WorldWideScience

Sample records for reactor tar-1 programa

  1. Reactors

    CERN Document Server

    International Electrotechnical Commission. Geneva

    1988-01-01

    This standard applies to the following types of reactors: shunt reactors, current-limiting reactors including neutral-earthing reactors, damping reactors, tuning (filter) reactors, earthing transformers (neutral couplers), arc-suppression reactors, smoothing reactors, with the exception of the following reactors: small reactors with a rating generally less than 2 kvar single-phase and 10 kvar three-phase, reactors for special purposes such as high-frequency line traps or reactors mounted on rolling stock.

  2. Programas televisivos

    Directory of Open Access Journals (Sweden)

    Kilpp, Suzana

    2003-01-01

    Full Text Available Costuma-se analisar a televisão tomando os programas por referência - e em especial, o conteúdo dos mesmos - estendendo a crítica das representações de um programa, para a programação, para as emissoras e para a TV como um todo. Nessa perspectiva, os programas têm sido tratados como os produtos que as emissoras de TV oferecem aos espectadores, num cardápio chamado de grade de programação

  3. Reactor

    Science.gov (United States)

    Evans, Robert M.

    1976-10-05

    1. A neutronic reactor having a moderator, coolant tubes traversing the moderator from an inlet end to an outlet end, bodies of material fissionable by neutrons of thermal energy disposed within the coolant tubes, and means for circulating water through said coolant tubes characterized by the improved construction wherein the coolant tubes are constructed of aluminum having an outer diameter of 1.729 inches and a wall thickness of 0.059 inch, and the means for circulating a liquid coolant through the tubes includes a source of water at a pressure of approximately 350 pounds per square inch connected to the inlet end of the tubes, and said construction including a pressure reducing orifice disposed at the inlet ends of the tubes reducing the pressure of the water by approximately 150 pounds per square inch.

  4. Desalination plan with nuclear reactors as part of a sustainable development program in Mexico; Plan de desalinizacion con reactores nucleares como parte de un programa de desarrollo sustentable en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Rojas A, O; Calleros M, G., E-mail: oziel.rojas.siimisa@gmail.com [Soluciones en Instrumentacion Integral y Mantenimiento Industrial y Servicios, S. A. de C. V. (Mexico)

    2016-09-15

    This paper presents a project for the desalination of seawater with nuclear reactors, in order to supply fresh water to the populations near to the nuclear power plant. A case study is proposed with the nuclear power plant of Laguna Verde, implementing a system that allows taking advantage of the residual heat of the seawater condensate stage and with this, to supply drinking water to the surrounding localities where the vital liquid is scarce. In addition, legislation is proposed to allow some of the thermal energy generated by reactors producing electrical energy in Mexico to be used for the desalination of seawater and/or hydrogen production. (Author)

  5. Simulation in 3 dimensions of a cycle 18 months for an BWR type reactor using the Nod3D program; Simulacion en 3 dimensiones de un ciclo de 18 meses para un reactor BWR usando el programa Nod3D

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez, N.; Alonso, G. [ININ, A.P. 18-1027, 11801 Mexico D.F. (Mexico)]. E-mail: nhm@nuclear.inin.mx; Valle, E. del [IPN, ESFM, 07738 Mexico D.F. (Mexico)

    2004-07-01

    The development of own codes that you/they allow the simulation in 3 dimensions of the nucleus of a reactor and be of easy maintenance, without the consequent payment of expensive use licenses, it can be a factor that propitiates the technological independence. In the Department of Nuclear Engineering (DIN) of the Superior School of Physics and Mathematics (ESFM) of the National Polytechnic Institute (IPN) a denominated program Nod3D has been developed with the one that one can simulate the operation of a reactor BWR in 3 dimensions calculating the effective multiplication factor (kJJ3, as well as the distribution of the flow neutronic and of the axial and radial profiles of the power, inside a means of well-known characteristics solving the equations of diffusion of neutrons numerically in stationary state and geometry XYZ using the mathematical nodal method RTN0 (Raviart-Thomas-Nedelec of index zero). One of the limitations of the program Nod3D is that it doesn't allow to consider the burnt of the fuel in an independent way considering feedback, this makes it in an implicit way considering the effective sections in each step of burnt and these sections are obtained of the code Core Master LEND. However even given this limitation, the results obtained in the simulation of a cycle of typical operation of a reactor of the type BWR are similar to those reported by the code Core Master LENDS. The results of the keJ - that were obtained with the program Nod3D they were compared with the results of the code Core Master LEND, presenting a difference smaller than 0.2% (200 pcm), and in the case of the axial profile of power, the maxim differs it was of 2.5%. (Author)

  6. Capture programs, analysis, data graphication for the study of the thermometry of the TRIGA Mark III reactor core; Programas de captura, analisis y graficado de datos para el estudio de la termometria del nucleo del reactor TRIGA Mark III

    Energy Technology Data Exchange (ETDEWEB)

    Paredes G, L.C

    1991-05-15

    This document covers the explanation of the capture programs, analysis and graphs of the data obtained during the measurement of the temperatures of the instrumented fuel element of the TRIGA Mark III reactor and of the coolant one near to this fuel, using the conversion card from Analogic to Digital of 'Data Translation', and using a signal conditioner for five temperature measurers with the help of thermo par type K, developed by the Simulation and Control of the nuclear systems management department, which gives a signal from 0 to 10 Vcd for an interval of temperature of 0 to 1000 C. (Author)

  7. Programa de derecho penal

    OpenAIRE

    2010-01-01

    Programa detallado del curso: Delitos i penas en general - Delincuentes i modo de graduar los delitos i de aplicar las penas - Delitos i culpas contra el estado, i sus penas - Delitos i culpas contra los particulares: sus penas - Establecimienot de castigos

  8. Programa De Educacion Interamericana.

    Science.gov (United States)

    Texas A and M Univ., College Station.

    PROGRAMA DE EDUCACION INTERAMERICANA is a project of Texas A&M University in liaison with the Bryan Independent School District. The objectives of the program are to improve the knowledge and understanding of Texas teachers and students about other American cultures. Study teams of educators research and, in midsummer, travel to selected…

  9. Nuclear Reactors

    Energy Technology Data Exchange (ETDEWEB)

    Hogerton, John

    1964-01-01

    This pamphlet describes how reactors work; discusses reactor design; describes research, teaching, and materials testing reactors; production reactors; reactors for electric power generation; reactors for supply heat; reactors for propulsion; reactors for space; reactor safety; and reactors of tomorrow. The appendix discusses characteristics of U.S. civilian power reactor concepts and lists some of the U.S. reactor power projects, with location, type, capacity, owner, and startup date.

  10. Programa "Cine y Salud"

    OpenAIRE

    Gallego Diéguez, Javier; Gurpegui Vidal, Carlos

    2006-01-01

    El Programa «Cine y Salud,, es una herramienta para mejorar la calidad de la educación para la salud que realiza el profesorado de la educación secundaria obligatoria (ESO). El cine permite profundizar en el área emocional y de desarrollo de habilidades personales, y ayuda además a reflejar situaciones de la vida cotidiana de los jóvenes para facilitar su reflexión sobre las mismas. Cada curso, Cine y Salud llega actualmente a más de 20.000 adolescentes aragoneses.____________________________...

  11. Programa Parque Preservado

    Directory of Open Access Journals (Sweden)

    Marieta Cardoso Maciel

    2002-06-01

    Full Text Available A falta de projetos arquitetônicos paisagísticos, sua execução e fiscalização para os espaços livres de uso público de Belo Horizonte, já destinados legalmente a parques, ocasionou sua inadequada ocupação pela população em geral. O programa teve como meta a transformação efetiva dessas áreas em parques públicos, possibilitando seu uso público imediato. Em sua maioria não possuíam estudos preliminares, tampouco projetos definitivos elaborados. Nesses casos, instalou-se o ambiente núcleo, necessário e atraente ao uso público, de tal forma que fosse possível a posterior elaboração do projeto. Naquelas áreas em que o projeto já existia, o ambiente núcleo foi estrategicamente localizado, de forma que não interferisse na implantação do projeto original. Com este programa, elevou-se o índice de área verde por habitante na cidade, melhorou-se a qualidade de vida da população, aumentou-se a possibilidade de atividades de lazer, além do envolvimento e da responsabilidade das comunidades no processo de implantação, operacionalização e gestão dos parques públicos. Também se demonstra uma nova ótica na elaboração de projetos de parques: implanta-se o ambiente núcleo e estimula-se a elaboração do projeto global.

  12. H Reactor

    Data.gov (United States)

    Federal Laboratory Consortium — The H Reactor was the first reactor to be built at Hanford after World War II.It became operational in October of 1949, and represented the fourth nuclear reactor on...

  13. Visual interface for the automation of the instrumented pendulum of Charpy tests used in the surveillance program of reactors vessel of nuclear power plants; Interfase visual para la automatizacion del pendulo instrumentado de pruebas Charpy utilizado en el programa de vigilancia de la vasija de reactores de centrales nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Rojas S, A.S.; Sainz M, E.; Ruiz E, J.A. [ININ, Carretera Mexico-Toluca Km.36.5, Mpio. de Ocoyoacac, Estado de Mexico (Mexico)]. E-mail: asrs@nuclear.inin.mx; esm@nuclear.inin.mx; jare@nuclear.inin.mx

    2004-07-01

    Inside the Programs of Surveillance of the nuclear power stations periodic information is required on the state that keep the materials with those that builds the vessel of the reactor. This information is obtained through some samples or test tubes that are introduced inside the core of the reactor and it is observed if its physical characteristics remain after having been subjected to the radiation changes and temperature. The rehearsal with the instrumented Charpy pendulum offers information on the behavior of fracture dynamics of a material. In the National Institute of Nuclear Research (ININ) it has an instrumented Charpy pendulum. The operation of this instrument is manual, having inconveniences to carry out rehearsals with radioactive material, handling of high and low temperatures, to fulfill the normative ones for the realization of the rehearsals, etc. In this work the development of a computational program is presented (virtual instrument), for the automation of the instrumented pendulum. The system has modules like: Card of data acquisition, signal processing, positioning system, tempered system, pneumatic system, compute programs like it is the visual interface for the operation of the instrumented Charpy pendulum and the acquisition of impact signals. This system shows that given the characteristics of the nuclear industry with radioactive environments, the virtual instrumentation and the automation of processes can contribute to diminish the risks to the personnel occupationally exposed. (Author)

  14. Reactor Physics

    Energy Technology Data Exchange (ETDEWEB)

    Ait Abderrahim, A

    2001-04-01

    The Reactor Physics and MYRRHA Department of SCK-CEN offers expertise in various areas of reactor physics, in particular in neutronics calculations, reactor dosimetry, reactor operation, reactor safety and control and non-destructive analysis of reactor fuel. This expertise is applied in the Department's own research projects in the VENUS critical facility, in the BR1 reactor and in the MYRRHA project (this project aims at designing a prototype Accelerator Driven System). Available expertise is also used in programmes external to the Department such as the reactor pressure steel vessel programme, the BR2 reactor dosimetry, and the preparation and interpretation of irradiation experiments by means of neutron and gamma calculations. The activities of the Fuzzy Logic and Intelligent Technologies in Nuclear Science programme cover several domains outside the department. Progress and achievements in these topical areas in 2000 are summarised.

  15. Reactor safeguards

    CERN Document Server

    Russell, Charles R

    1962-01-01

    Reactor Safeguards provides information for all who are interested in the subject of reactor safeguards. Much of the material is descriptive although some sections are written for the engineer or physicist directly concerned with hazards analysis or site selection problems. The book opens with an introductory chapter on radiation hazards, the construction of nuclear reactors, safety issues, and the operation of nuclear reactors. This is followed by separate chapters that discuss radioactive materials, reactor kinetics, control and safety systems, containment, safety features for water reactor

  16. Reactor operation

    CERN Document Server

    Shaw, J

    2013-01-01

    Reactor Operation covers the theoretical aspects and design information of nuclear reactors. This book is composed of nine chapters that also consider their control, calibration, and experimentation.The opening chapters present the general problems of reactor operation and the principles of reactor control and operation. The succeeding chapters deal with the instrumentation, start-up, pre-commissioning, and physical experiments of nuclear reactors. The remaining chapters are devoted to the control rod calibrations and temperature coefficient measurements in the reactor. These chapters also exp

  17. Reactor Neutrinos

    OpenAIRE

    Soo-Bong Kim; Thierry Lasserre; Yifang Wang

    2013-01-01

    We review the status and the results of reactor neutrino experiments. Short-baseline experiments have provided the measurement of the reactor neutrino spectrum, and their interest has been recently revived by the discovery of the reactor antineutrino anomaly, a discrepancy between the reactor neutrino flux state of the art prediction and the measurements at baselines shorter than one kilometer. Middle and long-baseline oscillation experiments at Daya Bay, Double Chooz, and RENO provided very ...

  18. BOILING REACTORS

    Science.gov (United States)

    Untermyer, S.

    1962-04-10

    A boiling reactor having a reactivity which is reduced by an increase in the volume of vaporized coolant therein is described. In this system unvaporized liquid coolant is extracted from the reactor, heat is extracted therefrom, and it is returned to the reactor as sub-cooled liquid coolant. This reduces a portion of the coolant which includes vaporized coolant within the core assembly thereby enhancing the power output of the assembly and rendering the reactor substantially self-regulating. (AEC)

  19. Post-processor for simulations of the ORIGEN program and calculation of the composition of the activity of a burnt fuel core by a BWR type reactor; Post-procesador para simulaciones del programa ORIGEN y calculo de la composicion de la actividad de un nucleo de combustible quemado por un reactor tipo BWR

    Energy Technology Data Exchange (ETDEWEB)

    Sandoval V, S. [IIE, Av. Reforma 113, Col. Palmira, 62490 Cuernavaca, Morelos (Mexico)]. e-mail: sandoval@iie.org.mx

    2006-07-01

    The composition calculation and the activity of nuclear materials subject to processes of burnt, irradiation and decay periods are of utility for diverse activities inside the nuclear industry, as they are it: the processes design and operations that manage radioactive material, the calculation of the inventory and activity of a core of burnt nuclear fuel, for studies of type Probabilistic Safety Analysis (APS), as well as for regulation processes and licensing of nuclear facilities. ORIGEN is a program for computer that calculates the composition and the activity of nuclear materials subject to periods of burnt, irradiation and decay. ORIGEN generates a great quantity of information whose processing and analysis are laborious, and it requires thoroughness to avoid errors. The automation of the extraction, conditioning and classification of that information is of great utility for the analyst. By means of the use of the post-processor presented in this work it is facilitated, it speeds up and wide the capacity of analysis of results, since diverse consultations with several classification options and filtrate of results can be made. As illustration of the utility of the post-processor, and as an analysis of interest for itself, it is also presented in this work the composition of the activity of a burned core in a BWR type reactor according to the following classification criteria: by type of radioisotope (fission products, activation products and actinides), by specie type (gassy, volatile, semi-volatile and not volatile), by element and by chemical group. The results show that the total activity of the studied core is dominated by the fission products and for the actinides, in proportion four to one, and that the gassy and volatile species conform a fifth part of the total activity of the core. (Author)

  20. Membrane reactor. Membrane reactor

    Energy Technology Data Exchange (ETDEWEB)

    Shindo, Y.; Wakabayashi, K. (National Chemical Laboratory for Industry, Tsukuba (Japan))

    1990-08-05

    Many reaction examples were introduced of membrane reactor, to be on the point of forming a new region in the field of chemical technology. It is a reactor to exhibit excellent function, by its being installed with membrane therein, and is generally classified into catalyst function type and reaction promotion type. What firstly belongs to the former is stabilized zirconia, where oxygen, supplied to the cathodic side of membrane with voltage, impressed thereon, becomes O {sup 2 {minus}} to be diffused through the membrane and supplied, as variously activated oxygenous species, on the anodic side. Examples with many advantages can be given such as methane coupling, propylene oxidation, methanating reaction of carbon dioxide, etc. Apart, palladium film and naphion film also belong to the former. While examples of the latter comprise, among others, decomposition of hydrogen sulfide by porous glass film and dehydrogenation of cyclohexane or palladium alloy film, which are expected to be developed and materialized in the industry. 33 refs., 8 figs.

  1. Programa Cultura desde la memoria

    Directory of Open Access Journals (Sweden)

    Jorge A. González

    2007-01-01

    Full Text Available Los textos que cierran nuestro número especial de aniversario rescatan distintas reflexiones sobre el origen, el desarrollo, la plenitud y la actualidad del Programa Cultura. Jesús Galindo habla desde una perspectiva generacional sobre sus percepciones sobre el desarrollo del grupo de investigación, su vínculo con su propio trabajo profesional y su movimiento en diversos escenarios geográficos del país. Jorge A. González habla sobre su experiencia de trabajo en la revista, así como algunas dificultades por las que ha pasado la producción de la publicación, destacando el lugar que ocupa la revista dentro del campo de la Ciencias sociales en México y fuera de México. Finalmente, Angélica Rocha, corazón imprescindible del Programa Cultura, relata su visión afectiva desde sus labores logísticas.

  2. Multifunctional reactors

    NARCIS (Netherlands)

    Westerterp, K.R.

    1992-01-01

    Multifunctional reactors are single pieces of equipment in which, besides the reaction, other functions are carried out simultaneously. The other functions can be a heat, mass or momentum transfer operation and even another reaction. Multifunctional reactors are not new, but they have received much

  3. Reactor vessel

    OpenAIRE

    Makkee, M.; Kapteijn, F.; Moulijn, J.A

    1999-01-01

    A reactor vessel (1) comprises a reactor body (2) through which channels (3) are provided whose surface comprises longitudinal inwardly directed parts (4) and is provided with a catalyst (6), as well as buffer bodies (8, 12) connected to the channels (3) on both sides of the reactor body (2) and comprising connections for supplying (9, 10, 11) and discharging (13, 14, 15) via the channels (3) gases and/or liquids entering into a reaction with each other and substances formed upon this reactio...

  4. Chemical Reactors.

    Science.gov (United States)

    Kenney, C. N.

    1980-01-01

    Describes a course, including content, reading list, and presentation on chemical reactors at Cambridge University, England. A brief comparison of chemical engineering education between the United States and England is also given. (JN)

  5. Reactor Neutrinos

    Directory of Open Access Journals (Sweden)

    Soo-Bong Kim

    2013-01-01

    Full Text Available We review the status and the results of reactor neutrino experiments. Short-baseline experiments have provided the measurement of the reactor neutrino spectrum, and their interest has been recently revived by the discovery of the reactor antineutrino anomaly, a discrepancy between the reactor neutrino flux state of the art prediction and the measurements at baselines shorter than one kilometer. Middle and long-baseline oscillation experiments at Daya Bay, Double Chooz, and RENO provided very recently the most precise determination of the neutrino mixing angle θ13. This paper provides an overview of the upcoming experiments and of the projects under development, including the determination of the neutrino mass hierarchy and the possible use of neutrinos for society, for nonproliferation of nuclear materials, and geophysics.

  6. NUCLEAR REACTOR

    Science.gov (United States)

    Miller, H.I.; Smith, R.C.

    1958-01-21

    This patent relates to nuclear reactors of the type which use a liquid fuel, such as a solution of uranyl sulfate in ordinary water which acts as the moderator. The reactor is comprised of a spherical vessel having a diameter of about 12 inches substantially surrounded by a reflector of beryllium oxide. Conventionnl control rods and safety rods are operated in slots in the reflector outside the vessel to control the operation of the reactor. An additional means for increasing the safety factor of the reactor by raising the ratio of delayed neutrons to prompt neutrons, is provided and consists of a soluble sulfate salt of beryllium dissolved in the liquid fuel in the proper proportion to obtain the result desired.

  7. Reactor Engineering

    Science.gov (United States)

    Lema, Juan M.; López, Carmen; Eibes, Gemma; Taboada-Puig, Roberto; Moreira, M. Teresa; Feijoo, Gumersindo

    In this chapter, the engineering aspects of processes catalyzed by peroxidases will be presented. In particular, a discussion of the existing technologies that utilize peroxidases for different purposes, such as the removal of recalcitrant compounds or the synthesis of polymers, is analyzed. In the first section, the essential variables controlling the process will be investigated, not only those that are common in any enzymatic system but also those specific to peroxidative reactions. Next, different reactor configurations and operational modes will be proposed, emphasizing their suitability and unsuitability for different systems. Finally, two specific reactors will be described in detail: enzymatic membrane reactors and biphasic reactors. These configurations are especially valuable for the treatment of xenobiotics with high and poor water solubility, respectively.

  8. Reactor Neutrinos

    OpenAIRE

    Lasserre, T.; Sobel, H.W.

    2005-01-01

    We review the status and the results of reactor neutrino experiments, that toe the cutting edge of neutrino research. Short baseline experiments have provided the measurement of the reactor neutrino spectrum, and are still searching for important phenomena such as the neutrino magnetic moment. They could open the door to the measurement of coherent neutrino scattering in a near future. Middle and long baseline oscillation experiments at Chooz and KamLAND have played a relevant role in neutrin...

  9. Infactibilidad en programas con restricciones lineales

    Directory of Open Access Journals (Sweden)

    Liern Carrión, V.

    1999-01-01

    Full Text Available En este trabajo resumimos las técnicas más habituales que permiten diagnosticar las causas de infactibilidad de programas con restricciones lineales. Además, presentamos dos métodos que, con las mínimas transformaciones posibles del modelo inicial, permiten hacer viable un programa infactible. Los métodos descritos son aplicados a un modelo de selección de carteras eficientes.

  10. Bioconversion reactor

    Science.gov (United States)

    McCarty, Perry L.; Bachmann, Andre

    1992-01-01

    A bioconversion reactor for the anaerobic fermentation of organic material. The bioconversion reactor comprises a shell enclosing a predetermined volume, an inlet port through which a liquid stream containing organic materials enters the shell, and an outlet port through which the stream exits the shell. A series of vertical and spaced-apart baffles are positioned within the shell to force the stream to flow under and over them as it passes from the inlet to the outlet port. The baffles present a barrier to the microorganisms within the shell causing them to rise and fall within the reactor but to move horizontally at a very slow rate. Treatment detention times of one day or less are possible.

  11. Sonochemical Reactors.

    Science.gov (United States)

    Gogate, Parag R; Patil, Pankaj N

    2016-10-01

    Sonochemical reactors are based on the generation of cavitational events using ultrasound and offer immense potential for the intensification of physical and chemical processing applications. The present work presents a critical analysis of the underlying mechanisms for intensification, available reactor configurations and overview of the different applications exploited successfully, though mostly at laboratory scales. Guidelines have also been presented for optimum selection of the important operating parameters (frequency and intensity of irradiation, temperature and liquid physicochemical properties) as well as the geometric parameters (type of reactor configuration and the number/position of the transducers) so as to maximize the process intensification benefits. The key areas for future work so as to transform the successful technique at laboratory/pilot scale into commercial technology have also been discussed. Overall, it has been established that there is immense potential for sonochemical reactors for process intensification leading to greener processing and economic benefits. Combined efforts from a wide range of disciplines such as material science, physics, chemistry and chemical engineers are required to harness the benefits at commercial scale operation.

  12. Conceptos claves en un programa educativo

    OpenAIRE

    MYRIAM PATRICIA PARDO TORRES; KAREN TATIANA SANTACRUZ PARDO; YURI PATRICIA RAMOS ANACONA; CATHERINE ARANGO MARTÍNEZ

    2010-01-01

    Se presentan los resultados de la revisión de literatura sobre los conceptos comunicación asertiva, afecto y las visiones de enfermería de reciprocidad y simultaneidad como sustento base de un programa educativo de intervención con adolescentes para promover la responsabilidad procreativa. La revisión bibliográfica sistemática tomó como bases de datos Ebsco-Host y Scielo. Conclusiones: la comunicación asertiva es una habilidad social aprendida, que es necesario fortalecer en los programas de ...

  13. Automation of the computational programs and codes used in the methodology of neutronic and thermohydraulic calculation for the IEA-R1 nuclear reactor; Automatizacao dos programas e codigos computacionais utilizados na metodologia de calculo neutronico e termohidraulico do reator nuclear IEA-R1

    Energy Technology Data Exchange (ETDEWEB)

    Stefani, Giovanni Laranjo de, E-mail: gstefani@ipen.b [Universidade de Sao Paulo (USP), SP (Brazil). Inst. de Fisica; Conti, Thadeu das Neves, E-mail: tnconti@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2009-07-01

    This work proceeds the elaboration of a computational program for execution of various neutron and thermalhydraulic calculation methodology programs of the IEA-R1-Sao Paulo, Brazil, making the process more practical and safe, besides transforming de output data of each program an automatic process. This reactor is largely used for production of radioisotopes for medical use, material irradiation, personnel training and also for basic research. For that purposes it is necessary to change his core configuration in order to adapt the reactor for different uses. The work will transform various existent programs into subroutines of a principal program, i.e.,a program which call each of the programs automatically when necessary, and create another programs for manipulation the output data and therefore making practical the process

  14. Programação

    Directory of Open Access Journals (Sweden)

    Revista Brasileira de Medicina de Família e Comunidade RBMFC

    2012-06-01

    Full Text Available 22 de junho de 2012:   9:00 às 9:20- Abertura e apresentação do simpósio- Prof. Dr. Luiz Eugênio A. M. Mello e Profa. Lia Diskin   Práticas Integrativas e Complementares implementadas na área da saúde. Mediadora Profa. Dra. Luiza  Hiromi Tanaka 9:20 às 9:55 - Medicinas alternativas e holísticas e a política nacional de Práticas Integrativas e Complementares de saúde  - desafios da atualidade – Dra. Adriana de Freitas Velloso 9:55 às 10:30- Um dos maiores programas de práticas integrativas e complementares da América Latina: São Paulo - Dr. Mário Cabral 10:30 às 10:50- intervalo 10:50 às 11:50- Yoga and changing the way we think - Dra. Shirley Teles 11:50 às 12:20- Mesa redonda com os palestrantes 12:20 às 13:20- Almoço   Pesquisas em Medicinas Tradicionais. Mediadora Eliana Rodrigues 13:20 às 14:10 – Sessão de pôsteres I 14:10 às 14:45 - Pesquisas em Medicina Tradicional Chinesa - Profa. Dra. Angela Tabosa 14:45 às 15:35 - Pesquisas em Ayurveda – Profa. Dra. Shirley Telles -internacional 15:35 às 15:55- Intervalo 15:55 às 16:25 – Um estudo sobre as plantas com efeitos no cérebro presentes nas fórmulas da Medicina Tradicional Tibetana – Profa. Raquel Luna 16:25 às 16:55- Mesa redonda com os palestrantes     23 de junho de 2012:   Contribuição das Práticas Contemplativas para a sociedade. Mediadora Profa. Dra. Elisa Kozasa   9:00 às 9:30 - Yoga na Fundação Casa - Prof. Dr. Cesar Deveza 9:30 às 10:00 - Práticas contemplativas nas escolas públicas - Profa. Vivi Tupy 10:00 às 10:30 - Efeitos da prática de Yoga em um grupo de militares - Prof. Dr. Kliger Kissinger Fernandes Rocha 10:30 às 10:50 - Intervalo 10:50 às 11:10 - Combinação do toque e atividades lúdicas aumenta o bem-estar e fortalece o vínculo entre avós e netos- Dra. Cláudia Pelegrino 11:10 às 11:40 - Yoga para crianças - Profa. Maria Ester Massola 11:40 às 12:10 - Mesa redonda com os palestrantes 12:10 às 13

  15. Hybrid adsorptive membrane reactor

    Science.gov (United States)

    Tsotsis, Theodore T. (Inventor); Sahimi, Muhammad (Inventor); Fayyaz-Najafi, Babak (Inventor); Harale, Aadesh (Inventor); Park, Byoung-Gi (Inventor); Liu, Paul K. T. (Inventor)

    2011-01-01

    A hybrid adsorbent-membrane reactor in which the chemical reaction, membrane separation, and product adsorption are coupled. Also disclosed are a dual-reactor apparatus and a process using the reactor or the apparatus.

  16. D and DR Reactors

    Data.gov (United States)

    Federal Laboratory Consortium — The world's second full-scale nuclear reactor was the D Reactor at Hanford which was built in the early 1940's and went operational in December of 1944.D Reactor ran...

  17. Hybrid adsorptive membrane reactor

    Science.gov (United States)

    Tsotsis, Theodore T.; Sahimi, Muhammad; Fayyaz-Najafi, Babak; Harale, Aadesh; Park, Byoung-Gi; Liu, Paul K. T.

    2011-03-01

    A hybrid adsorbent-membrane reactor in which the chemical reaction, membrane separation, and product adsorption are coupled. Also disclosed are a dual-reactor apparatus and a process using the reactor or the apparatus.

  18. Programas tutoriais para os cursos de enfermagem

    Directory of Open Access Journals (Sweden)

    Rosita Saupe

    Full Text Available A implementação dos Projetos Político-Pedagógicos, impulsionada pelas políticas de educação e saúde, gerou a necessidade de incorporar à matriz curricular vários programas para atender aos interesses e necessidades emanados dos cursos de graduação. Um deles é o Programa Tutorial, destinado a amparar o aluno como sujeito da educação e do cuidado. Nessa perspectiva, este estudo objetiva contribuir com a proposição e avaliação de um modelo tutorial, que possa preencher as lacunas detectadas no processo de construção dos Projetos Político-Pedagógicos. Para tanto, o artigo descreve o modelo teórico idealizado, com vistas a sua inclusão nos cursos de graduação.

  19. Programas tutoriais para os cursos de enfermagem

    Directory of Open Access Journals (Sweden)

    Saupe Rosita

    2002-01-01

    Full Text Available A implementação dos Projetos Político-Pedagógicos, impulsionada pelas políticas de educação e saúde, gerou a necessidade de incorporar à matriz curricular vários programas para atender aos interesses e necessidades emanados dos cursos de graduação. Um deles é o Programa Tutorial, destinado a amparar o aluno como sujeito da educação e do cuidado. Nessa perspectiva, este estudo objetiva contribuir com a proposição e avaliação de um modelo tutorial, que possa preencher as lacunas detectadas no processo de construção dos Projetos Político-Pedagógicos. Para tanto, o artigo descreve o modelo teórico idealizado, com vistas a sua inclusão nos cursos de graduação.

  20. Conceptos claves en un programa educativo

    Directory of Open Access Journals (Sweden)

    MYRIAM PATRICIA PARDO TORRES

    2010-10-01

    Full Text Available Se presentan los resultados de la revisión de literatura sobre los conceptos comunicación asertiva, afecto y las visiones de enfermería de reciprocidad y simultaneidad como sustento base de un programa educativo de intervención con adolescentes para promover la responsabilidad procreativa. La revisión bibliográfica sistemática tomó como bases de datos Ebsco-Host y Scielo. Conclusiones: la comunicación asertiva es una habilidad social aprendida, que es necesario fortalecer en los programas de salud sexual y reproductiva; el afecto es un elemento motivador para la transmisión y apropiación de conocimientos en educación sexual y reproductiva; la visión de reciprocidad orienta la interacción entre el (la adolescente y la (el enfermera (o componente necesario para una construcción mutua del autocuidado en este ámbito, y la visión de simultaneidad integra el contexto como elemento fundamental en el abordaje de la temática dentro de un programa educativo.

  1. O estilo visual de programas televisivos

    Directory of Open Access Journals (Sweden)

    Dimas Alexandre SOLDI

    2009-07-01

    Full Text Available A expressão cinética, ou imagem em movimento, quando homologada com a noção de sincretismo de linguagens torna ainda mais complexa a investigação de objetos audiovisuais. A partir dos estudos da semiótica francesa que têm em L. Hjelmslev (2003,1. M. Floch (1985 e 1. Fontanille (2005 alguns dos princípios teóricos que mais se ajustam ao estudo de sistemas audiovisuais, neste trabalho trataremos de examinar a composição do estilo visual de dois programas televisivos: Casos de família, do SBT, e Programa Silvia Poppovic, da TV Cultura. Adotando princípios metodológicos utilizados por Fontanille (2005, realizaremos uma leitura da relação existente entre cores, luzes e cenários dos dois programas a fim de identificar elementos capazes de estabelecer diferentes atos de enunciação, contribuindo para o envolvimento do enunciatário.

  2. O estilo visual de programas televisivos

    Directory of Open Access Journals (Sweden)

    Dimas Alexandre SOLDI

    2013-11-01

    Full Text Available A expressão cinética, ou imagem em movimento, quando homologada com a noção de sincretismo de linguagens torna ainda mais complexa a investigação de objetos audiovisuais. A partir dos estudos da semiótica francesa que têm em L. Hjelmslev (2003,1. M. Floch (1985 e 1. Fontanille (2005 alguns dos princípios teóricos que mais se ajustam ao estudo de sistemas audiovisuais, neste trabalho trataremos de examinar a composição do estilo visual de dois programas televisivos: Casos de família, do SBT, e Programa Silvia Poppovic, da TV Cultura. Adotando princípios metodológicos utilizados por Fontanille (2005, realizaremos uma leitura da relação existente entre cores, luzes e cenários dos dois programas a fim de identificar elementos capazes de estabelecer diferentes atos de enunciação, contribuindo para o envolvimento do enunciatário.

  3. Nuclear reactor neutron shielding

    Energy Technology Data Exchange (ETDEWEB)

    Speaker, Daniel P; Neeley, Gary W; Inman, James B

    2017-09-12

    A nuclear reactor includes a reactor pressure vessel and a nuclear reactor core comprising fissile material disposed in a lower portion of the reactor pressure vessel. The lower portion of the reactor pressure vessel is disposed in a reactor cavity. An annular neutron stop is located at an elevation above the uppermost elevation of the nuclear reactor core. The annular neutron stop comprises neutron absorbing material filling an annular gap between the reactor pressure vessel and the wall of the reactor cavity. The annular neutron stop may comprise an outer neutron stop ring attached to the wall of the reactor cavity, and an inner neutron stop ring attached to the reactor pressure vessel. An excore instrument guide tube penetrates through the annular neutron stop, and a neutron plug comprising neutron absorbing material is disposed in the tube at the penetration through the neutron stop.

  4. Reactor and method of operation

    Science.gov (United States)

    Wheeler, John A.

    1976-08-10

    A nuclear reactor having a flattened reactor activity curve across the reactor includes fuel extending over a lesser portion of the fuel channels in the central portion of the reactor than in the remainder of the reactor.

  5. Satisfacción de programas sociales. El caso del programa de abasto de leche Liconsa

    Directory of Open Access Journals (Sweden)

    Adolfo Cogco

    2013-12-01

    Full Text Available El programa Abasto Social de Leche, que otorga esta bebida de manera subsidiada a personas enestado de pobreza, es uno de los más antiguos en México. El producto ha pasado por diversosmejoramientos de corte nutricional y de imagen; en este el artículo se presentarán los hallazgos sobrela satisfacción que tienen los beneficiarios del programa, a través del uso de una metodologíaintegral que abarca la gestión del mismo, la perspectiva de los beneficiarios en diversos ámbitosy el aspecto comunitario. Los resultados, obtenidos por medio de un modelo de ecuaciones estructuralescon variables latentes, señalan que la población objetivo se encuentra satisfecha con el programa.

  6. Programas intergeneracionales en el marco de los Programas Universitarios de Mayores

    OpenAIRE

    García de la Torre, María del Pilar

    2011-01-01

    El camino hacia la sociedad para todas las edades, que la ONU marcó como objetivo ya en 1995, hace de los programas intergeneracionales objeto de gran expansión en los últimos años, derribando las barreras entre generaciones. Entendiendo los programas intergeneracionales como una nueva metodología de acción social y educativa que une participantes de varias generaciones hacia un objetivo común a todos ellos, mediante los que se promueve el intercambio, la solidaridad y la interdependencia ent...

  7. Programa de reeducación Abdomino-Genito-Urinaria

    OpenAIRE

    Barrientos Gallego, María José

    2014-01-01

    En este Trabajo Fin de Grado en Fisioterapia se pretende plasmar el desarrollo y la puesta en práctica de un Programa de Reeducación Abdómino-Génito-Urinario en una clínica de Fisioterapia. Este programa ha sido diseñado para compaginar el trabajo individualizado llevado a cabo en consulta junto con el que se realizará en sala en grupo. El programa incluye 4 sesiones de fisioterapia uroginecológica y 8 clases de ejercicios en grupo. El objetivo de este programa es conseguir los mejores ...

  8. El Programa Nacional de Formacion y Capacitacion Permanente

    National Research Council Canada - National Science Library

    Rodriguez Manrique, Catherine Paola

    2010-01-01

    Este articulo presenta una sistematizacion de las caracteristicas mas relevantes del Programa Nacional de Formacion y Capacitacion Permanente implementado por el Ministerio de Educacion del Peru desde...

  9. Programa provincial de lectura del Chubut

    Directory of Open Access Journals (Sweden)

    Natalia Alejandra Alaniz

    2014-10-01

    Full Text Available En el marco del proyecto “Dispositivos pedagógicos en las dinámicas de lavida escolar en contexto de pobreza urbana” lo que se propuso investigar es la forma de implementación del Programa de Lectura de la provincia de Chubut. El mismo fue creado por Resolución Ministerial N° 1044/ 08, a partir de diversos trabajos que comenzaron en el año 2003 a través de la Ley de Educación 26. 026, y que posteriormente se incorporaron a nivel provincial mediante la Resolución N ° 174/12 para revalorizar las trayectorias escolares de cada niño/a. El programa consiste en poner el énfasis en el vínculo pedagógico mediante la adecuación de los espacios curriculares, de tal modo que se pueda lograr una articulación entre los diferentes niveles educativos, desde el nivel inicial al secundario. Articulando para ello recursos materiales y humanos que posibiliten el acompañamiento del proceso de enseñanza y aprendizaje de lectura.A partir de esto, el objetivo de este trabajo fue indagar cómo perciben los docentes de una escuela pública la implementación del Programa Provincial de Lectura, lo que implico utilizar metodologías y técnicas de investigación apropiadas para obtener las experiencias actuales en el territorio y en la cotidianidad de los propios actores escolares. Teniendo en consideración que el dispositivo pedagógico es una construcción histórica, que produce subjetividades, y por consiguiente formas de ver y entender el mundo.

  10. Gerenciamento de Riscos em Programas de Aventura

    Directory of Open Access Journals (Sweden)

    Victor López-Richard

    2013-02-01

    Full Text Available o gerenciamento de riscos em programas de aventura será analisado de maneira sistemática neste trabalho. Os elementos que conformam os padrões de precaução em atividades comerciais de aventura serão tratados de forma crítica. V árias questões relacionadas à polêmica do credenciamento e certificação de programas comerciais de aventura serão analisadas. Os principais conceitos relativos à segurança na concepção, no planejamento, no monitoramento e na execução de programas turísticos de aventura e eventos na natureza serão abordados. Após a revisão conceitual, será exposto o resultado do estudo dos elementos de gerenciamento de riscos, introduzidos na legislação que rege a implementação da política de desenvolvimento do turismo sustentável no Município de Brotas. Risk management in adventure programs has been systematically analyzed within this work. The elements that integrate the standards of care in commercial adventure programming have been critically approached. Different questions related to the debate on accreditation and certification of adventure programs. The main concepts regarding safety during the conception, planning, monitoring, and execution of adventure tourism programs and events in the wild have been also approached. Following this conceptual revision, the result of the study of risk management topics introduced in the legislation related to the policy of sustainable tourism development in Brotas borough will be displayed.

  11. Conceitos chave em um programa educativo

    OpenAIRE

    Pardo Torres, Myriam Patricia; Santacruz Pardo, Karen Tatiana; RAMOS ANACONA, YURI PATRICIA; Arango Martínez, Catherine

    2011-01-01

    Se presentan los resultados de la revisión de literatura sobre los conceptos comunicación asertiva, afecto y las visiones de enfermería de reciprocidad y simultaneidad como sustento base de un programa educativo de intervención con adolescentes para promover la responsabilidad procreativa. La revisión bibliográfica sistemática tomó como bases de datos Ebsco-Host y Scielo. Conclusiones: la comunicación asertiva es una habilidad social aprendida, que es necesario fortalecer en los p...

  12. Programa de habilidades Sociales con Personas Mayores

    OpenAIRE

    2013-01-01

    Este proyecto refleja la necesidad del entrenamiento en habilidades sociales teniendo como destinatarios a un colectivo de personas mayores, con el que se realizará una propuesta práctica del proceso psicopedagógico tras una fase previa de evaluación y diagnóstico de las necesidades del colectivo; durante la fase del programa de intervención propiamente dicho, se llevarán a cabo sesiones que ayudarán a mejorar la autoestima, el control de la ira, la comunicación para establecer unas óptimas r...

  13. Programa de habilidades Sociales con Personas Mayores

    OpenAIRE

    López García, Judith

    2013-01-01

    Este proyecto refleja la necesidad del entrenamiento en habilidades sociales teniendo como destinatarios a un colectivo de personas mayores, con el que se realizará una propuesta práctica del proceso psicopedagógico tras una fase previa de evaluación y diagnóstico de las necesidades del colectivo; durante la fase del programa de intervención propiamente dicho, se llevarán a cabo sesiones que ayudarán a mejorar la autoestima, el control de la ira, la comunicación para establecer unas óptimas r...

  14. Intervención familiar: programa EDUCA

    OpenAIRE

    Díaz-Sibajas, Miguel Ángel

    2014-01-01

    El objetivo principal de este taller será el de presentar un programa de escuela de padres protocolizado en grupo para la prevención primaria y secundaria de los trastornos del comportamiento perturbador (el trastorno negativista desafiante y el trastorno disocial) en la infancia y la adolescencia. Se describirán las principales estrategias y dinámicas de intervención con el objetivo de que el taller sea eminentemente práctico, incidiendo en no sólo “ qué hacer", sino en "cómo podemos hace...

  15. Programas de cuidado de enfermagem domiciliar

    Directory of Open Access Journals (Sweden)

    Adriana Aoarecida Paz

    2003-10-01

    Full Text Available O cuidado domiciliar é umaestratégia assistencial que enfatiza a autonomia do paciente, bem como o autocuidado no espaço domiciliar. A estratégia envolve planejamento, coordenação e atuação de vários serviços. Este estudo é do tipo descritivo, contemplando uma abordagem qualitativa por meio de uma revisão bibliográfica. Os dados foram analisados pela técnica de Análise de Conteúdo, sendo identificado duas categorias: programas de cuidado domiciliar e a sistematização do cuidado. O cuidado domiciliar reduz o número de complicações clínicas, rehospitalização e custos hospitalares. Ao se delinear um programa de cuidado domiciliar, os objetivos devem ser estabelecidos com a finalidade de concretizar as mudanças desejadas. O profissional de enfermagem ao sistematizar deve estabelecer vínculo e parceria com o paciente e a família.

  16. Programa "DRL" para controle experimental de pesquisa em julgamento temporal

    OpenAIRE

    Costa,Valéria Catelli Infantozzi da; Paula,Eldereis de; Xavier, Gilberto Fernando; Bueno,José Lino Oliveira

    2007-01-01

    Um programa de computador, o "DRL", foi desenvolvido para controle e coleta de dados em experimentos envolvendo processos temporais associados à atenção e memória. Apresenta-se um breve relato do programa, como configurá-lo para diferentes tipos de experimentos e como acessar os resultados gravados em arquivos.

  17. Reactor Physics Programme

    Energy Technology Data Exchange (ETDEWEB)

    De Raedt, C

    2000-07-01

    The Reactor Physics and Department of SCK-CEN offers expertise in various areas of reactor physics, in particular in neutronics calculations, reactor dosimetry, reactor operation, reactor safety and control and non-destructive analysis on reactor fuel. This expertise is applied within the Reactor Physics and MYRRHA Research Department's own research projects in the VENUS critical facility, in the BR1 reactor and in the MYRRHA project (this project aims at designing a prototype Accelerator Driven System). Available expertise is also used in programmes external to the Department such as the reactor pressure steel vessel programme, the BR2 reactor dosimetry, and the preparation and interpretation of irradiation experiments. Progress and achievements in 1999 in the following areas are reported on: (1) investigations on the use of military plutonium in commercial power reactors; (2) neutron and gamma calculations performed for BR-2 and for other reactors; (3) the updating of neutron and gamma cross-section libraries; (4) the implementation of reactor codes; (6) the management of the UNIX workstations; and (6) fuel cycle studies.

  18. Attrition reactor system

    Science.gov (United States)

    Scott, Charles D.; Davison, Brian H.

    1993-01-01

    A reactor vessel for reacting a solid particulate with a liquid reactant has a centrifugal pump in circulatory flow communication with the reactor vessel for providing particulate attrition, resulting in additional fresh surface where the reaction can occur.

  19. LMFBR type reactor

    Energy Technology Data Exchange (ETDEWEB)

    Kawakami, Hiroto

    1995-02-07

    A reactor container of the present invention has a structure that the reactor container is entirely at the same temperature as that at the inlet of the reactor and, a hot pool is incorporated therein, and the reactor container has is entirely at the same temperature and has substantially uniform temperature follow-up property transiently. Namely, if the temperature at the inlet of the reactor core changes, the temperature of the entire reactor container changes following this change, but no great temperature gradient is caused in the axial direction and no great heat stresses due to axial temperature distribution is caused. Occurrence of thermal stresses caused by the axial temperature distribution can be suppressed to improve the reliability of the reactor container. In addition, since the laying of the reactor inlet pipelines over the inside of the reactor is eliminated, the reactor container is made compact and the heat shielding structures above the reactor and a protection structure of container walls are simplified. Further, secondary coolants are filled to the outside of the reactor container to simplify the shieldings. The combined effects described above can improve economical property and reliability. (N.H.).

  20. Impacto del programa crecer en la adolescencia

    Directory of Open Access Journals (Sweden)

    María del Rosario Lanza Águila

    1999-02-01

    Full Text Available Se realizó un estudio explorativo descriptivo en el que se analizaron grupos de adolescentes (n=200 obtenidos por método aleatorio a los cuales se aplicó encuesta para la obtención de datos de interés relacionados con la sexualidad. Tras la aplicación a uno de los grupos el Programa Crecer en la Adolescencia predominó en la serie el grupo de 14-15 años, sexo masculino, escolaridad vencida primaria, estado conyugal soltero. Se detectó que los incluidos en el programa tienen una mayor información sobre el tema con resultados altamente significativos sobre consecuencias del aborto, peligro de tener relaciones sexuales precoces, métodos anticonceptivos existentes y enfermedades de trasmisión sexual (ETS p A randomized descriptive and exploratory study was conducted to analyze groups of adolescents (n=200 who were surveyed to obtain data of interest connected with sexuality. After the application to one of the groups of the Program Growing in Adolescence, it was observed a predominance in the series of the group aged 14-15, male sex, primary educational level, and single individuals. It was shown that those included in the program had more information on the topic, with highly significant results about the consequences of abortion, the danger of having early sexual relations, the existing contraceptive methods and the sexually transmitted diseases (STD p < 0.001. It was also proved that there is a great confidence in the health personnel and that the family physician and the mass media phay a fundamental role in sexual guidance

  1. Light water reactor safety

    CERN Document Server

    Pershagen, B

    2013-01-01

    This book describes the principles and practices of reactor safety as applied to the design, regulation and operation of light water reactors, combining a historical approach with an up-to-date account of the safety, technology and operating experience of both pressurized water reactors and boiling water reactors. The introductory chapters set out the basic facts upon which the safety of light water reactors depend. The central section is devoted to the methods and results of safety analysis. The accidents at Three Mile Island and Chernobyl are reviewed and their implications for light wate

  2. Nuclear reactor physics

    CERN Document Server

    Stacey, Weston M

    2010-01-01

    Nuclear reactor physics is the core discipline of nuclear engineering. Nuclear reactors now account for a significant portion of the electrical power generated worldwide, and new power reactors with improved fuel cycles are being developed. At the same time, the past few decades have seen an ever-increasing number of industrial, medical, military, and research applications for nuclear reactors. The second edition of this successful comprehensive textbook and reference on basic and advanced nuclear reactor physics has been completely updated, revised and enlarged to include the latest developme

  3. Desigualdad en los programas sociales en el Perú

    OpenAIRE

    2007-01-01

    Los programas sociales en el Perú han sido objeto de muchas críticas en cuanto a su focalización, tanto medida como la proporción de la población pobre que se beneficia de los programas, como la proporción del presupuesto que se gasta en esta población. Con el objetivo de conocer el por qué de las críticas es necesario saber cuánto se gasta y a quién benefician los programas sociales. Para ello, se construyeron coeficientes de concentración individuales, interregionales e intrarregionales (ta...

  4. O Problema da Terminação de Programas

    OpenAIRE

    Mateus, Paulo

    2012-01-01

    Neste artigo apresenta-se de forma simples e elementar a indecidi-bilidade do Problema da Terminação de Programas apresentado por Turingem 1936 em resposta ao Entscheidungsproblem de Hilbert. O resultado éapresentado no contexto de programas imperativos modernos em arquitec-tura de von Neumann, em vez de máquinas de Turing, para que o leitorque conhece rudimentos de programação se sinta confortável. Discute-se oimpacto deste problema no desenvolvimento de aplicações computacionais.Termina-se ...

  5. Spinning fluids reactor

    Science.gov (United States)

    Miller, Jan D; Hupka, Jan; Aranowski, Robert

    2012-11-20

    A spinning fluids reactor, includes a reactor body (24) having a circular cross-section and a fluid contactor screen (26) within the reactor body (24). The fluid contactor screen (26) having a plurality of apertures and a circular cross-section concentric with the reactor body (24) for a length thus forming an inner volume (28) bound by the fluid contactor screen (26) and an outer volume (30) bound by the reactor body (24) and the fluid contactor screen (26). A primary inlet (20) can be operatively connected to the reactor body (24) and can be configured to produce flow-through first spinning flow of a first fluid within the inner volume (28). A secondary inlet (22) can similarly be operatively connected to the reactor body (24) and can be configured to produce a second flow of a second fluid within the outer volume (30) which is optionally spinning.

  6. Reactor Vessel Surveillance Program for Advanced Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Jeong, Kyeong-Hoon; Kim, Tae-Wan; Lee, Gyu-Mahn; Kim, Jong-Wook; Park, Keun-Bae; Kim, Keung-Koo

    2008-10-15

    This report provides the design requirements of an integral type reactor vessel surveillance program for an integral type reactor in accordance with the requirements of Korean MEST (Ministry of Education, Science and Technology Development) Notice 2008-18. This report covers the requirements for the design of surveillance capsule assemblies including their test specimens, test block materials, handling tools, and monitors of the surveillance capsule neutron fluence and temperature. In addition, this report provides design requirements for the program for irradiation surveillance of reactor vessel materials, a layout of specimens and monitors in the surveillance capsule, procedures of installation and retrieval of the surveillance capsule assemblies, and the layout of the surveillance capsule assemblies in the reactor.

  7. Programa de apoyo a la competitividad de clusters

    OpenAIRE

    Lina Marcela Ibáñez

    2006-01-01

    Presenta información detallada acerca del Programa de apoyo da la competitividad de cluster, entre las cuales se aprecia: los componentes del proyecto, beneficiarios, fases, metodología y metas alcanzadas.

  8. Gender mainstreaming y agua. El Programa Nacional Hídrico

    Directory of Open Access Journals (Sweden)

    Verónica Vázquez-García

    2011-01-01

    Full Text Available Desde la Conferencia sobre la Mujer realizada en 1995 en Beijing, el gender mainstreaming (GM se ha convertido en la principal herramienta de los gobiernos para promover la equidad de género. El presente artículo revisa los logros del GM en la política ambiental mexicana mediante el análisis de tres programas operados por la Semarnat: el Programa Equidad de Género, Medio Ambiente y Sustentabilidad (2002-2006, el Programa Hacia la Igualdad de Género y la Sustentabilidad Ambiental (2007-2012 y el Programa Nacional Hídrico (2007-2012. A partir de este análisis se hacen propuestas para incorporar la perspectiva de equidad de género en el diseño e implementación de políticas de gestión del agua en el país.

  9. A linguagem de programação Cm

    OpenAIRE

    Alexandre Prado Teles

    1993-01-01

    Resumo: Cm é uma linguagem de programação em evolução. Ela surgiu em 1985, no DCCUnicamp, e vem se desenvolvendo desde então. Atualmente, Cm apresenta características comparáveis com de C++ para programação orientada a objetos e caminha para além disso, incorporando facilidades para programação concorrente e distribuída. Esta tese de mestrado descreve o estágio atual da linguagem de programação Cm e seu compilador, ressaltando as contribuições do autor em ambos. Inicialmente a tese incorporav...

  10. SNTP program reactor design

    Science.gov (United States)

    Walton, Lewis A.; Sapyta, Joseph J.

    1993-06-01

    The Space Nuclear Thermal Propulsion (SNTP) program is evaluating the feasibility of a particle bed reactor for a high-performance nuclear thermal rocket engine. Reactors operating between 500 MW and 2,000 MW will produce engine thrusts ranging from 20,000 pounds to 80,000 pounds. The optimum reactor arrangement depends on the power level desired and the intended application. The key components of the reactor have been developed and are being tested. Flow-to-power matching considerations dominate the thermal-hydraulic design of the reactor. Optimal propellant management during decay heat cooling requires a three-pronged approach. Adequate computational methods exist to perform the neutronics analysis of the reactor core. These methods have been benchmarked to critical experiment data.

  11. Hybrid reactors. [Fuel cycle

    Energy Technology Data Exchange (ETDEWEB)

    Moir, R.W.

    1980-09-09

    The rationale for hybrid fusion-fission reactors is the production of fissile fuel for fission reactors. A new class of reactor, the fission-suppressed hybrid promises unusually good safety features as well as the ability to support 25 light-water reactors of the same nuclear power rating, or even more high-conversion-ratio reactors such as the heavy-water type. One 4000-MW nuclear hybrid can produce 7200 kg of /sup 233/U per year. To obtain good economics, injector efficiency times plasma gain (eta/sub i/Q) should be greater than 2, the wall load should be greater than 1 MW.m/sup -2/, and the hybrid should cost less than 6 times the cost of a light-water reactor. Introduction rates for the fission-suppressed hybrid are usually rapid.

  12. Fast Spectrum Reactors

    CERN Document Server

    Todd, Donald; Tsvetkov, Pavel

    2012-01-01

    Fast Spectrum Reactors presents a detailed overview of world-wide technology contributing to the development of fast spectrum reactors. With a unique focus on the capabilities of fast spectrum reactors to address nuclear waste transmutation issues, in addition to the well-known capabilities of breeding new fuel, this volume describes how fast spectrum reactors contribute to the wide application of nuclear power systems to serve the global nuclear renaissance while minimizing nuclear proliferation concerns. Readers will find an introduction to the sustainable development of nuclear energy and the role of fast reactors, in addition to an economic analysis of nuclear reactors. A section devoted to neutronics offers the current trends in nuclear design, such as performance parameters and the optimization of advanced power systems. The latest findings on fuel management, partitioning and transmutation include the physics, efficiency and strategies of transmutation, homogeneous and heterogeneous recycling, in addit...

  13. LMFBR type reactor

    Energy Technology Data Exchange (ETDEWEB)

    Kanbe, Mitsuru

    1997-04-04

    An LMFBR type reactor comprises a plurality of reactor cores in a reactor container. Namely, a plurality of pot containing vessels are disposed in the reactor vessel and a plurality of reactor cores are formed in a state where an integrated-type fuel assembly is each inserted to a pot, and a coolant pipeline is connected to each of the pot containing-vessel to cool the reactor core respectively. When fuels are exchanged, the integrated-type fuel assembly is taken out together with the pot from the reactor vessel in a state where the integrated-type fuel assembly is immersed in the coolants in the pot as it is. Accordingly, coolants are supplied to each of the pot containing-vessel connected with the coolant pipeline and circulate while cooling the integrated-type fuel assembly for every pot. Then, when the fuels are exchanged, the integrated type fuel assembly is taken out to the outside of the reactor together with the pot by taking up the pot from the pot-containing vessel. Then, neutron economy is improved to thereby improve reactor power and the breeding ratio. (N.H.)

  14. INVAP's Research Reactor Designs

    Directory of Open Access Journals (Sweden)

    Eduardo Villarino

    2011-01-01

    Full Text Available INVAP, an Argentine company founded more than three decades ago, is today recognized as one of the leaders within the research reactor industry. INVAP has participated in several projects covering a wide range of facilities, designed in accordance with the requirements of our different clients. For complying with these requirements, INVAP developed special skills and capabilities to deal with different fuel assemblies, different core cooling systems, and different reactor layouts. This paper summarizes the general features and utilization of several INVAP research reactor designs, from subcritical and critical assemblies to high-power reactors.

  15. Multi purpose research reactor

    Energy Technology Data Exchange (ETDEWEB)

    Raina, V.K. [Research Reactor Design and Projects Division, Bhabha Atomic Research Centre, Mumbai 400085 (India)]. E-mail: vkrain@magnum.barc.ernet.in; Sasidharan, K. [Research Reactor Design and Projects Division, Bhabha Atomic Research Centre, Mumbai 400085 (India); Sengupta, Samiran [Research Reactor Design and Projects Division, Bhabha Atomic Research Centre, Mumbai 400085 (India); Singh, Tej [Research Reactor Services Division, Bhabha Atomic Research Centre, Mumbai 400085 (India)

    2006-04-15

    At present Dhruva and Cirus reactors provide the majority of research reactor based facilities to cater to the various needs of a vast pool of researchers in the field of material sciences, physics, chemistry, bio sciences, research and development work for nuclear power plants and production of radio isotopes. With a view to further consolidate and expand the scope of research and development in nuclear and allied sciences, a new 20 MWt multi purpose research reactor is being designed. This paper describes some of the design features and safety aspects of this reactor.

  16. Reactor Materials Research

    Energy Technology Data Exchange (ETDEWEB)

    Van Walle, E

    2001-04-01

    The activities of the Reactor Materials Research Department of the Belgian Nuclear Research Centre SCK-CEN in 2000 are summarised. The programmes within the department are focussed on studies concerning (1) fusion, in particular mechanical testing; (2) Irradiation Assisted Stress Corrosion Cracking (IASCC); (3) nuclear fuel; and (4) Reactor Pressure Vessel Steel (RPVS)

  17. Space Nuclear Reactor Engineering

    Energy Technology Data Exchange (ETDEWEB)

    Poston, David Irvin [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-03-06

    We needed to find a space reactor concept that could be attractive to NASA for flight and proven with a rapid turnaround, low-cost nuclear test. Heat-pipe-cooled reactors coupled to Stirling engines long identified as the easiest path to near-term, low-cost concept.

  18. Light water reactor program

    Energy Technology Data Exchange (ETDEWEB)

    Franks, S.M.

    1994-12-31

    The US Department of Energy`s Light Water Reactor Program is outlined. The scope of the program consists of: design certification of evolutionary plants; design, development, and design certification of simplified passive plants; first-of-a-kind engineering to achieve commercial standardization; plant lifetime improvement; and advanced reactor severe accident program. These program activities of the Office of Nuclear Energy are discussed.

  19. Status of French reactors

    Energy Technology Data Exchange (ETDEWEB)

    Ballagny, A. [Commissariat a l`Energie Atomique, Saclay (France)

    1997-08-01

    The status of French reactors is reviewed. The ORPHEE and RHF reactors can not be operated with a LEU fuel which would be limited to 4.8 g U/cm{sup 3}. The OSIRIS reactor has already been converted to LEU. It will use U{sub 3}Si{sub 2} as soon as its present stock of UO{sub 2} fuel is used up, at the end of 1994. The decision to close down the SILOE reactor in the near future is not propitious for the start of a conversion process. The REX 2000 reactor, which is expected to be commissioned in 2005, will use LEU (except if the fast neutrons core option is selected). Concerning the end of the HEU fuel cycle, the best option is reprocessing followed by conversion of the reprocessed uranium to LEU.

  20. Nuclear reactor design

    CERN Document Server

    2014-01-01

    This book focuses on core design and methods for design and analysis. It is based on advances made in nuclear power utilization and computational methods over the past 40 years, covering core design of boiling water reactors and pressurized water reactors, as well as fast reactors and high-temperature gas-cooled reactors. The objectives of this book are to help graduate and advanced undergraduate students to understand core design and analysis, and to serve as a background reference for engineers actively working in light water reactors. Methodologies for core design and analysis, together with physical descriptions, are emphasized. The book also covers coupled thermal hydraulic core calculations, plant dynamics, and safety analysis, allowing readers to understand core design in relation to plant control and safety.

  1. Mirror reactor surface study

    Energy Technology Data Exchange (ETDEWEB)

    Hunt, A. L.; Damm, C. C.; Futch, A. H.; Hiskes, J. R.; Meisenheimer, R. G.; Moir, R. W.; Simonen, T. C.; Stallard, B. W.; Taylor, C. E.

    1976-09-01

    A general survey is presented of surface-related phenomena associated with the following mirror reactor elements: plasma first wall, ion sources, neutral beams, director converters, vacuum systems, and plasma diagnostics. A discussion of surface phenomena in possible abnormal reactor operation is included. Several studies which appear to merit immediate attention and which are essential to the development of mirror reactors are abstracted from the list of recommended areas for surface work. The appendix contains a discussion of the fundamentals of particle/surface interactions. The interactions surveyed are backscattering, thermal desorption, sputtering, diffusion, particle ranges in solids, and surface spectroscopic methods. A bibliography lists references in a number of categories pertinent to mirror reactors. Several complete published and unpublished reports on surface aspects of current mirror plasma experiments and reactor developments are also included.

  2. MASALAH PROGRAMA LINIER FUZZY DENGAN FUNGSI KEANGGOTAAN LINIER

    Directory of Open Access Journals (Sweden)

    Nyoman Sutapa

    2000-01-01

    Full Text Available In practice, the certainess assumption for parameters in linear programming are difficult to pullfiled. The uncertainties are sometimes coming from subjective and intuitive policies. To solve and accommodate these problems, will be approximated by fuzzy set theory. In this article, modeling of linear programming with fuzzy set will be discussed, followed by two cases with membership function are trapezoidal and triangular. Abstract in Bahasa Indonesia : Asumsi kepastian nilai-nilai parameter, dalam pengambilan keputusan yang dimodelkan dengan programa linier, dalam praktek sering sulit dipenuhi. Ketidakpastian yang muncul kadang diakibatkan oleh suatu kebijakan yang intuitif dan subjektif. Untuk memecahkan dan mengakomodasi ketidakpastian seperti tersebut, akan didekati dengan teori himpunan fuzzy. Dalam makalah ini, pemodelan programa linier dengan teori himpunan fuzzy tersebut, akan didiskusikan dengan dua kasus, masing-masing dengan menggunakan fungsi keanggotaan linier, yaitu trapezoida dan triangular. Kata kunci: programa linier, himpunan fuzzy.

  3. Autocuidado materno neonatal en el postparto programa docente asistencial

    Directory of Open Access Journals (Sweden)

    Esguerra Velandia Carmen Rosa

    1994-06-01

    Full Text Available

    El presente artículo muestra un primer avance del programa de autocuidado materno neonatal durante el postparto desarrollado en el Hospital San Blas de Santafé de Bogotá por profesoras y estudiantes de la Facultad de Enfermería de la Universidad Nacional de Colombia, en colaboración con funcionarios del hospital desde 1992. Presenta una caracterización del programa en términos de sus objetivos y su dinámica  metodológica; así mismo hace una caracterización de una muestra poblacional de 80 madres, a partir de las cuales se obtuvieron los diagnósticos de enfermería que permitieron diseñar el presente programa educativo.

  4. El Documentalista en programas de TV: Idiosincrasia y Relaciones profesionales.

    Directory of Open Access Journals (Sweden)

    Silvia Ripoll Mont

    2011-07-01

    Full Text Available Se analiza la figura del documentalista de programas de TV, su integración en proyectos de producción de programas, y su participación en el ciclo de vida de los productos audiovisuales. Se realiza un recorrido por el origen, las funciones y cualidades de los documentalistas de programas de televisión en España. Se reflejan las relaciones laborales con el equipo de producción, de realización, de dirección y redacción para quienes trabaja. Del mismo modo, se detallan las interrelaciones laborales con el centro de documentación de la cadena emisora y con los archivos ajenos públicos, privados y comerciales, con o sin presencia en Internet. Son relaciones de trascendencia vital en la labor de documentar e ilustrar con información multimedia los proyectos audiovisuales.

  5. Slurry reactor design studies

    Energy Technology Data Exchange (ETDEWEB)

    Fox, J.M.; Degen, B.D.; Cady, G.; Deslate, F.D.; Summers, R.L. (Bechtel Group, Inc., San Francisco, CA (USA)); Akgerman, A. (Texas A and M Univ., College Station, TX (USA)); Smith, J.M. (California Univ., Davis, CA (USA))

    1990-06-01

    The objective of these studies was to perform a realistic evaluation of the relative costs of tublar-fixed-bed and slurry reactors for methanol, mixed alcohols and Fischer-Tropsch syntheses under conditions where they would realistically be expected to operate. The slurry Fischer-Tropsch reactor was, therefore, operated at low H{sub 2}/CO ratio on gas directly from a Shell gasifier. The fixed-bed reactor was operated on 2.0 H{sub 2}/CO ratio gas after adjustment by shift and CO{sub 2} removal. Every attempt was made to give each reactor the benefit of its optimum design condition and correlations were developed to extend the models beyond the range of the experimental pilot plant data. For the methanol design, comparisons were made for a recycle plant with high methanol yield, this being the standard design condition. It is recognized that this is not necessarily the optimum application for the slurry reactor, which is being proposed for a once-through operation, coproducing methanol and power. Consideration is also given to the applicability of the slurry reactor to mixed alcohols, based on conditions provided by Lurgi for an Octamix{trademark} plant using their standard tubular-fixed reactor technology. 7 figs., 26 tabs.

  6. Fast Breeder Reactor studies

    Energy Technology Data Exchange (ETDEWEB)

    Till, C.E.; Chang, Y.I.; Kittel, J.H.; Fauske, H.K.; Lineberry, M.J.; Stevenson, M.G.; Amundson, P.I.; Dance, K.D.

    1980-07-01

    This report is a compilation of Fast Breeder Reactor (FBR) resource documents prepared to provide the technical basis for the US contribution to the International Nuclear Fuel Cycle Evaluation. The eight separate parts deal with the alternative fast breeder reactor fuel cycles in terms of energy demand, resource base, technical potential and current status, safety, proliferation resistance, deployment, and nuclear safeguards. An Annex compares the cost of decommissioning light-water and fast breeder reactors. Separate abstracts are included for each of the parts.

  7. Gas cooled fast reactor

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1972-06-01

    Although most of the development work on fast breeder reactors has been devoted to the use of liquid metal cooling, interest has been expressed for a number of years in alternative breeder concepts using other coolants. One of a number of concepts in which interest has been retained is the Gas-Cooled Fast Reactor (GCFR). As presently envisioned, it would operate on the uranium-plutonium mixed oxide fuel cycle, similar to that used in the Liquid Metal Fast Breeder Reactor (LMFBR), and would use helium gas as the coolant.

  8. Microfluidic electrochemical reactors

    Science.gov (United States)

    Nuzzo, Ralph G [Champaign, IL; Mitrovski, Svetlana M [Urbana, IL

    2011-03-22

    A microfluidic electrochemical reactor includes an electrode and one or more microfluidic channels on the electrode, where the microfluidic channels are covered with a membrane containing a gas permeable polymer. The distance between the electrode and the membrane is less than 500 micrometers. The microfluidic electrochemical reactor can provide for increased reaction rates in electrochemical reactions using a gaseous reactant, as compared to conventional electrochemical cells. Microfluidic electrochemical reactors can be incorporated into devices for applications such as fuel cells, electrochemical analysis, microfluidic actuation, pH gradient formation.

  9. Programa de Monitoreo Ambiental para Cementos Cienfuegos S.A

    OpenAIRE

    Mario A. Curbelo Hernández; José Luis Romero Cabrera; Henrry Ricardo Cabrera

    2012-01-01

    La presente investigación se realizó en las instalaciones de Cementos Cienfuegos S.A. Cuba, con el objetivo de diseñar e implementar un programa de monitoreo de las variables de concentración de polvo en aire, tasa de deposición y concentración de metales pesados, para la valoración de la calidad del aire a partir de índices establecidos en la norma NC ISO 111:2004. Este programa incluye también el monitoreo de los parámetr...

  10. Impacto de un programa de comprensión lectora

    OpenAIRE

    2012-01-01

    Se analiza la repercusión de un programa para el mejoramiento de la comprensión lectora en el desempeño de los alumnos de segundo grado de telesecundarias en dos pruebas estandarizadas: la prueba de Complejidad Lingüística Progresiva (CLP) y ENLACE. El programa estuvo centrado en la enseñanza de estrategias para la comprensión, antes, durante y después de la lectura. La metodología fue mixta: cualitativa y cuantitativa. Los resultados muestran que los alumnos mejoraron, como era de esperarse,...

  11. Cómo producir un programa de radio

    Directory of Open Access Journals (Sweden)

    Carlos Araya Rivera

    2006-01-01

    Full Text Available La producción radiofónica actual requiere de mejores procedimientos para la elaboración de programas. En este artículo se presentan algunos elementos teórico-prácticos que favorecen la producción profesional y sistemática de mensajes y programas radiofónicos, de manera que puedan transmitirse tanto en emisoras culturales como comerciales, de manera tradicional (por antena o bien vía podcasting.

  12. El programa ZUMAR+FIDEPO. Análisis y comparación con otros programas latinoamericanos

    Directory of Open Access Journals (Sweden)

    Gisela Landázuri Benítez

    2008-01-01

    Full Text Available Se presenta una revisión pormenorizada del modelo del Programa de Desarrollo Comunitario para Zonas Urbano Marginadas ZUMAR+FIDEPO (Z+F, programa de desarrollo social administrado por la Secretaría de Desarrollo Social y Humano del estado de Guanajuato, que opera como fideicomiso público. A partir de un análisis documental, se destacan la filosofía y visión y se hace un análisis de su discurso y conceptualización en torno al desarrollo, la participación y la intervención como elementos estructurantes del programa. Se incluye también una comparación puntual con otros proyectos similares en Chile y Cuba.

  13. Fusion Reactor Materials

    Energy Technology Data Exchange (ETDEWEB)

    Decreton, M

    2002-04-01

    The objective of SCK-CEN's programme on fusion reactor materials is to contribute to the knowledge on the radiation-induced behaviour of fusion reactor materials and components as well as to help the international community in building the scientific and technical basis needed for the construction of the future reactor. Ongoing projects include: the study of the mechanical and chemical (corrosion) behaviour of structural materials under neutron irradiation and water coolant environment; the investigation of the characteristics of irradiated first wall material such as beryllium; investigations on the management of materials resulting from the dismantling of fusion reactors including waste disposal. Progress and achievements in these areas in 2001 are discussed.

  14. New reactor type proposed

    CERN Multimedia

    2003-01-01

    "Russian scientists at the Research Institute of Nuclear Power Engineering in Moscow are hoping to develop a new reactor that will use lead and bismuth as fuel instead of uranium and plutonium" (1/2 page).

  15. Reactor Neutrino Spectra

    CERN Document Server

    Hayes, A C

    2016-01-01

    We present a review of the antineutrino spectra emitted from reactors. Knowledge of these and their associated uncertainties are crucial for neutrino oscillation studies. The spectra used to-date have been determined by either conversion of measured electron spectra to antineutrino spectra or by summing over all of the thousands of transitions that makeup the spectra using modern databases as input. The uncertainties in the subdominant corrections to beta-decay plague both methods, and we provide estimates of these uncertainties. Improving on current knowledge of the antineutrino spectra from reactors will require new experiments. Such experiments would also address the so-called reactor neutrino anomaly and the possible origin of the shoulder observed in the antineutrino spectra measured in recent high-statistics reactor neutrino experiments.

  16. Reactor BR2. Introduction

    Energy Technology Data Exchange (ETDEWEB)

    Gubel, P

    2001-04-01

    The BR2 is a materials testing reactor and is still one of SCK-CEN's important nuclear facilities. After an extensive refurbishment to compensate for the ageing of the installation, the reactor was restarted in April 1997. During the last three years, the availability of the installation was maintained at an average level of 97.6 percent. In the year 2000, the reactor was operated for a total of 104 days at a mean power of 56 MW. In 2000, most irradiation experiments were performed in the CALLISTO PWR loop. The report describes irradiations achieved or under preparation in 2000, including the development of advanced facilities and concept studies for new programmes. An overview of the scientific irradiation programmes as well as of the R and D programme of the BR2 reactor in 2000 is given.

  17. Conceptos claves en un programa educativo Conceitos chave em um programa educativo Key Concepts in an Educational Program

    OpenAIRE

    MYRIAM PATRICIA PARDO TORRES; KAREN TATIANA SANTACRUZ PARDO; YURI PATRICIA RAMOS ANACONA; CATHERINE ARANGO MARTÍNEZ

    2010-01-01

    Se presentan los resultados de la revisión de literatura sobre los conceptos comunicación asertiva, afecto y las visiones de enfermería de reciprocidad y simultaneidad como sustento base de un programa educativo de intervención con adolescentes para promover la responsabilidad procreativa. La revisión bibliográfica sistemática tomó como bases de datos Ebsco-Host y Scielo. Conclusiones: la comunicación asertiva es una habilidad social aprendida, que es necesario fortalecer en los programas de ...

  18. Future Reactor Experiments

    OpenAIRE

    He, Miao

    2013-01-01

    The measurement of the neutrino mixing angle $\\theta_{13}$ opens a gateway for the next generation experiments to measure the neutrino mass hierarchy and the leptonic CP-violating phase. Future reactor experiments will focus on mass hierarchy determination and the precision measurement of mixing parameters. Mass hierarchy can be determined from the disappearance of reactor electron antineutrinos based on the interference effect of two separated oscillation modes. Relative and absolute measure...

  19. Reactor Neutrino Experiments

    OpenAIRE

    Cao, Jun

    2007-01-01

    Precisely measuring $\\theta_{13}$ is one of the highest priority in neutrino oscillation study. Reactor experiments can cleanly determine $\\theta_{13}$. Past reactor neutrino experiments are reviewed and status of next precision $\\theta_{13}$ experiments are presented. Daya Bay is designed to measure $\\sin^22\\theta_{13}$ to better than 0.01 and Double Chooz and RENO are designed to measure it to 0.02-0.03. All are heading to full operation in 2010. Recent improvements in neutrino moment measu...

  20. Department of Reactor Technology

    DEFF Research Database (Denmark)

    Risø National Laboratory, Roskilde

    The general development of the Department of Reactor Technology at Risø during 1981 is presented, and the activities within the major subject fields are described in some detail. Lists of staff, publications, and computer programs are included.......The general development of the Department of Reactor Technology at Risø during 1981 is presented, and the activities within the major subject fields are described in some detail. Lists of staff, publications, and computer programs are included....

  1. Helias reactor studies

    Energy Technology Data Exchange (ETDEWEB)

    Beidler, C.D. [Max-Planck-Institut fuer Plasmaphysik, Garching (Germany); Grieger, G. [Max-Planck-Institut fuer Plasmaphysik, Garching (Germany); Harmeyer, E. [Max-Planck-Institut fuer Plasmaphysik, Garching (Germany); Kisslinger, J. [Max-Planck-Institut fuer Plasmaphysik, Garching (Germany); Karulin, N. [Nuclear Fusion Institute, Moscow (Russian Federation); Maurer, W. [Forschungszentrum Karlsruhe GmbH Technik und Umwelt (Germany); Nuehrenberg, J. [Max-Planck-Institut fuer Plasmaphysik, Garching (Germany); Rau, F. [Max-Planck-Institut fuer Plasmaphysik, Garching (Germany); Sapper, J. [Max-Planck-Institut fuer Plasmaphysik, Garching (Germany); Wobig, H. [Max-Planck-Institut fuer Plasmaphysik, Garching (Germany)

    1995-10-01

    The present status of Helias reactor studies is characterised by the identification and investigation of specific issues which result from the particular properties of this type of stellarator. On the technical side these are issues related to the coil system, while physics studies have concentrated on confinement, alpha-particle behaviour and ignition conditions. The usual assumptions have been made in those fields which are common to all toroidal fusion reactors: blanket and shield, refuelling and exhaust, safety and economic aspects. For blanket and shield sufficient space has been provided, a detailed concept will be developed in future. To date more emphasis has been placed on scoping and parameter studies as opposed to fixing a specific set of parameters and providing a detailed point study. One result of the Helias reactor studies is that physical dimensions are on the same order as those of tokamak reactors. However, it should be noticed that this comparison is difficult in view of the large spectrum of tokamak reactors ranging from a small reactor like Aries, to a large device such as SEAFP. The notion that the large aspect ratio of 10 or more in Helias configurations also leads to large reactors is misleading, since the large major radius of 22 m is compensated by the average plasma radius of 1.8 m and the average coil radius of 5 m. The plasma volume of 1400 m{sup 3} is about the same as the ITER reactor and the magnetic energy of the coil system is about the same or even slightly smaller than envisaged in ITER. (orig.)

  2. INVAP's Research Reactor Designs

    OpenAIRE

    Eduardo Villarino; Alicia Doval

    2011-01-01

    INVAP, an Argentine company founded more than three decades ago, is today recognized as one of the leaders within the research reactor industry. INVAP has participated in several projects covering a wide range of facilities, designed in accordance with the requirements of our different clients. For complying with these requirements, INVAP developed special skills and capabilities to deal with different fuel assemblies, different core cooling systems, and different reactor layouts. This paper ...

  3. The reactor antineutrino anomalies

    Energy Technology Data Exchange (ETDEWEB)

    Haser, Julia; Buck, Christian; Lindner, Manfred [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany)

    2016-07-01

    Major discoveries were made in the past few years in the field of neutrino flavour oscillation. Nuclear reactors produce a clean and intense flux of electron antineutrinos and are thus an essential neutrino source for the determination of oscillation parameters. Most currently the reactor antineutrino experiments Double Chooz, Daya Bay and RENO have accomplished to measure θ{sub 13}, the smallest of the three-flavour mixing angles. In the course of these experiments two anomalies emerged: (1) the reanalysis of the reactor predictions revealed a deficit in experimentally observed antineutrino flux, known as the ''reactor antineutrino anomaly''. (2) The high precision of the latest generation of neutrino experiments resolved a spectral shape distortion relative to the expected energy spectra. Both puzzles are yet to be solved and triggered new experimental as well as theoretical studies, with the search for light sterile neutrinos as most popular explanation for the flux anomaly. This talk outlines the two reactor antineutrino anomalies. Discussing possible explanations for their occurrence, recent and upcoming efforts to solve the reactor puzzles are highlighted.

  4. Moon base reactor system

    Science.gov (United States)

    Chavez, H.; Flores, J.; Nguyen, M.; Carsen, K.

    1989-01-01

    The objective of our reactor design is to supply a lunar-based research facility with 20 MW(e). The fundamental layout of this lunar-based system includes the reactor, power conversion devices, and a radiator. The additional aim of this reactor is a longevity of 12 to 15 years. The reactor is a liquid metal fast breeder that has a breeding ratio very close to 1.0. The geometry of the core is cylindrical. The metallic fuel rods are of beryllium oxide enriched with varying degrees of uranium, with a beryllium core reflector. The liquid metal coolant chosen was natural lithium. After the liquid metal coolant leaves the reactor, it goes directly into the power conversion devices. The power conversion devices are Stirling engines. The heated coolant acts as a hot reservoir to the device. It then enters the radiator to be cooled and reenters the Stirling engine acting as a cold reservoir. The engines' operating fluid is helium, a highly conductive gas. These Stirling engines are hermetically sealed. Although natural lithium produces a lower breeding ratio, it does have a larger temperature range than sodium. It is also corrosive to steel. This is why the container material must be carefully chosen. One option is to use an expensive alloy of cerbium and zirconium. The radiator must be made of a highly conductive material whose melting point temperature is not exceeded in the reactor and whose structural strength can withstand meteor showers.

  5. Cuidando al cuidador: efectos de un programa educativo

    Directory of Open Access Journals (Sweden)

    Juan Carlos Díaz-Álvarez

    2009-01-01

    Full Text Available El presente estudio muestra los resultados de la investigación "Efectos del programa 'Cuidando al cuidador' en un grupo de cuidadores familiares de los municipios de Girardot y Flandes vinculados a la Universidad de Cundinamarca, adelantada en un período de 12 meses. Objetivo: evaluar la efectividad del programa desarrollado por la Universidad Nacional de Colombia, en cuidadores familiares de personas con enfermedad crónica, en las citadas ciudades de los departamentos de Cundinamarca y Tolima, Colombia. Método: se utilizó el Inventario de Habilidad de Cuidado (CAI -Care Ability Inventory propuesto por Ngozi O. Nkongho, y se aplicó como pre y posprueba. El estudio es cuasiexperimental y se realizó con 72 cuidadores familiares, que se distribuyeron en dos grupos; uno de control, formado por 35 personas, y otro experimental, integrado por 37 cuidadores. Resultados: los hallazgos señalan la efectividad del programa para desarrollar las dimensiones de conocimiento y paciencia en el grupo experimental. La dimensión de valor permaneció inmodificable tanto en el grupo de control como en el experimental, lo cual indica que el programa no fue efectivo para incrementar el valor como dimensión de cuidado.

  6. Programa de las lecciones de Farmacología

    OpenAIRE

    Arce, Julián; Facultad de Medicina, Universidad Nacional Mayor de San Marcos, Lima, Perú

    2014-01-01

    Programa de las lecciones de Farmacología por el Profesor Dr. Julián Arce, Catedrático principal de Enfermedades Tropicales e Interno de Farmacología, Presidente de la Academia Nacional de Medicina. Program lessons Pharmacology Professor Dr. Julian Arce, principal Professor of Tropical Diseases and Internal Pharmacology, Chair of the National Academy of Medicine.

  7. Dinamarca: funcionamiento, programas y proyectos del Consorcio de Bibliotecas Pica

    OpenAIRE

    Quintana de Uña, María José

    1998-01-01

    El programa incluía visitas de tres tipos: instituciones centralizadas, bibliotecas públicas y bibliotecas universitarias. El sistema bibliotecario danés en las fechas de la visita llevaban a cabo un especial hincapié en la llamada Sociedad de la Información.

  8. Los cuentos en el programa “Libro al Viento”

    Directory of Open Access Journals (Sweden)

    Carolina Arias-Arenas

    2013-01-01

    Full Text Available Esta investigación analiza el funcionamiento, conocimiento y valoración del programa Libro al Viento con el propósito de ofrecer nuevos datos que permitan mejoras, en la ciudad, al programa en su modalidad Institución Educativa. El trabajo de campo se abordó con un grupo de 60 docentes del Colegio Marco Antonio Carreño Silva, ubicado en la ciudad de Bogotá (Colombia. Con el cuestionario cerrado que se aplicó se indagaron tres aspectos: el conocimiento del programa, el acceso y uso de los libros de cuento y las prácticas de lectura de los cuentos. Los cinco libros de cuentos menos conocidos por los docentes han sido clasificados y valorados según el tipo de lector sugerido por Fundalectura. Finalmente se proponen algunos indicadores de impacto a partir de las variables analizadas con respecto a la lectura de cuentos para este programa.

  9. Eficacia de los programas de seguridad del paciente

    Directory of Open Access Journals (Sweden)

    Miriam Estepa del Árbol

    2016-03-01

    Full Text Available Introducción: La seguridad del paciente constituye un componente clave de la calidad asistencial que en los últimos años ha alcanzado gran relevancia. Objetivos: Conocer la producción bibliográfica existente sobre la aplicación de programas o medidas en materia de seguridad del paciente. Métodos: Se realizó una búsqueda en las bases de datos de Pubmed y Health & Medical Complete, durante el periodo de febrero a mayo del año 2015. Se incluyeron artículos científicos en inglés y español y se analizaron estudios que evaluaban cualquier programa de seguridad para el paciente, excluyendo aquellos que no presentaban resultados. Resultados: El seguimiento de una lista de verificación en quirófano resultó ser efectivo en la disminución de complicaciones, la estrategia de higiene de manos mostró altas tasas de cumplimiento sobretodo en servicios de aislamiento y unidades de cuidados intensivos, el proyecto bacteriemia Zero fue eficaz en la reducción de infecciones relacionadas a catéter venoso central, el programa de prevención de caídas carece de suficiente evidencia para confirmar la efectividad, la pulsera identificativa de pacientes mostró alta implantación pero baja implicación profesional y la evaluación de programas para evitar errores de medicación es escasa aunque los casos analizados se han asociado a reducciones del riesgo. Conclusiones: Existen múltiples programas de seguridad, diseñados y adaptados para cada institución, en cambio son escasos los estudios que se llevan a cabo para evaluar la eficacia de estas estrategias una vez establecidas.

  10. Reactor Safety Planning for Prometheus Project, for Naval Reactors Information

    Energy Technology Data Exchange (ETDEWEB)

    P. Delmolino

    2005-05-06

    The purpose of this letter is to submit to Naval Reactors the initial plan for the Prometheus project Reactor Safety work. The Prometheus project is currently developing plans for cold physics experiments and reactor prototype tests. These tests and facilities may require safety analysis and siting support. In addition to the ground facilities, the flight reactor units will require unique analyses to evaluate the risk to the public from normal operations and credible accident conditions. This letter outlines major safety documents that will be submitted with estimated deliverable dates. Included in this planning is the reactor servicing documentation and shipping analysis that will be submitted to Naval Reactors.

  11. REACTOR GROUT THERMAL PROPERTIES

    Energy Technology Data Exchange (ETDEWEB)

    Steimke, J.; Qureshi, Z.; Restivo, M.; Guerrero, H.

    2011-01-28

    Savannah River Site has five dormant nuclear production reactors. Long term disposition will require filling some reactor buildings with grout up to ground level. Portland cement based grout will be used to fill the buildings with the exception of some reactor tanks. Some reactor tanks contain significant quantities of aluminum which could react with Portland cement based grout to form hydrogen. Hydrogen production is a safety concern and gas generation could also compromise the structural integrity of the grout pour. Therefore, it was necessary to develop a non-Portland cement grout to fill reactors that contain significant quantities of aluminum. Grouts generate heat when they set, so the potential exists for large temperature increases in a large pour, which could compromise the integrity of the pour. The primary purpose of the testing reported here was to measure heat of hydration, specific heat, thermal conductivity and density of various reactor grouts under consideration so that these properties could be used to model transient heat transfer for different pouring strategies. A secondary purpose was to make qualitative judgments of grout pourability and hardened strength. Some reactor grout formulations were unacceptable because they generated too much heat, or started setting too fast, or required too long to harden or were too weak. The formulation called 102H had the best combination of characteristics. It is a Calcium Alumino-Sulfate grout that contains Ciment Fondu (calcium aluminate cement), Plaster of Paris (calcium sulfate hemihydrate), sand, Class F fly ash, boric acid and small quantities of additives. This composition afforded about ten hours of working time. Heat release began at 12 hours and was complete by 24 hours. The adiabatic temperature rise was 54 C which was within specification. The final product was hard and displayed no visible segregation. The density and maximum particle size were within specification.

  12. Scaleable, High Efficiency Microchannel Sabatier Reactor Project

    Data.gov (United States)

    National Aeronautics and Space Administration — A Microchannel Sabatier Reactor System (MSRS) consisting of cross connected arrays of isothermal or graded temperature reactors is proposed. The reactor array...

  13. Impacto sobre el estado de salud de los programas de transferencia condicionada de renta: el Programa Bolsa Familia de Brasil

    Directory of Open Access Journals (Sweden)

    Berta Rivera Castiñeira

    2009-01-01

    Full Text Available Las transferencias condicionadas de renta se están consolidando como instrumento estándar para la reducción de la pobreza. El Programa Bolsa Familia implementado en Brasil es el de mayor envergadura de este tipo de programa en el mundo. La evaluación de su impacto ofrece algunas indicaciones extrapolables a otros países. En este artículo se pone en evidencia la falta de resultados de este programa en términos de estado de salud y de modificación de conductas no saludables. la existencia de barreras por el lado de la oferta aparece como la limitación más importante para la consecución de mejores resultados en este ámbito. Sin embargo, el impacto positivo del programa sobre la educación y la reducción de la pobreza permite predecir mejoras en el estado de salud de la población a largo plazo.

  14. LMFBR type reactor

    Energy Technology Data Exchange (ETDEWEB)

    Shimizu, Takeshi; Iida, Masaaki; Moriki, Yasuyuki

    1994-10-18

    A reactor core is divided into a plurality of coolants flowrate regions, and electromagnetic pumps exclusively used for each of the flowrate regions are disposed to distribute coolants flowrates in the reactor core. Further, the flowrate of each of the electromagnetic pumps is automatically controlled depending on signals from a temperature detector disposed at the exit of the reactor core, so that the flowrate of the region can be controlled optimally depending on the burning of reactor core fuels. Then, the electromagnetic pumps disposed for every divided region are controlled respectively, so that the coolants flowrate distribution suitable to each of the regions can be attained. Margin for fuel design is decreased, fuels are used effectively, as well as an operation efficiency can be improved. Moreover, since the electromagnetic pump has less flow resistance compared with a mechanical type pump, and flow resistance of the reactor core flowrate control mechanism is eliminated, greater circulating flowrate can be ensured after occurrence of accident in a natural convection using a buoyancy of coolants utilizable for after-heat removal as a driving force. (N.H.).

  15. Fuel management inside the reactor. Project AZ-101 (ININ). Report of the generation of the nuclear bank 'L1PG3826' of the assemblies GE5 and GE9B 'collapsed' of the CNLV for the FCS-II program of the FMS system; Administracion de combustible dentro del reactor. Proyecto AZ-101 (ININ). Reporte de generacion del banco nuclear 'L1PG3826' de los ensambles GE5 y GE9B 'colapsados' de la CNLV para el programa FCS-II del FMS

    Energy Technology Data Exchange (ETDEWEB)

    Alonso V, G.; Torres A, C

    1991-06-15

    In order to be able to carry out studies but next to the operation of the reactor of the CNLV with the program FCS-II of the package of codes for the fuel management FMS, it was generated a 'collapsed' nuclear bank integrating the generated information with RECORD of each one of those assemblies of the initial load and of the first recharge. To generate the bank, the different ones RECORD 'cells' that compose each assemble were 'collapsed' to an alone one, representing this, to the one complete assemble in what refers to the fuel bars distribution and enrichments. The one collapsed of each assemble it is made averaging the content of UO{sub 2} and Gd{sub 2}O{sub 3} in each fuel bar by the volumetric fraction occupied by each axial section of the fuel bar where the content of UO{sub 2} and Gd{sub 2}O{sub 3} were constant, by this way the x-y fuel bars arrangement is conserved but a representative fuel cell of all the assemble is obtained. Of the five different assemblies that will be load in the reactor of the CNLV (3 of the initial load and 2 of the first recharge), only 4 were collapsed; the remaining one to be totally formed by natural uranium it was not necessary to collapse. From the collapsing process new enrichment values in U-235 and in content of Gd{sub 2}O{sub 3} for each fuel bar, for what according to the generation procedure of nuclear information it was generated the required information by RECORD for each fuel bar with Gd{sub 2}O{sub 3} with the ECLIPSE code. Once generated this information it was proceeded to generate the homogenized nuclear information, with RECORD, for the whole cell. According to the requirements of nuclear information of FCS-II, the nuclear Information generated with RECORD only was of the defined type as series 1 in the procedure of generation of nuclear banks '6F3/1/CN029/90/P1'; that which means that only it was generated nuclear information as function of the burnup of the fuel and of

  16. Reactor Structural Materials: Reactor Pressure Vessel Steels

    Energy Technology Data Exchange (ETDEWEB)

    Chaouadi, R

    2000-07-01

    The objectives of SCK-CEN's R and D programme on Rector Pressure Vessel (RPV) Steels are:(1) to complete the fracture toughness data bank of various reactor pressure vessel steels by using precracked Charpy specimens that were tested statically as well as dynamically; (2) to implement the enhanced surveillance approach in a user-friendly software; (3) to improve the existing reconstitution technology by reducing the input energy (short cycle welding) and modifying the stud geometry. Progress and achievements in 1999 are reported.

  17. Operation of Reactor

    Institute of Scientific and Technical Information of China (English)

    1996-01-01

    3.1 Annual Report of SPR Operation Chu Shaochu Having overseen by National Nuclear Safety Administration and specialists, the reactor restarted up successfully after Safety renovation on April 16, 1996. In August 1996 the normal operation of SPR was approved by the authorities of Naitonal Nuclear Safety Administration. 1 Operation status In 1996, the reactor operated safely for 40 d and the energy released was about 137.3 MW·d. The operation status of SPR is shown in table 1. The reactor started up to higher power (power more than 1 MW) and lower power (for physics experiments) 4 times and 14 times respectively. Measurement of control rod efficiency and other measurement tasks were 2 times and 5 times respectively.

  18. Nuclear Rocket Engine Reactor

    CERN Document Server

    Lanin, Anatoly

    2013-01-01

    The development of a nuclear rocket engine reactor (NRER ) is presented in this book. The working capacity of an active zone NRER under mechanical and thermal load, intensive neutron fluxes, high energy generation (up to 30 MBT/l) in a working medium (hydrogen) at temperatures up to 3100 K is displayed. Design principles and bearing capacity of reactors area discussed on the basis of simulation experiments and test data of a prototype reactor. Property data of dense constructional, porous thermal insulating and fuel materials like carbide and uranium carbide compounds in the temperatures interval 300 - 3000 K are presented. Technological aspects of strength and thermal strength resistance of materials are considered. The design procedure of possible emergency processes in the NRER is developed and risks for their origination are evaluated. Prospects of the NRER development for pilotless space devices and piloted interplanetary ships are viewed.

  19. Thermionic Reactor Design Studies

    Energy Technology Data Exchange (ETDEWEB)

    Schock, Alfred

    1994-08-01

    Paper presented at the 29th IECEC in Monterey, CA in August 1994. The present paper describes some of the author's conceptual designs and their rationale, and the special analytical techniques developed to analyze their (thermionic reactor) performance. The basic designs, first published in 1963, are based on single-cell converters, either double-ended diodes extending over the full height of the reactor core or single-ended diodes extending over half the core height. In that respect they are similar to the thermionic fuel elements employed in the Topaz-2 reactor subsequently developed in the Soviet Union, copies of which were recently imported by the U.S. As in the Topaz-2 case, electrically heated steady-state performance tests of the converters are possible before fueling.

  20. An Overview of Reactor Concepts, a Survey of Reactor Designs.

    Science.gov (United States)

    1985-02-01

    Public Affairs Office and is releasaole to the National Technical Information Services (NTIS). At NTIS, it will be available to the general public...Reactors that use deu- terium (heavy water) as a coolant can use natural uranium as a fuel. The * Canadian reactor, CANDU , utilizes this concept...reactor core at the top and discharged at the Dotton while the reactor is in operation. The discharged fuel can then b inspected to see if it can De used

  1. Oscillatory flow chemical reactors

    Directory of Open Access Journals (Sweden)

    Slavnić Danijela S.

    2014-01-01

    Full Text Available Global market competition, increase in energy and other production costs, demands for high quality products and reduction of waste are forcing pharmaceutical, fine chemicals and biochemical industries, to search for radical solutions. One of the most effective ways to improve the overall production (cost reduction and better control of reactions is a transition from batch to continuous processes. However, the reactions of interests for the mentioned industry sectors are often slow, thus continuous tubular reactors would be impractically long for flow regimes which provide sufficient heat and mass transfer and narrow residence time distribution. The oscillatory flow reactors (OFR are newer type of tube reactors which can offer solution by providing continuous operation with approximately plug flow pattern, low shear stress rates and enhanced mass and heat transfer. These benefits are the result of very good mixing in OFR achieved by vortex generation. OFR consists of cylindrical tube containing equally spaced orifice baffles. Fluid oscillations are superimposed on a net (laminar flow. Eddies are generated when oscillating fluid collides with baffles and passes through orifices. Generation and propagation of vortices create uniform mixing in each reactor cavity (between baffles, providing an overall flow pattern which is close to plug flow. Oscillations can be created by direct action of a piston or a diaphragm on fluid (or alternatively on baffles. This article provides an overview of oscillatory flow reactor technology, its operating principles and basic design and scale - up characteristics. Further, the article reviews the key research findings in heat and mass transfer, shear stress, residence time distribution in OFR, presenting their advantages over the conventional reactors. Finally, relevant process intensification examples from pharmaceutical, polymer and biofuels industries are presented.

  2. Perspectives on reactor safety

    Energy Technology Data Exchange (ETDEWEB)

    Haskin, F.E. [New Mexico Univ., Albuquerque, NM (United States). Dept. of Chemical and Nuclear Engineering; Camp, A.L. [Sandia National Labs., Albuquerque, NM (United States)

    1994-03-01

    The US Nuclear Regulatory Commission (NRC) maintains a technical training center at Chattanooga, Tennessee to provide appropriate training to both new and experienced NRC employees. This document describes a one-week course in reactor, safety concepts. The course consists of five modules: (1) historical perspective; (2) accident sequences; (3) accident progression in the reactor vessel; (4) containment characteristics and design bases; and (5) source terms and offsite consequences. The course text is accompanied by slides and videos during the actual presentation of the course.

  3. Reactor Materials Research

    Energy Technology Data Exchange (ETDEWEB)

    Van Walle, E

    2002-04-01

    The activities of SCK-CEN's Reactor Materials Research Department for 2001 are summarised. The objectives of the department are: (1) to evaluate the integrity and behaviour of structural materials used in nuclear power industry; (2) to conduct research to unravel and understand the parameters that determine the material behaviour under or after irradiation; (3) to contribute to the interpretation, the modelling of the material behaviour and to develop and assess strategies for optimum life management of nuclear power plant components. The programmes within the department are focussed on studies concerning (1) Irradiation Assisted Stress Corrosion Cracking (IASCC); (2) nuclear fuel; and (3) Reactor Pressure Vessel Steel.

  4. Fusion Reactor Materials

    Energy Technology Data Exchange (ETDEWEB)

    Decreton, M

    2000-07-01

    SCK-CEN's research and development programme on fusion reactor materials includes: (1) the study of the mechanical behaviour of structural materials under neutron irradiation (including steels, inconel, molybdenum, chromium); (2) the determination and modelling of the characteristics of irradiated first wall materials such as beryllium; (3) the detection of abrupt electrical degradation of insulating ceramics under high temperature and neutron irradiation; (4) the study of the dismantling and waste disposal strategy for fusion reactors.; (5) a feasibility study for the testing of blanket modules under neutron radiation. Main achievements in these topical areas in the year 1999 are summarised.

  5. High Flux Isotope Reactor (HFIR)

    Data.gov (United States)

    Federal Laboratory Consortium — The HFIR at Oak Ridge National Laboratory is a light-water cooled and moderated reactor that is the United States’ highest flux reactor-based neutron source. HFIR...

  6. Reactor operation environmental information document

    Energy Technology Data Exchange (ETDEWEB)

    Haselow, J.S.; Price, V.; Stephenson, D.E.; Bledsoe, H.W.; Looney, B.B.

    1989-12-01

    The Savannah River Site (SRS) produces nuclear materials, primarily plutonium and tritium, to meet the requirements of the Department of Defense. These products have been formed in nuclear reactors that were built during 1950--1955 at the SRS. K, L, and P reactors are three of five reactors that have been used in the past to produce the nuclear materials. All three of these reactors discontinued operation in 1988. Currently, intense efforts are being extended to prepare these three reactors for restart in a manner that protects human health and the environment. To document that restarting the reactors will have minimal impacts to human health and the environment, a three-volume Reactor Operations Environmental Impact Document has been prepared. The document focuses on the impacts of restarting the K, L, and P reactors on both the SRS and surrounding areas. This volume discusses the geology, seismology, and subsurface hydrology. 195 refs., 101 figs., 16 tabs.

  7. PROGRAMAS INFORMÁTICOS PARA COMPARACIONES ENTRE CORRELACIONES: MUESTRAS INDEPENDIENTES

    Directory of Open Access Journals (Sweden)

    N. Clayton Silver

    2016-06-01

    Full Text Available RESUMEN Existe una variedad de técnicas para probar las diferencias entre correlaciones independientes que no están disponibles en los programas estadísticos familiares para el investigador. Se presentan ejemplos de estas técnicas para evaluar diferentes hipótesis dentro del contexto de correlaciones en muestras independientes, junto con programas informáticos interactivos, amigables y libre distribución. ABSTRACT There is a variety of techniques to test the differences between independent correlations which are not available in statistical programs familiar to the researcher. We present examples of these techniques to evaluate different hypotheses within the context of correlations in independent samples, together with interactive, friendly and freeware computer programs.

  8. DOCUMENTO: LA PRACTICA PROFESIONAL EN EL PROGRAMA DE TRABAJO SOCIAL

    Directory of Open Access Journals (Sweden)

    Liliana Pérez Mendoza

    2001-08-01

    Full Text Available La Facultad de Ciencias Sociales y Educación a través del Departamento de Practicas y el programa de Trabajo Social de la misma proyectan la acción de los Trabajadores Sociales en formación en diferentes áreas temáticas a fin de propiciar en los diferentes contextos donde tiene lugar, un desarrollo social, humano y sostenible con la participación en diferentes comunidades de la ciudad y la región, de docentes y estudiantes, a través de’ estrategias de acción profesional como: diagnósticos participativos, programas / proyectos de integración comunitaria, de generación de ingresos, de Desarrollo a Organizacional, de fortalecimiento de vínculos familiares, de convivencia ciudadana y de Desarrollo Municipal.

  9. Reactor operation safety information document

    Energy Technology Data Exchange (ETDEWEB)

    1990-01-01

    The report contains a reactor facility description which includes K, P, and L reactor sites, structures, operating systems, engineered safety systems, support systems, and process and effluent monitoring systems; an accident analysis section which includes cooling system anomalies, radioactive materials releases, and anticipated transients without scram; a summary of onsite doses from design basis accidents; severe accident analysis (reactor core disruption); a description of operating contractor organization and emergency planning; and a summary of reactor safety evolution. (MB)

  10. Propuesta de programa educativo sobre enfermedades del cuello uterino

    Directory of Open Access Journals (Sweden)

    Grisel Mariela Mass Basulto

    2011-10-01

    Full Text Available Fundamento: El cáncer ginecológico está entre las más frecuentes causas de muerte en la población femenina. En Cuba, el diagnóstico precoz de tal afección está entre los programas priorizados del Sistema de Salud Pública; pero también es necesario enfatizar en la prevención, que puede lograse, sobre todo, desde la atención primaria de salud, mediante la implementación de programas educativos. Objetivo: Diseñar un programa educativo sobre afecciones del cuello uterino. Métodos: Estudio descriptivo y retrospectivo, en el período comprendido del 1 de enero de 2008 al 1 de enero de 2009. Se analizaron variables como edad, escolaridad, primeras relaciones sexuales, número de partos, número de compañeros sexuales, uso de anticonceptivo, antecedentes de infecciones de transmisión sexual, hábitos tóxicos y nivel de conocimiento. Se aplicó el criterio de expertos para la validación de la propuesta educativa. Resultados: La mayoría de las mujeres tuvieron relaciones sexuales precoces, cuatro o más compañeros sexuales y eran fumadoras, mientras que el total de ellas había presentado alguna vez infecciones vaginales. El nivel de conocimiento que predominó fue regular. Conclusiones: Es evidente que en la población estudiada se concentran varios factores de riesgo para el cáncer de cuello uterino. El Programa Educativo sobre enfermedades del cuello uterino, fue validado mediante criterio de expertos, los cuales coincidieron en que tiene gran actualidad científica, congruencia interna y en que favorece el proceso de preparación de la mujer para evitar ese tipo de enfermedades.

  11. REACTOR FUEL ELEMENTS TESTING CONTAINER

    Science.gov (United States)

    Whitham, G.K.; Smith, R.R.

    1963-01-15

    This patent shows a method for detecting leaks in jacketed fuel elements. The element is placed in a sealed tank within a nuclear reactor, and, while the reactor operates, the element is sparged with gas. The gas is then led outside the reactor and monitored for radioactive Xe or Kr. (AEC)

  12. Nuclear Reactors and Technology

    Energy Technology Data Exchange (ETDEWEB)

    Cason, D.L.; Hicks, S.C. [eds.

    1992-01-01

    This publication Nuclear Reactors and Technology (NRT) announces on a monthly basis the current worldwide information available from the open literature on nuclear reactors and technology, including all aspects of power reactors, components and accessories, fuel elements, control systems, and materials. This publication contains the abstracts of DOE reports, journal articles, conference papers, patents, theses, and monographs added to the Energy Science and Technology Database during the past month. Also included are US information obtained through acquisition programs or interagency agreements and international information obtained through the International Energy Agency`s Energy Technology Data Exchange or government-to-government agreements. The digests in NRT and other citations to information on nuclear reactors back to 1948 are available for online searching and retrieval on the Energy Science and Technology Database and Nuclear Science Abstracts (NSA) database. Current information, added daily to the Energy Science and Technology Database, is available to DOE and its contractors through the DOE Integrated Technical Information System. Customized profiles can be developed to provide current information to meet each user`s needs.

  13. WATER BOILER REACTOR

    Science.gov (United States)

    King, L.D.P.

    1960-11-22

    As its name implies, this reactor utilizes an aqueous solution of a fissionable element salt, and is also conventional in that it contains a heat exchanger cooling coil immersed in the fuel. Its novelty lies in the utilization of a cylindrical reactor vessel to provide a critical region having a large and constant interface with a supernatant vapor region, and the use of a hollow sleeve coolant member suspended from the cover assembly in coaxial relation with the reactor vessel. Cool water is circulated inside this hollow coolant member, and a gap between its outer wall and the reactor vessel is used to carry off radiolytic gases for recombination in an external catalyst chamber. The central passage of the coolant member defines a reflux condenser passage into which the externally recombined gases are returned and condensed. The large and constant interface between fuel solution and vapor region prevents the formation of large bubbles and minimizes the amount of fuel salt carried off by water vapor, thus making possible higher flux densities, specific powers and power densities.

  14. MULTISTAGE FLUIDIZED BED REACTOR

    Science.gov (United States)

    Jonke, A.A.; Graae, J.E.A.; Levitz, N.M.

    1959-11-01

    A multistage fluidized bed reactor is described in which each of a number of stages is arranged with respect to an associated baffle so that a fluidizing gas flows upward and a granular solid downward through the stages and baffles, whereas the granular solid stopsflowing downward when the flow of fluidizing gas is shut off.

  15. Fusion reactor materials

    Energy Technology Data Exchange (ETDEWEB)

    none,

    1989-01-01

    This paper discuses the following topics on fusion reactor materials: irradiation, facilities, test matrices, and experimental methods; dosimetry, damage parameters, and activation calculations; materials engineering and design requirements; fundamental mechanical behavior; radiation effects; development of structural alloys; solid breeding materials; and ceramics.

  16. Integral Fast Reactor concept

    Energy Technology Data Exchange (ETDEWEB)

    Till, C.E.; Chang, Y.I.

    1986-01-01

    The Integral Fast Reactor (IFR) is an innovative LMR concept, being developed at Argonne National Laboratory, that fully exploits the inherent properties of liquid metal cooling and metallic fuel to achieve breakthroughs in economics and inherent safety. This paper describes key features and potential advantages of the IFR concept, technology development status, fuel cycle economics potential, and future development path.

  17. The First Reactor.

    Science.gov (United States)

    Department of Energy, Washington, DC.

    On December 2, 1942, in a racquet court underneath the West Stands of Stagg Field at the University of Chicago, a team of scientists led by Enrico Fermi created the first controlled, self-sustaining nuclear chain reaction. This updated and revised story of the first reactor (or "pile") is based on postwar interviews (as told to Corbin…

  18. Thermal Reactor Safety

    Energy Technology Data Exchange (ETDEWEB)

    1980-06-01

    Information is presented concerning fire risk and protection; transient thermal-hydraulic analysis and experiments; class 9 accidents and containment; diagnostics and in-service inspection; risk and cost comparison of alternative electric energy sources; fuel behavior and experiments on core cooling in LOCAs; reactor event reporting analysis; equipment qualification; post facts analysis of the TMI-2 accident; and computational methods.

  19. Chromatographic and Related Reactors.

    Science.gov (United States)

    1988-01-07

    special information about effects of surface heteroge- neity in the methanation reaction. Studies of an efficient multicolumn assembly for measuring...of organic basic catalysts such as pyridine and 4-methylpicoline. It was demonstrated that the chromatographic reactor gave special information about...Programmed Reaction to obtain special information about surface heterogeneity in the methanation reaction. Advantages of stopped flow over steady state

  20. New concepts for shaftless recycle reactors

    Energy Technology Data Exchange (ETDEWEB)

    Berty, J.M.; Berty, I.J.

    1987-01-01

    Berty Reaction Engineers, Ltd. (BREL) is developing two new laboratory recycle reactors, the ROTOBERTY and the TURBOBERTY. These new reactors are basically improved versions of the original Berty reactor. To understand why the reactors have the features that they do, it is first necessary to briefly review laboratory reactors in general and specifically the original Berty reactor.

  1. Brazilian multipurpose reactor

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2014-07-01

    The Brazilian Multipurpose Reactor (RMB) Project is an action of the Federal Government, through the Ministry of Science Technology and Innovation (MCTI) and has its execution under the responsibility of the Brazilian National Nuclear Energy Commission (CNEN). Within the CNEN, the project is coordinated by the Research and Development Directorate (DPD) and developed through research units of this board: Institute of Nuclear Energy Research (IPEN); Nuclear Engineering Institute (IEN); Centre for Development of Nuclear Technology (CDTN); Regional Center of Nuclear Sciences (CRCN-NE); and Institute of Radiation Protection and Dosimetry (IRD). The Navy Technological Center in Sao Paulo (CTMSP) and also the participation of other research centers, universities, laboratories and companies in the nuclear sector are important and strategic partnerships. The conceptual design and the safety analysis of the reactor and main facilities, related to nuclear and environmental licensing, are performed by technicians of the research units of DPD / CNEN. The basic design was contracted to engineering companies as INTERTHECNE from Brazil and INVAP from Argentine. The research units from DPD/CNEN are also responsible for the design verification on all engineering documents developed by the contracted companies. The construction and installation should be performed by specific national companies and international partnerships. The Nuclear Reactor RMB will be a open pool type reactor with maximum power of 30 MW and have the OPAL nuclear reactor of 20 MW, built in Australia and designed by INVAP, as reference. The RMB reactor core will have a 5x5 configuration, consisting of 23 elements fuels (EC) of U{sub 3}Si{sub 2} dispersion-type Al having a density of up to 3.5 gU/cm{sup 3} and enrichment of 19.75% by weight of {sup 23{sup 5}}U. Two positions will be available in the core for materials irradiation devices. The main objectives of the RMB Reactor and the other nuclear and radioactive

  2. Modeling Chemical Reactors I: Quiescent Reactors

    CERN Document Server

    Michoski, C E; Schmitz, P G

    2010-01-01

    We introduce a fully generalized quiescent chemical reactor system in arbitrary space $\\vdim =1,2$ or 3, with $n\\in\\mathbb{N}$ chemical constituents $\\alpha_{i}$, where the character of the numerical solution is strongly determined by the relative scaling between the local reactivity of species $\\alpha_{i}$ and the local functional diffusivity $\\mathscr{D}_{ij}(\\alpha)$ of the reaction mixture. We develop an operator time-splitting predictor multi-corrector RK--LDG scheme, and utilize $hp$-adaptivity relying only on the entropy $\\mathscr{S}_{\\mathfrak{R}}$ of the reactive system $\\mathfrak{R}$. This condition preserves these bounded nonlinear entropy functionals as a necessarily enforced stability condition on the coupled system. We apply this scheme to a number of application problems in chemical kinetics; including a difficult classical problem arising in nonequilibrium thermodynamics known as the Belousov-Zhabotinskii reaction where we utilize a concentration-dependent diffusivity tensor $\\mathscr{D}_{ij}(...

  3. Alternative approaches to fusion. [reactor design and reactor physics for Tokamak fusion reactors

    Science.gov (United States)

    Roth, R. J.

    1976-01-01

    The limitations of the Tokamak fusion reactor concept are discussed and various other fusion reactor concepts are considered that employ the containment of thermonuclear plasmas by magnetic fields (i.e., stellarators). Progress made in the containment of plasmas in toroidal devices is reported. Reactor design concepts are illustrated. The possibility of using fusion reactors as a power source in interplanetary space travel and electric power plants is briefly examined.

  4. Programa de desarrollo humano integral ejecutado en estudiantes universitarios

    Directory of Open Access Journals (Sweden)

    Rosalba Bortone Di Muro

    2015-09-01

    Full Text Available El desarrollo personal es un aspecto fundamental en la formación integral e integradora en todos los niveles educativos, por lo que la Orientación como disciplina, tiene un rol fundamental en este sentido. Los programas de prevención y desarrollo según Bisquerra (2004, Sanz (2001 y Álvarez (1994, desde esta perspectiva, apuntan con mucha fuerza a contribuir con el desarrollo del potencial de la persona en todas las etapas de su ciclo evolutivo cubriendo las necesidades propias en cada etapa de la vida personal, social, académica, laboral, entre otras. De allí que, la presente investigación determinó el valor del asesoramiento a través del Programa de Desarrollo Personal ejecutado, previo diagnóstico y diseño, en estudiantes de postgrado en la Universidad Nacional Experimental del Táchira. La muestra estuvo conformada por 251 estudiantes quienes de forma anónima evaluaron el programa, a través de un instrumento contentivo de las diferentes variables. Los resultados indican que el programa puede considerarse efectivo por cuanto la mayoría de los aspectos fueron evaluados en la categoría “excelente”, así tenemos que el logro de los objetivos obtuvo el 74.48%. La información recibida la consideraron con el 72.58%, la motivación del grupo para ejecutar las actividades se ubicó en un 65.31%, la disposición del grupo para realizar las actividades reporta el 69.87%. Los facilitadores fueron también valorados con la categoría “excelente”, en el dominio del tema en un 89.11%, el vocabulario utilizado obtuvo un 89.07%; la disposición para aclarar dudas, obtuvo el 81.27%, y la comunicación con el grupo, fueron evaluados en una proporción del 81.73%. En definitiva, el valor del asesoramiento brindado en cuanto a la administración general del Programa de Desarrollo Personal fue considerado con la categoría excelente con el 74.13%. Algunas de los aspectos a mejorar son los relativos con el ambiente físico en dónde se

  5. Desarrollo Infantil Temprano: lecciones de los programas no formales

    Directory of Open Access Journals (Sweden)

    Mary Eming Young

    2003-05-01

    Full Text Available El artículo empieza mencionando al aporte de las ciencias al conocimiento del desarrollo humano. Se sintetiza el trabajo de Shonkoff/Phillips sobre el tema, resaltándose la importancia de la experiencia temprana y su interacción con la biología para el desarrollo del cerebro. Posteriormente se incursiona en el Desarrollo Infantil Temprano y su significación en los resultados posteriores del niño, destacando algunos factores que inciden en el desarrollo cerebral. Este tema se enlaza con el trabajo de Shore, que compara las teorías del “viejo” y el “nuevo” pensamiento. Seguidamente se resaltan los efectos de las intervenciones tempranas, vinculando el tema al desarrollo del cerebro, y ampliándolo en el capítulo de la competencia social, en el que presentan cifras estadísticas que reflejan en parte las hipótesis. Luego se propone la vinculación de las investigaciones a los programas, y basándose en un trabajo inédito de Kirpal, se enumeran algunas lecciones aprendidas, con énfasis en la necesidad de la participación de la comunidad para generar pertenencia y sostenibilidad en los programas. Después se entra al tema de la sociedad civil y su participación en el desarrollo de los programas, resaltándose las virtudes de las ONGs y el papel que pueden desempeñar en la búsqueda de soluciones a los problemas sociales. Se continúa con la experiencia de programas no formales de educación inicial en América Latina y El Caribe, en los que se destaca la participación de la sociedad civil; luego se detallan los principios que rigen los programas no formales, mediante una matriz en la que se indican determinadas prácticas que corresponden a ciertas metas. Para concluir, se reafirma que el Desarrollo Infantil Temprano es esencial en la lucha contra la pobreza.

  6. Desarrollo Infantil Temprano: lecciones de los programas no formales

    Directory of Open Access Journals (Sweden)

    Mary Eming Young

    2003-01-01

    Full Text Available El artículo empieza mencionando al aporte de las ciencias al conocimiento del desarrollo humano. Se sintetiza el trabajo de Shonkoff/Phillips sobre el tema, resaltándose la importancia de la experiencia temprana y su interacción con la biología para el desarrollo del cerebro. Posteriormente se incursiona en el Desarrollo Infantil Temprano y su significación en los resultados posteriores del niño, destacando algunos factores que inciden en el desarrollo cerebral. Este tema se enlaza con el trabajo de Shore, que compara las teorías del “viejo” y el “nuevo” pensamiento. Seguidamente se resaltan los efectos de las intervenciones tempranas, vinculando el tema al desarrollo del cerebro, y ampliándolo en el capítulo de la competencia social, en el que presentan cifras estadísticas que reflejan en parte las hipótesis. Luego se propone la vinculación de las investigaciones a los programas, y basándose en un trabajo inédito de Kirpal, se enumeran algunas lecciones aprendidas, con énfasis en la necesidad de la participación de la comunidad para generar pertenencia y sostenibilidad en los programas. Después se entra al tema de la sociedad civil y su participación en el desarrollo de los programas, resaltándose las virtudes de las ONGs y el papel que pueden desempeñar en la búsqueda de soluciones a los problemas sociales. Se continúa con la experiencia de programas no formales de educación inicial en América Latina y El Caribe, en los que se destaca la participación de la sociedad civil; luego se detallan los principios que rigen los programas no formales, mediante una matriz en la que se indican determinadas prácticas que corresponden a ciertas metas. Para concluir, se reafirma que el Desarrollo Infantil Temprano es esencial en la lucha contra la pobreza

  7. Reactor monitoring using antineutrino detectors

    Science.gov (United States)

    Bowden, N. S.

    2011-08-01

    Nuclear reactors have served as the antineutrino source for many fundamental physics experiments. The techniques developed by these experiments make it possible to use these weakly interacting particles for a practical purpose. The large flux of antineutrinos that leaves a reactor carries information about two quantities of interest for safeguards: the reactor power and fissile inventory. Measurements made with antineutrino detectors could therefore offer an alternative means for verifying the power history and fissile inventory of a reactor as part of International Atomic Energy Agency (IAEA) and/or other reactor safeguards regimes. Several efforts to develop this monitoring technique are underway worldwide.

  8. Reactor vessel support system. [LMFBR

    Science.gov (United States)

    Golden, M.P.; Holley, J.C.

    1980-05-09

    A reactor vessel support system includes a support ring at the reactor top supported through a box ring on a ledge of the reactor containment. The box ring includes an annular space in the center of its cross-section to reduce heat flow and is keyed to the support ledge to transmit seismic forces from the reactor vessel to the containment structure. A coolant channel is provided at the outside circumference of the support ring to supply coolant gas through the keyways to channels between the reactor vessel and support ledge into the containment space.

  9. Methanogenesis in Thermophilic Biogas Reactors

    DEFF Research Database (Denmark)

    Ahring, Birgitte Kiær

    1995-01-01

    Methanogenesis in thermophilic biogas reactors fed with different wastes is examined. The specific methanogenic activity with acetate or hydrogen as substrate reflected the organic loading of the specific reactor examined. Increasing the loading of thermophilic reactors stabilized the process...... as indicated by a lower concentration of volatile fatty acids in the effluent from the reactors. The specific methanogenic activity in a thermophilic pilot-plant biogas reactor fed with a mixture of cow and pig manure reflected the stability of the reactor. The numbers of methanogens counted by the most...... against Methanothrix soehngenii or Methanothrix CALS-I in any of the thermophilic biogas reactors examined. Studies using 2-14C-labeled acetate showed that at high concentrations (more than approx. 1 mM) acetate was metabolized via the aceticlastic pathway, transforming the methyl-group of acetate...

  10. Compact fusion reactors

    CERN Document Server

    CERN. Geneva

    2015-01-01

    Fusion research is currently to a large extent focused on tokamak (ITER) and inertial confinement (NIF) research. In addition to these large international or national efforts there are private companies performing fusion research using much smaller devices than ITER or NIF. The attempt to achieve fusion energy production through relatively small and compact devices compared to tokamaks decreases the costs and building time of the reactors and this has allowed some private companies to enter the field, like EMC2, General Fusion, Helion Energy, Lawrenceville Plasma Physics and Lockheed Martin. Some of these companies are trying to demonstrate net energy production within the next few years. If they are successful their next step is to attempt to commercialize their technology. In this presentation an overview of compact fusion reactor concepts is given.

  11. MEANS FOR COOLING REACTORS

    Science.gov (United States)

    Wheeler, J.A.

    1957-11-01

    A design of a reactor is presented in which the fuel elements may be immersed in a liquid coolant when desired without the necessity of removing them from the reactor structure. The fuel elements, containing the fissionable material are in plate form and are disposed within spaced slots in a moderator material, such as graphite to form the core. Adjacent the core is a tank containing the liquid coolant. The fuel elements are mounted in spaced relationship on a rotatable shaft which is located between the core and the tank so that by rotation of the shaft the fuel elements may be either inserted in the slots in the core to sustain a chain reaction or immersed in the coolant.

  12. Integrated Microfluidic Reactors.

    Science.gov (United States)

    Lin, Wei-Yu; Wang, Yanju; Wang, Shutao; Tseng, Hsian-Rong

    2009-12-01

    Microfluidic reactors exhibit intrinsic advantages of reduced chemical consumption, safety, high surface-area-to-volume ratios, and improved control over mass and heat transfer superior to the macroscopic reaction setting. In contract to a continuous-flow microfluidic system composed of only a microchannel network, an integrated microfluidic system represents a scalable integration of a microchannel network with functional microfluidic modules, thus enabling the execution and automation of complicated chemical reactions in a single device. In this review, we summarize recent progresses on the development of integrated microfluidics-based chemical reactors for (i) parallel screening of in situ click chemistry libraries, (ii) multistep synthesis of radiolabeled imaging probes for positron emission tomography (PET), (iii) sequential preparation of individually addressable conducting polymer nanowire (CPNW), and (iv) solid-phase synthesis of DNA oligonucleotides. These proof-of-principle demonstrations validate the feasibility and set a solid foundation for exploring a broad application of the integrated microfluidic system.

  13. Reactor Neutrino Spectra

    OpenAIRE

    Hayes, A. C.; Vogel, Petr

    2016-01-01

    We present a review of the antineutrino spectra emitted from reactors. Knowledge of these spectra and their associated uncertainties is crucial for neutrino oscillation studies. The spectra used to date have been determined either by converting measured electron spectra to antineutrino spectra or by summing over all of the thousands of transitions that make up the spectra, using modern databases as input. The uncertainties in the subdominant corrections to β-decay plague both methods, and we ...

  14. REACTOR MODERATOR STRUCTURE

    Science.gov (United States)

    Greenstreet, B.L.

    1963-12-31

    A system for maintaining the alignment of moderator block structures in reactors is presented. Integral restraining grids are placed between each layer of blocks in the moderator structure, at the top of the uppermost layer, and at the bottom of the lowermost layer. Slots are provided in the top and bottom surfaces of the moderator blocks so as to provide a keying action with the grids. The grids are maintained in alignment by vertical guiding members disposed about their peripheries. (AEC)

  15. BOILER-SUPERHEATED REACTOR

    Science.gov (United States)

    Heckman, T.P.

    1961-05-01

    A nuclear power reactor of the type in which a liquid moderator-coolant is transformed by nuclear heating into a vapor that may be used to drive a turbo- generator is described. The core of this reactor comprises a plurality of freely suspended tubular fuel elements, called fuel element trains, within which nonboiling pressurized liquid moderator-coolant is preheated and sprayed through orifices in the walls of the trains against the outer walls thereof to be converted into vapor. Passage of the vapor ovcr other unwetted portions of the outside of the fuel elements causes the steam to be superheated. The moderatorcoolant within the fuel elements remains in the liqUid state, and that between the fuel elements remains substantiaily in the vapor state. A unique liquid neutron-absorber control system is used. Advantages expected from the reactor design include reduced fuel element failure, increased stability of operation, direct response to power demand, and circulation of a minimum amount of liquid moderatorcoolant. (A.G.W.)

  16. The OPAL reactor

    Energy Technology Data Exchange (ETDEWEB)

    Miller, R.; Irwin, T. [Australian Nuclear Science and Technology Organisation, Sydney (Australia); Ordonez, J.P. [INVAP SE, Bariloche (Argentina)

    2007-07-01

    The project to provide a replacement for Australia's HIFAR reactor began with governmental approval in September 1997 and reached its latest milestone with the achievement of the first full power operation of the OPAL reactor in November 2006. OPAL is a pool-type reactor with a thermal power of 20 MW and a fuel enrichment maximum of 20 per cent. This has been a successful project for both ANSTO (Australian Nuclear Science and Technology Organisation) and the contractor INVAP SE. This project was characterised by extensive interaction with the project's stake-holders during project definition and the use of a performance-based turnkey contract which gave the contractor the maximum opportunity to optimise the design to achieve performance and cost effectiveness. The contactor provided significant in-house resources as well as capacity to manage an international team of suppliers and sub-contractors. A key contributor to the project's successful outcomes has been the development and maintenance of an excellent working relationship between ANSTO and INVAP project teams. Commissioning was undertaken in accordance with the IAEA recommended stages. This paper presents the approaches used to define the project requirements, to choose the supplier and to deliver the project. The main results of hot commissioning are reviewed and the problems encountered examined. Operational experience since hot commissioning is also reviewed.

  17. Vengan al "Aula Joven" programa de intervención socioeducativa

    OpenAIRE

    Rivas López, Paula

    2015-01-01

    Treball de Final de Universitari en Intervenció i Mediació Familiar (Pla de 2014). Codi: SBD016. Curs acadèmic 2014-2015 En este trabajo se presenta una propuesta de proyecto de intervención para el programa “Aula Joven” de San Lorenzo, financiado por el Programa Municipal de Absentismo Escolar del Ayuntamiento de Castellón. El objetivo general de dicho proyecto es conseguir un acercamiento entre el propio programa y las familias del alumnado. Estos beneficiarios del programa son alumnos y...

  18. Efectos adversos de los programas de apoyo alimentario en los hogares rurales de Calakmul, Campeche

    OpenAIRE

    Brenda Olvera; Birgit Schmook; Claudia Radel; Dominga Austreberta Nazar Beutelspache

    2017-01-01

    Objetivo: se analizaron los efectos no desea-dos de los apoyos gubernamentales del Pro-grama de Inclusión Social Prospera, Progra-ma de Apoyo Alimentario (PA L), Programa Estratégico para la Seguridad Alimentaria (PESA) y Cocinas Escolares, en la producción de alimentos y en el patrón de consumo. Me-todología. En el año 2015 aplicamos 46 en-cuestas y 32 entrevistas a beneficiarios, cam-pesinos y funcionarios de los programas sociales, en un estudio d...

  19. Programa Interprise: formación intercultural para futuros profesores de Educación Primaria

    OpenAIRE

    Tabuenca Cuevas, María Felicidad; González Báidez, Ana

    2015-01-01

    Este trabajo es fruto de un programa Programa InterPriSe (Intercultural Primary School Education) financiado por la Comisión Europea y parte del Programa Erasmus+ que se llevó a cabo en Patras (Grecia) a finales del año 2014. Docentes y futuros docentes de más de diez países europeos de Educación Primaria que procedían de instituciones académicas y organizaciones no gubernamentales participaron en este proyecto. El objetivo general de este programa fue la creación de una práctica pedagógica i...

  20. Nuclear research reactors in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Cota, Anna Paula Leite; Mesquita, Amir Zacarias, E-mail: aplc@cdtn.b, E-mail: amir@cdtn.b [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)

    2011-07-01

    The rising concerns about global warming and energy security have spurred a revival of interest in nuclear energy, giving birth to a 'nuclear power renaissance' in several countries in the world. Particularly in Brazil, in the recent years, the nuclear power renaissance can be seen in the actions that comprise its nuclear program, summarily the increase of the investments in nuclear research institutes and the government target to design and build the Brazilian Multipurpose research Reactor (BMR). In the last 50 years, Brazilian research reactors have been used for training, for producing radioisotopes to meet demands in industry and nuclear medicine, for miscellaneous irradiation services and for academic research. Moreover, the research reactors are used as laboratories to develop technologies in power reactors, which are evaluated today at around 450 worldwide. In this application, those reactors become more viable in relation to power reactors by the lowest cost, by the operation at low temperatures and, furthermore, by lower demand for nuclear fuel. In Brazil, four research reactors were installed: the IEA-R1 and the MB-01 reactors, both at the Instituto de Pesquisas Energeticas Nucleares (IPEN, Sao Paulo); the Argonauta, at the Instituto de Engenharia Nuclear (IEN, Rio de Janeiro) and the IPR-R1 TRIGA reactor, at the Centro de Desenvolvimento da Tecnologia Nuclear (CDTN, Belo Horizonte). The present paper intends to enumerate the characteristics of these reactors, their utilization and current academic research. Therefore, through this paper, we intend to collaborate on the BMR project. (author)

  1. Nuclear research reactors in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Cota, Anna Paula Leite; Mesquita, Amir Zacarias, E-mail: aplc@cdtn.b, E-mail: amir@cdtn.b [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)

    2011-07-01

    The rising concerns about global warming and energy security have spurred a revival of interest in nuclear energy, giving birth to a 'nuclear power renaissance' in several countries in the world. Particularly in Brazil, in the recent years, the nuclear power renaissance can be seen in the actions that comprise its nuclear program, summarily the increase of the investments in nuclear research institutes and the government target to design and build the Brazilian Multipurpose research Reactor (BMR). In the last 50 years, Brazilian research reactors have been used for training, for producing radioisotopes to meet demands in industry and nuclear medicine, for miscellaneous irradiation services and for academic research. Moreover, the research reactors are used as laboratories to develop technologies in power reactors, which are evaluated today at around 450 worldwide. In this application, those reactors become more viable in relation to power reactors by the lowest cost, by the operation at low temperatures and, furthermore, by lower demand for nuclear fuel. In Brazil, four research reactors were installed: the IEA-R1 and the MB-01 reactors, both at the Instituto de Pesquisas Energeticas Nucleares (IPEN, Sao Paulo); the Argonauta, at the Instituto de Engenharia Nuclear (IEN, Rio de Janeiro) and the IPR-R1 TRIGA reactor, at the Centro de Desenvolvimento da Tecnologia Nuclear (CDTN, Belo Horizonte). The present paper intends to enumerate the characteristics of these reactors, their utilization and current academic research. Therefore, through this paper, we intend to collaborate on the BMR project. (author)

  2. Thermionic Reactor Design Studies

    Energy Technology Data Exchange (ETDEWEB)

    Schock, Alfred

    1994-06-01

    During the 1960's and early 70's the author performed extensive design studies, analyses, and tests aimed at thermionic reactor concepts that differed significantly from those pursued by other investigators. Those studies, like most others under Atomic Energy Commission (AEC and DOE) and the National Aeronautics and Space Administration (NASA) sponsorship, were terminated in the early 1970's. Some of this work was previously published, but much of it was never made available in the open literature. U.S. interest in thermionic reactors resumed in the early 80's, and was greatly intensified by reports about Soviet ground and flight tests in the late 80's. This recent interest resulted in renewed U.S. thermionic reactor development programs, primarily under Department of Defense (DOD) and Department of Energy (DOE) sponsorship. Since most current investigators have not had an opportunity to study all of the author's previous work, a review of the highlights of that work may be of value to them. The present paper describes some of the author's conceptual designs and their rationale, and the special analytical techniques developed to analyze their performance. The basic designs, first published in 1963, are based on single-cell converters, either double-ended diodes extending over the full height of the reactor core or single-ended diodes extending over half the core height. In that respect they are similar to the thermionic fuel elements employed in the Topaz-2 reactor subsequently developed in the Soviet Union, copies of which were recently imported by the U.S. As in the Topaz-2 case, electrically heated steady-state performance tests of the converters are possible before fueling. Where the author's concepts differed from the later Topaz-2 design was in the relative location of the emitter and the collector. Placing the fueled emitter on the outside of the cylindrical diodes permits much higher axial conductances to reduce ohmic

  3. Desarrollo de un Programa de Simulación de Procesos para el Tratamiento de Efluentes Líquidos Development of Simulation Program for Liquid Effluent Treatment

    Directory of Open Access Journals (Sweden)

    Z.M. Niño

    2004-01-01

    Full Text Available Se presenta el desarrollo de un programa para la simulación de procesos asociados al tratamiento de efluentes líquidos. El programa creado, denominado SIMTELUC, utiliza un enfoque modular secuencial para la administración y control del flujo de la información durante la simulación. Fueron desarrollados los siguientes módulos de cálculo: reactor biológico por lodos activados, filtro percolador, contactor biológico rotatorio o biodisco, sedimentador primario, unidad de floculación-coagulación, secador térmico, unidad de desinfección, adsorción sobre carbón activado, precipitación química, espesador de lodos, filtros, unidad por flotación con aire disuelto (DAF y API. Los módulos de cálculo desarrollados fueron validados comparando sus resultados con los obtenidos mediante un programa de simulacion comercial, presentando una desviación menor del 4%. A partir de los resultados obtenidos, se concluye que el programa desarrollado cumple con los objetivos propuestos, entregando buenos resultados, pudiendo ser extendido a la simulación de plantas de tratamiento existentes en la industriaThe objective of this research was to develop a software for the simulation of wastewater treatment processes. The software developed, named SIMTELUC, uses a modular and sequential approach for the management and control of the information flow during the process simulation. The following simulation units were developed: activated sludge reactor, trickling biofilters, rotary biological contactors, sedimentation basins, coagulation-flocculation basins, thermal dryer, chlorination units, activated carbon adsorption, chemical precipitation, sludge composting, filters, dissolved air flotation (DAF and API units. These units were validated, comparing their results with those obtained with a commercial simulation program, obtaining a deviation of less than 4%. It was concluded from the results obtained that the program developed meets the proposed

  4. Transformación de un programa de intervalo fijo de reforzamiento con agua en un procedimiento de beber inducido por el programa

    OpenAIRE

    Jorge A. Ruiz; Carlos A. Bruner

    2005-01-01

    Para determinar si los efectos específicos de las variables que controlan el beber inducido por el programa son ajenos o no al campo del condicionamien-to, en el presente estudio se añadieron una a una la privación de comida, la entrega periódica de comida y la entrega continua de agua a un programa de reforzamiento con agua de intervalo hasta transformar este procedi-miento operante en uno de beber inducido por el programa. En la primera condición experimental tres ratas privadas de agua le...

  5. Programas de desarrollo individual : un caso de dislexia

    OpenAIRE

    1996-01-01

    Se presenta un caso clínico de dislexia evolutiva asociada a un estado afectivo deteriorado. La finalidad de este estudio es demostrar la importancia de la exploración de las funciones básicas y superiores implicadas en la adquisición del aprendizaje, lo cual permite a través del diagnóstico la elaboración de un programa de desarrollo individual adaptado a la problemática planteada. También se pone de manifiesto el efecto negativo que el desequilibrio emocional y afectivo produce sobre la adq...

  6. Sexualidad y universidad: un programa de intervención

    OpenAIRE

    Marchena Consejero, Esperanza; Alcalde Cuevas, C.; García Gallardo, J.; Escalante Marrero, Nuria; Villanego, R.

    2005-01-01

    En esta comunicación describimos un programa de intervención para la prevención de conductas sexuales de riesgo, dirigido a un total de 295 alumnos y alumnas de la Universidad de Cádiz, desarrollado en torno a una “Semana de Educación Sexual”. Durante este periodo se han realizado un conjunto de actividades de formación relacionadas con el SIDA y la sexualidad a través de los libros de texto; charlas–coloquio sobre SIDA y prevención; vídeo-forum; y talleres de formación encaminados al desarro...

  7. Diabetes gestacional e programação fetal

    OpenAIRE

    Soares, Rita Inês Félix

    2014-01-01

    Trabalho final de mestrado integrado em Medicina (Endocrinologia), apresentado á Faculdade de Medicina da Universidade de Coimbra Introdução: A diabetes gestacional é, actualmente, um problema de saúde pública. Sendo um estado patológico, aumenta a incidência de complicações tanto maternas como fetais. A programação fetal representa a oportunidade crucial para uma possível estratégia de prevenção na tentativa de parar a progressão da epidemia crescente da diabetes e outros dist...

  8. Programa de formación para familias

    OpenAIRE

    Gonzalo Pérez, María Nuria

    2014-01-01

    El mundo del siglo XXI se está haciendo tan complejo y diverso que los padres, se sienten a veces impotentes ante la tarea tradicional de educar a sus hijos. Tanto que, a iniciativa de la Asociación de Madres y Padres de nuestro colegio, el Consejo Escolar decidió a principio de curso; entre otros muchos cauces de colaboración familia/centro que tratamos de potenciar; poner en marcha un programa de formación para familias que a continuación se va a desarrollar. La idea básic...

  9. Relevancia del tutor en los programas a distancia

    OpenAIRE

    2005-01-01

    En 1999, la Escuela Superior de Comercio y Administración del Instituto Politécnico Nacional inició un programa mixto (presencial-distancia) en la maestría en administración y desarrollo de la educación (en Tijuana, Morelia y Cancún). Hubo maestros que, sin ser tutores, fungieron como facilitadores. Así que se pensó en la necesidad de tener un modelo tutorial apropiado a posgrado. Se hizo una investigación descriptiva caracterizando a docentes con funciones tutoriales. Se contó con una n=298 ...

  10. Talentmanagement: Concepto general y Programa especial para Universitarios

    OpenAIRE

    Thom, Norbert; García Echevarría, Santiago

    2015-01-01

    Una de las claves fundamentales para el desarrollo económico, de la competitividad y el crecimiento de una economía y de una empresa, la constituye el desarrollo de talento. La búsqueda de Talentos, su desarrollo e integración constituye hoy el factor determinante del éxito de la empresa. Y ello implica tanto la formación en el sistema educativo como el engarce con la realidad empresarial. Los Programas de Trainees, su éxito o fracaso descansa en esta dimensión del Talentmanagement como facto...

  11. Aceptabilidad de los suplementos alimenticios del programa Oportunidades

    OpenAIRE

    Zarco Angel; Mora Gerardo; Pelcastre Blanca; Flores Mario; Bronfman Mario

    2006-01-01

    OBJETIVO: Identificar usos y prácticas culturales para evaluar la aceptabilidad de los suplementos alimenticios del programa Oportunidades. MATERIAL Y MÉTODOS: Estudio etnográfico con entrevistas a profundidad (43) -madres de niños menores de cinco años y mujeres embarazadas y en periodo de lactancia (MEPL)-; informantes clave (9); grupos focales (8) y observación directa en cuatro comunidades del norte, centro, rur y sureste de México. RESULTADOS: El suplemento se prepara en distintas formas...

  12. Eficacia de un Programa de Motivación Laboral

    OpenAIRE

    Suárez Castro, Edilma Marlen; Pontificia Universidad Javeriana; Salazar, Edy; Pontificia Universidad Javeriana

    2011-01-01

    En un hospital de Santafé de Bogotá se realizó la evaluación de la efectividad de un programa de motivación laboral en 19 miembros del personal de enfermería que participaron voluntariamente tanto en el Seminario Alcanza Tu Armonía, como en el proceso investigativo. Los resultados relevantes del estudio fueron los cambios positivos en el desempeño, la satisfacción y la mejoría en el autoconcepto laboral; además, el trabajo adelantado contribuyó con el desarrollo y crecimiento personal y labor...

  13. New reactors for laboratory studies

    Energy Technology Data Exchange (ETDEWEB)

    Berty, J.M.

    1978-02-01

    Recent developments in design of laboratory and bench-scale reactors reflect mostly the developments in reaction engineering; that is the improved understanding of physical and chemical rate limiting processes, their interactions, and their effects on commercial-scale reactor performance. Whether a laboratory reactor is used to study the fundamentals of a commercial process or for pure scientific interest, it is important to know what physical or chemical process is limiting or influencing the rate and selectivity. To clarify this, a definition is required of the regime where physical influences exist, and study the intrinsic kinetics at conditions where physical processes do not affect the rate. Reactors are illustrated whose design was influenced by the above considerations. These reactors produce results which are independent of the reactors in which they were measured, and which can be scaled up with up-to-date reaction engineering techniques.

  14. Conceptos claves en un programa educativo Conceitos chave em um programa educativo Key Concepts in an Educational Program

    Directory of Open Access Journals (Sweden)

    MYRIAM PATRICIA PARDO TORRES

    2010-10-01

    Full Text Available Se presentan los resultados de la revisión de literatura sobre los conceptos comunicación asertiva, afecto y las visiones de enfermería de reciprocidad y simultaneidad como sustento base de un programa educativo de intervención con adolescentes para promover la responsabilidad procreativa. La revisión bibliográfica sistemática tomó como bases de datos Ebsco-Host y Scielo. Conclusiones: la comunicación asertiva es una habilidad social aprendida, que es necesario fortalecer en los programas de salud sexual y reproductiva; el afecto es un elemento motivador para la transmisión y apropiación de conocimientos en educación sexual y reproductiva; la visión de reciprocidad orienta la interacción entre el (la adolescente y la (el enfermera (o componente necesario para una construcción mutua del autocuidado en este ámbito, y la visión de simultaneidad integra el contexto como elemento fundamental en el abordaje de la temática dentro de un programa educativo.O trabalho apresenta os resultados da revisão de literatura sobre os conceitos de comunicação assertiva, carinho e as visões de reciprocidade e simultaneidade na enfermagem como alicerces de um programa educativo de intervenção com adolescentes para promover a responsabilidade procriativa. A revisão bibliográfica sistemática utilizou como bancos de dados Ebsco-Host e Scielo. Conclusões: a comunicação assertiva é uma habilidade social apreendida, que é preciso fortalecer nos programas de saúde sexual e reprodutiva; o carinho é um elemento motivador para a transmissão e apropriação de conhecimentos em educação sexual e reprodutiva; a visão de reciprocidade permite uma interação entre o (a adolescente e a (o enfermeira e é um componente necessário para construir mutuamente o auto-cuidado nesta área, e a visão de simultaneidade integra o contexto como elemento fundamental na aproximação da temática dentro de um programa educativo.The results of the review

  15. Key Concepts in an Educational Program Conceptos claves en un programa educativo Conceitos chave em um programa educativo

    Directory of Open Access Journals (Sweden)

    ARANGO MARTÍNEZ CATHERINE

    2010-10-01

    Full Text Available

    The results of the review are hereby presented on literature regarding assertive communication concepts, feelings and visions of nursing as a reciprocal and a simultaneous support for an educational program based on intervention with adolescents to promote responsible procreation. The present literature review took Ebsco-Host and Scielo as databases.

    Conclusion: Assertive communication is a learned social skill, which needs to be strengthened in as much as programs of sexual and reproductive health are concerned. Affection is a motivator for transmission and acquisition of knowledge in sexual and in reproductive education matters; the vision of reciprocity allows for interaction between the adolescent and the nurse and is a necessary component for mutual construction of self - care in this area, and the vision of simultaneity integrates the context as a key element in addressing the issue within a educational program.

    Se presentan los resultados de la revisión de literatura sobre los conceptos comunicación asertiva, afecto y las visiones de enfermería de reciprocidad y simultaneidad como sustento base de un programa educativo de intervención con adolescentes para promover la responsabilidad procreativa. La revisión bibliográfica sistemática tomó como bases de datos Ebsco-Host y Scielo.

    Conclusiones: la comunicación asertiva es una habilidad social aprendida, que es necesario fortalecer en los programas de salud sexual y reproductiva; el afecto es un elemento motivador para la transmisión y apropiación de conocimientos en educación sexual y reproductiva; la visión de reciprocidad orienta la interacción entre el (la adolescente y la (el enfermera (o componente necesario para una construcción mutua del autocuidado en este ámbito, y la visión de simultaneidad integra el contexto como elemento

  16. Spiral-shaped disinfection reactors

    KAUST Repository

    Ghaffour, Noreddine

    2015-08-20

    This disclosure includes disinfection reactors and processes for the disinfection of water. Some disinfection reactors include a body that defines an inlet, an outlet, and a spiral flow path between the inlet and the outlet, in which the body is configured to receive water and a disinfectant at the inlet such that the water is exposed to the disinfectant as the water flows through the spiral flow path. Also disclosed are processes for disinfecting water in such disinfection reactors.

  17. Turning points in reactor design

    Energy Technology Data Exchange (ETDEWEB)

    Beckjord, E.S.

    1995-09-01

    This article provides some historical aspects on nuclear reactor design, beginning with PWR development for Naval Propulsion and the first commercial application at Yankee Rowe. Five turning points in reactor design and some safety problems associated with them are reviewed: (1) stability of Dresden-1, (2) ECCS, (3) PRA, (4) TMI-2, and (5) advanced passive LWR designs. While the emphasis is on the thermal-hydraulic aspects, the discussion is also about reactor systems.

  18. Acceptability of reactors in space

    Energy Technology Data Exchange (ETDEWEB)

    Buden, D.

    1981-04-01

    Reactors are the key to our future expansion into space. However, there has been some confusion in the public as to whether they are a safe and acceptable technology for use in space. The answer to these questions is explored. The US position is that when reactors are the preferred technical choice, that they can be used safely. In fact, it dies not appear that reactors add measurably to the risk associated with the Space Transportation System.

  19. Hydrogen Production in Fusion Reactors

    OpenAIRE

    Sudo, S.; Tomita, Y.; Yamaguchi, S.; Iiyoshi, A.; Momota, H; Motojima, O.; Okamoto, M.; Ohnishi, M.; Onozuka, M; Uenosono, C.

    1993-01-01

    As one of methods of innovative energy production in fusion reactors without having a conventional turbine-type generator, an efficient use of radiation produced in a fusion reactor with utilizing semiconductor and supplying clean fuel in a form of hydrogen gas are studied. Taking the candidates of reactors such as a toroidal system and an open system for application of the new concepts, the expected efficiency and a concept of plant system are investigated.

  20. Fast reactor programme in India

    Indian Academy of Sciences (India)

    P Chellapandi; P R Vasudeva Rao; Prabhat Kumar

    2015-09-01

    Role of fast breeder reactor (FBR) in the Indian context has been discussed with appropriate justification. The FBR programme since 1985 till 2030 is highlighted focussing on the current status and future direction of fast breeder test reactor (FBTR), prototype fast breeder reactor (PFBR) and FBR-1 and 2. Design and technological challenges of PFBR and design and safety targets with means to achieve the same are the major highlights of this paper.

  1. Neutrino Oscillation Studies with Reactors

    CERN Document Server

    Vogel, Petr; Zhang, Chao

    2015-01-01

    Nuclear reactors are one of the most intense, pure, controllable, cost-effective, and well-understood sources of neutrinos. Reactors have played a major role in the study of neutrino oscillations, a phenomenon that indicates that neutrinos have mass and that neutrino flavors are quantum mechanical mixtures. Over the past several decades reactors were used in the discovery of neutrinos, were crucial in solving the solar neutrino puzzle, and allowed the determination of the smallest mixing angle $\\theta_{13}$. In the near future, reactors will help to determine the neutrino mass hierarchy and to solve the puzzling issue of sterile neutrinos.

  2. Accelerator based fusion reactor

    Science.gov (United States)

    Liu, Keh-Fei; Chao, Alexander Wu

    2017-08-01

    A feasibility study of fusion reactors based on accelerators is carried out. We consider a novel scheme where a beam from the accelerator hits the target plasma on the resonance of the fusion reaction and establish characteristic criteria for a workable reactor. We consider the reactions d+t\\to n+α,d+{{}3}{{H}\\text{e}}\\to p+α , and p+{{}11}B\\to 3α in this study. The critical temperature of the plasma is determined from overcoming the stopping power of the beam with the fusion energy gain. The needed plasma lifetime is determined from the width of the resonance, the beam velocity and the plasma density. We estimate the critical beam flux by balancing the energy of fusion production against the plasma thermo-energy and the loss due to stopping power for the case of an inert plasma. The product of critical flux and plasma lifetime is independent of plasma density and has a weak dependence on temperature. Even though the critical temperatures for these reactions are lower than those for the thermonuclear reactors, the critical flux is in the range of {{10}22}-{{10}24}~\\text{c}{{\\text{m}}-2}~{{\\text{s}}-1} for the plasma density {ρt}={{10}15}~\\text{c}{{\\text{m}}-3} in the case of an inert plasma. Several approaches to control the growth of the two-stream instability are discussed. We have also considered several scenarios for practical implementation which will require further studies. Finally, we consider the case where the injected beam at the resonance energy maintains the plasma temperature and prolongs its lifetime to reach a steady state. The equations for power balance and particle number conservation are given for this case.

  3. Calidad de los programas académicos.

    Directory of Open Access Journals (Sweden)

    Ángela María Duque

    2009-11-01

    Full Text Available Se presenta una mirada global al proceso de autoevaluación y autorregulación con fines a la acreditación del Programa Académico de Odontología de la Facultad de Salud de la Universidad del Valle, según el modelo propuesto por el Consejo Nacional de Acreditación (CNA. Este modelo se fundamenta en el análisis de los siguientes factores: proyecto institucional, procesos académicos, estudiantes y profesores, bienestar institucional, organización, administración y gestión, egresados e impacto sobre el medio y recursos físicos y financieros. Con base en los análisis documentales de la institución y del programa académico y de los diferentes estamentos comprometidos (estudiantes, profesores, directivos, personal no docente, egresados y empleadores, se precisan los aspectos más relevantes que dieron como resultado la expedición del acto de acreditación, mediante Resolución 1650 del 26 de julio de 2001 del Ministerio de Educación Nacional.

  4. El programa de medicina en la Universidad Peruana Cayetano Heredia

    Directory of Open Access Journals (Sweden)

    Manuel Gutiérrez Sierra

    Full Text Available Los autores relatan el desarrollo del programa de estudios de la carrera de medicina en la Universidad Peruana Cayetano Heredia, especialmente en los últimos 15 años, tiempo en que dirigieron el Comité de Currículo. Ellos describen los fundamentos que han guiado el currículo de la carrera desde sus inicios hasta nuestros días; cómo se diseñó y evolucionó el perfil de egreso, así como las principales influencias en su diseño; cómo han evolucionado los procesos de enseñanza, aprendizaje y evaluación del aprendizaje; cómo se ha dado importancia al proceso de selección de estudiantes, y cómo se ha establecido el concepto de crédito académico ligado al trabajo real del estudiante y no solo al tiempo de trabajo presencial. Finalmente, señalan cómo ha mejorado la opinión que docentes y, especialmente, estudiantes tienen del programa, y los aspectos que deben ser mejorados en el futuro.

  5. El programa de mano Metro-Goldwyn-Mayer

    Directory of Open Access Journals (Sweden)

    Dr. James F. Willis García-Talavera

    2002-01-01

    Full Text Available Este es el primero de una serie de artículos que analizan, desde una perspectiva multidisciplinar, la trayectoria de una de las principales productoras y distribuidoras de Hollywood, Metro-Goldwyn-Mayer, durante sus llamados “años dorados” (1931-1941, utilizando el programa de mano como fuente primaria de la investigación. Tras un minucioso estudio, el programa de mano se revela como un peculiar método de publicidad cinematográfica que, rebasando los límites de su función originaria, se puede convertir en modelo de expresión artística, coyuntural elemento propagandístico, archivo visual de imágenes perdidas o auténtico objeto de culto para coleccionistas.ABSTRACT: This is the first of a series of articles which analyze, from an interdisciplinary perspective, the course of one of Hollywood´s main producers and distributors, MGM, during the so-called Golden Years (1931/1941 using the program as a primary source of investigation. After a detailed study, the program reveals itself as a peculiar method of cinema advertising which, exceeding the limits of its original function, can become a model of art expression, structural advertising element, a visual file of lost images or real cult object for collectors.

  6. Aceptabilidad de los suplementos alimenticios del programa Oportunidades

    Directory of Open Access Journals (Sweden)

    Zarco Angel

    2006-01-01

    Full Text Available OBJETIVO: Identificar usos y prácticas culturales para evaluar la aceptabilidad de los suplementos alimenticios del programa Oportunidades. MATERIAL Y MÉTODOS: Estudio etnográfico con entrevistas a profundidad (43 -madres de niños menores de cinco años y mujeres embarazadas y en periodo de lactancia (MEPL-; informantes clave (9; grupos focales (8 y observación directa en cuatro comunidades del norte, centro, rur y sureste de México. RESULTADOS: El suplemento se prepara en distintas formas. Se consumió más en forma líquida que en solución de consistencia espesa. En las primeras ingestas causa vómito, diarrea y náuseas, pero estos malestares se superan posteriormente. Debido a la preferencia por la forma líquida, el suplemento se combina con leche. Entre las MEPL la aceptación fue generalizada. CONCLUSIONES: El suplemento tiende a sustituir a la leche como un alimento en la dieta diaria. Se recomiendan evaluaciones en regiones con prácticas alimenticias culturalmente diferentes y considerar su relación con otros componentes del programa.

  7. Biparticle fluidized bed reactor

    Science.gov (United States)

    Scott, C.D.

    1993-12-14

    A fluidized bed reactor system which utilizes a fluid phase, a retained fluidized primary particulate phase, and a migratory second particulate phase is described. The primary particulate phase is a particle such as a gel bead containing an immobilized biocatalyst. The secondary particulate phase, continuously introduced and removed in either cocurrent or countercurrent mode, acts in a secondary role such as a sorbent to continuously remove a product or by-product constituent from the fluid phase. Introduction and removal of the sorbent phase is accomplished through the use of feed screw mechanisms and multivane slurry valves. 3 figures.

  8. FAST NEUTRONIC REACTOR

    Science.gov (United States)

    Snell, A.H.

    1957-12-01

    This patent relates to a reactor and process for carrying out a controlled fast neutron chain reaction. A cubical reactive mass, weighing at least 920 metric tons, of uranium metal containing predominantly U/sup 238/ and having a U/sup 235/ content of at least 7.63% is assembled and the maximum neutron reproduction ratio is limited to not substantially over 1.01 by insertion and removal of a varying amount of boron, the reactive mass being substantially freed of moderator.

  9. Licensed reactor nuclear safety criteria applicable to DOE reactors

    Energy Technology Data Exchange (ETDEWEB)

    1991-04-01

    The Department of Energy (DOE) Order DOE 5480.6, Safety of Department of Energy-Owned Nuclear Reactors, establishes reactor safety requirements to assure that reactors are sited, designed, constructed, modified, operated, maintained, and decommissioned in a manner that adequately protects health and safety and is in accordance with uniform standards, guides, and codes which are consistent with those applied to comparable licensed reactors. This document identifies nuclear safety criteria applied to NRC (Nuclear Regulatory Commission) licensed reactors. The titles of the chapters and sections of USNRC Regulatory Guide 1.70, Standard Format and Content of Safety Analysis Reports for Nuclear Power Plants, Rev. 3, are used as the format for compiling the NRC criteria applied to the various areas of nuclear safety addressed in a safety analysis report for a nuclear reactor. In each section the criteria are compiled in four groups: (1) Code of Federal Regulations, (2) US NRC Regulatory Guides, SRP Branch Technical Positions and Appendices, (3) Codes and Standards, and (4) Supplemental Information. The degree of application of these criteria to a DOE-owned reactor, consistent with their application to comparable licensed reactors, must be determined by the DOE and DOE contractor.

  10. Programa de Desarrollo Productivo y Competitividad de la Provincia de Mendoza (AR-L1003)

    OpenAIRE

    Gobierno de Mendoza

    2005-01-01

    Presentación que da a conocer el programa de desarrollo productivo del Gobierno de Mendoza: diagnóstico, finalidad, objetivo, fases del programa, infraestructura pública, acceso al financiamiento, capacitación laboral y promoción de clusters.

  11. Programa de Desarrollo Productivo y Competitividad de la Provincia de Mendoza (AR-L1003)

    OpenAIRE

    Gobierno de Mendoza

    2005-01-01

    Presentación que da a conocer el programa de desarrollo productivo del Gobierno de Mendoza: diagnóstico, finalidad, objetivo, fases del programa, infraestructura pública, acceso al financiamiento, capacitación laboral y promoción de clusters.

  12. Los instrumentos de registro y monitoreo institucional como herramientas para la transformación de los programas sociales: Experiencia del Programa de Fortalecimiento Institucional...

    OpenAIRE

    Valeria Llobet; José Antonio Rodríguez

    2007-01-01

    El presente informe recoge la experiencia piloto de un programa de fortalecimiento institucional desarrollado en algunas instituciones dependientes del antiguo Consejo Nacional de Niñez, Adolescencia y Familia de la República Argentina. Desde una perspectiva de derechos, se enfoca en los instrumentos de registro, por un lado y, por otro, busca sustentar las prácticas concretas que se inscriben en las tendencias transformadoras necesarias. La presentación del programa analiza...

  13. Fast Reactor Fuel Type and Reactor Safety Performance

    Energy Technology Data Exchange (ETDEWEB)

    R. Wigeland; J. Cahalan

    2009-09-01

    Fast Reactor Fuel Type and Reactor Safety Performance R. Wigeland , Idaho National Laboratory J. Cahalan, Argonne National Laboratory The sodium-cooled fast neutron reactor is currently being evaluated for the efficient transmutation of the highly-hazardous, long-lived, transuranic elements that are present in spent nuclear fuel. One of the fundamental choices that will be made is the selection of the fuel type for the fast reactor, whether oxide, metal, carbide, nitride, etc. It is likely that a decision on the fuel type will need to be made before many of the related technologies and facilities can be selected, from fuel fabrication to spent fuel reprocessing. A decision on fuel type should consider all impacts on the fast reactor system, including safety. Past work has demonstrated that the choice of fuel type may have a significant impact on the severity of consequences arising from accidents, especially for severe accidents of low probability. In this paper, the response of sodium-cooled fast reactors is discussed for both oxide and metal fuel types, highlighting the similarities and differences in reactor response and accident consequences. Any fast reactor facility must be designed to be able to successfully prevent, mitigate, or accommodate all consequences of potential events, including accidents. This is typically accomplished by using multiple barriers to the release of radiation, including the cladding on the fuel, the intact primary cooling system, and most visibly the reactor containment building. More recently, this has also included the use of ‘inherent safety’ concepts to reduce or eliminate the potential for serious damage in some cases. Past experience with oxide and metal fuel has demonstrated that both fuel types are suitable for use as fuel in a sodium-cooled fast reactor. However, safety analyses for these two fuel types have also shown that there can be substantial differences in accident consequences due to the neutronic and

  14. Reactor Physics Analysis Models for a CANDU Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Hang Bok

    2007-10-15

    Canada deuterium uranium (CANDU) reactor physics analysis is typically performed in three steps. At first, macroscopic cross-sections of the reference lattice is produced by modeling the reference fuel channel. Secondly macroscopic cross-sections of reactivity devices in the reactor are generated. The macroscopic cross-sections of a reactivity device are calculated as incremental cross-sections by subtracting macroscopic cross-sections of a three-dimensional lattice without reactivity device from those of a three-dimensional lattice with a reactivity device. Using the macroscopic cross-sections of the reference lattice and incremental cross-sections of the reactivity devices, reactor physics calculations are performed. This report summarizes input data of typical CANDU reactor physics codes, which can be utilized for the future CANDU reactor physics analysis.

  15. Reactor Physics Analysis Models for a CANDU Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Hang Bok

    2007-10-15

    Canada deuterium uranium (CANDU) reactor physics analysis is typically performed in three steps. At first, macroscopic cross-sections of the reference lattice is produced by modeling the reference fuel channel. Secondly macroscopic cross-sections of reactivity devices in the reactor are generated. The macroscopic cross-sections of a reactivity device are calculated as incremental cross-sections by subtracting macroscopic cross-sections of a three-dimensional lattice without reactivity device from those of a three-dimensional lattice with a reactivity device. Using the macroscopic cross-sections of the reference lattice and incremental cross-sections of the reactivity devices, reactor physics calculations are performed. This report summarizes input data of typical CANDU reactor physics codes, which can be utilized for the future CANDU reactor physics analysis.

  16. España en el programa y la fuerza NAEW&C

    Directory of Open Access Journals (Sweden)

    Mazo Dapena, Angel

    2002-02-01

    Full Text Available Not available

    Con su lectura nos adentramos en el campo de la alerta temprana, iniciado con el programa cooperativo NAEW&C (Nato Airborne Early Warning & Control emprendido en 1978 por la OTAN para dotarse de una capacidad de alerta temprana aerotransportada.
    Este programa ha constituido un éxito en el ámbito de los programas cooperativos y que, políticamente, supone un símbolo real y muy potente de la cohesión y solidaridad existente entre las naciones aliadas. El Ejército del Aire que no ha podido contar con su propia capacidad de alerta temprana aerotransportada, ingresó en dicho programa en diciembre de 1998.
    El autor nos presenta una exposición clara de lo que es, cómo funciona y cómo está estructurada nuestra adhesión al citado programa.

  17. Programas sociais no Brasil: um estudo sobre o programa bolsa família no interior do nordeste brasileiro

    Directory of Open Access Journals (Sweden)

    Clóvis Roberto Zimmermann

    Full Text Available O Programa Bolsa Família continua sendo motivo de divergências no Brasil, seja por suas premissas, seja no que tange à diminuição da pobreza, o valor do benefício, a exigência das condicionalidades, os erros de inclusão, o beneficiamento político, as “portas de saída”, dentre outros. Em virtude disso, o presente artigo se propõe a estudar o Bolsa Família em nível local, pautado na percepção dos beneficiários. Ao final, são discutidos os resultados da pesquisa, indicando a necessidade de maior investimento na qualidade da educação e da saúde pública brasileira. O estudo também sugere que talvez seja o momento de repensar as condicionalidades. Ao invés de controlar os beneficiários, os governos deveriam melhorar a qualidade da saúde e da educação, bem como articular programas complementares, especialmente os de acesso ao trabalho.

  18. Chemical-vapor-deposition reactor

    Science.gov (United States)

    Chern, S.

    1979-01-01

    Reactor utilizes multiple stacked trays compactly arranged in paths of horizontally channeled reactant gas streams. Design allows faster and more efficient deposits of film on substrates, and reduces gas and energy consumption. Lack of dead spots that trap reactive gases reduces reactor purge time.

  19. Thermochemical reactor systems and methods

    Energy Technology Data Exchange (ETDEWEB)

    Lipinski, Wojciech; Davidson, Jane Holloway; Chase, Thomas Richard

    2016-11-29

    Thermochemical reactor systems that may be used to produce a fuel, and methods of using the thermochemical reactor systems, utilizing a reactive cylindrical element, an optional energy transfer cylindrical element, an inlet gas management system, and an outlet gas management system.

  20. Test reactor risk assessment methodology

    Energy Technology Data Exchange (ETDEWEB)

    Jennings, R.H.; Rawlins, J.K.; Stewart, M.E.

    1976-04-01

    A methodology has been developed for the identification of accident initiating events and the fault modeling of systems, including common mode identification, as these methods are applied in overall test reactor risk assessment. The methods are exemplified by a determination of risks to a loss of primary coolant flow in the Engineering Test Reactor.

  1. Studies on a membrane reactor

    Energy Technology Data Exchange (ETDEWEB)

    Mohan, K.; Govind, R.

    1988-10-01

    Simulation is used to evaluate the performance of a catalytic reactor with permeable wall (membrane reactor) in shifting the equilibrium of three reversible reactions (cyclohexane dehydrogenation, hydrogen iodide decomposition, and propylene disproportionation). It is found that the preferred choice of cocurrernt or countercurrent operation is dependent on the physical properties and operating conditions. Methods of enhancing conversion are suggested and temperature effects are discussed.

  2. Thermochemical reactor systems and methods

    Science.gov (United States)

    Lipinski, Wojciech; Davidson, Jane Holloway; Chase, Thomas Richard

    2016-11-29

    Thermochemical reactor systems that may be used to produce a fuel, and methods of using the thermochemical reactor systems, utilizing a reactive cylindrical element, an optional energy transfer cylindrical element, an inlet gas management system, and an outlet gas management system.

  3. Brookhaven leak reactor to close

    CERN Multimedia

    MacIlwain, C

    1999-01-01

    The DOE has announced that the High Flux Beam Reactor at Brookhaven is to close for good. Though the news was not unexpected researchers were angry the decision had been taken before the review to assess the impact of reopening the reactor had been concluded (1 page).

  4. Metallic fuels for advanced reactors

    Science.gov (United States)

    Carmack, W. J.; Porter, D. L.; Chang, Y. I.; Hayes, S. L.; Meyer, M. K.; Burkes, D. E.; Lee, C. B.; Mizuno, T.; Delage, F.; Somers, J.

    2009-07-01

    In the framework of the Generation IV Sodium Fast Reactor Program, the Advanced Fuel Project has conducted an evaluation of the available fuel systems supporting future sodium cooled fast reactors. This paper presents an evaluation of metallic alloy fuels. Early US fast reactor developers originally favored metal alloy fuel due to its high fissile density and compatibility with sodium. The goal of fast reactor fuel development programs is to develop and qualify a nuclear fuel system that performs all of the functions of a conventional fast spectrum nuclear fuel while destroying recycled actinides. This will provide a mechanism for closure of the nuclear fuel cycle. Metal fuels are candidates for this application, based on documented performance of metallic fast reactor fuels and the early results of tests currently being conducted in US and international transmutation fuel development programs.

  5. A model of reactor kinetics

    Energy Technology Data Exchange (ETDEWEB)

    Thompson, A.S.; Thompson, B.R.

    1988-09-01

    The analytical model of nuclear reactor transients, incorporating both mechanical and nuclear effects, simulates reactor kinetics. Linear analysis shows the stability borderline for small power perturbations. In a stable system, initial power disturbances die out with time. With an unstable combination of nuclear and mechanical characteristics, initial disturbances persist and may increase with time. With large instability, oscillations of great magnitude occur. Stability requirements set limits on the power density at which particular reactors can operate. The limiting power density depends largely on the product of two terms: the fraction of delayed neutrons and the frictional damping of vibratory motion in reactor core components. As the fraction of delayed neutrons is essentially fixed, mechanical damping largely determines the maximum power density. A computer program, based on the analytical model, calculates and plots reactor power as a nonlinear function of time in response to assigned values of mechanical and nuclear characteristics.

  6. Engineering reactors for catalytic reactions

    Indian Academy of Sciences (India)

    Vivek V Ranade

    2014-03-01

    Catalytic reactions are ubiquitous in chemical and allied industries. A homogeneous or heterogeneous catalyst which provides an alternative route of reaction with lower activation energy and better control on selectivity can make substantial impact on process viability and economics. Extensive studies have been conducted to establish sound basis for design and engineering of reactors for practising such catalytic reactions and for realizing improvements in reactor performance. In this article, application of recent (and not so recent) developments in engineering reactors for catalytic reactions is discussed. Some examples where performance enhancement was realized by catalyst design, appropriate choice of reactor, better injection and dispersion strategies and recent advances in process intensification/ multifunctional reactors are discussed to illustrate the approach.

  7. Unsteady processes in catalytic reactors

    Energy Technology Data Exchange (ETDEWEB)

    Matros, Yu.Sh.

    1985-01-01

    In recent years a realization has occurred that reaction and reactor dynamics must be considered when designing and operating catalytic reactors. In this book, the author has focussed on both the processes occurring on individual porous-catalyst particles as well as the phenomena displayed by collections of these particles in fixed-bed reactors. The major topics discussed include the effects of unsteady-state heat and mass transfer, the influence of inhomogeneities and stagnant regions in fixed beds, and reactor operation during forced cycling of operating conditions. Despite the title of the book, attention is also paid to the determination of the number and stability of fixed-bed steady states, with the aim of describing the possibility of controlling reactors at unstable steady states. However, this development is somewhat dated, given the recent literature on multiplicity phenomena and process control.

  8. Antineutrino Monitoring of Thorium Reactors

    CERN Document Server

    Akindele, Oluwatomi A; Norman, Eric B

    2015-01-01

    Various groups have demonstrated that antineutrino monitoring can be successful in assessing the plutonium content in water-cooled nuclear reactors for nonproliferation applications. New reactor designs and concepts incorporate nontraditional fuels types and chemistry. Understanding how these properties affect the antineutrino emission from a reactor can extend the applicability of antineutrino monitoring.Thorium molten salt reactors (MSR) breed U-233, that if diverted constitute an IAEA direct use material. The antineutrino spectrum from the fission of U-233 has been determined, the feasibility of detecting the diversion of a significant quantity, 8 kg of U-233, within the IAEA timeliness goal of 30 days has been evaluated. The antineutrino emission from a thorium reactor operating under normal conditions is compared to a diversion scenario at a 25 meter standoff by evaluating the daily antineutrino count rate and the energy spectrum of the detected antineutrinos. It was found that the diversion of a signifi...

  9. El proceso evaluativo en programas con modalidad innovadora

    Directory of Open Access Journals (Sweden)

    Martínez de Acosta Carmen H.

    1999-12-01

    Full Text Available

    This study has an exploratory, descriptive, categoric design by which a content analysis was done in order to identified and categorizes different quantitative and qualitative indicators for the evaluation of Master' s Program in an innovative modality. The following categories where proposed: organizational, curricular, and professional profile. The study was, done with an integrate framework in which it is an expectation that the evaluation helps in the decision making process. The sample selection was done by convenience and it included 10 national and 5 international academic programs at Specialization and Magister level, all of them in innovative modalities. The results reflected 5 categories and 34 indicators for the evaluation of the organizational component; 13 categories and 57 indicators for the evaluation of the curricular component; and 5 categories and 26 indicators for the evaluation of the occupational component. As a final result, all of the indicators where Iinked together in an integrated evaluation proposal in which the categories and indicators are shown as well as the need of implementation by theconstruction of an evaluation process with a critical, participate and plural approach.

    El estudio corresponde a un diseño de tipo exploratorio, descriptivo, categórico. Mediante el análisis de contenido se identificaron y categorizaron diferentes indicadores cuantitativos y cualitativos para la evaluación de los componentes organizacional, curricular y de desempeño del programa de maestría, en modalidad innovadora dentro del marco de una conceptualización integral en la cual se espera que el proceso evaluativo apoye la toma de decisiones. De manera intencional, la muestra seleccionó diez programas académicos nacionales y cinco internacionales que ofertan programas a nivel de especialización y maestría en modalidades innovadoras. Los resultados arrojaron cinco categorías y treinta y cuatro indicadores para el

  10. Propuesta de programa educativo sobre enfermedades del cuello uterino

    Directory of Open Access Journals (Sweden)

    Grisel Mariela Mass Basulto

    2011-12-01

    Full Text Available Fundamento: El cáncer ginecológico está entre las más frecuentes causas de muerte en la población femenina. En Cuba, el diagnóstico precoz de tal afección está entre los programas priorizados del Sistema de Salud Pública; pero también es necesario enfatizar en la prevención, que puede lograse, sobre todo, desde la atención primaria de salud, mediante la implementación de programas educativos. Objetivo: Diseñar un programa educativo sobre afecciones del cuello uterino. Métodos: Estudio descriptivo y retrospectivo, en el período comprendido del 1 de enero de 2008 al 1 de enero de 2009. Se analizaron variables como edad, escolaridad, primeras relaciones sexuales, número de partos, número de compañeros sexuales, uso de anticonceptivo, antecedentes de infecciones de transmisión sexual, hábitos tóxicos y nivel de conocimiento. Se aplicó el criterio de expertos para la validación de la propuesta educativa. Resultados: La mayoría de las mujeres tuvieron relaciones sexuales precoces, cuatro o más compañeros sexuales y eran fumadoras, mientras que el total de ellas había presentado alguna vez infecciones vaginales. El nivel de conocimiento que predominó fue regular. Conclusiones: Es evidente que en la población estudiada se concentran varios factores de riesgo para el cáncer de cuello uterino. El Programa Educativo sobre enfermedades del cuello uterino, fue validado mediante criterio de expertos, los cuales coincidieron en que tiene gran actualidad científica, congruencia interna y en que favorece el proceso de preparación de la mujer para evitar ese tipo de enfermedades.A Proposal for an Educational Program on Cervical DiseaseBackground: Gynecologic cancer is among the most frequent causes of death in women. In Cuba, early diagnosis of this condition is among the prioritized programs of the Public Health System, but it is also necessary to emphasize on prevention. This can be achieved especially in the primary health care

  11. ESCREVENDO CARTAS PARA UM PROGRAMA DE TV: CARTAS NA CONTEMPORANEIDADE

    OpenAIRE

    Castro, Ana Caroline Silva de

    2009-01-01

    As cartas são uma das formas de comunicação a distância mais antigas de que se tem notícia. Além disso, há séculos são feitos tratados e estudos de como as cartas são e de como devem ser escritas. Este estudo enfoca as cartas enviadas ao programa televisivo Globo Rural, da TV Globo no ano de 2005, data de seu 25º aniversário. Em um primeiro momento, através de um banco de dados, composto por 418 cartas, delineou-se a identidade e as demandas dos telespectadores que escreveram ao program...

  12. PRONCOES: PROGRAMA DE NEGOCIACIÓN DEL CONFLICTO ESCOLAR

    Directory of Open Access Journals (Sweden)

    Sol María Juárez

    2012-05-01

    Full Text Available PRONCOES is a program of negotiation of the school conflict offered to provide a contribution as an alternative to working for the minimization of violence in schools that currently exists. It is offered with a start date of the school year and no date of completion because the process of formation and development of social skills is permanent. PRONCOES es un Programa de Negociación del Conflicto Escolar que se ofrece para brindar un aporte como alternativa de trabajo para la minimización de la violencia escolar que en la actualidad se vive. Está ofrecido con una fecha de inicio del año escolar y un tope que no tiene culminación por cuanto el proceso de formación y desarrollo de las habilidades sociales es permanente.

  13. Novi Kolizej v Ljubljani: vprašanja programa

    Directory of Open Access Journals (Sweden)

    Lučka Ažman Momirski

    2005-01-01

    Full Text Available Razprava o Novem Kolizeju v Ljubljani je jedro arhitekturne razprave na slovenski sceni v drugi polovici leta 2004 in prvi polovici leta 2005. V diskusiji so bili razčlenjeni številni problemi (od lokacije do kakovosti oblikovanja projekta, ne pa tudi vprašanja, povezana s kulturo in njenim razvojem v mestu, obravnavo kulturnih vprašanj v urbanizmu in vplivom na mestno javno življenje. Predpostavko, da tako razpis natečaja kot tudi sami projekti niso rezultat resne analize urbanističnega načrtovanja v mestu Ljubljana in da se poskuša celotna strokovna pozornost urbanističnega načrtovanja osredotočiti na središče mesta, namesto da bi v razpravah, analizah in težnjah obravnavali kot problem mesto v celoti, se potrjuje tudi pri problematični opredelitvi programa Novega Kolizeja.

  14. Licensed reactor nuclear safety criteria applicable to DOE reactors

    Energy Technology Data Exchange (ETDEWEB)

    1993-11-01

    This document is a compilation and source list of nuclear safety criteria that the Nuclear Regulatory Commission (NRC) applies to licensed reactors; it can be used by DOE and DOE contractors to identify NRC criteria to be evaluated for application to the DOE reactors under their cognizance. The criteria listed are those that are applied to the areas of nuclear safety addressed in the safety analysis report of a licensed reactor. They are derived from federal regulations, USNRC regulatory guides, Standard Review Plan (SRP) branch technical positions and appendices, and industry codes and standards.

  15. University Reactor Conversion Lessons Learned Workshop for Purdue University Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Eric C. Woolstenhulme; Dana M. Hewit

    2008-09-01

    The Department of Energy’s Idaho National Laboratory, under its programmatic responsibility for managing the University Research Reactor Conversions, has completed the conversion of the reactor at Purdue University Reactor. With this work completed and in anticipation of other impending conversion projects, the INL convened and engaged the project participants in a structured discussion to capture the lessons learned. The lessons learned process has allowed us to capture gaps, opportunities, and good practices, drawing from the project team’s experiences. These lessons will be used to raise the standard of excellence, effectiveness, and efficiency in all future conversion projects.

  16. Neutronic Reactor Shield

    Science.gov (United States)

    Fermi, Enrico; Zinn, Walter H.

    The argument of the present Patent is a radiation shield suitable for protection of personnel from both gamma rays and neutrons. Such a shield from dangerous radiations is achieved to the best by the combined action of a neutron slowing material (a moderator) and a neutron absorbing material. Hydrogen is particularly effective for this shield since it is a good absorber of slow neutrons and a good moderator of fast neutrons. The neutrons slowed down by hydrogen may, then, be absorbed by other materials such as boron, cadmium, gadolinium, samarium or steel. Steel is particularly convenient for the purpose, given its effectiveness in absorbing also the gamma rays from the reactor (both primary gamma rays and secondary ones produced by the moderation of neutrons). In particular, in the present Patent a shield is described, made of alternate layers of steel and Masonite (an hydrolized ligno-cellulose material). The object of the present Patent is not discussed in any other published paper.

  17. Neutrino Experiments at Reactors

    Science.gov (United States)

    Reines, F.; Gurr, H. S.; Jenkins, T. L.; Munsee, J. H.

    1968-09-09

    A description is given of the electron-antineutrino program using a large fission reactor. A search has been made for a neutral weak interaction via the reaction (electron antineutrino + d .> p + n + electron antineutrino), the reaction (electron antineutrino + d .> n + n + e{sup +}) has now been detected, and an effort is underway to observe the elastic scattering reaction (electron antineutrino + e{sup -} .> electron antineutrino + e{sup -}) as well as to measure more precisely the reaction (electron antineutrino + p .> n + e{sup+}). The upper limit on the elastic scattering reaction which we have obtained with our large composite NaI, plastic, liquid scintillation detector is now about 50 times the predicted value.

  18. Reactor service life extension program

    Energy Technology Data Exchange (ETDEWEB)

    Caskey, G.R.; Sindelar, R.L.; Ondrejcin, R.S.; Baumann, E.W.

    1990-12-31

    A review of the Savannah River Site production reactor systems was initiated in 1980 and led to implementation of the Reactor Materials Program in 1984 to assess reactor safety and reactor service life. The program evaluated performance of the reactor tanks, primary coolant piping, and thermal shields, components of welded construction that were fabricated from Type 304 stainless steel. The structural integrity analysis of the primary coolant system has shown that the pressure boundary is not susceptible to gross rupture, including a double ended guillotine break or equivalent large area bank. Residual service life is potentially limited by two material degradation modes, irradiation damage and intergranular stress corrosion cracking. Analysis of the structural integrity of the tanks and piping has shown that continued safe operation of the reactors for several additional decades is not limited by the material performance of the primary coolant system. Although irradiation damage has not degraded material behavior to an unacceptable level, past experience has revealed serious difficulties with repair welding on irradiated stainless steel. Stress corrosion can be mitigated by newly identified limits on impurity concentrations in the coolant water and by stress mitigation of weld residual stresses. Work continues in several areas: the effects of helium on mechanical behavior of irradiated stainless steel; improved weld methods for piping and the reactor tanks; and a surveillance program to track irradiation effects on the tank walls.

  19. Reactor service life extension program

    Energy Technology Data Exchange (ETDEWEB)

    Caskey, G.R.; Sindelar, R.L.; Ondrejcin, R.S.; Baumann, E.W.

    1990-01-01

    A review of the Savannah River Site production reactor systems was initiated in 1980 and led to implementation of the Reactor Materials Program in 1984 to assess reactor safety and reactor service life. The program evaluated performance of the reactor tanks, primary coolant piping, and thermal shields, components of welded construction that were fabricated from Type 304 stainless steel. The structural integrity analysis of the primary coolant system has shown that the pressure boundary is not susceptible to gross rupture, including a double ended guillotine break or equivalent large area bank. Residual service life is potentially limited by two material degradation modes, irradiation damage and intergranular stress corrosion cracking. Analysis of the structural integrity of the tanks and piping has shown that continued safe operation of the reactors for several additional decades is not limited by the material performance of the primary coolant system. Although irradiation damage has not degraded material behavior to an unacceptable level, past experience has revealed serious difficulties with repair welding on irradiated stainless steel. Stress corrosion can be mitigated by newly identified limits on impurity concentrations in the coolant water and by stress mitigation of weld residual stresses. Work continues in several areas: the effects of helium on mechanical behavior of irradiated stainless steel; improved weld methods for piping and the reactor tanks; and a surveillance program to track irradiation effects on the tank walls.

  20. Assessment of torsatrons as reactors

    Energy Technology Data Exchange (ETDEWEB)

    Lyon, J.F. (Oak Ridge National Lab., TN (United States)); Painter, S.L. (Australian National Univ., Canberra, ACT (Australia))

    1992-12-01

    Stellarators have significant operational advantages over tokamaks as ignited steady-state reactors because stellarators have no dangerous disruptions and no need for continuous current drive or power recirculated to the plasma, both easing the first wall, blanket, and shield design; less severe constraints on the plasma parameters and profiles; and better access for maintenance. This study shows that a reactor based on the torsatron configuration (a stellarator variant) could also have up to double the mass utilization efficiency (MUE) and a significantly lower cost of electricity (COE) than a conventional tokamak reactor (ARIES-I) for a range of assumptions. Torsatron reactors can have much smaller coil systems than tokamak reactors because the coils are closer to the plasma and they have a smaller cross section (higher average current density because of the lower magnetic field). The reactor optimization approach and the costing and component models are those used in the current stage of the ARIES-I tokamak reactor study. Typical reactor parameters for a 1-GW(e) Compact Torsatron reactor example are major radius R[sub 0] = 6.6-8.8 m, on-axis magnetic field B[sup 0] = 4.8-7.5 T, B[sub max] (on coils) = 16 T, MUE 140-210 kW(e)/tonne, and COE (in constant 1990 dollars) = 67-79 mill/kW(e)h. The results are relatively sensitive to assumptions on the level of confinement improvement and the blanket thickness under the inboard half of the helical windings but relatively insensitive to other assumptions.

  1. Entrenamiento inicial y conducta en estado estable, en un programa de intervalo fijo

    Directory of Open Access Journals (Sweden)

    Florente López

    1989-01-01

    Full Text Available Cuatro grupos de cuatro ratas cada uno fueron sometidas a un programa Intervalo fijo 60-seg después de experimentar diferentes procedimientos de pre-entrenamiento. Un grupo fue inicialmente sometido durante 20 sesiones a un programa de reforzamiento de Tiempo Fijo 60-seg, con la palanca operativa disponible de manera contínua. Un segundo grupo fué sometido durante 15 sesiones al mismo programa que el grupo anterior, pero la palanca de respuesta no estuvo disponible en ningún momento. Un tercer grupo experimentó 15 sesiones en un programa de reforzamiento continuo. Finalmente, el cuarto grupo experimentó 15 reforzadores de acuerdo a un programa de reforzamiento contínuo durante la única primera sesión de pre-entrenamiento. Los grupos produjeron dos patrones de resultados en el programa de intervalo fijo. Los grupos que fueron sometidos al programa de tiempo fijo produjeron una mayor variabilidad en la distribución de las pausas posreforzamiento, un patrón irregular de respuestas y pocas respuestas por reforzamiento. Los grupos sometidos al programa de reforzamiento continuo tendieron a producir distribuciones de la pausa posreforzamiento más estrechas y simétricas, un patrón de respuestas pausa-carrera y un mayor número de respuestas por reforzamiento. Estos resultados se discuten en términos de, una relación previamente observada entre el número de respuestas y el tamaño de la pausa posreforzamiento. Asimismo, se discuten las implicaciones del experimento respecto de las diferencias entre sujetos y entre experimentos y se sugiere un análisis molecular de la variabilidad a fin de lograr una mejor comprensión del patrón de respuesta más común generado por los programas de intervalo fijo

  2. Safety of VVER-440 reactors

    CERN Document Server

    Slugen, Vladimir

    2011-01-01

    Safety of VVER-440 Reactors endeavours to promote an increase in the safety of VVER-440 nuclear reactors via the improvement of fission products limitation systems and the implementation of special non-destructive spectroscopic methods for materials testing. All theoretical and experimental studies performed the by author over the last 25 years have been undertaken with the aim of improving VVER-440 defence in depth, which is one of the most important principle for ensuring safety in nuclear power plants. Safety of VVER-440 Reactors is focused on the barrier system through which the safety pri

  3. Random processes in nuclear reactors

    CERN Document Server

    Williams, M M R

    1974-01-01

    Random Processes in Nuclear Reactors describes the problems that a nuclear engineer may meet which involve random fluctuations and sets out in detail how they may be interpreted in terms of various models of the reactor system. Chapters set out to discuss topics on the origins of random processes and sources; the general technique to zero-power problems and bring out the basic effect of fission, and fluctuations in the lifetime of neutrons, on the measured response; the interpretation of power reactor noise; and associated problems connected with mechanical, hydraulic and thermal noise sources

  4. Reactor neutrons in nuclear astrophysics

    Science.gov (United States)

    Reifarth, René; Glorius, Jan; Göbel, Kathrin; Heftrich, Tanja; Jentschel, Michael; Jurado, Beatriz; Käppeler, Franz; Köster, Ulli; Langer, Christoph; Litvinov, Yuri A.; Weigand, Mario

    2017-09-01

    The huge neutron fluxes offer the possibility to use research reactors to produce isotopes of interest, which can be investigated afterwards. An example is the half-lives of long-lived isotopes like 129I. A direct usage of reactor neutrons in the astrophysical energy regime is only possible, if the corresponding ions are not at rest in the laboratory frame. The combination of an ion storage ring with a reactor and a neutron guide could open the path to direct measurements of neutron-induced cross sections on short-lived radioactive isotopes in the astrophysically interesting energy regime.

  5. Concept for LEU Burst Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Klein, Steven Karl [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Kimpland, Robert Herbert [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-03-07

    Design and performance of a proposed LEU burst reactor are sketched. Salient conclusions reached are the following: size would be ~1,500 kg or greater, depending on the size of the central cavity; internal stresses during burst require split rings for relief; the reactor would likely require multiple control and safety rods for fine control; the energy spectrum would be comparable to that of HEU machines; and burst yields and steady-state power levels will be significantly greater in an LEU reactor.

  6. Nuclear reactor downcomer flow deflector

    Energy Technology Data Exchange (ETDEWEB)

    Gilmore, Charles B. (Greensburg, PA); Altman, David A. (Pittsburgh, PA); Singleton, Norman R. (Murrysville, PA)

    2011-02-15

    A nuclear reactor having a coolant flow deflector secured to a reactor core barrel in line with a coolant inlet nozzle. The flow deflector redirects incoming coolant down an annulus between the core barrel and the reactor vessel. The deflector has a main body with a front side facing the fluid inlet nozzle and a rear side facing the core barrel. The rear side of the main body has at least one protrusion secured to the core barrel so that a gap exists between the rear side of the main body adjacent the protrusion and the core barrel. Preferably, the protrusion is a relief that circumscribes the rear side of the main body.

  7. Fuel Fabrication and Nuclear Reactors

    Energy Technology Data Exchange (ETDEWEB)

    Karpius, Peter Joseph [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-02-02

    The uranium from the enrichment plant is still in the form of UF6. UF6 is not suitable for use in a reactor due to its highly corrosive chemistry as well as its phase diagram. UF6 is converted into UO2 fuel pellets, which are in turn placed in fuel rods and assemblies. Reactor designs are variable in moderators, coolants, fuel, performance etc.The dream of energy ‘too-cheap to meter’ is no more, and now the nuclear power industry is pushing ahead with advanced reactor designs.

  8. Programa de triagem Neonatal para hemoglobinopatias em Dourados, MS: uma análise

    OpenAIRE

    Souza,Renata A. Volpe de; Pratesi,Riccardo; Fonseca,Silvana F.

    2010-01-01

    Embora estejam bem definidos os benefícios da implantação do programa de triagem neonatal para hemoglobinopatias, não são raros os estudos que apontam falhas nesses programas. Este estudo teve como objetivo avaliar o programa de triagem neonatal para hemoglobinopatias no município de Dourados, estado do Mato Grosso do Sul (MS). Foram entrevistadas, através da aplicação de formulários, 32 famílias cujos filhos foram identificados como portadores de hemoglobinopatias, durante a triagem neonatal...

  9. Programas de ayuda alimentaria en México, cobertura y focalización

    OpenAIRE

    Ma. del Carmen Morales-Ruán; Teresa Shamah-Levy; Juan Ángel Rivera-Dommarco; Verónica Mundo-Rosas; Lucía Cuevas-Nasu; Martín Romero-Martínez; Salvador Villalpando

    2013-01-01

    Objetivo. Describir la distribución de los programas de ayuda alimentaria en México. Material y métodos. Se incluyó información de 36 150 hogares de la Encuesta Nacional de Salud y Nutrición 2012. Se observó la distribución de los programas en los hogares de acuerdo con características como tipo de localidad, región, etnicidad, nivel socioeconómico y estado de nutrición. Resultados. A nivel nacional, los programas de ayuda alimentaria con mayor cobertura son Oportunidades (18.8%), Liconsa (9....

  10. Programa Desarrollo, seguridad y paz DESEPAZ de la ciudad de Cali

    OpenAIRE

    1999-01-01

    Este documento examina el tema de la prevención de la violencia y la seguridad ciudadana en la ciudad de Cali, Colombia a partir de la implementación del programa DESEPAZ. El Programa fue el resultado de la promesa hecha por el autor del presente trabajo durante la campaña electoral para obtener la Alcaldía de Cali, de colocar la primera prioridad en la recuperación de la paz ciudadana. Fue presentado en "Programas Municipales para la prevención y atención de la violencia", para el Banco Inte...

  11. Programa de mentoría en la Facultad de Ciencias de la Universidad de Alicante

    OpenAIRE

    2014-01-01

    Un programa de mentoría es un proceso a través del cual, una persona con mayores conocimientos y experiencia en un determinado campo (el mentor) enseña, aconseja, guía y ayuda a otra (el mentorizado) en el aprendizaje, desarrollo de habilidades y mejora de actitudes relacionadas con dicho campo. El programa de mentoría que desarrollan la mayoría de universidades españolas es un programa educativo que trata de favorecer a los estudiantes de nuevo ingreso (mentorizados) su adaptación al entorno...

  12. A Polêmica do Aborto e o 3º Programa Nacional de Direitos Humanos

    OpenAIRE

    Naara Luna

    2014-01-01

    El 3er Programa Nacional de Derechos Humanos generó una gran polémica respecto a los programas anteriores al proponer la aprobación del proyecto que descriminaliza el aborto "al considerar la autonomía de las mujeres para decidir sobre sus cuerpos". El artículo hace un análisis antropológico de este debate a partir de una combinación de tres tipos de fuentes: una investigación documental que busca comparar el enfoque del programa actual con los anteriores, el rastreo del material de la prensa...

  13. Nuclear reactor PBMR and cogeneration; Reactor nuclear PBMR y cogeneracion

    Energy Technology Data Exchange (ETDEWEB)

    Ramirez S, J. R.; Alonso V, G., E-mail: ramon.ramirez@inin.gob.mx [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2013-10-15

    In recent years the nuclear reactor designs for the electricity generation have increased their costs, so that at the moment costs are managed of around the 5000 US D for installed kw, reason for which a big nuclear plant requires of investments of the order of billions of dollars, the designed reactors as modular of low power seek to lighten the initial investment of a big reactor dividing the power in parts and dividing in modules the components to lower the production costs, this way it can begin to build a module and finished this to build other, differing the long term investment, getting less risk therefore in the investment. On the other hand the reactors of low power can be very useful in regions where is difficult to have access to the electric net being able to take advantage of the thermal energy of the reactor to feed other processes like the water desalination or the vapor generation for the processes industry like the petrochemical, or even more the possible hydrogen production to be used as fuel. In this work the possibility to generate vapor of high quality for the petrochemical industry is described using a spheres bed reactor of high temperature. (Author)

  14. Breeder Reactors, Understanding the Atom Series.

    Science.gov (United States)

    Mitchell, Walter, III; Turner, Stanley E.

    The theory of breeder reactors in relationship to a discussion of fission is presented. Different kinds of reactors are characterized by the cooling fluids used, such as liquid metal, gas, and molten salt. The historical development of breeder reactors over the past twenty-five years includes specific examples of reactors. The location and a brief…

  15. Evolution of the tandem mirror reactor concept

    Energy Technology Data Exchange (ETDEWEB)

    Carlson, G.A.; Logan, B.G.

    1982-03-09

    We discuss the evolution of the tandem mirror reactor concept from the original conceptual reactor design (1977) through the first application of the thermal barrier concept to a reactor design (1979) to the beginning of the Mirror Advanced Reactor Study (1982).

  16. FASTER Test Reactor Preconceptual Design Report

    Energy Technology Data Exchange (ETDEWEB)

    Grandy, C. [Argonne National Lab. (ANL), Argonne, IL (United States); Belch, H. [Argonne National Lab. (ANL), Argonne, IL (United States); Brunett, A. J. [Argonne National Lab. (ANL), Argonne, IL (United States); Heidet, F. [Argonne National Lab. (ANL), Argonne, IL (United States); Hill, R. [Argonne National Lab. (ANL), Argonne, IL (United States); Hoffman, E. [Argonne National Lab. (ANL), Argonne, IL (United States); Jin, E. [Argonne National Lab. (ANL), Argonne, IL (United States); Mohamed, W. [Argonne National Lab. (ANL), Argonne, IL (United States); Moisseytsev, A. [Argonne National Lab. (ANL), Argonne, IL (United States); Passerini, S. [Argonne National Lab. (ANL), Argonne, IL (United States); Sienicki, J. [Argonne National Lab. (ANL), Argonne, IL (United States); Sumner, T. [Argonne National Lab. (ANL), Argonne, IL (United States); Vilim, R. [Argonne National Lab. (ANL), Argonne, IL (United States); Hayes, S. [Argonne National Lab. (ANL), Argonne, IL (United States)

    2016-03-31

    The FASTER test reactor plant is a sodium-cooled fast spectrum test reactor that provides high levels of fast and thermal neutron flux for scientific research and development. The 120MWe FASTER reactor plant has a superheated steam power conversion system which provides electrical power to a local grid allowing for recovery of operating costs for the reactor plant.

  17. FASTER test reactor preconceptual design report summary

    Energy Technology Data Exchange (ETDEWEB)

    Grandy, C. [Argonne National Lab. (ANL), Argonne, IL (United States); Belch, H. [Argonne National Lab. (ANL), Argonne, IL (United States); Brunett, A. [Argonne National Lab. (ANL), Argonne, IL (United States); Heidet, F. [Argonne National Lab. (ANL), Argonne, IL (United States); Hill, R. [Argonne National Lab. (ANL), Argonne, IL (United States); Hoffman, E. [Argonne National Lab. (ANL), Argonne, IL (United States); Jin, E. [Argonne National Lab. (ANL), Argonne, IL (United States); Mohamed, W. [Argonne National Lab. (ANL), Argonne, IL (United States); Moisseytsev, A. [Argonne National Lab. (ANL), Argonne, IL (United States); Passerini, S. [Argonne National Lab. (ANL), Argonne, IL (United States); Sienicki, J. [Argonne National Lab. (ANL), Argonne, IL (United States); Sumner, T. [Argonne National Lab. (ANL), Argonne, IL (United States); Vilim, R. [Argonne National Lab. (ANL), Argonne, IL (United States); Hayes, Steven [Argonne National Lab. (ANL), Argonne, IL (United States)

    2016-02-29

    The FASTER reactor plant is a sodium-cooled fast spectrum test reactor that provides high levels of fast and thermal neutron flux for scientific research and development. The 120MWe FASTER reactor plant has a superheated steam power conversion system which provides electrical power to a local grid allowing for recovery of operating costs for the reactor plant.

  18. ADAPTIVE CONTROL SYSTEM OF INDUSTRIAL REACTORS

    Directory of Open Access Journals (Sweden)

    Vyacheslav K. Mayevski

    2014-01-01

    Full Text Available This paper describes a mathematical model of an industrial chemical reactor for production of synthetic rubber. During reactor operation the model parameters vary considerably. To create a control algorithm performed transformation of mathematical model of the reactor in order to obtain a dependency that can be used to determine the model parameters are changing during reactor operation.

  19. Nuclear research reactors activities in INVAP

    Energy Technology Data Exchange (ETDEWEB)

    Ordonez, Juan Pablo [INVAP, Bariloche (Argentina)

    2013-07-01

    This presentation describes the different activities in the research reactor field that are being carried out by INVAP. INVAP is presently involved in the design of three new research reactors in three different countries. The RA-10 is a multipurpose reactor, in Argentina, planned as a replacement for the RA-3 reactor. INVAP was contracted by CNEA for carrying out the preliminary engineering for this reactor, and has recently been contracted by CNEA for the detailed engineering. CNEA groups are strongly involved in the design of this reactor. The RMB is a multipurpose reactor, planned by CNEN from Brazil. CNEN, through REDETEC, has contracted INVAP to carry out the preliminary engineering for this reactor. As the user requirements for RA-10 and RMB are very similar, an agreement was signed between Argentina and Brasil governments to cooperate in these two projects. The agreement included that both reactors would use the OPAL reactor in Australia, design and built by INVAP, as a reference reactor. INVAP has also designed the LPRR reactor for KACST in Saudi Arabia. The LPRR is a 30 kw reactor for educational purposes. KACST initially contracted INVAP for the engineering for this reactor and has recently signed the contract with INVAP for building the reactor. General details of these three reactors will be presented.

  20. Advanced Carbothermal Electric Reactor Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The overall objective of the Phase 1 effort was to demonstrate the technical feasibility of the Advanced Carbothermal Electric (ACE) Reactor concept. Unlike...

  1. Thermal Analysis for Mobile Reactor

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    <正>Mobile reactor design in the paper is consisted of two grades of thermal electric conversion. The first grade is the thermionic conversion inside the core and the second grade is thermocouple conversion

  2. Advanced Carbothermal Electric Reactor Project

    Data.gov (United States)

    National Aeronautics and Space Administration — ORBITEC proposes to develop the Advanced Carbothermal Electric (ACE) reactor to efficiently extract oxygen from lunar regolith. Unlike state-of-the-art carbothermal...

  3. Teaching About Nature's Nuclear Reactors

    CERN Document Server

    Herndon, J M

    2005-01-01

    Naturally occurring nuclear reactors existed in uranium deposits on Earth long before Enrico Fermi built the first man-made nuclear reactor beneath Staggs Field in 1942. In the story of their discovery, there are important lessons to be learned about scientific inquiry and scientific discovery. Now, there is evidence to suggest that the Earth's magnetic field and Jupiter's atmospheric turbulence are driven by planetary-scale nuclear reactors. The subject of planetocentric nuclear fission reactors can be a jumping off point for stimulating classroom discussions about the nature and implications of planetary energy sources and about the geomagnetic field. But more importantly, the subject can help to bring into focus the importance of discussing, debating, and challenging current thinking in a variety of areas.

  4. Reactor containment research and development

    Energy Technology Data Exchange (ETDEWEB)

    Weil, N. A.

    1963-06-15

    An outline is given of containment concepts, sources and release rates of energy, responses of containment structures, effects of projectiles, and leakage rates of radioisotopes, with particular regard to major reactor accidents. (T.F.H.)

  5. Reactor operation environmental information document

    Energy Technology Data Exchange (ETDEWEB)

    Bauer, L.R.; Hayes, D.W.; Hunter, C.H.; Marter, W.L.; Moyer, R.A.

    1989-12-01

    This volume is a reactor operation environmental information document for the Savannah River Plant. Topics include meteorology, surface hydrology, transport, environmental impacts, and radiation effects. 48 figs., 56 tabs. (KD)

  6. Advanced Catalytic Hydrogenation Retrofit Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Reinaldo M. Machado

    2002-08-15

    Industrial hydrogenation is often performed using a slurry catalyst in large stirred-tank reactors. These systems are inherently problematic in a number of areas, including industrial hygiene, process safety, environmental contamination, waste production, process operability and productivity. This program proposed the development of a practical replacement for the slurry catalysts using a novel fixed-bed monolith catalyst reactor, which could be retrofitted onto an existing stirred-tank reactor and would mitigate many of the minitations and problems associated with slurry catalysts. The full retrofit monolith system, consisting of a recirculation pump, gas/liquid ejector and monolith catalyst, is described as a monolith loop reactor or MLR. The MLR technology can reduce waste and increase raw material efficiency, which reduces the overall energy required to produce specialty and fine chemicals.

  7. Unique features of space reactors

    Science.gov (United States)

    Buden, David

    Space reactors are designed to meet a unique set of requirements; they must be sufficiently compact to be launched in a rocket to their operational location, operate for many years without maintenance and servicing, operate in extreme environments, and reject heat by radiation to space. To meet these restrictions, operating temperatures are much greater than in terrestrial power plants, and the reactors tend to have a fast neutron spectrum. Currently, a new generation of space reactor power plants is being developed. The major effort is in the SP-100 program, where the power plant is being designed for seven years of full power, and no maintenance operation at a reactor outlet operating temperature of 1350 K.

  8. Jules Horowitz Reactor, basic design

    Energy Technology Data Exchange (ETDEWEB)

    Bergamaschi, Y.; Bouilloux, Y.; Chantoin, P.; Guigon, B.; Bravo, X.; Germain, C.; Rommens, M.; Tremodeux, P

    2003-07-01

    Since the shutdown of the SILOE reactor in 1997, the OSIRIS reactor has ensured the needs regarding technological irradiation at CEA including those of its industrial partners and customers. The Jules Horowitz Reactor will replace it. It has the ambition to provide the necessary nuclear data and maintain a fission research capacity in Europe after 2010. This capacity should be service-oriented. It will be established in Cadarache. The Jules Horowitz reactor will also: - represent a significant step in term of performances and experimental capabilities, - be designed with a high flexibility, in order to satisfy the current demand from European industry, research and be able to accommodate future requirements, - reach a high level of safety, according to the best current practice. This paper will present the main functionalities and the design options resulting from the 'preliminary design' studies. (authors)

  9. Solid State Reactor Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Mays, G.T.

    2004-03-10

    The Solid State Reactor (SSR) is an advanced reactor concept designed to take advantage of Oak Ridge National Laboratory's (ORNL's) recently developed graphite foam that has enhanced heat transfer characteristics and excellent high-temperature mechanical properties, to provide an inherently safe, self-regulated, source of heat for power and other potential applications. This work was funded by the U.S. Department of Energy's Nuclear Energy Research Initiative (NERI) program (Project No. 99-064) from August 1999 through September 30, 2002. The initial concept of utilizing the graphite foam as a basis for developing an advanced reactor concept envisioned that a suite of reactor configurations and power levels could be developed for several different applications. The initial focus was looking at the reactor as a heat source that was scalable, independent of any heat removal/power conversion process. These applications might include conventional power generation, isotope production and destruction (actinides), and hydrogen production. Having conducted the initial research on the graphite foam and having performed the scoping parametric analyses from neutronics and thermal-hydraulic perspectives, it was necessary to focus on a particular application that would (1) demonstrate the viability of the overall concept and (2) require a reasonably structured design analysis process that would synthesize those important parameters that influence the concept the most as part of a feasible, working reactor system. Thus, the application targeted for this concept was supplying power for remote/harsh environments and a design that was easily deployable, simplistic from an operational standpoint, and utilized the new graphite foam. Specifically, a 500-kW(t) reactor concept was pursued that is naturally load following, inherently safe, optimized via neutronic studies to achieve near-zero reactivity change with burnup, and proliferation resistant. These four major areas

  10. Reactor antineutrinos and nuclear physics

    Science.gov (United States)

    Balantekin, A. B.

    2016-11-01

    Short-baseline reactor neutrino experiments successfully measured the neutrino parameters they set out to measure, but they also identified a shape distortion in the 5-7 MeV range as well as a reduction from the predicted value of the flux. Nuclear physics input into the calculations of reactor antineutrino spectra needs to be better refined if this anomaly is to be interpreted as due to sterile neutrino states.

  11. Microchannel Reactors for ISRU Applications

    Science.gov (United States)

    Carranza, Susana; Makel, Darby B.; Blizman, Brandon; Ward, Benjamin J.

    2005-02-01

    Affordable planning and execution of prolonged manned space missions depend upon the utilization of local resources and the waste products which are formed in manned spacecraft and surface bases. Successful in-situ resources utilization (ISRU) will require component technologies which provide optimal size, weight, volume, and power efficiency. Microchannel reactors enable the efficient chemical processing of in situ resources. The reactors can be designed for the processes that generate the most benefit for each mission. For instance, propellants (methane) can be produced from carbon dioxide from the Mars atmosphere using the Sabatier reaction and ethylene can be produced from the partial oxidation of methane. A system that synthesizes ethylene could be the precursor for systems to synthesize ethanol and polyethylene. Ethanol can be used as a nutrient for Astrobiology experiments, as well as the production of nutrients for human crew (e.g. sugars). Polyethylene can be used in the construction of habitats, tools, and replacement parts. This paper will present recent developments in miniature chemical reactors using advanced Micro Electro Mechanical Systems (MEMS) and microchannel technology to support ISRU of Mars and lunar missions. Among other applications, the technology has been demonstrated for the Sabatier process and for the partial oxidation of methane. Microchannel reactors were developed based on ceramic substrates as well as metal substrates. In both types of reactors, multiple layers coated with catalytic material are bonded, forming a monolithic structure. Such reactors are readily scalable with the incorporation of extra layers. In addition, this reactor structure minimizes pressure drop and catalyst settling, which are common problems in conventional packed bed reactors.

  12. The resonance absorption controlled reactor

    Energy Technology Data Exchange (ETDEWEB)

    Caro, R.

    1977-07-01

    In this report a new method of reactor control based on tho isotopic moderator composition variation is studied, taking as a reference a D{sub 2}O/H{sub 2}O system. With this method an spectacular increment in the burn-up degree and a sensible reduction of the conventional control system is obtained. An important part of this work has been the detailed analysis of the parameters affecting the neutron spectrum in a heterogeneous reactor. (Author) 50 refs.

  13. Calculation of reactor antineutrino spectra in TEXONO

    CERN Document Server

    Chen Dong Liang; Mao Ze Pu; Wong, T H

    2002-01-01

    In the low energy reactor antineutrino physics experiments, either for the researches of antineutrino oscillation and antineutrino reactions, or for the measurement of abnormal magnetic moment of antineutrino, the flux and the spectra of reactor antineutrino must be described accurately. The method of calculation of reactor antineutrino spectra was discussed in detail. Furthermore, based on the actual circumstances of NP2 reactors and the arrangement of detectors, the flux and the spectra of reactor antineutrino in TEXONO were worked out

  14. LMFBR type reactor

    Energy Technology Data Exchange (ETDEWEB)

    Iwashige, Kengo

    1996-06-21

    In an LMFBR type reactor, partitions are disposed to a coolant channel at positions lower than the free liquid level, and the width of the partitions is adapted to have a predetermined condition. Namely, when low temperature fluid overflowing the wall of the coolant channel, flows down and collided against the free liquid surface in the coolant channel, since the dropping speed thereof is reduced abruptly, large pressure waves are caused by kinetic force of the low temperature fluid. However, if appropriate numbers of partitions having an appropriate shape are formed, the dropping speed of the low temperature fluid is moderated to reduce the pressure waves. In addition, since the pressure waves are dispersed to the circumferential and lateral directions of the coolant flow channel respectively, the propagation of the pressure waves can be prevented effectively. Further, when the flow of the low temperature fluid is changed to the circumferential direction, for example, by earthquakes, since the partitions act as members resisting against the circumferential change of the low temperature fluid, the change of the direction can be suppressed. (N.H.)

  15. Reactor Simulator Testing

    Science.gov (United States)

    Schoenfeld, Michael P.; Webster, Kenny L.; Pearson, Boise J.

    2013-01-01

    As part of the Nuclear Systems Office Fission Surface Power Technology Demonstration Unit (TDU) project, a reactor simulator test loop (RxSim) was design & built to perform integrated testing of the TDU components. In particular, the objectives of RxSim testing was to verify the operation of the core simulator, the instrumentation and control system, and the ground support gas and vacuum test equipment. In addition, it was decided to include a thermal test of a cold trap purification design and a pump performance test at pump voltages up to 150 V since the targeted mass flow rate of 1.75 kg/s was not obtained in the RxSim at the originally constrained voltage of 120 V. This paper summarizes RxSim testing. The gas and vacuum ground support test equipment performed effectively in NaK fill, loop pressurization, and NaK drain operations. The instrumentation and control system effectively controlled loop temperature and flow rates or pump voltage to targeted settings. The cold trap design was able to obtain the targeted cold temperature of 480 K. An outlet temperature of 636 K was obtained which was lower than the predicted 750 K but 156 K higher than the cold temperature indicating the design provided some heat regeneration. The annular linear induction pump (ALIP) tested was able to produce a maximum flow rate of 1.53 kg/s at 800 K when operated at 150 V and 53 Hz.

  16. Novel Catalytic Membrane Reactors

    Energy Technology Data Exchange (ETDEWEB)

    Stuart Nemser, PhD

    2010-10-01

    There are many industrial catalytic organic reversible reactions with amines or alcohols that have water as one of the products. Many of these reactions are homogeneously catalyzed. In all cases removal of water facilitates the reaction and produces more of the desired chemical product. By shifting the reaction to right we produce more chemical product with little or no additional capital investment. Many of these reactions can also relate to bioprocesses. Given the large number of water-organic compound separations achievable and the ability of the Compact Membrane Systems, Inc. (CMS) perfluoro membranes to withstand these harsh operating conditions, this is an ideal demonstration system for the water-of-reaction removal using a membrane reactor. Enhanced reaction synthesis is consistent with the DOE objective to lower the energy intensity of U.S. industry 25% by 2017 in accord with the Energy Policy Act of 2005 and to improve the United States manufacturing competitiveness. The objective of this program is to develop the platform technology for enhancing homogeneous catalytic chemical syntheses.

  17. Tritium management in fusion reactors

    Energy Technology Data Exchange (ETDEWEB)

    Galloway, T.R.

    1978-05-01

    This is a review paper covering the key environmental and safety issues and how they have been handled in the various magnetic and inertial confinement concepts and reference designs. The issues treated include: tritium accident analyses, tritium process control, occupational safety, HTO formation rate from the gas-phase, disposal of tritium contaminated wastes, and environmental impact--each covering the Joint European Tokamak (J.E.T. experiment), Tokamak Fusion Test Reactor (TFTR), Russian T-20, The Next Step (TNS) designs by Westinghouse/ORNL and General Atomic/ANL, the ANL and ORNL EPR's, the G.A. Doublet Demonstration Reactor, the Italian Fintor-D and the ORNL Demo Studies. There are also the following full scale plant reference designs: UWMAK-III, LASL's Theta Pinch Reactor Design (RTPR), Mirror Fusion Reactor (MFR), Tandem Mirror Reactor (TMR), and the Mirror Hybrid Reactor (MHR). There are four laser device breakeven experiments, SHIVA-NOVA, LLL reference designs, ORNL Laser Fusion power plant, the German ''Saturn,'' and LLL's Laser Fusion EPR I and II.

  18. Comportamiento del Programa Nacional de Tuberculosis pulmonar, en un municipio

    Directory of Open Access Journals (Sweden)

    René F. Espinosa Alvarez

    1998-10-01

    Full Text Available Se conoce que la tuberculosis pulmonar constituye un serio problema de salud en la mayor parte de los países del mundo. En el nuestro existe un programa de control de dicha entidad y su conocimiento y objetivos son de vital importancia para el médico de la familia. Se analizó el comportamiento del programa nacional de tuberculosis pulmonar en el policlínico docente Lawton en el trienio 1995-1997, a cuyo efecto se revisaron desde el 1-1-95 al 31-12-97 los esputos indicados por los médicos de la familia de los 49 consultorios que existen en dicha unidad y se extrajeron los datos de las hojas de cargo de los médicos del departamento de estadísticas y del laboratorio clínico que controla esta actividad. Los resultados demuestran algunas dificultades que subsisten en el control de la enfermedad que pudieran solucionarse con una mayor dedicación a esta actividad por parte de los médicos de la familia como responsables directos de sus diferentes áreas de salud, así como de las autoridades sanitarias que tienen que ver con el problemaIt is known that pulmonary tuberculosis is a serious health problem in most of the countries. In our country, there is a tuberculosis control program whose knowledge and objectives are of vital importance for the family physician. The behavior of the national program to control pulmonary tuberculosis was analyzed at "Lawton" Teaching Polyclinic from 1995 to 1997. To this end the sputa ordered from 1-1-95 to 31-12-97 by the family physicians from the 49 physicians’ offices existing in this unit were reviewed. Data were given by the Statistics Department and by the Clinical Laboratory controlling this activity. The results show that there are still some difficulties to control this disease that may be solved through a greater dedication to this activity on the part of the family physicians as direct responsible of their different health areas, and of the health authorities having to do with this problem

  19. Antecedentes, origenes y evolucion de un programa mitico: estudio 1 de TVE

    National Research Council Canada - National Science Library

    Rodriguez Merchan, Eduardo

    2014-01-01

    .... Este articulo trata de determinar sus origenes, la preocupacion de aquella incipiente television por los programas dramaticos y la conformacion de una audiencia proclive a ese tipo de formatos...

  20. trabalhadoras de um programa de saúde da família

    Directory of Open Access Journals (Sweden)

    Eliana P. Azambuja

    2007-01-01

    Full Text Available El objetivo del presente estudio es comprender los significados del trabajo en el proceso de vivir de trabajadores (as del Programa de Salud de la Familia, de una ciudad del Estado de Rio Grande do Sul. Con base en un abordaje exploratorio descriptivo, los datos cualitativos fueron obtenidos con diez trabajadoras del Programa de Salud de la Familia, a través de entrevistas y grupo focal. Los datos fueron analizados usando el programa de análisis cualitativo - QSR Nvivo e interpretados a través del referencial teórico propuesto. De acuerdo con los resultados de este estudio, el trabajo surgió a partir de una red de significados que lo caracterizan como proceso (des potencializador del vivir humano de los (las trabajadores (as del Programa de Salud de la Familia.

  1. Metodos de analise em programas de seguranca alimentar e nutricional: uma experiencia no Brasil

    National Research Council Canada - National Science Library

    de Carvalho, Alice Teles; de Almeida, Erika Rodrigues; Nilson, Eduardo Augusto Fernandes; Ubarana, Juliana Amorim; Fernandez, Irela Mazar; Immink, Maarten

    2013-01-01

    .... As etapas metodologicas compreenderam a definicao dos programas a serem analisados, dos locais de coleta de dados, do publico participante da pesquisa e dos procedimentos de coleta e analise dos dados...

  2. El Turismo como una estrategia para el mundo en desarrollo: el Programa UNWTO. Volunteers

    Directory of Open Access Journals (Sweden)

    Susana Lima

    2012-01-01

    Full Text Available El compromiso del turismo como una estrategia para el mundo en desarrollo vine adquiriendo mayor interés delos gobiernos y de las organizaciones internacionales para el cumplimiento de los Objetivos de Desarrollo del Milenio. En esteartículo, se busca contribuir al marco teórico relacionado con las diversas perspectivas sobre los programas de cooperación internacional para el desarrollo, que consideran al turismo como una estrategia que contribuye al logro de esos objetivos, como es el caso del Programa UNWTO.Volunteers. Las características principales de este programa serán descritas y se discutirán los impactos que pueden producir en los destinos involucrados. Esta discusión se basa en un estudio de caso del Programa UNWTO.Volunteers, desarrollado en el estado mexicano de Chiapas en 2008.

  3. Marco conceptual para la evaluación de programas de salud

    Directory of Open Access Journals (Sweden)

    Montero Rojas, Eiliana

    2004-03-01

    Full Text Available La evaluación como disciplina es un área relativamente nueva de las Ciencias Sociales; consecuentemente, su incorporación explícita en los programas y sistemas de salud ha llegado algo tardíamente. Este artículo presenta elementos de un marco conceptual para concebir y utilizar la evaluación en programas de salud. Se define la evaluación como una herramienta para la toma de decisiones, se discuten tendencias y temáticas de actualidad en el campo y también conceptos clave tales como teoría del programa y valoración de necesidades. Finalmente, se esboza una primera aproximación a dos constructos de gran interés en la evaluación de programas de salud: calidad y equidad.

  4. Instrumentos de desarrollo de competencias para un programa de alfabetizacion en informacion en bibliotecas escolares

    National Research Council Canada - National Science Library

    Marzal, Miguel Angel; de los Rios, Nieves Sellers

    2011-01-01

    Las competencias en informacion deben ser objeto esencial de los programas de alfabetizacion en informacion, como elemento en el desarrollo del modelo socio-economico de la Sociedad del conocimiento...

  5. Antecedentes, origenes y evolucion de un programa mitico: estudio 1 de TVE

    National Research Council Canada - National Science Library

    Rodriguez Merchan, Eduardo

    2014-01-01

    Entre los diversos programas teatrales de la television espanola en la epoca del monopolio televisivo, ocupa un lugar destacado el formato llamado Estudio 1, uno de los espacios mas importantes en los comienzos de TVE...

  6. Modelo de Excelencia de Programas Formativos en Línea (MEPFL

    Directory of Open Access Journals (Sweden)

    Olga María ALEGRE DE LA ROSA

    2006-01-01

    Full Text Available La mejora de la calidad de la docencia universitaria requiere el desarrollo profesional y docente del profesorado. Este artículo ilustra el Modelo de Excelencia de Programas Formativos en Línea (MEPFL basado en el modelo europeo de aseguramiento de la calidad para la mejora de criterios, estándares e indicadores de un programa formativo. Los resultados de la aplicación del MEPFL indican la necesidad de políticas de calidad que apoyen las competencias de los evaluadores para mejorar los programas formativos. El estudio concluye esquematizando cómo el profesorado y el personal de las agencias de acreditación y evaluación de la calidad universitaria pueden usar MEPFL para el aseguramiento de la calidad interna y externa de los programas formativos.

  7. Previniendo el maltrato infantil: descripcion psicosocial de usuarios de programas de intervencion breve en Chile

    National Research Council Canada - National Science Library

    Cifuentes, Bernardita; Ross, Maria Ines; Gomez, Esteban

    2010-01-01

    El estudio describe caracteristicas y factores de riesgo para el maltrato y la negligencia infantil, en 591 ninos y adolescentes, sus figuras parentales y familias atendidas por ocho programas de intervencion breve (PIB...

  8. Espana entra en un programa de fisica rechazado por los cientificos

    CERN Document Server

    Rivera, A

    2002-01-01

    "El Ministerio de Ciencia y Tecnologia (MCyT) anuncio ayer la aprobacion de un acuerdo de colaboracion con el Laboratorio Europeo de Fisica de Particulas (CERN), junto a Ginebra, para un programa de investigacion de neutrinos (CNGS)" (1 page).

  9. Marco conceptual para la evaluación de programas de salud

    Directory of Open Access Journals (Sweden)

    Eiliana Montero Rojas

    2004-01-01

    Full Text Available La evaluación como disciplina es un área relativamente nueva de las Ciencias Sociales; consecuentemente, su incorporación explícita en los programas y sistemas de salud ha llegado algo tardíamente. Este artículo presenta elementos de un marco conceptual para concebir y utilizar la evaluación en programas de salud. Se define la evaluación como una herramienta para la toma de decisiones, se discuten tendencias y temáticas de actualidad en el campo y también conceptos clave tales como teoría del programa y valoración de necesidades. Finalmente, se esboza una primera aproximación a dos constructos de gran interés en la evaluación de programas de salud: calidad y equidad.

  10. Necessidade de implantar programa nacional de seguranca do paciente no Brasil

    Directory of Open Access Journals (Sweden)

    Helaine Carneiro Capucho

    2013-08-01

    Full Text Available O objetivo do estudo foi suscitar reflexão acerca da necessidade de se criar um sistema nacional de notificações sobre incidentes como base para um programa de segurança do paciente. Incidentes em saúde acarretam danos aos pacientes e oneram o sistema de saúde. Embora tenha lançado recentemente um programa de avaliação da qualidade nas instituições de saúde, o Ministério da Saúde, Brasil, ainda não possui um programa que avalie sistematicamente os resultados negativos da assistência. Discute-se a necessidade de se implementar programa brasileiro de segurança do paciente, a fim de promover a cultura pela segurança do paciente e da qualidade em saúde no Sistema Único de Saúde.

  11. Efectos adversos de los programas de apoyo alimentario en los hogares rurales de Calakmul, Campeche

    Directory of Open Access Journals (Sweden)

    Brenda Olvera

    2017-01-01

    Full Text Available Objetivo: se analizaron los efectos no desea-dos de los apoyos gubernamentales del Pro-grama de Inclusión Social Prospera, Progra-ma de Apoyo Alimentario (PA L, Programa Estratégico para la Seguridad Alimentaria (PESA y Cocinas Escolares, en la producción de alimentos y en el patrón de consumo. Me-todología. En el año 2015 aplicamos 46 en-cuestas y 32 entrevistas a beneficiarios, cam-pesinos y funcionarios de los programas sociales, en un estudio de caso en dos comu-nidades de Calakmul, Campeche. Resulta-dos. En el estudio se argumenta que, con es-tos programas, a pesar de las mejoras en el estado de nutrición, la ingesta de alimentos altamente energéticos, ricos en grasas, azuca-res y sodio, ha incrementado. La gente de las dos comunidades tiende a consumir alimen-tos altamente industrializados, mientras que la producción e ingesta de los alimentos pro-ducidos en las milpas y los de traspatio dismi-nuyen. La desinformación, el bajo nivel educativo, la nula educación nutrimental y la gran disponibilidad de alimentos industriali-zados, son algunos de los factores que contri-buyen a tal consumo. Limitaciones. Fue una limitante durante el trabajo de campo acceder a la información oficial de los programas Prospera, PESA, PA L y Cocinas Escolares, so-bre cómo funcionan en la práctica dentro de las comunidades. No obstante esta situación se compenso realizando entrevistas a profun-didad a funcionarios públicos y en especial a los beneficiarios de los programas antes men-cionados, para conocer a fondo como funcio-na cada programa social. Conclusiones. Se concluye que los programas públicos analiza-dos requerirían componentes educativos más claros respecto a la calidad de los alimentos consumidos. Aunque no es el objetivo central de los programas analizados de fomentar la pro-ducción de alimentos deben de estimular la pro-ducción de alimentos tradicionales y sanos me-diante programas educativos.

  12. Innovative hybrid biological reactors using membranes; Reactores biologico hibrido innovadores utilizando membranas

    Energy Technology Data Exchange (ETDEWEB)

    Diez, R.; Esteban-Garcia, A. L.; Florio, L. de; Rodriguez-Hernandez, L.; Tejero, I.

    2011-07-01

    In this paper we present two lines of research on hybrid reactors including the use of membranes, although with different functions: RBPM, biofilm reactors and membranes filtration RBSOM, supported biofilm reactors and oxygen membranes. (Author) 14 refs.

  13. El programa arquitectónico en las bases de un concurso

    OpenAIRE

    2007-01-01

    El programa arquitectónico es el instrumento esencial con que cuentan las bases de un concurso. El programa es la prefiguración de la forma y en él se esconde el fondo del problema. Su elaboración conceptual se nutre de la información que entrega el mandante, que da forma a los sistemas y componentes del cálculo lógico que debe ser llevado a la realidad.

  14. Fatores Direcionadores da Transferência de Recursos em Programas Sociais no Brasil

    Directory of Open Access Journals (Sweden)

    Doraliza Auxiliadora Abranches Monteiro

    2013-06-01

    Full Text Available Há intenso debate entre os estudiosos a respeito da focalização dos programas sociais. Alguns autores apontam o lado negativo da focalização desses programas no Brasil, em que têm prevalecido políticas de ação isolada em detrimento das universalizantes, enquanto outros defenderam a importância das políticas focalizadas. Nesse sentido, o presente estudo foi conduzido a fim de verificar a existência de fatores socioeconômicos direcionadores da distribuição dos recursos públicos dos programas sociais no Brasil. Buscou-se amparo teórico nas características da Proteção Social Brasileira e na descrição de vários programas sociais implantados pelo governo. Para a análise, foi estimada uma regressão linear múltipla com dados em painel para os 27 Estados brasileiros, em que o período do estudo foi de 2004 a 2006. Os resultados apontam a predominância do Programa Bolsa Família nos recursos destinados a programas sociais, indicando-o como o principal Programa Social do Brasil. Outro aspecto importante refere-se à identificação de fatores socioeconômicos direcionadores do repasse financeiro aos programas sociais, em que se destacam: população, proporção de pobres, esperança de vida ao nascer, taxa de desemprego, taxa bruta de mortalidade, taxa de analfabetismo e matrículas no ensino fundamental.

  15. Programas de iluminação para poedeiras semi-pesadas

    Directory of Open Access Journals (Sweden)

    Clóvis Eliseu Gewehr

    2011-10-01

    Full Text Available http://dx.doi.org/10.5007/2175-7925.2012v25n1p151 Com o objetivo de avaliar diferentes programas de iluminação para poedeiras de alto desempenho, o experimento foi conduzido utilizando-se 420 poedeiras semipesadas criadas sobre cama durante 140 dias, dividido em cinco períodos de 28 dias. Foram utilizados três programas: contínuo de 16h de luz e 8h de escuro; programa intermitente com duas fotofases de 2min equidistantes em 16h entre a luz natural e programa com apenas luz natural decrescente. Avaliou-se consumo de ração (g/ave/dia, produção de ovos (%/ave/dia, peso de ovos (g, massa dos ovos (g, conversão alimentar (g/g e gravidade específica dos ovos (g/cm3. Os resultados foram submetidos a analise de variança e as diferenças ao teste de Tukey (5%. Aves submetidas ao programa intermitente e luz natural decrescente tiveram menor (P<0,05 produção de ovos, consumo de ração e peso de ovos em relação ao programa contínuo de 16h. Programa intermitente com fotofases de 2min e programa de luz natural decrescente não são eficientes para ser fornecido às poedeiras semi-pesadas no início do período de postura.

  16. Establishment of licensing process for development reactors

    Energy Technology Data Exchange (ETDEWEB)

    Jo, Jong Chull; Yune, Young Gill; Kim, Woong Sik (and others)

    2006-02-15

    A study on licensing processes for development reactors has been performed to prepare the licensing of development reactors developed in Korea. The contents and results of the study are summarized as follows. The licensing processes for nuclear reactors in Korea, U.S.A., Japan, France, U.K., Canada, and IAEA were surveyed and analyzed to obtain technical bases necessary for establishing licensing processes applicable to development reactors in Korea. Based on the technical bases obtained the above analysis, the purpose, power output, and design characteristics of development reactors were analyzed in detail. The analysis results suggested that development reactors should be classified as a new reactor category (called as 'development reactor') separated from the current reactor categories such as the research reactor and the power reactor. Therefore, it is proposed to establish a new reactor category classified as 'development reactor' for the development reactors. And licensing processes, including licensing technical requirements, licensing document requirements, and other regulatory requirements, were also proposed for the development reactors. In order to institutionalize the licensing processes developed in this study, it is necessary to revise the current laws. Therefore, draft provisions of Atomic Energy Act, Enforcement Decree of the Atomic Energy Act, and Enforcement Regulation of the Atomic Energy Act have been developed for the preparation of the future legalization of the licensing processes proposed for the development reactors. Conclusively, a proposal of licensing processes and draft provisions of laws have been developed for the development reactors. The results proposed in this study can be applied directly to the licensing of the future development reactors. Furthermore, they will also contribute to establishing successfully the licensing processes of the development reactors.

  17. Repairing liner of the reactor; Reparacion del liner del reactor

    Energy Technology Data Exchange (ETDEWEB)

    Aguilar H, F. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    2001-07-15

    Due to the corrosion problems of the aluminum coating of the reactor pool, a periodic inspections program by ultrasound to evaluate the advance grade and the corrosion speed was settled down. This inspections have shown the necessity to repair some areas, in those that the slimming is significant, of not making it can arrive to the water escape of the reactor pool. The objective of the repair is to place patches of plates of 1/4 inch aluminum thickness in the areas of the reactor 'liner', in those that it has been detected by ultrasound a smaller thickness or similar to 3 mm. To carry out this the fuels are move (of the core and those that are decaying) to a temporary storage, the structure of the core is confined in a tank that this placed inside the pool of the reactor, a shield is placed in the thermal column and it is completely extracted the water for to leave uncover the 'liner' of the reactor. (Author)

  18. Etnografia dos usos sociais do corpo da garota de programa

    Directory of Open Access Journals (Sweden)

    Fábio Lopes Alves

    2011-12-01

    Full Text Available O presente texto tem o objetivo de apresentar, através de uma narrativa etnográfica, como o corpo das garotas de programa é utilizado durante a interação social com os clientes em situações rotineiras no interior de um cabaré brasileiro. Fundamentado em referenciais teóricos antropológicos, analiso como essas mulheres constroem suas relações cotidianas no ambiente de prostituição, focalizando especificamente os usos sociais que elas fazem do próprio corpo. Com este texto pretendo contribuir para os estudos sobre corporalidades, interações sociais, gênero e sociabilidade ao descrever os principais eventos ocorrentes nessa trama. A discussão, que aqui se apresenta de forma condensada, se constitui numa espécie de moldura das outras categorias de análises investigadas e discutidas no livro do autor: “Noites de cabaré: prostituição feminina, gênero e sociabilidade na zona de meretrício”.

  19. Programa de saúde mental Programme in mental health

    Directory of Open Access Journals (Sweden)

    Cid Guimarães

    1975-12-01

    Full Text Available É apresentado o programa de Saúde Mental decorrente de convênio estabelecido pela Secretaria da Saúde do Estado de São Paulo com a Universidade de São Paulo, através da Faculdade de Saúde Pública. Este convênio tem por finalidade a realização de estudos na área de Saúde Mental, tais como assistência psiquiátrica preventiva e pesquisas visando a medir transtornos mentais através de casos de óbito e na população da cidade e de cursos e atividades curriculares e extra-curriculares.The School of Public Health is conducting a project, sponsored by the Health Department of the State of S. Paulo Government, aiming at: studying the integration of a team of mental health workers in a polivalent community health center; carrying out two large surveys on the incidence and prevalence of mental disorders and some of their characteristics; promoting courses and seminars on Mental Health for the personnel of Community Health Centers.

  20. Reactor Simulator Testing

    Science.gov (United States)

    Schoenfeld, Michael P.; Webster, Kenny L.; Pearson, Boise Jon

    2013-01-01

    As part of the Nuclear Systems Office Fission Surface Power Technology Demonstration Unit (TDU) project, a reactor simulator test loop (RxSim) was design & built to perform integrated testing of the TDU components. In particular, the objectives of RxSim testing was to verify the operation of the core simulator, the instrumentation and control system, and the ground support gas and vacuum test equipment. In addition, it was decided to include a thermal test of a cold trap purification design and a pump performance test at pump voltages up to 150 V since the targeted mass flow rate of 1.75 kg/s was not obtained in the RxSim at the originally constrained voltage of 120 V. This paper summarizes RxSim testing. The gas and vacuum ground support test equipment performed effectively in NaK fill, loop pressurization, and NaK drain operations. The instrumentation and control system effectively controlled loop temperature and flow rates or pump voltage to targeted settings. The cold trap design was able to obtain the targeted cold temperature of 480 K. An outlet temperature of 636 K was obtained which was lower than the predicted 750 K but 156 K higher than the cold temperature indicating the design provided some heat regeneration. The annular linear induction pump (ALIP) tested was able to produce a maximum flow rate of 1.53 kg/s at 800 K when operated at 150 V and 53 Hz. Keywords: fission, space power, nuclear, liquid metal, NaK.

  1. Reactivity determination in accelerator driven reactors using reactor noise analysis

    Directory of Open Access Journals (Sweden)

    Kostić Ljiljana 1

    2002-01-01

    Full Text Available Feynman-alpha and Rossi-alpha methods are used in traditional nuclear reactors to determine the subcritical reactivity of a system. The methods are based on the measurement of the mean value, variance and the covariance of detector counts for different measurement times. Such methods attracted renewed attention recently with the advent of the so-called accelerator driven reactors (ADS proposed some time ago. The ADS systems, intended to be used either in energy generation or transuranium transmutation, will use a subcritical core with a strong spallation source. A spallation source has statistical properties that are different from those traditionally used by radioactive sources. In such reactors the monitoring of the subcritical reactivity is very important, and a statistical method, such as the Feynman-alpha method, is capable of resolving this problem.

  2. Thermonuclear Reflect AB-Reactor

    CERN Document Server

    Bolonkin, Alexander

    2008-01-01

    The author offers a new kind of thermonuclear reflect reactor. The remarkable feature of this new reactor is a three net AB reflector, which confines the high temperature plasma. The plasma loses part of its energy when it contacts with the net but this loss can be compensated by an additional permanent plasma heating. When the plasma is rarefied (has a small density), the heat flow to the AB reflector is not large and the temperature in the triple reflector net is lower than 2000 - 3000 K. This offered AB-reactor has significantly less power then the currently contemplated power reactors with magnetic or inertial confinement (hundreds-thousands of kW, not millions of kW). But it is enough for many vehicles and ships and particularly valuable for tunnelers, subs and space apparatus, where air to burn chemical fuel is at a premium or simply not available. The author has made a number of innovations in this reactor, researched its theory, developed methods of computation, made a sample computation of typical pr...

  3. Heterogeneous Transmutation Sodium Fast Reactor

    Energy Technology Data Exchange (ETDEWEB)

    S. E. Bays

    2007-09-01

    The threshold-fission (fertile) nature of Am-241 is used to destroy this minor actinide by capitalizing upon neutron capture instead of fission within a sodium fast reactor. This neutron-capture and its subsequent decay chain leads to the breeding of even neutron number plutonium isotopes. A slightly moderated target design is proposed for breeding plutonium in an axial blanket located above the active “fast reactor” driver fuel region. A parametric study on the core height and fuel pin diameter-to-pitch ratio is used to explore the reactor and fuel cycle aspects of this design. This study resulted in both non-flattened and flattened core geometries. Both of these designs demonstrated a high capacity for removing americium from the fuel cycle. A reactivity coefficient analysis revealed that this heterogeneous design will have comparable safety aspects to a homogeneous reactor of comparable size. A mass balance analysis revealed that the heterogeneous design may reduce the number of fast reactors needed to close the current once-through light water reactor fuel cycle.

  4. Entropy Production in Chemical Reactors

    Science.gov (United States)

    Kingston, Diego; Razzitte, Adrián C.

    2017-06-01

    We have analyzed entropy production in chemically reacting systems and extended previous results to the two limiting cases of ideal reactors, namely continuous stirred tank reactor (CSTR) and plug flow reactor (PFR). We have found upper and lower bounds for the entropy production in isothermal systems and given expressions for non-isothermal operation and analyzed the influence of pressure and temperature in entropy generation minimization in reactors with a fixed volume and production. We also give a graphical picture of entropy production in chemical reactions subject to constant volume, which allows us to easily assess different options. We show that by dividing a reactor into two smaller ones, operating at different temperatures, the entropy production is lowered, going as near as 48 % less in the case of a CSTR and PFR in series, and reaching 58 % with two CSTR. Finally, we study the optimal pressure and temperature for a single isothermal PFR, taking into account the irreversibility introduced by a compressor and a heat exchanger, decreasing the entropy generation by as much as 30 %.

  5. Simplifying Microbial Electrosynthesis Reactor Design

    Directory of Open Access Journals (Sweden)

    Cloelle G.S. Giddings

    2015-05-01

    Full Text Available Microbial electrosynthesis, an artificial form of photosynthesis, can efficiently convert carbon dioxide into organic commodities; however, this process has only previously been demonstrated in reactors that have features likely to be a barrier to scale-up. Therefore, the possibility of simplifying reactor design by both eliminating potentiostatic control of the cathode and removing the membrane separating the anode and cathode was investigated with biofilms of Sporomusa ovata, which reduces carbon dioxide to acetate. In traditional ‘H-cell’ reactors, where the anode and cathode chambers were separated with a proton-selective membrane, the rates and columbic efficiencies of microbial electrosynthesis remained high when electron delivery at the cathode was powered with a direct current power source rather than with a poteniostat-poised cathode utilized in previous studies. A membrane-less reactor with a direct-current power source with the cathode and anode positioned to avoid oxygen exposure at the cathode, retained high rates of acetate production as well as high columbic and energetic efficiencies. The finding that microbial electrosynthesis is feasible without a membrane separating the anode from the cathode, coupled with a direct current power source supplying the energy for electron delivery, is expected to greatly simplify future reactor design and lower construction costs.

  6. Hanford reactor and separations facility advantages

    Energy Technology Data Exchange (ETDEWEB)

    1963-06-27

    This document describes the advantages and limitations of Hanford production facilities. In addition to summarizing the technical parameters of the reactors and separations plants and their mechanical features, the unique aspects of these facilities to the production of special materials in which the Commission may be interested have been discussed. As the primary difference between the B-C-D-DR-F-H reactors and the K reactors and the K reactors is in the number and length of process channels. This report is addressed primarily to the 2000-tube reactors. K reactor characteristics are within the range of lattice and flexibility parameters described.

  7. Imaging Fukushima Daiichi reactors with muons

    Directory of Open Access Journals (Sweden)

    Haruo Miyadera

    2013-05-01

    Full Text Available A study of imaging the Fukushima Daiichi reactors with cosmic-ray muons to assess the damage to the reactors is presented. Muon scattering imaging has high sensitivity for detecting uranium fuel and debris even through thick concrete walls and a reactor pressure vessel. Technical demonstrations using a reactor mockup, detector radiation test at Fukushima Daiichi, and simulation studies have been carried out. These studies establish feasibility for the reactor imaging. A few months of measurement will reveal the spatial distribution of the reactor fuel. The muon scattering technique would be the best and probably the only way for Fukushima Daiichi to make this determination in the near future.

  8. Fast breeder reactors an engineering introduction

    CERN Document Server

    Judd, A M

    1981-01-01

    Fast Breeder Reactors: An Engineering Introduction is an introductory text to fast breeder reactors and covers topics ranging from reactor physics and design to engineering and safety considerations. Reactor fuels, coolant circuits, steam plants, and control systems are also discussed. This book is comprised of five chapters and opens with a brief summary of the history of fast reactors, with emphasis on international and the prospect of making accessible enormous reserves of energy. The next chapter deals with the physics of fast reactors and considers calculation methods, flux distribution,

  9. A tubular focused sonochemistry reactor

    Institute of Scientific and Technical Information of China (English)

    ZHOU GuangPing; LIANG ZhaoFeng; LI ZhengZhong; ZHANG YiHui

    2007-01-01

    This paper presents a new sonochemistry reactor, which consists of a cylindrical tube with a certain length and piezoelectric transducers at tube's end with the longitudinal vibration. The tube can effectively transform the longitudinal vibration into the radial vibration and thereby generates ultrasound. Furthermore, ultrasound can be focused to form high-intensity ultrasonic field inside tube. The reactor boasts of simple structure and its whole vessel wall can radiate ultrasound so that the electroacoustic transfer efficiency is high. The focused ultrasonic field provides good condition for sonochemical reaction. The length of the reactor can be up to 2 meters, and liquids can pass through it continuously, so it can be widely applied in liquid processing such as sonochemistry.

  10. A compact Tokamak transmutation reactor

    Institute of Scientific and Technical Information of China (English)

    QiuLi-Jian; XiaoBing-Jia

    1997-01-01

    The low aspect ration tokamak is proposed for the driver of a transmutation reactor.The main parameters of the reactor core,neutronic analysis of the blanket are given>the neutron wall loading can be lowered from the magnitude order of 1 MW/m2 to 0.5MW/m2 which is much easier to reach in the near future,and the transmutation efficiency (fission/absorption ratio)is raised further.The blanket power density is about 200MW/m3 which is not difficult to deal with.The key components such as diverter and center conductor post are also designed and compared with conventional TOkamak,Finally,by comparison with the other drivers such as FBR,PWR and accelerator,it can be anticipated that the low aspect ratio transmutation reactor would be one way of fusion energy applications in the near future.

  11. Plasma reactor waste management systems

    Science.gov (United States)

    Ness, Robert O., Jr.; Rindt, John R.; Ness, Sumitra R.

    1992-01-01

    The University of North Dakota is developing a plasma reactor system for use in closed-loop processing that includes biological, materials, manufacturing, and waste processing. Direct-current, high-frequency, or microwave discharges will be used to produce plasmas for the treatment of materials. The plasma reactors offer several advantages over other systems, including low operating temperatures, low operating pressures, mechanical simplicity, and relatively safe operation. Human fecal material, sunflowers, oats, soybeans, and plastic were oxidized in a batch plasma reactor. Over 98 percent of the organic material was converted to gaseous products. The solids were then analyzed and a large amount of water and acid-soluble materials were detected. These materials could possibly be used as nutrients for biological systems.

  12. Investigation of KW reactor incident

    Energy Technology Data Exchange (ETDEWEB)

    Sturges, D G [USAEC Hanford Operations Office, Richland, WA (United States); Hauff, T W; Greager, O H [General Electric Co., Richland, WA (United States). Hanford Atomic Products Operation

    1955-02-11

    The new KW reactor was placed in operation on January 4, 1955, and had been running at relatively low power levels for only 17 hours when it was shut down because of a process tube water leak which appeared to be associated with a slug rupture. After several days of unrewarding effort to remove the slugs and tube by customary methods, it developed that considerable melting of the tube and slugs had taken place. It was then evident that removal of the stuck mass and repairs to the damaged tube channel would require unusual measures that were certain to extend the reactor outage for several weeks. This report documents the work and findings of the Committee which investigated the KW reactor incident. Its content represents unanimous agreement among the three Committee members.

  13. Gaseous fuel nuclear reactor research

    Science.gov (United States)

    Schwenk, F. C.; Thom, K.

    1975-01-01

    Gaseous-fuel nuclear reactors are described; their distinguishing feature is the use of fissile fuels in a gaseous or plasma state, thereby breaking the barrier of temperature imposed by solid-fuel elements. This property creates a reactor heat source that may be able to heat the propellant of a rocket engine to 10,000 or 20,000 K. At this temperature level, gas-core reactors would provide the breakthrough in propulsion needed to open the entire solar system to manned and unmanned spacecraft. The possibility of fuel recycling makes possible efficiencies of up to 65% and nuclear safety at reduced cost, as well as high-thrust propulsion capabilities with specific impulse up to 5000 sec.

  14. Nuclear Reactor Engineering Analysis Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Carlos Chavez-Mercado; Jaime B. Morales-Sandoval; Benjamin E. Zayas-Perez

    1998-12-31

    The Nuclear Reactor Engineering Analysis Laboratory (NREAL) is a sophisticated computer system with state-of-the-art analytical tools and technology for analysis of light water reactors. Multiple application software tools can be activated to carry out different analyses and studies such as nuclear fuel reload evaluation, safety operation margin measurement, transient and severe accident analysis, nuclear reactor instability, operator training, normal and emergency procedures optimization, and human factors engineering studies. An advanced graphic interface, driven through touch-sensitive screens, provides the means to interact with specialized software and nuclear codes. The interface allows the visualization and control of all observable variables in a nuclear power plant (NPP), as well as a selected set of nonobservable or not directly controllable variables from conventional control panels.

  15. Utilisation of thorium in reactors

    Science.gov (United States)

    Anantharaman, K.; Shivakumar, V.; Saha, D.

    2008-12-01

    India's nuclear programme envisages a large-scale utilisation of thorium, as it has limited deposits of uranium but vast deposits of thorium. The large-scale utilisation of thorium requires the adoption of closed fuel cycle. The stable nature of thoria and the radiological issues associated with thoria poses challenges in the adoption of a closed fuel cycle. A thorium fuel based Advanced Heavy Water Reactor (AHWR) is being planned to provide impetus to development of technologies for the closed thorium fuel cycle. Thoria fuel has been loaded in Indian reactors and test irradiations have been carried out with (Th-Pu) MOX fuel. Irradiated thorium assemblies have been reprocessed and the separated 233U fuel has been used for test reactor KAMINI. The paper highlights the Indian experience with the use of thorium and brings out various issues associated with the thorium cycle.

  16. EL DESARROLLO SUSTENTABLE Y LOS PROGRAMAS EDUCATIVOS AMBIENTALES

    Directory of Open Access Journals (Sweden)

    Matilde Castillo

    2011-05-01

    , proponiendo alternativas sustentables en la ejecución de los mismos, posibilitando un cambio hacia una actitud positiva frente a la conservación del medio ambiente. Esta es una investigación documental donde se identifican los elementos fundamentales de la teoría del Desarrollo Sustentable y la utilidad de los Programas Educativos Ambientales como alternativa a la solución de las problemáticas ambientales presentes en las instituciones de educación superior y dentro de las comunidades aledañas. Su importancia se centra en el interés por promocionar, dentro de las comunidades de educación superior, la creación, instrumentación, aplicación y evaluación de Programas Educativos Ambientales, como alternativa Sustentable en la resolución de sus problemas.

  17. Avaliação de processo em políticas e programas públicos: o caso do Programa de Microcrédito Nossocrédito ES

    OpenAIRE

    Premoli, Marcus Vinícius Zandonadi

    2011-01-01

    Avaliar os resultados de políticas e programas públicos torna-se cada vez mais importante diante das medidas de austeridade implantadas nas economias mundiais. Diante desse panorama, a avaliação transforma-se em ferramenta fundamental para uma melhor aplicação dos recursos e alcance dos objetivos projetados. Sob essa perspectiva se propôs avaliar o Programa de Microcrédito do Estado do Espírito Santo Programa Nossocrédito. O programa insere-se nas Políticas Públicas de Trabalho e Renda do G...

  18. Evaluación y acreditación del profesorado, programas e instituciones educativas

    Directory of Open Access Journals (Sweden)

    Fuensanta Hernández Pina

    2014-01-01

    Full Text Available La implantación del Proceso de Bolonia para el desarrollo del Espacio Europeo de la Educación Superior (EEES ha supuesto importantes cambios estructurales y de fondo en las universidades españolas y, como consecuencia, en todo el sistema educativo español. En paralelo a estos cambios el nivel universitario se ha dotado de un sistema que garantice su calidad y su mejora continua a partir de procesos de orientación, evaluación, certificación y acreditación. Es decir, de un sistema de aseguramiento de la calidad que garantice la promoción y la calidad de las instituciones. Para el cumplimiento de la evaluación, la certificación y la acreditación, la ANECA creada en 2002, como fundación estatal, tiene como objetivo “aportar garantía externa de calidad al sistema universitario y contribuir a su mejora constante” (ANECA, 2013. Para llevar a cabo su actividad evaluadora, de certificación y de acreditación, ANECA ha puesto en marcha varios programas que cubren todo el espectro: las enseñanzas con programas como VERIFICA, MONITOR, ACREDITA y ACREDITA-Plus y MENCIÓN, la institución con el programa AUDIT y el profesorado con los programas PEP y ACADEMIA. Todos estos programas de forma integrada tratan de garantizar la calidad de la formación de sus estudiantes, la calidad de los que los imparten dichos programas y la calidad de las instituciones donde tienen lugar los programas formativos.

  19. External fuel thermionic reactor system.

    Science.gov (United States)

    Mondt, J. F.; Peelgren, M. L.

    1971-01-01

    Thermionic reactors are prime candidates for nuclear electric propulsion. The national thermionic reactor effort is concentrated on the flashlight concept with the external-fuel concept as the backup. The external-fuel concept is very adaptable to a completely modular power subsystem which is attractive for highly reliable long-life applications. The 20- to 25-cm long, externally-fueled converters have been designed, fabricated, and successfully tested with many thermal cycles by electrical heating. However, difficulties have been encountered during encapsulation for nuclear heated tests and none have been started to date. These nuclear tests are required to demonstrate the concept feasibility.

  20. Analysis of Adiabatic Batch Reactor

    Directory of Open Access Journals (Sweden)

    Erald Gjonaj

    2016-05-01

    Full Text Available A mixture of acetic anhydride is reacted with excess water in an adiabatic batch reactor to form an exothermic reaction. The concentration of acetic anhydride and the temperature inside the adiabatic batch reactor are calculated with an initial temperature of 20°C, an initial temperature of 30°C, and with a cooling jacket maintaining the temperature at a constant of 20°C. The graphs of the three different scenarios show that the highest temperatures will cause the reaction to occur faster.

  1. PITR: Princeton Ignition Test Reactor

    Energy Technology Data Exchange (ETDEWEB)

    1978-12-01

    The principal objectives of the PITR - Princeton Ignition Test Reactor - are to demonstrate the attainment of thermonuclear ignition in deuterium-tritium, and to develop optimal start-up techniques for plasma heating and current induction, in order to determine the most favorable means of reducing the size and cost of tokamak power reactors. This report describes the status of the plasma and engineering design features of the PITR. The PITR geometry is chosen to provide the highest MHD-stable values of beta in a D-shaped plasma, as well as ease of access for remote handling and neutral-beam injection.

  2. Reactor shutdown delays medical procedures

    Science.gov (United States)

    Gwynne, Peter

    2008-01-01

    A longer-than-expected maintenance shutdown of the Canadian nuclear reactor that produces North America's entire supply of molybdenum-99 - from which the radioactive isotopes technetium-99 and iodine-131 are made - caused delays to the diagnosis and treatment of thousands of seriously ill patients last month. Technetium-99 is a key component of nuclear-medicine scans, while iodine-131 is used to treat cancer and other diseases of the thyroid. Production eventually resumed, but only after the Canadian government had overruled the Canadian Nuclear Safety Commission (CNSC), which was still concerned about the reactor's safety.

  3. Fundamentals of Nuclear Reactor Physics

    CERN Document Server

    Lewis, E E

    2008-01-01

    This new streamlined text offers a one-semester treatment of the essentials of how the fission nuclear reactor works, the various approaches to the design of reactors, and their safe and efficient operation. The book includes numerous worked-out examples and end-of-chapter questions to help reinforce the knowledge presented. This textbook offers an engineering-oriented introduction to nuclear physics, with a particular focus on how those physics are put to work in the service of generating nuclear-based power, particularly the importance of neutron reactions and neutron behavior. Engin

  4. Scaledown of a methanol reactor

    Energy Technology Data Exchange (ETDEWEB)

    Berty, J.M.

    1983-07-01

    This article shows how it is possible to define operating conditions for pilot plants and development labs by scaling down a commercial reactor. Points out that scaledown consideration and experiment planning can be done in a similar manner for the boiling water-cooled, Lurgi-type reactor. Explains that although the design of large, single-train plants to produce methanol for fuel use has different economic objectives, product specifications, and technical constraints from the traditional commercial methanol plants, the same fundamental laws of thermodynamics and reaction kinetics apply to both types of operation.

  5. Reactor Antineutrino Signals at Morton and Boulby

    CERN Document Server

    Dye, Steve

    2016-01-01

    Increasing the distance from which an antineutrino detector is capable of monitoring the operation of a registered reactor, or discovering a clandestine reactor, strengthens the Non-Proliferation of Nuclear Weapons Treaty. This report presents calculations of reactor antineutrino interactions, from quasi-elastic neutrino-proton scattering and elastic neutrino-electron scattering, in a water-based detector operated >10 km from a commercial power reactor. It separately calculates signal from the proximal reactor and background from all other registered reactors. The main results are interaction rates and kinetic energy distributions of charged leptons scattered from quasi-elastic and elastic processes. Comparing signal and background distributions evaluates reactor monitoring capability. Scaling the results to detectors of different sizes, target media, and standoff distances is straightforward. Calculations are for two examples of a commercial reactor (P_th~3 GW) operating nearby (L~20 km) an underground facil...

  6. Oregon State University TRIGA Reactor annual report

    Energy Technology Data Exchange (ETDEWEB)

    Anderson, T.V.; Johnson, A.G.; Bennett, S.L.; Ringle, J.C.

    1979-08-31

    The use of the Oregon State University TRIGA Reactor during the year ending June 30, 1979, is summarized. Environmental and radiation protection data related to reactor operation and effluents are included.

  7. Request for Naval Reactors Comment on Proposed Prometheus Space Flight Nuclear Reactor High Tier Reactor Safety Requirements and for Naval Reactors Approval to Transmit These Requirements to JPL

    Energy Technology Data Exchange (ETDEWEB)

    D. Kokkinos

    2005-04-28

    The purpose of this letter is to request Naval Reactors comments on the nuclear reactor high tier requirements for the PROMETHEUS space flight reactor design, pre-launch operations, launch, ascent, operation, and disposal, and to request Naval Reactors approval to transmit these requirements to Jet Propulsion Laboratory to ensure consistency between the reactor safety requirements and the spacecraft safety requirements. The proposed PROMETHEUS nuclear reactor high tier safety requirements are consistent with the long standing safety culture of the Naval Reactors Program and its commitment to protecting the health and safety of the public and the environment. In addition, the philosophy on which these requirements are based is consistent with the Nuclear Safety Policy Working Group recommendations on space nuclear propulsion safety (Reference 1), DOE Nuclear Safety Criteria and Specifications for Space Nuclear Reactors (Reference 2), the Nuclear Space Power Safety and Facility Guidelines Study of the Applied Physics Laboratory.

  8. Transmutation of actinides in power reactors.

    Science.gov (United States)

    Bergelson, B R; Gerasimov, A S; Tikhomirov, G V

    2005-01-01

    Power reactors can be used for partial short-term transmutation of radwaste. This transmutation is beneficial in terms of subsequent storage conditions for spent fuel in long-term storage facilities. CANDU-type reactors can transmute the main minor actinides from two or three reactors of the VVER-1000 type. A VVER-1000-type reactor can operate in a self-service mode with transmutation of its own actinides.

  9. Conhecendo um programa de liberdade assistida pela percepção de seus operadores

    Directory of Open Access Journals (Sweden)

    Maria Emília Passamani

    Full Text Available Este artigo se baseia em pesquisa desenvolvida no mestrado em Política social, cujo objetivo foi conhecer a percepção que os operadores da medida socioeducativa de liberdade assistida comunitária Casa Sol Nascente têm a respeito do seu programa. Partimos do pressuposto de que esse programa tem sido positivo no acompanhamento aos adolescentes em conflito com a lei, na medida em que os atende em meio aberto, preservando a sua convivência familiar e comunitária, como é estabelecido pelo Estatuto da Criança e do Adolescente. O programa tem recebido boa avaliação dos participantes e de suas respectivas famílias, além de ter apresentado um índice de reincidência significativamente reduzido. Apresentamos os resultados mais relevantes organizados em categorias: o trabalho em equipe, os aspectos negativos e positivos do programa, os conceitos de adolescente e de adolescente em conflito com a lei, a proposta pedagógica e as concepções de emancipação, de ressocialização e de protagonismo juvenil que norteiam as atividades desenvolvidas no programa.

  10. La gestión en modalidades de programas a distancia. Estudio de caso

    Directory of Open Access Journals (Sweden)

    Verónica García Martínez

    2009-10-01

    Full Text Available La gestión es un aspecto determinante en cualquier estrategia aplicada en las organizaciones educativas. Puede hacer la diferencia entre el éxito y el fracaso de una política o programa. Por desgracia, es difícil de asir, incluso de advertir. Es importante que se realicen estudios orientados a evidenciar su trascendencia, lo que puede proporcionar recursos administrativos tendentes a mejorar los procesos. En el presente artículo se exponen los resultados de un estudio realizado a programas a distancia de una institución de educación superior del estado de Tabasco, como parte de un proyecto mayor en el que se busca identificar factores limitantes o motivadores del desempeño de programas no convencionales. El ejercicio analítico se basó en una propuesta de modelo de gestión, y los datos se recogieron a través de los documentos que fundamentan la modalidad y de entrevistas con personal de los programas. Los resultados apuntan a que los problemas de gestión en las modalidades no convencionales se van resolviendo en la medida en que surgen, debido a la falta de lineamientos institucionales expresos, y a fin de asegurar el avance de los programas educativos, lo que denota la necesidad de atender este aspecto.

  11. Análisis de los Programas de Doctorado con Mención de Calidad

    Directory of Open Access Journals (Sweden)

    Tania Ariza

    2012-12-01

    Full Text Available La Mención de Calidad, concedida por la Agencia Nacional de Evaluación de la Calidad y Acreditación, supuso el reconocimiento a la solvencia científico-técnica y formadora de los programas de doctorado de las universidades españolas. Desde el curso 2003-2004, el número de programas con esta distinción aumentó en un 60%. Se analizaron 671 programas de doctorado a los que se les concedió la Mención de Calidad en la última convocatoria de 2007. La información se recogió a través de las páginas webs de todos los programas, la legislación de la universidad a la que pertenecen y a partir de una encuesta online enviada a los coordinadores. En los resultados se observan aspectos relacionados con los rasgos generales de los programas de doctorado, rasgos comunes entre periodo formativo e investigador, rasgos propios de periodo de máster, y por último, rasgos propios del periodo investigador. Finalmente, se discuten estos rasgos estableciendo diferencias entre ambos periodos

  12. Heavy Water Reactor; Reacteurs a eau lourde

    Energy Technology Data Exchange (ETDEWEB)

    Yu, St.; HOpwood, J.; Meneley, D. [Energie Atomique du Canada (Canada)

    2000-04-01

    This document deals with the Heavy Water Reactor (HWR) technology and especially the Candu (Canada Deuterium Uranium) reactor. This reactors type offers many advantages that promote them for the future. General concepts, a description of the Candu nuclear power plants, the safety systems, the fuel cycle and economical and environmental aspects are included. (A.L.B.)

  13. Heat-pipe thermionic reactor concept

    DEFF Research Database (Denmark)

    Storm Pedersen, E.

    1967-01-01

    Main components are reactor core, heat pipe, thermionic converter, secondary cooling system, and waste heat radiator; thermal power generated in reactor core is transported by heat pipes to thermionic converters located outside reactor core behind radiation shield; thermionic emitters are in direct...

  14. Some new viewpoints in reactor noise analysis

    Institute of Scientific and Technical Information of China (English)

    罗征培; 李富; 等

    1996-01-01

    It is propsed that the linearity criterion and order criterion via frequency spectrum features without any limitation of the model's phase can be used in reactor noise analysis.The time constant,natural frequency as well as the recovered transfer function of reactors can bhe obtained via the analyzable model based on reactor noise.

  15. Operating Modes Of Chemical Reactors Of Polymerization

    Directory of Open Access Journals (Sweden)

    Meruyert Berdieva

    2012-05-01

    Full Text Available In the work the issues of stable technological modes of operation of main devices of producing polysterol reactors have been researched as well as modes of stable operation of a chemical reactor have been presented, which enables to create optimum mode parameters of polymerization process, to prevent emergency situations of chemical reactor operation in industrial conditions.

  16. Laminar Entrained Flow Reactor (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2014-02-01

    The Laminar Entrained Flow Reactor (LEFR) is a modular, lab scale, single-user reactor for the study of catalytic fast pyrolysis (CFP). This system can be employed to study a variety of reactor conditions for both in situ and ex situ CFP.

  17. Silica-Immobilized Enzyme Reactors

    Science.gov (United States)

    2007-08-01

    immobilized artificial membrane chromatography and lysophospholipid micellar electrokinetic chromatography . J. Chromatogr. A 1998, 810, 95-103. 50...Journal of Liquid Chromatography and Related Technologies. Air Force Research Laboratory Materials and Manufacturing Directorate Airbase...immobilized enzyme reactors (IMERs) can also be integrated directly to further analytical methods such as liquid chromatography or mass spectrometry.[6] In

  18. Nozzle for electric dispersion reactor

    Science.gov (United States)

    Sisson, Warren G.; Basaran, Osman A.; Harris, Michael T.

    1995-01-01

    A nozzle for an electric dispersion reactor includes two concentric electrodes, the inner one of the two delivering disperse phase fluid into a continuous phase fluid. A potential difference generated by a voltage source creates a dispersing electric field at the end of the inner electrode.

  19. A Simple Tubular Reactor Experiment.

    Science.gov (United States)

    Hudgins, Robert R.; Cayrol, Bertrand

    1981-01-01

    Using the hydrolysis of crystal violet dye by sodium hydroxide as an example, the theory, apparatus, and procedure for a laboratory demonstration of tubular reactor behavior are described. The reaction presented can occur at room temperature and features a color change to reinforce measured results. (WB)

  20. High temperature catalytic membrane reactors

    Energy Technology Data Exchange (ETDEWEB)

    1990-03-01

    Current state-of-the-art inorganic oxide membranes offer the potential of being modified to yield catalytic properties. The resulting modules may be configured to simultaneously induce catalytic reactions with product concentration and separation in a single processing step. Processes utilizing such catalytically active membrane reactors have the potential for dramatically increasing yield reactions which are currently limited by either thermodynamic equilibria, product inhibition, or kinetic selectivity. Examples of commercial interest include hydrogenation, dehydrogenation, partial and selective oxidation, hydrations, hydrocarbon cracking, olefin metathesis, hydroformylation, and olefin polymerization. A large portion of the most significant reactions fall into the category of high temperature, gas phase chemical and petrochemical processes. Microporous oxide membranes are well suited for these applications. A program is proposed to investigate selected model reactions of commercial interest (i.e. dehydrogenation of ethylbenzene to styrene and dehydrogenation of butane to butadiene) using a high temperature catalytic membrane reactor. Membranes will be developed, reaction dynamics characterized, and production processes developed, culminating in laboratory-scale demonstration of technical and economic feasibility. As a result, the anticipated increased yield per reactor pass economic incentives are envisioned. First, a large decrease in the temperature required to obtain high yield should be possible because of the reduced driving force requirement. Significantly higher conversion per pass implies a reduced recycle ratio, as well as reduced reactor size. Both factors result in reduced capital costs, as well as savings in cost of reactants and energy.

  1. Nuclear Reactors and Technology; (USA)

    Energy Technology Data Exchange (ETDEWEB)

    Cason, D.L.; Hicks, S.C. (eds.)

    1991-01-01

    Nuclear Reactors and Technology (NRT) announces on a monthly basis the current worldwide information available from the open literature on nuclear reactors and technology, including all aspects of power reactors, components and accessories, fuel elements, control systems, and materials. This publication contains the abstracts of DOE reports, journal articles, conference papers, patents, theses, and monographs added to the Energy Science and Technology Database (EDB) during the past month. Also included are US information obtained through acquisition programs or interagency agreements and international information obtained through the International Energy Agency's Energy Technology Data Exchange or government-to-government agreements. The digests in NRT and other citations to information on nuclear reactors back to 1948 are available for online searching and retrieval on EDB and Nuclear Science Abstracts (NSA) database. Current information, added daily to EDB, is available to DOE and its contractors through the DOE integrated Technical Information System. Customized profiles can be developed to provide current information to meet each user's needs.

  2. British high flux beam reactor.

    Science.gov (United States)

    Egelstaff, P A

    1970-10-24

    The neutron scattering technique has become an accepted method for the study of condensed matter. Because of the great scientific and technical value of neutron experiments and the growing body of users, several proposals have been made during the past decade for a nuclear reactor devoted primarily to this technique. This article reviews the reasons for and history behind these proposals.

  3. EFECTO DEL “PROGRAMA COGNITIVO CONDUCTUAL CAMINOS” PARA MEJORAR LA RESILIENCIA EN LAS ADOLESCENTES DE LA CASA HOGAR “TORRE FUERTE” - 2015

    OpenAIRE

    MELÉNDEZ VILCA, ERIKA ANGÉLICA

    2016-01-01

    CONCEPTO DE PROGRAMA DE INTERVENCIÓN PROGRAMAS DE INTERVENCIÓN Y LA RESILIENCIA PROGRAMA COGNITIVO-CONDUCTUAL Y LA RESILIENCIA ¿QUÉ ES UN “PROGRAMA COGNITIVO CONDUCTUAL CAMINOS”? CÓMO APLICAR EL “PROGRAMA COGNITIVO CONDUCTUAL CAMINOS” TIPOS DE PROGRAMAS DE INTERVENCIÓN OTRAS INTERVENCIÓNES DE RESILIENCIA EN POBLACIÓN ADOLESCENTE Y OTRAS EDADES RESILIENCIA ORÍGENES DEL CONCEPTO RESILIENCIA CONCEPTO DE RESILIENCIA LA RESILIENCIA COMO PROCESO PSICOLÓGICO. APORTES TEÓRICOS LA RESILIENCIA Y LA SAL...

  4. EFECTO DEL “PROGRAMA COGNITIVO CONDUCTUAL CAMINOS” PARA MEJORAR LA RESILIENCIA EN LAS ADOLESCENTES DE LA CASA HOGAR “TORRE FUERTE” - 2015

    OpenAIRE

    MELÉNDEZ VILCA, ERIKA ANGÉLICA

    2016-01-01

    CONCEPTO DE PROGRAMA DE INTERVENCIÓN PROGRAMAS DE INTERVENCIÓN Y LA RESILIENCIA PROGRAMA COGNITIVO-CONDUCTUAL Y LA RESILIENCIA ¿QUÉ ES UN “PROGRAMA COGNITIVO CONDUCTUAL CAMINOS”? CÓMO APLICAR EL “PROGRAMA COGNITIVO CONDUCTUAL CAMINOS” TIPOS DE PROGRAMAS DE INTERVENCIÓN OTRAS INTERVENCIÓNES DE RESILIENCIA EN POBLACIÓN ADOLESCENTE Y OTRAS EDADES RESILIENCIA ORÍGENES DEL CONCEPTO RESILIENCIA CONCEPTO DE RESILIENCIA LA RESILIENCIA COMO PROCESO PSICOLÓGICO. APORTES TEÓRICOS LA RESILIENCIA Y LA SAL...

  5. Nuclear reactors and fuel cycle

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2014-07-01

    The Nuclear Fuel Center (CCN) of IPEN produces nuclear fuel for the continuous operation of the IEA-R1 research reactor of IPEN. The serial production started in 1988, when the first nuclear fuel element was delivered for IEA-R1. In 2011, CCN proudly presents the 100{sup th} nuclear fuel element produced. Besides routine production, development of new technologies is also a permanent concern at CCN. In 2005, U{sub 3}O{sub 8} were replaced by U{sub 3}Si{sub 2}-based fuels, and the research of U Mo is currently under investigation. Additionally, the Brazilian Multipurpose Research Reactor (RMB), whose project will rely on the CCN for supplying fuel and uranium targets. Evolving from an annual production from 10 to 70 nuclear fuel elements, plus a thousand uranium targets, is a huge and challenging task. To accomplish it, a new and modern Nuclear Fuel Factory is being concluded, and it will provide not only structure for scaling up, but also a safer and greener production. The Nuclear Engineering Center has shown, along several years, expertise in the field of nuclear, energy systems and correlated areas. Due to the experience obtained during decades in research and technological development at Brazilian Nuclear Program, personnel has been trained and started to actively participate in design of the main system that will compose the Brazilian Multipurpose Reactor (RMB) which will make Brazil self-sufficient in production of radiopharmaceuticals. The institution has participated in the monitoring and technical support concerning the safety, licensing and modernization of the research reactors IPEN/MB-01 and IEA-R1. Along the last two decades, numerous specialized services of engineering for the Brazilian nuclear power plants Angra 1 and Angra 2 have been carried out. The contribution in service, research, training, and teaching in addition to the development of many related technologies applied to nuclear engineering and correlated areas enable the institution to

  6. A new MTR fuel for a new MTR reactor: UMo for the Jules Horowitz reactor

    Energy Technology Data Exchange (ETDEWEB)

    Guigon, B. [CEA Cadarache, F-13108 Saint Paul lez Durance (France); Vacelet, H. [CERCA, Romans (France); Dornbusch, D. [Technicatome, Aix en Provence (France)

    2000-07-01

    Within some years, the Jules Horowitz Reactor will be the only working experimental reactor (material and fuel testing reactor) in France. It will have to provide facilities for a wide range of needs from activation analysis to power reactor fuel qualification. In this paper the main characteristics of the Jules Horowitz Reactor are presented. Safety criteria are explained. Finally, merits and disadvantages of UMo compared to the standard U{sub 3}Si{sub 2} fuel are discussed. (author)

  7. Los Programas de Investigación en Contabilidad

    Directory of Open Access Journals (Sweden)

    Leandro Cañibano Calvo

    1997-12-01

    Full Text Available Este trabajo constituye un intento de profundizar en la clasificación de los programas de investigación contables, originalmente planteados por Cañibano (1974 y 1975 como legalista, económico y formalizado, actualizando sus contenidos y tendencias, para concluir que los tres subsisten en la práctica científica actual, si bien han experimentado importantes desarrollos, porque las dos últimas décadas han visto una verdadera eclosión de investigación contable, tratando de explicar la relevancia que tienen en la economía empresarial y en los mercados de capitales, tanto la información contable como las normas que tratan de regularla. En la tradición legalista se profundiza hasta encontrar los fundamentos del denominado "marco conceptual". En la tradición económica se describen aproximaciones diferentes hasta llegar a la teoría positiva de la contabilidad. Por último, en la tradición formalizadora, se describen modelos de investigación utilizados habitualmente en contabilidad y finanzas como el de los mercados eficientes o la teoría de la agencia. En suma, se trata de construir una taxonomía válida para recoger los diferentes enfoques científicos que conviven o coexisten en la investigación contable de los años 80 y 90. This paper aims to further explore the classification of accounting research programmes, originally put forth by Cañibano (1974 and 1975, as legalistic, economic and formalized, and to update their contents and trends. It concludes that the three types of accounting research programmes subsist in current scientific research, which has experienced important developments over the last two decades, and explains the relevance that reporting and accounting standards have on business economics and capital markets. In traditional legalistic research all aspects are studied until the "conceptual framework" is found. In traditional economic research different approaches are described to arrive at positive accounting

  8. Heterogeneous Recycling in Fast Reactors

    Energy Technology Data Exchange (ETDEWEB)

    Forget, Benoit; Pope, Michael; Piet, Steven J.; Driscoll, Michael

    2012-07-30

    Current sodium fast reactor (SFR) designs have avoided the use of depleted uranium blankets over concerns of creating weapons grade plutonium. While reducing proliferation risks, this restrains the reactor design space considerably. This project will analyze various blanket and transmutation target configurations that could broaden the design space while still addressing the non-proliferation issues. The blanket designs will be assessed based on the transmutation efficiency of key minor actinide (MA) isotopes and also on mitigation of associated proliferation risks. This study will also evaluate SFR core performance under different scenarios in which depleted uranium blankets are modified to include minor actinides with or without moderators (e.g. BeO, MgO, B4C, and hydrides). This will be done in an effort to increase the sustainability of the reactor and increase its power density while still offering a proliferation resistant design with the capability of burning MA waste produced from light water reactors (LWRs). Researchers will also analyze the use of recycled (as opposed to depleted) uranium in the blankets. The various designs will compare MA transmutation efficiency, plutonium breeding characteristics, proliferation risk, shutdown margins and reactivity coefficients with a current reference sodium fast reactor design employing homogeneous recycling. The team will also evaluate the out-of-core accumulation and/or burn-down rates of MAs and plutonium isotopes on a cycle-by-cycle basis. This cycle-by-cycle information will be produced in a format readily usable by the fuel cycle systems analysis code, VISION, for assessment of the sustainability of the deployment scenarios.

  9. Roles de enfermería en los programas de trasplante de Colombia

    OpenAIRE

    Forero Ariza, Erica Mildred

    2012-01-01

    Los Programas de Trasplante, constituyen un área en la cual los profesionales de enfermería se desempeñan para mostrar los aportes que desde la disciplina de enfermería brindan para el restablecimiento de salud de las personas. Existe un vacío en la identificación de los roles que desempeñan las enfermeras en los programas de trasplante, por lo que se desarrolló este estudio cuyo objetivo fue describir los roles que desempeñan los profesionales de enfermería en los programas de tras...

  10. Los bonos educativos en el programa Paces en Colombia, 1992-1998: una experiencia fallida

    Directory of Open Access Journals (Sweden)

    Piedad Patricia Restrepo

    2004-07-01

    Full Text Available Esta investigación muestra que, a través de un análisis del diseño institucional e implementación, el programa de bonos educativos Paces en Colombia, en el periodo 1992-1998, estuvo lejos de cumplir sus objetivos de corto y largo plazo. La no inclusión dentro del valor del bono del costo de oportunidad por los ingresos laborales perdidos, la escasa regulación y monitoreo de los colegios participantes, en especial de aquellos que surgieron a raíz del programa, son algunos de los factores que incidieron en sus resultados. Al final, se presentan algunas propuestas para mejorar el diseño de este tipo de programas que permitan alcanzar los objetivos planteados en cuanto a cobertura, calidad y equidad.

  11. Efeitos do Programa Bolsa Família na fecundidade das beneficiárias

    Directory of Open Access Journals (Sweden)

    Patrícia Simões

    2012-12-01

    Full Text Available Procuramos verificar se o Programa Bolsa Família contribui para aumentar a fecundidade entre as beneficiárias, visto que o aumento no tamanho da família, até certo limite, leva ao aumento dos benefícios. Utilizamos um modelo de contagem no qual testamos e tratamos a possibilidade de endogeneidade da variável de política por dois métodos distintos (dois-estágios estilo Heckman e GMM, além de incluir diversos cofatores da PNDS (2006. Os resultados mostram que o PBF não apresentou este efeito, pelo menos no início do programa. Pelo contrário, beneficiárias pareciam mais inclinadas a trocar quantidade por qualidade do que não beneficiárias elegíveis ao programa.

  12. Um olhar neoinstitucionalista para o Programa Bolsa Família

    Directory of Open Access Journals (Sweden)

    Luísa de Azevedo Nazareno

    2015-03-01

    Full Text Available O Programa Bolsa Família (PBF é um programa de transferência condicionada de renda que vem sendo implementado no Brasil desde 2003 e atinge hoje milhões de famílias, tendo trazido inovações importantes tanto no desenho do programa como em sua gestão. Seus impactos sociais positivos têm sido amplamente discutidos pela literatura, contudo, o PBF também deve ser analisado sob o ponto de vista de inovações institucionais. Neste trabalho, partimos do neoinstitucionalismo histórico para discutir a gestão do PBF e algumas de suas inovações, tais como a criação do Cadastro Único e a gestão compartilhada e descentralizada.

  13. Impacto de la asesoría del programa Cree para Cálculo I

    Directory of Open Access Journals (Sweden)

    Guillermo Cervantes Campo

    2014-01-01

    Full Text Available En este documento se presentan los resultados obtenidos en el marco del programa de asesorías CREE para estudiantes de Cálculo I, curso que se imparte en el primer semestre de los programas de Ingeniería en la Universidad del Norte, en torno a su incidencia sobre las tasas de mortalidad académica. El programa de asesorías CREE, para estudiantes de Cálculo I consta de dos actividades principales: los cursos de apoyo instruccional, con una intensidad de dos horas semanales, y las clases de preparación de exámenes, con una intensidad de tres a cuatro horas una semana antes da cada examen. Estas asesorías ofrecen a los estudiantes posibilidades de interactuar con otros docentes que apoyan su proceso de formación académica.

  14. Reactor monitoring and safeguards using antineutrino detectors

    CERN Document Server

    Bowden, N S

    2008-01-01

    Nuclear reactors have served as the antineutrino source for many fundamental physics experiments. The techniques developed by these experiments make it possible to use these very weakly interacting particles for a practical purpose. The large flux of antineutrinos that leaves a reactor carries information about two quantities of interest for safeguards: the reactor power and fissile inventory. Measurements made with antineutrino detectors could therefore offer an alternative means for verifying the power history and fissile inventory of a reactors, as part of International Atomic Energy Agency (IAEA) and other reactor safeguards regimes. Several efforts to develop this monitoring technique are underway across the globe.

  15. Neutrino Mixing Discriminates Geo-reactor Models

    CERN Document Server

    Dye, S T

    2009-01-01

    Geo-reactor models suggest the existence of natural nuclear reactors at different deep-earth locations with loosely defined output power. Reactor fission products undergo beta decay with the emission of electron antineutrinos, which routinely escape the earth. Neutrino mixing distorts the energy spectrum of the electron antineutrinos. Characteristics of the distorted spectrum observed at the earth's surface could specify the location of a geo-reactor, discriminating the models and facilitating more precise power measurement. The existence of a geo-reactor with known position could enable a precision measurement of the neutrino oscillation parameter delta-mass-squared.

  16. Reactor assessments of advanced bumpy torus configurations

    Energy Technology Data Exchange (ETDEWEB)

    Uckan, N.A.; Owen, L.W.; Spong, D.A.; Miller, R.L.; Ard, W.B.; Pipkins, J.F.; Schmitt, R.J.

    1983-01-01

    Recently, several configurational approaches and concept improvement schemes were introduced for enhancing the performance of the basic ELMO Bumpy Torus (EBT) concept and for improving its reactor potential. These configurations include planar racetrack and square geometries, Andreoletti coil systems, and bumpy torus-stellarator hybrids (which include twisted racetrack and helical axis stellarator-snakey torus). Preliminary evaluations of reactor implications of each of these configurations have been carried out based on magnetics (vacuum) calculations, transport and scaling relationships, and stability properties. Results indicate favorable reactor projections with a significant reduction in reactor physical size as compared to conventional EBT reactor designs carried out in the past.

  17. Refurbishment of existing research reactors for BNCT

    Energy Technology Data Exchange (ETDEWEB)

    Jatuff, F.E.; Gessaghi, V. [INVAP S.E., de Bariloche (Argentina)

    1997-12-01

    Some research reactors have been selected for the development of boron neutron capture therapy (BNCT) in the United States like the Massachusetts Institute of Technology research reactor, the University of Missouri research reactor 2 or the Brookhaven Medical Research Reactor, among others. These reactors have received excellent analyses and designs to accommodate extremely optimized beam shaping assemblies (BSAs) for the proper tuning of neutron spectra and absorption of undesired particles such as photons and fast neutrons. Due to the importance of BNCT in these facilities, the physicists and engineers have used many degrees of freedom for the optimization process.

  18. Tandem Mirror Reactor Systems Code (Version I)

    Energy Technology Data Exchange (ETDEWEB)

    Reid, R.L.; Finn, P.A.; Gohar, M.Y.; Barrett, R.J.; Gorker, G.E.; Spampinaton, P.T.; Bulmer, R.H.; Dorn, D.W.; Perkins, L.J.; Ghose, S.

    1985-09-01

    A computer code was developed to model a Tandem Mirror Reactor. Ths is the first Tandem Mirror Reactor model to couple, in detail, the highly linked physics, magnetics, and neutronic analysis into a single code. This report describes the code architecture, provides a summary description of the modules comprising the code, and includes an example execution of the Tandem Mirror Reactor Systems Code. Results from this code for two sensitivity studies are also included. These studies are: (1) to determine the impact of center cell plasma radius, length, and ion temperature on reactor cost and performance at constant fusion power; and (2) to determine the impact of reactor power level on cost.

  19. Savannah River Site production reactor technical specifications. K Production Reactor

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-02-01

    These technical specifications are explicit restrictions on the operation of the Savannah River Site K Production Reactor. They are designed to preserve the validity of the plant safety analysis by ensuring that the plant is operated within the required conditions bounded by the analysis, and with the operable equipment that is assumed to mitigate the consequences of an accident. Technical specifications preserve the primary success path relied upon to detect and respond to accidents. This report describes requirements on thermal-hydraulic limits; limiting conditions for operation and surveillance for the reactor, power distribution control, instrumentation, process water system, emergency cooling and emergency shutdown systems, confinement systems, plant systems, electrical systems, components handling, and special test exceptions; design features; and administrative controls.

  20. CFD Simulation on Ethylene Furnace Reactor Tubes

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Different mathematical models for ethylene furnace reactor tubes were reviewed. On the basis of these models a new mathematical simulation approach for reactor tubes based on computational fluid dynamics (CFD) technique was presented. This approach took the flow, heat transfer, mass transfer and thermal cracking reactions in the reactor tubes into consideration. The coupled reactor model was solved with the SIMPLE algorithm. Some detailed information about the flow field, temperature field and concentration distribution in the reactor tubes was obtained, revealing the basic characteristics of the hydrodynamic phenomena and reaction behavior in the reactor tubes. The CFD approach provides the necessary information for conclusive decisions regarding the production optimization, the design and improvement of reactor tubes, and the new techniques implementation.

  1. APORTE DEL PROGRAMA EDUCACIÓN Y CONTEXTOS SOCIOCULTURALES A LA INVESTIGACIÓN EDUCATIVA

    OpenAIRE

    Cordero Cordero, Teresita

    2012-01-01

    La gestión de los programas de investigación, en el Instituto de Investigación en Educación (INIE) dela Universidad de Costa Rica (UCR), implica tareas diversas y colaboraciones que articulan la promociónde la investigación, según las políticas y los ejes institucionales. En este contexto, el ProgramaEducación y Contextos Socioculturales describe las actividades realizadas para impulsar el estudio deprocesos educativos desde una perspectiva histórica cultural. En este trabajo, se mencionan di...

  2. Programa Bolsa Família e o empoderamento das mulheres em Minas Gerais

    OpenAIRE

    Moreira, Nathalia Carvalho

    2010-01-01

    O empoderamento na perspectiva de gênero emergiu como um tema importante no campo das políticas públicas. Por isso, este trabalho teve como objetivo analisar as dimensões do empoderamento alcançadas pelas mulheres beneficiárias do Programa de Transferência de Renda, conhecido como “Programa Bolsa Família”, a percepção dos agentes sociais dos Centros de Referência de Assistência Social (CRAS) sobre o empoderamento das mulheres, assim como o impacto da transferência de renda sobre o...

  3. Efectos de un programa de entrenamiento funcional en la musculatura core en mujeres con fibromialgia

    OpenAIRE

    Pinzón, I.D.

    2015-01-01

    El objetivo de este artículo es evaluar los efectos de un programa de entrenamiento funcional de músculos core dirigido a las mujeres con fibromialgia. Se realizó un ensayo cuasiexperimental de tipo antes y después de una intervención durante 20 semanas, con frecuencia de 3 días/semana y una duración de 60 minutos cada sesión. Los resultados sugieren que el programa de entrenamiento funcional de músculos core es eficaz en el aumento de la fuerza muscular, la modulación del dolor, la optimizac...

  4. Programa jóvenes con más y mejor trabajo

    OpenAIRE

    Brown, Brenda

    2017-01-01

    En el presente trabajo se explica cómo se realizó la ejecución del Programa Jóvenes con Más y Mejor Trabajo en Ciudad de Buenos Aires. El estudio se realizó a partir de entrevistas a funcionarios públicos, talleristas y a los jóvenes beneficiarios del programa. Fil: Brown, Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Centro de Estudios E Investigaciones Laborales; Argentina

  5. TEORIA SINTÁTICA: DE UMA PERSPECTIVA DE "-ISMOS" PARA UMA PERSPECTIVA DE "PROGRAMAS"

    OpenAIRE

    Kato Mary Aizawa

    1997-01-01

    Este trabalho tenta mostrar que os desenvolvimentos nas ciências lingüísticas seriam mais bem compreendidos como estágios de um único programa de pesquisa do que como diferentes -ismos. A primeira parte contém uma retrospectiva das crenças estruturalistas sobre a universalidade e a equivalência das línguas humanas e sua busca por universais sintáticos. A parte referente ao programa gerativo, por seu turno, tenta responder porque a língua é uma faculdade universal na espécie humana e levanta q...

  6. El color, en el programa de mano de la Metro-Goldwyn-Mayer

    OpenAIRE

    Dr. James F. Willis García-Talavera

    2002-01-01

    La estandarización de formatos de programas de mano, practicada por Metro-Goldwyn-Mayer al final de la década de los treinta, trajo consigo la arrolladora llegada del color, como carácter peculiar e inseparable del nuevo modelo, origen del matiz de opinión que, a partir de ese momento, generarían los nuevos ejemplares e ingrediente esencial en la obtención del pretendido impacto visual. Esa transformación del programa de mano supuso el ascenso de un punto en la escala de iconocidad gráfica –i...

  7. Dolor en personas ancianas afrodescendientes: resultados cualitativos de un programa domiciliario adaptado culturalmente

    OpenAIRE

    2014-01-01

    Objetivo: Describir resultados cualitativos de un programa de visita domiciliaria adaptado culturalmente sobre el dolor en una población de ancianos afrodescendientes en Guapi-Colombia. Metodología: Participaron 47 personas en situación de discapacidad y pobreza. El programa consta de seis visitas domiciliarias con intervalo de 15 días. Desarrollado por enfermeras expertas en geronto-geriatría y competencia-cultural. Trabajo etnográfico con observación-participante registrado en diarios de ca...

  8. Programa Nacional de Diagnóstico Precoce: Relatório 2012

    OpenAIRE

    2013-01-01

    Comissão Executiva do Diagnóstico Precoce: Laura Vilarinho, Paulo Pinho e Costa, Luísa Diogo. Relatório do Programa Nacional de Diagnóstico Precoce (PNDP) relativo ao ano de 2012. O PNDP visa o rastreio neonatal de doenças cujo tratamento precoce permita precaver, nas crianças rastreadas, descompensações metabólicas graves, evitando o atraso mental e alterações neurológicas definitivas. Das principais atividades relacionadas com o desenvolvimento do Programa durante o ano de 2012, destaca-...

  9. Por un futuro mejor: programa de promoción de la salud para Afrodescendientes

    Directory of Open Access Journals (Sweden)

    Vilma Florisa Velásquez Gutierrez

    2016-01-01

    Full Text Available Introducción: Las familias afrocolombianas se caracterizan por vivir en contextos de alta vulnerabilidad, que requieren su fortalecimiento con programas en promoción de la salud. Objetivo: Construir un programa de promoción de la salud, con familias afrocolombianas en situación de pobreza en Tumaco, año 2012. Materiales y Métodos: Investigación - Acción - Participativa, conformando un grupo y comisión de seguimiento, esto permitió la adaptación de la propuesta de Martí a través de cuatro etapas en el proceso. Resultados: El programa de Promoción de la Salud fue una construcción colectiva entre el grupo Investigación Acción Participación, la comisión de seguimiento y las familias, realizada en cuatro fases: Etapa 1: Inicio y preparación del campo. Etapa 2. Diagnóstico: Aproximación al universo de las familias afrocolombianas. Etapa 3. Construcción y aplicación de programa de promoción de la salud: “Del dicho al hecho superamos los trechos”. Etapa 4. Evaluación y proyección del programa: “Evaluando vamos terminando”. Discusión y Conclusiones: La construcción social del programa de promoción de la salud, así como el abordaje pedagógico y didáctico para el desarrollo del mismo, se desarrolló en función del contexto cultural, desde la perspectiva de la Investigación Acción Participación. El programa “Por un futuro mejor” permitió crear nuevos conocimientos a familias, líderes y profesionales de la salud a partir de la realidad e intercambio de saberes, con acciones dirigidas a fortalecer el amor propio, la comunicación, el entorno y la participación, con el fin de mejorar las condiciones de salud.  Cómo citar este artículo: Velásquez VF, López AL, Puerto AH, Cataño N, Muñoz AI. Por un futuro mejor: programa de promoción de la salud para Afrodescendientes. Rev Cuid. 2016; 7(1:1185-94. http://dx.doi.org/10.15649/cuidarte.v7i1.239

  10. “Entrenamiento de la flexibilidad en fútbol: programa de estiramientos preventivos”

    OpenAIRE

    Ortega Sanz, Daniel

    2014-01-01

    En el presente trabajo se desarrolla un programa de estiramientos preventivos para el mantenimiento o desarrollo de la flexibilidad en fútbol. El contexto en el que se desarrolla este programa es el Club de Fútbol Pozuelo de Alarcón durante la temporada 2013-2014. El equipo en el que se lleva a cabo es Femenino A, actualmente en 2ª división. Este está formado por jugadoras sénior de entre 20 y 28 años.

  11. Autismo y Programa Son-Rise: Intervención sobre un caso

    OpenAIRE

    López Camarero, Irene

    2013-01-01

    En este documento se estudian los distintos tipos de trastorno del espectro autista, distinguiendo las características de cada uno de ellos y las posibles causas que pueden originarlos. Partiendo de esta base, se plantean distintos métodos o programas existentes en nuestra sociedad para trabajar con este colectivo y lograr que desarrollen sus capacidades en el máximo nivel posible. Tras una breve explicación de algunos de ellos, nos centramos en el Programa Son-Rise, método poco conocid...

  12. Herramientas comunicacionales para la acción participativa : Programa Nacional Municipios y Comunidades Saludables

    OpenAIRE

    ROSSI, Patricia

    2016-01-01

    El Programa Nacional Municipios y Comunidades Saludables (PNMCS) se enmarca en las políticas sanitarias del Ministerio de Salud de la Nación destinadas a fomentar la promoción de la salud y los ambientes saludables en los municipios del país y a empoderar la población en ese cambio. La comunicación con las autoridades y referentes locales es pues un punto fundamental para el programa. La elaboración de herramientas comunicacionales destinadas a la formación de recursos humanos que c...

  13. Participación estudiantil en programas ambientales en instituciones de educación superior

    OpenAIRE

    Sandra Elizabeth Prado Fuentes; Enrique Pérez Campuzano

    2011-01-01

    El objetivo del artículo es analizar los factores que propician e impiden la participación de los estudiantes en el programa de manejo de residuos de la Universidad Autónoma Metropolitana, unidad Azcapotzalco. El trabajo utilizó métodos cualitativos. Se aplicaron entrevistas semiestructuradas con personal del programa, autoridades universitarias y representantes estudiantiles, y se realizaron grupos focales con alumnos. La participación se planteó desde la perspectiva de los niveles de partic...

  14. Un Programa de Intervención Individualizado con Entrenadores de Fútbol

    OpenAIRE

    Soriano, Gerard; Ramis, Yago; Cruz, Jaume; Sousa, Catarina

    2014-01-01

    El objetivo del presente estudio fue el diseño y evaluación de un programa de intervención individualizado para fomentar un estilo de comunicación más positivo en los entrenadores y favorecer la satisfacción de las necesidades psicológicas básicas de los jugadores. Este estudio incorpora la mini teoría de las necesidades psicológicas básicas de la teoría de la autodeterminación en los programas individualizados con entrenadores. Utilizamos el CBAS como medida observacional p...

  15. Propuesta de indicadores para valorar la calidad de los programas de educación preescolar

    OpenAIRE

    Rivas-Borrell, S. (Sonia)

    2004-01-01

    El objetivo de este artículo es dar a conocer dos aspectos: por un lado, justificar la dificultad que existe a la hora de plantear un programa educativo de calidad para la etapa de educación preescolar. Por otro lado, derivado de esta dificultad, el artículo enuncia los indicadores a los que se puede prestar atención para poder identificar un programa de calidad en educación preescolar. Se espera que esta información sea clarificadora para padres y educadores, en orden a ...

  16. El programa de mejora genética de Pinus pinaster en Galicia

    OpenAIRE

    Zas, R; Merlo, E.

    2008-01-01

    El pino marítimo es una de las especies más importantes del sector forestal gallego. Fruto de esta importancia, desde los años 80 se lleva a cabo un programa de mejora cuyo fin último es el abastecimiento de semilla de alta calidad genética pasa su uso en repoblación. En este trabajo se revisan las actuaciones realizadas al respecto tanto en la zona costera como en el interior de Galicia. Se describe el dispositivo experimental del programa, los objetivos y la estra...

  17. Efetividade do Programa de Fisioterapia Aquática na amplitude de movimento em idosas

    OpenAIRE

    Eduardo Aguilar Arca; Alexandre Fiorelli; Alberto de Vitta; Maria Amélia Ximenes; Camila Gimenes; Jesus Carlos Andreo

    2014-01-01

    O objetivo deste estudo foi verificar os efeitos de um programa de fisioterapia aquática na amplitude de movimento em mulheres idosas. Estudo quase-experimental, sem grupo-controle, com 16 idosas, avaliadas em três momentos da intervenção. Verificou-se que o programa de fisioterapia aquática produziu efeitos expressivos no ganho da amplitude de movimento em todas as articulações e eixos de movimentos estudados, além do engajamento de pessoas idosas em atividades físicas importante para essa f...

  18. Estimulación de la Inteligencia Emocional en mayores: El programa PECI-PM

    OpenAIRE

    Mª del Carmen Pérez-Fuentes; Mª del Mar Molero; Gázquez, José J.; Soler, Francisco J.

    2014-01-01

    El programa de Estimulación Cognitiva e Inteligencia Emocional para personas mayores (PECI-PM), combina técnicas de estimulación cognitiva con la intervención y estimulación sobre aspectos relacionados con la inteligencia emocional. El objetivo del presente trabajo es analizar los resultados obtenidos en inteligencia emocional, tras la primera fase de implementación del PECI-PM. Para ello, se contó con una muestra de 28 usuarios del programa, que habían completado 20 sesiones y participado en...

  19. Análisis de formulación del programa “Ser Pilo Paga”

    OpenAIRE

    Castro Rojas, Valentina

    2016-01-01

    El presente artículo busca analizar la formulación del programa “Ser Pilo Paga” (SPP) que hace parte de la política Nacional de educación superior. Para esto, se hará referencia a los conceptos de política pública y su ciclo, enfocándonos en la fase de formulación, para luego explicar las generalidades de la educación superior en Colombia. Asimismo se estudia en detalle, la base y el fundamento, al igual que la normatividad, y componentes del programa. Mediante el análisis de estos conceptos,...

  20. Entrevista al rector Jorge Enrique Silva en el programa Cara y Sello

    OpenAIRE

    Silva Duarte, Jorge Enrique

    2012-01-01

    Entrevista sobre emprendimiento y calidad en la educación superior al Rector de la Universidad EAN, Jorge Enrique Silva, en el programa de televisión colombiana Cara y Sello. La entrevista trata los temas de cultura emprendedora como un factor de desarrollo y su libro “Emprendedor”, el cual aborda el tema con mayor profundidad y nos muestra las características y elementos principales para una persona emprendedora. Un segundo tema es como la calidad de los programas y la utilización d...

  1. Efectos de un programa de entrenamiento funcional en la musculatura core en mujeres con fibromialgia

    OpenAIRE

    Pinzón, I.D.

    2015-01-01

    El objetivo de este artículo es evaluar los efectos de un programa de entrenamiento funcional de músculos core dirigido a las mujeres con fibromialgia. Se realizó un ensayo cuasiexperimental de tipo antes y después de una intervención durante 20 semanas, con frecuencia de 3 días/semana y una duración de 60 minutos cada sesión. Los resultados sugieren que el programa de entrenamiento funcional de músculos core es eficaz en el aumento de la fuerza muscular, la modulación del dolor, la optimizac...

  2. Programa de entrenamiento perceptivo-motor para mejorar la efectividad de la portera de balonmano

    Directory of Open Access Journals (Sweden)

    Antonio Ant\\u00FAnez Medina

    2010-01-01

    de forma consensuada, visionando los vídeos grabados. El ANOVA mostró diferencias (p < 0.05 entre las tres fases con respecto a la efectividad ante lanzamientos realizados desde el lateral derecho, el lateral izquierdo y el centro; efectividad ante lanzamientos con oposición en proximidad y a distancia; y efectividad global. La portera mejoró durante el momento de aplicación del programa de entrenamiento (p < 0.05. Y la mejora se mantuvo (p < 0.05 para las variables efectividad ante lanzamientos realizados desde el lateral derecho, el lateral izquierdo y el centro tras la retirada de dicho programa.

  3. Efetividade do Programa de Fisioterapia Aquática na amplitude de movimento em idosas

    Directory of Open Access Journals (Sweden)

    Eduardo Aguilar Arca

    2014-03-01

    Full Text Available O objetivo deste estudo foi verificar os efeitos de um programa de fisioterapia aquática na amplitude de movimento em mulheres idosas. Estudo quase-experimental, sem grupo-controle, com 16 idosas, avaliadas em três momentos da intervenção. Verificou-se que o programa de fisioterapia aquática produziu efeitos expressivos no ganho da amplitude de movimento em todas as articulações e eixos de movimentos estudados, além do engajamento de pessoas idosas em atividades físicas importante para essa fase da vida.

  4. El Programa de Desarrollo y Paz del Magdalena Medio y la Red Prodepaz

    Directory of Open Access Journals (Sweden)

    María del Rosario Saavedra

    2008-06-01

    Full Text Available Debido al largo y complejo conflicto armado que afecta a Colombia, han surgido en las diferentes regiones organizaciones que plantean alternativas para una convivencia en paz y un desarrollo compatible con la inclusión social. El Magdalena Medio cuenta con uno de los programas más vigorosos en esta materia. En este artículo la autora comparte su experiencia en este programa y expone los principales conceptos y características metodológicas que han permitido sostener y expandir este esfuerzo colectivo durante varios años.

  5. Manual de programación y control de programas de obra

    OpenAIRE

    Sánchez Henao, Julio César

    1997-01-01

    Pretendo con este libro que he denominado Manual de Programación y Control de Programas de Obra, que sea una herramienta importante para el aprendizaje fácil, claro y rápido, de los diferentes sistemas de programación a través de sus métodos de ordenamiento. En este se orienta a aquellas personas que deseen tener un conocimiento acerca de las formas de realizar una programación, que puede ser aplicable a programas específicos, rítmicos, de los diferentes procesos constructivos que como pr...

  6. La cultura organizacional y la efectividad de los programas de maestría

    OpenAIRE

    2009-01-01

    La finalidad de este estudio es investigar algunos factores de la organización que contribuyen al éxito de los alumnos de maestría. Se emplea una investigación basada en cuestionarios aplicados a alumnos en su etapa final de la tesis, en orden a estudiar la relación entre la orientación cultural de organización y la efectividad de los programas de maestría. El estudio reveló que la cultura de Clan se relaciona considerablemente con la efectividad de los programas de maestría. Se formulan algu...

  7. ANÁLISIS DEL PROGRAMA ESPECIAL CONCURRENTE PARA EL DESARROLLO RURAL SUSTENTABLE EN MÉXICO

    OpenAIRE

    Jorge Martín Cordero Torres

    2013-01-01

    Con la buena intención de elevar los niveles de vida de las personas y mejorar las condiciones de quienes habitan el espacio rural, no como una delimitación geográfica, sino como un conjunto de personas, cultura, territorio y actividades diversas; se instrumenta la política pública “programa especial concurrente para el desarrollo rural sustentable” emanado de la Ley de desarrollo rural sustentable y que incluye un conjunto de programas sectoriales relacionados con la promoción del medio rura...

  8. Cáncer de cuello uterino: análisis de la calidad de un programa

    OpenAIRE

    Cielo Noreña-Quiceno; Lucía Stella Tamayo-Acevedo

    2010-01-01

    Objetivo: evaluar la calidad del Programa de detección temprana y control del cáncer de cuello uterino en una Unidad Prestadora de Servicios de Salud, de la Empresa Social del Estado Metrosalud, Medellín, Colombia, 2006-2008. Metodología: estudio descriptivo transversal. Se siguió el método de evaluación de programas de salud en los componentes problema, estructura, procesos y resultados propuesto por Avedis Donabediam, a partir de diferentes técnicas de recolección de información. Se hizo an...

  9. Programas educativos compensatorios en México. Problemas de equidad y de conocimiento

    OpenAIRE

    Jesús Aguilar Nery

    2015-01-01

    A partir de la epistemología social de Popkewitz, propongo una lectura en torno a dos problemáticas ligadas a los programas educativos compensatorios: una examina directamente cuestiones de representación y acceso de individuos y grupos a las prácticas educativas y sociales; la otra problemática está centrada en las normas y las diferencias imbricadas en la política educativa y en la investigación educativa de las últimas dos décadas, que dan por supuesto que los programas educativos compensa...

  10. Dirección de arte del programa “en forma”

    OpenAIRE

    Saltos Jiménez, Fernando; Chávez Cristóbal, Catherine Lissethe; Bailón Andrade, Johanna

    2013-01-01

    El presente proyecto propone cambiar la imagen del programa “En Forma” de “Espol TV”, porque es necesario que un canal de televisión tenga un programa de ejercicios ya que los televidentes aprenderán como tener una mejor salud física. Por lo tanto es de mucha importancia poseer una imagen llamativa, alegre y llena de vida que lo represente. La única forma de lograr este objetivo es por medio de la dirección de arte; la cual empleada en la televisión es el equilibrio perfecto entre...

  11. La alimentación escolar analizada en el contexto de un programa

    Directory of Open Access Journals (Sweden)

    Dixis Figueroa Pedraza

    2005-07-01

    Full Text Available La diversidad de criterios relacionados con la alimentación escolar hace de ella un tema complejo y difícil de tratar.Este trabajo intenta discernir los aspectos esenciales que debemos analizar cuando estudiamos el tema "Programa de Merienda Escolar ",apoyado en los conceptos que el término expresa.Para esto realizamos una revisión bibliográfica actualizada con la particularidad de relacionar el tema con todos los aspectos que el termino "programa "lleva implícito y,de esta forma,conseguir un análisis científico desde el punto de vista de la nutrición. El Programa de Alimentación Escolar representa un conjunto de proyectos cuyas intenciones serían las de proveer refecciones para mantener a los niños alimentados,independientemente de su condición.Este concepto preconiza que todo programa de alimentación escolar debe ser constituido por tres etapas:diseño,ejecución y evaluación. El diseño comprende aspectos que se constituyen en importantes temas polémicos,relacionados con la alimentación escolar,como los objetivos que el programa debe contemplar;las relaciones con el hambre,desnutrición y el fracaso escolar; y la diferencia que representa analizar el tema como un derecho del niño.Las experiencias en la ejecución de programas de alimentación escolar muestran grandes diferencias entre los países desarrollados y aquellos en desarrollo,y en el ámbito de estos últimos.La evaluación,la mayoría de las veces desconsiderada o concebida de forma errada,tiene por base verificar si los resultados corresponden a los objetivos,para lo cual el uso de indicadores adecuados es una pieza clave. Por último,se analiza el programa de forma integral para que pueda,de esta manera,conseguir resultados incuestionables.Se discute el programa de alimentación escolar como política pública,en el contexto de la seguridad alimentaria y de las actividades complementarias que deben formar parte de él.

  12. La respuesta a la diversidad : de los programas de garantía social hacia los programas de cualificaciónprofesional inicial

    OpenAIRE

    Ascensión Palomares; Sagrario López

    2012-01-01

    En este artículo se analiza una de las medidas de atención a la diversidad llevadas a cabo a partir de la Ley Orgánica de Educación (LOE): los Programas de Cualificación Profesional Inicial (PCPI). Se retrocede hasta los Programas de Garantía Social (PGS) y, a través de una exhaustiva revisión documental, bibibliográfica y legislativa, en conjunción con el método descriptivo, se ahonda en el desarrollo y evolución de una terminología clave a lo largo de un dilatado contexto socioeducativo, as...

  13. Modelos e-learning para integrar las TIC y transformar programas de educación a distancia en programas virtuales

    OpenAIRE

    Poveda Pineda, Derly Francedy; Rodríguez Hernández, Ariel Adolfo

    2014-01-01

    A través de una cartografía bibliográfica, su análisis conceptual y el estudio de algunos modelos e-learning, se analiza la incorporación de las tecnologías de la información y la comunicación en los procesos de educación superior, con el objeto de definir un modelo de transformación de programas de educación a distancia a programas virtuales (e-learning). Se realizó el diagnóstico para establecer las condiciones y el estado de la institución, se construyó una propuesta d...

  14. Advanced reactor physics methods for heterogeneous reactor cores

    Science.gov (United States)

    Thompson, Steven A.

    To maintain the economic viability of nuclear power the industry has begun to emphasize maximizing the efficiency and output of existing nuclear power plants by using longer fuel cycles, stretch power uprates, shorter outage lengths, mixed-oxide (MOX) fuel and more aggressive operating strategies. In order to accommodate these changes, while still satisfying the peaking factor and power envelope requirements necessary to maintain safe operation, more complexity in commercial core designs have been implemented, such as an increase in the number of sub-batches and an increase in the use of both discrete and integral burnable poisons. A consequence of the increased complexity of core designs, as well as the use of MOX fuel, is an increase in the neutronic heterogeneity of the core. Such heterogeneous cores introduce challenges for the current methods that are used for reactor analysis. New methods must be developed to address these deficiencies while still maintaining the computational efficiency of existing reactor analysis methods. In this thesis, advanced core design methodologies are developed to be able to adequately analyze the highly heterogeneous core designs which are currently in use in commercial power reactors. These methodological improvements are being pursued with the goal of not sacrificing the computational efficiency which core designers require. More specifically, the PSU nodal code NEM is being updated to include an SP3 solution option, an advanced transverse leakage option, and a semi-analytical NEM solution option.

  15. Reactor pulse repeatability studies at the annular core research reactor

    Energy Technology Data Exchange (ETDEWEB)

    DePriest, K.R. [Applied Nuclear Technologies, Sandia National Laboratories, Mail Stop 1146, Post Office Box 5800, Albuquerque, NM 87185-1146 (United States); Trinh, T.Q. [Nuclear Facility Operations, Sandia National Laboratories, Mail Stop 0614, Post Office Box 5800, Albuquerque, NM 87185-1146 (United States); Luker, S. M. [Applied Nuclear Technologies, Sandia National Laboratories, Mail Stop 1146, Post Office Box 5800, Albuquerque, NM 87185-1146 (United States)

    2011-07-01

    The Annular Core Research Reactor (ACRR) at Sandia National Laboratories is a water-moderated pool-type reactor designed for testing many types of objects in the pulse and steady-state mode of operations. Personnel at Sandia began working to improve the repeatability of pulse operations for experimenters in the facility. The ACRR has a unique UO{sub 2}-BeO fuel that makes the task of producing repeatable pulses difficult with the current operating procedure. The ACRR produces a significant quantity of photoneutrons through the {sup 9}Be({gamma}, n){sup 8}Be reaction in the fuel elements. The photoneutrons are the result of the gammas produced during fission and in fission product decay, so their production is very much dependent on the reactor power history and changes throughout the day/week of experiments in the facility. Because the photoneutrons interfere with the delayed-critical measurements required for accurate pulse reactivity prediction, a new operating procedure was created. The photoneutron effects at delayed critical are minimized when using the modified procedure. In addition, the pulse element removal time is standardized for all pulse operations with the modified procedure, and this produces less variation in reactivity removal times. (authors)

  16. In-reactor performance of pressure tubes in CANDU reactors

    Science.gov (United States)

    Rodgers, D. K.; Coleman, C. E.; Griffiths, M.; Bickel, G. A.; Theaker, J. R.; Muir, I.; Bahurmuz, A. A.; Lawrence, S. St.; Resta Levi, M.

    2008-12-01

    The pressure tubes in CANDU reactors have been operating for times up to about 25 years. The in-reactor performance of Zr-2.5Nb pressure tubes has been evaluated by sampling and periodic inspection. This paper describes the behaviour and discusses the factors controlling the behaviour of these components in currently operating CANDU reactors. The mechanical properties (such as ultimate tensile strength, UTS, and fracture toughness), and delayed-hydride-cracking properties (crack growth rate Vc, and threshold stress intensity factor, KIH) change with irradiation; the former reach a limiting value at a fluence of Pressure tubes exhibit elongation and diametral expansion. The deformation behaviour is a function of operating conditions and material properties that vary from tube-to-tube and as a function of axial location. Semi-empirical predictive models have been developed to describe the deformation response of average tubes as a function of operating conditions. For corrosion and, more importantly deuterium pickup, semi-empirical predictive models have also been developed to represent the behaviour of an average tube. The effect of material variability on corrosion behaviour is less well defined compared with other properties. Improvements in manufacturing have increased fracture resistance by minimising trace elements, especially H and Cl, and reduced variability by tightening controls on forming parameters, especially hot-working temperatures.

  17. Evaluación de políticas y programas sociales mediante lógica difusa

    National Research Council Canada - National Science Library

    Lucio Flores Payán; J. Refugio Vallejo

    2015-01-01

    El objetivo principal del presente documento es el de presentar una caracterización de la evaluación de política pública y en específico de programas para el desarrollo social, como es el caso del Programa...

  18. Los programas de resumen futbolistico de TVE durante el monopolio de la television publica: caracteristicas y rasgos de innovacion

    National Research Council Canada - National Science Library

    Bonaut Iriarte, Joseba

    2014-01-01

    ...: los programas de resumen futbolistico. Este tipo de espacio tiene su origen en Reino Unido durante los anos sesenta y se consolida con la aparicion de un programa referente de la television de ese pais: Match of the Day (BBC One, 1964...

  19. Programa eskuetara. Programa de accesibilidad de las nuevas tecnologías a las personas con retraso mental de Guipúzcoa

    OpenAIRE

    Aldabaldetreku Agirre, Olatz

    2003-01-01

    Desde Atzegi (Asociación Guipuzcoana a favor de las Personas con Retraso Mental), pensando que todos los ciudadanos tienen que tener derecho a poder acceder y utilizar los nuevos soportes tecnológicos independientemente de sus posibilidades y limitaciones, plantean el programa ESKUETARA con el objetivo principal de propiciar la accesibilidad a las nuevas tecnologías de las personas con retraso mental de Guipúzcoa.

  20. Evaluación de un programa de política social: Programa Materno Infantil y Nutrición

    Directory of Open Access Journals (Sweden)

    Alicia Aronna

    Full Text Available Se presenta la evaluación del Programa Materno Infantil y Nutrición (PROMIN, dirigido a embarazadas y niños menores de cinco años, ejecutado en el Municipio de Rosario, Argentina. El objetivo es identificar los condicionantes que operaron en la puesta en la marcha según: el ambiente organizacional percibido por los jefes de los Centros de Salud y Desarrollo Infantil; la gestión de las actividades de los equipos de salud y las representaciones de la población en torno a la accesibilidad y aceptabilidad con el programa. Se seleccionaron como casos, dos servicios de salud bajo programa durante 1998. Se utilizaron estrategias cuantitativas y cualitativas. Los resultados indican que el ambiente organizacional condicionó diferencialmente las estrategias de intervención en ambos centros. Las coberturas alcanzadas fueron diferentes en ambos centros, con una meta del 80%. El registro de las actividades por parte de los equipos da cuenta de un cumplimiento parcial y heterogéneo en ambos espacios. Las madres reconocen las instituciones por su prestigio, conocen el alcance de las prestaciones y de los servicios más allá de PROMIN. La aceptabilidad se expresó como la provisión de complementación alimenicia.

  1. Rol del agente y estructuras de rendición de cuentas en programas sociales mexicanos. El caso del programa 3x1 en Zacatecas

    Directory of Open Access Journals (Sweden)

    José González Hernández

    2013-08-01

    Full Text Available Se revisaron algunos de los cambios en la estructura actual de las instituciones estatales de rendición de cuentas impulsados por las organizaciones de migrantes zacatecanos en Estados Unidos de América con el objetivo de clarificar sus efectos en las capacidades de control social dentro del Programa 3x1 en sus dimensiones de transparencia, sancionabilidad y responsabilidad durante el periodo 1998-2011. Aun cuando las Federaciones de migrantes zacatecanos han modificado de forma importante el Sistema de Rendición de Cuentas del Programa 3x1, estos cambios son diferenciados: la transparencia ha aumentado sustancialmente, la responsividad en menor medida y la sancionabilidad muy poco o nada. Las modificaciones en la estructura administrativa del órgano interno de control estatal y la operación del comité de validación y atención al migrante son las aportaciones de mayor trascendencia. Las organizaciones de migrantes de origen zacatecano al constituirse como sujeto social han sido capaces de establecer un sistema de rendición de cuentas mucho más funcional y efectivo que cualquier otro existente en programas equivalentes en territorio zacatecano. Y apoyan los argumentos a favor de la promoción de la participación social organizada en el control de las acciones del Estado.

  2. Programa de manejo integral de zonas costeras de Nicaragua (MAIZCo

    Directory of Open Access Journals (Sweden)

    Fátima Vanegas Zúñiga

    2016-03-01

    Full Text Available El Plan de Acción para el Manejo de las Zonas Costeras de Nicaragua fue formulado durante la primera fase del programa “Manejo Integral de las Zonas Costeras de Nicaragua” (MAIZCo. La agencia ejecutora de la primera fase fue la Dirección General del Ambiente (DGA del Ministerio del Ambiente y Recursos Naturales (MARENA. Las estrategias y propuestas de acciones inmediatas formuladas en el Plan de Acción están basadas en un marco conceptual y un diagnóstico de las potencialidades y problemática de la Zona Costera. Tanto el marco conceptual como el diagnostico fueron desarrollados en un intenso proceso de interacción con los actores sustantivos. Una serie de entrevistas y talleres a nivel local, regional y nacional fueron organizados. Un primer paso incluyó la definición de los siguientes dos principios guías para el Manejo Integral de las Zonas Costeras en Nicaragua. El objetivo general del plan es facilitar un uso sostenible de los recursos naturales en las zonas Costeras de Nicaragua para el beneficio de toda la sociedad. Además, como objetivos específicos se considera contribuir al crecimiento económico; mantener la integridad de los ecosistemas costeros; contribuir a una distribución equitativa de los bienes y servicios producidos por los recursos naturales; y facilitar un efectivo y eficiente manejo. El diagnóstico de las zonas costeras incluyó: Nicaragua tiene extensivos recursos naturales en el área costera, los cuales podrían –pero no- jugar un substancial rol en el desarrollo social y económico de Nicaragua. La problemática general no es la degradación de los ecosistemas costeros, pero si en general los recursos están subexplotados y los beneficios no están bien distribuidos. Un uso indiscriminado, sin embargo, podría significar en un futuro inmediato la sobreexplotación de ecosistemas específicos (ejemplo: áreas de manglares en la costa Pacífica y especies (ejemplos: la langosta en la costa Atl

  3. Gas-liquid autoxidation reactors

    Energy Technology Data Exchange (ETDEWEB)

    Morbidelli, M.; Paludetto, R.; Carra, S.

    1986-01-01

    A procedure for the simulation of autoxidation gas-liquid reactors has been developed based both on mathematical models and laboratory experiments. It has been shown that the complex radical chain mechanism of the autoxidation process can be simulated through two global parallel reactions, whose rates are obtained by assuming pseudo-steady-state concentration values for all the radical species involved. Using ethylbenzene autoxidation as a model reaction, an experimental analysis has been performed in order to estimate all the kinetic parameters of the model. The effect of the interaction between gas-liquid mass-transfer phenomena and the complex kinetic mechanism on the overall performance of an autoxidation reactor has been examined in detail within the framework of the liquid film model.

  4. Transport simulation for EBT reactor

    Energy Technology Data Exchange (ETDEWEB)

    Uckan, T.; Uckan, N.A.; Jaeger, E.F.

    1983-08-01

    Transport simulation and modeling studies for the ELMO Bumpy Torus (EBT) reactor are carried out by using zero-dimensional (0-D) and one-and-one-half-dimensional (1 1/2-D) transport calculations. The time-dependent 0-D model is used for global analysis, whereas the 1 1/2-D radial transport code is used for accurate determination of density, temperature, and ambipolar potential profiles and of the role of these profiles in reactor plasma performance. Analysis with the 1 1/2-D transport code shows that profile effects near the outer edge of the hot electron ring lead to enhanced confinement by at least a factor of 2 to 5 beyond the simple scaling that is obtained from the global analysis. The radial profiles of core plasma density and temperatures (or core pressure) obtained from 1 1/2-D transport calculations are found to be similar to those theoretically required for stability.

  5. Nuclear reactor alignment plate configuration

    Energy Technology Data Exchange (ETDEWEB)

    Altman, David A; Forsyth, David R; Smith, Richard E; Singleton, Norman R

    2014-01-28

    An alignment plate that is attached to a core barrel of a pressurized water reactor and fits within slots within a top plate of a lower core shroud and upper core plate to maintain lateral alignment of the reactor internals. The alignment plate is connected to the core barrel through two vertically-spaced dowel pins that extend from the outside surface of the core barrel through a reinforcement pad and into corresponding holes in the alignment plate. Additionally, threaded fasteners are inserted around the perimeter of the reinforcement pad and into the alignment plate to further secure the alignment plate to the core barrel. A fillet weld also is deposited around the perimeter of the reinforcement pad. To accomodate thermal growth between the alignment plate and the core barrel, a gap is left above, below and at both sides of one of the dowel pins in the alignment plate holes through with the dowel pins pass.

  6. Fluidized bed coal combustion reactor

    Science.gov (United States)

    Moynihan, P. I.; Young, D. L. (Inventor)

    1981-01-01

    A fluidized bed coal reactor includes a combination nozzle-injector ash-removal unit formed by a grid of closely spaced open channels, each containing a worm screw conveyor, which function as continuous ash removal troughs. A pressurized air-coal mixture is introduced below the unit and is injected through the elongated nozzles formed by the spaces between the channels. The ash build-up in the troughs protects the worm screw conveyors as does the cooling action of the injected mixture. The ash layer and the pressure from the injectors support a fluidized flame combustion zone above the grid which heats water in boiler tubes disposed within and/or above the combustion zone and/or within the walls of the reactor.

  7. Fast breeder reactor protection system

    Science.gov (United States)

    van Erp, J.B.

    1973-10-01

    Reactor protection is provided for a liquid-metal-fast breeder reactor core by measuring the coolant outflow temperature from each of the subassemblies of the core. The outputs of the temperature sensors from a subassembly region of the core containing a plurality of subassemblies are combined in a logic circuit which develops a scram alarm if a predetermined number of the sensors indicate an over temperature condition. The coolant outflow from a single subassembly can be mixed with the coolant outflow from adjacent subassemblies prior to the temperature sensing to increase the sensitivity of the protection system to a single subassembly failure. Coherence between the sensors can be required to discriminate against noise signals. (Official Gazette)

  8. Reactor vessel lower head integrity

    Energy Technology Data Exchange (ETDEWEB)

    Rubin, A.M.

    1997-02-01

    On March 28, 1979, the Three Mile Island Unit 2 (TMI-2) nuclear power plant underwent a prolonged small break loss-of-coolant accident that resulted in severe damage to the reactor core. Post-accident examinations of the TMI-2 reactor core and lower plenum found that approximately 19,000 kg (19 metric tons) of molten material had relocated onto the lower head of the reactor vessel. Results of the OECD TMI-2 Vessel Investigation Project concluded that a localized hot spot of approximately 1 meter diameter had existed on the lower head. The maximum temperature on the inner surface of the reactor pressure vessel (RPV) in this region reached 1100{degrees}C and remained at that temperature for approximately 30 minutes before cooling occurred. Even under the combined loads of high temperature and high primary system pressure, the TMI-2 RPV did not fail. (i.e. The pressure varied from about 8.5 to 15 MPa during the four-hour period following the relocation of melt to the lower plenum.) Analyses of RPV failure under these conditions, using state-of-the-art computer codes, predicted that the RPV should have failed via local or global creep rupture. However, the vessel did not fail; and it has been hypothesized that rapid cooling of the debris and the vessel wall by water that was present in the lower plenum played an important role in maintaining RPV integrity during the accident. Although the exact mechanism(s) of how such cooling occurs is not known, it has been speculated that cooling in a small gap between the RPV wall and the crust, and/or in cracks within the debris itself, could result in sufficient cooling to maintain RPV integrity. Experimental data are needed to provide the basis to better understand these phenomena and improve models of RPV failure in severe accident codes.

  9. The ARIES tokamak reactor study

    Energy Technology Data Exchange (ETDEWEB)

    1989-10-01

    The ARIES study is a community effort to develop several visions of tokamaks as fusion power reactors. The aims are to determine the potential economics, safety, and environmental features of a range of possible tokamak reactors, and to identify physics and technology areas with the highest leverage for achieving the best tokamak reactor. Three ARIES visions are planned, each having a different degree of extrapolation from the present data base in physics and technology. The ARIES-I design assumes a minimum extrapolation from current tokamak physics (e.g., 1st stability) and incorporates technological advances that can be available in the next 20 to 30 years. ARIES-II is a DT-burning tokamak which would operate at a higher beta in the 2nd MHD stability regime. It employs both potential advances in the physics and expected advances in technology and engineering. ARIES-II will examine the potential of the tokamak and the D{sup 3}He fuel cycle. This report is a collection of 14 papers on the results of the ARIES study which were presented at the IEEE 13th Symposium on Fusion Engineering (October 2-6, 1989, Knoxville, TN). This collection describes the ARIES research effort, with emphasis on the ARIES-I design, summarizing the major results, the key technical issues, and the central conclusions.

  10. Actinide transmutation in nuclear reactors

    Energy Technology Data Exchange (ETDEWEB)

    Bultman, J.H.

    1995-01-17

    An optimization method is developed to maximize the burning capability of the ALMR while complying with all constraints imposed on the design for reliability and safety. This method leads to a maximal transuranics enrichment, which is being limited by constraints on reactivity. The enrichment can be raised by using the neutrons less efficiently by increasing leakage from the fuel. With the developed optimization method, a metallic and an oxide fueled ALMR were optimized. Both reactors perform equally well considering the burning of transuranics. However, metallic fuel has a much higher heat conductivity coefficient, which in general leads to better safety characteristics. In search of a more effective waste transmuter, a modified Molten Salt Reactor was designed. A MSR operates on a liquid fuel salt which makes continuous refueling possible, eliminating the issue of the burnup reactivity loss. Also, a prompt negative reactivity feedback is possible for an overmoderated reactor design, even when the Doppler coefficient is positive, due to the fuel expansion with fuel temperature increase. Furthermore, the molten salt fuel can be reprocessed based on a reduction process which is not sensitive to the short-lived spontaneously fissioning actinides. (orig./HP).

  11. Assessment of the thorium fuel cycle in power reactors

    Energy Technology Data Exchange (ETDEWEB)

    Kasten, P.R.; Homan, F.J.; Allen, E.J.

    1977-01-01

    A study was conducted at Oak Ridge National Laboratory to evaluate the role of thorium fuel cycles in power reactors. Three thermal reactor systems were considered: Light Water Reactors (LWRs); High-Temperature Gas-Cooled Reactors (HTGRs); and Heavy Water Reactors (HWRs) of the Canadian Deuterium Uranium Reactor (CANDU) type; most of the effort was on these systems. A summary comparing thorium and uranium fuel cycles in Fast Breeder Reactors (FBRs) was also compiled.

  12. Un modelo para la autoevaluación de la calidad de programas de educación universitaria virtual

    Directory of Open Access Journals (Sweden)

    Renata Marciniak

    2017-01-01

    Full Text Available La mejora de la calidad de programas formativos impartidos bajo la modalidad virtual es un gran desafío para todas las universidades que los ofrecen , si consideramos las crecientes expectativas de los estudiantes y los requisitos de calidad y mejora permanente de las agencias de acreditación . Uno de los métodos que per mite n identificar el nivel actual de la calidad del programa y mejorarlo es la autoevaluación que debería abarcar la evaluación de la calidad propia del programa, así como su evaluación continua. El objetivo de l artículo es presentar un modelo aplicativo p ara la autoevaluación de programas de educación universitaria virtual , que integra lo s d os tipos de evaluación y de esta manera permite evaluar la calidad tanto de los elementos pedagógicos y tecnológicos que constituyen un programa virtual como cada una d e las tres fases de su aplicación : la fase inicial, de desarrollo y la fase final. La validación del modelo ha incluido varios momentos e implicado a 23 expertos internacionales y su aplicación en la autoevaluación de cuatro programas virtuales. El m odelo está dirigido a los responsables de la ejecución de programas formativos impartidos bajo la modalidad virtual, directores/coordinadores de las carreras a las que pertenece el programa. Asimismo, puede servir a los diseñadores de programas virtuales como pa uta para diseñar un programa virtual de buena calidad.

  13. Advanced Safeguards Approaches for New Fast Reactors

    Energy Technology Data Exchange (ETDEWEB)

    Durst, Philip C.; Therios, Ike; Bean, Robert; Dougan, A.; Boyer, Brian; Wallace, Rick L.; Ehinger, Michael H.; Kovacic, Don N.; Tolk, K.

    2007-12-15

    This third report in the series reviews possible safeguards approaches for new fast reactors in general, and the ABR in particular. Fast-neutron spectrum reactors have been used since the early 1960s on an experimental and developmental level, generally with fertile blanket fuels to “breed” nuclear fuel such as plutonium. Whether the reactor is designed to breed plutonium, or transmute and “burn” actinides depends mainly on the design of the reactor neutron reflector and the whether the blanket fuel is “fertile” or suitable for transmutation. However, the safeguards issues are very similar, since they pertain mainly to the receipt, shipment and storage of fresh and spent plutonium and actinide-bearing “TRU”-fuel. For these reasons, the design of existing fast reactors and details concerning how they have been safeguarded were studied in developing advanced safeguards approaches for the new fast reactors. In this regard, the design of the Experimental Breeder Reactor-II “EBR-II” at the Idaho National Laboratory (INL) was of interest, because it was designed as a collocated fast reactor with a pyrometallurgical reprocessing and fuel fabrication line – a design option being considered for the ABR. Similarly, the design of the Fast Flux Facility (FFTF) on the Hanford Site was studied, because it was a successful prototype fast reactor that ran for two decades to evaluate fuels and the design for commercial-scale fast reactors.

  14. Investigation of molten salt fast reactor

    Energy Technology Data Exchange (ETDEWEB)

    Kubota, Kenichi; Konomura, Mamoru [Japan Nuclear Cycle Development Inst., Tokai, Ibaraki (Japan)

    2002-05-01

    On survey research for practicability strategy of fast reactor (FR) (phase 1), to extract future practicability image candidates of FR from wide options, in addition to their survey and investigation objects of not only solid fuel reactors of conventional research object but also molten salt reactor as a flowing fuel reactor, investigation on concept of molten salt FR plant was carried out. As a part of the first step of the survey research for practicability strategy, a basic concept on plant centered at nuclear reactor facility using chloride molten salt reactor capable of carrying out U-Pu cycle was examined, to perform a base construction to evaluate economical potential for a practical FBR. As a result, a result could be obtained that because of inferior fuel inventory and heat transmission to those in Na cooling reactor in present knowledge, mass of reactor vessel and intermediate heat exchanger were to widely increased to expect reduction of power generation unit price even on considering cheapness of its fuel cycle cost. Therefore, at present step further investigation on concept design of the chloride molten salt reactor plant system is too early in time, and it is at a condition where basic and elementary researches aiming at upgrading of economical efficiency such as wide reduction of fuel inventory, a measure expectable for remarkable rationalization effect of reprocessing system integrating a reactor to a processing facility, and so on. (G.K.)

  15. Una aproximación a un programa de empleo: el caso del Programa Servicios Comunitarios An employment program approximation: the community services case

    Directory of Open Access Journals (Sweden)

    Nora Goren

    2001-06-01

    Full Text Available El objetivo del trabajo es presentar una caracterización y análisis de la forma que asume la vinculación de las mujeres jóvenes de sectores de pobreza con las políticas sociales. Nuestro propósito es el de estudiar el significado que le asignan a la participación en un programa de empleo las propias jóvenes, a partir del reconocimiento de algunas características específicas que las impulsan a la misma, así como su articulación con las estrategias familiares de ingresos. La presentación está organizada en dos partes. En la primera se presenta sintéticamente una descripción de un programa de empleo del Ministerio de Trabajo y Seguridad Social, que por sus características constituye el programa con mayor número de mujeres como beneficiarias: Servicios Comunitarios. En la segunda parte, se analizan los Planes ejecutados en el marco del Programa Servicios Comunitarios, implementados en un territorio específico: en el Partido de Moreno. Los datos que se presentan provienen, por un lado, de documentos del Ministerio de Trabajo y de la Municipalidad de Moreno y, por el otro, de entrevistas a responsables provinciales del Programa y a las jóvenes que han participado en los Planes.The aim of this work is to present a characterization and analysis of how poor young women relate themselves to social policies. Our goal is to investigate the meaning they give to the participation in an employment program, by recognizing some specific traits that lead them into it, as well as family income strategies. The presentation is organized in two parts. The first one summarizes the employment program of the Labor and Social Security Ministry, which has the most women benefiting from it: Community Services. The second part examines the plans implemented within the Community Service Program in a specific territory, the Partido de Moreno. Data originate, on the one hand, from Labor Ministry and the Moreno Township's documents and, on the other hand

  16. Programa de erradicación de la poliomielitis en Colombia

    Directory of Open Access Journals (Sweden)

    Mancel E. Martínez Durán

    1987-12-01

    Full Text Available El Programa de Erradicación de la Poliomielitis en general, es un programa orientado y apoyado por la Organización Panamericana de la Salud (OPS/OMS, aceptado y realizado por el país que sirve como base fundamental para el fortalecimiento de la estructura existente y como pilar para mejorar la vigilancia epidemiológica nacional y el control de otras enfermedades, a la par que desarrolla el Programa Ampliado de Inmunizaciones (PAI. Su financiación está programada hasta 199 1 y en Colombia está dada por recursos propios en cerca del 80% del costo del Programa; los recursos externos corresponden a un poco más del 20%, de los cuales aproximadamente el 75% están encaminados a fortalecer red de frío, transporte, laboratorio para diagnóstico, capacitación y movilización social para el logro de la meta de ERRADICACION.

  17. Comunidad y desarrollo en los Andes Peruanos. Una critica etnografica al Programa de Culturalidad

    NARCIS (Netherlands)

    Vries, de P.A.

    2013-01-01

    En las últimas décadas la desconstrucción del desarrollo, conocida como el ‘postdesarrollismo’, ha cobrado gran auge en las ciencias sociales. En Latinoamérica el programa teórico denominado modernidad/colonialidad/descolonialidad (MCD) se propone descolonizar el pensamiento moderno reescribiendo la

  18. Programa Seis Sigma: aspectos sinérgicos com outras abordagens de gerenciamento da qualidade

    Directory of Open Access Journals (Sweden)

    Silvia Helena Boarin Pinto

    2009-03-01

    Full Text Available Diversas abordagens de gestão da qualidade têm sido adotadas em todos os continentes há décadas. Uma das mais recentes, o programa Seis Sigma, vem sendo implementado por um número crescente de empresas. O Seis Sigma surge no atual cenário, em que as organizações realizam grandes investimentos na implementação de programas de melhoria da qualidade e se deparam com situações críticas como a mensuração do retorno sobre o capital investido, bem como a análise criteriosa dos benefícios alcançados. A proposta deste artigo é identificar as principais características do Seis Sigma, discutir quais os fatores críticos na sua implementação, as ferramentas e técnicas que suportam este processo, bem como sua relação com outros consagrados programas de melhoria da qualidade. A abordagem metodológica utilizada foi o estudo de múltiplos casos, desenvolvido em dez grandes empresas brasileiras de diferentes setores industriais. A pesquisa concluiu que existe sinergia entre o Seis Sigma e os demais programas e as organizações que adotaram o Seis Sigma obtiveram benefícios financeiros e de qualidade.

  19. O PERFIL COMUM DOS PROGRAMAS DE ATIVIDADE FÍSICA DAS ACADEMIAS SÉNIORES

    Directory of Open Access Journals (Sweden)

    João Serrano

    2015-04-01

    Full Text Available A atividade física regular apresenta-se como determinante para que o idoso possa viver com mais qualidade. Shephard (2013 diz que para que os idosos tenham benefícios na sua saúde é necessário incluir na sua rotina a prática de atividade física regular e bem orientada, exigindo-se aos professores de atividade física essa responsabilidade. O autor acrescenta que é muito importante que haja um programa de exercícios para os idosos e que este deve ser direcionado para a socialização e com o objetivo de manter a mobilidade e a autonomia.Objetivo: Analisar e comparar os programas de atividade física das várias academias sénior do distrito de Castelo Branco, detetar qual a academia sénior com maior numero de participantes nas aulas de atividade física, traçar o perfil comum dos programas e apresentar uma proposta de programa.

  20. Por um programa preventivo em saúde mental do trabalhador na brigada militar

    Directory of Open Access Journals (Sweden)

    Fernanda Spanier Amador

    Full Text Available O presente artigo argumenta sobre a importância de políticas de Saúde e Segurança Públicas que sustentem programas voltados à saúde do trabalhador na Brigada Militar. Aborda, mais especificamente, a necessidade de ações preventivas e promotoras de saúde mental nesse âmbito.

  1. Aspectos cuantitativos de los programas universitarios de administración de empresas en Colombia

    Directory of Open Access Journals (Sweden)

    Carlos Henao Restrepo

    1991-05-01

    Full Text Available RESUMEN La estabilización o el crecimiento en la oferta universitaria de este programa, en términos  cuantitativos como cualitativos, es uno de los aspectos críticos para las instituciones que postulan mejoras de calidad dentro de las nuevas reglas del mercado educativo.

  2. Programas de Fidelidade: um Estudo de Múltiplos Casos em Empresas Portuguesas

    Directory of Open Access Journals (Sweden)

    Vanessa Leal Mendes

    2014-03-01

    Full Text Available A cada dia os clientes têm mais cartões de fidelidade nas carteiras e parecem se sentir menos fidelizados às marcas. Tendo isso em vista, este artigo procura analisar características relevantes para a elaboração e gestão deste tipo de iniciativa. Procura-se responder a questão: “Como elaborar um programa de fidelidade de clientes?”. Após a revisão da literatura foram conduzidos oito estudos de casos em empresas de diferentes setores em Portugal. Além de argumentos encontrados na literatura, os resultados apontam a necessidade de considerar a natureza dinâmica deste tipo de programa e a questão da sustentabilidade destas iniciativas. Constatou-se ainda que os programas de fidelidade necessitam estar alinhados com a estratégia de marketing das empresas, ou seja, os programas devem ser dinâmicos e permitir mudanças e alterações constantes, consoante as necessidades das empresas, devendo adaptar-se às estratégias comerciais e às campanhas promocionais que vão sendo utilizadas pelas marcas. DOI: 10.5585/remark.v13i1.2526

  3. Rendimiento académico de estudiantes del Programa Nacional Beca 18 en la Universidad Continental

    Directory of Open Access Journals (Sweden)

    Oscar Navarro Ramos

    2015-06-01

    Full Text Available El objetivo fue identificar el rendimiento académico de los estudiantes becarios del Programa Nacional Beca 18 y comparar con los resultados de los estudiantes de la modalidad regular de la Universidad Continental en el periodo 2014 – II. La investigación tuvo un diseño descriptivo transversal. Los estudiantes objeto de estudio estuvieron conformados por un grupo de estudiantes becados y otro de estudiantes no becados que iniciaron sus estudios del primer ciclo en el semestre 2014-II. Los estudiantes becados han compartido con los estudiantes no becados o regulares las diversas actividades académicas, desarrollando siete asignaturas con los mismos docentes, infraestructura, recursos educacionales, y siendo tratados bajo las mismas condiciones. Entre los hallazgos de este estudio se tiene que los 5 mejores estudiantes del primer ciclo en once carreras profesionales, 3 fueron de la modalidad regular y 2 del programa Beca 18; entre los 10 mejores estudiantes, 4 fueron de la modalidad regular y 6 del programa Beca 18. Algunas conclusiones indican que se ha observado en el primer grupo de estudiantes del programa Beca 18 -aquellos que iniciaron sus estudios en Arquitectura y diez carreras de Ingeniería- que lograron un alto rendimiento académico y demostraron mayor esfuerzo por su aprendizaje, obteniendo buenas calificaciones en la Universidad Continental, un factor sería las actividades de los tutores de Beca 18 que contribuye positivamente en los resultados académicos.

  4. Programa de implantación de medidas de responsabilidad social en la cadena de valor

    OpenAIRE

    Banco Interamericano de Desarrollo (BID); Cemex

    2007-01-01

    Presentación que ofrece información acerca del programa de responsabilidad social en la cadena de valor en CEMEX, el cual pretende impulsar activamente el desarrollo de México, a través de la generación de soluciones innovadoras que mejoren la calidad de vida de las familias mexicanas.

  5. Programa de inteligencia emocional para profe sionales de enseñanza secundaria: hallazgos preliminares

    OpenAIRE

    Extremera, Natalio

    2015-01-01

    En esta comunicación se presentan hallazgos preliminares de la efectividad de un programa de intervención de inteligencia emocional para mejorar el bienestar personal y laboral de profesionales de la enseñanza en centros de secundaria en la provincia de Málaga. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.

  6. Regulacion temporal de la pausa en programas de razon e intervalo fijo

    Directory of Open Access Journals (Sweden)

    Florente López

    1999-01-01

    Full Text Available Se examinaron los efectos sobre la pausa posreforzamiento de programas de razón-fija e intervalo-fijo, en un programa múltiple. En un grupo de ratas en el componente de razón se varió el requisito, mientras que el componente de intervalo se mantuvo constante. En un segundo grupo el componente de intervalo varió y se mantuvo constante el de-razón. Se analizaron los datos en términos de la relación entre el tamaño promedio de la pausa posreforzamiento y el intervalo entre reforzadores y entre el promedio de la pausa y su desviación estándar. Se encontró que ambas relaciones fueron bien descritas por un modelo de regresión lineal, tanto para los programas de razón como para los de intervalo. Estos hallazgos se analizan en el contexto del modelo de expectancia escalar de Gibbon (1977 Yde la evidencia relacionada con los efectos de estos programas.

  7. Comunidad y desarrollo en los Andes Peruanos. Una critica etnografica al Programa de Culturalidad

    NARCIS (Netherlands)

    Vries, de P.A.

    2013-01-01

    En las últimas décadas la desconstrucción del desarrollo, conocida como el ‘postdesarrollismo’, ha cobrado gran auge en las ciencias sociales. En Latinoamérica el programa teórico denominado modernidad/colonialidad/descolonialidad (MCD) se propone descolonizar el pensamiento moderno reescribiendo la

  8. Lógica de formulación de programas y proyectos

    OpenAIRE

    Boto, Mónica Anahí

    2015-01-01

    Síntesis del Seminario "Lógica de la formulación de programas y proyectos". Define conceptos de escenarios futuros y metas, formulación de lineamientos en el marco del proceso de planeamiento. Facultad de Arquitectura y Urbanismo

  9. Performance of a multipurpose research electrochemical reactor

    Energy Technology Data Exchange (ETDEWEB)

    Henquin, E.R. [Programa de Electroquimica Aplicada e Ingenieria Electroquimica (PRELINE), Facultad de Ingenieria Quimica, Universidad Nacional del Litoral, Santiago del Estero 2829, S3000AOM Santa Fe (Argentina); Bisang, J.M., E-mail: jbisang@fiq.unl.edu.ar [Programa de Electroquimica Aplicada e Ingenieria Electroquimica (PRELINE), Facultad de Ingenieria Quimica, Universidad Nacional del Litoral, Santiago del Estero 2829, S3000AOM Santa Fe (Argentina)

    2011-07-01

    Highlights: > For this reactor configuration the current distribution is uniform. > For this reactor configuration with bipolar connection the leakage current is small. > The mass-transfer conditions are closely uniform along the electrode. > The fluidodynamic behaviour can be represented by the dispersion model. > This reactor represents a suitable device for laboratory trials. - Abstract: This paper reports on a multipurpose research electrochemical reactor with an innovative design feature, which is based on a filter press arrangement with inclined segmented electrodes and under a modular assembly. Under bipolar connection, the fraction of leakage current is lower than 4%, depending on the bipolar Wagner number, and the current distribution is closely uniform. When a turbulence promoter is used, the local mass-transfer coefficient shows a variation of {+-}10% with respect to its mean value. The fluidodynamics of the reactor responds to the dispersion model with a Peclet number higher than 10. It is concluded that this reactor is convenient for laboratory research.

  10. Molten-Salt Depleted-Uranium Reactor

    CERN Document Server

    Dong, Bao-Guo; Gu, Ji-Yuan

    2015-01-01

    The supercritical, reactor core melting and nuclear fuel leaking accidents have troubled fission reactors for decades, and greatly limit their extensive applications. Now these troubles are still open. Here we first show a possible perfect reactor, Molten-Salt Depleted-Uranium Reactor which is no above accident trouble. We found this reactor could be realized in practical applications in terms of all of the scientific principle, principle of operation, technology, and engineering. Our results demonstrate how these reactors can possess and realize extraordinary excellent characteristics, no prompt critical, long-term safe and stable operation with negative feedback, closed uranium-plutonium cycle chain within the vessel, normal operation only with depleted-uranium, and depleted-uranium high burnup in reality, to realize with fission nuclear energy sufficiently satisfying humanity long-term energy resource needs, as well as thoroughly solve the challenges of nuclear criticality safety, uranium resource insuffic...

  11. Sulfide toxicity kinetics of a uasb reactor

    Directory of Open Access Journals (Sweden)

    D. R. Paula Jr.

    2009-12-01

    Full Text Available The effect of sulfide toxicity on kinetic parameters of anaerobic organic matter removal in a UASB (up-flow anaerobic sludge blanket reactor is presented. Two lab-scale UASB reactors (10.5 L were operated continuously during 12 months. The reactors were fed with synthetic wastes prepared daily using glucose, ammonium acetate, methanol and nutrient solution. One of the reactors also received increasing concentrations of sodium sulfide. For both reactors, the flow rate of 16 L.d-1 was held constant throughout the experiment, corresponding to a hydraulic retention time of 15.6 hours. The classic model for non-competitive sulfide inhibition was applied to the experimental data for determining the overall kinetic parameter of specific substrate utilization (q and the sulfide inhibition coefficient (Ki. The application of the kinetic parameters determined allows prediction of methanogenesis inhibition and thus the adoption of operating parameters to minimize sulfide toxicity in UASB reactors.

  12. Introduction to the neutron kinetics of nuclear power reactors

    CERN Document Server

    Tyror, J G; Grant, P J

    2013-01-01

    An Introduction to the Neutron Kinetics of Nuclear Power Reactors introduces the reader to the neutron kinetics of nuclear power reactors. Topics covered include the neutron physics of reactor kinetics, feedback effects, water-moderated reactors, fast reactors, and methods of plant control. The reactor transients following faults are also discussed, along with the use of computers in the study of power reactor kinetics. This book is comprised of eight chapters and begins with an overview of the reactor physics characteristics of a nuclear power reactor and their influence on system design and

  13. FACTIBILIDAD DE UN PROGRAMA DE DOCTORADO EN LINGÜÍSTICA PARA LA UNIVERSIDAD DEL ZULIA

    Directory of Open Access Journals (Sweden)

    Beatriz Arrieta de Meza

    2014-11-01

    Full Text Available La investigación propuesta se plantea la interrogante acerca de la viabilidad de un programa de Doctorado en Lingüística para universidades venezolanas, detectado como una necesidad entre los egresados de la maestría en lingüística y disciplinas afines, como literatura y comunicación social. Esta propuesta tiene como finalidad diseñar, como estudio piloto,  un programa de Doctorado en Lingüística en La Universidad del Zulia, que amplíe la oferta curricular a los estudios para graduados y proporcione a los egresados los  medios teóricos y prácticos para que puedan generar nuevos conocimientos en esta disciplina. La investigación se enmarca en el tipo de proyecto factible, basada en necesidades detectadas en el campo. La sustentación teórica contempla la propuesta de un doctorado individualizado (Arrieta y Meza, 2004 y algunos de los estudios investigativos llevados a cabo por este equipo de trabajo (Arrieta et al., 2005, (Arrieta et al., 2006. Como antecedentes se cuenta con el programa de Doctorado en Lingüística de la Universidad de Los Andes. También se ha realizado una revisión, a manera de ejemplos, de programas similares pertenecientes a las ofertas curriculares de la Universidad de Concepción en Chile y la Universidad Autónoma de México.  Se espera presentar a la Comisión de Currículo de LUZ un programa que satisfaga la necesidad detectada.

  14. Aplicación de un programa de estrategias para la comprensión lectora

    Directory of Open Access Journals (Sweden)

    Virginia Navarro Salvador

    2011-06-01

    Full Text Available Objetivos: Aplicar un programa de estrategias para mejorar la comprensión lectora y el aprendizaje en estudiantes del primer grado del Colegio Particular “Ingeniería” de El Tambo Huancayo. Métodos: El diseño aplicado es cuasi experimental con pre y post prueba. El instrumento de medición es el test de comprensión lectora. La muestra estuvo conformada por 40 estudiantes del primer grado del Colegio Privado “Ingeniería”; de los cuales, 20 de ellos, integran al grupo experimental y 20, al grupo control. En el primer grupo, se aplicó un programa de estrategias para mejorar la comprensión lectora y el aprendizaje; en el segundo grupo, no se aplicó dicho programa. Resultados: Se demostró que el programa de estrategias mejoró significativamente la comprensión lectora y el aprendizaje, al encontrar que el grupo experimental en la prueba de entrada obtuvo una media de 11,25 y en la prueba de salida una media de 19,5 diferencia significativa al 0, 05 (tc = 17,6; mientras que el grupo control en la prueba de entrada logró una media de 10,1 y en la prueba de salida una media de 10,7. Conclusiones: La aplicación de un programa de estrategias metodológicas ajustadas a una debida planificación da resultados positivos para la comprensión lectora y el aprendizaje, con un nivel de 95% de confiabilidad y margen de error de 0,05% en los estudiantes del Primer Grado de Educación Secundaria del Colegio Particular “Ingeniería” de El Tambo, Huancayo.

  15. PROPUESTA DE UN PROGRAMA PARA MEJORAR LA COMPRENSIÓN DE TEXTOS EN ESTUDIANTES UNIVERSITARIOS

    Directory of Open Access Journals (Sweden)

    Klency González Hernández

    2008-01-01

    Full Text Available Esta investigación presenta el diseño de un programa para mejorar la comprensión de textos en estudiantes universitarios, así como la evaluación que un grupo de expertos realizaron del mismo. Consideramos que el lector comprende un texto cuando puede construir una representación mental de él en su memoria. Dicha representación es el resultado de la aplicación de un conjunto de estrategias, que pueden entrenarse mediante la intervención. La evaluación fue realizada utilizando el método Delphi. La muestra estuvo integrada por 16 expertos que evaluaron el programa en dos momentos diferentes. Los resultados revelan diferencias entre la primera y segunda evaluación, lo que apunta al hecho de que en la versión revisada del programa fueron tenidas en cuenta las sugerencias hechas por los expertos, con lo cual se mejoró y enriqueció el diseño del mismo, logrando un mayor ajuste con los objetivos de la investigación. El programa parte de un conjunto de presupuestos teóricos-metodológicos que fundamentan el diseño del mismo. Las estrategias seleccionadas para intervenir son: estrategia de progresión temática, estrategia estructural, aplicación de las macrorreglas y estrategias metacognitivas. Cada una de ellas se propone alcanzar objetivos específicos para lo cual desarrollamos una secuencia de tareas. Finalmente, describimos algunos procedimientos a tener en cuenta para la implementación del programa.

  16. Microstructured reactors for hydrogen production

    Energy Technology Data Exchange (ETDEWEB)

    Aartun, Ingrid

    2005-07-01

    Small scale hydrogen production by partial oxidation (POX) and oxidative steam reforming (OSR) have been studied over Rh-impregnated microchannel Fecralloy reactors and alumina foams. Trying to establish whether metallic microchannel reactors have special advantages for hydrogen production via catalytic POX or OSR with respect to activity, selectivity and stability was of special interest. The microchannel Fecralloy reactors were oxidised at 1000 deg C to form a {alpha}-Al2O3 layer in the channels in order to enhance the surface area prior to impregnation. Kr-BET measurements showed that the specific surface area after oxidation was approximately 10 times higher than the calculated geometric surface area. Approximately 1 mg Rh was deposited in the channels by impregnation with an aqueous solution of RhCl3. Annular pieces (15 mm o.d.,4 mm i.d., 14 mm length) of extruded {alpha}-Al2O3 foams were impregnated with aqueous solutions of Rh(NO3)3 to obtain 0.01, 0.05 and 0.1 wt.% loadings, as predicted by solution uptake. ICP-AES analyses showed that the actual Rh loadings probably were higher, 0.025, 0.077 and 0.169 wt.% respectively. One of the microchannel Fecralloy reactors and all Al2O3 foams were equipped with a channel to allow for temperature measurement inside the catalytic system. Temperature profiles obtained along the reactor axes show that the metallic microchannel reactor is able to minimize temperature gradients as compared to the alumina foams. At sufficiently high furnace temperature, the gas phase in front of the Rh/Al2O3/Frecralloy microchannel reactor and the 0.025 wt.% Rh/Al2O3 foams ignites. Gas phase ignition leads to lower syngas selectivity and higher selectivity to total oxidation products and hydrocarbon by-products. Before ignition of the gas phase the hydrogen selectivity is increased in OSR as compared to POX, the main contribution being the water-gas shift reaction. After gas phase ignition, increased formation of hydrocarbon by

  17. Reactor Bolshoi Moshchnosti Kalani; Reacteurs RBMK

    Energy Technology Data Exchange (ETDEWEB)

    Bastien, D. [Conservatoire National des Arts et Metiers (CNAM), 75 - Paris (France)

    2000-01-01

    The Reactor Bolshoi Molshchnosti Kalani (RBMK) are pressure tubes reactor, boiling light water cooled. Exported since 1990 from the ex-USSR, they are today in three independent countries: Russian, Ukraine and Lithuania. Since this date, data exchange with the occident allowed the better knowledge of this reactor type. The design, the technical description (core, fuel, primary system), the safety and the improvement since Chernobyl are detailed. (A.L.B.)

  18. D-D tokamak reactor studies

    Energy Technology Data Exchange (ETDEWEB)

    Evans, K.E. Jr.; Baker, C.C.; Brooks, J.N.; Ehst, D.A.; Finn, P.A.; Jung, J.; Mattas, R.F.; Misra, B.; Smith, D.L.; Stevens, H.C.

    1980-11-01

    A tokamak D-D reactor design, utilizing the advantages of a deuterium-fueled reactor but with parameters not unnecessarily extended from existing D-T designs, is presented. Studies leading to the choice of a design and initial studies of the design are described. The studies are in the areas of plasma engineering, first-wall/blanket/shield design, magnet design, and tritium/fuel/vacuum requirements. Conclusions concerning D-D tokamak reactors are stated.

  19. NASA Reactor Facility Hazards Summary. Volume 1

    Science.gov (United States)

    1959-01-01

    The Lewis Research Center of the National Aeronautics and Space Administration proposes to build a nuclear research reactor which will be located in the Plum Brook Ordnance Works near Sandusky, Ohio. The purpose of this report is to inform the Advisory Committee on Reactor Safeguards of the U. S. Atomic Energy Commission in regard to the design Lq of the reactor facility, the characteristics of the site, and the hazards of operation at this location. The purpose of this research reactor is to make pumped loop studies of aircraft reactor fuel elements and other reactor components, radiation effects studies on aircraft reactor materials and equipment, shielding studies, and nuclear and solid state physics experiments. The reactor is light water cooled and moderated of the MTR-type with a primary beryllium reflector and a secondary water reflector. The core initially will be a 3 by 9 array of MTR-type fuel elements and is designed for operation up to a power of 60 megawatts. The reactor facility is described in general terms. This is followed by a discussion of the nuclear characteristics and performance of the reactor. Then details of the reactor control system are discussed. A summary of the site characteristics is then presented followed by a discussion of the larger type of experiments which may eventually be operated in this facility. The considerations for normal operation are concluded with a proposed method of handling fuel elements and radioactive wastes. The potential hazards involved with failures or malfunctions of this facility are considered in some detail. These are examined first from the standpoint of preventing them or minimizing their effects and second from the standpoint of what effect they might have on the reactor facility staff and the surrounding population. The most essential feature of the design for location at the proposed site is containment of the maximum credible accident.

  20. Plasma spark discharge reactor and durable electrode

    Energy Technology Data Exchange (ETDEWEB)

    Cho, Young I.; Cho, Daniel J.; Fridman, Alexander; Kim, Hyoungsup

    2017-01-10

    A plasma spark discharge reactor for treating water. The plasma spark discharge reactor comprises a HV electrode with a head and ground electrode that surrounds at least a portion of the HV electrode. A passage for gas may pass through the reactor to a location proximate to the head to provide controlled formation of gas bubbles in order to facilitate the plasma spark discharge in a liquid environment.

  1. Heat for industry from nuclear reactors

    Energy Technology Data Exchange (ETDEWEB)

    Kikoin, I.K.; Novikov, V.M.

    Two factors which incline nations toward the use of heat from nuclear reactors for industrial use are: 1) exhaustion of cheap fossil fuel resources, and 2) ecological problems associated both with extraction of fossil fuel from the earth and with its combustion. In addition to the usual problems that beset nuclear reactors, special problems associated with using heat from nuclear reactors in various industries are explored.

  2. Experimental Breeder Reactor I Preservation Plan

    Energy Technology Data Exchange (ETDEWEB)

    Julie Braun

    2006-10-01

    Experimental Breeder Reactor I (EBR I) is a National Historic Landmark located at the Idaho National Laboratory, a Department of Energy laboratory in southeastern Idaho. The facility is significant for its association and contributions to the development of nuclear reactor testing and development. This Plan includes a structural assessment of the interior and exterior of the EBR I Reactor Building from a preservation, rather than an engineering stand point and recommendations for maintenance to ensure its continued protection.

  3. Initiating Events for Multi-Reactor Plant Sites

    Energy Technology Data Exchange (ETDEWEB)

    Muhlheim, Michael David [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Flanagan, George F. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Poore, III, Willis P. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2014-09-01

    Inherent in the design of modular reactors is the increased likelihood of events that initiate at a single reactor affecting another reactor. Because of the increased level of interactions between reactors, it is apparent that the Probabilistic Risk Assessments (PRAs) for modular reactor designs need to specifically address the increased interactions and dependencies.

  4. PCRELAP5: data calculation program for RELAP 5 code; PCRELAP5: programa de calculo dos dados de entrada para o codigo RELAP5

    Energy Technology Data Exchange (ETDEWEB)

    Silvestre, Larissa Jacome Barros

    2016-07-01

    Nuclear accidents in the world led to the establishment of rigorous criteria and requirements for nuclear power plant operations by the international regulatory bodies. By using specific computer programs, simulations of various accidents and transients likely to occur at any nuclear power plant are required for certifying and licensing a nuclear power plant. Based on this scenario, some sophisticated computational tools have been used such as the Reactor Excursion and Leak Analysis Program (RELAP5), which is the most widely used code for the thermo-hydraulic analysis of accidents and transients in nuclear reactors in Brazil and worldwide. A major difficulty in the simulation by using RELAP5 code is the amount of information required for the simulation of thermal-hydraulic accidents or transients. The preparation of the input data requires a great number of mathematical operations to calculate the geometry of the components. Thus, for those calculations performance and preparation of RELAP5 input data, a friendly mathematical preprocessor was designed. The Visual Basic for Application (VBA) for Microsoft Excel demonstrated to be an effective tool to perform a number of tasks in the development of the program. In order to meet the needs of RELAP5 users, the RELAP5 Calculation Program (Programa de Calculo do RELAP5 - PCRELAP5) was designed. The components of the code were codified; all entry cards including the optional cards of each one have been programmed. In addition, an English version for PCRELAP5 was provided. Furthermore, a friendly design was developed in order to minimize the time of preparation of input data and errors committed by users. In this work, the final version of this preprocessor was successfully applied for Safety Injection System (SIS) of Angra 2. (author)

  5. Advances in light water reactor technologies

    CERN Document Server

    Saito, Takehiko; Ishiwatari, Yuki; Oka, Yoshiaki

    2010-01-01

    ""Advances in Light Water Reactor Technologies"" focuses on the design and analysis of advanced nuclear power reactors. This volume provides readers with thorough descriptions of the general characteristics of various advanced light water reactors currently being developed worldwide. Safety, design, development and maintenance of these reactors is the main focus, with key technologies like full MOX core design, next-generation digital I&C systems and seismic design and evaluation described at length. This book is ideal for researchers and engineers working in nuclear power that are interested

  6. High Performance Photocatalytic Oxidation Reactor System Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Pioneer Astronautics proposes a technology program for the development of an innovative photocatalytic oxidation reactor for the removal and mineralization of...

  7. NCSU reactor sharing program. Final technical report

    Energy Technology Data Exchange (ETDEWEB)

    Perez, P.B.

    1997-01-10

    The Nuclear Reactor Program at North Carolina State University provides the PULSTAR Research Reactor and associated facilities to eligible institutions with support, in part, from the Department of Energy Reactor Sharing Program. Participation in the NCSU Reactor Sharing Program continues to increase steadily with visitors ranging from advance high school physics and chemistry students to Ph.D. level research from neighboring universities. This report is the Final Technical Report for the DOE award reference number DE-FG05-95NE38136 which covers the period September 30, 1995 through September 30, 1996.

  8. Nanostructured Catalytic Reactors for Air Purification Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This SBIR Phase I project proposes the development of lightweight compact nanostructured catalytic reactors for air purification from toxic gaseous organic...

  9. Nanostructured Catalytic Reactors for Air Purification Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This SBIR Phase II project proposes the development of lightweight compact nanostructured catalytic reactors for air purification from toxic gaseous organic...

  10. Advanced nuclear reactor types and technologies

    Energy Technology Data Exchange (ETDEWEB)

    Ignatiev, V. [ed.; Feinberg, O.; Morozov, A. [Russian Research Centre `Kurchatov Institute`, Moscow (Russian Federation); Devell, L. [Studsvik Eco and Safety AB, Nykoeping (Sweden)

    1995-07-01

    The document is a comprehensive world-wide catalogue of concepts and designs of advanced fission reactor types and fuel cycle technologies. Two parts have been prepared: Part 1 Reactors for Power Production and Part 2 Heating and Other Reactor Applications. Part 3, which will cover advanced waste management technology, reprocessing and disposal for different nuclear fission options is planned for compilation during 1995. The catalogue was prepared according to a special format which briefly presents the project title, technical approach, development status, application of the technology, reactor type, power output, and organization which developed these designs. Part 1 and 2 cover water cooled reactors, liquid metal fast reactors, gas-cooled reactors and molten salt reactors. Subcritical accelerator-driven systems are also considered. Various reactor applications as power production, heat generation, ship propulsion, space power sources and transmutation of such waste are included. Each project is described within a few pages with the main features of an actual design using a table with main technical data and figure as well as references for additional information. Each chapter starts with an introduction which briefly describes main trends and approaches in this field. Explanations of terms and abbreviations are provided in a glossary.

  11. Neutron imaging on the VR-1 reactor

    Science.gov (United States)

    Crha, J.; Sklenka, L.; Soltes, J.

    2016-09-01

    Training reactor VR-1 is a low power research reactor with maximal thermal power of 1 kW. The reactor is operated by the Faculty of Nuclear Science and Physical Engineering of the Czech Technical University in Prague. Due to its low power it suits as a tool for education of university students and training of professionals. In 2015, as part of student research project, neutron imaging was introduced as another type of reactor utilization. The low available neutron flux and the limiting spatial and construction capabilities of the reactor's radial channel led to the development of a special filter/collimator insertion inside the channel and choosing a nonstandard approach by placing a neutron imaging plate inside the channel. The paper describes preliminary experiments carried out on the VR-1 reactor which led to first radiographic images. It seems, that due to the reactor construction and low reactor power, the neutron imaging technique on the VR-1 reactor is feasible mainly for demonstration or educational and training purposes.

  12. Supercritical-pressure light water cooled reactors

    CERN Document Server

    Oka, Yoshiaki

    2014-01-01

    This book focuses on the latest reactor concepts, single pass core and experimental findings in thermal hydraulics, materials, corrosion, and water chemistry. It highlights research on supercritical-pressure light water cooled reactors (SCWRs), one of the Generation IV reactors that are studied around the world. This book includes cladding material development and experimental findings on heat transfer, corrosion and water chemistry. The work presented here will help readers to understand the fundamental elements of reactor design and analysis methods, thermal hydraulics, materials and water

  13. BOILING SLURRY REACTOR AND METHOD FO CONTROL

    Science.gov (United States)

    Petrick, M.; Marchaterre, J.F.

    1963-05-01

    The control of a boiling slurry nuclear reactor is described. The reactor consists of a vertical tube having an enlarged portion, a steam drum at the top of the vertical tube, and at least one downcomer connecting the steam drum and the bottom of the vertical tube, the reactor being filled with a slurry of fissionabie material in water of such concentration that the enlarged portion of the vertical tube contains a critical mass. The slurry boils in the vertical tube and circulates upwardly therein and downwardly in the downcomer. To control the reactor by controlling the circulation of the slurry, a gas is introduced into the downcomer. (AEC)

  14. Sodium fast reactors with closed fuel cycle

    CERN Document Server

    Raj, Baldev; Vasudeva Rao, PR 0

    2015-01-01

    Sodium Fast Reactors with Closed Fuel Cycle delivers a detailed discussion of an important technology that is being harnessed for commercial energy production in many parts of the world. Presenting the state of the art of sodium-cooled fast reactors with closed fuel cycles, this book:Offers in-depth coverage of reactor physics, materials, design, safety analysis, validations, engineering, construction, and commissioning aspectsFeatures a special chapter on allied sciences to highlight advanced reactor core materials, specialized manufacturing technologies, chemical sensors, in-service inspecti

  15. Microchannel Methanation Reactors Using Nanofabricated Catalysts Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Makel Engineering, Inc. (MEI) and the Pennsylvania State University (Penn State) propose to develop and demonstrate a microchannel methanation reactor based on...

  16. Phosphorus removal in aerated stirred tank reactor

    Energy Technology Data Exchange (ETDEWEB)

    Ghigliazza, R.; Lodi, A.; Rovatti, M. [Inst. of Chemical and Process Engineering ``G.B. Bonino``, Univ. of Genoa (Italy)

    1999-03-01

    The possibility to obtain biological phosphorus removal in strictly aerobic conditions has been investigated. Experiments, carried out in a continuous stirred tank reactor (CSTR), show the feasibility to obtain phosphorus removal without the anaerobic phase. Reactor performance in terms of phosphorus abatement kept always higher then 65% depending on adopted sludge retention time (SRT). In fact increasing SRT from 5 days to 8 days phosphorus removal and reactor performance increase but overcoming this SRT value a decreasing in reactor efficiency was recorded. (orig.) With 6 figs., 3 tabs., 18 refs.

  17. Savannah River Site reactor safety assessment. Draft

    Energy Technology Data Exchange (ETDEWEB)

    Woody, N.D.; Brandyberry, M.D. [eds.] [Westinghouse Savannah River Co., Aiken, SC (United States); Baker, W.H.; Brandyberry, M.D.; Kearnaghan, D.P.; O`Kula, K.R.; Woody, N.D. [Westinghouse Savannah River Co., Aiken, SC (United States); Amos, C.N.; Weingardt, J.J. [Science Applications International Corp., San Diego, CA (United States)

    1991-02-28

    This report gives the results of a Savannah River Site (SRS) Production Reactor risk assessment. Measures of adverse consequences to health and safety resulting from representations of severe accidents in SRS reactors are presented. In addition, the report gives a summary of the methods employed to represent these accidents and to assess the resultant consequences. The report is issued to provide timely information to the US Department of Energy (DOE) on the risk of operation of SRS reactors, for insights into severe accident phenomena that contribute to this risk, and in support of improved bases for other Site programs in Heavy Water Reactor safety.

  18. History of fast reactor fuel development

    Energy Technology Data Exchange (ETDEWEB)

    Kittel, J.H.; Frost, B.R.T. (Argonne National Lab., IL (United States)); Mustelier, J.P. (COGEMA, Velizy-Villacoublay (France))

    1992-01-01

    Most of the first generation of fast reactors that were operated at significant power levels employed solid metal fuels. They were constructed in the United States and United Kingdom in the 1950s and included Experimental Breeder Reactor (EBR)-I and -II operated by Argonne National Laboratory, United States, the Enrico Fermi Reactor operated by the Atomic Power Development Associates, United States and DFR operated by the U.K. Atomic Energy Authority (UKAEA). Their paper tracer pre-development of fast reactor fuel from these early days through the 1980s including ceramic fuels.

  19. Plant maintenance and advanced reactors, 2006

    Energy Technology Data Exchange (ETDEWEB)

    Agnihotri, Newal (ed.)

    2006-09-15

    The focus of the September-October issue is on plant maintenance and advanced reactors. Major articles/reports in this issue include: Advanced plants to meet rising expectations, by John Cleveland, International Atomic Energy Agency, Vienna; A flexible and economic small reactor, by Mario D. Carelli and Bojan Petrovic, Westinghouse Electric Company; A simple and passively safe reactor, by Yury N. Kuznetsov, Research and Development Institute of Power Engineering (NIKIET), Russia; Gas-cooled reactors, by Jeffrey S. Merrifield, U.S. Nuclear Regulatory Commission; ISI project managment in the PRC, by Chen Chanbing, RINPO, China; and, Fort Calhoun refurbishment, by Sudesh Cambhir, Omaha Public Power District.

  20. Usage of burnable poison on research reactors

    Energy Technology Data Exchange (ETDEWEB)

    Villarino, Eduardo Anibal [INVAP S.E., San Carlos de Bariloche (Argentina)

    2002-07-01

    The fuel assemblies with burnable poison are widely used on power reactors, but there are not commonly used on research reactors. This paper shows a neutronic analysis of the advantages and disadvantages of the burnable poison usage on research reactors. This paper analyses both burnable poison design used on research reactors: Boron on the lateral wall and Cadmium wires. Both designs include a parametric study on the design parameters like the amount and geometry of the burnable poison. This paper presents the design flexibility using burnable poisons, it does not find an optimal or final design, which it will strongly depend on the core characteristics and fuel management strategy. (author)

  1. Autonomous Control of Space Nuclear Reactors Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Nuclear reactors to support future robotic and manned missions impose new and innovative technological requirements for their control and protection instrumentation....

  2. Continuous steroid biotransformations in microchannel reactors.

    Science.gov (United States)

    Marques, Marco P C; Fernandes, Pedro; Cabral, Joaquim M S; Znidaršič-Plazl, Polona; Plazl, Igor

    2012-01-15

    The use of microchannel reactor based technologies within the scope of bioprocesses as process intensification and production platforms is gaining momentum. Such trend can be ascribed a particular set of characteristics of microchannel reactors, namely the enhanced mass and heat transfer, combined with easier handling and smaller volumes required, as compared to traditional reactors. In the present work, a continuous production process of 4-cholesten-3-one by the enzymatic oxidation of cholesterol without the formation of any by-product was assessed. The production was carried out within Y-shaped microchannel reactors in an aqueous-organic two-phase system. Substrate was delivered from the organic phase to aqueous phase containing cholesterol oxidase and the product formed partitions back to the organic phase. The aqueous phase was then forced through a plug-flow reactor, containing immobilized catalase. This step aimed at the reduction of hydrogen peroxide formed as a by-product during cholesterol oxidation, to avoid cholesterol oxidase deactivation due to said by-product. This setup was compared with traditional reactors and modes of operation. The results showed that microchannel reactor geometry outperformed traditional stirred tank and plug-flow reactors reaching similar conversion yields at reduced residence time. Coupling the plug-flow reactor containing catalase enabled aqueous phase reuse with maintenance of 30% catalytic activity of cholesterol oxidase while eliminating hydrogen peroxide. A final production of 36 m of cholestenone was reached after 300 hours of operation.

  3. EFECTO DE UN PROGRAMA DE EJERCICIO AERÓBICO Y UN PROGRAMA DE CIRCUITO CON PESAS SOBRE LA CALIDAD DE VIDA, DISNEA Y RESISTENCIA CARDIORRESPIRATORIA EN SUJETOS CON ENFERMEDAD PULMONAR CRÓNICA

    OpenAIRE

    2007-01-01

    El objetivo de este estudio fue determinar el efecto de un programa de ejercicio aeróbico y un programa de circuito con pesas sobre la calidad de vida, disnea y resistencia cardiorrespiratoria en sujetos con Enfermedad Pulmonar Crónica (EPC). Metodología: el programa de rehabilitación se hizo durante ocho semanas, se realizó un pretest y un postest, se cumplió con una sesión semanal presencial, y las otras dos domiciliarias, se tuvo comunicación directa vía telefónica los días que realizab...

  4. Exemplos brasileiros de programas de controle de asma Brazilian examples of programs for the control of asthma

    Directory of Open Access Journals (Sweden)

    Alcindo Cerci Neto

    2008-02-01

    Full Text Available O objetivo do trabalho foi o de determinar quais são os programas brasileiros que apresentam experiência no manejo da asma. As informações sobre os programas e suas características foram obtidas via correio eletrônico. As variáveis analisadas eram relacionadas aos asmáticos, ao próprio programa e aos profissionais envolvidos. Utilizou-se a estatística descritiva. Foram analisados 17 programas. Todos os programas possuíam financiamento público, produção de materiais informativos e de treinamento e presença de médico especialista. Concluiu-se que a experiência acumulada em todos os programas pode ser utilizada como um dos pilares para a consolidação de um programa nacional de controle da asma.The aim of this study was to determine which Brazilian programs demonstrate experience in asthma management. Data on and characteristics of those programs were obtained by electronic mail. The variables studied were related to the program itself, its patients and staff. Descriptive statistics were used in the study, which evaluated 17 programs. All programs received public funding, produced educational/training materials and had specialized physicians on staff. We concluded that the experience accumulated by all the programs can be used as one of the pillars of a national program for the control of asthma in Brazil.

  5. Spheromak reactor-design study

    Energy Technology Data Exchange (ETDEWEB)

    Les, J.M.

    1981-06-30

    A general overview of spheromak reactor characteristics, such as MHD stability, start up, and plasma geometry is presented. In addition, comparisons are made between spheromaks, tokamaks and field reversed mirrors. The computer code Sphero is also discussed. Sphero is a zero dimensional time independent transport code that uses particle confinement times and profile parameters as input since they are not known with certainty at the present time. More specifically, Sphero numerically solves a given set of transport equations whose solutions include such variables as fuel ion (deuterium and tritium) density, electron density, alpha particle density and ion, electron temperatures.

  6. Reactors for nuclear electric propulsion

    Energy Technology Data Exchange (ETDEWEB)

    Buden, D.; Angelo, J.A. Jr.

    1981-01-01

    Propulsion is the key to space exploitation and power is the key to propulsion. This paper examines the role of nuclear fission reactors as the primary power source for high specific impulse electric propulsion systems for space missions of the 1980s and 1990s. Particular mission applications include transfer to and a reusable orbital transfer vehicle from low-Earth orbit to geosynchronous orbit, outer planet exploration and reconnaissance missions, and as a versatile space tug supporting lunar resource development. Nuclear electric propulsion is examined as an indispensable component in space activities of the next two decades.

  7. Aprendizaje interdependiente en un programa de posgrado de formación de profesores de matemáticas

    OpenAIRE

    Pinzón, Álvaro Andrés; Gómez, Pedro; Acebedo, Moisés

    2015-01-01

    En este documento y video, describimos un programa de formación de profesores de matemáticas de secundaria en ejercicio. Se trata de la Maestría en Educación Matemátca (MAD) de la Universidad de los Andes. Este programa se diseñó con base en las ideas de la teoría social del aprendizaje. Presentamos evidencias de cómo el esquema metodológico del programa promueve el aprendizaje interdependiente en los profesores en formación. El video presenta evidencias de los diferentes contextos en los que...

  8. Evaluación comparativa en distintas condiciones de un programa de enseñanza de la lectoescritura.

    OpenAIRE

    Aldo Bazán Ramírez

    1997-01-01

    Se reportan los datos obtenidos en diferentes condiciones didácticas y/o momentos de evaluación de un programa de enseñanza de la lecto-escritura con perspectiva interconductual. La primera condición didáctica evaluada, corresponde a una fase inicial de proyección del programa como apoyo a la actividad del docente (Mares, Plancarte y Rueda, 1994). La segunda evaluación se refiere, a una prueba realizada sobre cuatro programas experimentales diseñadas por Mares y et al., con base en la taxonom...

  9. Realización de un programa de radio para un medio radiofónico local: "El Notisiario"

    OpenAIRE

    MOCHOLÍ MOCHOLÍ, ALEX

    2017-01-01

    For this project, my goal was to do a radio program from the stage of pre-production to final stage. The result is a program with 30 minutes where I have used all my knowledge learned during the degree Preproducción de un programa radiofónico tipo informativo de noticias falsas de ámbito local y realización de un programa piloto del mismo con una duración de 30 minutos para un medio radiofónico local. El programa tratará de contar noticias falsas del estilo de ¿El Mundo Today¿ siempre mant...

  10. Aprendizaje interdependiente en un programa de posgrado de formación de profesores de matemáticas

    OpenAIRE

    Pinzón, Álvaro Andrés; Gómez, Pedro; Acebedo, Moisés

    2015-01-01

    En este documento y video, describimos un programa de formación de profesores de matemáticas de secundaria en ejercicio. Se trata de la Maestría en Educación Matemátca (MAD) de la Universidad de los Andes. Este programa se diseñó con base en las ideas de la teoría social del aprendizaje. Presentamos evidencias de cómo el esquema metodológico del programa promueve el aprendizaje interdependiente en los profesores en formación. El video presenta evidencias de los diferentes contextos en los que...

  11. Evaluación comparativa en distintas condiciones de un programa de enseñanza de la lectoescritura.

    OpenAIRE

    Aldo Bazán Ramírez

    1997-01-01

    Se reportan los datos obtenidos en diferentes condiciones didácticas y/o momentos de evaluación de un programa de enseñanza de la lecto-escritura con perspectiva interconductual. La primera condición didáctica evaluada, corresponde a una fase inicial de proyección del programa como apoyo a la actividad del docente (Mares, Plancarte y Rueda, 1994). La segunda evaluación se refiere, a una prueba realizada sobre cuatro programas experimentales diseñadas por Mares y et al., con base en la taxonom...

  12. Programa bolsa Família no CREAS Arlindo Rodrigues: o que os usuários pensam dele?

    OpenAIRE

    Denise Torrentes Vianna

    2011-01-01

    O presente estudo tem como objeto o Programa Bolsa Família, buscando captar, junto aos usuários, as suas impressões acerca deste, que é o carro-chefe dos programas sociais do atual governo federal. Com base nos pressupostos de que o Bolsa Família tem forte apelo popular; é legitimado em larga escala por diferentes segmentos sociais e tem centralidade no campo da Assistência Social, a hipótese é de que os usuários, enquanto beneficiários diretos do Programa tendem à sua defesa, apesar de difi...

  13. Programas de Rehabilitación Psicosocial en la Atención Comunitaria a las Personas con Psicosis

    Directory of Open Access Journals (Sweden)

    Juan González Cases

    2010-01-01

    Full Text Available Este artículo pretende presentar los principales programas de rehabilitación psicosocial enfocados hacia la mejora de la calidad de vida, autonomía, integración social y manejo de la enfermedad en personas que padecen un trastorno mental grave y duradero, en especial esquizofrenia. Además se señalarán algunas consideraciones metodológicas sobre la aplicación de dichos programas, sus elementos esenciales y la importancia de implementar programas e intervenciones que tengan cierto aval de eficacia y utilidad.

  14. Registro Nacional sobre Programas de Rehabilitación Cardíaca en México (RENAPREC)

    OpenAIRE

    Ilarraza Lomelí,Hermes; Herrera Franco,Rodolfo; Lomelí Rivas,Álvaro; Zavala Ramírez,Juana; Martínez Ramírez,Leonel; Ramos Becerril,Francisco José; Romo Escamilla,Ricardo Elías; Pacheco Beltrán,Nancy; Alonso Sánchez,Jesús; Mendoza Díaz,Pedro Miguel; Álvarez Cerro,Margarita; Cassaigne Guasco,María Elena; Muñoz Gutiérrez,Luz María Mayela

    2009-01-01

    Los programas de rehabilitación cardiovascular y prevención secundaria conforman una serie de maniobras terapéuticas, basadas en programas de entrenamiento físico y reducción del perfil de riesgo cardiovascular y han mostrado ser una maniobra eficaz de control de las enfermedades cardiovasculares. En México, estos programas se iniciaron en 1944 y, con el paso del tiempo, se han ido integrando diversas instituciones, tanto públicas como privadas, que han trabajado, en general, de forma aislada...

  15. Aplicación del programa de tratamiento integral para la obesidad infantil "Niñ@s en Movimiento"

    OpenAIRE

    Gussinyé Canabal, Sandra

    2006-01-01

    Consultable des del TDX Títol obtingut de la portada digitalitzada En esta tesis se muestran los resultados obtenidos con el programa de educación multidisciplinario para el tratamiento del sobrepeso y obesidad infantil «Niñ@s en Movimiento». Este es un programa estructurado de 11 semanas de duración, de formato grupal o individual, que consta de material educativo, tanto para el instructor como para los pacientes participantes, que servirán para ejecutar el programa. El material para e...

  16. Desarrollo de un programa orientado a objetos para la resolución del transporte de solutos

    OpenAIRE

    Pérez Arzola, Carlos

    2004-01-01

    El presente documento estudia las ventajas de la programación orientada a objetos aplicada a la resolución de las ecuaciones de transporte de solutos en aguas subterráneas, sin considerar reacciones químicas. El estudio se ha realizado mediante el desarrollo del programa PROW (PRocess Oriented Groundwater) en FORTRAN90. El programa PROW fue diseñado en la sección de Hidrología Subterránea del Departamento de Ingeniería del Terreno y Cartográfica de la UPC, a partir del programa ...

  17. Prospectiva del Programa de Ahorro Sistemático Integral en Mexicali, Baja California, México

    OpenAIRE

    José A. Suástegui Macías; Carlos Pérez Tello; H. Enrique Campbell; Hernán D. Magaña Almaguer

    2013-01-01

    El propósito de este trabajo es brindar información actualizada que permita elaborar una prospectiva del programa impulsado por el gobierno federal mexicano bajo el nombre de Programa de Ahorro Sistemático Integral (ASI) para el ahorro y uso eficiente de energía en el sector vivienda de Mexicali, Baja California. El presente estudio se realiza utilizando datos históricos del programa desde 1990 a la fecha e históricos de consumo de usuarios del servicio eléctrico. Se analiza la evolución del ...

  18. Los programas de desarrollo Micro-Regional: Caso de la Micro-Región Dos de Mayo

    OpenAIRE

    Rosales Albornoz, Edmundo

    1990-01-01

    Los Programas de Desarrollo Micro-Regional están siendo ejecutados por el actual Gobierno Constitucional con la finalidad de impulsar el desarrollo socio-económico de las zonas deprimidas y coordinar las acciones del sector público. El objetivo central de este trabajo es conocer cómo se están ejecutándose dichos Programas, en especial el Programa de Desarrollo Micro-Regional Dos de Mayo en el Departamento de Huánuco, con la finalidad de formular las recomendaciones del caso.

  19. O Programa Mais Educação do governo federal e sua versão em Duque de Caxias: o Programa Mais Escola

    Directory of Open Access Journals (Sweden)

    Sheila Cristina Monteiro Matos

    2011-01-01

    Full Text Available Este artigo tem como objetivo apresentar o Programa Mais Educação do governo federal e o Programa Mais Escola, de Duque de Caxias-RJ. O estudo consolidou-se por meio de uma análise documental. As considerações finais apontam que a implantação e a operacionalização destes Programas ainda são recentes e que ainda há impasses e desafios no tocante aos planejamentos e à operacionalização dos macrocampos do saber. Assim, discutir e problematizar sobre tais ampliações dos espaços educativos, levando em consideração que a escola seja central no processo de articulação dos planejamentos, deve ser condição sine qua num para continuar com as parcerias estabelecidas entre a escola e outros espaços educativos.

  20. Evaluación de un programa de política social: Programa Materno Infantil y Nutrición

    OpenAIRE

    Alicia Aronna

    2006-01-01

    Se presenta la evaluación del Programa Materno Infantil y Nutrición (PROMIN), dirigido a embarazadas y niños menores de cinco años, ejecutado en el Municipio de Rosario, Argentina. El objetivo es identificar los condicionantes que operaron en la puesta en la marcha según: el ambiente organizacional percibido por los jefes de los Centros de Salud y Desarrollo Infantil; la gestión de las actividades de los equipos de salud y las representaciones de la población en torno a la accesibilidad y ace...

  1. Clivajes, tensiones y dinámicas del cooperativismo de trabajo bajo programas sociales: el boom de las cooperativas del Programa Ingreso Social con Trabajo - Argentina Trabaja

    OpenAIRE

    2015-01-01

    Se analizan tensiones, clivajes, supuestos y actores desde el propio diseño del programa, usando como fuentes tanto entrevistas a informantes calificados y a miembros de organizaciones sociales, como documentos públicos e información proveniente de espacios de discusiones sobre la temática. Fil: Arcidiácono, Pilar. Universidad de Buenos Aires. Facultad de Ciencias Sociales. Buenos Aires. Argentina Fil: Bermúdez, Ángeles. Universidad de Buenos Aires. Facultad de Ciencias Sociales. Buenos...

  2. K-East and K-West Reactors

    Data.gov (United States)

    Federal Laboratory Consortium — Hanford's "sister reactors", the K-East and the K-West Reactors, were built side-by-side in the early 1950's. The two reactors went operational within four months of...

  3. Research on plasma core reactors

    Energy Technology Data Exchange (ETDEWEB)

    Jarvis, G.A.; Barton, D.M.; Helmick, H.H.; Bernard, W.; White, R.H.

    1977-01-01

    Experiments and theoretical studies are being conducted for NASA on critical assemblies with 1-m-diam by 1-m-long low-density cores surrounded by a thick beryllium reflector. These assemblies make extensive use of existing nuclear propulsion reactor components, facilities, and instrumentation. Due to excessive porosity in the reflector, the initial critical mass was 19 kg U(93.2). Addition of a 17-cm-thick by 89-cm-diam beryllium flux trap in the cavity reduced the critical mass to 7 kg when all the uranium was in the zone just outside the flux trap. A mockup aluminum UF/sub 6/ container was placed inside the flux trap and fueled with uranium-graphite elements. Fission distributions and reactivity worths of fuel and structural materials were measured. Finally, an 85,000-cm/sup 3/ aluminum canister in the central region was fueled with UF/sub 6/ gas and fission density distributions determined. These results will be used to guide the design of a prototype plasma core reactor which will test energy removal by optical radiation.

  4. Compound cryopump for fusion reactors

    CERN Document Server

    Kovari, M; Shephard, T

    2013-01-01

    We reconsider an old idea: a three-stage compound cryopump for use in fusion reactors such as DEMO. The helium "ash" is adsorbed on a 4.5 K charcoal-coated surface, while deuterium and tritium are adsorbed at 15-22 K on a second charcoal-coated surface. The helium is released by raising the first surface to ~30 K. In a separate regeneration step, deuterium and tritium are released at ~110 K. In this way, the helium can be pre-separated from other species. In the simplest design, all three stages are in the same vessel, with a single valve to close the pump off from the tokamak during regeneration. In an alternative design, the three stages are in separate vessels, connected by valves, allowing the stages to regenerate without interfering with each other. The inclusion of the intermediate stage would not affect the overall pumping speed significantly. The downstream exhaust processing system could be scaled down, as much of the deuterium and tritium could be returned directly to the reactor. This could reduce ...

  5. Dissecting Reactor Antineutrino Flux Calculations

    Science.gov (United States)

    Sonzogni, A. A.; McCutchan, E. A.; Hayes, A. C.

    2017-09-01

    Current predictions for the antineutrino yield and spectra from a nuclear reactor rely on the experimental electron spectra from 235U, 239Pu, 241Pu and a numerical method to convert these aggregate electron spectra into their corresponding antineutrino ones. In the present work we investigate quantitatively some of the basic assumptions and approximations used in the conversion method, studying first the compatibility between two recent approaches for calculating electron and antineutrino spectra. We then explore different possibilities for the disagreement between the measured Daya Bay and the Huber-Mueller antineutrino spectra, including the 238U contribution as well as the effective charge and the allowed shape assumption used in the conversion method. We observe that including a shape correction of about +6 % MeV-1 in conversion calculations can better describe the Daya Bay spectrum. Because of a lack of experimental data, this correction cannot be ruled out, concluding that in order to confirm the existence of the reactor neutrino anomaly, or even quantify it, precisely measured electron spectra for about 50 relevant fission products are needed. With the advent of new rare ion facilities, the measurement of shape factors for these nuclides, for many of which precise beta intensity data from TAGS experiments already exist, would be highly desirable.

  6. Avaliação do impacto de programas nutricionais Evaluation of nutritional programs's impact

    Directory of Open Access Journals (Sweden)

    Iná da Silva dos Santos

    2009-02-01

    Full Text Available Muito se tem deixado de aprender sobre programas e intervenções que realmente funcionam, em decorrência tanto da escassez quanto da variada qualidade metodológica das avaliações de impacto. Avaliações de impacto são estudos que medem o impacto sobre a saúde diretamente atribuível a uma política pública ou programa específico, independentemente do efeito de outros potenciais fatores explanatórios. Com o objetivo de discutir, à luz da epidemiologia, os tipos de estudos que podem ser empregados para a avaliação de impacto de programas em nutrição, são apresentados os delineamentos conforme o grau de inferência necessária para a avaliação (adequação, plausibilidade e probabilidade. São apresentados exemplos de estudos de avaliação de programas com desenhos transversais, quase-experimentos e ensaios randomizados controlados. São descritas as vantagens dos desenhos observacionais sobre as avaliações conduzidas com ensaios randomizados, quando o objetivo é avaliar a efetividade dos programas em condições reais de campo. É urgente que avaliações de impacto sejam conduzidas para fornecerem subsídios aos tomadores de decisões sobre os programas que valem a pena receber investimentos ou que necessitam ser reformulados.Persistent shortcomings in our knowledge of the actual effects of programs and interventions are due to a gap in both the quantity and methodological quality of impact evaluations. Impact evaluations are studies that measure the impact on health directly attributable to a specific program or policy, regardless of other potential explanatory factors. The aim of this manuscript is to present the types of epidemiological studies that can be employed in impact evaluations of nutrition programs. Study designs are presented according to the level of inference needed for the evaluation (adequacy, plausibility and probability. Examples of program evaluations using cross-sectional, quasi-experimental, and

  7. Cáncer de cuello uterino: análisis de la calidad de un programa

    Directory of Open Access Journals (Sweden)

    Cielo Noreña-Quiceno

    2010-01-01

    Full Text Available Objetivo: evaluar la calidad del Programa de detección temprana y control del cáncer de cuello uterino en una Unidad Prestadora de Servicios de Salud, de la Empresa Social del Estado Metrosalud, Medellín, Colombia, 2006-2008. Metodología: estudio descriptivo transversal. Se siguió el método de evaluación de programas de salud en los componentes problema, estructura, procesos y resultados propuesto por Avedis Donabediam, a partir de diferentes técnicas de recolección de información. Se hizo análisis estadístico descriptivo univariado y bivariado, y cualitativo de textos. Resultados: aunque este cáncer se considera un problema de salud pública, se carece de un programa estructurado para la intervención. Las actividades se centran en la detección y la prevención. Para su ejecución se dispone, en general, de los recursos humanos, físicos, materiales y económicos requeridos; la auxiliar de enfermería desarrolla la mayor parte de las actividades; el médico ordena tratamientos y remite usuarias a otro nivel según la red de servicios. Todas las usuarias reconocen la importancia del programa, la mayoría expresó satisfacción con la atención recibida. Conclusiones: el programa de detección temprana y control de cáncer de cuello uterino debe fortalecer todos sus componentes con mayor eficiencia y eficacia para lograr mejor impacto en la salud de las mujeres, disminuyendo la morbilidad y mortalidad por este cáncer. Retomar el concepto de integralidad, como programa de salud pública, debe ser una política de Estado y, su desarrollo, un compromiso de todos los funcionarios que laboran en él.

  8. Determinantes sociais da saude e o Programa Saude da Familia no municipio de Sao Paulo

    Directory of Open Access Journals (Sweden)

    Tatiana Pluciennik Dowbor

    2013-08-01

    Full Text Available OBJETIVO Analisar a situação do trabalho com determinantes sociais da saúde no âmbito do Programa Saúde da Família. MÉTODOS Estudo de caso com métodos mistos de pesquisa, ancorados em estratégia sequencial explanatória, com 171 gerentes das unidades do Programa Saúde da Família em São Paulo, SP, em 2005/2006. Questionários autopreenchíveis foram aplicados. Entrevistas semiestruturadas e grupos focais foram realizados com amostra intencional de profissionais envolvidos no trabalho com determinantes sociais da saúde. Os dados quantitativos foram analisados por análise descritiva, análise de correspondência múltipla, análise de agrupamento e testes de correlação entre variáveis. Os dados qualitativos foram apurados por análise de conteúdo e a criação de categorias temáticas. RESULTADOS Apesar da concentração de atividades direcionadas ao cuidado com a doença, o Programa Saúde da Família realizou atividades relacionadas à determinação social da saúde, contemplando todas as formas de abordagem da promoção da saúde (biológico, comportamental, psicológico, social e estrutural e os principais determinantes sociais da saúde descritos na literatura. Houve diferença significativa quanto à abrangência dos determinantes trabalhados nas unidades em relação às diferentes regiões do município. Constatou-se fragilidade das iniciativas e a sua desconexão com a estrutura programática do Programa Saúde da Família. CONCLUSÕES A quantidade e variedade de atividades com determinantes sociais da saúde realizadas no Programa Saúde da Família mostram potencial para trabalhar a determinação social da saúde. Mas a fluidez de objetivo e o caráter extraordinário das atividades descritas questionam sua sustentabilidade como parte integral da atual estrutura organizacional do programa.

  9. A new MTR fuel for a new MTR reactor: UMo for the Jules Horowitz reactor

    Energy Technology Data Exchange (ETDEWEB)

    Guigon, B. [CEA Cadarache, Dir. de l' Energie Nucleaire DEN, Reacteur Jules Horowitz, 13 - Saint-Paul-lez-Durance (France); Vacelet, H. [Compagnie pour l' Etude et la Realisation de Combustibles Atomiques, CERCA, Etablissement de Romans, 26 (France); Dornbusch, D. [Technicatome, Service d' Architecture Generale, 13 - Aix-en-Provence (France)

    2003-07-01

    Within some years, the Jules Horowitz Reactor will be the only working experimental reactor (material and fuel testing reactor) in France. It will have to provide facilities for a wide range of needs: from activation analysis to power reactor fuel qualification. In this paper will be presented the main characteristics of the Jules Horowitz Reactor: its total power, neutron flux, fuel element... Safety criteria will be explained. Finally merits and disadvantages of UMo compared to the standard U{sub 3}Si{sub 2} fuel will be discussed. (authors)

  10. Annual report on JEN-1 reactor; Informe periodico del Reactor JEN-1 correspondiente al ano 1971

    Energy Technology Data Exchange (ETDEWEB)

    Montes, J.

    1972-07-01

    In the annual report on the JEN-1 reactor the main features of the reactor operations and maintenance are described. The reactor has been critical for 1831 hours, what means 65,8% of the total working time. Maintenance and pool water contamination have occupied the rest of the time. The maintenance schedule is shown in detail according to three subjects. The main failures and reactor scrams are also described. The daily maximum values of the water activity are given so as the activity of the air in the reactor hall. (Author)

  11. Mathematical Modeling for Simulation of Nuclear Reactor Analysis

    OpenAIRE

    Salah Ud-Din Khan; Shahab Ud-Din Khan

    2013-01-01

    In this paper, we have developed a mathematical model for the nuclear reactor analysis to be implemented in the nuclear reactor code. THEATRe is nuclear reactor analysis code which can only work for the cylindrical type fuel reactor and cannot applicable for the plate type fuel nuclear reactor. Therefore, the current studies encompasses on the modification of THEATRe code for the plate type fuel element. This mathematical model is applicable to the thermal analysis of the reactor which is ver...

  12. Parametric sensitivity and runaway in tubular reactors

    Energy Technology Data Exchange (ETDEWEB)

    Morbidelli, M.; Varma, A.

    1982-09-01

    Parametric sensitivity of tubular reactors is analyzed to provide critical values of the heat of reaction and heat transfer parameters defining runaway and stable operations for all positive-order exothermic reactions with finite activation energies, and for all reactor inlet temperatures. Evaluation of the critical values does not involve any trial and error.

  13. Design of an organic simplified nuclear reactor

    Energy Technology Data Exchange (ETDEWEB)

    Shirvan, Koroush [Dept. of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge (United States); Forrest, Eric [Primary Standards Laboratory, Sandia National Laboratories, Albuquerque (United States)

    2016-08-15

    Numerous advanced reactor concepts have been proposed to replace light water reactors ever since their establishment as the dominant technology for nuclear energy production. While most designs seek to improve cost competitiveness and safety, the implausibility of doing so with affordable materials or existing nuclear fuel infrastructure reduces the possibility of near-term deployment, especially in developing countries. The organic nuclear concept, first explored in the 1950s, offers an attractive alternative to advanced reactor designs being considered. The advent of high temperature fluids, along with advances in hydrocracking and reforming technologies driven by the oil and gas industries, make the organic concept even more viable today. We present a simple, cost-effective, and safe small modular nuclear reactor for offshore underwater deployment. The core is moderated by graphite, zirconium hydride, and organic fluid while cooled by the organic fluid. The organic coolant enables operation near atmospheric pressure and use of plain carbon steel for the reactor tank and primary coolant piping system. The core is designed to mitigate the coolant degradation seen in early organic reactors. Overall, the design provides a power density of 40 kW/L, while reducing the reactor hull size by 40% compared with a pressurized water reactor while significantly reducing capital plant costs.

  14. Helix reactor: great potential for flow chemistry

    NARCIS (Netherlands)

    Geerdink, P.; Runstraat, A. van den; Roelands, C.P.M.; Goetheer, E.L.V.

    2009-01-01

    The Helix reactor is highly suited for precise reaction control based on good hydrodynamics. The hydrodynamics are controlled by the Dean vortices, which create excellent heat transfer properties, approach plug flow and avoid turbulence. The flexibility of this reactor has been demonstrated using a

  15. Startup of an industrial adiabatic tubular reactor

    NARCIS (Netherlands)

    Verwijs, J.W.; Berg, van den H.; Westerterp, K.R.

    1992-01-01

    The dynamic behaviour of an adiabatic tubular plant reactor during the startup is demonstrated, together with the impact of a feed-pump failure of one of the reactants. A dynamic model of the reactor system is presented, and the system response is calculated as a function of experimentally-determine

  16. Rotor for a pyrolysis centrifuge reactor

    DEFF Research Database (Denmark)

    2015-01-01

    The present invention relates to a rotor for a pyrolysis centrifuge reactor, said rotor comprising a rotor body having a longitudinal centre axis, and at least one pivotally mounted blade being adapted to pivot around a pivot axis under rotation of the rotor body around the longitudinal centre axis....... Moreover, the present invention relates to a pyrolysis centrifuge reactor applying such a rotor....

  17. Technical features of the MR reactor decommissioning

    Directory of Open Access Journals (Sweden)

    Craig David

    2008-01-01

    Full Text Available This paper presents a preliminary technical design for the dismantling of the MR reactor. The goal of the design is the removal of reactor components allowing the re-use of the building for a different nuclear related purpose. The sequence of segmentation procedures is established. Considerations on the size reduction and tooling are presented.

  18. University of Virginia Reactor Facility Decommissioning Results

    Energy Technology Data Exchange (ETDEWEB)

    Ervin, P. F.; Lundberg, L. A.; Benneche, P. E.; Mulder, R. U.; Steva, D. P.

    2003-02-24

    The University of Virginia Reactor Facility started accelerated decommissioning in 2002. The facility consists of two licensed reactors, the CAVALIER and the UVAR. This paper will describe the progress in 2002, remaining efforts and the unique organizational structure of the project team.

  19. Advanced tokamak concepts and reactor designs

    NARCIS (Netherlands)

    Oomens, A. A. M.

    2000-01-01

    From a discussion of fusion reactor designs based on today's well-established experience gained in the operation of large tokamaks, it is concluded that such reactors are economically not attractive. The physics involved in the various options for concept improvement is described, some examples

  20. The Design of a Nuclear Reactor

    Indian Academy of Sciences (India)

    2016-09-01

    The aim of this largely pedagogical article is toemploy pre-college physics to arrive at an understanding of a system as complex as a nuclear reactor. We focus on three key issues: the fuelpin, the moderator, and lastly the dimensions ofthe nuclear reactor.

  1. MODERATOR ELEMENTS FOR UNIFORM POWER NUCLEAR REACTOR

    Science.gov (United States)

    Balent, R.

    1963-03-12

    This patent describes a method of obtaining a flatter flux and more uniform power generation across the core of a nuclear reactor. The method comprises using moderator elements having differing moderating strength. The elements have an increasing amount of the better moderating material as a function of radial and/or axial distance from the reactor core center. (AEC)

  2. Selective purge for hydrogenation reactor recycle loop

    Science.gov (United States)

    Baker, Richard W.; Lokhandwala, Kaaeid A.

    2001-01-01

    Processes and apparatus for providing improved contaminant removal and hydrogen recovery in hydrogenation reactors, particularly in refineries and petrochemical plants. The improved contaminant removal is achieved by selective purging, by passing gases in the hydrogenation reactor recycle loop or purge stream across membranes selective in favor of the contaminant over hydrogen.

  3. The First Reactor, 40th Anniversary (rev.)

    Energy Technology Data Exchange (ETDEWEB)

    Allardice, Corbin; Trapnell, Edward R; Fermi, Enrico; Fermi, Laura; Williams, Robert C

    1982-12-01

    This booklet, an updated version of the original booklet describing the first nuclear reactor, was written in honor of the 40th anniversary of the first reactor or "pile". It is based on firsthand accounts told to Corbin Allardice and Edward R. Trapnell, and includes recollections of Enrico and Laura Fermi.

  4. The First Reactor, 40th Anniversary (rev.)

    Energy Technology Data Exchange (ETDEWEB)

    Allardice, Corbin; Trapnell, Edward R; Fermi, Enrico; Fermi, Laura; Williams, Robert C

    1982-12-01

    This booklet, an updated version of the original booklet describing the first nuclear reactor, was written in honor of the 40th anniversary of the first reactor or "pile". It is based on firsthand accounts told to Corbin Allardice and Edward R. Trapnell, and includes recollections of Enrico and Laura Fermi.

  5. Radiochemical problems of fusion reactors. 1. Facilities

    Energy Technology Data Exchange (ETDEWEB)

    Crespi, M.B.A.

    1984-02-01

    A list of fusion reactor candidate materials is given, for use in connection with blanket structure, breeding, moderation, neutron multiplication, cooling, magnetic field generation, electrical insulation and radiation shielding. The phenomena being studied for each group of materials are indicated. Suitable irradiation test facilities are discussed under the headings (1) accelerator-based neutron sources, (2) fission reactors, and (3) ion accelerators.

  6. Nuclear data requirements for fusion reactor nucleonics

    Energy Technology Data Exchange (ETDEWEB)

    Bhat, M.R.; Abdou, M.A.

    1980-01-01

    Nuclear data requirements for fusion reactor nucleonics are reviewed and the present status of data are assessed. The discussion is divided into broad categories dealing with data for Fusion Materials Irradiation Test Facility (FMIT), D-T Fusion Reactors, Alternate Fuel Cycles and the Evaluated Data Files that are available or would be available in the near future.

  7. Design of an Organic Simplified Nuclear Reactor

    Directory of Open Access Journals (Sweden)

    Koroush Shirvan

    2016-08-01

    Full Text Available Numerous advanced reactor concepts have been proposed to replace light water reactors ever since their establishment as the dominant technology for nuclear energy production. While most designs seek to improve cost competitiveness and safety, the implausibility of doing so with affordable materials or existing nuclear fuel infrastructure reduces the possibility of near-term deployment, especially in developing countries. The organic nuclear concept, first explored in the 1950s, offers an attractive alternative to advanced reactor designs being considered. The advent of high temperature fluids, along with advances in hydrocracking and reforming technologies driven by the oil and gas industries, make the organic concept even more viable today. We present a simple, cost-effective, and safe small modular nuclear reactor for offshore underwater deployment. The core is moderated by graphite, zirconium hydride, and organic fluid while cooled by the organic fluid. The organic coolant enables operation near atmospheric pressure and use of plain carbon steel for the reactor tank and primary coolant piping system. The core is designed to mitigate the coolant degradation seen in early organic reactors. Overall, the design provides a power density of 40 kW/L, while reducing the reactor hull size by 40% compared with a pressurized water reactor while significantly reducing capital plant costs.

  8. Naval reactors physics handbook. Volume 3: The physics of intermediate spectrum reactors

    Energy Technology Data Exchange (ETDEWEB)

    Stehn, J.R. [ed.] [Knolls Atomic Power Lab., Schenectady, NY (United States)

    1958-09-01

    The present volume has been prepared for persons with some knowledge of the physics of nuclear reactors. It is intended to make available the accumulated physics experience of the Knolls Atomic Power Laboratory in its work on intermediate spectrum reactors. Only those portions have been selected which were deemed to be most useful and significant to other physicists concerned with the problems of reactor design. The volume is divided into four parts which are more or less independent of one another. Part 1 (Chaps. 2--9), Investigation of Reactor Characteristics by Critical Assemblies, reflects the importance of the properties of critical assemblies and of the techniques for obtaining experimental information about such assemblies. Part 2 (Chaps. 10--20), Reactivity Effects Associated with Reactor Operation, details the use of both critical assemblies and reactor theory to make and test predictions of the manner in which the reactivity of an intermediate power reactor will vary during operation. Part 3 (Chaps. 21--26), Heat Generation and Nuclear Materials Problems, considers how reactor heat generation is spread out in space and time, and what nuclear effects result from the presence of beryllium or sodium in the reactor. Part 4 (Chaps. 27--38), Reactor Kinetics and Temperature Coefficients, relates to the transient or near-transient behavior of intermediate reactors.

  9. State space modeling of reactor core in a pressurized water reactor

    Science.gov (United States)

    Ashaari, A.; Ahmad, T.; Shamsuddin, Mustaffa; M, Wan Munirah W.; Abdullah, M. Adib

    2014-07-01

    The power control system of a nuclear reactor is the key system that ensures a safe operation for a nuclear power plant. However, a mathematical model of a nuclear power plant is in the form of nonlinear process and time dependent that give very hard to be described. One of the important components of a Pressurized Water Reactor is the Reactor core. The aim of this study is to analyze the performance of power produced from a reactor core using temperature of the moderator as an input. Mathematical representation of the state space model of the reactor core control system is presented and analyzed in this paper. The data and parameters are taken from a real time VVER-type Pressurized Water Reactor and will be verified using Matlab and Simulink. Based on the simulation conducted, the results show that the temperature of the moderator plays an important role in determining the power of reactor core.

  10. State space modeling of reactor core in a pressurized water reactor

    Energy Technology Data Exchange (ETDEWEB)

    Ashaari, A.; Ahmad, T.; M, Wan Munirah W. [Department of Mathematical Science, Faculty of Science, Universiti Teknologi Malaysia, 81310 Skudai, Johor (Malaysia); Shamsuddin, Mustaffa [Institute of Ibnu Sina, Universiti Teknologi Malaysia, 81310 Skudai, Johor (Malaysia); Abdullah, M. Adib [Swinburne University of Technology, Faculty of Engineering, Computing and Science, Jalan Simpang Tiga, 93350 Kuching, Sarawak (Malaysia)

    2014-07-10

    The power control system of a nuclear reactor is the key system that ensures a safe operation for a nuclear power plant. However, a mathematical model of a nuclear power plant is in the form of nonlinear process and time dependent that give very hard to be described. One of the important components of a Pressurized Water Reactor is the Reactor core. The aim of this study is to analyze the performance of power produced from a reactor core using temperature of the moderator as an input. Mathematical representation of the state space model of the reactor core control system is presented and analyzed in this paper. The data and parameters are taken from a real time VVER-type Pressurized Water Reactor and will be verified using Matlab and Simulink. Based on the simulation conducted, the results show that the temperature of the moderator plays an important role in determining the power of reactor core.

  11. Verification of Remote Inspection Techniques for Reactor Internal Structures of Liquid Metal Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Joo, Young Sang; Lee, Jae Han

    2007-02-15

    The reactor internal structures and components of a liquid metal reactor (LMR) are submerged in hot sodium of reactor vessel. The division 3 of ASME code section XI specifies the visual inspection as major in-service inspection (ISI) methods of reactor internal structures and components. Reactor internals of LMR can not be visually examined due to opaque liquid sodium. The under-sodium viewing techniques using an ultrasonic wave should be applied for the visual inspection of reactor internals. Recently, an ultrasonic waveguide sensor with a strip plate has been developed for an application to the under-sodium inspection. In this study, visualization technique, ranging technique and monitoring technique have been suggested for the remote inspection of reactor internals by using the waveguide sensor. The feasibility of these remote inspection techniques using ultrasonic waveguide sensor has been evaluated by an experimental verification.

  12. Verification of Remote Inspection Techniques for Reactor Internal Structures of Liquid Metal Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Joo, Young Sang; Lee, Jae Han

    2007-02-15

    The reactor internal structures and components of a liquid metal reactor (LMR) are submerged in hot sodium of reactor vessel. The division 3 of ASME code section XI specifies the visual inspection as major in-service inspection (ISI) methods of reactor internal structures and components. Reactor internals of LMR can not be visually examined due to opaque liquid sodium. The under-sodium viewing techniques using an ultrasonic wave should be applied for the visual inspection of reactor internals. Recently, an ultrasonic waveguide sensor with a strip plate has been developed for an application to the under-sodium inspection. In this study, visualization technique, ranging technique and monitoring technique have been suggested for the remote inspection of reactor internals by using the waveguide sensor. The feasibility of these remote inspection techniques using ultrasonic waveguide sensor has been evaluated by an experimental verification.

  13. Diez preguntas para auto-evaluar el perfil de egreso, el Programa y los cursos en una perspectiva de ABC (Aprendizaje Basado en Competencias) y con enfoque programa en la Ensenanza superior.

    OpenAIRE

    Leclercq, Dieudonné

    2016-01-01

    Actualmente las universidades estructuran sus perfiles de egreso, programas y cursos aplicando dos principios esenciales: (1) el Aprendizaje Basado en Competencias o ABC y (2) el Enfoque Programa. En la presente ponencia se analiza las significaciones e implicaciones de estas expresiones, así como el impacto que tienen sobre las evaluaciones en estos tres niveles. Además se presentan algunas preguntas clave que los docentes pueden (deben) hacerse para autoevaluar sus logros en cada nivel; pro...

  14. Scanning tunneling microscope assembly, reactor, and system

    Science.gov (United States)

    Tao, Feng; Salmeron, Miquel; Somorjai, Gabor A

    2014-11-18

    An embodiment of a scanning tunneling microscope (STM) reactor includes a pressure vessel, an STM assembly, and three spring coupling objects. The pressure vessel includes a sealable port, an interior, and an exterior. An embodiment of an STM system includes a vacuum chamber, an STM reactor, and three springs. The three springs couple the STM reactor to the vacuum chamber and are operable to suspend the scanning tunneling microscope reactor within the interior of the vacuum chamber during operation of the STM reactor. An embodiment of an STM assembly includes a coarse displacement arrangement, a piezoelectric fine displacement scanning tube coupled to the coarse displacement arrangement, and a receiver. The piezoelectric fine displacement scanning tube is coupled to the coarse displacement arrangement. The receiver is coupled to the piezoelectric scanning tube and is operable to receive a tip holder, and the tip holder is operable to receive a tip.

  15. Dynamic model of Fast Breeder Test Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Vaidyanathan, G., E-mail: vaidya@igcar.gov.i [Fast Reactor Technology Group, Indira Gandhi Center for Atomic Research, Kalpakkam (India); Kasinathan, N.; Velusamy, K. [Fast Reactor Technology Group, Indira Gandhi Center for Atomic Research, Kalpakkam (India)

    2010-04-15

    Fast Breeder Test Reactor (FBTR) is a 40 M Wt/13.2 MWe sodium cooled reactor operating since 1985. It is a loop type reactor. As part of the safety analysis the response of the plant to various transients is needed. In this connection a computer code named DYNAM was developed to model the reactor core, the intermediate heat exchanger, steam generator, piping, etc. This paper deals with the mathematical model of the various components of FBTR, the numerical techniques to solve the model, and comparison of the predictions of the code with plant measurements. Also presented is the benign response of the plant to a station blackout condition, which brings out the role of the various reactivity feedback mechanisms combined with a gradual coast down of reactor sodium flow.

  16. Reactivity control assembly for nuclear reactor. [LMFBR

    Science.gov (United States)

    Bollinger, L.R.

    1982-03-17

    This invention, which resulted from a contact with the United States Department of Energy, relates to a control mechanism for a nuclear reactor and, more particularly, to an assembly for selectively shifting different numbers of reactivity modifying rods into and out of the core of a nuclear reactor. It has been proposed heretofore to control the reactivity of a breeder reactor by varying the depth of insertion of control rods (e.g., rods containing a fertile material such as ThO/sub 2/) in the core of the reactor, thereby varying the amount of neutron-thermalizing coolant and the amount of neutron-capturing material in the core. This invention relates to a mechanism which can advantageously be used in this type of reactor control system.

  17. Power Control Method for Research Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Baang, Dane; Suh, Yongsuk; Park, Cheol [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2015-05-15

    Considering safety-oriented design concept and other control environment, we developed a simple controller that provides limiting function of power change- rate as well as fine tracking performance. The design result has been well-proven via simulation and actual application to a TRIGA-II type research reactor. The proposed controller is designed to track the PDM(Power Demand) from operator input as long as maintaining the power change rate lower than a certain value for stable reactor operation. A power control method for a TRIGA-II type research reactor has been designed, simulated, and applied to actual reactor. The control performance during commissioning test shows that the proposed controller provides fine control performance for various changes in reference values (PDM), even though there is large measurement noise from neutron detectors. The overshoot at low power level is acceptable in a sense of reactor operation.

  18. Precision spectroscopy with reactor anti-neutrinos

    CERN Document Server

    Huber, P; Huber, Patrick; Schwetz, Thomas

    2004-01-01

    In this work we present an accurate parameterization of the anti-neutrino flux produced by the isotopes 235U, 239Pu and 241Pu in nuclear reactors. We determine the coefficients of this parameterization, as well as their covariance matrix, by performing a fit to spectra inferred from experimentally measured beta spectra. Subsequently we show that flux shape uncertainties play only a minor role in the KamLAND experiment, however, we find that future reactor neutrino experiments to measure the mixing angle $\\theta_{13}$ are sensitive to the fine details of the reactor neutrino spectra. Finally, we investigate the possibility to determine the isotopic composition in nuclear reactors through an anti-neutrino measurement. We find that with a 3 month exposure of a one ton detector the isotope fractions and the thermal reactor power can be determined at a few percent accuracy, which may open the possibility of an application for safeguard or non-proliferation objectives.

  19. Reactor assessments of advanced bumpy torus configurations

    Energy Technology Data Exchange (ETDEWEB)

    Uckan, N.A.; Owen, L.W.; Spong, D.A.; Miller, R.L.; Ard, W.B.; Pipkins, J.F.; Schmitt, R.J.

    1984-02-01

    Recently, several innovative approaches were introduced for enhancing the performance of the basic ELMO Bumpy Torus (EBT) concept and for improving its reactor potential. These include planar racetrack and square geometries, Andreoletti coil systems, and bumpy torus-stellarator hybrids (which include twisted racetrack and helical axis stellarator - snakey torus). Preliminary evaluations of reactor implications of each approach have been carried out based on magnetics (vacuum) calculations, transport and scaling relationships, and stability properties deduced from provisional configurations that implement the approach but are not necessarily optimized. Further optimization is needed in all cases to evaluate the full potential of each approach. Results of these studies indicate favorable reactor projections with a significant reduction in reactor physical size as compared to conventional EBT reactor designs carried out in the past.

  20. Testing commercial catalysts in recycle reactors

    Energy Technology Data Exchange (ETDEWEB)

    Berty, J.M.

    1979-01-01

    Recycle reactors for quality control of catalyst production and for testing new catalysts for known or new processes have the following advantages over tubular reactors: they can reproduce the physical and chemical regime which surrounds the catalyst in a commercial reactor; they can achieve high mass and heat transfer; they exhibit uniform coke deposit; and they provide independence of mass velocity and space velocity. Their disadvantage is the unconventional specification of experiments in terms of discharge concentration which derives from the implicit nature of the basic mathematical relationships. Recycle reactor test methods are outlined for quality control and for testing catalysts, e.g., supported nickel from different manufacturers, for processes whose chemistry is well known. Approaches for testing catalysts for new processes are discussed. The standard recycle reactor developed at Union Carbide Corp. and manufactured by Autoclave Engineers, and several of its modifications are described.