WorldWideScience

Sample records for aspects energia nuclear

  1. Nuclear energy - some aspects; Energia nuclear - alguns aspectos

    Energy Technology Data Exchange (ETDEWEB)

    Bandeira, Fausto de Paula Menezes

    2005-05-15

    This work presents a brief history of research and development concerning to nuclear technology worldwide and in Brazil, also information about radiations and radioactive elements as well; the nuclear technology applications; nuclear reactor types and functioning of thermonuclear power plants; the number of existing nuclear power plants; the nuclear hazards occurred; the national fiscalization of nuclear sector; the Brazilian legislation in effect and the propositions under proceduring at House of Representatives related to the nuclear energy.

  2. Projeto de pesquisa Energia Nuclear

    Directory of Open Access Journals (Sweden)

    Marcelo Henrique Barbosa Fiori

    2011-07-01

    Full Text Available Esse  projeto tem como intuito mostrar como pode se útil a utilização da energia nuclear para o abastecimento elétrico de uma escola. Mostrando que a energia nuclear é sim uma fonte viável de produção de energia “[...] meio quilo de urânio, do tamanho da ponta do meu dedo se você conseguir liberar toda a energia equivale a 5.000 barris de petróleo”.

  3. O espaço da energia nuclear no Brasil

    Directory of Open Access Journals (Sweden)

    Joaquim Francisco de Carvalho

    2012-01-01

    Full Text Available Este artigo repassa a história e descreve a experiência acumulada em energia nuclear no Brasil, mostrando que as aplicações biomédicas, industriais e agrícolas desenvolveram-se bem no país, a partir dos anos 1950. Em seguida, o artigo demonstra que o país pode cobrir seu consumo de energia elétrica apenas com fontes renováveis de energia, sem recorrer a usinas nucleares de potência. Por fim, são analisados os argumentos comuns na imprensa, a favor e contrários às centrais nucleares, e são discutidos alguns aspectos comerciais e políticos do problema. São também examinadas as estratégias de vendas da indústria nuclear no Brasil.This article reviews the history and describes the experience on nuclear energy in Brazil, showing that nuclear technology applied to biomedical sciences, industry and agriculture has been largely developed in this country, from the year 1950 on. Then the paper shows that Brazil can cover its electricity consumption with only renewable energy sources, without nuclear power plants. Finally the arguments usually employed in the press, pro and against nuclear power plants are analyzed and some commercial and political aspects of the problem are commented. The sales strategy of the nuclear industry in Brazil is also commented.

  4. The role of nuclear energy in brazilian energy matrix: socioeconomic and environmental aspects; O papel da energia nuclear na matriz energetica brasileira: aspectos socioeconomicos e ambientais

    Energy Technology Data Exchange (ETDEWEB)

    Schirmer, Priscila

    2016-09-01

    With the large increase of energy demand in the world, either for the continued expansion of industrialization, or by the raise of consumption, are increasing the need for energy sources diversification and the search for cleaner alternatives of energy production. Nuclear power has been considered as an option to curb the emission of greenhouse gases and reduce the dependence of fossil fuels. However, nuclear energy is an issue that still causes a lot of doubt and questions, turning the development of this work very important for a better understanding of the lay public as well as to contribute and encourage future research through an assessment of their environmental and socio-economic aspects, discussing the risks, benefits, and an assessment of the expansion of nuclear energy use, including an overview of nuclear energy in Brazil. Concluding that nuclear energy can contribute to the expansion of the Brazilian energy matrix, as the only heat source able to ensure constant supply of energy without emitting greenhouse gases. Considering that Brazil dominates the technology of the nuclear fuel cycle, and has a large reserves of uranium. A larger share of nuclear energy in the Brazilian energy matrix can generate greater diversification of the same, valuing the environmental and economic sustainability of the country and reducing the system's vulnerability. However, nuclear generation should not be considered as the only solution to the energy problems of the country, but make a part of it by the combination with other renewable sources, increasing the diversity and energy security of the country. (author)

  5. L'energia nuclear: pot resoldre el problema de l'escalfament global?

    OpenAIRE

    Puig, Josep

    2006-01-01

    Sovint es diu que l'energia nuclear pot ser la solució pel problema de l'escalfament global: l'article presenta dades i raonaments per concloure que, si tota l'electricitat mundial fos d'origen nuclear, l'escalfament global es reduiria tan sols en un 12%. També s'analitzen els subproductes militars de la indústria de l'energia nuclear "civil" i la problemàtica dels residus radioactius de l'energia nuclear de fissió. També s'analitza l'alt grau de dificultats que presenta l'energia nuclear de ...

  6. Management report 2003 CNEN - Brazilian Nuclear Energy Commission; Relatorio de gestao 2003 CNEN - Comissao Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-03-15

    This document reports the general activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2003, involving the government programs in the areas of nuclear safety, medicine application, technological development, administration and miscellaneous.

  7. Nuclear energy and climate change; Energia nuclear y cambio climatico

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez Jimenez, A.

    2002-07-01

    Energy is one of the essential motives for social and economic development of the humanity. Nuclear energy is a feasible option to stand up to a larger demand of energy, and it is playing, and will continue playing in the future, a decisive role in the debate about climate change and sustainable development, and in the efforts to reduce the CO{sub 2} emissions. (Author)

  8. Nuclear energy and sustainable development; Energia Nuclear y desarrollo sostenible

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez, E.

    2005-07-01

    To sustain decent environmental conditions, it is essential to contain the emission of greenhouse gases. to a great extent, this can be achieved by reducing the almost exclusive dependence of fossil fuels for producing electricity and by championing nuclear energy and the renewable, which in the end are the least contaminating. Specifically, operation of the European nuclear fleet avoids the yearly emission of 700 million tons of CO{sub 2} to the atmosphere. The need to combat climate change is very serious and increasingly imminent, especially if we remember that the World Health Organization has said that climate change could eventually cause 300,000 deaths. The different social players are aware of the problem. In fact, the European Union's Cabinet of Ministers approved the post-kyoto Environmental Strategy, which underlines the need to reduce CO{sub 2} emissions by 80% by the year 2050. It seems obvious that, in the long run, technological research and development will be fundamental pieces in the battle against environmental change and in the effort to one day provide 2,000 million people with access to electricity. (Author)

  9. Management report 2004 CNEN - Brazilian Nuclear Energy Commission; Relatorio de gestao 2004 CNEN - Comissao Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-03-15

    This document reports the results of the activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2004, involving the Brazilian program of nuclear activities in the areas of nuclear safety, research and development, radiopharmaceutical production, institutional management, teaching, administration in general and miscellaneous.

  10. Management report 2006 CNEN - Brazilian Nuclear Energy Commission; Relatorio de gestao 2006 CNEN - Comissao Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-03-15

    This document reports the results of the activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2005, involving the Brazilian program of nuclear activities in the areas of nuclear safety, research and development, radiopharmaceutical production, institutional management, teaching, administration in general and miscellaneous.

  11. Management report 2005 CNEN - Brazilian Nuclear Energy Commission; Relatorio de gestao 2005 CNEN - Comissao Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-03-15

    This document reports the results of the activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2005, involving the Brazilian program of nuclear activities in the areas of nuclear safety, research and development, radiopharmaceutical production, institutional management, teaching, administration in general and miscellaneous.

  12. Management report 2007 CNEN - Brazilian Nuclear Energy Commission; Relatorio de gestao 2007 CNEN - Comissao Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    This document reports the general activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2007, involving the CNEN role in the public policy execution, the Brazilian program of nuclear activities in the areas of nuclear safety, research and development, radiopharmaceutical production, teaching, administration in general and miscellaneous.

  13. Medical aspects of nuclear armament

    Energy Technology Data Exchange (ETDEWEB)

    Janse, M.J.; Schene, A.; Koch, K.

    1983-06-18

    The authors highlight a few medical, biological and psycological aspects of the use of nuclear weapons, drawing attention to their viewpoint that doctors should actively participate in the fight against nuclear armament. The short and long-term radiation effects on man and ecology are presented based on the Hiroshima and Nagasaki experiences. The danger of human error within this framework is emphasised and it is suggested that it is the medical profession's duty to point out how the effect of stress and boredom can lead to a nuclear catastrophe. Medical expertise may also help in the identification of unstable personalities among those who have access to nuclear weapons and in the understanding of the psycology of international conflicts and the psychopathology of those leaders who would use nuclear war as an instrument of national policy. Finally the effects of the nuclear war threat on children and teenagers are considered.

  14. The situation of the nuclear energy in the world; A situacao da energia nucleoeletrica no mundo

    Energy Technology Data Exchange (ETDEWEB)

    Souza, Jair Albo Marques de [and others

    1996-12-01

    This work presents an overview of the nuclear energy in the world. It approaches the following main topics: kinds of nuclear power plants; operation experience of the nuclear plants; environmental and social aspects of the nuclear energy; economic aspects of the nuclear energy; development of the reactors technology and supply of the nuclear fuel.

  15. New nuclear projects in the world. Sustainable Nuclear Energy; Nuevos proyectos nucleares en el mundo. energia nuclear sostenible

    Energy Technology Data Exchange (ETDEWEB)

    Leon, P. T.

    2011-07-01

    Nuclear power has experienced a major boom in the last few years, primarily because it is a non-CO{sub 2} emitting energy source, it can be produced at competitive costs and it can boost a country's security of supply. there are still two issues to be addressed in relation to the currently used technologies: the degree to which the energy content of nuclear fuel is used, and wastes. A solution to both these aspects would ut nuclear power in the category of sustainable energy. The article provides details on current nuclear plans in the wold, the impact of the Fukushima accident on different countries nuclear plans and the European initiatives for sustainable nuclear energy development. (Author)

  16. The convenience of nuclear energy; La conveniencia de la energia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Lucena, A.

    2007-07-01

    It is unquestionable that the power sources must change, for the same reasons for which the propagandist ones have been appropriated of the nuclear energy: its use is not a sustainable practice and produces the climatic change and other many damages. In this sense, any alternative has to be considered, and, a priori, the nuclear one, that at this moment is very minority in the power system, does not have to be an exception. For that reason it is not necessary to let be critical with anyone of the alternatives that are considered, and this aspect also affects the nuclear energy. (Author)

  17. Nuclear energy, energy for the present and the future; Energia nuclear, una energia para el presente y el futuro

    Energy Technology Data Exchange (ETDEWEB)

    Arredondo S, C. [ININ, 52750 La Marquesa, Estado de Mexico (Mexico)]. e-mail: cas@nuclear.inin.mx

    2008-07-01

    In this work we will try to show that nuclear energy can contribute to the generation energy in the present and the future, considering that its effect on the climatic change is relatively low and that the fuels that uses are available a large scale. At the moment it is had already commercial thermal fission reactors , there are also them of fast fission that allow the fuel rearing, although these last ones in much smaller number, with both types of fission nuclear reactors can be obtained a very important contribution to the generation of energy at world-wide level during the time that is necessary so that it is developed, constructs and operates the first commercial fusion reactor. The energy that is generated in the present and future must come from different sources, which require to be reliable, to have little effect on the environment, to have wide reserves of fuels and to be viable from an economic and social point of view, they must be viable and safe. Between possible alternative energies it is counted on the lot, the wind one, the geothermal one, originating of the tides and some others. An energy that must be considered so that it has arrived at his maturity and he is already able to contribute widely to cover the present needs and future it is nuclear energy, as much the originating one of the fission of a heavy centre like obtained when fusing two light centers. On base in the nuclear fuel reserves at world-wide level a simple calculation takes control of the lapse in which energy by means of the nuclear fission in rearing can be generated reactors expresses demonstrating that the time sufficient to finish to the investigation and development of fusion reactors which they generate energy in economic, safe and reliable form. Combining these two options the nuclear energy can be considered the future like for the present and the future with practically null effects in the climatic change. (Author)

  18. Public communication and nuclear energy; La comunicacion publica y la energia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Cornado, A.

    2006-07-01

    The article tries to explain why on occasion the public's perception of nuclear is more negative than of any other form of electricity generation or issue related to this field, when in reality public opinion has been gradually losing interest in nuclear in recent years. In fact, we could say that as nuclear loses its interest, its presence in the media grows in relation to the environmental aspects of electricity generation, of which nuclear form a part. Of the accusations directed at the nuclear industry, probably the most frequent one concerns the lack of transparency and lack of information on its activities. This article shows how the nuclear sector is probably one that generates more and better information on its own business. However, the lack of social acceptance of this activity, and of the energy business in general, is recognized. To solve this, mention is made of the example of France and Finland, where a well planned communication policy, implemented on a sustained basis over time, and the invitation to society to take part in these issues have favored a substantial improvement of public acceptance of electric generation sources, and specifically the nuclear option. The article ends with some recommendations that could be applied to Spain. (Author)

  19. Viabilidade económica da implementação de um reactor nuclear para a produção de energia eléctrica em Portugal

    OpenAIRE

    Pedro, Miguel António de Morais

    2012-01-01

    O presente trabalho tem como objectivo avaliar economicamente e determinar a viabilidade da implementação de um reactor nuclear para produção de energia eléctrica. Faz-se uma abordagem a aspectos da energia nuclear no mundo e em particular a energia nuclear na união europeia, faz-se uma análise sobre a estrutura do sector nuclear em Espanha e o futuro da energia no mundo. É realizada uma análise sobre a energia nuclear em Portugal, são abordados aspectos como o planeamento energético, a local...

  20. Nuclear Cluster Aspects in Astrophysics

    Science.gov (United States)

    Kubono, Shigeru

    2010-03-01

    The role of nuclear clustering is discussed for nucleosynthesis in stellar evolution with Cluster Nucleosynthesis Diagram (CND) proposed before. Special emphasis is placed on α-induced stellar reactions together with molecular states for O and C burning.

  1. Communication techniques and nuclear energy; Tecnicas de comunicacion y energia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Carpintero Santamaria, N.

    2005-07-01

    The paper presents some thoughts on several factors related to nuclear energy and the way they are presented by the mass media, usually provoking controversy to the Spanish society and thus, undermining public acceptance. Some possibilities for boosting nuclear energy among public opinion are suggested, emphasizing the fact that nuclear power is essential because it is both ecologically and economically sound. (Author)

  2. Nuclear energy for environmental protection; A energia nuclear para protecao do meio ambiente

    Energy Technology Data Exchange (ETDEWEB)

    Souza, Jair Albo Marques de

    1992-12-31

    In 1990 nuclear energy supplied about 17% of the total electric power produced in the world, what makes it the third most used power source after coal and hydropower. In this paper the advantages of using nuclear power for generating large quantities of electric power are presented 18 figs., 23 tabs.

  3. Clustering aspects in nuclear structure functions

    CERN Document Server

    Hirai, M; Saito, K; Watanabe, T

    2010-01-01

    For understanding an anomalous nuclear effect experimentally observed for the beryllium-9 nucleus at the Thomas Jefferson National Accelerator Facility (JLab), clustering aspects are studied in structure functions of deep inelastic lepton-nucleus scattering by using momentum distributions calculated in antisymmetrized (or fermionic) molecular dynamics (AMD) and also in a simple shell model for comparison. According to the AMD, the Be-9 nucleus consists of two alpha-like clusters with a surrounding neutron. The clustering produces high-momentum components in nuclear wave functions, which affects nuclear modifications of the structure functions. We investigated whether clustering features could appear in the structure function F_2 of Be-9 along with studies for other light nuclei. We found that nuclear modifications of F_2 are similar in both AMD and shell models within our simple convolution description although there are slight differences in Be-9. It indicates that the anomalous Be-9 result should be explain...

  4. Teaching simulator for divulgation of the nuclear energy; Simulador docente para divulgacion de la energia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Ortega B, M.G.; Gutierrez F, R. [FI-UNAM, DEPFI Campus Morelos (Mexico)] e-mail: cchavez2@cableonline.com.mx

    2003-07-01

    To solicitude of the authorities of the 'Universum' sciences museum of the UNAM, it develops a highly interactive computational system, to provide of information to the population in general about basic principles, uses and benefits of the nuclear energy. The objective is to achieve a better understanding and acceptance of the nuclear technology in our country. The system allows the visualization and simulation of nuclear processes as well as of its applications. The system is divided in three levels: basic, intermediate and simulation. In the basic level multimedia information is included on diverse basic concepts of the nuclear energy. The intermediate level includes the description and operation of some systems of the Laguna Verde nuclear power plant (CNLV). Finally the simulation level contains representative scenarios that the user can control by means of virtual control panels of the main systems of the CNLV. Inside the system a part of interactive games is included with the purpose that the user remembers with more easiness all the concepts and advantages of the nuclear energy mentioned during the previous levels. The system contributes, by means of the development of multimedia computational tools and of simulation, to the popularization of the use and applications of the nuclear energy in Mexico. (Author)

  5. Benefits of using nuclear energy; Os beneficios do uso da energia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Lira, Elda Vilaca

    2015-11-01

    The purpose of this work is to present, especially for high school students, the benefits of the use of nuclear energy, promoting a deeper knowledge of this technology, encouraging critical thinking of students and society around them.

  6. Nuclear energy and economic competitiveness in several normative systems; Energia nuclear y competitividad economica en varios sistemas normativos

    Energy Technology Data Exchange (ETDEWEB)

    Thomas, S. [University of Greenwich, 30 Park Row, London SE10 9LS (United Kingdom)

    2009-07-01

    The serious challenge imposed by the necessity of reducing the gases emission of greenhouse effect in the electric generation sector, it has renovated the interest in the new plants construction of nuclear energy. Nevertheless, since the use of the nuclear energy began to descend ago more of 25 years, it is has speculated continually about the possible nuclear rebirth. Are such predictions based in solid basis or are mere groundless prognostics? The objective of the present document is to analyze the economic aspects of the nuclear energy, to identify the key factors that they allow to determine its competitiveness and to sound the possible markets for the new plants of nuclear energy. To achieve this, it is divided in the following sections: Revision of the current state of the nuclear energy, including the location, the type and capacity of the plants; Identification of the variables that determine the economic situation of the nuclear energy; Revision of the recent predictions and of the economic aspects of the Olkiluoto nuclear power plant of Finland; A revision by market of the possible future of the new nuclear facilities in the coming decade. (Author)

  7. Nuclear Energy and European Union; Energia nuclear y la Union Europea

    Energy Technology Data Exchange (ETDEWEB)

    Picamal, B.

    2010-07-01

    The interest shown by the European Institutions in the energy debates, in which the nuclear energy is included as a key component within the energy mix, is obvious. Climate change and energy supply have pushed some countries to publicly express their interest for developing the nuclear energy. These positions are however in contradiction with some others within the European Union which are a lot more critical towards this type of energy and where face-out policies still prevail. Despite the fact that the use of the nuclear energy will remain within the competence of each Member State, the European Union will continue to play a prominent role in the development of an energy strategy based on a low carbon economy. (Author)

  8. Perception of the nuclear energy in Mexico; Percepcion de la energia nuclear en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Xolocostli M, J.V.; Alonso V, G.; Gomez T, A.M.; Palacios H, J.C. [ININ, Carretera Mexico-Toluca s/n, La Marqesa, 52750 Ocoyoacac, Estado de Mexico (Mexico)]. e-mail: vxm@nuclear.inin.mx

    2007-07-01

    From their beginnings the Nuclear Energy has generated a lot of polemic, since on one hand it was seen as something completely harmful, due to the making of atomic weapons and those effects of the radiation (Hiroshima and Nagasaki). But on the other hand it has been saying that it could be the 'Panacea' of the humanity like an inexhaustible source of energy, this brought that a countless of reactors was built for the electric power production at world level, unfortunately some accidents as that of Chernobyl (Former Soviet Union 1986) as well as the contribution of the media of the fear toward the nuclear energy made that it was formed a barrier of the public opinion toward all that has to do with the nuclear energy, the construction of new power stations one came below and even in some countries the environmentalist organizations achieved their governments to close some power stations. In the last years the concern for the global heating and the climatic change has put in the world calendar the use of the nuclear energy again, by means of the new designs of advanced reactors with more safety measures, more efficient and economic. In several countries the public opinion is looking to the nuclear energy with good eyes, reason by a resurgence is glimpsed from the nuclear energy to great scale, so it is so several countries they have already begun the construction of new advanced reactors ones (Japan, China, Finland) and some included one already has them in operation. In Mexico, it is ignored to certain science which is the real posture of the public opinion with regard to this topic so controversial, reason why it was carried out this study to know the perception of the public in general with regard to this topic, as well as the convenience of enlarging the infrastructure of electric power generation in our country by means of this energy type. (Author)

  9. Kinematics of high-energy nuclear processes; Cinematica de los procesos nucleares de alta energia

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez del Rio, C.

    1972-07-01

    This report is the first draft of one of the chapters of a book being prepared under the title:Topics on Practical Nuclear Physics. It is published as a report because of its immediate educational value and in order to include in its final draft the suggestions of the readers. (Author)

  10. Kinematics of low-energy nuclear processes; Cinematica de los procesos nucleares de baja energia

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez del Rio, C.

    1972-07-01

    This report is the first draft of one of the chapters of a book being prepared under the title: Topics on Practical Nuclear Physics. It is published as a report because of its immediate educational value and in order to include in its final draft the suggestions of the readers. (Author)

  11. Nuclear energy I, Non-energetic applications; Energia Nuclear I, Aplicaciones no energeticas

    Energy Technology Data Exchange (ETDEWEB)

    Lartigue G, J.; Navarrete T, M.; Cabrera M, L.; Arandia, P.A.; Arriola S, H. [Facultad de Quimica, 04510 Mexico D.F. (Mexico)

    1986-07-01

    The nuclear energy is defined as the energy produced or absorbed in the nuclear reactions, therefore, these are divided in endothermic and exothermic. The exothermic nuclear reactions present more interest from the point of view of its applications and they can show in four main forms: radioactivity (from 0 to 4 MeV/reaction; light nucleus fusion ( {approx} 20 MeV/reaction), heavy nucleus fusion ({approx} 200 MeV/reaction) and nucleons annihilation ( {approx} 2000 MeV/reaction). Nowadays only the fission has reached the stage of profitable energetic application, finding the other three forms in research and development. The non-energetic applications of the nuclear energy are characterized by they do not require of prior conversion to another form of energy and they are made through the use of radioisotopes as well as through the use of endothermic reaction caused in particle accelerators. In this work are presented some of the non-energetic applications with its theoretical and experimental basis as well as its benefits of each one. (Author)

  12. Nou enfocament per a l’anàlisi de la controvèrsia no resolta sobre l’energia nuclear

    OpenAIRE

    Diaz Maurin, François; Kovacic, Zora

    2015-01-01

    Un equip d’investigadors de l’ICTA-UAB ha desenvolupat un nou enfocament per estudiar les controvèrsies sobre la governança de les tecnologies, centrant-se en el cas de l’energia nuclear, una de les tecnologies més controvertides i, al mateix temps, més desplegades dels últims 60 anys. Segons els investigadors, la controvèrsia sobre l’energia nuclear pot ser entesa com una sèrie de desajustos entre les expectatives i l’experiència, resultat del desafiament de fer front als alts nivells d’ince...

  13. Nuclear energy through Philately; La energia nuclear a traves de la filatelia

    Energy Technology Data Exchange (ETDEWEB)

    Torres de la Pena, M. T.

    2016-08-01

    Postage stamps, apart from being signs of postage, are a valuable means of communication that reproduces, in mary ways, milestones of history. Postatge stamps have different formats and values, can be printed with different systems (offset, gravure or intaglio) and can also have several uses. Countries have used them to record important cultural, social, historical and scientific events that are often unknown, and generally to promote the image of a country. For this reason, postage stamps disclose international development in different disciplines; in this case, science and nuclear technology. (Author)

  14. Aspects of public opinion research in risk perception studies covering the nuclear field

    Energy Technology Data Exchange (ETDEWEB)

    Tanimoto, Katia Suemi; Hiromoto, Goro, E-mail: ktanimoto@ipen.b, E-mail: hiromoto@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2011-07-01

    A project for site selection and construction of a national radioactive waste repository is underway at the Comissao Nacional de Energia Nuclear. Public acceptance is determinant to the deployment of an undertaking of this size. A major concern regarding the use of nuclear energy are the problems related to safe management of the radioactive waste. For effective communication between decision makers and the public, a mutual understanding of views, as well as attitudes towards risk, is needed. The use of opinions polls is necessary in order to achieve it. This work aims to point out the major aspects to be approached by an opinion poll for the study of risk perception on the candidate regions for repository construction. A risk perception research model is presented, to be applied to the case of radioactive waste disposal, along with theoretical support to the organization and implementation of its structure. (author)

  15. Fundamental aspects of nuclear reactor fuel elements

    Energy Technology Data Exchange (ETDEWEB)

    Olander, D.R.

    1976-01-01

    The book presented is designed to function both as a text for first-year graduate courses in nuclear materials and as a reference for workers involved in the materials design and performance aspects of nuclear power plants. The contents are arranged under the following chapter headings: statistical thermodynamics, thermal properties of solids, crystal structures, cohesive energy of solids, chemical equilibrium, point defects in solids, diffusion in solids, dislocations and grain boundaries, equation of state of UO/sub 2/, fuel element thermal performance, fuel chemistry, behavior of solid fission products in oxide fuel elements, swelling due to fission gases, pore migration and fuel restructuring kinetics, fission gas release, mechanical properties of UO/sub 2/, radiation damage, radiation effects in metals, interaction of sodium and stainless steel, modeling of the structural behavior of fuel elements and assemblies. (DG)

  16. Nuclear energy and non proliferation. The role of the International Atomic Energy Agency; Energia nuclear y no proliferacion. El papel de la Organizacion Internacional de la Energia Atomica

    Energy Technology Data Exchange (ETDEWEB)

    Cooley, J.; Rauf, T.

    2008-07-01

    This article discusses the role of the International Atomic Energy Agency (IAEA) in the prevention of the spread of nuclear weapons. The IAEA verifies States compliance with their non-proliferation commitments through the application of safeguards on their civilian nuclear programmes to ensure that they are being used solely for peaceful purposes. The IAEA safeguards have evolved in the course of five decades and have become an integral part of the international non-proliferation regime and the global security system. To continue to serve the international community, they need to continue to move with the times, especially in light of the renewed interest in nuclear energy. (Author)

  17. Renewability and sustainability aspects of nuclear energy

    Science.gov (United States)

    Şahin, Sümer

    2014-09-01

    Renewability and sustainability aspects of nuclear energy have been presented on the basis of two different technologies: (1) Conventional nuclear technology; CANDU reactors. (2) Emerging nuclear technology; fusion/fission (hybrid) reactors. Reactor grade (RG) plutonium, 233U fuels and heavy water moderator have given a good combination with respect to neutron economy so that mixed fuel made of (ThO2/RG-PuO2) or (ThC/RG-PuC) has lead to very high burn up grades. Five different mixed fuel have been selected for CANDU reactors composed of 4 % RG-PuO2 + 96 % ThO2; 6 % RG-PuO2 + 94 % ThO2; 10 % RG-PuO2 + 90 % ThO2; 20 % RG-PuO2 + 80 % ThO2; 30 % RG-PuO2 + 70 % ThO2, uniformly taken in each fuel rod in a fuel channel. Corresponding operation lifetimes have been found as ˜ 0.65, 1.1, 1.9, 3.5, and 4.8 years and with burn ups of ˜ 30 000, 60 000, 100 000, 200 000 and 290 000 MW.d/ton, respectively. Increase of RG-PuO2 fraction in radial direction for the purpose of power flattening in the CANDU fuel bundle has driven the burn up grade to 580 000 MW.d/ton level. A laser fusion driver power of 500 MWth has been investigated to burn the minor actinides (MA) out of the nuclear waste of LWRs. MA have been homogenously dispersed as carbide fuel in form of TRISO particles with volume fractions of 0, 2, 3, 4 and 5 % in the Flibe coolant zone in the blanket surrounding the fusion chamber. Tritium breeding for a continuous operation of the fusion reactor is calculated as TBR = 1.134, 1.286, 1.387, 1.52 and 1.67, respectively. Fission reactions in the MA fuel under high energetic fusion neutrons have lead to the multiplication of the fusion energy by a factor of M = 3.3, 4.6, 6.15 and 8.1 with 2, 3, 4 and 5 % TRISO volume fraction at start up, respectively. Alternatively with thorium, the same fusion driver would produce ˜160 kg 233U per year in addition to fission energy production in situ, multiplying the fusion energy by a factor of ˜1.3.

  18. Historical aspects of the nuclear right development; Aspectos historicos en el desenvolviminento del derecho nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Puig, Diva E. [Universidad de la Republica, Montevideo (Uruguay). Facultad de Derecho

    1999-04-01

    This paper analyses the historical aspects of the nuclear right development. It makes the evolution of the fundamental principles of nuclear right, in special, the civil responsibility for nuclear damages. (author)

  19. Interview in Radio Educacion on the applications of nuclear energy; Entrevista en Radio Educacion sobre las aplicaciones de la energia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Balcazar G, M

    1991-01-15

    The objective that presides over this interview, is to show before the public the diverse applications that can have the nuclear energy, apart from the warlike aspect and the electric power generation. (Author)

  20. Nuclear electric power safety, operation, and control aspects

    CERN Document Server

    Knowles, J Brian

    2013-01-01

    Assesses the engineering of renewable sources for commercial power generation and discusses the safety, operation, and control aspects of nuclear electric power From an expert who advised the European Commission and UK government in the aftermath of Three Mile Island and Chernobyl comes a book that contains experienced engineering assessments of the options for replacing the existing, aged, fossil-fired power stations with renewable, gas-fired, or nuclear plants. From geothermal, solar, and wind to tidal and hydro generation, Nuclear Electric Power: Safety, Operation, and Control Aspects ass

  1. Portfolio of patents after the Brazilian Innovation Act: the case of the Comissao Nacional de Energia Nuclear - CNEN (Brazilian National Nuclear Energy Commission)

    Energy Technology Data Exchange (ETDEWEB)

    Pereira, Gustavo Jose; Guimaraes, Regia Ruth Ramirez; Perry, Katia da Silva Peixoto, E-mail: pereira@cdtn.br, E-mail: rrrg@cdtn.br, E-mail: kspp@cdtn.br [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil); Teruya, Dirceu Yoshikazu, E-mail: teruya@inpi.gov.br [Instituto Nacional da Propriedade Industrial (INPI), Rio de Janeiro, RJ (Brazil)

    2013-07-01

    The process of technological development is due to the need to promote a solution to a particular problem of agents, compete with products and/or processes on the international market and to promote scientific advancement. Thus, the patent system is a repository of knowledge for protection, for promotion of diffusion through licensing agreements and an indicator of technological development. In 2004, the Brazilian Government enacted the Brazilian Innovation Act and the mechanisms were improved for cooperation between firms and public education, science and technology organisations and also promoted the commercialisation of technology produced by public education, science and technology organisations and the mandatory establishment of Technology Transfer Offices. The Comissao Nacional de Energia Nuclear (CNEN) is a federal agency responsible for basic and applied research in the field of nuclear technology and has used the patent system since the 1980s to protect its knowledge. With the advent of the Innovation Act in 2004, there was a significant boost in requests for patents in CNEN which also established an internal set of normative acts and created a System of Innovation Management and Technology Innovation Offices in its research institutes to support management and dissemination of knowledge. The aim of this case study is to present the profile of the requests for patents by CNEN before and after the enactment of the Brazilian Innovation Act covering the period of time between 1980 and 2010. (author)

  2. The nuclear energy in the seawater desalination; La energia nuclear en la desalacion de agua de mar

    Energy Technology Data Exchange (ETDEWEB)

    Moreno A, J.; Flores E, R.M. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    2004-07-01

    In general, the hydric resources of diverse regions of the world are insufficient for to satisfy the necessities of their inhabitants. Among the different technologies that are applied for the desalination of seawater are the distillation processes, the use of membranes and in particular recently in development the use of the nuclear energy (Nuclear Desalination; System to produce drinkable water starting from seawater in a complex integrated in that as much the nuclear reactor as the desalination system are in a common location, the facilities and pertinent services are shared, and the nuclear reactor produces the energy that is used for the desalination process). (Author)

  3. Nuclear structure aspects in A approximately 90

    Energy Technology Data Exchange (ETDEWEB)

    Bucurescu, D.; Constantinescu, G.; Cutoiu, D.; Ivascu, M.; Zamfir, N.V.; Avrigeanu, M.

    1981-01-01

    A systematic review of the experimental studies on some neutron deficient nuclei in the A approximately 90 region performed at the Bucharest FN tandem is presented. After a brief account of the measurements, several transitionality aspects are evidenced, like a change of structure in the odd Sr isotopes from N = 48 to N = 46 and the occurence of decoupled g 9/2 bands. The description of these characteristics is discussed in connection with the triaxial rotor, with the VMI model, as well as the cluster-vibration and the interacting boson-fermion model. A systematics of the B(E2) values for the 8/sub 1//sup +/ state in the N = 46 isotones is also presented. 12 references.

  4. The nuclear energy in debate. Myths, realities and climatic changes; A energia nuclear em debate. Mitos, realidades e mudancas climaticas

    Energy Technology Data Exchange (ETDEWEB)

    Matthes, Felix; Rosenkranz, Gerd; Bermann, Celio (orgs.)

    2003-07-01

    This study argues myths and the truths that involve nuclear energy: on the one hand, the universal issue on the nuclear energy and its supposed contribution for the global warming reduction, and another one, there are many lower-risk options available to fight against climate change. Investing in nuclear energy carries not only considerable health, financial and security risks, it may also prove to be a dangerous lock-in and dead end. Twenty years after the nuclear disaster of Chernobyl, any attempts by the nuclear industry to celebrate its revival and to paint itself as the solution to climate change should be rejected. Policy makers around the world should learn from its people, who largely resist the use of nuclear energy. In this context the authors firmly believe that nuclear energy is no answer to climate change. A short-sighted renaissance of nuclear energy would require considerable amounts of public money, which should rather be invested in the development and deployment of renewable energy technologies and energy efficiency measures.

  5. The Nuclear and Safety Council and the Nuclear Energy Agency; El Consejo de Seguridad Nuclear y la Agencia de Energia Nuclear. Una estrecha colaboracion

    Energy Technology Data Exchange (ETDEWEB)

    Martinez Ten, C.

    2008-07-01

    On the occasion of the fiftieth anniversary of creation of the Nuclear Energy Agency (NEA), specialised agency within the Organisation for Economic Cooperation and Development (OECD), the President of the Spanish Nuclear Safety Council (CSN), summarizes the activities of the NEA throughout its life up to now. Since it started up, the CSN has worked closely with this international organization, as a reflection of the strong commitment, shared by both institutions, each one in its field, to reach the highest levels in the regulation which contributes decisively to the nuclear safety of the Spanish nuclear power plants. (Author)

  6. Human factors aspects of advanced instrumentation in the nuclear industry

    Energy Technology Data Exchange (ETDEWEB)

    Carter, R.J.

    1989-01-01

    An important consideration in regards to the use of advanced instrumentation in the nuclear industry is the interface between the instrumentation system and the human. A survey, oriented towards identifying the human factors aspects of digital instrumentation, was conducted at a number of United States (US) and Canadian nuclear vendors and utilities. Human factors issues, subsumed under the categories of computer-generated displays, controls, organizational support, training, and related topics were identified. 20 refs., 2 tabs.

  7. Public perception of nuclear power in Mexico after Fukushima; Percepcion publica de la energia nuclear en Mexico despues de Fukushima

    Energy Technology Data Exchange (ETDEWEB)

    Palacios, J. C.; Alonso, G.; Ramirez, R., E-mail: javier.palacios@inin.gob.mx [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2015-09-15

    This section presents some of the results of four studies on international public opinion about nuclear energy, the first one made several years before the Fukushima accident, conducted in 2005 by the IAEA through the company Globe Scan Inc. The second study was conducted by the same company in 2011 a few months after the Fukushima accident, including also corresponding results to two studies conducted by the British firm Ipsos Mori (of years 2011 and 2012 respectively). Finally three studies conducted by the Instituto Nacional de Investigaciones Nucleares (ININ) in 2006, 2008 and 2013 are presented. From the results of these studies was determined that the Fukushima accident itself had a negative effect on public opinion in Mexico, as throughout the world, but this trend is reversing. Also it found that public opinion in Mexico on using reactors to generate electricity is favorable, although not still has much support from the government for the construction of new nuclear power plants. (Author)

  8. The peaceful use of nuclear energy: National legal implications; El uso pacifico de la energia nuclear: implicaciones juridicas nacionales

    Energy Technology Data Exchange (ETDEWEB)

    Guadarrama A, M.E

    2000-07-01

    This work analyses in broad sense the legal regime about the use, exploitation and improvement of the nuclear energy in Mexico and its relationship with the International confines . It was realized the study of the elemental concepts referred about the subject and it is described briefly the evolution of the figure in the frame of as National as International laws. The objective of this work finds its basis on the provisions which contemplate the in force statutory law of the 27 Constitutional article concerning Nuclear energy but before considering the legal nature and the main characteristics of this normative instrument. (Author)

  9. NATO Advanced Study Institute on New Aspects of Nuclear Dynamics

    CERN Document Server

    Huberts, P

    1989-01-01

    The 1988 Summer School on New Aspects of Nuclear Dynamics took place in the style that by now has become a tradition: a series of lectures by well known scientists on modem topics of nuclear physics, where special emphasis is placed on the didactic aspects of the lectures. In the past few years, we have witnessed a rapid evolution of the field of nuclear physics towards novel directions of research. This development is accompanied by the construction of some of the largest experimental facilities ever built for nuclear research. The subjects covered by the Summer School focussed on two main issues currently under active investigation and which will be pursued with the new facilities: the transition from nucleonic to quark degrees of freedom in the decription of nuclear reactions, and the behavior of nuclear matter as one approaches extreme densities and temperatures. These topics in many respects go beyond traditional nuclear physics and the speakers therefore also included high energy physicists. From the re...

  10. Methodology for gathering nuclear energy literature; Metodologia de coleta para alimentacao de uma base de dados em energia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Lambert, Maria B.M.A.

    1996-12-31

    Several activities related to gathering information and documents -conventional and non-conventional primary literature - to include in a bibliographic nuclear energy database are described and arranged, using as model the communication and information process in science and technology and the analysis of the indexed documents in the database. Methodological steps are identified and a collecting system model is presented. 112 refs., 4 tabs.

  11. Information dissemination in nuclear energy: ideology, speech and language; Divulgacao da informacao em energia nuclear: ideologia, discurso e linguagem

    Energy Technology Data Exchange (ETDEWEB)

    Ramos, Marcos Goncalves

    1992-07-01

    The social impact of Goiania nuclear accident is analysed from a semiotic investigation upon papers issued on popular magazines, newspapers and scientific periodicals. Also the communication of Science Information is discussed through three basic models: diffusionist, bibliometric and cultural perspectives. Divulgation and diffusion process of scientific information are reviewed on the bases of theory of representation and theory of sign. The relationship between energy and society is discussed though a compared analysis upon the information sources available to public and scientific community. (author)

  12. Particle accelerators and nuclear energy: the challenge of reliability; Acceleradores de particulas y energia nuclear: el desafio de la fiabilidad

    Energy Technology Data Exchange (ETDEWEB)

    Brucker, R.; Fernandez Ramos, P.

    2011-07-01

    High energy particle accelerators, that used to serve a purpose only in fundamental research, will soon be used in industrial applications of nuclear energy. In this context, they will be submitted to unprecedented (as far as such machines are concerned) reliability requirements. In order to meet them, reliability studies need to be carried out. This article describes the experience gained by Empresarios Agrupados in that field (with the Eurotrans and Ifmif projects) and presents their future activities in the framework of the Myrrha project, that is aimed at building the first ADS reactor in the world. (Author)

  13. A brief comparative study of the wind and nuclear energy; Um breve estudo comparativo entre as energias eolica e nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Flores, Tarcisio Santos [Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina, MG (Brazil). Inst. de Ciencia e Tecnologia

    2015-07-01

    It is apparent the human need to use electricity in the current globalized world. And along with the social and industrial and beyond the everyday comfort evolution came the abuse of power. Aware that Brazil is used as an energy source originating from hydroelectric and that it does not include all domestic demand, should be studied energy sources that can assist it. Two clean and cheap energy alternatives which can contribute to reducing the environmental impacts such as global warming and water shortages are wind and nuclear energy. Which again, exhibit ideal characteristics to serve as alternative sources for electricity production, mainly in the dry season. (author)

  14. Alcohol, biomass energy: technological and economical aspects of production; Alcool, energia da biomassa: aspectos tecnologicos e economicos da producao

    Energy Technology Data Exchange (ETDEWEB)

    Ometto, Joao Guilherme Sabino [Cooperativa dos Produtores de Acucar, Cana e Alcool do Estado de Sao Paulo Ltda. (COOPERSUCAR), Piracicaba, SP (Brazil)

    1993-12-31

    This paper presents some technological and economical aspects of sugar cane and alcohol production in Brazil since 1975 until nowadays. The evolution of their production is analysed and the relationship between cost-benefit and ethanol consumption is discussed 13 figs., 11 tabs.

  15. Safety aspects of nuclear waste disposal in space

    Science.gov (United States)

    Rice, E. E.; Edgecombe, D. S.; Compton, P. R.

    1981-01-01

    Safety issues involved in the disposal of nuclear wastes in space as a complement to mined geologic repositories are examined as part of an assessment of the feasibility of nuclear waste disposal in space. General safety guidelines for space disposal developed in the areas of radiation exposure and shielding, containment, accident environments, criticality, post-accident recovery, monitoring systems and isolation are presented for a nuclear waste disposal in space mission employing conventional space technology such as the Space Shuttle. The current reference concept under consideration by NASA and DOE is then examined in detail, with attention given to the waste source and mix, the waste form, waste processing and payload fabrication, shipping casks and ground transport vehicles, launch site operations and facilities, Shuttle-derived launch vehicle, orbit transfer vehicle, orbital operations and space destination, and the system safety aspects of the concept are discussed for each component. It is pointed out that future work remains in the development of an improved basis for the safety guidelines and the determination of the possible benefits and costs of the space disposal option for nuclear wastes.

  16. Analysis of opinion about nuclear energy and sustainability in a graduate level population; Analisis de opinion sobre la energia nuclear y sustentabilidad en una poblacion de nivel superior

    Energy Technology Data Exchange (ETDEWEB)

    Meza L, C.D.; Arredondo S, C. [IPN, ESFM, 07738 Mexico D.F. (Mexico)]. e-mail: angie2esa@hotmail.com

    2007-07-01

    The Mexican society has a modest knowledge of the nuclear energy, even at the participant students of superior education level in this survey is finds a scarce compression with regard to their obtaining, use and manage. As a result of the lack of interest of the same society and at the problems that know each other like they are: the pollutants that it produces those nuclear waste and the possible use or warlike end, a fear is believed about this energy type. In the Superior School of Physics and Mathematics there is the possibility to make studies so much at master degree level in the one fear of the nuclear energy and the applications of the same one in peaceful uses. However, particularly the studies at master level seem to be immersed in a crisis that requires of different supports to be resolved. For all it previous was thought in carrying out a survey inside a student population with superior level to know the opinion and the knowledge on the nuclear energy in Mexico. In this work the results of the survey are analyzed with the purpose of to determine which is the knowledge of the community mentioned regarding the other energy types, the impact that they have these in the environment, the sustenance of the same ones and in particular on knowledge about the nuclear energy considering the aspects before mentioned. With base had said analysis settles down that the interviewed community knows very little about the nuclear energy but they show interest to study and to obtain bigger information about the same one, for what is very important to diffuse but and better information on the nuclear energy to the population's strata, because it is of supposing that the rest of the population has erroneous information on the nuclear energy. In particular for the community of the Superior School of Physics and Mathematics the diffusion of all the benefits of the peaceful applications of the nuclear energy, including the capacity to generate enormous quantities and

  17. Behavior of the Energy Secretary in working matter: the case of workers exposed to nuclear energy (ionizing radiations); Actuacion de la Secretaria de Energia en materia laboral: el caso de los trabajadores expuestos a energia nuclear (radiaciones ionizantes)

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez J, G

    2006-07-01

    Mexico, as many other countries, it gives to this energy resource multiple uses in such activities as: the electric power generation in nuclear central, the industry, the medicine and the research. In the one acting of the referred activities intervenes individuals that, in reason of their work, they have contact with this energy type, which is potentially dangerous for the health in reason of the radioactivity flight. Although those workers are 'aided' for a series of relative standards to the observance of safety, hygiene and protection measures in the event of work risks, the technicity that is required to determine the potential risk that it is generated with the handling of radioactive products it makes that single specialized in the matter authorities can evaluate and, therefore, to watch over the safety conditions in those that work is developed. In that virtue, with this investigation it is sought to demonstrate that the Secretary of Energy, through a dis concentrated specialized organ and endowed with technical autonomy denominated National Commission of Nuclear Safety and Safeguards, it is a dependence that in their performance like Regulator Organ in the matter, intervenes in the labor relationships circles, being, therefore, an authority in work matter. By this way, the development of the present study is made in the following manner: In the first chapter indispensable aspects are approached to locate to the authorities inside the mark of the power exercise by the part of the State through their diverse organs; topics like jurisdiction and competition are treated for later to analyze the structure, according to the Mexican Administrative Law, of the Federal Executive Organ, referring a brief analysis of the application of work standards for diverse administrative authorities to determine of their multiple intervention and important performance in the labor relationships. In the second it is analyzed the structure of the National Commission of

  18. Nuclear Structure aspects of gamma decay from giant resonances

    Directory of Open Access Journals (Sweden)

    Bracco A.

    2014-01-01

    Full Text Available The gamma decay of the giant dipole resonance (including its tail region is an important tool to probe the properties of these states, and thus to test the predictions of mean field theories. This paper focuses on two main aspects concerning the electric dipole excitation in nuclei. These are the study of the isospin character of the low energy tail of the Giant Dipole Resonance (GDR, the so-called Pygmy resonance, and the isospin mixing of nuclear systems at finite temperature. In the first case, the Pygmy resonance has been populated in the inelastic scattering reaction 17O+124Sn at 20 MeV/u. Its gamma decay has been measured using the AGATA Demonstrator and an array of 8 large volume LaBr3:Ce scintillators. In the second case, the gamma decay of the GDR in thermalized nuclear systems, formed in fusion evaporation reactions, has been used to investigate the isospin mixing in 80Zr. For this work the reactions 40Ca+40Ca at 3.4 MeV/u and 37Cl +44Ca at 2.6 MeV/u were used.

  19. Nuclear Data for Safe Operation and Waste Transmutation: ANDES (Accurate Nuclear Data for nuclear Energy Sustainability); Datos nucleares para la operacion segura y la transmutacion de residuos: Andes (Datos Nucleares Precisos para la Sostenibilidad de la Energia Nuclear)

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez, E. M.

    2014-07-01

    Nuclear research within the 7th Framework Program (FP7 and FP7+2) of EURATOM has devoted a significant fraction of its efforts to the development of advanced nuclear fuel cycles and reactor concepts, mainly fast reactors, aiming to improve the long term sustainability by reduction of the final wastes, optimal use of natural resources and improvement of safety in the present and future nuclear installations. The new design need more accurate basic nuclear data for isotopes, like minor actinides, potentially playing an important role in the operation, fuel concept, safety or final wastes of those reactors and fuel cycles. Four projects, ANDES, ERINDA, EUFRAT and CHANDA, supported by EURATOM within the FP7 and FP7+2, have put together most of the European Nuclear Data community to respond efficiently and in a coordinated way to those needs. This paper summarizes the objectives, and main achievements of ANDES, the project responsible for most of the measurements and technical achievements that was coordinated by CIEMAT. Indeed, CIEMAT has coordinated the nuclear data R and D projects within EURATOM during the last 7 years (NUDATRA domain of EUROTRANS, and ANDES) and will continue this coordination in the CHANDA project till 2017. (Author)

  20. Em nome da autonomia e do desenvolvimento: Brasil e a não-proliferação, o desarmamento e os usos pacíficos da energia nuclear

    Directory of Open Access Journals (Sweden)

    Diego Santos Vieira de Jesus

    2012-01-01

    Full Text Available O objetivo é examinar as posições defendidas pelo Brasil quanto à não-proliferação, ao desarmamento e aos usos pacíficos da energia nuclear neste início de século. O argumento central aponta que o Brasil almeja pressionar os Estados nuclearmente armados para que cumpram suas obrigações de desarmamento, enquanto procura preservar a autonomia para desenvolver atividades nucleares pacíficas.   The objective is to examine the positions adopted by Brazil on nuclear non-proliferation, disarmament and peaceful uses of nuclear energy in the beginning of this century. The central argument indicates that Brazil aims to pressure the nuclear-weapon states to fulfill their disarmament obligations, while seeks to preserve autonomy to develop peaceful nuclear activities.

  1. O Processo de Avaliação de Estagiários da Comissão Nacional de Energia Nuclear - CNEN: focalizando seu instrumento

    Directory of Open Access Journals (Sweden)

    Regina Márcia Rocha Lidington

    2010-01-01

    Full Text Available O artigo apresenta o processo avaliativo e os resultados da avaliação do instrumento utilizado para a avaliação de estagiários da Comissão Nacional de Energia Nuclear - CNEN, denominado Avaliação do Estágio pelo Supervisor. A avaliação se concentrou na definição dos cinco Conceitos utilizados para avaliar os nove Aspectos que compõem o instrumento, buscando estabelecer Padrões capazes de minimizar o efeito das interferências subjetivas capazes de comprometer a avaliação do estagiário. Foram utilizadas as abordagens Centrada nos Consumidores, Centrada em Especialistas e Responsiva. Participaram do processo avaliativo os três públicos interessados: Ex-estagiários, Orientadores/Supervisores de Estágio e profissionais da área de Recursos Humanos que atuam no gerenciamento do Programa de Estágios, na Instituição. Os resultados do estudo englobam sugestões de ordem quantitativa e qualitativa para cada um dos Padrões propostos no instrumento.

  2. Modern new nuclear fuel characteristics and radiation protection aspects.

    Science.gov (United States)

    Terry, Ian R

    2005-01-01

    The glut of fissile material from reprocessing plants and from the conclusion of the cold war has provided the opportunity to design new fuel types to beneficially dispose of such stocks by generating useful power. Thus, in addition to the normal reactor core complement of enriched uranium fuel assemblies, two other types are available on the world market. These are the ERU (enriched recycled uranium) and the MOX (mixed oxide) fuel assemblies. Framatome ANP produces ERU fuel assemblies by taking feed material from reprocessing facilities and blending this with highly enriched uranium from other sources. MOX fuel assemblies contain plutonium isotopes, thus exploiting the higher neutron yield of the plutonium fission process. This paper describes and evaluates the gamma, spontaneous and alpha reaction neutron source terms of these non-irradiated fuel assembly types by defining their nuclear characteristics. The dose rates which arise from these terms are provided along with an overview of radiation protection aspects for consideration in transporting and delivering such fuel assemblies to power generating utilities.

  3. Theoretical Aspects of Science with Radioactive Nuclear Beams

    CERN Document Server

    Dobaczewski, J; Dobaczewski, Jacek; Nazarewicz, Witold

    1997-01-01

    Physics of radioactive nuclear beams is one of the main frontiers of nuclear science today. Experimentally, thanks to technological developments, we are on the verge of invading the territory of extreme N/Z ratios in an unprecedented way. Theoretically, nuclear exotica represent a formidable challenge for the nuclear many-body theories and their power to predict nuclear properties in nuclear terra incognita. It is important to remember that the lesson learned by going to the limits of the nuclear binding is also important for normal nuclei from the neighborhood of the beta stability valley. And, of course, radioactive nuclei are crucial astrophysically; they pave the highway along which the nuclear material is transported up in the proton and neutron numbers during the complicated synthesis process in stars.

  4. The youths in the impulse of the nuclear energy in Mexico; Los jovenes en el impulso de la energia nuclear en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Contreras R, A. [ININ, Departamento de Tecnologia de Materiales, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico); Sanchez J, J., E-mail: aida.contreras@inin.gob.mx [Comision Nacional de Seguridad Nuclear y Salvaguardias, Dr. Jose Ma. Barragan No. 779, Col. Narvarte, 03020 Mexico D. F. (Mexico)

    2013-10-15

    Around the world the industry and the nuclear development have taken a very important paper in different boundaries like: the medicine, the research, the industry and the electric power generation. However, during the decade of the 90s the technology and the nuclear industry had suffered a decrement in their popularity. After the accident of the nuclear power plant of Chernobyl and the most recent event in the nuclear power plant of Fukushima this popularity has been affected. For all this is that the work of informing to the people on the peaceful uses of the nuclear energy taking relevance. Visualizing this necessity the Young Association for the Nuclear Energy in Mexico, is founded in March 8, 2003 having a mission: To unite the enthusiastic youths professionals and students that believe in the development of the research and that they want to work in a joined way in the problems involved with the technological and scientific development of the country in the nuclear ambit, as well as in their personal achievement. The association has always impelled the related topics with the nuclear development in Mexico and in the world, imparting courses and chats in several universities and institutions, by means of a simple language to be able to go to children and the people in general. In the diffusion work that carries out the association, has an important collaboration and representation with the Mexican Nuclear Society, the North American Young Generation in Nuclear, the International Youth Nuclear Congress and the World Nuclear University. (Author)

  5. The public perception of the nuclear energy in Eastern Europe: past and present; La percepcion publica de la energia nuclear en Europa del Este: pasado y presente

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez, A.; Jimenez, G.

    2010-07-01

    In Eastern Europe, people associate nuclear energy to the idea of progress, and prestige of the nuclear industry is very high. This article sets the use of nuclear technology to produce energy in a historical context that is particular to these countries. Results of interviews and surveys are analyzed in order to provide an insight on the level of acceptance among population. (Author)

  6. Theoretical and Practical Aspects of ‘Wasteless’ Nuclear Energy

    Directory of Open Access Journals (Sweden)

    P. Anggraita

    2008-07-01

    Full Text Available The problem associated with the current NPP is the generation of nuclear waste and some elements in the waste have very long time of radioactivity. This paper reviews some concepts of nuclear energy generation with less nuclear waste. A concept of accelerator driven system (ADS or energy amplifier (EA was proposed by Carlo Rubbia, recipient of 1984 Nobel Prize in particle physics. The system is supposed to generate nuclear energy with radioactive waste of much less and shorter lifetime than those generated by present generation of nuclear power reactors. Less radioactive waste will also be generated by fusion reactions, either in hot fusion of high temperature plasma confined in a very strong magnetic field, or in cold fusion conceptually happens in muon-catalytic and lattice-trap fusions. A concept of neutronless nuclear reaction, hence activating no radioisotopes, to generate nuclear power was proposed. Present nuclear power reactors based on fission are also the source of very large number of electron neutrinos, which can be used to study neutrino oscillations.

  7. Some aspects of the nuclear fission process; Quelques aspects du processus de fission nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Netter, F. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1961-07-01

    In the following report one can find first a short general view on the present situation of our knowledge concerning the nuclear fission process, namely on the nucleus going through the saddle-point. Then there are some aspects connected with the excitation energy of the fissioning nucleus. The measurements made at Saclay on the fast neutron fission cross-section of U{sup 233}, U{sup 235}, Pu{sup 239}, U{sup 238} are described at the beginning of this work. It appears that for U{sup 233} there is some characteristic shape modulation of the cross-section curve, in relation with the collective excited state of the deformed nucleus at the saddle-point. Good evidence of this is also given by the study of the relative fission rate with emission of long-range particles; it appears also that this ternary fission rate does not change substantially for neutron between thermal energy and 2 MeV, but that is very lower for the compound nucleus U{sup 239} than for even-even compound nuclei. At the end there are some experiments on the strong 4,5 MeV gamma-ray originated by slow neutron absorption in U{sup 235}. Time-of-flight device is used to establish that this 4,5 MeV gamma-ray seems mostly connected with radiative capture. (author) [French] Le present travail debute par un apercu de l'etat actuel de nos connaissances sur le processus de fission nucleaire, notamment sur le passage par le point-seuil. Puis sont evoques des aspects lies au niveau d'energie d'excitation auquel est porte le noyau qui subit la fission. Les mesures de sections efficaces de fission induite dans {sup 233}U, {sup 235}U, {sup 239}Pu et {sup 238}U par des neutrons rapides effectuees a Saclay sont decrites en premier lieu; elles font apparaitre pour {sup 233}U une ondulation caracteristique du role des etats collectifs d'excitation du noyau deforme au point-seuil. Des experiences sur la fission avec emission de particules de long parcours confirment cet aspect tout en demontrant que

  8. Design aspects and conservation of roads in the saving of energy; Aspectos de diseno y conservacion de carreteras en el ahorro de energia

    Energy Technology Data Exchange (ETDEWEB)

    Lopez Cajun, Carlos S.; Aguerrebere Salido, Roberto [Instituto Mexicano del Transporte, Queretaro (Mexico)

    1992-12-31

    In this paper the effects that on the fuel consumption the roads have for their slopes and roughness are presented. A mathematical model is presented which shows the relationship between the slope, the roughness coefficient and the required power to overcome the corresponding resistance; the former in order to predict the fuel consumption and therefore, the potential level of energy saving corresponding to this item. [Espanol] En este trabajo se presentan los efectos que sobre consumo de combustible se tienen, debido a las pendientes y rugosidades de las carreteras. Se presenta un modelo matematico que muestra la relacion entre la pendiente, el coeficiente de rodamiento y la potencia requerida para vencer las resistencias correspondientes; lo anterior con el fin de predecir el consumo de combustible y, por lo tanto, los niveles potenciales de ahorro de energia correspondientes a este rubro.

  9. Nuclear energy: exit or revival? International aspects; Energie nucleaire: sortie ou relance? Aspects internationaux

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-11-01

    This colloquium took place less than 1 year after the decision of the US of revival of their nuclear program. Thus the international context has changed, even if nuclear contestation remains as strong as in the past. Among governments, some positions preach the banishment of nuclear energy while others consider the nuclear option as the only solution to meet the growing up energy demand and the future environmental and economical stakes. This report makes a synthesis of the different talks given by the participants during the 3 round tables of the colloquium on the future of nuclear energy: the ecological stake, the democratic stake, and the energy policy stake. Four talks of French government representatives open and conclude the debates of the different round tables. (J.S.)

  10. Some Aspects of Nuclear Structure in Relativistic Approach

    Institute of Scientific and Technical Information of China (English)

    MAZhong-Yu; RONGJian; CAOLi-Gang; CHENBao-Qiu; LIULing

    2004-01-01

    The nucleon effective interaction in the nuclear medium is investigated in the framework of the DiracBrueckner-Hartree-Fock (DBHF) approach. A new decomposition of the Dirac structure of nucleon self-energy in the DBHF is adopted for asymmetric nuclear matter. The properties of finite nuclei are investigated with the nucleon effective interaction. The agreement with the experimental data is satisfactory. The relativistic microscopic optical potential in asymmetric nuclear matter is investigated in the DBHF approach. The proton scattering from nuclei is calculated and compared with the experimental data. A proper treatment of the resonant continuum for exotic nuclei is studied. The width effect of the resonant continuum on the pairing correlation is discussed. The quasiparticle relativistic random phase approximation based on the relativistic mean-field ground state in the response function formalism is also addressed.

  11. The dilemmas of nuclear energy in Spain; Los dilemas de la energia nuclear en Espana. Alargamiento de la vida de las centrales y nuevas inversiones

    Energy Technology Data Exchange (ETDEWEB)

    Aranzadi, C.

    2008-07-01

    This article reviews the economic basis of some controversial political choices concerning the future of nuclear energy in Spain: authorisation or refusal of existing nuclear power plants life extension and investment in new ones. These decisions are to be taken in an environment characterised by a reluctant public opinion that feel uninformed and whose risk perception differs deeply from experts assessment, but prefers not to be consulted. (Author) 19 refs.

  12. The waste originating from nuclear energy peaceful applications and its management; Os rejeitos provenientes de aplicacoes pacificas da energia nuclear e o seu gerenciamento

    Energy Technology Data Exchange (ETDEWEB)

    Souza, Jair Albo Marques de [E-mail: jairalbo at ax.apc.org (Brazil)] [and others

    1997-05-01

    This work presents the waste originating from nuclear energy and its management. It approaches the following main topics: nature and classification of the wastes; security requirements to the waste management; state of the art related to the wastes derivates of the uses of the nuclear energy; wastes in the fuel cycle; wastes of the industrial, medical and research and development applications; costs of the waste management.

  13. International nuclear proliferation: multilateral diplomacy and regional aspects

    Energy Technology Data Exchange (ETDEWEB)

    Kapur, A.

    1979-01-01

    Confidential interviews with about 200 officials at 18 nuclear research sites around the world form the background for this discussion of the proliferation issues as they affect the Nuclear Non-Proliferation Treaty (NPT). Critics of the NPT cite its narrow focus on horizontal proliferation and its failures in the areas of vertical proliferation, nuclear technology transfers, heavy-water-reactor systems, and safeguards. The international negotiations necessary to resolve these issues and the difficulty of reaching a global consensus indicate a need to restructure the U.S. decision process before diplomacy can progress. The book discusses the history and nature of proliferation and its relationship to multinational diplomacy; the problems of permanent and workable safeguards; and regional political ramifications in the creeping dependencies of South Asia, apartheid in South Africa, militarization in Japan, and the nuclearization of Brazil and Argentina. The analysis concludes that central issues were not settled by the NPT and that U.S. failures to speak without consulting allies may mean that a bilateral rather than multinational approach should be tried. 105 references, 5 figures, 12 tables. (DCK)

  14. Germany: of the nuclear energy expansion to the structure for their gradual abandonment; Alemania: de la expansion de la energia nuclear a la estructura para su abandono gradual

    Energy Technology Data Exchange (ETDEWEB)

    Mez, L. [Frei Universitat Berlin, Environmental Policy Research Centre, Thielallee 47, 14195 Berlin (Germany)

    2009-07-01

    This work exposes a panorama of the German nuclear industry, where the investment in this sector began around the fifty, having great peak during the period 1968 at 1989. Causes like a poor electricity demand, the over capacity and a persistent controversy among the public opinion for the nuclear energy use, stop the expansion from this industry to the little time of established. In contrast with the legal situation in most of the countries, in Germany the operation licences were granted without it limits of time. Nevertheless, the operation expectation was estimated inside a range of 20 to 40 years, depending in particular on the service life of the renovation parts. Taking into account these data, seven nuclear power plants of those that have already operated for 20 years or more, are about to confront expensive reconstructions or the closing in the following five years; while other seven will be closed in the subsequent 10 or 15 years. While the federal politicians and their directive went favorable until recent time in general to the extended use of nuclear energy, some authorities of the states became more restrictive when interpreting the allowed forecasts, what has generated continuous differences and regulatory uncertainty. In consequence, the facilities in operation gradually have shown interest in reaching agreements with the government about the nuclear politics, by means of the regulations reestablishment and one calculus linked at the costs. In spite of the many and constant judgments of the public opinion, the federal nuclear politics was up to 1998 on the side of the alliance pro nuclear and back to the industry by means of multiple fiscal and regulatory privileges. This official position was reverted by first time after the federal elections of that year, when a new red-green federal government announcement the gradual retirement of the nuclear energy of Germany. That coalition pact among the Democratic Social parties (red) and green

  15. Scientific aspects of the Tohoku earthquake and Fukushima nuclear accident

    Science.gov (United States)

    Koketsu, Kazuki

    2016-04-01

    We investigated the 2011 Tohoku earthquake, the accident of the Fukushima Daiichi nuclear power plant, and assessments conducted beforehand for earthquake and tsunami potential in the Pacific offshore region of the Tohoku District. The results of our investigation show that all the assessments failed to foresee the earthquake and its related tsunami, which was the main cause of the accident. Therefore, the disaster caused by the earthquake, and the accident were scientifically unforeseeable at the time. However, for a zone neighboring the reactors, a 2008 assessment showed tsunamis higher than the plant height. As a lesson learned from the accident, companies operating nuclear power plants should be prepared using even such assessment results for neighboring zones.

  16. NUCLEAR ENERGY COMMISSION, HIGHER COUNCIL OF RESEARCH, AND THE CENTER OF RESEARCH IN PHYSICS IN MADRID, SPAIN.

    Science.gov (United States)

    The report gives an account of a liasion visit to three institutions in Madrid: the Junta de la Energia Nuclear (JEN), Spain’s Nuclear Energy...and controls essentially all aspects of scientific research in Spain, and the Centro de Investigaciones Fisicas (CIF) ’Leonardo Torres Quevedo,’ a

  17. Geological safety aspects of nuclear waste disposalin in Finland

    Energy Technology Data Exchange (ETDEWEB)

    Ahonen, L.; Hakkarainen, V.; Kaija, J.; Kuivamaki, A.; Lindberg, A.; Paananen, M.; Paulamaki, S.; Ruskeeniemi, T., e-mail: lasse.ahonen@gtk.fi

    2011-07-01

    The management of nuclear waste from Finnish power companies is based on the final geological disposal of encapsulated spent fuel at a depth of several hundreds of metres in the crystalline bedrock. Permission for the licence requires that the safety of disposal is demonstrated in a safety case showing that processes, events and future scenarios possibly affecting the performance of the deep repository are appropriately understood. Many of the safety-related issues are geological in nature. The Precambrian bedrock of Finland has a long history, even if compared with the time span considered for nuclear waste disposal, but the northern location calls for a detailed study of the processes related to Quaternary glaciations. This was manifested in an extensive international permafrost study in northern Canada, coordinated by GTK. Hydrogeology and the common existence of saline waters deep in the bedrock have also been targets of extensive studies, because water chemistry affects the chemical stability of the repository near-field, as well as radionuclide transport. The Palmottu natural analogue study was one of the international high-priority natural analogue studies in which transport phenomena were explored in a natural geological system. Currently, deep biosphere processes are being investigated in support of the safety of nuclear waste disposal. (orig.)

  18. ORGANIZATIONAL ASPECT OF SYSTEMATIC RESEARCH AND ANALYSES OF HUMAN RESOURCES (HR) POTENTIAL IN THE NUCLEAR INDUSTRY

    OpenAIRE

    Nikolay I. Ishchenko

    2013-01-01

    The article observes organizational aspects of systematic approach to HR development in the areas of scientific industries, which uses and explores socially dangerous technologies. Specific aspects of the nuclear industry as a large scientific and production area have been observed in the article. Major steps and results of systematic HR research have been formulated. 

  19. Rewriting the history: a new future for the nuclear energy in United Kingdom?; Reescribiendo la historia: un nuevo futuro para la energia nuclear en Reino Unido?

    Energy Technology Data Exchange (ETDEWEB)

    Woodman, B. [University of Warwick, Coventry CV4 8UW (United Kingdom)

    2009-07-01

    From ends of the ninety, the new nuclear energy has been rejected three times like an option of viable energy generation for United Kingdom: once during the privatization of the electric supply industry and twice during the subsequent revisions to the energy politicians carried out in 2003. Nevertheless, three years more late, a new debate around the energy politics gave an unusual turning in the industry destination, characterized by the firm consideration in the political calendar about the new reactors development, as well as of governmental politicians guided to impel it. This recent interest arises of restlessness regarding the future security of the supply and to the necessity of reducing the carbon dioxide emissions of United Kingdom. With the purpose of obtaining the sufficient support of civil politicians and investors for the new construction project, the industry will have to devise convincing arguments to prove that it has already solved those problems that it suffered in the past and, also that deserves to receive a special treatment in the liberated market of the electricity. This document synthesizes the structure of the nuclear industry in United Kingdom, some recent historical data and the reasons for those that the new nuclear reactors were not very received in the past. It also indicates the measures that have taken in recent times to modify that perspective. Finally, it analyzes the possible future of the nuclear energy at long term in United Kingdom. (Author)

  20. Analysis considerations in the future of the nuclear energy in Mexico; Consideraciones de analisis en el futuro de la energia nuclear en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Alonso V, G., E-mail: gustavo.alonso@inin.gob.mx [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2013-10-15

    Mexico requires for legal command reducing the participation of fossil energy for the electric power production to not more than 65% for 2024, the other 35% will be covered by sources of clean energy, among which are the renewable sources and the nuclear energy. Inside the National Strategy of Energy 2012-2016 3 possible scenarios are outlined to give execution to this command, in this work is made an analysis of these scenarios and its implications in energy safety. (Author)

  1. The nuclear energy and the others sources; La energia nuclear y el resto de las fuentes: el tema de la seguridad

    Energy Technology Data Exchange (ETDEWEB)

    Velasco, E.

    2008-07-01

    Safety is the priority in the nuclear industry actions. For the design and during the construction or the exploitation, including the decommissioning, the fundamental objective is not to produce any damage to the people or the environment. In the same way, the radioactive waste management technologies give the right solution to treatment and storage of them. The Regulatory Organisations of each country warranties with its vigilance the safety objectives. A network of international organisation, public and private, support the experiences exchange, the normative harmonisation and the management, searching the excellence and best practices. (Author)

  2. Development of a model for strategic evaluation of the global performance of the Brazilian Nuclear Energy Commission; Desenvolvimento de um modelo para avaliacao estrategica do desempenho global da Comissao Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Staude, Fabio

    2003-07-01

    A conscious, effective course of action, now essential to several areas and organizations, has become a must in the public administration. In this sense, modem managerial practices may contribute significantly for governmental organism to take up an attitude shifted to results in the society, without losing its eminently public function. In order to measure the social impact of the activities of the State as a whole, institutions must use mechanisms that allow self-evaluations of their performance, so as to verify the return obtained as a result of their efforts. However, most institutions do not have structured tools for such evaluation. The present study proposes to the Comissao Nacional de Energia Nuclear a model to measure its global performance, offering a proposed architecture for the measurement system in accordance with the results of the planning process of the Institution. The methodology presented also comprises the definition of cause-and-effect critical models between the strategic objectives of the organization and its respective factors critic ai for success, as well as related performance indicators. This work also includes the breakdown of the measurement system for the macro processes of the organization, optimizing resource sharing and the flow of information, avoiding redundant efforts and bringing forth further advantages aiming at creating a organizational 'unit'. Within this context, the developed model may offer substantial help for the improvement of the maturity of the organization in goal-oriented management, considering that the proposed global performance measurement follows a planned structure, with a systemic approach of the organization, allowing that the process be carried out in a way that is transparent and objective. (author)

  3. Conditions of a new development of the nuclear energy: the new imperatives of the electric competition; Condiciones de un nuevo desarrollo de la energia nuclear: los nuevos imperativos de la competencia electrica

    Energy Technology Data Exchange (ETDEWEB)

    Finon, D. [Centre International de Recherche sur l' Environment et le Developpement, CNRS, Campus du Jardin Tropical 45 bis, avenue de la Belle Gabrielle 94736, Nogent-sur-Marne Cedex (France)

    2009-07-01

    In this work firstly, it is present a panorama that it makes mention to the energy and environmental aspects of long term for which the reactivation of the nuclear sector could be one of the main answers in the electric industry. Next, we will determine the specific imperatives that weigh on the nuclear investment in a market environment. Later on we will examine the way in that the general problem of the investments in the liberalized electric industries takes progressively to abandon the competitive pattern of reference in diverse countries, that which allows to establish a field most favorable for the nuclear investment. Finally, we will analyze the viability of the public areas that the states could apply to create a specific mark dedicated to organize the nuclear investments in the electric industries where the competition continued being very strong. (Author)

  4. Probabilistic analysis of safety of a production plant of hydrogen using nuclear energy; Analisis probabilistico de seguridad de una planta de produccion de hidrogeno utilizando energia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Flores F, A. [Facultad de Ingenieria, UNAM, 04510 Mexico D.F. (Mexico); Nelson E, P.F.; Francois L, J.L. [Facultad de Ingenieria, UNAM, Paseo Cuauhnahuac 8532, Jiutepec, Morelos (Mexico)]. e-mail: alain_fyf@yahoo.com

    2005-07-01

    The present work makes use of the Probabilistic Safety analysis to evaluate and to quantify the safety in a plant producer of hydrogen coupled to a nuclear reactor of high temperature, the one which is building in Japan. It is had the description of systems and devices of the HTTR, the pipe diagrams and instrumentation of the plant, as well as the rates of generic faults for the components of the plant. The first step was to carry out a HAZOP study (Hazard and Operability Study) with the purpose of obtaining the initiator events; once obtained these, it was developed a tree of events by each initiator event and for each system it was developed a fault tree; the data used for the quantification of the failure probability of the systems were obtained starting from several generic sources of information. In each tree of events different final states were obtained and it stops each one, their occurrence frequency. The construction and evaluation of the tree of events and of failures one carries out with the SAPHIRE program. The results show the safety of the shutdown system of the HTTR and they allow to suggest modifications to the auxiliary system of refrigeration and to the heat exchanger helium/water pressurized. (Author)

  5. Application of the nuclear energy in the improvement of native pseudo cereals of Mexico; Aplicacion de la energia nuclear en el mejoramiento de pseudocereales nativos de Mexico

    Energy Technology Data Exchange (ETDEWEB)

    De la Cruz T, E., E-mail: eulogio.delacruz@inin.gob.m [ININ, Departamento de Biologia, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2010-07-01

    Mexico is a diverse country that contains to 10% of the flora and fauna of the world, is also a place of domestication of diverse cultivations like the corn, the bean, the pumpkin, the vanilla, the cocoa and the avocado that constitute some samples of the vast contribution from our nation to the agriculture. Two species highlight inside the cultivations that Mexico contributed to the world and that at the present time they take place in small cultivated surfaces by means of traditional methods: the amaranth (Amaranths hypochondria cus) and the huauzontle (Chenopodium berlanideri sbp. nuttalliae). Both sub-utilized species the amaranth and the huauzontle possess a high nutritious value in accordance with the foods classification established by the FAO, and given its tolerance to adverse conditions is considered like an alternative to contribute to reduce the malnutrition in marginal agricultural areas. At the present time their improvement is searched with respect to some characteristics as: reduction of the fall of the seed in field; great seed size; cob (spike) big and compact and of smaller height, with what they would become more productive and more handling. To achieve these diverse stages are proposed that include the morphological characterization of the species, the study of the available phyto genetics resources, the characterization with regard to the nutritional components and until the cytogenetics and molecular characterization; all these aspects are essential to structure a strategy of genetic improvement for radio induced mutagenesis. (Author)

  6. Hydrogen production through nuclear energy, a sustainable scenario in Mexico; Produccion de hidrogeno mediante energia nuclear, un escenario sostenible en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Ortega V, E.; Francois L, J.L. [Departamento de Sistemas Energeticos, Facultad de Ingenieria, Universidad Nacional Autonoma de Mexico, Laboratorio de Analisis en Ingenieria de Reactores Nucleares, Paseo Cuauhnahuac 8532, Jiutepec, Morelos (Mexico)]. e-mail: iqoren@gmail.com

    2007-07-01

    The energy is a key point in the social and economic development of a country, for such motive to assure the energy supply in Mexico it is of vital importance. The hydrogen it is without a doubt some one of the alternating promising fuels before the visible one necessity to decentralize the energy production based on hydrocarbons. The versatility of their applications, it high heating power and having with the more clean fuel cycle of the energy basket with which count at the moment, they are only some examples of their development potential. However the more abundant element of the universe it is not in their elementary form in our planet, it forms molecules like in the hydrocarbons or water and it stops their use it should be extracted. At the present time different methods are known for the extraction of hydrogen, there is thermal, electric, chemical, photovoltaic among others. The election of the extraction method and the primary energy source to carry out it are decisive to judge the sustainability of the hydrogen production. The sustainable development is defined as development that covers the present necessities without committing the necessity to cover the necessities of the future generations, and in the mark of this definition four indicators of the sustainable development of the different cycles of fuel were evaluated in the hydrogen production in Mexico. These indicators take in consideration the emissions of carbon dioxide in the atmosphere (environment), the readiness of the energy resources (technology), the impacts in the floor use (social) and the production costs of the cycles (economy). In this work the processes were studied at the moment available for the generation of hydrogen, those that use coal, natural gas, hydraulic, eolic energy, biomass and nuclear, as primary energy sources. These processes were evaluated with energy references of Mexico to obtain the best alternative for hydrogen production. (Author)

  7. Experimental aspects of quarkonia production and suppression in cold and hot nuclear matter

    CERN Document Server

    Frawley, A D

    2015-01-01

    When heavy Quarkonia are formed in collisions between between nuclei, their production cross section is modified relative to that in p+p collisions. The physical effects that cause this modification fall into two categories. Hot matter effects are due to the large energy density generated in the nuclear collision, which disrupts the formation of the quarkonium state. Cold nuclear matter effects are due to the fact that the quarkonium state is created in a nuclear target. I will review experimental aspects of quarkonia production due to both hot and cold matter effects.

  8. Alcohol, energy of the biomass: technological and economical aspects of the production; Alcool, energia da biomassa: aspectos tecnologicos e economicos da producao

    Energy Technology Data Exchange (ETDEWEB)

    Ometto, Joao Guilherme Sabino [Cooperativa de Produtores de Cana, Acucar e Alcool do Estado de Sao Paulo Ltda. (COPERSUCAR), Sao Paulo, SP (Brazil)

    1993-05-01

    This text synthesizes a presentation made by president of COPERSUCAR, Cooperative of Producing of Cane, Sugar and Alcohol of Sao Paulo's State Ltd., private organization, in the Escola de Engenharia de Sao Carlos (University of Sao Paulo). It is shown the role of COPERSUCAR in the technological development of the industry of the sugar cane and alcohol. It is also presented the technological advanced and economic aspects of this industry. Among the main presented aspects they stand out: evolution of the production of the cane, sugar and alcohol; prices and costs of production of the alcohol; potential of reduction of industrial costs; biodegradable plastic and reduction of the tax of emission of CO{sub 2} in the atmosphere.

  9. Mis on Roheline Energia? / Kadi Laid

    Index Scriptorium Estoniae

    Laid, Kadi, 1976-

    2004-01-01

    Tuule- ja vee-energia kasutamisest Rohelise Energia osalussüsteemiga liitunud kuues Hiiumaa ettevõttes ning Kärdla linnavalitsuses. Kommenteerivad Toomas Jõõts, Ari Hannula ja Ants Vahtras. Lisa: Rohelise energia ostjad Hiiumaal praegu

  10. ICT security- aspects important for nuclear facilities; Information and Communication Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Thunem, Atoosa P-J.

    2005-09-15

    Rapid application growth of complex Information and Communication Technologies (ICT) in every society and state infrastructure as well as industry has revealed vulnerabilities that eventually have given rise to serious security breaches. These vulnerabilities together with the course of the breaches from cause to consequence are gradually about to convince the field experts that ensuring the security of ICT-driven systems is no longer possible by only relying on the fundaments of computer science, IT, or telecommunications. Appropriating knowledge from other disciplines is not only beneficial, but indeed very necessary. At the same time, it is a common observation today that ICT-driven systems are used everywhere, from the nuclear, aviation, commerce and healthcare domains to camera-equipped web-enabled cellular phones. The increasing interdisciplinary and inter-sectoral aspects of ICT security worldwide have been providing updated and useful information to the nuclear domain, as one of the emerging users of ICT-driven systems. Nevertheless, such aspects have also contributed to new and complicated challenges, as ICT security for the nuclear domain is in a much more delicate manner than for any other domains related to the concept of safety, at least from the public standpoint. This report addresses some important aspects of ICT security that need to be considered at nuclear facilities. It deals with ICT security and the relationship between security and safety from a rather different perspective than usually observed and applied. The report especially highlights the influence on the security of ICT-driven systems by all other dependability factors, and on that basis suggests a framework for ICT security profiling, where several security profiles are assumed to be valid and used in parallel for each ICT-driven system, sub-system or unit at nuclear facilities. The report also covers a related research topic of the Halden Project with focus on cyber threats and

  11. Some nuclear chemical aspects of medical generator nuclide production at the Los Alamos hot cell facility

    CERN Document Server

    Fassbender, M; Heaton, R C; Jamriska, D J; Kitten, J J; Nortier, F M; Peterson, E J; Phillips, D R; Pitt, L R; Salazar, L L; Valdez, F O; 10.1524/ract.92.4.237.35596

    2004-01-01

    Generator nuclides constitute a convenient tool for applications in nuclear medicine. In this paper, some radiochemical aspects of generator nuclide parents regularly processed at Los Alamos are introduced. The bulk production of the parent nuclides /sup 68/Ge, /sup 82/Sr, /sup 109/Cd and /sup 88/Zr using charged particle beams is discussed. Production nuclear reactions for these radioisotopes, and chemical separation procedures are presented. Experimental processing yields correspond to 80%-98% of the theoretical thick target yield. Reaction cross sections are modeled using the code ALICE-IPPE; it is observed that the model largely disagrees with experimental values for the nuclear processes treated. Radionuclide production batches are prepared 1-6 times yearly for sales. Batch activities range from 40MBq to 75 GBq.

  12. Eesti Energia unustas Toomas Lumani andmed / Raimo Poom

    Index Scriptorium Estoniae

    Poom, Raimo

    2008-01-01

    Eesti Energia jurist Heili Raudkivi palus rahandusministeeriumilt infot, mis tähtajaks on rahandusminister nimetanud Eesti Energia nõukogu liikmeks Toomas Lumani. Eesti Energia pressiesindaja selgitus

  13. Technical aspects of nuclear microprobe analysis of senile plaques from alzheimer patients

    Science.gov (United States)

    Larsson, N. P.-O.; Tapper, U. A. S.; Sturesson, K.; Odselius, R.; Brun, A.

    1990-04-01

    Alzheimer's disease, a common form of senile dementia, has been proposed to be caused by aluminium. One of the interesting structures to be studied, senile plaque cores in the brain, have centres of only about 10 μm. We have investigated the possibility of applying nuclear microprobes to sections containing senile plaques. An alternative staining procedure, TMToluidin blue staining using a spray technique, is also presented. An outline is given of a procedure for preparing senile plaque specimens for nuclear microprobe analysis. This includes a technique for accurate ion beam positioning, utilizing electron microscopy-grids. The subject may be of general interest since sample preparation is one of the most important aspects in microprobe analysis of biological matter.

  14. Eesti Energia esindused = Eesti Energia branches / Andres Labi, Janno Roos

    Index Scriptorium Estoniae

    Labi, Andres, 1977-

    2013-01-01

    Eesti Energia klienditeeninduse kontorite sisekujundusest. Autorid: Janno Roos, Andres Labi ja Liisa Põime (Ruumilabor). Visuaalne identiteet: Tank.Teenuste disain: Urmas Pastarus. ESLi aastapreemiate žürii esimehe Kaido Kivi ning žürii liikme Raivo Puusepa arvamused

  15. Eesti Energia teenis rekordkasumit / Andrus Karnau

    Index Scriptorium Estoniae

    Karnau, Andrus

    2006-01-01

    Ilmunud ka: Postimees : na russkom jazõke 25. apr. lk. 2. Eesti energia teenis 31. märtsil lõppenud majandusaastal rekordilise 2,1 miljardi kroonise kasumi. Diagramm: Eesti Energia viimased kolm majandusaastat ja tulevikuplaanid

  16. Implantação de um programa de gerenciamento de resíduos químicos e águas servidas nos laboratórios de ensino e pesquisa no CENA/USP Establishment of a management program for chemical residues and waste water, generated in laboratories of the centro de energia nuclear na agricultura (CENA/USP

    Directory of Open Access Journals (Sweden)

    Glauco Arnold Tavares

    2005-08-01

    Full Text Available The aim of this work is to establish a program for the treatment of chemical residues and waste waters at the Centro de Energia Nuclear na Agricultura (CENA/USP, for environmental preservation and training of staff. Five tons of stored residues and the ones currently generated in the laboratories have to be treated. Rational use of water is also part of the program. The traditional purification by distillation has been replaced by purification with ion exchange resins. Lower energy consumption and better water quality were achieved.

  17. Nuclear criticality safety and time reactivity enhancement aspects of energy amplifier system devices

    Energy Technology Data Exchange (ETDEWEB)

    Siciliano, F. [ENEA, Centro Ricerche Trisaia, Rotondelle, Matera (Italy). Direzione INFO

    1995-12-01

    As far as the Rubbia`s and colleagues proposal of innovating Energy Amplifier system (E.A.s.) device driven by a particle beam accelerator is concerned, four basic topics are comprised in the present paper: (1) A short outline of the nuclear aspects of Th-U and U-Pu fuel cycles regarding their general breeding and efficiency features. (2) The needed nuclear criticality control requirements have been studied in terms of safety regulating parameters on the basis of the ThO2 mixed oxides selected as fuel kind for the E.A.s. device technology development. Particular attention is devoted to time evolution of neutron multiplication factor since delayed development of the 233U buildup and so system reactivity are expected in the Th-U cycle. (3) Code E.A.s. device irradiation and post-irradiation modelling for determining higher actinides buildup, fission products formation and fuel consumption trends as function of time, system enrichment degree and flux level parameters. (4) The confirmation, on the basis of the same specific power irradiation, of expected actinides waste obtainment cleaner than the one deriving from the U-Pu cycle utilization. For this end, a model comparison of equivalent enriched fissile nuclides in both cycles has been devised as having, within the range of 0-700 days, ten irradiation periods of about 53 MW/ton specific power and equivalent cooling time post-irradiation periods.

  18. System aspects on safeguards for the back-end of the Swedish nuclear fuel cycle

    Energy Technology Data Exchange (ETDEWEB)

    Fritzell, Anni (Dept. of Physics and Astronomy, Uppsala Univ., Uppsala (Sweden))

    2008-03-15

    This thesis has investigated system aspects of safeguarding the back-end of the Swedish nuclear fuel cycle. These aspects include the important notion of continuity of knowledge, the philosophy of verifying measurements and the need to consider the safeguards system as a whole when expanding it to include the encapsulation facility and the geological repository. The research has been analytical in method both in the identification of concrete challenges for the safeguards community in Paper 1, and in the diversion path analysis performed in Paper 2. This method of work is beneficial for example when abstract notions are treated. However, as a suggestion for further work along these lines, a formal systems analysis would be advantageous, and may even reveal properties of the safeguards system that the human mind so far has been to narrow to consider. A systems analysis could be used to model a proposed safeguards approach with the purpose of finding vulnerabilities in its detection probabilities. From the results, capabilities needed to overcome these vulnerabilities could be deduced, thereby formulating formal boundary conditions. These could include: The necessary partial defect level for the NDA measurement; The level of redundancy required in the C/S system to minimize the risk of inconclusive results due to equipment failure; and, Requirements on the capabilities of seismic methods, etc. The field of vulnerability assessment as a tool for systems analysis should be of interest for the safeguards community, as a formal approach could give a new dimension to the credibility of safeguards systems

  19. Public opinion about nuclear energy is in a change process: we have moved from opposition to the consideration; La opinion publica sobre la energia nuclear esta en proceso de cambio: hemos pasado del rechazo a la consideracion

    Energy Technology Data Exchange (ETDEWEB)

    Nunez, P.

    2012-07-01

    The nuclear sector in Spain is making huge affords towards improving public acceptance. the common trend is rigorous and professional diffusion and information regarding nuclear issues. The goal, besides informing on the excellent results and impeccable performance of nuclear power plants, is for effective communication to offer society information on current activities. (Author)

  20. L'Energy Amplifier di Rubbia : gli studi per la produzione di un'energia nucleare pulita ed il loro impatto sul piano economico

    CERN Document Server

    Sessano, D; Panizza, R

    2000-01-01

    The growing interest towards new energy forms is a common feature of many different studying fields: physics, engineering, economics and politics. The main reason is that human population is growing fast (there's a prevision of about nine billion people in 2050) and with it is increasing the energy request, both for the industrialized world and for the developing countries. This means that the actual organization of the energy market will not be able to satisfy the needs of the near future: clean energy for everybody. The International Energy Agency provided a "business as usual" scenario where is shown that by the year 2030 the world energy demand will be 70% higher than now and the electricity demand would follow the same pattern, needing somewhat like 3475 GW of new electric power. The logic conclusion is that we'll need all the energy forms we know: fossil fuels, nuclear and renewable energy. Nowadays the energy - and particularly the electricity - market is facing large problems: global warming and depen...

  1. Direitos Humanos, energia nuclear e cooperação militar nos anos 1970: as relações entre o Brasil e os Estados Unidos

    Directory of Open Access Journals (Sweden)

    Edson José Perosa Junior

    2016-02-01

    Full Text Available Na segunda metade dos anos 1970, a política de não proliferação nuclear dos EUA sofreu significativas mudanças. Da mesma maneira, a agenda de Direitos Humanos se tornou um tema prioritário nas relações do governo estadunidense com outros países. Esses foram dois temas que abalaram as relações entre Brasil e Estados Unidos e que tiveram implicações para a denúncia do acordo militar entre esses mesmos países. O objetivo do presente artigo é explorar o impacto dessas questões nas relações bilaterais entre Brasília e Washington, bem como as implicações para a política interna desses países. Preza-se também por demonstrar as diferenças de postura nessas questões entre o governo Ford e o governo Carter.

  2. Mathematical aspects of assessing extreme events for the safety of nuclear plants

    Science.gov (United States)

    Potempski, Slawomir; Borysiewicz, Mieczyslaw

    2015-04-01

    In the paper the review of mathematical methodologies applied for assessing low frequencies of rare natural events like earthquakes, tsunamis, hurricanes or tornadoes, floods (in particular flash floods and surge storms), lightning, solar flares, etc., will be given in the perspective of the safety assessment of nuclear plants. The statistical methods are usually based on the extreme value theory, which deals with the analysis of extreme deviation from the median (or the mean). In this respect application of various mathematical tools can be useful, like: the extreme value theorem of Fisher-Tippett-Gnedenko leading to possible choices of general extreme value distributions, or the Pickands-Balkema-de Haan theorem for tail fitting, or the methods related to large deviation theory. In the paper the most important stochastic distributions relevant for performing rare events statistical analysis will be presented. This concerns, for example, the analysis of the data with the annual extreme values (maxima - "Annual Maxima Series" or minima), or the peak values, exceeding given thresholds at some periods of interest ("Peak Over Threshold"), or the estimation of the size of exceedance. Despite of the fact that there is a lack of sufficient statistical data directly containing rare events, in some cases it is still possible to extract useful information from existing larger data sets. As an example one can consider some data sets available from the web sites for floods, earthquakes or generally natural hazards. Some aspects of such data sets will be also presented taking into account their usefulness for the practical assessment of risk for nuclear power plants coming from extreme weather conditions.

  3. Technical economic feasibility study for the implementation of a nuclear power plant for the production of electricity in Colombia; Estudio de factibilidad tecnico economica para la implementacion de una central de energia nuclear para la produccion de energia electrica en Colombia

    Energy Technology Data Exchange (ETDEWEB)

    Gonzales, David E.; Bolanos, Hernan G.; Mayorga, Manuel A.; Rodriguez, Edwin A., E-mail: david_egO@yahoo.es, E-mail: hernanbolaos@yahoo.com.ar, E-mail: alejo_mayorga@yahoo.com, E-mail: edwin.rodriguez@distoyota.com.co [Escuela Colombiana de Carreras Industriales (ECCI), Bogota (Colombia). Grupo de Investigacion GIATME

    2013-07-01

    A study on the technical and economic feasibility will be used to implement a nuclear power in Colombia to generate electricity. To this will be searched if there are previous studies on this topic and what they concluded. The manner in which power is supplied will be discussed in a national level nowadays, its strengths and weaknesses. It will be investigated the legal norms that exists in the country on nuclear power and renewable energy sources, the standards established at world level, the nuclear accidents and the great examples. Providers will be sought on the world market nuclear equipment which serve to this purpose and the technical characteristics of these equipment will be discussed. The type of fuel used in nuclear reactors, its origin, method of production, specifications, availability and long-term and safe handling and final disposal are considered. safe handling of this technology and policy or international rules that will studied.

  4. Retinoids and nuclear retinoid receptors in white and brown adipose tissues: physiopathologic aspects.

    Science.gov (United States)

    Flajollet, Sébastien; Staels, Bart; Lefebvre, Philippe

    2013-08-01

    Vitamin A, ingested either as retinol or β-carotene from animal- or plant-derived foods respectively, is a nutrient essential for many biological functions such as embryonic development, vision, immune response, tissue remodeling, and metabolism. Its main active metabolite is all trans-retinoic acid (atRA), which regulates gene expression through the activation of α, β, and γ isotypes of the nuclear atRA receptor (RAR). More recently, retinol derivatives were also shown to control the RAR activity, enlightening the interplay between vitamin A metabolism and RAR-mediated transcriptional control. The white and brown adipose tissues regulate the energy homeostasis by providing dynamic fatty acid storing and oxidizing capacities to the organism, in connection with the other fatty acid-consuming tissues. This concerted interorgan response to fatty acid fluxes is orchestrated, in part, by the endocrine activity of the adipose tissue depots. The adipose tissues are also sites for synthesizing and storing vitamin A derivatives, which will act as hormonal cues or intracellularly to regulate essential aspects of adipocyte biology. As agents that prevent adipocyte differentiation hence, expected to decrease fat mass, and inducers of uncoupling protein expression, thus, favoring energy expenditure, retinoids have prompted many investigations to decipher their roles in adipose tissue pathophysiology, which are summarized in this review.

  5. Critical aspects of the nuclear multifragmentation; Etude du caractere critique de la multifragmentation nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Marie, J

    2004-06-01

    From statistical mechanics, this thesis looks for a phase transition signal in nuclei. We try to describe critical aspects of the nuclear multifragmentation. Thermodynamical observables as fragment mass/charge distributions are used in those finite systems. The percolation theory is first applied to strictly statistical events from the lattice gas model framework at the thermodynamical critical point. The scaling functions obtained are quantitatively comparable for every sample. Critical exponents are almost the same as the liquid/gas universality class ones. The second part is devoted to Fisher's model framework taking into account for the chemical potential and the surface energy coefficient. The extracted critical temperature is compatible with the percolation one. Experimental samples are then studied from peripheral (Au+Au) and central (Xe+Sn) heavy ion collisions. Entrance channel memory effects are evidenced in peripheral events. The presence of collective flow make the central ones far away from the conditions required by Fisher's model. Nevertheless, the critical energy found is independent of the data characteristics. This curious stability has to be studied. (authors)

  6. Lahtimuukimata tume energia / Dennis Overbye

    Index Scriptorium Estoniae

    Overbye, Dennis

    2008-01-01

    Salapärase tumeda energia avastamisest on möödas kümme aastat, ent teadmatus, millega on tegu ja kuidas seda üldse teada võiks saada, ajab teadlased endiselt meeleheitele. Lisaks joonis: Laiali kihutavad galaktikad

  7. The atolls of Mururoa and Fangataufa (French Polynesia). The nuclear testings. Radiological aspects; Les atolls de Mururoa et de Fangataufa (Polynesie Francaise). Les experimentations nucleaires. Aspects radiologiques

    Energy Technology Data Exchange (ETDEWEB)

    Martin, G

    2007-07-01

    This report provides a review of the radiological measures implemented during the thirty year period of French nuclear tests in Polynesian atolls of Mururoa and Fangataufa. It presents full details of the practices deployed throughout these tests, including, in particular, aspects concerning radiological protection for the population and the environment. It contains all the scientific results and measurements of radioactivity performed during this period, providing concrete facts that can be used to assess the consequences these tests have had on the personnel involved, the population and the environment. (author)

  8. Eesti Energia tahab elektrit toota Pihkvas / Toivo Tänavsuu

    Index Scriptorium Estoniae

    Tänavsuu, Toivo

    2005-01-01

    Eesti Energia ja Venemaa ettevõte RAO Rossija võivad koos rajada Pihkvasse ühise gaasielektrijaama. Eesti Energia juhatuse liikme Lembit Vali kommentaare. Lisa: Fortum ja Eesti Energia otsivad koostöövõimalusi

  9. Eesti Energia gets lower than hoped for price hike

    Index Scriptorium Estoniae

    2008-01-01

    Konkurentsiamet ja Eesti Energia leppisid kokku elektritariifi tõusu põhimõtetes. Elektri hinna tõus on kolm korda väiksem kui Eesti Energia lootis. Eesti Energia on huvitatud tuumaelektrijaamast

  10. Could the New Absorption Cross Section of J/psi Change the Aspect of Nuclear Absorption Mechanism

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    The enlarged new absorption cross section of J/psi by pion and rho mesons were put into the hadron and string cascade model, JPCIAE, and the J/psi suppression factors in p-A, O-U, S-U and Pb-Pb minimum bias collisions at 200 AGeV/c were calculated with nuclear absorption mechanism only. The results seem to indicate that, with new enlarged cross section it is still hard to change the aspect that nuclear absorption itself could not easily account for the J/psi anomalous suppression in Pb-Pb collisions.

  11. Development of the process of energy transfer from a nuclear Power Plant to an intermediate temperature electrolyse; Desarrollo del proceso de transferencia de energia desde una central nuclear a un electrolizador de temperatura intermedia

    Energy Technology Data Exchange (ETDEWEB)

    Munoz Cervantes, A.; Cuadrado Garcia, P.; Soraino Garcia, J.

    2013-07-01

    Fifty million tons of hydrogen are consumed annually in the world in various industrial processes. Among them, the ammonia production, oil refining and the production of methanol. One of the methods to produce it is the electrolysis of water, oxygen and hydrogen. This process needs electricity and steam which a central nuclear It can be your source; Hence the importance of developing the transfer process energy between the two. The objective of the study is to characterize the process of thermal energy transfer from a nuclear power plant to an electrolyzer of intermediate temperature (ITSE) already defined. The study is limited to the intermediate engineering process, from the central to the cell.

  12. Laser Intertial Fusion Energy: Neutronic Design Aspects of a Hybrid Fusion-Fission Nuclear Energy System

    Energy Technology Data Exchange (ETDEWEB)

    Kramer, Kevin James [Univ. of California, Berkeley, CA (United States)

    2010-04-08

    This study investigates the neutronics design aspects of a hybrid fusion-fission energy system called the Laser Fusion-Fission Hybrid (LFFH). A LFFH combines current Laser Inertial Confinement fusion technology with that of advanced fission reactor technology to produce a system that eliminates many of the negative aspects of pure fusion or pure fission systems. When examining the LFFH energy mission, a significant portion of the United States and world energy production could be supplied by LFFH plants. The LFFH engine described utilizes a central fusion chamber surrounded by multiple layers of multiplying and moderating media. These layers, or blankets, include coolant plenums, a beryllium (Be) multiplier layer, a fertile fission blanket and a graphite-pebble reflector. Each layer is separated by perforated oxide dispersion strengthened (ODS) ferritic steel walls. The central fusion chamber is surrounded by an ODS ferritic steel first wall. The first wall is coated with 250-500 μm of tungsten to mitigate x-ray damage. The first wall is cooled by Li17Pb83 eutectic, chosen for its neutron multiplication and good heat transfer properties. The Li17Pb83 flows in a jacket around the first wall to an extraction plenum. The main coolant injection plenum is immediately behind the Li17Pb83, separated from the Li17Pb83 by a solid ODS wall. This main system coolant is the molten salt flibe (2LiF-BeF2), chosen for beneficial neutronics and heat transfer properties. The use of flibe enables both fusion fuel production (tritium) and neutron moderation and multiplication for the fission blanket. A Be pebble (1 cm diameter) multiplier layer surrounds the coolant injection plenum and the coolant flows radially through perforated walls across the bed. Outside the Be layer, a fission fuel layer comprised of depleted uranium contained in Tristructural-isotropic (TRISO) fuel particles

  13. Physical aspects of quality assurance in nuclear medicine and radiotherapy, regulatory approach of the National Nuclear Safety Center; Aspectos fisicos de garantia de calidad en medicina nuclear y radioterapia. Enfoque regulatorio del centro Nacional de Seguridad Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez C, D.; Fuente P, A. de la; Quevedo G, J.R.; Lopez F, Y. [CNSN, Calle 28 No. 504 e/5 y 7, Ave. Miramar, La Habana (Cuba); Varela C, C. [CCEEM, Calle 4 No. 455 e/19 y 21, Ave. Vedado, La Habana (Cuba)]. e-mail: cruz@orasen.co.cu

    2006-07-01

    The physical aspects of the quality guarantee in Nuclear Medicine and Radiotherapy its are of cardinal importance to guarantee the quality of the diagnoses and treatments that are carried out to the patients in this type of services. The OIEA, the OMS and other scientific and professional organizations have contributed significantly to the elaboration of recommendations, Protocols, etc. applicable in the quality control programs and safety of the Nuclear Medicine and Radiotherapy departments. In spite of the great effort developed in this sense the Installation of the programs of quality control and safety of the Nuclear Medicine and Radiotherapy departments can fail if the same ones are not based in three decisive elements that are: the existence of national regulations, the existence of the infrastructure required for it and the existence of enough qualified personnel to develop this programs. The present work shows the regulatory focus that on this topic, it has followed the National Center of Nuclear Safety of Cuba (CNSN). The same left of strengthen all the existent Synergies in the different organizations of the country and it went in two fundamental directions: installation of the regulatory requirements that govern this activity and the Authorization of a Cuban Entity, specialized in carrying out audits to the quality control and safety programs of the Nuclear Medicine and Radiotherapy departments. After 4 work years in this direction, the results confirm the validity of the experience developed by the CNSN, at the moment all the services of Nuclear Medicine and Radiotherapy of Cuba possess quality control and safety programs, these programs are annually Auditing by an Authorized entity by the CNSN and the Inspectors of the Regulatory Authority, control, during the inspections, the one execution of the established requirements in the national regulations. The work developed so far can serve, modestly, of reference to others countries of Latin America that

  14. Laser Intertial Fusion Energy: Neutronic Design Aspects of a Hybrid Fusion-Fission Nuclear Energy System

    Energy Technology Data Exchange (ETDEWEB)

    Kramer, Kevin James [Univ. of California, Berkeley, CA (United States)

    2010-04-08

    This study investigates the neutronics design aspects of a hybrid fusion-fission energy system called the Laser Fusion-Fission Hybrid (LFFH). A LFFH combines current Laser Inertial Confinement fusion technology with that of advanced fission reactor technology to produce a system that eliminates many of the negative aspects of pure fusion or pure fission systems. When examining the LFFH energy mission, a significant portion of the United States and world energy production could be supplied by LFFH plants. The LFFH engine described utilizes a central fusion chamber surrounded by multiple layers of multiplying and moderating media. These layers, or blankets, include coolant plenums, a beryllium (Be) multiplier layer, a fertile fission blanket and a graphite-pebble reflector. Each layer is separated by perforated oxide dispersion strengthened (ODS) ferritic steel walls. The central fusion chamber is surrounded by an ODS ferritic steel first wall. The first wall is coated with 250-500 μm of tungsten to mitigate x-ray damage. The first wall is cooled by Li17Pb83 eutectic, chosen for its neutron multiplication and good heat transfer properties. The Li17Pb83 flows in a jacket around the first wall to an extraction plenum. The main coolant injection plenum is immediately behind the Li17Pb83, separated from the Li17Pb83 by a solid ODS wall. This main system coolant is the molten salt flibe (2LiF-BeF2), chosen for beneficial neutronics and heat transfer properties. The use of flibe enables both fusion fuel production (tritium) and neutron moderation and multiplication for the fission blanket. A Be pebble (1 cm diameter) multiplier layer surrounds the coolant injection plenum and the coolant flows radially through perforated walls across the bed. Outside the Be layer, a fission fuel layer comprised of depleted uranium contained in Tristructural-isotropic (TRISO) fuel particles

  15. Nuclear energy in Mexico as alternative for the reduction of CO{sub 2} emissions; Energia nuclear en Mexico, como alternativa para la reduccion de emisiones de CO{sub 2}

    Energy Technology Data Exchange (ETDEWEB)

    Alonso, G.; Ramirez, J. R.; Palacios, J. C., E-mail: gustavo.alonso@inin.gob.m [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2011-07-01

    One of the main concerns related with global warming is the reduction of the green house emissions. Mexico is taking steps to solve this problem, in its recent National Energy Strategy has considered to increase the use of clean electricity sources up to a 35% the share to be meat at 2024, currently this participation in electricity generation is 23.9%. In 2008 the Mexican Electrical Network produced 0.466 tons of CO{sub 2}/MWh, this index is above the OECD 0.45 CO{sub 2}/MWh average value. The current study considers the use of nuclear energy as part of the addition of clean energy to the Electrical grid; it proposes the capacity and the numbers of nuclear reactors to be used and it provides the emissions scenario generated with this proposal. (Author)

  16. The resurgence of nuclear energy. An option for the climatic change and for the emergent countries?; El resurgimiento de la energia nuclear. Una opcion para el cambio climatico y para los paises emergentes?

    Energy Technology Data Exchange (ETDEWEB)

    Campos A, L. [UNAM, Instituto de Investigaciones Economicas, Circuito Mario de la Cueva, Ciudad Universitaria, 04510 Mexico D. F. (Mexico); Nieva G, R.; Mulas, P. [Instituto de Investigaciones Electricas, Av. Reforma 113, Col. Palmira, 62490 Cuernavaca, Morelos (Mexico); Velez, C. [Electricite de France, Comite Cientifico Asesor, 22-30 avenue de Wagram, 75382 Paris (France); Ortiz M, J. R. [ININ, Carretera Mexico-Toluca s/n, 52759 Ocoyoacac, Estado de Mexico (Mexico); Thomas, S. [University of Greenwich, 30 Park Row, London SE10 9LS (United Kingdom); Finon, D. [Centre International de Recherche sur l' Environment et le Developpement, CNRS, Campus du Jardin Tropical 45 bis, avenue de la Belle Gabrielle 94736, Nogent-sur-Marne Cedex (France); Woodman, B. [University of Warwick, Coventry CV4 8UW (United Kingdom); Mez, L. [Freie Universitat Berlin, Environmental Policy Research Centre, Thielallee 47, 14195 Berlin (Germany)

    2009-07-01

    The modern society is organized in mistaken form. A tremendous inability of the juridical, political, social and cultural system exists to interrelate the ecosystem (the resources that allow the life and the human activity) with the economic way of production, that is to say with the manner like the human beings appropriate of the nature and they transform it to satisfy the reproduction necessities of the capital and the population. Today we are already paying the consequences of this error. Of continuing with this tendency the next six years, a global increase of five centigrade grades is expected in the temperature, with effects like the increase of the sea level, floods, droughts, among other global problems, for what the gases of greenhouse effect are and they will continue being the main environmental challenge of the X XI century because they not represent alone a threat for the development but also for the humanity survival. The world conscience has wakened up, and in most of the countries where is stopped the construction of new nuclear power plants the plans are reconsidered to return the use of this source, being the two main reasons for reconsideration: the concern for the climatic change and the new world perception about the limits of fossil fuel reserves. The world return of the interest for the nuclear energy, it force to take in consideration the energy politics of Mexico whose structure is too much dependent of hydrocarbons and the import of liquefied natural gas and other energies, subject to the prices volatility and in a frame that lacks long term vision. Here the whole problem of the nuclear industry is exposed, the experiences, the risks, the costs, the future of the energy production for the populations that every time has a bigger consumption, the reader will have, this way, a wide panorama of diverse topics and interests that affect to generation of nuclear energy. (Author)

  17. Economic analysis of the hydrogen production by means of the thermo-chemistry process iodine-sulfur with nuclear energy; Analisis economico de la produccion de hidrogeno mediante el proceso termoquimico yodo-azufre con energia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Solorzano S, C.; Francois L, J. L., E-mail: cuausos@comunidad.unam.mx [UNAM, Facultad de Ingenieria, Departamento de Sistemas Energeticos, Paseo Cuauhnahuac No. 8532, Col. Progreso, 62550 Jiutepec, Morelos (Mexico)

    2011-11-15

    In this work an economic study was realized about a centralized plant of hydrogen production that works by means of a thermo-chemistry cycle of sulfur-iodine and uses heat coming from a nuclear power plant of IV generation, with base in the software -Hydrogen Economic Evaluation Programme- obtained through the IAEA. The sustainable technology that is glimpsed next for the generation of hydrogen is to great scale and based on processes of high temperature coupled to nuclear power plants, being the most important the cycle S-I and the electrolysis to high temperature, for what objective references are presented that can serve as base for the taking of decisions for its introduction in Mexico. After detailing the economic models that uses the software for the calculation of the even cost of hydrogen production and the characteristics, so much of the nuclear plant constituted by fourth generation reactors, as of the plant of hydrogen production, is proposed a -base- case, obtaining a preliminary even cost of hydrogen production with this process; subsequently different cases are studied starting from which are carried out sensibility analysis in several parameters that could rebound in this cost, taking into account that these reactors are still in design and planning stages. (Author)

  18. Social representation for future teachers on the nuclear energy: probable implications of the public opinion; Representacoes sociais de futuros professores a respeito da energia nuclear: possiveis implicacoes na opiniao publica

    Energy Technology Data Exchange (ETDEWEB)

    Ayllon, Rafaella Menezes; Farias, Luciana Aparecida, E-mail: rafaellayllon@hotmail.com [Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, SP (Brazil); Favaro, Deborah I.T., E-mail: ditfavaro@yahoo.com.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2013-07-01

    This study aimed to study the SR (social representation) regarding the 'Nuclear Energy' (NW) and 'Nuclear Chemistry' (NC) of students of Science - Bachelor of Federal University of Sao Paulo - UNIFESP. Individual questionnaires to research the topic, followed by the presentation of seminars with the focus of the research were applied. The methodology used was the technique of free word (Abric ,1994) which gives the frequency of each element that was mentioned and their average order of evocation, as well as semi -structured questionnaire with questions. Among the first results, it was found that the words 'Bomb' and 'Reactor' were the most mentioned by the group when asked evocations related to 'NE', while the terms 'Health' and 'Safety' are among the least mentioned. When referring to 'NC' the most frequent terms were 'Chemistry' and 'Atoms/Elements and 'Reactor' and 'Development' were less frequent. However, even though as a possible central core elements that match a negative SR theme, these students indicated Nuclear Energy as a strong option/option for diversifying the Brazilian energy matrix.

  19. Society and health effects of aspects an overview of nuclear energy

    Directory of Open Access Journals (Sweden)

    Mehmet Soykenar

    2015-02-01

    Full Text Available Today along with developing technology and rapid population growth, energy needs have been increasing in the worldwide. In order to supply rising energy demands, the countries have been tending to nuclear power plants which have high productivitiy. As all kinds of energy sources, there are negative effects to public health in the stages of production and consumption also for nuclear energy. For nuclear power plants established by using high tecnology, required precautions are adopted by assessing all negative effects that can harm environmental health. So as to provide our country to be the leading position in the global trade and tecnological progress competition, it is required to make the investments by evaluating the pros and cons of nuclear energy, regarded as a qualified and sustainable energy source. [TAF Prev Med Bull 2015; 14(1.000: 65-70

  20. Space disposal of nuclear wastes. Volume 1: Socio-political aspects

    Science.gov (United States)

    Laporte, T.; Rochlin, G. I.; Metlay, D.; Windham, P.

    1976-01-01

    The history and interpretation of radioactive waste management in the U.S., criteria for choosing from various options for waste disposal, and the impact of nuclear power growth from 1975 to 2000 are discussed. Preconditions for the existence of high level wastes in a form suitable for space disposal are explored. The role of the NASA space shuttle program in the space disposal of nuclear wastes, and the impact on program management, resources and regulation are examined.

  1. Preliminary analysis of an hydrogen generator system based on nuclear energy in the Laguna Verde site; Analisis preliminar de un sistema generador de hidrogeno basado en energia nuclear en el sitio de Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Flores y Flores, A. [FI-UNAM, 04500 Mexico D.F. (Mexico); Francois L, J.L. [FI-UNAM, Jiutepec, Morelos (Mexico)]. e-mail: alain_fyf@yahoo.com

    2003-07-01

    The shortage of fossil fuels in the next future, as well as the growing one demand of energetics and the high cost of the production of alternating fuels, it forces us to take advantage of to the maximum the fossil fuel with the one which we count and to look for the form of producing alternating fuels at a low cost and better even if these supply sources are reliable and non pollutants. It is intended a solution to the shortage of fuel; to use the thermal energy liberated of some appropriate nuclear reactor to be able to obtain a fuel but clean and relatively cheap as it is the hydrogen. In the first place the methods were looked for to produce hydrogen using thermal energy, later it was analyzed the temperature liberated by the existent nuclear reactors as well as the advanced designs, according to this liberated temperature settled down that the methods but feasible to produce hydrogen its were the one of reformed with water stream of the natural gas (methane) and the other one of the S-I thermochemical cycle, and the nuclear reactors that give the thermal energy for this production they are those of gas of high temperature. Once established the processes and the appropriate reactors, it was analyzed the site of Laguna Verde, with relationship to the free space to be able to place the reactor and the plant producer of hydrogen, as well as the direction in which blow the dominant winds and the near towns to the place, it was carried out an analysis of some explosion of tanks that could store hydrogen and the damage that its could to cause depending from the distance to which its were of the fire. Finally it was carried out an evaluation of capital and of operation costs for those two methods of hydrogen production. (Author)

  2. Nuclear research center transformation experience; Experiencia de transformacion de un centro de investigacion nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Diaz, J. L.; Jimenez, J. M.

    2001-07-01

    As consequence of the changes in the energy polities of each countries in the 80th. many of the Nuclear Research Centres suffered a transformation (more of less deep) in other Research and Development Centres with a wider spectrum that the exclusively nuclear one. This year is the 50 anniversary of the Spanish Centre of Nuclear Research-Junta de Energia Nuclear.The JEN the same as other suffered a deep renovation to become the CIEMAT Centro de Investigaciones Energeticas Medioambientales y Tecnologicas (Research Centre for Energy, Environment and Technology). This paper is focussed on the evolution of JEN to CIEMAT besides analysing the reach of this re-foundation considering the political reasons and technical aspect that justified it and the laws in those it is based on. (Author)

  3. Evaluation of two processes of hydrogen production starting from energy generated by high temperature nuclear reactors; Evaluacion de dos procesos de produccion de hidrogeno a partir de energia generada por reactores nucleares de alta temperatura

    Energy Technology Data Exchange (ETDEWEB)

    Valle H, J., E-mail: jvalle@upmh.edu.mx [Universidad Politecnica Metropolitana de Hidalgo, Boulevard Acceso a Tolcayuca 1009, Ex-Hacienda San Javier, 43860 Tolcayuca, Hidalgo (Mexico)

    2013-10-15

    In this work an evaluation to two processes of hydrogen production using energy generated starting from high temperature nuclear reactors (HTGR's) was realized. The evaluated processes are the electrolysis of high temperature and the thermo-chemistry cycle Iodine-Sulfur. The electrolysis of high temperature, contrary to the conventional electrolysis, allows reaching efficiencies of up to 60% because when increasing the temperature of the water, giving thermal energy, diminishes the electric power demand required to separate the molecule of the water. However, to obtain these efficiencies is necessary to have water vapor overheated to more than 850 grades C, temperatures that can be reached by the HTGR. On the other hand the thermo-chemistry cycle Iodine-Sulfur, developed by General Atomics in the 1970 decade, requires two thermal levels basically, the great of them to 850 grades C for decomposition of H{sub 2}SO{sub 4} and another minor to 360 grades C approximately for decomposition of H I, a high temperature nuclear reactor can give the thermal energy required for the process whose products would be only hydrogen and oxygen. In this work these two processes are described, complete models are developed and analyzed thermodynamically that allow to couple each hydrogen generation process to a reactor HTGR that will be implemented later on for their dynamic simulation. The obtained results are presented in form of comparative data table of each process, and with them the obtained net efficiencies. (author)

  4. Analysis of the scenarios with the participation of nuclear energy in the Mexican electric sector using the Decades program; Analisis de escenarios con la participacion de la energia nuclear en el sector electrico mexicano utilizando el programa DECADES

    Energy Technology Data Exchange (ETDEWEB)

    Sosa P, E.; Trejo G, M.G.; Martin del Campo M, C.; Francois L, J.L. [FI-UNAM, 04500 Mexico D.F. (Mexico)] e-mail: edithsosa@hotmail.com

    2003-07-01

    At the moment the energetic planning demands a technical, economic and environmental analysis of the different options of electric generation to be able to find the best solution of supply and energy readiness, already that it is indispensable for the development of the productive activities and to assure the competitiveness of the economy of a country. The expansion analyses of the Mexican Electric Sector its are carried out daily in the Federal Commission of Electricity (CFE) with some programs, among them Decades. However, up to where we have information only there is been considering a type of reactor like candidate being that exist several options that show promising characteristics for what its should be considered in the analyses. With this work its got rich the Decades database of the nuclear power stations that can be used as candidates to consider in the variable system of the expansion studies. Its have been carried out some comparative analysis between two types of nuclear centrals that at the moment offer in the market, specifically the AP600 type PWR reactor of 600 M We and the one BWR with capacity of 1300 M We. Later on it is sought to analyze two or three scenarios of the system of electric generation in Mexico to a term of twenty or twenty-five years. (Author)

  5. A stochastic model for neutron simulation considering the spectrum and nuclear properties with continuous dependence of energy; Um modelo estocastico de simulacao neutronica considerando o espectro e propriedades nucleares com dependencia continua de energia

    Energy Technology Data Exchange (ETDEWEB)

    Camargo, Dayana Queiroz de

    2011-01-15

    This thesis has developed a stochastic model to simulate the neutrons transport in a heterogeneous environment, considering continuous neutron spectra and the nuclear properties with its continuous dependence on energy. This model was implemented using Monte Carlo method for the propagation of neutrons in different environment. Due to restrictions with respect to the number of neutrons that can be simulated in reasonable computational processing time introduced the variable control volume along the (pseudo-) periodic boundary conditions in order to overcome this problem. The choice of class physical Monte Carlo is due to the fact that it can decompose into simpler constituents the problem of solve a transport equation. The components may be treated separately, these are the propagation and interaction while respecting the laws of energy conservation and momentum, and the relationships that determine the probability of their interaction. We are aware of the fact that the problem approached in this thesis is far from being comparable to building a nuclear reactor, but this discussion the main target was to develop the Monte Carlo model, implement the code in a computer language that allows extensions of modular way. This study allowed a detailed analysis of the influence of energy on the neutron population and its impact on the life cycle of neutrons. From the results, even for a simple geometrical arrangement, we can conclude the need to consider the energy dependence, i.e. an spectral effective multiplication factor should be introduced each energy group separately. (author)

  6. Small nuclear power reactor emergency electric power supply system reliability comparative analysis; Analise da confiabilidade do sistema de suprimento de energia eletrica de emergencia de um reator nuclear de pequeno porte

    Energy Technology Data Exchange (ETDEWEB)

    Bonfietti, Gerson

    2003-07-01

    This work presents an analysis of the reliability of the emergency power supply system, of a small size nuclear power reactor. Three different configurations are investigated and their reliability analyzed. The fault tree method is used as the main tool of analysis. The work includes a bibliographic review of emergency diesel generator reliability and a discussion of the design requirements applicable to emergency electrical systems. The influence of common cause failure influences is considered using the beta factor model. The operator action is considered using human failure probabilities. A parametric analysis shows the strong dependence between the reactor safety and the loss of offsite electric power supply. It is also shown that common cause failures can be a major contributor to the system reliability. (author)

  7. Nuclear energy as culture: a practical process for preparation of the agents responsible for that transformation; Energia nuclear como cultura: um processo pratico para preparacao dos agentes desta transformacao

    Energy Technology Data Exchange (ETDEWEB)

    Aquino, Afonso Rodrigues de; Vieira, Martha Marques Ferreira [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)], e-mail: araquino@ipen.br, e-mail: mmvieira@ipen.br; Soares, Wellington Antonio [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)], e-mail: soaresw@cdtn.br

    2008-08-15

    In Brazil research and development are supported mainly by the government, meaning it is public money So it is important to share the knowledge and benefits from the research with the society. Another important question is the scientific analphabetism that raise difficulties for the comprehension of science and technology related matters. One way to improve the understanding process is the creation of workshops for science popularization which presented outstanding results. Participants of a workshop held by the Nuclear Technology Development Center CDTN - BH evaluated with grade 8.8 (from zero to ten) evincing the excellence of the applied model, simple in its essence: a group comprising scientific researchers, journalists and high school teachers attended several specific talks and was asked to prepare material for science divulgation according to the presented criteria. (author)

  8. Energy education; Pedagogia da energia

    Energy Technology Data Exchange (ETDEWEB)

    Muniz, Rafael Ninno, e-mail: rafaelninno@gmail.com

    2006-07-01

    'Pedagogia da Energia' (energy education) is a qualification course that has as intention to unite ambient education with renewable energies through the art-education and of the long-distance education. Collective made up of theoretical and practical activities through group dynamic and works, with intention to integrate and to enable the participants as a whole, aiming to form potentials to agreement and diffusion of energy concepts of the subjects environment - energy - residues. It possess the structure of an actual course with support of long-distance education with a platform of available web education in the Internet, where the participants have access the all content used in the course (texts, presentations and figures), virtual library, colloquy room, thematic list of quarrel and forum, beyond guardianship accompaniment. A structure constructed in classroom for the participants uses as pedagogical tool titled 'Mandala das Energias' where the concepts studied are worked in. The politics characteristics presented are, ambient and social of the use of the power plants and its implications in the daily one of the humanity. It understands the education as a reciprocal process, that understands the intention to teach and to learn in a set of exchanges of necessary information to the curious nature of the human beings. This article explains the structure and methodology of functioning of the course with a summary of the worked chapters. It also presents the pedagogical tool 'Mandala das Energias' and its respective flowchart of energies that originated it in annex at the end of the text. (author)

  9. Safety and security aspects in design of digital safety I and C in nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Ding, Yongjian [University of Applied Sciences Magdeburg-Stendal, Magdeburg (Germany). Inst. of Electrical Engineering; Waedt, Karl [Areva GmbH, Erlangen (Germany). PEAS-G

    2016-05-15

    The paper describes a safety objective oriented systematic design approach of digital (computerized) safety I and C in modern nuclear power plants which considers the plant safety requirements as well as cybersecurity needs. The defence in depth philosophy is applied by using different defence lines in the I and C architecture and protection zones in the plant IT environment.

  10. Hybrid instrument applied to human reliability study in event of loss of external electric power in a nuclear power plant; Instrumento hibrido aplicado ao estudo da confiabilidade humana em evento de perda de energia eletrica externa em usina nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Martins, Eduardo Ferraz

    2015-04-01

    The study projects in highly complex installations involves robust modeling, supported by conceptual and mathematical tools, to carry out systematic research and structured the different risk scenarios that can lead to unwanted events from occurring equipment failures or human errors. In the context of classical modeling, the Probabilistic Safety Analysis (PSA) seeks to provide qualitative and quantitative information about the project particularity and their operational facilities, including the identification of factors or scenarios that contribute to the risk and consequent comparison options for increasing safety. In this context, the aim of the thesis is to develop a hybrid instrument (CPP-HI) innovative, from the integrated modeling techniques of Failure Mode and Effect Analysis (FMEA), concepts of Human Reliability Analysis and Probabilistic Composition of Preferences (PCP). In support of modeling and validation of the CPP-HI, a simulation was performed on a triggering event 'Loss of External Electric Power' - PEEE, in a Nuclear Power plant. The results were simulated in a virtual environment (sensitivity analysis) and are robust to the study of Human Reliability Analysis (HRA) in the context of the PSA. (author)

  11. Novel nuclear structure aspects of the O{nu}{beta}{beta}-decay

    Energy Technology Data Exchange (ETDEWEB)

    Menendez, J; Poves, A [Departamento de Fisica Teorica, and IFT, UAM-CSIC, Universidad Autonoma de Madrid, 28049-Madrid (Spain); Caurier, E; Nowacki, F, E-mail: alfredo.poves@uam.es [IPHC, IN2P3-CNRS/Universite Louis Pasteur, 67037-Strasbourg (France)

    2011-01-01

    We explore the influence of the deformation on the nuclear matrix elements of the neutrinoless double beta decay (NME), concluding that the difference in deformation -or more generally in the amount of quadrupole correlations- between parent and grand daughter nuclei quenches strongly the decay. We correlate these differences with the seniority structure of the nuclear wave functions. In this context, we examine the present discrepancies between the NME's obtained in the framework of the Interacting Shell Model and the Quasiparticle RPA. In our view, part of the discrepancy can be due to the limitations of the spherical QRPA in treating nuclei which have strong quadrupole correlations. We surmise that the NME's in a basis of generalized seniority are approximately model independent, i. e. they are 'universal'.

  12. Nuclear design aspect of the Korean high intensity proton accelerator project

    Energy Technology Data Exchange (ETDEWEB)

    Chang, Jonghwa; Song, Tae-Yung [Korea Atomic Energy Research Inst., Yusong, Taejon (Korea, Republic of)

    1998-11-01

    A plan to construct a high current proton accelerator has been proposed by KAERI. We are presenting the required nuclear design to support the project as well as a brief overview of the proposed proton accelerator. The target and core design is highlighted to show feasibility of incineration of minor actinides from the spent fuel of light water reactors. Radiation shielding and activation analyses are also important for the design and the license of the accelerator. (author)

  13. Analytical study of the prospectives published by the Secretaria de Energia; Estudio analitico de las prospectivas publicadas por la Secretaria de Energia

    Energy Technology Data Exchange (ETDEWEB)

    Beltran Mora, Hector Alejandro; Urias Romero, Francisco [Facultad de Ingenieria, Universidad Nacional Autonoma de Mexico, Mexico, D.F. (Mexico)

    2004-06-15

    Since 1997 the Secretaria de Energia (SENER) publishes an annual report named Prospectiva del Sector Electrico, in which detailed information on the situation of the Mexican electrical sector is included, the information is related to the technological, economic and environmental aspects of all the organisms involved in the matter of electrical energy, within which stand out the Comision Federal de Electricidad (CFE), Luz y Fuerza del Centro (LyFC), the Comision Reguladora de Energia (CRE) and the Comision Nacional para el Ahorro de Energia (CONAE). In the prospectives the tendency of the modifications that will undergo the sector in a period of 10 years is analyzed. All the prospectives of the electrical sector, agree in that the growth of this sector is determined by the construction of power stations that use natural gas as primary energy, reason why we made an analysis of the prospectives of the natural gas market, with the purpose of observing the interaction between both sectors. At the moment seven prospectives of each sector have been published, given the conditions at the moment of their publication, they present differences and agreements between each other for periods of intersection. The present work shows the comparison between the expectations of growth reported by each one of the Prospectives. [Spanish] Desde 1997 la Secretaria de Energia (SENER) publica un reporte anual llamado Prospectiva del Sector Electrico, en el que se incluye informacion detallada sobre la situacion del sector electrico mexicano, la informacion esta relacionada con los aspectos tecnologicos, economicos y medioambientales de todos los organismos involucrados en materia de energia electrica, dentro de los cuales destacan la Comision Federal de Electricidad (CFE), Luz y Fuerza del Centro (LyFC), la Comision Reguladora de Energia (CRE) y la Comision Nacional para el Ahorro de Energia (CONAE). En las prospectivas se analiza la tendencia de las modificaciones que sufrira el sector

  14. Hans A. Bethe Prize: Astrophysical, observational and nuclear-physics aspects of r-process nucleosynthesis

    Science.gov (United States)

    Kratz, Karl-Ludwig

    2014-03-01

    Guided by the Solar System (S.S.) abundance peaks at A ~= 130 and A ~= 195, the basic mechanisms for the rapid neutron-capture process (the r-process) have been known for over 50 years. However, even today, all proposed scenarios and sites face problems with astrophysical conditions as well as with the necessary nuclear-physics input. In my talk, I will describe efforts in experimental and theoretical nuclear-structure data for modeling today's three groups of r-process ``observables'', i.e. the bulk S.S. isotopic abundances, the elemental abundances in metal-poor halo stars, and peculiar isotopic patterns measured in certain cosmic stardust grains. To set a historical basis, I will briefly recall our site-independent ``waiting-point'' model, with superpositions of neutron-density components and the use of the first global, unified nuclear input based on the mass model FRDM(1992). This approach provided a considerable leap forward in the basic understanding of the required astrophysical conditions, as well as of specific shell-structure properties far from stability. Starting in the early millenium, the above simple model has been replaced by more realistic, dynamical parameter studies within the high-entropy wind scenario of core-collapse supernovae, now with superpositions of entropy (S) and electron-fraction (Ye) components. Furthermore, an improved, global set of nuclear-physics data is used today, based on the new mass model FRDM(2012). With this nuclear and astrophysics parameter combination, a new fit to the S.S. r-abundances will be shown, and its improvements and remaining deficiencies in terms of underlying shell structure will be discussed. Concerning the abundance patterns in metal-poor halo stars, an interpretation of the production of ``r-rich'' (e.g. CS 22892-052) and ``r-poor'' (e.g. HD 122563) stars in terms of different (Ye), S combinations will be presented. Finally, for the third group of ``r-observables'', a possible origin of the anomalous Xe

  15. Transmutation of nuclear waste with a low-aspect-ratio Tokamak neutron source

    Energy Technology Data Exchange (ETDEWEB)

    Hong, Bong Guen; Moon, Se Youn [Chonbuk National University, Jeonju (Korea, Republic of)

    2014-10-15

    The transmutation characteristics of transuranics (TRUs) in a transmutation reactor based on a LAR (Low-aspect-ratio) tokamak as a neutron source are investigated. The optimum radial build of a transmutation reactor is found by using a coupled analysis of the tokamak systems and the neutron transport. The dependences of the transmutation characteristics on the aspect ratio A in the range of 1.5 to 2.5 and on the fusion power in the range of 150 to 500 MW are investigated. An equilibrium fuel cycle is developed for effective transmutation, and show that with one unit of the transmutation reactor based on the LAR tokamak producing fusion power in the range of a few hundred MWs, up to 3 PWRs (1.0 GWe capacity) can be supported with a burn-up fraction larger than 50%.

  16. Transmutation of nuclear waste with a low-aspect-ratio tokamak neutron source

    Science.gov (United States)

    Hong, Bong Guen; Moon, Se Youn

    2014-10-01

    The transmutation characteristics of transuranics (TRUs) in a transmutation reactor based on a LAR (Low-aspect-ratio) tokamak as a neutron source are investigated. The optimum radial build of a transmutation reactor is found by using a coupled analysis of the tokamak systems and the neutron transport. The dependences of the transmutation characteristics on the aspect ratio A in the range of 1.5 to 2.5 and on the fusion power in the range of 150 to 500 MW are investigated. An equilibrium fuel cycle is developed for effective transmutation, and show that with one unit of the transmutation reactor based on the LAR tokamak producing fusion power in the range of a few hundred MWs, up to 3 PWRs (1.0 GWe capacity) can be supported with a burn-up fraction larger than 50%.

  17. Some Aspects of Multi-Particle Productions in Relativistic Nuclear Collisions

    Directory of Open Access Journals (Sweden)

    Mohammad Ayaz Ahmad

    2016-11-01

    Full Text Available An attempt has been made for the study of multiparticle production due to the collisions of 28Si and 12C projectiles with nuclear emulsion nuclei (target at an energy of 4.5A GeV/c. Here we have studied the integral multiplicity distribution; total multiplicity charged distributions and our findings had been found in good agreement with the other works in the field of experimental high energy physics. Moreover, finally, we discussed the multiplicity correlations in terms of on Charge/Projectile (Q/Zbeam.

  18. General aspects of the nucleon-nucleon interaction and nuclear matter properties

    Energy Technology Data Exchange (ETDEWEB)

    Plohl, Oliver

    2008-07-25

    The subject of the present thesis is at first the investigation of model independent properties of the nucleon-nucleon (NN) interaction in the vacuum concerning the relativistic structure and the implications for nuclear matter properties. Relativistic and non-relativistic meson-exchange potentials, phenomenological potentials s well as potentials based on effective field theory (EFT) are therefore mapped on a relativistic operator basis given by the Clifford Algebra. This allows to compare the various approaches at the level of covariant amplitudes where a remarkable agreement is found. Furthermore, the relativistic self-energy is determined in the Hartree-Fock (HF) approximation. The appearance of a scalar and vector field of several hundred MeV magnitude is a general feature of relativistic descriptions of nuclear matter. Within QCD sum rules these fields arise due to the density dependence of chiral condensates. We find that independent of the applied NN interaction large scalar and vector fields are generated when the symmetries of the Lorentz group are restored. In the framework of chiral EFT (chEFT) it is shown, that these fields are generated by short-range next-to-leading order (NLO) contact terms, which are connected to the spin-orbit interaction. To estimate the effect arising from NN correlations the equation of state of nuclear and neutron matter is calculated in the Brueckner-HF (BHF) approximation applying chEFT. Although, as expected, a clear over-binding is found (at NLO a saturating behavior is observed), the symmetry energy shows realistic properties when compared to phenomenological potentials (within the same approximation) and other approaches. The investigation of the pion mass dependence within chEFT at NLO shows that the magnitude of the scalar and vector fields persists in the chiral limit - nuclear matter is still bound. In contrast to the case of a pion mass larger than the physical one the binding energy and saturation density are

  19. Eesti Energia õline naeratus / Raimo Poom

    Index Scriptorium Estoniae

    Poom, Raimo

    2010-01-01

    Autor on seisukohal, et valitsuskabinetis kokku lepitud Eesti Energia rahastamise toetusskeem oleks maksumaksjale halvim võimalikest variantidest, kõige suurema küsimuse püstitab plaan arendada hiiglaslik õlitööstus

  20. Criticality safety aspects of spent fuel arrays from emerging nuclear fuel cycles

    Energy Technology Data Exchange (ETDEWEB)

    Nicolaou, G. [University of Thrace, Department of Electrical and Computer Engineering, Laboratory of Nuclear Technology, Kimmerria Campus, 67100 Xanthi (Greece)

    2010-07-01

    Emerging nuclear fuel cycles: fuels with Pu or minor actinides (MA) for their self-generated recycling or transmutation in PWR or FR {yields} reduction of radiotoxicity of HLW. The aim of work is to assess criticality (k{sub {infinity}}) of arrays of spent nuclear fuels from these emerging fuel cycles. Procedures: Calculations of - k{sub {infinity}}, using MCNP5 based on fresh and spent fuel compositions (infinite arrays), - spent fuel compositions using ORIGEN. Fuels considered: - commercial PWR-UO{sub 2} (R1) and -MOX (R2), [45 GWd/t] and fast reactor [100 GWd/t] (R3), - PWR self-generated Pu recycling (S1) and MA recycling (S2), FR self-generated MA recycling (S3), FR with 2% {sup 237}Np for transmutation purposes (T). Results: k{sub {infinity}} based on fresh and spent fuel compositions is shown. Fuels are clustered in two distinct families: - fast reactor fuels, - thermal reactor fuels; k{sub {infinity}} decreases when calculated on the basis of actinide and fission product inventory. In conclusions: - Emerging fuels considered resemble their corresponding commercial fuels; - k{sub {infinity}} decreases in all cases when calculated on the basis of spent fuel compositions (reactivity worth {approx}-20%{Delta}k/k), hence improving the effectiveness of packaging. (author)

  1. Aspects of the state safety regulation dealing with management of radioactive wastes from nuclear vessels

    Energy Technology Data Exchange (ETDEWEB)

    Markarov, Valentin G

    1999-07-01

    According to this presentation, the Constitution of the Russian Federation states that nuclear power engineering and fissile materials are under the jurisdiction of the Russian Federation. But there is no federal law with detailed directions for radioactive waste (RW) management, which thus comes under the Federal law ''On Use of Atomic Energy''. This law defines the legal basis and principles of regulating the relations occurring during RW management and sets some general requirements. RW management safety is regulated by the federal norms and rules (1) Radiation Safety Norms (NRB-96), Basic Sanitary Rules (OSP-72, 87) and (3) Sanitary Rules for RW Management (SPORO-85), etc. A number of normative documents on RW management will be put in force in 1999. For work in the field of RW management, licence must in general be obtained from Gozatomnazdor of Russia. The conditions for receiving a license for the management of RW from vessels are presented.

  2. Aspects of the physical principles of the proton therapy with inclusion of nuclear interactions

    CERN Document Server

    Ulmer, W

    2016-01-01

    The radiotherapy of malignant diseases has reached much progress during the past decade. Thus, intensity modulated radiation therapy (IMRT) and VMAT (Rapidarc) now belong to the standard modalities of tumor treatment with high energy radiation in clinical practice. In recent time, the particle therapy (protons and partially with heavy carbon ions) has reached an important completion of these modalities with regard to some suitable applications. In spite of this enrichment essential features need further research activities and publications in this field: Nuclear reactions and the role of the released neutrons, electron capture of positively charged nuclei at lower projectile energies (e.g. in the environment of the Bragg peak and at the distal end of the particle track), correct dose delivery in scanning methods by accounting for the influence of the lateral scatter of beam-lets. Deconvolution methods can help to overcome these problems, which already occur in radiotherapy of very small photon beams [1 - 8].

  3. Various aspects of the Deformation Dependent Mass model of nuclear structure

    CERN Document Server

    Petrellis, D; Minkov, N

    2015-01-01

    Recently, a variant of the Bohr Hamiltonian was proposed where the mass term is allowed to depend on the beta variable of nuclear deformation. Analytic solutions of this modified Hamiltonian have been obtained using the Davidson and the Kratzer potentials, by employing techniques from supersymmetric quantum mechanics. Apart from the new set of analytic solutions, the newly introduced Deformation-Dependent Mass (DDM) model offered a remedy to the problematic behaviour of the moment of inertia in the Bohr Hamiltonian, where it appears to increase proportionally to the square of beta. In the DDM model the moments of inertia increase at a much lower rate, in agreement with experimental data. The current work presents an application of the DDM-model suitable for the description of nuclei at the point of shape/phase transitions between vibrational and gamma-unstable or prolate deformed nuclei and is based on a method that was successfully applied before in the context of critical point symmetries.

  4. Thermal Aspects of Using Alternative Nuclear Fuels in Supercritical Water-Cooled Reactors

    Science.gov (United States)

    Grande, Lisa Christine

    A SuperCritical Water-cooled Nuclear Reactor (SCWR) is a Generation IV concept currently being developed worldwide. Unique to this reactor type is the use of light-water coolant above its critical point. The current research presents a thermal-hydraulic analysis of a single fuel channel within a Pressure Tube (PT)-type SCWR with a single-reheat cycle. Since this reactor is in its early design phase many fuel-channel components are being investigated in various combinations. Analysis inputs are: steam cycle, Axial Heat Flux Profile (AHFP), fuel-bundle geometry, and thermophysical properties of reactor coolant, fuel sheath and fuel. Uniform and non-uniform AHFPs for average channel power were applied to a variety of alternative fuels (mixed oxide, thorium dioxide, uranium dicarbide, uranium nitride and uranium carbide) enclosed in an Inconel-600 43-element bundle. The results depict bulk-fluid, outer-sheath and fuel-centreline temperature profiles together with the Heat Transfer Coefficient (HTC) profiles along the heated length of fuel channel. The objective is to identify the best options in terms of fuel, sheath material and AHFPS in which the outer-sheath and fuel-centreline temperatures will be below the accepted temperature limits of 850°C and 1850°C respectively. The 43-element Inconel-600 fuel bundle is suitable for SCWR use as the sheath-temperature design limit of 850°C was maintained for all analyzed cases at average channel power. Thoria, UC2, UN and UC fuels for all AHFPs are acceptable since the maximum fuel-centreline temperature does not exceed the industry accepted limit of 1850°C. Conversely, the fuel-centreline temperature limit was exceeded for MOX at all AHFPs, and UO2 for both cosine and downstream-skewed cosine AHFPs. Therefore, fuel-bundle modifications are required for UO2 and MOX to be feasible nuclear fuels for SCWRs.

  5. Dictionary of the energy-producing industry. Nuclear and non-nuclear energy sources. Vol. 3. Fachwoerterbuch zur Energiewirtschaft. Nukleare und nichtnukleare Energietraeger. - Diccionario tecnico de terminos de la industria de energia. Recursos energeticos nucleares y no nucleares. Bd. 3. Aleman-Espanol/Espanol-Aleman

    Energy Technology Data Exchange (ETDEWEB)

    Mannhardt, K.H.

    1981-01-01

    This technical dictionary, compiled in everyday practice, gives an outline of the terminology and phraseology of a modern field of engineering. Users should have some basic knowledge of the Spanish language and also of engineering as well as access to standard-language dictionaries. Core subjects of the dictionary are nuclear power, reactor engineering, fusion technology, solar energy, wind energy, tidal energy, radiation protection, nuclear safety, coal gasification and coal liquefaction, cooperative agreements and managerial problems.

  6. Nuclear project back on track / Matt Garrick

    Index Scriptorium Estoniae

    Garrick, Matt

    2011-01-01

    1. juuniks on Leedu valitsus saanud Visaginasesse rajatava tuumaelektrijaama puudutavad investeerimisettepanekud Hitachi-GE Nuclear Energy Limited, General Electric Co. ja Westlinghouse Electric Company poolt. Peaminister Andrius Kubiliuse sõnul toob tuumaelektrijaam Leetu energiasõltumatuse

  7. Divergent views on a possible nuclear waste repository in the community: Social aspects of decision making

    Energy Technology Data Exchange (ETDEWEB)

    Drottz-Sjoeberg, B.M. [Norwegian Univ. of Science and Technology, Trondheim (Norway). Department of Psychology

    1999-12-01

    The paper summarizes the results obtained in two interview studies conducted in the communities of Storuman and Malaa in northern Sweden, 1995 and 1997. It highlights the similarities and differences with respect to the public participation and decision processes which preceded the respective referenda in the two communities. The presentation includes the arguments used by proponents and opponents, the changes over time, as well as the time frame and the information involved in the processes. It is concluded e.g. that local cultures, life-styles, knowledge of similar events, and the time for and management of the participation process are important and salient factors in the resulting social dynamics. Factors of possibly more fundamental importance were also discerned, however, including overall attitude to and valuation of nuclear power, perceptions of development, solidarity, power and power distribution in relation to current as well as future situations. It is furthermore concluded that the extended public participation process is primarily a political process following the rules of political debates and societal change rather than an effective means of informing the public. It may involve a high degree of exposure to technical details and other kinds of information, but the process should not be understood as an extended basis for exclusively assessing technological accuracy. A discussion of the short and the potential long term effects of active participation of various influential interest groups on representative democracy concludes the paper.

  8. Physical aspects of scintigraphy-based dosimetry for nuclear medicine therapy

    Energy Technology Data Exchange (ETDEWEB)

    Geworski, L.; Knoop, B.O. [Dept. of Radiation Protection and Medical Physics, Hannover Medical School, Hannover (Germany); Schaefer, A.; Kirsch, C.M. [Dept. of Nuclear Medicine, Saarland Univ. Medical Center, Homburg (Germany); Pinkert, J. [Bayer Vital GmbH, Leverkusen (Germany); Plotkin, M. [Clinic for Nuclear Medicine, Univ. Hospital Charitee, Berlin (Germany)

    2010-07-01

    In nuclear medicine therapy the treatment of tumours by radiation exposure from internally deposited labelled antibodies or labelled peptides is currently an active field of investigation. To permit the efficient delivery of high amounts of radiation dose to tumours while limiting the radiation dose to critical organs dosimetry calculations have to be performed. These are relying on scintigraphic data being input to the well known MIRD formalism. This paper focuses on the methods and the difficulties associated with the scintigraphic determination of organ kinetics. The physical properties of the well-known scintigraphic imaging modalities, PET, SPECT and planar scintigraphy, are discussed thereby taking into account the properties of the appropriate radionuclides currently being available for therapy and dosimetry. Several arguments are given and disputed for the limited clinical use of PET and SPECT in dosimetry and the ongoing preference of planar whole-body imaging as the method of choice. The quantitative restrictions still inherent to this method are also discussed in detail. Procedural recommendations are proposed covering all processes related to data acquisition, data correction and data analysis which finally lead to reliable estimations of organ dose. (orig.)

  9. Medical and psychological aspects of crisis management during a nuclear accident

    Energy Technology Data Exchange (ETDEWEB)

    Drottz-Sjoeberg, B.M.

    1993-06-01

    Crisis handling in most kinds of disasters is affected by e.g. the information situation, prior experience and preparedness, availability of resources, efficiency of leadership and coordination, and type of disaster. A nuclear accident creates a situation which differs from many `normal` disasters and natural catastrophes, for example with respects to the invisible nature of radiation and radioactive contamination and thus the dependence on access to specific technical equipment and expertise, and to information about the radiation situation. The scope of the accident, and the existing levels of radiation, define subsequent actions; information policies and existing channels of communication lay the foundation for public reactions. The present paper explores some examples of public reactions, and crisis handling of some previous radiation accidents on the basis of two dimensions, i.e. degree of information availability and degree of impact or `environmental damage`. The examples include the radiation accidents in the Chelyabinsk region in the southern Urals, at Three Mile Island, USA, at Chernobyl in the Ukraine, and in Goiania, Brazil. It is concluded that public reactions differ as a function of existing expectations, and the crisis handling is more affected by the existing organizational and social structures than by needs and reactions of potential victims. Another conclusion is that pre-disaster preparedness regarding public information, and organization of countermeasures, are crucial to the outcome of a successful crisis handling and for enhancing public trust in crisis management. 39 refs, 2 figs.

  10. PREFACE: 10th International Conference on Clustering Aspects of Nuclear Structure and Dynamics (CLUSTER'12)

    Science.gov (United States)

    Lovas, R. G.; Dombrádi, Zs; Kiss, G. G.; Kruppa, A. T.; Lévai, G.

    2013-04-01

    As Editors of this Proceedings volume and organizers as well as participants of the Conference, let us sum up a few facts about the Conference and let us add some subjective notes. The conference was held at Köolcsey Centre, a prestigious site of scientific and business meetings and cultural events in the city of Debrecen, Hungary, 24-28 September 2012. The city was chosen as the home of the Institute of Nuclear Research of the Hungarian Academy of Sciences, the home institution of the organizers. The Institute was visited by some of the participants. The organizing team was complemented by some belonging to the University of Debrecen, which made it possible to hold the conference dinner in the marvellous covered 'ceremonial court' of the University. The participants were taken for an excursion and wine tasting to a wine cellar at Tokaj, centre of, historically, the most significant wine producing area in Hungary. By coincidence, the closing day coincided with the day of what is called the Researchers' Night in the European Union. That night, (or rather, that evening) every year there is a public lecture in the Institute of Nuclear Research for a general audience, mainly secondary-school pupils. The public lecture scheduled on this occasion was held by one of the participants of the conference who represented the world outside Hungary and yet was able to deliver a talk in Hungarian. He is Professor Kálmán Varga, Vanderbilt University. The title of his talk was Simulation of Nanosystems ( http://kutatokejszakaja.hu/2012/esemenynaptar/esemeny.php?id=112&menu_id=4). There were 115 registered participants, representing 22 countries of Europe, Africa, Asia, Central, South and North America. We had 44 plenary talks and 47 talks presented in parallel sessions. In the Programme list the talks are arranged following the session structure of the Conference. In this list the invited speakers are marked by asterisks. All the talks in the plenary sessions were invited talks

  11. Eesti Energia hakkab Jordaanias varsti ehitama / Alyona Stadnik

    Index Scriptorium Estoniae

    Stadnik, Alyona

    2011-01-01

    Eesti Energia loodab, et Jordaania esimese põlevkivielektrijaama ehitus algab juba 2012. aastal. Majandus- ja kommunikatsiooniminister Juhan Partsi sõnul on Jordaani puhul tegemist Eesti võimalusega, Eesti Energia on Jordaania projekti kaasanud juba rahastajaid

  12. Eesti Energia loovutas Estlinki energiabörsile / Kadri Bank

    Index Scriptorium Estoniae

    Bank, Kadri

    2010-01-01

    Eesti Energia otsustas rentida Estlinki merekaabli välja Soome ja Eesti põhivõrkudele, kellel on omakorda kohustus anda see üle vabaturu kasutusse. Eesti Energia finantsdirektori Margus Kaasiku kommentaar

  13. Eesti Energia, vara veel! / Väino Sarnet

    Index Scriptorium Estoniae

    Sarnet, Väino, 1952-

    2010-01-01

    Majanduskonsultant avaldab arvamust, millised on argumendid Eesti Energia kiireks börsiletulekuks, kes sellega võidaksid ja kes kaotaksid ning miks pole praegu õige aeg Eesti Energia aktsiate avalikuks müügiks

  14. Eesti Energia tulu kuivab kokku / Ralf-Martin Soe

    Index Scriptorium Estoniae

    Soe, Ralf-Martin

    2007-01-01

    Ilmunud ka: Delovõje Vedomosti 12. sept. lk. 6. Eesti Energia prognoosib 2008. aastaks kolm korda väiksemat kasumit. Diagramm: Kasum. Vt. samas: Ansip kritiseeris Eesti Energia hinnaküsimist; Taust; Reiting

  15. The MaPLE device of Saha Institute of Nuclear Physics: construction and its plasma aspects.

    Science.gov (United States)

    Pal, Rabindranath; Biswas, Subir; Basu, Subhasis; Chattopadhyay, Monobir; Basu, Debjyoti; Chaudhuri, Manis; Chowdhuri, Manis

    2010-07-01

    The Magnetized Plasma Linear Experimental (MaPLE) device is a low cost laboratory plasma device at Saha Institute of Nuclear Physics fabricated in-house with the primary aim of studying basic plasma physics phenomena such as plasma instabilities, wave propagation, and their nonlinear behavior in magnetized plasma regime in a controlled manner. The machine is specially designed to be a versatile laboratory device that can provide a number of magnetic and electric scenario to facilitate such studies. A total of 36 number of 20-turn magnet coils, designed such as to allow easy handling, is capable of producing a uniform, dc magnetic field of about 0.35 T inside the plasma chamber of diameter 0.30 m. Support structure of the coils is planned in an innovative way facilitating straightforward fabrication and easy positioning of the coils. Further special feature lies in the arrangement of the spacers between the coils that can be maneuvered rather easily to create different magnetic configurations. Various methods of plasma production can be suitably utilized according to the experimental needs at either end of the vacuum vessel. In the present paper, characteristics of a steady state plasma generated by electron cyclotron resonance method using 2.45 GHz microwave power are presented. Scans using simple probe drives revealed that a uniform and long plasma column having electron density approximately 3-5x10(10) cm(-3) and temperature approximately 7-10 eV, is formed in the center of the plasma chamber which is suitable for wave launching experiments.

  16. Asymptotic energies and sustainable electrical development; Energias asintoticas y desarrollo electrico sustentable

    Energy Technology Data Exchange (ETDEWEB)

    Velez O, Carlos [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2003-07-01

    A review is made of the energy resources in use existing at the moment for the electricity production (hydraulic, coal, oil, gas and uranium). The asymptotic energies (solar, geothermal and nuclear fission and fusion) are described and the state of development in which they are up to the moment. One concludes that in the case of Mexico it would be convenient to make flexible and to reinforce the electrical systems in forecast of a greater participation of the distributed generation and to orient the extensions of the electrical generation to make a greater use of the three asymptotic energies already used: the solar (in its forms hydraulic and wind power), geothermal and the nuclear fission. [Spanish] Se pasa revista a los recursos existentes en las energias actualmente en uso para la produccion de electricidad (hidraulica, carbon, petroleo, gas y uranio). Se describen las energias asintoticas (solar, geotermia y fision y fusion nucleares) y el estado de desarrollo en que se encuentran hasta el momento. Se concluye que en el caso de Mexico convendria flexibilizar y reforzar el sistema electrico en prevision de una mayor participacion de la generacion distribuida y orientar las ampliaciones de la generacion electrica para hacer un mayor uso de tres de las energias asintoticas ya utilizadas: la solar (en sus formas hidraulica y eolica), la geotermia y la fision nuclear.

  17. Eesti Energia: veel vee peal / Sulev Vedler

    Index Scriptorium Estoniae

    Vedler, Sulev, 1970-

    2009-01-01

    Valitsus hakkab arutama Eesti Energia rahastamiseks moodustatud komisjoni ettepanekuid. Esimene variant on täiendavate aktsiate väljalaskmine ja nende müümine 2010. aastal börsi kaudu erainvestoritele, teine variant: vajaliku raha paneb Eesti Energiasse riik

  18. Intelligent use of the energy; Uso inteligente de la energia

    Energy Technology Data Exchange (ETDEWEB)

    Dominguez Ahedo, Carlos [Director General de la Comision Nacional para el Ahorro de Energia (CONAE), Mexico D. F. (Mexico)

    2005-07-01

    Comision Nacional para el Ahorro de Energia (CONAE) is an administrative agency independent of the Secretaria de Energia that serves as a technical agency for consultancy in matters of efficient use of energy and advantageous use of renewable energies. This document searches to inform the population how to satisfy the necessity of energy in an intelligent way. For this purpose some useful actions to be performed were detected: the making of a balance between the supply and the energy demand, the consultancy on how the saving of energy is performed in order to reduce its waste, to count on equipment and efficient systems, to use domestic renewable energies and to use the solar energy and the biomass. [Spanish] La Comision Nacional para el Ahorro de Energia (CONAE) es el organo administrativo desconcentrado de la Secretaria de Energia que funge como organismo tecnico de consulta en materia de ahorro y uso eficiente de energia y aprovechamiento de energias renovables. Este documento busca informar a la poblacion acerca de como satisfacer la necesidad de energia a cambio de su utilizacion de manera inteligente, para ello se detectaron areas de oportunidad como: un balance entre la oferta y la demanda energetica, informar a la gente sobre como se efectua el ahorro de energia para con ello reducir el desperdicio de esta, contar con equipos y sistemas eficientes, usar energias renovables domesticas y utilizar la energia solar y la biomasa.

  19. Political Aspects of Nuclear Energy Market Development in the Countries of South Asia. NSG Factor in Promoting Nuclear Energy in the Region

    Directory of Open Access Journals (Sweden)

    Boyko Aleksandr Aleksandrovich

    2016-04-01

    Full Text Available South Asian geopolitical face-off of Delhi and Islamabad revealed breaches of the nuclear nonproliferation. This encouraged the greatest nuclear powers to create a mechanism for additional regulation of the nuclear technology and materials export, which is now known as “Nuclear Suppliers’ Group”. This mechanism aims to impose restrictions for the nuclear technology and materials export to the countries that are not members of NPT. These are nuclear programs of India and Pakistan that are pressing challenge on the agenda. India has been a very attractive market for nuclear suppliers, especially the United States, so the restrictions were lifted from Delhi in 2008. However, they remained valid for Pakistan, which wasn’t an appealing market for the American nuclear exporters. As a result, China, which has been a member of NSG since 2004, has initiated building new NPPs in Pakistan getting mixed reaction of the international community. Despite the clearly contradicting Guidelines, the members of NSG haven’t reached common ground on how to restore its supporting role in maintaining the non-proliferation regime. Thus, the Asian nuclear market develops mostly spontaneously, and its future is shaped primarily by the international relations between importers and exporters. Russia isn’t able to influence all the NSG members to change the position, however it can take advantage of the situation for developing nuclear cooperation with the Asian countries to support sustainable development of the South Asian energy market.

  20. Technical evaluation of the electrical, instrumentation, and control design aspects of the low temperature overpressure protection system for the Point Beach Nuclear Power Plant, Units 1 and 2

    Energy Technology Data Exchange (ETDEWEB)

    Laudenbach, D.H.

    1979-03-01

    The technical evaluation is presented for the electrical, instrumentation, and control design aspects of the low temperature overpressure protection system for the Point Beach nuclear power plant, Units 1 and 2. Design basis criteria used to evaluate the acceptability of the system included operator action, system testability, single failure criterion, and seismic Category I and IEEE Std-279-1971 criteria. This report is supplied as part of the Selected Electrical, Instrumentation, and Control Systems Issues Support Program being conducted for the U.S. Nuclear Regulatory Commission by Lawrence Livermore Laboratory.

  1. Technical evaluation of the electrical, instrumentation, and control design aspects of the low temperature overpressure protection system for the Haddam Neck Nuclear Power Plant

    Energy Technology Data Exchange (ETDEWEB)

    Laudenbach, D.H.

    1979-03-01

    The technical evaluation of the electrical, instrumentation, and control design aspects of the low temperature overpressure protection system for the Haddam Neck Nuclear Power Plant is presented. Design basis criteria used to evaluate the acceptability of the system included operator action, system testability, single failure criterion, and seismic Category I and IEEE Std-279-1971 criteria. This report is supplied as part of the Selected Electrical, Instrumentation, and Control Systems Issues Support Program being conducted for the U.S. Nuclear Regulatory Commission by Lawrence Livermore Laboratory.

  2. Impact of the marketing activities related to service offer an the Nuclear Information Center of the brazilian National Nuclear Energy Commission; Impacto das atividades de marketing relativas a promocao de servicos no Centro de Informacoes Nucleares da Comissao Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Amaral, Sueli Angelica do

    1998-12-31

    Exploratory field research confirms the marketing administration philosophy in Nuclear Information Center (CIN) of National Commission of Nuclear Energy (CNEN), analyzing marketing activities referring to SONAR-INIS (current awareness) and SERVIR-INIS (provision of copies) promotion, in order to evaluate the impact of these activities relating to the use of the services by real users. The data collecting took place using a technique of documental analysis, semi-structured interviews with five managers of the Center, simple no-participant observation accomplished by the researcher in CIN, questionnaires about the administration philosophy applied to the managers, and questionnaires sent by mail to 176 users of the international sample. The 122 users`answers (69,31% of answers rate) were analyzed according to the statistical procedures of Statistical Package of Social Sciences (SPSS), with 0,05% of error margin, and 95% of confidence level. Nine assumptions of research were tested. It was concluded that: the first knowledge of the services was by circulars or letters; SONAR-INIS was not considered as the principal service by its information contents in order to develop professional activities by 60,5% of the users; SERVIR-INIS was considered the main service to access the documents related to the interest of 47,8% of the user; to the majority the most important reason to use both services was the convenience and facilities to access the services; suitability of interest was the most important criterion in order to accomplish the appropriate service; the CIN inquiry frequency to know about users` satisfaction level, their information interests, needs and expectation in order to adapt information offer to demand was irregular and seldom; CIN`s concerns about knowing users` critics, complaints and suggestions was recognized by users; the majority of the users was interested in receiving information about the benefits of the services; the price of the copies obtained in

  3. Estimation of requirements of eolic energy equivalent to the electric generation of the Laguna Verde nuclear power plant; Estimacion de requerimientos de energia eolica equivalente a la generacion electrica de la Central Nucleoelectrica de Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Garcia V, M.A.; Hernandez M, I.A. [Facultad de Ingenieria, Division de Ingenieria Electrica, UNAM, 04510 Mexico D.F. (Mexico)]. E-mail: maiki27@yahoo.com; Martin del Campo M, C. [Facultad de Ingenieria, Laboratorio de Analisis en Ingenieria de Reactores Nucleares, UNAM, Paseo Cuauhnahuac 8532, 62550 Jiutepec, Morelos (Mexico)

    2004-07-01

    The advantages are presented that have the nuclear and eolic energy as for their low environmental impact and to the human health. An exercise is presented in the one that is supposed that the electric power generated by the Laguna Verde Nuclear Power plant (CNLV), with capacity of 1365 M W, it should be produced by eolic energy when in the years 2020 and 2025 the units 1 and 2 of the CNLV reach its useful life and be moved away. It is calculated the number of aero generators that would produce the electric power average yearly of the CNLV, that which is equal to install eolic parks with capacity of 2758 M W, without considering that it will also be invested in systems of back generation to produce electricity when the aero generators stops for lack of wind. (Author)

  4. [Medical and hygienic aspects of instrumental supervision system over nuclear materials and radioactive substances transport on Russian Federation territory].

    Science.gov (United States)

    Grabskiĭ, Iu V; Gavrish, N N; Shevchenko, G T; Viaz'min, S O; Pertsev, V S; Kirillov, V F; Tsov'ianov, A G

    2014-01-01

    Hygienic evaluation of radiation situation in operation of mobile and stationery elements within a project of national system for instrumental supervision over nuclear materials and radioactive substances transport, created with a Global initiative against nuclear terrorism. Levels of exposure to ionizing radiation of the screening complexes appeared to match requirements on radiation safety for service personnel and general population.

  5. Metrological aspects in the estimate of the administered activity in nuclear medicine patients; Aspectos metrologicos na estimativa da atividade administrada em pacientes de medicina nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Ruzzarin, A.; Iwahara, A.; Tahuata, L., E-mail: anelise@bolsista.ird.gov.br [Instituto de Radioprotecao e Dosimetria, (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil), Lab. Nacional de Metrologia das Radiacoes Ionizantes; Xavier, A.M. [Comissao Nacional de Energia Nuclear (ESPOA/CNEN-RS), Porto Alegre, RS (Brazil). Escritorio de Porto Alegre

    2014-07-01

    In order to investigate the performance quality of routine measurements of Nuclear Medicine Services (NMS), the National Metrology Laboratory of Ionizing Radiation/Institute of Radiation Protection and Dosimetry (LNMRI/IRD) has been conducting, since 1998, a program of comparison for activity measurements of radiopharmaceuticals administered to patients in nuclear medicine. Correction factors are determined from the result of performance analysis in order to determine with better accuracy the activity to be administered to the patients. (author)

  6. Energy. Chapter 4; Energia. Capitulo 4

    Energy Technology Data Exchange (ETDEWEB)

    Martin del Castillo, Carlos [Universidad Nacional Autonoma de Mexico, Mexico, D.F. (Mexico)

    2009-07-01

    This chapter stands out that the infrastructure for the electric energy generation, as well as the one departing from fossil fuels has been the responsibility of two institutions with great solvency in the scope of engineering: the Comision Federal de Electricidad (CFE) and Petroleos Mexicanos (PEMEX). It is presented here the energy future in a sustainable context; a prospective study to year 2050; a strategic proposal of Petroleos Mexicanos; the forecast of the oil industry in Mexico and a technological prospective of the energy. [Spanish] En este capitulo se destaca que la infraestructura para la generacion de energia, tanto electrica como a partir de combustibles fisiles ha corrido a cargo de dos instituciones con gran solvencia en el ambito de la ingenieria: la Comision Federal de Electricidad (CFE) y Petroleos Mexicanos (Pemex). Se presenta el futuro de la energia en un contexto sustentable; un estudio prospectivo al ano 2050; una propuesta estrategica de Petroleos Mexicanos; la prospectiva de la industria petrolera en Mexico y; una prospectiva tecnologica de la energia.

  7. Legal aspects of shut-down and decommissioning of nuclear power plants; Rechtsfragen der Stilllegung und des Rueckbaus von Kernkraftwerken

    Energy Technology Data Exchange (ETDEWEB)

    Leidinger, Tobias [Luther Rechtsanwaltsgesellschaft, Duesseldorf (Germany)

    2016-10-15

    The legally phase-out the peaceful use of nuclear energy in Germany has put into focus the topics decommissioning and dismantling of nuclear power plants. Technically and legally issues have to be managed, which are often closely connected. From a legal perspective it is important, that the initial situation of operation and operation phases of the nuclear power plant are settled. Some of the most relevant legal issues are more accurate presented and discussed. They are related to the period after shut-down and before granting the decommissioning license.

  8. 222 questions about the energy. 222 cuestiones sobre la energia

    Energy Technology Data Exchange (ETDEWEB)

    Barrachina Gomez, M.; Cerrolaza Asenjo, J.A.; Garcia Alonso, J.M.; Iranzo Martin, J.E.; Lopez Perez, B.; Minguez Perres, E.; Minguez Torres, E.; Pascualena Cambra, M.T.; Poza Galiano, A. de la; Secades Ariz, I.

    1993-01-01

    The book presents with an easy language, questions about energy. The main topics are: - Energy and energy sources - Energy and society - The energy in the world - Basic concepts of Nuclear Physics - Basic concepts of radiological protection - Electric power - Nuclear Fuel cycle - Environmental impact - Radioactive wastes management - The risk in the electricity production - Standardization of Nuclear Safety - Economic aspects of electricity generation - Energy and Spanish economy.

  9. Härra Eesti Energia lahkus haruldase kaevurikirkaga / Andrus Karnau

    Index Scriptorium Estoniae

    Karnau, Andrus

    2005-01-01

    30. novembril oli Eesti Energia juhi kohalt lahkuval Gunnar Okil viimane tööpäev, kuigi Eesti Energia juhatus pakkus Gunnar Okile korralise lepingu lõppemise järel aastast lepingut, keeldus juhatuse esimees selle sõlmimisest. Lisa: Oki-ajastu

  10. Eesti Energia pakuks börsil boonusaktsiaid / Agnes Ojala

    Index Scriptorium Estoniae

    Ojala, Agnes

    2010-01-01

    Majandus- ja kommunikatsiooniministeerium valmistub Eesti Energia aktsia avalikuks pakkumiseks. Riik soovib, et aktsionäride hulgas oleks rohkelt tavakodanikke, aktsiate ostmise motiveerimiseks lubatakse, et aasta pärast kingitakse lisaaktsiaid. Rahandusministeerium peab otsima alternatiive, kuidas Eesti Energia saaks lisaraha börsile minemata

  11. Parts harvendas ootamatult Eesti Energia nõukogu / Andres Eilart

    Index Scriptorium Estoniae

    Eilart, Andres

    2011-01-01

    Majandus- ja kommunikatsiooniminister Juhan Parts otsustas 1. juulil päevapealt Eesti Energia nõukogu liikme kohalt tagasi kutsuda Aivar Reiviku ning Rein Kuusmiku, kes olid vastu Eesti Energia üle viie miljoni euro suurusele investeeringule Weroli rapsiõlitehase juurde rajatavasse elektri- ja küttejaama. Uuteks nõukogu liikmeteks said Andres Saame ja Toomas Tauts

  12. Eesti Energia juht ihkab teavet / Sandor Liive ; interv. Andrus Karnau

    Index Scriptorium Estoniae

    Liive, Sandor

    2006-01-01

    Vt. ka Postimees : na russkom jazõke 15. mai lk. 10. Eesti Energia juhatuse esimees vastab küsimustele, mis puudutavad Peterburi uue tuumajaama mõju Eesti Energia tuumaprojektile, tuumajaama eeluuringut, uue Soome-Vene elektrikaabli rajamise tõenäosust ning võimalikku rahvahääletust tuumaprojekti küsimuses

  13. Practical aspects of the application of the pinch technology for the reduction of the energy and cooling water consumption in a fertilizer plant; Aspectos practicos de la aplicacion de la tecnologia pinch para la reduccion del consumo de energia y agua de enfriamiento de una planta de fertilizantes

    Energy Technology Data Exchange (ETDEWEB)

    Picon Nunez, M. [Guanajuato (Mexico)

    1995-12-31

    The energy and cooling water system make-up water consumption of a fertilizer plant were reduced in 18% and in 16.4 Tons/hr respectively, representing a substantial saving in the operational costs. The application of the pinch analysis to the process revealed the potential saving of existing energy. The need of reducing the incoming raw materials temperature and the operating pressure of two evaporators was identified, for this purpose it was necessary to install three additional heat exchangers. [Espanol] Los consumos de energia y de agua de reposicion del sistema de enfriamiento de una planta de fertilizantes se redujeron en 18% y en 16.4 ton/hr respectivamente, representando un ahorro sustancial en los costos de operacion. La aplicacion del analisis Pinch al proceso revelo el potencial de ahorro de energia existente. Se identifico la necesidad de reducir la temperatura de alimentacion de la materia prima y la presion de operacion de dos evaporadores, para lo cual fue necesario implementar tres intercambiadores de calor adicionales.

  14. Laser Inertial Fusion-based Energy: Neutronic Design Aspects of a Hybrid Fusion-Fission Nuclear Energy System

    OpenAIRE

    Kramer, Kevin James

    2010-01-01

    This study investigates the neutronics design aspects of a hybrid fusion-fission energy system called the Laser Fusion-Fission Hybrid (LFFH). A LFFH combines current Laser Inertial Confinement fusion technology with that of advanced fission reactor technology to produce a system that eliminates many of the negative aspects of pure fusion or pure fission systems. When examining the LFFH energy mission, a significant portion of the United States and world energy production could be supplied by ...

  15. Software verification, model validation, and hydrogeologic modelling aspects in nuclear waste disposal system simulations - A paradigm shift.

    NARCIS (Netherlands)

    Sheng, G.M.

    1994-01-01

    This work (1) reviews the current concept ad~ internationally on the disposal of highlevel nuclear wastes; (2) discusses some of the major challenges facing this disposal technology; (3) presents an evaluation of the Canadian performance assessment work as a case study; and (4) introduces a new para

  16. The electric energy and the environment in Mexico. Volume 3; Energia electrica y medio ambiente en Mexico. Volumen 3

    Energy Technology Data Exchange (ETDEWEB)

    Quintanilla Martinez, Juan [eds.] [Universidad Nacional Autonoma de Mexico, Mexico, D. F. (Mexico)

    1997-12-31

    This document is the third one of three volumes of the 1. Seminar on the Current Conditions and Perspectives of the Electric Sector in Mexico, organized by the Programa Universitario de Energia and the Instituto de Investigaciones Economicas (University Program of Energy and the Institute of Economic Research), both of them agencies of the Universidad Autonoma de Mexico (UNAM). The titles of the three volumes are the following: Volume 1.- The opening of the Mexican Electric Sector to foreign investment. Volume 2.- Concrete innovation and technological learning experiences at the Luz y Fuerza del Centro enterprise. Volume 3.- The Electric Energy and the Environment in Mexico. This third volume covers the following subjects: Hydroelectricity, land use and water managing; the electric generation in Mexico and its environmental impact, the nuclear electricity and the handling of radioactive materials; the exposure to electromagnetic fields and its association with children`s leukemia; the energy in Mexico and the sustainable development; potential of electricity generation in large scale with wind power in Mexico; towards a scheme of distributed electric power generation with non-conventional energies and renewable energy sources in Mexico in the 21Century. These documents were elaborated by specialists of the electric sector, from the sector itself as well as from private and public academic entities [Espanol] Este documento constituye el tercero de tres volumenes del Primer Seminario sobre Situacion y Perspectivas del Sector Electrico en Mexico, organizado por el Programa Universitario de Energia y el Instituto de Investigaciones Economicas, ambas dependencias de la Universidad Nacional Autonoma de Mexico (UNAM). Los titulos de los tres volumenes son los siguientes: volumen 1: La apertura externa del sector electrico mexicano, volumen 2: Experiencias concretas de innovacion y aprendizaje tecnologico en la empresa Luz y Fuerza del Centro, volumen 3: Energia electrica

  17. The impact of conventional and nuclear industries on the population A comparative study of the radioactive and chemical aspects

    CERN Document Server

    Coulon, R; Anguenot, F

    1988-01-01

    This study was carried out to make it possible to assess and localize in an objective manner the extent of the hazards and associated detrimental effects which are inherent in nuclear and non-nuclear industrial activities, among all the hazards to which the population of a given region is exposed. Rather than carry out a purely theoretical and speculative study a region was chosen as a basis to carry out a full- scale exercise, taking into account the existing real situation. The region chosen is situated in the south-east of France (Greater Rhone Delta) where almost all industrial activities can be found: electricity generating industries (thermal and nuclear power stations), the activities associated with them (extraction, processing, storage of waste, etc.) and industrial activities which are sources of pollution (refineries, chemical industries, etc.). To put the risks of all these activities (to workers, the public and the environment) in perspective, the case of other sources of risk, such as certain ag...

  18. Heavy ion collisions with A = 10/sup 57/: Aspects of nuclear stability and the nuclear equation of state in coalescing neutron-star binary systems

    Energy Technology Data Exchange (ETDEWEB)

    Mathews, G.J.; Wilson, J.R.; Evans, C.R.; Detweiler, S.L.

    1987-12-01

    The dynamics of the final stages of the coalescence of two neturon stars (such as the binary pulsar PSR 1913+16) is an unsolved problem in astrophysics. Such systems are probably efficient generators of gravitational radiation, and may be significant contributors to heavy-element nucleosynthesis. The input physics for the study of such systems is similar to that required for the strudy of heavy-ion collision hydrodynamics; e.g., a finite temperature nuclear equation of state, properties of nuclei away from stability, etc. We discuss the development of a relativistic hydrodynamics code in three spatial dimensions for the purpose of studying such neutron-star systems. The properties of the mass-radius relation (determined by the nuclear equation of state) may lead to a proposed mechanism by which hot, highly neutronized matter is ejected from the coalescing stars. This material is photodisintegrated into a free (mostly) neutron gas which may subsequently experience rapid-neutron capture (r-process) nucleosynthesis. 15 refs., 4 figs.

  19. Ethical aspects of acceptance and risk evaluation of nuclear power use; Ethische Aspekte der Akzeptanz und der Risikobewertung bei der Kernenergienutzung

    Energy Technology Data Exchange (ETDEWEB)

    Gelfort, E.; Schwager, J.

    2008-05-15

    Is the use of nuclear power inadmissible because of its hazard potential? Ethical aspects, especially those of discourse ethics and utilitarianism, are invoked in answering this question. Ethical norms per se are not sufficient, however, to justify or reject the use of nuclear power. More than good will is required to be proved right, do good, and prevent damage; there must also be technical competence and prognostic ability. The perception in society of damage, cost and benefit of nuclear power differs not only because of lack of information and differences in the ability to judge, but also because of different ethical perceptions. There must be rational weighing of individual protection versus community protection in which, irrespective of the outcome, there are always winners and losers. Those who are burdened by a decision do not necessarily benefit from it. It is for this reason that conflicts of interest between minorities and majorities should be resolved by ethically based democratic rules. The hope that this will lead to consensus should not be abandoned. (orig.)

  20. Comparative aspects of somatic cell nuclear transfer with conventional and zona-free method in cattle, horse, pig and sheep.

    Science.gov (United States)

    Lagutina, Irina; Lazzari, Giovanna; Duchi, Roberto; Turini, Paola; Tessaro, Irene; Brunetti, Dario; Colleoni, Silvia; Crotti, Gabriella; Galli, Cesare

    2007-01-01

    Nuclear transfer (NT) is a complex procedure that requires considerable technical skills. Over the years attempts have been made to simplify the micromanipulations involved and to make the procedure more user-friendly. A significant step forwards has been the development of the zona-free NT methods. We have used zona-free NT with mechanical aspiration of the metaphase plate as a mean of enucleation, in a comparative approach with the conventional nuclear transfer zona-enclosed method in cattle, horse, sheep and pig. The absence of the zona considerably facilitates the enucleation step and significantly increases cell fusion success. On the other hand, the culture of zona-free NT embryos requires the embryos to be cultured individually or anyway separated from each other to avoid aggregation and also requires to prolong the in vitro culture up to the blastocyst stage before transfer. Blastocyst rate is equal or higher with zona-free method as compared to zona-enclosed method while survival after cryopreservation and development to term is comparable. In conclusion, our findings, together with published data, demonstrate that the zona-free system described in this paper can significantly increase the output of NT blastocysts over the conventional zona-enclosed system.

  1. Eesti Energia õlitehase plaan võib paisuda / Raimo Poom

    Index Scriptorium Estoniae

    Poom, Raimo

    2011-01-01

    Eesti Energia peab võimalikuks algsest suurema õlitehase ehitamist. Alternatiivvariantide kohaselt ehitataks tehasesse üks või kaks Enefit-280 seadet lisaks ja õli tootmine suureneks aastas üle 1,5 korra. Diagramm

  2. Eesti Energia tahab julgeolekumaksu / Sandor Liive ; interv. Andrus Karnau

    Index Scriptorium Estoniae

    Liive, Sandor

    2008-01-01

    Intervjuu Eesti Energia juhi Sandor Liivega ettevõtte pikaajalise investeerimisplaani teemal. Sandor Liive tahab kehtestada energiajulgeolekumaksu, mis lisanduks iga inimese ja ettevõtte elektriarvele. Vt. samas: Arengukava; Valitsus pumpab energiahiidu miljardeid; Eesti mattis Ignalina maha

  3. Asjatundjad : poliitikud hävitavad Eesti Energia / Andrus Karnau

    Index Scriptorium Estoniae

    Karnau, Andrus

    2007-01-01

    Ilmunud ka: Postimees : na russkom jazõke 10. sept. lk. 5. Peaminister Andrus Ansip ja valitsuspoliitikud mõistavad hukka Eesti Energia kavandatud elektrienergia 23%-lise hinnatõusu, kuid energiafirma vajab lisaraha põlevkivijaamade vananeva sisseseade uuendamiseks

  4. Eesti Energia pikaajaline investeeringuplaan vajab raha / Helga Koger

    Index Scriptorium Estoniae

    Koger, Helga, 1945-

    2008-01-01

    Eesti Energi juht Sandor Liive küsis valitsuskabinetis tulevikuplaane esitledes ettevõtte aktsiakapitali laiendamiseks juurde 500 miljonit eurot. Eesti Energia on koostanud investeerimisplaani aastateks 2009-2018, lisaks tahab ta kehtestada energiajulgeolekumaksu

  5. Hinnatõus kasvatas Eesti Energia kasumit / Aivar Reinap

    Index Scriptorium Estoniae

    Reinap, Aivar, 1968-

    2005-01-01

    Eesti Energia esimese poolaasta puhaskasum oli 2004. aasta sama perioodiga võrreldes 3,5 korda suurem ehk 200 miljonit krooni. Kuue kuuga investeeris energiakontsern 1,3 miljardit krooni, millest 70% läks elektrivõrkudesse

  6. Eesti Energia sihib hiiglaslikku hinnatõusu / Andrus Karnau

    Index Scriptorium Estoniae

    Karnau, Andrus

    2007-01-01

    Ilmunud ka: Postimees : na russkom jazõke, 5. sept. 2007, lk. 2. Eesti Energia taotleb 2007. aasta märtsikuust 23%-list hinnatõusu. Energiaturu inspektsiooni (ETI) juhi Märt Otsa sõnul pole teada, mis otsuse inspektsioon hinnatõusu küsimuses langetab. Diagramm: Elektri hind tõuseb jõudsalt. Vt. samas intervjuud Eesti Energia juhatuse liikme Tiit Niguliga

  7. Exotic nuclei: another aspect of nuclear structure; Les noyaux exotiques: un autre regard sur la structure nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Dobaczewski, J. [Warsaw Univ., Institute of Theoretical Physics (Poland); Blumenfeld, Y.; Flocard, H.; Garcia Borge, M.J.; Nowacki, F.; Rombouts, S.; Theisen, Ch.; Marques, F.M.; Lacroix, D.; Dessagne, P.; Gaeggeler, H

    2002-07-01

    This document gathers the lectures made at the Joliot Curie international summer school in 2002 whose theme that year was exotic nuclei. There were 11 contributions whose titles are: 1) interactions, symmetry breaking and effective fields from quarks to nuclei; 2) status and perspectives for the study of exotic nuclei: experimental aspects; 3) the pairing interaction and the N = Z nuclei; 4) borders of stability region and exotic decays; 5) shell structure of nuclei: from stability to decay; 6) variational approach of system with a few nucleons; 7) from heavy to super-heavy nuclei; 8) halos, molecules and multi-neutrons; 9) macroscopic approaches for fusion reactions; 10) beta decay: a tool for spectroscopy; 11) the gas phase chemistry of super-heavy elements.

  8. Proceedings of the workshop on nuclear and particle physics at energies up to 31 GeV: new and future aspects

    Energy Technology Data Exchange (ETDEWEB)

    Bowman, J.D.; Kisslinger, L.S.; Silbar, R.R. (eds.)

    1981-03-01

    This report contains the proceedings of the LAMPF Workshop on Nuclear and Particle Physics at Energies up to 31 GeV, New and Future Aspects, held in Los Alamos, January 5 to 8, 1981. Included are invited talks and contributed papers covering recent developments in (a) weak and unified interactions (including discussions of neutrino oscillations), (b) the hadronic description of strong interactions, (c) the quark description of strong interactions, (d) hypernuclei, and (e) new facilities and proposed experiments. One of the motivations for the Workshop was to explore physics justifications for a future high-intensity proton accelerator in this energy regime. Separate abstracts were prepared for papers from this meeting. Six papers were previously included in the data base.

  9. Human factors aspects of non-destructive testing in the nuclear power context. A review of research in the field

    Energy Technology Data Exchange (ETDEWEB)

    Enkvist, J.; Edland, A.; Svenson, Ola [Stockholm Univ. (Sweden). Dept. of Psychology

    1999-02-01

    The present report reviews literature relevant to human factors and non-destructive testing. The purpose is to cover research that has been done, and to find out what still needs to be done to improve inspection performance. Methods of non-destructive testing (e.g., ultrasonics, eddy current) are complex diagnostic tools used by operators to inspect materials, e.g., components of a nuclear power plant. In order to maintain the integrity of a plant, recurrent inspections are made while the components are still in service. To control the quality of inspections, operators have to follow a procedure that determines what equipment to use and how to use it. The procedure also guides the operator in assessment of indications. There are a number of factors that can affect the inspection quality (e.g., heat, time pressure, and fear of radiation). In earlier studies, experience, organizational practices, and work conditions have been shown to affect on the quality of inspections. The quality of inspection performance is considered to benefit from adapting equipment and procedure to man`s abilities and limitations. Furthermore, work conditions and feedback are considered determinants of performance quality. However, exactly how performance is affected by these factors, and the combined effect of them, need to be studied further. Further research is needed in decision criteria, procedure, and work conditions, and their effect on the quality of inspection performance

  10. Aspects of the EOS momentum dependence and of the residual NN cross section on the featuring of nuclear stopping

    CERN Document Server

    Basrak, Z; de la Mota, V

    2016-01-01

    With the semiclassical Landau-Vlasov transport model studied is the stopping observable $R_E$, the energy-based isotropy ratio, for the $^{129}$Xe\\,+\\,$^{120}$Sn reaction at beam energies spanning 12$A$ to 100$A$ MeV. Investigated is the impact of the non-locality of the nuclear mean field, of the in-medium modified nucleon-nucleon ($NN$) cross-section and of the reaction centrality. A fixed set of model parameters yield the $R_E$ values that favourably compares with the experimental ones but only for energies below the Fermi energy $E_F$. Above $E_F$ the agreement is readily possible but by a smooth evolution with energy of the parameter that controls the in-medium modification of $NN$ cross-section. By confronting the simulation correction factor ${\\cal F}$ to be applied to the free $NN$ cross-section with the one which has been deduced from experimental data [Phys.\\ Rev.\\ C\\,{\\bf 90}, 064602 (2014)] one infers that the zero-range mean field almost entirely reproduces it. Also, in accordance with what has b...

  11. Integral programs of energy conservation (exergy) in the petroleum industry; Programas integrales de ahorro de energia (exergia) en la industria petrolera

    Energy Technology Data Exchange (ETDEWEB)

    Rivero Rodriguez, R. [Instituto Mexicano del Petroleo (IMP), Mexico, D. F. (Mexico)

    1995-12-31

    This paper presents some of the fundamental issues related to energy conservation programs in general and to the petroleum industry in particular with the purpose of integrating them both, that is, considering not only the energy issues, but also the ecological and economical aspects. This is achieved by using the two fundamental laws of thermodynamics (the science that studies energy, its characteristics, and its transformations) through the use of the exergy concept, which is a measure of the energy quality and of its withdrawal with respect to the environment. The origins of the present-day technologies, regarding energy conservation, the short, medium and long term general strategies and the implementation stages of the integral programs of energy conservation are presented, and it concludes with a series of general policies aimed at making the energy conservation programs more congruent with the maintenance of a sustainable development. [Espanol] En este trabajo se presentan algunos aspectos fundamentales relacionados con los programas de ahorro de energia en general, y en la industria petrolera en particular, con objeto de lograr que los mismos sean integrales, es decir que consideren no solo los aspectos puramente energeticos, sino tambien los aspectos ecologicos y economicos. Esto se logra utilizando conjuntamente las dos leyes fundamentales de la termodinamica (la ciencia que estudia la energia, sus caracteristicas y sus transformaciones), mediante la utilizacion del concepto de exergia, que es una medida de la calidad de la energia y de su alejamiento con respecto al medio ambiente. Se presentan los origenes de las tendencias tecnologicas actuales en materia de ahorro de energia, las estrategias generales a corto, mediano y largo plazos y las etapas en la implementacion de programas integrales de ahorro de energia, para concluir con una serie de politicas generales tendientes a lograr que los programas de ahorro de energia sean congruentes con el

  12. Parts ja Tiivas peavad aega Eesti Energia börsile tulekuks heaks / Jaana Pikalev

    Index Scriptorium Estoniae

    Pikalev, Jaana

    2010-01-01

    Majandus- ja kommunikatsiooniminister Juhan Partsi sõnul tuleks Eesti Energia aktsiat müüa soodustingimustel. East Capital Exploreri juhi Gert Tiivase hinnangul pole paremat aega Eesti Energia börsile toomiseks kui praegu

  13. "Oravad" tõmbavad Eesti Energia börsileminekule piduri peale / Raimo Poom

    Index Scriptorium Estoniae

    Poom, Raimo

    2010-01-01

    Riigikogu Reformierakonna fraktsiooni kohtumisest Eesti Energia juhi Sandor Liive ning majandus- ja kommunikatsiooniministeeriumi esindajatega. Fraktsiooni esimees Peep Aru räägib küsimustest, mis on seotud Eesti Energia börsilemineku kavaga

  14. Sõnnikust elektri tootmine on Eesti Energia otsustada / Toivo Tänavsuu

    Index Scriptorium Estoniae

    Tänavsuu, Toivo

    2006-01-01

    Seakasvatusfirma Ekseko tahab hakata seasõnnikust elektrit ja soojust tootma, kui Eesti Energia finantseerib projekti. Taani konsultatsioonifirma Energy Consulting Network soovitab rajada koostootmisjaama maksumusega umbes 50-60 miljonit krooni. Lisa: Eesti Energia teeb otsuse lähiajal

  15. Images and symbols in the Argentinean public opinion on the nuclear energy and the environment: 'The necessity of a new communicational strategy'; Imagenes y simbolos en la opinion publica argentina sobre la energia nuclear y el medio ambiente: 'La necesidad de una nueva estrategia comunicacional'

    Energy Technology Data Exchange (ETDEWEB)

    Chahab, M. [Autoridad Regulatoria Nuclear Argentina, A. Del Libertador 8250, Buenos Aires (Argentina)]. e-mail: mchahab@sede.arn.gov.ar

    2006-07-01

    The present work expresses some ideas on certain characteristics of the public opinion in Argentina with regard to the perception that one has of the use of the nuclear energy and the care of the environment. The work tried to explain the reasons that although Argentina has a long tradition and a considerable international prestige in the generation, investigation and controls of the nuclear energy, at the same time, the argentinean public opinion has not shown in favor of the development of the same one, perceiving that the use of this energy would bring problems for the environment. In the work it was to explain some of the reasons of this opinion state that takes it as a psychological state of people, and that would have elements, symbols and negative interior images in people that work as strongly ingrained beliefs so that the fellows ponder to the nuclear option as the one that less it is wanted for the development of the country. The idea was also developed that these images and negative symbols toward the development of the nuclear energy could have origin in information of the massive media of communication, among other sources that could be persuading to the public opinion through the repetition and to study in depth of these messages toward psychological states contrary to the development of the nuclear energy. The present work tried to explore and to describe this internal universe of the argentinean public opinion with the objective of outlining mechanisms, strategies or action plans from the institutions linked to the nuclear energy that try to open the internal space of people toward an approach more positive with the perception of the development of the nuclear energy in its links with the environment. On this objective, the present work outlined the idea that the opening of the perceptive mark in people would have that to generate it 'not in opposition to the existent beliefs' but trying to win alternative mental spaces in the people. In

  16. Aspects of the physics and chemistry of water radiolysis by fast neutrons and fast electrons in nuclear reactors

    Energy Technology Data Exchange (ETDEWEB)

    McCracken, D.R. [Atomic Energy of Canada Limited, Chalk River, Ontario (Canada); Tsang, K.T. [Atomic Energy of Canada Limited, Mississauga, Ontario (Canada); Laughton, P.J

    1998-09-01

    Detailed radiation physics calculations of energy deposition have been done for the coolant of CANDU reactors and Pressurized Water Reactors (PWRs). The geometry of the CANDU fuel channel was modelled in detail. Fluxes and energy-deposition rates for neutrons, recoil ions, photons, and fast electrons have been calculated using MCNP4B, WIMS-AECL, and specifically derived energy-transfer factors. These factors generate the energy/flux spectra of recoil ions from fast-neutron energy/flux spectra. The energy spectrum was divided into 89 discrete ranges (energy bins).The production of oxidizing species and net coolant radiolysis can be suppressed by the addition of hydrogen to the coolant of nuclear reactors. It is argued that the net dissociation of coolant by gamma rays is suppressed by lower levels of excess hydrogen than when dissociation is by ion recoils. This has consequences for the modelling of coolant radiolysis by homogeneous kinetics. More added hydrogen is required to stop water radiolysis by recoil ions acting alone than if recoil ions and gamma rays acted concurrently in space and time. Homogeneous kinetic models and experimental data suggest that track overlap is very inefficient in providing radicals from gamma-ray tracks to recombine molecular products in ion-recoil tracks. An inhomogeneous chemical model is needed that incorporates ionizing-particle track structure and track overlap. Such a model does not yet exist, but a number of limiting cases using homogeneous kinetics are discussed. There are sufficient uncertainties and contradictions in the data relevant to the radiolysis of reactor coolant that the relatively high CHC's (critical hydrogen concentration) observed in NRU reactor experiments (compared to model predictions) may be explainable by errors in fundamental data and understanding of water radiolysis under reactor conditions. The radiation chemistry program at CRL has been focused to generate quantitative water-radiolysis data in a

  17. Health and safety impacts of nuclear, geothermal, and fossil-fuel electric generation in California. Volume 9. Methodologies for review of the health and safety aspects of proposed nuclear, geothermal, and fossil-fuel sites and facilities

    Energy Technology Data Exchange (ETDEWEB)

    Nero, A.V.; Quinby-Hunt, M.S.

    1977-01-01

    This report sets forth methodologies for review of the health and safety aspects of proposed nuclear, geothermal, and fossil-fuel sites and facilities for electric power generation. The review is divided into a Notice of Intention process and an Application for Certification process, in accordance with the structure to be used by the California Energy Resources Conservation and Development Commission, the first emphasizing site-specific considerations, the second examining the detailed facility design as well. The Notice of Intention review is divided into three possible stages: an examination of emissions and site characteristics, a basic impact analysis, and an assessment of public impacts. The Application for Certification review is divided into five possible stages: a review of the Notice of Intention treatment, review of the emission control equipment, review of the safety design, review of the general facility design, and an overall assessment of site and facility acceptability.

  18. Eesti Energia tegi esimesed tehingud elektribörsil / Kerli Nõu

    Index Scriptorium Estoniae

    Nõu, Kerli

    2006-01-01

    Eesti Energia ei avalikusta NordPoolil sõlmitud tehingute mahtu ärisaladuse tõttu. NordPooli börsil hajutavad riske energia tootjad, suurtarbijad ja hulgikauplejad, kes peavad end energia hinnatõusu vastu kaitsma. Järgmise aasta tulevikutehingute hinda mõjutavatest teguritest. Lisa: NordPool

  19. Calls for proposals for Indirect IDT Action within the specific (Euratom) Research and Training Programme on Nuclear Energy (2002-2006); Convocatorias de propuestas de accion indirecta de IDT dentro del progrma especifico (Euratom) de investigacion y formacion sobre energia nuclear (2002-2006)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    The official diary of the European Union C 273 of 14 November, 2003, published the Calls for Indirect IDT Action for the Euratom Research and Training Programme on Nuclear Energy. The complete text of these Calls are reproduced in page 29. (Author)

  20. Clean generation of electric energy; Generacion limpia de energia electrica

    Energy Technology Data Exchange (ETDEWEB)

    Ramirez, Juan M.; Torres, Emmanuel [Centro de Investigacion y de Estudios Avanzados (CINVESTAV), Unidad Guadalajara (Mexico)

    2006-10-15

    This article deals on the existing alternatives of renewable energy for generation of electricity free from polluting sequels within the Mexican territory and presents a global overview on the electricity generation in Mexico. Wind power, hydraulic energy, biomass, photovoltaic and fuel cells are sources of renewable energy that could contribute to Mexico's sustainable development, for this reason it is discussed on the main sources of renewable energy in Mexico - solar and wind energy, mini-hydraulic, biomass and geothermal -, on their development and evolution, cost, insertion projects and obstacles for their correct development in this country. [Spanish] Este articulo versa sobre las alternativas de energia renovable existentes para una generacion de electricidad libre de secuelas contaminantes dentro del territorio mexicano y presenta un panorama global sobre la generacion de electricidad en Mexico. La energia eolica, hidraulica, biomasa, fotovoltaica y las celdas de combustible son fuentes de energia renovable que podrian contribuir al desarrollo sustentable de Mexico, por esto se arguye sobre las principales fuentes de energia renovable en Mexico -energia solar, eolica, minihidraulica, biomasa y geotermia-, sobre su desarrollo y evolucion, costo, proyectos de insercion y obstaculos para su correcto desarrollo en ese pais.

  1. Avaliação da indústria de equipamentos para aproveitamento de fontes renováveis de energia

    Directory of Open Access Journals (Sweden)

    Fernando Sérgio Bonanni

    1991-12-01

    Full Text Available O presente trabalho, incentivado pelo Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq, procurou avaliar e identificar o "estado da arte" da tecnologia industrial brasileira de equipamentos de pequeno e médio porte para aproveitamento de fontes renováveis de energia. O projeto atuou nas seguintes áreas: Pequenas Centrais Hidrelétricas (PCH, Energia Solar, Energia Eólica, Biodigestores e Equipamentos de Biogás e Gaseificadores de combustíveis sólidos (Gasogênios, não somente "identificando" como "localizando" os atuais fabricantes de equipamentos utilizados no aproveitamento e renovação da energia. O projeto focalizou ainda os aspectos econômicos e financeiros das indústrias pesquisadas, tais como: caracterização e evolução recente, sua produção industrial em mercado atual e futuro, além das suas dificuldades na produção e comercialização de seus produtos.This work, sponsored by the Brazilian Research Council, carried out a sectorial appraisal of the manufacturers of equipment that use renewable energy sources. The survey was executed in Small Hydroelectric Plants, Solar Energy, Eolic Energy, Biogas and Gasification of solid combustible identifying the manufacturers and their localization. The survey pointed out the industries economical and financial aspects, as well as, the difficulties in producing and trading their products.

  2. Standardization for electric energy saving; Normalizacion para el ahorro de energia electrica

    Energy Technology Data Exchange (ETDEWEB)

    Reyes Diaz, Arturo [Fideicomiso de Apoyo al Programa de Ahorro de Energia del Sector Electrico (FIDE), Mexico, D. F. (Mexico)

    1993-12-31

    This work describes shortly the current legislation on the standardization; as well as the participation of the entities Fideicomiso de Apoyo al Programa de Ahorro de Energia del Sector Electrico (FIDE) and Programa de Ahorro de Energia (PAESE) in the consulting committees, for the elaboration of the Mexican official standards focussed to electric power saving. [Espanol] El presente trabajo, describe brevemente la legislacion actual sobre la normalizacion; asi como la participacion de las entidades Fideicomiso de Apoyo al Programa de Ahorro de Energia del Sector Electrico (FIDE) y Programa de ahorro de Energia (PAESE) en los comites consultivos, para la elaboracion de normas oficiales mexicanas enfocadas al ahorro de energia electrica.

  3. Avaliação da conversão da energia fotovoltaica em sistemas isolados

    OpenAIRE

    Carneiro de Oliveira, Kleber

    2007-01-01

    Esta dissertação apresenta a importância do uso da energia solar fotovoltaica em relação ao impacto ambiental causado pelas fontes de energia convencionais. O fato da energia solar fotovoltaica ser uma energia livre de poluentes e crescente devido à diminuição dos preços dos painéis fotovoltaicos a deixa em condições de competir com as outras fontes de energia. São apresentados aspectos gerais sobre geração fotovoltaica e são discutidos o princípio de funcionamento, o processo ...

  4. Renewable energy and technological development; Energia renovable y desarrollo tecnologico

    Energy Technology Data Exchange (ETDEWEB)

    Covarrubias Ramos, Rogelio [Fideicomiso para el ahorro de energia, (Mexico)

    2007-06-15

    In this presentation is widely described the work carried out by the Trust Fund for Electrical Energy Savings (FIDE) with reference to renewable energy foster. In the first part, it is found the FIDE's mission, which is focused on achieving the efficient use of the energy. Then, there are quiet briefly described the processes -carried out by the FIDE- in favour of the groundbreaking technology that achieves to decrease the energy squandering. In addition, there are mentioned different means boosting the energy savings. Then, there are described the issues the energy system should change in order to improve the actual situation of many Mexicans. There are briefly mentioned not only the environmental but also the social benefits of the use of renewable energy; besides, there are given the necessary elements in order to make it possible. Then, there are explained why the use of renewable energy would be profitable. Finally, it is described the methodology that should be followed in case it is wanted to find sponsors up to 100% for a project related to improvement of the energy production. [Spanish] Esta presentacion describe ampliamente la labor que realiza el Fideicomiso para el ahorro de energia (FIDE) en relacion con el fomento de la energia renovable, asi como el desarrollo de tecnologias que refuercen el uso de este tipo de energia. En la primera parte, se encuentra la mision del FIDE, que se enfoca en lograr que el uso de la energia sea apropiado. Enseguida, de forma breve se describen los procesos que realiza el FIDE en favor de la tecnologia innovadora que haga decrecer el dispendio de energia. Luego, se explican las aspectos endebles del sistema energetico de Mexico. Se describen escuetamente los beneficios, no solo ambientales sino tambien sociales, del uso de energia renovable; ademas, se mencionan los elementos necesarios para que esto pueda lograrse. Mas adelante, se dan las razones por las que para Mexico seria rentable el uso de energia renovable

  5. Utilization of the computational technic for the promotion and diffusion of the energy conservation practice; Utilizacion de tecnicas computacionales para promocionar y difundir el ahorro de energia

    Energy Technology Data Exchange (ETDEWEB)

    Kemper Valverde, N. [Laboratorio de Inteligencia Artificial, Instituto de Ingenieria, UNAM, Mexico D. F. (Mexico)

    1995-12-31

    In this paper are presented the developments obtained through the application of the new computational technologies in the diffusion and promotion tasks of energy efficient use and conservation. The most relevant aspects are described of three multimedia courses that were designed in order to increase the possibilities of offering personal training in efficient energy technic, as well as to have on hand totally open consulting and interactive tools. The courses that are described are: ``Design of Energy Conservation Programs for the Industry``, ``Energy Conservation in Combustion Equipment`` and ``Energy Cogeneration Technologies.`` On another subject, an analysis is also made of the possibilities for the development and application of expert systems that advise and give support to the work of technicians and engineers dedicated to energy conservation. The main characteristics of an expert system to give support to the energy analysis of lighting industrial systems, malls, buildings and hotels are also described. [Espanol] En este trabajo se presentan los desarrollos obtenidos por la aplicacion de las tareas de difusion y promocion del uso eficiente y ahorro de energia. Se describen los aspectos mas relevantes de tres cursos multimedia que fueron disenados con el objeto de incrementar las posibilidades de brindar capacitacion individualizada en tecnicas energeticas eficientes, asi como de contar con herramientas de consulta totalmente abiertas e interactivas. Los cursos que se describen son: ``Diseno de Programas de Ahorro de Energia en la Industria,`` ``Ahorro de Energia en Equipos de Combustion`` y ``Tecnologias de Cogeneracion de Energia.`` Por otro lado, tambien se hace un analisis de las posibilidades para el desarrollo y aplicacion de sistemas expertos que asesoren y apoyen el trabajo de tecnicos e ingenieros dedicados al ahorro de energia. Se describen las caracteristicas principales de un sistema experto disenado para brindar apoyo en analisis energeticos

  6. Potential of bioclimatic architecture for energy saving in buildings; Potencial de la arquitectura bioclimatica para ahorro de energia en edificios

    Energy Technology Data Exchange (ETDEWEB)

    Garcia Chavez, Jose Roberto [Universidad Autonoma Metropolitana-Azcapotzalco, Mexico, D. F. (Mexico)

    1994-12-31

    The design and construction of current buildings has been characterized, most of all, in the last 30 years, for the lack of consideration in the design process of aspects that nowadays represent a fundamental importance. These aspects are related to energy conservation and environmental protection, with man as the main center of attention for the optimum satisfaction of its physiological as well as psychological needs. In this paper are presented the causes for the lack of consideration of the mentioned aspects and guidelines to follow are set forth for their integration in the design process. Also the architecture potential with a bioclimatic approach is analyzed, for energy saving in buildings. [Espanol] El diseno y construccion de edificios contemporaneos se ha caracterizado, sobre todo en los ultimos treinta anos, por la falta de consideracion en el proceso de diseno, de aspectos que hoy en dia revisten una importancia primordial. Estos aspectos se relacionan con la preservacion de la energia y del medio ambiente, teniendo al hombre como principal centro de atencion, para la satisfaccion optima de sus necesidades, tanto fisiologicas como psicologicas. En este trabajo, se presentan las causas de la falta de consideracion de los aspectos antes citados y se plantean las pautas a seguir para su integracion en el proceso de diseno. Asi mismo, se analiza el potencial de la arquitectura con un enfoque bioclimatico, para ahorro de energia en los edificios.

  7. Energy conservation in ice manufacturing; Ahorro de energia en la fabricacion de hielo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-12-31

    This paper shows the results of the energy diagnosis study for ice manufacturing industries. The identified opportunities for conservation and efficient use of energy have allowed the reduction of the electric bill, modernizing at the same time, its installations and addressing inherent aspects of the use of energy producing items; in which the estimated investments are recovered in its major part in a period of a year, the goodness of the investments propitiate the growth and competitiveness required in these days. [Espanol] En este documento se exponen los resultados del estudio del diagnostico energetico para industrias productoras de hielo. Las oportunidades de ahorro y uso eficiente de energia identificadas, han permitido reducir la facturacion energetica, a la par de modernizar sus instalaciones y atender aspectos inherentes al uso de energeticos; en lo cual las inversiones estimadas se recuperan en su mayoria en un ano, las bondades de las inversiones propician un crecimiento y competitividad requerida en estos dias.

  8. Evaluation of some aspects of the competitive model of the electric sector of 1993-2003 and its impact on the risk of energy deficit; Avaliacao de alguns dos aspectos do modelo competitivo eletrico de 1993-2003 e seus impactos quanto ao risco de deficit de energia

    Energy Technology Data Exchange (ETDEWEB)

    Moura, Ana Maria [Companhia de Distribuicao de Gas de Santa Catarina - SCGAS, Florianopolis, SC (Brazil); Kaehler, Jose Wagner Maciel [Pontificia Univ. Catolica do Rio Grande do Sul (PUCRS), Porto Alegre, RS (Brazil)

    2004-07-01

    We search with this article to identify and to analyze some of the aspects of the competitive model of the electric sector in the last decade, as well as its impacts so that the possibility of risk of energy deficit was an imminent fact. Particularly, we evaluate under three aspects: the long transition of the state model for the private one; some regulations risks of the model; joint absence, in the conception and also in the implantation of the reforms of the electric sector, oil and gas that ahead of the stagnation of the agents that resulted in the black out of 2001. (author)

  9. Energia avastuskeskus = Energy discovery center / Margit Aule ; kommenteerinud Kristiina Raid

    Index Scriptorium Estoniae

    Aule, Margit, 1981-

    2015-01-01

    Energia avastuskeskuse (Põhja pst 29/31, Tallinn) interjöörist ja ekspositsiooni kujundusest. Autor Margit Argus (KAOS Arhitektid); ekspositsiooni kujundus Margit Argus, Margit Aule; arhitektid Sander Aas, Margit Aule, Pelle Sten Viiburg (KAOS Arhitektid). Eesti Sisearhitektide Liidu aastapreemia 2014/2015 parima ajaloolise interjööri eest

  10. Eesti Energia astub Lätis Latvenergo varvastele / Harry Tuul

    Index Scriptorium Estoniae

    Tuul, Harry

    2007-01-01

    1. juulil 2007 avaneb EL-i elektriturg konkurentsile, mida Eesti Energia kasutab ära Läti turule sisenemiseks, lootes haarata 15% sealsest turust. Kommenteerib Aivar Tihane. Vt. samas: Sirje Rank. Euroopa Liidu ühtne energiaturg edeneb visalt

  11. Eesti Energia emissioonis on koht ka rahvaaktsiatel / Raimo Poom

    Index Scriptorium Estoniae

    Poom, Raimo

    2010-01-01

    Eesti Energia võimaliku aktsiaemissiooni korral tagatakse võimalus soetada aktsiaid ka jaeinvestoritel. Majandus- ja kommunikatsiooniminister Juhan Partsi sõnul tugevdaks see Eesti inimeste huvi energeetika vastu, samuti võimaldaks see paigutada oma sääste Eesti arenguga seotud ettevõttesse

  12. Eesti Energia vajab rohkem põlevkivi / Andrus Karnau

    Index Scriptorium Estoniae

    Karnau, Andrus

    2010-01-01

    Eesti Energia börsileminek tingib vajaduse senisest suuremas koguses põlevkivi kaevandada, põlevkivi riiklik arengukava seab aga eesmärgiks vähendada põlevikivi aastane kaevandamismaht 15 miljoni tonnini juba 2015. aastaks

  13. Eesti Energia tahab Liivi lahes broneerida hiigeltuulepargid / Raimo Poom

    Index Scriptorium Estoniae

    Poom, Raimo

    2010-01-01

    Eesti Energia taotleb valitsuselt viie ala broneerimist Liivi lahes, et analüüsida seal üle 300 meretuuliku püstitamise võimalikkust. Nende koguvõimsus oleks 1500 MW, Eleringi uuringu kohaselt võiks Eestis probleemideta töötada tuuleparke koguvõimsusega 600 MW

  14. Konverents "Turg. Tööstus. Energia." / T Tiidemann

    Index Scriptorium Estoniae

    Tiidemann, T

    1993-01-01

    Rootsi organisatsioon SWENESCO (Swedish Network of Engineers and Seientists for Conversion - Rootsi inseneride ja teadlaste võrk konversiooni eest) korraldab konverentsi praktilistest kogemustest Rootsi - Eesti tööstuse ja energia tehnikaalastes projektides 18-20 juuni 1993 Pirita Purjespordikeskuses

  15. Eesti Energia salajased uuringud / Sulev Vedler, Tarmo Vahter

    Index Scriptorium Estoniae

    Vedler, Sulev, 1970-

    2007-01-01

    Ilmunud ka: Infopress 2. märts nr. 9 lk. 160. Hoitakse salajas Briti konsultatsioonifirma Lexicon Partners poolt koostatud uuringut, mida peaks Eesti riik peale hakkama oma osalusega monopoolses elektriettevõttes Eesti Energia. Majandusminister Edgar Savisaar lasi uuringu ministeeriumisse tuua ning andis juristidele ülesande analüüsida, kui palju saab dokumendist avaldada. Vt. samas: Elektri hind

  16. BALANÇO DE ENERGIA EM UMA CULTURA DE MILHETO

    Directory of Open Access Journals (Sweden)

    Sandro Luis Petter Medeiros

    1993-04-01

    Full Text Available Em uma cultua de milheto forrageiro (Pennisetum americanum, Leek cv. pérola, em Eldorado do Sul, com coordenadas de 30°05'22"S e 51°40'18"W e 40m de altitude, foram determinados os componentes do balanço de energia na ano agrícola de 1988/89. O fluxo de calor latente de evaporação utilizou a maior porção da energia disponível no sistema, sendo uma função direta da disponibilidade hídrica no solo. O fluxo de calor sensível foi o segundo termo no consumo de energia disponível, variando segundo uma função inversa da disponibilidade hídrica. O fluxo de calor no solo variou inversamente ao índice de área foliar, utilizando a menor fração do saldo de radiação. Em geral, os fluxos de calor sensível no ar e no solo foram positivos somente nas primeiras horas da manhã e ao final da tarde. Em alguns horários houve aporte de energia por advecção, invertendo o gradiente térmico vertical do ar e incrementando o fluxo de calor latente de evaporação.

  17. Energy and economy; Energia y Economia

    Energy Technology Data Exchange (ETDEWEB)

    Diaz Fernandez, J. L.

    2010-07-01

    This article, which reflects the authors presentation at the opening of the Congress of the Spanish Nuclear Society, examines the relationship between the Spanish economy and energy consumption in our country compared with major industrialized countries. (Author)

  18. Quality studies of the energy in the electric net of the gathering warehouse of reusable parts and contaminate oils of the nuclear power plant Laguna Verde; Estudios de calidad de la energia en la red electrica del almacen de acopio de partes reusables y aceites contaminados (CCAC) de la Central Nuclear Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Tijerina S, F.; Vargas A, A.; Cardenas J, J., E-mail: francisco.tijerina@cfe.gob.mx [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Subgerencia de Ingenieria, Carretera Cardel-Nautla Km 42.5, Veracruz (Mexico)

    2012-10-15

    In the industry exist the high costs by faults of electronic and electric equipment s, due to during the design process, installation, tests and operation of these equipment s, is not had appropriate detection equipment to carry out quality studies of the energy. These studies give an important support to know that occurs in an electric net, the cause of the anomalous behavior of the equipment s and this way to avoid the expensive faults carrying out necessary engineering adaptations in an electric net. The elements of the electricity that are determined are the tension, current and frequency that are inside acceptable operational parameters that facilitate the operation and constant operation of the equipment s, free of interruptions and failures. The application of the quality studies of the energy is growing little by little in Mexico for the problems solution in the equipment s. This field is also developing new techniques and technologies integrated in the equipment s for its monitoring detection and protection. The present work offers the results of the first Quality Study of the Energy in the nuclear power plant of Laguna Verde to solve the problem in the gathering warehouse of reusable parts and contaminate oils, in which the failure of the two radiation monitors of the gassy effluent of ventilation HVAC of the warehouse took place. (Author)

  19. Technical evaluation of the electrical, instrumentation, and control design aspects of the override of containment purge valve isolation and other engineered safety feature signals for the Fort Calhoun Nuclear Power Plant

    Energy Technology Data Exchange (ETDEWEB)

    Hackett, D.B.

    1980-01-01

    This report documents the technical evaluation of the electrical, instrumentation, and control design aspects of the override of containment purge valve isolation and other engineered safety feature signals for the Fort Calhoun nuclear power plant. The review criteria are based on IEEE Std-279-1971 requirements for the safety signals to all purge and ventilation isolation valves. This report is supplied as part of the Selected Electrical, Instrumentation, and Control Systems Issues Program being conducted for the US Nuclear Regulatory Commission by Lawrence Livermore Laboratory.

  20. Energy, social aspects and natural resources in agrarian reform projects: evaluation of life conditions; Energia, sociedade e recursos naturais em projeto de reforma agraria: avaliacao das condicoes de vida, possibilidades e dificuldades no assentamento Ipora (Rio Preto da Eva e Itacoatiara - AM)

    Energy Technology Data Exchange (ETDEWEB)

    Franca, Breno de Souza [Amazonas Univ., Manaus, AM (Brazil). Nucleo de Eficiencia Energetica (NEFEN)]. E-mail: nefen_ua@objetivomao.br

    2000-07-01

    This paper presents an account of the activities and information collected in the research project 'Alternative technologies to the rural area: technological, economic and social aspects', developed in the Ipora Placement Project (Rio Preto da Eva and Itacoatiara - Amazonas State, Brazil). The actions developed in this project were based on the research-action method and are focused in the energetic matters, however the social, economic and environmental aspects of each energetic alternative discussed were always considered and proved to be decisive in the decision-taking process of the project activities. This paper introduces a discussion of the referred Placement in that context and also tries to foster new studies, evaluations and conclusions about it. (author)

  1. Efficiency of the low energy detection system for the measurement of {sup 235} U in lung of the Nuclear Regulatory Authority; Eficiencia del sistema de deteccion de baja energia para la medicion de {sup 235} U en pulmon de la Autoridad Regulatoria Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Spinella, M.R.; Krimer, M.; Gregori, B.N.; Rojo, A.M. [Autoridad Regulatoria Nuclear, Av. Del Libertador 8250 (C1429BNP), Buenos Aires (Argentina)]. e-mail: mspinell@cae.arn.gov.ar

    2006-07-01

    This work presents the results of the calibration process of the detection system of {sup 235} U in lung of the Nuclear Regulatory Authority. The phantom used in the calibration is the denominated Lawrence Livermore Realistic Phantom, provided of lungs and active nodules and of 4 thoracic covers that its simulate muscular tissue with thickness that vary between 1.638 and 3.871 cm. The spectra are acquired by four detecting of denominated LEGe ACTII Canberra marks, each one with an active area of 3800 mm{sup 2}, a diameter of 70 mm and a thickness of 20 mm, the sign is processed by a SYSTEM100 multichannel and the spectra are analyzed with the GENIE2K program. The detectors are suspended by mobile structures that allow to vary the position with regard to a horizontal stretcher that defines the measurement geometry. The whole system is located in the interior of an armored enclosure of 200 x 150 x 200 cm{sup 3} of steel of 15 cm thickness, inside recovered with layers of 0.5 cm lead and 0.05 cm cadmium. The total weight of the enclosure is 40 ton. For the described system the efficiency curves versus muscular thoracic tissue thickness (ETM) corresponding to the energy of 143.76, 163.358 and 185.72 keV of the {sup 235} U radioisotope were obtained. Its were also practiced displacements of those detectors of approximately 1 cm with respect to the reference position and its were analyzed the corresponding changes of magnitude in the efficiencies. The obtained variations oscillate, for vertical displacements, between 5% and 7.8% for the smallest value in ETM (1.638 cm) and between 4.2% to 6.7% for the ETM 3.871 cm. While for the practiced lateral displacements, the variations go from 4% to 15%. The detection limits corresponding to each energy and thickness were determined. The results showed for the photopeak of 185.72 keV, the more outstanding in the evaluations that saying limit it oscillates between 3.7 and 6.4 Bq {sup 235} U inside the considered thickness range

  2. Asjatundja soovitab Eesti Energia kiiresti börsile viia / Tiit Nigul ; interv. Andrus Karnau

    Index Scriptorium Estoniae

    Nigul, Tiit

    2008-01-01

    Eesti Energia endine juhatuse liige vastab küsimustele, mis puudutavad riigi energiapoliitikat ja -varustust, elektrienergia hinnatõusu, energiafirma börsileminekut, tasakaalu konkurentsiameti ja Eesti Energia vahel, ettevõtte tulusid, Narva Elektrijaamade tootmisvõimsust, koostööd Leedu tuumajaama projektiga, elektriturgu, ettevõtja Urmas Sõõrumaa süüdistamist siseinfo kasutamises, Eesti Energia strateegilist eesmärki saavutada aastaks 2015 kaks miljonit klienti

  3. Analüütikud soovitavad Eesti Energia börsile viia / Piret Reiljan

    Index Scriptorium Estoniae

    Reiljan, Piret, 1983-

    2008-01-01

    Kohalikud analüütikud soovitavad viia Eesti Energia börsile, kuna see elavdaks aktsiaturgu ja tõmbaks ligi välisinvestoreid. Vt. samas: Raivo Vare: raske aeg töötab Eesti Energia börsiletoomise kasuks; Analüüs ootab pääsu valitsuskabinetti; Juhid ei püsi enam Eesti Energias. Diagrammid: Majandusnäitajad; Varade maht

  4. Applications of the renewable energies; Aplicaciones de las energias renovables

    Energy Technology Data Exchange (ETDEWEB)

    Gomez Rocha, Luis Martin [Comision Nacional para el Ahorro de Energia, Mexico, D.F. (Mexico)

    2001-07-01

    The solar energy manifests itself in different forms and its application has been fundamental for the humankind development. These forms are known as renewable energies, since they are energy forms that are renewed or remade with time or that are so abundant on Earth, that they will last for hundreds or thousands of years, either we use them or not. The main advantage of the utilization of the renewable energies in comparison with hydrocarbons is the one of having smaller impact on the environment, which brings about the conservation of nonrenewable resources, and to postpone its exhaustion. They allow the distributed generation, diminishing the power losses in the transmission and distribution systems, which increases the overall efficiency. In addition they can be the drive for regional development and generation of employment, because when having applications in remote zones and being a field still not completely developed in Mexico, the possibility exists of enabling professionals and technicians. From the point of view of the power sector, the renewable energies extend the supply and availability of energy, making more flexible and independent the operation and reliability of the national power system. [Spanish] La energia solar se manifiesta de diversas formas y su aplicacion ha sido fundamental para el desarrollo de la humanidad. A estas formas se les conoce como energias renovables, ya que son formas de energia que se van renovando o rehaciendo con el tiempo o que son tan abundantes en la tierra, que perduraran por cientos o miles de anos, las usemos o no. La principal ventaja del aprovechamiento de las energias renovables en comparacion con los hidrocarburos es la de tener menor impacto al medio ambiente, lo que trae consigo la conservacion de recursos no renovables, y posponer su termino. Permiten la generacion distribuida, disminuyendo las perdidas energeticas en los sistemas de transmision y distribucion, lo que incrementa la eficiencia general. Ademas

  5. The awareness of the functional and near population with the relation to the research nuclear reactor IEA-R1

    Energy Technology Data Exchange (ETDEWEB)

    Vanni, Silvia R.; Martins, Maria da Penha S. [Centro Tecnologico da Marinha (CTMSP), SP (Brazil); Sabundjian, Gaiane, E-mail: gdjian@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2011-07-01

    After the natural accident that hit Japan in the beginning of March of 2011, and that ended into an accident of great proportions in the nuclear installations of Fukushima, it has now the debate over the lack of information that the population in general has over the nuclear energy. The dissemination of information, about the operation and security of the nuclear reactors, has the purpose of softening the effect that the pessimistic atmosphere has over its using. This study was reinforced by the memories of serious consequences due to other nuclear accidents that have already happened (Chernobyl, Three-Mile and Hiroshima/Nagasaki event), bringing insecurity, fear and even revenge from part of the public. Over all, people are not sufficiently informed about the positives and negatives aspects of the nuclear energy. It is necessary the adoption of a clear and aware policy with the population, about the pacific use of nuclear energy. Today, the international and national organizations of control of nuclear energy, the International Atomic Energy Agency (IAEA) and the Comissao Nacional de Energia Nuclear (CNEN), have respectively, published information about this subject using a more professional way and of hard access for the public in general. This work has the goal of checking the level of information that the population of workers and individuals of the close public to the research nuclear reactor IEA-R1, located in the Institute of Nuclear Research (IPEN), University City, Sao Paulo, Brazil, has over it. The way used for this study, involved questionnaires with straight questions and of simple language over the subject, to people of all different social, economic and cultural classes, from 12 to 80 years old. From the results found after this work, it was verified the necessity to elaborate a project of awareness of information and clarification about the nuclear energy, using ways of communication that exist and that are easy for the public to understand. (author)

  6. Kätega ravimine ehk me kõik oleme energia / Kerttu Soans

    Index Scriptorium Estoniae

    Soans, Kerttu, 1961-

    2011-01-01

    Erinevatest energia vahendamisel põhinevatest psühhotehnikatest ja ravimeetoditest: reiki, Silva ultra, maagiline maatriks ehk MM, elektromagnetvälja tasakaalustamise tehnika EMF, kvantpuudutus, bioenergeetika

  7. Operational period for the nuclear power plant Borssele. Memo on aspects with regard to decision making on the operational period for the nuclear power plant Borssele; Bedrijfsduur kerncentrale Borssele. Notitie over aspecten die een rol spelen bij de besluitvorming over de bedrijfsduur van de kerncentrale Borssele

    Energy Technology Data Exchange (ETDEWEB)

    Vos, D

    2005-04-01

    A number of aspects with respect to the closure of the nuclear power plant Borssele in the Netherlands are discussed: nuclear safety and service life; environmental aspects; proliferation and terrorism; judicial aspects; cost; other (comparisons with closures in other countries, employment, supply security); and a state-of-the-art with regard to a motion that was introduced by a delegate of the Dutch parliament (Spies) in 2004. [Dutch] In deze notitie worden enkele met de sluiting samenhangende aspecten nader toegelicht, te weten: nucleaire veiligheid en levensduur; milieuaspecten; proliferatie en terrorisme; juridische aspecten; kostenaspecten; overige aspecten (sluitingsregelingen in het buitenland, werkgelegenheid en leveringszekerheid); en stand van zaken met betrekking tot de uitvoering van de motie Spies van juli 2004.

  8. Dispositivo de armazenamento de energia utilizando polianilina e eletrolito polimerico

    OpenAIRE

    Silvia Cilene R. Catharino

    2000-01-01

    Resumo: Recentemente, os capacitores eletroquímicos têm merecido muita atenção na área de armazenamento de energia, devido a sua possível aplicação em veículos elétricos e aparelhos eletrônicos. O desenvolvimento nessa área requer um armazenamento de energia com alta densidade e tempos curtos de carga e descarga. Polímeros condutores tem a vantagem sobre óxidos, como eletrodos para capacitores, porque são fáceis de processar e tem baixo custo de produção. Neste trabalho são mostrados resultad...

  9. Eesti Energia senine juhatus jätkab veel vähemalt aasta / Anneli Ammas, Toivo Tänavsuu

    Index Scriptorium Estoniae

    Ammas, Anneli, 1962-

    2005-01-01

    Eesti Energia nõukogu otsustas jätta ettevõtte juhatuse veel aastaks ametisse, juhikonkursi korraldamise kohta otsust ei langetatud. Nõukogu liikmete kommentaare. Lisa: Eesti Energia kasvatas eksporti

  10. SOVT analysis of the nuclear industry in Mexico; Analisis FODA de la industria nuclear en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Fernandez R, E.; Hernandez B, M. C., E-mail: edelmiraf@yahoo.com [Instituto Tecnologico de Toluca, Division de Estudios de Posgrado, Av. Instituto Tecnologico s/n, Ex-rancho La Virgen, 52140 Metepec, Estado de Mexico (Mexico)

    2011-11-15

    In this work the analysis of strengths, opportunities, vulnerabilities and threats (SOVT) of the nuclear industry in Mexico is presented. This industry presents among its strengths that Mexico is a highly electrified country and has a good established normative mark of nuclear security. Although the Secretaria de Energia in Mexico, with base to the exposed in the Programa Sectorial de Energia 2007-2012, is analyzing the convenience of the generation starting from this source, considering the strong technological dependence of the exterior and the limited federal budget dedicated to this field. As a result of the analysis of the SOVT matrix, were found a great number of strengths that threats, although the vulnerabilities list is major to the strengths, the opportunities list is the bigger. Therefore, the nuclear industry can be a sustainable industry, taking the necessary decisions and taking advantage of the detected opportunities. (Author)

  11. Renewable energies. A challenge and an opportunity for Central America; Energias renovables. Un reto y una oportunidad para America Central

    Energy Technology Data Exchange (ETDEWEB)

    Guevara, Leo; Castro S, Rene [Instituto Centroamericano de Administracion de Empresas (INCAE) (Costa Rica)

    2007-07-15

    There are analyzed in this working paper the following aspects: the Central America countries and their relations with the regional energy potencies -Mexico and Venezuela- and the impact they have in the energy supply. There are also explore the following aspects: the San Jose Agreement linked to the fossil fuels supply, the emerging scope boosted by Brazil and Colombia regarding to the alternative fuels. [Spanish] Este trabajo analiza los paises centroamericanos y sus relaciones con las potencias energeticas regionales como Mexico y Venezuela, y como estas impactan el suministro de energia en la region. Tambien se exploran mecanismos como el Pacto de San Jose, ligado al suministro de combustibles fosiles y las oportunidades emergentes impulsadas por Brasil y Colombia con combustibles alternativos.

  12. Energy of our planet; La energia de nuestro planeta

    Energy Technology Data Exchange (ETDEWEB)

    Torres Alvarado, Ignacio; Santoyo Gutierrez, Edgar [Centro de Investigacion en Energia (CIE) de la UNAM, Temixco, Morelos (Mexico)

    2010-07-01

    The total heat flowing from the Earth's interior to the surface is estimated at {approx}42 TW (1012 watts) of which 19% comes from the crust, the 76% comes from the mantle and the 5% comes from the nucleus. The ability to drive the heat of the rocks is very low, causing the need of hundreds of millions of years to exhaust this energy resource. Based on the properties of the renewable heat flow and the long geological times required for its exhaustion, the Earth energy is considered by many scientists as a source of inexhaustible renewable energy, and by its natural availability in all parts of our planet, perhaps the best distributed, together with solar energy. One of the most important advantages of geothermal energy is that its energy can be used not only to generate electric power, but in a large number of applications or direct uses: the heating of buildings, greenhouses or incubators; aquaculture; in various industrial processes (drying products, food packaging, paper manufacturing, chemicals, etc.); balneology for recreational purposes and medicines, and many other applications. In fact, geothermal applications can be integrally one after another or in processes in cascade to fully utilize its energy content. [Spanish] El calor total que fluye del interior de la Tierra hacia la superficie se estima en {approx}42 TW (1012 watts) del cual 19% proviene de la corteza, el 76% proviene del manto y el 5% proviene del nucleo. La capacidad para conducir el calor de las rocas es muy baja, lo que ocasiona que se necesiten cientos de millones de anos para agotar este recurso energetico. Basado en las propiedades renovables del flujo de calor y los largos tiempos geologicos requeridos para su agotamiento, la energia de la Tierra es considerada por muchos cientificos como una fuente de energia renovable, practicamente inagotable, y por su disponibilidad natural en todo nuestro planeta, quizas la mejor distribuida, junto con la energia solar. Una de las ventajas mas

  13. Eesti Energia nõukogu liikmed Jaotusvõrgu hinnatõusutaotlust kommenteerima ei kipu / Katre Pilvinski

    Index Scriptorium Estoniae

    Pilvinski, Katre

    2010-01-01

    Eesti Energia nõukogu liige Kalle Palling kommenteerib peaminister Andrus Ansipi öeldut, et Eesti Energia investeeringud tuleb üle vaadata. Nõukogu liikme Rein Kilgi sõnul tunduvad talle rünnakud Eesti Energia vastu ülekohtused

  14. ECOEFICIENCIA DE LA PROPUESTA DE GENERAR ENERGIA SOLAR FOTOVOLTAICA EN EL FUNDO DE LA UCSM IRRIGACION MAJES PARA SU AUTOABASTECIMIENTO

    OpenAIRE

    2015-01-01

    DESCRIPCION DEL FUNDO CONSUMO DE ENERGÍA ELECTRICA EN EL FUNDO PROPUESTA DEL SISTEMA SOLAR FOTOVOLTAICO DIMENSIONAMIENTO DEL SISTEMA SOLAR FOTOVOLTAICO INVERSION REQUERIDA METODOLOGIA EMISIONES DE GASES - ENERGIA PROVENIENTE DE LA RED EMISIONES DE GASES - ENERGIA SOLAR FOTOVOLTAICA AISLADA EMISIONES DE GASES - ENERGIA SOLAR FOTOVOLTAICA CON INTERCONEXION A LA RED ANALISIS DE ECOEFICIENCIA EVALUACION DE LA ECOEFICIENCIA - RESULTADOS

  15. Themes in nuclear law; Temas de Derecho Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    The nuclear law was analyzed during a workshop. The main aspects were: the law of population to access to information on nuclear energy and the relationship between the Regulator Organism and the nuclear power plants managers.

  16. Roheline energia läheb müüki topelthinnaga / Ervin Soon

    Index Scriptorium Estoniae

    Soon, Ervin

    2001-01-01

    Eesti Energia on märtsi keskel käivitanud Rohelise Energia kampaaniaga leidnud võtte, kuidas kaks korda kõrgema elektri müügihinnaga katta alternatiivenergia kohustusliku kokkuostu järjest kasvavaid kulusid

  17. Eesti Energia börsile! Argus riputaks ta meile kiviks kaela / Raimo Poom

    Index Scriptorium Estoniae

    Poom, Raimo

    2010-01-01

    Eesti Energia võimalikust börsileviimisest. Autori sõnul poleks börsikavagi täieliku riskita, peaküsimus võib hakata puudutama nn. rahvaaktsia kava. Kõige halvem oleks Eesti Energia puhul otsustamatus

  18. Eesti Energia kärpis elektrihinna tõusu / Aivar Reinap

    Index Scriptorium Estoniae

    Reinap, Aivar, 1968-

    2004-01-01

    Ilmunud ka: Põhjarannik, 13. veebr. 2004, lk. 1. Eesti Energia nõukogu otsustas vähendada taotletavat elektrienergia hinnatõusu 15%ni ja lükkas hinnapakettide lõpliku kinnitamise edasi nädala võrra. Riigikogu ja Eesti Energia nõukogu liikme Janno Reiljani arvamus

  19. Eesti Energia juhi küsimus jäi ajapuudusel lahendamata / Villy Paimets

    Index Scriptorium Estoniae

    Paimets, Villy, 1972-

    2005-01-01

    Eesti Energia nõukogu jättis otsustamata, kas ettevõtte juhatuse esimehe kohale kuulutatakse välja avalik konkurss. Vt. samas: Oki valulaps on elektri hind; Kronoloogia: Eesti Energia on Gunnar Oki juhtimisel kõvasti kosunud

  20. Energia Renovable para Centros de Salud Rurales (Renewable Energy for Rural Health Clinics)

    Energy Technology Data Exchange (ETDEWEB)

    Jimenez, T.; Olson, K.

    1999-07-28

    Esta es la primera de una serie de guias de aplicaciones que el Programa de Energia de Villas de NREL esta comisionando para acoplar sistemas comerciales renovables con aplicaciones rurales, incluyendo agua, escuelas rurales y micro empresas. La guia esta complementada por las actividades de desarrollo del Programa de Energia de Villas de NREL, proyectos pilotos internacionales y programas de visitas profesionales.

  1. Ülikoolihõnguline personalikoolitus Eesti Energias / Annika Kaseorg ; küsitlenud Kadri Kiigema

    Index Scriptorium Estoniae

    Kaseorg, Annika

    2007-01-01

    Eesti Energia alustatud uuest projektist "Nädalalõpu Ülikool" räägib Eesti Energia Jaotusvõrgu personali arendamise projektijuht Annika Kaseorg. Avaseminaril tegi ettekande töövõime säilitamisest TLÜ terviseteaduste ja spordi teaduskonna dekaan Kristjan Port

  2. 77 FR 74472 - Application to Export Electric Energy; Energia Renovable S.C., LLC

    Science.gov (United States)

    2012-12-14

    ... Application to Export Electric Energy; Energia Renovable S.C., LLC AGENCY: Office of Electricity Delivery and... Renovable) has applied for authority to transmit electric energy from the United States to Mexico pursuant... application from Energia Renovable for authority to transmit electric energy from the United States to...

  3. Avaliação econômica e ambiental da energia atômica no Brasil - DOI: 10.4025/actascitechnol.v31i2.361

    Directory of Open Access Journals (Sweden)

    Juliana Bento

    2009-06-01

    Full Text Available O objetivo desta pesquisa é analisar se a energia nuclear pode contribuir para geração de energia elétrica de maneira sustentável no território nacional. O estudo foi realizado a partir de pesquisa bibliográfica e documental do setor energético, com levantamento de custos e impactos ambientais no processo de geração de energia elétrica, nas usinas termonucleares. A emissão de gases na atmosfera é elevada, e uma das principais causas de mudanças climáticas são as usinas de carvão. Já no caso das usinas termonucleares, a emissão é controlada, não afetando o meio ambiente e a saúde humana. Inúmeras melhorias ainda são necessárias para que seu ingresso flua como uma alternativa viável, de modo que sane problemas de escassez de matéria-prima, torne-se potencial fonte geradora de energia elétrica, não coloque em risco a sobrevivência da humanidade e garanta a preservação dos recursos naturais.

  4. Nominal aspect

    DEFF Research Database (Denmark)

    Rijkhoff, Jan

    1991-01-01

    In a general way the notion 'aspect' can be defined as the way in which a property or relation is represented in some dimension. Two kinds of aspect can be distinguished: verbal and nominal aspect. The study of verbal aspect has a long tradition, but nominal aspect has only been introduced recently......, at least in the sense in which it is used here (Rijkhoff 1989b, 1990a, 1990b). After a brief look at the more familiar verbal aspects, each of the nominal aspects is discussed in some detail. Then the relevance of nominal aspect will be considered in connection with (i) certain 'number markers' (which...... will be analysed as nominal aspect markers below), (ii) noun-incorporation, and (iii) predicate nouns....

  5. Avaliação económica de um investimento em geração de energia das ondas e energia solar térmica

    OpenAIRE

    2012-01-01

    O presente trabalho tem como objectivo efectuar a avaliação económica e determinar a viabilidade com e sem os incentivos fiscais de duas tecnologias de conversão de duas fontes distinta e emergentes de energia renovável, o Concentrador Cilindro-parabólico e a Torre Solar para a energia solar termoeléctrica e a Coluna de Água Oscilante e o Pelamis para a energia das ondas. Realiza-se uma curta abordagem à energia Solar e à energia dos Oceanos, e às tecnologias existentes para estes tipos de en...

  6. TTÜ energia- ja sisekliimalabor : energiasääst passiivse arhitektuurilise jahutuse ja/või küttemeetodite kavandamise abil / Hendrik Voll, Teolan Tomson

    Index Scriptorium Estoniae

    Voll, Hendrik, 1980-

    2010-01-01

    TTÜ ehitusteaduskonna kütte ja ventilatsiooni õppetoolis valmis energia- ja sisekliima labor, mille spetsiaalsed päikesekiirguse ja hajuvalguse stendid aitavad inseneridel ja arhitektidel parandada energiasimulatsiooniprogrammide kasutusoskusi

  7. Financial Control and Safety. An investigation on how financial and safety aspects are integrated in the decision making at the Swedish nuclear power plants; Ekonomistyrning och saekerhet. En utredning om hur ekonomi- och saekerhetsaspekter integreras vid beslutsfattandet vid kaernkraftverken

    Energy Technology Data Exchange (ETDEWEB)

    Vaernild, Ola [OV Konsult i Vaesteraas AB, Vaesteraas (Sweden)

    2005-08-01

    The alleged inter-relationship between economy and nuclear safety has been investigated. Through interviews and review of instructions and other documents, information on how management at Swedish nuclear power plants integrates financial control and safety management has been compiled. Owners of nuclear power plants have well founded expectations on that the plants are profitable and that the operations are rationalized in order to reduce costs. This could allegedly threaten the nuclear safety. However, it is not to be expected that there are any obvious relationships between expenditures and safety. The quality of the safety management has to be judged in terms of how well safety requirements are met irrespective of the associated costs. The owners have imposed clear financial objectives on the nuclear power plants. At the same time they have also established policies for nuclear safety. The nuclear power plants have systems for operations management, which basically comprise separate parts for operations planning and quality management. Financial control and safety management are included in the operations planning and quality management respectively. The quality management impose restrictions to be adhered to in the operations planning. This means that from a formal point of view, the safety management is superior to the operations planning. There are examples of simple as well as advanced approaches to financial management at the nuclear power plants. In all cases the methods used are reasonably well adapted to the needs. Typical for all plants is the focus on long-term aspects. Investments are for example analysed in a plant life-time perspective. With regard to safety, profitability calculations are not required to the same extent for safety related investments as for other investments. A number of factors, which tend to warrant that safety aspects are given the appropriate attention in the decision making, have been identified. Examples of such factors are

  8. Nuclear Structure

    Science.gov (United States)

    Gargano, Angela

    2003-04-01

    An account of recent studies in the field of theoretical nuclear structure is reported. These studies concern essentially research activities performed under the Italian project "Fisica Teorica del Nucleo e dei Sistemi a Molti Corpi". Special attention is addressed to results obtained during the last two years as regards the development of new many-body techniques as well as the interpretation of new experimental aspects of nuclear structure.

  9. A vision of year 2030 on the use of the renewable energies in Mexico; Una vision al 2030 de la utilizacion de las energias renovables en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Mulas del Pozo, Pablo [Universidad Autonoma Metropolitana, Mexico, D.F. (Mexico)

    2005-08-15

    The Direccion General de Desarrollo Tecnologico of the Secretaria de Planeacion y Desarrollo (main directorate of technological development of the secretariat of planning and technological development) of the Secretaria de Energia (Sener), with the support of the World Bank performed a study, coordinated by Pablo Mulas del Pozo to analyze the possible penetration of the renewable energy sources in Mexico between today and year 2030. In this project are included as small renewable sources the small hydroelectric plants (mini, micro and smaller than 20 MW), the geothermal, the solar energy, the wind energy and the biomass. As part of this study three large lines of reflection are contemplated: (1) a bibliographical revision of the possible futures of the renewable energies, including some projections over the future evolution of the national power sector, and over the technological status of the same ones; (2) Projections on the possible future evolution of the national power sector and the possible penetration of the renewable sources of energy in it, using a simulation model (LEAP model); and (3) Groups of approach to consult experts on different aspects related to the possible future penetration of the renewable sources of energy in Mexico (especially, on present and future obstacles that face the renewable sources in our country, the possible carrying events of future which could modify the rate of penetration of these energies, and possible policy guidelines that could benefit the penetration of the same ones as of today). [Spanish] La Direccion General de Desarrollo Tecnologico de la Secretaria Planeacion y Desarrollo Tecnologico de la Sener, con el apoyo del Banco Mundial realizo un estudio, coordinado por el Pablo Mulas del Pozo, para analizar la posible penetracion de las fuentes renovables de energia en Mexico entre hoy y el ano 2030. En dicho proyecto se incluyen como fuentes renovables a las pequenas hidroelectricas (micro y mini, menores de 20 MW), la

  10. Applications of nuclear physics

    Science.gov (United States)

    Hayes, A. C.

    2017-02-01

    Today the applications of nuclear physics span a very broad range of topics and fields. This review discusses a number of aspects of these applications, including selected topics and concepts in nuclear reactor physics, nuclear fusion, nuclear non-proliferation, nuclear-geophysics, and nuclear medicine. The review begins with a historic summary of the early years in applied nuclear physics, with an emphasis on the huge developments that took place around the time of World War II, and that underlie the physics involved in designs of nuclear explosions, controlled nuclear energy, and nuclear fusion. The review then moves to focus on modern applications of these concepts, including the basic concepts and diagnostics developed for the forensics of nuclear explosions, the nuclear diagnostics at the National Ignition Facility, nuclear reactor safeguards, and the detection of nuclear material production and trafficking. The review also summarizes recent developments in nuclear geophysics and nuclear medicine. The nuclear geophysics areas discussed include geo-chronology, nuclear logging for industry, the Oklo reactor, and geo-neutrinos. The section on nuclear medicine summarizes the critical advances in nuclear imaging, including PET and SPECT imaging, targeted radionuclide therapy, and the nuclear physics of medical isotope production. Each subfield discussed requires a review article unto itself, which is not the intention of the current review; rather, the current review is intended for readers who wish to get a broad understanding of applied nuclear physics.

  11. Energia, industrialização e exportações : analise dos ramos metalurgico e papel & celulose

    OpenAIRE

    Mauro Donizeti Berni

    1993-01-01

    Resumo: O processo de industrialização desde os seus primórdios tem-se baseado no trabalho humano e, ao mesmo tempo, no uso crescente de carvão mineral, de eletricidade, de petróleo e em menor escala na energia nuclear. Ainda neste século, tais fontes energéticas foram consideradas promissoras a até, inesgotáveis. A partir da década de 70, as duas crises do petróleo aliado às pressões ambientalistas, aceleraram o processo de mudança nas relações de produção vigente e suas decorrentes formas d...

  12. Correlações entre a densitometria do cristalino através da imagem de Scheimplufg, tempo e gasto de energia na cirurgia de facoemulsificação

    Directory of Open Access Journals (Sweden)

    Bruno de Freitas Valbon

    2011-06-01

    Full Text Available OBJETIVO:Correlacionar a densitometria do cristalino(PNS - patient nuclear scorepor meio da imagem de Scheimplufgcom o tempo de facoemulsificação e o gasto de energia. MÉTODOS: Estudo observacional prospectivo, envolvendo 22 olhos de 22 pacientes que se submeteram à cirurgia de catarata por facoemulsificação com implante de lente intraocular. A densitometria do cristalino (PNS foi medida através da tomografia de segmento anterior e córnea (Pentacam no pré-operatório com a imagem de Scheimplufg. O tempo de facoemulsificação e o gasto de energia foram verificados e anotados ao término de cada cirurgia. O teste de correlação de Pearson foi utilizado para análise estatística através do programa Bioestat 5.0. Foi considerado como estatisticamente significante p < 0,05%. RESULTADOS: As correlações entre PNS x Tempo de Facoemulsificação (s e PNS x Gasto de Energia obtiveram respectivamente um p < 0,0050 e RP (Coeficiente de Pearson de 0,5757 e p < 0,0029 e RP (Coeficiente de Pearson de 0,6034. CONCLUSÃO: Observamos uma forte associação entre o método objetivo de classificação da catarata através da imagem de Scheimplufg (PNS, tempo e gasto de energia. Assim há possibilidade de realizarmos um planejamento cirúrgico pré-operatório baseado em métodos objetivos da classificação da catarata, reduzindo a fluídica, energia e tempo na cirurgia de facoemulsificação.

  13. Nuclear power plants making a comeback in Japan; El retorno de la centrales nucleares en Japon

    Energy Technology Data Exchange (ETDEWEB)

    Torralbo, J. R.

    2016-08-01

    We reproduce in this magazine the interesting article published by the president of the SNE in issue 46 of Cuadernos de Energia in October 2015, which describes the events that have taken place since the March 11, 2011 earthquake in Japan, the largest in its history, and the subsequent tsunami, which affected the Fukushima power plant, as well as the measures implemented since then and how some of this country nuclear power plants are being started up again. (Author)

  14. Minema kupatatud nõukoguliikmed: Eesti Energia projektid kukkusid läbi / Dannar Leitmaa

    Index Scriptorium Estoniae

    Leitmaa, Dannar, 1982-

    2011-01-01

    Majandus- ja kommunikatsiooniminister Juhan Parts otsustas Eesti Energia nõukogu liikme kohalt tagasi kutsuda Aivar Reiviku ning Rein Kuusmiku, kes olid vastu Eesti Energia üle viie miljoni euro suurusele investeeringule Weroli rapsiõlitehase juurde rajatavasse elektri- ja küttejaama. Uuteks nõukogu liikmeteks said Andres Saame ja Toomas Tauts. Majandus- ja kommunikatsiooniministeerium peab tagandatud nõukoguliikmete väiteid, et Eesti Energia juhtkond käitub omanikust riigiga omatahtsi ja peab endiselt plaani siirduda börsile, absurdiks. Ministeerium: ei mingit IPO-t

  15. Poultry manure. Agronomic use or energy source?; Pollina: utilizzo agronomico o fonte di energia?

    Energy Technology Data Exchange (ETDEWEB)

    Trinchera, A.; Perri, P.T. [Istituto Sperimentale per la Nutrizione delle Piante, Rome (Italy)

    2000-10-01

    By the year 2010, Italy could see the construction of three incinerators that use poultry manure as source of energy. In this paper, advantages and disadvantages of such a choice are considered in their environmental and economical aspects, taking into account the agronomic qualities of poultry manure. The analyses suggests that the agricultural sector should be the one to recover the biomass. It should be used above all as a fertiliser, either directly or after proper treatments improving its agronomic characteristics. Conversely, the energy sector should be in charge of dismissing the eventual surplus through incineration. [Italian] Nel primo decennio del 2000 in Italia potrebbero sorgere tre impianti di incenerimento in grado di produrre energia utilizzando quale combustibile le deiezioni avicole. In tale lavoro sono stati considerati i vantaggi e gli svantaggi di tale scelta, sia dal punto di vista ambientale che economico, sottolienando come sia necessario tenere presente innanziutto la qualita' agronomica di tale biomassa organica. L'analisi effettuata suggerisce che il settore agricolo recuperi le deiezioni avicole in maniera preponderante, attraverso l'utilizzo immediato quale fertilizzante organico ed a seguito di processi alternativi in grado di esaltarne le caratteristiche agronomiche, rimandando al settore energetico il compito di smaltirne l'eventuale surplus mediante l'incenerimento.

  16. Evolutionary aspects of a unique internal mitochondrial targeting signal in nuclear-migrated rps19 of sugar beet (Beta vulgaris L.).

    Science.gov (United States)

    Matsunaga, Muneyuki; Takahashi, Yoshiya; Yui-Kurino, Rika; Mikami, Tetsuo; Kubo, Tomohiko

    2013-03-15

    The endosymbiotic theory postulates that many genes migrated from endosymbionts to the nuclear genomes of their hosts. Some migrated genes lack presequences directing proteins to mitochondria, and their mitochondrial targeting signals appear to be inscribed in the core coding regions as internal targeting signals (ITSs). ITSs may have evolved after sequence transfer to nuclei or ITSs may have pre-existed before sequence transfer. Here, we report the molecular cloning of a sugar beet gene for ribosomal protein S19 (Rps19; the first letter is capitalized when the gene is a nuclear gene). We show that sugar beet Rps19 (BvRps19) is an ITS-type gene. Based on amino-acid sequence comparison, dicotyledonous rps19s (the first letter is lower-cased when the gene is a mitochondrial gene), such as tobacco rps19 (Ntrps19), resemble an ancestral form of BvRps19. We investigated whether differences in amino-acid sequences between BvRps19 and Ntrps19 were involved in ITS evolution. Analyses of the intracellular localization of chimaeric GFP-fusion proteins that were transiently expressed in Welsh onion cells showed that Ntrps19-gfp was not localized in mitochondria. When several BvRps19-type amino acid substitutions, none of which was seen in any other angiosperm rps19, were introduced into Ntrps19-gfp, the modified Ntrps19-gfp became localized in mitochondria, supporting the notion that an ITS in BvRps19 evolved following sequence transfer to nuclei. Not all of these substitutions were seen in other ITS-type Rps19s, suggesting that the ITSs of Rps19 are diverse.

  17. Natural ionizing system to electrical protection and energy; Sistema ionizante natural de proteccion electrica y energias

    Energy Technology Data Exchange (ETDEWEB)

    Cabareda Fermin; Luis [Universidad de Los Andes (Venezuela)]. E-mail: lcabaredaf@gmail.com

    2013-03-15

    This is the new highest technology, 100% Venezuelan and unique in the world, technological innovation, world patent for maximum protection, security and zero risk (0) to all electrical and power generation systems: hydroelectric and thermoelectric power plants, wind, nuclear and solar power plants, etc; it's the only technology around the world that has the potential to disperse and propagate to land mass the enormous energies associated to the atmospheric discharges (lightning), which are in the order: 200,000 to 500,000 Amperes; 1,000 million Kilowatts and high-level transient voltage of 100 million Volts. This new high technology is the solution to the paradigm of Benjamin Franklin and it is the mechanism to end blackouts that produce so many damages and losses of billions of dollars to both generators and users of electrical service, throughout the world. [Spanish] Esta nueva mas alta tecnologia, 100% venezolana y unica en el mundo, innovacion tecnologica, patente mundial ofrece maxima proteccion, seguridad y riesgo cero (0) a todos los sistemas de generacion electrica: centrales hidroelectricas, termoelectricas, de viento, nucleares y solar, otros; es la unica tecnologia en el mundo que tiene el potencial para dispersar y propagar a la masa terrestre las enormes energias asociadas a las descargas atmosfericas (rayos) que estan en el orden de: 200.000 a 500.000 amperios, 1.000 millones de kilovatios y voltajes transitorios de alto nivel de 100 millones de voltios. Esta nueva alta tecnologia es la solucion al paradigma de Benjamin Franklin y es el mecanismo para eliminar apagones que producen danos y perdidas de billones de dolares para ambos: generados y usuarios del servicio electrico, alrededor del mundo.

  18. Eesti Energia korraldas OSELCA projekti raames Tallinnas rahvusvahelise seminari / Reigo Lehtla

    Index Scriptorium Estoniae

    Lehtla, Reigo

    2005-01-01

    Eesti Energia AS korraldas 12.-13. septembrini 2005. a. Tallinna Tehnikaülikooli energeetikahoones rahvusvahelise seminari olelusringi hindamise (Life Cycle Assessment) metoodika hetkeseisust Ida-Euroopa regioonis

  19. Energia ja sisekliima labor aitab parandada arhitektide ja inseneride koostööd / Hendrik Voll

    Index Scriptorium Estoniae

    Voll, Hendrik, 1980-

    2010-01-01

    TTÜ ehitusteaduskonna kütte ja ventilatsiooni õppetoolis valmis energia ja sisekliima labor, mille spetsiaalsed päikesekiirguse ja hajuvalguse stendid aitavad inseneridel ja arhitektidel parandada energiasimulatsiooniprogrammide kasutusoskusi

  20. The Ciudad Universitaria and the energy; La ciudad universitaria y la energia

    Energy Technology Data Exchange (ETDEWEB)

    Arriola Valdes, Eduardo; Villanueva Moreno, Carlos; Alvarez Watkins, Pablo [Universidad Nacional Autonoma de Mexico (UNAM), Mexico, D.F. (Mexico)

    2006-08-15

    The fundamental intention of the macro project La Ciudad Universitaria y la Energia is to turn to the university campus of the Universidad Nacional Autonoma de Mexico (UNAM) into a model of intelligent use of the different necessary forms of energy for the satisfaction of its necessities. In order to do so, the macro project is sustained in six lines of investigation and development: Solar energy, energy from biomass; hydrogen energy; diagnosis and energy saving; use and energy saving; and energy culture. The macro project is framed in an effort of the UNAM to foment the trans-disciplinary collaboration and therefore, under the coordination of the Faculty of Engineering the following university dependencies participate in this persistence: Faculty of Sciences; Faculty of Chemistry; Faculty of Architecture; Faculty of Accountants and Administration; Faculty of Economy; FES Aragon; Institute of Engineering; Institute of Geophysics; Institute of Physics; Research Center in Energy; Center of Applied Sciences and Technological Development. For that intention, in the period the 2005-2007 the Trans-disciplinary Program in Investigation and Development for Faculties and Schools of the UNAM will contribute with 30 million pesos to the macro project La Ciudad Universitaria y la Energia. [Spanish] El proposito fundamental del macroproyecto La Ciudad Universitaria y la Energia es el convertir al campus universitario de la Universidad Nacional Autonoma de Mexico (UNAM) en un modelo de utilizacion inteligente de las diferentes formas de energia necesarias para la satisfaccion de sus necesidades. Para lograrlo, el macroproyecto se sustenta en las seis lineas de investigacion y desarrollo: Energia solar, energia de biomasa; energia del hidrogeno; diagnostico y ahorro de energia; utilizacion y ahorro de energia; y cultura energetica. El macroproyecto se enmarca en un esfuerzo de la UNAM por fomentar la colaboracion transdisciplinaria y por tanto, bajo la coordinacion de la Facultad

  1. Nuclear fact book

    Energy Technology Data Exchange (ETDEWEB)

    Hill, O. F.; Platt, A. M.; Robinson, J. V. [comps

    1983-05-01

    This reference provides significant highlights and summary facts in the following areas: general energy; nuclear energy; nuclear fuel cycle; uranium supply and enrichment; nuclear reactors; spent fuel and advanced repacking concepts; reprocessing; high-level waste; gaseous waste; transuranic waste; low-level waste; remedial action; transportation; disposal; radiation information; environment; legislation; socio-political aspects; conversion factors; and a glossary. (GHT)

  2. Eesti Energia kuulutas naabritele elektrisõja / Toivo Tänavsuu

    Index Scriptorium Estoniae

    Tänavsuu, Toivo

    2008-01-01

    Eesti Energia plaanib Läti ja Leedu kohtusse anda, kui läbirääkimised ei too lahendust. Sandor Liive peab oluliseks, et EL kehtestaks tollimaksu Vene elektrile. Käimas on lobitöö Põhjamaade elektribörsi laiendamiseks Eestisse 2009. aastast, mis tooks siia avatud turu läbipaistva hinnakujunduse; peetakse reaalseks, et Eesti Energia võib saada äriosaluse kavandatavas Olkiluoto 6. reaktoris. Lisa: Elektri hind võib 1. jaanuarist kahekordistuda

  3. Communicación sobre lineas de suministro de energia

    OpenAIRE

    Ortigueira, M.D.; Gerald, José A. B.; Inácio, José A. L.

    2000-01-01

    Informacion Tcnológica, vol. 11, nº6 Proponemos un sistema para la comunicación sobre líneas de la energia eléctrica usando DS/BPSK con un régimen binario de 300 bits/s. La señal de ensanchado tiene una secuencia máxima de longitud 7 como código de “chip”, repetida 30 veces para cada dígito binario del código de la información BPSK. La sincronización entre la señal del receptor y la secuéncia PN localmente generada es obtenida por un nuevo acercamiento basado en un filtro adaptado....

  4. Russian RSC Energia employees inspect DM in SSPF

    Science.gov (United States)

    1995-01-01

    Employees of the Russian aerospace company RSC Energia prepare to conduct final inspections of the Russian-built Docking Module in the Space Station Processing Facility at KSC. The module will fly as a primary payload on the second Space Shuttle/Mir space station docking mission, STS-74, which is now scheduled for liftoff in the fall of 1995. During the mission, the module will first be attached with the orbiter's robot arm to the Orbiter Docking System (ODS) in the payload bay of the orbiter Atlantis and then be docked with the Mir. When Atlantis undocks from the Mir, it will leave the new docking module permanently attached to the space station for use during future Shuttle Mir docking missions. The new module will simplify future Shuttle linkups with Mir by improving orbiter clearances when it serves as a bridge between the two space vehicles.

  5. Russian RSC Energia employees attach trunnions to DM

    Science.gov (United States)

    1995-01-01

    Employees of the Russian aerospace company RSC Energia attach trunnions to the Russian-built docking module in the Space Station Processing Facility at KSC so that it can be mounted in the payload bay of the Space Shuttle orbiter Atlantis. The module will fly as a primary payload on the second Space Shuttle/Mir space station docking mission, STS-74, which is now scheduled for liftoff in the fall of 1995. During the mission, the module will first be attached with the orbiter's robot arm to the Orbiter Docking System (ODS) in the payload bay of the orbiter Atlantis and then be docked with the Mir. When Atlantis undocks from the Mir, it will leave the new docking module permanently attached to the space station for use during future Shuttle Mir docking missions. The new module will simplify future Shuttle linkups with Mir by improving orbiter clearances when it serves as a bridge between the two space vehicles.

  6. EL ALTO MAGDALENA- COLOMBIA DE LA MANO CON ENERGIAS ALTERNATIVAS

    Directory of Open Access Journals (Sweden)

    Barragán-Alturo, Ancízar

    2013-12-01

    Full Text Available El afán por destruir un paradigma, que mantiene encadenados a los habitantes de Girardot y la región, a una compañía de distribución de la energía eléctrica con sus altos precios para el kilowatt-hora, ha inspirado la investigación CUNDINAMARCA DE LA MANO DE LAS ENERGIAS ALTERNATIVAS, demostrando por diversos caminos que el montaje de paneles solares para generación de energía eléctrica en las cubiertas de las casas es la energía alternativa para la solución de diversos problemas, entre ellos: los costos elevados, las fluctuaciones de voltaje, los cortes de energía, los daños en los electrodomésticos

  7. EL ALTO MAGDALENA- COLOMBIA DE LA MANO CON ENERGIAS ALTERNATIVAS

    OpenAIRE

    ANCÍZAR BARRAGÁN-ALTURO

    2013-01-01

    El afán por destruir un paradigma, que mantiene encadenados a los habitantes de Girardot y la región, a una compañía de distribución de la energía eléctrica con sus altos precios para el kilowatt-hora, ha inspirado la investigación CUNDINAMARCA DE LA MANO DE LAS ENERGIAS ALTERNATIVAS, demostrando por diversos caminos que el montaje de paneles solares para generación de energía eléctrica en las cubiertas de las casas es la energía alternativa para la solución de diversos problemas, entre ellos...

  8. G2 - G3 inventive properties, the first french nuclear plants; Caracteristiques generales et aspects originaux des reacteurs G2 et G3

    Energy Technology Data Exchange (ETDEWEB)

    Pascal; Horowitz; Bussac; Joatton; De Lagge de Meux; Martin [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1958-07-01

    This paper points out the inventive properties of the frenchctors G2 and G3. These are dual purpose reactors, i.e. designed for the production of both plutonium and energy (30 electrical MW); in this respect, they can be considered as the start point of the french electrical energy produced from nuclear fuel. The following points are specially discussed in this paper: the choice of the prestressed concrete pressure vessel, the horizontal arrangement of the channels, the interest of neutron flux flattening, the advantages of the charging and discharging device working during pile operation. (author)Fren. [French] Les caracteres originaux des reacteurs fran is G2 et G3 sont decrits dans ce rapport. Ce sont des reacteurs a double fin, plutonigenes et aussi producteurs d'energie (30 MW electriques); ils constituent a ce titre le point de depart de la production fran ise d'electricite d'origine nucleaire. Sont discutes, en particulier, dans ce rapport: le choix du caisson en beton precontraint pour tenir la pression, la disposition horizontale des canaux, l'interet de l'aplatissement du flux neutronique, les avantages de l'appareil permettant le chargement et le dechargement du combustible sans arreter la pile. (auteur)

  9. Explicit large nuclear charge limit of electronic ground states for Li, Be, B, C, N, O, F, Ne and basic aspects of the periodic table

    CERN Document Server

    Friesecke, Gero

    2008-01-01

    This paper is concerned with the Schr\\"odinger equation for atoms and ions with N=1 to 10 electrons. In the asymptotic limit of large nuclear charge $Z$, we determine explicitly the low-lying energy levels and eigenstates. The asymptotic energies and wavefunctions are in good quantitative agreement with experimental data for positive ions, and in excellent qualitative agreement even for neutral atoms ($Z=N$). In particular, the predicted ground state spin and angular momentum quantum numbers ($^1S$ for He, Be, Ne, $^2S$ for H and Li, $^4S$ for N, $^2P$ for B and F, and $^3P$ for C and O) agree with experiment in every case. The asymptotic Schr\\"odinger ground states agree, up to small corrections, with the semi-empirical hydrogen orbital configurations developed by Bohr, Hund and Slater to explain the periodic table. In rare cases where our results deviate from this picture, such as the ordering of the lowest ${}^1D^o$ and ${}^5S^o$ states of Carbon, experiment confirms our, not Hund's, predictions.

  10. PERSPECTIVAS DE INSERÇÃO DA ENERGIA SOLAR FOTOVOLTAICA NA GERAÇÃO DE ENERGIA ELÉTRICA NO RIO GRANDE DO NORTE

    Directory of Open Access Journals (Sweden)

    Augusto César Fialho Wanderley

    2013-08-01

    Full Text Available A geração de energia elétrica no Brasil é predominantemente renovável, com a geração interna hidráulica sendo superior a 74% do total de sua matriz energética. O racionamento de energia elétrica ocorrido em 2001, devido à falta de chuvas, levou o país a incrementar a participação de fontes alternativas de energia. Esta necessidade por novas fontes de energia faz com que as potencialidades regionais sejam aproveitadas, o que configura a mudança do modelo de geração, passando de geração centralizada para geração distribuída. Dentre as fontes alternativas de energia, a solar apresenta-se como uma fonte bastante promissora para o Brasil, tendo em vista que a maior parte do seu território está localizada próximo à linha do equador, o que acarreta em um dia de maior duração solar. O Rio Grande do Norte (RN tem um dos maiores índices de incidência solar do território brasileiro, o que o torna apto a receber investimentos para a instalação de usinas solares fotovoltaicas. Este artigo analisará o potencial de geração da energia solar fotovoltaica no RN através de medições solarimétricas realizadas em Natal, capital do estado.

  11. Energy saving plan: use of solar energy in the university of Valencia (Spain); Uso de la energia solar en la universidad de Valencia (Espana) para ahorrar energia electrica

    Energy Technology Data Exchange (ETDEWEB)

    Gomez Gomez Amo, J.L.; Tena, F.; Martinez Lozano, J.A.; Utrillas, M.P. [Grupo de Radiacion Solar, Universidad de Valencia (Spain)

    2005-07-15

    The University of Valencia financed a pilot project that would study the installation's feasibility of a generating station with photovoltaic energy, solar type, in order to replace or complement conventional sources of energy. This paper presents some of the preliminary results of the study's application in an University building, along with the analysis of the initial situation and the proposals for the handling of reactive energy and the outer and inner lighting as solutions for energy saving. This experimental project entitled Study of the Energy Saving Strategies and the Viability of Installing Solar Energy equipment in the Buildings of the University of Valencia throws preliminary data specifying the amount of investment necessary to obtain real annual benefits, as well as the recovery time of the investment and the beneficial ecological impact in quantitative terms of a measurable CO{sub 2} reduction. [Spanish] La Universidad de Valencia financio un proyecto piloto que estudiaria la factibilidad de instalacion de una estacion generadora de energia fotovoltaica de tipo solar para sustituir o complementar fuentes convencionales de energia. Este trabajo presenta algunos de los resultados preliminares de la aplicacion del estudio en un edificio de la Universidad junto con el analisis de la situacion inicial y las propuestas del manejo de energia reactiva, de iluminacion exterior e interior como soluciones para el ahorro de energia. Este proyecto experimental titulado Estudio de las estrategias del ahorro de la energia y de la viabilidad de instalar energia solar en los edificios de la Universidad de Valencia arroja datos preliminares que especifican el monto de la inversion necesaria para obtener beneficios anuales reales, asi como el tiempo de recuperacion de la inversion y el impacto ecologico benefico en terminos cuantitativos de una reduccion cuantificable de CO{sub 2}.

  12. Energy saving programs and renewable energies in Chihuahua, Mexico; Programas de ahorro de energia y energias renovables en Chihuahua, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Ibarra Noris, Jose Luis [Gobierno del Estado de Chihuahua (Mexico)

    2005-07-01

    The high index of economic and technological growth registered in the border zone of northern Mexico in the last years, has simultaneously caused an annual growth in the electrical energy demand in a percentage higher than 6%. In this document are included the economic and environmental impacts caused by the projects developed in the Chihuahua State on energy efficiency and on the available potential of renewable energies. In order to evaluate the environmental impact that is caused when saving electrical energy in the diverse projects in process, the emission of CO{sub 2} is the only emission taken into account (even though also emissions of SO{sub 2}, NO{sub 2} and Hg exist) for being this polluting agent the one that contributes in greater amount to the global warming and the greenhouse effect. The emission index of CO{sub 2} that we considered in this presentation is of 600 kg/mwh, on the basis of the type of fuel and volume of generation of the plants in operation of the Comision Federal de Electricidad (CFE) in the Chihuahua State. [Spanish] El alto indice de crecimiento economico y tecnologico registrado en la zona fronteriza del norte de Mexico en los ultimos anos, ha ocasionado paralelamente un crecimiento en la demanda de energia electrica superior al 6% anual. En este documento se incluyen los impactos economicos y ambientales de los proyectos que se desarrollan en el estado de Chihuahua en eficiencia energetica y en el potencial que se tiene de energias renovables. Para evaluar el impacto ambiental que se obtiene al ahorrar energia electrica en los diversos proyectos en proceso, se toma en cuenta unicamente emisiones de CO{sub 2} (aun cuando tambien existen emisiones de SO{sub 2}, NO{sub 2} y Hg) por ser este el contaminante que en mayor cantidad afecta al calentamiento global y al efecto invernadero. El indice de emisiones de CO{sub 2} que consideramos en esta presentacion es de 600 kg/mwh, en base al tipo de combustible y volumen de generacion de las

  13. Influência da Transferência de Momento-Energia na Interação entre Matéria e Energia escura

    OpenAIRE

    Lucas Collis Olivari

    2014-01-01

    Neste trabalho, estudamos modelos cosmológicos em que a energia escura foi tratada como um campo de matéria que interage com a matéria escura. Três modelos distintos foram considerados. O primeiro trata tanto a matéria escura fria quanto a energia escura como fluidos perfeitos. O termo de interação entre eles é dado por uma expressão com origem fenomenológica que postulamos existir na equação de balanço entre esses dois fluidos. Dadas as equações no universo plano de Friedmann-Robertson-Walke...

  14. BK and Kv3.1 potassium channels control different aspects of deep cerebellar nuclear neurons action potentials and spiking activity.

    Science.gov (United States)

    Pedroarena, Christine M

    2011-12-01

    Deep cerebellar nuclear neurons (DCNs) display characteristic electrical properties, including spontaneous spiking and the ability to discharge narrow spikes at high frequency. These properties are thought to be relevant to processing inhibitory Purkinje cell input and transferring well-timed signals to cerebellar targets. Yet, the underlying ionic mechanisms are not completely understood. BK and Kv3.1 potassium channels subserve similar functions in spike repolarization and fast firing in many neurons and are both highly expressed in DCNs. Here, their role in the abovementioned spiking characteristics was addressed using whole-cell recordings of large and small putative-glutamatergic DCNs. Selective BK channel block depolarized DCNs of both groups and increased spontaneous firing rate but scarcely affected evoked activity. After adjusting the membrane potential to control levels, the spike waveforms under BK channel block were indistinguishable from control ones, indicating no significant BK channel involvement in spike repolarization. The increased firing rate suggests that lack of DCN-BK channels may have contributed to the ataxic phenotype previously found in BK channel-deficient mice. On the other hand, block of Kv3.1 channels with low doses of 4-aminopyridine (20 μM) hindered spike repolarization and severely depressed evoked fast firing. Therefore, I propose that despite similar characteristics of BK and Kv3.1 channels, they play different roles in DCNs: BK channels control almost exclusively spontaneous firing rate, whereas DCN-Kv3.1 channels dominate the spike repolarization and enable fast firing. Interestingly, after Kv3.1 channel block, BK channels gained a role in spike repolarization, demonstrating how the different function of each of the two channels is determined in part by their co-expression and interplay.

  15. INTEGRAÇÃO DE PILHAS DE CÉLULAS A COMBUSTÍVEL COM OUTRAS FONTES ALTERNATIVAS DE ENERGIA

    OpenAIRE

    Luciano Porto de Lima

    2009-01-01

    Esta dissertação refere-se ao desenvolvimento de um sistema de integração entre uma pilha de células a combustível (CaCs), e outros módulos geradores de energia alternativa utilizando gerador eólico, gerador fotovoltaico e um acumulador de energia formado por um banco de baterias. Este sistema foi implementado no Centro de Estudos em Energia e Meio Ambiente-CEEMA, no Centro de Tecnologia da UFSM. As fontes alternativas de energia foram conectadas de forma a injetarem corrente CC em um barr...

  16. The Relationship between Nuclear Disarmament and Nuclear Nonproliferation

    Institute of Scientific and Technical Information of China (English)

    Sun; Xiangli

    2015-01-01

    The history of nuclear weapons development since the end of World War II is also one of nuclear arms control.There are two major aspects that represent the global efforts of nuclear arms control,which include limiting on nuclear weapon development in quantities and qualities,and limiting on the proliferation of nuclear weapons and the relevant research and development technologies.The limitation on the nuclear weapons development constitute

  17. Intercomparison of activity measures of 1 {sup 31}I, {sup 67}Ga and {sup 201}Tl in nuclear medicine services in Recife/PE; Intercomparacao de medidas de atividade de {sup 131}I, {sup 67}Ga e {sup 201}Tl em servicos de medicina nuclear do Recife/PE

    Energy Technology Data Exchange (ETDEWEB)

    Couto, Iris Tairini V. do, E-mail: iristairini@hotmail.com [Instituto Federal de Educacao, Ciencia e Tecnologia de Pernambuco (IFPE), Recife, PE (Brazil); Fragoso, Maria da Conceicao de F.; Oliveira, Mercia Liane de, E-mail: mercial@cnen.gov.br [Centro Regional de Ciencias Nucleares do Nordeste (CRCN-NE/CNEN-PE), Recife, PE (Brazil)

    2013-07-01

    In this work, we intend to evaluate the performance of radionuclide calibrators of the Nuclear Medicine Services of the Recife (Brazil), the measurement procedures used by the professionals of these services and the frequency of the application of quality control testing required by Comissao Nacional de Energia Nuclear (CNEN) and the Agencia Nacional de Vigilancia Sanitaria (ANVISA), performing an intercomparison of radionuclides measurements.

  18. Variables that influence in the consumption of electrical energy; Variables que influyen en el consumo de energia eletrica

    Energy Technology Data Exchange (ETDEWEB)

    Ramos Niembro, Gaudencio; Fiscal Escalante, Raul; Maqueda Zamora, Martin [Instituto de Investigaciones Electricas, Temixco, Morelos (Mexico); Sada Gamiz, Jesus; Buitron Sanchez, Horacio [Comision Federal de Electricidad (Mexico)

    1999-07-01

    It is said that when a program of saving and efficient use of the electrical energy is implemented it must be business for three: user, society and electrical utility. Regarding to the user his decision making is very simple: it is to me more cheap or more expensive, the benefit for the society can be seen from very diverse aspects, being the most important conservation of the natural resources and the environment, as far as the electric utility factors of more weight are the differing of investments and the reliability of the system. The present paper shows the importance of monitoring of the ways of energy use in different types of users, to be able to make decisions of programs: ALD, DMS (Demand Side Management) in very diverse scenarios: cities, types of users, income levels et cetera. [Spanish] Se dice que cuando se implanta un programa de ahorro y uso eficiente de la energia eletrica debe ser negocio para tres: usuario, sociedad y empresa eletrica. En lo que respecta al usuario su toma de decision es muy simple: me resulta mas barato o mas caro, el beneficio para la sociedad puede verse desde muy diversos aspectos, siendo el mas importante la conservacion de los recursos naturales y el medio ambiente, en cuanto a la empresa los factores de mas peso son el diferimiento de inversiones y la confiabilidad del sistema. En el presente trabajo se muestra la importancia que tiene el monitoreo de las formas de uso de la energia en diferentes tipos de usuarios, para poder tomar decisiones de programas ALD, DMS por sus siglas en ingles (Demand Side Managenment) en muy diversos escenarios: ciudades, tipos de usuarios, niveles de ingresos, etcetera.

  19. Nuclear and radiochemistry

    CERN Document Server

    Konya, Jozsef

    2012-01-01

    The field of nuclear and radiochemistry is wide-reaching, with results having functions and use across a variety of disciplines. Drawing on 40 years of experience in teaching and research, this concise book explains the basic principles and applications of the primary areas of nuclear and radiochemistry. Separate chapters cover each main area of recent radiochemistry. This includes nuclear medicine and chemical aspects of nuclear power plants, namely the problems of nuclear wastes and nuclear analysis (both bulk and surface analysis), with the analytical methods based on the interactions of

  20. Injustiças da sustentabilidade: Conflitos ambientais relacionados à produção de energia “limpa” no Brasil

    Directory of Open Access Journals (Sweden)

    Marcelo Firpo de Souza Porto

    2013-10-01

    Full Text Available Este trabalho discute as contradições existentes na implementação de projetos de energia “limpa”, a partir de quatro casos do contexto brasileiro: agrocombustíveis via cana‑de‑açúcar, hidrelétricas, parques eólicos e, por fim, energia nuclear. Todos geram inúmeros impactos sociais, ambientais e à saúde que caracterizam o que denominamos provocativamente “injustiças da sustentabilidade”. Assumimos que os conflitos ambientais existentes nos casos são inevitáveis em sociedades de mercado, cuja visão hegemônica de desenvolvimento econômico das corporações e, frequentemente, órgãos de governo é confrontada por populações atingidas e movimentos sociais. Portanto, consideramos estratégico reconhecer as injustiças ambientais como forma de articular as bases materiais da sustentabilidade com questões econômicas, sociais, culturais e filosóficas acerca da noção de progresso.

  1. Saving of electrical energy in educative institutions; Ahorro de energia electrica en instituciones educativas

    Energy Technology Data Exchange (ETDEWEB)

    Castillo Medina, Gabino [Instituto Tecnologico y de Estudios Superiores de Monterrey Campus Estado de Mexico, (Mexico)

    2003-07-01

    The present work looks for integrating the actions of energy saving that can be applied in educative institutions, not concerning the level or size of the same ones. The actions go from questions of making aware the student population until those involved in the change in the operation, migration and implementation of technology. Without overlooking the formative aspect that the educative institutions have and the social commitment of these last ones. It is important that the saving measures have as mission to achieve a culture focussed to make efficient use of the resources, of energy as well as material. This culture must be born from the classrooms and must transform the way to be and act of the student community that will permeate itself with the society. Let us remember that actions are worth more than words, so the educative institutions must preach with the example. [Spanish] El presente trabajo busca integrar las acciones de ahorro de energia que pueden ser aplicadas en instituciones educativas, no importando el nivel o tamano de las mismas. Las acciones van desde cuestiones de concienciar a la poblacion estudiantil hasta las que involucran el cambio en la operacion, migracion e implementacion de tecnologia. Sin perder de vista el aspecto formativo que tienen las instituciones educativas y el compromiso social de estas ultimas. Es importante que las medidas de ahorro tengan como mision lograr una cultura enfocada a hacer uso eficiente de los recursos, tanto energeticos como materiales. Dicha cultura debe nacer desde las aulas y debe transformar la manera de ser y actuar, de la comunidad estudiantil que se permeara con la sociedad. Recordemos que las acciones valen mas que las palabras, asi que las instituciones educativas deben predicar con el ejemplo.

  2. Nuclear astrophysics

    Energy Technology Data Exchange (ETDEWEB)

    Arnould, M. [Institut d' Astronomie et d' Astrophysique, Universite Libre de Bruxelles, Bruxelles (Belgium); Takahashi, K. [Max-Planck-Institut fuer Astrophysik, Garching (Germany)

    1999-03-01

    Nuclear astrophysics is that branch of astrophysics which helps understanding of the Universe, or at least some of its many faces, through the knowledge of the microcosm of the atomic nucleus. It attempts to find as many nuclear physics imprints as possible in the macrocosm, and to decipher what those messages are telling us about the varied constituent objects in the Universe at present and in the past. In the last decades much advance has been made in nuclear astrophysics thanks to the sometimes spectacular progress made in the modelling of the structure and evolution of the stars, in the quality and diversity of the astronomical observations, as well as in the experimental and theoretical understanding of the atomic nucleus and of its spontaneous or induced transformations. Developments in other subfields of physics and chemistry have also contributed to that advance. Notwithstanding the accomplishment, many long-standing problems remain to be solved, and the theoretical understanding of a large variety of observational facts needs to be put on safer grounds. In addition, new questions are continuously emerging, and new facts endangering old ideas. This review shows that astrophysics has been, and still is, highly demanding to nuclear physics in both its experimental and theoretical components. On top of the fact that large varieties of nuclei have to be dealt with, these nuclei are immersed in highly unusual environments which may have a significant impact on their static properties, the diversity of their transmutation modes, and on the probabilities of these modes. In order to have a chance of solving some of the problems nuclear astrophysics is facing, the astrophysicists and nuclear physicists are obviously bound to put their competence in common, and have sometimes to benefit from the help of other fields of physics, like particle physics, plasma physics or solid-state physics. Given the highly varied and complex aspects, we pick here some specific nuclear

  3. Nuclear astrophysics

    Science.gov (United States)

    Arnould, M.; Takahashi, K.

    1999-03-01

    Nuclear astrophysics is that branch of astrophysics which helps understanding of the Universe, or at least some of its many faces, through the knowledge of the microcosm of the atomic nucleus. It attempts to find as many nuclear physics imprints as possible in the macrocosm, and to decipher what those messages are telling us about the varied constituent objects in the Universe at present and in the past. In the last decades much advance has been made in nuclear astrophysics thanks to the sometimes spectacular progress made in the modelling of the structure and evolution of the stars, in the quality and diversity of the astronomical observations, as well as in the experimental and theoretical understanding of the atomic nucleus and of its spontaneous or induced transformations. Developments in other subfields of physics and chemistry have also contributed to that advance. Notwithstanding the accomplishment, many long-standing problems remain to be solved, and the theoretical understanding of a large variety of observational facts needs to be put on safer grounds. In addition, new questions are continuously emerging, and new facts endangering old ideas. This review shows that astrophysics has been, and still is, highly demanding to nuclear physics in both its experimental and theoretical components. On top of the fact that large varieties of nuclei have to be dealt with, these nuclei are immersed in highly unusual environments which may have a significant impact on their static properties, the diversity of their transmutation modes, and on the probabilities of these modes. In order to have a chance of solving some of the problems nuclear astrophysics is facing, the astrophysicists and nuclear physicists are obviously bound to put their competence in common, and have sometimes to benefit from the help of other fields of physics, like particle physics, plasma physics or solid-state physics. Given the highly varied and complex aspects, we pick here some specific nuclear

  4. Integration of real-time operational data in geographical information for power and gas business; Integrando em tempo real os dados operacionais aos sistemas geo referenciados do negocio gas e energia

    Energy Technology Data Exchange (ETDEWEB)

    Salcedo, Fernando Jose de Carvalho; Carvalho, Ronaldo Jose Seixas de [PETROBRAS, Rio de Janeiro, RJ (Brazil)

    2005-07-01

    The Strategical Management of Data and Information of the Gas e Energia, has as its being reason, the provision of right information, in the right place and in the right time, based on the correct sources, adding strategic value to Business. The SCADA systems (Supervisory Control and Data Acquisition), give to the Thermoelectrical Plant Operators and Electrical Transporting Operators the integration with the operational stations, measurement and energy delivery. The Geographical Information Systems - GIS, give the maps visualization with geopolitics aspects, gas pipeline infrastructure and satellite images. The Historical Data systems, have as its requirements the interface between many SCADA systems by means of accompaniment of historical data, real time data of the common variables of the process (outflow, pressure, temperature, egg.) and KPI's visualization - typical performance indicators of energy systems (non-availability, generation efficiency and distribution, egg.). Based on the business systemic vision, the Real-Time Enterprise Architecture - Real Time data integration and Performance Indicators based on the GIS software platform was developed in the Gas e Energia enterprise scenario. The present action has, as its focus, the dynamic visualization in real-time of the integrated data to the GIS infrastructure of the Gas Pipelines and Thermoelectrical Plants, guaranteeing the integrity, the audit trail of the information and a pro active vision for the Management of the Gas e Energia Business. (author)

  5. Gunnar Okk jääb vähemalt aastaks Eesti Energia etteotsa / Urmas Tooming

    Index Scriptorium Estoniae

    Tooming, Urmas

    2005-01-01

    Eesti Energia nõukogu otsustas, et Eesti Energia juhi kohale korraldatakse konkurss aasta pärast ning nõukogu esimees Urmas Sõõrumaa sai volituse juhatuse liikmetega läbi rääkida ja nende lepinguid aasta võrra pikendada. Lisa: Gunnar Oki töö

  6. 77 FR 23476 - Energia Sierra Juarez U.S., LLC; Supplemental Notice That Initial Market-Based Rate Filing...

    Science.gov (United States)

    2012-04-19

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Energia Sierra Juarez U.S., LLC; Supplemental Notice That Initial Market... in the above-referenced proceeding of Energia Sierra Juarez U.S., LLC's application for...

  7. Fuzzy control for the operation of an electrical energy generation system based on standard fuel cells PEM; Control difuso para la operacion de un sistema de generacion de energia electrica basado en celdas de combustible tipo PEM

    Energy Technology Data Exchange (ETDEWEB)

    Vazquez R, Miguel; Gutierrez A, Ruben [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico); Rodriguez P, Alejandro [Centro Nacional de Investigacion y Desarrollo Tecnologico (Cenidet), Cuernavaca, Morelos (Mexico)

    2005-07-01

    Fuel cells, as totally clean power plants, have many applications in the industry in general, in the transport system, in the electricity generation for domestic consumption and in the communication systems, among others. When developing new forms of generation with renewable energy sources, it must be considered that petroleum will stop in being an available power resource. The interest in the study of the fuel cells has been increased in the last years because it is considered a solution to the supply of distributed energy problem. Therefore, already exist research institutions that are developing work on this technology. A generation of electrical energy system based on fuel cells is a nonlinear system where the control of the variables of the process, such as the temperature of the system and the pressurization of the reactants, are an important aspect for its proper operation, since it influences in the water balance and therefore in the global efficiency of the system. [Spanish] Las celdas de combustible, como fuente de energia totalmente limpia, tienen muchas aplicaciones en la industria en general: en el sistema de transporte, en la generacion de electricidad para consumo domestico y en los sistemas de comunicacion, entre otros. Al desarrollar nuevas formas de generacion con fuentes de energia renovables, se debe considerar que el petroleo dejara de ser un recurso energetico disponible. El interes en el estudio de las celdas de combustible se ha incrementado en los ultimos anos debido a que se le considera una solucion al problema de abasto de energia distribuida. Por lo tanto, ya existen instituciones de investigacion que estan desarrollando trabajos sobre esta tecnologia. Un sistema de generacion de energia electrica basado en celdas de combustible es un sistema no lineal en donde el control de las variables del proceso, tales como la temperatura del sistema y la presurizacion de los reactantes, es un aspecto importante para su buen funcionamiento, ya que

  8. Applications of the gas chromatography in the nuclear science and technology; Aplicaciones de la cromatografia de gases a la ciencia y tecnologia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Gasco Sanchez, L.

    1972-07-01

    This paper is a review on the applications of the gas chromatography in the nuclear science and technology published up to December 1971. Its contents has been classified under the following heads; I) Radiogaschromatography, II) Isotope separation, III) Preparation of labelled molecules, IV) Nuclear fuel cycle, V) Nuclear reactor technology, VI) Irradiation chemistry, VIl) Separation of me tal compounds in gas phase, VIII) Applications of the gas chromatography carried out at the Junta de Energia Nuclear, Spain. Arapter VIII only includes the investigations carried out from January 1969 to December 1971. Previous investigations in this field has been published elsewhere. (Author)

  9. Book Presentation: “L’Energia del vuoto” by Bruno Arpaia

    CERN Multimedia

    CERN Library

    2012-01-01

    “It is nighttime on a Swiss highway. A car travels at high speed, heading to Marseilles. Pietro Leone, UN Geneva civil servant, is at the wheel. His son Nico is asleep next to him. The two are fleeing from something unknown...   ... Pietro only knows that, for the past few days, someone has been discreetly following him and his family, and that his wife Emilia, a CERN researcher, vanished from home a few days before…” Would you like to know what happens next? The Library, in cooperation with the association “Cultura Italia”, is organizing a presentation of “L’energia del vuoto”. A brief introduction to this book will be followed by a debate among the participants. Bruno Arpaia, journalist, writer and translator, has written 3 novels and 4 political essays. “L’energia del vuoto” is his latest novel, inspired by a visit he paid to CERN.   “L’energia del...

  10. Interactive applications for energy saving; Aplicaciones interactivas para ahorro de energia

    Energy Technology Data Exchange (ETDEWEB)

    Adame Gonzalez, Alejandro; Ramirez Anaya, Cesar; Gutierrez, Hector; Dominguez Ojeda, Xerxes; Aguilar Galvan, Alfredo [Ingenieria Energetica Integral S. A. de C. V., Mexico, D. F. (Mexico)

    1998-12-31

    A series of ideas are presented that can help in the development of interactive applications for energy saving. Emphasis is made on the Fideicomiso de Apoyo al Programa de Ahorro de Energia (FIDE)`s Interactive Course on Demand Management and Power Factor Compensation, in order to demonstrate how far one can go with the multimedia development. [Espanol] Se presenta un conjunto de ideas que pueden auxiliar en la elaboracion de aplicaciones interactivas para ahorro de energia. Se hace principal enfasis sobre el curso interactivo Administracion de la Demanda y Compensacion del Factor de Potencia del Fideicomiso de Apoyo al Programa de Ahorro de Energia (FIDE) con la finalidad de mostrar hasta donde puede llegarse con un desarrollo multimedia.

  11. Energy saving, social and government communication; Ahorrro de energia, sociedad y comunicacion gubernamental

    Energy Technology Data Exchange (ETDEWEB)

    Morales Camarena, Francisco [Comision Nacional para el Ahorro de Energia, Mexico, D.F. (Mexico)

    2001-07-01

    The actions for the energy efficiency and the utilization of renewable energies are multiple and dispersed, in each one of the energy consumption points of the country. For this reason, two important factors to foment these actions are to promote the social participation and the effective government communication towards the society: energy saving and social participation. One of the main faculties of the National Commission of Energy Saving (CONAE) is to foment the efficiency in the energy use, through actions coordinated with the different agencies and organizations of the Federal Public Administration, with the governments of the federal entities and the municipalities and, through coordinated operations, with the private and social sectors. The CONAE has established mechanisms of coordination and cooperation with the private and social sectors, having fomented programs, projects and actions whose purpose is the energy efficiency, outstanding: 1) Committees and work groups; 2) Cooperation Agreements; 3) the Advisory Council for the Foment of Renewable Energy. [Spanish] Las acciones para la eficiencia energetica y el aprovechamiento de las energias renovables son multiples y dispersas, en cada uno de los puntos de consumo de energia del pais. Por ello, dos factores importantes para fomentar estas acciones son promover la participacion social y la comunicacion gubernamental eficaz hacia la sociedad: Ahorro de energia y participacion social. Una de las principales facultades de la Comision Nacional de Ahorro de Energia es fomentar la eficiencia en el uso de energia, a traves de acciones coordinadas con las diversas dependencias y entidades de la Administracion Publica Federal, con los gobiernos de las entidades federativas y de los municipios y, a traves de acciones concertadas, con los sectores social y privado. La CONAE ha establecido mecanismos de coordinacion y de cooperacion con los sectores privado y social, fomentando programas, proyectos y acciones cuyo

  12. Inovação e sustentabilidade na produção de energia: o caso do sistema setorial de energia eólica no Brasil

    Directory of Open Access Journals (Sweden)

    Thiago Cavalcante Nascimento

    Full Text Available Este artigo tem por objetivo verificar como as ações do sistema setorial brasileiro de energia eólica se relacionam com as perspectivas econômicas, sociais e ambientais que caracterizam inovações sustentáveis. Argumenta que as questões energéticas estão no cerne do desenvolvimento humano ao longo de sua história e que, em decorrência do atual cenário de mudanças climáticas, o desenvolvimento de fontes alternativas de energia é de vital importância na contemporaneidade. Metodologicamente, o estudo pode ser considerado exploratório e descritivo em relação aos fins e bibliográfico no que diz respeito aos meios. Foram utilizados dados primários de agências nacionais, regionais e mundiais de energia eólica para aumentar a consistência das informações coletadas e do trabalho como um todo. Os resultados evidenciam que o sistema setorial de energia eólica está estruturado em torno de uma série de instituições públicas, autarquias, associações de pesquisa e outros stakeholders que demonstram crescente interesse no desenvolvimento do setor no país. Os dados indicam, ainda, que os valores alcançados ao longo dos últimos leilões de energia eólica têm evidenciado o potencial de competitividade dessa fonte energética em comparação com as demais. Conclusivamente, é possível verificar que os pilares da sustentabilidade podem ser visualizados ao longo de praticamente todas as questões envolvendo a implantação de novas usinas eólicas, mas que a dimensão econômica ainda é a de maior destaque, tornando as dimensões sociais e ambientais dependentes da capacidade dessa modalidade de energia competir com outras.

  13. Exotic nuclear matter

    Directory of Open Access Journals (Sweden)

    Lenske H.

    2016-01-01

    Full Text Available Recent developments of nuclear structure theory for exotic nuclei are addressed. The inclusion of hyperons and nucleon resonances is discussed. Nuclear multipole response functions, hyperon interactions in infinite matter and in neutron stars and theoretical aspects of excitations of nucleon resonances in nuclei are discussed.

  14. Energy from garbage; Energia a partir de la basura

    Energy Technology Data Exchange (ETDEWEB)

    Arvizu Fernandez, Jose Luis [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1997-12-31

    The subject of energy generation from garbage is discussed. A description is made of the sanitary fill, which is a system for the conversion or stabilization of garbage encompassing gas generation and lixiviates, these are collected to be used as fuels or a treatment process is applied to them avoiding this way the soil, water and air pollution; also a description is made of the utilization of a biogas recovery well, which recovers the biogas, cleans it from particles and condensates and afterwards feeds an internal combustion motor coupled to an electric generator. It is concluded that if the biogas generated by the buried garbage in the sanitary refills is utilized, the effects that cause the polluting emissions would be diminished and at the same time an additional energy resource would be on hand [Espanol] Se analiza el caso de la generacion de energia a partir de la basura. Se describe la tecnologia de relleno sanitario, la cual es un sistema de conversion o estabilizacion de la basura en el que existe generacion de biogas y lixiviados, estos se capturan para usarlos como combustibles o se les da un proceso de tratamiento y asi se evita la contaminacion del suelo, agua y aire; tambien se describe la utilizacion de un pozo de recuperacion de biogas, el cual recupera el biogas, lo limpia de particulas y condensados y despues alimenta a un motor de combustion interna acoplado a un generador. Se concluye en que si se aprovecha el biogas generado por la basura enterrada en rellenos sanitarios se diminuiran los efectos que causan las emisiones contaminantes y al mismo tiempo se tendria un recurso energetico adicional

  15. KIT EDUCACIONAL PARA ESTUDO DE GERAÇÃO ELÉTRICA A PARTIR DE ENERGIA EÓLICA

    Directory of Open Access Journals (Sweden)

    Antonio Luiz P. S. Campos

    2010-09-01

    Full Text Available Vários estudos desenvolvidos nos últimos anos apontam para as implicações e impactos sócio-ambientais do consumo de energia. Fontes de energias renováveis são apresentadas como alternativa para atender as demandas da sociedade com qualidade, segurança e redução dos danos ambientais decorrentes do consumo de energia. Este artigo apresenta uma proposta de kit educacional para ensino do uso de energia eólica na geração de energia elétrica. Inicialmente, o artigo descreve a evolução do aproveitamento da energia eólica. Depois, o artigo apresenta algumas experiências sobre o ensino desse tipo de energia no ensino médio e superior. O kit educacional é apresentado, mostrando-se resultados obtidos com o aerogerador tais como tensão gerada e circuitos eletrônicos utilizados. Algumas práticas são sugeridas. Por fim, as principais conclusões acerca do sistema são apresentadas.

  16. A energia elétrica da Termodinâmica, a entalpia elétrica da Mecânica Estatística e as energias livres elétricas

    OpenAIRE

    Leal Ferreira,G. F.

    2004-01-01

    Nota-se que os conceitos de energia elétrica empregados usualmente em Termodinâmica e em Mecânica Estatística não são os mesmos e mostra-se que, de fato, estão relacionados por uma transformação de Legendre, aquele originário da Mecânica Estatística sendo o análogo da entalpia em relação à energia interna no esquema P-V-T. As energias livres elétricas são também definidas.

  17. Nuclear Models

    Science.gov (United States)

    Fossión, Rubén

    2010-09-01

    The atomic nucleus is a typical example of a many-body problem. On the one hand, the number of nucleons (protons and neutrons) that constitute the nucleus is too large to allow for exact calculations. On the other hand, the number of constituent particles is too small for the individual nuclear excitation states to be explained by statistical methods. Another problem, particular for the atomic nucleus, is that the nucleon-nucleon (n-n) interaction is not one of the fundamental forces of Nature, and is hard to put in a single closed equation. The nucleon-nucleon interaction also behaves differently between two free nucleons (bare interaction) and between two nucleons in the nuclear medium (dressed interaction). Because of the above reasons, specific nuclear many-body models have been devised of which each one sheds light on some selected aspects of nuclear structure. Only combining the viewpoints of different models, a global insight of the atomic nucleus can be gained. In this chapter, we revise the the Nuclear Shell Model as an example of the microscopic approach, and the Collective Model as an example of the geometric approach. Finally, we study the statistical properties of nuclear spectra, basing on symmetry principles, to find out whether there is quantum chaos in the atomic nucleus. All three major approaches have been rewarded with the Nobel Prize of Physics. In the text, we will stress how each approach introduces its own series of approximations to reduce the prohibitingly large number of degrees of freedom of the full many-body problem to a smaller manageable number of effective degrees of freedom.

  18. Renewable energy: Political momentum and technology for a sustainable Mexico; Energias Renovables: Impulso politico y tecnologico para un Mexico sustentable

    Energy Technology Data Exchange (ETDEWEB)

    Romero Hernandez, Sergio; Romero Hernandez, Omar; Wood, Duncan [Instituto Tecnologico Autonomo de Mexico (ITAM) (Mexico)

    2011-04-15

    The renewable energy sector in Mexico, as shown in this book, is alive and in good condition, prospers and has great potential. In this regard, it is essential that Mexico sees itself as a country with an energy future beyond Cantarell, beyond Pemex and beyond oil. The future of renewable energy offers great hope for the country and the region, and the time is right for a consensus government, business and social more strongly boost the development of this sector. This book discusses the following topics: Renewable energy and sustainable economic development, the regulatory framework for the use of renewable energy, hydropower, bioenergy, Part I: biomass and biogas, bioenergy, Part II: Liquid biofuels; elements for promotion of wind energy in Mexico, geothermal energy, solar PV, solar thermal and micro. [Spanish] El sector de la energia renovable en Mexico, como se muestra en este libro, esta vivo y en buenas condiciones, prospera y tiene gran potencial. En ese sentido, resulta indispensable que Mexico se vea a si mismo como un pais con un futuro energetico mas alla de Cantarell, mas alla de PEMEX, mas alla del petroleo. El futuro de la energia renovable ofrece una gran esperanza para el pais y la region, y el tiempo es adecuado para que una concertacion gubernamental, empresarial y social impulse con mas fuerza el desarrollo de este sector. En este libro se analizan los siguientes temas: Energias renovables y desarrollo economico sustentable; el marco normativo de la utilizacion de las energias renovables; energia hidroelectrica; bioenergia, parte I: biomasa y biogas; bioenergia, parte II: biocombustibles liquidos; elementos para la promocion de la energia eolica en Mexico; energia geotermica; energia solar fotovoltaica; energia solar termica, y la microgeneracion.

  19. Regulatory aspects

    Science.gov (United States)

    Stern, Arthur M.

    1986-07-01

    At this time, there is no US legislation that is specifically aimed at regulating the environmental release of genetically engineered organisms or their modified components, either during the research and development stage or during application. There are some statutes, administered by several federal agencies, whose language is broad enough to allow the extension of intended coverage to include certain aspects of biotechnology. The one possible exception is FIFRA, which has already brought about the registration of several natural microbial pesticides but which also has provision for requiring the registration of “strain improved” microbial pesticides. Nevertheless, there may be gaps in coverage even if all pertinent statutes were to be actively applied to the control of environmental release of genetically modified substances. The decision to regulate biotechnology under TSCA was justified, in part, on the basis of its intended role as a gap-filling piece of environmental legislation. The advantage of regulating biotechnology under TSCA is that this statute, unlike others, is concerned with all media of exposure (air, water, soil, sediment, biota) that may pose health and environmental hazards. Experience may show that extending existing legislation to regulate biotechnology is a poor compromise compared to the promulgation of new legislation specifically designed for this purpose. It appears that many other countries are ultimately going to take the latter course to regulate biotechnology.

  20. Theoretical nuclear physics

    CERN Document Server

    Blatt, John M

    2010-01-01

    A classic work by two leading physicists and scientific educators endures as an uncommonly clear and cogent investigation and correlation of key aspects of theoretical nuclear physics. It is probably the most widely adopted book on the subject. The authors approach the subject as ""the theoretical concepts, methods, and considerations which have been devised in order to interpret the experimental material and to advance our ability to predict and control nuclear phenomena.""The present volume does not pretend to cover all aspects of theoretical nuclear physics. Its coverage is restricted to

  1. Energy conservation and contribution to the sustained development through action in the bioclimate design; Ahorro de energia y contribucion al desarrollo sustentable a partir de acciones de diseno bioclimatico

    Energy Technology Data Exchange (ETDEWEB)

    Garcia Chavez, J. R.; Dorantes Rodriguez, R. [Universidad Autonoma Metropolitana, Unidad Azcapotzalco, Mexico, D. F. (Mexico)

    1995-12-31

    The energy world crisis of 1973 besides the problems of supplying and the raise of prices also propitiated in various countries, a reaction aimed at the efficient use and conservation of energy and to the application of a common sense architecture: the BIOCLIMATIC ARCHITECTURE, which is based in utilization in the buildings of the alternate energies, such as the wind power, etc. The obtaining natural environmental comfort conditions and the saving and efficient use of energy in the buildings are the fundamental objectives of the BIOCLIMATIC ARCHITECTURE. Under these considerations several passive systems for the thermal control in buildings have been set forth, which have been applied in different climatic regions of the planet. This paper presents and analyzes the potential saving of energy through the implementation of practices such as the installation of artificial high efficiency lighting systems and passive cooling systems for the thermal control of an educational building -the central library of the Universidad Autonoma Metropolitana, Azcapotzalco Unit, located in Mexico City. The objective of this study is aimed at the reduction of the consumption of energy in the library and the attainment of comfortable hygrothermal environment for its occupants. Studies performed during the first stage of the research, have permitted the identification of a excessive energy consumption and lack of comfort hygrothermal conditions and the need of high quality air inside the library. These actions have been focussed to two aspects. The first one is related to the improvement in the operation of the electric installation and in the library lighting. These actions were based in the substitution of lamps, load balancing of the secondary circuits, checking and improvement of the electric insulation a better selectivity of lighting switches installation in the vicinity of windows and areas with greater natural illumination. The second aspect refers to the calculation, design

  2. Eesti Energia surus konkurendid oma prügijaamaga nurka / Andres Reimer

    Index Scriptorium Estoniae

    Reimer, Andres

    2010-01-01

    Eesti Energia kiitis heaks Irusse rajatava prügipõletusjaama ehituslepingu. Jäätmekäitlusettevõtete hinnangul koondaks Iru jaama rajamine kogu Eesti prügikäitlemise Tallinna ja senine süsteem tuleks suurte kuludega ümber korraldada

  3. Energia jäävuse seadus / Janek Mäggi

    Index Scriptorium Estoniae

    Mäggi, Janek, 1973-

    2010-01-01

    Eesti Energia börsileminekust. Autori hinnangul on ettevõtte eeliseks ja puuduseks ühtaegu tema stabiilsus. Tavakodanikule on riigi enamusosalusega ettevõttesse oma raha paigutamine suhteliselt turvaline, aktsiate omandamine raha teenimise eesmärgil tõenäoliselt vähetulus

  4. Eesti Energia salatseb IPO eeltööde hinnaga / Jan Jõgis-Laats

    Index Scriptorium Estoniae

    Jõgis-Laats, Jan

    2010-01-01

    Eesti Energia juhatuse esimehe Sandor Liive väitel oli ettevõtte börsilemineku ettevalmistamise kulude suurusjärk kümnetes miljonites kroonides, suurimad kulutused tehti õigus- ja majandusanalüüsile. Eesti Energiat nõustanud firmad

  5. Eesti Energia kapitalisüsti 2011. aastal ei tule / Raimo Poom

    Index Scriptorium Estoniae

    Poom, Raimo

    2010-01-01

    Riigieelarve eelnõu kohaselt saab valitsus õiguse järgmisel aastal väljastada võlakirju või võtta laenu 7,8 mld. krooni ulatuses, see võimalus on mõeldud peamiselt riigieelarve defitsiidi rahastamiseks. Riik ei kavanda 2011. a. Eesti Energia aktsiakapitali suurendamist

  6. Eesti Energia mõtleb liiga palju suurele ärile / Anto Raukas

    Index Scriptorium Estoniae

    Raukas, Anto, 1935-

    2011-01-01

    Autori hinnangul on Eesti Energia juhid seadnud äritegevuse esiplaanile ja seda kaheldava väärtusega piirkondades, nagu Jordaania kõrbes, Utah' mägedes USA-s ja Marokos. Ta nimetab probleeme, millega ettevõte peaks eksootiliste maade asemel tegelema

  7. Eesti Energia juht lubab hinnatõusu / Sandor Liive ; interv. Andrus Karnau

    Index Scriptorium Estoniae

    Liive, Sandor

    2006-01-01

    Vt. ka Postimees : na russkom jazõke 13. märts lk. 9. Eesti Energia juhatuse esimees Sandor Liive vastab küsimustele, mis puudutavad ettevõtte laienemisplaane, investeeringute mõju elektrihinnale, Ignalina tuumajaama, energiaturu avamist, põlevkivienergeetika tulevikku. Lisa: 3 mõtet

  8. Technological advances in zero energy buildings; Avances tecnologicos en edificios de energia cero

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez Milla, Guillermo; Perez Rebolledo, Hugo; Acoltzi Acoltzi, Higinio [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2011-07-01

    Buildings use a large amount of energy to operate and are one of the main sources of contaminating emissions. A building is a complex system and all of their components contribute to the total energy demand. The technology to construct zero-energy buildings is already available, but obstacles exist such as the lack of information and technical training of architects and engineers to design highly energy efficient buildings. The present article describes the progress to-date and the future prospects for the design and construction of zero-energy buildings, as well as the problems involved in its implementation. [Spanish] Los edificios usan una gran cantidad de energia para operar y son una de las principales fuentes de emisiones contaminantes. Un edificio es un sistema complejo y todos sus componentes contribuyen a la demanda total de energia. La tecnologia para construir edificios de energia cero ya esta disponible, pero existen barreras como falta de informacion o capacitacion tecnica a arquitectos e ingenieros, para disenar edificios de alta eficiencia energetica. El presente articulo muestra los avances a la fecha y la prospectiva para el diseno y construccion de edificios de energia cero, asi como la problematica para su implementacion.

  9. Agreements for energy and environment; Patto per l'energia e l'ambiente

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    In this paper are reported in ambit of italian national conference of energy and environment, an agreement undersigned by deputy of political and social forces. [Italian] In questo documento e' illustrato il patto per l'energia e l'ambiente cui hanno aderito forze sociali e politiche del paese.

  10. Eesti Energia ehtis end võõraste kuresulgedega / Nils Niitra

    Index Scriptorium Estoniae

    Niitra, Nils, 1975-

    2007-01-01

    Lõuna-Eesti traadita internetituru liider Kernel on üllatunud, et Eesti Energia tütarfirma Televõrk traadita internetivõrk Kõu kasutas reklaamiks nende kurepilti. Lisa: Eilseks kadunud kurejutt. Ilmunud ka: Postimees, 20. juuni 2007, lk. 4

  11. Eesti Energia : investeerimata oleme varsti hädas / Krista Taim, Allar Viivik

    Index Scriptorium Estoniae

    Taim, Krista

    2004-01-01

    Eesti Energia nõukogu kinnitas ettevõtte investeeringutekava aastani 2018, 15 aasta jooksul tuleb investeerida 46 miljardit krooni, rahastamisallikatena nähakse välislaenu, riigi abi või hinnatõusu. Kommenteerivad Eiki Nestor ja Marika Tuus

  12. Eesti Energia : Leedu projektis osalemine Eestis hinnatõusu ei too / Tarmo Riisenberg

    Index Scriptorium Estoniae

    Riisenberg, Tarmo

    2003-01-01

    Selgumas on Eesti Energia võimalik osalemine Leedu jaotusvõrgu RST erastamisläbirääkimistel. Ettevõtte juhtkond kinnitab, et võimalik erastamiskonkursi võit kohalikule tarbijale elektrienergia hinnatõusu kaasa ei too. Vt. samas: Käsil ka Ignalina ja merekaabel Soome

  13. Didáctica da física : a energia

    OpenAIRE

    Valadares, Jorge

    1991-01-01

    Formação - Professores O programa aborda o conceito de Energia. Recurso a animação gráfica, experiências e exemplos. Disciplina “Didáctica da Física e da Química “, do Curso de Profissionalização em Exercício.

  14. Electric power conservation while using pumping systems; Conservacion de Energia Electrica en Sistemas de Bombeo

    Energy Technology Data Exchange (ETDEWEB)

    Nambiar, P

    2007-01-15

    The pumping systems provide about 20 to 25 percent of energy which is necessary worldwide: it is fruitful to understand how to use electric power efficiently, to achieve the reduction regarding expenses a pumping system implies.It is essential to possess a better knowledge about the pumping system and its applications, in order to be able to use energy responsibly. If people do not how to operate this kind of systems properly, they will use inadequate equipment that will cause an energy waste. In addition it is important to know: alternative methods to meet variable demands, an adapted system to pump water requirements in order to ensure the pump work in its pumping point, and the life cycle system cost for the energy saving in the long term. [Spanish] En promedio del 20 al 25% de la energia necesaria en el mundo proviene de los sistemas de bombeo, por tal razon es importante saber como utilizar la energia electrica con eficiencia para asi lograr reducir los gastos que este tipo de sistemas implican. Para poder hacer un buen uso de la energia, es necesario que se tenga un conocimiento mayor del sistema de bombeo y aplicacion, ya que la ignorancia sobre esto exige el uso de aparatos que contribuyen al desperdicio de la energia; por otro lado tambien es esencial conocer metodos alternos para demandas variables, tener un sistema que se adapte a las necesidades de bombeo del agua para asegurarse de que cada bomba trabaje cerca de su punto de bombeo y finalmente conocer el costo del ciclo de vida del sistema para el ahorro de energia a largo plazo.

  15. Exploração de energia maremotriz para geração de eletricidade: aspectos básicos e principais tendências Exploring tidal energy for electricity generation: basic issues and main trends

    Directory of Open Access Journals (Sweden)

    Pedro Bezerra Leite Neto

    2011-08-01

    Full Text Available A exploração da energia das marés tem se tornado cada vez mais atrativa em diversos aspectos. Alguns projetos maremotrizes sinalizam que outros projetos de geração de energia futuros podem levar em consideração esta alternativa tecnológica. Portanto, neste trabalho são apresentados os princípios básicos de exploração da energia maremotriz, as principais tecnologias utilizadas e princípios de operação de uma usina maremotriz. Além disso, são destacados alguns aspectos importantes, tais como ambientais e econômicos, que estão envolvidos neste tipo de geração e que precisam ser considerados. É feita ainda uma breve avaliação de alguns dos principais projetos já existentes e também são apresentadas algumas das novas tecnologias e as principais tendências em termos de geração maremotriz. Finalmente, são apresentados alguns dos locais mais adequados para a exploração da energia maremotriz no Brasil, bem como algumas das propostas que podem viabilizar tais aproveitamentos.Tidal energy exploration has become more attractive under diverse aspects. Some tidal operating projects show that other new similar energy generation projects may consider this find of technology. Therefore, some basic principles of tidal energy exploration, main technologies and operating modes of a tidal power plant, are presented in this work. Moreover, some important aspects, such as environmental and economic aspects involved in this kind of energy generation, must be considered, and are addressed in this work. A brief evaluation of some existing projects has been made and some new technologies and main tendencies in tidal power generation are revised. Finally, some of the most adequate places for tidal generation in Brazil are presented, as well as some of proposals that may make feasible such exploitations.

  16. Pesquisa e desenvolvimento e a qualidade no fornecimento de energia elétrica

    Directory of Open Access Journals (Sweden)

    Daniela Torres da Rocha

    2010-07-01

    Full Text Available No Brasil os serviços de fornecimento de energia elétrica, salvo raras exceções, são prestados com exclusividade por empresas públicas e privadas, em operações regulamentadas por dispositivos legais específicos e contratos de concessão ou permissão. Pela legislação em vigor tais empresas são obrigadas ainvestir em P&D (pesquisa e desenvolvimento. De outro lado, essas empresas também têm que cumprir metas relacionadas à qualidade dos seus serviços. Tais aspectos motivaram a realização de uma pesquisa, objeto do presente artigo, visando avaliar a existência, ou não, de relação entre esses investimentos e a qualidade dos serviços. Para tal finalidade foram levantados dados que foram analisados pelo método estatístico da correlação. Os resultados obtidos indicaramuma baixa correlação entre os indicadores utilizados, permitindo concluir que, até o momento, os investimentos em P&D podem não estar apresentando nenhum impacto significativo na qualidade dos serviços.Abstract In Brazil the services of electricity supply, with few exceptions, are provided exclusively by public and private companies, in operations regulated by specific legal provisions and concession contracts or permits. By existing legislation suchcompanies are required to invest in P&D (research and development. On the other hand, these companies also have to meet targets related to the quality of their services. These aspects motivated the implementation of a research objective of this article, to evaluate the existence or not of a relation between the investment andservice quality. For this purpose data was collected were analyzed by statistical method of correlation. The results indicated a low correlation between the indicators used, allowing to conclude that so far, the investments in P&D may not be showing any significant impact on service quality.

  17. Nuclear structure theory

    CERN Document Server

    Irvine, J M

    1972-01-01

    Nuclear Structure Theory provides a guide to nuclear structure theory. The book is comprised of 23 chapters that are organized into four parts; each part covers an aspect of nuclear structure theory. In the first part, the text discusses the experimentally observed phenomena, which nuclear structure theories need to look into and detail the information that supports those theories. The second part of the book deals with the phenomenological nucleon-nucleon potentials derived from phase shift analysis of nucleon-nucleon scattering. Part III talks about the phenomenological parameters used to de

  18. Nuclear medicine physics

    CERN Document Server

    De Lima, Joao Jose

    2011-01-01

    Edited by a renowned international expert in the field, Nuclear Medicine Physics offers an up-to-date, state-of-the-art account of the physics behind the theoretical foundation and applications of nuclear medicine. It covers important physical aspects of the methods and instruments involved in modern nuclear medicine, along with related biological topics. The book first discusses the physics of and machines for producing radioisotopes suitable for use in conventional nuclear medicine and PET. After focusing on positron physics and the applications of positrons in medicine and biology, it descr

  19. Börs nutab taga Eesti Energia loobumist / Jaana Pikalev ; kommenteerinud Jürgen Ligi, Sandor Liive

    Index Scriptorium Estoniae

    Pikalev, Jaana

    2010-01-01

    SEB privaatpanganduse osakonna strateeg Peeter Koppel, LHV Panga analüütik Sten Pisang, investor Stefan Andresson avaldavad arvamust seoses otsusega Eesti Energia veel mitte börsile viia. Majandus- ja kommunikatsiooniminister Juhan Partsi arvamus

  20. Eesti Energia börsile minek aitaks sündida tugeval rahvaaktsial / Raigo Neudorf ; kommenteerinud Heldur Meerits

    Index Scriptorium Estoniae

    Neudorf, Raigo

    2010-01-01

    Tallinna Börsi hinnangul aitaks Eesti Energia bösile toomine kaasa tugeva rahvaaktsia sündimisele, sest suur ja tuntud firma meelitaks investeerima ka neid inimesi, kes seda seni veel teinud ei ole

  1. Regional Integration of Renewable Energies; Integracion Regional de energias Renovables

    Energy Technology Data Exchange (ETDEWEB)

    Amador Guerra, J.; Dominguez Bravo, J. [Ciemat.Madrid (Spain)

    2000-07-01

    The aim of this report is to show how Energetic Planning and Territorial Policy should be working together for a better integration of Renewable Energies into Region. This Integration should to contemplate social, economic and environmental aspects of the territory. The report has been classified into 7 items: planning, energetic scenarios, technology transfer for Renewable Energies dissemination, barriers for this dissemination, environmental aspects, European Union Policy and Decision Support Systems (and specially GIS). (Author) 54 refs.

  2. Eesti Energia: valitsus võtab aja maha ja laseb börsimõttel veel settida / Raimo Poom

    Index Scriptorium Estoniae

    Poom, Raimo

    2010-01-01

    Täna valitsuskabinetis toimuv arutelu ei paista keskenduvat mitte sellele, kas Eesti Energia börsile viimise plaan on hea või halb, vaid pigem sellele, kui kiire Eesti Energial oma plaanide rahastamisega on ning kas kõik ettevõtte soovid lähevad riigi eesmärkidega kokku. Eesti Energia investeeringute kava tekitab praegu rohkem küsimusi kui rahastamine

  3. Avaliação de empresas utilizando a teoria das opções reais : o caso de uma geradora de energia eólica

    OpenAIRE

    Nelson Alfredo Luna

    2011-01-01

    Esta dissertação tratará do tema da geração de energia elétrica no Brasil e a análise financeira de projetos. Mais especificamente será abordada a energia eólica a qual é o aproveitamento dos ventos para a geração de energia. Nos últimos 10 anos, a capacidade instalada mundial de energia eólica cresceu em média 28% ao ano sendo que na Europa 3% da energia consumida já tem origem nos ventos. No Brasil, esse tipo de aproveitamento atinge apenas 0,3% de participação no fornecimento de energia el...

  4. Nuclear effects in atomic transitions

    OpenAIRE

    Pálffy, Adriana

    2011-01-01

    Atomic electrons are sensitive to the properties of the nucleus they are bound to, such as nuclear mass, charge distribution, spin, magnetization distribution, or even excited level scheme. These nuclear parameters are reflected in the atomic transition energies. A very precise determination of atomic spectra may thus reveal information about the nucleus, otherwise hardly accessible via nuclear physics experiments. This work reviews theoretical and experimental aspects of the nuclear effects ...

  5. Novel Aspects of QCD in Leptoproduction

    CERN Document Server

    Brodsky, S J

    2004-01-01

    I review several topics in electroproduction which test fundamental aspects of QCD. These include the role of final-state interactions in producing diffractive leptoproduction processes, the shadowing of nuclear structure functions, and target-spin asymmetries. The antishadowing of nuclear structure functions is shown to be quark-flavor specific, suggesting that some part of the anomalous NuTeV result for $\\sin^2\\theta_W$ could be due to the non-universality of nuclear antishadowing for charged and neutral currents. I also discuss the physics of the heavy-quark sea, hidden color in nuclear wavefunctions, and evidence for color transparency for nuclear processes. The AdS/CFT correspondence connecting superstring theory to superconformal gauge theory has important implications for hadron phenomenology in the conformal limit, including an all-orders demonstration of counting rules for hard exclusive processes, as well as determining essential aspects of hadronic light-front wavefunctions.

  6. Nuclear medicine consensus; Consenso sobre medicina nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Camargo, Edwaldo E.; Marin Neto, Jose Antonio; Naccarato, Alberto F.P.; Ramires, Jose Antonio F.; Castro, Iran de; Paiva, Eleuses Vieira; Thom, Anneliese F.; Barroso, Adelanir; Blum, Bernardo; Hollanda, Ricardo; Mansur, Antonio de Padua

    1995-04-01

    The use of nuclear methods in cardiovascular diseases is studied concerning diagnosis, risk, prognosis, indications and accuracy. Aspects concerning chronic coronary artery disease, myocardial ischemia, myocardial infarction, viable myocardium, valvular heart disease, ventricular dysfunction, heart transplant, congenital heart diseases in adults, are discussed.

  7. Nuclear Structure Near the Drip Lines

    Energy Technology Data Exchange (ETDEWEB)

    Nazarewicz, W.

    1998-08-10

    Experiments with beams of unstable nuclei will make it possible to look closely into many aspects of the nuclear many-body problem. Theoretically, exotic nuclei represent a formidable challenge for the nuclear many-body theories and their power to predict nuclear properties in nuclear terra incognita.

  8. Nuclear Technique and Agriculture in China

    Institute of Scientific and Technical Information of China (English)

    Xu B.J.

    2004-01-01

    @@ Nuclear technique is a powerful scientific tool in agricultural research, an area with fruitful achievements in China. Application of nuclear technique in agriculture (Nuclear Agricultural Sciences) based on the development of related science and technology is a high-tech area, and also a significant aspect of non-electrical power application of nuclear technique.

  9. Nuclear Technique and Agriculture in China

    Institute of Scientific and Technical Information of China (English)

    Xu; B.J.

    2004-01-01

      Nuclear technique is a powerful scientific tool in agricultural research, an area with fruitful achievements in China. Application of nuclear technique in agriculture (Nuclear Agricultural Sciences) based on the development of related science and technology is a high-tech area, and also a significant aspect of non-electrical power application of nuclear technique.……

  10. Multimedia tutorial system to aid the technical training in energy cogeneration; Sistema tutorial multimedio para apoyar la capacitacion tecnica en cogeneracion de energia

    Energy Technology Data Exchange (ETDEWEB)

    Kemper Valverde, Nicolas; Lara Rosano, Felipe; Guerrero Briseno, Pedro [Laboratorio de Inteligencia Artificial, Instituto de Ingenieria UNAM, Mexico, D. F. (Mexico); Monedero De La Vega, Arturo F. [Seccion Ingenieria Energetica, DEPFI UNAM, Mexico, D. F. (Mexico)

    1994-12-31

    The incorporation of computer aided teaching technologies increases the efficiency in the transmission and acquisition of knowledge, allowing the handling of large information volumes, the knowledge homogenization among the students, the availability, the massive teaching and the permanent updating of the same. On the other hand, considering that all energy saving policy must be supported in a training and dissemination program of the respective energy technologies an immediate option is the use of computerized systems of teaching-learning. Precisely, in this paper, are presented the fundamental technical aspects for the development of a tutorial expert system, to aid the training in energy cogeneration, trying to integrate in the application, the usage of multimedia tools with the intelligent handling of the teaching-learning process through the inference machine of an expert system. [Espanol] La incorporacion de metodologias de ensenanza auxiliada por computadora incrementa la eficiencia en la transmision y adquisicion del conocimiento, permitiendo la manipulacion de grandes volumenes de informacion, la homogeneizacion del conocimiento en los educandos, la disponibilidad, masificacion y la permanente actualizacion del mismo. Por otro lado, considerando que toda politica de ahorro de energia debe estar soportada en un programa de capacitacion y de divulgacion de las tecnologias energeticas respectivas, una alternativa inmediata es el empleo de sistemas computarizados de ensenanza-aprendizaje. Precisamente, en este trabajo, se presenta los aspectos tecnicos fundamentales del desarrollo de un sistema experto tutorial para apoyar la capacitacion en cogeneracion de energia, tratando de integrar en la aplicacion, el empleo de las herramientas multimedios con el manejo inteligente del proceso de ensenanza-aprendizaje a traves de la maquina de inferencia de un sistema experto.

  11. A Índia e a África-Subsariana: O Paradigma da Energia

    OpenAIRE

    Ferreira, Leila Sofia Barros

    2015-01-01

    Com aproximadamente 1.2 mil milhões de habitantes, a Índia é o segundo país e a democracia mais populosa do mundo. Em termos energéticos, é o quarto maior consumidor de energia e o quarto maior importador mundial de petróleo. O desenvolvimento económico que se verificou na década de 90 fez acentuar um dos principais desafios com que a Índia se depara actualmente que é o de garantir fontes de energia para atender às necessidades da sua população. Para fazer face à dependência das importa...

  12. Materiais e energia: conversão termoquímica de combustíveis

    OpenAIRE

    Santos, Dulcínea; Gulyurtlu, Ibrahim; Cabrita, Isabel

    2010-01-01

    Os combustíveis fósseis são responsáveis pelo fornecimento de três quartos da energia consumida no mundo. Importantes desenvolvimentos têm sido e continuam a ser feitos na área da conversão termoquímica de combustíveis visando a produção e fornecimento seguro de energia a preços acessíveis e com reduzido teor de emissões para a atmosfera. Assim, a procura de materiais capazes de serem usados a temperaturas cada vez mais elevadas tem crescido continuamente nas últimas décadas. Neste trabalho é...

  13. Energy saving and efficiency in building; Ahorro de energia y eficiencia en edificios

    Energy Technology Data Exchange (ETDEWEB)

    Perez Sanchez, Maria M. [Universidad Autonoma de Yucatan, Merida, Yucatan (Mexico); Pacheco Aguilar, Francisco [Comision Federal de Electricidad, (Mexico)

    2000-07-01

    High energy consumption is one of the serious problems in the world today. Newly, this question has taken on not only economic, but also social and ecological importance. In order to reduce the amount of fossil energy, energy diagnosis are one of the most useful tools for increasing the energy efficiency in buildings. In the Faculty of Engineering, dependency of the Universidad Autonoma de Yucatan, Mexico a program of energy diagnosis was developed under an ongoing project entitled energy savings program, which begun in 1996. This paper describes a methodology about diagnosis building energy consumption building shell and energy efficiency in a case study. No doubt future developments are likely to lead to changes in the estimates. We hope that, nevertheless, this study will contribute to increased energy efficiency in this Faculty. [Spanish] En el mundo actual, uno de los problemas mas serios que se tienen es el elevado consumo de energia, que no solamente representa un problema economico sino que tambien abarca aspectos de indole social y ecologica. Con el fin de reducir el alto costo de la energia fosil, el diagnostico de energia es una de las herramientas mas poderosas para promover la eficiencia de los edificios. En la Facultad de Ingenieria, dependencia de la Universidad Autonoma de Yucatan, Mexico se esta llevando a efecto un diagnostico energetico perteneciente al programa de ahorros de energia que comenzo en el ano de 1996. En este estudio se describe una metodologia de diagnostico de ahorro energetico y eficiencia energetica de la envolvente termica en un estudio del caso, aplicado a los edificios de la Facultad de Ingenieria (FIUADY).

  14. Europa, energia e geoeconomia: infraestruturas prioritárias e novas soluções

    OpenAIRE

    Ribeiro, José Félix

    2012-01-01

    Em 2010 a Comissão Europeia avançou com a proposta de um conjunto de corredores e interconexões europeias na área da energia, que culmina um processo de definição gradual de uma estratégia geoeconómica para garantir maior segurança energética e sustentabilidade

  15. Aspects and Polymorphism in AspectJ

    DEFF Research Database (Denmark)

    Lorenz, David Harel; Ernst, Erik

    2003-01-01

    -oriented programming (AOP). In AOP, pieces of crosscutting behavior are extracted from the base code and localized in aspects, losing as a result their polymorphic capabilities while introducing new and unexplored issues. In this paper, we explore what kinds of polymorphism AOP languages should support, using AspectJ...... as the basis for the presentation. The results are not exclusive to AspectJ---aspectual polymorphism may make aspects in any comparable AOSD language more expressive and reusable across programs, while preserving safety....

  16. Technical aspects of the piezo, laser-assisted, and conventional methods for nuclear transfer of mouse oocytes and their efficiency and efficacy: Piezo minimizes damage of the ooplasmic membrane at injection.

    Science.gov (United States)

    Chen, Shee-Uan; Chao, Kuang-Han; Chang, Chia-Yi; Hsieh, Fon-Jou; Ho, Hong-Nerng; Yang, Yu-Shih

    2004-04-01

    Assessment of the advantages and disadvantages of the piezo, laser, and conventional methods for nuclear transfer has remained elusive. Furthermore, although the piezo method had been used by some investigators for research of sperm injection and nuclear transfer for several years, many researchers have failed to operate the technique smoothly and achieve reproducible results. The procedures of nuclear transfer using piezo were ascertained and described in detail. Mouse oocytes were enucleated, and injected with cumulus cells using the piezo, laser, or conventional methods. We investigated the time needed and survival of nuclear transfer. Development was compared among the three methods and parthenogenetic control specimens. The average time of nuclear transfer for each oocyte was significantly shorter using the piezo (118 +/- 9 s) and laser methods (120 +/- 11 s) than using the conventional method (170 +/- 11 s). The damage rate was smaller for the piezo group (10%) than the laser (37%) and conventional (40%) groups. The percentages of blastocyst formation (14%, 12%, and 11%) and the number of nuclei of blastocysts (54 +/- 13, 51 +/- 11, and 52 +/- 12) were similar among the piezo, laser, and conventional groups, but significantly lower than for the control group (83%, 105 +/- 14). The piezo technique is more efficient than the conventional method for nuclear transfer. The laser method is easy to operate, but the equipment is expensive. In addition, piezo induced fewer traumas while breaking the membrane than the aspiration techniques used in the laser and conventional methods.

  17. Techniques of thermal energy conservation; Tecnicas de conservacion de la energia termica

    Energy Technology Data Exchange (ETDEWEB)

    Caltenco Estevez, Juan Luis; Roblez Lopez, Francisco; Ceballos Serna, Andres Alberto [Instituto Mexicano del Petroleo (Mexico)

    1996-07-01

    In modern industry the thermal energy is the energy more intensely used, which implies that in the processes and equipment that operate based on it, rely the greatest opportunities for saving . In this paper some saving and conservation techniques of thermal energy, which nowadays have been developed, are presented, whose application has helped to the successful attainment of the objectives of increased productivity of industrial plants, with the additional benefit of reducing the environmental impact of the production activities. [Spanish] En la industria moderna la energia termica es la forma de energia mas intensamente utilizada, lo cual implica que en los procesos y equipos que operan basandose en esta, residan las mayores oportunidades de ahorro. En este trabajo se presentan algunas de las tecnicas de ahorro y conservacion de energia termica, que hoy en dia se han desarrollado, cuya aplicacion ha coadyuvado a la consecucion exitosa de los objetivos de incremento de la productividad de plantas industriales, con el beneficio adicional de reducir el impacto ambiental de las actividades productivas.

  18. Nuclear Confidence

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    The Fukushima nuclear accident provides valuable lessons for China national nuclear Corp.as it continues to expand its operations AS Japan’s Fukushima nuclear crisis sparks a global debate over nuclear safety,China National Nuclear Corp. (CNNC),the country’s largest nuclear plant operator, comes under the spotlight.

  19. AspectKE*

    DEFF Research Database (Denmark)

    Yang, Fan; Masuhara, Hidehiko; Aotani, Tomoyuki

    2010-01-01

    Enforcing security policies to distributed systems is difficult, in particular, when a system contains untrusted components. We designed AspectKE*, a distributed AOP language based on a tuple space, to tackle this issue. In AspectKE*, aspects can enforce access control policies that depend......KE*, and demonstrate usefulness of AspectKE* through a security aspect for a distributed chat system....

  20. A Study on the Nuclear Foreign Policy

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Byung Wook; Lee, H. M.; Ko, H. S.; Ryu, J. S.; Oh, K. B.; Yang, M. H.; Lee, K. S

    2007-12-15

    This study approaches the international trends related to nuclear non-proliferation in four aspects. First, this study analyzes the trend of the international nuclear non-proliferation regime, which includes the Treaty on the Non-proliferation of Nuclear Weapons (NPT), the international nuclear export control regime and proposals for assurance of nuclear fuel supply. Second, this study analyzes the trend of international nuclear organizations, which includes the International Atomic Energy Agency (IAEA), a central body of development of nuclear technology and international nuclear diplomacy, and the Organization for Economic Co-operation and Development/Nuclear Energy Agency (OECD/NEA), a intergovernmental organization to consist of a group of nuclear advanced countries. Third, this study analyzes the trends of the U.S.'s nuclear foreign policies, particularly nuclear non-proliferation. Fourth, this study analyzes the nuclear issues of North Korea and Iran as they cause serious concerns to a international society.

  1. Energy, environment and labor unions; Energia, meio ambiente e sindicatos

    Energy Technology Data Exchange (ETDEWEB)

    Moral Hernandez, Francisco del; Bermann, Celio [Universidade de Sao Paulo (USP), SP (Brazil). Inst. de Eletrotecnica e Energia. Programa Interunidades de Pos-graduacao em Energia]. E-mail: delmoral@hotmail.com; cbermann@iee.usp.br

    2006-07-01

    This article rises up reflexions on the energy policy perception and formulation by the syndicate movements, as far the socio environmental aspects are concerning. In the first part conceptual reflexions are reached on the political and possible conflicts and limitation of the syndicate acting specifically those one connected to the electrical sector. The second one which is based on an investigation of syndicate documents and interviews, develops comments with base on observed syndicate behaviours, the adhesion, subordination or resistance (some elements usual of marxist analysis of the relationship capital-labor) from the syndicate movements on environmental aspects of the energy politics in force. The conclusive part reflexions are made on the possible alliances (tactical or strategic) between the syndical movements and environmental movement.

  2. Risk control in energy saving projects; Control de riesgo en los proyectos de ahorro de energia

    Energy Technology Data Exchange (ETDEWEB)

    Mills, Evan [Lawrence Berkeley National Laboratory, CA (United States)

    2005-10-15

    Since one of the restrictive problems when investing in energy saving is the uncertainty of obtaining the planed savings, a technique in the risk handling for energy efficiency projects, called Insurance for the Energy Saving (IES) is presented. IES economically stimulates those who implement projects for energy saving so they go beyond the normal measures and really obtain significant saving levels, thus contributing to the fulfillment of national objectives in energy saving. In order to reduce the risk of low performance in energy caused by saving projects there exist the international performance measurement and the protocol of investment (IMPVP) as well as diagnoses and starting processes, whereas in order to transfer the financial risk that a saving project represents, mechanisms such as FDIC insurance, conversion of the debt in values, Saving's Guarantees, Performance Bonuses or Guarantee Bonuses and Insurances for Energy Saving can be of great help. This article deals on the IES insurance policies, their loss control management, successful cases, benefits, particular advantages, place in the market and refers argued insurance exceptions and perception surveys. [Spanish] Dado que uno de los problemas restrictivos a la hora de invertir en el ahorro de energia es la incertidumbre de obtener los ahorros proyectados, se presenta una tecnica en el manejo del riesgo para proyectos de eficiencia energetica llamada Seguro para el Ahorro de Energia (SAE). SAE estimula financieramente a quienes implementan proyectos para el ahorro de energia con el fin de que vayan mas alla de las medidas normales y consigan niveles significativos de ahorro, contribuyendo asi al cumplimiento de objetivos nacionales de ahorro energetico. Para reducir el riesgo de bajo desempeno de energia provocados por proyectos de ahorro existe la medicion del desempeno internacional y el protocolo de inversion (IMPVP) asi como diagnosticos y procesos de arranque, mientras que para transferir el

  3. Weather impact on the electric energy consumption of domestic users; Impacto del clima en el consumo de energia electrica en los usuarios domesticos

    Energy Technology Data Exchange (ETDEWEB)

    Ramos Niembro, Gaudencio; Fiscal Escalante, Raul [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1998-12-31

    It is said that when an energy saving and efficient use of energy program is implemented it must be a business for three: the user, the society and the electric utility. In respect to the user, his decision making is quite simple: is it cheaper or more expensive for me?. Unfortunately in many cases we want a very short return time or the money needed for the initial investment is not available. For instance, and incandescent bulb is several times less expensive than a compact fluorescent lamp, but if we make the calculation on the life-time and on the power consumption reduction of the compact fluorescent lamp, we can conclude that this one is more economic. The benefit for the society can be seen under many different aspects, being the most important the natural resources conservation and the environment. From the stand point of the utility the heavier possible factors are the postponement of the investments and the system reliability. When some of the programs of the Demand Side Management (DSM) are applied, the utilities support or promote non financially profitable but improve their image before the user, on creating a consciousness in the saving and in the efficient use of energy: a short term investment is made and a long term revenue is obtained. For this reason for an optimum selection and implementation the saving and the efficient use of electric energy measures a detailed knowledge of the consumption way is required. In this paper the importance of monitoring the way the different type of users employ the energy in order to make up decisions on DSM programs in many different scenarios: cities, type of users, income level, etc. is shown. [Espanol] Se dice que cuando se implementa un programa de ahorro y uso eficiente de la energia electrica, debe ser negocio para tres: el usuario, la sociedad y la empresa electrica. En lo que respecta al usuario, su toma de decision es muy simple: me resulta mas barato o mas caro. Desafortunadamente en muchos de los casos

  4. Nuclear risk management

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    This paper gives the list of contributions to Eurosafe 2001 which was organised around two round tables on the first day and five seminars on the second day. The first round table dealt with the technical, organisational and societal aspects of risk management aimed at the prevention of accidents in nuclear power plants. The second round table focused on radiological risks from the normal operation of nuclear installations. Special consideration has been given to the involvement of stakeholders. The five seminars were held in order to provide opportunities for comparing experiences and learning about recent activities of IRSN, GRS and their partners in the European Union and Eastern Europe: - Safety assessment and analysis of nuclear installations; -Nuclear safety research; -Environment and radiation protection; - Waste management; - Nuclear material security. (author)

  5. Nuclear moments

    CERN Document Server

    Kopferman, H; Massey, H S W

    1958-01-01

    Nuclear Moments focuses on the processes, methodologies, reactions, and transformations of molecules and atoms, including magnetic resonance and nuclear moments. The book first offers information on nuclear moments in free atoms and molecules, including theoretical foundations of hyperfine structure, isotope shift, spectra of diatomic molecules, and vector model of molecules. The manuscript then takes a look at nuclear moments in liquids and crystals. Discussions focus on nuclear paramagnetic and magnetic resonance and nuclear quadrupole resonance. The text discusses nuclear moments and nucl

  6. Nuclear safeguards; Salvaguardias nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Zurron, O.

    2015-07-01

    Safeguards control at the Juzbado Plant is implemented through the joint IAEA/EURATOM partnership approach in force within the European Union for all nuclear facilities. this verification agreement is designed to minimize burden on the operators whilst ensuring that both inspectorate achieve the objectives related to their respective safeguards regimes. This paper outlines the safeguards approaches followed by the inspectorate and the particularities of the Juzbado Plants nuclear material accountancy and control system. (Authors)

  7. Transfer of financial obligations for the disposal of nuclear waste and decommissioning of German NPP's. Legal aspects of a trust model; Sicherstellung der finanziellen Entsorgungsvorsorge fuer die Stilllegungs- und Rueckbaukosten der deutschen Kernkraftwerke. Rechtliche Randbedingungen eines Stiftungsmodells

    Energy Technology Data Exchange (ETDEWEB)

    Schewe, Markus; Wiesendahl, Stefan [Kuemmerlein Rechtsanwaelte und Notare, Essen (Germany)

    2015-04-15

    The nuclear power plant operators have to bear the costs associated with the closure and the decommissioning of the German nuclear power plants as well as the costs for the disposal of nuclear waste. For that purpose, the operators have to build up sufficient reserves for the decommissioning phase. These reserves at the end of 2013 amounted to approximately 36 billion Euro. Changing this system is discussed very so often. Last in May 2014, a public debate started dealing with the so called trust model (''Stiftungsmodell''). The press published deliberations of several operators to transfer their entire nuclear business to the Federal Republic of Germany. Under this deliberation the current nuclear power plant operations, as well as closure obligations would be contributed to trust. Further, also the reserves should be ''transferred'' to the trust. RAG-Foundation (RAG-Stiftung) - which will assume the financial obligations in connection with Germany's closure of underground coal mining activities - sometimes is cited as a role model. The article covers elements of German trust law and atomic energy law regarding such deliberations. In trust law e.g. it can be debated whether the trust should be established under public or - as in the case of RAG-Foundation - under private law. In this context we will set out the major differences between those two options. In the public law part we will notably address issues arising from individual licensing requirements for nuclear power plants and focus on questions concerning reliability, requisite qualification and organizational structures.

  8. Economic and environmental study for the wind power generation in the region of Bajio; Estudio economico y medio ambiental para la generacion de energia eolica en la region del Bajio

    Energy Technology Data Exchange (ETDEWEB)

    Martinez Patino, Jesus; Hernandez Figueroa, Miguel A.; Ireta Moreno, Fernando [Universidad de Guanajuato, Campus Irapuato-Salamanca, Salamanca, Guanajuato (Mexico)]. E-mail: jesusmp23@salamanca.ugto.mx; mahf@salamanca.ugto.mx; fireta@salamanca.ugto.mx; Rubio Maya, Carlos; Galvan Gonzalez, Sergio Ricardo [Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan (Mexico)]. E-mail: rmaya@umich.mx; srgalvan@umich.mx

    2010-11-15

    The presented study is divided into two main issues for wind energy generation: the economical scope, and the environment. A comparison from different perspectives is made between both costs. The study is focused in the Mexico central region called Bajio, where the wind data is obtained. The usage of different types of wind turbines is planned to generate electricity, and a comparison is made between them in different aspects. An invest of 20 years is expected for this equip. While comparing the costs, the estimated by emissions of CO{sup 2} by kW/h generated (environmental cost), with these cost it is showed the quantities of CO{sup 2} that can be stopped of emitting to the atmosphere by the use of fossil fuels. The data encourages the use of renewable energy in relation with the wind potential in the region. This is how the presented study shows the options of decision making to implement and viability of the usage of wind turbines for the production of electric energy under the wind conditions provided by the Bajio region. [Spanish] El estudio que se presenta se divide en dos principales puntos para la generacion de energia eolica: el ambito economico y el medio ambiental. Se realiza un comparativo entre ambos costos desde diferentes perspectivas. El estudio se concentra en la region del Bajio donde se obtienen los datos del viento. Se plantea el uso de diversos tipos de aerogeneradores para la generacion de energia electrica comparandolos entre si en varios aspectos. Para estos equipos se tiene contemplada una inversion a 20 anos. En la comparativa de costos resalta el estimado por la emision de CO{sup 2} por kW/h generado (Costo medioambiental), con este costo se pone de manifiesto las cantidades de CO{sup 2} que se pueden dejar de enviar a la atmosfera por el uso de combustibles fosiles, los datos alientan el uso de la energia renovable en relacion tambien al potencial de viento que se tiene en la region. De esta manera, el estudio presentado en el trabajo

  9. An introduction to nuclear physics

    CERN Document Server

    Jana, Yatramohan

    2015-01-01

    AN INTRODUCTION TO NUCLEAR PHYSICS explores the nucleus - its size, shape and structure, its static and dynamic properties, its interaction with external system (particles and radiation), and above all the nuclear interaction in the two-nucleon and many-nucleon systems. It covers all aspects of the nucleus, divided into five Parts and nineteen Chapters. Part-1 introduces nuclear binding energy, separation energy and nuclear stability. Part-2 explores the two-nucleon potential through the study of the deuteron problem, nucleon-nucleon scattering, and also presents a meson theoretical description of the nuclear potential. Part-3 deals with the nuclear structure through different models, e.g., liquid-drop model, Fermi gas model, nuclear shell model, collective model. Part-4 develops different theoretical models for nuclear reactions, e.g., compound nucleus, statistical model, continuum model, optical model, direct reaction mechanism.

  10. Proceedings of the 24. National seminar on the rational use of energy and exposition of equipment and services and 7. Binational seminar on energy saving [Selected Papers]; 24. Seminario nacional sobre el uso racional de energia y exposicion de equipos y servicios y 7. Seminario binacional de ahorro de energia. Memoria Tecnica. [Ponencias seleccionadas

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-07-01

    This document contains the technical briefings of the 24. National Seminar on the rational use of energy, and exhibition of the equipment and services and the 7. Binational seminar on energy saving, organized by the Asociacion de Profesionistas y Tecnicos en Aplicacion Energetica (ATPAE), in Ciudad Juarez, Chihuahua, Mexico, from November 9 to 11, 2005. This seminar dealt with subjects such as: electrical energy saving, energy distribution, solar energy, energy saving in compressed air, biomass, administration and control of the demand of the electrical energy, bioclimatic architecture, use of the compressed natural gas, renewable energy, co-generation, qualification and consultancy for the intelligent use of the energy in PyMES. [Spanish] Este documento contiene la memoria tecnica del 24 Seminario Nacional sobre el uso racional de energia, y exposicion de los equipos y servicios y el 7 Seminario binacional de ahorro de energia, organizado por la Asociacion de Tecnicos y Profesionistas en Aplicacion Energetica (ATPAE), en Ciudad Juarez, Chihuahua, Mexico, del 9 al 11 de noviembre del 2005. Este seminario trato temas tales como: ahorro de energia electrica, distribucion de la energia, energia solar, ahorro de energia en aire comprimido, biomasa, administracion y control de la demanda de la energia electrica, arquitectura bioclimatica, uso del gas natural comprimido, energia renovable, cogeneracion, capacitacion y consultoria para el uso inteligente de la energia en las Pymes.

  11. Energy from nuclear fission an introduction

    CERN Document Server

    De Sanctis, Enzo; Ripani, Marco

    2016-01-01

    This book provides an overview on nuclear physics and energy production from nuclear fission. It serves as a readable and reliable source of information for anyone who wants to have a well-balanced opinion about exploitation of nuclear fission in power plants. The text is divided into two parts; the first covers the basics of nuclear forces and properties of nuclei, nuclear collisions, nuclear stability, radioactivity, and provides a detailed discussion of nuclear fission and relevant topics in its application to energy production. The second part covers the basic technical aspects of nuclear fission reactors, nuclear fuel cycle and resources, safety, safeguards, and radioactive waste management. The book also contains a discussion of the biological effects of nuclear radiation and of radiation protection, and a summary of the ten most relevant nuclear accidents. The book is suitable for undergraduates in physics, nuclear engineering and other science subjects. However, the mathematics is kept at a level that...

  12. APLICAÇÃO DE UMA FONTE ALTERNATIVA DE ENERGIA TERMELÉTRICA A GÁS NATURAL VISANDO REDUZIR O CUSTO COM ENERGIA ELÉTRICA EM UM EDIFÍCIO COMERCIAL

    Directory of Open Access Journals (Sweden)

    Alvaro Antonio Ochoa

    2015-02-01

    Full Text Available Este trabalho tem como objetivo reduzir o consumo de energia elétrica de um Edifício Comercial, através da utilização de uma unidade termelétrica (grupo gerador que opera com gás natural. A unidade termelétrica servirá como uma fonte alternativa de energia na matriz energética do empreendimento. O custo de energia elétrica representa um impacto considerável nos custos operacionais do edifício. A análise quantitativa dos dados de consumo de energia do Edifício Comercial estudado, associado ao conhecimento do sistema tarifário hora-sazonal foi fundamental para determinar a viabilidade do projeto. Além disto, foi verificada a viabilidade econômica do projeto, tendo como base dois parâmetros financeiros de tempo de retorno (payback e critério do valor presente líquido (CVPL. Os resultados permitiram demonstrar, que realmente é tecnicamente e economicamente viável a aplicação do investimento neste projeto, obtendo uma redução de consumo de energia elétrica de aproximadamente 20% a. m., o equivalente a R$295.000,00 menos do valor pago mensalmente. Outro ganho é que o Edifício Comercial diversificou suas fontes de energia elétrica e assim permanecerá com alimentação elétrica quando houver interrupção no fornecimento da rede pública.

  13. Energy balance of the metropolitan zone of the valley of Mexico, methodology and the entailment energy-air quality; Balance de energia de la zona metropolitana del valle de Mexico metodologia y la vinculacion energia - calidad del aire

    Energy Technology Data Exchange (ETDEWEB)

    Bazan Navarrete, Gerardo [Universidad Nacional Autonoma de Mexico, Mexico, D.F. (Mexico)

    2001-07-01

    The present document raises a methodology for the elaboration of the Energy Balance of the Metropolitan Zone of the Valley of Mexico (ZMVM), in order to unify criteria and to facilitate the work of entities and investigators, mainly of those that require the entailment of energy and environment. The applied methodology, the consolidated format and the caloric unity facilitates the insertion of the Energy Balance of the ZMVM within the National Balance of Energy. The regional balances of energy have the intention of knowing the energy consumption patterns in the ZMVM and the indexes of energy intensity by sector. They establish the relationship of the indexes of energy intensity with the local and global air quality of the region, performing studies of incidence with the main polluting agents and with the greenhouse effect gases. [Spanish] El presente documento plantea una metodologia para la elaboracion del Balance de Energia de la Zona Metropolitana del Valle de Mexico (ZMVM), con el proposito de unificar criterios y facilitar el trabajo de organismos e investigadores, sobre todo de aquellos que requieren vincular energia y medio ambiente. La metodologia aplicad, el formato consolidado y la unidad calorica facilitan la insercion del Balance de Energia de la ZMVM dentro del Balance Nacional de Energia. Los balances regionales de energia tienen el proposito de conocer los patrones de consumo de energia en la ZMVM y los indices de intensidad energetica por sector. Establecen la relacion de los indices de intensidad energetica con la calidad del aire local y global de la region, realizando estudios de incidencia con los principales contaminantes y con los gases de efecto invernadero.

  14. Nuclear Security Futures Scenarios.

    Energy Technology Data Exchange (ETDEWEB)

    Keller, Elizabeth James Kistin [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Warren, Drake Edward [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Hayden, Nancy Kay [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Passell, Howard D. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Malczynski, Leonard A. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Backus, George A. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-01-01

    This report provides an overview of the scenarios used in strategic futures workshops conducted at Sandia on September 21 and 29, 2016. The workshops, designed and facilitated by analysts in Center 100, used scenarios to enable thought leaders to think collectively about the changing aspects of global nuclear security and the potential implications for the US Government and Sandia National Laboratories.

  15. Aspect and Reference time

    NARCIS (Netherlands)

    Borik, O.

    2002-01-01

    This thesis provides a theory of aspect in Russian based on the notion of Reference time. The main claim advocated in this study is that there are two types of aspect, predicational/telicity aspect and perspective or Reference time aspect. It is argued that these two types should be carefully distin

  16. Electric energy saving in the cellulose and paper industry; Ahorro de energia electrica en la industria de celulosa y papel

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-12-31

    This paper delineates the results of the demonstration project for electric energy saving, which is one of the twenty four projects in which the Fideicomiso de Apoyo al Programa de Ahorro de Energia (FIDE) sponsors the diagnosis as well as the applied measures and the measures currently in application. Also the potential opportunity areas and the measures applied and in course of application, as well as the required investments and their recuperation periods. [Espanol] En este trabajo se describen los resultados del proyecto de demostracion de ahorro de energia electrica que es uno de los veinticuatro proyectos, en los que el Fideicomiso de Apoyo al Programa de Ahorro de Energia (FIDE) financia tanto el diagnostico como la aplicacion de medidas. Se presentan tanto las areas de oportunidad, potenciales y medidas aplicadas y en aplicacion, asi como las inversiones requeridas y los periodos de recuperacion de las mismas.

  17. Nuclear ventriculography

    Science.gov (United States)

    ... ventriculography (RNV); Multiple gate acquisition scan (MUGA); Nuclear cardiology; Cardiomyopathy - nuclear ventriculography ... 56. Udelson JE, Dilsizian V, Bonow RO. Nuclear cardiology. In: Bonow RO, Mann DL, Zipes DP, Libby ...

  18. Nuclear Medicine.

    Science.gov (United States)

    Badawi, Ramsey D.

    2001-01-01

    Describes the use of nuclear medicine techniques in diagnosis and therapy. Describes instrumentation in diagnostic nuclear medicine and predicts future trends in nuclear medicine imaging technology. (Author/MM)

  19. Advanced Measuring (Instrumentation Methods for Nuclear Installations: A Review

    Directory of Open Access Journals (Sweden)

    Wang Qiu-kuan

    2012-01-01

    Full Text Available The nuclear technology has been widely used in the world. The research of measurement in nuclear installations involves many aspects, such as nuclear reactors, nuclear fuel cycle, safety and security, nuclear accident, after action, analysis, and environmental applications. In last decades, many advanced measuring devices and techniques have been widely applied in nuclear installations. This paper mainly introduces the development of the measuring (instrumentation methods for nuclear installations and the applications of these instruments and methods.

  20. CONSUMO DE ENERGIA ELÉTRICA: UMA ANÁLISE DE FONTE ALTERNATIVA DE COLETOR SOLAR DE BAIXO CUSTO

    Directory of Open Access Journals (Sweden)

    Ramon Alves de Oliveira

    2015-08-01

    Full Text Available Com o aumento do consumo de energia elétrica e tarifas, a procura por geração de energias alternativas vem crescendo gradativamente, principalmente que sejam de baixo custo, assim possibilitando uma maior inclusão social beneficiando também as residências de baixa renda. Com o espírito de inovação a pesquisa buscou ideias simples que possam contribuir para a sociedade buscando alternativas sustentáveis e de baixo custo para a economia de energia elétrica Esse artigo teve como objetivo desenvolver um Coletor Solar de baixo custo. A metodologia utilizada foi quantitativa descritiva de caráter exploratório. Os procedimentos adotados foram uma pesquisa bibliográfica e desenvolvimento de um protótipo como procedimento experimental para coleta de dados. Dados os resultados nota-se que os testes realizados com o coletor solar de baixo custo, obteve um resultado com a temperatura da água para o banho de 37,1°C superior ao do chuveiro elétrico de 35,5°C. Com esse resultado o coletor solar se mostra, eficiente no quesito temperatura de banho e uma alternativa eficiente para a geração de energia térmica para aquecimento da água, além de reduzir a energia elétrica consumida em uma residência ao substituir o chuveiro tradicional que tem mais de 5000W , que é considerado um vilão para o consumo de energia elétrica.

  1. Trabalho de jornalismo científico para conservação de energia: fundamentos de uma proposta

    Directory of Open Access Journals (Sweden)

    Lic. Vânia Mattozo

    2000-01-01

    Full Text Available Este artigo trata dos fundamentos de um trabalho de jornalismo científico aplicado na área de conservação de energia: a relação entre desenvolvimento, energia e ambiente. Novas tecnologias e políticas que buscam fornecer os serviços energéticos necessários com menor custo social e ambiental permanecem desconhecidas para o grande público, impedindo o acesso a informações sobre um novo tipo de desenvolvimento.

  2. Trabalho de jornalismo científico para conservação de energia: fundamentos de uma proposta

    OpenAIRE

    Lic. Vânia Mattozo; Lic. C. Celso Brasil Camargo; Lic. Nilson Lemos Lage

    2000-01-01

    Este artigo trata dos fundamentos de um trabalho de jornalismo científico aplicado na área de conservação de energia: a relação entre desenvolvimento, energia e ambiente. Novas tecnologias e políticas que buscam fornecer os serviços energéticos necessários com menor custo social e ambiental permanecem desconhecidas para o grande público, impedindo o acesso a informações sobre um novo tipo de desenvolvimento.

  3. Handbook of the energy sector 1992-1997; 1. ed.; Prontuario del sector de energia 1992-1997

    Energy Technology Data Exchange (ETDEWEB)

    Garcia Fuentes, Adrian; Ylizaliturri Ridriguez, Jose Carlos; Aguilar Alejandre, Vicente; Gomez Chiu, Rebeca [Secretaria de Energia, Mexico, D. F. (Mexico)

    1998-12-31

    The planning of the energy sector requires a detailed knowledge of the relations that exist among the International markets of energy and the position of Mexico with respect to these. The Handbook of the energy sector 1992-1997 analyzes the tendency of the International markets of energy and the relative importance of the countries in relationship to its resources, production volumes, energy demand, fuel prices and foreign trade. It allows to know how and to what extent the energy sector has responded to the new economic conditions of the country and to the global tendencies, presenting statistics of easy consultation, updated information at International level on the reserves, installed capacity, production, consumption, prices and commerce of the main energy sources, and of the position of Mexico within this context. The information consists of seven chapters: First, analyzes the world-wide balance of energy, detailing the consumption of primary energy by region and source; in the second, the main crude petroleum statistics are analyzed, of selected countries; the third analyzes the refined products of petroleum, the fourth analyzes the world-wide natural gas reserves; the fifth the world-wide coal reserves and the sixth, the installed capacity of electricity generation in several countries. [Espanol] La planeacion del sector de energia requiere un conocimiento detallado de las relaciones que existen entre los mercados internacionales de energia y la posicion de Mexico con respecto a estos. El Prontuario del sector de energia 1992-1997 analiza la tendencia de los mercados internacionales de energia y la importancia relativa de los paises en relacion con sus recursos, volumenes de produccion, demanda de energia, precios de combustibles y comercio exterior. Permite conocer como y en que medida el sector de energia ha respondido a las nuevas condiciones economicas del pais y a las tendencias globales, al presentar estadisticas de facil consulta, de informacion

  4. Estratégias no uso da energia luminosa por plantas jovens de Genipa spruceana Steyerm submetidas ao alagamento

    OpenAIRE

    Gonçalves,José Francisco de Carvalho; Melo,Emanuele Gurgel de Freitas; Silva, Carlos Eduardo Moura da; Ferreira,Marciel José; Justino,Gilberto Costa

    2012-01-01

    Na tentativa de elucidar estratégias de utilização da energia luminosa em plantas jovens de Genipa spruceana Steyerm submetidas ao alagamento, nós investigamos a capacidade de captura e uso de energia luminosa em G. spruceana sob três condições de crescimento: 1- ausência de alagamento (SA), 2- plantas parcialmente alagadas (PA) e 3- plantas totalmente alagadas (TA). Medidas de área foliar específica, teores de pigmentos cloroplastídicos e fluorescência da clorofila a foram feitas em interval...

  5. Competitive policies in the Nordic energy research and innovation area - eNERGIA : Part 3: Special reports

    Energy Technology Data Exchange (ETDEWEB)

    Klitkou, Antje; Pedersen, Trond Einar; Scordato, Lisa; Mariussen, Aage

    2008-07-01

    This report (Part 3: Special reports) is the third in a series of four reporting the results of the eNERGIA project. The first report presents the eight countries examined in the project - Denmark, Finland, Iceland, Norway, Sweden, Estonia, Latvia and Lithuania. The second report deals mainly with selected renewable energy technologies, which are discussed from different perspectives. The fourth report provides a summary of the whole project. The present report summarises the SWOT analyses of the Nordic countries and the eNERGIA workshops, and presents case studies of good practice. (Author) refs., 1 fig., 10 tabs

  6. The privatised energy as an imperialist picklock; La energia privatizada como ganzua imperialista

    Energy Technology Data Exchange (ETDEWEB)

    Krieger Vazquez, Emilio [Asociacion Nacional de Abogados Democraticos (ANAD), Mexico, D. F. (Mexico)

    1997-12-31

    In this document an analysis is made of the energy privatization in Mexico, in which the obstacles that the Mexico`s Energy Sectors have gone through are mentioned, beginning with the 1910 revolutionary movement in Mexico, where the nationalization of energy sources sprang up, until the arrival of the Salinas-Zedillo phase. This in order to see if it is feasible or not the energy privatization, since as it must be remembered the various decades of the 19 and part of the 20 century in which an ideological debate and an economic battle was held among those who thought that the energy regime incorporated into the system of private property and those who thought that the economic and strategic importance of the hydrocarbons and the electricity justified a special regime [Espanol] En este documento se realiza un analisis de la privatizacion de la energia en Mexico, en el cual se mencionan los obstaculos que el Sector Energetico de Mexico ha tenido que pasar, iniciando por el movimiento revolucionario de 1910 en Mexico, de donde surgio la nacionalizacion de las fuentes de energia, hasta llegar a la fase Salino-Zedillo. Esto con el fin de ver si es factible o no la privatizacion de la energia, ya que como se debe de recordar las varias decadas del siglo 19y parte del siglo 20en las cuales se mantuvo el debate ideologico y la batalla economica, entre quienes pensaban en un regimen energetico incorporado al sistema de propiedad privada y quienes pensaban que la importancia economica y estrategica de los hidrocarburos y de la electricidad justificaban un regimen especial

  7. Nuclear Theory - Nuclear Power

    Science.gov (United States)

    Svenne, J. P.; Canton, L.; Kozier, K. S.

    2008-01-01

    The results from modern nuclear theory are accurate and reliable enough to be used for practical applications, in particular for scattering that involves few-nucleon systems of importance to nuclear power. Using well-established nucleon-nucleon (NN) interactions that fit well the NN scattering data, and the AGS form of the three-body theory, we have performed precise calculations of low-energy neutron-deuteron (n+d) scattering. We show that three-nucleon force effects that have impact on the low-energy vector analyzing powers have no practical effects on the angular distribution of the n+d cross-section. There appear to be problems for this scattering in the evaluated nuclear data file (ENDF) libraries, at the incident neutron energies less than 3.2 MeV. Supporting experimental data in this energy region are rather old (>25 years), sparse and often inconsistent. Our three-body results at low energies, 50 keV to 10.0 MeV, are compared to the ENDF/B-VII.0 and JENDL (Japanese Evaluated Nuclear Data Library) -3.3 evaluated angular distributions. The impact of these results on the calculated reactivity for various critical systems involving heavy water is shown.

  8. Renewable energies in the national power supply; Energias renovables en la oferta energetica nacional

    Energy Technology Data Exchange (ETDEWEB)

    Huacuz Villamar, Jorge M [Instituto de Investigaciones Electricas, Temixco, Morelos (Mexico)

    1999-07-01

    Mexico is a country endowed with abundant power resources. By the magnitude of its reserves and the installed production capacity. This article presents the different nonconventional energy resources which Mexico has, with the purpose of using them for the generation of electric energy. [Spanish] Mexico es un pais dotado de abundantes recursos energeticos. Por la magnitud de sus reservas y por la capacidad instalada de produccion. Este articulo presenta los diferentes recursos energeticos no convencionales con los que cuenta Mexico, con el fin de utilizarlos para la generacion de energia electrica.

  9. Fluxos de energia e desenvolvimento da cultura do abacaxizeiro Energy fluxes and development of pineapple crop

    OpenAIRE

    Cleber B. de Souza; Bernardo B. da Silva; Pedro V. de Azevedo; Vicente de P. R. da Silva

    2008-01-01

    O dossel vegetativo do abacaxizeiro varia consideravelmente desde o plantio das mudas até a cobertura completa, no final do ciclo produtivo. Um experimento agrometeorológico foi desenvolvido nos tabuleiros costeiros do estado da Paraíba, com o cultivo do abacaxi, cv. Pérola, de março de 2001 a julho de 2002, com o objetivo de analisar os efeitos dos componentes do balanço de energia sobre os diversos estágios de desenvolvimento do abacaxizeiro cultivado em condições de irrigação suplementar. ...

  10. Crise financeira, energia e sustentabilidade no Brasil Financial crisis, energy and sustainability in Brazil

    Directory of Open Access Journals (Sweden)

    Oswaldo Lucon

    2009-01-01

    Full Text Available A recente crise financeira global traz consigo efeitos como a redução da atividade econômica e, consequentemente, do consumo de energia. Essa pode ser uma importante oportunidade para reorganizar o sistema energético em bases mais sólidas e sustentáveis: a eficiência, a maior participação das fontes renováveis e a descentralização da produção de energia. O Brasil e outros países em desenvolvimento podem aproveitar a experiência dos países desenvolvidos em eficiência energética, complementando com um programa vigoroso em energias renováveis, particularmente as "modernas" (eólica, solar, biomassa e pequenas hidrelétricas. Entretanto, preocupa o cenário inercial nacional, baseado num aumento da participação das fontes fósseis de energia na matriz, na priorização dos recursos à exploração de petróleo e gás natural e na manutenção de padrões insustentáveis de produção e consumo.The recent global financial crisis brings about effects such as a reduction in the economic activity and consequently in energy consumption. This may be an important opportunity to reorganize the energy system under more solid and sustainable foundations: efficiency, higher share of renewables and decentralized energy production. Brazil and other developing countries can leapfrog the experience acquired by developed nations in energy efficiency, complementing with a vigorous program in renewables, particularly the "modern" (wind, solar, biomass and small hydros. However, there is a concern about the inertial Brazilian scenario, based on an increasing share of fossil fuels in the matrix, in prioritizing resources to oil and gas exploration and in the continuing unsustainable patterns of production and consumption.

  11. The scenario of power generation in Brazil; O cenario da geracao de energia no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Dupim, Ivaldete da Silva [Universidade Federal do ABC, Santo Andre, SP (Brazil); Abreu Junior, Otavio Castor de; Moreira, Joao Manoel Losada; Carajilescov, Pedro; Leite, Patricia Teixeira; Cicogna, Marcelo A.

    2008-07-01

    The values concerning to the production of national power today, the evolution of composition and the installed capacity of electric matrix between the years 1980-2005, the outlook for demand and supply of energy according to the 'Plano Decenal de Energia' (2006-2015) were used as information basis for this study and analysis of some peculiar characteristics of the management of the energy sector in Brazil. The main objective was to highlight the importance of hydroelectric generation in Brazil. Finally we tried to make the comparison of the costs of hydroelectric generation in relation to other alternative sources available in the country.

  12. Fontes de energias alternativas e os desafios para a cadeia produtiva automotiva

    OpenAIRE

    Alves, Marcelo Ivanildo dos Santos

    2011-01-01

    Resumo: A indústria automotiva sempre esteve envolta num processo permanente de inovações e mais recentemente ela vem passando por várias e importantes mudanças. Essas mudanças decorrem de três fatores fundamentais: motivações ambientais, preço do petróleo e novos mercados. Num cenário de aperfeiçoamento dos padrões atuais de propulsão veicular, percebe-se o surgimento de fontes de energias alternativas. Onde o etanol surge como alternativa e poderá ser adotado em determinados mercados, como ...

  13. Radionuclides for nuclear medicine: a nuclear physicists' view

    DEFF Research Database (Denmark)

    Cantone, M.; Haddad, F.; Harissopoulos, S.

    2013-01-01

    physics Methods and nuclear physics facilities are supporting the development and supply of medical radionuclides and how this support could be further strengthened in future. Aspects that will be addressed: •In recent years, the reactor-based supply chain of 99Mo/99mTc generators was repeatedly......NuPECC (the Nuclear Physics European Collaboration Committee, an expert committee of the European Science Foundation) has the mission to strengthen European Collaboration in nuclear science through the promotion of nuclear physics and its trans-disciplinary use and application. NuPECC is currently...... working on a report on “Nuclear Physics for Medicine” and has set up a working group to review the present status and prospects of radionuclides for nuclear medicine. An interim report will be presented to seek comments and constructive input from EANM members. In particular it is investigated how nuclear...

  14. Nuclear applications in manned space station

    Science.gov (United States)

    Brooksbank, W. A., Jr.; Sieren, G. J.

    1972-01-01

    The zirconium hydride reactor, coupled to a thermo-electric or Brayton conversion system, and the Pu 238 isotope/Brayton system, are considered to be the viable nuclear candidates for the modular space station electrical power system. The basic integration aspects of these nuclear electrical power systems are reviewed, including unique requirements imposed by the buildup and incremental utilization considerations of the modular station. Also treated are the various programmatic aspects of nuclear power system design and selection.

  15. Optimising AspectJ

    DEFF Research Database (Denmark)

    Avgustinov, Pavel; Christensen, Aske Simon; Hendren, Laurie

    2005-01-01

    AspectJ, an aspect-oriented extension of Java, is becoming increasingly popular. However, not much work has been directed at optimising compilers for AspectJ. Optimising AOP languages provides many new and interesting challenges for compiler writers, and this paper identifies and addresses three...... all of the techniques in this paper in abc, our AspectBench Compiler for AspectJ, and we demonstrate significant speedups with empirical results. Some of our techniques have already been integrated into the production AspectJ compiler, ajc 1.2.1....

  16. Energy conservation and contribution to the sustained development through action in the bioclimate design; Ahorro de energia y contribucion al desarrollo sustentable a partir de acciones de diseno bioclimatico

    Energy Technology Data Exchange (ETDEWEB)

    Garcia Chavez, J. R.; Dorantes Rodriguez, R. [Universidad Autonoma Metropolitana, Unidad Azcapotzalco, Mexico, D. F. (Mexico)

    1995-12-31

    The energy world crisis of 1973 besides the problems of supplying and the raise of prices also propitiated in various countries, a reaction aimed at the efficient use and conservation of energy and to the application of a common sense architecture: the BIOCLIMATIC ARCHITECTURE, which is based in utilization in the buildings of the alternate energies, such as the wind power, etc. The obtaining natural environmental comfort conditions and the saving and efficient use of energy in the buildings are the fundamental objectives of the BIOCLIMATIC ARCHITECTURE. Under these considerations several passive systems for the thermal control in buildings have been set forth, which have been applied in different climatic regions of the planet. This paper presents and analyzes the potential saving of energy through the implementation of practices such as the installation of artificial high efficiency lighting systems and passive cooling systems for the thermal control of an educational building -the central library of the Universidad Autonoma Metropolitana, Azcapotzalco Unit, located in Mexico City. The objective of this study is aimed at the reduction of the consumption of energy in the library and the attainment of comfortable hygrothermal environment for its occupants. Studies performed during the first stage of the research, have permitted the identification of a excessive energy consumption and lack of comfort hygrothermal conditions and the need of high quality air inside the library. These actions have been focussed to two aspects. The first one is related to the improvement in the operation of the electric installation and in the library lighting. These actions were based in the substitution of lamps, load balancing of the secondary circuits, checking and improvement of the electric insulation a better selectivity of lighting switches installation in the vicinity of windows and areas with greater natural illumination. The second aspect refers to the calculation, design

  17. Pilot study for the implantation of a high-energy neutrons field; Estudo piloto para a implantacao de um campo de neutrons de alta energia

    Energy Technology Data Exchange (ETDEWEB)

    Pinto, Jose Julio de O.; Mendes, Adriane C.; Federico, Claudio A.; Passaro, Angelo; Gaspar, Felipe de B., E-mail: jjfilos@hotmail.com, E-mail: adriane@ieav.cta.br, E-mail: claudiofederico@ieav.cta.br, E-mail: angelo@ieav.cta.br, E-mail: fbgaspar@ieav.cta.br [Instituto de Estudos Avancados (IEAv/DCTA), Sao Jose dos Campos, SP (Brazil); Pazianotto, Mauricio T., E-mail: mpazianotto@gmail.com [Instituto Tecnologico de Aeronautica (ITA/DCTA), Sao Jose dos Campos, SP (Brazil)

    2013-07-01

    In this work a theoretical study is presented for the implementation of a high-energy neutron field (14.1 MeV) produced by a neutron generator type DT (deuterium-tritium), to be installed in the premises of the Laboratorio de Radiacoes Ionizantes (LRI) of the Instituto de Estudos Avancados (IEAv). This evaluation was performed by means of computer simulation by Monte Carlo method, using the computer code MCNP5 (Monte Carlo N-Particle). The neutron spectra were simulated computationally for pre-selected points of the installation, allowing to estimate the beam quality in the positions provided for use of the direct beam. These simulations also allow assist the basement of a project to install the consistent D-T generator with the guidelines for radiation protection and radiation safety standards determined by the Comissao Nacional de Energia Nuclear (CNEN), by estimating the dose rates provided in accessible points to Individuals Occupationally Exposed (IOE) in the facility. The computational determination of spectra, fluxes and doses produced in different positions previously selected within and outside the laboratory, will serve as guidance from previous studies for the future installation of this generator in the physical facilities of the LRI.

  18. Discovering Early Aspects

    NARCIS (Netherlands)

    Baniassad, E.; Clements, P.; Araujo, J.; Moreira, A.; Rashid, A.; Tekinerdogan, B.

    2006-01-01

    Traditionally, aspect-oriented software development (AOSD) has focused on the software life cycle's implementation phase: aspects are identified and captured mainly in code. But aspects are evident earlier in the life cycle, such as during requirements gathering and architecture development. Identif

  19. Nuclear forensics: Soil content

    Energy Technology Data Exchange (ETDEWEB)

    Beebe, Merilyn Amy [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2015-08-31

    Nuclear Forensics is a growing field that is concerned with all stages of the process of creating and detonating a nuclear weapon. The main goal is to prevent nuclear attack by locating and securing nuclear material before it can be used in an aggressive manner. This stage of the process is mostly paperwork; laws, regulations, treaties, and declarations made by individual countries or by the UN Security Council. There is some preliminary leg work done in the form of field testing detection equipment and tracking down orphan materials; however, none of these have yielded any spectacular or useful results. In the event of a nuclear attack, the first step is to analyze the post detonation debris to aid in the identification of the responsible party. This aspect of the nuclear forensics process, while reactive in nature, is more scientific. A rock sample taken from the detonation site can be dissolved into liquid form and analyzed to determine its chemical composition. The chemical analysis of spent nuclear material can provide valuable information if properly processed and analyzed. In order to accurately evaluate the results, scientists require information on the natural occurring elements in the detonation zone. From this information, scientists can determine what percentage of the element originated in the bomb itself rather than the environment. To this end, element concentrations in soils from sixty-nine different cities are given, along with activity concentrations for uranium, thorium, potassium, and radium in various building materials. These data are used in the analysis program Python.

  20. Nuclear control

    Energy Technology Data Exchange (ETDEWEB)

    Yoon, Wan Kee [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1995-02-01

    International cooperation in nuclear industries requires nuclear control as prerequisites. The concept of nuclear control is based on the Treaty on the Non-proliferation of Nuclear Weapon (NPT). The International Atomic Energy Agency (IAEA) plays central role in implementing nuclear control. Nuclear control consists of nuclear safeguards, physical protection, and export/import control. Each member state of NPT is subject to the IAEA`s safeguards by concluding safeguards agreements with the IAEA. IAEA recommends member states to implement physical protection on nuclear materials by `The Physical Protection of Nuclear Material` and `The Convention on the Physical Protection of Nuclear Material` of IAEA. Export/Import Control is to deter development of nuclear weapons by controlling international trade on nuclear materials, nuclear equipments and technology. Current status of domestic and foreign nuclear control implementation including recent induction of national inspection system in Korea is described and functions of recently set-up Technology Center for Nuclear Control (TCNC) under the Korea Atomic Energy Research Institute (KAERI) are also explained. 6 tabs., 11 refs. (Author).

  1. Wind energy for electricity generation; Generacion electrica con energia del viento

    Energy Technology Data Exchange (ETDEWEB)

    Huacuz Villamar, Jorge M.; Borja Diaz, Marco Antonio R. [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1998-09-01

    A description is made of electricity generation utilizing wind energy (Eoloelectric Generation). The case of Mexico is reviewed in respect to this technology, mentioning a small power plant of 1.5 Megawatts installed by the Comision Federal de Electricidad in the zone of La Ventosa in the State of Oaxaca. Mention is made of the possible causes why Mexico has not advanced in this type of power plants for power generation as in other countries like Germany, Spain and India. The advance in these countries is shown as well as the growth statistics of the wind power in the world. It is concluded that there is not in Mexico a strategy for wind energy utilization for electricity generation in spite of the potential benefits this technology offers [Espanol] Se describe el caso de la generacion electrica utilizando la energia del viento (Generacion Eoloelectrica). Se aborda el caso de Mexico respecto a esta tecnologia, mencionando una pequena central de 1.5 Megawatts (MW) instalada por la Comision Federal de Electricidad (CFE) en la zona de la Ventosa, Oaxaca. Se mencionan las posibles causas por las que en Mexico este tipo de centrales de generacion de energia no ha avanzado como en otros paises, por ejemplo: Alemania, Espana y la India. Se muestran los avances de estos paises, asi como una estadistica del crecimiento de la generacion eoloelectrica en el mundo. Se concluye en que no existe en Mexico una estrategia para la generacion eoloelectrica a pesar de los beneficios potenciales que ofrece esta tecnologia

  2. Wind power prognosis statistical system; Sistema estadistico de pronostico de la energia eoloelectrica

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez Garcia, Alfredo; De la Torre Vega, Eli [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2009-07-01

    The integration of the first Aeolian farm of large scale (La Venta II) to the National Interconnected System requires taking into account the random and discontinuous nature of the Aeolian energy. An important tool, for this task, is a system for the prognosis of the Aeolian energy in the short term. For this reason, the Instituto of Investigaciones Electricas (IIE) developed a statistical model to realize this prognosis. The prediction is done through an adaptable linear combination of alternative competing models, where the weights given to each model are based on its more recent prognosis quality. Also, the application results of the prognoses system are presented and analyzed. [Spanish] La integracion de la primera grana eolica de gran escala (La Venta II) al Sistema Interconectado Nacional requiere tomar en cuenta la naturaleza aleatoria y discontinua de la energia eolica. Una importante herramienta, para esta tarea, es un sistema para el pronostico de la energia eolica a corto plazo. Por ello, el Instituto de Investigaciones Electricas (IIE) desarrollo un modelo estadistico para realizar este pronostico. La prediccion es hecha a traves de una combinacion lineal adaptable de modelos competidores alternativos, donde los pesos dados a cada modelo estan basados en su mas reciente calidad de pronostico. Tambien se presentan y analizan los resultados de la aplicacion del sistema de pronosticos.

  3. Potential of energy saving with photovoltaic systems; Potencialidad de ahorro de energia con sistemas fotovoltaicos

    Energy Technology Data Exchange (ETDEWEB)

    Guzman S, Eusebio; Bratu S, Neagu [Universidad Autonoma Metropolitana, Mexico, D. F. (Mexico)

    1998-12-31

    This paper presents an approach on the application of photovoltaic systems in energy saving. The problem of the electric energy demand in the coming years is analyzed and its consequences on the environment and on the energy reserves of conventional sources. A model of the electric circuit equivalent to a photovoltaic cell illustrates the behavior of the photovoltaic cell in function of the climatological conditions. The former in order to show some of the limiting factors in this type of generator. Also, the evolution of the applications of the photovoltaic systems and its forecasting in the installed capacity in the next 20 years, is described. [Espanol] En este trabajo se presenta un enfoque de la aplicacion de los sistemas fotovoltaicos en el ahorro de energia. Se plantea el problema del crecimiento de la demanda energetica en los proximos anos y sus consecuencias sobre el medio ambiente y las reservas de energia por fuentes convencionales. Un modelo del circuito electrico equivalente de una celda fotovoltaica ilustra el comportamiento del generador fotovoltaico en funcion de las condiciones climatologicas. Lo anterior con el fin de mostrar algunas limitantes de este tipo de generador. Tambien se describe la evolucion de las aplicaciones de los sistemas fotovoltaicos y el pronostico de la potencia instalada en los proximos 20 anos.

  4. Medidas reguladoras, normas e legislação portuguesa aplicável às energias renováveis e sugestões

    OpenAIRE

    Moreira, M. Fernanda T.; Júlio S Martins; Afonso, João L.

    2004-01-01

    Este artigo apresenta e explica, de forma breve, a legislação portuguesa aplicável às energias renováveis e os mecanismos de apoio para investimento e aquisição de equipamentos no território lusitano. Apresenta também sugestões para incentivar pequenos e médios consumidores, públicos e privados, a instalar nas suas propriedades pequenos parques para produção de energia eléctrica a partir de fontes de energia renovável, nomeadamente eólica e solar. Estes parques deveriam cumprir os requisitos ...

  5. ANÁLISE EXPERIMENTAL DA INFLUÊNCIA DA TECNOLOGIA HOMEPLUG NA QUALIDADE DA ENERGIA ELÉTRICA

    Directory of Open Access Journals (Sweden)

    Antonio Luiz Pereira de Siqueira Campos

    2008-03-01

    Full Text Available Trabalhos recentes têm estudado características do meio elétrico para a transmissão de dados, ruídos e técnicas empregadas na comunicação pela rede elétrica. A maioria dos trabalhos limita-se a fazer testes de desempenho do protocolo. Diversos pesquisadores têm se preocupado com a influência das transmissões de dados na rede elétrica sobre as comunicações sem fio, mas ninguém tem se preocupado com a influência dessas transmissões na qualidade da energia elétrica. Este trabalho apresenta resultados preliminares sobre o efeito produzido por redes de computadores que utilizam a tecnologia Homeplug 1.0 na qualidade da energia elétrica. Para isso, foram escolhidos parâmetros apropriados para análise da qualidade da energia elétrica, bem como, foram definidas as formas de se obter esses parâmetros. Foi montada uma rede de computadores, com modem’s PLC, no CEFET-RN e realizados testes iniciais para medição da qualidade de energia elétrica. Resultados numéricos são apresentados.

  6. Adoção da energia solar fotovoltaica em hospitais: revisando a literatura e algumas experiências internacionais

    Directory of Open Access Journals (Sweden)

    Juliane Barbosa dos Santos

    2013-09-01

    Full Text Available O Sol possui um papel de extrema importância para a existência dos seres humanos e o Brasil possui uma posição geográfica privilegiada para explorar a luz solar. A união desses dois fatores favorece o uso de células solares para conversão de energia solar em energia elétrica por meio da tecnologia fotovoltaica, tornando-se ótima alternativa de energia, principalmente por ser uma fonte limpa, gerando menores danos ao meio ambiente. Este trabalho tem por objetivo abordar a tecnologia fotovoltaica tendo como foco analítico os hospitais, por meio de casos de sucesso encontrados na literatura internacional. Os hospitais, mesmo executando serviços de total importância à sociedade, apresentam potencial poluidor capaz de causar danos à saúde das pessoas e ao meio ambiente que se localiza ao seu redor. Há estimativas de que as reservas brasileiras de petróleo sejam suficientes para 22 anos, tornando-se necessária a busca por novas fontes alternativas para a geração de energia.

  7. Strategies for energy saving in warm climate dwellings; Estrategias de ahorro de energia para viviendas en clima calido

    Energy Technology Data Exchange (ETDEWEB)

    Pilatowsky, I [Centro de Investigacion en Energia, Universidad Nacional Autonoma de Mexico (Mexico); Ramos Niembro, Gaudencio [Comision Nacional para el Ahorro de Energia -CONAE (Mexico); Morillon, David [Instituto de Ingenieria, Universidad Nacional Autonoma de Mexico (Mexico); Oskam, A. [Centro de Fisica Aplicada y Tecnologia Avanzada, Universidad Nacional Autonoma de Mexico (Mexico)

    2008-04-15

    The domestic sector consumes almost one quarter of the national electrical energy. In order to reduce in an important manner the power consumption in dwellings there is an integral alternative based on three elements: the bio-climatic design, the saving and efficient use of the energy in equipment and apparatuses, and the use of centralized air conditioning systems. Besides saving the electrical and thermal power consumption, with this scheme, comfort conditions are pretended to be reached in dwellings and, contributing at the same time, to the diminution of polluting emissions. [Spanish] El sector domestico consume casi una cuarta parte de la energia electrica nacional. Con objeto de reducir de manera importante el consumo de energia en las viviendas, se presenta una alternativa integral, basada en tres elementos: el diseno bioclimatico, el ahorro y uso eficiente de la energia en equipos y aparatos, y la utilizacion de sistemas de climatizacion centralizados. Ademas del ahorro en el consumo de energia electrica y termica, con este esquema se pretende alcanzar condiciones de confort en las viviendas y, al mismo tiempo, contribuir a la disminucion de emisiones contaminantes.

  8. Interazione onda struttura in un dispositivo di conversione dell'energia da onda a tracimazione e probematiche progettuali

    DEFF Research Database (Denmark)

    Vicinanza, D.; Margheritini, Lucia; Zanuttigh, B.

    2010-01-01

    Il presente lavoro riassume i risultati inerenti l’interazione delle onde con un innovativo cassone frangiflutti per la produzione d’energia elettrica denominato Seawave Slot-cone Generator (SSG). Il funzionamento dell’SSG é basato sul noto principio della tracimazione e della conservazione dell’...

  9. Eesti Energia lubab võlgades paberivabriku elektrita jätta / Eiris Teeveere, Päären Mardiste

    Index Scriptorium Estoniae

    Teeveere, Eiris

    2008-01-01

    Eesti Energia lülitab välja elektri Kehras asuvas Horizon Tselluloosi ja Paberivabrikus, kui võlgu tähtajaks ei maksta. Tehase sulgemine tooks kaasa 500 inimese töötuks jäämise ning reovee puhastuse lõppemise

  10. Energy consumption in the mexican iron and steel industry; Consumo de energia en la industria siderurgica mexicana

    Energy Technology Data Exchange (ETDEWEB)

    Elizalde Baltierra, A.; Garcia Pelaez, J.; Lopez Panadero, L.; Bauer Ephrussi, M.; Quintanilla Martinez, J. [Programa Universitario de Energia, UNAM, Mexico, D.F. (Mexico)

    1998-12-01

    An overview of the mexican iron and steel industry is presented, including the analysis of the sector's energy consumption by energy source (exogenous and endogenous) and by siderurgical process (basic oxygen conversion and electric arc furnace). The specific industry's energy consumption is shown, by both kind of enterprise (integrated and semi-integrated) and by siderurgical process (BOF and EAF). Finally, its international standing is examined in terms of overall specific energy consumption, specific coke consumption in high furnace, Siemens Martin furnace participation, and utilization degree of continuous casting. [Spanish] Se presenta un panorama actual de la industria siderurgica mexicana. Se analiza el consumo de energia en el sector por fuente de energia (exogena y endogena) y por proceso siderurgico (convertidor basico al oxigeno y horno electrico de arco). Se muestra ademas el consumo especifico de energia en la industria siderurgica por tipo de empresa (integrada y semi-integrada) y por proceso siderurgico (convertidor basico al oxigeno y horno electrico de arco). Finalmente, se situa a nivel internacional al sector, mediante comparaciones de consumo especifico de energia, consumo especifico de coque en el alto horno, participacion del horno Siemens Martin y grado de utilizacion de colada continua.

  11. Geração hidrelétrica, termelétrica e nuclear Hydroelectric, thermal and nuclear generation

    Directory of Open Access Journals (Sweden)

    Luiz Pinguelli Rosa

    2007-04-01

    Full Text Available O artigo apresenta a situação da produção de energia elétrica no Brasil e expõe os problemas para a implementação de um novo modelo no setor energético e para a inclusão de termelétricas em um grande sistema hidrelétrico. Questões ambientais são consideradas, particularmente as emissões de gás de efeito estufa. Atenta ainda para a possível construção de novos reatores nucleares no Brasil e destaca a importância da conservação energética e do uso de fontes de energia renovável.The situation of electric energy generation in Brazil is presented here, showing the problems in the implementation of the new model for the Power Sector, as well as in the inclusion of thermal plants in a very big hydroelectric system. Environment issues are considered, in particular the greenhouse gas emissions. The article pays attention to the possible construction of new nuclear reactors in Brazil. It is pointed out the importance of energy conservation and of using renewable energy sources.

  12. The PBMR electric power generation plant; La planta de generacion de energia electrica PBMR

    Energy Technology Data Exchange (ETDEWEB)

    Perez S, G.; Santacruz I, I.; Martin del Campo M, C. [FI-UNAM, 04500 Mexico D.F. (Mexico)] e-mail: gabriela_perez@engineer.com

    2003-07-01

    This work has as purpose to diffuse in a general way the technology of the one modulate reactor of pebble bed. Because our country is in developing ways, the electric power demand goes in increase with that which it is presented the great challenge of satisfying this necessity, not only being in charge of the one fact per se, but also involving the environmental aspect and of security. Both factors are covered by the PBMR technology, which we approach in their basic aspects with the purpose that the public opinion knows it and was familiarized with this type of reactors that well could represent a solution for our growing electricity demand. We will treat this reactor visualizing it like part of a generation plant defining in first place to the itself reactor. We will see because that the system PBMR consists of 2 main sections: the reactor and the unit of energy conversion, highlighting that the principle of the PBMR reactor operation is based on the thermodynamic Brayton cycle cooled by helium and that, in turn, it transmits the energy in form of heat toward a gas turbine. In what concerns to the fuel, it peculiar design due to its spherical geometry is described, aspect that make to this reactor different from the traditional ones that use fuel rods. In fact in the fuel spheres of the PBMR it is where it resides great part of it inherent security since each particle of fuel, consistent in uranium dioxide, is lined one with coal and silicon carbide those which form an impenetrable barrier containing to the fuel and those radioactive products that result of the nuclear reactions. Such particles are encapsulated in graphite to form the sphere or 'pebble', of here born the name of this innovative technology. (Author)

  13. Electrical energy saving in motors and frequency variators; Ahorro de energia electrica en motores y variadores de frecuencia

    Energy Technology Data Exchange (ETDEWEB)

    Garcia Neri, Roger [Comision Federal de Electricidad (CFE) (Mexico)

    2005-07-01

    The necessity of saving energy is urgent and undeniable. We must already begin with the rational use of energy. Which is obtaining the maximum benefit of the consumed energy and of the necessary facilities for its generation, transmission and use. Guaranteeing at the same time an operation free of interferences or interruptions for the users. The electricity in alternating current does not allow its storage, reason why it is necessary to generate and distribute it at the precise moment when it is required. This forces to determine the proportions of the generation facilities, to be able to feed the periods of maximum demand called {sup p}eaks{sup .} It is this very point where the problem of the inappropriate use of the electrical energy starts. The energy waste is self-evident during the periods of low demand because of the low efficiency of the sub-utilized facilities. Electrical motors of the induction type use approximately more than 60% of the energy in the industry. If we use high efficiency motors instead of standard motors, a better advantage of the energy demanded from Comision Federal de Electricidad (CFE) is obtained. [Spanish] Es impostergable e innegable la necesidad de ahorrar energia. Tenemos que empezar ya con el uso racional de la energia: Obtener el maximo beneficio de la energia consumida y de las instalaciones necesarias para su generacion, transmision y utilizacion. Garantizando a los usuarios un funcionamiento sin interferencias o interrupciones. La electricidad en corriente alterna no permite su almacenamiento, por lo que es necesario generarla y distribuirla en el momento preciso en que es requerida. Esto obliga a dimensionar las instalaciones de generacion, para poder alimentar los periodos de maxima demanda llamados pico. Desde esta parte inicia el problema de la mala utilizacion de la energia electrica. Ya que en los periodos de baja demanda, las instalaciones se encuentran subutilizadas y si su eficiencia es muy baja, el desperdicio de

  14. Language and the nuclear arms debate: Nukespeak today

    Energy Technology Data Exchange (ETDEWEB)

    1985-01-01

    This book presents papers on the political, cultural and ethical aspects of nuclear weapons. Topics considered include language and ideology, the pragmatics of speeches against the peace movement in Britain, the rhetoric of national defense in the US, pro-nuclear arguments, nuclear deterrence, the media's coverage of anti-nuclear demonstrations, news reports, an analysis of the television film The Day After, nuclear disarmament, an analysis of anti-nuclear humor, psychological models, and sociological models.

  15. Nuclear Chemistry.

    Science.gov (United States)

    Chemical and Engineering News, 1979

    1979-01-01

    Provides a brief review of the latest developments in nuclear chemistry. Nuclear research today is directed toward increased activity in radiopharmaceuticals and formation of new isotopes by high-energy, heavy-ion collisions. (Author/BB)

  16. Nuclear Scans

    Science.gov (United States)

    Nuclear scans use radioactive substances to see structures and functions inside your body. They use a special ... images. Most scans take 20 to 45 minutes. Nuclear scans can help doctors diagnose many conditions, including ...

  17. Technical progress of nuclear energy: economic and environmental prospects

    Energy Technology Data Exchange (ETDEWEB)

    Naudet, G.

    1994-12-31

    This document deals with three different aspects of the nuclear energy: first the operating and economic performances of nuclear power plants in the world, the French nuclear competitiveness. Then, the technical and economic perspectives about reactors and fuels cycle and the advantages towards atmospheric pollution are discussed to favour a new worldwide nuclear development. (TEC). 8 refs., 4 figs., 6 tabs.

  18. 10 CFR 1.18 - Advisory Committee on Nuclear Waste.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 1 2010-01-01 2010-01-01 false Advisory Committee on Nuclear Waste. 1.18 Section 1.18... Panels, Boards, and Committees § 1.18 Advisory Committee on Nuclear Waste. The Advisory Committee on Nuclear Waste (ACNW) provides advice to the Commission on all aspects of nuclear waste management,...

  19. Nuclear physics at GANIL. A compilation 1994-1995

    Energy Technology Data Exchange (ETDEWEB)

    Bex, M.; Galin, J. [eds.

    1996-09-01

    Different aspects of heavy ion reactions have been investigated at GANIL. Recent results on nuclear fragmentation and nuclear reaction kinetics are presented. 67 items are indexed and abstracted separately for INIS database. (K.A.).

  20. Sensor óptico de temperatura baseado no processo de conversão ascendente de energia em vidros fluorofosfatos dopados com Er3+

    OpenAIRE

    2016-01-01

    O processo de conversão ascendente de energia (infravermelho ao visível) é amplamente estudado em materiais dopados com íons terras raras trivalentes (TR3+) devido as várias possibilidades de aplicações tecnológicas. Tal processo consiste na emissão de fótons de maior energia (usualmente no visível) mediante excitação com fótons de menor energia (infravermelho) via mecanismo de absorção de dois fótons e/ou transferência de energia entre os íons TR3+. Entre os materiais estudados destacam-se v...

  1. Energia Avastuskeskus : Tallinna Elektrijaama restaureerimine = Energy Discovery Centre : restoration of Tallinn Power Plant / Pelle-Sten Viiburg, Margit Argus, Margit Aule

    Index Scriptorium Estoniae

    Viiburg, Pelle-Sten

    2015-01-01

    Energia Avastuskeskus endises Tallinna Elektrijaama hoones Põhja pst 29, valminud 2014. Arhitektid Sander Aas, Margit Aule, Pelle-Sten Viiburg (KAOS Arhitektid), sisearhitekt Margit Argus (KAOS Arhitektid), ekspositsiooni kujundus Margit Argus ja Margit Aule. 2014. aasta Kultuurkapitali Arhitektuuripreemia kandidaat

  2. Análise e evolução da tarifa social de energia elétrica no Brasil, 1985/2002.

    OpenAIRE

    Mauricio Lopes Tavares

    2004-01-01

    Esse estudo teve como objetivo descrever de forma sistemática a evolução da política de preços da Tarifa Social de energia elétrica no período 1985/2002, de forma que fosse possível sua análise, superando as análises fragmentadas até então realizadas. A Tarifa Social consiste em um programa implementado pelo Ministério de Minas e Energia (MME), de barateamento do preço da energia elétrica para consumidores residenciais de energia elétrica, especialmente para famílias de baixa renda. A impleme...

  3. Uma abordagem sobre a energia eólica como alternativa de ensino de tópicos de física clássica

    OpenAIRE

    Picolo,Ana Paula; Rühler,Alexandre J.; Rampinelli,Giuliano Arns

    2014-01-01

    Este trabalho apresenta um estudo sobre os princípios teóricos básicos envolvidos na energia eólica e sua conversão para energia elétrica. E realizada uma abordagem qualitativa e quantitativa sobre a energia eólica de forma a relacionar os conteúdos apresentados com diversos tópicos estudados em física clássica. A energia eólica representa uma área do conhecimento rica em conteúdos que podem ser usados diretamente no ensino de física, contribuindo para um ensino mais contextualizado e atraent...

  4. Renewable energy to produce electricity; Nuevas fuentes de energia para producir electricidad

    Energy Technology Data Exchange (ETDEWEB)

    Cadenas Tovar, Roberto; Lopez Rios, Serafin [Gerencia de Proyectos Geotermoelectricos de la Comision Federal de Electricidad, Morelia (Mexico)

    1996-05-01

    There are several new energy sources to produce electricity. One of them is the wind energy, which has reached huge commercialization in worldwide. There are in Mexico some zones with high speed wind, which can be used in a short term. This has been proved by the wind pilot power plant of La Venta, Oaxaca, where production costs of US 4.3 cents per kilowatt-hour (kWh) have been obtained. These costs are among the lowest in the world. By the other hand, among the main uses of solar energy, including both thermal and photovoltaic techniques, the biggest thermo-solar utility, with 350 megawatts (MW) of capacity, is remarkable. This is the plant located in the Mojave Desert, California, USA. In Mexico there is big potential, which can make an important contribution to supplies of electricity. Biomass is another important renewable source, particularly the use of solid municipal waste, the livestock and the wood waste. Finally, other alternate technique is represented by the fuel cells, though it is not properly renewable. However, considering its modular and low environmental impact characteristics, it can get a wide commercial development in the next decade. [Espanol] Existen diversas fuentes nuevas de energia para generar electricidad. Entre ellas, la energia eolica es una de las tecnologias alternas que mayor comercializacion ha alcanzado a nivel mundial. Mexico posee zonas con vientos de velocidades altas en las que su aplicacion puede ser inmediata, como lo prueba la experiencia obtenida con la central piloto de La Venta, Oaxaca, en donde se han alcanzado costos de produccion de 4.3 centavos de dolar por kilowatt-hora (kWh), de los mas bajos a nivel internacional. Por otra parte, entre las principales aplicaciones de la energia solar, en sus tecnologias termica y fotovoltaica, destaca el mayor de los aprovechamientos termosolares, con 350 megawatts de capacidad (MW), localizado en el desierto de Mojave, en California, EUA. En Mexico hay un gran potencial

  5. The alternative and renewable energy sources in Mexico; Fuentes alternativas y renovables de energia en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Urbano C, J. Antonio [Instituto Politecnico Nacional, Mexico, D. F. (Mexico); Matsumoto K, Yasuhiro; Asomoza P, Rene [Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional, Mexico, D. F. (Mexico)

    1996-12-31

    This paper presents an overview of the efforts that have been made in our Mexico in the area of Alternative and Renewable Sources of Energy, effort performed by different institutions, government agencies and private companies along the last 25 years. Older periods are not contemplated, although significant advances have existed, specifically in the area of small micro-hydraulic power plants, since the end of the past century and in solar collectors, more than 60 years ago, as the most relevant advances have been contemplated in these last two decades. The entire world energy demand is analyzed, making emphasis in our country, the efforts on the installed geothermal power plants, the flat collectors for domestic use, the solar power plants installed by some government agencies are also mentioned, as well as the strong growth in the photo-voltaic field at worldwide level as well as at domestic level (a graph is presented of the multiple applications of the photo-voltaic conversion of the solar energy at world level of which some of these are already operational in our country), including the hybrid systems (wind power photo-voltaic Diesel, the pilot biogas plants, the solar ponds efforts and the recently inaugurated wind-power plant of 1.575 MW installed at La Venta, in the Oaxaca State. [Espanol] El presente articulo, presenta una revision de los esfuerzos que se han desarrollado en nuestro Mexico, en el campo de las Fuentes Alternas y Renovables de Energia, esfuerzos realizados por diferentes instituciones, dependencias y companias a lo largo de los ultimos 25 anos. No se contemplan periodos mas antiguos, aunque han existido adelantos significativos, especificamente, en el campo de pequenas centrales microhidraulicas desde fines del siglo, y de colectores solares desde hace mas de 60 anos, ya que los mas relevantes se contemplan en estas ultimas dos decadas de recopilacion. Se analiza la demanda de energia mundial, haciendo enfasis a nuestro pais, se mencionan los

  6. Variancia intrapessoal da ingestao de energia e nutrientes em adolescentes: correcao de dados em estudos epidemiologicos

    Directory of Open Access Journals (Sweden)

    Eliseu Verly Junior

    2013-03-01

    Full Text Available OBJETIVO: Este artigo objetiva fornecer valores de componentes de variância intrapessoal da ingestão de energia e nutrientes que possibilita estimar a ingestão habitual em adolescentes, em inquéritos dietéticos quando há disponível somente um recordatório de 24 horas para cada indivíduo. Também será fornecido um exemplo de sua aplicação na correção da distribuição da ingestão de nutrientes proveniente de adolescentes de outro estudo. MÉTODOS: Foram utilizados recordatórios de 24 horas de 215 adolescentes do município de São Paulo. Os componentes de variância foram estimados utilizando o Software for Intake Distribution Estimation (PC-SIDE. Para cada nutriente foi construído um modelo, estratificado por sexo, que inclui o dia e o mês da coleta, e variáveis de ponderação. RESULTADOS: Os componentes de variância intrapessoal variaram de 0,55 para gordura mono-saturada (sexo feminino a 0,96 para o folato (sexo masculino. Entre os macronutrientes e energia foram observados valores mais elevados para o sexo masculino. No exemplo da aplicação do componente de variância, foi estimada a distribuição da ingestão de vitamina B6 com menos viés comparada à distribuição sem a correção. CONCLUSÃO: Estes dados podem ser utilizados na estimativa da ingestão habitual de energia e nutrientes e cálculo da prevalência de inadequação em adolescentes de populações semelhantes, quando há disponível somente um recordatório de 24 horas para cada indivíduo do estudo.

  7. Economizing energies in urban public transportation; Como economizar energias en el transporte publico urbano

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez Arellano, Ignacio [Universidad Autonoma del Estado de Mexico, Toluca (Mexico)

    1998-12-31

    In the transportation sector one of the questions that we should keep on asking on the subject of energy saving is: What objective should be set for reducing the energy consumption (particularly in oil derivatives). Must it be a moderate or a strong measure? In the past years this question was very much related to the oil availability that is a non-renewable resource, nevertheless, with the elapsing of time it can be said that the available oil resources are still very large, the problem is now in function of the energy prices in the mid term and this is what will take us to establish a type of policy for the reduction of the use of fuels in transportation. The purpose of this paper, is to have the support of the transportation users informing and persuading them on the need of reducing the fuel consumption rationalizing its utilization, to ensure in our cities a relatively fluid circulation, a breathable air, a better landscape and a protection to the urban sites. Although these proposals belong in a direct way to our governments, the base of their definition will be the perspectives for the country`s development, the amount of oil reserves, the international situation and the technological advances. [Espanol] En el sector de los transportes una de las preguntas que nos deberiamos seguir haciendo, sobre el tema de ahorro de energia es que objetivo debera fijarse para reducir los consumos de energia (en particular de los derivados del petroleo) debe ser una medida fuerte o moderada. En anos pasados esta pregunta estaba muy relacionada con la disponibilidad del petroleo que es un recurso no renovable, sin embargo con el transcurso del tiempo se puede decir que los recursos disponibles de petroleo son aun muy grandes, el problema ahora esta en funcion de los precios de la energia en el mediano plazo, y es esto lo que nos llevara a fijar un tipo de politica para la reduccion de combustibles en los transportes. El proposito de este trabajo es contar con el apoyo de los

  8. Nuclear weapons, nuclear effects, nuclear war

    Energy Technology Data Exchange (ETDEWEB)

    Bing, G.F.

    1991-08-20

    This paper provides a brief and mostly non-technical description of the militarily important features of nuclear weapons, of the physical phenomena associated with individual explosions, and of the expected or possible results of the use of many weapons in a nuclear war. Most emphasis is on the effects of so-called ``strategic exchanges.``

  9. JPRS Report Nuclear Developments

    Science.gov (United States)

    2016-03-24

    The state of Mutually Assured tionals and produced by oppressed Black labour . South Destruction (M A D) in which the two superpowers are Africa is a...privatization of nuclear plants; criticized some aspects of the management of her predecessors, Admiral "To fulfill these objectives we need resources and per...not the cycle is rather complex to manage . The Brazilian know how long the commission will maintain its present effort is oriented in this direction

  10. Nuclear structure

    CERN Document Server

    Nazarewicz, W

    1999-01-01

    Current developments in nuclear structure are discussed from a theoretical perspective. The studies of the nuclear many-body system provide us with invaluable information about the nature of the nuclear interaction, nucleonic correlations at various energy-distance scales, and the modes of the nucleonic matter.

  11. Nuclear Ambitions

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    China will begin to build the world’s first third-generation nuclear power plant at the Sanmen Nuclear Power Project in Sanmen City, coastal Zhejiang Province, in March 2009, accord-ing to the State Nuclear Power Technology Corp.

  12. Master Training in Radiological Protection Facilities Radioactive and Nuclear; Formacion de Master en Proteccion Radiologica en Instalaciones Radiactivas y Nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Verdu, G.; Mayo, P.; Campayo, J. M.

    2011-07-01

    The master includes general aspects of radiation protection in nuclear facilities. also an advanced module to acquire a high level training highlights as nuclear decommissioning, shielding calculation using advanced codes, particle accelerators, international law, etc.

  13. Avaliação da correção da energia pelo balanço de nitrogênio em alimentos para frangos de corte

    Directory of Open Access Journals (Sweden)

    R.C. Andrade

    2016-04-01

    Full Text Available Com o objetivo de determinar valores de energia metabolizável aparente e de energia metabolizável aparente corrigida pelo balanço de nitrogênio de alimentos para frangos de corte, bem como avaliar os efeitos da correção da energia sobre seu desempenho, foram conduzidos dois experimentos: I determinação da energia do milho, do farelo de soja, da farinha de carne e ossos, da farinha de vísceras e da farinha de penas, pelo método de coleta total de excretas, utilizando-se 450 pintos de corte com um dia de idade, distribuídos em delineamento inteiramente ao acaso, sendo seis tratamentos e cinco repetições; II desempenho de 960 frangos de corte, distribuídos ao acaso, em cinco tratamentos e seis repetições. As aves que receberam os tratamentos A (matriz energética de acordo com Rostagno et al. (2011 e E (energia sem correção com ajuste pela idade apresentaram melhor desempenho, e as aves do tratamento E tiveram melhor conversão alimentar. Portanto, formulações com energia sem correção pelo balanço de nitrogênio e ajustadas pela idade são viáveis tanto sob o ponto de vista zootécnico, quanto econômico.

  14. Energy saving in the management of the BIMBO group distribution fleet; Ahorro de energia en la operacion de la flotilla de distribucion del grupo BIMBO

    Energy Technology Data Exchange (ETDEWEB)

    BIMBO Mexico

    2005-07-01

    In this work BIMBO demonstrates that in order to save energy it is necessary to invest in equipment, parts, research and people. This is why they got involved in the task of developing the projects of fuel cells participating with universities, associations, Secretaria de Energia, Comision Nacional de Ahorro de Energia (National Commission for Energy Saving) (CONAE) and the National Council for Science and Tecnologia (CONACYT), through financial supports with projects of mechanisms of clean development (Kyoto Protocol). For doing it they had to prove different types of fuels: biodiesel, hydrogen, alcohol and hybrids; for them to determine the most profitable and practical thus reducing the energy consumption. With the saving of fuels and lubricants in our vehicles, a greater yield in the company is obtained. [Spanish] En este trabajo BIMBO demuestra que para ahorrar energia hay que invertir en equipo, partes, investigacion y gente. Es por eso que se dieron a la tarea de desarrollar los proyectos de celdas de combustible, participando con universidades, asociaciones, la Secretaria de Energia, la Comision Nacional para el Ahorro de Energia (CONAE) y el Consejo Nacional para la Ciencia y Tecnologia (CONACYT), a traves de apoyos financieros con proyectos de mecanismos de desarrollo limpio (protocolo de Kyoto). Para ello tuvieron que probar diferentes tipos de combustibles: biodiesel, hidrogeno, alcohol e hibridos, para determinar los mas rentables y practicos y asi reducir el consumo de energia; con el ahorro de combustibles y lubricantes en nuestros vehiculos, logrando una mayor rentabilidad en la empresa.

  15. Project of renewable energy for agriculture; Proyecto de energia renovable para la agricultura

    Energy Technology Data Exchange (ETDEWEB)

    Montufar Avilez, Octavio [FIRCO (Mexico)

    2005-07-01

    The document presents a general design of the hydraulic system, a hydraulic design of cattle ranch and a hydraulic design by dripping. It also discusses the components of the energy project, which are: institutional fortification, promotion and diffusion, market development (studies), specifications and certification, investments, technical support and direction of the project. The objective of this project is to diminish ignorance in the sector, to reduce the investment costs and to obtain a long term-sustainable effect. [Spanish] En este documento se describe un diseno general del sistema hidraulico, un diseno hidraulico de ganaderia, un diseno hidraulico por goteo y los componentes del proyecto de energia que son: fortalecimiento institucional, promocion y difusion, desarrollo del mercado (estudios), especificaciones y certificacion, inversiones, asistencia tecnica y direccion del proyecto. El objetivo de este proyecto es minimizar el desconocimiento en el sector, reducir los costos de inversion y que el efecto sea sostenible a largo plazo.

  16. Estudo da dispersão de poluentes, aplicado a um parque de energia das ondas

    OpenAIRE

    2009-01-01

    Este trabalho resultou da minha colaboração na Martifer Energy Systems no âmbito do projecto FLOW. Ao longo deste projecto foi necessário a compreensão da dinâmica da região de instalação de um dispositivo para extracção da energia das ondas, com especial importância para o regime de correntes. Para tal foi implementado o modelo numérico oceanográfico ROMS AGRIF e que foi utilizado para o estudo de diversos parâmetros, como temperatura e a salinidade. Um estudo de movimento de flutua...

  17. Carbon Bonds and the saving of energy; Bonos de carbono y el ahorro de energia

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez Ramirez, Alejandro [NovaEnergia (Mexico)

    2005-07-01

    This document deals with the development of the carbon bond project, the energy saving and the entry into force of the Kyoto Protocol at a world-wide level. In this project Mexico opts for a development model in which the economic growth brakes ties with the discharge of greenhouse effect gases and in which the progress does not mean more damages to our planet. [Spanish] Este documento trata sobre el desarrollo del proyecto de bonos de carbono, ahorro de energia y la entrada en vigor del Protocolo de Kyoto a nivel mundial, en el cual Mexico opta por un modelo de desarrollo en el que el crecimiento economico esta desvinculado de la emision de gases de efecto invernadero y en donde el progreso no signifique mas danos a nuestro planeta.

  18. Requerimentos de energia e nutrientes da população brasileira

    Directory of Open Access Journals (Sweden)

    Ignez Salas Martins

    1979-09-01

    Full Text Available Foram estimados os requerimentos de energia, proteínas, vitamina A, B1, B2, C, D, B12, ácido fólico e dos minerais ferro e cálcio da população brasileira. Foi utilizada a metodologia recomendada nos relatórios técnicos dos Comitês de Peritos FAO/OMS. Partindo-se da pressuposição de que, até 19 anos de idade, o indivíduo tem um potencial de desenvolvimento a ser atingido, as recomendações de energia foram estabelecidas tomando-se como referência o percentil 97 da população. Os requerimentos dos adultos foram estimados para o homem-tipo e mulher-tipo representativos da população brasileira do percentil 50. As recomendações de proteínas e dos demais nutrientes foram calculadas para atender as necessidades de 95% da população.The requirements for energy, proteins, vitamins - A, B1, B2, C, D, B12 - Folie acid, and iron and calcium were estimated and for this purpose the method recommended by the FAO/OMS committees was used. Based on the presupposition that an individual achieves a development potential by the age of 19, energy requirements were established using as references the 97th percentile of the population. Adult requirements were estimated for the typical-man and typical-woman, representative of the 50th percentile of the Brazilian population. The protein requirements and those of the other nutrients were calculated to meet the needs of the 95th percentile of the population.

  19. Energy saving in the sugar cane agroindustry; Ahorro de energia en la agroindustria azucarera canera

    Energy Technology Data Exchange (ETDEWEB)

    Zedillo Ponce de Leon, Luis [Grupo de paises Latinoamericanos y del Caribe exportadores de azucar (Mexico)

    1996-07-01

    The traditional sugar mill is inefficient from the energy point of view. Most of the sugar mills were designed to use all the available bagasse, due to the risk of spontaneous ignition and environmental pollution. Consequently, the steam generators, the turbines and other components were designed to work with low efficiencies. Each ton of sugar produced generates a power potential equivalent to four to six oil barrels (bagasse and residues). That is to say, a sugar mill is capable of producing 500 ton/day of sugar, equivalent to an oil well of 2000 to 3000 barrels/day and one thermoelectric power plant of 15,000 kW. Under this context an analysis is made of the sugar mills in Latin America and the Caribbean as one of the ways of increasing their efficiency and obtain great energy savings. As far as steam generation the appropriate use of energy is dictated by the boilers' efficiency. [Spanish] El ingenio azucarero tradicional es ineficiente desde el punto de vista energetico. La mayoria de los ingenios azucareros se disenaron para usar todo el bagazo disponible, debido al riesgo de ignicion espontanea y contaminacion. En consecuencia, los generadores de vapor, las turbinas y demas componentes fueron disenados para trabajar con bajas eficiencias. Cada tonelada de azucar producida genera una potencialidad energetica equivalente de cuatro a seis barriles de petroleo (bagazo y residuos). Es decir, un ingenio capaz de producir 500 ton/dia de azucar equivalente a un pozo de petroleo de 2000 a 3000 barriles/dia y una termoelectrica de 15000 kW. Bajo este contexto se hace un analisis del ingenio azucarero en Latinoamerica y el Caribe como una de las vias para incrementar su eficiencia y lograr grandes ahorros en la energia. En cuanto a generacion de vapor se refiere, el buen uso de la energia viene expresado por la eficiencia de las calderas.

  20. Nuclear Forensic Materials and Methods

    Science.gov (United States)

    Hutcheon, I. D.; Grant, P. M.; Moody, K. J.

    A short history and treatment of the various aspects of nuclear forensic analysis is followed by a discussion of the most common chemical procedures, including applications of tracers, radioisotopic generators, and sample chronometry. Analytic methodology discussed includes sample preparation, radiation detection, various forms of microscopy, and mass-spectrometric techniques. The chapter concludes with methods for the production and treatment of special nuclear materials and with a description of several actual case studies conducted at Livermore.

  1. Environmental restoration and waste management: An introduction. Student edition; Restauracion ambiental y administracion de residuos nucleares: Introduccion; Edicion estudiantil

    Energy Technology Data Exchange (ETDEWEB)

    1993-12-31

    For more than 40 years, the United States has produced nuclear weapons. These production activities generated both radioactive and hazardous waste and often contaminated the environment. For many years, the public was unaware of the problem and unable to do anything about it. All of this has changed. In response to recent public outcry, the former Secretary of Energy, Retired Admiral James D. Watkins, established the Office of Environmental Restoration and Waste Management (EM) in November 1989. The creation of EM was the first step toward correcting contamination problems from the past 40 years In this booklet, we at DOE, through the efforts of the students at Oak Hills High School of Cincinnati, Ohio, will introduce you to EM and encourage your involvement in this major program within the Department of Energy. [Espanol] Durante mas de 40 anos, los Estados Unidos fabricaron armamentos nucleares. Esta produccion genero residuos radiactivos y peligrosos y, en muchos casos, contaminaron el medio ambiente. Durante mucho tiempo, el publico norteamericano no tenia conocimiento de este problema y no pudo hacer nada para solucionarlo. Todo esto ha cambiado. Respondiendo a crecientes protestas publicas, el ex Secretario de Energia Almirante James D. Watkins, establecio en noviembre de 1989 la Subsecretaria de Administracion Ambiental. La creacion de esta Subsecretaria fue el primer paso que dio el Departamento de Energia para corregir los problemas de contaminacion ambiental de los ultimos 40 anos. En esta publicacion, los que trabajamos en el Departamento de Energia con la ayuda de los estudiantes de la Escuela Secundaria de Oak Hills, Cincinnati, Ohio, te introduciermos a la administracion ambiental y alentamos tu participacion en este programa de fundamental importancia en el Departamento de Energia.

  2. Economic risks of the capacity expansion of electric power generation: impact of the nuclear energy; Riesgos economicos de la expansion de la capacidad de generacion de energia electrica: impacto de la energia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Nieva G, R. [Instituto de Investigaciones Electricas, Av. Reforma 113, Col. Palmira, 62490 Cuernavaca, Morelos (Mexico)

    2009-07-01

    Uncertainty and risks are inherent to the electric systems planning. The long period of construction that is characteristic of the electric sector works, as well as the long useful life of the generation assets and electric power transmission, they force to plan the expansion of the electric systems along horizons from 10 to 25 years. In periods so long of time it is impossible to predict with certainty the elements of the environment that could influence in the taking of decisions, like they are: the growth and the distribution of the electric power demand, the readiness and fuel prices; the investment costs of the technological options of generation and transmission, as well as the duration of the construction of future projects of new capacity addition. All expansion plan that will be propose, will be exposed to the uncertainty of the environment, gives place to risks or undesirable consequences. The nature of the risks, the strategies to delimit them and the outlines to assign them between the different interested parts and the diverse economic agents, depend in great measure of the legal and normative mark of the sector. In this work these topics are approached inside the reference mark of the Mexican public service of electric power. (Author)

  3. Radiological and nuclear safety aspects in the fabrication of 1.8% enriched U O{sub 2} fuel rods for the RA-8 critical facility; Aspectos de seguridad radiologica y nuclear en la fabricacion de barras combustibles, con U O{sub 2} enriquecido al 1.8%, para la facilidad critica RA-8

    Energy Technology Data Exchange (ETDEWEB)

    Cardenas, Hugo; Becarra, Fabian; Herrero, Jorge; Luna, Manuel; Perez, Aldo [Comision Nacional de Energia Atomica, (Argentina). Centro Atomico Constituyentes

    1997-10-01

    The neutronic behavioral study of the fuel for the future nuclear reactor CAREM required to mount critical facility with 1.8% enriched U O{sub 2} fuel rods. The present work describes the various operation and production processes, the safety and radioprotection systems, the administrative procedures and the associated radiological controls. Also, the results obtained in the area and personal monitoring and waste generation are detailed. (author). 10 refs., 4 figs., 1 tab.

  4. Energia Solar

    Directory of Open Access Journals (Sweden)

    Paulo Henrique Dias de Borba

    2011-07-01

    Full Text Available Este projeto trata da implantação de células fotovoltaicas na forma de postes independentes na área externa da escola Oswaldo Cruz em Sinop- MT, mais especificamente no estacionamento do local, e também a implantação de placas solares nas guaritas e nos estacionamentos cobertos, tornando-os semi-sustentáveis.

  5. INVESTIGAÇÃO EXPERIMENTAL DA GERAÇÃO DE ENERGIA ELÉTRICA SOLAR FOTOVOLTÁICA

    Directory of Open Access Journals (Sweden)

    Antonio Luiz P. S. Campos

    2010-09-01

    Full Text Available Os painéis solares fotovoltaicos são dispositivos desenvolvidos para a geração de energia elétrica. Este trabalho aborda conceitos envolvidos na fabricação e funcionamento desses dispositivos tais como: histórico da energia solar fotovoltaica, tipos de painéis solares e aplicação de painéis solares em sistemas isolados. Foi feito um estudo de eficiência de geração elétrica de um painel solar existente no Campus Natal – Zona Norte do IFRN. Nesse estudo, foram levadas em consideração a incidência solar e a hora do dia. Por fim, são apresentadas conclusões sobre o estudo desenvolvido.

  6. Energia eólica, geração de empregos e desenvolvimento sustentável

    OpenAIRE

    Moana Simas; Sergio Pacca

    2013-01-01

    A energia eólica no Brasil passou por um período de lento crescimento, porém, os projetos contratados nos últimos três anos deverão quintuplicar a capacidade instalada. É a tecnologia limpa que mais tem crescido na última década, trazendo benefícios ambientais e sociais para diversos países. Nosso trabalho buscou quantificar a geração de empregos diretos e indiretos pela energia eólica no país. Até 2020, serão gerados 195 mil empregos, e 70% desses são diretos, a maioria na construção civil, ...

  7. Densità di energia di deformazione locale e resistenza a fatica di giunti saldati di geometria complessa

    Directory of Open Access Journals (Sweden)

    P. Lazzarin

    2008-01-01

    Full Text Available Un recente criterio basato sul valore medio della densità di energia di deformazione (SED inun volume di controllo è applicato a diverse serie di dati sperimentali tratti dalla letteratura, relativi a giuntisaldati di geometria complessa realizzati in acciaio. Il volume di controllo è rappresentato da un settore circolare di raggio pari a 0.28 mm, centrato sul piede o sulla radice dei cordoni di saldatura. Entrambe le regioni sono modellate come intagli V non raccordati con differenti angoli di apertura. La densità di energia di deformazione viene valutata direttamente da modelli agli elementi finiti tridimensionali. I dati sperimentali, riconvertiti in termini energetici, si posizionano all’interno di una banda di dispersionerecentemente proposta in letteratura. La banda sintetizzava più di 650 dati sperimentali relativi a giunti saldati con cordone d’angolo, con rotture innescate indifferentemente al piede o alla radice dei cordonidi saldatura.

  8. Níveis de energia líquida e ractopamina na qualidade da carne suína

    OpenAIRE

    Amin, Melissa; Kiefer, Charles; Feijó,Gelson Luís Dias; Gonçalves,Liliane Maria Piano; Souza,Karina Márcia Ribeiro de; Rodrigues,Gabriela Puhl

    2014-01-01

    Realizou-se este estudo com o objetivo de avaliar qualitativamente a carne de suínos alimentados com dietas contendo diferentes níveis de energia líquida e suplementadas com 10ppm de ractopamina. Foram utilizados 100 suínos, machos castrados, de alto potencial genético, com peso médio inicial de 73,62 ± 4,76kg e peso médio final de 97,31 ± 1,12kg. Os animais foram distribuidos em delineamento experimental de blocos ao acaso em esquema fatorial 5x2 (cinco níveis de energia líquida: 2.300; 2.42...

  9. Nuclear physics and particle therapy

    Science.gov (United States)

    Battistoni, G.

    2016-05-01

    The use of charged particles and nuclei in cancer therapy is one of the most successful cases of application of nuclear physics to medicine. The physical advantages in terms of precision and selectivity, combined with the biological properties of densely ionizing radiation, make charged particle approach an elective choice in a number of cases. Hadron therapy is in continuous development and nuclear physicists can give important contributions to this discipline. In this work some of the relevant aspects in nuclear physics will be reviewed, summarizing the most important directions of research and development.

  10. Nuclear physics and particle therapy

    Directory of Open Access Journals (Sweden)

    Battistoni G.

    2016-01-01

    Full Text Available The use of charged particles and nuclei in cancer therapy is one of the most successful cases of application of nuclear physics to medicine. The physical advantages in terms of precision and selectivity, combined with the biological properties of densely ionizing radiation, make charged particle approach an elective choice in a number of cases. Hadron therapy is in continuous development and nuclear physicists can give important contributions to this discipline. In this work some of the relevant aspects in nuclear physics will be reviewed, summarizing the most important directions of research and development.

  11. Nuclear hormone receptors in podocytes

    Directory of Open Access Journals (Sweden)

    Khurana Simran

    2012-09-01

    Full Text Available Abstract Nuclear receptors are a family of ligand-activated, DNA sequence-specific transcription factors that regulate various aspects of animal development, cell proliferation, differentiation, and homeostasis. The physiological roles of nuclear receptors and their ligands have been intensively studied in cancer and metabolic syndrome. However, their role in kidney diseases is still evolving, despite their ligands being used clinically to treat renal diseases for decades. This review will discuss the progress of our understanding of the role of nuclear receptors and their ligands in kidney physiology with emphasis on their roles in treating glomerular disorders and podocyte injury repair responses.

  12. Actions done by SAGARPA to foster renewable energies; Acciones realizadas por la SAGARPA para el fomento de las energias renovables

    Energy Technology Data Exchange (ETDEWEB)

    Diez de Sollano Elcoro, Rodrigo [Fideicomiso de riesgo compartido, Mexico (Mexico)

    2007-06-15

    This presentation is mainly focused on all the projects carried out in order to boost renewable energies. Such projects have not only good results for the environmental sphere but also for the economic one. In the first part, there are found the general targets, which are going to foster the use of these sort of energies. Then, there are shown different kinds of photovoltaic systems. The implementation of these systems have a double target: to improve both activities: stock breeding and agriculture, and to foster the use of renewable energy. Next, there are mentioned the project investors. Similarly, there are described some of the components that are part of such projects along with their corresponding results. Finally, it is given a succinctly explanation about the conclusions as well as the future plans. [Spanish] Esta presentacion principalmente se enfoca en todos los proyectos que se han realizado para el fomento de las energias renovables, teniendo un impacto no solo ambiental sino tambien economico. En la primera parte, se encuentran los objetivos generales que se tienen para fomentar el uso de este tipo de energia. Enseguida, se muestran los diferentes sistemas basados en el uso de energia renovable. La implementacion de estos sistemas tiene un doble objetivo: mejorar de alguna manera la actividad de la ganaderia o de la agricultura, y fomentar el uso de energias renovables. Enseguida, se mencionan los inversionistas que participaron en la realizacion de los proyectos; asimismo, se describen algunos de los elementos, que forman parte de los proyectos, acompanados de sus respectivos resultados obtenidos. Finalmente, se da una breve explicacion de las conclusiones a las que se llegaron, asi como de los planes a futuro.

  13. See, millest Parts Eesti Energia börsileviimise puhul ei räägi / Sulev Vedler

    Index Scriptorium Estoniae

    Vedler, Sulev, 1970-

    2010-01-01

    Eesti Energia börsileviimise ettevalmistamisega on seotud sadakond inimest - pankurid, advokaadid, juristid jne., börsileviimine läheb maksma sadu miljoneid kroone, erastamise kasuks käib jõuline PR-töö. Samas on vähe räägitud alternatiivsetest võimalustest ja börsileviimisega kaasnevatest riskidest. Alternatiivsest kavast, et rahasüsti Eesti Energiale teeb erainvestorite asemel Eesti riik

  14. Didáctica da química : a energia na química : I

    OpenAIRE

    Pereira, Duarte Costa

    1991-01-01

    Formação - Professores Programa apresentado pelo professor Duarte da Costa Pereira, sobre o conceito de Energia na Química, com destaque para a descrição estrutural da Química. Disciplina “Didáctica da Física e da Química“, do Curso de Profissionalização em Exercício.

  15. Price models of electrical energy, via stochastic processes; Modelos de precios de energia electrica, via procesos estocasticos

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez Ramos, Hugo

    2008-12-15

    The electrical energy prices own very particular characteristics that make them different from the prices of any good which are immersed under the fluctuation of the laws of supply and demand. The present work proposes a revision and modification of the model for the prices of electrical energy based on stochastic processes, developed in 2002 by M.T. Barlow. Our model satisfactorily explains the dynamics of the prices, having as an example the case of the energy market of Alberta, CA. The proposed model is based on the power transformation of Yeo-Johnson in 2000, which does not have dominion restrictions. Also, it is assumed that the energy price depends on the demand, which is modeled as a process of Ornstein-Uhlenbeck. The proposed model was applied to real data, obtaining corresponding estimations of the interest parameters, as well as their validation. Also simulation results are shown to determine the empirical distribution of the estimators of maximum credibility of the parameters. [Spanish] Los precios de energia electrica poseen caracteristicas muy particulares que los hacen diferentes a los precios de cualquier bien que estan inmersos bajo la fluctuacion de las leyes de la oferta y la demanda. El presente trabajo propone una revision y modificacion del modelo para los precios de energia electrica basado en procesos estocasticos, desarrollado en 2002 por M. T. Barlow. Nuestro modelo explica satisfactoriamente la dinamica de los precios, teniendo como ejemplo el caso del mercado de energia de Alberta, Ca. El modelo propuesto esta basado en la transformacion potencia de Yeo-Johnson en 2000, la cual no tiene restricciones de dominio. Tambien, se asume que el precio de la energia depende de la demanda, la cual es modelada como un proceso de Ornstein-Uhlenbeck. El modelo propuesto se aplico a datos reales, obteniendo estimaciones correspondientes de los parametros de interes, asi como su validacion. Tambien se muestran resultados de simulacion para determinar la

  16. First discussion for fostering the photovoltaic energy in Mexico; Primer coloquio para el fomento de la energia fotovoltaica en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-06-15

    The varied spheres (political, environmental, economic, scientific and social) day by day are looking for the key issues, which are going to make them to preserve or disappear either in the present or in the future. Therefore, it was carried out the first conversation in the State of Zacatecas, Mexico. Here there were shown different advances related to the renewable energies by those spheres. Generally speaking, it was in this event where there were gather together private and government organs in order to present every issue related to the use and to the promotion of the renewable energies. By these means, it was probed that the renewable energies are: the current market, the groundbreaking technology, the best option friendly-environment, the panacea for the society and for the improvement of the economy of many countries both developing countries and developed countries. The renewable energy topic is seen from different point of views. [Spanish] Las diferentes esferas que rigen el dia a dia; es decir, la politica, el medio ambiente, la economia, las ciencias y la sociedad, siempre estan en busca de cuestiones que las hagan crecer y evolucionar para asi seguir ocupando un espacio no solo en el presente sino tambien en el futuro. En esta ocasion fue en el primer coloquio, realizado en el Estado de Zacatecas, Mexico, donde dichas esferas se reunieron con el fin de mostrar sus diversos avances acerca de las energias fotovoltaicas. En otras palabras, fue en este coloquio donde se reunieron organos privados y gubernamentales con el fin de mostrar todo lo relacionado con el uso y la promocion de las energias renovables. Comprobando que las energias renovables son tanto: el mercado de hoy, la tecnologia de punta, la mejor opcion ambiental, la panacea para la sociedad y para la mejora de la economia de muchos paises en vias de desarrollo y de primer mundo. En estas ponencias no solo se habla de las energias renovables desde un aspecto cientifico, sino tambien financiero

  17. Renewable energies. 25 years of UNAM in Temixco; Energias renovables. 25 anos de la UNAM en Temixco

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2010-07-01

    At the Universidad Nacional Autonoma de Mexico (UNAM), the research in renewable energy began since the decade of 70's. In 1985 the Laboratory of Solar Energy (LES) of the Institute for Research in Materials in Temixco, Morelos was inaugurated, and in 1996 this became the Energy Research Center (CIE) of the UNAM. Currently, CIE is the only research center of the UNAM devoted mainly to the study and development of applications of renewable energies in Mexico. In its 25 years of existence, the LES-CIE has shown to be a university entity with a high academic performance: both in the scientific and technological production, as in the formation of high quality human resources, its outreach activities and more recently with the linkage. This commemorative book for the 25 years was made with the intention of leaving constancy of the origins and evolution of what today is done in this University Research Center. [Spanish] En la Universidad Nacional Autonoma de Mexico (UNAM), se iniciaron las investigaciones en energias renovables desde la decada de los anos 70's. En 1985 se inaugura el Laboratorio de Energia Solar (LES) del Instituto de Investigaciones en Materiales en Temixco, Morelos y en 1996 este se transforma en el Centro de Investigacion en Energia (CIE) de la UNAM. Actualmente, el CIE es el unico centro de investigacion de la UNAM dedicado principalmente al estudio y desarrollo de aplicaciones de las energias renovables en Mexico. En sus 25 anos de existencia, el LES-CIE ha mostrado ser una entidad universitaria con un alto rendimiento academico: tanto en la produccion cientifica y tecnologica, como en la formacion de recursos humanos de alta calidad, sus actividades de difusion y mas recientemente con la vinculacion. Este libro conmemorativo por los 25 anos se realizo con el proposito de dejar constancia de los origenes, evolucion y de lo que hoy es y se hace en este Centro Universitario de Investigacion.

  18. Cognitive Aspects of Prejudice

    Science.gov (United States)

    Tajfel, Henri

    1969-01-01

    This paper is a slightly revised version of a contribution to a symposium on the "Biosocial Aspects of Race," held in London, September, 1968; symposium was published in the "Journal of Biosocial Science," Supplement No. 1, July, 1969. (RJ)

  19. Possible public political guidelines (Chapter 7 in 'A vision of year 2030 on the use of the renewable energies in Mexico'); Posibles lineamientos de politicas publicos (Capitulo 7 en 'Una vision al 2030 de la utilizacion de las energias renovables en Mexico')

    Energy Technology Data Exchange (ETDEWEB)

    Mulas del Pozo, Pablo [Universidad Autonoma Metropolitana, Mexico, D.F. (Mexico)

    2005-08-15

    An exercise made through an approach group (expert in the subject) identified which were the main perceived obstacles for the penetration of the renewable energies in the Mexican energy sector. The perception of the group is that the perceived obstacles do not tend to be technical and that as of today, they depend more on political-legal aspects, administrative-institutional economic-financial. It is considered that the renewable energies, with some exceptions, were used mainly in a scheme of generating units of useful energy, either electricity or heat-cold or for process or environmental conditioning, are relatively small and therefore with a high dispersion in the national territory. This vision is equivalent to what it is known as distributed generation in the electrical sector. [Spanish] Un ejercicio realizado a traves de un grupo de enfoque (expertos en el tema) identifico cuales eran los principales obstaculos percibidos para la penetracion de las energias renovables en el sector energetico mexicano. La percepcion del grupo es que los obstaculos percibidos no tienden a ser tecnicos y que en el presente, estos dependen mas de aspectos politicos-legales, economicos-financieros y administrativos-institucionales. Se considera que las energias renovables, con algunas excepciones, se utilizaran principalmente en un esquema de unidades generadoras de energia util, ya sea electricidad o calor-frio para proceso o acondicionamiento ambiental, que son relativamente pequenas y por lo tanto con una alta dispersion en el territorio nacional. Esta vision es equivalente a lo que se conoce como generacion distribuida en el sector electrico.

  20. Foundational aspects of security

    DEFF Research Database (Denmark)

    Chatzikokolakis, Konstantinos; Mödersheim, Sebastian Alexander; Palamidessi, Catuscia

    2014-01-01

    This Special Issue of the Journal of Computer Security focuses on foundational aspects of security, which in recent years have helped change much of the way we think about and approach system security.......This Special Issue of the Journal of Computer Security focuses on foundational aspects of security, which in recent years have helped change much of the way we think about and approach system security....

  1. Competitive policies in the Nordic energy research and innovation area - eNERGIA : Part 2: Technology reports

    Energy Technology Data Exchange (ETDEWEB)

    Klitkou, Antje; Pedersen, Trond Einar; Scordato, Lisa; Mariussen, Aage

    2008-07-01

    This (Part 2: Technology reports) is the second report about the results from the eNERGIA project. The first report deals with the countries covered by the eNERGIA project, while the third report sums up the SWOT-analysis, the eNERGIA workshops and the case studies of good practice. A short synthesis report summarises the entire project. This second report mainly deals with selected renewable energy technologies from different perspectives. The report comprises the following nine chapters. Chapter 1 is the presentation of the selected renewable technologies (solar photovoltaic technology, wind technology, 2nd generation bio-energy technology, wave technology and hydroelectric technology) and a subsequent elaboration of the status of the technologies in the Nordic and Baltic countries. Chapter 2 gives an overview of patterns of international R&D collaboration as seen from the countries in question. Chapter 3 draws on technology specific patenting data and bibliometric data, describing the level of technology specific activity in each country. Chapter 4 and 5 describe the status of renewable energy production and renewable energy research respectively in each country. The four last chapters are relatively brief descriptions of the situation in the Nordic and Baltic countries. Chapter 6 gives an overview of the venture capital situation. Chapter 7 is about market regulations and Chapter 8 is about social concerns. Finally, Chapter 9 addresses infrastructural challenges. (Author) 77 figs., 70 tabs

  2. Energy management system. Opti-dmaX Control; Sistema de administracion de energia. Control Opti-dmaX

    Energy Technology Data Exchange (ETDEWEB)

    Automatizacion, Productividad y Calidad S.A. de C.V. Puebla (Mexico)

    2005-07-01

    The electrical energy is an essential element in the activities of the present world. Optimizing its consumption represents a competitive advantage for the companies, since the operation costs would be reduced as well as the negative impact to the environment. In billing the electrical energy the tariffs consider: the consumption, the demand, the power and the schedule of use for the medium and large companies. With the Opti-dmaX system the necessary information for the correct administration of the electrical energy consumption is obtained from the measurement in the strategic points of the installation. At the same time, the processes and services are controlled, maintaining an efficient power operation that diminishes operative costs. [Spanish] La energia electrica es un elemento indispensable en las actividades del mundo actual, y optimizar su consumo, representa una ventaja competitiva para las empresas, ya que se consigue reducir los costos de operacion y el impacto al ambiente. En la facturacion de la energia electrica las tarifas consideran: el consumo, la demanda, la potencia y el horario de uso para las medianas y grandes empresas. Con el sistema Opti-dmaX se obtiene la informacion necesaria para la correcta administracion del consumo de energia electrica a partir de la medicion en los puntos estrategicos de la instalacion. A su vez, se controlan los procesos y servicios, manteniendo una operacion energetica eficiente que minimiza los costos operativos.

  3. Análise da comercialização de energia elétrica cogerada pelo setor sucroalcooleiro no estado de São Paulo

    Directory of Open Access Journals (Sweden)

    Marilda da Penha Teixeira Nagaoka

    2003-01-01

    Full Text Available O Brasil viveu, em 2001, uma crise de oferta de energia elétrica sem precedentes que coincidiu com o processo de reestruturação do setor elétrico brasileiro e possibilitou aos autoprodutores de energia elétrica,como o setor sucroalcooleiro, comercializarem o excedente de energia, obtidos pelo processo de cogeração, que apesar do elevado potencial de comercialização, não está sendo devidamente aproveitado. Este trabalho teve por objetivo caracterizar o mercado de energia elétrica cogerada e analisar os obstáculos à comercialização da energia cogerada, à luz da existência dos custos de transação e econômicos, enfrentados pelo setor sucroalcooleiro e distribuidoras. Para a coleta de informações, foram realizadas entrevistas semi-estruturadas com o responsável pela área de cogeração das usinas e distribuidora de energia, que consistiam em perguntas pré-determinadas que foram lidas na mesma ordem e da mesma maneira para todos os entrevistados para assegurar a comparabilidade dos resultados. As entrevistas foram gravadas, transcritas e examinadas por meio da análise de conteúdo. Os resultados indicaram que poderiam ser estabelecidos contratos de longo prazo, mas os custos de transação e econômicos entre os agentes podem estar superando os benefícios da comercialização de energia elétrica cogerada, fazendo os agentes atuarem preferencialmente no mercado spot

  4. Extreme meteorological events and nuclear facilities safety; Fenomenos meteorologicos extremos e a seguranca das instalacoes nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Almeida, Patricia Moco Princisval

    2006-07-01

    An External Event is an event that originates outside the site and whose effects on the Nuclear Power Plants (NPP) should be considered. Such events could be of natural or human induced origin and should be identified and selected for design purposes during the site evaluation process. This work shows that the subtropics and mid latitudes of South America east of the Andes Mountain Range have been recognized as prone to severe convective weather. In Brazil, the events of tornadoes are becoming frequent; however there is no institutionalized procedure for a systematic documentation of severe weather. The information is done only for some scientists and by the newspapers. Like strong wind can affect the structural integrity of buildings or the pressure differential can affect the ventilation system, our concern is the safety of NPP and for this purpose the recommendations of International Atomic Energy Agency, Nuclear Regulatory Commission and Comissao Nacional de Energia Nuclear are showed and also a data base of tornadoes in Brazil is done. (author)

  5. Dense plasmas research in the Chilean Nuclear Energy Commission: past, present and future

    Energy Technology Data Exchange (ETDEWEB)

    Soto, Leopoldo; Silva, Patricio; Moreno, Jose; Zambra, Marcelo; Sylvester, Gustavo; Esaulov, Andrey; Altamirano, Luis [Comision Chilena de Energia Nuclear (CCHEN), Santiago (Chile)]. E-mail: lsoto@cchen.cl

    2002-03-01

    A review of the dense transient plasmas researches, developed in the Chilean Nuclear Energy Commission, is presented. A brief summary of the researches done in collaboration with the Pontificia Universidad Catolica de Chile, between 1993 to 1997, is shown. In addition, the program 'Plasma Physics in Small Devices', developed at the Comision Chilena de Energia Nuclear since 1999 is delineated. The diagnostics development and results obtained during three experiments using small pinch devices are shown: a capillary discharge; a Z pinch driven by a small generator; and a low energy plasma focus. The experiments were complemented by magnetohydrodynamics numerical calculations, in order to assist the design and physical interpretation of the experimental data. The diagnostics techniques used in these experiments include current and voltage monitors, multi pinhole camera, plasma image using a ICCD camera gated from 3 to 20 ns, holographic interferometry, and vacuum ultraviolet spectroscopy. Recently, the pulse power generator SPEED 2, a medium energy and large current device (187 kJ, 4 MA, 300 kV, 400 ns, dI/dt{approx}10{sup 13} A/s), has been transferred from the Duesseldorf University to the Comision Chilena de Energia Nuclear. Future experiments, and the perspectives of using this device, are also discussed. (author)

  6. Tendencies and perspectives of the residential energy in Mexico; 1. ed.; Tendencias y perspectivas de la energia residencial en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Sheinbaum Pardo, Claudia [Instituto de Ingenieria, Mexico, D. F. (Mexico)

    1996-12-31

    production of electricity. In the fifth chapter the saving potential is presented and the conservation policies and energy efficiency of the of the OCED countries. The second part exposes the tendencies in the use of the residential energy in Mexico from 1980 to 1990 and analyzes and evaluates the possible applications of the experience of the OECD countries to the case of our country. This part is initiated in the sixth chapter and in it the tendencies of the use of residential energy in Mexico at aggregated level from 1970 to 1990 are studied and for end uses from 1980 to 1990, in this chapter is also included a calculation of the elasticities demand-price and demand income, and an aggregated analysis of the change indices. In the seventh chapter the associated emissions of the main polluting agents and green house gases associated to the use of residential energy in Mexico are presented. In the eighth chapter the conservation potential is analyzed and the necessary energy policies to achieve it. In the ninth chapter the conclusions and recommendations are presented.. Finally three appendices are presented: the first one shows the source of the data for the countries of the OECD, the second shows the procedure of auto regression and the third one the prices of the residential energy in Mexico and the present average and minimum wage. [Espanol] Este trabajo es un estudio comparativo del uso de la energia residencial en Mexico y nueve paises fundadores de la Organizacion para la Cooperacion y el Desarrollo Economico (OCDE). Su principal objetivo es conocer las causas de la tendencias en el uso de la energia residencial en dichos paises, sus efectos ambientales, el potencial tecnico de conservacion y las posibles politicas de ahorro y eficiencias energeticas. El trabajo se divide en dos partes: La primera parte presenta el analisis de las tendencias observadas durante el periodo de 1973 a 1990 asi como las perspectivas del uso de la energia residencial en Estados Unidos

  7. Nuclear Astrophysics

    Science.gov (United States)

    Drago, Alessandro

    2005-04-01

    The activity of the Italian nuclear physicists community in the field of Nuclear Astrophysics is reported. The researches here described have been performed within the project "Fisica teorica del nucleo e dei sistemi a multi corpi", supported by the Ministero dell'Istruzione, dell'Università e della Ricerca.

  8. An introduction to serious nuclear accident chemistry

    OpenAIRE

    Mark Russell St. John Foreman

    2015-01-01

    A review of the chemistry occurring inside a nuclear power plant during a serious reactor accident is presented. This includes some aspects of the behavior of nuclear fuel, its cladding, cesium and iodine. This review concentrates on the chemistry of an accident in a water-cooled reactor loaded with uranium dioxide or mixed metal oxide fuel.

  9. Nuclear astrophysics of light nuclei

    DEFF Research Database (Denmark)

    Fynbo, Hans Otto Uldall

    2013-01-01

    A review of nuclear astrophysics of light nuclei using radioactive beams or techniques developed for radioactive beams is given. We discuss Big Bang nucleosynthesis, with special focus on the lithium problem, aspects of neutrino-physics, helium-burning and finally selected examples of studies...

  10. Nuclear stress test

    Science.gov (United States)

    ... Persantine stress test; Thallium stress test; Stress test - nuclear; Adenosine stress test; Regadenoson stress test; CAD - nuclear stress; Coronary artery disease - nuclear stress; Angina - nuclear ...

  11. Structural integrity aspects of reactor safety

    Indian Academy of Sciences (India)

    K K Vaze

    2013-10-01

    The overall goal of nuclear power plant safety is to protect individuals, society and the environment from undue radiological hazard so that nuclear power production does not significantly add to the health risks to which individuals and society are already exposed. This paper addresses the safety principles followed during the design phase of life cycle of a nuclear power plant. The principles followed such as safety classification, design rules based on failure modes, detailed stress analysis, stress categorization, consideration of design basis events, failure probability, flaw tolerance, leak-before-break are described. Engineering structures always contain flaws, albeit of very small size. Fatigue and fracture are the two important failure modes affected by flaws. Thus flaw tolerance becomes very important. This is assessed by applying fracture mechanics principles. The R6 procedure, which is used for evaluation of structures containing flaws, has been incorporated in the software BARC-R6. Improvements by way of shell-nozzle junction pull-out, adoption of hot wire GTAW with narrow gap technique have been brought out. Post Fukushima incidence, resistance to seismic loading and containment design have assumed great importance. The paper describes these aspects in detail. Regulatory aspects of seismic design regarding siting, Seismic margin assessment, base isolation, retrofitting are the aspects covered under seismic design. Under the action of seismic loading, the piping in a nuclear power plant piping is vulnerable to a phenomenon called ratcheting. The process of seismic margin assessment and consideration of ratchetting has been backed up by a large experimental data. The experiments carried out on structures and piping components form a part of the paper.

  12. Greenhouse effect gases (GEI) by energy consumption; Gases efecto invernadero (GEI) por consumo de energia

    Energy Technology Data Exchange (ETDEWEB)

    Munoz Ledo C, Ramon; Bazan N, Gerardo [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2003-07-01

    carburos organicos volatiles que no son metano (NMVOC, por sus siglas en ingles) y son productos secundarios y nocivos que se obtienen de los procesos que convierten los combustibles en energia (combustion). Las principales fuentes de GEI son: fuentes fijas (industrias, residencias, comercios, servicios publicos y transformacion de energia, como la produccion de electricidad); fuentes moviles (que incluyen todo tipo de transporte que use combustible). Los combustibles que, por su volumen y eficiencia, generan mas emisiones de GEI son el petroleo crudo, gas natural y biomasa solida (lena - bagazo de cana). Cualquier esfuerzo por reducir estas emisiones es muy importante y notable si incide en estos combustibles.

  13. Nuclear questions

    Energy Technology Data Exchange (ETDEWEB)

    Durrani, M. [Physics World (United Kingdom)

    2006-01-01

    The future of nuclear power has returned to centre stage. Freezing weather on both sides of the Atlantic and last month's climate-change talks in Montreal have helped to put energy and the future of nuclear power right back on the political agenda. The issue is particularly pressing for those countries where existing nuclear stations are reaching the end of their lives. In the UK, prime minister Tony Blair has commissioned a review of energy, with a view to deciding later this year whether to build new nuclear power plants. The review comes just four years after the Labour government published a White Paper on energy that said the country should keep the nuclear option open but did not follow this up with any concrete action. In Germany, new chancellor and former physicist Angela Merkel is a fan of nuclear energy and had said she would extend the lifetime of its nuclear plants beyond 2020, when they are due to close. However, that commitment has had to be abandoned, at least for the time being, following negotiations with her left-wing coalition partners. The arguments in favour of nuclear power will be familiar to all physicists - it emits almost no carbon dioxide and can play a vital role in maintaining a diverse energy supply. To over-rely on imported supplies of oil and gas can leave a nation hostage to fortune. The arguments against are equally easy to list - the public is scared of nuclear power, it generates dangerous waste with potentially huge clean-up costs, and it is not necessarily cheap. Nuclear plants could also be a target for terrorist attacks. Given political will, many of these problems can be resolved, or at least tackled. China certainly sees the benefits of nuclear power, as does Finland, which is building a new 1600 MW station - the world's most powerful - that is set to open in 2009. Physicists, of course, are essential to such developments. They play a vital role in ensuring the safety of such plants and developing new types of

  14. Jüri Käo: Eesti Energia jääb isegi börsil poliitikute kontrolli alla / Jüri Käo ; intervjueerinud Sulev Vedler

    Index Scriptorium Estoniae

    Käo, Jüri, 1965-

    2010-01-01

    Eesti Energia nõukogu esimees ei poolda mitte Eesti Energia suuremahulist börsile viimist, vaid vähemusaktsiate börsil noteerimist. Tema sõnul on IPO suurim oht, et sellest saab poliitilise valimisvõitluse objekt ning unustatakse, et energeetikas tehakse otsuseid 30 ja 50 aasta perspektiivis

  15. Liability for the nuclear risk; Aansprakelijkheid voor het nucleaire risico

    Energy Technology Data Exchange (ETDEWEB)

    Faure, M. [ed.] [Rijksuniversiteit Limburg, Maastricht (Netherlands); Govaerts, P.; Malbrain, C.; Veuchelen, L. [Centre d`Etude de l`Energie Nucleaire, Mol (Belgium); Spriet, B. [Katholieke Univ. Leuven (Belgium). Inst. voor Strafrecht; Heldeweg, M.; Hertogs, M.; Van Maanen, G.; De Roos, T.; Seerden, R. [Maastrichts Europees Instituut voor Transnationaal Rechtswetenschappelijk Onderzoek METRO, Rijksuniversiteit Limburg, Maastricht (Netherlands)

    1993-12-31

    Results of a cooperative research project on the juridical aspects of nuclear risk (criminal, civil and administrative aspects), according to the Belgian and Dutch laws, are presented. In this multi-disciplinary project also attention is paid to the economic impacts and positive-scientific aspects of the nuclear risk regarding radioactive waste problems and nuclear accidents. The liability for and the decision-making regarding the site selection of nuclear power plants is dealt with as well. 9 figs., 23 tabs., 198 refs.

  16. Nuclear Physics

    CERN Document Server

    Savage, Martin J

    2016-01-01

    Lattice QCD is making good progress toward calculating the structure and properties of light nuclei and the forces between nucleons. These calculations will ultimately refine the nuclear forces, particularly in the three- and four-nucleon sector and the short-distance interactions of nucleons with electroweak currents, and allow for a reduction of uncertainties in nuclear many-body calculations of nuclei and their reactions. After highlighting their importance, particularly to the Nuclear Physics and High-Energy Physics experimental programs, I discuss the progress that has been made toward achieving these goals and the challenges that remain.

  17. Nuclear Reactors and Technology

    Energy Technology Data Exchange (ETDEWEB)

    Cason, D.L.; Hicks, S.C. [eds.

    1992-01-01

    This publication Nuclear Reactors and Technology (NRT) announces on a monthly basis the current worldwide information available from the open literature on nuclear reactors and technology, including all aspects of power reactors, components and accessories, fuel elements, control systems, and materials. This publication contains the abstracts of DOE reports, journal articles, conference papers, patents, theses, and monographs added to the Energy Science and Technology Database during the past month. Also included are US information obtained through acquisition programs or interagency agreements and international information obtained through the International Energy Agency`s Energy Technology Data Exchange or government-to-government agreements. The digests in NRT and other citations to information on nuclear reactors back to 1948 are available for online searching and retrieval on the Energy Science and Technology Database and Nuclear Science Abstracts (NSA) database. Current information, added daily to the Energy Science and Technology Database, is available to DOE and its contractors through the DOE Integrated Technical Information System. Customized profiles can be developed to provide current information to meet each user`s needs.

  18. Proceedings of the 7 Annual conference of the Mexican association for the energy economy. The energy sector in Mexico: challenges and solutions. [Selected papers]; 7. Conferencia anual de la asociacion mexicana para la economia energetica. El sector energia en Mexico: retos y soluciones

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    The Mexican Association for the Energy Economy (AMEE) had its VII annual conference, The energy sector in Mexico: challenges and solutions, in October, 2004. Some of the expounded topics are: technical and environmental aspects of the combined cycle power stations; analysis of the generation of electric power across biogas from sanitary landfills in Mexico; cogeneration in large power plants; methodologies for the calculation of relative efficiency: description and application of natural gas distributors in Latin American and others. [Spanish] La Asociacion Mexicana para la Economia Energetica A. C. (AMEE), llevo acabo su VII conferencia anual El sector energia en Mexico: retos y soluciones, en octubre del 2004. Algunos de los temas tratados son: Aspectos tecnicos y medioambientales de las centrales de ciclo combinado con gasificacion integrada; Analisis de la generacion de energia electrica a traves de biogas procedente de rellenos sanitarios en Mexico; Cogeneracion en grandes centrales de proceso; Metodologias para el calculo de eficiencia relativa: descripcion y aplicacion para distribuidores de gas natural en Latinoamerica y otros.

  19. Diagnostic aspects of gonorrhoea

    NARCIS (Netherlands)

    E. Stolz (Ernst)

    1974-01-01

    textabstractIn 1971 an investigation into the epidemiological, clinical, bacteriological and therapeutic aspects of gonorrhoea was started in collaboration with the Bacteriological Laboratory of the University Hospital/Medical Faculty Rotterdam. Jn the framework of this investigation, the data were

  20. [Psychosocial aspects of halitosis

    NARCIS (Netherlands)

    Jongh, A. de; Baat, C. de; Horstman, M.

    2012-01-01

    Using a representative sample from the Dutch population, some psychosocial aspects of halitosis were examined. The results of the survey showed that almost 90% of the Dutch population aged 16 years and older were regularly faced with halitosis. Forty percent reported to be exposed to someone with ha

  1. Aspects of Marine Ecology.

    Science.gov (United States)

    Awkerman, Gary L.

    This publication is designed for use in standard science curricula to develop oceanologic manifestations of certain science topics. Included are teacher guides, student activities, and demonstrations to impart ocean science understanding, specifically, aspects of marine ecology, to high school students. The course objectives include the ability of…

  2. Macroeconomic aspects of dollarization

    OpenAIRE

    Kolář, Ladislav

    2009-01-01

    The dissertation deals mainly with explanation of the term "de jure dollarization" and confronts the dollarization regime with others. The core of the whole dissertation is to outline the factors which indicate fulfillment of dollarization and the positives or negatives that it brings. It slightly refers to the regional monetary integration in several regions and discovers mutual aspects with the dollarization.

  3. Quantum Chromodynamics: Computational Aspects

    CERN Document Server

    Schaefer, Thomas

    2016-01-01

    We present a brief introduction to QCD, the QCD phase diagram, and non-equilibrium phenomena in QCD. We emphasize aspects of the theory that can be addressed using computational methods, in particular euclidean path integral Monte Carlo, fluid dynamics, kinetic theory, classical field theory and holographic duality.

  4. Nuclear spectroscopic studies

    Energy Technology Data Exchange (ETDEWEB)

    Bingham, C.R.; Guidry, M.W.; Riedinger, L.L.; Sorensen, S.P.

    1993-02-08

    The Nuclear Physics group at the University of Tennessee, Knoxville is involved in several aspects of heavy-ion physics including both nuclear structure and reaction mechanisms. While our main emphasis is on experimental problems involving heavy-ion accelerators, we have maintained a strong collaboration with several theorists in order to best pursue the physics of our measurements. During the last year we have led several experiments at the Holifield Heavy Ion Research Facility and participated in others at Argonne National Laboratory. Also, we continue to be very active in the collaboration to study ultra-relativistic heavy ion physics utilizing the SPS accelerator at CERN in Geneva, Switzerland and in a RHIC detector R D project. Our experimental work is in four broad areas: (1) the structure of nuclei at high angular momentum, (2) heavy-ion induced transfer reactions, (3) the structure of nuclei far from stability, and (4) ultra-relativistic heavy-ion physics. The results of studies in these particular areas will be described in this document in sections IIA, IIB, IIC, and IID, respectively. Areas (1), (3), and (4) concentrate on the structure of nuclear matter in extreme conditions of rotational motion, imbalance of neutrons and protons, or very high temperature and density. Area (2) pursues the transfer of nucleons to states with high angular momentum, both to learn about their structure and to understand the transfer of particles, energy, and angular momentum in collisions between heavy ions. An important component of our program is the strong emphasis on the theoretical aspects of nuclear structure and reactions.

  5. Advantage of the renewable energies in isolated zones; Aprovechamiento de las energias renovables en zonas aisladas

    Energy Technology Data Exchange (ETDEWEB)

    Mendoza Zazueta, Jose Antonio [Fideicomiso de Riesgo Compartido de la SAGARPA (Mexico)

    2007-07-15

    The present article has as objective to present the experiences obtained for more than ten years, in the development and implementation of actions that in the matter of renewable energy have been orchestrated in the Mexican field by the Secretariat of Agriculture, Animal Industry, Rural Development, Fishing, and Nutrition, trough the Shared Risk Trust Fund. The activities began in 1994; the most common applications realized are the water pumping for the drinking trough of cattle and the automation of the irrigation in small surfaces with fruit trees, vegetables, forages and the operation of greenhouses. [Spanish] El presente articulo tiene como objetivo presentar las experiencias obtenidas durante mas de diez anos, en el desarrollo e implementacion de acciones que en materia de energia renovable se han instrumentado en el campo mexicano por la the Secretaria de Agricultura, Ganaderia, Desarrollo Rural Pesca y Alimentacion, a traves del Fideicomiso de Riesgo Compartido. Las actividades se iniciaron en 1994, las aplicaciones mas comunes realizadas son el bombeo de agua para el abrevadero de ganado y la tecnificacion del riego en pequenas superficies con frutales, hortalizas, forrajes y la operacion de invernaderos.

  6. Energy and the exercise of the power; Energia y ejercicio del poder

    Energy Technology Data Exchange (ETDEWEB)

    Quiros Corradi, Alberto [Maraven S.A. (Venezuela)

    2007-07-15

    In different periods of the history, the central spot of the power game, played among nations, has been occupied by certain specific topics for a while. Among the occupants there are found: ground, food, religion, treasure and trade. Despite the fact that his arrival was unnoticed, there have been already 20 years since the energy -more specifically by the crude oil- has become the new occupant of such spot. Although, this occupant is not going to be the last one, it still has a long way to cover on the spot of the worldwide forces. [Spanish] En diferentes periodos de la historia, ciertos temas especificos han llegado a ocupar durante algun tiempo una posicion focal en el juego de poder entre naciones, grupos o individuos. Entre esos temas estan la tierra, los alimentos, la religion, el tesoro y el comercio. En los ultimos 20 anos, y de manera inadvertida en un principio, la energia -mas especificamente el petroleo- ha pasado a ocupar este papel central. Si bien no se puede esperar que lo retenga para siempre, en los proximos anos seguira en el centro de la interaccion de las fuerzas mundiales.

  7. Project of energy saving in compressed air; Proyecto de ahorro de energia en aire comprimido

    Energy Technology Data Exchange (ETDEWEB)

    Automatizacion, Productividad y Calidad S.A. de C.V. Puebla, (Mexico)

    2005-07-01

    The objective of this project is to reduce the operation costs by means of the energy saving through the use of the compressed air system. For this purpose the solenoid valves controlled per time and the manually acted valves of sphere must be replaced by pneumatic purges that remove from the system the condensed humidity without discharging air and which act automatically when the water reaches the level of unloading in its deposit. The pressure level is the reduction of the operation rank of pressure in the compressors, satisfying the operation requirements of the process equipment. [Spanish] El objetivo de este proyecto es reducir el costo de operacion mediante el ahorro de energia en la utilizacion del sistema de aire comprimido. Para ello se tienen que remplazar las valvulas solenoides controladas por tiempo y valvulas de esfera actuadas manualmente por purgas neumaticas que remueven del sistema la humedad condensada sin descargar aire y que actuan en forma automatica al alcanzar el agua el nivel de descarga en su deposito. El nivel de presion es la reduccion del rango de operacion de presion de los compresores, satisfaciendo los requerimientos de operacion de los equipos de proceso.

  8. Municipal hydraulic planning for energy saving; Planeacion hidraulica municipal para el ahorro de energia

    Energy Technology Data Exchange (ETDEWEB)

    Garcia Garcia, Enrique [PTF S.C. Consultores, Leon, Gto. (Mexico)

    1999-07-01

    The efficient handling of the economic and natural resources of the municipalities, is nowadays so much complex, that it requires a formal planning. In the public service of potable water supply, two fundamental approaches are conjugated to consider: the rational use of the water resource and the efficient use of the electrical energy, for its extraction from the underground deep reservoirs. In the paper that is presented, the individual features of the previous matters are described and the positive results in a municipality of the Guanajuato's Low Lands (Bajio ), where already the dual objectives are obtained and that with a more professional municipal hydraulic planning, these will be permanent, with the inherent benefit towards the population. [Spanish] El manejo eficiente de los recursos economicos y naturales de los municipios, es hoy en dia cada vez mas complejo, que requiere una planeacion formal. En el servicio publico de abastecimiento de agua potable, se conjugan dos enfoques primordiales a considerar: el uso racional del recurso agua y la utilizacion eficiente de la energia electrica, para su extraccion de los acuiferos subterraneos profundos. En el trabajo que se presenta, se describen las particularidades de lo anterior y los resultados positivos en un municipio del Bajio guanajuatense, donde ya se logran los objetivos duales y que con una planeacion hidraulica municipal mas profesional, estos seran permanentes, con el beneficio inherente hacia la poblacion.

  9. Nuclear power plant maintainability.

    Science.gov (United States)

    Seminara, J L; Parsons, S O

    1982-09-01

    In the mid-1970s a general awareness of human factors engineering deficiencies associated with power plant control rooms took shape and the Electric Power Research Institute (EPRI) awarded the Lockheed Corporation a contract to review the human factors aspects of five representative operational control rooms and their associated simulators. This investigation revealed a host of major and minor deficiencies that assumed unforeseen dimensions in the post- Three Mile Island accident period. In the course of examining operational problems (Seminara et al, 1976) and subsequently the methods for overcoming such problems (Seminara et al, 1979, 1980) indications surfaced that power plants were far from ideal in meeting the needs of maintenance personnel. Accordingly, EPRI sponsored an investigation of the human factors aspects of power plant maintainability (Seminara, 1981). This paper provides an overview of the maintainability problems and issues encountered in the course of reviewing five nuclear power plants.

  10. Nuclear Disarmament.

    Science.gov (United States)

    Johnson, Christopher

    1982-01-01

    Material about nuclear disarmament and the arms race should be included in secondary school curricula. Teachers can present this technical, controversial, and frightening material in a balanced and comprehensible way. Resources for instructional materials are listed. (PP)

  11. Nuclear reaction

    CERN Multimedia

    Penwarden, C

    2001-01-01

    At the European Research Organization for Nuclear Research, Nobel laureates delve into the mysteries of particle physics. But when they invited artists from across the continent to visit their site in Geneva, they wanted a new kind of experiment.

  12. Nuclear Medicine

    Science.gov (United States)

    ... here Home » Science Education » Science Topics » Nuclear Medicine SCIENCE EDUCATION SCIENCE EDUCATION Science Topics Resource Links for ... administered by inhalation, by oral ingestion, or by direct injection into an organ. The mode of tracer ...

  13. Nuclear Data

    Energy Technology Data Exchange (ETDEWEB)

    White, Morgan C. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-01-23

    PowerPoint presentation targeted for educational use. Nuclear data comes from a variety of sources and in many flavors. Understanding where the data you use comes from and what flavor it is can be essential to understand and interpret your results. This talk will discuss the nuclear data pipeline with particular emphasis on providing links to additional resources that can be used to explore the issues you will encounter.

  14. Nuclear aspects of neutrino energy reconstruction in current oscillation experiments

    Energy Technology Data Exchange (ETDEWEB)

    Leitner, Tina; Buss, Oliver; Mosel, Ulrich [Institut fuer Theoretische Physik, Universitaet Giessen (Germany); Alvarez-Ruso, Luis [Departamento de Fisica Teorica and IFIC, Universidad de Valencia - CSIC (Spain)

    2008-07-01

    There is an extensive experimental effort aiming at a precise determination of neutrino oscillation parameters. A critical quantity is the neutrino energy which can not be measured directly but has to be reconstructed from observables. A good knowledge of neutrino-nucleus interactions is thus necessary to minimize the systematic uncertainties in neutrino fluxes, backgrounds and detector responses. A reliable reconstruction has to account for in-medium modifications. We find that in particular final-state interactions inside the target nucleus modify considerably the distributions through rescattering, charge-exchange and absorption. These effects can be simulated with our coupled channel GiBUU transport model where the neutrino first interacts with a bound nucleon producing secondary particles which are then transported out of the nucleus. We consider, besides Fermi motion and Pauli blocking, full in-medium kinematics, mean-field potentials and in-medium spectral functions. In this contribution, we compare the reconstructed quantities obtained within our model to the ones obtained by the current experiments like MiniBooNE, which mostly rely on simple two-body kinematics. We then discuss how these uncertainties influence not only the cross section measurements but also the oscillation results.

  15. Topical aspects of nuclear medical diagnostics in dermatology

    Energy Technology Data Exchange (ETDEWEB)

    Wehrenberg, O.

    1985-09-09

    The diagnostic value of soft tissue and bone scintigraphy in various dermatological diseases is discussed. We received new knowledge about frequency, dimension and validity of psoriatic osteoarthropathia by using scintigraphic methods. Bone scintigraphy is more sensitive than clinical and radiological investigation and there is an earlier detection of arthropathy in psoriasis. Whole body scintigraphy using bone seeking radiopharmaceuticals has proven to be a sensitive diagnostic tool in the detection of bone and joint involvement in collagen diseases. These methods can also be of great value in the evaluation and clinical management of diseases with possible generalized or multiple bone lesions (e. g. syphilis; dermatomyositis; sarcoidosis; malignant melanoma). Since the discovery of hybridoma technique for the production of monoclonal antibodies it became apparent that this new class of immunoglobulins may represent a new useful tool in the diagnosis and in the therapy of malignant diseases. In this paper we discuss the application of murine and human monoclonal antibodies in experimental and clinical oncology.

  16. Statistical and dynamical aspects of intermediate energy nuclear collisions

    Energy Technology Data Exchange (ETDEWEB)

    Ghetti, R.

    1997-01-01

    Studies of intermediate energy heavy ion reactions have revealed that the probability of emitting n-fragments is reducible to the probability of emitting a single fragment through the binomial distribution. The resulting one-fragment probability shows a dependence on the thermal energy that is characteristic of statistical decay. Similarly, the charge distributions associated with n-fragment emission are reducible to the one-fragment charge distribution, and thermal scaling is observed. The reducibility equation for the n-fragment charge distribution contains a quantity with a value that starts from zero, at low transverse energies, and saturates at high transverse energies. This evolution may signal a transition from a coexistence phase to a vapour phase. In the search for a signal of liquid-gas phase transition, the appearance of intermittency is reconsidered. Percolation calculations, as well as data analysis, indicate that an intermittent-like signal appears from classes of events that do not coincide with the critical one. 232 refs.

  17. Recent advances in understanding nuclear size and shape.

    Science.gov (United States)

    Mukherjee, Richik N; Chen, Pan; Levy, Daniel L

    2016-04-25

    Size and shape are important aspects of nuclear structure. While normal cells maintain nuclear size within a defined range, altered nuclear size and shape are associated with a variety of diseases. It is unknown if altered nuclear morphology contributes to pathology, and answering this question requires a better understanding of the mechanisms that control nuclear size and shape. In this review, we discuss recent advances in our understanding of the mechanisms that regulate nuclear morphology, focusing on nucleocytoplasmic transport, nuclear lamins, the endoplasmic reticulum, the cell cycle, and potential links between nuclear size and size regulation of other organelles. We then discuss the functional significance of nuclear morphology in the context of early embryonic development. Looking toward the future, we review new experimental approaches that promise to provide new insights into mechanisms of nuclear size control, in particular microfluidic-based technologies, and discuss how altered nuclear morphology might impact chromatin organization and physiology of diseased cells.

  18. Calorimetria nucleare in collisioni tra ioni pesanti ad energie intermedie

    Science.gov (United States)

    Spezzi, L.

    2002-07-01

    Nel presente lavoro di tesi ci si e' occupati di uno studio sistematico di misure di temperatura ed energia di eccitazione in sistemi nucleari formati in reazioni tra ioni pesanti ad energie intermedie. La temperatura a stata misurata tramite due diversi metodi: rapporto tra le rese di isotopi che differiscono di uno stesso numero di nucleoni ( d/t-3He/4He , 3He/4He -6Li/7Li) - temperatura isotopica -, e rapporto tra le popolazioni degli stati eccitati in frammenti instabili (5Li e 6Li) che decadono in particelle leggere in coincidenza - temperatura di emissione. Le misure in esame sono state effettuate presso i Laboratori Nazionali del Sud per i sistemi 93Nb+93Nb, 93Nb+116,124Sn, 116,120Sn+116,124Sn e 116Sn+93Nb ad energie comprese tra 17 e 40 A MeV. L'apparato di rivelazione era costituito da un odoscopio ad alta granularite (96 telescopi Si (50micron)-Si(300micron)-CsI(Tl) ) e basse soglie di rivelazione, utilizzato sia per identificare risonanze in frammenti eccitati che per misure di rese di isotopi di frammenti con 2<=Z<=6, e dal multirivelatore FIASCO che, grazie alla misura contemporanea di posizione e tempo di volo dei frammenti provenienti dal proiettile (PLF - Projectile Like Fragments) e dal bersaglio (TLF - Target Like Fragment), e' stato utilizzato per misurare direttamente l'energia di eccitazione del sistema in studio. Analisi precedenti, condotte nell'ambito di varie collaborazioni, hanno messo in evidenza la possible esistenza di una transizione di fase liquido-gas del primo ordine nella materia nucleare. In tale contesto, ci siamo occupati di una verifica della curva calorica nucleare, ovvero della correlazione esistente fra temperatura ed energia di eccitazione del sistema, indagando, nel contempo, sulla sua dipendenza dalla massa del sistema che si frammenta. Si e' effettuato, inoltre, un confronto fra i due diversi metodi di misura della temperatura (temperatura isotopica e di emissione): l'andamento plateau-like della curva calorica e' stato

  19. Análise do retorno econômico com a conservação de energia : caso da Usina de Paulo Afonso IV

    OpenAIRE

    Santana, Maria José de

    2005-01-01

    O objetivo desta dissertação é o de analisar os retornos econômicos obtidos com investimentos aplicados na conservação de energia elétrica, com relevância ao que a conservação pode proporcionar às empresas, à sociedade e ao setor elétrico, além de outras vantagens agregadas com a minimização de custos, redução nos níveis de desperdício de energia e a compensação dos gastos através de retornos positivos. O estudo foi baseado no levantamento de dados do programa de conservação de energia de uma...

  20. Avaliação da eficiência do uso da energia elétrica no Perímetro Irrigado de Pirapora, MG

    OpenAIRE

    Medeiros,Salomão de S.; Soares,Antônio A.; Márcio M. Ramos; Everardo C. Mantovani; Souza,José A. A. de

    2003-01-01

    Objetivou-se, através deste trabalho, avaliar a eficiência de uso de energia elétrica no Perímetro Irrigado de Pirapora, no período de 1999 a 2000. A demanda anual de água de irrigação para o perímetro foi simulada com base no balanço de água no solo, para condições de um manejo de irrigação ideal. O índice médio anual de consumo de energia no perímetro foi determinado com base no volume de água aplicado e no consumo de energia das estações de bombeamento. Com o volume de água simulado e o ín...

  1. Economic analysis of nuclear energy

    Energy Technology Data Exchange (ETDEWEB)

    Song, Ki Dong; Lee, M. K.; Moon, K. H.; Kim, S. S.; Lim, C. Y.; Kim, H. S

    2000-12-01

    This study identified the role of nuclear energy in the following three major aspects. First of all, this study carried out cost effectiveness of nuclear as a CDM technology, which is one of means of GHG emission reduction in UNFCCC. Secondly, environmental externalities caused by air pollutants emitted by power options were estimated. The 'observed market behaviour' method and 'responses to hypothetical market' method were used to estimate objectively the environmental external costs by electric source, respectively. Finally, the role of nuclear power in securing electricity supply in a liberalized electricity market was analyzed. This study made efforts to investigate whether nuclear power generation with high investment cost could be favored in a liberalized market by using 'option value' analysis of investments.

  2. Development and implementation of a quality assurance program of physical aspects of a hybrid tomograph PET/CT Discovery ST GE in a nuclear medicine service;Desarollo e implementacion de un programa de garantia de calidad de los aspectos fisicos de un tomografo hibrido PET/CT Discovery ST GE en un servicio de medicina nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Seijas, Jugleys; Reggio, Franklyn; Campa, Raudel [Universidad Central de Venezuela, Caracas (Venezuela, Bolivarian Republic of). Postgrado de Fisica Medica

    2009-07-01

    This research was carry out due to the low presence of PET/CT projects in Venezuela in this moment, which consisted of the implementation and evaluation of a protocol for the acceptance and implementation of a hybrid tomograph PET/CT Discovery ST located in the nuclear medicine service at the Hospital de Clinicas Caracas. For this work, two references were used to provide a basic set of tests established and accepted by almost all manufacturers, such references are: NEMA 1994 PET and Spanish Protocol for Quality Control for Radiology CT. In general, we found that the smallest lesion in a functional image that this tomograph can resolve is {approx} 6mm. The spatial resolution of an anatomical image was resolved through 8 pl/cm. Likewise, this tomograph is able to produce a uniform anatomical and functional image, with very little noise and radiation scattered once the correction was done, referring to the test of co-registration accuracy of PET and CT shows that there is an excellent correspondence between the image of PET (functional) and the image of CT (anatomic), a basic parameter in a study of PET/CT. (author)

  3. L’ambientalista nucleare Alternative al cambiamento climatico

    CERN Document Server

    Gómez Cadenas, Juan José

    2012-01-01

    Che cosa emette più radioattività nell'atmosfera: una centrale nucleare o una centrale termica? Una centrale termica. Che cosa comporta maggior rischio: vivere nei pressi di una centrale nucleare o fumare una sigaretta? Fumare una sola sigaretta equivale al rischio di vivere due anni vicino a una centrale nucleare. Che cosa si fa in un'ora di punta di richiesta energetica se non soffia il vento? Si ricorre a impianti di pompaggio o centrali a gas di riserva. L'energia elettrica non può essere immagazzinata. Quanti aerogeneratori servono per sostituire una centrale nucleare? Circa duemila, dell'ultima generazione. Separati tra di loro dei cinquecento metri necessari perché siano efficienti, la fila dei mulini si estenderebbe da Barcellona a Ginevra, attraversando l'intera Francia. È un errore contrapporre tra loro le energie alternative, sarebbe molto più sensato considerarle alleate nella grande battaglia contro un Signore Oscuro ogni giorno più potente: il cambiamento climatico, che potrebbe benissimo...

  4. Valor nutricional e energia metabolizável de subprodutos do trigo utilizados para alimentação de suínos em crescimento

    Directory of Open Access Journals (Sweden)

    William Rui Wesendonck

    2013-02-01

    Full Text Available O objetivo deste trabalho foi avaliar o valor nutricional e energético de subprodutos do trigo, em dietas para suínos em crescimento, e obter equações de predição da energia metabolizável. Foram utilizados 36 suínos machos, castrados, alojados em gaiolas metabólicas individuais. Realizou-se a coleta total de fezes e urina em dois períodos de dez dias: cinco para adaptação e cinco para coleta. Utilizou-se o delineamento de blocos ao acaso, tendo-se considerado o período de coleta como bloco, com seis tratamentos e seis repetições. A dieta referência foi substituída em 30% por um dos subprodutos testados: farinheta, farelo fino, farelo de trigo, farelo grosso e farelo grosso moído; este último usado para avaliar a influência da granulometria na digestibilidade. A fibra bruta foi a variável que proporcionou a melhor estimativa da energia metabolizável. O farelo fino foi superior em energia digestível e metabolizável, em comparação ao farelo grosso moído. O farelo grosso moído apresentou os menores coeficientes de digestibilidade, e a diminuição de seu diâmetro geométrico médio não aumentou a digestibilidade dos nutrientes e da energia. Entre os subprodutos avaliados, a farinheta apresenta maior energia digestível, energia metabolizável e proteína digestível, o que mostra elevado potencial para utilização em dietas para suínos em crescimento.

  5. General Nuclear Medicine

    Science.gov (United States)

    ... Physician Resources Professions Site Index A-Z General Nuclear Medicine Nuclear medicine imaging uses small amounts of ... limitations of General Nuclear Medicine? What is General Nuclear Medicine? Nuclear medicine is a branch of medical ...

  6. Children's (Pediatric) Nuclear Medicine

    Medline Plus

    Full Text Available ... Resources Professions Site Index A-Z Children's (Pediatric) Nuclear Medicine Children’s (pediatric) nuclear medicine imaging uses small ... of Children's Nuclear Medicine? What is Children's (Pediatric) Nuclear Medicine? Nuclear medicine is a branch of medical ...

  7. Children's (Pediatric) Nuclear Medicine

    Science.gov (United States)

    ... Professions Site Index A-Z Children's (Pediatric) Nuclear Medicine Children’s (pediatric) nuclear medicine imaging uses small amounts ... Children's Nuclear Medicine? What is Children's (Pediatric) Nuclear Medicine? Nuclear medicine is a branch of medical imaging ...

  8. ROBOTIC SURGERY: BIOETHICAL ASPECTS

    Science.gov (United States)

    SIQUEIRA-BATISTA, Rodrigo; SOUZA, Camila Ribeiro; MAIA, Polyana Mendes; SIQUEIRA, Sávio Lana

    2016-01-01

    ABSTRACT Introduction: The use of robots in surgery has been increasingly common today, allowing the emergence of numerous bioethical issues in this area. Objective: To present review of the ethical aspects of robot use in surgery. Method: Search in Pubmed, SciELO and Lilacs crossing the headings "bioethics", "surgery", "ethics", "laparoscopy" and "robotic". Results: Of the citations obtained, were selected 17 articles, which were used for the preparation of the article. It contains brief presentation on robotics, its inclusion in health and bioethical aspects, and the use of robots in surgery. Conclusion: Robotic surgery is a reality today in many hospitals, which makes essential bioethical reflection on the relationship between health professionals, automata and patients. PMID:28076489

  9. Behavioural aspects of terrorism.

    Science.gov (United States)

    Leistedt, Samuel J

    2013-05-10

    Behavioural and social sciences are useful in collecting and analysing intelligence data, understanding terrorism, and developing strategies to combat terrorism. This article aims to examine the psychopathological concepts of terrorism and discusses the developing roles for behavioural scientists. A systematic review was conducted of studies investigating behavioural aspects of terrorism. These studies were identified by a systematic search of databases, textbooks, and a supplementary manual search of references. Several fundamental concepts were identified that continue to influence the motives and the majority of the behaviours of those who support or engage in this kind of specific violence. Regardless of the psychological aspects and new roles for psychiatrists, the behavioural sciences will continue to be called upon to assist in developing better methods to gather and analyse intelligence, to understand terrorism, and perhaps to stem the radicalisation process.

  10. Strategic Aspects of Hegemony

    OpenAIRE

    Robert E. Goodin; Güth, Werner; Snidal, Duncan

    2005-01-01

    Hegemony is a central feature of contemporary international politics but it remains seriously under-theorized. We draw on cooperative game theory to represent and analyze different aspects of hegemony. After developing a general conception of hegemony, we analyze the circumstances under which a Hegemon needs assistance from allies, examine when prospective allies have incentives to cooperate with or challenge Hegemon and evaluate the prospects for exploitation by Hegemon. Throughout, we conne...

  11. LNG project - contractual aspects

    Energy Technology Data Exchange (ETDEWEB)

    Goncalves, Bruno Almeida

    2008-07-01

    This paper intends to provide from the legal point of view an outline of the main challenges of a LNG project in the upstream, regulatory aspects, liquefaction, financing and midstream through a basic checklist; an overview of the contractual complexity of a LNG project; some basic discussion of particular LNG contract clauses; and a comparative analysis between the classic clauses of a Gas Transportation Agreement (GTA) through a gas pipeline and LNG logistic. (author)

  12. MARKETING MIX THEORETICAL ASPECTS

    OpenAIRE

    Margarita Išoraitė

    2016-01-01

    Aim of article is to analyze marketing mix theoretical aspects. The article discusses that marketing mix is one of the main objectives of the marketing mix elements for setting objectives and marketing budget measures. The importance of each element depends not only on the company and its activities, but also on the competition and time. All marketing elements are interrelated and should be seen in the whole of their actions. Some items may have greater importance than others; it depends main...

  13. Aspects of B physics

    Energy Technology Data Exchange (ETDEWEB)

    Gaillard, M.K.

    1987-10-14

    Various aspects of weak decays are commented on. Probing of the standard model and of phenomena beyond the standard model are discussed, followed by a theoretical view of B mesons and some experimental observations on B mesons. The point is made that any data on B decay would be interesting in that it would provide powerful new constraints in analyses of the standard model and extensions thereof. (LEW)

  14. Electrochemical kinetics theoretical aspects

    CERN Document Server

    Vetter, Klaus J

    1967-01-01

    Electrochemical Kinetics: Theoretical Aspects focuses on the processes, methodologies, reactions, and transformations in electrochemical kinetics. The book first offers information on electrochemical thermodynamics and the theory of overvoltage. Topics include equilibrium potentials, concepts and definitions, electrical double layer and electrocapillarity, and charge-transfer, diffusion, and reaction overvoltage. Crystallization overvoltage, total overvoltage, and resistance polarization are also discussed. The text then examines the methods of determining electrochemical reaction mechanisms

  15. Paradox place by nuclear sector discourse line; Lugar de paradoxos pelos caminhos discursivos do setor nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Pereira, Iona Ponce [Centro Regional de Ciencias Nucleares (CRCN), Recife, PE (Brazil)]. E-mail: iona@cnen.gov.br

    2002-07-01

    This article, taking into consideration the Critical Discourse Analysis and the French Discourse Analysis, examines the relationship between the public image and the acceptance of nuclear energy and the discourse and arguments commonly employed by the nuclear institutions, in Brazil, in favor of a widespread use of nuclear energy by the society. In doing so, the article discusses aspects such as the social memory, intertextuality and image construction and shows that the pro-nuclear arguments and the discourse produced by the institutions of the nuclear sector, in its essence, carries much of the ideas and concepts frequently utilized by the anti-nuclear entities. This fact, instead of providing a positive view, or even a correct understanding of the nuclear area, reinforces the negative image of nuclear energy witch is reflected in its public acceptance by the society. (author)

  16. Accelerators of particles and nuclear energy: the challenge of reliability; Aceleradores de partaculas y energia nuclear: el desafio de la fiabilidad

    Energy Technology Data Exchange (ETDEWEB)

    Fernandez Ramos, P.

    2011-07-01

    The use of particle accelerators for high energy industrial technology involves subjecting the reliability requirements more stringent than those that exist and become the main objective from the early stages of design.

  17. APLICAÇÃO DA ENERGIA HIDRELÉTRICA EM UMA SALA DE AULA BUSCANDO A ECONOMIA NA FORMA DO CONSUMO

    Directory of Open Access Journals (Sweden)

    Marcelo Mateus Rieger

    2011-07-01

    Full Text Available Após a revolução industrial, com o êxodo rural, houve um grande crescimento populacional urbano trazendo consigo o aumento no consumo elétrico e consequentemente necessitando de uma maior demanda de produção de energia. Em meio a essa evolução, tornou-se essencial a construção de mais fontes geradoras de energia elétrica, causando diversos impactos ambientais. Atualmente a criação de programas de conservação buscando métodos para a redução do consumo de energia, visa adotar novos estilos de vida e padrões de consumo o que vem sendo um grande desafio a todos. Segundo PUCRS (2010, p.05. um programa de conservação e uso racional de energia consiste em uma série de ações e medidas de caráter técnico, gerencial e comportamental, que visam a diminuir o consumo de energia e buscam a sustentabilidade. Neste projeto serão citadas algumas maneiras de redução de consumo de energia elétrica em uma sala de aula da escola Osvaldo Crus, sendo esta energia proveniente de usina hidrelétrica. “[...] A maior e mais potente usina hidroelétrica do mundo, é a Usina Itaipu, localizada na fronteira entre Brasil e Paraguai, ela é capaz de produzir 90000 giga watts por ano, o suficiente para alimentar a cidade de Londres por 3 anos.” ( GIGANTES DA ENGENHARIA, 2009. A conscientização de todo o corpo acadêmico do colégio Osvaldo Cruz é de fundamental importância para a realização desse projeto, desde um simples gesto como desligar as luzes quando o ambiente não estiver sendo utilizado, fechar todo o ambiente ao ligar o condicionador de ar, entre outros, sendo que isto trará melhorias e benefícios para todos, já que reduzindo o consumo de energia, indiretamente estaremos reduzindo os níveis de impactos ambientais.

  18. Altervative energy sources, principles, applications, state of the art and perspectives; Fuentes alternativas de energia, principios, aplicaciones, estado del arte y perspectivas

    Energy Technology Data Exchange (ETDEWEB)

    Saldana Flores, R; Gonzalez Galarza, R.; Ramos Berumen, C.; Agredano Diaz, J.; Arvizu Fernandex, J.L. [Instituto de Investigaciones Electricas (Mexico); Saldana Flores, R.; Gonzalez Galarza, R.; Ramos Berumen, C.; Agredano Diaz, J.; Arvizu Fernandez, J.L. [Instituto de Investigaciones Electricas (Mexico)

    1996-12-31

    All over the world, the energy availability has turned out to be one of the most important problems. The greatest majority of countries, developing as well as industrialized countries are being affected by the increasing demand of energy to satisfy their social and economic development goals and the need of complementing the conventional sources of energy with the non-conventional sources has become imperative for most of them. Beginning the last decade, it has been recognized the inevitability that in a non too far future the energy supply will suffer a transitional change from its present oil dependency towards more diversified energy combinations. This transition that involves the development of a variety of energy sources, with preference to the renewable sources, represents an important technological challenge that has to be attained in a gradual and orderly fashion. Among the new energy forms and the new technologies to obtain energy that have been considered to become a part of the energy supply in the future are the so called non-conventional sources of energy (NCSE) or alternative sources of energy, such as solar, biomass, wind power and small hydro stations. [Espanol] A nivel mundial, la disponibilidad de energia se ha convertido en uno de los problemas ms importantes. La gran mayoria de los paises, tanto en desarrollo como industrializados, se ven afectados por demandas crecientes de energia para satisfacer sus metas de desarrollo econonico y social, y la necesidad de complementar las fuentes comerciales con fuentes no convencionales se ha vuelto imperativa para la mayoria de ellos. A partir de la ultima decada, se ha reconocido como inevitable que en un futuro no muy lejano la oferta de energa debera sufrir una transicin desde su actual dependencia de los hidrocarburos hacia combinaciones energeticas mas diversificadas. Esta transicion que implica lograr el aprovechamiento de una variedad de fuentes de energia, prestando particular atencion a los

  19. Fronteiras paramétricas de eficiência para o segmento de transmissão de energia elétrica no Brasil

    OpenAIRE

    2009-01-01

    Estuda a eficiência de custo de empresas de transmissão de energia elétrica brasileiras por meio de análise por fronteira estocástica, com o objetivo de contribuir para o desenvolvimento de metodologia justa e imparcial, a ser aplicada pela Agência Nacional de Energia Elétrica - ANEEL, na regulação por incentivo da indústria de transmissão. Para isso, desenvolve metodologia de coleta e tratamento das informações de custos mensais das transmissoras, obtidas em banco de dados disponível na ANEE...

  20. Some aspects of fission and quasifission processes

    Indian Academy of Sciences (India)

    B B Back

    2015-08-01

    The discovery of nuclear fission in 1938–1939 had a profound influence on the field of nuclear physics and it brought this branch of physics into the forefront as it was recognized for having the potential for its seminal influence on modern society. Although many of the basic features of actinide fission were described in a ground-breaking paper by Bohr and Wheeler only six months after the discovery, the fission process is very complex and it has been a challenge for both experimentalists and theorists to achieve a complete and satisfactory understanding of this phenomenon. Many aspects of nuclear physics are involved in fission and it continues to be a subject of intense study even three quarters of a century after its discovery. In this talk, I will review an incomplete subset of the major milestones in fission research, and briefly discuss some of the topics that I have been involved in during my career. These include studies of vibrational resonances and fission isomers that are caused by the second minimum in the fission barrier in actinide nuclei, studies of heavy-ion-induced fission in terms of the angular distributions and the mass–angle correlations of fission fragments. Some of these studies provided evidence for the importance of the quasifission process and the attendant suppression of the complete fusion process. Finally, some of the circumstances around the establishment of large-scale nuclear research in India will be discussed.