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Sample records for measuring system das

  1. DAS: A Data Management System for Instrument Tests and Operations

    Science.gov (United States)

    Frailis, M.; Sartor, S.; Zacchei, A.; Lodi, M.; Cirami, R.; Pasian, F.; Trifoglio, M.; Bulgarelli, A.; Gianotti, F.; Franceschi, E.; Nicastro, L.; Conforti, V.; Zoli, A.; Smart, R.; Morbidelli, R.; Dadina, M.

    2014-05-01

    The Data Access System (DAS) is a and data management software system, providing a reusable solution for the storage of data acquired both from telescopes and auxiliary data sources during the instrument development phases and operations. It is part of the Customizable Instrument WorkStation system (CIWS-FW), a framework for the storage, processing and quick-look at the data acquired from scientific instruments. The DAS provides a data access layer mainly targeted to software applications: quick-look displays, pre-processing pipelines and scientific workflows. It is logically organized in three main components: an intuitive and compact Data Definition Language (DAS DDL) in XML format, aimed for user-defined data types; an Application Programming Interface (DAS API), automatically adding classes and methods supporting the DDL data types, and providing an object-oriented query language; a data management component, which maps the metadata of the DDL data types in a relational Data Base Management System (DBMS), and stores the data in a shared (network) file system. With the DAS DDL, developers define the data model for a particular project, specifying for each data type the metadata attributes, the data format and layout (if applicable), and named references to related or aggregated data types. Together with the DDL user-defined data types, the DAS API acts as the only interface to store, query and retrieve the metadata and data in the DAS system, providing both an abstract interface and a data model specific one in C, C++ and Python. The mapping of metadata in the back-end database is automatic and supports several relational DBMSs, including MySQL, Oracle and PostgreSQL.

  2. DAS performance analysis

    International Nuclear Information System (INIS)

    Bates, G.; Bodine, S.; Carroll, T.; Keller, M.

    1984-02-01

    This report begins with an overview of the Data Acquisition System (DAS), which supports several of PPPL's experimental devices. Performance measurements which were taken on DAS and the tools used to make them are then described

  3. The data acquisition system (DAS) for the improved CERN SC

    CERN Document Server

    Beger, H; Fiebig, A; Schroot, H

    1975-01-01

    A digital data acquisition system (DAS) based on a minicomputer is described which registers the failure sequences in various equipment areas of the CERN synchrocyclotron (henceforward referred to as the SC). The avalanches of failure signals which occur from time to time are tapped from the alarm/security systems, time-resolved to 10 msec and recorded on a printer in order to aid SC failure diagnosis. The mechanisms of the DAS and its relation to the SC equipment are explained in some detail. All programs were constructed at assembler language level for speed and for ease of on-line program maintenance. The alarm sequences recorded have been of considerable help during the running in of the new radiofrequency system. Now that the new SC is operational, the DAS furnishes useful data from several equipment areas to the operators and engineers.

  4. Scania RBS brake system; Das Bremssystem EBS von Scania

    Energy Technology Data Exchange (ETDEWEB)

    Winterhagen, J.

    1996-09-01

    Scania claims to be the first producer of industrial vehicles to market an electronic braking system (EBS) combined with disc brakes for all axles. The new braking systems for long-distance trailers were presented for the first time at the IAA, Hanover, in September 1996. (orig.) [Deutsch] Scania ist nach eigenen Angaben der erste Lkw-Hersteller, der eine elektronisch geregelte Bremsanlage (EBS) in Kombination mit Scheibenbremsen an allen Achsen auf den Markt bringt. Der Oeffentlichkeit stellt Scania das neue Bremssystem fuer die Fernverkehrs-Zugmaschinen der Baureihe 4 zum ersten Mal auf der IAA in Hannover im September 1996 vor. (orig.)

  5. Development of an indicator system for the German action plan to global climate change (DAS); Entwicklung eines Indikatorensystems fuer die Deutsche Anpassungsstrategie an den Klimawandel (DAS)

    Energy Technology Data Exchange (ETDEWEB)

    Schoenthaler, Konstanze; Andrian-Werburg, Stefan von [Bosch und Partner GmbH, Muenchen (Germany); Nickel, Darla [Ecologic gGmbH Institut fuer Internationale und Europaeische Umweltpolitik, Berlin (Germany)

    2011-12-15

    On 17th December 2008 the German Federal Cabinet adopted the German Strategy for Adaptation to Climate Change (DAS: Deutsche Anpassungsstrategie) (BUNDESREGIERUNG 2008). The DAS has created the framework for adapting to the consequences of climate change in Germany. First and foremost, the DAS contributes its guidelines at Federal level, to provide guidance for agents at other levels. The Strategy lays the foundation for a medium-term process. In conjunction with the individual Federal States and other groups representing various sectors of society, the Strategy provides a step-by-step assessment of the risks of climate change. Furthermore, it states the potential requirements for action, and defines the appropriate goals and potential adaptation measures to be developed and implemented in the process. The Strategy is divided into 13 action fields and two cross-sectional fields (=14+15). (1) Human health (2) Building sector (3) Water regime, water management, coastal and marine protection (4) Soil (5) Biological diversity (6) Agriculture (7) Woodland and forestry (8) Fishery (9) Energy industry (conversion, transport and supply) (10) Financial services industry (11) Transport, transport infrastructure (12) Trade and industry (13) Tourism industry (14) Spatial, regional and physical development planning (15) Civil protection. In due course, the Federal Environment Agency (UBA) will design a comprehensive set of tools to support and implement the DAS. This will be made available for download from www.anpassung.net. An integral part of this will be the 'Tatenbank' (www.tatenbank.anpassung.net), the 'Klimalotse' (www.klimalotse.anpassung.net), FISKA (special information system 'Adaptation') and an Indicator System to aid adaptation. The latter is one of the key tasks identified for the DAS. As far as the Indicator System is concerned, it has been decided to prepare a Report on Indicators for the challenges facing Germany and the

  6. DAS, Uncoordinated Femto and Joint Scheduling Systems for In-Building Wireless Solutions

    DEFF Research Database (Denmark)

    Liu, Zhen; Sørensen, Troels Bundgaard; Wigard, Jeoren

    2011-01-01

    -data-rate services. Distributed antenna systems and Femto cells are cost-efficient techniques for this application. In this paper, their performance is evaluated in an LTE downlink context along with a proposed joint scheduling system, which maximizes the supported number of users under a QoS constraint....... The selection of the enterprise building model includes a general office building model described in the WINNER II project and a site-specific office building with large scale path-loss values retrieved from measurements. Results show superior performance of the Femto system compared to DAS in providing high...

  7. The Deaf Acculturation Scale (DAS): Development and Validation of a 58-Item Measure

    Science.gov (United States)

    Maxwell-McCaw, Deborah; Zea, Maria Cecilia

    2011-01-01

    This study involved the development and validation of the Deaf Acculturation Scale (DAS), a new measure of cultural identity for Deaf and hard-of-hearing (hh) populations. Data for this study were collected online and involved a nation-wide sample of 3,070 deaf/hh individuals. Results indicated strong internal reliabilities for all the subscales, and construct validity was established by demonstrating that the DAS could discriminate groups based on parental hearing status, school background, and use of self-labels. Construct validity was further demonstrated through factorial analyses, and findings resulted in a final 58-item measure. Directions for future research are discussed. PMID:21263041

  8. Incorporating Parallel Computing into the Goddard Earth Observing System Data Assimilation System (GEOS DAS)

    Science.gov (United States)

    Larson, Jay W.

    1998-01-01

    Atmospheric data assimilation is a method of combining actual observations with model forecasts to produce a more accurate description of the earth system than the observations or forecast alone can provide. The output of data assimilation, sometimes called the analysis, are regular, gridded datasets of observed and unobserved variables. Analysis plays a key role in numerical weather prediction and is becoming increasingly important for climate research. These applications, and the need for timely validation of scientific enhancements to the data assimilation system pose computational demands that are best met by distributed parallel software. The mission of the NASA Data Assimilation Office (DAO) is to provide datasets for climate research and to support NASA satellite and aircraft missions. The system used to create these datasets is the Goddard Earth Observing System Data Assimilation System (GEOS DAS). The core components of the the GEOS DAS are: the GEOS General Circulation Model (GCM), the Physical-space Statistical Analysis System (PSAS), the Observer, the on-line Quality Control (QC) system, the Coupler (which feeds analysis increments back to the GCM), and an I/O package for processing the large amounts of data the system produces (which will be described in another presentation in this session). The discussion will center on the following issues: the computational complexity for the whole GEOS DAS, assessment of the performance of the individual elements of GEOS DAS, and parallelization strategy for some of the components of the system.

  9. The Deaf Acculturation Scale (DAS): Development and Validation of a 58-Item Measure

    Science.gov (United States)

    Maxwell-McCaw, Deborah; Zea, Maria Cecilia

    2011-01-01

    This study involved the development and validation of the Deaf Acculturation Scale (DAS), a new measure of cultural identity for Deaf and hard-of-hearing (hh) populations. Data for this study were collected online and involved a nation-wide sample of 3,070 deaf/hh individuals. Results indicated strong internal reliabilities for all the subscales,…

  10. User Manual for the AZ-101 Data Acquisition System (AS-101 DAS)

    Energy Technology Data Exchange (ETDEWEB)

    BRAYTON, D.D.

    2000-02-17

    User manual for the TK AZ-101 Waste Retrieval System Data Acquisition System. The purpose of this document is to describe use of the AZ-101 Data Acquisition System (AZ-101 DAS). The AZ-101 DAS is provided to fulfill the requirements for data collection and monitoring as defined in Letters of Instruction (LOI) from Numatec Hanford Corporation (NHC) to Fluor Federal Services (FFS). For a complete description of the system, including design, please refer to the AZ-101 DAS System Description document, RPP-5572.

  11. User Manual for the AZ-101 Data Acquisition System (AS-101 DAS)

    International Nuclear Information System (INIS)

    BRAYTON, D.D.

    2000-01-01

    User manual for the TK AZ-101 Waste Retrieval System Data Acquisition System. The purpose of this document is to describe use of the AZ-101 Data Acquisition System (AZ-101 DAS). The AZ-101 DAS is provided to fulfill the requirements for data collection and monitoring as defined in Letters of Instruction (LOI) from Numatec Hanford Corporation (NHC) to Fluor Federal Services (FFS). For a complete description of the system, including design, please refer to the AZ-101 DAS System Description document, RPP-5572

  12. The beam diagnosis system for ELSA. Das Strahldiagnosesystem fuer ELSA

    Energy Technology Data Exchange (ETDEWEB)

    Schillo, M.

    1991-10-01

    A beam diagnostic system, which is based on capacitive beam-position monitors combined with fast electronics, has been developed for the Bonn Electron Stretcher Accelerator ELSA. The position signal of each monitor is digitized at an adjustable sampling rate and the most recent 8192 position and intensity values are buffered. This allows a wide range of different beam diagnostic measurements. The main purpose is the closed-orbit correction, which can be carried out on various time scales. To optimize the duty factor of the extracted beam, the system can also be used as a fast relative intensity monitor resolving the intensity distribution of the bunches or of the injected beam. It is designed to support betatron tune and phase measurements with very high accuracy, offering the choice to select any of the beam position monitors. This enables the measuring of many optical parameters. Furthermore any pair of suitable monitors can be used for experimental particle tracking or phase space measurements. (orig.).

  13. I/O Parallelization for the Goddard Earth Observing System Data Assimilation System (GEOS DAS)

    Science.gov (United States)

    Lucchesi, Rob; Sawyer, W.; Takacs, L. L.; Lyster, P.; Zero, J.

    1998-01-01

    The National Aeronautics and Space Administration (NASA) Data Assimilation Office (DAO) at the Goddard Space Flight Center (GSFC) has developed the GEOS DAS, a data assimilation system that provides production support for NASA missions and will support NASA's Earth Observing System (EOS) in the coming years. The GEOS DAS will be used to provide background fields of meteorological quantities to EOS satellite instrument teams for use in their data algorithms as well as providing assimilated data sets for climate studies on decadal time scales. The DAO has been involved in prototyping parallel implementations of the GEOS DAS for a number of years and is now embarking on an effort to convert the production version from shared-memory parallelism to distributed-memory parallelism using the portable Message-Passing Interface (MPI). The GEOS DAS consists of two main components, an atmospheric General Circulation Model (GCM) and a Physical-space Statistical Analysis System (PSAS). The GCM operates on data that are stored on a regular grid while PSAS works with observational data that are scattered irregularly throughout the atmosphere. As a result, the two components have different data decompositions. The GCM is decomposed horizontally as a checkerboard with all vertical levels of each box existing on the same processing element(PE). The dynamical core of the GCM can also operate on a rotated grid, which requires communication-intensive grid transformations during GCM integration. PSAS groups observations on PEs in a more irregular and dynamic fashion.

  14. Ocean Color Measurements from Landsat-8 OLI using SeaDAS

    Science.gov (United States)

    Franz, Bryan Alden; Bailey, Sean W.; Kuring, Norman; Werdell, P. Jeremy

    2014-01-01

    The Operational Land Imager (OLI) is a multi-spectral radiometer hosted on the recently launched Landsat-8 satellite. OLI includes a suite of relatively narrow spectral bands at 30-meter spatial resolution in the visible to shortwave infrared that make it a potential tool for ocean color radiometry: measurement of the reflected spectral radiance upwelling from beneath the ocean surface that carries information on the biogeochemical constituents of the upper ocean euphotic zone. To evaluate the potential of OLI to measure ocean color, processing support was implemented in SeaDAS, which is an open-source software package distributed by NASA for processing, analysis, and display of ocean remote sensing measurements from a variety of satellite-based multi-spectral radiometers. Here we describe the implementation of OLI processing capabilities within SeaDAS, including support for various methods of atmospheric correction to remove the effects of atmospheric scattering and absorption and retrieve the spectral remote-sensing reflectance (Rrs; sr exp 1). The quality of the retrieved Rrs imagery will be assessed, as will the derived water column constituents such as the concentration of the phytoplankton pigment chlorophyll a.

  15. The SeaDAS Processing and Analysis System: SeaWiFS, MODIS, and Beyond

    Science.gov (United States)

    MacDonald, M. D.; Ruebens, M.; Wang, L.; Franz, B. A.

    2005-12-01

    The SeaWiFS Data Analysis System (SeaDAS) is a comprehensive software package for the processing, display, and analysis of ocean data from a variety of satellite sensors. Continuous development and user support by programmers and scientists for more than a decade has helped to make SeaDAS the most widely used software package in the world for ocean color applications, with a growing base of users from the land and sea surface temperature community. Full processing support for past (CZCS, OCTS, MOS) and present (SeaWiFS, MODIS) sensors, and anticipated support for future missions such as NPP/VIIRS, enables end users to reproduce the standard ocean archive product suite distributed by NASA's Ocean Biology Processing Group (OBPG), as well as a variety of evaluation and intermediate ocean, land, and atmospheric products. Availability of the processing algorithm source codes and a software build environment also provide users with the tools to implement custom algorithms. Recent SeaDAS enhancements include synchronization of MODIS processing with the latest code and calibration updates from the MODIS Calibration Support Team (MCST), support for all levels of MODIS processing including Direct Broadcast, a port to the Macintosh OS X operating system, release of the display/analysis-only SeaDAS-Lite, and an extremely active web-based user support forum.

  16. CLAES Product Improvement by Use of the GSFC Data Assimilation System (DAS)

    Science.gov (United States)

    Kumer, J. B.; Douglass, Anne (Technical Monitor)

    2000-01-01

    This report presents the Cryogenic Limb Array Etalon Spectrometer (CLAES) product improvement by use of the GSFC Data Assimilation System (DAS). The first task is to plug line of sight gradients derived from the CTM for 2/20/92 into the forward model of our retrieval software (RSW) in order to assess the impact on the retrieved quantities. The reporting period covers 12 May 2000 - 21 December 2000.

  17. Measuring primary teachers' attitudes toward teaching science: development of the dimensions of attitude toward science (DAS) instrument

    NARCIS (Netherlands)

    van Aalderen-Smeets, Sandra; Walma van der Molen, Julie Henriëtte

    2013-01-01

    In this article, we present a valid and reliable instrument which measures the attitude of in-service and pre-service primary teachers toward teaching science, called the Dimensions of Attitude Toward Science (DAS) Instrument. Attention to the attitudes of primary teachers toward teaching science is

  18. Measuring Primary Teachers' Attitudes toward Teaching Science: Development of the Dimensions of Attitude toward Science (DAS) Instrument

    Science.gov (United States)

    van Aalderen-Smeets, Sandra; Walma van der Molen, Juliette

    2013-01-01

    In this article, we present a valid and reliable instrument which measures the attitude of in-service and pre-service primary teachers toward teaching science, called the Dimensions of Attitude Toward Science (DAS) Instrument. Attention to the attitudes of primary teachers toward teaching science is of fundamental importance to the…

  19. Implementing Data Acquisition Systems DAS1 and DAS2 at Cernavoda Full-Scope Simulator Main Control Room based on the SIEN2007 solution

    International Nuclear Information System (INIS)

    Ionescu, Ana Maria; Tutuianu, Bogdan; Ionescu, Teodor

    2009-01-01

    Modern personnel training, re-training and licensing is a guarantee of NPP's safe reliable operation. Cernavoda NPP personnel training system is the main objective of its specialized department built up as Training Center (TC), directly supervised by Administration of the National Nuclearelectrica Society (SNN) and National Regulatory Body for Nuclear Activities (CNCAN). It was implemented to ensure the abilities, skills and knowledge required by the safe reliable operation of the nuclear reactor by the Main Control Room (MCR) operators. This objective was reached through training lessons taught and tested on the Full Scope Simulator (FSS), the TC's main training tool, a replica of the MCR of the real plant. Its description is the subject of this paper. The TC's FSS includes a computer network equipped with a software connected to the specialized program DATAPATH supplied for Cernavoda FSS by the FSS provider, delivered by L-3/ MAPPS. An alternative to DATAPATH Communication of the L 3/MAPPS Simulation System, developed by Cernavoda Full Scope Simulator Staff, was presented in the previous edition of the symposium (see the SIEN 2007 paper). This original solution is now already applied in order to connect to simulation process Data Acquisition Systems DAS1 and DAS2, two new systems already installed in the real MCR but not included by the Cernavoda FSS initial design. Communication between simulation software and DAS1 and DAS2, considered to be simple receivers of simulated data both as much alike as the two DASs from real plant, is performed in parallel with DATAPATH in a safe mode and without affecting simulation process. This paperwork presents the above mentioned application of this communication solution, developed by the Cernavoda NPP Full Scope Simulator Staff with details about the hardware/software solutions and their performance, training impact, cost and benefits. (authors)

  20. Health System Measurement Project

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Health System Measurement Project tracks government data on critical U.S. health system indicators. The website presents national trend data as well as detailed...

  1. Radioisotope measurement system

    International Nuclear Information System (INIS)

    Villanueva Ruibal, Jose

    2007-01-01

    A radioisotope measurement system installed at L.M.R. (Ezeiza Atomic Center of CNEA) allows the measurement of nuclear activity from a wide range of radioisotopes. It permits to characterize a broad range of radioisotopes at several activity levels. The measurement hardware as well as the driving software have been developed and constructed at the Dept. of Instrumentation and Control. The work outlines the system's conformation and its operating concept, describes design characteristics, construction and the error treatment, comments assay results and supplies use advices. Measuring tests carried out employing different radionuclides confirmed the system performing satisfactorily and with friendly operation. (author) [es

  2. Measuring Systemic Risk

    DEFF Research Database (Denmark)

    Acharya, Viral V.; Heje Pedersen, Lasse; Philippon, Thomas

    2017-01-01

    We present an economic model of systemic risk in which undercapitalization of the financial sector as a whole is assumed to harm the real economy, leading to a systemic risk externality. Each financial institution’s contribution to systemic risk can be measured as its systemic expected shortfall...... of components of SES to predict emerging systemic risk during the financial crisis of 2007–2009....

  3. Pressure Measurement Systems

    Science.gov (United States)

    1990-01-01

    System 8400 is an advanced system for measurement of gas and liquid pressure, along with a variety of other parameters, including voltage, frequency and digital inputs. System 8400 offers exceptionally high speed data acquisition through parallel processing, and its modular design allows expansion from a relatively inexpensive entry level system by the addition of modular Input Units that can be installed or removed in minutes. Douglas Juanarena was on the team of engineers that developed a new technology known as ESP (electronically scanned pressure). The Langley ESP measurement system was based on miniature integrated circuit pressure-sensing transducers that communicated pressure information to a minicomputer. In 1977, Juanarena formed PSI to exploit the NASA technology. In 1978 he left Langley, obtained a NASA license for the technology, introduced the first commercial product, the 780B pressure measurement system. PSI developed a pressure scanner for automation of industrial processes. Now in its second design generation, the DPT-6400 is capable of making 2,000 measurements a second and has 64 channels by addition of slave units. New system 8400 represents PSI's bid to further exploit the 600 million U.S. industrial pressure measurement market. It is geared to provide a turnkey solution to physical measurement.

  4. Der Einfluss des mikrovaskulären Systems auf das Überleben eines Hauttransplantats

    OpenAIRE

    Motsch, Benjamin

    2017-01-01

    Transplantierte Organe benötigen eine zuverlässige Versorgung über das Gefäßsystem. Daher richtet diese Studie ihr Augenmerk darauf, ob eine Hemmung von Thrombozyten, sowohl allein als auch in Kombination mit einem mTOR-Hemmer, einen positiven Effekt auf die Ausprägung der mikrovaskulären Struktur in Hauttransplantaten bei einem allogenen Mausmodell hat. Für die Hauttransplantation wurde die Haut von C57BL6 (H-2b) als Spendertiere auf CBA/J(H-2k) Mäuse übertragen. Auf diese Weise wurde eine v...

  5. Bioelectric Signal Measuring System

    Science.gov (United States)

    Guadarrama-Santana, A.; Pólo-Parada, L.; García-Valenzuela, A.

    2015-01-01

    We describe a low noise measuring system based on interdigitated electrodes for sensing bioelectrical signals. The system registers differential voltage measurements in order of microvolts. The base noise during measurements was in nanovolts and thus, the sensing signals presented a very good signal to noise ratio. An excitation voltage of 1Vrms with 10 KHz frequency was applied to an interdigitated capacitive sensor without a material under test and to a mirror device simultaneously. The output signals of both devices was then subtracted in order to obtain an initial reference value near cero volts and reduce parasitic capacitances due to the electronics, wiring and system hardware as well. The response of the measuring system was characterized by monitoring temporal bioelectrical signals in real time of biological materials such as embryo chicken heart cells and bovine suprarenal gland cells.

  6. Electrochemical thermodynamic measurement system

    Science.gov (United States)

    Reynier, Yvan [Meylan, FR; Yazami, Rachid [Los Angeles, CA; Fultz, Brent T [Pasadena, CA

    2009-09-29

    The present invention provides systems and methods for accurately characterizing thermodynamic and materials properties of electrodes and electrochemical energy storage and conversion systems. Systems and methods of the present invention are configured for simultaneously collecting a suite of measurements characterizing a plurality of interconnected electrochemical and thermodynamic parameters relating to the electrode reaction state of advancement, voltage and temperature. Enhanced sensitivity provided by the present methods and systems combined with measurement conditions that reflect thermodynamically stabilized electrode conditions allow very accurate measurement of thermodynamic parameters, including state functions such as the Gibbs free energy, enthalpy and entropy of electrode/electrochemical cell reactions, that enable prediction of important performance attributes of electrode materials and electrochemical systems, such as the energy, power density, current rate and the cycle life of an electrochemical cell.

  7. Dialogue scanning measuring systems

    International Nuclear Information System (INIS)

    Borodyuk, V.P.; Shkundenkov, V.N.

    1985-01-01

    The main developments of scanning measuring systems intended for mass precision processsing of films in nuclear physics problems and in related fields are reviewed. A special attention is paid to the problem of creation of dialogue systems which permit to simlify the development of control computer software

  8. Aplicabilidade das técnicas de determinação de tamanho de partículas em sistemas de tratamento de água e esgoto sanitário Applicability of particle size measurement techniques in water and wastewater treatment systems

    Directory of Open Access Journals (Sweden)

    Hélio Rodrigues dos Santos

    2004-12-01

    Full Text Available O aprimoramento de sistemas de tratamento de água e de esgoto tem sido limitado pelo pouco conhecimento dos fenômenos ocorridos no interior das unidades e pela utilização de "parâmetros" não específicos (DBO, DQO etc. no monitoramento e controle de processos e operações. Por outro lado, fenômenos como transferência de massa, adsorção, difusão e reações bioquímicas são todos influenciados pela distribuição de tamanho de partículas, de modo que o emprego da análise de tamanho de partículas pode auxiliar na escolha e no aprimoramento de tecnologias de tratamento e na adoção de procedimentos operacionais apropriados. Neste artigo, são apresentadas as principais técnicas de determinação de tamanho de partículas e os potenciais benefícios de sua utilização em pesquisas e no aperfeiçoamento de projetos e rotinas de operação de sistemas de tratamento de água e esgoto sanitário.The improvement of water and wastewater treatment systems has been limited by the little knowledge of phenomena that take place inside the units and by the use of non-specific parameters (e.g. BOD, COD etc. in monitoring and controlling of treatment processes and operations. On the other hand, phenomena such as mass transfer, adsorption, diffusion and biochemical reaction are all influenced by particle size distribution, in a way that the use of particle size measurement can aid in choosing and improving treatment technology and in adoption of appropriate operational procedures. In this article, the main particle size measurement techniques are presented, as well as the potential benefits of its use in research and in the improvement of design and operational routines for water and wastewater treatment systems.

  9. Calorimetric measuring systems

    DEFF Research Database (Denmark)

    Ritchie, Andrew Ewen; Pedersen, John Kim; Blaabjerg, Frede

    2004-01-01

    in the system. If the switching speed can be increased, improvements may be possible (e.g., current ripple in an electrical machine or physical size of passive components may be reduced). On the other hand, increased switching speed may cause additional losses in a power electronic system and increase...... the system cooling requirement. A common problem is that high-frequency phenomena like proximity effect, skin effect, hysteresis losses, and eddy current losses appear in the systems. These losses are very difficult to treat both theoretically and in practice. It is often difficult to measure the effect...

  10. Legal system of nuclear waste disposal. Das System der atomaren Entsorgungsregelung

    Energy Technology Data Exchange (ETDEWEB)

    Dauk, W

    1983-01-01

    This doctoral thesis presents solutions to some of the legal problems encountered in the interpretation of the various laws and regulations governing nuclear waste disposal, and reveals the legal system supporting the variety of individual regulations. Proposals are made relating to modifications of problematic or not well defined provisions, in order to contribute to improved juridical security, or inambiguity in terms of law. The author also discusses the question of the constitutionality of the laws for nuclear waste disposal. Apart from the responsibility of private enterprise to contribute to safe treatment or recycling, within the framework of the integrated waste management concept, and apart from the Government's responsibility for interim or final storage of radioactive waste, there is a third possibility included in the legal system for waste management, namely voluntary measures taken by private enterprise for radioactive waste disposal. The licence to be applied for in accordance with section 3, sub-section (1) of the Radiation Protection Ordinance is interpreted to pertain to all measures of radioactive waste disposal, thus including final storage of radioactive waste by private companies. Although the terminology and systematic concept of nuclear waste disposal are difficult to understand, there is a functionable system of legal provisions contained therein. This system fits into the overall concept of laws governing technical safety and safety engineering.

  11. Measuring Systemic Risk

    DEFF Research Database (Denmark)

    Acharya, Viral V.; Heje Pedersen, Lasse; Philippon, Thomas

    We present a simple model of systemic risk and we show that each financial institution's contribution to systemic risk can be measured as its systemic expected shortfall (SES), i.e., its propensity to be undercapitalized when the system as a whole is undercapitalized. SES increases...... with the institution's leverage and with its expected loss in the tail of the system's loss distribution. Institutions internalize their externality if they are ‘taxed’ based on their SES. We demonstrate empirically the ability of SES to predict emerging risks during the financial crisis of 2007-2009, in particular......, (i) the outcome of stress tests performed by regulators; (ii) the decline in equity valuations of large financial firms in the crisis; and, (iii) the widening of their credit default swap spreads....

  12. Measuring Systemic Risk

    DEFF Research Database (Denmark)

    Heje Pedersen, Lasse

    We present a simple model of systemic risk and we show that each financial institution’s contribution to systemic risk can be measured as its systemic expected shortfall (SES), i.e., its propensity to be undercapitalized when the system as a whole is undercapitalized. SES increases...... with the institution’s leverage and with its expected loss in the tail of the system’s loss distribution. Institutions internalize their externality if they are “taxed” based on their SES. We demonstrate empirically the ability of SES to predict emerging risks during the financial crisis of 2007-2009, in particular......, (i) the outcome of stress tests performed by regulators; (ii) the decline in equity valuations of large financial firms in the crisis; and, (iii) the widening of their credit default swap spreads....

  13. Enterprise performance measurement systems

    Directory of Open Access Journals (Sweden)

    Milija Bogavac

    2014-10-01

    Full Text Available Performance measurement systems are an extremely important part of the control and management actions, because in this way a company can determine its business potential, its market power, potential and current level of business efficiency. The significance of measurement consists in influencing the relationship between the results of reproduction (total volume of production, value of production, total revenue and profit and investments to achieve these results (factors of production spending and hiring capital in order to achieve the highest possible quality of the economy. (The relationship between the results of reproduction and investment to achieve them quantitatively determines economic success as the quality of the economy. Measuring performance allows the identification of the economic resources the company has, so looking at the key factors that affect its performance can help to determine the appropriate course of action.

  14. Radon integral measurement system

    International Nuclear Information System (INIS)

    Garcia H, J.M.

    1994-01-01

    The Radon Integral Measurement System (SMIR) is a device designed specially to detect, to count and to store the data of the acquisition of alpha particles emitted by Radon-222 coming from the underground. The system includes a detection chamber, a radiation detector, a digital system with bateries backup and an auxiliary photovoltaic cell. A personal computer fixes the mode in which the system works, transmitting the commands to the system by the serial port. The heart of the system is a microprocesor working with interrupts by hardware. Every external device to the microprocessor sends his own interrupt request and the microprocessor handles the interrupts with a defined priority. The system uses a real time clock, compatible with the microprocessor, to take care of the real timing and date of the acquisition. A non volatile RAM is used to store data of two bytes every 15 minutes along 41 days as a maximum. After the setting up to the system by the computer, it can operate in stand alone way for up 41 days in the working place without the lose of any data. If the memory is full the next data will be written in the first locations of the memory. The memory is divided in pages corresponding every one of this to a different day of the acquisition. The counting time for every acquisition can be programmed by the user from 15 minutes to 65535 minutes but it is recommended to use a small time not to reach the limit of 65535 counts in every acquisition period. We can take information of the system without affecting the acquisition process in the field by using a lap top computer, then the information can be stored in a file. There is a program in the computer that can show the information in a table of values or in a bar graph. (Author)

  15. Common Data Acquisition Systems (DAS) Software Development for Rocket Propulsion Test (RPT) Test Facilities

    Science.gov (United States)

    Hebert, Phillip W., Sr.; Davis, Dawn M.; Turowski, Mark P.; Holladay, Wendy T.; Hughes, Mark S.

    2012-01-01

    The advent of the commercial space launch industry and NASA's more recent resumption of operation of Stennis Space Center's large test facilities after thirty years of contractor control resulted in a need for a non-proprietary data acquisition systems (DAS) software to support government and commercial testing. The software is designed for modularity and adaptability to minimize the software development effort for current and future data systems. An additional benefit of the software's architecture is its ability to easily migrate to other testing facilities thus providing future commonality across Stennis. Adapting the software to other Rocket Propulsion Test (RPT) Centers such as MSFC, White Sands, and Plumbrook Station would provide additional commonality and help reduce testing costs for NASA. Ultimately, the software provides the government with unlimited rights and guarantees privacy of data to commercial entities. The project engaged all RPT Centers and NASA's Independent Verification & Validation facility to enhance product quality. The design consists of a translation layer which provides the transparency of the software application layers to underlying hardware regardless of test facility location and a flexible and easily accessible database. This presentation addresses system technical design, issues encountered, and the status of Stennis development and deployment.

  16. Thyroid Uptake Measurement System

    International Nuclear Information System (INIS)

    Nguyen Duc Tuan; Nguyen Thi Bao My; Nguyen Van Sy

    2007-01-01

    The NED-UP.M7 is a complete thyroid uptake and analysis system specifically designed for nuclear medicine. Capable of performing a full range of studies this system provides fast, accurate results for Uptake Studies. The heart of the NED-UP.M7 is a microprocessor-controlled 2048 channel Compact Multi-Channel Analyzer, coupled to a 2 inch x 2 inch NaI(Tl) detector with a USB personal computer interface. The system offers simple, straight-forward operation using pre-programmed isotopes, and menudriven prompts to guide the user step by step through each procedure. The pre-programmed radionuclides include I-123, I-125, I-131, Tc-99m and Cs-137. The user-defined radionuclides also allow for isotope identification while the printer provides hard copy printouts for patient and department record keeping. The included software program running on PC (Windows XP-based) is a user friendly program with menudriven and graphic interface for easy controlling the system and managing measurement results of patient on Excel standard form. (author)

  17. Establishment of feeder-free culture system for human induced pluripotent stem cell on DAS nanocrystalline graphene

    Science.gov (United States)

    Lee, Hyunah; Nam, Donggyu; Choi, Jae-Kyung; Araúzo-Bravo, Marcos J.; Kwon, Soon-Yong; Zaehres, Holm; Lee, Taehee; Park, Chan Young; Kang, Hyun-Wook; Schöler, Hans R.; Kim, Jeong Beom

    2016-02-01

    The maintenance of undifferentiated human pluripotent stem cells (hPSC) under xeno-free condition requires the use of human feeder cells or extracellular matrix (ECM) coating. However, human-derived sources may cause human pathogen contamination by viral or non-viral agents to the patients. Here we demonstrate feeder-free and xeno-free culture system for hPSC expansion using diffusion assisted synthesis-grown nanocrystalline graphene (DAS-NG), a synthetic non-biological nanomaterial which completely rule out the concern of human pathogen contamination. DAS-NG exhibited advanced biocompatibilities including surface nanoroughness, oxygen containing functional groups and hydrophilicity. hPSC cultured on DAS-NG could maintain pluripotency in vitro and in vivo, and especially cell adhesion-related gene expression profile was comparable to those of cultured on feeders, while hPSC cultured without DAS-NG differentiated spontaneously with high expression of somatic cell-enriched adhesion genes. This feeder-free and xeno-free culture method using DAS-NG will facilitate the generation of clinical-grade hPSC.

  18. B P Das

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. B P Das. Articles written in Bulletin of Materials Science. Volume 25 Issue 6 November 2002 pp 517-519. Structural, dielectric and electrical properties of Sm-modified Pb(SnTi)O3 ferroelectric system · B P Das R N P Choudhary P K Mahapatra · More Details Abstract Fulltext ...

  19. Kalyan Das

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education. Kalyan Das. Articles written in Resonance – Journal of Science Education. Volume 5 Issue 12 December 2000 pp 76-76 Book Review. Linear Algebra and Linear Models · Kalyan Das · More Details Fulltext PDF ...

  20. S Das

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. S Das. Articles written in Bulletin of Materials Science. Volume 25 Issue 6 November 2002 pp 557-560. 3-D mapping with ellipsometrically determined physical thickness/refractive index of spin coated sol–gel silica layer · S Das P Pal S Roy S Chakraboarty P K Biswas.

  1. The energy policy turnaround. Designing the new system; Die Energiewende. Das neue System gestalten

    Energy Technology Data Exchange (ETDEWEB)

    Kohler, Stephan; Matsoukas, Stella [Deutsche Energie-Agentur GmbH, Berlin (Germany); Diermann, Ralph [Redaktionsbuero fuer Energie und Cleantech, Muenchen (Germany)

    2013-07-15

    The contribution under consideration describes the German energy system in the year 2050 as climatic friendly, secure and economic. The German Energy Agency (Berlin, Federal Republic of Germany) sketches the development to this target.

  2. A review and empirical study of the composite scales of the Das-Naglieri cognitive assessment system.

    Science.gov (United States)

    McCrea, Simon M

    2009-01-01

    Alexander Luria's model of the working brain consisting of three functional units was formulated through the examination of hundreds of focal brain-injury patients. Several psychometric instruments based on Luria's syndrome analysis and accompanying qualitative tasks have been developed since the 1970s. In the mid-1970s, JP Das and colleagues defined a specific cognitive processes model based directly on Luria's two coding units termed simultaneous and successive by studying diverse cross-cultural, ability, and socioeconomic strata. The cognitive assessment system is based on the PASS model of cognitive processes and consists of four composite scales of Planning-Attention-Simultaneous-Successive (PASS) devised by Naglieri and Das in 1997. Das and colleagues developed the two new scales of planning and attention to more closely model Luria's theory of higher cortical functions. In this paper a theoretical review of Luria's theory, Das and colleagues elaboration of Luria's model, and the neural correlates of PASS composite scales based on extant studies is summarized. A brief empirical study of the neuropsychological specificity of the PASS composite scales in a sample of 33 focal cortical stroke patients using cluster analysis is then discussed. Planning and simultaneous were sensitive to right hemisphere lesions. These findings were integrated with recent functional neuroimaging studies of PASS scales. In sum it was found that simultaneous is strongly dependent on dual bilateral occipitoparietal interhemispheric coordination whereas successive demonstrated left frontotemporal specificity with some evidence of interhemispheric coordination across the prefrontal cortex. Hence, support for the validity of the PASS composite scales was found as well as for the axiom of the independence of code content from code type originally specified in 1994 by Das, Naglieri, and Kirby.

  3. Integration of DAS (distributed acoustic sensing) vertical seismic profile and geostatistically modeled lithology data to characterize an enhanced geothermal system.

    Science.gov (United States)

    Cronin, S. P.; Trainor Guitton, W.; Team, P.; Pare, A.; Jreij, S.; Powers, H.

    2017-12-01

    In March 2016, a 4-week field data acquisition took place at Brady's Natural Lab (BNL), an enhanced geothermal system (EGS) in Fallan, NV. During these 4 weeks, a vibe truck executed 6,633 sweeps, recorded by nodal seismometers, horizontal distributed acoustic sensing (DAS) cable, and 400 meters of vertical DAS cable. DAS provides lower signal to noise ratio than traditional geophones but better spatial resolution. The analysis of DAS VSP included Fourier transform, and filtering to remove all up-going energy. Thus, allowing for accurate first arrival picking. We present an example of the Gradual Deformation Method (GDM) using DAS VSP and lithological data to produce a distribution of valid velocity models of BNL. GDM generates continuous perturbations of prior model realizations seeking the best match to the data (i.e. minimize the misfit). Prior model realizations honoring the lithological data were created using sequential Gaussian simulation, a commonly used noniterative geostatistical method. Unlike least-squares-based methods of inversion, GDM readily incorporates a priori information, such as a variogram calculated from well-based lithology information. Additionally, by producing a distribution of models, as opposed to one optimal model, GDM allows for uncertainty quantification. This project aims at assessing the integrated technologies ability to monitor changes in the water table (possibly to one meter resolution) by exploiting the dependence of seismic wave velocities on water saturation of the subsurface. This project, which was funded in part by the National Science Foundation, is a part of the PoroTomo project, funded by a grant from the U.S. Department of Energy.

  4. Mesozooplâncton do sistema estuarino de Barra das Jangadas, Pernambuco, Brasil Mesozooplankton of the estuarine system of Barra das Jangadas, Pernambuco, Brazil

    Directory of Open Access Journals (Sweden)

    Eliane A. H. Cavalcanti

    2008-09-01

    Full Text Available Estudos sobre o mesozooplâncton foram realizados no sistema estuarino de Barra das Jangadas, Pernambuco, Brasil (8º14'36"S, 34º56'28"W visando analisar a estrutura da comunidade. As amostras foram obtidas com rede de plâncton, com malha de 300 µm, durante os períodos, seco (janeiro/2001 e chuvoso (julho/2001, nas marés de sizígia e de quadratura, em intervalos de três horas. Foram identificados 37 taxa, destacando-se Copepoda com as espécies Pseudodiaptomus acutus (F. Dahl, 1894, Pseudodiaptomus richardi (F. Dahl, 1894, Acartia lilljeborgi (Giesbrecht, 1892, Parvocalanus crassirostris (Dahl, 1894, Oithona hebes (Santos, 1973 e Notodiaptomus cearensis Wright, 1936. A densidade total durante o período seco variou de 69,34 a 8.568,34 org.m-3. Para o período chuvoso variou de 261,98 a 10.224,83 org.m-3. Os Crustacea meroplanctônicos (Brachyura zoea foram muito freqüentes e muito abundantes, destacando seu importante papel na cadeia trófica pelágica. A diversidade específica durante o período seco, variou de 0,44 a 3,13 bits.ind-1, e para o período chuvoso de 0,66 a 2,93 bits.ind-1. Os baixos valores de diversidade ocorreram devido à dominância de Brachyura (zoea. A análise de agrupamento revelou a formação de dois grupos. O primeiro formado por espécies marinhas e euri-halinas, e o segundo por espécies indicadoras de ambientes estuarinos.Mesozooplankton studies were carried out at the Barra das Jangadas estuarine system, Pernambuco, Brazil (8º14'36"S, 34º56'28"W, to assess its community structure. Samples were collected with a plankton net (300 µm mesh size during the dry (January, 2001 and rainy (July, 2001 seasons, with three hour intervals between each sampling, both in spring and neap tides. Thirty seven mesozooplankton taxa were identified, from which Copepoda were particularly abundant, including the species Pseudodiaptomus acutus (F. Dahl, 1894, Peudodiaptomus richardi (F. Dahl, 1894, Acartia lilljeborgi

  5. Systems Measures of Water Distribution System Resilience

    Energy Technology Data Exchange (ETDEWEB)

    Klise, Katherine A. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Murray, Regan [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Walker, La Tonya Nicole [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-01-01

    Resilience is a concept that is being used increasingly to refer to the capacity of infrastructure systems to be prepared for and able to respond effectively and rapidly to hazardous events. In Section 2 of this report, drinking water hazards, resilience literature, and available resilience tools are presented. Broader definitions, attributes and methods for measuring resilience are presented in Section 3. In Section 4, quantitative systems performance measures for water distribution systems are presented. Finally, in Section 5, the performance measures and their relevance to measuring the resilience of water systems to hazards is discussed along with needed improvements to water distribution system modeling tools.

  6. Measuring name system health

    NARCIS (Netherlands)

    Casalicchio, Emiliano; Caselli, Marco; Coletta, Alessio; Di Blasi, Salvatore; Fovino, Igor Nai; Butts, Jonathan; Shenoi, Sujeet

    2012-01-01

    Modern critical infrastructure assets are exposed to security threats arising from their use of IP networks and the Domain Name System (DNS). This paper focuses on the health of DNS. Indeed, due to the increased reliance on the Internet, the degradation of DNS could have significant consequences for

  7. Optical absorption measurement system

    International Nuclear Information System (INIS)

    Draggoo, V.G.; Morton, R.G.; Sawicki, R.H.; Bissinger, H.D.

    1989-01-01

    This patent describes a non-intrusive method for measuring the temperature rise of optical elements under high laser power optical loading to determine the absorption coefficient. The method comprises irradiating the optical element with a high average power laser beam, viewing the optical element with an infrared camera to determine the temperature across the optical element and calculating the absorption of the optical element from the temperature

  8. Microbial ecology measurement system

    Science.gov (United States)

    1972-01-01

    The sensitivity and potential rapidity of the PIA test that was demonstrated during the feasibility study warranted continuing the effort to examine the possibility of adapting this test to an automated procedure that could be used during manned missions. The effort during this program has optimized the test conditions for two important respiratory pathogens, influenza virus and Mycoplasma pneumoniae, developed a laboratory model automated detection system, and investigated a group antigen concept for virus detection. Preliminary tests on the handling of oropharygeal clinical samples for PIA testing were performed using the adenovirus system. The results obtained indicated that the PIA signal is reduced in positive samples and is increased in negative samples. Treatment with cysteine appeared to reduce nonspecific agglutination in negative samples but did not maintain the signal in positive samples.

  9. The brake system of the future for commercial vehicles; Das Nutzfahrzeug Bremssystem der Zukunft

    Energy Technology Data Exchange (ETDEWEB)

    Gerum, E. [Knorr Bremse SfN GmbH (Germany)

    2004-07-01

    Over decades into the development of the CV brake system were indicated by an exponential growth in functionality and complexity. Another increase in functionality has to be expected in the future. The complexity must, however, be reduced by mechatronical integration to a measure so that it can be mastered by all ones involved. Bringing today's components together modularly becomes absolutely necessary. The long-term goal of a ''drive by Wire'' concept in connection with active safety systems requires a new infrastructure regarding information processing and electrical energy supply. Concepts are presented. (orig.)

  10. A drive system for the car of the future; Ein Antriebssystem fuer das Auto der Zukunft

    Energy Technology Data Exchange (ETDEWEB)

    Guzzella, L.

    2008-07-01

    This presentation made at the Swiss 2008 research conference on traffic by Professor Lino Guzzela from the Swiss Federal Institute of Technology ETH in Zurich, Switzerland, takes a look at drive systems for the car of the future. New concepts for increasing the efficiency of cars are discussed, including down sizing and supercharging, a pneumatic hybrid and recuperation systems. The results of simulations and measurements made on an actual pneumatic engine and supercharged units are presented and discussed. Finally, options for future work are presented and discussed.

  11. Mesozooplankton of the estuarine system of Barra das Jangadas, Pernambuco, Brazil

    OpenAIRE

    Cavalcanti, Eliane A. H.; Neumann-Leitão, Sigrid; Vieira, Dilma A. do N.

    2008-01-01

    Estudos sobre o mesozooplâncton foram realizados no sistema estuarino de Barra das Jangadas, Pernambuco, Brasil (8º14'36"S, 34º56'28"W) visando analisar a estrutura da comunidade. As amostras foram obtidas com rede de plâncton, com malha de 300 µm, durante os períodos, seco (janeiro/2001) e chuvoso (julho/2001), nas marés de sizígia e de quadratura, em intervalos de três horas. Foram identificados 37 taxa, destacando-se Copepoda com as espécies Pseudodiaptomus acutus (F. Dahl, 1894), Pseudodi...

  12. Integration of renewable energies into the power supply system; Integration erneuerbarer Energien in das Stromversorgungssystem

    Energy Technology Data Exchange (ETDEWEB)

    Neubarth, Juergen [e3 consult, Innsbruck (Austria)

    2011-08-15

    In contrast to the record breaking speed with which the German government presented its new energy concept in response to the Fukushima reactor disaster, the practical task of transforming our energy supply system will take decades. One of the greatest challenges involved in the energy turnaround will be that of integrating renewable energies into the power supply system. A holistic analysis and assessment of all aspects involved in this is therefore of utmost importance. Under the focal topic of its new publication ''Energie fuer Deutschland 2011'', Weltenergierat Deutschland e.V. presents a detailed summary of this challenge, thus providing a basis for further discussion. It shows that efficient integration of renewable energies must necessarily involve a combination of systems engineering and organisational measures.

  13. Proton gyromagnetic precision measurement system

    International Nuclear Information System (INIS)

    Zhu Deming; Deming Zhu

    1991-01-01

    A computerized control and measurement system used in the proton gyromagnetic precision meausrement is descirbed. It adopts the CAMAC data acquisition equipment, using on-line control and analysis with the HP85 and PDP-11/60 computer systems. It also adopts the RSX11M computer operation system, and the control software is written in FORTRAN language

  14. Sarma, Prof. Dipankar Das

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 1993 Section: Chemistry. Sarma, Prof. Dipankar Das Ph.D. (IISc), FNA, FNASc, FTWAS Council Service: 2016-. Date of birth: 15 September 1955. Specialization: Strongly Interacting Electron Systems, Disordered Systems, Nanomaterials and Energy Materials Address: Professor ...

  15. Facilities projects performance measurement system

    International Nuclear Information System (INIS)

    Erben, J.F.

    1979-01-01

    The two DOE-owned facilities at Hanford, the Fuels and Materials Examination Facility (FMEF), and the Fusion Materials Irradiation Test Facility (FMIT), are described. The performance measurement systems used at these two facilities are next described

  16. Automated measuring systems. Automatisierte Messsysteme

    Energy Technology Data Exchange (ETDEWEB)

    1985-01-01

    Microprocessors have become a regular component of automated measuring systems. Experts offer their experience and basic information in 24 lectures and 10 poster presentations. The focus is on the following: Automated measuring, computer and microprocessor use, sensor technique, actuator technique, communication, interfaces, man-system interaction, distrubance tolerance and availability as well as uses. A discussion meeting is dedicated to the theme complex sensor digital signal, sensor interface and sensor bus.

  17. Acoustic building infiltration measurement system

    Science.gov (United States)

    Muehleisen, Ralph T.; Raman, Ganesh

    2018-04-10

    Systems and methods of detecting and identifying a leak from a container or building. Acoustic pressure and velocity are measured. Acoustic properties are acquired from the measured values. The acoustic properties are converted to infiltration/leakage information. Nearfield Acoustic Holography (NAH) may be one method to detect the leakages from a container by locating the noise sources.

  18. Establishing System Measures of Effectiveness

    Science.gov (United States)

    2001-03-01

    Halpin, 1991] Andriole, Stephen J. and Stanley M. Halpin, editors. Information Technology for Command and Control: Methods and Tools for Systems...Systems with Models and Objects, New York: Mc Graw -Hill, 1997. [Pawlowski, 1993a] Pawlowski, Thomas J. III, LTC. C3IEW Measures of Effectiveness

  19. Measuring Complexity of SAP Systems

    Directory of Open Access Journals (Sweden)

    Ilja Holub

    2016-10-01

    Full Text Available The paper discusses the reasons of complexity rise in ERP system SAP R/3. It proposes a method for measuring complexity of SAP. Based on this method, the computer program in ABAP for measuring complexity of particular SAP implementation is proposed as a tool for keeping ERP complexity under control. The main principle of the measurement method is counting the number of items or relations in the system. The proposed computer program is based on counting of records in organization tables in SAP.

  20. Airborne Atmospheric Aerosol Measurement System

    Science.gov (United States)

    Ahn, K.; Park, Y.; Eun, H.; Lee, H.

    2015-12-01

    It is important to understand the atmospheric aerosols compositions and size distributions since they greatly affect the environment and human health. Particles in the convection layer have been a great concern in global climate changes. To understand these characteristics satellite, aircraft, and radio sonde measurement methods have usually been used. An aircraft aerosol sampling using a filter and/or impactor was the method commonly used (Jay, 2003). However, the flight speed particle sampling had some technical limitations (Hermann, 2001). Moreover, the flight legal limit, altitude, prohibited airspace, flight time, and cost was another demerit. To overcome some of these restrictions, Tethered Balloon Package System (T.B.P.S.) and Recoverable Sonde System(R.S.S.) were developed with a very light optical particle counter (OPC), impactor, and condensation particle counter (CPC). Not only does it collect and measure atmospheric aerosols depending on altitudes, but it also monitors the atmospheric conditions, temperature, humidity, wind velocity, pressure, GPS data, during the measurement (Eun, 2013). In this research, atmospheric aerosol measurement using T.B.P.S. in Ansan area is performed and the measurement results will be presented. The system can also be mounted to an unmanned aerial vehicle (UAV) and create an aerial particle concentration map. Finally, we will present measurement data using Tethered Balloon Package System (T.B.P.S.) and R.S.S (Recoverable Sonde System).

  1. Nuclear systems of level measurement

    International Nuclear Information System (INIS)

    Lara, A.J.; Cabrera, M.J.

    1992-01-01

    In the industry there are processes in which is necessary to maintain the products level controlled which are handled for their transformation. The majority of such processes and by the operation conditions, they do not admit measure systems of level of invasive type then the application of nuclear techniques for level measurement results a big aid in these cases, since all the system installation is situated beyond frontiers of vessels that contain the product for measuring. In the Department of Nuclear Technology Applications of Mexican Petroleum Institute was developed a level measurement system by gamma rays transmission which operates in the Low Density Polyethylene plant of Petrochemical Complex Escolin at Poza Rica, Veracruz, Mexico. (Author)

  2. MiDAS

    DEFF Research Database (Denmark)

    McIlroy, Simon Jon; Saunders, Aaron Marc; Albertsen, Mads

    2015-01-01

    The Microbial Database for Activated Sludge (MiDAS) field guide is a freely available online resource linking the identity of abundant and process critical microorganisms in activated sludge wastewater treatment systems to available data related to their functional importance. Phenotypic properties...... of some of these genera are described, but most are known only from sequence data. The MiDAS taxonomy is a manual curation of the SILVA taxonomy that proposes a name for all genus-level taxa observed to be abundant by large-scale 16 S rRNA gene amplicon sequencing of full-scale activated sludge...... communities. The taxonomy can be used to classify unknown sequences, and the online MiDAS field guide links the identity to the available information about their morphology, diversity, physiology and distribution. The use of a common taxonomy across the field will provide a solid foundation for the study...

  3. Ground-truth measurement systems

    Science.gov (United States)

    Serafin, R.; Seliga, T. A.; Lhermitte, R. M.; Nystuen, J. A.; Cherry, S.; Bringi, V. N.; Blackmer, R.; Heymsfield, G. M.

    1981-01-01

    Ground-truth measurements of precipitation and related weather events are an essential component of any satellite system designed for monitoring rainfall from space. Such measurements are required for testing, evaluation, and operations; they provide detailed information on the actual weather events, which can then be compared with satellite observations intended to provide both quantitative and qualitative information about them. Also, very comprehensive ground-truth observations should lead to a better understanding of precipitation fields and their relationships to satellite data. This process serves two very important functions: (a) aiding in the development and interpretation of schemes of analyzing satellite data, and (b) providing a continuing method for verifying satellite measurements.

  4. Regarding KUR Reactivity Measurement System

    International Nuclear Information System (INIS)

    Nakamori, Akira; Hasegawa, Kei; Tsuchiyama, Tatsuo; Yamamoto, Toshihiro; Okumura, Ryo; Sano, Tadafumi

    2012-01-01

    This article reported: (1) the outline of the reactivity measurement system of Kyoto University Research Reactor (KUR), (2) the calibration data of control rod, (3) the problems and the countermeasures for range switching of linear output meter. For the laptop PC for the reactivity measurement system, there are four input signals: (1) linear output meter, (2) logarithmic output meter, (3) core temperature gauge, and (4) control rod position. The hardware of reactivity measurement system is controlled with Labview installed on the laptop. Output, reactivity, reactor period, and the change in reactivity due to temperature effect or Xenon effect are internally calculated and displayed in real-time with Labview based on the four signals above. Calculation results are recorded in the form of a spreadsheet. At KUR, the reactor core arrangement was changed, so the control rod was re-calibrated. At this time, calculated and experimental values of reactivity based on the reactivity measurement system were compared, and it was confirmed that the reactivity calculation by Labview was accurate. The range switching of linear output meter in the nuclear instrumentation should automatically change within the laptop, however sometimes this did not function properly in the early stage. It was speculated that undefined percent values during the transition of percent value were included in the calculation and caused calculation errors. The range switching started working properly after fixing this issue. (S.K.)

  5. easyDAS: Automatic creation of DAS servers

    Directory of Open Access Journals (Sweden)

    Jimenez Rafael C

    2011-01-01

    Full Text Available Abstract Background The Distributed Annotation System (DAS has proven to be a successful way to publish and share biological data. Although there are more than 750 active registered servers from around 50 organizations, setting up a DAS server comprises a fair amount of work, making it difficult for many research groups to share their biological annotations. Given the clear advantage that the generalized sharing of relevant biological data is for the research community it would be desirable to facilitate the sharing process. Results Here we present easyDAS, a web-based system enabling anyone to publish biological annotations with just some clicks. The system, available at http://www.ebi.ac.uk/panda-srv/easydas is capable of reading different standard data file formats, process the data and create a new publicly available DAS source in a completely automated way. The created sources are hosted on the EBI systems and can take advantage of its high storage capacity and network connection, freeing the data provider from any network management work. easyDAS is an open source project under the GNU LGPL license. Conclusions easyDAS is an automated DAS source creation system which can help many researchers in sharing their biological data, potentially increasing the amount of relevant biological data available to the scientific community.

  6. Measurement system for large motions

    International Nuclear Information System (INIS)

    Noyes, R.; Davies, L.; Kalinowski, J.; Stubbs, T.

    1979-05-01

    The system used to measure the response of geologic media to stress waves generated during and after underground tests performed by the Lawrence Livermore Laboratory (LLL) at the Department of Energy's Nevada Test Site (NTS) is described. Included are descriptions of the system transducers and accelerometers, the procedures used in calibrating and packaging the system at the North Las Vegas Facility of EG and G, Inc., the positioning of equipment during fielding activities at NTS, and the procedures used at LLL's facilities in California to reduce and analyze the data recorded on magnetic tape at NTS during an underground nuclear explosion. In summarizing, the authors give the system high marks, attributing its success to good basic design, careful installation, and rigorous calibration and data analysis techniques applied with good judgement on the part of the instrumentation engineers and data analysts. 10 figures

  7. FUeW opts for wireless centralised ripple control systems; Das FUeW entscheidet sich fuer Funk-Rundsteuerung

    Energy Technology Data Exchange (ETDEWEB)

    Fuchs, G [Fraenkische Ueberlandwerk AG, Nuernberg (Germany); Saupe, R [EFR Europaeische Funk-Rundsteuerung GmbH, Berlin (Germany)

    1996-01-15

    After extensive trials in the course of a project study Fraenkische Ueberlandwerk AG (FUeW) has decided to introduce a wireless centralised ripple control system for its entire service area. The system will initially be used for synchronising and parameterising multiple tariff meters. Ripple control receivers are to take over the function formerly perfomed by switch clocks of switching between night and day tariff. FUeW`s decision was essentially motivated by the proven reliability of wireless centralised ripple control systems and by the economic advantages of this modern technology. (orig.) [Deutsch] Die Fraenkische Ueberlandwerk AG (FUeW), Nuernberg, hat nach umfangreichen Versuchen im Rahmen einer Projektstudie entschieden, die Funk-Rundsteuerung flaechendeckend im Versorgungsgebiet einzusetzen. Das System wird zunaechst zur Synchronisierung und Parametrierung von Mehrtarifzaehlern angewendet. Wurde bisher die HT/NT-Umschaltung der Zaehler durch Schaltuhren durchgefuehrt, so wird kuenftig ein Funk-Rundsteuerempfaenger diese Aufgabe uebernehmen. Wesentlich fuer die Entscheidung des FUeW waren die bewiesene Funktionssicherheit der Funk-Rundsteuerung und die wirtschaftlichen Vorteile, die sich durch den Einsatz dieser modernen Technik ergeben. (orig.)

  8. TRU assay system and measurements

    International Nuclear Information System (INIS)

    Brodzinski, R.L.

    1984-02-01

    The measurement of the transuranic content of nuclear products or process residues has become increasingly important for the recovery of fissionable material from spent fuel elements, the identification of commercial fuel elements which have not yet reached full burnup, the measurement and recovery of transuranics from discarded or stored waste materials, the determination of the transuranic content in high gamma activity waste material scheduled for disposal, compliance with 10CFR61 by land burial operators/shippers, and the satisfaction of accountability requirements. Active neutron interrogation techniques measure either the prompt neutrons or the beta delayed neutrons from fission products following induced fission. These techniques normally only measure fissile transuranics ( 235 U, 239 Pu, and 241 Pu) and are commonly applied only to contact handleable waste. Passive neutron interrogation techniques, on the other hand, are capable of measuring all transuranics except 235 U with adequate sensitivity and will work on both contact handleable and high gamma activity wastes. Since the passive techniques are senstitive to a wider spectrum of transuranic isotopes than the active techniques, substantially less complex and less expensive than the active systems, and they have proven techniques for measuring small quantities of TRU in high gamma activity packages, the passive neutron TRU assay technology was chosen for development into the instruments discussed in this paper

  9. The integrated engineering system for the HVAC branch. Annex; Das integrierte Ingenieursystem fuer die Haustechnikbranche; Anhang

    Energy Technology Data Exchange (ETDEWEB)

    Allenspach, J.; Duppenthaler, A.; Helbling, R.; Kohler, T.; Mantel, R.; Meineke, E. [Paul Scherrer Inst. (PSI), Villigen (Switzerland)

    1994-01-01

    In 1987, the intention of the former Swiss Federal Institute for Reactor Research was to initiate a transfer of know-how into practice by launching this project. The increasing need for software engineering tools by heating, ventilation and air conditioning (HVAC) companies demanded a new tool; to realise it, a joint venture project with private industry should concentrate the individual capabilities of each partner toward this goal. The present report describes the concept of the integrated engineering system, its user interface, the models, graphics, tools, multiuser operation and the system boundary. Results of field tests are presented together with information of the availability of the system. The annex contains the agreement for the usage of the public-domain-version of the system, experience reports of pilot clients and the end user`s and developer`s documentation. (author) figs., tabs., refs.

  10. Air conditioning systems of Porsche Panamera; Das Klimatisierungssystem des Porsche Panamera

    Energy Technology Data Exchange (ETDEWEB)

    Mall, Gernot; Deyhle, Hagen [Porsche AG, Stuttgart (Germany); Engelhardt, Martin [Behr GmbH und Co. KG, Stuttgart (Germany); Gremme, Johannes [BehrHella Thermocontrol GmbH, Lippstadt (Germany)

    2010-07-01

    The Porsche Panama, an innovative Gran Turismo is the newest edition to the Porsche sportscar family. The Panamera climate control system is a major contributor in achieving the goal of premium driver comfort. In addition to excellent performance and comfort requirements on the system and package and an uncompromising lightweight design, premium comfort for the rear seat passengers was of special emphasis. These targets were achieved through a newly developed 2- respective 4-zone climate control system. The climatic comfort from the passenger's point of view is enhanced due to the ability to individually set temperature, air distribution and air volume for every passenger. The system incorporates a model based ''air volume control'' and uses a distinguishing feature, a dashboard integrated air distribution field. (orig.)

  11. Unexploded Ordnance (UXO) Data Analysis System (DAS). Environmental Quality Technology Program

    Science.gov (United States)

    2009-09-01

    is comprised of an EMI sensor, cesium (Cs) vapor magnetometer , fluxgate magnetometer , hand-held data acquisition computer, integrated power supply...Geometrics model 823A Cs vapor magnetometer . The fluxgate magnetometer is a Bartington model Mag-3MRN60, three- axis fluxgate magnetometer . The system...9. The ERDC hand-held Dual TFM/EMI with ArcSecond positioning system. During standard usage, the fluxgate magnetometer is used to provide the

  12. Energy efficient solutions for the complete railway system; Energieeffiziente Loesungen fuer das Gesamtsystem Bahn

    Energy Technology Data Exchange (ETDEWEB)

    Meinert, M.; Rechenberg, K.; Hein, G. [Siemens AG, Erlangen (Germany)

    2007-07-01

    Innovative technologies for the power supply of electric railway vehicles by stationary and mobile devices allow to operate the complete railway system in an energy efficient manner and therefore reduce the energy consumption considerably. So it is necessary to examine the power supply of the railway network as well as the railway vehicles and their own operational behaviour within the railway network. A complete tramway system was choosen as one example. (orig.)

  13. Load management potentials for the railway power system; Potenziale fuer das Lastmanagement im Bahnenergiesystem

    Energy Technology Data Exchange (ETDEWEB)

    Bosch, Julius; Aniceto, Josep M. [SBB AG Infrastruktur Energie, Zollikofen (Switzerland)

    2013-02-15

    The railway power supply system of the Schweizerische Bundesbahnen (SBB) is characterised by major load fluctuations that are expected to increase in the future. The available power that is generated must be kept at absolute load peak level which causes high costs. Simulations show that a load management is a practicable way of noticeably reducing load peaks in the SBB railway power supply system without having an adverse effect on railway operations or the energy demand.

  14. Keeping the power distribution system in the balance; Das Netz in der Waage halten

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2013-06-15

    Decentralized structures and intelligent networks most of them are fueled by renewable energy sources are becoming reality. If the green energy is controlled and marketed commonly in future, the challenges for the network can be solved, said the scientists of the Fraunhofer Institute for Wind Energy and Energy System Technology (Bremerhaven, Federal Republic of Germany). They explore the utilization of combined cycle power plants in various projects. Already today the power plants provide a contribution to system stability. Several vendors make first experiences.

  15. Common Data Acquisition Systems (DAS) Software Development for Rocket Propulsion Test (RPT) Test Facilities - A General Overview

    Science.gov (United States)

    Hebert, Phillip W., Sr.; Hughes, Mark S.; Davis, Dawn M.; Turowski, Mark P.; Holladay, Wendy T.; Marshall, PeggL.; Duncan, Michael E.; Morris, Jon A.; Franzl, Richard W.

    2012-01-01

    The advent of the commercial space launch industry and NASA's more recent resumption of operation of Stennis Space Center's large test facilities after thirty years of contractor control resulted in a need for a non-proprietary data acquisition system (DAS) software to support government and commercial testing. The software is designed for modularity and adaptability to minimize the software development effort for current and future data systems. An additional benefit of the software's architecture is its ability to easily migrate to other testing facilities thus providing future commonality across Stennis. Adapting the software to other Rocket Propulsion Test (RPT) Centers such as MSFC, White Sands, and Plumbrook Station would provide additional commonality and help reduce testing costs for NASA. Ultimately, the software provides the government with unlimited rights and guarantees privacy of data to commercial entities. The project engaged all RPT Centers and NASA's Independent Verification & Validation facility to enhance product quality. The design consists of a translation layer which provides the transparency of the software application layers to underlying hardware regardless of test facility location and a flexible and easily accessible database. This presentation addresses system technical design, issues encountered, and the status of Stennis' development and deployment.

  16. The international regime for nuclear safety after Fukushima; Das internationale System nuklearer Sicherheit nach Fukushima

    Energy Technology Data Exchange (ETDEWEB)

    Raetzke, Christian [CONLAR Consulting on Nuclear Law and Regulation, Leipzig (Germany)

    2014-05-15

    The Chernobyl catastrophe in 1986 lead to a new foundation of the international regime for nuclear safety: the 1994 Convention on Nuclear Safety introduced for the first time obligations on adhering states to adopt certain principles to achieve a high level of safety. The Convention, however, does not contain detailed standards, nor does it install a 'hard' mechanism for control and enforcement. While the system has undoubtedly lead to improvements in nuclear safety worldwide, it was not able to detect and remedy the deficiencies in the Japanese system. Ideas voiced immediately after the Fukushima accident to take a further decisive step towards a more stringent international system seemed not to be met with enthusiasm. The general tendency is to use the existing instruments and mechanisms in a more effective manner. However, very recently (in April 2014) the member states of the Convention on Nuclear Safety decided to stage a diplomatic conference with the aim to amend the Convention and to insert safety objectives. Time will eventually show whether this is a first, but decisive step towards the idea of an international system of mandatory and enforceable nuclear safety standards. (orig.)

  17. Lightweight, Miniature Inertial Measurement System

    Science.gov (United States)

    Tang, Liang; Crassidis, Agamemnon

    2012-01-01

    A miniature, lighter-weight, and highly accurate inertial navigation system (INS) is coupled with GPS receivers to provide stable and highly accurate positioning, attitude, and inertial measurements while being subjected to highly dynamic maneuvers. In contrast to conventional methods that use extensive, groundbased, real-time tracking and control units that are expensive, large, and require excessive amounts of power to operate, this method focuses on the development of an estimator that makes use of a low-cost, miniature accelerometer array fused with traditional measurement systems and GPS. Through the use of a position tracking estimation algorithm, onboard accelerometers are numerically integrated and transformed using attitude information to obtain an estimate of position in the inertial frame. Position and velocity estimates are subject to drift due to accelerometer sensor bias and high vibration over time, and so require the integration with GPS information using a Kalman filter to provide highly accurate and reliable inertial tracking estimations. The method implemented here uses the local gravitational field vector. Upon determining the location of the local gravitational field vector relative to two consecutive sensors, the orientation of the device may then be estimated, and the attitude determined. Improved attitude estimates further enhance the inertial position estimates. The device can be powered either by batteries, or by the power source onboard its target platforms. A DB9 port provides the I/O to external systems, and the device is designed to be mounted in a waterproof case for all-weather conditions.

  18. Aerial radiological measuring system program

    International Nuclear Information System (INIS)

    Doyle, J.F.; Boyns, P.K.

    1972-01-01

    The present ARMS aircraft has an effective survey time of four hours. Typical survey altitudes are 300 to 500 feet for terrain surveys and up to 20,000 feet for cloud tracks. A number of special airframe modifications have been made to accommodate the various sensor systems. The ARMS radiation measurement system consists of fourteen 4-inch diameter by 4-inch thick sodium iodide (NaI) detectors, a summing network for the detector signals, single and multichannel analyzers, analog computers, digital display and recording equipment, a doppler radar position computer, and strip chart recorders. Major subsystems include meteorology sensors, multispectral camera systems, and an infrared scanner for thermal mapping. Additional radiation detectors include an alpha spectrometer and a beta counter, used to count filter samples taken from a 150 cfm air sampler, which is a permanent part of the aircraft. A small lead shield houses a 1 / 2 -in. x 3-in. NaI crystal for beta and gamma counting of air filter samples. Several BF 3 neutron detectors are also available for neutron counting. The raw data from the gross gamma count and the gamma spectral measurements are permanently recorded on paper tape, and they must undergo reduction and analysis for final characterization of the radiological properties of the surveyed area. (U.S.)

  19. The new IEA research programme on PV systems in buildings; Das neue Forschungsprogramm der internationalen Energieagentur zu Photovoltaik an Gebaeuden

    Energy Technology Data Exchange (ETDEWEB)

    Laukamp, H.; Erge, T. [Fraunhofer-Inst. fuer Solare Energiesysteme, Freiburg (Germany). Abt. fuer Photovoltaische Systeme und Messtechnik

    1998-02-01

    The International Energy Agency coordinates and supports the cooperation of OECD countries in energy politics and energy technologies by technology-oriented scientific programmes (`implementing agreements`). Under these agreements subject-oriented scientific projects (`tasks`) are carried out. Within the `Photovoltaic Power Systems Programme` the Task VII (Photovoltaics in the Built Environment) has just begun. The Fraunhofer ISE was contracted to coordinate the German contribution to Task VII and to organize information transfer to interested German institutions. So far Task VII focussed on a selection of architecturally outstanding PV buildings, on developing criteria to assess their quality and on a critical review of planned PV buildings. (orig.) [Deutsch] Die Internationale Energieagentur foerdert die Zusammenarbeit der OECD Laender in der Energiepolitik und bei den Energietechnologien, durch gemeinsam vereinbarte technologiespezifische Programme (`Implementing Agreements`). Die Programme werden durch Projekte (`Tasks`) konkretisiert. Im Programm `Photovoltaic Power Systems` wird derzeit Task VII `Photovoltaics in the Built Environment` begonnen. Das Fraunhofer ISE wurde gebeten, die deutsche Beteiligung hieran zu koordinieren und den Informationstransfer zu interessierten deutschen Firmen und Instituten zu organisieren. Schwerpunkte bisheriger Arbeiten lagen bei der Auswahl architektonisch herausragender PV-Gebaeude, bei der Erarbeitung von Kriterien zu ihrer Beurteilung und bei der kritischen Diskussion geplanter PV-Gebaeude. (orig.)

  20. Multiplex measuring systems in physics

    International Nuclear Information System (INIS)

    Soroko, L.M.

    1980-01-01

    The principles of operation of multiplex devices used in different spheres of physics are discussed. The ''multiplex'' notion means that the data output of the device is an integral image of the functional dependence under investigation, but not its readings as in usual instruments. The analysis of the present state of developments of the multiplex systems in optics, nuclear magnetic resonance spectroscopy, in time-of-flight spectrometers for slow and fast neutrons, as well as elementary particle detectors, is given. The construction algorithms for the digital codes are presented, the history of development of the multiplex measuring principle is given [ru

  1. Aerial measuring system sensor modeling

    International Nuclear Information System (INIS)

    Detwiler, Rebecca

    2002-01-01

    The AMS fixed-wing and rotary-wing systems are critical National Nuclear Security Administration (NNSA) Emergency Response assets. This project is principally focused on the characterization of the sensors utilized with these systems via radiation transport calculations. The Monte Carlo N-Particle code (MCNP) which has been developed at Los Alamos National Laboratory was used to model the detector response of the AMS fixed wing and helicopter systems. To validate the calculations, benchmark measurements were made for simple source-detector configurations. The fixed-wing system is an important tool in response to incidents involving the release of mixed fission products (a commercial power reactor release), the threat or actual explosion of a Radiological Dispersal Device, and the loss or theft of a large industrial source (a radiography source). Calculations modeled the spectral response for the sensors contained, a 3-element NaI detector pod and HpGe detector, in the relevant energy range of 50 keV to 3 MeV. NaI detector responses were simulated for both point and distributed surface sources as a function of gamma energy and flying altitude. For point sources, photo-peak efficiencies were calculated for a zero radial distance and an offset equal to the altitude. For distributed sources approximating infinite plane, gross count efficiencies were calculated and normalized to a uniform surface deposition of 1 C i/m2

  2. Aerial Measuring System Sensor Modeling

    International Nuclear Information System (INIS)

    Detwiler, R.S.

    2002-01-01

    This project deals with the modeling the Aerial Measuring System (AMS) fixed-wing and rotary-wing sensor systems, which are critical U.S. Department of Energy's National Nuclear Security Administration (NNSA) Consequence Management assets. The fixed-wing system is critical in detecting lost or stolen radiography or medical sources, or mixed fission products as from a commercial power plant release at high flying altitudes. The helicopter is typically used at lower altitudes to determine ground contamination, such as in measuring americium from a plutonium ground dispersal during a cleanup. Since the sensitivity of these instruments as a function of altitude is crucial in estimating detection limits of various ground contaminations and necessary count times, a characterization of their sensitivity as a function of altitude and energy is needed. Experimental data at altitude as well as laboratory benchmarks is important to insure that the strong effects of air attenuation are modeled correctly. The modeling presented here is the first attempt at such a characterization of the equipment for flying altitudes. The sodium iodide (NaI) sensors utilized with these systems were characterized using the Monte Carlo N-Particle code (MCNP) developed at Los Alamos National Laboratory. For the fixed wing system, calculations modeled the spectral response for the 3-element NaI detector pod and High-Purity Germanium (HPGe) detector, in the relevant energy range of 50 keV to 3 MeV. NaI detector responses were simulated for both point and distributed surface sources as a function of gamma energy and flying altitude. For point sources, photopeak efficiencies were calculated for a zero radial distance and an offset equal to the altitude. For distributed sources approximating an infinite plane, gross count efficiencies were calculated and normalized to a uniform surface deposition of 1 microCi/m 2 . The helicopter calculations modeled the transport of americium-241 ( 241 Am) as this is

  3. Development of an early warning system for strong environmental pollution by measuring the activation of defined universally existing stress genes. Final report; Das Auftreten spezifischer Stressproteine bei Umweltbelastung in Chironomiden: Entwicklung eines neuen Fruehwarnsystems fuer starke Umweltbelastung durch Messung der Aktivierung definierter, universell vorkommender Stressgene bei ausgewaehlten Indikatororganismen. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Kloetzel, P.M.; Mueller, W.

    1991-12-31

    In the present pilot study we established an ELISA based detection system which allows sensitive monitoring of stress induction as a result of heavy metal pollution. The system is based on the immunological detection of the stress induced hsp70 in larvae of Chironomidae. Using this system it is possible to detect environmental pollution by heavy metals far beyond lethal toxicity values. Since only very few animals are needed the system can also be used in field tests. For poluted isopodes as Oniscus asellus for example a single animal turned out be sufficient to monitor stress induction by Pb{sup +}. The established system ought to serve as basis for a more extended study in which different animals are collected from various polluted environments and tested with respect to already induced hsp synthesis. (orig.) [Deutsch] In der vorliegenden Pilotstudie konnte ein sensitives Nachweissystem fuer die Induktion des ubiquitaeren Stresssystem durch Schwermetalle auf der Basis der immunologischen Detektion von HSP70 etabliert werden. Dieses, auf ELISA Basis arbeitende Testverfahren ermoeglicht es Schwermetallbelastungen weit unterhalb der Toxizitaetsgrenze ueber die Induktion der HSP70 Synthese in Chironomidenlarven nachzuweisen. Die Tatsache, dass nur wenige Tiere fuer eine statistische Aussage benoetigt werden laesst eine Anwendungsmoeglichkeit auch auf Freilandtiere erwarten. So reicht fuer bleibelastete Freiland-Asseln ein einziges Tier zum immunologischen Belastungsnachweis aus. Damit sind die Grundlagen fuer die zweite Phase, die Freilandphase, in welcher sowohl Freilandtiere als auch Gewaesser- und Sedimentproben von verschiedenen Standorten in die Untersuchungen miteinbezogen werden sollen; geschaffen. Es koennen jetzt Tiere aus belasteten Gewaessern bezueglich bereits erfolgter Stressproteinproduktion aber auch auf eine Neuinduzierbarkeit nach zusaetzlicher Laborbelastung untersucht werden. Ebenso koennen Labortiere auf ihre Reaktion gegenueber belasteten

  4. Measurements of vertical displacement of power station buildings using an automatic stationary hydrostatic measuring system; Anwendung des automatisierten stationaeren hydrostatischen Messsystems fuer die Aufnahme der Vertikalverschiebungen an den Objekten der Kern- und Waermekraftwerke

    Energy Technology Data Exchange (ETDEWEB)

    Lechner, J [Forschungsinstitut fuer Geodaesie, Topographie und Kartographie, Zdiby (Czechoslovakia)

    1997-12-31

    The contribution describes hydrostatic stationary measuring systems for measurements of height variations of a turbine unit. The measuring system developed at the research institute and the algorithms for calibration, measurement and evaluation are presented. Measurements were made on a 500 MW turbogenerator unit at different states of operation. (orig.) [Deutsch] Der Beitrag enthaelt eine kurze Uebersicht ueber die hydrostatischen stationaeren Messsysteme fuer das Gebiet der Messung der Hoehenaenderung eines Grossturbinentisches. Es wird das automatische stationaere hydrostatische Messsystem, das im Forschungsinstitut entwickelt wurde, der Algorithmus der Kalibrierung, der Messung und der Auswertung der Messergebnisse vorgestellt. Es wird das Messergebnis der Vertikalverschiebungen der Konstruktion des Turbogenerators mit der Leistung 500 Megawatt bei seinem verschiedenen Betriebszustand angefuehrt. (orig.)

  5. Measurements of vertical displacement of power station buildings using an automatic stationary hydrostatic measuring system; Anwendung des automatisierten stationaeren hydrostatischen Messsystems fuer die Aufnahme der Vertikalverschiebungen an den Objekten der Kern- und Waermekraftwerke

    Energy Technology Data Exchange (ETDEWEB)

    Lechner, J. [Forschungsinstitut fuer Geodaesie, Topographie und Kartographie, Zdiby (Czechoslovakia)

    1996-12-31

    The contribution describes hydrostatic stationary measuring systems for measurements of height variations of a turbine unit. The measuring system developed at the research institute and the algorithms for calibration, measurement and evaluation are presented. Measurements were made on a 500 MW turbogenerator unit at different states of operation. (orig.) [Deutsch] Der Beitrag enthaelt eine kurze Uebersicht ueber die hydrostatischen stationaeren Messsysteme fuer das Gebiet der Messung der Hoehenaenderung eines Grossturbinentisches. Es wird das automatische stationaere hydrostatische Messsystem, das im Forschungsinstitut entwickelt wurde, der Algorithmus der Kalibrierung, der Messung und der Auswertung der Messergebnisse vorgestellt. Es wird das Messergebnis der Vertikalverschiebungen der Konstruktion des Turbogenerators mit der Leistung 500 Megawatt bei seinem verschiedenen Betriebszustand angefuehrt. (orig.)

  6. System for optimizing activation measurements

    International Nuclear Information System (INIS)

    Antonov, V.A.

    1993-01-01

    Optimization procedures make it possible to perform committed activation investigations, reduce the number of experiments, make them less laborious, and increase their productivity. Separate mathematical functions were investigated for given optimization conditions, and these enable numerical optimal parameter values to be established only in the particular cases of specific techniques and mathematical computer programs. In the known mathematical models insufficient account is taken of the variety and complexity of real nuclide mixtures, the influence of background radiation, and the wide diversity of activation measurement conditions, while numerical methods for solving the optimization problem fail to reveal the laws governing the variations of the activation parameters and their functional interdependences. An optimization method was proposed in which was mainly used to estimate the time intervals for activation measurements of a mononuclide, binary or ternary nuclide mixture. However, by forming a mathematical model of activation processes it becomes possible to extend the number of nuclides in the mixture and to take account of the influence of background radiation and the diversity of the measurement alternatives. The analytical expressions and nomograms obtained can be used to determine the number of measurements, their minimum errors, their sensitivities when estimating the quantity of the tracer nuclide, the permissible quantity of interfering nuclides, the permissible background radiation intensity, and the flux of activating radiation. In the worker described herein these investigations are generalized to include spectrally resolved detection of the activation effect in the presence of the tracer and the interfering nuclides. The analytical expressions are combined into a system from which the optimal activation parameters can be found under different given conditions

  7. Moisture Forecast Bias Correction in GEOS DAS

    Science.gov (United States)

    Dee, D.

    1999-01-01

    Data assimilation methods rely on numerous assumptions about the errors involved in measuring and forecasting atmospheric fields. One of the more disturbing of these is that short-term model forecasts are assumed to be unbiased. In case of atmospheric moisture, for example, observational evidence shows that the systematic component of errors in forecasts and analyses is often of the same order of magnitude as the random component. we have implemented a sequential algorithm for estimating forecast moisture bias from rawinsonde data in the Goddard Earth Observing System Data Assimilation System (GEOS DAS). The algorithm is designed to remove the systematic component of analysis errors and can be easily incorporated in an existing statistical data assimilation system. We will present results of initial experiments that show a significant reduction of bias in the GEOS DAS moisture analyses.

  8. Integral measurement system for radon

    International Nuclear Information System (INIS)

    Garcia H, J.M.; Pena E, R.

    1996-01-01

    The Integral measurement system for Radon is an equipment to detect, counting and storage data of alpha particles produced by Radon 222 which is emanated through the terrestrial peel surface. This equipment was designed in the Special Designs Department of the National Institute of Nuclear Research. It supplies information about the behavior at long time (41 days) on each type of alpha radiation that is present into the environment as well as into the terrestrial peel. The program is formed by an User program, where it is possible to determine the operation parameters of a portable probe that contains, a semiconductor detector, a microprocessor as a control central unit, a real time clock and calendar to determine the occurred events chronology, a non-volatile memory device for storage the acquired data and an interface to establish the serial communications with other personal computers. (Author)

  9. True mean rate measuring system

    International Nuclear Information System (INIS)

    Eichenlaub, D.P.

    1980-01-01

    A digital radiation-monitoring system for nuclear power plants uses digital and microprocessor circuitry to enable rapid processing of pulse information from remote radiation monitors. The pulse rates are analyzed to determine whether new pulse-rate information is statisticaly the same as that previously received and to determine the best possible averaging time, which can be changed so that the statistical error remains below a specified level while the system response time remains short. Several data modules each process the pulse-rate information from several remote radiation monitors. Each data module accepts pulse data from each radiation monitor and measures the true average or mean pulse rate of events occurring with a Poisson distribution to determine the radiation level. They then develop digital output signals which indciate the respective radiation levels and which can be transmitted via multiplexer circuits for additional processing and display. The data modules can accept signals from remote control stations or computer stations via the multiplexer circuit to change operating thresholds and alarm levels in their memories. A check module scans the various data modules to determine whether the output signals are valid. It also acts as a redundant data module and will automatically replace an inoperative unit. (DN)

  10. Lightning magnetic field measuring system in Bogota

    OpenAIRE

    Escobar Alvarado, Oscar Fernardo

    2013-01-01

    This thesis presents the configuration and performance of a lightning radiated electromagnetic field measuring system in Bogotá Colombia. The system is composed by both magnetic and electric field measuring systems working as separated sensors. The aim of the thesis is the design and construction of a Magnetic Field Measuring System and the implementation of a whole lightning measuring system in Bogotá. The theoretical background, design process, construction and implementation of the system ...

  11. Reprodutibilidade das mensurações da espessura das tábuas ósseas na tomografia computadorizada Cone-Beam utilizando diferentes protocolos de aquisição de imagem Reproducibility of bone plate thickness measurements with Cone-Beam Computed Tomography using different image acquisition protocols

    Directory of Open Access Journals (Sweden)

    Carolina Carmo de Menezes

    2010-10-01

    Full Text Available INTRODUÇÃO: quanto menor a dimensão do voxel, maior a nitidez da imagem de tomografia computadorizada Cone-Beam (TCCB, porém, maior a dose de radiação emitida. OBJETIVOS: avaliar e comparar a reprodutibilidade da mensuração da espessura das tábuas ósseas vestibular e lingual em imagens de TCCB, utilizando diferentes protocolos de aquisição de imagem com variação da dimensão do voxel. MÉTODOS: exames de TCCB foram tomados de 12 mandíbulas humanas secas, com dimensão do voxel de 0,2; 0,3 e 0,4mm, no aparelho i-CAT Cone-Beam 3-D Dental Imaging System. No software i-CAT Viewer, foi mensurada a espessura das tábuas ósseas vestibular e lingual, em um corte axial passando 12mm acima do forame mentoniano do lado direito. A reprodutibilidade intraexaminador foi avaliada por meio da aplicação do teste t pareado. Para a comparação interexaminadores, foi utilizado o teste t independente. Os resultados foram considerados com o nível de significância de 5%. RESULTADOS: observou-se uma excelente reprodutibilidade interexaminadores para os três protocolos avaliados. A reprodutibilidade intraexaminadores foi muito boa, com exceção de algumas regiões dos dentes anteriores, que mostraram diferenças estatisticamente significativas, independentemente da dimensão do voxel. CONCLUSÃO: a mensuração da espessura das tábuas ósseas vestibular e lingual em imagens de TCCB mostrou boa precisão para exames obtidos com voxel de 0,2; 0,3 ou 0,4mm. A reprodutibilidade das mensurações na região anterior da mandíbula foi mais crítica do que na região posterior.INTRODUCTION: A smaller voxel dimension leads to greater resolution of Cone-Beam Computed Tomography (CBCT, but a greater dosage of radiation is emitted. OBJECTIVE: Assess and compare the reproducibility of buccal and lingual bone plate thickness measurements in CBCT images using different image acquisition protocols, with variations in the voxel dimension. METHODS: CBCT exams

  12. Design of mass flow rate measurement system for SST-1 superconducting magnet system

    Energy Technology Data Exchange (ETDEWEB)

    Varmora, P., E-mail: pvamora@ipr.res.in; Sharma, A.N.; Khristi, Y.; Prasad, U.; Patel, D.; Doshi, K.; Pradhan, S.

    2016-11-15

    Highlights: • Design of Venturi meter for SST-1 magnet system. • Details of Helium mass flow measurement system used in SST-1. • Instruments and measurement techniques for flow measurement. • VME based data acquisition system details and flow calculation and results from SST-1 campaigns. - Abstract: Superconducting Magnet System (SCMS) of Steady State Superconducting Tokamak – 1 (SST-1) is forced-flow cooled by a closed cycle 1.3 kW (at 4.5 K) class Helium Refrigerator cum Liquefier (HRL) system. An accurate measurement of helium mass flow rate in different coils is required to ensure the uniform cooling of the cold mass in the entire range of operating temperature (300 K to 4.5 K) and pressure (0.9–0.4 MPa). To meet this requirement, indigenously designed and fabricated venturi meters are installed on 27 different coils of SST-1 SCMS. A VME based Data Acquisition System (DAS) has been developed and used to acquire the flow measurement data from different flowmeters. The details of the design of venturi meter, its different measurement and signal conditioning components, the data acquisition system and the mass flow rate calculation method are described in this paper. The mass flow rate measurement data from cryogenic acceptance and SST-1 magnet commissioning experiments are also presented and discussed in this paper.

  13. Design of mass flow rate measurement system for SST-1 superconducting magnet system

    International Nuclear Information System (INIS)

    Varmora, P.; Sharma, A.N.; Khristi, Y.; Prasad, U.; Patel, D.; Doshi, K.; Pradhan, S.

    2016-01-01

    Highlights: • Design of Venturi meter for SST-1 magnet system. • Details of Helium mass flow measurement system used in SST-1. • Instruments and measurement techniques for flow measurement. • VME based data acquisition system details and flow calculation and results from SST-1 campaigns. - Abstract: Superconducting Magnet System (SCMS) of Steady State Superconducting Tokamak – 1 (SST-1) is forced-flow cooled by a closed cycle 1.3 kW (at 4.5 K) class Helium Refrigerator cum Liquefier (HRL) system. An accurate measurement of helium mass flow rate in different coils is required to ensure the uniform cooling of the cold mass in the entire range of operating temperature (300 K to 4.5 K) and pressure (0.9–0.4 MPa). To meet this requirement, indigenously designed and fabricated venturi meters are installed on 27 different coils of SST-1 SCMS. A VME based Data Acquisition System (DAS) has been developed and used to acquire the flow measurement data from different flowmeters. The details of the design of venturi meter, its different measurement and signal conditioning components, the data acquisition system and the mass flow rate calculation method are described in this paper. The mass flow rate measurement data from cryogenic acceptance and SST-1 magnet commissioning experiments are also presented and discussed in this paper.

  14. Indicators System for Poverty Measurement

    Directory of Open Access Journals (Sweden)

    Constantin Mitrut

    2006-10-01

    Full Text Available Poverty represents a life aspect which is focusing the attention of both the macroeconomic analysis and the international comparisons. In order to measure the level being recorded by this phenomenon, there is a system of indicators which are used in order to underline, in a correlated manner, a number of aspects which are characterizing, quality and quantity wise, the evolution of the poverty in a specific country or, to a larger extent, through comparative surveys, at international level. Despite the fact that they are not the only instrument being used within the process of comparison of the stages of social and economic development at the international level, however the poverty indicators are providing a clear significance to the worked out surveys. In fact, the very purpose of the economic activity consists of increasing welfare and, as much as possible, at least reducing, if not eradicating, the poverty. The present work is broadly presenting the methodology as well as, both theoretical and practical, the way of computing the poverty, making a synthesis of the specific used indicators.

  15. measurements by Thomson scattering system

    Indian Academy of Sciences (India)

    oirity in measuring the electron temperature (Te) and density (ne) in fusion plasma devices like tokamaks. ... by the plasma electrons is used for the measurements. .... will be in the photon integration mode and will be acquired by a computer.

  16. Alkaline earth metal, silicon, chlorine, hydrogen. A reaction system for the heterogeneous hydrodehalogenation of silicon tetrachloride to nanocrystalline silicon; Erdalkalimetall-Silicium-Chlor-Wasserstoff. Das Reaktionssystem fuer die heterogene Hydrodehalogenierung von Siliciumtetrachlorid bis zum nanokristallinen Silicium

    Energy Technology Data Exchange (ETDEWEB)

    Fiedler, Katja

    2012-02-17

    Reactions of an alkaline earth metal with a SiCl{sub 4}-H{sub 2} result in a quaternary system with a metastable quaternary phase which separates into the metal chloride and nanocrystalline silicon upon cooling. The present study was dedicated to a making a detailed characterisation of the quaternary phase. For this purpose the properties of the quaternary system were derived from those of the six binary and four ternary systems. The first ever characterisation of the surface by means of photoelectron spectroscopy was undertaken. It also proved possible for the first time to follow the formation reaction by measuring the potential difference across the reaction system. Using the results of the characterisation the author presents first steps towards identifying the formation mechanism involved. [German] Im quaternaeren System Erdalkalimetall-Silicium-Chlor-Wasserstoff bildet sich bei der Umsetzung des Metalls mit einer SiCl{sub 4}-H{sub 2}-Atmosphaere eine quaternaere Phase. Diese metastabile Phase zerfaellt beim Abkuehlen in das Metallchlorid und Silicium in nanokristalliner Form. Die vorliegende Arbeit hat sich mit der tiefergehenden Charakterisierung der quaternaeren Phase beschaeftigt. Dazu wurden die Eigenschaften des quaternaeren Systems aus den Eigenschaften der sechs binaeren und vier ternaeren Systemen abgeleitet. Die Oberflaeche wurde erstmals mit Photoelektronenspektroskopie charakterisiert. Zusaetzlich gelang erstmalig die Verfolgung der Bildungsreaktion durch Messung des Spannungsabfalls ueber das Reaktionssystem. Erste Ansaetze zur Aufklaerung des Bildungsmechanismus ausgehend von den Ergebnissen der Charakterisierung wurden zusaetzlich aufgezeigt.

  17. Calibration of Helmholtz Coils for the characterization of MEMS magnetic sensor using fluxgate magnetometer with DAS1 magnetic range data acquisition system

    Science.gov (United States)

    Ahmad, Farooq; Dennis, John Ojur; Md Khir, Mohd Haris; Hamid, Nor Hisham

    2012-09-01

    This paper presents the calibration of Helmholtz coils for the characterization of MEMS Magnetic sensor using Fluxgate magnetometer with DAS1 Magnetic Range Data Acquisition System. The Helmholtz coils arrangement is often used to generate a uniform magnetic field in space. In the past, standard magnets were used to calibrate the Helmholtz coils. A method is presented here for calibrating these coils using a Fluxgate magnetometer and known current source, which is easier and results in greater accuracy.

  18. Das ATHENA-Projekt: [

    Directory of Open Access Journals (Sweden)

    Passenheim, Renate

    2006-02-01

    Full Text Available [english] Since the winter semester of 2002/03, the Medical Faculty of the University of Heidelberg has been using the electronic learning environment ATHENA. It is the "virtual bulletin board" for the exchange and provision of information on the study of medicine within the faculty. Since 2004/05, the platform has been operated using the open source system LRN. The system is used with the focus on document management. The use of the interactive learning contents and programme takes place as a web-based support of the required attendance classes and independent study. The tools available on the platform are used within the departments for the integration of computer-assisted examination concepts, and the conducting of online course evaluations. [german] Seit dem Wintersemester 2002/03 setzt die Medizinische Fakultät Heidelberg die elektronische Lernumgebung ATHENA ein. Sie ist das "Virtuelle Schwarze Brett" für den Austausch und die Bereitstellung von Informationen zum Medizinstudium an der Fakultät. Seit 2004/05 wird die Plattform mit dem Open-Source-System .LRN betrieben. Das System wird eingesetzt mit dem Schwerpunkt der Kurs- und Dokumentenverwaltung. Die Nutzung der interaktiven Lerninhalte und -programme erfolgt als webbasierte Unterstützung der Präsenzveranstaltungen sowie im Selbststudium. Die in der Plattform verfügbaren Tools werden in den Fachbereichen zur Integration computerunterstützter Prüfungskonzepte sowie zur Durchführung von Online-Kursevaluationen eingesetzt.

  19. Mobile measurement system for wind turbines

    Energy Technology Data Exchange (ETDEWEB)

    Kildemoes Moeller, T.

    1997-06-01

    The aim of this project `Udviklingsafproevning af smaa moellevinger` has been to develop a mobile measurement system for wind turbines. The following report describes the measurement system. The project has been financed by the Danish Ministry of Energy. (au)

  20. Dosimetric system for measurement of radioactive contaminations

    International Nuclear Information System (INIS)

    Litynski, Z.; Pienkos, J.P.; Witkowski, J.; Zadrozny, S.

    1985-01-01

    A dosimetric system for personnel dosimetry and monitoring measuring a contamination without time delay and dead time is described. The system ensures many-point measurement and minimalization of background radiation influence. 1 fig. (A.S.)

  1. Application in measurements of SKODA-OZES mobile measuring system

    International Nuclear Information System (INIS)

    Grof, V.; Drab, F.; Icha, K.

    A mobile digital measuring system was built at SKODA - Energeticke strojirenstvi based on digital information system CIS 3000 with the ADT 4100 computer. The system can operate in the BCS or in the RTE-C mode. Two programs are briefly described written for the purpose of measurements. The following applications of the system were tried: testing the reactivity meter on the reactor model, demonstration measurement of the temperature of the medium and display of values on the monitor, measurement of the temperature of the lid of the pressure vessel of the WWER-440 reactor during overlaying and measurement and the adaptive control of band thickness on a KVARTO 200 rolling mill. The measurement system is expected to be used in nuclear power plants and experimental reactors. (M.D.)

  2. Brush seal performance measurement system

    OpenAIRE

    Aksoy, Serdar; Akşit, Mahmut Faruk; Aksit, Mahmut Faruk; Duran, Ertuğrul Tolga; Duran, Ertugrul Tolga

    2009-01-01

    Brush seals are rapidly replacing conventional labyrinth seals in turbomachinery applications. Upon pressure application, seal stiffness increases drastically due to frictional bristle interlocking. Operating stiffness is critical to determine seal wear life. Typically, seal stiffness is measured by pressing a curved shoe to brush bore. The static-unpressurized measurement is extrapolated to pressurized and high speed operating conditions. This work presents a seal stiffness measurement syste...

  3. The Reference Laboratory for Radon Gas Activity Concentration Measurements at PSI; Das Referenzlabor fuer Radongas-Konzentrationsmessungen am PSI

    Energy Technology Data Exchange (ETDEWEB)

    Schuler, Christoph

    1998-09-01

    Active or passive radon gas measuring instruments are exposed during intercomparison exercises in the radon chamber of the Reference Laboratory for Radon Gas Concentration Measurements at Paul Scherrer Institut: The traceability of radon gas measurements to nationally and internationally acknowledged standards is inspected in the reference atmosphere of the chamber with calibrated {sup 222}Rn activity concentration. The use of secondary standards guarantees the traceability of the radon chamber reference atmosphere. Besides the principal secondary standard, a radon gas standard (secondary standard I), a {sup 226}Ra standard solution (secondary standard II) and a {sup 222}Rn emanation standard (secondary standard III) are used. The {sup 222}Rn activity delivered by one of these standards is quantitatively transferred into a reference volume and hence converted to an activity concentration serving for the calibration of a measuring instrument transfer standard consisting of scintillation cell and counter. By this way, the transfer standard calibration is related and traceable to the internationally acknowledged primary standard laboratories National Institute of Standards and Technology, Gaithersburg, Maryland (U.S.A.) or National Physical Laboratory, Teddington, Middlesex (UK). The calibrated transfer standard is then used to calibrate the radon gas activity concentration in the radon chamber. For a single grab sampling determination of the {sup 222}Rn activity concentration in the radon chamber with the transfer standard, the estimation of Type A and Type B uncertainties yields a relative expanded uncertainty (95% confidence level) of minimum 3% for high concentration levels (10 kBqm{sup -3}) and maximum 30% for low concentration levels (0.2 kBqm{sup -3}). Extended evaluations of the reproducibility of calibration factor measurements obtained by calibration of the transfer standard with the secondary standards I, II and III show a very good reproducibility quality

  4. MiDAS

    DEFF Research Database (Denmark)

    McIlroy, Simon Jon; Kirkegaard, Rasmus Hansen; McIlroy, Bianca

    A deep understanding of the microbial communities and dynamics in wastewater treatment systems is a powerful tool for process optimization and design (Rittmann et al., 2006). With the advent of amplicon sequencing of the 16S rRNA gene, the diversity within the microbial communities can now...... web platform about the microbes in activated sludge and their associated ADs. The MiDAS taxonomy proposes putative names for each genus-level-taxon that can be used as a common vocabulary for all researchers in the field....

  5. The CDD system in computed tomographic diagnosis of diverticular disease; Das CDD-System in der computertomografischen Diagnostik der Divertikelkrankheit

    Energy Technology Data Exchange (ETDEWEB)

    Pustelnik, Daniel; Elsholtz, Fabian Henry Juergen; Hamm, Bernd; Niehues, Stefan Markus [Charite - Universitaetsmedizin, Berlin (Germany). Inst. of Radiology; Bojarski, Christian [Charite - Universitaetsmedizin, Berlin (Germany). Div. of Gastroenterology, Infectiology and Rheumatology

    2017-08-15

    Purpose cation in computed tomographic diagnosis and briefly recapitulates its targeted advantages over preliminary systems. Primarily, application of the CDD in computed tomography diagnostics is described. Differences with respect to the categories of the older systems are pointed out on the level of each CDD type using imaging examples. The presented images are derived from our institute according to the S2k criteria. Literature was researched on PubMed. Results The CDD constitutes an improvement compared to older systems for categorizing the stages of diverticular disease. It provides more discriminatory power on the descriptive-morphological level and defines as well as differentiates more courses of the disease. Furthermore, the categories translate more directly into state-of-the-art decision-making concerning hospitalization and therapy. The CDD should be applied routinely in the computed tomographic diagnosis of diverticular disease. Typical imaging patterns are presented.

  6. Delphi's new direct acting common rail injection system; Das neue Direct Acting Common Rail System von Delphi

    Energy Technology Data Exchange (ETDEWEB)

    Schoeppe, Detlev; Zuelch, Stefan; Geurts, Derk; Gris, Christian; Jorach, Rainer W. [Delphi Diesel Systems, Europe (United Kingdom)

    2009-07-01

    With the serial start of the Direct Acting Common Rail injection system with 2.000 bar Delphi Diesel Systems could supplement its product portfolio with a valuable component. In Delphi's directly propelled Common Rail injector, the Injection needle directly is set in operation with the help of a piezo-ceramic actuator instead of only controlling this with a conventional servo-hydraulic circuit indirectly. This enables a fast opening and closing of the nozzle needle possible independently from the rail pressure. The process of injection is controllable accurately at any time with the again developed two-stage needle movement amplifier. The additionally in the injector integrated fuel storage works as a 'Rail in the Injector' and improves the quality particularly during multiple injection. The injector completely works leakage-free and thereby helps to reach the future CO{sub 2} targets. The use of piezo-actuators as driving force behind the directly working injector leads to a set of requirements to the electronics. A control electronics was developed in order to head optimally the Direct Acting Injector. The sum of all advantages of the Direct Acting of CR systems enables lowest emissions with simultaneously small fuel consumption while new dimensions are reached with power density and engine torque. The authors of the contribution under consideration report on the construction, on the work principle of the Direct Acting CR system and on its performance characteristics as a basis for the premium diesel engine.

  7. Development of a quick serum IL-6 measuring system in rheumatoid arthritis.

    Science.gov (United States)

    Koyama, Kensuke; Ohba, Tetsuro; Ishii, Kentaro; Jung, Giman; Haro, Hirotaka; Matsuda, Kenichi

    2017-07-01

    Interleukin-6 (IL-6) plays a crucial role in the pathogenesis of rheumatoid arthritis (RA). Both fulfillment of remission criteria and assessment of other methods of evaluation of RA are important for preventing joint damage progression. Measurement of serum IL-6 concentrations has been reported to be useful for monitoring RA disease activity. However, it takes at least 4-5h to measure serum IL-6 concentrations using traditional methods, which limits its utility during routine assessment in daily clinical practice settings. We established a novel method that enables measurement of serum IL-6 within 24min and requires a very small blood volume. We investigated the accuracy and efficacy of this system in RA patients. One hundred fifty blood samples collected from 76 patients were measured using the two systems. We first developed the prototype of the Human IL-6 RAYFAST. Then, we examined the correlation between the prototype RAYFAST and chemiluminescent enzyme immunoassay (CLEIA) methods. Finally, we compared IL-6 concentrations and clinical parameters using both systems. The correlation between RAYFAST (x) and CLEIA (y) for IL-6 was y=0.895x-5.94, r=0.941 (p<0.0001). Serum IL-6 concentrations in RAYFAST correlated with DAS28-CRP (r=0.372, p<0.05) and DAS28-ESR (r=0.397, p<0.01). Serum IL-6 concentrations in CLEIA correlated with DAS28-CRP (r=0.313, p<0.001) and DAS28-ESR (r=0.353, p<0.001). This new cytokine quick measure system is as accurate as CLEIA methods. Serum IL-6 concentrations can be measured in 24min using the prototype RAYFAST. It might be usable in the daily clinical practice setting, thereby contributing to improved RA management. Copyright © 2017 Elsevier Ltd. All rights reserved.

  8. The antioxidative system of Norway spruce: Effects of different stress factors. Das antioxidative System der Fichte: Einfluss von verschiedenen Stressfaktoren

    Energy Technology Data Exchange (ETDEWEB)

    Schittenhelm, J. (Freiburg Univ., Inst. fuer Biologie 2, Abt. Botanik (Germany)); Westphal, S. (Freiburg Univ., Inst. fuer Biologie 2, Abt. Botanik (Germany)); Toder, S. (Freiburg Univ., Inst. fuer Biologie 2, Abt. Botanik (Germany)); Wagner, E. (Freiburg Univ., Inst. fuer Biologie 2, Abt. Botanik (Germany))

    1993-08-01

    The effects of different stress factors on the antioxidative system of 6-year-old Norway spruces of the same clone were examined. Flooding and permanent darkness had only minor effects. On the other hand drought, chilling, intense light, and very high ozone concentrations showed strong but distinct consequences. This indicates that the damages by these stress factors are due to different toxic oxygen species, and that the stress factors could produce synergistic damages under natural field conditions. (orig.)

  9. HTGR Measurements and Instrumentation Systems

    International Nuclear Information System (INIS)

    Ball, Sydney J.; Holcomb, David Eugene; Cetiner, Mustafa Sacit

    2012-01-01

    This report provides an integrated overview of measurements and instrumentation for near-term future high-temperature gas-cooled reactors (HTGRs). Instrumentation technology has undergone revolutionary improvements since the last HTGR was constructed in the United States. This report briefly describes the measurement and communications needs of HTGRs for normal operations, maintenance and inspection, fuel fabrication, and accident response. The report includes a description of modern communications technologies and also provides a potential instrumentation communications architecture designed for deployment at an HTGR. A principal focus for the report is describing new and emerging measurement technologies with high potential to improve operations, maintenance, and accident response for the next generation of HTGRs, known as modular HTGRs, which are designed with passive safety features. Special focus is devoted toward describing the failure modes of the measurement technologies and assessing the technology maturity.

  10. The accident information and management system CAIRE for real time applications. Das Stoerfall-Leitsystem CAIRE fuer Echtzeitanwendungen

    Energy Technology Data Exchange (ETDEWEB)

    Brenk, H.D.; Kluttig, H.; Witt, H. de; Kistinger, S.; Kruschel, K.P.; Knaup, A.G.

    1992-01-01

    Remote monitoring systems have increased their importance as an inherent part of environmental surveillance installations in the FRG and in other countries. The existing systems in Germany are designed to cover both, routine operation and emergency situations. They provide site specific meteorological data, gross effluent dose rates, and dose rate measurements at on-site and approximately 30 off-site locations in the vicinity of a plant. Based on such telemetric surveillance networks an advanced automatic on-line system named CAIRE (Computer Aided Response to Emergencies) has been developed as a real time emergency response tool for nuclear facilities. This tool is designed to provide decision makers with most relevant radiation exposure data of the population at risk. CAIRE allows the continuous feed-back of current measurements of environmental impacts into diagnostic calculations for bringing measurements and calculations into best correspondence. This is the main advantage of CAIRE compared to conventional emergency systems and it results in both, a consistent actual interpretation of a bulk of single measurements of dose rates and/or activity concentrations, and a more realistic set of model parameters. Subsequently these parameters are used as input data for the evaluation of actual dose commitments and projections of them by means of real-time calculation. A second advantage is a more realistic assessment of the source term if in-plant dose rate measurements are not available due to emissions out of leckages, e.g. In such cases the assessment of the source term can be based an of-plant dose rate measurements located on the ground within a source distance between 200 and 300 m. (orig./HP).

  11. Medidas de controle de erosão em estradas rurais na bacia do rio das pedras, Guarapuava-PR / Erosion control measures of rural roads in the Rio das Pedras basin, Guarapuava, Paraná (Brazil

    Directory of Open Access Journals (Sweden)

    Márcia Cristina da Cunha, ,

    2013-04-01

    Full Text Available O traçado das estradas que cortam grande número de rios e a drenagem lateral nas estradas faz com que as águas cheguem rapidamente à rede de drenagem aumentando a vazão. Disso resulta grande produção de sedimentos haja vista que algumas estradas e caminhos internos não possuem dissipadores de energia. Portanto o presente trabalho teve por objetivo analisar e discutir o sistema viário das estradas rurais da bacia do Rio das Pedras, Guarapuava-PR e a construção de caixas de contenção como medida preventiva para dissipar energia e conseqüentemente a entrada de sedimentos nos canais fluviais. No estudo utilizou-se de dados cartográficos e de campo para mensurar as estradas rurais e as caixas de contenção. Por meio da análise dos resultados constatou-se que o número de caminhos internos supera as estradas principais, que em grande parte não possui dissipadores de energia, potencializando a entrada de sedimentos nos cursos d‘água. Em dez pontos selecionados aleatoriamente verificou-se 792 cruzamentos de estradas rurais e cursos d’água. Nas estradas rurais com caixas de contenção verificou-se que em torno de 70% destas encontravam-se inativas, havendo uma deterioração em média de 10% do total de caixas de contenção mensuradas a cada dois anos.

  12. Introduction to control system performance measurements

    CERN Document Server

    Garner, K C

    1968-01-01

    Introduction to Control System Performance Measurements presents the methods of dynamic measurements, specifically as they apply to control system and component testing. This book provides an introduction to the concepts of statistical measurement methods.Organized into nine chapters, this book begins with an overview of the applications of automatic control systems that pervade almost every area of activity ranging from servomechanisms to electrical power distribution networks. This text then discusses the common measurement transducer functions. Other chapters consider the basic wave

  13. How much of our environment do we need?. MIPS - a measuring method for an ecological economy; Wieviel Umwelt braucht der Mensch?. MIPS - Das Mass fuer oekologisches Wirtschaften

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt-Bleek, F.; Klueting, R.

    1994-12-31

    This book illustrates how much of our environment we use up with the products and services associated with everyday life, how large the ecological impact of our consume society actually is; we build roads, dams, heavy goods vehicles, warehouses, factories, monocultures and rubbish tips. We take iron ore, sand, gravel, coal oil, water, air and wood from our environment in huge, ever-increasing qualities. Slag heaps, erosion and disrupted water flow are left behind. This man-made materialistic society is altering nature`s balance persistently and for the long term. This materialism is no longer ecologically sustainable. We must learn to prosper with less negative environmental impacts. The author has developed a means of measuring the intensity of environmental impact of products, processes and services, based on the material consumed to allow acurate comparisons. In this comprehensible informative book he reveals, for the first time publicly, the measure/formula by means of many practical examples and illustrations to show a way out of the crisis. (orig./UA) [Deutsch] Dieses Buch veranschaulicht, wieviel Umwelt wir fuer Produkte und Dienstleistungen des taeglichen Lebens verbrauchen, wie gross die `oekologischen Rucksaecke` unseres Konsums wirklich sind: Wir bauen Strassen, Daemme, Lastwagen, Lager, Fabriken, Supermaerkte, Legen Monokulturen und Abfalldeponien an. Aus der Umwelt holen wir Erze, Sand, Kies, Oel, Wasser, Luft und Holz in riesigen und immer wachsenden Mengen. Zurueck bleiben Abraumhalden, Erosionen und gestoerte Wasserlaeufe. Die menschengemachten Materialverschiebungen, die Stoffstroeme, veraendern die natuerlichen Balancen, nachhaltig und unaufhaltsam. Die Materialintensitaet unseres Wohlstandes ist oekologisch nicht mehr tragbar. Wir muessen lernen, Wohlstand mit weniger Umwelt zu erhalten und zu schaffen. Der Autor hat ein neues Mass (mips=Material-Intensitaet pro Serviceeinheit) entwickelt, dessen Basis der Stoffverbrauch ist und das es

  14. Radiation transmission pipe thickness measurement system

    International Nuclear Information System (INIS)

    Higashi, Yasuhiko

    2010-01-01

    Fuji Electric Systems can be measured from the outer insulation of the transmission Characteristics and radiation detection equipment had been developed that can measure pipe wall thinning in plant and running, the recruitment of another three-beam calculation method by pipe thickness measurement system was developed to measure the thickness of the pipe side. This equipment has been possible to measure the thickness of the circumferential profile of the pipe attachment by adopting automatic rotation. (author)

  15. SQUID-based measuring systems

    Indian Academy of Sciences (India)

    field produced by a given two-dimensional current density distribution is inverted using the Fourier transform technique. Keywords ... Superconducting quantum interference devices (SQUIDs) are the most sensitive detectors for measurement of ... omagnetic prospecting, detection of gravity waves etc. Judging the importance ...

  16. Circuito elétrico auxiliar para intubação das vias lacrimais Auxiliary electrical device for lacrimal system intubation

    Directory of Open Access Journals (Sweden)

    José Byron Vicente Dias Fernandes

    2000-10-01

    Full Text Available Objetivo: Apresentam num circuito elétrico auxiliar para a intubação de vias lacrimais. Método: Descreve-se o dispositivo e sua utilização em 40 pacientes com obstrução congênita ou traumática das vias lacrimais. Resultados: O estudo das características elétricas do aparelho mostrou suas vantagens em relação a outros dispositivos citados na literatura. O uso do aparelho facilitou a recuperação das sondas de Crawford em todos os pacientes. Conclusão: O CAI mostrou-se eficiente e seguro sendo que seu emprego permitiu uma rápida localização e apreensão da sonda de Crawford na cavidade nasal.Purpose: To present an auxiliary electrical circuit (CAI for lacrimal system intubation. Method: The device is described as well as its application to 40 patients with congenital and traumatic lacrimal obstruction. Results: An electrical characteristics study of CAI was performed and compared to other instruments reported in the literature, showing its advantages. Its use helped the retrieval of Crawford probes in all patients. Conclusions: CAI is safe and effective. Its use allows a quick localization and retrieval of Crawford probe even when performed by trainee physicians not familiar with lacrimal anatomy.

  17. Absolute calibration in vivo measurement systems

    International Nuclear Information System (INIS)

    Kruchten, D.A.; Hickman, D.P.

    1991-02-01

    Lawrence Livermore National Laboratory (LLNL) is currently investigating a new method for obtaining absolute calibration factors for radiation measurement systems used to measure internally deposited radionuclides in vivo. Absolute calibration of in vivo measurement systems will eliminate the need to generate a series of human surrogate structures (i.e., phantoms) for calibrating in vivo measurement systems. The absolute calibration of in vivo measurement systems utilizes magnetic resonance imaging (MRI) to define physiological structure, size, and composition. The MRI image provides a digitized representation of the physiological structure, which allows for any mathematical distribution of radionuclides within the body. Using Monte Carlo transport codes, the emission spectrum from the body is predicted. The in vivo measurement equipment is calibrated using the Monte Carlo code and adjusting for the intrinsic properties of the detection system. The calibration factors are verified using measurements of existing phantoms and previously obtained measurements of human volunteers. 8 refs

  18. Quality control of gamma radiation measuring systems

    International Nuclear Information System (INIS)

    Surma, M.J.

    2002-01-01

    The problem of quality control and assurance of gamma radiation measuring systems has been described in detail. The factors deciding of high quality of radiometric measurements as well as statistical testing and calibration of measuring systems have been presented and discussed

  19. Identification of invariant measures of interacting systems

    International Nuclear Information System (INIS)

    Chen Jinwen

    2004-01-01

    In this paper we provide an approach for identifying certain mixture representations of some invariant measures of interacting stochastic systems. This is related to the problem of ergodicity of certain extremal invariant measures that are translation invariant. Corresponding to these, results concerning the existence of invariant measures and certain weak convergence of the systems are also provided

  20. Emittance measuring system on the UNILAC

    International Nuclear Information System (INIS)

    Ehrich, A.; Glatz, J.; Strahl, P.

    A description is given of one of the beam emittance measuring systems designed for the UNILAC at GSI. The measuring system mechanics and the detector system are detailed, and the associated electronics are discussed. Computer programming and data processing and evaluation are described

  1. System tuning and measurement error detection testing

    International Nuclear Information System (INIS)

    Krejci, Petr; Machek, Jindrich

    2008-09-01

    The project includes the use of the PEANO (Process Evaluation and Analysis by Neural Operators) system to verify the monitoring of the status of dependent measurements with a view to early measurement fault detection and estimation of selected signal levels. At the present stage, the system's capabilities of detecting measurement errors was assessed and the quality of the estimates was evaluated for various system configurations and the formation of empiric models, and rules were sought for system training at chosen process data recording parameters and operating modes. The aim was to find a suitable system configuration and to document the quality of the tuned system on artificial failures

  2. Measurement system as a subsystem of the quality management system

    OpenAIRE

    Ľubica Floreková; Ján Terpák; Marcela Čarnogurská

    2006-01-01

    Each measurement system and a control principle must be based on certain facts about the system behaviour (what), operation (how) and structure (why). Each system is distributed into subsystems that provide an input for the next subsystem. For each system, start is important the begin, that means system characteristics, collecting of data, its hierarchy and the processes distribution.A measurement system (based on the chapter 8 of the standard ISO 9001:2000 Quality management system, requirem...

  3. Fundamental course of measuring. II. The electrical measuring of non-electrical parameters. Grundkurs der Messtechnik. T. 2. Das elektrische Messen nichtelektrischer Groessen

    Energy Technology Data Exchange (ETDEWEB)

    Merz, L [Technische Univ. Muenchen (F.R. Germany). Lehrstuhl und Lab. fuer Steuerungs- und Regelungstechnik

    1975-01-01

    The fundamental course of the electrical measuring of non-electrical parameters aims to fulfill the task of presenting the present knowledge on the basic measuring methods in simple language and illustrative form. The present part II deals especially with measuring methods in heat and process engineering in the industrial field. Following the introduction in part A, the techniques of electrical probes are mainly described, and it is shown which mechanical probes cannot yet be replaced by electrical ones. Part C describes the techniques of measuring transducers.

  4. Measuring situation awareness in complex systems: Comparison of measures study

    OpenAIRE

    Salmon, PM; Stanton, NA; Walker, GH; Jenkins, DP; Ladva, D; Rafferty, L; Young, MS

    2008-01-01

    Situation Awareness (SA) is a distinct critical commodity for teams working in complex industrial systems and its measurement is a key provision in system, procedural and training design efforts. This article describes a study that was undertaken in order to compare three different SA measures (a freeze probe recall approach, a post trial subjective rating approach and a critical incident interview technique) when used to assess participant SA during a military planning task. The results indi...

  5. Desenvolvimento sustentável: uma descrição das principais ferramentas de avaliação Sustainable development: presenting the main measurement methods

    Directory of Open Access Journals (Sweden)

    Hans Michael Van Bellen

    2004-06-01

    Full Text Available Desenvolvimento Sustentável: Uma Descrição das Principais Ferramentas de Avaliação Neste artigo são apresentadas as principais características de três métodos que se propõem a mensurar o grau de sustentabilidade do desenvolvimento. Este métodos foram selecionados por especialistas que atuam em diferentes esferas da sociedade e que lidam com o conceito de desenvolvimento sustentável. Os métodos descritos e analisados são o Ecological Footprint Method, o Dashboard of Sustainability e o Barometer of Sustainability.In this article are presented the main characteristics of three methods which purpose is to measure the rate of sustainability of the development. These methods were selected by specialists who operate at differents levels of the society and also deal with the concept of sustainable development. The methods described and analysed are the Ecological Footprint Method, the Dashboard of Sustainability and the Barometer of Sustainability.

  6. Bluetooth-based distributed measurement system

    International Nuclear Information System (INIS)

    Tang Baoping; Chen Zhuo; Wei Yuguo; Qin Xiaofeng

    2007-01-01

    A novel distributed wireless measurement system, which is consisted of a base station, wireless intelligent sensors and relay nodes etc, is established by combining of Bluetooth-based wireless transmission, virtual instrument, intelligent sensor, and network. The intelligent sensors mounted on the equipments to be measured acquire various parameters and the Bluetooth relay nodes get the acquired data modulated and sent to the base station, where data analysis and processing are done so that the operational condition of the equipment can be evaluated. The establishment of the distributed measurement system is discussed with a measurement flow chart for the distributed measurement system based on Bluetooth technology, and the advantages and disadvantages of the system are analyzed at the end of the paper and the measurement system has successfully been used in Daqing oilfield, China for measurement of parameters, such as temperature, flow rate and oil pressure at an electromotor-pump unit

  7. Bluetooth-based distributed measurement system

    Science.gov (United States)

    Tang, Baoping; Chen, Zhuo; Wei, Yuguo; Qin, Xiaofeng

    2007-07-01

    A novel distributed wireless measurement system, which is consisted of a base station, wireless intelligent sensors and relay nodes etc, is established by combining of Bluetooth-based wireless transmission, virtual instrument, intelligent sensor, and network. The intelligent sensors mounted on the equipments to be measured acquire various parameters and the Bluetooth relay nodes get the acquired data modulated and sent to the base station, where data analysis and processing are done so that the operational condition of the equipment can be evaluated. The establishment of the distributed measurement system is discussed with a measurement flow chart for the distributed measurement system based on Bluetooth technology, and the advantages and disadvantages of the system are analyzed at the end of the paper and the measurement system has successfully been used in Daqing oilfield, China for measurement of parameters, such as temperature, flow rate and oil pressure at an electromotor-pump unit.

  8. Bluetooth-based distributed measurement system

    Energy Technology Data Exchange (ETDEWEB)

    Tang Baoping; Chen Zhuo; Wei Yuguo; Qin Xiaofeng [Department of Mechatronics, College of Mechanical Engineering, Chongqing University, Chongqing, 400030 (China)

    2007-07-15

    A novel distributed wireless measurement system, which is consisted of a base station, wireless intelligent sensors and relay nodes etc, is established by combining of Bluetooth-based wireless transmission, virtual instrument, intelligent sensor, and network. The intelligent sensors mounted on the equipments to be measured acquire various parameters and the Bluetooth relay nodes get the acquired data modulated and sent to the base station, where data analysis and processing are done so that the operational condition of the equipment can be evaluated. The establishment of the distributed measurement system is discussed with a measurement flow chart for the distributed measurement system based on Bluetooth technology, and the advantages and disadvantages of the system are analyzed at the end of the paper and the measurement system has successfully been used in Daqing oilfield, China for measurement of parameters, such as temperature, flow rate and oil pressure at an electromotor-pump unit.

  9. Estudo comparativo das medidas manual e digital da fenda palpebral A comparative study of the manual and digital measurements of the palpebral fissure

    Directory of Open Access Journals (Sweden)

    Tânia Pereira Nunes

    2005-12-01

    Full Text Available OBJETIVO: Comparar a medida manual do comprimento vertical da fenda palpebral e sua medida obtida por meio de processamento computadorizado de imagens de indivíduos sem alterações palpebrais. MÉTODOS: Foram analisadas 102 fendas palpebrais de 51 indivíduos normais. A faixa etária variou entre 17 e 84 anos, sendo 25 (49% do sexo masculino e 26 (51% do sexo feminino. RESULTADOS: Não houve diferença estatisticamente significativa entre as medidas manuais da fenda palpebral e as obtidas por meio de processamento computadorizado de imagens. Também não se observou diferença entre ambos os sexos e a faixa etária. CONCLUSÕES: Os resultados obtidos com estes dois métodos podem ser comparados entre si devida à equivalência estatística das medidas.PURPOSE: To compare the measurement of the palpebral fissure done either manually and by computer analysis of image of individuals without lid alterations. METHODS: One hundred two palpebral fissures from 51 normal subjects have been analyzed. The patients' age ranged from 17 to 84 years, with 25 (49% males and 26 (51% females. RESULTS: There was no statistically significant difference between the measurements done either manually or by computer analysis of images, neither, when we grouped the patients by sex or age. Also we did not observe difference between males and females, and regarding age. CONCLUSIONS: The results obtained by both methods are comparable and reliable due to the statistical equivalence of the obtained measurements.

  10. Particle measurement systems and methods

    Science.gov (United States)

    Steele, Paul T [Livermore, CA

    2011-10-04

    A system according to one embodiment includes a light source for generating light fringes; a sampling mechanism for directing a particle through the light fringes; and at least one light detector for detecting light scattered by the particle as the particle passes through the light fringes. A method according to one embodiment includes generating light fringes using a light source; directing a particle through the light fringes; and detecting light scattered by the particle as the particle passes through the light fringes using at least one light detector.

  11. Traffic Management Systems Performance Measurement: Final Report

    OpenAIRE

    Banks, James H.; Kelly, Gregory

    1997-01-01

    This report documents a study of performance measurement for Transportation Management Centers (TMCs). Performance measurement requirements were analyzed, data collection and management techniques were investigated, and case study traffic data system improvement plans were prepared for two Caltrans districts.

  12. Burnup verification using the FORK measurement system

    International Nuclear Information System (INIS)

    Ewing, R.I.

    1994-01-01

    Verification measurements may be used to help ensure nuclear criticality safety when burnup credit is applied to spent fuel transport and storage systems. The FORK measurement system, designed at Los Alamos National Laboratory for the International Atomic Energy Agency safeguards program, has been used to verify reactor site records for burnup and cooling time for many years. The FORK system measures the passive neutron and gamma-ray emission from spent fuel assemblies while in the storage pool. This report deals with the application of the FORK system to burnup credit operations based on measurements performed on spent fuel assemblies at the Oconee Nuclear Station of Duke Power Company

  13. A shielded measurement system for irradiated nuclear fuel measurements

    International Nuclear Information System (INIS)

    Mosby, W.R.; Aumeier, S.E.; Klann, R.T.

    1999-01-01

    The US Department of Energy (DOE) is driving a transition toward dry storage of irradiated nuclear fuel (INF), toward characterization of INF for final disposition, and toward resumption of measurement-based material control and accountability (MC and A) efforts for INF. For these reasons, the ability to efficiently acquire radiological measurements of INF in a dry environment is important. The DOE has recently developed a guidance document proposing MC and A requirements for INF. The intent of this document is to encourage the direct measurement of INF on inventory within DOE. The guidance document reinforces and clarifies existing material safeguards requirements as they pertain to INF. Validation of nuclear material contents of non-self-protecting INF must be accomplished by direct measurement, application of validated burnup codes using qualified initial fissile content, burnup data, and age or by other valid means. The fuel units must remain intact with readable identification numbers. INF may be subject to periodic inventories with visual item accountability checks. Quantitative measurements may provide greater assurance of the integrity of INF inventories at a lower cost and with less personnel exposure than visual item accountability checks. Currently, several different approaches are used to measure the radiological attributes of INF. Although these systems are useful for a wide variety of applications, there is currently no relatively inexpensive measurement system that is readily deployable for INF measurements for materials located in dry storage. The authors present the conceptual design of a shielded measurement system (SMS) that could be used for this purpose. The SMS consists of a shielded enclosure designed to house a collection of measurement systems to allow measurements on spent fuel outside of a hot cell. The phase 1 SMS will contain 3 He detectors and ionization chambers to allow for gross neutron and gamma-ray measurements. The phase 2 SMS

  14. GPS synchronized power system phase angle measurements

    Science.gov (United States)

    Wilson, Robert E.; Sterlina, Patrick S.

    1994-09-01

    This paper discusses the use of Global Positioning System (GPS) synchronized equipment for the measurement and analysis of key power system quantities. Two GPS synchronized phasor measurement units (PMU) were installed before testing. It was indicated that PMUs recorded the dynamic response of the power system phase angles when the northern California power grid was excited by the artificial short circuits. Power system planning engineers perform detailed computer generated simulations of the dynamic response of the power system to naturally occurring short circuits. The computer simulations use models of transmission lines, transformers, circuit breakers, and other high voltage components. This work will compare computer simulations of the same event with field measurement.

  15. Measurement and control system for the ITER remote handling mock-up test

    International Nuclear Information System (INIS)

    Oka, K.; Kakudate, S.; Takiguchi, Y.; Ako, K.; Taguchi, K.; Tada, E.; Ozaki, F.; Shibanuma, K.

    1998-01-01

    The mock-up test platforms composed of full-scale remote handling (RH) equipment were developed for demonstrating remote replacement of the ITER blanket and divertor. In parallel, the measurement and control system for operating these RH equipment were constructed on the basis of open architecture with object oriented feature, aiming at realization of fully-remoted automatic operation required for ITER. This paper describes the design concept of the measurement and control system for the remote handling equipment of ITER, and outlines the measured performances of the fabricated measurement system for the remote handling mock-up tests, which includes Data Acquisition System (DAS), Visual Monitoring System (VMS) and Virtual Reality System (VRS). (authors)

  16. Automatic system for ionization chamber current measurements

    International Nuclear Information System (INIS)

    Brancaccio, Franco; Dias, Mauro S.; Koskinas, Marina F.

    2004-01-01

    The present work describes an automatic system developed for current integration measurements at the Laboratorio de Metrologia Nuclear of Instituto de Pesquisas Energeticas e Nucleares. This system includes software (graphic user interface and control) and a module connected to a microcomputer, by means of a commercial data acquisition card. Measurements were performed in order to check the performance and for validating the proposed design

  17. MiDAS 2.0: an ecosystem-specific taxonomy and online database for the organisms of wastewater treatment systems expanded for anaerobic digester groups.

    Science.gov (United States)

    McIlroy, Simon Jon; Kirkegaard, Rasmus Hansen; McIlroy, Bianca; Nierychlo, Marta; Kristensen, Jannie Munk; Karst, Søren Michael; Albertsen, Mads; Nielsen, Per Halkjær

    2017-01-01

    Wastewater is increasingly viewed as a resource, with anaerobic digester technology being routinely implemented for biogas production. Characterising the microbial communities involved in wastewater treatment facilities and their anaerobic digesters is considered key to their optimal design and operation. Amplicon sequencing of the 16S rRNA gene allows high-throughput monitoring of these systems. The MiDAS field guide is a public resource providing amplicon sequencing protocols and an ecosystem-specific taxonomic database optimized for use with wastewater treatment facility samples. The curated taxonomy endeavours to provide a genus-level-classification for abundant phylotypes and the online field guide links this identity to published information regarding their ecology, function and distribution. This article describes the expansion of the database resources to cover the organisms of the anaerobic digester systems fed primary sludge and surplus activated sludge. The updated database includes descriptions of the abundant genus-level-taxa in influent wastewater, activated sludge and anaerobic digesters. Abundance information is also included to allow assessment of the role of emigration in the ecology of each phylotype. MiDAS is intended as a collaborative resource for the progression of research into the ecology of wastewater treatment, by providing a public repository for knowledge that is accessible to all interested in these biotechnologically important systems. http://www.midasfieldguide.org. © The Author(s) 2017. Published by Oxford University Press.

  18. Superconducting property measuring system by magnetization method

    International Nuclear Information System (INIS)

    Ikisawa, K.; Mori, T.; Takasu, N.

    1988-01-01

    Superconducting property measuring system (CMS-370B) for high temperature oxide superconductor has been developed. This system adopts magnetization measurement. The superconducting properties are able to be measured automatically and continuously changing the temperature and external magnetic field. The critical current density as a function of temperature and magnetic field of high temperature superconductor YBa 2 Cu 3 O 7-y (YBCO) has been measured. This paper reports how it was confirmed that this system having the high performance and the accuracy gave the significant contribution to the superconducting material development

  19. Control measurement system in purex process

    International Nuclear Information System (INIS)

    Mani, V.V.S.

    1985-01-01

    The dependence of a bulk facility handling Purex Process on the control measurement system for evaluating the process performance needs hardly be emphasized. process control, Plant control, inventory control and quality control are the four components of the control measurement system. The scope and requirements of each component are different and the measurement methods are selected accordingly. However, each measurement system has six important elements. These are described in detail. The quality assurance programme carried out by the laboratory as a mechanism through which the quality of measurements is regularly tested and stated in quantitative terms is also explained in terms of internal and external quality assurance, with examples. Suggestions for making the control measurement system more responsive to the operational needs in future are also briefly discussed. (author)

  20. Performance measurement for information systems: Industry perspectives

    Science.gov (United States)

    Bishop, Peter C.; Yoes, Cissy; Hamilton, Kay

    1992-01-01

    Performance measurement has become a focal topic for information systems (IS) organizations. Historically, IS performance measures have dealt with the efficiency of the data processing function. Today, the function of most IS organizations goes beyond simple data processing. To understand how IS organizations have developed meaningful performance measures that reflect their objectives and activities, industry perspectives on IS performance measurement was studied. The objectives of the study were to understand the state of the practice in IS performance techniques for IS performance measurement; to gather approaches and measures of actual performance measures used in industry; and to report patterns, trends, and lessons learned about performance measurement to NASA/JSC. Examples of how some of the most forward looking companies are shaping their IS processes through measurement is provided. Thoughts on the presence of a life-cycle to performance measures development and a suggested taxonomy for performance measurements are included in the appendices.

  1. Dynamic Properties of Impulse Measuring Systems

    DEFF Research Database (Denmark)

    Pedersen, A.; Lausen, P.

    1971-01-01

    After some basic considerations the dynamic properties of the measuring system are subjected to a general examination based on a number of responses, characteristic of the system. It is demonstrated that an impulse circuit has an internal impedance different from zero, for which reason...... the interaction between the generator and the measuring circuit is of paramount importance to the voltage across the test object. Based on the measured values the determination of the applied voltage is considered....

  2. Electronic instrumentation system for pulsed neutron measurements

    International Nuclear Information System (INIS)

    Burda, J.; Igielski, A.; Kowalik, W.

    1982-01-01

    An essential point of pulsed neutron measurement of thermal neutron parameters for different materials is the registration of the thermal neutron die-away curve after a fast neutron bursts have been injected into the system. An electronic instrumentation system which is successfully applied for pulsed neutron measurements is presented. An important part of the system is the control unit which has been designed and built in the Laboratory of Neutron Parameters of Materials. (author)

  3. Influence of clouds on earth climate. Modellings, measurements, and data analyses within the framework of an interconnected project; Einfluss von Wolken auf das Klima der Erde. Modellierungen, Messungen, Datenanalysen im Rahmen eines Verbundprojektes

    Energy Technology Data Exchange (ETDEWEB)

    Grassl, H; Raschke, E

    1995-11-01

    At the beginning of the project there was considerable uncertainty as to the influence of clouds of all kinds on the energy budget of the atmosphere, the quantities and impact of aerosols, and, especially, the physics of high curl clouds. There was neither a possibility to model such cloud systems, nor did reliable measuring methods exist. This interconnected project contributed to the solution of these problems with the aim to create a solid basis of work for future climate researches. Simultaneously, measurements were carried out, satellite data analysed, aerosol data by different authors compiled and evaluated, and numerical simulations of cloud sheets carried out. (orig.) [Deutsch] Zu Beginn des Vorhabens herrschten erhebliche Unsicherheiten ueber den Einfluss von Wolken aller Arten auf den Energiehaushalt der Atmosphaere, ueber die Mengen und Wirkungen des Aerosols - und insbesondere ueber die Physik der hohen Cirren. Es gab keine Modelliermoeglichkeiten fuer solche Wolkensysteme - noch existierten zuverlaessige Messmoeglichkeiten. Das Verbundvorhaben sollte zur Loesung dieser Probleme beitragen mit dem Ziel, eine solide Arbeitsbasis fuer zukuenftige Aufgaben der Klimaforschung zu schaffen. Es wurden gleichzeitig Messungen durchgefuehrt, Satellitendaten analysiert, Aerosoldaten unterschiedlicher Autoren zusammengetragen und geprueft sowie numerische Simulationen von Wolkenfeldern durchgefuehrt. (orig.)

  4. System Entropy Measurement of Stochastic Partial Differential Systems

    Directory of Open Access Journals (Sweden)

    Bor-Sen Chen

    2016-03-01

    Full Text Available System entropy describes the dispersal of a system’s energy and is an indication of the disorder of a physical system. Several system entropy measurement methods have been developed for dynamic systems. However, most real physical systems are always modeled using stochastic partial differential dynamic equations in the spatio-temporal domain. No efficient method currently exists that can calculate the system entropy of stochastic partial differential systems (SPDSs in consideration of the effects of intrinsic random fluctuation and compartment diffusion. In this study, a novel indirect measurement method is proposed for calculating of system entropy of SPDSs using a Hamilton–Jacobi integral inequality (HJII-constrained optimization method. In other words, we solve a nonlinear HJII-constrained optimization problem for measuring the system entropy of nonlinear stochastic partial differential systems (NSPDSs. To simplify the system entropy measurement of NSPDSs, the global linearization technique and finite difference scheme were employed to approximate the nonlinear stochastic spatial state space system. This allows the nonlinear HJII-constrained optimization problem for the system entropy measurement to be transformed to an equivalent linear matrix inequalities (LMIs-constrained optimization problem, which can be easily solved using the MATLAB LMI-toolbox (MATLAB R2014a, version 8.3. Finally, several examples are presented to illustrate the system entropy measurement of SPDSs.

  5. Entropy Measurement for Biometric Verification Systems.

    Science.gov (United States)

    Lim, Meng-Hui; Yuen, Pong C

    2016-05-01

    Biometric verification systems are designed to accept multiple similar biometric measurements per user due to inherent intrauser variations in the biometric data. This is important to preserve reasonable acceptance rate of genuine queries and the overall feasibility of the recognition system. However, such acceptance of multiple similar measurements decreases the imposter's difficulty of obtaining a system-acceptable measurement, thus resulting in a degraded security level. This deteriorated security needs to be measurable to provide truthful security assurance to the users. Entropy is a standard measure of security. However, the entropy formula is applicable only when there is a single acceptable possibility. In this paper, we develop an entropy-measuring model for biometric systems that accepts multiple similar measurements per user. Based on the idea of guessing entropy, the proposed model quantifies biometric system security in terms of adversarial guessing effort for two practical attacks. Excellent agreement between analytic and experimental simulation-based measurement results on a synthetic and a benchmark face dataset justify the correctness of our model and thus the feasibility of the proposed entropy-measuring approach.

  6. Evaluation of the MADAM waste measurement system

    Energy Technology Data Exchange (ETDEWEB)

    Foster, L.A.; Wachter, J.R.; Hagan, R.C.

    1995-03-01

    The Multiple Assay Dual Analysis Measurement (MADAM) system is a combined low-level and transuranic waste assay system. The system integrates commercially available Segmented Gamma Scanner (SGS) capability with a multienergy x-ray and gamma-ray analysis to measure these two waste forms. In addition, the system incorporates a small neutron slab detector to satisfy safeguards concerns and the capability for automated high-resolution gamma-ray analysis for isotope identification. Since delivery of the system to this facility, an evaluation of the waste measurement characteristics of the system has been conducted. A set of specially constructed NIST-traceable standards was fabricated for calibration and evaluation of the low-level waste (LLW) measurement system. The measurement characteristics of the LLW assay system were determined during the evaluation, including detection limits for all isotopes of interest, matrix attenuation effects, and detector response as a function of source position. Based on these studies, several modifications to the existing analysis algorithms have been performed, new correction factors for matrix attenuation have been devised, and measurement error estimates have been calculated and incorporated into the software.

  7. Evaluation of the MADAM waste measurement system

    International Nuclear Information System (INIS)

    Foster, L.A.; Wachter, J.R.; Hagan, R.C.

    1995-01-01

    The Multiple Assay Dual Analysis Measurement (MADAM) system is a combined low-level and transuranic waste assay system. The system integrates commercially available Segmented Gamma Scanner (SGS) capability with a multienergy x-ray and gamma-ray analysis to measure these two waste forms. In addition, the system incorporates a small neutron slab detector to satisfy safeguards concerns and the capability for automated high-resolution gamma-ray analysis for isotope identification. Since delivery of the system to this facility, an evaluation of the waste measurement characteristics of the system has been conducted. A set of specially constructed NIST-traceable standards was fabricated for calibration and evaluation of the low-level waste (LLW) measurement system. The measurement characteristics of the LLW assay system were determined during the evaluation, including detection limits for all isotopes of interest, matrix attenuation effects, and detector response as a function of source position. Based on these studies, several modifications to the existing analysis algorithms have been performed, new correction factors for matrix attenuation have been devised, and measurement error estimates have been calculated and incorporated into the software

  8. INFORMATION SECURITY IN MOBILE MODULAR MEASURING SYSTEMS

    Directory of Open Access Journals (Sweden)

    A. N. Tkhishev

    2017-01-01

    Full Text Available A special aspect of aircraft test is carrying out both flight evaluation and ground operation evaluation in a structure of flying aids and special tools equipment. The specific of flight and sea tests involve metering in offshore zone, which excludes the possibility of fixed geodetically related measuring tools. In this regard, the specific role is acquired by shipbased measurement systems, in particular the mobile modular measuring systems. Information processed in the mobile modular measurement systems is a critical resource having a high level of confidentiality. When carrying out their functions, it should be implemented a proper information control of the mobile modular measurement systems to ensure their protection from the risk of data leakage, modification or loss, i.e. to ensure a certain level of information security. Due to the specific of their application it is difficult to solve the problems of information security in such complexes. The intruder model, the threat model, the security requirements generated for fixed informatization objects are not applicable to mobile systems. It was concluded that the advanced mobile modular measuring systems designed for flight experiments monitoring and control should be created due to necessary information protection measures and means. The article contains a diagram of security requirements formation, starting with the data envelopment analysis and ending with the practical implementation. The information security probabilistic model applied to mobile modular measurement systems is developed. The list of current security threats based on the environment and specific of the mobile measurement system functioning is examined. The probabilistic model of the information security evaluation is given. The problems of vulnerabilities transformation of designed information system into the security targets with the subsequent formation of the functional and trust requirements list are examined.

  9. Temperature measurement systems in wearable electronics

    Science.gov (United States)

    Walczak, S.; Gołebiowski, J.

    2014-08-01

    The aim of this paper is to present the concept of temperature measurement system, adapted to wearable electronics applications. Temperature is one of the most commonly monitored factor in smart textiles, especially in sportswear, medical and rescue products. Depending on the application, measured temperature could be used as an initial value of alert, heating, lifesaving or analysis system. The concept of the temperature measurement multi-point system, which consists of flexible screen-printed resistive sensors, placed on the T-shirt connected with the central unit and the power supply is elaborated in the paper.

  10. A dinâmica de alteração das medidas de força e o efeito posterior duradouro de treinamento em basquetebolistas submetidos ao sistema de treinamento em bloco La dinamica de la alteracion de las medidas de fuerza y el efecto posterior duradero del entrenamiento en basquetbolistas sometidos al sistema de entrenamiento en bloque Dynamics of the power measures alterations and the posterior long-lasting training effect on basketball players submitted to the block training system

    Directory of Open Access Journals (Sweden)

    Alexandre Moreira

    2004-08-01

    Full Text Available O presente estudo objetivou examinar a dinâmica das alterações da força explosiva de salto vertical (SV, força explosiva de salto horizontal (SHP e da força rápida horizontal para a perna direita (STCD e para a perna esquerda (STCE nas distintas etapas da preparação em basquetebolistas adultos submetidos ao sistema de treinamento em bloco. O grupo estudado foi composto por 12 atletas participantes do campeonato paulista da divisão principal (A1. Oito realizaram o programa de forma integral e foram incluídos na análise. Os atletas submeteram-se a uma estrutura bicíclica de preparação (primeiro macrociclo com 23 semanas e o segundo macrociclo com 19 semanas. Na estruturação do modelo, o macrociclo de treinamento foi dividido em etapa básica (cargas concentradas de força, etapa especial e etapa de competição. A etapa básica teve a duração de oito semanas, no primeiro macrociclo de treinamento, e três semanas no segundo macrociclo. Os atletas foram avaliados em oito momentos distintos do ciclo anual, caracterizando uma investigação longitudinal. Os resultados demonstraram: 1 a eficácia do sistema de treinamento em bloco no basquetebol, evidenciada pela expressão pontual do efeito posterior duradouro de treinamento (EPDT, 2 que as cargas de competição exerceram diferentes efeitos para as SV e SHP e, ainda, 3 ocorrências diversas verificadas entre STCD e STCE, demonstrando a necessidade de avaliar e analisar minuciosamente os resultados dos diferentes testes de saltos quando utilizados como parâmetros de controle dos efeitos de treinamento.El presente estudio objetivó examinar la dinámica de las alteraciones de la fuerza explosiva del salto vertical (SV, fuerza explosiva del salto horizontal (SHP y de la fuerza rápida horizontal para la pierna derecha (STCD y para la pierna izquierda (STCE en las distintas etapas de la preparación en basquetbolistas adultos sometidos al sistema de entrenamiento en bloque. El grupo

  11. A K Das

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. A K Das. Articles written in Bulletin of Materials Science. Volume 28 Issue 2 April 2005 pp 131-136 Fly Ash. Some studies on the reaction between fly ash and lime · A Basumajumdar A K Das N Bandyopadhyay S Maitra · More Details Abstract Fulltext PDF. The reaction between ...

  12. S K Das

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. S K Das. Articles written in Bulletin of Materials Science. Volume 24 Issue 4 August 2001 pp 373-378 Metals and Alloys. Evaluation of solid–liquid interface profile during continuous casting by a spline based formalism · S K Das · More Details Abstract Fulltext PDF. A numerical ...

  13. P Chaitanya Das

    Indian Academy of Sciences (India)

    P Chaitanya Das G Srinivasa Murthy C P Gopalakrishnan P C Deshmukh · More Details Fulltext PDF. Volume 9 Issue 7 July 2004 pp 77-85 Classroom. Motion of Charged Particles in Electromagnetic Fields and Special Theory of Relativity · P Chaitanya Das G Srinivasa Murthy P C Deshmukh K Satish Kumar T A Venkatesh.

  14. I M L Das

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. I M L Das. Articles written in Bulletin of Materials Science. Volume 33 Issue 4 August 2010 pp 383-390 Electrical Properties. Temperature dependence of electromechanical properties of PLZT /57/43 ceramics · A K Shukla V K Agrawal I M L Das Janardan Singh S L Srivastava.

  15. P K Das

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. P K Das. Articles written in Bulletin of Materials Science. Volume 23 Issue 4 August 2000 pp 249-253 Nitride Ceramics. Optimization of time–temperature schedule for nitridation of silicon compact on the basis of silicon and nitrogen reaction kinetics · J Rakshit P K Das.

  16. Update of PPPL's DAS-1800

    International Nuclear Information System (INIS)

    Booth, K.H.

    1976-01-01

    Demand for real-time computer assistance of experiments at PPPL has increased in volume and complexity. The PPPL data acquisition system based on an IBM-1800 has been servicing three experimental devices, ST, FM, and ATC, often concurrently. The requirements of real-time computer support, the acquisition, archiving, analysis, and display of data for these devices, are described. A presentation of the current DAS-1800 system which supports two devices, FM and ATC, includes summaries of additional experiments serviced

  17. Measurement and evaluation systems for NPP commissioning

    International Nuclear Information System (INIS)

    Elko, Marek

    2006-01-01

    Standard core monitoring and information systems are designed with an emphasis on normal operation of nuclear power plant. Their purpose is to provide necessary support for reactor operators and other operating personnel during the fuel cycle. After each fuel reloading, and to the larger extent during the plant commissioning, a variety of start-up tests need to be carried out and evaluated. Sampling periods, accuracy and communication delays of standard systems are not always suitable for test performance and evaluation. For technical and safety reasons, the access to standard monitoring and information systems is very limited. Non-Standard Measurement and Evaluation Systems are highly specialized devices designed with an emphasis on start-up tests performance and evaluation. They are capable of high frequency sampling, processing and communication of hundreds of technological signals with required accuracy and low communication delay. All technological signals needed for the test performance and evaluation are collected from various systems, concentrated in one system and fully accessible to a test leader, a reactor physicist or other users. In addition, Non-Standard Measurement and Evaluation Systems can perform other tasks like data storing and presentation, data distribution to other systems or external computers via network, reactivity calculations, etc. Structure of such systems can vary, but generally it is a mixture of two basic concepts: a mobile system and a stationary system. A basic description of hardware structure and software equipment of Non-Standard Measurement and Evaluation Systems is given in the paper (Authors)

  18. A transuranic aerosol measurement system: Preliminary results

    International Nuclear Information System (INIS)

    Prevo, C.T.; Kaifer, R.C.; Rueppel, D.W.; Delvasto, R.M.; Biermann, A.H.; Phelps, P.L.

    1986-10-01

    We have completed the design, fabrication, and assembly of a computer-based prototype system for the measurement of transuranic aerosols in the workplace and environment. This system (called WOTAMS for Workplace Transuranic Aerosol Measurement System) incorporates two detectors: (1) an in-line solid-state alpha detector that sends out an alarm the moment a transuranic release occurs, and (2) an in-vacuum detector that increases off-line-analysis sensitivity. The in-line sensitivity of the system is better than 5.0 MPC-h, and the in-vacuum sensitivity exceeds 0.5 MPC-h. 5 refs., 8 figs., 1 tab

  19. Analysis of measurement system as the mechatronics system

    Energy Technology Data Exchange (ETDEWEB)

    Giniotis, V [Institute of Geodesy, Vilnius Gediminas Technical University, Vilnius, Lithuania, Sauletekio al. 11, 10223 Vilnius-40, Lithuania, Fax: 370 5 2744 705 (Lithuania); Grattan, K T V [School of Engineering and Mathematical Sciences Electrical, Electronic and Information Eng, City University, Northampton Square, London EC1V 0HB (United Kingdom); Rybokas, M [Department of Information Technologies, Vilnius Gediminas Technical University, Sauletekio al. 11, 10223 Vilnius-40, Lithuania, Fax: 370 5 2744 705 (Lithuania); Brucas, D, E-mail: gi@ap.vtu.l, E-mail: k.t.v.grattan@city.ac.u, E-mail: MRybokas@gama.l, E-mail: domka@ktv.l, E-mail: vg@ai.vgtu.l [Department of Geodesy and Cadastre, Vilnius Gediminas Technical University, Vilnius, Lithuania Sauletekio al. 11, 10223 Vilnius-40, Lithuania, Fax: 370 5 2744 705 (Lithuania)

    2010-07-01

    The paper deals with the mechatronic arrangement for angle measuring system application. The objects to be measured are the circular raster scales, rotary encoders and coded scales. The task of the measuring system is to determine the bias of angle measuring standard as the circular scale and to use the results for the error correction and accuracy improvement of metal cutting machines, coordinate measuring machines, robots, etc. The technical solutions are given with the application of active materials for smart piezoactuators implemented into the several positions of angular measuring equipment. Mechatronic measuring system is analysed as complex integrated system and some of its elements can be used as separate units. All these functional elements are described and commented in the paper with the diagrams and graphs of errors and examples of microdisplacement devices using the mechatronic elements.

  20. Analysis of measurement system as the mechatronics system

    International Nuclear Information System (INIS)

    Giniotis, V; Grattan, K T V; Rybokas, M; Brucas, D

    2010-01-01

    The paper deals with the mechatronic arrangement for angle measuring system application. The objects to be measured are the circular raster scales, rotary encoders and coded scales. The task of the measuring system is to determine the bias of angle measuring standard as the circular scale and to use the results for the error correction and accuracy improvement of metal cutting machines, coordinate measuring machines, robots, etc. The technical solutions are given with the application of active materials for smart piezoactuators implemented into the several positions of angular measuring equipment. Mechatronic measuring system is analysed as complex integrated system and some of its elements can be used as separate units. All these functional elements are described and commented in the paper with the diagrams and graphs of errors and examples of microdisplacement devices using the mechatronic elements.

  1. Measurement system as a subsystem of the quality management system

    Directory of Open Access Journals (Sweden)

    Ľubica Floreková

    2006-12-01

    Full Text Available Each measurement system and a control principle must be based on certain facts about the system behaviour (what, operation (how and structure (why. Each system is distributed into subsystems that provide an input for the next subsystem. For each system, start is important the begin, that means system characteristics, collecting of data, its hierarchy and the processes distribution.A measurement system (based on the chapter 8 of the standard ISO 9001:2000 Quality management system, requirements defines the measurement, analysis and improvement for each organization in order to present the products conformity, the quality management system conformity guarantee and for the continuously permanent improvement of effectivity, efficiency and economy of quality management system.

  2. A system for pulse Hall effect measurements

    International Nuclear Information System (INIS)

    Orzechowski, T.; Kupczak, R.

    1975-01-01

    Measuring system for fast Hall-voltage changes in an n-type germanium sample irradiated at liquid nitrogen temperature with a high-energy electron-beam from the Van de Graaff accelerator is described. (author)

  3. Telemetric measurement system of beehive environment conditions

    Science.gov (United States)

    Walendziuk, Wojciech; Sawicki, Aleksander

    2014-11-01

    This work presents a measurement system of beehive environmental conditions. The purpose of the device is to perform measurements of parameters such as ambient temperature, atmospheric pressure, internal temperature, humidity and sound level. The measured values were transferred to the MySQL database, which is located on an external server, with the use of GPRS protocol. A website presents the measurement data in the form of tables and graphs. The study also shows exemplary results of environmental conditions measurements recorded in the beehive by hour cycle.

  4. Distance and Cable Length Measurement System

    Science.gov (United States)

    Hernández, Sergio Elias; Acosta, Leopoldo; Toledo, Jonay

    2009-01-01

    A simple, economic and successful design for distance and cable length detection is presented. The measurement system is based on the continuous repetition of a pulse that endlessly travels along the distance to be detected. There is a pulse repeater at both ends of the distance or cable to be measured. The endless repetition of the pulse generates a frequency that varies almost inversely with the distance to be measured. The resolution and distance or cable length range could be adjusted by varying the repetition time delay introduced at both ends and the measurement time. With this design a distance can be measured with centimeter resolution using electronic system with microsecond resolution, simplifying classical time of flight designs which require electronics with picosecond resolution. This design was also applied to position measurement. PMID:22303169

  5. Automated statistical modeling of analytical measurement systems

    International Nuclear Information System (INIS)

    Jacobson, J.J.

    1992-01-01

    The statistical modeling of analytical measurement systems at the Idaho Chemical Processing Plant (ICPP) has been completely automated through computer software. The statistical modeling of analytical measurement systems is one part of a complete quality control program used by the Remote Analytical Laboratory (RAL) at the ICPP. The quality control program is an integration of automated data input, measurement system calibration, database management, and statistical process control. The quality control program and statistical modeling program meet the guidelines set forth by the American Society for Testing Materials and American National Standards Institute. A statistical model is a set of mathematical equations describing any systematic bias inherent in a measurement system and the precision of a measurement system. A statistical model is developed from data generated from the analysis of control standards. Control standards are samples which are made up at precise known levels by an independent laboratory and submitted to the RAL. The RAL analysts who process control standards do not know the values of those control standards. The object behind statistical modeling is to describe real process samples in terms of their bias and precision and, to verify that a measurement system is operating satisfactorily. The processing of control standards gives us this ability

  6. Método para mensuração das angulações e inclinações das coroas dentárias utilizando modelos de gesso Measurement method for the angulation and tipping of dental crowns using plaster models

    Directory of Open Access Journals (Sweden)

    Adriano C. Trevisi Zanelato

    2006-04-01

    Full Text Available Este presente estudo teve por finalidade apresentar o desenvolvimento de um dispositivo especialmente projetado para mensurar as angulações e inclinações das coroas dentárias. Tal dispositivo foi utilizado em uma amostra de 60 indivíduos, na faixa etária de 12 a 21 anos, de ambos os gêneros. Os indivíduos apresentavam oclusão normal e nunca haviam sido submetidos a qualquer tipo de intervenção ortodôntica. Sendo assim, a partir desta amostra, estabeleceram-se os valores médios das angulações e inclinações das coroas dentárias para indivíduos brasileiros.This present study aims to present the development of a device specially designed to measure the angulation and tipping of dental crowns. Such device was used in a sample containing 60 subjects, with average age between 12 and 21 yeas of age from both genders. Subjects presented with normal occlusion and had not undergone orthodontic treatment previously. Thus, from this sample, the mean values for the angulation and tipping of dental crowns were established for brazilian subjects.

  7. The data acquisition system PHON for the detectors of the PHOENICS experiment; Das Datenerfassungssystem PHON fuer die Detektoren des PHOENICS-Experiments

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, W.

    1991-07-01

    The PHON data acquisition system for the PHOENICS experiment at the stretcher ring ELSA in Bonn and its development is described. PHON is based on a fast parallel CAMAC readout with VME front-end processors and a VAX/VMS computer, allowing c omfortable control and programming. The current configuration of the PHON system at the PHOENICS detector uses two CAMAC branches that are read out in parallel. The data is transferred to the VAX by either the ethernet (max. rate 100 kByte/sec) or a bus coupler device (max. rate 650 kByte/sec). On the VAX the data can be stored on a harddisk and analyzed by several PHON online tasks. The harddisk limits the maximum data rate to a value of approximately 180 kByte/sec. The maximum trigger rate achieved is about 150 Hz. Two kinds of user shells are realized to control the PHON system. A command shell follows the standard of the control language of the VMS operating system and a graphic user interface uses the `X Window System`. The modular structure of the PHON system and the unique kind of creation of all PHON programs makes a further development of the system easy to do. (orig.). [Deutsch] Die vorliegende Arbeit beschreibt die Entwicklung und Funktion des Datenerfassungssystems PHON. Das System basiert auf einer parallelen Auslese von CAMAC-Branchen mit VME-Front-End-Prozessoren und einem VAX/VMS-Hauptrechner, der eine komfortable Programmsteuerung und -Entwicklung erlaubt. Momentan werden an dem PHOENICS-Detektor zwei CAMAC-Branche von jeweils einem VME-Front-End-Prozessor ausgelesen. Die Daten koennen wahlweise ueber Ethernet (max. Uebertragungsrate ca. 100 kByte/sec), oder ueber einen Buskoppler (max. 650 kByte/sec) auf den Hauptrechner (VAXStation 3200) transferiert werden. Dort koennen sie auf einer Festplatte abgespeichert und von verschiedenen Analyseprozessen verarbeitet werden. In dieser Konfiguration werden Datenraten von 180 kByte/sec erzielt. Die maximale Triggerrate betraegt etwa 150 Hz. Die Steuerung des PHON-Systems

  8. SPEED ROLLER STAND MEASUREMENT SYSTEM CHECKING TECHNIQUE

    Directory of Open Access Journals (Sweden)

    Y. Zybtsev

    2011-01-01

    Full Text Available The study has shown that the accuracy of brakes checking by inertial stands depends upon the applied methods of measurement of braking parameters (stand slowing down, braking distance, brakes triggering time, current speed as well as the methods of metrological checking of measuring system canals.

  9. Measurement trends for future safeguards systems

    International Nuclear Information System (INIS)

    Baloga, S.M.; Hakkila, E.A.

    1980-01-01

    Safeguards for future commercial-scale nuclear facilities may employ three materials control and accounting concepts: classical accounting, dynamic materials balancing, and independent verification of inventories and materials balances. Typical measurement needs associated with the implementation of these concepts at high-throughput facilities are discussed. Promising measurement methods for meeting these needs are described and recent experience is cited. General directions and considerations for meeting advanced safeguards systems needs through measurement technology development over the next decade are presented

  10. CITYkeys Smart city performance measurement system

    NARCIS (Netherlands)

    Huovila, A.; Airaksinen, M.; Pinto-Seppa, I.; Piira, K.; Bosch, P.R.; Penttinen, T.; Neumann, H.M.; Kontinakis, N.

    2017-01-01

    Cities are tackling their economic, social and environmental challenges through smart city solutions. To demonstrate that these solutions achieve the desired impact, an indicator-based assessment system is needed. This paper presents the process of developing CITYkeys performance measurement system

  11. Telerobotic system performance measurement - Motivation and methods

    Science.gov (United States)

    Kondraske, George V.; Khoury, George J.

    1992-01-01

    A systems performance-based strategy for modeling and conducting experiments relevant to the design and performance characterization of telerobotic systems is described. A developmental testbed consisting of a distributed telerobotics network and initial efforts to implement the strategy described is presented. Consideration is given to the general systems performance theory (GSPT) to tackle human performance problems as a basis for: measurement of overall telerobotic system (TRS) performance; task decomposition; development of a generic TRS model; and the characterization of performance of subsystems comprising the generic model. GSPT employs a resource construct to model performance and resource economic principles to govern the interface of systems to tasks. It provides a comprehensive modeling/measurement strategy applicable to complex systems including both human and artificial components. Application is presented within the framework of a distributed telerobotics network as a testbed. Insight into the design of test protocols which elicit application-independent data is described.

  12. Internal Performance Measurement Systems: Problems and Solutions

    DEFF Research Database (Denmark)

    Jakobsen, Morten; Mitchell, Falconer; Nørreklit, Hanne

    2010-01-01

    This article pursues two aims: to identify problems and dangers related to the operational use of internal performance measurement systems of the Balanced Scorecard (BSC) type and to provide some guidance on how performance measurement systems may be designed to overcome these problems....... The analysis uses and extends N rreklit's (2000) critique of the BSC by applying the concepts developed therein to contemporary research on the BSC and to the development of practice in performance measurement. The analysis is of relevance for many companies in the Asia-Pacific area as an increasing numbers...

  13. APPROXIMATIONS TO PERFORMANCE MEASURES IN QUEUING SYSTEMS

    Directory of Open Access Journals (Sweden)

    Kambo, N. S.

    2012-11-01

    Full Text Available Approximations to various performance measures in queuing systems have received considerable attention because these measures have wide applicability. In this paper we propose two methods to approximate the queuing characteristics of a GI/M/1 system. The first method is non-parametric in nature, using only the first three moments of the arrival distribution. The second method treads the known path of approximating the arrival distribution by a mixture of two exponential distributions by matching the first three moments. Numerical examples and optimal analysis of performance measures of GI/M/1 queues are provided to illustrate the efficacy of the methods, and are compared with benchmark approximations.

  14. Computerized system for measuring cerebral metabolism

    International Nuclear Information System (INIS)

    McGlone, J.S.; Hibbard, L.S.; Hawkins, R.A.; Kasturi, R.

    1987-01-01

    A computerized stereotactic measurement system for evaluating rat brain metabolism was developed to utilize the large amount of data generated by quantitative autoradiography. Conventional methods of measurement only analyze a small percent of these data because these methods are limited by instrument design and the subjectiveness of the investigator. However, a computerized system allows digital images to be analyzed by placing data at their appropriate three-dimensional stereotactic coordinates. The system automatically registers experimental data to a standard three-dimensional image using alignment, scaling, and matching operations. Metabolic activity in different neuronal structures is then measured by generating digital masks and superimposing them on to experimental data. Several experimental data sets were evaluated and it was noticed that the structures measured by the computerized system, had in general, lower metabolic activity than manual measurements had indicated. This was expected because the computerized system measured the structure over its volume while the manual readings were taken from the most active metabolic area of a particular structure

  15. NKS MOMS. Final report. [Mobile Measurement Systems

    Energy Technology Data Exchange (ETDEWEB)

    Nilssen, J. [Norwegian Radiation Protection Authority (NRPA) (Norway); Aage, H.K. [Danish Emergency Management Agency (DEMA) (Denmark); Palsson, S.E. [Icelandic Radiation Safety Authority (IRSA) (Iceland)

    2013-02-15

    Mobile car-borne measurement systems are an important asset in early phase emergency response in all Nordic countries. However, through the development of the systems in the different countries, there are considerable differences between the systems developed. This complicates Nordic cooperation and mutual assistance in emergency situations. This project aimed to facilitate harmonization of mobile measurement systems between the Nordic countries. The project focused on harmonizing data formats, information exchange and measurement strategies. Although the work done was funded by each member, the project established a good platform for cooperation which will hopefully continue beyond the scope of the project. A two-day seminar was held in May 2012, where all participants presented the current status (equipment, methods used etc.), in addition to invited speakers presenting development within the field of mobile detection and in situ measurements. Exchange of experiences and information on different measurement systems and practises in use was an important part of the seminar. The seminar was followed up by a small workshop during the REFOX exercise in Lund, Sweden, September 2012. Exchange of measurement data from the exercise was facilitated through a workspace proveded by NRPA as part of the MOMS project. The work done in this project will be presented at the NordEx12 seminar in March 2013. (Author)

  16. Image processing system for flow pattern measurements

    International Nuclear Information System (INIS)

    Ushijima, Satoru; Miyanaga, Yoichi; Takeda, Hirofumi

    1989-01-01

    This paper describes the development and application of an image processing system for measurements of flow patterns occuring in natural circulation water flows. In this method, the motions of particles scattered in the flow are visualized by a laser light slit and they are recorded on normal video tapes. These image data are converted to digital data with an image processor and then transfered to a large computer. The center points and pathlines of the particle images are numerically analized, and velocity vectors are obtained with these results. In this image processing system, velocity vectors in a vertical plane are measured simultaneously, so that the two dimensional behaviors of various eddies, with low velocity and complicated flow patterns usually observed in natural circulation flows, can be determined almost quantitatively. The measured flow patterns, which were obtained from natural circulation flow experiments, agreed with photographs of the particle movements, and the validity of this measuring system was confirmed in this study. (author)

  17. Multichannel simultaneous magnetic induction measurement system (MUSIMITOS)

    International Nuclear Information System (INIS)

    Steffen, Matthias; Leonhardt, Steffen; Heimann, Konrad; Bernstein, Nina

    2008-01-01

    Non-contact heart and lung activity monitoring would be a desirable supplement to conventional monitoring techniques. Based on the potential of non-contact magnetic induction measurements, requirements for an adequate monitoring system were estimated. This formed the basis for the development of the presented extendable multichannel simultaneous magnetic induction measurement system (MUSIMITOS). Special focus was given to the dynamic behaviour and simultaneous multichannel measurements, so that the system allows for up to 14 receiver coils working simultaneously at 6 excitation frequencies. Moreover, a real-time software concept for online signal processing visualization in combination with a fast software demodulation is presented. Finally, first steps towards a clinical application are pointed out and technical performance as well as first in vivo measurements are presented. This paper covers some aspects previously presented in Steffen and Leonhardt (2007 Proc. 13th Int. Conf. on Electrical Bioimpedance and the 8th Conf. on Electrical Impedance Tomography, Graz 2007)

  18. The trans-unit operation management system of VEAG AG`s power plant in Jaenschwalde; Das werksuebergreifende Betriebsmanagementsystem im Kraftwerk Jaenschwalde der VEAG AG

    Energy Technology Data Exchange (ETDEWEB)

    Weidich, H.; Platzke, R.

    1997-12-31

    Jaenschwalde coal power plant consists of 3 so-called ``modules`` of 2 power blocks each. The new operation management system at Jaenschwalde power plant has greatly improved the temporal availability and quality of process data needed by its various departments. The possibilities of process data analysis and the various optional extensions are capable of integration in various ways and at reasonable cost. At present the operation management system is managed by two employees. As the job does not even fully occupy these two, they are available for other work as well. In earlier times there were instead 6 process computers whose operation and maintenance occupied 30 employees. Beside these tremendous savings in labour the system has also brought about great functional improvements in terms of the supply of process data for the power plant as a whole and also for the entire VEAG network. [Deutsch] Das Braunkohlekraftwerk Jaenschwalde besteht aus insgesamt 6 Kraftwerksbloecken, von denen jeweils 2 Kraftwerksbloecke sogenannte `Module` bilden. Die zeitliche Verfuegbarkeit und die Guete der von den Fachabteilungen benoetigten Prozessdaten ist durch das neue Betriebsmanagementsystem im Kraftwerk Jaenschwalde drastisch erhoeht worden. Die Moeglichkeiten der Prozessdatenanalyse und die individuellen Erweiterungen sind vielseitig und mit einem ueberschaubaren Aufwand integrierbar. Die Pflege des gesamten heutigen Betriebsmanagementsystems wird heute von 2 Personen durchgefuehrt, die nicht einmal 100% ihrer Arbeitszeit dafuer aufzuwenden haben, so dass sie noch Aufgaben aus anderen Bereichen erledigen koennen. Frueher wurden dagegen 30 Personen fuer die Pflege und Wartung der 6 Prozessrechner benoetigt. Neben dem Einsparungspotential wurde eine grosse funktionelle Verbesserung fuer die Bereitstellung der Prozessdaten im gesamten Kraftwerk und darueber hinaus im gesamten VEAG-Netzwerk erreicht. (orig./RHM)

  19. Linear systems a measurement based approach

    CERN Document Server

    Bhattacharyya, S P; Mohsenizadeh, D N

    2014-01-01

    This brief presents recent results obtained on the analysis, synthesis and design of systems described by linear equations. It is well known that linear equations arise in most branches of science and engineering as well as social, biological and economic systems. The novelty of this approach is that no models of the system are assumed to be available, nor are they required. Instead, a few measurements made on the system can be processed strategically to directly extract design values that meet specifications without constructing a model of the system, implicitly or explicitly. These new concepts are illustrated by applying them to linear DC and AC circuits, mechanical, civil and hydraulic systems, signal flow block diagrams and control systems. These applications are preliminary and suggest many open problems. The results presented in this brief are the latest effort in this direction and the authors hope these will lead to attractive alternatives to model-based design of engineering and other systems.

  20. A Critique of Health System Performance Measurement.

    Science.gov (United States)

    Lynch, Thomas

    2015-01-01

    Health system performance measurement is a ubiquitous phenomenon. Many authors have identified multiple methodological and substantive problems with performance measurement practices. Despite the validity of these criticisms and their cross-national character, the practice of health system performance measurement persists. Theodore Marmor suggests that performance measurement invokes an "incantatory response" wrapped within "linguistic muddle." In this article, I expand upon Marmor's insights using Pierre Bourdieu's theoretical framework to suggest that, far from an aberration, the "linguistic muddle" identified by Marmor is an indicator of a broad struggle about the representation and classification of public health services as a public good. I present a case study of performance measurement from Alberta, Canada, examining how this representational struggle occurs and what the stakes are. © The Author(s) 2015.

  1. On the optimal sampling of bandpass measurement signals through data acquisition systems

    International Nuclear Information System (INIS)

    Angrisani, L; Vadursi, M

    2008-01-01

    Data acquisition systems (DAS) play a fundamental role in a lot of modern measurement solutions. One of the parameters characterizing a DAS is its maximum sample rate, which imposes constraints on the signals that can be alias-free digitized. Bandpass sampling theory singles out separated ranges of admissible sample rates, which can be significantly lower than carrier frequency. But, how to choose the most convenient sample rate according to the purpose at hand? The paper proposes a method for the automatic selection of the optimal sample rate in measurement applications involving bandpass signals; the effects of sample clock instability and limited resolution are also taken into account. The method allows the user to choose the location of spectral replicas of the sampled signal in terms of normalized frequency, and the minimum guard band between replicas, thus introducing a feature that no DAS currently available on the market seems to offer. A number of experimental tests on bandpass digitally modulated signals are carried out to assess the concurrence of the obtained central frequency with the expected one

  2. Magnetic Field Response Measurement Acquisition System

    Science.gov (United States)

    Woodard, Stanley E.; Taylor,Bryant D.; Shams, Qamar A.; Fox, Robert L.

    2007-01-01

    This paper presents a measurement acquisition method that alleviates many shortcomings of traditional measurement systems. The shortcomings are a finite number of measurement channels, weight penalty associated with measurements, electrical arcing, wire degradations due to wear or chemical decay and the logistics needed to add new sensors. Wire degradation has resulted in aircraft fatalities and critical space launches being delayed. The key to this method is the use of sensors designed as passive inductor-capacitor circuits that produce magnetic field responses. The response attributes correspond to states of physical properties for which the sensors measure. Power is wirelessly provided to the sensing element by using Faraday induction. A radio frequency antenna produces a time-varying magnetic field used to power the sensor and receive the magnetic field response of the sensor. An interrogation system for discerning changes in the sensor response frequency, resistance and amplitude has been developed and is presented herein. Multiple sensors can be interrogated using this method. The method eliminates the need for a data acquisition channel dedicated to each sensor. The method does not require the sensors to be near the acquisition hardware. Methods of developing magnetic field response sensors and the influence of key parameters on measurement acquisition are discussed. Examples of magnetic field response sensors and the respective measurement characterizations are presented. Implementation of this method on an aerospace system is discussed.

  3. Coordinate metrology accuracy of systems and measurements

    CERN Document Server

    Sładek, Jerzy A

    2016-01-01

    This book focuses on effective methods for assessing the accuracy of both coordinate measuring systems and coordinate measurements. It mainly reports on original research work conducted by Sladek’s team at Cracow University of Technology’s Laboratory of Coordinate Metrology. The book describes the implementation of different methods, including artificial neural networks, the Matrix Method, the Monte Carlo method and the virtual CMM (Coordinate Measuring Machine), and demonstrates how these methods can be effectively used in practice to gauge the accuracy of coordinate measurements. Moreover, the book includes an introduction to the theory of measurement uncertainty and to key techniques for assessing measurement accuracy. All methods and tools are presented in detail, using suitable mathematical formulations and illustrated with numerous examples. The book fills an important gap in the literature, providing readers with an advanced text on a topic that has been rapidly developing in recent years. The book...

  4. Video integrated measurement system. [Diagnostic display devices

    Energy Technology Data Exchange (ETDEWEB)

    Spector, B.; Eilbert, L.; Finando, S.; Fukuda, F.

    1982-06-01

    A Video Integrated Measurement (VIM) System is described which incorporates the use of various noninvasive diagnostic procedures (moire contourography, electromyography, posturometry, infrared thermography, etc.), used individually or in combination, for the evaluation of neuromusculoskeletal and other disorders and their management with biofeedback and other therapeutic procedures. The system provides for measuring individual diagnostic and therapeutic modes, or multiple modes by split screen superimposition, of real time (actual) images of the patient and idealized (ideal-normal) models on a video monitor, along with analog and digital data, graphics, color, and other transduced symbolic information. It is concluded that this system provides an innovative and efficient method by which the therapist and patient can interact in biofeedback training/learning processes and holds considerable promise for more effective measurement and treatment of a wide variety of physical and behavioral disorders.

  5. Differential Measurement Periodontal Structures Mapping System

    Science.gov (United States)

    Companion, John A. (Inventor)

    1998-01-01

    This invention relates to a periodontal structure mapping system employing a dental handpiece containing first and second acoustic sensors for locating the Cemento-Enamel Junction (CEJ) and measuring the differential depth between the CEJ and the bottom of the periodontal pocket. Measurements are taken at multiple locations on each tooth of a patient, observed, analyzed by an optical analysis subsystem, and archived by a data storage system for subsequent study and comparison with previous and subsequent measurements. Ultrasonic transducers for the first and second acoustic sensors are contained within the handpiece and in connection with a control computer. Pressurized water is provided for the depth measurement sensor and a linearly movable probe sensor serves as the sensor for the CEJ finder. The linear movement of the CEJ sensor is obtained by a control computer actuated by the prober. In an alternate embodiment, the CEJ probe is an optical fiber sensor with appropriate analysis structure provided therefor.

  6. A portable nondestructive assay measurement control system

    International Nuclear Information System (INIS)

    Palmer, M.E.

    1984-01-01

    Portable nondestructive assay (NDA) of plutonium processing hoods, solvent extraction columns, glove boxes, filters, and other items is required for both nuclear materials accountability and criticality control purposes. The Plutonium Finishing Plant has hundreds of such items that require routine portable NDA measurement. Previous recordkeeping of NDA measurements consisted of boxes of papers containing results and notebooks containing notes for each item to be measured. If the notes for any item were lost, new measurement parameters had to be calculated for that item. As a result, subsequent measurements could no longer be directly compared with previous results for that item due to possible changes in measurement parameters. The new portable NDA management system keeps all the necessary information in a computerized data base. Technicians are provided with a computer-generated drawing of each item to be measured, which also contains comments, measurement points, measurement parameters, and a form for filling in the raw data. After the measurements are made, the technician uses the computer to calculate and print out the results

  7. Eddy Correlation Flux Measurement System Handbook

    Energy Technology Data Exchange (ETDEWEB)

    Cook, D. R. [Argonne National Lab. (ANL), Argonne, IL (United States)

    2016-01-01

    The eddy correlation (ECOR) flux measurement system provides in situ, half-hour measurements of the surface turbulent fluxes of momentum, sensible heat, latent heat, and carbon dioxide (CO2) (and methane at one Southern Great Plains extended facility (SGP EF) and the North Slope of Alaska Central Facility (NSA CF). The fluxes are obtained with the eddy covariance technique, which involves correlation of the vertical wind component with the horizontal wind component, the air temperature, the water vapor density, and the CO2 concentration. The instruments used are: • a fast-response, three-dimensional (3D) wind sensor (sonic anemometer) to obtain the orthogonal wind components and the speed of sound (SOS) (used to derive the air temperature) • an open-path infrared gas analyzer (IRGA) to obtain the water vapor density and the CO2 concentration, and • an open-path infrared gas analyzer (IRGA) to obtain methane density and methane flux at one SGP EF and at the NSA CF. The ECOR systems are deployed at the locations where other methods for surface flux measurements (e.g., energy balance Bowen ratio [EBBR] systems) are difficult to employ, primarily at the north edge of a field of crops. A Surface Energy Balance System (SEBS) has been installed collocated with each deployed ECOR system in SGP, NSA, Tropical Western Pacific (TWP), ARM Mobile Facility 1 (AMF1), and ARM Mobile Facility 2 (AMF2). The surface energy balance system consists of upwelling and downwelling solar and infrared radiometers within one net radiometer, a wetness sensor, and soil measurements. The SEBS measurements allow the comparison of ECOR sensible and latent heat fluxes with the energy balance determined from the SEBS and provide information on wetting of the sensors for data quality purposes. The SEBS at one SGP and one NSA site also support upwelling and downwelling PAR measurements to qualify those two locations as Ameriflux sites.

  8. Intelligent nuclear measuring system for multi detectors

    International Nuclear Information System (INIS)

    Gujgiczer, A.; Solymosi, J.; Zsille, O.; Illes, Z.; Barnabas, I.; Ranga, T.; Lakatos, T.

    1998-01-01

    The measuring system can be used for recording gamma spectra and/or experimental beta-dispersion. Several environmental samples can be examined simultaneously, and the instrument can be used in the laboratory or in the field. Low cost multichannel analyzers using NaI(Tl) or plastic scintillators are interfaced to an IBM PC/AT, which controls the measurement, data processing, and data transmission and archiving. (M.D.)

  9. High temperature hall effect measurement system design, measurement and analysis

    Science.gov (United States)

    Berkun, Isil

    A reliable knowledge of the transport properties of semiconductor materials is essential for the development and understanding of a number of electronic devices. In this thesis, the work on developing a Hall Effect measurement system with software based data acqui- sition and control for a temperature range of 300K-700K will be described. A system was developed for high temperature measurements of materials including single crystal diamond, poly-crystalline diamond, and thermoelectric compounds. An added capability for monitor- ing the current versus voltage behavior of the contacts was used for studying the influence of ohmic and non-ohmic contacts on Hall Effect measurements. The system has been primar- ily used for testing the transport properties of boron-doped single crystal diamond (SCD) deposited in a microwave plasma-assisted chemical vapor deposition (MPCVD) reactor [1]. Diamond has several outstanding properties that are of high interest for its development as an electronic material. These include a relatively wide band gap of 5.5 (eV), high thermal conductivity, high mobility, high saturation velocity, and a high breakdown voltage. For a temperature range of 300K-700K, IV curves, Hall mobilities and carrier concentrations are shown. Temperature dependent Hall effect measurements have shown carrier concentrations from below 1017cm --3 to approximately 1021 cm--3 with mobilities ranging from 763( cm2/V s) to 0.15(cm 2/V s) respectively. Simulation results have shown the effects of single and mixed carrier models, activation energies, effective mass and doping concentrations. These studies have been helpful in the development of single crystal diamond for diode applications. Reference materials of Ge and GaAs were used to test the Hall Effect system. The system was also used to characterize polycrystalline diamond deposited on glass for electrochemical applications, and Mg2(Si,Sn) compounds which are promising candidates of low-cost, light weight and non

  10. An USB-based time measurement system

    International Nuclear Information System (INIS)

    Qin Xi; Liu Shubin; An Qi

    2010-01-01

    In this paper,we report the electronics of a timing measurement system of PTB(portable TDC board), which is a handy tool based on USB interface, customized for high precision time measurements without any crates. The time digitization is based on the High Performance TDC Chip (HPTDC). The real-time compensation for HPTDC outputs and the USB master logic are implemented in an ALTERA's Cyclone FPGA. The architecture design and logic design are described in detail. Test of the system showed a time resolution of 13.3 ps. (authors)

  11. Size and velocity measurements in combustion systems

    International Nuclear Information System (INIS)

    Levy, Y.; Timnat, Y.M.

    1986-01-01

    Two-phase flow measurements for size and velocity determination in combustion systems are discussed: the pedestal technique and phase Doppler anemometry (PDA) are described in detail. The experimental apparatus for the pedestal method includes the optical laser-Doppler anemometry (LDA) package and the electronic data acquisition system. The latter comprises three channels for recording the Doppler frequency, and the pedestal amplitude as well as the validation pulse. Results of measurements performed in a dump combustor, into which kerosene droplets were injected, are presented. The principle of the PDA technique is explained and validation experiments, using latex particles, are reported. Finally the two methods are compared

  12. Walking beam pumping unit system efficiency measurements

    International Nuclear Information System (INIS)

    Kilgore, J.J.; Tripp, H.A.; Hunt, C.L. Jr.

    1991-01-01

    The cost of electricity used by walking beam pumping units is a major expense in producing crude oil. However, only very limited information is available on the efficiency of beam pumping systems and less is known about the efficiency of the various components of the pumping units. This paper presents and discusses measurements that have been made on wells at several Shell locations and on a specially designed walking beam pump test stand at Lufkin Industries. These measurements were made in order to determine the overall system efficiency and efficiency of individual components. The results of this work show that the overall beam pumping system efficiency is normally between 48 and 58 percent. This is primarily dependent on the motor size, motor type, gearbox size, system's age, production, pump size, tubing size, and rod sizes

  13. Displacement measurement system for linear array detector

    International Nuclear Information System (INIS)

    Zhang Pengchong; Chen Ziyu; Shen Ji

    2011-01-01

    It presents a set of linear displacement measurement system based on encoder. The system includes displacement encoders, optical lens and read out circuit. Displacement read out unit includes linear CCD and its drive circuit, two amplifier circuits, second order Butterworth low-pass filter and the binarization circuit. The coding way is introduced, and various parts of the experimental signal waveforms are given, and finally a linear experimental test results are given. The experimental results are satisfactory. (authors)

  14. Measurement system for SSRF pulsed magnets

    International Nuclear Information System (INIS)

    Peng Chengcheng; Gu Ming; Liu Bo; Ouyang Lianhua

    2007-01-01

    This paper describes the magnetic field measurement system for pulsed magnets in SSRF. The system consists of magnetic probes, analog active integrator, oscilloscope, stepper motor and a controller. An application program based on LabVIEW has been developed as main control unit. After the magnetic field mapping of a septum magnet prototype, it is verified that the test results accord with the results of theoretical calculation and computer simulation. (authors)

  15. Confiabilidade das medidas de espessura central da córnea com Orbscan II e paquímetro ultra-sônico Reliability of corneal thickness measurements by Orbscan II and ultrasound pachymeter

    Directory of Open Access Journals (Sweden)

    Adamo Lui Netto

    2005-02-01

    Full Text Available OBJETIVO: Avaliar a confiabilidade das medidas de espessura central de córnea comparando o Orbscan II com o paquímetro ultra-sônico. MÉTODOS: Foi realizado estudo retrospectivo de 134 olhos, por meio do levantamento de prontuários de 67 pacientes avaliados entre o período de janeiro a junho de 2001. Foram avaliados o sexo, idade, acuidade visual com a melhor correção, refração e medidas de espessura central corneal pelo paquímetro ultra-sônico e Orbscan II. Os dados paquimétricos foram submetidos à análise do teste t pareado e as diferenças consideradas significativas se pPURPOSE: To access the reliability of corneal thickness measurements by Orbscan II and ultrasound pachymeter. METHODS: A retrospective study of 134 eyes from 67 normal subjects between January and June 2001 was obtained. Sex, age, visual acuity, refractive error and corneal thickness measurements by Orbscan II and ultrasound pachymetry were evaluated. All results were analyzed by the paired t test (p<0.05. RESULTS: Sixty-seven subjects, 34 (50.7% female and 33 (49.3% male, with a mean age of 32.44±9.98 were evaluated. The mean of spherical equivalent was -2.68±2.62. The mean corneal thickness was 534.81±34.45 with the Orbscan II system and 535.00±29.53 with the ultrasound pachymeter, values that were not significantly different (p=0.8922. The correlation coefficient between both instruments was 0.8774, and it is effective. CONCLUSIONS: Both methods are similar showing good correlation. In this study, the Orbscan II showed reliability, and this tool is extremely useful to evaluate subjects regarding refractive surgery.

  16. Quantum system lifetimes and measurement perturbations

    International Nuclear Information System (INIS)

    Najakov, E.

    1977-05-01

    The recently proposed description of quantum system decay in terms of repeated measurement perturbations is modified. The possibility of retarded reductions to a unique quantum state, due to ineffective localization of the decay products at initial time measurements, is simply taken into account. The exponential decay law is verified again. A modified equation giving the observed lifetime in terms of unperturbed quantum decay law, measurement frequency and reduction law is derived. It predicts deviations of the observed lifetime from the umperturbed one, together with a dependence on experimental procedures. The influence of different model unperturbed decay laws and reduction laws on this effect is studied

  17. Measurement techniques of LC display systems

    Science.gov (United States)

    Kosmowski, Bogdan B.; Becker, Michael E.; Neumeier, Juergen

    1993-10-01

    The strong increase of applications of liquid crystal displays in various areas (measuring, medical equipment, automotive, telecommunication, office, etc.) has forced the demand for the adequate specification of the LCDs performances. The optical, electro-optical and spectral properties of LCDs are strongly dependent on viewing direction, electrical driving conditions, illumination and temperature. All these quantities have to be precisely controlled, when one of them is varied, the resulting optical response of the object is recorded. In this paper we present measuring methods proposed for LCD panels and the computer controlled measuring system (DMS) for their evaluation.

  18. Characteristics of a simple blackbody measurement system

    International Nuclear Information System (INIS)

    Fu, C.; Anger, N.H.; Kaehms, R.; Jaeger, K.B.

    1988-01-01

    An axially symmetric blackbody (BB) measurement system with a circular aperture and a circular detector is considered. The BB can be of a right circular conical shape, a right cylindrical shape, or a combination of these two shapes. Assuming that the BB is ideal, the power received by the detector is calculated. 8 references

  19. ASUPT Automated Objective Performance Measurement System.

    Science.gov (United States)

    Waag, Wayne L.; And Others

    To realize its full research potential, a need exists for the development of an automated objective pilot performance evaluation system for use in the Advanced Simulation in Undergraduate Pilot Training (ASUPT) facility. The present report documents the approach taken for the development of performance measures and also presents data collected…

  20. Distance Measures for Information System Reengineering

    NARCIS (Netherlands)

    Poels, G.; Viaene, S.; Dedene, G.; Wangler, B.; Bergman, L.

    2000-01-01

    We present an approach to assess the magnitude and impact of information system reengineering caused by business process change. This approach is based on two concepts: object-oriented business modeling and distance measurement. The former concept is used to visualize changes in the business layer

  1. SIMS: The SLAC Industrial Measurement System

    International Nuclear Information System (INIS)

    Bell, B.

    1990-01-01

    Kern was the first survey company to market an Industrial Measurement System when it released ECDS (Electronic Coordinate Determination System) in the mid-1980s. Originally written for the PDP-11, a version was later released for the PC (ECDS-PC). SLAC purchased this system in 1986 and immediately began to use it for the alignment of the SLC (Stanford Linear Collider). Although ECDS enabled SLAC to perform tasks with a speed never before achieved, they experienced limitations in the software. Since Kern proved unresponsive and SLAC was unable to purchase the source code for any amount of money, they set about writing their own portions of code. They first wrote a system of menus tailored for their specific alignment tasks, and disabled much of the ECDS menu structure. Due to dissatisfaction with the ECDS bundle adjustment program, they wrote their own bundle adjustment in 1988. A further step towarad having their own complete IMS was to develop a data capture program, a task which has been underway since the beginning of this year. They do not yet have data analysis features that are fully integrated, but they do have stand-alone packages that have been written at SLAC. When they first started tinkering with ECDS there was no intention of developing a complete system, but they now have all the elements of such a system - SIMS, the SLAC Industrial Measurement System

  2. Blade Vibration Measurement System for Unducted Fans

    Science.gov (United States)

    Marscher, William

    2014-01-01

    With propulsion research programs focused on new levels of efficiency and noise reduction, two avenues for advanced gas turbine technology are emerging: the geared turbofan and ultrahigh bypass ratio fan engines. Both of these candidates are being pursued as collaborative research projects between NASA and the engine manufacturers. The high bypass concept from GE Aviation is an unducted fan that features a bypass ratio of over 30 along with the accompanying benefits in fuel efficiency. This project improved the test and measurement capabilities of the unducted fan blade dynamic response. In the course of this project, Mechanical Solutions, Inc. (MSI) collaborated with GE Aviation to (1) define the requirements for fan blade measurements; (2) leverage MSI's radar-based system for compressor and turbine blade monitoring; and (3) develop, validate, and deliver a noncontacting blade vibration measurement system for unducted fans.

  3. Improvement of Ultrasonic Distance Measuring System

    Directory of Open Access Journals (Sweden)

    Jiang Yu

    2018-01-01

    Full Text Available This paper mainly introduces a kind of ultrasonic distance measuring system with AT89C51 single chip as the core component. The paper expounds the principle of ultrasonic sensor and ultrasonic ranging, hardware circuit and software program, and the results of experiment and analysis.The hardware circuit based on SCM, the software design adopts the advanced microcontroller programming language.The amplitude of the received signal and the time of ultrasonic propagation are regulated by closed loop control. [1,2]The double closed loop control technology for amplitude and time improves the measuring accuracy of the instrument. The experimental results show that greatly improves the measurement accuracy of the system.

  4. Multi-scale biomedical systems: measurement challenges

    International Nuclear Information System (INIS)

    Summers, R

    2016-01-01

    Multi-scale biomedical systems are those that represent interactions in materials, sensors, and systems from a holistic perspective. It is possible to view such multi-scale activity using measurement of spatial scale or time scale, though in this paper only the former is considered. The biomedical application paradigm comprises interactions that range from quantum biological phenomena at scales of 10-12 for one individual to epidemiological studies of disease spread in populations that in a pandemic lead to measurement at a scale of 10+7. It is clear that there are measurement challenges at either end of this spatial scale, but those challenges that relate to the use of new technologies that deal with big data and health service delivery at the point of care are also considered. The measurement challenges lead to the use, in many cases, of model-based measurement and the adoption of virtual engineering. It is these measurement challenges that will be uncovered in this paper. (paper)

  5. System for measuring radioactivity of labelled biopolymers

    International Nuclear Information System (INIS)

    Gross, V.

    1980-01-01

    A system is described for measuring radioactivity of labelled biopolymers, comprising: a set of containers adapted for receiving aqueous solutions of biological samples containing biopolymers which are subsequently precipitated in said containers on particles of diatomite in the presence of a coprecipitator, then filtered, dissolved, and mixed with a scintillator; radioactivity measuring means including a detection chamber to which is fed the mixture produced in said set of containers; an electric drive for moving said set of containers in a stepwise manner; means for proportional feeding of said coprecipitator and a suspension of diatomite in an acid solution to said containers which contain the biological sample for forming an acid precipitation of biopolymers; means for the removal of precipitated samples from said containers; precipitated biopolymer filtering means for successively filtering the precipitate, suspending the precipitate, dissolving the biopolymers mixed with said scintillator for feeding of the mixture to said detection chamber; a system of pipelines interconnecting said above-recited means; and said means for measuring radioactivity of labelled biopolymers including, a measuring cell arranged in a detection chamber and communicating with said means for filtering precipitated biopolymers through one pipeline of said system of pipelines; a program unit electrically connected to said electric drive, said means for acid precipatation of biopolymers, said means for the removal of precipitated samples from said containers, said filtering means, and said radioactivity measuring device; said program unit adapted to periodically switch on and off the above-recited means and check the sequence of the radioactivity measuring operations; and a control unit for controlling the initiation of the system and for selecting programs

  6. Automated System of Area Radiation Measurement (ASARM)

    International Nuclear Information System (INIS)

    Hernandez G, J.

    2013-10-01

    The realized activities in nuclear facilities involve the determination of the presence of ionizing radiation fields in the workspaces. The instruments designed to detect and to measure these radiation fields provide useful information (specific type of radiation, intensity, etc.) to take the appropriate radiological protection measures, with the purpose of reducing to the minimum the workers exposition and the people in general. The radiological protection program of Reactor TRIGA Mark III contains the instructions and procedures to implement a periodic radiological monitoring, surveillance, rising of contamination levels, type and number of the instruments required for the radiological monitoring of areas and personal. The ana logical monitoring system model Rms II used to detect and measuring exposition speed and neutron radiation fields in several areas of the installation, provides the information in a logarithmic scale measurer of 4 or 5 decades located in a shelf where the previously mentioned measurement channels are centralized. Also inside the reactor monitoring system are two monitors of radioactive material concentration in the air: The particles continuous monitor and the gaseous effluents monitor which present the referred information of the diverse detectors through ana logical readers. These monitors when operating with an ana logical indication does not present the possibility to generate historical files electronically of each monitor previously mentioned neither to generate visual and audible indications of the alarms. This work presents the Automated System of Area Radiation Measurement which potentiated the functionality of the area monitors for gamma and neutron radiation, as well as of the particles continuous monitor and the gaseous effluents of reactor TRIGA Mark III, when being developed a computer system that captures in real time the information of all the monitors, generating this way an electronic binnacle, a visual and audible alarm

  7. Fully automated system for pulsed NMR measurements

    International Nuclear Information System (INIS)

    Cantor, D.M.

    1977-01-01

    A system is described which places many of the complex, tedious operations for pulsed NMR experiments under computer control. It automatically optimizes the experiment parameters of pulse length and phase, and precision, accuracy, and measurement speed are improved. The hardware interface between the computer and the NMR instrument is described. Design features, justification of the choices made between alternative design strategies, and details of the implementation of design goals are presented. Software features common to all the available experiments are discussed. Optimization of pulse lengths and phases is performed via a sequential search technique called Uniplex. Measurements of the spin-lattice and spin-spin relaxation times and of diffusion constants are automatic. Options for expansion of the system are explored along with some of the limitations of the system

  8. Measuring the Balance Control System – Review

    Directory of Open Access Journals (Sweden)

    Jitka Jančová

    2008-01-01

    Full Text Available Past studies of postural control during standing have employed wide range of procedures including the outcome measures use to quantify postural control, the duration of the sample collected, sampling frequency and methods for data processing. Due to these differences there remains little, if any, common grounds for comparisons between studies to establish a concrete understanding of the features and bouns which characterize normal healthy postural control. This article deals with terms such as reliability and repeatability of stabilometric measurements, stabilometric data quantification and analysis. To clear up those terms is suggested, by the author of this paper, very important. The stabilometric measurements remain, nevertheless, different when dealing with aging adults. Though, we notes some alterations of the aging systems, this article is not entirely dedicated to the seniors population. Measurements of COP and technical notes remain the main axis of present paper.

  9. Modern systems for environmental radioactivity measurements

    International Nuclear Information System (INIS)

    Cimpean, A.; Borodeanu, C.

    1995-01-01

    The system for environmental radioactivity measurements with automatic data transmission represents a better solution for nuclear safety assurance. The 'intelligent probe' will be of real use for surveying the environmental radioactivity. The probes work independently. They measure the dose rate and store the data in their internal memory. Many such probes can be spread all over a large area. They are able to measure dose rate from the background level up to high catastrophic levels. A central computer 'asks' periodically the probes to send their stored data. This computer stores the data from many probes over a long time. It can show in 'windows' manner the dose rate from any probe (either in a numerical or graphical way), the position on a map of every probe and the corresponding results of the measurements. In can alert, if an alarm threshold is crossed or it can print on a printer the data for any single probe. (author)

  10. Market delineation and system competition. The 'Bedarfsmarktkonzept' on trial; Marktabgrenzung und Systemwettbewerb. Das Bedarfsmarktkonzept auf dem Pruefstand

    Energy Technology Data Exchange (ETDEWEB)

    Vahrenholt, Oliver

    2011-07-01

    The fundamental research question of this thesis is whether, and under conditions, competitive constraints arising out of competition between systems should be reflected in antitrust market delineation. In order to answer this question, it is necessary to understand the function of market delineation in antitrust law. This is the first research question the thesis addresses. The function of market delineation is intrinsically tied to the concept of market power. Market power and its possible negative effects on total welfare and especially on consumer welfare serve as the central legitimation for governmental intervention into the free play of market forces. In order to see how system competition fits into this free play of market forces and how market power can be established in light of these constraining forces, the central economic mechanism of system competition have to be understood. This leads to the second research question to be answered by this dissertation. The final, central question raised and answered in this thesis is how can market delineation perform its task in the presence of system competition forces, and which concepts are most suitable for accomplishing this end. A concrete concept - devised for the needs of ''everyday'' antitrust practice - is given at the end of this work. And, with this concept, the research goal is achieved: to constructively criticize the Bedarfsmarktkonzept as a market delineation instrument in cases of system competition.

  11. Health risk air-conditioning system; Insufficient maintenance increases the risk of illness. Gesundheitsrisiko Klimaanlagen; Unzureichende Wartung erhoeht das Erkrankungsrisiko

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    1994-01-01

    In Germany every fifth employee who works in air-conditioned rooms complains about headache, an increased proneness to colds and influenza infections as well as allergic reactions. These troubles are often caused by the insufficient maintenance of air-conditioning systems. At present only 15% of the estimated annual demand for maintenance of space hvac-systems is actually carried out. Problematic in case of air-conditioning systems are the so-called air washers used for air humidification which can become an ideal cultur medium for microorganisms. A second problematic area are the often very dirty filters. But health risks can be avoided with regular expert maintenance alone. As first step an analysis of the causes of faults is proposed. (BWI)

  12. The SPS Individual Bunch Measurement System

    CERN Document Server

    Guerrero, A; Jones, R; Savioz, J J

    2001-01-01

    The Individual Bunch Measurement System (IBMS) allows the intensity of each bunch in an LHC batch to be the measured both in the PS to SPS transfer lines and in the SPS ring itself. The method is vased on measuring the peak and valley of the analogue signal supplied by a Fast Beam Current Transformer at a frequency of 40 MHz. A 12 bit acquisition system is required to obtain a 1% resolution for the intensity range of 5X10`9 to 1.7X10`11 protons per bunch, corresponding to the pilot and ultimate LHC bunch intensities. The acquisition selection and external trigger adjustment system is driven by the 200MHz RF, which is distributed using a single-mode fibre-optic link. A local oscilloscope, controlled via a GPIB interface, allows the remote adjustment of the timing signals. The low-level software consists of a real-time task and a communication server run on a VME Power PC, which is accessed using a graphical user interface. This paper describes the system as a whole and presents some recent uses and results fro...

  13. System 800xA - a control system for the next generation of power plants; System 800xA - Das Leitsystem der naechsten Kraftwerksgeneration

    Energy Technology Data Exchange (ETDEWEB)

    Bruns, H. [ABB AG, Mannheim (Germany); Lauxtermann, S. [ABB AG, Minden (Germany)

    2006-07-01

    The system 800 x A developed by ABB is a power plant control system that is capable of combining the latest technologies in this field with best-practice solutions and integrating the I and C equipment already installed in a plant. System 800 x A offers plant owners a future-oriented integration platform for process control and sub-station control systems on the basis of the new IEC 61850 standard. Through optimised integration and networking of information in combination with direct and context-sensitive information access, decision-taking processes and the analysis of disturbances are speeded up considerably. Consistent data structures, ranging from field data to plant management data, and a simplified system configuration can reliably lower the system operating costs and increase operational reliability for a long time. This consistent technology can integrate turbine automation, unit automation, and all sorts of control functions and thus create single-source automation solutions that are highly harmonised and easy to handle. (orig.)

  14. The TUeV Bayern's ECV crash system. Das ECV-Crashsystem des TUeV Bayern

    Energy Technology Data Exchange (ETDEWEB)

    Hupfer, P.; Richter, R.; Wech, L.

    1992-05-01

    In order to obtain more realistic crash test results, TUeV Bayern has developed the ECV Crash Technology (Eletronically Controlled Vehicle), in which the vehicle is driven by its own engine and automatically steered. Further advantages of this system are the high precision and flexibility of the crash configuration and its mobility. The driverless operation of the vehicle is realized by a microprocessor-equiped control unit, which activates steering system, throttle, brake and clutch. The desired course of the vehicle is predetermined by the pilot cable. Through this cable low frequency alternating current is flowing. (orig./HW).

  15. PETROBRAS Transportes (TRANSPETRO) contingency plan system; Metodologia SIE (Sistema Informatizado de Emergencia) aplicada no gerenciamento das contingencias

    Energy Technology Data Exchange (ETDEWEB)

    Berardinelli, Ricardo; Mendonca, Daniela [TRANSPETRO - PETROBRAS Transportes, Rio de Janeiro, RJ (Brazil). Coordenacao de Seguranca, Saude e Meio Ambiente de Dutos e Terminais; Morais, Lucia B.; Carvalho, Marcelo Tilio M. de [Pontificia Univ. Catolica do Rio de Janeiro, RJ (Brazil). Dept. de Informatica. Grupo de Tecnologia em Computacao Grafica (TECGRAF)

    2005-07-01

    This paper describes the PETROBRAS Transportes Emergency Response System, which was designed to improve the response to emergency situations. The plans are defined based on an evaluation of the organization of the emergency teams, the communication procedures, characterization of the installations, definition of accidental scenarios, environmental sensitivity maps; simulation of oil spill trajectories and dispersion behavior; geographical data of the area surrounding the installations; other conventional data related to the installations, including equipment available and the InfoPAE system. Plans include several scenarios as oil spills, gas, fire, explosion, hazardous materials which can be applied to terminals and pipelines. (author)

  16. Eddy Correlation Flux Measurement System (ECOR) Handbook

    Energy Technology Data Exchange (ETDEWEB)

    Cook, DR

    2011-01-31

    The eddy correlation (ECOR) flux measurement system provides in situ, half-hour measurements of the surface turbulent fluxes of momentum, sensible heat, latent heat, and carbon dioxide (CO2) (and methane at one Southern Great Plains extended facility (SGP EF) and the North Slope of Alaska Central Facility (NSA CF). The fluxes are obtained with the eddy covariance technique, which involves correlation of the vertical wind component with the horizontal wind component, the air temperature, the water vapor density, and the CO2 concentration.

  17. Slot Antenna for Wireless Temperature Measurement Systems

    DEFF Research Database (Denmark)

    Acar, Öncel; Jakobsen, Kaj Bjarne

    2016-01-01

    This paper presents a novel clover-slot antenna for a surface-acoustic-wave sensor based wireless temperature measurement system. The slot is described by a parametric locus curve that has the shape of a clover. The antenna is operated at high temperatures, in rough environments, and has a 43......% fractional bandwidth at the 2.4 GHz ISM-band. The slot antenna has been optimized for excitation by a passive chip soldered onto it. Measurement results are compared with simulation results and show good agreements....

  18. Electric Field Quantitative Measurement System and Method

    Science.gov (United States)

    Generazio, Edward R. (Inventor)

    2016-01-01

    A method and system are provided for making a quantitative measurement of an electric field. A plurality of antennas separated from one another by known distances are arrayed in a region that extends in at least one dimension. A voltage difference between at least one selected pair of antennas is measured. Each voltage difference is divided by the known distance associated with the selected pair of antennas corresponding thereto to generate a resulting quantity. The plurality of resulting quantities defined over the region quantitatively describe an electric field therein.

  19. Internet for energy. Trends in automation of electrical power systems; Das Internet der Energie. Trends in der Automatisierung von Energienetzen

    Energy Technology Data Exchange (ETDEWEB)

    Rehtanz, Christian [Technische Univ. Dortmund (Germany). Lehrstuhl fuer Energiesysteme und Energiewirtschaft; Wietfeld, Christian [Technische Univ. Dortmund (Germany). Lehrstuhl fuer Kommunikationsnetze

    2009-07-01

    Transeuropean electricity markets and the integration of renewable energy sources make the process of electrical power systems more and more complex. The information, communication and control technologies have to deal with these challenges. New trends and solutions will be introduced in the following article. (orig.)

  20. The use potential of aquifer thermal energy storage systems in Canada; Das Anwendungspotential fuer Aquiferwaermespeichersysteme in Kanada

    Energy Technology Data Exchange (ETDEWEB)

    Cruickshanks, F. [Environment Canada, Dartmouth, ON (Canada); Morofski, E. [Government Services Canada, Ottawa, ON (Canada). Technology RD and D

    1994-12-31

    This paper offers a brief overview of the historical and technical aspects of aquifer thermal energy storage and its use potential in commercial buildings in Canada. Aquifer thermal energy storage systems are now attractive both for new commercial buildings in Canada and for some already existing ones. This holds true especially of the Atlantic region, where fuel costs are rising and electric power rates vary according to the time of day. The simple pay-back period for ATES systems is between zero and five years. The economic aspects of the use of ATES systems in buildings are pointed out. (orig./BWI) [Deutsch] Dieser Beitrag gibt eine kurze Uebersicht der historischen und technischen Aspekte der Waermespeicherung in Aquiferen und deren Verwendungspotential in kommerziellen Gebaeuden in Kanada. Aquiferwaermespeicherungssysteme sind nunmehr attraktiv sowohl fuer neue als auch fuer manche bereits bestehenden kommerziellen Gebaeude in Kanada. Dies gilt insbesondere fuer die atlantische Region wegen der dort steigenden Kosten fuer Brennstoffe und tageszeitabhaengigen fuer elektrischen Strom. Die einfache Amortisationszeit fuer ATES-Systeme liegt zwischen null und fuenf Jahren. Die wirtschaftlichen Gesichtspunkte des Einsatzes von ATES-Systemen in kommerziellen Gebaeuden werden angefuehrt. (orig./BWI)

  1. Thermodynamics of Weakly Measured Quantum Systems.

    Science.gov (United States)

    Alonso, Jose Joaquin; Lutz, Eric; Romito, Alessandro

    2016-02-26

    We consider continuously monitored quantum systems and introduce definitions of work and heat along individual quantum trajectories that are valid for coherent superposition of energy eigenstates. We use these quantities to extend the first and second laws of stochastic thermodynamics to the quantum domain. We illustrate our results with the case of a weakly measured driven two-level system and show how to distinguish between quantum work and heat contributions. We finally employ quantum feedback control to suppress detector backaction and determine the work statistics.

  2. Noncontacting Optical Measurement And Inspection Systems

    Science.gov (United States)

    Asher, Jeffrey A.; Jackson, Robert L.

    1986-10-01

    Product inspection continues to play a growing role in the improvement of quality and reduction of scrap. Recent emphasis on precision measurements and in-process inspection have been a driving force for the development of noncontacting sensors. Noncontacting sensors can provide long term, unattended use due to the lack of sensor wear. Further, in applications where, sensor contact can damage or geometrically change the part to be measured or inspected, noncontacting sensors are the only technical approach available. MTI is involved in the development and sale of noncontacting sensors and custom inspection systems. This paper will review the recent advances in noncontacting sensor development. Machine vision and fiber optics sensor systems are finding a wide variety of industrial inspection applications. This paper will provide detailed examples of several state-of-the-art applications for these noncontacting sensors.

  3. High-quality heating systems still need advertising. Reflections; Alle Truempfe fuer die Heizungstechnik. Doch das Gute verkauft sich nicht von selbst

    Energy Technology Data Exchange (ETDEWEB)

    Genath, B.

    2001-03-01

    New buildings must be plannted in accordance with the new German Energy Conservation Ordinance. Innovations by the heating industry are required. [German] Was ist zu tun? Nachdem die Energieeinsparverordnung das Bundeskabinett passiert hat und sowohl an den Bundesrat gegangen ist als auch auf das Plazet aus Bruessel wartet, muss nun eiligst die Branche ihre Hausaufgaben machen. Denn es wird hoechstens noch ein Jahr vergehen, bis Haeuser nach den verschiedenen Varianten der Verordnung geplant werden muessen. Nur: Die Papiere regeln das Ziel, nicht den Weg. (orig.)

  4. The new active driving safety system ESP (Electronic Stability Program) developed by Mercedes Benz; Das neue aktive Fahrsicherheitssystem ESP (Elektronisches-Stabilitaets-Programm) von Mercedes-Benz

    Energy Technology Data Exchange (ETDEWEB)

    Paul, J. [Mercedes-Benz AG, Stuttgart (Germany); Klinkner, W. [Mercedes-Benz AG, Stuttgart (Germany); Mueller, A. [Mercedes-Benz AG, Stuttgart (Germany)

    1995-12-31

    The new electronic stability program (ESP) offered by Mercedes-Benz as a world novelty in March 1995 is the consequent further development of the anti-lock braking system and the anti-slip control. An improved assessment of the handling properties by a steering wheel sensor, a yaw velocity sensor, a brake pressure sensor and a hydraulic system that brakes each wheel individually and is controlled by a complex logic allow the supervision and the active control of the cross-dynamic handling properties up to limiting ranges. The handling of the vehicle in critical situations (e.g. strong oversteering or understeering) has been considerably improved. (orig.) [Deutsch] Das neue elektronische-Stabilitaets-Programm (ESP), von Mercedes-Benz ab Maerz 1995 als Weltneuheit angeboten, stellt eine konsequente Weiterentwicklung des Antiblockier-Bremssystems (ABS) und der Antriebsschlupfregelung (ASR) dar. Eine erweiterte Fahrzustandserfassung durch Lenkradwinkel-, Giergeschwindigkeit- und Bremsdrucksensor, eine Hydraulik, die jedes Rad individuell abbremsen kann, angesteuert durch eine komplexe Regelungslogik, erlauben erstmals eine Ueberwachung und aktive Regelung des querdynamischen Fahrzustands bis in den Grenzbereich. Die Beherrschbarkeit des Fahrzeugs wird in kritischen Situationen (z.B. starkes Ueber- oder Untersteuern) entscheidend verbessert. (orig.)

  5. Designing an accurate system for temperature measurements

    Directory of Open Access Journals (Sweden)

    Kochan Orest

    2017-01-01

    Full Text Available The method of compensation of changes in temperature field along the legs of inhomogeneous thermocouple, which measures a temperature of an object, is considered in this paper. This compensation is achieved by stabilization of the temperature field along the thermocouple. Such stabilization does not allow the error due to acquired thermoelectric inhomogeneity to manifest itself. There is also proposed the design of the furnace to stabilize temperature field along the legs of the thermocouple which measures the temperature of an object. This furnace is not integrated with the thermocouple mentioned above, therefore it is possible to replace this thermocouple with a new one when it get its legs considerably inhomogeneous.. There is designed the two loop measuring system with the ability of error correction which can use simultaneously a usual thermocouple as well as a thermocouple with controlled profile of temperature field. The latter can be used as a reference sensor for the former.

  6. Nuclear instrumentation for the industrial measuring systems

    International Nuclear Information System (INIS)

    Normand, S.

    2010-01-01

    This work deals with nuclear instrumentation and its application to industry, power plant fuel reprocessing plant and finally with homeland security. The first part concerns the reactor instrumentation, in-core and ex-core measurement system. Ionization Uranium fission chamber will be introduced with their acquisition system especially Campbell mode system. Some progress have been done on regarding sensors failure foresee. The second part of this work deals with reprocessing plant and associated instrumentation for nuclear waste management. Proportional counters techniques will be discussed, especially Helium-3 counter, and new development on electronic concept for reprocessing nuclear waste plant (one electronic for multipurpose acquisition system). For nuclear safety and security for human and homeland will be introduce. First we will explain a new particular approach on operational dosimetric measurement and secondly, we will show new kind of organic scintillator material and associated electronics. Signal treatment with real time treatment is embedded, in order to make neutron gamma discrimination possible even in solid organic scintillator. Finally, the conclusion will point out future, with most trends in research and development on nuclear instrumentation for next years. (author) [fr

  7. Waste assay measurement integration system user interface

    International Nuclear Information System (INIS)

    Mousseau, K.C.; Hempstead, A.R.; Becker, G.K.

    1995-01-01

    The Waste Assay Measurement Integration System (WAMIS) is being developed to improve confidence in and lower the uncertainty of waste characterization data. There are two major components to the WAMIS: a data access and visualization component and a data interpretation component. The intent of the access and visualization software is to provide simultaneous access to all data sources that describe the contents of any particular container of waste. The visualization software also allows the user to display data at any level from raw to reduced output. Depending on user type, the software displays a menuing hierarchy, related to level of access, that allows the user to observe only those data sources s/he has been authorized to view. Access levels include system administrator, physicist, QA representative, shift operations supervisor, and data entry. Data sources are displayed in separate windows and presently include (1) real-time radiography video, (2) gamma spectra, (3) passive and active neutron, (4) radionuclide mass estimates, (5) total alpha activity (Ci), (6) container attributes, (7) thermal power (w), and (8) mass ratio estimates for americium, plutonium, and uranium isotopes. The data interpretation component is in the early phases of design, but will include artificial intelligence, expert system, and neural network techniques. The system is being developed on a Pentium PC using Microsoft Visual C++. Future generations of WAMIS will be UNIX based and will incorporate more generically radiographic/tomographic, gamma spectroscopic/tomographics, neutron, and prompt gamma measurements

  8. Das, Prof. Gobardhan

    Indian Academy of Sciences (India)

    Das, Prof. Gobardhan Ph.D. (Imtech), FNASc. Date of birth: 10 December 1966. Specialization: Immunology, Infectious Diseases, Cell Biology Address: Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110 067, U.T.. Contact: Office: (011) 2670 4559, 2673 8824. Residence: (0124) 424 2351

  9. Ikea das Rendas

    OpenAIRE

    Bergman, Aeron; Salinas, Alejandra

    2008-01-01

    FIALENA fabric design by Anna Svanfeldt for IKEA of Sweden. It took Maria da Guia 2 months to reproduce the Ikea pattern using traditional Portuguese improvised knots. 2008 Installasjon i Museu das Rendas, Vila do Conde, Portugal, 01.09.2008 - 01.10.2008. Sponsor: City of Villa do Conde.

  10. Das Kapital e Eu

    Directory of Open Access Journals (Sweden)

    David Schweickart

    2017-11-01

    Full Text Available A partir da sua própria biografia, o autor ensaia sobre sua interpretação de Das Kapital, de Karl Marx. Argumenta sobre a exploração capitalista, sobre o fetichismo e aponta para o problema central do capitalismo: a falta de controle dos concernidos sobre a produção de produtor úteis.

  11. Das, Prof. Saumitra

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 2009 Section: General Biology. Das, Prof. Saumitra Ph.D. (Calcutta), FNASc, FNA. Date of birth: 20 January 1962. Specialization: Molecular Virology, Molecular Biology and Cell Biology Address: Microbiology and Cell Biology Department, Indian Institute of Science, Bengaluru 560 012, Karnataka

  12. Measurement system for ultrahigh temperature thermophysical properties

    International Nuclear Information System (INIS)

    Fukuyama, Hiroyuki

    2015-01-01

    Properties and Simulations Probed with Electromagnetic Containerless Technique (PROSPECT) is a measurement system for ultrahigh temperature thermophysical properties to be able to measure thermophysical properties with high precision by combining AC magnetic field (electromagnetic levitation device) and DC magnetic field (superconducting magnet) to realize the static floating state of metallic melt, in other words, the state of suppressing the surface vibration of droplets, translational motion, and internal convection. The electromagnetic levitation method is a method to obtain a floating force due to the Lorentz force generated by the interaction between high-frequency current flowing in the coil and the induced current generated in a sample, and to heat/melt the sample with the Joule heat generated by its induced current. This paper roughly explains the element technologies of PROSPECT with a focus on the laser modulation calorimetry (laser periodic heating method), normal spectral emissivity measurement method, density measurement, and surface tension measurement method. Furthermore, as the application of PROSPECT to new research deployment, it introduces the observation of phase separation structure in the supercooled solidification structure of Cu-Co alloy. (A.O.)

  13. Management information systems for controlling in energy supply companies; Management-Informationssysteme fuer das Controlling im EVU

    Energy Technology Data Exchange (ETDEWEB)

    Crombach, U. [CFI Controlling- und Fuehrungsinformationssysteme GmbH, Bodenheim (Germany); Ruf, J. [CFI Controlling- und Fuehrungsinformationssysteme GmbH, Bodenheim (Germany)

    1997-01-27

    Todays management information systems (MIS) allow flexible use of all data existing in the company for management and controlling. Instead of using fixed (coded) reports the user can easily decide about the presented data, either consolidated or in detail. Using well known Excel as front end for presentation and analysis provides easy access for all users. The authors describe how a data model for the MIS can be designed and stored in the `data warehouse` from the various sources in the company. A few typical charts are presented. (orig.) [Deutsch] Moderne Managementinformationssysteme (MIS) ermoeglichen die flexibel Nutzung aller im Unternehmen anfallenden Informationen fuer Fuehrung und Controlling. Anders als bei festgefuegten (programmierten) Auswertungen bestimmt der Nutzer frei ueber die dargestellten Informationen. Diese koennen einfach und schnell aus allen vorhandenen Datenquellen des Unternehmens zusammengefuehrt werden. Durch Verwendung der weit verbreiteten Tabellenkalkulationsprogramme, z.B. MS-Excel, als Bedieneroberflaeche, ist die Bedienung einfach erlernbar. Die Verfasser zeigen an einem Beispiel, wie ein solches MIS als Datenmodell konzipiert, einfach konfiguriert und schliesslich als Controllinginstrument flexible herangezogen werden kann. (orig.)

  14. Improvement an enterprises marketing performance measurement system

    Directory of Open Access Journals (Sweden)

    Stanković Ljiljana

    2013-01-01

    Full Text Available Business conditions in which modern enterprises do business are more and more complex. The complexity of the business environment is caused by activities of external and internal factors, which imposes the need for the turn in management focus. One of key turns is related to the need of adaptation and development of new business performance evaluation systems. The evaluation of marketing contribution to business performance is very important however a complex task as well. The marketing theory and practice indicates the need for developing adequate standards and systems for evaluating the efficiency of marketing decisions. The better understanding of marketing standards and ways that managers use is a very important factor that affects the efficiency of strategic decision-making. The paper presents the results of researching the way in which managers perceive and apply marketing performance measures. The data that were received through the field research sample enabled the consideration of the managers' attitudes on practical ways of implementing marketing performance measurement and identifying measures that managers imply as used mostly in business practice.

  15. EAST machine assembly and its measurement system

    International Nuclear Information System (INIS)

    Wu, S.T.

    2005-01-01

    The EAST (HT-7U) superconducting tokamak consists of a superconducting poloidal field magnet system, a toroidal field magnet system, a vacuum vessel and in-vessel components, thermal shields and a cryostat vessel. The main parts of the machine have been delivered to ASIPP (Institute of Plasma Physics, Chinese Academy of Sciences) successionally from 2003. For its complicated constitution and precise requirement, a reasonable assembly procedure and measurement technique should be defined carefully. Before the assembly procedure, a reference frame has been set up with reference fiducial targets on the wall of the test hall by an industrial measurement system. After the torus of TF coils is formed, a new reference frame will be set up from the position of the TF torus. The vacuum vessel with all inner parts will be installed with reference of the new reference frame. The big size and mass of components, special configuration of the superconducting machine with tight installation tolerances of the HT-7U (EAST) machine result in complicated assembly procedure. The procedure had begun with the installation of the support frame and the base of cryostat vessel last year. In this paper, the requirements of the assembly precise for some key components of the machine are described. The reference frame for the assembly and maintenance is explained. The assembly procedure is introduced

  16. Automatic radiation measuring system connected with GPS

    International Nuclear Information System (INIS)

    Tanigaki, Minoru

    2014-01-01

    The most serious nuclear disaster in Japan has broken out at Fukushima Daiichi Nuclear Power Plant due to Great East Japan Earthquake. Prompt and exact mapping of the contamination is of great importance for radiation protection and for the environment restoration. We have developed radiation survey systems KURAMA and KURAMA-2 for rapid and exact measurement of radiation dose distribution. The system is composed of a mobile radiation monitor and the computer in office which is for the storage and visualization of the data. They are connected with internet and are operated for continuous radiation measurement while the monitor is moving. The mobile part consists of a survey meter, an interface to transform the output of the survey meter for the computer, a global positioning system, a computer to process the data for connecting to the network, and a mobile router. Thus they are effective for rapid mapping of the surface contamination. The operation and the performance of the equipment at the site are presented. (J.P.N.)

  17. Automatic actinometric system for diffuse radiation measurement

    Science.gov (United States)

    Litwiniuk, Agnieszka; Zajkowski, Maciej

    2015-09-01

    Actinometric station is using for measuring solar of radiation. The results are helpful in determining the optimal position of solar panels relative to the Sun, especially in today's world, when the energy coming from the Sun and other alternative sources of energy become more and more popular. Polish climate does not provide as much energy as in countries in southern Europe, but it is possible to increase the amount of energy produced by appropriate arrangement of photovoltaic panels. There is the possibility of forecasting the amount of produced energy, the cost-effectiveness and profitability of photovoltaic installations. This implies considerable development opportunities for domestic photovoltaic power plants. This article presents description of actinometric system for diffuse radiation measurement, which is equipped with pyranometer - thermopile temperature sensor, amplifier AD620, AD Converter ADS1110, microcontroller Atmega 16, SD card, GPS module and LCD screen.

  18. Transmission Quality Measurements in DAB+ Broadcast System

    Directory of Open Access Journals (Sweden)

    Gilski Przemysław

    2017-12-01

    Full Text Available In the age of digital media, delivering broadcast content to customers at an acceptable level of quality is one of the most challenging tasks. The most important factor is the efficient use of available resources, including bandwidth. An appropriate way of managing the digital multiplex is essential for both the economic and technical issues. In this paper we describe transmission quality measurements in the DAB+ broadcast system. We provide a methodology for analysing parameters and factors related with the efficiency and reliability of a digital radio link. We describe a laboratory stand that can be used for transmission quality assessment on a regional and national level.

  19. The Technology of Measurement Feedback Systems.

    Science.gov (United States)

    Bickman, Leonard; Kelley, Susan Douglas; Athay, Michele

    2012-12-01

    Usual care in the community is far from optimal. Sufficient evidence exists that dropout rates are significant, treatment is effective for only a small proportion of clients, and that the translation of evidence-based treatments to the real world is problematic. Technology has been shown to be helpful in health care in improving the effectiveness of treatment. A relatively new technology being used in mental health is measurement feedback systems (MFSs). MFSs are particularly applicable to couple and family psychology (CFP) because of its ability to provide information on the multiple perspectives involved in treatment. The Contextualized Feedback Systems tm (CFS®), developed at Vanderbilt University is used as an example of what can be accomplished with an MFS. The advantages and limitations of this technology are described as well as the anticipated reimbursement requirements that mental health services will need.

  20. Fiber-optic voltage measuring system

    Science.gov (United States)

    Ye, Miaoyuan; Nie, De-Xin; Li, Yan; Peng, Yu; Lin, Qi-Qing; Wang, Jing-Gang

    1993-09-01

    A new fibre optic voltage measuring system has been developed based on the electrooptic effect of bismuth germanium oxide (Bi4Ge3O12)crystal. It uses the LED as the light source. The light beam emitted from the light source is transmitted to the sensor through the optic fibre and the intensity of the output beam is changed by the applied voltage. This optic signal is transmitted to the PIN detector and converted to an electric signal which is processed by the electronic circuit and 8098 single chip microcomputer the output voltage signal obtained is directly proportional to the applied voltage. This paper describes the principle the configuration and the performance parameters of the system. Test results are evaluated and discussed.

  1. Dual-goniometer system for channeling measurements

    International Nuclear Information System (INIS)

    Linden, M.; Hellborg, R.

    1986-03-01

    This paper describes a two-goniometer system for obtaining azimuthally averaged measurements in channeling experiments. The system consists of a tri-axial master goniometer and a bi-axial goniometer. Both goniometers are controlled by stepping motors. The alignment goniometer has a target holder, which permits the beam spot to be placed anywhere in a 6 x 6 mm 2 square on the target crystal without loosing the target orientation. The design, construction and operation of the goniometers as well as stepping motor control units and programs for computer control of the goniometers are described. Two control programs cover orientation of the target crystal and a number of other normal experimental conditions. (author)

  2. Medição precisa das forças de aceleração em cabos Precise measurement of acceleration forces acting on cables

    Directory of Open Access Journals (Sweden)

    Edgar Moraes do Nascimento

    1986-10-01

    Full Text Available Certos problemas do uso do cinto de segurança ainda não foram resolvidos, sendo importante a determinação precisa das forças nos cabos. Existem vários métodos que, da maneira que são aplicados, são de pouca precisão. Com o objetivo de suspender essa imprecisão são apresentados três métodos e aperfeiçoado um outro de determinação da força exercida no cabo. Um desses métodos aplica-se a países subdesenvolvidos.Certain problems related to the use of safety belts remain unsolved, important among them being the exact determination of forces acting on cables. Various methods of calculation, severely limited because of the way in which they are applied, are presented. Three methods with a view to surpassing these limits are presented and another for the calculation of the forces acting on a cable is perfected. One of these methods is applicable in developing countries.

  3. NBS measurement system for natural argon-37

    International Nuclear Information System (INIS)

    Currie, L.A.; Lindstrom, R.M.

    1973-01-01

    A project to determine the cosmic-ray production rate and the natural levels of 35-day half-life 37 Ar in the atmosphere has been underway at the National Bureau of Standards for about the past year. The prime objective of this project is to determine the spatial dependence of 37 Ar production in the atmosphere, and the spatial distribution of the naturally-produced 37 Ar (observed concentrations). The results of this study are to be used, in cooperation with L. Machta (National Oceanographic and Atmospheric Administration), to derive information about atmospheric mixing. The purpose of this communication, however, is to present a general description of the various components of the measurement system. As the lowest concentrations of interest are but approximately equal to 10 -3 dpm ( 37 Ar)/l-Ar, very high sensitivity measurement techniques are required. Among the techniques which we have adopted are: quantitative separation of the noble gases from about 1 m 3 of air, using a CaC 2 reactor; gas chromatographic separation of the argon fraction; isotopic enrichment (by a factor of approximately equal to 100) of purified argon; use of specially selected low-level gas proportional counters together with massive shielding and anticoincidence meson cancellation; and the application of pulse discrimination based upon both amplitude (energy) and pulse shape. Finally, on-line computer techniques are being applied for data acquisition and system control

  4. PENGELOLAAN DAS CITARUM BERKELANJUTAN

    OpenAIRE

    kurniasih, nia

    2011-01-01

    Sungai citarum merupakan sungai utama di DAS Citarum yang dimanfaatkan untuk berbagai keperluan, tidak hanya digunakan oleh 7 kabupaten dan 2 Kota di Jawa Barat tetapi juga sebagai sumber air baku air minum Kota Jakarta. Penurunan kualitas maupun kuantitas Sungai Citarum sudah sangat memprihatinkan, kondisi tersebut diakibatkan oleh kesadaran masyarakat dan pemerintah yang belu optimal. Peraturan-peraturan Pemerintah sudah ada tetapi pelaksanaan dilapangan belum maksimal dibarengi penegakan h...

  5. Das DNA-Puzzle

    Science.gov (United States)

    Kirchner, Stefan

    Im Jahre 1953 wurde von James Watson und Francis Crick erstmalig der strukturelle Aufbau der sogenannten DNA (Desoxyribonukleinsäure) beschrieben, welche das Erbgut jedes Lebewesens enthält. Der wesentliche Teil des Erbguts wird dabei durch eine sehr lange Folge der vier Basen Adenin (A), Cytosin (C), Guanin (G) und Thymin (T) codiert. Seit einigen Jahren ist es möglich, die Folge der vier Basen zu einer gegebenen DNA zu bestimmen. Biologen bezeichnen diesen Vorgang als Sequenzierung.

  6. Flavor release measurement from gum model system.

    Science.gov (United States)

    Ovejero-López, Isabel; Haahr, Anne-Mette; van den Berg, Frans; Bredie, Wender L P

    2004-12-29

    Flavor release from a mint-flavored chewing gum model system was measured by atmospheric pressure chemical ionization mass spectroscopy (APCI-MS) and sensory time-intensity (TI). A data analysis method for handling the individual curves from both methods is presented. The APCI-MS data are ratio-scaled using the signal from acetone in the breath of subjects. Next, APCI-MS and sensory TI curves are smoothed by low-pass filtering. Principal component analysis of the individual curves is used to display graphically the product differentiation by APCI-MS or TI signals. It is shown that differences in gum composition can be measured by both instrumental and sensory techniques, providing comparable information. The peppermint oil level (0.5-2% w/w) in the gum influenced both the retronasal concentration and the perceived peppermint flavor. The sweeteners' (sorbitol or xylitol) effect is less apparent. Sensory adaptation and sensitivity differences of human perception versus APCI-MS detection might explain the divergence between the two dynamic measurement methods.

  7. Measurement and control systems using nuclear radiation

    International Nuclear Information System (INIS)

    Melo, Jose Altino Tupinamba; Madi Filho, Tufic

    2007-01-01

    Non-destructive Assay is applied to machines and components quality tests. These elements would not have a good performance if they were conceived without concern about the mechanical project quality, used materials, manufacture processes and inspection and maintenance methodology. In this work, a measure and control system of non destructive processes was developed, using a radioactive source with a defined energy in function of the material to be analyzed. This system involves: interface of input/output (I/O) (hardware) and graphical interface (software). In the non destructive analysis, it is made the comparison of the signal proceeding from the sensor with a signal preset (set point) or analogical signal of reference (Base Line), which is adjusted in the I/O interface. Analyzed the signal, the system will make the decision: to reject or to accept the analyzed material. The I/O interface is implemented by electronic equipment with a MCS51. The purpose of this interface is to supply conditions to exchange information, using serial RS232, between the sensor and the microcomputer. The graphical interface (software) is written in visual C++ language. (author)

  8. Setup of a LED light-pulser system for the OLYMPUS experiment; Aufbau eines LED-Lichtpulsersystems fuer das OLYMPUS-Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Rehman, Waqaas

    2011-12-15

    The aim of this thesis consists in the construction and test of an external light-calibration system based on light-emitting diodes (LED) for the application at the symmetric Moller/Bhabha (SYMB) luminosity monitor. In chapter 2 the theoretical foundations of the OLYMPUS experiment, especially of the SYMB luminosity monitor are explained. Thereafter in chapter 3 the details of the setup of the OLYMPUS experiment and the fundamental properties of the SYMB detectors are discussed. In chapter 4 the whole concept of the LED light-pulser system is treated. In chapter 5 then test measurements with the ready LED light-pulser system are described. Thereby the light source shall be optimized in the shape that thereafter light pulses with short signal width are producable. Also different measurements for the unique characterization of the systems are performed. In chapter 6 light-intensity measurements during the operation of the LED light-pulser system are described.

  9. Extreme Low Frequency Acoustic Measurement System

    Science.gov (United States)

    Shams, Qamar A. (Inventor); Zuckerwar, Allan J. (Inventor)

    2017-01-01

    The present invention is an extremely low frequency (ELF) microphone and acoustic measurement system capable of infrasound detection in a portable and easily deployable form factor. In one embodiment of the invention, an extremely low frequency electret microphone comprises a membrane, a backplate, and a backchamber. The backchamber is sealed to allow substantially no air exchange between the backchamber and outside the microphone. Compliance of the membrane may be less than ambient air compliance. The backplate may define a plurality of holes and a slot may be defined between an outer diameter of the backplate and an inner wall of the microphone. The locations and sizes of the holes, the size of the slot, and the volume of the backchamber may be selected such that membrane motion is substantially critically damped.

  10. CAMEX-4 DC-8 METEOROLOGICAL MEASUREMENT SYSTEM (MMS) V1

    Data.gov (United States)

    National Aeronautics and Space Administration — The NASA DC-8 Meteorological Measurement System consists of three major systems: an air-motion sensing system to measure air velocity with respect to the aircraft,...

  11. CAMEX-4 DC-8 METEOROLOGICAL MEASUREMENT SYSTEM (MMS) V1

    Data.gov (United States)

    National Aeronautics and Space Administration — The CAMEX-4 DC-8 Meteorological Measurement System (MMS) was collected by the MMS, which consists of three major systems: an air-motion sensing system to measure air...

  12. Measuring Relative Coupling Strength in Circadian Systems.

    Science.gov (United States)

    Schmal, Christoph; Herzog, Erik D; Herzel, Hanspeter

    2018-02-01

    Modern imaging techniques allow the monitoring of circadian rhythms of single cells. Coupling between these single cellular circadian oscillators can generate coherent periodic signals on the tissue level that subsequently orchestrate physiological outputs. The strength of coupling in such systems of oscillators is often unclear. In particular, effects on coupling strength by varying cell densities, by knockouts, and by inhibitor applications are debated. In this study, we suggest to quantify the relative coupling strength via analyzing period, phase, and amplitude distributions in ensembles of individual circadian oscillators. Simulations of different oscillator networks show that period and phase distributions become narrower with increasing coupling strength. Moreover, amplitudes can increase due to resonance effects. Variances of periods and phases decay monotonically with coupling strength, and can serve therefore as measures of relative coupling strength. Our theoretical predictions are confirmed by studying recently published experimental data from PERIOD2 expression in slices of the suprachiasmatic nucleus during and after the application of tetrodotoxin (TTX). On analyzing the corresponding period, phase, and amplitude distributions, we can show that treatment with TTX can be associated with a reduced coupling strength in the system of coupled oscillators. Analysis of an oscillator network derived directly from the data confirms our conclusions. We suggest that our approach is also applicable to quantify coupling in fibroblast cultures and hepatocyte networks, and for social synchronization of circadian rhythmicity in rodents, flies, and bees.

  13. 'It suits us well'. The Weser-Stadion at Bremen gets an unusual solar power supply system; 'Das passt zu uns'. Das Bremer Weser-Stadion erhaelt eine ungewoehnliche Solarstromanlage

    Energy Technology Data Exchange (ETDEWEB)

    Koepke, R.

    2008-06-15

    Not all of the fans of German premier league football club Werder Bremen may like it, but the new solar system can well compete with any other solar system, not just in football arenas. Modules with about 1 MW capacity are being installed and will be integrated architecturally in the walls and roof of the arena. (orig.)

  14. Fault-tolerant distributed measurement systems

    Energy Technology Data Exchange (ETDEWEB)

    Gater, C.

    1987-01-01

    A 100 kbit/s battery-powered fault-tolerant communications network was developed for use in industrial distributed measurement systems, where a loop controller supervises up to 64 addressable field devices with a network polling period of 250ms. Safety and reliability were optimized using fibre-optic data links and low-power circuitry throughout. Based on a highly redundant loop topology of two receiver/two transmitter communications nodes, the network can tolerate any double node or any quadruple linked failure. Each node circuit is designed to operate continuously for five years using a standard D-type lithium cell, and consists essentially of a CMOS single-chip microcomputer, a specially designed CMOS communications interface chip, some analogue circuity for the optical receivers and transmitters, and interfaces for a sensor/actuator and roving hand-held terminal. The communications interface was implement on a 2436-cell CMOS gate array and feature a self-test facility which provides over 86% fault coverage using only three test vectors. The chip can also be used in the loop controller. Control procedures developed to detect, locate, and reconfigure around faults that occur in the communications network.

  15. System for measuring engine exhaust constituents

    International Nuclear Information System (INIS)

    Carduner, K.R.; Colvin, A.D.; Leong, D.Y.W.

    1992-01-01

    This patent describes a system for measuring an automotive engine exhaust constituent. It comprises: a meter for determining the mass of air flowing through the engine and for generating an engine airflow signal corresponding to the airflow; sample handling apparatus; diluent adding means; processor means. This patent also describes a method for using an analyzer to determine the amount of lubricating oil consumed by an automotive engine. It comprises: determining the amount of sulfur dioxide within the room air being drawn into the engine; maintaining a constant total flow comprised of a constant fraction of the engine's exhaust gas and a diluent gas through the analyzer, while: determining the amount of sulfur dioxide contained within the engine's exhaust, determining the amount of sulfur dioxide contained within the engine's exhaust, while operating the engine on room air; determining an efficiency factor for the analyzer; and using the efficiency factor and the concentration of sulfur in the engine oil and the amounts of sulfur dioxide determined in steps a and d to determine the amount of lubrication oil leaving the engine through its exhaust

  16. Performance Measurement Systems in Swedish Health Care Services

    OpenAIRE

    Kollberg, Beata

    2007-01-01

    In the quality management literature, measurements are attributed great importance in improving products and processes. Systems for performance measurement assessing financial and non-financial measurements were developed in the late 1980s and early 1990s. The research on performance measurement systems has mainly been focused on the design of different performance measurement systems. Many authors are occupied with the study of the constructs of measures and developing prescriptive models of...

  17. Importance of evaluation of uncertainties on the measurement of natural gas and petroleum volumes; Importancia da avaliacao das incertezas na medicao dos volumes de petroleo e gas natural

    Energy Technology Data Exchange (ETDEWEB)

    Silva Filho, Jose Alberto Pinheiro da; Oliveira, Thiago Barra Vidal de; Mata, Josaphat Dias da [PETROBRAS, Rio de Janeiro, RJ (Brazil)], Emails: jose.pinheiro@petrobras.com.br, thiagovidal@petrobras.com.br, josaphat@petrobras.com.br; Val, Luiz Gustavo do [Instituto de Qualidade e Metrologia (IQM), Rio de Janeiro, RJ (Brazil)], E-mail: gdoval.iqm@petrobras.com.br

    2009-07-01

    The measurement is considered as the 'cash register' of the enterprises, increasing the accuracy and the exigence at each step when come close to the delivery points, where the 0.1 % of differences are discussed. The work presents the approach used in the evaluation of measurement uncertainties in the volumes obtained of petroleum and natural gas at the processes of production in Brazil, and in the international level as well.

  18. Measured performance of the GTA rf systems

    International Nuclear Information System (INIS)

    Denney, P.M.; Jachim, S.P.

    1993-01-01

    This paper describes the performance of the RF systems on the Ground Test Accelerator (GTA). The RF system architecture is briefly described. Among the RF performance results presented are RF field flatness and stability, amplitude and phase control resolution, and control system bandwidth and stability. The rejection by the RF systems of beam-induced disturbances, such as transients and noise, are analyzed. The observed responses are also compared to computer-based simulations of the RF systems for validation

  19. The Galileo System of Measurement: Preliminary Evidence for Precision, Stability, and Equivalance to Traditional Measures

    Science.gov (United States)

    Gillham, James; Woelfel, Joseph

    1977-01-01

    Describes the Galileo system of measurement operations including reliability and validity data. Illustrations of some of the relations between Galileo measures and traditional procedures are provided. (MH)

  20. The new E.ON Ruhrgas dispatching application and information system; Das neue Dispatching Application und Information System von E.ON Ruhrgas

    Energy Technology Data Exchange (ETDEWEB)

    Brummel, H.D.; Goetzen, P.; Spiecker, U. [E.ON Ruhrgas (Germany)

    2005-11-01

    Being ready for the future results in a modular IT system with suitable components to support and integrate the various tasks of different working groups involved in the processes of grid control and contract management. The system is capable of dealing with an increasingly large amounts of data and offers tools for automation and comfortable handling. The hub where all business data from diverse sources are joined together is the data warehouse. Being successful with project of this size in a 7 x 24h regime requires not only the best staff you can get and the full commitment of the top management, but also a very careful planning of the migration from the old system to the new system and a diligent testing scenario. Renewal of the complete system is done best in stages instead of one big bang. (orig.)

  1. Gas exchange measurements in natural systems

    International Nuclear Information System (INIS)

    Broecker, W.S.; Peng, T.H.

    1983-01-01

    Direct knowledge of the rates of gas exchange in lakes and the ocean is based almost entirely on measurements of the isotopes 14 C, 222 Rn and 3 He. The distribution of natural radiocarbon has yielded the average rate of CO 2 exchange for the ocean and for several closed basin lakes. That of bomb produced radiocarbon has been used in the same systems. The 222 Rn to 226 Ra ratio in open ocean surface water has been used to give local short term gas exchange rates. The radon method generally cannot be used in lakes, rivers, estuaries or shelf areas because of the input of radon from sediments. A few attempts have been made to use the excess 3 He produced by decay of bomb produced tritium in lakes to give gas transfer rates. The uncertainty in the molecular diffusivity of helium and in the diffusivity dependence of the rate of gas transfer holds back the application of this method. A few attempts have been made to enrich the surface waters of small lakes with 226 Ra and 3 H in order to allow the use of the 222 Rn and 3 He methods. While these studies give broadly concordant results, many questions remain unanswered. The wind velocity dependence of gas exchange rate has yet to be established in field studies. The dependence of gas exchange rate on molecular diffusivity also remains in limbo. Finally, the degree of enhancement of CO 2 exchange through chemical reactions has been only partially explored. 49 references, 2 figures, 2 tables

  2. Estimativa do total de horas abaixo de determinada temperatura-base através das medidas diárias da temperatura do ar Number of hours below any base temperature estimated by daily measurements of air temperature

    Directory of Open Access Journals (Sweden)

    Luiz B. Angelocci

    1979-01-01

    Full Text Available São propostas equações matemáticas para estimar o total diário de horas abaixo de determinada temperatura-base, em certo período, utilizando-se somente dos valores diários das temperaturas máxima, mínima e das 21 horas (hora local. A comparação entre os totais diários e mensais de "horas de frio" estimados pelas equações propostas e os observados através de termogramas, para várias localidades do Estado de São Paulo, mostrou boa concordância entre os métodos de cálculo. O modelo proposto dispensa o uso de registros contínuos de temperatura. As vantagens de tal estimativa residem na maior disponibilidade de registros de temperaturas máximas, mínimas e das 21 horas, permitindo maior densidade de pontos em trabalhos de zoneamento agroclimático e de cartografia, além da eliminação do processo de cotação de termogramas.Mathematical equations are proposed to estimate the daily number of hours in which the air temperature remains below a determined treshold value. The equations require only daily values of maximum, minimum and 9 p.m. local time temperature, measured inside the meteorological shelter. This technique is suitable for machine computation thus avoiding the tremendous task of quantifying a large number of thermograms. This fact permits the utilization of a greater number of stations in studies of crop zonation and cartography. Good correlations were obtained between estimated and observed data of the daily and monthly total number of hours below 7°C, 13°C and 17°C, for five stations in the State of São Paulo, Brazil, showing relative accuracy of the proposed equations.

  3. Das Reflektierende Team

    DEFF Research Database (Denmark)

    Gaarden, Marianne; Lorensen, Marlene Ringgaard

    2015-01-01

    Jüngere empirische Forschung dazu, wie Predigthörende Predigten wahrnehmen und mit ihnen interagieren, deutet darauf hin, dass Predigende als Gesprächspartner und als theologischer Spiegel der Gemeinde wahrgenommen werden. Die Gemeinde gelangt im Dialog mit den Worten der Predigt zu eigenen...... Bedeutungszuschreibungen. Marianne Gaardens Forschung zeigt, dass zwischen Predigenden und Hörenden ein ›dritter Raum‹ entsteht, wie sie das nennt. Dabei handelt es sich um einen liminalen, rituell konturierten Raum, in dem Hörende Predigtelemente rezipieren und in ihre eigenen gelebten Erfahrungen einbauen. Komplementär...... die Wahrnehmung der Predigt als eines dialogischen Geschehens – und zwar von der Predigtvorbereitung über die Interaktion mit Hörenden und anschließende Rückmeldungen bis hin zu Umarbeitungen und Überlegungen für die nächsten Predigt. Die Methode geht davon aus, dass einzelne Subjekte Teil einer...

  4. Medidas da latência das emissões otoacústicas - produto de distorção em neonatos Measures of distortion product otoacoustic emissions latency in neonates

    Directory of Open Access Journals (Sweden)

    Renata Frasson de Azevedo

    2003-10-01

    Full Text Available A latência do produto de distorção das emissões otoacústicas é definido como o tempo que o estimulo acústico leva para alcançar o local gerador da emissão otoacústica na cóclea e retornar ao meato acústico externo, no local do registro. A latência das emissões otoacústicas pode ser um instrumento útil para analisar mudanças na maturação coclear assim como os micromecanismos cocleares, já que há uma relação entre a latência das emissões otoacústicas produto de distorção EOAPD e a onda viajante coclear. Estudos em adultos mostram uma diminuição da latência com o aumento da freqüência sonora, variando de 13.8 ms em 787 Hz a 4.4 ms em 5 Hz. Esta diminuição ocorre devido à organização tonotópica da cóclea. São escassos os trabalhos nesta área e não são encontrados critérios de normalidade para estas medidas, principalmente em recém-nascidos. OBJETIVO: Sendo assim, o objetivo deste trabalho foi caracterizar as medidas da latência das EOAPD em neonatos nascidos a termo e não pertencentes ao grupo de risco para perda auditiva. FORMA DE ESTUDO: Caso controle. MATERIAL E MÉTODO: Foram avaliados 31 neonatos, de ambos os sexos e nascidos a termo, sem intercorrências. O procedimento utilizado foi o programa Latencygram. As freqüências testadas foram de 3 a 6 KHz na intensidade de 70 dBNA para f1 e f2. RESULTADO: Os resultados obtidos mostraram uma diminuição da latência com o aumento da freqüência sonora e uma diferença entre os sexos.Latency of distortion product otoacoustic emissions (DPOE is defined as the time that the acoustic stimulus takes to reach the site generating the otoacoustic emission, inside de cochlea, and the return to the external acoustic meatus, to be register. DPOE latency may serve as a useful tool to study cochlear maturational changes as well as the micromechanics of the cochlea, since a relationship between DPE latency and the cochlear traveling wave was observed. Studies on

  5. Design and realization of the AMANDA software trigger for the TWA data readout system; Entwurf und Realisierung des AMANDA-Softwaretriggers fuer das TWR-Datenauslese-System

    Energy Technology Data Exchange (ETDEWEB)

    Messarius, Timo

    2006-07-15

    The thesis begins with a short introduction in the theory of astroparticle physics. Especially the processes, which lead to signal respectively background events in neutrino detectors, are discussed. Thereafter follows the descripotion of the basing detection principle and the detectors AMANDA and IceCube. The following chapter considers the two data-acquisition systems of the AMANDA detector and explains the motivation for the construction of a new data-acquisition system. The newly designed trigger system is then extensively treated. First a completely on software basing system is discussed, and then the implemented version is considered more detailedly. A procedure to detect and to mark events from atmospheric muons directly on trigger level is presented.

  6. Development of a computer system to optimize the registration of scheduled inspections and the occurrences observed in field; Desenvolvimento de um sistema computacional para otimizar o cadastramento das inspecoes programadas e das ocorrencias observadas em campo

    Energy Technology Data Exchange (ETDEWEB)

    Senne, E.L F.; Freire Junior, J.C.; Fernandes Filho, G.E.F.; Cassula, A.M. [Universidade Estadual Paulista (FEG/UNESP), Guaratingueta, SP (Brazil). Fac. de Engenharia], E-mails: elfsenne@feg.unesp.br, jcfreire@feg.unesp.br, gfilippo@feg.unesp.br, agnelo@feg.unesp.br; Avila, J.I. [Bandeirante Energia S.A., Sao Jose dos Campos, SP (Brazil)], Email: joao.avila@enbr.com.br

    2009-07-01

    The development of computational tools for programming and implementing inspections in distribution aerial network is presented. The programming of inspections can be elaborated for each maintenance centre or for the entire concession centrally. Inspections may be programmed for any time horizon. Running of scheduled inspections is made with the aid of mobile devices PDA (Personal Digital Assistant) type through an system developed in J2ME for data collection. Data collected on the defects observed are stored in the PDA in an XML file format and can be exported to a database through the Internet. The programming system of inspections, from the information stored in the database, may issue reports about registered inspections, about the observations recorded and about the canceled inspections.

  7. The Relationship Between Function and Disease Activity as Measured by the HAQ and DAS28 Varies Over Time and by Rheumatoid Factor Status in Early Inflammatory Arthritis (EIA). Results from the CATCH Cohort.

    Science.gov (United States)

    Boyd, Tristan A; Bonner, A; Thorne, C; Boire, G; Hitchon, C; Haraoui, B P; Keystone, E C; Bykerk, V P; Pope, J E

    2013-01-01

    To investigate the relationship between function and disease activity in early inflammatory arthritis (EIA). Canadian Early Arthritis Cohort (CATCH) (n=1143) is a multi-site EIA cohort. Correlations between the Health Assessment Questionnaire Disability Index (HAQ) and DAS28 were done at every 3 months for the first year and then at 18 and 24 months. We also investigated the relationship between HAQ and DAS28 by age (<65 versus ≥65) and RF (positive vs negative). Mean HAQ and DAS28 scores were highest at the initial visit with HAQ decreasing over 24 months from a baseline of 0.94 to 0.40 and DAS28 scores decreasing from 4.54 to 2.29. All correlations between HAQ and DAS28 were significant at all time points (p<0.01). The correlations between HAQ and DAS28 were variable over time. The strongest correlation between HAQ and DAS28 occurred at initial visit (most DMARD naive) (n=1,143) and 18 months (r=0.57, n=321) and 24 months (r=0.59, n=214). The baseline correlation between HAQ and DAS28 was significantly different than correlations obtained at 3, 6, and 12 months (p=0.02, 0.01, and 0.01, respectively). Age did not change the association between HAQ and DAS28 {<65 years old (r=0.50, n=868) versus ≥65 (r=0.48, n=254), p=0.49}. The correlation between HAQ and DAS28 was stronger with RF+ patients (r=0.63, n=636) vs RF negative (r=0.47, n=477), p=0.0043. Over 2 years in EIA, HAQ and DAS both improved; correlations at time points were different over 2 years and RF status affected the correlations.

  8. Novel measurement-based indoor cellular radio system design

    OpenAIRE

    Aragón-Zavala, A

    2008-01-01

    A scaleable, measurement-based radio methodology has been created to use for the design, planing and optimisation of in door cellular radio systems. The development of this measurement-based methodology was performed having in mind that measurements are of ten required to valiate radio coverage in a building. Therefore, the concept of using care fully calibrated measurements to design and optimise a system is feasible since these measurements can easily be obtained prior to system deployment ...

  9. Propuesta para la medición del impacto de las TIC en la enseñanza universitaria Proposta para medir o impacto das TICs no ensino universitario Proposal for Measuring the Impact of ICT on College Teaching

    Directory of Open Access Journals (Sweden)

    Gloria Patricia Ávila-Fajardo

    2011-04-01

    Full Text Available El objetivo general de este artículo es establecer una metodología apropiada que permita medir el impacto de las TIC en los procesos de enseñanza-aprendizaje en la educación superior (Impactic. El contexto de la investigación se centra en facultades de corte humanístico. La construcción de Impactic se encuentra relacionada con la fundamentación, especialmente en el análisis de los modelos pedagógicos, el proceso de inclusión de las TIC en el contexto educativo y el impacto de la tecnología en el ambiente educativo.Este trabalho desenvolve o objetivo geral de estabelecer uma metodologia adequada para medir o impacto das TICs no ensino-aprendizagem no ensino superior (IMPACTIC. O contexto da pesquisa centra-se em faculdades de tipo humanista. A construção de IMPACTIC fundamenta-se na análise de modelos pedagógicos, o processo de inclusão das TICs no contexto educacional e o impacto da tecnologia no ambiente educacional.The general objective of this article is to define at an appropriate method for measuring the impact of ICT on teaching-learning processes in higher education (IMPACTIC. In terms of its context, the study is centered on faculties in the area of humanities. The construction of IMPACTIC is related to the basics, particularly an analysis of teaching models, processes for incorporating ICT into educational contexts, and the impact of technology on the educational environment.

  10. Ultrasound stress measurements for API X65 pipes; Avaliacao por ultra-som das tensoes impostas em tubo API X-65

    Energy Technology Data Exchange (ETDEWEB)

    Medeiros, Raimundo C.; Santos, Ramon Loback Medeiros [TRANSPETRO - PETROBRAS Transporte S.A., Rio de Janeiro, RJ (Brazil); Bittencourt, Marcelo S.Q.; Lamy, Carlos A. [Instituto de Engenharia Nuclear (IEN), Rio de Janeiro, RJ (Brazil); Donato, Guilherme V.P. [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil)

    2003-07-01

    Risks of damages or even premature collapse of buried pipelines caused by their interaction with geologically unstable soils are well-established phenomena. Therefore, both monitoring and measurements of the actual loads transmitted by the soil to the pipeline are mandatory requirements, and define the necessity of developing new nondestructive techniques capable to carry out through evaluations of these loads in field. The aim of this paper has been placed on the presentation of a cutting-edge ultrasonic technology applied to stress measurements. To accomplish this purpose a series of ultrasonic tests were conducted on tensile specimens extracted from API 5L Grade X-65 steel pipe to determine its acoustic birefringence. The results have evidenced the acoustic birefringence to be a technique sufficiently consistent and, consequently, it shall be considered as a promising tool for the evaluation of the structural integrity of metallic structures in the near future. In addition, it was also observed that the use of this technique allows measuring the residual stress resulting from the pipe manufacturing process. (author)

  11. Continuous measurements on a modulating system

    International Nuclear Information System (INIS)

    Gariod, R.; Tournier, E.

    1963-01-01

    We have developed a number of measuring and testing instruments for which interesting characteristics have been obtained through modulation. In this paper, we would like to emphasize the interest of using the synchronous demodulation when a previous modulation has been used in the device. We give the fundamentals of some embodiments applied to nuclear and physical parameters measurements. (authors) [fr

  12. Highly sensitive straightness measurement system using a ball-lens

    International Nuclear Information System (INIS)

    Lee, Minho; Yang, Hyun-Ik; Cho, Nahm-Gyoo

    2016-01-01

    In this paper, a new and simple optical technique to accurately measure the straightness errors of a linear stage is proposed. To improve the performance, including the measurement sensitivity and resolution of the measurement system, and to simultaneously measure two-dimensional straightness errors (2D straightness errors), an optical system was designed using a laser, a retro-reflector, a ball-lens, and a two-dimensional position sensitive detector (2D PSD). The characteristics of the measurement system were analytically and experimentally investigated. A prototype measurement system was manufactured based on the investigated results, and the performances of this system have been tested. The measuring performance of the system was easily improved by about 12 times using the proposed technique and it can be further improved. It is shown that the proposed technique can easily and effectively improve the performance of a conventional straightness measurement system based on the geometric optical method using a PSD. (paper)

  13. PLS beam position measurement and feedback system

    International Nuclear Information System (INIS)

    Huang, J.Y.; Lee, J.; Park, M.K.; Kim, J.H.; Won, S.C.

    1992-01-01

    A real-time orbit correction system is proposed for the stabilization of beam orbit and photon beam positions in Pohang Light Source. PLS beam position monitoring system is designed to be VMEbus compatible to fit the real-time digital orbit feedback system. A VMEbus based subsystem control computer, Mil-1553B communication network and 12 BPM/PS machine interface units constitute digital part of the feedback system. With the super-stable PLS correction magnet power supply, power line frequency noise is almost filtered out and the dominant spectra of beam obtit fluctuations are expected to appear below 15 Hz. Using DSP board in SCC for the computation and using an appropriate compensation circuit for the phase delay by the vacuum chamber, PLS real-time orbit correction system is realizable without changing the basic structure of PLS computer control system. (author)

  14. Das Qualitätsmanagementsystem für die Lehre an der Medizinischen Fakultät Carl Gustav Carus der Technischen Universität Dresden [Quality Management System of Education at Dresden Faculty of Medicine

    Directory of Open Access Journals (Sweden)

    Tiebel, Margret

    2006-11-01

    Full Text Available [english] Within two years the Faculty of Medicine Dresden introduced a quality management system (QMS for educational processes. The system underwent a certificational procedure and was certified according to DIN EN ISO 9001:2000. The QMS is based on a manual describing all educational processes. It serves visualization of these processes, identification of links between them and a clear definition of responsibilities. All involved employees of Faculty of Medicine can use the manual to optimize and improve the educational system. Leadership-, core- and supporting processes are described. Procedure instructions and further applicable documents are included. The manual is accessible via Intranet to all employees and "clients" of the Faculty of Medicine. The QMS is a leadership instrument. It relies on the vision of the Dresden Faculty of Medicine which defines short and long term goals and strategies to reach them. Certification procedure was completed with handing over of the certificate to the dean. It is valid for three years and the Faculty of Medicine will be under yearly supervision of certification agency. [german] Nach zweijähriger Einführungszeit führte die Medizinische Fakultät Dresden als erste medizinische Fakultät Deutschlands ein Qualitätsmanagementsystem (QMS für die Lehre ein und ließ es nach der DIN EN ISO 9001:2000 Norm zertifizieren. Das QMS beruht auf einem Handbuch, welches die wesentlichsten mit der Lehre verbundenen Prozesse beschreibt. Es dient der klaren Prozessvisualisierung, Identifikation der Vernetzungen zwischen den Abläufen und einer ebenso klaren Definition der Verantwortlichkeiten mit Verbindlichkeitscharakter. Es ist eine Handlungsanleitung, auf die alle in die Prozesse der Ausbildung involvierten Kollegen Zugriff haben, mit dem Ziel, alle sich aufzeichnenden Möglichkeiten zur Optimierung zu nutzen und eine Verbesserung des Gesamtsystems kontinuierlich voranzutreiben. Beschrieben werden F

  15. Methods and systems for measuring anions

    KAUST Repository

    Masih, Dilshad; Mohammed, Omar F.; Aly, Shawkat M.; Alarousu, Erkki

    2016-01-01

    Embodiments of the present disclosure provide for methods for detecting the presence and/or concentration of anions in a solution, systems for detecting the presence and/or concentration of anions in a solution, anion sensor systems, and the like.

  16. Dynamic Measurements of a Novel System

    DEFF Research Database (Denmark)

    Yu, Tao; Zhang, Chen; Heiselberg, Per Kvols

    In the PSO project 345-061, a novel system solution combining natural ventilation with diffuse ceiling inlet and thermally activated building systems (TABS) has been proposed for cooling and ventilation in Danish office buildings. Due to the application of diffuse ceiling inlet, cold outdoor air ...

  17. Methods and systems for measuring anions

    KAUST Repository

    Masih, Dilshad

    2016-08-18

    Embodiments of the present disclosure provide for methods for detecting the presence and/or concentration of anions in a solution, systems for detecting the presence and/or concentration of anions in a solution, anion sensor systems, and the like.

  18. Nuclear material measurement system in Brazil

    International Nuclear Information System (INIS)

    Almeida, S.G. de.

    1988-01-01

    The description of the activities developed at the Safeguards Laboratory of Brazilian Nuclear Energy Commission is done. The methods and techniques used for measuring and evaluating nuclear materials and facilities are presented. (E.G.) [pt

  19. Proportional counter system for radiation measurement

    Energy Technology Data Exchange (ETDEWEB)

    Sugimoto, M; Okudera, S

    1970-11-21

    A gas such as Xe or Kr employed in counter tubes is charged into the counter tube of a gas-flow type proportional counter for radiation measurement and into a vessel having a volume larger than that of the counter tube. The vessel communicates with the counter tube to circulate the gas via a pump through both the vessel and tube during measurement. An organic film such as a polyester synthetic resin film is used for the window of the counter tube to measure X-rays in the long wavelength range. Accordingly, a wide range of X-rays can be measured including both long and short wavelengths ranges by utilizing only one counter tube, thus permitting the gases employed to be effectively used.

  20. Magnetic field measurement system of the VINCY Cyclotron

    International Nuclear Information System (INIS)

    Dobrosavljevic, A.; Cirkovic, S.; Zdravkovic, A.; Urosevic, Z.; Lucic, M.; Gemaljevic, M.

    1995-01-01

    This paper presents the magnetic field measurement system of the VINCY Cyclotron, main part of the TESLA accelerator installation whose construction has been going on in the Vinca Institute of Nuclear Sciences. Measurement system consists of mechanical structure and control unit for the automatic positioning of the measurement probe in the median plane, between the poles of the magnet, and corresponding measuring instrumentation, based on two digital tesla meters. Concept of the measurement system is defined by the TESLA team, while realisation of the measurement system is performed in co-operation with the LOLA Institute. (author)

  1. Quantificação das citocinas séricas Th1/Th2 por citometria de fluxo no linfoma de Hodgkin clássico Measurement of Th1/Th2 serum cytokines by flow cytometry in classical Hodgkin lymphoma

    Directory of Open Access Journals (Sweden)

    Adriana K. Mitelman

    2009-08-01

    Full Text Available O linfoma de Hodgkin clássico (LHC é uma neoplasia com distúrbio na produção de citocinas. Estudos demonstram que o padrão anormal das citocinas no linfonodo acometido pela lesão contribui não somente com a proliferação das células malignas H-RS, como também com o característico infiltrado hiper-reativo que compõe o tecido no LHC. Esta disfunção pode ser observada tanto no quadro clínico dos pacientes, como nas características histopatológicas: sintomas B, deficiência na resposta imune celular, bandas de colágeno e eosinofilia. As concentrações séricas das citocinas Th1 (IL-2, TNF, INF-γ e Th2 (IL-4, IL-5, IL-10 foram estudadas em 45 pacientes com LHC, ao diagnóstico, e em 34 doadores saudáveis, por citometria de fluxo (CBA - cytometric beads array. Houve aumento das concentrações das citocinas TNF (pClassical Hodgkin lymphoma (CHL is a malignancy with an abnormal or unbalanced secretion/production of cytokines, which might support the growth of H-RS cells, their surrounding reactive bystander cells and may be responsible for the typical clinical and histopathologic features of CHL: systemic B symptoms, an apparent defect in cell-mediated immune response, tumor fibrosis and eosinophilic infiltrate. Serum concentrations of IL-2, IL-4, IL5, IL-10, TNF and IFN-γ (Th1/Th2 were measured in 45 patients at diagnosis of classical Hodgkin lymphoma and in 34 healthy controls by cytometric beads array (CBA. Levels of TNF (p<0.01, INF-γ(p<0.01, IL-4 (p=0.01, IL-5 (p<0.01 e IL-10 (p<0.01 were significantly higher in patients compared to the control group. No difference was observed for IL-2 between the two groups. On correlating Th1/Th2 cytokine concentrations with clinical risk factors, elevated IL-10 (Th2 levels are associated with variables that suggest worse prognoses including III/IV stage (p=0.01, B-symptoms (p=0.04, hemoglobin < 10.5g/dL (p=0.01, lymphocytes < 600/mm³ (p=0.01 and according to the seven

  2. Insegurança alimentar medida a partir da percepção das pessoas Food insecurity as measured by individual perceptions

    Directory of Open Access Journals (Sweden)

    Ana Maria Segall Corrêa

    2007-08-01

    Full Text Available Este artigo resume o processo de validação da Escala Brasileira de Insegurança Alimentar (Ebia, realizado entre 2003 e 2004 em cinco unidades da federação. Foi um estudo colaborativo com uma primeira fase qualitativa constituída por quatro painéis de especialistas e 11 grupos focais em comunidades pobres, e uma segunda, quantitativa, com inquéritos em amostras intencionais de populações de estratos sociais diversos. O texto enfatiza o grau de compreensão que a população tem dos conceitos contidos na escala, o que mostra sua adequação à realidade brasileira. A partir desse trabalho, o Brasil passa a contar com um instrumento de medida direta da insegurança alimentar e da fome, de alta validade, fácil aplicação e baixo custo.This paper brings the validation process of the Brazilian Scale to measure food insecurity (Ebia, which has been conducted from 2003 through 2004. It was a collaborative study that took place in five Brazilian States and was carried out initially with a qualitative method, bringing up the opinion of four specialists panels and also eleven focus groups to evaluate the comprehension of concepts by participants living in poor communities. The second phase comprised five surveys that used convenience samples of different social strata of the population. The high understanding of the study population about the scale concepts and contents is emphasized, showing it’s adequacy to Brazilian reality, meaning that the country can now rely on an instrument to direct measuring food insecurity and hunger with high internal and external validity, easy to use and of low cost application.

  3. A Windows-95 based DAS software for the determination of chloride and fluoride in MOX fuel samples by pyrohydrolysis-ISE method

    Energy Technology Data Exchange (ETDEWEB)

    Govindan, R; Kulkarni, Atul; Sivashankaran, G; Raul, Seema; Behere, P G; Mallik, G K; Bhargava, V K; Kamath, H S [Advanced Fuel Fabrication Facility, Bhabha Atomic Research Centre, Tarapur (India)

    1999-01-01

    A Windows-95 based Data Acquisition System (DAS) software has been developed to determine chloride and fluoride in MOX (Mixed Oxide) fuel pellets by pyrohydrolysis followed by Ion Selective Electrodes (ISE). The DAS software controls the furnace remotely and acquires data related to ion-85 ion analyser through RS-232C serial port. This results in ease of operation of furnace during pyrohydrolysis and storage of measured data from ion-85 ion analyser for future use. (author) 4 refs., 1 fig., 3 tabs.

  4. Insider Anomaly Measurement Processing System (IAMPS)

    National Research Council Canada - National Science Library

    McCallam, Dennis

    2002-01-01

    .... Several forms of authentication information and types of sensors were considered as part of the IAMPS suite, with the goal of using common COTS sensors to enhance transfer of IAMPS technology into real world systems...

  5. Industrial optoelectronic measurement systems using coherent light

    International Nuclear Information System (INIS)

    Fagan, W.F.

    1987-01-01

    This book covers the proceedings of the Society of Photo-Optical Instrumentation Engineers. Topics covered include Laser metrology systems used for reactor inspection in the central electricity generating board and computer automated holometry for automotive applications

  6. Improved Measurement System for Atmospheric Studies

    Science.gov (United States)

    2015-05-05

    amount of xtra lift that permits the ballon to rise (if Res_Lift = 0, balloon is at equilibrium) RL = NL – Payload – Tether Payload: the weight of...lifting platronn: 24 cu meter Helikyte (I) Fairweather lifting pratform: Aerodynamic. blimp (I) Higher $trtngth tether for hclikyte (2) 0cna1ion...Cooperative Institute for Research in Environmental Sciences (CIRES) Tethered Lifting System (TLS) is a specialty-designed state-of-the art tethersonde system

  7. Multichannel system for angular distribution measurements

    International Nuclear Information System (INIS)

    Burjan, V.; Kroha, V.; Putz, K.

    A description is given of the individual blocks of the spectrometric apparatus used for measuring the angular distribution of particle spectra and excitation functions of (d,p) reactions at an electrostatic accelerator and the U-120 M cyclotron, both operating at the Nuclear Physics Institute of the Czechoslovak Academy of Sciences at Rez. Main attention was devoted to attaining maximum energy resolution at a high measurement efficiency, this by installing 8 independent spectrometric chains allowing simultaneous measurement of angular distribution in 8 points of the beam. The semiconductor detectors were cooled to -40 degC to -60 degC, which significantly reduced the level of inherent detector noise. An energy resolution of 13 keV was attained using Tesla detectors at a particle energy of 11 MeV. A brief review of data processing and software is given. (B.S.)

  8. Counting systems characterization for air activity measurements

    International Nuclear Information System (INIS)

    Vijayakumar, B.; Balamurugan, M.; Ravi, P.M.

    2018-01-01

    Air activity measurements are carried out continuously at all the nuclear power plant (NPP) sites both during pre-operational phase and also during operation of nuclear facility. These measurements provide a trend line for the background air activity in the surrounding environments of an operating NPP. Any increase in air activity over the benchmark level becomes very handy to investigate the releases from the station and to give feedback to the operators of NPP about the prevailing air activity levels and their correlation to the plant releases. This paper compiles the results obtained for air filter samples using different counters operating in GM region and also plastic scintillators

  9. Origens das formas budistas

    Directory of Open Access Journals (Sweden)

    Fernando Carlos Chamas

    Full Text Available RESUMO As características de uma imagem de Buda são o resultado do processo milenar que uniu três fatores: as mitologias orientais mais antigas que o budismo, sua capacidade de se adequar às crenças locais e as suas próprias reinterpretações. Após o surgimento das primeiras estátuas que representavam o Buda histórico, o ideal de beleza para um ser que alcançou a Iluminação baseou-se nas antigas "ciências" orientais, predominantemente mentais e de energias sutis. Enquanto a estética ocidental discutia as idealizações da arte com racionalidade, ignorando um oriente "pagão e supersticioso", as imagens budistas personificavam estados mentais que o ocidente só cogitaria na sua modernidade. A arte budista transmite o legado ancestral e imutável de chaves místicas da consciência e do equilíbrio..

  10. Bingo das Ervilhas

    Directory of Open Access Journals (Sweden)

    Luciana Bonato Lovato

    2016-12-01

    Full Text Available Este artigo analisa a utilização de um jogo didático sobre conteúdos de Genética ministrados no Ensino Fundamental. O material utilizado foi elaborado a partir da literatura existente e trabalhado sob a forma de uma oficina ministrada a professores de Ensino Fundamental e Médio de escolas de abrangência da 4a. Coordenadoria Regional de Educação do Rio Grande do Sul. A oferta desta oficina partiu do pressuposto de que os jogos educacionais são uma importante estratégia no processo de ensino-aprendizagem por se tratarem de uma ferramenta facilitadora nas aulas de Ciências, uma vez que contribuem para a aprendizagem de conceitos e termos complexos de maneira lúdica e estimulam o desenvolvimento das competências dos educandos. Todos os participantes consideraram que a oficina realizada contribuirá para sua prática docente, e acreditam que os jogos didáticos oferecem experiências de aprendizado que contribuem para construção do conhecimento.

  11. Surface Moisture Measurement System Operation and Maintenance Manual

    International Nuclear Information System (INIS)

    Ritter, G.A.; Pearce, K.L.; Stokes, T.L.

    1995-12-01

    This operations and maintenance manual addresses deployment, equipment and field hazards, operating instructions, calibration verification, removal, maintenance, and other pertinent information necessary to safely operate and store the Surface Moisture Measurement System (SMMS) and Liquid Observation Well Moisture Measurement System (LOWMMS). These systems were developed primarily in support of Tank Waste Remediation System (TWRS) Safety Programs for moisture measurement in organic and ferrocyanide watch list tanks

  12. Multi-sensor measurement system for robotic drilling

    OpenAIRE

    Frommknecht, Andreas; Kühnle, Jens; Pidan, Sergej; Effenberger, Ira

    2015-01-01

    A multi-sensor measurement system for robotic drilling is presented. The system enables a robot to measure its 6D pose with respect to the work piece and to establish a reference coordinate system for drilling. The robot approaches the drill point and performs an orthogonal alignment with the work piece. Although the measurement systems are readily capable of achieving high position accuracy and low deviation to perpendicularity, experiments show that inaccuracies in the robot's 6D-pose and e...

  13. System precision assessment ExacTrac 6D® BrainLab of the Hospital das Clinicas da Faculdade de Medicina da USP; Avaliacao da precisao do sistema Exactrac 6D® BrainLab do Hospital das Clinicas da Faculdade de Medicina da USP

    Energy Technology Data Exchange (ETDEWEB)

    Maistro, Carlos E.B., E-mail: carloseduardo.bravinmaistro@gmail.com [Programa de Residencia Multiprofissional em Fisica Medica, Faculdade de Medicina de Sao Paulo, SP (Brazil); Nakandakari, Marcos V.N.; Ribeiro, Victor A.B.; Sales, Camila P. de; Rodrigues, Laura N. [Universidade de Sao Paulo (USP), SP (Brazil). Instituto de Radiologia. Servico de Radioterapia. Hospital das Clinicas

    2015-08-15

    The goal of this study was to evaluate the precision of ExacTrac 6D® Brainlab system, installed at Hospital das Clinicas da Faculdade de Medicina da USP, in frameless radiosurgery treatments. Four sets of tests were performed for different purposes in order to assess the following parameters: the accuracy of location through infrared system; evaluation of the reproducibility of fusion algorithm; evaluation of the X-ray system; and the end-to-end test with the goal of assess the overall accuracy of the system. It was found that the infrared system showed a maximum deviation of 0.5 mm in terms of positioning and the X-ray system showed a precision of 0.15 mm and 0.6°. The reproducibility of fusion algorithms provided a maximum deviation in position which was less than 0.5 mm and 0.5° and the quantitative analysis of the results for end-to-end test showed an overall accuracy of the system better than 0.8 mm. (author)

  14. Measuring the ROI on Knowledge Management Systems.

    Science.gov (United States)

    Wickhorst, Vickie

    2002-01-01

    Defines knowledge management and corporate portals and provides a model that can be applied to assessing return on investment (ROI) for a knowledge management solution. Highlights include leveraging knowledge in an organization; assessing the value of human capital; and the Intellectual Capital Performance Measurement Model. (LRW)

  15. Flavor release measurement from gum model system

    DEFF Research Database (Denmark)

    Ovejero-López, I.; Haahr, Anne-Mette; van den Berg, Frans W.J.

    2004-01-01

    composition can be measured by both instrumental and sensory techniques, providing comparable information. The peppermint oil level (0.5-2% w/w) in the gum influenced both the retronasal concentration and the perceived peppermint flavor. The sweeteners' (sorbitol or xylitol) effect is less apparent. Sensory...

  16. Unstable systems and repeated measurements. II

    International Nuclear Information System (INIS)

    Exner, P.

    1977-01-01

    Two examples are treated. In the first, the chamber structure is only assumed to be periodic and P(t) is an exponential. In the second example no specific assumption is made about the primary decay law and the measuring device is structured as an idealized spark chamber. This example contains the results by Beskow and Nilsson as a special case. (author)

  17. CONFOCAL MICROSCOPY SYSTEM PERFORMANCE: LASER POWER MEASUREMENTS

    Science.gov (United States)

    Laser power abstract The reliability of the confocal laser-scanning microscope (CLSM) to obtain intensity measurements and quantify fluorescence data is dependent on using a correctly aligned machine that contains a stable laser power. The laser power test appears to be one ...

  18. Development of power management concepts for the electrical power system in passenger vehicles; Entwicklung von Energiemanagement-Konzepten fuer das elektrische Bordnetz im Kraftfahrzeug

    Energy Technology Data Exchange (ETDEWEB)

    Meir, F.; Bertram, M.; Christ, T. [BMW Group (Germany); Reuss, H.-C. [Stuttgart Univ. (Germany). IVK; Morawietz, L.; Buechner, S. [Technische Univ. Dresden (Germany)

    2005-07-01

    The implementation of innovative systems in passenger vehicles requires a stable electric power supply. Moreover, the increasing demand on electric energy causes a larger influence on the fuel consumption. The task of an intelligent Power Management System is to optimise power generation as well as to achieve a reliable supply for electric loads. This paper deals with tools for development and evaluation of these functions. The preliminary design of control concepts is based on simulation. The simulation models are completely described by an object-oriented modeling language. Parameters of components from present power systems are extracted from measurements in the vehicle and with the help of a Hardware-in-the-Loop test bench. First simulation results indicate the quality of the new power management concepts. In parallel, these concepts can be approved on the test bench. (orig.)

  19. Development of radiation detection and measurement systems

    Energy Technology Data Exchange (ETDEWEB)

    Moon, B. S.; Ham, C. S.; Chung, C. E. and others

    2000-03-01

    This report contains descriptions on the following six items. The first item is the result of a study on CsI(TI) crystals with their light emitting characteristics and the result of a study on plastic scintillators. The second item is the result of a study on advanced radiation detectors and includes experiments for the effect of using a Compton suppressor with an HPGe detector. For the third item, we describe the results of a design work done using EGS4 for a thickness gauge, a density gauge, and a level gauge. The fourth item contains descriptions on the prototype circuit systems developed for a level gauge, a thickness gauge, and for a survey meter. The fifth part contains the computed tomography algorithm and a prototype scanning system developed for a CT system. As the sixth and the last item, we describe the prototype high precision heat source and the prototype heat-voltage converter which we have designed and fabricated.

  20. Development of radiation detection and measurement systems

    International Nuclear Information System (INIS)

    Moon, B. S.; Ham, C. S.; Chung, C. E. and others

    2000-03-01

    This report contains descriptions on the following six items. The first item is the result of a study on CsI(TI) crystals with their light emitting characteristics and the result of a study on plastic scintillators. The second item is the result of a study on advanced radiation detectors and includes experiments for the effect of using a Compton suppressor with an HPGe detector. For the third item, we describe the results of a design work done using EGS4 for a thickness gauge, a density gauge, and a level gauge. The fourth item contains descriptions on the prototype circuit systems developed for a level gauge, a thickness gauge, and for a survey meter. The fifth part contains the computed tomography algorithm and a prototype scanning system developed for a CT system. As the sixth and the last item, we describe the prototype high precision heat source and the prototype heat-voltage converter which we have designed and fabricated

  1. Measuring the global domain name system

    NARCIS (Netherlands)

    Casalicchio, E.; Shen, Xuemin; Caselli, M.; Coletta, A.

    2013-01-01

    The Internet is a worldwide distributed critical infrastructure, and it is composed of many vital components. While IP routing is the most important service, today the Domain Name System can be classified as the second most important, and has been defined as a critical infrastructure as well. DNS

  2. Information Systems and Performance Measures in Schools.

    Science.gov (United States)

    Coleman, James S.; Karweit, Nancy L.

    Large school systems bring various administrative problems in handling scheduling, records, and avoiding making red tape casualties of students. The authors review a portion of the current use of computers to handle these problems and examine the range of activities for which computer processing could provide aid. Since automation always brings…

  3. The Transportable Measurements Facility (TMF) System Description.

    Science.gov (United States)

    1980-05-23

    sites using different antennas, antenna/site characterization, ATCRBS-mode and DABS-mode processor evaluation, and DABS-based ATC and ATARS system...conditions met. 34 TABLE 3 TMF DATA RECORDED DURING EXPERIMENTS By Word Type 1) By Parameter Word No. of Bits Experiment Number 8 Physical Location Number of

  4. Measuring healthcare productivity - from unit to system level.

    Science.gov (United States)

    Kämäräinen, Vesa Johannes; Peltokorpi, Antti; Torkki, Paulus; Tallbacka, Kaj

    2016-04-18

    Purpose - Healthcare productivity is a growing issue in most Western countries where healthcare expenditure is rapidly increasing. Therefore, accurate productivity metrics are essential to avoid sub-optimization within a healthcare system. The purpose of this paper is to focus on healthcare production system productivity measurement. Design/methodology/approach - Traditionally, healthcare productivity has been studied and measured independently at the unit, organization and system level. Suggesting that productivity measurement should be done in different levels, while simultaneously linking productivity measurement to incentives, this study presents the challenges of productivity measurement at the different levels. The study introduces different methods to measure productivity in healthcare. In addition, it provides background information on the methods used to measure productivity and the parameters used in these methods. A pilot investigation of productivity measurement is used to illustrate the challenges of measurement, to test the developed measures and to prove the practical information for managers. Findings - The study introduces different approaches and methods to measure productivity in healthcare. Practical implications - A pilot investigation of productivity measurement is used to illustrate the challenges of measurement, to test the developed measures and to prove the practical benefits for managers. Originality/value - The authors focus on the measurement of the whole healthcare production system and try to avoid sub-optimization. Additionally considering an individual patient approach, productivity measurement is examined at the unit level, the organizational level and the system level.

  5. Overhead traveling crane vibration research using experimental wireless measuring system

    Directory of Open Access Journals (Sweden)

    Tomasz HANISZEWSKI

    2013-01-01

    Full Text Available The paper contains an operations and constructions description of theexperimental wireless measuring system for measuring accelerations in bridge cranes,based on PHIDGET 1056 sensors. Developed experimental research and measuringmethodology allows the use of the proposed wireless system on other cranesconstructions. The paper also shows examples of the results of vibration measurementsand FFT spectra, obtained on the basis of accelerations measurements.

  6. Comparison of Disease Activity Score in 28 joints with ESR (DAS28), Clinical Disease Activity Index (CDAI), Health Assessment Questionnaire Disability Index (HAQ-DI) & Routine Assessment of Patient Index Data with 3 measures (RAPID3) for assessing disease activity in patients with rheumatoid arthritis at initial presentation.

    Science.gov (United States)

    Kumar, B Siddhartha; Suneetha, P; Mohan, Alladi; Kumar, D Prabath; Sarma, K V S

    2017-11-01

    In patients with rheumatoid arthritis (RA), disease severity assessment is done using Disease Activity Score in 28 joints with ESR (DAS28). Computing DAS28 is time-consuming, requires laboratory testing and an online calculator. There is a need to validate rapid methods of disease severity assessment for routine daily use. This study was conducted to compare DAS28, Clinical Disease Activity Index (CDAI), Health Assessment Questionnaire Disability Index (HAQ-DI) and Routine Assessment of Patient Index Data with 3 measures (RAPID3) to assess the disease activity in patients with RA. We prospectively studied the utility of CDAI, HAQ-DI and RAPID3 scoring in 100 consecutive newly diagnosed, disease modifying antirheumatic drugs (DMARDs) naïve adult patients with RA seen during January 2013 and June 2014 at a tertiary care teaching hospital in south India. The mean age of the patients was 42.1±11.6 yr, there were 82 females. The median [interquartile range (IQR)] symptom duration was 6 (range 4-12) months. The median (IQR) DAS28, CDAI, HAQ-DI and RAPID3 scores at presentation were 7 (6-7), 36 (28-43), 2 (1-2) and 17 (13-19), respectively. A significant positive correlation was observed between DAS28 and CDAI (r=0.568; Pfair' agreement was observed in between DAS28 and CDAI (kappa-statistic=0.296). The agreement between DAS28 and HAQ-DI (kappa-statistic=0.007) and RAPID3 (kappa-statistic=0.072) was less robust. In adult patients with RA, in the setting where illiteracy is high, CDAI emerged as the preferred choice for rapid assessment of severity of disease at the time of initial presentation.

  7. Automatic measurement system for light element isotope analysis

    International Nuclear Information System (INIS)

    Satake, Hiroshi; Ikegami, Kouichi.

    1990-01-01

    The automatic measurement system for the light element isotope analysis was developed by installing the specially designed inlet system which was controlled by a computer. The microcomputer system contains specific interface boards for the inlet system and the mass spectrometer, Micromass 602 E. All the components of the inlet and the computer system installed are easily available in Japan. Ten samples can be automatically measured as a maximum of. About 160 minutes are required for 10 measurements of δ 18 O values of CO 2 . Thus four samples can be measured per an hour using this system, while usually three samples for an hour using the manual operation. The automatized analysis system clearly has an advantage over the conventional method. This paper describes the details of this automated system, such as apparatuses used, the control procedure and the correction for reliable measurement. (author)

  8. Validity and reliability of self-reported weight and height measures for the diagnoses of adolescent's nutritional status Validade e confiabilidade das medidas referidas de peso e estatura para o diagnóstico do estado nutricional de adolescents

    Directory of Open Access Journals (Sweden)

    Carla Cristina Enes

    2009-12-01

    Full Text Available PURPOSE: To assess the validity and reliability of self-reported height, weight, and Body Mass Index (BMI to diagnose the nutritional status of adolescents. METHODS: The study included 360 public school students of both genders, with ages ranging from 10 to 15 years. Adolescents self-reported their weight and height, and these values were later obtained directly by interviewers. The validity of BMI based on self-reported measures was calculated using sensitivity and specificity indexes, and positive predictive value (PPV. Agreement between self-reported and measured BMI was evaluated using Kappa's weight coefficient, the Lin correlation coefficient, and Bland-Altman and Lin's plots. RESULTS: Both girls and boys underestimated their weight (-1.0 girls and boys and height (girls - 1.2 and boys - 0.8 (p OBJETIVO: Avaliar a validade do peso, estatura e Índice de Massa Corporal (IMC referidos e sua confiabilidade para o diagnóstico do estado nutricional de adolescentes de Piracicaba. MÉTODOS: Participaram do estudo 360 adolescentes de ambos os sexos, de escolas públicas de Piracicaba, com idade entre 10 e 15 anos. Os adolescentes auto-relataram seu peso e estatura, sendo esses valores obtidos por medidas diretas, logo em seguida, pelos entrevistadores. A validade do IMC referido foi calculada segundo índices de sensibilidade, especificidade e valor preditivo positivo (VPP. Avaliou-se a concordância entre as categorias de IMC obtido por meio das medidas referidas e aferidas a partir do coeficiente kappa ponderado, coeficiente de correlação de Lin. e gráficos de Bland e Altman e Lin. RESULTADOS: Verificou-se que tanto os meninos quanto as meninas subestimaram o peso (-1,0 meninas e meninos e a estatura (meninas -1,2 e meninos -0,8 (p < 0,001. Os valores de IMC aferidos e referidos apresentaram uma concordância moderada. A sensibilidade do IMC referido para classificar os indivíduos obesos foi maior para os meninos (87,5%, enquanto a

  9. Processing Approaches for DAS-Enabled Continuous Seismic Monitoring

    Science.gov (United States)

    Dou, S.; Wood, T.; Freifeld, B. M.; Robertson, M.; McDonald, S.; Pevzner, R.; Lindsey, N.; Gelvin, A.; Saari, S.; Morales, A.; Ekblaw, I.; Wagner, A. M.; Ulrich, C.; Daley, T. M.; Ajo Franklin, J. B.

    2017-12-01

    Distributed Acoustic Sensing (DAS) is creating a "field as laboratory" capability for seismic monitoring of subsurface changes. By providing unprecedented spatial and temporal sampling at a relatively low cost, DAS enables field-scale seismic monitoring to have durations and temporal resolutions that are comparable to those of laboratory experiments. Here we report on seismic processing approaches developed during data analyses of three case studies all using DAS-enabled seismic monitoring with applications ranging from shallow permafrost to deep reservoirs: (1) 10-hour downhole monitoring of cement curing at Otway, Australia; (2) 2-month surface monitoring of controlled permafrost thaw at Fairbanks, Alaska; (3) multi-month downhole and surface monitoring of carbon sequestration at Decatur, Illinois. We emphasize the data management and processing components relevant to DAS-based seismic monitoring, which include scalable approaches to data management, pre-processing, denoising, filtering, and wavefield decomposition. DAS has dramatically increased the data volume to the extent that terabyte-per-day data loads are now typical, straining conventional approaches to data storage and processing. To achieve more efficient use of disk space and network bandwidth, we explore improved file structures and data compression schemes. Because noise floor of DAS measurements is higher than that of conventional sensors, optimal processing workflow involving advanced denoising, deconvolution (of the source signatures), and stacking approaches are being established to maximize signal content of DAS data. The resulting workflow of data management and processing could accelerate the broader adaption of DAS for continuous monitoring of critical processes.

  10. Charge measurement system at 100 MeV linac

    International Nuclear Information System (INIS)

    Li Dongmei; Chinese Academy of Sciences, Beijing; Yin Chongxian; Ye Kairong

    2005-01-01

    A charge measurement system of 100 Mev linac is introduced in this paper. After describing the characteristics and functions of the system's components, the authors analyze the methods of data processing and systematic error in detail. Basing on these, the authors get system resolution in the lab. The actual measurement results are presented at last. (authors)

  11. 20 CFR 435.15 - Metric system of measurement.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Metric system of measurement. 435.15 Section 435.15 Employees' Benefits SOCIAL SECURITY ADMINISTRATION UNIFORM ADMINISTRATIVE REQUIREMENTS FOR... metric system is the preferred measurement system for U.S. trade and commerce. The Act requires each...

  12. Computerized x-ray radiographic system for fuel pellet measurements

    International Nuclear Information System (INIS)

    Green, D.R.; Karnesky, R.A.; Bromley, C.

    1977-01-01

    The development and operation of a computerized system for determination of fuel pellet diameters from x-ray radiography is described. Actual fuel pellet diameter measurements made with the system are compared to micrometer measurements on the same pellets, and statistically evaluated. The advantages and limitations of the system are discussed, and recommendations are made for further development

  13. O STF e a construção institucional das autoridades reguladoras do financeiro: um estudo de caso das ADIns The Brazilian Supreme Court and the institutional design of the public authorities of the National Financial System: an ADIns' empirical study

    Directory of Open Access Journals (Sweden)

    Camila Duran-Ferreira

    2009-06-01

    Full Text Available Este artigo pretende avaliar a atuação da corte constitucional brasileira, o Supremo Tribunal Federal, como verdadeiro ator no desenho institucional das autoridades reguladoras do sistema financeiro nacional, o Conselho Monetário Nacional (CMN e o Banco Central do Brasil (BCB. Sua interação com os poderes políticos, por meio do julgamento de Ações Diretas de Inconstitucionalidade (ADIns, ao longo dos últimos 20 anos, forneceu balizas jurídicas para a construção dessas autoridades. Esta pesquisa, que parte de uma análise qualitativa das decisões do Tribunal como estudo de caso, mapeou os temas e atores interessados na regulação do sistema financeiro e na estrutura dessas entidades, assim como procurou demonstrar como a atuação da corte reforçou a competência normativa desses órgãos. Ao final, este artigo delineia parâmetros para eventual edição de futura legislação, que vise regular o sistema financeiro, revogando a Lei 4594 de 1964, e conceder eventual autonomia ao Banco Central do Brasil.The purpose of this study is to analyse the manner the Brazilian Supreme Court's (Supremo Tribunal Federal - STF decisions have influenced the institutional design of the national monetary council and the Brazilian Central Bank. During the last 20 years, STF provided limits to the power of these public authorities, by judging Direct Actions of Unconstitutionality (ADIns. This research is based on empirical study that intends to identify the actors and the issues submitted to the court and how its decision enforced their power of regulating the financial system. As a result, it is possible to perceive directions to enact the law that intends to regulate the financial system and eventually to attribute the independence to the Brazilian Central Bank.

  14. New Protective Measures for Cooling Systems

    International Nuclear Information System (INIS)

    Carter, D. Anthony; Nonohue, Jonh M.

    1974-01-01

    Cooling water treatments have been updated and improved during the last few years. Particularly important are the nontoxic programs which conform plant cooling water effluents to local water quality standards without expenditures for capital equipment. The relationship between scaling and corrosion in natural waters has been recognized for many years. This relationship is the basis for the Langelier Saturation Index control method which was once widely applied to reduce corrosion in cooling water systems. It used solubility characteristics to maintain a very thin deposit on metal surfaces for preventing corrosion. This technique was rarely successful. That is, the solubility of calcium carbonate and most other inorganic salts depends on temperature. If good control exists on cold surfaces, excessive deposition results on the heat transfer tubes. Also, because water characteristic normally vary in a typical cooling system, precise control of scaling at both hot and cold surfaces is virtually impossible

  15. Laboratory testing & measurement on optical imaging systems

    CSIR Research Space (South Africa)

    Theron, B

    2013-04-01

    Full Text Available on Optical Imaging Systems Bertus Theron 27 April 2013 presented at SIECPC 2013, Riyadh, Saudi Arabia Overview of Workshop Part 1. Introduction & Context  Some history of Arabic Optics  Context: Global vs Local optical testing... of Arabic Optics 1 See [4]  Arabic records of study of geometrical optics  Traced to Hellenistic (Greek) optics  Translated to Arabic  9th century  Arabic contribution to geometric optics  Not just translation to Arabic  Innovative research...

  16. Human Characteristics and Measures in Systems Design

    Science.gov (United States)

    2003-01-01

    cause) death ( Lazarus and Folkman , 1984). All living organisms respond to stress. The term stress (or stressor) is used in a variety of ways and can... Lazarus , R. S., and Folkman , S. (1984). Stress, Appraisal and Coping. New York: Springer. Leger, A, Aymeric, B., Audrezet, H., and Alba, P. (October...stress response system has been eloquent!: y ¥operationalized by Seyle (1937, 1975) using his general adaptation syfldrome (GAS), whiah is divided into

  17. Measurement system performance during cold checkout runs at the BNFP

    International Nuclear Information System (INIS)

    Ehinger, M.H.; Crawford, J.M.

    1978-01-01

    The measurement systems in a complex nuclear fuel plant such as the Barnwell Nuclear Fuel Plant rely on capabilities to remotely measure solution quantities and determine the nuclear material content of these solutions. During recent testing activities using natural uranium, a major objective of the NMC group was to demonstrate these solution measurement capabilities. Installed measurement systems at the BNFP use the most recent innovations in measurement equipment and techniques for remote solution measurement. This paper presents the measurement methods and results of the tests and evaluations. 6 figures

  18. Measurement system for diffraction efficiency of convex gratings

    Science.gov (United States)

    Liu, Peng; Chen, Xin-hua; Zhou, Jian-kang; Zhao, Zhi-cheng; Liu, Quan; Luo, Chao; Wang, Xiao-feng; Tang, Min-xue; Shen, Wei-min

    2017-08-01

    A measurement system for diffraction efficiency of convex gratings is designed. The measurement system mainly includes four components as a light source, a front system, a dispersing system that contains a convex grating, and a detector. Based on the definition and measuring principle of diffraction efficiency, the optical scheme of the measurement system is analyzed and the design result is given. Then, in order to validate the feasibility of the designed system, the measurement system is set up and the diffraction efficiency of a convex grating with the aperture of 35 mm, the curvature-radius of 72mm, the blazed angle of 6.4°, the grating period of 2.5μm and the working waveband of 400nm-900nm is tested. Based on GUM (Guide to the Expression of Uncertainty in Measurement), the uncertainties in the measuring results are evaluated. The measured diffraction efficiency data are compared to the theoretical ones, which are calculated based on the grating groove parameters got by an atomic force microscope and Rigorous Couple Wave Analysis, and the reliability of the measurement system is illustrated. Finally, the measurement performance of the system is analyzed and tested. The results show that, the testing accuracy, the testing stability and the testing repeatability are 2.5%, 0.085% and 3.5% , respectively.

  19. Accuracy of the photogrametric measuring system for large size elements

    Directory of Open Access Journals (Sweden)

    M. Grzelka

    2011-04-01

    Full Text Available The aim of this paper is to present methods of estimating and guidelines for verifying the accuracy of optical photogrammetric measuringsystems, using for measurement of large size elements. Measuring systems applied to measure workpieces of a large size which oftenreach more than 10000mm require use of appropriate standards. Those standards provided by the manufacturer of photogrammetricsystems are certified and are inspected annually. To make sure that these systems work properly there was developed a special standardVDI / VDE 2634, "Optical 3D measuring systems. Imaging systems with point - by - point probing. " According to recommendationsdescribed in this standard research on accuracy of photogrametric measuring system was conducted using K class gauge blocks dedicatedto calibrate and test accuracy of classic CMMs. The paper presents results of research of estimation the actual error of indication for sizemeasurement MPEE for photogrammetric coordinate measuring system TRITOP.

  20. ABC of floor heating systems. Planning, installation, operation. A compendium for architects, building and heating system designers, trade, heating engineers and technicians, and floor finishers and tile setters. Das ABC der Warmwasser-Fussbodenheizung. Planung, Ausfuehrung, Betrieb. Ein Kompendium fuer Architekten, Bau- und Heizungsplaner, Fachhandel, Heizungsbauer, Installateure sowie das Estrich- und Fliesenleger-Handwerk

    Energy Technology Data Exchange (ETDEWEB)

    Radtke, U

    1984-01-01

    40 illustrated chapters give detailed technical information on subjects such as floor heating systems; plastic and metal pipes; the dynamic behaviour and working properties of plastic tubes; oxygen diffusion (restrictive measures); insulation materials; thermal insulation and noise pollution abatement; floor pavements; structure of heated floors; flooring materials; thermal physics of floor heating systems; determination of thermal outputs; control of floor heating systems; distributors; pipe joints/connections; tools; antifreezes; expertises and damage - practical experiences; floor heating systems from the medical point of view; dispatch of orders; legal requirements of floor heating systems; standards and regulations. (HWJ).

  1. Leak rate measurements and detection systems

    International Nuclear Information System (INIS)

    Kupperman, D.; Shack, W.J.; Claytor, T.

    1983-10-01

    A research program is under way to evaluate and develop improve leak detection systems. The primary focus of the work has been on acoustic emission detection of leaks. Leaks from artificial flaws, laboratory-generated IGSCCs and thermal fatigue cracks, and field-induced intergranular stress corrosion cracks (IGSCCs) from reactor piping have been examined. The effects of pressure, temperature, and leak rate and geometry on the acoustic signature are under study. The use of cross-correlation techniques for leak location and pattern recognition and autocorrelation for source discrimination is also being considered

  2. Einstein-Podolsky-Rosen paradox and measurement of quantum system

    OpenAIRE

    Kladko, Konstantin

    1999-01-01

    Einstein-Podolsky-Rosen (EPR) paradox is considered in a relation to a measurement of an arbitrary quantum system . It is shown that the EPR paradox always appears in a gedanken experiment with two successively joined measuring devices.

  3. CAMEX-3 DC-8 METEOROLOGICAL MEASUREMENT SYSTEM (MMS) V1

    Data.gov (United States)

    National Aeronautics and Space Administration — The CAMEX-3 Meteorological Measurement System (MMS) dataset consists of atmospheric parameters measured by the MMS instruments aboard NASA DC-8 aircraft. The MMS...

  4. A Raspberry Pi Based Portable Endoscopic 3D Measurement System

    Directory of Open Access Journals (Sweden)

    Jochen Schlobohm

    2016-07-01

    Full Text Available Geometry measurements are very important to monitor a machine part’s health and performance. Optical measurement system have several advantages for the acquisition of a parts geometry: measurement speed, precision, point density and contactless operation. Measuring parts inside of assembled machines is also desirable to keep maintenance cost low. The Raspberry Pi is a small and cost efficient computer that creates new opportunities for compact measurement systems. We have developed a fringe projection system which is capable of measuring in very limited space. A Raspberry Pi 2 is used to generate the projection patterns, acquire the image and reconstruct the geometry. Together with a small LED projector, the measurement system is small and easy to handle. It consists of off-the-shelf products which are nonetheless capable of measuring with an uncertainty of less than 100 μ m .

  5. Multi-channel temperature measurement system for automotive battery stack

    Science.gov (United States)

    Lewczuk, Radoslaw; Wojtkowski, Wojciech

    2017-08-01

    A multi-channel temperature measurement system for monitoring of automotive battery stack is presented in the paper. The presented system is a complete battery temperature measuring system for hybrid / electric vehicles that incorporates multi-channel temperature measurements with digital temperature sensors communicating through 1-Wire buses, individual 1-Wire bus for each sensor for parallel computing (parallel measurements instead of sequential), FPGA device which collects data from sensors and translates it for CAN bus frames. CAN bus is incorporated for communication with car Battery Management System and uses additional CAN bus controller which communicates with FPGA device through SPI bus. The described system can parallel measure up to 12 temperatures but can be easily extended in the future in case of additional needs. The structure of the system as well as particular devices are described in the paper. Selected results of experimental investigations which show proper operation of the system are presented as well.

  6. Electro optical system to measure strains

    Science.gov (United States)

    Sciammarella, C. A.; Bhat, G.

    With the advent of the so called speckle interferometry, interferograms of objects can be obtained in real time by using a TV camera as the recording medium. The basic idea of this instrument is to couple the photoelectric registration by a TV camera with the subsequent electronic processing, to develop an efficient device for the measurement of deformations. This paper presents a new and improved instrument, which has a very important feature, portability, that can be operated in different modes and is capable of producing interferograms using holography, speckle, and moire methods. The basic features of the instrument are presented and some of the theoretical points at the foundation of operation of the instrument are analyzed. Examples are given of the application to moire, speckle, and holographic interferometry.

  7. Das Konzept des 'Medialen Habitus'

    Directory of Open Access Journals (Sweden)

    Sven Kommer

    2013-12-01

    Full Text Available Sven Kommer fragt in seinem Beitrag, inwieweit das Habitus-Konzept als Erklärungsmuster für die beobachtbare Zementierung sozialer Ungleichheit im Schulsystem greift. Dabei konstatiert der Beitrag, dass alle an der Weiterschreibung des Habitus-Konzepts beteiligten AutorInnen sich darin einig sind, dass es wichtige Beiträge für die Selbst-Aufklärung einer weitestgehend mediatisierten Gesellschaft leistet. Der Artikel geht dabei – auch angesichts der PISA-Studien – von dem empirischen Befund aus, dass die individuelle Ausprägung der Medienkompetenz aufs engste mit den Ressourcen des Elternhauses verbunden ist und sich dabei die elterlichen Formen der Medienerziehung unübersehbar mit den aktuellen medialen Handlungspraxen verbinden. Dieser Befund deckt sich auf weite Strecken auch mit den Ergebnissen der Bildungssoziologie Pierre Bourdieus, weshalb die Diskussionen zum medialen Habitus im Rahmen dieser Ausführungen auch mit empirischen Argumenten unterfüttert werden. Ganz in diesem Sinne arbeitet der Artikel auch heraus, dass die aus dem Kontext der Cultural Studies stammenden Thesen zur Nivellierung kultureller Milieu-Unterschiede wenig empirisch fundiert sind. Der Artikel betont dahingehend, dass hier eine unreflektierte Infiltration durch genuin neoliberales Gedankengut vorliegt, da mit ihr auch die Annahme einer "freien Wahl" von Lebensweg, Milieuzugehörigkeit oder Gender verbunden werden kann. Dabei wir auch eingehend der "Clash of Habitus" diskutiert, der zwischen Lehrenden und Lernenden stattfindet und das Augenmerk ein Mal mehr auf die Tatsache lenkt, das unser Bildungssystem auf dieser pädagogisch relevanten Ebene durch soziale Ungleichheiten gekennzeichnet ist. In his essay, Sven Kommer questions whether the notion of habitus is suitable to support the understanding of the obvious consolidation of inequality in the school system. He shows that all authors active in the continued use of the notion of habitus agree that it

  8. Measurement of resilience and its application to enterprise information systems

    Science.gov (United States)

    Wang, J. W.; Gao, F.; Ip, W. H.

    2010-05-01

    In this article, we present a measure for resilience in the context of enterprise information systems or service systems in a more general sense. Resilience of the system is a property of the system, which focuses on the recovery ability of the system after a partial damage of the system. Enterprise information systems such as enterprise resource planning, supply chain management, customer relationship management, manufacturing execution system, etc. play a critical role in the daily operation of modern enterprises by timely and sustainable delivery of information. Therefore, resilience is especially important for the enterprise information systems. The proposed measure for resilience is based on the recovery ability of the system, which departs from the existing approaches in literature and presents a unique contribution. An example is given to illustrate how the proposed measure works.

  9. Wireless Fluid-Level Measurement System Equips Boat Owners

    Science.gov (United States)

    2008-01-01

    While developing a measurement acquisition system to be used to retrofit aging aircraft with vehicle health monitoring capabilities, Langley Research Center developed an innovative wireless fluid-level measurement system. The NASA technology was of interest to Tidewater Sensors LLC, of Newport News, Virginia, because of its many advantages over conventional fuel management systems, including its ability to provide an accurate measurement of volume while a boat is experiencing any rocking motion due to waves or people moving about on the boat. These advantages led the company to license this novel fluid-level measurement system from NASA for marine applications.

  10. An automatic tension measurement system of MWPC wires

    International Nuclear Information System (INIS)

    D'Antone, I.; Lolli, M.; Torromeo, G.

    1992-01-01

    An electronic system is presented for automatic mechanical tension measurement to test wire chambers. The developed system works in the tension range from 50 g to 300 g; this large working range is obtained by using a microcontroller that performs a digital control on the bridge of an oscillator containing the wire of which the tension has to be measured. The microcontroller automatically brings the system towards the oscillation condition and subsequently, measuring the frequency, it evaluates, displays and sends to a host computer the value of the mechanical tension of the wires. The system is precise and allows fast measurements. A description of the hardware and software design is given. (orig.)

  11. Operators manual for a computer controlled impedance measurement system

    Science.gov (United States)

    Gordon, J.

    1987-02-01

    Operating instructions of a computer controlled impedance measurement system based in Hewlett Packard instrumentation are given. Hardware details, program listings, flowcharts and a practical application are included.

  12. Neutron flux measuring system for nuclear reactor

    International Nuclear Information System (INIS)

    Aoki, Kazuo.

    1977-01-01

    Purpose: To avoid the generation of an undesired scram signal due to abrupt changes in the neutron level given to the detectors disposed near the boundary between the moderator and the atmosphere. Constitution: In a nuclear reactor adapted to conduct power control by the change of the level in the moderator such as heavy water, the outputs from the neutron detectors disposed vertically are averaged and the nuclear reactor is scramed corresponding to the averaged value. In this system, moderator level detectors are additionally provided to the nuclear reactor and their outputs, moderator level signal, are sent to a power averaging device where the output signals of the neutron detectors are judged if they are delivered from neutrons in the moderator or not depending on the magnitude of the level signal and the outputs of the detectors out of the moderator are substantially excluded. The reactor interlock signal from the device is utilized as a scram signal. (Seki, T.)

  13. Radiation internal exposure measurements archiving system (REMAS)

    International Nuclear Information System (INIS)

    Bitar, A.; Maghrabi, M.

    2013-01-01

    This paper describes a personal-computer-based software, REMAS, which helps users to estimate intake activity and resulting internal doses for all radionuclides existing in (International Commission on Radiological Protection) ICRP 78 and other important elements. In addition to its use in internal dose calculations, it facilitates management of data of monitored persons who are occupationally exposed to unsealed radioactive substances. Furthermore, REMAS offers the possibility to generate different reports of results. The program is suitable for laboratories working in the field of assessment of occupational intake and also for users of radioactive material who are routinely monitored. REMAS, which is bilingual program (English and Arabic), was built with GUI environment and was developed using Microsoft FoxPro. It runs on Microsoft Windows XP operating systems. (authors)

  14. Statistical analysis of complex systems with nonclassical invariant measures

    KAUST Repository

    Fratalocchi, Andrea

    2011-01-01

    I investigate the problem of finding a statistical description of a complex many-body system whose invariant measure cannot be constructed stemming from classical thermodynamics ensembles. By taking solitons as a reference system and by employing a

  15. Lageroptimierung 2.0: Das Online-WMS

    OpenAIRE

    Wolf, Oliver; Geißen, Tim; Rahn, Jonas; Haselberger, Julia

    2012-01-01

    Das Fraunhofer-Institut für Materialfluss und Logistik IML unterstützt zahlreiche Unternehmen sowohl bei der Auswahl des richtigen Warehouse Management Systems als auch durch die Entwicklung einer Plattform, die das Anbieten, Mieten und Anwenden logistischer IT-Unterstützung in der Cloud möglich macht. Von »warehouse logistics« zur »Logistics Mall« - vom konventionell betriebenen Warehouse Management System zum WMS aus der Steckdose.

  16. Competitiveness measurement system in the advertising sector.

    Science.gov (United States)

    Poveda-Bautista, Rocío; García-Melón, Mónica; Baptista, Doris C

    2013-01-01

    In this paper a new approach to find indicators that can be used to measure companies' competitiveness and performance in an efficient and reliable way is presented. The aim is to assist managers of companies within a specific industrial sector by providing information about their relative position in the market so as to define better action plans that may improve the company's performance. The approach combines the use of the Analytic Network Process, a multicriteria decision method, with the Balanced Scorecard. It allows the definition of a number of competitiveness indicators based on the performance and setting of the advertising sector. In this way it is possible to obtain a Competitiveness Index that allows a company to know its relative position with respect to other companies in the sector, and establish a ranking of the companies ordered by their competitiveness level. A case study in the advertising industry of Venezuela is provided. Results show that improvement plans for the agencies analyzed should promote creativity, innovation and the use of new technologies, as a particular form of innovation. These factors were considered to be the most relevant indicators in the advertising sector. The participating experts agreed that the methodology is useful and an improvement over current competitiveness assessment methods.

  17. New measuring and protection system at VR-1 training reactor

    International Nuclear Information System (INIS)

    Kropik, M.; Jurickova, M.

    2006-01-01

    The contribution describes the new measuring and protection system of the VR-1 training reactor. The measuring and protection system upgrade is an integral part of the reactor I and C upgrade. The new measuring and protection system of the VR-1 reactor consists of the operational power measuring and the independent power protection systems. Both systems measure the reactor power and power rate, initiate safety action if safety limits are exceeded and send data (power, power rate, status, etc.) to the reactor control system. The operational power measuring system is a full power range system that receives signal from a fission chamber. The signal is evaluated according to the reactor power either in the pulse or current mode. The current mode utilizes the DC current and Campbell techniques. The new independent power protection system operates in the two highest reactor power decades. It receives signals from a boron chamber and evaluates it in the pulse mode. Both systems are computer based. The operational power measuring and independent power protection systems are diverse - different types and location of chambers, completely different hardware, software algorithms for the power and power rate calculations, software development tools and teems for the software manufacturing. (author)

  18. Impacto das ações de imunização pelo Programa Saúde da Família na mortalidade infantil por doenças evitáveis em Olinda, Pernambuco, Brasil Impact of immunization measures by the Family Health Program on infant mortality from preventable diseases in Olinda, Pernambuco State, Brazil

    Directory of Open Access Journals (Sweden)

    Tânia Maria Rocha Guimarães

    2009-04-01

    Full Text Available Este artigo aborda o impacto do Programa Saúde da Família (PSF na saúde infantil no Município de Olinda, Pernambuco, Brasil, por meio da avaliação da vacinação e mortalidade infantil por causas evitáveis. Realizou-se um estudo de série temporal com os dados dos principais sistemas de informação em saúde, usando-se a análise dos indicadores ex-ante e ex-post da implantação do PSF, em 1995. A variável independente foi o ano de nascimento relacionado com grau de cobertura da população pelo PSF. Analisou-se três períodos: 1990/1994 (anterior, 1995/1996 (implantação: cobertura de 0% a 30%, 1997/2002 (intervenção: cobertura de 38,6% a 54%. A tendência dos indicadores foi analisada pela regressão linear simples, sendo testada a significância pelo teste t. No período de implantação houve aumento de todas as médias das coberturas vacinais (176% BCG, 223% pólio, 52% DPT, 61% sarampo e redução da mortalidade infantil por causas evitáveis (12,7 óbitos/ano, mesmo não havendo diminuição da pobreza absoluta no município ou aumento das coberturas das redes públicas de saúde nem de esgotamento. A melhoria nos indicadores demonstra a efetividade das ações do PSF no município.This article analyzes the impact of the Family Health Program (FHP on infant health in Olinda, Pernambuco State, Brazil, evaluating immunization and infant mortality from vaccine-preventable diseases. A time-series study was conducted with data from the principal health information systems, analyzing indicators before and after implementation of the FHP in 1995. The independent variable was year of birth, related to degree of population coverage by the FHP. Three periods were analyzed: 1990-1994 (prior, 1995-1996 (implementation phase: 0 to 30% coverage, and 1997-2002 (intervention: coverage of 38.6% to 54%. Trends in the indicators were analyzed by simple linear regression, testing significance with the t test. During the implementation period

  19. Design techniques for large scale linear measurement systems

    International Nuclear Information System (INIS)

    Candy, J.V.

    1979-03-01

    Techniques to design measurement schemes for systems modeled by large scale linear time invariant systems, i.e., physical systems modeled by a large number (> 5) of ordinary differential equations, are described. The techniques are based on transforming the physical system model to a coordinate system facilitating the design and then transforming back to the original coordinates. An example of a three-stage, four-species, extraction column used in the reprocessing of spent nuclear fuel elements is presented. The basic ideas are briefly discussed in the case of noisy measurements. An example using a plutonium nitrate storage vessel (reprocessing) with measurement uncertainty is also presented

  20. Desvelando a Internet das Coisas

    Directory of Open Access Journals (Sweden)

    Lucia Santaella

    2013-12-01

    Full Text Available O presente artigo pretende relatar as origens da Internet das Coisas, seu estado de arte e evidenciar seus principais vetores. Para tal, o estudo percorrerá as eras midiáticas de Santaella (2007, p. 179-189, a par da discussão das máquinas de Turing, da arquitetura Von Neumann até chegar à Internet e seu estado atual, implementada nas coisas.

  1. Efficiency criteria for high reliability measured system structures

    International Nuclear Information System (INIS)

    Sal'nikov, N.L.

    2012-01-01

    The procedures of structural redundancy are usually used to develop high reliability measured systems. To estimate efficiency of such structures the criteria to compare different systems has been developed. So it is possible to develop more exact system by inspection of redundant system data unit stochastic characteristics in accordance with the developed criteria [ru

  2. A multichannel analyzer computer system for simultaneously measuring 64 spectra

    International Nuclear Information System (INIS)

    Jin Yuheng; Wan Yuqing; Zhang Jiahong; Li Li; Chen Guozhu

    2000-01-01

    The author introduces a multichannel analyzer computer system for simultaneously measuring 64 spectra with 64 coded independent inputs. The system is developed for a double chopper neutron scattering time-of-flight spectrometer. The system structure, coding method, operating principle and performances are presented. The system can also be used for other nuclear physics experiments which need multichannel analyzer with independent coded inputs

  3. System for measuring the proton polarization in a polarized target

    International Nuclear Information System (INIS)

    Karnaukhov, I.M.; Lukhanin, A.A.; Telegin, Yu.N.; Trotsenko, V.I.; Chechetenko, V.F.

    1984-01-01

    The system for measuring the proton polarization in a polarized target representing the high-sensitivity nuclear magnetic resonance (NMR) is described Q-meter with series connection and a circuit for measuring system resonance characteristic is used for NMR-absorption signal recording. Measuring coil is produced of a strip conductor in order to obtain uniform system sensitivity to polarization state in all target volume and improve signal-to-noise ratio. Polarization measuring system operates ion-line with the M-6000 computer. The total measuring error for the value of free proton polarization in target taking into account the error caused by local depolarization of working substance under irradiation by high-intense photon beam is <= 6%. Long-term application of the described system for measuring the proton polarization in the LUEh-20000 accelerator target used in the pion photoproduction experiments has demonstrated its high reliability

  4. Application research of tune measurement system in Hefei light source

    International Nuclear Information System (INIS)

    Sun Baogen; He Duohui; Xu Hongliang; Lu Ping; Wang Junhua; Gao Yunfeng; Wang Lin; Liu Jinying

    2002-01-01

    The author introduces the measurement and research of some beam parameters using tune measurement system for Hefei Light Source (HLS), which include the betatron tune, beta function, natural chromaticity, corrected chromaticity, and central frequency. Additionally, it also describes the measurement of the influence of DC clearing electrodes on the betatron tune shift and gives some measurement results. The measurement results are compared with the theoretical values and they are in good agreement

  5. Confiabilidade e validade das medidas da cifose torácica através do método flexicurva Reliability and validity of thoracic kyphosis measurements using flexicurve method

    Directory of Open Access Journals (Sweden)

    FA Teixeira

    2007-06-01

    Full Text Available CONTEXTUALIZAÇÃO: A hipercifose torácica é uma das alterações posturais mais comuns, sendo definida como um aumento da curvatura torácica no plano sagital da coluna vertebral. Uma cifose normal varia de 20 a 50º quando avaliada pelo método radiográfico de Cobb. O método radiográfico é o mais popular para mensuração da cifose, mas em função de ser um método caro e que expõe os sujeitos a radiação, não é o método mais adequado para acompanhamento periódico do paciente. Exames clínicos de rotina, como a avaliação fisioterapêutica da cifose torácica, devem ser válidos, confiáveis, sensíveis, práticos e baratos. OBJETIVOS: Verificar a validade concorrente e as confiabilidades intra e interavaliador das medidas de cifose torácica utilizando o Método Flexicurva. MÉTODOS: Estudo transversal em que a cifose torácica de 56 pessoas foi avaliada em radiografias sagitais da coluna torácica pelo método de Cobb e pelo Método Flexicurva por dois avaliadores. RESULTADOS: O coeficiente de correlação intraclasse (ICC entre as medidas pelo Cobb e pelo método Flexicurva foi de 0,906. A sensibilidade foi de 85%, a especificidade de 97% para diagnosticar a hipercifose torácica. CONCLUSÃO: O Método Flexicurva demonstra ser um parâmetro clínico quantitativo excelente para mensuração da curvatura da cifose torácica.BACKGROUND: Thoracic hyperkyphosis is one of the most common postural abnormalities. It is defined as increased thoracic curvature in the sagittal plan of the vertebral column. Normal kyphosis may range from 20º to 50º according to Cobb's radiographic method. The radiographic method is the most popular kyphosis measuring method, but because it is an expensive method and it exposes the individual to radiation, it is not the most appropriate method for periodic patient follow-up. Routine clinical examinations such as physiotherapeutic evaluation of thoracic kyphosis need to be valid, reliable, sensitive

  6. Folksonomia: a linguagem das tags

    Directory of Open Access Journals (Sweden)

    Juliana de Assis

    2013-01-01

    Full Text Available A radicalização do potencial colaborativo da web atual aponta uma tendência de personalização da recuperação da informação através de ferramentas que exploram a linguagem natural na representação e no compartilhamento de conteúdos ao longo das redes sociais. Tal configuração sócio-técnica traz desafios aos profissionais da informação tanto para a descrição e compreensão dos fenômenos informacionais que ocorrem neste âmbito, quanto para a elaboração de produtos e serviços voltados para um usuário que se apresenta cada vez mais como sujeito informacional ao assumir um papel ativo diante da complexidade que caracteriza a organização da informação em contextos digitais. Este artigo apresenta conclusões de pesquisa, relacionadas às analises da linguagem utilizada em três ambientes colaborativos que utilizam a folksonomia (Social Tagging Systems. A partir de uma perspectiva fundamentada na Semiótica e na Análise de Redes Sociais, são identificadas e descritas as principais manifestações da linguagem gerada e compartilhada pelas redes sociais através destes ambientes.

  7. System design description for surface moisture measurement system (SMMS)

    Energy Technology Data Exchange (ETDEWEB)

    Vargo, G.F.

    1996-09-23

    The SMMS has been developed to measure moisture in the top few centimeters of tank waste. The SMMS development was initiated by the preliminary findings of SAR-033, and does not necessarily fulfill any established DQO. After the SAR-033 is released, if no significant changes are made, moisture measurements in the organic waste tanks will rapidly become a DQO. The SMMS was designed to be installed in any 4 inch or larger riser, and to allow maximum adjustability for riser lengths, and is used to deploy a sensor package on the waste surface within a 6 foot radius about the azimuth. The first sensor package will be a neutron probe.

  8. Computer controlled scanning systems for quantitative track measurements

    International Nuclear Information System (INIS)

    Gold, R.; Roberts, J.H.; Preston, C.C.; Ruddy, F.H.

    1982-01-01

    The status of three computer cntrolled systems for quantitative track measurements is described. Two systems, an automated optical track scanner (AOTS) and an automated scanning electron microscope (ASEM) are used for scanning solid state track recorders (SSTR). The third system, the emulsion scanning processor (ESP), is an interactive system used to measure the length of proton tracks in nuclear research emulsions (NRE). Recent advances achieved with these systems are presented, with emphasis placed upon the current limitation of these systems for reactor neutron dosimetry

  9. 22 CFR 226.15 - Metric system of measurement.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Metric system of measurement. 226.15 Section 226.15 Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT ADMINISTRATION OF ASSISTANCE AWARDS TO U.S. NON-GOVERNMENTAL ORGANIZATIONS Pre-award Requirements § 226.15 Metric system of measurement. (a...

  10. Readiness to adopt a performance measurement system for ...

    African Journals Online (AJOL)

    Readiness to adopt a performance measurement system for substance abuse treatment: Findings from the Service Quality Measures initiative. ... system, findings show that the likelihood of adoption can be further increased through improved provider awareness and enhanced leadership support for this health innovation.

  11. EPOS1 - a multiparameter measuring system to earthquake prediction research

    Energy Technology Data Exchange (ETDEWEB)

    Streil, T.; Oeser, V. [SARAD GmbH, Dresden (Germany); Heinicke, J.; Koch, U.; Wiegand, J.

    1998-12-31

    The approach to earthquake prediction by geophysical, geochemical and hydrological measurements is a long and winding road. Nevertheless, the results show a progress in that field (e.g. Kobe). This progress is also a result of a new generation of measuring equipment. SARAD has developed a versatile measuring system (EPOS1) based on experiences and recent results from different research groups. It is able to record selected parameters suitable to earthquake prediction research. A micro-computer system handles data exchange, data management and control. It is connected to a modular sensor system. Sensor modules can be selected according to the actual needs at the measuring site. (author)

  12. A universal measuring and monitoring system for nuclear radiation

    International Nuclear Information System (INIS)

    Genrich, V.

    1988-01-01

    Genitron Instruments, Frankfurt/Main, committed themselves to revise the 'conventional' concept of counting tube metrology. The goal was to develop a modular system that would allow large-area measuring tasks. The contribution in hand explains this development, which consists of a highly integrated measuring head that can be combined with various detector types, and complemented by various system components, to form a universal measuring and monitoring system for nuclear radiation. This modular design concept is capable of fulfilling a multitude of tasks, ranging from single, specific applications to non-stop monitoring tasks within a large-area measuring network. (orig./DG) [de

  13. The Siegen automatic measuring system for track detectors: new developments

    International Nuclear Information System (INIS)

    Rusch, G.; Winkel, E.; Noll, A.; Heinrich, W.

    1991-01-01

    Starting twelve years ago we have developed completely automatic scanning and measuring systems for nuclear track detectors. The hardware and software of these systems have continuously been improved. They were used in different heavy ion and cosmic ray experiments. In this paper we describe methods for high resolution REL measurements in plastic nuclear track detectors and methods to scan and measure nuclear disintegration stars in AgCl detectors using an automatic measuring technique. The system uses a stepping motor driven microscope stage, a video camera and an image analysis computer based on a MC68020 microprocessor. (author)

  14. Accurately bearing measurement in non-cooperative passive location system

    International Nuclear Information System (INIS)

    Liu Zhiqiang; Ma Hongguang; Yang Lifeng

    2007-01-01

    The system of non-cooperative passive location based on array is proposed. In the system, target is detected by beamforming and Doppler matched filtering; and bearing is measured by a long-base-ling interferometer which is composed of long distance sub-arrays. For the interferometer with long-base-line, the bearing is measured accurately but ambiguously. To realize unambiguous accurately bearing measurement, beam width and multiple constraint adoptive beamforming technique is used to resolve azimuth ambiguous. Theory and simulation result shows this method is effective to realize accurately bearing measurement in no-cooperate passive location system. (authors)

  15. Innovative measurement for injection systems; Innovative Messtechnik fuer Einspritzsysteme

    Energy Technology Data Exchange (ETDEWEB)

    Janetzky, Bjoern; Majer, Clemens; Doell, Reinahrd [Robert Bosch GmbH, Stuttgart (Germany)

    2011-07-01

    The treatise introduces a new measuring method to determine the injection quantity and injection rate. In this method the change in pressure within a hydraulic chamber is measured during injection. Also the momentary pressure-dependent speed of sound of the medium inside the chamber is measured. With this information the desired injection quantity can be derived with high precision. A measuring technique (HDA) based on this method is described. Measurement with HDA are performed based on actual requirements from the Diesel-Injection-System, results from these measurements are presented in example. Results are compared with those achieved by using a known measuring technique (EMI). (orig.)

  16. A Secure System Architecture for Measuring Instruments in Legal Metrology

    Directory of Open Access Journals (Sweden)

    Daniel Peters

    2015-03-01

    Full Text Available Embedded systems show the tendency of becoming more and more connected. This fact combined with the trend towards the Internet of Things, from which measuring instruments are not immune (e.g., smart meters, lets one assume that security in measuring instruments will inevitably play an important role soon. Additionally, measuring instruments have adopted general-purpose operating systems to offer the user a broader functionality that is not necessarily restricted towards measurement alone. In this paper, a flexible software system architecture is presented that addresses these challenges within the framework of essential requirements laid down in the Measuring Instruments Directive of the European Union. This system architecture tries to eliminate the risks general-purpose operating systems have by wrapping them, together with dedicated applications, in secure sandboxes, while supervising the communication between the essential parts and the outside world.

  17. Grid Based Integration Technologies of Virtual Measurement System

    International Nuclear Information System (INIS)

    Zhang, D P; He, L S; Yang, H

    2006-01-01

    This paper presents a novel integrated architecture of measurement system for the new requirements of measurement collaboration, measurement resource interconnection and transparent access etc in the wide-area and across organization in the context of a grid. The complexity of integration on a grid arises from the scale, dynamism, autonomy, and distribution of the measurement resources. The main argument of this paper is that these complexities should be made transparent to the collaborative measurement, via flexible reconfigurable mechanisms and dynamic virtualization services. The paper is started by discussing the integration-oriented measurement architecture which provides collaborative measurement services to distributed measurement resources and then the measurement mechanisms are discussed which implements the transparent access and collaboration of measurement resources by providing protocols, measurement schedule and global data driven model

  18. Measurement system study using beta radiation for determining different paper superficial density

    International Nuclear Information System (INIS)

    Vieira, Thais Molina; Madi Filho, Tufic

    2000-01-01

    Radioisotopes are used now in some areas of the industry. For quality control purposes, they are used in non-destructive analysis (NDA) which is applied to the materials examination verifying if they are adequate to the patterns demanded by technical rules or the market. Gamma, beta or neutron radiation sources may be used to do NDA, depending on material to be analyzed and the industrial process. In this work, the study of measurement system applied to quality control area was conceived and, in the evaluation of the material in test, a radioactive beta source was used. A system was designed and mounted, using a plastic scintillator detector developed in the laboratories of the Centro de Tecnologia das Radiacoes from IPEN-CNEN/SP. Two beta sources were used in the operational test: 90 Sr/ 90 Y and 204 Tl. Measures were obtained using several paper samples with different superficial density in g/m 2 . With the results, an equation correlating the relative activity with the superficial density in g/m 2 was established. (author)

  19. Rating PV Power and Energy: Cell, Module, and System Measurements

    Energy Technology Data Exchange (ETDEWEB)

    Emery, Keith

    2016-06-02

    A summary of key points related to research-level measurements of current vs. voltage measurement theory including basic PV operation, equivalent circuit, and concept of spectral error; PV power performance including PV irradiance sensors, simulators and commercial and generic I-V systems; PV measurement artifacts, intercomparisons, and alternative rating methods.

  20. AMINA-chip : a miniaturized measurement system for ambient ammonia

    NARCIS (Netherlands)

    Timmer, Björn Herman

    2004-01-01

    The development of a miniaturized and integrated measurement system for gaseous ammonia is described in this thesis. The measuring principle, ¿AMINA¿, is an indirect method for selectively measuring ammonia that makes use of pH-transitions, electrolyte conductivity detection and phaseseparating

  1. Balanced Scorecard Based Performance Measurement & Strategic Management System

    OpenAIRE

    Permatasari, Paulina

    2006-01-01

    Developing strategy and performance measurement are an integral part of management control system. Making strategic decision about planning and controlling require information regarding how different subunits in organization work. To be effective, performance measurement, both financial and non-financial must motivate manager and employees at different levels to force goal accomplishment and organization strategic. An organization's measurement system strongly affects the behavior of people b...

  2. Computer Generated Hologram System for Wavefront Measurement System Calibration

    Science.gov (United States)

    Olczak, Gene

    2011-01-01

    Computer Generated Holograms (CGHs) have been used for some time to calibrate interferometers that require nulling optics. A typical scenario is the testing of aspheric surfaces with an interferometer placed near the paraxial center of curvature. Existing CGH technology suffers from a reduced capacity to calibrate middle and high spatial frequencies. The root cause of this shortcoming is as follows: the CGH is not placed at an image conjugate of the asphere due to limitations imposed by the geometry of the test and the allowable size of the CGH. This innovation provides a calibration system where the imaging properties in calibration can be made comparable to the test configuration. Thus, if the test is designed to have good imaging properties, then middle and high spatial frequency errors in the test system can be well calibrated. The improved imaging properties are provided by a rudimentary auxiliary optic as part of the calibration system. The auxiliary optic is simple to characterize and align to the CGH. Use of the auxiliary optic also reduces the size of the CGH required for calibration and the density of the lines required for the CGH. The resulting CGH is less expensive than the existing technology and has reduced write error and alignment error sensitivities. This CGH system is suitable for any kind of calibration using an interferometer when high spatial resolution is required. It is especially well suited for tests that include segmented optical components or large apertures.

  3. Implementation and rejection of industrial steam system energy efficiency measures

    International Nuclear Information System (INIS)

    Therkelsen, Peter; McKane, Aimee

    2013-01-01

    Steam systems consume approximately one third of energy applied at US industrial facilities. To reduce energy consumption, steam system energy assessments have been conducted on a wide range of industry types over the course of 5 years through the Energy Savings Assessment (ESA) program administered by the US Department of Energy (US DOE). ESA energy assessments result in energy efficiency measure recommendations that are given potential energy and energy cost savings and potential implementation cost values. Saving and cost metrics that measure the impact recommended measures will have at facilities, described as percentages of facility baseline energy and energy cost, are developed from ESA data and used in analyses. Developed savings and cost metrics are examined along with implementation and rejection rates of recommended steam system energy efficiency measures. Based on analyses, implementation of steam system energy efficiency measures is driven primarily by cost metrics: payback period and measure implementation cost as a percentage of facility baseline energy cost (implementation cost percentage). Stated reasons for rejecting recommended measures are primarily based upon economic concerns. Additionally, implementation rates of measures are not only functions of savings and cost metrics, but time as well. - Highlights: ► We examine uptake/rejection of industrial steam system energy efficiency measures. ► We examine metrics that correspond to uptake/rejection of recommended measures. ► We examine barriers hindering steam system energy efficiency measure implementation. ► Uptake/rejection of steam measures is linked to potential cost metrics. ► Increased uptake of measures and uptake of more costly measures increases with time

  4. Measured performance of four PWR liquid radioactive waste treatment systems

    International Nuclear Information System (INIS)

    McIsaac, C.V.; Mandler, J.W.; Stalker, A.C.

    1980-01-01

    This paper presents results of a study of the liquid radwaste treatment and boron recovery systems of four operating PWR power plants. The performance of a given system was determined from measurements of radionuclide inventories in samples drawn from demineralizers, evaporators, filters, and gaseous cleanup systems. The plants at which measurements were made are Fort Calhoun, Zion 1 and 2, Turkey Point 3 and 4, and Rancho Seco

  5. Development of a multichannel optical system for differential cortical measurement

    Science.gov (United States)

    Maki, Atsushi; Yamashita, Yuichi; Watanabe, Eiju; Koizumi, Hideaki

    1997-08-01

    A prototype system based on intensity-modulation spectroscopy (IMS) was produced with the goal of developing 'optoencephalography' as a new instrument for clinical application and for investigating human brain functions. This system can use dual wavelengths (787 and 827 nm) to simultaneously measure reflectances at 8 measurement positions on the human head. Using the system, we measured the changes in blood circulation and oxygenation changes caused by epileptic seizures and specific brain functions. The former measurements were made simultaneously with tests to determine the epileptic focus by using single-photon-emission computed tomography (SPECT) and electrodes set in the brian. Four measurement positions were fixed in each temporal region. The areas where cerebral blood flow increased, as observed by SPECT, corresponded to the positions where the regional cerebral blood volume (rCBV) increased, as measured by the IMS system. Furthermore, the timing of the epileptic seizures, as measured by the depth-electrodes, corresponded to the timing of the increase in rCBV measured by the prototype system. Our measurements of changes in blood circulation as a result of brain functions were made for motor functions to compare the differences between the right and left hemisphere in how they respond to specific functions. Four measurement positions were set in bilateral motor areas. Significant differences in blood circulation in connection with brain activities were observed between the right and left hemispheres.

  6. Acid dew point measurements in combustion gases using the dew point measuring system AH 85100

    Energy Technology Data Exchange (ETDEWEB)

    Fehler, D.

    1984-01-01

    Measuring system for continuous monitoring of the SO/sub 2//SO/sub 3/ dew point in the flue gas, characterized by a low failure rate, applicability inside the flue gas duct, maintenance-free continuous operation, and self-cleaning. The measuring principle is the cooling of the sensor element down to the 'onset condensation' message. Sensor surface temperatures are listed and evaluated as flue gas dew point temperatures. The measuring system is described. (DOMA).

  7. Current measurement system utilizing cryogenic techniques for the absolute measurement of the magnetic flux quantum

    International Nuclear Information System (INIS)

    Endo, T.; Murayama, Y.; Sakamoto, Y.; Sakuraba, T.; Shiota, F.

    1989-01-01

    A series of systems composed of cryogenic devices such as a Josephson potentiometer and a cryogenic current comparator has been proposed and developed to precisely measure a current with any value up to 1 A. These systems will be used to measure the injected electrical energy with an uncertainty of the order of 0.01 ppm or less in the absolute measurement of the magnetic flux quantum by superconducting magnetic levitation. Some preliminary experiments are described

  8. A computer-aided surface roughness measurement system

    International Nuclear Information System (INIS)

    Hughes, F.J.; Schankula, M.H.

    1983-11-01

    A diamond stylus profilometer with computer-based data acquisitions/analysis system is being used to characterize surfaces of reactor components and materials, and to examine the effects of surface topography on thermal contact conductance. The current system is described; measurement problems and system development are discussed in general terms and possible future improvements are outlined

  9. Life Cycle Thinking, Measurement and Management for Food System Sustainability.

    Science.gov (United States)

    Pelletier, Nathan

    2015-07-07

    Food systems critically contribute to our collective sustainability outcomes. Improving food system sustainability requires life cycle thinking, measurement and management strategies. This article reviews the status quo and future prospects for bringing life cycle approaches to food system sustainability to the fore.

  10. Radionuclide measuring systems and improved methods of evaluation for the measurement of wear in stationary and mobile systems

    International Nuclear Information System (INIS)

    Lausch, W.

    1976-01-01

    A newly developped flow through measuring unit makes it possible to perform continuous wear measurements on stationary and mobile systems. It was specifically designed for measurements on engine components of passenger cars. For tests of long duration an oil sampling technique was developed. Fully automated measurements are achieved with a sampling device suitable for both stationary and mobile systems. For systems with oil consumption a mathematical model provides for the necessary connection of the loss of wear particles through oil consumption. In certain cases an empirical graphical method can achieve nearly the same results. (orig.) [de

  11. Energy saving and recovery measures in integrated urban water systems

    Science.gov (United States)

    Freni, Gabriele; Sambito, Mariacrocetta

    2017-11-01

    The present paper describes different energy production, recovery and saving measures which can be applied in an integrated urban water system. Production measures are often based on the installation of photovoltaic systems; the recovery measures are commonly based on hydraulic turbines, exploiting the available pressure potential to produce energy; saving measures are based on substitution of old pumps with higher efficiency ones. The possibility of substituting some of the pipes of the water supply system can be also considered in a recovery scenario in order to reduce leakages and recovery part of the energy needed for water transport and treatment. The reduction of water losses can be obtained through the Active Leakage Control (ALC) strategies resulting in a reduction in energy consumption and in environmental impact. Measures were applied to a real case study to tested it the efficiency, i.e., the integrated urban water system of the Palermo metropolitan area in Sicily (Italy).

  12. Calibration of the CCD photonic measuring system for railway inspection

    Science.gov (United States)

    Popov, D. V.; Ryabichenko, R. B.; Krivosheina, E. A.

    2005-08-01

    Increasing of traffic speed is the most important task in Moscow Metro. Requirements for traffic safety grow up simultaneously with the speed increasing. Currently for track inspection in Moscow Metro is used track measurement car has built in 1954. The main drawbacks of this system are absence of automated data processing and low accuracy. Non-contact photonic measurement system (KSIR) is developed for solving this problem. New track inspection car will be built in several months. This car will use two different track inspection systems and car locating subsystem based on track circuit counting. The KSIR consists of four subsystems: rail wear, height and track gauge measurement (BFSM); rail slump measurement (FIP); contact rail measurement (FKR); speed, level and car locating (USI). Currently new subsystem for wheel flange wear (IRK) is developed. The KSIR carry out measurements in real-time mode. The BFSM subsystem contains 4 matrix CCD cameras and 4 infrared stripe illuminators. The FIP subsystem contains 4 line CCD cameras and 4 spot illuminators. The FKR subsystem contains 2 matrix CCD cameras and 2 stripe illuminators. The IRK subsystem contains 2 CCD cameras and 2 stripe illuminators. Each system calibration was carried out for their adjustment. On the first step KSIR obtains data from photonic sensors which is valued in internal measurement units. Due to the calibration on the second step non-contact system converts the data to metric measurement system.

  13. Measurement system and model for simultaneously measuring 6DOF geometric errors.

    Science.gov (United States)

    Zhao, Yuqiong; Zhang, Bin; Feng, Qibo

    2017-09-04

    A measurement system to simultaneously measure six degree-of-freedom (6DOF) geometric errors is proposed. The measurement method is based on a combination of mono-frequency laser interferometry and laser fiber collimation. A simpler and more integrated optical configuration is designed. To compensate for the measurement errors introduced by error crosstalk, element fabrication error, laser beam drift, and nonparallelism of two measurement beam, a unified measurement model, which can improve the measurement accuracy, is deduced and established using the ray-tracing method. A numerical simulation using the optical design software Zemax is conducted, and the results verify the correctness of the model. Several experiments are performed to demonstrate the feasibility and effectiveness of the proposed system and measurement model.

  14. Advanced Active-Magnetic-Bearing Thrust-Measurement System

    Science.gov (United States)

    Imlach, Joseph; Kasarda, Mary; Blumber, Eric

    2008-01-01

    An advanced thrust-measurement system utilizes active magnetic bearings to both (1) levitate a floating frame in all six degrees of freedom and (2) measure the levitation forces between the floating frame and a grounded frame. This system was developed for original use in measuring the thrust exerted by a rocket engine mounted on the floating frame, but can just as well be used in other force-measurement applications. This system offers several advantages over prior thrust-measurement systems based on mechanical support by flexures and/or load cells: The system includes multiple active magnetic bearings for each degree of freedom, so that by selective use of one, some, or all of these bearings, it is possible to test a given article over a wide force range in the same fixture, eliminating the need to transfer the article to different test fixtures to obtain the benefit of full-scale accuracy of different force-measurement devices for different force ranges. Like other active magnetic bearings, the active magnetic bearings of this system include closed-loop control subsystems, through which the stiffness and damping characteristics of the magnetic bearings can be modified electronically. The design of the system minimizes or eliminates cross-axis force-measurement errors. The active magnetic bearings are configured to provide support against movement along all three orthogonal Cartesian axes, and such that the support along a given axis does not produce force along any other axis. Moreover, by eliminating the need for such mechanical connections as flexures used in prior thrust-measurement systems, magnetic levitation of the floating frame eliminates what would otherwise be major sources of cross-axis forces and the associated measurement errors. Overall, relative to prior mechanical-support thrust-measurement systems, this system offers greater versatility for adaptation to a variety of test conditions and requirements. The basic idea of most prior active

  15. Measurement system with high accuracy for laser beam quality.

    Science.gov (United States)

    Ke, Yi; Zeng, Ciling; Xie, Peiyuan; Jiang, Qingshan; Liang, Ke; Yang, Zhenyu; Zhao, Ming

    2015-05-20

    Presently, most of the laser beam quality measurement system collimates the optical path manually with low efficiency and low repeatability. To solve these problems, this paper proposed a new collimated method to improve the reliability and accuracy of the measurement results. The system accuracy controlled the position of the mirror to change laser beam propagation direction, which can realize the beam perpendicularly incident to the photosurface of camera. The experiment results show that the proposed system has good repeatability and the measuring deviation of M2 factor is less than 0.6%.

  16. Data acquisition and processing system for coincidence measurements

    International Nuclear Information System (INIS)

    Li Xu

    1990-07-01

    An instrument has been designed for the absolute measurement of radioactivity with 4πβ(PC)-γ coincidence. The instrument can be used as a standard device for the radioactivity measurement in metrology laboratories. Also it can be used in the nuclear science and engineering research for absolute measurement of nuclear decay rate. The control of the system dead time and coincidence resolving time is digitized. The precision can reach ±2 ns. For data acquisition and communication the normalizing GPIB interface system technique is adopted. The measuring error caused by this instrument itself can be better than ±0.02%

  17. On-line pressure measurement using scanning systems

    International Nuclear Information System (INIS)

    Morss, A.G.; Watson, A.P.

    1978-08-01

    Data collection methods can be improved significantly by using pressure scanning systems in conjunction with transducers for the measurement of pressure distribution in fluid flow rigs. However, the response of pressure transducers to the slight random pressure fluctuations that occur in practice can cause some measurement problems, especially for accurate work. The nature of these pressure fluctuations is examined and suitable analysis techniques are recommended. Results obtained using these techniques are presented. It is concluded that by using the correct techniques pressure transducer systems can be used to measure pressure distributions accurately and are sufficiently sensitive to measure very small systematic effects with great precision. (author)

  18. A combined system for measuring animal motion activities.

    Science.gov (United States)

    Young, M S; Young, C W; Li, Y C

    2000-01-31

    In this study, we have developed a combined animal motion activity measurement system that combines an infrared light matrix subsystem with an ultrasonic phase shift subsystem for animal activity measurement. Accordingly, in conjunction with an IBM PC/AT compatible personal computer, the combined system has the advantages of both infrared and ultrasonic subsystems. That is, it can at once measure and directly analyze detailed changes in animal activity ranging from locomotion to tremor. The main advantages of this combined system are that it features real time data acquisition with the option of animated real time or recorded display/playback of the animal's motion. Additionally, under the multi-task operating condition of IBM PC, it can acquire and process behavior using both IR and ultrasound systems simultaneously. Traditional systems have had to make separate runs for gross and fine movement recording. This combined system can be profitably employed for normative behavioral activity studies and for neurological and pharmacological research.

  19. Visual Peoplemeter: A Vision-based Television Audience Measurement System

    Directory of Open Access Journals (Sweden)

    SKELIN, A. K.

    2014-11-01

    Full Text Available Visual peoplemeter is a vision-based measurement system that objectively evaluates the attentive behavior for TV audience rating, thus offering solution to some of drawbacks of current manual logging peoplemeters. In this paper, some limitations of current audience measurement system are reviewed and a novel vision-based system aiming at passive metering of viewers is prototyped. The system uses camera mounted on a television as a sensing modality and applies advanced computer vision algorithms to detect and track a person, and to recognize attentional states. Feasibility of the system is evaluated on a secondary dataset. The results show that the proposed system can analyze viewer's attentive behavior, therefore enabling passive estimates of relevant audience measurement categories.

  20. Improved radon-flux-measurement system for uranium-tailings pile measurement

    International Nuclear Information System (INIS)

    Freeman, H.D.

    1981-10-01

    The Pacific Northwest Laboratory (PNL) is developing cover technology for uranium mill tailings that will inhibit the diffusion of radon to the atmosphere. As part of this cover program, an improved radon flux measurement system has been developed. The radon measurement system is a recirculating, pressure-balanced, flow-through system that uses activated carbon at ambient temperatures to collect the radon. With the system, an area of 0.93 m 2 is sampled for periods ranging from 1 to 12 h. The activated carbon is removed from the radon trap and the collected radon is determined by counting the 214 Bi daughter product. Development of the system included studies to determine the efficiency of activated carbon, relative calibration measurements and field measurements made during 1980 at the inactive tailings pile in Grand Junction, Colorado. Results of these studies are presented

  1. Development of signal acquisition device of rotating coil measurement system

    International Nuclear Information System (INIS)

    Zhou Jianxin; Li Li; Kang Wen; Deng Chengdong; Yin Baogui; Fu Shinian

    2013-01-01

    A new rotating coil magnetic measurement system using the technical solution of the combination of a dynamic signal acquisition card and software with specific functions was developed. The acquisition device of the system successfully implemented the function of the PDI-5025 integrator. The sampling rate, the range, the accuracy and the flexibility of the system were improved. The development program of signal acquisition equipment, the realization of the acquisition function and the reliability and stability of the system were introduced. (authors)

  2. Complex optimization of radiometric control and measurement systems

    International Nuclear Information System (INIS)

    Onishchenko, A.M.

    1995-01-01

    Fundamentals of a new approach to increase in the accuracy of radiometric systems of control and measurements are presented in succession. Block diagram of the new concept of radiometric system optimization is provided. The approach involving radical increase in accuracy and envisages ascertaining of controlled parameter by the totality of two intelligence signals closely correlated with each other. The new concept makes use of system analysis as a unified one-piece object, permitting euristic synthesis of the system. 4 refs., 3 figs

  3. Developing a lean measurement system to enhance process improvement

    Directory of Open Access Journals (Sweden)

    Lewis P.

    2013-01-01

    Full Text Available A key ingredient to underpin process improvement is a robust, reliable, repeatable measurement system. Process improvement activity needs to be supported by accurate and precise data because effective decision making, within process improvement activity, demands the use of “hard” data. One of the oldest and most established process improvement methods is Deming’s Plan-Do-Check-Act (PDCA cycle which is reliant on the check phase, a measurement activity where data is being gathered and evaluated. Recent expansions of the PDCA such as the Six-Sigma Define-Measure-Analyse-Improve-Control (DMAIC methodology place significant importance upon measurement. The DMAIC cycle incorporates the regimented requirement for the inclusion of measurement system analysis (MSA into the breakthrough strategy. The call for MSA within the DMAIC cycle is to provide the improvement activity with a robust measurement system that will ensure a pertinent level of data during any validation process. The Lean methodology is heavily centred on the removal of the seven Mudas (wastes from a manufacturing process: defects, overproduction, transportation, waiting, inventory, motion and processing. The application of lean, particularly within the manufacturing industry, has led to a perception that measurement is a waste within a manufacturing process because measurement processes identify defective products. The metrologists’ pursuit for measurement excellence could be construed as a hindrance by the “cost down” demands being perpetrated from the same organisation’s lean policy. So what possible benefits does enforcing the regimes of the lean and quality philosophies upon the measurement process have and how does this ultimately enhance the process improvement activity? The key fundamental to embed with any process improvement is the removal of waste. The process improvement techniques embedded within lean and quality concepts are extremely powerful practices in the

  4. Measurement of Detector Efficiency for the CZT Monitoring System

    Energy Technology Data Exchange (ETDEWEB)

    Yoon, Kang Hwa; Kon, Kang Seo; Kim, Jeongin [KHNP, Radiation Health Research Institute, Seoul (Korea, Republic of)

    2014-05-15

    Evaluation method of using CZT have been being attempted in various places such as AEP(American Electronic Power) etc since EDF(Electricite de France) had apply to the project named 'Source Term Reduction'. CZT can measure source terms on various places in nuclear power plants because it is available at room temperature unless a seperate device and portability is good. Consequently, CZT show good result from analysis of source terms in nuclear power plants. This study found out efficiency of CZT detector that is now researched in CZT Monitoring System for measure source terms on RCS system of domestic old and new nuclear power plants and verified measured efficiency values by comparing to reference efficiency we already know. This study was carried out for finding out detector's efficiency depending on necessary energy in order to save quantitative radioactivity value of source terms. Eventually, this study is to develope CZT Monitoring System measuring CRUD in domestic PWRs primary system or piping system by carrying out in-vivo. Considering error ratio ±20% on radioactivity value of CRM used in measuring and verifying efficiency, measurement of detector Efficiency for the CZT Monitoring System is good. But more various tests is needed than now for an accurate measurement.

  5. Folksonomia: a linguagem das tags

    Directory of Open Access Journals (Sweden)

    Juliana de Assis

    2013-04-01

    Full Text Available http://dx.doi.org/10.5007/1518-2924.2013v18n36p85   A radicalização do potencial colaborativo da web atual aponta uma tendência de personalização da recuperação da informação através de ferramentas que exploram a linguagem natural na representação e no compartilhamento de conteúdos ao longo das redes sociais. Tal configuração sócio-técnica traz desafios aos profissionais da informação tanto para a descrição e compreensão dos fenômenos informacionais que ocorrem neste âmbito, quanto para a elaboração de produtos e serviços voltados para um usuário que se apresenta cada vez mais como sujeito informacional ao assumir um papel ativo diante da complexidade que caracteriza a organização da informação em contextos digitais. Este artigo apresenta conclusões de pesquisa, relacionadas às analises da linguagem utilizada em três ambientes colaborativos que utilizam a folksonomia (Social Tagging Systems. A partir de uma perspectiva fundamentada na Semiótica e na Análise de Redes Sociais, são identificadas e descritas as principais manifestações da linguagem gerada e compartilhada pelas redes sociais através destes ambientes.

  6. Machine vision system for measuring conifer seedling morphology

    Science.gov (United States)

    Rigney, Michael P.; Kranzler, Glenn A.

    1995-01-01

    A PC-based machine vision system providing rapid measurement of bare-root tree seedling morphological features has been designed. The system uses backlighting and a 2048-pixel line- scan camera to acquire images with transverse resolutions as high as 0.05 mm for precise measurement of stem diameter. Individual seedlings are manually loaded on a conveyor belt and inspected by the vision system in less than 0.25 seconds. Designed for quality control and morphological data acquisition by nursery personnel, the system provides a user-friendly, menu-driven graphical interface. The system automatically locates the seedling root collar and measures stem diameter, shoot height, sturdiness ratio, root mass length, projected shoot and root area, shoot-root area ratio, and percent fine roots. Sample statistics are computed for each measured feature. Measurements for each seedling may be stored for later analysis. Feature measurements may be compared with multi-class quality criteria to determine sample quality or to perform multi-class sorting. Statistical summary and classification reports may be printed to facilitate the communication of quality concerns with grading personnel. Tests were conducted at a commercial forest nursery to evaluate measurement precision. Four quality control personnel measured root collar diameter, stem height, and root mass length on each of 200 conifer seedlings. The same seedlings were inspected four times by the machine vision system. Machine stem diameter measurement precision was four times greater than that of manual measurements. Machine and manual measurements had comparable precision for shoot height and root mass length.

  7. Isolated systems with wind power. Results of measurements in Egypt

    DEFF Research Database (Denmark)

    Bindner, Henrik W.; Saleh, L.; Hafiez, S.A.

    2001-01-01

    different sites. Three of the sites were in Hurghada, where the power system is rather large. The last two measurement sites were at village systems: one large system and one with only power ca. five hours perday. The measured load profiles were quite different at the different sites. The power quality...... at the different sites was adequate even at the small village sites where the load is almost constant. The impact of different load profiles on the technicaland economic performance of a wind diesel system in the feasibility phase was investigated. The results indicate that when the profile has low values...

  8. Laser system for measuring small changes in plasma tracer concentrations.

    Science.gov (United States)

    Klaesner, J W; Pou, N A; Parker, R E; Galloway, R L; Roselli, R J

    1996-01-01

    The authors developed a laser-diode system that can be used for on-line optical concentration measurements in physiologic systems. Previous optical systems applied to whole blood have been hampered by artifacts introduced by red blood cells (RBCs). The system introduced here uses a commercially available filter cartridge to separate RBCs from plasma before plasma concentration measurements are made at a single wavelength. The filtering characteristics of the Cellco filter cartridge (#4007-10, German-town, MD) were adequate for use in the on-line measurement system. The response time of the filter cartridge was less than 40 seconds, and the sieving characteristics of the filter for macromolecules were excellent, with filtrate-to-plasma albumin ratios of 0.98 +/- 0.11 for studies in sheep and 0.94 +/- 0.15 for studies in dogs. The 635-nm laser diode system developed was shown to be more sensitive than the spectrophotometer used in previous studies (Klaesner et al., Annals of Biomedical Engineering, 1994; 22, 660-73). The new system was used to measure the product of filtration coefficient (Kfc) and reflection coefficient for albumin (delta f) in an isolated canine lung preparation. The delta fKfc values [mL/(cmH2O.min.100 g dry lung weight)] measured with the laser diode system (0.33 +/- 0.22) compared favorably with the delta fKfc obtained using a spectrophotometer (0.27 +/- 0.20) and with the Kfc obtained using the blood-corrected gravimetric method (0.32 +/- 0.23). Thus, this new optical system was shown to accurately measure plasma concentration changes in whole blood for physiologic levels of Kfc. The same system can be used with different optical tracers and different source wavelengths to make optical plasma concentration measurements for other physiologic applications.

  9. Method of calibrating a fluid-level measurement system

    Science.gov (United States)

    Woodard, Stanley E. (Inventor); Taylor, Bryant D. (Inventor)

    2010-01-01

    A method of calibrating a fluid-level measurement system is provided. A first response of the system is recorded when the system's sensor(s) is (are) not in contact with a fluid of interest. A second response of the system is recorded when the system's sensor(s) is (are) fully immersed in the fluid of interest. Using the first and second responses, a plurality of expected responses of the system's sensor(s) is (are) generated for a corresponding plurality of levels of immersion of the sensor(s) in the fluid of interest.

  10. Coherent versus Measurement Feedback: Linear Systems Theory for Quantum Information

    Directory of Open Access Journals (Sweden)

    Naoki Yamamoto

    2014-11-01

    Full Text Available To control a quantum system via feedback, we generally have two options in choosing a control scheme. One is the coherent feedback, which feeds the output field of the system, through a fully quantum device, back to manipulate the system without involving any measurement process. The other one is measurement-based feedback, which measures the output field and performs a real-time manipulation on the system based on the measurement results. Both schemes have advantages and disadvantages, depending on the system and the control goal; hence, their comparison in several situations is important. This paper considers a general open linear quantum system with the following specific control goals: backaction evasion, generation of a quantum nondemolished variable, and generation of a decoherence-free subsystem, all of which have important roles in quantum information science. Some no-go theorems are proven, clarifying that those goals cannot be achieved by any measurement-based feedback control. On the other hand, it is shown that, for each control goal there exists a coherent feedback controller accomplishing the task. The key idea to obtain all the results is system theoretic characterizations of the above three notions in terms of controllability and observability properties or transfer functions of linear systems, which are consistent with their standard definitions.

  11. Process tomography via sequential measurements on a single quantum system

    CSIR Research Space (South Africa)

    Bassa, H

    2015-09-01

    Full Text Available The authors utilize a discrete (sequential) measurement protocol to investigate quantum process tomography of a single two-level quantum system, with an unknown initial state, undergoing Rabi oscillations. The ignorance of the dynamical parameters...

  12. Temperature measuring system based on ADuC812 MCU

    International Nuclear Information System (INIS)

    Zhou Dongmei; Ge Liangquan; Cheng Feng; Li Jinfeng

    2009-01-01

    This paper introduces a temperature measuring system which is composed of a single chip microcomputer ADuC812, new type digital temperature sensor TMP100,LED display circuit and based on I 2 C bus. I 2 C bus which is invented by PHILIPS company needs only two signal lines (SDA, SCL), can realized perfect duplex synchronous data transmission. Using the method of hardware setting of device address, can completely avoid the disadvantages of device selection addressing, thus can make hardware system has simplifier and more flexible extension method. The key part of the system is composed of a single chip microcomputer ADuC812 which is compatible with MCS-51 and is invented by AD company in america. The software is compiled with 8051 assembly language. The data acquisitin single chip microcomputer measurement system with I 2 C bus fully shows the features of flexibility, precise and high integration. Proposed high accuracy measurement method to realize environment temperature measure. (authors)

  13. A measuring instrument for evaluation of quality systems.

    NARCIS (Netherlands)

    Wagner, C.; Bakker, D.H. de; Groenewegen, P.P.

    1999-01-01

    Objective: To develop an instrument for provider organizations, consumers, purchasers, and policy makers to measure and compare the development of quality systems in provider organizations. Design: Cross-sectional study of provider organizations using a structured questionnaire to survey managers.

  14. Real-time personal dose measurement and management system

    International Nuclear Information System (INIS)

    Zhang Zhiyong; Cheng Chang; Liu Zhengshan; Yang Huating; Deng Changming; Zhang Xiu; Guo Zhanjie

    2001-01-01

    The composition and design of a real-time personal dose measurement and management system are described. Accordingly, some pertinent hardware circuits and software codes including their operation modes are presented

  15. Oceanographic measurements from the Texas Automated Buoy System (TABS)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Texas Automated Buoy System contains daily oceanographic measurements from seven buoys off the Texas coast from Brownsville to Sabine. The Texas General Land...

  16. An evaluation of professional quality measurement systems for the ...

    African Journals Online (AJOL)

    International Journal of Engineering, Science and Technology ... An evaluation of professional quality measurement systems for the automotive industry ... The ultimate goal of this study is to get comparable quantitative information about ...

  17. An Antenna Measurement System Based on Optical Feeding

    Directory of Open Access Journals (Sweden)

    Ryohei Hosono

    2013-01-01

    the advantage of the system is demonstrated by measuring an ultra-wideband (UWB antenna both by the optical and electrical feeding systems and comparing with a calculated result. Ripples in radiation pattern due to the electrical feeding are successfully suppressed by the optical feeding. For example, in a radiation measurement on the azimuth plane at 3 GHz, ripple amplitude of 1.0 dB that appeared in the electrical feeding is reduced to 0.3 dB. In addition, a circularly polarized (CP antenna is successfully measured by the proposed system to show that the system is available not only for amplitude but also phase measurements.

  18. The software for the CERN LEP beam orbit measurement system

    International Nuclear Information System (INIS)

    Morpurgo, G.

    1992-01-01

    The Beam Orbit Measurement (BOM) system of LEP consists of 504 pickups, distributed all around the accelerator, that are capable of measuring the positions of the two beams. Their activity has to be synchronized, and the data produced by them have to be collected together, for example to form a 'closed orbit measurement' or a 'trajectory measurement'. On the user side, several clients can access simultaneously the results from this instrument. An automatic acquisition mode, and an 'on request' one, can run in parallel. This results in a very flexible and powerful system. The functionality of the BOM system is fully described, as well as the structure of the software processes which constitute the system, and their interconnections. Problems solved during the implementation are emphasized. (author)

  19. Earth System Research Laboratory Long-Term Surface Aerosol Measurements

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Aerosol measurements began at the NOAA Earth System Research Laboratory (ESRL) Global Monitoring Division (GMD) baseline observatories in the mid-1970's with the...

  20. An automatic measuring system of internal friction at low frequency

    International Nuclear Information System (INIS)

    Iwasaki, K.

    1979-01-01

    An inverted torsion pendulum is automatized by means of Tectanel electronic system. Internal friction and the period of vibration are measured fully automatically as a function of temperature and the data obtained are analysed with a computer. (Author) [pt

  1. Attitude angular measurement system based on MEMS accelerometer

    Science.gov (United States)

    Luo, Lei

    2014-09-01

    For the purpose of monitoring the attitude of aircraft, an angular measurement system using a MEMS heat convection accelerometer is presented in this study. A double layers conditioning circuit that center around the single chip processor is designed and built. Professional display software with the RS232 standard is used to communicate between the sensor and the computer. Calibration experiments were carried out to characterize the measuring system with the range of - 90°to +90°. The curves keep good linearity with the practical angle. The maximum deviation occurs at the 90°where the value is 2.8°.The maximum error is 1.6% and the repeatability is measured to be 2.1%. Experiments proved that the developed measurement system is capable of measuring attitude angle.

  2. Measurement system analysis for one-sided tolerance

    Directory of Open Access Journals (Sweden)

    Szemik Kamil

    2017-01-01

    Full Text Available Measurement system analysis is carried out in order to determine if a capability to perform measurements in terms of product and process control is sufficient, indicating that the type I and the type II appraisal errors probability are acceptable. Statistical analyses for measurement system evaluation presented in the literature and the industrial manuals are not applicable for all complex and unusual applications. Therefore, the purpose of this study was to develop a robust statistical analysis method for measurement system variability analysis, in terms of product control scenario applied to one-sided tolerance. In the hereby presented study, the authors presented the theoretical principles of statistical techniques for measurement variations evaluation. Subsequently, the formula of gauge repeatability and reproducibility in terms of lower specification limit was proposed. The research hypothesis was tested using the statistical analysis.

  3. Das Meer im Recht

    Directory of Open Access Journals (Sweden)

    Daniel Damler

    2010-01-01

    Full Text Available Rezensierte Werke:Jack P. Greene, Philip D. Morgan (Hg., Atlantic History. A Critical Appraisal, Oxford: Oxford University Press 2009, 371 S., ISBN 978-0-19-532034-2; John H. Elliott, Empires of the Atlantic world. Britain and Spain in America 1492–1830, New Haven, London: Yale University Press 2006, 546 S., ISBN 0-300-11431-1; Bernard Bailyn, Atlantic History. Concept and Contours, Cambridge (MA, London: Harvard University Press 2005, 149 S., ISBN 0-674-01688-2; Horst Pietschmann (Hg., Atlantic History. History of the Atlantic System 1580–1830, Göttingen: Vandenhoeck & Ruprecht 2002, 556 S., ISBN3-525-86318-7

  4. Quadratic measurement and conditional state preparation in an optomechanical system

    DEFF Research Database (Denmark)

    A. Brawley, George; Vanner, Michael A.; Bowen, Warwick P.

    2014-01-01

    We experimentally demonstrate, for the first time, quadratic measurement of mechanical motion in an optomechanical system. We use this nonlinear easurement to conditionally prepare classical non-Gaussian states of motion of a micro-mechanical oscillator.......We experimentally demonstrate, for the first time, quadratic measurement of mechanical motion in an optomechanical system. We use this nonlinear easurement to conditionally prepare classical non-Gaussian states of motion of a micro-mechanical oscillator....

  5. Projective measurements in quantum and classical optical systems

    CSIR Research Space (South Africa)

    Roux, FS

    2014-09-01

    Full Text Available equally well to both classical and quantum optical systems. A projective measurement, in the context of quantum mechanics, is understood to be the process where a projection operator operates on some input state. Often this projection operator is composed...) Projective measurements in quantum and classical optical systems Filippus S. Roux* and Yingwen Zhang CSIR National Laser Centre, P.O. Box 395, Pretoria 0001, South Africa (Received 3 July 2014; published 22 September 2014) Experimental setups for the optical...

  6. Effect of counting system dead time on thyroid uptake measurements

    International Nuclear Information System (INIS)

    Simpkin, D.J.

    1984-01-01

    Equations are derived and the results of numerical calculations shown that illustrate the effect of counting system dead time on measured thyroid uptake of radioiodine. It is predicted that the observed uptake is higher than the true uptake due to system dead time. This is shown for both paralyzing and nonparalyzing dead time. The effect of increasing the administered activity is shown to increase the measured uptake, in a manner predicted by the paralyzable and nonparalyzable dead time models

  7. The flow measurement plan for the primary system of SMART

    International Nuclear Information System (INIS)

    Lee, Jun; Seo, J. K.; Park, C. T.; Yoon, J. H.; Cho, B. H.; Lee, D. J.

    2001-08-01

    It is the common features of the integrated reactor that the main components of the primary system are installed within the reactor vessel, and so there are no any flow pipes connecting the reactor coolant pumps or steam generators. Due to no any flow pipes, it is impossible to measure the differential pressure at the primary system of the integrated reactor, and it also makes impossible measure the primary coolant flow rate. SMART is also a integrated reactor type, and have a problem as same as the above case. The objective of the study is to draw up the flow measurement plan for the primary system of SMART. In this study, firstly we reviewed the flow measurement methods at the primary system for the existing commercial nuclear power reactors. As a result of the review, we selected preliminarily the 3 methods which is a good possibility of application to SMART. The 3 methods are as follows. Flow measurement method by MCP rotation speed, flow measurement method by HBM, flow measurement method by pump motor power. For the above methods, we have evaluated whether they actually can be applied to SMART, and also have set up the concrete methodology. Finally we have made a selection of the above methods as the flow measurement plan for the primary system of SMART. Peculiarly, we did not found out a precedent which the direct pump motor power-flow rate curve is used as the flow measurement method in the existing commercial nuclear power reactors. Therefore, to use this method for SMART, it is needed to bear the follow-up measures in mind. The follow-up measures is included in this report

  8. Study on portable optical 3D coordinate measuring system

    Science.gov (United States)

    Ren, Tongqun; Zhu, Jigui; Guo, Yinbiao

    2009-05-01

    A portable optical 3D coordinate measuring system based on digital Close Range Photogrammetry (CRP) technology and binocular stereo vision theory is researched. Three ultra-red LED with high stability is set on a hand-hold target to provide measuring feature and establish target coordinate system. Ray intersection based field directional calibrating is done for the intersectant binocular measurement system composed of two cameras by a reference ruler. The hand-hold target controlled by Bluetooth wireless communication is free moved to implement contact measurement. The position of ceramic contact ball is pre-calibrated accurately. The coordinates of target feature points are obtained by binocular stereo vision model from the stereo images pair taken by cameras. Combining radius compensation for contact ball and residual error correction, object point can be resolved by transfer of axes using target coordinate system as intermediary. This system is suitable for on-field large-scale measurement because of its excellent portability, high precision, wide measuring volume, great adaptability and satisfying automatization. It is tested that the measuring precision is near to +/-0.1mm/m.

  9. Calorimetric Measuring Systems for Characterizing High Frequency Power Losses in Power Electronic Components and Systems

    DEFF Research Database (Denmark)

    Blaabjerg, Frede; Pedersen, John Kim; Ritchie, Andrew Ewen

    2002-01-01

    High frequency power losses in power electronic components and systems are very difficult to measure. The same applies to the efficiency of high-efficiency systems and components. An important method to measure losses with high accuracy is the calorimetric measuring systems. This paper describes...... to calibrate such systems are proposed and different applications of the system are given. Two practical examples end the description of the research. It is concluded that such systems have a relative long time-constant but they are accurate and useful for precise power loss measurement....

  10. Automatic control system for measuring currents produced by ionization chambers

    International Nuclear Information System (INIS)

    Brancaccio, Franco

    2002-01-01

    Ionization Chambers in current mode operation are usually used in Nuclear Metrology. Activity measurements are quickly performed by Ionization Chambers, with very good precision. For this purpose measurements of very low ionization currents, carried out by high quality instrumentation, are required. Usually, electrometers perform the current integration method under command of signals from an automation system, in order to reduce the measurement uncertainties. Among the measurement systems at the Laboratorio de Metrologia Nuclear (LMN) of IPEN, there are two ionization chamber systems. In the present work, an automation system developed for current integration measurements is described. This automation system is composed by software (graphic interface and control) and an electronic module connected to a microcomputer, by means of a commercial data acquisition card. Several test measurements were performed in order to determine the intrinsic uncertainty, linearity and stability of the system. Using calibrated radioactive solutions, the IG12/A20 chamber calibration factors for 18 F and 153 Sm were obtained, making possible to determine activities of these radionuclides. (author)

  11. A measure of internal synergy of the collective system

    Directory of Open Access Journals (Sweden)

    Novikov V.A.

    2013-12-01

    Full Text Available Background: The authors examine the methodology of HRM personnel management based on ratings. Proposed to represent a collective system that uses a matrix of pair relations as a system of linear differential equations. The condition of auto generation of an autonomous system can be determined by the application of the Laplace transformation to the system. This condition mainly depends on the main eigenvalue of dating relationships matrix. Assuming the oscillation frequency is straightly proportional to the system's synergy rating, a special algorithm of comparative evaluation of several collective systems was suggested. Methods: The calculation of the rating of internal synergies is based on the representation of the collective system as a system of linear differential equations, the coefficients of which are obtained by questionnaire survey of all members of the team. Internal representation of the system's synergism as a stimulation of an autonomous system allows using the eigenvector of the system as a measure of internal synergies. Results: The result of this method is the rating of members of interacting collective systems in terms of their contribution to the self-organization sharing behavior.  Conclusions:  Using a matrix of pair relations allows without direct programming and only using MathCad determines the measure of internal synergy of a collective system.  

  12. Predicting Document Retrieval System Performance: An Expected Precision Measure.

    Science.gov (United States)

    Losee, Robert M., Jr.

    1987-01-01

    Describes an expected precision (EP) measure designed to predict document retrieval performance. Highlights include decision theoretic models; precision and recall as measures of system performance; EP graphs; relevance feedback; and computing the retrieval status value of a document for two models, the Binary Independent Model and the Two Poisson…

  13. Optical measurement of bubbles: System design and application

    NARCIS (Netherlands)

    Leifer, I.; Leeuw, G.de; Cohen, L.H.

    2003-01-01

    Affordable high quality charge-coupled device (CCD) video cameras and image processing software are powerful tools for bubble measurements. Because of the wide variation between bubble populations, different bubble measurement systems (BMSs) are required depending upon the application. Two BMSs are

  14. Measurement System for Playout Delay of TV Signals

    NARCIS (Netherlands)

    Kooij, W.J.; Stokking, H.M.; Brandenburg, R. van; Boer, P.T. de

    2014-01-01

    TV signals are carried towards end-users using different (broadcast) technologies and by different providers. This is causing differences in the playout timing of the TV signal at different locations and devices. Authors have developed a measurement system for measuring the relative playout delay of

  15. 40 CFR 92.116 - Engine output measurement system calibrations.

    Science.gov (United States)

    2010-07-01

    ... manufacturer's data, actual measurement, or the value recorded from the previous calibration used for this... load-cell or transfer standard may be used to verify the in-use torque measurement system. (i) The... spaced torque values as indicated by the master load-cell for each in-use range used. (v) The in-use...

  16. Implementation and Rejection of Industrial Steam System Energy Efficiency Measures

    Energy Technology Data Exchange (ETDEWEB)

    Therkelesen, Peter [Environmental Energy Technologies Division Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); McKane, Aimee [Environmental Energy Technologies Division Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

    2013-05-01

    Steam systems consume approximately one third of energy applied at U.S. industrial facilities. To reduce energy consumption, steam system energy assessments have been conducted on a wide range of industry types over the course of five years through the Energy Savings Assessment (ESA) program administered by the U.S. Department of Energy (U.S. DOE). ESA energy assessments result in energy efficiency measure recommendations that are given potential energy and energy cost savings and potential implementation cost values. Saving and cost metrics that measure the impact recommended measures will have at facilities, described as percentages of facility baseline energy and energy cost, are developed from ESA data and used in analyses. Developed savings and cost metrics are examined along with implementation and rejection rates of recommended steam system energy efficiency measures. Based on analyses, implementation of steam system energy efficiency measures is driven primarily by cost metrics: payback period and measure implementation cost as a percentage of facility baseline energy cost (implementation cost percentage). Stated reasons for rejecting recommended measures are primarily based upon economic concerns. Additionally, implementation rates of measures are not only functions of savings and cost metrics, but time as well.

  17. Simultaneous Authentication and Certification of Arms-Control Measurement Systems

    International Nuclear Information System (INIS)

    MacArthur, Duncan W.; Hauck, Danielle K.; Thron, Jonathan L.

    2012-01-01

    Most arms-control-treaty-monitoring scenarios involve a host party that makes a declaration regarding its nuclear material or items and a monitoring party that verifies that declaration. A verification system developed for such a use needs to be trusted by both parties. The first concern, primarily from the host party's point of view, is that any sensitive information that is collected must be protected without interfering in the efficient operation of the facility being monitored. This concern is addressed in what can be termed a 'certification' process. The second concern, of particular interest to the monitoring party, is that it must be possible to confirm the veracity of both the measurement system and the data produced by this measurement system. The monitoring party addresses these issues during an 'authentication' process. Addressing either one of these concerns independently is relatively straightforward. However, it is more difficult to simultaneously satisfy host party certification concerns and monitoring party authentication concerns. Typically, both parties will want the final access to the measurement system. We will describe an alternative approach that allows both parties to gain confidence simultaneously. This approach starts with (1) joint development of the measurement system followed by (2) host certification of several copies of the system and (3) random selection by the inspecting party of one copy to be use during the monitoring visit and one (or more) copy(s) to be returned to the inspecting party's facilities for (4) further hardware authentication; any remaining copies are stored under joint seal for use as spares. Following this process, the parties will jointly (5) perform functional testing on the selected measurement system and then (6) use this system during the monitoring visit. Steps (1) and (2) assure the host party as to the certification of whichever system is eventually used in the monitoring visit. Steps (1), (3), (4), and (5

  18. The two plastic scintillator measuring system HBG-2

    International Nuclear Information System (INIS)

    Tran Manh Toan; Nguyen Trieu Tu

    1992-01-01

    The beta-gamma measuring system HBG-2 is described. It consist of: 1. Two 40mm Φ x 3mm plastic scintillators, a beta-filter, a shielded cell, and a coincidence circuit; 2. Four counting channels in which one is reversible. A device is capable of measuring low-level activity. Some special measuring methods provided by the equipment are presented, too. (author). 6 refs, 3

  19. A computerized system for handling renal size measurements from urograms

    International Nuclear Information System (INIS)

    Claesson, I.; Jacobsson, B.F.; Riha, M.

    1987-01-01

    The size of a kidney, as measured on an urogram, is a sensitive indicator of renal damage in a child with urinary tract infection, and renal surface area correlates well with glomerular filtration rate. Sequential measurements can be invaluable in evaluating the efficacy of a regimen of treatment. A system utilizing a personal microcomputer has been developed to facilitate the measuring procedure and the handling and analysis of data. (orig.)

  20. Measurement and analysis of operating system fault tolerance

    Science.gov (United States)

    Lee, I.; Tang, D.; Iyer, R. K.

    1992-01-01

    This paper demonstrates a methodology to model and evaluate the fault tolerance characteristics of operational software. The methodology is illustrated through case studies on three different operating systems: the Tandem GUARDIAN fault-tolerant system, the VAX/VMS distributed system, and the IBM/MVS system. Measurements are made on these systems for substantial periods to collect software error and recovery data. In addition to investigating basic dependability characteristics such as major software problems and error distributions, we develop two levels of models to describe error and recovery processes inside an operating system and on multiple instances of an operating system running in a distributed environment. Based on the models, reward analysis is conducted to evaluate the loss of service due to software errors and the effect of the fault-tolerance techniques implemented in the systems. Software error correlation in multicomputer systems is also investigated.

  1. Unpack, plug in, ready? A mini solar system can be connected to any outlet - but this alone is not sufficient; Auspacken, einstecken, fertig? Eine Mini-Solaranlage kann an jede Steckdose angeschlossen werden - doch das allein reicht nicht

    Energy Technology Data Exchange (ETDEWEB)

    Siemer, Jochen

    2013-05-15

    ''Guerrilla Solar'' is the keyword: mini photovoltaic systems of one or two modules and a micro-inverter one can stand on the balcony or wherever there's room and simply connects to the power outlet. The idea is not new, but an acceptable technical solution with the current standards in Germany is difficult. Both - technology and standards - need to be improved. [German] ''Guerilla Solar'' heisst das Schlagwort: Mini-Photovoltaikanlagen aus einem oder zwei Modulen und einem Kleinst-Wechselrichter, die man sich auf den Balkon stellt oder wo sonst gerade Platz ist und einfach an die Steckdose anschliesst. Die Idee ist nicht neu, doch eine mit den in Deutschland geltenden Normen vertraegliche technische Loesung gestaltet sich schwierig. Beides - Technik und Normen - ist verbesserungswuerdig.

  2. Procurement performance measurement system in the health care industry.

    Science.gov (United States)

    Kumar, Arun; Ozdamar, Linet; Ng, Chai Peng

    2005-01-01

    The rising operating cost of providing healthcare is of concern to health care providers. As such, measurement of procurement performance will enable competitive advantage and provide a framework for continuous improvement. The objective of this paper is to develop a procurement performance measurement system. The paper reviews the existing literature in procurement performance measurement to identify the key areas of purchasing performance. By studying the three components in the supply chain collectively with the resources, procedures and output, a model is been developed. Additionally, a balanced scorecard is proposed by establishing a set of generic measures and six perspectives. A case study conducted at the Singapore Hospital applies the conceptual model to describe the purchasing department and the activities within and outside the department. The results indicate that the material management department has already made a good start in measuring the procurement process through the implementation of the balanced scorecard. There are many data that are collected but not properly collated and utilized. Areas lacking measurement include cycle time of delivery, order processing time, effectiveness, efficiency and reliability. Though a lot of hard work was involved, the advantages of establishing a measurement system outweigh the costs and efforts involved in its implementation. Results of balanced scorecard measurements provide decision-makers with critical information on efficiency and effectiveness of the purchasing department's work. The measurement model developed could be used for any hospital procurement system.

  3. Optimization of periodical interrogation of transducers of radioisotope measuring systems

    International Nuclear Information System (INIS)

    Ivashchenko, A.S.; Kaznakov, V.P.; Korolev, V.M.

    1978-01-01

    Certain methods are examined of optimizing periodic interrogation of sensors connected in a definite sequence to device for data processing in a system for controlling production processes. It is shown that in designing multiinput radioisotope measurement systems with a centralized data processing, the choice of the method of organizing periodic interrogation should be made with account for the conditions existing in each specific case

  4. A modular, programmable measurement system for physiological and spaceflight applications

    Science.gov (United States)

    Hines, John W.; Ricks, Robert D.; Miles, Christopher J.

    1993-02-01

    The NASA-Ames Sensors 2000] Program has developed a small, compact, modular, programmable, sensor signal conditioning and measurement system, initially targeted for Life Sciences Spaceflight Programs. The system consists of a twelve-slot, multi-layer, distributed function backplane, a digital microcontroller/memory subsystem, conditioned and isolated power supplies, and six application-specific, physiological signal conditioners. Each signal condition is capable of being programmed for gains, offsets, calibration and operate modes, and, in some cases, selectable outputs and functional modes. Presently, the system has the capability for measuring ECG, EMG, EEG, Temperature, Respiration, Pressure, Force, and Acceleration parameters, in physiological ranges. The measurement system makes heavy use of surface-mount packaging technology, resulting in plug in modules sized 125x55 mm. The complete 12-slot system is contained within a volume of 220x150x70mm. The system's capabilities extend well beyond the specific objectives of NASA programs. Indeed, the potential commercial uses of the technology are virtually limitless. In addition to applications in medical and biomedical sensing, the system might also be used in process control situations, in clinical or research environments, in general instrumentation systems, factory processing, or any other applications where high quality measurements are required.

  5. Multi-echelon systems : a service measure perspective

    NARCIS (Netherlands)

    Diks, E.B.; Kok, de A.G.; Lagodimos, A.G.

    1996-01-01

    This paper reviews the most important results on divergent multi-echelon systems. In particular, we concentrate on the interactions between the elements that constitute such a multi-echelon system, in order to determine several service measures (e.g. external customer service level and inventory

  6. A real-time BWR stability measurement system

    International Nuclear Information System (INIS)

    March-Leuba, J.; King, W.T.

    1988-01-01

    This paper describes the characteristics of a portable, real-time system used for nonperturbational measurements of stability in boiling water reactors. The algorithm used in this system estimates the closed-loop asymptotic decay ratio using only the naturally occurring neutron noise and it is based on the univariate autoregressive methodology. (author)

  7. Improved measurement system for the whole body monitor

    International Nuclear Information System (INIS)

    Kotler, L.H.

    1983-01-01

    A static four-detector system has been established as a whole body radioactivity measurement system. A technique is being developed to position the detectors in such a manner as to minimise longitudinal distribution effects within a subject. This technique, which represents the human body as a simple geometric model, requires the determination of efficiency at any point within this model

  8. 41 CFR 105-72.205 - Metric system of measurement.

    Science.gov (United States)

    2010-07-01

    ... Management Regulations System (Continued) GENERAL SERVICES ADMINISTRATION Regional Offices-General Services Administration 72-UNIFORM ADMINISTRATIVE REQUIREMENTS FOR GRANTS AND AGREEMENTS WITH INSTITUTIONS OF HIGHER... system of measurement. The Metric Conversion Act, as amended by the Omnibus Trade and Competitiveness Act...

  9. A robotic vision system to measure tree traits

    Science.gov (United States)

    The autonomous measurement of tree traits, such as branching structure, branch diameters, branch lengths, and branch angles, is required for tasks such as robotic pruning of trees as well as structural phenotyping. We propose a robotic vision system called the Robotic System for Tree Shape Estimati...

  10. Sistema regional de inovação: estudo das regiões brasileiras Regional innovation system: a study of brazilian regions

    Directory of Open Access Journals (Sweden)

    Giovana F. Rossi Casali

    2010-12-01

    Full Text Available Este trabalho analisou o processo de formação regional do Brasil, os desequilíbrios existentes entre as regiões e as perspectivas futuras. Teve como proposta básica analisar o possível processo de convergência de renda das regiões brasileiras, utilizando o conceito de gap tecnológico. Segundo esse conceito, os desequilíbrios regionais são o resultado de diferentes taxas de desenvolvimento econômico, que, por sua vez, resultam de diferentes níveis de desenvolvimento tecnológico, os quais, por fim, são consequências de condições históricas, sociais e culturais específicas de cada região. Dessa forma, pressupôs-se a existência de relação positiva entre nível de desenvolvimento tecnológico, dependência tecnológica, dependência econômica, nível de desenvolvimento econômico e convergência de renda. Os resultados mostram que, em relação à possibilidade de as regiões e os estados menos desenvolvidos realizarem o catching up com aqueles mais desenvolvidos, as variáveis que representam tanto a geração quanto a apropriação de novas tecnologias são significativas e diretamente relacionadas com o produto. Dessa forma, pode-se afirmar que o catching up seria possível caso houvesse um maior investimento no processo de desenvolvimento e apropriação de novas tecnologias por parte dos governos regionais.This research developed an analysis on the regional imbalances at the Brazilian economy, the historic formation of the regions and perspectives. As a result of the distinctive courses followed by each region, an economical concentration process occurs in the Southeast. In this sense, this study intended to analyze the possible process of the Brazilian regional formation, using the concept of technological gap. The result show that, in relation to the possibilities of the regions and states that are less developed to accomplish the catching up with those that are more developed, the variables that represent generation

  11. A new system for the measurement of the space radiation

    International Nuclear Information System (INIS)

    Pazmandi, T.; Apathy, I.; Deme, S.; Beaujean, R.

    2000-01-01

    Radiation from space mainly consists of charged heavy particles (protons and heavier particles). Due to this fact, the effective dose significantly differs from the physical dose. Current measuring equipment is not fully suitable to measure both of the quantities simultaneously. A combined device for measurement of the mentioned values consists of an on-board thermoluminescence dosimeter reader and a three-axis silicon detector linear energy transfer spectrometer. This paper deals with the main characteristic of the new system. This system can be, applied for dosimetry of air crew as well. (authors)

  12. A new system for measurement of the space radiation

    International Nuclear Information System (INIS)

    Pazmandi, T.; Apathy, I.; Deme, S.; Beaujean, R.

    2001-01-01

    The space radiation mainly consists of heavy charged particles (protons and heavier particles). Due to this fact its effective dose significantly differs from the physical dose. The recently used measuring equipment is not fully suitable to measure both quantities simultaneously. The combined device for measurement of mentioned values consists of an on board thermoluminescent dosimeter reader and a three axis silicon telescope as a linear energy transfer spectrometer. The paper deals with the main characteristics of the new system. This system can be applied for dosimetry of air-crew as well. (authors)

  13. Measures of Quantum Synchronization in Continuous Variable Systems

    Science.gov (United States)

    Mari, A.; Farace, A.; Didier, N.; Giovannetti, V.; Fazio, R.

    2013-09-01

    We introduce and characterize two different measures which quantify the level of synchronization of coupled continuous variable quantum systems. The two measures allow us to extend to the quantum domain the notions of complete and phase synchronization. The Heisenberg principle sets a universal bound to complete synchronization. The measure of phase synchronization is, in principle, unbounded; however, in the absence of quantum resources (e.g., squeezing) the synchronization level is bounded below a certain threshold. We elucidate some interesting connections between entanglement and synchronization and, finally, discuss an application based on quantum optomechanical systems.

  14. Measurability and Safety Verification for Stochastic Hybrid Systems

    DEFF Research Database (Denmark)

    Fränzle, Martin; Hahn, Ernst Moritz; Hermanns, Holger

    2011-01-01

    method that establishes safe upper bounds on reachability probabilities. To arrive there requires us to solve semantic intricacies as well as practical problems. In particular, we show that measurability of a complete system follows from the measurability of its constituent parts. On the practical side......-time behaviour is given by differential equations, as for usual hybrid systems, but the targets of discrete jumps are chosen by probability distributions. These distributions may be general measures on state sets. Also non-determinism is supported, and the latter is exploited in an abstraction and evaluation...

  15. ACCELERATORS: RF system design and measurement of HIRF-CSRe

    Science.gov (United States)

    Xu, Zhe; Zhao, Hong-Wei; Wang, Chun-Xiao; Xia, Jia-Wen; Zhan, Wen-Long; Bian, Zhi-Bin

    2009-05-01

    An RF system for the CSRe (cooling storage experimental ring) is designed and manufactured domestically. The present paper mainly describes the RF system design in five main sections: ferrite ring, RF cavity, RF generator, low level system and cavity cooling. The cavity is based on a type of coaxial resonator which is shorted at the end with one gap and loaded with domestic ferrite rings. The RF generator is designed in the push-pull mode and the low level control system is based on a DSP+FGPA+DDS+USB interface and has three feedback loops. Finally we give the results of the measurement on our system.

  16. Measurement

    NARCIS (Netherlands)

    Boumans, M.; Durlauf, S.N.; Blume, L.E.

    2008-01-01

    Measurement theory takes measurement as the assignment of numbers to properties of an empirical system so that a homomorphism between the system and a numerical system is established. To avoid operationalism, two approaches can be distinguished. In the axiomatic approach it is asserted that if the

  17. The measure system of thermion energy switch over in reactor

    International Nuclear Information System (INIS)

    Li Xing

    1999-01-01

    The system is the application of VI in the field of reactor, to use LabWINDOW/CVI and currency PC collection card, the system can measure and analyse the speciality of V-I and temperature. It is perfectly and high rate performance system, it can be expand to 128 channels for get dissimilitude signal. It can be used in M and C of all kinds field

  18. Analyze of the Measuring Performance for Artificially Business Intelligent Systems

    OpenAIRE

    Vatuiu, Teodora

    2007-01-01

    This paper analyzes the measuring performance of artificially business intelligent systems. Thousands of persons-years have been devoted to the research and development in the vari¬ous aspects of artificially intelligent systems. Much progress has been attained. However, there has been no means of evaluating the progress of the field. How can we assess the cur¬rent state of the science? Most of business intelligent systems are beginning to be deployed commercially. How can a commercial buyer ...

  19. Surface moisture measurement system hardware acceptance test procedure

    International Nuclear Information System (INIS)

    Ritter, G.A.

    1996-01-01

    The purpose of this acceptance test procedure is to verify that the mechanical and electrical features of the Surface Moisture Measurement System are operating as designed and that the unit is ready for field service. This procedure will be used in conjunction with a software acceptance test procedure, which addresses testing of software and electrical features not addressed in this document. Hardware testing will be performed at the 306E Facility in the 300 Area and the Fuels and Materials Examination Facility in the 400 Area. These systems were developed primarily in support of Tank Waste Remediation System (TWRS) Safety Programs for moisture measurement in organic and ferrocyanide watch list tanks

  20. Diagnostic and Measuring Systems of the Power Transformers

    Directory of Open Access Journals (Sweden)

    Jan Michalik

    2003-01-01

    Full Text Available In the article the diagnostic and measuring systems dedicated for complex output tests of power transformers aswell as their diagnostic is dcscribcd. The aim of research in this area was to elaborate the problem of so-called open loop measuring system controlled by PC. The attribute "open" means the possibility to adapt the system for different electric equipment, different measurands and an zdaptation of the way of monitoring, evaluation and distribution of output information according to specific requirements the controlled transformer.

  1. Foldable micro coils for a transponder system measuring intraocular pressure

    Energy Technology Data Exchange (ETDEWEB)

    Ullerich, S.; Schnakenberg, U. [Technische Hochschule Aachen (Germany). Inst. of Materials in Electrical Engineering 1; Mokwa, W. [Technische Hochschule Aachen (Germany). Inst. of Materials in Electrical Engineering 1]|[Fraunhofer Inst. of Microelectronic Circuits and Systems, Duisburg (Germany); Boegel, G. vom [Fraunhofer Inst. of Microelectronic Circuits and Systems, Duisburg (Germany)

    2001-07-01

    A foldable transponder system consisting of a chip and a micro coil for measuring intraocular pressure continuously is presented. The system will be integrated in the haptic of a soft artificial intraocular lens. Calculations of planar micro coils with 6 mm and 10.3 mm in diameter show the limits for planar coils with an outer diameter of 6 mm. For the realisation of the transponder system a 20 {mu}m thick coil with an outer diameter of 10.3 mm, an inner diameter of 7.7 mm, 16 turns and a gap of 20 {mu}m between the windings was selected. Measurements show a good agreement between calculated and measured values. Wireless pressure measurements were carried out showing a linear behaviour of the output signal with respect to the applied pressure. (orig.)

  2. System for measuring of proton polarization in polarized target

    International Nuclear Information System (INIS)

    Derkach, A.Ya.; Lukhanin, A.A.; Karnaukhov, I.M.; Kuz'menko, V.S.; Telegin, Yu.N.; Trotsenko, V.I.; Chechetenko, V.F.

    1981-01-01

    Measurement system of proton polarization in the target, which uses the method of nuclear magnetic resonance is described. To record the signal of NMR-absorption a parallel Q-meter of voltage with analogous subtraction of resonance characteristics of measurement circuit is used. To obtain gradual sensitivity of the system to polarization state in the whole volume of the target the measurement coils is made of tape conductor. The analysis and mathematical modelling of Q-meter are carried out. Corrections for nonlinearity and dispersion are calculated. Key diagrams of the main electron blocks of Q-meter are presented. The system described operates on line with the M6000 computer. Total error of measurement of polarization value of free protons in the target does not exceed 6% [ru

  3. Development of simplified nuclear dry plate measuring system

    Energy Technology Data Exchange (ETDEWEB)

    Sato, Y; Ohta, I [Utsunomiya Univ. (Japan). Faculty of Education; Tezuka, I; Tezuka, T; Makino, K

    1981-08-01

    A simplified nuclear dry plate measuring system was developed. The system consists of a microscope, an ITV camera, a monitor TV, an XY tracker and a micro-computer. The signals of the images of tracks in a nuclear dry plate are sent to the XY tracker, and shown on the monitor TV. The XY tracker displays a pointer on the monitor TV, and makes the output signal of its XY coordinate. This output signal is analyzed by the microcomputer. The software for the measuring process is composed of a program system written in BASIC and the machine language. The data in take, the expansion of the range of measurement and the output of analyzed data are controlled by the program. The accuracy of the measurement of coordinate was studied, and was about 0.39 micrometer for 10 micrometer distance.

  4. Role of measurement systems in burnup credit operations

    International Nuclear Information System (INIS)

    Ewing, R.I.; Sanders, T.L.

    1991-01-01

    Spent fuel transport casks designed using burnup credit have increased payloads that may greatly reduce the number of shipments required to transport spent fuel from reactor sites to repositories. Burnup credit is obtained by applying the reduced reactivity of spent fuel to considerations of nuclear criticality in the design of transport casks. Although it does not appear to be possible to directly measure the criticality of spent fuel assemblies, measurements can be employed to ensure that the only assemblies loaded into a cask have the characteristics appropriate to that cask design. An effective on-site measurement system must be matched to the characteristics of the spent fuel cask design and to the inventory of spent fuel. For operation reasons the system should be simple, accurate, efficient, and easily calibrated. This paper is part of a study to examine the effects of the spent fuel inventory in the U.S. on the selection of measurement systems useful in burnup credit operations

  5. A three-dimensional computerized isometric strength measurement system.

    Science.gov (United States)

    Black, Nancy L; Das, Biman

    2007-05-01

    The three-dimensional Computerized Isometric Strength Measurement System (CISMS) reliably and accurately measures isometric pull and push strengths in work spaces of paraplegic populations while anticipating comparative studies with other populations. The main elements of the system were: an extendable arm, a vertical supporting track, a rotating platform, a force transducer, stability sensors and a computerized data collection interface. The CISMS with minor modification was successfully used to measure isometric push-up and pull-down strengths of paraplegics and isometric push, pull, push-up and pull-down strength in work spaces for seated and standing able-bodied populations. The instrument has satisfied criteria of versatility, safety and comfort, ease of operation, and durability. Results are accurate within 2N for aligned forces. Costing approximately $1,500 (US) including computer, the system is affordable and accurate for aligned isometric strength measurements.

  6. High Precision Infrared Temperature Measurement System Based on Distance Compensation

    Directory of Open Access Journals (Sweden)

    Chen Jing

    2017-01-01

    Full Text Available To meet the need of real-time remote monitoring of human body surface temperature for optical rehabilitation therapy, a non-contact high-precision real-time temperature measurement method based on distance compensation was proposed, and the system design was carried out. The microcontroller controls the infrared temperature measurement module and the laser range module to collect temperature and distance data. The compensation formula of temperature with distance wass fitted according to the least square method. Testing had been performed on different individuals to verify the accuracy of the system. The results indicate that the designed non-contact infrared temperature measurement system has a residual error of less than 0.2°C and the response time isless than 0.1s in the range of 0 to 60cm. This provides a reference for developing long-distance temperature measurement equipment in optical rehabilitation therapy.

  7. The AD and ELENA orbit, trajectory and intensity measurement systems

    Science.gov (United States)

    Marco-Hernández, R.; Alves, D.; Angoletta, M. E.; Marqversen, O.; Molendijk, J.; Oponowicz, E.; Ruffieux, R.; Sánchez-Quesada, J.; SØby, L.

    2017-07-01

    This paper describes the new Antiproton Decelerator (AD) orbit measurement system and the Extra Low ENergy Antiproton ring (ELENA) orbit, trajectory and intensity measurement system. The AD machine at European Organization for Nuclear Research (CERN) is presently being used to decelerate antiprotons from 3.57 GeV/c to 100 MeV/c for matter vs anti-matter comparative studies. The ELENA machine, presently under commissioning, has been designed to provide an extra deceleration stage down to 13.7 MeV/c. The AD orbit system is based on 32 horizontal and 27 vertical electrostatic Beam Position Monitor (BPM) fitted with existing low noise front-end amplifiers while the ELENA system consists of 24 \\gls{BPM}s equipped with new low-noise head amplifiers. In both systems the front-end amplifiers generate a difference (delta) and a sum (sigma) signal which are sent to the digital acquisition system, placed tens of meters away from the AD or ELENA rings, where they are digitized and further processed. The beam position is calculated by dividing the difference signal by the sum signal either using directly the raw digitized data for measuring the turn-by-turn trajectory in the ELENA system or after down-mixing the signals to baseband for the orbit measurement in both machines. The digitized sigma signal will be used in the ELENA system to calculate the bunched beam intensity and the Schottky parameters with coasting beam after passing through different signal processing chain. The digital acquisition arrangement for both systems is based on the same hardware, also used in the ELENA Low Level Radio Frequency (LLRF) system, which follows the VME Switched Serial (VXS) enhancement of the Versa Module Eurocard 64x extension (VME64x) standard and includes VITA 57 standard Field Programmable Gate Array Mezzanine Card (FMC). The digital acquisition Field Programmable Gate Array (FPGA) and Digital Signal Processor (DSP) firmware shares many common functionalities with the LLRF system but

  8. Uma análise das diferenças em termos da cultura a partir do projeto de substituição da IAS 39: financial instruments - recognition and measurement

    Directory of Open Access Journals (Sweden)

    Cláudia Daniela Ferreira da Mota Carvalho

    2015-03-01

    Full Text Available A cultura contabilística de cada país é frequentemente encarada como um obstáculo à plena harmonização contabilística. Este trabalho propõe-se a analisar as diferenças em termos da cultura a partir da participação dos respondentes nos processos de emissão/alteração de normas do International Accounting Standard Board (Iasb. Para o efeito, foram analisadas as comment letters enviadas ao Iasb no contexto da primeira parte da primeira fase do projeto de substituição da International Accounting Standard (IAS 39: Financial Instruments - Recognition and Measurement pela International Financial Reporting Standard (IFRS 9. Os países respondentes foram identificados em função da classificação proposta por Gray (1988, sendo posteriormente os dados recolhidos submetidos ao teste não paramétrico do qui-quadrado. Os resultados deste estudo evidenciam a existência de diferenças em termos da cultura nas respostas obtidas dos países, particularmente no contexto do valor contabilístico do conservadorismo, não se identificando evidências de tais diferenças para os valores do secretismo, do profissionalismo e da uniformidade. Conclui-se, assim, que os países classificados como conservadores têm preferência por práticas de mensuração mais conservadoras, baseadas, designadamente, no custo ou no custo amortizado, em detrimento de critérios de mensuração baseados no justo valor. Pretende-se que os resultados obtidos neste estudo prestem o suporte necessário à tomada de decisões por parte dos organismos emissores de normas internacionais, bem como pelos responsáveis nacionais pela subscrição das referidas normas.

  9. Quantificação das classes de erosão por tipo de uso do solo no município de Franca - SP Measurement of the erosion classes and land use in Franca Municipality - SP, Brazil

    Directory of Open Access Journals (Sweden)

    Paula F. Endres

    2006-04-01

    Full Text Available Impactos ambientais causados pelas atividades agropecuárias sobre o meio rural podem ser constatados quando são analisadas as paisagens da região. Vários estudos demonstraram que informações da paisagem obtidas a partir de imagens fotográficas são indispensáveis para o diagnóstico do processo erosivo do solo, aspecto indispensável no planejamento conservacionista. Neste trabalho, utilizando-se de técnicas de fotointerpretação, foi realizada a quantificação das classes de erosão acelerada no município de Franca - SP, relacionando-as com os tipos de cobertura vegetal. A coleção de fotografias aéreas empregadas foi produzida pela Base Aerofotogrametria e Projetos S.A., com escala aproximada 1:35.000, em outubro de 1990. Elaboraram-se cartas temáticas do uso/ocupação do solo e dos estados erosivos presentes em cada tipo de cobertura vegetal do solo, estabelecendo-se, em seguida, as relações entre a erosão acelerada e os tipos de comunidades vegetais do município de Franca. Os resultados obtidos mostraram que, nesse município, o solo agrícola encontra-se relativamente conservado, apresentando 74,23% da área com erosão laminar ligeira/moderada. Os diferentes usos/ocupações do solo influenciaram de modos distintos na manifestação do processo erosivo.Environment impacts caused by farming activities on agricultural management can be evidenced when the land use is analyzed. Some studies had demonstrated that, the information of the land use from photographic images is essential for identifying the erosive process, indispensable aspect in planning for better land management. In this work, using photointerpretation techniques, the measurement of the erosion classes in Franca Municipality - SP, Brazil, was carried through, relating them with the land uses. The BASE - Aerofotogrametria e Projetos S.A. took the used air photograph collection, with the approach scale of 1:35.000, in October of 1990. The thematic map of land

  10. Development of an integrated control and measurement system

    International Nuclear Information System (INIS)

    Manges, W.W.

    1984-03-01

    This thesis presents a tutorial on the issues involved in the development of a minicomputer-based, distributed intelligence data acquisition and process control system to support complex experimental facilities. The particular system discussed in this thesis is under development for the Atomic Vapor Laser Isotope Separation (AVLIS) Program at the Oak Ridge Gaseous Diffusion Plant (ORGDP). In the AVLIS program, we were careful to integrate the computer sections of the implementation into the instrumentation system rather than adding them as an appendage. We then addressed the reliability and availability of the system as a separate concern. Thus, our concept of an integrated control and measurement (ICAM) system forms the basis for this thesis. This thesis details the logic and philosophy that went into the development of this system and explains why the commercially available turn-key systems generally are not suitable. Also, the issues involved in the specification of the components for such an integrated system are emphasized

  11. Remote measurements of radioactivity distribution with BROKK robotic system - 16147

    International Nuclear Information System (INIS)

    Ivanov, Oleg; Danilovich, Alexey; Stepanov, Vyacheslav; Smirnov, Sergey; Potapov, Victor

    2009-01-01

    Robotic system for the remote measurement of radioactivity in the reactor areas was developed. The BROKK robotic system replaces hand-held radiation measuring tools. The system consists of a collimated gamma detector, a standard gamma detector, color CCD video camera and searchlights, all mounted on a robotic platform (BROKK). The signals from the detectors are coupled with the video signals and are transferred to an operator's console via a radio channel or a cable. Operator works at a safe position. The video image of the object with imposed exposure dose rate from the detectors generates an image on the monitor screen, and the images are recorded for subsequent analysis. Preliminary work has started for the decommissioning of a research reactor at the RRC 'Kurchatov Institute'. Results of the remote radioactivity measurements with new system during radiation inspection waste storage of this reactor are presented and discussed. (authors)

  12. Arrester Resistive Current Measuring System Based on Heterogeneous Network

    Science.gov (United States)

    Zhang, Yun Hua; Li, Zai Lin; Yuan, Feng; Hou Pan, Feng; Guo, Zhan Nan; Han, Yue

    2018-03-01

    Metal Oxide Arrester (MOA) suffers from aging and poor insulation due to long-term impulse voltage and environmental impact, and the value and variation tendency of resistive current can reflect the health conditions of MOA. The common wired MOA detection need to use long cables, which is complicated to operate, and that wireless measurement methods are facing the problems of poor data synchronization and instability. Therefore a novel synchronous measurement system of arrester current resistive based on heterogeneous network is proposed, which simplifies the calculation process and improves synchronization, accuracy and stability and of the measuring system. This system combines LoRa wireless network, high speed wireless personal area network and the process layer communication, and realizes the detection of arrester working condition. Field test data shows that the system has the characteristics of high accuracy, strong anti-interference ability and good synchronization, which plays an important role in ensuring the stable operation of the power grid.

  13. Development of measurement system for gauge block interferometer

    Science.gov (United States)

    Chomkokard, S.; Jinuntuya, N.; Wongkokua, W.

    2017-09-01

    We developed a measurement system for collecting and analyzing the fringe pattern images from a gauge block interferometer. The system was based on Raspberry Pi which is an open source system with python programming and opencv image manipulation library. The images were recorded by the Raspberry Pi camera with five-megapixel capacity. The noise of images was suppressed for the best result in analyses. The low noise images were processed to find the edge of fringe patterns using the contour technique for the phase shift analyses. We tested our system with the phase shift patterns between a gauge block and a reference plate. The phase shift patterns were measured by a Twyman-Green type of interferometer using the He-Ne laser with the temperature controlled at 20.0 °C. The results of the measurement will be presented and discussed.

  14. Measure-valued solutions to the complete Euler system revisited

    Science.gov (United States)

    Březina, Jan; Feireisl, Eduard

    2018-06-01

    We consider the complete Euler system describing the time evolution of a general inviscid compressible fluid. We introduce a new concept of measure-valued solution based on the total energy balance and entropy inequality for the physical entropy without any renormalization. This class of so-called dissipative measure-valued solutions is large enough to include the vanishing dissipation limits of the Navier-Stokes-Fourier system. Our main result states that any sequence of weak solutions to the Navier-Stokes-Fourier system with vanishing viscosity and heat conductivity coefficients generates a dissipative measure-valued solution of the Euler system under some physically grounded constitutive relations. Finally, we discuss the same asymptotic limit for the bi-velocity fluid model introduced by H.Brenner.

  15. A complex network-based importance measure for mechatronics systems

    Science.gov (United States)

    Wang, Yanhui; Bi, Lifeng; Lin, Shuai; Li, Man; Shi, Hao

    2017-01-01

    In view of the negative impact of functional dependency, this paper attempts to provide an alternative importance measure called Improved-PageRank (IPR) for measuring the importance of components in mechatronics systems. IPR is a meaningful extension of the centrality measures in complex network, which considers usage reliability of components and functional dependency between components to increase importance measures usefulness. Our work makes two important contributions. First, this paper integrates the literature of mechatronic architecture and complex networks theory to define component network. Second, based on the notion of component network, a meaningful IPR is brought into the identifying of important components. In addition, the IPR component importance measures, and an algorithm to perform stochastic ordering of components due to the time-varying nature of usage reliability of components and functional dependency between components, are illustrated with a component network of bogie system that consists of 27 components.

  16. Bohmian mechanics, open quantum systems and continuous measurements

    CERN Document Server

    Nassar, Antonio B

    2017-01-01

    This book shows how Bohmian mechanics overcomes the need for a measurement postulate involving wave function collapse. The measuring process plays a very important role in quantum mechanics. It has been widely analyzed within the Copenhagen approach through the Born and von Neumann postulates, with later extension due to Lüders. In contrast, much less effort has been invested in the measurement theory within the Bohmian mechanics framework. The continuous measurement (sharp and fuzzy, or strong and weak) problem is considered here in this framework. The authors begin by generalizing the so-called Mensky approach, which is based on restricted path integral through quantum corridors. The measuring system is then considered to be an open quantum system following a stochastic Schrödinger equation. Quantum stochastic trajectories (in the Bohmian sense) and their role in basic quantum processes are discussed in detail. The decoherence process is thereby described in terms of classical trajectories issuing from th...

  17. Drone based measurement system for radiofrequency exposure assessment.

    Science.gov (United States)

    Joseph, Wout; Aerts, Sam; Vandenbossche, Matthias; Thielens, Arno; Martens, Luc

    2016-03-10

    For the first time, a method to assess radiofrequency (RF) electromagnetic field (EMF) exposure of the general public in real environments with a true free-space antenna system is presented. Using lightweight electronics and multiple antennas placed on a drone, it is possible to perform exposure measurements. This technique will enable researchers to measure three-dimensional RF-EMF exposure patterns accurately in the future and at locations currently difficult to access. A measurement procedure and appropriate measurement settings have been developed. As an application, outdoor measurements are performed as a function of height up to 60 m for Global System for Mobile Communications (GSM) 900 MHz base station exposure. Bioelectromagnetics. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.

  18. Repetibilidade da mensuração de imagens das características de carcaça obtidas por ultrassonografia em fêmeas Nelore Repeatability of ultrasound image measurements of carcass traits in Nellore cattle

    Directory of Open Access Journals (Sweden)

    Maria Eugênia Zerlotti Mercadante

    2010-04-01

    Full Text Available Avaliou-se a repetibilidade da mensuração de imagens de ultrassom da área do músculo longissimus dorsi (AOL e das espessuras de gordura subcutânea do lombo (EGL e da garupa (EGG. Imagens de ultrassom tomadas no lombo (entre a 12ª e a 13ª costela e na garupa (entre os músculos gluteus medium e biceps femoris de novilhas Nelore de 14 a 22 meses de idade foram classificadas em aceitáveis, marginais e rejeitáveis. As imagens aceitáveis e marginais foram mensuradas duas vezes por três técnicos em diferentes níveis de treinamento. Foram estimadas as repetibilidades entre e dentro de técnicos por classe de qualidade da imagem, para determinação do efeito da qualidade da imagem e do técnico no valor absoluto da diferença entre a primeira e a segunda mensuração dessas características. A repetibilidade para as imagens aceitáveis foi maior que para imagens marginais, tanto entre como dentro de técnicos. Na análise da diferença absoluta entre a primeira e a segunda interpretação, foram significativos os efeitos de técnico para AOL e EGL e de classe de qualidade da imagem para AOL. Em geral, o técnico com maior experiência apresentou maiores valores de repetibilidade. É recomendável que a mensuração de imagens de animais de mesmo grupo contemporâneo seja feita por um único técnico.The repeatability of ultrasound image measurements of the longissimus dorsi muscle (AOL and of the rumpfat (EGG and backfat (EGL subcutaneous thickness was evaluated. Ultrasound images taken from the back (between 12th and 13th ribs and from the rump (between gluteus medium and biceps femoris muscles of Nelore heifers at 14 and 22 months of age were classified as acceptable, marginal and rejected. The acceptable and marginal images were measured twice by three technicians at different levels of training. It was estimated repeatabilities among and within technicians by class of image quality in order to determine effect of image quality and of

  19. Limitations and corrections in measuring dynamic characteristics of structural systems

    International Nuclear Information System (INIS)

    Walter, P.L.

    1978-10-01

    The work deals with limitations encountered in measuring the dynamic characteristics of structural systems. Structural loading and response are measured by transducers possessing multiple resonant frequencies in their transfer function. In transient environments, the resultant signals from these transducers are shown to be analytically unpredictable in amplitude level and frequency content. Data recorded during nuclear effects simulation testing on structures are analyzed. Results of analysis can be generalized to any structure which encounters dynamic loading. Methods to improve the recorded data are described which can be implemented on a frequency selective basis during the measurement process. These improvements minimize data distortion attributable to the transfer characteristics of the measuring transducers

  20. A Time-Measurement System Based on Isotopic Ratios

    International Nuclear Information System (INIS)

    Vo, Duc T.; Karpius, P.J.; MacArthur, D.W.; Thron, J.L.

    2007-01-01

    A time-measurement system can be built based on the ratio of gamma-ray peak intensities from two radioactive isotopes. The ideal system would use a parent isotope with a short half-life decaying to a long half-life daughter. The activities of the parent-daughter isotopes would be measured using a gamma-ray detector system. The time can then be determined from the ratio of the activities. The best-known candidate for such a system is the 241 Pu- 241 Am parent-daughter pair. However, this 241 Pu- 241 Am system would require a high-purity germanium detector system and sophisticated software to separate and distinguish between the many gamma-ray peaks produced by the decays of the two isotopes. An alternate system would use two different isotopes, again one with a short half-life and one with a half-life that is long relative to the other. The pair of isotopes 210 Pb and 241 Am (with half-lives of 22 and 432 years, respectively) appears suitable for such a system. This time-measurement system operates by measuring the change in the ratio of the 47-keV peak of 210 Pb to the 60-keV peak of 241 Am. For the system to work reasonably well, the resolution of the detector would need to be such that the two gamma-ray peaks are well separated so that their peak areas can be accurately determined using a simple region-of-interest (ROI) method. A variety of detectors were tested to find a suitable system for this application. The results of these tests are presented here.

  1. Evaluasi perubahan penutupan lahan di DAS Babalan

    OpenAIRE

    Restiana, Inda

    2015-01-01

    Evaluation of land use changes was conducted at DAS Babalan. The research was conducted since July 2012 until December 2012. The purpose of this research are to assess changes in forest land into oil palm land, mapping land suitability classes for palm oil and to know the quality of forest land and land oil palm. Method to assess changes in the land area is done by utilizing remote sensing and geographic information systems (GIS). assessing the changes was conducted by overlayed land use maps...

  2. The correction of vibration in frequency scanning interferometry based absolute distance measurement system for dynamic measurements

    Science.gov (United States)

    Lu, Cheng; Liu, Guodong; Liu, Bingguo; Chen, Fengdong; Zhuang, Zhitao; Xu, Xinke; Gan, Yu

    2015-10-01

    Absolute distance measurement systems are of significant interest in the field of metrology, which could improve the manufacturing efficiency and accuracy of large assemblies in fields such as aircraft construction, automotive engineering, and the production of modern windmill blades. Frequency scanning interferometry demonstrates noticeable advantages as an absolute distance measurement system which has a high precision and doesn't depend on a cooperative target. In this paper , the influence of inevitable vibration in the frequency scanning interferometry based absolute distance measurement system is analyzed. The distance spectrum is broadened as the existence of Doppler effect caused by vibration, which will bring in a measurement error more than 103 times bigger than the changes of optical path difference. In order to decrease the influence of vibration, the changes of the optical path difference are monitored by a frequency stabilized laser, which runs parallel to the frequency scanning interferometry. The experiment has verified the effectiveness of this method.

  3. Development of the software of the data taking system SOS for the SAPHIR experiment. Entwicklung der Software des Datennahmesystems SOS fuer das SAPHIR-Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Manns, J.

    1989-02-01

    The data acquistion system SOS has been developed for the SAPHIR experiment at the Bonn stretcher ring ELSA. It can handle up to 280 kilobytes of data per second or a maximum triggerrate of 200 Hz. The multiprocessor based online system consists of twenty VIP-microprocessors and two VAX-computers. Each component of the SAPHIR experiment has at least one program in the online system to maintain special functions for this specific component. All of these programs can receive event data without interfering with the transfer of events to a mass storage for offline analysis. A special program SOL has been developed to serve as a user interface to the data acquisition system and as a status display for most of the programs of the online system. Using modern features like windowing and mouse control on a VAX-station the SAPHIR online SOL establishes an easy way of controlling the data acquisition system. (orig.).

  4. Investigation and measures to noise on spectroscopic measurement system in JT-60U

    International Nuclear Information System (INIS)

    Nagaya, Susumu; Kubo, Hirotaka; Sugie, Tatsuo; Onizawa, Masami; Kawai, Isao; Nakata, Hisao.

    1997-11-01

    Breakdown of a negative-ion-based neutral beam injection (N-NBI) has caused noise trouble to several systems. The control circuit of a spectroscopic measurement system had not well worked because of the noise. The noise has been measured by an optical-fiber isolation system during operation of JT-60U. The amplitude and the frequency were 15-18 V and 15 MHz respectively. The transmission noise has been reduced by putting ferrite cores to all cables connecting with the control circuits. As a result, the trouble with the spectroscopic measurement system has completely been solved. Adding condensers and resistors to the circuit was not effective to reduce the noise. (author)

  5. Development of a new data-acquisition system for the CB-ELSA experiment; Entwicklung eines neuen Datenakquisitionssystems fuer das CB-ELSA-Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt, C.

    2004-07-01

    In the framework of this thesis a data-acquisition system was developed and successfully taken into operation. The software of the system was on the base of C++ completely newly implemented and the number of the source-code rows amounts to 82,494 rows. A system was created, which is ''to above'' open, i.e.: Hardware components were applied, which are coupled via standardized procedures (TCP/IP, Linux, C++,..). By this a power increasement of the system is possible by exchange of hardware components.

  6. Three-dimensional measurement system for crime scene documentation

    Science.gov (United States)

    Adamczyk, Marcin; Hołowko, Elwira; Lech, Krzysztof; Michoński, Jakub; MÄ czkowski, Grzegorz; Bolewicki, Paweł; Januszkiewicz, Kamil; Sitnik, Robert

    2017-10-01

    Three dimensional measurements (such as photogrammetry, Time of Flight, Structure from Motion or Structured Light techniques) are becoming a standard in the crime scene documentation process. The usage of 3D measurement techniques provide an opportunity to prepare more insightful investigation and helps to show every trace in the context of the entire crime scene. In this paper we would like to present a hierarchical, three-dimensional measurement system that is designed for crime scenes documentation process. Our system reflects the actual standards in crime scene documentation process - it is designed to perform measurement in two stages. First stage of documentation, the most general, is prepared with a scanner with relatively low spatial resolution but also big measuring volume - it is used for the whole scene documentation. Second stage is much more detailed: high resolution but smaller size of measuring volume for areas that required more detailed approach. The documentation process is supervised by a specialised application CrimeView3D, that is a software platform for measurements management (connecting with scanners and carrying out measurements, automatic or semi-automatic data registration in the real time) and data visualisation (3D visualisation of documented scenes). It also provides a series of useful tools for forensic technicians: virtual measuring tape, searching for sources of blood spatter, virtual walk on the crime scene and many others. In this paper we present our measuring system and the developed software. We also provide an outcome from research on metrological validation of scanners that was performed according to VDI/VDE standard. We present a CrimeView3D - a software-platform that was developed to manage the crime scene documentation process. We also present an outcome from measurement sessions that were conducted on real crime scenes with cooperation with Technicians from Central Forensic Laboratory of Police.

  7. Sistema previdenciário sob a ótica das finanças comportamentais Social security system in the perspective of behavioral finance

    Directory of Open Access Journals (Sweden)

    Hans Michael Van Bellen

    2012-04-01

    Full Text Available A decisão de como e onde investir o dinheiro está ligada ao nível de risco que se deseja assumir em relação ao retorno esperado. Assim, este artigo buscou demonstrar a influência do comportamento humano quanto ao crescimento dos fundos de investimentos no Brasil, por meio de um levantamento de dados pertinentes à previdência. A presente pesquisa é exploratória, prática, com fonte de dados primária e secundária. O estudo é qualitativo-quantitativo e de natureza indutiva. Os resultados demonstraram que: a maioria das pessoas ou não faz planejamento em longo prazo (63% ou o faz para, no máximo, os próximos cinco anos (40%; 37% esperam ganhar de 9 a 12 salários; 40,0% dos respondentes investem em planos de previdência ou pretendem fazer outros investimentos (43%; 77% dos respondentes investiriam num plano de previdência e 80,0% manifestaram a crença de que haveria o recebimento da aposentadoria; 67,0% dos respondentes não contribuiriam com o INSS caso este fosse facultativo; em relação às denúncias de fraude no INSS, 73% acham que estas vão interferir em sua aposentadoria futura. Como conclusão, observa-se que, embora as pessoas acreditem que não receberiam seu benefício futuramente, a maioria tem mais segurança no INSS do que nos planos de previdência privada. The decision of as and where to invest the money he is on to the risk level that if it desires to assume in relation to the waited return. Thus, this article searched to demonstrate the influence of the human behavior in relation to the growth of the investment funds in Brazil by means of a pertinent data-collecting to the providence. The present research is exploratory, practical, with primary and secondary source of data. The study he is qualitative-quantitative, and has an inductive nature. The results had demonstrated that: the majority of the people or does not make planning in long stated period (63%, or it makes it stops in the maximum next the five

  8. DAQ system for low density plasma parameters measurement

    International Nuclear Information System (INIS)

    Joshi, Rashmi S.; Gupta, Suryakant B.

    2015-01-01

    In various cases where low density plasmas (number density ranges from 1E4 to 1E6 cm -3 ) exist for example, basic plasma studies or LEO space environment measurement of plasma parameters becomes very critical. Conventional tip (cylindrical) Langmuir probes often result into unstable measurements in such lower density plasma. Due to larger surface area, a spherical Langmuir probe is used to measure such lower plasma densities. Applying a sweep voltage signal to the probe and measuring current values corresponding to these voltages gives V-I characteristics of plasma which can be plotted on a digital storage oscilloscope. This plot is analyzed for calculating various plasma parameters. The aim of this paper is to measure plasma parameters using a spherical Langmuir probe and indigenously developed DAQ system. DAQ system consists of Keithley source-meter and a host system connected by a GPIB interface. An online plasma parameter diagnostic system is developed for measuring plasma properties for non-thermal plasma in vacuum. An algorithm is developed using LabVIEW platform. V-I characteristics of plasma are plotted with respect to different filament current values and different locations of Langmuir probe with reference to plasma source. V-I characteristics is also plotted for forward and reverse voltage sweep generated programmatically from the source meter. (author)

  9. Multipartite entanglement in fermionic systems via a geometric measure

    International Nuclear Information System (INIS)

    Lari, Behzad; Durganandini, P.; Joag, Pramod S.

    2010-01-01

    We study multipartite entanglement in a system consisting of indistinguishable fermions. Specifically, we have proposed a geometric entanglement measure for N spin-(1/2) fermions distributed over 2L modes (single-particle states). The measure is defined on the 2L qubit space isomorphic to the Fock space for 2L single-particle states. This entanglement measure is defined for a given partition of 2L modes containing m≥2 subsets. Thus this measure applies to m≤2L partite fermionic systems where L is any finite number, giving the number of sites. The Hilbert spaces associated with these subsets may have different dimensions. Further, we have defined the local quantum operations with respect to a given partition of modes. This definition is generic and unifies different ways of dividing a fermionic system into subsystems. We have shown, using a representative case, that the geometric measure is invariant under local unitary operators corresponding to a given partition. We explicitly demonstrate the use of the measure to calculate multipartite entanglement in some correlated electron systems.

  10. Dose measurements in space by the Hungarian Pille TLD system

    International Nuclear Information System (INIS)

    Apathy, I.; Deme, S.; Feher, I.; Akatov, Y.A.; Reitz, G.; Arkhanguelski, V.V.

    2002-01-01

    Exposure of crew, equipment, and experiments to the ambient space radiation environment in low Earth orbit poses one of the most significant problems to long-term space habitation. Accurate dose measurement has become increasingly important during the assembly (extravehicular activity (EVA)) and operation of space stations such as on Space Station Mir. Passive integrating detector systems such as thermoluminescent dosemeters (TLDs) are commonly used for dosimetry mapping and personal dosimetry on space vehicles. The well-known advantages of passive detector systems are their independence of power supply, small dimensions, high sensitivity, good stability, wide measuring range, resistance to environmental effects, and relatively low cost. Nevertheless, they have the general disadvantage that for evaluation purposes they need a laboratory or large--in mass and power consumption--terrestrial equipment, and consequently they cannot provide time-resolved dose data during long-term space flights. KFKI Atomic Energy Research Institute (KFKI AEKI) has developed and manufactured a series of thermoluminescent dosemeter systems for measuring cosmic radiation doses in the 10 μGy to 10 Gy range, consisting of a set of bulb dosemeters and a compact, self-contained, TLD reader suitable for on-board evaluation of the dosemeters. By means of such a system, highly accurate measurements were carried out on board the Salyut-6, -7 and Mir Space Stations as well as on the Space Shuttle. A detailed description of the system is given and the comprehensive results of these measurements are summarised

  11. Estudo comparativo das medidas ecobiométricas pelos métodos de imersão e contato Comparative study of the biometric measurements made by immersion and contact techniques

    Directory of Open Access Journals (Sweden)

    Airton Leite Kronbauer

    2006-12-01

    Full Text Available OBJETIVO: Comparar os achados clínicos ecobiométricos das medidas dos métodos de imersão e contato. MÉTODOS: O comprimento axial foi medido em 120 ecobiometrias por onda "A" em 60 pacientes com catarata, usando o método de imersão (não-contato e de contato, em amostra pareada. RESULTADOS: A média do comprimento axial encontrada foi de 23,19 mm (DP 1,32 com o método de imersão e 22,93 mm (DP 1,32 com o método de contato, usando a mesma sonda ultra-sônica. A diferença de 0,255 mm (DP 0,3 foi estatisticamente significativa para o nível de 0,01. A diferença deve ser levada em conta quando se estima precisão no cálculo de lente intra-ocular. A média do desvio padrão entre as repetidas medidas no mesmo olho foi de 0,04 com o método de imersão e 0,19 com o método de contato. A diferença de 0,15 foi estatisticamente significativa para o nível de 0,01. A diferença deve ser levada em conta quando se estima precisão na reprodutibilidade da técnica de exame. CONCLUSÃO: Esses dados fornecem parâmetros que podem ser usados para monitorar a prática clínica e para realizar outros estudos.PURPOSE: To compare clinical biometric findings between measurements of immersion technique and contact technique. METHODS: Axial length was measured by A-scan in 120 medical examinations in 60 patients with cataract using a non-contact (immersion and a contact technique in paired-samples by ultrasound. RESULTS: The mean axial length was found to be 23.19 mm (SD 1.32 with the immersion technique and 22.93 mm (SD 1.32 with the contact technique, using the same transducer probe. The difference of 0.255 mm (SD 0.3 was significant at the 0.01 level. The difference should be taken into account when evaluating the accuracy of IOL calculation. The mean standard deviation between recurrent measures in same eye was found to be 0.04 with the immersion technique and 0.19 with the contact technique. The difference of 0.15 was significant at the 0.01 level

  12. Mammographic density measurements are not affected by mammography system.

    Science.gov (United States)

    Damases, Christine N; Brennan, Patrick C; McEntee, Mark F

    2015-01-01

    Mammographic density (MD) is a significant risk factor for breast cancer and has been shown to reduce the sensitivity of mammography screening. Knowledge of a woman's density can be used to predict her risk of developing breast cancer and personalize her imaging pathway. However, measurement of breast density has proven to be troublesome with wide variations in density recorded using radiologists' visual Breast Imaging Reporting and Data System (BIRADS). Several automated methods for assessing breast density have been proposed, each with their own source of measurement error. The use of differing mammographic imaging systems further complicates MD measurement, especially for the same women imaged over time. The purpose of this study was to investigate whether having a mammogram on differing manufacturer's equipment affects a woman's MD measurement. Raw mammographic images were acquired on two mammography imaging systems (General Electric and Hologic) one year apart and processed using VolparaDensity™ to obtain the Volpara Density Grade (VDG) and average volumetric breast density percentage (AvBD%). Visual BIRADS scores were also obtained from 20 expert readers. BIRADS scores for both systems showed strong positive correlation ([Formula: see text]; [Formula: see text]), while the VDG ([Formula: see text]; [Formula: see text]) and AvBD% ([Formula: see text]; [Formula: see text]) showed stronger positive correlations. Substantial agreement was shown between the systems for BIRADS ([Formula: see text]; [Formula: see text]), however, the systems demonstrated an almost perfect agreement for VDG ([Formula: see text]; [Formula: see text]).

  13. Development of film dosimetric measurement system for verification of RTP

    International Nuclear Information System (INIS)

    Chen Yong; Bao Shanglian; Ji Changguo; Zhang Xin; Wu Hao; Han Shukui; Xiao Guiping

    2007-01-01

    Objective: To develop a novel film dosimetry system based on general laser scanner in order to verify patient-specific Radiotherapy Treatment Plan(RTP) in three-Dimensional Adaptable Radiotherapy(3D ART) and Intensity Modulated Radiotherapy (IMRT). Methods: Some advanced methods, including film saturated development, wavelet filtering with multi-resolution thresholds and discrete Fourier reconstruction are employed in this system to reduce artifacts, noise and distortion induced by film digitizing with general scanner; a set of coefficients derived from Monte Carlo(MC) simulation are adopted to correct the film over-response to low energy scattering photons; a set of newly emerging criteria, including γ index and Normalized Agreement Test (NAT) method, are employed to quantitatively evaluate agreement of 2D dose distributions between the results measured by the films and calculated by Treatment Planning System(TPS), so as to obtain straightforward presentations, displays and results with high accuracy and reliability. Results: Radiotherapy doses measured by developed system agree within 2% with those measured by ionization chamber and VeriSoft Film Dosimetry System, and quantitative evaluation indexes are within 3%. Conclusions: The developed system can be used to accurately measure the radiotherapy dose and reliably make quantitative evaluation for RTP dose verification. (authors)

  14. Interferometric system with tracking refractometry capability in the measuring axis

    International Nuclear Information System (INIS)

    Lazar, J; Holá, M; Číp, O; Hrabina, J; Oulehla, J

    2013-01-01

    We present a combined interferometric arrangement designed for measurement of one-axis displacement over a specified measuring range with mechanical referencing. This concept allows simultaneous measurement of the carriage position from both sides together with monitoring of the overall range. This can be used in configuration with in-line monitoring of the fluctuations of the refractive index-–tracking refractometry. Similarly, the wavelength of the laser source can be stabilized over the measuring range, effectively compensating for the refractive index changes. Otherwise, monitoring of length of the measuring range can give information about the thermal dilatation effects of frame of the whole measuring setup. This technique can find its way into high-precision positioning systems in nanometrology. (technical design note)

  15. Towards a smart non-invasive fluid loss measurement system.

    Science.gov (United States)

    Suryadevara, N K; Mukhopadhyay, S C; Barrack, L

    2015-04-01

    In this article, a smart wireless sensing non-invasive system for estimating the amount of fluid loss, a person experiences while physical activity is presented. The system measures three external body parameters, Heart Rate, Galvanic Skin Response (GSR, or skin conductance), and Skin Temperature. These three parameters are entered into an empirically derived formula along with the user's body mass index, and estimation for the amount of fluid lost is determined. The core benefit of the developed system is the affluence usage in combining with smart home monitoring systems to care elderly people in ambient assisted living environments as well in automobiles to monitor the body parameters of a motorist.

  16. Magnetic-Field-Response Measurement-Acquisition System

    Science.gov (United States)

    Woodward, Stanley E.; Shams, Qamar A.; Fox, Robert L.; Taylor, Bryant D.

    2006-01-01

    A measurement-acquisition system uses magnetic fields to power sensors and to acquire measurements from sensors. The system alleviates many shortcomings of traditional measurement-acquisition systems, which include a finite number of measurement channels, weight penalty associated with wires, use limited to a single type of measurement, wire degradation due to wear or chemical decay, and the logistics needed to add new sensors. Eliminating wiring for acquiring measurements can alleviate potential hazards associated with wires, such as damaged wires becoming ignition sources due to arcing. The sensors are designed as electrically passive inductive-capacitive or passive inductive-capacitive-resistive circuits that produce magnetic-field-responses. One or more electrical parameters (inductance, capacitance, and resistance) of each sensor can be variable and corresponds to a measured physical state of interest. The magnetic-field- response attributes (frequency, amplitude, and bandwidth) of the inductor correspond to the states of physical properties for which each sensor measures. For each sensor, the measurement-acquisition system produces a series of increasing magnetic-field harmonics within a frequency range dedicated to that sensor. For each harmonic, an antenna electrically coupled to an oscillating current (the frequency of which is that of the harmonic) produces an oscillating magnetic field. Faraday induction via the harmonic magnetic fields produces an electromotive force and therefore a current in the sensor. Once electrically active, the sensor produces its own harmonic magnetic field as the inductor stores and releases magnetic energy. The antenna of the measurement- acquisition system is switched from a transmitting to a receiving mode to acquire the magnetic-field response of the sensor. The rectified amplitude of the received response is compared to previous responses to prior transmitted harmonics, to ascertain if the measurement system has detected a

  17. Research on Accuracy of Automatic System for Casting Measuring

    Directory of Open Access Journals (Sweden)

    Jaworski J.

    2016-09-01

    Full Text Available Ensuring the required quality of castings is an important part of the production process. The quality control should be carried out in a fast and accurate way. These requirements can be met by the use of an optical measuring system installed on the arm of an industrial robot. In the article a methodology for assessing the quality of robotic measurement system to control certain feature of the casting, based on the analysis of repeatability and reproducibility is presented. It was shown that industrial robots equipped with optical measuring systems have the accuracy allowing their use in the process of dimensional control of castings manufactured by lost-wax process, permanent-mould casting, and pressure die-casting.

  18. Strain Measurement System Developed for Biaxially Loaded Cruciform Specimens

    Science.gov (United States)

    Krause, David L.

    2000-01-01

    A new extensometer system developed at the NASA Glenn Research Center at Lewis Field measures test area strains along two orthogonal axes in flat cruciform specimens. This system incorporates standard axial contact extensometers to provide a cost-effective high-precision instrument. The device was validated for use by extensive testing of a stainless steel specimen, with specimen temperatures ranging from room temperature to 1100 F. In-plane loading conditions included several static biaxial load ratios, plus cyclic loadings of various waveform shapes, frequencies, magnitudes, and durations. The extensometer system measurements were compared with strain gauge data at room temperature and with calculated strain values for elevated-temperature measurements. All testing was performed in house in Glenn's Benchmark Test Facility in-plane biaxial load frame.

  19. Geometrical calibration television measuring systems with solid state photodetectors

    Science.gov (United States)

    Matiouchenko, V. G.; Strakhov, V. V.; Zhirkov, A. O.

    2000-11-01

    The various optical measuring methods for deriving information about the size and form of objects are now used in difference branches- mechanical engineering, medicine, art, criminalistics. Measuring by means of the digital television systems is one of these methods. The development of this direction is promoted by occurrence on the market of various types and costs small-sized television cameras and frame grabbers. There are many television measuring systems using the expensive cameras, but accuracy performances of low cost cameras are also interested for the system developers. For this reason inexpensive mountingless camera SK1004CP (format 1/3', cost up to 40$) and frame grabber Aver2000 were used in experiments.

  20. Measurement system for nitrous oxide based on amperometric gas sensor

    Science.gov (United States)

    Siswoyo, S.; Persaud, K. C.; Phillips, V. R.; Sneath, R.

    2017-03-01

    It has been well known that nitrous oxide is an important greenhouse gas, so monitoring and control of its concentration and emission is very important. In this work a nitrous oxide measurement system has been developed consisting of an amperometric sensor and an appropriate lab-made potentiostat that capable measuring picoampere current ranges. The sensor was constructed using a gold microelectrode as working electrode surrounded by a silver wire as quasi reference electrode, with tetraethyl ammonium perchlorate and dimethylsulphoxide as supporting electrolyte and solvent respectively. The lab-made potentiostat was built incorporating a transimpedance amplifier capable of picoampere measurements. This also incorporated a microcontroller based data acquisition system, controlled by a host personal computer using a dedicated computer program. The system was capable of detecting N2O concentrations down to 0.07 % v/v.

  1. Potential drop crack measurement systems for CANDU components

    Energy Technology Data Exchange (ETDEWEB)

    Sahney, R [Carleton Univ., Ottawa, ON (Canada)

    1994-12-31

    A project to develop an automated crack measurement system for CANDU pressure tube burst testing is currently underway. The system will utilize either Direct Current Potential Drop (DCPD) or Alternating Current Potential Drop (ACPD) techniques for crack measurement. The preliminary stage of the project involves testing and comparison of both ACPD and DCPD methods on a Zr - 2.5% Nb alloy plate with saw cuts (used to simulate cracks). Preliminary results show that both ACPD and DCPD techniques are capable of detecting cracks; further testing is in progress to determine the ability of each of the two systems to make accurate crack depth measurements. This paper will describe the two potential drop techniques and will present test results from the experimental program. (author). 10 refs., 7 figs.

  2. Field-Deployable Acoustic Digital Systems for Noise Measurement

    Science.gov (United States)

    Shams, Qamar A.; Wright, Kenneth D.; Lunsford, Charles B.; Smith, Charlie D.

    2000-01-01

    Langley Research Center (LaRC) has for years been a leader in field acoustic array measurement technique. Two field-deployable digital measurement systems have been developed to support acoustic research programs at LaRC. For several years, LaRC has used the Digital Acoustic Measurement System (DAMS) for measuring the acoustic noise levels from rotorcraft and tiltrotor aircraft. Recently, a second system called Remote Acquisition and Storage System (RASS) was developed and deployed for the first time in the field along with DAMS system for the Community Noise Flight Test using the NASA LaRC-757 aircraft during April, 2000. The test was performed at Airborne Airport in Wilmington, OH to validate predicted noise reduction benefits from alternative operational procedures. The test matrix was composed of various combinations of altitude, cutback power, and aircraft weight. The DAMS digitizes the acoustic inputs at the microphone site and can be located up to 2000 feet from the van which houses the acquisition, storage and analysis equipment. Digitized data from up to 10 microphones is recorded on a Jaz disk and is analyzed post-test by microcomputer system. The RASS digitizes and stores acoustic inputs at the microphone site that can be located up to three miles from the base station and can compose a 3 mile by 3 mile array of microphones. 16-bit digitized data from the microphones is stored on removable Jaz disk and is transferred through a high speed array to a very large high speed permanent storage device. Up to 30 microphones can be utilized in the array. System control and monitoring is accomplished via Radio Frequency (RF) link. This paper will present a detailed description of both systems, along with acoustic data analysis from both systems.

  3. APD Response Time Measurements for Future TOF-E Systems

    Science.gov (United States)

    Starkey, M. J.; Ogasawara, K.; Dayeh, M. A.; Desai, M. I.

    2017-12-01

    In space physics, the ability to detect ions is crucial to understanding plasma distributions in the solar wind. This usually typically requires the determination of the particle's mass, charge, and total energy. Current ion detection schemes are implemented in three sequential parts; an electrostatic analyzer for energy per charge (E/Q) measurements, a time-of-flight (TOF) for mass per charge (M/Q) measurements, and a solid-state detector (SSD) for total energy (E) measurements. Recent work has suggested the use of avalanche photodiode detectors (APD) for a simultaneous TOF and total energy (TOF-E) measurement system, which would replace traditional SSDs, simplify design, and reduce costs. Although TOF based ion spectrometry typically requires timing resolution of systems.

  4. [A focused sound field measurement system by LabVIEW].

    Science.gov (United States)

    Jiang, Zhan; Bai, Jingfeng; Yu, Ying

    2014-05-01

    In this paper, according to the requirement of the focused sound field measurement, a focused sound field measurement system was established based on the LabVIEW virtual instrument platform. The system can automatically search the focus position of the sound field, and adjust the scanning path according to the size of the focal region. Three-dimensional sound field scanning time reduced from 888 hours in uniform step to 9.25 hours in variable step. The efficiency of the focused sound field measurement was improved. There is a certain deviation between measurement results and theoretical calculation results. Focal plane--6 dB width difference rate was 3.691%, the beam axis--6 dB length differences rate was 12.937%.

  5. System of measurement of proton polarization in a polarized target

    Energy Technology Data Exchange (ETDEWEB)

    Karnaukov, I.M.; Chechetenko, V.F.; Lukhanin, A.A.; Telegin, Y.N.; Trotsenko, V.I.

    1985-05-01

    This paper describes a nuclear magnetic resonance spectrometer with high sensitivity. The signal of NMR absorption is recorded by a Q-meter with a series circuit and a circuit for compensation of the resonance characteristic of the measuring circuit. In order to ensure uniform sensitivity of the system to the state of polarization throughout the volume of the target and to enhance the S/N ration the measuring coil is made of a flat conductor. The polarization-measuring system works on-line with an M-6000 computer. The total error of measurement of the polarization of free protons in a target with allowance for the error due to local depolarization of free protons in a target with allowance for the error due to local depolarization of the working substance under irradiation with an intense photon beam is less than or equal to 6%.

  6. Das DELA-NOBA Projekt

    DEFF Research Database (Denmark)

    Daryai-Hansen, Petra; Meister, Maive; Tonello, Elisa

    2015-01-01

    in the English language classroom in Argentina and Denmark var et delprojekt under et større internationalt samarbejde, koordineret af Michael Byram, og belyste, hvordan interkulturelt medborgerskab kan styrkes i grundskolens læringsrum (Byram et al. under udgivelse). Grundidéen i interkulturelle......Artiklen præsenterer et udviklings- og forskningsprojekt på Randersgades Skole. I projektet deltog elever fra 7.v og en 5./6. klasse fra Argentina i et arrangeret kultur- og sprogmøde inden for rammerne af deres engelskundervisning. Projektet Green Kidz. Intercultural environmental citizenship...... langues-Ansatz noch weitreichend unbekannt. Das Projekt Developing the Language Awareness/ Éveil aux langues Approach in the Nordic and Baltic Countries (DELA- NOBA), das von 2013 bis 2016 von NordPlus Horizontal finanziert wird, etabliert eine Zusammenarbeit zwischen Universitäten und Pilotschulen aus...

  7. Discrete time interval measurement system: fundamentals, resolution and errors in the measurement of angular vibrations

    International Nuclear Information System (INIS)

    Gómez de León, F C; Meroño Pérez, P A

    2010-01-01

    The traditional method for measuring the velocity and the angular vibration in the shaft of rotating machines using incremental encoders is based on counting the pulses at given time intervals. This method is generically called the time interval measurement system (TIMS). A variant of this method that we have developed in this work consists of measuring the corresponding time of each pulse from the encoder and sampling the signal by means of an A/D converter as if it were an analog signal, that is to say, in discrete time. For this reason, we have denominated this method as the discrete time interval measurement system (DTIMS). This measurement system provides a substantial improvement in the precision and frequency resolution compared with the traditional method of counting pulses. In addition, this method permits modification of the width of some pulses in order to obtain a mark-phase on every lap. This paper explains the theoretical fundamentals of the DTIMS and its application for measuring the angular vibrations of rotating machines. It also displays the required relationship between the sampling rate of the signal, the number of pulses of the encoder and the rotating velocity in order to obtain the required resolution and to delimit the methodological errors in the measurement

  8. A noncontact laser system for measuring soil surface topography

    International Nuclear Information System (INIS)

    Huang, C.; White, I.; Thwaite, E.G.; Bendeli, A.

    1988-01-01

    Soil surface topography profoundly influences runoff hydrodynamics, soil erosion, and surface retention of water. Here we describe an optical noncontact system for measuring soil surface topography. Soil elevation is measured by projecting a laser beam onto the surface and detecting the position of the interception point. The optical axis of the detection system is oriented at a small angle to the incident beam. A low-power HeNe (Helium-Neon) laser is used as the laser source, a photodiode array is used as the laser image detector and an ordinary 35-mm single lens reflex camera provides the optical system to focus the laser image onto the diode array. A wide spectrum of measurement ranges (R) and resolutions are selectable, from 1 mm to 1 m. These are determined by the laser-camera distance and angle, the focal length of the lens, and the sensing length of the diode array and the number of elements (N) contained in the array. The resolution of the system is approximately R/2N. We show for the system used here that this resolution is approximately 0.2%. In the configuration selected, elevation changes of 0.16 mm could be detected over a surface elevation range of 87 mm. The sampling rate of the system is 1000 Hz, which permits soil surfaces to be measured at speeds of up to 1 m s −1 with measurements taken at 1-mm spacing. Measurements of individual raindrop impacts on the soil and of soil surfaces before and after rain show the versatility of the laser surface profiler, which has applications in studies of erosion processes, surface storage and soil trafficability

  9. Speech motor coordination in Dutch-speaking children with DAS studied with EMMA

    NARCIS (Netherlands)

    Nijland, L.; Maassen, B.A.M.; Hulstijn, W.; Peters, H.F.M.

    2004-01-01

    Developmental apraxia of speech (DAS) is generally classified as a 'speech motor' disorder. Direct measurement of articulatory movement is, however, virtually non-existent. In the present study we investigated the coordination between articulators in children with DAS using kinematic measurements.

  10. Online high sensitivity measurement system for transuranic aerosols

    International Nuclear Information System (INIS)

    Kordas, J.F.; Phelps, P.L.

    1976-01-01

    A measurement system for transuranic aerosols has been designed that will be able to withstand the corrosive nature of stack effluents and yet have extremely high sensitivity. It will be capable of measuring 1 maximum permissible concentration (MPC) of plutonium or americium in 30 minutes with a fractional standard deviation of less than 0.33. Background resulting from 218 Po is eliminated by alpha energy discrimination and a decay scheme analysis. A microprocessor controls all data acquisition, data reduction, and instrument calibration

  11. An Examination of Organizatinal Performance Measurement System Utilization

    OpenAIRE

    DeBusk, Gerald Kenneth

    2003-01-01

    This dissertation provides results of three studies, which examine the utilization of organizational performance measurement systems. Evidence gathered in the first study provides insight into the number of perspectives or components found in the evaluation of an organization's performance and the relative weight placed on those components. The evidence suggests that the number of performance measurement components and their relative composition is situational. Components depend heavily on th...

  12. SLC Arc transport system: AG-magnet measurement and performance

    International Nuclear Information System (INIS)

    Weng, W.T.; Anderson, M.; Byers, R.; Cobb, J.; Fischer, G.; Hamilton, V.

    1985-03-01

    This paper describes the design, construction, and operation of devices used to rapidly measure the mechanical and magnetic properties of some 950 Alternate gradient magnets used in the arc system of the Stanford Linear Collider. The problems of dealing with the measurement of the transverse dimensions to within minute (0.0001 in.) resolution of objects that are 8 ft long are discussed. Early results from the production runs of these magnets are presented. 7 refs., 6 figs

  13. Laser Tracker Calibration - Testing the Angle Measurement System -

    Energy Technology Data Exchange (ETDEWEB)

    Gassner, Georg; Ruland, Robert; /SLAC

    2008-12-05

    Physics experiments at the SLAC National Accelerator Laboratory (SLAC) usually require high accuracy positioning, e. g. 100 {micro}m over a distance of 150 m or 25 {micro}m in a 10 x 10 x 3 meter volume. Laser tracker measurement systems have become one of the most important tools for achieving these accuracies when mapping components. The accuracy of these measurements is related to the manufacturing tolerances of various individual components, the resolutions of measurement systems, the overall precision of the assembly, and how well imperfections can be modeled. As with theodolites and total stations, one can remove the effects of most assembly and calibration errors by measuring targets in both direct and reverse positions and computing the mean to obtain the result. However, this approach does not compensate for errors originating from the encoder system. In order to improve and gain a better understanding of laser tracker angle measurement tolerances we extended our laboratory's capabilities with the addition of a horizontal angle calibration test stand. This setup is based on the use of a high precision rotary table providing an angular accuracy of better than 0.2 arcsec. Presently, our setup permits only tests of the horizontal angle measurement system. A test stand for vertical angle calibration is under construction. Distance measurements (LECOCQ & FUSS, 2000) are compared to an interferometer bench for distances of up to 32 m. Together both tests provide a better understanding of the instrument and how it should be operated. The observations also provide a reasonable estimate of covariance information of the measurements according to their actual performance for network adjustments.

  14. Novel annular flow electromagnetic measurement system for drilling engineering.

    OpenAIRE

    Ge, L.; Wei, G. H.; Wang, Q.; Hu, Z.; Li, J. L.

    2017-01-01

    Downhole micro-flux control drilling technology can effectively solve drilling accidents, such as kick and loss in narrow density window drilling scenarios. Using a downhole annular flow measurement system to obtain real-time information of downhole annular flow is the core and foundation of downhole micro-flux control drilling technology. The research work of electromagnetic flowmeters in recent years creates a challenge for downhole annular flow measurement. This paper proposes a new method...

  15. Implementation of radioactive wastes management system in nuclear medicine service of Hospital das Clinicas of Universidade de Campinas - UNICAMP, in Sao Paulo State, Brazil

    International Nuclear Information System (INIS)

    Rinaldi Neto, A.; Coelho, R.F.; Brunetto, S.Q.

    2001-01-01

    This work reports the experience acquired at the Servico de Medicina Nuclear of the Hospital de Clinicas/UNICAMP (SMN/HC) in planning and implementing the management system of radioactive waste. This system respects the Comissao Nacional de Energia Nuclear' (CNEN) standards and has been of relatively easy and simple performance, without disturbing the SMN/HC's routine. It has also proof to keep its quality along the time. (author)

  16. Floating data acquisition system for microwave calorimeter measurements on MTX

    International Nuclear Information System (INIS)

    Sewall, N.R.

    1989-01-01

    A microwave calorimeter has been designed for making 140-GHz absorption measurements on the MTX. Measurement of the intensity and spatial distribution of the FEL-generated microwave beam on the inner wall will indicate the absorption characteristics of the plasma when heated with a 140 GHz FEL pulse. The calorimeter works by monitoring changes of temperature in silicon carbide tiles located on the inner wall of the tokamak. Thermistors are used to measure the temperature of each tile. The tiles are located inside the tokamak about 1 cm outside of the limiter radius at machine potential. The success of this measurement depends on our ability to float the data acquisition system near machine potential and isolate it from the rest of the vault ground system. Our data acquisition system has 48 channels of thermistor signal conditioning, a multiplexer and digitizer section, a serial data formatter, and a fiber-optic transmitter to send the data out. Additionally, we bring timing signals to the interface through optical fibers to tell it when to begin measurement, while maintaining isolation. The receiver is an HP 200 Series computer with a serial data interface; the computer provides storage and local display for the shot temperature profile. Additionally, the computer provides temporary storage of the data until it can be passed to a shared resource management system for archiving. 2 refs., 6 figs

  17. Floating data acquisition system for microwave calorimeter measurements on MTX

    International Nuclear Information System (INIS)

    Sewall, N.R.; Meassick, S.

    1989-01-01

    A microwave calorimeter has been designed for making 140-GHz absorption measurements on the MTX. Measurement of the intensity and spatial distribution of the FEL-generated microwave beam on the inner wall will indicate the absorption characteristics of the plasma when heated with a 140 GHz FEL pulse. The calorimeter works by monitoring changes of temperature in silicon carbide tiles located on the inner wall of the tokamak. Thermistors are used to measure the temperature of each tile. The tiles are located inside the tokamak about 1 cm outside of the limiter radius at machine potential. The success of this measurement depends on our ability to float the data acquisition system near machine potential and isolate it from the rest of the vault ground system. Our data acquisition system has 48 channels of thermistor signal conditioning, a multiplexer and digitizer section, a serial data formatter, and a fiber-optic transmitter to send the data out. Additionally, we bring timing signals to the interface through optical fibers to tell it when to begin measurement, while maintaining isolation. The receiver is an HP 200 series computer with a serial data interface; the computer provides storage and local display for the shot temperature profile. Additionally, the computer provides temporary storage of the data until it can be passed to a shared resource management system for archiving. 2 refs., 6 figs

  18. TMX-U neutral pressure measurement diagnostic systems

    International Nuclear Information System (INIS)

    Pickles, W.L.; Allen, S.L.; Hill, D.N.; Hunt, A.L.; Simonen, T.C.

    1984-01-01

    The Tandem Mirror Experiment-Upgrade (TMX-U) has a large and complex system of Baird Alpert, magnetron, and Penning gauges, in addition to mass spectrometers (RGA), all of which measure neutral pressures in the many internal regions of TMX-U. These pressure measurements are used as part of the confinement physics data base as well as for management of the TMX-U vacuum system. Dynamic pressures are modeled by a coupled-volumes simulation code, which includes wall reflus, getter pumping, and plasma pumping

  19. A microprocessor based picture analysis system for automatic track measurements

    International Nuclear Information System (INIS)

    Heinrich, W.; Trakowski, W.; Beer, J.; Schucht, R.

    1982-01-01

    In the last few years picture analysis became a powerful technique for measurements of nuclear tracks in plastic detectors. For this purpose rather expensive commercial systems are available. Two inexpensive microprocessor based systems with different resolution were developed. The video pictures of particles seen through a microscope are digitized in real time and the picture analysis is done by software. The microscopes are equipped with stages driven by stepping motors, which are controlled by separate microprocessors. A PDP 11/03 supervises the operation of all microprocessors and stores the measured data on its mass storage devices. (author)

  20. Surface moisture measurement system hardware acceptance test report

    Energy Technology Data Exchange (ETDEWEB)

    Ritter, G.A., Westinghouse Hanford

    1996-05-28

    This document summarizes the results of the hardware acceptance test for the Surface Moisture Measurement System (SMMS). This test verified that the mechanical and electrical features of the SMMS functioned as designed and that the unit is ready for field service. The bulk of hardware testing was performed at the 306E Facility in the 300 Area and the Fuels and Materials Examination Facility in the 400 Area. The SMMS was developed primarily in support of Tank Waste Remediation System (TWRS) Safety Programs for moisture measurement in organic and ferrocyanide watch list tanks.