WorldWideScience

Sample records for nuclear activity classification

  1. Progression in nuclear classification

    International Nuclear Information System (INIS)

    Wang Yuying

    1999-01-01

    In this book, summarize the author's achievements of nuclear classification by new method in latest 30 years, new foundational law of nuclear layer in matter world is found. It is explained with a hypothesis of a nucleus which it is made up of two nucleon's clusters with deuteron and triton. Its concrete content is: to advance a new method which analyze data of nuclei with natural abundance using relationship between the numbers of proton and neutron. The relationship of each nucleus increases to 4 sets: S+H=Z H+Z=N Z+N=A and S-H=K. To expand the similarity between proton and neutron to the similarity among p,n, deuteron, triton, and He-5 clusters. According to the distribution law of same kind of nuclei, it obtains that the upper limits of stable region both should be '44s'. New foundational law of nuclear system is 1,2,4,8,16,8,4,2,1. In order to explain new law, a hypothesis which nucleus is made up of deuteron and triton is developing and nuclear field of whole number is built up. And it relates that unity of matter motion, which is the most foundational form atomic nuclear systematic is similar to the most first-class form chromosome numbers of mankind. These achievements will shake the foundations of traditional nuclear science. These achievements will supply new tasks in developing nuclear theory. And shake the ground of which magic number is the basic of nuclear science. It opens up a new field on foundational research. The book will supply new knowledge for researcher, teachers and students in universities and polytechnic schools. Scientific workers read in works of research and technical exploit. It can be stored up for library and laboratory of society and universities. In nowadays of prosperity our nation by science and education, the book is readable for workers of scientific technology and amateurs of natural science

  2. Study on safety classifications of software used in nuclear power plants and distinct applications of verification and validation activities in each class

    International Nuclear Information System (INIS)

    Kim, B. R.; Oh, S. H.; Hwang, H. S.; Kim, D. I.

    2000-01-01

    This paper describes the safety classification regarding instrumentation and control (I and C) systems and their software used in nuclear power plants, provides regulatory positions for software important to safety, and proposes verification and validation (V and V) activities applied differently in software classes which are important elements in ensuring software quality assurance. In other word, the I and C systems important to safety are classified into IC-1, IC-2, IC-3, and Non-IC and their software are classified into safety-critical, safety-related, and non-safety software. Based upon these safety classifications, the extent of software V and V activities in each class is differentiated each other. In addition, the paper presents that the software for use in I and C systems important to safety is divided into newly-developed and previously-developed software in terms of design and implementation, and provides the regulatory positions on each type of software

  3. Active Learning for Text Classification

    OpenAIRE

    Hu, Rong

    2011-01-01

    Text classification approaches are used extensively to solve real-world challenges. The success or failure of text classification systems hangs on the datasets used to train them, without a good dataset it is impossible to build a quality system. This thesis examines the applicability of active learning in text classification for the rapid and economical creation of labelled training data. Four main contributions are made in this thesis. First, we present two novel selection strategies to cho...

  4. Low-level radioactive waste from nuclear power generating stations: Characterization, classification and assessment of activated metals and waste streams

    International Nuclear Information System (INIS)

    Thomas, V.W.; Robertson, D.E.; Thomas, C.W.

    1993-02-01

    Since the enactment of 10 CFR Part 61, additional difficult-to-measure long-lived radionuclides, not specified in Tables 1 2 of Part 61, have been identified (e.g., 108m Ag, 93 Mo, 36 Cl, 10 Be, 113m Cd, 121m Sn, 126 Sn, 93m Nb) that may be of concern in certain types of waste. These nuclides are primarily associated with activated metal and perhaps other nuclear power low-level waste (LLW) being sent to disposal facilities. The concentration of a radionuclide in waste materials is normally determined by direct measurement or by indirect calculational methods, such as using a scaling factor to relate inferred concentration of a difficult-to-measure radionuclide to another that is easily measured. The total disposal site inventory of certain difficult-to-measure radionuclides (e.g., 14 C, 129 I, and 99 Tc) often control the total quantities of radioactive waste permitted in LLW burial facilities. Overly conservative scaling factors based on lower limits of detection (LLD), often used in the nuclear power industry to estimate these controlling nuclides, could lead to premature closure of a disposal facility. Samples of LLW (Class B and C activated metals [AM] and other waste streams) are being collected from operating nuclear power stations and analyzed for radionuclides covered in 10 CFR Part 61 and the additional difficult-to-measure radionuclides. This analysis will enhance the NRC's understanding of the distribution and projected quantities of radionuclides within AM and LLW streams from commercial nuclear power stations. This research will also provide radiological characterization of AM specimens for others to use in leach-rate and lysimeter experiments to determine nuclide releases and subsequent movement in natural soil environments

  5. Protostome classification activity

    OpenAIRE

    Biederman, Lori

    2017-01-01

    I wrote this activity to have students work through the defining characteristics of various protostomes that I cover in my Introduction to Biology course. For in class materials I remove the red box (upper right corner) and print slides 4-18, place them back-to-back and laminate them.  The students get a key (slides 2 & 3) and an organism sheet and they are to answer the questions for each organism based on the info provided.   After class a...

  6. Special nuclear material information, security classification guidance. Instruction

    International Nuclear Information System (INIS)

    Flickinger, A.

    1982-01-01

    The Instruction reissues DoD Instruction 5210.67, July 5, 1979, and provides security classification guidance for information concerning significant quantities of special nuclear material, other than that contained in nuclear weapons and that used in the production of energy in the reactor plant of nuclear-powered ships. Security classification guidance for these data in the latter two applications is contained in Joint DoE/DoD Nuclear Weapons Classification Guide and Joint DoE/DoD Classification Guide for the Naval Nuclear Propulsion Program

  7. Safety classification of items in Tianwan Nuclear Power Plant

    International Nuclear Information System (INIS)

    Sun Yongbin

    2005-01-01

    The principle of integrality, moderation and equilibrium should be considered in the safety classification of items in nuclear power plant. The basic ways for safety classification of items is to classify the safety function based on the effect of the outside enclosure damage of the items (parts) on the safety. Tianwan Nuclear Power Plant adopts Russian VVER-1000/428 type reactor, it safety classification mainly refers to Russian Guidelines and standards. The safety classification of the electric equipment refers to IEEE-308(80) standard, including 1E and Non 1E classification. The safety classification of the instrumentation and control equipment refers to GB/T 15474-1995 standard, including safety 1E, safety-related SR and NC non-safety classification. The safety classification of Tianwan Nuclear Power Plant has to be approved by NNSA and satisfy Chinese Nuclear Safety Guidelines. (authors)

  8. Discussion on the safety classification of nuclear safety mechanical equipment

    International Nuclear Information System (INIS)

    Shen Wei

    2010-01-01

    The purpose and definition of the equipment safety classification in nuclear plant are introduced. The differences of several safety classification criterions are compared, and the object of safety classification is determined. According to the regulation, the definition and category of the safety functions are represented. The safety classification method, safety classification process, safety class interface, and the requirement for the safety class mechanical equipment are explored. At last, the relation of the safety classification between the mechanical and electrical equipment is presented, and the relation of the safety classification between mechanical equipment and system is also presented. (author)

  9. Nuclear reactors transients identification and classification system

    International Nuclear Information System (INIS)

    Bianchi, Paulo Henrique

    2008-01-01

    This work describes the study and test of a system capable to identify and classify transients in thermo-hydraulic systems, using a neural network technique of the self-organizing maps (SOM) type, with the objective of implanting it on the new generations of nuclear reactors. The technique developed in this work consists on the use of multiple networks to do the classification and identification of the transient states, being each network a specialist at one respective transient of the system, that compete with each other using the quantization error, that is a measure given by this type of neural network. This technique showed very promising characteristics that allow the development of new functionalities in future projects. One of these characteristics consists on the potential of each network, besides responding what transient is in course, could give additional information about that transient. (author)

  10. A study of a decommissioning activities classification structure for decommissioning of the project management of a nuclear power plant

    International Nuclear Information System (INIS)

    Park, Hee Seong; Park, Seung Kook; Jin, Hyung Gon; Song, Chan Ho; Ha, Jei Hyun; Moon, Jei kwon

    2015-01-01

    Decommissioning activities and requirements that was established in the planning stage should be organized systematically in the course of dismantling the NPP. The work breakdown structure is essential to ensuring that all the project scope is identified, estimated and executed. The project manager needs to ensure that a WBS is established early in the project and maintained throughout the project life cycle. A project management system is ongoing under the circumstance of having no experience dismantling the NPP. The system related to the NPP decommissioning should have technical criteria as well as regulatory requirements in the full scale of decommissioning stage. In the dismantling stage, decommissioning plan document should include the results of radiation/radioactivity characterization, evaluation of the amount of dismantled waste, calculation of the expose dose rate, evaluation of decommissioning cost and schedule after shutdown

  11. A study of a decommissioning activities classification structure for decommissioning of the project management of a nuclear power plant

    Energy Technology Data Exchange (ETDEWEB)

    Park, Hee Seong; Park, Seung Kook; Jin, Hyung Gon; Song, Chan Ho; Ha, Jei Hyun; Moon, Jei kwon [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2015-05-15

    Decommissioning activities and requirements that was established in the planning stage should be organized systematically in the course of dismantling the NPP. The work breakdown structure is essential to ensuring that all the project scope is identified, estimated and executed. The project manager needs to ensure that a WBS is established early in the project and maintained throughout the project life cycle. A project management system is ongoing under the circumstance of having no experience dismantling the NPP. The system related to the NPP decommissioning should have technical criteria as well as regulatory requirements in the full scale of decommissioning stage. In the dismantling stage, decommissioning plan document should include the results of radiation/radioactivity characterization, evaluation of the amount of dismantled waste, calculation of the expose dose rate, evaluation of decommissioning cost and schedule after shutdown.

  12. Safety classification of nuclear power plant systems, structures and components

    International Nuclear Information System (INIS)

    1992-01-01

    The Safety Classification principles used for the systems, structures and components of a nuclear power plant are detailed in the guide. For classification, the nuclear power plant is divided into structural and operational units called systems. Every structure and component under control is included into some system. The Safety Classes are 1, 2 and 3 and the Class EYT (non-nuclear). Instructions how to assign each system, structure and component to an appropriate safety class are given in the guide. The guide applies to new nuclear power plants and to the safety classification of systems, structures and components designed for the refitting of old nuclear power plants. The classification principles and procedures applying to the classification document are also given

  13. Sow-activity classification from acceleration patterns

    DEFF Research Database (Denmark)

    Escalante, Hugo Jair; Rodriguez, Sara V.; Cordero, Jorge

    2013-01-01

    sow-activity classification can be approached with standard machine learning methods for pattern classification. Individual predictions for elements of times series of arbitrary length are combined to classify it as a whole. An extensive comparison of representative learning algorithms, including......This paper describes a supervised learning approach to sow-activity classification from accelerometer measurements. In the proposed methodology, pairs of accelerometer measurements and activity types are considered as labeled instances of a usual supervised classification task. Under this scenario...... neural networks, support vector machines, and ensemble methods, is presented. Experimental results are reported using a data set for sow-activity classification collected in a real production herd. The data set, which has been widely used in related works, includes measurements from active (Feeding...

  14. Hazard classification of environmental restoration activities at the INEL

    International Nuclear Information System (INIS)

    Peatross, R.G.

    1996-04-01

    The following documents require that a hazard classification be prepared for all activities for which US Department of Energy (DOE) has assumed environmental, safety, and health responsibility: the DOE Order 5481.1B, Safety Analysis and Review System and DOE Order 5480.23, Nuclear Safety Analysis Reports. A hazard classification defines the level of hazard posed by an operation or activity, assuming an unmitigated release of radioactive and nonradioactive hazardous material. For environmental restoration activities, the release threshold criteria presented in Hazard Baseline Documentation (DOE-EM-STD-5502-94) are used to determine classifications, such as Radiological, Nonnuclear, and Other Industrial facilities. Based upon DOE-EM-STD-5502-94, environmental restoration activities in all but one of the sites addressed by the scope of this classification (see Section 2) can be classified as ''Other Industrial Facility''. DOE-EM-STD-5502-94 states that a Health and Safety Plan and compliance with the applicable Occupational Safety and Health Administration (OSHA) standards are sufficient safety controls for this classification

  15. A unique criterion for the classification of the activity of radioactive effluents according to the activity

    International Nuclear Information System (INIS)

    Tasovac, T.; Bojovic, P.; Svabic, A.

    1964-10-01

    The present classification of radioactive effluents into categories, i.e. low, medium, high and very high activity, has not been given a definite criterion. Therefore, some categories include specific activities from 2-6 and more potentials. Therefore, it occurs that the category of medium active effluents in one nuclear center is indicated as low active in the second or as highly active in the third. Therefore, a proposal is given in this paper for a unique criterion for the classification of radioactive effluents according to their activities. This proposal is based on the decontamination factors obtained by various methods and the maximum permissible concentrations of radioactive isotopes in water (author)

  16. Classification of nuclear plant cost to energy

    International Nuclear Information System (INIS)

    Long, G.A.

    1983-01-01

    In order to understand why the fixed-cost/variable-cost method of classifying nuclear plant costs can lead to rate discontinuities, the author must examine the factors which lead to the decision to build a nuclear power plant and the interrelationship between demand (KW) and energy (KWH). The problems and inequities associated with the nuclear plants can be avoided by recognizing that fixed costs are related to both demand and energy and by using a costing methodology which closely relates to the functional purpose of the plant. Generally, this leads to classifying fixed costs of nuclear plants primarily to the energy function in an embedded cost-of-service study and through either implicit or explicit recognition of fuel savings in a marginal cost study. The large rate discontinuities which occurred in the scenario can be resolved. Costs associated with demand or energy charges remain relatively stable compared to actual capacity costs and customers would not experience large changes in their bills due solely to a particular costing convention

  17. Evaluation of nuclear power plant operating procedures classifications and interfaces: Problems and techniques for improvement

    International Nuclear Information System (INIS)

    Barnes, V.E.; Radford, L.R.

    1987-02-01

    This report presents activities and findings of a project designed to evaluate current practices and problems related to procedure classification schemes and procedure interfaces in commercial nuclear power plants. The phrase ''procedure classification scheme'' refers to how plant operating procedures are categorized and indexed (e.g., normal, abnormal, emergency operating procedures). The term ''procedure interface'' refers to how reactor operators are instructed to transition within and between procedures. The project consisted of four key tasks, including (1) a survey of literature regarding problems associated with procedure classifications and interfaces, as well as techniques for overcoming them; (2) interviews with experts in the nuclear industry to discuss the appropriate scope of different classes of operating procedures and techniques for managing interfaces between them; (3) a reanalysis of data gathered about nuclear power plant normal operating and off-normal operating procedures in a related project, ''Program Plan for Assessing and Upgrading Operating Procedures for Nuclear Power Plants''; and (4) solicitation of the comments and expert opinions of a peer review group on the draft project report and on proposed techniques for resolving classification and interface issues. In addition to describing these activities and their results, recommendations for NRC and utility actions to address procedure classification and interface problems are offered

  18. Worker in nuclear activity

    International Nuclear Information System (INIS)

    Goes Fischer, M.D. de; Associacao Brasileira de Direito Nuclear, Rio de Janeiro)

    1984-01-01

    Juridical aspects with respect to the workers in nuclear activity are presented. Special emphasis is given to the clauses of the statute of workers (Consolidacao das Leis do Trabalho) the rules of the Ministerio do Trabalho and the rules of the Comissao Nacional de Energia Nuclear. The performance of the international authorities is also emphasized such as the International Labour Organization, the International Atomic Energy Agency and the International Radiological Protection Commission. (Author) [pt

  19. Research on quality assurance classification methodology for domestic AP1000 nuclear power projects

    International Nuclear Information System (INIS)

    Bai Jinhua; Jiang Huijie; Li Jingyan

    2012-01-01

    To meet the quality assurance classification requirements of domestic nuclear safety codes and standards, this paper analyzes the quality assurance classification methodology of domestic AP1000 nuclear power projects at present, and proposes the quality assurance classification methodology for subsequent AP1000 nuclear power projects. (authors)

  20. Accidents in nuclear facilities: classification, incidence and impact

    International Nuclear Information System (INIS)

    Galicia A, J.; Paredes G, L. C.

    2012-10-01

    A general analysis of the 146 accidents reported officially in nuclear facilities from 1945 to 2012 is presented, among them some took place in: power or research nuclear reactors, critical and subcritical nuclear assemblies, handling of nuclear materials inside laboratories belonging to institutes or universities, in radiochemistry industrial plants and nuclear fuel factories. In form graph the incidence of these accidents is illustrated classified for; category, decades, geographical localization, country classification before the OECD, failure type, and the immediate or later victims. On the other hand, the main learned lessons of the nuclear accidents of Three Mile Island, Chernobyl and Fukushima are stood out, among those that highlight; the human factors, the necessity of designs more innovative and major technology for the operation, control and surveillance of the nuclear facilities, to increase the criterions of nuclear, radiological and physics safety applied to these facilities, the necessity to carry out probabilistic analysis of safety more detailed for cases of not very probable accidents and their impact, to revalue the selection criterions of the sites for nuclear locations, the methodology of post-accident sites recovery and major instrumentation for parameters evaluation and the radiological monitoring among others. (Author)

  1. Systematic classification of civil society contributions to nuclear safeguards

    Energy Technology Data Exchange (ETDEWEB)

    Kalinowski, Martin B. [Universitaet Hamburg, Carl Friedrich von Weizsaecker, Centre for Science and Peace Research (ZNF) Hamburg (Germany)

    2012-06-15

    Civil Society is increasingly involved in the policy area of international arms control. Their opportunities are very limited for compliance control in the nuclear nonproliferation regime due to its particular sensitivity. The severe gaps of nuclear safeguards with respect to the capabilities to detect clandestine facilities render marginal civil society contributions highly influential and controversial. More and more data get available for the civil society that can be used to expose potential violations of the NPT. A systematic framework is presented to classify civil society contributions that allows for a systematic study. This classification uses the two parameters (a) affected safeguards stage and (b) degree of integration with the official procedures. These parameters may have the following defined values: (a) The affected safeguards stage can be i. Development and demonstration of new methodologies and technologies ii. Fact finding and data gathering iii. Sharing and publication of data and information iv. Technical analysis of data and information v. Determination of non-compliance vi. Political interpretation (b) The degree of integration can be i. Without a relation ii. Indirect connection iii. Informal interaction iv. Official contribution or mandate. A prominent example for civil society contributions is the increasing availability and capability to acquire and analyze satellite images. An emerging field is environmental sampling, analysis and related atmospheric transport simulation. These and other opportunities are put in the systematic framework to discuss their demonstrated and potential impact. In particular, possible contributions that civil society may offer for improving the detectability of unreported facilities and activities are considered with their chances and risks.

  2. Hazard classification criteria for non-nuclear facilities

    International Nuclear Information System (INIS)

    Mahn, J.A.; Walker, S.A.

    1997-01-01

    Sandia National Laboratories' Integrated Risk Management Department has developed a process for establishing the appropriate hazard classification of a new facility or operation, and thus the level of rigor required for the associated authorization basis safety documentation. This process is referred to as the Preliminary Hazard Screen. DOE Order 5481.1B contains the following hazard classification for non-nuclear facilities: high--having the potential for onsite or offsite impacts to large numbers of persons or for major impacts to the environment; moderate--having the potential for considerable onsite impacts but only minor offsite impacts to people or the environment; low--having the potential for only minor onsite and negligible offsite impacts to people or the environment. It is apparent that the application of such generic criteria is more than likely to be fraught with subjective judgment. One way to remove the subjectivity is to define health and safety classification thresholds for specific hazards that are based on the magnitude of the hazard, rather than on a qualitative assessment of possible accident consequences. This paper presents the results of such an approach to establishing a readily usable set of non-nuclear facility hazard classifications

  3. IR-360 nuclear power plant safety functions and component classification

    Energy Technology Data Exchange (ETDEWEB)

    Yousefpour, F., E-mail: fyousefpour@snira.co [Management of Nuclear Power Plant Construction Company (MASNA) (Iran, Islamic Republic of); Shokri, F.; Soltani, H. [Management of Nuclear Power Plant Construction Company (MASNA) (Iran, Islamic Republic of)

    2010-10-15

    The IR-360 nuclear power plant as a 2-loop PWR of 360 MWe power generation capacity is under design in MASNA Company. For design of the IR-360 structures, systems and components (SSCs), the codes and standards and their design requirements must be determined. It is a prerequisite to classify the IR-360 safety functions and safety grade of structures, systems and components correctly for selecting and adopting the suitable design codes and standards. This paper refers to the IAEA nuclear safety codes and standards as well as USNRC standard system to determine the IR-360 safety functions and to formulate the principles of the IR-360 component classification in accordance with the safety philosophy and feature of the IR-360. By implementation of defined classification procedures for the IR-360 SSCs, the appropriate design codes and standards are specified. The requirements of specific codes and standards are used in design process of IR-360 SSCs by design engineers of MASNA Company. In this paper, individual determination of the IR-360 safety functions and definition of the classification procedures and roles are presented. Implementation of this work which is described with example ensures the safety and reliability of the IR-360 nuclear power plant.

  4. IR-360 nuclear power plant safety functions and component classification

    International Nuclear Information System (INIS)

    Yousefpour, F.; Shokri, F.; Soltani, H.

    2010-01-01

    The IR-360 nuclear power plant as a 2-loop PWR of 360 MWe power generation capacity is under design in MASNA Company. For design of the IR-360 structures, systems and components (SSCs), the codes and standards and their design requirements must be determined. It is a prerequisite to classify the IR-360 safety functions and safety grade of structures, systems and components correctly for selecting and adopting the suitable design codes and standards. This paper refers to the IAEA nuclear safety codes and standards as well as USNRC standard system to determine the IR-360 safety functions and to formulate the principles of the IR-360 component classification in accordance with the safety philosophy and feature of the IR-360. By implementation of defined classification procedures for the IR-360 SSCs, the appropriate design codes and standards are specified. The requirements of specific codes and standards are used in design process of IR-360 SSCs by design engineers of MASNA Company. In this paper, individual determination of the IR-360 safety functions and definition of the classification procedures and roles are presented. Implementation of this work which is described with example ensures the safety and reliability of the IR-360 nuclear power plant.

  5. Nuclear Activities (Prohibitions) Act 1983

    International Nuclear Information System (INIS)

    1983-01-01

    The purpose of this Act is to protect the health and safety of the people of Victoria and its environment by prohibiting nuclear activities from being carried out and regulating the possession of certain nuclear material in a manner consistent with assisting Australia in meeting its international nuclear non-proliferation objectives. (NEA) [fr

  6. Nuclear fuel activities in Belgium

    Energy Technology Data Exchange (ETDEWEB)

    Bairiot, H

    1997-12-01

    In his presentation on nuclear fuel activities in belgium the author considers the following directions of this work: fuel fabrication, NPP operation, fuel performance, research and development programmes.

  7. Activation analysis. A basis for chemical similarity and classification

    Energy Technology Data Exchange (ETDEWEB)

    Beeck, J OP de [Ghent Rijksuniversiteit (Belgium). Instituut voor Kernwetenschappen

    1977-01-01

    It is shown that activation analysis is especially suited to serve as a basis for determining the chemical similarity between samples defined by their trace-element concentration patterns. The general problem of classification and identification is discussed. The nature of possible classification structures and their appropriate clustering strategies is considered. A practical computer method is suggested and its application as well as the graphical representation of classification results are given. The possibility for classification using information theory is mentioned. Classification of chemical elements is discussed and practically realized after Hadamard transformation of the concentration variation patterns in a series of samples.

  8. Analysis of effect of safety classification on DCS design in nuclear power plants

    International Nuclear Information System (INIS)

    Gou Guokai; Li Guomin; Wang Qunfeng

    2011-01-01

    By analyzing the safety classification for the systems and functions of nuclear power plants based on the general design requirements for nuclear power plants, especially the requirement of availability and reliability of I and C systems, the characteristics of modem DCS technology and I and C products currently applied in nuclear power field are interpreted. According to the requirements on the safety operation of nuclear power plants and the regulations for safety audit, the effect of different safety classifications on DCS design in nuclear power plants is analyzed, by considering the actual design process of different DCS solutions in the nuclear power plants under construction. (authors)

  9. What does the activation of a classification and decontamination station involve?

    International Nuclear Information System (INIS)

    2002-01-01

    On 1 October 1999, the Council of Ministers adopted a resolution urging the Nuclear Safety Council to inform the public on the health protection measures to take and the procedure to follow in a radiological emergency. The content of this articles describes the activation and work of stations for the classification and decontamination of persons, a procedure provided for in the Provincial Nuclear Emergency Plans. (Author)

  10. Nuclear Activities in Argentina, 2010

    International Nuclear Information System (INIS)

    Ferreri, J.C.; Ferreri, J.C.; Clausse, A.; Clausse, A.; Clausse, A.; Ordonez, J.P.; Mazzantini, O.A.

    2011-01-01

    Nuclear activities in Argentina are restarted. After almost two decades of near stagnation, the governments political decision of August 2006 regarding electrical energy production, considered the nuclear option as a valid one to solve the problems of the growing demand of electrical energy. This decision triggered again the activities related to the finalization of the third nuclear power reactor (Atucha-II), now actively progressing, the construction of a prototype of the CAREM integral advanced reactor, the life extension of the Embalse CANDU nuclear power plant (NPP) and the studies for the emplacement of a fourth NPP in an appropriate site. In all those years of near stagnation, there were notable exceptions related to the design and construction of experimental and radioisotope production reactors, led by INVAP, a state-owned industry, which exported its production. The accompanying industries of nuclear fuel elements production also remained active, given the demand of the two active NPPs. Meanwhile, the National Atomic Energy Commission of Argentina continued the efforts on research and development that were at the base of the technological achievements of the nuclear activities in Argentina. Nuclear safety studies associated with Atucha II and Embalse NPPs and radiological safety were also a substantive part of the continued efforts by Nucleo-Electrica de Argentina SA and the Nuclear Regulatory Authority of Argentina

  11. Public acceptance in nuclear activities

    International Nuclear Information System (INIS)

    Paunescu, A.; Stiopol, M.; Manole, F.; Petran, C.; Chiper, L.

    1998-01-01

    All over the world the most part of population considers nuclear power as the energy of the future. To reinforce this opinion some fundamental requirements should be met, namely: - nuclear facilities and power plants should be safe and competitive in point of costs; - nuclear activity should record no severe accidents; - to make actual progress in the field of radwaste management and disposal; - to actually witness and increase of electric power demands. In Romania the activities related to the nuclear research and power sum-up about 40 years of experience and these can be structured as per the following directions: - nuclear power and related activities (industrial, mining, processing, storage); - research reactors; - nuclear sciences and techniques and their applications. Public opinion information is aimed at assisting such activities and make the public familiar with the concepts typical for the nuclear field. Generally, there is a feeling of fear on the part of the officials in supporting the nuclear. The basic cause would be application of on incomplete and obsolete model when educating the public opinion. That model leads to the conclusion that the open expression of one's support in favour of nuclear is a political risk. A new, more, comprehensive model leading to different conclusions was conceived and finalized lately. The two models are different from each other by 3 characteristic elements: - influence of perception; - approach of the opinion; - definition of the support. The paper describes the actions undertaken in Romania in order to fulfill these requirements

  12. Specific classification of financial analysis of enterprise activity

    Directory of Open Access Journals (Sweden)

    Synkevych Nadiia I.

    2014-01-01

    Full Text Available Despite the fact that one can find a big variety of classifications of types of financial analysis of enterprise activity, which differ with their approach to classification and a number of classification features and their content, in modern scientific literature, their complex comparison and analysis of existing classification have not been done. This explains urgency of this study. The article studies classification of types of financial analysis of scientists and presents own approach to this problem. By the results of analysis the article improves and builds up a specific classification of financial analysis of enterprise activity and offers classification by the following features: objects, subjects, goals of study, automation level, time period of the analytical base, scope of study, organisation system, classification features of the subject, spatial belonging, sufficiency, information sources, periodicity, criterial base, method of data selection for analysis and time direction. All types of financial analysis significantly differ with their inherent properties and parameters depending on the goals of financial analysis. The developed specific classification provides subjects of financial analysis of enterprise activity with a possibility to identify a specific type of financial analysis, which would correctly meet the set goals.

  13. Application of the Safety Classification of Structures, Systems and Components in Nuclear Power Plants

    International Nuclear Information System (INIS)

    2016-04-01

    This publication describes how to complete tasks associated with every step of the classification methodology set out in IAEA Safety Standards Series No. SSG-30, Safety Classification of Structures, Systems and Components in Nuclear Power Plants. In particular, how to capture all the structures, systems and components (SSCs) of a nuclear power plant to be safety classified. Emphasis is placed on the SSCs that are necessary to limit radiological releases to the public and occupational doses to workers in operational conditions This publication provides information for organizations establishing a comprehensive safety classification of SSCs compliant with IAEA recommendations, and to support regulators in reviewing safety classification submitted by licensees

  14. Catalogue and classification of technical safety standards, rules and regulations for nuclear power reactors and nuclear fuel cycle facilities

    International Nuclear Information System (INIS)

    Fichtner, N.; Becker, K.; Bashir, M.

    1977-01-01

    The present report is an up-dated version of the report 'Catalogue and Classification of Technical Safety Rules for Light-water Reactors and Reprocessing Plants' edited under code No EUR 5362e, August 1975. Like the first version of the report, it constitutes a catalogue and classification of standards, rules and regulations on land-based nuclear power reactors and fuel cycle facilities. The reasons for the classification system used are given and discussed

  15. Military nuclear activities. Strategic prospects

    International Nuclear Information System (INIS)

    Coldefy, Alain; Wodka-Gallien, Philippe; Tertrais, Bruno; Rouillard, Gwendal; Widemann, Thierry; Guillaume, Louis-Michel; Steininger, Philippe; Guillemette, Alain; Amabile, Jean-Christophe; Granger-Veyron, Nicolas; Carbonnieres, Hubert de; Roche, Nicolas; Guillou, Herve; Bouvier, Antoine; Pastre, Bertrand; Baconnet, Alexis; Monsonis, Guillem; Brisset, Jean-Vincent; Hemez, Remy; Tchernega, Vladimir; Wedin, Lars; Dumoulin, Andre; Razoux, Pierre; Migault, Philippe; Wilson, Ward; Maillard, Benjamin de; Aichi, Leila; Charvoz, Ivan; Rousset, Valery; Lespinois, Jerome de; Kempf, Olivier; Dufourcq, Jean; Gere, Francois; Mauro, Frederic; Delort Laval, Gabriel; Charaix, Patrick; Norlain, Bernard; Collin, Jean-Marie; Jourdier, Francois

    2015-01-01

    This special dossier aims at providing some key articles about France's deterrence doctrine. It provides a comprehensive overview of the challenges and questions about military nuclear activities and opens up some future prospects about this question. The dossier comprises 37 papers dealing with: 1 - Military nuclear activities: yesterday, today, tomorrow (Coldefy, A.); 2 - Deterrence according to French President Francois Hollande: continuation, precision and inflexions (Tertrais, B.); 3 - French deterrence warrantor of our independence in the 21. century (Rouillard, G.); 4 - The deterrence concept prior to the nuclear weapon era (Widemann, T.); 5 - France: the strategic marine force in operation (Guillaume, L.M.); 6 - Relevance of the airborne component in the nuclear deterrence strategy (Steininger, P.); 7 - Deterrence stakes for the Directorate General of Armaments (Guillemette, A.); 8 - The Charles-de-Gaulle aircraft carrier: the deterrence voice from the sea (Wodka-Gallien, P.); 9 - Deterrence: missions of the army's radiation protection department (Amabile, J.C.; Granger-Veyron, N.; Carbonnieres, H. de); 10 - The French Atomic Energy Commission (CEA) and the French defense strategy (Roche, N.); 11 - DCNS, general contractor in the service of deterrence (Guillou, H.); 12 - The airborne nuclear component for MBDA (Bouvier, A.); 13 - Ballistic missile of the marine nuclear component: industrial stakes (Pastre, B.); 14 - Beyond defense against missiles: a US anti-deterrence strategy (Baconnet, A.); 15 - Deterrence dynamics in South Asia (Monsonis, G.); 16 - Military nuclear activities in East Asia (Brisset, J.V.); 17 - North Korea would own nuclear weapons, so what? (Hemez, R.); 18 - About the risk of nuclear warfare in Europe (Tchernega, V.); 19 - Present day nuclear activities: deterrence and gesticulation (Wedin, L.); 20 - Belgian F-16 replacement: nuclear dimension (Dumoulin, A.); 21 - Israel and nuclear deterrence (Razoux, P.); 22 - Nuclear

  16. Classification of tubulo-papillary renal cortical tumours using estimates of nuclear volume

    DEFF Research Database (Denmark)

    Brooks, B; Sørensen, Flemming Brandt; Olsen, S

    1993-01-01

    The classification of renal cortical tumours is problematic, with no clear division of benign from malignant tumours. Unbiased stereological estimates of volume-weighted nuclear volume (nuclear vv) were obtained by point sampling of nuclear intercepts in a retrospective study of 36 variably sized...

  17. Active Learning of Classification Models with Likert-Scale Feedback.

    Science.gov (United States)

    Xue, Yanbing; Hauskrecht, Milos

    2017-01-01

    Annotation of classification data by humans can be a time-consuming and tedious process. Finding ways of reducing the annotation effort is critical for building the classification models in practice and for applying them to a variety of classification tasks. In this paper, we develop a new active learning framework that combines two strategies to reduce the annotation effort. First, it relies on label uncertainty information obtained from the human in terms of the Likert-scale feedback. Second, it uses active learning to annotate examples with the greatest expected change. We propose a Bayesian approach to calculate the expectation and an incremental SVM solver to reduce the time complexity of the solvers. We show the combination of our active learning strategy and the Likert-scale feedback can learn classification models more rapidly and with a smaller number of labeled instances than methods that rely on either Likert-scale labels or active learning alone.

  18. Active Metric Learning for Supervised Classification

    OpenAIRE

    Kumaran, Krishnan; Papageorgiou, Dimitri; Chang, Yutong; Li, Minhan; Takáč, Martin

    2018-01-01

    Clustering and classification critically rely on distance metrics that provide meaningful comparisons between data points. We present mixed-integer optimization approaches to find optimal distance metrics that generalize the Mahalanobis metric extensively studied in the literature. Additionally, we generalize and improve upon leading methods by removing reliance on pre-designated "target neighbors," "triplets," and "similarity pairs." Another salient feature of our method is its ability to en...

  19. Nuclear power plant systems, structures and components and their safety classification

    International Nuclear Information System (INIS)

    2000-01-01

    The assurance of a nuclear power plant's safety is based on the reliable functioning of the plant as well as on its appropriate maintenance and operation. To ensure the reliability of operation, special attention shall be paid to the design, manufacturing, commissioning and operation of the plant and its components. To control these functions the nuclear power plant is divided into structural and functional entities, i.e. systems. A systems safety class is determined by its safety significance. Safety class specifies the procedures to be employed in plant design, construction, monitoring and operation. The classification document contains all documentation related to the classification of the nuclear power plant. The principles of safety classification and the procedures pertaining to the classification document are presented in this guide. In the Appendix of the guide, examples of systems most typical of each safety class are given to clarify the safety classification principles

  20. Classification and handling of non-conformance item of nuclear class equipment during manufacture phase

    International Nuclear Information System (INIS)

    Wang Ruiping

    2001-01-01

    Based on inspection experiences in years on nuclear class equipment manufacturing, the author discusses the classification and handling of non-conformance items occurred during equipment manufacturing, and certain technical considerations are presented

  1. Handbook on nuclear activation data

    International Nuclear Information System (INIS)

    1987-01-01

    This Handbook is being issued for the particular benefit of scientists working in the fields of education and industrial applications using nuclear activation methods, as well as in basic research. The content of the report is divided into four parts: standard reference data, neutron activation data, charged particle activation data and photonuclear activation data. The emphasis is on evaluated or recommended values rather than on an exhaustive presentation of all experimental results

  2. Methodology for safety classification of PWR type nuclear power plants items

    International Nuclear Information System (INIS)

    Oliveira, Patricia Pagetti de

    1995-01-01

    This paper contains the criteria and methodology which define a classification system of structures, systems and components in safety classes according to their importance to nuclear safety. The use of this classification system will provide a set of basic safety requirements associated with each safety class specified. These requirements, when available and applicable, shall be utilized in the design, fabrication and installation of structures, systems and components of Pressurized Water Reactor Nuclear Power Plants. (author). 13 refs, 1 tab

  3. Transparency of nuclear regulatory activities

    International Nuclear Information System (INIS)

    2007-01-01

    One of the main missions of nuclear regulators is to protect the public, and this cannot be completely achieved without public confidence. The more a regulatory process is transparent, the more such confidence will grow. Despite important cultural differences across countries, a number of common features characterise media and public expectations regarding any activity with an associated risk. A common understanding of transparency and main stakeholders' expectations in the field of nuclear safety were identified during this workshop, together with a number of conditions and practices aimed at improving the transparency of nuclear regulatory activities. These conditions and practices are described herein, and will be of particular interest to all those working in the nuclear regulatory field. Their implementation may, however, differ from one country to another depending on national context. (authors)

  4. Nuclear fuel activities in Canada

    Energy Technology Data Exchange (ETDEWEB)

    Cox, D S [Fuel Development Branch, Chalk River Labs., AECL (Canada)

    1997-12-01

    Nuclear fuel activities in Canada are considered in the presentation on the following directions: Canadian utility fuel performance; CANDU owner`s group fuel programs; AECL advanced fuel program (high burnup fuel behaviour and development); Pu dispositioning (MOX) activities. 1 tab.

  5. Organization of nuclear regulatory activities

    International Nuclear Information System (INIS)

    Blidaru, Valentin

    2008-01-01

    The paper presents the structure, missions and organizational aspects of the CNCAN, the National Commission for the control of nuclear activities in Romania. The paper addresses the following main issues: 1.General aspects; 2.Organizational structure of the NRA in Romania; 3.General description of the Division for Nuclear Safety Assessments; 4.Specific activities; 5.Regulatory approaches and practices. Under the title of 'General aspects' the following three basic statements are highlighted: 1.CNCAN is a governmental organization responsible for the development of the regulatory framework, the control of its implementation and the licensing of nuclear facilities; 2.CNCAN is the national authority competent in exercising the regulatory activity, authorization and control in the nuclear field provided by the law No. 111/ 1996 republished in 1998; 3.The Commission exercises its functions independently of the ministries and other authorities of the public control administration being subordinated to the Romanian Government. The organizational structure is as follows: - President, the Managerial Council and the Advisory Council coordinating the four General Divisions that are responsible for: - Nuclear Safety with Division of Nuclear Safety Assessment and Division of Nuclear Objectives Surveillance; - Radiological Safety with Division of Radiological Safety Assessment and Division of Operational Radiation Protection; - Surveillance of Environmental Radioactivity with Division of Assessment and Analysis and Division of National Network; - Development and Resource with the Division of Economy and Division of Human Resources. In addition under direct coordination of the President operate the Division of Radiation Protection, Transport and Radioactive Waste and the Division of International Cooperation and Communication. Specific activities are listed describing among others the issues of: - Safety of nuclear installation; - Evaluation relating to licensing of nuclear

  6. Classification of nuclear power plant operator support systems

    International Nuclear Information System (INIS)

    Alpeev, A.S.

    1994-01-01

    The objective of this survey was to examine the general characteristics of modern nuclear power plant process monitoring/control systems and to apply developing technology (intellectual automation) in order to improve the man-machine interface. The support systems that implement each phase of the control function...information, assessment, decision-making, and implementation...were discussed, and where applicable, intellectual automation was applied to the support system. It was concluded that the application of intellectual automation, as well as other (undefined) possibilities for improving the man-machine interface, would relieve the operator of many routine activities and allow him to readily apply high potential to those poorly-formalized scenarios in which the operator's work can't be automated. It was also concluded that the development of such support systems would not be without problems, i.e. software certification, traning, and jurisdictional questions

  7. Civil liability on nuclear activities

    International Nuclear Information System (INIS)

    Bittar, C.A.

    1982-01-01

    The civil liability theory in the actual context is shown in the first and second part of this thesis, including some considerations about concepts and types of liability in dangerous and not dangerous activities. In the third part, the legal aspects of civil liability for the nuclear activities are analyzed, with a brief description of the history evolution, standard systems, inspection corporation and juridical regulation. (C.G.C.). 239 refs

  8. Nuclear data activities in Korea

    International Nuclear Information System (INIS)

    Chang, Jonghwa; Lee, Young-Ouk

    2002-01-01

    The situation of the nuclear data project in Korea is reviewed in this paper. The results of the first stage from 1997 - 2000 are reviewed with associated application projects such as a test reactor HANARO, a light water reactor project SMART, a liquid metal reactor project KALIMER, an ADS project KOMAC, a waste project, medial application, and electron linac application. The strategy for setting up the second stage, during 2001 - 2004, are introduced. The user requirement, quality assurance, nuclear data processing, service, and measurement activity are reviewed. (author)

  9. Status of nuclear data activities in Korea

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Young-Ouk; Chang, Jonghwa [Nuclear Data Evaluation Lab., Korea Atomic Energy Research Inst., Yusung, Taejon 305-600 (Korea, Republic of)

    1998-03-01

    Although nuclear data activities in Korea are still in the early stage, considerable demands for more accurate and wide-range nuclear data from nuclear R and D fields activated a new nuclear data project titled as `Development of Nuclear Data System`. It was launched this year as one of nation-wide long-term nuclear R and D programs in Korea for the next decade. Its main goals are (1) to establish nuclear data system, (2) to build up the infra-structure for utilization of nuclear data and (3) to develop highly reliable nuclear data system. To achieve these goals, international cooperation and cultivation of human resource as well as construction of measurement facilities will be indispensable. This report briefly describes the demands of nuclear data from the nuclear R and D programs, current nuclear data activities and future plan with its strategy. (author)

  10. Status of nuclear data activities in Korea

    International Nuclear Information System (INIS)

    Lee, Young-Ouk; Chang, Jonghwa

    1998-01-01

    Although nuclear data activities in Korea are still in the early stage, considerable demands for more accurate and wide-range nuclear data from nuclear R and D fields activated a new nuclear data project titled as 'Development of Nuclear Data System'. It was launched this year as one of nation-wide long-term nuclear R and D programs in Korea for the next decade. Its main goals are 1) to establish nuclear data system, 2) to build up the infra-structure for utilization of nuclear data and 3) to develop highly reliable nuclear data system. To achieve these goals, international cooperation and cultivation of human resource as well as construction of measurement facilities will be indispensable. This report briefly describes the demands of nuclear data from the nuclear R and D programs, current nuclear data activities and future plan with its strategy. (author)

  11. Improved Management of Part Safety Classification System for Nuclear Power Plant

    Energy Technology Data Exchange (ETDEWEB)

    Park, Jin Young; Park, Youn Won; Park, Heung Gyu; Park, Hyo Chan [BEES Inc., Daejeon (Korea, Republic of)

    2016-10-15

    As, in recent years, many quality assurance (QA) related incidents, such as falsely-certified parts and forged documentation, etc., were reported in association with the supply of structures, systems, components and parts to nuclear power plants, a need for a better management of safety classification system was addressed so that it would be based more on the level of parts . Presently, the Korean nuclear power plants do not develop and apply relevant procedures for safety classifications, but rather the safety classes of parts are determined solely based on the experience of equipment designers. So proposed in this paper is a better management plan for safety equipment classification system with an aim to strengthen the quality management for parts. The plan was developed through the analysis of newly introduced technical criteria to be applied to parts of nuclear power plant.

  12. Establishment of land model at the Shika Nuclear Power Plant. Mainly, on rock board classification

    International Nuclear Information System (INIS)

    Katagawa, Hideki; Hashimoto, Toru; Hirano, Shuji

    1999-01-01

    In order to grasp engineering properties of basic land of constructions, there is rock board classification as a method to classify whole of rock board to some groups considerable to be nearly equal on its properties. Among the method, various methods in response to its aim and characteristics are devised, and for a classification to hard rock board, the Denken type rock board classification considering degree of weathering to its main element and so forth are well known. The basic rock board of the Shika Nuclear Power Plant is composed of middle and hard types of rock, and its weathering is limited to its shallow portion, most of which are held at fresh condition. For such land, a new classification standard in response to characteristics of land was established. Here were introduced on a progress to establish a new classification standard, its application results and rock board properties. (G.K.)

  13. Classification

    Science.gov (United States)

    Clary, Renee; Wandersee, James

    2013-01-01

    In this article, Renee Clary and James Wandersee describe the beginnings of "Classification," which lies at the very heart of science and depends upon pattern recognition. Clary and Wandersee approach patterns by first telling the story of the "Linnaean classification system," introduced by Carl Linnacus (1707-1778), who is…

  14. Activity of Armenian Nuclear Authority

    International Nuclear Information System (INIS)

    Martirosyan, A.; Kurghinyan, V.

    2001-01-01

    The activities of the Armenian regulatory body (ANRA) during 2000 includes: development of normative documents in the field of the peaceful use of atomic energy; supervision for nuclear and radiation safety; personnel training and international co-operation. In the field of nuclear legislation a project of a decree of RA Government 'About making scientific and technical center on nuclear and radiation safety' and 'Requirements to a format and content of the safety analysis report for the unit 2 of ANPP' are prepared. During the year 13 inspections have been carried out in the following direction: modernization, performance of measures re-apprising of seismic safety; performance of the operational control of metal of equipment and tubes, observation of radiation safety, safety control of radioactive waste, emergency preparedness. A statistics of the incidents after the starting-up with INES rating (1995) is presented. In 2000 3 events (2 of level 0 and 1 of level 1) took place. The training activities include the set-up of a new multifunctional simulator, personnel training and examinations. The international co-operation activities connected with IAEA, NRC, European Commission and other countries are presented

  15. Activities report in nuclear physics

    NARCIS (Netherlands)

    Jansen, J. F. W.; Scholten, O.

    1987-01-01

    Experimental studies of giant resonances, nuclear structure, light mass systems, and heavy mass systems are summarized. Theoretical studies of nuclear structure, and dynamics are described. Electroweak interactions; atomic and surface physics; applied nuclear physics; and nuclear medicine are

  16. Systematics of gamma-ray energy spectra for classification of workplaces around a nuclear facility

    International Nuclear Information System (INIS)

    Urabe, Itsumasa; Tsujimoto, Tadashi; Katsurayama, Kousuke

    1988-01-01

    Radiation dosimetry in workplaces has been carried out both for assurance of the doses complying with the acceptable values and for improvement of protection methods to minimise detriments of the exposed population. This means that it is very important not only to determine dosimetric quantities in workplaces but also to know features of radiation levels because information for radiation protection can often be derived from the radiometric quantities. Classification of workplaces based on the feature of gamma-ray energy spectra is one of the practical ways to realise radiation protection being taken into consideration of the radiometric quantities. Furthermore, demarcation of workplaces based on these radiometric quantities may be effective for improvement of radiation protection practice such as estimation of radiation doses, designing of radiation shields and other activities. From these points of view, gamma-ray energy spectra have been determined in various workplaces in nuclear facilities, and systematics of gamma-ray fields were tried for classification of workplaces on the basis of the feature appeared in health physical quantities such as effective dose equivalents and responses of dosemeters

  17. ERC hazard classification matrices for above ground structures and groundwater and soil remediation activities

    International Nuclear Information System (INIS)

    Curry, L.R.

    1997-01-01

    This document provides the status of the preliminary hazard classification (PHC) process for the Environmental Restoration Contractor (ERC) above ground structures and groundwater and soil remediation activities currently underway for planned for fiscal year (FY) 1997. This classification process is based on current US Department of Energy (DOE), Richland Operations Office (RL) guidance for the classification of facilities and activities containing radionuclide and nonradiological hazardous material inventories. The above ground structures presented in the matrices were drawn from the Bechtel Hanford, Inc. (BHI) Decontamination and Decommissioning (D and D) Project Facility List (DOE 1996), which identifies the facilities in the RL-Environmental Restoration baseline contract in 1997. This document contains the following two appendices: (1) Appendix A, which consists of a matrix identifying PHC documents that have been issued for BHI's above ground structures and groundwater and soil remediation activities underway or planned for FY 1997, and (2) Appendix B, which consists of a matrix showing anticipated PHCs for above ground structures, and groundwater and soil remediation activities underway or planned for FY 1997. Appendix B also shows the schedule for finalization of PHCs for above ground structures with an anticipated classification of Nuclear

  18. Better physical activity classification using smartphone acceleration sensor.

    Science.gov (United States)

    Arif, Muhammad; Bilal, Mohsin; Kattan, Ahmed; Ahamed, S Iqbal

    2014-09-01

    Obesity is becoming one of the serious problems for the health of worldwide population. Social interactions on mobile phones and computers via internet through social e-networks are one of the major causes of lack of physical activities. For the health specialist, it is important to track the record of physical activities of the obese or overweight patients to supervise weight loss control. In this study, acceleration sensor present in the smartphone is used to monitor the physical activity of the user. Physical activities including Walking, Jogging, Sitting, Standing, Walking upstairs and Walking downstairs are classified. Time domain features are extracted from the acceleration data recorded by smartphone during different physical activities. Time and space complexity of the whole framework is done by optimal feature subset selection and pruning of instances. Classification results of six physical activities are reported in this paper. Using simple time domain features, 99 % classification accuracy is achieved. Furthermore, attributes subset selection is used to remove the redundant features and to minimize the time complexity of the algorithm. A subset of 30 features produced more than 98 % classification accuracy for the six physical activities.

  19. The classification of knowledge and expertise in Finnish nuclear power plants

    International Nuclear Information System (INIS)

    Kuronen, T.; Rintala, N.

    2006-01-01

    The difficulties in sharing tacit knowledge may compromise the safe performance of high-reliability organisations. This threat has been recognised in nuclear power plants worldwide, owing to the risk of simultaneous retirements. In this study, the nature of tacit knowledge in Finnish nuclear power plants was examined and the expertise of nuclear workers modelled. The results of this interview study showed that the tacit nuclear knowledge can be classified in two dimensions: technical and contextual. According to this classification, the employees in plants can be categorised in four categories: the experts; the novices; the technical specialists; the context sensitives. (author)

  20. Group-Based Active Learning of Classification Models.

    Science.gov (United States)

    Luo, Zhipeng; Hauskrecht, Milos

    2017-05-01

    Learning of classification models from real-world data often requires additional human expert effort to annotate the data. However, this process can be rather costly and finding ways of reducing the human annotation effort is critical for this task. The objective of this paper is to develop and study new ways of providing human feedback for efficient learning of classification models by labeling groups of examples. Briefly, unlike traditional active learning methods that seek feedback on individual examples, we develop a new group-based active learning framework that solicits label information on groups of multiple examples. In order to describe groups in a user-friendly way, conjunctive patterns are used to compactly represent groups. Our empirical study on 12 UCI data sets demonstrates the advantages and superiority of our approach over both classic instance-based active learning work, as well as existing group-based active-learning methods.

  1. Classification

    DEFF Research Database (Denmark)

    Hjørland, Birger

    2017-01-01

    This article presents and discusses definitions of the term “classification” and the related concepts “Concept/conceptualization,”“categorization,” “ordering,” “taxonomy” and “typology.” It further presents and discusses theories of classification including the influences of Aristotle...... and Wittgenstein. It presents different views on forming classes, including logical division, numerical taxonomy, historical classification, hermeneutical and pragmatic/critical views. Finally, issues related to artificial versus natural classification and taxonomic monism versus taxonomic pluralism are briefly...

  2. IAEA activities on nuclear fuel cycle 1997

    International Nuclear Information System (INIS)

    Oi, N.

    1997-01-01

    The presentation discussing the IAEA activities on nuclear fuel cycle reviews the following issues: organizational charts of IAEA, division of nuclear power and the fuel cycle, nuclear fuel cycle and materials section; 1997 budget estimates; budget trends; the nuclear fuel cycle programme

  3. IAEA activities on nuclear fuel cycle 1997

    Energy Technology Data Exchange (ETDEWEB)

    Oi, N [International Atomic Energy Agency, Vienna (Austria). Nuclear Fuel Cycle and Materials Section

    1997-12-01

    The presentation discussing the IAEA activities on nuclear fuel cycle reviews the following issues: organizational charts of IAEA, division of nuclear power and the fuel cycle, nuclear fuel cycle and materials section; 1997 budget estimates; budget trends; the nuclear fuel cycle programme.

  4. Machine learning for radioxenon event classification for the Comprehensive Nuclear-Test-Ban Treaty

    Energy Technology Data Exchange (ETDEWEB)

    Stocki, Trevor J., E-mail: trevor_stocki@hc-sc.gc.c [Radiation Protection Bureau, 775 Brookfield Road, A.L. 6302D1, Ottawa, ON, K1A 1C1 (Canada); Li, Guichong; Japkowicz, Nathalie [School of Information Technology and Engineering, University of Ottawa, 800 King Edward Avenue, Ottawa, ON, K1N 6N5 (Canada); Ungar, R. Kurt [Radiation Protection Bureau, 775 Brookfield Road, A.L. 6302D1, Ottawa, ON, K1A 1C1 (Canada)

    2010-01-15

    A method of weapon detection for the Comprehensive nuclear-Test-Ban-Treaty (CTBT) consists of monitoring the amount of radioxenon in the atmosphere by measuring and sampling the activity concentration of {sup 131m}Xe, {sup 133}Xe, {sup 133m}Xe, and {sup 135}Xe by radionuclide monitoring. Several explosion samples were simulated based on real data since the measured data of this type is quite rare. These data sets consisted of different circumstances of a nuclear explosion, and are used as training data sets to establish an effective classification model employing state-of-the-art technologies in machine learning. A study was conducted involving classic induction algorithms in machine learning including Naive Bayes, Neural Networks, Decision Trees, k-Nearest Neighbors, and Support Vector Machines, that revealed that they can successfully be used in this practical application. In particular, our studies show that many induction algorithms in machine learning outperform a simple linear discriminator when a signal is found in a high radioxenon background environment.

  5. Machine learning for radioxenon event classification for the Comprehensive Nuclear-Test-Ban Treaty

    International Nuclear Information System (INIS)

    Stocki, Trevor J.; Li, Guichong; Japkowicz, Nathalie; Ungar, R. Kurt

    2010-01-01

    A method of weapon detection for the Comprehensive nuclear-Test-Ban-Treaty (CTBT) consists of monitoring the amount of radioxenon in the atmosphere by measuring and sampling the activity concentration of 131m Xe, 133 Xe, 133m Xe, and 135 Xe by radionuclide monitoring. Several explosion samples were simulated based on real data since the measured data of this type is quite rare. These data sets consisted of different circumstances of a nuclear explosion, and are used as training data sets to establish an effective classification model employing state-of-the-art technologies in machine learning. A study was conducted involving classic induction algorithms in machine learning including Naive Bayes, Neural Networks, Decision Trees, k-Nearest Neighbors, and Support Vector Machines, that revealed that they can successfully be used in this practical application. In particular, our studies show that many induction algorithms in machine learning outperform a simple linear discriminator when a signal is found in a high radioxenon background environment.

  6. Sensor Data Acquisition and Processing Parameters for Human Activity Classification

    Directory of Open Access Journals (Sweden)

    Sebastian D. Bersch

    2014-03-01

    Full Text Available It is known that parameter selection for data sampling frequency and segmentation techniques (including different methods and window sizes has an impact on the classification accuracy. For Ambient Assisted Living (AAL, no clear information to select these parameters exists, hence a wide variety and inconsistency across today’s literature is observed. This paper presents the empirical investigation of different data sampling rates, segmentation techniques and segmentation window sizes and their effect on the accuracy of Activity of Daily Living (ADL event classification and computational load for two different accelerometer sensor datasets. The study is conducted using an ANalysis Of VAriance (ANOVA based on 32 different window sizes, three different segmentation algorithm (with and without overlap, totaling in six different parameters and six sampling frequencies for nine common classification algorithms. The classification accuracy is based on a feature vector consisting of Root Mean Square (RMS, Mean, Signal Magnitude Area (SMA, Signal Vector Magnitude (here SMV, Energy, Entropy, FFTPeak, Standard Deviation (STD. The results are presented alongside recommendations for the parameter selection on the basis of the best performing parameter combinations that are identified by means of the corresponding Pareto curve.

  7. General overview of nuclear activities in Morocco

    International Nuclear Information System (INIS)

    Karouani, K.

    1998-01-01

    Nuclear activities have been introduced in Morocco since the early seventies. These activities concern the utilization of nuclear techniques in medicine, food and agriculture as well as training and research in nuclear physics. In 1984, Morocco decided to undertake a technical and economic feasibility study as well as the site study of the first nuclear power plant. Two years after, he decided to create the ''Centre National de l'Energie des Sciences et des Techniques Nucleaires'' as a technical and research support for the nuclear power program and as a promoting institute of nuclear techniques. Obviously, he also decided to set up a regulatory framework. (author)

  8. Termination of past nuclear activities at the nuclear research institute

    International Nuclear Information System (INIS)

    Janzekovic, H.; Krizman, M.

    2006-01-01

    Many countries, particularly in Europe, started with nuclear programs in the fifties of the last century. As a consequence nuclear research institutes were established, among them also the Institute Jozef Stefan (IJS) in Slovenia. The nuclear activities at the IJS were related to the development of uranium ore processing technology and technologies comprising uranium oxide and hexafluoride. After very intensive period of nuclear activities the decline began step by step due to different reasons. Various approaches of the termination and decommissioning of facilities were used. The inspectors of the Slovenian Nuclear Safety Administration (SNSA), the responsible authority, started intensive activities at the IJS at the end of 2004. All together 22 research laboratories or research units were included in the inspection program and around 50 researchers of the IJS were involved into the inspection procedures. The inspection was very intensive in the laboratories and storages where past nuclear activities took place and were later on abandoned. As a result several contaminated equipments and sites in addition to around 200 unregistered sources were found. The majority of these sources is related to past nuclear activities. The inspection program related to the terminated research activities is still in progress. The IJS immediately started with the remediation activities including the development of methodology related to decontamination of radioactive liquids. The decontamination of two nuclear laboratories and three different storages of radioactive waste at its sites is in progress. Sixty of the above mentioned sources have been already stored in the Central Interim Storage for Radioactive Waste. (author)

  9. Nuclear energy Division - 2011 Activity report

    International Nuclear Information System (INIS)

    2012-01-01

    This document reports the activity of the Nuclear Energy Department (DEN) within the CEA. It evokes its international relationship (participation to international initiatives, cooperation with different countries), describes the scientific activity within the DEN, presents the Advanced Material Program, and the activities undertaken in different fields: future nuclear industrial systems (fourth generation reactors, downstream part of the future fuel cycle, fundamental scientific and technological research), optimization of the present nuclear industrial activity (second and third generation reactors, nuclear security, upstream and downstream part of the present fuel cycle), tools for nuclear development (numerical simulation, Jules Horowitz reactor), cleaning up and nuclear dismantling (dismantling strategy, the Passage project in Grenoble, works in Marcoule, the Aladin project in Fontenay, waste and material flow management, nuclear support installations, transports). It finally addresses the specific activities of the Marcoule, Cadarache and Saclay centres

  10. Classification of radioactive wastes produced by the nuclear industry

    International Nuclear Information System (INIS)

    2013-01-01

    This document first indicates the origins of radioactive wastes (mainly electronuclear industry), and the composition of spent fuel, and that only fission products and minor actinides are considered as radioactive wastes whereas uranium and plutonium can be used as new fuel after recycling. The classification of radioactive wastes is indicated in terms of radioactivity level and radionuclide half-life: high level (0.2 per cent of the total waste volume but 96 per cent of total waste radioactivity), medium level long life (3 per cent of volume, 4 per cent of radioactivity), low level long life (7 per cent of volume, 0.1 per cent of radioactivity), low and medium level and short life (63 per cent of volume and 0.02 per cent of radioactivity), very low level (27 per cent of volume and less than 0.01 per cent of radioactivity). An overview of radioactive waste processing and storage in France is presented for each category. Current and predicted volumes are indicated for each category. The main challenges are briefly addressed: spent fuel recycling, waste valorisation by fourth-generation reactors. Processing locations in France and in the World are indicated. Some key figures are provided: 2 kg of radioactive waste are produced per inhabitant and per year, and waste management costs represent 5 per cent of the total cost of produced electricity

  11. Classification of tubulo-papillary renal cortical tumours using estimates of nuclear volume

    DEFF Research Database (Denmark)

    Brooks, B; Sørensen, Flemming Brandt; Olsen, S

    1993-01-01

    The classification of renal cortical tumours is problematic, with no clear division of benign from malignant tumours. Unbiased stereological estimates of volume-weighted nuclear volume (nuclear vv) were obtained by point sampling of nuclear intercepts in a retrospective study of 36 variably sized...... = 241 microns 3) and 15 tumours classified as renal cell carcinomas with diameters > 3 cm, or aggressive histological pattern (average nuclear vv = 229 microns 3) (2p = 0.68). In this subtype of renal cortical tumours, estimates of nuclear vv do not support the historical convention of using a 3 cm...... tumour diameter as the dividing line between adenomas and carcinomas, but support the theory of a single group of tumours. As most of the truly incidental renal cortical tumours are less than 1 cm in diameter, this limit could be considered. Such small benign cortical nodules have never been reported...

  12. Nuclear

    International Nuclear Information System (INIS)

    2014-01-01

    This document proposes a presentation and discussion of the main notions, issues, principles, or characteristics related to nuclear energy: radioactivity (presence in the environment, explanation, measurement, periods and activities, low doses, applications), fuel cycle (front end, mining and ore concentration, refining and conversion, fuel fabrication, in the reactor, back end with reprocessing and recycling, transport), the future of the thorium-based fuel cycle (motivations, benefits and drawbacks), nuclear reactors (principles of fission reactors, reactor types, PWR reactors, BWR, heavy-water reactor, high temperature reactor of HTR, future reactors), nuclear wastes (classification, packaging and storage, legal aspects, vitrification, choice of a deep storage option, quantities and costs, foreign practices), radioactive releases of nuclear installations (main released radio-elements, radioactive releases by nuclear reactors and by La Hague plant, gaseous and liquid effluents, impact of releases, regulation), the OSPAR Convention, management and safety of nuclear activities (from control to quality insurance, to quality management and to sustainable development), national safety bodies (mission, means, organisation and activities of ASN, IRSN, HCTISN), international bodies, nuclear and medicine (applications of radioactivity, medical imagery, radiotherapy, doses in nuclear medicine, implementation, the accident in Epinal), nuclear and R and D (past R and D programmes and expenses, main actors in France and present funding, main R and D axis, international cooperation)

  13. The development of rock suitability classification strategies in the Finnish spent nuclear fuel disposal program

    Energy Technology Data Exchange (ETDEWEB)

    Hellae, Pirjo; Hagros, Annika [Saanio and Riekkola Oy (Finland); Aaltonen, Ismo; Kosunen, Paula; Mattila, Jussi [Posiva Oy (Finland)

    2015-07-01

    This paper describes the development of the rock suitability classification strategies applied to locate the spent fuel repository in crystalline rock in Finland. Development of the classification procedure is motivated not only by the regulatory requirements, but also by the need to more closely integrate site characterization, repository design and long-term safety assessment. The classification procedure has been developed along with the increasing level of detail of the available site data and knowledge on the performance of the engineered barrier system (EBS). The classification system has also been adapted to the changes in the regulations. The present form of the classification system and experiences from testing the system at the site are described. Demonstration activities have shown that the criteria and the stepwise research, construction and decision making protocol can be applied successfully.

  14. The development of rock suitability classification strategies in the Finnish spent nuclear fuel disposal program

    International Nuclear Information System (INIS)

    Hellae, Pirjo; Hagros, Annika; Aaltonen, Ismo; Kosunen, Paula; Mattila, Jussi

    2015-01-01

    This paper describes the development of the rock suitability classification strategies applied to locate the spent fuel repository in crystalline rock in Finland. Development of the classification procedure is motivated not only by the regulatory requirements, but also by the need to more closely integrate site characterization, repository design and long-term safety assessment. The classification procedure has been developed along with the increasing level of detail of the available site data and knowledge on the performance of the engineered barrier system (EBS). The classification system has also been adapted to the changes in the regulations. The present form of the classification system and experiences from testing the system at the site are described. Demonstration activities have shown that the criteria and the stepwise research, construction and decision making protocol can be applied successfully.

  15. Nuclear power development and nuclear data activities in Malaysia

    Energy Technology Data Exchange (ETDEWEB)

    Gui Ah Auu [Malaysian Institute for Nuclear Technology Research, Ministry of Science, Technology and the Environment, Selangor (Malaysia)

    1999-03-01

    In this paper, research activities on nuclear power requirement carried out jointly by MINT and other organizations are described. Also discussed are activities on neutronics such as TRIGA reactor fuel management, storage pool criticality, and reactor fuel transfer cask calculations. In addition, recent work on radiation transport activities in MINT such as skyshine and photon phantom dose calculations using the MCNP and MRIPP computer codes are presented. Finally, nuclear data measurement works by researchers in Malaysian universities are described. (author)

  16. Nuclear power development and nuclear data activities in Malaysia

    International Nuclear Information System (INIS)

    Gui Ah Auu

    1999-01-01

    In this paper, research activities on nuclear power requirement carried out jointly by MINT and other organizations are described. Also discussed are activities on neutronics such as TRIGA reactor fuel management, storage pool criticality, and reactor fuel transfer cask calculations. In addition, recent work on radiation transport activities in MINT such as skyshine and photon phantom dose calculations using the MCNP and MRIPP computer codes are presented. Finally, nuclear data measurement works by researchers in Malaysian universities are described. (author)

  17. Annual report on nuclear physics activities

    International Nuclear Information System (INIS)

    Heeringa, W.; Voss, F.

    1988-02-01

    This report surveys the activities in basic research from July 1, 1986 to June 30, 1987 at the Institute for Nuclear Physics (IK) of the Nuclear Research Center Karlsruhe. The research program of this institute comprises laser spectroscopy, nuclear reactions with light ions, neutron physics, neutrino physics and high energy physics, as well as detector technology. (orig.) [de

  18. Activities planning of Nuclear Data Center - 1980

    International Nuclear Information System (INIS)

    Nair, R.P.K.

    1980-01-01

    The main process systems of nuclear data files and the actual nuclear data processing implantation in the Instituto de Estudos Avancados, are presented. The research activities of Nuclear Data Center during 1980 in relation to the implantation of file process systems for multigroup cross sections, and the calculations of integral reactor parameters, are described. (M.C.K.) [pt

  19. Active relearning for robust supervised classification of pulmonary emphysema

    Science.gov (United States)

    Raghunath, Sushravya; Rajagopalan, Srinivasan; Karwoski, Ronald A.; Bartholmai, Brian J.; Robb, Richard A.

    2012-03-01

    Radiologists are adept at recognizing the appearance of lung parenchymal abnormalities in CT scans. However, the inconsistent differential diagnosis, due to subjective aggregation, mandates supervised classification. Towards optimizing Emphysema classification, we introduce a physician-in-the-loop feedback approach in order to minimize uncertainty in the selected training samples. Using multi-view inductive learning with the training samples, an ensemble of Support Vector Machine (SVM) models, each based on a specific pair-wise dissimilarity metric, was constructed in less than six seconds. In the active relearning phase, the ensemble-expert label conflicts were resolved by an expert. This just-in-time feedback with unoptimized SVMs yielded 15% increase in classification accuracy and 25% reduction in the number of support vectors. The generality of relearning was assessed in the optimized parameter space of six different classifiers across seven dissimilarity metrics. The resultant average accuracy improved to 21%. The co-operative feedback method proposed here could enhance both diagnostic and staging throughput efficiency in chest radiology practice.

  20. Activity transport in nuclear reactors

    International Nuclear Information System (INIS)

    Narasimhan, S.V.

    2000-01-01

    The chemistry of the primary coolant is such that the general material loss is immeasurably low. However, the generation of radioactive corrosion products in the coolant, their transportation and distribution to different out of core surfaces occur irrevocably through the life cycle of the reactor. This phenomena leading to the build up of radiation field, which is unique to the nuclear reactor systems, is the only major problem of any significance. Minimization of this phenomenon can be done by many ways. The processes involved in the mechanism of activity transport are quite complex and are not at all thoroughly understood. The codes that have been developed so far use many empirical coefficients for some of the rate processes, which are either partially justified by simulated experimental studies or supported theoretically. In a multi-metal system like that of the reactor, the corrosion rates or release rates need not be similar especially in reactors like PHWRs. The mechanisms involved in the formation of protective oxide coating are quite complex to model in a simplified manner. The paper brings out some these features involved in the activity transport modeling and analyses the need for extensive field related experimental work to substantiate the model. (author)

  1. Interim report to the Nuclear Regulatory Commission on radioactive waste classification

    International Nuclear Information System (INIS)

    King, W.C.; Cohen, J.J.

    1977-01-01

    The Lawrence Livermore Laboratory assisted the Nuclear Regulatory Commission in the development of a radioactive waste classification system that will satisfy technical, environmental, and societal concerns. This is an interim report to the NRC on work accomplished to date. It describes a proposed waste-classification system that is based on the final disposition of waste material. The system consists of three classes of radioactive waste. The classification of any radioactive waste will depend primarily on its hazard potential. Other characteristics such as longevity (half-size) will be considered also. The levels of hazard that differentiate the three classes of radioactive waste will be determined by ongoing work. This report describes other work to be completed before a suitable radioactive waste-classificaion system is established

  2. On the classification of structures, systems and components of nuclear research and test reactors

    International Nuclear Information System (INIS)

    Mattar Neto, Miguel

    2009-01-01

    The classification of structures, systems and components of nuclear reactors is a relevant issue related to their design because it is directly associated with their safety functions. There is an important statement regarding quality standards and records that says Structures, systems, and components important to safety shall be designed, fabricated, erected, and tested to quality standards commensurate with the importance of the safety functions to be performed. The definition of the codes, standards and technical requirements applied to the nuclear reactor design, fabrication, inspection and tests may be seen as the main result from this statement. There are well established guides to classify structures, systems and components for nuclear power reactors such as the Pressurized Water Reactors but one can not say the same for nuclear research and test reactors. The nuclear reactors safety functions are those required to the safe reactor operation, the safe reactor shutdown and continued safe conditions, the response to anticipated transients, the response to potential accidents and the control of radioactive material. So, it is proposed in this paper an approach to develop the classification of structures, systems and components of these reactors based on their intended safety functions in order to define the applicable set of codes, standards and technical requirements. (author)

  3. Applicability of compton imaging in nuclear decommissioning activities

    International Nuclear Information System (INIS)

    Ljubenov, V.Lj.; Marinkovic, P.M.

    2002-01-01

    During the decommissioning of nuclear facilities significant part of the activities is related to the radiological characterization, waste classification and management. For these purposes a relatively new imaging technique, based on information from the gamma radiation that undergoes Compton scattering, is applicable. Compton imaging systems have a number of advantages for nuclear waste characterization, such as identifying hot spots in mixed waste in order to reduce the volume of high-level waste requiring extensive treatment or long-term storage, imaging large contaminated areas and objects etc. Compton imaging also has potential applications for monitoring of production, transport and storage of nuclear materials and components. This paper discusses some system design requirements and performance specifications for these applications. The advantages of Compton imaging are compared to competing imaging techniques. (author)

  4. Nuclear desalination activities in India

    International Nuclear Information System (INIS)

    Bhattacharjee, B.

    1999-01-01

    The main emphasis of this article is on utilization of nuclear energy for desalination. Nuclear desalination is cheaper, eco-friendly and assists in sustainable growth of total energy generation programme in a country. PHWR type reactors are the main stay of nuclear energy programme in India. Nuclear waste heat for desalination is available in the moderator system of the 220 MW(e) and 500 MW(e) PHWRs. The low temperature evaporation technology (LET) for producing pure water from sea water is also discussed

  5. Utility of multispectral imaging for nuclear classification of routine clinical histopathology imagery

    Directory of Open Access Journals (Sweden)

    Harvey Neal R

    2007-07-01

    Full Text Available Abstract Background We present an analysis of the utility of multispectral versus standard RGB imagery for routine H&E stained histopathology images, in particular for pixel-level classification of nuclei. Our multispectral imagery has 29 spectral bands, spaced 10 nm within the visual range of 420–700 nm. It has been hypothesized that the additional spectral bands contain further information useful for classification as compared to the 3 standard bands of RGB imagery. We present analyses of our data designed to test this hypothesis. Results For classification using all available image bands, we find the best performance (equal tradeoff between detection rate and false alarm rate is obtained from either the multispectral or our "ccd" RGB imagery, with an overall increase in performance of 0.79% compared to the next best performing image type. For classification using single image bands, the single best multispectral band (in the red portion of the spectrum gave a performance increase of 0.57%, compared to performance of the single best RGB band (red. Additionally, red bands had the highest coefficients/preference in our classifiers. Principal components analysis of the multispectral imagery indicates only two significant image bands, which is not surprising given the presence of two stains. Conclusion Our results indicate that multispectral imagery for routine H&E stained histopathology provides minimal additional spectral information for a pixel-level nuclear classification task than would standard RGB imagery.

  6. Nuclear Energy Division. 2009 Activity report

    International Nuclear Information System (INIS)

    2009-01-01

    After a presentation of the future investment programme of the nuclear energy department at the French national Nuclear Research Center (CEA), this report proposes a description of tomorrow's industrial nuclear systems (back-end of future fuel cycle, fourth generation systems, basic scientific and technological research), describes how current nuclear industrial systems are optimized (front-end and back-end of fuel cycle, second and third generation reactors). It presents the main tools for nuclear development: simulation programme, the Jules Horowitz reactor project, maintenance of specific facilities, research valorisation. It reports the activities related to the clean-up and dismantling in different nuclear sites, presents the activities of CEA's nuclear research centres (Saclay, Cadarache, Marcoule), briefly presents the transverse material programme, recalls some events, and gives some key figures

  7. The juridical issues of nuclear activities

    International Nuclear Information System (INIS)

    Guillaume, M.; Kerever, A.; Pasquier, J.L.; Brillanceau, F.; Besson, J.P.; Chaumette, L.; Niel, J.C.; Reculeau, Y.; Treflez, M.; Pezennec, D.; Cochaud, J.F.; Phan Van, L.; Cormis, F. de; Galmot, Y.; Saint-Raymond, P.; Blanchard, P.; Robert, J.H.

    1997-01-01

    This issue is dedicated to the juridical aspects of civil nuclear activities. It comprises 3 parts and 16 papers. Radiation protection law is dealt with in part 1: prevention of risks due to ionizing radiations in occupational environment; sources and men; the regulation of radioactive materials transport; the regulation of the rejection of gaseous and liquid radioactive effluents. Part 2 tackles the question of checking the pacific uses of nuclear energy, that is the juridical consequences of the non-proliferation and physical protection policies are reviewed: international efforts that aim to limit the military uses of nuclear energy; the juridical and practical aspects of non-proliferation rules and international controls; the national control of radioactive materials. The juridical framing of nuclear activities, nuclear civil liability and infraction of the law are gathered in part 3: the CIINB and its contribution to the safety of nuclear installations; the mining law; the control of nuclear installations safety; the influence of the realization of the nuclear program on the evolution of the French law; the intervention of the administrative judge in nuclear affairs; the protection of population against nuclear risk - statement of existing provisions and new trends; the special regime of the civil nuclear responsibility - at the time of change; the penal infractions of the nuclear law. (J.S.)

  8. Application of nuclear activation analysis

    International Nuclear Information System (INIS)

    Mamonov, E.I.; Khlystova, A.F.

    1979-01-01

    Consideration is given to the applications of nuclear-activation analysis (NAA) as discussed at the International Conference of 1977. One of the new results in the present-day NAA practices is the growing number of elements detected in samples without using a destructive radiochemical separation. An essential feature in this context is the development of the system automation of control and information NAA operations through the use computers. In biological medicine a multicomponent NAA is employed to determine the concentration of elements in various human organs and objects, in metabolic studies and for diagnostic purposes. In agriculture NAA finds applications in the evaluation of grain protein, analysis of element feed composition, soil and fertilizers. The application of this method to the environmental monitoring is considered with particular reference to the element analysis of water (especially drinking water), air, plant residues. Data are presented for the use of NAA in metallurgy, geology, archaeology and criminal law. Tables are provided to illustrate the uses of NAA in various fields

  9. Argentine nuclear energy standardization activities

    International Nuclear Information System (INIS)

    Boero, Norma; Corcuera, Roberto; Palacios, Tulio A.; Hey, Alfredo M.; Berte, G.; Trama, L.

    2004-01-01

    The International Organization for Standardization (ISO) has more than 200 Technical Committees that develop technical standards. During April 2004 took place in Buenos Aires the 14th Plenary of the ISO/TC 85 Nuclear Energy Committee. During this Plenary issues as Nuclear Terminology, Radiation Protection, Nuclear Fuels, Nuclear Reactors and Irradiation Dosimetry was dealt with. 105 International delegates and 45 National delegates (belonging to CNEA, ARN, NASA, INVAP, CONUAR, IONICS and other organizations) attended the meetings. During this meeting ISO/TC 85 changed its scope; the new scope of the Committee is 'Standardization in the fields of peaceful applications of nuclear energy and of the protection of individuals against all sources of ionizing radiations'. This work summarizes the most important advances and resolutions about the development of standards taken during this meeting as well as the main conclusions. (author) [es

  10. Classification of types of stuttering symptoms based on brain activity.

    Directory of Open Access Journals (Sweden)

    Jing Jiang

    Full Text Available Among the non-fluencies seen in speech, some are more typical (MT of stuttering speakers, whereas others are less typical (LT and are common to both stuttering and fluent speakers. No neuroimaging work has evaluated the neural basis for grouping these symptom types. Another long-debated issue is which type (LT, MT whole-word repetitions (WWR should be placed in. In this study, a sentence completion task was performed by twenty stuttering patients who were scanned using an event-related design. This task elicited stuttering in these patients. Each stuttered trial from each patient was sorted into the MT or LT types with WWR put aside. Pattern classification was employed to train a patient-specific single trial model to automatically classify each trial as MT or LT using the corresponding fMRI data. This model was then validated by using test data that were independent of the training data. In a subsequent analysis, the classification model, just established, was used to determine which type the WWR should be placed in. The results showed that the LT and the MT could be separated with high accuracy based on their brain activity. The brain regions that made most contribution to the separation of the types were: the left inferior frontal cortex and bilateral precuneus, both of which showed higher activity in the MT than in the LT; and the left putamen and right cerebellum which showed the opposite activity pattern. The results also showed that the brain activity for WWR was more similar to that of the LT and fluent speech than to that of the MT. These findings provide a neurological basis for separating the MT and the LT types, and support the widely-used MT/LT symptom grouping scheme. In addition, WWR play a similar role as the LT, and thus should be placed in the LT type.

  11. Classification of Types of Stuttering Symptoms Based on Brain Activity

    Science.gov (United States)

    Jiang, Jing; Lu, Chunming; Peng, Danling; Zhu, Chaozhe; Howell, Peter

    2012-01-01

    Among the non-fluencies seen in speech, some are more typical (MT) of stuttering speakers, whereas others are less typical (LT) and are common to both stuttering and fluent speakers. No neuroimaging work has evaluated the neural basis for grouping these symptom types. Another long-debated issue is which type (LT, MT) whole-word repetitions (WWR) should be placed in. In this study, a sentence completion task was performed by twenty stuttering patients who were scanned using an event-related design. This task elicited stuttering in these patients. Each stuttered trial from each patient was sorted into the MT or LT types with WWR put aside. Pattern classification was employed to train a patient-specific single trial model to automatically classify each trial as MT or LT using the corresponding fMRI data. This model was then validated by using test data that were independent of the training data. In a subsequent analysis, the classification model, just established, was used to determine which type the WWR should be placed in. The results showed that the LT and the MT could be separated with high accuracy based on their brain activity. The brain regions that made most contribution to the separation of the types were: the left inferior frontal cortex and bilateral precuneus, both of which showed higher activity in the MT than in the LT; and the left putamen and right cerebellum which showed the opposite activity pattern. The results also showed that the brain activity for WWR was more similar to that of the LT and fluent speech than to that of the MT. These findings provide a neurological basis for separating the MT and the LT types, and support the widely-used MT/LT symptom grouping scheme. In addition, WWR play a similar role as the LT, and thus should be placed in the LT type. PMID:22761887

  12. Nuclear information: An overview of IAEA's activities

    International Nuclear Information System (INIS)

    Marchesi, I.H.; Konstantinov, L.V.

    1986-01-01

    As stated in this overview of IAEA nuclear information activities the Agency's role in information services is rapidly evolving and multifaceted. The Agency maintains more than 200 computerized files of information. Some 60 of these are part of systems directly related to nuclear activities. Some of these are briefly profiled in this overview such as INIS, the IAEA Nuclear Data Programme, the IAEA Incident Reporting System, the IAEA Energy and Economic Databank, the IAEA Power Reactor Information System, the Nuclear Fuel Cycle Information System, and the International Uranium Geology Information System. Future directions are pointed out. Different ways to upgrade information systems are listed

  13. Host Rock Classification (HRC) system for nuclear waste disposal in crystalline bedrock

    International Nuclear Information System (INIS)

    Hagros, A.

    2006-01-01

    A new rock mass classification scheme, the Host Rock Classification system (HRC-system) has been developed for evaluating the suitability of volumes of rock mass for the disposal of high-level nuclear waste in Precambrian crystalline bedrock. To support the development of the system, the requirements of host rock to be used for disposal have been studied in detail and the significance of the various rock mass properties have been examined. The HRC-system considers both the long-term safety of the repository and the constructability in the rock mass. The system is specific to the KBS-3V disposal concept and can be used only at sites that have been evaluated to be suitable at the site scale. By using the HRC-system, it is possible to identify potentially suitable volumes within the site at several different scales (repository, tunnel and canister scales). The selection of the classification parameters to be included in the HRC-system is based on an extensive study on the rock mass properties and their various influences on the long-term safety, the constructability and the layout and location of the repository. The parameters proposed for the classification at the repository scale include fracture zones, strength/stress ratio, hydraulic conductivity and the Groundwater Chemistry Index. The parameters proposed for the classification at the tunnel scale include hydraulic conductivity, Q' and fracture zones and the parameters proposed for the classification at the canister scale include hydraulic conductivity, Q', fracture zones, fracture width (aperture + filling) and fracture trace length. The parameter values will be used to determine the suitability classes for the volumes of rock to be classified. The HRC-system includes four suitability classes at the repository and tunnel scales and three suitability classes at the canister scale and the classification process is linked to several important decisions regarding the location and acceptability of many components of

  14. Importance of industrial classification of economic activities for teaching merchandising

    Directory of Open Access Journals (Sweden)

    Radmila Presová

    2005-01-01

    Full Text Available Business subjects in any national economy perform activities results of which are products, services or goods directly distributed to the market network. Volume of products differs according to the level of operational facilities, number of producers and the level of their facilities. Based on the development of information technology, there arise new specialization fields and new ranges of goods. Classification criteria are developed to qualify level of production and for enlistment of a firm to a particular branch. Currently the criteria of production classification are being developed. The understanding of these principles is particularly important on the bachelor level of the specialization Trade Management, where students are getting acquainted with the characteristics of goods, creative and degradation influences on utility, etc. Students are encouraged to understand how the quality and criteria mentioned above influence market prices. Teaching emphasis is put on the complexity of food assortment and the knowledge of Czech and EU legalislation relating to hygienic aspects and health quality of production, processing, and selling of food products. This complex procedure enables to obtain an overall survey of the origin of particular products, their catering, and sales. This means that the students obtain an idea about the complexity of relations existing among the origin of products, their sales and their consumption.

  15. Nuclear data: IAEA activity overview

    International Nuclear Information System (INIS)

    Marchezi, A.Kh.; Konstantinov, L.V.

    1986-01-01

    The IAEA data banks, aimed at expanding information exchange and maintaining science and technology development in the whole world are briefly described. The following items are are considered: INIS; power reactor information system (PRIS); NPP incident information system (IRS); research reactor data base (RRDB); nuclear fuel cycle information system (NFCIS); nuclear data system (NDS); International uranium geology information system (INTURGEO); power engineering and economy data bank (PEEDB); radioactive material shipment data base; isotopic hydrology data base

  16. Recent Activities on Global Nuclear Safety Regime

    International Nuclear Information System (INIS)

    Cho, Kun-Woo; Park, Jeong-Seop; Kim, Do-Hyoung

    2006-01-01

    Recently, rapid progress on the globalization of the nuclear safety issues is being made in IAEA (International Atomic Energy Agency) and its member states. With the globalization, the need for international cooperation among international bodies and member states continues to grow for resolving these universal nuclear safety issues. Furthermore, the importance of strengthening the global nuclear safety regime is emphasized through various means, such as efforts in application of IAEA safety standards to all nuclear installations in the world and in strengthening the code of conduct and the convention on nuclear safety. In this regards, it is important for us to keep up with the activities related with the global nuclear safety regime as an IAEA member state and a leading country in nuclear safety regulation

  17. Activities of the Nuclear Data Center

    International Nuclear Information System (INIS)

    Fuketa, Toyojiro

    1978-01-01

    The present status of international cooperation system for the nuclear data activities is introductorily explained in outline. The Nuclear Data Center of Japan Atomic Energy Research Institute is presently the only public data center in the field of nuclear data in Japan, and it has the following scope of the works: evaluation of the nuclear data, compilation of the Japanese Evaluated Nuclear Data Library (JENDL), application of the data including benchmark tests, development of the data storage, retrieval and processing systems, data service to the users, secretariat of the Japanese Nuclear Data Committee, and international cooperation. An introduction to the use of nuclear data is given with a brief information on the availability of the data and with some matters that demand special attention. (auth.)

  18. Activities of IPEN Nuclear Metrology Laboratory

    International Nuclear Information System (INIS)

    Dias, M.S.; Koskinas, M.F.; Pocobi, E.; Silva, C.A.M.; Machado, R.R.

    1987-01-01

    The activities of IPEN Nuclear Metrology Laboratory, which the principal objective is radionuclides activities determination for supplying sources and standard radioactive solutions in activity are presented. The systems installed, the activity bands and some of standards radionuclides are shown. (C.G.C.) [pt

  19. Development of a methodology for safety classification on a non-reactor nuclear facility illustrated using an specific example

    International Nuclear Information System (INIS)

    Scheuermann, F.; Lehradt, O.; Traichel, A.

    2015-01-01

    To realize the safety of personnel and environment systems and components of nuclear facilities are classified according to their potential danger into safety classes. Based on this classification different demands on the manufacturing quality result. The objective of this work is to present the standardized method developed by NUKEM Technologies Engineering Services for the categorization into the safety classes restricted to Non-reactor nuclear facilities (NRNF). Exemplary the methodology is used on the complex Russian normative system (four safety classes). For NRNF only the lower two safety classes are relevant. The classification into the lowest safety class 4 is accordingly if the maximum resulting dose following from clean-up actions in case of incidents/accidents remains below 20 mSv and the volume activity restrictions of set in NRB-99/2009 are met. The methodology is illustrated using an example. In short the methodology consists of: - Determination of the working time to remove consequences of incidents, - Calculation of the dose resulting from direct radiation and due to inhalation during these works. The application of this methodology avoids over-conservative approaches. As a result some previously higher classified equipment can be classified into the lower safety class.

  20. Defining the Strategy of Nuclear Activity

    International Nuclear Information System (INIS)

    Racana, R.

    2006-01-01

    This article presents nuclear activity as defined within the field of the nuclear industry, which is studied from its capacity to generate electric power to its application in industry and medicine as well as a source for weapons of mass destruction. These fields of analysis introduce some problems that the nuclear activity itself must know how to confront employing action strategies aimed at becoming an activity to be kept in mind when making use of the benefits that its peaceful use contributes to human life. (Author)

  1. Annual report on nuclear physics activities

    International Nuclear Information System (INIS)

    Borie, E.; Doll, P.; Rebel, H.

    1982-11-01

    This report surveys the activities in fundamental research from July 1, 1981 to June 30, 1982 at the three institutes of the KfK which are concerned with nuclear physics. The research program comprises laser spectroscopy, nuclear reactions with light ions, neutron physics, neutrino physics and physics at medium and higher energies. (orig.) [de

  2. Annual report on nuclear physics activities

    International Nuclear Information System (INIS)

    Beck, R.; Bueche, G.; Fluegge, G.

    1982-02-01

    This report surveys the activities in fundamental research from July 1, 1980 to June 30, 1981 at the three institutes of the KfK which are concerned with nuclear physics. The research program comprises laser spectroscopy, nuclear reactions with light ions and physics at medium and higher energies. (orig.) [de

  3. IAEA activities on nuclear fuel

    International Nuclear Information System (INIS)

    Basak, U.

    2011-01-01

    In this paper a brief description and the main objectives of IAEA Programme B on Nuclear fuel cycle are given. The following Coordinated Research Projects: 1) FUel performance at high burn-up and in ageing plant by management and optimisation of WAter Chemistry Technologies (FUWAC ); 2) Near Term and Promising Long Term Options for Deployment of Thorium Based Nuclear Energy; 3) Fuel Modelling (FUMEX-III) are shortly described. The data collected by the IAEA Expert Group of Fuel Failures in Water Cooled Reactors including information about fuel failure cause for PWR (1994-2006) and failure mechanisms for BWR fuel (1994-2006) are shown. The just published Fuel Failure Handbook as well as preparation of a Monograph on Zirconium including an overview of Zirconium for nuclear applications are presented. The current projects in Sub-programme B2 - Power Reactor Fuel Engineering are also listed

  4. A 'Swinging Cradle' model for in vitro classification of different types of response elements of a nuclear receptor

    International Nuclear Information System (INIS)

    Malo, Madhu S.; Pushpakaran, Premraj; Hodin, Richard A.

    2005-01-01

    Nuclear receptors are hormone-activated transcription factors that bind to specific target sequences termed hormone-response element (HRE). A HRE usually consists of two half-sites (5'-AGGTCA-3' consensus sequence) arranged as a direct, everted or inverted repeat with variable spacer region. Assignment of a HRE as a direct, everted or inverted repeat is based on its homology to the consensus half-site, but minor variations can make such an assignment confusing. We hypothesize a 'Swinging Cradle' model for HRE classification, whereby the core HRE functions as the 'sitting platform' for the NR, and the extra nucleotides at either end act as the 'sling' of the Cradle. We show that in vitro binding of the thyroid hormone receptor and 9-cis retinoic acid receptor heterodimer to an everted repeat TRE follows the 'Swinging Cradle' model, whereas the other TREs do not. We also show that among these TREs, the everted repeat mediates the highest biological activity

  5. Study on control method of the actuators accepting commands from different classifications in nuclear power plant

    International Nuclear Information System (INIS)

    Tang Lixue; Zhang Nan; Fan Jin; Li Liang

    2015-01-01

    The distributed control system has become the main control system for the nuclear power plant, consisting of 1E and non-1E parts. Because the safety actuators accept commands from different safety classifications, this is a difficulty of controlling those actuators in nuclear power plant. This article discusses about the control method for safety actuators accepting commands from different classifications. Firstly, one control method adopted in new nuclear power projects is introduced. Then based on this, an optimized method is raised. The new method mainly concludes two points than the adopted method: 1. The concept 'local control mode' is introduced into the signal priority logic modules, and the priority logic module turns into local mode for the non-1E control system once it accepts safety signal; 2. The 'remote control mode' is added into the module of the safety actuator in the non-1E control system, and this can make the non-1E control system abandon controlling the safety actuator when the relevant priority logic module accept the safety signal. Based on verifying the correctness of modified scheme, comparisons between the fore-and-aft schemes are provided to summary the merits of the optimized method. It is concluded that optimized scheme is better in the aspects of reliability, safety and economy. (authors)

  6. CEA nuclear energy Directorate - Activity report 2012

    International Nuclear Information System (INIS)

    2013-01-01

    After an overview of the activities of the Directorate at the international level, of its scientific activities, and of the consideration given to quality, and a presentation of the transverse program on advanced materials, this report proposes presentations of activities in different domains: future nuclear industrial systems (reactors of 4. generation, back-end of the future cycle, sustainable management of nuclear materials, fundamental scientific and technological research), optimization of the present industrial nuclear activity (reactors of 2. and 3. generation, front-end and back-end of the fuel cycle), the main tools for nuclear development (numerical simulation, the Jules Horowitz reactor), valorisation, economic support of Haute-Marne and Meuse territories (the Syndiese project), nuclear dismantling and decontamination (dismantling projects, projects and works in Fontenay-aux-Roses, Grenoble and Saclay, waste and material flow management, nuclear service facilities, transports). It also presents the activities of some specific CEA centres like Marcoule (R and D in fuel cycle), Cadarache (future energies) and Saclay (nuclear sciences and simulation of reactors and fuel cycle)

  7. Future financial liabilities of nuclear activities

    International Nuclear Information System (INIS)

    1996-01-01

    This report deals with future financial liabilities arising from nuclear activities, in particular electricity generation. Future financial liabilities are defined as costs which an organisation or company is expected to meet beyond some five years as a consequence of its current and past activities. The study provides a comprehensive picture on policies for recognizing and funding future financial liabilities arising from nuclear activities and their implementation schemes in Nea Member countries. Mechanisms for reporting and funding future financial liabilities are described, analysed and compared. The report offers some findings, conclusions and recommendations for consideration by Member countries. The nuclear activities considered in the report include nuclear research and development, nuclear industry sectors such as uranium mining and milling, conversion and enrichment, nuclear fuel fabrication, nuclear power plant operation and maintenance, and radioisotopes production. Future financial liabilities arising from these activities cover management and disposal of radioactive wastes, reprocessing of spent fuels when applicable and decommissioning of facilities at the end of their life time. 12 refs., 14 figs., 16 tabs

  8. Nuclear activities and the Pacific islanders

    International Nuclear Information System (INIS)

    Dyke, J. Van; Smith, K.R.; Siwatibau, S.

    1984-01-01

    Although to outsiders the Pacific islands may seem far removed from the center of activities and controversies related to nuclear energy, this area has had more direct and negative experiences with nuclear issues than any other area in the world. These experiences have led to a deep-rooted skepticism of all nuclear activities in which distinctions between civilian and military activities, weapons and power, and low-and high-level waste bear little relation to the important Pacific concerns. Antinuclear sentiments are intimately linked to anticolonialism, growing regionalism and emerging cultural pride. Opposition and concern have been expressed in a number of international, regional, national and nongovernmental forums. In this climate, arguments about the relative safety of various waste disposal operations and other nuclear activities are not likely to be meaningful. (author)

  9. Direction of Nuclear Energy. Activity report 2010

    International Nuclear Information System (INIS)

    2011-11-01

    This report proposes an overview of the research activities performed by the French DEN (Direction de l'Energie Nucleaire, Direction of Nuclear Energy) within the CEA. These activities address the future nuclear industrial systems (4. generation reactors, back-end of the future fuel cycle, basic scientific and technological research), the optimization of the industrial nuclear power (fuel cycle front end, second and third generation reactors, back-end of the present fuel cycle), major tools for the development of nuclear energy (simulation tools, Jules Horowitz reactor, value creation), clean up and dismantling of nuclear facilities (present status, the Passage project in Grenoble, the Aladin project in Fontenay-aux-Roses, projects at Marcoule, flow management of radioactive wastes, materials and disused fuels, transport). Three research centres are presented: Marcoule, Cadarache and Saclay

  10. Ignition properties of nuclear grade activated carbons

    International Nuclear Information System (INIS)

    Freeman, W.P.; Hunt, J.R.; Kovach, J.L.

    1983-01-01

    The ignition property of new activated carbons used in air cleaning systems of nuclear facilities has been evaluated in the past, however very little information has been generated on the behavior of aged, weathered carbons which have been exposed to normal nuclear facility environment. Additionally the standard procedure for evaluation of ignition temperature of carbon is performed under very different conditions than those used in the design of nuclear air cleaning systems. Data were generated evaluating the ageing of activated carbons and comparing their CH 3 131 I removal histories to their ignition temperatures. A series of tests were performed on samples from one nuclear power reactor versus use time, a second series evaluated samples from several plants showing the variability of atmospheric effects. The ignition temperatures were evaluated simulating the conditions existing in nuclear air cleaning systems, such as velocity, bed depth, etc., to eliminate potential confusion resulting from artifically set current standard conditions

  11. Risk classification for nuclear facilities in connection with the illegal use of nuclear materials

    International Nuclear Information System (INIS)

    Bahm, W.; Naegele, G.; Sellinschegg, D.

    1976-01-01

    It is shown, and illustrated by an example, that specific conditions at a nuclear facility to a large extent determine the probability of a successful illegal attack against that facility. Therefore, a categorization of nuclear materials according to the associated hazards alone, as practised currently, does not appear to be sufficient for the establishment of a balanced national physical protection system. In this paper a possible way of categorizing nuclear facilities according to the associated risks, determined as objectively as possible, is discussed. It is felt that initially the analysis should be restricted to the determination of the conditional risks, associated with illegal acquisition and use of radioactive materials by a postulated hostile or similar group. (author)

  12. Turbulence, orbit equivalence, and the classification of nuclear C-algebras

    DEFF Research Database (Denmark)

    Farah, Ilijas; Toms, Andrew; Törnquist, Asger Dag

    2014-01-01

    Choquet simplexes. As a by-product we recover a result of Kechris and Solecki, namely, that homeomorphism of compacta in the Hilbert cube is Borel reducible to a Polish group action. These results depend intimately on the classification theory of nuclear simple C*-algebras by K-theory and traces. Both...... of necessity and in order to lay the groundwork for further study on the Borel complexity of C*-algebras, we prove that many standard C*-algebra constructions and relations are Borel, and we prove Borel versions of Kirchberg's O2-stability and embedding theorems. We also find a C*-algebraic witness for a Kσ...

  13. Suggestion on the safety classification of spent fuel dry storage in China’s pressurized water reactor nuclear power plant

    Science.gov (United States)

    Liu, Ting; Qu, Yunhuan; Meng, De; Zhang, Qiaoer; Lu, Xinhua

    2018-01-01

    China’s spent fuel storage in the pressurized water reactors(PWR) is stored with wet storage way. With the rapid development of nuclear power industry, China’s NPPs(NPPs) will not be able to meet the problem of the production of spent fuel. Currently the world’s major nuclear power countries use dry storage as a way of spent fuel storage, so in recent years, China study on additional spent fuel dry storage system mainly. Part of the PWR NPP is ready to apply for additional spent fuel dry storage system. It also need to safety classificate to spent fuel dry storage facilities in PWR, but there is no standard for safety classification of spent fuel dry storage facilities in China. Because the storage facilities of the spent fuel dry storage are not part of the NPP, the classification standard of China’s NPPs is not applicable. This paper proposes the safety classification suggestion of the spent fuel dry storage for China’s PWR NPP, through to the study on China’s safety classification principles of PWR NPP in “Classification for the items of pressurized water reactor nuclear power plants (GB/T 17569-2013)”, and safety classification about spent fuel dry storage system in NUREG/CR - 6407 in the United States.

  14. Civil liability on nuclear activities; Responsabilidade civil nas atividades nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Bittar, C A

    1983-12-31

    The civil liability theory in the actual context is shown in the first and second part of this thesis, including some considerations about concepts and types of liability in dangerous and not dangerous activities. In the third part, the legal aspects of civil liability for the nuclear activities are analyzed, with a brief description of the history evolution, standard systems, inspection corporation and juridical regulation. (C.G.C.). 239 refs.

  15. Nuclear waste: Status of DOE's nuclear waste site characterization activities

    International Nuclear Information System (INIS)

    1987-01-01

    Three potential nuclear waste repository sites have been selected to carry out characterization activities-the detailed geological testing to determine the suitability of each site as a repository. The sites are Hanford in south-central Washington State, Yucca Mountain in southern Nevada, and Deaf Smith in the Texas Panhandle. Two key issues affecting the total program are the estimations of the site characterization completion data and costs and DOE's relationship with the Nuclear Regulatory Commission which has been limited and its relations with affected states and Indian tribes which continue to be difficult

  16. Classification of low-level radioactive wastes from nuclear power plants

    International Nuclear Information System (INIS)

    Stanford, R.E.L.

    1984-01-01

    The NRC regulation, 10 CFR Part 61, establishes three classes of wastes designated A, B, and C based on listed concentrations of specific nuclides. The NRC Branch Technical Position (BTP) relative to the required compliance program focused on extensive waste stream sampling and analysis as a means of compliance. To meet the above regulatory requirements, an engineering analysis approach for quantifying the concentrations and amounts of radionuclides of classification concern was developed as an alternative to an extensive and difficult waste sampling and analysis program. Essentially this methodology involves a material balance of radionuclides which for the most part originate in the reactor core and are transported to the waste streams by reactor coolants and whose concentration in the coolant is primarily a function of fuel performance. The use of scaling factors between readily measured key radionuclides and others required for classification have been published in Report AIF/NESP-027 entitled, Methodologies for Classification of Low-Level Radioactive Wastes from Nuclear Power Plants. Since then data from about 1000 samples on nuclide concentrations in various reactor waste streams from 65 units at 40 sites was collated, analyzed and evaluated to confirm the calculational methodology in AIF/NESP-027. In summary, the approach and results of the engineering analysis methodology were validated

  17. Semi-Supervised Classification for Fault Diagnosis in Nuclear Power Plants

    International Nuclear Information System (INIS)

    Ma, Jian Ping; Jiang, Jin

    2014-01-01

    Pattern classification methods have become important tools for fault diagnosis in industrial systems. However, it is normally difficult to obtain reliable labeled data to train a supervised pattern classification model for applications in a nuclear power plant (NPP). However, unlabeled data easily become available through increased deployment of supervisory, control, and data acquisition (SCADA) systems. In this paper, a fault diagnosis scheme based on semi-supervised classification (SSC) method is developed with specific applications for NPP. In this scheme, newly measured plant data are treated as unlabeled data. They are integrated with selected labeled data to train a SSC model which is then used to estimate labels of the new data. Compared to exclusive supervised approaches, the proposed scheme requires significantly less number of labeled data to train a classifier. Furthermore, it is shown that higher degree of uncertainties in the labeled data can be tolerated. The developed scheme has been validated using the data generated from a desktop NPP simulator and also from a physical NPP simulator using a graph-based SSC algorithm. Two case studies have been used in the validation process. In the first case study, three faults have been simulated on the desktop simulator. These faults have all been classified successfully with only four labeled data points per fault case. In the second case, six types of fault are simulated on the physical NPP simulator. All faults have been successfully diagnosed. The results have demonstrated that SSC is a promising tool for fault diagnosis

  18. Classification of radiation-hazardous objects by the ecological risk rate, based on the concept of the International Nuclear Event Scale (INES)

    International Nuclear Information System (INIS)

    Vetrov, V.A.

    2003-01-01

    The principal categories of the radiation-hazardous objects (RHO) (nuclear fuel cycle plants (NFC including NPP); ships with nuclear engine units and appropriate service facilities; units related with nuclear weapons (design, manufacture, storage, etc.); contaminated territories in the result nuclear accidents and nuclear facilities tests; civil enterprises using the radioactive sources) with real accident risk from radioactive substances (RS) release into environment are considered. For assessment of the ecological risk rate from RHO the International Nuclear Event Scale implemented by IAEA for NPP use is suggested. By opinion of the specialists the INES criteria could be used for radiation events assessment to other RHO that gives possibility for RHO arrangement by the potential hazard rate for environment in the case of accident. For RHO qualitative classification the main parameters assessment influencing on radioactive release risk (amount (total activity) of radioactive substances; possibility of chain reaction development; strength of technological parameters, etc.) was suggested. On the base of the INES all above-listed RHO kinds in the case of accident could be conditionally separated into three categories: 1. most radiation dangerous objects, on which could be severe and serious radiation accidents (corresponding to 4-7 INES levels); 2. RHO on which there is risk for accidents accompanying with RS release (accidents up to 4 INES level). 3. RHO without practical possibility for event (incidents - not higher 3 INES level). Introduction of suggested classification gives possibility for RHO safety control requirements rationalizing to radiation monitoring purposes for both RHO and the local systems

  19. Classification and Reevaluation on Radionuclide and Activity of Contaminated Soil(I)

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Il Sik; Shon, J. S.; Kim, K. J.; Kim, T. K.; Hong, D. S.; Lee, B. C.; Cho, H. S.; Je, W. G

    2006-03-15

    Radioactive wastes generated during the decommissioning process and contaminated soils were transported and have been stored at the waste storage facility. The radioactivity in the wastes has been decayed a lot. The radionuclide and the activity concentration of stored soil wastes were reevaluated. And using the reevaluation results, the soil wastes were classified as either a regulatory clearance wastes or a radioactive waste. The storage space can be secured by storing regulatory clearance wastes in the extra storage facility and self disposing them. Also, the objective is to protect the environment from contamination by observing the related nuclear regulation and managing the radioactive wastes. Through the reevaluation of radioactivity and classification of contaminated soils, the unnecessary decontamination of uncontaminated soil was prevented. It allowed us to save the cost for decontamination and disposal, also we could secure the pretreatment process techniques such as how to sample and analyze the nuclide.

  20. Globalization of nuclear activities and global governance

    International Nuclear Information System (INIS)

    Sefidvash, Farhang

    1997-01-01

    The safe production of nuclear energy as well as the disarmament of nuclear weapons and the peaceful utilization of nuclear materials resulting from dismantling of such weapons are some of the formidable problems of global governance. The Commission on Global Governance was established in 1992 in the belief that international developments had created a unique opportunity for strengthening global co-operation to meet the challenge of securing peace, achieving sustainable development, and universalizing democracy. Here a summary of their proposals on the globalization of nuclear activities to face challenges of the coming century is given. To follow up their activities by the worlds community in general. The research Centre for Global Governance (RCGG) at the Federal University of Rio Grande do Sul was established. Already a great number of researchers from many different countries have adhered to the Centre. Here the program of the RCGG is described. (author)

  1. Globalization of nuclear activities and global governance

    Energy Technology Data Exchange (ETDEWEB)

    Sefidvash, Farhang [Rio Grande do Sul Univ., Porto Alegre, RS (Brazil). Dept. de Engenharia Nuclear

    1997-07-01

    The safe production of nuclear energy as well as the disarmament of nuclear weapons and the peaceful utilization of nuclear materials resulting from dismantling of such weapons are some of the formidable problems of global governance. The Commission on Global Governance was established in 1992 in the belief that international developments had created a unique opportunity for strengthening global co-operation to meet the challenge of securing peace, achieving sustainable development, and universalizing democracy. Here a summary of their proposals on the globalization of nuclear activities to face challenges of the coming century is given. To follow up their activities by the worlds community in general. The research Centre for Global Governance (RCGG) at the Federal University of Rio Grande do Sul was established. Already a great number of researchers from many different countries have adhered to the Centre. Here the program of the RCGG is described. (author)

  2. Fusion Nuclear Data activities at FNL, IPR

    OpenAIRE

    P. M. Prajapati; B. Pandey; S. Jakhar; C.V. S. Rao; T. K. Basu; B. K. Nayak; S. V. Suryanarayana; A. Saxena

    2015-01-01

    This paper briefly describes the current fusion nuclear data activities at Fusion Neutronics Laboratory, Institute for Plasma Research. It consist of infrastructure development for the cross-section measurements of structural materials with an accelerator based 14 MeV neutron generator and theoretical study of the cross-section using advanced nuclear reaction modular codes EMPIRE and TALYS. It will also cover the proposed surrogate experiment to measure 55Fe (n, p) 55Mn using BARC-TIFR Pel...

  3. Nuclear reactors transients identification and classification system; Sistema de identificacao e classificacao de transientes em reatores nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Bianchi, Paulo Henrique

    2008-07-01

    This work describes the study and test of a system capable to identify and classify transients in thermo-hydraulic systems, using a neural network technique of the self-organizing maps (SOM) type, with the objective of implanting it on the new generations of nuclear reactors. The technique developed in this work consists on the use of multiple networks to do the classification and identification of the transient states, being each network a specialist at one respective transient of the system, that compete with each other using the quantization error, that is a measure given by this type of neural network. This technique showed very promising characteristics that allow the development of new functionalities in future projects. One of these characteristics consists on the potential of each network, besides responding what transient is in course, could give additional information about that transient. (author)

  4. Managing Siting Activities for Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-06-15

    One of the IAEA's statutory objectives is to ''seek to accelerate and enlarge the contribution of atomic energy to peace, health and prosperity throughout the world''. One way this objective is achieved is through the publication of a range of technical series. Two of these are the IAEA Nuclear Energy Series and the IAEA Safety Standards Series. According to Article III.A.6 of the IAEA Statute, the safety standards establish 'standards of safety for protection of health and minimization of danger to life and property.' The safety standards include the Safety Fundamentals, Safety Requirements and Safety Guides. These standards are written primarily in a regulatory style, and are binding on the IAEA for its own programmes. The principal users are the regulatory bodies in Member States and other national authorities. The IAEA Nuclear Energy Series comprises reports designed to encourage and assist R and D on, and application of, nuclear energy for peaceful uses. This includes practical examples to be used by owners and operators of utilities in Member States, implementing organizations, academia, and government officials, among others. This information is presented in guides, reports on technology status and advances, and best practices for peaceful uses of nuclear energy based on inputs from international experts. The IAEA Nuclear Energy Series complements the IAEA Safety Standards Series. The introduction of nuclear power brings new challenges to States - one of them being the selection of appropriates sites. It is a project that needs to begin early, be well managed, and deploy good communications with all stakeholders; including regulators. This is important, not just for those States introducing nuclear power for the first time, but for any State looking to build a new nuclear power plant. The purpose of the siting activities goes beyond choosing a suitable site and acquiring a licence. A large part of the project is about producing and maintaining a validated

  5. Managing Siting Activities for Nuclear Power Plants

    International Nuclear Information System (INIS)

    2012-01-01

    One of the IAEA's statutory objectives is to ''seek to accelerate and enlarge the contribution of atomic energy to peace, health and prosperity throughout the world''. One way this objective is achieved is through the publication of a range of technical series. Two of these are the IAEA Nuclear Energy Series and the IAEA Safety Standards Series. According to Article III.A.6 of the IAEA Statute, the safety standards establish 'standards of safety for protection of health and minimization of danger to life and property.' The safety standards include the Safety Fundamentals, Safety Requirements and Safety Guides. These standards are written primarily in a regulatory style, and are binding on the IAEA for its own programmes. The principal users are the regulatory bodies in Member States and other national authorities. The IAEA Nuclear Energy Series comprises reports designed to encourage and assist R and D on, and application of, nuclear energy for peaceful uses. This includes practical examples to be used by owners and operators of utilities in Member States, implementing organizations, academia, and government officials, among others. This information is presented in guides, reports on technology status and advances, and best practices for peaceful uses of nuclear energy based on inputs from international experts. The IAEA Nuclear Energy Series complements the IAEA Safety Standards Series. The introduction of nuclear power brings new challenges to States - one of them being the selection of appropriates sites. It is a project that needs to begin early, be well managed, and deploy good communications with all stakeholders; including regulators. This is important, not just for those States introducing nuclear power for the first time, but for any State looking to build a new nuclear power plant. The purpose of the siting activities goes beyond choosing a suitable site and acquiring a licence. A large part of the project is about producing and maintaining a validated

  6. A support vector machine integrated system for the classification of operation anomalies in nuclear components and systems

    International Nuclear Information System (INIS)

    Rocco S, Claudio M.; Zio, Enrico

    2007-01-01

    A support vector machine (SVM) approach to the classification of transients in nuclear power plants is presented. SVM is a machine-learning algorithm that has been successfully used in pattern recognition for cluster analysis. In the present work, single- and multiclass SVM are combined into a hierarchical structure for distinguishing among transients in nuclear systems on the basis of measured data. An example of application of the approach is presented with respect to the classification of anomalies and malfunctions occurring in the feedwater system of a boiling water reactor. The data used in the example are provided by the HAMBO simulator of the Halden Reactor Project

  7. Nuclear activated cw chemical laser

    International Nuclear Information System (INIS)

    Roberts, T.G.

    1982-01-01

    A cw chemical laser which uses processed radioactive waste to produce active atoms from a chemically inactive gas before being mixed with another molecule such as hydrogen or deuterium is disclosed. This laser uses no toxic or corrosive fuels and does not require any electrical or other type of auxiliary power supply. The energy released by the radioactive material is used to produce the active atoms such as fluorine. This is accomplished by using the radiation products from processed radioactive waste to dissociate the inert gas in the plenum of the laser. The radioactive material is held in the passageway walls of a device similar to a heat exchanger. The exchanger device may be located in the gas generator section of a chemical laser. The inactive gas is passed through the exchanger device and while passing through it the radiation from the radioactive material dissociates the gas, producing a concentration of free active atoms. This active atom generator then feeds the nozzle bank or mixing section of a laser to produce a lasing action

  8. Solar wind and geomagnetism: toward a standard classification of geomagnetic activity from 1868 to 2009

    Directory of Open Access Journals (Sweden)

    J. L. Zerbo

    2012-02-01

    Full Text Available We examined solar activity with a large series of geomagnetic data from 1868 to 2009. We have revisited the geomagnetic activity classification scheme of Legrand and Simon (1989 and improve their scheme by lowering the minimum Aa index value for shock and recurrent activity from 40 to 20 nT. This improved scheme allows us to clearly classify about 80% of the geomagnetic activity in this time period instead of only 60% for the previous Legrand and Simon classification.

  9. Classification of materials of rotation in nuclear power plants for optimization of the procurement process

    International Nuclear Information System (INIS)

    Canto Polo, R.; Valle Arribas, M. M.; Lopez Hernandez, A.; Arguello Tara, A.; Benito Rubio, A.; Sanjuan Cuesta, A.

    2014-01-01

    The Central nuclear de Almaraz and Trillo have decided to make a classification at the level of sub components of the installed equipment to facilitate and improve the management of the purchase of spare parts. Thus the correct purchase will be simpler or dedication materials (the latter is gaining more and more relevance) which, by its function, so require. Given the large volume of work is has established a specific methodology and, whenever possible, we will work analyzing spares generically. A few documents or tabs of sorting criteria, associated with different types of materials (nuts, bolts, flanges, stems, etc.), which will gather the rankings that emerged from the analysis of the materials included within the scope will be created. (Author)

  10. Criteria for classification and reporting of fire incidences in nuclear power plants of India

    International Nuclear Information System (INIS)

    Kapoor, R.K.

    1998-01-01

    Is is important that all fires in and around fire effective neighbourhood of Nuclear Power Plant (NPP) should be promptly reported (Reportable fires) and investigated. However, the depth of investigation and the range of authorities to whom the individual fire incidence need to be reported depends upon the severity of fire. In case of conventional non-chemical industries, the severity of fire depends mainly on the extent of loss caused by fire on property and the burn injury to persons. In case of NPP, two additional losses viz, release of radioactivity to working/public environment and the risk to safety related systems of NPP due to fire assume greater importance. This paper describes the criteria used in NPPs of India for classification of reportable fire incidences into four categories, viz. Insignificant, small, medium and large fires. It also gives the level of investigation depending upon the severity of fire. The fire classification scheme is explained in this paper with the help of worked out examples and two incidences of fire in Indian NPPs. (author)

  11. Nuclear data for proton activation analysis

    Energy Technology Data Exchange (ETDEWEB)

    Mukhammedov, S; Vasidov, A [Institute of Nuclear Physics of Academy of Sciences of Uzbekistan, 702132 Ulugbek, Tashkent (Uzbekistan); Comsan, M N.H. [Nuclear Research Centre, Inshas Cyclotron Facility, AEA 13759 Cairo (Egypt)

    2000-11-15

    The activation analysis with charged particles (ChPAA), as well as proton activation analysis (PAA), mainly requires separately irradiation of thick (thicker than the range of particles) samples and standard. Therefore for simplicity of determination of traces of chemical elements by instrumental PAA the absolute activity of the radionuclides must be known. Consequently we compilated data for nuclear decays (half life, radiation energy and intensity, type of decay, saturation factor), for nuclear reactions (excitation function, threshold energy, Q-value, yields of radionuclides), for the element under study (natural isotopic abundance of the nuclide, which yields the nuclear reaction considered, molar mass), stopping power of the irradiated material and the range of the particle that are used in the calculation of the absolute activity of the radionuclides and for the resolution of a nuclear interference problems of PAA. These data are tabulated. The tables of the radionuclides are presented in dependence on increasing atomic number and radiation energy as well as on methods of the radionuclide formation. The thick target yields of analytical radionuclides are presented versus particle energy.

  12. Status of nuclear data activities at Karlsruhe

    Energy Technology Data Exchange (ETDEWEB)

    Kawano, Toshihiko [Kyushu Univ., Fukuoka (Japan)

    1997-03-01

    This is a brief introduction to nuclear data activity at Karlsruhe Research Center. Some URLs concerned are given. Topics mentioned here are, the FENDL and JEF/EFF project at INR, and measurements of neutron capture cross sections at IK III. (author)

  13. Nuclear data for proton activation analysis

    International Nuclear Information System (INIS)

    Mukhammedov, S.; Vasidov, A.; Comsan, M.N.H.

    2000-01-01

    The activation analysis with charged particles (ChPAA), as well as proton activation analysis (PAA), mainly requires separately irradiation of thick (thicker than the range of particles) samples and standard. Therefore for simplicity of determination of traces of chemical elements by instrumental PAA the absolute activity of the radionuclides must be known. Consequently we compilated data for nuclear decays (half life, radiation energy and intensity, type of decay, saturation factor), for nuclear reactions (excitation function, threshold energy, Q-value, yields of radionuclides), for the element under study (natural isotopic abundance of the nuclide, which yields the nuclear reaction considered, molar mass), stopping power of the irradiated material and the range of the particle that are used in the calculation of the absolute activity of the radionuclides and for the resolution of a nuclear interference problems of PAA. These data are tabulated. The tables of the radionuclides are presented in dependence on increasing atomic number and radiation energy as well as on methods of the radionuclide formation. The thick target yields of analytical radionuclides are presented versus particle energy

  14. Disposal of high-activity nuclear wastes

    International Nuclear Information System (INIS)

    Hamilton, E.I.

    1983-01-01

    A discussion is presented on the deep sea ocean disposal for high-activity nuclear wastes. The following topics are covered: effect of ionizing radiation on marine ecosystems; pathways by which radionuclides are transferred to man from the marine environment; information about releases of radioactivity to the sea; radiological protection; storage and disposal of radioactive wastes and information needs. (U.K.)

  15. Planning of the regulatory inspection activity during manufacturing, construction and operation of the Italian nuclear plants

    International Nuclear Information System (INIS)

    Messore, G.A.

    1977-01-01

    After a brief review of the provisions in force in Italy on the inspection of nuclear installations the paper deals with the main criteria which determine the general and annual inspection programmes for every nuclear installation and the procedures for recording the results of inspections. It also describes the classification of nuclear installations into different categories according to the degree of hazard presented by their respective activities and consequently, the selection of the minimum number of inspections to be conducted every year for each of these categories. (NEA) [fr

  16. Exploiting monotonicity constraints for active learning in ordinal classification

    NARCIS (Netherlands)

    Soons, Pieter; Feelders, Adrianus

    2014-01-01

    We consider ordinal classification and instance ranking problems where each attribute is known to have an increasing or decreasing relation with the class label or rank. For example, it stands to reason that the number of query terms occurring in a document has a positive influence on its relevance

  17. OECD Nuclear Energy Agency. 5 activity report. 1976

    International Nuclear Information System (INIS)

    1977-01-01

    The main activities of the Agency are reviewed: nuclear power trends; regulatory aspects of nuclear power; technical developments: Eurochemic, Halden, Dragon, food irradiation; gas-cooled fast reactors, isotopic batteries; nuclear data Centers

  18. OECD Nuclear Energy Agency. 3. Activity report, 1974

    International Nuclear Information System (INIS)

    1975-01-01

    The main activities of the Agency are reviewed: study of nuclear power trends; regulatory aspects of nuclear power; technical developments: Eurochemic, Halden, Dragon, food irradiation, gas-cooled fast reactors, direct conversion, isotopic batteries; nuclear energy information

  19. Integrated Optimization of Long-Range Underwater Signal Detection, Feature Extraction, and Classification for Nuclear Treaty Monitoring

    NARCIS (Netherlands)

    Tuma, M.; Rorbech, V.; Prior, M.; Igel, C.

    2016-01-01

    We designed and jointly optimized an integrated signal processing chain for detection and classification of long-range passive-acoustic underwater signals recorded by the global geophysical monitoring network of the Comprehensive Nuclear-Test-Ban Treaty Organization. Starting at the level of raw

  20. Advancing capabilities for detecting undeclared nuclear activities

    International Nuclear Information System (INIS)

    Baute, J.

    2013-01-01

    When a country presents a consistent, transparent and predictable picture of its nuclear programme that is supported by the analysis of all information, IAEA inspectors do not need to go there as frequently for routine verification activities. Rather IAEA can redirect those resources to addressing safeguards issues in the state posing real proliferation concerns. The point is how to establish a coherent picture of a nuclear program and how to identify early warnings of safeguard breaches. A key element is the exploitation of all the information available (open sources, inspection report, satellite imagery, state declarations,...) through effective and quick information analysis. This document is made up of the slides of the presentation

  1. Activation Analysis and Nuclear Research in Burma

    Energy Technology Data Exchange (ETDEWEB)

    Thiele, R. W.

    1971-07-01

    Research endeavours in the field of Nuclear Sciences in Burma appear to be concentrated in three main Institutions. These are the Chemistry and Physics Departments of the Rangoon Arts & Science University and the Union of Burma Applied Research Institute (UBARI). In view of possible forthcoming developments an expanded research programme, which is to be implemented on the basis of a five year plan, has been drawn up. Research topics included in this programme are predominantly of practical interest and aimed at a contribution by nuclear methods, in particular activation analysis, to the technological and industrial needs of the country.

  2. Scientific activities 1980 Nuclear Research Center ''Democritos''

    International Nuclear Information System (INIS)

    1982-01-01

    The scientific activities and achievements of the Nuclear Research Center Democritos for the year 1980 are presented in the form of a list of 76 projects giving title, objectives, responsible of each project, developed activities and the pertaining lists of publications. The 16 chapters of this work cover the activities of the main Divisions of the Democritos NRC: Electronics, Biology, Physics, Chemistry, Health Physics, Reactor, Scientific Directorate, Radioisotopes, Environmental Radioactivity, Soil Science, Computer Center, Uranium Exploration, Medical Service, Technological Applications, Radioimmunoassay and Training. (N.C.)

  3. Outreach activity by using three-dimensional nuclear chart. Understanding nuclear physics and nuclear energy

    International Nuclear Information System (INIS)

    Koura, Hiroyuki

    2015-01-01

    A three-dimensional nuclear chart is constructed with toy blocks for usage of outreach activity related on nuclear physics and atomic energy. The height of each block represents quantities like atomic mass per nucleon, the total half-life, etc. The bulk properties of the nuclei can be easily understood by using these charts. Explanations for the energy generation of nuclear fusion and fission are visually given. In addition, we newly set another chart with blocks of fission fragment mass distribution from U-235 + a thermal neutron. As an example, the origin of abundances of rather radioactive isotopes like Sr-90 and Cs-137 is explained which created in nuclear reactor and also distributed in the eastern side of Fukushima prefecture due to the accident of Fukushima-Daiichi Nuclear Power Plant. Using our charts, lectures entitled 'Alchemy of the Universe' were delivered to high schools and public places. (author)

  4. Experimental Nuclear Physics Activity in Italy

    Science.gov (United States)

    Chiavassa, E.; de Marco, N.

    2003-04-01

    The experimental Nuclear Physics activity of the Italian researchers is briefly reviewed. The experiments, that are financially supported by the INFN, are done in strict collaboration by more than 500 INFN and University researchers. The experiments cover all the most important field of the modern Nuclear Physics with probes extremely different in energy and interactions. Researches are done in all the four National Laboratories of the INFN even if there is a deeper involvement of the two national laboratories expressly dedicated to Nuclear Physics: the LNL (Laboratorio Nazionale di Legnaro) and LNS (Laboratorio Nazionale del Sud) where nuclear spectroscopy and reaction dynamics are investigated. All the activities with electromagnetic probes develops in abroad laboratories as TJNAF, DESY, MAMI, ESFR and are dedicated to the studies of the spin physics and of the nucleon resonance; hypernuclear and kaon physics is investigated at LNF. A strong community of researchers work in the relativistic and ultra-relativistic heavy ions field in particular at CERN with the SPS Pb beam and in the construction of the ALICE detector for heavy-ion physics at the LHC collider. Experiments of astrophysical interest are done with ions of very low energy; in particular the LUNA accelerator facility at LNGS (Laboratorio Nazionale del Gran Sasso) succeeded measuring cross section at solar energies, below or near the solar Gamow peak. Interdisciplinary researches on anti-hydrogen atom spectroscopy and on measurements of neutron cross sections of interest for ADS development are also supported.

  5. Nuclear activation techniques in the life sciences

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1978-08-15

    The analysis of the elemental composition of biological materials is presently undertaken on a large scale in many countries around the world One recent estimate puts the number of such analyses at six thousand million single-element determinations per year, of which about sixteen million are for the so-called trace elements. Since many of these elements are known to play an important role in relation to health and disease, there is considerable interest in learning more about the ways in which they function in living organisms. Nuclear activation techniques, generally referred to collectively as 'activation analysis' constitute an important group of methods for the analysis of the elemental composition of biological materials. Generally they rely on the use of a research nuclear reactor as a source of neutrons for bombarding small samples of biological material, followed by a measurement of the induced radioactivity to provide an estimate of the concentrations of elements. Other methods of activation with Bremsstrahlung and charged particles may also be used, and have their own special applications. These methods of in vitro analysis are particularly suitable for the study of trace elements. Another important group of methods makes use of neutrons from isotopic neutron sources or neutron generators to activate the whole body, or a part of the body, of a living patient. They are generally used for the study of major elements such as Ca, Na and N. All these techniques have previously been the subject of two symposia organised by the IAEA in 1967 and 1972. The present meeting was held to review some of the more recent developments in this field and also to provide a viewpoint on the current status of nuclear activation techniques vis-a-vis other competing non-nuclear methods of analysis.

  6. Nuclear Forensics' role in analyzing nuclear trafficking activities

    International Nuclear Information System (INIS)

    Hrnecek, E.; Mayer, K.; Schubert, A.; Wallenius, M.

    2010-01-01

    Nuclear forensics aims at identifying origin and intended use of nuclear material using information inherent to the nuclear material.The information gathered in nuclear forensics include isotopic composition, elemental composition, impurities and age of the material, macroscopic appearance and microstructure. The information so collected helps to solve criminal cases and put the individuals involved in nuclear trafficking in jails. The information also helps to improve safeguards and physical protection measures at place of theft or diversion to prevent future thefts or diversions.

  7. Applied nuclear physics group - activities report. 1977-1997

    International Nuclear Information System (INIS)

    Appoloni, Carlos Roberto

    1998-06-01

    This report presents the activities conducted by the Applied Nuclear Physics group of the Londrina State University - Applied Nuclear Physics Laboratory - Brazil, from the activities beginning (1977) up to the end of the year 1997

  8. Nuclear Power and Safety Division activity

    International Nuclear Information System (INIS)

    Pazdera, F.

    1991-01-01

    History of the Division is briefly described. Present research is centered on reliability analyses and thermal hydraulic analyses of transients and accidents. Some results of the safety analyses have been applied at nuclear power plants. A characterization is presented of computer codes for analyzing the behavior of fuel in normal and accident conditions. Research activities in the field of water chemistry and corrosion are oriented to the corrosion process at high temperatures and high pressures, and the related mass and radioactivity transfer; the effect of some chemical processes on primary coolant circuit materials; optimization of PWR filtration systems; and the development of the requisite monitoring instrumentation. A computerized operator support system has been developed, and at present it is tested at the Dukovany nuclear power plant. A program of nuclear fuel cycle strategy and economy has been worked out for nuclear fuel performance evaluation. Various options for better fuel exploitation, alternatives for advanced fuelling, and fuel cycle costs are assessed, and out-of-reactor fuel cycle options are compared. (M.D.). 7 refs., 32 refs

  9. Regulation of nuclear and radiological activities; Reglementarea activitatilor nucleare si radiologice

    Energy Technology Data Exchange (ETDEWEB)

    Sidorencu, Angela; Vasilieva, Natalia; Buzdugan, Artur; Balan, Ionel [Agentia Nationala de Reglementare a Activitatilor Nucleare si Radiologice, Alecu Russo, 1, MD 2068, Chisinau (Moldova, Republic of)

    2012-08-15

    The paper presents a review of the Moldovan regulatory framework regarding nuclear and radiological activities and of the competence of state regulatory authority - the National Agency for the Regulation of Nuclear and Radiological Activities.

  10. Applying Active Learning to Assertion Classification of Concepts in Clinical Text

    Science.gov (United States)

    Chen, Yukun; Mani, Subramani; Xu, Hua

    2012-01-01

    Supervised machine learning methods for clinical natural language processing (NLP) research require a large number of annotated samples, which are very expensive to build because of the involvement of physicians. Active learning, an approach that actively samples from a large pool, provides an alternative solution. Its major goal in classification is to reduce the annotation effort while maintaining the quality of the predictive model. However, few studies have investigated its uses in clinical NLP. This paper reports an application of active learning to a clinical text classification task: to determine the assertion status of clinical concepts. The annotated corpus for the assertion classification task in the 2010 i2b2/VA Clinical NLP Challenge was used in this study. We implemented several existing and newly developed active learning algorithms and assessed their uses. The outcome is reported in the global ALC score, based on the Area under the average Learning Curve of the AUC (Area Under the Curve) score. Results showed that when the same number of annotated samples was used, active learning strategies could generate better classification models (best ALC – 0.7715) than the passive learning method (random sampling) (ALC – 0.7411). Moreover, to achieve the same classification performance, active learning strategies required fewer samples than the random sampling method. For example, to achieve an AUC of 0.79, the random sampling method used 32 samples, while our best active learning algorithm required only 12 samples, a reduction of 62.5% in manual annotation effort. PMID:22127105

  11. Nuclear power plant transient diagnostics using artificial neural networks that allow ''don't-know'' classifications

    International Nuclear Information System (INIS)

    Bartal, Y.; Lin, J.; Uhrig, R.E.

    1995-01-01

    A nuclear power plant's (NPP's) status is usually monitored by a human operator. Any classifier system used to enhance the operator's capability to diagnose a safety-critical system like an NPP should classify a novel transient as ''don't-know'' if it is not contained within its accumulated knowledge base. In particular, the classifier needs some kind of proximity measure between the new data and its training set. Artificial neural networks have been proposed as NPP classifiers, the most popular ones being the multilayered perceptron (MLP) type. However, MLPs do not have a proximity measure, while learning vector quantization, probabilistic neural networks (PNNs), and some others do. This proximity measure may also serve as an explanation to the classifier's decision in the way that case-based-reasoning expert systems do. The capability of a PNN network as a classifier is demonstrated using simulator data for the three-loop 436-MW(electric) Westinghouse San Onofre unit 1 pressurized water reactor. A transient's classification history is used in an ''evidence accumulation'' technique to enhance a classifier's accuracy as well as its consistency

  12. Building Public Confidence in Nuclear Activities

    International Nuclear Information System (INIS)

    Isaacs, T

    2002-01-01

    Achieving public acceptance has become a central issue in discussions regarding the future of nuclear power and associated nuclear activities. Effective public communication and public participation are often put forward as the key building blocks in garnering public acceptance. A recent international workshop in Finland provided insights into other features that might also be important to building and sustaining public confidence in nuclear activities. The workshop was held in Finland in close cooperation with Finnish stakeholders. This was most appropriate because of the recent successes in achieving positive decisions at the municipal, governmental, and Parliamentary levels, allowing the Finnish high-level radioactive waste repository program to proceed, including the identification and approval of a proposed candidate repository site. Much of the workshop discussion appropriately focused on the roles of public participation and public communications in building public confidence. It was clear that well constructed and implemented programs of public involvement and communication and a sense of fairness were essential in building the extent of public confidence needed to allow the repository program in Finland to proceed. It was also clear that there were a number of other elements beyond public involvement that contributed substantially to the success in Finland to date. And, in fact, it appeared that these other factors were also necessary to achieving the Finnish public acceptance. In other words, successful public participation and communication were necessary but not sufficient. What else was important? Culture, politics, and history vary from country to country, providing differing contexts for establishing and maintaining public confidence. What works in one country will not necessarily be effective in another. Nonetheless, there appear to be certain elements that might be common to programs that are successful in sustaining public confidence and some of

  13. Building Public Confidence in Nuclear Activities

    International Nuclear Information System (INIS)

    Isaacs, T

    2002-01-01

    Achieving public acceptance has become a central issue in discussions regarding the future of nuclear power and associated nuclear activities. Effective public communication and public participation are often put forward as the key building blocks in garnering public acceptance. A recent international workshop in Finland provided insights into other features that might also be important to building and sustaining public confidence in nuclear activities. The workshop was held in Finland in close cooperation with Finnish stakeholders. This was most appropriate because of the recent successes in achieving positive decisions at the municipal, governmental, and Parliamentary levels, allowing the Finnish high-level radioactive waste repository program to proceed, including the identification and approval of a proposed candidate repository site Much of the workshop discussion appropriately focused on the roles of public participation and public communications in building public confidence. It was clear that well constructed and implemented programs of public involvement and communication and a sense of fairness were essential in building the extent of public confidence needed to allow the repository program in Finland to proceed. It was also clear that there were a number of other elements beyond public involvement that contributed substantially to the success in Finland to date. And, in fact, it appeared that these other factors were also necessary to achieving the Finnish public acceptance. In other words, successful public participation and communication were necessary but not sufficient. What else was important? Culture, politics, and history vary from country to country, providing differing contexts for establishing and maintaining public confidence. What works in one country will not necessarily be effective in another. Nonetheless, there appear to be certain elements that might be common to programs that are successful in sustaining public confidence, and some of

  14. Nuclear Power Plant Thermocouple Sensor-Fault Detection and Classification Using Deep Learning and Generalized Likelihood Ratio Test

    Science.gov (United States)

    Mandal, Shyamapada; Santhi, B.; Sridhar, S.; Vinolia, K.; Swaminathan, P.

    2017-06-01

    In this paper, an online fault detection and classification method is proposed for thermocouples used in nuclear power plants. In the proposed method, the fault data are detected by the classification method, which classifies the fault data from the normal data. Deep belief network (DBN), a technique for deep learning, is applied to classify the fault data. The DBN has a multilayer feature extraction scheme, which is highly sensitive to a small variation of data. Since the classification method is unable to detect the faulty sensor; therefore, a technique is proposed to identify the faulty sensor from the fault data. Finally, the composite statistical hypothesis test, namely generalized likelihood ratio test, is applied to compute the fault pattern of the faulty sensor signal based on the magnitude of the fault. The performance of the proposed method is validated by field data obtained from thermocouple sensors of the fast breeder test reactor.

  15. Final hazard classification for the 116-F-4 (Terra Stor) soil retrieval activities

    International Nuclear Information System (INIS)

    Adam, W.J.

    1996-07-01

    The purpose of this document is to provide the final hazard classification for the remediation activities described in the Work Plan for the Retrieval of Contaminated Soil from the 116-F-4 Storage Unit. Based upon total inventories calculated from the characterization data, a preliminary hazard categorization of less than Hazard Category 3 was assigned. Based upon the material-at-risk, a final hazard classification of radiological was assigned

  16. Nuclear data project evaluation activity report. October 1998 - October 2000

    International Nuclear Information System (INIS)

    Akovali, Y.; Blackmon, J.; Radford, D.; Smith, M.

    2001-01-01

    This report summarizes the activities of the ORNL Nuclear Data Project since the IAEA Advisory Group meeting in December 1998. The group's future plans are also included. The ORNL Nuclear Data Project's responsibility includes the compilation/evaluation of astrophysics data, as well as the evaluation and compilation of nuclear structure data. The Nuclear Data Project, therefore, is composed of two groups. The Nuclear Data Project staff through September 2000 is listed below. Accomplishments for the period of October 1998 through September 2000 of the nuclear structure data group and the nuclear astrophysics group are submitted in this Nuclear Data Project report

  17. Nuclear data project evaluation activity report. October 1998 - October 2000

    Energy Technology Data Exchange (ETDEWEB)

    Akovali, Y; Blackmon, J; Radford, D; Smith, M [Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN (United States)

    2001-02-01

    This report summarizes the activities of the ORNL Nuclear Data Project since the IAEA Advisory Group meeting in December 1998. The group's future plans are also included. The ORNL Nuclear Data Project's responsibility includes the compilation/evaluation of astrophysics data, as well as the evaluation and compilation of nuclear structure data. The Nuclear Data Project, therefore, is composed of two groups. The Nuclear Data Project staff through September 2000 is listed below. Accomplishments for the period of October 1998 through September 2000 of the nuclear structure data group and the nuclear astrophysics group are submitted in this Nuclear Data Project report.

  18. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Luxembourg

    International Nuclear Information System (INIS)

    2008-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Framework: 1. General; 2. Mining; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Emergency measures); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; II. General Institutional Framework: 1. Regulatory and supervisory authorities (Minister of Health; Minister of Labour; Other Ministers competent); 2. Advisory bodies (Higher Health Council)

  19. New activities in nuclear power plants maintenance

    International Nuclear Information System (INIS)

    Mico, F.; Specht, J.

    2006-01-01

    This article addresses the consequences of the progressive deregulation of the electricity market of several key countries on the maintenance practices and techniques face to the growing pressures on O and M costs. The responses of the nuclear maintenance industry to make maintenance activities more efficient maintaining if not enhancing the safety of NPP's are briefly described. The article also analyses the potential impact of shortage of experience maintenance personnel to serve the NPP's in the future as some countries are already experiencing. (Author)

  20. Classification of permafrost active layer depth from remotely sensed and topographic evidence

    International Nuclear Information System (INIS)

    Peddle, D.R.; Franklin, S.E.

    1993-01-01

    The remote detection of permafrost (perennially frozen ground) has important implications to environmental resource development, engineering studies, natural hazard prediction, and climate change research. In this study, the authors present results from two experiments into the classification of permafrost active layer depth within the zone of discontinuous permafrost in northern Canada. A new software system based on evidential reasoning was implemented to permit the integrated classification of multisource data consisting of landcover, terrain aspect, and equivalent latitude, each of which possessed different formats, data types, or statistical properties that could not be handled by conventional classification algorithms available to this study. In the first experiment, four active layer depth classes were classified using ground based measurements of the three variables with an accuracy of 83% compared to in situ soil probe determination of permafrost active layer depth at over 500 field sites. This confirmed the environmental significance of the variables selected, and provided a baseline result to which a remote sensing classification could be compared. In the second experiment, evidence for each input variable was obtained from image processing of digital SPOT imagery and a photogrammetric digital elevation model, and used to classify active layer depth with an accuracy of 79%. These results suggest the classification of evidence from remotely sensed measures of spectral response and topography may provide suitable indicators of permafrost active layer depth

  1. Activities of the USSR Nuclear Data Center

    International Nuclear Information System (INIS)

    Usachev, L.M.; Popov, V.J.

    1972-01-01

    In any activity, one must start with the determination of its usefulness: in the field of nuclear data, this consists in the compilation of request lists, analogous to the RENDA list, issued in cooperation by the CCDN and the Nuclear Data Center of the N. D. S. At Obninsk, we have a somewhat different approach for our RENDA entries. We do not ask our reactor physicists to formulate their requests for concrete microscopic measurements or to share the requested accuracies between the different needed cross sections, because they are not really specialists in this field. We ask them to formulate their requirements, based on technical and economical considerations, for the tolerable uncertainties on the reactor parameters which are, of course, linked to the uncertainties on nuclear data. In addition, we ask them to give us the sensitivity coefficients for the values of reactor parameters as a function of modifications of the nuclear data. These sensitivity coefficients include all the needed information concerning the reactor in view of the determination of the requirements on nuclear data. The problem of the determination of the set of measurements necessary to obtain the reactor parameters with the required accuracies must, from our point of view be treated mathematically by specialists of the planification theory, working in close connection with specialists of microscopic data measurements and of integral experiments. In order to work out an optimal planing, it is necessary to evaluate the relative costs of the experiments; it is also essential to evaluate correctly the correlations between the uncertainties of the measurements and the estimation of their costs. Moreover, we may know all the information concerning the present accuracy on the measurements of a given type, first of all for a comparative evaluation of the costs of the experiments and, secondly, for drawing conclusions on the possible necessity for more accurate values by comparing the accuracies which

  2. Requirement and prospect of nuclear data activities for nuclear safety

    International Nuclear Information System (INIS)

    Kimura, Itsuro

    2000-01-01

    Owing to continuous efforts by the members of JNDC (Japanese Nuclear Data Committee) and Nuclear Data Center in JAERI (Japan Atomic Energy Research Institute), several superb evaluated nuclear data files, such as JENDL, FP (fission product) yields and decay heat, have been compiled in Japan and opened to the world. However, they are seldom adopted in safety design and safety evaluation of light water reactors and are hardly found in related safety regulatory guidelines and standards except the decay heat. In this report, shown are a few examples of presently used nuclear data in the safety design and the safety evaluation of PWRs (pressurized water reactors) and so forth. And then, several procedures are recommended in order to enhance more utilization of Japanese evaluated nuclear data files for nuclear safety. (author)

  3. Activities of nuclear human resource development in nuclear industry

    International Nuclear Information System (INIS)

    Tsujikura, Yonezo

    2010-01-01

    Since 2007, the JAIF (Japan Atomic Industrial Forum) had established the nuclear energy human resource development council to make analysis of the issue on nuclear human resource development. The author mainly contributed to develop its road map as a chairman of working group. Questionnaire survey to relevant parties on issues of nuclear human resource development had been conducted and the council identified the six relevant issues and ten recommendations. Both aspects for career design and skill-up program are necessary to develop nuclear human resource at each developing step and four respective central coordinating hubs should be linked to each sector participating in human resource development. (T. Tanaka)

  4. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Poland

    International Nuclear Information System (INIS)

    2015-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment (Licensing; Registration and monitoring of nuclear materials and radioactive sources; High activity sources); 4. Nuclear facilities (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiological protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (The President of the National Atomic Energy Agency - Prezes Panstwowej Agencji Atomistyki (President of the PAA); Minister of Health; Minister of the Environment); 2. Advisory bodies (Council for Nuclear Safety and Radiological Protection); 3. Public and semi-public bodies (Radioactive Waste Management Plant); 4. Research institutes (Central Laboratory for Radiological Protection; National Centre for Nuclear Research; Institute of Nuclear Physics; Institute of Nuclear Chemistry and Technology; Institute of Plasma Physics and Laser Microfusion)

  5. Activity classification based on inertial and barometric pressure sensors at different anatomical locations.

    Science.gov (United States)

    Moncada-Torres, A; Leuenberger, K; Gonzenbach, R; Luft, A; Gassert, R

    2014-07-01

    Miniature, wearable sensor modules are a promising technology to monitor activities of daily living (ADL) over extended periods of time. To assure both user compliance and meaningful results, the selection and placement site of sensors requires careful consideration. We investigated these aspects for the classification of 16 ADL in 6 healthy subjects under laboratory conditions using ReSense, our custom-made inertial measurement unit enhanced with a barometric pressure sensor used to capture activity-related altitude changes. Subjects wore a module on each wrist and ankle, and one on the trunk. Activities comprised whole body movements as well as gross and dextrous upper-limb activities. Wrist-module data outperformed the other locations for the three activity groups. Specifically, overall classification accuracy rates of almost 93% and more than 95% were achieved for the repeated holdout and user-specific validation methods, respectively, for all 16 activities. Including the altitude profile resulted in a considerable improvement of up to 20% in the classification accuracy for stair ascent and descent. The gyroscopes provided no useful information for activity classification under this scheme. The proposed sensor setting could allow for robust long-term activity monitoring with high compliance in different patient populations.

  6. Activity classification based on inertial and barometric pressure sensors at different anatomical locations

    International Nuclear Information System (INIS)

    Moncada-Torres, A; Leuenberger, K; Gassert, R; Gonzenbach, R; Luft, A

    2014-01-01

    Miniature, wearable sensor modules are a promising technology to monitor activities of daily living (ADL) over extended periods of time. To assure both user compliance and meaningful results, the selection and placement site of sensors requires careful consideration. We investigated these aspects for the classification of 16 ADL in 6 healthy subjects under laboratory conditions using ReSense, our custom-made inertial measurement unit enhanced with a barometric pressure sensor used to capture activity-related altitude changes. Subjects wore a module on each wrist and ankle, and one on the trunk. Activities comprised whole body movements as well as gross and dextrous upper-limb activities. Wrist-module data outperformed the other locations for the three activity groups. Specifically, overall classification accuracy rates of almost 93% and more than 95% were achieved for the repeated holdout and user-specific validation methods, respectively, for all 16 activities. Including the altitude profile resulted in a considerable improvement of up to 20% in the classification accuracy for stair ascent and descent. The gyroscopes provided no useful information for activity classification under this scheme. The proposed sensor setting could allow for robust long-term activity monitoring with high compliance in different patient populations. (paper)

  7. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - New Zealand

    International Nuclear Information System (INIS)

    2008-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive Substances and Equipment; 4. Nuclear installations; 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities - National Radiation Laboratory - NRL; 2. Advisory bodies - Radiation Protection Advisory Council; 3. Public and semi-public agencies - Research institutes

  8. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Iceland

    International Nuclear Information System (INIS)

    2008-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances and equipment; 4. Nuclear installations; 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear Third Party Liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Minister of Health and Social Security; Icelandic Radiation Protection Institute)

  9. A contextual image segmentation system using a priori information for automatic data classification in nuclear physics

    International Nuclear Information System (INIS)

    Benkirane, A.; Auger, G.; Chbihi, A.; Bloyet, D.; Plagnol, E.

    1994-01-01

    This paper presents an original approach to solve an automatic data classification problem by means of image processing techniques. The classification is achieved using image segmentation techniques for extracting the meaningful classes. Two types of information are merged for this purpose: the information contained in experimental images and a priori information derived from underlying physics (and adapted to image segmentation problem). This data fusion is widely used at different stages of the segmentation process. This approach yields interesting results in terms of segmentation performances, even in very noisy cases. Satisfactory classification results are obtained in cases where more ''classical'' automatic data classification methods fail. (authors). 25 refs., 14 figs., 1 append

  10. A contextual image segmentation system using a priori information for automatic data classification in nuclear physics

    Energy Technology Data Exchange (ETDEWEB)

    Benkirane, A; Auger, G; Chbihi, A [Grand Accelerateur National d` Ions Lourds (GANIL), 14 - Caen (France); Bloyet, D [Caen Univ., 14 (France); Plagnol, E [Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire

    1994-12-31

    This paper presents an original approach to solve an automatic data classification problem by means of image processing techniques. The classification is achieved using image segmentation techniques for extracting the meaningful classes. Two types of information are merged for this purpose: the information contained in experimental images and a priori information derived from underlying physics (and adapted to image segmentation problem). This data fusion is widely used at different stages of the segmentation process. This approach yields interesting results in terms of segmentation performances, even in very noisy cases. Satisfactory classification results are obtained in cases where more ``classical`` automatic data classification methods fail. (authors). 25 refs., 14 figs., 1 append.

  11. A neutron irradiator to perform nuclear activation

    International Nuclear Information System (INIS)

    Zamboni, C. B.; Zahn, G.S.; Figueredo, A. M. G.; Madi, T. F.; Yoriyaz, H.; Lima, R. B.; Shtejer, K.; Dalaqua Jr, L.

    2001-01-01

    The development of appropriate nuclear instrumentation to perform neutron activation analyze (NAA), using thermal and fast neutrons, can be useful to investigate materials outside the reactor premises. Considering this fact, a small size neutron irradiator prototype was developed at IPEN facilities (Instituto de Pesquisas Energeticas e Nucleares - Brazil). Basically, this prototype consists of a cylinder of 1200 mm long and 985 mm diameter (filled with paraffin) with two Am-Be sources (600GBq each) arranged in the longitudinal direction of its geometric center. The material to be irradiated is positioned at a radial direction of the cylinder between the two Am-Be sources. The main advantage of this irradiator is a very stable neutron flux eliminating the use of standard material (measure of the induced activity in the sample by comparative method). This way the process became agile, practical and economic, but quantities at mg levels of samples are necessary to achieve good sensitivity, when the material has a low microscopy neutron cross section. As fast and thermal neutron can be used, the flux distribution, for both, were calculated and the prototype performance is discussed

  12. Reviewing surveillance activities in nuclear power plants

    International Nuclear Information System (INIS)

    1989-03-01

    This document provides guidance to Operational Safety Review Teams (OSARTs) for reviewing surveillance activities at a nuclear power plant. In addition, the document contains reference material to support the review of surveillance activities, to assist within the Technical Support area and to ensure consistency between individual reviews. Drafts of the document have already been used on several OSART missions and found to be useful. The document first considers the objectives of an excellent surveillance programme. Investigations to determine the quality of the surveillance programme are then discussed. The attributes of an excellent surveillance programme are listed. Advice follows on how to phrase questions so as to obtain an informative response on surveillance features. Finally, specific equipment is mentioned that should be considered when reviewing functional tests. Four annexes provide examples drawn from operating nuclear power plants. They were selected to supplement the main text of the document with the best international practices as found in OSART reviews. They should in no way limit the acceptance and development of alternative approaches that lead to equivalent or better results. Refs, figs and tabs

  13. Sows’ activity classification device using acceleration data – A resource constrained approach

    DEFF Research Database (Denmark)

    Marchioro, Gilberto Fernandes; Cornou, Cécile; Kristensen, Anders Ringgaard

    2011-01-01

    This paper discusses the main architectural alternatives and design decisions in order to implement a sows’ activity classification model on electronic devices. The different possibilities are analyzed in practical and technical aspects, focusing on the implementation metrics, like cost......, performance, complexity and reliability. The target architectures are divided into: server based, where the main processing element is a central computer; and embedded based, where the processing is distributed on devices attached to the animals. The initial classification model identifies the activities...... of a heuristic classification approach, focusing on the resource constrained characteristics of embedded systems. The new approach classifies the activities performed by the sows with accuracy close to 90%. It was implemented as a hardware module that can easily be instantiated to provide preprocessed...

  14. On the classification of active and passive seawater intrusion

    Science.gov (United States)

    Werner, A. D.

    2017-12-01

    Active and passive seawater intrusion (SWI) arise when the freshwater head gradient slopes downwards towards land and the sea, respectively. However, a third category exists (i.e., passive-active SWI), whereby active SWI occurs inland of a mound in piezometric surface, whereas passive SWI occurs on the seaward side of the mound. In this study, numerical modelling is used to characterize the three forms of SWI, including an overview of the transient features of active SWI. While only simple cross-sectional representations of coastal aquifer settings are considered, the analysis provides guidance on some of the key attributes of each SWI class, as an extension to previous SWI research that offers limited differentiation between the various SWI types. Threshold parameter combinations for the onset of each form of SWI are provided, as derived from sharp-interface, steady-state analytical solutions. Dispersive aspects of SWI are then explored using numerical simulation. Important differences between the various forms of SWI include the salinization of the watertable that occurs under active SWI and in the absence of recharge, and the formation of persistent freshwater lenses in aquifers experiencing active SWI but also subject to surface recharge. Attempts to characterize transient active SWI processes, in terms of buoyancy, advective and dispersive processes, using dimensionless ratios that are drawn from previous studies of steady-state SWI, highlight the complex, nonlinear relationships that govern active SWI, even for idealized circumstances.

  15. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Greece

    International Nuclear Information System (INIS)

    2015-01-01

    In Greece, there are no nuclear power plants and nuclear energy is not considered as an option in the foreseeable future. There is, however, one nuclear research reactor (in extended shutdown since 2014) and one sub-critical assembly. Radioactive waste originating from medicine, research and industry is classified as low level. Although there is no framework act dealing comprehensively with the different aspects of nuclear energy, there are various laws, decrees and regulations of a more specific nature governing several aspects of nuclear activities. This paper gives information on the general regulatory regime (mining regime, radioactive substances, nuclear fuel and equipment, nuclear installations (licensing and inspection, including nuclear safety, emergency response, trade in nuclear materials and equipment, radiation protection, radioactive waste management, nuclear security, transport, nuclear third party liability) and on the institutional framework with the regulatory and supervisory authorities (Greek Atomic Energy Commission (EEAE))

  16. Summary of nuclear fuel reprocessing activities around the world

    International Nuclear Information System (INIS)

    Mellinger, P.J.; Harmon, K.M.; Lakey, L.T.

    1984-11-01

    This review of international practices for nuclear fuel reprocessing was prepared to provide a nontechnical summary of the current status of nuclear fuel reprocessing activities around the world. The sources of information are widely varied

  17. 1984 Act on nuclear activities (1984:3)

    International Nuclear Information System (INIS)

    1984-01-01

    This 1984 Act on Nuclear Activities (1984:3) replaces the 1956 Atomic Energy Act as well as the 1977 Act on special permits to charge nuclear reactors with nuclear fuel and the 1980 Act on Public Insight into the Safety Work at Nuclear Power Plants. Like the 1956 Act, the 1984 Act in a safety legislation, which is based on a system of licensing conditions and supervision. According to the fundamental provisions of the 1984 Act, nuclear activities should be conducted in such a way as to meet safety requirements and fulfil the obligations that follow from Sweden's international agreements for the purpose of preventing the proliferation of nuclear weapons. (NEA) [fr

  18. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Finland

    International Nuclear Information System (INIS)

    2008-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations; (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Ministry of Trade and Industry - KTM; Ministry of Social Affairs and Health; Ministry of the Interior; Ministry of the Environment; Ministry of Foreign Affairs); 2. Advisory bodies (Advisory Committee on Nuclear Energy; Advisory Committee on Nuclear Safety); 3. Public and semi-public agencies (Finnish Radiation and Nuclear Safety Authority - STUK; State Nuclear Waste Management Fund)

  19. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Czech Republic

    International Nuclear Information System (INIS)

    2008-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear items and spent fuel (Ionising radiation sources; Nuclear items; Spent fuel); 4. Nuclear installations (Licensing and inspection, including nuclear safety; Emergency response; Decommissioning); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (State Office for Nuclear Safety - SUJB; Ministry of Industry and Trade; Ministry of the Interior; Ministry of the Environment); 2. Public and semi-public agencies (CEZ, a.s.; National Radiation Protection Institute - NRPI; Radioactive Waste Repository Authority - RAWRA; Diamo; Nuclear Physics Institute - NPI; National Institute for Nuclear, Chemical and Biological Protection; Nuclear Research Institute Rez, a.s. - NRI)

  20. Nuclear safety regulation on nuclear safety equipment activities in relation to human and organizational factors

    International Nuclear Information System (INIS)

    Li Tianshu

    2013-01-01

    Based on years of knowledge in nuclear safety supervision and experience of investigating and dealing with violation events in repair welding of DFHM, this paper analyzes major faults in manufacturing and maintaining activities of nuclear safety equipment in relation to human and organizational factors. It could be deducted that human and organizational factors has definitely become key features in the development of nuclear energy and technology. Some feasible measures to reinforce supervision on nuclear safety equipment activities have also been proposed. (author)

  1. An overview on the activities of Pacific Nuclear Council

    International Nuclear Information System (INIS)

    Akiyama, Mamoru

    2003-01-01

    Pacific Nuclear Council (PNC) is a non-governmental organization (NGO) for cooperation and exchange of information on the nuclear science and technologies and its use in the Pacific basin countries to be established in November, 1989. The charter members are Canadian Nuclear Society, Canada Nuclear Association, Atomic Energy Society of Japan, Japan Atomic Industrial Forum, Inc., Korea Atomic Industrial Forum, Inc., and Mexico Nuclear Society. The activities of PNC are stated as followings; a charter, rules, objects, construction, management, activities for a member organization, Pacific Basin Nuclear Conference, foreign activities, social trend as back ground and future activities. As the activities for a member organization, eight working groups such as training of people, nuclear safety, public acceptances, reorganization of system, control of radioactive waste, public information and out reach, next generation reactor and rules and standards had been worked and the last four groups are working now. (S.Y.)

  2. Quantification of the spatial organization of the nuclear lamina as a tool for cell classification

    NARCIS (Netherlands)

    Righolt, C.H.; Zatreanu, D.A.; Raz, V.

    2013-01-01

    The nuclear lamina is the structural scaffold of the nuclear envelope that plays multiple regulatory roles in chromatin organization and gene expression as well as a structural role in nuclear stability. The lamina proteins, also referred to as lamins, determine nuclear lamina organization and

  3. Basic principles for regulating nuclear activities

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    The AECB has developed as its mission statement: `To ensure that the use of nuclear energy in Canada does not pose undue risk to health, safety, security and the environment`. This report proposes eleven qualitative principles for regulating nuclear activities whose achievement would satisfy the broad policy enunciated in the statement. They would further provide a basis for the specific regulatory requirements expressed by the AECB in its Regulations and other documents. They would thus represent a connecting link between the policy enunciated in the mission statement and the requirements. The proposed principles are largely concerned with how the allowable risk should be set for members of the public, for industry workers, for society as a whole, and for the environment. In making these recommendations the risks from normal operation of the licensed facility and those from a possible serious accident are considered separately. The distribution of risk between geographic communities and between generations is also addressed in the proposed principles. These are listed in the final section of the report. 23 refs.

  4. Basic principles for regulating nuclear activities

    International Nuclear Information System (INIS)

    1996-03-01

    The AECB has developed as its mission statement: 'To ensure that the use of nuclear energy in Canada does not pose undue risk to health, safety, security and the environment'. This report proposes eleven qualitative principles for regulating nuclear activities whose achievement would satisfy the broad policy enunciated in the statement. They would further provide a basis for the specific regulatory requirements expressed by the AECB in its Regulations and other documents. They would thus represent a connecting link between the policy enunciated in the mission statement and the requirements. The proposed principles are largely concerned with how the allowable risk should be set for members of the public, for industry workers, for society as a whole, and for the environment. In making these recommendations the risks from normal operation of the licensed facility and those from a possible serious accident are considered separately. The distribution of risk between geographic communities and between generations is also addressed in the proposed principles. These are listed in the final section of the report. 23 refs

  5. Classification of Active Microwave and Passive Optical Data Based on Bayesian Theory and Mrf

    Science.gov (United States)

    Yu, F.; Li, H. T.; Han, Y. S.; Gu, H. Y.

    2012-08-01

    A classifier based on Bayesian theory and Markov random field (MRF) is presented to classify the active microwave and passive optical remote sensing data, which have demonstrated their respective advantages in inversion of surface soil moisture content. In the method, the VV, VH polarization of ASAR and all the 7 TM bands are taken as the input of the classifier to get the class labels of each pixel of the images. And the model is validated for the necessities of integration of TM and ASAR, it shows that, the total precision of classification in this paper is 89.4%. Comparing with the classification with single TM, the accuracy increase 11.5%, illustrating that synthesis of active and passive optical remote sensing data is efficient and potential in classification.

  6. CLASSIFICATION OF ACTIVE MICROWAVE AND PASSIVE OPTICAL DATA BASED ON BAYESIAN THEORY AND MRF

    Directory of Open Access Journals (Sweden)

    F. Yu

    2012-08-01

    Full Text Available A classifier based on Bayesian theory and Markov random field (MRF is presented to classify the active microwave and passive optical remote sensing data, which have demonstrated their respective advantages in inversion of surface soil moisture content. In the method, the VV, VH polarization of ASAR and all the 7 TM bands are taken as the input of the classifier to get the class labels of each pixel of the images. And the model is validated for the necessities of integration of TM and ASAR, it shows that, the total precision of classification in this paper is 89.4%. Comparing with the classification with single TM, the accuracy increase 11.5%, illustrating that synthesis of active and passive optical remote sensing data is efficient and potential in classification.

  7. Advanced nuclear fuel cycles activities in IAEA

    International Nuclear Information System (INIS)

    Nawada, H.P.; Ganguly, C.

    2007-01-01

    Full text of publication follows. Of late several developments in reprocessing areas along with advances in fuel design and robotics have led to immense interest in partitioning and transmutation (P and T). The R and D efforts in the P and T area are being paid increased attention as potential answers to ever-growing issues threatening sustainability, environmental protection and non-proliferation. Any fuel cycle studies that integrate partitioning and transmutation are also known as ''advanced fuel cycles'' (AFC), that could incinerate plutonium and minor actinide (MA) elements (namely Am, Np, Cm, etc.) which are the main contributors to long-term radiotoxicity. The R and D efforts in developing these innovative fuel cycles as well as reactors are being co-ordinated by international initiatives such as Innovative Nuclear Power Reactors and Fuel Cycles (INPRO), the Generation IV International Forum (GIF) and the Global Nuclear Energy Partnership (GENP). For these advanced nuclear fuel cycle schemes to take shape, the development of liquid-metal-cooled reactor fuel cycles would be the most essential step for implementation of P and T. Some member states are also evaluating other concepts involving the use of thorium fuel cycle or inert-matrix fuel or coated particle fuel. Advanced fuel cycle involving novel partitioning methods such as pyrochemical separation methods to recover the transuranic elements are being developed by some member states which would form a critical stage of P and T. However, methods that can achieve a very high reduction (>99.5%) of MA and long-lived fission products in the waste streams after partitioning must be achieved to realize the goal of an improved protection of the environment. In addition, the development of MA-based fuel is also an essential and crucial step for transmutation of these transuranic elements. The presentation intends to describe progress of the IAEA activities encompassing the following subject-areas: minimization of

  8. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Australia

    International Nuclear Information System (INIS)

    2008-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I) - General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection (Bilateral safeguards agreements; International Atomic Energy Agency Safeguards Agreement; The South Pacific Nuclear Free Zone Treaty Act; The Comprehensive Nuclear Test-Ban Treaty Act; The Nuclear Non-Proliferation (Safeguards) Act); 9. Transport; 10. Nuclear third party liability; II) - Institutional Framework: 1. Regulatory and supervisory authorities (Minister for Health and Ageing; Minister for Foreign Affairs; Minister for the Environment, Heritage and the Arts; Minister for, Resources, Energy and Tourism); 2. Advisory bodies (Radiation Health and Safety Advisory Council; Advisory Committees); 3. Public and semi-public agencies (Australian Radiation Protection and Nuclear Safety Agency (ARPANSA); Australian Safeguards and Non-Proliferation Office; Australian Nuclear Science and Technology Organisation (ANSTO); Supervising Scientist)

  9. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities. Japan

    International Nuclear Information System (INIS)

    2017-01-01

    The NEA has updated, in coordination with the Permanent Delegation of Japan to the OECD, the report on the Regulatory and Institutional Framework for Nuclear Activities in Japan. This country report provides comprehensive information on the regulatory and institutional framework governing nuclear activities in Japan. It provides a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. Content: I - General Regulatory Regime: Introduction; Mining regime; Radioactive substances and equipment; Nuclear installations (Reactor Regulation, Emergency response); Trade in nuclear materials and equipment; Radiological protection; Radioactive waste management; Nuclear safeguards and nuclear security; Transport; Nuclear third party liability. II - Institutional Framework: Regulatory and supervisory authorities (Cabinet Office, Nuclear Regulation Authority (NRA), Ministry of Economy, Trade and Industry (METI), The Agency for Natural Resources and Energy (ANRE), Ministry of Land, Infrastructure, Transport and Tourism (MLIT), Ministry of Education, Culture, Sports, Science and Technology (MEXT)); Advisory bodies (Atomic Energy Commission (AEC), Reactor Safety Examination Committee, Nuclear Fuel Safety Examination Committee, Radiation Council, Other advisory bodies); Public and semi-public agencies (Japan Atomic Energy Agency (JAEA), National Institutes for Quantum and Radiological Science and Technology (QST), Nuclear Damage Compensation and Decommissioning Facilitation Corporation (NDF), Nuclear Waste Management Organisation (NUMO))

  10. Nuclear air cleaning activities in Germany

    International Nuclear Information System (INIS)

    Wilhelm, J.

    1991-01-01

    The discussion is limited to nuclear air cleaning activities in the Federal Republic of Germany. Work is underway on containment venting with regard to filtration based on a combination of stainless steel roughing and fine filters with a decontamination factor similar to or better than that achieved with high-efficiency particulate air filters. The main point of interest is the development of relatively small filter units that can be located inside the containment. The concept of a new design for double containment having annular rooms between the steel containment and the concrete containment is discussed. Work related to the dismantling of decommissioned reactors and limited research for fuel reprocessing facilities are also noted

  11. Classification of emotions by multivariate analysis and individual differences of nuclear power plant operators' emotion

    International Nuclear Information System (INIS)

    Hasegawa, Naoko; Yoshimura, Seiichi

    1999-01-01

    The purpose of this study is the development of a simulation model which expresses operators' emotion under plant emergency. This report shows the classification of emotions by multivariate analysis and investigation results conducted to clarify individual differences of activated emotion influenced by personal traits. Although a former investigation was conducted to classify emotions into five basic emotions proposed by Johnson-Laird, the basic emotions was not based on real data. For the development of more realistic and accurate simulation model, it is necessary to recognize basic emotion and to classify emotions into them. As a result of analysis by qualification method 3 and cluster analysis, four basic clusters were clarified, i.e., Emotion expressed towards objects, Emotion affected by objects, Pleasant emotion, and Surprise. Moreover, 51 emotions were ranked in the order according to their similarities in each cluster. An investigation was conducted to clarify individual differences in emotion process using 87 plant operators. The results showed the differences of emotion depending on the existence of operators' foresight, cognitive style, experience in operation, and consciousness of attribution to an operating team. For example, operators with low self-efficacy, short experience or low consciousness of attribution to a team, feel more intensive emotion under plant emergency and more affected by severe plant conditions. The model which can express individual differences will be developed utilizing and converting these data hereafter. (author)

  12. Classification of emotions by multivariate analysis and individual differences of nuclear power plant operators` emotion

    Energy Technology Data Exchange (ETDEWEB)

    Hasegawa, Naoko; Yoshimura, Seiichi [Central Research Inst. of Electric Power Industry, Tokyo (Japan)

    1999-03-01

    The purpose of this study is the development of a simulation model which expresses operators` emotion under plant emergency. This report shows the classification of emotions by multivariate analysis and investigation results conducted to clarify individual differences of activated emotion influenced by personal traits. Although a former investigation was conducted to classify emotions into five basic emotions proposed by Johnson-Laird, the basic emotions was not based on real data. For the development of more realistic and accurate simulation model, it is necessary to recognize basic emotion and to classify emotions into them. As a result of analysis by qualification method 3 and cluster analysis, four basic clusters were clarified, i.e., Emotion expressed towards objects, Emotion affected by objects, Pleasant emotion, and Surprise. Moreover, 51 emotions were ranked in the order according to their similarities in each cluster. An investigation was conducted to clarify individual differences in emotion process using 87 plant operators. The results showed the differences of emotion depending on the existence of operators` foresight, cognitive style, experience in operation, and consciousness of attribution to an operating team. For example, operators with low self-efficacy, short experience or low consciousness of attribution to a team, feel more intensive emotion under plant emergency and more affected by severe plant conditions. The model which can express individual differences will be developed utilizing and converting these data hereafter. (author)

  13. ANALYTiC: An Active Learning System for Trajectory Classification.

    Science.gov (United States)

    Soares Junior, Amilcar; Renso, Chiara; Matwin, Stan

    2017-01-01

    The increasing availability and use of positioning devices has resulted in large volumes of trajectory data. However, semantic annotations for such data are typically added by domain experts, which is a time-consuming task. Machine-learning algorithms can help infer semantic annotations from trajectory data by learning from sets of labeled data. Specifically, active learning approaches can minimize the set of trajectories to be annotated while preserving good performance measures. The ANALYTiC web-based interactive tool visually guides users through this annotation process.

  14. Karlsruhe nuclear research center. Main activities

    International Nuclear Information System (INIS)

    The article reports on problems of securing the fuel supply for nuclear power generation, on reprocessing and ultimate storage of radioactive material, on the safety of nuclear facilities, on new technologies and basic research, and on the infrastructure of the Karlsruhe nuclear research center, as well as finance and administration. (HK) [de

  15. BATAN Activities in Developing Nuclear Knowledge Management

    International Nuclear Information System (INIS)

    Darmawati, S.

    2016-01-01

    Full text: BATAN (National Atomic Energy Agency of Indonesia) was established in 1964, and after the issuance of Law 10 of 1997 it become National Nuclear Energy Agency. During the last seven years, BATAN has suffered the loss of many of its valuable human resources due to the zero-growth policy of the government in recruiting new staffs. The uncertain future of nuclear power programme in Indonesia has also reduced the interest of young generation to study nuclear related subjects, resulting in the closing of several departments in universities that once offered nuclear sciences as subject of studies. These situations triggered management of BATAN to develop various efforts to keep nuclear knowledge exist and disseminate among BATAN itself, university students, and public as a whole. BATAN has in recent years established higher school of nuclear technology and organized various nuclear related training programmes, and also in cooperation with other governmental organizations establish nuclear zones, nuclear information centres and nuclear corners in public as well as in high school areas throughout Indonesia. All these efforts are aimed to transfer and preserve nuclear knowledge for the better future of the applications of nuclear science and technology in Indonesia. (author

  16. Public acceptance (PA) activities of nuclear power in Japan

    International Nuclear Information System (INIS)

    Yamada, Masafumi; Iguchi, Tatsuro

    1993-10-01

    At the first part of presentation present status of nuclear power development in Japan is described. Then results of poll on nuclear energy acceptance by population are analyzed. Further, current activities and future efforts directed to broad understanding by people benefits of nuclear energy are described. 6 figs

  17. Reorganization and redimensioning of nuclear activities in Venezuela

    International Nuclear Information System (INIS)

    1984-02-01

    This paper is of a self-critical nature, beginning with a retrospective look at nuclear activities in Venezuela. An inventory of human resources, materials and existing techniques is also made. National nuclear policies and developments are examined pointing out failures and successes. Finally, conclusions are presented about the technical assistance received from international organizations in research, nuclear safety and technological development

  18. 78 FR 57870 - Agency Information Collection Activities: Registration for Classification as Refugee; Revision of...

    Science.gov (United States)

    2013-09-20

    ...-0068; Form I-590] Agency Information Collection Activities: Registration for Classification as Refugee... applicants to apply for refugee status and contains the information needed for USCIS to adjudicate such..., Sworn Statement of Refugee Applying for Admission into the United States. These questions assist USCIS...

  19. Methodical approaches to development of classification state methods of regulation business activity in fishery

    OpenAIRE

    She Son Gun

    2014-01-01

    Approaches to development of classification of the state methods of regulation of economy are considered. On the basis of the provided review the complex method of state regulation of business activity is reasonable. The offered principles allow improving public administration and can be used in industry concepts and state programs on support of small business in fishery.

  20. Nuclear technology for sustainable development and FNCA activities

    International Nuclear Information System (INIS)

    Machi, Sueo

    2004-01-01

    Nuclear techniques have been contributing to sustainable development and human welfare through their applications in agriculture, health care, food supply, industry, water resources and environmental conservation. Nuclear techniques are more advantageous and/or complementary with other techniques to achieve goals. For many applications nuclear technique is more environmentally friendly because it does not need chemical agents to induce necessary reactions. This paper also illustrates successful applications of nuclear techniques and activities of the regional nuclear cooperation in Asia, FNCA (Forum for Nuclear Cooperation in Asia) to achieve common goals with limited resources. (author)

  1. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Sweden

    International Nuclear Information System (INIS)

    2008-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects (The Environmental Code, Environmental impact statement, Permit under the Environmental Code)); 5. Trade in nuclear materials and equipment; 6. Radiological protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability (The Nuclear Liability Act; Chernobyl legislation); II. Institutional Framework: 1. Ministries with responsibilities concerning nuclear activities (Ministry of the Environment; Ministry of Enterprise, Energy and Communications; Ministry of Justice; Ministry of Foreign Affairs); 2. Swedish Radiation Safety Authority

  2. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Mexico

    International Nuclear Information System (INIS)

    2009-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; 11. Nuclear terrorism; II. Institutional Framework - The federal government: 1. Regulatory and supervisory authorities (Ministry of Energy; Ministry of Health; Ministry of Labour and Social Security; Ministry of the Environment and Natural Resources; Ministry of Communications and Transport); 2. Public and semi-public agencies: (National Nuclear Safety and Safeguards Commission; National Nuclear Research Institute)

  3. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Slovenia

    International Nuclear Information System (INIS)

    2013-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in nuclear materials and equipment; 6. Safeguards for nuclear material; 7. Radiation protection; 8. Radioactive waste management; 9. Nuclear security; 10. Transport; 11. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Slovenian Nuclear Safety Administration - SNSA; Slovenian Radiation Protection Administration - SRPA); 2. Advisory bodies; 3. Public and semi-public agencies; 4. Technical support organisations - approved experts

  4. Evaluation of the Retrieval of Nuclear Science Document References Using the Universal Decimal Classification as the Indexing Language for a Computer-Based System

    Science.gov (United States)

    Atherton, Pauline; And Others

    A single issue of Nuclear Science Abstracts, containing about 2,300 abstracts, was indexed by Universal Decimal Classification (UDC) using the Special Subject Edition of UDC for Nuclear Science and Technology. The descriptive cataloging and UDC-indexing records formed a computer-stored data base. A systematic random sample of 500 additional…

  5. Overview of nuclear data activities at the OECD Nuclear Energy Agency

    International Nuclear Information System (INIS)

    Michel-Sendis, F.; Dupont, E.; Gulliford, J.; Nordborg, G.

    2011-01-01

    The Nuclear Energy Agency (NEA) is a specialised agency within the Organisation for Economic Co-operation and Development (OECD). The mission of the NEA is to assist its member countries in maintaining and further developing, through international co-operation, the scientific, technological and legal bases required for the safe, environmentally friendly and economical use of nuclear energy for peaceful purposes. All activities relevant to nuclear data measurements, evaluations and applications are managed by the NEA Nuclear Science Committee through the Nuclear Science section and the Data Bank, which work closely together. This paper gives an overview of current and planned nuclear data activities at the Nuclear Energy Agency through the program of work of the Data Bank in general and of the NEA Working Party on international nuclear data Evaluation Co-operation (WPEC) in particular. (authors)

  6. The Current Status and Implications of Nuclear Energy Cultural Activities

    International Nuclear Information System (INIS)

    Kim, Dong Won

    2006-01-01

    The Korean nuclear energy community paid a high price in terms of the tremendous social costs incurred in the process of securing a site for mid-to-low radioactive waste disposal facility, indicating that interest in the technical danger of nuclear energy has spread to the realm of people's daily lives. Under the circumstances it is important to raise rational public awareness of nuclear science as a foundation of everyday life through nuclear cultural activities. This study examines the various types of public relations activities of the Korea Nuclear Energy Foundation, an organization in charge of promoting nuclear energy, and explores what activities are required to ensure efficient promotion in accordance with development of nuclear culture

  7. Nuclear power company activity based costing management analysis

    International Nuclear Information System (INIS)

    Xu Dan

    2012-01-01

    With Nuclear Energy Industry development, Nuclear Power Company has the continual promoting stress of inner management to the sustainable marketing operation development. In view of this, it is very imminence that Nuclear Power Company should promote the cost management levels and built the nuclear safety based lower cost competitive advantage. Activity based costing management (ABCM) transfer the cost management emphases from the 'product' to the 'activity' using the value chain analysis methods, cost driver analysis methods and so on. According to the analysis of the detail activities and the value chains, cancel the unnecessary activity, low down the resource consuming of the necessary activity, and manage the cost from the source, achieve the purpose of reducing cost, boosting efficiency and realizing the management value. It gets the conclusion from the detail analysis with the nuclear power company procedure and activity, and also with the selection to 'pieces analysis' of the important cost related project in the nuclear power company. The conclusion is that the activities of the nuclear power company has the obviously performance. It can use the management of ABC method. And with the management of the procedure and activity, it is helpful to realize the nuclear safety based low cost competitive advantage in the nuclear power company. (author)

  8. Nuclear knowledge portal for supporting licensing and controlling nuclear activities in the Brazilian Nuclear Energy Commission

    International Nuclear Information System (INIS)

    Gomes, E.; Braga, F.

    2005-01-01

    The knowledge economy is pivotal for moving the wealth and development of traditional industrial sectors - abundant in manual labour, raw materials and capital - to areas whose products, processes and services are rich in technology and knowledge. Even in research areas such as nuclear energy, where goods are based on high technology, the ability to transform information into knowledge, and knowledge into decisions and actions, is extremely important. Therefore, the value of products from these areas depends more and more on the degree of innovation, technology and intelligence incorporated by them. Thus, it has become increasingly important and relevant to acquire strategic knowledge and make it available to the organisation. Therefore, the objective of this paper is to present the construction of a Nuclear Knowledge Portal for aiding and streamlining the Licensing and Management activities of the CNEN. (author)

  9. Nuclear knowledge portal to support licensing and control nuclear activities in the Brazilian Nuclear Energy Commission

    International Nuclear Information System (INIS)

    Gomes, M.E.; Braga, M.F.

    2004-01-01

    The Knowledge Economy is pivotal for moving the wealth and development of traditional industrial sectors - abundant in manual labor, raw materials and capital - to areas whose products, processes and services are rich in technology and knowledge. Even in research areas such as nuclear energy, where goods are based on high technology, the ability to transform information into knowledge, and knowledge into decisions and actions, is extremely important. Therefore, the value of products from these areas depends more and more on the degree of innovation, technology and intelligence incorporated by them. Thus, it has become increasingly important and relevant to acquire strategic knowledge and make it available to the organization. Therefore, the objective of this article is to present the construction of a Nuclear Knowledge Portal for aiding and streamlining the Licensing and Management activities of the CNEN. (author)

  10. IAEA activities in nuclear safety: future perspectives. Spanish Nuclear Safety Council, Madrid, 28 May 1998

    International Nuclear Information System (INIS)

    ElBaradei, M.

    1998-01-01

    The document represents the conference given by the Director General of the IAEA at the Spanish Nuclear Safety Council in Madrid, on 28 May 1998, on Agency's activities in nuclear safety. The following aspects are emphasized: Agency's role in creating a legally binding nuclear safety regime, non-binding safety standards, services provided by the Agency to assist its Member States in the Application of safety standards, Agency's nuclear safety strategy, and future perspective concerning safety aspects related to radioactive wastes, residues of past nuclear activities, and security of radiological sources

  11. Nuclear knowledge portal to support licensing and control nuclear activities in the Brazilian Nuclear Energy Commission

    International Nuclear Information System (INIS)

    Gomes, Elizabeth; Braga, Fabiane

    2004-01-01

    importance of keeping the intellectual capital in the organizations that is to work with the knowledge from the collaborators. In Brazil still have many authors that discusses this concept and we adopt for this paper the definition form Cavalcanti where is the concept 'intellectual capital' refers either to the capacity, ability or experience, as well as to the formal education that the collaborators members have and add to the Organization. The 'intellectual capital' is an intangible asset, which belongs to the individual himself, thus it might be utilized by the organizations in order to generate value. The development and preservation of this intellectual capital is made through the implementation of forums of discussion, workshops or knowledge portals where the organization's collaborators share their experiences. Nevertheless, to assimilate and to develop the 'intellectual capital' does not add value to the organization: It is necessary to keep it. And one way to do so is to create desirable and encouraging work environments, to promote a sharing management and to offer programs of profits sharing. The objective of this paper is to describe how Brazilian Nuclear Energy Commission - CNEN has been developing a nuclear knowledge portal, focused in the Radiation and Safety Nuclear area. The Brazilian Nuclear Energy Commission (CNEN) is a federal autarchy created in October 10 of 1956, as a superior agency of planning, guiding, supervision and inspection in nuclear area being also the body entitled to establish standards and regulations on radiological protection, to issue licenses (permissions) and to survey and control the nuclear activities in Brazil. CNEN also develops researches related to the use of nuclear techniques in benefit of the society. The Radiation and Safety Nuclear directorate of CNEN acts, mainly, in the licensing of nuclear and radioactive installations. The people who work at this area recognize the importance of management and sharing the accumulated

  12. An Active Learning Framework for Hyperspectral Image Classification Using Hierarchical Segmentation

    Science.gov (United States)

    Zhang, Zhou; Pasolli, Edoardo; Crawford, Melba M.; Tilton, James C.

    2015-01-01

    Augmenting spectral data with spatial information for image classification has recently gained significant attention, as classification accuracy can often be improved by extracting spatial information from neighboring pixels. In this paper, we propose a new framework in which active learning (AL) and hierarchical segmentation (HSeg) are combined for spectral-spatial classification of hyperspectral images. The spatial information is extracted from a best segmentation obtained by pruning the HSeg tree using a new supervised strategy. The best segmentation is updated at each iteration of the AL process, thus taking advantage of informative labeled samples provided by the user. The proposed strategy incorporates spatial information in two ways: 1) concatenating the extracted spatial features and the original spectral features into a stacked vector and 2) extending the training set using a self-learning-based semi-supervised learning (SSL) approach. Finally, the two strategies are combined within an AL framework. The proposed framework is validated with two benchmark hyperspectral datasets. Higher classification accuracies are obtained by the proposed framework with respect to five other state-of-the-art spectral-spatial classification approaches. Moreover, the effectiveness of the proposed pruning strategy is also demonstrated relative to the approaches based on a fixed segmentation.

  13. Ambulatory activity classification with dendogram-based support vector machine: Application in lower-limb active exoskeleton.

    Science.gov (United States)

    Mazumder, Oishee; Kundu, Ananda Sankar; Lenka, Prasanna Kumar; Bhaumik, Subhasis

    2016-10-01

    Ambulatory activity classification is an active area of research for controlling and monitoring state initiation, termination, and transition in mobility assistive devices such as lower-limb exoskeletons. State transition of lower-limb exoskeletons reported thus far are achieved mostly through the use of manual switches or state machine-based logic. In this paper, we propose a postural activity classifier using a 'dendogram-based support vector machine' (DSVM) which can be used to control a lower-limb exoskeleton. A pressure sensor-based wearable insole and two six-axis inertial measurement units (IMU) have been used for recognising two static and seven dynamic postural activities: sit, stand, and sit-to-stand, stand-to-sit, level walk, fast walk, slope walk, stair ascent and stair descent. Most of the ambulatory activities are periodic in nature and have unique patterns of response. The proposed classification algorithm involves the recognition of activity patterns on the basis of the periodic shape of trajectories. Polynomial coefficients extracted from the hip angle trajectory and the centre-of-pressure (CoP) trajectory during an activity cycle are used as features to classify dynamic activities. The novelty of this paper lies in finding suitable instrumentation, developing post-processing techniques, and selecting shape-based features for ambulatory activity classification. The proposed activity classifier is used to identify the activity states of a lower-limb exoskeleton. The DSVM classifier algorithm achieved an overall classification accuracy of 95.2%. Copyright © 2016 Elsevier B.V. All rights reserved.

  14. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Japan

    International Nuclear Information System (INIS)

    2011-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Cabinet Office; Minister of Economy, Trade and Industry - METI; Minister of Land, Infrastructure and Transport - MLIT; Minister of Education, Culture, Sports, Science and Technology - MEXT); 2. Advisory bodies (Atomic Energy Commission - AEC; Nuclear Safety Commission - NSC; Radiation Council; Special Committee on Energy Policy; Other advisory bodies); 3. Public and Semi-Public Agencies (Japan Atomic Energy Agency - JAEA)

  15. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Norway

    International Nuclear Information System (INIS)

    2001-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining Regime; 3. Radioactive Substances, Nuclear Fuel and Equipment; 4. Nuclear Installations (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in Nuclear Materials and Equipment (Trade governed by nuclear energy legislation; Trade governed by radiation protection legislation; Trade governed by export/import control legislation); 6. Radiation Protection; 7. Radioactive Waste Management; 8. Non-Proliferation and Physical Protection; 9. Transport; 10. Nuclear Third Party Liability; II. Institutional Framework: 1. Regulatory and Supervisory Authorities: A. Ministerial Level (Ministry of Health and Social Affairs; Ministry of Trade and Industry; Ministry of Foreign Affairs; Other Ministries); B. Subsidiary Level: (The Norwegian Radiation Protection Authority - NRPA; The Norwegian Nuclear Emergency Organisation); 2. Public and Semi-Public Agencies - Institute for Energy Technology - IFE

  16. Nuclear power plants - active environment protection|

    International Nuclear Information System (INIS)

    Aegerter, I.

    1987-01-01

    The Federal Commission, which is studying energy scenarios, will doubtlessly come to the conclusion that a withdrawal from nuclear energy is technically and economically feasible. Feasibility alone however is no justification for action. Have the questions been asked correctly by the parliamentarians? Are the real problems being bypassed? Is the demand for a withdrawal from nuclear energy soundly based? Is it not oversimplified? Many people are afraid of nuclear energy because they do not understand it. It is necessary that specialists formulate their ideas so that the layman can easily understand them. The broad public can be educated to lose their fear of nuclear power plants which they compare with the nuclear bombs. They can also be educated to lose their fear of radioactivity. The public should also realize that the CO 2 problem is actual and very serious, and that nuclear energy can in fact help to alleviate this particular problem. 7 refs., 2 figs., 1 tab

  17. Nuclear power plant construction activity, 1986

    International Nuclear Information System (INIS)

    1987-01-01

    Cost estimates, chronological data on construction progress, and the physical characteristics of nuclear units in commercial operation and units in the construction pipeline as of December 31, 1986, are presented. This report, which is updated annually, was prepared to provide an overview of the nuclear power plant construction industry. The report contains information on the status of nuclear generating units, average construction costs and lead-times, and construction milestones for individual reactors

  18. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - France

    International Nuclear Information System (INIS)

    2011-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Framework: 1. General (The French nuclear power programme and its main players; French nuclear law); 2. Mining Regime; 3. Radioactive Substances and Nuclear Equipment (Regulatory diversity; Radioactive sources; Medical activities); 4. Trade in Nuclear Materials and Equipment (Basic nuclear installations - INB; Tax on basic nuclear installations, Additional taxes, Funding nuclear costs; Installations classified for environmental protection purposes (ICPE) using radioactive substances; Nuclear pressure equipment - ESPN; Defence-related nuclear installations and activities - IANID; Emergency plans); 5. Trade in Nuclear Materials and Equipment (General provisions; Patents); 6. Radiation protection (Protection of the public; Protection of workers; Radiation protection inspectors; Labour inspectors; Protection of individuals in a radiological emergency); 7. Radioactive Waste Management (General regulations; Radioactive waste regulations; Discharge of effluents); 8. Non-proliferation and physical protection (Materials not used for the nuclear deterrent; Materials used for the nuclear deterrent); 9. Transport (Licensing and notification regime: Transport of radioactive materials, Transport of nuclear materials, Transport of radioactive substances between member states of the European Union; Methods of transport: Land transport, Sea transport, Air transport, Transport by post); 10

  19. Robust Sounds of Activities of Daily Living Classification in Two-Channel Audio-Based Telemonitoring

    Directory of Open Access Journals (Sweden)

    David Maunder

    2013-01-01

    Full Text Available Despite recent advances in the area of home telemonitoring, the challenge of automatically detecting the sound signatures of activities of daily living of an elderly patient using nonintrusive and reliable methods remains. This paper investigates the classification of eight typical sounds of daily life from arbitrarily positioned two-microphone sensors under realistic noisy conditions. In particular, the role of several source separation and sound activity detection methods is considered. Evaluations on a new four-microphone database collected under four realistic noise conditions reveal that effective sound activity detection can produce significant gains in classification accuracy and that further gains can be made using source separation methods based on independent component analysis. Encouragingly, the results show that recognition accuracies in the range 70%–100% can be consistently obtained using different microphone-pair positions, under all but the most severe noise conditions.

  20. Classification of ECG beats using deep belief network and active learning.

    Science.gov (United States)

    G, Sayantan; T, Kien P; V, Kadambari K

    2018-04-12

    A new semi-supervised approach based on deep learning and active learning for classification of electrocardiogram signals (ECG) is proposed. The objective of the proposed work is to model a scientific method for classification of cardiac irregularities using electrocardiogram beats. The model follows the Association for the Advancement of medical instrumentation (AAMI) standards and consists of three phases. In phase I, feature representation of ECG is learnt using Gaussian-Bernoulli deep belief network followed by a linear support vector machine (SVM) training in the consecutive phase. It yields three deep models which are based on AAMI-defined classes, namely N, V, S, and F. In the last phase, a query generator is introduced to interact with the expert to label few beats to improve accuracy and sensitivity. The proposed approach depicts significant improvement in accuracy with minimal queries posed to the expert and fast online training as tested on the MIT-BIH Arrhythmia Database and the MIT-BIH Supra-ventricular Arrhythmia Database (SVDB). With 100 queries labeled by the expert in phase III, the method achieves an accuracy of 99.5% in "S" versus all classifications (SVEB) and 99.4% accuracy in "V " versus all classifications (VEB) on MIT-BIH Arrhythmia Database. In a similar manner, it is attributed that an accuracy of 97.5% for SVEB and 98.6% for VEB on SVDB database is achieved respectively. Graphical Abstract Reply- Deep belief network augmented by active learning for efficient prediction of arrhythmia.

  1. Instituto de Asuntos Nucleares. Report of Activities 1989

    International Nuclear Information System (INIS)

    1989-01-01

    It is a summary of the technical activities carried out by the Instituto de Asuntos Nucleares, Bogota, Colombia, during 1989. It includes activities in topics as: research projects, transfer of technology, scientific information, qualification and training programs, mainly, which were done in areas like: agriculture, industrial applications, medicine, radiation protection, hydrology, nuclear technology development, radiochemistry and physics, among others

  2. Safety surveillance of activities on nuclear pressure components in China

    International Nuclear Information System (INIS)

    Li Ganjie; Li Tianshu; Yan Tianwen

    2005-01-01

    The nuclear pressure components, which perform the nuclear safety functions, are one of the key physical barriers for nuclear safety. For the national strategy on further development of nuclear power and localization of nuclear pressure components, there still exist some problems in preparedness on the localization. As for the technical basis, what can not be overlooked is the management. Aiming at the current problems, National Nuclear Safety Administration (NNSA) has taken measures to strengthen the propagation and popularization of nuclear safety culture, adjust the review and approval policies for nuclear pressure components qualification license, establish more stringent management requirements, and enhance the surveillance of activities on nuclear pressure equipment. Meanwhile, NNSA has improved the internal management and the regulation efficiency on nuclear pressure components. At the same time, with the development and implementation of 'Rules on the Safety Regulation for Nuclear Safety Important Components' to be promulgated by the State Council of China, NNSA will complete and improve the regulation on nuclear pressure components and other nuclear equipment. (authors)

  3. Application of United Nations Framework Classification – 2009 (UNFC-2009) to nuclear fuel resources

    International Nuclear Information System (INIS)

    Tulsidas, Harikrishnan; Li Shengxiang; Van Gosen, Bradley

    2014-01-01

    United Nations Framework Classification for Fossil Fuel and Mineral Reserves and Resources 2009: • Generic, principles-based system: – Applicable to both solid minerals and fluids; • Applications in: – International energy studies; – National resource reporting; – Company project management; – Financial reporting; • 3-D classification of resources on the basis of: – Socio-economic criteria (E); – Project maturity (technical feasibility) (F); – Geological knowledge (G); • A key goal of UNFC-2009 is to provide a tool to facilitate global communications: – Uses a numerical coding system; – Language independent reporting

  4. Nuclear public information activities in Chile

    International Nuclear Information System (INIS)

    Munoz Quintana; R

    1995-01-01

    Nuclear plans and developing programs in developing and developed countries are facing-in a higher or lower degree- opposition from public opinion. The objectives and contents of the public education program on nuclear energy in Chile are dealt with in this paper

  5. CNEN activities and brazilian nuclear power policy

    International Nuclear Information System (INIS)

    Costa, E.M. da

    1989-01-01

    The goal of the brazilian policy in nuclear power is to provide its use in a pacific way to promote the well being of our people. It is intended, as well, to finish the construction of Angra II and III and proceed with the implementation of the nuclear fuel cycle, progressively fomenting its nationalization. (A.C.A.S.)

  6. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Netherlands

    International Nuclear Information System (INIS)

    2009-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Fissionable materials, ores, radioactive materials and equipment (Fissionable materials and ores; Radioactive materials and equipment); 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection (Protection of workers; Protection of the public; Protection of individuals undergoing medical exposure); 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Minister for Housing, Spatial Planning and the Environment; Minister for Economic Affairs; Minister for Social Affairs and Employment; Minister for Health, Welfare and Sports; Minister for Finance; Minister for Foreign Affairs); 2. Advisory body - Health Council of the Netherlands; 3. Public and semi-public agencies (Nuclear Research and Consultancy Group - NRG; Central Organisation for Radioactive Waste - COVRA)

  7. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Spain

    International Nuclear Information System (INIS)

    2010-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trading in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection (Safeguards and non-proliferation; Physical protection); 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Ministry of Industry, Tourism and Trade - MITYC; Ministry of the Interior - MIR; Ministry of Economy and the Exchequer - MEH; Ministry of the Environment and Rural and Marine Affairs - MARM); 2. Public and semi-public agencies (Nuclear Safety Council - CSN; Centre for Energy-related, Environmental and Technological Research - CIEMAT; National Energy Commission - CNE; 3. Public capital companies (Enusa Industrias Avanzadas, s.a. - ENUSA; Empresa Nacional de Residuos Radiactivos, s.a. - ENRESA)

  8. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Portugal

    International Nuclear Information System (INIS)

    2011-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Ministry of Health; Minister of Science, Technology and Higher Education; Ministry of Economy and Innovation; Ministry of Environment and Territorial Planning; Other authorities); 2. Advisory bodies (Independent Commission for Radiological Protection and Nuclear Safety - CIPRSN; National Radiation Protection Commission - CNPCR; National Commission for Radiological Emergencies - CNER; Other advisory bodies); 3. Public and semi-public agencies

  9. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Canada

    International Nuclear Information System (INIS)

    2009-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction (Licensing system; Offences, compliance and enforcement; Regulatory documents; Other relevant legislation); 2. Mining regime; 3. Nuclear substances and radiation devices; 4. Nuclear facilities; 5. Trade in nuclear materials and equipment (Exports, Other imports); 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Governor in council; Minister of natural resources; Other Ministerial authorities; Canadian Nuclear Safety Commission - CNSC); 2. Public and semi-public agencies (National Research Council - NRC; Natural Sciences and Engineering Research Council; Atomic Energy of Canada Ltd. - AECL)

  10. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Hungary

    International Nuclear Information System (INIS)

    2008-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Atomic Energy Co-ordination Council; Hungarian Atomic Energy Authority - HAEA; Minister for Health; Minister for Local Government and Regional Development and Minister for Justice and Law Enforcement; Minister for Agriculture and Rural Development; Minister for Economy and Transport; Minister of Environment Protection and Water Management; Minister for Defence; Minister for Education; President of the Hungarian Mining and Geological Authority; Governmental Co-ordination Committee); 2. Advisory bodies (Scientific Board); 3. Public and semi-public agencies (Institute for Electric Power Research - VEIKI; Atomic Energy Research Institute - AEKI; Institute of Isotopes; Department of Physical Chemistry of the University of Pannon; Hungarian Power Companies Ltd - MVM Zrt.)

  11. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Denmark

    International Nuclear Information System (INIS)

    2015-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Minister of Health; Minister for the Environment/Minister of Transport and Energy; Minister of Justice; Minister of Defence; National Board of Health; Emergency Management Agency); 2. Advisory bodies (The Danish Ministry of Energy, Supply and Climate and the Danish Energy Agency); 3. Public and semi-public agencies (Risoe National Laboratory)

  12. Decommissioning of nuclear facilities: a growing activity in the world

    International Nuclear Information System (INIS)

    Anasco, Raul

    2001-01-01

    Nuclear power plants and nuclear facilities are no different from normal buildings and factories. Eventually, they become worn-out or old fashioned, too expensive to maintain or remodel. Decommissioning a nuclear facility is different from retiring other types because of the radioactivity involved. The most important consideration in nuclear decommissioning is to protect workers and the public from exposure to harmful levels of radiation. General criteria and strategies for the decommissioning of nuclear facilities are described as well as the present decommissioning activities of the Argentine CNEA (author)

  13. Nuclear fear and children: the impact of parental nuclear activism, responsivity, and fear

    Energy Technology Data Exchange (ETDEWEB)

    LaGuardia, M.R.

    1986-01-01

    This study examines the extent to which parental nuclear fear, parental activism, and parental responsivity is associated with children's (age 10) nuclear fear. Other associated variables investigated include: nuclear denial, general anxiety and fear, and the personal characteristics of sex, socio-economic status, and academic aptitude. Findings indicate that children attend to nuclear issues when their parents attend to a significant degree. Children's hopelessness about the arms race is increased as parents' worry about nuclear war increases. Children's fear about not surviving a nuclear war increases as parents' worry about survivability decreases. Children who have more general fears also indicated that they have a high level of hopelessness, pervasive worry, and much concern about being able to survive a nuclear war. Children with a high degree of general anxiety did not indicate high degrees of nuclear fears. Children with high academic aptitude were more knowledgeable about nuclear issues and expressed more fears about the nuclear threat. Boys demonstrated more knowledge about nuclear issues than girls, and girls expressed much more frequent fear and worry about the nuclear threat than boys. Parents of lower socio-economic statues (SES) expressed more denial about the nuclear threat and were more pro-military than the higher SES parents.

  14. Guidance For The Proper Characterization And Classification Of Low Specific Activity Materials And Surface Contaminated Objects For Disposal

    International Nuclear Information System (INIS)

    Portsmouth, J.H.; Blackford, L.T.

    2012-01-01

    Regulatory concerns over the proper characterization of certain waste streams led CH2M HILL Plateau Remediation Company (CHPRC) to develop written guidance for personnel involved in Decontamination and Decommissioning (D and D) activities, facility management and Waste Management Representatives (WMRs) involved in the designation of wastes for disposal on and off the Hanford Site. It is essential that these waste streams regularly encountered in D and D operations are properly designated, characterized and classified prior to shipment to a Treatment, Storage or Disposal Facility (TSDF). Shipments of waste determined by the classification process as Low Specific Activity (LSA) or Surface Contaminated Objects (SCO) must also be compliant with all applicable U.S. Department of Transportation (DOE) regulations as well as Department of Energy (DOE) orders. The compliant shipment of these waste commodities is critical to the Hanford Central Plateau cleanup mission. Due to previous problems and concerns from DOE assessments, CHPRC internal critiques as well as DOT, a management decision was made to develop written guidance and procedures to assist CHPRC shippers and facility personnel in the proper classification of D and D waste materials as either LSA or SCO. The guidance provides a uniform methodology for the collection and documentation required to effectively characterize, classify and identify candidate materials for shipping operations. A primary focus is to ensure that waste materials generated from D and D and facility operations are compliant with the DOT regulations when packaged for shipment. At times this can be difficult as the current DOT regulations relative to the shipment of LSA and SCO materials are often not clear to waste generators. Guidance is often sought from NUREG 1608/RAMREG-003 (3): a guidance document that was jointly developed by the DOT and the Nuclear Regulatory Commission (NRC) and published in 1998. However, NUREG 1608 (3) is now thirteen

  15. Micro-Doppler Based Classification of Human Aquatic Activities via Transfer Learning of Convolutional Neural Networks

    Directory of Open Access Journals (Sweden)

    Jinhee Park

    2016-11-01

    Full Text Available Accurate classification of human aquatic activities using radar has a variety of potential applications such as rescue operations and border patrols. Nevertheless, the classification of activities on water using radar has not been extensively studied, unlike the case on dry ground, due to its unique challenge. Namely, not only is the radar cross section of a human on water small, but the micro-Doppler signatures are much noisier due to water drops and waves. In this paper, we first investigate whether discriminative signatures could be obtained for activities on water through a simulation study. Then, we show how we can effectively achieve high classification accuracy by applying deep convolutional neural networks (DCNN directly to the spectrogram of real measurement data. From the five-fold cross-validation on our dataset, which consists of five aquatic activities, we report that the conventional feature-based scheme only achieves an accuracy of 45.1%. In contrast, the DCNN trained using only the collected data attains 66.7%, and the transfer learned DCNN, which takes a DCNN pre-trained on a RGB image dataset and fine-tunes the parameters using the collected data, achieves a much higher 80.3%, which is a significant performance boost.

  16. Automatic classification of background EEG activity in healthy and sick neonates

    Science.gov (United States)

    Löfhede, Johan; Thordstein, Magnus; Löfgren, Nils; Flisberg, Anders; Rosa-Zurera, Manuel; Kjellmer, Ingemar; Lindecrantz, Kaj

    2010-02-01

    The overall aim of our research is to develop methods for a monitoring system to be used at neonatal intensive care units. When monitoring a baby, a range of different types of background activity needs to be considered. In this work, we have developed a scheme for automatic classification of background EEG activity in newborn babies. EEG from six full-term babies who were displaying a burst suppression pattern while suffering from the after-effects of asphyxia during birth was included along with EEG from 20 full-term healthy newborn babies. The signals from the healthy babies were divided into four behavioural states: active awake, quiet awake, active sleep and quiet sleep. By using a number of features extracted from the EEG together with Fisher's linear discriminant classifier we have managed to achieve 100% correct classification when separating burst suppression EEG from all four healthy EEG types and 93% true positive classification when separating quiet sleep from the other types. The other three sleep stages could not be classified. When the pathological burst suppression pattern was detected, the analysis was taken one step further and the signal was segmented into burst and suppression, allowing clinically relevant parameters such as suppression length and burst suppression ratio to be calculated. The segmentation of the burst suppression EEG works well, with a probability of error around 4%.

  17. Classification of brain tumors by means of proton nuclear magnetic resonance (NMR) spectroscopy

    International Nuclear Information System (INIS)

    Sottile, V.S.; Zanchi, D.E.

    2017-01-01

    In the present work, at the request of health professionals, a computer application named “ViDa” was developed. The aim of this study is to differentiate brain lesions according to whether or not they are tumors, and their subsequent classification into different tumor types using magnetic resonance spectroscopy (SVS) with an echo time of 30 milliseconds. For this development, different areas of knowledge were integrated, among which are Artificial intelligence, physics, programming, physiopathology, images in medicine, among others. Biomedical imaging can be divided into two stages: the pre-processing, performed by the resonator, and post-processing software, performed by ViDa, for the interpretation of the data. This application is included within the Medical Informatics area, as it provides assistance for clinical decision making. The role of the biomedical engineer is fulfilled by developing a health technology in response to a manifested real-life problem. The tool developed shows promising results achieving a 100% Sensitivity, 73% Specificity, 77% Positive Predictive Value and 100% Negative Predictive Value reported in 21 cases tested. The correct classifications of the tumor’s origin reach 70%, the classification of non-astrocytic lesions achieves 67% of correct classifications in that the gradation of astrocytomas achieves a 57% of gradations that agree with biopsies and 43% of slight errors. It was possible to develop an application of assistance to the diagnosis, which together with others medical tests, will make it possible to sharpen the diagnoses of brain tumors. (authors) [es

  18. Recent activities on nuclear codes and standards

    International Nuclear Information System (INIS)

    Minematsu, Akiyoshi; Ishimoto, Shozaburo; Honjin, Masao

    2000-01-01

    The technical codes and standards relating to the nuclear power stations in Japan are prepared by shapes of laws (ministerial ordinances and bulletins) issued by the government and obliged to comply with by 'the Law concerning the Regulations of Nuclear Material Substances, Nuclear Fuel Substances and Nuclear Reactors' and 'the Electricity Business Act' and of guides defined by the Nuclear Safety Commission, and further some private standards have been issued at a shape of complement of these laws and guides by receiving national recommendation. On the other hand, in the fields of electricity and heat facilities except atomic energy, simplification and feature stipulation of the national technical codes and standards was recently carried out, by which a system usable for the private standards in and out of Japan were prepared through approval of the private Japan Electrotechnical Standards and Codes Committee (JESC). As the nuclear field was now excepted from simultaneous transfer to the private standard and the standard application system, it is expected in future to realize similar transfer if possible and preparation of the private standards is now being advanced. Here were introduced on present state on technical codes and standards relating to the nuclear power generation facilities and recent trends on their private standardization. (G.K.)

  19. Educational activity on nuclear energy in Aomori region

    International Nuclear Information System (INIS)

    Abe, Katsunori

    2008-01-01

    There are many nuclear industries and research facilities in Aomori Prefecture, Japan. Fuel cycle facilities and a LWR power station are now in operation. Another fuel cycle facilities and power stations will soon be under construction. Fusion research activity, ITER-BA, has started last year. We have launched nuclear-related education and research programs to teach nuclear engineering knowledge and skills to the local students. Hachinohe Institute of Technology is located on Pacific ocean side of Aomori Prefecture close to Rokkasho area, and has six undergraduate departments and three graduate courses. Hitherto, many alumni have engaged in nuclear-related companies in the area. In addition to previous subject on nuclear engineering, a new activity 'Challenge Nuclear-site Experience Program' started in 2007, as one of nuclear educational promotion programs in Japan. The students from various engineering departments learned the status and role of nuclear industries and researches. A curriculum course for nuclear engineering will be ready in 2009 for undergraduate students through various departments. In the summer of 2007, the introductory lesson on nuclear power generation and the technical tour to the power station were carried out for two days. In the autumn, the introductory lesson on nuclear fuel cycle and the tour to fuel cycle facilities were performed for three days, including one day tour to research facilities in the area. Its aim was to let the students recognize the role of regional nuclear activities and the attractiveness of nuclear-related industries. The program was supported by Ministry of Economy, Trade and Industry and was performed in cooperation with Tohoku Electric Power Company, Japan Nuclear Fuel Limited and Japan Atomic Energy Agency. (author)

  20. Status and future plan of nuclear data activities in Korea

    Energy Technology Data Exchange (ETDEWEB)

    Oh, Soo-Youl; Chang, Jonghwa [Korea Atomic Energy Research Inst., Taejon (Korea, Republic of)

    1997-03-01

    It was reviewed the nuclear data related activities in Korea, and was explained a 15-year term nation-wide R and D project that had been launched at 1996. The experiences up to now show, as a whole, that the nuclear data field in Korea is in the early stage. Through the long term project, however, it is expected that a firm foundation be established. Then it would be possible to contribute actively to the international nuclear data community as well as to meet domestic requests for nuclear data. Also it was pointed out the necessity of the international collaboration such as consultings and co-works. (author)

  1. New classification of operators' human errors at overseas nuclear power plants and preparation of easy-to-use case sheets

    International Nuclear Information System (INIS)

    Takagawa, Kenichi

    2004-01-01

    At nuclear power plants, plant operators examine other human error cases, including those that occurred at other plants, so that they can learn from such experiences and avoid making similar errors again. Although there is little data available on errors made at domestic plants, nuclear operators in foreign countries are reporting even minor irregularities and signs of faults, and a large amount of data on human errors at overseas plants could be collected and examined. However, these overseas data have not been used effectively because most of them are poorly organized or not properly classified and are often hard to understand. Accordingly, we carried out a study on the cases of human errors at overseas power plants in order to help plant personnel clearly understand overseas experiences and avoid repeating similar errors, The study produced the following results, which were put to use at nuclear power plants and other facilities. (1) ''One-Point-Advice'' refers to a practice where a leader gives pieces of advice to his team of operators in order to prevent human errors before starting work. Based on this practice and those used in the aviation industry, we have developed a new method of classifying human errors that consists of four basic actions and three applied actions. (2) We used this new classification method to classify human errors made by operators at overseas nuclear power plants. The results show that the most frequent errors caused not by operators themselves but due to insufficient team monitoring, for which superiors and/or their colleagues were responsible. We therefore analyzed and classified possible factors contributing to insufficient team monitoring, and demonstrated that the frequent errors have also occurred at domestic power plants. (3) Using the new classification formula, we prepared a human error case sheets that is easy for plant personnel to understand. The sheets are designed to make data more understandable and easier to remember

  2. Strategic Classification and Examination of the Development of Current Airline Alliance Activities

    Science.gov (United States)

    Wang, Zhi H.; Evans, Michael

    2002-01-01

    Previous research argues that despite the fact that strategic alliances have become an important feature of the world airline industry, little rigorous analysis has been done on the effects of these alliances. This is partially because there is a lack of precise definitions to specify different types of airline alliances in the literature. This research identifies several categories of airline alliances through a strategic classification of the current alliance activities involving the major airlines for the period 1989 to 1999. The classification enables this research to examine how strategic alliance activities are evolving, particularly to compare how airlines in North America, the European Union and the Asia Pacific region have committed to different alliances. Findings show that there is a significant difference between the number and scope of alliances adopted in the three aviation markets. These findings facilitate research to further analyse the impact of market liberalization on various formations of strategic airline alliances.

  3. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Slovak Republic

    International Nuclear Information System (INIS)

    2013-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining Regime; 3. Radioactive Substances and Equipment; 4. Nuclear Installations (Licensing and Inspection, including Nuclear Safety; Emergency Response); 5. Trade in Nuclear Materials and Equipment; 6. Radiological Protection; 7. Radioactive Waste Management; 8. Non-proliferation and Physical Protection; 9. Transport; 10. Nuclear Third Party Liability; II. Institutional Framework: 1. Regulatory and Supervisory Authorities (Nuclear Regulatory Authority of the Slovak Republic - UJD; Ministry of Health; Ministry of the Environment; Ministry of the Interior; Ministry of Economy; Ministry of Labour and National Labour Inspectorate); 2. Public and Semi-Public Agencies

  4. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Turkey

    International Nuclear Information System (INIS)

    2008-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations; 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Prime Minister; Ministry of Energy and Natural Resources; Ministry of Health; Ministry of the Environment and Forestry); 2. Public and semi-public agencies (Turkish Atomic Energy Authority - TAEK; General Directorate for Mineral Research and Exploration - MTA; ETI Mine Works General Management; Turkish Electric Generation and Transmission Corporation - TEAS; Turkish Electricity Distribution Corporation - TEDAS)

  5. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Switzerland

    International Nuclear Information System (INIS)

    2010-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment (Nuclear fuels; Radioactive substances and equipment generating ionising radiation); 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; 11. Environmental protection; II. Institutional Framework: 1. Regulatory and supervisory authorities (Federal Council; Federal Assembly; Federal Department of the Environment, Transport, Energy and Communications - DETEC; Federal Office of Energy - SFOE; Swiss Federal Nuclear Safety Inspectorate - IFSN; Federal Department of Home Affairs - FDHA; Federal Office of Public Health - FOPH; State Secretariat for Education and Research - SER; Other authorities); 2. Advisory bodies (Swiss Federal Nuclear Safety Commission - KNS; Federal Commission for Radiological Protection and Monitoring of the Radioactivity in the Environment; Federal Emergency Organisation on Radioactivity); 3. Public and semi-public agencies (Paul-Scherrer Institute - PSI; Fund for the decommissioning of nuclear installations and for the waste disposal; National Co-operative for the

  6. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Belgium

    International Nuclear Information System (INIS)

    2010-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Nuclear facilities (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response; Decommissioning); 4. Trade in nuclear materials and equipment; 5. Radiological protection; 6. Radioactive waste management; 7. Non-proliferation of nuclear weapons and physical protection of nuclear material (International aspects; National control and security measures); 8. Transport; 9. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Federal Agency for Nuclear Control - FANC; Federal Public Service for Home Affairs; Federal Public Service for Economy, SME's, Self-Employed and Energy; Federal Public Service for Employment, Labour and Social Dialogue; Federal Public Service for Defence; Federal Public Service for Foreign Affairs, Foreign Trade and Development Co-operation; Federal Public Planning Service for Science Policy); 2. Advisory bodies (Scientific Council for Ionizing Radiation of the Federal Agency for Nuclear Control; Superior Health Council; Superior Council for Safety, Hygiene and Enhancement of Workplaces; Advisory Committee for the Non-Proliferation of Nuclear Weapons; Commission for Electricity and Gas Regulation - CREG)

  7. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Italy

    International Nuclear Information System (INIS)

    2010-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in nuclear materials and equipment (General provisions; Patents); 6. Radiation Protection (Protection of workers; Protection of the public; Protection of the environment); 7. Radioactive Waste Management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear Third Party Liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Interdepartmental Committee for Economic Planning; Nuclear Safety Agency; Prime Minister; Minister for Economic Development; Minister for Labour and Social Security; Minister for Health; Minister for the Environment; Minister for the Interior; Minister for Transport and Navigation; Minister for Foreign Trade (now incorporated in Ministry for Economic Development); Minister for Education; Treasury Minister; Minister for Universities and for Scientific and Technical Research; Minister for Foreign Affairs; State Advocate General); 2. Advisory bodies (Inter-ministerial Council for Consultation and Co-ordination; Coordinating Committee for Radiation Protection of Workers and the Public; Regional and Provincial Commissions for Public Health Protection

  8. Refining Time-Activity Classification of Human Subjects Using the Global Positioning System.

    Science.gov (United States)

    Hu, Maogui; Li, Wei; Li, Lianfa; Houston, Douglas; Wu, Jun

    2016-01-01

    Detailed spatial location information is important in accurately estimating personal exposure to air pollution. Global Position System (GPS) has been widely used in tracking personal paths and activities. Previous researchers have developed time-activity classification models based on GPS data, most of them were developed for specific regions. An adaptive model for time-location classification can be widely applied to air pollution studies that use GPS to track individual level time-activity patterns. Time-activity data were collected for seven days using GPS loggers and accelerometers from thirteen adult participants from Southern California under free living conditions. We developed an automated model based on random forests to classify major time-activity patterns (i.e. indoor, outdoor-static, outdoor-walking, and in-vehicle travel). Sensitivity analysis was conducted to examine the contribution of the accelerometer data and the supplemental spatial data (i.e. roadway and tax parcel data) to the accuracy of time-activity classification. Our model was evaluated using both leave-one-fold-out and leave-one-subject-out methods. Maximum speeds in averaging time intervals of 7 and 5 minutes, and distance to primary highways with limited access were found to be the three most important variables in the classification model. Leave-one-fold-out cross-validation showed an overall accuracy of 99.71%. Sensitivities varied from 84.62% (outdoor walking) to 99.90% (indoor). Specificities varied from 96.33% (indoor) to 99.98% (outdoor static). The exclusion of accelerometer and ambient light sensor variables caused a slight loss in sensitivity for outdoor walking, but little loss in overall accuracy. However, leave-one-subject-out cross-validation showed considerable loss in sensitivity for outdoor static and outdoor walking conditions. The random forests classification model can achieve high accuracy for the four major time-activity categories. The model also performed well

  9. Progress report on nuclear data activities in Sweden for 1980

    International Nuclear Information System (INIS)

    Conde, H.

    1981-04-01

    This report contains information from laboratories in Sweden about measurements and compilations which are relevant to obtain nuclear data for research and development in different applied fields of nuclear physics. Reports relevant to the nuclear energy field are given of neutron cross section measurements and studies of the fission process. Reports are also given of nuclear structure and decay data measurements especially fission product nuclear data measurements of importance for the research on reactor safety and nuclear waste handling. Charged particle and photonuclear cross section measurements with applications in e.g. activation analysis and the production of radioisotopes for medical use are reported as well. In some cases reports are also given of measurements aiming to test nuclear models which are commonly used for the calculation of the above type of data. The report also contains short information about changes of existing experimental facilities. (Auth.)

  10. Robust nuclear lamina-based cell classification of aging and senescent cells.

    Science.gov (United States)

    Righolt, Christiaan H; van 't Hoff, Merel L R; Vermolen, Bart J; Young, Ian T; Raz, Vered

    2011-12-01

    Changes in the shape of the nuclear lamina are exhibited in senescent cells, as well as in cells expressing mutations in lamina genes. To identify cells with defects in the nuclear lamina we developed an imaging method that quantifies the intensity and curvature of the nuclear lamina. We show that this method accurately describes changes in the nuclear lamina. Spatial changes in nuclear lamina coincide with redistribution of lamin A proteins and local reduction in protein mobility in senescent cell. We suggest that local accumulation of lamin A in the nuclear envelope leads to bending of the structure. A quantitative distinction of the nuclear lamina shape in cell populations was found between fresh and senescent cells, and between primary myoblasts from young and old donors. Moreover, with this method mutations in lamina genes were significantly distinct from cells with wild-type genes. We suggest that this method can be applied to identify abnormal cells during aging, in in vitro propagation, and in lamina disorders.

  11. Application of United Nations Framework Classification – 2009 (UNFC-2009) to nuclear fuel resources

    International Nuclear Information System (INIS)

    Tulsidas, H.; Hanly, A.; Li, S.; Miezitis, Y.; Carson, L.; Hall, S.; Van Gosen, B.; Vance, R.; Mukusheva, A.; Villas-Bôas, R.; Griffiths, C.; Ross, J.; MacDonald, D.; Bankes, P.

    2014-01-01

    Nuclear energy currently provides approximately 15% of the world’s electricity, utilized in about 30 countries. As many countries are planning to expand capacity or introduce nuclear power into the energy mix, the demand for uranium fuel is expected to increase. Reactors suitable for utilizing thorium as fuel are also being developed for deployment in the long-term. Since nuclear power is capital intensive and uranium feedstock is required for a nuclear reactor life of between 40 and 60 years, operators need assurance of a reliable uranium supply. Comprehensive and up-to-date information on the worldwide supply of nuclear fuel resources is therefore essential for planning and implementation of nuclear power programmes. Information on resources are provided through the bi-annual Organisation for Economic Co-operation and Development / Nuclear Energy Agency – International Atomic Energy Agency (OECD-NEA/IAEA ) report “Uranium: Resources, Production and Demand” (the “Red Book”) and the online datasets of World Distribution of Uranium Deposits (UDEPO) and World Thorium Deposits and Resources (ThDEPO).

  12. 1984 Ordinance on nuclear activities (1984:14)

    International Nuclear Information System (INIS)

    1984-01-01

    This Supplementary Ordinance on Nuclear Activities (1984:14) sets out a regulatory regime for the conveyance out of Sweden of equipment or material that has been specially designed or prepared for the processing, use or production of nuclear substances or which is otherwise of essential importance for the production of nuclear devices. The Annex to the Ordinance sets out the list of such equipment or material whose export is subject to Government authorisation. (NEA) [fr

  13. Activities report 1991-1992: Nuclear Research Center of Strasbourg

    International Nuclear Information System (INIS)

    1993-01-01

    This activities report of the Nuclear Research Centre of Strasbourg for the years 1991 and 1992, presents nine research axis: theoretical physics, mechanisms of reactions and nuclear structure, extreme forms of nuclei, exotic nuclei, hot and dense nuclear matter, ultra-relativistic heavy ions, physics of LEP (European Large Electron-Positron storage ring) at 'DELPHI', chemistry and physics of radiations, physics and applications of semi-conductors

  14. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Austria

    International Nuclear Information System (INIS)

    2003-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I) - General Regulatory Regime - General Outline: 1. Introduction; 2. Mining Regime; 3. Radioactive Substances, Nuclear Fuel and Equipment; 4. Nuclear Installations (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in Nuclear Materials and Equipment; 6. Radiation Protection; 7. Radioactive Waste Management; 8. Non-Proliferation and Physical Protection; 9. Transport; 10. Nuclear Third Party Liability; II) - Institutional Framework: 1. Regulatory and Supervisory Authorities: A. Federal Authorities - Bund (The Federal Chancellery; The Federal Minister for Women's Affairs and Consumer Protection; The Federal Minister of the Interior; The Federal Minister for Economic Affairs; The Federal Minister of Finance; The Federal Minister of Labour, Health and Social Affairs; The Federal Minister of Science and Transport; The Federal Minister of Justice; The Federal Minister for the Environment; The Federal Minister for Foreign Affairs) B. Regional Authorities - Laender; C. District Authorities - Bezirksverwaltungsbehorden; 2. Advisory Bodies (Forum for Nuclear Questions, Radiation Protection Commission - SSK); 3. Public and Semi-Public Agencies (The Seibersdorf Austrian Research Centre; The Graz Nuclear Institute; The Nuclear Institute of the Austrian Universities; The Institute of Risk Research, University of Vienna)

  15. Managing nuclear knowledge: IAEA activities and international coordination. Asian Network for Education in Nuclear Technology (ANENT)

    International Nuclear Information System (INIS)

    2007-07-01

    This CD-ROM is attached to the booklet 'Managing nuclear knowledge: IAEA activities and international coordination. Asian Network for Education in Nuclear Technology (ANENT)'. It contains the background material with regard to ANENT in full text, including policy level papers, reports, presentation material made by Member States, and meeting summaries during the period 2002-2005. Further information on the current ANENT activities and related IAEA activities is available at 'http://anent-iaea.org' and 'http://iaea.org/inisnkm'

  16. Synergism in regulation of nuclear and radiological activities

    International Nuclear Information System (INIS)

    Buzdugan, A.

    2009-01-01

    In 2006 the reform of nuclear activity regulation in Moldova was initiated. On May 11, 2006, the Parliament of the Republic of Moldova passed the law Nr 111-XVI 'About Safe Accomplishment of Nuclear and Radiological Activity'. On the 23rd of March, 2007 the National Agency for Regulation of Nuclear and Radiological Activities (NARNRA) was founded due to the decree of the Government under the Ministry of Ecology and Natural Resources. Its first objective was elaboration of necessary regulation documents in this field

  17. The monopoly of the nuclear activities in Brazil

    International Nuclear Information System (INIS)

    Santanna, Luciano Portal

    2009-01-01

    The difficulty in dealing with some technical and legal concepts related to use of radioactivity and nuclear energy, combined with a confusing law silent and many respects outdated, doubts arise and often, misconceptions about scope of the monopoly of the Federal Government on activities with nuclear ores and minerals and derivatives. With an interdisciplinary approach, the aim of this work address key aspects of the legal regime of nuclear activities and facilities in Brazil, distinguishing it from that applicable to the activities and radiative facilities

  18. One-Class Classification-Based Real-Time Activity Error Detection in Smart Homes.

    Science.gov (United States)

    Das, Barnan; Cook, Diane J; Krishnan, Narayanan C; Schmitter-Edgecombe, Maureen

    2016-08-01

    Caring for individuals with dementia is frequently associated with extreme physical and emotional stress, which often leads to depression. Smart home technology and advances in machine learning techniques can provide innovative solutions to reduce caregiver burden. One key service that caregivers provide is prompting individuals with memory limitations to initiate and complete daily activities. We hypothesize that sensor technologies combined with machine learning techniques can automate the process of providing reminder-based interventions. The first step towards automated interventions is to detect when an individual faces difficulty with activities. We propose machine learning approaches based on one-class classification that learn normal activity patterns. When we apply these classifiers to activity patterns that were not seen before, the classifiers are able to detect activity errors, which represent potential prompt situations. We validate our approaches on smart home sensor data obtained from older adult participants, some of whom faced difficulties performing routine activities and thus committed errors.

  19. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Ireland

    International Nuclear Information System (INIS)

    2009-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations; 5. Trade in nuclear materials and equipment; 6. Radiation protection (Radiation protection standards; Emergency response); 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Minister for the Environment, Heritage and Local Government; Minister for Agriculture and Food; Minister for Communications, Marine and Natural Resources; Minister for Finance; Minister for Health and Children; Minister for Defence); 2. Public and semi-public agencies (Radiological Protection Institute of Ireland; Food Safety Authority of Ireland)

  20. Classification of team sport activities using a single wearable tracking device.

    Science.gov (United States)

    Wundersitz, Daniel W T; Josman, Casey; Gupta, Ritu; Netto, Kevin J; Gastin, Paul B; Robertson, Sam

    2015-11-26

    Wearable tracking devices incorporating accelerometers and gyroscopes are increasingly being used for activity analysis in sports. However, minimal research exists relating to their ability to classify common activities. The purpose of this study was to determine whether data obtained from a single wearable tracking device can be used to classify team sport-related activities. Seventy-six non-elite sporting participants were tested during a simulated team sport circuit (involving stationary, walking, jogging, running, changing direction, counter-movement jumping, jumping for distance and tackling activities) in a laboratory setting. A MinimaxX S4 wearable tracking device was worn below the neck, in-line and dorsal to the first to fifth thoracic vertebrae of the spine, with tri-axial accelerometer and gyroscope data collected at 100Hz. Multiple time domain, frequency domain and custom features were extracted from each sensor using 0.5, 1.0, and 1.5s movement capture durations. Features were further screened using a combination of ANOVA and Lasso methods. Relevant features were used to classify the eight activities performed using the Random Forest (RF), Support Vector Machine (SVM) and Logistic Model Tree (LMT) algorithms. The LMT (79-92% classification accuracy) outperformed RF (32-43%) and SVM algorithms (27-40%), obtaining strongest performance using the full model (accelerometer and gyroscope inputs). Processing time can be reduced through feature selection methods (range 1.5-30.2%), however a trade-off exists between classification accuracy and processing time. Movement capture duration also had little impact on classification accuracy or processing time. In sporting scenarios where wearable tracking devices are employed, it is both possible and feasible to accurately classify team sport-related activities. Copyright © 2015 Elsevier Ltd. All rights reserved.

  1. Activities on covariance estimation in Japanese Nuclear Data Committee

    Energy Technology Data Exchange (ETDEWEB)

    Shibata, Keiichi [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    1997-03-01

    Described are activities on covariance estimation in the Japanese Nuclear Data Committee. Covariances are obtained from measurements by using the least-squares methods. A simultaneous evaluation was performed to deduce covariances of fission cross sections of U and Pu isotopes. A code system, KALMAN, is used to estimate covariances of nuclear model calculations from uncertainties in model parameters. (author)

  2. Activity report 2006 - INB - Brazilian Nuclear Industries Inc

    International Nuclear Information System (INIS)

    2006-01-01

    This document reports the activities of Brazilian Nuclear Industry company during 2006 as follows: uranium isotope enrichment; production of nuclear fuel; mineral resources; finance and administration; planning and sales; quality, safety and environment, communication and social action; economic and financial management

  3. Report of activities of the Japanese Nuclear Data Committee

    International Nuclear Information System (INIS)

    1977-01-01

    A progress report of the Japanese Nuclear Data Committee for the period of April 1, 1975 to March 31, 1977 is presented with emphasis on the topics of Japanese Evaluated Nuclear Data Library, version I(JENDL-1). Activities of working groups are also reported briefly. (auth.)

  4. Regulatory and institutional framework for nuclear activities

    International Nuclear Information System (INIS)

    1996-01-01

    This study is part of a series of analytical studies on nuclear legislation in OECD Member countries, prepared with the co-operation of the countries concerned. Each study has been organised on the basis of a standardised format for all countries, thus facilitating the comparison of information. The studies are intended to be updated periodically, taking into account modifications to the nuclear legislation in each country. This is the first update to the 1995 Edition. Unfortunately, due to the constraints of the OECD Publications Service, it covers only those legislative and institutional changes which, in our view, are of the greatest significance for our readers. Thus, you will find new chapters on Finland, Greece, Italy, Japan, Mexico, the Netherlands, Portugal and the United States. Changes to the nuclear legislation and institutions of the remaining countries will be incorporated into the next Update which is expected to be published at the end of 1997. (author)

  5. Activity identification using body-mounted sensors—a review of classification techniques

    International Nuclear Information System (INIS)

    Preece, Stephen J; Kenney, Laurence P J; Howard, Dave; Goulermas, John Y; Crompton, Robin; Meijer, Kenneth

    2009-01-01

    With the advent of miniaturized sensing technology, which can be body-worn, it is now possible to collect and store data on different aspects of human movement under the conditions of free living. This technology has the potential to be used in automated activity profiling systems which produce a continuous record of activity patterns over extended periods of time. Such activity profiling systems are dependent on classification algorithms which can effectively interpret body-worn sensor data and identify different activities. This article reviews the different techniques which have been used to classify normal activities and/or identify falls from body-worn sensor data. The review is structured according to the different analytical techniques and illustrates the variety of approaches which have previously been applied in this field. Although significant progress has been made in this important area, there is still significant scope for further work, particularly in the application of advanced classification techniques to problems involving many different activities. (topical review)

  6. Design and Evaluation of Smart Glasses for Food Intake and Physical Activity Classification.

    Science.gov (United States)

    Chung, Jungman; Oh, Wonjoon; Baek, Dongyoub; Ryu, Sunwoong; Lee, Won Gu; Bang, Hyunwoo

    2018-02-14

    This study presents a series of protocols of designing and manufacturing a glasses-type wearable device that detects the patterns of temporalis muscle activities during food intake and other physical activities. We fabricated a 3D-printed frame of the glasses and a load cell-integrated printed circuit board (PCB) module inserted in both hinges of the frame. The module was used to acquire the force signals, and transmit them wirelessly. These procedures provide the system with higher mobility, which can be evaluated in practical wearing conditions such as walking and waggling. A performance of the classification is also evaluated by distinguishing the patterns of food intake from those physical activities. A series of algorithms were used to preprocess the signals, generate feature vectors, and recognize the patterns of several featured activities (chewing and winking), and other physical activities (sedentary rest, talking, and walking). The results showed that the average F1 score of the classification among the featured activities was 91.4%. We believe this approach can be potentially useful for automatic and objective monitoring of ingestive behaviors with higher accuracy as practical means to treat ingestive problems.

  7. Semi-Supervised Active Learning for Sound Classification in Hybrid Learning Environments

    Science.gov (United States)

    Han, Wenjing; Coutinho, Eduardo; Li, Haifeng; Schuller, Björn; Yu, Xiaojie; Zhu, Xuan

    2016-01-01

    Coping with scarcity of labeled data is a common problem in sound classification tasks. Approaches for classifying sounds are commonly based on supervised learning algorithms, which require labeled data which is often scarce and leads to models that do not generalize well. In this paper, we make an efficient combination of confidence-based Active Learning and Self-Training with the aim of minimizing the need for human annotation for sound classification model training. The proposed method pre-processes the instances that are ready for labeling by calculating their classifier confidence scores, and then delivers the candidates with lower scores to human annotators, and those with high scores are automatically labeled by the machine. We demonstrate the feasibility and efficacy of this method in two practical scenarios: pool-based and stream-based processing. Extensive experimental results indicate that our approach requires significantly less labeled instances to reach the same performance in both scenarios compared to Passive Learning, Active Learning and Self-Training. A reduction of 52.2% in human labeled instances is achieved in both of the pool-based and stream-based scenarios on a sound classification task considering 16,930 sound instances. PMID:27627768

  8. Semi-Supervised Active Learning for Sound Classification in Hybrid Learning Environments.

    Science.gov (United States)

    Han, Wenjing; Coutinho, Eduardo; Ruan, Huabin; Li, Haifeng; Schuller, Björn; Yu, Xiaojie; Zhu, Xuan

    2016-01-01

    Coping with scarcity of labeled data is a common problem in sound classification tasks. Approaches for classifying sounds are commonly based on supervised learning algorithms, which require labeled data which is often scarce and leads to models that do not generalize well. In this paper, we make an efficient combination of confidence-based Active Learning and Self-Training with the aim of minimizing the need for human annotation for sound classification model training. The proposed method pre-processes the instances that are ready for labeling by calculating their classifier confidence scores, and then delivers the candidates with lower scores to human annotators, and those with high scores are automatically labeled by the machine. We demonstrate the feasibility and efficacy of this method in two practical scenarios: pool-based and stream-based processing. Extensive experimental results indicate that our approach requires significantly less labeled instances to reach the same performance in both scenarios compared to Passive Learning, Active Learning and Self-Training. A reduction of 52.2% in human labeled instances is achieved in both of the pool-based and stream-based scenarios on a sound classification task considering 16,930 sound instances.

  9. The monopoly of the nuclear activities in Brazil; O monopolio das atividades nucleares no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Santanna, Luciano Portal

    2009-07-01

    The difficulty in dealing with some technical and legal concepts related to use of radioactivity and nuclear energy, combined with a confusing law silent and many respects outdated, doubts arise and often, misconceptions about scope of the monopoly of the Federal Government on activities with nuclear ores and minerals and derivatives. With an interdisciplinary approach, the aim of this work address key aspects of the legal regime of nuclear activities and facilities in Brazil, distinguishing it from that applicable to the activities and radiative facilities.

  10. Legislation on and regulation of nuclear activities

    International Nuclear Information System (INIS)

    1984-05-01

    This work is a compilation of legislative texts and regulations published by the Atomic Energy Commission's Legal Affairs Department (CEA). It provides a comprehensive source of knowledge and information on nuclear energy law. Legislative texts published over the last forty years, are collected and analytically indexed. The publication covers both French regulations and regulations of international organisations such as the International Atomic Energy Agency and Euratom. It is divided into eight different chapters, dealing with regulations relevant to international and national institutions, nuclear installations, third party liability, protection of persons and the environment, etc. A chronological table of the texts of international and national laws is also included in this work. (NEA) [fr

  11. Military nuclear activities. The simulation program

    International Nuclear Information System (INIS)

    Delpuech, A.

    2000-01-01

    The durability of the French nuclear weapon dissuasion has to integrate two kind of problems: the geopolitical situation with the comprehensive nuclear test ban treaty (CTBT) and the aging of weapons. The replacement of decayed weapons requires a complete safety and reliability validation of the new weapons which is performed using simulation. This paper gives a brief presentation of the simulation program and of the technical means developed by the military division of the French atomic energy commission (CEA-DAM): the Airix X-ray radiography installation and the 'megajoule' laser facility. (J.S.)

  12. Dating ancient Chinese celadon porcelain by neutron activation analysis and bayesian classification

    International Nuclear Information System (INIS)

    Xie Guoxi; Feng Songlin; Feng Xiangqian; Zhu Jihao; Yan Lingtong; Li Li

    2009-01-01

    Dating ancient Chinese porcelain is one of the most important and difficult problems in porcelain archaeological field. Eighteen elements in bodies of ancient celadon porcelains fired in Southern Song to Yuan period (AD 1127-1368) and Ming dynasty (AD 1368-1644), including La, Sm, U, Ce, etc., were determined by neutron activation analysis (NAA). After the outliers of experimental data were excluded and multivariate normal distribution was tested, and Bayesian classification was used for dating of 165 ancient celadon porcelain samples. The results show that 98.2% of total ancient celadon porcelain samples are classified correctly. It means that NAA and Bayesian classification are very useful for dating ancient porcelain. (authors)

  13. A summary of recent developments in transportation hazard classification activities for ammonium perchlorate

    Science.gov (United States)

    Koller, A. M., Jr.; Hannum, J. A. E.

    1983-01-01

    The transportation hazard classification of Ammonium Perchlorate is discussed. A test program was completed and data were forwarded to retain a Class 5.1 designation (oxidizer) for AP which is shipped internationally. As a follow-on to the initial team effort to conduct AP tests existing data were examined and a matrix which catalogs test parameters and findings was compiled. A collection of test protocols is developed to standardize test methods for energetic materials of all types. The actions to date are summarized; the participating organizations and their roles as presently understood; specific findings on AP (matrix); and issues, lessons learned, and potential actions of particular interest to the propulsion community which may evolve as a result of future U.N. propellant transportation classification activities.

  14. Activities of Brazilian Nuclear Energy Commission in the field of nuclear power plant licesing

    International Nuclear Information System (INIS)

    Alves, R.N.

    1986-01-01

    The objectives, the procedures and the ways of implementation of measures aiming at safety use of nuclear energy are presented. The juridical aspects in the licensing area and the regulatory activities used by CNEN. The description of nuclear power plants and the methodology used in studies of environmental protection and radiation protection are presented [pt

  15. Annual and activity report 2005 - INB - Brazilian Nuclear Industries. Nuclear fuel: technology for the essential

    International Nuclear Information System (INIS)

    2005-01-01

    This document reports the activities of Brazilian Nuclear Industry company during 2005 as follows: uranium isotope enrichment; production of nuclear fuel; mineral resources; finance and administration; planning and sales; quality, safety and environment, communication and social action; economic and financial management

  16. Improved prognostic classification of breast cancer defined by antagonistic activation patterns of immune response pathway modules

    International Nuclear Information System (INIS)

    Teschendorff, Andrew E; Gomez, Sergio; Arenas, Alex; El-Ashry, Dorraya; Schmidt, Marcus; Gehrmann, Mathias; Caldas, Carlos

    2010-01-01

    Elucidating the activation pattern of molecular pathways across a given tumour type is a key challenge necessary for understanding the heterogeneity in clinical response and for developing novel more effective therapies. Gene expression signatures of molecular pathway activation derived from perturbation experiments in model systems as well as structural models of molecular interactions ('model signatures') constitute an important resource for estimating corresponding activation levels in tumours. However, relatively few strategies for estimating pathway activity from such model signatures exist and only few studies have used activation patterns of pathways to refine molecular classifications of cancer. Here we propose a novel network-based method for estimating pathway activation in tumours from model signatures. We find that although the pathway networks inferred from cancer expression data are highly consistent with the prior information contained in the model signatures, that they also exhibit a highly modular structure and that estimation of pathway activity is dependent on this modular structure. We apply our methodology to a panel of 438 estrogen receptor negative (ER-) and 785 estrogen receptor positive (ER+) breast cancers to infer activation patterns of important cancer related molecular pathways. We show that in ER negative basal and HER2+ breast cancer, gene expression modules reflecting T-cell helper-1 (Th1) and T-cell helper-2 (Th2) mediated immune responses play antagonistic roles as major risk factors for distant metastasis. Using Boolean interaction Cox-regression models to identify non-linear pathway combinations associated with clinical outcome, we show that simultaneous high activation of Th1 and low activation of a TGF-beta pathway module defines a subtype of particularly good prognosis and that this classification provides a better prognostic model than those based on the individual pathways. In ER+ breast cancer, we find that

  17. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - United Kingdom

    International Nuclear Information System (INIS)

    2003-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining Regime; 3. Radioactive Substances; 4. Nuclear Installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in Nuclear Materials and Equipment; 6. Radiation Protection; 7. Radioactive Waste Management; 8. Non-Proliferation and Physical Protection; 9. Transport; 10. Nuclear Third Party Liability; II. Institutional Framework: 1. Regulatory and Supervisory Authorities (Department of Trade and Industry - DTI; Secretary of State for Environment, Food and Rural Affairs and the Secretary of State for Health; Secretary of State for Transport; Secretary of State for Education); 2. Advisory Bodies (Medical Research Council - MRC; Nuclear Safety Advisory Committee; Radioactive Waste Management Advisory Committee); 3. Public and Semi-Public Agencies (United Kingdom Atomic Energy Authority - UKAEA; Health and Safety Commission and Executive - HSC/HSE; National Radiological Protection Board - NRPB; Environment Agencies; British Nuclear Fuels plc. - BNFL; Amersham International plc.; The National Nuclear Corporation Ltd. - NNC; United Kingdom Nirex Ltd.; Magnox Electric plc.; British Energy Generation Ltd.; Scottish Electricity Generator Companies; British Energy Generation Ltd.; Regional Electricity Companies in England and Wales)

  18. Unsupervised classification of neocortical activity patterns in neonatal and pre-juvenile rodents

    Directory of Open Access Journals (Sweden)

    Nicole eCichon

    2014-05-01

    Full Text Available Flexible communication within the brain, which relies on oscillatory activity, is not confined to adult neuronal networks. Experimental evidence has documented the presence of discontinuous patterns of oscillatory activity already during early development. Their highly variable spatial and time-frequency organization has been related to region specificity. However, it might be equally due to the absence of unitary criteria for classifying the early activity patterns, since they have been mainly characterized by visual inspection. Therefore, robust and unbiased methods for categorizing these discontinuous oscillations are needed for increasingly complex data sets from different labs. Here, we introduce an unsupervised detection and classification algorithm for the discontinuous activity patterns of rodents during early development. For this, firstly time windows with discontinuous oscillations vs. epochs of network silence were identified. In a second step, the major features of detected events were identified and processed by principal component analysis for deciding on their contribution to the classification of different oscillatory patterns. Finally, these patterns were categorized using an unsupervised cluster algorithm. The results were validated on manually characterized neonatal spindle bursts, which ubiquitously entrain neocortical areas of rats and mice, and prelimbic nested gamma spindle bursts. Moreover, the algorithm led to satisfactory results for oscillatory events that, due to increased similarity of their features, were more difficult to classify, e.g. during the pre-juvenile developmental period. Based on a linear classification, the optimal number of features to consider increased with the difficulty of detection. This algorithm allows the comparison of neonatal and pre-juvenile oscillatory patterns in their spatial and temporal organization. It might represent a first step for the unbiased elucidation of activity patterns

  19. Safety objectives for nuclear activities in Canada

    International Nuclear Information System (INIS)

    1982-04-01

    This report by the Advisory Committee on Nuclear Safety presents a concise statement of the basic safety objectives which the Committee considers underlie, or should underlie, the regulations and the licensing and compliance practices of the Atomic Energy Control Board. The report also includes a number of general criteria for achieving these objectives

  20. Nuclear Energy Agency. 6. activity report. 1977

    International Nuclear Information System (INIS)

    1978-01-01

    NEA has, as a primary objective, to ensure through international co-operation that the nuclear option is available for consideration in its true worth. The safety and regulatory aspects of nulear development have represented in 1977 about two thirds of NEA's total effort; and a high degree of priority was given to questions of nuclear safety and of radioactive waste management. Similarly, the growing need of Member countries for an integrated appraisal of technical, economic, safety, environmental and political questions influencing the nuclear fuel cycle was increasingly taken into account. Finally, a general effort was made to achieve greater visibility for the positive results of the NEA programme, as a contribution to improved public understanding of the factors underlying nuclear power programmes. As in previous years, the NEA programme continued to involve close collaboration with the International Atomic Energy Agency (IAEA) and the Commission of the European Communities. Within the OECD, close collaboration was maintained with the Combined Energy Staff and the Environment Directorate

  1. Activities in nuclear and high energy physics

    Energy Technology Data Exchange (ETDEWEB)

    1983-01-01

    High energy and nuclear physics research concerning bubble chamber investigations, European hybrid system ACCMOR, WA 18, PETRA, PEP, VA 4, SING, LENA, LEP 3 and DELPHI experiments is summarized. Experiments with electron beams, and in pions and muons physics, and radiochemistry are reported on.

  2. Programmatic activities of IAEA in nuclear medicine

    International Nuclear Information System (INIS)

    Padhy, A.K.

    2004-01-01

    Nuclear medicine is high-tech medicine. Nevertheless, it is essential for addressing important health problems of people living in developing countries also. Not only is it sometimes expensive to start with, it also involves a lot of technical know-how, requiring transfer of technology from developed to the developing countries. The rapid development of nuclear medicine, of sophisticated instrumentation and radiopharmaceuticals has resulted in an enormous increase in costs and in the need for maintaining quality. These constitute a challenge and a venture when promoting nuclear medicine globally and particularly in developing countries. No other international organization except IAEA has any specific mandate for application of nuclear energy in the area of human health. WHO has no specific programin nuclear medicine, hence the importance of IAEA's involvement. The IAEA has, ever since its inception, given high priority to enhancing the awareness and capabilities of developing member states to employ nuclear technology for health care and medical research. Much of the Agency promoted research in nuclear medicine is delivered through the so called co-ordinated research projects (CRPs). The CRPs are normally organised as multi-center, prospective studies so that large volume of scientific data could be generated in a short period of 18-24 months. The research is normally done within an operational frame work, established and co-ordinated by the IAEA. The reason for this is that the results can be compared despite site or country specific differences. The methods and materials used for such studies usually conform to a predetermined standard. The protocols for various investigations, criteria for patient selection, mode of arriving at a final diagnosis and analysis of data from these multi-center studies are normally agreed upon by the Chief Scientific Investigators from each participating institution and the IAEA prior to the start of the actual work programme. The

  3. Graduate nuclear engineering programmes motivate educational and research activities

    International Nuclear Information System (INIS)

    Mavko, B.

    2000-01-01

    Some fifteen years ago the University of Ljubljana, Faculty for Mathematics and Physics together with the national research organisation the J. Stefan jointly established a Graduate programme of Nuclear Engineering. From the onset, the programme focused on nuclear technology, nuclear safety, and reactor physics and environment protection. Over the years this graduate programme has became the focal point of nuclear related, research and educational activities in Slovenia. It has grown into a meeting ground for recognised national and distinguished foreign educators and experienced professionals from the industry. In conjunction with an important national project, supported by the Slovenian government, entitled 'Jung Researcher' it also enhances the knowledge transfer to the next generation. Since the programme was introduced, the interest for this programme has been steadily growing. Accordingly, a number of PhD and MS degrees in NE have been awarded. The graduates of this programme have encountered very good job opportunities in nuclear as well as in non-nuclear sector. (author)

  4. Activities of the ANS special committee on nuclear nonproliferation

    Energy Technology Data Exchange (ETDEWEB)

    Buckner, M.R. [Westinghouse Savannah River Co., Aiken, SC (United States); Sanders, T.L. [Sandia National Labs., Albuquerque, NM (United States)

    2001-07-01

    The American Nuclear Society (ANS) Special Committee on Nuclear Nonproliferation (SCNN) believes that to reverse current trends, U.S. policy must revisit the fundamental premise of Atoms for Peace: A collaborative nuclear enterprise enhances rather than diminishes national security. To accomplish this, the U.S. Government must develop an integrated policy on energy, nuclear technology, and national security. The policy must recognize that these are interrelated and that an integrated policy will require substantial investments in nuclear research and development and in nuclear education. This paper describes the current activities of the SCNN to heighten awareness of nonproliferation issues for decision makers and ANS members, and alert them to the need for action to resolve these concerns. (author)

  5. Activities of the ANS special committee on nuclear nonproliferation

    International Nuclear Information System (INIS)

    Buckner, M.R.; Sanders, T.L.

    2001-01-01

    The American Nuclear Society (ANS) Special Committee on Nuclear Nonproliferation (SCNN) believes that to reverse current trends, U.S. policy must revisit the fundamental premise of Atoms for Peace: A collaborative nuclear enterprise enhances rather than diminishes national security. To accomplish this, the U.S. Government must develop an integrated policy on energy, nuclear technology, and national security. The policy must recognize that these are interrelated and that an integrated policy will require substantial investments in nuclear research and development and in nuclear education. This paper describes the current activities of the SCNN to heighten awareness of nonproliferation issues for decision makers and ANS members, and alert them to the need for action to resolve these concerns. (author)

  6. Progress report on nuclear data activities in Sweden for 1980

    International Nuclear Information System (INIS)

    Conde, H.

    1981-04-01

    The report contains information from laboratories in Sweden about measurements and compilations which are relevant to obtain nuclear data for research and development in different applied fields of nuclear physics. The report also contains short information about changes of existing experimental facilities. Reports relevant to the nuclear energy field are given of neutron cross section measurements and studies of the fission process. Reports are also given of nuclear structure and decay data measurements especially fission product nuclear data measurements of importance for the research on reactor safety and nuclear waste handling. Charged particle and photonuclear cross section measurements with applications in e.g. activation analysis and the production of radioisotopes for medical use are reported as well.(author)

  7. Nuclear Power Plant Control and Instrumentation activities in Finland

    International Nuclear Information System (INIS)

    Haapanen, P.; Wahlstroem, B.

    1990-01-01

    Finland has achieved some remarkable achievements in nuclear power production. Existing four plants have some of the best operating records in the world - high capacity factors, low occupational doses and short refuelling outages. Although public opinion was strongly turned against nuclear power after Chernobyl accident, and no decisions for new nuclear plants can be made before next elections in 1991, the nuclear option is still open. Utility companies are maintaining readiness to start new construction immediately after a positive political decision is made. One important component of the good operation history of the Finnish nuclear power plants is connected to the continuous research, development, modification and upgrading work, which is proceeding in Finland. In the following a short description is given on recent activities related to the I and C-systems of the nuclear power plants. (author). 2 tabs

  8. Analysis by nuclear reactions and activations. A current bibliography

    International Nuclear Information System (INIS)

    Bujdoso, E.

    2001-01-01

    A current bibliography based on INIS Atomindex with 78 references on Analysis by nuclear reactions and activations has been prepared for year 1998. References are arranged by first authors' name. (N.T.)

  9. Activity report of the ENEA Nuclear Data project in 2008

    International Nuclear Information System (INIS)

    Ventura, A.

    2009-03-01

    Descriptions are given of the nuclear data activities undertaken during 2008 at the Bologna Research Centre of the Italian National Agency for New Technologies, Energy and the Environment (ENEA). (author)

  10. Using pattern classification and nuclear forensic signatures to link UOC to source rocks and purification processes

    International Nuclear Information System (INIS)

    Marks, N.; Robel, M.; Borg, M.; Hutcheon, I.; Kristo, M.

    2014-01-01

    Nuclear forensics is a scientific discipline interfacing law enforcement, nuclear science and nonproliferation. Information on the history and on the potential origin of unknown nuclear material can be obtained through nuclear forensic analysis. Using commonly available techniques of mass spectrometry, microscopy and x-ray diffraction, we have gained insight into the processing and origin of a suite of uranium ore concentrate (UOC) samples. We have applied chemometric techniques to investigate the relationships between uranium ore deposits and UOC samples in order to identify chemical and isotopic signatures of nuclear forensic importance. We developed multivariate signatures based on elemental concentrations and isotope ratios using a database of characteristics of UOC originating throughout the world. By introducing detailed and specific information about the source rock geology for each sample, we improved our understanding of the preservation of forensic signatures in UOC. Improved characterization of sample processing and provenance allows us to begin to assess the statistical significance of different groupings of samples and identify underlying patterns. Initial results indicate the concentration of uranium in the ore body, the geochemical conditions associated with uranium emplacement, and host rock petrogenesis exert controlling influences on the impurities preserved in UOC. Specific ore processing techniques, particularly those related to In-Situ Recovery, are also reflected in UOC impurity signatures. Stable and radiogenic isotope geochemistry can be used in conjunction with rare earth element patterns and other characteristics to link UOCs to specific geologic deposits of origin. We will present a number of case studies illustrating the ways in which nuclear forensic analysis can provide insight into the ore geology and production and purification processes used to produce UOC. (author)

  11. Activities of Japan Nuclear Technology Institute Japanese TSO of Industry

    International Nuclear Information System (INIS)

    Nagata, T.

    2010-01-01

    Nuclear energy is a superior form of energy in that it delivers stable power supplies and counters global warming, and it is important to promote nuclear power generation as the core power sources for a nation. However, the Japanese environment surrounding nuclear energy is changing drastically, following the liberalization of market and recent series of troubles or falsifications shaking public confidence in nuclear energy. In the above mentioned situation, nuclear industries and organizations must fulfill their individual roles, and amass its strength to work toward enhancing industry initiatives for safety activities, securing safe / stable plant operations, restoring public confidence and initiate revitalization of nuclear energy operations. The Japan Nuclear Technology Institute (JANTI) has been established as a new entity for supporting and leading the industry's further progress in March 2005. Members of JANTI are not only utilities but also component manufacturers and constructors. JANTI enhance the technological foundation of nuclear energy based on scientific and rational data, coordinates its use among a wide range of relevant organizations, and helps members enhance their voluntary safety activities. At the same time, it is independent of utilities, and exercises a function of checking industry at the objective, third-party standpoint. As for the activities of JANTI itself, information disclosure and the establishment of a council comprising external members will enhance administration transparency. (author)

  12. Nuclear power plants - Instrumentation and control systems important for safety - Classification (International Electrotechnical Commission Standard Publication 1226:1993)

    International Nuclear Information System (INIS)

    Stefanik, J.

    1996-01-01

    This international standard established a method of classification of the information and command functions for nuclear power plants, and the I and C and equipment that provide those functions, into categories that designate the importance for safety of the functions, and the associated systems and equipment. The resulting classification then determines relevant design criteria. The design criteria are the measures of quality by which the adequacy of each functions, and the associated systems and equipment in relation to its importance to plant safety is ensured. In this standard, the criteria are those of functionality, reliability, performance, environmental durability and quality assurance. This standard is applicable to all the information and command functions, and the instrumentation and control systems and equipment that provide those functions. The functions, systems and equipment under consideration provide automated protection, closed or open loop control, and information to the operating staff. They keep the NPP conditions inside the safe operating envelope and provide automatic actions, or enable manual actions, that mitigate accidents or prevent or minimize radioactive releases to the site or wider environment. The functions, and the associated systems and equipment that fulfill these roles safeguard the health and safety of the NPP operators and the public. This standard complements, and does not replace or supersede, the Safety Guides and Codes of Practice published by the International Atomic Energy Agency

  13. Nuclear starburst activity induced by elongated bulges in spiral galaxies

    Science.gov (United States)

    Kim, Eunbin; Kim, Sungsoo S.; Choi, Yun-Young; Lee, Gwang-Ho; de Grijs, Richard; Lee, Myung Gyoon; Hwang, Ho Seong

    2018-06-01

    We study the effects of bulge elongation on the star formation activity in the centres of spiral galaxies using the data from the Sloan Digital Sky Survey Data Release 7. We construct a volume-limited sample of face-on spiral galaxies with Mr nuclear starbursts using the fibre specific star formation rates derived from the SDSS spectra. We find a statistically significant correlation between bulge elongation and nuclear starbursts in the sense that the fraction of nuclear starbursts increases with bulge elongation. This correlation is more prominent for fainter and redder galaxies, which exhibit higher ratios of elongated bulges. We find no significant environmental dependence of the correlation between bulge elongation and nuclear starbursts. These results suggest that non-axisymmetric bulges can efficiently feed the gas into the centre of galaxies to trigger nuclear starburst activity.

  14. Nuclear legislation: analytical study. Regulatory and institutional framework for nuclear activities

    International Nuclear Information System (INIS)

    2001-01-01

    Australia' s basic legislation in the nuclear field consists in five Acts passed by the Federal Parliament. These Acts are as follow: the South Pacific nuclear free zone treaty Act; the nuclear non-proliferation act; the Australian nuclear science and technology organisation act; the Australian nuclear science and technology organisation amendment act; the radiation protection and nuclear safety act. The two first Acts were prompted by the need for domestic legislation to implement Australia 's international obligations. The third arose from a long-standing recognition that the Atomic energy Act was inappropriate as the legislative basis for the activities of Australia 's national nuclear organisation. For its part the fourth Act introduced some necessary changes into the Australian nuclear science and technology organisation Act. Finally, the fifth act establishes a regime to regulate the operation of nuclear installations and the management of radiation sources, where the activities are undertaken by Commonwealth entities. Each of these Acts is discussed in more details in this work. (N.C.)

  15. Comparative analysis of the nuclear lens opalescence by the Lens Opacities Classification System III with nuclear density values provided by Oculus Pentacam: a cross-section study using Pentacam Nucleus Staging software.

    Science.gov (United States)

    Magalhães, Fernanda Pedreira; Costa, Elaine Fiod; Cariello, Angelino Júlio; Rodrigues, Eduardo Buchele; Hofling-Lima, Ana Luisa

    2011-01-01

    To compare the clinical classification of cataract using the Lens Opacities Classification System (LOCS) III with the mean values of lens density provided by the Pentacam Scheimpflug System in nuclear cataracts. One hundred and one eyes from 101 patients with age-related nuclear cataract were submitted to clinical examination for lens grading score using LOCS III. According to LOCS III, nuclear opalescence was divided in six groups. Patients were evaluated by the Pentacam Scheimpflug System for the mean lens density using the Pentacam lens densitometry program (PLDP), the Pentacam Nucleus Staging (PNS) mean value and the PNS cataract grading score. A positive correlation between the mean values of lens density and LOCS III classification, considering groups 1 to 5, could be noticed with PLDP and PNS mean value. The mean values between the groups were similar using the PLDP and the PNS mean value. However, when the PNS cataract grading score was evaluated, there was low correspondence with LOCS III classification. Pentacam Scheimpflug device offers an objective measure of the lens nuclear density on nuclear cataracts. PLDP and the PNS mean value were both useful to evaluate age-related nuclear cataract up to LOCS III group 5.

  16. Comparative analysis of the nuclear lens opalescence by the Lens Opacities Classification System III with nuclear density values provided by Oculus Pentacam: a cross-section study using Pentacam Nucleus Staging software

    Directory of Open Access Journals (Sweden)

    Fernanda Pedreira Magalhães

    2011-04-01

    Full Text Available PURPOSE: To compare the clinical classification of cataract using the Lens Opacities Classification System (LOCS III with the mean values of lens density provided by the Pentacam Scheimpflug System in nuclear cataracts. METHODS: One hundred and one eyes from 101 patients with age-related nuclear cataract were submitted to clinical examination for lens grading score using LOCS III. According to LOCS III, nuclear opalescence was divided in six groups. Patients were evaluated by the Pentacam Scheimpflug System for the mean lens density using the Pentacam lens densitometry program (PLDP, the Pentacam Nucleus Staging (PNS mean value and the PNS cataract grading score. RESULTS: A positive correlation between the mean values of lens density and LOCS III classification, considering groups 1 to 5, could be noticed with PLDP and PNS mean value. The mean values between the groups were similar using the PLDP and the PNS mean value. However, when the PNS cataract grading score was evaluated, there was low correspondence with LOCS III classification. CONCLUSION: Pentacam Scheimpflug device offers an objective measure of the lens nuclear density on nuclear cataracts. PLDP and the PNS mean value were both useful to evaluate age-related nuclear cataract up to LOCS III group 5.

  17. Safety Oversight of Decommissioning Activities at DOE Nuclear Sites

    International Nuclear Information System (INIS)

    Zull, Lawrence M.; Yeniscavich, William

    2008-01-01

    The Defense Nuclear Facilities Safety Board (Board) is an independent federal agency established by Congress in 1988 to provide nuclear safety oversight of activities at U.S. Department of Energy (DOE) defense nuclear facilities. The activities under the Board's jurisdiction include the design, construction, startup, operation, and decommissioning of defense nuclear facilities at DOE sites. This paper reviews the Board's safety oversight of decommissioning activities at DOE sites, identifies the safety problems observed, and discusses Board initiatives to improve the safety of decommissioning activities at DOE sites. The decommissioning of former defense nuclear facilities has reduced the risk of radioactive material contamination and exposure to the public and site workers. In general, efforts to perform decommissioning work at DOE defense nuclear sites have been successful, and contractors performing decommissioning work have a good safety record. Decommissioning activities have recently been completed at sites identified for closure, including the Rocky Flats Environmental Technology Site, the Fernald Closure Project, and the Miamisburg Closure Project (the Mound site). The Rocky Flats and Fernald sites, which produced plutonium parts and uranium materials for defense needs (respectively), have been turned into wildlife refuges. The Mound site, which performed R and D activities on nuclear materials, has been converted into an industrial and technology park called the Mound Advanced Technology Center. The DOE Office of Legacy Management is responsible for the long term stewardship of these former EM sites. The Board has reviewed many decommissioning activities, and noted that there are valuable lessons learned that can benefit both DOE and the contractor. As part of its ongoing safety oversight responsibilities, the Board and its staff will continue to review the safety of DOE and contractor decommissioning activities at DOE defense nuclear sites

  18. Active learning for clinical text classification: is it better than random sampling?

    Science.gov (United States)

    Figueroa, Rosa L; Ngo, Long H; Goryachev, Sergey; Wiechmann, Eduardo P

    2012-01-01

    Objective This study explores active learning algorithms as a way to reduce the requirements for large training sets in medical text classification tasks. Design Three existing active learning algorithms (distance-based (DIST), diversity-based (DIV), and a combination of both (CMB)) were used to classify text from five datasets. The performance of these algorithms was compared to that of passive learning on the five datasets. We then conducted a novel investigation of the interaction between dataset characteristics and the performance results. Measurements Classification accuracy and area under receiver operating characteristics (ROC) curves for each algorithm at different sample sizes were generated. The performance of active learning algorithms was compared with that of passive learning using a weighted mean of paired differences. To determine why the performance varies on different datasets, we measured the diversity and uncertainty of each dataset using relative entropy and correlated the results with the performance differences. Results The DIST and CMB algorithms performed better than passive learning. With a statistical significance level set at 0.05, DIST outperformed passive learning in all five datasets, while CMB was found to be better than passive learning in four datasets. We found strong correlations between the dataset diversity and the DIV performance, as well as the dataset uncertainty and the performance of the DIST algorithm. Conclusion For medical text classification, appropriate active learning algorithms can yield performance comparable to that of passive learning with considerably smaller training sets. In particular, our results suggest that DIV performs better on data with higher diversity and DIST on data with lower uncertainty. PMID:22707743

  19. Nuclear safety activities in the SR of Slovenia in 1986

    International Nuclear Information System (INIS)

    Susnik, J.

    1987-06-01

    Currently Yugoslavia has one 632 MWe nuclear power plant (NPP) of PWR design, located at Krsko in the Socialist Republic (SR) of Slovenia. Krsko NPP, which is a two-loop plant, started power operation in 1981. In general, reactor safety activities in the SR of Slovenia are mostly related to upgrading the safety of our Krsko NPP and to developing capabilities for use in future units. This report presents the nuclear safety related legislation and organization of the corresponding regulatory body, and the activities related to nuclear safety of the participating organizations in the SR of Slovenia in 1986. (author)

  20. Nuclear safety activities in the SR of Slovenia in 1986

    Energy Technology Data Exchange (ETDEWEB)

    Susnik, J [Inst. Jozef Stefan, Ljubljana (Slovenia)

    1987-06-15

    Currently Yugoslavia has one 632 MWe nuclear power plant (NPP) of PWR design, located at Krsko in the Socialist Republic (SR) of Slovenia. Krsko NPP, which is a two-loop plant, started power operation in 1981. In general, reactor safety activities in the SR of Slovenia are mostly related to upgrading the safety of our Krsko NPP and to developing capabilities for use in future units. This report presents the nuclear safety related legislation and organization of the corresponding regulatory body, and the activities related to nuclear safety of the participating organizations in the SR of Slovenia in 1986. (author)

  1. Regulatory control of maintenance activities in Argentine nuclear power plants

    International Nuclear Information System (INIS)

    Calvo, J.C.; Caruso, G.

    2000-01-01

    The main maintenance objective is to assure that the safety features of structures, components and systems of nuclear power plants are kept as designed. Therefore, there is a direct relationship between safety and maintenance. Owing to the above mentioned, maintenance activities are considered a relevant regulatory issue for the Argentine Nuclear Regulatory Authority (ARN). This paper describes the regulatory control to maintenance activities of Argentine nuclear power plants. It also addresses essential elements for maintenance control, routine inspections, special inspections during planned outages, audits and license conditions and requirements. (author)

  2. Recent development in safety regulation of nuclear fuel cycle activities

    International Nuclear Information System (INIS)

    Kato, S.

    2001-01-01

    Through the effort of deliberation and legislation over five years, Japanese government structure was reformed this January, with the aim of realizing simple, efficient and transparent administration. Under the reform, the Agency for Nuclear and Industrial Safety (ANIS) was founded in the Ministry of Economy, Trade and Industry (METI) to be responsible for safety regulation of energy-related nuclear activities, including nuclear fuel cycle activities, and industrial activities, including explosives, high-pressure gasses and mining. As one of the lessons learned from the JCO criticality accident of September 1999, it was pointed out that the government's inspection function was not enough for fuel fabrication facilities. Accordingly, new statutory regulatory activities were introduced, namely, inspection of observance of safety rules and procedures for all kinds of nuclear operators and periodic inspection of fuel fabrication facilities. In addition, in order to cope with insufficient safety education and training of workers in nuclear facilities, licensees of nuclear facilities are required by law to specify safety education and training for their workers. ANIS is committed to enforce these new regulatory activities effectively and efficiently. In addition, it is going to be prepared, in its capacity as safety regulatory authority, for future development of Japanese fuel cycle activities, including commissioning of JNFL Rokkasho reprocessing plant and possible application for licenses for JNFL MOX fabrication plant and for spent fuel interim storage facilities. (author)

  3. Classification of scrap material from nuclear power plants as acceptable for recirculation

    International Nuclear Information System (INIS)

    Bergman, C.

    1983-06-01

    The Swedish National Institute of Radiation Protection has in a principal decision accepted that scrap material from nuclear power plants, that contains or may contain radioactive material, can be recirculated. The document is an English translation of the background material for the Board meeting decision and gives some guide-lines for the authority when dealing with this questions. (author)

  4. Neutron Activation Analysis and Moessbauer Correlations of Archaeological Pottery from Amazon Basin for Classification Studies

    International Nuclear Information System (INIS)

    Bellido, A. V. B.; Latini, R. M.; Nicoli, I.; Scorzelli, R. B.; Solorzano, P. M.

    2011-01-01

    The aim of the present work was to investigate the correlation between data obtained by means of two analytical methods, instrumental neutron activation analysis (INAA) and Moessbauer Spectroscopy of pottery samples combined with multivariate statistical analysis in order to optimize quantitative analysis in the classification studies. Ceramics recently discovered in archaeological earth circular structures sites in Acre state Brazil. 199 samples were analyzed by INAA, allowing simultaneous determination of twenty elements chemical concentrations, and 44 samples by using Moessbauer Spectroscopy, allowing the determination of fourteen hyperfine parameters. For the correlation study, data were treated by two multivariate statistical methods: cluster analysis for the classification and the principal component analysis for the data correlations. INAA data show that some of REE (rare earth elements) were the discriminating variables for this technique. Mossbauer parameters that exhibit the same behavior are being investigated, remarkable improve can be seem for the combined REE and the Mossbauer variables showing a good results considering the limited number of samples. This data matrix is being used for the understanding in the studies of classification and provenance of ceramics prehistory of the Amazonic basin.

  5. Classification of Physical Activity: Information to Artificial Pancreas Control Systems in Real Time.

    Science.gov (United States)

    Turksoy, Kamuran; Paulino, Thiago Marques Luz; Zaharieva, Dessi P; Yavelberg, Loren; Jamnik, Veronica; Riddell, Michael C; Cinar, Ali

    2015-10-06

    Physical activity has a wide range of effects on glucose concentrations in type 1 diabetes (T1D) depending on the type (ie, aerobic, anaerobic, mixed) and duration of activity performed. This variability in glucose responses to physical activity makes the development of artificial pancreas (AP) systems challenging. Automatic detection of exercise type and intensity, and its classification as aerobic or anaerobic would provide valuable information to AP control algorithms. This can be achieved by using a multivariable AP approach where biometric variables are measured and reported to the AP at high frequency. We developed a classification system that identifies, in real time, the exercise intensity and its reliance on aerobic or anaerobic metabolism and tested this approach using clinical data collected from 5 persons with T1D and 3 individuals without T1D in a controlled laboratory setting using a variety of common types of physical activity. The classifier had an average sensitivity of 98.7% for physiological data collected over a range of exercise modalities and intensities in these subjects. The classifier will be added as a new module to the integrated multivariable adaptive AP system to enable the detection of aerobic and anaerobic exercise for enhancing the accuracy of insulin infusion strategies during and after exercise. © 2015 Diabetes Technology Society.

  6. QSAR classification models for the prediction of endocrine disrupting activity of brominated flame retardants.

    Science.gov (United States)

    Kovarich, Simona; Papa, Ester; Gramatica, Paola

    2011-06-15

    The identification of potential endocrine disrupting (ED) chemicals is an important task for the scientific community due to their diffusion in the environment; the production and use of such compounds will be strictly regulated through the authorization process of the REACH regulation. To overcome the problem of insufficient experimental data, the quantitative structure-activity relationship (QSAR) approach is applied to predict the ED activity of new chemicals. In the present study QSAR classification models are developed, according to the OECD principles, to predict the ED potency for a class of emerging ubiquitary pollutants, viz. brominated flame retardants (BFRs). Different endpoints related to ED activity (i.e. aryl hydrocarbon receptor agonism and antagonism, estrogen receptor agonism and antagonism, androgen and progesterone receptor antagonism, T4-TTR competition, E2SULT inhibition) are modeled using the k-NN classification method. The best models are selected by maximizing the sensitivity and external predictive ability. We propose simple QSARs (based on few descriptors) characterized by internal stability, good predictive power and with a verified applicability domain. These models are simple tools that are applicable to screen BFRs in relation to their ED activity, and also to design safer alternatives, in agreement with the requirements of REACH regulation at the authorization step. Copyright © 2011 Elsevier B.V. All rights reserved.

  7. Recent activities of the nuclear fuel technology department of Cekmece Nuclear Research and Training Center

    International Nuclear Information System (INIS)

    Can, S.; Aybers, T.; Kopuz, B.

    1997-01-01

    The Nuclear Fuel Technology Department (NFTD) in CNRTC is a unique unit in Turkey in charge of performing all activities in nuclear fuel field. It has a pilot plant on uranium refining and conversion to UO 2 since 1986. Presently, its R and D activities are focused on pellet manufacturing and characterization: UO 2 , ThO 2 and (Th,U)O 2 . The studies on thorium dioxide fuel include to obtain ThO 2 pellets from thorium nitrate and mixed (Th,U)O 2 pellets. A study on evaluation of different fuel cycle options in accordance with nuclear energy planning in Turkey is also going on. (author)

  8. Peaceful nuclear programme and front end nuclear fuel cycle activities in Pakistan

    International Nuclear Information System (INIS)

    S. Mukhtar Ahmed

    1999-01-01

    Pakistan has a modest but broad based nuclear programme related to peaceful uses of atomic energy in nuclear power, agriculture, medicine and industry. While development projects in these areas form the major segment of Pakistan Atomic Energy Commission's work, complimentary activities in basic research and human resource development are also supported. PAEC through its activities has been moving towards the goal of achieving self-reliance for its existing programme in an international atmosphere of embargoes and restrictions and in pursuit of creating an infrastructure to help sustain an indigenous nuclear power programme. To solve the local needs and requirements, radioisotopes and nuclear techniques have been applied in agriculture, medicine, hydrology and industry. PAEC has one large research and development establishment in physical sciences, three R and D centers in agriculture, one in biotechnology, and ten nuclear medical centers for diagnostics and oncology treatment. Two research reactors form nucleus of research and development activities in nuclear sciences. In the power sector a 137 Mew CANDU power reactor is in operation in Karachi since 1971. Another 300 Mew PWR is under construction and is nearing completion. Front-end fuel cycle and engineering infrastructure facilities have been established to support continued operation of Karachi Nuclear Power Plant (KANUPP). To support the engineering activities it has established facilities for precision workshops, non-destructive testing center and a welding institute. (author)

  9. Nuclear cardiology in the UK: activity and practice 1997

    International Nuclear Information System (INIS)

    Prvulovich, Elizabeth; Metcalfe, Malcolm J.

    2002-01-01

    A questionnaire was sent to 251 nuclear medicine centres asking for details of nuclear medicine activity, and nuclear cardiology activity and practice in 1997. One hundred and seventy-one (68%) centres replied. Nuclear medicine activity was estimated at 11.8 studies/1,000 population/year, and 9.5% of these studies were within cardiology (1.12 studies/1,000/year). Myocardial perfusion imaging (MPI) studies accounted for 77% and radionuclide ventriculography (RNV) for 22% of all nuclear cardiology. On a national basis this represents activity levels of 0.86 and 0.25 studies/1,000/year for MPI and RNV, respectively. Of the 171 responding centres, 102 (60%) performed MPI studies and 81 (79%) of these reported that activity was increasing. However, MPI activity was unevenly distributed between hospitals. Two centres accounted for 13% of total MPI; others had far lower activity rates, and 51/102 (50%) centres performed less than 200 MPI studies/year. Comparison with previous surveys showed that nuclear medicine activity had almost doubled since 1990 (it was 6.0 studies/1,000 population in 1990, 9.3 studies/1,000 in 1994 and 11.8 studies/1,000 in 1997). Over the same period, nuclear cardiology activity had also risen, the greatest increase being seen for the last 3 years (it was 0.7 studies/1,000 population in 1990, 0.82 studies/1,000 in 1994 and 1.12 studies/1,000 in 1997). Despite these encouraging figures, MPI activity for 1997 remained well below that recommended by the British Cardiac Society in 1994 (2.6 studies/1,000/year) as adequate to serve the needs of patients with cardiac disease in the UK; it was also below the European average activity for the same year (2.2 studies/1,000/year). The anticipated increased workload for nuclear cardiology is encouraging despite the wide and varied practice of nuclear cardiology around the UK. The nuclear medicine community now needs to address the issues that will prevent it keeping up with demand, such as restricted camera

  10. The role of governmental authorities in the surveillance activities for quality assurance of nuclear power plants

    International Nuclear Information System (INIS)

    Koutsky, J.; Hrdlicka, Z.; Beranek, J.; Becvar, J.

    1982-01-01

    The paper deals with the legal and organizational aspects as well as with the principles and procedures of the quality assurance (QA) system for particular equipment of nuclear power plants in Czechoslovakia, and the role of governmental authorities in surveillance activities. The basic governmental document is the Decree No.5 (1979) of the Czechoslovak Atomic Energy Commission (CzAEC) on the QA of particular equipment in nuclear power plants with regard to nuclear safety. It is divided into ten sections: opening provisions; classification of the particular equipment; QA programmes; procedures of final elaboration of QA programme documentation; QA principles; QA during design; QA during manufacture, procurement, installation and commissioning; in-service inspection; QA during repair and modifications; and concluding provisions. Governmental surveillance is based on Governmental Resolution No.195 (1977). According to this resolution, inspection must be carried out by an organization which is independent of the manufacturing and operating organizations. This inspection is performed by the Czechoslovak Atomic Energy Commission (for nuclear safety) and by the Czech Safety Work Office and the Slovak Safety Work Office (for technical safety), together with subordinated regional divisions. The activities of these authorities are discussed. (author)

  11. Waste management, decommissioning and environmental restoration for Canada's nuclear activities. Proceedings

    International Nuclear Information System (INIS)

    2011-01-01

    The Canadian Nuclear Society conference on Waste Management, Decommissioning and Environmental Restoration for Canada's Nuclear Activities was held in Toronto, Ontario, Canada on September 11-14, 2011. The conference provided a forum for discussion of the status and proposed future directions of technical, regularly, environmental, social and economic aspects of radioactive waste management, nuclear facility decommissioning, and environmental restoration activities for Canadian nuclear facilities. The conference included both plenary sessions and sessions devoted to more detailed technical issues. The plenary sessions were focussed on three broad themes: the overall Canadian program; low and intermediate waste; and, international perspectives. Topics of the technical sessions included: OPG's deep geologic repository for low and intermediate level waste; stakeholder interactions; decommissioning projects; uranium mine waste management; used fuel repository - design and safety assessment; federal policies, programs and oversight; regulatory considerations; aboriginal traditional knowledge; geological disposal - CRL site classification; geological disposal - modelling and engineered barriers; Port Hope Area Initiative; waste characterization; LILWM - treatment and processing; decommissioning projects and information management; international experience; environmental remediation; fuel cycles and waste processing.

  12. Sensitive nuclear activities in certain free world countries

    International Nuclear Information System (INIS)

    1986-01-01

    A concise, ready reference is provided for use in reviewing license applications for exporting to several countries for possible need of referral to DOE. For each country, nuclear explosive and sensitive nuclear activities, such as enrichment, reprocessing, heavy water production, and fabrication of fuel containing plutonium, are listed, as well as the organizations and installations responsible for such activities. Some activities are also included that are not sensitive but are closely related and could easily lead to sensitive activities. The countries covered are: Australia, Belgium, Canada, Denmark, Federal Republic of Germany, France, Greece, Iceland, Italy, Japan, Luxembourg, the Netherlands, New Zealand, Norway, Portugal, Turkey, and the United States

  13. Evolution of nuclear security regulatory activities in Brazil

    International Nuclear Information System (INIS)

    Mello, Luiz A. de; Monteiro Filho, Joselio S.; Belem, Lilia M.J.; Torres, Luiz F.B.

    2009-01-01

    The changing of the world scenario in the last 15 years has increased worldwide the concerns about overall security and, as a consequence, about the nuclear and radioactive material as well as their associated facilities. Considering the new situation, in February 2004, the Brazilian National Nuclear Energy Commission (CNEN), decided to create the Nuclear Security Office. This Office is under the Coordination of Nuclear Safeguards and Security, in the Directorate for Safety, Security and Safeguards (Regulatory Directorate). Before that, security regulation issues were dealt in a decentralized manner, within that Directorate, by different licensing groups in specific areas (power reactors, fuel cycle facilities, radioactive facilities, transport of nuclear material, etc.). This decision was made in order to allow a coordinated approach on the subject, to strengthen the regulation in nuclear/radioactive security, and to provide support to management in the definition of institutional security policies. The CNEN Security Office develops its work based in the CNEN Physical Protection Regulation for Nuclear Operational Units - NE-2.01, 1996, the Convention on the Physical Protection of Nuclear Material and the IAEA Nuclear Security Series . This paper aims at presenting the activities developed and the achievements obtained by this new CNEN office, as well as identifying the issues and directions for future efforts. (author)

  14. The national law on nuclear activity: some consequences

    International Nuclear Information System (INIS)

    Gonzalez Acosta, G.

    1997-01-01

    This article describes the contents of the new National Law on Nuclear Activities of the Argentine Republic, analysing the functions of the National Atomic Energy Commission (CNEA), the Nuclear Regulatory Authority (ARN) (former National Board of Nuclear Regulation -ENREN) and the privatisation of the nuclear power generation performed by the enterprise Nucleoelectrica Argentina S.A. (NASA). It also includes some comments about political and legislative records of the Law in the framework of the Nation's reorganization undertaken by the National Government for the privatisation of the rendering of public services, such as the production of energy and related activities. The Law was approved by Law 24.804 of April 2, 1997, and published in the Official Bulletin of the Argentine Republic on April 25, 1997. In accordance with the provisions of this Law, the National Government, through the above mentioned organisations, will fix the nuclear policy and the functions of research, development, surveillance and control of the nuclear activity. Also, as part of the execution of the nuclear policy, all the obligations accepted by Argentina as signatory party to the Treaty for the Prohibition of Nuclear Weapons in Latin America and the Caribbean (Tlatelolco Treaty), the Treaty on Non-Proliferation of Nuclear Weapons (TNP), the Agreement between the Argentine Republic and the Federative Republic of Brazil through the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials (ABACC) and the International Atomic Energy Agency (IAEA) to enforce Safeguards, in addition to the commitments signed by Argentina as a member of the Suppliers Group and the National Control System for Sensitive Exports, shall be met [es

  15. Classification of Ilex species based on metabolomic fingerprinting using nuclear magnetic resonance and multivariate data analysis.

    Science.gov (United States)

    Choi, Young Hae; Sertic, Sarah; Kim, Hye Kyong; Wilson, Erica G; Michopoulos, Filippos; Lefeber, Alfons W M; Erkelens, Cornelis; Prat Kricun, Sergio D; Verpoorte, Robert

    2005-02-23

    The metabolomic analysis of 11 Ilex species, I. argentina, I. brasiliensis, I. brevicuspis, I. dumosavar. dumosa, I. dumosa var. guaranina, I. integerrima, I. microdonta, I. paraguariensis var. paraguariensis, I. pseudobuxus, I. taubertiana, and I. theezans, was carried out by NMR spectroscopy and multivariate data analysis. The analysis using principal component analysis and classification of the (1)H NMR spectra showed a clear discrimination of those samples based on the metabolites present in the organic and aqueous fractions. The major metabolites that contribute to the discrimination are arbutin, caffeine, phenylpropanoids, and theobromine. Among those metabolites, arbutin, which has not been reported yet as a constituent of Ilex species, was found to be a biomarker for I. argentina,I. brasiliensis, I. brevicuspis, I. integerrima, I. microdonta, I. pseudobuxus, I. taubertiana, and I. theezans. This reliable method based on the determination of a large number of metabolites makes the chemotaxonomical analysis of Ilex species possible.

  16. The development of an automatic classification system of nuclear power plant states

    International Nuclear Information System (INIS)

    Mitomo, Nobuo; Matsuoka, Takeshi

    2000-01-01

    For the future autonomous plant, automatic control and diagnostics are being incorporated and operators are mainly engaged in the high levels of diagnosis and decision-making in emergencies. Therefore these matters will be performed through the Man-Machine Interface(MMI). Ship Research Institute has been carrying out the research on the MMI system for autonomous power plants. The automatic classification system of plant states is one of the functions of this MMI and the system utilizes COBWEB, which is known as a way of clustering data to acquire concepts. In this paper, many plant states produced by a plant simulator we examined in order to confirm the effectiveness of this system. The system has well classified plant states produced by a plant simulator. (author)

  17. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - United States

    International Nuclear Information System (INIS)

    2015-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment (Special nuclear material; Source material; By-product material; Agreement state programmes); 4. Nuclear installations (Initial licensing; Operation and inspection, including nuclear safety; Operating licence renewal; Decommissioning; Emergency response); 5. Radiological protection (Protection of workers; Protection of the public); 6. Radioactive waste management (High-level waste; Low-level waste; Disposal at sea; Uranium mill tailings; Formerly Utilized Sites Remedial Action Program - FUSRAP); 7. Non-proliferation and exports (Exports of source material, special nuclear material, production or utilisation facilities and sensitive nuclear technology; Exports of components; Exports of by-product material; Exports and imports of radiation sources; Conduct resulting in the termination of exports or economic assistance; Subsequent arrangements; Technology exports; Information and restricted data); 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Nuclear Regulatory Commission - NRC; Department of Energy - DOE; Department of Labor - DOL; Department of Transportation - DOT; Environmental Protection Agency - EPA); 2. Public and semi-public agencies: A. Cabinet-level departments (Department of

  18. Applied nuclear physics group - activities report. 1977-1997; Grupo de fisica nuclear aplicada - relatorio de atividades. 1977-1997

    Energy Technology Data Exchange (ETDEWEB)

    Appoloni, Carlos Roberto

    1998-06-01

    This report presents the activities conducted by the Applied Nuclear Physics group of the Londrina State University - Applied Nuclear Physics Laboratory - Brazil, from the activities beginning (1977) up to the end of the year 1997.

  19. Improving Oil Palm Classification in the Peruvian Amazon by Combining Active and Passive Remote Sensing Data

    Science.gov (United States)

    Gutierrez-Velez, V. H.; DeFries, R. S.

    2011-12-01

    Oil palm expansion has led to clearing of extensive forest areas in the tropics. However quantitative assessments of the magnitude of oil palm expansion to deforestation have been challenging due in large part to the limitations presented by conventional optical data sets for discriminating plantations from forests and other tree cover vegetations. Recently available information from active remote sensors has opened the possibility of using these data sources to overcome these limitations. The purpose of this analysis is to evaluate the accuracy of oil palm classification when using ALOS/PALSAR active satellite data in conjunction with Landsat information, compared to the use of Landsat data only. The analysis takes place in a focused region around the city of Pucallpa in the Ucayali province of the Peruvian Amazon for the year 2010. Oil palm plantations were separated in five categories consisting of four age classes (0-3, 3-5, 5-10 and > 10 yrs) and an additional class accounting for degraded plantations older than 15 yr. Other land covers were water bodies, unvegetated land, short and tall grass, fallow, secondary vegetation, and forest. Classifications were performed using random forests. Training points for calibration and validation consisted of 411 polygons measured in areas representative of the land covers of interest and totaled 6,367 ha. Overall classification accuracy increased from 89.9% using only Landsat data sets to 94.3% using both Landast and ALOS/PALSAR. Both user's and producer's accuracy increased in all classes when using both data sets except for producer's accuracy in short grass which decreased by 1%. The largest increase in user's accuracy was obtained in oil palm plantations older than 10 years from 62 to 80% while producer's accuracy improved the most in plantations in age class 3-5 from 63 to 80%. Results demonstrate the suitability of data from ALOS/PALSAR and other active remote sensors to improve classification of oil palm

  20. Multi-element neutron activation analysis and solution of classification problems using multidimensional statistics

    International Nuclear Information System (INIS)

    Vaganov, P.A.; Kol'tsov, A.A.; Kulikov, V.D.; Mejer, V.A.

    1983-01-01

    The multi-element instrumental neutron activation analysis of samples of mountain rocks (sandstones, aleurolites and shales of one of gold deposits) is performed. The spectra of irradiated samples are measured by Ge(Li) detector of the volume of 35 mm 3 . The content of 22 chemical elements is determined in each sample. The results of analysis serve as reliable basis for multi-dimensional statistic information processing, they constitute the basis for the generalized characteristics of rocks which brings about the solution of classification problem for rocks of different deposits

  1. High Classification Rates for Continuous Cow Activity Recognition using Low-cost GPS Positioning Sensors and Standard Machine Learning Techniques

    DEFF Research Database (Denmark)

    Godsk, Torben; Kjærgaard, Mikkel Baun

    2011-01-01

    activities. By preprocessing the raw cow position data, we obtain high classification rates using standard machine learning techniques to recognize cow activities. Our objectives were to (i) determine to what degree it is possible to robustly recognize cow activities from GPS positioning data, using low...... and their activities manually logged to serve as ground truth. For our dataset we managed to obtain an average classification success rate of 86.2% of the four activities: eating/seeking (90.0%), walking (100%), lying (76.5%), and standing (75.8%) by optimizing both the preprocessing of the raw GPS data...

  2. The Report on Activities of the Nuclear Regulatory Authority of the Slovak Republic. Annual Report 2012

    International Nuclear Information System (INIS)

    2013-04-01

    A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (UJD SR) in 2012 is presented. These activities are reported under the headings: Foreword; (1) Legislative activities; (2) Regulatory Activities; (3) Nuclear safety of nuclear power plants; (4) Stress tests on the nuclear power plants; (5) Nuclear Materials in SR; (6) Building Authority; (7) Emergency planning and preparedness; (8) International activities; (9) Public communication; (10) Nuclear Regulatory Authority of the Slovak Republic; (11) Attachments; (12) Abbreviations used.

  3. General activities of JAERI nuclear data center and Japanese nuclear data committee

    International Nuclear Information System (INIS)

    Fukahori, Tokio

    1999-01-01

    The nuclear data center of Japan Atomic Energy Research Institute (JAERI/NDC) is playing the role of Japanese domestic nuclear data center and gateway to foreign data centers. As the domestic nuclear data center, activities of JAERI/NDC are 1) compiling the Japanese Evaluated Nuclear Data Library (JENDL) for both general and special purposes, 2) importing and exporting nuclear data, 3) nuclear data services for the domestic users, and 4) organizing japanese Nuclear Data Committee (JNDC) as a secretariat. Compiled JENDL General Purpose Files up to now are JENDL-1, 2, 3, 3.1 and 3.2. The data for 340 nuclei in the energy range from 10 -5 eV to 20 MeV are available in JENDL-3.2. JENDL Special Purpose Files were also prepared in order to meet the requests from the specified application fields. JNDC has about 140 members. JNDC consists of Main Committee, Steering Committee, Subcommittee on Nuclear Data, Subcommittee on Reactor Constants, Subcommittee on Nuclear Fuel Cycle and Standing Groups. Above subcommittees are performing essential evaluation for the files described above, checking the JENDL files through the benchmark and integral testing as well as considering the standard group constant, and considering about evaluation of decay heat and nuclide generation/depletion and fission product yields. (author)

  4. INDUCED NUCLEAR ACTIVITY IN GALAXY PAIRS

    OpenAIRE

    F. J. Hernández-Ibarra; D. Dultzin; Y. Krongold; A. Del Olmo; J. Perea

    2011-01-01

    Analizamos espectros del núcleo de 893 galaxias entre pares de galaxias y galaxias aisladas de la muestra SLOAN (DR7). Estos pares pueden ser divididos en tres grupos: S+S, E+E y E+S de acuerdo con el catálago de pares aislados de galaxias de Karachentsev (KPG). También analizamos dos muestras de galaxias aisladas: el catálogo de galaxias aisladas de Karachentseva (CIG) y la muestra de galaxias aisladas en el hemisferio norte de Varela. Estudiamos la incidencia de la actividad nuclear en cada...

  5. Sensor Fusion for Nuclear Proliferation Activity Monitoring

    Energy Technology Data Exchange (ETDEWEB)

    Adel Ghanem, Ph D

    2007-03-30

    The objective of Phase 1 of this STTR project is to demonstrate a Proof-of-Concept (PoC) of the Geo-Rad system that integrates a location-aware SmartTag (made by ZonTrak) and a radiation detector (developed by LLNL). It also includes the ability to transmit the collected radiation data and location information to the ZonTrak server (ZonService). The collected data is further transmitted to a central server at LLNL (the Fusion Server) to be processed in conjunction with overhead imagery to generate location estimates of nuclear proliferation and radiation sources.

  6. Feature selection in classification of eye movements using electrooculography for activity recognition.

    Science.gov (United States)

    Mala, S; Latha, K

    2014-01-01

    Activity recognition is needed in different requisition, for example, reconnaissance system, patient monitoring, and human-computer interfaces. Feature selection plays an important role in activity recognition, data mining, and machine learning. In selecting subset of features, an efficient evolutionary algorithm Differential Evolution (DE), a very efficient optimizer, is used for finding informative features from eye movements using electrooculography (EOG). Many researchers use EOG signals in human-computer interactions with various computational intelligence methods to analyze eye movements. The proposed system involves analysis of EOG signals using clearness based features, minimum redundancy maximum relevance features, and Differential Evolution based features. This work concentrates more on the feature selection algorithm based on DE in order to improve the classification for faultless activity recognition.

  7. Ordinary and Activated Bone Grafts: Applied Classification and the Main Features

    Directory of Open Access Journals (Sweden)

    R. V. Deev

    2015-01-01

    Full Text Available Bone grafts are medical devices that are in high demand in clinical practice for substitution of bone defects and recovery of atrophic bone regions. Based on the analysis of the modern groups of bone grafts, the particularities of their composition, the mechanisms of their biological effects, and their therapeutic indications, applicable classification was proposed that separates the bone substitutes into “ordinary” and “activated.” The main differential criterion is the presence of biologically active components in the material that are standardized by qualitative and quantitative parameters: growth factors, cells, or gene constructions encoding growth factors. The pronounced osteoinductive and (or osteogenic properties of activated osteoplastic materials allow drawing upon their efficacy in the substitution of large bone defects.

  8. Summary of aerospace and nuclear engineering activities

    Science.gov (United States)

    1988-01-01

    The Texas A&M Nuclear and Aerospace engineering departments have worked on five different projects for the NASA/USRA Advanced Design Program during the 1987/88 year. The aerospace department worked on two types of lunar tunnelers that would create habitable space. The first design used a heated cone to melt the lunar regolith, and the second used a conventional drill to bore its way through the crust. Both used a dump truck to get rid of waste heat from the reactor as well as excess regolith from the tunneling operation. The nuclear engineering department worked on three separate projects. The NEPTUNE system is a manned, outer-planetary explorer designed with Jupiter exploration as the baseline mission. The lifetime requirement for both reactor and power-conversion systems was twenty years. The second project undertaken for the power supply was a Mars Sample Return Mission power supply. This was designed to produce 2 kW of electrical power for seven years. The design consisted of a General Purpose Heat Source (GPHS) utilizing a Stirling engine as the power conversion unit. A mass optimization was performed to aid in overall design. The last design was a reactor to provide power for propulsion to Mars and power on the surface. The requirements of 300 kW of electrical power output and a mass of less than 10,000 Rg were set. This allowed the reactor and power conversion unit to fit within the Space Shuttle cargo bay.

  9. Nuclear and atomic data activities in Malaysia

    International Nuclear Information System (INIS)

    Ahmad Suhaimi; Gui Ah Auu.

    1996-01-01

    Nuclear and atomic data measurements and calculations in Malaysia are mostly done at the National University of Malaysia (UKM) and Malaysian Institute for Nuclear Technology Research (MINT). At UKM, (n,t) reactions for 6 Li, 10 B and reactor structural materials have been investigated using liquid scintillation counting and gas phase β - anticoincidence counting. Tritium productions via ternary fission in 235 U and 232 Th are measured using vacuum extraction and β - counting of accumulated tritium. In addition, γ-ray attenuation coefficients on cooking oil, petroleum products, building materials, natural rubber and tropical woods have also been measured. Calculations to determine μ-value according to Hubbel method are initiated. Some collaborative works between UKM and Juelich Research Centre of Germany have been completed while others are in progress namely; (n,t) reactions study on 9 Be, 10 B, 14 N and also measurement of excitation functions and isomer ratios of fast neutron induced reactions on Zn, Ga and Ge. At MINT, the 1-D diffusion code TRIGAM and the 2-D EXTERMINATOR code are used for neutronic analyses of TRIGA Reactor. The radiation shielding calculation have been carried out by using ANISN, a 1-D discrete ordinates code. Some preliminary calculations for the fuel transfer cask using ORIGEN2 and MERCURE-4 have been performed. Response functions for neutrons and the associated secondary photons for neutron skyshine analyses have been generated using the MCNP code. (author)

  10. Chicago section activities to enhance public acceptance of nuclear power

    International Nuclear Information System (INIS)

    Snyder, T.L.; Keffer, J.W.

    1992-01-01

    The Chicago section of the American Nuclear Society (ANS) is an active organization with ∼450 members. The local section territory encompasses northern Illinois and includes in its territory all six of Commonwealth Edison Company's (CECo's) nuclear generating stations as well as Argonne National Laboratory (ANL). Included in the territory are several large engineering firms - ABB Impell, Bechtel, Fluor Daniel, and Sargent ampersand Lundy. The national headquarters of the ANS is also located within the local section boundaries. All these organizations are represented in the local section membership and provide access to abundant technical resources that can be used to enhance public acceptance of nuclear power. An important attribute of any local section that enables it to perform interesting programs and be active in the community is its financial resources. The Chicago section has a strong financial base because of its ability to raise funds by participating in and sponsoring ANS topical and other meetings. For instance, in 1991, they sponsored and were actively involved in the Emergency Preparedness Topical Meeting held in Chicago. In 1992, they were actively involved in sponsoring the organizational activities of the ANS/ENS International Meeting, which will celebrate the 50th year of nuclear fission. The financial and technical resources of the Chicago section continue to contribute to a successful program of public education and public acceptance activities regarding the nuclear industry

  11. Classification of autistic individuals and controls using cross-task characterization of fMRI activity

    Directory of Open Access Journals (Sweden)

    Guillaume Chanel

    2016-01-01

    Full Text Available Multivariate pattern analysis (MVPA has been applied successfully to task-based and resting-based fMRI recordings to investigate which neural markers distinguish individuals with autistic spectrum disorders (ASD from controls. While most studies have focused on brain connectivity during resting state episodes and regions of interest approaches (ROI, a wealth of task-based fMRI datasets have been acquired in these populations in the last decade. This calls for techniques that can leverage information not only from a single dataset, but from several existing datasets that might share some common features and biomarkers. We propose a fully data-driven (voxel-based approach that we apply to two different fMRI experiments with social stimuli (faces and bodies. The method, based on Support Vector Machines (SVMs and Recursive Feature Elimination (RFE, is first trained for each experiment independently and each output is then combined to obtain a final classification output. Second, this RFE output is used to determine which voxels are most often selected for classification to generate maps of significant discriminative activity. Finally, to further explore the clinical validity of the approach, we correlate phenotypic information with obtained classifier scores. The results reveal good classification accuracy (range between 69% and 92.3%. Moreover, we were able to identify discriminative activity patterns pertaining to the social brain without relying on a priori ROI definitions. Finally, social motivation was the only dimension which correlated with classifier scores, suggesting that it is the main dimension captured by the classifiers. Altogether, we believe that the present RFE method proves to be efficient and may help identifying relevant biomarkers by taking advantage of acquired task-based fMRI datasets in psychiatric populations.

  12. Classification of autistic individuals and controls using cross-task characterization of fMRI activity

    Science.gov (United States)

    Chanel, Guillaume; Pichon, Swann; Conty, Laurence; Berthoz, Sylvie; Chevallier, Coralie; Grèzes, Julie

    2015-01-01

    Multivariate pattern analysis (MVPA) has been applied successfully to task-based and resting-based fMRI recordings to investigate which neural markers distinguish individuals with autistic spectrum disorders (ASD) from controls. While most studies have focused on brain connectivity during resting state episodes and regions of interest approaches (ROI), a wealth of task-based fMRI datasets have been acquired in these populations in the last decade. This calls for techniques that can leverage information not only from a single dataset, but from several existing datasets that might share some common features and biomarkers. We propose a fully data-driven (voxel-based) approach that we apply to two different fMRI experiments with social stimuli (faces and bodies). The method, based on Support Vector Machines (SVMs) and Recursive Feature Elimination (RFE), is first trained for each experiment independently and each output is then combined to obtain a final classification output. Second, this RFE output is used to determine which voxels are most often selected for classification to generate maps of significant discriminative activity. Finally, to further explore the clinical validity of the approach, we correlate phenotypic information with obtained classifier scores. The results reveal good classification accuracy (range between 69% and 92.3%). Moreover, we were able to identify discriminative activity patterns pertaining to the social brain without relying on a priori ROI definitions. Finally, social motivation was the only dimension which correlated with classifier scores, suggesting that it is the main dimension captured by the classifiers. Altogether, we believe that the present RFE method proves to be efficient and may help identifying relevant biomarkers by taking advantage of acquired task-based fMRI datasets in psychiatric populations. PMID:26793434

  13. Activities report of Instituto de Engenharia Nuclear - 1993

    International Nuclear Information System (INIS)

    1994-04-01

    This is an activities report of 1993 year from Nuclear Engineering Institute - IEN, Brazilian CNEN. It achieves research and development in science and technology in nuclear areas and correlative, generating knowledge, products and services in society benefit. Its major activities are: production and supply of 30 equipment for radioprotection and nuclear physics, and the project and construction of monitoring system of neutron flux and radioprotection of Triga reactor of CDTN; project and construction of an actuation/attenuation circuit system of ATWS (anticipated transient without scram) at Angra-1 nuclear power plant; obtention of rare earths; development and optimization of a computational program to three-dimensional fluid mechanic - NSD 3D; study of technical and economical feasibility to the implantation, at IEN, of a big size irradiator for the sterilization, using ionizing radiation, of hospital, pharmaceutical and cosmetic goods. (C.M.). 7 tabs, 2 graphs

  14. Background and future activities of PBNCC's nuclear training working group

    International Nuclear Information System (INIS)

    Chong Hun Rieh; Kunmo Chung; Hamlin, K.W.

    1987-01-01

    This paper presents a review of the background and activities of the nuclear training working group of the Pacific Basin Nuclear Cooperation Committee. The working group has examined various mechanisms for regional cooperation including the development of aregional catalog of training programs and the conceptualization of sharing training facilities among nuclear operators in the region. The working group has focused its attention on the exchange of information on the on-going training programs, operator training facilities, available resources for training assistance and proposed cooperative schemes. These activities are expected to continue and will provide invaluable information for nuclear power programs in the Pacific Basin region. The group also reviewed problems and issues associated with developing regional cooperation. (author)

  15. Background and future activities of PBNCC's nuclear training working group

    International Nuclear Information System (INIS)

    Rieh, C.H.; Chung, K.; Hamlin, K.W.

    1988-01-01

    This paper presents a review of the background and activities of the nuclear training working group of the Pacific Basin Nuclear Cooperation Committee. The working group has examined various mechanisms for regional cooperation including the development of a regional catalog of training programs and the conceptualization of sharing training facilities among nuclear operators in the region. The working group has focused its attention on the exchange of information on the on-going training programs, operator training facilities, available resources for training assistance and proposed cooperative schemes. These activities are expected to continue and will provide invaluable information for nuclear power programs in the Pacific Basin region. The group also reviewed problems and issues associated with developing regional cooperation

  16. Further activities of safety culture toward nuclear transportation industry

    International Nuclear Information System (INIS)

    Machida, Y.; Shimakura, D.

    2004-01-01

    On September 30, 1999, a criticality accident occurred at the uranium processing facility of the JCO Co. Ltd. (hereinafter referred to as ''JCO'') Tokai plant, located in Tokaimura, Ibaraki Prefecture. This was an unprecedented accident in Japan's history of peaceful use of nuclear power, resulting in three workers exposed to severe radiation, two of whom died, and the evacuation and enforced indoor confinement of local residents. Nuclear power suppliers must take personal responsibility for ensuring safety. In this connection, the electric power industry, heavy electric machinery manufacturers, fuel fabricators, and nuclear power research organizations gathered together to establish the Nuclear Safety Network (NSnet) in December 1999, based on the resolve to share and improve the level of the safety culture across the entire nuclear power industry and to assure that such an accident never occurs again. NSnet serves as a link between nuclear power enterprises, research organizations, and other bodies, based on the principles of equality and reciprocity. A variety of activities are pursued, such as diffusing a safety culture, implementing mutual evaluation among members, and exchanging safety-related information. Aiming to share and improve the safety culture throughout the entire nuclear power industry, NSnet thoroughly implements the principle of safety first, while at the same time making efforts to restore trust in nuclear power

  17. Stakeholder involvement in international conventions governing civil nuclear activities

    International Nuclear Information System (INIS)

    Emmerechts, Sam

    2017-01-01

    Mr Emmerechts explained that international conventions have varying positions on stakeholders and their involvement depending upon the intent of the legislator and the field they cover, ranging from a narrow to a broad interpretation. He addressed stakeholder involvement in two other international conventions governing civil nuclear activities, namely the Convention on Nuclear Safety, and the Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management (the Joint Convention), both concluded under the auspices of the International Atomic Energy Agency (IAEA). He noted that the Convention on Nuclear Safety remains a 'traditional' international legal instrument, focusing on governments and governmental bodies as the main stakeholders and limiting obligations regarding the involvement of the public and intergovernmental organisations to their receiving information and observing. Likewise, the Joint Convention limits obligations regarding public involvement to access to information, notably as to the siting of proposed facilities. However, he noted that in the European Union, the Directive on Nuclear Safety (2014/87/Euratom) and the Directive for the Safe Management of Spent Fuel and Radioactive Waste (2011/70/Euratom) have more advanced public participation requirements in nuclear decision making. Mr Emmerechts explained that the substantial differences between nuclear legislation and the Aarhus and Espoo Conventions with regards to public involvement requirements could partly be explained by the technicality of nuclear information and by issues related to nuclear security

  18. Nuclear data activities at the NEA Data Bank

    International Nuclear Information System (INIS)

    Hasegawa, A.; Henriksson, H.; Mompean, F.J.; Nordborg, C.; Rugama, Y.; Sartori, E.

    2008-01-01

    The OECD Nuclear Energy Agency (NEA) Data Bank is an international centre of reference for its member countries with respect to basic nuclear tools, such as computer codes and nuclear data. The Data Bank is part of an international network of data centres in charge of the compilation and dissemination of basic nuclear data. The NEA nuclear data services include the collection of data, validation and distribution of the Nuclear Data libraries via the NEA web-site, offering easy access to databases containing bibliographical and experimental information, as well as evaluated libraries, e.g., the Joint Evaluated Fission and Fusion (JEFF) library. The selection and distribution of chemical thermodynamic data for radioactive waste management applications is the subject of the Thermochemical Database Project (TDB), supported by 17 organisations in 12 member countries and co-ordinated by the NEA Data Bank. In support of data evaluation, and generation of project oriented data libraries, relevant computer codes in the field of nuclear models, experimental data processing and evaluated data processing are made available to experts with the support of the member countries. Large collections of benchmark experiments for data and code validation are also available from the NEA in areas such as criticality safety (ICSBEP), radiation shielding (SINBAD), fuel performance (IFPE) and reactor physics (IRPhE). The NEA Working Party on international nuclear data Evaluation Co-operation (WPEC) provides a framework for co-operative activities between the six major evaluation projects (BROND, CENDL, Endf, FENDL, JEFF and JENDL). (authors)

  19. Further activities of safety culture toward nuclear transportation industry

    Energy Technology Data Exchange (ETDEWEB)

    Machida, Y.; Shimakura, D. [NSnet, Tokyo (Japan)

    2004-07-01

    On September 30, 1999, a criticality accident occurred at the uranium processing facility of the JCO Co. Ltd. (hereinafter referred to as ''JCO'') Tokai plant, located in Tokaimura, Ibaraki Prefecture. This was an unprecedented accident in Japan's history of peaceful use of nuclear power, resulting in three workers exposed to severe radiation, two of whom died, and the evacuation and enforced indoor confinement of local residents. Nuclear power suppliers must take personal responsibility for ensuring safety. In this connection, the electric power industry, heavy electric machinery manufacturers, fuel fabricators, and nuclear power research organizations gathered together to establish the Nuclear Safety Network (NSnet) in December 1999, based on the resolve to share and improve the level of the safety culture across the entire nuclear power industry and to assure that such an accident never occurs again. NSnet serves as a link between nuclear power enterprises, research organizations, and other bodies, based on the principles of equality and reciprocity. A variety of activities are pursued, such as diffusing a safety culture, implementing mutual evaluation among members, and exchanging safety-related information. Aiming to share and improve the safety culture throughout the entire nuclear power industry, NSnet thoroughly implements the principle of safety first, while at the same time making efforts to restore trust in nuclear power.

  20. IAEA activities in nuclear power plant personnel training and qualification

    International Nuclear Information System (INIS)

    Mautner-Markhof, F.

    1993-01-01

    Training to achieve and maintain the qualification and competence of nuclear power personnel is essential for safe and economic nuclear power. Technical Cooperation Meeting on Training-Related Activities for Nuclear Power Plant (NPP) Personnel in the countries of Central and Eastern Europe (CEEC) and of the former Soviet Union (FSU) has as its main objective the identification, through information exchange and discussion, of possible Technical Cooperation (TC) projects to assist Member States in meeting NPP personnel training needs and priorities, including the enhancing of training capabilities

  1. Third Party Liability governing Dangerous and Nuclear Activities

    International Nuclear Information System (INIS)

    Di Martino, Vittorio.

    1979-01-01

    The introductory chapters of this book analyse the concept of fault as a basis for third party liability and the evolution of jurisprudence and doctrine towards the concept of absolute liability. The following part covers the Italian system of liability for hazardous activities. The nuclear third party liability system is then analysed according to existing international conventions and nuclear legislation in several countries. The Appendix contains various legislative and regulatory texts on nuclear third party liability in Italy and in other countries which provide for special legislation in this field. (NEA) [fr

  2. Activities of the PNC Nuclear Safety Working Group

    International Nuclear Information System (INIS)

    Kato, W.Y.

    1991-01-01

    The Nuclear Safety Working Group of the Pacific Nuclear Council promotes nuclear safety cooperation among its members. Status of safety research, emergency planning, development of lists of technical experts, severe accident prevention and mitigation have been the topics of discussion in the NSWG. This paper reviews and compares the severe accident prevention and mitigation program activities in some of the areas of the Pacific Basin region based on papers presented at a special session organized by the NSWG at an ANS Topical Meeting as well as papers from other sources

  3. Nuclear power reactor safety research activities in CIAE

    International Nuclear Information System (INIS)

    Pu Shendi; Huang Yucai; Xu Hanming; Zhang Zhongyue

    1994-01-01

    The power reactor safety research activities in CIAE are briefly reviewed. The research work performed in 1980's and 1990's is mainly emphasised, which is closely related to the design, construction and licensing review of Qinshan Nuclear Power Plant and the safety review of Guangdong Nuclear Power Station. Major achievements in the area of thermohydraulics, nuclear fuel, probabilistic safety assessment and severe accident researches are summarized. The foreseeable research plan for the near future, relating to the design and construction of 600 MWe PWR NPP at Qinshan Site (phase II development) is outlined

  4. Past, present and future of the nuclear activities in Argentina

    International Nuclear Information System (INIS)

    Cirimelo, Roberto O.

    2001-01-01

    A short history is given of the activities of the National Atomic Energy Commission. The present program in the field of the fuel cycle, material sciences, waste management, nuclear reactors, radioisotope production, radiation and radioisotope applications, research and development and education and training is described. The objectives and activities of the companies related to the National Atomic Energy Commission are also outlined

  5. A review of the nuclear safety activities in Italy

    International Nuclear Information System (INIS)

    Merelli, A.

    1989-01-01

    A review of research programs carried out in Italy in the field of nuclear reactor safety was done in 1986, in the frame of the activities of the Commission of the European Communities, the International Energy Agency and the Nuclear Energy Agency of the Organization for Economic Cooperation and Development. The report contains information on these programs, as well as information on the organization of safety research in Italy and the evolution of safety research programs

  6. Summary of US activities in commercial nuclear airborne waste management

    International Nuclear Information System (INIS)

    Groenier, W.S.

    1985-01-01

    Most of the US nuclear air cleaning technology development in recent years has addressed advanced retention concepts in response to environmental concerns. In particular, efforts have centered in the fuel reprocessing portion of the nuclear fuel cycle. Although generally well developed on a cold engineering scale, the individual retention steps for 3 H, 14 C, 85 Kr, and 129 I) must yet be demonstrated in an active integrated facility. Fixation and disposal technologies for retained airborne constituents are generally less well developed

  7. Institute of Nuclear Physics, mission and scientific research activities

    International Nuclear Information System (INIS)

    Zoto, J.; Zaganjori, S.

    2004-01-01

    The Institute of Nuclear Physics (INP) was established in 1971 as a scientific research institution with main goal basic scientific knowledge transmission and transfer the new methods and technologies of nuclear physics to the different economy fields. The organizational structure and main research areas of the Institute are described. The effects of the long transition period of the Albanian society and economy on the Institution activity are also presented

  8. The Classification of Sri Lankan Medicinal Herbs: An Extensive Comparison of the Antioxidant Activities

    Directory of Open Access Journals (Sweden)

    Viduranga Y. Waisundara

    2014-07-01

    Full Text Available Sri Lanka has variety of herbs whose effectiveness has been proven across many generations. These herbs are classified into two groups — ‘heating’ and ‘cooling’, based on the physiological reactions upon consumption. Application-wise, the ‘cooling’ herbs are administered to patients contracted with diabetes, imbalances in the lipid profile, or even cancer. However, this classification has been misunderstood due to inconsistent interpretations and lack of scientific reasoning. This study systematically determines the rationale behind this classification, by specifically evaluating the antioxidant activity of 18 herbs — nine herbs from each category. The oxygen radical absorbance capacities, DPPH radical scavenging activities, and the total phenolic contents are analyzed here. The ‘heating’ herbs have a comparatively lower antioxidant potential than the ‘cooling’ herbs. The total phenolic contents correlate with the antioxidant values. It can be hypothesized that the high antioxidant potential of the ‘cooling’ herbs may have been responsible for the containment of the diseases mentioned previously.

  9. Real-time classification of auditory sentences using evoked cortical activity in humans

    Science.gov (United States)

    Moses, David A.; Leonard, Matthew K.; Chang, Edward F.

    2018-06-01

    Objective. Recent research has characterized the anatomical and functional basis of speech perception in the human auditory cortex. These advances have made it possible to decode speech information from activity in brain regions like the superior temporal gyrus, but no published work has demonstrated this ability in real-time, which is necessary for neuroprosthetic brain-computer interfaces. Approach. Here, we introduce a real-time neural speech recognition (rtNSR) software package, which was used to classify spoken input from high-resolution electrocorticography signals in real-time. We tested the system with two human subjects implanted with electrode arrays over the lateral brain surface. Subjects listened to multiple repetitions of ten sentences, and rtNSR classified what was heard in real-time from neural activity patterns using direct sentence-level and HMM-based phoneme-level classification schemes. Main results. We observed single-trial sentence classification accuracies of 90% or higher for each subject with less than 7 minutes of training data, demonstrating the ability of rtNSR to use cortical recordings to perform accurate real-time speech decoding in a limited vocabulary setting. Significance. Further development and testing of the package with different speech paradigms could influence the design of future speech neuroprosthetic applications.

  10. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Germany

    International Nuclear Information System (INIS)

    2011-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment (Definitions; Licensing requirements); 4. Nuclear installations (Licensing regime; Protection of the environment against radiation effects; Emergency response; Surveillance of installations and activities); 5. Trade in nuclear materials and equipment; 6. Radiation protection (General; Principal elements of the Radiation Protection Ordinance; Additional radiation protection norms); 7. Radioactive waste management (Atomic Energy Act 2002; Radiation Protection Ordinance; International obligations); 8. Non-proliferation and physical protection (Non-proliferation regime; Physical protection regime); 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities: Federal authorities (Federal Minister for the Environment, Nature Conservation and Nuclear Safety, Federal Minister for Education and Research, Federal Minister of Finance, Federal Minister of Transport, Building and Urban Affairs, Federal Minister for Economy and Technology, Federal Minister of Defence, Federal Office for Radiation Protection - BfS, Federal Office of Economics and Export Control); Authorities of the Laender; 2. Advisory bodies (Reactor Safety Commission - RSK; Radiation Protection Commission - SSK; Disposal Commission - ESK; Nuclear Technology

  11. EPRI expert system activities for nuclear utility industry application

    International Nuclear Information System (INIS)

    Naser, J.A.

    1990-01-01

    This paper reports on expert systems which have reached a level of maturity where they offer considerable benefits for the nuclear utility industry. The ability of expert systems to enhance expertise makes them an important tool for the nuclear utility industry in the areas of engineering, operations and maintenance. Benefits of expert system applications include comprehensive and consistent reasoning, reduction of time required for activities, retention of human expertise and ability to utilize multiple experts knowledge for an activity. The Electric Power Research Institute (EPRI) has been performing four basic activities to help the nuclear industry take advantage of this expert system technology. The first is the development of expert system building tools which are tailored to nuclear utility industry applications. The second is the development of expert system applications. The third is work in developing a methodology for verification and validation of expert systems. The last is technology transfer activities to help the nuclear utility industry benefit from expert systems. The purpose of this paper is to describe the EPRI activities

  12. A project in support of international nuclear cooperation activities

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Jeongkong; Kim, Myungro; Choi, Pyunghoon; Kim, Kyungpyo; Jung, Sunghyon; Park, Jiyeon; Eom, Jaesik; Kim, Wangkeun; Chung, Byungsun

    2011-12-15

    This study contains the work undertaken to promote multilateral cooperation within the framework of international nuclear related organizations and regional cooperative agreements and the relevant forums, to enhance bilateral cooperation with foreign nuclear related research institutes as well as to promote cooperation through the exchange of foreign scientists. As for multilateral cooperation, activities for promoting cooperation within the IAEA and regional cooperative frameworks are introduced. Regarding bilateral cooperation, activities for concluding arrangements and MOUs with foreign research institutes and for participation in joint nuclear coordinating committee meetings between Korea and other countries are presented. For promoting personnel exchanges, activities for inviting and utilizing foreign scientists and mutual discussions with foreign experts, who have visited KAERI, are also described. Continuous efforts to contributing towards the international community through utilizing Korea's experience gained in the process of technical self-reliance and development of human resources are needed. Also efforts to establish the foundation of international cooperation and to make inroad into overseas nuclear markets for export of our nuclear technologies should be made. Meanwhile in the bilateral cooperation, we need to beef up cooperation with U. S. A. and Canada through the joint committee for the joint export to third countries. It is expected that this study would be utilized as a basic material for the international cooperation of nuclear energy, especially for the KAERI's international cooperation in an effective way.

  13. Japan's nuclear PA activity in local governments

    International Nuclear Information System (INIS)

    Fujii, Nobuyuki

    1995-01-01

    This presentation emphasises some points of PA activities, based on the experience of 'cooperation projects for local governments'. Local governments distribute the public information directly to the residents. This is very important because officers of the local government can be the opinion leaders of the region. Local government exist very close to the residents, while the central government is a distant and faceless existence for the local people. It is believed that the local governments play an imperative role in PA activities. In other words, we must further utilize the organizations and functions of the local governments to implement PA activities. In conclusion, three recommendations are offered. Firstly, enough budget and authority should be given to the local governments as far as PA activities in their areas are concerned, and most of such activities should be entrusted to the local governments. Local governments should place more public relations officers, and continue the manpower development. Second, with regard to highly technical or specialized issues which a local governments cannot treat alone, related organizations like JAERO should support their PA activities. Third, such related organizations should also cooperate with local government including assistance in providing know-how, when their public information activities focus on educators, journalists, or the women. These three points should be given due consideration in our cooperation projects for the local governments, and JAERO is doing its best every day

  14. Medical activities at nuclear disaster. Experience in the accident of Fukushima nuclear power plant

    International Nuclear Information System (INIS)

    Hasegawa, Arifumi

    2013-01-01

    The Great East Japan Earthquake brought multiple disaster resulting nuclear accident at Fukushima. Existing medical system for emergency radiation exposure did not work well. Present medical system for the nuclear disaster is maintained temporary with supports by teams from regions other than Fukushima Pref. The radiation protection action must be both for the public and the medical persons. Medical activities for nuclear disaster are still in progress now. Medical system for radiation exposure should be maintained in future for works of decommissioning of reactors. Problems, however, may exist in economy and education of medical personnel. (K.Y.)

  15. Activities of Nuclear Regulatory Authority and safety of nuclear facilities in the Slovak Republic in 1993

    International Nuclear Information System (INIS)

    1994-04-01

    A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (NRA SR) in 1993 is presented. These activities are reported under the headings: (1) Introduction; (2) Regulatory activities at nuclear power plants units in operation; (2.1) Nuclear power plant SEP-EBO V-1; (4) Selected operation events and safety assessment in NPP SEP-EBO V-1; (2.2) Safety assessment of NPP SEP-EBO V-2; (3) Results of regulatory activities at the decommissioning of NPP A-1; (4) Regulatory activities at units under construction SEP-EMO - NPP Mochovce; (5) Further regulatory activities. (5.1) Preparation of designated personnel; (5.2) Inspection and accountancy of nuclear material; (5.3) Security provisions; (5.4) Accounted items and double use items; (5.5) Problem of radioactive wastes; (6.1) International co-operation activities of NRA; (6.2) Emergency planning; (6.3) International activities for quality enhancement of national supervision; (7) Conclusion [sk

  16. A Robust and Device-Free System for the Recognition and Classification of Elderly Activities.

    Science.gov (United States)

    Li, Fangmin; Al-Qaness, Mohammed Abdulaziz Aide; Zhang, Yong; Zhao, Bihai; Luan, Xidao

    2016-12-01

    Human activity recognition, tracking and classification is an essential trend in assisted living systems that can help support elderly people with their daily activities. Traditional activity recognition approaches depend on vision-based or sensor-based techniques. Nowadays, a novel promising technique has obtained more attention, namely device-free human activity recognition that neither requires the target object to wear or carry a device nor install cameras in a perceived area. The device-free technique for activity recognition uses only the signals of common wireless local area network (WLAN) devices available everywhere. In this paper, we present a novel elderly activities recognition system by leveraging the fluctuation of the wireless signals caused by human motion. We present an efficient method to select the correct data from the Channel State Information (CSI) streams that were neglected in previous approaches. We apply a Principle Component Analysis method that exposes the useful information from raw CSI. Thereafter, Forest Decision (FD) is adopted to classify the proposed activities and has gained a high accuracy rate. Extensive experiments have been conducted in an indoor environment to test the feasibility of the proposed system with a total of five volunteer users. The evaluation shows that the proposed system is applicable and robust to electromagnetic noise.

  17. Dynamic regulation of Drosophila nuclear receptor activity in vivo.

    Science.gov (United States)

    Palanker, Laura; Necakov, Aleksandar S; Sampson, Heidi M; Ni, Ruoyu; Hu, Chun; Thummel, Carl S; Krause, Henry M

    2006-09-01

    Nuclear receptors are a large family of transcription factors that play major roles in development, metamorphosis, metabolism and disease. To determine how, where and when nuclear receptors are regulated by small chemical ligands and/or protein partners, we have used a 'ligand sensor' system to visualize spatial activity patterns for each of the 18 Drosophila nuclear receptors in live developing animals. Transgenic lines were established that express the ligand binding domain of each nuclear receptor fused to the DNA-binding domain of yeast GAL4. When combined with a GAL4-responsive reporter gene, the fusion proteins show tissue- and stage-specific patterns of activation. We show that these responses accurately reflect the presence of endogenous and exogenously added hormone, and that they can be modulated by nuclear receptor partner proteins. The amnioserosa, yolk, midgut and fat body, which play major roles in lipid storage, metabolism and developmental timing, were identified as frequent sites of nuclear receptor activity. We also see dynamic changes in activation that are indicative of sweeping changes in ligand and/or co-factor production. The screening of a small compound library using this system identified the angular psoralen angelicin and the insect growth regulator fenoxycarb as activators of the Ultraspiracle (USP) ligand-binding domain. These results demonstrate the utility of this system for the functional dissection of nuclear receptor pathways and for the development of new receptor agonists and antagonists that can be used to modulate metabolism and disease and to develop more effective means of insect control.

  18. Quantum erasers and probing classifications of entanglement via nuclear magnetic resonance

    International Nuclear Information System (INIS)

    Teklemariam, G.; Fortunato, E.M.; Pravia, M.A.; Sharf, Y.; Havel, T.F.; Cory, D.G.; Bhattaharyya, A.; Hou, J.

    2002-01-01

    We report the implementation of two- and three-spin quantum erasers using nuclear magnetic resonance (NMR). Quantum erasers provide a means of manipulating quantum entanglement, an important resource for quantum information processing. Here, we first use a two-spin system to illustrate the essential features of quantum erasers. The extension to a three-spin 'disentanglement eraser' shows that entanglement in a subensemble can be recovered if a proper measurement of the ancillary system is carried out. Finally, we use the same pair of orthogonal decoherent operations used in quantum erasers to probe the two classes of entanglement in tripartite quantum systems: the Greenberger-Horne-Zeilinger state and the W state. A detailed presentation is given of the experimental decoherent control methods that emulate the loss of phase information in strong measurements, and the use of NMR decoupling techniques to implement partial trace operations

  19. Supervised machine learning and active learning in classification of radiology reports.

    Science.gov (United States)

    Nguyen, Dung H M; Patrick, Jon D

    2014-01-01

    This paper presents an automated system for classifying the results of imaging examinations (CT, MRI, positron emission tomography) into reportable and non-reportable cancer cases. This system is part of an industrial-strength processing pipeline built to extract content from radiology reports for use in the Victorian Cancer Registry. In addition to traditional supervised learning methods such as conditional random fields and support vector machines, active learning (AL) approaches were investigated to optimize training production and further improve classification performance. The project involved two pilot sites in Victoria, Australia (Lake Imaging (Ballarat) and Peter MacCallum Cancer Centre (Melbourne)) and, in collaboration with the NSW Central Registry, one pilot site at Westmead Hospital (Sydney). The reportability classifier performance achieved 98.25% sensitivity and 96.14% specificity on the cancer registry's held-out test set. Up to 92% of training data needed for supervised machine learning can be saved by AL. AL is a promising method for optimizing the supervised training production used in classification of radiology reports. When an AL strategy is applied during the data selection process, the cost of manual classification can be reduced significantly. The most important practical application of the reportability classifier is that it can dramatically reduce human effort in identifying relevant reports from the large imaging pool for further investigation of cancer. The classifier is built on a large real-world dataset and can achieve high performance in filtering relevant reports to support cancer registries. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  20. Radiopharmaceutical activities administered for paediatric nuclear medicine procedures in Australia

    International Nuclear Information System (INIS)

    Towson, J.E.; Smart, R.C.; Rossleigh, M.A.; Children's Hospital, Randwick, NSW

    2000-01-01

    A survey of radiopharmaceutical activities used at the eight hospital centres specialising in paediatric nuclear medicine in Australia was conducted in 1999-2000 by the Australian and New Zealand Society of Nuclear Medicine and the Australasian Radiation Protection Society. Data on the maximum and minimum administered activities was obtained for 43 paediatric imaging procedures. The maximum values were significantly less than the corresponding Reference Activities for adults determined in a previous study. Activities for individual patients are calculated using surface area scaling at five centres and body weight scaling at three centres. The median values of A max and A min are recommended as Paediatric Reference Activities. The effective dose to patients of various sizes for the Paediatric Reference Activities and both methods of scaling was calculated for each procedure. Copyright (2000) Australasian Radiation Protection Society Inc

  1. Classifying Human Activity Patterns from Smartphone Collected GPS data: a Fuzzy Classification and Aggregation Approach.

    Science.gov (United States)

    Wan, Neng; Lin, Ge

    2016-12-01

    Smartphones have emerged as a promising type of equipment for monitoring human activities in environmental health studies. However, degraded location accuracy and inconsistency of smartphone-measured GPS data have limited its effectiveness for classifying human activity patterns. This study proposes a fuzzy classification scheme for differentiating human activity patterns from smartphone-collected GPS data. Specifically, a fuzzy logic reasoning was adopted to overcome the influence of location uncertainty by estimating the probability of different activity types for single GPS points. Based on that approach, a segment aggregation method was developed to infer activity patterns, while adjusting for uncertainties of point attributes. Validations of the proposed methods were carried out based on a convenient sample of three subjects with different types of smartphones. The results indicate desirable accuracy (e.g., up to 96% in activity identification) with use of this method. Two examples were provided in the appendix to illustrate how the proposed methods could be applied in environmental health studies. Researchers could tailor this scheme to fit a variety of research topics.

  2. IAEA safeguards and detection of undeclared nuclear activities

    International Nuclear Information System (INIS)

    Harry, R.J.S.

    1996-03-01

    Verfication of State declarations is an essential feature of IAEA safeguards. The issue of completeness of the declaration of all nuclear material, nuclear activities and nuclear facilities arises only in full scope safeguards, like those pursuant to NPT. Concentrating on the accountability aspect of nuclear material, the NPT safeguards system has achieved a high level of objective and quantified performance. Some of the basic ideas of the drafters of INFCIRC/153 (corrected) have been stalled. Non-proliferation concerns demand also for a detection probability for undeclared nuclear activities. Following the example of the Chemical Weapon Convention (CWC), advanced detection techniques are proposed, which go beyond the classical nuclear material accountability approach. Recent proposals for additional measures to strengthen IAEA safeguards conform to rules of NPT and related safeguards. Some proposals have been agreed generally, others can only be implemented on a voluntary basis between the State and the IAEA. The implementation will require additional resources and support for the IAEA. Great care is required to maintain the existing capability of the IAEA for a technically sound, independent, objective, and internationally acceptable judgement with available resources, and at the same time to change emphasis on certain elements of the existing safeguards system. (orig.)

  3. IAEA safeguards and detection of undeclared nuclear activities

    Energy Technology Data Exchange (ETDEWEB)

    Harry, R.J.S.

    1996-03-01

    Verfication of State declarations is an essential feature of IAEA safeguards. The issue of completeness of the declaration of all nuclear material, nuclear activities and nuclear facilities arises only in full scope safeguards, like those pursuant to NPT. Concentrating on the accountability aspect of nuclear material, the NPT safeguards system has achieved a high level of objective and quantified performance. Some of the basic ideas of the drafters of INFCIRC/153 (corrected) have been stalled. Non-proliferation concerns demand also for a detection probability for undeclared nuclear activities. Following the example of the Chemical Weapon Convention (CWC), advanced detection techniques are proposed, which go beyond the classical nuclear material accountability approach. Recent proposals for additional measures to strengthen IAEA safeguards conform to rules of NPT and related safeguards. Some proposals have been agreed generally, others can only be implemented on a voluntary basis between the State and the IAEA. The implementation will require additional resources and support for the IAEA. Great care is required to maintain the existing capability of the IAEA for a technically sound, independent, objective, and internationally acceptable judgement with available resources, and at the same time to change emphasis on certain elements of the existing safeguards system. (orig.).

  4. Activities in the field of small nuclear power reactors

    Energy Technology Data Exchange (ETDEWEB)

    Baranaev, Yu.D.; Dolgov, V.V.; Sergeev, Yu.A. [Physics and Power Eng. Inst., Obninsk (Russian Federation). State Res. Centre

    1997-10-01

    Considerable efforts have been undertaken for development, design, construction and operation of small nuclear power plants (SNPP) in Russia. Systematic work in this area was started in the mid-1950s. The driving force for this activity was the awareness that the use of nuclear fuel would practically solve the problem of fuel transportation. As far as the remote northern regions are concerned, this provides the key advantage of nuclear over conventional energy sources. The activity in the field of SNPP has included pre-design analytical feasibility studies and experimental research including large-scale experiments on critical assemblies, thermal and hydraulic test facilities, research and development work, construction and operation of pilot and demonstration SNPPs, and finally, construction and more than 20 years of operation of the commercial SNPP, namely Bilibino nuclear co-generation plant (NCGP) located in Chukotka autonomous district, which is one of the most remote regions in the far north-east of Russia. In recent years, studies have been carried out on the development of several new SNPP designs using advanced reactors of the new generation. Among these are the second stage of Bilibino NCGP, floating NCGP VOLNOLOM-3, designated for siting in the Arctic sea coast area, and a nuclear district heating plant for the town of Apatity, in the Murmansk region. In this paper, the background and current status of the SNPPs are given, and the problems as well as prospects of small nuclear reactors development and implementation are considered. (orig.) 20 refs.

  5. Active learning strategies for the deduplication of electronic patient data using classification trees.

    Science.gov (United States)

    Sariyar, M; Borg, A; Pommerening, K

    2012-10-01

    Supervised record linkage methods often require a clerical review to gain informative training data. Active learning means to actively prompt the user to label data with special characteristics in order to minimise the review costs. We conducted an empirical evaluation to investigate whether a simple active learning strategy using binary comparison patterns is sufficient or if string metrics together with a more sophisticated algorithm are necessary to achieve high accuracies with a small training set. Based on medical registry data with different numbers of attributes, we used active learning to acquire training sets for classification trees, which were then used to classify the remaining data. Active learning for binary patterns means that every distinct comparison pattern represents a stratum from which one item is sampled. Active learning for patterns consisting of the Levenshtein string metric values uses an iterative process where the most informative and representative examples are added to the training set. In this context, we extended the active learning strategy by Sarawagi and Bhamidipaty (2002). On the original data set, active learning based on binary comparison patterns leads to the best results. When dropping four or six attributes, using string metrics leads to better results. In both cases, not more than 200 manually reviewed training examples are necessary. In record linkage applications where only forename, name and birthday are available as attributes, we suggest the sophisticated active learning strategy based on string metrics in order to achieve highly accurate results. We recommend the simple strategy if more attributes are available, as in our study. In both cases, active learning significantly reduces the amount of manual involvement in training data selection compared to usual record linkage settings. Copyright © 2012 Elsevier Inc. All rights reserved.

  6. Learning to recognise : A study on one-class classification and active learning

    NARCIS (Netherlands)

    Juszczak, P.

    2006-01-01

    The thesis treats classification problems which are undersampled or where there exist an unbalance between classes in the sampling. The thesis is divided into three parts. The first two parts treat the problem of one-class classification. In the one-class classification problem, it is assumed that

  7. Revealing Significant Relations between Chemical/Biological Features and Activity: Associative Classification Mining for Drug Discovery

    Science.gov (United States)

    Yu, Pulan

    2012-01-01

    Classification, clustering and association mining are major tasks of data mining and have been widely used for knowledge discovery. Associative classification mining, the combination of both association rule mining and classification, has emerged as an indispensable way to support decision making and scientific research. In particular, it offers a…

  8. Selected working papers[Nuclear data activities

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-08-01

    The following working papers are included in this report: WP 2002-2, Dictionary Restructuring; WP-2002-4, Page numbers for REFERENCE (CP-C/285); WP-2002-5, Correlation quantities; WP 2002-8, Proposed data heading EN-CM-TOT (memo CP-A/121); WP 2002-9, Proposed high energy quantities (memo CP-A/123); WP 2002-11, Use of nuclide codes in SF 7 (memo CP-C/302); WP 2002-12, Redundant coding, new data heading PART-OUT; WP 2002-16, Zeros in error field (CP-C/306); WP 2002-17, Multiple appearance of the first Reference in EXFOR; WP 2002-18 + Add., EXFOR master file comparisons; WP 2002-19, Measures of Security at the NDS Open Area for EXFOR; WP 2002-20, New and revised entries received at NDS; WP 2002-21, EXFOR transmissions (NNDC); WP 2002-22, CINDA statistics (NNDC); WP 2002-24, CINDA batch exchange information (NDS); WP 2002-25, Journal coverage for CINDA; WP 2002-26, EXFOR-relational as multi-platform database (V. Zerkin); WP 2002-27, Completeness of EXFOR compil. as indexed by CINDA; WP 2002-28, Future NRDC Cooperation on CINDA: see Appendix 9; WP 2002-31, Development of Web Editor for Charged-Particle Nuclear Reaction Data (N. Otuka, H. Noto, A. Ohnishi, K. Kato). The following other papers, or the memos of which they consist, are available from the IAEA Nuclear Data Section: WP 2002-1, Actions of previous meetings (2002, 2001) see INDC(NDS)-427, pp.20-26, and INDC(NDS)-418, pp.26-31; WP 2002-3, Units for particle and product yields: see memos CP-C/294, 286; WP 2002-6, 4-momentum transfer and mom.distr.data: see memos CP-C/295 and CP-D/330; WP 2002-7, Several 'straightforward' new quantities: see memos CP-/C-291, 298 and CP-A/118; WP 2002-10, Quantities proposed by JCPRG (see memos DP-D/337, CP-E/004, 003); WP 2002-13, Clarifications on Product Yields and Thick Target Yields (see memo CP-D/332); WP 2002-14, Clarifications on Polarization quantities (see memo CP-D/320); WP 2002-15, New Legendre polynomial modifier proposed (see CP-C/305); WP 2002-23, see memo 4C-4

  9. Research and Production Corporation Radiy activities within Canadian nuclear market

    International Nuclear Information System (INIS)

    Bakhmach, I.; Siora, O.; Kharchenko, V.; Sklyar, V.; Andrashov, A.

    2011-01-01

    This paper presents key results of RPC Radiy activities within Canadian nuclear market. RPC Radiy (located in Kirovograd, Ukraine) is a vendor which designs and produces digital safety I and C platform as well as turnkey applications, based on the platform, for NPPs (safety systems). The main feature of the Radiy Platform is the application of Field Programmable Gates Arrays (FPGA) as programmable components for logic control operations. Since 2009 RPC Radiy started to explore the possibility to conduct the expansion to Canadian nuclear market. The activities performed by RPC Radiy related to this direction are resulted in several joint projects with Canadian companies. (author)

  10. 4. Activity report of the Nuclear Energy Agency. 1975

    International Nuclear Information System (INIS)

    1976-01-01

    Despite the many economic and related difficulties experienced throughout the OECD area during 1975, for nuclear power the year brought much promise, together with consolidation and some incouragement for the nuclear industry. 1975 saw a concentration of NEA's technical work on nuclear safety, radioactive waste management, and studies related to the nuclear fuel cycle. NEA's work on regulatory questions was also important. Besides NEA's substantial involvement in the preparation of Extension Agreements for the Halden and Dragon Reactor Projects and for the International Food Irradiation Project, as well as the Agreement to establish a research and development program at Eurochemic on high-activity waste treatment, the Agency has also been closely concerned with scientific and technological developments both within these Projects and in other areas

  11. Status of Nuclear Activities of Bangladesh Atomic Energy Commission

    Energy Technology Data Exchange (ETDEWEB)

    Begum, Zakia [Planning and Development, Bangladesh Atomic Energy Commission - BAEC, Paramanu Bhaban, E 12/A, Agargoan, 01207 Shere Banglanagar, Dhaka (Bangladesh)

    2008-07-01

    Bangladesh Atomic Energy Commission (BAEC) is the national authority for acquisition, development and application of Nuclear Science and Technology and thus is playing the pioneering role for the development of the country's nuclear research programmes and thus helping to achieve the cherished goal of self-reliance through national efforts and international co-operation. Being firmly committed to the peaceful uses of Atomic Energy, programmes have been undertaken in Physical Sciences, Biological Sciences, Engineering and Nuclear Power Sector by Bangladesh Atomic Energy Commission and some of the results have been transferred from laboratories to hospitals, agriculture, industries and environment for practical applications. In spite of some major constrains, presently BAEC's activities have increased many folds and keeping in view of the overall power crisis of the country efforts have also been given to establish Nuclear Power Plant in the country. (author)

  12. CLASSIFICATION OF SYSTEMS FOR PASSIVE AFTERHEAT REMOVAL FROM REACTOR CONTAINMENT OF NUCLEAR POWER PLANT WITH WATER-COOLED POWER REACTOR

    Directory of Open Access Journals (Sweden)

    N. Khaled

    2014-01-01

    Full Text Available A classification on systems for passive afterheat removal from reactor containment has been developed in the paper.  The classification permits to make a detailed analysis of various concepts pertaining to systems for passive afterheat removal from reactor containment of new generation. The paper considers main classification features of the given systems.

  13. Nuclear Data Activities in Support of the DOE Nuclear Criticality Safety Program

    International Nuclear Information System (INIS)

    Westfall, R.M.; McKnight, R.D.

    2005-01-01

    The DOE Nuclear Criticality Safety Program (NCSP) provides the technical infrastructure maintenance for those technologies applied in the evaluation and performance of safe fissionable-material operations in the DOE complex. These technologies include an Analytical Methods element for neutron transport as well as the development of sensitivity/uncertainty methods, the performance of Critical Experiments, evaluation and qualification of experiments as Benchmarks, and a comprehensive Nuclear Data program coordinated by the NCSP Nuclear Data Advisory Group (NDAG).The NDAG gathers and evaluates differential and integral nuclear data, identifies deficiencies, and recommends priorities on meeting DOE criticality safety needs to the NCSP Criticality Safety Support Group (CSSG). Then the NDAG identifies the required resources and unique capabilities for meeting these needs, not only for performing measurements but also for data evaluation with nuclear model codes as well as for data processing for criticality safety applications. The NDAG coordinates effort with the leadership of the National Nuclear Data Center, the Cross Section Evaluation Working Group (CSEWG), and the Working Party on International Evaluation Cooperation (WPEC) of the OECD/NEA Nuclear Science Committee. The overall objective is to expedite the issuance of new data and methods to the DOE criticality safety user. This paper describes these activities in detail, with examples based upon special studies being performed in support of criticality safety for a variety of DOE operations

  14. Modeling activity recognition of multi resident using label combination of multi label classification in smart home

    Science.gov (United States)

    Mohamed, Raihani; Perumal, Thinagaran; Sulaiman, Md Nasir; Mustapha, Norwati; Zainudin, M. N. Shah

    2017-10-01

    Pertaining to the human centric concern and non-obtrusive way, the ambient sensor type technology has been selected, accepted and embedded in the environment in resilient style. Human activities, everyday are gradually becoming complex and thus complicate the inferences of activities when it involving the multi resident in the same smart environment. Current works solutions focus on separate model between the resident, activities and interactions. Some study use data association and extra auxiliary of graphical nodes to model human tracking information in an environment and some produce separate framework to incorporate the auxiliary for interaction feature model. Thus, recognizing the activities and which resident perform the activity at the same time in the smart home are vital for the smart home development and future applications. This paper will cater the above issue by considering the simplification and efficient method using the multi label classification framework. This effort eliminates time consuming and simplifies a lot of pre-processing tasks comparing with previous approach. Applications to the multi resident multi label learning in smart home problems shows the LC (Label Combination) using Decision Tree (DT) as base classifier can tackle the above problems.

  15. Level of daily physical activity in chronic obstructive pulmonary disease (COPD) patients according to GOLD classification.

    Science.gov (United States)

    Rodó-Pin, Anna; Balañá, Ana; Molina, Lluís; Gea, Joaquim; Rodríguez, Diego A

    2017-02-09

    The Global Initiative for Chronic Obstructive Lung Disease (GOLD guideline) for patients with chronic obstructive pulmonary disease does not adequately reflect the impact of the disease because does not take into account daily physical activity (DPA). Forty eight patients (12 in each GOLD group) were prospectively recruited. DPA was evaluated by accelerometer. Patients were classified into 3 levels of activity (very inactive, sedentary, active). No significant differences in levels of physical activity among GOLD groups (P=.361) were observed. The percentages of very inactive patients were 33% in group A, 42% in group B, 42% in group C and 59% in group D. In addition, high percentage of sedentary patients were observed through 4 groups, in group A (50%), B and C (42%, each), and group D (41%). COPD patients has very low levels of physical activity at all stages of GOLD classification even those defined as low impact (such as GOLD A). Is necessary to detect patients at risk who might benefit from specific interventions. Copyright © 2016 Elsevier España, S.L.U. All rights reserved.

  16. Activity transport in nuclear generating stations

    International Nuclear Information System (INIS)

    Mitchell, A.B.

    1975-01-01

    The objective of this paper is to give a basic understanding of the operational limitations caused by radiation fields in the present design of CANDU-PHW reactors. A simple model of activity transport is described, and the significance of various radioisotopes identified. The impact which radiation fields have at the Divisional, Station Manager and Operation levels, is outlined in the context of typical work situations. (author)

  17. Activities of nuclear training centre in Ljubljana for nuclear community in Slovenia and internationally

    International Nuclear Information System (INIS)

    Stritar, Andrej

    1998-01-01

    It is the vision of the Nuclear Training Centre to be a respected source of knowledge about nuclear technologies in the country and internationally. Our main mission is training of NPP Krsko personnel. For that purpose the training centre was established ten years ago. In addition we are spreading our activities also to other users. We are organizing international training courses, mainly under the sponsorship of the International Atomic Energy Agency. We are also authorized to train professionals, dealing with ionizing radiation in medicine, industry and science. Growing importance is given to our public information activity in our information centre. (author)

  18. Topics on Education Activities in Japanese Nuclear Industries

    International Nuclear Information System (INIS)

    Kuroiwa, Haruko

    2008-01-01

    The progression of an aging society with fewer children or a foreseeable decrease in population has caused the nuclear power plants under planning canceled or delayed. As a result, the number of students graduating with a nuclear degree began to decrease, while the development of the next generation light water reactor or of the practical use of the fast breeder reactor requires many skilled engineers. Atomic Energy Commission of Japan realized this potential impact of human resources. The Commission submitted the Framework for Nuclear Energy Policy including this issue to the government. The report says that without future talent development, Japan will lose its competitiveness against other industrialized countries, and that without replenishment after a large number of baby boomers retire, the shortage of specialists in the radiation field will occur. In conjunction with the Framework for Nuclear Energy Policy, the Ministry of Education, Culture, Sports, Science and Technology and the Ministry of Economy, Trade and Industry carried out the Nuclear Power Human Resources Development Program in 2007 fiscal year. The program focused on i) Support of educational activities, such as basic nuclear education and research, internship, and preparation of core curriculums and texts for nuclear power, ii) Implementation of research in the basic and infrastructure technology fields supporting the nuclear power (ex. structural strength, material strength, welding, erosion/corrosion, heat transfer, radiation safety). This program will continue till the end of 2009 fiscal year. Besides in order to promote nuclear power acceptance and to secure diversity, effective measures should be taken to support young, women, and foreign researchers and to promote their utilization. Mitsubishi accepts overseas students and researchers as an internship every year, and accelerates the safety architecture in the world. (author)

  19. Topics on Education Activities in Japanese Nuclear Industries

    Energy Technology Data Exchange (ETDEWEB)

    Kuroiwa, Haruko [Mitsubishi Heavy Industries, LTD - MHI, 2-16-5 Kona Minato-K 108-8215 Tokyo (Japan)

    2008-07-01

    The progression of an aging society with fewer children or a foreseeable decrease in population has caused the nuclear power plants under planning canceled or delayed. As a result, the number of students graduating with a nuclear degree began to decrease, while the development of the next generation light water reactor or of the practical use of the fast breeder reactor requires many skilled engineers. Atomic Energy Commission of Japan realized this potential impact of human resources. The Commission submitted the Framework for Nuclear Energy Policy including this issue to the government. The report says that without future talent development, Japan will lose its competitiveness against other industrialized countries, and that without replenishment after a large number of baby boomers retire, the shortage of specialists in the radiation field will occur. In conjunction with the Framework for Nuclear Energy Policy, the Ministry of Education, Culture, Sports, Science and Technology and the Ministry of Economy, Trade and Industry carried out the Nuclear Power Human Resources Development Program in 2007 fiscal year. The program focused on i) Support of educational activities, such as basic nuclear education and research, internship, and preparation of core curriculums and texts for nuclear power, ii) Implementation of research in the basic and infrastructure technology fields supporting the nuclear power (ex. structural strength, material strength, welding, erosion/corrosion, heat transfer, radiation safety). This program will continue till the end of 2009 fiscal year. Besides in order to promote nuclear power acceptance and to secure diversity, effective measures should be taken to support young, women, and foreign researchers and to promote their utilization. Mitsubishi accepts overseas students and researchers as an internship every year, and accelerates the safety architecture in the world. (author)

  20. Event classification related to overflow of solvent containing uranium according to the INES scale (International Nuclear and Radiological Event Scale)

    International Nuclear Information System (INIS)

    Dourado, Eneida R.G.; Assis, Juliana T. de; Lage, Ricardo F.; Lopes, Karina B.

    2013-01-01

    This paper aims to frame the event overflow organic solvent rich in uranium, from a decanter of ore beneficiation plant, caused by the fall in the supply of electricity, according to the criteria established by the International Nuclear Event Scale and radiological (INES), facilitating the understanding of the occurrence and communication with the public regarding the radiation safety aspects involved. With the fall of electricity, routine procedures in situations of installation stop were performed, however, due to operational failure, the valve on the transfer line liquor was not closed. Thus, the mixer continued being fed with liquor, that led the consequent leakage of solvent loaded with uranium. It reached the drainage system, and the box of rainwater harvesting of the plant. However, immediately after the detection of the event, corrective actions were initiated and the overflow was contained. Regulatory agencies followed the removal of the solvent and on the results of the analysis of environmental monitoring, found that the event did not provide exposure to workers or any other impact. Therefore, comparing the characteristics of the event and the guidelines proposed by the INES scale, it is concluded that the classification of the event is below scale/level 0, confirming the absence of risk to the local population, workers and the environment

  1. Aligning Physical Activity Measures with the International Classification of Functioning, Disability and Health Framework for Childhood Disability

    Science.gov (United States)

    Ross, Samantha Mae; Case, Layne; Leung, Willie

    2016-01-01

    The introduction of the International Classification of Functioning, Disability and Health has placed emphasis on framing health behavior as a multidimensional construct. In relation to childhood physical activity, this encompasses dimensions of functional performance, activity attendance, and subjective perceptions of involvement and enjoyment…

  2. The selective application of quality assurance activities to nuclear power plant items and services

    International Nuclear Information System (INIS)

    Anderson, J.W.

    1982-01-01

    The definition of quality assurance and the criteria for a quality assurance programme that are contained in both national and international codes and standards provide the principle of selective application of quality assurance activities for cost-effective results. The effective implementation of this principle requires a systematic and disciplined methodology that should be established by or for the owner at the beginning of a nuclear power plant project. The methodology that has proven to be successful generally includes a uniform method of classifying plant items and services at their lowest level of unit assembly and using that classification in the selection of applicable quality assurance activities and the specification of appropriate requirements for those activities. The applicable quality assurance activities are those to be implemented by the organizations designing, manufacturing, installing and operating plant items or performing support services. The methods and techniques provided illustrate the methodology and are one way by which a nuclear power plant project may translate the principle into application in order to achieve the desired results. (author)

  3. Management of nuclear PRs activity with optimal conditions

    International Nuclear Information System (INIS)

    Ohnishi, Teruaki

    1997-01-01

    A methodology is proposed to derive optimal conditions for the activity of nuclear public relations (PRs). With the use of data-bases available at present, expressions were derived which connect the budget allocated for the PRs activity with the intensity of stimulus for four types of activity of the advertisement in the press, the exclusive publicity, the pamphlet and the advertisement on television. Optimal conditions for the activity were determined by introducing a model describing a relation between the intensity of stimulus and the extent of the change of public's attitude to nuclear energy, namely the effect of PRs activity, and also by giving the optimal ratio of allocation of the budget among the four types of activity as a function of cost versus effectiveness of each type. Those optimal conditions, being for the ratio of allocation of the budget, the execution time and the intensity of each type of activity at that time, vary depending on the number of household in a target region, the target class of demography, the duration time of activity, and the amount of budget for the activity. It becomes clear from numerical calculation that the optimal conditions and the effect of activity show quite strong non-linearity with respect to the variation of those variables, and that the effect of PRs activity averaged over all public in the target region becomes to be maximum, in Japan, when the activity is executed with the optimal conditions determined for the target class of middle- and advanced-aged women. The management of nuclear PRs activity becomes possible by introducing such a method of fixation of optimal conditions for the activity as described here. (author)

  4. The radiological safety in the use of nuclear technique -activities developed by Centro de Desenvolvimento da Tecnologia Nuclear - CNEN

    International Nuclear Information System (INIS)

    Wakabayashi, T.; Pereira, E.G.; Hirayama, T.

    1991-01-01

    The activities developed by the Centro de Desenvolvimento da Tecnologia Nuclear - CDTN supporting the users of nuclear techniques are described. The methodology used and future plans for the group are shown. (E.G.)

  5. The significance of human factors in nuclear activities

    International Nuclear Information System (INIS)

    Weil, L.; Berg, H.P.

    1999-01-01

    Human factors is an aspect increasingly investigated in the last few years in efforts and programmes for enhancing the operational safety of nuclear systems. Methodology has been elaborated for analysis and evaluation of human reliability, or development of instruments supporting the decisions to be taken by the operators at the man-control room interface of nuclear installations, as well as initial approaches to introduce organisational factors which may influence the man-machine function allocation, and thus are an element of the safety culture concept. The significance of human factors in nuclear activities, as well as activities at the national and international level for optimisation of the man-machine interface and the man-organisation interface are discussed. (orig./CB) [de

  6. JAEA's activities relating the Fukushima Nuclear Plant accident

    International Nuclear Information System (INIS)

    Tagawa, Akihiro

    2012-01-01

    JAEA started the activities relating to the Fukushima nuclear plant accident immediately after the Great East Japan Earthquake. The Office of Fukushima Partnership Operations for Environmental Remediation was opened and the JAEA staff was stationed as the base of cooperation with other organizations. It is conducting environmental radiation monitoring, environmental radioactivity analyses, resident public consulting, and demonstration of decontamination technology. Experts of JAEA are providing technical advice and supports to the Nuclear Safety Commission of Japan and the Ministry of Education, Culture and Sports. Furthermore, the water radiolysis leading to hydrogen gas evolution by Cs 137 adsorbed zeolite and the technique for radioactive waste process and its disposal of fuel debris are being studied. JAEA's Nuclear Emergency Assistance and Training Center (NEAT) is acting as a center of these supporting activities of JAEA. (S. Ohno)

  7. 1988 activity report of the Nuclear Physics Institute

    International Nuclear Information System (INIS)

    1989-06-01

    The 1988 activity report of the Nuclear Physics Institute (France) is presented. The report covers the scientific activities from the 1st October 1987 to the 30th September 1988 and the technical developments form the 1st October 1986 to the 30th September 1988. The main research fields include works on exotic nuclei, hot nuclei characteristics, physics of strangeness, nuclear structure studies by means of nuclear reactions, high spin states and radiochemistry. The project of an electron accelerator, delivering a 4 GeV beam (in a first step), is one of the Institute's priorities. The research works carried out in the Experimental Research and Theoretical Physics Divisions as well as technological projects are included [fr

  8. [Development of a staging classification for leisure activities and social communication in dependent elderly persons].

    Science.gov (United States)

    Okochi, Jiro; Takamuku, Kiyoshi; Higashi, Kentaro; Orimo, Kenichiro; Honma, Tatsuya; Nishiwaki, Keiko; Ando, Shigeru

    2014-01-01

    The aim of this study was to develop a simple staging classification to measure leisure activity and social communication among the elderly at geriatric health care facilities. In order to construct a staging scale for measuring the participation of the elderly subjects, we developed a list of 28 items for three domains: leisure activities, social participation and communication. Data were obtained from users of institutional and day care services at geriatric health service facilities. The Rasch model was applied to test the degree of item fit and difficulty. Simple staging scales were constructed based on 12 leisure activity and nine social communication items. The validity and reliability were tested using these newly developed scales according to the Rasch model and assessments of the test-retest reliability. The participants were 3,458 elderly persons, of whom 1,560 were currently using institutional services and 1,898 were using day care services. Among the 28 items, "traveling" was identified as the most difficult and "watching television" was identified as the easiest. Because items related to "social participation," such as volunteer activities, exhibited a low frequency, they were not used in the further analyses. Simple staging scales were constructed by analyzing the remaining items of leisure activities and social communication according to the Rasch model. The thresholds within the scales were determined in order of item difficulty. Cohen's kappa, as assessed by two different evaluators, was 0.75 for leisure activities and 0.77 for social communication. In this study, we developed staging scales for leisure activity and social communication. The construct validity and test-retest reliability were adequate for both scales. Service providers can improve service quality by using these scales for individual case management of elderly persons in conjunction with existing scales of activities of daily living.

  9. An Active Patch Model for Real World Texture and Appearance Classification.

    Science.gov (United States)

    Mao, Junhua; Zhu, Jun; Yuille, Alan L

    2014-09-06

    This paper addresses the task of natural texture and appearance classification. Our goal is to develop a simple and intuitive method that performs at state of the art on datasets ranging from homogeneous texture (e.g., material texture), to less homogeneous texture (e.g., the fur of animals), and to inhomogeneous texture (the appearance patterns of vehicles). Our method uses a bag-of-words model where the features are based on a dictionary of active patches. Active patches are raw intensity patches which can undergo spatial transformations (e.g., rotation and scaling) and adjust themselves to best match the image regions. The dictionary of active patches is required to be compact and representative, in the sense that we can use it to approximately reconstruct the images that we want to classify. We propose a probabilistic model to quantify the quality of image reconstruction and design a greedy learning algorithm to obtain the dictionary. We classify images using the occurrence frequency of the active patches. Feature extraction is fast (about 100 ms per image) using the GPU. The experimental results show that our method improves the state of the art on a challenging material texture benchmark dataset (KTH-TIPS2). To test our method on less homogeneous or inhomogeneous images, we construct two new datasets consisting of appearance image patches of animals and vehicles cropped from the PASCAL VOC dataset. Our method outperforms competing methods on these datasets.

  10. Overview of expert systems applications in Westinghouse Nuclear Fuel Activities

    International Nuclear Information System (INIS)

    Leech, W.J.

    1989-01-01

    Expert system applications have been introduced in several nuclear fuel activities, including engineering and manufacturing. This technology has been successfully implemented on the manufacturing floors to provide on-line process control at zirconium tubing and fuel fabrication plants. This paper provides an overview of current applications at Westinghouse with respect to fuel fabrication, zirconium tubing, zirconium production, and core design

  11. Active and Passive Diagnostic Signatures of Special Nuclear Materials

    Energy Technology Data Exchange (ETDEWEB)

    Myers, William L. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Karpius, Peter Joseph [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Myers, Steven Charles [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-05-26

    An overview will be given discussing signatures associated with special nuclear materials acquired using both active and passive diagnostic techniques. Examples of how technology advancements have helped improve diagnostic capabilities to meet the challenges of today’s applications will be discussed.

  12. Regulatory oversight of maintenance activities at nuclear power plants

    International Nuclear Information System (INIS)

    Pape, M.

    1997-01-01

    Regulation of nuclear safety in the UK is based on monitoring of compliance with licence conditions. This paper discusses legislation aspects, license conditions, license requirements for maintenance and maintenance activities in the UK. It also addresses the regulator utility interaction, the regulatory inspection of maintenance and the trends in maintenance. (author)

  13. Activity report of the ENEA nuclear data project in 2005

    International Nuclear Information System (INIS)

    Ventura, A.

    2006-03-01

    Descriptions are given of the nuclear data activities at the Bologna Research Centre of the Italian National Agency for New Technologies, Energy and the Environment (ENEA), in the year 2005. This work has been done within the P9H6 project of the Division for Advanced Physics Technologies. (author)

  14. Preliminary Hazard Classification for the 105-B Reactor

    International Nuclear Information System (INIS)

    Kerr, N.R.

    1997-08-01

    This document summarizes the inventories of radioactive and hazardous materials present within the 105-B Reactor and uses the inventory information to determine the preliminary hazard classification for the surveillance and maintenance activities of the facility. The result of this effort was the preliminary hazard classification for the 105-B Building surveillance and maintenance activities. The preliminary hazard classification was determined to be Nuclear Category 3. Additional hazard and accident analysis will be documented in a separate report to define the hazard controls and final hazard classification

  15. Identification of uranium signatures in swipe samples on verification of nuclear activities for nuclear safeguards purposes

    International Nuclear Information System (INIS)

    Pestana, Rafael Cardoso Baptistini

    2013-01-01

    The use of environmental sampling for safeguards purposes, has been applied by the International Atomic Energy Agency–IAEA since 1996 and are routinely used as a complementary measure to strengthen the traditional nuclear safeguards procedures. The aim is verify if the states signatory to the safeguards agreements are not diverging their peaceful nuclear activities for undeclared nuclear activities. This work describes a new protocol of collect and analysis of the swipe samples for identification of nuclear signatures that may be related to the nuclear activities developed in the inspected facility. This work was used as a case of study a real uranium conversion plant of the nuclear fuel cycle of IPEN. The strategy proposed uses different analytical techniques, such as alpha radiation meter, SEM-EDX and ICP-MS to identify signatures of uranium adhered to the swipe samples. In the swipe samples analysis, it was possible to identify particles of UO 2 F 2 and UF4 through the morphological comparison and semi-quantitative analyses performed by SEM-EDX technique. In this work, methods were used that as a result has the average isotopic composition of the sample, in which the enrichment ranged from 1.453 ± 0.023 to 18.24 % ± 0.15 % in the 235 U isotope. Through these externally collections, a non-intrusive sampling, it was possible to identify enriched material handling activities with enrichment of 1.453 % ± 0.023 % to 6.331 ± 0.055 % in the isotope 235 U, as well as the use of reprocessed material, through the identification of the 236 U isotope. The uncertainties obtained for the n( 235 U)/n( 238 U) ratio varied from 0.40% to 0.86 % for the internal swipe samples. (author)

  16. Procedures, activities and doses in nuclear medicine cycle in Brazil

    International Nuclear Information System (INIS)

    Oliveira, Silvia Maria Velasques de

    2005-01-01

    With the aim of characterizing nuclear medicine procedures performed in Brazil, activities of radiopharmaceuticals used and effective doses to patients, data was collected from nuclear medicine institutions in three regions of the country, namely the Southeast, the Northeast and the South regions, representing public hospitals, university hospitals, private and philanthropic institutions with low, medium and high levels of consumption of radiopharmaceuticals. The three chosen regions are responsible for 92% of radiopharmaceutical consumption and imaging equipment in the country. Accordingly, it was requested of some participating institutions to fulfill manually from individual patients data, to record gender, age, weight, height and activities used, for each type of exam as well as the equipment used. In others, the researcher collected data personally. Per institution, nuclear medicine diagnostic procedures ranged from 700 to 13,000 per year, most of which are myocardial and bone imaging procedures, and imaging equipment ranged, from 1 to 8 machines, one or two head SPECT's (hybrid or not). 26.782 patients protocols were analysed, 24.371 adults and 2.411 children and teenagers. For adult patients, differences were observed in the amount of activities used in diagnostic procedures between public and private institutions, with lower average activities used in public institutions. Activities administered to children and their effective doses were difficult to evaluate due to the incompleteness of individual records. Appropriate individual patient records could be adopted without affecting hospitals routine and contributing for a comprehensive evaluation of the radiation protection of nuclear medicine patients. Data from 8.881 workers were analysed, 346 working at nuclear medicine institutions. For monitored workers and measurably exposed workers in nuclear medicine, the values 2.3 mSv and 5.4 mSv, respectively, for effective annual doses are greater than data

  17. IAEA activity related to safety of nuclear desalination

    International Nuclear Information System (INIS)

    Gasparini, M.

    2000-01-01

    The nuclear plants for desalination to be built in the future will have to meet the standards of safety required for the best nuclear power plants currently in operation or being designed. The current safety approach, based on the achievement of the fundamental safety functions and defence in depth strategy, has been shown to be a sound foundation for the safety and protection of public health, and gives the plant the capability of dealing with a large variety of sequences, even beyond the design basis. The Department of Nuclear Safety of the IAEA is involved in many activities, the most important of which are to establish safety standards, and to provide various safety services and technical knowledge in many Technical Co-operation assistance projects. The department is also involved in other safety areas, notably in the field of future reactors. The IAEA is carrying out a project on the safety of new generation reactors, including those used for desalination, with the objective of fostering an exchange of information on safety approaches, promoting harmonization among Member States and contributing towards the development and revision of safety standards and guidelines for nuclear power plant design. The safety, regulatory and environmental concerns in nuclear powered desalination are those related directly to nuclear power plants, with due consideration given to the coupling process. The protection of product water against radioactive contamination must be ensured. An effective infrastructure, including appropriate training, a legal framework and regulatory regime, is a prerequisite to considering use of nuclear power for desalination plants, also in those countries with limited industrial infrastructures and little experience in nuclear technology or safety. (author)

  18. Evaluation and development of advanced nuclear materials: IAEA activities

    International Nuclear Information System (INIS)

    Inozemtsev, V.; Basak, U.; Killeen, J.; Dyck, G.; Zeman, A.; )

    2011-01-01

    Economical, environmental and non-proliferation issues associated with sustainable development of nuclear power bring about a need for optimization of fuel cycles and implementation of advanced nuclear systems. While a number of physical and design concepts are available for innovative reactors, the absence of reliable materials able to sustain new challenging irradiation conditions represents the real bottle-neck for practical implementation of these promising ideas. Materials performance and integrity are key issues for the safety and competitiveness of future nuclear installations being developed for sustainable nuclear energy production incorporating fuel recycling and waste transmutation systems. These systems will feature high thermal operational efficiency, improved utilization of resources (both fissile and fertile materials) and reduced production of nuclear waste. They will require development, qualification and deployment of new and advanced fuel and structural materials with improved mechanical and chemical properties combined with high radiation and corrosion resistance. The extensive, diverse, and expensive efforts toward the development of these materials can be more effectively organized within international collaborative programmes with wide participation of research, design and engineering communities. IAEA carries out a number of international projects supporting interested Member States with the use of available IAEA program implementation tools (Coordinated Research Projects, Technical Meetings, Expert Reviews, etc). The presentation summarizes the activities targeting material developments for advanced nuclear systems, with particular emphasis on fast reactors, which are the focal topics of IAEA Coordinated Research Projects 'Accelerator Simulation and Theoretical Modelling of Radiation Effects' (on-going), 'Benchmarking of Structural Materials Pre-Selected for Advanced Nuclear Reactors', 'Examination of advanced fast reactor fuel and core

  19. Nuclear safety activities in SR Slovenia in 1985

    International Nuclear Information System (INIS)

    1986-09-01

    Currently Yugoslavia has one 632 MWe nuclear power plant of PWR design, located at Krsko in the Socialist Republic of Slovenia. NPP Krsko, which is a two-loop plant, started power operation in 1981. In general, reactor safety activities in SR Slovenia are mostly related to upgrading the safety of our NPP Krsko and to develop capabilities to be used for the future units. This report presents safety related organizations in SR Slovenia and their activities performed in 1985. (author)

  20. Nuclear safety activities in SR Slovenia in 1985

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1986-09-15

    Currently Yugoslavia has one 632 MWe nuclear power plant of PWR design, located at Krsko in the Socialist Republic of Slovenia. NPP Krsko, which is a two-loop plant, started power operation in 1981. In general, reactor safety activities in SR Slovenia are mostly related to upgrading the safety of our NPP Krsko and to develop capabilities to be used for the future units. This report presents safety related organizations in SR Slovenia and their activities performed in 1985. (author)

  1. Results of activities of the State Office for Nuclear Safety in state supervision of nuclear safety of nuclear facilities and radiation protection in 2003

    International Nuclear Information System (INIS)

    Kovar, P.

    2004-01-01

    The report summarises results of activities of the State Office for Nuclear Safety (SUJB) in the supervision of nuclear safety and radiation protection in the Czech Republic. The first part of the report evaluates nuclear safety of nuclear installations and contains information concerning the results of supervision of radiation protection in 2003 in the Czech Republic. The second part of the report describes new responsibilities of the SUJB in the domain of nuclear, chemical, bacteriological (biological) and toxin weapons ban. (author)

  2. Centro Regional de Ciencias Nucleares (a Brazilian regional center for nuclear sciences) - activities report - 1999

    International Nuclear Information System (INIS)

    1999-12-01

    The annual activities report of 1999 of nuclear sciences regional center - Brazilian organization - introduces the next main topics: institutional relations; sectorial actions - logistic support and training, laboratory of radiation protection and dosimetry, laboratory of metrology, laboratory of chemical characterization; technical and scientific events; and financial resources and perspectives for 2000

  3. MSU SINP CDFE nuclear data activities in the nuclear reaction data centres network

    International Nuclear Information System (INIS)

    Boboshin, I.N.; Varlamov, V.V.; Komarov, S.Yu.; Peskov, N.N.; Semin, S.B.; Stepanov, M.E.; Chesnokov, V.V.

    2002-01-01

    This paper is the progress report of the Centre for Photonuclear Experiments Data, Moscow. It is a short review of the works carried out by the CDFE concerning the IAEA nuclear reaction data centers network activities from May 2001 until May 2002. and the description of the main results obtained. (a.n.)

  4. Radiopharmaceutical activities administered for paediatric nuclear medicine procedures in Australia

    International Nuclear Information System (INIS)

    Towson, J.E.; Smart, R.C.; Rossleigh, M.A.

    2001-01-01

    A survey of radiopharmaceutical activities used at the eight hospital centres specialising in paediatric nuclear medicine in Australia was conducted in 1999-2000 by the Australian and New Zealand Society of Nuclear Medicine and the Australasian Radiation Protection Society. Data on the maximum and minimum administered activities (A max and A min ) as obtained for 43 paediatric imaging procedures are presented. The results are also available on the ANZSNM and ARPS websites at: http://www.anzsnm.org.au and http://www.arps.org.au. The A max values were significantly less than the corresponding Reference Activities for adults determined in a previous study. Activities for individual patients are calculated using surface area scaling at five centres and body weight scaling at three centres. The median values of A max and A min are recommended as Paediatric Reference Activities. The effective dose to patients of various sizes for the Paediatric Reference Activities and both methods of scaling was calculated for each procedure. Copyright (2000) The Australian and New Zealand Society of Nuclear Medicine Inc

  5. EPRI activities in support of new nuclear plant deployment

    International Nuclear Information System (INIS)

    Mulford, T.

    2007-01-01

    This paper describes the challenges to new plant deployment in the United States and discusses the role of the Electric Power Research Institute (EPRI) in efforts to address these challenges. These technical challenges include completing remaining design work, licensing review, and standardization required to ensure that new LWRs are a competitive near-term option. The costs for construction, licensing, and operation of new nuclear plants are uncertain and this uncertainty, along with concerns about construction schedule form a financial challenge to investment. Because the new process for licensing nuclear power plants in the United States has not been fully demonstrated, regulatory concerns also serve as a challenge to near-term commitments to build new nuclear power plants. EPRI is working in concert with utilities and vendors to upgrade certified LWR designs and obtain certification of new LWR designs. Specific technical areas being addressed by EPRI projects include updating the Utility Requirements Document (URD), seismic resolution, radiation protection, radioactive waste management, the development of utility planning tools, and staff optimization. EPRI's key on-going project, the New Plant Deployment Program Model (NPDPM), is designed to help prospective and actual new nuclear plant managers and staff to identify schedule and resource requirements from the point of the decision to build a plant through to the start of commercial operation. This model will describe and organize key activities and assess schedule, activity duration, logic relationships and critical path analysis. The new plant licensing and deployment process is a five to ten year activity representing a significant financial investment that requires coordination with federal and state regulators, designers, architect engineers, and numerous other contributing organizations. Planning is crucial to schedule and budget control. EPRI has also supported projects to quantify the environmental

  6. A classification and summarization method for analysis of research activities in an academic faculty

    Directory of Open Access Journals (Sweden)

    Eduardo Rocha Loures

    Full Text Available Abstract Nowadays, more and more scientific research activities are carried out in different laboratories and universities, which not only play an important role in the development of science and technology, but also show a significant inference on education. The improvement of the research capability of an academic faculty can directly impact the quality of education, bring innovations to Industrial Engineering curriculum proposals, and guarantee the subjects are up to date. The investigation of the existing issues in the current research activities is usually considered as the primary and challenging step. As the output of research activities, academic articles are often considered as a kind of evidence-based resources for the investigation. Despite some methodological efforts have been made by existing article review methods, less attention has been paid to discover the implicit academic relationships among the academic staffs and to investigate their research expertise. The objective of this study is to address this existing drawback through the proposition of an Academic Information Classification and Summarization method. A case study is carried out in the Industrial and System Engineering Graduate Program (PPGEPS, PUCPR, Brazil. The result not only highlights the advantages that can be obtained from this proposition from the education perspective related to Industrial Engineering, but also can be used as evidence to balance and compare an academic staff’s research expertise and his/her teaching disciplines.

  7. Nuclear data activity at Atomic Energy Research Establishment, Savar, Dhaka

    International Nuclear Information System (INIS)

    Bhuiyan, S.I.; Molla, N.I.

    1995-01-01

    The nuclear data activity at AERE, Savar is briefly presented in this paper. Major thrust is on the customization of cross section libraries for general purpose reactor and shielding calculations. The processing codes that are available are NJOY91.91, some AMPX-Modules and the modules in SCALE-PC. Recent measurements on cross section data over the energy range 13-15 MeV at the Institute of Nuclear science and Technology have been reviewed. Measurements and calculations are based on the determination of excitation functions of neutron induced reactions on the elements and isotopes of FRT-relevant structural materials. (author)

  8. Practical applications of activation analysis and other nuclear techniques

    International Nuclear Information System (INIS)

    Lyon, W.S.

    1982-01-01

    Neeutron activation analysis (NAA) is a versatile, sensitive multielement, usually nondestructive analytical technique used to determine elemental concentrations in a variety of materials. Samples are irradiated with neutrons in a nuclear reactor, removed, and for the nondestructive technique, the induced radioactivity measured. This measurement of γ rays emitted from specific radionuclides makes possible the quantitative determination of elements present. The method is described, advantages and disadvantages listed and a number of examples of its use given. Two other nuclear methods, particle induced x-ray emission and synchrotron produced x-ray fluorescence are also briefly discussed

  9. Technical basis for classification of low-activity waste fraction from Hanford site tanks

    Energy Technology Data Exchange (ETDEWEB)

    Petersen, C.A., Westinghouse Hanford

    1996-07-17

    The overall objective of this report is to provide a technical basis to support a U.S. Nuclear Regulatory Commission determination to classify the low-activity waste from the Hanford Site single-shell and double-shell tanks as `incidental` wastes after removal of additional radionuclides and immobilization.The proposed processing method, in addition to the previous radionuclide removal efforts, will remove the largest practical amount of total site radioactivity, attributable to high-level wastes, for disposal in a deep geologic repository. The remainder of the waste would be considered `incidental` waste and could be disposed onsite.

  10. Technical basis for classification of low-activity waste fraction from Hanford site tanks

    Energy Technology Data Exchange (ETDEWEB)

    Petersen, C.A.

    1996-09-20

    The overall objective of this report is to provide a technical basis to support a U.S. Nuclear Regulatory Commission determination to classify the low-activity waste from the Hanford Site single-shell and double-shell tanks as `incidental` wastes after removal of additional radionuclides and immobilization.The proposed processing method, in addition to the previous radionuclide removal efforts, will remove the largest practical amount of total site radioactivity, attributable to high-level waste, for disposal is a deep geologic repository. The remainder of the waste would be considered `incidental` waste and could be disposed onsite.

  11. Heat-shock stress activates a novel nuclear import pathway mediated by Hikeshi

    OpenAIRE

    Imamoto, Naoko; Kose, Shingo

    2012-01-01

    Cellular stresses significantly affect nuclear transport systems. Nuclear transport pathways mediated by importin β-family members, which are active under normal conditions, are downregulated. During thermal stress, a nuclear import pathway mediated by a novel carrier, which we named Hikeshi, becomes active. Hikeshi is not a member of the importin β family and mediates the nuclear import of Hsp70s. Unlike importin β family-mediated nuclear transport, the Hikeshi-mediated nuclear import of Hsp...

  12. Error-related brain activity and error awareness in an error classification paradigm.

    Science.gov (United States)

    Di Gregorio, Francesco; Steinhauser, Marco; Maier, Martin E

    2016-10-01

    Error-related brain activity has been linked to error detection enabling adaptive behavioral adjustments. However, it is still unclear which role error awareness plays in this process. Here, we show that the error-related negativity (Ne/ERN), an event-related potential reflecting early error monitoring, is dissociable from the degree of error awareness. Participants responded to a target while ignoring two different incongruent distractors. After responding, they indicated whether they had committed an error, and if so, whether they had responded to one or to the other distractor. This error classification paradigm allowed distinguishing partially aware errors, (i.e., errors that were noticed but misclassified) and fully aware errors (i.e., errors that were correctly classified). The Ne/ERN was larger for partially aware errors than for fully aware errors. Whereas this speaks against the idea that the Ne/ERN foreshadows the degree of error awareness, it confirms the prediction of a computational model, which relates the Ne/ERN to post-response conflict. This model predicts that stronger distractor processing - a prerequisite of error classification in our paradigm - leads to lower post-response conflict and thus a smaller Ne/ERN. This implies that the relationship between Ne/ERN and error awareness depends on how error awareness is related to response conflict in a specific task. Our results further indicate that the Ne/ERN but not the degree of error awareness determines adaptive performance adjustments. Taken together, we conclude that the Ne/ERN is dissociable from error awareness and foreshadows adaptive performance adjustments. Our results suggest that the relationship between the Ne/ERN and error awareness is correlative and mediated by response conflict. Copyright © 2016 Elsevier Inc. All rights reserved.

  13. Improved Neural Signal Classification in a Rapid Serial Visual Presentation Task Using Active Learning.

    Science.gov (United States)

    Marathe, Amar R; Lawhern, Vernon J; Wu, Dongrui; Slayback, David; Lance, Brent J

    2016-03-01

    The application space for brain-computer interface (BCI) technologies is rapidly expanding with improvements in technology. However, most real-time BCIs require extensive individualized calibration prior to use, and systems often have to be recalibrated to account for changes in the neural signals due to a variety of factors including changes in human state, the surrounding environment, and task conditions. Novel approaches to reduce calibration time or effort will dramatically improve the usability of BCI systems. Active Learning (AL) is an iterative semi-supervised learning technique for learning in situations in which data may be abundant, but labels for the data are difficult or expensive to obtain. In this paper, we apply AL to a simulated BCI system for target identification using data from a rapid serial visual presentation (RSVP) paradigm to minimize the amount of training samples needed to initially calibrate a neural classifier. Our results show AL can produce similar overall classification accuracy with significantly less labeled data (in some cases less than 20%) when compared to alternative calibration approaches. In fact, AL classification performance matches performance of 10-fold cross-validation (CV) in over 70% of subjects when training with less than 50% of the data. To our knowledge, this is the first work to demonstrate the use of AL for offline electroencephalography (EEG) calibration in a simulated BCI paradigm. While AL itself is not often amenable for use in real-time systems, this work opens the door to alternative AL-like systems that are more amenable for BCI applications and thus enables future efforts for developing highly adaptive BCI systems.

  14. Modeling and Classification of Kinetic Patterns of Dynamic Metabolic Biomarkers in Physical Activity.

    Directory of Open Access Journals (Sweden)

    Marc Breit

    2015-08-01

    Full Text Available The objectives of this work were the classification of dynamic metabolic biomarker candidates and the modeling and characterization of kinetic regulatory mechanisms in human metabolism with response to external perturbations by physical activity. Longitudinal metabolic concentration data of 47 individuals from 4 different groups were examined, obtained from a cycle ergometry cohort study. In total, 110 metabolites (within the classes of acylcarnitines, amino acids, and sugars were measured through a targeted metabolomics approach, combining tandem mass spectrometry (MS/MS with the concept of stable isotope dilution (SID for metabolite quantitation. Biomarker candidates were selected by combined analysis of maximum fold changes (MFCs in concentrations and P-values resulting from statistical hypothesis testing. Characteristic kinetic signatures were identified through a mathematical modeling approach utilizing polynomial fitting. Modeled kinetic signatures were analyzed for groups with similar behavior by applying hierarchical cluster analysis. Kinetic shape templates were characterized, defining different forms of basic kinetic response patterns, such as sustained, early, late, and other forms, that can be used for metabolite classification. Acetylcarnitine (C2, showing a late response pattern and having the highest values in MFC and statistical significance, was classified as late marker and ranked as strong predictor (MFC = 1.97, P < 0.001. In the class of amino acids, highest values were shown for alanine (MFC = 1.42, P < 0.001, classified as late marker and strong predictor. Glucose yields a delayed response pattern, similar to a hockey stick function, being classified as delayed marker and ranked as moderate predictor (MFC = 1.32, P < 0.001. These findings coincide with existing knowledge on central metabolic pathways affected in exercise physiology, such as β-oxidation of fatty acids, glycolysis, and glycogenolysis. The presented modeling

  15. Regulatory Activities on Civil Nuclear Safety Equipment in China

    International Nuclear Information System (INIS)

    Gaoshang, Lu; Choi, Kwang Sik

    2011-01-01

    It is stipulated in IAEA Fundamental Safety Principles (SF1) that the fundamental safety objective is to protect people and the environment from harmful effects of ionizing radiation. The fundamental safety objective applies for all facilities and activities and for all stages over the lifetime of a facility or radiation source, including planning, sitting, design, manufacturing, construction, commissioning and operation, as well as decommissioning and closure. So, according to the requirement, the related activities such as design, manufacturing, installation and non-destructive test that conducted on civil nuclear equipment should be well controlled by the vendors, the owner of the nuclear power plants and the regulatory body. To insure the quality of those equipment, Chinese government had taken a series of measures to regulate the related activities on them

  16. Radiation shielding activities at the OECD/Nuclear Energy Agency

    International Nuclear Information System (INIS)

    Sartori, Enrico; Vaz, Pedro

    2000-01-01

    The OECD Nuclear Energy Agency (NEA) has devoted considerable effort over the years to radiation shielding issues. The issues are addressed through international working groups. These activities are carried out in close co-ordination and co-operation with the Radiation Safety Information Computational Center (RSICC). The areas of work include: basic nuclear data activities in support of radiation shielding, computer codes, shipping cask shielding applications, reactor pressure vessel dosimetry, shielding experiments database. The method of work includes organising international code comparison exercises and benchmark studies. Training courses on radiation shielding computer codes are organised regularly including hands-on experience in modelling skills. The scope of the activity covers mainly reactor shields and spent fuel transportation packages, but also fusion neutronics and in particular shielding of accelerators and irradiation facilities. (author)

  17. Nuclear design of a very-low-activation fusion reactor

    International Nuclear Information System (INIS)

    Cheng, E.T.; Hopkins, G.R.

    1983-06-01

    An investigation was conducted to study the nuclear design aspects of using very-low-activation materials, such as SiC, MgO, and aluminum for fusion-reactor first wall, blanket, and shield applications. In addition to the advantage of very-low radioactive inventory, it was found that the very-low-activation fusion reactor can also offer an adequate tritium-breeding ratio and substantial amount of blanket nuclear heating as a conventional-material-structured reactor does. The most-stringent design constraint found in a very-low-activation fusion reactor is the limited space available in the inboard region of a tokamak concept for shielding to protect the superconducting toroidal field coil. A reference design was developed which mitigates the constraint by adopting a removable tungsten shield design that retains the inboard dimensions and gives the same shield performance as the reference STARFIRE tokamak reactor design

  18. Active neutron technique for detecting attempted special nuclear material diversion

    International Nuclear Information System (INIS)

    Smith, G.W.; Rice, L.G. III.

    1979-01-01

    The identification of special nuclear material (SNM) diversion is necessary if SNM inventory control is to be maintained at nuclear facilities. (Special nuclear materials are defined for this purpose as either 235 U of 239 Pu.) Direct SNM identification by the detection of natural decay or fission radiation is inadequate if the SNM is concealed by appropriate shielding. The active neutron interrogation technique described combines direct SNM identification by delayed fission neutron (DFN) detection with implied SNM detection by the identification of materials capable of shielding SNM from direct detection. This technique is being developed for application in an unattended material/equipment portal through which items such as electronic instruments, packages, tool boxes, etc., will pass. The volume of this portal will be 41-cm wide, 53-cm high and 76-cm deep. The objective of this technique is to identify an attempted diversion of at least 20 grams of SNM with a measurement time of 30 seconds

  19. Argentine activities on fuels for nuclear generation stations

    International Nuclear Information System (INIS)

    Olezza, R.L.; Valesi, J.

    1995-01-01

    In the last six years, significant changes have taken place in the nuclear fuel activity field in Argentina, therefore all the areas of the nuclear fuel cycle have been strongly influenced by these. The strategies carried out by CNEA to give an initial answer to the modifications of the domestic and international context of the nuclear fuel cycle were described in the previous Conference. Three years later, it is possible to appreciate the first results of the application of those strategies, and also that the frame has continued not only evolving and requiring new answers, but adapting and accentuating some strategies as well. A brief review of those results is presented here, together with a summary of the condition of the current situation and of the proposals to face it. (author)

  20. System to detect nuclear materials by active neutron method

    International Nuclear Information System (INIS)

    Koroev, M.; Korolev, Yu.; Lopatin, Yu.; Filonov, V.

    1999-01-01

    The report presents the results of the development of the system to detect nuclear materials by active neutron method measuring delayed neutrons. As the neutron source the neutron generator was used. The neutron generator was controlled by the system. The detectors were developed on the base of the helium-3 counters. Each detector consist of 6 counters. Using a number of such detectors it is possible to verify materials stored in different geometry. There is an spectrometric scintillator detector in the system which gives an additional functional ability to the system. The system could be used to estimate the nuclear materials in waste, to detect the unauthorized transfer of the nuclear materials, to estimate the material in tubes [ru

  1. Nuclear Activities in Argentina. A short Review. Part 2

    International Nuclear Information System (INIS)

    Coll, Jorge A.; Radicella, Renato

    2002-01-01

    The second part of this historical review covers the 'industrial' period of nuclear energy in Argentina. The National Atomic Energy Commission (CNEA), after a feasibility study carried out by argentine experts, in 1968 signed a contract to build a nuclear power plant. This PHWR plant, Atucha 1, of 310 MWe was inaugurated in 1973 and it is still operating. The same year the CNEA signed a new contract to build a CANDU type plant of 600 MWe, Embalse, that was finally inaugurated in 1983. The construction of a third plant, Atucha 2 of 745 MWe also a PHWR, was started in 1980 but was arrested in 1994, when more than 80% was completed, and it is still waiting a political decision to reach completion. Within the development of the nuclear power program, a fuel element production plant for the Argentine power reactors was built by the CNEA and a heavy water production plant of 250 tons/year was inaugurated in 1993 in the southern province of Neuquen. A pilot spent fuel reprocessing plant was designed but its construction was not completed. At the same time, a pilot gaseous diffusion plant was constructed in order to produce enriched uranium for research reactors. The activities in the field of radioisotope and radiation applications were also intensive, mainly in nuclear medicine and food preservation. A facility to fabricate sealed sources was built to process the Co 60 produced by the Embalse power plant. Argentina was active in the export of nuclear facilities: CNEA built a complete nuclear research center in Peru, and the Argentine company INVAP built research reactors in Algeria and Egypt. The same company is now building a research reactor in Australia. (author)

  2. Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Republic of Korea

    International Nuclear Information System (INIS)

    2009-01-01

    This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection) (Protection of workers; Protection of the public); 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Minister of Education, Science and Technology, including the Nuclear Energy Bureau; Minister of Knowledge Economy); 2. Advisory bodies (Atomic Energy Commission; Atomic Energy Safety Commission); 3. Public and semi-public agencies (Korean Atomic Energy Research Institute - KAERI; Korean Institute for Nuclear Safety - KINS; Korean Electric Power Company - KEPCO; Korean Hydro and Nuclear Power - KHNP)

  3. Nuclear power plant control and instrumentation activities in Finland

    International Nuclear Information System (INIS)

    Haapanen, P.; Wahlstroem, B.

    1992-01-01

    Finland has remarkable achievements in nuclear power. The existing four plants have some of the best operating records in the world - high capacity factors, low occupational doses and short refuelling outages. Public opinion was strongly turned against nuclear power after Chernobyl accident, and the previous government decided not to allow for the construction of a fifth nuclear unit during its period of reign. The opposition has however slowly been diminishing. According to the latest polls the opinion is almost balanced. Finnish power companies are going to file an application for a decision-in-principle to build a new plant to the new government appointed in April 1991. A readiness to start new construction project immediately after a positive political decision is made has been maintained during the intermediate period. Continuous research, development, modification and upgrading work provide important components of the good operational history of the Finnish nuclear power plants. Efforts have also been devoted to identifying possible new problems arising from the use of distributed digital C and I technology. The following a short description is summarizing recent activities related to the C and I-systems of the nuclear power plants. (author). 3 tab

  4. Nuclear data and reactor physics activities in Indonesia

    Energy Technology Data Exchange (ETDEWEB)

    Liem, P.H. [National Atomic Energy Agency, Tangerang (Indonesia). Center for Multipurpose Reactor

    1998-03-01

    The nuclear data and reactor physics activities in Indonesia, especially, in the National Atomic Energy Agency are presented. In the nuclear data field, the Agency is now taking the position of a user of the main nuclear data libraries such as JENDL and ENDF/B. These nuclear data libraries become the main sources for producing problem dependent cross section sets that are needed by cell calculation codes or transport codes for design, analysis and safety evaluation of research reactors. In the reactor physics field, besides utilising the existing core analysis codes obtained from bilateral and international co-operation, the Agency is putting much effort to self-develop Batan`s codes for reactor physics calculations, in particular, for research reactor and high temperature reactor design, analysis and fuel management. Under the collaboration with JAERI, Monte Carlo criticality calculations on the first criticality of RSG GAS (MPR-30) first core were done using JAERI continuous energy, vectorized Monte Carlo code, MVP, with JENDL-3.1 and JENDL-3.2 nuclear data libraries. The results were then compared with the experiment data collected during the commissioning phase. Monte Carlo calculations with both JENDL-3.1 and -3.2 libraries produced k{sub eff} values with excellent agreement with experiment data, however, systematically, JENDL-3.2 library showed slightly higher k{sub eff} values than JENDL-3.1 library. (author)

  5. The Orphan Nuclear Receptor TR4 Is a Vitamin A-activated Nuclear Receptor

    Energy Technology Data Exchange (ETDEWEB)

    Zhou, X. Edward; Suino-Powell, Kelly M.; Xu, Yong; Chan, Cee-Wah; Tanabe, Osamu; Kruse, Schoen W.; Reynolds, Ross; Engel, James Douglas; Xu, H. Eric (Michigan-Med); (Van Andel)

    2015-11-30

    Testicular receptors 2 and 4 (TR2/4) constitute a subgroup of orphan nuclear receptors that play important roles in spermatogenesis, lipid and lipoprotein regulation, and the development of the central nervous system. Currently, little is known about the structural features and the ligand regulation of these receptors. Here we report the crystal structure of the ligand-free TR4 ligand binding domain, which reveals an autorepressed conformation. The ligand binding pocket of TR4 is filled by the C-terminal half of helix 10, and the cofactor binding site is occupied by the AF-2 helix, thus preventing ligand-independent activation of the receptor. However, TR4 exhibits constitutive transcriptional activity on multiple promoters, which can be further potentiated by nuclear receptor coactivators. Mutations designed to disrupt cofactor binding, dimerization, or ligand binding substantially reduce the transcriptional activity of this receptor. Importantly, both retinol and retinoic acid are able to promote TR4 to recruit coactivators and to activate a TR4-regulated reporter. These findings demonstrate that TR4 is a ligand-regulated nuclear receptor and suggest that retinoids might have a much wider regulatory role via activation of orphan receptors such as TR4.

  6. Perspective of nuclear power policy change and trend of nuclear industry activities from energy policy of European countries

    International Nuclear Information System (INIS)

    Murakami, Tomoko; Matsuo, Yuji; Nagatomi, Yu

    2009-01-01

    European countries of nuclear power phase-out have changed to commit to the future of nuclear energy due to the intended low-carbon power, the energy security concerns and the need of replacement reactors as current reactors approach the end of operating lives, as Italian government has passed legislation to build new nuclear power plants. This article described the perspective of nuclear power policy changes in UK, Italy an Sweden and the business trend and the SWOT analysis of related electric utilities (EDF, Enel and Vattenfall) and nuclear industries (Areva NP, Sheffield Forgemasters, ENSA and Studsvik). Policy implications obtained from this analysis were commented for Japanese nuclear industry activities. (T. Tanaka)

  7. OECD Nuclear Energy Agency. 7. activity report 1978

    International Nuclear Information System (INIS)

    1978-01-01

    This work is concerned with trends in nuclear power; basic radiation protection norms and their application; radiation protection considerations relating to the nuclear fuel cycle; radioactive waste management; safety research for reactors, nuclear ships and fuel cycle; licensing of nuclear installations; nuclear law; nuclear fuel cycle studies; technical cooperation; scientific support for nuclear technology and NEA data bank

  8. Managing Nuclear Knowledge: IAEA Activities and International Coordination. Asian Network for Education in Nuclear Technology (ANENT)

    International Nuclear Information System (INIS)

    2007-07-01

    The important role which the International Atomic Energy Agency (IAEA) plays in assisting Member States in the preservation and enhancement of nuclear knowledge and in facilitating international collaboration in this area has been recognized by the General Conference of the International Atomic Energy Agency in resolutions GC(46)/RES/11B, GC(47)/RES/10B, GC(48)/RES/13 and GC(50)/RES/13. The IAEA continues to support the enhancement and stabilization of nuclear education and training with the objective of securing the availability of qualified human resources for the nuclear sector. Its most important approaches are networking regional educational institutions and fostering cooperation to develop harmonized curricula, prepare and disseminate teaching materials. The Asian Network for Education in Nuclear Technology (ANENT), established by the IAEA in 2004, became operational in 2005. An ANENT website has been set up and is being expanded, such as developing a long-distance learning platform. Also, a reference curriculum for nuclear engineering is being developed with the cooperation of external partners.This booklet summarizes the main activities being carried out by the IAEA with regard to the Asian Network for Education in Nuclear Technology (ANENT) and other related activities including those completed during the period 2002–2005. It briefly describes the background information on the events leading to the formation of the ANENT; the terms of reference formulated at the second Coordination Committee meeting held in Vietnam, October 2005; and objectives, strategy and other institutional and managerial policies reaffirmed by the members. CD-ROM attached to the printed booklet containing nearly all of the background material in full text, including policy level papers, reports, presentations made by Member States, and meeting summaries

  9. Differences in physical-fitness test scores between actively and passively recruited older adults : Consequences for norm-based classification

    NARCIS (Netherlands)

    van Heuvelen, M.J.G.; Stevens, M.; Kempen, G.I.J.M.

    This study investigated differences in physical-fitness test scores between actively and passively recruited older adults and the consequences thereof for norm-based classification of individuals. Walking endurance, grip strength, hip flexibility, balance, manual dexterity, and reaction time were

  10. Pattern classification of brain activation during emotional processing in subclinical depression : psychosis proneness as potential confounding factor

    NARCIS (Netherlands)

    Modinos, Gemma; Mechelli, Andrea; Pettersson-Yeo, William; Allen, Paul; McGuire, Philip; Aleman, Andre

    2013-01-01

    We used Support Vector Machine (SVM) to perform multivariate pattern classification based on brain activation during emotional processing in healthy participants with subclinical depressive symptoms. Six-hundred undergraduate students completed the Beck Depression Inventory II (BDI-II). Two groups

  11. Anti-nuclear activities and critics concerning nuclear power plant sites

    International Nuclear Information System (INIS)

    Rhee, We-Beg

    2000-01-01

    Korea has dynamic nuclear power expansion programs, operating 16 nuclear units producing 13710 MW in total located on 4 different sites. Last year, nuclear power supplied over 40 % of national total electricity demands. In 1998, Korean government initiated re-designation work investigating circumstance changes to rule out the unnecessary sites in consideration of a long-term power supply. Korean government has determined to expand the Ulchin site and to designate one point of Woolju county as a new candidate site, and ruled out the rest candidate sites at the end of 1998. About such a governmental measure, the two areas show different reactions. Ulchin where nuclear power plant has been operated safely for about 10 years was likely to accept the governmental determination in spite of some opposition and called for several financial supports for local development. WooIju county, however, showed a strong opposition among local environmental groups and autonomous politicians, and they presented a variety of anti-nuclear activities including demonstrations mainly at the neighbouring metropolis, Ulsan city

  12. Development of materials of low activation for nuclear fusion

    International Nuclear Information System (INIS)

    Kamata, Koji

    1986-01-01

    Unlike nuclear fission, in nuclear fusion, it is a feature that activated products are not formed, but this merit is to be lost if the structural materials of the equipment are activated by generated neutrons. Accordingly, the elements which are activated by neutrons must be excluded from the structural materials in nuclear fusion reactors and fusion experiment apparatuses. As the result of evaluating the materials for low induced activation, aluminum alloys are the most promising. Aluminum alloys have also excellent properties in gas release, the thermal stress of first walls due to the temperature distribution, vaporizing quantity at the time of disruption and so on. However, in the existing aluminum alloys, the lowering of strength above 150 deg C is remarkable, and when the aluminum walls of vacuum vessels are too thick, the rate of tritium breeding may lower. The Institute of Plasma Physics, Nagoya University, carried out the total design of a tokamak made of an aluminum alloy for the first time in the world. In this paper, the properties of the aluminum alloy and the feasibility of its industrial manufacture are described, and the course of improving this alloy is pointed out. Improved 5083 alloy and Al-4 % Mg-1 % Li alloy were investigated. The industrial manufacture of large plates with this Al-Mg-Li alloy is possible now. (Kako, I.)

  13. The management plan preparation activities nuclear power plant in Indonesia

    International Nuclear Information System (INIS)

    Utomo

    2011-01-01

    A feasibility Study that has been updated show that two nuclear power units with each unit of power up to 1000 MWe can represent decently an economical alternative energy supply. It added that the available time schedule was quite tight so that the preparation for the development must be starting first. This paper will discuss the preparation of plans of the first nuclear power plant which includes program activities, the structure of contracts, schedules of activities and funding. From the information obtained to date that in addition to a candidate site that is ready to be built in Muria peninsula is still required another potential alternative site besides to search other complete data information. This site investigation activities completed within the time schedule was passed ''critical path'', so that these activities should be carried out intensively and obey the time. This paper describes the steps that need to be prepared to welcome the first nuclear power plant, after reviewing the various input above and apply the reality in Indonesia as the initial conditions. (author)

  14. A comparison of activity classification in younger and older cohorts using a smartphone

    International Nuclear Information System (INIS)

    Del Rosario, Michael B; Wang, Kejia; Wang, Jingjing; Liu, Ying; Lovell, Nigel H; Redmond, Stephen J; Brodie, Matthew; Delbaere, Kim; Lord, Stephen R

    2014-01-01

    Automatic recognition of human activity is useful as a means of estimating energy expenditure and has potential for use in fall detection and prediction. The emergence of the smartphone as a ubiquitous device presents an opportunity to utilize its embedded sensors, computational power and data connectivity as a platform for continuous health monitoring. In the study described herein, 37 older people (83.9  ±  3.4 years) performed a series of activities of daily living (ADLs) while a smartphone (containing a triaxial accelerometer, triaxial gyroscope and barometric pressure sensor) was placed in the front pocket of their trousers. These results are compared to a similar trial conducted previously in which 20 young people (21.9  ±  1.65 years) were asked to perform the same ADLs using the same smartphone (again in the front pocket of their trousers). In each trial, the participants were asked to perform several activities (standing, sitting, lying, walking on level ground, up and down staircases, and riding an elevator up and down) in a free-living environment. During each acquisition session, the internal sensor signals were recorded and subsequently used to develop activity classifiers based on a decision tree algorithm that classified ADL in epochs of ∼1.25 s. When training and testing with the younger cohort, using a leave-one-out cross validation procedure, a total classification sensitivity of 80.9% ± 9.57% (κ = 0.75  ±  0.12) was obtained. Retraining and testing on the older cohort, again using cross validation, gives a comparable total class sensitivity of 82.0% ± 8.88% (κ =0.74  ±  0.12). When trained with the younger group and tested on the older group, a total class sensitivity of 69.2% ± 24.8% (95% confidence interval [69.6%, 70.6%]) and κ = 0.60  ±  0.27 (95% confidence interval [0.58, 0.59]) was obtained. When trained on the older group and tested on the younger group, a total class sensitivity of

  15. A comparison of activity classification in younger and older cohorts using a smartphone.

    Science.gov (United States)

    Del Rosario, Michael B; Wang, Kejia; Wang, Jingjing; Liu, Ying; Brodie, Matthew; Delbaere, Kim; Lovell, Nigel H; Lord, Stephen R; Redmond, Stephen J

    2014-11-01

    Automatic recognition of human activity is useful as a means of estimating energy expenditure and has potential for use in fall detection and prediction. The emergence of the smartphone as a ubiquitous device presents an opportunity to utilize its embedded sensors, computational power and data connectivity as a platform for continuous health monitoring. In the study described herein, 37 older people (83.9  ±  3.4 years) performed a series of activities of daily living (ADLs) while a smartphone (containing a triaxial accelerometer, triaxial gyroscope and barometric pressure sensor) was placed in the front pocket of their trousers. These results are compared to a similar trial conducted previously in which 20 young people (21.9  ±  1.65 years) were asked to perform the same ADLs using the same smartphone (again in the front pocket of their trousers).In each trial, the participants were asked to perform several activities (standing, sitting, lying, walking on level ground, up and down staircases, and riding an elevator up and down) in a free-living environment. During each acquisition session, the internal sensor signals were recorded and subsequently used to develop activity classifiers based on a decision tree algorithm that classified ADL in epochs of ~1.25 s. When training and testing with the younger cohort, using a leave-one-out cross validation procedure, a total classification sensitivity of 80.9% ± 9.57% ([Formula: see text] = 0.75  ±  0.12) was obtained. Retraining and testing on the older cohort, again using cross validation, gives a comparable total class sensitivity of 82.0% ± 8.88% ([Formula: see text] =0.74  ±  0.12).When trained with the younger group and tested on the older group, a total class sensitivity of 69.2% ± 24.8% (95% confidence interval [69.6%, 70.6%]) and [Formula: see text] = 0.60  ±  0.27 (95% confidence interval [0.58, 0.59]) was obtained. When trained on the older group and tested on the younger group

  16. Defining active sacroiliitis on MRI for classification of axial spondyloarthritis: update by the ASAS MRI working group

    DEFF Research Database (Denmark)

    Lambert, Robert G W; Bakker, Pauline A C; van der Heijde, Désirée

    2016-01-01

    OBJECTIVES: To review and update the existing definition of a positive MRI for classification of axial spondyloarthritis (SpA). METHODS: The Assessment in SpondyloArthritis International Society (ASAS) MRI working group conducted a consensus exercise to review the definition of a positive MRI...... for inclusion in the ASAS classification criteria of axial SpA. Existing definitions and new data relevant to the MRI diagnosis and classification of sacroiliitis and spondylitis in axial SpA, published since the ASAS definition first appeared in print in 2009, were reviewed and discussed. The precise wording...... of the existing definition was examined in detail and the data and a draft proposal were presented to and voted on by the ASAS membership. RESULTS: The clear presence of bone marrow oedema on MRI in subchondral bone is still considered to be the defining observation that determines the presence of active...

  17. Practical public acceptance activities in Japan Nuclear Fuel Company

    International Nuclear Information System (INIS)

    Ogawa, Junko

    1996-01-01

    JNF PA is characterized by 3 symbolic 'F's if concisely expressed. The first F comes from the Focus F, which stands for JNF's focused or customized attendance to what visitors want. The second F from Friendly F, which symbolizes JNF's simple and easy presentations in an amenable atmosphere without use of specialist language. The last F from First Hand, which means the visitors given the chance to experience themselves in actual touch with uranium. Our nuclear fuel manufacturing facility is one of the limited spots for such an experience. Their encounter with this 'actual reality' is worth a millions of words. Many citizens of Yokosuka have been invited to our facility at every summer holiday season for the past 6 years. 60% of them answered to our survey: 'Yes, I came here with fear in nuclear angry' but 75% admitted 'I now feel easy with it' after they listened to the issues of energy and environment, watched the animated nuclear fuel cycle and toured through our nuclear fuel manufacturing plant. This is an justified encouragement to what we devote in PA. What we should do is two fold. One is to address our PA to younger generations. Another is to support to those PA activities at newly-planned sites for nuclear power generation. For the former case, we now are approaching educational and tutorial personnel to provide pupils with opportunity of touring our facilities. For the latter, we sincerely endeavor to tune up to the visitors from such site areas, with elaboration based on advance information, rather than mere briefings. Like the Japanese tea ceremonial spirit of 'we happen to meet but once for all', why not fulfilling our role from the spot of a nuclear fuel manufacturing facility? (J.P.N.)

  18. Activation analysis in zirconium and alloys for nuclear application

    International Nuclear Information System (INIS)

    Cohen, I.M.; Mila, M.I.; Gomez, C.D.

    1981-01-01

    A study has been performed with the purpose to ascertain the possibilities of using neutron activation analysis in non-destructive determination of several elements present in zirconium and its alloys. Those elements must be limited within acceptable top levels, in accordance to standards for nuclear applications. The experimental techniques used are described and the results obtained are discussed, showing that the method is adequate for determining Cl, Co, Hf, Mn, and W, but not Ni and U. (M.E.L.) [es

  19. High energy halogen atom reactions activated by nuclear transformations

    International Nuclear Information System (INIS)

    Rack, E.P.

    1990-05-01

    This program, which has been supported for twenty-four years by the Us Atomic Energy Commission and its successor agencies, has produced significant advances in the understanding of the mechanisms of chemical activation by nuclear processes; the stereochemistry of radioactivity for solution of specific problems. This program was contributed to the training of approximately seventy scientists at various levels. This final report includes a review of the areas of research and chronological tabulation of the publications

  20. Activation, decay heat, and waste classification studies of the European DEMO concept

    Science.gov (United States)

    Gilbert, M. R.; Eade, T.; Bachmann, C.; Fischer, U.; Taylor, N. P.

    2017-04-01

    Inventory calculations have a key role to play in designing future fusion power plants because, for a given irradiation field and material, they can predict the time evolution in chemical composition, activation, decay heat, gamma-dose, gas production, and even damage (dpa) dose. For conceptual designs of the European DEMO fusion reactor such calculations provide information about the neutron shielding requirements, maintenance schedules, and waste disposal prospects; thereby guiding future development. Extensive neutron-transport and inventory calculations have been performed for a reference DEMO reactor model with four different tritium-breeding blanket concepts. The results have been used to chart the post-operation variation in activity and decay heat from different vessel components, demonstrating that the shielding performance of the different blanket concepts—for a given blanket thickness—varies significantly. Detailed analyses of the simulated nuclide inventories for the vacuum vessel (VV) and divertor highlight the most dominant radionuclides, potentially suggesting how changes in material composition could help to reduce activity. Minor impurities in the raw composition of W used in divertor tiles, for example, are shown to produce undesirable long-lived radionuclides. Finally, waste classifications, based on UK regulations, and a recycling potential limit, have been applied to estimate the time-evolution in waste masses for both the entire vessel (including blanket modules, VV, divertor, and some ex-vessel components) and individual components, and also to suggest when a particular component might be suitable for recycling. The results indicate that the large mass of the VV will not be classifiable as low level waste on the 100 year timescale, but the majority of the divertor will be, and that both components will be potentially recyclable within that time.

  1. A proposal for cooperative activities between Japan and Indonesia in the field of nuclear research and nuclear education

    International Nuclear Information System (INIS)

    Subki, Iyos

    2008-01-01

    Development and realization of cooperative activities between Japan and Indonesia in nuclear research and education is indeed very important for scientists and engineers of both countries. This bilateral cooperation can easily be expanded into a regional cooperation benefiting the scholars from Asian region which is expecting a New Nuclear Age in the 21st Century. To develop and realize this cooperative activities, in the first step, we invite the ideas of our partners in the Nuclear Institution and in Universities. They are eager to have and undertake this cooperation effort. For nuclear research activities, they have proposed several topics which include: advanced radioactive waste technology and management in a nuclear power plant, innovative fuel development for LWR's, gas cooled reactor for electricity and hydrogen production and a topic on design and construction of high energy accelerator. Institute of Technology - Bandung (ITB), University of Gajah Mada (UGM) and School of Nuclear Technology (STTN/BATAN) are interested in cooperative works which include: joint development of standard curriculum for M.Sc. level in response to increased activities in nuclear research and nuclear power development, exchange of guest lecturers, and exchange of M.Sc. level students. With this cooperation, we want to put very special emphasis on nuclear human resources development (nuclear - HRD) in anticipation of the upcoming nuclear era. (author)

  2. Links with NEA activities: Nuclear Data services and WPs

    International Nuclear Information System (INIS)

    Cabellos, O.

    2016-01-01

    During the last three years a significant number of international activities have been undertaken on Primary Radiation Damage (PRD): the Expert Group on Primary Radiation Damage belonging to the Working Party on Multi-scale Modelling of Fuels and Structural Materials for Nuclear Systems (WPMM- OECD/NEA/NSC), Coordinated Research Project (CRP) on “Primary Radiation Damage Cross Sections” (IAEA/NDS) and the activities of the European Consortium on Nuclear Data Development and Analysis for Fusion within the Fusion for Energy (F4E) Program. NEA activities related to fuels and structural materials are coordinated by the Working Party on Multi-scale Modelling of Fuels and Structural Materials for Nuclear Systems, WPMM. In May 2015, the Expert Group on “Primary Radiation Damage” reviewed the limitation of the NRT-dpa standard, and recommended a new improved standard of primary damage characteristics, the arc-dpa. Recently, the new Expert Group on Structural Materials Modelling (SMM) has been created to enhance efforts on the multiscale modelling approach applied to structural materials, in order to investigate phenomena that can not be studied experimentally, predicting how the nanostructure and the microchemistry changes under irradiation

  3. IAEA Activities in Nuclear High Temperature Heat for Industrial Processes

    International Nuclear Information System (INIS)

    Reitsma, Frederik

    2017-01-01

    IAEA activities to support Member States: Information Exchange; Modelling and Simulations; Development of Methodologies; Safety; Technology Support; Education and Training; Knowledge Preservation. Assist MSs with national nuclear programmes; Support innovations in nuclear power deployment; Facilitate and assist international R&D collaborations. Interest in HTGR technology • The IAEA activities in the area of HTGR are guided by the recommendations of the TWG-GCRs – Currently 14 members: China, France, Germany, Indonesia, Japan, Korea (Rep. of), Netherlands, Russian Federation, South Africa, Switzerland, Turkey, Ukraine, United Kingdom, United States of America – 3 International Organizations: OECD/NEA, European Commission, Gen-IV Forum. – 2 new members in 2017: Poland and Singapore. Meetings • Meet every 24 months • Next meeting: 30 October – 1 November 2017 • Other Member states with some activities on HTGRs – Kazakhstan – history of close cooperation with Japan – Saudi Arabia – feasibility study for HTGRs to provide heat for the petro-chemical industry – Canada – three HTR designs under consideration in the nuclear regulator pre-licensing vendor design reviews

  4. OECD Nuclear Energy Agency activities on PTS evaluation

    International Nuclear Information System (INIS)

    Miller, A.

    1997-01-01

    The Safety Division of the OECD Nuclear Energy Agency provides the secretariat for the Committee on the Safety of Nuclear Installations (CSNI), which deals with technological aspects, and for the Committee for Nuclear Regulatory Activities (CNRA) dealing with regulatory aspects. Under these committees, activities are carried out through five Principal Working Groups (PWGs). The relevant group for PTS is PWG-3 on the integrity of structures and components. There is also PWG-2 on coolant system behavior, but the thermal hydraulic aspects of PTS have not been considered by PWG-2. PWG-3 carries out it work in a similar manner to the IAEA IWG LMNPP, by preparing reports and organizing round robins, Specialists Meetings and Workshops. The general context of RPV PTS has been considered in several workshops: on the 'Complementary roles of Fracture Mechanics and Non-Destructive Examination in the Safety Assessment of Components' in Wuerenlingen in 1988; on the 'Safety Assessment of RPVs' in Espoo in 1990; and on 'Fracture Mechanics Verification by Large Scale Testing' (joint with IAEA) at Oak Ridge in 1992. Activities specific to PTS have been an international survey on regulatory practices on PTS carried out in 1991, and a series of fracture round robins addressing PTS conditions organized by GRS in Germany and ORNL in the USA. 3 refs, 5 tabs

  5. OECD Nuclear Energy Agency activities on PTS evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Miller, A [NEA Nuclear Safety Div., Issy-les-Moulineaux (France)

    1997-09-01

    The Safety Division of the OECD Nuclear Energy Agency provides the secretariat for the Committee on the Safety of Nuclear Installations (CSNI), which deals with technological aspects, and for the Committee for Nuclear Regulatory Activities (CNRA) dealing with regulatory aspects. Under these committees, activities are carried out through five Principal Working Groups (PWGs). The relevant group for PTS is PWG-3 on the integrity of structures and components. There is also PWG-2 on coolant system behavior, but the thermal hydraulic aspects of PTS have not been considered by PWG-2. PWG-3 carries out it work in a similar manner to the IAEA IWG LMNPP, by preparing reports and organizing round robins, Specialists Meetings and Workshops. The general context of RPV PTS has been considered in several workshops: on the `Complementary roles of Fracture Mechanics and Non-Destructive Examination in the Safety Assessment of Components` in Wuerenlingen in 1988; on the `Safety Assessment of RPVs` in Espoo in 1990; and on `Fracture Mechanics Verification by Large Scale Testing` (joint with IAEA) at Oak Ridge in 1992. Activities specific to PTS have been an international survey on regulatory practices on PTS carried out in 1991, and a series of fracture round robins addressing PTS conditions organized by GRS in Germany and ORNL in the USA. 3 refs, 5 tabs.

  6. Development of a methodology for safety classification on a non-reactor nuclear facility illustrated using an specific example; Entwicklung einer Methodik zur Sicherheitsklassifizierung fuer eine kerntechnische Anlage ohne Reaktor an einem spezifischen Beispiel

    Energy Technology Data Exchange (ETDEWEB)

    Scheuermann, F.; Lehradt, O.; Traichel, A. [NUKEM Technologies Engineering Services GmbH, Alzenau (Germany)

    2015-07-01

    To realize the safety of personnel and environment systems and components of nuclear facilities are classified according to their potential danger into safety classes. Based on this classification different demands on the manufacturing quality result. The objective of this work is to present the standardized method developed by NUKEM Technologies Engineering Services for the categorization into the safety classes restricted to Non-reactor nuclear facilities (NRNF). Exemplary the methodology is used on the complex Russian normative system (four safety classes). For NRNF only the lower two safety classes are relevant. The classification into the lowest safety class 4 is accordingly if the maximum resulting dose following from clean-up actions in case of incidents/accidents remains below 20 mSv and the volume activity restrictions of set in NRB-99/2009 are met. The methodology is illustrated using an example. In short the methodology consists of: - Determination of the working time to remove consequences of incidents, - Calculation of the dose resulting from direct radiation and due to inhalation during these works. The application of this methodology avoids over-conservative approaches. As a result some previously higher classified equipment can be classified into the lower safety class.

  7. Waste Classification based on Waste Form Heat Generation in Advanced Nuclear Fuel Cycles Using the Fuel-Cycle Integration and Tradeoffs (FIT) Model

    Energy Technology Data Exchange (ETDEWEB)

    Denia Djokic; Steven J. Piet; Layne F. Pincock; Nick R. Soelberg

    2013-02-01

    This study explores the impact of wastes generated from potential future fuel cycles and the issues presented by classifying these under current classification criteria, and discusses the possibility of a comprehensive and consistent characteristics-based classification framework based on new waste streams created from advanced fuel cycles. A static mass flow model, Fuel-Cycle Integration and Tradeoffs (FIT), was used to calculate the composition of waste streams resulting from different nuclear fuel cycle choices. This analysis focuses on the impact of waste form heat load on waste classification practices, although classifying by metrics of radiotoxicity, mass, and volume is also possible. The value of separation of heat-generating fission products and actinides in different fuel cycles is discussed. It was shown that the benefits of reducing the short-term fission-product heat load of waste destined for geologic disposal are neglected under the current source-based radioactive waste classification system , and that it is useful to classify waste streams based on how favorable the impact of interim storage is in increasing repository capacity.

  8. Classification of light sources and their interaction with active and passive environments

    Science.gov (United States)

    El-Dardiry, Ramy G. S.; Faez, Sanli; Lagendijk, Ad

    2011-03-01

    Emission from a molecular light source depends on its optical and chemical environment. This dependence is different for various sources. We present a general classification in terms of constant-amplitude and constant-power sources. Using this classification, we have described the response to both changes in the local density of states and stimulated emission. The unforeseen consequences of this classification are illustrated for photonic studies by random laser experiments and are in good agreement with our correspondingly developed theory. Our results require a revision of studies on sources in complex media.

  9. Classification of light sources and their interaction with active and passive environments

    International Nuclear Information System (INIS)

    El-Dardiry, Ramy G. S.; Faez, Sanli; Lagendijk, Ad

    2011-01-01

    Emission from a molecular light source depends on its optical and chemical environment. This dependence is different for various sources. We present a general classification in terms of constant-amplitude and constant-power sources. Using this classification, we have described the response to both changes in the local density of states and stimulated emission. The unforeseen consequences of this classification are illustrated for photonic studies by random laser experiments and are in good agreement with our correspondingly developed theory. Our results require a revision of studies on sources in complex media.

  10. INFRARED CLASSIFICATION AND LUMINOSITIES FOR DUSTY ACTIVE GALACTIC NUCLEI AND THE MOST LUMINOUS QUASARS

    International Nuclear Information System (INIS)

    Weedman, Daniel; Sargsyan, Lusine; Houck, James; Barry, Donald; Lebouteiller, Vianney

    2012-01-01

    Mid-infrared spectroscopic measurements from the Infrared Spectrometer (IRS) on Spitzer are given for 125 hard X-ray active galactic nuclei (AGNs; 14-195 keV) from the Swift Burst Alert Telescope (BAT) sample and for 32 AGNs with black hole masses (BHMs) from reverberation mapping. The 9.7 μm silicate feature in emission or absorption defines an infrared AGN classification describing whether AGNs are observed through dust clouds, indicating that 55% of the BAT AGNs are observed through dust. The mid-infrared dust continuum luminosity is shown to be an excellent indicator of intrinsic AGN luminosity, scaling closely with the hard X-ray luminosity, log νL ν (7.8 μm)/L(X) = –0.31 ± 0.35, and independent of classification determined from silicate emission or absorption. Dust luminosity scales closely with BHM, log νL ν (7.8 μm) = (37.2 ± 0.5) + 0.87 log BHM for luminosity in erg s –1 and BHM in M ☉ . The 100 most luminous type 1 quasars as measured in νL ν (7.8 μm) are found by comparing Sloan Digital Sky Survey (SDSS) optically discovered quasars with photometry at 22 μm from the Wide-Field Infrared Survey Explorer (WISE), scaled to rest frame 7.8 μm using an empirical template determined from IRS spectra. The most luminous SDSS/WISE quasars have the same maximum infrared luminosities for all 1.5 IR = 10 14.4 L ☉ . Comparing with dust-obscured galaxies from Spitzer and WISE surveys, we find no evidence of hyperluminous obscured quasars whose maximum infrared luminosities exceed the maximum infrared luminosities of optically discovered quasars. Bolometric luminosities L bol estimated from rest-frame optical or ultraviolet luminosities are compared to L IR . For the local AGN, the median log L IR /L bol = –0.35, consistent with a covering factor of 45% for the absorbing dust clouds. For the SDSS/WISE quasars, the median log L IR /L bol = 0.1, with extremes indicating that ultraviolet-derived L bol can be seriously underestimated even for type 1

  11. Nuclear mitochondrial DNA activates replication in Saccharomyces cerevisiae.

    Directory of Open Access Journals (Sweden)

    Laurent Chatre

    Full Text Available The nuclear genome of eukaryotes is colonized by DNA fragments of mitochondrial origin, called NUMTs. These insertions have been associated with a variety of germ-line diseases in humans. The significance of this uptake of potentially dangerous sequences into the nuclear genome is unclear. Here we provide functional evidence that sequences of mitochondrial origin promote nuclear DNA replication in Saccharomyces cerevisiae. We show that NUMTs are rich in key autonomously replicating sequence (ARS consensus motifs, whose mutation results in the reduction or loss of DNA replication activity. Furthermore, 2D-gel analysis of the mrc1 mutant exposed to hydroxyurea shows that several NUMTs function as late chromosomal origins. We also show that NUMTs located close to or within ARS provide key sequence elements for replication. Thus NUMTs can act as independent origins, when inserted in an appropriate genomic context or affect the efficiency of pre-existing origins. These findings show that migratory mitochondrial DNAs can impact on the replication of the nuclear region they are inserted in.

  12. NEA activities in 1991. 20. Annual report of the OECD Nuclear Energy Agency

    International Nuclear Information System (INIS)

    1992-01-01

    This annual report gives informations on OECD Nuclear Energy Agency activities in 1991. This report is divided into ten chapters: 1 Trends in nuclear power. 2 Nuclear development and the fuel cycle. 3 Nuclear safety and regulation. 4 Radiation protection. 5 Radioactive waste management and disposal. 6 Nuclear science: Reactor physics, nuclear data, NEA data bank. 7 Joint projects and coordinated research programs. 8 Legal affairs. 9 informations programs. 10 relations with non-member countries

  13. Water activities in Forsmark. Ecological field inventory and classification of biodiversity values and description of forest production land

    International Nuclear Information System (INIS)

    Hamren, Ulrika; Collinder, Per

    2010-12-01

    In 2009, the Swedish Nuclear Fuel and Waste Management Co (SKB) chose Forsmark in the Municipality of Oesthammar as site for the final repository for spent nuclear fuel. This report describes nature values and forestry areas in Forsmark, and provides part of the background material for description of consequences due to groundwater diversion during construction and operation of the repository. The report describes results of map studies and comprehensive field investigations, in terms of geographical delineations, descriptions of characteristics and classifications of nature values for groundwater dependent or groundwater favoured nature objects in Forsmark. The nature objects are located in an investigation area, which contains the area that according to numerical flow modelling could be affected by groundwater-table drawdown due to groundwater diversion

  14. The Report on Activities of the Nuclear Regulatory Authority of the Slovak Republic and on Safety of Nuclear Installations in the Slovak Republic in 2011

    International Nuclear Information System (INIS)

    2012-05-01

    A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (UJD SR) in 2011 is presented. These activities are reported under the headings: Foreword; (1) Legislative activities; (2) Regulatory Activities; (3) Nuclear safety of nuclear power plants; (4) Nuclear Materials in SR; (5) Nuclear materials and physical protection of nuclear materials; (6) Scope of powers of the office building; (7) Emergency planning and preparedness; (8) International activities; (9) Public communication; (10) Nuclear Regulatory Authority of the Slovak Republic; (11) UJD SR organization chart; The International Nuclear Event Scale (INES); (12) Abbreviations.

  15. Managing nuclear knowledge: IAEA activities and international coordination. Asian Network for Education in Nuclear Technology (ANENT)

    International Nuclear Information System (INIS)

    2007-07-01

    This booklet summarizes the main activities being carried out by the IAEA with regard to the Asian Network for Education in Nuclear Technology (ANENT) and other related activities including those completed during the period 2002-2005. It briefly describes the background information on the events leading to the formation of the ANENT; the terms of reference formulated at the second Coordination Committee meeting held in Vietnam, October 2005; and objectives, strategy and other institutional and managerial policies reaffirmed by the members. The attached CD-ROM contains nearly all of the background material in full text, including policy level papers, reports, presentations made by Member States, and meeting summaries

  16. A novel collaborative representation and SCAD based classification method for fibrosis and inflammatory activity analysis of chronic hepatitis C

    Science.gov (United States)

    Cai, Jiaxin; Chen, Tingting; Li, Yan; Zhu, Nenghui; Qiu, Xuan

    2018-03-01

    In order to analysis the fibrosis stage and inflammatory activity grade of chronic hepatitis C, a novel classification method based on collaborative representation (CR) with smoothly clipped absolute deviation penalty (SCAD) penalty term, called CR-SCAD classifier, is proposed for pattern recognition. After that, an auto-grading system based on CR-SCAD classifier is introduced for the prediction of fibrosis stage and inflammatory activity grade of chronic hepatitis C. The proposed method has been tested on 123 clinical cases of chronic hepatitis C based on serological indexes. Experimental results show that the performance of the proposed method outperforms the state-of-the-art baselines for the classification of fibrosis stage and inflammatory activity grade of chronic hepatitis C.

  17. Development of a new cause classification method considering plant ageing and human errors for adverse events which occurred in nuclear power plants and some results of its application

    International Nuclear Information System (INIS)

    Miyazaki, Takamasa

    2007-01-01

    The adverse events which occurred in nuclear power plants are analyzed to prevent similar events, and in the analysis of each event, the cause of the event is classified by a cause classification method. This paper shows a new cause classification method which is improved in several points as follows: (1) the whole causes are systematically classified into three major categories such as machine system, operation system and plant outside causes, (2) the causes of the operation system are classified into several management errors normally performed in a nuclear power plant, (3) the content of ageing is defined in detail for their further analysis, (4) human errors are divided and defined by the error stage, (5) human errors can be related to background factors, and so on. This new method is applied to the adverse events which occurred in domestic and overseas nuclear power plants in 2005. From these results, it is clarified that operation system errors account for about 60% of the whole causes, of which approximately 60% are maintenance errors, about 40% are worker's human errors, and that the prevention of maintenance errors, especially worker's human errors is crucial. (author)

  18. Current NDT activities at Cekmece Nuclear Research and Training Center

    International Nuclear Information System (INIS)

    Ekinci, S.

    2004-01-01

    Nondestructive testing (NDT) activities at Cekmece Nuclear Research and Training Center (CNAEM) has been initiated in the Industrial Application Department of the Center which was established in 1976 as the Radioisotope Applications Group for Industry. The Department started its first NDT activity with industrial radiography. The NDT activities have been developed by the support of various national (State Planning Organization (DPT)) and international (IAEA and UNDP) projects. Today, there are five basic NDT techniques (radiography, ultrasonic, magnetic particle, liquid penetrant and eddy current) used in the Industrial Application Department. The Department arranges routinely NDT qualification courses according to ISO 9712 and TS EN 473 standards for level 1 and 2 for Turkish Industry. It also carries out national DPT and IAEA Technical Co-operation projects and gives NDT services in the laboratory and in the field. Digital radiography and digital ultrasonic techniques are being used in advanced NDT applications. This paper describes the NDT activities of CNAEM. (author)

  19. Detection of nuclear material by photon activation inside cargo containers

    Science.gov (United States)

    Gmar, Mehdi; Berthoumieux, Eric; Boyer, Sébastien; Carrel, Frédérick; Doré, Diane; Giacri, Marie-Laure; Lainé, Frédéric; Poumarède, Bénédicte; Ridikas, Danas; Van Lauwe, Aymeric

    2006-05-01

    Photons with energies above 6 MeV can be used to detect small amounts of nuclear material inside large cargo containers. The method consists in using an intense beam of high-energy photons (bremsstrahlung radiation) in order to induce reactions of photofission on actinides. The measurement of delayed neutrons and delayed gammas emitted by fission products brings specific information on localization and quantification of the nuclear material. A simultaneous measurement of both of these delayed signals can overcome some important limitations due to matrix effects like heavy shielding and/or the presence of light elements as hydrogen. We have a long experience in the field of nuclear waste package characterization by photon interrogation and we have demonstrated that presently the detection limit can be less than one gram of actinide per ton of package. Recently we tried to extend our knowledge to assess the performance of this method for the detection of special nuclear materials in sea and air freights. This paper presents our first results based on experimental measurements carried out in the SAPHIR facility, which houses a linear electron accelerator with the energy range from 15 MeV to 30 MeV. Our experiments were also modeled using the full scale Monte Carlo techniques. In addition, and in a more general frame, due to the lack of consistent data on photonuclear reactions, we have been working on the development of a new photonuclear activation file (PAF), which includes cross sections for more than 600 isotopes including photofission fragment distributions and delayed neutron tables for actinides. Therefore, this work includes also some experimental results obtained at the ELSA electron accelerator, which is more adapted for precise basic nuclear data measurements.

  20. Employment in nuclear energy activities, 1977: a highlights report

    International Nuclear Information System (INIS)

    1979-05-01

    In spite of the uncertainties in the nuclear energy field, employment in nuclear activities increased by nearly 15 percent between July 1975 and July 1977, according to the latest Bureau of Labor Statistics survey conducted for the Department of Energy. The survey covers employment in 21 industrial sectors comprised of Government-owned facilities operated by 57 private contractors and 874 privately-owned establishments, including 21 not-for-profit institutions. Not included in the survey are employees of Federal, state, and local governments; uranium mining; construction, except for reactors; medical institutions; or educational institutions not performing work connected with the Department of Energy. Informaion is presented by type of employer, Federal region, industrial sector, and size of establishment. 6 figures, 6 tables

  1. Intercomparison of 131I activity measurements in nuclear medicine

    International Nuclear Information System (INIS)

    Kim, G. Y.; Yang, H. K.; Lim, C. I.; Lee, H. K.; Jeong, H. K.

    2004-01-01

    Activity measurements in nuclear medicine using a dose calibrator have been performed for several decades and their reliability has varied. To minimise the radiation dose to patients with radionuclides, it is necessary to ensure that the sample administered is accurately assayed. Recognizing the importance of intercomparison in nuclear medicine and the need to make access to activity standards traceable to the international measurement system, the KFDA, as a national secondary standard dosimetry laboratory (SSDL), started an intercomparison program in 2002. This program was initiated by survey to all nuclear medicine centres regarding general information about their dose calibrators, radioisotopes etc. 71 nuclear medicine centres (79 dose calibrators) participated in the intercomparison program with 131 I isotope. To assess the accuracy of clinical measurements of the activity of 131 I solutions and to determine the reason for the disagreement, an intercomparison was conducted using 4 ml aliquots in 10 ml P6 vial with a total activity in the region of 10 -20 MBq. The reference time of decay for all solutions was 0:00 on 25 September 2002. The half-life used was 8.04 days. For the evaluation of solution in KFDA, a sealed, high pressure and re-entrant ionisation chamber, NPL-CRC radionuclide calibrators were used. The verification of our calibration quality was by means of a comparison with the Korea Primary Standard Laboratory (KRISS). The activity ratio of KFDA to KRISS for the 131 I solutions is 1.011. The difference between the value quoted by the clinic, A hospital and the value obtained by the KFDA, A KFDA , is expressed as a percent deviation, i.e. DEV(%) 100x(A hospital -A KFDA )/A KFDA . From the data obtained it was found that 61% of the calibrators showed a deviation within +/-5%; 23% had a deviation in the range 5% 131 I solution activity measurements, using dose calibrators in Koreas, and also to provide the participants with a traceable standard to

  2. Comparison of maintenance worker's human error events occurred at United States and domestic nuclear power plants. The proposal of the classification method with insufficient knowledge and experience and the classification result of its application

    International Nuclear Information System (INIS)

    Takagawa, Kenichi

    2008-01-01

    Human errors by maintenance workers in U.S. nuclear power plants were compared with those in Japanese nuclear power plants for the same period in order to identify the characteristics of such errors. As for U.S. events, cases which occurred during 2006 were selected from the Nuclear Information Database of the Institute to Nuclear Safety System while Japanese cases that occurred during the same period, were extracted from the Nuclear Information Archives (NUCIA) owned by JANTI. The most common cause of human errors was insufficient knowledge or experience' accounting for about 40% for U.S. cases and 50% or more of cases in Japan. To break down 'insufficient knowledge', we classified the contents of knowledge into five categories; method', 'nature', 'reason', 'scope' and 'goal', and classified the level of knowledge into four categories: 'known', 'comprehended', 'applied' and analytic'. By using this classification, the patterns of combination of each item of the content and the level of knowledge were compared. In the U.S. cases, errors due to 'insufficient knowledge of nature and insufficient knowledge of method' were prevalent while three other items', 'reason', scope' and 'goal' which involve work conditions among the contents of knowledge rarely occurred. In Japan, errors arising from 'nature not being comprehended' were rather prevalent while other cases were distributed evenly for all categories including the work conditions. For addressing insufficient knowledge or experience', we consider that the following approaches are valid: according to the knowledge level which is required for the work, the reflection of knowledge on the procedure or education materials, training and confirmation of understanding level, virtual practice and instruction of experience should be implemented. As for the knowledge on the work conditions, it is necessary to enter the work conditions in the procedure and education materials while conducting training or education. (author)

  3. Overview of the OECD Nuclear Energy Agency scientific activities on the nuclear fuel cycle - 5301

    International Nuclear Information System (INIS)

    Cornet, S.; Chauvin, N.

    2015-01-01

    As part of its role in encouraging international collaboration, the OECD Nuclear Energy Agency is coordinating a series of projects related to the Nuclear Fuel Cycle. The Nuclear Science Committee (NSC) Working Party on Scientific Issues of the Nuclear Fuel Cycle (WPFC) comprises five different expert groups covering scientific aspects of the fuel cycle from front to back-end. Ongoing projects include fuel cycle scenarios, fuels, materials, physics and chemical separations. Members of the expert groups cooperate to share recent research advancements at an international level and help identify gaps and needs in the field. Current activities focus on current and advanced nuclear systems in particular the challenges associated with the adoption of new materials and fuels such as for example cladding materials, fuels containing minor actinides, or the use of liquid metal as coolants. The Expert Group on Innovative Fuels has recently prepared a report on MA bearing fuels looking at different type of fuels and examining the technical issues associated with their fabrication, characterization, irradiation performance, and design and safety criteria. Experts of the group on Heavy Liquid Metal (HLM) technologies are compiling and editing the second version of the LBE (Lead Bismuth Eutectic) Handbook to include new experimental data. The Expert Group on Advanced Fuel Cycle Scenarios has undertaken a study to evaluate the effects of uncertainties of input parameters on the outcomes of fuel scenario studies to provide guidance on which uncertainties are more significant. At the back-end of the fuel cycle, separation technologies (aqueous and pyrochemical) are being assessed by the Expert Group on Fuel recycling Chemistry. (authors)

  4. American alliances and nuclear non-proliferation. The end of nuclear weapon activities of US allies

    International Nuclear Information System (INIS)

    Schneider, Jonas

    2016-01-01

    Jonas Schneider tackles a question that is of great interest both to scholars of nuclear proliferation and to practitioners of nonproliferation diplomacy: Why do some political leaders of U.S. allies agree to abandon their nation's nuclear weapons activities, while others - who are often members of the same allied government and sometimes even of the same political party - steadfastly reject such a course reversal? Our existing stock of theories does not fare well in accounting for this important variation in leaders' attitudes. To solve this puzzle, Schneider develops an innovative theory that draws on the individual status conceptions of allied political leaders. Subsequently, the author undertakes to test his theory using four thoroughly researched case studies, and he derives important lessons for international nonproliferation diplomacy toward the Middle East and Northeast Asia.

  5. NEA activities in 1992. 21. Annual report of the OECD Nuclear Energy Agency

    International Nuclear Information System (INIS)

    1993-01-01

    This annual report gives informations on OECD Nuclear Energy Agency activities in 1992. This report is divided into ten chapters: 1 Trends in nuclear power. 2 Nuclear development and the fuel cycle. 3 Reactor safety and regulation. 4 Radiation protection. 5 Radioactive waste management. 6 Nuclear science. 7 Joint projects. 8 Legal affairs. 9 Informations programs. 10 Relations with non-member countries

  6. Nuclear activation analysis work at Analytical Chemistry Division: an overview

    International Nuclear Information System (INIS)

    Verma, R.; Swain, K.K.; Remya Devi, P.S.; Dalvi, Aditi A.; Ajith, Nicy; Ghosh, M.; Chowdhury, D.P.; Datta, J.; Dasgupta, S.

    2016-04-01

    Nuclear activation analysis using neutron and charged particles is used routinely for analysis and research at Analytical Chemistry Division (ACD), Bhabha Atomic Research Centre (BARC). Neutron activation analysis at ACD, BARC, Mumbai, India has been pursued since late fifties using Apsara, CIRUS, Dhruva and Critical facility Research reactors, 239 Pu-Be neutron source and neutron generator. Instrumental, Radiochemical, Chemical and Derivative neutron activation analysis approaches are adopted depending on the analyte and the matrix. Large sample neutron activation analysis as well as k 0 -based internal monostandard neutron activation analysis is also used. Charged particle activation analysis at ACD, Variable Energy Cyclotron Centre (VECC), Kolkata started in late eighties and is being used for industrial applications and research. Proton, alpha, deuteron and heavy ion beams from 224 cm room temperature Variable Energy Cyclotron are used for determination of trace elements, measurement of excitation function, thin layer activation and preparation of endohedral fullerenes encapsulated with radioactive isotopes. Analytical Chemistry Division regularly participates in Inter and Intra laboratory comparison exercises conducted by various organizations including International Atomic Energy Agency (IAEA) and the results invariably include values obtained by neutron activation analysis. (author)

  7. Classification Accuracy of a Wearable Activity Tracker for Assessing Sedentary Behavior and Physical Activity in 3–5-Year-Old Children

    Directory of Open Access Journals (Sweden)

    Wonwoo Byun

    2018-03-01

    Full Text Available This study examined the accuracy of the Fitbit activity tracker (FF for quantifying sedentary behavior (SB and varying intensities of physical activity (PA in 3–5-year-old children. Twenty-eight healthy preschool-aged children (Girls: 46%, Mean age: 4.8 ± 1.0 years wore the FF and were directly observed while performing a set of various unstructured and structured free-living activities from sedentary to vigorous intensity. The classification accuracy of the FF for measuring SB, light PA (LPA, moderate-to-vigorous PA (MVPA, and total PA (TPA was examined calculating Pearson correlation coefficients (r, mean absolute percent error (MAPE, Cohen’s kappa (k, sensitivity (Se, specificity (Sp, and area under the receiver operating curve (ROC-AUC. The classification accuracies of the FF (ROC-AUC were 0.92, 0.63, 0.77 and 0.92 for SB, LPA, MVPA and TPA, respectively. Similarly, values of kappa, Se, Sp and percentage of correct classification were consistently high for SB and TPA, but low for LPA and MVPA. The FF demonstrated excellent classification accuracy for assessing SB and TPA, but lower accuracy for classifying LPA and MVPA. Our findings suggest that the FF should be considered as a valid instrument for assessing time spent sedentary and overall physical activity in preschool-aged children.

  8. ACTIVE LEARNING TO OVERCOME SAMPLE SELECTION BIAS: APPLICATION TO PHOTOMETRIC VARIABLE STAR CLASSIFICATION

    Energy Technology Data Exchange (ETDEWEB)

    Richards, Joseph W.; Starr, Dan L.; Miller, Adam A.; Bloom, Joshua S.; Butler, Nathaniel R.; Berian James, J. [Astronomy Department, University of California, Berkeley, CA 94720-7450 (United States); Brink, Henrik [Dark Cosmology Centre, Juliane Maries Vej 30, 2100 Copenhagen O (Denmark); Long, James P.; Rice, John, E-mail: jwrichar@stat.berkeley.edu [Statistics Department, University of California, Berkeley, CA 94720-7450 (United States)

    2012-01-10

    Despite the great promise of machine-learning algorithms to classify and predict astrophysical parameters for the vast numbers of astrophysical sources and transients observed in large-scale surveys, the peculiarities of the training data often manifest as strongly biased predictions on the data of interest. Typically, training sets are derived from historical surveys of brighter, more nearby objects than those from more extensive, deeper surveys (testing data). This sample selection bias can cause catastrophic errors in predictions on the testing data because (1) standard assumptions for machine-learned model selection procedures break down and (2) dense regions of testing space might be completely devoid of training data. We explore possible remedies to sample selection bias, including importance weighting, co-training, and active learning (AL). We argue that AL-where the data whose inclusion in the training set would most improve predictions on the testing set are queried for manual follow-up-is an effective approach and is appropriate for many astronomical applications. For a variable star classification problem on a well-studied set of stars from Hipparcos and Optical Gravitational Lensing Experiment, AL is the optimal method in terms of error rate on the testing data, beating the off-the-shelf classifier by 3.4% and the other proposed methods by at least 3.0%. To aid with manual labeling of variable stars, we developed a Web interface which allows for easy light curve visualization and querying of external databases. Finally, we apply AL to classify variable stars in the All Sky Automated Survey, finding dramatic improvement in our agreement with the ASAS Catalog of Variable Stars, from 65.5% to 79.5%, and a significant increase in the classifier's average confidence for the testing set, from 14.6% to 42.9%, after a few AL iterations.

  9. ACTIVE LEARNING TO OVERCOME SAMPLE SELECTION BIAS: APPLICATION TO PHOTOMETRIC VARIABLE STAR CLASSIFICATION

    International Nuclear Information System (INIS)

    Richards, Joseph W.; Starr, Dan L.; Miller, Adam A.; Bloom, Joshua S.; Butler, Nathaniel R.; Berian James, J.; Brink, Henrik; Long, James P.; Rice, John

    2012-01-01

    Despite the great promise of machine-learning algorithms to classify and predict astrophysical parameters for the vast numbers of astrophysical sources and transients observed in large-scale surveys, the peculiarities of the training data often manifest as strongly biased predictions on the data of interest. Typically, training sets are derived from historical surveys of brighter, more nearby objects than those from more extensive, deeper surveys (testing data). This sample selection bias can cause catastrophic errors in predictions on the testing data because (1) standard assumptions for machine-learned model selection procedures break down and (2) dense regions of testing space might be completely devoid of training data. We explore possible remedies to sample selection bias, including importance weighting, co-training, and active learning (AL). We argue that AL—where the data whose inclusion in the training set would most improve predictions on the testing set are queried for manual follow-up—is an effective approach and is appropriate for many astronomical applications. For a variable star classification problem on a well-studied set of stars from Hipparcos and Optical Gravitational Lensing Experiment, AL is the optimal method in terms of error rate on the testing data, beating the off-the-shelf classifier by 3.4% and the other proposed methods by at least 3.0%. To aid with manual labeling of variable stars, we developed a Web interface which allows for easy light curve visualization and querying of external databases. Finally, we apply AL to classify variable stars in the All Sky Automated Survey, finding dramatic improvement in our agreement with the ASAS Catalog of Variable Stars, from 65.5% to 79.5%, and a significant increase in the classifier's average confidence for the testing set, from 14.6% to 42.9%, after a few AL iterations.

  10. Active Learning to Overcome Sample Selection Bias: Application to Photometric Variable Star Classification

    Science.gov (United States)

    Richards, Joseph W.; Starr, Dan L.; Brink, Henrik; Miller, Adam A.; Bloom, Joshua S.; Butler, Nathaniel R.; James, J. Berian; Long, James P.; Rice, John

    2012-01-01

    Despite the great promise of machine-learning algorithms to classify and predict astrophysical parameters for the vast numbers of astrophysical sources and transients observed in large-scale surveys, the peculiarities of the training data often manifest as strongly biased predictions on the data of interest. Typically, training sets are derived from historical surveys of brighter, more nearby objects than those from more extensive, deeper surveys (testing data). This sample selection bias can cause catastrophic errors in predictions on the testing data because (1) standard assumptions for machine-learned model selection procedures break down and (2) dense regions of testing space might be completely devoid of training data. We explore possible remedies to sample selection bias, including importance weighting, co-training, and active learning (AL). We argue that AL—where the data whose inclusion in the training set would most improve predictions on the testing set are queried for manual follow-up—is an effective approach and is appropriate for many astronomical applications. For a variable star classification problem on a well-studied set of stars from Hipparcos and Optical Gravitational Lensing Experiment, AL is the optimal method in terms of error rate on the testing data, beating the off-the-shelf classifier by 3.4% and the other proposed methods by at least 3.0%. To aid with manual labeling of variable stars, we developed a Web interface which allows for easy light curve visualization and querying of external databases. Finally, we apply AL to classify variable stars in the All Sky Automated Survey, finding dramatic improvement in our agreement with the ASAS Catalog of Variable Stars, from 65.5% to 79.5%, and a significant increase in the classifier's average confidence for the testing set, from 14.6% to 42.9%, after a few AL iterations.

  11. Transportation research activities in support of nuclear waste management programs

    International Nuclear Information System (INIS)

    Allen, G.C. Jr.; Cashwell, J.W.; Jefferson, R.M.

    1983-01-01

    Transportation Technology Center has been conducting a wide range of technical research activities to assure the ability to transport radioactive materials in a safe, reliable manner. These activities include tasks in basic, analysis methodology and system research areas. Recently, the requirements of defense waste shipments have served as a focal point for development tasks with the expectation that they would serve as a precursor for commercial activities. The passage of the Nuclear Waste Policy Act has placed additional responsibility on the Department of Energy for concerns involving the shipments of civilian materials. The development of additional research responsibilities is expected to proceed concurrently with the evolution of the transportation mission plan for civilian spent fuel and high-level wastes

  12. Transportation research activities in support of nuclear waste management programs

    International Nuclear Information System (INIS)

    Allen, G.C.; Luna, R.E.; Jefferson, R.M.; Wowak, W.E.

    1983-01-01

    The Transportation Technology Center has been conducting a wide range of technical and non-technical research activities to assure the ability to transport radioactive materials in a safe, reliable, and publicly acceptable manner. These activities include tasks in Information and Intergovernmental issues, Safety Assessment and Environmental Analysis and Technology Development. Until recently, the requirements of defense waste shipments have served as a focal point for development tasks with the expectation that they would serve as a precursor for commercial activities. The passage of the Nuclear Waste Policy Act has placed additional responsibility on DOE for concerns involving the shipments of civilian materials. The development of additional research responsibilities is expected to proceed concurrently with the evolution of the transportation mission plan for civilian spent fuel and high-level wastes

  13. Radioactivity and nuclear waste

    International Nuclear Information System (INIS)

    Saas, A.

    1996-01-01

    Radioactive wastes generated by nuclear activities must be reprocessed using specific treatments before packaging, storage and disposal. This digest paper gives first a classification of radioactive wastes according to their radionuclides content activity and half-life, and the amount of wastes from the different categories generated each year by the different industries. Then, the radiotoxicity of nuclear wastes is evaluated according to the reprocessing treatments used and to their environmental management (surface storage or burial). (J.S.)

  14. Technical Publications as Indicators for Nuclear Fuel Cycle Declarable Activities

    International Nuclear Information System (INIS)

    Schuler, R.; El Gebaly, A.; Feldman, Y.; Gagne, D.; Schot, P.-M.; Ferguson, M.

    2015-01-01

    The Department of Safeguards aims to provide credible assurances to the international community that States are fulfiling their safeguards obligations in that all nuclear material remains in peaceful use. It does so in part by developing and implementing methodologies for early detection of undeclared activities or misuse of nuclear material or technology, based on large and diverse sources of information. Analyzing scientific, technical and patent information allows analysts in the Department to understand the technology available to a State, to forecast possible technical developments, to map collaborative research activities within and across States, and compare that information with declarations received by the State for completeness and correctness. Furthermore, with regard to patent information, scientists or companies want to make sure their intellectual property is protected; accordingly, patents are frequently filed before the information is published elsewhere, making patent information also an early indicator of relevant activities. Dealing with such large information sources requires the use of an innovative methodology conducting analysis. The Department has recently begun to examine the efficacy of link analysis tools to help carry out its mission. Using the link analysis platform Palantir, the authors conducted several case studies with the aim of deriving sound analytical results from large amounts of technical information within a reasonable time frame. The authors used data sets of bibliographic references from the IAEA International Nuclear Information System (INIS),Web of Science, Science Direct and data on worldwide patents from the European Patent Office (EPO). Based on these case studies, the authors are developing methodologies for the efficient application of link analysis to scientific and technical information, thus strengthening the Department's information collection and analysis capabilities and the overall process of State

  15. Lead corrosion evaluation in high activity nuclear waste container (Argentina)

    International Nuclear Information System (INIS)

    Guasp, R.; Lanzani, L.; Bruzzoni, P.; Cufre, W.; Semino, C.J.

    2000-01-01

    This report describes a study of high activity nuclear waste canister corrosion in a deep geological disposal. In this canister design, the vitrified nuclear waste stainless steel container is shielded by a 100 mm thick lead wall. For mechanical resistance, the canister will also have a thin carbon steel external liner. Experimental and mathematical modeling studies are aimed to asses the corrosion kinetics of the carbon steel liner in first instance and then, once this liner has been corroded away, the corrosion kinetics of the main lead barrier. Being that oxygen reduction is the main cathodic reaction that supports the anodic oxidation of iron, a model is described predicting the rate of oxygen consumption in a sealed deep nuclear waste disposal vault as a result of the canister corrosion. Oxidation processes other than container corrosion, and that can account also for oxygen depletion, are not taken into consideration. Corrosion experimental studies on lead and its alloys in groundwater are also reported. These experiments are aimed to improve the corrosion resistance of commercial lead in groundwater. (author)

  16. Forty years of nuclear manpower development activities in JAERI

    International Nuclear Information System (INIS)

    1998-01-01

    The training institute which was founded in 1958 for training researchers and engineers in atomic energy field attained to 40 years in January, 1998. During this period, it has accomplished the main role of training atomic energy engineers in Japan, but meeting the needs of the age, international training has been held, and also internally, the seminars for general public were carried out. So far, more than 45,000 persons who have finished the training have taken active parts in various atomic energy fields in Japan and abroad. The change of the training institute from initial Radioisotope Training Institute and Nuclear Reactor Training Institute to present International Atomic Energy General Technical Center is briefed. As to the training in Japan, the training of radioisotope and radiation technicians is reported about the basic course, the special course and the designated short course. As to the training of atomic energy engineers, the courses related to nuclear reactor engineering, the special courses on health physics, radiation protection, nuclear fuel and radioactive waste management, and the development of training techniques are described. As to the training of general public, the lecture on disaster prevention and atomic energy experiment seminar are performed. International training and the technical interchange in Asia and Pacific regions are reported. (K.I.)

  17. The magnesium reference value in whole blood using nuclear activation

    International Nuclear Information System (INIS)

    Oliveira, Laura C.; Zamboni, Cibele B.

    2009-01-01

    The aim of the present study is to establish an indicative interval for reference value for Mg in whole blood, using the Absolute Neutron Activation Analysis Technique. The necessity of this measurement is related to the fact that the conventional clinical analysis for Mg quantification is performed using plasma, so there is no reference values established for Mg in whole blood for Brazilian population. Ours results provide information which can help in diagnosis of patients and permit to perform a discussion about the advantages and limitations of using this nuclear methodology in hematological examinations. (author)

  18. OECD Nuclear Energy Agency Activities Related to Fast Reactor Development

    International Nuclear Information System (INIS)

    Dujardin, Thierry; Gulliford, Jim

    2013-01-01

    • Despite impact of Fukushima, there remains a high level of interest in continued development of advanced nuclear systems and fuel cycles: – better use of natural resources; – minimisation of waste and reduction of constraints on deep geological repositories. • Ambitious R&D programmes on-going at national level in many countries, also through international projects: – expected to lead to development of advanced reactors and fuel cycle facilities. • OECD/NEA will continue to support member countries in field of fast reactor development and related advanced fuel cycles: – forum for exchange of information; – collaborative activities

  19. Irradiation can for the activation of materials in nuclear reactors

    International Nuclear Information System (INIS)

    Schneider, B.; Findeisen, A.; Katzmann, H.

    1985-01-01

    The invention is concerning with an irradiation can for the activation of materials in nuclear reactors in particular for materials with a high heat generation due to irradiation. A good heat transfer between the irradiated material and the irradiation can environment has been guaranteed by a special can design. The outside of the can consists of a tube or a tube bandle which has been formed as a water guide tube. One or more tubes containing the irradiated materials have been positioned at the inner areas of the irradiated can

  20. OECD Nuclear Energy Agency. 8. Activity Report. 1979

    International Nuclear Information System (INIS)

    1980-01-01

    This work is concerned with trends in nuclear power, the international impact of the Harrisburg accident radiation protection, radioactive waste management safety research for reactors, nuclear law, nuclear fuel cycle studies, technical cooperation and the NEA data bank

  1. R&D Activities in German Nuclear Sector

    International Nuclear Information System (INIS)

    Schwenk-Ferrero, A.

    2015-01-01

    Germany is phasing out its nuclear energy use. The seven oldest Light Water Reactors (taken offline in 2011 for a safety review immediately following the Fukushima accident) and the Kruemmel Nuclear Power Plant (NPP) are already shut down; six others would go offline by 2021 at the latest and the three newest by 2022. Phasing out nuclear power must not be regarded as synonymous with “phasing out” nuclear expertise. Long after Germany has completed its NPP shutdown, such skills will remain essential for activities such as ensuring reactor safety, radiation protection, decommissioning, ultimate disposal of radioactive waste and crisis management, and for maintaining a critical outlook on international developments. The German Government underlined this fact when launching the 6th Energy Research Programme entitled “Research for an Environmentally Sound, Reliable and Affordable Energy Supply” in August 2011. The dispute on questions of nuclear waste management and disposal in Germany is not only framed by the political parties’ different perspectives and conflicts between the antinuclear movement and official politics, but is also characterised by the dissent among experts regarding fundamental questions of nuclear waste storage. Especially for high-level radioactive waste there are still debates about the possible repository type and site. In 2014 the study on “Partitioning and Transmutation of Nuclear Waste: benefits and Challenges in Research and Implementation” has been performed under the supervision of National Academy of Science and Engineering–acatech. Acatech recommended continuing the R&D activities on P&T in Germany within a wide European framework and examining the options for future participation of Germany in P&T oriented research in Europe in order to follow a European perspective with a possible benefit to German nuclear industry. German research should concentrate on the key areas: efficient partitioning and transmutation of

  2. Activation analysis and classification to source of samples from the Kimberley Reef Conglomerates

    International Nuclear Information System (INIS)

    Rasmussen, S.E.

    1977-01-01

    Three boreholes were drilled in the west, central, and eastern sections of the Durban Roodepoort Deep Mine, and twelve distinct strata were intersected. Twenty-two samples from the three borehole cores were analysed in triplicate for twenty-six elements, and, including standards, a total of 2000 determinations were made. Statistical analysis of the results obtained for twenty-four elements shows a successful back-classification of 98 per cent, whereas, if the conglomerates or quartzites are treated separately, 100 per cent success is obtained. When the present data are used for classification of the samples from the three cores analysed during the first phase of this project, 100 per cent accuracy of classification is achieved by use of only ten selected elements. The objects of this investigation have therefore been met successfully, and extension to further strata and to sampling beyond the confines of the mine is justified [af

  3. The Report on Activities of the Nuclear Regulatory Authority of the Slovak Republic and on Safety of Nuclear Installations in the Slovak Republic in 2010

    International Nuclear Information System (INIS)

    2010-05-01

    A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (UJD SR) in 2010 is presented. These activities are reported under the headings: Address of the Chairperson; (1) Legislative activities; (2) Issuance of authorizations, assessment, supervisory activities and enforcement; (3) Nuclear safety of nuclear power plants; (4) Nuclear materials and physical protection of nuclear materials; (5) Powers of the office building; (6) Emergency planning and preparedness; (7) International activities; (8) Public communication; (9) Nuclear Regulatory Authority of the Slovak Republic; (10) Appendix: UJD SR organization chart; The International Nuclear Event Scale (INES); Abbreviations.

  4. Report on activities of Nuclear Regulatory Authority of the Slovak Republic and safety of nuclear installations in the Slovak Republic in 2008. Annual report

    International Nuclear Information System (INIS)

    Zemanova, D.; Pirozekova, M.

    2009-04-01

    A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (UJD SR) in 2008 is presented. These activities are reported under the headings: (1) Foreword; (2) Legislation; (3) Issuance of authorizations, assessment, supervisory activities and enforcement; (4) Nuclear safety of nuclear installations in the Slovak Republic; (5) Safety of other nuclear installations; (6) Management of radioactive waste; (7) Nuclear materials and physical protection of nuclear materials; (8) Activity of Building Office; (9) Emergency planning and preparedness; (10) International activities; (11) Public communication; (11) Nuclear Regulatory Authority of the Slovak Republic; (12) UJD SR organization chart; (13) Abbreviations

  5. ENEA activities on seismic isolation of nuclear and non-nuclear structures

    International Nuclear Information System (INIS)

    Martelli, A.; Masoni, P.; Forni, M.; Indirli, M.; Spadoni, B.; Di Pasquale, G.; Lucarelli, V.; Sano, T.; Bonacina, G.; Castoldi, A.

    1989-01-01

    Work on seismic isolation of nuclear and non-nuclear structures was started by ENEA in cooperation with ISMES in 1988. The first activity consisted of a proposal for guidelines for seismically isolated nuclear plants using high-damping, steel-laminated elastomer bearings. This is being performed in the framework of an agreement with General Electric Company. Furthermore, research and development work has been defined and recently initiated to support development of the seismic isolation guidelines as well as that of qualification procedures for seismic isolation systems in general. The present R and D work includes static and dynamic experiments on single bearings, shake table tests with multi-axial simultaneous excitations on reduced-scale mockups of isolated structures supported by multiple bearings, and dynamic tests on large-scale isolated structures with on-site test techniques. It also includes the development and validation of finite-element nonlinear models of the single bearings, as well as those of simplified design tools for the analysis of the isolated structures dynamic behavior. Extension of this work is foreseen in a wider national frame

  6. Active-passive data fusion algorithms for seafloor imaging and classification from CZMIL data

    Science.gov (United States)

    Park, Joong Yong; Ramnath, Vinod; Feygels, Viktor; Kim, Minsu; Mathur, Abhinav; Aitken, Jennifer; Tuell, Grady

    2010-04-01

    CZMIL will simultaneously acquire lidar and passive spectral data. These data will be fused to produce enhanced seafloor reflectance images from each sensor, and combined at a higher level to achieve seafloor classification. In the DPS software, the lidar data will first be processed to solve for depth, attenuation, and reflectance. The depth measurements will then be used to constrain the spectral optimization of the passive spectral data, and the resulting water column estimates will be used recursively to improve the estimates of seafloor reflectance from the lidar. Finally, the resulting seafloor reflectance cube will be combined with texture metrics estimated from the seafloor topography to produce classifications of the seafloor.

  7. Artificial neural networks for classification in metabolomic studies of whole cells using 1H nuclear magnetic resonance.

    LENUS (Irish Health Repository)

    Brougham, D F

    2011-01-01

    We report the successful classification, by artificial neural networks (ANNs), of (1)H NMR spectroscopic data recorded on whole-cell culture samples of four different lung carcinoma cell lines, which display different drug resistance patterns. The robustness of the approach was demonstrated by its ability to classify the cell line correctly in 100% of cases, despite the demonstrated presence of operator-induced sources of variation, and irrespective of which spectra are used for training and for validation. The study demonstrates the potential of ANN for lung carcinoma classification in realistic situations.

  8. Low activation material design methodology for reduction of radio-active wastes of nuclear power plant

    International Nuclear Information System (INIS)

    Hasegawa, A.; Satou, M.; Nogami, S.; Kakinuma, N.; Kinno, M.; Hayashi, K.

    2007-01-01

    Most of the concrete shielding walls and pipes around a reactor pressure vessel of a light water reactor become low level radioactive waste at decommission phase because they contain radioactive nuclides by thermal-neutron irradiation during its operation. The radioactivity of some low level radioactive wastes is close to the clearance level. It is very desirable in terms of life cycle cost reduction that the radioactivity of those low level radioactive wastes is decreased below clearance level. In case of light water reactors, however, methodology of low activation design of a nuclear plant has not been established yet because the reactor is a large-scale facility and has various structural materials. The Objectives of this work are to develop low activation material design methodology and material fabrication for reduction of radio-active wastes of nuclear power plant such as reinforced concrete. To realize fabrication of reduced radioactive concrete, it is necessary to develop (1) the database of the chemical composition of raw materials to select low activation materials, (2) the tool for calculation of the neutron flux and the spectrum distribution of nuclear plants to evaluate radioactivity of reactor components, (3) optimization of material process conditions to produce the low activation cement and the low activation steels. Results of the data base development, calculation tools and trial production of low activation cements will be presented. (authors)

  9. Use of self-organizing maps for classification of defects in the tubes from the steam generator of nuclear power plants

    International Nuclear Information System (INIS)

    Mesquita, Roberto Navarro de

    2002-01-01

    This thesis obtains a new classification method for different steam generator tube defects in nuclear power plants using Eddy Current Test signals. The method uses self-organizing maps to compare different signal characteristics efficiency to identify and classify these defects. A multiple inference system is proposed which composes the different extracted characteristic trained maps classification to infer the final defect type. The feature extraction methods used are the Wavelet zero-crossings representation, the linear predictive coding (LPC), and other basic signal representations on time like module and phase. Many characteristic vectors are obtained with combinations of these extracted characteristics. These vectors are tested to classify the defects and the best ones are applied to the multiple inference system. A systematic study of pre-processing, calibration and analysis methods for the steam generator tube defect signals in nuclear power plants is done. The method efficiency is demonstrated and characteristic maps with the main prototypes are obtained for each steam generator tube defect type. (author)

  10. Mixed-waste minimization activities in the nuclear weapons complex

    International Nuclear Information System (INIS)

    Marchetti, J.A.; Suffern, J.S.

    1991-01-01

    Over the past 40 years, the US Department of Energy (DOE) and the nuclear weapons complex have successfully executed their mission of providing the country with a strong nuclear deterrent. Now, however, they must attain another mission at the same time: to eliminate or greatly reduce the environmental, safety, and health problems in the complex. Mixed-waste minimization activities have taken place in 11 of the complex production plants and laboratories: the Pinellas plant, the Mount plant, the Kansas City plant, the Y-12 plant, the Rocky Flats plant, the Savannah River Site (SRS), the Savannah River Site (SRS), the Pantex plant, the Nevada Test Site, Sandia National Laboratories, Los Alamos National Laboratory, and the Lawrence Livermore National Laboratory. The mixed-waste minimization opportunities that have been implemented to date by the production facilities are different from those that have been implemented by the laboratories. Areas of opportunity at the plants involve the following activities: (1) process design or improvement; (2) substitution of materials; (3) waste segregation; (4) recycling; and (5) administrative controls

  11. Evaluation of hazards from industrial activities near nuclear power plants

    International Nuclear Information System (INIS)

    Lannoy, A.; Gobert, T.

    1980-01-01

    Among the potential hazards which could arise from industrial activity near nuclear power plants, fires and explosions of dangerous products are of particular concern. Indeed, thermal radiation from an adjacent fire could endanger the resistance of a plant's structures. Likewise, an accident explosion would induce an overpressure wave which could affect buildings' integrity. This paper presents the methodology developed by Electricite de France to evaluate the consequences of accidents affecting: - Industrial facilities: refineries, chemical and petrochemical plants, storage areas, pipelines of gaseous, liquid and liquefied materials. - Transportation routes (roads, railways, inland waterways) used to carry dangerous substances (solid explosives, liquid, gaseous or liquefied hydrocarbons). Probabilistic methods have been developed by analysis of actual accident statistics (e.g. risks induced by transportation routes) and realistic and representative accident scenarios have been set up. Five sequences have been identified: Formation of a fluid jet at a breach. Evaporation and possible formation of a liquid layer. Atmospheric dispersion and drift of a gaseous cloud. Heat radiation from fire. Unconfined explosion of a gaseous cloud. This paper gives an overview of the methods and the main assumptions used to deal with each sequence. Those methods, presently applied by Electricite de France, provide a coherent and realistic approach for the evaluation of the risks at nuclear power plants induced by industrial activity. (orig.)

  12. Activities promoting the achievement of high nuclear fuel performance indicators

    International Nuclear Information System (INIS)

    Naev, I.; Tomov, A.

    2011-01-01

    This presentation begins with brief general information about Kozloduy Nuclear Power Plant and organization activities about fresh fuel delivery assurance. The TVSA implementation, fuel cycle, fresh fuel standard entrance inspection and additional fresh fuel inspection are briefly described. Activities concerning core refueling, radiochemistry analysis, control rods drop time, measurement of the distance between the reactor flange and PTU flange, specific items for core unloading and a comparison between the two variants for operations scope with full and without full core unloading are presented. The core unloading - results and next steps, final core design (Unit 6, 2010), preparing for core loading (Unit 6, 2010) , core loading (Unit 6, 2010), after loading core inspection (Unit 6, 2010), core inspection, reactor assembling (Unit 6, 2010), fuel control during reactor startup, fuel control during operation period and fuel assembly data base are also discussed

  13. Analysis of the environmental impact generated by nuclear activities

    International Nuclear Information System (INIS)

    Lazar, Roxana Elena; Dumitrescu, Maria

    2000-01-01

    Assessment of environmental impact represents one of the most formalized examples of interdisciplinary approach. After more then a century from the introduction of the concept of environmental impact assessment, this undertaking still represents an amalgamation of mini-studies based on pre-determined approaches rather than a genuine integrated document. This work presents the most important and adequate techniques of analysis of environmental impact generated by nuclear activities starting from identification of the events causing negative effects upon environment (by using checking list, the matrices and the cause-effect diagram) and radiation dose determination up to the decision making process. To preserve environment integrity the human factor should be re-evaluated as well as its active participation in formation and settling of an real environmental culture

  14. Climate classification for the simulation of thermally activated building systems (TABS)

    DEFF Research Database (Denmark)

    Behrendt, Benjamin; Christensen, Jørgen Erik

    2013-01-01

    alternative (sustainable) energy sources that would otherwise be insufficient. The design of TABS is however challenging and most often requires a complete simulation of the building. The standard ISO 11855-4 (2011) suggests a simplified sizing method for TABS. The results however omit condensation risk...... entirely. The proposed climate classification should fill this gap by providing the missing data in a simple manner....

  15. Overview of the Italian activities in the field of life management of nuclear power plants

    International Nuclear Information System (INIS)

    Pini, A.

    1994-01-01

    Overview of the Italian activities in the field of life management of nuclear power plants is presented, including the following issues: nuclear energy scenario in Italy, study of reactor pressure vessel, piping and containment integrity, seismic risk analysis

  16. THE NUCLEAR ACTIVITIES OF NEARBY S0 GALAXIES

    Energy Technology Data Exchange (ETDEWEB)

    Xiao, Meng-Yuan; Gu, Qiu-Sheng; Chen, Yan-Mei; Zhou, Luwenjia, E-mail: qsgu@nju.edu.cn [School of Astronomy and Space Science, Nanjing University, Nanjing 210093, P. R. China (China)

    2016-11-01

    We present a study of nuclear activities in nearby S0 galaxies. After cross-matching the Sloan Digital Sky Survey Data Release 7 with the Third Reference Catalog of Bright Galaxies (RC3) and visually checking the SDSS images, we derive a sample of 583 S0 galaxies with the central spectrophotometric information. In order to separate nebular emission lines from the underlying stellar contribution, we fit the stellar population model to the SDSS spectra of these S0 galaxies. According to the BPT diagram, we find that 8% of S0 galaxies show central star-forming activity, while the fractions of Seyfert, Composite, and low-ionization nuclear emission-line regions (LINERs) are 2%, 8%, and 21.4%, respectively. We also find that star-forming S0s have the lowest stellar masses, over one magnitude lower than the others, and that the active S0s are mainly located in the sparse environment, while the normal S0s are located in the dense environment, which might suggest that the environment plays an important role in quenching star formation and/or AGN activity in S0 galaxies. By performing bulge-disk decomposition of 45 star-forming S0s in g - and r -bands with the 2D fitting software Galfit, as well as exploiting the catalog of 2D photometric decompositions of Meert et al., we find that the bulges of approximately one-third of star-forming S0 galaxies (16/45) are bluer than their disks, while for other types of S0s the bulge and disk components show similar color distributions. Besides, the Sérsic index of most star-forming S0s bulges is less than two, while for normal S0s, it is between two and six.

  17. IAEA activities in nuclear medicine and related medical applications of nuclear techniques

    International Nuclear Information System (INIS)

    Dudley, R.A.

    1986-01-01

    One of the objectives of the International Atomic Energy Agency, as specified in its Statute, is to ''enlarge the contribution of atomic energy to peace, health and prosperity throughout the world.'' Its programmes in human health include both the exploitation and measurement of radiation fields (radiotherapy and dosimetry) and the use of radionuclides in an investigative or tracer role (the primary subject of this Symposium). The Agency carries out its programmes by means of several mechanisms. The technical co-operation programme, responding to requests for support from governments of Member States, is the dominant mechanism. Through it, experts may be made available to introduce new skills to a laboratory; essential equipment may be provided; and training may be organized in various forms. A second mechanism is the research contract programme, providing financial support to individual laboratories for particular research projects. A third mechanism is information exchange: scientific meetings, publications and the nuclear abstracts service of the International Nuclear Information System (INIS). In the field covered by this Symposium, the technical content of the projects supported by the Agency using these mechanisms may be classed in several categories. One domain that penetrates all others is instrumentation: selection, quality control and maintenance to prevent or correct breakdowns. Another category of activity, requiring the least sophisticated technology, is radioimmunoassay and related procedures. A third category involves the use of radionuclides in vivo, notably the classic applications of nuclear medicine in diagnosing the health status of individual patients, but including also investigation of the nature and aetiology of disease. A fourth category of project includes the study of the biological role of trace elements, especially by neutron activation analysis

  18. Pattern classification of brain activation during emotional processing in subclinical depression: psychosis proneness as potential confounding factor

    Directory of Open Access Journals (Sweden)

    Gemma Modinos

    2013-02-01

    Full Text Available We used Support Vector Machine (SVM to perform multivariate pattern classification based on brain activation during emotional processing in healthy participants with subclinical depressive symptoms. Six-hundred undergraduate students completed the Beck Depression Inventory II (BDI-II. Two groups were subsequently formed: (i subclinical (mild mood disturbance (n = 17 and (ii no mood disturbance (n = 17. Participants also completed a self-report questionnaire on subclinical psychotic symptoms, the Community Assessment of Psychic Experiences Questionnaire (CAPE positive subscale. The functional magnetic resonance imaging (fMRI paradigm entailed passive viewing of negative emotional and neutral scenes. The pattern of brain activity during emotional processing allowed correct group classification with an overall accuracy of 77% (p = 0.002, within a network of regions including the amygdala, insula, anterior cingulate cortex and medial prefrontal cortex. However, further analysis suggested that the classification accuracy could also be explained by subclinical psychotic symptom scores (correlation with SVM weights r = 0.459, p = 0.006. Psychosis proneness may thus be a confounding factor for neuroimaging studies in subclinical depression.

  19. Pattern classification of brain activation during emotional processing in subclinical depression: psychosis proneness as potential confounding factor.

    Science.gov (United States)

    Modinos, Gemma; Mechelli, Andrea; Pettersson-Yeo, William; Allen, Paul; McGuire, Philip; Aleman, Andre

    2013-01-01

    We used Support Vector Machine (SVM) to perform multivariate pattern classification based on brain activation during emotional processing in healthy participants with subclinical depressive symptoms. Six-hundred undergraduate students completed the Beck Depression Inventory II (BDI-II). Two groups were subsequently formed: (i) subclinical (mild) mood disturbance (n = 17) and (ii) no mood disturbance (n = 17). Participants also completed a self-report questionnaire on subclinical psychotic symptoms, the Community Assessment of Psychic Experiences Questionnaire (CAPE) positive subscale. The functional magnetic resonance imaging (fMRI) paradigm entailed passive viewing of negative emotional and neutral scenes. The pattern of brain activity during emotional processing allowed correct group classification with an overall accuracy of 77% (p = 0.002), within a network of regions including the amygdala, insula, anterior cingulate cortex and medial prefrontal cortex. However, further analysis suggested that the classification accuracy could also be explained by subclinical psychotic symptom scores (correlation with SVM weights r = 0.459, p = 0.006). Psychosis proneness may thus be a confounding factor for neuroimaging studies in subclinical depression.

  20. Report on activities of Nuclear Regulatory Authority of the Slovak Republic and safety of nuclear installations in the Slovak Republic in 2009. Annual report

    International Nuclear Information System (INIS)

    2010-04-01

    A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (UJD SR) in 2009 is presented. These activities are reported under the headings: (1) Foreword; (2) Legislation; (3) Issuance of authorizations, assessment, supervisory activities and enforcement; (4) Nuclear safety of nuclear installations in the Slovak Republic; (5) Safety of other nuclear installations; (6) Management of radioactive waste; (7) Nuclear materials and physical protection of nuclear materials; (8) Emergency planning and preparedness; (9) International activities; (10) Public communication; (11) Nuclear Regulatory Authority of the Slovak Republic; (12) UJD SR organization chart; (13) Abbreviations.