WorldWideScience

Sample records for important power constructions

  1. Construction of Harmonious Power Serves Harmonious Society

    Institute of Scientific and Technical Information of China (English)

    Wang Yeping

    2007-01-01

    @@ On November 23-24, 2006, the "Forum on Harmonious Power," famed as a meeting of mobilizing and pledging mass effort to construct harmonious power industry, was grandly held in Beijing. All big power bosses attended the Forum. Since separation of power plants from power grids, it was the first time that power industry appeared as a closely tightened group and earnestly declared and solemnly promised to construct harmonious power for the society. Mr.Wang Yeping, Vice-Chairman of the State Electricity Regulatory Commission, presented a keynote address on the Forum. Here is an abridgement of the address.

  2. Construct ability Improvement for Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Dae Soo; Lee, Jong Rim; Kim, Jong Ku [Korea Electric Power Research Institute, Taejon (Korea, Republic of)

    1997-12-31

    The purpose of this study was to identify methods for improving the construct ability of nuclear power plants. This study reviewed several references of current construction practices of domestic and overseas nuclear plants in order to identify potential methods for improving construct ability. The identified methods for improving construct ability were then evaluated based on the applicability to domestic nuclear plant construction. The selected methods are expected to reduce the construction period, improve the quality of construction, cost, safety, and productivity. Selection of which methods should be implemented will require further evaluation of construction modifications, design changes, contract revisions. Among construction methods studied, platform construction methods can be applied through construction sequence modification without significant design changes, and Over the Top construction method of the NSSS, automatic welding of RCL pipes, CLP modularization, etc., are considered to be applied after design modification and adjustment of material lead time. (author). 49 refs., figs., tabs.

  3. Attaching Importance to "Soft Power" Factor

    Institute of Scientific and Technical Information of China (English)

    Zhang Xiaoming

    2004-01-01

    @@ Generally Speaking, the importance of a state on the international arena largely depends on its power. Though it is difficult to make an assessment of the power of a country since analysts cannot do that job in an absolutely objective and exact way, it seems that very few people deny that the United States, today or even in the foreseeable future, will remain the strongest power or the only superpower in the world.

  4. Environmental Challenges to Thermal Power Construction

    Institute of Scientific and Technical Information of China (English)

    Zhu Fahua; Chu Xue

    2006-01-01

    Environmental protection challenges thermal power construction from respects of the reform of investment system, main industrial policies and plant site selection in China. Pollution control of thermal power plants is analyzed from the angles of increasingly stringent laws, regulations and standards as well as approval procedures of thermal power project. The paper points out emphatically that the plant site selection of a thermal power project must satisfy various requirements of rules and regulations, development programme and environmentall functions, etc. Different criteria of dust, SO2, Nox and other pollutants control are enumerated specially.

  5. Design and construction of nuclear power plants

    CERN Document Server

    Schnell, Jürgen; Meiswinkel, Rüdiger; Bergmeister, Konrad; Fingerloos, Frank; Wörner, Johann-Dietrich

    2013-01-01

    Despite all the efforts being put into expanding renewable energy sources, large-scale power stations will be essential as part of a reliable energy supply strategy for a longer period. Given that they are low on CO2 emissions, many countries are moving into or expanding nuclear energy to cover their baseload supply.Building structures required for nuclear installations whose protective function means they are classified as safety-related, have to meet particular construction requirements more stringent than those involved in conventional construction. This book gives a comprehensive overv

  6. Pricing Mechanism in Power Market Construction

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    The reform on electricity pricing mechanism is a critical problem in power market construction in China, and is in mutual supplementation and promotion with the latter. In particular, the pricing mechanism for electricity fed into network and that for electricity transmission and distribution as well as the relationship between coal and electricity prices, etc. Have to be studied in depth. This paper presents several solutions and suggestions to these problems.

  7. [Risk communication in construction of new nuclear power plant].

    Science.gov (United States)

    He, Gui-Zhen; Lü, Yong-Long

    2013-03-01

    Accompanied by construction of new nuclear power plants in the coming decades in China, risk management has become increasingly politicized and contentious. Nuclear risk communication is a critical component in helping individuals prepare for, respond to, and recover from nuclear power emergencies. It was discussed that awareness of trust and public attitudes are important determinants in nuclear power risk communication and management. However, there is limited knowledge about how to best communicate with at-risk populations around nuclear power plant in China. To bridge this gap, this study presented the attitudinal data from a field survey in under-building Haiyang nuclear power plant, Shandong Province to measure public support for and opposition to the local construction of nuclear power plant. The paper discussed the structure of the communication process from a descriptive point of view, recognizing the importance of trust and understanding the information openness. The results showed that decision-making on nuclear power was dominated by a closed "iron nuclear triangle" of national governmental agencies, state-owned nuclear enterprises and scientific experts. Public participation and public access to information on nuclear constructions and assessments have been marginal and media was a key information source. As information on nuclear power and related risks is very restricted in China, Chinese citizens (51%) tend to choose the government as the most trustworthy source. More respondents took the negative attitudes toward nuclear power plant construction around home. It drew on studies about risk communication to develop some guidelines for successful risk communication. The conclusions have vast implications for how we approach risk management in the future. The findings should be of interest to state and local emergency managers, community-based organizations, public health researchers, and policy makers.

  8. Structures and construction of nuclear power plants on lunar surface

    Science.gov (United States)

    Shimizu, Katsunori; Kobatake, Masuhiko; Ogawa, Sachio; Kanamori, Hiroshi; Okada, Yasuhiko; Mano, Hideyuki; Takagi, Kenji

    1991-07-01

    The best structure and construction techniques of nuclear power plants in the severe environments on the lunar surface are studied. Facility construction types (functional conditions such as stable structure, shield thickness, maintainability, safety distances, and service life), construction conditions (such as construction methods, construction equipment, number of personnel, time required for construction, external power supply, and required transportation) and construction feasibility (construction method, reactor transportation between the moon and the earth, ground excavation for installation, loading and unloading, transportation, and installation, filling up the ground, electric power supply of plant S (300 kW class) and plant L (3000 kW class)) are outlined. Items to pay attention to in construction are (1) automation and robotization of construction; (2) cost reduction by multi functional robots; and (3) methods of supplying power to robots. A precast concrete block manufacturing plant is also outlined.

  9. Delays in nuclear power plant construction. Volume II. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Mason, G.E.; Larew, R.E.; Borcherding, J.D.; Okes, S.R. Jr.; Rad, P.F.

    1977-12-14

    The report identifies barriers to shortening nuclear power plant construction schedules and recommends research efforts which should minimize or eliminate the identified barriers. The identified barriers include (1) Design and Construction Interfacing Problems; (2) Problems Relating to the Selection and Use of Permanent Materials and Construction Methods; (3) Construction Coordination and Communication Problems; and (4) Problems Associated with Manpower Availability and Productivity.

  10. Electrical part Temelin NPP - important electrical appliance power supply

    OpenAIRE

    Trnka, Radek

    2009-01-01

    Radek Trnka Department of Physics, Faculty of Education, University of South Bohemia Electrical part of Temelin Nuclear Power Station - Power supply of important electrical appliances The subject of this bachelor's work is an elaboration of problems of secured electric power supply for all important appliances in Temelin Nuclear Power Station (JE Temelin). There is an essential electrical conception of the nuclear power station described there, as well as possibilities of failure state emerge...

  11. Photovoltaic power - An important new energy option

    Science.gov (United States)

    Ferber, R. R.

    1983-01-01

    A review of photovoltaic (PV) power technology is presented with an emphasis of PV as an economical and technically feasible alternative source of energy. The successful completion of the development and transfer of emerging low-cost technologies into a fully commercialized status are identified as the means to the realization of this option's full potential. The DOE National Photovoltaics Program, a significant sponsor of PV R&D, expects both flat-plate and concentrator collectors to meet established cost targets. Citing the DOE large flat-plate grid-connected system project of the Sacramento Municipal Utility District, current technology modules priced at near $5/Wp (1983 dollars) are steadily reducing costs. A recent DOE study suggests that PV-generated electricity produced at a 30-year levelized cost of 15 cents per kWh would represent a viable energy supply alternative for the nation.

  12. Photovoltaic power - An important new energy option

    Science.gov (United States)

    Ferber, R. R.

    1983-12-01

    A review of photovoltaic (PV) power technology is presented with an emphasis of PV as an economical and technically feasible alternative source of energy. The successful completion of the development and transfer of emerging low-cost technologies into a fully commercialized status are identified as the means to the realization of this option's full potential. The DOE National Photovoltaics Program, a significant sponsor of PV R&D, expects both flat-plate and concentrator collectors to meet established cost targets. Citing the DOE large flat-plate grid-connected system project of the Sacramento Municipal Utility District, current technology modules priced at near $5/Wp (1983 dollars) are steadily reducing costs. A recent DOE study suggests that PV-generated electricity produced at a 30-year levelized cost of 15 cents per kWh would represent a viable energy supply alternative for the nation.

  13. Renewable energy power generation projects started construction in Tibet

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    On March 19, the construction of a 10-MW photovoltaic power plant and a 1 000-kW new type geothermal power generation project were started by Guodian Longyuan Group in Yanbajing Town, Dangxiong County of Tibet.

  14. The Importance of Safety in Construction Sector: Costs of Occupational Accidents in Construction Sites

    OpenAIRE

    Fatih Yılmaz; Uğur Buğra Çelebi

    2015-01-01

    Occupational accidents cause important social and economic problems by loss of life and physical injuries. Construction sector involves high risk due to its production processes and labor intensive characteristic and because of occupational accidents the sector brings up against financial loss in large scale. In developing countries, construction sector is one of the most important sectors that have a great contribution to economic development with its employment capacity and added-value t...

  15. Beyond Design: The Importance of Construction and Post-Construction Phases in Green Developments

    Directory of Open Access Journals (Sweden)

    Mark Hostetler

    2010-04-01

    Full Text Available Green developments are becoming a popular land use planning concept that attempts to accommodate growth while minimizing impacts on natural resources. Various policies encourage conservation designs that usually translate into the clustering of homes and the conservation of some percentage of open space. However, the success of a design is determined by what happens during the construction and post-construction phases of a subdivision project. These two phases are often ignored in land use planning and given only minimal attention by built environment professionals. As a result, green developments may not be functioning as originally intended. This essay discusses the importance of construction and post-construction and a way forward to create functional, sustainable communities. Construction activities and decisions, such as impacts from earthwork machines, improper protection of conserved open spaces and trees, the choice of plants used for yards and common areas, and the storage of construction material all can lead to severe impacts on natural areas both within and surrounding a development site. During post-construction, a variety of improper management practices by homeowners can compromise the sustainability of a development. Developers and associated environmental consultant teams could implement approaches that would engage contractors and residents, such as environmental construction covenants and the installment of a neighborhood, environmental education program. To increase the adoption of relevant construction and post-construction practices, appropriate policies need to be created. However, the shift will only occur once the planning and built environment community acknowledges that design is only the first step towards sustainability. Academic design studios and continuing education courses can help with this culture shift by including construction and post-construction considerations within their curriculum.

  16. Materials availability for fusion power plant construction

    Energy Technology Data Exchange (ETDEWEB)

    Hartley, J.N.; Erickson, L.E.; Engel, R.L.; Foley, T.J.

    1976-09-01

    A preliminary assessment was made of the estimated total U.S. material usage with and without fusion power plants as well as the U.S. and foreign reserves and resources, and U.S. production capacity. The potential environmental impacts of fusion power plant material procurement were also reviewed including land alteration and resultant chemical releases. To provide a general measure for the impact of material procurement for fusion reactors, land requirements were estimated for mining and disposing of waste from mining.

  17. The Importance of Safety in Construction Sector: Costs of Occupational Accidents in Construction Sites

    Directory of Open Access Journals (Sweden)

    Fatih Yılmaz

    2015-04-01

    Full Text Available Occupational accidents cause important social and economic problems by loss of life and physical injuries. Construction sector involves high risk due to its production processes and labor intensive characteristic and because of occupational accidents the sector brings up against financial loss in large scale. In developing countries, construction sector is one of the most important sectors that have a great contribution to economic development with its employment capacity and added-value to the economy. On the other hand, due to the lack of preventive measures, occupational accidents occur, frequently in construction in Turkey. Major occupational accidents are defined as the cause of serious injuries and a long-term disability; minor occupational accidents are defined as the cause of insignificant injuries and short-term disability. Minor occupational accidents are not considered sufficiently, they are even not kept as a record. It is known that minor occupational accidents, which are not considered sufficiently and even not registered, cause great financial loss in workplaces. The aim of this paper is to investigate the cost of workforce loss caused by the accidents in construction sites by using the statistics of three construction sites in Turkey and to compare the financial losses of minor and major occupational accidents. In this study, three construction project are investigated in Turkey in 2009 and it is obtained that the cost of workday loss caused by major occupational accidents is 19431.75 $ and minor occupational accidents cause a loss of 6924.25 $. The cost of workday loss caused by minor occupational accidents are almost 35 % of major workday losses’. These costs presents the importance of preventive measures for workers’ health and safety in construction.

  18. The atmospheric corrosion, important technical and economic factor in the construction of nuclear power plants; La corrosion atmosferica, factor de importancia tecnico-economica en la construccion de centrales electronucleares (CEN)

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez, R. [Agencia de Energia Nuclear, La Habana (Cuba); Diaz, J.; Gomez, J. [Centro de Investigaciones Quimicas (Cuba); Rodriguez, J. [MINBAS (Cuba). Direccion de Centrales Nucleares; Galeano, N. [ECM-10 (Cuba)

    1995-12-31

    In order to determine the atmospheric effects of the construction of the Juragua NPP some experiments were performed in the reactor site. Samples of carbon steel were placed in experimental stations and the consequent oxidation was measured. The results show that the region`s atmosphere aggressiveness may be classified from low to median. 11 refs.

  19. Architectural aspects in power plant construction

    Energy Technology Data Exchange (ETDEWEB)

    Schoenfelder, K.H.

    1984-01-01

    Environmental considerations increasingly force the architects to carefully balance all requirements involved when planning power stations. For instance, an approach considering purely technical requirements would frequently spoil the landscape. On the basis of the vast experience gained, our architects are in a position to offer or develop solutions which take account of all aspects involved.

  20. Construction and assembling optimization of power equipment

    Directory of Open Access Journals (Sweden)

    Marius Groza

    2005-10-01

    Full Text Available The main purpose of this paper is to elaborate a calculation program in Pascal language, using Delphi environment. This calculation program is designed to solve the power engineering optimization problems using the critical path method. For illustrating the use of the algorithm and the calculation program we propose an application from power engineering: a 400 kV electrical overhead line section realization. This paper is structured in 4 parts. In the first part of the paper we present the application as a problem of critic path. In the second part of the paper, we determine the critic path in a program graph and time reserves. In the third part of the paper we present a representative numerical application. In the fourth part of the paper it is described the calculation program.

  1. Construction prospects of new power units at Khmelnitskij NPP site

    Energy Technology Data Exchange (ETDEWEB)

    Zenyuk, Denys [NNEGC ' Energoatom' , 01032 Vetrova, 3, Kiev (Ukraine)

    2008-07-01

    According to the Energy Strategy of Ukraine for a period up to 2030 it is planned to put into operation power units 3 and 4 of Khmelnitskij NPP by year 2016. In this work considerations are presented on the possible options while selecting reactor unit type for Khmelnitskij NPP power units 3 and 4, which is the main determinant of the cost, construction and commissioning time, and utilization of the existent civil structures. To optimize Khmelnitskij-3 and 4 construction, a survey of the data has been conducted with regard to the possibility of construction of new power units of PWR/VVER type at Khmelnitskij NPP site. The multivariable analysis has been performed based on the projects technical and cost data, construction time and conditions, as well as their compliance with the IAEA and EUR safety requirements for new power units. (author)

  2. Privatisation electric power sector in Pakistan: some important issues

    Energy Technology Data Exchange (ETDEWEB)

    Ghafoor, A.; Weiss, J.

    1998-06-01

    This discussion paper highlights important issues relating to the privatisation of Pakistan's electric power sector. Salient features of the electric power sector in Pakistan, factors affecting the economic performance of this sector, the partial privatisation policy adopted by Pakistan, ongoing private power projects, and current privatisation policy are examined. The arguments for competition are raised, and alternative policy reforms the are considered.

  3. Power/Knowledge: The Discursive Construction of an Author

    Science.gov (United States)

    Olsson, Michael

    2007-01-01

    This article reports the findings of a study examining the social/discursive construction of an author (Brenda Dervin) by an international community of researchers (information behavior researchers). A crucial conceptual starting point for the study was Michel Foucault's work on the discursive construction of power/knowledge. The study represents…

  4. Power/Knowledge: The Discursive Construction of an Author

    Science.gov (United States)

    Olsson, Michael

    2007-01-01

    This article reports the findings of a study examining the social/discursive construction of an author (Brenda Dervin) by an international community of researchers (information behavior researchers). A crucial conceptual starting point for the study was Michel Foucault's work on the discursive construction of power/knowledge. The study represents…

  5. Power Sources Planning,Construction and Operation

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    @@The year 2000 was a year when China's national economical and social development witnessed tremendous achievements, and China's electric power industry successfully realized the objectives set at the beginning of the year 2000. In 2000, the nationwide electricity generation fulfilled 1368.5 TWh, an increase of 10.975% on the basis of yearon-year; the newly commissioned generating capacity reached 20,553 MW. With annual newly commissioned generating capacity exceeding 10,000 MW consecutively for thirteen years, the nationwide total installed generating capacity hit 319,320.9 MW by the end of 2000, striding onto the new step of 300,000 MW. The nationwide total installed generating capacity and electricity generation and their mixes in 2000 are listed in Table 1.

  6. Power relations and reciprocity: dialectics of knowledge construction.

    Science.gov (United States)

    Ben-Ari, Adital; Enosh, Guy

    2013-03-01

    In this article we suggest a theoretical framework of knowledge construction by employing the concept of dialectics to power relationships between researcher and participants. Power distribution in research is perceived as dichotomous and asymmetrical in favor of the researcher, creating unequal power relations that make exploitation possible. Acknowledging such exploitation has led to a critical stance and attempts to bridge gaps through egalitarianism and empowerment of participants. Some scholars have focused on shifting expert knowledge differentials between researcher and participants throughout the research project. Others have evaluated such gaps as a source of knowledge construction. In the present work we applied a dialectical approach to understanding research relationships, suggesting reciprocity as their defining attribute, regardless of symmetry or asymmetry and as a source of knowledge construction. In this article we recommend avoiding a taken-for-granted attitude, because we see it as a direct obstacle to the construction of knowledge.

  7. Construction, Maintenance and Demolition of Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Smet, Camiel de [Hilti Corporation, P.O. Box 333, FL-9494 Schaan (Liechtenstein)

    2008-07-01

    Hilti is your reliable partner in nuclear power plant construction, maintenance and demolition worldwide. Professional advice and innovative solutions for virtually every phase of construction and supply technologically leading products and systems to increase your productivity and help to create and maintain safe and lasting plants is offered. The solutions for nuclear power plants construction, maintenance and demolition have been employed with great success in many different countries on a wide variety of projects due in no small way to their worldwide availability. An unbroken, international exchange of experience upholds a permanent innovation process. This assures our customers that they always receive products on the very latest technological standard. This paper is not intended to cover all topics related to nuclear power plants. The idea is more to give a kind of an overview. The paper covers briefly the following topics: safety (corrosion and fire), fastenings, measuring and finally decommissioning of nuclear power plants. (author)

  8. Power Grid Construction Project Portfolio Optimization Based on Bi-level programming model

    Science.gov (United States)

    Zhao, Erdong; Li, Shangqi

    2017-08-01

    As the main body of power grid operation, county-level power supply enterprises undertake an important emission to guarantee the security of power grid operation and safeguard social power using order. The optimization of grid construction projects has been a key issue of power supply capacity and service level of grid enterprises. According to the actual situation of power grid construction project optimization of county-level power enterprises, on the basis of qualitative analysis of the projects, this paper builds a Bi-level programming model based on quantitative analysis. The upper layer of the model is the target restriction of the optimal portfolio; the lower layer of the model is enterprises’ financial restrictions on the size of the enterprise project portfolio. Finally, using a real example to illustrate operation proceeding and the optimization result of the model. Through qualitative analysis and quantitative analysis, the bi-level programming model improves the accuracy and normative standardization of power grid enterprises projects.

  9. Problems and prospects of nuclear power plants construction

    Directory of Open Access Journals (Sweden)

    Pergamenshhik Boris Klimentyevich

    2014-02-01

    Full Text Available 60 years ago, in July 1954 in the city of Obninsk near Moscow the world's first nuclear power plant was commissioned with a capacity of 5 MW. Today more than 430 nuclear units with a total capacity of almost 375000 MW are in operation in dozens of the countries worldwide. 72 electrical power units are currently under construction, 8 of them are located in the Russian Federation. There will be no alternative to nuclear energy in the coming decades. Among the factors contributing to the construction of nuclear power plants reckon limited fossil fuel supply, lack of air and primarily carbon dioxide emissions. The holding back factors are breakdown, hazard, radioactive wastes, high construction costs and long construction period. Nuclear accidents in the power plant of «Three-Mile-Island» in the USA, in Chernobyl and in Japan have resulted in termination of construction projects and closure of several nuclear power plants in the Western Europe. The safety systems have become more complex, material consumption and construction costs have significantly increased. The success of modern competing projects like EPR-1600, AP1000, ABWR, national ones AES-2006 and VVER-TOI, as well as several others, depends not only on structural and configuration but also on construction and technological solutions. The increase of the construction term by one year leads to growth of estimated total costs by 3—10 %. The main improvement potentials include external plate reinforcement, pre-fabricated large-block assembly, production and installation of the equipment packages and other. One of the crucial success factors is highly skilled civil engineers training.

  10. Wind Power Plants Fundamentals, Design, Construction and Operation

    CERN Document Server

    Twele, Jochen

    2012-01-01

    Wind power plants teaches the physical foundations of usage of Wind Power. It includes the areas like Construction of Wind Power Plants, Design, Development of Production Series, Control, and discusses the dynamic forces acting on the systems as well as the power conversion and its connection to the distribution system. The book is written for graduate students, practitioners and inquisitive readers of any kind. It is based on lectures held at several universities. Its German version it already is the standard text book for courses on Wind Energy Engineering but serves also as reference for practising engineers.

  11. Design and Construction of Low Cost High Voltage dc Power Supply for Constant Power Operation

    Science.gov (United States)

    Kumar, N. S.; Jayasankar, V.

    2013-06-01

    Pulsed load applications like laser based systems need high voltage dc power supplies with better regulation characteristics. This paper presents the design, construction and testing of dc power supply with 1 kV output at 300 W power level. The designed converter has half bridge switched mode power supply (SMPS) configuration with 20 kHz switching. The paper covers the design of half bridge inverter, closed loop control, High frequency transformer and other related electronics. The designed power supply incorporates a low cost OPAMP based feedback controller which is designed using small signal modelling of the converter. The designed converter was constructed and found to work satisfactorily as per the specifications.

  12. Speed Up Construction of Robust National Power Grid,Promote Sustainable Energy Development in China

    Institute of Scientific and Technical Information of China (English)

    Liu Zhenya; Jin Wen

    2006-01-01

    @@ Promotion of the power industry is an important part of the strategy of the national energy development. Power is an important link in the chain of energy industry. Considering the requirements of sustainable energy development in China, to accelerate the construction of a nationad power grid based on ultra-high voltage trunks and coordimtely devcloped power grids at all levels may solve the vital problems being faced in energy development. It is also significant for crcating a system of stable, cconomie, clean and safe energy supply.

  13. Construction of 1100 MW power plants. Challenges for the next generation of plant construction teams

    Energy Technology Data Exchange (ETDEWEB)

    Droste, Rob [E.ON Engineering GmbH, Rotterdam (Netherlands); Maas, Thomas [E.ON Kraftwerke GmbH, Hannover (Germany)

    2010-07-01

    Replacement projects have started in Europe in order to modernise the whole power production fleet. The challenges most projects face, are related to providing the specified quality and to complying with current legislation. The mandatory essential safety requirements should be implemented during the design phase and proper follow-up during procurement and construction of the power plant should be ensured. Total Quality Management has been implemented at the projects of E.ON Kraftwerke using risk management and continuous improvement methodologies. (orig.)

  14. EVMS for nuclear power plant construction: status and implementation

    Energy Technology Data Exchange (ETDEWEB)

    Roh, M. S.; Kwak, J. K.; Park, S. Y. [KEPCO International Nuclear Graduate School, Ulsan (Korea, Republic of)

    2012-10-15

    The Earned Value Management System (EVMS) method integrates three critical elements of project management scope, cost and time management. It requires the periodic monitoring of actual expenditures and physical scope accomplishments and allows calculation of cost and schedule variances along with performance indices. It allows for casting of project cost and schedule at completion and highlights the possible need for corrective action. It is anticipated that there will be intense competition in the nuclear industry as the cost and time for nuclear power plant construction. In order to attain competitive advantages, utilizing advanced project control systems by integrating cost and time management is of great concern for practitioners. This paper is to review the status of EVMS and its effective implementation to nuclear power plant construction.

  15. Risk factors during construction of power plants using renewable energy sources

    Directory of Open Access Journals (Sweden)

    Nefedova Lyudmila Veniaminovna

    2016-12-01

    Full Text Available The authors consider main characteristics of modern development of renewable energy sources (RES. It is dedicated that there are some technical and economic barriers to the widespread use of renewable energy. For example, RES are inconstancy in time and space and have low density of energy flow. High capital intensity and cost price, long-term construction, a considerable degree of different kinds of risk, lack of competitiveness with hydrocarbon species generation in the existing regulatory environment are also inherent to RES. The role of the regulatory framework is shown according to perspective plans of construction of power plants using renewable energy sources. The main requirements which are applied to measures of state support of construction industry of renewable energy development are formulated. Current condition of construction industry of RES in Russia is assessed. The problems of risks which arise during construction of renewable energy facilities according to results of practical use of RES are discussed. And it is rather important to use stage assessment for the construction phase of the project during risk analysis of construction of alternative energy sources. The main groups of RES risks are described. The importance of regulatory and resource risks for effective development of renewable energy in Russia according to the method of strategic planning with the identification of the adverse effects of gradation factors are determined. The analysis of financial risks types and methods of its management during construction power generation projects based on different types of renewable energy resources are made. In the end of the article the authors make a conclusion, that the development of projects for the construction of power plants with the use of innovative technical solutions to ensure minimal risks to the environment and safe operation in various climatic conditions is a priority.

  16. Some solutions in the construction problems of high power electromagnets

    Energy Technology Data Exchange (ETDEWEB)

    Trojnar, K.; Borkowski, A. (International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw (Poland))

    1984-01-01

    The paper includes some constructional propositions which arose while designing 10 MW Bitter-type magnet. The discussion on how to reduce mechanical stresses within the internal coil through its appropriate division causing no change of pre-assumed current distribution is also provided. Moreover, the paper deals with application of common means for feeding electric current and cooling water which make the electromagnet design considerably simplified and cause the electric energy losses at power connections to be lower due to the relatively large cooling surface.

  17. Mechanisms of the Stimulation of Import Substitution in the Construction Industry

    Directory of Open Access Journals (Sweden)

    Svetlana Nikolayevna Kotlyarova

    2016-12-01

    Full Text Available The issues of the dependence on imports and import substitution are the major factors in the development of the domestic economy. The subject matter of the research is the dependence of construction industry on imports in the area of foreign technology, it is aimed at identifying the scope of the problem and justifying the mechanisms to overcome it. The article substantiates the relevance and importance of import substitution in the production of construction materials and equipment. Import substitution in the construction industry can be implemented in two main ways, requiring different approaches in supporting and encouraging. Firstly, there is the substitution of products used in construction, aimed at minimizing the risk of disruption of the supply of imported products for construction purposes and the predominant use of domestic analogues of imported products for construction purposes. Secondly, there is the substitution in the technologies of production of goods used in construction, focused on stimulating the development of the domestic production of competitive products and technological and managerial modernization of the construction materials industry, construction industry. The process of import substitution in the construction industry have a number of limitations. In this connection, the article discusses the opportunities and constraints for import substitution. A special attention is paid to the practice of the formation of regional construction clusters as a tool of implementing the policy of import substitution. The purposes and principles of the development of clusters, sources of initiatives, used systems of transfer and knowledge and innovations are considered critically. The conclusion is made about the need for the strategic development of new products for the construction market and domestic research and development projects within the framework of cross-sectoral clusters. The basic forms of state support required for the

  18. On Deng Xiaoping's important contribution to the construction of socialist economic system with Chinese characteristics

    Institute of Scientific and Technical Information of China (English)

    WANG Kai

    2016-01-01

    Deng Xiaoping is the founder of the theory of socialism with Chinese characteristics, and made important contributions to the construction of the system. Among them, his theoretical achievements and practical exploration of the economic system construction had played an important role in the formation of the socialist system with Chinese characteristics.

  19. Construction of two 1000-MW units launched in Laizhou Power Plant

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    On March 10, the f irst construction phase of Huadian International Laizhou Power Plant with two 1 000-MW class generating units was formally started. This power plant is a key power source project of Shandong Province

  20. Design And Construction Of 300W Audio Power Amplifier For Classroom

    Directory of Open Access Journals (Sweden)

    Shune Lei Aung

    2015-07-01

    Full Text Available Abstract This paper describes the design and construction of 300W audio power amplifier for classroom. In the construction of this amplifier microphone preamplifier tone preamplifier equalizer line amplifier output power amplifier and sound level indicator are included. The output power amplifier is designed as O.C.L system and constructed by using Class B among many types of amplifier classes. There are two types in O.C.L system quasi system and complementary system. Between them the complementary system is used in the construction of 300W audio power amplifier. The Multisim software is utilized for the construction of audio power amplifier.

  1. Normative Power Europe and the Importance of the Discursive Context

    DEFF Research Database (Denmark)

    Larsen, Henrik

    2014-01-01

    normative power in this area. The article examines the politics of religion by looking at the case of the debate about human rights versus religion in the United Nations Human Rights Council after the year 2000. The broader point addressed in the article is whether the EU can exert normative power...

  2. Nuclear Power Important for China’s Future

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Will China change its nuclear power development goal after the nuclear crisis in Japan? Yu Zhouping, former Head othe Chinese Delegation to the International Atomic Energy Agency (IAEA),and Tian jiashu, Director of the Nuclea Safety Center under the Ministry of Environmental Protection believe thatChina’s nuclear power

  3. Construction of Fractional Power Series Solutions to Fractional Boussinesq Equations Using Residual Power Series Method

    Directory of Open Access Journals (Sweden)

    Fei Xu

    2016-01-01

    Full Text Available This paper is aimed at constructing fractional power series (FPS solutions of time-space fractional Boussinesq equations using residual power series method (RPSM. Firstly we generalize the idea of RPSM to solve any-order time-space fractional differential equations in high-dimensional space with initial value problems in Rn. Using RPSM, we can obtain FPS solutions of fourth-, sixth-, and 2nth-order time-space fractional Boussinesq equations in R and fourth-order time-space fractional Boussinesq equations in R2 and Rn. Finally, by numerical experiments, it is shown that RPSM is a simple, effective, and powerful method for seeking approximate analytic solutions of fractional differential equations.

  4. A Study on Nonconformance and Construction Method Improvement for Nuclear Power Plant

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jong Yeob; Roh, Myung Sub [KEPCO International Nuclear Graduate School, Ulsan (Korea, Republic of)

    2014-10-15

    Advanced power reactor was developed by domestic technology, and finally exported to abroad. In order to place the current nuclear power industrial base, construction has played a big role. Without magnificent construction technology, it would have been impossible to get a safe nuclear power plant on time and in budget. Construction industry occupies very large portion of the economy in South Korea and it has been a core of South Korea's economic growth. With a competitive construction industry and advanced nuclear power plant construction know-how, South Korea could provide safe and reliable nuclear power plants in domestic and world. However there are many repairs and number of corrective actions are in actual construction. Thus, this paper suggested the result of nonconformance and construction method improvement for nuclear power plant. Constructional engineering is a kind of science that has a variety of disciplines including structure, geology, mechanical equipment and other fields. Thus, the development of constructional engineering is closely associated with experience from failure and application advanced construction method. The recent experience in nuclear power plants construction has shown that those improved methods are fully applicable and can help shorten the construction schedule. The future of nuclear power plant construction seems to be more encouraged, even though it has many obstacles.

  5. Construction of an experimental plot seeder of wheat planting and compare it by imported one

    Directory of Open Access Journals (Sweden)

    I Eskandari

    2016-09-01

    spinner can be equipped with a 4 or 6 outlet delivery head, depending on row spacing. The planter is fitted with hoe openers. Alternatively, spear-point openers have sometimes been used under conventional tillage systems. Seeding depth control was achieved by an adjustment screw handle. The plot seeder is being moved by a 9.6 kW engine, and has been successfully used in applications. Field experiment established by using 4 plot length (2, 3, 4 and 6 with 4 replication by the constructed plot seeder and imported plot seeder. Crop measurements were planted height, spike m-2, seeds/spike, Thousand kernel weight, Biological and grain yield, harvest index and drill measurements were seeding depth, uniformity of row spacing in action, seed counter performance, power requirement, slippage evenly of rows after planting. Results and Discussion Results showed that there were significant differences between the plant emergences. The emergencies were higher in plots, which planted by the new plot seeder. The differences between seed distribution of openers were insignificant, but the variances of new plot seeder and imported plot seeder were 0.267 and 1.05 respectively. Mean planting depth of plots planted by the Wintersteiger plot seeder was 0.8 cm shallower than the adjusted planting depth while mean planting depth in plots planted by constructing machine had only 0.01 cm variation. Results of variance analysis revealed that effect of treatments on wheat grain yield and yield components was significant. So that, highest grain yield (4216 kgha-1, biological yield (8704 kgha-1, number of spikes per square meter (649spike, obtained from a plot which planted by constructed plot seeder. Increasing yield of treatments which planted by constructed plot seeder might be because of increasing the number of spikes per square meter in those treatments. The mean of spike per square meter in plots of new planter was 691 spikes which were116 spike more than plots planted by imported plot seeder

  6. Construction of an experimental plot seeder of wheat planting and compare it by imported one

    Directory of Open Access Journals (Sweden)

    I Eskandari

    2016-09-01

    spinner can be equipped with a 4 or 6 outlet delivery head, depending on row spacing. The planter is fitted with hoe openers. Alternatively, spear-point openers have sometimes been used under conventional tillage systems. Seeding depth control was achieved by an adjustment screw handle. The plot seeder is being moved by a 9.6 kW engine, and has been successfully used in applications. Field experiment established by using 4 plot length (2, 3, 4 and 6 with 4 replication by the constructed plot seeder and imported plot seeder. Crop measurements were planted height, spike m-2, seeds/spike, Thousand kernel weight, Biological and grain yield, harvest index and drill measurements were seeding depth, uniformity of row spacing in action, seed counter performance, power requirement, slippage evenly of rows after planting. Results and Discussion Results showed that there were significant differences between the plant emergences. The emergencies were higher in plots, which planted by the new plot seeder. The differences between seed distribution of openers were insignificant, but the variances of new plot seeder and imported plot seeder were 0.267 and 1.05 respectively. Mean planting depth of plots planted by the Wintersteiger plot seeder was 0.8 cm shallower than the adjusted planting depth while mean planting depth in plots planted by constructing machine had only 0.01 cm variation. Results of variance analysis revealed that effect of treatments on wheat grain yield and yield components was significant. So that, highest grain yield (4216 kgha-1, biological yield (8704 kgha-1, number of spikes per square meter (649spike, obtained from a plot which planted by constructed plot seeder. Increasing yield of treatments which planted by constructed plot seeder might be because of increasing the number of spikes per square meter in those treatments. The mean of spike per square meter in plots of new planter was 691 spikes which were116 spike more than plots planted by imported plot seeder

  7. Design and Construction of a Passive Solar Power Clothing Dryer

    Directory of Open Access Journals (Sweden)

    Ali Alahmer

    2014-04-01

    Full Text Available This manuscript presents the design and construction of the energy efficient, time saving, cost effective of passive solar powered clothes dryer. This manuscript begins with a derivation of mathematical model represents of solar dryer followed with an analysis of the elements necessary for successfully designing the various components of a solar dryer. The solar drying performance achieved an average drying rate of 0.35 kg/h and drying time of 3 h in a typical day, even under local low ambient humidity of around 35% and at moderate outdoor wind speed. Also, the computational fluid dynamic CFD of transient thermal behavior based on Navier-Stokes equations was used to demonstrate the prevailing temperature rises in the solar natural-ventilation system associated with the internal heat flux due to solar radiation and moisture removal. The efficiency of solar dryer was improved using Nano coating technology. The result showed good agreement between the computational solid simulation and the experimental measurements obtained from this system.

  8. The importance of building construction materials relative to other factors affecting structure survival during wildfire

    Science.gov (United States)

    Syphard, Alexandra D.; Brennan, Teresa J.; Keeley, Jon E.

    2017-01-01

    Structure loss to wildfire is a serious problem in wildland-urban interface areas across the world. Laboratory experiments suggest that fire-resistant building construction and design could be important for reducing structure destruction, but these need to be evaluated under real wildfire conditions, especially relative to other factors. Using empirical data from destroyed and surviving structures from large wildfires in southern California, we evaluated the relative importance of building construction and structure age compared to other local and landscape-scale variables associated with structure survival. The local-scale analysis showed that window preparation was especially important but, in general, creating defensible space adjacent to the home was as important as building construction. At the landscape scale, structure density and structure age were the two most important factors affecting structure survival, but there was a significant interaction between them. That is, young structure age was most important in higher-density areas where structure survival overall was more likely. On the other hand, newer-construction structures were less likely to survive wildfires at lower density. Here, appropriate defensible space near the structure and accessibility to major roads were important factors. In conclusion, community safety is a multivariate problem that will require a comprehensive solution involving land use planning, fire-safe construction, and property maintenance.

  9. 7 CFR 1710.252 - Construction work plans-power supply borrowers.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 11 2010-01-01 2010-01-01 false Construction work plans-power supply borrowers. 1710... LOANS AND GUARANTEES Construction Work Plans and Related Studies § 1710.252 Construction work plans..., environmental and other studies and plans needed to support the construction of facilities, when such cost...

  10. Delays in nuclear power plant construction. Progress report, September 15, 1976--September 14, 1977

    Energy Technology Data Exchange (ETDEWEB)

    Mason, G.E.; Larew, R.E.

    1977-08-10

    This report identifies barriers to shortening nuclear power plant construction schedules and recommends research efforts that should minimize or eliminate the identified barriers. The identified barriers include: (1) design and construction interfacing problems; (2) problems relating to the selection and use of permanent materials and construction methods; (3) construction coordination and communication problems; and (4) problems associated with manpower availability and productivity;

  11. Nuclear Power Plant Construction Scheduling Problem with Time Restrictions: A Particle Swarm Optimization Approach

    Directory of Open Access Journals (Sweden)

    Shang-Kuan Chen

    2016-01-01

    Full Text Available In nuclear power plant construction scheduling, a project is generally defined by its dependent preparation time, the time required for construction, and its reactor installation time. The issues of multiple construction teams and multiple reactor installation teams are considered. In this paper, a hierarchical particle swarm optimization algorithm is proposed to solve the nuclear power plant construction scheduling problem and minimize the occurrence of projects failing to achieve deliverables within applicable due times and deadlines.

  12. Construction of APR1000 nuclear power information management system based on international standards

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Seung Hwan [Korea Electric Power Research Institute, Daejeon (Korea, Republic of); Song, Deok Yong; Han, Byung Sub [Enesys Co., Daejeon (Korea, Republic of); An, Kyung Ik; Hwang, Jin Sang [PartDB Co., Daejeon (Korea, Republic of)

    2010-10-15

    In recent years, due to speedy rise of international oil prices, orders of nuclear power plant construction have been in progress by many countries to solve the stable supply of power. Our country has continued to perform nuclear power construction. As only a few developed countries like Japan and European countries have its own nuclear power construction technology, competition among them is keen. Our country has awarded the contract of UAE nuclear power plants based on the accumulated nuclear power plant construction technologies so far. In this regard, KEPCO has recognized the needs of information management system to manage nuclear power information and proceeded the implementation of nuclear power information management system for export-model

  13. Classroom Test Construction: The Power of a Table of Specifications

    Directory of Open Access Journals (Sweden)

    Helenrose Fives

    2013-02-01

    Full Text Available Classroom tests provide teachers with essential information used to make decisions about instruction and student grades. A table of specification (TOS can be used to help teachers frame the decision making process of test construction and improve the validity of teachers' evaluations based on tests constructed for classroom use. In this article we explain the purpose of a TOS and how to use it to help construct classroom tests.

  14. Importance Level of Construction Managers’ Technical Competency Across Different Contractors’ Demographics in Malaysia

    Directory of Open Access Journals (Sweden)

    Mohammad Hairuddin

    2017-01-01

    Full Text Available It is undeniable that construction managers play a significant role within construction phase, especially when they are representing construction contractor, one of the key stakeholders within construction project’s realm. Reliance towards their technical competency is very much needed for a successfulness of a construction project. Unfortunately, a lot of recurring issues pertaining to their technical incompetency are shrouding the industry. Non-existence of term of reference for construction manager’s technical competency profile is dictated as a major setback. Thus, a dedicated and comprehensive research exploration is conducted in order to bridge the gap through establishment of particular competency. Hence, in this instalment, the authors postulated a question of ‘how?’ which pillars on items’ importance level and correlation among different contractors’ demographics. Initially, data screening processes over outliers test, reliability test, and normality test were conducted. After that, the importance of technical competency for construction manager was analysed based on their central tendency (i.e. means. Finally, Spearman correlation analysis is directed towards observed ranks from diverse contractors’ demographics. In a nutshell, data was free from any extreme outlier and reported high reliability value. However, data was measured as non-normal in nature. Meanwhile, through means, majority of macro items (16 items were in a range of important (4.00 to very important (5.00. Towards the end, findings for Spearman correlation analysis were mostly leaning towards moderate and strong association’s strength across different clusters of diverse contractors’ demographics. Nevertheless, there were evidences that major variability of findings for both tests is exhibited through contractors’ grades. Therefore, succeeding in-depth quantitative analysis is paramount in order to pin-point significant values onto each individual

  15. The Local Construction of the Asymmetrical Power Relationship in Teamwork among Engineers

    Science.gov (United States)

    Vickers, Caroline H.

    2010-01-01

    The purpose of this article is to examine local, interactional processes associated with the construction of power asymmetries in collaborative teamwork among engineering students. To explore the construction of power asymmetries at the micro-interactional level, this article examines a corpus consisting of about 150,000 words in which seven teams…

  16. Power supply for the Spanish stellarator TJ-II, design, construction, and tests

    Energy Technology Data Exchange (ETDEWEB)

    Perez, A.; Lucia, C.; Alberdi, B.; Del Rio, J.M. [JEMA SA, Lasarte-Oria (Spain); Almoguera, L.; Blaumoser, M.; Kirpitchev, I.; Mendez, P. [Asociacion EURATOM-CIEMAT para Fusion, Madrid (Spain)

    1995-12-31

    Most of the components of the electrical power supply system of the new TJ-II stellarator, which is under construction in Madrid (Spain), are now constructed and tested. The flywheel synchronous generator is still under construction and its tests are planned for the end of 1995. The power plant is described in detail as well as the tests which have been carried out and their results.

  17. Constructing Cultures of Non-Violence: The Peace Power! Strategy.

    Science.gov (United States)

    Mattaini, Mark A.; Addams, Jane

    2001-01-01

    This article presents an alternative approach for reducing violence in schools: the development of evidence-based tools that can be used in existing networks to structure systemic changes. The PEACE POWER strategy emphasizes four practices: recognize contributions and successes, act with respect, share power to build community, and make peace.…

  18. China's First Orimulsion-Fueled Power Plant Constructed in Zhanjiang

    Institute of Scientific and Technical Information of China (English)

    Xing Jianxiao

    2003-01-01

    @@ A ceremony commencement of Orimulsion-fueled electric power generation project was held in Zhanjiang City,Guangdong Province, on November 26. Vice Governor of Guangdong Province You Ningfeng, Vice President of PetroChina and other officials from the related departments attended the foundation-laying ceremony for the power plant.

  19. Constructing Cultures of Non-Violence: The Peace Power! Strategy.

    Science.gov (United States)

    Mattaini, Mark A.; Addams, Jane

    2001-01-01

    This article presents an alternative approach for reducing violence in schools: the development of evidence-based tools that can be used in existing networks to structure systemic changes. The PEACE POWER strategy emphasizes four practices: recognize contributions and successes, act with respect, share power to build community, and make peace.…

  20. ZF cPower – Hydrostatic-Mechanical Powersplit Transmission for Construction and Forest Machinery

    OpenAIRE

    Legner, Jürgen; Rebholz, Wolfgang; Morrison, Robert

    2016-01-01

    Until recently, hydrostatic-mechanical power split CVT drivelines have not found a place in construction machinery. The majority of these vehicles still use hydrodynamic powershift transmissions, full-hydrostatic transmissions or mechanical direct-shift transmissions. Hydrostatic drive lines are widely used in construction machinery possessing lower engine power. The upper power range is dominated by hydrodynamic powershift transmissions. Decisions made by vehicle manufacturers about which dr...

  1. The Wind Energy in Power Production and Its Importance in Geography Teaching

    Science.gov (United States)

    Munkacsy, Bela

    2005-01-01

    Wind energy is an increasingly important factor of the power system in Europe. But it is still just a small part of the significant changes of the new millennium, namely the spreading of micro power and decentralisation of the whole energy system which are very important elements of sustainability. This paper shows the importance of wind power…

  2. Facilitating Constructive Alignment in Power Systems Engineering Education Using Free and Open-Source Software

    Science.gov (United States)

    Vanfretti, L.; Milano, F.

    2012-01-01

    This paper describes how the use of free and open-source software (FOSS) can facilitate the application of constructive alignment theory in power systems engineering education by enabling the deep learning approach in power system analysis courses. With this aim, this paper describes the authors' approach in using the Power System Analysis Toolbox…

  3. Facilitating Constructive Alignment in Power Systems Engineering Education Using Free and Open-Source Software

    Science.gov (United States)

    Vanfretti, L.; Milano, F.

    2012-01-01

    This paper describes how the use of free and open-source software (FOSS) can facilitate the application of constructive alignment theory in power systems engineering education by enabling the deep learning approach in power system analysis courses. With this aim, this paper describes the authors' approach in using the Power System Analysis Toolbox…

  4. Risks and challenges associated with the design and construction of a nuclear power plant; Control de riesgos y retos asociados al diseno y construccion de una central nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Liebana Martinez, B.; Armas Garcia, A.; Martinez Gozalo, I.

    2011-07-01

    The construction of a nuclear power plant project, considering the period prior to the operation of the plant, requires a very strict risk control to ensure compliance with a series of challenges. The present paper identifying the most important challenges facing the construct ability and license requirements of the process, identifying the interfaces and proposing a methodology of construction to meet the challenge of a construction process in 5 years.

  5. Social Construction of Skill: Gender, Power, and Comparable Worth.

    Science.gov (United States)

    Steinberg, Ronnie J.

    1990-01-01

    Pressures that contribute to conventional definitions of skill are uncovered through identification of sources of gender bias in job evaluation systems. Pay equity initiatives are examined to highlight process by which new definitions of skill are constructed or blocked. Demonstrates that comparable worth research can engender understanding of…

  6. SOME SOLUTIONS IN THE CONSTRUCTION PROBLEMS OF HIGH POWER ELECTROMAGNETS

    OpenAIRE

    Trojnar, K.; Borkowski, A

    1984-01-01

    The paper includes some constructional propositions which arose while designing 10 MW Bitter-type magnet. The discussion on how to reduce mechanical stresses within the internal coil through its appropriate division causing no change of pre-assumed current distribution is also provided. Moreover, the paper deals with application of common means for feeding electric current and cooling water which make the electromagnet design considerable simplified and cause the electric energy losses at pow...

  7. Migration and Residential Location of Workers at Nuclear Power Plant Construction Sites Forecasting Methodology

    Energy Technology Data Exchange (ETDEWEB)

    Malhotra, S.; Manninen, D.

    1981-04-01

    The primary objective of this study was to improve the accuracy of socioeconomic impact assessments by providing an improved methodology for predicting the number of inmigrating workers and their residential location patterns at future nuclear power plant construction projects. Procedures for estimating several other variables which have important implications with respect to socioeconomic impact assessment (i.e., relocation of dependents, intention to remain in the area, type of housing selected, marital status, and average family size) were also developed. The analysis was based on worker survey data from 28 surveys which were conducted at 13 nuclear power plant construction sites. These survey data were examined to identify patterns of variation in variables of interest across sites as well as across various worker groups. In addition, considerable secondary data reflecting various regional and project characteristics were gathered for each site. These data were used to estimate the effects of factors underlying the observed variation in craft-specific migrant proportions and the residential location patterns of inmigrating workers across sites and surveys. The results of these analyses were then used as a basis for the specification of the forecasting procedures.

  8. Powerful Silences: Becoming a Survivor Through the Construction of Story

    Directory of Open Access Journals (Sweden)

    Arlene Voski Avakian

    2006-09-01

    Full Text Available Survivors’ accounts of traumatic events function on many levels for both the teller and the hearer. By giving voice to what has been silenced, testimonies to the lived experience of trauma challenge dominant perspectives on the meaning and significance of both historical and contemporary events. The construction of these stories and their telling may also provide a means of countering the devastating psychological effects of the trauma. This paper will explore one story about the Turkish genocide of Armenians in 1915 as told to me by my grandmother, Elmas Tutuian. Remarkably consistent over the years of its telling, Tutuian’s story omits as much as it tells. Examining this narrative from both a psychological and a textual perspective, I suggest that by choosing to be silent about parts of her experience, Tutuian constructed herself as a survivor rather than a victim. In choosing to tell her narrative to me, she also shaped my sense of resistance to oppression. The article references works analyzing survivors’ accounts of trauma from a literary, psychological, sociological, theological, and historical perspective.

  9. Risk Evaluation on UHV Power Transmission Construction Project Based on AHP and FCE Method

    Directory of Open Access Journals (Sweden)

    Huiru Zhao

    2014-01-01

    Full Text Available Ultra high voltage (UHV power transmission construction project is a high-tech power grid construction project which faces many risks and uncertainty. Identifying the risk of UHV power transmission construction project can help mitigate the risk loss and promote the smooth construction. The risk evaluation on “Zhejiang-Fuzhou” UHV power transmission construction project was performed based on analytic hierarchy process (AHP and fuzzy comprehensive evaluation (FCE method in this paper. After the risk evaluation index system was built, the AHP was used to determine the weights of risk indicators, and the FCE method was to perform the risk evaluation. The evaluation result shows that (1 “Zhejiang-Fuzhou” UHV power transmission construction project has moderate risk, which indicates the occurrence probability of project risk is medium and the risk occurrence will cause general loss for project, (2 “society risk” has the highest level, and the next is “policy and law risk,” “technique risk,” “natural environmental risk,” and “Management risk,” respectively, and it should keep main eye on the social risk, policy and law risk, and technique risk. Finally, according to the risk evaluation result, the specific risk control recommendations were proposed for the smooth construction of this project.

  10. Modelling, Simulation and Construction of a DC/DC Boost Power Converter: A School Experimental System

    Science.gov (United States)

    Silva-Ortigoza, R.; Silva-Ortigoza, G.; Hernandez-Guzman, V. M.; Saldana-Gonzalez, G.; Marcelino-Aranda, M.; Marciano-Melchor, M.

    2012-01-01

    We introduce a dc/dc boost power converter as a didactic prototype intended to support courses on electric circuit analysis experimentally. The corresponding mathematical model is obtained, the converter is designed and an experimental setup is described, constructed and tested. Simplicity of construction as well as low cost of components renders…

  11. Construction and evaluation of photovoltaic power generation and power storage system using SiC field-effect transistor inverter

    Energy Technology Data Exchange (ETDEWEB)

    Oku, Takeo, E-mail: oku@mat.usp.ac.jp; Matsumoto, Taisuke; Ohishi, Yuya [Department of Materials Science, The University of Shiga Prefecture, 2500 Hassaka, Hikone, Shiga 522-8533 (Japan); Hiramatsu, Koichi; Yasuda, Masashi [Collaborative Research Center, The University of Shiga Prefecture, 2500 Hassaka, Hikone, Shiga 522-8533 (Japan); Shimono, Akio; Takeda, Yoshikazu [Kyoshin Electric Co. Ltd., 18, Goshonouchi-Nishimachi, Shichijo, Shimogyou-ku, Kyoto 600-8865 (Japan); Murozono, Mikio [Clean Venture 21 Co., 38 Ishihara Douno-Ushirocho, Kissyouin, Minami-ku, Kyoto 601-8355 (Japan)

    2016-02-01

    A power storage system using spherical silicon (Si) solar cells, maximum power point tracking charge controller, lithium-ion battery and a direct current-alternating current (DC-AC) inverter was constructed. Performance evaluation of the DC-AC inverter was carried out, and the DC-AC conversion efficiencies of the SiC field-effect transistor (FET) inverter was improved compared with those of the ordinary Si-FET based inverter.

  12. Construction and preoperational test of Kashiwasaki-Kariwa Nuclear Power Station Unit No. 6

    Energy Technology Data Exchange (ETDEWEB)

    Natsume, Nobuo; Noda, Hiroshi [Tokyo Electric Power Co. (Japan)

    1996-12-31

    Unit 6 of the Kashiwazaki-Kariwa nuclear power station of Tokyo Electric Power Company, the world`s first advanced boiling water reactor (ABWR), is progressing ahead of the originally established schedule since the start of its construction in September 1991, and commercial operation is scheduled to start before the end of 1996.

  13. 78 FR 57373 - Appalachian Power Company; Notice of Application To Increase Water Withdraw and Construct Water...

    Science.gov (United States)

    2013-09-18

    ... Energy Regulatory Commission Appalachian Power Company; Notice of Application To Increase Water Withdraw and Construct Water Withdraw Facilty Pursuant to License Article 202 and Soliciting Comments, Motions... Filed: July 31, 2013. d. Applicant: Appalachian Power Company (licensee). e. Name of Project:...

  14. Participation, Power, Critique: Constructing a Standard for Electronic Patient Records

    DEFF Research Database (Denmark)

    Bossen, Claus

    2006-01-01

      The scope of participatory design is discussed through the case of a national standard for electronic patient records (EPR) in Denmark. Currently within participatory design, the relationship between participatory methods and techniques on the one hand and critical and emancipatory aims...... on the other hand is discussed. Some argue that participation in itself entails a strive towards democracy, others argue that the tendency to focus upon tools, techniques and the arena of single projects should be supplemented with emancipatory aims, such as technology assessment and critique of dominance...... participation, power, methodology and knowledge. Finally, standards can be crucial cases to engage in for participatory design, since they affect the work of many people and call for a focus on arenas beyond the single design project, which is the focus of many participatory design cases....

  15. Market Power of the Japanese Non-GM Soybean Import Market: The U.S. Exporters VS. Japanese Importers

    Directory of Open Access Journals (Sweden)

    Koichi Yamaura

    2011-12-01

    Full Text Available Genetically modified (GM soybean acreage has rapidly increased in the world in the past decade and globally the majority of countries now use GM soybeans to produce oil and meal for livestock and human consumption. Japan, however, uses only Non-GM soybeans as widely recognized high quality goods in vertically differentiated import soybeans in Japan, for direct human consumption of which more than 80% are imported from the U.S., Canada, and China. This research used the inverse residual demand model to estimate a U.S.-Japan partial equilibrium trade model to test the existence of market power in the Japanese Non-GM soybean import market. The U.S.-Japan partial equilibrium trade model incorporated the U.S. residual Non-GM soybean supply for Japan, the Japanese residual demand for U.S. Non-GM soybeans, and the equilibrium condition, where the U.S. residual Non-GM soybean supply equals the Japanese residual Non-GM soybean demand. Monthly data from January 2003 to December 2007 were used for the analysis. Empirical results indicated that U.S. Non-GM soybean exporters have stronger market power than Japanese Non-GM soybean importers. The results are different from other countries empirical studies and indicate that Japanese consumers are willing to pay higher prices for soybeans, tofu, natto, miso, and other all soy food products using Non-GM soybeans.

  16. Market Power of The Japanese Non-GM Soybean Import Market: The U.S. Exporters vs. Japanese Importers

    Directory of Open Access Journals (Sweden)

    Koichi Yamaura

    2011-12-01

    Full Text Available Genetically modified (GM soybean acreage has rapidly increased in the world in the past decade and globally the majority of countries now use GM soybeans to produce oil and meal for livestock and human consumption. Japan,however, uses only Non-GM soybeans as widely recognized high quality goods in vertically differentiated import soybeans in Japan, for direct human consumption of which more than 80% are imported from the U.S., Canada, and China. This research used the inverse residual demand model to estimate a U.S.-Japan partial equilibrium trade model to test the existence of market power in the Japanese Non-GM soybean import market. The U.S.-Japan partial equilibrium trade model incorporated the U.S. residual Non-GM soybeansupply for Japan, the Japanese residual demand for U.S. Non-GM soybeans, and the equilibrium condition, where the U.S. residual Non-GM soybean supply equals the Japanese residual Non-GM soybean demand. Monthly data from January 2003 to December 2007 were used for the analysis. Empirical results indicated that U.S. Non-GM soybean exporters have stronger market power than Japanese Non-GM soybean importers. The results are different from other countries empirical studies and indicate that Japanese consumers are willing to pay higher prices for soybeans, tofu, natto, miso, and other all soy food products using Non-GM soybeans.

  17. Safety awareness educational topics for the construction of power transmission systems with smart grid technologies

    Directory of Open Access Journals (Sweden)

    Bryan Hubbard

    2013-09-01

    Full Text Available Power transmission facilities in the U.S. are undergoing a transformation due to the increased use of distributed generation sources such as wind and solar power.  The current power grid system is also antiquated and in need of substantial retrofits to make it more efficient and reliable.  The new energy transmission system being designed and built to optimize power delivery is known as “Smart Grid”.  The increased activity in the construction of power transmission facilities and installation of new technologies into the current power system raises potential safety concerns.  Existing construction management curriculum may include general information about safety training, but does not typically include information about this specialized sector.  The objective of this study was to work with industry to identify key safety topics appropriate for inclusion in an introductory industrial construction course.  Results of interviews with industry identified numerous hazards that are not typically covered in typical construction curricula.  A joint undergraduate and graduate course in industrial construction was created to address these and additional concepts. A survey of the students was performed to determine the effectiveness of the course and also to determine their thoughts about the smart grid technologies and safety training. Information on electrical system hazards is presented along with results of the student surveys.

  18. Construction of a Cyber Attack Model for Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Varuttamaseni, Athi; Bari, Robert A.; Youngblood, Robert

    2017-05-01

    The consideration of how one compromised digital equipment can impact neighboring equipment is critical to understanding the progression of cyber attacks. The degree of influence that one component may have on another depends on a variety of factors, including the sharing of resources such as network bandwidth or processing power, the level of trust between components, and the inclusion of segmentation devices such as firewalls. The interactions among components via mechanisms that are unique to the digital world are not usually considered in traditional PRA. This means potential sequences of events that may occur during an attack may be missed if one were to only look at conventional accident sequences. This paper presents a method where, starting from the initial attack vector, the progression of a cyber attack can be modeled. The propagation of the attack is modeled by considering certain attributes of the digital components in the system. These attributes determine the potential vulnerability of a component to a class of attack and the capability gained by the attackers once they are in control of the equipment. The use of attributes allows similar components (components with the same set of attributes) to be modeled in the same way, thereby reducing the computing resources required for analysis of large systems.

  19. 加强核电厂建造安全管理%Strengthening of Nuclear Power Plant Construction Safety Management

    Institute of Scientific and Technical Information of China (English)

    俞军

    2012-01-01

    The article describes the warning of the Fukushima nuclear accident, and analyzes the major nuclear safety issues in nuclear power development in China, problems in nuclear power plants under construction, and how to strengthen supervision and management in nuclear power construction. It also points out that the development of nuclear power must attach great importance to the safety, and nuclear power plant construction should strictly implement the principle of "safety first and quality first"%介绍了福岛核事故对核安全的警示,分析了我国核电发展当前的主要问题、在建核电厂存在的问题,以及如何加强在建核电厂监督管理。指出了核电发展必须高度重视安全,核电建设要严格贯彻“安全第一,质量第一”的方针。

  20. Construction Time Analysis For Different Steps In Drill-AndBlast Method Of Hydro Power Tunnel Excavation

    OpenAIRE

    Erion Periku; Algest Aga

    2015-01-01

    One of the most important factors influencing the decision whether and how a tunnel is to be built are the estimated time and costs of construction. This study is based on construction time analysis for different steps in drill-and-blast method of hydro power tunnel excavation in working phase of 6.256,00 meters of tunnels which have different diameters varying from 4,20 to 7,60. There are made 737 field measurements and it is seen that many of the machinery and workmanship produc...

  1. A Study on the Construct Validity of Safety Culture Oversight Model for Nuclear Power Operating Organization

    Energy Technology Data Exchange (ETDEWEB)

    Jung, Su Jin; Choi, Young Sung; Oh, Jang Jin [Korea Institute of Nuclear Safety, Daejeon (Korea, Republic of)

    2015-05-15

    In Korea, the safety policy statement declared in 1994 by government stressed the importance of safety culture and licensees were encouraged to manage and conduct their self-assessments. A change in regulatory position about safety culture oversight was made after the event of SBO cover-up in Kori unit 1 and several subsequent falsification events. Since then KINS has been developing licensee's safety culture oversight system including conceptual framework of oversight, prime focus area for oversight, and specific details on regulatory expectations, all of which are based on defence-in-depth (DiD) safety enhancement approach. Development and gathering of performance data which is related to actual 'safety' of nuclear power plant are needed to identify the relationship between safety culture and safety performance. Authors consider this study as pilot which has a contribution on verifying the construct validity of the model and the effectiveness of survey based research. This is the first attempt that the validity of safety culture oversight model has been investigated with empirical data obtained from Korean nuclear power operating organization.

  2. Problems of effective use of new constructions of electric power installations, based on renewable energy resources

    Directory of Open Access Journals (Sweden)

    Balzannikov Mikhail

    2017-01-01

    Full Text Available Nowadays hydraulic and power installations can be defined as power installations that are well-designed in terms of construction and technology and working on renewable energy resources (RER. However wide use of such power stations is interfered by their low performance in comparison with thermal stations, using organic fuel. The purpose of the conducted research in this article is – search of ways to increase the competitiveness of power stations, using RER, in comparison with traditional power stations. In order to achieve the specified purpose the authors solved the following tasks: they analyzed and developed new constructive solutions of the power stations using RER; they developed the power-economic viability method for the choice of key parameters of the power stations working on RER. The researchers also gained the set objectives, using theoretical and experimental methods of calculation connected with physical modeling, the theoretical analysis and use of an economic case of the made decisions. Thus, carried-out analysis of designs of the power stations, based on RER allowed to develop a method of efficiency enhancement of these installations and to solve a problem of wider use of power stations as a part of the installations working on RER. The provided technical solutions of power stations that give the chance to develop new suggestions for improvement of designs of power stations, based on RER and to promote development of recommendations about their competitive recovery. As a result it will allow to create conditions for production of the effective national power stations, based on RER, and cumulative scientific and technical potential, that can be used for further development of nonconventional wind power and hydropower both in Russia, and abroad.

  3. THE CONSTRUCTION OF IMPORTANCE-PERFORMANCE GRID IN TOURIST SERVICES RESEARCH WITHOUT THE DIRECT DETERMINATION OF THE ATTRIBUTES IMPORTANCE

    Directory of Open Access Journals (Sweden)

    Ban Olimpia

    2012-07-01

    Full Text Available The importance-performance grid is a marketing instrument used to make decisions regarding the growth of the consumers’ satisfaction, by optimizing the attributes of products. This grid is a useful instrument, as it is shown in the paper, to the extent to which the importance and performance of the attributes are correctly recorded. Another idea underlined in the paper is that regarding the difficulty to directly determine the importance of attributes or in the same stage with the determination of the service performance, according to these attributes. The objectives of this paper are to analyze the importance-performance grid (suggested by Martilla and amended by Abalo,through an empirical study in the field of tourist services used and to test the conditions to carry out this grid taking into account the hypothetical case of indirectly determining the importance of the quality attributes. The literature in the field regarding the importance-performance analysis is analysed and the subsequent amendments to the previous grid suggested by Martilla and James in 1977. The present paper is a continuation of several studies on the same subject, in which the following research methods were used: direct survey by questionnaire, the Spearman correlation coefficient, and the entropy calculus. A comparative analysis of the importance-performance grid if directly recording the importance of attributes (through survey by questionnaire and of the indirect determination of the importance of the attributes (through the Spearman coefficient and entropy calculus is being suggested. The results indicate possible uses of methods, yet it raises a series of collateral problems regarding their application. The contribution of this paper is given by the suggestion of two methods to indirectly determine the importance of attributes, which take into account the data measurement scale used and the collinearity among attributes and which lead to pertinent results

  4. Design and Construction Multi Output Power Transmition with Single Prime Mover on Agricultural Products Machine

    Science.gov (United States)

    Koten, V. K.; Tanamal, C. E.

    2017-03-01

    Manufacturing agricultural products by the farmers, people or person who involve in medium industry, small industry, and households industry still be done in separately. Although the power on primemover is enough, in operations, primemover was only to move one of several agricultural products machine. This study attempts to design and construct power transmition multi output with single primemover; a single construction that allows primemover move some agricultur products machine in the same or not. This study begins with the determination of production capacity and the power to destroy products, the determination of resources and rotation, normalization of resources and rotation, the determination of the type material used, the size determination of each machine elements, construction machine elements, and assemble machine elements into a construction multi output power transmition with single primemover on agricultural products machine. The results show that with a input normalization 4 PK (2984 Watt), rotation 2000 rpm, the strength of material 60 kg/mm2, and several operating consideration, thus obtained size of machine elements through calculation. Based on the size, the machine elements is made through the use of some machine tools and assembled to form a multi output power transmition with single primemover.

  5. Risk Evaluation of a UHV Power Transmission Construction Project Based on a Cloud Model and FCE Method for Sustainability

    Directory of Open Access Journals (Sweden)

    Huiru Zhao

    2015-03-01

    Full Text Available In order to achieve the sustainable development of energy, Ultra High Voltage (UHV power transmission construction projects are being established in China currently. Their high-tech nature, the massive amount of money involved, and the need for multi-agent collaboration as well as complex construction environments bring many challenges and risks. Risk management, therefore, is critical to reduce the risks and realize sustainable development of projects. Unfortunately, many traditional risk assessment methods may not perform well due to the great uncertainty and randomness inherent in UHV power construction projects. This paper, therefore, proposes a risk evaluation index system and a hybrid risk evaluation model to evaluate the risk of UHV projects and find out the key risk factors. This model based on a cloud model and fuzzy comprehensive evaluation (FCE method combines the superiority of the cloud model for reflecting randomness and discreteness with the advantages of the fuzzy comprehensive evaluation method in handling uncertain and vague issues. For the sake of proving our framework, an empirical study of “Zhejiang-Fuzhou” UHV power transmission construction project is presented. As key contributions, we find the risk of this project lies at a “middle” to “high” level and closer to a “middle” level; the “management risk” and “social risk” are identified as the most important risk factors requiring more attention; and some risk control recommendations are proposed. This article demonstrates the value of our approach in risk identification, which seeks to improve the risk control level and the sustainable development of UHV power transmission construction projects.

  6. Improvement of system code importing evaluation of Life Cycle Analysis of tokamak fusion power reactors

    Energy Technology Data Exchange (ETDEWEB)

    Kobori, Hikaru [Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan); Kasada, Ryuta, E-mail: r-kasada@iae.kyoto-u.ac.jp [Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan); Hiwatari, Ryoji [Central Research Institute of Electric Power Industry, Tokyo (Japan); Konishi, Satoshi [Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan)

    2016-11-01

    Highlights: • We incorporated the Life Cycle Analysis (LCA) of tokamak type DEMO reactor and following commercial reactors as an extension of a system code. • We calculated CO{sub 2} emissions from reactor construction, operation and decommissioning that is considered as a major environmental cost. • We found that the objective of conceptual design of the tokamak fusion power reactor is moved by changing evaluation index. • The tokamak fusion reactor can reduce CO{sub 2} emissions in the life cycle effectively by reduction of the amount involved in the replacement of internal components. • The tokamak fusion reactor achieves under 0.174$/kWh electricity cost, the tokamak fusion reactor is contestable with 1500 degrees-class LNG-fired combined cycle power plant. - Abstract: This study incorporate the Life Cycle Analysis (LCA) of tokamak type DEMO reactor and following commercial reactors as an extension of a system code to calculate CO{sub 2} emissions from reactor construction, operation and decommissioning that is considered as a major environmental cost. Competitiveness of tokamak fusion power reactors is expected to be evaluated by the cost and environmental impact represented by the CO{sub 2} emissions, compared with present and future power generating systems such as fossil, nuclear and renewables. Result indicated that (1) The objective of conceptual design of the tokamak fusion power reactor is moved by changing evaluation index. (2) The tokamak fusion reactor can reduce CO{sub 2} emissions in the life cycle effectively by reduction of the amount involved in the replacement of internal components. (3) The tokamak fusion reactor achieves under 0.174$/kWh electricity cost, the tokamak fusion reactor is contestable with 1500 degrees-class LNG-fired combined cycle power plant.

  7. Constructing the probability distribution function for the total capacity of a power system

    Energy Technology Data Exchange (ETDEWEB)

    Vasin, V.P.; Prokhorenko, V.I.

    1980-01-01

    The difficulties involved in constructing the probability distribution function for the total capacity of a power system consisting of numerous power plants are discussed. A method is considered for the approximate determination of such a function by a Monte Carlo method and by exact calculation based on special recursion formulas on a particular grid of argument values. It is shown that there may be significant deviations between the true probability distribution and a normal distribution.

  8. 77 FR 29701 - Impact of Construction (Under a Combined License) of New Nuclear Power Plant Units on Operating...

    Science.gov (United States)

    2012-05-18

    ... a Combined License) of New Nuclear Power Plant Units on Operating Units at Multi-Unit Sites AGENCY... a COL intending to construct and operate new nuclear power plants (NPPs) on multi-unit sites to... Impacts of Construction (under a Combined License) of New Nuclear Power Plants on Operating Units at...

  9. Construction Time Analysis For Different Steps In Drill-AndBlast Method Of Hydro Power Tunnel Excavation

    Directory of Open Access Journals (Sweden)

    Erion Periku

    2015-01-01

    Full Text Available One of the most important factors influencing the decision whether and how a tunnel is to be built are the estimated time and costs of construction. This study is based on construction time analysis for different steps in drill-and-blast method of hydro power tunnel excavation in working phase of 6.256,00 meters of tunnels which have different diameters varying from 4,20 to 7,60. There are made 737 field measurements and it is seen that many of the machinery and workmanship productions rates per unit time are significantly lower, varying from 35% to 50%, of that defined in their technical specifications, measurements indicate that highest performance is reached in 7,60m diameter tunnel excavation. It is believed that these data will be helpful for planning and management process of tunnel construction projects, especially those planned to be built in Albania where labor market carries similar features.

  10. Understanding Bulk Power Reliability: The Importance of Good Data and A Critical Review of Existing Sources

    Energy Technology Data Exchange (ETDEWEB)

    Fisher, Emily; Eto, Joseph H.; LaCommare, Kristina Hamachi

    2011-10-19

    Bulk power system reliability is of critical importance to the electricity sector. Complete and accurate information on events affecting the bulk power system is essential for assessing trends and efforts to maintain or improve reliability. Yet, current sources of this information were not designed with these uses in mind. They were designed, instead, to support real-time emergency notification to industry and government first-responders. This paper reviews information currently collected by both industry and government sources for this purpose and assesses factors that might affect their usefulness in supporting the academic literature that has relied upon them to draw conclusions about the reliability of the US electric power system.

  11. Small Hydro Power-An Important Renewable Energy Sources for Rural Electrification in Nigeria

    Institute of Scientific and Technical Information of China (English)

    MamudaAbdullahi

    2005-01-01

    This paper is trying to highlight the importance of constructing small hydropower station as the alternative source of energy for rural electrification in Nigeria and stressedthe need for the Federal Government of Nigeria to provide a clear open policy that will make environment favourable and safe for local and foreign private investors on small Hydropower.

  12. The bourner lecture: Electrochemical power sources — an important contributor to modern health care

    Science.gov (United States)

    Holmes, Curtis F.

    The invention of the cardiac pacemaker thirty-nine years ago marked the beginning of the era of the treatment of health disorders by battery powered implantable devices. Since that time several different battery-powered implantable devices have been developed and are in use. Batteries play an important role in external medical devices as well, ranging from surgical tools to motorized wheel chairs. As both battery technology and device development progress, the use of batteries in the treatment of disease will continue to be an important feature of medical care.

  13. Zhaotong Accelerated the Construction Progress of 700,000 t/a Hydraulic Power Aluminum Project

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    Zhaotong Municipal Government signed the"Framework Agreement on Hydraulic Power Aluminum Project for the Recovery&Reconstruction; after Ludian 6.5 grade Earthquake"with Yunnan Metallurgical Group Co.,Ltd recently,both sides confirmed the construction of 700,000 t/a electrolytic aluminum production line in Zhaoyang Industrial Park.

  14. Optimal design of lattice metal constructions of overhead power transmission lines

    Directory of Open Access Journals (Sweden)

    Pustovgar Andrey

    2016-01-01

    Full Text Available The article presents a new concept of design of power lines which allowed us to develop new unified power transmission supports, efficient and reliable ones. For the first time, a method of optimum design of overhead power lines has been developed which considered the power line as a united structural system, the relief, the atmospheric and climatic conditions, the environment pollution, the efficiency requirements, the technological and operational expenditures. The article describes the changes introduced into the requirements for the dimensions and parameters of grid metal works with the minimum mass. The optimum design, the computer-aided assembly process and the use of advanced technologies guarantee the reduction of the construction period and the increase in the maintenance period of power lines.

  15. Integrated Cost and Schedule Control Systems for Nuclear Power Plant Construction: Leveraging Strategic Advantages to Owners and EPC Firms

    Directory of Open Access Journals (Sweden)

    Youngsoo Jung

    2015-01-01

    Full Text Available As the owners expect that the cost and time for nuclear power plant construction would decrease with new entrants into the market, there will be severer competition in the nuclear industry. In order to achieve performance improvement and to attain competitive advantages under the globalized competition, practitioners and researchers in the nuclear industry have recently exerted efforts to develop an advanced and efficient management methodology for the nuclear mega-projects. Among several candidates, integrated cost and schedule control system is of great concern because it can effectively manage the three most important project performances including cost, time, and quality. In this context, the purpose of this paper is to develop a project numbering system (PNS of integrated cost and schedule control system for nuclear power plant construction. Distinct attributes of nuclear power plant construction were investigated first in order to identify influencing variables that characterize real-world implementation of advanced cost and schedule controls. A scenario was then developed and analysed to simulate a case-project. By using this case-project, proposed management requirements, management methods, measurement techniques, data structure, and data collection methods for integrated cost and schedule PNS were illustrated. Finally, findings and implications are outlined, and recommendations for further research are presented.

  16. INFLUENCE CONSTRUCTION OF THE ROLLER ON THE POWER OF THE DRIVE SYSTEM OF THE BELT CONVEYOR

    Directory of Open Access Journals (Sweden)

    Tadeusz OPASIAK

    2014-09-01

    Full Text Available The paper presents a study of new design of rollers. The study focused on the measurement of static and dynamic resistance of rotating rollers and the impact of new construction on the power consumption of the belt conveyor. Rollers have been modified through the use of class C4 bearing seals and labyrinth seal U4Exp 62/65 with a cover 2LU4 of runner construction. Measurements of static and dynamic resistance of rotating rollers were made on a universal rollers stand and power measurements were carried out on a belt conveyor power supply system Gwarek 1200 No. TW in mine KWK Mysłowice–Wesoła.

  17. Diligence is more important than low prices. Photovoltaic power plants; Sorgfalt geht vor Niedrigpreis. Photovoltaikanlagen

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2012-07-01

    In all likeliness, photovoltaic power plants will have good returns. But beware: Also mini-returns or losses are possible at bad locations or in case of quality deficiencies. Good standards in the technology and assembly are important. The authors of the contribution under consideration say what aspects have to be considered by the reader of this contribution.

  18. Construction of a cooling water inlet system with settling basin of Derna power plant station (Libya)

    Energy Technology Data Exchange (ETDEWEB)

    Glissmann, R.; Heimburg, A.M. von; Sinner, H.

    1985-03-01

    Construction of a cooling water intake system with settling basin. The extension of the power station at Derna, in Libya, necessitated the construction of a new cooling water intake system including screening facilities and a settling basin. Construction based on extensive prefabrication (precast concrete) was chosen. The precast reinforced units, ranging up to about 4000 t in weight, were towed on barges to the site of erection. At Derna these units were temporarily stored on the sea bed for several months, during which they were exposed to winter storms and rough sea. The major precast portion of the settling basin was constructed direct on the barge. On arrival at the site, the barge was sunk, allowing the precast unit, which was designed with sufficient buoyancy, to be floated off. The open unprotected coast required special arrangements for the protection of personnel, structures and equipment.

  19. Aluminum Alloy Conductors to Be Widely Applied in Power Grid Construction in the 12th Five-Year Plan Period

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    <正>2011 is the first year of the 12th Five-Year Plan, but electric power supply has become a bottleneck of China’s economic development. Therefore, it is urgent to carry out power grid construction. From the beginning of 2011 till now, China has made a huge investment to build state-level smart power grid, and new aluminum alloy transmission conductors or smart power grid will play an active role in the construction boom.

  20. Potential Use of Malaysian Thermal Power Plants Coal Bottom Ash in Construction

    Directory of Open Access Journals (Sweden)

    Abdulhameed Umar Abubakar

    2012-11-01

    Full Text Available As Malaysia focuses its attention to the call for a “greener” culture, so did the engineers and those in the scientific community especially the construction industry who is a major contributor to the depletion of green house gases. The engineering and construction community has now taken up the challenge for the use of “green and recycled by-products” in construction. One of those by-products is the Coal Bottom Ash (CBA from thermal power plants that faces an increasing production running into hundreds of thousand tonnes in Malaysia alone, and its method of disposal is relegated to landfills alone with no other commercial usage. The construction industry is now forced to rethink on the utilization of the industrial by-products as supplementary materials due to the continuous depletion of natural aggregates in construction. A significant amount of research has been conducted elsewhere on CBA to ascertain its pozzolanic activity, compressive strength in concrete and mortar, durability, water absorption characteristics and density, in order to ensure its usage as a construction material. In this paper, a critical review of the strength characteristics of concrete and mortar as influenced by CBA as partial replacement of fine aggregate is presented based on the available information in the published literatures. Diverse physical and chemical properties of CBA from different power plants in Malaysia are also presented. The influence of different types, amounts and sources of CBA on the strength and bulk density of concrete is discussed. The setting time, workability and consistency as well as the advantages and disadvantages of using CBA in construction materials are also highlighted. An effective utilization of CBA in construction materials will significantly reduce the accumulation of the by-products in landfills and thus reduce environmental pollution.

  1. GENERAL QUESTIONS AS TO PROVIDING ELECTROMAGNETIC COMPATIBILITY OF POWER CABLE LINES, THEIR AMPERAGE CAPACITY AND TYPES OF SHIELD CONSTRUCTION

    Directory of Open Access Journals (Sweden)

    I.A. Kostiukov

    2013-09-01

    Full Text Available Works studying ways of reducing magnetic fields of cross-linked polyethylene power cable lines are reviewed. Different aspects of single-phase power cable shield construction influence on thermal conditions of a three-phase power cable line are analyzed. Questions concerning electromagnetic compatibility of power cables are considered.

  2. Optimal construction and combined wind and diesel power production in a regional power purchase

    Energy Technology Data Exchange (ETDEWEB)

    Lautala, P.; Antila, H.; Raekkoelaeinen, J.; Heikkilae, H. [Tampere Univ. of Technology (Finland). Automation and Control Inst.

    1998-12-31

    A weak electricity transmission and distribution network and a wind generator were modelled by a non-linear dynamic model. Energy purchase of a small utility was modelled as a linear mixed integer optimisation problem. The dynamic model was used to simulate the effects of distance between the wind generator and a regional power grid and the effects of changes in the production of the wind generator. The optimisation model was used to investigate the effect of the combined diesel and wind production. In this case the results show that if the distance between the generator and the network grid is more than 70 km, then voltage fluctuations exceed acceptable levels. The optimisation provides the value of the combined diesel and wind production. (orig.)

  3. Benefits of full scope simulators during solar thermal power plants design and construction

    Science.gov (United States)

    Gallego, José F.; Gil, Elena; Rey, Pablo

    2017-06-01

    In order to efficiently develop high-precision dynamic simulators for solar thermal power plants, Tecnatom adapted its simulation technology to consider solar thermal models. This effort and the excellent response of the simulation market have allowed Tecnatom to develop simulators with both parabolic trough and solar power tower technologies, including molten salt energy storage. These simulators may pursue different objectives, giving rise to training or engineering simulators. Solar thermal power market combines the need for the training of the operators with the potential benefits associated to the improvement of the design of the plants. This fact along with the simulation capabilities enabled by the current technology and the broad experience of Tecnatom present the development of an engineering+training simulator as a very advantageous option. This paper describes the challenge of the development and integration of a full scope simulator during the design and construction stages of a solar thermal power plant, showing the added value to the different engineering areas.

  4. Psychologization, constituent power and autonomy: Rethinking subjectivity construction in post-modernity

    Directory of Open Access Journals (Sweden)

    Jorquera Fariñas, Víctor

    2007-11-01

    Full Text Available According to influential theories of identity in post-modernity, as community bonds loosen, individuals have increasing discretion in the construction of their own identity. In this article we argue for seeing modernization as the progressive psychologization of subjectivity. That reveals the mechanisms of what we can call, following Foucault, "constituent power": a power that turns the psychological subject's conflicts away from external objects and towards an inner world. It is that inner conflict that promotes the modern preoccupation with identity.

  5. Study on the Construction Scale of Pumped-Storage Hydropower in Northeast Power Grid

    Institute of Scientific and Technical Information of China (English)

    Wang Nan; Bai Jianhua; Li You; Gu Xiaoguang; Li Chunshan

    2007-01-01

    @@ Peak regulation in the Northeast power grid is going from bad to worse. This stimulates the need to pumped-storage hydropower for its role in this respect. Based on the status of power sources and the load forecast in the system, the author puts forward a minimum construction scale of pumped-storage stations by the end of 2020 from technical feasibility, and an economic scale from economy. The analysis and comparison on the two schemes can be regarded as a reference for reasonably planning pumped-storage stations in the northeastern part of China.

  6. Psychologization, constituent power and autonomy: Rethinking subjectivity construction in post-modernity

    Directory of Open Access Journals (Sweden)

    Víctor Jorquera Fariñas

    2007-11-01

    Full Text Available According to influential  theories of identity in post-modernity,  as community bonds loosen, individuals  have increasing discretion in the construction of their own identity.  In this article we argue for seeing modernization as the progressive psychologization of subjectivity. That reveals the mechanisms of what we can call, following Foucault, "constituent power": a power that turns the psychological subject's conflicts  away from external objects and towards an inner world. It is that inner conflict that promotes the modern preoccupation with identity.

  7. Construction and characterization of spherical Si solar cells combined with SiC electric power inverter

    Science.gov (United States)

    Oku, Takeo; Matsumoto, Taisuke; Hiramatsu, Kouichi; Yasuda, Masashi; Shimono, Akio; Takeda, Yoshikazu; Murozono, Mikio

    2015-02-01

    Spherical silicon (Si) photovoltaic solar cell systems combined with an electric power inverter using silicon carbide (SiC) field-effect transistor (FET) were constructed and characterized, which were compared with an ordinary Si-based converter. The SiC-FET devices were introduced in the direct current-alternating current (DC-AC) converter, which was connected with the solar panels. The spherical Si solar cells were used as the power sources, and the spherical Si panels are lighter and more flexible compared with the ordinary flat Si solar panels. Conversion efficiencies of the spherical Si solar cells were improved by using the SiC-FET.

  8. 10 CFR Appendix N to Part 50 - Standardization of Nuclear Power Plant Designs: Permits To Construct and Licenses To Operate...

    Science.gov (United States)

    2010-01-01

    ... Construct and Licenses To Operate Nuclear Power Reactors of Identical Design at Multiple Sites N Appendix N... FACILITIES Pt. 50, App.N Appendix N to Part 50—Standardization of Nuclear Power Plant Designs: Permits To..., apply to construction permits and operating licenses subject to this appendix N. 2. Applications for...

  9. Constructions of power in the documentary film Maradona, by Emir Kusturica

    Directory of Open Access Journals (Sweden)

    Ana Maria Acker

    2012-11-01

    Full Text Available The article analyzes how the filmmaker Emir Kusturica composes the main character in the documentary Maradona, (2008. The constructions of power around the figure of the player are verified, especially by the authors Pierre Bourdieu, Max Weber and Erving Goffman. The purpose of this paper is to try to understand how the Serbian director explains the Argentine phenomenon in football through out the documentary narrative.

  10. Safety leadership at construction sites: the importance of rule-oriented and participative leadership.

    Science.gov (United States)

    Grill, Martin; Pousette, Anders; Nielsen, Kent; Grytnes, Regine; Törner, Marianne

    2017-07-01

    Objectives The construction industry accounted for >20% of all fatal occupational accidents in Europe in 2014. Leadership is an essential antecedent to occupational safety. The aim of the present study was to assess the influence of transformational, active transactional, rule-oriented, participative, and laissez-faire leadership on safety climate, safety behavior, and accidents in the Swedish and Danish construction industry. Sweden and Denmark are similar countries but have a large difference in occupational accidents rates. Methods A questionnaire study was conducted among a random sample of construction workers in both countries: 811 construction workers from 85 sites responded, resulting in site and individual response rates of 73% and 64%, respectively. Results The results indicated that transformational, active transactional, rule-oriented and participative leadership predict positive safety outcomes, and laissez-faire leadership predict negative safety outcomes. For example, rule-oriented leadership predicts a superior safety climate (β=0.40, Pconstruction industry, which may partly explain the difference in occupational accident rates. Conclusions Applying less laissez-faire leadership and more transformational, active transactional, participative and rule-oriented leadership appears to be an effective way for construction site managers to improve occupational safety in the industry.

  11. Japanese Forwarders’ Local Import Hub in Asia: 3PL Power and Environmental Improvement

    Directory of Open Access Journals (Sweden)

    Kunio MIYASHITA

    2015-09-01

    Full Text Available The purpose of this paper is to demonstrate by an econometric method which countries or regions in Asia are superior import hubs for Japan based on two axes, the third party logistics (3PL business power of Japanese local forwarders and the logistical environment catch-up speed of these countries. According to the estimated results, this simple model can explain the structural changes in China's logistics based on its WTO accession and can develop Japanese forwarders’ stable import hub ranking by suggesting total optimization in the East Asian NIES (newly industrial economies and the ASEAN (Association of Southeast Asian Countries districts by Japanese forwarders.

  12. The Prospects for Nuclear Power Construction after the Restart of Nuclear Power%核电重启后我国核电建设前景分析

    Institute of Scientific and Technical Information of China (English)

    熊伟

    2014-01-01

    With the progress of society, ecological environment is becoming worse and worse, and the clean energy is becoming more and more important. As a kind of efficient clean energy, nuclear power plays an irreplaceable role in the worldwide energy and power development. This essay comprehensively illustrates the importance of nuclear power development to national economic construction and the necessity of energy structure adjustment as well. With a batch of nuclear plant projects permitted on NPC and CPPCC, the nuclear power industry development in our country is restarted at a substantive stage. Under the present circumstances, the prospects for nuclear power development in our country are analyzed in the paper.%随着社会发展和生态环境日益恶化,清洁能源的地位日益凸现。核电是高效、稳定的清洁能源,是世界能源和电力发展不可或缺的一部分。本文综合分析了核电能源的竞争力,我国核电发展现状,以及核电发展对我国能源结构调整的重要性。随着今年两会报告中明确开工建设一批核电项目,我国核电建设步入实质性重启阶段,在此基础上本文最后对我国核电发展规模进行展望。

  13. 10 CFR Appendix N to Part 52 - Standardization of Nuclear Power Plant Designs: Combined Licenses To Construct and Operate...

    Science.gov (United States)

    2010-01-01

    ... Licenses To Construct and Operate Nuclear Power Reactors of Identical Design at Multiple Sites N Appendix N... FOR NUCLEAR POWER PLANTS Pt. 52, App. N Appendix N to Part 52—Standardization of Nuclear Power Plant... that the applicant wishes to have the application considered under 10 CFR part 52, appendix N, and must...

  14. The relative importance of social and institutional conditions in the planning of wind power projects

    Energy Technology Data Exchange (ETDEWEB)

    Agterbosch, Susanne [Institute for Management Research, Department of Political Sciences of the Environment, Radboud University Nijmegen, P.O. Box 9108, Nijmegen (Netherlands); Meertens, Ree M. [Department of Health Promotion and Health Education, University of Maastricht, P.O. Box 616, 6200 MD Maastricht (Netherlands); Vermeulen, Walter J.V. [Copernicus Institute for Sustainable Development and Innovation, Utrecht University, P.O. Box 80.115, 3508 TC Utrecht (Netherlands)

    2009-02-15

    Governments around the world try to stimulate the development and use of renewable energy technologies, like wind energy. While wind turbines are increasingly being implemented, however, a lack of social acceptance at the local level remains an important challenge for developers of wind power plants. This article aims to explore the relative importance of social and institutional conditions and their interdependencies in the operational process of planning wind power schemes. The article not only focuses on how negative local social conditions can frustrate public policy (cf. NIMBY syndrome), but also on how positive local social conditions can compensate for a negative public policy framework. We analyzed the cases of implementing wind power of two actors (the regional energy distributor and small private investors) in the municipality of Zeewolde, the Netherlands. Both cases illustrate that the formal institutional framework (formal rules, procedures and instruments) is neutral in a certain sense. Social conditions - management styles, interests and informal contacts - put meaning in this framework. The way stakeholders deal with the prevailing institutional structure clarifies social acceptance and therewith implementation. (author)

  15. A Continuing Education Short Course and Engineering Curriculum to Accelerate Workforce Development in Wind Power Plant Design, Construction, and Operations

    Energy Technology Data Exchange (ETDEWEB)

    Tinjum, James [Univ. of Wisconsin, Madison, WI (United States)

    2012-11-29

    Significant advances in wind turbine technology and wind turbine power plant capabilities are appearing in the U.S. Sites that only 10 years ago might have been overlooked are being considered for build out. However, the development of a skilled workforce in the engineering fields and construction trades lags the potential market, especially if the industry is expected to site, design, construct, and operate sufficient wind power plant sites to meet the potential for 20% wind energy by 2030. A select few firms have penetrated the engineer-procure-construction (EPC) market of wind power plant construction. Competition and know-how in this market is vital to achieve cost-effective, design-construct solutions. The industry must produce or retrain engineers, contractors, and technicians to meet ambitious goals. Currently, few universities offer undergraduate or graduate classes that teach the basics in designing, building, and maintaining wind power plants that are safe, efficient, and productive.

  16. 电力建设中架空输配电线路的设计及施工%Design and Construction of Electric Power Construction of Overhead Transmission and Distribution Lines

    Institute of Scientific and Technical Information of China (English)

    钟沃波

    2016-01-01

    The socio-economic level of continuous improvement,and promote the further development of the power industry, and in recent years,China’s comprehensive national strength continued to improve,the population also increase,and the amount of people on the electricity supply and demand is increasing,then power construction engineering quality It is very important.The impact of power construction projects in overhead transmission and distribution lines throughout the design and construction of power engineering quality is great,this paper discusses the construction of overhead electric power transmission and distribution line design and construction,and practicality of proposed measures apply for the power construction enhance the level to provide a reference.%社会经济水平的不断提升,推动了电力行业的进一步发展,且近年来我国综合国力持续增强,人口数量亦随之增多,人们对电量的供求量不断增加,这时电力建设工程质量十分重要。而电力建设工程中的架空输配电线路设计与施工对整个电力工程质量影响极大,探讨了电力建设中架空输配电线路设计与施工,并提出了实用性应用措施,为电力建设工程水平提升提供参考依据。

  17. DESIGN AND CONSTRUCTION OF A 12 kV DC POWER SUPPLY 175

    African Journals Online (AJOL)

    DR. AMINU

    yield the targeted output voltage of over 10 kV, and the construction of a 12-kV d.c voltage generator. .... important as the number of stages in the multiplier is increased, the actual ..... by M. E. Khalifa, Marcel Dekker Inc. New York, pp 519- 566.

  18. Know-how from Austria for a hydroelectric power plant in Hungary. The Nagymaros power plant is under construction at the Danube river

    Energy Technology Data Exchange (ETDEWEB)

    Fremuth, W.

    1989-06-01

    In Hungary, a hydroelectric power plant is being constructed at the Danube river and is planned to be operated by the CSSR and Hungary. The project management is an Austrian company, Donaukraft, who thus inverts its know-how in hydroelectric power plant construction. The plant is planned to be ready for operation by 1994, and will stretch out over a distance of 180 kilometers along the Danube river, supplying about 171 MW of electricity. (orig.).

  19. IMPORT SUBSTITUTION IN THE CONSTRUCTION AND IN INDUSTRIAL PODUCTION: ACCORDING TO OPINION POLL RESULTS

    Directory of Open Access Journals (Sweden)

    Pryadko Igor' Petrovich

    2016-03-01

    Full Text Available The authors addressed matters related to import substitution, which are widely discussed in the crisis period on different levels of economic management. The interrelation of import substitu-tion and solution of one of the main tasks of Rus-sian economy - diversification - is pointed out. The authors made an attempt to disperse some stereo-types, which were formed in mass consciousness concerning substitution of import ware. Patriotism is considered as one of the factors of consumer behavior.

  20. Welding Metallurgy of Nickel-Based Superalloys for Power Plant Construction

    Science.gov (United States)

    Tung, David C.

    Increasing the steam temperature and pressure in coal-fired power plants is a perpetual goal driven by the pursuit of increasing thermal cycle efficiency and reducing fuel consumption and emissions. The next target steam operating conditions, which are 760°C (1400°F) and 35 MPa (5000 psi) are known as Advanced Ultra Supercritical (AUSC), and can reduce CO2 emissions up to 13% but this cannot be achieved with traditional power plant construction materials. The use of precipitation-strengthened Nickel-based alloys (superalloys) is required for components which will experience the highest operating temperatures. The leading candidate superalloys for power plant construction are alloys 740H, 282, and 617. Superalloys have excellent elevated temperature properties due to careful microstructural design which is achieved through very specific heat treatments, often requiring solution annealing or homogenization at temperatures of 1100 °C or higher. A series of postweld heat treatments was investigated and it was found that homogenization steps before aging had no noticeable effect on weld metal microhardness, however; there were clear improvements in weld metal homogeneity. The full abstract can be viewed in the document itself.

  1. Information management system for design, construction and operation of nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Bolch, M.C. (Duke Power Co. (US)); Jones, C.R. (S. Levy Inc. (US))

    1990-01-01

    This paper describes the principal requirements and features of a computerized information management system (IMS) believed to be a necessary part of the program to design, build and operate the next generation of nuclear power plants in the United States. This way a result of extensive review and input from an industry group studying future nuclear power plant construction improvements. The needs of the power plant constructor, owner and operator for such a computerized technical data base are described in terms of applications and scope and timing of turnover of the IMS by the plant designer. The applications cover the full life cycle of the plant including project control, construction activities, quality control, maintenance and operation. The scope of the IMS is also described in terms of the technical data to be included, hardware and software capabilities and training. The responsibilities of the plant designer for developing the IMS and generating the technical data base is defined as part of the plant process. The requirements to be met include a comprehensive plant data model and computer system hardware and software.

  2. Leaf Construction Cost and Related Ecophysiological Parameters of Rice Crop and Its Important Weeds

    Institute of Scientific and Technical Information of China (English)

    Vartika SINGH; Hema SINGH

    2012-01-01

    To understand the reason for the success of weeds,we investigated the energetic cost of leaf construction,and certain ecophysiological traits of rice and its dominant weeds.On physiological basis among all weeds,Caesulia axillaris Roxburgh was found to be the most serious,followed by Echinochloa cruss-galli L.Beauv and Echinochloa colonum L.Link,while Fimbristylis miliaceae L.Vahl and Cyperus iria L.were moderate weeds of the rice fields.C.axillaris had the lowest leaf construction cost (LCC) both on a mass basis (1.15 g/g) and on a unit area basis (22.93 g/m2).Comparatively higher specific leaf area,photosynthetic rate,photosynthetic nitrogen use efficiency,leaf area ratio and leaf area index provided C.axillaris with further competitive advantage.Low LCC suggests that weeds utilize carbon resource more efficiently than the crop and potentially spend the saved energy on other competitive strategies viz.seed production,biomass production and high relative growth rate,which results in low crop yield and increase in weed seed bank.

  3. Design and construction of double-Blumlein HV pulse power supply

    Indian Academy of Sciences (India)

    Deepak K Gupta; P I John

    2001-10-01

    A double Blumlein pulse generator is constructed using a coaxial cable. This power supply is capable of providing a voltage up to 20 kV across a matched load and 40kV across an open load with a charging voltage of 10 kV. It is designed to provide a pulse width of 110ns. A rise time of ∼10ns is obtained with present spark gap. A rotating spark gap is also designed and constructed to get a pulse repetition rate of 25Hz. Although, in the present work this pulse generator is used to study the streamer discharge in air, it is useful in many other applications also.

  4. 10 CFR 50.49 - Environmental qualification of electric equipment important to safety for nuclear power plants.

    Science.gov (United States)

    2010-01-01

    ... important to safety for nuclear power plants. 50.49 Section 50.49 Energy NUCLEAR REGULATORY COMMISSION... nuclear power plants. (a) Each holder of or an applicant for an operating license issued under this part... nuclear power plant for which the certifications required under § 50.82(a)(1) or § 52.110(a)(1) of...

  5. Power

    DEFF Research Database (Denmark)

    Elmholdt, Claus Westergård; Fogsgaard, Morten

    2016-01-01

    In this chapter, we will explore the dynamics of power in processes of creativity, and show its paradoxical nature as both a bridge and a barrier to creativity in organisations. Recent social psychological experimental research (Slighte, de Dreu & Nijstad, 2011) on the relation between power...... and creativity suggests that when managers give people the opportunity to gain power and explicate that there is reason to be more creative, people will show a boost in creative behaviour. Moreover, this process works best in unstable power hierarchies, which implies that power is treated as a negotiable...... and floating source for empowering people in the organisation. We will explore and discuss here the potentials, challenges and pitfalls of power in relation to creativity in the life of organisations today. The aim is to demonstrate that power struggles may be utilised as constructive sources of creativity...

  6. Construction and Testing of a Low-power Cryostat for MARS

    Energy Technology Data Exchange (ETDEWEB)

    Aalseth, Craig E.; Caggiano, Joseph A.; Day, Anthony R.; Fast, James E.; Fuller, Erin S.

    2007-10-01

    A low-power cryostat was designed and built for the Multi-sensor Airborne Radiation Survey (MARS) project for the purpose of housing a close-packed high-purity germanium (HPGe) detector array of 14 HPGe detectors. The power consumption of the cold mass in the cryostat was measured to be 4.07(11) watts, sufficient for 5.5 days of continuous operation using only 8 liters of liquid nitrogen. Temperatures throughout the cryostat were measured by platinum resistance temperature detectors. These measurements were used to determine the emissivity of the copper used in the floating radiation shield and outer cryostat wall, which was constructed using chemically cleaned and passivated copper metal. Using a PNNL-developed passivation process, an emissivity of 2.5(3)% was achieved for copper.

  7. China Needs Prompt Construction of a Strong National Power Grid (Excerption)

    Institute of Scientific and Technical Information of China (English)

    Liu Zhenya

    2005-01-01

    China needs to develop a strong national power grid which takes ultra-high-voltage (UHV) transmission systems as its core. The grid is expected to adopt 1000-kV-class AC and ± 800-kV DC transmission systems. In view of significant achievements in technological research and considerable progress in UHV manufacturing technology, China is capable of developing UHV systems. In order to promote the construction of UHV systems,China Electric Power Research Institute and other institutions have initiated first-phase research activities of UHV transmission technologies. The main contents involve research on UHV transmission technology and its economy,developing and manufacturing abilities on UHV equipment, prospective of UHV network frame and selection of demonstration projects, etc.

  8. Environmental tasks of engineering geology in the construction of nuclear power installations

    Energy Technology Data Exchange (ETDEWEB)

    Hrasna, M. (Komenskeho Univ., Bratislava (Czechoslovakia). Prirodovedecka Fakulta)

    1984-01-01

    A nuclear power installation shoUld be sited in an area without large and intensive geodynamic phenomena such as seismicity, gravitation movement, subsidence, etc., an area with mineral and drinking water resources, deposits of mineral raw materials, quality farmland and protected areas. With regard to demands on the quality of foundation soil and the ground water level it will always be necessary to secure the safe foundation of buildings with possible radioactivity escape. Most such buildings are founded on a solid foundation slab. The definitive siting of the nuclear power facility should be decided upon during the project design preparation stage when most geological surveying is done. During the pre-project stage a quantitative determination is made of all characteristics of rocks on the site. Monitoring and surveillance is conducted during construction.

  9. Construction and Management of Power Supply System in Electrical Engineering%初探电气工程中供电系统的施工管理

    Institute of Scientific and Technical Information of China (English)

    何乙

    2014-01-01

    Power supply system, as an important part of el- ectric power engineering, has difficulties with construction te- chnique and high risk of construction. Therefore, we must ca- rry on the management to the power supply system instalation by using scientific, effective means to ensure the instalation quality of construction power supply system. This paper main- ly explores the effective methods of improving the instalation and construction management of power system.%供电系统作为电力工程重要的一部分,均有施工技术难度大、危险程度高更特点。所以,一定要采用科学、有效的手段对供电系统安装施工进行管理,以保证供电系统安装施工质量。本文主要探究了提升供电系统安装施工管理力度的有效方法。

  10. Environmental feasibility study for deployment and construction of mobile gas turbine power plants in urbanized areas

    Directory of Open Access Journals (Sweden)

    Bryukhan Fedor

    2017-01-01

    Full Text Available In the view of current electrical shortage in some regions of Russia, mobile gas turbine power plants (MGTPP have become urgent in recent years. Usually they are used as back-up power sources to cover peak loads in power networks and to ensure uninterrupted power supply to consumers. This paper deals with environmental feasibility study for deployment and construction of the MGTPP in an urban setting. Technogehic factors of the MGTPP impact on the environment have been assessed and possibility of the MGTPP deployment at various sites in different regions of Russia has been identified. The necessity of using the technology of water injection into the gas turbine units combustion chamber to suppress nitrogen oxides in some cases is mentioned. Quantitative assessments of the MGTPP technogehic impact on the environment components have been performed using standard techniques. The calculations have revealed that the MGTPP specifications ensure the levels of technogehic impacts within the standard limits. The results have ensured preparation of pre-design and design documentation related to protection of the environment against the MGTPP complex technogehic impact.

  11. THE IMPORTANCE OF INTEGRATING SYNCHRONOUS COMPENSATOR STATCOM IN WIND POWER PLANT CONNECTED INTO THE MEDIUM VOLTAGE GRID

    Directory of Open Access Journals (Sweden)

    BERINDE I.

    2016-03-01

    Full Text Available Integration of wind power plant in medium voltage grid is comply with the same regulations as conventional plants. To realize in the point of common coupling grid, reactive power levels as close to zero is necessary to use reactive power compensators and ensuring the compensation. Static compensators STATCOM shunt satisfy this requirement very well, by absorption / injection of reactive power from / to grid based on the voltage amplitude the point of common coupling at grid. The article presents the behavior of wind power plant, which is connected to the compensator STATCOM, on medium voltage fault and the importance using it in the wind power plant.

  12. The importance of an entomo-epidemiological monitoring in the construction of pipelines at the Amazon

    Energy Technology Data Exchange (ETDEWEB)

    Cruz, Elidianne da S.; Valgas, Luciana L.; Batista, Rita de Cassia G.; Agostini, Lucimara de; Pereira, Andreia Labrea; Freitas, Wanderleia Isabel P. de; Frade, Amadeu Farage [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil)

    2009-12-19

    This work has as objective to evidence one of the consequences of most satisfactory results, talking about attendance to the legal requirements of health on a pipeline undertake at the Amazon: a positive result of index zero of malaria cases until the present days. This work, in its peak, reached the contingent of eight thousand workers lodged in rafts, boats, carps and jungle camps. To reach this index, a methodology of prevention through an entomo epidemiological control was adopted, recommended for the World-wide Organization of Health, as basic activity for malaria control in endemic areas, as in Amazon. The activities had consisted to identify the epidemiologic profile of each area, to elaborate procedures of vectorial control, to implant laboratories for analysis of malaria blades, to enable staff to accomplishment of vectorial control, to realize thermo nebulization and domestic spread and to sensitize the workers of prevention and control measures. Therefore, by means of accomplishment of these basic actions, it was possible to assure an integral, equitable and qualitative attendance providing a critical and conscientious vision of involved and the success of the procedures adopted by PETROBRAS, represented by ENGENHARIA/IENOR (Northern Undertake Implementation), unit responsible for the pipeline Urucu-Manaus Construction. (author)

  13. Organic xenobiotics removal in constructed wetlands, with emphasis on the importance of the support matrix.

    Science.gov (United States)

    Dordio, A V; Carvalho, A J P

    2013-05-15

    Constructed wetlands (CWs) are increasingly popular as an efficient and economical alternative to conventional wastewater treatment processes for removal, among other pollutants, of organic xenobiotics. In CWs, pollutants are removed through the concerted action of their components, whose contribution can be maximized by careful selection of those components. Specifically for non-biodegradable organic pollutants, the materials used as support matrix of CWs can play a major role through sorption phenomena. In this review the role played by such materials in CWs is examined with special focus on the amount of research that has been conducted to date on their sorption properties relatively to organic compounds. Where available, the reports on the utilization of some of those materials on pilot or full-scale CWs are also recognized. Greatest interest has been directed to cheaper and widely available materials. Among these, clays are generally regarded as efficient sorbents, but materials originated from agricultural wastes have also gained recent popularity. Most available studies are lab-scale batch sorption experiments, whereas assays performed in full-scale CWs are still scarce. However, the available lab-scale data points to an interesting potential of many of these materials for experimentation as support matrix of CWs targeted for organic xenobiotics removal.

  14. Constructing (Il)Legitimate Democracy : Populism and Power Concentration in Newspaper Discourse on Venezuela

    OpenAIRE

    2014-01-01

    Despite scholarly consensus about the importance of the media for democracy, scant attention has been paid to what democracy means to journalistic discourse and how discourses on democracy are interrelated with legitimacy. The aim of this paper is to explore how (il)legitimate democracy is constructed in newspaper discourse. By using critical discourse analysis (CDA), this paper examines foreign news items about Venezuela, a country that under the presidency of Hugo Chávez has challenged the ...

  15. Transaction Costs in Constructing Small and Medium Hydro Power Plants in Albania

    Directory of Open Access Journals (Sweden)

    Florian Miti

    2015-06-01

    Full Text Available Identifying the transaction costs helps knowing which are the real costs of starting a new business, finding bottlenecks, can serve to reduce inefficiencies and encourage more effective reforms. In  this article we analyze the impact of transaction costs in interactions between firms and public authority, when firms participate in the bidding procedure for constructing new hydropower plants until the stage of producing electricity. In the first years, after granting the concession right, firms face many difficulties due to a complex normative regulation, contractual conditions and  bureaucracy. Although in the majority of the cases, winning firms are provided by the public authority with the  concessionary permit within the legal deadlines, they fail to start producing electricity within the declared  timetable. Even though direct transaction costs computed by measuring the actual costs that firms or individuals face during these procedures may be relatively low, fairly 1-2 % of the total cost of investment, opportunity costs considering the potential loss in the revenues due to delays in producing and selling electricity, in some cases,  can be equal to the total cost of constructing the implant. Keywords: transaction costs, concessions, hydro power constructing, regulation.

  16. Indigenous Peoples in UN REDD+ Negotiations: "Importing Power" and Lobbying for Rights through Discursive Interplay Management

    Directory of Open Access Journals (Sweden)

    Linda Wallbott

    2014-03-01

    Full Text Available In this article I analyze the strategies of indigenous peoples as norm entrepreneurs in UN climate negotiations. I set out a conceptual linkage between the emerging literature on institutional interaction and social constructivist agency. It is shown, against the background of a descriptive account of the development of REDD+ negotiations within the UNFCCC, that indigenous peoples have been able to influence the agenda by crafting their immaterial power resources through the transfer of knowledge resources and normative instances from distinct institutions. This strategy of "importing power" to the target institution, the UNFCCC, was accompanied by support of key individuals and favorable national governments. Furthermore, indigenous peoples' demand to have their rights considered in the REDD+ agreement resonated with more established frames of global environmental politics that focus on synergies, cost-effectiveness, and management approaches. However, further research is required to figure out argumentative dynamics within the indigenous community itself and to identify the conditions that determined the level of success of their advocacy strategies.

  17. Are the argon metastables important in high power impulse magnetron sputtering discharges?

    Energy Technology Data Exchange (ETDEWEB)

    Gudmundsson, J. T., E-mail: tumi@hi.is [Department of Space and Plasma Physics, School of Electrical Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm (Sweden); Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavik (Iceland); Lundin, D.; Minea, T. M. [Laboratoire de Physique des Gaz et Plasmas - LPGP, UMR 8578 CNRS, Université Paris-Sud, 91405 Orsay Cedex (France); Stancu, G. D. [CentraleSupélec, Grande Voie des Vignes, 92295 Chatenay-Malabry Cedex (France); CNRS, UPR 288 Laboratoire EM2C, Grande Voie des Vignes, 92295 Chatenay-Malabry Cedex (France); Brenning, N. [Department of Space and Plasma Physics, School of Electrical Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm (Sweden); Plasma and Coatings Physics Division, IFM-Materials Physics, Linköping University, SE-581 83 Linköping (Sweden)

    2015-11-15

    We use an ionization region model to explore the ionization processes in the high power impulse magnetron sputtering (HiPIMS) discharge in argon with a titanium target. In conventional dc magnetron sputtering (dcMS), stepwise ionization can be an important route for ionization of the argon gas. However, in the HiPIMS discharge stepwise ionization is found to be negligible during the breakdown phase of the HiPIMS pulse and becomes significant (but never dominating) only later in the pulse. For the sputtered species, Penning ionization can be a significant ionization mechanism in the dcMS discharges, while in the HiPIMS discharge Penning ionization is always negligible as compared to electron impact ionization. The main reasons for these differences are a higher plasma density in the HiPIMS discharge, and a higher electron temperature. Furthermore, we explore the ionization fraction and the ionized flux fraction of the sputtered vapor and compare with recent experimental work.

  18. Towards prioritizing flexibility in the design and construction of concentrating solar power plants

    DEFF Research Database (Denmark)

    Topel, Monika; Lundqvist, Mårten; Haglind, Fredrik

    2017-01-01

    In the operation and maintenance of concentrating solar power plants, high operational flexibility is required in order to withstand the variability from the inherent solar fluctuations. However, during the development phases of a solar thermal plant, this important objective is overlooked...... as a relevant factor for cost reduction in the long term. This paper will show the value of including flexibility aspects in the design of a concentrating solar power plant by breaking down their potential favorable impact on the levelized cost of electricity (LCOE) calculations. For this, three scenarios...... to include flexibility as a design objective are analyzed and their potential impact on the LCOE is quantified. The scenarios were modeled and analyzed using a techno-economic model of a direct steam generation solar tower power plant. Sensitivity studies were carried out for each scenario, in which...

  19. Construction and Power Test of the Extraction Kicker Magnet for the Spallation Neutron Source Accumulator Ring

    CERN Document Server

    Pai, Chien; Hseuh Hsiao Chaun; Meng, Wuzheng; Mi, Jian-Lin; Raparia, Deepak; Sandberg, Jon; Todd, Robert J; Tsoupas, Nicholaos; Tuozzolo, Joseph; Warburton, David S; Wei, Jie; Weiss, Daniel; Yung Lee, Yong; Zhang, Wu

    2005-01-01

    Two extraction kicker magnet assemblies that contain seven individual pulsed magnet modules each will kick the proton beam vertically out of the SNS accumulator ring into the aperture of the extraction lambertson septum magnet. The proton beam then travels to the 1.4 MW SNS target assembly. The 14 kicker magnets and major components of the kicker assembly have been fabricated in BNL. The inner surfaces of the kicker magnets were coated with TiN to reduce the secondary electron yield. All 14 PFN power supplies have been built, tested and delivered to ORNL. Before final installation, a partial assembly of the kicker system with three kicker magnets was assembled to test the functions of each critical component in the system. In this paper we report the progress of the construction of the kicker components, the TiN coating of the magnets, the installation procedure of the magnets and the full power test of the kicker with the PFN power supply.

  20. Relations between high and low power groups: the importance of legitimacy.

    Science.gov (United States)

    Hornsey, Matthew J; Spears, Russell; Cremers, Iris; Hogg, Michael A

    2003-02-01

    Using a social identity perspective, two experiments examined the effects of power and the legitimacy of power differentials on intergroup bias. In Experiment 1, 125 math-science students were led to believe that they had high or low representation in a university decision-making body relative to social-science students and that this power position was either legitimate or illegitimate. Power did not have an independent effect on bias; rather, members of both high and low power groups showed more bias when the power hierarchy was illegitimate than when it was legitimate. This effect was replicated in Experiment 2 (N = 105). In addition, Experiment 2 showed that groups located within an unfair power hierarchy expected the superordinate power body to be more discriminatory than did those who had legitimately high or low power. The results are discussed in terms of their implications for group relations.

  1. SPS microwave subsystem potential impacts and benefits. [environmental and societal effects of Solar Power System construction and operation

    Science.gov (United States)

    Dickinson, R. M.

    1978-01-01

    The paper examines the possible environmental and societal effects of the construction, installation, and operation of the space end and earth end of the microwave power transmission subsystem that delivers satellite power system (SPS) energy (at about 5 GW per beam) to the power grid on earth. The intervening propagation medium near the earth is also considered. Separate consideration is given to the spacecraft transmitting array, propagation in the ionosphere, and the ground-based rectenna. Radio frequency interference aspects are also discussed.

  2. China's rising Soft Power: the role of rhetoric in constructing China-Africa relations

    Directory of Open Access Journals (Sweden)

    Lucy Jane Corkin

    2014-01-01

    Full Text Available As China turns increasingly to the cultivation of soft power in the course of developing its foreign policy, the use of political rhetoric and its explicit and implicit audiences become more and more important, both on a bilateral level and within the international arena at large. Using the case of China's relations with African countries, this article examines key themes within China's diplomatic narrative regarding its role on the African continent and contrasts with Western and African responses.

  3. A Contemporary Analysis of the O'Neill-Glaser Model for Space-Based Solar Power and Habitat Construction

    Science.gov (United States)

    Curreri, Peter A.; Detweiler, Michael K.

    2011-01-01

    In 1975 Gerard O Neill published in the journal Science a model for the construction of solar power satellites. He found that the solar power satellites suggested by Peter Glaser would be too massive to launch economically from Earth, but could be financially viable if the workforce was permanently located in free space habitats and if lunar and asteroid materials were used for construction. All new worldwide electrical generating capacity could be then achieved by solar power satellites. The project would financially break even in about 20 years after which it would generate substantial income selling power below fossil fuel prices. Two NASA / Stanford University led studies at Ames Research center during the summers of 1974 and 1976 found the concept technically sound and developed a detailed financial parametric model. Although the project was not undertaken when suggested in the 1970s, several contemporary issues make pursuing the O Neill -- Glaser concept more compelling today. First, our analysis suggests that if in the first ten years of construction that small habitats (compared to the large vista habitats envisioned by O Neill) supporting approximately 300 people were utilized, development costs of the program and the time for financial break even could be substantially improved. Second, the contemporary consensus is developing that carbon free energy is required to mitigate global climate change. It is estimated that 300 GW of new carbon free energy would be necessary per year to stabilize global atmospheric carbon. This is about 4 times greater energy demand than was considered by the O Neill Glaser model. Our analysis suggests that after the initial investments in lunar mining and space manufacturing and transportation, that the profit margin for producing space solar power is very high (even when selling power below fossil fuel prices). We have investigated the financial scaling of ground launched versus space derived space solar power satellites. We

  4. Implementation of Case-Based Reasoning System for Knowledge Management of Power Plant Construction Projects in a Korean Company

    Science.gov (United States)

    Jang, Gil-Sang

    Recently, plant construction industries are enjoying a favorable business climate centering around developing countries and oil producing countries rich in oil money. This paper proposes a methodology of implementing corporation-wide case-based reasoning (CBR) system for effectively managing lessons learned knowledge like experiences and know-how obtained in performing power plant construction projects. Our methodology is consisted of 10 steps: user requirement analysis, information modeling, case modeling, case base design, similarity function design, user interface design, case base building, CBR module development, user interface development, integration test. Also, to illustrate the usability of proposed methodology, the practical CBR system is implemented for the plant construction business division of ’H’ company which has international competitiveness in the field of plant construction industry. At present, our CBR system is successfully utilizing as storing, sharing, and reusing the knowledge which is accumulated in performing power plant construction projects in the target enterprise.

  5. 电力建设基建工程的施工管理分析%Electric Power Construction Management Analysis of Infrastructure Projects

    Institute of Scientific and Technical Information of China (English)

    马立斌

    2014-01-01

    Good construction management work, are important to maintaining the corporate image, enhance corporate reputation, and to improve their market competitiveness. Construction management work around the construction of infrastructure projects to expand electricity discusses and summarizes the main issues of power construction of infrastructure construction management in present and proposed to strengthen the construction of infrastructure projects in the power management advice.%做好施工管理工作,对维护企业形象,提高企业信誉,进而提高企业的市场竞争力有重要意义。围绕电力建设基建工程的施工管理工作展开论述,总结了当前电力建设基建工程施工管理中存在的主要问题,并提出了加强电力建设基建工程管理的建议。

  6. A heuristic nonlinear constructive method for electric power distribution system reconfiguration

    Science.gov (United States)

    McDermott, Thomas E.

    1998-12-01

    The electric power distribution system usually operates in a radial configuration, with tie switches between circuits to provide alternate feeds. The losses would be minimized if all switches were closed, but this is not done because it complicates the system's protection against overcurrents. Whenever a component fails, some of the switches must be operated to restore power to as many customers as possible. As loads vary with time, switch operations may reduce losses in the system. Both of these are applications for reconfiguration. The problem is combinatorial, which precludes algorithms that guarantee a global optimum. Most existing reconfiguration algorithms fall into two categories. In the first, branch exchange, the system operates in a feasible radial configuration and the algorithm opens and closes candidate switches in pairs. In the second, loop cutting, the system is completely meshed and the algorithm opens candidate switches to reach a feasible radial configuration. Reconfiguration algorithms based on linearized transshipment, neural networks, heuristics, genetic algorithms, and simulated annealing have also been reported, but not widely used. These existing reconfiguration algorithms work with a simplified model of the power system, and they handle voltage and current constraints approximately, if at all. The algorithm described here is a constructive method, using a full nonlinear power system model that accurately handles constraints. The system starts with all switches open and all failed components isolated. An optional network power flow provides a lower bound on the losses. Then the algorithm closes one switch at a time to minimize the increase in a merit figure, which is the real loss divided by the apparent load served. The merit figure increases with each switch closing. This principle, called discrete ascent optimal programming (DAOP), has been applied to other power system problems, including economic dispatch and phase balancing. For

  7. Wind Power predictability a risk factor in the design, construction and operation of Wind Generation Turbines

    Science.gov (United States)

    Thiesen, J.; Gulstad, L.; Ristic, I.; Maric, T.

    2010-09-01

    Summit: The wind power predictability is often a forgotten decision and planning factor for most major wind parks, both onshore and offshore. The results of the predictability are presented after having examined a number of European offshore and offshore parks power predictability by using three(3) mesoscale model IRIE_GFS and IRIE_EC and WRF. Full description: It is well known that the potential wind production is changing with latitude and complexity in terrain, but how big are the changes in the predictability and the economic impacts on a project? The concept of meteorological predictability has hitherto to some degree been neglected as a risk factor in the design, construction and operation of wind power plants. Wind power plants are generally built in places where the wind resources are high, but these are often also sites where the predictability of the wind and other weather parameters is comparatively low. This presentation addresses the question of whether higher predictability can outweigh lower average wind speeds with regard to the overall economy of a wind power project. Low predictability also tends to reduce the value of the energy produced. If it is difficult to forecast the wind on a site, it will also be difficult to predict the power production. This, in turn, leads to increased balance costs and a less reduced carbon emission from the renewable source. By investigating the output from three(3) mesoscale models IRIE and WRF, using ECMWF and GFS as boundary data over a forecasting period of 3 months for 25 offshore and onshore wind parks in Europe, the predictability are mapped. Three operational mesoscale models with two different boundary data have been chosen in order to eliminate the uncertainty with one mesoscale model. All mesoscale models are running in a 10 km horizontal resolution. The model output are converted into "day a head" wind turbine generation forecasts by using a well proven advanced physical wind power model. The power models

  8. Power Analysis in Survey Research: Importance and Use for Health Educators

    Science.gov (United States)

    Price, James H.; Dake, Joseph A.; Murnan, Judy; Dimmig, Jaime; Akpanudo, Sutoidem

    2005-01-01

    This article has three purposes: to explain the two different uses of power analysis that can be used in health education research; to examine the extent to which power analysis is being used in published health education research; and to explain the implications of not using power analysis in research studies. Articles in seven leading health…

  9. Construction

    Science.gov (United States)

    2002-01-01

    Harbor Deepening Project, Jacksonville, FL Palm Valley Bridge Project, Jacksonville, FL Rotary Club of San Juan, San Juan, PR Tren Urbano Subway...David. What is nanotechnology? What are its implications for construction?, Foresight/CRISP Workshop on Nanotechnology, Royal Society of Arts

  10. Coccidioidomycosis among Workers Constructing Solar Power Farms, California, USA, 2011-2014.

    Science.gov (United States)

    Wilken, Jason A; Sondermeyer, Gail; Shusterman, Dennis; McNary, Jennifer; Vugia, Duc J; McDowell, Ann; Borenstein, Penny; Gilliss, Debra; Ancock, Benedict; Prudhomme, Janice; Gold, Deborah; Windham, Gayle C; Lee, Lauren; Materna, Barbara L

    2015-11-01

    Coccidioidomycosis is associated with soil-disruptive work in Coccidioides-endemic areas of the southwestern United States. Among 3,572 workers constructing 2 solar power-generating facilities in San Luis Obispo County, California, USA, we identified 44 patients with symptom onset during October 2011-April 2014 (attack rate 1.2 cases/100 workers). Of these 44 patients, 20 resided in California outside San Luis Obispo County and 10 resided in another state; 9 were hospitalized (median 3 days), 34 missed work (median 22 days), and 2 had disseminated disease. Of the 25 patients who frequently performed soil-disruptive work, 6 reported frequent use of respiratory protection. As solar farm construction in Coccidioides-endemic areas increases, additional workers will probably be exposed and infected unless awareness is emphasized and effective exposure reduction measures implemented, including limiting dust generation and providing respiratory protection. Medical providers, including those in non-Coccidioides-endemic areas, should suspect coccidioidomycosis in workers with compatible illness and report cases to their local health department.

  11. THE SIGNIFICANCE OF STRUCTURAL AND GEOLOGICAL RELATIONSHIP ASSESSMENT IN THE CONSTRUCTION OF THE OMBLA UNDERGROUND HYDROELECTRIC POWER PLANT

    Directory of Open Access Journals (Sweden)

    Renato Buljan

    1997-12-01

    Full Text Available The construction design of the underground hydroelectric plant Ombla required geological and structural investigations to he carried out. Due to past earthquakes in the area permanent tectonic movements were inferred. Therefore, in the wider and adjacent surroundings of the Ombla spring it was necessary to analyze the structural fabric and the geodynamic characteristics of the area. The most active zone encountered is the front part of a thrust fault belonging to the Dinaricum regional structural unit. The compressive regime is maintained as a response to the regional stress of an approximately S-N orientation. Different displacements of various parts of the Dinaricum unit are present. Along the rim of the structural blocks, the Hum-Om-bla fault zone extends, accompanied by left transcurrent faults, Through this zone the main groundwater drainage occurs supplying the Ombla spring. In the local Ombla spring area this zone is characterized by three sub-blocks and three major faults. The most important fault for the vital facilities of the Ombla hydroelectric power plant is the Pločice fault which divides the structural sub-blocks. Along this fault zone there are four mutually connected. The lowest two arc active groundwater draining systems supplying the Ombla spring. The data on local stress implies the following deformation of sub-blocks: sub-blocks 2c and 2f are displaced along normal faults from 20° to 30° to the left, downwards, while the sub-block 2 d is displaced along the Pločice thrust fault of 100° to 130° to the left, upwards. The structural data confirmed that the building of an underground dam with a height from 100 to 130 m was feasible. The connection between the caverns and the fault zone was determined. The unfavorable position of the active Pločice fault zone imposes the construction of vital Ombla power plant facilities underground.

  12. The competition in the electric power market: an institutional complex construction; A competicao no mercado eletrico: uma complexa construcao institucional

    Energy Technology Data Exchange (ETDEWEB)

    Bicalho, Ronaldo

    2007-07-01

    This analysis take into consideration the following aspects: the introduction of competition in the electric power market; the ideal and the real in electric power sector; the trade-off between competition and coordination; the specificities of the commodity electric power and his demand; the electric power - a contract market; a special future market - the electric power market; the bilateral relationship in the electric power market; non-stockpile of the commodity; volatile characteristic of the commodity: interdependency of the agents and volatile characteristic; volatile characteristics and institutions; the electric power market - an institutional construction; the risks management and a competition in a market of very particular commodity; competition, autonomy, and exceeding capacity; the reformulation diversity; and the reformulation future.

  13. Relations between high and low power groups : The importance of legitimacy

    NARCIS (Netherlands)

    Hornsey, MJ; Spears, R; Cremers, M.; Hogg, MA

    2003-01-01

    Using a social identity perspective, two experiments examined the effects of power and the legitimacy of power differentials on intergroup bias. In Experiment 1, 125 math-science students were led to believe that they had high or low representation in a university decision-making body relative to so

  14. Muscle power is an important measure to detect deficits in muscle function in hip osteoarthritis

    DEFF Research Database (Denmark)

    Bieler, Theresa; Magnusson, Stig Peter; Christensen, Helle Elisabeth;

    2016-01-01

    : The symptomatic extremity in patients was significantly (p extremity for five hip muscles (8-17%), knee extensors (11%) and leg extensor power (19%). Healthy older adults had asymmetry in knee extensor strength (6%, p ... in patients, but had no asymmetry in leg extensor power. CONCLUSIONS: Patients had generalized weakening of the affected lower extremity and numerically the largest asymmetry was evident for leg extensor power. In contrast, healthy peers had no asymmetry in leg extensor power. These results indicate...... that exercise interventions focusing on improving leg extensor power of the symptomatic lower extremity and reducing asymmetry may be beneficial for patients with hip osteoarthritis. Implications for Rehabilitation Even in patients with mild symptoms not awaiting hip replacement a generalized muscle weakening...

  15. Security during the Construction of New Nuclear Power Plants: Technical Basis for Access Authorization and Fitness-For-Duty Requirements

    Energy Technology Data Exchange (ETDEWEB)

    Branch, Kristi M.; Baker, Kathryn A.

    2009-09-01

    A technical letter report to the NRC summarizing the findings of a benchmarking study, literature review, and workshop with experts on current industry standards and expert judgments about needs for security during the construction phase of critical infrastructure facilities in the post-September 11 U.S. context, with a special focus on the construction phase of nuclear power plants and personnel security measures.

  16. Design and construction of Aratani hydroelectric power plant; Aratani suiryoku hatsudensho no sekkei to seko

    Energy Technology Data Exchange (ETDEWEB)

    Kishimoto, S.; Taniuchi, N.; Shoji, I. [Kansai Electric Power Co. Inc., Osaka (Japan)

    1998-09-05

    The power plant of Kansai Electric Power Co., Inc., is a run-off-river type with an available head of 273.6m, a maximum discharge of 5.0m{sup 3}/s, and a maximum output of 11,200kW, and is scheduled to come into service in 1998. The design dispenses with the spillway for reduction in construction cost. The surrounding geological conditions are quite hostile with many active faults. As for the area through which the water channel tunnel runs through, there is a valley named Nara that is a tectonic boundary, located a little upstream of the tunnel middle point. It was afraid there would be water gushing out because the soil cover is so thin as 60m along the boundary making the natural ground itself fragile. A CSA-MT (controlled-source audio-frequency magnetotelluric) exploration was conducted for predicting the volume to gush out and the result was found to agree excellently with the observed value, and the work went on with water draining borings performed as necessity. NATM (New Australian Tunnelling Method) was applied for excavation, and work type C-1, somewhere between work types C and D, was selected out of four work types A, B, C, and D, from the viewpoint of cost performance. Types A and B applicable to hard geological structures occupied only 1% in the whole process of excavation. Although the scheduled monthly progress of 130m was reduced to 100m due to difficulties caused by freshets and crushed fault zones, the tunnel was completed at the end of 1997. 4 refs., 10 figs., 4 tabs.

  17. СALCULATION OF INDIVIDUAL TECHNOLOGICAL NORMS PERTAINING TO EXPENDITURE OF FUEL AND POWER RESOURCES IN CONSTRUCTION INDUSTRY

    OpenAIRE

    A. A. Lozovsky; G. V. Zemliakov

    2011-01-01

    The paper considers private methods for calculation of individual technological norms pertaining to expenditure of fuel and power resources in  respect of main types of construction and installation works and technological processes whish are executed with the help of various machines, mechanisms, technological equipment etc. Analytical expressions that take into account various factors influencing on the power consumption level are presented in the paper.

  18. СALCULATION OF INDIVIDUAL TECHNOLOGICAL NORMS PERTAINING TO EXPENDITURE OF FUEL AND POWER RESOURCES IN CONSTRUCTION INDUSTRY

    Directory of Open Access Journals (Sweden)

    A. A. Lozovsky

    2011-01-01

    Full Text Available The paper considers private methods for calculation of individual technological norms pertaining to expenditure of fuel and power resources in  respect of main types of construction and installation works and technological processes whish are executed with the help of various machines, mechanisms, technological equipment etc. Analytical expressions that take into account various factors influencing on the power consumption level are presented in the paper.

  19. Theoretical and practical equivalents in multimachine power systems. Part 1: Construction of coherency power systems. Part 1: Construction of coherency based theoretical equivalent

    Energy Technology Data Exchange (ETDEWEB)

    Di Caprio, U.

    1982-10-01

    Taking account of the structural conditions for theoretical coherency, a single machine equivalent circuit is determined. This is an extension of the Thevenin theorem to electromechanic circuits and will be used as the basis for constructing a practical dynamic equivalent in the second part of the paper.

  20. Managerial conflict management in five European countries : The importance of power distance, uncertainty avoidance, and masculinity

    NARCIS (Netherlands)

    Van Oudenhoven, J.P.; Mechelse, L.; De Dreu, C.K.W.

    This research deals with managerial conflict management in Denmark, United Kingdom, The Netherlands, Spain, and Belgium. According to Hofstede (1991). these countries' cultures differ primarily in terms of uncertainty avoidance, power distance, and masculinity-femininity. The differences in

  1. Managerial conflict management in five European countries : The importance of power distance, uncertainty avoidance, and masculinity

    NARCIS (Netherlands)

    van Oudenhoven, JP; Mechelse, L; de Dreu, CKW

    1998-01-01

    This research deals with managerial conflict management in Denmark, United Kingdom, The Netherlands, Spain, and Belgium. According to Hofstede (1991). these countries' cultures differ primarily in terms of uncertainty avoidance, power distance, and masculinity-femininity. The differences in uncertai

  2. Intertied ac–ac microgrids with autonomous power import and export

    DEFF Research Database (Denmark)

    Nutkani, Inam Ullah; Loh, Poh Chiang; Wang, Peng

    2015-01-01

    Intertied ac–ac microgrids offer many potential benefits like flexible frequency and voltage selection, reserve sharing and enhanced supply reliability. Operating them is however challenging due to their larger size and presence of more power converters with different responsibilities. These comp......Intertied ac–ac microgrids offer many potential benefits like flexible frequency and voltage selection, reserve sharing and enhanced supply reliability. Operating them is however challenging due to their larger size and presence of more power converters with different responsibilities...

  3. Important Property of GRB Pulse: Power-Law Indices of Time Properties on Energy

    Indian Academy of Sciences (India)

    Zhao-Yang Peng

    2014-09-01

    The dependence of pulse temporal properties (pulse width, pulse rise width and pulse decay width) on energy is power-law function. Some correlated relationships between the power-law indices of the pulse time properties on energy and the spectral lags, relative spectral lags, spectral parameters of band function, and photon flux using a well-separated long-duration -ray burst (GRB) pulse sample is demonstrated here. We argue that the curvature effect can explain the correlated properties.

  4. The increasing importance of power electronics; Die wachsende Bedeutung der Leistungselektronik. Stromerzeugung, -uebertragung und Stromverteilung sind heute ohne Silizium kaum denkbar

    Energy Technology Data Exchange (ETDEWEB)

    Baumberger, H.; Steimer, P. [ABB Schweiz AG, Turgi (Switzerland)

    2010-07-01

    This article takes a look at the importance today of silicon in power generation, power transmission and power distribution. Also, the importance of this semiconductor as an important component in systems that can increase the efficiency of power use is discussed. Various requirements placed on power electronics are examined, both in the areas of control and protection. The cooling required by such high-power semiconductors and the possibilities of realising it are discussed. Their use in the power generation area, for instance in wind power, photovoltaics and tidal power stations is reviewed, as are applications in pump-storage power stations. Along with power transmission applications, reactive power and energy storage applications are discussed. The article is rounded off with a review of the use of power electronics in consumer and industrial applications such as variable speed drives, mains voltage stabilisation and uninterruptible power supplies.

  5. PAHs in leachates from thermal power plant wastes and ash-based construction materials.

    Science.gov (United States)

    Irha, Natalya; Reinik, Janek; Jefimova, Jekaterina; Koroljova, Arina; Raado, Lembi-Merike; Hain, Tiina; Uibu, Mai; Kuusik, Rein

    2015-08-01

    The focus of the current study is to characterise the leaching behaviour of polycyclic aromatic hydrocarbons (PAHs) from oil shale ashes (OSAs) of pulverised firing (PF) and circulating fluidised-bed (CFB) boilers from Estonian Thermal Power Plant (Estonia) as well as from mortars and concrete based on OSAs. The target substances were 16 PAHs from the EPA priority pollutant list. OSA samples and OSA-based mortars were tested for leaching, according to European standard EN 12457-2 (2002). European standard CEN/TC 15862(2012) for monolithic matter was used for OSA-based concrete. Water extracts were analysed by GC-MS for the concentration of PAHs. Naphthalene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene and pyrene were detected. Still, the release of PAHs was below the threshold limit value for inert waste. The amount of the finest fraction (particle size <0.045 mm), the content of the Al-Si glass phase and the surface characteristics were the main factors, which could affect the accessibility of PAHs for leaching. The mobility of PAHs from OSA of CFB and PF boilers was 20.2 and 9.9%, respectively. Hardening of OSA-based materials did not lead to the immobilisation of soluble PAHs. Release of PAHs from the monolith samples did not exceed 0.5 μg/m(2). In terms of leaching of PAHs, OSA is safe to be used for construction purposes.

  6. Prediction of concrete compressive strength considering humidity and temperature in the construction of nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Kwon, Seung Hee; Jang, Kyung Pil [Department of Civil and Environmental Engineering, Myongji University, Yongin (Korea, Republic of); Bang, Jin-Wook [Department of Civil Engineering, Chungnam National University, Daejeon (Korea, Republic of); Lee, Jang Hwa [Structural Engineering Research Division, Korea Institute of Construction Technology (Korea, Republic of); Kim, Yun Yong, E-mail: yunkim@cnu.ac.kr [Structural Engineering Research Division, Korea Institute of Construction Technology (Korea, Republic of)

    2014-08-15

    Highlights: • Compressive strength tests for three concrete mixes were performed. • The parameters of the humidity-adjusted maturity function were determined. • Strength can be predicted considering temperature and relative humidity. - Abstract: This study proposes a method for predicting compressive strength developments in the early ages of concretes used in the construction of nuclear power plants. Three representative mixes with strengths of 6000 psi (41.4 MPa), 4500 psi (31.0 MPa), and 4000 psi (27.6 MPa) were selected and tested under various curing conditions; the temperature ranged from 10 to 40 °C, and the relative humidity from 40 to 100%. In order to consider not only the effect of the temperature but also that of humidity, an existing model, i.e. the humidity-adjusted maturity function, was adopted and the parameters used in the function were determined from the test results. A series of tests were also performed in the curing condition of a variable temperature and constant humidity, and a comparison between the measured and predicted strengths were made for the verification.

  7. NEW APPROACHES TO FORMATION OF THE ORGANIZATIONAL STRUCTURE AND PLANNING IN THE CONSTRUCTION OF POWER PLANTS

    Directory of Open Access Journals (Sweden)

    Sborshchikov Sergey Borisovich

    2012-12-01

    Full Text Available The authors argue that the cluster-based power generation industry has a complex organizational structure. The elements of this structure must be responsive to advanced technologies and improved problem solving methods. The cluster-shaped structure makes it possible for small market players to make their contributions and to be successful in the market. Any organization, regardless of its size, can be highly effective if it employs advanced technologies and offers unique products. High efficiency of companies depends on the optimized use of limited resources. The basis of efficiency consists in the "proper planning", or clarity, understandability, changeability and controllability. Attainment of the above objective of high quality planning and control requires development of a detailed road map to mitigate errors and unconsidered collapses at the project development stage. Today the information-based model of a building and multi-dimensional design patterns make it possible to attain the major portion of objectives throughout the life cycle of any construction facility. This complex approach provides new opportunities in the use of information and makes it possible to project consumption of resources in respect of each process and the whole project. It ensures accurate project budgeting and timing with account for the restrictions imposed in the course of the project development and implementation.

  8. THE IMPORTANCE OF HOUSING CONSTRUCTION EXPERIENCE IN THE USSR AS MEANS OF FORMING HUMANITARIAN SPACE FOR PRESENT-DAY RUSSIA

    Directory of Open Access Journals (Sweden)

    Golomazova Tamara Nikolaevna

    2015-06-01

    Full Text Available Today the current task of the social policy of Russia is solution of the housing problem. In Russia today there is a lack of housing, especially modern housing of good quality. In the article the experience of mass housing construction in the USSR is considered. The reasons of housing crisis in the USSR and the ways of its overcome, which were offered in the 60—80th of the 20th century are analyzed. The author pays special attention to the positive component of the experience of overcoming the housing crisis, but also its disadvantages are underlined. The author believes, that in future specialists we should form not only a knowledge of housing construction experience in the USSR, but the understanding of the importance of this experience and opportunity to use it in the contemporary Russian conditions. The author points out, what exactly can be used to solve the housing problem of present-day Russia basing on this experience.

  9. 构建中国国家软实力的战略思考%Strategic Thinking of China's Soft Power Construction

    Institute of Scientific and Technical Information of China (English)

    苏晓; 彭云峰

    2012-01-01

    软实力概念的提出始于美国学者约瑟夫·奈。近年来,软实力的构建已越来越为世界各国所重视,软实力也逐渐成为国际竞争中的重要内容和重要手段。本文以软实力概念的分析为基础,指出了中美两国在国家软实力构建过程中的三大差异,进而提出内外兼修构建中国国家软实力的观点,并明确了中国在构建国家软实力过程中应注意的三个原则,以期对构建中国国家软实力有所助益。%The concept of soft power was proposed by an American scholar, Joseph Nye. In recent years, many countries are paying more and more attention to the construction of soft power - an increasingly important part and means in international competition. Based on an analysis of soft power, the paper illustrates three major differences between China and America in the process of soft power building, proposes inner and outer construction of China's soft power, and highlights the three principles that call for special attention in the nation's soft power construction.

  10. THE PERCEPTIONS OF DEVELOPERS, CONSULTANTS AND CONTRACTORS ON THE RELATIVE IMPORTANCE OF PARTNERING IN MALAYSIAN CONSTRUCTION INDUSTRY

    Directory of Open Access Journals (Sweden)

    ABDELNASR OMRAN,

    2011-04-01

    Full Text Available Partnering is a cooperative approach to project management that recognizes the importance of all members of the project team, established harmonious working relationships among them, and resolves issues in a timely manner, minimizing impact on project execution. This paper was assessed the perceptions of developers, consultants and contractors on the relative importance of partnering in Malaysian construction industry. This was done by first identifying the problem and objectives of the research through a thorough literature reviewbased on reliable sources, followed by a comprehensive quantitative data collection through questionnaire surveys. The data was then processed using descriptive analysis to tie up with the objectives, followed by formulating of conclusions. The research revealed that, majority of the respondents agreed that, partnering project is a cost effective and it produces a good quality. In addition, the respondents have also agreed that sharing resources, team development, conducting regular meetings and also assessment of all the partners’ performance are important in setting up a partnering relationship.

  11. Importance of muscle power variables in repeated and single sprint performance in soccer players.

    Science.gov (United States)

    López-Segovia, Manuel; Dellal, Alexandre; Chamari, Karim; González-Badillo, Juan José

    2014-03-27

    This study examined the relationship between lower body power and repeated as well as single sprint performance in soccer players. The performance of nineteen male soccer players was examined. The first testing session included the countermovement jump (CMJL) and the progressive full squat (FSL), both with external loads. Power in the CMJL and FSL was measured with each load that was lifted. The second session included a protocol of 40-m repeated sprints with a long recovery period (2 min). The number of sprints executed until there was a 3% decrease in performance for the best 40-m sprint time was recorded as a repeated sprint index (RSI). The RSI was moderately associated with power output relative to body mass in the CMJL and FSL (r = 0.53/0.54, p ≤ 0.05). The most and least powerful players (determined by FSL) showed significant differences in the RSI (9.1 ± 4.2 vs. 6.5 ± 1.6) and 10 m sprint time (p ± 0.01). Repeated and single sprints are associated with relatively lower body power in soccer players.

  12. Military Curricula for Vocational & Technical Education. Construction Electrician/Power and Communications Cable Splicing, 5-3.

    Science.gov (United States)

    Ohio State Univ., Columbus. National Center for Research in Vocational Education.

    This curriculum outline, instructor's guide, and student's guide for a secondary-postsecondary-level course in construction electrician/power and communications cable splicing are one of a number of military-developed curriculum packages developed for adaptation to vocational instruction and curriculum development in a civilian setting. Purpose…

  13. Derivative pipelines in the power plant construction. Fiberglass and steel in cooperation; Triebwasserleitungen im Kraftwerksbau. GFK und Stahl in Teamarbeit

    Energy Technology Data Exchange (ETDEWEB)

    Bissinger, Karl

    2010-07-01

    Nowhere, higher technical demands on water pipelines under pressure are met at the construction of hydroelectric power plants. In practice, increasingly optimized combinations of the materials fiberglass and steel have been proven. Particular experiences with the implementation of these concepts have been made in Austria and Switzerland. Under this aspect, the author of the contribution under consideration reports on recent projects from the Alps.

  14. Consensus-Based Course Design and Implementation of Constructive Alignment Theory in a Power System Analysis Course

    Science.gov (United States)

    Vanfretti, Luigi; Farrokhabadi, Mostafa

    2015-01-01

    This article presents the implementation of the constructive alignment theory (CAT) in a power system analysis course through a consensus-based course design process. The consensus-based design process involves both the instructor and graduate-level students and it aims to develop the CAT framework in a holistic manner with the goal of including…

  15. 76 FR 8383 - Office of New Reactors; Interim Staff Guidance on Impacts of Construction of New Nuclear Power...

    Science.gov (United States)

    2011-02-14

    ... Staff Guidance (ISG) COL-ISG-022 entitled ``Impacts of Construction of ] New Nuclear Power Plants on... (COL) applicant compliance with the requirements of Title 10 of the Code of Federal Regulations, Section 52.79(a)(31) (10 CFR 52.79(a)(31)). This regulation requires applicants for a COL intending...

  16. Optimism Reborn. Nicaragua's Participative Education Revolution, the Citizen Power Development Model and the Construction of "21st Century Socialism"

    Science.gov (United States)

    Muhr, Thomas

    2013-01-01

    This paper explores Nicaragua's Participative Education Revolution and the Citizen Power national development model in the construction of socialism in the 21st century in Latin America and the Caribbean through the Bolivarian Alliance for the Peoples of Our America--Peoples' Trade Agreement. Centred around the notion of "revolutionary…

  17. Integration of renewable energies and nuclear power into North African Energy Systems: An analysis of energy import and export effects

    Energy Technology Data Exchange (ETDEWEB)

    Supersberger, Nikolaus, E-mail: nikolaus.supersberger@giz.de [Wuppertal Institute for Climate, Environment, Energy, P.O. Box 10 04 80, 42004 Wuppertal (Germany); Fuehrer, Laura, E-mail: laura.fuhrer@sciences-po.org [Sciences Po Paris, College Universitaire, Campus de Menton, du College Chemin du College, 06500 Menton (France)

    2011-08-15

    The North African countries Morocco, Algeria, Tunisia, Libya and Egypt have been and are currently experiencing rapid growth in energy demand. This development confronts their political leaders with the question of how to expand or diversify their countries' generation capacities. In this context, renewable energies and nuclear power constitute options that have rarely been exploited so far in the region. This article analyzes the drawbacks and benefits of both alternatives, with a special focus on import and export dynamics. When attempting to make the strategic decision between renewables and atomic power, North African regional specifics and circumstances have to be taken into account. Hence, in a first step, the article characterizes the energy systems of the North African countries and presents scenarios for their future development. In a second step, it scrutinizes the energy challenges these states face in terms of domestic concerns and foreign affairs. Finally, a case study of Algeria is used to demonstrate how renewable energies, but not nuclear power, are able to respond to North African energy challenges. - Research Highlights: > Using nuclear power would require fuel imports over the entire operation time. > Hence, energy exporters (Algeria, Libya) would become dependent on fuel imports. > Renewable energies can make North African countries less fuel import dependent. > Nuclear technologies would have to be imported over the whole life cycle of plants. > Domestic production for renewables technologies could be established after a first phase of technology imports.

  18. Efficiency Evaluation of Construction of Steam-Turbine Power Plants at Industrial Enterprises

    Directory of Open Access Journals (Sweden)

    A. L. Starzhinsky

    2007-01-01

    Full Text Available It is shown that application of own power stations at an industrial enterprise is considered as an expedient one if there is an availability of thermal power sources because value of an optimization criterion exceeds corresponding optimization criterion by 2.1-4.6 fold when an enterprise is supplied with power only from power system networks.

  19. Computer Program Application Study for Newly Constructed Fossil Power Plant Performance Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Hyun; Park, Jong Jeng [Korea Electric Power Research Institute, Taejon (Korea, Republic of)

    1996-12-31

    The power plant is affected in its availability and economy significantly by the equipment degraded gradually as operation continues, which makes it quite important to evaluate the plant performance more accurately and analyze its effects to the plant economy quantitatively. The methodology thereof includes many calculation steps and requires huge man hours and efforts but would produce relatively less precise results than desired. The object of the project first aims to figure out a methodology which can analyze numerically the inherent effects of each equipment on the cycle performance as well as its performance evaluation and which further helps to determine more reasonable investment for the effective plant economy. Another aspect of the project results in the implementation of the methodology which is embodied in the sophisticated computer programs based on the conventional personal computer with the interactive graphic user interface facilities. (author). 44 refs., figs.

  20. Importance of composite parameters in enhanced power conversion efficiency of Terfenol-D/PZT magnetoelectric gyrators

    Science.gov (United States)

    Leung, Chung Ming; Zhuang, Xin; Xu, Junran; Li, Jiefang; Srinivasan, G.; Viehland, D.

    2017-03-01

    A gyrator that is capable of current-to-voltage conversion can be realized with a magnetoelectric (ME) composite of ferromagnetic and ferroelectric phases placed in a coil. Here, we report the dependence of the power conversion efficiency (PE) on the relative thickness of the two ferroic phases in a gyrator of Terfenol-D and PZT. Both experimental and theoretical results on PE as a function of composite parameters, such as thickness ratio of the ferroic layers (n), magnetic field bias (HBias) and several gyrator parameters, such as the resistance load (RL), were discussed. By decreasing the thickness ratio of Terfenol-D to composite (n = 0.28) in coil-ME gyrators, a high power efficiency of 73.9% was found at a fundamental resonance frequency of 72.5 kHz under a HBias of 1000 Oe and RL = 2.6 kΩ in experiments. At the same time, the non-linear mechanical loss was reduced by decreasing the value of n which resulted in a flat response over a wide HBias range. This improved power efficiency promises ME gyrators for power transfer devices.

  1. Importance weighting and andness control in De Morgan dual power means and OWA operators

    DEFF Research Database (Denmark)

    Larsen, Henrik Legind

    2012-01-01

    and implicative, are proposed and discussed. The purpose of this paper is to facilitate the choice and application of such operators through providing a systematization of their classes according to their behavior and equipping some classical averaging operators, namely the Power Means and the OWA operators...

  2. The importance of the cosmic web and halo substructure for power spectra

    CERN Document Server

    Pace, Francesco; Bacon, David J; Crittenden, Robert; Percival, Will J

    2015-01-01

    In this work we study the relevance of the cosmic web and substructures on the matter and lensing power spectra measured from halo mock catalogues extracted from the N-body simulations. Since N-body simulations are computationally expensive, it is common to use faster methods that approximate the dark matter field as a set of halos. In this approximation, we replace mass concentrations in N-body simulations by a spherically symmetric Navarro-Frenk-White halo density profile. We also consider the full mass field as the sum of two distinct fields: dark matter halos ($M>9\\times 10^{12}~M_{\\odot}$/h) and particles not included into halos. Mock halos reproduce well the matter power spectrum, but underestimate the lensing power spectrum on large and small scales. For sources at $z_{\\rm s}=1$ the lensing power spectrum is underestimated by up to 40% at $\\ell\\approx 10^4$ with respect to the simulated halos. The large scale effect can be alleviated by combining the mock catalogue with the dark matter distribution out...

  3. Comparison of Different Internal Dosimetry Systems for Selected Radionuclides Important to Nuclear Power Production

    Energy Technology Data Exchange (ETDEWEB)

    Leggett, Richard Wayne [ORNL; Eckerman, Keith F [ORNL; Manger, Ryan P [ORNL

    2013-08-01

    This report compares three different radiation dosimetry systems currently applied by various U.S. Federal agencies and dose estimates based on these three dosimetry systems for a set of radionuclides often identified in power reactor effluents. These dosimetry systems were developed and applied by the International Commission on Radiological Protection at different times over the past six decades. Two primary modes of intake of radionuclides are addressed: ingestion in drinking water and inhalation. Estimated doses to individual organs and to the whole body based on each dosimetry system are compared for each of four age groups: infant, child, teenager, and adult. Substantial differences between dosimetry systems in estimated dose per unit intake are found for some individual radionuclides, but differences in estimated dose per unit intake generally are modest for mixtures of radionuclides typically found in nuclear power plant effluents.

  4. Power plant pipeline construction: Task and work organisation in the construction of power plant pipelines; Auftragsabwicklung und Montageorganisation bei der Realisierung von Kraftwerksrohrleitungen

    Energy Technology Data Exchange (ETDEWEB)

    Reuter, G.; Buttler, U.; Schwarzwalder, H. [vom hagen mce, Bochum (Germany)

    2000-07-01

    In pipeline construction, the supplier is hampered in his planning by the tasks to be carried out by the customer and/or other suppiers. In consequence, careful organisation and the use of the proper methods and means are required. The contribution discusses the organisation of task management in general and the planning instruments used at vom hagen mce in particular. [German] Bei der Ablaufplanung sind durch den Auftragnehmer gemaess Vertrag zu erbringende sowie vom Kunden selbst oder anderen Lieferanten beizustellende Leistungen zu beruecksichtigen. Die Eigenbestimmbarkeit der Ablaeufe wird hierdurch massgeblich eingeschraenkt. Um die Abwicklung in einem vorgesehenen Termin- und durch die Vertragspreise gegebenen Kostenrahmen mit der erforderlichen Qualitaet abzusichern, sind entsprechende organisatorische Rahmenbedingungen zu schaffen und die richtigen Methoden und Mittel einzusetzen. Der Beitrag geht im ersten Teil auf die Organisation der Projektabwicklung und im Weiteren auf bei der Firma vom hagen mce angewendete Planungsinstrumente ein. (orig.)

  5. Detecting temporal change in freshwater fisheries surveys: statistical power and the important linkages between management questions and monitoring objectives

    Science.gov (United States)

    Wagner, Tyler; Irwin, Brian J.; James R. Bence,; Daniel B. Hayes,

    2016-01-01

    Monitoring to detect temporal trends in biological and habitat indices is a critical component of fisheries management. Thus, it is important that management objectives are linked to monitoring objectives. This linkage requires a definition of what constitutes a management-relevant “temporal trend.” It is also important to develop expectations for the amount of time required to detect a trend (i.e., statistical power) and for choosing an appropriate statistical model for analysis. We provide an overview of temporal trends commonly encountered in fisheries management, review published studies that evaluated statistical power of long-term trend detection, and illustrate dynamic linear models in a Bayesian context, as an additional analytical approach focused on shorter term change. We show that monitoring programs generally have low statistical power for detecting linear temporal trends and argue that often management should be focused on different definitions of trends, some of which can be better addressed by alternative analytical approaches.

  6. The Basque power-sharing experience: From a destructive to a constructive conflict?

    NARCIS (Netherlands)

    Mansvelt Beck, J.

    2008-01-01

    Neither the devolution of powers to the Basque Autonomous Community in Spain nor more than a decade of power-sharing within this region has led to a peaceful settlement of the Basque conflict. Combining Kriesberg's approach to conflict resolution and consociational theory, past power-sharing experie

  7. A new compensation current real-time computing method for power active filter based on double linear construction algorithm

    Institute of Scientific and Technical Information of China (English)

    LI; Zicheng; SUN; Yukun

    2006-01-01

    Considering the detection principle that "when load current is periodic current, the integral in a cycle for absolute value of load current subtracting fundamental active current is the least", harmonic current real-time detection methods for power active filter are proposed based on direct computation, simple iterative algorithm and optimal iterative algorithm. According to the direct computation method, the amplitude of the fundamental active current can be accurately calculated when load current is placed in stable state. The simple iterative algorithm and the optimal iterative algorithm provide an idea about judging the state of load current. On the basis of the direct computation method, the simple iterative algorithm, the optimal iterative algorithm and precise definition of the basic concepts such as the true amplitude of the fundamental active current when load current is placed in varying state, etc., the double linear construction idea is proposed in which the amplitude of the fundamental active current at the moment of the sample is accurately calculated by using the first linear construction and the condition which disposes the next sample is created by using the second linear construction. On the basis of the double linear construction idea, a harmonic current real-time detection method for power active filter is proposed based on the double linear construction algorithm. This method has the characteristics of small computing quantity, fine real-time performance, being capable of accurately calculating the amplitude of the fundamental active current and so on.

  8. Annual report, August 1976--July 1977 Radiation dose to construction workers at operating nuclear power plant sites.

    Energy Technology Data Exchange (ETDEWEB)

    Endres, G.W.R.

    1978-01-01

    Radiation exposures received by most construction workers at nuclear power plant sites have not been measured routinely because field surveys have indicated exposure levels below the point for which monitoring is required. As a consequence, the dose to individuals and groups of workers is not known to the degree desired for adequate environmental impact assessment. This study was developed to measure and evaluate radiation exposure and exposure rates received by construction workers at various reactor sites where one or more reactors are operating while construction is proceeding on one or more additional reactors. This study is providing a data base from which a realistic assessment of radiological impact can be made for the construction workers of proposed multiunit nuclear power plants and to help arrive at a decision as to whether increased control of the radiation exposure of these workers is warranted. Four nuclear sites were included in this study after receiving approval of the operating utilities. Data from thermoluminescent personnel dosimeters and environmental dosimeters showed that the construction workers receive very little exposure above background.

  9. Potential importance of ultra-deep penetration for operation of IFE power plants

    Energy Technology Data Exchange (ETDEWEB)

    Martinkova, Michaela, E-mail: martimi2@fjfi.cvut.cz [ELI—Extreme Light Infrastructure, Za Radnici 835, 252 41 Dolni Brezany (Czech Republic); Shmatov, Mikhail L., E-mail: M.Shmatov@mail.ioffe.ru [Ioffe Institute, Politekhnicheskaya 26, 194021 St. Petersburg (Russian Federation)

    2016-04-15

    Highlights: • Ultra-deep penetration of target fragments can be dangerous for inertial fusion energy (IFE) power plants. • Low-density Xe does not protect the reactor chamber from some target fragments. • Formation of fragments of hohlraums and/or cones seems to be unavoidable. - Abstract: Possibility of damage of inertial fusion energy power plants caused by ultra-deep penetration of fragments of targets with hohlraums and/or cones for fast ignition has been investigated in this study. Some issues related to the formation of high-velocity solid and liquid fragments of targets and their deceleration and heating in the reaction chamber filled with low-density Xe gas have been studied. It was found that with a Xe gas mass density of approximately 6 μg/cm{sup 3} and reaction chamber internal radius of 6 m, a liquid spherical gold fragment with a radius of 5–7 μm could reach the chamber wall with a velocity >1 km/s.

  10. Importance of proper scaling of aerobic power when relating to cardiometabolic risk factors in children

    DEFF Research Database (Denmark)

    McMurray, Robert; Hosick ‎, Peter; Bugge, Anna

    2011-01-01

    BACKGROUND: The relationship between cardiometabolic risk factors (CMRF) and aerobic power (VO(2max)) scaled as mL O(2) per kilogram body mass is controversial because mass includes both fat and fat-free mass, and fat mass is independently associated with the CMRF. AIM: To examine common units us......, are more related to CMRF than any scaled units of VO(2max); thus care is needed when relating fitness and health issues.......BACKGROUND: The relationship between cardiometabolic risk factors (CMRF) and aerobic power (VO(2max)) scaled as mL O(2) per kilogram body mass is controversial because mass includes both fat and fat-free mass, and fat mass is independently associated with the CMRF. AIM: To examine common units used.......0001), especially for MBP, HOMA-IR, HDL and z-score, with lower correlations for TC and TG. After adjusting for ancestry, sex, height and body fat associations were greatly weakened (r physical characteristics of the child, especially body fat...

  11. Application of Multi-Valued Weighting Logical Functions in the Analysis of a Degree of Importance of Construction Parameters on the Example of Hydraulic Valves

    Directory of Open Access Journals (Sweden)

    Deptuła A.

    2014-08-01

    Full Text Available In the optimization process, changes in the construction parameters value influence the behaviour of functions depending on time. Weighting logical coefficients for the stabilisation time are taken into consideration here, i.e., a shorter (better stabilisation time has a more important (bigger value of the weighting coefficient. An example of applying weighting logical functions in the analysis of a degree of importance of construction parameters of a hydraulic valve is presented in the paper

  12. 建筑施工进度管理的重要性及管理措施%The importance and measures of construction schedule management

    Institute of Scientific and Technical Information of China (English)

    李永明

    2015-01-01

    随着我国社会经济的快速发展,特别是城市化建设的不断深入,建筑行业得到了长足的发展。在建筑工程施工过程中,有效的管理是提升施工企业综合竞争力的有效手段,而进度管理是施工管理中重要的组成部分,是建筑项目管理的核心。加强企业进度管理,不仅能够规范施工操作,提升工程施工质量,确保施工的安全,同时能够保证在规定施工工期内完工,确保施工企业履行施工合同中的相关要求。可以说施工进度管理是建筑工程项目成功的关键,本文首先分析建筑工程施工进度管理的重要性,然后分析影响建筑施工进度的主要因素,最后提出加强建筑工程施工进度管理的有效措施,供有关人员参考。%with the rapid social and economic development of our country,especially urban construction unceasingly thorough,the construction industry has been considerable development.In the building construction process,effective management is the effective means to enhance the comprehensive competitiveness of the construction enterprises,and schedule management is an important part of construction management,is the core of construction project management.Strengthen the enterprise process management,can not only standardized construction, improve construction quality,ensure the safety of construction,at the same time to ensure completion of provisions in the construction period,ensure the construction enterprises to fulfill the relevant requirements of the construction contract.It can be said that the construction schedule management is the key of construction project success,this paper first analyzes the importance of construction schedule management of construction engineering, and then analyzes the main factors affecting the progress of construction, finally put forward effective measures to strengthen the management of construction schedule for the project,relevant personnel

  13. Planning, design, and construction of nuclear power plants: an overview. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Rhodes, D.A.; Rad, P.F.

    1977-12-01

    Chapters are included on generation system descriptions and alternative energy sources; load forecasting and growth projections; utility studies, program development, and analytical models; organizational alternatives and contract arrangements; project control in the design and construction phase; site management activities; construction activities; and startup and testing.

  14. RECOVERY OF AN OXISOL DEGRADED BY THE CONSTRUCTION OF A HYDROELECTRIC POWER PLANT

    Directory of Open Access Journals (Sweden)

    Joseane Carina Borges de Carvalho

    2015-12-01

    Full Text Available ABSTRACT The removal of thick layers of soil under native scrubland (Cerrado on the right bank of the Paraná River in Selvíria (State of Mato Grosso do Sul, Brazil for construction of the Ilha Solteira Hydroelectric Power Plant caused environmental damage, affecting the revegetation process of the stripped soil. Over the years, various kinds of land use and management systems have been tried, and the aim of this study was to assess the effects of these attempts to restore the structural quality of the soil. The experiment was conducted considering five treatments and thirty replications. The following treatments were applied: stripped soil without anthropic intervention and total absence of plant cover; stripped soil treated with sewage sludge and planted to eucalyptus and grass a year ago; stripped soil developing natural secondary vegetation (capoeira since 1969; pastureland since 1978, replacing the native vegetation; and soil under native vegetation (Cerrado. In the 0.00-0.20 m layer, the soil was chemically characterized for each experimental treatment. A 30-point sampling grid was used to assess soil porosity and bulk density, and to assess aggregate stability in terms of mean weight diameter (MWD and geometric mean diameter (GMD. Aggregate stability was also determined using simulated rainfall. The results show that using sewage sludge incorporated with a rotary hoe improved the chemical fertility of the soil and produced more uniform soil pore size distribution. Leaving the land to develop secondary vegetation or turning it over to pastureland produced an intermediate level of structural soil quality, and these two treatments produced similar results. Stripped soil without anthropic intervention was of the lowest quality, with the lowest values for cation exchange capacity (CEC and macroporosity, as well as the highest values of soil bulk density and percentage of aggregates with diameter size <0.50 mm, corroborated by its lower

  15. Sesame: Self-Constructive Energy Modeling for Battery-Powered Mobile Systems

    CERN Document Server

    Dong, Mian

    2010-01-01

    System energy models are important for energy opti-mization and management in mobile systems. However, existing system energy models are built in lab with the help from a second computer. Not only are they labor-intensive; but also they will not adequately account for the great diversity in the hardware and usage of mobile systems. Moreover, existing system energy models are intended for energy estimation for time intervals of one second or longer; they do not provide the required rate for fine-grain use such as per-application energy accounting. In this work, we study a self-modeling paradigm in which a mobile system automatically generates its energy model without any external assistance. Our solution, Se-same, leverages the possibility of self power measurement through the smart battery interface and employs a suite of novel techniques to achieve accuracy and rate much higher than that of the smart battery interface. We report the implementation and evaluation of Se-same on a laptop and a smartphone. The e...

  16. Water and Climate Impacts on Power System Operations: The Importance of Cooling Systems and Demand Response Measures

    Energy Technology Data Exchange (ETDEWEB)

    Macknick, Jordan [National Renewable Energy Lab. (NREL), Golden, CO (United States); Zhou, Ella [National Renewable Energy Lab. (NREL), Golden, CO (United States); O' Connell, Matthew [National Renewable Energy Lab. (NREL), Golden, CO (United States); Brinkman, Gregory [National Renewable Energy Lab. (NREL), Golden, CO (United States); Miara, Ariel [City College of New York, NY (United States); Ibanez, Eduardo [GE Energy Connections, Atlanta, GA (United States); Hummon, Marissa [Tendril, Denver, CO (United States)

    2016-12-01

    The U.S. electricity sector is highly dependent upon water resources; changes in water temperatures and water availability can affect operational costs and the reliability of power systems. Despite the importance of water for power system operations, the effects of changes in water characteristics on multiple generators in a system are generally not modeled. Moreover, demand response measures, which can change the magnitude and timing of loads and can have beneficial impacts on power system operations, have not yet been evaluated in the context of water-related power vulnerabilities. This effort provides a first comprehensive vulnerability and cost analysis of water-related impacts on a modeled power system and the potential for demand response measures to address vulnerability and cost concerns. This study uniquely combines outputs and inputs of a water and power plant system model, production cost, model, and relative capacity value model to look at variations in cooling systems, policy-related thermal curtailments, and demand response measures to characterize costs and vulnerability for a test system. Twenty-five scenarios over the course of one year are considered: a baseline scenario as well as a suite of scenarios to evaluate six cooling system combinations, the inclusion or exclusion of policy-related thermal curtailments, and the inclusion or exclusion of demand response measures. A water and power plant system model is utilized to identify changes in power plant efficiencies resulting from ambient conditions, a production cost model operating at an hourly scale is used to calculate generation technology dispatch and costs, and a relative capacity value model is used to evaluate expected loss of carrying capacity for the test system.

  17. Construction of an American mink Bacterial Artificial Chromosome (BAC library and sequencing candidate genes important for the fur industry

    Directory of Open Access Journals (Sweden)

    Christensen Knud

    2011-07-01

    Full Text Available Abstract Background Bacterial artificial chromosome (BAC libraries continue to be invaluable tools for the genomic analysis of complex organisms. Complemented by the newly and fast growing deep sequencing technologies, they provide an excellent source of information in genomics projects. Results Here, we report the construction and characterization of the CHORI-231 BAC library constructed from a Danish-farmed, male American mink (Neovison vison. The library contains approximately 165,888 clones with an average insert size of 170 kb, representing approximately 10-fold coverage. High-density filters, each consisting of 18,432 clones spotted in duplicate, have been produced for hybridization screening and are publicly available. Overgo probes derived from expressed sequence tags (ESTs, representing 21 candidate genes for traits important for the mink industry, were used to screen the BAC library. These included candidate genes for coat coloring, hair growth and length, coarseness, and some receptors potentially involved in viral diseases in mink. The extensive screening yielded positive results for 19 of these genes. Thirty-five clones corresponding to 19 genes were sequenced using 454 Roche, and large contigs (184 kb in average were assembled. Knowing the complete sequences of these candidate genes will enable confirmation of the association with a phenotype and the finding of causative mutations for the targeted phenotypes. Additionally, 1577 BAC clones were end sequenced; 2505 BAC end sequences (80% of BACs were obtained. An excess of 2 Mb has been analyzed, thus giving a snapshot of the mink genome. Conclusions The availability of the CHORI-321 American mink BAC library will aid in identification of genes and genomic regions of interest. We have demonstrated how the library can be used to identify specific genes of interest, develop genetic markers, and for BAC end sequencing and deep sequencing of selected clones. To our knowledge, this is the

  18. The importance of flexible power plant operation for Jiangsu's wind integration

    DEFF Research Database (Denmark)

    Hong, Lixuan; Lund, Henrik; Möller, Bernd

    2012-01-01

    This paper presents the influence of different regulation strategies on wind energy integration into the existing energy system of Jiangsu. The ability of wind integration is defined in terms of the ability to avoid excess electricity production, to conserve primary energy consumption and to reduce...... regulations of Jiangsu’s energy system are compared and analyzed in the range of a wind input from 0% to 42% of the total electricity demand. It is concluded that operating power plants in a flexible way facilitates the promotion of more intermittent wind integration....... CO2 emissions in the system. Firstly, a reference model of Jiangsu’s energy system is built using the energy system analysis tool EnergyPLAN based on the year 2009. The model results are then compared to actual values from 2009 to validate their accuracy. Based on the reference model, different...

  19. Importance of proper scaling of aerobic power when relating to cardiometabolic risk factors in children

    DEFF Research Database (Denmark)

    McMurray, Robert; Hosick ‎, Peter; Bugge, Anna

    2011-01-01

    BACKGROUND: The relationship between cardiometabolic risk factors (CMRF) and aerobic power (VO(2max)) scaled as mL O(2) per kilogram body mass is controversial because mass includes both fat and fat-free mass, and fat mass is independently associated with the CMRF. AIM: To examine common units used...... to scale VO(2max) and their relationships to mean blood pressure (MBP), total cholesterol (TC), HDL cholesterol, triglycerides (TG), insulin resistance (HOMA-IR) and cumulative risk score (z-score). SUBJECTS: 1784, 8-18 year-old youths, 938 girls and 886 boys. METHODS: Fasting blood samples were obtained....... VO(2max) was estimated in mL/min from cycle ergometry and scaled to body mass (kg), fat free mass (kg(FFM)), body surface area (m(2)), height (cm) and allometric (mL/kg(0.67)/min). RESULTS: Unadjusted correlations between CMRF and many of the scaled VO(2max) units were significant (p

  20. 浅析输变电工程施工中的物资管理%Analysis of the Materials Management in the Engineering Construction of Power Transmission

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

      物资管理,是现代企业管理的一项重要内容。输变电工程施工中,物资管理具有重要的意义,它有利于降低电力企业的生产成本,从根本上保证了工程施工质量。%The materials management is an important part of modern business management. In the engineering construction of power transmission, the materials management is of great significance, which is conducive to reducing electricity prod-uction costs, and fundamental y guarantees the quality of engi-neering construction.

  1. Photovoltaic Energy Conversion System Constructed by High Step-Up Converter with Hybrid Maximum Power Point Tracking

    OpenAIRE

    Hwu, K. I.; Tu, W. C.; Wang, C.R.

    2013-01-01

    A photovoltaic energy conversion system, constructed by high step-up converter with hybrid maximum power point tracking (HMPPT), is presented. A voltage converter with a high voltage conversion ratio is proposed, which is simple in circuit and easy in control. After this, such a converter operating with a suitable initial duty cycle of the pulsewidth-modulated (PWM) control signal, together with the proposed HMPPT algorithm combining the fractional open-circuit voltage method and the incremen...

  2. Suggestions on US Army Soft Power Construction to Chinese Army%美军软实力建设及其对我军的启示

    Institute of Scientific and Technical Information of China (English)

    朱建业; 徐蓓; 郑庆

    2012-01-01

    This paper defines military soft power, and then analyzes dominating actions of US Army in terms of paying atten- tion to ideological education,attaching importance to army's leadership construction,advancing the officers and men's quality as well as enhancing army culture construction recently. In conclusion, the paper gives the references and puts for- ward some thoughts to promote our army soft power construction in effect.%在介绍军事软实力内涵的基础上,重点从注重思想教育、重视部队领导力建设、提升官兵素质、加强军营文化建设等内容分析了近年来美军在加强软实力建设方面的主要经验做法,并得出对我军加强软实力建设的启示。

  3. DEVELOPMENT OF NANOTECHNOLOGIES IN CONSTRUCTION – A TASK WHICH IS OF GREAT IMPORTANCE FOR SCIENTISTS AND ENGINEERS. Part 6

    Directory of Open Access Journals (Sweden)

    KARPOV Alexey Ivanovich

    2013-12-01

    Full Text Available To popularize scientific achievements in construction the main results of Russian and foreign scientists’ research are published in the form of abstract. Within the investigation «Physical and chemical study of nanocomposite materials produced in a template way with the controlled sol-gel synthesis method» new approaches to functionalization of silica matrix with the immobilization of cyclodextrin complexes and APG micelles with solubilizated water insoluble substances which is performed under favourable conditions in aqueous solutions without organic dissolvents were developed. These approaches can be used to produce selective sorbents and luminescence materials. The proposed method of crystall titanium dioxide nanoparticles synthesis which is carried out under room temperature, can be regarded as an alternative for its high-temperature production for photocatalysts, sensors and solar batteries. Within the investigation «Controlled self-organization of azaporphyrins in 2D and 3D nanostructure in Langmuire layers and Langmuir-Blodgett films» it was shown that along with the model design and development of method which determines nanostructured Langmuire layer structure Langmuir-Blodgett (LB technology which allows obtaining nanosized films becomes the tool to study and form 2D and iD-nanostructures in floating layers and LB films as well as to produce thin-film nanomaterials based on organic compounds with developed p-system and possessing specified structure and properties. The designed model also allows solving one of the most important problems in nanotechnology and science on nanomaterials for the low dimension systems – the problem concerning determination of dependency between the size of formed particles and the conditions needed for their formation.

  4. Characteristics and distribution of trulli constructions in the area of the site of community importance Murgia of Trulli

    Directory of Open Access Journals (Sweden)

    Giuseppe Ruggiero

    2013-10-01

    Full Text Available The agro-forestry territory in the Region of Apulia, southern Italy, is characterised by a widespread and diversified presence of dry stone constructions, including trulli, rural buildings with a characteristic a conical shape. The trulli are mainly to be found in the central and eastern part of the region, called Murgia of Trulli. Trulli are perfectly integrated with the agro-environment specificity of the area, creating a unique landscape and establishing themselves as a testimony of tradition and rural culture. In fact, in this area, from the 17th until the mid-20th century, the trulli accompanied the development of agricultural activities. According to the number of cones they had, they were used as temporary shelters, places of support for primary production, or comfortable houses for the rural population. In recent decades, for several social and economic reasons, this heritage of rural buildings has been affected by abandonment and degradation phenomena. Interventions aimed at recovery and re-use have not always respected the origin of the buildings, their design characteristics or the landscape in which they had been built. In order to reduce the impact that this situation has had on environmental and territorial quality it is, therefore, necessary to develop initiatives to protect and valorise the trulli while respecting the identity of place, the architectural elements, and the agricultural and environmental characteristics of the territory. For this purpose, we need to analyse and characterise the heritage of the existing trulli and its relationship with the local reality. The present paper analyses the typology and distribution of the trulli located on the site of community importance Murgia of Trulli, a protected area with high environmental value in the central-eastern area of the Region of Apulia. Specifically, we analysed the relationship between the trulli buildings and the agro-environment context to acquire a basic

  5. Construction of a nuclear power station in one's locality: attitudes and salience

    NARCIS (Netherlands)

    van der Pligt, J.; Eiser, J.R.; Spears, R.

    1986-01-01

    Examined the attitudes toward the building of a nuclear power station in one's locality by surveying 290 residents (mean age 47.5 yrs) of 3 small rural communities that were listed as possible locations for a new nuclear power station. Results show that a large majority of Ss opposed the building of

  6. Concept, Content, Construction, and Contingencies: Getting the Horse before the PowerPoint Cart

    Science.gov (United States)

    DuFrene, Debbie D.; Lehman, Carol M.

    2004-01-01

    The phrase "death by PowerPoint" was not born in the offices of Microsoft's competitors; it came straight from the hearts of victimized meeting attendees. Microsoft estimates that at least 30 million PowerPoint presentations are made daily, with many rightfully warranting death verdict assessment. Death sentences often result from a "construction…

  7. Local opposition to the construction of a nuclear power station: differential salience of impacts

    NARCIS (Netherlands)

    Eiser, J.R.; van der Pligt, J.; Spears, R.

    1988-01-01

    Surveyed attitudes among 290 residents of 3 villages in southwest England toward proposals to build a nuclear power station nearby. Ss were grouped according to being neutral or in favor of a new power station either locally or elsewhere (Group PN), against one locally but neutral or pro elsewhere (

  8. 1/3rd of all electrical power is imported. [Report of the annual conference of the Association of Danish Electrical Supply Undertakings (Danska Elverksfoereningen)

    Energy Technology Data Exchange (ETDEWEB)

    Magnusson, B.

    1982-10-01

    The author describes the content of speeches at the annual conference of the Association of Danish Electrical Supply Undertakings held on the 18th May at Copenhagen. He describes the debate concerning wind powered generators and nuclear power, and the new by laws of the association, coal imports versus nuclear power, and a survey of Danish electrical power consumption made by Henry Madsen.

  9. Construction and start-up of a 250 kW natural gas fueled MCFC demonstration power plant

    Energy Technology Data Exchange (ETDEWEB)

    Figueroa, R.A.; Carter, J.; Rivera, R.; Otahal, J. [San Diego Gas & Electric, CA (United States)] [and others

    1996-12-31

    San Diego Gas & Electric (SDG&E) is participating with M-C Power in the development and commercialization program of their internally manifolded heat exchanger (IMHEX{reg_sign}) carbonate fuel cell technology. Development of the IMHEX technology base on the UNOCAL test facility resulted in the demonstration of a 250 kW thermally integrated power plant located at the Naval Air Station at Miramar, California. The members of the commercialization team lead by M-C Power (MCP) include Bechtel Corporation, Stewart & Stevenson Services, Inc., and Ishikawajima-Harima Heavy Industries (IHI). MCP produced the fuel cell stack, Bechtel was responsible for the process engineering including the control system, Stewart & Stevenson was responsible for packaging the process equipment in a skid (pumps, desulfurizer, gas heater, turbo, heat exchanger and stem generator), IHI produced a compact flat plate catalytic reformer operating on natural gas, and SDG&E assumed responsibility for plant construction, start-up and operation of the plant.

  10. Practice of wind energy conversion. Wind power plant construction as crafts work. Windenergie-Praxis. Windkraftanlagen in handwerklicher Fertigung

    Energy Technology Data Exchange (ETDEWEB)

    Crome, H.

    1987-01-01

    In the course of several years the author, in cooperation with other workers in the field of wind energy, and a group of unemployed young people developed and built the prototype of a robust and efficient wind energy conversion plant. Because of its size and mode of construction, this plant type is as well suited for self-construction in this country as it is for crafts workers in Third-World countries. It yields three kilowatts of electric power: enough for the supply of larger appliances and individual houses remote from the mains grid. To assure that potential self-builders will definitely attain their goal, the author offers an introduction into the subjects wind energy utilization, site selection and plant construction; he points out what skills and tools are necessary and describes the construction of the plant step by step. This construction concept at a 'medium-technology' level is well-matured and makes it possible on the one hand to build the plant using half-finished products produced in series and relying on simple crafts techniques while allowing, on the other hand, enough scope for the use of available or easily procurable components, especially as far as such potentially costly parts as generator and gearing are concerned.

  11. Design and construction of the first Iranian powerful industrial electron accelerator

    Directory of Open Access Journals (Sweden)

    AM Poursaleh

    2015-09-01

    Full Text Available In This paper we will introduce the process of design and manufacturing an electron accelerator with 10MeV energy and 100kW power as the first Iranian powerful industrial electron accelerator. This accelerator designed based on modeling of one of the most powerful industrial accelerator called Rhodotron. But the design of the accelerator in a way that can be localize by relying on domestic industries. So although it looks like a Rhodotron accelerator structure but has some different in design and manufacture of components, the results are satisfactory

  12. Silent Bodies in Religion and Work: Migrant Filipinas and the Construction of Relational Power

    Directory of Open Access Journals (Sweden)

    Pinelopi Topali

    2013-12-01

    Full Text Available The present article explores the relationship of silences, as vocal and non-vocal bodily practices, to forms of power in religion and work. More specifically, it focuses on Filipina domestic workers in Greece who are members of Iglesia ni Cristo, an independent Filipino church. In the hierarchical contexts of the church and paid domestic work, where the church expands its influence, silence is a dominant embodied religious ethos, an ideal behavior for female workers and an expression of obedience. This silence enhances women’s subordination resulting in strict power relationships. Silencing the body, however, is also an agential practice of Filipina immigrants themselves, a tool to transform power relationships into more reciprocal ones. By reflective and unreflective practices of bodily silence, migrant Filipinas reverse subjection, transform the power relationships in which they are involved and attribute to them a more relational character.

  13. 新建核电站风险信息沟通实证研究%Risk Communication in Construction of New Nuclear Power Plant

    Institute of Scientific and Technical Information of China (English)

    贺桂珍; 吕永龙

    2013-01-01

    随着我国近年核电产业的迅速扩张,核风险管理已成为社会各界关注甚至争议的热点.核风险沟通是核突发事件预防、应对及恢复的关键要素,对核风险管理具有重要的影响.然而,对如何与核电站周边风险群体进行有效沟通还知之甚少.为弥补这个缺憾,作者走访了山东海阳在建核电站相关管理人员并对周边常住居民进行问卷调查,以了解他们对核电发展的态度.文章描述了风险沟通的基本框架,意识到公众信任和信息公开的重要性.结果发现我国核能发展决策是由政府部门、核能企业和科研院所组成的“铁三角”主导的,受访者获取核信息的最主要途径是媒体,相对于其它渠道,超过51%的公众更相信政府发布的信息,更多受访者不愿意接受核风险和反对在当地建设核电站.最后提出了有效风险沟通的基本原则.研究结论对未来核电风险管理具有重要指导意义,也对利益相关方具有参考价值.%Accompanied by construction of new nuclear power plants in the coming decades in China, risk management has become increasingly politicized and contentious. Nuclear risk communication is a critical component in helping individuals prepare for, respond to, and recover from nuclear power emergencies. It was discussed that awareness of trust and public attitudes are important determinants in nuclear power risk communication and management. However, there is limited knowledge about how to best communicate with at-risk populations around nuclear power plant in China. To bridge this gap, this study presented the attitudinal data from a field survey in under-building Haiyang nuclear power plant, Shandong Province to measure public support for and opposition to the local construction of nuclear power plant. The paper discussed the structure of the communication process from a descriptive point of view, recognizing the importance of trust and understanding the

  14. Construction and environmental aspects of hydroelectric power stations; Bauliche Gestaltung und Umweltaspekte von Wasserkraftanlagen

    Energy Technology Data Exchange (ETDEWEB)

    Giesecke, J. [Stuttgart Univ. (Germany). Inst. fuer Wasserbau

    1997-12-31

    In terms of environmental-friendliness, inexhaustibility, availability, non-pollution and cost conditions, hydro power is the most obvious renewable energy source. Harnessing of hydro power does interfere with nature. But there are ways of reconciling economic and ecological concerns. (orig.) [Deutsch] Im Hinblick auf Umweltfreundlichkeit, Unerschoepflichkeit, Verfuegbarkeit, Schadstofffreiheit und Kostenlage stellt die Wasserkraft die vorrangige erneuerbare Energiequelle dar. Ihre Nutzung fuehrt zu Eingriffen in die Natur. Es gibt jedoch Wege, die Belange der Oekonomie und der Oekologie ausgewogen aufeinander abzustimmen. (orig.)

  15. BRED: a simple and powerful tool for constructing mutant and recombinant bacteriophage genomes.

    Directory of Open Access Journals (Sweden)

    Laura J Marinelli

    Full Text Available Advances in DNA sequencing technology have facilitated the determination of hundreds of complete genome sequences both for bacteria and their bacteriophages. Some of these bacteria have well-developed and facile genetic systems for constructing mutants to determine gene function, and recombineering is a particularly effective tool. However, generally applicable methods for constructing defined mutants of bacteriophages are poorly developed, in part because of the inability to use selectable markers such as drug resistance genes during viral lytic growth. Here we describe a method for simple and effective directed mutagenesis of bacteriophage genomes using Bacteriophage Recombineering of Electroporated DNA (BRED, in which a highly efficient recombineering system is utilized directly on electroporated phage DNA; no selection is required and mutants can be readily detected by PCR. We describe the use of BRED to construct unmarked gene deletions, in-frame internal deletions, base substitutions, precise gene replacements, and the addition of gene tags.

  16. The importance of ships and spare parts in LCAs of offshore wind power.

    Science.gov (United States)

    Arvesen, Anders; Birkeland, Christine; Hertwich, Edgar G

    2013-03-19

    We develop and assess life cycle inventories of a conceptual offshore wind farm using a hybrid life cycle assessment (LCA) methodology. Special emphasis is placed on aspects of installation, operation, and maintenance, as these stages have been given only cursory consideration in previous LCAs. The results indicate that previous studies have underestimated the impacts caused by offshore operations and (though less important) exchange of parts. Offshore installation and maintenance activities cause 28% (10 g CO(2)-Eq/kWh) of total greenhouse gas emissions and 31-45% of total impact indicator values at the most (marine eutrophication, acidification, particulates, photochemical ozone). Transport and dumping of rock in installation phase and maintenance of wind turbines in use phase are major contributory activities. Manufacturing of spare parts is responsible for 6% (2 g CO2-Eq/kWh) of greenhouse gas emissions and up to 13% of total impact indicator values (freshwater ecotoxicity). Assumptions on lifetimes, work times for offshore activities and implementation of NOx abatement on vessels are shown to have a significant influence on results. Another source of uncertainty is assumed operating mode data for vessels determining fuel consumption rates.

  17. Importance of hydropower for the global power generation; Bedeutung der Wasserkraft fuer die weltweite Stromerzeugung

    Energy Technology Data Exchange (ETDEWEB)

    Schiffer, Hans-Wilhelm [World Energy Council, London (United Kingdom). World Energy Resources; RWE AG, Essen (Germany)

    2015-10-15

    The renewable energy sources have in the last ten years - not only in Germany, but also worldwide - can post disproportionately strong growth rates. This is especially true in the electricity production. Especially the new renewable energies have a stable, strong growth and gain as compared to the conventional generation ever more ground. Nevertheless, hydropower remains by far the most important source of renewable energy in electricity generation. An analysis shows that hydropower can make significant contributions to sustainable and climate-friendly energy supply by 2050, if it is possible to raise their still unused potential. [German] Die erneuerbaren Energien haben in den letzten zehn Jahren - nicht nur in Deutschland, sondern auch weltweit - ueberproportional starke Zuwachsraten verbuchen koennen. Dies gilt insbesondere in der Stromerzeugung. Gerade die neuen erneuerbaren Energien weisen ein bestaendiges, starkes Wachstum auf und gewinnen so gegenueber der konventionellen Erzeugung immer weiter an Boden. Trotzdem ist die Wasserkraft unveraendert die mit Abstand bedeutendste erneuerbare Energiequelle in der Stromerzeugung. Eine Analyse zeigt, dass die Wasserkraft bis 2050 signifikante Beitraege zu einer nachhaltigen und klimaschonenden Energieversorgung leisten kann, wenn es gelingt, ihre noch ungenutzen Potenziale zu heben.

  18. Discussion on the Importance of the Construction of Urban Community Culture%浅谈城市社区文化建设的重要性

    Institute of Scientific and Technical Information of China (English)

    郝晓静

    2012-01-01

    Urban community culture construction is the important constituent in the community construction, is the important content of constructing the harmonious community. In this paper, the importance of community culture construction is discussed, and the existing problems in current community culture construction are analyzed, and effective ways of strengthening the construction of urban community culture are put forward, in order to promote the healthy and flourishing development of community culture.%城市社区文化建设是社区建设的重要组成部分,是构建和谐社区的重要内容.本文就社区文化建设的重要性进行了阐述,对目前社区文化建设中存在的问题进行了分析,从而提出了加强城市社区文化建设应采用的有效途径,以推进社区文化健康发展,日益繁荣.

  19. Comparative analysis of structural concrete quality assurance practices on three fossil fuel power plant construction projects. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Willenbrock, J.H.; Thomas, H.R. Jr.; Burati, J.L. Jr.

    1978-06-01

    The basic objective of this research effort was to perform a comparative analysis of the Quality Assurance practices related to the structural concrete phase on three fossil fuel power plant projects which are (or have been) under construction in the United States in the past ten years. This analysis identified the response of each Quality Assurance program to criteria similar to those which apply on nuclear power plant projects. The major emphasis was placed on the construction aspects of the structural concrete phase of each project. The engineering and design aspects were examined whenever they interfaced with the construction aspects. For those aspects of the Quality Assurance system which can be considered managerial in nature (i.e., organizational relationships, types of Quality Assurance programs, corrective action procedures, etc.) an attempt has been made to present the alternative approaches that were identified. For those aspects of the Quality Assurance system which are technical in nature (i.e., the frequency of testing for slump, compressive strength, etc.) an attempt has been made to present a comparative analysis between projects and in relation to the recommended or mandated practices presented in the appropriate industry codes and standards.

  20. The Mexican Health Paradox: Expanding the Explanatory Power of the Acculturation Construct

    Science.gov (United States)

    Horevitz, Elizabeth; Organista, Kurt C.

    2013-01-01

    The Mexican health paradox refers to initially favorable health and mental health outcomes among recent Mexican immigrants to the United States. The subsequent rapid decline in Mexican health outcomes has been attributed to the process of acculturation to U.S. culture. However, the construct of acculturation has come under significant criticism…

  1. The Mexican Health Paradox: Expanding the Explanatory Power of the Acculturation Construct

    Science.gov (United States)

    Horevitz, Elizabeth; Organista, Kurt C.

    2013-01-01

    The Mexican health paradox refers to initially favorable health and mental health outcomes among recent Mexican immigrants to the United States. The subsequent rapid decline in Mexican health outcomes has been attributed to the process of acculturation to U.S. culture. However, the construct of acculturation has come under significant criticism…

  2. 建设蓄能电站解决风电消纳经济性分析%Economic Analysis on Constructing Storage Stations for Consuming Wind Power

    Institute of Scientific and Technical Information of China (English)

    靳亚东; 董化宏; 马登清

    2011-01-01

    用电市场对风电消纳能力不足已经成为制约风电发展的“瓶颈”,建设抽水蓄能电站被认为是水电缺乏地区调整电源结构、解决风电消纳能力问题的有效途径,但建设抽水蓄能电站解决风电消纳的经济性问题一直是个疑问,通过详细的方案测算认为在一定的条件下,电网企业或发电公司建设抽水蓄能电站解决风电消纳是经济可行的.%The capacity shortage of electricity market for consuming wind power has been regarded as the "bottleneck" of wind power development, and the construction of pumped-storage power stations has been also considered to be an effective way to adjust power source structure and solve wind power consumption for the areas without sufficient hydropower sources, but the economy of constructing pumped -storage power stations has been a question. The economy is analyzed for constructing pumped-storage power stations to consume wind power, and the case study shows that, in certain conditions, constructing pumped-storage power stations to consume wind power by power grid and generation enterprises is feasible in economy.

  3. Operational, design and microbial aspects related to power production with microbial fuel cells implemented in constructed wetlands.

    Science.gov (United States)

    Corbella, Clara; Guivernau, Miriam; Viñas, Marc; Puigagut, Jaume

    2015-11-01

    This work aimed at determining the amount of energy that can be harvested by implementing microbial fuel cells (MFC) in horizontal subsurface constructed wetlands (HSSF CWs) during the treatment of real domestic wastewater. To this aim, MFC were implemented in a pilot plant based on two HSSF CW, one fed with primary settled wastewater (Settler line) and the other fed with the effluent of a hydrolytic up-flow sludge blanket reactor (HUSB line). The eubacterial and archaeal community was profiled on wetland gravel, MFC electrodes and primary treated wastewater by means of 16S rRNA gene-based 454-pyrosequencing and qPCR of 16S rRNA and mcrA genes. Maximum current (219 mA/m(2)) and power (36 mW/m(2)) densities were obtained for the HUSB line. Power production pattern correlated well with water level fluctuations within the wetlands, whereas the type of primary treatment implemented had a significant impact on the diversity and relative abundance of eubacteria communities colonizing MFC. It is worth noticing the high predominance (13-16% of relative abundance) of one OTU belonging to Geobacter on active MFC of the HUSB line that was absent for the settler line MFC. Hence, MFC show promise for power production in constructed wetlands receiving the effluent of a HUSB reactor. Copyright © 2015 Elsevier Ltd. All rights reserved.

  4. Construction and test of a high power injector of hydrogen cluster ions

    CERN Document Server

    Becker, E W; Hagena, O F; Henkes, P R W; Klingelhofer, R; Moser, H O; Obert, W; Poth, I

    1979-01-01

    A high power injector of hydrogen cluster ions, rated for 1 MV and 100 kW, is described. The injector is split in three separate tanks connected by a 1 MV transfer line. The cluster ion beam source and all its auxiliary equipment is placed at high voltage, insulated by SF/sub 6/ gas at pressure of 4 bar. The main components of the injector are: The cluster ion beam source with integrated helium cryopumps, the CERN type acceleration tube with 750 mm ID, the beam dump designed to handle the mass and energy flux under DC conditions, a 1 MV high voltage terminal for the auxiliary equipment supplied by its 40 kVA power supply with power, and the 1 MV 120 kW DC high voltage generator. This injector is installed in Karlsruhe. Performance tests were carried out successfully. It is intended to use this injector for refuelling experiments at the ASDEX Tokamak. (12 refs).

  5. 电网造价管理改进措施浅析%Primary analysis of the improvement measures in management of power grid construction cost

    Institute of Scientific and Technical Information of China (English)

    舒兰

    2011-01-01

    According to the present native power project cost characteristic and ~;rid construction cost -controlling condition, the paper presents the controlling measure of the management of power grid construction cost in order to improving the investment benefit if the power grid construction.%根据研究当前国内电力工程造价的特点和电网建设工程全过程造价控制现状,分析并提出电网建设全过程造价管理的控制措施,提高电网建设的投资效益性。

  6. Metal and metalloid removal in constructed wetlands, with emphasis on the importance of plants and standardized measurements: A review

    Energy Technology Data Exchange (ETDEWEB)

    Marchand, L., E-mail: lilian.marchand@hotmail.f [UMR BIOGECO INRA 1202, Ecologie des communautes, Universite Bordeaux 1, Bat B8 RDC Est, Avenue des facultes, F-33405 Talence (France); Mench, M. [UMR BIOGECO INRA 1202, Ecologie des communautes, Universite Bordeaux 1, Bat B8 RDC Est, Avenue des facultes, F-33405 Talence (France); Jacob, D.L.; Otte, M.L. [Wet Ecosystem Research Group, Department of Biological Sciences, NDSU Dept. 2715, P.O. Box 6050, Fargo, ND 58108-6050 (United States)

    2010-12-15

    This review integrates knowledge on the removal of metals and metalloids from contaminated waters in constructed wetlands and offers insight into future R and D priorities. Metal removal processes in wetlands are described. Based on 21 papers, the roles and impacts on efficiency of plants in constructed wetlands are discussed. The effects of plant ecotypes and class (monocots, dicots) and of system size on metal removal are addressed. Metal removal rates in wetlands depend on the type of element (Hg > Mn > Fe = Cd > Pb = Cr > Zn = Cu > Al > Ni > As), their ionic forms, substrate conditions, season, and plant species. Standardized procedures and data are lacking for efficiently comparing properties of plants and substrates. We propose a new index, the relative treatment efficiency index (RTEI), to quantify treatment impacts on metal removal in constructed wetlands. Further research is needed on key components, such as effects of differences in plant ecotypes and microbial communities, in order to enhance metal removal efficiency. - A new index, the relative treatment efficiency index (RTEI), to quantify treatment impacts on metal and metalloid removal in constructed wetlands.

  7. Design and construction of power plants in the Netherlands; Ontwerp en constructie [van elektriciteitscentrales

    Energy Technology Data Exchange (ETDEWEB)

    De Boer, A. [ed.

    2000-06-01

    In order to fulfil the increasing demand for energy - the capacity should be doubled within 25 years - much capacity for electricity must be built. To actually build them and modernise and expand the existing plants, the stages engineering, procurement and construction are crucial. The form of the contract is determining the way in which these phases of the project will be executed. EPC-contractors (EPC stands for Engineering, Procurement, and Contractors) can increase their efficiency level of the building-process by using standards en by outsourcing the detailed engineering to subcontractors and offices in countries with low wages. When it comes to procurement, EPC-contractors can improve their efficiency by developing and using e-procurement. Finally, a proper planning of the construction phase is essential, but not a guarantee that everything will go smoothly.

  8. #QueenOfTheNation: multimodality and subversion in the construction of the power of the character Dilma Bolada

    Directory of Open Access Journals (Sweden)

    Leonel Andrade dos Santos

    2016-12-01

    Full Text Available This study aims to analyze how is the construction of the power of Dilma Bolada’s character  in her posts on Facebook.  For this, we supported us the on the theoretical proposal of Kress and van Leeuwen (2006 in terms of compositional metafunction and we took into account the ways that make the textual tessitura, whether verbal or visual. In addition, we articulated these assumptions on the concept of subversion postulated by Maingueneau (2004.  This research has qualitative interpretative nature on a corpus of three posts made on the official Dilma Bolada’s character on Facebook, published and collected between April and May 2014.  Among  various publications during this period, we listed those whose theme revolved around the Game of Thrones series. We emphasize that these posts refer to two distinct constructs of images: the Brazilian President Dilma Rousseff and the referred television series, creating, through these images, the character Dilma Bolada. We evidenced in these publications the appreciation of the power of Dilma Bolada achieved by the use of strong and vibrant colors of their clothing, the center position, or by being close to the ideal plan, in addition to subversion of the universe of the Game of Thrones series, which provided characteristics of strength and sovereignty to the character. The investigation allowed us to conclude that the traces of visual composition, enhanced by subverting the context of  the President Dilma Rousseff and the Game of Thrones series, contributed to the construction of the power of  Dilma Bolada’s image character.

  9. MODELING OF WIND LOADS ACTING ON THE WIND POWER STATION CONSTRUCTION OF THE COMBINED TYPE

    Directory of Open Access Journals (Sweden)

    Bukhtoyarova E. S.

    2014-04-01

    Full Text Available The article presents the solution of questions about the intensity of wind loads acting on the wind power station of the combined type in relation to the conditions of the Rostov region on the basis of the structural dynamic simulation

  10. Dust Exposure and Coccidioidomycosis Prevention Among Solar Power Farm Construction Workers in California.

    Science.gov (United States)

    Sondermeyer Cooksey, Gail L; Wilken, Jason A; McNary, Jennifer; Gilliss, Debra; Shusterman, Dennis; Materna, Barbara L; Vugia, Duc J

    2017-08-01

    To investigate if work activities, dust exposure, and protection measures were associated with a 2011 to 2014 coccidioidomycosis outbreak among workers constructing 2 solar farms in California. In 2013, we mailed self-administered questionnaires to employees who were onsite at the solar farms where the outbreak occurred to identify cases of clinical coccidioidomycosis and compare with asymptomatic workers by using multivariate logistic regression. When we compared 89 workers with clinical coccidioidomycosis to 325 asymptomatic workers, frequently being in a dust cloud or storm (odds ratio [OR] = 5.93; 95% confidence interval [CI] = 3.18, 11.06) significantly increased the odds of clinical coccidioidomycosis, whereas frequently wetting soil before soil-disturbing activity (OR = 0.42; 95% CI = 0.24, 0.75) was protective. When we controlled for being in a dust cloud or storm, frequent soil disturbance significantly increased the odds of clinical coccidioidomycosis only among those who reported wearing a respirator infrequently (OR = 2.31; 95% CI = 1.27, 4.21). Utilization of personal and employer-driven safety practices and increased coccidioidomycosis awareness among construction workers should be considered during the planning of any construction work in coccidioidomycosis-endemic regions to prevent occupational infections and outbreaks.

  11. Management and construction of a major zero discharge water supply and treatment scheme at Mount Piper Power Station, Australia

    Energy Technology Data Exchange (ETDEWEB)

    Wong, P.; Docker, P.; Gabbrielli, E.; Wade, P. [Pacific Power, Sydney, NSW (Australia)

    1994-09-01

    Excellence in the organisation and management of a large multi-disciplinary design and construct project such as the zero discharge water supply and treatment scheme for Mount Piper coal-fired power station was essential to its successful execution. This paper discusses the management philosophies and strategies of Pacific Power and Transfield-PWT Asia/Pacific that resulted in this project being completed to the satisfaction of the client in the minimum time without delays and cost increases caused by interfaces between the parties. It highlights the advantages of contract packaging and placing the total responsibility for the performance and integration of a complex project system on one organisation. 2 refs., 6 figs.

  12. DEVELOPMENT OF NANOTECHNOLOGIES IN CONSTRUCTION – A TASK WHICH IS OF GREAT IMPORTANCE FOR SCIENTISTS AND ENGINEERS. Part 5

    Directory of Open Access Journals (Sweden)

    KARPOV Alexey Ivanovich

    2013-10-01

    Full Text Available To popularize nanoindustrial subjects in construction, to increase consum­ers’ confidence to nanotechnological products, the main results of Russian sci­entists’ research are published as the abstract. Within the line of investigation «Structuring and technology of composites of common and special purposes based on metallurgic underutilized wastes» construction and technological potential of metallurgic underutilized wastes was determined through the test, detection and identification of technogenic materials on the basis of structuring role in the curing systems and composites, that became the ground for forming regional geo­graphically-industrial complex with developed metallurgic industry; the curing systems of optimal compositions were produced through joint grind of converter slag which specific surface area is 300 square meters per kg. with superplasticiz­ers and nanodispersed mineral additives. This provides decreasing of binder in­terparticle voids and increasing the slag particle reactivity, that causes strength increase.

  13. DEVELOPMENT OF NANOTECHNOLOGIES IN CONSTRUCTION – A TASK WHICH IS OF GREAT IMPORTANCE FOR SCIENTISTS AND ENGINEERS

    Directory of Open Access Journals (Sweden)

    KARPOV Alexey Ivanovich

    2013-02-01

    Full Text Available Publications play a significant role by supporting the creation and application of nanotechnological products through information. Therefore the Russian Engineering Academy decided to establish the Internet-journal «Nanotechnologies in Construction» in 2009. According to the opinion of many specialists and experts, the concept to publish such journal proved to be very beneficial. The specialized information has strongly influenced the work of scientists in the area of construction nanotechnologies. At the authors’ and readers’ request, the editors launched a new section aimed at publishing the main results of Ph.D. and Doctorate theses, to popularize the subject of the nanoindustry in construction and to increase the consumers’ trust in the domestic goods produced by the nanoindustry. The published material is a good theoretical basis for post graduate students and persons working for a doctorate. In this issue we present the main results of the following Ph.D. theses: «Modification of anhydride compositions with ultra- and nanodispersed additives» by I.S. Maeva and «Nanostructured perlite binding and its application to foam concrete» by E.V. Miroshnikova.

  14. Metal and metalloid removal in constructed wetlands, with emphasis on the importance of plants and standardized measurements: A review.

    Science.gov (United States)

    Marchand, L; Mench, M; Jacob, D L; Otte, M L

    2010-12-01

    This review integrates knowledge on the removal of metals and metalloids from contaminated waters in constructed wetlands and offers insight into future R&D priorities. Metal removal processes in wetlands are described. Based on 21 papers, the roles and impacts on efficiency of plants in constructed wetlands are discussed. The effects of plant ecotypes and class (monocots, dicots) and of system size on metal removal are addressed. Metal removal rates in wetlands depend on the type of element (Hg > Mn > Fe = Cd > Pb = Cr > Zn = Cu > Al > Ni > As), their ionic forms, substrate conditions, season, and plant species. Standardized procedures and data are lacking for efficiently comparing properties of plants and substrates. We propose a new index, the relative treatment efficiency index (RTEI), to quantify treatment impacts on metal removal in constructed wetlands. Further research is needed on key components, such as effects of differences in plant ecotypes and microbial communities, in order to enhance metal removal efficiency.

  15. Leaching of polycyclic aromatic hydrocarbons from power plant lignite ash--influence of parameters important for environmental pollution.

    Science.gov (United States)

    Pergal, Miodrag M; Relić, Dubravka; Tešić, Zivoslav Lj; Popović, Aleksandar R

    2014-03-01

    Nikola Tesla B power plant (TENT B), located at the Sava River, in Obrenovac, 50 km west from the Serbian's capital, Belgrade, is the second largest coal-fired power plant in the country, consisting of two blocks, each of 620 MW capacity. In order to investigate the threat polycyclic aromatic hydrocarbons (PAHs) from deposited coal ash, obtained by coal combustion in this power plant, can represent for the surrounding environment, samples of coal ash were submitted to extraction with river water used for transport of coal ash to the dump, as well as with water of different ionic strength and acidity. It was found that, out of 16 EPA priority PAHs, only naphthalene, acenaphthylene, fluorene, phenantrene, fluoranthene, and pyrene were found in measurable concentrations in the different extracts. Their combined concentration was around 0.1 μg/L, so they do not, in terms of leached concentrations, represent serious danger for the surrounding environment. In all cases of established (and leached) PAH compounds, changes of ionic strength, acidity, or the presence of organic compounds in river water may to some extent influence the leached concentrations. However, under the examined conditions, similar to those present in the environment, leached concentrations were not more than 50 % greater than the concentrations leached by distilled water. Therefore, water desorption is likely the most important mechanism responsible for leaching of PAH compounds from filter coal ash.

  16. The potential economic impact of constructing and operating solar power generation facilities in Nevada

    Energy Technology Data Exchange (ETDEWEB)

    Schwer, R. K. [Univ. of Nevada, Las Vegas, NV (United States); Riddel, M. [Univ. of Nevada, Las Vegas, NV (United States)

    2004-02-01

    Nevada has a vast potential for electricity generation using solar power. An examination of the stock of renewable resources in Nevada proves that the state has the potential to be a leader in renewable-electric generation--one of the best in the world. This study provides estimates on the economic impact in terms of employment, personal income, and gross state product (GSP) of developing a portion of Nevada's solar energy generation resources.

  17. Analysis of technical-economic requirements for the construction of a solar power plant on the roof of the business building of the Electrical Engineering Institute 'Nikola Tesla'

    National Research Council Canada - National Science Library

    Grbić Maja; Antić Radoslav; Ponoćko Jelena; Mikulović Jovan; Đurišić Željko

    2014-01-01

    This paper presents an analysis of the technical-economic requirements for the construction of a solar power plant on the roof of the business building of the Electrical Engineering Institute 'Nikola Tesla' in Belgrade...

  18. 电力通信企业安全文化建设分析%Analysis on Safety Culture Construction of Electric Power Communication Enterprise

    Institute of Scientific and Technical Information of China (English)

    许敏

    2015-01-01

    要想做好电力通信企业的安全文化建设,不仅需要强化安全意识,而且还要在实际工作阶段中采取有效行动,要从身边的销售开始做起。文章认为,通信企业安全文化是企业文化的重要组成部分,企业安全文化建设的关键是班组的文化建设。%In order to make the safety culture construction of electric power communication enterprises,not only need to strengthen security awareness,but also need to take effective action in the actual work phase,need to start from the sales. The paper holds that safety culture of communication enterprises is an important part of enterprises culture,the key safety culture construction of enterprises is the cultural construction of the team.

  19. Radiation control aspects of the civil construction for a high power free electron laser (FEL) facility

    Energy Technology Data Exchange (ETDEWEB)

    Dunn, T.; Neil, G.; Stapleton, G.

    1996-12-31

    The paper discusses some of the assumptions and methods employed for the control of ionizing radiation in the specifications for the civil construction of a planned free electron laser facility based on a 200 MeV, 5 mA superconducting recirculation electron accelerator. Consideration is given firstly to the way in which the underlying building configuration and siting aspects were optimized on the basis of the early assumptions of beam loss and radiation goals. The various design requirements for radiation protection are then considered, and how they were folded into an aesthetically pleasing and functional building.

  20. Does constructive neutral evolution play an important role in the origin of cellular complexity? Making sense of the origins and uses of biological complexity

    NARCIS (Netherlands)

    D. Speijer

    2011-01-01

    Recently, constructive neutral evolution has been touted as an important concept for the understanding of the emergence of cellular complexity. It has been invoked to help explain the development and retention of, amongst others, RNA splicing, RNA editing and ribosomal and mitochondrial respiratory

  1. Coccidioidomycosis among Workers Constructing Solar Power Farms, California, USA, 2011–2014

    Science.gov (United States)

    Sondermeyer, Gail; Shusterman, Dennis; McNary, Jennifer; Vugia, Duc J.; McDowell, Ann; Borenstein, Penny; Gilliss, Debra; Ancock, Benedict; Prudhomme, Janice; Gold, Deborah; Windham, Gayle C.; Lee, Lauren; Materna, Barbara L.

    2015-01-01

    Coccidioidomycosis is associated with soil-disruptive work in Coccidioides-endemic areas of the southwestern United States. Among 3,572 workers constructing 2 solar power–generating facilities in San Luis Obispo County, California, USA, we identified 44 patients with symptom onset during October 2011–April 2014 (attack rate 1.2 cases/100 workers). Of these 44 patients, 20 resided in California outside San Luis Obispo County and 10 resided in another state; 9 were hospitalized (median 3 days), 34 missed work (median 22 days), and 2 had disseminated disease. Of the 25 patients who frequently performed soil-disruptive work, 6 reported frequent use of respiratory protection. As solar farm construction in Coccidioides-endemic areas increases, additional workers will probably be exposed and infected unless awareness is emphasized and effective exposure reduction measures implemented, including limiting dust generation and providing respiratory protection. Medical providers, including those in non–Coccidioides-endemic areas, should suspect coccidioidomycosis in workers with compatible illness and report cases to their local health department. PMID:26484688

  2. Comparative analysis of structural concrete quality assurance practices on nine nuclear power plant construction projects. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Willenbrock, J.H.; Thomas, H.R. Jr.; Burati, J.L. Jr.

    1978-06-01

    The basic objective of this research effort was to perform a comparative analysis of the Quality Assurance practices related to the structural concrete phase on nine nuclear power plant projects which are (or have been) under construction in the United States in the past ten years. This analysis identified the response of each Quality Assurance program to the applicable criteria of 10 CFR Part 50, Appendix B as well as to the pertinent regulatory requirements and industry standards. The major emphasis was placed on the construction aspects of the structural concrete phase of each project. The engineering and design aspects were examined whenever they interfaced with the construction aspects. For those aspects of the Quality Assurance system which can be considered managerial in nature (i.e., organizational relationships, types of Quality Assurance programs, corrective action procedures, etc.) an attempt has been made to present the alternative approaches that were identified. For those aspects of the Quality Assurance system which are technical in nature (i.e., the frequency of testing for slump, compressive strength, etc.) an attempt has been made to present a comparative analysis between projects and in relation to the recommended or mandated practices presented in the appropriate industry codes and standards.

  3. Construction of Powerful Online Search Expert System Based on Semantic Web

    Directory of Open Access Journals (Sweden)

    Yasser A. Nada

    2013-01-01

    Full Text Available In this paper we intends to build an expert system based on semantic web for online search using XML, to help users to find the desired software, and read about its features and specifications. The expert system saves user's time and effort of web searching or buying software from available libraries. Building online search expert system is ideal for capturing support knowledge to produce interactive on-line systems that provide searching details, situation-specific advice exactly like setting a session with an expert. Any person can access this interactive system from his web browser and get some questions answer in addition to precise advice which was provided by an expert. The system can provide some troubleshooting diagnose, find the right products; … Etc. The proposed system further combines aspects of three research topics (Semantic Web, Expert System and XML. Semantic web Ontology will be considered as a set of directed graphs where each node represents an item and the edges denote a term which is related to another term. Organizations can now optimize their most valuable expert knowledge through powerful interactive Web-enabled knowledge automation expert system. Online sessions emulate a conversation with a human expert asking focused questions and producing customized recommendations and advice. Hence, the main powerful point of the proposed expert system is that the skills of any domain expert will be available to everyone.

  4. Methodology for Constructing Reduced-Order Power Block Performance Models for CSP Applications: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, M.

    2010-10-01

    The inherent variability of the solar resource presents a unique challenge for CSP systems. Incident solar irradiation can fluctuate widely over a short time scale, but plant performance must be assessed for long time periods. As a result, annual simulations with hourly (or sub-hourly) timesteps are the norm in CSP analysis. A highly detailed power cycle model provides accuracy but tends to suffer from prohibitively long run-times; alternatively, simplified empirical models can run quickly but don?t always provide enough information, accuracy, or flexibility for the modeler. The ideal model for feasibility-level analysis incorporates both the detail and accuracy of a first-principle model with the low computational load of a regression model. The work presented in this paper proposes a methodology for organizing and extracting information from the performance output of a detailed model, then using it to develop a flexible reduced-order regression model in a systematic and structured way. A similar but less generalized approach for characterizing power cycle performance and a reduced-order modeling methodology for CFD analysis of heat transfer from electronic devices have been presented. This paper builds on these publications and the non-dimensional approach originally described.

  5. THE ROLE OF THE “NEW COLD WAR” CONCEPT IN CONSTRUCTING RUSSIA’S GREAT POWER NARRATIVE

    Directory of Open Access Journals (Sweden)

    Ionela Maria CIOLAN

    2016-12-01

    Full Text Available For the past two years, since the annexation of Crimea (2014, there is strong evidence to confirm that the relations between the West and Moscow have deteriorated. As conflicts are unfolding both in Eastern Europe and the Middle East, the tensions between the United States and Russia are at their highest point since the end of Cold War. In this context, the concept of “New Cold War” started to be more frequently used in Western media and think tank analyses, but also in Russian high officials’ discourses. The concept was frequently used as a metaphor in public discourse with various tensed occasions in the last 2 decades. But it was most frequently used after the events in Ukraine. The main purpose of the article is to investigate the present context in which this concept is being used in relation with the main premises of Russian foreign policy. We are initializing our research with our research question: “How the “New Cold War” concept fosters the idea of the Russian Federation as a great power?”. This paper argues that the “New Cold War” is a symbolic concept used to strengthen Russia’s great power narrative. Using constructivists’ arguments of the international relations theory, we will examine this idea and will observe how this social construct helps Russia to strengthen its great power and offers a new interpretation to the international environment.

  6. Marital Construction of Family Power among Male-out-Migrant Couples in a Chinese Village: A Relation-Oriented Exchange Model

    Science.gov (United States)

    Zuo, Jiping

    2008-01-01

    This study examines marital construction of family power among male-out-migrant couples in a Chinese village in Guangxi Province. In-depth interviews show that male-out-migrant couples prefer joint decision making. When couples are in disputes, power tends to go to the ones who shoulder greater household-based responsibilities; in this case, they…

  7. Design, simulation and construction of quadrupole magnets for focusing electron beam in powerful industrial electron accelerator

    Directory of Open Access Journals (Sweden)

    S KH Mousavi

    2015-09-01

    Full Text Available In this paper the design and simulation of quadrupole magnets and electron beam optical of that by CST Studio code has been studied. Based on simulation result the magnetic quadrupole has been done for using in beam line of first Iranian powerful electron accelerator. For making the suitable magnetic field the effects of material and core geometry and coils current variation on quadrupole magnetic field have been studied. For test of quadrupole magnet the 10 MeV beam energy and 0.5 pi mm mrad emittance of input beam has been considered. We see the electron beam through the quadrupole magnet focus in one side and defocus in other side. The optimum of distance between two quadrupole magnets for low emittance have been achieved. The simulation results have good agreement with experimental results

  8. DEVELOPMENT OF NANOTECHNOLOGIES IN CONSTRUCTION – A TASK WHICH IS OF GREAT IMPORTANCE FOR SCIENTISTS AND ENGINEERS. Part 4

    Directory of Open Access Journals (Sweden)

    KARPOV Alexey Ivanovich

    2013-08-01

    Full Text Available To popularize nanoindustrial subjects in construction, to increase consumers’ confidence to nanotechnological products, the main results of Russian scientists’ research are publised as the abstracts. Within the frame «Production of modified fibrous concrete mixture, aimed at improving physical and mechanical properties through the components hardening the structure of fibrous concrete at micro- and nanolevels» it was experimentally proved that complex modifying additive containing carbon nanomodifier «Taunit» can be applied in production of steel fiber concrete and solution; compositions of steel fiber concrete with complex modifying additives and compositions of lightweight heat-resistant steel fiber concrete have been developed. Two Russian patents (№ 2361847, 2386599 for inventions have been obtained. Practical recommendations concerning application of fibrous concrete mixture with reinforcer made of fiber «Miksarm» and nanoadditives have been developed; technology for production of steel fiber concrete with the use of complex modifying additives has been offered. Within the frame «Development and optimization of façade plaster compositions with increased durability based on simple and complex binders with fine natural and artificial fillers and research of their structure» it was proved that there is potential and practicability to apply nanotechnological fillers of local origins in façade plasters affecting positively on the structure and properties of the composition; compositions of façade plasters based on simple and complex binders modified with nanotechnological mineral fillers with high properties which provide required resistance when operated (bond resistance, compressive strength, cold resistance have been developed. As a result of systematic façade plaster optimization the share of construction market products has been minimized – binder savings are from 5 to 15%, in some compositions natural filler was

  9. Human Resources Construction and Management of Power Substation of Electric Power Enterprise%电力企业供电所人力资源建设与管理的探索

    Institute of Scientific and Technical Information of China (English)

    亓英善; 沈耐水

    2014-01-01

    企业的所有生产工作、活动都是在班组中完成的,供电所作为电力企业综合性的班组,是电力企业生产、经营的最基层班组。对整体企业来说,由于班组担负的任务最基础也很关键,所以电力企业努力做好基层班组的建设对企业的发展十分重要。%All production activities are completed in the work team. Power substation, as the comprehensive work team in electric power enterprises, is the most grass-root work team of production and operation. For the whole enterprise, the work team takes the most basic and important work, so it is essential for electric power enterprises to do well in work team construction.

  10. The Importance of psychological constructs for training volume and performance improvement. A structural equation model for youth speed skaters

    NARCIS (Netherlands)

    Elferink-Gemser, Marije T.; De Roos, Ilse; Torenbeek, Marjolein; Fokkema, Tryntsje; Jonker, Laura; Visscher, Chris

    2015-01-01

    To investigate the importance of self-regulated learning, motivation, and goal orientation for training volume and performance improvement, 63 talented Dutch speed skaters (n=35 male; n=28 female) aged 11 to 22 completed the Self-Regulation of Learning-Self-Report Scale (SRL-SRS; Toering et al.,

  11. The Importance of psychological constructs for training volume and performance improvement. A structural equation model for youth speed skaters

    NARCIS (Netherlands)

    Elferink-Gemser, Marije T.; De Roos, Ilse; Torenbeek, Marjolein; Fokkema, Tryntsje; Jonker, Laura; Visscher, Chris

    2015-01-01

    To investigate the importance of self-regulated learning, motivation, and goal orientation for training volume and performance improvement, 63 talented Dutch speed skaters (n=35 male; n=28 female) aged 11 to 22 completed the Self-Regulation of Learning-Self-Report Scale (SRL-SRS; Toering et al., 201

  12. The Importance of psychological constructs for training volume and performance improvement. A structural equation model for youth speed skaters

    NARCIS (Netherlands)

    Elferink-Gemser, Marije T.; De Roos, Ilse; Torenbeek, Marjolein; Fokkema, Tryntsje; Jonker, Laura; Visscher, Chris

    2015-01-01

    To investigate the importance of self-regulated learning, motivation, and goal orientation for training volume and performance improvement, 63 talented Dutch speed skaters (n=35 male; n=28 female) aged 11 to 22 completed the Self-Regulation of Learning-Self-Report Scale (SRL-SRS; Toering et al., 201

  13. Construction of an Americn mink Bacterial Artificial Chromosome (BAC) library and sequencing candidate genes important for the fur industry

    DEFF Research Database (Denmark)

    Anistoroaei, Razvan Marian; Hallers, Boudewijn ten; Nefedov, Michael;

    2011-01-01

    consisting of 18,432 clones spotted in duplicate, have been produced for hybridization screening and are publicly available. Overgo probes derived from expressed sequence tags (ESTs), representing 21 candidate genes for traits important for the mink industry, were used to screen the BAC library...

  14. Concentrated solar power on demand demonstration: Construction and operation of a 25 kW prototype

    Science.gov (United States)

    Gil, Antoni; Codd, Daniel S.; Zhou, Lei; Trumper, David; Calvet, Nicolas; Slocum, Alexander H.

    2016-05-01

    Currently, the majority of concentrated solar power (CSP) plants built worldwide integrate thermal energy storage (TES) systems which enable dispatchable output and higher global plant efficiencies. TES systems are typically based on two tank molten salt technology which involves inherent drawbacks such as parasitic pumping losses and electric tracing of pipes, risk of solidification and high capital costs. The concept presented in this paper is based on a single tank where the concentrated sunlight is directly focused on the molten salt. Hot and cold volumes of salt (at 565 °C and 280 °C, respectively) are axially separated by an insulated divider plate which helps maintain the thermal gradient. The concept, based on existing technologies, seeks to avoid the listed drawbacks as well as reducing the final cost of the TES system. In order to demonstrate its feasibility, Masdar Institute (MI) and Massachusetts Institute of Technology are developing a 25 kW prototype to be tested in the Masdar Solar Platform beam down facility.

  15. Composition of natural populations of yeast and yeast-like microorganisms in the area of Mochovce nuclear power plant construction

    Energy Technology Data Exchange (ETDEWEB)

    Stollarova, V. (Pedagogical Faculty, Nitra (Czechoslovakia))

    1984-01-01

    In 1982 to 1983, the composition was studied of natural populations of yeasts and yeast-like microorganisms in the area of the construction of the nuclear power plant at Mochovce. Samples were taken from fruits of plum trees (Prunus domestica L.) and grape vine (Vitis vinifera L.). Totally, 394 strains were isolated that were identified and classified according to the monography of Lodder into the following families and genera: Saccharomycetaceae (Saccharomyces, Hanseniaspora, Hansenula, Debaryomyces, Kluyveromyces, Pichia), Spermopthoraceae (Metschnikowia), Cryptococaceae (Torulopsis, Candida, Kloeckera). On plum tree fruits the species Hanseniaspora uvarum and Saccharomyces rosei and on grape vine fruits Hanseniaspora uvarum and Metschnikowia pulcherrima were most abundantly represented. The trees and plants were not treated with pesticides and on both the fruits of plum trees and grape vines the species Pullularia pullulans was frequently present that had never been isolated before from regularly treated vineyards.

  16. On Plan of Designing Nuclear Power Project Construction%核电项目工程施工设计计划编制浅探

    Institute of Scientific and Technical Information of China (English)

    倪忠雷

    2014-01-01

    核电项目投资大,建造周期长,工程施工设计计划是贯穿核电工程项目生命周期全过程,对项目范围、投资规模、进度计划、风险管理、质量控制具有全局性影响的项目管理活动。文章根据核电项目的特点,分析核电项目工程施工设计计划编制的要点,并通过具体项目的操作,对核电项目工程施工设计计划的编制进行了探讨。%Nuclear power project has a huge investment with long construction period. Plan of designing nuclear power project construction runs through the whole process of nuclear power engineering project, which has overall and broad influence on the scope of the project, the scale of investment, schedule, risk management and quality control. According to the characteristics of the nuclear power project, this article analyzes the key points of plan of designing nuclear power project construction, and discusses how to develop the plan of designing nuclear power project construction through specific project operation.

  17. Importance of the validation of saving technologies of electric power; Importancia de la validacion de tecnologias ahorradoras de energia electrica

    Energy Technology Data Exchange (ETDEWEB)

    Valer Negrete, Adrian [Programa de Ahorro de Energia del Sector Electrico (PAESE), Comision Federal de Electricidad (Mexico)

    2003-07-01

    Within the Programs of Energy Saving it is fundamental the search and application of new technologies, with which this saving can be obtained, selected with base in their technical characteristics that allow to reduce to the consumptions and demands of power, without damaging the electric networks nor the transformers of the Comision Federal de Electricidad. It is important that the investments which are made count on attractive periods of capital recovery, in comparison with the useful life of the product, reason why the knowledge and price of the new technologies will be parameters to consider in an important manner, creating the need of conducting tests that verify the veracity of the information of the supplier, resulting in certain cases, the change of design of these technologies, so that thus they fulfill the engaged characteristics. This paper indicates the characteristics that the new saving technologies of electrical energy must fulfill and the tests and parameters to consider their evaluation. [Spanish] Dentro de los Programas de Ahorro de Energia es fundamental la busqueda y aplicacion de nuevas tecnologias, con las que se pueda obtener dicho ahorro, seleccionadas con base en sus caracteristicas tecnicas que permitan reducir los consumos y demandas de potencia, sin danar las redes ni transformadores de la Comision Federal de Electricidad. Es importante que las inversiones que se realicen cuenten con periodos de recuperacion de capital atractivos, comparados con la vida util del producto, por lo que el conocimiento y precio de las nuevas tecnologias seran parametros a considerar de manera importante, creandose la necesidad de realizar pruebas que verifiquen la veracidad de la informacion del proveedor, resultando en determinados casos, el cambio de diseno de dichas tecnologias, para que asi cumplan las caracteristicas prometidas. Este trabajo indica las caracteristicas que deben cumplir las nuevas tecnologias ahorradoras de energia electrica y las

  18. Construct validity of adolescents' self-reported big five personality traits: importance of conceptual breadth and initial validation of a short measure.

    Science.gov (United States)

    Morizot, Julien

    2014-10-01

    While there are a number of short personality trait measures that have been validated for use with adults, few are specifically validated for use with adolescents. To trust such measures, it must be demonstrated that they have adequate construct validity. According to the view of construct validity as a unifying form of validity requiring the integration of different complementary sources of information, this article reports the evaluation of content, factor, convergent, and criterion validities as well as reliability of adolescents' self-reported personality traits. Moreover, this study sought to address an inherent potential limitation of short personality trait measures, namely their limited conceptual breadth. In this study, starting with items from a known measure, after the language-level was adjusted for use with adolescents, items tapping fundamental primary traits were added to determine the impact of added conceptual breadth on the psychometric properties of the scales. The resulting new measure was named the Big Five Personality Trait Short Questionnaire (BFPTSQ). A group of expert judges considered the items to have adequate content validity. Using data from a community sample of early adolescents, the results confirmed the factor validity of the Big Five structure in adolescence as well as its measurement invariance across genders. More important, the added items did improve the convergent and criterion validities of the scales, but did not negatively affect their reliability. This study supports the construct validity of adolescents' self-reported personality traits and points to the importance of conceptual breadth in short personality measures.

  19. Muscle power is an important measure to detect deficits in muscle function in hip osteoarthritis: a cross-sectional study.

    Science.gov (United States)

    Bieler, Theresa; Magnusson, Stig Peter; Christensen, Helle Elisabeth; Kjaer, Michael; Beyer, Nina

    2017-07-01

    To investigate between-leg differences in hip and thigh muscle strength and leg extensor power in patients with unilateral hip osteoarthritis. Further, to compare between-leg differences in knee extensor strength and leg extensor power between patients and healthy peers. Seventy-two patients (60-87 years) with radiographic and symptomatic hip osteoarthritis not awaiting hip replacement and 35 healthy peers (63-82 years) were included. Hip and thigh muscle strength and leg extensor power were measured in patients and knee extensor strength and leg extensor power in healthy. The symptomatic extremity in patients was significantly (p muscles (8-17%), knee extensors (11%) and leg extensor power (19%). Healthy older adults had asymmetry in knee extensor strength (6%, p power. Patients had generalized weakening of the affected lower extremity and numerically the largest asymmetry was evident for leg extensor power. In contrast, healthy peers had no asymmetry in leg extensor power. These results indicate that exercise interventions focusing on improving leg extensor power of the symptomatic lower extremity and reducing asymmetry may be beneficial for patients with hip osteoarthritis. Implications for Rehabilitation Even in patients with mild symptoms not awaiting hip replacement a generalized muscle weakening of the symptomatic lower extremity seems to be present. Between-leg differences in leg extensor power (force × velocity) appears to be relatively large (19%) in patients with unilateral hip osteoarthritis in contrast to healthy peers who show no asymmetry. Compared to muscle strength the relationship between functional performance and leg extensor power seems to be stronger, and more strongly related to power of the symptomatic lower extremity. Our results indicate that exercise interventions focusing on improving leg extensor power of the symptomatic lower extremity and reducing asymmetry may be beneficial for patients with mild symptoms not awaiting hip

  20. On Capital Construction Stage Tax Administration for Thermal Power Enterprise%火力发电企业基建期税务如何进行管理

    Institute of Scientific and Technical Information of China (English)

    余夏勇

    2015-01-01

    本文分析了火力发电企业税务管理的动机和应遵循的原则,基建期税务管理的方法,结合火力发电企业基建期的实际情况,探讨了火力发电企业在基建期应如何通过税务管理为企业创造价值。%This paper analyzes the motives and the principle of the thermal power enterprise tax administration and the tax administration methods in capital construction stage. Combined with the actual situation of the thermal power enterprises in capital construction stage, this paper discusses the measures for thermal power enterprises to create value through tax administration in the capital construction stage.

  1. Ways and suggestions for the class cultural construction of modern power supply enterprises%试论现代供电企业班组文化建设的途径与建议

    Institute of Scientific and Technical Information of China (English)

    夏传龙

    2013-01-01

    Paying more attention to the team cultural construction plays an important role for the healthy development of the modern power supply enterprises.By analysing the present situation of team cultural construction in the power supply company where the anthor works,this paper concludes that the team cultural construction is effective and can improve the work efficiency.In view of the current situation,it points out the significance of the team cultural construction to the cultural construction of enterprises,discusses the basic ways of team cultural construction of the modern power supply enterprises and puts forward four suggestions.%注重班组文化建设,对于现代供电企业的健康发展起着积极的重要作用。文章以笔者所在的供电公司班组文化现状为个案,通过分析总结与归纳,认为供电公司在班组文化建设方面做出的尝试是有成效的,能提高工作效率。针对当前状况,指明了班组文化建设对企业文化建设的意义,探讨了现代供电企业班组文化建设的基本途径,同时提出了4点建议。

  2. Soft Power Construction of Subject Librarian Team in the Crossover Services Environment%跨界服务情境下的学科馆员团队软实力建设

    Institute of Scientific and Technical Information of China (English)

    李玲; 吴鸣; 张冬荣; 青秀玲

    2012-01-01

    Crossover services have brought many new challenges and new demands on soft power construction of the subject librarian team. The soft power construction of subject librarian team which includes core values, qualities of staff, team culture, rules and regulations, collaborative mechanisms and other factors such as harmony of the internal and external environment, has become an important part of the core competitiveness of subject librarian team. Taking the subject librarian team of National Science Library as example, this paper introduces some practical experiences on soft power construction and the effects how the soft power construction promotes hard power development.%认为图书馆跨界服务带来的诸多挑战,对学科馆员团队软实力建设提出新的要求。指出以团队核心价值观、员工综合素质、团队文化、制度体系、协同机制及内外部环境和谐度等要素为核心的团队软实力建设,已成为打造学科馆员团队核心竞争力的重要组成部分。介绍中国科学院国家科学图书馆学科馆员团队积极创新、应对挑战,进行团队软实力建设的做法以及以软实力建设促进硬实力发展的实践经验。

  3. 江坪河水电站大功率水泵串联排水施工技术%Construction Technology of Drainage with High Powered Water Pump in Series in Jiangpinghe Hydroelectric Power Station

    Institute of Scientific and Technical Information of China (English)

    郭庆清; 王燕; 周贤

    2012-01-01

    There are many gullies in dam area of Jiangpinghe Hydroelectric Power Station. The catchment area of gullies is large. The foundation excavation are submerged on the torrential rain, and construction of foundation excavation and dam filling are influenced. Combined with gully and topographic conditions and considering restriction of construction safety and construction time, drainage with high powered water pump in series method is adopted for foundation excavation water. The authors introduce construction principle of high powered water pump in series, pumps arrangement, construction process and construction attentions.%江坪河水电站坝区内存在多处冲沟,汇水面积大,在特大暴雨下,基坑被淹没,影响后续基坑开挖和大坝填筑施工.结合坝区冲沟现状及地形情况限制,在充分考虑施工安全和进度的基础上,确定采用大功率水泵串联的方式进行基坑积水强排施工.详细介绍了大功率水泵串联施工原理、现场水泵配置与布置情况、施工工艺及使用操作注意事项.

  4. Proposals for the construction of space systems based on small spacecraft and a transport and power module with a nuclear power plant

    Science.gov (United States)

    Barabanov, A. A.; Papchenko, B. P.; Pichkhadze, K. M.; Rebrov, S. G.; Semenkin, A. V.; Sysoev, V. K.; Yanchur, S. V.

    2016-12-01

    The concept of interconnected satellite systems for various scientific and engineering applications based on small spacecraft and a transport and power module with a nuclear power plant is discussed. The system is connected by laser radiation from the transport and power module that supplies power to small satellites, establishes high-speed data transmission, and is used to perform high-precision measurements of intersatellite distances. Several practical use cases for such a connected system are considered.

  5. On the Internal System Reform of Shanghai Electric Power Construction Co., Ltd%浅谈上海电建内部体制改革

    Institute of Scientific and Technical Information of China (English)

    夏震文

    2015-01-01

    近年来,国内火电建设市场逐步萎缩,施工能力过剩的问题越来越严峻,僧多粥少的局面下,传统的火电施工企业面临着竞争越来越激烈,承揽的施工任务越来越艰难,价格越来越低,成本压力越来越大,生存和发展受到严峻的考验。作为竞争性的企业,火电施工企业必须主动变革,通过转型升级适应市场环境和国家经济发展方式的变化,刻不容缓。%In recent years, the domestic thermal power construction market is gradually shrinking, and the construction overcapacity problem becomes more severe. Under this situation, conventional thermal power construction enterprises are facing increasingly fierce competition, their construction task becomes more difficult, the price is getting lower, and the cost pressure is increasing, so the survival and development has been sorely tested. As competitive enterprises, thermal power construction enterprises must take the initiative change and adapt to the changes of the market environment and economic development way through transformation and upgrading.

  6. Constructing an Evidence-Base for Future CALL Design with "Engineering Power": The Need for More Basic Research and Instrumental Replication

    Science.gov (United States)

    Handley, Zöe

    2014-01-01

    This paper argues that the goal of Computer-Assisted Language Learning (CALL) research should be to construct a reliable evidence-base with "engineering power" and generality upon which the design of future CALL software and activities can be based. In order to establish such an evidence base for future CALL design, it suggests that CALL…

  7. Information management system for the analysis of the program of electric power transmission construction; Sistema gerencial de informacao para analise do programa de obras de transmissao

    Energy Technology Data Exchange (ETDEWEB)

    Peres, Luiz A. Pecorelli; Lima Junior, Moacir P.; Kayat, Julio; Berer, Ricardo; Sondermann, Luiz O. [FURNAS, Rio de Janeiro, RJ (Brazil)

    1993-12-31

    The management of an implementation and coordination program for electric power transmission lines construction needs to have access to up to date information in several areas. Aiming to attend these basic requisites a data base computer program was developed. This work describes such program 7 refs., 4 figs.

  8. A triadic approach to assessment centre’s construct validity; The effect of categorising dimensions into a feeling, thinking, power taxonomy

    NARCIS (Netherlands)

    N.J. Kolk; M.Ph. Born (Marise); H. van der Flier (Henk)

    2004-01-01

    textabstractThis study examined the influence on construct validity of implementing the triad Feeling, Thinking and Power as a taxonomy for behavioural dimensions in assessment centre (AC) exercises. A sample of 1.567 job applicants participated in an AC specifically developed according to this taxo

  9. Intimate Partner Violence and Its Association With Self-Determination Needs and Gender-Power Constructs Among Rural South African Women

    NARCIS (Netherlands)

    Mpondo, Feziwe; Ruiter, Robert A C; van den Borne, Bart; Reddy, Priscilla S

    2016-01-01

    This study aimed to identify psychosocial correlates of intimate partner violence (IPV) by using constructs derived from the self-determination theory (SDT) and gender-power scales. Cross-sectional data (N = 238) were collected from women in the Eastern Cape, South Africa, and were used to test a st

  10. Application of Building Mobile Technology in Quality Management of Power Grid Construction Project%建筑移动技术在电网建设工程质量管理中的应用

    Institute of Scientific and Technical Information of China (English)

    王伟; 张彦; 马梦朝; 刘宁

    2016-01-01

    Standard technology application has become an important part of power grid construction project quality management,this paper built construction technology standard control platform with Internet thinking by the aid of building mobile technology. The platform achieved the closed-loop management of the whole process of application of construction technology standard by means of technical standards query and key data management. The platform improved the engineering quality management efficiency and effectiveness, strengthened the power grid construction project quality control ability and it has achieved remarkable economic and social benefits.%标准工艺应用已成为电网建设工程质量管理的重要组成部分,本文运用互联网思维将建筑移动技术和标准工艺应用相结合,构建了标准工艺应用管控平台。该平台通过技术标准查询、关键数据管控等多种手段实现了标准工艺应用的全过程闭环管理,提升了工程质量管理效率和效益,增强了电网建设工程的质量管控能力,取得了显著的经济和社会效益。

  11. 基于模糊多层次综合评价的风电建设项目社会评价%Social Evaluation of Wind Power Construction Project Based on Fuzzy Multitier Comprehensive Assessment

    Institute of Scientific and Technical Information of China (English)

    闫建文; 徐传召; 文位忠

    2011-01-01

    根据风电建设项目自身的特点运用模糊数学的理论和方法,建立风电建设项目社会评价的模糊多层次综合评价模型,建立风电建设项目社会评价的指标体系.运用AHP的基本思想,创造性的使其与模糊多层次综合评价模型中指标分层思想相结合,对指标分层,确定各指标权重.最后,运用该模型对某风电建设项目进行社会评价,验证其实用性,为项目的投资决策和资本运作提供科学的依据.%Based on wind power construction project' s own characteristics and using fuzzy math' s theory and method, fuzzy multi-tier comprehensive assessment model concerning social evaluation of wind power construction project and index system of social evaluation of wind power construction project are established. Using basic philosophy of AHP can creatively combine the basic philosophy with index tier in the fuzzy multi-tier comprehensive model so that index can be ranked and judge each index' s importance. Finally, this model is used to carry out social assessment of some wind-power construction projects and to test its practicality, whereby providing the scientific basis for the project investment decision-taking and capital operation.

  12. ComfortPower. Design, construction and evaluation of a combined fuel-cell and heat pump system

    Energy Technology Data Exchange (ETDEWEB)

    Silversand, Fredrik (Catator AB, Lund (Sweden))

    2010-12-15

    Catator AB has constructed, commissioned and evaluated a combined fuel-cell and heat-pump system (ComfortPower). The basic idea behind the project was to demonstrate the possibility to achieve ultrahigh thermal efficiencies when combining fuel-cell technologies and heat pumps. Moreover, the system should provide a great flexibility with respect to the fuel mix and should in addition to heat provide surplus electricity and cooling. The system was built on a HT-PEM platform (high temperature polymer electrolyte fuel cell from Serenergy a/s), which was operated by Catators proprietary Optiformer technology. The power generator was combined with a heat pump module (F1145-5, 230 V), supplied by Nibe. The system was packaged into a cabinet (1.65 x 0.6 x 0.6 m) comprising the power module, the heat pump, all necessary balance-of-plant components and the control system. The power output from the fuel-cell system was around 1.35 kW, which enabled operation of the heat pump compressor. By utilizing surplus heat energy from the fuel cell it was possible to achieve a favourable operation point in the heat pump system, resulting in a high overall COP (coefficient of performance). The heat output from the system was as high as 10 kW whereas 6 kW cooling could be provided. The thermal efficiencies measured in experiments were normally around 200%, calculated on the lower heating value of the fuel. A number of fuels have been investigated in the fuel cell system, including both gaseous (natural gas/LPG) and liquid fuels (alcohols and kerosene). Indeed, the system has a wide fuel flexibility, which opens up for a variety of applications in campus villages and buildings. This study has demonstrated the possibility to reduce the carbon dioxide footprint by a factor of 2 over conventional boilers in heating applications. In addition the unit can be operated on a variety of fuels and can produce cooling and electricity in addition to heat. A fully working system has been designed

  13. Automatic differentiation method for numerical construction of the rotational-vibrational Hamiltonian as a power series in the curvilinear internal coordinates using the Eckart frame.

    Science.gov (United States)

    Yachmenev, Andrey; Yurchenko, Sergei N

    2015-07-07

    We present a new numerical method to construct a rotational-vibrational Hamiltonian of a general polyatomic molecule in the Eckart frame as a power series expansion in terms of curvilinear internal coordinates. The expansion of the kinetic energy operator of an arbitrary order is obtained numerically using an automatic differentiation (AD) technique. The method is applicable to molecules of arbitrary size and structure and is flexible for choosing various types of internal coordinates. A new way of solving the Eckart-frame equations for curvilinear coordinates also based on the AD technique is presented. The resulting accuracy of the high-order expansion coefficients for the kinetic energy operator using our numerical technique is comparable to that obtained by symbolic differentiation, with the advantage of being faster and less demanding in memory. Examples for H2CO, NH3, PH3, and CH3Cl molecules demonstrate the advantages of the curvilinear internal coordinates and the Eckart molecular frame for accurate ro-vibrational calculations. Our results show that very high accuracy and quick convergence can be achieved even with moderate expansions if curvilinear coordinates are employed, which is important for applications involving large polyatomic molecules.

  14. Automatic differentiation method for numerical construction of the rotational-vibrational Hamiltonian as a power series in the curvilinear internal coordinates using the Eckart frame

    Science.gov (United States)

    Yachmenev, Andrey; Yurchenko, Sergei N.

    2015-07-01

    We present a new numerical method to construct a rotational-vibrational Hamiltonian of a general polyatomic molecule in the Eckart frame as a power series expansion in terms of curvilinear internal coordinates. The expansion of the kinetic energy operator of an arbitrary order is obtained numerically using an automatic differentiation (AD) technique. The method is applicable to molecules of arbitrary size and structure and is flexible for choosing various types of internal coordinates. A new way of solving the Eckart-frame equations for curvilinear coordinates also based on the AD technique is presented. The resulting accuracy of the high-order expansion coefficients for the kinetic energy operator using our numerical technique is comparable to that obtained by symbolic differentiation, with the advantage of being faster and less demanding in memory. Examples for H2CO, NH3, PH3, and CH3Cl molecules demonstrate the advantages of the curvilinear internal coordinates and the Eckart molecular frame for accurate ro-vibrational calculations. Our results show that very high accuracy and quick convergence can be achieved even with moderate expansions if curvilinear coordinates are employed, which is important for applications involving large polyatomic molecules.

  15. Green Construction Evaluation System of Thermal Power Projects%火电项目绿色施工评价体系研究

    Institute of Scientific and Technical Information of China (English)

    陈志华; 樊丽君

    2011-01-01

    Green construction has been vigorously promoted in China; however there is still no unified standard for the evaluation system of green construction. Furthermore, the evaluation of industrial projects is not involved so far. Thermal power project construction is comprehensive; it covers a large area and set, its plane is complicated, involves large volume of equipment as well as concrete elements, and needs large equipment lifting, etc. These characteristics make the project waste resources, and pollute environmental that is worse than the other projects during the construction. Therefore, for controlling the energy consumption and environmental pollution caused by thermal power project, the green construction is necessary. On the basis of Green Construction Guide, combined with the characteristics of thermal power projects, from aspects of construction management and construction site management technology, the indicators that reflect the requirements of the green thermal power project involving four sections and one environmental protection are established, and the application layer analysis is used and the comprehensive assessment model for green construction is given.%绿色施工已在我国大力推广,然而对于绿色施工的评价目前还没有一个统一的标准,对于工业项目的绿色施工评价更是空白.火电项目的施工综合性强、占地面积大、施工平面布置复杂、大型设备多、混凝土构件体量大、需要大型的设备进行吊装等.这些特点使其在施工过程中造成的资源浪费、环境污染严重.因此控制火电工程的能源消耗与环境污染,实施绿色施工非常必要.本文以《绿色施工导则》为基础,结合火电项目的特点,从施工技术管理和施工现场管理两个大的方面选择能够反映火电绿色施工要求的“四节-环保”指标,运用层次分析法,给出火电项目绿色施工评价模型,通过定量与定性的打分给出了评判火电项目绿色标准.

  16. Discussions on Impacts of Wind Power Construction in Gansu on Power Grid Operation%甘肃风电建设对电网经营影响探讨

    Institute of Scientific and Technical Information of China (English)

    贺静; 王维洲; 吴悦

    2011-01-01

    甘肃酒泉516万kW风电机组建成投产在即,风电送出和调峰需求对电网产生了很大影响,风电一期750kV外送工程使电网投资大幅提高,同时存在购电成本和运行维护费用增加、调峰电厂经济补偿以及跨省电力交易等经营管理方面的问题。针对这些问题,深入分析了甘肃省风电建设对电网投资和经营管理造成的影响,并对电网企业如何在大规模风电建设前提下合理经营提出了建议。%As the 5 160 MW generation capacity of the Gansu Jiuquan wind farm will soon be completed and put into operation, the wind power transmission and the demand for peaking capacity will have significant impacts on the power grid. The first phase 750 kV outgoing project for wind power has already led to a substantial increase of investment in the power grid, and also given rise to problems such as increases in power purchase cost, operation and maintenance cost, economic compensation for peaking power plants and inter-provincial electricity trade, as well as other management issues. To solve these problems, this research conducts an analysis on the impact of the wind power construction of Gansu on the power grid investment as well as on operation and management. And advice is proposed on rational management of power transmission enterprises in the context of the large scale wind power construction.

  17. Tachibana Bay Electric Power Plant. Design and construction of pipe-laying works on the sea bottom for the industrial water; Tachibanawan hatsudensho. Kogyo yosui kaitei haikan koji no sekkei to seko

    Energy Technology Data Exchange (ETDEWEB)

    Shiono, A.; Tanaka, K. [Shikoku Electric Power Co., Inc., Takamatsu (Japan)

    1997-09-01

    At Kokatsu Island in the Bay of Tachibana, Anan City, Tokushima Prefecture, Tachibana Bay coal burning thermal electric power plants are now under construction. This is a joint venture of Shikoku electric Power Company and Dengen-kaihatsu (Power Resources Development Co.) with the objective of securing power supply in and after the year of 2000. The former plans one 700,000kW generator and the latter plans two 1.05 million kW generators totalling 2.8 million kW in terms of plant capacity. As for the above plants, the industrial water of 14,000m{sup 3} per day is required for various equipment including exhaust gas desulfurizers, etc. and the receiving and sending point of this industrial water is located at Ohgata Area, the northern opposite coast of this island. It is necessary to lay water pipes in the sea area from the above point up to Kokatsu Island, but this sea area lies within the important harbor designated for lanes and anchorages of vessels, hence traffic of vessels is heavy and restrictive conditions are many. Having studied various construction methods, the chain cutter simultaneous laying and burying method has been adopted. Three large calibre submarine water conveyance pipes, each of which is 250mm in inner diameter and about 2km long, have been built and the works have been completed at the end of June, 1997. 12 figs., 3 tabs.

  18. 水厂建后管理的重要性%On importance of management after construction of water supply plants

    Institute of Scientific and Technical Information of China (English)

    李连伟

    2012-01-01

    针对农村水厂建后管理的重要性进行了探讨,分析了导致水厂不能良性运转的原因,并提出了解决水费收缴,管理混乱等问题的具体措施,以期完善农村水厂管理体制,建立农村水厂良好的运行机制。%The study explores the importance of the management after the construction of the rural water supply plants, analyzes the reasons for the bad operation of the water supply plant, and points out the factual measures to solve some problems, such as the gathering of water fees and the chaotic management, so as to improve the management system of the water supply plants in rural areas, and to construct the better operation system for these water supply plants.

  19. Parental LTRs are important in a construct of a stable and efficient replication-competent infectious molecular clone of HIV-1 CRF08_BC.

    Science.gov (United States)

    Zhang, Qiwei; Zhang, Xiaomin; Wu, Hao; Seto, Donald; Zhang, Hao-Jie; Chen, Zhiwei; Wan, Chengsong; Zheng, Bo-Jian

    2012-01-01

    Circulating recombinant forms (CRFs) of HIV-1 have been identified in southern China in recent years. CRF08_BC is one of the most predominant subtypes circulating in China. In order to study HIV subtype biology and to provide a tool for biotechnological applications, the first full-length replication-competent infectious molecular clone harboring CRF08_BC is reported. The construction of this clone pBRGX indicates that a moderate-copy number vector is required for its amplification in E. coli. In addition, it is shown that the parental CRF08_BC LTRs are important for generating this efficient replication-competent infectious clone. These observations may aid in the construction of infectious clones from other subtypes. Both the pBRGX-derived virus and its parental isolate contain CCR5 tropism. Their full-length genomes were also sequenced, analyzed, compared and deposited in GenBank (JF719819 and JF719818, respectively). The availability of pBRGX as the first replication-competent molecular clone of CRF08_BC provides a useful tool for a wide range of studies of this newly emergent HIV subtype, including the development of HIV vaccine candidates, antiviral drug screening and drug resistance analysis.

  20. 面向大数据的供电企业电力营销服务体系构建分析%Construction Analysis of Power Marketing Service System Based on Big Data

    Institute of Scientific and Technical Information of China (English)

    赵晓东

    2016-01-01

    围绕大数据的特点和价值,分析了大数据为电力营销服务带来的价值、大数据对电力营销的影响以及目前供电企业发展大数据需要解决的问题,并提出了重视规划大数据战略、重视现有资源的整合和共享、建立企业内部统一的数据规范和数据标准、电力营销平台系统建设和人才培养等建议。%Around big data′s characteristic and value, analyze the value of the big data for marketing services, the influence of big data to power marketing, and the problems power supply enterprises need to solve in the development of big data, put forward some suggestions, including: attaches great importance to the planning strategy of big data, attaches great importance to the existing resources integration and sharing, and data specification of unified platform construction, electric power marketing system and talents construction, etc.

  1. Does constructive neutral evolution play an important role in the origin of cellular complexity? Making sense of the origins and uses of biological complexity.

    Science.gov (United States)

    Speijer, Dave

    2011-05-01

    Recently, constructive neutral evolution has been touted as an important concept for the understanding of the emergence of cellular complexity. It has been invoked to help explain the development and retention of, amongst others, RNA splicing, RNA editing and ribosomal and mitochondrial respiratory chain complexity. The theory originated as a welcome explanation of isolated small scale cellular idiosyncrasies and as a reaction to 'overselectionism'. Here I contend, that in its extended form, it has major conceptual problems, can not explain observed patterns of complex processes, is too easily dismissive of alternative selectionist models, underestimates the creative force of complexity as such, and--if seen as a major evolutionary mechanism for all organisms--could stifle further thought regarding the evolution of highly complex biological processes. Copyright © 2011 WILEY Periodicals, Inc.

  2. Effects of the construction of Scroby Sands offshore wind farm on the prey base of Little tern Sternula albifrons at its most important UK colony.

    Science.gov (United States)

    Perrow, Martin R; Gilroy, James J; Skeate, Eleanor R; Tomlinson, Mark L

    2011-08-01

    Despite widespread interest in the impacts of wind farms upon birds, few researchers have examined the potential for indirect or trophic (predator-prey) effects. Using surface trawls, we monitored prey abundance before and after construction of a 30 turbine offshore wind farm sited close to an internationally important colony of Little terns. Observations confirmed that young-of-the-year clupeids dominated chick diet, which trawl samples suggested were mainly herring. Multivariate modelling indicated a significant reduction in herring abundance from 2004 onwards that could not be explained by environmental factors. Intensely noisy monopile installation during the winter spawning period was suggested to be responsible. Reduced prey abundance corresponded with a significant decline in Little tern foraging success. Unprecedented egg abandonment and lack of chick hatching tentatively suggested a colony-scale response in some years. We urge a precautionary approach to the timing and duration of pile-driving activity supported with long-term targeted monitoring of sensitive receptors.

  3. Several Important Links of Management in University's Infrastructure Construction%做好高校基建管理的几个重要环节

    Institute of Scientific and Technical Information of China (English)

    杨海勇; 宓林

    2011-01-01

    The management of university infrastructure project has its own characteristics. This paper discusses some important aspects of the system construction, management in design stage, tendering and bidding management, project management, building energy-saving applications, informatization and so on, to expect to get some good views.%高校基建项目管理有其自身的特点,文中从制度建设、设计阶段管理、招投标管理、项目管理、建筑节能应用、信息化建设等几个重要环节入手做了一些研究讨论,以期抛砖引玉.

  4. Design, construction and operational results of the IGBT controlled solid state modulator high voltage power supply used in the high power RF systems of the Low Energy Demonstration Accelerator of the accelerator production of tritium (APT) project

    Energy Technology Data Exchange (ETDEWEB)

    Bradley, J.T. III; Rees, D.; Przeklasa, R.S. [Los Alamos National Lab., NM (United States); Scott, M.C. [Continental Electronics Corp., Dallas, TX (United States)

    1998-12-31

    The 1700 MeV, 100 mA Accelerator Production of Tritium (APT) Proton Linac will require 244 1 MW, continuous wave RF systems. 1 MW continuous wave klystrons are used as the RF source and each klystron requires 95 kV, 17 A of beam voltage and current. The cost of the DC power supplies is the single largest percentage of the total RF system cost. Power supply reliability is crucial to overall RF system availability and AC to DC conversion efficiency affects the operating cost. The Low Energy Demonstration Accelerator (LEDA) being constructed at Los Alamos National Laboratory (LANL) will serve as the prototype and test bed for APT. The design of the RF systems used in LEDA is driven by the need to field test high efficiency systems with extremely high reliability before APT is built. The authors present a detailed description and test results of one type of advanced high voltage power supply system using Insulated Gate Bipolar Transistors (IGBTs) that has been used with the LEDA High Power RF systems. The authors also present some of the distinctive features offered by this power supply topology, including crowbarless tube protection and modular construction which allows graceful degradation of power supply operation.

  5. The importance of smart power and public diplomacy of People’s Republic of China regarding international cooperation

    OpenAIRE

    Martins, Marco

    2013-01-01

    No sentido de estabelecer e expandir a influência chinesa enquanto BRIC, o poder político tem vindo a desenvolver uma nova estratégia que visa a integração e a combinação da utilização do hard com o soft power cujo resultado assume as formas de smart power e de diplomacia pública como resposta aos actuais desafios que requerem soluções transnacionais tais como a estabilidade financeira global, a alteração climática, a questão da insegurança energética e o terrorismo. De facto, este artigo pre...

  6. The effectiveness of power-generating complexes constructed on the basis of nuclear power plants combined with additional sources of energy determined taking risk factors into account

    Science.gov (United States)

    Aminov, R. Z.; Khrustalev, V. A.; Portyankin, A. V.

    2015-02-01

    The effectiveness of combining nuclear power plants equipped with water-cooled water-moderated power-generating reactors (VVER) with other sources of energy within unified power-generating complexes is analyzed. The use of such power-generating complexes makes it possible to achieve the necessary load pickup capability and flexibility in performing the mandatory selective primary and emergency control of load, as well as participation in passing the night minimums of electric load curves while retaining high values of the capacity utilization factor of the entire power-generating complex at higher levels of the steam-turbine part efficiency. Versions involving combined use of nuclear power plants with hydrogen toppings and gas turbine units for generating electricity are considered. In view of the fact that hydrogen is an unsafe energy carrier, the use of which introduces additional elements of risk, a procedure for evaluating these risks under different conditions of implementing the fuel-and-hydrogen cycle at nuclear power plants is proposed. Risk accounting technique with the use of statistical data is considered, including the characteristics of hydrogen and gas pipelines, and the process pipelines equipment tightness loss occurrence rate. The expected intensities of fires and explosions at nuclear power plants fitted with hydrogen toppings and gas turbine units are calculated. In estimating the damage inflicted by events (fires and explosions) occurred in nuclear power plant turbine buildings, the US statistical data were used. Conservative scenarios of fires and explosions of hydrogen-air mixtures in nuclear power plant turbine buildings are presented. Results from calculations of the introduced annual risk to the attained net annual profit ratio in commensurable versions are given. This ratio can be used in selecting projects characterized by the most technically attainable and socially acceptable safety.

  7. ANALYSIS AND FORECASTING OF CONSEQUENCES PERTAINING TO PRICE CHANGES ON IMPORTED NATURAL GAS BY POWER-GENERATING ENTERPRISES OF THE REPUBLIC OF BELARUS

    Directory of Open Access Journals (Sweden)

    M. P. Коndratiev

    2008-01-01

    Full Text Available The analysis of consequences of price changes for imported natural gas used at enterprises involved in energy generation has been carried out by example of one of Belarusian regional power supply systems.The offers for maximum compensation of economic losses at the expense of price increase for the gas supplied by Russia have been proposed in the paper.

  8. 电改背景下的重要电力用户认定规则研究%Research on Determination Dules of Important Power Users Under the background of Electric Power System Reform

    Institute of Scientific and Technical Information of China (English)

    钱峰; 张佳毅; 刘学江; 汪芦斌

    2016-01-01

    With the deepening of electric power system reform ,electric sales gradually relaxing ,traditional power supply company will face increasingly fierce market competition .In the past ,When the power supply company cognizanced of the important power users ,it paid more attention to in the description of the user's in‐fluence and power hazards such as qualitative ,with little consideration of the user to the enterprise market val‐ue ,including with power size and development potential of quantifiable indicators .The rule was not conducive to market competitionthe of power supply enterprise after the electric power system reform .Reference to the current situation of the important power users in Shanghai ,the introduction and study of the operational indi‐cators ,and use the AHP method to improve the traditional qualitative identification rules for quantitative de‐termination .%随着电力体制改革的深化,售电侧逐渐放开,传统供电公司将要面临愈加激烈的市场竞争。以往供电公司对于重要电力用户的认定过多注重于用户的影响力和停电危害等定性描述,较少考虑用户对企业的市场价值,包括用电量大小和发展潜力等可量化指标。这种认定规则不利于电改后供电企业的市场竞争。参考了上海市重要电力用户认定现状,引入并研究了经营性认定指标,并利用 AHP方法将传统的定性认定规则改进完善为定量认定。

  9. The importance of input variables to a neural network fault-diagnostic system for nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Lanc, T.L.

    1992-12-31

    This thesis explores safety enhancement for nuclear power plants. Emergency response systems currently in use depend mainly on automatic systems engaging when certain parameters go beyond a pre-specified safety limit. Often times the operator has little or no opportunity to react since a fast scram signal shuts down the reactor smoothly and efficiently. These accidents are of interest to technical support personnel since examining the conditions that gave rise to these situations help determine causality. In many other cases an automated fault-diagnostic advisor would be a valuable tool in assisting the technicians and operators to determine what just happened and why.

  10. The importance of input variables to a neural network fault-diagnostic system for nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Lanc, T.L.

    1992-01-01

    This thesis explores safety enhancement for nuclear power plants. Emergency response systems currently in use depend mainly on automatic systems engaging when certain parameters go beyond a pre-specified safety limit. Often times the operator has little or no opportunity to react since a fast scram signal shuts down the reactor smoothly and efficiently. These accidents are of interest to technical support personnel since examining the conditions that gave rise to these situations help determine causality. In many other cases an automated fault-diagnostic advisor would be a valuable tool in assisting the technicians and operators to determine what just happened and why.

  11. Construction Method for the Concept Maps of Power Grid Tacit-Knowledge%电网隐性知识的概念图构建方法

    Institute of Scientific and Technical Information of China (English)

    王耀辉; 李越阳

    2013-01-01

    Tacit knowledge is the key resources to form the core competitiveness for enterprises, and the power grid tacit knowledge is not conductive to share and spread because of its variety and immensity. For this, this paper analyzes the power grid tacit knowledge and proposes a concept map construction method which constructs concept maps of tacit knowledge in a power grid environment. The construction process includes the concept extracted, analysis associated and visual mapping combined with PFNET. Through constructing a concept map of the operation and maintenance area, this method simplifies the construction of knowledge structures, further definescontacts between explicit knowledge, and makes the knowledge easy to exchange and share.%隐性知识构成企业核心竞争力的关键,而电网隐性知识种类繁杂,数量巨大,不利于传播交流。针对此,文中首先分析了电网隐性知识,并以此为切入点,提出了一种概念图构建方法,构建电网环境下的隐性知识概念图。构建流程包括概念提取,关联分析和结合PFNET的可视化映射三个步骤。最后通过构建线路运行与维护领域下的概念图,验证了该方法构建的概念图简化了知识结构,进一步明确知识间的主要联系,便于知识的交流与共享。

  12. 试论加强文化软实力建设与提升中国文化产业竞争力%Strengthening the Construction of Cultural Soft Power to Enhance the Chinese Cultural Industry Competitiveness

    Institute of Scientific and Technical Information of China (English)

    王威; 赵东喜

    2012-01-01

    随着经济全球化的进一步深化,国际间的竞争已经从单纯以经济、政治、军事等"硬实力"的竞争为主逐步转移到更加注重文化、价值观等"软实力"为重要内容的综合国力的竞争。现在各国越来越重视软实力的重要作用,并以此作为提升国际竞争力的重要途径。文化软实力作为软实力的主要部分,对于文化产业发展具有重要的促进作用。加强我国文化软实力的建设,对于提升中国的文化产业竞争力具有重要意义。%With the globalization of the world economy,The competition between international already from "hard power" such as economy,politics,military competition gradually shifted to focus more on "soft power" such as the culture,values and other as the main content of the comprehensive national power competition.Now more and more attention to the important role of soft power,take it as the important way to enhance the international competitiveness.The soft power of culture as the main part of soft power,has an important role in promoting the development of cultural industry.Strengthen the construction of cultural soft power,to promote China 's cultural industry competitiveness has important significance.

  13. Project Management Innovation Model of Thermal Power Plant and Practical Discussion on Capital Construction%火电厂工程项目管理创新模式及基建实践探讨

    Institute of Scientific and Technical Information of China (English)

    罗瑞; 朱福霞; 孙文昊

    2016-01-01

    The construction of thermal power plant featured by ″great investment , strong specialty , long construction period , large space occupation , many cross operations , complex construction procedures and big danger coefficient″leads to great difficulties in capital construction management and therefore making strengthening of project management innovation is particularly important .The management model of ″six excellent aspects″is the achievement of project management innovation continuously summarized and re -fined by Huadian Lu′an Power Plant during the period of capital construction to realize the objective of″refining quality and creating excellence″, brings fine comprehensive benefits in practices and has the characteristics of excellent practice effects , good operability , strong reference , etc.%由于火电厂建设具备“投资大、专业性强、工期长、占地面积大、交叉作业多、施工工序复杂、危险系数大”等特点,基建管理难度大,为此强化项目管理创新显得尤为重要。“六精”管理模式是华电六安电厂在基建期间为实现“精品创优”目标不断总结、提炼而成的项目管理创新成果,并在实践中取得了良好的综合效益,具有实践效果佳、操作性好、可参考性强等特点。

  14. 基建MIS在桐乡电厂工程建设中的应用%The Application of the Construction MIS in Tongxiang Power Plant

    Institute of Scientific and Technical Information of China (English)

    李兴富; 杨发综; 潘成华

    2015-01-01

    In the entire construction process, the management work is very complex in the construction of Tongxiang Power Plant, investor, design institute, construction unit, supervision unit and all kinds of equipment and materials suppliers, commissioning units and the relevant local administrative departments, are closely linked. The power plant construction information system is based on these relations, directly facing the owners of the representative investors, construction supervision, design supervision and management personnel of the construction management. By using the various subsystems of power plant construction management information system, they coordinate finishing their work, participate in project management, promising to improve the quality of engineering construction, save investment, save the cost of labor statistics, shorten the time limit for a project, and achieve the purpose of the final accounts, so as to obtain higher economic benefits.%桐乡电厂基建工程建设过程中面临十分复杂的管理工作,投资方、设计院、施工单位、监理单位及各种设备材料供应商、调试单位以及有关地方行政管理部门,在整个工程建设过程中有密切的联系。电厂基建管理信息系统在体现这些关系的基础上,直接面向代表投资方进行建设管理的业主,面向参加建设工作的施工监理、设计监理及施工单位的管理人员。他们通过电厂基建管理信息系统的各子系统协同完成其业务工作,参与工程项目管理,达到提高工程建设质量、节约投资、节约人工统计成本、缩短工期,并快速实现竣工决算的目的,从而获得更高的经济效益。

  15. Radioactivity monitoring and import regulation of the contaminated foodstuffs in Japan following the Chernobyl nuclear power plant accident

    Energy Technology Data Exchange (ETDEWEB)

    Izumo, Yoshiro [Institute of Public Health, Tokyo (Japan)

    1997-03-01

    Radioactivity monitoring and import regulation of the contaminated foodstuffs executed by Minstry of Health and Welfare following the Chernobyl nuclear plant accident were reviewed as follows; (1) background of socio-psychological effects and environmental radioactivity leading to the regulation (to may 3, 1986); (2) intial intervention for imported foodstuffs in Japan (may 8, `86), and (3) in european countries (to may 31, `86), immediately after the Accident, respectively; (4) determination of the interim driven intervention level for radionuclides in imported foodstuffs (({sup 134}Cs + {sup 137}Cs): 370 Bq/Kg) and activation of the monitoring, (5) outline of the monitoring with elapsed time, number of foodstuffs monitored, number of foodstuffs exceeded radioactivity of the intervention level and re-exported; (6) guideline in international trade of radioactive contaminated foodstuffs adopted by CODEX Alimentarius Commission (FAO/WHO) and the intervention level recommended by ICRP following the Accident; (7) discussion for problems and scopes in future based on the results of monitoring. As the results, a number of imported foodstuffs (about 75,000 samples at present) has been monitored, 55 samples exceeding the interim intervention level were re-exported to each export`s country, and socio-psychological doubts for radioactive contamination of imported foodstuffs have been dispersed. In addition, problems for several factors based on calculation of the interim intervention level, radioactivity level of foodstuffs exceeding about 50 Bq/Kg as radiocesiums and necessity of monitoring for the other radionuclides in foods except radiocesiums were also discussed. (author)

  16. Environmental Impact Assessment of reservoir construction: new perspectives for restoration economy, and development: the Belo Monte Power Plant case study

    Directory of Open Access Journals (Sweden)

    JG. Tundisi

    Full Text Available Abstract The Environmental Impact Assessment of reservoir construction can be viewed as a new strategic perspective for the economic development of a region. Based on the principles of a watershed approach a interdisciplinary and multidisciplinary systemic view including biogeophysiographical, economic and socio environmental studies the new vision of a EIA provides a basic substratum for the restoration economy and an advanced model for the true development much well ahead of the modernization aspects of the project of a reservoir construction.

  17. Environmental Impact Assessment of reservoir construction: new perspectives for restoration economy, and development: the Belo Monte Power Plant case study.

    Science.gov (United States)

    Tundisi, J G; Matsumura-Tundisi, T; Tundisi, J E M

    2015-08-01

    The Environmental Impact Assessment of reservoir construction can be viewed as a new strategic perspective for the economic development of a region. Based on the principles of a watershed approach a interdisciplinary and multidisciplinary systemic view including biogeophysiographical, economic and socio environmental studies the new vision of a EIA provides a basic substratum for the restoration economy and an advanced model for the true development much well ahead of the modernization aspects of the project of a reservoir construction.

  18. NPP financial and regulatory risks-Importance of a balanced and comprehensive nuclear law for a newcomer country considering nuclear power programme

    Science.gov (United States)

    Manan, J. A. N. Abd; Mostafa, N. A.; Salim, M. F.

    2015-04-01

    understanding of various requirements of public, regulators, investors, financial institutions, international community, operator and other important stakeholders. Ambiguities and uncertainties, especially with regards to certain conditions and requirements should be minimised by emulating good practices of experienced nuclear regulators. The imposition of various financial requirements such as funds for decommissioning, radioactive waste management, financial security, nuclear liabilities and licensing fees are necessary, but at the same time the quantum needs to be clearly defined. Concerns on absolute liability of the operators need to be addressed through a creation of necessary and proper nuclear insurance legislations to mitigate operator S nuclear liability obligations and other financial risks. Another major risk to investors is the possibility of public resistance which will not only can hinder the construction but can also stop operation of the nuclear power plant which will contribute to huge losses to investors and countries. This may require a provision in the legislation that provide proper compensation for these situations and at the same time to allow operators to engage in nuclear promotional activities, such as community benefit and public consultation as voluntary initiatives. Through proper planning, research, consultation and execution, the proposed nuclear law shall be able to promote good regulatory practices for public and investors' confidence and benefit. Early involvement of various stakeholders is essential as a platform for regular communications between regulators and interested parties. Stakeholders' participation in the NPP programme and law developments will also promote transparency of the projects while upholding the independency of the regulators.

  19. NPP financial and regulatory risks-Importance of a balanced and comprehensive nuclear law for a newcomer country considering nuclear power programme

    Energy Technology Data Exchange (ETDEWEB)

    Manan, J. A. N. Abd, E-mail: jamalan@tnb.com.my; Mostafa, N. A.; Salim, M. F. [Nuclear Energy Department, Planning Division, Tenaga Nasional Berhad Level 32, Dua Sentral, No. 8 Jalan Tun Sambanthan, 50470 Brickfields, Kuala Lumpur (Malaysia)

    2015-04-29

    understanding of various requirements of public, regulators, investors, financial institutions, international community, operator and other important stakeholders. Ambiguities and uncertainties, especially with regards to certain conditions and requirements should be minimised by emulating good practices of experienced nuclear regulators. The imposition of various financial requirements such as funds for decommissioning, radioactive waste management, financial security, nuclear liabilities and licensing fees are necessary, but at the same time the quantum needs to be clearly defined. Concerns on absolute liability of the operators need to be addressed through a creation of necessary and proper nuclear insurance legislations to mitigate operator S nuclear liability obligations and other financial risks. Another major risk to investors is the possibility of public resistance which will not only can hinder the construction but can also stop operation of the nuclear power plant which will contribute to huge losses to investors and countries. This may require a provision in the legislation that provide proper compensation for these situations and at the same time to allow operators to engage in nuclear promotional activities, such as community benefit and public consultation as voluntary initiatives. Through proper planning, research, consultation and execution, the proposed nuclear law shall be able to promote good regulatory practices for public and investors’ confidence and benefit. Early involvement of various stakeholders is essential as a platform for regular communications between regulators and interested parties. Stakeholders’ participation in the NPP programme and law developments will also promote transparency of the projects while upholding the independency of the regulators.

  20. Security Design for Web Pages Constructed by PowerBuilder%基于PowerBuilder的Web页面安全性设计

    Institute of Scientific and Technical Information of China (English)

    张少敏; 王保义

    2001-01-01

    PowerBuilder是开发客户机/服务器模式管理信息系统功能的有力工具。讨论了用PowerBuilder开发Web应用的2种方式(Plug—ins方式和Web.PB方式)及其特点和执行过程,对2种Web应用方式构建的Web页面的安全性进行了设计。

  1. Construction of the sustainable society and expectations of hydroelectric power engineers; Jizoku kanona shakai no kochiku to suiryoku gijutsusha eno kitai

    Energy Technology Data Exchange (ETDEWEB)

    Kurokawa, J. [Yokohama National University, Yokohama (Japan). Faculty of Engineering

    1999-10-10

    In the global competition among enterprises, even if winning the economic war, there will be waiting the construction of the sustainable society. The resource circulating type society should be aimed at. The present rich society was brought by exchange for the waste of resource/energy, but on the other hand, it brought a lot of spiritual poverty. Conserving resource/energy and heightening the utilization efficiency, the nature-human balance should be regained. The hydroelectric energy is the highest in density and the lowest in CO2 emission rate of all the natural energies. It is a highly excellent energy. In Japan, large hydroelectric power resource had almost been developed, and there remains only small hydroelectric power resource. Nevertheless, 20 million KW, 45% of all the hydroelectric power in Japan, remain undeveloped. It is said that small hydroelectric power does not pay because of its high developmental expenses, but it merits developmental efforts to be made by the persons concerned, as compared with wind power, solar energy, etc. In future, it is necessary to change the idea to the one of effective and multi-purpose utilization of low quality distributed small hydroelectric power resource. (NEDO)

  2. On importance of construction documents of expressway projects%谈高速公路工程施工资料的重要性

    Institute of Scientific and Technical Information of China (English)

    师小青

    2012-01-01

    The paper introduces the factual contents for the construction documents of expressway projects,illustrates the role of the engineering management documents and the documents for construction quality control,the construction original records,and the construction documents,and points out the file management of the construction documents of the expressways should be improved,so as to improve the construction quality of the expressway projects.%简要介绍了高速公路工程施工资料的具体内容,分别阐述了工程管理文件、施工质量控制文件、施工原始记录、施工资料的作用;提出应加强高速公路施工资料的档案管理工作,以提高高速公路工程施工质量。

  3. Construction and Application of the Mobile Power Supply Service System%移动式供电服务系统的建设与应用

    Institute of Scientific and Technical Information of China (English)

    龚廷志; 李红兵

    2012-01-01

    从业务和功能构架、数据构架、安全构架及集成构架4个方面,阐述了移动式供电服务系统的建设方法,介绍了系统的具体应用及带来的社会效益和经济效益,说明了供电企业建设移动式供电服务系统的必要性和意义.%In this article the author explained the construction of mobile power supply service system in four respects of marketing professional and functional architecture,data architecture,security architecture and integrated framework, and then stated the application and social and economic benefits of the system. It is necessary and significant for power company to establish mobile power supply service system.

  4. 施工企业加强应收账款管理的重要性%On importance of management over accounts receivable in construction enterprises

    Institute of Scientific and Technical Information of China (English)

    杨文霞

    2012-01-01

    The study points out the management over the accounts receivable is the important channel for avoiding the risks,preventing the bad debts or potential deficit and reduce the losses,and points out the measures to strengthen the management over the account receivable by analyzing the influence of the account receivable on the architectural construction enterprises,and the problems in the management,so as to improve the quality of the economic operation and reach the management purposes.%指出加强应收账款的管理,是企业规避风险,防止坏账或潜亏,减少损失的重要途径,通过分析应收账款对建筑施工企业的影响,以及在管理中存在的问题,提出了加强应收账款管理的措施,以提高经济运行质量,实现经营目标。

  5. Preliminary study on electric power construction and development in Cambodia%柬埔寨王国电力建设与发展初探

    Institute of Scientific and Technical Information of China (English)

    罗积满; 乐建华

    2015-01-01

    The shortage of power supply has greatly restricted the development of Cambodia's society and economy. In combina-tion with the actual situation in Cambodia, the present electric power and power grid construction situation are introduced, and the reason for inhibiting electric power supply and high electricity price are also analyzed. Accordingly, a series of improvement measures and suggestions are put forward, including adjusting the existing electricity pricing mechanism, promoting rainy season hydropower exports, balancing hydropower use and improving power grid management level. The experience and measures can be used as reference in the power construction of similar countries and regions.%柬埔寨王国电力供应短缺,极大制约了其社会经济发展。结合柬埔寨国内实际情况,介绍了该国电源分布及电网建设现状,并分析了电力供应不畅和电价偏高的原因。相应地,提出了一系列措施建议,包括调整现有电价机制,促进雨季水电出口,水电平衡利用,提高电网管理水平,编制实施电网中长期建设规划等。相关经验措施可供类似国家及地区的电力建设参考。

  6. On the Construction and Management of Training Base Outside Campus of the Power Vocational Colleges%电力类高职院校校外实训基地建设与管理探析

    Institute of Scientific and Technical Information of China (English)

    陆燕

    2012-01-01

    校外实训是电力高职院校实践性教学的重要组成部分,加强实训基地的建设和管理是高职院校的办学特色和重要环节,同时也是高职院校提升教学质量、促进学生实践能力的重要手段。只有让学生走进实践中去,和技术岗位零距离接触,才能增强学生们的学习和操作能力。本文首先给出了电力高职院校校外实训基地的作用,接着分析了目前电力高职院校校外实训基地建设与管理存在的问题,最后结合实际对校外实训基地的建设管理提出了具体的建议。%Training outside campus is an important part of the practical teaching of power vocational colleges,and to strengthen the construction and management of the training base is the characteristics and an important part of teaching of vocational colleges,which is an important means to improve teaching quality and promote students′ practical ability.Only by allowing students to participate in practice personally,up close the technical positions,can make students improve their knowledge and ability to operate.Firstly,the article gives the role of training base outside campus of the power vocational colleges,and then analyzes the current problems in the construction and management of the training base outside campus;finally,puts forward the specific recommendations on the actual construction and management of the training base outside campus.

  7. Nuclear Power 2010 Program Dominion Virginia Power Cooperative Project U.S. Department of Energy Cooperative Agreement DE-FC07-05ID14635 Construction and Operating License Demonstration Project Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Eugene S. Grecheck

    2010-11-30

    This report serves to summarize the major activities completed as part of Virginia Electric and Power Company's North Anna construction and operating license demonstration project with DOE. Project successes, lessons learned, and suggestions for improvement are discussed. Objectives of the North Anna COL project included preparation and submittal of a COLA to the USNRC incorporating ESBWR technology for a third unit a the North Anna Power Station site, support for the NRC review process and mandatory hearing, obtaining NRC approval of the COLA and issuance of a COL, and development of a business case necessary to support a decision on building a new nuclear power plant at the North Anna site.

  8. Internal service quality by integrated approach Performance Control Matrix (PCM & Importance-Satisfaction Model (Studied in Yazd Regional Power Company

    Directory of Open Access Journals (Sweden)

    Saeid Peirow

    2016-02-01

    Full Text Available Today, the internal service quality as one of the most important factors affecting the recruitment and retention of staff is considered. The present study sought to examine the internal service quality of Yazd Regional Electric, finally, select appropriate strategies to improve the quality of local services in the organization. The application of this study is base on survey method.Data were collected from questionnaires to evaluate the 26 components of internal service quality of Yazd Regional Electric, has been used. Research community is the staff of the organisation.Also, the sample size, the initial questionnaire was distributed according to Cochran's formula is calculated.In order to analyze research data, the model is important - satisfaction and performance control matrix to identify those components that are used need to be improved.Also, in order to prioritize measures to improve employee satisfaction index is used. Data analysis using above tools show, 8 criteria are in improvment area. So, these criteria are prioritized with ESI.

  9. Displaying power, but altering identity : how Danish unions managed to organize the transnationalised Copenhagen Metro construction project

    DEFF Research Database (Denmark)

    Refslund, Bjarke; Arnholtz, Jens

    Experiences from large-scale European construction projects with highly transnational labour forces have shown that national institutions and unions often are unsuccessful in including the transnational workers and companies in national IR systems. However, this article shows how Danish unions have...... been rather successful in organising the transnational construction project of a city metro ring in Copenhagen. This has happened despite a highly fragmented, transnational workforce and several of the sub-contracting firms initially trying actively to avoid the unionisation of their transnational...

  10. Several Research Questions Green Wind Power Project Construction%风电项目绿色建造若干问题研究

    Institute of Scientific and Technical Information of China (English)

    周兴华

    2014-01-01

    At present, environmental protection has become the consensus of the world. Wind energy is a renewable energy, but if you only focus on its utilization, while ignoring the problem of relations in the construction and production and the environment, is bound to have a negative impact on the environment. Therefore, the construction of green in the wind power project is in line with the current thinking of a sustainable development strategy. Analyzes the necessity of the development of wind power projects, and proposed that appears in green construction problems and corresponding solutions.%目前,环境保护已经成为世界各国的共识。风能是一种可再生能源,但如果只注重其利用方面,而忽略了在建造和生产时与环境的关系问题,势必会对环境造成负面的影响。因此,在风电项目中进行绿色建造,是符合目前可持续发展战略思想的。分析了开发风电项目的必要性,并提出了在绿色建造中出现的问题及相应的解决办法。

  11. Guide for construction of wood power systems. Construction - economic efficiency - technology; Leitfaden fuer die Errichtung von Holzenergie-Anlagen. Umsetzung - Wirtschaftlichkeit - Technologie

    Energy Technology Data Exchange (ETDEWEB)

    Ruchser, M. [Forum fuer Zukunftsenergien e.V., Bonn (Germany)

    2001-07-01

    The Guidebook serves as a handbook for the entire operational sequence, which is necessary for the establishment of a wood combustion plant in Germany with an installed capacity larger than 100 kW{sub th}, for the use of fuel woods such as forest chips, wood and forest residues, pellets, wood waste, etc. within the limits of the laws and regulations prescribed for the respective performance classes. The Guidebook's purpose is to give potential investors and operators of wood combustion plants as well as the appropriate authorities a quick and global overview of the energetic use of wood in order to contribute to an increased application of this technology. The Guidebook introduces a Quality Model in Chapters 2 and 3, which describes the establishment of a wood combustion system in six phases. Eleven Management Aspects are differentiated, which can be helpful during the conversion of a project. Thus, potential investors and operators of wood combustion plants become acquainted with the most important aspects of this kind of project conversion. In addition, Chapter 4 provides an overview of the operating costs of wood combustion plants. The relevant licensing and planning procedures depending on the installed capacity and fuelwood use are comprehensively described in Chapter 5. Chapter 6 supplies a concrete overview of the environmental aspects and emissions of wood combustion. Since wood combustion plants must be - as all other investments - financially secured Chapter 7 provides a description of the relevant information on public means and subsidies. Besides all important promotion programmes, the new German Renewable Energy Law (Erneuerbare-Energien-Gesetz - EEG) of April 2000 is described in detail. Many examples of already realised wood combustion plant projects are described in Chapter 8. As an additional service, all significant addresses from ministries to energy agencies and associations are listed in Chapter 9. (orig.)

  12. The Dynamics and Approaches of China's Sea Power Construction%中国建设海洋强国的动力与路径

    Institute of Scientific and Technical Information of China (English)

    梁亚滨

    2015-01-01

    从海权角度来看,中国建设海洋强国是其自身实力增长和海外利益扩展的自然反应,目的在于维护海外利益和岛礁主权以及海洋主权权益。陆海复合体的地理现实与历史经验决定了中国建设海洋强国的重点在于维护海洋权益、发展有限海权,通过采取依靠国际合作、共同应对挑战的多边主义路径,建设地区性防守型海权强国。%From the perspective of sea power,it is a natural reaction for China to construct a maritime power due to the growth of ability and oversea interests.The geography of China as a coastal and continental country, as well as the historical lessons have determined the key elements of Chinese maritime power construction, which are to safeguard maritime rights,develop limited sea power,resort to a multilateral approaches basing on international cooperation to tackle challenges,and aim to be a regional defensive sea power.During the same time,the research and application of international law should be given more attention in order to avoid the secu-rity dilemma or its worsening.

  13. A HindIII BAC library construction of Mesobuthus martensii Karsch (Scorpiones:Buthidae): an important genetic resource for comparative genomics and phylogenetic analysis.

    Science.gov (United States)

    Li, Songryong; Ma, Yibao; Jang, Shenghun; Wu, Yingliang; Liu, Hui; Cao, Zhijian; Li, Wenxin

    2009-12-01

    Scorpions are "living but sophisticated fossils" that have changed little in their morphology since their first appearance over the past 450 million years ago. To provide a genetic resource for understanding the evolution of scorpion genome and the relationships between scorpions and other organisms, we first determined the genome size of the scorpion Mesobuthus martensii Karsch (about 600 Mbp) in the order Scorpiones and constructed a HindIII BAC library of the male scorpion M. martensii Karsch from China. The BAC library consists of a total of 46,080 clones with an average insert size of 100 kb, providing a 7.7-fold coverage of the scorpion haploid genome size of 600 Mbp as revealed in this study. High-density colony hybridization-based library screening was performed using 18S-5.8S-28S rRNA gene that is one of the most commonly used phylogenetic markers. Both library screening and PCR identification results revealed six positive BAC clones which were overlapped, and formed a contig of approximately 120 kb covering the rDNA. BAC DNA sequencing analysis determined the complete sequence of M. martensii Karsch rDNA unit that has a total length of 8779 bp, including 1813 bp 18s rDNA, 157 bp 5.8s rDNA, 3823 bp 28s rDNA, 530 bp ETS, 2168 bp ITS1 and 288 bp ITS2. Interestingly, some tandem repeats are present in the rRNA intergenic sequence (IGS) and ITS1/2 regions. These results demonstrated that the BAC library of the scorpion M. martensii Karsch and the complete sequence of rDNA unit will provide important genetic resources and tools for comparative genomics and phylogenetic analysis.

  14. Analysis of the importance of schedule management in construction project management%进度管理在建筑工程管理中的重要性分析

    Institute of Scientific and Technical Information of China (English)

    霍德广

    2015-01-01

    对整个建筑施工过程中的进度进行一个良好的规划与管理,是保证建设各方利益实现、建筑项目按期完工的重要保障。本文通过建筑工程中施工进度控制的概述和工程进度管理在建筑工程管理中的重要性以及解决建筑工程进度管理问题的措施进行简要分析。%the progress of the whole building construction process, a good planning and management is to ensure that the construction of the interests of al parties to realize the important guarantee, construction project completed on schedule. In this paper, through the overview of construction engineering construction progress control and the importance of the construction schedule management in construction project management and the measures to solve the problem of construction project schedule management is briefly analyzed.

  15. Wetland Water Cooling Partnership: The Use of Constructed Wetlands to Enhance Thermoelectric Power Plant Cooling and Mitigate the Demand of Surface Water Use

    Energy Technology Data Exchange (ETDEWEB)

    Apfelbaum, Steven; Duvall, Kenneth; Nelson, Theresa; Mensing, Douglas; Bengtson, Harlan; Eppich, John; Penhallegon, Clayton; Thompson, Ry

    2013-09-30

    Through the Phase I study segment of contract #DE-NT0006644 with the U.S. Department of Energy’s National Energy Technology Laboratory, Applied Ecological Services, Inc. and Sterling Energy Services, LLC (the AES/SES Team) explored the use of constructed wetlands to help address stresses on surface water and groundwater resources from thermoelectric power plant cooling and makeup water requirements. The project objectives were crafted to explore and develop implementable water conservation and cooling strategies using constructed wetlands (not existing, naturally occurring wetlands), with the goal of determining if this strategy has the potential to reduce surface water and groundwater withdrawals of thermoelectric power plants throughout the country. Our team’s exploratory work has documented what appears to be a significant and practical potential for augmenting power plant cooling water resources for makeup supply at many, but not all, thermoelectric power plant sites. The intent is to help alleviate stress on existing surface water and groundwater resources through harvesting, storing, polishing and beneficially re-using critical water resources. Through literature review, development of conceptual created wetland plans, and STELLA-based modeling, the AES/SES team has developed heat and water balances for conventional thermoelectric power plants to evaluate wetland size requirements, water use, and comparative cooling technology costs. The ecological literature on organism tolerances to heated waters was used to understand the range of ecological outcomes achievable in created wetlands. This study suggests that wetlands and water harvesting can provide a practical and cost-effective strategy to augment cooling waters for thermoelectric power plants in many geographic settings of the United States, particularly east of the 100th meridian, and in coastal and riverine locations. The study concluded that constructed wetlands can have significant positive

  16. Discussion on Website System Construction in Hangzhou Electric Power Bureau%杭州市电力局网站系统建设的探讨

    Institute of Scientific and Technical Information of China (English)

    沙力; 冯雪

    2013-01-01

      根据杭州市电力局网站系统的构建目标,从网站系统子站数目、安全性和快速恢复3个方面提出网站系统的设计要求,消除了之前网站存在的多个信息孤岛,实现了信息的有效共享,增强了系统的安全性。%According to the general aim of website system construction in Hangzhou Municipal Electric Power Bureau and takes account of number of website system subsystems, safety and fast recovery. This poper for-wards the design require of website system. Information isolated islands in former website construction are e-liminated, which enables effective information sharing and enhances security of the system.

  17. Establishment of Biosafety Level-3 (BSL-3 laboratory: Important criteria to consider while designing, constructing, commissioning & operating the facility in Indian setting

    Directory of Open Access Journals (Sweden)

    Devendra T Mourya

    2014-01-01

    This article describes the major steps involved in the process of construction of a BSL-3 laboratory in Indian settings, from freezing the concept of proposal to operationalization phase. The key to success of this kind of project is strong institutional commitment to biosafety norms, adequate fund availability, careful planning and designing, hiring good construction agency, monitoring by experienced consultancy agency and involvement of scientific and engineering personnel with biocontainment experience in the process.

  18. Using a detailed inventory of a large wastewater treatment plant to estimate the relative importance of construction to the overall environmental impacts.

    Science.gov (United States)

    Morera, Serni; Corominas, Lluís; Rigola, Miquel; Poch, Manel; Comas, Joaquim

    2017-10-01

    The aim of this work is to quantify the relative contribution to the overall environmental impact of the construction phase compared to the operational phase for a large conventional activated sludge wastewater treatment plant (WWTP). To estimate these environmental impacts, a systematic procedure was designed to obtain the detailed Life Cycle Inventories (LCI) for civil works and equipment, taking as starting point the construction project budget and the list of equipment installed at the Girona WWTP, which are the most reliable information sources of materials and resources used during the construction phase. A detailed inventory is conducted by including 45 materials for civil works and 1,240 devices for the equipment. For most of the impact categories and different life spans of the WWTP, the contribution of the construction phase to the overall burden is higher than 5% and, especially for metal depletion, the impact of construction reaches 63%. When comparing to the WWTP inventories available in Ecoinvent the share of construction obtained in this work is about 3 times smaller for climate change and twice higher for metal depletion. Concrete and reinforcing steel are the materials with the highest contribution to the civil works phase and motors, pumps and mobile and transport equipment are also key equipment to consider during life cycle inventories of WWTPs. Additional robust inventories for similar WWTP can leverage this work by applying the factors (kg of materials and energy per m(3) of treated water) and guidance provided. Copyright © 2017 Elsevier Ltd. All rights reserved.

  19. The Construction, Enactment, and Maintenance of Power-as-Domination through an Acquisition: The Case of TWA and Ozark Airlines.

    Science.gov (United States)

    Pierce, Tamyra; Dougherty, Debbie S.

    2002-01-01

    Explores how domination was created, enacted, and maintained in the acquisition of Ozark Airlines by TWA. Uses the concepts of resources, hegemony, and resistance from the functionalist, Marxist, and postmodern traditions, respectively, to understand power-as-domination as a complex communication process. Reveals how communication practices were…

  20. Salang Hospital: Lack of Water and Power Severely Limits Hospital Services, and Major Construction Deficiencies Raise Safety Concerns

    Science.gov (United States)

    2014-01-01

    hospital needed to provide scrubable surfaces in high-risk sterile areas like the surgery room to facilitate disinfection . To correct these...of a well house, and establishment of a process to ensure that hospital water lines were disinfected . However, we found that the water well was not...floors is dangerous due to the lack of hand rails. Further, a steep flat surface constructed in the center stairway, presumably for moving wheelchair and

  1. 浙江电网输电线路智能化建设分析%Analysis of intelligent construction of transmission lines in Zhejiang power grid

    Institute of Scientific and Technical Information of China (English)

    王少华; 刘黎; 刘浩军; 吴明祥; 殷明

    2012-01-01

    Intelligent construction of transmission lines is one of the key links for smart grid establishment, new energy sources development and wide range energy resources optimal allocation. The goal and planning of the intelligent construction of transmission lines in Zhejiang power grid are introduced. With application examples, the key technologies used in the construction are analyzed from the aspects of system condition monitoring, intelligent inspection system with helicopters, geographic information system (GIS) and power transmission equipment condition evaluation. The intelligent construction of transmission lines is of great significance to improve maintenance efficiency and transmission line operation.%输电线路智能化建设是构建智能电网、满足新能源发展需要、实现能源资源大范围优化配置的关键环节之一.介绍了浙江电网输电线路智能化的建设目标及规划方案;结合应用实例,从输电线路状态监测系统、直升飞机智能巡检系统、地理信息系统(GIS)、输电设备状态评价等方面,分析了支撑浙江电网输电线路智能化建设的关键技术,指出了输电线路智能化建设对提高输电线路检修工作效率和运行管理水平具有重要意义.

  2. Analysis of technical-economic requirements for the construction of a solar power plant on the roof of the business building of the Electrical Engineering Institute 'Nikola Tesla'

    Directory of Open Access Journals (Sweden)

    Grbić Maja

    2014-01-01

    Full Text Available This paper presents an analysis of the technical-economic requirements for the construction of a solar power plant on the roof of the business building of the Electrical Engineering Institute 'Nikola Tesla' in Belgrade. Calculation of solar irradiation is performed and the conceptual design of the disposition of solar panels on the roof of the building is shown as well as their connections to the inverters. Conditions for connecting the plant to the distribution network are checked and an economic analysis of the project is performed.

  3. Visual management on safety in the construction of power station%浅谈电站建设安全可视化管理

    Institute of Scientific and Technical Information of China (English)

    李开斌

    2012-01-01

    Based on discussion about safety theory of visual management, combined with the general characteristics on safety production of operation staff, implement of safety visualization management to power station construction was extended in order to strengthen the work of safety production.%在深入研究安全可视化管理理论的基础上,结合作业人员安全生产的一般性特点,探索在电站建设中推广实施安全可视化建设,以有效加强安全生产工作。

  4. The Studies Review of the Construction of China's Soft Power%中国软实力建设研究述评

    Institute of Scientific and Technical Information of China (English)

    刘雯; 余伟斌

    2014-01-01

    After the Cold War,Joseph Nye,a famous scholar of Harvard University put forward a new concept “soft power”for international political science.The domestic scholars have discussed a series of questions about the concept,connotation,features of soft power,and the relation between soft pow-er and hard power and so on.In addition,these scholars have got fruitful results in the theory,and also show the localization of theory of the soft power in China in some extent.The domestic and foreign scholars also paid the same degree of attention on the status quo,the existing problems and counter-measures in the construction of the China's soft power.In this paper,the author reviews the researches of scholars from the aspects of soft power theory and China's soft power construction,and then points out the shortcoming of these studies.%冷战后,哈佛大学著名国际政治学教授约瑟夫·奈提出了“软实力”这一全新的概念。国内学者围绕软实力的概念、内涵、特征以及软实力与硬实力的关系等一系列问题展开讨论并取得了丰硕的研究成果,在一定程度上使软实力理论中国化。在理论研究的同时,国内外学界对中国软实力建设的现状、存在的问题以及对策等主题同样给予了高度的重视。从软实力理论研究的中国化以及中国的软实力建设研究两个层面对学者们的研究成果作一番归纳和总结,并在此基础上指出以往研究中存在的不足之处。

  5. 贵州电力OTN传输网的建设及应用探讨%OTN of Guizhou electric power transmission network construction and application

    Institute of Scientific and Technical Information of China (English)

    狄跃平

    2011-01-01

    介绍了OTN的基本概念及技术特征,结合贵州电力省级传输网现状,针对当前网络业务需求增速迅猛,导致网络带宽紧张的趋势,提出了贵州电力省级OTN传输网的建设及应用探讨。%This paper introduced the OTN basic concept and technical features, combined with the Guizhou provincial present situation of electric power transmission network, the network business demand rapid growth, led to the network bandwidth tight trend, put for- ward Guizhou provincial OTN power transmission network construction and application.

  6. THE DEMAND OF SCIENTIFIC RESEARCH IS AN IMPORTANT PREREQUISITE FOR CONSTRUCTION WORK%科研需求是条件建设工作的重要前提

    Institute of Scientific and Technical Information of China (English)

    徐冰

    2014-01-01

    The demand of scientific research is prerequisite for scientific research construction work, and also an important basis for carrying out the construction work of scientific projects smoothly. Therefore, the scientific, ra-tional, advanced guiding ideology of the construction work which accorded with the fact had an important signifi-cance in improving the quality of construction work.%科研需求是科研条件建设工作的重要前提,也是使科研条件建设项目的建设工作顺利实施的重要基础。因此,坚持科学、理性、先进、符合科研工作实际与要求的科研条件建设工作的指导思想对提高条件建设工作的质量具有重要意义。

  7. 浅谈新时期工程造价管理立法的重要性%The Importance of Legislation on Construction Cost Management in a New Period

    Institute of Scientific and Technical Information of China (English)

    朱训应

    2009-01-01

    Based on the analysis of the status quo and existing problems in construction cost management, the paper stresses the importance of legislation on construction coat management.%文章通过对我国工程造价立法现状和存在问题的分析,从加强造价监管的层面,提出了新时期工程造价管理立法的重要性.

  8. Access rules for imports and exports on the French public power transmission network; Regles d'acces au reseau public de transport francais pour des importations et des exportations

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-10-01

    These rules define the technical, financial and legal conditions applied to imports and/or exports made by the user on the French public power transmission grid (Reseau Public de Transport - RPT), considering the available capacity on interconnections and any particular technical constraints of the European interconnected network, notably in terms of safety: 1 - definitions; 2 - general conditions (scope, participation conditions, user obligations, signature, enforcement and duration of the participation agreement, attachment of transactions to a balance responsible entity, rules modification procedure, access to the information system, financial conditions, guarantee of exchange programmes, transfer of rights and obligations, intellectual property, confidentiality, force majeure, responsibility, termination, notifications and operational exchange procedures, territorial application of the rules, applicable law and language, dispute resolution); 3 - conditions for the application of imports and exports (allocating transmission capacity on interconnections, allocating import capacity, changing a capacity allocation mechanism, the different categories of exchange programmes, standard programmes, weekly programmes, daily programmes, nominations in the event of a failure in the information system, information published by RTE); 4 - conditions for the application of intra-day transactions (intra-day transaction requests, processing intra-day transaction requests, modification of an intra-day transactions programme). 16 models of correspondence documents are given in appendixes.

  9. Conserving gallons and kilowatts. Challenges of today's solar power plants. An EPC (Engineering, Procurement and Construction) perspective

    Energy Technology Data Exchange (ETDEWEB)

    Shoemaker, Jeanette [Ivanpah Solar Electric Generating Facility, CA (United States); Bechtel Power Corp., Frederick, MD (United States); Huth, Christopher; Sinha, Kumar [Bechtel Power Corp., Frederick, MD (United States)

    2013-03-15

    With the increasing restrictions on CO2 emissions, the utilization of solar power is emerging as an effective way to increase the renewable portfolio for utility power. For example in California, the utilities' current renewable portfolios must increase from 20% to 33% by 2020. This drive has made renewable power considerably more desirable. However, fresh water availability and optimal solar irradiation are generally two mutually exclusive local characteristics that make locating and designing these plants challenging. Not only is fresh water scarce at the desert locations where these solar plants are generally located, but options for disposal of wastewater can be very limited as well. These factors have pushed the design of these plants to develop a fine balance between conserving and reusing water to the greatest extent practical and reducing parasitic electrical loads. This paper addresses the challenges associated with developing solar power plant designs that optimize house electrical load while minimizing water footprint. Through the implementation of operational water management techniques and optimized water treatment processes, water usage can be reduced to manageable levels. Utilizing systems that recover and recycle wastewater, the system can be further optimized to reduce the overall water footprint. Case studies are presented for multiple sites detailing the individual optimization required based on the water quality provided. Lessons learned during plant siting and permitting are provided to shed light on the current issues associated with wastewater disposal in these areas and utilization of evaporation ponds. In addition, various design philosophies are discussed to guide the reader through the difficulties of determining the right mix of initial capital cost, optimized water usage, minimized operating cost and minimized parasitic electrical load. (orig.)

  10. 大连市软实力的建设与提升%The construction and upgrading of soft power in Dalian

    Institute of Scientific and Technical Information of China (English)

    赵永勃

    2011-01-01

    自从约瑟夫·奈在20世纪90年代初首开软实力研究的先河以来,在过去的20余年中,软实力研究备受瞩目.认为在大连实施全域城市化发展战略中,加强软实力研究对创建大连和谐的人居生活环境和妥善解决民生问题等,具有十分现实的意义.在分析软实力的内涵、体系以及软实力与硬实力、软实力与区域竞争力、软实力与软环境的相互关系的基础上.从城市吸引力、区域影响力、文化感召力、城市凝聚力、区域创新力、教育发展力、政府公信力和社会和谐力等7个方面,研究大连市软实力的建设现状与提升要点.%Since Joseph Nye firstly began to study of soft power in the early 1990s, in the past 20 years, the soft power was highly valued. This paper argues that in the implementation of all-around urbanization development strategy of Dalian, the strengthening research on soft power has very realistic significance for creating harmonious living environment of Dalian and solving the People's livelihood issues properly. On the basis of analyzing the connotation and the system of the soft power and the relationship between soft power and hard power, soft power and regional competition, soft power and soft environment, this paper studies the construction situation and ascension points of the soft power of Dalian. From seven aspects, such as city attractive and regional influence, cultural charisma, urban cohesion, regional innovation, the education development force, the government credibility and social harmonious force.

  11. La construction du « soft power » : l’exemple de la Corée du Sud

    Directory of Open Access Journals (Sweden)

    Eric Bidet

    2013-01-01

    Full Text Available Depuis quelques années, la Corée du Sud apparaît comme un pays doté d’un soft power significatif, présentant notamment une dimension culturelle particulièrement développée. Le succès mondial rencontré en 2012 par le chanteur Psy avec son clip vidéo Gangnam Style et la visibilité internationale acquise par certains artistes emblématiques de la K-pop (musique pop coréenne y sont pour beaucoup mais n’en représentent qu’une facette qui ne permet pas à elle seule de saisir les différents éléments caractéristiques de ce soft power. Celui-ci s’appuie en premier lieu sur l’émergence de la Corée comme puissance économique, et plus spécialement comme puissance commerciale exportatrice, qui en fait un modèle pour de nombreuses économies émergentes. Il repose par ailleurs sur une politique active de développement des industries culturelles et de diffusion des produits culturels coréens à l’international. En d’autres termes, le soft power coréen repose sur une synergie particulièrement réussie entre puissance économique et industries culturelles.

  12. Analyzing the possibility of constructing the air heating system for an integrated solid fuel gasification combined-cycle power plant

    Science.gov (United States)

    Mikula, V. A.; Ryzhkov, A. F.; Val'tsev, N. V.

    2015-11-01

    Combined-cycle power plants operating on solid fuel have presently been implemented only in demonstration projects. One of possible ways for improving such plants consists in making a shift to hybrid process circuits of integrated gasification combined-cycle plants with external firing of solid fuel. A high-temperature air heater serving to heat compressed air is a key element of the hybrid process circuit. The article describes application of a high-temperature recuperative metal air heater in the process circuit of an integrated gasification combined-cycle power plant (IGCC). The available experience with high-temperature air heating is considered, and possible air heater layout arrangements are analyzed along with domestically produced heat-resistant grades of steel suitable for manufacturing such air heater. An alternative (with respect to the traditional one) design is proposed, according to which solid fuel is fired in a noncooled furnace extension, followed by mixing the combustion products with recirculation gases, after which the mixture is fed to a convective air heater. The use of this design makes it possible to achieve considerably smaller capital outlays and operating costs. The data obtained from thermal and aerodynamic calculations of the high-temperature air heater with a thermal capacity of 258 MW for heating air to a temperature of up to 800°C for being used in the hybrid process circuit of a combined-cycle power plant are presented.

  13. 核电建设阶段大宗材料采购缺失分析和改进建议%Analysis and Improvement Suggestion for the Lack of Bulk Material Procurement during the Construction of Nuclear Power Plant

    Institute of Scientific and Technical Information of China (English)

    李冠英; 顾健

    2015-01-01

    Aiming at the importance and influence of lack of procurement for bulk materials during nuclear power plant construction, the design, procurement and construction management for bulk material are analyzed. Through analysis, referring to the problems during design, procurement and construction management, suggestions are given to countermeasures for all stage of work, with an aim to increase procurement efficiency and decrease the lack of procurement for bulk materials.%文章针对核电建设阶段大宗材料采购缺失重要性及缺失影响,进行了大宗材料采购时设计、采购、施工管理方面问题的分析.通过分析,针对大宗材料采购时设计、采购、施工管理问题提出了各阶段的工作对策,旨在提高采购效率、减小大宗材料的缺失率.

  14. The Madeira River, Society and Power Industry: the construction of hydropower plants and its impacts and interventions in society

    Directory of Open Access Journals (Sweden)

    Artur de Souza Moret

    2011-12-01

    Full Text Available Energy is made operational in an industry with great spectrum and impact on world and local economic activities, as it enables the generation production of various products and facilitates human activities, such as transportation, comfort and leisure. The figures in the industry are exceedingly large regarding supply, consumption, financial volume, and influence on individuals, and social imaginarium. Thus, it is understood that Energy defines the course of society, whether positive or negative. The construction of dams on the Madeira River will be examined from this theoretical framework.

  15. New Matrix Lie Algebra, a Powerful Tool for Constructing Multi-component C-KdV Equation Hierarchy

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    A set of new multi-component matrix Lie algebra is constructed, which is devoted to obtaining a new loop algebra A-2M. It follows that an isospectral problem is established. By making use of Tu scheme, a Liouville integrable multi-component hierarchy of soliton equations is generated, which possesses the multi-component Hamiltonian structures. As its reduction cases, the multi-component C-KdV hierarchy is given. Finally, the multi-component integrable coupling system of C-KdV hierarchy is presented through enlarging matrix spectral problem.

  16. Construction and 1st Experiment of the 500-meter and 1000-meter DC Superconducting Power Cable in Ishikari

    Science.gov (United States)

    Yamaguchi, S.; Ivanov, Y.; Watanabe, H.; Chikumoto, N.; Koshiduka, H.; Hayashi, K.; Sawamura, T.

    Ishikari project constructs two lines. The length of the Line 1 is 500 m, and connects the photovoltaic cell to the internet-data center. The other line is 1 km length, and it is a test facility and called Line 2. The structures of the cable systems are not same to test their performance. The construction was started from 2014 in the field, the Line 1 was completed in May 2015, and it was cooled down and do the current experiment, and warmed up. The Line 2 is almost complete in October 2015. It will be tested in November and December, 2015. In order to reduce the stress of the cable induced by the thermal expansion and contraction, we adopted the way of the helical deformation of the cable. The force of the cable is reduced to 1/3 of an usual cable test. Because the cryogenic pipes are welded in the field and we cannot use the baking of the vacuum chamber of the cryogenic pipe, a new vacuum pumping method was proposed and tested for the cryogenic pipe. Since the straight pipes are used to compose the cryogenic pipe, the pressure drop of the circulation would be 1/100 of the corrugated pipe in the present condition, and it is suitable for longer cable system. The heat leak of the cryogenic pipe is ∼1.4W/m including the cable pipe's and the return pipe's. The heat leak of the current lead is ∼30W/kA in the test bench. Finally the current of 6kA/3 sec and the current of 5kA/15 min were achieved in Line 1. The reduction of heat leak will be a major subject of the longer cable system. The cost of the construction will be almost twice higher than that of the copper and aluminum over-head line with the iron tower in the present Japan. The cost construction of the over-head line is an average value, and depends on the newspaper.

  17. Importance of Multiple Properties of Water Conservancy and Construction of Water Conservancy Long-Term Mechanism——Study of Water Development Dilemma and Thinking

    Institute of Scientific and Technical Information of China (English)

    Xin; LIU

    2013-01-01

    Since the construction of new socialist countryside," agriculture,rural areas and farmers" have been in the pivotal development period. As the all-around transition and progress of our society,water conservancy construction and other rural public facilities and services seriously lag behind,and it has restricted the formation of long-term mechanism for water conservancy development and brought hidden trouble to harmonious countryside. Based on the great changes of traditional rural areas in politics,economy,society,humanity and ecological,we firstly analyze the status quo of agriculture,rural areas and farmers,then discuss the multiple attributes of water conservancy to construct the longterm mechanism for water conservancy development.

  18. 核电建造管理信息系统MISNPC的创新与应用%The innovation and application of the nuclear power construction management information system MISNPC

    Institute of Scientific and Technical Information of China (English)

    王开华; 汤自辉; 臧柏齐; 孙广伟; 钱伏华; 朱国栋

    2009-01-01

    This paper focuses on introducing the innovation achievements on the management information system of nuclear power construction (MISNPC). The innovation is achieved through summarizing the practice of nuclear power construction in China and drawing on advanced experience of international nuclear power construction. The innovation, including the management standard for nuclear power construction, the standard of construction process, the standard of nuclear-power basic codes and the standard for nuclear power construction and control, can be rapidly copied for application in various nuclear power construction projects. The application of the innovation may play an essential role in ensuring safe construction and operation of nuclear power plants in China and improving economic benefits.%本文重点介绍"核电建造管理信息系统(简称MISNPC)"的创新成果.此成果是在借鉴、消化、吸收国际核电建造先进经验,以及我国核电建造实践的基础上总结而成的结晶.它包括核电建造的管理标准、施工工艺标准、核电基础代码标准、核电建造控制标准,并能针对各类核电建造项目进行快速复制.运用这套成果,对保证我国核电站安全建设、安全运营和提高经济效益起到关键性的指导作用.

  19. The construction and legitimation of workplace bullying in the public sector: insight into power dynamics and organisational failures in health and social care.

    Science.gov (United States)

    Hutchinson, Marie; Jackson, Debra

    2015-03-01

    Health-care and public sector institutions are high-risk settings for workplace bullying. Despite growing acknowledgement of the scale and consequence of this pervasive problem, there has been little critical examination of the institutional power dynamics that enable bullying. In the aftermath of large-scale failures in care standards in public sector healthcare institutions, which were characterised by managerial bullying, attention to the nexus between bullying, power and institutional failures is warranted. In this study, employing Foucault's framework of power, we illuminate bullying as a feature of structures of power and knowledge in public sector institutions. Our analysis draws upon the experiences of a large sample (n = 3345) of workers in Australian public sector agencies - the type with which most nurses in the public setting will be familiar. In foregrounding these power dynamics, we provide further insight into how cultures that are antithetical to institutional missions can arise and seek to broaden the debate on the dynamics of care failures within public sector institutions. Understanding the practices of power in public sector institutions, particularly in the context of ongoing reform, has important implications for nursing.

  20. On exploration for staff keeping mechanism in power construction enterprises in Shanxi%山西电力建设企业留人机制探讨

    Institute of Scientific and Technical Information of China (English)

    石艳芳

    2012-01-01

    According to fact that power construction enterprises in Shanxi still adheres to the ideas,including the human-oriented,reserving talents and the absorbing talents,when they confront the talent competition caused by the fierce market competition,the paper researches the issue of how to keep staff,and points out the idea for studying the human resource management by analyzing the environment survey of the power construction enterprises in Shanxi and their traditional human resource management model,so as to provide the ideas for the enterprises to implement the keeping staff strategies.%主要针对山西电力建设企业面对激烈的市场竞争所导致的人才竞争,坚持以人为本,留住人才、吸引人才的共识思想,研究了如何留住人才的问题,通过分析山西电力建设企业环境概况和传统的人力资源管理模式,提出人力资源管理的研究理念,为企业实施留人策略提供思路。

  1. Fossil fuel-fired power generation. Case studies of recently constructed coal- and gas-fired plants

    Energy Technology Data Exchange (ETDEWEB)

    Henderson, C. [IEA Clean Coal Centre, London (United Kingdom)

    2007-10-23

    To meet future energy demand growth and replace older or inefficient units, a large number of fossil fuel-fired plants will be required to be built worldwide in the next decade. Yet CO{sub 2} emissions from fossil-fired power generation are a major contributor to climate change. As a result, new plants must be designed and operated at highest efficiency both to reduce CO{sub 2} emissions and to facilitate deployment of CO{sub 2} capture and storage in the future. The series of case studies in this report, which respond to a request to the IEA from the G8 Summit in July 2005, were conducted to illustrate what efficiency is achieved now in modern plants in different parts of the world using different grades of fossil fuels. The plants were selected from different geographical areas, because local factors influence attainable efficiency. The case studies include pulverized coal combustion (PCC) with both subcritical and supercritical (very high pressure and temperature) steam turbine cycles, a review of current and future applications of coal-fuelled integrated gasification combined cycle plants (IGCC), and a case study of a natural gas fired combined cycle plant to facilitate comparisons. The results of these analyses show that the technologies for high efficiency (low CO{sub 2} emission) and very low conventional pollutant emissions (particulates, SO{sub 2}, NOx) from fossil fuel-fired power generation are available now through PCC, IGCC or NGCC at commercially acceptable cost. This report contains comprehensive technical and indicative cost information for modern fossil fuel-fired plants that was previously unavailable. It serves as a valuable sourcebook for policy makers and technical decision makers contemplating decisions to build new fossil fuel-fired power generation plants.

  2. SHEsis, a powerful software platform for analyses of linkage disequilibrium, haplotype construction, and genetic association at polymorphism loci

    Institute of Scientific and Technical Information of China (English)

    Yong Yong SHI; Lin HE

    2005-01-01

    In multiloci-based genetic association studies of complex diseases, a powerful and high efficient tool for analyses of linkage disequilibrium (LD) between markers, haplotype distributions and many chi-square/p values with a large number of samples has been sought for long. In order to achieve the goal of obtaining meaningful results directly from raw data,we developed a robust and user-friendly software platform with a series of tools for analysis in association study with high efficiency. The platform has been well evaluated by several sets of real data.

  3. Uhf RFID Construction Elevator Power Failure Detection Algorithm Simulation%超高频RFID施工升降机电源故障检测算法仿真

    Institute of Scientific and Technical Information of China (English)

    蒋琳琼; 周顺先

    2014-01-01

    Research uhf RFID construction elevator power failure accurate detection problem. This paper put for-ward a fault feature based on correlation residual compensation algorithm of uhf RFID construction elevator power fault detection method. The relationship between the fault signal characteristics was calculated, and the fault signal of the error was compensated. According to the fault characteristic similarity, weccalculated the fault space position, so as to realize the uhf RFID construction elevator power fault detection. The experimental results show that the algorithm can effectively improve the accuracy of the power supply fault detection.%研究超高频RFID施工升降机的电源故障检测问题。施工现场的电源大多是通过母线并入现场配电网络,而升降机的分布式电源直接并入配电网,线路中间增加多余的支路,对线路两侧的电流大小、方向造成影响,容易造成故障信号的波动。传统的故障检测方法很难对这种随机波动进行准确分类,导致检测的准确性较低。为此,提出基于故障特征相关性残差补偿的超高频RFID施工升降机电源故障检测算法。首先,计算故障信号特征之间的相似性,从而对故障信号中的误差进行补偿;然后根据故障特征相似性,计算故障空间位置,从而实现超高频RFID施工升降机电源故障检测。实验结果表明,利用改进的算法能够有效提高电源故障检测的准确性。

  4. Research on the Application of Advanced Construction Techniques for Nuclear Power Plants%核电厂先进建造技术的应用研究

    Institute of Scientific and Technical Information of China (English)

    刘志弢; 范霁红

    2013-01-01

    In this paper, the research is carried out on the advanced techniques for the construction of nuclear power plants. In combination of the actual engineering situation, the main characteristics and impacts of the techniques are analyzed such as the foundation pit excavation by blasting, the once-off complete concrete placement of raft foundation, the steel plate reinforced concrete structure, the open top construction, the advanced welding process, the modern engineering materials, as well as the prefabrication preassembly and modularization. The trends of the advanced construction techniques are also predicted.%研究了核电厂先进建造技术的现状;结合工程实际,分析了核电厂基坑负挖的爆破施工技术、筏基大体积混凝土一次性整体浇注、钢板混凝土结构、开顶法施工技术、先进焊接技术、现代建筑工程材料、预制造-预组装-模块化(PPM)技术等的主要特点和对工程建造的影响;归纳了核电厂先进建造技术发展趋势的主要特征.

  5. Studies of small fish at Lillgrund wind power park. Studies of effects during construction and building of gravity foundations; Studier paa smaafisk vid Lillgrund vindpark. Effektstudier under konstruktionsarbeten och anlaeggning av gravitationsfundament

    Energy Technology Data Exchange (ETDEWEB)

    Hammar, Linus; Wikstroem, A.; Boerjesson, P.; Rosenberg, Rutger

    2008-05-15

    Within environmental impact assessments of offshore wind power, the construction work is an important issue. It has been established that pile driving, a method used for installation of monopile, tripod, and jacket foundations, are likely to impact fish over relatively large distances. However, similar studies have not been conducted to assess the impact of the installation of gravity foundations on fish in their surrounding area. Such impact would likely be associated with the construction phases dredging or stone bedding. This study addressed potential impacts on fish fauna during construction works at Lillgrund wind farm in Oeresund (Baltic Sea). The BACI model (Before/After Control/Impact) was applied to the experimental design, where the impact areas at Lillgrund where compared to an undisturbed control area, before and after the different phases of construction work were carried out. The study was divided into three separate case studies: 1) Long-term effects of dredging, with sampling conducted 1 month after impact, 60 and 200 m from the construction site 2) Short-term effects of dredging, with sampling conducted 24 h after impact at a distance of 150 m from the construction site 3) Direct effects of stone bedding, with sampling conducted 60 and 200 m from the construction site The results showed no indications of negative impacts from dredging, from neither the long-term nor the short-term case studies. During stone bedding significant differences between the control and the impact areas (60 and 200 m from impact site) were found. Number of juvenile fish species presented a significantly larger reduction in the two impact areas compared to the control area (there was a decline in both areas, probably dependent of seasonal changes and growth of juveniles). Likewise, the adult fish showed a significantly smaller increase of abundance and biomass in the two impact areas compared to the trend in the control area. As there where no differences between the two

  6. The Importance of Project-Management in Hospital Information System Construction%论项目管理在HIS系统建设中的重要作用

    Institute of Scientific and Technical Information of China (English)

    曹茂诚; 陈旭; 何及夫; 孙小虎

    2012-01-01

    在HIS系统建设中引入项目管理,按照项目管理的方法,启动、计划、执行、控制和结束项目有现实意义.在分析传统方法的基础上,结合项目管理的理论、方法和工具,研究了HIS系统建设过程中需要关注的问题.%Introducing project management into the construction of Hospital Information System, and to startup, plan, execute, manage and close program according to the method of project management is a significant and valuable work. Based on the analysis of traditional method, combined with the theories, methods and tools of the project management, we proposed several research issues which should be given more attention during the period of constructing of hospital information system.

  7. Simulation, construction and testing of a two-cylinder solar Stirling engine powered by a flat-plate solar collector without regenerator

    Energy Technology Data Exchange (ETDEWEB)

    Tavakolpour, Ali Reza; Zomorodian, Ali [Department of Mechanics of Farm Machinery Engineering, Shiraz University, Shiraz (Iran); Akbar Golneshan, Ali [Department of Mechanical Engineering, Shiraz University, Shiraz (Iran)

    2008-01-15

    In this research, a gamma-type, low-temperature differential (LTD) solar Stirling engine with two cylinders was modeled, constructed and primarily tested. A flat-plate solar collector was employed as an in-built heat source, thus the system design was based on a temperature difference of 80{sup o}C. The principles of thermodynamics as well as Schmidt theory were adapted to use for modeling the engine. To simulate the system some computer programs were written to analyze the models and the optimized parameters of the engine design were determined. The optimized compression ratio was computed to be 12.5 for solar application according to the mean collector temperature of 100{sup o}C and sink temperature of 20{sup o}C. The corresponding theoretical efficiency of the engine for the mentioned designed parameters was calculated to be 0.012 for zero regenerator efficiency. Proposed engine dimensions are as follows: power piston stroke 0.044 m, power piston diameter 0.13 m, displacer stroke 0.055 m and the displacer diameter 0.41 m. Finally, the engine was tested. The results indicated that at mean collector temperature of 110{sup o}C and sink temperature of 25{sup o}C, the engine produced a maximum brake power of 0.27 W at 14 rpm. The mean engine speed was about 30 rpm at solar radiation intensity of 900 W/m{sup 2} and without load. The indicated power was computed to be 1.2 W at 30 rpm. (author)

  8. 太阳能发电在新农村中的应用探讨%The Application Research of Solar Power Generation in New Rural Construction

    Institute of Scientific and Technical Information of China (English)

    于先坤

    2011-01-01

    为了探讨研究太阳能发电技术在新农村建设中的应用前景,本文以安徽省马鞍山市博望镇三杨村为研究对象,通过问卷调查和实地调研方法对该村的能源消费和建筑能耗等情况进行了解,并以太阳能光伏发电技术中的LED路灯照明系统为例,将新型太阳能LED路灯和传统高压钠灯系统在造价成本和节能减排等方面进行比较分析.结果表明:在造价成本方面,新型太阳能路灯在初始设备费用和光源成本方面并不占优势,但是由于其不需要铺设电缆和消耗电能,一次性成本回收较快;而在节能减排方面,其表现出较强的优越性.因此,太阳能发电技术在新农村建设中具有较大的应用发展空间,同时又能够满足国家“十二五”规划中关于节能减排的目标.%In order to explore the solar power generation technology in the new rural construction of application prospect, in this paper, we took Sanyang village, Bowang Town Manshan city, in Anhui Province as research object, through the questionnaire and on-the-spot investigation of the energy consumption of building energy consumption and understanding, etc, and with solar photovoltaic power generation technology of solar LED lighting, taking the new solar LED street lamps and traditional high pressure sodium in cost and energy conservation and so on for example camying on the comparison analysis. The results shows that in cost, the new solar street lamps aren't dominant in the initial equipment costs and light source costs but with no cable and power consumption, having faster one - time cost recovery; and in the energy conservation and emission reduction, new solar street lamps has stronger superiority. So, in the new rural construction, solar power generation has, and can also meet the goals of the “ Twelveth Five - year Plan”.

  9. 宿州电力通信网智能化建设与改造%Intelligent Construction and Transformation of Electric Power Communication Network in Suzhou

    Institute of Scientific and Technical Information of China (English)

    杜永平; 杨富民; 花纯征; 郑波; 赵磊

    2012-01-01

    在简单介绍宿州电力通信网现状的基础上,分析了原通信网在传输网结构、站点安全、业务应用和设备老化等方面存在的问题和不足。结合通信网改造需求和未来发展方向,提出以建设自动交换光网络ASON(Automatic Switched Optical Network)技术为支撑的电力通信网智能化为方向的改进目标。结合地区电力通信网实际实施的智能化建设与改造,促进主备网及配电接入网的互联,并进行新型通信网下的业务再分配,初步建成坚强的地区电力智能通信网,充分满足当前和今后的电力业务需求,同时也为全面开展智能电网建设打下坚实的基础。%On the basis of a brief introduction on status of electric power communication network in Suzhou, the problems and deficiencies on communication network, site security, business applications and equipment aging are analyzed. By combination of the reformation demand in communication network and the future direction, the improvement aim of the building of ASON ( Automatic Switched Optical Net- work) technology to support intelligent power communication network is proposed. Combined with the ac- tual intelligent construction and transformation of the regional power communication network, promoting the interconnection between the active-standby network and the distribution access network, redistributing the businesses under the new communication network, a strong regional electric power intelligent commuuication network is built initially, to meet the demands of the current and future electricity businesses fully, meanwhile to lay a solid foundation on a comprehensive implementation of smart grid construction.

  10. Clean Government Construction from the Perspective of Power%权力视角下的高校廉政建设

    Institute of Scientific and Technical Information of China (English)

    吴洁; 陈会萍

    2015-01-01

    In recent years, with the deepening of the reform of the management system in colleges and universities, the number of corruption cases is on the rise. Units relating to infrastructure, procurement, logistics and enrollment have become the epi-center of corruption in colleges and universities. Behaviors of some individuals and factions occupying resources and power contribute to corruption in universities, which is rooted in separation of bodies with power, liberty in exertion of power, and lack of supervision. To further advance clean administration and the mood of the Party, to maintain its purity, there should be re-strictions on power, strengthening the consciousness of power coming from the law, and emphasis should be laid on supervision of power, so that corruption can be fundamentally prohibited, and universities can be made bases for cultural inheritance, talent cultivation, and construction of advanced culture.%近年来,高校权力腐败案件不断增多,基建、采购、后勤、科研和招生等领域已成为腐败重点区域。高校权力腐败是高校占有学校资源并拥有相应权力的个人或小团体为谋取私利而损害学校利益和公共利益的行为。其根源就在于权力主体的分离、权力行使的随意性和权力监督的缺位。要进一步推进高校党风廉政建设,维护党的纯洁性,应加强权力制约,强化权力法定,注重权力监督,从根本上遏制腐败,使高校真正成为传承文明、培育人才、建设先进文化的重要基地。

  11. 智能变电站建设对电力系统影响分析%Analysis of Smart Substation Construction Impact on Power System

    Institute of Scientific and Technical Information of China (English)

    代文章

    2012-01-01

    Smart substation is the direction and development trends of substation automation system. This article introduced the characteristic of smart substation, analyzing the intelligent substation digital, distributed and centralized building model, doing deep research of smart substation construction impact of power system.%智能变电站是变电站自动化系统发展的方向和趋势。本文介绍了智能变电站的特点,分析了智能变电站的数字化、分散式和集中式建设模式,深入研究了智能变电站建设对电力系统的影响。

  12. Construction Management of Mountainous Photovoltaic Power Stations%山地光伏电站建设管理经验浅析

    Institute of Scientific and Technical Information of China (English)

    钟海民

    2016-01-01

    针对山地光伏电站特点,对项目实施中容易被忽视但却对进度、投资和后期运行等影响较大的一些具体问题进行了分析,就如何避免或减小这些问题的影响提出了相关措施,以保证项目顺利实施。%Considering the characteristics of mountainous photovoltaic power stations , several specific issues that are of considerable influences on the construction progress , investment and operation of the stations but easily overlooked are discussed .Correspondingly , management measures are proposed , which could avoid or reduce the influences of these is-sues and ensure the smooth implementation of the projects .

  13. Photovoltaic energy conservation: Unlimited power supply. Optimized construction and use of grid-connected solar power systems. 4. rev. ed.; Photovoltaik. Strom ohne Ende. Netzgekoppelte Solarstromanlagen optimal bauen und nutzen

    Energy Technology Data Exchange (ETDEWEB)

    Seltmann, Thomas

    2009-07-01

    The author of the contribution under consideration reports on the essential aspects of the photovoltaics in easily understandable and well structured texts with valuable hints, examples, check lists, diagrams, photos and tables. Beyond this, the author also supplies answers to legal and financial questions. All important data, conditions of power supply (Renewable energy resources act) and the detailed financing calculation are brought up to date.

  14. Construction Proposal of Anti-fouling Coatings in Nuclear Power Plants%核电站防海生物涂料施工建议

    Institute of Scientific and Technical Information of China (English)

    陈纪国

    2016-01-01

    Anti-fouling coatings have been widely used in the domestic nuclear power plants. Currently,a wide variety of anti-fouling coatings has been in market, but poor management in the selection and application led to rapid depletion and high cost of anti-fouling coatings. This paper introduces the anti-fouling principle, focuses on self-polishing anti-fouling coatings and low surface energy anti-fouling coatings. In conjunction with the construction quality control, maintenance, etc., this paper presents some suggestions and measures about the construction of anti-fouling coatings in nuclear power plant.%防止海生物附着的防海生物涂料已在国内核电站广泛应用.目前市面上的防海生物涂料种类繁多,但在选型和应用中疏于管理,导致防海生物涂料耗损快、消耗大、成本高等一系列问题.本文首先介绍了防海生物涂料的种类及原理,重点讲述无锡自抛光防海生物涂料和低表面能防海生物涂料的实际应用情况并结合核电站施工质量控制、维修等方面,提出了关于核电站防海生物涂料施工的一些建议及对策.

  15. 智库建设的困境摆脱与国家软实力提升%The Way-out of the Think-tank Construction and the Improvement of the National Soft Power

    Institute of Scientific and Technical Information of China (English)

    陈双梅

    2012-01-01

    Think-tank is the important embodiment of national soft power. The improvement of the national soft power has brought a favorable condition for the think-tank construction mechanism innovation since the reforming and opening-up. But in the new historical conditions, the non-autonomy of the official think-tank, the lagging development of think-tank out of the system, the vague setting and positioning , the inadequate construction and development security has affects the promotion of the national soft power. It is the way-out to strengthen the official think-tank, construct the semi-official think-tank, support the non-government think-tank, develop the university affiliated think-tank, establish a interactive cooperation mechanism among the various types of think-tank.%智库是国家软实力的重要体现。改革开放以来,国家软实力的提升为智库建设的机制创新创造了有利条件。但在新时期新的历史条件下,由于体制内官方智库的非自主性、体制外智库发展的滞后性、智库设置和定位的模糊化、智库建设和发展的保障不足等仍影响着国家软实力的提升。不断加强官方智库建设,高度重视半官方智库建设,加大民间智库的扶持力度,引导大学附属型智库的积极发展,建立各类智库的互动合作机制,是我国进一步提升国家软实力的必由之路。

  16. Capabilities, Design, Construction and Commissioning of New Vibration, Acoustic, and Electromagnetic Capabilities Added to the World's Largest Thermal Vacuum Chamber at NASA's Space Power Facility

    Science.gov (United States)

    Motil, Susan M.; Ludwiczak, Damian R.; Carek, Gerald A.; Sorge, Richard N.; Free, James M.; Cikanek, Harry A., III

    2011-01-01

    NASA s human space exploration plans developed under the Exploration System Architecture Studies in 2005 included a Crew Exploration Vehicle launched on an Ares I launch vehicle. The mass of the Crew Exploration Vehicle and trajectory of the Ares I coupled with the need to be able to abort across a large percentage of the trajectory generated unprecedented testing requirements. A future lunar lander added to projected test requirements. In 2006, the basic test plan for Orion was developed. It included several types of environment tests typical of spacecraft development programs. These included thermal-vacuum, electromagnetic interference, mechanical vibration, and acoustic tests. Because of the size of the vehicle and unprecedented acoustics, NASA conducted an extensive assessment of options for testing, and as result, chose to augment the Space Power Facility at NASA Plum Brook Station, of the John H. Glenn Research Center to provide the needed test capabilities. The augmentation included designing and building the World s highest mass capable vibration table, the highest power large acoustic chamber, and adaptation of the existing World s largest thermal vacuum chamber as a reverberant electromagnetic interference test chamber. These augmentations were accomplished from 2007 through early 2011. Acceptance testing began in Spring 2011 and will be completed in the Fall of 2011. This paper provides an overview of the capabilities, design, construction and acceptance of this extraordinary facility.

  17. Supplemental information for a notice of construction for the Fueled Clad Fabrication System, the Radioisotope Power Systems Facility, and the Fuel Assembly Area

    Energy Technology Data Exchange (ETDEWEB)

    1989-08-01

    This ''Notice of Construction'' has been submitted by the US Department of Energy-Richland Operations Office (P.O. Box 550, Richland, Washington 99352), pursuant to WAC 402-80-070, for three new sources of radionuclide emissions at the Hanford Site in Washington State (Figure 1). The three new sources, the Fueled Clad Fabrication System (FCFS) the Radioisotope Power Systems Facility (RPSF) and the Fuel Assembly Area (FAA) will be located in one facility, the Fuels and materials Examination Facility (FMEF) of the 400 Area. The FMEF was originally designed to provide for post- irradiation examination and fabrication of breeder reactor fuels. These FMEF missions were cancelled before the introduction of any fuel materials or any irradiated material. The current plans are to use the facility to fabricate power supplies to be used in space applications and to produce Fast Flux Test Facility (FFTF) fuel and target assemblies. The FCFS and the RPSF will produce materials and assemblies for application in space. The FAA project will produce FFTF fuel and target assemblies. The FCFS and the RPSF will share the same building, stack, and, in certain cases, the same floor space. Given this relationship, to the extent possible, these systems will be dealt with separately. The FAA is a comparatively independent operation though it will share the FMEF complex.

  18. Index System Construction and Its Application in Chaozhou Power Supply Bureau%指标体系构建及其在潮州供电局的应用研究

    Institute of Scientific and Technical Information of China (English)

    李瑞锋; 黄亮

    2013-01-01

    企业发展战略的落地实施及有效执行离不开指标体系的构建与深入实效的应用,本文通过对指标体系的构建思路、原则、管理内容、主要方法及步骤的分析,以潮州供电局的具体实践及应用为例说明指标体系在战略闭环管理的重要作用,为企业指标管理乃至精益化管理工作提供有益启示。%The effective implementation of enterprise development strategy is dependent on the index system construction and further practical application. Through analysis of the construction idea, principle, management content, main method and steps of the index system, and with the concrete practice and application of Chaozhou Power Supply Bureau as an example, this article shows the important role of index system in the strategic enterprise closed -loop management and provides useful enlightenment for the index management or even lean management of the enterprise.

  19. Culture Construction is an Important Factor to the Healthy Development of Blood Bank%文化建设是推动血站健康发展的重要因素

    Institute of Scientific and Technical Information of China (English)

    闫麟; 李大元; 张秦永; 魏耀辉; 赵花兰

    2011-01-01

    加强血站文化建设,多方面、多层次、多方位树立血站良好的社会形象,是全面推动血站建设和发展的重要因素.指出应从物质、制度、精神、环境及行为5方面积极构建血站文化,从而促进血站质量管理及服务水平的提高.%Strengthening culture construction of blood bank, multifaceted setting a good social image of blood bank is an important factor to promote construction and development of blood bank. The paper pointed out that the culture construction of blood bank should be promoted from five aspects: the material, system, spiritual, environmental and behavioral, to promote quality management and service level

  20. 建筑施工质量控制和安全管理的重要作用%The Important Role of Construction Quality Control and Safety Management

    Institute of Scientific and Technical Information of China (English)

    史建波

    2014-01-01

    The construction industry in China is still in the extensive management and backward form. In foreign countries, the digital informatization of construction quality and safety is widely used. Our country also attached great importance to the construction safety in production, but in the use of construction industry construction of modern technology in China is not mature enough, so the route one must take to improve project management level in China is to grasp a set of scientific and practical engineering management system. Thus, we can avoid the occurrence of some unsafe factors in construction work. So how to do a good job of production safety has become a priority among priorities in building engineering construction.%我国建筑行业现在还处于管理比较粗放和落后的形式。在国外,数字化信息化的建设工程质量安全普遍得到运用。虽然我国对建筑施工安全生产也非常重视,但是在我国建筑行业施工现代技术运用就显得不够成熟,因此提高我国建设项目管理水平的必由之路就是掌握一套科学和实用性较强的数字化工程管理系统。这样在进行施工作业的时候,可以避免一些不安全的因素发生,所以如何做好安全生产工作就成为建筑工程施工的重中之重。

  1. Is the Hegemonic Position of American Culture Able to Subjugate Local Cultures of Importing Countries? A Constructive Analysis on the Phenomenon of Cultural Localization

    Science.gov (United States)

    Chiang, Tien-Hui

    2014-01-01

    It has been argued that globalization assists the USA to gain a hegemonic position, allowing it to export its culture. Because this exportation leads to the domination by American culture of the local cultures of importing countries, which are the key element in sustaining their citizens' national identity, citizens of these countries are…

  2. Is the Hegemonic Position of American Culture Able to Subjugate Local Cultures of Importing Countries? A Constructive Analysis on the Phenomenon of Cultural Localization

    Science.gov (United States)

    Chiang, Tien-Hui

    2014-01-01

    It has been argued that globalization assists the USA to gain a hegemonic position, allowing it to export its culture. Because this exportation leads to the domination by American culture of the local cultures of importing countries, which are the key element in sustaining their citizens' national identity, citizens of these countries are…

  3. Importance of Seepage Canal Construction on Agricultural Development%浅析防渗渠建设对农业发展的重要性

    Institute of Scientific and Technical Information of China (English)

    韦云方

    2015-01-01

    新疆是我国西北部内陆地区,水资源匮乏,主要依靠几条内陆季节性河流进行农业灌溉,常出现全年干旱的情况。因此,立足于新疆地区的实际情况,阐述了防渗渠建设、使用和管理等方面的问题,总结了现有的一些农业技术,从而为下一阶段的研究和实践打下基础。%Xinjiang in northwest China inland areas, water scarcity, mainly rely on a few seasonal rivers inland agricultural irrigation, drought conditions often occur throughout the year. Therefore, based on the actual situation in the Xinjiang region, elaborated problems seepage canal construction, use and management, summed up some of the existing agricultural technology, so as to lay the foundation for the next phase of research and practice.

  4. The logic of the electric power industry competitive reformulation and the real construction of the dissent; A logica da reforma competitiva da industria eletrica e a construcao real do dissenso

    Energy Technology Data Exchange (ETDEWEB)

    Bicalho, Ronaldo

    2007-07-01

    The real electrical power industry continues to exist, and so the real institutions and the concrete results of the reformulation, establishing a constant conflict among belief and real limitations to the introduction to competition. The solution for this conflict is not to reinforce the belief, but the rising of the presence of real. This implies in the construction of a agenda of real problems and therefore of research of real solutions allowing the real convergence and consensus construction.

  5. Construction of soft power of oversea resources exploitation%论海外资源开发中的软实力建设

    Institute of Scientific and Technical Information of China (English)

    郭磊

    2012-01-01

    Oversea resources exploitation is a complex systematic engineering. It requires not only hard power on financing, S&T, but also the soft power to learn the political environment, economy and history of the objective country. To do so can it apper-ceive the development trend of objective country and evade hidden risks, and to ensure the exploitation proceed smoothly. More and more, soft power becomes the important measure to improve external environment in oversea resource exploitation.%海外资源开发是一个复杂的系统工程,不仅要求有较强的金融、科技方面的“硬实力”,更要打造“软实力”,提升对目的国政治经济、历史人文的了解,把握发展趋势,正确应对,以保障资源开发的顺利进行.“软实力”越来越成为海外资源开发中改善外部关系,规避潜在风险的重要手段.

  6. Introduction of characteristics and construction methods for Lungmen NPP

    Energy Technology Data Exchange (ETDEWEB)

    Hur, Kyung Phil; Manager, General [Nuclear Project Business Team, Seoul (Korea, Republic of)

    2007-04-15

    Daewoo Engineering and Construction Co., Ltd. has taken part in the construction of ABWR (Advance Boiling Water Reactor of capacity of 1,350MW) at Lungmen site in Taiwan since 1999 as a member of Joint Company for the Nuclear Island Civil Work and Nuclear Island Equipment and Piping Work. This paper discusses the introduction of NSSS of ABWR and the major construction methods applied to Lungmen Nuclear Power Plants. Even though there is no BWR or ABWR type of Nuclear Power Plants built in Korea, the information and data related to the newly advanced construction technologies which has been already applied successfully is very important for the future overseas expansion.

  7. Construction of UHVAC Test Base

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    The construction of the UHVAC test base of SGCC is an important component of the pilot project on UHVAC power transmission and transformation in China. This paper introduces the layout, technical requirements and main test functions of the UHVAC test base as well as difficulties during construction. It lays stress on the characterization of a 1 000-kV single-circuit test line, a 1 000-kV one-tower double-circuit test line, a full voltage test site for UHV equipment, a climate laboratory, a corona cage and a...

  8. Construction of UHVAC Test Base

    Institute of Scientific and Technical Information of China (English)

    Yang Yingjian; Hu Yi; Wu Xiong; Wu Zhirong; Wan Qifa; Liu Xianjin; Cai Wei

    2009-01-01

    @@ The construction of the UHVAC test base of SGCC is an important component of the pilot project on UHVAC power transmission and transformation in China.This paper introduces the layout,technical requirements and main test functions of the UHVAC test base as well as difficulties during construction.It lays stress on the characterization of a 1 000-kV single-circuit test line,a 1 000-kV one-tower double-circuit test line,a full voltage test site for UHV equipment,a climate laboratory,a corona cage and a long-wave-front impulse voltage generator.

  9. Simulation Training System Construction of Thermal Power Station%火电机组仿真培训体系的建设

    Institute of Scientific and Technical Information of China (English)

    王玉文; 聂玉强

    2016-01-01

    随着火电机组自动化程度的不断提高,对集控运行人员的操控能力提出了更高、更新的要求。仿真培训由于它独特的培训方式,越来越受到火电企业的青睐。完善的仿真培训体系确保了仿真培训的实施和培训效果。本文阐述,仿真培训体系的建设可以从两方面入手,一方面是要确保开发一套与现场高逼真度仿真系统,来满足仿真培训的硬件需求;另一方面是要加强仿真培训教练员的培养和仿真培训管理制度的建设,才能确保仿真培训的效果,按质按量地培训工作。%With the automation development of thermal power station , the requirements of centralized con-trol operators are updated .More thermal power companies are interested in simulation training system due to its unique training methods .The complete simulation training system can ensure the simulation training application and performance .This paper proposes that simulation training system construction can start with two fields.First, a high fidelity simulation system shall be developed to ensure the training hardware requirements .Secondly , the training of simulation trainers and the systems of simulation training manage -ments shall be enhanced to ensure the simulation training performance with necessary quality and quantity .

  10. Construction and characterization of two bacterial artificial chromosome libraries of pea (Pisum sativum L.) for the isolation of economically important genes.

    Science.gov (United States)

    Coyne, C J; McClendon, M T; Walling, J G; Timmerman-Vaughan, G M; Murray, S; Meksem, K; Lightfoot, D A; Shultz, J L; Keller, K E; Martin, R R; Inglis, D A; Rajesh, P N; McPhee, K E; Weeden, N F; Grusak, M A; Li, C-M; Storlie, E W

    2007-09-01

    Pea (Pisum sativum L.) has a genome of about 4 Gb that appears to share conserved synteny with model legumes having genomes of 0.2-0.4 Gb despite extensive intergenic expansion. Pea plant inventory (PI) accession 269818 has been used to introgress genetic diversity into the cultivated germplasm pool. The aim here was to develop pea bacterial artificial chromosome (BAC) libraries that would enable the isolation of genes involved in plant disease resistance or control of economically important traits. The BAC libraries encompassed about 3.2 haploid genome equivalents consisting of partially HindIII-digested DNA fragments with a mean size of 105 kb that were inserted in 1 of 2 vectors. The low-copy oriT-based T-DNA vector (pCLD04541) library contained 55 680 clones. The single-copy oriS-based vector (pIndigoBAC-5) library contained 65 280 clones. Colony hybridization of a universal chloroplast probe indicated that about 1% of clones in the libraries were of chloroplast origin. The presence of about 0.1% empty vectors was inferred by white/blue colony plate counts. The usefulness of the libraries was tested by 2 replicated methods. First, high-density filters were probed with low copy number sequences. Second, BAC plate-pool DNA was used successfully to PCR amplify 7 of 9 published pea resistance gene analogs (RGAs) and several other low copy number pea sequences. Individual BAC clones encoding specific sequences were identified. Therefore, the HindIII BAC libraries of pea, based on germplasm accession PI 269818, will be useful for the isolation of genes underlying disease resistance and other economically important traits.

  11. Redes alternativas de comunicación, framing y la construcción del poder político (Alternative communication networks, framing and construction of political power

    Directory of Open Access Journals (Sweden)

    Mayra Martínez Avidad

    2011-12-01

    Full Text Available El objetivo del presente artículo es analizar el papel de las redes alternativas de comunicación en la construcción del poder político a través del proceso de framing o enmarcado. En los últimos años, la capacidad del público para producir (nuestros propios mensajes que potencialmente desafíen los encuadres fijados por la elite política se ha expandido enormemente con la llegada de Internet y las comunicaciones móviles. En este sentido, las redes virtuales son importantes porque pueden aumentar la capacidad de las masas para comunicarse entre sí transformando los marcos de referencia individuales en marcos interpretativos de carácter colectivo.The aim of this paper is to analyze the role of alternative communication networks in the construction of political power through the process of framing. In recent years, the ability of the public to produce (our own messages that potentially challenge those frames established by political elites has been importantly expanded by the advent of Internet and mobile communications. In this sense, virtual networks are important because they can influence the capacity of masses to communicate with each other transforming individual frames of reference into collective interpretative frames.

  12. First Aspect of Conventional Power System Assessment for High Wind Power Plants Penetration

    Directory of Open Access Journals (Sweden)

    A Merzic

    2012-11-01

    Full Text Available Most power systems in underdeveloped and developing countries are based on conventional power plants, mainly "slow-response" thermal power plants and a certain number of hydro power plants; characterized by inflexible generating portfolios and traditionally designed to meet own electricity needs. Taking into account operational capabilities of conventional power systems, their development planning will face problems with integration of notable amounts of installed capacities in wind power plants (WPP. This is what highlights the purpose of this work and in that sense, here, possible variations of simulated output power from WPP in the 10 minute and hourly time interval, which need to be balanced, are investigated, presented and discussed. Comparative calculations for the amount of installed power in WPP that can be integrated into a certain power system, according to available secondary balancing power amounts, in case of concentrated and dispersed future WPP are given. The stated has been done using a part of the power system of Bosnia and Herzegovina. In the considered example, by planned geographically distributed WPP construction, even up to cca. 74% more in installed power of WPP can be integrated into the power system than in case of geographically concentrated WPP construction, for the same available amount of (secondary balancing power. These calculations have shown a significant benefit of planned, geographically distributed WPP construction, as an important recommendation for the development planning of conventional power systems, with limited balancing options. Keywords: balancing reserves,  geographical dispersion, output power  variations

  13. Avian post-construction studies and EIA for planned extension of the Hitra wind-power plant; EIA = environmental impact assessment; Ornitologisk etterundersoekelse og konsekvensutredning i tilknytning til planer for utvidelse av Hitra vindkraftverk

    Energy Technology Data Exchange (ETDEWEB)

    Bevanger, K.; Dahl, E.L.; Gjershaug, J.O.; Halley, D.J.; Hanssen, F.O.; Nygaard, T.; Pearson, M.; Pedersen, H.C.; Reitan, O.

    2010-03-15

    are acceptable/unacceptable with regard to short- and long-term population development and survival for the eagle owl. Apart from this, construction of the Hitra 2 wind power plant is not considered to be unacceptable for the eagle owl, however, it cannot be ruled out that eagle owls will be killed by colliding with the power lines and/or turbines that will be constructed. The final routing plans for the power line seems to generate moderate conflicts with respect to bird collisions; however a prerequisite is that the line follows depressions in the terrain lowering the wires to a height below the treetops in forested areas. This is important with regard to collision hazard, as the tree canopy frequently determines the lower limit for bird flight height. One of the final plan drafts indicates a routing of the power line high up in the terrain, making it particularly exposed in the area from the southernmost turbines and transformer towards the central part of the power plant. Here the collision risk for grouse species as well as raptors and other species will be high. The alternative routing lower into the valley should be preferred. Areas where the terrain topography, together with solar radiation and prevailing wind directions, generate upward air currents (ridge-wind) are identified. Steep slopes towards the south are easily warmed by the sun and create potential areas for ridge wind/thermals. These are frequently used by white-tailed eagles and other raptors to gain height. Locating wind turbines, power lines or other man-made air obstacles in such areas, where frequent hang-wind/thermal generation takes place, may create an increased risk for bird collisions or injuries. Based on SpacEyes viewer, the user will be able to navigate within he terrain model and view the landscape and the turbine locations from a 'birds perspective' (own DVD attached). The final draft plan for the turbine locations indicates planned locations in areas where ridge winds are

  14. Importance of Macrophyte Quality in Determining Life-History Traits of the Apple Snails Pomacea canaliculata: Implications for Bottom-Up Management of an Invasive Herbivorous Pest in Constructed Wetlands.

    Science.gov (United States)

    Yam, Rita S W; Fan, Yen-Tzu; Wang, Tzu-Ting

    2016-02-24

    Pomacea canaliculata (Ampullariidae) has extensively invaded most Asian constructed wetlands and its massive herbivory of macrophytes has become a major cause of ecosystem dysfunctioning of these restored habitats. We conducted non-choice laboratory feeding experiments of P. canaliculata using five common macrophyte species in constructed wetlands including Ipomoea aquatica, Commelina communis, Nymphoides coreana, Acorus calamus and Phragmites australis. Effects of macrophytes on snail feeding, growth and fecundity responses were evaluated. Results indicated that P. canaliculata reared on Ipomoea had the highest feeding and growth rates with highest reproductive output, but all individuals fed with Phragmites showed lowest feeding rates and little growth with poorest reproductive output. Plant N and P contents were important for enhancing palatability, supporting growth and offspring quantity of P. canaliculata, whilst toughness, cellulose and phenolics had critically deterrent effects on various life-history traits. Although snail offspring quality was generally consistent regardless of maternal feeding conditions, the reduced growth and offspring quantity of the poorly-fed snails in constructed wetlands dominated by the less-palatable macrophytes could limit the invasive success of P. canaliculata. Effective bottom-up control of P. canaliculata in constructed wetlands should involve selective planting strategy using macrophytes with low nutrient and high toughness, cellulose and phenolic contents.

  15. Importance of Macrophyte Quality in Determining Life-History Traits of the Apple Snails Pomacea canaliculata: Implications for Bottom-Up Management of an Invasive Herbivorous Pest in Constructed Wetlands

    Directory of Open Access Journals (Sweden)

    Rita S. W. Yam

    2016-02-01

    Full Text Available Pomacea canaliculata (Ampullariidae has extensively invaded most Asian constructed wetlands and its massive herbivory of macrophytes has become a major cause of ecosystem dysfunctioning of these restored habitats. We conducted non-choice laboratory feeding experiments of P. canaliculata using five common macrophyte species in constructed wetlands including Ipomoea aquatica, Commelina communis, Nymphoides coreana, Acorus calamus and Phragmites australis. Effects of macrophytes on snail feeding, growth and fecundity responses were evaluated. Results indicated that P. canaliculata reared on Ipomoea had the highest feeding and growth rates with highest reproductive output, but all individuals fed with Phragmites showed lowest feeding rates and little growth with poorest reproductive output. Plant N and P contents were important for enhancing palatability, supporting growth and offspring quantity of P. canaliculata, whilst toughness, cellulose and phenolics had critically deterrent effects on various life-history traits. Although snail offspring quality was generally consistent regardless of maternal feeding conditions, the reduced growth and offspring quantity of the poorly-fed snails in constructed wetlands dominated by the less-palatable macrophytes could limit the invasive success of P. canaliculata. Effective bottom-up control of P. canaliculata in constructed wetlands should involve selective planting strategy using macrophytes with low nutrient and high toughness, cellulose and phenolic contents.

  16. Research on Quality Risk of Nuclear Power Engineering Construction Project%核电工程项目施工质量风险管理研究

    Institute of Scientific and Technical Information of China (English)

    刘巍; 吴志坚; 尹祥平; 何洪均

    2011-01-01

    Applying the method of system and the engineering practice, the paper studies the nuclear power engineering construction project process of quality risk. From the point of view of risk management, the quality risk is analyzed and evaluated, and the table of quality risk and the model of risk evaluation are obtained. Based on the classification and considering the different risk features, the model of quality risk forewarning and reliability is established.%运用系统的思维方法,结合工程实践,通过核电工程施工项目的质量风险过程研究,从风险管理的角度对核电工程施工项目的质量风险进行分析和评价,得出项目的风险列表和评价模型,并在此基础上运用分级的思想针对不同风险特性建立风险预警和可靠度评价模型及方法.

  17. Enhancement of Nutrient Removal in a Hybrid Constructed Wetland Utilizing an Electric Fan Air Blower with Renewable Energy of Solar and Wind Power

    Directory of Open Access Journals (Sweden)

    Dong Jin Lee

    2015-01-01

    Full Text Available The sewage treatment efficiency of hybrid constructed wetlands (CWs was evaluated under different ventilation methods. The removal efficiencies of biochemical oxygen demand (BOD, total nitrogen (TN, and total phosphorus (TP in the vertical flow- (VF- horizontal flow (HF CWs using an electric fan air blower by the renewable energy of solar and wind power were higher than those by natural ventilation, excluding only suspended solids (SS. The TN treatment efficiency in the CW using the air blower especially increased rapidly by 16.6% in comparison with the CW employing natural ventilation, since the VF bed provided suitable conditions (aerobic for nitrification to occur. The average removal efficiencies of BOD, SS, TN, and TP in the effluent were 98.8, 97.4, 58.0, and 48.3% in the CW using an electric fan air blower, respectively. The treatment performance of the CWs under different ventilation methods was assessed, showing TN in the CW using an electric fan air blower to be reduced by 57.5~58.6% for inlet TN loading, whereas reduction by 19.0~53.3% was observed in the CW with natural ventilation. Therefore, to increase the removal of nutrients in CWs, an improved ventilation system, providing ventilation via an electric fan air blower with the renewable energy, is recommended.

  18. Detailed deposition density maps constructed by large-scale soil sampling for gamma-ray emitting radioactive nuclides from the Fukushima Dai-ichi Nuclear Power Plant accident.

    Science.gov (United States)

    Saito, Kimiaki; Tanihata, Isao; Fujiwara, Mamoru; Saito, Takashi; Shimoura, Susumu; Otsuka, Takaharu; Onda, Yuichi; Hoshi, Masaharu; Ikeuchi, Yoshihiro; Takahashi, Fumiaki; Kinouchi, Nobuyuki; Saegusa, Jun; Seki, Akiyuki; Takemiya, Hiroshi; Shibata, Tokushi

    2015-01-01

    Soil deposition density maps of gamma-ray emitting radioactive nuclides from the Fukushima Dai-ichi Nuclear Power Plant (NPP) accident were constructed on the basis of results from large-scale soil sampling. In total 10,915 soil samples were collected at 2168 locations. Gamma rays emitted from the samples were measured by Ge detectors and analyzed using a reliable unified method. The determined radioactivity was corrected to that of June 14, 2011 by considering the intrinsic decay constant of each nuclide. Finally the deposition maps were created for (134)Cs, (137)Cs, (131)I, (129m)Te and (110m)Ag. The radioactivity ratio of (134)Cs-(137)Cs was almost constant at 0.91 regardless of the locations of soil sampling. The radioactivity ratios of (131)I and (129m)Te-(137)Cs were relatively high in the regions south of the Fukushima NPP site. Effective doses for 50 y after the accident were evaluated for external and inhalation exposures due to the observed radioactive nuclides. The radiation doses from radioactive cesium were found to be much higher than those from the other radioactive nuclides.

  19. 关于加强中国国家软实力建设的几点思考%Thoughts on the Construction of Strengthening China's National Soft Power

    Institute of Scientific and Technical Information of China (English)

    鲍永娟; 张政

    2011-01-01

    10月18日中共十七届六中全会在北京落幕,会议审议通过了《中共中央关于深化文化体制改革、推动社会主义文化大发展大繁荣若干重大问题的决定》,国家文化建设作为软实力塑造的重要组成部分,将人们的视线再次拉回到传统文化建设上来。自从20世纪90年代初美国著名学者约瑟夫·奈提出“软实力”概念以来,它就开始成为世界各国关注的焦点。纵观近现代世界一流强国崛起的历史,可以看出“软实力”建设在其崛起的过程中发挥了重要作用。中国在和平发展过程中如何提高自身的国际影响力,如何通过软实力来塑造中国良好的国际形象,掌控能力、战略信誉以及表现能力非常重要。%October 18, Sixth Plenary Session of 17th Communist Party Congress in Beijing passed "The central committee of the communist party on major issues to deepen reform of the cultural system and promote socialist cultural greater development and prosperity". National culture construction as an important part to shape soft power has drawn people's attention to the traditional culture once again. Since the famous American scholar Joseph Nye proposed "soft power" concept in the early 1990s, soft power has become the focus question in the world. From the history of the great powers" rise throughout the world, we can see that "soft power" has played an important role in the process. In the process of China's peaceful development, it is very important that how to improve the international influence and shape the good international image, control ability, strategic reputation and performance by soft power.

  20. A Study on the Safety Management for Important(High-Risk)Power Consumers%重要(高危)电力用户安全管理

    Institute of Scientific and Technical Information of China (English)

    罗中

    2016-01-01

    This article analyzes the current situation of the safety management of power supply enterprises for impor-tant(high-risk)power consumers.In addition,it discusses about relevant measures in the aspects of approvals of such power consumers,machine accounts,asset property rights,contracts of power supply and consumption,opera-tion and power business expansions.%分析供电企业对重要(高危)电力用户进行安全管理的现状,探讨供电企业为开展安全管理,在重要(高危)电力用户报批、台帐、资产产权、供用电合同、运行及业扩等方面采取的措施。

  1. 供电企业全员培训机制建设研究%Research on the construction of full training mechanism for power supply enterprises

    Institute of Scientific and Technical Information of China (English)

    赵晓龙

    2016-01-01

    In the process of modern enterprise management,human resources management is a very important part of the.At present,the power supply enterprise human resources management is in traditional mode to the modern mode of strategic improvement process,has established a preliminary mechanism of human resource management,but in personnel training and development strategy in the process still exist many problems,making human resources training effect is not ideal. Along with our country to the power supply enterprise's gradual attention,the power supply enterprise needs to carry on the reform unceasingly,so as to consummate the enterprise human resources training mechanism,promotes the staff's comprehensive quality, promotes the enterprise's progress and the development.%在现代的企业管理过程中,人力资源管理是十分重要的组成部分。目前,供电企业人力资源管理正处在传统模式到现代模式的战略改进过程中,已经建立了初步的人力资源管理机制,但是在进行人员培训和战略开发过程中还存在着许多问题,使得人力资源培训的效果并不理想。随着我国对供电企业的逐渐重视,供电企业需要不断的进行改革,从而完善企业人力资源的培训机制,提升员工的综合素质,促进企业的进步和发展。

  2. On the Stringing Construction Technology of Transmission Lines Crossing without Power Outage%浅析输电线路不停电跨越架线施工技术

    Institute of Scientific and Technical Information of China (English)

    高玉恒

    2014-01-01

    With the development of economy, electric power industry develops faster and faster and transmission lines increase accordingly. At present, the transmission line is faced with the status that new line crosses with the live line. If power outage is needed to apply for a region, the power construction is very complicated, even if the power outage demand is met, it also needs a long time to carry on the construction, thus affecting the whole power grid construction. In order to solve this problem, the crossing construction technology without power outage arises at the historic moment. Therefore, researchers must analyze and summarize the stringing construction technology of transmission lines crossing without power outage. Combined with work experience for many years, the author makes a brief analysis on the stringing construction technology of transmission lines crossing without power outage from the general method and process of the technology.%随着经济的发展,电力行业发展越来越快,输电线路因此不断增加。目前,我国输电线路面临着新建线路与带电线路交叉跨越的现状,如果某地区需要申请停电,停电施工会非常复杂,即使满足了停电需求,施工也要等待很长一段时间,从而影响整个电网工程建设。为了解决这一难题,不停电跨越施工技术应运而生,因此,研究人员必须对输电线路不停电跨越架线施工技术进行分析和总结。笔者结合多年工作经验,从不停电跨越架线施工的一般方法和流程着手,对输电线路不停电跨越架线施工技术作了简要分析。

  3. Research on Grounding Network Construction and Management of Power System%关于电力系统接地网施工与管理的研究

    Institute of Scientific and Technical Information of China (English)

    叶喜太

    2011-01-01

    接地网的用途极其广泛,一般用在工作(系统)接地、保护接地、防雷电和防静电接地等,做好电网接地施工工作并确保接地装置的安全,是一项非常重要的工作,因为它是维护变电站安全可靠运行、保障运行人员和电气设备安全运行的根本保证和重要措施.%The application of grounding network is extremely broad, which is generally used in work (system) grounding, protective grounding,lightning protection and anti-static grounding, doing well grid ground construction work and ensuring the safety grounding device is a very important work, because it is the fundamental guarantee and important measure to maintain safe and reliable operation of substation and guarantee the security of running personnel and electrical equipment operation.

  4. On grounding equipment construction of wind power stations at mountains with high earth resistivity%高土壤电阻率山地风电工程接地装置施工探讨

    Institute of Scientific and Technical Information of China (English)

    涂晓

    2016-01-01

    结合某风电场工程的实际情况,提出了该风电工程中接地布置的设计要求,并针对接地装置的施工难点提出了具体的解决措施,有利于保证接地装置的施工质量,维护电力系统的稳定运行。%Combininf with the fact at some wind power project,the paper points out the desifn requirements for the froundinf allocation of the wind power projects,and points out the solutions accordinf to the construction difficulties of the froundinf equipment,so as to ensure the con-struction quality of the equipment,and maintain the stable operation of the power system.

  5. Promoting Construction of Effective Hydroelectric Power Station with Scientific and Technical Innovation%以科技创新推进效益岩电的建设

    Institute of Scientific and Technical Information of China (English)

    王家华

    2013-01-01

    Datang Yantan hydropower limited liability company (hereinafter referred to as Yantan hydropower company)ac-tively advocate the concept of “value thinking, profit-oriented”and put it into the operation activities of power production, which promote the construction of effective hydroelectric power station with scientific and technical innovation and drive the steady development of the enterprise. Yantan hydropower company has obtained the remarkable achievement of security and benefits under the impetus of the scientific and technological innovation. Generating 20 years, Yantan hydropower company break through clean energy with 100 billion kW·h to build“Datang sightcing, crown flagship”. Enterprise bursts out great vi-tality by relying on scientific management innovation and excellent team. The paper briefly expounded development process of science and technology work of Yantan hydropower company, and analyzed the work of science and technology's influence on the enterprise benefit, which has some reference value for the field.%  大唐岩滩水力发电有限责任公司(简称岩滩水电公司)积极倡导“价值思维,效益导向”理念并将其融入到电力生产经营活动中,以科技创新推进效益岩电的建设,带动了本企业的持续稳定发展。在科技创新的推动下,岩滩水电公司取得了安全和效益的显著成效。发电20年,岩滩水电公司以突破1000亿kW·h的清洁能源,全力打造“大唐标杆,桂冠旗舰”,通过依靠科学的管理创新和优秀的团队,使企业焕发出勃勃的生机。文章简要阐述了岩滩水电公司科技工作发展进程,并就科技工作对企业效益的影响进行了分析,对电力企业科技管理工作具有借鉴意义。

  6. Controls in new construction reactors-factory testing of the non-safety portion of the Lungmen nuclear power plant distributed control system

    Energy Technology Data Exchange (ETDEWEB)

    Wu, Y. S. [Taiwan Power Company, 242, Roosevelt Road, Sec. 3, Taipei 100, Taiwan (China); Dick, J. W. [Invensys System Inc., 33 Commercial St., Foxboro, MA 02035 (United States); Tetirick, C. W. [GE Energy, 1989 Little Orchard Street, San Jose, CA 95125-1030 (United States)

    2006-07-01

    The construction permit for Taipower's Lungmen Nuclear Units 1 and 2, two ABWR plants, was issued on March 17, 1999[1], The construction of these units is progressing actively at site. The digital I and C system supplied by GE, which is designated as the Distributed Control and Information System (DCIS) in this project, is being implemented primarily at one vendor facility. In order to ensure the reliability, safety and availability of the DCIS, it is required to comprehensively test the whole DCIS in factory. This article describes the test requirements and acceptance criteria for functional testing of the Non-Safety Distributed Control and Information system (DCIS) for Taiwan Power's Lungmen Units 1 and 2 GE selected Invensys as the equipment supplier for this Non-Safety portion of DCIS. The DCIS system of the Lungmen Units is a physically distributed control system. Field transmitters are connected to hard I/O terminal inputs on the Invensys I/A system. Once the signal is digitized on FBMs (Field Bus Modules) in Remote Multiplexing Units (RMUs), the signal is passed into an integrated control software environment. Control is based on the concept of compounds and blocks where each compound is a logical collection of blocks that performs a control function. Each point identified by control compound and block can be individually used throughout the DCIS system by referencing its unique name. In the Lungmen Project control logic and HSI (Human System Interface) requirements are divided into individual process systems called MPLs (Master Parts List). Higher-level Plant Computer System (PCS) algorithms access control compounds and blocks in these MPLs to develop functions. The test requirements and acceptance criteria for the DCIS system of the Lungmen Project are divided into three general categories (see 1,2,3 below) of verification, which in turn are divided into several specific tests: 1. DCIS System Physical Checks a) RMU Test - To confirm that the hard

  7. 双电源重要用户进线管理的实践与探索%Practice and exploration of double power sources important users in-line management

    Institute of Scientific and Technical Information of China (English)

    林亮

    2014-01-01

    In light of present situation and existing problems generally of important dual power users in-line management, by im-proving its in-line network structure and management mode, by put-ting important double power users in-line management into control center, Taicang power supply company improves the power supply reliability.%针对双电源重要用户进线管理的普遍现状及存在问题,江苏太仓市供电公司通过改进其进线网架结构及管理模式,将调控中心引入双电源重要用户进线管理,提高其供电可靠性。

  8. 配电网重要电力用户停电损失及应急策略%Power Supply Interruption Cost of Important Power Consumers in Distribution Network and Its Emergency Management

    Institute of Scientific and Technical Information of China (English)

    李蕊; 李跃; 苏剑; 卜宪德; 侯义明

    2011-01-01

    In distribution network, the outage loss of important power consumers occupies the vast majority of the total outage losses. For this reason, the important power user-based load model, the system model and the outage loss cost model, by which the reliability of distribution network and its economy are analyzed, are built. Beginning with the designing of user questionnaires, the outage loss functions for big industrial consumers, whose production process is complex and their losses caused by interruption are huge, and consumers in other categories are determined, then the load models are built. Utilizing consequences analysis on failure modes, correct reliability indices of distribution network are chosen to compute the reliabilities of load points, thus the system model is built. According to outage loss evaluation rates of load points, the outage loss cost model is built. The reliabilities of load points and system reliability as well outage loss are estimated under three different connection modes, and the effectiveness and accuracy of above-mentioned models are verified by estimation results. It is pointed out that the adoption of distribution generation (DG) is an effective approach to reduce the outage loss in distribution network and improve social emergency capability.%重要电力用户的停电损失占配电网总体停电损失的绝大部分。建立了重要电力用户的配电网负荷模型、系统模型和费用损失模型,对系统可靠性和经济性进行了分析。从设计用户调查表入手,建模确定生产过程复杂、损失巨大的大工业类用户及其它类用户的停电损失函数,从而建立负荷模型。采用故障模式后果分析法选取正确的配电系统可靠性指标对负荷点可靠性进行计算,从而建立系统模型。根据负荷点停电损失评价率建立费用损失模型。针对网络3种不同接线方式下各负荷点和系统可靠性及停电损失进行

  9. Important Constructs in Literacy Learning across Disciplines

    Science.gov (United States)

    Foorman, Barbara R.; Arndt, Elissa J.; Crawford, Elizabeth C.

    2011-01-01

    Currently students who struggle with language and literacy learning are classified with various labels in different states--language learning disabilities, dyslexia, specific language impairment, and specific learning disability--in spite of having similar diagnostic profiles. Drawing on the research on comprehension of written language, we…

  10. Analysis of Limiting Measures of Three-phase Short-circuit Current of 500kV Intensive Receiving-end Power Grid in the Early Stage of UHV Construction

    Directory of Open Access Journals (Sweden)

    Zhang Xiao Hang

    2016-01-01

    Full Text Available This paper took the intensive receiving-end power grid as the research object and analysed the problems of three-phase short-circuit current over-limited of 500kV intensive power grid in the early stage of UHV construction. Firstly, this paper analysed the influence factors of the short-circuit current based on self-impedance analysis model of two-port network theory and the equivalent model of UHV power grid. Then, the applicable current-limiting measures were put forward. Finally, this paper proposed one scheme to solve the problems of three-phase short-circuit current over-limited of 500kV buses in one practical receiving-end power grid and verified the feasibility of this scheme from three different aspects. Aiming at the over-limited influential factors, the applicable current-limiting measures can be taken as follows: separating the 500kV bus at UHV substation, lapping the lines outside the substation and decentralizing the power supplies. The proposed measures can effectively solve the problems of short-circuit current over-limited in the early stage of UHV construction and provide reference for other power grid.

  11. Research in electric power

    CERN Document Server

    Sporn, Philip

    2013-01-01

    Research in Electric Power comprises the lectures presented in the Cornell University Lecture in 1965, which focuses on the research and development of electric energy or technology. The lectures compiled in this book are divided into three chapters. Chapter I traces the dramatic and exciting history of growth of the electric power industry and important contribution of a series of great technological developments. The second chapter examines in great detail the problems demanding research in the main areas of planning, design, and construction of the physical facilities; in successfully and e

  12. Brief Analysis on Power Transmission and Distribution Construction Costs in Rural Areas of China%我国农村电网输变电项目工程造价浅析

    Institute of Scientific and Technical Information of China (English)

    颜安广

    2011-01-01

    近年来,随着我国电力建设的不断加快,国家也加大了对农村电网建设的改革与投入力度.农村电网的输变电改造工程的造价体系强弱,对建设投资的资金利用率和社会效应的城乡一体化都有很到印象,因此,我们要改变以往的传统造价指标模式,提供适应新变化的完善指标体系.%In recent years, with the construction of China's power continues to accelerate, the state also increased the reform and input of the rural power grid construction. Rural power grid transformation construction costs system has a big impact on the utilization of capital construction investment and the social effects of urban-rural integration, therefore, we have to change the past traditional cost index model to adapt to new changes and perfect index system.

  13. Construction Method of Uninterruptible Power Crossing 1 0 kV Overhead Lines%一种不停电跨越10 kV架空线路的施工方法

    Institute of Scientific and Technical Information of China (English)

    黄顺涛; 陈文军

    2015-01-01

    Two-time power cut is required for traditional construction of crossing electric power lines. In order to improve power supply reliability,a kind of construction method of uninterruptible power disassembling 1 0 kV overhead lines was pro-posed. By means of coil typed insulating sheaths,the overhead lines were isolated and nesting between insulating sheath and lines was realized in a way of occlusion of interfaces of insulation buckles. New type high polymer materials were used to make insulating sheaths for improving toughness and scroll wheel occlusal assistant devices were used for installing the insula-ting sheaths so as to reduce wearing and labor intensity. This construction method was applied in six power transmission and transformation projects of Zhuhai Power Supply Bureau of Guangdong Power Grid Co.,Ltd. which could complete con-struction of lines crossing in uninterruptible power state and reduce 4 932 households as power cut. Meanwhile,it could avoid industry and agriculture losses of 6 636 300~8 295 400 yuan which might bring about obvious social and economic benefits.%传统的跨越电力线路施工方法需对用户停电2次,为提高供电可靠性,提出一种不停电装拆10 kV 架空线路跨越架的施工方法。该施工方法通过盘卷式绝缘护套隔离架空线路,并以卡扣接口咬合方式实现绝缘护套与线路的嵌套,采用新型高分子材料制作绝缘护套以提高韧性,利用滚轮咬合辅助器装设绝缘护套以降低磨损和劳动强度。该施工方法在广东电网有限责任公司珠海供电局的6个输变电工程中应用,均可完成不停电状态下的线路跨越施工,共减少停电时户数4932,避免了663.63~829.54万元的工农业经济损失,社会效益和经济效益显著。

  14. MAST Upgrade - Construction Status

    CERN Document Server

    Milnes, Joe; Dhalla, Fahim; Fishpool, Geoff; Hill, John; Katramados, Ioannis; Martin, Richard; Naylor, Graham; O'Gorman, Tom; Scannell, Rory

    2015-01-01

    The Mega Amp Spherical Tokamak (MAST) is the centre piece of the UK fusion research programme. In 2010, a MAST Upgrade programme was initiated with three primary objectives, to contribute to: 1) Testing reactor concepts (in particular exhaust solutions via a flexible divertor allowing Super-X and other extended leg configurations); 2) Adding to the knowledge base for ITER (by addressing important plasma physics questions and developing predictive models to help optimise ITER performance of ITER) and 3) Exploring the feasibility of using a spherical tokamak as the basis for a fusion Component Test Facility. With the project mid-way through its construction phase, progress will be reported on a number of the critical subsystems. This will include manufacture and assembly of the coils, armour and support structures that make up the new divertors, construction of the new set coils that make up the centre column, installation of the new power supplies for powering the divertor coils and enhanced TF coil set, progr...

  15. Discussion on installation construction technology of incineration furnace in waste incineration power project%垃圾焚烧发电项目焚烧炉安装施工工艺探讨

    Institute of Scientific and Technical Information of China (English)

    吉英俊

    2012-01-01

    总结了垃圾焚烧发电项目焚烧炉安装的施工经验,以实际项目为例,研究探讨了焚烧炉安装的工艺流程,从而合理、安全、有序地安排施工,确保工期质量。%This paper summarized the installation construction experience of incineration furnace in waste incineration power project, taking actu- al project as an example, researched and discussed the process of incineration furnace installation, so as to reasonable, safe, orderly arrange construction, ensured project quality.

  16. 配电站与电动汽车充电桩合建的应用研究%Application Research of Combined Construction of Power Distribution Station and Electric Vehicle Charging Pile

    Institute of Scientific and Technical Information of China (English)

    宣婷婷; 孙燕

    2014-01-01

    介绍、论证了配电站与分布式电动汽车充电桩合建的方案。研究解决了充电桩需求,解决充电桩建设社会问题,使生产效率提高。%It introduces power distribution station and distributed electric vehicle charging pile combined construction resolution. It deals with request of charging piles and solves social problems of charging piles construction to improve production efficiency.

  17. On Construction Grammar

    Institute of Scientific and Technical Information of China (English)

    XIAO Kunxue

    2005-01-01

    Constructionist approach with its brand-new perspective has begun to demonstrate its dynamic power. This paper attempts to review the basic ideas, achievements and comparison with generative grammar of Construction Grammar and generalize some problems and future research prospects.

  18. Research on Construction of New Pattern of Relationship between China and Russia as Great Powers%中俄新型大国关系构建探析

    Institute of Scientific and Technical Information of China (English)

    刘丹

    2015-01-01

    中俄新型大国关系是建立在全面战略协作伙伴关系上的全方位的合作关系。其构建符合和平、发展、合作、共赢的时代要求,契合中俄各自的战略利益,亦受到美国等大国因素的影响。在构建中俄新型大国关系的外交实践中,两国在全面战略协作伙伴关系框架下进行了政治、经济、人文、军事等多领域的合作;通过上合组织、金砖国家、20国集团等网状伙伴外交平台开展良性互动;在叙利亚危机、克里米亚问题等热点敏感问题上进行了有效的战略策应。为实现中俄新型大国关系可持续性发展,需要加强两国间人文交流,发展两国传统友谊;消除两国关系中的不和谐音,管控矛盾分歧;提高务实合作,加大“一带一路”战略与俄罗斯欧亚战略的对接。形成能够彼此兼容,成熟而稳定的战略框架,是中俄两国新型大国关系努力的方向。%The new pattern of relationship between China and Russia is the all-around cooperation relationship established on the basis of comprehensive strategic partnership. Its establishment conforms to the requirements of the times for peace, development, cooperation and win-win, accords with the strategic interests of both China and Russia, and is also affected by factors of large powers such as America. During the diplomatic practice to construct new pattern of relationship between China and Russia as great powers, the two countries make cooperation in politics, economy, humanities, military and other fields under the structure of comprehensive strategic partnership, conduct benign interaction through web partnership diplomatic platforms such as SCO, BRICCS and G20, and make effective strategic alignment in hot and sensitive issues including Syria Crisis and Crimea Problem, etc. To achieve continuous development in the new pattern of relationship between China and Russia, the humanistic communication between

  19. Power Electronics

    DEFF Research Database (Denmark)

    Iov, Florin; Ciobotaru, Mihai; Blaabjerg, Frede

    2008-01-01

    energy at the end-user should also be set up. Deregulation of energy has in the past lowered the investment in larger power plants, which means the need for new electrical power sources will be high in the near future. Two major technologies will play important roles to solve the future problems. One...... is to change the electrical power production sources from the conventional, fossil (and short term) based energy sources to renewable energy resources. The other is to use high efficient power electronics in power generation, power transmission/distribution and end-user application. This paper discuss the most...... emerging renewable energy sources, wind energy, which by means of power electronics are changing from being a minor energy source to be acting as an important power source in the energy system. Power electronics is the enabling technology and the presentation will cover the development in wind turbine...

  20. The importance of measuring peak power in radar systems; La importancia de la medida de potencia de pico en sistemas de radar

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-11-01

    radar systems are widely used in civil aviation and military, also on Weather monitoring equipment and road traffic control to name a few. Of these systems depends largely on our security and require power measurements with accuracy. This paper focuses on those radars such as aviation that use bursts of pulses, or pulse modulated to obtain more precise details of the target and are highly sensitive receptors for low-noise measures. (Author)

  1. 电力企业核心竞争力的重要性%Importance of Electric Power Enterprise's Core Competitiveness

    Institute of Scientific and Technical Information of China (English)

    黄文; 王发义; 于雯

    2012-01-01

    在经济市场化的现代社会,竞争日益激烈,电力企业要想在没有硝烟的市场竞争中取得优势地位,立于不败之地,必须要培养自己的核心竞争力.目前因为电力企业所处行业局限性、企业管理不佳、运营体制不适合等限制了发展,如何培养电力企业的核心竞争力就是企业必须考虑的问题.%In the modem society of the market economy, competition becomes increasingly fierce. The electric power enterprises must develop their own core competitiveness in order to obtain the dominant position in the competition and the invincible position in the market. Because of the limitations of electric power enterprises, such as, poor business management, unsuitable operating system, and so on, the development of enterprises is limited. So we must consider how to cultivate the power company's core competitiveness.

  2. ABCDEFG IS - the principle of constructive feedback.

    Science.gov (United States)

    Bhattarai, M

    2007-01-01

    Feedback is an integral part of any learning experience. Constructive feedback is a powerful instrument and facilitates the learner's professional and personal development. "ABCDEFG IS", a mnemonic for the principles of constructive feedback, stands for Amount of the information, Benefit of the trainees, Change behaviour, Descriptive language, Environment, Focused, Group check, Interpretation check, and Sharing information. The eight important steps of feedback are: Ensure prior information, Collect data, Make appropriate meeting arrangement, Begin by encouraging self assessment by the trainee, Highlight areas where the trainee is doing well, Give feedback, Handle reaction maintaining the dignity and Plan actions. Communication and reflection also share many of the principles and steps of constructive feedback and giving regular feedback, thus, helps to improve communication and reflection. The feedback provider would be able to provide genuine feedback by following the appropriate steps and principles of constructive feedback and realize how important and rewarding its role is in teaching learning activities.

  3. Designing and Testing Energy Harvesters Suitable for Renewable Power Sources

    Science.gov (United States)

    Synkiewicz, B.; Guzdek, P.; Piekarski, J.; Zaraska, K.

    2016-01-01

    Energy harvesters convert waste power (heat, light and vibration) directly to electric power . Fast progress in their technology, design and areas of application (e.g. “Internet of Things”) has been observed recently. Their effectiveness is steadily growing which makes their application to powering sensor networks with wireless data transfer reasonable. The main advantage is the independence from wired power sources, which is especially important for monitoring state of environmental parameters. In this paper we describe the design and realization of a gas sensor monitoring CO level (powered by TEG) and two, designed an constructed in ITE, autonomous power supply modules powered by modern photovoltaic cells.

  4. Research of construction management on thermal power project based on life cycle theory%基于全寿命周期的火电工程建设管理研究

    Institute of Scientific and Technical Information of China (English)

    张晓鲁

    2011-01-01

    A method of applying life cycle theory into the control and management on thermal power project construction domain was proposed to fit the strong complexity and particularity in the construction process.An integrated control conceptual model on thermal power project construction was established which consists of quality,schedule, investment and safety.And the organization mode of integrated control was set up.Then, the integrated control flow was illustrated in detail.Finally, an information management platform on thermal power project was built up based on life cycle theory.The application result shows that the theory and the platform provide an effective technical support for the construction and management of the thermal power project.%针对火电工程建设具有很强的复杂性和特殊性,将全寿命周期理论应用于火电工程建设的控制和管理领域,建立了集火电工程建设的质量、进度、投资和安全为一体的集成控制概念模型和管理组织模式,论述了火电工程建设过程集成控制流程,并搭建了全寿命周期管理下的火电工程建设信息管理平台.工程应用实例表明,所提出的理论和搭建的平台能有效地提高火电工程建设管理水平,为火电工程建设的控制与管理提供理论与技术支持.

  5. Shallow Discussion of Traditional Radio and Television Media the Importance of the Construction of the New Media Platform%浅议传统广电媒体建设新媒体传播平台的重要性

    Institute of Scientific and Technical Information of China (English)

    林守惠; 孙茂良

    2014-01-01

    阐述了建设新媒体传播平台对传统广电媒体的重要性和必要性,并就如何充分发挥传统广电媒体自身优势、突出平台建设重点、全力打造具有影响力的全媒体传播平台、加快建立新媒体保障机制、大胆尝试新媒体平台盈利模式等进行了探讨。%this paper expounds the construction of new media communication platform for the importance and necessity of the traditional media of radio,film and television,and on how to give full play to the traditional ad-vantages of radio,film and television media,emphasize on the main point of platform construction,to influential media communication platform,to speed up the establishment of a new media security mechanism,bold new media platform profit model and so on are discussed in this paper.

  6. 76 FR 77963 - Oglethorpe Power Corporation; Proposed Biomass Power Plant

    Science.gov (United States)

    2011-12-15

    ...; ] DEPARTMENT OF AGRICULTURE Rural Utilities Service Oglethorpe Power Corporation; Proposed Biomass Power Plant... (Oglethorpe) for the construction of a 100 megawatt (MW) biomass plant and related facilities (Proposal)...

  7. 核电厂土建施工三大原材料质量控制%Quality control of three main materials for civil construction of nuclear power plant

    Institute of Scientific and Technical Information of China (English)

    王锋

    2011-01-01

    核电厂的建造运行是一项系统工程。为了保证核电厂的质量安全,从设计立项到运行使用,每一个环节的工作都对质量安全产生不同程度影响。与之相关的每一步工作都必须做到质量受控。从核电厂建造过程中土建施工环节中的原材料质量控制入手,着重分析了土建施工中钢材、混凝土材料、模板材料三大主材如何实施质量控制和管理。%The construction and operation of nuclear power plant is a systematic engineering.To ensure quality and safety of nuclear power plants,each work from design to operation can have certain impact on the quality and safety of the project.The quality of each related work shall be controlled.Starting from the quality control over raw materials for the civil construction of nuclear power plant,this article mainly analyzes how to control the quality and manage the three main materials of steel,concrete and modular parts in the civil construction.

  8. 高压架空输电线路大跨越铁塔承台基础施工%On construction of crossing iron tower pier foundation of overhead ultra-high voltage power transmission lines

    Institute of Scientific and Technical Information of China (English)

    张俊平

    2011-01-01

    In the construction of the iron tower foundation power transmission lines,the paper indicates some features,including the weak geological conditions in the foundation,the tough tasks for the pier construction,and the long construction period,the paper introduces the difficulties and features of the crossing pier foundation construction of the power transmission lines,and adopts the effective measures in the cooling cycle water pipe,the temperature checking,and the surface maintenance of the concrete internal apparatus,and achieves satisfactory effects.%针对输电线路铁塔基础施工中,大量基础存在地质条件差、承台基础施工方量大、施工周期长等特点,详细介绍了输电线路大跨越大承台基础施工的难点、特点,在混凝土内部设置冷却循环水管及温度检测、表面养护等技术方面采取了有效的措施,并取得了满意的效果。

  9. How to use solar energy in the home and garden? Instructions and suggestions for easy self-construction of solar-powered systems: garden lighting, fountains, solar accumulators and solar motors; Wie nutze ich Solarenergie in Haus und Garten?. Bauanleitungen und Anregungen zum leichten Selbstbau von Solaranlagen wie z.B. Solar-Gartenbeleuchtung, Solar-Springbrunnen, Solar-Akkumulatoren, Solar-Elektromotoren

    Energy Technology Data Exchange (ETDEWEB)

    Hanus, B.

    1995-08-01

    The book reports on solar energy utilization: - solar energy and photovoltaics, - solar cell modules for self-construction, - self-sufficient solar power supply, - solar-powered pumps and engines, - ventilation and cooling using solar power, - heating using solar power, - garden lighting using solar power. (HW) [Deutsch] Das Buch berichtet ueber die Nutzung von Solarenergie: - Solarenergie und Photovoltaic; - Solarzellenmodule in Selbstbau; - Selbstversorgung mit Solarstrom; - Solar-Pumpen und -Motoren; - Lueften und Kuehlung mit Solarstrom; - Heizen mit Solarstrom; - Gartenbeleuchtung mit Solarstrom. (orig.)

  10. District energy: an important factor in the socially and environmentally responsible solution for the electric power industry; (requiring greater accelerated capital cost allowance treatment for income tax purposes)

    Energy Technology Data Exchange (ETDEWEB)

    Boucher, P. [HSBC James Capel Canada Inc. (Canada); Stevens, S. [Business Development Consumers Utilities (Canada)

    1996-09-01

    The considerable amount of risk associated with the investment in district energy systems was discussed. It was explained that district energy projects frequently require additional capital allowances, particularly in the initial years of a typical project, in order to attract private capital investments to the industry. Advantages of district energy systems were reviewed, among them reduction in CO{sub 2} and NO{sub x} emissions, enhancing energy conservation through the use of high efficiency boilers or thermal waste energy, increasing tax revenue at various levels of government, providing much-needed capital injection into communities, providing construction and operation jobs, and allowing electric utilities to offer cogeneration from older plants helping to avoid stranded investments. 1 tab.

  11. Management of Important Interface Coordinating in EPC Nuclear Power Project%核电总承包项目重要接口协调管理

    Institute of Scientific and Technical Information of China (English)

    郭昊

    2014-01-01

    In this article, the content and key point of interface coordination was summarized, including engineering、procurement and construction. Through compiling EPC integrated schedule、setting up coordinating Engineers and defining coordinating management work,the interface coordination management can be improved effectively.%本文总结了在核电工程总承包模式下设计、采购、施工间重要接口协调管理的内容和关注重点,阐述了通过编制 EPC一体化综合进度计划、设置协调工程师岗位和明确接口协调工作机制三方面工作可有效加强接口协调管理。

  12. Minimising mortality in endangered raptors due to power lines: the importance of spatial aggregation to optimize the application of mitigation measures.

    Directory of Open Access Journals (Sweden)

    Francisco Guil

    Full Text Available Electrocution by power lines is one of the main causes of non-natural mortality in birds of prey. In an area in central Spain, we surveyed 6304 pylons from 333 power lines to determine electrocution rates, environmental and design factors that may influence electrocution and the efficacy of mitigation measures used to minimise electrocution cases. A total of 952 electrocuted raptors, representing 14 different species, were observed. Electrocuted raptors were concentrated in certain areas and the environmental factors associated with increased electrocution events were: greater numbers of prey animals; greater vegetation cover; and shorter distance to roads. The structural elements associated with electrocutions were shorter strings of insulators, one or more phases over the crossarm, cross-shaped design and pylon function. Of the 952 carcasses found, 148 were eagles, including golden eagle (Aquila chrysaetos, Spanish imperial eagle (Aquila adalberti and Bonelli's eagle (Aquila fasciata. Electrocuted eagles were clustered in smaller areas than other electrocuted raptors. The factors associated with increased eagle electrocution events were: pylons function, shorter strings of insulators, higher slopes surrounding the pylon, and more numerous potential prey animals. Pylons with increased string of insulators had lower raptor electrocution rates than unimproved pylons, although this technique was unsuccessful for eagles. Pylons with cable insulation showed higher electrocution rates than unimproved pylons, both for raptors and eagles, despite this is the most widely used and recommended mitigation measure in several countries. To optimize the application of mitigation measures, our results recommend the substitution of pin-type insulators to suspended ones and elongating the strings of insulators.

  13. Minimising mortality in endangered raptors due to power lines: the importance of spatial aggregation to optimize the application of mitigation measures.

    Science.gov (United States)

    Guil, Francisco; Fernández-Olalla, Mariana; Moreno-Opo, Rubén; Mosqueda, Ignacio; Gómez, María Elena; Aranda, Antonio; Arredondo, Angel; Guzmán, José; Oria, Javier; González, Luis Mariano; Margalida, Antoni

    2011-01-01

    Electrocution by power lines is one of the main causes of non-natural mortality in birds of prey. In an area in central Spain, we surveyed 6304 pylons from 333 power lines to determine electrocution rates, environmental and design factors that may influence electrocution and the efficacy of mitigation measures used to minimise electrocution cases. A total of 952 electrocuted raptors, representing 14 different species, were observed. Electrocuted raptors were concentrated in certain areas and the environmental factors associated with increased electrocution events were: greater numbers of prey animals; greater vegetation cover; and shorter distance to roads. The structural elements associated with electrocutions were shorter strings of insulators, one or more phases over the crossarm, cross-shaped design and pylon function. Of the 952 carcasses found, 148 were eagles, including golden eagle (Aquila chrysaetos), Spanish imperial eagle (Aquila adalberti) and Bonelli's eagle (Aquila fasciata). Electrocuted eagles were clustered in smaller areas than other electrocuted raptors. The factors associated with increased eagle electrocution events were: pylons function, shorter strings of insulators, higher slopes surrounding the pylon, and more numerous potential prey animals. Pylons with increased string of insulators had lower raptor electrocution rates than unimproved pylons, although this technique was unsuccessful for eagles. Pylons with cable insulation showed higher electrocution rates than unimproved pylons, both for raptors and eagles, despite this is the most widely used and recommended mitigation measure in several countries. To optimize the application of mitigation measures, our results recommend the substitution of pin-type insulators to suspended ones and elongating the strings of insulators.

  14. Minimising Mortality in Endangered Raptors Due to Power Lines: The Importance of Spatial Aggregation to Optimize the Application of Mitigation Measures

    Science.gov (United States)

    Guil, Francisco; Fernández-Olalla, Mariana; Moreno-Opo, Rubén; Mosqueda, Ignacio; Gómez, María Elena; Aranda, Antonio; Arredondo, Ángel; Guzmán, José; Oria, Javier; González, Luis Mariano; Margalida, Antoni

    2011-01-01

    Electrocution by power lines is one of the main causes of non-natural mortality in birds of prey. In an area in central Spain, we surveyed 6304 pylons from 333 power lines to determine electrocution rates, environmental and design factors that may influence electrocution and the efficacy of mitigation measures used to minimise electrocution cases. A total of 952 electrocuted raptors, representing 14 different species, were observed. Electrocuted raptors were concentrated in certain areas and the environmental factors associated with increased electrocution events were: greater numbers of prey animals; greater vegetation cover; and shorter distance to roads. The structural elements associated with electrocutions were shorter strings of insulators, one or more phases over the crossarm, cross-shaped design and pylon function. Of the 952 carcasses found, 148 were eagles, including golden eagle (Aquila chrysaetos), Spanish imperial eagle (Aquila adalberti) and Bonelli's eagle (Aquila fasciata). Electrocuted eagles were clustered in smaller areas than other electrocuted raptors. The factors associated with increased eagle electrocution events were: pylons function, shorter strings of insulators, higher slopes surrounding the pylon, and more numerous potential prey animals. Pylons with increased string of insulators had lower raptor electrocution rates than unimproved pylons, although this technique was unsuccessful for eagles. Pylons with cable insulation showed higher electrocution rates than unimproved pylons, both for raptors and eagles, despite this is the most widely used and recommended mitigation measure in several countries. To optimize the application of mitigation measures, our results recommend the substitution of pin-type insulators to suspended ones and elongating the strings of insulators. PMID:22140549

  15. The Importance of the Ideological Construction from Gramsci Cultural Hegemony%从葛兰西文化霸权看我国意识形态建设的重要性

    Institute of Scientific and Technical Information of China (English)

    孙锦强; 尼旎

    2014-01-01

    安东尼奥·葛兰西是西方马克思主义的杰出人物,他的文化霸权思想在学术界不断的被引用和解释。然而,这种思想在被引用和解释时出现了许多偏差与误用。他们没有意识到葛兰西的文化霸权和民族交往中的文化霸权是不同的。本文将重新对葛兰西文化霸权进行解读,挖掘其对实践的重要指导意义,探讨文化霸权思想在我国意识形态建设中的重要性。%Antonio Gramsci is outstanding figure of Western Marxism, his cultural hegemony ideas are constantly being cit-ed and explained in academia. However, there were many deviations from misuse when it is referenced and explained. They do not realize that Gramsci's cultural hegemony and national exchanges of cultural hegemony is different. This article will re-interpret cultural hegemony of Gramsci, tap its important guiding significance for practice, the importance of cultural he-gemony in our thinking to explore the ideological construction.

  16. 输变电工程造价分析信息平台建设研究%Research on the Construction of Information Platform about Cost Analysis in Power Transmission and Transform Project

    Institute of Scientific and Technical Information of China (English)

    陈洪彦; 蒋文新; 郭晓丹

    2016-01-01

    随着电网投资规模的加大,相应的电网工程造价分析数据量也随之增大,工程造价分析数据管理水平对电网发展的影响愈发显著。本文基于大数据环境下输变电工程造价分析数据收集及分析现状,建立了数据覆盖面广、数据内容较为完善的输变电工程造价分析数据库,在造价分析信息平台建设的基础上,提出了建设全国输变电工程造价分析信息平台的构想,真正实现了信息的纵向贯通、横向共享,为优化电网工程建设方案,合理控制工程造价提供平台工具和决策参考。%〔Abstract〕 With the increase of investment scale of power grid , the corresponding cost analysis data of power grid project is also in-creasing . Therefore , the influence of the data management level of project cost analysis on the development of power grid is becoming in-creasingly significant . According to the current state of analytical cost data created by power transmission and transform project in the big data environment ,we established an analytical cost database whose content is relatively wide and perfect for power transmission and trans-form project . On the basis of the construction of information platform about cost analysis , we proposed a conception of constructing the na-tional information platform about cost analysis in power transmission and transform project , which really achieved the vertical and horizontal flow of information and provided platform tools and decision reference for the optimization of power grid's construction scheme and reasonable control of project cost .

  17. Three integrated photovoltaic/sound barrier power plants. Construction and operational experience; Drei integrierte PV-Schallschutz Versuchsfelder. Bau und Erprobung

    Energy Technology Data Exchange (ETDEWEB)

    Nordmann, T.; Froelich, A.; Clavadetscher, L.

    2002-07-01

    After an international ideas competition by TNC Switzerland and Germany in 1996, six companies where given the opportunity to construct a prototype of their newly developed integrated PV-sound barrier concepts. The main goal was to develop highly integrated concepts, allowing the reduction of PV sound barrier systems costs, as well as the demonstration of specific concepts for different noise situations. This project is strongly correlated with a German project. Three of the concepts of the competition are demonstrated along a highway near Munich, constructed in 1997. The three Swiss installations had to be constructed at different locations, reflecting three typical situations for sound barriers. The first Swiss installation was the world first Bi-facial PV-sound barrier. It was built on a highway bridge at Wallisellen-Aubrugg in 1997. The operational experience of the installation is positive. But due to the different efficiencies of the two cell sides, its specific yield lies somewhat behind a conventional PV installation. The second Swiss plant was finished in autumn 1998. The 'zig-zag' construction is situated along the railway line at Wallisellen in a densely inhabited area with some local shadowing. Its performance and its specific yield is comparatively low due to a combination of several reasons (geometry of the concept, inverter, high module temperature, local shadows). The third installation was constructed along the motor way A1 at Bruettisellen in 1999. Its vertical panels are equipped with amorphous modules. The report show, that the performance of the system is reasonable, but the mechanical construction has to be improved. A small trial field with cells directly laminated onto the steel panel, also installed at Bruettisellen, could be the key development for this concept. This final report includes the evaluation and comparison of the monitored data in the past 24 months of operation. (author)

  18. 浅析演播厅UPS电源与工艺接地的重要性%Discuss of the Importance to UPS Power Supply and Earthing for the Television Studio

    Institute of Scientific and Technical Information of China (English)

    夏济舟

    2015-01-01

    Studio is the main place of television production. And stable and reliable power supply system in the studio is necessary premise to ensure the smooth production of TV shows. It mainly refers to two aspects. The one is able to supply uninterruptible power supply to the audio, video, lighting equipment;And the second refers to that the design and construction process of earthing system is done according to the power distribution requirements to prevent the interference of harmonic and magnetic field on audio and video equipment.%演播厅作为电视节目制作的主要场所,其供电系统的稳定可靠是保障电视节目顺利制作的必要前提。稳定可靠包括两方面:其一是指能够供给音频、视频、灯光设备的不间断电源;其二是指接地系统的设计施工按照工艺配电要求,防止谐波、磁场等对音频、视频设备的干扰。

  19. A social work study using factor analysis on detecting important factors creating stress: A case study of hydro-power employees

    Directory of Open Access Journals (Sweden)

    Batoul Aminjafari

    2012-08-01

    Full Text Available The study performs an empirical study based on the implementation of factor analysis to detect different factors influencing people to have more stress in a hydropower unit located in city of Esfahan, Iran. The study performed the survey among all 81 people who were working for customer service section of this company and consisted of two parts, in the first part; we gather all private information such as age, gender, education, job experience, etc. through seven important questions. In the second part of the survey, there were 66 questions, which included all the relevant factors impacting employees' stress. Cronbach alpha was calculated as 0.946, which is well above the minimum acceptable level. The implementation of factor analysis has detected 16 important groups of factors and each factor is determined by an appropriate name. The results of our factor analysis show that among different factors, difficulty of working condition as well as work pressure are two most important factors increasing stress among employees.

  20. An aggregate model of grid-connected, large-scale, offshore wind farm for power stability investigations-importance of windmill mechanical system

    DEFF Research Database (Denmark)

    Akhmatov, Vladislav; Knudsen, H.

    2002-01-01

    An aggregate model of a large-scale offshore wind farm, comprising 72 wind turbines of 2 MW rating each, is set up. Representation of the shaft systems of the wind turbines shall be taken into account when a simplified aggregate model of the wind farm is used in voltage stability investigations. ...... and the entire network. All these phenomena are different compared to previous experiences with modelling of conventional power plants with synchronous generators and stiff shaft systems.......An aggregate model of a large-scale offshore wind farm, comprising 72 wind turbines of 2 MW rating each, is set up. Representation of the shaft systems of the wind turbines shall be taken into account when a simplified aggregate model of the wind farm is used in voltage stability investigations....... Because the shaft system gives a soft coupling between the rotating wind turbine and the induction generator, the large-scale wind farm cannot always be reduced to one-machine equivalent and use of multi-machine equivalents will be necessary for reaching accuracy of the investigation results...

  1. On the Importance of Strengthening Customer Credit Management in Power Company%浅谈供电公司加强客户信用管理的重要性

    Institute of Scientific and Technical Information of China (English)

    刘晓蕾

    2013-01-01

      随着电力市场化运作,供电公司客户的信用管理已成为企业管理的新课题。本文通过分析供电公司客户信用风险产生的原因及现状,剖析了加强客户信用管理对供电公司提高电费回收力度的重要性。为了有效的提高电费的回收力度,供电公司必须采取科学的客户信用管理机制,以规避资金风险。%  With the development of power market operation, credit management of power supply company customer has become a new topic in enterprise management. In this paper, through the analysis of the causes for power supply company customer credit risk and the current situation, the importance of enhancing customer credit management to recovery of the power company's electricity fees analyzes. In order to improve the recovery of electricity fees, power companies must take scientific customer credit management mechanism to avoid financial risks.

  2. Constructing Student Problems in Phylogenetic Tree Construction.

    Science.gov (United States)

    Brewer, Steven D.

    Evolution is often equated with natural selection and is taught from a primarily functional perspective while comparative and historical approaches, which are critical for developing an appreciation of the power of evolutionary theory, are often neglected. This report describes a study of expert problem-solving in phylogenetic tree construction.…

  3. Space Solar Power Program

    Energy Technology Data Exchange (ETDEWEB)

    Arif, H.; Barbosa, H.; Bardet, C.; Baroud, M.; Behar, A.; Berrier, K.; Berthe, P.; Bertrand, R.; Bibyk, I.; Bisson, J.; Bloch, L.; Bobadilla, G.; Bourque, D.; Bush, L.; Carandang, R.; Chiku, T.; Crosby, N.; De Seixas, M.; De Vries, J.; Doll, S.; Dufour, F.; Eckart, P.; Fahey, M.; Fenot, F.; Foeckersperger, S.; Fontaine, J.E.; Fowler, R.; Frey, H.; Fujio, H.; Gasa, J.M.; Gleave, J.; Godoe, J.; Green, I.; Haeberli, R.; Hanada, T.; Ha

    1992-08-01

    Information pertaining to the Space Solar Power Program is presented on energy analysis; markets; overall development plan; organizational plan; environmental and safety issues; power systems; space transportation; space manufacturing, construction, operations; design examples; and finance.

  4. Pedagogical Systems and the Construction of the Primary School Teacher in the Teachers' Training Institution (Didaskalio) in Greece (1830-1933): Issues of Power and Governmentality

    Science.gov (United States)

    Nikolakaki, Maria

    2013-01-01

    This article investigates the governmentality in the pedagogical systems through the teachers' mission and the corresponding teachers' education in Greece from the construction of the nation/state and for about a century, according to the socio-economical conditions that emerged. It does so in order to analyse the relation of society, the…

  5. Constructed Wetlands

    Science.gov (United States)

    these systems can improve water quality, engineers and scientists construct systems that replicate the functions of natural wetlands. Constructed wetlands are treatment systems that use natural processes

  6. 护理团队建设对提升护理管理品质的重要性分析%Analysis on the Importance of Nursing Team Construction to Improve Nursing Management Quality

    Institute of Scientific and Technical Information of China (English)

    李夏

    2015-01-01

    Objective To investigate the nursing team construction to improve the importance of nursing management quality.Methods To create related activities in the process of nursing management, the team building and brand to create work effective integration, ifnally through the effective determining target to perfect the organization and to put forward the relevant requirements as well as to complete the management of explicit specification series of effective measures.ResultsThrough effective efforts, the importance of nursing management construction gained full attention. All the quality of nursing staff obtain effective improving in the process of related work and nursing staff can effectively improve the working sense of responsibility which improves patient’s satisfaction. ConclusionTo effectively strengthen the team building, will be the target of hospital nursing staff to work effectively transformed and nursing staffs in a conscious behavior as the work center will eventually improve level of nursing service and ultimately achieving scientific management will effectively improve nursing management quality.%目的探讨护理团队建设针对提高护理管理品质表现出的重要性。方法创建相关活动,在进行护理管理过程中,将团队建设以及品牌创建工作有效融入,最终通过有效确定目标,对组织进行完善,提出有关要求以及对管理进行明确规范等系列措施有效完成。结果通过有效努力后,护理管理建设的重要性获得了充分重视。所有护理人员的自身素质获得了有效的提高,在进行相关工作过程中,能够有效提高工作责任感,最终显著提高了患者的满意度。结论针对团队建设进行有效加强,将护理人员与医院的工作目标进行有效转化,以护理人员自觉行为作为工作中心,最终将护理服务水平有效提高,最终实现科学管理,将护理管理品质有效提高。

  7. 含间歇性电源的电力系统动态有功优化调度的思路构建%Power System Containing Intermittent Power Supply Construction Dynamic Optimization Scheduling of Active Thinking

    Institute of Scientific and Technical Information of China (English)

    车轮

    2014-01-01

    近年来,随着风电场和光伏电站的大量并网,对电力系统的运行造成了一定影响。在电力系统中,可将风电场和光伏电站等作为间歇性电源。为了实现间歇性电源在电力系统内部的合理消纳,有必要制订合理、可行的调度策略,这样不仅可以提高间歇性电源本身的调节能力,还能提高电力系统运行的安全性和经济性。基于此,就含间歇性电源的电力系统动态有功优化调度思路的构建展开研究。%In recent years, with wind farms and solar power plants and a large network of operation of power systems caused some impact. In the power system can be such as wind farms and solar power plants, as intermittent power supply. In order to achieve intermittent electricity supply at a reasonable consumptive internal system, it is necessary to establish a reasonable and feasible scheduling policy, so not only can improve the intermittent ability to regulate its own power supply, but also improve the operation of the power system security and economy. Based on this, the intermittent power supply systems with active optimization of dynamic scheduling idea to build a study.

  8. Monitoring and Pre-warning Technology of Important Devices of Nuclear Power Plant%核电厂重要设备的监视与预警技术

    Institute of Scientific and Technical Information of China (English)

    顾海霞; 王婷; 刘高俊; 谭珂

    2014-01-01

    针对核电厂运行过程中出现的重要设备的异常变化,利用数据挖掘技术,建立重要设备的动态规则库,在核电厂实时信息监控系统的实时数据和历史数据基础上,分析核电厂重要设备的变化趋势和规律,对重要设备的异常情况进行实时在线监视和预警。为操纵员提供判断依据,降低核事故发生的几率,从而有效地提高了核电厂运行的安全性。%Aiming to find out abnormal changes of important devices in nuclear power plant operation process ,combined with data mining technology ,dynamic regular library of important devices was set up .Based on the real‐time data and the history data of real‐time information monitoring system in nuclear power plant , trend and regularity of important devices of nuclear power plant were obtained and analyzed ,so the important devices can be monitored and pre‐warn online .The basis can be provided for the opera‐tors ,so the probability of nuclear accidents would be reduced and the safety of operation for nuclear power plant can be effectively improved .

  9. Nuclear Power Industry of China Enters a New Stage of Development

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    This article describes the basic conditions of nuclear power plants or projects in China, which have been built up, or under construction, or approved by the State Council. Excellent operating indexes of the existing nuclear power plants and the capability of independent design, manufacture, construction and operation are briefly enumerated.There are over thirty nuclear power plant sites in the coastal and inland areas, which have been checked or preevaluated. This proves that a solid foundation for large-scaled development of nuclear power industry has been laid and nuclear power will certainly play an important role in power supply and environment protection of China.

  10. 基于大数据平台的电力营销信息化建设分析%Informatization Construction of Power Marketing Based on Big Data Platform

    Institute of Scientific and Technical Information of China (English)

    王志坚

    2016-01-01

    Traditional power marketing is lack of deep analysis, mining capacity of data correlation analysis. To solve these problems the author proposes informatization construction of power marketing programme based on big data platform. Based on the huge data of power marketing system, making full use of the huge amount of power data in power marketing system to predict business trends and generate strategy, optimize the marketing and service mode targetedly. The informatization of power marketing of contains the comprehensive service system based on big data platform, the informatization of power marketing based on mobile internet and the technical architecture of big data platform. Informatization construction of power marketing based on the big data platform will enhance the capacity of data mining and analysis in marketing, and improve the ability and the quality of marketing service.%针对传统电力营销存在的电力数据深度分析和发掘能力不足、未涉及数据关联分析等问题,提出了基于大数据平台的营销信息化建设规划。以电力营销系统的海量电力数据为依据,充分挖掘电力数据中有价值的信息,实现业务趋势预测、营销策略制订等,在此基础上有针对性地优化营销方式,改善服务模式。营销信息化包括基于大数据平台的全方位服务体系、基于移动互联网的智能营销服务和大数据平台的技术架构。基于大数据平台的营销信息化建设将增强营销相关领域的数据分析和数据挖掘能力,从而提高营销业务的服务能力和服务质量。

  11. Design, Construction and Operation of a Low-Power, Autonomous Radio-Frequency Data-Acquisition Station for the TARA Experiment

    CERN Document Server

    Kunwar, S; Allen, C; Belz, J; Besson, D; Byrne, M; Farhang-Boroujeny, B; Gillman, W H; Hanlon, W; Hanson, J; Myers, I; Novikov, A; Prohira, S; Ratzlaff, K; Rezazadeh, A; Sanivarapu, V; Schurig, D; Shustov, A; Smirnova, M; Takai, H; Thomson, G B; Young, R

    2015-01-01

    Employing a 40-kW radio-frequency transmitter just west of Delta, UT, and operating at 54.1 MHz, the TARA (Telescope Array RAdar) experiment seeks radar detection of extensive air showers (EAS) initiated by ultra-high energy cosmic rays (UHECR). For UHECR with energies in excess of $10^{19}$ eV, the Doppler-shifted "chirps" resulting from EAS shower core radar reflections should be observable above background (dominantly galactic) at distances of tens of km from the TARA transmitter. In order to stereoscopically reconstruct cosmic ray chirps, two remote, autonomous self-powered receiver stations have been deployed. Each remote station (RS) combines both low power consumption as well as low cost. Triggering logic, the powering and communication systems, and some specific details of hardware components are discussed.

  12. Power Electronics

    DEFF Research Database (Denmark)

    Iov, Florin; Ciobotaru, Mihai; Blaabjerg, Frede

    2008-01-01

    is to change the electrical power production sources from the conventional, fossil (and short term) based energy sources to renewable energy resources. The other is to use high efficient power electronics in power generation, power transmission/distribution and end-user application. This paper discuss the most...... emerging renewable energy sources, wind energy, which by means of power electronics are changing from being a minor energy source to be acting as an important power source in the energy system. Power electronics is the enabling technology and the presentation will cover the development in wind turbine...... technology from kW to MW, discuss which power electronic solutions are most feasible and used today....

  13. Analysis of flashing and swelling phenomena in tanks of nuclear power plants; the importance of bubble growth dynamics and bubble transport models with size tracking

    Energy Technology Data Exchange (ETDEWEB)

    Cerezo A, E. [University of Caribe, Department of Basics Sciences and Engineering, Lote 1, Manzana 1, Region 78, esq. Fracc. Tabachines, 77500 Cancun, Quintana Roo (Mexico)]. E-mail: ecerezo@unicaribe.edu.mx; Munoz C, J.L. [Department of Chemical and Nuclear Engineering, Polytechnic University of Valencia, Camino de Vera 14, 46022 Valencia (Spain)

    2004-07-01

    This paper presents a non-equilibrium model to describe flashing phenomena in tanks and cooling pools. The present model is based on Watanabe's work that we have extended by developing a realistic model for the growth of bubbles. We have made the corresponding venting model, continuity equation, gas and liquid phase energy conservation equations for the model. This model takes into account both drag and virtual mass force. The dynamics of bubble growth plays an important role in two-phase phenomena such as flashing. In our model the growth rate is assumed to be limited by the heat conduction in the liquid. The results of the analytic model were compared with the experimental data of Watanabe [1]. The results have shown that the present model evaluates fairly accurately the pressure evolution, the void fraction and the swelling level of a tank.

  14. Validating MEDIQUAL Constructs

    Science.gov (United States)

    Lee, Sang-Gun; Min, Jae H.

    In this paper, we validate MEDIQUAL constructs through the different media users in help desk service. In previous research, only two end-users' constructs were used: assurance and responsiveness. In this paper, we extend MEDIQUAL constructs to include reliability, empathy, assurance, tangibles, and responsiveness, which are based on the SERVQUAL theory. The results suggest that: 1) five MEDIQUAL constructs are validated through the factor analysis. That is, importance of the constructs have relatively high correlations between measures of the same construct using different methods and low correlations between measures of the constructs that are expected to differ; and 2) five MEDIQUAL constructs are statistically significant on media users' satisfaction in help desk service by regression analysis.

  15. 供电营业网点建设现状分析及建议%Analysis on the Current Situation of Power Supply Outlets Construction and Its Suggestions

    Institute of Scientific and Technical Information of China (English)

    杜雅飞

    2015-01-01

    本文通过深入研究"大营销"体系建成以来营业网点在管理标准、网点布局、软硬件设施及人员配备等方面存在的问题,按照"大营销"体系建设中"城乡一体化"的发展要求,结合近年来"城市十分钟缴费圈"、"农村村村布点"等多元化缴费渠道和代收网点的建设标准,给供电营业网点建设提出参考建议.%In this paper, through the deep research of the existing problems in management standard, site layout, hardware and software facilities, staffing accouterment and other aspects of the business outlets after the "big marketing" system construction, according to the development requirements of "urban-rural integration" in the "big marketing" system construction, combined with the construction standard of "ten-minute capture expends circle of cities", "outlets in every village" and other diversified payment channels and outlets, the suggestions of power supply outlets construction are put forward.

  16. Comprehensive evaluation research of safety and healthy environ ment for Power construction based on fuzzy math%基于模糊数学的电力建设安全健康环境综合评价探究

    Institute of Scientific and Technical Information of China (English)

    刘青宜

    2014-01-01

    建立了基于模糊数学的电力建设安全健康环境综合评价系统,并以输变电工程为例构建了模糊综合评判模型,并验证了体系的有效性,为我国电力建设安全健康环境评价提供参考。%This paper establishes a comprehensive evaluation system of safety and healthy environment for P ower construction based on fuzzy math,and builds a fuzzy comprehensive evaluation model by taking transmiss ion and transformation project as an example and verifies the effectiveness of the system;it provides refer ence to safe and healthy environment evaluation for China's power construction.

  17. 高度重视临床研究伦理平台建设,大力推进我国CAP评估%Attach Great Importance to Clinical Research Ethics Platform Construction, and Vigorously Promote China CAP Assessment

    Institute of Scientific and Technical Information of China (English)

    白桦; 王思成; 熊宁宁; 张金钟; 张忠元; 徐春波

    2013-01-01

    2012年9月国家中医药管理局正式委托世界中医药学会联合会组织开展“中医药临床研究伦理审查平台评估”(CAP)。通过对已完成评估的20家医疗卫生机构的伦理审查平台情况进行综合分析,结合当前美国的伦理监管体系,论述我国自主评估品牌CAP的重要特点,“以评促建”和“持续改进”的实践与受益,以及大力推进CAP评估的重要意义。%In September 2012, the "Assessment for Ethics Review of Traditional Chinese Medicine (TCM) Re-search with Human Participants" (named CAP, Chinese medicine assessment human research protection system) was officially commissioned to the World Federation of Chinese Medicine Societies to organize by the State Ad-ministration of TCM. Through the assessment of 20 medical institutions, a comprehensive analysis on ethical re-view platform was conducted. Combined with current regulatory system of ethics in the U.S., this article discussed independent assessment on important CAP features of local brands, the practice and benefit of "construction pro-motion based on assessment" and "continuous improvement," as well as the importance of vigorously promote CAP assessment .

  18. Importance of Macrophyte Quality in Determining Life-History Traits of the Apple Snails Pomacea canaliculata: Implications for Bottom-Up Management of an Invasive Herbivorous Pest in Constructed Wetlands

    National Research Council Canada - National Science Library

    Yam, Rita S W; Fan, Yen-Tzu; Wang, Tzu-Ting

    2016-01-01

    Pomacea canaliculata (Ampullariidae) has extensively invaded most Asian constructed wetlands and its massive herbivory of macrophytes has become a major cause of ecosystem dysfunctioning of these restored habitats...

  19. EVM法用于电网施工项目造价动态管理实证%EVM Method for Dynamic Cost Management in Power Grid Construction Project

    Institute of Scientific and Technical Information of China (English)

    范伟捷; 黄志伟

    2011-01-01

    Earned Value Management, which is more widely used in international project management, is an effective method of project progresscost joint management. However, it had not been better in practice application in China power grid construction project. So combining the actual situation of power grid construction projects, this paper gives an empirical study to the application of this method in power grid construction projects, on the base of describing the basic principles of earned value method, the dynamic management model for project cost, the methods of calculating the parameters of project cost management and the dynamic analysis of the deviation and cost.%挣值管理法(Eamed Value Management)是国际上项目管理实践中得到较广泛应用的一种项目进度-费用联合管理的有效方法,然而目前我国电网建设项目施工实践中却没有得到较好地应用.为此,本文在介绍挣得值法的基本原理,工程造价动态管理模型及工程造价管理的参数的计算方法,偏差和成本的动态分析基础上,结合电网施工项目实际,对该方法在电网工程项目管理中的应用进行了实证.

  20. 分析P3项目管理软件在火电工程施工中的应用%Analysis of the Application of P3 Project Management Software in the Construction of Thermal Power

    Institute of Scientific and Technical Information of China (English)

    郝天金

    2013-01-01

    The traditional thermal power project management level and management mode can not meet the needs of modern thermal power project construction, and project management software P3 based on network technology has been a qualitative leap to project construction management. Using P3 project management software can prepare and control construction schedule to ensure the quality of the project; using P3 project management software can achieve the dynamic management and information management of the project, improve the science and rationality of engineering management, and promote the improvement of project management personnel level, indicating that the P3 management software has higher social benefits for the management of the thermal power projects.%  传统的火电工程项目管理水平和管理模式已不能适应现代化火电工程建设的需要,基于网络技术的工程管理软件P3对工程项目施工管理有了质的飞跃。利用P3项目管理软件可以编制施工进度计划并对进度计划进行控制,既方便了管理,又保证了工程质量及进度;利用P3项目管理软件,实现了工程管理的动态化管理、信息化管理,提高了工程管理的科学性和合理性,促进了项目管理人员管理水平的提高,表明利用P3管理软件进行火电工程项目的管理具有较高社会效益。

  1. A self-made small hydropower plant. An instruction to construct a Pico-power plant; Ein kleines Wasserkraftwerk selbst gebaut. Anleitung zum Bau eines Pico-Kraftwerks

    Energy Technology Data Exchange (ETDEWEB)

    Maurer, P.

    2006-07-01

    Instruction for hydropower freaks: from hydrology and environment to components and electronical equipment, from turbines to flow rate and power generation, from operation to maintenance, from water rights to licensing and feedback into the grids, all this topics are presented in a simple manner but the complete intention shouldn't be done without specialists. (GL)

  2. The design, construction, and monitoring of photovoltaic power system and solar thermal system on the Georgia Institute of Technology Aquatic Center. Volume 1

    Energy Technology Data Exchange (ETDEWEB)

    Long, R.C.

    1996-12-31

    This is a report on the feasibility study, design, and construction of a PV and solar thermal system for the Georgia Tech Aquatic Center. The topics of the report include a discussion of site selection and system selection, funding, design alternatives, PV module selection, final design, and project costs. Included are appendices describing the solar thermal system, the SAC entrance canopy PV mockup, and the PV feasibility study.

  3. 传媒转型时期管理文化软实力构建%Construction of Management Culture Soft Power in Media Transition Period

    Institute of Scientific and Technical Information of China (English)

    文崇坚; 帅锦平

    2012-01-01

    向管理要效益是市场经济的使然.管理的本质就是一种文化现象.管理文化是一种强大的软实力.只有构建和谐的管理文化的柜架,做到“管”与“理”的有机搭配,管理才会产生它本质上的意义,推进企业健康发展.西方文明是中国传媒文化需要吸收的精华所在,源远流长的中华文化给传媒文化以厚实的根基.传媒管理文化的形成具有自己的模式,构建卓越的传媒文化需要全方位探索.企业文化实质就是企业家的文化,传媒领袖人物个人魅力至关重要.强化传媒企业的社会责任,是其外在形象之所在.塑造传媒人为新闻事业的献身精神,是其内在依托.注重跨国文化沟通,是全球经济一体化的必然选择.打造传媒品牌,是传播管理文化的灵魂.文化是柄双刃剑.中国传媒业应当大力发挥传播管理文化的积极功能,克服其消极功能.只有这样,才能彰显传媒管理文化绚丽的光华.传媒管理文化软实力如何构建,当下传媒学界颇有研究的必要.%Media-cultural management and cultural studies is to enhance the country's cultural soft power is an important topic. Media is a product of culture, the essence of management is a cultural phenomenon. Western civilization is the Chinese media need to absorb the essence of culture, the heritage of Chinese culture to media culture with thick roots. The formation of the media management culture has its own pattern, and cultural needs of the media to build outstanding all-round exploration. Essence of corporate culture and cultural entrepreneurs, media leaders charisma is essential. Strengthen the social responsibility of media companies, is the external image of lies. News media to shape human dedication to the cause, is its inherent support. Focus on cross-cultural communication, global economic integration is an inevitable choice. Create a media brand, is to spread the management culture of the soul. Culture is

  4. 综合作战实力建设优化模型研究%Research on the Optimization Model of Integrated Combat Power Construction

    Institute of Scientific and Technical Information of China (English)

    严建钢; 杨士锋; 陈钰宁

    2014-01-01

    本文根据战争(战斗)的风险与收益共存准则、作战理论以及现代资产投资组合理论( Portfolio理论),提出了综合作战实力建设优化的概念,并建立了综合作战实力建设优化模型,解决了在有限的资源情况下进行战争(战斗)各种力量建设的最优投资比例,使有限的资源发挥最大的效益。%In this paper , according to the principle of the war ( combat ) benefits and risks that coexist , operational theory and modern assets portfolio theory ( portfolio theory ) , we put forward the war ( combat ) force construction optimization concept , and the establishment of a war ( combat ) force construction optimization model , solve the limited resources in optimal investment proportion of various wars (combat)construction,and make limited natural resources produce the biggest beneficial result .

  5. Structural engineering developments in power plant cooling tower construction. 100 years of natural draught cooling towers - from tower cooler to cooling tower. Bautechnische Entwicklungen im Kraftwerkskuehlturmbau. 100 Jahre Naturzugkuehltuerme - vom Kaminkuehler zum Kuehlkamin

    Energy Technology Data Exchange (ETDEWEB)

    Damjakob, H.; Depe, T.; Vrangos, V. (Balcke-Duerr AG, Ratingen (Germany))

    1992-06-01

    Almost exactly 100 years ago, tower-type structures were first used for the production of artificial ventilation for cooling purposes. The shell of these so-called tower coolers, today known as 'natural draught cooling towers', was, from the outset, the subject of multiple structural engineering develepments in respect of design, material, construction and statistical calculation. These developments have been stimulated especially by the spasmodic increase in dimensions in the application of power plant cooling towers and, more recently, in connection with ecological requirements. (orig.).

  6. Enhancement of Second-Harmonic Power Due to Self-Construction of an Anti-Guide Structure in a Thin-Film Waveguide of a Nonlinear-Optical Photoconducting Polymer

    Science.gov (United States)

    Sassa, Takafumi; Umegaki, Shinsuke

    1998-04-01

    A theoretical analysis, to explain the increase of the Cerenkov-radiation-type second-harmonic power with time in a thin-film waveguide of a nonlinear-optical photoconducting polymer, is given. An anti-guide structure, which confines both a fundamental wave and its second-harmonic wave, is gradually constructed by reorientation of the nonlinear-optical chromophores within the fundamental beam width in the thin-film polymer. The space-charge field formed by the initially weak second-harmonic wave itself causes the reorientation.

  7. Construction management

    CERN Document Server

    Pellicer, Eugenio; Teixeira, José C; Moura, Helder P; Catalá, Joaquín

    2014-01-01

    The management of construction projects is a wide ranging and challenging discipline in an increasingly international industry, facing continual challenges and demands for improvements in safety, in quality and cost control, and in the avoidance of contractual disputes. Construction Management grew out of a Leonardo da Vinci project to develop a series of Common Learning Outcomes for European Managers in Construction. Financed by the European Union, the project aimed to develop a library of basic materials for developing construction management skills for use in a pan-European context. Focused exclusively on the management of the construction phase of a building project from the contractor's point of view, Construction Management covers the complete range of topics of which mastery is required by the construction management professional for the effective delivery of new construction projects. With the continued internationalisation of the construction industry, Construction Management will be required rea...

  8. 提升浙江省企业和高校在国家核电建设中的作用%On Enhancement of Role of Enterprises and Universities in Zhejiang Province in National Nuclear Power Construction

    Institute of Scientific and Technical Information of China (English)

    章利特; 施红辉; 贾会霞; 王丽丽; 杨咏梅

    2013-01-01

    Considering the requirement of sustainable development and the responsibility of world climate change, China has established a nuclear power construction plan for the next ten years costing over 100 billion Yuan, which makes Zhejiang Province which is lacking in energy resources and developed in manufacture face great business opportunities of nuclear power industry and upgrading and transformation opportunities. Zhejiang nuclear power enterprises need to give full play to the function of policy orientation of the government and guidance and coordination of nuclear power industry association, extends the technical qualification of nuclear power construction by adding R& D input and promoting resources integration, master independent core technologies and improve the overall actual strength and core competitiveness of nuclear power enterprises. Zhejiang Province can establish nuclear engineering college and department and set up majors related to nuclear electricity generation in 1 or 2 provincial universities, and provide talent and intelligence guarantee for the development of its nuclear power industry through professional talent cultivation. technical upgrading R&D and technical service support.%鉴于自身可持续发展的需要和对世界气候变化的责任,中国制订了未来10年超过千亿元的核电建设计划,使能源缺乏、制造业发达的浙江省面临核电产业的巨大商机和升级转型契机.浙江省核电企业需要充分发挥政府的政策导向和核能行业协会的牵引协调作用,通过增加研发投入、促进资源整合,拓展核电建设制造的技术资格,掌握自主的核心技术,提升核电企业整体实力与核心竞争力.浙江省可以在1~2所省属高校建立核能工程院、系,开设核能发电相关专业,通过专业人才培养、技术升级研发、技术服务支持等方式为浙江省核电产业的发展提供人才和智力保障.

  9. 电力施工企业工程管理系统的建设与应用%Construction and Application of Project Management System of Power Construction Enterprise

    Institute of Scientific and Technical Information of China (English)

    张宇峰; 魏庆科

    2014-01-01

    It plays a key role in realizing the modernization in enterprise to informationize the engineering management system .With the development of computer technique , network technique , information sys-tem project management technique and the promotion of professional knowledge and computer application level of employees , it provides the necessary condition for the implementation and application of the infor-matization.The paper introduces the concepts and features of project management , especially enterprise engineering project management .It introduces the significance and prerequisite of the current engineering project management informatization , and elaborates how to carry out the informatization construction of the engineering management system in an enterprise .According to the practical condition , the approach and way are proposed to carry out the engineering management system construction combined with the enter -prise reality in a planed way and step by step , adjusting measures to local conditions .%工程管理系统的信息化建设是实现企业现代化的重要手段。目前随着计算机技术、网络技术和信息系统项目管理技术的发展及从业人员专业知识与计算机应用水平的提高,为信息化实施和应用提供了必要条件。文章介绍了项目管理特别是企业工程项目管理的概念和特点,介绍了当前工程项目管理信息化的意义和先决条件,详细阐述了在一个企业中如何进行工程管理系统的信息化建设。针对企业的实际情况,提出结合企业具体实际,因地制宜,有计划、分步骤地实施工程管理系统建设的途径和方法。

  10. Design and construction of bench about photovoltaic power generation system%光伏发电系统实验台设计与搭建

    Institute of Scientific and Technical Information of China (English)

    阎娜

    2012-01-01

    基于光伏效应,设计并搭建了离网型及并网型光伏发电实验系统,测试太阳能的利用效率.%Based on the photovoltaic effect, the off-grid and on-grid photovoltaic power generation experimental system is designed and set up, which can test the efficiency of the use of solar energy.

  11. Conducting water chemistry of the secondary coolant circuit of VVER-based nuclear power plant units constructed without using copper containing alloys

    Science.gov (United States)

    Tyapkov, V. F.

    2014-07-01

    The secondary coolant circuit water chemistry with metering amines began to be put in use in Russia in 2005, and all nuclear power plant units equipped with VVER-1000 reactors have been shifted to operate with this water chemistry for the past seven years. Owing to the use of water chemistry with metering amines, the amount of products from corrosion of structural materials entering into the volume of steam generators has been reduced, and the flow-accelerated corrosion rate of pipelines and equipment has been slowed down. The article presents data on conducting water chemistry in nuclear power plant units with VVER-1000 reactors for the secondary coolant system equipment made without using copper-containing alloys. Statistical data are presented on conducting ammonia-morpholine and ammonia-ethanolamine water chemistries in new-generation operating power units with VVER-1000 reactors with an increased level of pH. The values of cooling water leaks in turbine condensers the tube system of which is made of stainless steel or titanium alloy are given.

  12. Small scale power production

    Energy Technology Data Exchange (ETDEWEB)

    Muoniovaara, M. [IVO International Ltd, Vantaa (Finland)

    1996-12-31

    IVO International is a major constructor of biomass power plants in Finland and abroad. As a subsidiary of Imatran Voima Oy, the largest power utility in Finland, it has designed and constructed ten power plants owned by IVO Group or others capable of burning biomasses. Sizes of the plants vary from the world`s largest condensing peat-fired power plant of 155 MWe to a 6 MWe combined heat and power producing unit. This article describes the biomass power plants designed and constructed by IVO Group 3 refs.

  13. The Protocol of China's Entrance into WTO is Producing an Influence on the Import-Export Businesses of Power Enterprises%加入WTO议定书对电力企业进出口业务的影响

    Institute of Scientific and Technical Information of China (English)

    张玉新; 舒悌荣; 王绍谦; 张旭波; 张健

    2003-01-01

    从法律法规、贸易权、国民待遇、招投标程序、非关税措施、技术法规和标准及出口补贴等七方面,分析中国加入WTO议定书对电力企业进出口业务的影响.电力企业必须熟悉和掌握WTO规则和议定书,才能不断扩大国内外贸易市场.%This paper analyzes the influences of the Protocol of China's Accession to WTO on import and export services of power enterprises in the aspects of laws and regulations, trade rights, national treatment, bidding procedure, non-tariff measures, technical codes and standards and export subsidies. Power enterprises must know and master the WTO rules and protocol to continuously enlarge home and foreign markets.

  14. Environmental Issues in Construction of Inland Nuclear Power Plants in China%内陆核电建设的主要环境问题解析

    Institute of Scientific and Technical Information of China (English)

    刘永叶; 刘森林

    2011-01-01

    Based on the comparison of radioactive effluent discharge limits between the coastal and inland sites in the countries (the United States, France, Germany and Spain, etc.) for their two types of nuclear power plants, some suggestions were made for discharge control limits of radioactive effluents from inland power plants in China. Natural hydrological conditions of inland sites using completely once-through cooling method were surveyed and analyzed, through investigation on cooling methods of inland nuclear power plants in the four mentioned countries. And then, the initial proposals on choosing cooling method were made through comparison made based on hydrological conditions between the statistic data and the first domestic inland sites. Finally, with account being taken of management practices of liquid effluents in domestic coastal nuclear power plants, the main environmental issues on waste water management and development of domestic inland nuclear power plant were analyzed, with some relevant suggestions made in this paper.%通过对同时拥有滨海和内陆核电厂的国家(美国、法国、德国和西班牙等)关于这两类厂址的放射性流出物排放管理限值的对比,对我国内陆核电站放射性流出物的排放限值的制定提出了相应的建议。然后对这几个国家的内陆核电厂冷却方式进行分类统计,调查、分析了采用完全一次直流冷却方式的内陆厂址的自然水文条件,将其与国内主要的河流和湖泊等内陆水体水文条件进行比较,并针对我国首批内陆厂址的水文条件,提出冷却方式选择的初步建议。最后,对我国内陆核电建设的主要环境问题(放射性污染问题、热污染问题和废水管理中的其他问题)进行分析,并提出相关的建议。

  15. Saurians vs. cuts on reimbursement rates. In the vicinity of Berlin, plans for construction of a solar power plant almost failed because of conservation concerns; Echsen versus Verguetungskuerzung. In der Naehe von Berlin waere der Bau eines Solarkraftwerks beinahe am Naturschutz gescheitert

    Energy Technology Data Exchange (ETDEWEB)

    Krause, Matthias B.

    2010-09-15

    Abandoned industrial or military sites and similar terrains are preferred sites for solar power plant construction. This is a good thing, in principle, as any land pollution will be removed at the same time. However, if construction projects go too fast they may interfere with conservation concerns. The contribution presents the case of the 24 MW 'Finowtower' solar power station. The project almost had to be abandoned because of a small lizard. (orig.)

  16. Language, Power and Identity

    Science.gov (United States)

    Wodak, Ruth

    2012-01-01

    How are identities constructed in discourse? How are national and European identities tied to language and communication? And what role does power have--power in discourse, over discourse and of discourse? This paper seeks to identify and analyse processes of identity construction within Europe and at its boundaries, particularly the diversity of…

  17. Wind Power - A Power Source Enabled by Power Electronics

    DEFF Research Database (Denmark)

    Blaabjerg, Frede; Chen, Zhe

    2004-01-01

    . The deregulation of energy has lowered the investment in bigger power plants, which means the need for new electrical power sources may be very high in the near future. Two major technologies will play important roles to solve the future problems. One is to change the electrical power production sources from...... electronics is changing from being a minor energy source to be acting as an important power source. By that wind power is also getting an added value....

  18. 转型时期人民当家作主主体自觉性缺失与构建探讨%The Absence and Construction of the Subjective Consciousness of People Being in Power in the Transition Period

    Institute of Scientific and Technical Information of China (English)

    董树; 张雪晴

    2014-01-01

    党的十八大强调夺取中国特色社会主义新胜利,必须坚持人民主体地位。笔者分析了我国转型时期主体自觉性缺失对人民当家作主的制约,提出了通过健全各项民主制度扩大人民当家作主的群众基础、加强法制宣传教育以增强人民依法维权自觉性、建设社会主义核心价值体系提供精神动力和思想保证等措施来构建人民当家作主的主体自觉性。%The Third Plenary Session of the Eighteen Party's Congress has stressed that if we want to seize the new victory of China's characteristic socialism, we must maintain the people's principal position. The author analyzes the constraints of the lack of China's body consciousness of people being in power in the transition, proposing that the subjective consciousness can be constructed by improving the democratic system, enlarging the masses base of people being in power, strengthening the legal publicity and education to enhance the people's law consciousness, constructing the socialist core value system to provide spiritual impetus and ideological guarantee and other measures.

  19. Design and Construction of EMC Lab for Power System%电力系统电磁兼容实验室设计与建设

    Institute of Scientific and Technical Information of China (English)

    张文亮; 陆家榆; 赵鹏; 赵明敏; 杨志超; 李学津; 黄幼松

    2013-01-01

    Technical features of the electromagnetic compatibility (EMC) lab newly-built in Beijing UHVDC base is introduced. Considering such properties of power sector as large size, high-voltage and high-power, through the design of technical characteristics and test ability of test site the optimized configuration and integration of test equipments and test system are performed. A 10m semi-anechoic chamber (SAC), and then a 3m fully anechoic chamber (FAC) and five test chambers are built. In the newly-built EMC lab all routine tests in the fields of electromagnetic conduction interference, radiation interference and electromagnetic immunity can be carried out. The newly-built EMC lab is of international advanced level and can meet the demand of power sector and EMC standard home and abroad.%  介绍了新建于北京特高压直流试验基地电磁兼容实验室的技术特性。结合电力行业大尺寸、高电压、大功率的特点,通过对测试场地技术特性和试验能力的设计与建设,对测试设备和测试系统的优化配置与集成,新建成1座10 m法半电波暗室、1座3 m法全电波暗室和5间屏蔽室。新建实验室可以进行电磁传导干扰、辐射干扰和电磁抗扰度的全部常规试验。新建实验室达到国际先进水平,能够满足电力行业、国内和国际电磁兼容标准与要求。

  20. Pseudorandomness and Combinatorial Constructions

    OpenAIRE

    2006-01-01

    In combinatorics, the probabilistic method is a very powerful tool to prove the existence of combinatorial objects with interesting and useful properties. Explicit constructions of objects with such properties are often very difficult, or unknown. In computer science, probabilistic algorithms are sometimes simpler and more efficient than the best known deterministic algorithms for the same problem. Despite this evidence for the power of random choices, the computational theory of pseudorandom...

  1. Contribution of UHV Grid to United National Power Market

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    Power market construction is an important part of the marketization reform in China's electric power industry and an essential part of the economic system reform in China. With the social and economic development, the contradiction between distribution of energy resources and development of regional economies gets increasingly noticeable, and a united national power market is consequentially required to optimize the allocation of energy resources over the whole country. Analyses indicate that the developmen...

  2. Construction and operation of the flue gas desulphurization plant at Altbach/Deizisau power station, unit no. 5. Experience from commissioning and initial operating period

    Energy Technology Data Exchange (ETDEWEB)

    Maier, R.; Necker, P.; Strauss, J.; Hemming, H.; Landgraf, E.

    1987-04-01

    Since take-over the flue gas desulphurization plant has easily maintained the required level of desulphurisation. Caking-on and incrustation are substantially avoided. By redesigning the gypsum drying process an easily storable gypsum which can be used both in the gypsum and cement industry is produced. According to experience gained to date it is expected that the flue gas desulphurisation plant will not impair the availability of the power plant unit taking into account statutory regulations. In overall terms the plant has satisfactorily fulfilled the expectations of the operator.

  3. 基于技能鉴定驱动的电力行业培训考评系统建设研究%Study on the Construction of Power Industry Training Evaluation System Based on the Driving of Skill Verification

    Institute of Scientific and Technical Information of China (English)

    张明; 袁泉; 刘晔

    2015-01-01

    Vocational skill verification of the power industry is an important starting point for the construction of electricity skilled personnel, and it has been played an irreplaceable role in guiding vocational training and ensuring personnel training. On the basis of describing the need of vocational skill verification in the power industry, this paper proposed the idea that the training evaluation system construction of power industry by the driving of skill verification. The system took "the power industry test center" platform as the base, unified the registration management process, solved the problem of evaluation process complicatedly and incapably reuse; at the same time, providing a more flexible evaluation mechanism in a variety of complex assessment environment. The study is expected to provide a reference for the work of power industry training evaluation, and promote the further development of the power industry training evaluation.%电力行业职业技能鉴定是电力技能人才队伍建设的一个重要抓手,在引导职业培训、保证人才培养等方面发挥着不可替代的作用。本文在阐述电力行业职业技能鉴定需求的基础上,提出了基于技能鉴定驱动的电力行业培训考评系统建设的思路。该系统在“电力行业考试中心”平台的基础上,统一了报名管理流程,解决了考评过程繁琐、无法重用的问题;同时,提供了一个在各种复杂评定环境下更灵活的考评机制。本研究有望为电力行业培训考评工作提供一定的参考和借鉴,并促进电力行业培训考评工作的进一步发展。

  4. Usability Constructs

    DEFF Research Database (Denmark)

    Hertzum, Morten; Clemmesen, Torkil; Hornbæk, Kasper Anders Søren

    2007-01-01

    Whereas research on usability predominantly employs universal definitions of the aspects that comprise usability, people experience their use of information systems through personal constructs. Based on 48 repertory-grid interviews, this study investigates how such personal constructs are affecte...

  5. 电力通信系统评测体系建设探索与实践%Exploration and practice on test system construction for electric power communication system

    Institute of Scientific and Technical Information of China (English)

    杨鸿珍; 黄红兵; 贺琛; 卢冰; 曹白雪; 张榕; 王星容

    2016-01-01

    Based on the analysis on evaluation and test demand of communication system in Zhejiang Electric Power Company, the construction of a test system for electric power communication is explored and practiced. The orientation and goal are defined, the test scope is planned, and the construction and operation mode are established. The test capability construction work including basic environment, test specification and process, team building are also presented. The objective is to normalize equipment admittance testing, improve analysis ability of business simulation, as well as provide a platform for research and application in communication field, and enhance the technical level and research ability of the company.%在分析浙江电力对通信系统的评测需求基础上,探索建立电力通信系统评测体系,明确定位与目标,确定评测范围规划,建立评测实验室建设与运作体系,并从基础环境、评测规范与流程、人才队伍等方面阐述了评测能力建设的相关内容。目的是规范通信设备入网检测工作,提升业务模拟运行分析能力,为电网通信系统的安全稳定运行提供技术保障,同时为通信领域技术研究和应用提供平台,提升浙江电力通信专业的整体技术水平和科研能力。

  6. Governmentalities of Construction

    DEFF Research Database (Denmark)

    Gottlieb, Stefan; Jensen, Jens Stissing

    2016-01-01

    In this paper, we apply Foucault’s concept of governmentality in a dual analysis of the formation and transformation of the construction sector and the construction worker. The governmentality concept is well-suited for such an analysis as it directs attention to the ways in which control...... is the exercised over a specific area of institutional life through the shaping of individuals’ conduct. We argue that construction, as a coherent sector, first was rendered governable in the 1940s in order to achieve national modernisation. It is shown how the political measures that were based on the exercise...... of disciplinary power also impacted the formation of identities constituting the construction worker as a normalised subject. We then illustrate how construction since the mid-1990s has been shaped by two contrasting governmentalities framing the sector as respectively a resource area, with emphasis on innovation...

  7. Construction and Experiment of a Direct-driven PMSG Wind Power Teaching System%直驱永磁同步风力发电实验系统的构建与实验

    Institute of Scientific and Technical Information of China (English)

    李振东

    2012-01-01

    风能是一种清洁的可再生能源,风力发电是风能利用的主要形式,已成为专业教学研究体系的新兴综合性学科.风力发电实验系统采用变速恒频直驱型永磁同步发电机风力发电系统方案构建,系统运用西门子PLC、工业变频器、异步电动机、永磁同步发电机、DSP、BOOST升压及三相逆变配合各类传感器实现设备功能,并用上位PC机组态软件实现系统监控.在此实用的综合平台可便利地开展风力发电实验与测试项目,有助于学生与使用者掌握风电基本系统控制原理与实验测试技术.%Wind energy is a kind of clean and reproducible energy, and wind power generation, the main form of wind energy utilization,has become a new integrated subject in the professional teaching research system. An experimental wind power system is constructed according to the VSCF direct-driven PMSG wind power system scheme,which achieves its equipment function by the Siemens PLC, an industrial converter, an asynchronous motor, the PMSG, DSP, BOOST and three phase inverter and a variety of sensors, and the host PC monitors system by configuration software. Bases on the practical integrated platform, wind power experiment and test project can be developed expediently, which can help students and users to grasp the basic system control principle and the experimental test technology of wind power.

  8. Reflection on the Practice Patterns under the Construction Mode of Chinese Procuratorial Power%中国检察权建构模式下的实践形态反思

    Institute of Scientific and Technical Information of China (English)

    樊华中; 张敏

    2011-01-01

    关于我国检察权的性质存在多种学说,将其定位于法律监督权属于目前较为统一的看法。在我国的权力建构模式下,检察权若作为法律监督权,在规范层面,将面临很多法律层面的缺位情况。在实际运行层面,则存在着法律监督被放置于刑事诉讼监督、行政机关掌控检察机关的资源、检察权宪法权能与法律权能运行不协调、公诉权是否属于法律监督权等解释难题。%There are several theories about the nature of the procuratorial power of our country,and it is a more consistent view to define it as legal supervision.Under the construction mode of Chinese procuratorial power,if the procuratorial power is regarded as legal supervision,it will be faced with the absence of legal aspects at the normative level.And in actual operation level,there are many problems: legal supervision was placed on the supervision of the criminal proceedings;administrative organs control the resources of prosecution;the constitutional power of prosecutorial power is not consistent with its legal empowerment;public right is within legal supervision or not,etc.

  9. New energy technology development related database construction survey (wind power generation); Shin energy gijutsu kaihatsu kankei data shu sakusei chosa (furyoku hatsuden)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    To arrange systematic data relating to new energy, the latest published data relating to the wind energy conversion systems have been collected and arranged. For the overview of wind energy conversion system, wind turbines with horizontal axis and vertical axis, specification of wind turbine, and conceptual figure of wind energy conversion systems are illustrated. For the installation examples, introduction development of wind energy conversion systems in the world is described for Japan, the USA, Germany, Denmark, Spain, Sweden, India, and Belgium. For the relevant legislation and support plan, relevant legislation for the introduction of wind energy conversion in Japan, support plan in Japan, and support plans in foreign countries are described. Prices of wind turbines by wind turbine makers in the world, construction cost by Japanese makers, basic term, and subsidiary company and organization are shown

  10. New energy technology development related database construction survey (wind power generation); Shin energy gijutsu kaihatsu kankei data shu sakusei chosa (furyoku hatsuden)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    To arrange systematic data relating to new energy, the latest published data relating to the wind energy conversion systems have been collected and arranged. For the overview of wind energy conversion system, wind turbines with horizontal axis and vertical axis, specification of wind turbine, and conceptual figure of wind energy conversion systems are illustrated. For the installation examples, introduction development of wind energy conversion systems in the world is described for Japan, the USA, Germany, Denmark, Spain, Sweden, India, and Belgium. For the relevant legislation and support plan, relevant legislation for the introduction of wind energy conversion in Japan, support plan in Japan, and support plans in foreign countries are described. Prices of wind turbines by wind turbine makers in the world, construction cost by Japanese makers, basic term, and subsidiary company and organization are shown

  11. Electrochemical construction

    Science.gov (United States)

    Einstein, Harry; Grimes, Patrick G.

    1983-08-23

    An electrochemical cell construction features a novel co-extruded plastic electrode in an interleaved construction with a novel integral separator-spacer. Also featured is a leak and impact resistant construction for preventing the spill of corrosive materials in the event of rupture.

  12. Opinions on Deepening Power Institutional Reform in the 11th Five-Year Period

    Institute of Scientific and Technical Information of China (English)

    Working Group of Power Institutional Reform; Ye Qing

    2007-01-01

    @@ Power industry is an important infrastructure for national economic and social development. In the 10th Five-Year Plan period, power institutional reform in China has gained important progress, the basic realization of separation between government and enterprises, as well as between power plants and power grids, the formation of competitive situation in power generation field and power enterprises' vitality have been strengthened;along with power tariff reform incessantly deepening, regional power market initiating and power legal construction further strengthening, the construction of power regulatory system achieving progression. In the course of pushing forward power institutional reform, power safety operation, power personnel's stability and rapid growth of power industry have been ensured,which forcefully supported national economic and social development. However, power institutional reform has achieved but an intermediate result, the mission of reform has not yet completed and some new conditions and problems have arisen. In the 11th Five-Year period, we shall firmly grasp the favorable opportunity of power supply alleviation,insist on proceeding from China's reality, assimilate foreign successful experience, consolidate reform achievement and promote power industry's sustained and healthy development,then people's high quality and inexpensive power service can be ensured.

  13. Analysis on the importance of emergency drills of large area blackout in power grid%浅析电网大面积停电应急演练的重要性

    Institute of Scientific and Technical Information of China (English)

    孙建新

    2016-01-01

    The power grid for a long time,a wide range of power can be caused by road traffic congestion, railway outage,commercial organizations and the functions of the government sector paralysis serious consequences,the power supply enterprise management personnel should pay attention to strengthen the large area blackout emergency drills.This paper analyzes the importance of emergency drills,including assessment of emergency status,enhance the awareness of emergency response and enhance the ability of emergency response.%电网长时间、大范围停电可引起公路交通拥堵、铁路停运、商业机构及政府职能部门瘫痪等严重后果,供电企业调控管理人员应重视强化大面积停电应急演练工作。本文分析了应急演练的重要性,包括评估应急状态、增强应急意识及提升应急能力。

  14. 中国梦视域下网络强国建设的战略思考%Strategic Thinking of Network Power Construction under Chinese Dream Perspective

    Institute of Scientific and Technical Information of China (English)

    贾凯

    2014-01-01

    在人类社会迈入信息社会的今天,信息技术日益成为推动国民经济社会发展的战略性生产要素。信息化与工业化的融合是中国特色新型工业化的主要特征。网络强国战略的提出具有重要意义:网络安全是维护国家安全的关键环节,网络空间是公民政治参与的有效渠道,信息化是中国实现现代化的必然选择。当前中国信息化在网络安全、网络治理、技术创新、均衡发展等方面面临严峻困难。为实现网络强国的奋斗目标和中华民族伟大复兴的中国梦,需要加强国家网络安全的顶层设计,创新网络治理和舆情引导工作,加快网络基础设施建设和均衡发展,把增强网络技术自主创新能力作为网络强国建设的战略基点。%In this information time,information technology has become a strategic production factor to promote national economy and social development. Integration of information technology and industrialization is the main feature of the new industrialization with Chinese characteristics.The propose of network power strategy has great significance: network security is the key to safeguarding national security, cyberspace is an effective channel for citizens' political participation, information is the inevitable choice for China to achieve modernization. The current information technology of China is facing severe difficulties in network security, network management, technological innovation, the balance of development. To achieve the goal of network power and the great rejuvenation of the Chinese dream, we need strengthen the country's top-level design of network security, innovate network govermence and guidance for public opinions, accelerate network infrastructure and balanced development of network technology,and treat enhancing the capability of independent innovation as strategic basis of building network power.

  15. 构建高职“课证融通”课程标准的策略研究-以电力系统继电保护与自动化专业为例%Study on the Strategy of Constructing Higher Vocational Education“Course Certificate Integration”Curriculum Standard-the Case of Power System Relay Protection and Automation Profession

    Institute of Scientific and Technical Information of China (English)

    韩绪鹏; 李道霖

    2014-01-01

    “课证融通”高职课程标准是构建专业工学结合课程体系的重要基础,如果高职课程标准与职业岗位技能标准完全对接,将有力地推动行业类高职院校的特色专业建设。对此,以三峡电力职业学院电力系统继电保护与自动化专业为例,融合三峡区域的电力特色和电力行业的最新要求,从两个方面探讨高职课程标准如何对接职业岗位技能标准,即:一方面必须以行业特色为依托构建电力系统继电保护与自动化“课证融通”课程标准,另一方面提出构建电力系统继电保护与自动化专业“课证融通”课程标准的“四对接”策略。%“Course certificate integration”higher vocational curriculum standards are the important basis of the profession work-study combined curriculum system. If the higher vocational curriculum standard completely docks occupation skill standards, it will effectively promote the characteristic specialty construction of industry vocational college. Taking power system relay protection and automation specialty in Three Gorges Vocational College as an example, with the fusion of power characteristic of Three Gorges area and the new requirements for electric power industry, this paper discusses how higher vocational curriculum standard docks occupational position skill standard from two aspects. On one hand, higher vocational education shall construct the electrical power system relay protection and automation“course certificate integration”curriculum standard based on industry characteristics;On the other hand, the four-docking strategy is proposed to construct the above curriculum standard.

  16. The power elite

    Energy Technology Data Exchange (ETDEWEB)

    Bocking, S.

    1997-05-01

    The Bakun Dam is presently under construction in the state of Sarawak in Malaysia. Plans for the dam were first proposed in the early 1980, cancelled in 1990, and revived in 1993. The construction of the dam will have important social and environmental repercussions. 69,000 hectares of tropical forest will be flooded and more than 5,000 people will be displaced. The scale of the project was its own justification, since the Malaysian government has defined a national vision of full industrialization by 2020, and defines mega-projects as central to its achievement.Opponents argue that the dam will generate electricity, at great cost, for which there is no immediate market. Even if its power will be required by 2002 (when the dam is expected to be finished) it will be more expensive than power available from other sources. There are also many uncertainties concerning technical details, such as the 650 km long undersea power cables which will supply industrial centres. These centres are already enjoying an overabundance of less expensive electricity. The debate over the merits of the Bakun Dam has been hindered by restricted access to information and limitations on media coverage of opposing points of view.

  17. IMPORTANT NOTIFICATION

    CERN Multimedia

    HR Department

    2009-01-01

    Green plates, removals and importation of personal effects Please note that, as from 1 April 2009, formalities relating to K and CD special series French vehicle plates (green plates), removals and importation of personal effects into France and Switzerland will be dealt with by GS Department (Building 73/3-014, tel. 73683/74407). Importation and purchase of tax-free vehicles in Switzerland, as well as diplomatic privileges, will continue to be dealt with by the Installation Service of HR Department (Building 33/1-011, tel. 73962). HR and GS Departments

  18. Research-based Teaching Experiment Platform Construction for the Power Supply System of Aircraft%航空电源系统研究型教学实验平台的建设

    Institute of Scientific and Technical Information of China (English)

    魏佳丹; 秦海鸿; 刘闯

    2015-01-01

    This paper presents a research-based teaching experiment platform construction for the power supply sys-tem of aircraft based on the curriculum of Power Supply of Aeronautics and Astronautics. The theory and simulation analysis,hands-on activities and the innovative exploration and research can be achieved on the proposed platform, the combination of advanced researching results of aircraft power supply system and the curriculum teaching will be useful for the promotion of course teaching,and ability achievement of integrate theory and practice,hand-on activ-ities and innovation can also be realized.%本文在“航空航天器供电系统”课程教学基础上,开展了为学生提供理论、仿真分析和动手操作的航空电源系统实验平台建设,将学科关于航空电源系统的先进研究成果与课程教学工作相结合,既能够促进航空电源系统教学工作,又能够增强学生理论与实践相结合的能力,还能够激励学生开展创新性探索研究工作。

  19. Constructive and functional modernization of EAF

    Science.gov (United States)

    Ioana, A.; Constantin, N.; Moldovan, P.

    2015-06-01

    This article presents the main constructive and functional modernization of Electric Arc Furnace (EAF). Schwabe is the creator of UHP (Ultra High Power) EAF. We present in this article the optimal use of EAF power and time aspects. These two main factors determine the increase in the productivity of the Electric Arc Furnace. Electric arc furnace operation can be based on either the short arc (with high intensity and low voltage) or long arc version (with low intensity and high voltage). Introduction of vault walls and water cooled has resulted in major reductions in the consumption of refractory bricks from electric arc furnace. Another important technological evolution inserted in the process of elaboration of steel in electric arc furnace is lowering the temperature of the exhaust. Using a system of intensive oxygen insufflation during melting can get many technological advantages. Another constructive and functional modernization is EAF inflatable sealing device for retention of slug.

  20. Microwave power transmitting phased array antenna research project

    Science.gov (United States)

    Dickinson, R. M.

    1978-01-01

    An initial design study and the development results of an S band RF power transmitting phased array antenna experiment system are presented. The array was to be designed, constructed and instrumented to permit wireless power transmission technology evaluation measurements. The planned measurements were to provide data relative to the achievable performance in the state of the art of flexible surface, retrodirective arrays, as a step in technically evaluating the satellite power system concept for importing to earth, via microwave beams, the nearly continuous solar power available in geosynchronous orbit. Details of the microwave power transmitting phased array design, instrumentation approaches, system block diagrams, and measured component and breadboard characteristics achieved are presented.

  1. Contribution of UHV Grid to United National Power Market

    Institute of Scientific and Technical Information of China (English)

    Guo Lei; Wei Bin; Ma Li; Cheng Wen

    2010-01-01

    @@ Power market construction is an important part of the marketization reform in China's electric power industry and an essential part of the economic system reform in China. With the social and economic development, the contradiction between distribution of energy resources and development of regional economies gets increasingly noticeable, and a united national power market is consequentially required to optimize the allocation of energy resources over the whole country. Analyses indicate that the development of UHV grid will provide a strong material support for the united national power market by expanding market coverage, lowering load fluctuation and promoting diversification of power resources.

  2. 电力企业变电检修工作的重要意义和管理模式研究%Study on the Important Meaning and Management Mode of Power Enterprises' Substation Maintenance

    Institute of Scientific and Technical Information of China (English)

    袁征翔

    2015-01-01

    In order to make the enterprise in the market share more and more, it is necessary to do a good job of service and management, to ensure the power supply system security and reliability, so that users feel that the enterprise is worthy of choice and trust. The substation maintenance work is a very important part of the electric power enterprise work, it is very important to do a good job in substation maintenance and management.%要想让企业在市场上占有越来越多的份额,就必须做好服务和管理工作,保证供电系统的供电安全性和可靠性,让用户觉得该企业是值得选择和信赖的.而变电检修工作是电力企业工作中尤为重要的一部分,做好变电检修工作和管理具有重要的意义.

  3. Analysis on The Importance of Cost Control in The Construction Project%浅谈建设项目全过程造价控制的重要性

    Institute of Scientific and Technical Information of China (English)

    宋春荣

    2012-01-01

    工程建设过程中造价控制是工程建设控制的目标之一,工程造价的高低直接反映了建设项目的管理水平、投资效益和工程质量。在建设工程中,工程造价是建设工程中系统管理工作的核心,降低工程造价提高经济效益是控制工程造价的目的。本文叙述了工程建设从投资决策、设计、招投标、施工及竣工验收各阶段工程造价的控制方法。%Cost control, one of the goals in controlling the construction, directly shows the management level, investment benefits and construction quality by whose level. As the core of the construction system management, the cost impacts the project profit. Cutting down the cost is the way to make a better profit. This article will give us a description about the methods of cost control in every steps of a construction, including investment decision, designing, inviting and submitting tenders, under construction, and acceptance check.

  4. Avaliação da importância relativa dos critérios para a seleção de Sistemas Integrados de Gestão (ERP para uso em empresas da construção civil Evaluation of the importance of criteria for the selection of Integrated Management Systems (ERP for use in civil construction companies

    Directory of Open Access Journals (Sweden)

    Mirian Picinini Picinini Méxas

    2013-06-01

    survey of IT and civil construction areas was conducted on a sample of 79 respondents in order to investigate the relative importance of these criteria. The survey demonstrated that the Financial, Business, and Software criteria were considered by the respondents as the most important.

  5. Agent-based power sharing scheme for active hybrid power sources

    Energy Technology Data Exchange (ETDEWEB)

    Jiang, Zhenhua [Department of Electrical and Computer Engineering, University of Miami, Coral Gables, FL 33146 (United States)

    2008-02-15

    The active hybridization technique provides an effective approach to combining the best properties of a heterogeneous set of power sources to achieve higher energy density, power density and fuel efficiency. Active hybrid power sources can be used to power hybrid electric vehicles with selected combinations of internal combustion engines, fuel cells, batteries, and/or supercapacitors. They can be deployed in all-electric ships to build a distributed electric power system. They can also be used in a bulk power system to construct an autonomous distributed energy system. An important aspect in designing an active hybrid power source is to find a suitable control strategy that can manage the active power sharing and take advantage of the inherent scalability and robustness benefits of the hybrid system. This paper presents an agent-based power sharing scheme for active hybrid power sources. To demonstrate the effectiveness of the proposed agent-based power sharing scheme, simulation studies are performed for a hybrid power source that can be used in a solar car as the main propulsion power module. Simulation results clearly indicate that the agent-based control framework is effective to coordinate the various energy sources and manage the power/voltage profiles. (author)

  6. Agent-based power sharing scheme for active hybrid power sources

    Science.gov (United States)

    Jiang, Zhenhua

    The active hybridization technique provides an effective approach to combining the best properties of a heterogeneous set of power sources to achieve higher energy density, power density and fuel efficiency. Active hybrid power sources can be used to power hybrid electric vehicles with selected combinations of internal combustion engines, fuel cells, batteries, and/or supercapacitors. They can be deployed in all-electric ships to build a distributed electric power system. They can also be used in a bulk power system to construct an autonomous distributed energy system. An important aspect in designing an active hybrid power source is to find a suitable control strategy that can manage the active power sharing and take advantage of the inherent scalability and robustness benefits of the hybrid system. This paper presents an agent-based power sharing scheme for active hybrid power sources. To demonstrate the effectiveness of the proposed agent-based power sharing scheme, simulation studies are performed for a hybrid power source that can be used in a solar car as the main propulsion power module. Simulation results clearly indicate that the agent-based control framework is effective to coordinate the various energy sources and manage the power/voltage profiles.

  7. Cause and countermeasure of protective coating failure for AP1000 nuclear power station during construction%AP1000核电站施工期间防护涂层失效的原因及对策

    Institute of Scientific and Technical Information of China (English)

    李炳颖; 林金平; 朱瑞峰

    2015-01-01

    基于山东海阳核电项目,对AP1000核电站独特的模块化建造施工工艺带来的防护涂层破坏问题进行了分析:“开顶法”施工使涂层遭受光照和雨水侵蚀,潮湿的环境有利于霉菌生长并加速对涂层的浸蚀,运输、组装、吊装、焊接等施工过程造成涂层损伤,涂层体系选择不当,等等。提出了相应的解决措施:合理安排施工进度,加盖临时覆盖物,加强排水通风,将用于混凝土墙面的内墙涂料Dry Fall改为耐辐射、防潮防污、耐老化性能好的Macropoxy646涂料,采用“无机富锌+环氧面漆”复合涂层体系代替环氧单层漆用于结构模块和钢结构件等。%Based on the Shandong Haiyang Nuclear Power Plant project, the problem of protection coating failure during the special modularization construction of AP1000 nuclear power plant was analyzed as follows:open-top construction leads to coating suffering of sun light irradiation and rain water erosion;wet environment benefits the mildew growth and accelerates coating erosion;coating is easily damaged during transportation, assembly, lifting, setting, soldering, and other construction procedures;and improper coating system is selected. Some countermeasures were presented:reasonably arrange construction schedule;add temporary covering;enhance water discharge and airing;replace the Dry Fall interior wall coating for concrete wall by Macropoxy646 coating which has good resistance to irradiation, moisture, fouling, and aging; and use a composite coating system composed of inorganic zinc-rich primer plus epoxy topcoat in place of the monolayer epoxy paint for structural modules and steel structure parts.

  8. THE CONCEPT OF UNINTERRUPTED POWER SUPPLY SYSTEMS

    Directory of Open Access Journals (Sweden)

    Grigorash O. V.

    2016-05-01

    Full Text Available We have revealed the main reasons for interruptions in power supply to consumers of electricity. To improve the reliability and the efficiency of power supply for responsible consumers, we have proposed to develop energy efficient combined energy-saving systems for uninterrupted power supply with use of renewable energy sources. The article lists major principles of the development of such systems; it shows the necessity of constructing a generalized schema that contains the possible types and the sources of electric power converters. It also reveals the modern requirements to systems of uninterrupted energy supply. To improve the operational and technical characteristics of the uninterruptible power supply, it has been proposed to use a new circuitry that includes a contactless power generators, the direct frequency converters used to stabilize the voltage and frequency of the current generators of wind turbines, static converters made with the use of single-phase transformers with rotating magnetic field, universal static converters that can operate in the regimes of known types of converters. The article presents features of the modular construction of systems of uninterrupted energy supply and optimization of their structural decisions on key performance criteria. It shows the algorithm of synthesis of structural designs of combined systems of uninterrupted power supply. An important step for further research with the aim of improving operational and technical characteristics of the combination of uninterrupted power supply systems is the mathematical modeling of physical processes in power circuits of the system in both normal and emergency modes of operation

  9. MAST Upgrade – Construction Status

    Energy Technology Data Exchange (ETDEWEB)

    Milnes, Joe, E-mail: Joe.Milnes@ccfe.ac.uk; Ayed, Nizar Ben; Dhalla, Fahim; Fishpool, Geoff; Hill, John; Katramados, Ioannis; Martin, Richard; Naylor, Graham; O’Gorman, Tom; Scannell, Rory

    2015-10-15

    Highlights: • Outlines unique capability of MAST-U, including divertor and diagnostic capability. • Describes progress made in the manufacture and assembly of key MAST-U components. • Highlights the design challenges that have been overcome. • Lists the key lessons learned thus far in the project. - Abstract: The Mega Amp Spherical Tokamak (MAST) is the centre piece of the UK fusion research programme. In 2010, a MAST Upgrade programme was initiated with three primary objectives, to contribute to: (1) testing reactor concepts (in particular exhaust solutions via a flexible divertor allowing Super-X and other extended leg configurations); (2) adding to the knowledge base for ITER (by addressing important plasma physics questions and developing predictive models to help optimise ITER performance of ITER) and (3) exploring the feasibility of using a spherical tokamak as the basis for a fusion Component Test Facility. With the project mid-way through its construction phase, progress will be reported on a number of the critical subsystems. This will include manufacture and assembly of the coils, armour and support structures that make up the new divertors, construction of the new set coils that make up the centre column, installation of the new power supplies for powering the divertor coils and enhanced TF coil set, progress in delivering the upgraded diagnostic capability, the modification and upgrading of the NBI heating systems and the complete overhaul of the machine control infrastructure, including a new control room with full remote participation facilities.

  10. Electric power universalization: a political analysis of the energy distribution and its socio-environmental importance for the Amazon state, Brazil; Universalizacao da energia eletrica: uma analise politica da distribuicao de energia e da sua importancia socio-ambiental para o Amazonas

    Energy Technology Data Exchange (ETDEWEB)

    Valois Coelho, Ilsa Maria [Centro Universitario Nilton Lins, Manaus, AM (Brazil)], e-mail: Ivalois@horizon.com.br; Cartaxo, Elizabeth Ferreira [Universidade Federal do Amazonas (UFAM), Manaus, AM (Brazil)], e-mail: Ecartaxo@ufam.edu.br

    2004-07-01

    The global distribution of electric energy in this article, attend to the electric and social exclusion and to regional inequalities in developing countries, with the objective to put up arguments about the question of the social and environmental injustice. It considers the need to plan the balance between the nature budget and the society budget without forgetting the fundamental principles of the thermodynamic and powerful interests involved. Alert to dangers of the exploit the natural resources looking for more energy. Although, the article shows up, the importance of the energy in developing societies. It gives information from IBGE and MME, about the relation between electric exclusion and social exclusion, calling attention to the impossibility to see concrete solutions, out of the social-economic context. Difficulties to construct Amazon indicators were improved on partly by own estimate, because the importance of the Amazon region to the environmental sustainability and the demographic, social and economic difficulties to the electric energy distribution for all Brazilian people. (author)

  11. Ship construction

    National Research Council Canada - National Science Library

    Eyres, D.J; Bruce, G.J

    2012-01-01

    .... "Acting as both a professional reference on current approaches in shipyard practice and a comprehensive introduction for students in any marine discipline, Ship Construction covers the complete...

  12. Constructive Fun.

    Science.gov (United States)

    Simanek, Donald E.

    1994-01-01

    Compares and reviews currently available brands of steel construction sets that are useful to physics teachers for building demonstrations, prototypes of mechanisms, robotics, and remote control devices. (ZWH)

  13. The Construction of the Discourse power of Government Microblog in the Perspective of Habermas’ s Theory of Communication%哈贝马斯交往理论视阈下政务微博话语权的建构

    Institute of Scientific and Technical Information of China (English)

    刘志刚

    2015-01-01

    The information dissemination way of the Internet age makes the discourse power of government microblog face the conflict of deconstruction and construction.The construction of government microblog discourse power is of great benefit to lead the social thoughts,to gather consensus,to pass the socialist core values,and to improve the party’ s leadership and the ruling way.Using Habermas’ s theory of communication,to explore the current situation of government microblog,and explore the path of building government microblog discourse,can be committed to the establishment of the concept of equality and interaction,enhance the practice of government microblog,improve the system of government microblog system,build government microblog linkage system,etc.%互联网时代去中心化的信息传播方式,使政务微博的话语权面临着解构和建构的冲突。而政务微博话语权的建构对于引领社会思潮、凝聚共识,传递社会主义核心价值观,改进党的领导方式和执政方式大有裨益。借鉴哈贝马斯的交往理论,针对政务微博现状,探索建构政务微博话语权的路径,有助于树立平等交互主体的理念,改善政务微博的表达方式,增强政务微博的实践指向,完善政务微博的制度化建设,构建政务微博联动体系等方面的研究。

  14. 海外新华侨华人社团与国家"软实力"建设研究%Research on New Overseas Chinese Associations andthe Construction of "soft power"

    Institute of Scientific and Technical Information of China (English)

    衣长军

    2016-01-01

    以康奈尔大学修改蔡英文当选台湾地区领导人报道为例,分析海外新华侨华人社团在塑造国家形象,传播中华文化,提升国际话语权以及改善国际舆论环境,维护国家尊严与主权等方面具有独特价值,提出布局顶层设计,构建协同机制;主动服务引导侨团融入主流社会;培育文化认同,凝聚族群意识以及涵养侨务资源,维护华侨华人权益,从而不断优化完善海外新华侨华人社团在国家"软实力"建设中的有效路径.%Taken Cornell University modify elected Taiwan leader Ying-wen Cai to report as an example,the study analysis the new overseas Chinese Associations has a unique value on shaping the image of the country,spreading Chinese culture,enhancing the international discourse power,improving the international public opinion environment,safeguarding national dignity and sovereignty,etc.Then,proposes layout of top-level design and construction of Cooperation Mechanism;next actively services overseas compatriot boot into mainstream society,fosters cultural identity,coheres ethnic awareness and unites Overseas Chinese resources and safeguards the interests of overseas Chinese.So as to continuously improve the optimization of new overseas Chinese associations in the country "soft power "construction of a valid path.

  15. Wind power - a power source now enabled by power electronics

    DEFF Research Database (Denmark)

    Blaabjerg, Frede; Iov, Florin

    2007-01-01

    energy at the end-user should be set up. Deregulation of energy has lowered the investment in larger power plants, which means the need for new electrical power sources may be increased in the near future. Two major technologies will play important roles to solve the future problems. One is to change...... renewable energy sources, wind energy, which by means of power electronics are changing from being minor energy sources to be acting as important power sources in the energy system....

  16. 300MW火电机组锅炉过热蒸汽减温器更换吊装施工方案%Construction Scheme of Replacing Hoisting of 300MW Thermal Power Boiler Superheater Steam Desuperheater

    Institute of Scientific and Technical Information of China (English)

    李永波

    2012-01-01

    国投曲靖发电有限公司#2、#3、#4炉过热系统Ⅱ、Ⅲ级减温器减温水管与减温器焊口产生裂纹,严重影响机组安全运行,业主决定割除旧设备更换新设备,由于设备所处位置空间狭小,施工难度极大,存在较大安全风险.经过认真的现场勘察,合理科学地编制施工吊装方案,最终顺利完成了此项工作.%The crack was emerged in desuperheater water pipe and welding of #2,#3,#4 boiler superheating system Ⅱ, Ⅲ desuperheater in SDIC Qujing Power Generation Co., Ltd., which seriously affects the safe operation of the unit, the owners decided to remove the old equipment to replace the new equipment, because the location of equipment in narrow space, construction difficulty is great, there is a big safety risk. After careful investigation, reasonable scientific establishment construction hoisting scheme, finally completed this work.

  17. Detailed Distribution Map of Absorbed Dose Rate in Air in Tokatsu Area of Chiba Prefecture, Japan, Constructed by Car-Borne Survey 4 Years after the Fukushima Daiichi Nuclear Power Plant Accident.

    Science.gov (United States)

    Inoue, Kazumasa; Arai, Moeko; Fujisawa, Makoto; Saito, Kyouko; Fukushi, Masahiro

    2017-01-01

    A car-borne survey was carried out in the northwestern, or Tokatsu, area of Chiba Prefecture, Japan, to make a detailed distribution map of absorbed dose rate in air four years after the Fukushima Daiichi Nuclear Power Plant accident. This area was chosen because it was the most heavily radionuclide contaminated part of Chiba Prefecture and it neighbors metropolitan Tokyo. Measurements were performed using a 3-in × 3-in NaI(Tl) scintillation spectrometer in June 2015. The survey route covered the whole Tokatsu area which includes six cities. A heterogeneous distribution of absorbed dose rate in air was observed on the dose distribution map. Especially, higher absorbed dose rates in air exceeding 80 nGy h-1 were observed along national roads constructed using high porosity asphalt, whereas lower absorbed dose rates in air were observed along local roads constructed using low porosity asphalt. The difference between these asphalt types resulted in a heterogeneous dose distribution in the Tokatsu area. The mean of the contribution ratio of artificial radionuclides to absorbed dose rate in air measured 4 years after the accident was 29% (9-50%) in the Tokatsu area. The maximum absorbed dose rate in air, 201 nGy h-1 was observed at Kashiwa City. Radiocesium was deposited in the upper 1 cm surface layer of the high porosity asphalt which was collected in Kashiwa City and the environmental half-life of the absorbed dose rate in air was estimated to be 1.7 years.

  18. 赢得值法在电网工程项目施工管理中的应用%Application of Earned Value Management in Power Grid Project Construction

    Institute of Scientific and Technical Information of China (English)

    李焱; 刘士李

    2012-01-01

    赢得值法作为一种先进的管理方法,已普遍应用于项目进度、成本控制中。以电力施工企业某变电站土建工程为例,详细介绍赢得值法的使用,并探索其在应用中的缺陷及对策分析,通过主要参数对比,及时发现解决问题,促进工程施工费用与进度的统一。%Earned Value Management ( EVM ), an advanced management method, has been widely applied in the project scheduling and cost control. This paper has elaborated on the application of EVM and explored its application deficiencies and countermeasures based on the case study of the civil work of a transformer substation in a power construction enterprise. By comparing the main parameters, the problems and the solutions are to be found out in order to promote the harmony between construction cost and orogress.

  19. 抽水蓄能电站建设财务管理应注意的问题%Financial Management in the Construction of Pumped-storage Power Station

    Institute of Scientific and Technical Information of China (English)

    马善忠; 陈春晓; 黄皖红

    2012-01-01

    Bailianhe Pumped-storage Power Station is one of key projects in China's Eleventh Five-Year Plan with longer construction period, large amount of investment and various types of equipments. By strengthening financial management and focusing on the capital management, cost accounting and process supervision during project construction, Hubei Bailianhe Pumped Storage Company has effectively lowered project cost, avoided the capital risk and saved project investment.%白莲河抽水蓄能电站工程建设周期较长、投资大、设备种类繁多,是国家“十一五”时期重点工程项目.湖北白莲河抽水蓄能有限公司在建设中通过加强基建财务管理,注重基建资金管理、会计核算和过程监督,有效地降低工程造价,规避了资金风险,节省了工程投资.

  20. The possible negative consequences of underground dam and reservoir construction and operation in coastal karst areas: an example of the hydro-electric power plant (HEPP) Ombla near Dubrovnik (Croatia)

    Science.gov (United States)

    Roje-Bonacci, T.; Bonacci, O.

    2013-08-01

    The Ombla Spring represents a typical abundant coastal karst spring located in the vicinity of the town of Dubrovnik (Croatia). Its outlet is at an altitude of 2.5 m above sea level (m a.s.l.) and the water from it immediately flows into the Adriatic Sea. The minimum and maximum measured discharges are 3.96 m3 s-1 and 117 m3 s-1, respectively. The Trebišnjica River traverses through its catchment. The mean annual discharge, after the canalization of over 60 km of its watercourse with spray concrete (in the time span 1981-2011), is 24.05 m3 s-1. Before massive civil engineering work which took place during 1968-1980, the mean annual discharge was 28.35 m3 s-1. There is a project for construction of the hydro-electric power plant (HEPP) Ombla, which will exclusively use groundwater from the Ombla Spring karst aquifer. The underground dam will be constructed about 200 m behind the existing karst spring outflow in the karst massif, by injecting a grout curtain. The top of the grout curtain is planned to be at an altitude of 130 m a.s.l. This karst system is complex, sensitive, vulnerable and ecologically extremely valuable. The grout curtain, as well as the HEPP Ombla development, could lead to extremely dangerous technical and environmental consequences. In this paper some probable, negative consequences of the HEPP Ombla construction and development are explained. The HEPP Ombla could result in many large and hard-to-predict negative consequences which are specific for this particular HEPP, for example (1) severe spring discharge change; (2) unpredictable regional groundwater redistribution; (3) threatening of endemic fauna; (4) induced seismicity; (5) induced sinkholes; (6) occurrence of landslides; (7) conflict regarding internationally shared karst aquifers; (8) intensification of karst flash floods; (9) sea water intrusion in coastal karst aquifer; etc.