WorldWideScience

Sample records for president criticizes power

  1. Student Body Presidents and Institutional Leaders: Navigating Power and Influence

    Science.gov (United States)

    Snyder, Robert Scott

    2018-01-01

    The purpose of this study was to understand and perceive how student leaders, and specifically student body presidents, navigated social power and used influence with institutional leaders in the higher education decision-making environment to achieve the goals and objectives of their presidencies. The foundational texts of higher education…

  2. War Powers Revisited: The President, Congress and the Gulf War

    Science.gov (United States)

    1992-04-01

    Framers and Ratifiers, as well as the discussion over the separation of powers , the decision to shift to an offensive capability through increasing the...the president in future crises. The debate over separation of powers in November was brought into focus when 56 members of Congress filed suit against...the use of American forces without prior congressional approval which, in the minds of many, is a clear violation of the separation of powers . That

  3. PACE president criticizes Baltics minority rights / Talis Saule Archdeacon

    Index Scriptorium Estoniae

    Archdeacon, Talis Saule

    2007-01-01

    Euroopa Nõukogu Parlamentaarse Assamblee president Rene van der Linden külastas Baltimaid ning kritiseeris vähemusrahvuste olukorda Eestis ja Lätis, tuues eeskujuks Leedut. Kriitikale vastavad Läti ja Eesti välisministrid

  4. Civilian Nuclear Power. A report to the President, 1962

    Energy Technology Data Exchange (ETDEWEB)

    Seaborg, Glenn T. [United States Atomic Energy Commission, Washington, DC (United States)

    1962-11-20

    This overarching report on the role of nuclear power in the U.S. economy was requested by U.S. President John F. Kennedy in March, 1962. The U.S. Atomic Energy Commission was charged with producing the report, gaining input from individuals inside and outside government, including the Department of Interior, the Federal Power Commission, and the National Academy of Sciences Committee on Natural Resources. The study was to identify the objectives, scope, and content of a nuclear power development program in light of prospective energy needs and resources. It should recommend appropriate steps to assure the proper timing of development and construction of nuclear power projects, including the construction of necessary prototypes and continued cooperation between government and industry. There should also be an evaluation of the extent to which the U.S. nuclear power program will further international objectives in the peaceful uses of atomic energy.

  5. Althingi´s Keeper: Changes in the Constitutional Powers of the President of Iceland

    Directory of Open Access Journals (Sweden)

    Björg Thorarensen

    2015-12-01

    Full Text Available The article focuses on the constitutional role of the president of Iceland when the republic was established in 1944, and the evolution of this role during the time Ólafur Ragnar Grímsson has been in office. The study shows that the creation of a republic involved hardly any changes in the constitutional role of the head of state neither in regard to executive nor legislative powers. Thus the authors reject the theory that the creation of a republic introduced a dual authority structure, consisting of Althingi and a powerful president, which characterizes semi-presidentialim. However, despite the fact that the text of the constitution, regarding the presidency, has not been changed since 1944, the political importance of the president has increased in recent years. This is mainly the result of Ólafur Ragnar Grímsson´s interpretation of the constitutional role of the president, as well as changes in public attitudes regarding democracy and the role of the president. According to this interpretation, the president acts as Althingi´s keeper who acts as a check on the majority rule of Althingi contrary to what was decided in 1944. The authors maintain that in the absence of formal constitutional changes, were the role of the presidency is better defined; the power of the president vis-à-vis the cabinet and parliament may continue to grow.

  6. How the President and Senate Affect the Balance of Power in the

    OpenAIRE

    Gisela Sin; Arthur Lupia

    2005-01-01

    Can the President or the Senate affect the balance of power in the House? We find that they can. Our answer comes from a model that links House leadership decisions to the constitutional requirement to build lawmaking coalitions with the Senate and President. Changing the ideal point of a non-House actor, while holding constant the ideal point of all House members, can alter the House’s balance of power. Power shifts because changes in the Senate or President can reshape the set of achievable...

  7. Physics for future Presidents - nuclear power, terrorism, global warming; La physique expliquee a notre futur president - Nucleaire, terrorisme, rechauffement climatique

    Energy Technology Data Exchange (ETDEWEB)

    Muller, Richard A.

    2011-04-26

    This book explains the science behind the concerns that our nation faces in the immediate future. It outlines the tools of terrorists, the dangers of nuclear power, and the reality of global warming. As citizens who will elect future presidents of the most powerful and influential countries in the world, we need to know-truly understand if Iran's nascent nuclear capability is a genuine threat to the West, if biochemical weapons are likely to be developed by terrorists, if there are viable alternatives to fossil fuels that should be nurtured and supported by the government, if nuclear power should be encouraged, and if global warming is actually happening. This book is written in everyday, nontechnical language on the science behind the concerns that our nations faces in the immediate future. This book is translated from 'Physics for Future Presidents: The Science Behind the Headlines', published by W. W. Norton and Company in August 2008. Contents: 1 - Terrorism: Nine-eleven, Terrorist nukes, The next terrorist attack, Biological terrorism; 2 - Energy: Key energy surprises, Solar Power, The end of oil; 3 - Nukes: Radioactivity and death, Radioactive decay, Nuclear weapons, Nuclear madness, Nuclear power, Nuclear waste, Controlled fusion; 4 - Space: Space and satellites, Gravity applications, Humans in space, Spying with invisible light; 5 - Global Warming: A brief history of climate, The greenhouse effect, A very likely cause, Evidence, Non-solutions, The fruit on the ground, New technologies

  8. The power of rhetoric and the rhetoric of power: Exploring a tension within the Obama presidency

    Directory of Open Access Journals (Sweden)

    Rob Kroes

    2012-03-01

    Full Text Available When Barack Obama acceded to the Presidency of the United States he held out the promise of a new beginning. As a master of political rhetoric he had spoken of a new start following the dismal years of the Bush administration. He would take America back to its inspirational creed of freedom and democracy. He augured a break with policies infringing on civil liberties and government under the law. Once in office, though, the power of rhetoric that had carried him into the White House ran into the hard reality of political rule under conditions of ongoing wars in far-away countries and the threat of terrorism, lurking at home and abroad. This chapter will explore how well President Obama managed to preserve democratic freedoms at home while fighting terrorism.

  9. Strong Presidents, Robust Democracies? Separation of Powers and Rule of Law in Latin America

    Directory of Open Access Journals (Sweden)

    Marcus Melo

    2009-06-01

    Full Text Available The received wisdom on Latin America in the 1980s and 1990s was that countries where presidents enjoyed strong constitutional powers and where multiparty coalitions prevailed would be doomed to instability and institutional crises, while countries boasting weak presidents and strong parties were expected to consolidate democratic rule. After almost two decades, it is now widely acknowledged that this prediction failed. Recent re-conceptualizations of presidentalism have partly corrected the flaws in the established diagnosis but left unexplained the role of checks and balances and of the rule of law in containing presidential abuse and guaranteeing governability. The paper argues that the key to solving the paradox of strong presidents and robust democracies is that democratic stability in Latin American countries is a function of an extended system of checks and balances. These are ultimately generated by power fragmentation at the time of the constitutional choices over their institutional design and political competition sustaining their effective functioning.

  10. How the Senate and the President Affect the Timing of Power-sharing Rule Changes in the US House

    OpenAIRE

    Gisela Sin; Arthur Lupia

    2013-01-01

    A new model and related empirical work explain how the Senate and President affect the timing of power-sharing rule changes in the US House. We argue that shifts in the Senate's or President's preferences (e.g., a new majority party in the Senate; a new president) reshape House members' expectations about which legislative outcomes are achievable. Reshaped expectations, in turn, can alter House members' perceptions of the consequences of reallocating power among themselves. We prove that such...

  11. Critical Foundations: Protecting America's Infrastructures. The Report of the President's Commission on Critical Infrastructure Protection

    National Research Council Canada - National Science Library

    1997-01-01

    There is no doubt that our critical infrastructures are the best in the world-largely the result of the tremendous efficiency and global reach made possible by incorporation of our rapidly advancing...

  12. Emergency Power For Critical Items

    Science.gov (United States)

    Young, William R.

    2009-07-01

    Natural disasters, such as hurricanes, floods, tornados, and tsunami, are becoming a greater problem as climate change impacts our environment. Disasters, whether natural or man made, destroy lives, homes, businesses and the natural environment. Such disasters can happen with little or no warning, leaving hundreds or even thousands of people without medical services, potable water, sanitation, communications and electrical services for up to several weeks. In our modern world, the need for electricity has become a necessity. Modern building codes and new disaster resistant building practices are reducing the damage to homes and businesses. Emergency gasoline and diesel generators are becoming common place for power outages. Generators need fuel, which may not be available after a disaster, but Photovoltaic (solar-electric) systems supply electricity without petroleum fuel as they are powered by the sun. Photovoltaic (PV) systems can provide electrical power for a home or business. PV systems can operate as utility interactive or stand-alone with battery backup. Determining your critical load items and sizing the photovoltaic system for those critical items, guarantees their operation in a disaster.

  13. Will Trump harness the power of the US presidency to re-energise nuclear?

    International Nuclear Information System (INIS)

    Shepherd, John

    2016-01-01

    Four days after the March 2011 accident at Japan's Fukushima-Daiichi nuclear power plant, before the world knew the enormity of what had happened, a US property tycoon said in an interview on national television: ''I am strongly in favour of nuclear energy.'' In the aftermath of that catastrophe, as nuclear experts, regulators and governments were rushing to understand what had happened, the businessman did not waiver in his opinion. His words did not grab international headlines in the dark days after Fukushima. However, as of 8 November 2016, the world is now compelled to hang on the tycoon's every word - because he is now the US president-elect, Donald Trump.

  14. Will Trump harness the power of the US presidency to re-energise nuclear?

    Energy Technology Data Exchange (ETDEWEB)

    Shepherd, John [nuclear 24, Redditch (United Kingdom)

    2016-12-15

    Four days after the March 2011 accident at Japan's Fukushima-Daiichi nuclear power plant, before the world knew the enormity of what had happened, a US property tycoon said in an interview on national television: ''I am strongly in favour of nuclear energy.'' In the aftermath of that catastrophe, as nuclear experts, regulators and governments were rushing to understand what had happened, the businessman did not waiver in his opinion. His words did not grab international headlines in the dark days after Fukushima. However, as of 8 November 2016, the world is now compelled to hang on the tycoon's every word - because he is now the US president-elect, Donald Trump.

  15. South Africa’s BRICS Presidency: Regional Power at the Helm of a Global Governance Forum

    Directory of Open Access Journals (Sweden)

    Marina V Larionova

    2015-12-01

    Full Text Available The paper presents the analysis of South Africa’s BRICS Presidency which formally started with the summit in Durban on March 15-17, 2013 and finished in June 2014 with the BRICS leaders’ Fortaleza meeting. To assess the Presidency effectiveness the author applies “supply-demand” model fine-tuned to achieve a balance of external conditions and national priorities of the country chairing informal summitry institutions, such as BRICS, G20 or G7/8. This analytical paradigm allows reveal to what extent the Presidency has managed to ensure: 1 a high level of response to the key global governance challenges in the summit agenda and decisions; 2 a balance between internal demand (domestic priorities and external demand (other members’ interests and global governance challenges in the Presidency priorities; 3 maximal use of the institution’s capabilities. Conformity of the role chosen by the Presidency (organizer, mediator, political leader, national representative to the combination of external and internal conditions is also considered as it is a major factor of the presidency success. Content analysis, comparative analysis and functional approach were used in the study. The primary sources of the research included the BRICS documents, national documents of the member states, the leaders’ addresses. The study reveals that the major factors of the South African BRICS presidency success were commitment to implementation of the Durban decisions and action plan as well as the will to utilize the BRICS capabilities for African countries development and South African regional leadership. In the former case the foundation of success was reinforced the chair’ choice of the organizer role, whereas in the latter a combination of the political leader and national representative roles proved to be the most productive for the presidency.

  16. Minimum critical power ratio control device for nuclear power plants

    International Nuclear Information System (INIS)

    Kurosawa, Tsuneo.

    1991-01-01

    Reactor core flowrate is determined by comparing a minimum critical power ratio calculated based on the status amount of a nuclear power plant and a control value for the minimum critical power ratio that depends on the reactor core flowrate. Further, the minimum critical power ratio and a control value for the minimum critical power ratio that depends on the reactor thermal power are compared to set a reactor thermal power converted to a reactor core flowrate. Deviation between the thus determined reactor core flowrate and the present reactor core flowrate is calculated. When the obtained deviation is lower than a rated value, a reactor core flowrate set signal is generated to a reactor flowrate control means, to control the reactor power by a recycling flowrate control system of the reactor. On the other hand, when the deviation exceeds the determined value, the reactor core flowrate set signal is converted into a reactor thermal power, to control the position of control rods and control the reactor power. Then, monitor and control can be conducted safely and automatically without depending on operator's individual ability over the entire operation range corresponding to load following operation. (N.H.)

  17. Prisons, Pipelines, and the President: Developing Critical Math Literacy through Participatory Action Research

    Directory of Open Access Journals (Sweden)

    Clarence L. Terry

    2010-05-01

    Full Text Available Academic success, and the economic well-being it usually affords, is closely tied to math achievement. Key national indicators reveal decades of underperformance of African American males in mathematics. Scholars argue that the schooling experiences of Black males are highly-racialized, are often bereft of significance, and result in academic and social marginalization. The author reports findings from an eight-month participatory action research (PAR project involving seven high-school aged Black males in South Los Angeles; students undertook research to empirically verify and qualitatively explore narratives concerning incarceration and university enrollment. Utilizing a critical ethnographic methodology to privilege student voice, the author shares how „low-performing‟ students in an urban setting utilize their mathematical knowledge to become critically literate about these narratives. Highlighting two student-constructed counternarratives he terms mathematical counterstories, the author shows how students used data analysis to contradict dominant understandings about young Black males. The author argues math counterstories are a unique synthesis of critical and mathematical literacies that are supported through PAR. Implications for the re-orientation of high school-aged Black males towards mathematics are discussed.

  18. Knight Commission Tells Presidents to Use Their Power to Reform the "Fundamental Premises" of College Sports.

    Science.gov (United States)

    Lederman, Douglas

    1991-01-01

    This article describes the report of the Knight Foundation Commission on Intercollegiate Athletics, which enunciates principles of a new model of college sports governance. Ten recommendations include total authority given to college presidents, who should ensure program compliance with federal statutes barring sex discrimination; and review of…

  19. Teaching the Modern Presidency.

    Science.gov (United States)

    Rimmerman, Craig A.

    1989-01-01

    Stresses the need to challenge students' unrealistic ideas and heightened expectations of U.S. presidential performance. Maintains that college courses about the presidency must stress the role of the president within the context of democratic accountability, Madisonian principles, and the separation of powers doctrine. Discusses presidential…

  20. Critical power for lower hybrid current drive

    International Nuclear Information System (INIS)

    Assis, A.S. de; Sakanaka, P.H.; Azevedo, C.A. de; Busnardo-Neto, J.

    1995-11-01

    We have solved numerically the quasilinear Fokker-Planck equation which models the critical power for lower hybrid wave current drive. An exact value for the critical power necessary for current saturation, for tokamak current drive experiments, has been obtained. The nonlinear treatment presented here leads to a final profile for the parallel distribution function which is a plateau only in a part of the resonance region. This form of the distribution function is intermediate between two well known results: a plateau throughout the resonance region for the linear strong-source regime, D wave >> D coll and no plateau at all in the resonance region the linear weak-source regimen, D wave coll . The strength of the external power source and the value of the dc electric field are treated as given parameters in the integration scheme. (author). 24 refs, 6 figs

  1. Critical Power Response to Power Oscillations in Boiling Water Reactors

    International Nuclear Information System (INIS)

    Farawila, Yousef M.; Pruitt, Douglas W.

    2003-01-01

    The response of the critical power ratio to boiling water reactor (BWR) power oscillations is essential to the methods and practice of mitigating the effects of unstable density waves. Previous methods for calculating generic critical power response utilized direct time-domain simulations of unstable reactors. In this paper, advances in understanding the nature of the BWR oscillations and critical power phenomena are combined to develop a new method for calculating the critical power response. As the constraint of the reactor state - being at or slightly beyond the instability threshold - is removed, the new method allows the calculation of sensitivities to different operation and design parameters separately, and thus allows tighter safety margins to be used. The sensitivity to flow rate and the resulting oscillation frequency change are given special attention to evaluate the extension of the oscillation 'detect-and-suppress' methods to internal pump plants where the flow rate at natural circulation and oscillation frequency are much lower than jet pump plants

  2. Visit of the chinese Vice-President of the people's republic of China, Hu Jintao, at the Bugey nuclear power plant

    International Nuclear Information System (INIS)

    2001-11-01

    During the visit of the Vice-President of the people's republic of China at the Bugey nuclear power plant, EDF showed its will of cooperation with China in the energy domain. This document presents the main aspects of this cooperation: the chinese electric power system panorama, the EDF investments in China and the future development. (A.L.B.)

  3. New Higher Education President Integration: Change and Resistance Viewed through Social Power Bases and a Change Model Lens

    Science.gov (United States)

    Gearin, Christopher A.

    2017-01-01

    This study investigates how new presidents of higher education institutions struggle to understand their organisations, paying special attention to campus resistance, and how new presidents manage institutional dynamics and expectations. A qualitative study using a phenomenological approach is conducted with 11 single-campus presidents of…

  4. Presidents' Words

    CERN Multimedia

    Staff Association

    2015-01-01

    In the context of the sixtieth anniversary of the Staff Association, we asked former presidents to tell us about their years of Presidency. We continue in this issue of Echo with the contribution of Luit de Jonge. Luit de Jonge My only year as president (mid-1982 to mid-1983) of the Staff Association was intense and eventful. Michel Vitasse, who had prepared the ground for me as his successor, had previously worked with his deputies on the modes of staff representation in major international organizations. We had only one official body for discussions with Management, the Standing Consultation Committee (SCC). As its name suggests, this committee was advisory only, but we, the Staff Association, wanted to negotiate and reach signed agreements. A joint group had been established (President Günther Ullmann and Vice President Romain Pittin, who at the same time was Vice-President of the Staff Association) to study the issue. In the end, it was clear that the CERN Management did not want to chang...

  5. Civilian Nuclear Power. Appendices to a report to the President - 1962

    International Nuclear Information System (INIS)

    1962-01-01

    Four recent estimates of the fossil fuel resources in the United States are used in the Report on Civilian Nuclear Power. They are not entirely independent estimates and, in particular, three of the estimates of coal resources have as their basis the data in 'Coal Reserves of the United States - A Progress Report, January 1, 1960,' Geological Survey Bulletin 1136. The total energy content of the various fossil fuel resources remaining in the United States as given by these estimates has been summarized.

  6. Outsider Presidents and Neophyte Ministers: Evidence from the Fujimori Example

    Directory of Open Access Journals (Sweden)

    Miguel CARRERAS

    2013-07-01

    Full Text Available The critics of presidentialism point out that the arrival to power of outsiders is one of the perils of presidentialism. This contributes to this literature by analyzing the impact of outsider presidents on cabinet composition. The central argument is that outsider presidents tend to appoint technocratic and independent ministers. Outsiders do not have the willingness or the capacity to negotiate with other political forces because they lack a political socialization. Moreover, a strategy of confrontation with established parties is politically and electorally more advantageous for outsider presidents. In this article, I provide empirical evidence based on an in-depth analysis of the Peruvian cabinets in the period 1980-1995. This work compares the cabinets of two presidents that were traditional party leaders (Belaúnde and García with the cabinets of an outsider (Fujimori. I also analyze the consequences of having a cabinet made of political neophytes for the functioning of the cabinet.

  7. Morality and Foreign Policy. A Symposium on President Carter's Stance.

    Science.gov (United States)

    Lefever, Ernest W., Ed.

    This monograph contains a critical examination of President Carter's view on ethics and foreign policy as expressed in his commencement speech at Notre Dame University on May 22, 1977. The book is organized into three parts. Part 1 contains Mr. Carter's speech entitled, "Power for Humane Purposes." Part 2 contains nine responses to the…

  8. Presidents' Words

    CERN Multimedia

    Staff Association

    2015-01-01

    In the context of the sixtieth anniversary of the Staff Association, we asked former presidents to tell us about their years of Presidency. We continue in this issue of Echo with the contribution of Franco Francia. Franco Francia During my term as President of the Staff Association (January 1978 – June 1980) a major topic was the Review of Social and Economic Conditions (RESCO). It was the first major revision of the CERN Staff Rules and Regulations. The salary scale at the time, before the revision, had a parabolic shape. For an organization like CERN, which already had a third of its staff with a university level education, this proportion hinted at a too important growth of the total salary bill, compared to the cost of investment and maintenance of the CERN facilities. We thus flattened the curve by stopping the automatic advancement in grades 12 to 14 for three years. This measure, although restrictive for senior staff, made the CERN budget more acceptable in the long term to the Membe...

  9. Presidents' Words

    CERN Document Server

    Staff Association

    2015-01-01

    In the context of the sixtieth anniversary of the Staff Association, we asked former presidents to tell us about their years of Presidency. We start in this issue of Echo with contributions from Michel Vitasse and Jean-Pol Matheys.   Michel Vitasse Having had the honour and pleasure of participating in the development of the Staff Association, as its president for seven years, during three different periods in the years 1980, 1990 and 2000 and working with seven Directors-General, I was asked to write a few lines about this experience. First of all, it has been a wonderful human experience. What a privilege to have met, at all levels, colleagues from all nationalities and of all trades, who devote all their efforts with dedication and passion, to an ideal of European scientific collaboration. Furthermore, I was able to share with others some principles of action, such as: Defending all categories of staff, maintaining its unity, by taking into account in our strategic and tactical choices...

  10. President of Estonia : the mouse that roared

    Index Scriptorium Estoniae

    2009-01-01

    President Toomas Hendrik Ilvese kõnest 2009. a. aprillis Tallinnas toimunud Euroopa Liidu liikmesriikide ministrite küberjulgeoleku konverentsil CIIP (Critical Information Infrastructure Protection)

  11. Visit of Mr. Susumu Yoda, Japanese Atomic Energy Commission, Mr. Nobuo Natsume, Vice-President, Central Research Institute of Electric Power Industry, Japan (CRIEPI), Mr. Nobuya Yoshiki, CRIEPI, Mrs. Seiko Ichikawa, Interpreter, with Mr. Taylor of CERN, visiting SM18

    CERN Multimedia

    Laurent Guiraud

    2000-01-01

    Visit of Mr. Susumu Yoda, Japanese Atomic Energy Commission, Mr. Nobuo Natsume, Vice-President, Central Research Institute of Electric Power Industry, Japan (CRIEPI), Mr. Nobuya Yoshiki, CRIEPI, Mrs. Seiko Ichikawa, Interpreter, with Mr. Taylor of CERN, visiting SM18

  12. Power and Ideology in American Sport. A Critical Perspective.

    Science.gov (United States)

    Sage, George H.

    This book offers a critical perspective in examining how the dominant power interests influence sport and its role in society. It provides insights into how government, big business, the mass media, and educational institutions gain and maintain power and wealth while sport participants and spectators look to sport for enjoyment, creative…

  13. Study on self organized criticality of China power grid blackouts

    Energy Technology Data Exchange (ETDEWEB)

    Zhao, Xingyong; Zhang, Xiubin; He, Bin [Department of Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240 (China)

    2009-03-15

    Based on the complex system theory and the concept of self organized criticality (SOC) theory, the mechanism of China power grid blackout is studied by analyzing the blackout data in the China power system from 1981 to 2002. The probability distribution functions of various measures of blackout size have a power tail. The analysis of scaled window variance and rescaled range statistics of the time series show moderate long time correlations. The blackout data seem consistent with SOC; the results obtained show that SOC dynamics may play an important role in the dynamics of power systems blackouts. It would be possible to propose novel approaches for understanding and controlling power systems blackouts. (author)

  14. Study on self organized criticality of China power grid blackouts

    Energy Technology Data Exchange (ETDEWEB)

    Zhao Xingyong [Department of Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240 (China)], E-mail: zhaoxingyong@sjtu.edu.cn; Zhang Xiubin; He Bin [Department of Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240 (China)

    2009-03-15

    Based on the complex system theory and the concept of self organized criticality (SOC) theory, the mechanism of China power grid blackout is studied by analyzing the blackout data in the China power system from 1981 to 2002. The probability distribution functions of various measures of blackout size have a power tail. The analysis of scaled window variance and rescaled range statistics of the time series show moderate long time correlations. The blackout data seem consistent with SOC; the results obtained show that SOC dynamics may play an important role in the dynamics of power systems blackouts. It would be possible to propose novel approaches for understanding and controlling power systems blackouts.

  15. Experimental Study on Critical Power in a Hemispherical Narrow Gap

    International Nuclear Information System (INIS)

    Park, Rae-Joon; Ha, Kwang-Soon; Kim, Sang-Baik; Kim, Hee-Dong; Jeong, Ji-Hwan

    2002-01-01

    An experimental study of critical heat flux in gap (CHFG) has been performed to investigate the inherent cooling mechanism in a hemispherical narrow gap. The objectives of the CHFG test are to measure critical power from a critical heat removal rate through the hemispherical narrow gap using distilled water with experimental parameters of system pressure and gap width. The CHFG test results have shown that a countercurrent flow limitation (CCFL) brings about local dryout at the small edge region of the upper part and finally global dryout in a hemispherical narrow gap. Increases in the gap width and pressure lead to an increase in critical power. The measured values of critical power are lower than the predictions made by other empirical CHF correlations applicable to flat plate, annuli, and small spherical gaps. The measured data on critical power in the hemispherical narrow gaps have been correlated using nondimensional parameters with a range of approximately ±20%. The developed correlation has been expanded to apply the spherical geometry using the Siemens/KWU correlation

  16. Critical path analysis in early stage of nuclear power project

    International Nuclear Information System (INIS)

    Xie Ahai

    2009-01-01

    The technical program and contract model as well as project management system and preliminary design defined in the early stage of nuclear power project are the key condition impact on the quality, schedule and cost of the nuclear power project. This paper, taking the CPR1000 coastal nuclear power station as an example, analyzes the critical path in the early stage of nuclear power project for five fields, i.e. licensing, design and procurement, site preparation, tender of construction contracts and construction preparation, and organization. (authors)

  17. Visit of the Italian President

    CERN Multimedia

    2003-01-01

    "CERN stands as the demonstration of the great results that science can achieve [...] when it succeeds in getting all the main players in international scientific cooperation involved," stated the President of the Italian Republic, Carlo Azeglio Ciampi, in front of an overcrowded and enthusiastic Main Auditorium. The President visited CERN on 2nd December, and met the CERN directorate as well as the Italians at CERN. With about 1500 Italians working at CERN, which is one sixth of the total personnel, they are the second largest nationality at CERN. The Italian President visited the CMS assembly hall and the LHC superconducting magnet test hall before meeting the CERN community, in particular Italian personnel, in the main auditorium. There he emphasised the role of CERN as a transnational model for research which not only achieved great results in science but is also a powerful vehicle for progress in other fields. President Ciampi visits the LHC superconducting test hall together with Luciano Maiani and Lu...

  18. Technological Mediation and Power: Postphenomenology, Critical Theory, and Autonomist Marxism

    NARCIS (Netherlands)

    Bantwal Rao, M.; Jongerden, J.P.; Lemmens, P.C.; Ruivenkamp, G.T.P.

    2015-01-01

    This article focuses on the power of technological mediation from the point of view of autonomist Marxism (Hardt, Negri, Virno, Berardi, Lazzarrato). The first part of the article discusses the theories developed on technological mediation in postphenomenology (Ihde, Verbeek) and critical theory of

  19. Cluster tails for critical power-law inhomogeneous random graphs

    NARCIS (Netherlands)

    van der Hofstad, R.; Kliem, S.; van Leeuwaarden, J.S.H.

    2018-01-01

    Recently, the scaling limit of cluster sizes for critical inhomogeneous random graphs of rank-1 type having finite variance but infinite third moment degrees was obtained in Bhamidi et al. (Ann Probab 40:2299–2361, 2012). It was proved that when the degrees obey a power law with exponent τ∈ (3 , 4)

  20. Work and power fluctuations in a critical heat engine

    Science.gov (United States)

    Holubec, Viktor; Ryabov, Artem

    2017-09-01

    We investigate fluctuations of output work for a class of Stirling heat engines with working fluid composed of interacting units and compare these fluctuations to an average work output. In particular, we focus on engine performance close to a critical point where Carnot's efficiency may be attained at a finite power as reported by M. Campisi and R. Fazio [Nat. Commun. 7, 11895 (2016), 10.1038/ncomms11895]. We show that the variance of work output per cycle scales with the same critical exponent as the heat capacity of the working fluid. As a consequence, the relative work fluctuation diverges unless the output work obeys a rather strict scaling condition, which would be very hard to fulfill in practice. Even under this condition, the fluctuations of work and power do not vanish in the infinite system size limit. Large fluctuations of output work thus constitute inseparable and dominant element in performance of the macroscopic heat engines close to a critical point.

  1. Work and power fluctuations in a critical heat engine.

    Science.gov (United States)

    Holubec, Viktor; Ryabov, Artem

    2017-09-01

    We investigate fluctuations of output work for a class of Stirling heat engines with working fluid composed of interacting units and compare these fluctuations to an average work output. In particular, we focus on engine performance close to a critical point where Carnot's efficiency may be attained at a finite power as reported by M. Campisi and R. Fazio [Nat. Commun. 7, 11895 (2016)2041-172310.1038/ncomms11895]. We show that the variance of work output per cycle scales with the same critical exponent as the heat capacity of the working fluid. As a consequence, the relative work fluctuation diverges unless the output work obeys a rather strict scaling condition, which would be very hard to fulfill in practice. Even under this condition, the fluctuations of work and power do not vanish in the infinite system size limit. Large fluctuations of output work thus constitute inseparable and dominant element in performance of the macroscopic heat engines close to a critical point.

  2. Curing critical links in oscillator networks as power flow models

    International Nuclear Information System (INIS)

    Rohden, Martin; Meyer-Ortmanns, Hildegard; Witthaut, Dirk; Timme, Marc

    2017-01-01

    Modern societies crucially depend on the robust supply with electric energy so that blackouts of power grids can have far reaching consequences. Typically, large scale blackouts take place after a cascade of failures: the failure of a single infrastructure component, such as a critical transmission line, results in several subsequent failures that spread across large parts of the network. Improving the robustness of a network to prevent such secondary failures is thus key for assuring a reliable power supply. In this article we analyze the nonlocal rerouting of power flows after transmission line failures for a simplified AC power grid model and compare different strategies to improve network robustness. We identify critical links in the grid and compute alternative pathways to quantify the grid’s redundant capacity and to find bottlenecks along the pathways. Different strategies are developed and tested to increase transmission capacities to restore stability with respect to transmission line failures. We show that local and nonlocal strategies typically perform alike: one can equally well cure critical links by providing backup capacities locally or by extending the capacities of bottleneck links at remote locations. (paper)

  3. Thermal power blocks with ultra-super-critical steam parameters

    Directory of Open Access Journals (Sweden)

    Aličić Merim M.

    2016-01-01

    Full Text Available New generation of thermal power plants are required to have increased utilization rates, in addition to reduced emissions of pollutants, in order to reach optimal solutions, from both technical and economic point of view. One way to achieve greater utilization efficiency is operation of the plant at super critical (SC or ultra super critical steam parameters (USC. However, achieving high parameters depends on use of new materials, which have better properties at high temperatures and pressures, use of new welding technologies and by solving the problem of corrosion. The paper gives an overview of some of the plants with these parameters.

  4. High-power FEL design issues - a critical review

    Energy Technology Data Exchange (ETDEWEB)

    Litvinenko, V.N.; Madey, J.M.J.; O`Shea, P.G. [Duke Univ., Durham, NC (United States)

    1995-12-31

    The high-average power capability of FELs has been much advertised but little realized. In this paper we provide a critical analysis of the technological and economic issues associated with high-average power FEL operation from the UV to near IR. The project of IR FEL for the Siberian Center of photochemical researches is described. The distinguished features of this project are the use of the race-track microtron-recuperator and the {open_quotes}electron output of radiation{close_quotes}. The building for the machine is under reconstruction now. About half of hardware has been manufactured. The assembly of installation began.

  5. President's Pages / Craig Rawlings

    Index Scriptorium Estoniae

    Rawlings, Craig

    2006-01-01

    Eesti president Toomas Hendrik Ilves, Rootsi-Eesti Kaubanduskoja president Anders Hedman, Prantsuse-Eesti äriklubi C.A.F.E. president Karl Jaanimägi, Briti-Eesti Kaubanduskoja president Märt Haamer ja Eesti-Ameerika Tööstuskoja president Craig Rawlings räägivad Eesti majanduse olukorrast, tööjõuprobleemist, konkurentsivõimest. President T. H. Ilves rõhutab ohtusid, mis kaasnevad kvalifitseerimata tööjõu sissetoomisega väljastpoolt Euroopa Liitu

  6. Smart Power Supply Systems for Mission Critical Facilities

    Science.gov (United States)

    Hirose, Keiichi; Babasaki, Tadatoshi

    To develop the advanced and rich life, and the also economy and social activity continuously, various types of energy are necessary. At the same time, to protect the global environment and to prevent the depletion of natural resources, the effective and moreover efficient use of energy is becoming important. Electric power is one of the most important forms of energy for our life and society. This paper describes topics and survey results of technical trends regarding the electric power supply systems which are playing a core role as the important infrastructure to support the emergence of information-oriented society. Specifically, the power supply systems that enhance high power quality and reliability (PQR) are important for the steady growth of information and communication services. The direct current (DC) power, which has been used for telecommunications power systems and information and communications technologies (ICT), enables existing utilities' grid and distributed energy resources to keep a balance between supply and demand of small-scaled power systems or microgirds. These techniques are expected to be part of smartgrid technologies and facilitate the installation of distributed generators in mission critical facilities.

  7. Ontario-U.S. power outages : impacts on critical infrastructure

    International Nuclear Information System (INIS)

    2006-01-01

    This paper described the power outage and resulting blackout that occurred on August 14, 2003 and identified how critical infrastructure was directly and interdependently impacted in Canada. The aim of the paper was to assist critical infrastructure protection and emergency management professionals in assessing the potential impacts of large-scale critical infrastructure disruptions. Information for the study was acquired from Canadian and American media reports and cross-sectoral information sharing with provincial and federal governments and the private sector. The blackout impacted most of the sources and means of generating, transmitting and distributing power within the area, which in turn impacted all critical infrastructure sectors. Landline and cellular companies experienced operational difficulties, which meant that emergency responders were impacted. Newspapers and the electronic media struggled to release information to the public. The banking and finance industry experienced an immediate degradation of services. The power outage caused shipping and storage difficulties for commercial retailers and dairy producers. A number of incidents were reported where only partially treated waste water was released into neighbouring waterways. The timing of the blackout coincided with the closures of workplaces and created additional difficulties on transportation networks. Many gas station pumps were inoperable. Police, fire departments and ambulance services experienced a dramatic increase in the volume of calls received, and all branches of the emergency services sector encountered transportation delays and difficulties with communications equipment. Nuclear reactors were also impacted. An estimated 150,000 Government of Canada employees were unable to report to work. Estimates have indicated that the power outage cost Ontario's economy between $1 and $2 billion. The outage negatively impacted 82 per cent of small businesses in Ontario. 170 refs., 3 figs

  8. The Analysis of SBWR Critical Power Bundle Using Cobrag Code

    Directory of Open Access Journals (Sweden)

    Yohannes Sardjono

    2013-03-01

    Full Text Available The coolant mechanism of SBWR is similar with the Dodewaard Nuclear Power Plant (NPP in the Netherlands that first went critical in 1968. The similarity of both NPP is cooled by natural convection system. These coolant concept is very related with same parameters on fuel bundle design especially fuel bundle length, core pressure drop and core flow rate as well as critical power bundle. The analysis was carried out by using COBRAG computer code. COBRAG computer code is GE Company proprietary. Basically COBRAG computer code is a tool to solve compressible three-dimensional, two fluid, three field equations for two phase flow. The three fields are the vapor field, the continuous liquid field, and the liquid drop field. This code has been applied to analyses model flow and heat transfer within the reactor core. This volume describes the finitevolume equations and the numerical solution methods used to solve these equations. This analysis of same parameters has been done i.e.; inlet sub cooling 20 BTU/lbm and 40 BTU/lbm, 1000 psi pressure and R-factor is 1.038, mass flux are 0.5 Mlb/hr.ft2, 0.75 Mlb/hr.ft2, 1.00 Mlb/hr.ft2 and 1.25 Mlb/hr.ft2. Those conditions based on history operation of some type of the cell fuel bundle line at GE Nuclear Energy. According to the results, it can be concluded that SBWR critical power bundle is 10.5 % less than current BWR critical power bundle with length reduction of 12 ft to 9 ft.

  9. President's address

    International Nuclear Information System (INIS)

    Aspin, Norman.

    1981-06-01

    During 1980/81 the Canadian uranium industry continued to invest in new facilities. Redevelopment is taking place in Elliot Lake, and new mines are being started in Saskatchewan. Although a moratorium on uranium exploration and mining in the province of British Columbia was issued, the royal commission appointed to look into the subject stated that it saw no reason to prohibit exploration. A mood of optimism is growing in the manufacturing sector of the Canadian nuclear industry; the scarcity of orders is being offset by the excellent performance of the Ontario Hydro reactors and prospect for further construction in Ontario, Quebec and New Brunswick. The possibility of international sales of CANDU reactors is also strong. Public opinion in favour of nuclear power is growing

  10. Critical Clearing Time and Wind Power in Small Isolated Power Systems Considering Inertia Emulation

    Directory of Open Access Journals (Sweden)

    Elías Jesús Medina-Domínguez

    2015-11-01

    Full Text Available The stability and security of small and isolated power systems can be compromised when large amounts of wind power enter them. Wind power integration depends on such factors as power generation capacity, conventional generation technology or grid topology. Another issue that can be considered is critical clearing time (CCT. In this paper, wind power and CCT are studied in a small isolated power system. Two types of wind turbines are considered: a squirrel cage induction generator (SCIG and a full converter. Moreover, the full converter wind turbine’s inertia emulation capability is considered, and its impact on CCT is discussed. Voltage is taken into account because of its importance in power systems of this kind. The study focuses on the small, isolated Lanzarote-Fuerteventura power system, which is expected to be in operation by 2020.

  11. University Presidents: Academic Chameleons

    Science.gov (United States)

    Buxton, Thomas H.; And Others

    1976-01-01

    Sampling the opinions of at least one college or university president in each state and at schools of all sizes, the authors measure the degree of job satisfaction experienced by presidents. (Editor/LBH)

  12. Inside the College Presidency.

    Science.gov (United States)

    Educational Record, 1996

    1996-01-01

    In interview, president of the American Council on Education, Robert H. Atwell, offers his perspectives on the current state of the college presidency; its pressures, rewards, and frustrations; and what he'd like to see administrators do differently. Qualities of an effective president include high energy, tolerance for ambiguity, good listening…

  13. Critical success factors for BOT electric power projects in China: Thermal power versus wind power

    Energy Technology Data Exchange (ETDEWEB)

    Zhao, Zhen-Yu. [School of Business Administration, North China Electric Power University, Beijing 102206 (China); Zuo, Jian; Zillante, George [School of Natural and Built Environments, University of South Australia, Adelaide 5001 (Australia); Wang, Xin-Wei [Shandong Nuclear Power Equipment Manufacturing Co. Ltd, Haiyang, Shandong 265118 (China)

    2010-06-15

    Chinese electric power industry has adopted Build-Operate-Transfer (BOT) approach in a number of projects to alleviate the pressure of sole state-owned investment. The Chinese government has taken enormous efforts to create an environment to facilitate the application of BOT approach in electric power projects. Moreover, the growing attention on the sustainability issues puts the traditional major source of electricity - thermal power project under more strict scrutiny. As a result, various renewable energy projects, particularly the wind power projects have involved private sector funds. Both thermal power and wind power projects via BOT approach have met with a varying degree of success. Therefore, it is imperative to understand the factors contributing towards the success of both types of BOT power projects. Using an extensive literature survey, this paper identifies 31 success factors under 5 categories for Chinese BOT electric power projects. This is followed by a questionnaire survey to exam relative significance of these factors. The results reveal the different levels of significance of success factors for BOT thermal power projects versus wind power projects. Finally, survey results were analyzed to explore the underlying construction and distributions among the identified success factors. This study provides a valuable reference for all involved parties that are interested in developing BOT electric power projects in China. (author)

  14. Prospect of French industrial technology research and development under President Chirac`s political power; Shiraku seikenka ni okeru Futsu sangyo gijutsu kenkyu kaihatsu seisaku no mitoshi

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-02-01

    This paper describes a prospect of French industrial technology research and development under President Chirac`s political power. The research and development in France is characterized by the national leadership. It depends greatly on the system and organization as well as the economical factors. The policy concentrates on the reformation of development organization rather than the research and development itself. It is required to provide the cultural and social tradition and environment that can bring up people bearing it, the system that can supply the methods of research and development, and the force of technology and market development that can industrialize and commercialize its results. The national leadership in France basically relates to all of these three factors. The actors of framework for the financing and enforcement of research and development are illustrated in a scheme by dividing them into government and companies. The actors for the enforcement of research and development are also divided into governmental public organizations and companies. This paper also provides the defense development in the private companies having a large finance of research and development from the government. The finance of research and development for public welfare from the government is roughly divided into the large-scale projects with determined usage by the government, and the supports for proposals by the companies. 13 refs., 4 figs., 40 tabs.

  15. Critical Power: An Important Fatigue Threshold in Exercise Physiology

    Science.gov (United States)

    Poole, David C.; Burnley, Mark; Vanhatalo, Anni; Rossiter, Harry B.; Jones, Andrew M.

    2016-01-01

    The hyperbolic form of the power-duration relationship is rigorous and highly conserved across species, forms of exercise and individual muscles/muscle groups. For modalities such as cycling, the relationship resolves to two parameters, the asymptote for power (critical power, CP) and the so-called W′ (work doable above CP), which together predict the tolerable duration of exercise above CP. Crucially, the CP concept integrates sentinel physiological profiles - respiratory, metabolic and contractile - within a coherent framework that has great scientific and practical utility. Rather than calibrating equivalent exercise intensities relative to metabolically distant parameters such as the lactate threshold or V̇O2 max, setting the exercise intensity relative to CP unifies the profile of systemic and intramuscular responses and, if greater than CP, predicts the tolerable duration of exercise until W′ is expended, V̇O2 max is attained, and intolerance is manifested. CP may be regarded as a ‘fatigue threshold’ in the sense that it separates exercise intensity domains within which the physiological responses to exercise can (CP) be stabilized. The CP concept therefore enables important insights into 1) the principal loci of fatigue development (central vs. peripheral) at different intensities of exercise, and 2) mechanisms of cardiovascular and metabolic control and their modulation by factors such as O2 delivery. Practically, the CP concept has great potential application in optimizing athletic training programs and performance as well as improving the life quality for individuals enduring chronic disease. PMID:27031742

  16. Critical Power: An Important Fatigue Threshold in Exercise Physiology.

    Science.gov (United States)

    Poole, David C; Burnley, Mark; Vanhatalo, Anni; Rossiter, Harry B; Jones, Andrew M

    2016-11-01

    : The hyperbolic form of the power-duration relationship is rigorous and highly conserved across species, forms of exercise, and individual muscles/muscle groups. For modalities such as cycling, the relationship resolves to two parameters, the asymptote for power (critical power [CP]) and the so-called W' (work doable above CP), which together predict the tolerable duration of exercise above CP. Crucially, the CP concept integrates sentinel physiological profiles-respiratory, metabolic, and contractile-within a coherent framework that has great scientific and practical utility. Rather than calibrating equivalent exercise intensities relative to metabolically distant parameters such as the lactate threshold or V˙O2max, setting the exercise intensity relative to CP unifies the profile of systemic and intramuscular responses and, if greater than CP, predicts the tolerable duration of exercise until W' is expended, V˙O2max is attained, and intolerance is manifested. CP may be regarded as a "fatigue threshold" in the sense that it separates exercise intensity domains within which the physiological responses to exercise can (CP) be stabilized. The CP concept therefore enables important insights into 1) the principal loci of fatigue development (central vs. peripheral) at different intensities of exercise and 2) mechanisms of cardiovascular and metabolic control and their modulation by factors such as O2 delivery. Practically, the CP concept has great potential application in optimizing athletic training programs and performance as well as improving the life quality for individuals enduring chronic disease.

  17. Presidents' words - Gianni Deroma

    CERN Multimedia

    Staff Association

    2015-01-01

    Gianni Deroma This week we publish the last contributions in the 'Words of presidents' series by giving the floor to Gianni Deroma (2007-2010) and Michel Goossens (2011-2015). "Tu patere legem quam ipse fecisti" This Latin adage has marked my years with the Staff Association (SA). For someone like me, coming from the technical world, the discovery of the importance of the role played by legal matters in the defence of the staff illustrates a new reality and incarnates my years spent with the SA. We, members of personnel, as citizens have as reference the democratic societies in which we live. CERN is not a democracy. The Member States, the Director-General have full powers, or almost. Contrary to citizens of states, we do not elect our leaders. So in that context is it useful to have a Staff Association? Or does it only serve as a necessary alibi for those who have the power? This is where a legal approach makes sense, in counterbalancing the power of our governing ...

  18. The button effect of CANFLEX bundle on the critical heat flux and critical channel power

    Energy Technology Data Exchange (ETDEWEB)

    Park, Joo Hwan; Jun, Jisu; Suk, Ho Chun [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of); Dimmick, G. R.; Bullock, D. E.; Inch, W. [Atomic Energy of Canada Limited, Ontario (Canada)

    1997-12-31

    A CANFLEX (CANdu FLEXible fuelling) 43-element bundle has developed for a CANDU-6 reactor as an alternative of 37-element fuel bundle. The design has two diameter elements (11.5 and 13.5 mm) to reduce maximum element power rating and buttons to enhance the critical heat flux (CHF), compared with the standard 37-element bundle. The freon CHF experiments have performed for two series of CANFLEX bundles with and without buttons with a modelling fluid as refrigerant R-134a and axial uniform heat flux condition. Evaluating the effects of buttons of CANFLEX bundle on CHF and Critical Channel Power (CCP) with the experimental results, it is shown that the buttons enhance CCP as well as CHF. All the CHF`s for both the CANFLEX bundles are occurred at the end of fuel channel with the high dryout quality conditions. The CHF enhancement ratio are increased with increase of dryout quality for all flow conditions and also with increase of mass flux only for high pressure conditions. It indicates that the button is a useful design for CANDU operating condition because most CHF flow conditions for CANDU fuel bundle are ranged to high dryout quality conditions. 5 refs., 11 figs. (Author)

  19. The button effect of CANFLEX bundle on the critical heat flux and critical channel power

    Energy Technology Data Exchange (ETDEWEB)

    Park, Joo Hwan; Jun, Jisu; Suk, Ho Chun [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of); Dimmick, G R; Bullock, D E; Inch, W [Atomic Energy of Canada Limited, Ontario (Canada)

    1998-12-31

    A CANFLEX (CANdu FLEXible fuelling) 43-element bundle has developed for a CANDU-6 reactor as an alternative of 37-element fuel bundle. The design has two diameter elements (11.5 and 13.5 mm) to reduce maximum element power rating and buttons to enhance the critical heat flux (CHF), compared with the standard 37-element bundle. The freon CHF experiments have performed for two series of CANFLEX bundles with and without buttons with a modelling fluid as refrigerant R-134a and axial uniform heat flux condition. Evaluating the effects of buttons of CANFLEX bundle on CHF and Critical Channel Power (CCP) with the experimental results, it is shown that the buttons enhance CCP as well as CHF. All the CHF`s for both the CANFLEX bundles are occurred at the end of fuel channel with the high dryout quality conditions. The CHF enhancement ratio are increased with increase of dryout quality for all flow conditions and also with increase of mass flux only for high pressure conditions. It indicates that the button is a useful design for CANDU operating condition because most CHF flow conditions for CANDU fuel bundle are ranged to high dryout quality conditions. 5 refs., 11 figs. (Author)

  20. Critical channel power calculation for nominal operation in the CNE (Embalse nuclear power plant): sensitivity study

    International Nuclear Information System (INIS)

    Garcia, A.E.; Parkansky, D.G.

    1993-01-01

    In the Embalse nuclear power plant (CNE), the Regional Overpower Protection System acting on the Shutdown Systems number 1 and number 2 protects the reactor against overpowers in the reactor field for a localized peaking or a power increase in the reactor as a whole. This report summarizes the results of the critical channel power calculation for the time average powers configuration for the 380 reactor field channels. The final purpose of this work is to analyze and eventually modify the detector set points. Other reactor configurations are being analyzed. The report also presents a sensitivity analysis in order to evaluate potential sources of error and uncertainties which could affect the ROP performance. (author)

  1. Simulated front crawl swimming performance related to critical speed and critical power.

    Science.gov (United States)

    Toussaint, H M; Wakayoshi, K; Hollander, A P; Ogita, F

    1998-01-01

    Competitive pool swimming events range in distance from 50 to 1500 m. Given the difference in performance times (+/- 23-1000 s), the contribution of the aerobic and anaerobic energy systems changes considerably with race distance. In training practice the regression line between swimming distance and time (Distance = critical velocity x time + anaerobic swimming capacity) is used to determine the individual capacity of the aerobic and anaerobic metabolic pathways. Although there is confidence that critical velocity and anaerobic swimming capacity are fitness measures that separate aerobic and anaerobic components, a firm theoretical basis for the interpretation of these results does not exist. The purpose of this study was to evaluate the critical power concept and anaerobic swimming capacity as measures of the aerobic and anaerobic capacity using a modeling approach. A systems model was developed that relates the mechanics and energetics involved in front crawl swimming performance. From actual swimming flume measurements, the time dependent aerobic and anaerobic energy release was modeled. Data derived from the literature were used to relate the energy cost of front crawl swimming to swimming velocity. A balance should exist between the energy cost to swim a distance in a certain time and the concomitant aerobic and anaerobic energy release. The ensuing model was used to predict performance times over a range of distances (50-1500 m) and to calculate the regression line between swimming distance and time. Using a sensitivity analysis, it was demonstrated that the critical velocity is indicative for the capacity of the aerobic energy system. Estimates of the anaerobic swimming capacity, however, were influenced by variations in both anaerobic and aerobic energy release. Therefore, it was concluded that the anaerobic swimming capacity does not provide a reliable estimate of the anaerobic capacity.

  2. President kinnitas riigieelarve

    Index Scriptorium Estoniae

    2003-01-01

    Pealkiri ajalehes Postimees (2003/Dec/30) lk. 3: "President kuulutas välja tuleva aasta riigieelarve". Ilmunud ka Meie Maa (2003/Dec/30) lk. 1 ; SL Õhtuleht (2003/Dec/30) lk. 2 ; Virumaa Teataja (2003/Dec/30) lk. 1. President Arnold Rüütel allkirjastas otsuse, millega kuulutas välja 2004. aasta riigieelarve

  3. Strategic Marketing for Presidents.

    Science.gov (United States)

    Pappas, Richard J., Ed.

    Designed to inform the marketing efforts of community college presidents, this document describes the importance of marketing, presents a targeted approach, and outlines the specific roles and skills needed by the president to ensure successful efforts and effective institutions. The first chapter, "Developing a Marketing-Strategic…

  4. FY 2011 Supplement to the President`s Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — This Supplement to the President`s Fiscal Year FY 2011 Budget provides a technical summary of the budget request for the Networking and Information Technology...

  5. FY 2009 Supplement to the President`s Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — Published: February 2008 Pages: 37 This Supplement to the President`s Fiscal Year FY 2009 Budget provides a technical summary of the budget request for the...

  6. FY 2007 Supplement to the President`s Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — This Supplement to the President`s Fiscal Year FY 2007 Budget provides a technical summary of the budget request for the Networking and Information Technology...

  7. FY 2012 Supplement to the President`s Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — The yearly Supplement to the President`s Budget for the NITRD Program is designed to present a succinct technical summary of the research activities planned and...

  8. FY 2008 Supplement to the President`s Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — This Supplement to the President`s Fiscal Year FY 2008 Budget provides a technical summary of the budget request for the Networking and Information Technology...

  9. FY 2010 Supplement to the President`s Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — This Supplement to the President`s Fiscal Year FY 2010 Budget provides a technical summary of the budget request for the Networking and Information Technology...

  10. Romanian President Visits CERN

    CERN Multimedia

    2001-01-01

    Director General Luciano Maiani watches as Romanian President Ion Iliescu signs the CERN guest book. On Friday the 12th of October, Romanian President Ion Iliescu arrived at CERN and was warmly greeted by Director General Luciano Maiani at the steps of building 500. After initial greetings and a general presentation of the laboratory, President Iliescu and his entourage embarked on a whistle stop tour of the CERN facilities. They visited the CMS magnet assembly hall and civil engineering work where presentations were made by CMS spokesperson Michel Della Negra and the ATLAS Tile Calorimeter where the president was introduced to Romanian physicists working here at CERN. Michel Della Negra explains some of the general principles behind CMS to President Iliescu during his visit last week. The Romanian teams working on CERN projects make very visible contributions, for example to the construction of the ATLAS experiment and to the preparation of its eventual scientific exploitation. 'Those of us on the ATLAS ...

  11. Cluster Tails for Critical Power-Law Inhomogeneous Random Graphs

    Science.gov (United States)

    van der Hofstad, Remco; Kliem, Sandra; van Leeuwaarden, Johan S. H.

    2018-04-01

    Recently, the scaling limit of cluster sizes for critical inhomogeneous random graphs of rank-1 type having finite variance but infinite third moment degrees was obtained in Bhamidi et al. (Ann Probab 40:2299-2361, 2012). It was proved that when the degrees obey a power law with exponent τ \\in (3,4), the sequence of clusters ordered in decreasing size and multiplied through by n^{-(τ -2)/(τ -1)} converges as n→ ∞ to a sequence of decreasing non-degenerate random variables. Here, we study the tails of the limit of the rescaled largest cluster, i.e., the probability that the scaling limit of the largest cluster takes a large value u, as a function of u. This extends a related result of Pittel (J Combin Theory Ser B 82(2):237-269, 2001) for the Erdős-Rényi random graph to the setting of rank-1 inhomogeneous random graphs with infinite third moment degrees. We make use of delicate large deviations and weak convergence arguments.

  12. TMI-2 decay power: LASL fission-product and actinide decay power calculations for the President's commission on the accident at Three Mile Island

    International Nuclear Information System (INIS)

    England, T.R.; Wilson, W.B.

    1980-03-01

    Fission-product and actinide decay heating, gas content, curies, and detailed contributions of the most important nuclide contributors were supplied in a series of letters following requests from the Presidential Commission on the Accident at Three Mile Island. In addition, similar data assuming different irradiation (power) histories were requested for purposes of comparison. This report consolidates the tabular and graphical data supplied and explains its basis

  13. TMI-2 decay power: LASL fission-product and actinide decay power calculations for the President's Commission at Three Mile Island

    Energy Technology Data Exchange (ETDEWEB)

    England, T.R.; Wilson, W.B.

    1979-10-01

    Fission-product and actinide decay heating, gas content, curies, and detailed contributions of the most important nuclide contributors were supplied in a series of letters following requests from the Presidential Commission on the Accident at Three Mile Island. In addition, similar data assuming different irradiation (power) histories were requested for purposes of comparison. This report consolidates the tabular and graphical data supplied and explains its basis.

  14. TMI-2 decay power: LASL fission-product and actinide decay power calculations for the President's Commission at Three Mile Island

    International Nuclear Information System (INIS)

    England, T.R.; Wilson, W.B.

    1979-10-01

    Fission-product and actinide decay heating, gas content, curies, and detailed contributions of the most important nuclide contributors were supplied in a series of letters following requests from the Presidential Commission on the Accident at Three Mile Island. In addition, similar data assuming different irradiation (power) histories were requested for purposes of comparison. This report consolidates the tabular and graphical data supplied and explains its basis

  15. Review of battery powered embedded systems design for mission-critical low-power applications

    Science.gov (United States)

    Malewski, Matthew; Cowell, David M. J.; Freear, Steven

    2018-06-01

    The applications and uses of embedded systems is increasingly pervasive. Mission and safety critical systems relying on embedded systems pose specific challenges. Embedded systems is a multi-disciplinary domain, involving both hardware and software. Systems need to be designed in a holistic manner so that they are able to provide the desired reliability and minimise unnecessary complexity. The large problem landscape means that there is no one solution that fits all applications of embedded systems. With the primary focus of these mission and safety critical systems being functionality and reliability, there can be conflicts with business needs, and this can introduce pressures to reduce cost at the expense of reliability and functionality. This paper examines the challenges faced by battery powered systems, and then explores at more general problems, and several real-world embedded systems.

  16. Indian President visits CERN

    CERN Multimedia

    Katarina Anthony

    2011-01-01

    On 1 October, her Excellency Mrs Pratibha Devisingh Patil, President of India, picked CERN as the first stop on her official state visit to Switzerland. Accompanied by a host of Indian journalists, a security team, and a group of presidential delegates, the president left quite an impression when she visited CERN’s Point 2!   Upon arrival, Pratibha Patil was greeted by CERN Director General Rolf Heuer, as well as senior Indian scientists working at CERN, and various department directors. After a quick overview of the Organization, Rolf Heuer and the President addressed India’s future collaboration with CERN. India is currently an Observer State of the Organization, and is considering becoming an Associate Member State. A short stop in LHC operations gave Steve Myers and the Accelerator team the opportunity to take the President on a tour through the LHC tunnel. From there, ALICE’s Tapan Nayak and Spokesperson Paolo Giubellino took Pratibha Patil to the experiment&am...

  17. Pragmatic Liberalism and President Obama

    Directory of Open Access Journals (Sweden)

    Haroon A. Khan

    2014-06-01

    Full Text Available This research seeks to examine the foreign policy of President Obama with special reference to Bangladesh from the point of pragmatic liberalism. Pragmatism means understanding the realities of the situation and making decisions based on thorough research of these realities. Pragmatism opposes strict adherence to ideological beliefs in pursuing foreign policy. President Obama came into power amid one of the most volatile and dangerous times in the history of the United States occupied with two foreign wars, and inherited an economy on the brink of collapse. The key features of Obama’s pragmatic liberalism in foreign policy are to promote liberal ideas as long as it does not threaten the national security interests, emphasize diplomacy in solving the conflicts, foster humanitarian issues, develop alliances and multilateral agreements, uphold the major national interests, and strengthen national security defined in terms of economic well-being. The article will analyze U.S. foreign policy toward Bangladesh based on pragmatic liberalism of President Obama.

  18. When Sex and Power Collide: An Argument for Critical Sexuality Studies.

    Science.gov (United States)

    Fahs, Breanne; McClelland, Sara I

    2016-01-01

    Attentive to the collision of sex and power, we add momentum to the ongoing development of the subfield of critical sexuality studies. We argue that this body of work is defined by its critical orientation toward the study of sexuality, along with a clear allegiance to critical modalities of thought, particularly feminist thought. Critical sexuality studies takes its cues from several other critical moments in related fields, including critical psychology, critical race theory, critical public health, and critical youth studies. Across these varied critical stances is a shared investment in examining how power and privilege operate, understanding the role of historical and epistemological violence in research, and generating new models and paradigms to guide empirical and theoretical research. With this guiding framework, we propose three central characteristics of critical sexuality studies: (a) conceptual analysis, with particular attention to how we define key terms and conceptually organize our research (e.g., attraction, sexually active, consent, agency, embodiment, sexual subjectivity); (b) attention to the material qualities of abject bodies, particularly bodies that are ignored, overlooked, or pushed out of bounds (e.g., viscous bodies, fat bodies, bodies in pain); and (c) heteronormativity and heterosexual privilege, particularly how assumptions about heterosexuality and heteronormativity circulate in sexuality research. Through these three critical practices, we argue that critical sexuality studies showcases how sex and power collide and recognizes (and tries to subvert) the various power imbalances that are deployed and replicated in sex research.

  19. Serbian President visits CERN

    CERN Multimedia

    Katarina Anthony

    2012-01-01

    On Tuesday 10 January, Serbian President Boris Tadić visited the Laboratory to sign the Agreement of granting the status of Associate Membership as the pre-stage to full Membership of CERN.    Before the signing ceremony, the President, welcomed by Director-General Rolf Heuer at CERN’s Point 5, took the opportunity to visit CERN. After a general introduction, the President took advantage of the shutdown to visit the LHC’s underground caverns. Leading the President through their respective experiments were spokespersons Fabiola Gianotti (ATLAS) and Joe Incandela (CMS).  After a morning of tours, President Tadić and Rolf Heuer signed the Agreement. Serbia’s status as an Associate Member as pre-stage to full Membership is expected to come into force following ratification by the Serbian Parliament. After a maximum period of five years, the CERN Council will decide on the admission of Serbia to full Membership. This new agreement continues Serbia&a...

  20. SCALE 5: Powerful new criticality safety analysis tools

    International Nuclear Information System (INIS)

    Bowman, Stephen M.; Hollenbach, Daniel F.; Dehart, Mark D.; Rearden, Bradley T.; Gauld, Ian C.; Goluoglu, Sedat

    2003-01-01

    Version 5 of the SCALE computer software system developed at Oak Ridge National Laboratory, scheduled for release in December 2003, contains several significant new modules and sequences for criticality safety analysis and marks the most important update to SCALE in more than a decade. This paper highlights the capabilities of these new modules and sequences, including continuous energy flux spectra for processing multigroup problem-dependent cross sections; one- and three-dimensional sensitivity and uncertainty analyses for criticality safety evaluations; two-dimensional flexible mesh discrete ordinates code; automated burnup-credit analysis sequence; and one-dimensional material distribution optimization for criticality safety. (author)

  1. 75 FR 81264 - Critical Path Transmission, LLC; Clear Power, LLC; v. California Independent System Operator, Inc...

    Science.gov (United States)

    2010-12-27

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. EL11-11-000] Critical Path Transmission, LLC; Clear Power, LLC; v. California Independent System Operator, Inc.; Notice of Complaint... and 306 of the Federal Power Act, 16 U.S.C. 824e and 825e (2006), Critical Path Transmission, LLC and...

  2. President sekkus suvilate erastamisse

    Index Scriptorium Estoniae

    2002-01-01

    Paslepas juba suveresidentsi omav president Arnold Rüütel soovis ootamatult enda kasutusse ka üht suvilat Keila-Joal, kuigi valitsus kavatseb sealse puhkekompleksi maha müüa. President kutsus Kadriorgu rahandusminister Harri Õunapuu ning avaldas soovi, et Keila-Joa puhkekompleksi müügi korral jääks üks suvila endiselt tema käsutusse. Jutuajamise juures viibis ka presidendi kantselei direktor Tarmo Mänd. Ilmunud ka Järva Teataja (2002/Sep/5) lk 1

  3. Offshore Wind Power Production in Critical Weather Conditions

    DEFF Research Database (Denmark)

    Cutululis, Nicolaos Antonio; Litong-Palima, Marisciel; Sørensen, Poul Ejnar

    2012-01-01

    control the power balance during offshore storm passages. The demonstration will be done on Horns Rev 2 wind farm. In the same project, the impact of a storm front passage over the system security, for the whole Danish system, and with the expected offshore wind power in 2020 will be investigated....... This paper will present the results of up-scaling the impact that a storm front passage will have on the Danish power system in 2020, given that the existing wind turbine storm controller is not replaced. The simulations are done with CorWind and the analysis is focusing on establishing a reference case...... and quantifying the balancing reserve requirements needed in order to keep the security of the power system....

  4. Critical power prediction by CATHARE2 of the OECD/NRC BFBT benchmark

    Energy Technology Data Exchange (ETDEWEB)

    Lutsanych, Sergii, E-mail: s.lutsanych@ing.unipi.it [San Piero a Grado Nuclear Research Group (GRNSPG), University of Pisa, Via Livornese 1291, 56122, San Piero a Grado, Pisa (Italy); Sabotinov, Luben, E-mail: luben.sabotinov@irsn.fr [Institut for Radiological Protection and Nuclear Safety (IRSN), 31 avenue de la Division Leclerc, 92262 Fontenay-aux-Roses (France); D’Auria, Francesco, E-mail: francesco.dauria@dimnp.unipi.it [San Piero a Grado Nuclear Research Group (GRNSPG), University of Pisa, Via Livornese 1291, 56122, San Piero a Grado, Pisa (Italy)

    2015-03-15

    Highlights: • We used CATHARE code to calculate the critical power exercises of the OECD/NRC BFBT benchmark. • We considered both steady-state and transient critical power tests of the benchmark. • We used both the 1D and 3D features of the CATHARE code to simulate the experiments. • Acceptable prediction of the critical power and its location in the bundle is obtained using appropriate modelling. - Abstract: This paper presents an application of the French best estimate thermal-hydraulic code CATHARE 2 to calculate the critical power and departure from nucleate boiling (DNB) exercises of the International OECD/NRC BWR Fuel Bundle Test (BFBT) benchmark. The assessment activity is performed comparing the code calculation results with available in the framework of the benchmark experimental data from Japanese Nuclear Power Engineering Corporation (NUPEC). Two-phase flow calculations on prediction of the critical power have been carried out both in steady state and transient cases, using one-dimensional and three-dimensional modelling. Results of the steady-state critical power tests calculation have shown the ability of CATHARE code to predict reasonably the critical power and its location, using appropriate modelling.

  5. FY 2004 Supplement to the President`s Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — ...This Supplement to the Presidents Budget for Fiscal Year (FY) 2004 summarizes the NITRD agencies coordinated research activities and FY 2004 plans, as required by...

  6. FY 2006 Supplement to the President`s Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — This Supplement to the Presidents Budget for Fiscal Year 2006 offers a brief technical outline of the 2006 budget request for the Networking and Information...

  7. The Implicit Leadership Theories of College and University Presidents.

    Science.gov (United States)

    Birnbaum, Robert

    1989-01-01

    The definitions that college and university presidents offer when they are asked to interpret the meaning of leadership are consistent with leadership theories emphasizing social power, directive influence, and role behavior. Greater attention to the implications of alternative theories focusing on social exchange might help presidents be more…

  8. HPCSA President 'embarrasses' delegation

    African Journals Online (AJOL)

    2006-02-01

    Feb 1, 2006 ... initially as CEO of the Johannesburg City. Council, then as Dean of Medicine at the. University of Cape Town for just over a term. He replaced Mbewu as the MRC's. Executive Director of Research (when. Mbewu was appointed overall MRC chief) after leaving UCT. Padayachee's appointment as President.

  9. Super thermal power plants and environment: a critical appraisal

    International Nuclear Information System (INIS)

    Sharma, A.K.

    1995-01-01

    This paper discusses the possible impact on the environment by the particulate matters, oxides of sulphur and nitrogen, trace metals and solid/liquid wastes, which are emitted during the combustion of coal in the super thermal power plants of National Thermal Power Corporation (NTPC). The coal consumed by these plants have sufficient sulphur content and ash. Of all the mineral in coal, pyrite is one of the most deleterious in combustion and a major source of oxide of sulphur pollution of the atmosphere. The impact of these on the terrestrial and aquatic environment in and around power plants and on region have been discussed. To arresting such contaminants, some remedial measures are suggested. (author). 14 refs., 1 fig., 3 tabs

  10. FY 2005 Supplement to the President`s Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — The Supplement to the President`s FY 2005 Budget reports on the FY 2004 research and development R and D activities and FY 2005 plans of the multiagency Networking...

  11. FY 2003 Supplement to the President`s Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — The Supplement to the President?s Budget, also known as the Blue Book, reports on the coordinated research priorities and activities of the NITRD agencies for FY...

  12. Analysis of Highly Wind Power Integrated Power System model performance during Critical Weather conditions

    DEFF Research Database (Denmark)

    Basit, Abdul; Hansen, Anca Daniela; Sørensen, Poul Ejnar

    2014-01-01

    , is provided by the hour-ahead power balancing model, i.e. Simulation power Balancing model (SimBa. The regulating power plan is prepared from day-ahead power production plan and hour-ahead wind power forecast. The wind power (forecasts and available) are provided by the Correlated Wind power fluctuations (Cor......Wind) model, where the wind turbine storm controllers are also implemented....

  13. Game theory and power theory : a critical comparison

    OpenAIRE

    Balzer, Wolfgang

    1992-01-01

    Social actions can be formulated in the frame of game theory or in a frame using, and foccussing on, the notion of power. The two frames are described and clarified. The comparison of theories from these two branches are evaluated from the point of theory of science.

  14. Sulfur balance in power plant plumes: a critical review

    Science.gov (United States)

    William E. Wilson

    1976-01-01

    Numerous attempts have been made to measure the rate of loss of SO2 in power plant plumes. If SO2 decreases more rapidly than an inert pollutant, the control measures necessary to meet SO2 standards would be eased. More recently, Swedish studies of acid rain, thought to be due to long range transport...

  15. Water: A critical resource in the thermoelectric power industry

    International Nuclear Information System (INIS)

    Feeley, Thomas J. III.; McNemar, Andrea; Skone, Timothy J.; Stiegel, Gary J. Jr.; Nemeth, Michael; Schimmoller, Brian; Murphy, James T.; Manfredo, Lynn

    2008-01-01

    Water availability represents a growing concern for meeting future power generation needs. In the United States, projected population growth rates, energy consumption patterns, and demand from competing water use sectors will increase pressure on power generators to reduce water use. Water availability and use also exhibit strong regional variations, complicating the nature of public policy and technological response. The US Department of Energy's (DOE) National Energy Technology Laboratory (NETL) is engaged in a research and development (R and D) program to reduce freshwater withdrawal (total quantity of water utilized) and consumption (portion of withdrawal not returned to the source) from existing and future thermoelectric power generating facilities. The Innovations for Existing Plants (IEP) Program is currently developing technologies in 5 categories of water management projects to reduce water use while minimizing the impacts of plant operations on water quality. This paper outlines the freshwater withdrawal and consumption rates for various thermoelectric power generating types and then estimates the potential benefits of IEP program technologies at both the national and regional levels in the year 2030. NETL is working to protect and conserve water resources while leveraging domestic fossil fuel resources, such as coal, to increase national energy security. (author)

  16. The Danish EU Presidency 2012

    DEFF Research Database (Denmark)

    Adler-Nissen, Rebecca; Hassing Nielsen, Julie; Sørensen, Catharina

    Even though the Lisbon Treaty has made the rotating Council Presidencies less politically relevant, the country holding the presidency during six months still has an important role to fill. For Denmark, holding the presidency during the first half of 2012, the ongoing crisis in the Eurozone has...

  17. Method of critical power prediction based on film flow model coupled with subchannel analysis

    International Nuclear Information System (INIS)

    Tomiyama, Akio; Yokomizo, Osamu; Yoshimoto, Yuichiro; Sugawara, Satoshi.

    1988-01-01

    A new method was developed to predict critical powers for a wide variety of BWR fuel bundle designs. This method couples subchannel analysis with a liquid film flow model, instead of taking the conventional way which couples subchannel analysis with critical heat flux correlations. Flow and quality distributions in a bundle are estimated by the subchannel analysis. Using these distributions, film flow rates along fuel rods are then calculated with the film flow model. Dryout is assumed to occur where one of the film flows disappears. This method is expected to give much better adaptability to variations in geometry, heat flux, flow rate and quality distributions than the conventional methods. In order to verify the method, critical power data under BWR conditions were analyzed. Measured and calculated critical powers agreed to within ±7%. Furthermore critical power data for a tight-latticed bundle obtained by LeTourneau et al. were compared with critical powers calculated by the present method and two conventional methods, CISE correlation and subchannel analysis coupled with the CISE correlation. It was confirmed that the present method can predict critical powers more accurately than the conventional methods. (author)

  18. President Ilves annab nõu president Obamale / Priit Pullerits

    Index Scriptorium Estoniae

    Pullerits, Priit, 1965-

    2009-01-01

    President Toomas Hendrik Ilves andis rahvusvahelises uudisteajakirjas Newsweek nõu USA presidendiks valitud Barack Obamale: Ilves, Toomas Hendrik. The Challenge in Europe. Newsweek : Special Edition Issues, 2008, dets., lk. 35. (http://www.newsweek.com/id/177415/output/print). Eesti president kutsub Ameerika Ühendriike üles kaitsma liberaalse demokraatia väärtusi ning rõhutab USA ja Euroopa koostöö tähtsust Venemaa ohjeldamisel. Ülevaade artiklist ilmunud ka: Eesti Elu 9. jaan. 2009, lk. 16, pealk.: President Ilves andis nõu president Obamale; Eesti Päevaleht (Stockholm) 21. jaan. 2009, lk. 2, pealk.: Eesti president kutsuti USA uuele presidendile nõu andma; Vaba Eesti Sõna 22. jaan. 2009, lk. 3, pealk.: President Ilves annab president Obamale nõu

  19. President Ilves visiidil Prantsusmaal

    Index Scriptorium Estoniae

    2008-01-01

    Ingl. k. lüh. lk. 9, pealk.: Ilves, Sarkozy meet. President Toomas Hendrik Ilves kohtus 7. aprillil 2008 Pariisis Elysée palees Prantsusmaa presidendi Nicolas Sarkozyga, kellega arutati NATO tippkohtumise tulemusi, Prantsusmaa Euroopa Liidu eesistumise prioriteete, Euroopa Liidu ühise energia- ja naabruspoliitika küsimusi. Eesti riigipea kohtus veel Prantsusmaa välispoliitika ajakirjanike klubiga (Association de la Presse Diplomatique), Prantsusmaa välisministri Bernard Kouchner'iga, Rahvusassamblee Euroopa Liidu delegatsiooni presidendi Pierre Lequillier'i ja senaator Denis Badré'ga, kes on ühtlasi Senati Prantsuse-Balti sõprusgrupi esimees. Visiidi lõpetas kohtumine Prantsusmaa Välispoliitika Instituudi (Institut Francais des Relations Internationales) presidendi Thierry de Montbrial'iga. Vabariigi President töövisiidil Pariisis 6.-8.04.2008

  20. NEURAL NETWORKS CONTROL OF THE HYBRID POWER UNIT BASED ON THE METHOD OF ADAPTIVE CRITICS

    Directory of Open Access Journals (Sweden)

    S. Serikov

    2012-01-01

    Full Text Available The formal statement of the optimization problem of hybrid vehicle power unit control is given. Its solving by neural networks method application on the basis of adaptive critic is considered.

  1. World Presidents Organization

    Science.gov (United States)

    2010-01-01

    Mississippi Gov. Haley Barbour speaks to members of the World Presidents' Organization during the group's visit to NASA's John C. Stennis Space Center on Jan. 26. WPO members from several states spent the day touring Stennis facilities and learning about the work of the nation's premier rocket engine testing site. Barbour visited with group members during a morning session in StenniSphere, the center's visitors center and museum.

  2. President Ilves Washingtonis

    Index Scriptorium Estoniae

    2010-01-01

    Ameerika Ühendriikides töövisiidil viibinud president Toomas Hendrik Ilves andis 18. märtsil 2010 Eesti saatkonnas Washingtonis Maarjamaa Risti IV klassi teenetemärgi USA diplomaadile Matthew J. Bryzale. 22. märtsil 2010 kõneles Eesti riigipea Harvardi Ülikoolis Euroopa ja Atlandi-ülesest julgeolekust 21. sajandil. Töövisiit Ameerika Ühendriikidesse 17.-23.03.2010

  3. A survival analysis on critical components of nuclear power plants

    International Nuclear Information System (INIS)

    Durbec, V.; Pitner, P.; Riffard, T.

    1995-06-01

    Some tubes of heat exchangers of nuclear power plants may be affected by Primary Water Stress Corrosion Cracking (PWSCC) in highly stressed areas. These defects can shorten the lifetime of the component and lead to its replacement. In order to reduce the risk of cracking, a preventive remedial operation called shot peening was applied on the French reactors between 1985 and 1988. To assess and investigate the effects of shot peening, a statistical analysis was carried on the tube degradation results obtained from in service inspection that are regularly conducted using non destructive tests. The statistical method used is based on the Cox proportional hazards model, a powerful tool in the analysis of survival data, implemented in PROC PHRED recently available in SAS/STAT. This technique has a number of major advantages including the ability to deal with censored failure times data and with the complication of time-dependant co-variables. The paper focus on the modelling and a presentation of the results given by SAS. They provide estimate of how the relative risk of degradation changes after peening and indicate for which values of the prognostic factors analyzed the treatment is likely to be most beneficial. (authors). 2 refs., 3 figs., 6 tabs

  4. The strength of the rotating Presidency is that it keeps the Presidency weak

    DEFF Research Database (Denmark)

    Beach, Derek

    One of the most important justifications for the adoption of the Treaty of Lisbon was that the introduction of a fixed President of the European Council would result in a more efficient Europe. During the negotiations serious attempts were made to strengthen the Presidency at the Council of Minis...... fashion to all, and finds, formulates and brokers acceptable compromises. Acceptable is not the same as being neutral, and an instrumental leader can exploit its position for private gains, but it cannot be too blatant as it is in more hegemonic forms of leadership....... of Ministers level, including proposals to allow the European Council President to chair the General Affairs Council. Underlying these reform efforts is the argument that the Presidency as an institution is unable to supply effective leadership, and in particular that smaller member states are manifestly...... that while the powers possessed by the Presidency are relatively weak, it is the very weakness of the Presidency that makes it an effective leader. Drawing upon recent advances in the study of informal norms in the Council and leadership theories, this paper first discusses what types of leadership...

  5. Boiling transition phenomenon in BWR fuel assemblies effect of fuel spacer shape on critical power

    International Nuclear Information System (INIS)

    Yamamoto, Yasushi; Morooka, Shin-ichi; Mitsutake, Toru; Yokobori, Seiichi; Kimura, Jiro.

    1996-01-01

    A thorough understanding of the thermal-hydraulic phenomena near fuel spacer is necessary for the accurate prediction of the critical power of BWR fuel assemblies, and is thus essential for effective developments of a new BWR fuel assembly. The main purpose of this study is to develop an accurate method for predicting the effect of spacer shapes on critical power. Tests have been conducted under actual BWR operating conditions, using an annulus flow channel consisting of a heated rod and circular-tube channel, and BWR simulated 4x4 rod bundles with heater rods unheated just upsteam of spacer. The effect of spacer shapes on critical power was predicted analytically based on the droplet deposition rate estimation. The droplet deposition rate for different spacer shapes was calculated using a single-phase flow model. The prediction results were compared with the test results for the annulus flow channel using ring-type spacers. Analytical results of critical power agreed with measured critical power from point of the effects of changes in the rod-spacer clearance and the spacer thickness on critical power. (author)

  6. Critical review of thermoelectrics in modern power generation applications

    Directory of Open Access Journals (Sweden)

    Saqr Khalid M.

    2009-01-01

    Full Text Available The thermoelectric complementary effects have been discovered in the nineteenth century. However, their role in engineering applications has been very limited until the first half of the twentieth century, the beginning of space exploration era. Radioisotope thermoelectric generators have been the actual motive for the research community to develop efficient, reliable and advanced thermoelectrics. The efficiency of thermoelectric materials has been doubled several times during the past three decades. Nevertheless, there are numerous challenges to be resolved in order to develop thermoelectric systems for our modern applications. This paper discusses the recent advances in thermoelectric power systems and sheds the light on the main problematic concerns which confront contemporary research efforts in that field.

  7. Critical Leadership Pedagogy: Engaging Power, Identity, and Culture in Leadership Education for College Students of Color

    Science.gov (United States)

    Pendakur, Vijay; Furr, Sara C.

    2016-01-01

    This chapter focuses on how the application of critical pedagogy to leadership education allows for issues of identity, power, and culture to shape the process of leadership learning. Examples from the authors' work with various populations of students of color are used to illustrate critical leadership pedagogy.

  8. A study on methodologies for assessing safety critical network's risk impact on Nuclear Power Plant

    International Nuclear Information System (INIS)

    Lim, T. J.; Lee, H. J.; Park, S. K.; Seo, S. J.

    2006-08-01

    The objectives of this project is to investigate and study existing reliability analysis techniques for communication networks in order to develop reliability analysis models for Nuclear Power Plant's safety-critical networks. It is necessary to make a comprehensive survey of current methodologies for communication network reliability. Major outputs of the first year study are design characteristics of safety-critical communication networks, efficient algorithms for quantifying reliability of communication networks, and preliminary models for assessing reliability of safety-critical communication networks

  9. New design procedure development of future reactor critical power estimation. (1) Practical design-by-analysis method for BWR critical power design correlation

    International Nuclear Information System (INIS)

    Yamamoto, Yasushi; Mitsutake, Toru

    2007-01-01

    For present BWR fuels, the full mock-up thermal-hydraulic test, such as the critical power measurement test, pressure drop measurement test and so on, has been needed. However, the full mock-up test required the high costs and large-scale test facility. At present, there are only a few test facilities to perform the full mock-up thermal-hydraulic test in the world. Moreover, for future BWR, the bundle size tends to be larger, because of reducing the plant construction costs and minimizing the routine check period. For instance, AB1600, improved ABWR, was proposed from Toshiba, whose bundle size was 1.2 times larger than the conventional BWR fuel size. It is too expensive and far from realistic to perform the full mock-up thermal-hydraulic test for such a large size fuel bundle. The new design procedure is required to realize the large scale bundle design development, especially for the future reactor. Therefore, the new design procedure, Practical Design-by-Analysis (PDBA) method, has been developed. This new procedure consists of the partial mock-up test and numerical analysis. At present, the subchannel analysis method based on three-fluid two-phase flow model only is a realistic choice. Firstly, the partial mock-up test is performed, for instance, the 1/4 partial mock-up bundle. Then, the first-step critical power correlation coefficients are evaluated with the measured data. The input data, such as the spacer effect model coefficient, on the subchannel analysis are also estimated with the data. Next, the radial power effect on the critical power of the full-bundle size was estimated with the subchannel analysis. Finally, the critical power correlation is modified by the subchannel analysis results. In the present study, the critical power correlation of the conventional 8x8 BWR fuel was developed with the PDBA method by 4x4 partial mock-up tests and the subchannel analysis code. The accuracy of the estimated critical power was 3.8%. The several themes remain to

  10. Low-power critical facilities: their role in the nuclear renaissance

    International Nuclear Information System (INIS)

    Didsbury, R.

    2011-01-01

    This paper discusses the role of low power critical facilities and their role in the nuclear renaissance. It outline the role of human capital in some detail. sufficient conditions for the renaissance are that nuclear power is safe, sustainable, economical and proliferation resistant.

  11. Subchannel analysis of a critical power test, using simulated BWR 8x8 fuel assembly

    International Nuclear Information System (INIS)

    Mitsutake, T.; Terasaka, H.; Yoshimura, K.; Oishi, M.; Inoue, A.; Akiyama, M.

    1990-01-01

    Critical power predictions have been compared with the critical power test data obtained in simulated BWR 8x8 fuel rod assemblies. Two analytical methods for the critical power prediction in rod assemblies are used in the prediction, which are the subchannel analysis using the COBRA/BWR subchannel computer code with empirical critical heat flux (CHF) correlations and the liquid film dryout estimation using the CRIPP-3F 'multi-fluid' computer code. Improvements in both the analytical methods were made for spacer effect modeling, though they were specific for application to the current BWR rod assembly type. In general a reasonable agreement was obtained, though comparisons, between the prediction and the obtained test data. (orig.)

  12. Determination of the lowest critical power levels of the Dalat Nuclear Research Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Huy, Ngo Quang [Centre for Nuclear Technique Application, Ho Chi Minh City (Viet Nam); Thong, Ha Van; Long, Vu Hai; Binh, Do Quang; Nghiem, Huynh Ton; Tuan, Nguyen Minh; Vien, Luong Ba; Vinh, Le Vinh [Nuclear Research Inst., Da Lat (Viet Nam)

    1994-10-01

    This paper presents the experimental methods for determining critical states of the Dalat Nuclear Research Reactor containing an extraneous neutron source induced by gamma ray reactions on beryllium in the reactor. The lowest critical power levels are measured at various moments after the reactor is shut down following 100 hours of its continuous operation. Th power levels vary from (0.5-1.2) x 10{sup -4} of P{sub n}, i.e. (25-60)W to (1.1-1.6) x 10{sup -5} of P{sub n}, i.e. (5.5-8)W at corresponding times of 4 days to 13 days after the reactor is shut down. However the critical power must be chosen greater than 500 W to sustain the steady criticality of the reactor for a long time. (author). 3 refs. 4 figs. 1 tab.

  13. Borders amidst power, State and mass media, from a critical theory standpoint

    Directory of Open Access Journals (Sweden)

    Manuel Ortiz Marín

    2006-07-01

    Full Text Available A conception of the power, from the glance of the Critical Theory that it allows to understand the woven complex that links the relations of power to most of the human activities. This paper also approaches to the State as a regulating element of the different forces from institutional character, that they operate in its interior like structures of power and the function as that the massive mass media in the complexity of the modern societies act.

  14. Developments regarding the Bragg rule for stopping power and critical examination of its application to water

    International Nuclear Information System (INIS)

    Kamaratos, E.

    1983-01-01

    A critical comparison is made of various experimental findings regarding the Bragg additivity rule for stopping power. It appears that deviations from the Bragg additivity rule reported a long time ago and ascribed to chemical binding effects and phase effects are real, despite even recent statements of the contrary. Nevertheless, when the Bragg rule is applied to water, critical examination of very recent experimental results for the stopping power in the gaseous state of water, hydrogen and oxygen in this work suggest that the reported deviations from the Bragg additivity rule for the stopping power of gaseous water may be the result of experimental error. (orig.)

  15. Critical power for self-focusing of optical beam in absorbing media

    Science.gov (United States)

    Qi, Pengfei; Zhang, Lin; Lin, Lie; Zhang, Nan; Wang, Yan; Liu, Weiwei

    2018-04-01

    Self-focusing effects are of central importance for most nonlinear optical effects. The critical power for self-focusing is commonly investigated theoretically without considering a material’s absorption. Although this is practicable for various materials, investigating the critical power for self-focusing in media with non-negligible absorption is also necessary, because this is the situation usually met in practice. In this paper, the simple analytical expressions describing the relationships among incident power, absorption coefficient and focal position are provided by a simple physical model based on the Fermat principle. Expressions for the absorption dependent critical power are also derived; these can play important roles in experimental and applied research on self-focusing-related nonlinear optical phenomena in absorbing media. Numerical results, based on the nonlinear wave equation—and which can predict experimental results perfectly—are also presented, and agree quantitatively with the analytical results proposed in this paper.

  16. Three Presidents in one day

    CERN Multimedia

    2009-01-01

    Cristina Fernández de Kirchner, President of Argentina, in the ATLAS cavern with Minister of Science and Technology, Lino Barañao. The President of Mozambique, Armando Guebuza, being shown a crystal from the CMS calorimeter by Jim Virdee, CMS spokesperson, and Felicitas Pauss, CERN Coordinator for External Relations. The President of Poland, Lech Kaczyński, and the First Lady visited the CMS experiment. It was a busy day for many at CERN on 15 June with visits from the Presidents of Argentina, Poland and Mozambique all in one day! The three Presidents were in Geneva for a summit organized by the International Labour Organization (ILO), and couldn’t resist the opportunity to see CERN before heading home. Cristina Fernández de Kirchner, President of Argentina, visited the ATLAS cavern with Minister of Science and Technology, Lino Barañao. While at CERN Kirchner signed an agreement be...

  17. Offshore Variability in Critical Weather Conditions in Large-Scale Wind Based Danish Power System

    DEFF Research Database (Denmark)

    Cutululis, Nicolaos Antonio; Litong-Palima, Marisciel; Sørensen, Poul Ejnar

    2013-01-01

    of the variability for the 2020 Danish power system, one can see that in the worst case, up to 1500 MW of power can be lost in 30 minutes. We present results showing how this issue is partially solved by the new High Wind Storm Controller presented by Siemens in the TWENTIES project.......Offshore wind power has a significant development potential, especially in North Europe. The geographical concentration of offshore wind power leads to increased variability and in the case of critical weather conditions it may lead to sudden and considerable loss of production. In this context......, the chances of losing several GW of wind power due to critical weather conditions in a very short time period could potentially jeopardize the whole system’s reliability and stability. Forecasting such events is not trivial and the results so far are not encouraging. When assessing the impact...

  18. Presidents' words - Michel Goossens

    CERN Multimedia

    Staff Association

    2015-01-01

    Michel Goossens Already at the beginning of 1955, just a few months after the creation of CERN, the members of the Organization's staff who then numbered less than 200, realized that they had to organize themselves into a corporate body to ensure a formal representation with Management and Member States. The Staff Association was born. As the 27th President of the Staff Association since its inception 60 years ago my task is highly interesting and rewarding, with plenty of responsibility, yet not always simple. Indeed, chosen by one’s peers as primus inter pares, the president is like the conductor of an orchestra, who must first convince his musicians to study the score together, before playing it in harmony. Of course, in my position I can rely on the solid foundations laid by my 26 predecessors, as well as the enthusiasm, loyalty, continuous efforts and perseverance of a core of dedicated collaborators, the elected delegates to the Staff Council. The strength of the Staff Associati...

  19. Respect, hr president / Kaupo Meiel

    Index Scriptorium Estoniae

    Meiel, Kaupo, 1975-

    2007-01-01

    President Toomas Hendrik Ilves kohtus 9.11.2007 Pärnu Sütevaka humanitaargümnaasiumi õpilaste ja kohalike kaitseliitlastega. Presidendile esines Sütevaka gümnaasiumi poiste ansambel Bedwetters. Ansambliliikmete soovile vastu tulles lasi president ennast koos nendega pildistada. President pidas gümnaasiumi abiturientidele ühiskonnaõpetuse tunni, kõneldes vabaduse ja vastutuse seostest. Pärnu linnavalitsusega president oma mitteametlikul töövisiidil kokku ei puutunud, eelistades suhelda otse riigi kodanikega

  20. An Analysis of Decentralized Demand Response as Frequency Control Support under CriticalWind Power Oscillations

    Directory of Open Access Journals (Sweden)

    Jorge Villena

    2015-11-01

    Full Text Available In power systems with high wind energy penetration, the conjunction of wind power fluctuations and power system inertia reduction can lead to large frequency excursions, where the operating reserves of conventional power generation may be insufficient to restore the power balance. With the aim of evaluating the demand-side contribution to frequency control, a complete process to determine critical wind oscillations in power systems with high wind penetration is discussed and described in this paper. This process implies thousands of wind power series simulations, which have been carried out through a validated offshore wind farm model. A large number of different conditions have been taken into account, such as frequency dead bands, the percentages of controllable demand and seasonal factor influence on controllable loads. Relevant results and statistics are also included in the paper.

  1. Universal Critical Power for Nonlinear Schroedinger Equations with a Symmetric Double Well Potential

    International Nuclear Information System (INIS)

    Sacchetti, Andrea

    2009-01-01

    Here we consider stationary states for nonlinear Schroedinger equations in any spatial dimension n with symmetric double well potentials. These states may bifurcate as the strength of the nonlinear term increases and we observe two different pictures depending on the value of the nonlinearity power: a supercritical pitchfork bifurcation, and a subcritical pitchfork bifurcation with two asymmetric branches occurring as the result of saddle-node bifurcations. We show that in the semiclassical limit, or for a large barrier between the two wells, the first kind of bifurcation always occurs when the nonlinearity power is less than a critical value; in contrast, when the nonlinearity power is larger than such a critical value then we always observe the second scenario. The remarkable fact is that such a critical value is a universal constant in the sense that it does not depend on the shape of the double well potential and on the dimension n.

  2. President Johnson's statement

    International Nuclear Information System (INIS)

    1964-01-01

    Fill text: On the tenth anniversary of President Eisenhower's proposal. President Johnson reaffirmed support for that policy. He said: Ten years ago today. President Eisenhower appeared before the General Assembly of the United Nations and made the following pledge: 'The coming months will be fraught with fateful decisions. to the making of these fateful decisions the United States pledges before you - and therefore before the world - its determination to help solve the fearful atomic dilemma - to devote its entire heart and mind to find the way by which the miraculous inventiveness of man shall not be dedicated to his death, but consecrated to his life.' In his address President Eisenhower also proposed the establishment of an international atomic The International Atomic Energy Agency became an institutional reality in 1957, when the first General Conference met with 56 members. It now has 83 members, and a further five nations will become members as soon as statutory formalities are completed. The activity on the part of the Agency during these six years has gradually expanded, although it has fallen short of earlier hopes in certain areas. Time and patience, however, have been required and 1963 foreshadows further progress. Ten years after the proposal of the idea, scientists and statesmen can look back and be gratified that a contribution has been made to international understanding. Scientists and statesmen can look ahead, hopefully, to a future of increasing activity in this special agency to develop co-operation and agreement in the field of atomic energy agency which would help channel into peaceful pursuits the scientific and material resources which had been created primarily for military purposes, and noted that such an agency could serve as a vehicle to advance the use of the atom for the peaceful pursuits of mankind. The International Atomic Energy Agency has assumed an essential and natural role in the international development of atomic energy. In

  3. Analysis of critical paths for schedule control of nuclear power projects

    International Nuclear Information System (INIS)

    Shi Liangmin; Ma Limin; Fan Kai

    2005-01-01

    Study on the critical paths for the schedule control of nuclear power projects has been performed for reactor M310, based on the experiences from Daya Bay project and Ling Ao project. The study shows that the critical paths for the nuclear power project are from NI civil work, NI erection, commissioning of single systems directly serving the CFT to the joint-test. For NI civil work, the critical path is the main civil work of the reactor building, pre-stressing, handover of rooms for important areas, and key CW-erection interfaces; there are four critical paths for NI erection; For startup, two stages can be identified: commissioning of 16 single systems directly serving the CFT and joint-test. (authors)

  4. Experience using individually supplied heater rods in critical power testing of advanced BWR fuel

    Energy Technology Data Exchange (ETDEWEB)

    Majed, M.; Morback, G.; Wiman, P. [ABB Atom AB, Vasteras (Sweden)] [and others

    1995-09-01

    The ABB Atom FRIGG loop located in Vasteras Sweden has during the last six years given a large experience of critical power measurements for BWR fuel designs using indirectly heated rods with individual power supply. The loop was built in the sixties and designed for maximum 100 bar pressure. Testing up to the mid eighties was performed with directly heated rods using a 9 MW, 80 kA power supply. Providing test data to develop critical power correlations for BWR fuel assemblies requires testing with many radial power distributions over the full range of hydraulic conditions. Indirectly heated rods give large advantages for the testing procedure, particularly convenient for variation of individual rod power. A test method being used at Stern Laboratories (formerly Westinghouse Canada) since the early sixties, allows one fuel assembly to simulate all required radial power distributions. This technique requires reliable indirectly heated rods with independently controlled power supplies and uses insulated electric fuel rod simulators with built-in instrumentation. The FRIGG loop was adapted to this system in 1987. A 4MW power supply with 10 individual units was then installed, and has since been used for testing 24 and 25 rod bundles simulating one subbundle of SVEA-96/100 type fuel assemblies. The experience with the system is very good, as being presented, and it is selected also for a planned upgrading of the facility to 15 MW.

  5. Effect of caffeine intake on critical power model parameters determined on a cycle ergometer

    Directory of Open Access Journals (Sweden)

    Marcus Vinicius Machado

    2010-01-01

    Full Text Available The aim of this study was to evaluate the effect of caffeine intake on critical power model parameters determined on a cycle ergometer. Eight male subjects participated in this study. A double-blind protocol consisting of the intake of pure caffeine (6 mg/kg or placebo (maltodextrin 60 min before testing was used. Subjects were submitted to four constant-load tests on a cycle ergometer. These tests were conducted randomly in the caffeine and placebo groups [checar] at intensities of 80, 90, 100 and 110% maximum power at a rate of 70 rpm until exhaustion to determine the critical power. As a criterion for stopping the test was adopted any rate fall without recovery by more than five seconds. The critical power and anaerobic work capacity were obtained by nonlinear regression and fitting of the curve to a hyperbolic power-time model. The Shapiro-Wilk test and paired Student t-test were used for statistical analysis. No significant differences in critical power were observed between the caffeine and placebo groups (192.9 ± 31.3 vs 197.7 ± 29.4 W, respectively. The anaerobic work capacity was significantly higher in the caffeine group (20.1 ± 5.2 vs 16.3 ± 4.2 W, p< 0.01. A high association (r2 was observed between the caffeine and placebo conditions (0.98 ± 0.02 and 0.99 ± 0.0, respectively. We conclude that caffeine intake did not improve critical power performance but increased anaerobic work capacity by influencing performance at loads of higher intensity and shorter duration.

  6. Critical power experiment with a tight-lattice 37-rod bundle

    International Nuclear Information System (INIS)

    Kureta, Masatoshi; Tamai, Hidesada; Ohnuki, Akira; Sato, Takashi; Liu, Wei; Akimoto, Hajime

    2006-01-01

    Since most of critical power or CHF data have been collected in tube, annulus, or BWR geometries under BWR flow conditions, critical power data for highly tight and triangular lattice bundles under low mass velocity are indispensable for thermal-hydraulic design of Reduced-Moderation Water Reactor. Large-scale thermal-hydraulic experiments which use a basic 37-rod bundle test section (rod diameter: 13.0 mm, gap width between rods: 1.3 mm) were therefore carried out in this study within range of 2-9 MPa in pressure and 150-1,000 kg/(m 2 ·s) in mass velocity. Fundamental characteristics of boiling transition were investigated through effects of flow parameter on critical power and those of rod number. It was confirmed that the fundamental characteristics in 37-rod bundle are similar to those in 7-rod bundle and in case of the BWR geometry. The results of the transverse non-uniform power distribution test and subchannel analysis suggest that the critical power becomes higher when the transverse local quality distribution closes to uniform. (author)

  7. The origin of power-law distributions in self-organized criticality

    International Nuclear Information System (INIS)

    Yang, C B

    2004-01-01

    The origin of power-law distributions in self-organized criticality is investigated by treating the variation of the number of active sites in the system as a stochastic process. An avalanche is then regarded as a first-return random-walk process in a one-dimensional lattice. Power-law distributions of the lifetime and spatial size are found when the random walk is unbiased with equal probability to move in opposite directions. This shows that power-law distributions in self-organized criticality may be caused by the balance of competitive interactions. At the mean time, the mean spatial size for avalanches with the same lifetime is found to increase in a power law with the lifetime. (letter to the editor)

  8. A multi-criteria decision making system for damage assessment of critical components in power plants

    International Nuclear Information System (INIS)

    Jovanovic, A.; Auerkari, P.; Brear, J.M.

    1996-01-01

    A multi-criteria decision making tool for engineering applications has been developed in the European project BE5935. The tool has been developed and applied in the area of power plants, primarily for the decisions regarding the inspection and maintenance planning in the area of power plants. Practical application of the methodology and of the software is shown here for the damage assessment of critical components. (authors)

  9. Final report for the field-reversed configuration power plant critical-issue scoping study

    Energy Technology Data Exchange (ETDEWEB)

    Santarius, John F.; Mogahed, Elsayed A.; Emmert, Gilbert A.; Khater, Hesham Y.; Nguyen, Canh N.; Ryzhkov, Sergei V.; Stubna, Michael D.; Steinhauer, Loren C.; Miley, George H.

    2001-03-01

    This report describes research in which a team from the Universities of Wisconsin, Washington, and Illinois performed a scoping study of critical issues for field-reversed configuration (FRC) power plants. The key tasks for this research were (1) systems analysis of deuterium-tritium (D-T) FRC fusion power plants, and (2) conceptual design of the blanket and shield module for an FRC fusion core.

  10. Strategic Marketing: The President's Perspective.

    Science.gov (United States)

    Pappas, Richard J.; Shaink, M. Richard

    1994-01-01

    Provides a step-by-step guide to developing a college marketing plan. Identifying a target market and determining an appropriate mix of promotional strategies are considered key to the process. Highlights the college president's role in the marketing process, indicating that, although the president is the chief marketer, all employees must be…

  11. A heuristic application of critical power ratio to pressurized water reactor core design

    International Nuclear Information System (INIS)

    Ahn, Seung Hoon; Jeun, Gyoo Dong

    2002-01-01

    The approach for evaluating the critical heat flux (CHF) margin using the departure from nucleate boiling ratio (DNBR) concept has been widely applied to PWR core design, while DNBR in this approach does not indicate appropriately the CHF margin in terms of the attainable power margin-to-CHF against a reactor core condition. The CHF power margin must be calculated by increasing power until the minimum DNBR reaches a DNBR limit. The Critical Power Ratio (CPR), defined as the ratio of the predicted CHF power to the operating power, is considered more reasonable for indicating the CHF margin and can be calculated by a CPR correlation based on the heat balance of a test bundle. This approach yields directly the CHF power margin, but the calculated CPR must be corrected to compensate for many local effects of the actual core, which are not considered in the CHF test and analysis. In this paper, correction of the calculated CPR is made so that it may become equal to the DNB overpower margin. Exemplary calculations showed that the correction tends to be increased as power distribution is more distorted, but are not unduly large

  12. Introduction: the early Duterte presidency in the Philippines

    OpenAIRE

    Thompson, Mark R.

    2016-01-01

    After only a little over a half year in power, as of this writing, Rodrigo’s R. Duterte presidency already represents a sea change in Philippine politics. Despite the personal popularity of Benigno “Noynoy” S. Aquino III (who had the highest opinion poll ratings among post-Marcos presidents), Duterte has quickly replaced a “liberal reformist” political order with its emphasis on civil liberties, if limited political participation, with an illiberal “law and order” regime.

  13. Critical node treatment in the analytic function expansion method for Pin Power Reconstruction

    International Nuclear Information System (INIS)

    Gao, Z.; Xu, Y.; Downar, T.

    2013-01-01

    Pin Power Reconstruction (PPR) was implemented in PARCS using the eight term analytic function expansion method (AFEN). This method has been demonstrated to be both accurate and efficient. However, similar to all the methods involving analytic functions, such as the analytic node method (ANM) and AFEN for nodal solution, the use of AFEN for PPR also has potential numerical issue with critical nodes. The conventional analytic functions are trigonometric or hyperbolic sine or cosine functions with an angular frequency proportional to buckling. For a critic al node the buckling is zero and the sine functions becomes zero, and the cosine function become unity. In this case, the eight terms of the analytic functions are no longer distinguishable from ea ch other which makes their corresponding coefficients can no longer be determined uniquely. The mode flux distribution of critical node can be linear while the conventional analytic functions can only express a uniform distribution. If there is critical or near critical node in a plane, the reconstructed pin power distribution is often be shown negative or very large values using the conventional method. In this paper, we propose a new method to avoid the numerical problem wit h critical nodes which uses modified trigonometric or hyperbolic sine functions which are the ratio of trigonometric or hyperbolic sine and its angular frequency. If there are no critical or near critical nodes present, the new pin power reconstruction method with modified analytic functions are equivalent to the conventional analytic functions. The new method is demonstrated using the L336C5 benchmark problem. (authors)

  14. Critical node treatment in the analytic function expansion method for Pin Power Reconstruction

    Energy Technology Data Exchange (ETDEWEB)

    Gao, Z. [Rice University, MS 318, 6100 Main Street, Houston, TX 77005 (United States); Xu, Y. [Argonne National Laboratory, 9700 South Case Ave., Argonne, IL 60439 (United States); Downar, T. [Department of Nuclear Engineering, University of Michigan, 2355 Bonisteel blvd., Ann Arbor, MI 48109 (United States)

    2013-07-01

    Pin Power Reconstruction (PPR) was implemented in PARCS using the eight term analytic function expansion method (AFEN). This method has been demonstrated to be both accurate and efficient. However, similar to all the methods involving analytic functions, such as the analytic node method (ANM) and AFEN for nodal solution, the use of AFEN for PPR also has potential numerical issue with critical nodes. The conventional analytic functions are trigonometric or hyperbolic sine or cosine functions with an angular frequency proportional to buckling. For a critic al node the buckling is zero and the sine functions becomes zero, and the cosine function become unity. In this case, the eight terms of the analytic functions are no longer distinguishable from ea ch other which makes their corresponding coefficients can no longer be determined uniquely. The mode flux distribution of critical node can be linear while the conventional analytic functions can only express a uniform distribution. If there is critical or near critical node in a plane, the reconstructed pin power distribution is often be shown negative or very large values using the conventional method. In this paper, we propose a new method to avoid the numerical problem wit h critical nodes which uses modified trigonometric or hyperbolic sine functions which are the ratio of trigonometric or hyperbolic sine and its angular frequency. If there are no critical or near critical nodes present, the new pin power reconstruction method with modified analytic functions are equivalent to the conventional analytic functions. The new method is demonstrated using the L336C5 benchmark problem. (authors)

  15. A critical discussion of null hypothesis significance testing and statistical power analysis within psychological research

    DEFF Research Database (Denmark)

    Jones, Allan; Sommerlund, Bo

    2007-01-01

    The uses of null hypothesis significance testing (NHST) and statistical power analysis within psychological research are critically discussed. The article looks at the problems of relying solely on NHST when dealing with small and large sample sizes. The use of power-analysis in estimating...... the potential error introduced by small and large samples is advocated. Power analysis is not recommended as a replacement to NHST but as an additional source of information about the phenomena under investigation. Moreover, the importance of conceptual analysis in relation to statistical analysis of hypothesis...

  16. Analysis to the criticality the storage and containers to the Juragua Nuclear Power Plant Fuel

    International Nuclear Information System (INIS)

    Guerra Valdes, R.

    1998-01-01

    Presently analysis the criticality the warehouses and containers the nuclear fuels in Juragua nuclear power plant the property multiplicity determined in these system and it is verified that for the geometry and operation conditions defined in the design as well as in accidents situations, the arrangement the fuel stays subcritical with an appropriate margin

  17. Theoretical, experimental and numerical diagnose of critical power point of thermoelectric generators

    DEFF Research Database (Denmark)

    Chen, Min; Gao, Xin

    2014-01-01

    of the critical power point in the series and parallel TEM arrays. Secondly, experiments of a series-parallel hybrid interconnected TEG are presented to clearly quantify the theoretical analyses. Finally, the hierarchical simulation, based on the SPICE (simulation program with integrated circuit emphasis...

  18. President tuli "koju" : President Toomas H. Ilves NY Eesti Majas

    Index Scriptorium Estoniae

    2007-01-01

    President Toomas Hendrik Ilvese ja proua Evelin Ilvese külaskäigust New Yorgi Eesti Majja 23. septembril 2007. Tervitussõnavõttudega esinesid New Yorgi Eesti Haridusseltsi esimees dr. Toomas Sõrra, New Yorgi Eesti Kooli juhataja Karin Kärner. Kirjaliku tervituse saatis presidendile tema omaaegne skaudijuht Emu Saarniit. President T.H. Ilves meenutas oma sõnavõtus, et esimest korda külastas ta New Yorgi Eesti Maja 50 aastat tagasi. Pärast ametlike sõnavõttude lõppu said kõik kohaletulnud isiklikult presidenti tervitada. Vabariigi President töövisiidil Ameerika Ühendriikides 20.-26.09.2007

  19. Recovering the Power Inside: A Qualitative Study of Critical Reading in an Iranian University

    Directory of Open Access Journals (Sweden)

    Sue-san Ghahremani Ghajar

    2011-07-01

    Full Text Available A fundamental goal of critical literacy approaches is to bring a change and empower students as critical agents and subjects of decision making. Students are expected to do more than simply accumulate information; they are encouraged to challenge their ‘taken for granted’ belief structures and transform themselves as well as their immediate social environment. In this article, we present a qualitative enquiry in a university reading course based on critical literacy. We explored how learners reflected on their individual/community and word/world concerns through critical understanding of texts and how they challenged and shattered their ‘taken for granted’ beliefs and started to transform into critical agents of voice and position. The data consists of 400 concept maps, called webs, and personal journals by fifty undergraduate English literature students at an Iranian University, as well as oral and written interviews. The data was qualitatively analyzed in search of themes that could illustrate students’ early thinking structures and their empowerment and transformations into subjects of decisions. The study revealed that, through webbing words/worlds and critically challenging texts, students took the opportunity to approach the knowledge and information presented to them analytically and critically. On this basis, we discuss how students were able to gain the power of critiquing, freeing their thoughts, finding and expressing their voice and position, discovering personal meanings in texts and contexts, cooperating and participating, and understanding learning for meaning through the critical act of reading.

  20. Vulnerability analysis and critical areas identification of the power systems under terrorist attacks

    Science.gov (United States)

    Wang, Shuliang; Zhang, Jianhua; Zhao, Mingwei; Min, Xu

    2017-05-01

    This paper takes central China power grid (CCPG) as an example, and analyzes the vulnerability of the power systems under terrorist attacks. To simulate the intelligence of terrorist attacks, a method of critical attack area identification according to community structures is introduced. Meanwhile, three types of vulnerability models and the corresponding vulnerability metrics are given for comparative analysis. On this basis, influence of terrorist attacks on different critical areas is studied. Identifying the vulnerability of different critical areas will be conducted. At the same time, vulnerabilities of critical areas under different tolerance parameters and different vulnerability models are acquired and compared. Results show that only a few number of vertex disruptions may cause some critical areas collapse completely, they can generate great performance losses the whole systems. Further more, the variation of vulnerability values under different scenarios is very large. Critical areas which can cause greater damage under terrorist attacks should be given priority of protection to reduce vulnerability. The proposed method can be applied to analyze the vulnerability of other infrastructure systems, they can help decision makers search mitigation action and optimum protection strategy.

  1. Critical power characteristics in 37-rod tight lattice bundles under transient conditions

    International Nuclear Information System (INIS)

    Liu, Wei; Kureta, Masatoshi; Tamai, Hidesada; Ohnuki, Akira; Akimoto, Hajime

    2007-01-01

    Critical power characteristics in the postulated abnormal transient processes that may be possibly met in the operation of Innovative Water Reactor for Flexible Fuel Cycle (FLWR) were investigated for the design of the FLWR core. Transient Boiling Transition (BT) tests were carried out using two sets of 37-rod tight lattice rod bundles (rod diameter: 13 mm; rod clearance: 1.3 mm or 1.0 mm) at Japan Atomic Energy Agency (JAEA) under the conditions covering the FLWR operating condition (P ex =7.2 MPa, T in =556 K) for mass velocity G=400-800 kg/(m 2 s). For the postulated power increase and flow decrease transients, no obvious change of the critical power against the steady one was observed. The traditional quasi-steady characteristic was confirmed to be working for the postulated power increase and flow decrease transients. The experiments were analyzed with TRAC-BF1 code, where the JAEA newest critical power correlation for the tight lattice rod bundles was implemented for the BT judgment. The TRAC-BF1 code showed good prediction for the occurrence or the non occurrence of the BT and for the exact BT starting time. The tranditional quasi-steady state prediction of the BT in transient process was confirmed to be applicable for the postulated abnormal transient processes in the tight lattice rod bundles. (author)

  2. On Origin of Power-Law Distributions in Self-Organized Criticality from Random Walk Treatment

    International Nuclear Information System (INIS)

    Cao Xiaofeng; Deng Zongwei; Yang Chunbin

    2008-01-01

    The origin of power-law distributions in self-organized criticality is investigated by treating the variation of the number of active sites in the system as a stochastic process. An avalanche is then regarded as a first-return random walk process in a one-dimensional lattice. We assume that the variation of the number of active sites has three possibilities in each update: to increase by 1 with probability f 1 , to decrease by 1 with probability f 2 , or remain unchanged with probability 1-f 1 -f 2 . This mimics the dynamics in the system. Power-law distributions of the lifetime are found when the random walk is unbiased with equal probability to move in opposite directions. This shows that power-law distributions in self-organized criticality may be caused by the balance of competitive interactions.

  3. Recommendations relating to safety-critical real-time software in nuclear power plants

    International Nuclear Information System (INIS)

    1992-01-01

    The Advisory Committee on Nuclear Safety (ACNS) has reviewed safety issues associated with the software for the digital computers in the safety shutdown systems for the Darlington NGS. From this review the ACNS has developed four recommendations for safety-critical real-time software in nuclear power plants. These recommendations cover: the completion of the present efforts to develop an overall standard and sub-tier standards for safety-critical real-time software; the preparation of schedules and lists of responsibilities for this development; the concentration of AECB efforts on ensuring the scrutability of safety-critical real-time software; and, the collection of data on reliability and causes of failure (error) of safety-critical real-time software systems and on the probability and causes of common-mode failures (errors). (9 refs.)

  4. Navigating Critical Theory and Postmodernism: Social Justice and Therapist Power in Family Therapy.

    Science.gov (United States)

    D'Arrigo-Patrick, Justine; Hoff, Chris; Knudson-Martin, Carmen; Tuttle, Amy

    2017-09-01

    The family therapy field encourages commitment to diversity and social justice, but offers varying ideas about how to attentively consider these issues. Critical informed models advocate activism, whereas postmodern informed models encourage multiple perspectives. It is often not clear how activism and an emphasis on multiple perspectives connect, engendering the sense that critical and postmodern practices may be disparate. To understand how therapists negotiate these perspectives in practice, this qualitative grounded theory analysis drew on interviews with 11 therapists, each known for their work from both critical and postmodern perspectives. We found that these therapists generally engage in a set of shared constructionist practices while also demonstrating two distinct forms of activism: activism through countering and activism through collaborating. Ultimately, decisions made about how to navigate critical and postmodern influences were connected to how therapists viewed ethics and the ways they were comfortable using their therapeutic power. The findings illustrate practice strategies through which therapists apply each approach. © 2016 Family Process Institute.

  5. FY 2002 Supplement to the President`s Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — Today, at the beginning of a new millennium, networking and information technologies are transforming our world, generating unprecedented American prosperity, and...

  6. FY 2013 Supplement to the President`s Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — The Networking and Information Technology Research and Development (NITRD) Program consists of a group of Federal agencies working together to research and develop a...

  7. Study on expansion power recovery in CO2 trans-critical cycle

    International Nuclear Information System (INIS)

    Tian Hua; Ma Yitai; Li Minxia; Wang Wei

    2010-01-01

    Due to the ozone depletion potential and global warming potential of CFCs and HCFCs, CO 2 is considered as most potential alternative refrigerant. However, there are serious throttle losses and low system efficiency to CO 2 trans-critical cycle because of its low critical temperature and high operating pressure. The aim of this paper is to design an expander to recover expansion power in CO 2 trans-critical cycle. The theoretical analysis and calculation show that 14-23% of input power of compressor can be recovered. A prototype of rolling piston expander is designed and manufactured and its test facility is established. The test facility consists of CO 2 trans-critical cycle, the expander, the chilling water system and the cooling water system. The experimental results show that the recovery ratio and expander efficiency are affected by rotational speed, inlet temperature and mass flow of expander. The highest recovery ratio can reach to 0.145, which means 14.5% of input power of compressor can be recovered. The expander efficiency can reach to 45%.

  8. American Presidents and Their Attitudes, Beliefs, and Actions Surrounding Education and Multiculturalism. A Series of Research Studies in Educational Policy. Sixth Installment: Examining Presidents Ronald Reagan, George H. W. Bush, and William Jefferson Clinton. Research

    Science.gov (United States)

    Baptiste, H. Prentice; Orvosh-Kamenski, Heidi; Kamenski, Christopher J.

    2005-01-01

    This article focuses on the recent presidencies of Ronald Reagan, George H. W. Bush, and William Jefferson Clinton and is the sixth installment in a series that examines how presidents, through their office of power, have impacted U.S. citizens by their actions and policies. By viewing the presidents through a multicultural lense we can more…

  9. ANAEROBIC CAPACITY MAY NOT BE DETERMINED BY CRITICAL POWER MODEL IN ELITE TABLE TENNIS PLAYERS

    Directory of Open Access Journals (Sweden)

    Alessandro M. Zagatto

    2008-03-01

    Full Text Available The aim of the present study was to verify the applicability of anaerobic work capacity (AWC determined from the critical power model in elite table tennis players. Eight male international level table tennis players participated in the study. The tests undertaken were: 1 A critical frequency test used to determinate the anaerobic work capacity; 2 Wingate tests were performed using leg and arm ergometers. AWC corresponded to 99.5 ± 29.1 table tennis balls. AWC was not related to peak (r = -0.25, mean (r = -0.02, relative peak (r = -0.49 or relative mean power (r = 0.01, nor fatigue index (r = -0.52 (Wingate leg ergometer. Similar correlations for peak (r = -0.34, mean (r = -0.04, relative peak (r = -0.49, relative mean power (r = -0.14 and peak blood lactate concentration (r = -0.08 were determined in the Wingate arm ergometer test. Based on these results the AWC determined by a modified critical power test was not a good index for measurement of anaerobic capacity in table tennis players

  10. Critical success factors simplified implementing the powerful drivers of dramatic business improvement

    CERN Document Server

    Howell, Marvin T

    2010-01-01

    Critical-to-success factors (CSFs) have become essential elements to strategic planning and no business can achieve consistent success without effectively adopting them. To take full advantage of CSFs, however, an organization must first understand what they are and how they can be used to drive organizational initiatives and processes. Critical Success Factors Simplified: Implementing the Powerful Drivers of Dramatic Business Improvement provides a concise manual on CSFs that will teach you how to identify and select the right CSFs, measure their impact, and adjust them as needed to reach your goals.

  11. Coretran/Vipre assembly critical power assessment against Nupec BWR experiments

    Energy Technology Data Exchange (ETDEWEB)

    Aounallah, Y. [Paul Scherrer Inst. (PSI), Villigen (Switzerland)

    2001-07-01

    This study has been performed, in the framework of the STARS project, to assess CORETRAN-01/VIPRE-02 code capability to predict critical heat flux conditions for BWR fuel assemblies. The assessment is based on comparisons of the code results with the NUPEC steady-state critical power measurements on full-scale assemblies tested under a range of flow conditions. Two assembly types were considered, the standard BWR 8 x 8 and the so-called ''high-burnup'' assembly, similar to GE-10. Code modelling options that have a significant impact on the results have been identified, along with code limitations. (author)

  12. Coretran/Vipre assembly critical power assessment against Nupec BWR experiments

    International Nuclear Information System (INIS)

    Aounallah, Y.

    2001-01-01

    This study has been performed, in the framework of the STARS project, to assess CORETRAN-01/VIPRE-02 code capability to predict critical heat flux conditions for BWR fuel assemblies. The assessment is based on comparisons of the code results with the NUPEC steady-state critical power measurements on full-scale assemblies tested under a range of flow conditions. Two assembly types were considered, the standard BWR 8 x 8 and the so-called ''high-burnup'' assembly, similar to GE-10. Code modelling options that have a significant impact on the results have been identified, along with code limitations. (author)

  13. Vice Presidents' Foreword

    Science.gov (United States)

    is dependent not only on attracting high quality papers, but on the preservation of high standards in the overall editorial process. This requires, inter alia, a sympathetic managing editor to assist non-native English speakers in Europe and beyond to communicate their research findings with good clarity. We are highly fortunate that Dr j S G (Jim) McCulloch, who has had such a major impact on the success of the Journal of Hydrology, has agreed to take on the onerous task of launching and managing HESS. He will be supported by a panel of Scientific Editors and by an Editorial Board, who will advise him. We are indebted to Dr McCulloch and his editorial office team for their dedicated efforts in bringing this first issue to fruition. We also thank the authors, who have entrusted their papers to HESS, the reviewers who have responded so promptly and Arne Richter, the Secretary-General of EGS, for his continual support and enthusiasm for this venture. Finally, and most important of all, we appeal to you, and all members of the scientific community, to support HESS by * taking out a personal subscription; * arranging for an institutional subscription; * contributing your best papers; * helping with the peer review process. By rallying around HESS and giving it the priority which will ensure that high quality is achieved from the outset, we can, as a community, eventually match the achievements of WRR. You and future generations of European hydrologists will be the beneficiaries. Philip O'Kane Enda O'Connell EGS Vice-President Past-EGS Vice-President (Hydrological Sciences) (Hydrological Sciences)

  14. President Ilves kohtus Max Jakobsoniga

    Index Scriptorium Estoniae

    2008-01-01

    President Toomas Hendrik Ilves ja Soome tuntud diplomaat Max Jakobson arutasid 16. septembril 2008 Tallinnas toimunud kohtumisel julgeolekuolukorda Euroopas pärast Venemaa-Gruusia sõda, Euroopa Liidu suhteid Venemaaga ja NATO tulevikku

  15. Field-Reversed Configuration Power Plant Critical-Issue Scoping Study

    Energy Technology Data Exchange (ETDEWEB)

    Santarius, J. F.; Mogahed, E. A.; Emmert, G. A.; Khater, H. Y.; Nguyen, C. N.; Ryzhkov, S. V.; Stubna, M. D.

    2000-03-31

    A team from the Universities of Wisconsin, Washington, and Illinois performed an engineering scoping study of critical issues for field-reversed configuration (FRC) power plants. The key tasks for this research were (1) systems analysis for deuterium-tritium (D-T) FRC fusion power plants, and (2) conceptual design of the blanket and shield module for an FRC fusion core. For the engineering conceptual design of the fusion core, the project team focused on intermediate-term technology. For example, one decision was to use steele structure. The FRC systems analysis led to a fusion power plant with attractive features including modest size, cylindrical symmetry, good thermal efficiency (52%), relatively easy maintenance, and a high ratio of electric power to fusion core mass, indicating that it would have favorable economics.

  16. Field-Reversed Configuration Power Plant Critical-Issue Scoping Study

    International Nuclear Information System (INIS)

    Santarius, J. F.; Mogahed, E. A.; Emmert, G. A.; Khater, H. Y.; Nguyen, C. N.; Ryzhkov, S. V.; Stubna, M. D.

    2000-01-01

    A team from the Universities of Wisconsin, Washington, and Illinois performed an engineering scoping study of critical issues for field-reversed configuration (FRC) power plants. The key tasks for this research were (1) systems analysis for deuterium-tritium (D-T) FRC fusion power plants, and (2) conceptual design of the blanket and shield module for an FRC fusion core. For the engineering conceptual design of the fusion core, the project team focused on intermediate-term technology. For example, one decision was to use steele structure. The FRC systems analysis led to a fusion power plant with attractive features including modest size, cylindrical symmetry, good thermal efficiency (52%), relatively easy maintenance, and a high ratio of electric power to fusion core mass, indicating that it would have favorable economics

  17. Influence of “whirlwind” mixing grids on the critical power of WWER fuel assembly

    International Nuclear Information System (INIS)

    Selivanov, Yu.F.; Pomet'ko, R.S.; Volkov, S.E.

    2014-01-01

    The problem of optimizing the number and placement of lattices in different types assemblies is discussed. The effect of the amount of mixing lattices and their locations in assemblies on the conditions of occurrence of boiling crisis in the fuel assembly on its critical power (power of assembly in case of boiling crisis) is studied. Experiments were carried out with the use of freon as a coolant. It is recommended simultaneous use in the assembly of lattices of “whirlwind” type, well-intensifying heat exchange, and cell lattices of “pass” type (or lattices with deflectors) affecting on moving flow, provided the optimal location of lattices in the assembly [ru

  18. Diagnosis and on-line displacement monitoring for critical pipe of fossil power plant

    Energy Technology Data Exchange (ETDEWEB)

    Heo, J. S.; Hyun, J. S. [Korea Electric Power Corporation, Seoul (Korea, Republic of); Heo, J. R.; Lee, S. K.; Cho, S. Y. [Korea South-East Power Co., Ltd., Seoul (Korea, Republic of)

    2009-07-01

    High temperature steam pipes of fossil power plant are subject to a severe thermal range and usually operates well into the creep range. Cyclic operation of the plant subjects the piping system to mechanical and thermal fatigue mechanisms and poor or malfunctional support assemblies can impose massive loads or stress onto the piping system. In order to prevent the serious damage and failure of the critical pipe system, various inspection methods such as visual inspection, computational analysis and on-line piping displacement monitoring were developed. 3-Dimensional piping displacement monitoring system was developed with using he aluminum alloy rod and rotary encoder type sensors, this system was installed and operated on the 'Y' fossil power plant successfully. It is expected that this study will contribute to the safety of piping system, which could minimize stress and extend the actual life of critical piping.

  19. Technology of Inspection and Real-time Displacement Monitoring on Critical Pipe for Power Plant

    Energy Technology Data Exchange (ETDEWEB)

    Hyun, Jung Seob; Heo, Jae Sil [Korea Electric Power Research Institute, Daejeon (Korea, Republic of); Cho, Sun Young [KLES, Daejeon (Korea, Republic of); Heo, Jeong Yeol; Lee, Seong Kee [Korea South-East Power Co., Seoul (Korea, Republic of)

    2009-10-15

    High temperature steam pipes of thermal power plant are subject to a severe thermal range and usually operates well into the creep range. Cyclic operation of the plant subjects the piping system to mechanical and thermal fatigue damages. Also, poor or malfunctional supports can impose massive loads or stress onto the piping system. In order to prevent the serious damage and failure of the critical piping system, various inspection methods such as visual inspection, computational analysis and on-line piping displacement monitoring were developed. 3-dimensional piping displacement monitoring system was developed with using the aluminum alloy rod and rotary encoder sensors, this system was installed and operated on the high temperature steam piping of 'Y' thermal power plant successfully. It is expected that this study will contribute to the safety of piping system, which could minimize stress and extend the actual life of critical piping.

  20. From equity to power: Critical Success Factors for Twinning between midwives, a Delphi study.

    Science.gov (United States)

    Cadée, Franka; Nieuwenhuijze, Marianne J; Lagro-Janssen, Antoine L M; de Vries, Raymond

    2018-02-28

    To gain consensus for Critical Success Factors associated with Twinning in Midwifery. International publications identify midwifery as important for improving maternity care worldwide. Midwifery is a team effort where midwives play a key role. Yet their power to take on this role is often lacking. Twinning has garnered potential to develop power in professionals, however, its success varies because implementation is not always optimal. Critical Success Factors have demonstrated positive results in the managerial context and can be helpful to build effective Twinning relationships. We approached 56 midwife Twinning experts from 19 countries to participate in three Delphi rounds between 2016 - 2017. In round 1, experts gave input through an open ended questionnaire and this was analysed to formulate Critical Success Factors statements that were scored on a 1-7 Likert scale aiming to gain consensus in rounds 2 and 3. These statements were operationalized for practical use such as a check list in planning, monitoring and evaluation in the field. Thirty-three experts from 14 countries took part in all three Delphi rounds, producing 58 initial statements. This resulted in 25 Critical Success Factors covering issues of management, communication, commitment and values, most focus on equity. The Critical Success Factors formulated represent the necessary ingredients for successful Twinning by providing a practical implementation framework and promote further research into the effect of Twinning. Findings show that making equity explicit in Twinning may contribute towards the power of midwives to take on their identified key role. © 2018 The Authors. Journal of Advanced Nursing Published by John Wiley & Sons Ltd.

  1. The Davidson Method as an alternative to power iterations for criticality calculations

    International Nuclear Information System (INIS)

    Subramanian, C.; Van Criekingen, S.; Heuveline, V.; Nataf, F.; Have, P.

    2011-01-01

    The Davidson method is implemented within the neutron transport core solver parafish to solve k-eigenvalue criticality transport problems. The parafish solver is based on domain decomposition, uses spherical harmonics (P_N method) for angular discretization, and nonconforming finite elements for spatial discretization. The Davidson method is compared to the traditional power iteration method in that context. Encouraging numerical results are obtained with both sequential and parallel calculations. (author)

  2. Prediction of critical flow rates through power-operated relief valves

    International Nuclear Information System (INIS)

    Abdollahian, D.; Singh, A.

    1983-01-01

    Existing single-phase and two-phase critical flow models are used to predict the flow rates through the power-operated relief valves tested in the EPRI Safety and Relief Valve test program. For liquid upstream conditions, Homogeneous Equilibrium Model, Moody, Henry-Fauske and Burnell two-phase critical flow models are used for comparison with data. Under steam upstream conditions, the flow rates are predicted either by the single-phase isentropic equations or the Homogeneous Equilibrium Model, depending on the thermodynamic condition of the fluid at the choking plane. The results of the comparisons are used to specify discharge coefficients for different valves under steam and liquid upstream conditions and evaluate the existing approximate critical flow relations for a wide range of subcooled water and steam conditions

  3. Efficient Algorithm and Architecture of Critical-Band Transform for Low-Power Speech Applications

    Directory of Open Access Journals (Sweden)

    Gan Woon-Seng

    2007-01-01

    Full Text Available An efficient algorithm and its corresponding VLSI architecture for the critical-band transform (CBT are developed to approximate the critical-band filtering of the human ear. The CBT consists of a constant-bandwidth transform in the lower frequency range and a Brown constant- transform (CQT in the higher frequency range. The corresponding VLSI architecture is proposed to achieve significant power efficiency by reducing the computational complexity, using pipeline and parallel processing, and applying the supply voltage scaling technique. A 21-band Bark scale CBT processor with a sampling rate of 16 kHz is designed and simulated. Simulation results verify its suitability for performing short-time spectral analysis on speech. It has a better fitting on the human ear critical-band analysis, significantly fewer computations, and therefore is more energy-efficient than other methods. With a 0.35 m CMOS technology, it calculates a 160-point speech in 4.99 milliseconds at 234 kHz. The power dissipation is 15.6 W at 1.1 V. It achieves 82.1 power reduction as compared to a benchmark 256-point FFT processor.

  4. Vice Presidents' Foreword

    Directory of Open Access Journals (Sweden)

    1997-01-01

    of a new journal is dependent not only on attracting high quality papers, but on the preservation of high standards in the overall editorial process. This requires, inter alia, a sympathetic managing editor to assist non-native English speakers in Europe and beyond to communicate their research findings with good clarity. We are highly fortunate that Dr j S G (Jim McCulloch, who has had such a major impact on the success of the Journal of Hydrology, has agreed to take on the onerous task of launching and managing HESS. He will be supported by a panel of Scientific Editors and by an Editorial Board, who will advise him. We are indebted to Dr McCulloch and his editorial office team for their dedicated efforts in bringing this first issue to fruition. We also thank the authors, who have entrusted their papers to HESS, the reviewers who have responded so promptly and Arne Richter, the Secretary-General of  EGS, for his continual support and enthusiasm for this venture. Finally, and most important of all, we appeal to you, and all members of the scientific community, to support HESS by * taking out a personal subscription; * arranging for an institutional subscription; * contributing your best papers; * helping with the peer review process. By rallying around HESS and giving it the priority which will ensure that high quality is achieved from the outset, we can, as a community, eventually match the achievements of WRR. You and future generations of European hydrologists will be the beneficiaries. Philip O'Kane                                                                  Enda O'Connell EGS Vice-President                                                       Past-EGS Vice-President (Hydrological Sciences                                                (Hydrological Sciences

  5. Critical heat flux phenomena in flow boiling during step wise and ramp wise power transients

    International Nuclear Information System (INIS)

    Celata, G.P.; Cumo, M.; D'Annibale, F.; Farello, G.E.; Abou Said, S.

    1987-01-01

    The present paper deals with the results of an experimental investigation of the forced flow critical heat flux during power transients in a vertically heated channel. Experiments were carried out with a Refrigerant-12 1oop employing a circular test section which was electrically and uniformly heated. The power transients were performed with the step-wise and ramp-wise increase of the power to the test section. The test parameters included several values of the initial power (before the transient) and the final power (at the end of the transient) in the case of step-wise transients and the slope of the ramp in the case of ramp-wise transients. The pressure and specific mass flow rate, which were kept constant during the power transient,were varied from 1.2 to 2.7 MPa and 850 to 1500 Kg/sm 2 , respectively. Correlations of the experimental data for the time-to-crisis in terms of the independent parameters of the system are also proposed and verified for different values of pressure,mass flow rate, and inlet subcooling

  6. The case of Ghana's president's special initiative on oil palm (PSI-oil palm)

    OpenAIRE

    Asante, Elizabeth A.

    2012-01-01

    How can a programme fail when it is initiated and instituted by the most powerful politico-administrative elites of a country? Launched under the auspices of the President and Government of Ghana in 2001 and monitored by an Inter-Ministerial Facilitation Team, programmes coming under the President's Special Initiatives (PSI) have grounded to a halt by the end of 2007. This study analyses the politics of policy formulation and implementation with regard to the President Special Initiative Oil ...

  7. Criticality safety analysis of TK-13 cask in Bushehr nuclear power plant

    Energy Technology Data Exchange (ETDEWEB)

    Mohammadi, Ashgar; Omidvari, Nima [Iran Radioactive Waste Management Company, Tehran (Iran, Islamic Republic of); Hassanzadeh, Mostafa [Nuclear Science and Technology Research Institute, Tehran (Iran, Islamic Republic of)

    2017-12-15

    Spent fuel production is one of the main problems of nuclear power plants that should be managed properly considering the strategy of each country. Today, in most of nuclear power owner countries, the interim storage has been selected as the temporary solution of spent fuel management because of absence of deep geological repositories and no tendency for reprocessing. On the other side, considering the merits of storage in dual purpose casks based on dry storage, this method was chosen for interim storage. By taking into account that the only operating reactor of Iran is of Water-Water Energetic Reactor (WWER)-1000 type, proposed TK-13 cask by Russia which is the manufacturer of these types of reactors has been considered. In this study, the calculation of basket holding spent fuel assembly criticality of this cask has been analyzed for two modes of fresh and spent fuel by ORIGEN2.1 and MCNPX2.6 nuclear codes. The criterion of the nuclear criticality safety for effective multiplication factor (k{sub eff}) should be 0.95 and 0.98 for many ordinary and accident conditions, respectively. Therefore, the results show that a cylindrical basket with 66 cm diameter and 28 cm pitch with internal holding basket made of borated steel with 0.1% borate and steel free from borate would meet the criticality of cask, respectively.

  8. Criticality safety analysis of TK-13 cask in Bushehr nuclear power plant

    International Nuclear Information System (INIS)

    Mohammadi, Ashgar; Omidvari, Nima; Hassanzadeh, Mostafa

    2017-01-01

    Spent fuel production is one of the main problems of nuclear power plants that should be managed properly considering the strategy of each country. Today, in most of nuclear power owner countries, the interim storage has been selected as the temporary solution of spent fuel management because of absence of deep geological repositories and no tendency for reprocessing. On the other side, considering the merits of storage in dual purpose casks based on dry storage, this method was chosen for interim storage. By taking into account that the only operating reactor of Iran is of Water-Water Energetic Reactor (WWER)-1000 type, proposed TK-13 cask by Russia which is the manufacturer of these types of reactors has been considered. In this study, the calculation of basket holding spent fuel assembly criticality of this cask has been analyzed for two modes of fresh and spent fuel by ORIGEN2.1 and MCNPX2.6 nuclear codes. The criterion of the nuclear criticality safety for effective multiplication factor (k eff ) should be 0.95 and 0.98 for many ordinary and accident conditions, respectively. Therefore, the results show that a cylindrical basket with 66 cm diameter and 28 cm pitch with internal holding basket made of borated steel with 0.1% borate and steel free from borate would meet the criticality of cask, respectively.

  9. New approaches to provide ride-through for critical loads in electric power distribution systems

    Science.gov (United States)

    Montero-Hernandez, Oscar C.

    2001-07-01

    The extensive use of electronic circuits has enabled modernization, automation, miniaturization, high quality, low cost, and other achievements regarding electric loads in the last decades. However, modern electronic circuits and systems are extremely sensitive to disturbances from the electric power supply. In fact, the rate at which these disturbances happen is considerable as has been documented in recent years. In response to the power quality concerns presented previously, this dissertation is proposing new approaches to provide ride-through for critical loads during voltage disturbances with emphasis on voltage sags. In this dissertation, a new approach based on an AC-DC-AC system is proposed to provide ride-through for critical loads connected in buildings and/or an industrial system. In this approach, a three-phase IGBT inverter with a built in Dc-link voltage regulator is suitably controlled along with static by-pass switches to provide continuous power to critical loads. During a disturbance, the input utility source is disconnected and the power from the inverter is connected to the load. The remaining voltage in the AC supply is converted to DC and compensated before being applied to the inverter and the load. After detecting normal utility conditions, power from the utility is restored to the critical load. In order to achieve an extended ride-through capability a second approach is introduced. In this case, the Dc-link voltage regulator is performed by a DC-DC Buck-Boost converter. This new approach has the capability to mitigate voltage variations below and above the nominal value. In the third approach presented in this dissertation, a three-phase AC to AC boost converter is investigated. This converter provides a boosting action for the utility input voltages, right before they are applied to the load. The proposed Pulse Width Modulation (PWM) control strategy ensures independent control of each phase and compensates for both single-phase or poly

  10. Comparison of Critical Power and W' Derived From 2 or 3 Maximal Tests.

    Science.gov (United States)

    Simpson, Len Parker; Kordi, Mehdi

    2017-07-01

    Typically, accessing the asymptote (critical power; CP) and curvature constant (W') parameters of the hyperbolic power-duration relationship requires multiple constant-power exhaustive-exercise trials spread over several visits. However, more recently single-visit protocols and personal power meters have been used. This study investigated the practicality of using a 2-trial, single-visit protocol in providing reliable CP and W' estimates. Eight trained cyclists underwent 3- and 12-min maximal-exercise trials in a single session to derive (2-trial) CP and W' estimates. On a separate occasion a 5-min trial was performed, providing a 3rd trial to calculate (3-trial) CP and W'. There were no differences in CP (283 ± 66 vs 282 ± 65 W) or W' (18.72 ± 6.21 vs 18.27 ± 6.29 kJ) obtained from either the 2-trial or 3-trial method, respectively. After 2 familiarization sessions (completing a 3- and a 12-min trial on both occasions), both CP and W' remained reliable over additional separate measurements. The current study demonstrates that after 2 familiarization sessions, reliable CP and W' parameters can be obtained from trained cyclists using only 2 maximal-exercise trials. These results offer practitioners a practical, time-efficient solution for incorporating power-duration testing into applied athlete support.

  11. NITRD Program Supplement to the President`s Budget - FY 2017

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — This document is a supplement to the President`s 2017 Budget Request to Congress. It describes the activities planned for FY2017 by the Federal agencies...

  12. NITRD Program Supplement to the President`s Budget - FY 2018

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — This document is a supplement to the President`s 2018 Budget Request to Congress. It describes the activities planned for FY2018 by the Federal agencies...

  13. Influence of dispersion stretching of ultrashort UV laser pulse on the critical power for self-focusing

    Science.gov (United States)

    Ionin, A. A.; Mokrousova, D. V.; Piterimov, D. A.; Seleznev, L. V.; Sinitsyn, D. V.; Sunchugasheva, E. S.

    2018-04-01

    The critical power for self-focusing in air for ultrashort ultraviolet laser pulses, stretched due to dispersion from 90 to 730 fs, was experimentally measured. It was shown that the pulse duration enhancement due to its propagation in condensed media leads to an almost linear decrease in the critical power for self-focusing. It was also observed that when the pulse peak power exceeds the critical one, the maximum of linear plasma distribution along the ultraviolet laser filament does not shift in the direction opposite to the laser pulse propagation, as observed for infrared laser filaments, but remains at the geometrical focus.

  14. On the exploration of effect of critical beam power on the propagation of Gaussian laser beam in collisionless magnetized plasma

    Science.gov (United States)

    Urunkar, T. U.; Valkunde, A. T.; Vhanmore, B. D.; Gavade, K. M.; Patil, S. D.; Takale, M. V.

    2018-05-01

    It is quite known that critical power of the laser plays vital role in the propagation of Gaussian laser beam in collisionless plasma. The nonlinearity in dielectric constant considered herein is due to the ponderomotive force. In the present analysis, the interval of critical beam power has been explored to sustain the competition between diffraction and self-focusing of Gaussian laser beam during propagation in collisionless magnetized plasma. Differential equation for beam-width parameter has been established by using WKB and paraxial approximations under parabolic equation approach. The effect of critical power on the propagation of Gaussian laser beam has been presented graphically and discussed.

  15. Power laws and self-organized criticality in theory and nature

    Energy Technology Data Exchange (ETDEWEB)

    Marković, Dimitrije, E-mail: markovic@cbs.mpg.de [Institute for Theoretical Physics, Goethe University Frankfurt (Germany); Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig (Germany); Biomagnetic Center, Hans Berger Clinic for Neurology, University Hospital Jena, Jena (Germany); Gros, Claudius, E-mail: gros@itp.uni-frankfurt.de [Institute for Theoretical Physics, Goethe University Frankfurt (Germany)

    2014-03-01

    Power laws and distributions with heavy tails are common features of many complex systems. Examples are the distribution of earthquake magnitudes, solar flare intensities and the sizes of neuronal avalanches. Previously, researchers surmised that a single general concept may act as an underlying generative mechanism, with the theory of self organized criticality being a weighty contender. The power-law scaling observed in the primary statistical analysis is an important, but by far not the only feature characterizing experimental data. The scaling function, the distribution of energy fluctuations, the distribution of inter-event waiting times, and other higher order spatial and temporal correlations, have seen increased consideration over the last years. Leading to realization that basic models, like the original sandpile model, are often insufficient to adequately describe the complexity of real-world systems with power-law distribution. Consequently, a substantial amount of effort has gone into developing new and extended models and, hitherto, three classes of models have emerged. The first line of models is based on a separation between the time scales of an external drive and an internal dissipation, and includes the original sandpile model and its extensions, like the dissipative earthquake model. Within this approach the steady state is close to criticality in terms of an absorbing phase transition. The second line of models is based on external drives and internal dynamics competing on similar time scales and includes the coherent noise model, which has a non-critical steady state characterized by heavy-tailed distributions. The third line of models proposes a non-critical self-organizing state, being guided by an optimization principle, such as the concept of highly optimized tolerance. We present a comparative overview regarding distinct modeling approaches together with a discussion of their potential relevance as underlying generative models for real

  16. Power laws and self-organized criticality in theory and nature

    International Nuclear Information System (INIS)

    Marković, Dimitrije; Gros, Claudius

    2014-01-01

    Power laws and distributions with heavy tails are common features of many complex systems. Examples are the distribution of earthquake magnitudes, solar flare intensities and the sizes of neuronal avalanches. Previously, researchers surmised that a single general concept may act as an underlying generative mechanism, with the theory of self organized criticality being a weighty contender. The power-law scaling observed in the primary statistical analysis is an important, but by far not the only feature characterizing experimental data. The scaling function, the distribution of energy fluctuations, the distribution of inter-event waiting times, and other higher order spatial and temporal correlations, have seen increased consideration over the last years. Leading to realization that basic models, like the original sandpile model, are often insufficient to adequately describe the complexity of real-world systems with power-law distribution. Consequently, a substantial amount of effort has gone into developing new and extended models and, hitherto, three classes of models have emerged. The first line of models is based on a separation between the time scales of an external drive and an internal dissipation, and includes the original sandpile model and its extensions, like the dissipative earthquake model. Within this approach the steady state is close to criticality in terms of an absorbing phase transition. The second line of models is based on external drives and internal dynamics competing on similar time scales and includes the coherent noise model, which has a non-critical steady state characterized by heavy-tailed distributions. The third line of models proposes a non-critical self-organizing state, being guided by an optimization principle, such as the concept of highly optimized tolerance. We present a comparative overview regarding distinct modeling approaches together with a discussion of their potential relevance as underlying generative models for real

  17. Structural characteristics of a graphite moderated critical assembly for a Zero Power reactor at IEA (Brazil)

    International Nuclear Information System (INIS)

    Almeida Ferreira, A.C. de; Hukai, R.Y.

    1975-01-01

    The structural characteristics of a graphite moderated core of a critical assembly to be installed in the Zero Power Reactor of IEA have been defined. These characteristics are the graphite block dimensions, the number and dimensions of the holes in the graphite, the pitch, the dimensions of the sticks of fuel and graphite to be inserted in the holes, and the mechanical reproducibility of the system. The composition of the fuel and moderator sticks were also defined. The main boundary conditions were the range of the relation C/U and C/TH used in commercial HTGR and the neutronics homogeneity

  18. Operation and utilization of low power research reactor critical facility for Advanced Heavy Water Reactor (AHWR)

    International Nuclear Information System (INIS)

    De, S.K.; Karhadkar, C.G.

    2017-01-01

    An Advanced Heavy Water Reactor (AHWR) has been designed and developed for maximum power generation from thorium considering large reserves of thorium. The design envisages using 54 pin MOX cluster with different enrichment of "2"3"3U and Pu in Thoria fuel pins. Theoretical models developed to neutron transport and the geometrical details of the reactor including all reactivity devices involve approximations in modelling, resulting in uncertainties. With a view to minimize these uncertainties, a low power research reactor Critical Facility was built in which cold clean fuel can be arranged in a desired and precise geometry. Different experiments conducted in this facility greatly contribute to understand and validate the physics design parameters

  19. Critical experiments in support of the CNPS [Compact Nuclear Power Source] program

    International Nuclear Information System (INIS)

    Hansen, G.E.; Audas, J.H.; Martin, E.R.; Pederson, R.A.; Spriggs, G.D.; White, R.H.

    1988-01-01

    Zero-power static and kinetic measurements have been made on a mock-up of the Compact Nuclear Power Source (CNPS), a graphite moderated, graphite reflected, U(19.9% 235 U) fueled reactor design. Critical configurations were tracked from a first clean configuration (184 most central fuel channels filled and all control rod and heat pipe channels empty) to a fully loaded configuration (all 492 fuel channels filled, core-length stainless steel pipe in the twelve heat-pipe channels, and approximately half-core-length boron carbide in the outer 4 control rod channels. Reactor physics data such as material worths and neutron lifetime are presented only for the clean and fully loaded configurations

  20. The Authority of the President to Impound Funds Appropriated by Congress.

    Science.gov (United States)

    Adams, James R.

    During fiscal year 1973, President Nixon ordered the impoundment of about 18 billion dollars in Federal funds for domestic programs. A large portion of that amount was used to slash federal funding for education programs. The entire impoundment controversy revolves around the doctrine of separation of powers. Insofar as the President has refused…

  1. The Council Presidency and legislative leadership: The case of occupational health and safety

    NARCIS (Netherlands)

    Warntjen, Andreas

    2009-01-01

    Many international institutions feature a leadership office to organize its decision-making process. In the case of the Council of the European Union, the rotating Council Presidency exercises the role of a process manager and enjoys proposal power. This function might allow the Presidency to steer

  2. Electron versus proton accelerator driven sub-critical system performance using TRIGA reactors at power

    International Nuclear Information System (INIS)

    Carta, M.; Burgio, N.; D'Angelo, A.; Santagata, A.; Petrovich, C.; Schikorr, M.; Beller, D.; Felice, L. S.; Imel, G.; Salvatores, M.

    2006-01-01

    This paper provides a comparison of the performance of an electron accelerator-driven experiment, under discussion within the Reactor Accelerator Coupling Experiments (RACE) Project, being conducted within the U.S. Dept. of Energy's Advanced Fuel Cycle Initiative (AFCI), and of the proton-driven experiment TRADE (TRIGA Accelerator Driven Experiment) originally planned at ENEA-Casaccia in Italy. Both experiments foresee the coupling to sub-critical TRIGA core configurations, and are aimed to investigate the relevant kinetic and dynamic accelerator-driven systems (ADS) core behavior characteristics in the presence of thermal reactivity feedback effects. TRADE was based on the coupling of an upgraded proton cyclotron, producing neutrons via spallation reactions on a tantalum (Ta) target, with the core driven at a maximum power around 200 kW. RACE is based on the coupling of an Electron Linac accelerator, producing neutrons via photoneutron reactions on a tungsten-copper (W-Cu) or uranium (U) target, with the core driven at a maximum power around 50 kW. The paper is focused on analysis of expected dynamic power response of the RACE core following reactivity and/or source transients. TRADE and RACE target-core power coupling coefficients are compared and discussed. (authors)

  3. Unavailability of critical SCADA communication links interconnecting a power grid and a Telco network

    International Nuclear Information System (INIS)

    Bobbio, A.; Bonanni, G.; Ciancamerla, E.; Clemente, R.; Iacomini, A.; Minichino, M.; Scarlatti, A.; Terruggia, R.; Zendri, E.

    2010-01-01

    The availability of power supply to power grid customers depends upon the availability of services of supervision, control and data acquisition (SCADA) system, which constitutes the nervous system of a power grid. In turn, SCADA services depend on the availability of the interconnected networks supporting such services. We propose a service oriented stochastic modelling methodology to investigate the availability of large interconnected networks, based on the hierarchical application of different modelling formalisms to different parts of the networks. Interconnected networks are decomposed according to the specific services delivered until the failure and repair mechanisms of the decomposed elementary blocks can be identified. We represent each network by a convenient stochastic modelling formalism, able to capture the main technological issues and to cope with realistic assumptions about failure and recovery mechanisms. This procedure confines the application of the more intensive computational techniques to those subsystems that actually require it. The paper concentrates on an actual failure scenario, occurred in Rome in January 2004 that involved the outage of critical SCADA communication links, interconnecting a power grid and a Telco network.

  4. Unavailability of critical SCADA communication links interconnecting a power grid and a Telco network

    Energy Technology Data Exchange (ETDEWEB)

    Bobbio, A. [Dipartimento di Informatica, Universita del Piemonte Orientale, Viale Michel 11, 15121 Alessandria (Italy); Bonanni, G.; Ciancamerla, E. [ENEA - CRE Casaccia, Via Anguillarese 301, 00060 Roma (Italy); Clemente, R. [Telecom Italia Mobile, Via Isonzo112, 10141 Torino (Italy); Iacomini, A. [ACEA, Pl. Ostiense 2, 00154 Roma (Italy); Minichino, M., E-mail: minichino@casaccia.enea.i [ENEA - CRE Casaccia, Via Anguillarese 301, 00060 Roma (Italy); Scarlatti, A. [ACEA, Pl. Ostiense 2, 00154 Roma (Italy); Terruggia, R. [Dipartimento di Informatica, Universita del Piemonte Orientale, Viale Michel 11, 15121 Alessandria (Italy); Zendri, E. [ACEA, Pl. Ostiense 2, 00154 Roma (Italy)

    2010-12-15

    The availability of power supply to power grid customers depends upon the availability of services of supervision, control and data acquisition (SCADA) system, which constitutes the nervous system of a power grid. In turn, SCADA services depend on the availability of the interconnected networks supporting such services. We propose a service oriented stochastic modelling methodology to investigate the availability of large interconnected networks, based on the hierarchical application of different modelling formalisms to different parts of the networks. Interconnected networks are decomposed according to the specific services delivered until the failure and repair mechanisms of the decomposed elementary blocks can be identified. We represent each network by a convenient stochastic modelling formalism, able to capture the main technological issues and to cope with realistic assumptions about failure and recovery mechanisms. This procedure confines the application of the more intensive computational techniques to those subsystems that actually require it. The paper concentrates on an actual failure scenario, occurred in Rome in January 2004 that involved the outage of critical SCADA communication links, interconnecting a power grid and a Telco network.

  5. A power spectrum approach to tally convergence in Monte Carlo criticality calculation

    International Nuclear Information System (INIS)

    Ueki, Taro

    2017-01-01

    In Monte Carlo criticality calculation, confidence interval estimation is based on the central limit theorem (CLT) for a series of tallies from generations in equilibrium. A fundamental assertion resulting from CLT is the convergence in distribution (CID) of the interpolated standardized time series (ISTS) of tallies. In this work, the spectral analysis of ISTS has been conducted in order to assess the convergence of tallies in terms of CID. Numerical results obtained indicate that the power spectrum of ISTS is equal to the theoretically predicted power spectrum of Brownian motion for tallies of effective neutron multiplication factor; on the other hand, the power spectrum of ISTS of a strongly correlated series of tallies from local powers fluctuates wildly while maintaining the spectral form of fractional Brownian motion. The latter result is the evidence of a case where a series of tallies are away from CID, while the spectral form supports normality assumption on the sample mean. It is also demonstrated that one can make the unbiased estimation of the standard deviation of sample mean well before CID occurs. (author)

  6. President of Ecuador visits CERN

    CERN Multimedia

    Rosaria Marraffino

    2014-01-01

    On Friday, 24 October, Dr. Rafael Correa Delgado, President of the Republic of Ecuador, visited CERN.   Visiting Geneva to deliver a lecture at the UN, Ecuadorian President Rafael Correa Delgado seized the chance to have a short but intense visit of the Laboratory. The President was met at LHC Point 1 by the Director for Research and Scientific Computing Sergio Bertolucci, who gave him an introduction to CERN’s activities.He was also introduced to the Director for Accelerators and Technology, Frédérick Bordry, and Department Heads José Miguel Jiménez (TE), Livio Mapelli (PH) and Roberto Saban (EN). President Correa Delgado also met with Martijn Mulders, co-organiser of the CERN Latin America School of High-Energy Physics, which will be held in Ecuador from 4 to 17 March 2015. Shortly after that, he visited the ATLAS experimental cavern which he toured with ATLAS Collaboration Spokesperson David Charlton and Fernando Monticelli of t...

  7. President Ilvese road trip : [fotod

    Index Scriptorium Estoniae

    2010-01-01

    President Toomas Hendrik Ilves pidi Euroopa lennuliikluses kaose tekitanud Islandi vulkaanituha tõttu Türgist kodumaale naasmiseks läbima üheksa riiki ja 3500 kilomeetrit. Ametlik visiit Türgi Vabariiki 15.-21.04.2010

  8. ENS 1990: the president's report

    International Nuclear Information System (INIS)

    Dievoet, J. van.

    1991-01-01

    In his annual report for 1990 the ENS president addressed the following topics: leadership and finances, ENS becomes pan-european, ENC '90, ENS's new program 'renaissance of nuclear energy', Helsinki outreach, 'Nucleus', PIME '91, info committee, topical meetings, students, Nuclear Europe Worldscan, pact with science journals, international meetings, supporting members and finally gratitude and friendship

  9. President of Chile at CERN

    CERN Multimedia

    2007-01-01

    The President of Chile, Michelle Bachelet, in the ATLAS cavern with, from left to right, Peter Jenni, ATLAS Spokesman, Vivian Heyl, CONICYT President, and Robert Aymar, CERN Director-General. Robert Aymar, CERN Director-General, and Vivian Heyl, CONICYT President, signing a cooperation agreement between CERN and Chile’s Comisión Nacional de Investigación Científica y Tecnológica (CONICYT).The President of Chile, Michelle Bachelet, paid a visit to CERN during her three-day tour of Switzerland. The charismatic Michelle Bachelet and her large delegation were greeted by the CERN Director-General and then taken to see the ATLAS experiment and the LHC. She also took time to meet the Chilean community working at CERN, comprising several physicists in the Theory Group and the ATLAS experiment. The meeting was followed by the signing of a cooperation agreement between CERN and Chile’s Comisión Nacional de Investigación Científi...

  10. President vs Merkel / Liisi Poll

    Index Scriptorium Estoniae

    Poll, Liisi, 1980-

    2010-01-01

    Saksamaa president Horst Köhler otsustas tagasi astuda ja kantsler Angela Merkel peab nüüd uue presidendikandidaadi leidma, et oma mainet päästa. Maine päästmine on äärmiselt vajalik, kuna Angela Merkeli enda tegutsemine majanduskriisi ja Kreeka laenupaketi asjus on muutnud partei ja kogu valitsuse üha ebapopulaarsemaks

  11. Swiss President to visit CERN

    CERN Multimedia

    2003-01-01

    "Pascal Couchepin, President of the Swiss Confederation, will visit CERN on 4 June to participate in the official inauguration of the underground cavern for the laboratory's ATLAS experiment. As the first new experimental cavern to be handed over to CERN by civil engineering contractors, this represents an important milestone for the Laboratory" (1 page).

  12. Co-generation project for the Combined Cycle Power Plant President Juarez Rosarito and a reverse osmosis desalting plant; Proyecto de cogeneracion para la planta de ciclo combinado Presidente Juarez Rosarito y una planta desaladora de osmosis inversa

    Energy Technology Data Exchange (ETDEWEB)

    Beltran Mora, Hector; Espindola Hernandez, Salvador [Universidad NAcional Autonoma de Mexico (UNAM), Mexico, D.F. (Mexico)

    2006-11-15

    In this work a technical and economical analysis of the installation of a reverse osmosis desalting plant connected to a power station that uses the combined cycle technology under a co-generation scheme is presented: production of electricity and water. The operation program of the desalting power station will be determined by the demand of energy of the combined cycle power station; the proposal is that the desalting plant operates in the hours of low load of the power station and shuts down at the peak hours of electrical energy demand. So that this study is representative, the demand curves of electric energy of the units of combined cycle of Central President Juarez Rosarito of the Comision Federal de Electricidad (CFE) have been taken and updated the data of the reverse osmosis desalting plants that are available at the moment in the market. As basis of the study the level costs will be determined so much as the electrical energy generated by the power station of combined cycle, operating inside and outside of a co-generation scheme and the costs made level for the water produced by the reverse osmosis plant under two assumptions: the first one is buying the electrical energy from CFE and the second one considering that the CFE is the owner of the desalting plant and therefore the cost of electrical energy to desalting the plant is zero. This work shows the economic impacts on the costs of the generation of electrical energy and on those of the desalted water in a co-generation scheme. The results shown in this study can be considered for the future planning in the construction of desalting plants to supply of water in the Northwestern zones of the country where serious problems of water shortage exist. [Spanish] En este trabajo se presenta un analisis tecnico y economico de la instalacion de una planta desaladora de osmosis inversa acoplada a una central de generacion de energia electrica que utiliza la tecnologia de ciclo combinado bajo un esquema de

  13. Profile : new CAPP president a proven leader

    International Nuclear Information System (INIS)

    Lorenz, A.

    1999-01-01

    The Canadian Association of Petroleum Producers (CAPP) has a new president, Pierre Alvarez. Along with many academic credentials, Alvarez has expertise working in the north, where Chevron Canada, Ranger Oil, Paramount Resources and other companies are concentrating their exploration activity. Alvarez has worked extensively in Yellowknife, and has spent time at Canada's most northerly producing oilfield, Imperial Oil's Norman Wells. He has also worked closely with Canada's First Nations regarding negotiations involving territorial resource ownership in the Northwest Territories where 48 per cent of the 39,600 residents are aboriginal. Future exploration activity is expected near Fort Liard and the Beaufort-Delta region. Alvarez was also instrumental in moving the Northwest Territories Power Corp. headquarters from Edmonton to Hay River,and in upgrading the northern power grid. 1 fig

  14. Complementary role of critical integral experiment and power reactor start-up experiments for LMFBR neutronics data and method validation

    International Nuclear Information System (INIS)

    Salvatores, M.

    1986-09-01

    Both critical experiments and power reactor results play at present a complementary role in reducing the uncertainties in Key design parameters for LMFBR, which can be relevant for the economic performances of this type of reactors

  15. Qualification of safety-critical software for digital reactor safety system in nuclear power plants

    International Nuclear Information System (INIS)

    Kwon, Kee-Choon; Park, Gee-Yong; Kim, Jang-Yeol; Lee, Jang-Soo

    2013-01-01

    This paper describes the software qualification activities for the safety-critical software of the digital reactor safety system in nuclear power plants. The main activities of the software qualification processes are the preparation of software planning documentations, verification and validation (V and V) of the software requirements specifications (SRS), software design specifications (SDS) and codes, and the testing of the integrated software and integrated system. Moreover, the software safety analysis and software configuration management are involved in the software qualification processes. The V and V procedure for SRS and SDS contains a technical evaluation, licensing suitability evaluation, inspection and traceability analysis, formal verification, software safety analysis, and an evaluation of the software configuration management. The V and V processes for the code are a traceability analysis, source code inspection, test case and test procedure generation. Testing is the major V and V activity of the software integration and system integration phases. The software safety analysis employs a hazard operability method and software fault tree analysis. The software configuration management in each software life cycle is performed by the use of a nuclear software configuration management tool. Through these activities, we can achieve the functionality, performance, reliability, and safety that are the major V and V objectives of the safety-critical software in nuclear power plants. (author)

  16. Critical heat fluxes in tubular fuel elements of nuclear power reactors

    International Nuclear Information System (INIS)

    Subbotin, V.I.; Alekseev, G.V.; Peskov, O.L.

    1974-01-01

    The results of the experiments carried out show that with appropriate choice of tube, type and dimensions of intensifier the attainment of critical conditions at certain parameters is not accompanied by sharp or considerable increases in temperature of the heat removing surface. Increase in power to above critical under these conditions does not lead to considerable variation in temperature either. Thus, it appears possible to change from heat removal by steam-water mixture to convective heat removal by wet steam without manifestation of intolerable temperature conditions of the heating surface (Fig. 6). A change to convective heat removal by wet steam is possible at different levels of heat fluxes which depend during constant conditions at the inlet on tube length and the degree of the disturbing influence on the flow. This is especially important since in principle the possibility arises for developing a power reactor with tubular fuel elements, in which a once-through cycle with steam superheat involving no intermediate separation can be realised

  17. Magnetocaloric properties and critical behavior of high relative cooling power FeNiB nanoparticles

    Energy Technology Data Exchange (ETDEWEB)

    Chaudhary, V. [Interdisciplinary Graduate School, Nanyang Technological University, Singapore 639798 (Singapore); Energy Research Institute @NTU, Nanyang Technological University, Singapore 637553 (Singapore); School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798 (Singapore); Maheswar Repaka, D. V.; Chaturvedi, A.; Ramanujan, R. V., E-mail: ramanujan@ntu.edu.sg [School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798 (Singapore); Sridhar, I. [School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798 (Singapore)

    2014-10-28

    Low cost magnetocaloric nanomaterials have attracted considerable attention for energy efficient applications. We report a very high relative cooling power (RCP) in a study of the magnetocaloric effect in quenched FeNiB nanoparticles. RCP increases from 89.8 to 640 J kg{sup −1} for a field change of 1 and 5 T, respectively, these values are the largest for rare earth free iron based magnetocaloric nanomaterials. To investigate the magnetocaloric behavior around the Curie temperature (T{sub C}), the critical behavior of these quenched nanoparticles was studied. Detailed analysis of the magnetic phase transition using the modified Arrott plot, Kouvel-Fisher method, and critical isotherm plots yields critical exponents of β = 0.364, γ = 1.319, δ = 4.623, and α = −0.055, which are close to the theoretical exponents obtained from the 3D-Heisenberg model. Our results indicate that these FeNiB nanoparticles are potential candidates for magnetocaloric fluid based heat pumps and low grade waste heat recovery.

  18. FY 2015 Supplement to the Presidents Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — The annual Supplement to the Presidents Budget for the NITRD Program provides a technical summary of the research activities planned and coordinated through NITRD in...

  19. FY 2016 Supplement to the Presidents Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — The annual Supplement to the Presidents Budget for the NITRD Program provides a technical summary of the research activities planned and coordinated through NITRD in...

  20. Vaclav Havel avaldas president Ilvesele solidaarsust

    Index Scriptorium Estoniae

    2007-01-01

    Tshehhi Vabariigi esimene president Vaclav Havel saatis president Toomas Hendrik Ilvesele ja Eesti rahvale toetusavalduse seoses viimase kuu jooksul toimunud Venemaa rünnakutega Eesti vastu. Ingl. k. lk. 12, pealk.: Havel supports Estonia

  1. President Ilves kohtus Horvaatia liidritega / Kristel Peterson

    Index Scriptorium Estoniae

    Peterson, Kristel

    2009-01-01

    Zagrebis ametlikul visiidil viibinud president Toomas Hendrik Ilves kohtus Horvaatia peaministri Ivo Sanaderi ja Horvaatia parlamendi esimehe Luka Bebic'iga. Vabariigi President ametlikul visiidil Horvaatias 16.-18.03.2009

  2. FY 2014 Supplement to the Presidents Budget

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — The annual Supplement to the Presidents Budget for the NITRD Program provides a technical summary of the research activities planned and coordinated through NITRD in...

  3. Stopping power and range relations for low and high Z ions in solids: a critical analysis

    International Nuclear Information System (INIS)

    Virk, H.S.; Randhawa, G.S.

    1997-01-01

    A critical analysis of various stopping power and range formulations has been made by comparing the calculated stopping power and range values with corresponding experimental values for different low Z (1≤Z≤8) and high Z projectiles (54≤Z≤92) in different targets, e.g. Be, C, Al, Au, Pb, CR-39, Lexan, Mylar, LR-115, CH, (CH)n, TRIFOL-TN, etc. atvarious low and high energies. A comparative study has been made by taking into consideration different target and projectile combinations, e.g., heavy ion-light target, light ion-heavy target and light ion -light target etc., Overall the Ziegler formulation (TRIM-95) provides the best agreement with the experimental results for all projectile and target combinations except for heavy ion-light target combination where it underestimates the stopping power data and overestimates the range data in the range, 2-50 MeV/u. Mukherjee and Nayak formulation totally fails at relativistic and low energies of the projectile, irrespective of the projectile-target combination. Northcliffe and Schilling formulation does not show any particular trend. Benton and Henke formulation gives good agreement between experimental and theoretical data within the range of experimental errors. (orig.)

  4. A New Approach of Modeling an Ultra-Super-Critical Power Plant for Performance Improvement

    Directory of Open Access Journals (Sweden)

    Guolian Hou

    2016-04-01

    Full Text Available A suitable model of coordinated control system (CCS with high accuracy and simple structure is essential for the design of advanced controllers which can improve the efficiency of the ultra-super-critical (USC power plant. Therefore, with the demand of plant performance improvement, an improved T-S fuzzy model identification approach is proposed in this paper. Firstly, the improved entropy cluster algorithm is applied to identify the premise parameters which can automatically determine the cluster numbers and initial cluster centers by introducing the concept of a decision-making constant and threshold. Then, the learning algorithm is used to modify the initial cluster center and a new structure of concluding part is discussed, the incremental data around the cluster center is used to identify the local linear model through a weighted recursive least-square algorithm. Finally, the proposed approach is employed to model the CCS of a 1000 MW USC one-through boiler power plant by using on-site measured data. Simulation results show that the T-S fuzzy model built in this paper is accurate enough to reflect the dynamic performance of CCS and can be treated as a foundation model for the overall optimizing control of the USC power plant.

  5. Investigation on premature occurrence of critical heat flux under oscillatory flow and power conditions

    International Nuclear Information System (INIS)

    Vishnoi, A.K.; Dasgupta, A.; Chandraker, D.K.; Nayak, A.K.; Vijayan, P.K.

    2015-01-01

    Two-phase natural circulation loops have extensive applications in nuclear and process industries. One of the major concerns with natural circulation is the occurrence of the various types of flow instabilities, which can cause premature boiling crisis due to flow and power oscillations. In this work a transient computer code COPCOS (Code for Prediction of CHF under Oscillating flow and power condition) has been developed to predict the premature occurrence of CHF (critical heat flux) under oscillating flow and power. The code incorporates conduction equation of the fuel and coolant energy equation. For CHF prediction, CHF look-up table developed by Groeneveld is used. A facility named CHF and Instability Loop (CHIL) has been set up to study the effect of oscillatory flow on CHF. CHF and Instability Loop (CHIL) is a simple rectangular loop having a 10.5 mm ID and 1.2 m long test section. The flow through the test section is controlled by a canned motor pump using a Variable Frequency Drive (VFD). This leads to the ability of having a very precise control over flow oscillations which can be induced in the test section. The effect of frequency and amplitude of flow oscillation on occurrence of premature CHF has been investigated in this facility using COPCOS. Full paper covers details of COPCOS code, description of the facility and effect of frequency and the effect of oscillatory flow on CHF in the facility. (author)

  6. On appointment of Courts presidents - some open questions

    Directory of Open Access Journals (Sweden)

    Mijo Galiot

    2014-01-01

    Full Text Available In their paper, the authors analyse the legal position of the judiciary within the framework of the separation of powers in the Republic of Croatia, as well as the procedure of the election of the members and president, and the scope and manner of operation of the State Judiciary Council on a principal level. The authors especially deal with and analyse the 2010 constitutional changes and the State Judiciary Council Act from 2010 (SJCA, which introduced significant novelties in the appointment of presidents of courts in the normative and institutional sense as well as in practical applications. Separately, an integral historical overview is given of the appointment of presidents of courts from the gaining of Croatian independency until the SJCA became effective, as well as a comparative overview of the manner of appointment of presidents of courts in elected, related European legal systems. Moreover, the authors break down and analyse the procedures of the appointment of presidents of courts with a special reference to each phase. Here, special emphasis is given to the candidate valuation manner and criteria and the legal protection of candidates after the decision on appointment, both in the normative sense and in practice, all this accompanied by authors’ suggestions de lege ferenda.

  7. 45 CFR 99.2 - Presiding officer.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Presiding officer. 99.2 Section 99.2 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION PROCEDURE FOR HEARINGS FOR THE CHILD CARE AND DEVELOPMENT FUND General § 99.2 Presiding officer. (a) (1) The presiding officer at a...

  8. Estonia President, Obama Discuss Cybersecurity / Eric Chabrow

    Index Scriptorium Estoniae

    Chabrow, Eric

    2009-01-01

    President Toomas Hendrik Ilves kohtus 15. juunil 2009 Washingtonis USA presidendi Barack Obamaga. Riigipead arutasid küberkaitse küsimusi. Eesti president avaldas Ühendriikidele tänu abi eest küberkaitsekeskuse loomisel Tallinnasse. Vabariigi President töövisiidil Ameerika Ühendriikides 9.-16.06.2009

  9. President Rüütli viis aastat

    Index Scriptorium Estoniae

    2006-01-01

    Ülevaade president Arnold Rüütli viie ametisoldud aasta tegevusest. Vt. samas: Rainer Kerge intervjuud Ingrid Rüütliga; Urmo Soonvald. Presidendilossist lahkub ka Arnold Rüütli meeskond; Villu Reiljan. Kolm märksõna president Rüütli kohta; Lühilood president Rüütlist

  10. Sustainability from the Occurrence of Critical Dynamic Power System Blackout Determined by Using the Stochastic Event Tree Technique

    Directory of Open Access Journals (Sweden)

    Muhammad Murtadha Othman

    2017-06-01

    Full Text Available With the advent of advanced technology in smart grid, the implementation of renewable energy in a stressed and complicated power system operation, aggravated by a competitive electricity market and critical system contingencies, this will inflict higher probabilities of the occurrence of a severe dynamic power system blackout. This paper presents the proposed stochastic event tree technique used to assess the sustainability against the occurrence of dynamic power system blackout emanating from implication of critical system contingencies such as the rapid increase in total loading condition and sensitive initial transmission line tripping. An extensive analysis of dynamic power system blackout has been carried out in a case study of the following power systems: IEEE RTS-79 and IEEE RTS-96. The findings have shown that the total loading conditions and sensitive transmission lines need to be given full attention by the utility to prevent the occurrence of dynamic power system blackout.

  11. The presidency: the problem of leadership

    Directory of Open Access Journals (Sweden)

    S. V. Skic’

    2016-08-01

    It has been grounded that the institute of presidency is aware of ethics’ critical necessity in cultural sphere. However, there is still a lot to improve. First, State organizations must understand ethics as a social responsibility, to which it is obligated. No matter how, it is unacceptable to hurt others for personal gains. Ethics will find its proper place only in state organizations, which consider its importance by creating relative connections that work good for everyone. Finally, the best state organizations will seize the opportunity to shape the future by influencing culture through the institutionalization of ethical values. As a result, creating a values-based culture within the state organizations, society can be improved by positive influences that perpetuate outside the state organizations.

  12. President muutis riiklike autasude otsust

    Index Scriptorium Estoniae

    2006-01-01

    President Arnold Rüütel otsustas anda Torino taliolümpial kuldmedali võitnud suusatajatele Kristina Šmigun'ile ja Andrus Veerpalu'le Valgetähe I klassi teenetemärgi ja nende treeneritele Mati Alaver'ile ja Anatoli Šmigun'ile Valgetähe III klassi teenetemärgi. Ilmunud ka Vooremaa, 2006/Feb/23, lk. 3 ; Eesti Elu = Estonian Life, 2006/Feb/24, lk. 20

  13. Critical review of the first-law efficiency in different power combined cycle architectures

    International Nuclear Information System (INIS)

    Iglesias Garcia, Steven; Ferreiro Garcia, Ramon; Carbia Carril, Jose; Iglesias Garcia, Denis

    2017-01-01

    Highlights: • The adiabatic expansion based TC can improve the energy efficiency of CCs. • A revolutionary TC can be a starting point to develop high-performance CCs. • A theoretical thermal efficiency of 83.7% was reached in a Nuclear Power Plant using a TC as bottoming cycle. - Abstract: This critical review explores the potential of an innovative trilateral thermodynamic cycle used to transform low-grade heat into mechanical work and compares its performance with relevant traditional thermodynamic cycles in combined cycles. The aim of this work is to show that combined cycles use traditional low efficiency power cycles in their bottoming cycle, and to evaluate theoretically the implementation of alternative power bottoming cycles. Different types of combined cycles have been reviewed, highlighting their relevant characteristics. The efficiencies of power plants using combined cycles are reviewed and compared. The relevance of researching thermodynamic cycles for combined cycle applications is that a vast amount of heat energy is available at negligible cost in the bottoming cycle of a combined cycle, with the drawback that existing thermal cycles cannot make efficient use of such available low temperature heat due to their low efficiency. The first-law efficiency is used as a parameter to compare and suggest improvements in the combined cycles (CCs) reviewed. The analysis shows that trilateral cycles using closed processes are by far the most efficient published thermal cycles for combined cycles to transform low-grade heat into mechanical work. An innovative trilateral bottoming cycle is proposed to show that the application of non-traditional power cycles can increase significantly the first-law efficiency of CCs. The highest first-law efficiencies achieved are: 85.55% in a CC using LNG cool, 73.82% for a transport vehicle CC, 74.40% in a marine CC, 83.07% in a CC for nuclear power plants, 73.82% in a CC using Brayton and Rankine cycles, 78.31% in a CC

  14. Design and analysis on super-critical water cooled power reactors

    International Nuclear Information System (INIS)

    Ishiwatari, Yuki

    2005-01-01

    The Super-Critical Water Cooled Power Reactors (SCPR) is cooled by 25 MPa supercritical water of 280degC at reactor inlet and greater than 500degC at reactor outlet and directly connected with turbine/generators with high energy conversion efficiency. This corresponds to the deletion of recirculation system and steam-water separation system of BWR type reactors or of pressurizer and steam generator of PWR type reactors. In addition to the design study of the university of Tokyo, technology development of the SCPR for practical use has started under the collaboration of industry and academia since 2000. Mockup single tube and bundle tests for heat transfer/fluid flow characteristics of the design have been conducted with 3D heat transfer analysis. Materials compatible with coolant conditions for fuel cans and reactor internals are also assessed. Overall evaluation of the reactor concept is under way. (T. Tanaka)

  15. Study of time-critical diagnostic method for emergency operation of nuclear power plant

    International Nuclear Information System (INIS)

    Gofuku, A.; Yoshikawa, H.; Itoh, K.; Wakabayashi, J.

    1986-01-01

    In order to support the emergency operation of nuclear power plant, the method of time-critical diagnostic plant analyzer has been investigated. The conception of the emergency operation support center is proposed and two types of plant analyzer may be installed in this center. One analyzer is a real-time tracking simulation code using the observed signals and another is a fast trend-prediction code. A real-time tracking code, TOKRAC, has been developed for analyzing the PWR primary loop thermo-hydraulics at SBLOCA, and the applicability of this code was examined by the numerical experiments for the initial phase transient of both TMI-2 accident and 6% coldleg SBLOCA of a Westinghouse-type PWR plant. The results showed that fairly good tracking was carried out by TOKRAC. The CPU time of TOKRAC was about 12-14 percent of real-time

  16. Method and apparatus for preventing inadvertent criticality in a nuclear fueled electric power generating unit

    International Nuclear Information System (INIS)

    Tuley, C.R.; Bauman, D.A.; Neuner, J.A.; Feilchenfeld, M.M.; Greenberg, L.

    1984-01-01

    An inadvertent approach to criticality in a nuclear fueled electric power generating unit is detected and an alarm is generated through on-line monitoring of the neutron flux. The difficulties of accurately measuring the low levels of neutron flux in a subcritical reactor are overcome by the use of a microcomputer which continuously generates average flux count rate signals for incremental time periods from thousands of samples taken during each such period and which serially stores the average flux count rate signals for a preselected time interval. At the end of each incremental time period, the microcomputer compares the latest average flux count rate signal with the oldest, and preferably each of the intervening stored values, and if it exceeds any of them by at least a preselected multiplication factor, an alarm is generated. (author)

  17. Nonlinear quenches of power-law confining traps in quantum critical systems

    International Nuclear Information System (INIS)

    Collura, Mario; Karevski, Dragi

    2011-01-01

    We describe the coherent quantum evolution of a quantum many-body system with a time-dependent power-law confining potential. The amplitude of the inhomogeneous potential is driven in time along a nonlinear ramp which crosses a critical point. Using Kibble-Zurek-like scaling arguments we derive general scaling laws for the density of excitations and energy excess generated during the nonlinear sweep of the confining potential. It is shown that, with respect to the sweeping rate, the densities follow algebraic laws with exponents that depend on the space-time properties of the potential and on the scaling dimensions of the densities. We support our scaling predictions with both analytical and numerical results on the Ising quantum chain with an inhomogeneous transverse field varying in time.

  18. Evolution of Canadian nursing curricula: a critical retrospective analysis of power and caring.

    Science.gov (United States)

    Anthony, Susan E; Landeen, Janet

    2009-01-01

    The evolution of Canadian nursing curricula has mutually influenced and reflected nursing's historical course: nursing practice and education are inextricably linked. This paper is a critical retrospective analysis of the evolution of nursing curricula in Canada from the 20th century to the present. Falk Rafael's (1996) dialectic exploration of power and caring in nursing guides the analysis. An ordered, assimilated, and empowered curriculum development framework results. Foucault's (1980) work in the sociology of knowledge and Belenky, Clinchy, Goldberger, and Tarule's (1986) epistemological conceptualization of women's knowledge development are incorporated. The intricacies of the relationship between nursing curriculum development and Canadian history, the navigation of societal paradoxes that mutually drive and inform education and practice, and the instrumental need for nursing education research are considered. A fourth and new dialectic layer is suggested that places nursing on the inter-professional team of architects of a co-constructed emancipatory curriculum.

  19. A survey of critical research areas in the energy segment of restructured electric power markets

    International Nuclear Information System (INIS)

    Nanduri, Vishnu; Das, Tapas K.

    2009-01-01

    Availability of a large volume of recent literature on deregulated (a.k.a. restructured) electricity markets underscores the importance of the research needs to ensure proper design and functioning of the markets. Researchers have made significant contributions fueling the evolution of the fundamental market design changes that have taken place since the beginning of the restructuring process. Due to the vast scope, existing survey papers are focused on particular facets of deregulated electricity markets. We adopt a similar approach by focusing on the most important research areas related to the energy market. The contributions of the survey paper lie in the novel approach used in classifying the literature based on critical research areas. Some areas of research such as auction based pricing, bidding strategy formulation, market equilibria, and market power are reviewed in a different light than other existing survey papers. We conclude by providing some future research directions for the energy markets. (author)

  20. Critical defect size assessment in pipelines on a nuclear power plant

    Directory of Open Access Journals (Sweden)

    Dimova Galya

    2018-01-01

    Full Text Available In many energy industry structures, pipeline systems are subject to the impact of mechanical forces, moments of forces and fluid flows of high pressure and temperature. These load factors cause defects in the pipeline metal. As the years of operation increase, defects may occur and grow, which may lead to the destruction of pipeline walls. Special measures have been planned and implemented to ensure the safe operation of high-energy facilities. This study focused on pipelines and nozzles of nuclear power plant equipment with bimetal welded joints on which the size of critical defects was assessed. The base of assessment covers material properties, temperature and stress fields, fracture mechanics calculations. This study involves developing of finite element models and implementing simulations on them in order to obtain temperature fields and determine the stress-strain state of the component.

  1. Reliability and vulnerability analyses of critical infrastructures: Comparing two approaches in the context of power systems

    International Nuclear Information System (INIS)

    Johansson, Jonas; Hassel, Henrik; Zio, Enrico

    2013-01-01

    Society depends on services provided by critical infrastructures, and hence it is important that they are reliable and robust. Two main approaches for gaining knowledge required for designing and improving critical infrastructures are reliability analysis and vulnerability analysis. The former analyses the ability of the system to perform its intended function; the latter analyses its inability to withstand strains and the effects of the consequent failures. The two approaches have similarities but also some differences with respect to what type of information they generate about the system. In this view, the main purpose of this paper is to discuss and contrast these approaches. To strengthen the discussion and exemplify its findings, a Monte Carlo-based reliability analysis and a vulnerability analysis are considered in their application to a relatively simple, but representative, system the IEEE RTS96 electric power test system. The exemplification reveals that reliability analysis provides a good picture of the system likely behaviour, but fails to capture a large portion of the high consequence scenarios, which are instead captured in the vulnerability analysis. Although these scenarios might be estimated to have small probabilities of occurrence, they should be identified, considered and treated cautiously, as probabilistic analyses should not be the only input to decision-making for the design and protection of critical infrastructures. The general conclusion that can be drawn from the findings of the example is that vulnerability analysis should be used to complement reliability studies, as well as other forms of probabilistic risk analysis. Measures should be sought for reducing both the vulnerability, i.e. improving the system ability to withstand strains and stresses, and the reliability, i.e. improving the likely behaviour

  2. A case study and critical assessment in calculating power usage effectiveness for a data centre

    International Nuclear Information System (INIS)

    Brady, Gemma A.; Kapur, Nikil; Summers, Jonathan L.; Thompson, Harvey M.

    2013-01-01

    Highlights: • A case study PUE calculation is carried out on a data centre by using open source specifications. • The PUE metric does not drive improvements in the efficiencies of IT processes. • The PUE does not fairly represent energy use; an increase in IT load can lead to a decrease in the PUE. • Once a low PUE is achieved, power supply efficiency and IT load have the greatest impact on its value. - Abstract: Metrics commonly used to assess the energy efficiency of data centres are analysed through performing and critiquing a case study calculation of energy efficiency. Specifically, the metric Power Usage Effectiveness (PUE), which has become a de facto standard within the data centre industry, will be assessed. This is achieved by using open source specifications for a data centre in Prineville, Oregon, USA provided by the Open Compute Project launched by the social networking company Facebook. The usefulness of the PUE metric to the IT industry is critically assessed and it is found that whilst it is important for encouraging lower energy consumption in data centres, it does not represent an unambiguous measure of energy efficiency

  3. Study of a criticality accident involving fuel rods and water outside a power reactor

    International Nuclear Information System (INIS)

    Beloeil, L.

    2000-01-01

    It is possible to imagine highly unlikely but numerous accidental situations where fuel rods come into contact with water under conditions close to atmospheric values. This work is devoted to modelling and simulation of first instants of the power excursion that may result from such configurations. We show that void effect is a preponderant feedback for most severe accidents. The formation of a vapour film around the rods is put forward and confirmed with the help of experimental transients using electrical heating. We propose then a vapour/liquid flow model able to reproduce void fraction evolution. The vapour film is treated as a compressible medium. Conservation balance equations are solved on a moving mesh with a two-dimensional scheme and boundary conditions taking notice of interfacial phenomena and axial escape possibility. Movements of the liquid phase are modelled through a non-stationary integral equation and a dissipative term suited to the particular geometry of this flow. The penetration of energy into the liquid is also calculated. Thus, the coupling of aerodynamic and hydrodynamic modules gives results in excellent agreement with experiments. Next, neutronic phenomena into the fuel pellet, their feedback effects and the distribution of power through the rod are numerically translated. For each developed module, validation tests are provided. Then, it is possible to simulate the first seconds of the whole criticality accident. Even if this calculation tool is only a way of study as a first approach, performed simulations are proving coherent with reported data on recorded accidents. (author)

  4. National conference of the CLI Presidents

    International Nuclear Information System (INIS)

    Lacoste, A.

    2000-01-01

    This document presents the subjects discussed during the 11. national conference of the CLI Presidents. The subjects are proposed in discussion or speech form. They concern the following matter: the annual result of the factory inspection in the electric power plants; the relations between the CLI (Commission on Local Information) and the CSSIN (Superior Council on the Safety and the Nuclear Information); the Tokai-Mura accident and the teaching brought in France; the crisis exercise of Nogent-sur Seine; a presentation of the future Internet site of the Nuclear Safety Authority. The document also includes a synthesis of the working group reflexions concerning the CLI part in a crisis management and in the public information. (A.L.B.)

  5. Philippine president announces population policy.

    Science.gov (United States)

    1970-02-01

    President Ferdinand Marcos of the Philippines has announced a national policy for family planning, following his recent reelection for a second term of office. Under the policy adopted by the President, the Philippine Government is committed to undertake and encourage programs to provide information and advice for couples wishing to space or limit their child-bearing activities. The Presidential Commission on Population, in a report based on recommendations drawn up after more than 20 meetings by the 22 members, and states that the unfettered population growth will gravely hamper efforts to improve living standards for Filipinos and will block the attainment of national development goals. However, the Commission emphasized that the program will be educational and persuasive, not coercive. Family planning services have been growing rapidly in the Philippines over the past few years as a result of the initiative of several pioneer organizations assisted by the IPPF. President Marcos' government signed the United Nations Declaration on Population in 1967 and in January 1969 he established The Commission on Population. The Philippine press has consistently backed the campaign for widespread availability of family planning services. The Western Pacific Region of the World Health Organization, under it's Director, Dr. Francisco Dy, which has its headquarters in Manila, has its headquarters in Manila, has fostered a regional interest through its technical discussions and the training of field personnel. Depthnews recently reported that the latest Philippine demographic survey asserts that Filipina women are bearing children so fast that the country will hold on to the undisputed title of possessing the highest birth rate in Asia. The growth rate is 3.5%, and the average completed size of a Filipino family is 6.8 children. This swift rate of growth will boost the 1969 population of 37.1 million to 38.4 at the end of this decade. It is noted that unless curbed, it will

  6. Advanced simulation for analysis of critical infrastructure : abstract cascades, the electric power grid, and Fedwire.

    Energy Technology Data Exchange (ETDEWEB)

    Glass, Robert John, Jr.; Stamber, Kevin Louis; Beyeler, Walter Eugene

    2004-08-01

    Critical Infrastructures are formed by a large number of components that interact within complex networks. As a rule, infrastructures contain strong feedbacks either explicitly through the action of hardware/software control, or implicitly through the action/reaction of people. Individual infrastructures influence others and grow, adapt, and thus evolve in response to their multifaceted physical, economic, cultural, and political environments. Simply put, critical infrastructures are complex adaptive systems. In the Advanced Modeling and Techniques Investigations (AMTI) subgroup of the National Infrastructure Simulation and Analysis Center (NISAC), we are studying infrastructures as complex adaptive systems. In one of AMTI's efforts, we are focusing on cascading failure as can occur with devastating results within and between infrastructures. Over the past year we have synthesized and extended the large variety of abstract cascade models developed in the field of complexity science and have started to apply them to specific infrastructures that might experience cascading failure. In this report we introduce our comprehensive model, Polynet, which simulates cascading failure over a wide range of network topologies, interaction rules, and adaptive responses as well as multiple interacting and growing networks. We first demonstrate Polynet for the classical Bac, Tang, and Wiesenfeld or BTW sand-pile in several network topologies. We then apply Polynet to two very different critical infrastructures: the high voltage electric power transmission system which relays electricity from generators to groups of distribution-level consumers, and Fedwire which is a Federal Reserve service for sending large-value payments between banks and other large financial institutions. For these two applications, we tailor interaction rules to represent appropriate unit behavior and consider the influence of random transactions within two stylized networks: a regular homogeneous array

  7. CZECH REPUBLIC BEHIND THE STEERING WHEEL OF THE EUROPEAN UNION: EXPLORING CHALLENGES AND OPPORTUNITIES OF THE FIRST CZECH EU PRESIDENCY

    Directory of Open Access Journals (Sweden)

    David Král

    2008-12-01

    Full Text Available The Czech Republic will be only the second of the EU members that joined in 2004 to preside over what is viewed as the most powerful and influential institution within the European structures – the Council. While technical preparations have been well underway for several years, the current political constellation inside the EU seems to be leaving certain signs of nervousness among Prague-based decision makers. The uncertainty surrounding the future of the Lisbon Treaty with the Irish ‘no’ and uncompleted ratification in the Czech Republic itself, recent controversy between the EU and Russia and not least highly complicated political situation at home are all likely to have an impact on the first, and – in the current form – perhaps also the last Czech presidency of the EU. This article will try to have a look at a critical assessment of the preparations for the Czech presidency, various factors, both internal and external, that are likely to influence its execution, as well as at its priorities as they are tabled at the moment.

  8. Reliability modeling of safety-critical network communication in a digitalized nuclear power plant

    International Nuclear Information System (INIS)

    Lee, Sang Hun; Kim, Hee Eun; Son, Kwang Seop; Shin, Sung Min; Lee, Seung Jun; Kang, Hyun Gook

    2015-01-01

    The Engineered Safety Feature-Component Control System (ESF-CCS), which uses a network communication system for the transmission of safety-critical information from group controllers (GCs) to loop controllers (LCs), was recently developed. However, the ESF-CCS has not been applied to nuclear power plants (NPPs) because the network communication failure risk in the ESF-CCS has yet to be fully quantified. Therefore, this study was performed to identify the potential hazardous states for network communication between GCs and LCs and to develop quantification schemes for various network failure causes. To estimate the risk effects of network communication failures in the ESF-CCS, a fault-tree model of an ESF-CCS signal failure in the containment spray actuation signal condition was developed for the case study. Based on a specified range of periodic inspection periods for network modules and the baseline probability of software failure, a sensitivity study was conducted to analyze the risk effect of network failure between GCs and LCs on ESF-CCS signal failure. This study is expected to provide insight into the development of a fault-tree model for network failures in digital I&C systems and the quantification of the risk effects of network failures for safety-critical information transmission in NPPs. - Highlights: • Network reliability modeling framework for digital I&C system in NPP is proposed. • Hazardous states of network protocol between GC and LC in ESF-CCS are identified. • Fault-tree model of ESF-CCS signal failure in ESF actuation condition is developed. • Risk effect of network failure on ESF-CCS signal failure is analyzed.

  9. Correspondence between the President of the Atomic Energy Organization of Iran and the Director General

    International Nuclear Information System (INIS)

    1984-09-01

    The document includes 5 attachments: the letter of 9 April 1984 from the President of the Atomic Energy Organization of Iran to the Director General, the letter of 11 May 1984 from the Director General to the President of the Atomic Energy Organization of Iran, the text of the telex of 27 May 1984 from the President of the Atomic Energy Organization of Iran to the Director General, the text of the telex of 28 May 1984 from the Director General to the President of the Atomic Energy Organization of Iran and the text of the telex from 30 May 1984 from the President of the Atomic Energy Organization of Iran to the Director General refering to ''Military attack on Iran's Bushehr Nuclear Power Plant''

  10. SARTEMP2 - A computer program to calculate power and temperatures in a transport flask during a criticality accident

    International Nuclear Information System (INIS)

    Shaw, P.M.

    1983-04-01

    The computer code SARTEMP2, an extended version of the original SARTEMP program, which calculates the power and temperatures in a transport flask during a hypothetical criticality accident is described. The accident arises, it is assumed, during the refilling of the flask with water, bringing the system to delayed critical. As the water level continues to rise, reactivity is added causing the power to rise, and thus temperatures in the fuel, clad and water to increase. The point kinetics equations are coupled to the one-dimensional heat conduction equation. The model used, the method of solution of the equations and the input data required are given. (author)

  11. Caffeine Increases Work Done above Critical Power, but Not Anaerobic Work.

    Science.gov (United States)

    Silveira, Rodrigo; Andrade-Souza, Victor Amorim; Arcoverde, Lucyana; Tomazini, Fabiano; Sansonio, André; Bishop, David John; Bertuzzi, Romulo; Lima-Silva, Adriano Eduardo

    2018-01-01

    The assumption that the curvature constant (W') of the power-duration relationship represents anaerobic work capacity is a controversial, unresolved question. We investigated if caffeine ingestion could increase total work done above critical power (CP), and if this would be accompanied by greater anaerobic energy expenditure and by an enhanced maintenance of maximal oxidative metabolic rate. Nine men (26.6 ± 5.3 yr, V˙O2max 40.6 ± 5.8 mL·kg·min) cycled until exhaustion at different exercise intensities on different days to determine the CP and W'. On separated days, participants cycled until exhaustion in the severe-intensity domain (136% ± 7% of CP) after ingesting either caffeine (5 mg·kg body mass) or a placebo. Time to exhaustion was 34% longer with caffeine compared with placebo, and this was accompanied by a greater work done above CP (23.7 ± 5.7 vs 17.5 ± 3.6 kJ; 130% ± 30% vs 95% ± 14% of W', P Caffeine increased the aerobic energy expenditure (296.4 ± 91.0 vs 210.2 ± 71.9 kJ, P caffeine, but the V˙O2 end was similar between conditions and was not different from V˙O2max. Caffeine did not change time to reach V˙O2max but increased time maintained at V˙O2max (199.3 ± 105.9 vs 111.9 ± 87.1 s, P Caffeine increased total work done above CP, but this was not associated with greater anaerobic work. Rather, this was associated with a higher tolerance to maintain exercise at maximal oxidative metabolic rate.

  12. The critical power that can be removed through a hemispherical narrow gap

    International Nuclear Information System (INIS)

    Jeong, J. H.; Park, R. J.; Kang, K. H.; Kim, S. B.; Kim, H. D.

    1998-01-01

    KAERI launched a research program named SONATA-IV (Simulation Of Naturally Arrested Thermal Attack In Vessel) to investigate the possibility of in-vessel debris cooling through a narrow gap that can be formed between reactor pressure vessel and relocated corium. The CHFG (Critical Heat Flux in Gap) experiments, one of the major experiments of the program, are being carried out. The purpose of the CHFG experiments is to assess the heat removal capacity through a hemispherical narrow gap. The experiments were performed using distilled water and the measurements were made in the range of 1 to 5 atm. The dryout of the heater surface is detected using 66 K-type thermocouples embedded in a heated copper shell. Even if local dryout occurs, there exists a quasi-steady state and the temperature of the dryout region is limited within a certain value. When the heater power is large enough, however, there is no quasi-steady state. The dryout region expands by itself without an increase in heater power and the temperature of the heater surface monotonically increase. Temperature measurements over the heater surface show that the two-phase flow behaviour inside the gaps could be quite different from the other usual CHF experiments. The temperature of the local dryout region is much lower than the minimum film boiling temperature that is measured under the pool boiling condition. The cause seems to be the excellent heat conduction of the copper shell. In order to verify this, numerical heat transfer analysis was performed on the copper shell. The results of the analysis supports the postulate. The measured global dryout points are lower than the predictions by existing empirical CHF correlations based on the data measured with small-scale horizontal plates and verical annulus

  13. Continuing Inequity through Neoliberalism: The Conveyance of White Dominance in the Educational Policy Speeches of President Barack Obama

    Science.gov (United States)

    Hairston, Thomas W.

    2013-01-01

    The purpose of this critical discourse analysis is to examine how the political speeches and statements of President Barack Obama knowingly or unknowingly continue practices and policies of White privilege within educational policy and practice by constructing education in a neoliberal frame. With presidents having the ability to communicate…

  14. Discourse of Power and Criticism of Consumerism in D. Mitchell’s “Cloud Atlas”

    Directory of Open Access Journals (Sweden)

    Dmytro Drozdovskyi

    2017-12-01

    Full Text Available In the paper, the specific narrative structure of the novel “Cloud Atlas” has been analyzed. The array of philosophical questions that determine the post-postmodern literature has been outlined. In the novel, the motif connected with the rebirth of the human being has being explicated; the belief related to the irrational bond between the events in the past, present and future, about memory as a special sphere where the crossing of different temporal modes is possible has been visualized. Changeable in this transformation system are such factors as sex, gender, social positions, religious affiliations, etc. The immanent essence of the “humanity” has been defined. This, Sonmi~451 in the fifth story struggles against the totalitarism which cultivates the industry of consumerism transforming entertaining ads and other forms of leisure into the ideology. The forms of criticism toward the consumerism and the bonds between memory, knowledge, and power have been explained. In the paper, the author focuses on the features related to the transition from postmodernism to post-postmodernism in contemporary English literature. The key features of postmodernism in accordance with the theoretical approaches I. Hassan, M. Foucault, F. Kermode, D. Fokkema, etc. have been outlined. The categories of inconsistency and immanence that determine the characteristics of the postmodern sensibility have been emphasized. The conflicts between reason and intuition, myth and technology, religion and science have been analyzed in the discourse of post-postmodernism.

  15. Quantitative safety goals for nuclear power plants: critical review and reformulation within a unified theory

    International Nuclear Information System (INIS)

    Munera, H.A.; Yadigaroglu, G.

    1987-01-01

    Most suggestions for the establishment of probabilistic safety goals in the regulatory process of nuclear power plants contain some measure of total risk to the individual and to society, and/or a limit line. There is still some confusion, both on formal and informal aspects of the basic ideas. The first part of the chapter critically reviews some of the adopted and/or proposed probabilistic safety goals and criteria in several countries. Some of the difficulties identified are: Lack of an adequate delimitation of the scope of the non-deterministic choice problem. Consequently, the main components of the problem -probabilities and consequences - are not clearly defined. As a further consequence there is a conspicuous absence of a unified treatment, including notation and terminology, for concepts like risk, probability, frequency, utility, risk-aversion, limit-line, etc. The theoretical justifications and limitations of limit lines are not always fully understood, nor are the theoretical limitations realized. In the second part theoretical methods of comparing probability distributions which exist in other disciplines are mentioned and unified methodology to formulate probabilistic safety criteria is described. (author)

  16. Prediction of Critical Power and W' in Hypoxia: Application to Work-Balance Modelling.

    Science.gov (United States)

    Townsend, Nathan E; Nichols, David S; Skiba, Philip F; Racinais, Sebastien; Périard, Julien D

    2017-01-01

    Purpose: Develop a prediction equation for critical power (CP) and work above CP (W') in hypoxia for use in the work-balance ([Formula: see text]) model. Methods: Nine trained male cyclists completed cycling time trials (TT; 12, 7, and 3 min) to determine CP and W' at five altitudes (250, 1,250, 2,250, 3,250, and 4,250 m). Least squares regression was used to predict CP and W' at altitude. A high-intensity intermittent test (HIIT) was performed at 250 and 2,250 m. Actual and predicted CP and W' were used to compute W' during HIIT using differential ([Formula: see text]) and integral ([Formula: see text]) forms of the [Formula: see text] model. Results: CP decreased at altitude ( P equations for CP and W' developed in this study are suitable for use with the [Formula: see text] model in acute hypoxia. This enables the application of [Formula: see text] modelling to training prescription and competition analysis at altitude.

  17. Fault-Tree Modeling of Safety-Critical Network Communication in a Digitalized Nuclear Power Plant

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Sang Hun; Kang, Hyun Gook [KAIST, Daejeon (Korea, Republic of)

    2015-10-15

    To achieve technical self-reliance for nuclear I and C systems in Korea, the Advanced Power Reactor 1400 (APR-1400) man-machine interface system (MMIS) architecture was developed by the Korea Atomic Energy Research Institute (KAERI). As one of the systems in the developed MMIS architecture, the Engineered Safety Feature-Component Control System (ESF-CCS) employs a network communication system for the transmission of safety-critical information from group controllers (GCs) to loop controllers (LCs) to effectively accommodate the vast number of field controllers. The developed fault-tree model was then applied to several case studies. As an example of the development of a fault-tree model for ESF-CCS signal failure, the fault-tree model of ESF-CCS signal failure for CS pump PP01A in the CSAS condition was designed by considering the identified hazardous states of network failure that would result in a failure to provide input signals to the corresponding LC. The quantitative results for four case studies demonstrated that the probability of overall network communication failure, which was calculated as the sum of the failure probability associated with each failure cause, contributes up to 1.88% of the probability of ESF-CCS signal failure for the CS pump considered in the case studies.

  18. Comparison of adaptive critic-based and classical wide-area controllers for power systems.

    Science.gov (United States)

    Ray, Swakshar; Venayagamoorthy, Ganesh Kumar; Chaudhuri, Balarko; Majumder, Rajat

    2008-08-01

    An adaptive critic design (ACD)-based damping controller is developed for a thyristor-controlled series capacitor (TCSC) installed in a power system with multiple poorly damped interarea modes. The performance of this ACD computational intelligence-based method is compared with two classical techniques, which are observer-based state-feedback (SF) control and linear matrix inequality LMI-H(infinity) robust control. Remote measurements are used as feedback signals to the wide-area damping controller for modulating the compensation of the TCSC. The classical methods use a linearized model of the system whereas the ACD method is purely measurement-based, leading to a nonlinear controller with fixed parameters. A comparative analysis of the controllers' performances is carried out under different disturbance scenarios. The ACD-based design has shown promising performance with very little knowledge of the system compared to classical model-based controllers. This paper also discusses the advantages and disadvantages of ACDs, SF, and LMI-H(infinity).

  19. T-S criticality of black holes with power Maxwell invariant source

    Science.gov (United States)

    Lin, Ze-Tao; Li, Gu-Qiang; Long, Kun; He, Fang; Mo, Jie-Xiong

    2017-09-01

    In this paper, we show that black holes with PMI source exhibit the T-S criticality and derive the relevant critical physical quantities analytically. The values of critical quantities for the case s≠1 vary from those for the case s=1, showing the effect of PMI field on the critical phenomena of black holes. When qPMI field does not affect the Maxwell equal area law.

  20. Preliminary Failure Modes, Effects and Criticality Analysis (FMECA) of the conceptual Brayton Isotope Power System (BIPS) Flight System

    International Nuclear Information System (INIS)

    Miller, L.G.

    1976-01-01

    A failure modes, effects and criticality analysis (FMECA) was made of the Brayton Isotope Power System Flight System (BIPS-FS) as presently conceived. The components analyzed include: Mini-BRU; Heat Source Assembly (HSA); Mini-Brayton Recuperator (MBR); Space Radiator; Ducts and Bellows, Insulation System; Controls; and Isotope Heat Source (IHS)

  1. Critical experiments supporting close proximity water storage of power reactor fuel. Technical progress report, July 1, 1978-September 30, 1978

    Energy Technology Data Exchange (ETDEWEB)

    Baldwin, M.N.; Hoovler, G.S.; Eng, R.L.; Welfare, F.G.

    1978-11-01

    Experimental measurements are being taken on critical configurations of clusters of fuel rods mocking up LWR-type fuel elements in close proximity water storage. The results will serve to benchmark the computer codes used in designing nuclear power reactor fuel storage racks. KENO calculations of Cores I to VI are within two standard deviations of the measured k/sub eff/ values.

  2. Utilizing Critical Race Theory to Examine Race/Ethnicity, Racism, and Power in Student Development Theory and Research

    Science.gov (United States)

    Hernández, Ebelia

    2016-01-01

    Recognition of social forces (racism, privilege, power) to the extent that is required by critical race theory (CRT) results in a paradigm shift in the way that we theorize and research student development, specifically self-authorship. This paradigm shift moves the center of analysis from individual, to the individual in relation to her…

  3. 76 FR 66693 - President's Export Council: Meeting of the President's Export Council

    Science.gov (United States)

    2011-10-27

    .... ACTION: Notice of an open meeting. SUMMARY: The President's Export Council will hold a meeting to discuss.... exports, jobs, and growth. DATES: November 16, 2011 at 9:30 a.m. (ET) ADDRESSES: The President's Export... on December 20, 1973 to advise the President on matters relating to U.S. export trade and report to...

  4. 75 FR 70905 - President's Export Council: Meeting of the President's Export Council

    Science.gov (United States)

    2010-11-19

    .... ACTION: Notice of an open meeting. SUMMARY: The President's Export Council will hold a meeting to discuss.... exports, jobs, and growth. DATES: December 9, 2010 at 9 a.m. (EST). ADDRESSES: The President's Export... trade and report to the President on its activities and on its recommendations for expanding U.S...

  5. 76 FR 9550 - President's Export Council: Meeting of the President's Export Council

    Science.gov (United States)

    2011-02-18

    .... ACTION: Notice of an open meeting. SUMMARY: The President's Export Council will hold a meeting to discuss.... exports, jobs, and growth. DATES: March 11, 2011 at 9:30 a.m. (ET). ADDRESSES: The President's Export... on December 20, 1973 to advise the President on matters relating to U.S. export trade and report to...

  6. Remarks by president Bush and president Ilves, June 24, 2007 / George W. Bush, Toomas Hendrik Ilves

    Index Scriptorium Estoniae

    Bush, George W., 1946-

    2007-01-01

    Ameerika Ühendriikide president George W. Bush ja Eesti president Toomas Hendrik Ilves annavad lühiülevaateValge Maja ovaalkabinetis peetud kõnelusest, mille põhiteemadeks olid olukord Afganistanis ja Iraagis, viisavabadus ning küberrünnakud. Vabariigi President töövisiidil Ameerika Ühendriikides 25.-26.06.2007

  7. Holding Firm: Power, Push-Back, and Opportunities in Navigating the Liminal Space of Critical Qualitative Health Research.

    Science.gov (United States)

    Hart, Corinne; Poole, Jennifer M; Facey, Marcia E; Parsons, Janet A

    2017-10-01

    Critical qualitative health researchers typically occupy and navigate liminal academic spaces and statuses, with one foot planted in the arts and social sciences and the other in biomedical science. We are at once marginalized and empowered, and this liminality presents both challenges and opportunities. In this article, we draw on our experiences of being (often the lone) critical qualitative health scholars on thesis advisory committees and dissertation examinations, as well as our experiences of publishing and securing funding, to illuminate how power and knowledge relations create conditions that shape the nature of our roles. We share strategies we have developed for standing our theoretical and methodological ground. We discuss how we use the power of our liminality to hold firm, push back, and push forward, to ensure that critical qualitative research is not further relegated to the margins and its quality and integrity sustained.

  8. Power Users and Patchworking – an Analytical Approach to Critical Studies of Young People’s Learning with Digital Media

    DEFF Research Database (Denmark)

    Ryberg, Thomas; Dirckinck-Holmfeld, Lone

    2008-01-01

    This paper sets out to problematize generational categories such as ‘Power Users’ or ‘New Millennium Learners’ by discussing these in the light of recent research on youth and ICT. We then suggest analytic and conceptual pathways to engage in more critical and empirically founded studies of young...... people’s learning in technology and media-rich settings. Based on a study of a group of young ‘Power Users’ it is argued, that conceptualising and analysing learning as a process of patchworking can enhance our knowledge of young people’s learning in such settings. We argue that the analytical approach...... gives us ways of critically investigating young people’s learning in technology and media-rich settings, and study if these are processes of critical, reflexive enquiry where resources are creatively re-appropriated. With departure in an analytical example the paper presents the proposed metaphor...

  9. Studies of safety and critical work situations in nuclear power plants: A human factors perspective

    International Nuclear Information System (INIS)

    Jacobsson Kecklund, L.

    1998-05-01

    The purpose of this thesis was to develop and apply different approaches for analyzing safety in critical work situations in real work settings in nuclear power plants, and also to identify safety enhancing measures by using the framework of interaction between human, organizational and technical subsystems. A Cognitive Psychology as well as a Stress Psychology framework was used. All studies were related to the annual outage operational state where the need for coping with many infrequent tasks, often carried out under high time pressure, puts great strain on the staff and organisation of the plant. In three studies the natural variations in the plant state, normal operation and annual outage operation, were used to explore human performance, work-related factors as well as coping and the operators' own resources and the relationship between them. In the annual outage condition high work demands, decreased sleepiness at night shift, more errors and less satisfaction with work performance quality was reported by maintenance as well as by control room operators. A relationship between high work demands and more organizational problems and reports of more frequent human errors and lower satisfactions with work performance quality was also identified in the annual outage condition. Moreover, a relationship between increased sleepiness during night shift, more frequent use of coping strategies and a higher frequency of human errors was reported. In two studies the Event and Barrier Function Model was applied to analyze the safety of barrier function systems inserted into work process sequences to protect the systems from the negative consequences of failures and errors. The model was also used to assess safety in relation to a technical and organizational change. The last study addressed changes in work performance and work-related factors in relation to a technical and organizational change of a safety significant work process involving increased automation and new

  10. The Prospect for an Australian–Asian Power Grid: A Critical Appraisal

    Directory of Open Access Journals (Sweden)

    Edward Halawa

    2018-01-01

    Full Text Available Australia is an energy net self-sufficient country rich in energy resources, from fossil-based to renewable energy. Australia, a huge continent with low population density, has witnessed impressive reduction in energy consumption in various sectors of activity in recent years. Currently, coal and natural gas are two of Australia’s major export earners, yet its abundant renewable energy resources such as solar, wind, and tidal, are still underutilized. The majority of Asian countries, on the other hand, are in the middle of economic expansion, with increasing energy consumption and lack of energy resources or lack of energy exploration capability becoming a serious challenge. Electricity interconnection linking two or more independent grids within a country or at cross-border or regional levels has found its way into electricity markets worldwide. This concept allows for electricity exchanges that lead to optimized use and sharing of electricity generated from different sources. The interconnection also enables the long distance exploitation of renewable energy which would otherwise be physically impossible. ASEAN (Association of Southeast Asian Nations and other regional groupings in Asia have initiated a number of interconnections to gain economic benefits. Asian’s hunger for energy for its economic development, climate change that has become a global and urgent issue to be solved, and Australia’s abundant renewable energy resources have all prompted increasing interest in a super-grid interconnection linking Australia to Asian grids, the Australian–Asian (Power Grid (AAG. This paper overviews the existing grid interconnections as well as current initiatives at domestic, sub-regional, and regional levels worldwide, with a particular focus on Asia. The paper concludes with a critical appraisal on the benefits, potential, challenges and issues to be encountered by the AAG initiative.

  11. TRAINING OF THE STATE PRESIDENT'S UNIT

    African Journals Online (AJOL)

    The primary function of the State President's Unit is to protect the head of state - not his person as is generally believed, but his authority over the state. Ironically, the ceremonial performances of the State President's Unit lead people to believe that they are only capable of doing drill exer- cises. However, upon investigating.

  12. 16 CFR 5.59 - Presiding official.

    Science.gov (United States)

    2010-01-01

    ... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Presiding official. 5.59 Section 5.59 Commercial Practices FEDERAL TRADE COMMISSION ORGANIZATION, PROCEDURES AND RULES OF PRACTICE STANDARDS OF... Chief Administrative Law Judge, who shall appoint an Administrative Law Judge to preside over the...

  13. President Ilves kohtus New Yorgis kohalike eestlastega

    Index Scriptorium Estoniae

    2009-01-01

    President Toomas Hendrik Ilvese kohtumisest New Yorgi Eesti Majas kohaliku eestlaskonnaga. Ilmunud ka: Eesti Elu 2. okt. 2009, lk. 2, pealk.: President Ilves New Yorgi Eesti Majas; ingl. k. lk. 11, pealk.: Ilves met with local Estonians in New York. Töövisiit Ameerika Ühendriikidesse 22.-28.09.2009

  14. Estonia's minds key, says president / David Williamson

    Index Scriptorium Estoniae

    Williamson, David

    2008-01-01

    President Toomas Hendrik Ilves rääkis oma külaskäigul Walesi Eesti majanduslikust ja infotehnoloogilisest arengust, Venemaa kasvavast autoritaarsusest, rahvusvahelise õiguse tähtsusest väikeriikide kaitsel. Vabariigi President töövisiidil Ühendkuningriigis 15.-17.10.2008

  15. Participative Leadership: Perspectives of Community College Presidents

    Science.gov (United States)

    Grasmick, Lauren; Davies, Timothy Gray; Harbour, Clifford P.

    2012-01-01

    This grounded theory study addressed the issue of how community college presidents foster active, broad-based participation in campus decision-making processes. This study was based on in-depth interviews with nationally recognized community college presidents selected on the basis of their work in implementing participative governance within…

  16. President hoiatas lati langetamise eest / Marju Himma

    Index Scriptorium Estoniae

    Himma, Marju

    2009-01-01

    President Toomas Hendrik Ilvese kõnest Tartu Ülikoolis emakeelse ülikooli 90. aastapäeva aktusel 1. detsembril 2009. Vt. ka foto lk. 1: Eesti Vabariigi president Toomas Hendrik Ilves õnnitles ülikooli uut audoktorit Andres Tauli. Foto on ilmunud ka: Eesti Elu = Estonian Life 18. dets. 2009, lk. 13

  17. Vabariigi President : "Tuleb endal julge olla"

    Index Scriptorium Estoniae

    2007-01-01

    President Toomas Hendrik Ilvese sõnavõtust 21. oktoobril 2007 Võru keskväljakul, kus tähistati 20 aasta möödumist päevast, kui Võru noored astusid vastu okupatsioonivõimude keeldudele ja repressioonidele. Ingl. k. ilmunud ka: Vaba Eesti Sõna 25. okt. 2007, lk. 12, pealk.: President Ilves: One must be brave oneself

  18. President Ilves kõneles Saint Gallenis

    Index Scriptorium Estoniae

    2009-01-01

    President Toomas Hendrik Ilves esines 9. mail 2009 Šveitsis, Saint Galleni 39. majandus- ja poliitikasümpoosionil kõnega teemal "20 aastat pärast Berliini müüri langemist - Euroopa uued väljakutsed". Vabariigi President töövisiidil Šveitsis 08.-09.05.2009

  19. Spielberg's "Lincoln" Fulfills the President's Emancipation Legacy

    Science.gov (United States)

    Wolfford, David

    2013-01-01

    Steven Spielberg's latest movie "Lincoln" updates Americans' national understanding of their sixteenth president and provides a partial, artful lesson on the passage of the Thirteenth Amendment that abolished slavery. Starring Daniel Day-Lewis, this movie will become a defining work on President Abraham Lincoln's character and leadership…

  20. President Ilves Aserbaidžaanis

    Index Scriptorium Estoniae

    2009-01-01

    Vabariigi President töövisiidil Aserbaidžaanis 12.-15.01.2009. Eesti president kohtus Aserbaidžaani riigipea Ilham Alijevi ja peaministri Artur Rasizadega. Eesti ja Aserbaidžaani riigipead osalesid ka 13. jaanuaril 2009 Bakuus infotehnoloogia kallakuga ärifoorumi avamisel

  1. President läheb Moskvasse

    Index Scriptorium Estoniae

    2010-01-01

    President Toomas Hendrik Ilves teatas, et osaleb 9. mail 2010 Teise maailmasõja Euroopa lahingute lõpu aastapäeva üritusel Moskvas. President Dmitri Medvedevi isikliku kutse Eesti presidendile andis üle Venemaa suursaadik Eestis

  2. Why New Presidents Can't Sleep

    Science.gov (United States)

    Martin, James; Samels, James E.

    2004-01-01

    The pressures on new college presidents begin before the new leaders even arrive on campus. In this article, the authors explain why many new campus chiefs are leaving the job earlier than their predecessors. An unforgiving set of expectations is swiftly placed in new presidents--often before their first day on campus--by students, faculty, and…

  3. Towards critical performance considerations for using office buildings as a power flexibility resource-a survey

    NARCIS (Netherlands)

    Aduda, K.O.; Labeodan, T.; Zeiler, W.

    2018-01-01

    The continued growth in variable renewable energy sources (VRES) has created increased focus on the use of office buildings for power flexibility activities. Office buildings uniquely present opportunities for relatively easy control adaptation during power flexibility activities given their large

  4. The Impact of Load Carriage on Measures of Power and Agility in Tactical Occupations: A Critical Review

    Directory of Open Access Journals (Sweden)

    Aaron Joseph

    2018-01-01

    Full Text Available The current literature suggests that load carriage can impact on a tactical officer’s mobility, and that survival in the field may rely on the officer’s mobility. The ability for humans to generate power and agility is critical for performance of the high-intensity movements required in the field of duty. The aims of this review were to critically examine the literature investigating the impacts of load carriage on measures of power and agility and to synthesize the findings. The authors completed a search of the literature using key search terms in four databases. After relevant studies were located using strict inclusion and exclusion criteria, the studies were critically appraised using the Downs and Black Checklist and relevant data were extracted and tabled. Fourteen studies were deemed relevant for this review, ranging in percentage quality scores from 42.85% to 71.43%. Outcome measures used in these studies to indicate levels of power and agility included short-distance sprints, vertical jumps, and agility runs, among others. Performance of both power and agility was shown to decrease when tactical load was added to the participants. This suggests that the increase in weight carried by tactical officers may put this population at risk of injury or fatality in the line of duty.

  5. The Impact of Load Carriage on Measures of Power and Agility in Tactical Occupations: A Critical Review.

    Science.gov (United States)

    Joseph, Aaron; Wiley, Amy; Orr, Robin; Schram, Benjamin; Dawes, J Jay

    2018-01-07

    The current literature suggests that load carriage can impact on a tactical officer's mobility, and that survival in the field may rely on the officer's mobility. The ability for humans to generate power and agility is critical for performance of the high-intensity movements required in the field of duty. The aims of this review were to critically examine the literature investigating the impacts of load carriage on measures of power and agility and to synthesize the findings. The authors completed a search of the literature using key search terms in four databases. After relevant studies were located using strict inclusion and exclusion criteria, the studies were critically appraised using the Downs and Black Checklist and relevant data were extracted and tabled. Fourteen studies were deemed relevant for this review, ranging in percentage quality scores from 42.85% to 71.43%. Outcome measures used in these studies to indicate levels of power and agility included short-distance sprints, vertical jumps, and agility runs, among others. Performance of both power and agility was shown to decrease when tactical load was added to the participants. This suggests that the increase in weight carried by tactical officers may put this population at risk of injury or fatality in the line of duty.

  6. National conference of the CLI Presidents; Conference nationale des Presidents de CLI

    Energy Technology Data Exchange (ETDEWEB)

    Lacoste, A

    2000-07-01

    This document presents the subjects discussed during the 11. national conference of the CLI Presidents. The subjects are proposed in discussion or speech form. They concern the following matter: the annual result of the factory inspection in the electric power plants; the relations between the CLI (Commission on Local Information) and the CSSIN (Superior Council on the Safety and the Nuclear Information); the Tokai-Mura accident and the teaching brought in France; the crisis exercise of Nogent-sur Seine; a presentation of the future Internet site of the Nuclear Safety Authority. The document also includes a synthesis of the working group reflexions concerning the CLI part in a crisis management and in the public information. (A.L.B.)

  7. Chief of Staff, Office of the President | IDRC - International ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Maintaining fluid communications in between the President's Office and all ... Prepares the President for important meetings and events. ... at the request of the President, ad-hoc working groups of staff as needed to solve any internal issues.

  8. Presidents forgive Polish no-show / Talis Saule Archdeacon

    Index Scriptorium Estoniae

    Archdeacon, Talis Saule

    2007-01-01

    30. oktoobril 2007 Riias kohtunud Läti president Valdis Zatlers, Leedu president Valdas Adamkus ja Eesti president Toomas Hendrik Ilves olid optimistlikud kolme riigi ja Poola koostöö osas tuumaelektrijaama projektis

  9. Power, Meaning, and Identity: Critical Sociology of Education in the United States.

    Science.gov (United States)

    Apple, Michael W.

    1996-01-01

    Provides an overview of the main theories, developments, and literature of critically-oriented sociology. Pays particular attention to the politics of meaning including critical discourse analysis, identity politics, racial formation, and political economy and the labor process. Concludes with a discussion of the tensions between postmodern and…

  10. A critical review on energy, exergy, exergoeconomic and economic (4-E) analysis of thermal power plants

    OpenAIRE

    Kumar, Ravinder

    2016-01-01

    The growing energy supply, demand has created an interest towards the plant equipment efficiency and the optimization of existing thermal power plants. Also, a thermal power plant dependency on fossil fuel makes it a little bit difficult, because of environmental impacts has been always taken into consideration. At present, most of the power plants are going to be designed by the energetic performance criterion which is based on the first law of thermodynamics. Sometimes, the system energy ba...

  11. Jacques Delors - President de la Commission Europeenne

    Directory of Open Access Journals (Sweden)

    Dacian Graţian GAL

    2005-02-01

    Full Text Available This article refers to the President of the European Commission between 1985- 1995, Jacques Delors. He was the single person who exercised the presidency of the European Commission during 10 years and this period was one of the most important for the European construction: the achievement of the Single Market, the development of the Single Currency Unit project, of the new common politics, the enlargement of the European Union from 12 members to 15 members etc. Due the contribution of his presidency to the European construction, Jacques Delors is one of the parents of the European construction and one of the most important political men of the XX century.  

  12. Vabariigi President esines ÜRO Peaassambleel

    Index Scriptorium Estoniae

    2007-01-01

    ÜRO Peaassamblee 62. istungjärgul kõneles president Toomas Hendrik Ilves kliimamuutuse, küberjulgeoleku, kriiside reguleerimise ja rahvusvaheliste organisatsioonide koostöö teemadel. Ilmunud ka: Koit 29. sept. 2007, lk. 6; Eesti Elu 28. sept. 2007, lk. 2; ingl. k. Vaba Eesti Sõna 4. okt. 2007, lk. 12, pealk.: The President of the Republic Spoke to the UN General Assembly. Vabariigi President töövisiidil Ameerika Ühendriikides 20.-26.09.2007

  13. Critical experiments supporting close proximity water storage of power reactor fuel. Technical progress report

    International Nuclear Information System (INIS)

    Baldwin, M.N.; Hoovler, G.S.; Eng, R.L.; Welfare, F.G.

    1979-07-01

    Close-packed storage of LWR fuel assemblies is needed in order to expand the capacity of existing underwater storage pools. This increased capacity is required to accommodate the large volume of spent fuel produced by prolonged onsite storage. To provide benchmark criticality data in support of this effort, 20 critical assemblies were constructed that simulated a variety of close-packed LWR fuel storage configurations. Criticality calculations using the Monte Carlo KENO-IV code were performed to provide an analytical basis for comparison with the experimental data. Each critical configuration is documented in sufficient detail to permit the use of these data in validating calculational methods according to ANSI Standard N16.9-1975

  14. Critical Review on Power in Organization: Empowerment in Human Resource Development

    Science.gov (United States)

    Jo, Sung Jun; Park, Sunyoung

    2016-01-01

    Purpose: This paper aims to analyze current practices, discuss empowerment from the theoretical perspectives on power in organizations and suggest an empowerment model based on the type of organizational culture and the role of human resource development (HRD). Design/methodology/approach: By reviewing the classic viewpoint of power, Lukes'…

  15. A critical review on energy, exergy, exergoeconomic and economic (4-E analysis of thermal power plants

    Directory of Open Access Journals (Sweden)

    Ravinder Kumar

    2017-02-01

    Full Text Available The growing energy supply, demand has created an interest towards the plant equipment efficiency and the optimization of existing thermal power plants. Also, a thermal power plant dependency on fossil fuel makes it a little bit difficult, because of environmental impacts has been always taken into consideration. At present, most of the power plants are going to be designed by the energetic performance criterion which is based on the first law of thermodynamics. Sometimes, the system energy balance is not sufficient for the possible finding of the system imperfections. Energy losses taking place in a system can be easily determined by using exergy analysis. Hence, it is a powerful tool for the measurement of energy quality, thereby helps to make complex thermodynamic systems more efficient. Nowadays, economic optimization of plant is also a big problem for researchers because of the complex nature. At a viewpoint of this, a comprehensive literature review over the years of energy, exergy, exergoeconomic and economic (4-E analysis and their applications in thermal power plants stimulated by coal, gas, combined cycle and cogeneration system have been done thoroughly. This paper is addressed to those researchers who are doing their research work on 4-E analysis in various thermal power plants. If anyone extracts an idea for the development of the concept of 4-E analysis using this article, we will achieve our goal. This review also indicates the scope of future research in thermal power plants.

  16. 46 CFR 201.86 - Presiding officer.

    Science.gov (United States)

    2010-10-01

    ... rotation so far as practicable, unless the Administration shall designate one or more of its officials to serve as presiding officer(s) in hearings required by statute, or member(s) of the staff in proceedings...

  17. Vabariigi President õnnitles maailmameister Gerd Kanterit

    Index Scriptorium Estoniae

    2007-01-01

    President Toomas Hendrik Ilves helistas Gerd Kanterile, kes võitis Osakas kergejõustiku maailmameistrivõistlustel kettaheites kuldmedali. Riigipea õnnitles G. Kanterit maailmameistri tiitli puhul ja kutsus ta Eestisse saabumise järel Kadriorgu

  18. 78 FR 54238 - President's Export Council; Meeting

    Science.gov (United States)

    2013-09-03

    ... DEPARTMENT OF COMMERCE International Trade Administration President's Export Council; Meeting AGENCY: International Trade Administration, U.S. Department of Commerce. ACTION: Notice of an open...; understanding best value in government procurement; de minimis reform; intellectual property protections in the...

  19. President Andrus Aljase ohtlik lend / Paavo Kangur

    Index Scriptorium Estoniae

    Kangur, Paavo, 1966-

    2009-01-01

    Estonian Airi president ja juhatuse esimees Andrus Aljas ettevõtte arengustsenaariumitest ja tegevusplaanidest järgmisteks aastateks. Estonian Airi positsioonist lennuturul. Vt. samas: Andrus Aljas; Fakte; Andrus Aljas: minu tööpäev

  20. Herman D. Stein (USA), President 1968 - 1976

    OpenAIRE

    Kendall, Katherine A.

    2008-01-01

    Herman Stein, President of the International Association of Schools of Social Work from 1968 - 1976, has for more than sixty years excelled as an educator, scholar, internationalist, university administrator, and leader in a variety of professional associations.

  1. A president's funeral / Rokas M. Tracevskis

    Index Scriptorium Estoniae

    Tracevskis, Rokas M.

    2010-01-01

    Leedu endise presidendi Algirdas Brazauskase matustest 1. juulil 2010 Vilniuses võttis osa ka president Toomas Hendrik Ilves. Konfliktist katoliku kiriku esindajatega, kes ei tahtnud lubada Algirdas Brazauskase kirstu toomist Vilniuse katedraali

  2. EU must accept Turkey's membership, Estonian president

    Index Scriptorium Estoniae

    2010-01-01

    President Toomas Hendrik Ilvese ja Türgi presidendi Abdullah Güli ühisel pressikonverentsil Ankaras avaldas Eesti riigipea toetust Türgi liitumisele Euroopa Liiduga. Ametlik visiit Türgi Vabariiki 15.-21.04.2010

  3. President Ilves kohtus Euroopa Komisjoni presidendiga

    Index Scriptorium Estoniae

    2007-01-01

    20. detsembril 2007 kohtus president Toomas Hendrik Ilves Kadriorus Euroopa Komisjoni presidendi Jose Manuel Barrosoga. Kõne all olid Euroopa Liidu ühtne välispoliitika, laienemis- ja naabruspoliitika, Läänemere keskkonnaprobleemid ja energiajulgeolek

  4. President nimetas ametisse suursaadikud Maltal ja Hollandis

    Index Scriptorium Estoniae

    2006-01-01

    President Arnold Rüütel nimetas Andres Tomasbergi Eesti erakorraliseks ja täievoliliseks suursaadikuks Maltal ning Gita Kalmeti Eesti erakorraliseks ja täievoliliseks suursaadikuks Hollandis. Allk.: BNS

  5. President viidi erilennukiga lennukikandjat uudistama / Katrin Rohtla

    Index Scriptorium Estoniae

    Rohtla, Katrin, 1966-

    2007-01-01

    President Toomas Hendrik Ilves lendas ameeriklaste organiseeritud lennuga Sitsiiliasse, et sealt sõita erilennuki pardal USA lennukikandjale USS Enterprise. Koos presidendiga käisid lennukikandjat uurimas Riigikogu esimees Ene Ergma ja Riigikogu liige Mati Raidma

  6. Professionals Cultivations: critical to the safe operation & sustainable development of nuclear power

    International Nuclear Information System (INIS)

    Zheng, Mingguang

    2017-01-01

    Challenges to nuclear power development: Challenges to nuclear power: •Public acceptance & confidences shaking after SAs •Ecology concerning seriously on rad-waste & spent fuel •Both AP1000 & EPR delayed with investment greatly increased •Economic competition from Renewable & marginal effects from severe regulatory guides; Challenges from HR: •No peoples willing to enter industry for countries with NP phased out •No motivations to develop or innovate the new technology for countries with NP operation but no further planning •Professionals need badly for developing countries looking for more nuclear power •HR setup the balance between money & missions, prides & success

  7. President saatis teele Estcoy-6 / Oliver Kund

    Index Scriptorium Estoniae

    Kund, Oliver

    2008-01-01

    President Toomas Hendrik Ilves kohtus peagi Afganistani suunduva jalaväekompaniiga Estcoy-6. Riigipea andis sõjaväelastele muuhulgas edasi kiidusõnad USA asepresidendilt Dick Cheney'lt, välisminister Condoleezza Rice'ilt ja USA keskväejuhatuse relvajõudude keskregiooni väejuhatuse staabi CENTCOM ülematelt. Juuresoleval fotol president T. H. Ilves koos miinipildujarühma nooremseersantide Janar Narme ja Aron Haljastega

  8. Battery Power Management in Heavy-duty HEVs based on the Estimated Critical Surface Charge

    Science.gov (United States)

    2011-03-01

    energy flows through the system reach up to the marginal values during aggressive acceleration or braking . The underlying phenomenon determining the...the system reach up to the marginal values during aggressive acceleration or braking . The underlying phenomenon determining the limits is closely...where Pbatt.min is the minimum allowable battery power. When negative power demand is requested by the driver, regenerative braking mode is

  9. US energy policy under president Clinton. An outlook

    International Nuclear Information System (INIS)

    McCracken, J.E.

    1993-01-01

    During the election, Bill Clinton did speak of four guiding principles that would be behind his energy policy. And they are: increased energy efficiency and conservation, the expanded use of renewable energy sources, the greater use of natural gas, and the establishment of a safe, environmentally-sound energy framework. It is important to remember that President Clinton holds views on nuclear power that are firmly in the mainstream of current American public opinion. The President does not see the need to close down existing plants. There is no talk of a nuclear phase-out in the United States. On the other hand, contrary to past administrations, there will not be a promotion of nuclear power, primarily for two reasons: 1. There is the belief that they are not economically competitive at this time, 2. There is the vaguer notion that people do not want them right now. So, in the short term, nuclear power increasingly will be left to the market place. So ultimately, the fate of nuclear power in the United States will not be determined by the political ideology of the White House's inhabitant, but by the economic competitiveness of the industry. (orig./HSCH)

  10. Reliability analysis of scram system of a critical nuclear power plant

    International Nuclear Information System (INIS)

    Vieira Neto, A.S.; Souza Borges, W. de

    1986-01-01

    The object of this paper is to show the relevancy of reliability analysis of nuclear systems as a mean of evaluating their prospect performance in design phase. For this purpose a typical scram system design for light water cooled critical facilities is analized to verify the effects of alternative maintenance procedure and design redundancies in realibility characteristics. (Author) [pt

  11. GERMANY G20 PRESIDENCY. THE TEST BY TRUMP

    Directory of Open Access Journals (Sweden)

    М В Ларионова

    2017-12-01

    Full Text Available For almost ten years the G20 brings together the leaders of advanced countries and countries with emerging economy to govern shared challenges. Assessments of its role range from a very skeptical to a highly positive judgement. Nevertheless, the G20 remains a key forum for economic cooperation in the face of shifting values and powers, rising protectionism, environmental depletion and increasing anti-globalization. Each presidency is unique in its search for a balance between national priorities and partners’ interests in the process of charting agenda and forging collective decisions. High expectations of Ger-man G20 presidency were defined by internal and external factors. First, the demand for a response to the increasing challenges of de-globalization, economic inequality and climate change. Second, Germany’s unique potential to enhance G20 effectiveness and consolidate the forum’s role as a global public good sponsor due to the country’s economic power and diplomatic influence. The article reviews German G20 presidency priorities and outcomes in the context of internal and external challenges: the US 45th President’s position on international trade and climate, Brexit negotia-tions, national September parliamentary elections in Germany, the country’s significant and persistent current account surplus. The author claims that G20 has made substantial progress under German presi-dency. Geopolitical problems did not prevent the leaders from crafting decisions on key economic agenda issues. Six ministerial meetings were concluded by adoption of declarations, cooperation on digital economy and health was institutionalized, the leaders agreed 15 documents, including the Declaration and Action Plan on Countering Terrorism, and made more than 500 commitments. The summit hosted around 70 bilateral leaders’ meetings. Thus, despite divergences and tensions between G20 members, internal and external challenges, G20 laid the foundation for

  12. ENS 1989: the president's report

    International Nuclear Information System (INIS)

    Hennies, H.H.

    1990-01-01

    The nuclear power generating situations of some member countries are described. France continues to lead in nuclear power generation and has consolidated its position with an 11% increase of electricity in 1989. Further topics addressed: USSR Joins ENS, Conference Manual, Student Exchange, Nuclear Europe, Nucleus, PIME'89, NucNet, Women and Nuclear, 200 Years of Uranium, Global Warming, New Leadership, Supporting Members and Thanks

  13. President's Inaugural Address: We Call It School Nursing

    Science.gov (United States)

    Mattey, Beth

    2015-01-01

    The incoming President of the National Association of School Nurses (NASN) traditionally outlines the theme for their presidency during their inaugural address. This address is given by incoming President of the NASN, Beth Mattey, who discusses previous themes that supported the mission of NASN, but changed every two years with each new president.…

  14. Alla kukkunud lennukiga on reisinud ka Eesti president / Kristi Leppik

    Index Scriptorium Estoniae

    Leppik, Kristi

    2010-01-01

    Smolenski lähedal Venemaal 10. aprillil 2010 toimunud lennuõnnetusest, milles hukkus Poola president Lech Kaszynski, tema abikaasa Maria ja rohkearvuline kõrgetasemeline Poola ametlik delegatsioon. Sama lennukiga TU-157 lendasid Poola president L. Kaczynski, Leedu president Valdas Adamkus, Eesti president Toomas Hendrik Ilves ja Läti välisminister Maris Riekstinsh 12. augustil 2008 toetusvisiidile Gruusiasse

  15. Analysis of the critical and first full power operating cores for PARR using leu oxide fuel

    International Nuclear Information System (INIS)

    Khan, L.A.; Qazi, M.K.; Bokhari, I.H.; Fazal, R.

    1989-10-01

    This paper explains the analysis for determining the first full power operating core for PARR using LEU oxide fuel. The core configuration selected for this first full power operation contains about 6.13 kg of U-235 distributed in 19 standard and five control fuel elements. The neutron flux level is doubled when core is shifted from 5MW to 10 MW. Total nuclear power peaking factor of the core is 2.03. The analysis shows that the core can be operated safely at 5 MW with a flow rate of 520 meter cube per hour and at 10 MW with a flow rate of 900 meter cube per hour. (A.B.). 10 figs

  16. A Critical Review of Wireless Power Transfer via Strongly Coupled Magnetic Resonances

    Directory of Open Access Journals (Sweden)

    Xuezhe Wei

    2014-07-01

    Full Text Available Strongly coupled magnetic resonance (SCMR, proposed by researchers at MIT in 2007, attracted the world’s attention by virtue of its mid-range, non-radiative and high-efficiency power transfer. In this paper, current developments and research progress in the SCMR area are presented. Advantages of SCMR are analyzed by comparing it with the other wireless power transfer (WPT technologies, and different analytic principles of SCMR are elaborated in depth and further compared. The hot research spots, including system architectures, frequency splitting phenomena, impedance matching and optimization designs are classified and elaborated. Finally, current research directions and development trends of SCMR are discussed.

  17. THE SECURITY AND CRITICAL LEVELS OF PHYSICAL ACTIVITY FOR TRAINED AND UNTRAINED PERSONS IN MUSCLE PERFORMANCE POWER ORIENTATION.

    Science.gov (United States)

    Chernozub, A A

    The paper studied the problem of finding the optimal methodology for determining the safety and critical load conditions for the body trained and untrained people in the process of training the force pool. It was found that for trained individuals who have a sufficient level of adaptation to the power load, the use of “standard” modes of operation in the course of employment by fitness power safely. However, the problematic issue is that to the untrained troops, it is almost impossible to determine the safe load parameters using conventional techniques, which are mainly used in cyclic sports. Thus, the solution to this problem lies in the fact that using the integral method for estimating the value of power loads and a computer program for determining the relative weight of the index weights, safety and critical load parameters were calculated for untrained persons. At the same time, studied the biochemical parameters of blood (testosterone, cortisol, and lactate dehydrogenase activity) fixed after exercise, compared with the state of rest, confirmed our calculations clearly enough.

  18. A power law of order 1/4 for critical mean field Swendsen-Wang dynamics

    CERN Document Server

    Long, Yun; Ning, Weiyang; Peres, Yuval

    2014-01-01

    The Swendsen-Wang dynamics is a Markov chain widely used by physicists to sample from the Boltzmann-Gibbs distribution of the Ising model. Cooper, Dyer, Frieze and Rue proved that on the complete graph K_n the mixing time of the chain is at most O(\\sqrt{n}) for all non-critical temperatures. In this paper the authors show that the mixing time is \\Theta(1) in high temperatures, \\Theta(\\log n) in low temperatures and \\Theta(n^{1/4}) at criticality. They also provide an upper bound of O(\\log n) for Swendsen-Wang dynamics for the q-state ferromagnetic Potts model on any tree of n vertices.

  19. A comparative study of formal methods for safety critical software in nuclear power plant

    International Nuclear Information System (INIS)

    Sohn, Se Do; Seong Poong Hyun

    2000-01-01

    The requirement of ultra high reliability of the safety critical software can not be demonstrated by testing alone. The specification based on formal method is recommended for safety system software. But there exist various kinds of formal methods, and this variety of formal method is recognized as an obstacle to the wide use of formal method. In this paper six different formal method have been applied to the same part of the functional requirements that is calculation algorithm intensive. The specification results were compared against the criteria that is derived from the characteristics that good software requirements specifications should have and regulatory body recommends to have. The application experience shows that the critical characteristics should be defined first, then appropriate method has to e selected. In our case, the Software Cost Reduction method was recommended for internal condition or calculation algorithm checking, and state chart method is recommended for the external behavioral description. (author)

  20. Submersion criticality safety of tungsten-rhenium urania cermet fuel for space propulsion and power applications

    Energy Technology Data Exchange (ETDEWEB)

    Craft, A.E., E-mail: aaron.craft@inl.gov [Center for Space Nuclear Research (CSNR), INL, Idaho Falls, ID (United States); O’Brien, R.C., E-mail: Robert.OBrien@inl.gov [Center for Space Nuclear Research (CSNR), INL, Idaho Falls, ID (United States); Howe, S.D., E-mail: Steven.Howe@inl.gov [Center for Space Nuclear Research (CSNR), INL, Idaho Falls, ID (United States); King, J.C., E-mail: kingjc@mines.edu [Nuclear Science and Engineering Program, Metallurgical and Materials Engineering Department, Colorado School of Mines, Golden, CO 80401 (United States)

    2014-07-01

    Highlights: • Criticality safety studies consider a generic space nuclear reactor in reentry scenarios. • Describes the submersion criticality behavior for a reactor fueled with a tungsten cermet fuel. • Study considers effects of varying fuel content, geometry, and other conditions. - Abstract: Nuclear thermal rockets are the preferred propulsion technology for a manned mission to Mars, and tungsten–uranium oxide cermet fuels could provide significant performance and cost advantages for nuclear thermal rockets. A nuclear reactor intended for use in space must remain subcritical before and during launch, and must remain subcritical in launch abort scenarios where the reactor falls back to Earth and becomes submerged in terrestrial materials (including seawater, wet sand, or dry sand). Submersion increases reflection of neutrons and also thermalizes the neutron spectrum, which typically increases the reactivity of the core. This effect is typically very significant for compact, fast-spectrum reactors. This paper provides a submersion criticality safety analysis for a representative tungsten/uranium oxide fueled reactor with a range of fuel compositions. Each submersion case considers both the rhenium content in the matrix alloy and the uranium oxide volume fraction in the cermet. The inclusion of rhenium significantly improves the submersion criticality safety of the reactor. While increased uranium oxide content increases the reactivity of the core, it does not significantly affect the submersion behavior of the reactor. There is no significant difference in submersion behavior between reactors with rhenium distributed within the cermet matrix and reactors with a rhenium clad in the coolant channels. The combination of the flooding of the coolant channels in submersion scenarios and the presence of a significant amount of spectral shift absorbers (i.e. high rhenium concentration) further decreases reactivity for short reactor cores compared to longer cores.

  1. Requirement analysis of the safety-critical software implementation for the nuclear power plant

    International Nuclear Information System (INIS)

    Chang, Hoon Seon; Jung, Jae Cheon; Kim, Jae Hack; Nam, Sang Ku; Kim, Hang Bae

    2005-01-01

    The safety critical software shall be implemented under the strict regulation and standards along with hardware qualification. In general, the safety critical software has been implemented using functional block language (FBL) and structured language like C in the real project. Software design shall comply with such characteristics as; modularity, simplicity, minimizing the use of sub-routine, and excluding the interrupt logic. To meet these prerequisites, we used the computer-aided software engineering (CASE) tool to substantiate the requirements traceability matrix that were manually developed using Word processors or Spreadsheets. And the coding standard and manual have been developed to confirm the quality of software development process, such as; readability, consistency, and maintainability in compliance with NUREG/CR-6463. System level preliminary hazard analysis (PHA) is performed by analyzing preliminary safety analysis report (PSAR) and FMEA document. The modularity concept is effectively implemented for the overall module configurations and functions using RTP software development tool. The response time imposed on the basis of the deterministic structure of the safety-critical software was measured

  2. Anti-nuclear activities and critics concerning nuclear power plant sites

    International Nuclear Information System (INIS)

    Rhee, We-Beg

    2000-01-01

    Korea has dynamic nuclear power expansion programs, operating 16 nuclear units producing 13710 MW in total located on 4 different sites. Last year, nuclear power supplied over 40 % of national total electricity demands. In 1998, Korean government initiated re-designation work investigating circumstance changes to rule out the unnecessary sites in consideration of a long-term power supply. Korean government has determined to expand the Ulchin site and to designate one point of Woolju county as a new candidate site, and ruled out the rest candidate sites at the end of 1998. About such a governmental measure, the two areas show different reactions. Ulchin where nuclear power plant has been operated safely for about 10 years was likely to accept the governmental determination in spite of some opposition and called for several financial supports for local development. WooIju county, however, showed a strong opposition among local environmental groups and autonomous politicians, and they presented a variety of anti-nuclear activities including demonstrations mainly at the neighbouring metropolis, Ulsan city

  3. Powerful Learning Environments: The Critical Link between School and Classroom Cultures.

    Science.gov (United States)

    Finnan, Christine; Schnepel, Katherine C.; Anderson, Lorin W.

    2003-01-01

    Evaluated classrooms within four Accelerated Schools Project (ASP) schools, operationalizing the ASP principles, values, and concepts of a "powerful learning environment" (PLE), examining how similarly PLE was implemented in different classrooms and schools, and analyzing the relation between degree of implementation and differences in…

  4. Analyzing the topological, electrical and reliability characteristics of a power transmission system for identifying its critical elements

    International Nuclear Information System (INIS)

    Zio, E.; Golea, L.R.

    2012-01-01

    The subject of this paper is the analysis of an electrical transmission system with the objective of identifying its most critical elements with respect to failures and attacks. The methodological approach undertaken is based on graph-theoretical (topological) network analysis. Four different perspectives of analysis are considered within the formalism of weighed networks, adding to the purely topological analysis of the system, the reliability and electrical characteristics of its components. In each phase of the analysis: i) a graph-theoretical representation is offered to highlight the structure of the most important system connections according to the particular characteristics examined (topological, reliability, electrical or electrical-reliability), ii) the classical degree index of a network node is extended to account for the different characteristics considered. The application of these concepts of analysis to an electrical transmission system of literature confirms the importance of different perspectives of analysis on such a critical infrastructure. - Highlights: ► We analyze a power system from topological, reliability and electrical perspectives. ► We rank critical components within a vulnerability assessment framework. ► We compute an extended degree to rank critical energy paths. ► We compare several analytical approaches and provide a table for choosing among them. ► We suggest network changes to increase the reliability of highly loaded energy paths.

  5. Critical group doses arising from routine aquatic discharges of activity from the Heysham 2 nuclear power station

    International Nuclear Information System (INIS)

    Maul, P.R.

    1986-07-01

    An assessment of critical group doses arising from routine discharges of activity to sea from the Heysham 2 nuclear power station has been undertaken using the CODAR2 computer program. The largest critical group dose rate was calculated to be 50 μSv/y, about 80 per cent of which arose from the external exposure of individuals occupying intertidal sediments of the Lune Estuary from the single nuclide 60 Co. CODAR2 employs a single well mixed local compartment for critical group calculations and can not include the effects of processes varying over the compartment. A more detailed study of the critical group exposure has been carried out using recently developed methods to assess the uncertainties and pessimisms involved in the CODAR2 calculations. It is concluded that these calculations are pessimistic by about a factor of 2, with a reference calculation using the more detailed methods giving a dose rate of 23 μSv/y for the Lune Estuary group. Further reductions in the dose estimate might be possible if site specific measurements of the concentration factor for Co on estuarine sediments and the sedimentation rate in the Lune Estuary could be made. (author)

  6. Critical Assessment of the Foundations of Power Transmission and Distribution Reliability Metrics and Standards.

    Science.gov (United States)

    Nateghi, Roshanak; Guikema, Seth D; Wu, Yue Grace; Bruss, C Bayan

    2016-01-01

    The U.S. federal government regulates the reliability of bulk power systems, while the reliability of power distribution systems is regulated at a state level. In this article, we review the history of regulating electric service reliability and study the existing reliability metrics, indices, and standards for power transmission and distribution networks. We assess the foundations of the reliability standards and metrics, discuss how they are applied to outages caused by large exogenous disturbances such as natural disasters, and investigate whether the standards adequately internalize the impacts of these events. Our reflections shed light on how existing standards conceptualize reliability, question the basis for treating large-scale hazard-induced outages differently from normal daily outages, and discuss whether this conceptualization maps well onto customer expectations. We show that the risk indices for transmission systems used in regulating power system reliability do not adequately capture the risks that transmission systems are prone to, particularly when it comes to low-probability high-impact events. We also point out several shortcomings associated with the way in which regulators require utilities to calculate and report distribution system reliability indices. We offer several recommendations for improving the conceptualization of reliability metrics and standards. We conclude that while the approaches taken in reliability standards have made considerable advances in enhancing the reliability of power systems and may be logical from a utility perspective during normal operation, existing standards do not provide a sufficient incentive structure for the utilities to adequately ensure high levels of reliability for end-users, particularly during large-scale events. © 2015 Society for Risk Analysis.

  7. The sensitivity of calculated doses to critical assumptions for the offsite consequences of nuclear power reactor accidents

    International Nuclear Information System (INIS)

    Moeller, M.P.; Scherpelz, R.I.; Desrosiers, A.E.

    1982-01-01

    This work analyzes the sensitivity of calculated doses to critical assumptions for offsite consequences following a PWR-2 accident at a nuclear power reactor. The calculations include three radiation dose pathways: internal dose resulting from inhalation, external doses from exposure to the plume, and external doses from exposure to contaminated ground. The critical parameters are the time period of integration for internal dose commitment and the duration of residence on contaminated ground. The data indicate the calculated offsite whole body dose will vary by as much as 600% depending upon the parameters assumed. When offsite radiation doses determine the size of emergency planning zones, this uncertainty has significant effect upon the resources allocated to emergency preparedness

  8. Survey of bayesian belif nets for quantitative reliability assessment of safety critical software used in nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Eom, H.S.; Sung, T.Y.; Jeong, H.S.; Park, J.H.; Kang, H.G.; Lee, K

    2001-03-01

    As part of the Probabilistic Safety Assessment of safety grade digital systems used in Nuclear Power plants research, measures and methodologies applicable to quantitative reliability assessment of safety critical software were surveyed. Among the techniques proposed in the literature we selected those which are in use widely and investigated their limitations in quantitative software reliability assessment. One promising methodology from the survey is Bayesian Belief Nets (BBN) which has a formalism and can combine various disparate evidences relevant to reliability into final decision under uncertainty. Thus we analyzed BBN and its application cases in digital systems assessment area and finally studied the possibility of its application to the quantitative reliability assessment of safety critical software.

  9. Survey of bayesian belif nets for quantitative reliability assessment of safety critical software used in nuclear power plants

    International Nuclear Information System (INIS)

    Eom, H. S.; Sung, T. Y.; Jeong, H. S.; Park, J. H.; Kang, H. G.; Lee, K.

    2001-03-01

    As part of the Probabilistic Safety Assessment of safety grade digital systems used in Nuclear Power plants research, measures and methodologies applicable to quantitative reliability assessment of safety critical software were surveyed. Among the techniques proposed in the literature we selected those which are in use widely and investigated their limitations in quantitative software reliability assessment. One promising methodology from the survey is Bayesian Belief Nets (BBN) which has a formalism and can combine various disparate evidences relevant to reliability into final decision under uncertainty. Thus we analyzed BBN and its application cases in digital systems assessment area and finally studied the possibility of its application to the quantitative reliability assessment of safety critical software

  10. 75 FR 52929 - President's Export Council: Meeting of the President's Export Council

    Science.gov (United States)

    2010-08-30

    .... ACTION: Notice of an open meeting. SUMMARY: The President's Export Council will hold a meeting to discuss... how to promote U.S. exports, jobs, and growth. DATES: September 16, 2010 at 9:30 a.m. (EDT). ADDRESSES... trade and report to the President on its activities and on its recommendations for expanding U.S...

  11. Effects of the criticality accident at Tokai-mura on the public's attitude to nuclear power generation

    Energy Technology Data Exchange (ETDEWEB)

    Kitada, Atsuko [Institute of Social Research, Institute of Nuclear Safety System Inc., Mihama, Fukui (Japan); Hayashi, Chikio [The Institute of Statistical Mathematics, Tokyo (Japan)

    2000-09-01

    The objective of our study was to clarify the effects on the public's attitude of nuclear power and the criticality accident that occurred at the JCO plant in Tokai-mura, Ibaraki Prefecture. For this purpose, we conducted an awareness survey in the Kansai and Kanto areas two months after the accident. Analysis was made on the basis of the comparison of the survey results with the data that the Institute of Nuclear Safety System had accumulated through continuous awareness surveys on nuclear power generation (regular surveys) since 1993. The public's reactions were twofold. On one hand, there were emotional reactions about accidents in nuclear facilities and a reduction in the sense of security. On the other hand, there were reactions concerning the image of nuclear power plant workers and demand on electricity utilities for enhanced employee education and training. The latter reactions correspond to the problems pointed out after the JCO accident. Regarding the utilization of nuclear power generation, the opinion that 'the utilization of nuclear power generation is unavoidable' accounts for 60% of those surveyed. With the opinion that 'nuclear power generation should be utilized' added, 70% of those surveyed take an affirmative attitude to nuclear power utilization. This situation has remained about the same since 1998, the year before the JCO accident. Using the quantification method III to analyze a number of questionnaires about nuclear power generation such as the anxiety about it, we determined overall attitude indexes regarding nuclear power to perform a time sequence comparison. The comparison shows that the attitude after the JCO accident tended to be more negative than in 1998. However, no significant difference in the overall indexes is seen between 1993 and 1998. Judging the comparison results on the basis of the time span starting in 1993 allows us to conclude that the JCO accident has not greatly contributed to worsening

  12. Effects of the criticality accident at Tokai-mura on the public's attitude to nuclear power generation

    International Nuclear Information System (INIS)

    Kitada, Atsuko; Hayashi, Chikio

    2000-01-01

    The objective of our study was to clarify the effects on the public's attitude of nuclear power and the criticality accident that occurred at the JCO plant in Tokai-mura, Ibaraki Prefecture. For this purpose, we conducted an awareness survey in the Kansai and Kanto areas two months after the accident. Analysis was made on the basis of the comparison of the survey results with the data that the Institute of Nuclear Safety System had accumulated through continuous awareness surveys on nuclear power generation (regular surveys) since 1993. The public's reactions were twofold. On one hand, there were emotional reactions about accidents in nuclear facilities and a reduction in the sense of security. On the other hand, there were reactions concerning the image of nuclear power plant workers and demand on electricity utilities for enhanced employee education and training. The latter reactions correspond to the problems pointed out after the JCO accident. Regarding the utilization of nuclear power generation, the opinion that 'the utilization of nuclear power generation is unavoidable' accounts for 60% of those surveyed. With the opinion that 'nuclear power generation should be utilized' added, 70% of those surveyed take an affirmative attitude to nuclear power utilization. This situation has remained about the same since 1998, the year before the JCO accident. Using the quantification method III to analyze a number of questionnaires about nuclear power generation such as the anxiety about it, we determined overall attitude indexes regarding nuclear power to perform a time sequence comparison. The comparison shows that the attitude after the JCO accident tended to be more negative than in 1998. However, no significant difference in the overall indexes is seen between 1993 and 1998. Judging the comparison results on the basis of the time span starting in 1993 allows us to conclude that the JCO accident has not greatly contributed to worsening the attitude towards nuclear

  13. New technology for optimized I and C maintenance and management of ageing of critical equipment in nuclear power plants

    International Nuclear Information System (INIS)

    Hashemian, H.M.

    2000-01-01

    Advanced sensors and new testing and maintenance technologies have become available over the last ten years for nuclear power plants (NPPs) to replace outdated, obsolete, and troublesome instruments, provide for management of ageing of critical plant equipment, optimize maintenance activities, reduce maintenance costs and personnel radiation exposure, and at the same time, improve plant safety and availability. These new developments are reviewed in this TECDOC. The material covered here has been summarized from NUREG/CR-5501, a 1998 report written by H.M. Hashemian and his co-authors for the US Nuclear Regulatory Commission. (author)

  14. Selecting an Architecture for a Safety-Critical Distributed Computer System with Power, Weight and Cost Considerations

    Science.gov (United States)

    Torres-Pomales, Wilfredo

    2014-01-01

    This report presents an example of the application of multi-criteria decision analysis to the selection of an architecture for a safety-critical distributed computer system. The design problem includes constraints on minimum system availability and integrity, and the decision is based on the optimal balance of power, weight and cost. The analysis process includes the generation of alternative architectures, evaluation of individual decision criteria, and the selection of an alternative based on overall value. In this example presented here, iterative application of the quantitative evaluation process made it possible to deliberately generate an alternative architecture that is superior to all others regardless of the relative importance of cost.

  15. Critical factors supporting the confidence in U.S. nuclear power industries

    International Nuclear Information System (INIS)

    Yoshida, Tomoaki

    2004-01-01

    The risk informed regulation in U.S. is summarized and factors supporting the confidence in U.S. nuclear power industries are thought to be helpful to our country for improving the state of nuclear power industries. In U.S., on the basis of clear Regulatory Guide, an entrepreneur constructs and practices corrective action of nonconformance. A regulatory commission submitted by the nation watches their movements. The movements related to regulatory are opened to the people and they make a thousand preparations for the rule to make correct the insufficient part. These above system get good results in U.S. It is important in Japan that we are not going to get away with anything on the system satisfied above conditions and practice. The risk informed regulation, effectiveness of risk informed regulation supporting conditions, a part of NRC (Nuclear Regulatory Commission) and entrepreneur are described. (S.Y.)

  16. Identifying critical constraints for the maximum loadability of electric power systems - analysis via interior point method

    Energy Technology Data Exchange (ETDEWEB)

    Barboza, Luciano Vitoria [Sul-riograndense Federal Institute for Education, Science and Technology (IFSul), Pelotas, RS (Brazil)], E-mail: luciano@pelotas.ifsul.edu.br

    2009-07-01

    This paper presents an overview about the maximum load ability problem and aims to study the main factors that limit this load ability. Specifically this study focuses its attention on determining which electric system buses influence directly on the power demand supply. The proposed approach uses the conventional maximum load ability method modelled by an optimization problem. The solution of this model is performed using the Interior Point methodology. As consequence of this solution method, the Lagrange multipliers are used as parameters that identify the probable 'bottlenecks' in the electric power system. The study also shows the relationship between the Lagrange multipliers and the cost function in the Interior Point optimization interpreted like sensitivity parameters. In order to illustrate the proposed methodology, the approach was applied to an IEEE test system and to assess its performance, a real equivalent electric system from the South- Southeast region of Brazil was simulated. (author)

  17. Assessing Risk-Based Performance Indicators in Safety-Critical Systems for Nuclear Power Plants

    OpenAIRE

    TONT Gabriela

    2011-01-01

    The paper proposes framework for a multidisciplinary nuclear risk and safety assessment by modeling uncertainty and combining diverse evidence provided in such a way that it could be used to represent an entire argument about a system's dependability. The identified safety issues are being treated by means of probabilistic safety assessment (PSA). The behavior simulation of power plant in thepresence of risk factors is analyzed from the vulnerability, risk and functional safety viewpoints, hi...

  18. Standortdebatte: (Gender Mainstreaming und Herrschaftskritik A Debate of Placement: (Gender Mainstreaming and Criticism of Power

    Directory of Open Access Journals (Sweden)

    Eva Sänger

    2004-07-01

    Full Text Available Die Autorinnen des Bandes Feminismus, Gender, Geschlecht der schweizerischen Zeitschrift Widerspruch diskutieren die Chancen und Risiken von Gender-Mainstreaming-Strategien im Horizont des neoliberalen Gesellschaftsumbaus und fragen im Diskussionsteil nach den Erkenntnispotenzialen und herrschaftskritischen Perspektiven der feministischen Theorie bzw. poststrukturalistischer und konstruktivistischer Ansätze.The authors of the volume Feminismus, Gender, Geschlecht of the Swiss journal Widerspruch discuss the prospects and risks of gender-mainstreaming strategies in the context of neoliberal social restructuring. In the discussion section, they consider the potential and critical perspectives of feminist theory, i.e. poststructuralist and constructivist methods.

  19. Safety critical software design approach developed for Canadian nuclear power plants

    International Nuclear Information System (INIS)

    Ichiyen, M.M.; Joannou, P.K.

    1995-01-01

    Recently two methodologies were developed that comply with a high safety critical standard: the Rational Design Process, which can be characterized as a methodology based on state machines where the required behaviour of the software is defined using mathematical functions written in a notation which has a well defined syntax and semantics, and the Integrated Approach, which uses a graphical functional notation to specify the functional software requirements. The first implementations based on the two methodologies are discussed. Results from all phases of testing show a remarkably low number of errors, demonstrating that the new methodologies have indeed led to a higher demonstrable level of software reliability. (orig./HP) [de

  20. Effect of thermal processes on critical operation conditions of high-power laser diodes

    Energy Technology Data Exchange (ETDEWEB)

    Parashchuk, V V [Institute of Physics, Belarus Academy of Sciences, Minsk (Belarus); Vu Doan Mien [Institute of Materials Science, Vietnamese Academy of Science and Technology, Hanoi (Viet Nam)

    2013-10-31

    Using numerical and analytical techniques in a threedimensional approximation, we have modelled the effect of spatial thermoelastic stress nonuniformity in a laser diode – heat sink system on the output characteristics of the device in different operation modes. We have studied the influence of the pulse duration, the geometry of the laser system and its thermophysical parameters on the critical pump current density, in particular for state-of-the-art heat conductive substrate materials. The proposed approach has been used to optimise the laser diode assembly process in terms of the quality of laser crystal positioning (bonding) on a heat sink. (lasers)

  1. Energy and human welfare: a critical analysis. Volume I. The social costs of power production

    International Nuclear Information System (INIS)

    Commoner, B.; Boksenbaum, H.; Corr, M.

    1975-01-01

    Statements are presented of the Board of Directors of the American Association for the Advancement of Science and the Committee on Environmental Alterations. Following the Preface by Barry Commoner, eighteen papers are presented: Thermal Pollution and Its Control by Christopher T. Hill; Biologic Effects of Air Pollution by Robert Frank; Acid Rain by Gene E. Likens, F. Herbert Bormann, and Noye M. Johnson; Environmental Consequences of Extracting Coal by Michael Fortune; Reclamation of Strip Mine Spoil Banks in Wyoming by Morton May, Robert Lang, Leandro Lujan, Peter Jacoby, and Wesley Thompson; Oil Spills by Max Blumer, Howard L. Sanders, J. Fred Grassle, and George R. Hampson; Nuclear Power: Its Promise and Its Problems by Milton Shaw; Radioactivity from Fossil-Fuel and Nuclear Power Plants by J. E. Martin, E. D. Harward, D. T. Oakley, J. M. Smith, and P. H. Bedrosion; A Reevaluation of Reactor Safety by Daniel F. Ford; Management of Radioactive Wastes from the Use of Nuclear Fuel by George Berg; Storage of High Level Radioactive Wastes by William W. Hambleton; Plutonium and Public Health by Donald P. Geesaman; Radiation: The Invisible Casualties by John W. Gofman and Arthur R. Tamplin; The Need for National and International Systems to Provide Physical Security for Fissionable Materials by Theodore B. Taylor; and Nuclear Electric Power by Sheldon Novick

  2. Development and validation of advanced oxidation protective coatings for super critical steam power plant

    Energy Technology Data Exchange (ETDEWEB)

    Henderson, M.B.; Scheefer, M. [Alstom Power Ltd., Rugby (United Kingdom); Agueero, A. [Instituto Nacional de Tecnica Aerospacial (INTA) (Spain); Allcock, B. [Monitor Coatings Ltd. (United Kingdom); Norton, B. [Indestructible Paints Ltd. (United Kingdom); Tsipas, D.N. [Aristotle Univ. of Thessaloniki (Greece); Durham, R. [FZ Juelich (Germany); Xiang, Z. [Northumbria Univ. (United Kingdom)

    2006-07-01

    Increasing the efficiency of coal-fired power plant by increasing steam temperatures and pressures brings benefits in terms of cheaper electricity and reduced emissions, particularly CO{sub 2}. In recent years the development of advanced 9%Cr ferritic steels with improved creep strength has enabled power plant operation at temperatures in excess of 600 C, such that these materials are being exploited to construct a new generation of advanced coalfired plant. However, the move to higher temperatures and pressures creates an extremely hostile oxidising environment. To enable the full potential of the new steels to be achieved, it is vital that protective coatings are developed, validated under high temperature steam and applied to candidate components from the steam path. This paper reviews recent work conducted within the Framework V project ''Coatings for Supercritical Steam Cycles'' (SUPERCOAT) to develop and demonstrate advanced slurry and thermal spray coatings capable of providing steam oxidation protection at temperatures in excess of 620 C and up to 300 bar. The programme of work has demonstrated the feasibility of applying a number of candidate coatings to steam turbine power plant components and has generated long-term steam oxidation rate and failure data that underpin the design and application work packages needed to develop and establish this technology for new and retrofit plant. (orig.)

  3. The Measurement of Maximal (Anaerobic Power Output on a Cycle Ergometer: A Critical Review

    Directory of Open Access Journals (Sweden)

    Tarak Driss

    2013-01-01

    Full Text Available The interests and limits of the different methods and protocols of maximal (anaerobic power ( assessment are reviewed: single all-out tests versus force-velocity tests, isokinetic ergometers versus friction-loaded ergometers, measure of during the acceleration phase or at peak velocity. The effects of training, athletic practice, diet and pharmacological substances upon the production of maximal mechanical power are not discussed in this review mainly focused on the technical (ergometer, crank length, toe clips, methodological (protocols and biological factors (muscle volume, muscle fiber type, age, gender, growth, temperature, chronobiology and fatigue limiting in cycling. Although the validity of the Wingate test is questionable, a large part of the review is dedicated to this test which is currently the all-out cycling test the most often used. The biomechanical characteristics specific of maximal and high speed cycling, the bioenergetics of the all-out cycling exercises and the influence of biochemical factors (acidosis and alkalosis, phosphate ions… are recalled at the beginning of the paper. The basic knowledge concerning the consequences of the force-velocity relationship upon power output, the biomechanics of sub-maximal cycling exercises and the study on the force-velocity relationship in cycling by Dickinson in 1928 are presented in Appendices.

  4. The automatic programming for safety-critical software in nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jang Yeol; Eom, Heung Seop; Choi, You Rark

    1998-06-01

    We defined the Korean unique safety-critical software development methodology by modifying Dr. Harel`s statechart-based on formal methods in order to digitalized the reactor protection system. It is suggested software requirement specification guideline to specify design specification which is basis for requirement specification and automatic programming by the caused by shutdown parameter logic of the steam generator water level for Wolsung 2/3/4 unit SDS no.1 and simulated it by binding the Graphic User Interface (GUI). We generated the K and R C code automatically by utilizing the Statemate MAGNUM Sharpshooter/C code generator. Auto-generated K and R C code is machine independent code and has high productivity, quality and provability. The following are the summaries of major research and development. - Set up the Korean unique safety-critical software development methodology - Developed software requirement specification guidelines - Developed software design specification guidelines - Reactor trip modeling for steam generator waster level Wolsung 2/3/4 SDS no. 1 shutdown parameter logic - Graphic panel binding with GUI. (author). 20 refs., 12 tabs., 15 figs

  5. The automatic programming for safety-critical software in nuclear power plants

    International Nuclear Information System (INIS)

    Kim, Jang Yeol; Eom, Heung Seop; Choi, You Rark

    1998-06-01

    We defined the Korean unique safety-critical software development methodology by modifying Dr. Harel's statechart-based on formal methods in order to digitalized the reactor protection system. It is suggested software requirement specification guideline to specify design specification which is basis for requirement specification and automatic programming by the caused by shutdown parameter logic of the steam generator water level for Wolsung 2/3/4 unit SDS no.1 and simulated it by binding the Graphic User Interface (GUI). We generated the K and R C code automatically by utilizing the Statemate MAGNUM Sharpshooter/C code generator. Auto-generated K and R C code is machine independent code and has high productivity, quality and provability. The following are the summaries of major research and development. - Set up the Korean unique safety-critical software development methodology - Developed software requirement specification guidelines - Developed software design specification guidelines - Reactor trip modeling for steam generator waster level Wolsung 2/3/4 SDS no. 1 shutdown parameter logic - Graphic panel binding with GUI. (author). 20 refs., 12 tabs., 15 figs

  6. Development of Safety-Critical Software for Nuclear Power Plant using a CASE Tool

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Chang Ho; Oh, Do Young; Kim, Koh Eun; Choi, Woong Seock; Sohn, Se Do; Kim, Jae Hack; Kim, Hang Bae [KEPCO E and C, Daejeon (Korea, Republic of)

    2011-08-15

    The Integrated SOftware Development Environment (ISODE) is developed to provide the major S/W life cycle processes that are composed of development process, V/V process, requirements traceability process, and automated document generation process and target importing process to Programmable Logic Controller (PLC) platform. This provides critical safety software developers with a certified, domain optimized, model-based development environment, and the associated services to reduce time and efforts to develop software such as debugging, simulation, code generation and document generation. This also provides critical safety software verifiers with integrated V/V features of each phase of the software life cycle using appropriate tools such as model test coverage, formal verification, and automated report generation. In addition to development and verification, the ISODE gives a complete traceability solution from the SW design phase to the testing phase. Using this information, the coverage and impact analysis can be done easily whenever software modification is necessary. The final source codes of ISODE are imported into the newly developed PLC environment, as a module based after automatically converted into the format required by PLC. Additional tests for module and unit level are performed on the target platform.

  7. Development of Safety-Critical Software for Nuclear Power Plant using a CASE Tool

    International Nuclear Information System (INIS)

    Kim, Chang Ho; Oh, Do Young; Kim, Koh Eun; Choi, Woong Seock; Sohn, Se Do; Kim, Jae Hack; Kim, Hang Bae

    2011-01-01

    The Integrated SOftware Development Environment (ISODE) is developed to provide the major S/W life cycle processes that are composed of development process, V/V process, requirements traceability process, and automated document generation process and target importing process to Programmable Logic Controller (PLC) platform. This provides critical safety software developers with a certified, domain optimized, model-based development environment, and the associated services to reduce time and efforts to develop software such as debugging, simulation, code generation and document generation. This also provides critical safety software verifiers with integrated V/V features of each phase of the software life cycle using appropriate tools such as model test coverage, formal verification, and automated report generation. In addition to development and verification, the ISODE gives a complete traceability solution from the SW design phase to the testing phase. Using this information, the coverage and impact analysis can be done easily whenever software modification is necessary. The final source codes of ISODE are imported into the newly developed PLC environment, as a module based after automatically converted into the format required by PLC. Additional tests for module and unit level are performed on the target platform

  8. An improved gate valve for critical applications in nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Kalsi, M.S.; Alvarez, P.D.; Wang, J.K.; Somagyi, D. [Kalsi Engineering, Inc., Sugar Land, TX (United States)] [and others

    1996-12-01

    U.S. Nuclear Regulatory Commission Generic Letters 89-10 for motor-operated valves (MOVs) and 95-07 for all power-operated valves document in detail the problems related to the performance of the safety-related valves in nuclear power plants. The problems relate to lack of reliable operation under design basis conditions including higher than anticipated stem thrust, unpredictable valve behavior, damage to the valve internals under blowdown/high flow conditions, significant degradation of performance when cycled under AP and flow, thermal binding, and pressure locking. This paper describes an improved motor-operated flexible wedge gate valve design, the GE Sentinel Valve, which is the outcome of a comprehensive and systematic development effort undertaken to resolve the issues identified in the NRC Generic Letters 89-10 and 95-07. The new design provides a reliable, long-term, low maintenance cost solution to the nuclear power industry. One of the key features incorporated in the disc permits the disc flexibility to be varied independently of the disc thickness (pressure boundary) dictated by the ASME Section III Pressure Vessel & Piping Code stress criteria. This feature allows the desired flexibility to be incorporated in the disc, thus eliminating thermal binding problems. A matrix of analyses was performed using finite element and computational fluid dynamics approaches to optimize design for stresses, flexibility, leak-tightness, fluid flow, and thermal effects. The design of the entire product line was based upon a consistent set of analyses and design rules which permit scaling to different valve sizes and pressure classes within the product line. The valve meets all of the ASME Section III Code design criteria and the N-Stamp requirements. The performance of the valve was validated by performing extensive separate effects and plant in-situ tests. This paper summarizes the key design features, analyses, and test results.

  9. An improved gate valve for critical applications in nuclear power plants

    International Nuclear Information System (INIS)

    Kalsi, M.S.; Alvarez, P.D.; Wang, J.K.; Somagyi, D.

    1996-01-01

    U.S. Nuclear Regulatory Commission Generic Letters 89-10 for motor-operated valves (MOVs) and 95-07 for all power-operated valves document in detail the problems related to the performance of the safety-related valves in nuclear power plants. The problems relate to lack of reliable operation under design basis conditions including higher than anticipated stem thrust, unpredictable valve behavior, damage to the valve internals under blowdown/high flow conditions, significant degradation of performance when cycled under AP and flow, thermal binding, and pressure locking. This paper describes an improved motor-operated flexible wedge gate valve design, the GE Sentinel Valve, which is the outcome of a comprehensive and systematic development effort undertaken to resolve the issues identified in the NRC Generic Letters 89-10 and 95-07. The new design provides a reliable, long-term, low maintenance cost solution to the nuclear power industry. One of the key features incorporated in the disc permits the disc flexibility to be varied independently of the disc thickness (pressure boundary) dictated by the ASME Section III Pressure Vessel ampersand Piping Code stress criteria. This feature allows the desired flexibility to be incorporated in the disc, thus eliminating thermal binding problems. A matrix of analyses was performed using finite element and computational fluid dynamics approaches to optimize design for stresses, flexibility, leak-tightness, fluid flow, and thermal effects. The design of the entire product line was based upon a consistent set of analyses and design rules which permit scaling to different valve sizes and pressure classes within the product line. The valve meets all of the ASME Section III Code design criteria and the N-Stamp requirements. The performance of the valve was validated by performing extensive separate effects and plant in-situ tests. This paper summarizes the key design features, analyses, and test results

  10. Meeting Ontario's electricity needs : a critical review of the Ontario Power Authority's supply mix advice report

    International Nuclear Information System (INIS)

    Gibbons, J.; Fracassi, J.

    2006-01-01

    In December, 2005 the Ontario Power Authority (OPA) outlined its proposed blueprint for meeting Ontario's electricity needs to 2025 in the document entitled Supply Mix Advice Report. As a result of the actions taken by the current government, the OPA believes that Ontario will have adequate electricity supplies to meet the province's needs until 2013. However, it stated that Ontario will require an additional 15,000 megawatts of new generation capacity between 2013 and 2025. The OPA also recommends that a significant proportion of this new generation capacity be nuclear. The Ontario Clean Air Alliance undertook a review of the OPA report and identified several discrepancies including an over-estimation of Ontario's rate of electricity load growth from 2005 to 2025; an under-estimation of the potential for electricity productivity improvements to reduce electricity demand and raise living standards; an under-estimation of renewable energy supply potential; an under-estimation of the potential for biomass and natural gas fired combined heat and power plants to meet electricity needs and increase the competitiveness of Ontario's industries; an under-estimation of the economic costs and risks of nuclear power; and a biased recommendation for a 70 million dollar resource acquisition budget against energy efficiency investments that would reduce demand and raise living standards. This report provides the Ontario Clean Air Alliances' analysis of the OPA report and presents it own recommendations for how Ontario can increase its electricity productivity and meet its electricity supply needs until 2025. The report concluded that the Government of Ontario should direct the OPA to develop a long-term strategy to raise the price of electricity up to its full cost without raising the electricity bills of low income consumers or impairing the competitiveness of Ontario's industries. It was suggested that Ontario's electricity productivity should be increased to the same level as

  11. Analysis of the emergency plan of Angra dos Reis Nuclear Power Plants: a critical view related to accessibility and mobility of people with special needs

    International Nuclear Information System (INIS)

    Correa, Luanda C.A.; Correa, Samanda C.A.; Santos, Geissa; Souza, Edmilson M.

    2014-01-01

    This work intends to make a critical analysis of the emergency plan of the Angra dos Reis Nuclear Power Plants related to appropriate transportation, accommodation and infrastructure for people with special needs

  12. Critical utopian action research and the power of future creating workshops

    DEFF Research Database (Denmark)

    Husted, Mia; Tofteng, Ditte Maria Børglum

    in a participatory process of democratic development of everyday life. Critical utopian action research is characterized by a methodological preference to the future creating workshop as a method that captures the scientific theoretical approach: The future creating workshop outline a specific method originally...... in upturned-participation. Within traditional participatory planning we talk about a participatory ladder. The steps on the ladder reflects how one can participate in different scales an ways, from being merely an informant to being self-determining and performing. The ladder tells us notion about who...... of exploring, developing and analyzing is a common project between the participant and the researchers. Conclusions: When stressing critique and utopian ideas within upturned participatory processes as the starting point, the CUAR tradition brings new input to the wider society of action research, insisting...

  13. A theoretical prediction of critical heat flux in saturated pool boiling during power transients

    International Nuclear Information System (INIS)

    Pasamehmetoglu, K.O.; Nelson, R.A.; Gunnerson, F.S.

    1987-01-01

    Understanding and predicting critical heat flux (CHF) behavior during steady-state and transient conditions is of fundamental interest in the design, operation, and safety of boiling and two-phase flow devices. Presented within this paper are the results of a comprehensive theoretical study specifically conducted to model transient CHF behavior in saturated pool boiling. Thermal energy conduction within a heating element and its influence on the CHF are also discussed. The resultant theory provides new insight into the basic physics of the CHF phenomenon and indicates favorable agreement with the experimental data from cylindrical heaters with small radii. However, the flat-ribbon heater data compared poorly with the present theory, although the general trend was predicted. Finally, various factors that affect the discrepency between the data and the theory are listed

  14. Power Generation by Zinc Antimonide Thin Film under Various Load Resistances at its Critical Operating Temperature

    DEFF Research Database (Denmark)

    Mir Hosseini, Seyed Mojtaba; Rezaniakolaei, Alireza; Rosendahl, Lasse Aistrup

    slightly reduces during unload conditions, although it is expected that by eliminating load in each step, the initial amount of voltage exactly repeats. Similar behavior is observed for Seebeck coefficient distribution versus time of working particularly in lower load resistances. Based on variation...... thin films operating under different load resistances at around its critical operating temperature, 400 ᵒC. The thermoelement is subjected to constant hot side temperature and to room temperature at the cold junction in order to measure the thin film TEG’s sample performance. The nominal loads equal...... to 10, 15, 20, 25, 30, 35, 40, 45… 175, and also 200 Ohms were applied. The results show that the value of the Seebeck coefficient is 0.0002 [V/K] for the specimen, which is in agreement with quantities of other zinc antimonide bulks materials in literature. The results also show that the voltage...

  15. A theoretical prediction of critical heat flux in subcooled pool boiling during power transients

    International Nuclear Information System (INIS)

    Pasamehmetoglu, K.O.; Nelson, R.A.; Gunnerson, F.S.

    1988-01-01

    Understanding and predicting critical heat flux (CHF) behavior during steady-state and transient conditions are of fundamenatal interest in the design, operation, safety of boiling and two-phase flow devices. This paper discusses the results of a comprehensive theoretical study made specifically to model transient CHF behavior in subcooled pool boiling. This study is based upon a simplified steady-state CHF model in terms of the vapor mass growth period. The results obtained from this theory indicate favorable agreement with the experimental data from cylindrical heaters with small radii. The statistical nature of the vapor mass behavior in transient boiling also is considered and upper and lower limits for the current theory are established. Various factors that affect the discrepancy between the data and the theory are discussed

  16. BioPower and economic theology. Critical review of the Giorgio Agamben’s proposals

    Directory of Open Access Journals (Sweden)

    Adán Salinas Araya

    2015-02-01

    Full Text Available The article make a critical review of the Giorgio Agamben’s proposals, showing the tensions between Homo sacer I and The Kingdom and the Glory. In this review is taken in particular consideration how a possible economic theology would constitute a projection of the Foucault’s biopolitical analysis; or rather, continuity of schmittians political theology. For this, the main arguments of the Agamben’s proposal and some of the Schmitt debates with Benjamin and Peterson are reconstructed. In the first case, regarding messianism, and the second, regarding the impossibility of political theology. The economic theology of Agamben and the political theology of Schmitt would share a same status, both necessarily express the conviction that theology is able to justify a speech and a political order.

  17. President Vladimir Putin’s Third Four-Year Term: Contradictory Outcomes – an Expec ted Result

    Directory of Open Access Journals (Sweden)

    Vladimir Aleksandrovich Ilyin

    2016-05-01

    Full Text Available In mid-March, Vladimir Putin’s third four-year presidency came to an end. If the term of office of the head of state were not prolonged in 2008, then the seventh presidential election would take place today, and therefore, a critical question arises: “What has been done and what needs to be done?... What does the President have in store for the people?”

  18. The critical issue of nuclear power plant safety in developing countries

    International Nuclear Information System (INIS)

    Rosen, M.

    1977-01-01

    A little more than a decade from now, large commercial nuclear power facilities will be in operation in almost 40 countries, of which approximately one-half are presently considered industrially less developed. Ambitious nuclear programmes coupled with minimal and frequently under-staffed regulatory and utility organizations are only one aspect of the difficulties related to the safety of nuclear plants that face these developing countries. Inherent problems of meeting current safety standards and requirements for the significantly non-standard nuclear power plant exports can be compounded by financial considerations that may lead to purchases of reactors of various types, from more than one supplier country and with different safety standards and requirements. An examination of these issues points to the necessity and opportunity for effective action which could include provision for adequate funding for safety considerations in the purchase contract, and for sufficient regulatory assistance and training from the developed countries. The article will introduce the topic, discuss specific examples, and offer some suggestions. (author)

  19. A basis for standardized seismic design (SSD) for nuclear power plants/critical facilities

    International Nuclear Information System (INIS)

    O'Hara, T.F.; Jacobson, J.P.; Bellini, F.X.

    1991-01-01

    US Nuclear Power Plants (NPP's) are designed, engineered and constructed to stringent standards. Their seismic adequacy is assured by compliance with regulatory standards and demonstrated by both probabilistic risk assessments (PRAs) and seismic margin studies. However, present seismic siting criteria requires improvement. Proposed changes to siting criteria discussed here will provide a predictable licensing process and a stable regulatory environment. Two recent state-of-the-art studies evaluate the seismic design for all eastern US (EUS) NPP'S: a Lawrence Livermore National Labs study (LLNL, 1989) funded by the NRC and similar research by the Electric Power Research Institute (EPRI, 1989) supported by the utilities. Both confirm that Appendix A 10CFR Part 100 has not provided consistent seismic design levels for all sites. Standardized Seismic Design (SSD) uses a probabilistic framework to accommodate alternative deterministic interpretations. It uses seismic hazard input from EPRI or LLNL to produce consistent bases for future seismic design. SSD combines deterministic and probabilistic insights to provide a comprehensive approach for determining a future site's acceptable seismic design basis

  20. Datafication and the Seductive Power of Uncertainty—A Critical Exploration of Big Data Enthusiasm

    Directory of Open Access Journals (Sweden)

    Stefan Strauß

    2015-12-01

    Full Text Available This contribution explores the fine line between overestimated expectations and underrepresented momentums of uncertainty that correlate with the prevalence of big data. Big data promises a multitude of innovative options to enhance decision-making by employing algorithmic power to gather worthy information out of large unstructured data sets. Datafication—the exploitation of raw data in many different contexts—can be seen as an attempt to tackle complexity and reduce uncertainty. Accordingly promising are the prospects for innovative applications to gain new insights and valuable knowledge in a variety of domains ranging from business strategy, security to health and medical research, etc. However, big data also entails an increase in complexity that, together with growing automation, may trigger not merely uncertain but also unintended societal events. As a new source of networking power, big data has inherent risks to create new asymmetries and transform possibilities to probabilities that can inter alia affect the autonomy of the individual. To reduce these risks, challenges ahead include improving data quality and interpretation supported by new modalities to allow for scrutiny and verifiability of big data analytics.

  1. Federal president Walter Scheel on nuclear energy

    International Nuclear Information System (INIS)

    Scheel, W.

    1977-01-01

    On the occasion of the award of the Theodor-Heuss-Prize in Munich on February 11th, 1977, the President of the Federal Republic Walter Scheel commented on the citizens' contribution to basic values. In doing this the President also spoke about the peaceful utilization of nuclear energy and stated finally: 'It is wrong to see only the risk of nuclear energy, to discuss only this. We must realize that in many parts of our society we have ushered in developments which involve similar, partly even bigger danger and risk than nuclear energy. And we must be prepared to face those risks everywhere.' (orig./HP) [de

  2. Prior exercise speeds pulmonary oxygen uptake kinetics and increases critical power during supine but not upright cycling.

    Science.gov (United States)

    Goulding, Richie P; Roche, Denise M; Marwood, Simon

    2017-09-01

    What is the central question of this study? Critical power (CP) represents the highest work rate for which a metabolic steady state is attainable. The physiological determinants of CP are unclear, but research suggests that CP might be related to the time constant of phase II oxygen uptake kinetics (τV̇O2). What is the main finding and its importance? We provide the first evidence that τV̇O2 is mechanistically related to CP. A reduction of τV̇O2 in the supine position was observed alongside a concomitant increase in CP. This effect may be contingent on measures of oxygen availability derived from near-infrared spectroscopy. Critical power (CP) is a fundamental parameter defining high-intensity exercise tolerance and is related to the time constant of phase II pulmonary oxygen uptake kinetics (τV̇O2). To test the hypothesis that this relationship is causal, we determined the impact of prior exercise ('priming') on CP and τV̇O2 in the upright and supine positions. Seventeen healthy men were assigned to either upright or supine exercise groups, whereby CP, τV̇O2 and muscle deoxyhaemoglobin kinetics (τ [HHb] ) were determined via constant-power tests to exhaustion at four work rates with (primed) and without (control) priming exercise at ∼31%Δ. During supine exercise, priming reduced τV̇O2 (control 54 ± 18 s versus primed 39 ± 11 s; P exercise had no effect on τV̇O2 (control 37 ± 12 s versus primed 35 ± 8 s; P = 0.82), τ [HHb] (control 10 ± 5 s versus primed 14 ± 10 s; P = 0.10) or CP (control 235 ± 42 W versus primed 232 ± 35 W; P = 0.57) during upright exercise. The concomitant reduction of τV̇O2 and increased CP following priming in the supine group, effects that were absent in the upright group, provide the first experimental evidence that τV̇O2 is mechanistically related to critical power. The increased τ [HHb+Mb] suggests that this effect was mediated, at least in part, by improved oxygen

  3. New research towards the full comprehension of the critical heat flux in nuclear power plants

    International Nuclear Information System (INIS)

    Garea, V.B.; Bonetto, F.J.; Clausse, A.; Converti, J.

    1990-01-01

    For the nuclear power plants' two-phase flow calculation, two fluid models are typically used. These models have the disadvantage that the number of equations is less than the number of unknown equations, thus the so-called 'closure laws' are required, that is, empirical relations among the variables of the model. In particular, one of the most important relations is the one that gives the specific interface area -the area between the phases by volume unit-. This work describes a method to calculate the boiling interface area from the measurement of the indicating function (that is 0 when fluid exists in the sensitive region of the detector and 1 when gas exists) in a point. (Author) [es

  4. Delay-Tolerant, Low-Power Protocols for Large Security-Critical Wireless Sensor Networks

    Directory of Open Access Journals (Sweden)

    Claudio S. Malavenda

    2012-01-01

    Full Text Available This paper reports the analysis, implementation, and experimental testing of a delay-tolerant and energy-aware protocol for a wireless sensor node, oriented to security applications. The solution proposed takes advantages from different domains considering as a guideline the low power consumption and facing the problems of seamless and lossy connectivity offered by the wireless medium along with very limited resources offered by a wireless network node. The paper is organized as follows: first we give an overview on delay-tolerant wireless sensor networking (DTN; then we perform a simulation-based comparative analysis of state-of-the-art DTN approaches and illustrate the improvement offered by the proposed protocol; finally we present experimental data gathered from the implementation of the proposed protocol on a proprietary hardware node.

  5. Quantitative safety goals for nuclear power plants: critical review and reformulation within a unified theory

    International Nuclear Information System (INIS)

    Munera, H.A.; Yadigaroglu, G.

    1988-01-01

    The first part of the paper critically reviews some of the adopted and/or proposed probabilistic safety goals and criteria in several countries. Some of the difficulties identified are:- Lack of an adequate delimitation of the scope of the non-deterministic choice problem. Consequently, the main components of the problem-probabilities and consequences-are not clearly defined. As a further consequence there is no unified treatment, including notation and terminology, for concepts like risk, probability, frequency, utility, risk-aversion, limit-line, etc. - The theoretical justifications and/or implications of limit-lines are not always fully understood. As a result three very different classes of limit-lines have emerged. The theoretical limitations of limit-lines are not always fully realized, leading to an over-emphasis in that approach and thus preventing the development of alternative methodologies. In the second part of the paper theoretical methods are indicated to compare probability distributions already existing in other disciplines, and a unified methodology to formulate probabilistic safety criteria is briefly described. The proposed theory gives due consideration to the whole probability distribution, and contains both limit-line concepts and global risk indices. The latter can easily incorporate regulatory and/or societal value-judgements, for instance risk-aversion. (author)

  6. 16 CFR 1502.18 - Presiding officer.

    Science.gov (United States)

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Presiding officer. 1502.18 Section 1502.18 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL HAZARDOUS SUBSTANCES ACT REGULATIONS... officer in a hearing will be an administrative law judge qualified under 5 U.S.C. 3105. ...

  7. President kritiseeris koolide kinnisvara arendamise kava

    Index Scriptorium Estoniae

    2004-01-01

    Ilmunud ka ajalehes Koit (2004/Sep/18) lk. 2. President Arnold Rüütli ja haridus- ja teadusminister Toivo Maimetsa ettekannetest üleriigilisel konverentsil "21. sajandi haridus". Üldhariduskoolide kinnisvara arendamise programmi tutvustas Riigi Kinnisvara ASi projektidirektor Tiit Kerem

  8. Are Community College Presidencies Wise Career Moves?

    Science.gov (United States)

    Jones, Stephanie J.; Johnson, Bradley

    2014-01-01

    This study surveyed executive administrators of community colleges that had experienced a presidential transition between 2006 and 2009. Its purpose was to determine their perceptions of career risk associated with the community college position of president. The study compared the perceptional changes to a prior study on the same subject by…

  9. EU Presidencies between Politics and Administration

    DEFF Research Database (Denmark)

    Nedergaard, Peter; Jensen, Mads Dagnis

    This book offers the first comprehensive analysis since the Lisbon Treaty came into force of the EU Presidency on national administrations in the member states of Poland, Denmark and Cyprus before, during and after the so- called ‘Trio Presidency’. Placing the practical issues facing officials...

  10. The President's Report, 1983-84.

    Science.gov (United States)

    Bok, Derek

    The 1983-84 annual report of the President of Harvard University to members of the Board of Overseers addresses the advantages and disadvantages of the utilization of new technologies by a university, comments on the instructional uses of computers (including computer assisted instruction (CAI)) and video technology, and cites specific examples in…

  11. President on teisest puust / Aarne Ruben

    Index Scriptorium Estoniae

    Ruben, Aarne, 1971-

    2007-01-01

    Praegune välisministeeriumi pressi- ja infoosakonna nõunik Jüri Trei ja president Arnold Rüütli protokolliülem Andrei Birov meenutavad iseseisvuspäeva vastuvõttude korraldamist presidentide Lennart Meri ja Arnold Rüütli ajal

  12. Branch President gives evidence at Scottish Parliament.

    Science.gov (United States)

    2017-07-01

    As the Scottish Government moves forward with its recently announced package of measures on animal health and welfare, Hayley Atkin, BVA Policy Officer, describes a busy month for the President of BVA Scottish Branch representing members in the Scottish Parliament. British Veterinary Association.

  13. Zatlers takes over presidency / Talis Saule Archdeacon

    Index Scriptorium Estoniae

    Archdeacon, Talis Saule

    2007-01-01

    Läti uus president Valdis Zatlers võttis ametist lahkunud riigipealt Vaira Vike-Freibergalt ametivolitused üle. Vaira Vike-Freiberga lahkumiskõnest. Korruptsioonisüüdistused seni kirurgina töötanud Valdis Zatlersi aadressil

  14. The College President's Role in Fund Raising.

    Science.gov (United States)

    Miller, Michael T.

    The role of the college president as one of the chief actors in academic fund raising is examined against the background of today's period of financial caution and increased competition for philanthropic support. The paper first provides an overview of the state of the art of fund raising and some ways in which college and universities have…

  15. Macroeconomic Issues Confronting the Next President.

    Science.gov (United States)

    Solow, Robert M.

    1988-01-01

    Identifies economic issues that confronted the United States in the late 1980's and discusses how the president might deal with them. Highlights the following issues: recession, rising price levels, the budget deficit, international trade imbalance, and revival of U.S. long-term growth. (GEA)

  16. College Presidents' Role Performance and Faculty Satisfaction

    Science.gov (United States)

    Paxton, Dan R.; Thomas, Darwin L.

    1977-01-01

    Data gathered from 896 faculty members from two technical colleges, three community colleges, two private universities, and three public universities revealed three dimensions of the presidential role: personal-public image, faculty and student interaction with presidents, and absence of autocratic leadership style. (Author/LBH)

  17. Mexico: new president pledges economic liberalisation

    International Nuclear Information System (INIS)

    Grayson, G.

    1994-01-01

    This article focuses on the commitment of the new Mexican president to economic reforms, and the state petroleum industry Fremex. The influence of the government and the North American Free Trade Agreement (Nafta) on the development of Fremex, the four subsidiary companies, options for the future, privatisation, the benefits of modernisation, and upstream opportunities for private companies are discussed. (UK)

  18. President of Lithuania Dalia Grybauskaitė

    CERN Multimedia

    Bennett, Sophia Elizabeth

    2016-01-01

    20 January 2016 - President of the Republic of Lithuania D. Grybauskaitė visiting CMS detector assembly hall with Director-General F. Gianotti and Collaboration Deputy Spokesperson K. Borras. Hands-on in CERN S'Cool LAB with S. Schmeling and J. Woithe; CERN Computer Centre with J. Shiers.

  19. President Ilves sõidab Bakuusse

    Index Scriptorium Estoniae

    2009-01-01

    President Toomas Hendrik Ilves ja proua Evelin Ilves sõidavad 12. jaanuaril 2009 Aserbaidžaani riigipea Ilham Alijevi kutsel ametlikule visiidile Bakuusse. Vt. ka lk. 10: Soonvald, Urmo. Aserbaidžaani mõju. Autor meenutab, et Aserbaidžaanis pole demokraatiat ega sõnavabadust, kuid riik on maailmale oluline oma maavarade tõttu

  20. Volume 1: president's address, CNA committee reports

    International Nuclear Information System (INIS)

    The president's address summarizes the 1974-75 activities of the CNA and reports are given by CNA subcommittees on codes, standards and practices, economic development, education and manpower, international affairs, nuclear insurance, nuclear safety and environment, public relations, and technology. (E.C.B.)

  1. President Signs STAR Act for Kids' Cancers.

    Science.gov (United States)

    2018-06-07

    On June 5, President Donald Trump signed the Childhood Cancer Survivorship, Treatment, Access and Research Act, which aims to support pediatric cancer research by expanding the collection of patient biospecimens and records, improving surveillance, and investigating pediatric survivorship. ©2018 American Association for Cancer Research.

  2. Leadership Development for Aspiring Community College Presidents

    Science.gov (United States)

    Bagadiong, Neil Soriano

    2013-01-01

    Several longitudinal reports predicted a potential crisis in the nation's community college system: a leadership gap due to a sizeable number of retirements of presidents and other high ranking college leaders. First reported at the beginning of 2000, the gap continues to grow, and recent research highlights the continuing trend. In the near…

  3. Eesti president ÜEKNi koosolekul

    Index Scriptorium Estoniae

    2010-01-01

    Ülemaailmse Eesti Kesknõukogu täiskogu koosolekul 2010. a. märtsis Washingtonis Eesti Vabariigi suursaatkonnas osales ka president Toomas Hendrik Ilves. Juuresoleval fotol riigipea koos Kristel ja Lea Sarrikuga. Töövisiit Ameerika Ühendriikidesse 17.-23.03.2010

  4. Personal Reflections of a First Lay President

    Science.gov (United States)

    Doud, Jacqueline Powers

    2014-01-01

    While this article is not about women's colleges or exclusively women presidents, the author notes, it is women's colleges that have experienced the greatest challenges, due primarily to financial constraints and competition. As operational costs escalated and choices for students increased, many small struggling colleges with little or no…

  5. On President Putin’s popularity: Evidence from survey experiment on the streets of Moscow

    NARCIS (Netherlands)

    M. Mecheva (Margarita)

    2016-01-01

    textabstractDuring his sixteen years in power Vladimir Putin has enjoyed high approval ratings. Despite a recent deterioration of Russia’s economy the President remains very popular. The research paper studies the possible effect of allegedly threatening media content on the support for Putin using

  6. Nigeria: the huge oil challenges for the new President Muhammadu Buhari

    International Nuclear Information System (INIS)

    Auge, Benjamin

    2015-09-01

    After having outlined that results of oil and gas production by Nigeria are rather low with respect to its reserve levels and when compared to the performance of other countries, this article first proposes a critical analysis of the mandate of the previous Nigerian President, Jonathan Goodluck, between 2010 and 2015. The author describes how Nigeria has progressively lost investor confidence, how major companies disengaged in favour of local companies with better relationships with the government. He outlines the total lack of transparency on oil revenue transfers and on license awarding procedures. In a second part, the author presents and comments the new perspectives and challenges for the new president, Muhammadu Buhari, for whom oil issues are said to be a priority. This means that cleaning up the oil sector and the American support requires legal affairs to be revived. The author also comments the cost of a peace with the oil producing region which voted for the former president

  7. Power load limits of the WENDELSTEIN 7-X target elements-comparison of experimental results and design values for power loads up to the critical heat flux

    International Nuclear Information System (INIS)

    Greuner, H; Boeswirth, B; Boscary, J; Leuprecht, A; Plankensteiner, A

    2007-01-01

    The power load limits of the WENDELSTEIN7-X divertor target elements were experimentally evaluated with heat loads considerably exceeding the expected operating conditions. The water-cooled elements are designed for steady-state heat flux of 10 MW m -2 and to remove a power load up to 100 kW. The elements must allow a limited operation time at 12 MW m -2 steady-state and should not fail for short pulses of up to 15 MW m -2 for cooling conditions in the subcooled nucleate boiling regime. In the framework of the qualification phase, pre-series target elements were loaded up to 24 MW m -2 without loss of CFC tiles. A critical heat flux at the target of 31 MW m -2 was achieved. The paper discusses the results of the tests performed at the high heat flux test facility GLADIS. The experimental results compared to transient nonlinear fine element method (FEM) calculations confirm a high thermal safety margin of the target design sufficient for plasma operation in W7-X

  8. The 'Critical Power' Concept: Applications to Sports Performance with a Focus on Intermittent High-Intensity Exercise.

    Science.gov (United States)

    Jones, Andrew M; Vanhatalo, Anni

    2017-03-01

    The curvilinear relationship between power output and the time for which it can be sustained is a fundamental and well-known feature of high-intensity exercise performance. This relationship 'levels off' at a 'critical power' (CP) that separates power outputs that can be sustained with stable values of, for example, muscle phosphocreatine, blood lactate, and pulmonary oxygen uptake ([Formula: see text]), from power outputs where these variables change continuously with time until their respective minimum and maximum values are reached and exercise intolerance occurs. The amount of work that can be done during exercise above CP (the so-called W') is constant but may be utilized at different rates depending on the proximity of the exercise power output to CP. Traditionally, this two-parameter CP model has been employed to provide insights into physiological responses, fatigue mechanisms, and performance capacity during continuous constant power output exercise in discrete exercise intensity domains. However, many team sports (e.g., basketball, football, hockey, rugby) involve frequent changes in exercise intensity and, even in endurance sports (e.g., cycling, running), intensity may vary considerably with environmental/course conditions and pacing strategy. In recent years, the appeal of the CP concept has been broadened through its application to intermittent high-intensity exercise. With the assumptions that W' is utilized during work intervals above CP and reconstituted during recovery intervals below CP, it can be shown that performance during intermittent exercise is related to four factors: the intensity and duration of the work intervals and the intensity and duration of the recovery intervals. However, while the utilization of W' may be assumed to be linear, studies indicate that the reconstitution of W' may be curvilinear with kinetics that are highly variable between individuals. This has led to the development of a new CP model for intermittent exercise in

  9. Geometrical thermodynamics and P-V criticality of the black holes with power-law Maxwell field

    Energy Technology Data Exchange (ETDEWEB)

    Hendi, S.H.; Panah, B.E. [Shiraz University, Physics Department and Biruni Observatory, College of Sciences, Shiraz (Iran, Islamic Republic of); Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), Maragha (Iran, Islamic Republic of); Panahiyan, S. [Shiraz University, Physics Department and Biruni Observatory, College of Sciences, Shiraz (Iran, Islamic Republic of); Shahid Beheshti University, Physics Department, Tehran (Iran, Islamic Republic of); Talezadeh, M.S. [Shiraz University, Physics Department and Biruni Observatory, College of Sciences, Shiraz (Iran, Islamic Republic of)

    2017-02-15

    We study the thermodynamical structure of Einstein black holes in the presence of power Maxwell invariant nonlinear electrodynamics for two different cases. The behavior of temperature and conditions regarding the stability of these black holes are investigated. Since the language of geometry is an effective method in general relativity, we concentrate on the geometrical thermodynamics to build a phase space for studying thermodynamical properties of these black holes. In addition, taking into account the denominator of the heat capacity, we use the proportionality between cosmological constant and thermodynamical pressure to extract the critical values for these black holes. Besides, the effects of the variation of different parameters on the thermodynamical structure of these black holes are investigated. Furthermore, some thermodynamical properties such as the volume expansion coefficient, speed of sound, and isothermal compressibility coefficient are calculated and some remarks regarding these quantities are given. (orig.)

  10. Use of zero power plutonium reactor measurements as a support of criticality prediction for the SNR-300

    International Nuclear Information System (INIS)

    Pilate, S.; de Wouters, R.; Wehmann, U.; Helm, F.; Scholtyssek, W.

    1978-01-01

    Evaluations of criticality measurements performed in various SNEAK and Zero Power Plutonium Reactor (ZPPR) cores are compared. The best available methods of calculations (including transport theory) are used. The ZPPR results support well the trend indicated by the SNEAK evaluations for clean cores and for cores with followers; for cores with absorbers partially inserted, the agreement is only rough. Evaluations of control rod worth measurements are therefore also compared, using the routine method of calculation for SNR-300 (diffusion theory). The control rod worths are largely underestimated in SNEAK (C/E = 0.89), but only slightly underestimated in the ZPPR (C/E = 0.97). The difference in the nature of core fuel (uranium in SNEAK, plutonium in the ZPPR) could be at the origin of this discrepancy

  11. Geometrical thermodynamics and P-V criticality of the black holes with power-law Maxwell field

    International Nuclear Information System (INIS)

    Hendi, S.H.; Panah, B.E.; Panahiyan, S.; Talezadeh, M.S.

    2017-01-01

    We study the thermodynamical structure of Einstein black holes in the presence of power Maxwell invariant nonlinear electrodynamics for two different cases. The behavior of temperature and conditions regarding the stability of these black holes are investigated. Since the language of geometry is an effective method in general relativity, we concentrate on the geometrical thermodynamics to build a phase space for studying thermodynamical properties of these black holes. In addition, taking into account the denominator of the heat capacity, we use the proportionality between cosmological constant and thermodynamical pressure to extract the critical values for these black holes. Besides, the effects of the variation of different parameters on the thermodynamical structure of these black holes are investigated. Furthermore, some thermodynamical properties such as the volume expansion coefficient, speed of sound, and isothermal compressibility coefficient are calculated and some remarks regarding these quantities are given. (orig.)

  12. President Ilves Held a Speech at Security Conference in Munich

    Index Scriptorium Estoniae

    2007-01-01

    Münchenis toimunud julgeolekukonverentsil Wehrkunde kõneles Eesti president Toomas Hendrik Ilves Euroopa Liidust kui regionaalsest mudelist rahu, julgeoleku ja heaolu tagamiseks. Vabariigi President töövisiidil Saksamaa Liitvabariiki 9.-12.02.2007

  13. President Ilves kohtus Ameerika Ühendriikide presidendi Barack Obamaga

    Index Scriptorium Estoniae

    2009-01-01

    President Toomas Hendrik Ilves kohtus 15. juunil 2009 Washingtonis USA presidendi Barack Obama ja tema julgeolekunõuniku James Jonesiga. Vabariigi President töövisiidil Ameerika Ühendriikides 9.-16.06.2009

  14. 78 FR 29145 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2013-05-17

    ... DEPARTMENT OF HOMELAND SECURITY [Docket No. DHS-2013-0022] President's National Security Telecommunications Advisory Committee AGENCY: National Protection and Programs Directorate, DHS. ACTION: Committee... notice of a May 22, 2013, meeting of the President's National Security Telecommunications Advisory...

  15. Kui vähe president meist teab! / Heimar Lenk

    Index Scriptorium Estoniae

    Lenk, Heimar, 1946-

    2011-01-01

    President Toomas Hendrik Ilves avaldas Briti ajalehes arvamust nõukogudeaegsete restoranide kohta: Kitman, Jamie. President Ilves: the man who made E-stonia. The Guardian, 3. nov. 2011. Riigikogu liikme vastukaja. Lisatud karikatuur

  16. 77 FR 26023 - President's National Security Telecommunications Advisory Committee; Correction

    Science.gov (United States)

    2012-05-02

    ... DEPARTMENT OF HOMELAND SECURITY [Docket No. DHS-2012-0016] President's National Security Telecommunications Advisory Committee; Correction AGENCY: National Protection and Programs Directorate, DHS. [[Page... April 25, 2012, concerning the President's National Security Telecommunications Advisory Committee...

  17. the state president's unit in its capacity asceremonial guard

    African Journals Online (AJOL)

    State President from various cities, especially those cities in .... SP Wag op parade tydens die opening van die Parlement, Januarle 1985. State President' ... Argus Printing and Publishing Co,Who's Who of Southern Africa. Johannesburg. 7.

  18. Studies of super-critical CO2 gas turbine power generation fast reactor (Contract research, translated document)

    International Nuclear Information System (INIS)

    Kisohara, Naoyuki; Kotake, Shoji; Sakamoto, Toshihiko

    2008-08-01

    The following studies have been executed for a super-critical CO 2 turbine system of an SFR. (1) Preliminary design of a SFR adopting a super-critical CO 2 cycle turbine. Preliminary system design of an SFR that adopts a super-critical CO 2 cycle turbine has been made. This SFR system eliminates secondary sodium circuits because of no sodium/water reaction. The power generation efficiency of the SFR has been estimated to be approximately 42%. Compared to a conventional SFR that adopts a steam Rankine cycle with secondary sodium circuits, the volume of the reactor building of the SC-CO 2 SFR has been reduced by 20%. (2) Thermal-hydraulic experiment of a super-critical CO 2 cycle loop. A test loop that simulates a super-critical CO 2 whole cycle was fabricated. An electrical heater was used for a heat source of the test loop. The high efficiency of the compressor has been experimentally confirmed near the super-critical region. The temperature efficiencies of PCHE recuperators have been approximately 98-99% (hot leg), and the recuperators have exhibited high heat transfer performance. No significant flow instability has been observed in the test loop operation. (3) Liquid sodium/CO 2 reaction test. Reaction tests have been executed by contacting a small amount of liquid sodium and CO 2 gas. Continuous sodium/CO 2 reactions with flame have occurred at the temperature higher than 570-580degC. Main reaction products have been Na 2 CO 3 and CO gas. The reaction heat has been also measured to be 50-75kJ/Na-mol. (4) Computer code safety analysis for tube failure of sodium/CO 2 heat exchanger. Safety calculation has been done for one double ended guillotine tube failure (1 DEG) of a helical coil type sodium/CO 2 heat exchanger. The analysis has showed that the maximum pressure in the primary sodium circuit is 0.28MPa due to a gas leak. It has been, however, below the allowed level of the primary circuit structural integrity. The void reactivity of the reactor core has

  19. Numerical analysis of temperature field improvement with nanoparticles designed to achieve critical power dissipation in magnetic hyperthermia

    Science.gov (United States)

    Tang, Yundong; Flesch, Rodolfo C. C.; Jin, Tao

    2017-07-01

    Magnetic nanoparticle (MNP) hyperthermia is a promising emerging therapy for cancer treatment that is minimally invasive and has been successfully used to treat different types of tumors. The power dissipation of MNPs, which is one of the most important factors during a hyperthermia treatment, is determined by the properties of MNPs and characteristics of the magnetic field. This paper proposes a method based on the finite element analysis for determining the value of the power dissipation of particles (PDP) that can maximize the average temperature of the tumor during treatment and at the same time guarantee that the maximum temperature is within the therapeutic range. The application of the critical PDP value can improve the effectiveness of the treatment since it increases the average temperature in the tumor region while limiting the damage to the healthy tissue that surrounds it. After the critical PDP is determined for a specific model, it is shown how the properties of the MNPs can be chosen to achieve the desired PDP value. The transient behavior of the temperature distribution for two different models considering blood vessels is analyzed as a case study, showing that the presence of a blood vessel inside the tumor region can significantly decrease the uniformity of the temperature field and also increase the treatment duration given its cooling effects. To present a solution that does not depend upon a good model of the tumor region, an alternative method that uses MNPs with low Curie temperature is proposed, given the temperature self-regulating properties of such MNPs. The results demonstrate that the uniformity of the temperature field can be significantly increased by combining the optimization procedure proposed in this paper with the use of low-Curie-temperature MNPs.

  20. The evil that men do-an open letter to President Obama

    Directory of Open Access Journals (Sweden)

    Robbins RA

    2016-05-01

    Full Text Available No abstract available. Article truncated after 150 words. "The evil that men do lives after them; the good is oft interred with their bones". William Shakespeare. Julius Caesar, Act 3, Scene 2. Dear President Obama: Late in a second term, a President's attention often turns to framing their legacy. I suspect you are no exception and have given this considerable thought. You might wish to be remembered for the Affordable Care Act, even called Obamacare, which brought the US closer to universal healthcare coverage. However, I recall the end of President Clinton's second term a short 16 years ago. During that administration the Federal coffers were full; an unprecedented business boom occurred; and foreign entanglements that might have led to war were avoided. However, most of us do not remember those positives, but recall a White House intern and a certain blue dress. As pointed out by Shakespeare over 400 years ago powerful men are remembered not so ...

  1. 75 FR 37281 - President's Council on Fitness, Sports, and Nutrition

    Science.gov (United States)

    2010-06-28

    ... Part VI The President Executive Order 13545--President's Council on Fitness, Sports, and Nutrition... Order 13545 of June 22, 2010 President's Council on Fitness, Sports, and Nutrition By the authority... recognize that good nutrition goes hand in hand with fitness and sports participation, Executive Order 13265...

  2. Electing the President: The Electoral Process in Action.

    Science.gov (United States)

    See, Betty M.

    Electing the U.S. President and Vice President is a basic right and responsibility of every citizen of voting age. Even though it occurs every 4 years, the complexities of electing the president is not a concept that every person understands. This resource book aims to fill the gap in understanding by providing students with a learning-by-doing…

  3. Visit to the Library by President of Estonia

    Index Scriptorium Estoniae

    2008-01-01

    15. aprillil 2008 külastasid president Toomas Hendrik Ilves ja proua Evelin Ilves Iirimaa Rahvusraamatukogu, kus nad vaatasid näitust: Yeats : the life and works of William Butler Yeats. Juuresoleval fotol president T. H. Ilves, proua Evelin Ilves ja raamatukogutöötaja Catherine Fahy. Vabariigi President riigivisiidil Iirimaal 13.-16.04.2008

  4. Concientization among People in Support and Opposition of President Trump

    Science.gov (United States)

    Sánchez, Damien M.

    2018-01-01

    Civic engagement in the United States has increased since the election of President Trump. This increase is evident online as people are using Twitter to assert their digital citizenship by voicing their opinions regarding President Donald J. Trump and demonstrating solidarity with various civic movements. President Trump's election has caused…

  5. Modeling and validation of a mechanistic tool (MEFISTO) for the prediction of critical power in BWR fuel assemblies

    International Nuclear Information System (INIS)

    Adamsson, Carl; Le Corre, Jean-Marie

    2011-01-01

    Highlights: → The MEFISTO code efficiently and accurately predicts the dryout event in a BWR fuel bundle, using a mechanistic model. → A hybrid approach between a fast and robust sub-channel analysis and a three-field two-phase analysis is adopted. → MEFISTO modeling approach, calibration, CPU usage, sensitivity, trend analysis and performance evaluation are presented. → The calibration parameters and process were carefully selected to preserve the mechanistic nature of the code. → The code dryout prediction performance is near the level of fuel-specific empirical dryout correlations. - Abstract: Westinghouse is currently developing the MEFISTO code with the main goal to achieve fast, robust, practical and reliable prediction of steady-state dryout Critical Power in Boiling Water Reactor (BWR) fuel bundle based on a mechanistic approach. A computationally efficient simulation scheme was used to achieve this goal, where the code resolves all relevant field (drop, steam and multi-film) mass balance equations, within the annular flow region, at the sub-channel level while relying on a fast and robust two-phase (liquid/steam) sub-channel solution to provide the cross-flow information. The MEFISTO code can hence provide highly detailed solution of the multi-film flow in BWR fuel bundle while enhancing flexibility and reducing the computer time by an order of magnitude as compared to a standard three-field sub-channel analysis approach. Models for the numerical computation of the one-dimensional field flowrate distributions in an open channel (e.g. a sub-channel), including the numerical treatment of field cross-flows, part-length rods, spacers grids and post-dryout conditions are presented in this paper. The MEFISTO code is then applied to dryout prediction in BWR fuel bundle using VIPRE-W as a fast and robust two-phase sub-channel driver code. The dryout power is numerically predicted by iterating on the bundle power so that the minimum film flowrate in the

  6. Comparison of inter-trial recovery times for the determination of critical power and W' in cycling.

    Science.gov (United States)

    Karsten, Bettina; Hopker, James; Jobson, Simon A; Baker, Jonathan; Petrigna, Luca; Klose, Andreas; Beedie, Christopher

    2017-07-01

    Critical Power (CP) and W' are often determined using multi-day testing protocols. To investigate this cumbersome testing method, the purpose of this study was to compare the differences between the conventional use of a 24-h inter-trial recovery time with those of 3 h and 30 min for the determination of CP and W'. 9 moderately trained cyclists performed an incremental test to exhaustion to establish the power output associated with the maximum oxygen uptake (p[Formula: see text] max ), and 3 protocols requiring time-to-exhaustion trials at a constant work-rate performed at 80%, 100% and 105% of p[Formula: see text] max. Design: Protocol A utilised 24-h inter-trial recovery (CP 24 /W' 24 ), protocol B utilised 3-h inter-trial recovery (CP 3 /W' 3 ), and protocol C used 30-min inter-trial recovery period (CP 0.5 /W' 0.5 ). CP and W' were calculated using the inverse time (1/t) versus power (P) relation (P = W'(1/t) + CP). 95% Limits of Agreement between protocol A and B were -9 to 15 W; -7.4 to 7.8 kJ (CP/W') and between protocol A and protocol C they were -27 to 22 W; -7.2 to 15.1 kJ (CP/W'). Compared to criterion protocol A, the average prediction error of protocol B was 2.5% (CP) and 25.6% (W'), whilst for protocol C it was 3.7% (CP) and 32.9% (W'). 3-h and 30-min inter-trial recovery time protocols provide valid methods of determining CP but not W' in cycling.

  7. EU Presidencies between Politics and Administration

    DEFF Research Database (Denmark)

    Jensen, Mads Dagnis; Nedergaard, Peter

    and policy- makers into a ‘governmentality’ framework, it analyses the impact on the daily activities of bureaucrats and ministers. The book utilises comprehensive and novel empirical materials, including around 100 interviews with key officials, documentary sources and academic literature. It uncovers...... the kind of negotiations, management and coordination triggered by the immense challenge of presiding over the EU – including being a part of a Trio....

  8. Vabariigi President kohtus Euroopa Komisjoni presidendiga

    Index Scriptorium Estoniae

    2008-01-01

    President Toomas Hendrik Ilvese ja Euroopa Komisjoni presidendi Jose Manuel Durao Barroso kohtumisel 11. märtsil 2008 olid kõne all Euroopa Liidu energiajulgeolek ja energiasõltumatus ning mitme Euroopa Liidu liikmesmaa, sealhulgas Eesti, kahepoolsed läbirääkimised Ameerika Ühendriikidega, et saavutada USAga viisavabadus. Ingl. k. ilmunud ka: Vaba Eesti Sõna 20. märts 2008, lk. 12, pealk.: All EU Citizens should have Visa-free Access to USA

  9. Mali president kaotaks surmanuhtluse / Allan Espenberg

    Index Scriptorium Estoniae

    Espenberg, Allan

    2007-01-01

    Mali president Amadou Tourmani Toure pöördus riigi iseseisvuse väljakuulutamise 47. aastapäeva puhul rahva poole läkitusega, kus teatas surmanuhtluse likvideerimise seaduseelnõu parlamenti saatmisest. Presidendi säärane initsiatiiv pole aga meeltmööda Mali moslemivaimulikele. Praeguseks on Amnesty Internationali andmetel umbes pooled maailma riikidest surmanuhtluse tühistanud

  10. Novel power flow problem solutions method’s based on genetic algorithm optimization for banks capacitor compensation using an fuzzy logic rule bases for critical nodal detections

    OpenAIRE

    Abdelfatah, Nasri; Brahim, Gasbaoui

    2011-01-01

    The Reactive power flow’s is one of the most electrical distribution systems problem wich have great of interset of the electrical network researchers, it’s  cause’s active power transmission reduction, power losses decreasing, and  the drop voltage’s increase. In this research we described the efficiency of the FLC-GAO approach to solve the optimal power flow (OPF) combinatorial problem. The proposed approach employ tow algorithms, Fuzzy logic controller (FLC) algorithm for critical nodal de...

  11. President of the Slovak Republic visits CERN

    CERN Multimedia

    Caroline Duc

    2012-01-01

    On 11 September 2012, the President of the Slovak Republic, Ivan Gašparovič, visited CERN accompanied by the First Lady and a delegation of 67, including the Deputy Prime Minister, the Minister of Foreign Affairs, the Minister of Economy and the Ambassadors of the Slovak Republic to Switzerland, France and the Office of the United Nations. The visit by representatives of the Slovak Republic follows the Slovak Republic’s hosting of the CERN Accelerator School in the region of Bratislava. After being welcomed to CERN in the morning by CERN Director-General Rolf Heuer, the members of the Slovak government were given the opportunity to get a glimpse of the LHC and to visit the ALICE experiment at Point 2. The President and other members of the Slovak delegation then met representatives of Slovak universities and industries at an exhibition of their work in the hall of Building 500. The President then briefly spoke to Slovak journalists and signed the VIP visitors book. The visit last...

  12. CERN welcomes the Spanish Vice-President

    CERN Multimedia

    Anaïs Schaeffer

    2015-01-01

    On 29 September, CERN had the pleasure of welcoming the Vice-President of the Government of Spain, Soraya Sáenz de Santamaría, for a visit of the Laboratory.   From left to right: Lluis Miralles (Head of the General Infrastructure Services department), Soraya Sáenz de Santamaría (Vice-President of the Government of Spain) and José Miguel Jiménez (Head of the Technology department).   The Vice-President was accompanied by Carmen Vela, Spanish Secretary of State for Research, Development and Innovation, Bernardo de Sicart Escoda, Ambassador of Spain to Switzerland, and Ana Menéndez Pérez, Permanent Representative of Spain to the United Nations and International Organizations in Geneva. Their tour started at LHC Point 1, where CERN Director-General Rolf Heuer welcomed them and gave them an introduction to CERN's activities. Jos&ea...

  13. Criticality and shielding calculations of an interim dry storage system for the spent fuel from Atucha I Nuclear Power Plant

    International Nuclear Information System (INIS)

    Silva, M

    2006-01-01

    The Atucha I Nuclear Power Plant (CNA-I) has enough room to store its spent fuel (SF) in damp in its two pool houses until the middle of 2015.Before that date there is the need to have an interim dry storage system for spent fuel that would make possible to empty at least one of the pools, whether to keep the plant operating if its useful life is extended, or to be able to empty the reactor core in case of decommissioning.Nucleolectrica Argentina S.A. (NA-SA) and the Comision Nacional de Energia Atomica (CNEA), due to their joint responsibility in the management of the SF, have proposed interim dry storage systems.These systems have to be evaluated in order to choose one of them by the end of 2006.In this work the Monte Carlo code MCNP was used to make the criticality and shielding calculations corresponding to the model proposed by CNEA.This model suggests the store of sealed containers with 36 or 37 SF in concrete modules.Each one of the containers is filled in the pool houses and transported to the module in a transference cask with lead walls.The results of the criticality calculations indicates that the solutions of SF proposed have widely fulfilled the requirements of subcriticality, even in supposed extreme accidental situations.Regarding the transference cask, the SF dose rate estimations allow us to make a feedback for the design aiming to the geometry and shielding improvements.Regarding the store modules, thicknesses ranges of concrete walls are suggested in order to fulfill the dose requirements stated by the Autoridad Regulatoria Nuclear Argentina [es

  14. Cable addressed to the Director General by Mr. R. Amrollahi, Deputy Prime Minister of the Islamic Republic of Iran and President of the Atomic Energy Organization of Iran

    International Nuclear Information System (INIS)

    1987-02-01

    The full text of the cable of 9 February 1987 addressed by the President of the Atomic Energy Organization of Iran to the Director General of the IAEA and referring to military attacks on Bushehr Nuclear Power Plant is reproduced

  15. Effect of caffeine intake on critical power model parameters determined on a cycle ergometer DOI:10.5007/1980-0037.2010v12n1p49

    Directory of Open Access Journals (Sweden)

    Marcus Vinicius Machado

    2010-12-01

    Full Text Available The aim of this study was to evaluate the effect of caffeine intake on critical power model parameters determined on a cycle ergometer. Eight male subjects participated in this study. A double-blind protocol consisting of the intake of pure caffeine (6 mg/kg or placebo (maltodextrin 60 min before testing was used. Subjects were submitted to four constant-load tests on a cycle ergometer. These tests were conducted randomly in the caffeine and placebo groups [checar] at intensities of 80, 90, 100 and 110% maximum power at a rate of 70 rpm until exhaustion to determine the critical power. As a criterion for stopping the test was adopted any rate fall without recovery by more than five seconds. The critical power and anaerobic work capacity were obtained by nonlinear regression and fitting of the curve to a hyperbolic power-time model. The Shapiro-Wilk test and paired Student t-test were used for statistical analysis. No significant differences in critical power were observed between the caffeine and placebo groups (192.9 ± 31.3 vs 197.7 ± 29.4 W, respectively. The anaerobic work capacity was significantly higher in the caffeine group (20.1 ± 5.2 vs 16.3 ± 4.2 W, p< 0.01. A high association (r2 was observed between the caffeine and placebo conditions (0.98 ± 0.02 and 0.99 ± 0.0, respectively. We conclude that caffeine intake did not improve critical power performance but increased anaerobic work capacity by influencing performance at loads of higher intensity and shorter duration.

  16. Hearing of Mr. Francois Roussely, President of EdF

    International Nuclear Information System (INIS)

    Roussely, F.

    2005-01-01

    This document is the proceedings of the hearing of F. Roussely, President of Electricite de France (EdF), at the commission of economic affairs of the French house of commons, about the advisability of the construction of the EPR (European pressurized reactor) demonstration plant and about its possible financing by EdF. In a first part, F. Roussely recalls the European context of deregulation of energy markets and its impact of the French electric power industry (opening of the French market, industrial and social actions of EdF, need of a new generation of nuclear reactor, preservation of EdF's energy mix, warranty of public utility, un-bundling between energy trade and distribution, EdF's turnover and profitability, EdF's foreign daughter companies). In a second part, F. Roussely answers a series of questions asked by the different members of the commission concerning the different points presented in the first part. (J.S.)

  17. Design and development of self-powered sensors on wireless sensor network for standalone plant critical data management during SBO and beyond design basis events

    International Nuclear Information System (INIS)

    Aparna, J.; Dulera, I.V.; Rama Rao, A.; Vijayan, P.K.

    2015-01-01

    Advanced reactors are designed with an aim of maximum safety, optimized fuel utilization and effective system design. Safety aspects in reactor designs are being viewed for all possible vulnerabilities, and as a result, robust self-regulating passive safety features have been favored in Gen IV and advanced reactor designs. In addition to passive systems, the accidents scenarios at Fukushima indicate the dire need of reliable and stand-alone self-powered sensors, for monitoring plant critical parameters for effective damage control actions. There is a strong need for plant critical data management and situation awareness during the unavailability of all conventional power sources in a nuclear power plant, during extended station blackout (SBO) conditions. These self-powered sensors would assist the operators in managing events like SBO and help in containing any Beyond Design Basis Events (BDBE) conditions, well away from the public domain

  18. Dynamic Simulation of the Water-steam System in Once-through Boilers - Sub-critical Power Boiler Case -

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Seongil; Choi, Sangmin [Korea Advanced Institute of Science and Technology, Daejeon (Korea, Republic of)

    2017-05-15

    The dynamics of a water-steam system in a once-through boiler was simulated based on the physics-based modeling approach, representing the system in response to large load change or scale disturbance simulations. The modeling considered the mass, energy conservation, and momentum equation in the water pipe and the focus was limited to the sub-critical pressure region. An evaporator tube modeling was validated against the reference data. A simplified boiler system consisting of economizer, evaporator, and superheater was constructed to match a 500 MW power boiler. The dynamic response of the system following a disturbance was discussed along with the quantitative response characteristics. The dynamic response of the boiler system was further evaluated by checking the case of an off-design point operation of the feedwater-to-fuel supply ratio. The results re-emphasized the significance of controlling the feedwater-to-fuel supply ratio and additional design requirements of the water-steam separator and spray attemperator.

  19. Dynamic Simulation of the Water-steam System in Once-through Boilers - Sub-critical Power Boiler Case -

    International Nuclear Information System (INIS)

    Kim, Seongil; Choi, Sangmin

    2017-01-01

    The dynamics of a water-steam system in a once-through boiler was simulated based on the physics-based modeling approach, representing the system in response to large load change or scale disturbance simulations. The modeling considered the mass, energy conservation, and momentum equation in the water pipe and the focus was limited to the sub-critical pressure region. An evaporator tube modeling was validated against the reference data. A simplified boiler system consisting of economizer, evaporator, and superheater was constructed to match a 500 MW power boiler. The dynamic response of the system following a disturbance was discussed along with the quantitative response characteristics. The dynamic response of the boiler system was further evaluated by checking the case of an off-design point operation of the feedwater-to-fuel supply ratio. The results re-emphasized the significance of controlling the feedwater-to-fuel supply ratio and additional design requirements of the water-steam separator and spray attemperator.

  20. Experimentation of RT-LOTOS for a critical function of a power plant instrumentation and control system

    International Nuclear Information System (INIS)

    Andriantsiiferana, L.; Courtiat, J.P.; De Oliveira, R.C.

    1996-01-01

    This document is the final report of the contract between LAAS-CNRS and the EdF Direction of Researches and Studies about the experimentation of RT-LOTOS formal description technique on a critical function of a nuclear power plant instrumentation and control system. This report comprises 4 parts: part 1 describes the RT-LOTOS (Real Time-Language of Temporal Ordering Specifications) tutorial and its RTL tool environment, the different RT-LOTOS operators and semantics, and the RTL tool main functionalities; part 2 deals with the methodology and the global architecture for the specification and validation of the CCT (Central Calculator for Treatment); part 3 gives more details about the different processes identified in the specification architecture and presents the main results obtained for the validation of the nominal functioning; part 4 describes some exceptional situations and shows how some failures and their associated recovery mechanisms can be modelled. (J.S.). 6 refs., 53 figs., 5 tabs., 2 appends

  1. Chaos, self-organized criticality, and SETAR nonlinearity: An analysis of purchasing power parity between Canada and the United States

    Energy Technology Data Exchange (ETDEWEB)

    Serletis, Apostolos [Department of Economics, University of Calgary, Calgary, Alta., T2N 1N4 (Canada)]. E-mail: Serletis@ucalgary.ca; Shahmoradi, Asghar [Faculty of Economics, University of Tehran, Tehran (Iran, Islamic Republic of)

    2007-08-15

    This paper uses monthly observations for the real exchange rate between Canada and the United States over the recent flexible exchange rate period (from January 1, 1973 to August 1, 2004) to test purchasing power parity between Canada and the United States using unit root and stationarity tests. Moreover, given the apparent random walk behavior in the real exchange rate, various tests from dynamical systems theory, such as for example, the Nychka et al. [Nychka DW, Ellner S, Ronald GA, McCaffrey D. Finding chaos in noisy systems. J Roy Stat Soc B 1992;54:399-426] chaos test, the Li [Li W. Absence of 1/f spectra in Dow Jones average. Int J Bifurcat Chaos 1991;1:583-97] self-organized criticality test, and the Hansen [Hansen, B.E. Inference when a nuisance parameter is not identified under the null hypothesis. Econometrica 1996;64:413-30] threshold effects test are used to distinguish between stochastic and deterministic origin for the real exchange rate.

  2. Global Health Governance and Global Power: A Critical Commentary on the Lancet-University of Oslo Commission Report.

    Science.gov (United States)

    Gill, Stephen; Benatar, Solomon

    2016-01-01

    The Lancet-University of Oslo Commission Report on Global Governance for Health provides an insightful analysis of the global health inequalities that result from transnational activities consequent on what the authors call contemporary "global social norms." Our critique is that the analysis and suggested reforms to prevailing institutions and practices are confined within the perspective of the dominant-although unsustainable and inequitable-market-oriented, neoliberal development model of global capitalism. Consequently, the report both elides critical discussion of many key forms of material and political power under conditions of neoliberal development and governance that shape the nature and priorities of the global governance for health, and fails to point to the extent of changes required to sustainably improve global health. We propose that an alternative concept of progress-one grounded in history, political economy, and ecologically responsible health ethics-is sorely needed to better address challenges of global health governance in the new millennium. This might be premised on global solidarity and the "development of sustainability." We argue that the prevailing market civilization model that lies at the heart of global capitalism is being, and will further need to be, contested to avoid contradictions and dislocations associated with the commodification and privatization of health. © The Author(s) 2016.

  3. Chaos, self-organized criticality, and SETAR nonlinearity: An analysis of purchasing power parity between Canada and the United States

    International Nuclear Information System (INIS)

    Serletis, Apostolos; Shahmoradi, Asghar

    2007-01-01

    This paper uses monthly observations for the real exchange rate between Canada and the United States over the recent flexible exchange rate period (from January 1, 1973 to August 1, 2004) to test purchasing power parity between Canada and the United States using unit root and stationarity tests. Moreover, given the apparent random walk behavior in the real exchange rate, various tests from dynamical systems theory, such as for example, the Nychka et al. [Nychka DW, Ellner S, Ronald GA, McCaffrey D. Finding chaos in noisy systems. J Roy Stat Soc B 1992;54:399-426] chaos test, the Li [Li W. Absence of 1/f spectra in Dow Jones average. Int J Bifurcat Chaos 1991;1:583-97] self-organized criticality test, and the Hansen [Hansen, B.E. Inference when a nuisance parameter is not identified under the null hypothesis. Econometrica 1996;64:413-30] threshold effects test are used to distinguish between stochastic and deterministic origin for the real exchange rate

  4. Catherine Cesarsky - President Elect of the International Astronomical Union (IAU)

    Science.gov (United States)

    2003-07-01

    The General Assembly of the International Astronomical Union (IAU), meeting in Sydney (Australia), has appointed the ESO Director General, Dr. Catherine Cesarsky, as President Elect for a three-year period (2003-2006). The IAU is the world's foremost organisation for astronomy, uniting almost 9000 professional scientists on all continents. The IAU General Assembly also elected Prof. Ron Ekers (Australia) as President (2003 - 2006). Dr. Cesarsky will then become President of the IAU in 2006, when the General Assembly next meets in Prague (The Czech Republic). Dr. Cesarsky is the first woman scientist to receive this high distinction. "The election of Catherine Cesarsky as President-Elect of the IAU is an important recognition for a scientist who has made impressive contributions to various areas of modern astrophysics, from cosmic rays to the interstellar medium and cosmology" , commented the outgoing IAU President, Prof. Franco Pacini. "It is also an honour and an important accolade for the European astronomical community in general and ESO in particular." Dr. Cesarsky, who assumed the function as ESO Director General in 1999, was born in France. She received a degree in Physical Sciences at the University of Buenos Aires and graduated with a PhD in Astronomy in 1971 from Harvard University (Cambridge, Mass., USA). Afterwards she worked at the California Institute of Technology (CALTECH). In 1974, she became a staff member of the Service d'Astrophysique (SAp), Direction des Sciences de la Matière (DSM), Commissariat à l'Energie Atomique (CEA) (France). As Director of DSM (1994 - 1999), she was leading about 3000 scientists, engineers and technicians active within a broad spectrum of basic research programmes in physics, chemistry, astrophysics and earth sciences. Dr. Cesarsky is known for her successful research activities in several central areas of modern astrophysics. She first worked on the theory of cosmic ray propagation and acceleration, and galactic gamma

  5. Academy President Sadykov on environment, water

    Energy Technology Data Exchange (ETDEWEB)

    1984-06-01

    Soviet scholars, supported by doctrines of Marxism-Leninism, propose to use natural resources without harming the environment. Institutes work on the use of nontraditional but productive ways to protect plants, filter industrial wastes and convert them to other uses, protect soil resources, set up plant and animal preserves, and protect geological conditions in steppe and semi-steppe areas. Scientific research on equipment to clean up wastes is not well established in the Soviet Union. When asked about the ecological harm of land reclamation, the president noted that newly reclaimed lands increase the demand for and increase the salt content of fresh water.

  6. Education of a college president: a memoir

    International Nuclear Information System (INIS)

    Killian, J.R. Jr.

    1985-01-01

    The reviewer finds Killian's book, The Education of a College President: A Memoir, to be an interesting counterpoint to Kamen's memoir of the political side of the nuclear age. Killian describes his World War II experiences at the Massachusetts Institute of Technology, where a concentration of research scientists worked in harmony in contrast to the situation in California. Killian focuses on the institutional side of cooperation between the university, industry, and the military. The reviewer, who faults Kamen for his claustrophobic approach, expresses disappointment with Killian's impersonal approach

  7. 29 CFR 1911.16 - Powers of presiding officer.

    Science.gov (United States)

    2010-07-01

    ... Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR (CONTINUED) RULES OF PROCEDURE FOR PROMULGATING, MODIFYING, OR REVOKING OCCUPATIONAL SAFETY OR HEALTH... matters; (c) To confine the presentations to the issues specified in the notice of hearing, or, where no...

  8. The intermediates take it all: asymptotics of higher criticism statistics and a powerful alternative based on equal local levels.

    Science.gov (United States)

    Gontscharuk, Veronika; Landwehr, Sandra; Finner, Helmut

    2015-01-01

    The higher criticism (HC) statistic, which can be seen as a normalized version of the famous Kolmogorov-Smirnov statistic, has a long history, dating back to the mid seventies. Originally, HC statistics were used in connection with goodness of fit (GOF) tests but they recently gained some attention in the context of testing the global null hypothesis in high dimensional data. The continuing interest for HC seems to be inspired by a series of nice asymptotic properties related to this statistic. For example, unlike Kolmogorov-Smirnov tests, GOF tests based on the HC statistic are known to be asymptotically sensitive in the moderate tails, hence it is favorably applied for detecting the presence of signals in sparse mixture models. However, some questions around the asymptotic behavior of the HC statistic are still open. We focus on two of them, namely, why a specific intermediate range is crucial for GOF tests based on the HC statistic and why the convergence of the HC distribution to the limiting one is extremely slow. Moreover, the inconsistency in the asymptotic and finite behavior of the HC statistic prompts us to provide a new HC test that has better finite properties than the original HC test while showing the same asymptotics. This test is motivated by the asymptotic behavior of the so-called local levels related to the original HC test. By means of numerical calculations and simulations we show that the new HC test is typically more powerful than the original HC test in normal mixture models. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  9. New fuel vault criticality analysis at Chinshan nuclear power station with new approaches to improve the storage flexibility

    International Nuclear Information System (INIS)

    Huang, P. H.

    2010-10-01

    The Chinshan new fuel vault (NFV) consists of 13 fuel storage racks, each rack may store 10 fuel assemblies. Prior to 2008, the NFV had never been used and the practice by the Taiwan Power Company (TPC) was to temporarily store the fuel assemblies in the shipping containers after received, until the inspection work was performed shortly before the outage, and then assemblies were loaded directly into the spent fuel pool (SFP). Starting from 2009, this practice has been revised since the new fuel contract would only supply a small amount of containers for storage, and the SFP would lose full-core-off load capability soon; therefore, use of NFV to store fuel assemblies following inspection becomes extremely crucial. The original Chinshan NFV criticality analysis was performed for the initial fuel design. Although many new fuel designs had been used (e.g., Atrium-10 reported in PBNC-14), no reanalysis had been performed because it was not anticipated that NFV would be used. Therefore, TPC requested the vendor to perform the analysis for Atrium-10. Originally, the vendor estimated that number of assemblies allowed to be stored would be limited severely to about 60. To enhance storage flexibility, Tpc proposed some new approaches: 1) All assemblies are assumed in vendor's standard method to contain a single limiting lattice for entire fuel length, it is suggested that axially zoned limiting lattices be selected based on characteristics of reloads to be delivered, and this significantly improves flexibility. 2) The maximum k-effective equation used by vendor was corrected (manufacturing tolerances were conservatively mistreated). Also, the vendor typically used 0.95 k-effective as the criterion, it is suggested that NUREG-0800 requirement (≤0.98 for optimum moderation conditions) be applied. After several iterations, all the 130 locations are allowed to store fuel. The analysis report has been approved by the authority in June 2008. (Author)

  10. New fuel vault criticality analysis at Chinshan nuclear power station with new approaches to improve the storage flexibility

    Energy Technology Data Exchange (ETDEWEB)

    Huang, P. H., E-mail: u808966@taipower.com.t [Taiwan Power Company, Department of Nuclear Generation, 242 Roosevelt Rd., Sec. 3, Taipei, Taiwan (China)

    2010-10-15

    The Chinshan new fuel vault (NFV) consists of 13 fuel storage racks, each rack may store 10 fuel assemblies. Prior to 2008, the NFV had never been used and the practice by the Taiwan Power Company (TPC) was to temporarily store the fuel assemblies in the shipping containers after received, until the inspection work was performed shortly before the outage, and then assemblies were loaded directly into the spent fuel pool (SFP). Starting from 2009, this practice has been revised since the new fuel contract would only supply a small amount of containers for storage, and the SFP would lose full-core-off load capability soon; therefore, use of NFV to store fuel assemblies following inspection becomes extremely crucial. The original Chinshan NFV criticality analysis was performed for the initial fuel design. Although many new fuel designs had been used (e.g., Atrium-10 reported in PBNC-14), no reanalysis had been performed because it was not anticipated that NFV would be used. Therefore, TPC requested the vendor to perform the analysis for Atrium-10. Originally, the vendor estimated that number of assemblies allowed to be stored would be limited severely to about 60. To enhance storage flexibility, Tpc proposed some new approaches: 1) All assemblies are assumed in vendor's standard method to contain a single limiting lattice for entire fuel length, it is suggested that axially zoned limiting lattices be selected based on characteristics of reloads to be delivered, and this significantly improves flexibility. 2) The maximum k-effective equation used by vendor was corrected (manufacturing tolerances were conservatively mistreated). Also, the vendor typically used 0.95 k-effective as the criterion, it is suggested that NUREG-0800 requirement ({<=}0.98 for optimum moderation conditions) be applied. After several iterations, all the 130 locations are allowed to store fuel. The analysis report has been approved by the authority in June 2008. (Author)

  11. Application of Integrated Verification Approach to FPGA-based Safety-Critical I and C System of Nuclear Power Plant

    Energy Technology Data Exchange (ETDEWEB)

    Ahmed, Ibrahim; Heo, Gyunyoung [Kyunghee Univ., Yongin (Korea, Republic of); Jung, Jaecheon [KEPCO, Ulsan (Korea, Republic of)

    2016-10-15

    Safety-critical instrumentation and control (I and C) system in nuclear power plant (NPP) implemented on programmable logic controllers (PLCs) plays a vital role in safe operation of the plant. The challenges such as fast obsolescence, the vulnerability to cyber-attack, and other related issues of software systems have currently led to the consideration of field programmable gate arrays (FPGAs) as an alternative to PLCs because of their advantages and hardware related benefits. Generally in FPGA design verification, the designers make use of verification techniques by writing the test benches which involved various stages of verification activities of register-transfer level (RTL), gate-level, and place and route. Writing the test benches is considerably time consuming and require a lot of efforts to achieve a satisfied desire results. Furthermore, performing the verification at each stage is a major bottleneck and demanded much activities and time. In addition, verification is conceivably, the most difficult and complicated aspect of any design. Therefore, in view of these, this work applied an integrated verification approach to the verification of FPGA-based I and C system in NPP that simultaneously verified the whole design modules using MATLAB/Simulink HDL Co-simulation models. Verification is conceivably, the most difficult and complicated aspect of any design, and an FPGA design is not an exception. Therefore, in this work, we introduced and discussed how an application of integrated verification technique to the verification and testing of FPGA-based I and C system design in NPP can facilitate the verification processes, and verify the entire design modules of the system simultaneously using MATLAB/Simulink HDL co-simulation models. In conclusion, the results showed that, the integrated verification approach through MATLAB/Simulink models, if applied to any design to be verified, could speed up the design verification and reduce the V and V tasks.

  12. Application of Integrated Verification Approach to FPGA-based Safety-Critical I and C System of Nuclear Power Plant

    International Nuclear Information System (INIS)

    Ahmed, Ibrahim; Heo, Gyunyoung; Jung, Jaecheon

    2016-01-01

    Safety-critical instrumentation and control (I and C) system in nuclear power plant (NPP) implemented on programmable logic controllers (PLCs) plays a vital role in safe operation of the plant. The challenges such as fast obsolescence, the vulnerability to cyber-attack, and other related issues of software systems have currently led to the consideration of field programmable gate arrays (FPGAs) as an alternative to PLCs because of their advantages and hardware related benefits. Generally in FPGA design verification, the designers make use of verification techniques by writing the test benches which involved various stages of verification activities of register-transfer level (RTL), gate-level, and place and route. Writing the test benches is considerably time consuming and require a lot of efforts to achieve a satisfied desire results. Furthermore, performing the verification at each stage is a major bottleneck and demanded much activities and time. In addition, verification is conceivably, the most difficult and complicated aspect of any design. Therefore, in view of these, this work applied an integrated verification approach to the verification of FPGA-based I and C system in NPP that simultaneously verified the whole design modules using MATLAB/Simulink HDL Co-simulation models. Verification is conceivably, the most difficult and complicated aspect of any design, and an FPGA design is not an exception. Therefore, in this work, we introduced and discussed how an application of integrated verification technique to the verification and testing of FPGA-based I and C system design in NPP can facilitate the verification processes, and verify the entire design modules of the system simultaneously using MATLAB/Simulink HDL co-simulation models. In conclusion, the results showed that, the integrated verification approach through MATLAB/Simulink models, if applied to any design to be verified, could speed up the design verification and reduce the V and V tasks

  13. On Advising Congress and the President

    Science.gov (United States)

    Gibbons, Jack H.

    2004-05-01

    I devoted two decades trying to enable improved access to science and technology issues for elected policymakers, and to bringing trained scientists and engineers into government. After 13 years as Director of OTA and more than five years serving the President as Science and Technology Advisor I can confirm Victor Hugo's observation that "Science says the first word on everything and the last word on nothing." There are strong similarities, but also major differences in the functions of advisor to the Congress vs. advisor to the President. These differences will be discussed by examples; lessons learned will be drawn. The potential contribution from S analysis/advice to all branches of government is much greater than currently exists. Our community can be more helpful by heeding lessons learned, participating in and reinforcing first-rate analyses, and countering the efforts of those who attempt to make political gains out of purposeful distortions of scientific consensus. Mark Twain once observed that "a lie can travel halfway around the world before truth can put on its shoes." In matters of S policy our community needs to learn how to put on our shoes more promptly.

  14. Kas president ikka tõesti eksis? / Hillar Padu

    Index Scriptorium Estoniae

    Padu, Hillar

    2008-01-01

    President Toomas Hendrik Ilvese esinemisest Hantõ-Mansiiskis soome-ugri rahvaste maailmakongressil. Autor on seisukohal, et parteiline kriitika president T. H. Ilvese aadressil tunnistab, et demokraatiale pole Eestis ohtu, nagu on mõnel pool mujal Ida-Euroopas. Ungari filosoofi Gaspar Miklos Tamasi artiklist "Tänapäeva Ida-Euroopa". Lisatud karikatuur. Ilmunud ka: Meie Maa : Saarte Suvenädal 11. juuli 2008, lk. 10, pealk.: Kas president Ilves astus ämbrisse?; Meie Maa : Saarte Suvenädal 18. juuli 2008, lk. 10, pealk.: President ei astunud ämbrisse!

  15. DIALOGUE NORD-SUD : ETUDE DE L’ACTE D’ENONCIATION DANS LE DISCOURS DU PRESIDENT PAUL BIYA AU SOMMET MONDIAL A COPENHAGUE

    Directory of Open Access Journals (Sweden)

    Jean Paul BALGA

    2010-11-01

    Full Text Available This article aims at analyzing the paths of the North and the South, in the context of the critical situation. We will conduct a case study through the means of an emblematic figure of the political scene in Central Africa: His Excellency Paul Biya. We will put forward his powerful speech delivered on December the 17th in Copenhagen at the World Summit on Climate Change. The President of the Republic of Cameroon distinctively made heard the voice of the black continent in the international forum at a global level. The commitment of the speaker is revealed especially in speech acts; the utterance system chosen by the speaker is rich and varied: deictics, personal pronouns, demonstratives, temporal locations, terms of statement and enunciation are heavily involved in the Head of the State’s determination, who sees himself as being Africa’s lawyer; for the African leader, language represents an agile way of action: „saying is doing”.

  16. Doing Counterwork in the Age of a Counterfeit President: Resisting a Trump-DeVos Education Agenda

    Science.gov (United States)

    Green, Terrance L.; Castro, Andrene

    2017-01-01

    In this article, we explore and conceptualize "counterwork" in education as a critical element for resistance and progressive social change in the era of Donald Trump's presidency. We first discuss education in the context of a Trump-DeVos administration, and how this milieu necessitates activist research and counterwork. Grounded in a…

  17. Managing Critical Weather Conditions in a Large-Scale Wind Based European Power System - The TWENTIES Project

    DEFF Research Database (Denmark)

    Detlefsen, N.; Sørensen, Poul Ejnar; Eriksen, P.

    2011-01-01

    the cut-off wind speed (typically 25 m/s). Experience has shown that a large offshore wind farm in this way can be shut down from full power to zero power in less than 5 minutes. Thus, in the planned offshore development in the North Sea, several GW of wind power could be shut down within less than one...

  18. Telex message to the Director General from the President of the Atomic Energy Organization of Iran

    International Nuclear Information System (INIS)

    1988-08-01

    The document reproduces the text of a telex message dated 19 July 1988 from the Deputy Prime Minister of the Islamic Republic of Iran and President of the Atomic Energy Organization of Iran to the Director General of the IAEA and the Director General's reply dated 29 July 1988, in connection with an Iraqi military attack of the Busher Nuclear Power Plant on 18 July 1988

  19. Measuring The Democratization Degree According To Law Number 42 Of 2008 Concerning General Election Of The President And Vice President

    OpenAIRE

    Putra Wijaya, I Dewa Made

    2014-01-01

    This research aims to study the consistency of the Act No 42 of 2008 concerning the generalelection on president and vice president related to the principles of democracy as stipulated inthe constitution of Indonesian republic of 1945. This research uses statutory and conceptualapproaches. The object of the research is the policy of the general election on president and vicepresident. While the subject of it are the parliament and government as legislator. The legalmaterial of the research co...

  20. Time Trials Versus Time-to-Exhaustion Tests: Effects on Critical Power, W', and Oxygen-Uptake Kinetics.

    Science.gov (United States)

    Karsten, Bettina; Baker, Jonathan; Naclerio, Fernando; Klose, Andreas; Bianco, Antonino; Nimmerichter, Alfred

    2018-02-01

    To investigate single-day time-to-exhaustion (TTE) and time-trial (TT) -based laboratory tests values of critical power (CP), W prime (W'), and respective oxygen-uptake-kinetic responses. Twelve cyclists performed a maximal ramp test followed by 3 TTE and 3 TT efforts interspersed by 60 min recovery between efforts. Oxygen uptake ( V ˙ O 2 ) was measured during all trials. The mean response time was calculated as a description of the overall [Formula: see text]-kinetic response from the onset to 2 min of exercise. TTE-determined CP was 279 ± 52 W, and TT-determined CP was 276 ± 50 W (P = .237). Values of W' were 14.3 ± 3.4 kJ (TTE W') and 16.5 ± 4.2 kJ (TT W') (P = .028). While a high level of agreement (-12 to 17 W) and a low prediction error of 2.7% were established for CP, for W' limits of agreements were markedly lower (-8 to 3.7 kJ), with a prediction error of 18.8%. The mean standard error for TTE CP values was significantly higher than that for TT CP values (2.4% ± 1.9% vs 1.2% ± 0.7% W). The standard errors for TTE W' and TT W' were 11.2% ± 8.1% and 5.6% ± 3.6%, respectively. The [Formula: see text] response was significantly faster during TT (~22 s) than TTE (~28 s). The TT protocol with a 60-min recovery period offers a valid, time-saving, and less error-filled alternative to conventional and more recent testing methods. Results, however, cannot be transferred to W'.

  1. Power

    DEFF Research Database (Denmark)

    Elmholdt, Claus Westergård; Fogsgaard, Morten

    2016-01-01

    and creativity suggests that when managers give people the opportunity to gain power and explicate that there is reason to be more creative, people will show a boost in creative behaviour. Moreover, this process works best in unstable power hierarchies, which implies that power is treated as a negotiable....... It is thus a central point that power is not necessarily something that breaks down and represses. On the contrary, an explicit focus on the dynamics of power in relation to creativity can be productive for the organisation. Our main focus is to elaborate the implications of this for practice and theory...

  2. Vabariigi president kohtus OECD peasekretäriga

    Index Scriptorium Estoniae

    2008-01-01

    President Toomas Hendrik Ilves kohtus 12. veebruaril 2008 Tallinnas Majandusliku Koostöö ja Arengu Organisatsiooni (OECD) peasekretäri Angel Gurria'ga, tänades teda panuse eest organisatsiooni laienemispoliitika edendamisel. Ilmunud ka: Meie Kodu 20. veebr. 2008, lk. 3, pealk.: President Ilves kohtus OECD peasekretäriga (Allk. Kristel Peterson)

  3. Jackie Robinson, President Eisenhower, and the Little Rock Crisis.

    Science.gov (United States)

    Vernon, John; And Others

    1997-01-01

    Presents background information and instructional materials for a lesson plan concerning the interaction between Jackie Robinson and President Eisenhower regarding the integration of public schools in Little Rock, Arkansas. Robinson chided the President for his cautious response to violent opposition to integration. Includes a copy of the…

  4. On 25 January Pervez Musharraf, president of Pakistan, visited CERN

    CERN Multimedia

    Maximilien Brice

    2006-01-01

    The President of the Islamic Republic of Pakistan, General Pervez Musharraf, welcomed by CERN's Director-General, Robert Aymar. The president is accompanied by an important delegation of five ministers from the Pakistani Government, the Chairman of Pakistan's Atomic Energy Commission (PAEC), Parvez Butt, and an eminent former Chairman of the Commission, Ishfaq Ahmad, who pioneered cooperation with CERN.

  5. Access Granted: First Female Presidents, Leadership Style, and Institutional Culture

    Science.gov (United States)

    Milligan, Michelle Lynne

    2010-01-01

    College and university presidents are the public face of not only their institution but also of higher education in general. Internal and external audiences alike turn to the president for leadership, inspiration, and action. While the gender demographics of student and faculty groups in higher education have become more equal, gender parity at…

  6. Linking the Occupational Pressures of College Presidents to Presidential Turnover

    Science.gov (United States)

    Tekniepe, Robert J.

    2014-01-01

    Community colleges are expected to serve the needs of their local communities. Hence, college presidents are called on to lead this collaboration between the college and the community. Presidents, however, are affected by a multitude of factors that contribute to abridged tenures, a scenario that can have harmful effects on the educational…

  7. Strategic Planning for New Presidents: Developing an Entrance Plan

    Science.gov (United States)

    Garza Mitchell, Regina L.; Maldonado, Cesar

    2015-01-01

    Community colleges are greatly impacted by turbulent external forces while also experiencing turnover in the topmost leadership positions. New presidents must learn how to lead an institution while also planning for purposeful change that will allow the college to thrive. In this article, the authors propose a method for new presidents to develop…

  8. 45 CFR 99.21 - Authority of presiding officer.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Authority of presiding officer. 99.21 Section 99.21 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION PROCEDURE FOR HEARINGS FOR THE CHILD CARE AND DEVELOPMENT FUND Hearing Procedures § 99.21 Authority of presiding officer...

  9. President istutas Torisse tamme / Eno-Gerrit Link

    Index Scriptorium Estoniae

    Link, Eno-Gerrit

    2007-01-01

    President Toomas Hendrik Ilves osales Toris Eesti sõjameeste mälestuskirikus traditsioonilisel vabadusvõitluse mälestusele pühendatud jumalateenistusel ja istutas kiriku kõrvale prominentide parki tamme. Varem on sellesse parki tammepuu istutanud president Arnold Rüütel, 20. augusti klubi, endine kaitseväe juhataja Aleksander Einseln ja peapiiskop Andres Põder

  10. Sloveenia president loob sõnadega rahu / Martin Jaigma

    Index Scriptorium Estoniae

    Jaigma, Martin

    2006-01-01

    Autori sõnul on muidu tagasihoidlikult riiki juhtinud Sloveenia president Janez Drnovshek asunud jõulisemalt tegutsema - president on käinud välja plaani, kuidas saavutada Kosovo iseseisvus ning lahendab humanitaarkriisi Sudaani piirkonnas Darfuris. Lisa: Janez Drnovsheki püüdlused

  11. 9 CFR 202.118 - Rule 18: Presiding officer.

    Science.gov (United States)

    2010-01-01

    ... submission of the report, shall be in the discretion of the presiding officer. (c) Reassignment. For any good... assigned to act as a presiding officer in any proceeding who (1) has any material pecuniary interest in any... person. (e) Procedure on petition for disqualification. Any party may file a petition for...

  12. President kinkis Skype'i juhile Ärma leiva

    Index Scriptorium Estoniae

    2009-01-01

    Tallinna Tehnoloogiapargis Tehnopol arutasid president Toomas Hendrik Ilves ja Skype'i tegevjuht Josh Silverman 19. märtsil 2009 innovatsiooni tähenduse üle globaalses maailmas. President kinkis J. Silvermanile Ärma talus küpsetatud leiva

  13. Transforming Higher Education in the Information Age: Presidents Respond.

    Science.gov (United States)

    Breslin, Richard D.; And Others

    1991-01-01

    College presidents respond to an article by Richard Nolan challenging college and university presidents and chancellors to transform their campuses for survival and competitive advantage in the information age. Respondents include Richard D. Breslin, David M. Clarke, Joseph Cronin, Thomas Ehrlich, Donald N. Langenberg, Harold McAninch, and Donald…

  14. Presidential Transition: The Experience of Two Community College Interim Presidents

    Science.gov (United States)

    Thompson, Matthew D.

    2010-01-01

    The purpose of this qualitative case study was to understand the experiences of two community college interim presidents, their characteristics, and how they led institutions following an abrupt presidential departure. There were two fundamental questions framing this research study, 1. How do two interim community college presidents lead…

  15. Presidents' Mindsets toward Resource Development at California Community Colleges

    Science.gov (United States)

    Bakhit, Kathy

    2014-01-01

    This study used the lens of Resource Dependency Theory to examine the mindsets of nine community college presidents in California as they responded to the decline in state funding. The literature indicated that community colleges are pursing alternative sources of funding and emphasized presidents' roles in leading and engaging in many activities.…

  16. US Foreign Policy under President Barack Obama and the ...

    African Journals Online (AJOL)

    Five years ago, in November 2008, Barack Hussein Obama was elected the 44th US president. Senator Obama's campaign message had been 'change', 'change we need', and 'change we should believe in'. In this post-Cold War era, the US is the only remaining superpower and the American president the world's most ...

  17. President kuulutas Lissaboni leppe välja

    Index Scriptorium Estoniae

    2008-01-01

    President Toomas Hendrik Ilves kuulutas 19. juunil 2008 välja Riigikogus 11. juunil 2008 vastu võetud Lissaboni lepingu ratifitseerimise seaduse. Ingl. k. ilmunud ka: Vaba Eesti Sõna 26. juuni 2008, lk. 12, pealk.: President Ilves: The EU must find a solution for its reform treaty together

  18. Women as University Presidents: Navigating the Administrative Labyrinth

    Science.gov (United States)

    Reis, Tania Carlson; Grady, Marilyn L.

    2018-01-01

    Eleven of the 81 public research universities within the Carnegie Classification of Doctoral Universities: Highest Research are led by woman presidents. Using Eagly & Carli's (2007) labyrinth framework, five of the women presidents were interviewed to identify their experiences navigating leadership barriers. Findings indicated that women…

  19. President Ilves töövisiidil USAs

    Index Scriptorium Estoniae

    2009-01-01

    President Toomas Hendrik Ilves alustas töövisiiti USA läänerannikul, teadus- ja kõrgtehnoloogia keskuses Silicon Valley's. Riigipea kohtus ka San Francisco linnapea Gavin Newsom'iga ja Stanfordi Ülikooli rektori John L. Hennessy'ga. Vabariigi President töövisiidil Ameerika Ühendriikides 9.-16.06.2009

  20. President vs. PM over the economy minister / Rokas M. Tracevskis

    Index Scriptorium Estoniae

    Tracevskis, Rokas M.

    2011-01-01

    15. veebruaril teatas Leedu president Dalia Grybauskaite, et seoses koolide remondiprojektiga ei usalda ta majandusminister Dainius Kreivyst. 21. veebruaril toimunud peaminister Andrius Kubiliuse ja majandusminister Dainius Kreivyse kohtumisel otsustati, et Kreivys jätkab majandusministrina. President oli koheselt teatanud, et nõuab viimase tagasiastumist

  1. Presidents bid farewell to Vike-Freiberga / Talis Saule Archdeacon

    Index Scriptorium Estoniae

    Archdeacon, Talis Saule

    2007-01-01

    Eesti president Toomas Hendrik Ilves ja Leedu president Valdas Adamkus jätsid 3. juulil 2007 Riias hüvasti ametist lahkuva Läti presidendi Vaira Vike-Freibergaga. Baltimaade liidrid arutasid koostöö küsimusi

  2. The Community College Presidency: Current Status and Future Outlook.

    Science.gov (United States)

    Vaughan, George B.; Mellander, Gustavo A.; Blois, Beverly

    This book, published by the American Association of Community Colleges, contains valuable information about the nation's community college presidents. The authors provide a comprehensive profile of these leaders, highlighting different characteristics most presidents hold in common as well as important differences that emerge when data are…

  3. President Ilves väisas metsapealinna / Arved Breidaks

    Index Scriptorium Estoniae

    Breidaks, Arved, 1975-

    2007-01-01

    President Toomas Hendrik Ilvese lühivisiidist Võrru. President lõunastas Roosisaarel Kuninga talus, külastas Sõmerpalu vallas puidutöötlusettevõtet GM Panels, osales laste metsateemaliste joonistuste näituse avamisel ning istutas Koreli oja äärsele puhkealale kuuse

  4. President Ronald Reagan speaks at STS 51-L Memorial service

    Science.gov (United States)

    1986-01-01

    President Ronald Reagan tells a large turnout of JSC employees and family and friends of the 51-L crewmembers about their accomplishments and sacrifices during memorial services held following the Challenger accident at Kennedy Space Center (KSC).'They slipped the surly bonds of earth to touch the face of God' the President told the thousands gathered on the central mall at JSC.

  5. President Ilves jagas Ruila lastele aabitsaid / Karin Gustasson

    Index Scriptorium Estoniae

    Gustasson, Karin

    2008-01-01

    Kernu valla Ruila kooli 138. õppeaasta algas piduliku aktusega, kus tervituskõnega esines president Toomas Hendrik Ilves. President andis esimesse klassi astuvale 18 õpilasele isiklikult üle aabitsad pühendusega "Õpi rõõmuga!"

  6. Results of President Obama's Race to the Top

    Science.gov (United States)

    Howell, William G.

    2015-01-01

    Caught between extraordinary public expectations and relatively modest constitutional authority, U.S. presidents historically have fashioned all sorts of mechanisms--executive orders, proclamations, memoranda--by which to move their objectives forward. William Howell asserts that under President Barack Obama's administration, presidential…

  7. Achieving Balance: Lessons Learned from University and College Presidents

    Science.gov (United States)

    Havice, Pamela A.; Williams, Frankie K.

    2005-01-01

    This study investigated strategies used by college and university presidents in balancing their professional and personal lives. The conceptual framework for this study comes from the work of Schein (1985, 1992). Lessons learned and words of wisdom from these presidents can enhance leadership effectiveness at all levels in higher education.

  8. Beyond the Headlines: Wounding and the Community College Presidency

    Science.gov (United States)

    Floyd, Deborah L.; Maslin-Ostrowski, Pat; Hrabak, Michael R.

    2010-01-01

    A framework for understanding the human side of leadership, especially wounding and leadership struggles, is described with an emphasis on stories of community college presidents. Practical advice and recommendations are offered to better equip aspiring and practicing community college presidents for leadership challenges. A key message is that…

  9. President Ilves met with leaders of the United States Congress

    Index Scriptorium Estoniae

    2007-01-01

    President Toomas Hendrik Ilves kohtus Washingtonis USA Kongressi esindajatekoja spiikri Nancy Pelosi ja kongresmenidega. Kõne all oli viisavabadus, võitlus küberkuritegevuse vastu, suhted Venemaaga. Vabariigi President töövisiidil Ameerika Ühendriikides 25.-26.06.2007

  10. Pay and Perks Creep Up for Private-College Presidents

    Science.gov (United States)

    Stripling, Jack

    2012-01-01

    Private-college presidents often draw scrutiny for their hefty compensation packages, but most of them have a ready comeback: I could make a lot more money in the corporate world. While this statement is surely sometimes true, it is also true that some of the nation's top-paid presidents continue to receive perks that their corporate counterparts…

  11. Final Technical Report on Quantifying Dependability Attributes of Software Based Safety Critical Instrumentation and Control Systems in Nuclear Power Plants

    International Nuclear Information System (INIS)

    Smidts, Carol; Huang, Fuqun; Li, Boyuan; Li, Xiang

    2016-01-01

    With the current transition from analog to digital instrumentation and control systems in nuclear power plants, the number and variety of software-based systems have significantly increased. The sophisticated nature and increasing complexity of software raises trust in these systems as a significant challenge. The trust placed in a software system is typically termed software dependability. Software dependability analysis faces uncommon challenges since software systems' characteristics differ from those of hardware systems. The lack of systematic science-based methods for quantifying the dependability attributes in software-based instrumentation as well as control systems in safety critical applications has proved itself to be a significant inhibitor to the expanded use of modern digital technology in the nuclear industry. Dependability refers to the ability of a system to deliver a service that can be trusted. Dependability is commonly considered as a general concept that encompasses different attributes, e.g., reliability, safety, security, availability and maintainability. Dependability research has progressed significantly over the last few decades. For example, various assessment models and/or design approaches have been proposed for software reliability, software availability and software maintainability. Advances have also been made to integrate multiple dependability attributes, e.g., integrating security with other dependability attributes, measuring availability and maintainability, modeling reliability and availability, quantifying reliability and security, exploring the dependencies between security and safety and developing integrated analysis models. However, there is still a lack of understanding of the dependencies between various dependability attributes as a whole and of how such dependencies are formed. To address the need for quantification and give a more objective basis to the review process -- therefore reducing regulatory uncertainty

  12. Final Technical Report on Quantifying Dependability Attributes of Software Based Safety Critical Instrumentation and Control Systems in Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Smidts, Carol [The Ohio State Univ., Columbus, OH (United States); Huang, Funqun [The Ohio State Univ., Columbus, OH (United States); Li, Boyuan [The Ohio State Univ., Columbus, OH (United States); Li, Xiang [The Ohio State Univ., Columbus, OH (United States)

    2016-03-25

    With the current transition from analog to digital instrumentation and control systems in nuclear power plants, the number and variety of software-based systems have significantly increased. The sophisticated nature and increasing complexity of software raises trust in these systems as a significant challenge. The trust placed in a software system is typically termed software dependability. Software dependability analysis faces uncommon challenges since software systems’ characteristics differ from those of hardware systems. The lack of systematic science-based methods for quantifying the dependability attributes in software-based instrumentation as well as control systems in safety critical applications has proved itself to be a significant inhibitor to the expanded use of modern digital technology in the nuclear industry. Dependability refers to the ability of a system to deliver a service that can be trusted. Dependability is commonly considered as a general concept that encompasses different attributes, e.g., reliability, safety, security, availability and maintainability. Dependability research has progressed significantly over the last few decades. For example, various assessment models and/or design approaches have been proposed for software reliability, software availability and software maintainability. Advances have also been made to integrate multiple dependability attributes, e.g., integrating security with other dependability attributes, measuring availability and maintainability, modeling reliability and availability, quantifying reliability and security, exploring the dependencies between security and safety and developing integrated analysis models. However, there is still a lack of understanding of the dependencies between various dependability attributes as a whole and of how such dependencies are formed. To address the need for quantification and give a more objective basis to the review process -- therefore reducing regulatory uncertainty

  13. Bose-Einstein condensation in chains with power-law hoppings: Exact mapping on the critical behavior in d -dimensional regular lattices

    Science.gov (United States)

    Dias, W. S.; Bertrand, D.; Lyra, M. L.

    2017-06-01

    Recent experimental progress on the realization of quantum systems with highly controllable long-range interactions has impelled the study of quantum phase transitions in low-dimensional systems with power-law couplings. Long-range couplings mimic higher-dimensional effects in several physical contexts. Here, we provide the exact relation between the spectral dimension d at the band bottom and the exponent α that tunes the range of power-law hoppings of a one-dimensional ideal lattice Bose gas. We also develop a finite-size scaling analysis to obtain some relevant critical exponents and the critical temperature of the BEC transition. In particular, an irrelevant dangerous scaling field has to be taken into account when the hopping range is sufficiently large to make the effective dimensionality d >4 .

  14. Bose-Einstein condensation in chains with power-law hoppings: Exact mapping on the critical behavior in d-dimensional regular lattices.

    Science.gov (United States)

    Dias, W S; Bertrand, D; Lyra, M L

    2017-06-01

    Recent experimental progress on the realization of quantum systems with highly controllable long-range interactions has impelled the study of quantum phase transitions in low-dimensional systems with power-law couplings. Long-range couplings mimic higher-dimensional effects in several physical contexts. Here, we provide the exact relation between the spectral dimension d at the band bottom and the exponent α that tunes the range of power-law hoppings of a one-dimensional ideal lattice Bose gas. We also develop a finite-size scaling analysis to obtain some relevant critical exponents and the critical temperature of the BEC transition. In particular, an irrelevant dangerous scaling field has to be taken into account when the hopping range is sufficiently large to make the effective dimensionality d>4.

  15. Experimental study of the large-scale axially heterogeneous liquid-metal fast breeder reactor at the fast critical assembly: Power distribution measurements and their analyses

    International Nuclear Information System (INIS)

    Iijima, S.; Obu, M.; Hayase, T.; Ohno, A.; Nemoto, T.; Okajima, S.

    1988-01-01

    Power distributions of the large-scale axially heterogeneous liquid-metal fast breeder reactor were studied by using the experiment results of fast critical assemblies XI, XII, and XIII and the results of their analyses. The power distributions were examined by the gamma-scanning method and fission rate measurements using /sup 239/Pu and /sup 238/U fission counters and the foil irradiation method. In addition to the measurements in the reference core, the power distributions were measured in the core with a control rod inserted and in a modified core where the shape of the internal blanket was determined by the radial boundary. The calculation was made by using JENDL-2 and the Japan Atomic Energy Research Institute's standard calculation system for fast reactor neutronics. The power flattening trend, caused by the decrease of the fast neutron flux, was observed in the axial and radial power distributions. The effect of the radial boundary shape of the internal blanket on the power distribution was determined in the core. The thickness of the internal blanket was reduced at its radial boundary. The influence of the internal blanket was observed in the power distributions in the core with a control rod inserted. The calculation predicted the neutron spectrum harder in the internal blanket. In the radial distributions of /sup 239/Pu fission rates, the space dependency of the calculated-to-experiment values was found at the active core close to the internal blanket

  16. A critical discourse analysis of Mahathir Mohamad’s speeches on the “war on terror”

    OpenAIRE

    Azimah Shurfa Mohammed Shukry

    2013-01-01

    This article is a Critical Discourse Analysis (CDA) of the discursive strategies employed by Mahathir Mohamed, former Prime Minister of Malaysia, in 10 of his speeches that express resistance and challenge to the former U.S. President, George W. Bush’s military ideology of “war on terror” post September 11, 2001. The study is guided by CDA’s focus on power relations and power struggle that are manifested in language. On speaking against terrorism, Mahathir’s dislike for the Bush administratio...

  17. Observability in electric power networks: identification critical measures methods; Observabilidade em redes de energia eletrica: metodos de identificacao de medidas criticas

    Energy Technology Data Exchange (ETDEWEB)

    London Junior, Joao Bosco Augusto

    1997-07-01

    One of the most important functions of the control and operation centers is to maintain service reliability in a electrical power system. In order to obtain a reliable operation of the power system, it is important to identify the critical measurements, and then to improve the measurement system using pseudo measurements. The goal of this work is to determine more efficient methods for critical measurement identification. A brief review of the some methods for observability analysis as well as two methodologies to identify critical measurements are presented. The first method has a combinatorial nature; the second one is supported by uni modular M matrix (incidence matrix of measurements for branches) and A matrix (incidence matrix of branch for nodes). The second method needs a combinatorial algorithm to be feasible, so that it becomes a slow method. Two new methods for critical measurements identification are presented in this work: the first one is based on the theory developed by Bretas (1996a), to analyse observability using graph paths; the second methods is supported y the Slutsker and Scudder (1987) theory, where identification is reached throughout the analysis of the jacobian matrix. (author)

  18. Access to Success: A Phenomenological Study on Women of Color College and University Presidents in Their Ascension to the Presidency

    Science.gov (United States)

    Zell, Ana Liza V.

    2017-01-01

    Purpose: The purpose of this qualitative, phenomenological study was to explore the lived experiences, successful career strategies, challenges and barriers, and effective leadership qualities of women of color college and university presidents in their ascension to the presidency. Methodology: For this qualitative, phenomenological research…

  19. 75 FR 22635 - President's Council of Advisors on Science and Technology; Meeting

    Science.gov (United States)

    2010-04-29

    ... President, The White House; Dr. Harold E. Varmus, President, Memorial Sloan-Kettering Cancer Center; and Dr. Eric S. Lander, President and Director, Broad Institute of MIT and Harvard. Meeting Accomodations...

  20. Understanding the critics : a case study of opposition to wind power initiatives in Europe and North America. Volume 1

    International Nuclear Information System (INIS)

    Etcheverry, J.

    2005-01-01

    The causes behind public opposition to wind power projects were examined. A summary of factors identified in existing literature as affecting public perception of wind farms included physical, contextual, political, and socio-economic concerns. It was suggested that opposition to wind projects was correlated with the types of institutional policies used in a country to support development of the renewable energy sector. Explicit policy choices directly affect the type of project ownership as well as public acceptance and opposition of wind power projects. A review of international wind power policies and development was presented. While Denmark pioneered advanced renewable tariffs (ARTs) and remain fourth in the world, with over 3177 MW, public opposition to wind power is developing due to an increasing shift in ownership from co-operatives to individuals. Germany uses ARTs and has become leader in the world with over 17,000 MW. Canada uses tendering and ranks fourteenth in the world, with 570 MW. Opposition to wind power is increasing in some provinces who argue that it poses a threat to tourism opportunities and presents a visual intrusion to the landscape. Opposition in the United Kingdom has existed for decades. However, the United Kingdom ranks ninth in the world, with 880 MW and has one of Europe's best wind regimes. Spain uses ARTs and now ranks second in the world with 8263 MW with a new target of 20,000 MW by 2011. Some locations in Spain have been declared out of bounds for wind power development, and opposition is developing against proposed offshore facilities. It was concluded that the wind power industry needs to advocate for community power policy initiatives, listen to local people and maximize local participation, as well as accepting that some areas will remain out of bounds for development. refs., tabs., figs

  1. 75 FR 9006 - President's Council of Advisors on Science and Technology; Notice of Meeting: Partially Closed...

    Science.gov (United States)

    2010-02-26

    .... Varmus, President, Memorial Sloan-Kettering Cancer Center; and Dr. Eric S. Lander, President and Director, Broad Institute of MIT and Harvard. Meeting Accomodations: Individuals requiring special accommodation...

  2. Open letter to President of CERN Council

    CERN Multimedia

    Association du personnel

    2010-01-01

    Geneva, 1 February 2010 Dear President of Council, The active and retired members of the Pension Fund are very concerned and indignant about the way in which Council is dealing with the alarming question of the balance of the Fund. Indeed, in 2004 the actuarial review had alerted Council to the matter of the technical deficit of the scheme and the insufficient funding of its benefit scheme. At that time, Council contented itself with putting in place a mechanism of under-indexation of pensions – arbitrary and discriminatory in that it called on the solidarity of the pensioners only – and with deciding on a very small increase in contributions to the Fund, a token measure having no relation to the size of the problem. Since 2004, all that Council has done is to ask for one study after another: in December 2004, December 2005, December 2006, June 2007, and June 2008. The conclusions of the last study, carried out by the Pension Fund Governing Board, were presented on 11 November 2009. Th...

  3. President's Commission and the normal accident

    International Nuclear Information System (INIS)

    Perrow, C.

    1982-01-01

    This chapter incorporates the major points of an analysis of the accident at Three Mile Island that I prepared in September 1979. In contrast to the findings of the President's Commission (1979), I did not view the accident as the result of operator error, an inept utility, or a negligent Nuclear Regulatory Commission but as a consequence of the complexity and interdependence that characterize the system itself. I argued that the accident was inevitable-that is, that it could not have been prevented, foreseen, or quickly terminated, because it was incomprehensible. It resembled other accidents in nuclear plants and in other high risk, complex and highly interdependent operator-machine systems; none of the accidents were caused by management or operator ineptness or by poor government regulation, though these characteristics existed and should have been expected. I maintained that the accident was normal, because in complex systems there are bound to be multiple faults that cannot be avoided by planning and that operators cannot immediately comprehend

  4. Evaluation of Model Driven Development of Safety Critical Software in the Nuclear Power Plant I and C system

    International Nuclear Information System (INIS)

    Jung, Jae Cheon; Chang, Hoon Seon; Chang, Young Woo; Kim, Jae Hack; Sohn, Se Do

    2005-01-01

    The major issues of the safety critical software are formalism and V and V. Implementing these two characteristics in the safety critical software will greatly enhance the quality of software product. The structure based development requires lots of output documents from the requirements phase to the testing phase. The requirements analysis phase is open omitted. According to the Standish group report in 2001, 49% of software project is cancelled before completion or never implemented. In addition, 23% is completed and become operational, but over-budget, over the time estimation, and with fewer features and functions than initially specified. They identified ten success factors. Among them, firm basic requirements and formal methods are technically achievable factors while the remaining eight are management related. Misunderstanding of requirements due to lack of communication between the design engineer and verification engineer causes unexpected result such as functionality error of system. Safety critical software shall comply with such characteristics as; modularity, simplicity, minimizing the sub-routine, and excluding the interrupt routine. In addition, the crosslink fault and erroneous function shall be eliminated. The easiness of repairing work after the installation shall be achieved as well. In consideration of the above issues, we evaluate the model driven development (MDD) methods for nuclear I and C systems software. For qualitative analysis, the unified modeling language (UML), functional block language (FBL) and the safety critical application environment (SCADE) are tested for the above characteristics

  5. The Power of Knowledge: A Critical Analysis of the Depiction of Ethnic Minorities in China's Elementary Textbooks

    Science.gov (United States)

    Chu, Yiting

    2015-01-01

    This study critically analyzes knowledge about: (1) ethnic minority groups; (2) the dominant Han group; and (3) the interaction between ethnic minorities and Han presented in three types of elementary textbooks used in China. The analysis reveals that the knowledge about and the values and beliefs of the Han people are overwhelmingly dominant in…

  6. The Power of Debate: Reflections on the Potential of Debates for Engaging Students in Critical Thinking about Controversial Geographical Topics

    Science.gov (United States)

    Healey, Ruth L.

    2012-01-01

    Many controversial subjects characterize geography in the 21st century. Issues such as climate change, sustainability and social exclusion generate much discussion and often involve clear differences in opinion of how they might be addressed. Higher education is an important space for critical engagement with challenging issues. Preparing for and…

  7. Presidents' green rhetoric at U.N. questioned / Joel Alas

    Index Scriptorium Estoniae

    Alas, Joel

    2007-01-01

    President Toomas Hendrik Ilves kõneles 24. septembril 2007 ÜRO peakorteris toimunud kliimakonverentsil, tehes seda Euroopa Liidu eesistujamaa Portugali palvel kogu Euroopa Liidu nimel. Erakonna Eestimaa Rohelised liider Marek Strandberg seab kahtluse alla mõnede president T.H. Ilvese poolt esitatud väidete paikapidavuse. Leedu presidendi Valdas Adamkuse ja Läti presidendi Valdis Zatlersi poolt väljendatud seisukohtadest. Vabariigi President töövisiidil Ameerika Ühendriikides 20.-26.09.2007

  8. Novel Power Flow Problem Solutions Method’s Based on Genetic Algorithm Optimization for Banks Capacitor Compensation Using an Fuzzy Logic Rule Bases for Critical Nodal Detections

    Directory of Open Access Journals (Sweden)

    Nasri Abdelfatah

    2011-01-01

    Full Text Available The Reactive power flow’s is one of the most electrical distribution systems problem wich have great of interset of the electrical network researchers, it’s  cause’s active power transmission reduction, power losses decreasing, and  the drop voltage’s increase. In this research we described the efficiency of the FLC-GAO approach to solve the optimal power flow (OPF combinatorial problem. The proposed approach employ tow algorithms, Fuzzy logic controller (FLC algorithm for critical nodal detection and gentic algorithm  optimization (GAO algorithm for optimal seizing capacitor.GAO method is more efficient in combinatory problem solutions. The proposed approach has been examined and tested on the standard IEEE 57-bus the resulats show the power loss minimization denhancement, voltage profile, and stability improvement. The proposed approach results have been compared to those that reported in the literature recently. The results are promising and show the effectiveness and robustness of the proposed approach.

  9. Differences among estimates of critical power and anaerobic work capacity derived from five mathematical models and the three-minute all-out test.

    Science.gov (United States)

    Bergstrom, Haley C; Housh, Terry J; Zuniga, Jorge M; Traylor, Daniel A; Lewis, Robert W; Camic, Clayton L; Schmidt, Richard J; Johnson, Glen O

    2014-03-01

    Estimates of critical power (CP) and anaerobic work capacity (AWC) from the power output vs. time relationship have been derived from various mathematical models. The purpose of this study was to examine estimates of CP and AWC from the multiple work bout, 2- and 3-parameter models, and those from the 3-minute all-out CP (CP3min) test. Nine college-aged subjects performed a maximal incremental test to determine the peak oxygen consumption rate and the gas exchange threshold. On separate days, each subject completed 4 randomly ordered constant power output rides to exhaustion to estimate CP and AWC from 5 regression models (2 linear, 2 nonlinear, and 1 exponential). During the final visit, CP and AWC were estimated from the CP3min test. The nonlinear 3-parameter (Nonlinear-3) model produced the lowest estimate of CP. The exponential (EXP) model and the CP3min test were not statistically different and produced the highest estimates of CP. Critical power estimated from the Nonlinear-3 model was 14% less than those from the EXP model and the CP3min test and 4-6% less than those from the linear models. Furthermore, the Nonlinear-3 and nonlinear 2-parameter (Nonlinear-2) models produced significantly greater estimates of AWC than did the linear models and CP3min. The current findings suggested that the Nonlinear-3 model may provide estimates of CP and AWC that more accurately reflect the asymptote of the power output vs. time relationship, the demarcation of the heavy and severe exercise intensity domains, and anaerobic capabilities than will the linear models and CP3min test.

  10. Study of reactor parameters of on critical systems, Phase I: Safety report for RB zero power reactor

    International Nuclear Information System (INIS)

    Raisic, N.

    1962-09-01

    In addition to the safety analysis for the zero power RB reactor, this report contains a general description of the reactor, reactor components, auxiliary equipment and the reactor building. Reactor Rb has been reconstructed during 1961-1962 and supplied with new safety-control system as well as with a complete dosimetry instrumentation. Since RB reactor was constructed without shielding special attention is devoted to safety and protection of the staff performing experiments. Due to changed circumstances in the Institute ( start-up of the RA 7 MW power reactor) the role of the RB reactor was redefined

  11. Application of the single-channel continuous synthesis method to criticity and power distribution calculations in thermal reactors

    International Nuclear Information System (INIS)

    Medrano Asensio, Gregorio.

    1976-06-01

    A detailed power distribution calculation in a large power reactor requires the solution of the multigroup 3D diffusion equations. Using the finite difference method, this computation is too expensive to be performed for design purposes. This work is devoted to the single channel continous synthesis method: the choice of the trial functions and the determination of the mixing functions are discussed in details; 2D and 3D results are presented. The method is applied to the calculation of the IAEA ''Benchmark'' reactor and the results obtained are compared with a finite element resolution and with published results [fr

  12. V and V-based remaining fault estimation model for safety–critical software of a nuclear power plant

    International Nuclear Information System (INIS)

    Eom, Heung-seop; Park, Gee-yong; Jang, Seung-cheol; Son, Han Seong; Kang, Hyun Gook

    2013-01-01

    Highlights: ► A software fault estimation model based on Bayesian Nets and V and V. ► Use of quantified data derived from qualitative V and V results. ► Faults insertion and elimination process was modeled in the context of probability. ► Systematically estimates the expected number of remaining faults. -- Abstract: Quantitative software reliability measurement approaches have some limitations in demonstrating the proper level of reliability in cases of safety–critical software. One of the more promising alternatives is the use of software development quality information. Particularly in the nuclear industry, regulatory bodies in most countries use both probabilistic and deterministic measures for ensuring the reliability of safety-grade digital computers in NPPs. The point of deterministic criteria is to assess the whole development process and its related activities during the software development life cycle for the acceptance of safety–critical software. In addition software Verification and Validation (V and V) play an important role in this process. In this light, we propose a V and V-based fault estimation method using Bayesian Nets to estimate the remaining faults for safety–critical software after the software development life cycle is completed. By modeling the fault insertion and elimination processes during the whole development phases, the proposed method systematically estimates the expected number of remaining faults.

  13. President Ilves kohtus Lähis-Ida oluliste poliitikutega

    Index Scriptorium Estoniae

    2009-01-01

    President Toomas Hendrik Ilves, kes osales Maailma Majandusfoorumi Lähis-Ida piirkondlikul konverentsil, kohtus 15. mail 2009 Jordaania kuninga Abdullah II ja Iraagi asepresidendi Adil Abd Al-Mahdi'ga

  14. Annual Report to the President and the Congress

    National Research Council Canada - National Science Library

    Rumsfeld, Donald H

    2004-01-01

    When this Administration took office, the President charged us with a mission - to challenge the status quo, and prepare the Department of Defense to meet the new threats our nation will face as the 21st century unfolds...

  15. Estonian President Ilves: Euro introduction was a "fantastic idea"

    Index Scriptorium Estoniae

    2011-01-01

    President Toomas Hendrik Ilves nõudis Viinis maailmapoliitika konverentsi ajal uudisteagentuurile APA antud usutluses rangemat rahanduspoliitilist distsipliini.Visiit Šveitsi ja Austriasse 07.12.2011 - 11.12.2011

  16. President andis üle noore teadlase preemia

    Index Scriptorium Estoniae

    2011-01-01

    President Toomas Hendrik Ilves andis 19. detsembril 2011 Kadriorus programmeerimiskeele teooriale ja krüptoloogiale spetsialiseerunud arvutiteadlasele Peeter Laudile üle Vabariigi Presidendi Kultuurirahastu noore teadlase preemia summas 4800 eurot

  17. 2017-2018 Hospitality Expense Reports for Jean Lebel, President

    International Development Research Centre (IDRC) Digital Library (Canada)

    SD

    Page 1. Description: World Refugee Council lunch to discuss the refugee status. Date: 2017-05-17. Attendees: 25 (IDRC 4). Location: Ottawa. Total: $753.33. Comments: 2017-2018 Hospitality Expense Reports for Jean Lebel, President.

  18. 2017-2018 Hospitality Expense Reports for Jean Lebel, President

    International Development Research Centre (IDRC) Digital Library (Canada)

    Chantal Taylor

    Page 1. Description: Lunch - Discussion of development research issues. Date: 2017-09-26. Attendees: 4 (3 IDRC). Location: Ottawa. Total: $64.00. Comments: 2017-2018 Hospitality Expense Reports for Jean Lebel, President.

  19. 2017-2018 Hospitality Expense Reports for Jean Lebel, President

    International Development Research Centre (IDRC) Digital Library (Canada)

    Chantal Taylor

    Page 1. Description: Lunch - Discussion of development research issues. Date: 2017-10-20. Attendees: 2 (1 IDRC). Location: Ottawa. Total: $32.00. Comments: 2017-2018 Hospitality Expense Reports for Jean Lebel, President.

  20. President Ilves avas Pärnus voodivabriku / Kalev Vilgats

    Index Scriptorium Estoniae

    Vilgats, Kalev

    2009-01-01

    President Toomas Hendrik Ilves viibis 16. novembril 2009 Pärnus Trading House Scandinavia AB kontserni kuuluva OÜ Stram voodivabriku avamisel. Riigipea tunnustas ettevõtte omanikku Peter Hunti uute töökohtade loomise eest

  1. Polish president escapes domestic troubles during state visit / Milda Seputyte

    Index Scriptorium Estoniae

    Seputyte, Milda

    2005-01-01

    Poola presidenti Aleksander Kwasnievskit kritiseeritakse, kuna ta ei soovi olla naftakompanii Orlen erastamisjuhtumi tunnistajaks. President sõitis visiidile Leetu, et arutada 9. mai Moskva pidustustega seonduvat ning määratleda Leedu ja Poola panust Euroopa Liidu poliitikasse

  2. Visit of the President of the Swiss Confederation

    CERN Multimedia

    Anaïs Schaeffer

    2016-01-01

    On 24 March, CERN welcomed Johann Schneider-Ammann, President of the Swiss Confederation.   President Johann Schneider-Ammann arrived to CERN in the morning, where he was welcomed by CERN Director-General Fabiola Gianotti. During the visit, the President was accompanied by Erik Reumann, spokesperson of the Federal Department of Economic Affairs, Education and Research, Alexandre Fasel, Ambassador and Permanent Representative of Switzerland to the United Nations Office and other international organisations in Geneva, and Patrick Pardo, counsellor at the permanent Mission of Switzerland to the United Nations Office and other international organizations in Geneva. In the Main Building he exchanged a few words with Frédérick Bordry, Director for Accelerators and Technology, Martin Steinacher, Director for Finance and Human Resources, and Friedemann Eder, Head of CERN Host States relations service. President Johann Schneider-Ammann also signed the guestbook of the Organ...

  3. Markel senior vice president to give Wachovia Lecture

    OpenAIRE

    Ho, Sookhan

    2008-01-01

    Markel Corporation's senior vice president and chief financial officer Richard R. Whitt will give a talk on Thursday, Nov. 13, as the Wachovia Distinguished Speaker in the Pamplin College of Business.

  4. President Roosevelt's 1940 Dedication of the First NCI Building

    Science.gov (United States)

    Watch this video excerpt of the dedication of the National Institute of Health, October 31, 1940. President Roosevelt spoke of the importance of the National Cancer Institute, which would be located in Building 6.

  5. President Ilves gives interview to Russian Interfax news service

    Index Scriptorium Estoniae

    2006-01-01

    President Toomas Hendrik Ilvese intervjuust Venemaa agentuurile Interfax. Küsimused puudutasid Eesti-Vene suhteid, piirilepingut, venelaste olukorda Eestis, Tallinnas asuva Teise maailmasõja mälestusmärgi teisaldamise võimalust

  6. 78 FR 45255 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2013-07-26

    ... Telecommunications Advisory Committee AGENCY: National Protection and Programs Directorate, DHS. [[Page 45256... President's National Security Telecommunications Advisory Committee (NSTAC) will meet on Tuesday, August 20... related to national security and emergency preparedness (NS/EP) telecommunications policy. Agenda: The...

  7. 75 FR 29781 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2010-05-27

    ...] President's National Security Telecommunications Advisory Committee AGENCY: National Protection and Programs... Security Telecommunications Advisory Committee (NSTAC) will be meeting by teleconference; the meeting will... telecommunications policy. Notice of this meeting is given under the Federal Advisory Committee Act (FACA), Public...

  8. 75 FR 3913 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2010-01-25

    ...] President's National Security Telecommunications Advisory Committee AGENCY: National Communications System... Telecommunications Advisory Committee (NSTAC) will be meeting by teleconference; the meeting will be open to the... implementing national security and emergency preparedness telecommunications policy. Notice of this meeting is...

  9. President attacks Seglins on comments / Talis Saule Archdeacon

    Index Scriptorium Estoniae

    Archdeacon, Talis Saule

    2008-01-01

    Läti president kritiseeris Läti siseministrit Mareks Seglinsit, kui viimane kasutas inglaste iseloomustamiseks ebatsensuurset väljendit, saades teada, et Läti Vabadussamba rüvetajateks olid briti kodanikud

  10. President kinnitas süümevande ehtsust

    Index Scriptorium Estoniae

    2006-01-01

    President Arnold Rüütel teatas, et pole süümevannet andes midagi salanud ega valet vandunud ning on alusetu seostada tema nõukogudeaegset tegevust Johannes Hindi represseerimisega. Arvamust avaldab presidendikandidaat Toomas Hendrik Ilves

  11. 77 FR 65393 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2012-10-26

    ... its business. ADDRESSES: The meeting will be held via a conference call. For access to the conference... President regarding their review of the Department of Homeland Security's (DHS) National Cybersecurity and...

  12. 2016-2017 Hospitality Expense Report for Jean Lebel, President

    International Development Research Centre (IDRC) Digital Library (Canada)

    Beata Bialic

    Page 1. Description: Lunch to discuss IDRC Strategic Planning with consultant. Date: 2016-06-10. Attendees: 3 (IDRC 2). Location: Ottawa. Total: $72.41. Comments: 2016-2017 Hospitality Expense Report for Jean Lebel, President.

  13. 78 FR 8160 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2013-02-05

    ... DEPARTMENT OF HOMELAND SECURITY [Docket No. DHS-2013-0002] President's National Security... National Security Telecommunications Advisory Committee (NSTAC) will meet on Thursday, February 21, 2013... matters related to national security and emergency preparedness telecommunications policy. Agenda: The...

  14. Executive Assistant to the Vice-President, Corporate Strategy and ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Job Summary Under the direction of the Vice-President, Corporate Strategy and ... between the Corporate Strategy and Communications Management sides of the team. ... Maintains personnel and human resources records for the Division.

  15. President vabastas Jüri Sakkarti kohtuniku ametist / Tanel Mazur

    Index Scriptorium Estoniae

    Mazur, Tanel, 1971-

    2010-01-01

    President Toomas Hendrik Ilves kirjutas 9. veebruaril 2010 alla otsusele vabastada Jüri Sakkart Viru Maakohtu kohtuniku ametist tema enda soovil. Kaitsepolitsei on J. Sakkarti kuriteokahtlustusega kinni pidanud

  16. President Ilves autasustas esseekonkursi võitjaid / Kristel Peterson

    Index Scriptorium Estoniae

    Peterson, Kristel

    2007-01-01

    President Toomas Hendrik Ilves autasustas 22. juunil 2007 Kadriorus esseevõistluse "Millises Eestis ma tahan elada?" võitjaid. Töid hinnati põhikooliõpilaste, keskkooliõpilaste ning täiskasvanute arvestuses

  17. 2016-2017 Hospitality Expense Reports for Jean Lebel, President

    International Development Research Centre (IDRC) Digital Library (Canada)

    Beata Bialic

    Page 1. Description: Lunch with government official on current programming. Date: 2016-11-30. Attendees: 2 (IDRC 1). Location: Ottawa. Total: $57.00. Comments: 2016-2017 Hospitality Expense Reports for Jean Lebel, President.

  18. 2016-2017 Hospitality Expense Reports for Jean Lebel, President

    International Development Research Centre (IDRC) Digital Library (Canada)

    chantal Taylor

    Page 1. Description: Lunch to discuss IDRC's mandate and programming with foreign official. Date: 2016-04-08. Attendees: 3 (IDRC 2). Location: Ottawa. Total: $51.00. Comments: 2016-2017 Hospitality Expense Reports for Jean Lebel, President.

  19. 2016-2017 Hospitality Expense Reports for Jean Lebel, President

    International Development Research Centre (IDRC) Digital Library (Canada)

    Beata Bialic

    Page 1. Description: Lunch with government official to discuss current IDRC programming. Date: 2016-11-21. Attendees: 2 (IDRC 1). Location: Ottawa. Total: $57.00. Comments: 2016-2017 Hospitality Expense Reports for Jean Lebel, President.

  20. 2016-2017 Hospitality Expense Reports for Jean Lebel, President

    International Development Research Centre (IDRC) Digital Library (Canada)

    Beata Bialic

    Page 1. Description: Lunch with government official on current programming. Date: 2016-12-09. Attendees: 2 (IDRC 1). Location: Ottawa. Total: $72.00. Comments: 2016-2017 Hospitality Expense Reports for Jean Lebel, President.