WorldWideScience

Sample records for storage donnees disponibles

  1. Data available for the evaluation of the risks related to the bio-aerosols emitted by the domestic wastes storage; Donnees disponibles pour l'evaluation des risques lies aux bioaerosols emis par les installations de stockage des dechets menagers et assimiles

    Energy Technology Data Exchange (ETDEWEB)

    Delery, L.

    2003-12-15

    The dusts production during exploitation in cells is the main source of bio-aerosols emission in storage centers. This report presents data on biological characterization of domestic wastes and the related atmospheric emissions. It concludes that the sanitary risk for the residents is weak and the 200 m area decided by the regulation is sufficient. Meanwhile it is recommended to control the emission levels during particularly meteorological conditions as humid, windy and not very sunny. (A.L.B.)

  2. Non disponible / Not available

    OpenAIRE

    Bernard , Nguyen

    2001-01-01

    Non disponible / Not available; La chronobiologie est une science récente qui apporte une nouvelle manière de voir la médecine. La chronobiologie, grâce aux développements des moyens techniques de mesure physiologique, a contribué à faire d'importants progrès dans les connaissances tant dans le domaine de la physiologie que de la pathologie ou de la thérapeutique. Et son étude dans l'hypertension artérielle semble logique, puisqu'en France cette pathologie touche jusqu'à 20 à 30% de la popula...

  3. Non disponible / Not available

    OpenAIRE

    Muriel , Henry

    2010-01-01

    Non disponible / Not available; L'incidence et la prévalence de l'insuffisance rénale chronique terminale (IRCT) en France sont en augmentation. Lors de cette maladie, la fonction rénale diminue et les reins ne peuvent plus assurer leurs fonctions.Le recours à une technique de suppléance est obligatoire pour vivre.Ces techniques sont la dialyse péritonéale, l'hémodialyse et la greffe rénale.Les patients en insuffisance rénale chronique terminale sont des patients polymédiqués. Il existe de no...

  4. Non disponible / Not available

    OpenAIRE

    Clément , Wielgus

    2013-01-01

    Non disponible / Not available; L'insuffisance rénale chronique touche plus de 2,5 millions de français. Parmi eux, plus de 55000 personnes en stade terminal, doivent recourir à un traitement de suppléance, qui, le plus souvent, est l'hémodialyse. Cette insuffisance rénale terminale est souvent associée et attribuable à d'autres maladies. C'est la diminution du nombre de néphrons sains fonctionnels qui entraîne l'apparition des symptômes de l'insuffisance rénale chronique. Ainsi le syndrome n...

  5. Non disponible / Not available

    OpenAIRE

    Claire , Michel

    2015-01-01

    Non disponible / Not available; Introduction : Les capacités de reconnaissance des expressions faciales s’altèrent avec l’âge et dans certaines pathologies telles que la maladie d’Alzheimer mais aussi, entre autres, dans d’autres démences, maladies neurologiques ou psychiatriques. Les soignants peuvent-ils être assimilés à la population générale en ce qui concerne la reconnaissance des expressions faciales ? Les patients atteints de maladie d’Alzheimer sont-ils capables d’exprimer des émotion...

  6. Non disponible / Not available

    OpenAIRE

    Maud , Conti

    2010-01-01

    Non disponible / Not available; La stratification des résines composites sur dents antérieures est la méthode directe qui devrait être systématiquement employée pour reconstituer la région antérieure.En effet, cette technique permet d'obtenir d'excellents résultats durables et esthétiques. Cependant, elle requiert un certain apprentissage puisqu'il s'agit d'apposer des couches successives de résine composite dans le bon ordre et dans de bonnes proportions, en suivant un protocole bien précis....

  7. Non disponible / Not available

    OpenAIRE

    Sonia , Assili

    2014-01-01

    Non disponible / Not available; Dans de nombreux pays développés, les patients cherchent des alternatives auxsoins dentaires devenus difficiles d’accès pour de multiples raisons. Parallèlement, lamondialisation n’épargne aucun secteur, si bien que nous assistons à la commercialisation dela santé. Le patient tend à devenir un consommateur de soins et le praticien un délivreur desoins. L’offre de soins à l’étranger et aujourd’hui dans des centres dentaires dits « low-cost »apparaissent comme un...

  8. Non disponible / Not available

    OpenAIRE

    Marc , Thomas

    2011-01-01

    Non disponible / Not available; Les inspecteurs de santé publique travaillent désormais au sein de l'ARS.Ils veillent au respect et à l'application du code de la santé publique et mènent des inspections dans les pharmacies d'officine notamment pour contrôler le travail du pharmacien concernant les médicaments thermo-sensibles.Le respect de la chaîne du froid est un enjeu quotidien pour le pharmacien.Quels sont les recommandations à suivre et sur quels critères doit-il se baser pour respecter ...

  9. Non disponible / Not available

    OpenAIRE

    Frédéric , Pitetti

    2004-01-01

    Non disponible / Not available; L'article R5015-G du Code de déontologie impose au pharmacien de « faire preuve du même dévouement envers toutes les personnes qui ont recours à son art». Par conséquent, les pharmaciens doivent être capables de s'adapter et de trou ver des solutions pour communiquer avec les personnes étrangères, illettrées, aveugles ou sourdes . Dans cette thèse, nous nous intéressons à la relation de communication entre le pharmacien et le sourd profond .Dans la partie bibli...

  10. Non disponible / Not available

    OpenAIRE

    Romuald , Bour

    2013-01-01

    Non disponible / Not available; La prise en charge d'une personne institutionnalisée atteinte de démence est souvent marquée par l'apparition de troubles du comportement perturbateurs pour la vie des autres résidents et la réalisation des soins. Ces situations peuvent amener les Médecins Traitants, en synergie avec le personnel soignant, à recourir aux Consultations Mémoire en vue d'une réévaluation clinique, d'une adaptation thérapeutique ou de la mise en place de traitements non pharmacolog...

  11. Non disponible / Not available

    OpenAIRE

    Fabrice , Lavigne

    2002-01-01

    Non disponible / Not available; Nous rapportons les résultats d'une enquête prospective de 6 mois concernant 441 patients ayant présenté une douleur abdominale aiguë. Cette étude a pour objectif d 'étudier lors d'affection abdominale aiguë, d'autres paramètres hématologiques que la classique hyperleucocytose avec polynucleose neutrophile.Plus la lymphopénie est profonde, plus l'affection est potentiellement sévère; cependant sa sensibilité est faible. Une lymphopénie profonde est un pronostic...

  12. Non disponible / Not available

    OpenAIRE

    Erika , Nnang Obada

    2010-01-01

    Non disponible / Not available; La préservation du capital vasculaire est un challenge permanent dans la prise en charge des patients insuffisants rénaux chroniques. Cette démarche doit être systématique, précoce, même en situation d'insuffisance rénale aiguë. La mise en place de cathéters pour l'hémodialyse doit être encadrée. Tout dysfonctionnement réduit l'efficacité d'une séance de dialyse avec une morbidité non négligeable. Dans une étude rétrospective de 62 patients hémodialysés inciden...

  13. Non disponible / Not available

    OpenAIRE

    Edouard , Kunegel

    2013-01-01

    Non disponible / Not available; Seules trois méthodes de traitement, aujourd'hui, s'offrent au patient insuffisant rénal chronique (IRC) en phase terminale : la dialyse péritonéale, l'hémodialyse, et la transplantation rénale. L'esquisse de ces techniques sera dessinée au fil de ce travail, avec un focus particulier sur l'hémodialyse, méthode à ce jour encore la plus utilisée. À ses débuts, les résultats proposés par cette procédure, assortis d'une lourde mortalité, étaient peu concluants.Jus...

  14. Non disponible / Not available

    OpenAIRE

    Nicolas , Laurent

    2013-01-01

    Non disponible / Not available; Nous avons étudié de manière rétrospective la survie et les complications péri opératoires au sein de deux groupes de patients octogénaires ayant bénéficié dans notre centre de l'implantation d'une bioprothèse par méthode TAVI ou par chirurgie conventionnelle. Les deux groupes ont été appareillés par un score de propensité. Entre juillet 2009 et juin 2013, 97 octogénaires ont bénéficié d'un TAVI dans notre centre. Nous avons identifié un groupe contrôle de 220 ...

  15. Non disponible / Not available

    OpenAIRE

    Marion , Panek

    2009-01-01

    Non disponible / Not available; La peur du chirurgien-dentiste est un problème sérieux et très répandu. Chez les enfants, elle est la principale cause de difficultés comportementales au fauteuil, d'interférences avec le bon déroulement des séances et parfois d'orientation vers des structures spécialisées. Cela engendre bien souvent des conséquences négatives pour la santé buccodentaires du jeune patient sans oublier l'impact émotionnel (honte, impuissance ). Cependant des soins dentaires de b...

  16. Non disponible / Not available

    OpenAIRE

    Pierre , Cuny

    2007-01-01

    Non disponible / Not available; La restauration des dents antérieures par la céramique collée impose une réussite au niveau de la biocompatibilité, de la forme mais également de la couleur du résultat définitif. En raison de l'opacité variable des céramiques utilisées, les industriels proposent des polymères de collage dont le mécanisme de prise est dit « dual ». Une gamme étendue de couleur de ces polymères decollage ainsi que des niveaux d'opacité variable permettent de répondre au mieux à ...

  17. Non disponible / Not available

    OpenAIRE

    Alexandre , Eichelberger

    2010-01-01

    Non disponible / Not available; Les objectifs de cette contribution sont d'exposer la relation qui existe entre la lumière et la matière. L'approche que nous avons de la couleur d'un matériau de restauration est mise en évidence tant au niveau de sa perception que de la relation qu'elle peut avoir avec la translucidité de celui-ci. La structure et la composition des céramiques dentaires et des résinescomposites sont exposées de manière à mieux comprendre les différentes difficultés de choix d...

  18. Non disponible / Not available

    OpenAIRE

    Julie , Grandjean

    2010-01-01

    Non disponible / Not available; Un Plan de lutte contre le cancer a été ouvert en 2002 à l'initiative du Président de la République, Jacques Chirac. Il combine un ensemble de 70 Mesures échelonnées d'avril 2003 à décembre 2007, avec pour objectif vaincre la maladie et diminuer la mortalité par cancer de 20% pour 2007. Dans ce contexte, la réalisation d'un audit est apparue pertinente pour faire un état des lieux sur la prise en charge des patients traités par chimiothérapie anticancéreuse au ...

  19. Non disponible / Not available

    OpenAIRE

    Aurélie , Moronval

    2012-01-01

    Non disponible / Not available; Après différents rappels sur la structure du parodonte et des parodontopathies, nous étudierons l'influence du régime alimentaire sur la santé parodontale. Nous analyserons les propriétés physiques et chimiques des aliments pour connaître leur influence sur la santé des tissus parodontaux. Diététique et parodontopathies sont fortement liées. Un régime alimentaire équilibré combiné à une bonne hygiène buccale participe à la prévention des pathologies buccales....

  20. Non disponible / Not available

    OpenAIRE

    Diane , François

    2010-01-01

    Non disponible / Not available; Le millepertuis ou Hypericum perforatum L. est connu depuis l'antiquité, où il était utilisé pour soigner les blessures. Au Moyen-Age, appelé « chasse-diable », il était utilisé pour éloigner les mauvais esprits. Aujourd'hui, il est connu pour ses propriétés antidépressives.Il est efficace dans les dépressions légères à modérées, ses propriétés antidépressives sont dues principalement à l'hyperforine.La sommité fleurie est inscrite à la Pharmacopée européenne d...

  1. Non disponible / Not available

    OpenAIRE

    Térence , Courbariaux

    2006-01-01

    Non disponible / Not available; Suite à la parution de l'article R.5104-15 du code de la santé publique 2003 relatif aux responsabilités portées par les pharmacies à usage intérieur, le CHU de Brabois a fait le pari de remplacer une partie du matériel stérile par de l'usage unique. Cette décision a nécessité la mise en place d'une centrale d'approvisionnement en matériel stérile (CAMS). Afin de se prévenir des risques de rupture et de péremption, des techniques de gestion du stock de DMS ont ...

  2. Places disponibles*/Places available **

    CERN Multimedia

    2003-01-01

    Des places sont disponibles dans les cours suivants : Places are available in the following course : Java 2 Enterprise Edition - Part 2 : Enterprise JavaBeans : 20 - 22.1.03 (3 days) Introduction to PVSS : 27.1.03 (Afternoon) free course but registration necessary Basic PVSS : 28 - 30.1.03 (3 days) MAGNE-03 - Magnétisme pour l'électrotechnique : 28 - 30.1.03 (3 jours) MAGNE-03 - Magnetism for Technical Electronics : 11 - 13.2.03 (3 days) AutoCAD 2002 - niveau 1 : 24, 25.2 et 3, 4.3.03 (4 jours) AutoCAD 2002 - niveau 2 : 10 & 11.3.03 (2 jours) C++ for Particle Physicists : 10 - 14.3.03 (6 X 3 hour lectures) AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 17, 18, 24 & 25.3.03 (6 jours) * Etant donné le délai d'impression du Bulletin, ces places peuvent ne plus être disponibles au moment de sa parution. Veuillez consulter notre site Web pour avoir la dernière mise à jour. ** The number of places available may vary. Please check our Web site to find out the current availability. Si vous désirez ...

  3. Places disponibles/Places available

    CERN Multimedia

    2004-01-01

    Si vous désirez participer à l'un des cours suivants, veuillez en discuter avec votre superviseur et vous inscrire électroniquement en direct depuis les pages de description des cours dans le Web que vous trouvez à l'adresse : http://www.cern.ch/Training/ ou remplissez une « demande de formation » disponible auprès du Secrétariat de votre Division ou de votre DTO (Délégué divisionnaire à la formation). Les places seront attribuées dans l'ordre de réception des inscriptions. If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an "application for training" form available from your Divisional Secretariat or from your DTO (Divisional Training Off...

  4. COSTE SALARIAL Y RENTA DISPONIBLE DEL TRABAJADOR

    Directory of Open Access Journals (Sweden)

    Antonio Pérez Carrasco

    2009-02-01

    Full Text Available Se expone la relación entre el coste laboral y la renta disponible del trabajador, así como el análisis de las consecuencias sobre el salario derivadas de la cotización a la Seguridad Social. The relationship between labour costs and disposable income of the workers is exposed as well as the analysis of the impact on wages resulting from contributions to Social Security.

  5. Statistical yearbook. 1999. Data available as of 30 November 2001. 46 ed. Annuaire statistique. 1999. Donnees disponibles au 30 novembre 2001

    International Nuclear Information System (INIS)

    2002-01-01

    This is the forty-sixth issue of the United Nations Statistical Yearbook, prepared by the Statistics Division, Department of Economic and Social Affairs of the United Nations Secretariat. It contains series covering, in general, 1990-1999 or 1991-2000, based on statistics available to the Statistics Division up to 30 November 2001. The major purpose of the Statistical Yearbook is to provide in a single volume a comprehensive compilation of internationally available statistics on social and economic conditions and activities, at world, regional and national levels, covering roughly a ten-year period. Most of the statistics presented in the Yearbook are extracted from more detailed, specialized publications prepared by the Statistics Division and by many other international statistical services. Thus, while the specialized publications concentrate on monitoring topics and trends in particular social and economic fields, the Statistical Yearbook tables provide data for a more comprehensive, overall description of social and economic structures, conditions, changes and activities. The objective has been to collect, systematize and coordinate the most essential components of comparable statistical information which can give a broad and, to the extent feasible, a consistent picture of social and economic processes at world, regional and national levels. More specifically, the Statistical Yearbook provides systematic information on a wide range of social and economic issues which are of concern in the United Nations system and among the governments and peoples of the world. A particular value of the Yearbook, but also its greatest challenge, is that these issues are extensively interrelated. Meaningful analysis of these issues requires systematization and coordination of the data across many fields. These issues include: General economic growth and related economic conditions; economic situation in developing countries and progress towards the objectives adopted for the United Nations development decades; population and urbanization, and their growth and impact; employment, inflation and wages; energy production and consumption and the development of new energy sources; expansion of trade; supply of food and alleviation of hunger; financial situation and external payments and receipts; education, training and eradication of illiteracy; improvement in general living conditions; pollution and protection of the environment; assistance provided to developing countries for social and economic development purposes

  6. 90.000 trabajos disponibles en Digital.CSIC

    OpenAIRE

    Oficina Técnica de Digital.CSIC; Román-Molina, Juan

    2014-01-01

    Póster elaborado al alcanzar el repositorio los 90.000 trabajos.-- Se incluye versión en formato PDF.-- El resto de los hitos está disponible en la siguiente url: http://digital.csic.es/enCifras/crecimientoLineal.jsp

  7. Ensembles de donnees nationales : sources d'information sur la garde des enfants au Canada

    OpenAIRE

    Forer, Barry; Hertzman, Clyde; Kohen, Dafna

    2006-01-01

    La presente etude fournit une description des differents ensembles de donnees canadiennes qui pourraient etre utilises pour examiner des questions relatives au recours aux services de garde. Les ensembles de donnees nationales qui traitent des tendances de l'emploi, de l'emploi du temps, des revenus familiaux, du soutien social ainsi que des mesures de la sante des enfants, des adolescents et des adultes ont ete inclus. On a conclu que de nombreuses questions demeurent sans reponse en ce qui ...

  8. ENSEIGNEMENT TECHNIQUE TECHNICAL TRAINING Places disponibles*/Places available **

    CERN Multimedia

    2003-01-01

    * Etant donné le délai d'impression du Bulletin, ces places peuvent ne plus être disponibles au moment de sa parution. Veuillez consulter notre site Web pour avoir la dernière mise à jour. ** The number of places available may vary. Please check our Web site to find out the current availability. Des places sont disponibles dans les cours suivants : Places are available in the following courses : Java 2 Enterprise Edition - Part 2 : Enterprise JavaBeans : 8 - 10.10.2003 (3 days) FileMaker - niveau 1 : 9 & 10.10.03 (2 jours) EXCEL 2000 - niveau 1 : 20 & 22.10.03 (2 jours) CLEAN-2002 : Working in a Cleanroom : 23.10.03 (half day, free of charge) Plannification de projet avec MS-Project/Project Scheduling with MS-Project : 2 sessions : 23.10 & 4.11.03 and 18 &25.11.03 (2 jours/2 days - langue à définir/language to be defined) AutoCAD 2002 – Level 1 : 3, 4, 12, 13.11.03 (4 days) Introduction to Pspice : 4.11...

  9. Places disponibles*/Places available ** - French version only

    CERN Multimedia

    2003-01-01

    Des places sont disponibles dans les cours suivants : Places are available in the following course : Java 2 Enterprise Edition - Part 2 : Enterprise JavaBeans : 20 - 22.1.03 (3 days) Introduction to PVSS : 27.1.03 (Afternoon) free course but registration necessary Basic PVSS : 28 - 30.1.03 (3 days) MAGNE-03 - Magnétisme pour l'électrotechnique : 28 - 30.1.03 (3 jours) Introduction to the CERN Engineering Data Management System : 28.1.03 (1 day) MAGNE-03 - Magnetism for Technical Electronics : 11 - 13.2.03 (3 days) AutoCAD 2002 - niveau 1 : 24, 25.2 et 3, 4.3.03 (4 jours) AutoCAD 2002 - niveau 2 : 27 & 28.2.03 (2 jours) C++ for Particle Physicists : 10 - 14.3.03 (6 X 3 hour lectures) AutoCAD Mechanical 6 PowerPack (F) : 12, 13, 17, 18, 24 & 25.3.03 (6 jours) * Etant donné le délai d'impression du Bulletin, ces places peuvent ne plus être disponibles au moment de sa parution. Veuillez consulter notre site Web pour avoir la dernière mise à jour. ** The number of places available may va...

  10. Tratamientos para dejar de fumar, disponibles en México

    Directory of Open Access Journals (Sweden)

    Sansores Raúl H

    2002-01-01

    Full Text Available Objetivo. Describir las estrategias terapéuticas disponibles para ayudar a los fumadores a dejar de fumar. Material y métodos. Estudio realizado en el Instituto Nacional de Enfermedades Respiratorias, México. Se hizo una revisión en Medline con el encabezado de meta-análisis y se consultó el Cochrane Library, de 1990 a 2001. Resultados. La farmacoterapia muestra una buena probabilidad promedio de éxito para dejar de fumar expresada como una relación entre el medicamento activo y el placebo (índice de 39, 78, 79, 117 y 119% para los chicles de nicotina, los parches de nicotina, el bupropión, el inhalador de nicotina y el spray nasal de nicotina, respectivamente. El éxito de la terapia conductual puede ser buena (RM=3.8, sin embargo, se requiere más investigación. Conclusiones. Se hace énfasis en la necesidad de combinar la terapia cognitivo-conductual con el uso de fármacos, así como la combinación de éstos entre sí para incrementar las posibilidades de éxito para dejar de fumar.

  11. Tratamientos para dejar de fumar, disponibles en México

    Directory of Open Access Journals (Sweden)

    Raúl H Sansores

    2002-01-01

    Full Text Available Objetivo. Describir las estrategias terapéuticas disponibles para ayudar a los fumadores a dejar de fumar. Material y métodos. Estudio realizado en el Instituto Nacional de Enfermedades Respiratorias, México. Se hizo una revisión en Medline con el encabezado de meta-análisis y se consultó el Cochrane Library, de 1990 a 2001. Resultados. La farmacoterapia muestra una buena probabilidad promedio de éxito para dejar de fumar expresada como una relación entre el medicamento activo y el placebo (índice de 39, 78, 79, 117 y 119% para los chicles de nicotina, los parches de nicotina, el bupropión, el inhalador de nicotina y el spray nasal de nicotina, respectivamente. El éxito de la terapia conductual puede ser buena (RM=3.8, sin embargo, se requiere más investigación. Conclusiones. Se hace énfasis en la necesidad de combinar la terapia cognitivo-conductual con el uso de fármacos, así como la combinación de éstos entre sí para incrementar las posibilidades de éxito para dejar de fumar.Objective. To describe smoking cessation therapies available in Mexico. Material and Methods. Literature review of meta-analysis, controlled clinical trials, and behavioral therapy studies. Results. Smoking cessation pharmacotherapy interventions showed a good chance of success on average, expressed as the ratio of the active drug vs. placebo cessation therapy outcomes (ratios of 39, 78, 79, 117, and 119%, for nicotine chewing gum, bupropion, nicotine patch, inhaler, and nicotine nasal spray, respectively. Behavioral therapy showed satisfactory results, (OR= 3.8 however, more research is needed to establish its effectiveness. Conclusions. Emphasis is made on the need to combine behavioral therapy with pharmacotherapy, to increase the likelihood of successful smoking cessation.

  12. Non disponible

    OpenAIRE

    Thibert , Valérie

    2011-01-01

    An initial extraction procedure is usually needed for the trace analysis of biological fluids to reduce the amount of interfering compounds. Thus, solid phase extraction (SPE) is often applied before the separation, but its lack of selectivity can lead to the co-extraction of interfering compounds compromising the analysis. In order to increase the selectivity of the analysis, selective tools, based on molecular recognition, can be used such as immunosorbents, using antibodies, or molecularly...

  13. Non disponible

    OpenAIRE

    Zerrouki , Djamal

    2007-01-01

    Le travail de recherche exposé dans cette thèse, montre dans la premier partie la mise en oeuvre de la méthode d'émulsification pour la préparation de petits agrégats de forme anisotrope monodisperse et de forme géométrique bien définie et on a montré que la maîtrise des paramètres de la formulation permet la sélection et la production d'un maximum d'agrégats de formes données (dimère, trimère, tétramère). On a montré la faisabilité et la possibilité d'assembler tête-tête les différents types...

  14. Correlacion entre metodos de analisis de Zn disponible en cuatro ordenes de suelos de Costa Rica

    OpenAIRE

    Eloy Molina; Elemer Bornemisza

    2001-01-01

    Se realizo una comparación entre métodos analisis del Zn disponible en 4 ordenes de sue- Analytilos de Costa Rica (Ultisoles, Vertisoles, Andisoles Inceptisoles, 25 de c/u), utilizando las siguientes soluciones extractoras: Olsen Modificado, Meh- lich 3, Morgan Modificado, DTPA y HC1. Las cantidades de Zn extrafdas dependieron de la natu- raleza qufmica de la solucion extractora. El HCl presento los contenidos mas altos de Zn en los chasuelos, excepto en Vertisoles....

  15. Talco y carbonato básico de magnesio como aportantes de magnesio disponible al suelo

    Directory of Open Access Journals (Sweden)

    Carmen Rosa Goméz Laverde

    2009-07-01

    Full Text Available Mediante dos ensayos de laboratorio se realizó un estudio sobre la solubilización de carbonato básico de magnesio y de talco para juzgar estas fuentes como aportantes de magnesio disponible. Los minerales finamente molidos se aplicaron en dosis equivalente a 3,6 meq/100 g a muestras de tres suelos de pH diferente. En el ensayo I las muestras de suelo más la fuente de magnesio se Incubaron en recipientes cerrados, a 18

  16. Estudio sobre la pertinencia del uso de las normas disponibles del Raven en adultos mayores chilenos

    OpenAIRE

    Alarcón Paz,Cristina; Díaz Valenzuela,Vanessa; Hernández Rosales,Jacqueline; Estrada Goic,Claudia

    2012-01-01

    La evaluación de la inteligencia en población adulto mayor ha aumentado su relevancia debido al incremento de la esperanza de vida. Este estudio centra su interés en la pertinencia de normas disponibles para el Test de Matrices Progresivas de Raven para dicha población. Se utilizaron normas de Colchester (1942, en Raven, Court y Raven, 2008), las más completas existentes. Participaron 102 adultos mayores voluntarios (más de 60 años). El diseño fue no experimental transversal correlacional. Lo...

  17. Interpretation of Bioassay Data; Interpretation des Donnees de l'Analyse d'Echantillons Biologiques; Interpretatsiya dannykh biologicheskikh issledovanij; Interpretacion de Datos Obtenidos por Bioanalisis

    Energy Technology Data Exchange (ETDEWEB)

    Dolphin, G. W.; Jackson, S. [Health Physics and Medical Division, Atomic Energy Research Establishment, Harwell, Berkshire (United Kingdom)

    1964-10-15

    routine surveillance of a group of personnel. The data available about metabolism of the radionuclide are used to evaluate an investigation level, namely, the urinary excretion rate corresponding to a chosen level of body content. It is important that measurements for routine surveillance should be made with maximum accuracy and carer fully recorded. These measurements may be used much later in making an assessment of .the chronically- acquired body content. A summary is presented of the human data available on metabolism and urinary excretion of tritium, caesium, uranium, strontium, radium and plutonium. (author) [French] Afin d'evaluer la dose de rayonnements a l'organe critique due a la contamination interne par un radionucleide, il faut mesurer la quantite du radionucleide dans le corps. Quand le radionucleide emet des rayons gamma ou X, ou des rayonnements beta donnant.naissance a un rayonnement de freinage convenable, on peut proceder a-desmesures directes de la charge corporelle de ce radionucleide dans un anthroporadiametre, mais lorsque le radionucleide n'emet pas de rayonnements convenables, on est oblige d'evaluer la charge corporelle d'apres les mesures de la quantite du radionucleide contenue dans les excreta, le sang, l'haleine ou des tampons provenant du nez ou de la bouche. Certaines etudes ont ete faites sur l'elimination urinaire des radionucleides, consideree comme un indice de la contamination interne, et l'analyse de l'urine est la forme la plus repandue de l'analyse d'echantillons biologiques. Cependant, le caractere fragmentaire des donnees de reference dont on dispose sur le metabolisme des radionucleides constitue toujours une faiblesse tres grave et il faut faire d'urgence beaucoup de travaux de recherche dans ce domaine. Dans cette etude, on a classe les differents modes de metabolisme des divers radionucleides en trois grandes categories. Le premier groupe comprend les radionucleides repartis dans l'ensemble du corps de facon assez uniforme. Le

  18. Niveles de calcio y fósforo disponible en gallinas durante 48 semanas en postura

    Directory of Open Access Journals (Sweden)

    Diana Angélica Gutiérrez Arenas

    2013-01-01

    Full Text Available Se realizó un experimento para evaluar niveles de calcio (Ca y fósforo disponible (Pd en gallinas. Se utilizaron 300 gallinas Leghorn Hy-line W36 y se alimentaron con cinco tratamientos, tomando en cuenta los niveles óptimos de encontrados en la literatura. Las dietas fueron: T1, 4.34% Ca y 0.18% Pd; T2, 4.34% Ca y 0.23% Pd; T3, 4.62% Ca y 0.18% Pd; T4, 4.62% Ca y 0.23% Pd y T5, 3.25% Ca y 0.25% Pd. Se midió consumo de alimento, consumo de Ca y de Pd, conversión alimenticia, número de huevos, masa de huevo, peso del huevo, gravedad específica y porcentaje de cascarón. Para número de huevos, masa de huevo, consumo de alimento, conversión alimenticia y peso de huevo, no se encontraron diferencias entre tratamientos (P>0.05. Se observó mayor consumo de Ca (P<0.05 en las gallinas de los tratamientos T3 y T4 (4.80 y 4.81 g ave-1 día-1 ; en cuanto a consumo de fósforo disponible, las gallinas del T5 consumieron más (P<0.05 que las demás (0.258 g ave -1 día-1 . Para gravedad específica, hubo mejores resultados con T1, T3 y T4 (1.0837, 1.0841, y 1.0840; P<0.05. En porcentaje de cascarón se observaron mejores resultados con las gallinas de T1, T2, T3 y T4 (P<0.05. Se concluye que las concentraciones de Ca sugeridas por el NRC (1994, no son suficientes para máxima calidad del cascarón; sin embargo, los niveles de Pd 0.18 y 0.23% son menores a los sugeridos por el NRC, de 0.25%.

  19. Correlacion entre metodos de analisis de Zn disponible en cuatro ordenes de suelos de Costa Rica

    Directory of Open Access Journals (Sweden)

    Eloy Molina

    2001-01-01

    Full Text Available Se realizo una comparación entre métodos analisis del Zn disponible en 4 ordenes de sue- Analytilos de Costa Rica (Ultisoles, Vertisoles, Andisoles Inceptisoles, 25 de c/u, utilizando las siguientes soluciones extractoras: Olsen Modificado, Meh- lich 3, Morgan Modificado, DTPA y HC1. Las cantidades de Zn extrafdas dependieron de la natu- raleza qufmica de la solucion extractora. El HCl presento los contenidos mas altos de Zn en los chasuelos, excepto en Vertisoles. Las soluciones que hicontienen el agente quelante EDTA (Olsen Modi- ficado y Mehlich`3, extrajeron niveles interme- Modidios de Zn, en tanto que los metodos que contie- Den el quelato DTPA (Morgan Modificado y DT - PA, obtuvieron los valores mas bajos. Las corre- laciones de Zn extrafble entre los 5 metodos fue- signifirOD significativas en la mayona de los casos, tanto nivel de orden de suelos como en el conjunto de indivilos 100 suelos analizados. Los coeficientes de co- rrelacion mas altos, se presentaron entre Mehlich Morgan Modificado y DTPA. Las correlaciones Modifueron consistentes en los 4 ordenes, 10 que indica que estas soluciones poseen un amplio margen de adaptacion a diferentes tipos de suelo, siendo una caractenstica ventajosa para la selección de un metodo de analisis. El Olsen Modificado fue mas slighteficiente para la extraccion de Zn en suelos de pH ligeramente acido 0 neutro (Vertisoles e Inceptiso- les, que en suelos acidos (Ultisoles y Andisoles. EI HCI extrajo cantidades muy aItas de Zn que Moraparentementestan relacionadas con formas no disponibles para lag plantas. Se concluye que lag soluciones Mehlich 3, Morgan Modificado y DT - PA son semejantes en la forma de extraer Zn dispo- Dible, y podrian seT una altemativa para sustituir el metoda tradicional de Olsen Modificado utilizado en Costa Rica. Sin embargo,la eficiencia de ellas no puede seT establecida sino a traves de log estudios de correlacion contra rendimiento en invernadero y campo.

  20. CAPITALES HUMANO Y NATURAL DISPONIBLE EN LA MICROCUENCA DEL RÍO MEMBRILLO

    Directory of Open Access Journals (Sweden)

    Wendy Ximena Andrade Cedeño

    2012-06-01

    Full Text Available El trabajo se desarrolló con el objetivo de caracterizar el capital humano y natural en la microcuenca del río Membrillo y analizar la relación que existe con las estrategias de vida utilizadas. La metodología para el análisis de las variables e indicadores se basó en el enfoque de capitales de las comunidades, donde se asigna el mismo grado de importancia a cada uno de los indicadores para la generación de bienestar. Los resultados muestran en la tipificación de las familias tres grupos de hogares, que se diferencian en el uso del capital humano y natural, lo cual se relacionan con sus estrategias de vida. El grupo dos posee mayor disponibilidad de los capitales, se evidencia que el humano, es el factor que determina la cantidad y calidad de la mano de obra disponible. En el grupo uno, los dos capitales se encuentran menos fortalecidos, el capital humano está interactuando negativamente con el natural, cuestión que se relaciona con las estrategias de vida, formación, capacitación e intervención hacia los recursos naturales. El grupo tres, se encuentra en una situación intermedia; sus integrantes presentan una mayor variabilidad en el aprendizaje, se destaca la siembra de árboles para conservar el agua y dar sombra a los animales que explotan productivamente. Como resultado de este trabajo se prevé la urgencia de trabajar con el capital humano para fortalecer el capital natural y lograr un equilibro sostenible en el tiempo.

  1. RESEÑA DEL SOFTWARE DISPONIBLE EN COLOMBIA PARA LA GESTIÓN DE INVENTARIOS EN CADENAS DE ABASTECIMIENTO

    Directory of Open Access Journals (Sweden)

    VALENTINA GUTIÉRREZ

    2009-01-01

    Full Text Available La gestión de los diferentes tipos de inventario a lo largo de una cadena de abastecimiento es un problema complejo que, en la mayoría de los casos de la industria colombiana e internacional, se aborda mediante la implementación de herramientas de software. Sin embargo, la decisión de implementar dichas herramientas está en muchos casos limitada por la capacidad financiera para invertir en ellas y por el desconocimiento de la oferta de software disponible en Colombia. Este artículo presenta una reseña del software disponible en Colombia para la gestión de inventarios con el fin de brindar a las empresas que se enfrentan a la decisión de implementar un software, una herramienta de soporte que indique cuál es la oferta en Colombia y cuáles son las características de los sistemas disponibles. Para esto se presenta primero el estado del arte, en el cual se identifica el resultado de la revisión de la literatura y el uso de las herramientas de software en la industria colombiana. Seguidamente se presenta la caracterización de los productos de software disponibles en el país. Dicha caracterización permite identificar la configuración general de los productos, los módulos de gestión con los que cuenta, las opciones de integración con otras herramientas informáticas, y la información general de precios e instalación. Finalmente se presentan las conclusiones del estudio y las futuras oportunidades de investigación.

  2. Energy storage

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This chapter discusses the role that energy storage may have on the energy future of the US. The topics discussed in the chapter include historical aspects of energy storage, thermal energy storage including sensible heat storage, latent heat storage, thermochemical heat storage, and seasonal heat storage, electricity storage including batteries, pumped hydroelectric storage, compressed air energy storage, and superconducting magnetic energy storage, and production and combustion of hydrogen as an energy storage option

  3. Energy Storage.

    Science.gov (United States)

    Eaton, William W.

    Described are technological considerations affecting storage of energy, particularly electrical energy. The background and present status of energy storage by batteries, water storage, compressed air storage, flywheels, magnetic storage, hydrogen storage, and thermal storage are discussed followed by a review of development trends. Included are…

  4. SADE: system of acquisition of experimental data. Definition and analysis of an experiment description language; SADE: systeme d'acquisition de donnees experimentales. Definition et analyse d'un langage descripteur d'experience

    Energy Technology Data Exchange (ETDEWEB)

    Gagniere, Jean-Michel

    1983-06-10

    This research thesis presents a computer system for the acquisition of experimental data. It is aimed at acquiring, at processing and at storing information from particle detectors. The acquisition configuration is described by an experiment description language. The system comprises a lexical analyser, a syntactic analyser, a translator, and a data processing module. It also comprises a control language and a statistics management and plotting module. The translator builds up series of tables which allow, during an experiment, different sequences to be executed: experiment running, calculations to be performed on this data, building up of statistics. Short execution time and ease of use are always looked for [French] Cette these presente un systeme informatique d'acquisition de donnees experimentales, dit S.A.D.E. Ce systeme est destine a acquerir, a traiter et a stocker les informations en provenance de detecteurs de particules. La configuration d'acquisition est decrite par un langage descripteur d'experiences. Le systeme comporte un analyseur lexical, un analyseur syntaxique, un traducteur et un module de traitement des donnees. Le systeme comporte egalement un langage de commande et un module de gestion et trace de statistiques. Le traducteur construit des series de tables, qui permettent, lors du deroulement d'une experience, l'execution des differentes sequences: lecture des donnees, calculs a effectuer sur ces donnees, construction des statistiques. Tout au long de la realisation, deux objectifs fondamentaux sont consideres: recherche de la rapidite d'execution et facilite d'utilisation. (auteur)

  5. Geoscientific Data Acquisition and Management System (systeme d'Acquisition et de Gestion des Donnees, S.A.G.D.) of the Andra Meuse / Haute-Marne research center

    International Nuclear Information System (INIS)

    Tabani, P.; Hermand, G.; Delay, J.; Mangeot, A.

    2010-01-01

    Document available in extended abstract form only. ANDRA is directly responsible for all scientific data acquired in real time and wire-line at the Meuse Haute- Marne underground research laboratory. To fulfil the needs for the acquisition, storage and display of realtime data, Andra decided to develop and install a system called SAGD (Systeme d'Acquisition et de Gestion des Donnees). With this view, a system was designed to: - Determine the acquisition tools and methods so that technical failures would not result in the loss of data or the acquisition of erroneous data, - Store (conservation) in the long-term all data in a single place in a single form, - Allow the diffusion and free access of data to the large community of ANDRA researchers, partners and service contractors in a single fluid way whatever the source of the data. - Help external communication through a user friendly and easy to understand presentation of the recorded data. S.A.G.D fulfils these objectives by: - Making available in real time, and through a single system, all experimental data under acquisition at the MHM Center and Mont Terri laboratory, - Displaying the recorded data on temporal windows and specific time step, - Allowing remote control of the experimentations, - Ensuring the traceability of all recorded information, - Ensuring data storage in a data base. S.A.G.D has been deployed in the first experimental drift at -445 m in November 2004. It was subsequently extended to the underground Mont Terri laboratory in Switzerland in 2005 and to the entire surface logging network of the Meuse / Haute-Marne Center in 2008. The SAGD computer network is an autonomous network consisting of optical fiber links which transmits experimentation data to the servers and computers in the control room, whether they originate from the bottom of a borehole or surface level. A high speed link between Mont Terri and Bure allows remote control of all the experimentations and the centralization of all

  6. Non disponible / Not available

    OpenAIRE

    Joëlle , Linck

    2005-01-01

    We report the case of an important cholestatic hepatitis with prolonged cholestasis following two injections of gold salts. We discuss the links between this hepatisis and gold salts. In the context of a hypersensitivity reaction to gold salts, our patient developed other toxic reactions : hemolytic anemia, proeinuria, asepteic meningitis, pancreatitis, stomatitis, colitis, exanthema...We studied the mechanism of drug-induced hepatitis and more specifically gold-induced immuno-allergic reacti...

  7. Recursos disponibles para la protección de mujeres migrantes en tránsito por Tamaulipas

    Directory of Open Access Journals (Sweden)

    Rocío CÁRDENAS-RODRÍGUEZ

    2014-01-01

    Full Text Available La labor del gobierno mexicano en materia de política migratoria es una estrategia para administrar el flujo de migrantes en tránsito rumbo a Estados Unidos, no para salvaguardar su integridad y derechos, menos aún está diseñada para proteger a las mujeres. En esa medida, el interés de este artículo es hacer evidentes los escasos recursos de protección disponibles para migrantes y la ausencia de perspectiva de género en los recursos de apoyo para mujeres en tránsito por México. A través de entrevistas a autoridades y organismos sociales en la frontera de Tamaulipas y con base en el enfoque del modelo ecológico, se evaluaron los recursos de la política pública mexicana como elementos amortiguadores para los migrantes, frente a riesgos y elementos de vulnerabilidad de la mujer en tránsito.

  8. Sanitary impact of cleaning operations following the pollution bred by the Erika wreck: evaluation and prevention. Synthesis of available data and recommendations; Impact sanitaire des operations de nettoyage consecutives a la pollution engendree par le naufrage de l'Erika: evaluation et prevention. Synthese des donnees disponibles et recommandations

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-04-01

    The I.N.E.R.I.S. (Institut National de l'Environnement Industriel et des Risques) report relative to the consequences of cleaning operations following the pollution bred by the Erika wreck gives the following conclusions: whatever the pollutants are, the carcinogen risks by pulmonary way are negligible for people assigned to the beaches cleaning; the general carcinogen effects, linked to benzopyrene in organism after skin crossing, have been evaluated as negligible; there is a non negligible risk for the embryo-fetal development linked to the benzopyrene skin crossing; It is not possible to tell if the skin cancer risk is or not negligible, because of the uncertainty of the dose effectively absorbed by the skin and the lack of acceptable toxicological references; the risks linked to the volatile organic compounds are negligible; an uncertainty exists on the risks linked to the thiophene family that have not been determined, because of the deficiency of base data. For the second study, whatever the studied scenario, the R.I.V.M. (Riijksinstituut Voor Volksgezondheid en mileuhygiene) Dutch organism report concludes to a risk qualified as acceptable for the voluntary workers and professionals, included the birds cleaners. The risk of skin cancer consecutive to the skin exposure has been characterized with a dose response relationship model coming from previous works of the R.I.V.M. (N.C.)

  9. Directory of Factual and Numeric Databases of Relevance to Aerospace and Defence R and D (Repertoire de Bases de donnees Factuelles ou Numeriques d’interet pour la R and D).

    Science.gov (United States)

    1992-07-01

    Madrid Faculty of Science Institute of Materials Sciences (Instituto de Ciencia de Materiales Facultad de Ciencias, Universidad Autonoma de Madrid) ADDRESS...OF ORGANIZATION: Construcciones Aeronauticas SA CASA ADDRESS/POINT OF CONTACT: Attention: J. Pascual Laboratory Aeropuerto de San Pablo 41007 Sevilla...Factual and Numeric Databases of Relevance to Aerospace and Defence R & D (Repertoire de Bases de donnees Factuelles ou Num~riques d’inte’re^t pour

  10. Reseña del Software Disponible en Colombia Para la Gestión de Inventarios en Cadenas de Abastecimiento

    Directory of Open Access Journals (Sweden)

    Valentina Gutiérrez

    2009-01-01

    Full Text Available La gestión de los diferentes tipos de inventario a lo largo de una cadena de abastecimiento es un problema complejo que, en la mayoría de los casos de la industria colombiana e internacional, se aborda mediante la implementación de herramientas de software. Sin embargo, la decisión de implementar dichas herramientas está en muchos casos limitada por la capacidad financiera para invertir en ellas y por el desconocimiento de la oferta de software disponible en Colombia. Este artículo presenta una reseña del software disponible en Colombia para la gestión de inventarios con el fin de brindar a las empresas que se enfrentan a la decisión de implementar un software, una herramienta de soporte que indique cuál es la oferta en Colombia y cuáles son las características de los sistemas disponibles. Para esto se presenta primero el estado del arte, en el cual se identifica el resultado de la revisión de la literatura y el uso de las herramientas de software en la industria colombiana. Seguidamente se presenta la caracterización de los productos de software disponibles en el país. Dicha caracterización permite identificar la configuración general de los productos, los módulos de gestión con los que cuenta, las opciones de integración con otras herramientas informáticas, y la información general de precios e instalación. Finalmente se presentan las conclusiones del estudio y las futuras oportunidades de investigación.

  11. The energy in all states: data, constraints, stakes; L'energie sous toutes ses formes: donnees, contraintes, enjeux

    Energy Technology Data Exchange (ETDEWEB)

    Balian, R [Academie des Sciences, 92 - Gif sur Yvette (France); Combarnous, M [Bordeaux-1 Univ., LEPT-ENSAM, 33 - Talence (France); Lucas, J; Fauvarque, J F [Conservatoire National des Arts et Metiers (CNAM), 75 - Paris (France); Madet, D [Electricite de France (EDF), 75 - Paris (France); Bal, J L [Agence de l' Environnement et de la Maitrise de l' Energie, ADEME, 75 - Paris (France); Jourde, P [CEA Cadarache, GENEC, 13 - Saint-Paul-lez-Durance (France); Tissot, B [Commission Nationale d' Evaluation, 75 - Paris (France); Leconte, Ph [CEA Saclay, Dir. du Developpement et de l' Innovation Nucleares DDIN, 91 - Gif Sur Yvette (France); Doubre, H [Paris-11 Univ., IN2P3/CNRS, 91 - Orsay (France); Alleau, Th [Association Francaise de l' Hydrogene, AFH2, 75 - Paris (France); Durup, G [Mining Research Institute (United States); Le Treut, H [Ecole Nationale Superieure, 75 - Paris (France); Tubiana, M [Institut Gustave Roussy, 94 - Villejuif (France); [Centre Antoine Beclere, Paris (France); Masse, R [Office de Protection contre les Rayonnements Ionisants, 78 - le Vesinet (France); Lebot, B [Agence Internationale de l' Energie, 75 - Paris (France); Babusiaux, D [Institut Francais du Petrole (IFP), 92 - Rueil-Malmaison (France); Saab, A E [Electricite de France (EDF), 75 - Paris (France)

    2002-07-01

    This documents brings together papers presented at the physics summer school of august 2001 on the energy. The following topics are discussed: the constraints bound to the physics and the scales, the renewable energies, the future of the nuclear energy and the fossil energies, the energy storage problems, the environmental and sanitary aspects, the energy mastership and economy. (A.L.B.)

  12. The energy in all states: data, constraints, stakes; L'energie sous toutes ses formes: donnees, contraintes, enjeux

    Energy Technology Data Exchange (ETDEWEB)

    Balian, R. [Academie des Sciences, 92 - Gif sur Yvette (France); Combarnous, M. [Bordeaux-1 Univ., LEPT-ENSAM, 33 - Talence (France); Lucas, J.; Fauvarque, J.F. [Conservatoire National des Arts et Metiers (CNAM), 75 - Paris (France); Madet, D. [Electricite de France (EDF), 75 - Paris (France); Bal, J.L. [Agence de l' Environnement et de la Maitrise de l' Energie, ADEME, 75 - Paris (France); Jourde, P. [CEA Cadarache, GENEC, 13 - Saint-Paul-lez-Durance (France); Tissot, B. [Commission Nationale d' Evaluation, 75 - Paris (France); Leconte, Ph. [CEA Saclay, Dir. du Developpement et de l' Innovation Nucleares DDIN, 91 - Gif Sur Yvette (France); Doubre, H. [Paris-11 Univ., IN2P3/CNRS, 91 - Orsay (France); Alleau, Th. [Association Francaise de l' Hydrogene, AFH2, 75 - Paris (France); Durup, G. [Mining Research Institute (United States); Le Treut, H. [Ecole Nationale Superieure, 75 - Paris (France); Tubiana, M. [Institut Gustave Roussy, 94 - Villejuif (France)]|[Centre Antoine Beclere, Paris (France); Masse, R. [Office de Protection contre les Rayonnements Ionisants, 78 - le Vesinet (France); Lebot, B. [Agence Internationale de l' Energie, 75 - Paris (France); Babusiaux, D. [Institut Francais du Petrole (IFP), 92 - Rueil-Malmaison (France); Saab, A.E. [Electricite de France (EDF), 75 - Paris (France)

    2002-07-01

    This documents brings together papers presented at the physics summer school of august 2001 on the energy. The following topics are discussed: the constraints bound to the physics and the scales, the renewable energies, the future of the nuclear energy and the fossil energies, the energy storage problems, the environmental and sanitary aspects, the energy mastership and economy. (A.L.B.)

  13. Tritium storage

    International Nuclear Information System (INIS)

    Hircq, B.

    1990-01-01

    This document represents a synthesis relative to tritium storage. After indicating the main storage particularities as regards tritium, storages under gaseous and solid form are after examined before establishing choices as a function of the main criteria. Finally, tritium storage is discussed regarding tritium devices associated to Fusion Reactors and regarding smaller devices [fr

  14. Energy storage

    Science.gov (United States)

    Kaier, U.

    1981-04-01

    Developments in the area of energy storage are characterized, with respect to theory and laboratory, by an emergence of novel concepts and technologies for storing electric energy and heat. However, there are no new commercial devices on the market. New storage batteries as basis for a wider introduction of electric cars, and latent heat storage devices, as an aid for solar technology applications, with satisfactory performance standards are not yet commercially available. Devices for the intermediate storage of electric energy for solar electric-energy systems, and for satisfying peak-load current demands in the case of public utility companies are considered. In spite of many promising novel developments, there is yet no practical alternative to the lead-acid storage battery. Attention is given to central heat storage for systems transporting heat energy, small-scale heat storage installations, and large-scale technical energy-storage systems.

  15. Energy storage

    International Nuclear Information System (INIS)

    2012-01-01

    After having outlined the importance of energy storage in the present context, this document outlines that it is an answer to economic, environmental and technological issues. It proposes a brief overview of the various techniques of energy storage: under the form of chemical energy (hydrocarbons, biomass, hydrogen production), thermal energy (sensitive or latent heat storage), mechanical energy (potential energy by hydraulic or compressed air storage, kinetic energy with flywheels), electrochemical energy (in batteries), electric energy (super-capacitors, superconductor magnetic energy storage). Perspectives are briefly evoked

  16. ¿Es necesario disponer de ECMO para reparar cardiopatías congénitas de complejidad elevada? Nuestra experiencia en los últimos 6 años

    Directory of Open Access Journals (Sweden)

    Raúl Sánchez Pérez

    2017-01-01

    Conclusiones: Creemos que actualmente es necesario disponer de la ECMO en el postoperatorio de los pacientes intervenidos de cardiopatías congénitas, dado que parece asociarse a un beneficio en términos de supervivencia.

  17. Neutron storage

    International Nuclear Information System (INIS)

    Strelkov, A.V.

    2004-01-01

    The report is devoted to neutron storage (NS) and describes the history of experiments on the NS development. Great attention is paid to ultracold neutron (UCN) storage. The experiments on the UCN generation, transport, spectroscopy, storage and detection are described. Experiments on searching the UCN electric-dipole moment and electric charge are continued. Possible using of UCN for studying the nanoparticles is discussed [ru

  18. Energy storage

    International Nuclear Information System (INIS)

    Odru, P.

    2010-01-01

    This book proposes a broad overview of the technologies developed in the domains of on-board electricity storage (batteries, super-capacitors, flywheels), stationary storage (hydraulic dams, compressed air, batteries and hydrogen), and heat storage (sensible, latent and sorption) together with their relative efficiency, their expected developments and what advantages they can offer. Eminent specialists of this domain have participated to the redaction of this book, all being members of the Tuck's Foundation 'IDees' think tank. (J.S.)

  19. Energy storage

    CERN Document Server

    Brunet, Yves

    2013-01-01

    Energy storage examines different applications such as electric power generation, transmission and distribution systems, pulsed systems, transportation, buildings and mobile applications. For each of these applications, proper energy storage technologies are foreseen, with their advantages, disadvantages and limits. As electricity cannot be stored cheaply in large quantities, energy has to be stored in another form (chemical, thermal, electromagnetic, mechanical) and then converted back into electric power and/or energy using conversion systems. Most of the storage technologies are examined: b

  20. Tritium storage

    International Nuclear Information System (INIS)

    Hircq, B.

    1989-01-01

    A general synthesis about tritium storage is achieved in this paper and a particular attention is given to practical application in the Fusion Technology Program. Tritium, storage under gaseous form and solid form are discussed (characteristics, advantages, disadvantages and equipments). The way of tritium storage is then discussed and a choice established as a function of a logic which takes into account the main working parameters

  1. Servicios clínicos disponibles para niñas, niños y jóvenes con trastornos mentales en México

    Directory of Open Access Journals (Sweden)

    Gabriela Zamora-Carmona

    2013-01-01

    Full Text Available En el ámbito de la salud, el bienestar físico y mental debería ser una prioridad. No obstante, en México existen limitantes importantes en la atención a la salud mental, como el estigma social que prevalece hacia las enfermedades mentales, la discriminación y violación a los derechos humanos de las personas afectadas por estos trastornos, el limitado número de servicios clínicos a los que se puede acceder, la falta de servicios de salud especializados, y la tendencia de los gobiernos a omitir esta realidad. En el presente artículo de tipo descriptivo pretendo hacer una breve revisión de los servicios clínicos disponibles para niñas, niños y jóvenes mexicanos que padecen trastornos mentales.

  2. Servicios clínicos disponibles para niñas, niños y jóvenes con trastornos mentales en México

    Directory of Open Access Journals (Sweden)

    Gabriela Zamora-Carmona

    2013-03-01

    Full Text Available En el ámbito de la salud, el bienestar físico y mental debería ser una prioridad. No obstante, en México existen limitantes importantes en la atención a la salud mental, como el estigma social que prevalece hacia las enfermedades mentales, la discriminación y violación a los derechos humanos de las personas afectadas por estos trastornos, el limitado número de servicios clínicos a los que se puede acceder, la falta de servicios de salud especializados, y la tendencia de los gobiernos a omitir esta realidad. En el presente artículo de tipo descriptivo pretendo hacer una breve revisión de los servicios clínicos disponibles para niñas, niños y jóvenes mexicanos que padecen trastornos mentales.

  3. Probe Storage

    NARCIS (Netherlands)

    Gemelli, Marcellino; Abelmann, Leon; Engelen, Johannes Bernardus Charles; Khatib, M.G.; Koelmans, W.W.; Zaboronski, Olog; Campardo, Giovanni; Tiziani, Federico; Laculo, Massimo

    2011-01-01

    This chapter gives an overview of probe-based data storage research over the last three decades, encompassing all aspects of a probe recording system. Following the division found in all mechanically addressed storage systems, the different subsystems (media, read/write heads, positioning, data

  4. Energy storage

    Energy Technology Data Exchange (ETDEWEB)

    1962-07-01

    The papers on energy storage problems, given to the United Nations Conference on New Sources of Energy, Rome, 1961, are reviewed. Many aspects of the subject are discussed: comparisons between the costs of storing energy in batteries and in fuel cells; the use, efficiency and expected improvement of fuel cells; the principles involved in the chemical conversion of solar energy to chemical energy; the use of metal hydride fuel cells; the chemical conversion and storage of concentrated solar energy for which the solar furnace is used for photochemical reactions. Finally, the general costs of storing energy in any form and delivering it are analyzed with particular reference to storage batteries and fuel cells.

  5. Estudio sobre la pertinencia del uso de las normas disponibles del Raven en adultos mayores chilenos Estudo sobre a pertinência da utilização das normas disponíveis de Raven em idosos chilenos Study on the relevance of using available norms Raven in Chileans older adults

    OpenAIRE

    Cristina Alarcón Paz; Vanessa Díaz Valenzuela; Jacqueline Hernández Rosales; Claudia Estrada Goic

    2012-01-01

    La evaluación de la inteligencia en población adulto mayor ha aumentado su relevancia debido al incremento de la esperanza de vida. Este estudio centra su interés en la pertinencia de normas disponibles para el Test de Matrices Progresivas de Raven para dicha población. Se utilizaron normas de Colchester (1942, en Raven, Court y Raven, 2008), las más completas existentes. Participaron 102 adultos mayores voluntarios (más de 60 años). El diseño fue no experimental transversal correlacional. Lo...

  6. Variação do volume de gotas de colírios lubrificantes disponíveis no mercado brasileiro

    Directory of Open Access Journals (Sweden)

    Vitorugo Silvestre Nascimento

    Full Text Available RESUMO Objetivo: Avaliar a variação intra e interexaminadores do volume de gotas dispensados de frascos de colírios lubrificantes disponíveis no mercado. Métodos: Foram estudados cinco frascos de colírios lubrificantes e dezenove voluntários participaram deste estudo. A massa média de gotas de 20µl dos colírios foi obtida utilizando micropipeta e balança de precisão e como padrão para comparação com a massa das gotas obtidas pelos voluntários. Cinco gotas de cada frasco foram pesadas individualmente com o tubo de colírio perpendicular à balança, usando o primeiro e segundo dedos da mão direita, de forma que a pressão fosse aplicada somente no meio do frasco. Os experimentos foram realizados em uma sala climatizada a temperatura ambiente (21±1°C. Resultados: Todos os frascos de colírios apresentaram variação estatisticamente significante das massas das gotas obtidas pelos examinadores quando comparadas com a massa média padrão de 0,0182±0,0014g, com exceção da comparação entre os dados do colírio A com o colírio D, que não apresentou variação estatisticamente significante. Conclusão: O presente estudo demonstra a ausência de uniformidade das gotas dispensadas pelos frascos de colírios disponíveis no mercado e a sua inadequação à real necessidade, uma vez que as gotas dispensadas são maiores do que o indicado. Esse fato torna-se um problema quando se trata de período de tratamento prolongado, especialmente com colírios dispendiosos como os indicados para a terapêutica do glaucoma. Nesse sentido, a padronização das gotas de colírios se faz necessária.

  7. Integral physics data for fast-reactor design; Donnees de physique integrale intervenant dans les etudes de reacteur a neutrons rapides; Integral'nye fizicheskie dannye dlya raschetov reaktorov na bystrykh nejtronakh; Datos fisicos integrales para el diseno de reactores rapidos

    Energy Technology Data Exchange (ETDEWEB)

    Loewenstein, W B; Meneghetti, D [Argonne National Laboratory, Argonne, IL (United States)

    1962-03-15

    systems. (author) [French] La compilation recente du chapitre sur la physique des reacteurs a neutrons rapides dans la preparation de la deuxieme edition de 'Reactor Physics Constants' a entraine une recapitulation des resultats disponibles des mesures experimentales globales. Le choix des donnees integrales connues relatives a la physique des reacteurs a neutrons rapides a faire figurer dans cette compilation a ete fait en fonction de deux criteres : a) informations recueillies a partir de reacteurs relativement simples et qui se pretent a des analyses theoriques simples, et b) informations recueillies a partir de reacteurs complexes, representant des prototypes ou des maquettes, et qui offrent un interet general pour les reacteurs de puissance a neutrons rapides. Le premier critere a pour objet de donner une enumeration des informations concernant les systemes les plus couramment utilises pour verifier les parametres des sections efficaces et les methodes de calcul. Le deuxieme critere est fonde sur la representation des informations courantes concernant les reacteurs a surgeneration, a neutrons rapides, existant. Ces informations sont trop compliquees pour qu'il soit possible de proceder a leur egard a des analyses theoriques simples. Elles prouvent la complexite du reacteur reel, par rapport a l'experience critique plus schematique et plus facile a analyser. Les donnees integrales intervenant dans les calculs de reacteurs sont les resultats des mesures faites, sur des types de reacteurs critiques ou non, des diverses grandeurs de la physique des reacteurs qui presentent un interet pratique et/ou theorique. Elles caracterisent le type de reacteur et aident a sa comprehension. Les mesures portent sur la masse critique, le facteur forme du coeur, les pourcentages de detection, les spectres des neutrons, les experiences de substitution de materiaux, le gain reflecteur, le temps de vie des neutrons, l'{alpha} de Rossi et sur d'autres grandeurs similaires. Les auteurs

  8. La variable ‘nivel de español’ en el léxico disponible de los estudiantes de español como lengua extranjera.

    Directory of Open Access Journals (Sweden)

    Marta Sánchez-Saus Laserna

    2010-12-01

    Full Text Available Normal 0 21 false false false ES X-NONE X-NONE MicrosoftInternetExplorer4 Son ya muy numerosos los estudios de disponibilidad léxica realizados sobre la lengua materna de una comunidad. Sin embargo, su aplicación a la enseñanza de lenguas extranjeras apenas se ha investigado. Este artículo, fruto de una investigación en la que se ha estudiado el léxico disponible de los estudiantes de español como lengua extranjera de la Universidad de Cádiz y los factores que le influyen, analiza el efecto del nivel de español sobre el número de unidades léxicas que se han actualizado en las encuestas de disponibilidad. Además, hace especial hincapié en la importancia de que se lleve a cabo, no solo un análisis estadístico descriptivo de los resultados, sino también inductivo, el cual permite extrapolarlos a la totalidad del grupo de estudiantes que es objeto del estudio.

  9. Recursos bibliográficos disponibles en Internet sobre sustancias y residuos peligrosos y su influencia en el medio ambiente en el periodo 1975 a 2005

    Directory of Open Access Journals (Sweden)

    Javier Sanz-Valero

    2008-06-01

    Full Text Available Introducción. Internet se ha convertido en una fuente de información biomédica cada vez más utilizada. La documentación producida por las instituciones públicas y privadas, en relación con las sustancias peligrosas que se pueden recuperar en Internet, es fundamental para la prevención de este tipo de riesgos.Objetivo. Localizar y revisar los documentos disponibles en Internet sobre sustancias peligrosas, residuos peligrosos, incluyendo inertes, y su influencia en el medio ambiente en el periodo 1975 a 2005. Material y método. Estudio descriptivo transversal de los resultados de las búsquedas bibliográficas efectuadas en Internet, en las correspondientes bases de datos. Resultados. Se han reconocido 162 registros que cumplen con los requisitos señalados en la metodología preestablecida. Discusión. Con respecto a la documentación medioambiental pre- sente en Internet, parece conveniente incrementar su difusión y mejorar su clasificación y accesibilidad.

  10. CALCULANDO EL NIVEL DE RECURSOS DISPONIBLES A PARTIR DEL REGISTRO FUNERARIO MESOAMERICANO (Calculating the Available Resource Level from the Mesoamerican Mortuary Record

    Directory of Open Access Journals (Sweden)

    Pascual Izquierdo-Egea

    2016-03-01

    Full Text Available El cálculo del nivel de recursos disponibles a partir del registro funerario no solo es posible sino que arroja resultados espectaculares que aclaran cuestiones tan fundamentales como la naturaleza del cambio demográfico. Constituye un nuevo logro relevante de la arqueología de los fenómenos sociales como disciplina verdaderamente científica. Su aplicación a la Mesoamérica prehispánica confirma la coincidencia entre los resultados obtenidos para este nuevo parámetro en las tierras bajas mayas y los de la cuenca del río Balsas (México durante el Clásico Tardío. ENGLISH: The calculation of the availability of resources from the mortuary record is possible and yields dramatic results that clarify fundamental questions such as the nature of demographic change. It is a new and important achievement of the archaeology of social phenomena as a truly scientific discipline. Its application to prehispanic Mesoamerica confirms the similarity of the results obtained in the Mayan lowlands and those from the Balsas river basin in Mexico during the Late Classic.

  11. DONNEES PRELIMINAIRES SUR LES HABITUDES ...

    African Journals Online (AJOL)

    Administrateur

    Le régime alimentaire des chauves-souris paillées, Eidolon helvum (Kerr, 1792) de la commune du Plateau à Abidjan, Côte d'Ivoire a été étudié d'août 2007 à juillet 2008, en vue de connaître sa composition et de déterminer la préférence alimentaire de ces animaux, ainsi que les variations saisonnières. Les résultats.

  12. Energy Storage

    CSIR Research Space (South Africa)

    Bladergroen, B

    2015-10-01

    Full Text Available In commercial arena, the most recent developments in EES are in electrochemical storage, singling out Li-ion batteries and Vanadium Redox flow batteries, while power-to-gas/-fuels (electrolysis of water into hydrogen and subsequent methanisation...

  13. Liver Storage

    African Journals Online (AJOL)

    1971-10-23

    Oct 23, 1971 ... The need for whole-organ preservation has become in- cre.asingly important ... ideally fulfil the same purpose as the circulation of blood through the body, ... Hepatic hypothermia produced by the introduction of cold electrolyte ... Recently, we reported successful hypothermic immersion storage for up to 8 ...

  14. Dry storage

    International Nuclear Information System (INIS)

    Arnott, Don.

    1985-01-01

    The environmental movement has consistently argued against disposal of nuclear waste. Reasons include its irretrievability in the event of leakage, the implication that reprocessing will continue and the legitimacy attached to an expanding nuclear programme. But there is an alternative. The author here sets out the background and a possible future direction of a campaign based on a call for dry storage. (author)

  15. Storage Rings

    International Nuclear Information System (INIS)

    Fischer, W.

    2010-01-01

    Storage rings are circular machines that store particle beams at a constant energy. Beams are stored in rings without acceleration for a number of reasons (Tab. 1). Storage rings are used in high-energy, nuclear, atomic, and molecular physics, as well as for experiments in chemistry, material and life sciences. Parameters for storage rings such as particle species, energy, beam intensity, beam size, and store time vary widely depending on the application. The beam must be injected into a storage ring but may not be extracted (Fig. 1). Accelerator rings such as synchrotrons are used as storage rings before and after acceleration. Particles stored in rings include electrons and positrons; muons; protons and anti-protons; neutrons; light and heavy, positive and negative, atomic ions of various charge states; molecular and cluster ions, and neutral polar molecules. Spin polarized beams of electrons, positrons, and protons were stored. The kinetic energy of the stored particles ranges from 10 -6 eV to 3.5 x 10 12 eV (LHC, 7 x 10 12 eV planned), the number of stored particles from one (ESR) to 1015 (ISR). To store beam in rings requires bending (dipoles) and transverse focusing (quadrupoles). Higher order multipoles are used to correct chromatic aberrations, to suppress instabilities, and to compensate for nonlinear field errors of dipoles and quadrupoles. Magnetic multipole functions can be combined in magnets. Beams are stored bunched with radio frequency systems, and unbunched. The magnetic lattice and radio frequency system are designed to ensure the stability of transverse and longitudinal motion. New technologies allow for better storage rings. With strong focusing the beam pipe dimensions became much smaller than previously possible. For a given circumference superconducting magnets make higher energies possible, and superconducting radio frequency systems allow for efficient replenishment of synchrotron radiation losses of large current electron or positron beams

  16. La prevención primaria con aspirina de enfermedades cardiovasculares en personas diabéticas. Revisión de las pruebas disponibles

    Directory of Open Access Journals (Sweden)

    Carmen Maciá Bobes

    2006-01-01

    Full Text Available El beneficio del tratamiento con aspirina en la reducción del riesgo de infarto de miocardio, accidente vascular cerebral y muerte de origen vascular, está bien documentado en personas con enfermedad cardiovascular previa, incluido el subgrupo portador de una diabetes mellitus. Sin embargo el papel de la aspirina en prevención primaria es menos claro y objeto de discusión: los resultados de los ensayos clínicos disponibles no son consistentes, aunque los meta-análisis son favorables en algunos aspectos. Parece existir una disparidad entre el tipo de beneficio (cuando se observa y el sexo. Y en particular los resultados son contradictorios en personas diabéticas, las cuales representan un pequeño porcentaje de la muestra de población incluida en los estudios. A pesar de esto, la American Diabetes Association desde 1997, y otras sociedades científicas (incluidas varias españolas desde tiempos más recientes, recomiendan el uso de aspirina a dosis bajas en prevención primaria en todo paciente diabético mayor de 40 años, tipo 1 o tipo 2; y en todos los menores de 40 y mayores de 21 años que presenten otro factor de riesgo cardiovascular, además de la diabetes (antecedentes familiares de enfermedad vascular, hipertensión arterial, tabaquismo, dislipidemia o albuminuria. En este trabajo se revisan los resultados de los ensayos clínicos randomizados y controlados sobre la prevención cardiovascular primaria con aspirina, en los que se podrían apoyar las directrices oficiales de la American Diabetes Association, y se llega a la conclusión de que no existen actualmente pruebas científicas suficientes para sostenerlas.

  17. Conhecimento e atitude de usuários do SUS sobre o HPV e as vacinas disponíveis no Brasil

    Directory of Open Access Journals (Sweden)

    Maria José Duarte Osis

    2014-02-01

    Full Text Available OBJETIVO : Analisar o conhecimento de homens e mulheres acerca do HPV e das vacinas e sua intenção de serem vacinados e de vacinarem seus filhos adolescentes. MÉTODOS : Estudo descritivo, de corte transversal, com 286 mulheres (18 a 49 anos e 252 homens (18 a 60 anos, usuários de cinco unidades básicas de saúde e duas policlínicas do Sistema Único de Saúde, em Campinas, SP, em 2011. Foi realizada entrevista estruturada. Realizou-se análise bivariada e regressão de Poisson para identificar variáveis associadas ao conhecimento sobre HPV e vacinas e à intenção de vacinação. RESULTADOS : Quase 40,0% dos entrevistados referiram ter ouvido falar do HPV e 28,9% mencionaram informações adequadas; a principal fonte de informação foi a mídia (41,7%; 8,6% tinham ouvido falar das vacinas. Depois de informados da existência das vacinas, cerca de 94,0% dos participantes disseram que se vacinariam e/ou vacinariam filhos adolescentes se as vacinas estivessem disponíveis na rede pública de saúde. Escolaridade > 8 anos e ser do sexo feminino estiveram independentemente associados a ter ouvido falar do HPV e das vacinas e a ter conhecimento adequado sobre o vírus. Maior idade associou-se a ter ouvido falar das vacinas. Não houve variáveis associadas à intenção de vacinação. CONCLUSÕES : Os resultados reforçam a necessidade de haver intervenções educativas na população para prover informação adequada sobre o HPV e sobre medidas de prevenção.

  18. Underground Storage Tanks - Storage Tank Locations

    Data.gov (United States)

    NSGIC Education | GIS Inventory — A Storage Tank Location is a DEP primary facility type, and its sole sub-facility is the storage tank itself. Storage tanks are aboveground or underground, and are...

  19. Caracterización morfológica y contenido de almidón resistente y disponible en bananos (Musa sapientum exportables del Ecuador

    Directory of Open Access Journals (Sweden)

    Edison Omar Martínez-Mora

    2015-10-01

    Full Text Available Introducción: La investigación tuvo como objetivo fundamental, la caracterización morfológica del almidón nativo de banano (Musa sapientum, contenido en almidón resistente (AR y disponible (AD, de las variedades de banano de exportación: Cavendish (AC, Filipino (AF, Orito (AO y Valery (AV.Material y Métodos: Se determinó tamaño y forma del gránulo de almidón a través de microscopia electrónica de barrido. La cuantificación del AR por medición de su fracción no hidrolizada, luego de un ataque de pepsina, y para la fracción del AD un ataque de amilasa pancreática a la fracción no hidrolizada. Se midió la absorbancia de las dos soluciones de AR y AD a 510nm contra el blanco del reactivo.Resultados: El tamaño de los gránulos de almidón de: AF, AV y AC fueron en promedio 28μm y para el AO, de 35μm aproximadamente. La forma que predominó fue la oval esférica. El contenido de AR y AD estuvo en el rango de 49 a 58,5% y de 41 a 50%, respectivamente.Conclusiones: El almidón resistente, análogo de la fibra y útil en la nutrición humana, se presentó en valores importantes en las muestras de las diferentes variedades de banano exportable del Ecuador, alrededor del 54%. Según los resultados, el almidón de banano de las variedades estudiadas puede ser incorporado en la elaboración de alimentos que demanden características funcionales, principalmente por su alto contenido en almidón resistente.

  20. Diseño en ingeniería orientada a la capacidad tecnológica disponible; Engineering Design to the Available Technological Capacity Oriented

    Directory of Open Access Journals (Sweden)

    Genovevo F Morejón Vizcaíno

    2011-02-01

    Full Text Available Se presentan algunos de los resultados de la tesis doctoral: "Primera etapa del proceso de desarrollo de unhidromotor de alto par: Conceptualización y prototipo analítico". Se analiza un nuevo enfoque de diseño deingeniería con gran interés para los países que poseen una baja capacidad tecnológica en su industriametalmecánica, denominado: Desarrollo de nuevos productos orientado a la capacidad tecnológica disponible.La característica distintiva de esta metodología es el empleo de la capacidad tecnológica contenida en losproductos normalizados para diseñar otros con el objetivo de satisfacer necesidades sociales. Asimismo, sepropone una aplicación sobre el desarrollo de un nuevo tipo de hidromotor de pistones radiales llamado,hidromotor con cilindros tubulares radiales. (HCTR, el cual posee prestaciones competitivas y puede serconstruido por los países del tercer mundo. El objetivo de este trabajo no es dar una explicación pormenorizadade la metodología, sino mostrar su existencia y la gran utilidad que esta posee.  This paper presents the work of a doctoral thesis on "First stage of the process of development of a hydro-motor of high torque: conceptualisation and analytic prototype". A new focus of design is discussed. It isconvenient for the countries that possess a low technological capacity in industry. This new focus was nominatedas the process of development of new products guided to the available technological capacity, and theirdistinctive characteristic is that it uses the technological capacity contained in the products normalised todesign products to satisfy social necessities, that in another way they are impossible to design for theirelaboration demands. In an application of this procedure, a new type of hydro-motor of radial pistons wasobtained with competitive benefits that it can be built by the countries of the third world. The objective of thispaper is not to give an itemised explanation of the methodology

  1. Avicultura Industrial: Novos Conceitos de Materiais, Concepções e Técnicas Construtivas Disponíveis para Galpões Avícolas Brasileiros

    Directory of Open Access Journals (Sweden)

    Tinôco IFF

    2001-01-01

    Full Text Available Ao grande crescimento das fronteiras mercadológicas e ao extraordinário progresso científico verificado na avicultura industrial, contrapõe-se a pouca atenção que se deu, até recentemente, às técnicas de alojamento e, efetivamente, ao ambiente de criação das aves. Somente há questão de sete anos, com a perspectiva do processo de globalização que hoje movimenta a economia mundial, essa indústria passou a buscar, nas instalações e no ambiente, as possibilidades de melhoria no desempenho avícola e a redução dos custos de produção como forma de manter a competitividade. A produç��o de aves em alta densidade passou a ser imperativa e, dessa forma, a exigência de conforto térmico ambiental, que já havia crescido muito com o aumento da precocidade das aves, tornou-se ainda maior, como conseqüência da elevação da densidade de alojamento. Assim, para se manter competitiva, a indústria avícola brasileira está tendo de evoluir, rapidamente, de uma situação de quase indiferença aos princípios do acondicionamento térmico ambiente, para uma situação em que cada empresa ou integração deve tomar decisões relativas à adoção de concepções arquitetônicas e manejos inovadores, associados a sistemas de acondicionamento térmico naturais e artificiais, compatíveis com a sua realidade. Essas decisões incluem a readequação dos galpões já existentes e a concepção de novas unidades. Seguramente, estamos vivendo o momento de mais intensas transformações dos alojamentos avícolas brasileiros até então presenciado. Do exposto, esse trabalho busca abordar o planejamento, a concepção arquitetônica e os diferentes materiais e técnicas construtivas disponíveis para a indústria avícola brasileira no que diz respeito aos galpões de alojamentos das aves, visando propiciar um melhor acondicionamento térmico ambiente, compatível com as diferentes regiões climáticas brasileiras.

  2. Fuel storage

    International Nuclear Information System (INIS)

    Palacios, C.; Alvarez-Miranda, A.

    2009-01-01

    ENSA is a well known manufacturer of multi-system primary components for the nuclear industry and is totally prepared to satisfy future market requirements in this industry. At the same time that ENSA has been gaining a reputation world wider for the supply of primary components, has been strengthening its commitment and experience in supplying spent fuel components, either pool racks or storage and transportation casks, and offers not only fabrication but also design capabilities for its products. ENSA has supplied Spent Fuel Pool Racks, in spain, Finland, Taiwan, Korea, China, and currently it is in the process of licensing its own rack design in the United States of America for the ESBWR along with Ge-Hitachi. ENSA has supplied racks for 20 pools and 22 different reactors and it has also manufactured racks under all available technologies and developed a design known as Interlock Cell Matrix whose main features are outlined in this article. Another ENSA achievement in rack technology is the use of remote control for re-racking activities instead of using divers, which improves the ALARA requirements. Regarding casks for storage and transportation, ENSA also has al leading worldwide position, with exports prevailing over the Spanish market where ENSA has supplied 16 storage and transportation casks to the Spanish nuclear power Trillo. In some cases, ENSA acts as subcontractor for other clients. Foreign markets are still a major challenge for ENSA. ENSA-is well known for its manufacturing capabilities in the nuclear industry, but has been always involved in design activities through its engineering division, which carries out different tasks: components Design; Tooling Design; Engineering and Documentation; Project Engineering; Calculations, Design and Development Engineering. (Author)

  3. Underground storage

    Energy Technology Data Exchange (ETDEWEB)

    1965-06-10

    A procedure is described for making an underground storage cavity in a soluble formation. Two holes are drilled, and fluid is pumped into the first hole. This fluid is a non-solute for the formation material. Then pressure is applied to the fluid until the formation is fractured in the direction of the second hole. More non-solute fluid is injected to complete the fracture between the 2 holes. A solute fluid is then circulated between the 2 holes, which results in removal of that part of the formation next to the fracture and the forming of a chamber.

  4. Pumped storage

    International Nuclear Information System (INIS)

    Strauss, P.L.

    1991-01-01

    The privately financed 1,000 MW Rocky Point Pumped Storage Project located in central Colorado, USA, will be one of the world's highest head, 2,350 feet reversible pump/turbine projects. The project will offer an economical supply of peaking power and spinning reserve power to Colorado and other southwestern states. This paper describes how the project will be made compatible with the environmental conditions in the project area and the type of terrestrial mitigation measures that are being proposed for those situations where the project impacts the environment, either temporarily or permanently

  5. Regulations concerning radiation protection and survey; Donnees de la surveillance et regles qui en resultent en matiere de protection contre les rayonnements

    Energy Technology Data Exchange (ETDEWEB)

    Duhamel,; Lavie,; Fitoussi, [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1958-07-01

    will only be considered with regard to recuperation of uranium after simple machining. (author) [French] 1. L'utilisation croissante de l'energie nucleaire sous toutes ses formes a des fins pacifiques pose des problemes de securite vis-a-vis des travailleurs, des populations et des sites en general. Une etude comparee des risques d'irradiation auxquels le personnel du Commissariat a l'Energie atomique (CEA) a ete expose au cours de l'annee 1957 et des resultats du controle des radiations par les moyens de detection collectifs ou individuels montre que les installations du CEA ont une influence negligeable sur la sante, en raison de la surveillance exercee. 2. Cependant, quelques incidents de contamination et d'irradiation - sommairement indiques ainsi que la maniere dont ils ont ete regles - rendent necessaire l'elaboration d'une reglementation precise definissant les responsabilites respectives, au sein d'un etablissement nucleaire, des services utilisateurs et du Service charge de la Protection contre les Radiations, en matiere de prevention de la contamination. 3. Un ensemble coherent de regles pratiques de prevention et de protection relatives a la detention, la manipulation, le transport et le stockage de sources radioactives scellees ou non scellees, est presente. A cette fin, a partir des recommandations de la Commission Internationale de Protection Radiologique et compte tenu: - de leur nocivite radioactive; de leur activite specifique par unite de masse et du risque de contamination; les radioelements ont ete classes suivant le danger qu'ils presentent par rapport au plutonium. 4. Le Service charge de la Protection contre les Radiations intervient comme conseiller des la conception des laboratoires specialises et veille ensuite a ce que les prescriptions reglementaires de securite soient observees. 5. Des donnees elaborees, indispensables a la protection contre les rayonnements, sont mises a la disposition des utilisateurs en particulier: - table des radio

  6. Linear study and bundle adjustment data fusion; Application to vision localization; Recherche lineaire et fusion de donnees par ajustement de faisceaux; Application a la localisation par vision

    Energy Technology Data Exchange (ETDEWEB)

    Michot, J.

    2010-12-09

    integrate this additional information directly into an extended bundle adjustment, by adding a constraint term in the weighted cost function. We evaluate three methods (based on machine learning or regularization) that dynamically select the weight associated to the constraint and show that these methods can be used in a real time multi-sensor SLAM, and validate them with different types of constraint on the orientation or on the scale. Experiments conducted on real video sequences show that this technique of constrained bundle adjustment reduces the drifts observed with the classical vision algorithms and improves the global accuracy of the positioning system. (author) [French] Les travaux presentes dans ce manuscrit concernent le domaine de la localisation et la reconstruction 3D par vision artificielle. Dans ce contexte, la trajectoire d'une camera et la structure 3D de la scene filmee sont initialement estimees par des algorithmes lineaires puis optimisees par un algorithme non-lineaire, l'ajustement de faisceaux. Cette these presente tout d'abord une technique de recherche de l'amplitude de deplacement (recherche lineaire), ou line search pour les algorithmes de minimisation iterative. La technique proposee est non iterative et peut etre rapidement implantee dans un ajustement de faisceaux traditionnel. Cette technique appelee recherche lineaire algebrique globale (G-ALS), ainsi que sa variante a deux dimensions (Two way-ALS), accelerent la convergence de l'algorithme d'ajustement de faisceaux. L'approximation de l'erreur de reprojection par une distance algebrique rend possible le calcul analytique d'une amplitude de deplacement efficace (ou de deux pour la variante Two way-ALS), par la resolution d'un polynome de degre 3 (G-ALS) ou 5 (Two way-ALS). Nos experimentations sur des donnees simulees et reelles montrent que cette amplitude, optimale en distance algebrique, est performante en distance euclidienne, et permet

  7. Estudio sobre la pertinencia del uso de las normas disponibles del Raven en adultos mayores chilenos Estudo sobre a pertinência da utilização das normas disponíveis de Raven em idosos chilenos Study on the relevance of using available norms Raven in Chileans older adults

    Directory of Open Access Journals (Sweden)

    Cristina Alarcón Paz

    2012-12-01

    Full Text Available La evaluación de la inteligencia en población adulto mayor ha aumentado su relevancia debido al incremento de la esperanza de vida. Este estudio centra su interés en la pertinencia de normas disponibles para el Test de Matrices Progresivas de Raven para dicha población. Se utilizaron normas de Colchester (1942, en Raven, Court y Raven, 2008, las más completas existentes. Participaron 102 adultos mayores voluntarios (más de 60 años. El diseño fue no experimental transversal correlacional. Los resultados indican que las normas resultan poco exigentes para ese grupo y que existen diferencias significativas entre los adultos de la tercera y cuarta edad, privilegiando a los del primer grupo. El índice de discrepancia mostró alta sensibilidad, indicando que la distribución de puntajes esperados no se corresponde al de la población general. Se discuten los resultados en torno a la necesidad de actualización de las normas y la consideración de las nuevas características de este periodo vital.A avaliação da inteligência na população idosa tem aumentado sua importância devido ao aumento da expectativa de vida. Este estudo está centrado na relevância das normas disponíveis para o teste de Matrizes Progressivas de Raven para essa população. Foram utilizadas as normas de Colchester (1942, citado por Raven, Court y Raven, 2008, as mais completas disponíveis. Participaram 102 idosos voluntários (com idade superior a 60 anos. O desenho do estudo foi não experimental transversal correlacional. Os resultados indicam que as normas são pouco exigentes para esse grupo e que existem diferenças significativas entre os adultos da terceira e quarta idade, privilegiando o primeiro grupo. O índice de discrepância mostrou alta sensibilidade, indicando que a distribuição de pontuações esperadas não corresponde a da população em geral. Os resultados são discutidos em relação à necessidade de atualização das normas e da considera

  8. Quantificação do fósforo disponível por extrações sucessivas com diferentes extratores em Latossolo Vermelho distroférrico

    OpenAIRE

    Gatiboni, L. C.; Kaminski, J.; Rheinheimer, D. S.; Saggin, A.

    2002-01-01

    A determinação do fósforo potencialmente disponível por meio dos extratores químicos é dificultada em solos de carga variável, uma vez que existem diversos graus de energia de ligação com os colóides. O objetivo do presente trabalho foi avaliar o número mínimo de extrações sucessivas necessárias para estimar o fósforo potencialmente disponível, com os métodos de Mehlich-1 e Mehlich-3 e resina de troca aniônica (RTA). Foram realizadas treze extrações sucessivas com os três métodos em amostras ...

  9. Gas storage materials, including hydrogen storage materials

    Science.gov (United States)

    Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

    2013-02-19

    A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

  10. Exigência de fósforo disponível para tilápia-do-nilo (35 a 100 g Available phosphorus requirement of Nile tilapia (35 to 100 g

    Directory of Open Access Journals (Sweden)

    Wilson Massamitu Furuya

    2008-06-01

    Full Text Available Objetivou-se determinar a exigência de fósforo disponível para tilápias-do-nilo. Utilizaram-se 144 peixes com peso vivo inicial de 35,33 ± 0,66 g, distribuídos em delineamento de blocos ao acaso, com quatro tratamentos e três repetições. Foram fornecidas dietas com 29,0% PB, 2.980 kcal/kg de energia digestível (ED e quatro níveis de fósforo disponível (0,25; 0,35; 0,45 ou 0,55%, obtidos pela utilização de fosfato bicálcico como fonte de fósforo. As dietas foram fornecidas aos peixes três vezes por dia, até aparente saciedade, durante 46 dias. Não foi observado efeito dos níveis de fósforo disponível na dieta sobre o índice hepatossomático, a taxa de sobrevivência e os teores de água e proteína bruta na carcaça. O aumento dos níveis de fósforo disponível na dieta promoveu aumento linear do ganho de peso médio, da excreção de fósforo e dos teores de cinza na carcaça e de cinzas, cálcio e fósforo nos ossos. Houve efeito quadrático dos níveis de fósforo disponível sobre o consumo de ração, a conversão alimentar e a taxa de eficiência protéica, que foram melhores nos níveis 0,37; 0,48 e 0,48% de fósforo disponível, respectivamente. A exigência de fósforo disponível para tilápia-do-nilo de 35 a 100 g é de 0,48% (0,53% na matéria seca.The objective of this work was to determine the available phosphorus requirement of Nile tilapia. A total of 144 fishes with initial weight 35.33 ± 0,66g LW were distributed to a completely randomized blocks design, with four treatments and three replicates. Diets with 29.0% CP and 2980 kcal/kg DE and four available phosphorus levels (0.25; 0.35; 0.45 e 0.55% were used. The dicalcium phosphate was used as phosphorus source. The diets were fed to the fishes three times a day to apparent satiation, during 46 days. No significant effect of dietary available phosphorus on hepatosomatic index, survival rate and carcass water and protein contents were observed. The

  11. Biomarker for Glycogen Storage Diseases

    Science.gov (United States)

    2017-07-03

    Fructose Metabolism, Inborn Errors; Glycogen Storage Disease; Glycogen Storage Disease Type I; Glycogen Storage Disease Type II; Glycogen Storage Disease Type III; Glycogen Storage Disease Type IV; Glycogen Storage Disease Type V; Glycogen Storage Disease Type VI; Glycogen Storage Disease Type VII; Glycogen Storage Disease Type VIII

  12. Extratores de silício disponível em escórias e fertilizantes Extractors of available silicon in slags and fertilizers

    Directory of Open Access Journals (Sweden)

    H. S. Pereira

    2003-04-01

    Full Text Available Os métodos para quantificar o silício (Si disponível em fertilizantes e escórias não têm sido confiáveis até o momento. Neste estudo, determinou-se o Si extraído de diversas fontes, utilizando como extratores: Na2CO3 + NH4NO3, variando concentração, tempo de agitação e de reação; água; HCl 0,5 mol dm-3; Na2CO3 a 50 g dm-3; ácido cítrico a 50 g dm-3; ácido acético 0,5 mol dm-3; resina trocadora de cátions (Amberlite IRC-50, pK 6,1, além do método da coluna de lixiviação. Paralelamente, desenvolveu-se um experimento em casa de vegetação, com arroz irrigado, com aplicação de 125 kg ha-1 de Si total, proveniente de 12 fontes. O tempo de agitação mostrou não ser fundamental na determinação do Si, embora o resultado de três horas tenha sido superior estatisticamente aos demais. As concentrações de 10 + 16 g dm-3 e 30 + 48 g dm-3 de Na2CO3 + NH4NO3 mostraram-se as mais promissoras na extração de Si; por isso a menor concentração (10 + 16 g dm-3 foi escolhida para avaliar as fontes quanto ao tempo de repouso. Durante o período de repouso, verificou-se que todas as fontes apresentaram aumento na liberação de Si ao longo do tempo, tendo o período de 5 a 9 dias apresentado melhor correlação entre o Si extraído pelo arroz e o Si recuperado na análise das várias fontes. A extração com Na2CO3 + NH4NO3 dos fertilizantes com Si pode representar, com um bom grau de confiabilidade, o potencial de liberação deste elemento no solo e aproveitamento pelas plantas. As fontes mais eficientes na liberação de Si para o arroz foram a Rhodia, seguida da Wollastonita, enquanto as fontes MB-4 e escórias de alto-forno foram as que menos liberaram Si. Os extratores ácidos demonstraram ser mais eficientes na extração de Si das escórias de alto-forno e pouco eficientes com a Wollastonita. A água foi o extrator com a menor taxa de recuperação de Si das fontes testadas. Os extratores que apresentaram melhores correla

  13. Modelagem e quantificação da incerteza espacial do potássio disponível no solo por simulações estocásticas

    Directory of Open Access Journals (Sweden)

    Ismênia Ribeiro de Oliveira

    2014-09-01

    Full Text Available O objetivo deste trabalho foi avaliar o desempenho da simulação sequencial gaussiana (SSG e da simulação sequencial indicatriz (SSI na modelagem da incerteza das predições do K disponível em área de cana-de-açúcar, e comparar as simulações com o método já consagrado de krigagem ordinária (KO. Uma malha amostral com 626 pontos foi instalada em área de 200 ha, no Município de Tabapuã, em São Paulo. As simulações reproduziram a variabilidade dos dados amostrais de K disponível, enquanto a KO superestimou os baixos teores de K e subestimou os altos. O mapa de desvio-padrão obtido a partir da KO mostrou menor variação ao longo da área de estudo, quando comparado aos mapas obtidos a partir das simulações. A SSI obteve acurácia 22% superior à obtida pela SSG, na modelagem da função de distribuição condicional do K. As simulações apresentam maior eficiência que a KO para modelar incerteza na distribuição espacial do K. A SSI apresenta melhor desempenho que a SSG na estimativa dos teores de K disponível, em área de cana-de-açúcar.

  14. Producción de huevo, calidad del cascarón y rentabilidad en gallinas de primer ciclo con niveles de calcio y fósforo disponible

    Directory of Open Access Journals (Sweden)

    Víctor Manuel Valdés Narváez

    2011-01-01

    Full Text Available Para evaluar el efecto del calcio y fósforo en la calidad del cascarón del huevo se realizó un experimento con 480 gallinas Hy- Line W-36. Se usaron tres niveles de calcio (Ca (3.2, 4.2 y 5.2 % y cuatro de fósforo disponible (Pd (0.15, 0.20, 0.25 y 0.30 %. Se encontró interacción (P<0.05 del Ca y Pd en consumo de alimento (CAL y masa de huevo (MH. Con el nivel de Ca de 5.2 % y de Pd (0.15 % disminuyó el CAL (96.7 g y MH (48.7 g. El porcentaje de postura y MH fueron menores (P<0.05 con 0.15 % que con 0.3 % de Pd. La conversión alimenticia se afectó (P<0.05 por el nivel de Pd, obteniendo la mejor con 0.3 % (1.94, seguida por 0.20 % (1.96, 0.15 % (1.98, y 0.25 % (1.99. El peso del huevo fue mayor (P<0.05 en 0.7 y 0.8 g con 3.2 % que con 4.2 y 5.2 % de Ca, respectivamente. La gravedad específica se mejoró (P<0.05 al incrementar el calcio (1.080 vs 1.081 y 1.082 en la dieta. Se concluye que para buena calidad del cascarón es necesario 4.2 % de Ca, pero se debe incrementar de manera proporcional el fósforo disponible. El nivel de 0.15 % de fósforo disponible no es suficiente para obtener buena producción de huevo y conversión alimenticia.

  15. O uso de adoçantes na gravidez: uma análise dos produtos disponíveis no Brasil The use of sweeteners in pregnancy: an analysis of products available in Brazil

    OpenAIRE

    Maria Regina Torloni; Mary Uschiyama Nakamura; Alexandre Megale; Victor Hugo Saucedo Sanchez; Claudia Mano; Annunziata Sônia Fusaro; Rosiane Mattar

    2007-01-01

    Os adoçantes são freqüentemente utilizados por mulheres em idade reprodutiva. Esta é uma revisão narrativa da literatura a respeito dos adoçantes atualmente comercializados no mercado brasileiro. Existem poucas informações sobre o uso da sacarina e ciclamato na gestação, e seus efeitos sobre o feto. Devido às limitadas informações disponíveis e ao seu potencial carcinogênico em animais, a sacarina e o ciclamato devem ser evitados durante a gestação (risco C). O aspartame tem sido extensivamen...

  16. Estimación del gasto cardíaco: Utilidad en la práctica clínica. Monitorización disponible invasiva y no invasiva

    OpenAIRE

    García, X.; Mateu, L.; Maynar, J.; Mercadal, J.; Ochagavía, A.; Ferrandiz, A.

    2011-01-01

    Esta revisión pretende profundizar en el conocimiento del gasto cardíaco, sus variables y sus condicionantes, así como repasar exhaustivamente las diferentes técnicas disponibles para su monitorización y establecer las situaciones en que el conocimiento del gasto cardíaco nos aporta una información fundamental en el manejo del paciente crítico. La técnica de Fick, utilizada en los inicios para calcular el gasto cardíaco de los pacientes, ha sido sustituida hoy en día en la práctica clínica po...

  17. Automatic apparatus and data transmission for field response tests of the ground; Automatisation et teletransmission des donnees pour les tests de reponse du terrain

    Energy Technology Data Exchange (ETDEWEB)

    Laloui, L.; Steinmann, G.

    2004-07-01

    This is the report on the third part of a development started 1998 at the Swiss Federal Institute of Technology Lausanne (EPFL) in Lausanne, Switzerland. Energy piles are becoming increasingly used as a heat exchanger and heat storage device, as are geothermal probes. Their design and sizing is subject to some uncertainty due to the fact that the planner has to estimate the thermal and mechanical properties of the ground surrounding the piles or probes. The aim of the project was to develop an apparatus for field measurements of thermal and mechanical properties of an energy pile or a geothermal probe (thermal response tests). In the reported third phase of the project the portable apparatus was equipped with a data transmission device using the Internet. Real-time data acquisition and supervision is now implemented and data processing has been improved. Another goal of the project was to obtain the official accreditation of such response tests according to the European standard EN 45,000. First operation experience from a test in Lyon, France is reported.

  18. Production and validation of nuclear data for reactor and fuel cycle applications; Production et validation des donnees nucleaires pour les applications reacteurs et cycle du combustible

    Energy Technology Data Exchange (ETDEWEB)

    Trakas, C [Framatome ANP GmbH NBTT, Erlangen (Germany); Verwaerde, D [Electricite de France EDF, 75 - Paris (France); Toubon, H [Cogema, 78 - Velizy Villacoublay (France); and others

    2002-07-01

    The aim of this technical meeting is the improvement of the existing nuclear data and the production of new data of interest for the upstream and downstream of the fuel cycle (enrichment, fabrication, management, storage, transport, reprocessing), for the industrial reactors, the research reactors and the new reactor concepts (criticality, dimensioning, exploitation), for the instrumentation systems (external and internal sensors), the radioprotection, the residual power, the structures (neutron bombardment effect on vessels, rods etc..), and for the activation of steel structures (Fr, Ni, Co). The expected result is the collection of more reliable and accurate data in a wider spectrum of energies and temperatures thanks to more precise computer codes and measurement techniques. This document brings together the communications presented at this meeting and dealing with: the process of production and validation of nuclear data; the measurement facilities and the big international programs; the users needs and the industrial priorities; the basic nuclear data (BND) needs at Cogema; the expression and evaluation of BND; the evaluation work: the efficient cross-sections; the processing of data and the creation of activation libraries; from the integral measurement to the qualification and the feedback on nuclear data. (J.S.)

  19. ESTIMACIÓN DE LA VIDA ÚTIL DE UNA FÓRMULA DIETÉTICA EN FUNCIÓN DE LA DISMINUCIÓN DE LISINA DISPONIBLE

    Directory of Open Access Journals (Sweden)

    TORRES Alexia

    2001-01-01

    Full Text Available En este trabajo se determinó la vida útil de una fórmula dietética para niños con síndrome diarréico, empleando la disminución de lisina disponible como indicador de deterioro. Muestras del producto fueron empacadas en envases de material multilaminado (papel-plástico-aluminio y almacenadas a 25, 30 y 35°C, por dos meses. La lisina disponible fue medida con una frecuencia semanal y los datos fueron analizados para determinar la cinética de la reacción de deterioro y su relación con la temperatura. Al finalizar el estudio, la cantidad de lisina disponible remanente fue de 38,5% (a 25°C; 15,3 % (a 30°C y 14,1% (a 35°C. La cinética de la reacción de deterioro fue de orden uno, dependiente de la temperatura de almacenamiento, según la ecuación de interrelación de Arrhenius, con un valor de energía de activación de 15,17 kcal/mol, por lo que cae dentro del rango de las reacciones de oxidación de lípidos. De acuerdo a las características del producto [contenido de lípidos (17,5%, proteínas (17,3% y una actividad de agua de 0,46], la disminución de lisina pudiera ser explicada por la interacción de productos de oxidación de lípidos con proteínas. Considerando un valor de 0,422g lis/100g producto como punto crítico, se predijo la vida útil del producto a temperaturas diferentes a las evaluadas. Condiciones de almacenamiento por debajo de 30°C, garantizan un mayor período de vida útil: hasta 9 meses a 15°C, 6 meses a 20°C y 3 meses a 28°C, en función del indicador de deterioro evaluado.

  20. Techniques of Large Scale Processing of Counting Data; Les techniques d'exploitation a grande echelle des donnees de comptage; Tekhnika obrabotki dannykh izmerenij, provodyashchejsya v bol'shikh masshtabakh; Tecnicas de tratamiento en gran escala de los datos obtenidos en el recuento

    Energy Technology Data Exchange (ETDEWEB)

    Manov, G G; Eads, D L [Reactor Monitoring Center, Tracerlab Inc., Richmond, CA (United States)

    1960-06-15

    The problems of a laboratory performing over 10.000 radionuclide analyses per year each of which requires a high degree of accuracy, but below that required in absolute standardization, call for special requirements in data handling and in data processing. Typical measurements involve mixtures of {alpha} emitters and multi-channel pulse-height analyses, 2 {pi} and 4 {pi} {beta} counting, {pi}-{gamma} coincidence measurements. Efficient use of instruments for measuring low levels of activity is achieved by the technique of multi-plexing with magnetic tape storage and read-out. Arithmetical errors, particularly the troublesome ones involving inadvertent transposition of digits is virtually eliminated by the use of electronic calculators. In one typical operation involving a mixture of known nuclides, the gross counting data are fed into a machine which prints (reads-out) the answer on an electric typewriter. Alternatively, the results, if from a spectrometer, can be automatically plotted on an X-Y graph for further interpretive analysis. Block diagrams illustrating the sequence of steps are presented. Decay corrections are easily handled by discarding the concept of the Gregorian calendar and employing instead a vear in which the days are numbered consecutively beginning at midnight of the night of 31 December - 1 January, Greenwich Mean Time. For example, July 17, 1959, 3 : 5 PM Pacific Coast Daylight Saving Time is 198.920 days, and 2 : 30 PM October 16, 1959, Vienna time is 289.854. The advantages of being able to add, subtract, multiply or divide times expressed in this manner is apparent. The electronic circuit of a time clock based on this principle is described together with photographs. (author) [French] Dans un laboratoire qui fait chaque annee plus de 10.000 analyses de radionuclides, dont chacune doit avoir une grande precision, sans atteindre celle qui est requise aux fins de normalisation absolue, le depouillement et l'exploitation des donnees posent des

  1. Fuel assembly storage pool

    International Nuclear Information System (INIS)

    Hiranuma, Hiroshi.

    1976-01-01

    Object: To remove limitation of the number of storage of fuel assemblies to increase the number of storage thereof so as to relatively reduce the water depth required for shielding radioactive rays. Structure: Fuel assembly storage rack containers for receiving a plurality of spent fuel assembly racks are stacked in multi-layer fashion within a storage pool filled with water for shielding radioactive rays and removing heat. (Furukawa, Y.)

  2. Heat transport and storage

    International Nuclear Information System (INIS)

    Despois, J.

    1977-01-01

    Recalling the close connections existing between heat transport and storage, some general considerations on the problem of heat distribution and transport are presented 'in order to set out the problem' of storage in concrete form. This problem is considered in its overall plane, then studied under the angle of the different technical choices it involves. The two alternatives currently in consideration are described i.e.: storage in a mined cavity and underground storage as captive sheet [fr

  3. Storage in Europe

    International Nuclear Information System (INIS)

    Cabanes, J.M.; Rottenberg, J.; Abiad, A.; Caudron, S.; Girault, Ph.

    2007-01-01

    Storage represents one of the key elements among the different modulation tools. How the problem of storage is put forward in Europe in front of the increasing uncertainty of the gas demand and prices? What are the policies implemented by storage facility operators? To what extend storage can amortize gas prices volatility or allow the market actors to take the best profit of this volatility? These are the questions debated at this workshop by four specialists of this domain. (J.S.)

  4. Pit Water Storage Ottrupgaard

    DEFF Research Database (Denmark)

    Heller, Alfred

    2000-01-01

    The pit water storage, a seasonal thermal storage, was built in 1993 with floating lid and hybrid clay-polymer for pit lining. The storage was leaking severe and solutions were to be found. In the paper solutions for pit lining and floating lids are discussed, cost estimations given and coming...

  5. Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio

    Directory of Open Access Journals (Sweden)

    Sergio Mejía Kerguelen

    2009-01-01

    Full Text Available RESUMEN Se evaluaron en invernadero en un suelo de Matazul, Meta, Colombia durante 6 semanas, 2 genotipos de Brachiaria (uno mejor adaptado a bajo P, B. decumbens y otro menos adaptado, B. ruziziensis y 8 progenies del cruzamiento entre ellos ( mejores adaptados: H-7, H-40, H-28, H-58; menos adaptados: H-190, H-94, H-82, H-179. Los genotipos mejor adaptados presentaron mayor biomasa aérea, explicada por mayor área foliar, mayor absorción de P en el tallo y mayor volumen de raíz. Las características morfológicas de las raíces, principalmente longitud, peso seco y contenido de P, permiteron mejor adaptación a bajo P disponible en el suelo. El periodo de evaluación fue suficiente para observar diferencias entre progenies.

  6. Wind turbine storage systems

    International Nuclear Information System (INIS)

    Ibrahim, H.; Ilinca, A.; Perron, J.

    2005-01-01

    Electric power is often produced in locations far from the point of utilization which creates a challenge in stabilizing power grids, particularly since electricity cannot be stored. The production of decentralized electricity by renewable energy sources offers a greater security of supply while protecting the environment. Wind power holds the greatest promise in terms of environmental protection, competitiveness and possible applications. It is known that wind energy production is not always in phase with power needs because of the uncertainty of wind. For that reason, energy storage is the key for the widespread integration of wind energy into the power grids. This paper proposed various energy storage methods that can be used in combination with decentralized wind energy production where an imbalance exists between electricity production and consumption. Energy storage can play an essential role in bringing value to wind energy, particularly if electricity is to be delivered during peak hours. Various types of energy storage are already in use or are being developed. This paper identified the main characteristics of various electricity storage techniques and their applications. They include stationary or embarked storage for long or short term applications. A comparison of characteristics made it possible to determine which types of electricity storage are best suited for wind energy. These include gravity energy; thermal energy; compressed air energy; coupled storage with natural gas; coupled storage with liquefied gas; hydrogen storage for fuel cells; chemical energy storage; storage in REDOX batteries; storage by superconductive inductance; storage in supercondensers; and, storage as kinetic energy. 21 refs., 21 figs

  7. Fuel storage tank

    International Nuclear Information System (INIS)

    Peehs, M.; Stehle, H.; Weidinger, H.

    1979-01-01

    The stationary fuel storage tank is immersed below the water level in the spent fuel storage pool. In it there is placed a fuel assembly within a cage. Moreover, the storage tank has got a water filling and a gas buffer. The water in the storage tank is connected with the pool water by means of a filter, a surge tank and a water purification facility, temperature and pressure monitoring being performed. In the buffer compartment there are arranged catalysts a glow plugs for recombination of radiolysis products into water. The supply of water into the storage tank is performed through the gas buffer compartment. (DG) [de

  8. Assessing storage adequacy

    International Nuclear Information System (INIS)

    Amirault, P.

    2004-01-01

    Government policy encourages the use of natural gas. It is expected that liquefied natural gas (LNG) and Arctic gas will make up 20 to 25 per cent of supply. This presentation provided an outlook of storage value based on a technical analysis by the National Petroleum Counsel (NPC) report. A moderately robust growth is expected in the residential and commercial load which may be partially offset by robust growth in electricity. The net result is an increase in storage requirements. It was concluded that there is a strong case for growth in storage demand but a lack of good sites for additional capacity. This will lead to higher storage values. The NPC sees the need for 1 Tcf more storage use by 2025, of which 700 Bcf will need to come from new storage. In particular, current storage levels may not be sufficient to meet a colder than normal winter, and deliverability is affected by field inventory. Most storage capacity was built before 1985, mostly by regulated entities. It is expected that only 250 to 400 Bcf will be added over the next 25 years in North America. If storage becomes scarce, prices will move to the marginal cost of new additions, and the upper limit on price will be determined by salt cavern storage. An increase of $1.00 in the price of leasing storage would add about $0.11 to the average price of consumed gas. tabs., figs

  9. Spent fuel storage rack

    International Nuclear Information System (INIS)

    Morikawa, Matsuo; Uchiyama, Yuichi.

    1983-01-01

    Purpose: To improve the safety and facilitate the design by limiting the relative displacement in a storage rack. Constitution: The outer wall of a storage rack disposed in water within a fuel pool, the pool wall opposing to the storage rack and the structure between the opposing storages racks are made as a space for confining the pool water or a structure formed with a slight gap, for example, a combination of a recessed structure and a protruded structure. In such a constitution, a space for confirming the pool water is established and the pool water thus confined forms a flow resistance when the storage rack vibrates upon earthquakes, serves as a damper and significantly reduces the responsivity. Furthermore, the relative displacement in the storage rack is limited to inhibit excess earthquake forces to exert on setting bolts and rack clamping bolts of the storage rack. (Sekiya, K.)

  10. Proposta de um modelo do serviço de referência digital para a otimização de busca às informações disponíveis em catálogos digitais Propuesta de un modelo de Servicio Referencia Digital para la optimización de la búsqueda de la información disponible en los catálogos digitales

    Directory of Open Access Journals (Sweden)

    Patrícia da Silva Moreno

    2009-10-01

    Full Text Available O ambiente eletrônico para a disponibilização de informações vem incorporando com frequência os serviços oferecidos pelas bibliotecas, procurando proporcionar facilidades na localização de informações e de documentos nas redes eletrônicas. Entretanto, muitos usuários encontram dificuldades na interação com certas interfaces, o que torna a busca por in-formações desestimulante e muitas vezes estressante. Com a aplicação do agente de interface busca-se avaliar a atuação deste tipo de software como facilitador da interação do usuário com acervos disponíveis, via catálogos digitais. E ainda verificar através do experimento com o protótipo, baseado na metodologia de avaliação heurística quais ações deverão ser tomadas para a correção dos erros que afetam a usabilidade da interface, além de confirmar a hipótese de eficácia de um sistema dessa natureza. Como resultado demonstra-se a construção de um sistema que utiliza ação interdisciplinar entre a Ciência da Informação e a Ciência da Computação na otimização de busca às informações disponíveis em catálogos digitais e na Internet com a ação de um agente de interface como mediador.

  11. Preliminary data from {gamma}-cardiography during the abatement of an asthmatic attack (1961); Premieres donnees de la {gamma}-cardiographie au decours de l'etat de mal asthmatique (1961)

    Energy Technology Data Exchange (ETDEWEB)

    Georges, R; Vernejoul, P de; Raynaud, C; Blanchon, P; Kellershohn, C; Turiaf, J [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1961-07-01

    The authors used gamma cardiology during the abatement of 16 cases of asthma with a view to detecting heart attacks not otherwise visible with routine methods of examination: clinical, radiological and electro-cardio-graphical. In gamma cardiology, a radioactive indicator is used and its path followed in the cavities of the heart. The method makes it possible to study the circulation in the right heart, the pulmonary crossing, and the left heart, as well as evaluation of the heart-flow. As a result of their investigations the authors, after having discussed the significance of the data obtained with the method, suggest that it is possible by the use of gamma cardiography during the abatement of an asthma attack: 1- To confirm attacks of the right heart which have already been detected by ordinary methods. 2- To confirm the presence of modifications in the recorded curves which suggest, in the case of the left heart, possible attack; such on attack is also indicated, in a small number of cases, by electrocardiography curves. Some considerations are put forward by the authors concerning the physiopathology of attacks on the left heart. (authors) [French] Les auteurs ont fait appel a la gammacardiographie au decours de 16 cas d'etat de mal asthmatique, dans le but d'objectiver des atteintes cardiaques incapables d'etre revelees par les moyens d'exploration de routine: cliniques, radiologiques et electrocardiographiques. La gammacardiographie est un procede qui enregistre a l'aide d'un indicateur radioactif, le trajet de celui-ci dans les cavites cardiaques. Elle permet l'etude de la circulation dans le coeur droit, de la traversee pulmonaire, et le coeur gauche, de meme que le calcul du debit cardiaque. Au terme de leurs investigations, les auteurs apres avoir discute la signification des donnees fournies par la methode admettent que la gammacardiographie objective au secours de l'etat de mal asthmatique: 1- La confirmation de l'atteinte du coeur droit deja etablie

  12. PC-Cluster based Storage System Architecture for Cloud Storage

    OpenAIRE

    Yee, Tin Tin; Naing, Thinn Thu

    2011-01-01

    Design and architecture of cloud storage system plays a vital role in cloud computing infrastructure in order to improve the storage capacity as well as cost effectiveness. Usually cloud storage system provides users to efficient storage space with elasticity feature. One of the challenges of cloud storage system is difficult to balance the providing huge elastic capacity of storage and investment of expensive cost for it. In order to solve this issue in the cloud storage infrastructure, low ...

  13. Large mass storage facility

    International Nuclear Information System (INIS)

    Peskin, A.M.

    1978-01-01

    The report of a committee to study the questions surrounding possible acquisition of a large mass-storage device is presented. The current computing environment at BNL and justification for an online large mass storage device are briefly discussed. Possible devices to meet the requirements of large mass storage are surveyed, including future devices. The future computing needs of BNL are prognosticated. 2 figures, 4 tables

  14. Absorção de água pelas plantas: água disponível versus extraível e a produtividade das culturas Water absorption by plants: available versus extractable soil water and crop production

    Directory of Open Access Journals (Sweden)

    Reimar Carlesso

    1995-01-01

    Full Text Available Um aspecto importante, no entendimento da relação entre a absorção de água e a produção das culturas, é como ocorre o balanço no suprimento de água do solo para satisfazer a demanda evaporativa da atmosfera. O suprimento de água é determinado pela habilidade da cultura em utilizar a água armazenada no solo e, a demanda, por outro lado, é determinada pela combinação dos fatores meteorológicos interagindo com o "dossel" vegetativo da cultura. Apesar da abundante literatura disponível, diferentes critérios tem sido utilizados na determinação do momento de ocorrência e da duração de um déficit hídrico. Muita ênfase tem sido dada para a quantificação do consumo de água pelas plantas nos diferentes subperíodos de desenvolvimento e reduzida importância tem sido conferida a quantificação da quantidade de água disponível (extraível e seus efeitos no crescimento e desenvolvimento das plantas. Na discussão sobre a extração de água pelas plantas deve-se considerar, primeiramente, o problema da precisão na definição dos limites de disponibilidade de água. Esta publicação apresenta uma análise crítica das limitações normalmente encontradas na utilização dos limites de disponibilidade de água. A relação entre a água disponível e a água extraível do solo é analisada a partir de resultados sobre a taxa de transpiração e a tração de água extraível, a profundidade efetiva de extração do sistema radicular e, a extração de água por unidade de profundidade.An important issue to understanding the effect of water shortage on crop yield is how crops balance the supply of water from the soil to match the demand for water from the atmosphere. Supply is determined by the crop ability to utilise the stored soil water and, demand, on the other hand, is determined by a combination of metereological factors interacting with the crop canopy. Different criteria have been used to determine the timing and

  15. Variabilidade da água disponível de uma terra roxa estruturada latossólica Available soil-water variability of a "terra roxa estruturada latossólica" (rhodic kanhapludalf

    Directory of Open Access Journals (Sweden)

    S.O. Moraes

    1993-12-01

    Full Text Available A partir de 250 curvas de retenção da água no solo, elaboradas com amostras indeformadas coletadas de uma área de 6250 m² de uma Terra Roxa Estruturada Latossólica de Piracicaba,SP, foram calculados quatro conjuntos de valores de água disponível assumindo-se -1x10³, -6x10³, -1x10(4 e -3x10(4 Pa como possíveis valores de potencial mátrico correspondentes à capacidade de campo e -1,5x10³ Pa um possível valor correspondente ao ponto de murchamento permanente. Foram feitas medidas de posição (média, variabilidade (coeficiente de variação, assimetria e curtose e numero necessário de amostras para estimar a média a um dado nível de probabilidade a fim de quantificar a variabilidade e a sensibilidade dos resultados em cada conjunto e entre conjuntos de valores de água disponível. A análise dos resultados mostrou que a variabilidade da água disponível, obtida à partir de dois valores de umidade da Curva de Retenção é muito maior que a variabilidade de cada valor individualmente. Ou seja, embora as variáveis envolvidas possam ser as mesmas, o grau de variabilidade (expresso, por exemplo, pelo coeficiente de variação ou a sensibilidade das medidas (expressa pelo número necessário de amostras para estimar a média dentro de um determinado intervalo de confiança pode ser bem distinto, indicando que nem sempre resultados de uma amostragem realizada com determinado objetivo poderá servir a outros, embora possam tratar-se de variáveis dependentes.From 250 soil-water retention curves of an area of 6250 m² of a "Terra Roxa Estruturada Latossólica" (Rhodic Kanhapludalf located in Piracicaba,SP, four sets of available soil-water were calculated assuming field capacity values based on soil-water contents corresponding to -1x10³, -6x10³, -1x10(4 and -3x10(4 Pa of soil water matric potential; and permanent wilting point based on soil-water contents corresponding to -1,5x10(6 Pa. Aiming to quantify the variability and the

  16. Extração de substratos para obtenção da concentração de micronutrientes disponíveis para a rúcula Extracting procedures to assess micronutrients availability for arugula plants

    Directory of Open Access Journals (Sweden)

    Mônica Ferreira de Abreu

    2007-09-01

    Full Text Available Vários desequilíbrios fisiológicos freqüentemente ocorrem em plantas cultivadas em substratos sem solo, causados pela falta ou excesso de micronutrientes, até o momento, não existe um método de rotina adequado para avaliar a disponibilidade deles para as plantas. Portanto, neste trabalho avaliou-se a eficiência dos métodos que utilizam extratos em água (1:1,5 e o extrato de saturação, e o extrato com solução de DTPA/CaCl2 para avaliar a concentração disponível de micronutrientes disponíveis para a Eruca sativa L. (rúcula cultivada em substratos. O experimento foi conduzido em casa de vegetação, utilizando delineamento inteiramente ao acaso em esquema fatorial 3X4, com cinco repetições. Os tratamentos constituíram-se de tipos de substratos (casca de pinus, fibra de coco e turfa e quatro concentrações de micronutrientes. Os substratos foram saturados e incubados com as soluções nutritivas até estabilizar a condutividade elétrica. Após, o substrato de cada parcela foi dividido, sendo uma parte para determinar os níveis do B, Cu, Fe, Mn e Zn pelos métodos 1:1,5, extrato de saturação e DTPA/CaCl2; a outra parte foi utilizada para cultivo da rúcula por 45 dias. De maneira geral, os métodos testados foram ineficientes em avaliar a disponibilidade de Cu, Fe, Mn e Zn para a rúcula. Por outro lado, houve correlação positiva entre as concentrações de B nos extratos obtidos pelos diversos métodos e a concentração de B na parte aérea da rúcula, com r>0,98**, independentemente do substrato utilizado. Todos os métodos podem ser utilizados na determinação do teor disponível de B às plantas, destacando-se o extrato de saturação com os melhores resultados.Physiological unbalances caused by micronutrient excess or deficiency are frequent in plants grown in soilless substrates and there exist no adequate routine method of analysis to assess micronutrient availability in the substrates. Therefore, the efficacy of

  17. Qualidade da informação da internet disponível para pacientes em páginas em português Quality of internet information available to patients on websites in Portuguese

    Directory of Open Access Journals (Sweden)

    Adriana Del Giglio

    2012-12-01

    Full Text Available OBJETIVO: Pacientes e seus familiares frequentemente procuram na internet informações a respeito de suas doenças. Diabetes mellitus (DM, hipertensão arterial sistêmica (HAS e infarto agudo do miocárdio (IAM são muito prevalentes no Brasil, e informações sobre estas patologias são bastante procuradas na internet. Por isso, buscamos avaliar a qualidade da informação relacionada com estas doenças disponível em português na internet. MÉTODOS: Foram selecionadas as primeiras 20 páginas em português de cada uma das doenças escolhidas, através do algoritmo de busca do Google®. Como ferramentas para avaliar a qualidade da informação foram utilizados o Discern Questionnarie (DQ e o Health on Net (HON. Para saber se as informações eram adequadas, foram utilizadas as diretrizes (guidelines brasileiras e internacionais para as diferentes comorbidades. RESULTADOS: Ao avaliar o conteúdo das informações disponíveis, 45%, 95%, 85% das páginas continham, respectivamente, a definição de DM, HAS e IAM. Com relação ao diagnóstico e ao tratamento, somente 25% das páginas das três comorbidades apresentavam especificamente esta informação. Somente 15%, 20% e 10% das páginas tinham a certificação pelo HON, respectivamente. Em função do DQ, as páginas obtiveram notas maiores que 50% em 70% das páginas de DM, 65% nas de HAS e 55% nas de IAM. CONCLUSÃO: A informação disponível em português na internet sobre as três patologias escolhidas (DM, HAS e IAM é frequentemente inadequada e insuficiente.OBJECTIVE: Patients and their relatives often look for information about their diseases on the internet. Diabetes mellitus (DM, systemic arterial hypertension (SAH, and acute myocardial infarction (AMI are the most prevalent in Brazil, thus, information on these pathologies is extremely searched for on the internet. For this reason, this study attempted to evaluate the quality of information available in Portuguese on the web

  18. Nitrogênio disponível ao milho: crescimento, absorção e rendimento de grãos Nitrogen available to maize: absorption, growth and yield

    Directory of Open Access Journals (Sweden)

    Solange França

    2011-11-01

    Full Text Available Este trabalho visou quantificar o nitrogênio (N disponível ao milho e avaliar seu efeito sobre o índice de área foliar (IAF, a produção de massa seca da parte aérea (MSPA, o N absorvido pela parte aérea e o rendimento de grãos. As avaliações foram realizadas aos 52, 65, 74, 82, 99 e 160 dias após a emergência (DAE em um experimento de manejo de solo conduzido em plantio direto desde 1985, com os sistemas de culturas de aveia/milho (A/M, aveia + ervilhaca/milho + caupi (A+E/M+C e ervilhaca/milho (E/M e duas doses de N (0 N e 180 N - kg ha-1 aplicadas no milho, na forma de uréia. Na safra 2000/01 foram aplicadas doses de 0, 60, 120 e 180 kg ha-1 de N. O N estimado disponível ao milho e calculado a partir da contribuição do solo, plantas de cobertura e do adubo nitrogenado, variou de 27 a 192 kg ha-1, sendo os menores valores associados aos tratamentos apenas com gramíneas (A/M e os maiores aos com N e presença de leguminosas no sistema (E/M e A+E/M+C. Todas as variáveis avaliadas apresentaram alta dependência do N disponível e tiveram seus valores maximizados próximos da maior disponibilidade de N (192 kg ha-1. Com esta disponibilidade foram observados, no estádio de polinização (65 DAE, o maior IAF (4,41 e a mais alta concentração de N na folha índice (2,49%, enquanto o maior acúmulo de N na parte aérea foi constatado no estádio de grão leitoso (74 DAE e o acúmulo de MSPA no estádio de grão dentado (99 DAE. O rendimento máximo de grãos atingido foi de 8.920 kg ha-1, correspondendo a uma exportação de N pelo grão, de 112 kg ha-1.This work aimed to quantify the available nitrogen (N to a maize crop and evaluate its effects on leaf area index (LAI, shoot dry matter (SDM production, N absorption by the above ground biomass, and grain yield. The evaluations were performed in a soil management experiment run since 1985, with three cropping systems (oat - Avena strigosa/maize, oat + vetch - Vicia sativa/maize and

  19. Benchmarking Cloud Storage Systems

    OpenAIRE

    Wang, Xing

    2014-01-01

    With the rise of cloud computing, many cloud storage systems like Dropbox, Google Drive and Mega have been built to provide decentralized and reliable file storage. It is thus of prime importance to know their features, performance, and the best way to make use of them. In this context, we introduce BenchCloud, a tool designed as part of this thesis to conveniently and efficiently benchmark any cloud storage system. First, we provide a study of six commonly-used cloud storage systems to ident...

  20. Modelagem geoestatística das incertezas da distribuição espacial do fósforo disponível no solo, em área de cana-de-açúcar

    Directory of Open Access Journals (Sweden)

    Ismênia Ribeiro de Oliveira

    2013-12-01

    Full Text Available O fósforo destaca-se como um dos nutrientes limitantes ao desenvolvimento da cultura da cana-de-açúcar em solos brasileiros. Esse elemento apresenta grande variabilidade espacial, coordenada pelos atributos que regem as reações de adsorção e dessorção. Estimativas espaciais são conduzidas por meio de interpolações geoestatísticas para a caracterização dessa variabilidade. No entanto, tais estimativas apresentam incertezas inerentes ao procedimento que estão associadas à estrutura de variabilidade do atributo em estudo e à configuração amostral da área. Dessa forma, avaliar a incerteza das predições associada à distribuição espacial do fósforo disponível (Plábil é importante para otimizar o uso dos fertilizantes fosfatados. O objetivo deste estudo foi avaliar o desempenho da simulação sequencial gaussiana (SSG e da krigagem ordinária (KO na modelagem da incerteza das predições do fósforo disponível. Uma malha amostral com 626 pontos foi instalada em uma área experimental de 200 hectares de cana-de-açúcar no município de Tabapuã, São Paulo. Foram geradas 200 realizações por meio do algoritmo da SSG. As realizações da SSG reproduziram as estatísticas e a distribuição dos dados amostrais. A estatística G (0,81 indicou boa proximidade entre as frações dos valores simulados e as dos observados. As realizações da SSG preservaram a variabilidade espacial do Plábil, sem o efeito de suavização obtido pelo mapa da KO. A acurácia na reprodução do variograma dos dados amostrais, obtida pelas realizações da SSG foi, em média, 240 vezes maior que obtida por meio da KO. O mapa de incertezas, obtido por meio da KO, apresentou menor variação na área de estudo do que por SSG. Dessa forma, a avaliação das incertezas, pela SSG, evidenciou-se mais informativa, podendo ser utilizada para definir e delimitar, de forma mais precisa, as áreas de manejo específico.

  1. A new storage-ring light source

    Energy Technology Data Exchange (ETDEWEB)

    Chao, Alex [SLAC National Accelerator Lab., Menlo Park, CA (United States)

    2015-06-01

    A recently proposed technique in storage ring accelerators is applied to provide potential high-power sources of photon radiation. The technique is based on the steady-state microbunching (SSMB) mechanism. As examples of this application, one may consider a high-power DUV photon source for research in atomic and molecular physics or a high-power EUV radiation source for industrial lithography. A less challenging proof-of-principle test to produce IR radiation using an existing storage ring is also considered.

  2. Water Storage: Quo Vadis?

    Science.gov (United States)

    Smakhtin, V.

    2017-12-01

    Humans stored water - in various forms - for ages, coping with water resources variability, and its extremes - floods and droughts. Storage per capita, and other storage-related indicators, have essentially become one way of reflecting the progress of economic development. Massive investments went into large surface water reservoirs that have become the characteristic feature of the earth's landscapes, bringing both benefits and controversy. As water variability progressively increases with changing climate, globally, on one hand, and the idea of sustainable development receives strong traction, on another - it may be worth the while to comprehensively examine current trends and future prospects for water storage development. The task is surely big, to say the least. The presentation will aim to initiate a structured discussion on this multi-facet issue and identify which aspects and trends of water storage development may be most important in the context of Sustainable Development Goals, Sendai Framework for Disaster Risk Reduction, Paris Agreement on Climate Change, and examine how, where and to what extent water storage planning can be improved. It will cover questions like i) aging of large water storage infrastructure, the current extent of this trend in various geographical regions, and possible impacts on water security and security of nations; ii) improved water storage development planning overall in the context of various water development alternatives and storage options themselves and well as their combinations iii) prospects for another "storage revolution" - speed increase in dam numbers, and where, if at all this is most likely iv) recent events in storage development, e.g. is dam decommissioning a trend that picks pace, or whether some developing economies in Asia can do without going through the period of water storage construction, with alternatives, or suggestions for alleviation of negative impacts v) the role of subsurface storage as an

  3. Energy Storage Economics

    Energy Technology Data Exchange (ETDEWEB)

    Elgqvist, Emma M [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2017-09-07

    This presentation provides an overview on energy storage economics including recent market trends, battery terminology and concepts, value streams, challenges, and an example of how photovoltaics and storage can be used to lower demand charges. It also provides an overview of the REopt Lite web tool inputs and outputs.

  4. System for secure storage

    NARCIS (Netherlands)

    2005-01-01

    A system (100) comprising read means (112) for reading content data and control logic data from a storage medium (101), the control logic data being uniquely linked to the storage medium (101), processing means (113-117), for processing the content data and feeding the processed content data to an

  5. Grain Handling and Storage.

    Science.gov (United States)

    Harris, Troy G.; Minor, John

    This text for a secondary- or postecondary-level course in grain handling and storage contains ten chapters. Chapter titles are (1) Introduction to Grain Handling and Storage, (2) Elevator Safety, (3) Grain Grading and Seed Identification, (4) Moisture Control, (5) Insect and Rodent Control, (6) Grain Inventory Control, (7) Elevator Maintenance,…

  6. Wind-energy storage

    Science.gov (United States)

    Gordon, L. H.

    1980-01-01

    Program SIMWEST can model wind energy storage system using any combination of five types of storage: pumped hydro, battery, thermal, flywheel, and pneumatic. Program is tool to aid design of optional system for given application with realistic simulation for further evaluation and verification.

  7. Optical storage networking

    Science.gov (United States)

    Mohr, Ulrich

    2001-11-01

    For efficient business continuance and backup of mission- critical data an inter-site storage network is required. Where traditional telecommunications costs are prohibitive for all but the largest organizations, there is an opportunity for regional carries to deliver an innovative storage service. This session reveals how a combination of optical networking and protocol-aware SAN gateways can provide an extended storage networking platform with the lowest cost of ownership and the highest possible degree of reliability, security and availability. Companies of every size, with mainframe and open-systems environments, can afford to use this integrated service. Three mayor applications are explained; channel extension, Network Attached Storage (NAS), Storage Area Networks (SAN) and how optical networks address the specific requirements. One advantage of DWDM is the ability for protocols such as ESCON, Fibre Channel, ATM and Gigabit Ethernet, to be transported natively and simultaneously across a single fiber pair, and the ability to multiplex many individual fiber pairs over a single pair, thereby reducing fiber cost and recovering fiber pairs already in use. An optical storage network enables a new class of service providers, Storage Service Providers (SSP) aiming to deliver value to the enterprise by managing storage, backup, replication and restoration as an outsourced service.

  8. ERDA's Chemical Energy Storage Program

    Science.gov (United States)

    Swisher, J. H.; Kelley, J. H.

    1977-01-01

    The Chemical Energy Storage Program is described with emphasis on hydrogen storage. Storage techniques considered include pressurized hydrogen gas storage, cryogenic liquid hydrogen storage, storage in hydride compounds, and aromatic-alicyclic hydrogen storage. Some uses of energy storage are suggested. Information on hydrogen production and hydrogen use is also presented. Applications of hydrogen energy systems include storage of hydrogen for utilities load leveling, industrial marketing of hydrogen both as a chemical and as a fuel, natural gas supplementation, vehicular applications, and direct substitution for natural gas.

  9. E-investigación: una introducción para principiantes (y escépticos a las fuentes de ciencia política disponibles en la web

    Directory of Open Access Journals (Sweden)

    Mauro Calise

    2009-06-01

    Full Text Available El propósito de este artículo de revisión es el de contribuir al seguimiento y el debate de los cambios en el entorno de la investigación electrónica. Vamos a presentar una visión general (adaptado principalmente a los neófitos del ciberespacio de algunos de los mejores recursos electrónicos disponibles en línea para la ciencia política, la elaboración de nuestra experiencia como editores de IPSA-Portal, el sitio web de la Asociación Internacional de Ciencia Política dedicada a la selección y revisión los mejores e-hubs en nuestra disciplina. Sin embargo, al aventurarse en el ciberespacio de la ciencia política, vamos a tratar de ofrecer una comprensión más general de las principales tendencias que afectan la galaxia del internet. Por mucho que estemos tentados sólo para pegarnos a nuestro pequeño planeta, tenemos que ser conscientes de que es parte de, y surge de, un sistema mucho más grande.

  10. Electricity Storage. Technology Brief

    Energy Technology Data Exchange (ETDEWEB)

    Simbolotti, G. [Italian National Agency for New Technologies, Energy and Sustainable Economic Development ENEA, Rome (Italy); Kempener, R. [International Renewable Energy Agency IRENA, Bonn (Germany)

    2012-04-15

    Electricity storage is a key technology for electricity systems with a high share of renewables as it allows electricity to be generated when renewable sources (i.e. wind, sunlight) are available and to be consumed on demand. It is expected that the increasing price of fossil fuels and peak-load electricity and the growing share of renewables will result in electricity storage to grow rapidly and become more cost effective. However, electricity storage is technically challenging because electricity can only be stored after conversion into other forms of energy, and this involves expensive equipment and energy losses. At present, the only commercial storage option is pumped hydro power where surplus electricity (e.g. electricity produced overnight by base-load coal or nuclear power) is used to pump water from a lower to an upper reservoir. The stored energy is then used to produce hydropower during daily high-demand periods. Pumped hydro plants are large-scale storage systems with a typical efficiency between 70% and 80%, which means that a quarter of the energy is lost in the process. Other storage technologies with different characteristics (i.e. storage process and capacity, conversion back to electricity and response to power demand, energy losses and costs) are currently in demonstration or pre-commercial stages and discussed in this brief report: Compressed air energy storage (CAES) systems, Flywheels; Electrical batteries; Supercapacitors; Superconducting magnetic storage; and Thermal energy storage. No single electricity storage technology scores high in all dimensions. The technology of choice often depends on the size of the system, the specific service, the electricity sources and the marginal cost of peak electricity. Pumped hydro currently accounts for 95% of the global storage capacity and still offers a considerable expansion potential but does not suit residential or small-size applications. CAES expansion is limited due to the lack of suitable

  11. Plutonium storage criteria

    Energy Technology Data Exchange (ETDEWEB)

    Chung, D. [Scientech, Inc., Germantown, MD (United States); Ascanio, X. [Dept. of Energy, Germantown, MD (United States)

    1996-05-01

    The Department of Energy has issued a technical standard for long-term (>50 years) storage and will soon issue a criteria document for interim (<20 years) storage of plutonium materials. The long-term technical standard, {open_quotes}Criteria for Safe Storage of Plutonium Metals and Oxides,{close_quotes} addresses the requirements for storing metals and oxides with greater than 50 wt % plutonium. It calls for a standardized package that meets both off-site transportation requirements, as well as remote handling requirements from future storage facilities. The interim criteria document, {open_quotes}Criteria for Interim Safe Storage of Plutonium-Bearing Solid Materials{close_quotes}, addresses requirements for storing materials with less than 50 wt% plutonium. The interim criteria document assumes the materials will be stored on existing sites, and existing facilities and equipment will be used for repackaging to improve the margin of safety.

  12. Compact nuclear fuel storage

    International Nuclear Information System (INIS)

    Kiselev, V.V.; Churakov, Yu.A.; Danchenko, Yu.V.; Bylkin, B.K.; Tsvetkov, S.V.

    1983-01-01

    Different constructions of racks for compact storage of spent fuel assemblies (FA) in ''coolin''g pools (CP) of NPPs with the BWR and PWR type reactors are described. Problems concerning nuclear and radiation safety and provision of necessary thermal conditions arising in such rack design are discussed. It is concluded that the problem of prolonged fuel storage at NPPs became Very actual for many countries because of retapdation of the rates of fuel reprocessing centers building. Application of compact storage racks is a promising solution of the problem of intermediate FA storage at NPPs. Such racks of stainless boron steel and with neutron absorbers in the from of boron carbide panels enable to increase the capacity of the present CP 2-2.6 times, and the period of FA storage in them up to 5-10 years

  13. Electricity storage using a thermal storage scheme

    Energy Technology Data Exchange (ETDEWEB)

    White, Alexander, E-mail: ajw36@cam.ac.uk [Hopkinson Laboratory, Cambridge University Engineering Department, Trumpington Street, Cambridge. CB2 1PZ (United Kingdom)

    2015-01-22

    The increasing use of renewable energy technologies for electricity generation, many of which have an unpredictably intermittent nature, will inevitably lead to a greater demand for large-scale electricity storage schemes. For example, the expanding fraction of electricity produced by wind turbines will require either backup or storage capacity to cover extended periods of wind lull. This paper describes a recently proposed storage scheme, referred to here as Pumped Thermal Storage (PTS), and which is based on “sensible heat” storage in large thermal reservoirs. During the charging phase, the system effectively operates as a high temperature-ratio heat pump, extracting heat from a cold reservoir and delivering heat to a hot one. In the discharge phase the processes are reversed and it operates as a heat engine. The round-trip efficiency is limited only by process irreversibilities (as opposed to Second Law limitations on the coefficient of performance and the thermal efficiency of the heat pump and heat engine respectively). PTS is currently being developed in both France and England. In both cases, the schemes operate on the Joule-Brayton (gas turbine) cycle, using argon as the working fluid. However, the French scheme proposes the use of turbomachinery for compression and expansion, whereas for that being developed in England reciprocating devices are proposed. The current paper focuses on the impact of the various process irreversibilities on the thermodynamic round-trip efficiency of the scheme. Consideration is given to compression and expansion losses and pressure losses (in pipe-work, valves and thermal reservoirs); heat transfer related irreversibility in the thermal reservoirs is discussed but not included in the analysis. Results are presented demonstrating how the various loss parameters and operating conditions influence the overall performance.

  14. Ultrafine hydrogen storage powders

    Science.gov (United States)

    Anderson, Iver E.; Ellis, Timothy W.; Pecharsky, Vitalij K.; Ting, Jason; Terpstra, Robert; Bowman, Robert C.; Witham, Charles K.; Fultz, Brent T.; Bugga, Ratnakumar V.

    2000-06-13

    A method of making hydrogen storage powder resistant to fracture in service involves forming a melt having the appropriate composition for the hydrogen storage material, such, for example, LaNi.sub.5 and other AB.sub.5 type materials and AB.sub.5+x materials, where x is from about -2.5 to about +2.5, including x=0, and the melt is gas atomized under conditions of melt temperature and atomizing gas pressure to form generally spherical powder particles. The hydrogen storage powder exhibits improved chemcial homogeneity as a result of rapid solidfication from the melt and small particle size that is more resistant to microcracking during hydrogen absorption/desorption cycling. A hydrogen storage component, such as an electrode for a battery or electrochemical fuel cell, made from the gas atomized hydrogen storage material is resistant to hydrogen degradation upon hydrogen absorption/desorption that occurs for example, during charging/discharging of a battery. Such hydrogen storage components can be made by consolidating and optionally sintering the gas atomized hydrogen storage powder or alternately by shaping the gas atomized powder and a suitable binder to a desired configuration in a mold or die.

  15. Storage of radioactive wastes

    International Nuclear Information System (INIS)

    1992-07-01

    Even if the best waste minimization measures are undertaken throughout radioisotope production or usage, significant radioactive wastes arise to make management measures essential. For developing countries with low isotope usage and little or no generation of nuclear materials, it may be possible to handle the generated waste by simply practicing decay storage for several half-lives of the radionuclides involved, followed by discharge or disposal without further processing. For those countries with much larger facilities, longer lived isotopes are produced and used. In this situation, storage is used not only for decay storage but also for in-process retention steps and for the key stage of interim storage of conditioned wastes pending final disposal. The report will serve as a technical manual providing reference material and direct step-by-step know-how to staff in radioisotope user establishments and research centres in the developing Member States without nuclear power generation. Considerations are limited to the simpler storage facilities. The restricted quantities and low activity associated with the relevant wastes will generally permit contact-handling and avoid the need for shielding requirements in the storage facilities or equipment used for handling. A small quantity of wastes from some radioisotope production cells and from reactor cooling water treatment may contain sufficient short lived activity from activated corrosion products to require some separate decay storage before contact-handling is suitable. 16 refs, 12 figs, 8 tabs

  16. Aflatoxins & Safe Storage

    Directory of Open Access Journals (Sweden)

    Philippe eVillers

    2014-04-01

    Full Text Available The paper examines both field experience and research on the prevention of the exponential growth of aflatoxins during multi-month post harvest storage in hot, humid countries. The approach described is the application of modern safe storage methods using flexible, Ultra Hermetic™ structures that create an unbreatheable atmosphere through insect and microorganism respiration alone, without use of chemicals, fumigants, or pumps. Laboratory and field data are cited and specific examples are given describing the uses of Ultra Hermetic storage to prevent the growth of aflatoxins with their significant public health consequences. Also discussed is the presently limited quantitative information on the relative occurrence of excessive levels of aflatoxin (>20 ppb before versus after multi-month storage of such crops as maize, rice and peanuts when under high humidity, high temperature conditions and, consequently, the need for further research to determine the frequency at which excessive aflatoxin levels are reached in the field versus after months of post-harvest storage. The significant work being done to reduce aflatoxin levels in the field is mentioned, as well as its probable implications on post harvest storage. Also described is why, with some crops such as peanuts, using Ultra Hermetic storage may require injection of carbon dioxide or use of an oxygen absorber as an accelerant. The case of peanuts is discussed and experimental data is described.

  17. The relationship between available P and selected biological properties in the rhizosphere of ten crop species under glasshouse conditions Relación entre el P disponible y algunas propiedades biológicas en la rizosfera de diez especies vegetales cultivadas en invernadero Relação entre o P disponível e um conjunto de propriedades biológicas selecionadas na rizosfera de dez espécies vegetais cultivadas em estufa

    Directory of Open Access Journals (Sweden)

    Ali Akbar Safari Sinegani

    2012-07-01

    disponible se midió en el suelo con Solanum lycopersicum. Helianthus annuus, Zea mays y Phasaeolous vulgaris tuvieron un efecto relativamente mayor sobre la disminución de P disponible en la rizosfera del suelo y en el suelo adherido a las raíces. S. lycopersicum y P. vulgaris presentaron la concentración de P más elevada (> 980 mg kg-1 y H. annuus y Z. mays fueron las especies que mostraron una mayor asimilación de P (17,62 mg maceta-1 y 13,13 mg maceta-1, respectivamente. El contenido medio de P en la biomasa microbiana del suelo (MBP fue significativamente elevado en la rizosfera del suelo y en el suelo adherido a las raíces de T. aestivum, Z. mays, S. tuberosum y S. lycopersicum (> 16 mg kg-1. La media del número de esporas de glomales (SNG presentó valores elevados en la rizosfera del suelo y en el suelo adherido a las raíces de P. vulgaris, S. lycopersicum, T. aestivum y Z. mays (> 167 N/10 g suelo. Las correlaciones negativas entre el P disponible y soluble con propiedades biológicas del suelo, como el SNG y la actividad fosfatasa alcalina, así como la correlación positiva con el pH del suelo, pusieron de manifiesto la importancia de los microorganismos de la rizosfera y de los glomales sobre la nutrición fosfatada de especies vegetales en suelos calizos. Así, la acidificación de la rizosfera en suelos calizos podría no ser un factor tan importante en la asimilación y adquisición de P por las plantas como es la mejora de las propiedades biológicas.

    O objectivo do presente estudo foi avaliar, em diferentes zonas de amostragem, o efeito do cultivo de 10 espécies vegetais em determinadas propriedades biológicas selecionadas bem como na disponibilidade de fósforo (P. A menor disponibilidade de P observou-se nos solos cultivados

  18. Spent-fuel-storage alternatives

    International Nuclear Information System (INIS)

    1980-01-01

    The Spent Fuel Storage Alternatives meeting was a technical forum in which 37 experts from 12 states discussed storage alternatives that are available or are under development. The subject matter was divided into the following five areas: techniques for increasing fuel storage density; dry storage of spent fuel; fuel characterization and conditioning; fuel storage operating experience; and storage and transport economics. Nineteen of the 21 papers which were presented at this meeting are included in this Proceedings. These have been abstracted and indexed

  19. Magnox waste storage complex

    International Nuclear Information System (INIS)

    Anon.

    1990-01-01

    This article looks at the design and construction of British Nuclear Fuel Limited's (BNFL) Magnox waste storage complex by Costain Engineering Limited. Magnox swarf from fuel decanning is stored underwater in specially designed silos. Gas processing capabilities from Costain Engineering Limited and the experience of BNFL combined in this project to provide the necessary problem-solving skills necessary for this waste storage upgrading and extension project. A retrofitted inerting facility was fitted to an existing building and a new storage extension was fitted, both without interrupting reprocessing operations at Sellafield. (UK)

  20. Tiered Storage For LHC

    CERN Multimedia

    CERN. Geneva; Hanushevsky, Andrew

    2012-01-01

    For more than a year, the ATLAS Western Tier 2 (WT2) at SLAC National Accelerator has been successfully operating a two tiered storage system based on Xrootd's flexible cross-cluster data placement framework, the File Residency Manager. The architecture allows WT2 to provide both, high performance storage at the higher tier to ATLAS analysis jobs, as well as large, low cost disk capacity at the lower tier. Data automatically moves between the two storage tiers based on the needs of analysis jobs and is completely transparent to the jobs.

  1. Next generation storage facility

    International Nuclear Information System (INIS)

    Schlesser, J.A.

    1994-01-01

    With diminishing requirements for plutonium, a substantial quantity of this material requires special handling and ultimately, long-term storage. To meet this objective, we at Los Alamos, have been involved in the design of a storage facility with the goal of providing storage capabilities for this and other nuclear materials. This paper presents preliminary basic design data, not for the structure and physical plant, but for the container and arrays which might be configured within the facility, with strong emphasis on criticality safety features

  2. Monitored retrievable storage design

    International Nuclear Information System (INIS)

    Woods, W.D.

    1985-01-01

    The Nuclear Waste Policy Act of 1982 (NWPA) established a national policy for the safe storage and disposal of spent nuclear fuel and high-level radioactive waste. The NWPA requires that DOE... ''submit a proposal to Congress on the need for and feasibility of one or more Monitored Retrievable Storage (MRS) Facilities''... In subsequent evaluations of the commercial nuclear waste management system, DOE has identified important advantages in providing an MRS Facility as an integral part of the total system. The integral MRS Facility serves as an independent, centralized spent nuclear fuel and high-level waste handling and packaging facility with a safe temporary storage capacity

  3. Storage-ring FEL for the vuv

    International Nuclear Information System (INIS)

    Peterson, J.M.; Bisognano, J.J.; Garren, A.A.; Halbach, K.; Kim, K.J.; Sah, R.C.

    1984-09-01

    A free-electron laser for the vuv operating in a storage ring requires an electron beam of high density and low energy spread and a short wavelength, narrow-gap undulator. These conditions tend to produce longitudinal and transverse beam instabilities, excessive beam growth through multiple intrabeam scattering, and a short gas-scattering lifetime. Passing the beam only occasionally through the undulator in a by-pass straight section, as proposed by Murphy and Pellegrini, allows operation in a high-gain, single-pass mode and a long gas-scattering lifetime. Several storage ring designs have been considered to see how best to satisfy the several requirements. Each features a by-pass, a low-emittance lattice, and built-in wigglers for enhanced damping to counteract the intra-beam scattering. 15 references, 3 figures, 2 tables

  4. Copper availability as related to soil copper fractions in oxisols under liming Calagem e os teores disponíveis e as frações de cobre em latossolos

    Directory of Open Access Journals (Sweden)

    Clístenes Williams Araújo do Nascimento

    2003-02-01

    Full Text Available The knowledge of the chemical forms of copper in soils and the relationships of these forms with soil copper availability are important for predicting the copper behavior in the soil-plant system. The present work studies the influence of liming on the available contents of copper as well as on the forms of copper fractions in six types of Oxisols. Soil samples, with and without liming, received copper at rates of 0.0, 20.0 and 40.0 mg dm-3 and remained incubated for 30 days. Then, available copper was extracted with Mehlich-1, Mehlich-3, DTPA and EDTA solutions, and analyzed by atomic absorption spectrophotometry. Additionally, soil samples were extracted in a sequential procedure to determine Cu in fractions of soil, as follows: exchangeable-Cu fraction, organic matter-Cu fraction, Mn oxide-Cu fraction, amorphous Fe oxide-Cu fraction, crystalline Fe oxide-Cu fraction, residual-Cu fraction, and the total Cu content in the soil. Soil samples to which Cu was added presented higher Cu retention in the organic matter fraction with a small percentage retained in the exchangeable-Cu fraction. Liming resulted in a decrease of Cu in the exchangeable and organic matter fractions and an increase in the Fe and Mn oxide fractions and in the residual fraction. Without liming, the organic matter fraction presented the highest contribution to Cu content found in the soil extracts obtained with all extractors, except EDTA. For treatments with liming, Cu contents in the organic matter fraction were better correlated to Cu contents in extracts obtained with DTPA and Mehlich-3.O conhecimento das formas químicas em que se encontra o cobre em solos, e suas relações com os teores disponíveis, são importantes para a previsão do seu comportamento no sistema solo-planta. Nesse sentido, este trabalho estuda a influência da calagem sobre os teores disponíveis e sobre o fracionamento de Cu em amostras de seis Latossolos. Essas amostras, submetidas ou não a

  5. Comportamento do sorgo granífero em função de diferentes frações da água disponível no solo Grain sorghum responses under several fractions of plant available water

    Directory of Open Access Journals (Sweden)

    Marcia Xavier Peiter

    1996-04-01

    Full Text Available O comportamento morfológico e fisiológico das plantas de sorgo em relação à diferentes níveis de déficit hídrico tem sido caracterizado extensivamente. Entretanto, as respostas são dependentes do grau de severidade e duração do déficit. O objetivo desse experimento foi analisar o comportamento da cultura do sorgo quando submetida a diferentes frações da água disponível no solo. O experimento foi desenvolvido no ano agrícola de 1993/94, em lisímetros de drenagem, protegidos das precipitações pluviométricas através de uma cobertura móvel. A cultivar Agroceres 3001 foi submetida a quatro tratamentos de irrigação. Irrigações foram aplicadas quando a fração da água disponível (FAD, medida na profundidade do solo explorado pelo sistema radicular das plantas, atingia valores inferiores a 0,95, 0,85, 0,75, e 0,65 da FAD, com três repetições. A altura de plantas e o índice de área foliar foram semelhantes para os tratamentos de 0,75, 0,85 e 0,95 da FAD. O manejo da irrigação com a manutenção da FAD a 0,75 e 0,85 apresentaram valores semelhantes para todas as variáveis analisadas. A manutenção da FAD a 0,65 resultou em um menor crescimento das plantas de sorgo, indicando a ocorrência de déficit hídrico.The morphological and physiological behaviour of grain sorghum plants submitted to different water deficit levels has been extensively characterized. However, plant responses are extremelly dependents of the severity and duration of lhe stress. The objective of this experiment was to evaluate the performance of sorghum crop when submitted to different irrigation management levels. This experiment was conducted during 1993/94 growing season in a set of drainage lysimeters under a rain shelter. The sorghum variety Agroceres 3001 was submitted to four irrigation treatments. Irrigations were aplyied when the fraction of plant available water (PAW were lower than 0.95, 0.85, 0.75 and 0.65, with three replications

  6. Água disponível em um Latossolo Vermelho argiloso e murcha fisiológica de culturas Available water in a clayey Oxisol and physiological wilting of crops

    Directory of Open Access Journals (Sweden)

    Vilson A. Klein

    2006-09-01

    Full Text Available Para a determinação do volume de água retido no solo e disponível às plantas, é imprescindível quantificar o teor de água do solo (TAS na capacidade de campo (CC e no ponto de murcha permanente (PMP. O objetivo deste trabalho foi comparar os valores do TAS na CC e no PMP determinados por distintos métodos. Utilizaram-se amostras de um Latossolo Vermelho. A CC foi obtida no campo com o método do perfil instantâneo e, no laboratório, com funis de placa porosa. O PMP foi determinado, em laboratório, como sendo o teor de água residual retida no potencial matricial de -1,5 MPa, em câmara de Richards e com medidor de potencial de ponto de orvalho WP4 PotentiaMeter. Para murcha das plantas, o TAS foi significativamente menor no método fisiológico que o determinado nas câmaras de Richards; entretanto, o teor de água do solo no PMP foi estatisticamente igual para a cultura do girassol e superior para o milho, quando comparado com aquele obtido pelo WP4. A água disponível diminuiu com o aumento na tensão para a estimativa da CC e com o método WP4, mas não diferiu do método fisiológico. Assim, o WP4 permitiu adequada estimativa do PMP e disponibilidade hídrica às plantas, em solo argiloso.To estimate available soil water to plants it is necessary to measure field capacity (FC and permanent wilting point (PWP. The objective of this study was to compare soil moisture at FC and PWP measured by different methods. The soil used was a tropical Oxisol (Haplorthox. The FC was measured under field conditions, using the internal drainage method and in laboratory using porous plate funnel. The PWP was quantified in laboratory as the soil moisture at -1.5 MPa matric potential measured by pressure plate apparatus (Richards chamber and by WP4 dewpoint Potentia Meter. The physiological PWP was measured using corn and sunflower plants, when they had three leaf pairs and showed irreversible wilting. The soil moisture for PWP based on the

  7. O uso de adoçantes na gravidez: uma análise dos produtos disponíveis no Brasil The use of sweeteners in pregnancy: an analysis of products available in Brazil

    Directory of Open Access Journals (Sweden)

    Maria Regina Torloni

    2007-05-01

    Full Text Available Os adoçantes são freqüentemente utilizados por mulheres em idade reprodutiva. Esta é uma revisão narrativa da literatura a respeito dos adoçantes atualmente comercializados no mercado brasileiro. Existem poucas informações sobre o uso da sacarina e ciclamato na gestação, e seus efeitos sobre o feto. Devido às limitadas informações disponíveis e ao seu potencial carcinogênico em animais, a sacarina e o ciclamato devem ser evitados durante a gestação (risco C. O aspartame tem sido extensivamente estudado em animais, sendo considerado seguro para uso na gestação (risco B, exceto para mulheres homozigóticas para fenilcetonúria (risco C. A sucralose e o acessulfame-K não são tóxicos, carcinogênico ou mutagênicos em animais, mas não existem estudos controlados em humanos. Porém, como esses dois adoçantes não são metabolizados, parece improvável que seu uso durante a gestação possa ser prejudicial (risco B. A estévia, substância derivada de uma planta nativa brasileira, não produz efeitos adversos sobre a gestação em animais, porém não existem estudos em humanos (risco B. Os agentes de corpo usados na formulação dos adoçantes (manitol, sorbitol, xilitol, eritrol, lactilol, isomalte, maltilol, lactose, frutose, maltodextrina, dextrina e açúcar invertido são substâncias consideradas seguras para o consumo humano. Concluindo, segundo as evidências atualmente disponíveis, o aspartame, a sucralose, o acessulfame e a estévia podem ser utilizados com segurança durante a gestação.Sweeteners are frequently used by women of reproductive age. This is a narrative review about the sweeteners currently sold in the Brazilian commerce. There is a few information on the use of saccharin and cyclamates in pregnancy and their effects on the fetus. Due to the limited information available and their carcinogenic potential in animal species, saccharin and cyclamates should be avoided during pregnancy (risk C. Aspartame

  8. Storage of strawberry pollen

    Directory of Open Access Journals (Sweden)

    Rafet Aslantaş

    2013-12-01

    Full Text Available This study was carried out to determine storage ability of strawberry pollen at different temperatures for three different strawberry cultivars 'Aliso', 'Brio', and 'Cruz'. Strawberry pollen was stored at room temperature (22 ±2°C, +4°C, -4°C and -18°C in stabile humidity conditions. Strawberry poIlen was germinated using the hanging drop method in a 20% sucrose solution. Pollen germination rate increased because of low temperature storage. Pollen stored at room temperature and +4°C, -4°C, and -18°C was kept for 8 months, about one year, and 20 months, respectively. Pollen germination rates decreased as the length of storage period increased. The reaction of all cultivars tested on the duration and temperature of storage was similar.

  9. Hydrogen storage compositions

    Science.gov (United States)

    Li, Wen; Vajo, John J.; Cumberland, Robert W.; Liu, Ping

    2011-04-19

    Compositions for hydrogen storage and methods of making such compositions employ an alloy that exhibits reversible formation/deformation of BH.sub.4.sup.- anions. The composition includes a ternary alloy including magnesium, boron and a metal and a metal hydride. The ternary alloy and the metal hydride are present in an amount sufficient to render the composition capable of hydrogen storage. The molar ratio of the metal to magnesium and boron in the alloy is such that the alloy exhibits reversible formation/deformation of BH.sub.4.sup.- anions. The hydrogen storage composition is prepared by combining magnesium, boron and a metal to prepare a ternary alloy and combining the ternary alloy with a metal hydride to form the hydrogen storage composition.

  10. Memory mass storage

    CERN Document Server

    Campardo, Giovanni; Iaculo, Massimo

    2011-01-01

    Covering all the fundamental storage technologies such as semiconductor, magnetic, optical and uncommon, this volume details their core characteristics. In addition, it includes an overview of the 'biological memory' of the human brain and its organization.

  11. Cryptography from noisy storage.

    Science.gov (United States)

    Wehner, Stephanie; Schaffner, Christian; Terhal, Barbara M

    2008-06-06

    We show how to implement cryptographic primitives based on the realistic assumption that quantum storage of qubits is noisy. We thereby consider individual-storage attacks; i.e., the dishonest party attempts to store each incoming qubit separately. Our model is similar to the model of bounded-quantum storage; however, we consider an explicit noise model inspired by present-day technology. To illustrate the power of this new model, we show that a protocol for oblivious transfer is secure for any amount of quantum-storage noise, as long as honest players can perform perfect quantum operations. Our model also allows us to show the security of protocols that cope with noise in the operations of the honest players and achieve more advanced tasks such as secure identification.

  12. Center for Hydrogen Storage.

    Science.gov (United States)

    2013-06-01

    The main goals of this project were to (1) Establish a Center for Hydrogen Storage Research at Delaware State University for the preparation and characterization of selected complex metal hydrides and the determination their suitability for hydrogen ...

  13. Hydrogen storage using borohydrides

    International Nuclear Information System (INIS)

    Bernard BONNETOT; Laetitia LAVERSENNE

    2006-01-01

    The possibilities of hydrogen storage using borohydrides are presented and discussed specially in regard of the recoverable hydrogen amount and related to the recovering conditions. A rapid analysis of storage possibilities is proposed taking in account the two main ways for hydrogen evolution: the dehydrogenation obtained through thermal decomposition or the hydrolysis of solids or solutions. The recoverable hydrogen is related to the dehydrogenation conditions and the real hydrogen useful percentage is determined for each case of use. The high temperature required for dehydrogenation even when using catalyzed compounds lead to poor outlooks for this storage way. The hydrolysis conditions direct the chemical yield of the water consuming, and this must be related to the experimental conditions which rule the storage capacity of the 'fuel' derived from the borohydride. (authors)

  14. Wet storage integrity update

    International Nuclear Information System (INIS)

    Bailey, W.J.; Johnson, A.B. Jr.

    1983-09-01

    This report includes information from various studies performed under the Wet Storage Task of the Spent Fuel Integrity Project of the Commercial Spent Fuel Management (CSFM) Program at Pacific Northwest Laboratory. An overview of recent developments in the technology of wet storage of spent water reactor fuel is presented. Licensee Event Reports pertaining to spent fuel pools and the associated performance of spent fuel and storage components during wet storage are discussed. The current status of fuel that was examined under the CSFM Program is described. Assessments of the effect of boric acid in spent fuel pool water on the corrosion and stress corrosion cracking of stainless steel and the stress corrosion cracking of stainless steel piping containing stagnant water at spent fuel pools are discussed. A list of pertinent publications is included. 84 references, 21 figures, 11 tables

  15. Cuarenta años de investigación sobre la plasticidad del músculo esquelético; conclusiones personales (artículo completo disponible en inglés

    Directory of Open Access Journals (Sweden)

    Hans Hoppeler

    2013-06-01

    Full Text Available Este es un estudio personal altamente subjetivo sobre la investigación llevada a cabo durante los últimos 50 años que documenta los fenómenos y los mecanismos de la plasticidad del tejido muscular esquelético. Enfocaré el trabajo desde una perspectiva histórica y seguiré algunos de los hilos que han despertado mi curiosidad y han guiado mi investigación a lo largo de mi carrera investigadora. Este estudio no es ni exhaustivo ni equilibrado. Representa mis intereses personales y algunos descubrimientos cruciales que han marcado mis objetivos de investigación. He tenido la suerte de llevar a cabo este estudio con colaboradores muy creativos que han sido los que han realizado la mayor parte de esta investigación. También he tenido la suerte de contar con dos tutores excepcionales, ER Weibel y C.R. Taylor, que me han apoyado durante todo el proceso guiándome y dándome consejos e, inicialmente, facilitándome la ayuda económica necesaria. Han fomentado un enfoque global y me han enseñado a combinar la investigación funcional y estructural para lograr una visión integral del rendimiento del sistema. Cuando las herramientas moleculares apropiadas pasaron a estar disponibles a finales de los 90, estas ayudaron a descubrir los mecanismos subyacentes de la plasticidad estructural y funcional del músculo previamente descrita. La idea de que el tejido muscular esquelético activo es determinante para el bienestar físico y para la salud continuará impulsando la investigación mecanicista de la plasticidad muscular en el futuro.

  16. Atividade antiviral de extratos de plantas medicinais disponíveis comercialmente frente aos herpesvírus suíno e bovino Antiviral activity of commercially available medicinal plants on suid and bovine herpesviruses

    Directory of Open Access Journals (Sweden)

    V.M. Kaziyama

    2012-01-01

    Full Text Available O presente trabalho teve como objetivo pesquisar a atividade antiviral in vitro de plantas medicinais disponíveis comercialmente sobre herpesvírus suíno (SuHV-1 e bovino (BoHV-1. As espécies adquiridas foram Mikania glomerata, Cymbopogon citratus, Equisetum arvense, Peumus boldus, Solanum paniculatum, Malva sylvestris, Piper umbellatun e Solidago microglossa. A citotoxicidade dos extratos foi avaliada na linhagem celular MDBK pelas alterações morfológicas das células e obtenção da concentração máxima não citotóxica (CMNC de cada planta. A atividade antiviral foi realizada com os extratos em suas respectivas CMNC e avaliada com base na redução do título viral e expressos em porcentagem de inibição. Os extratos aquosos de Peumus boldus e Solanum paniculatum apresentaram atividade antiviral sobre o SuHV-1 com 98% de inibição viral enquanto o de Peumus boldus inibiu apenas o BoHV-1 em 99%.This paper aims to find commercially available medicinal plants showing antiviral activity in vitro on suid and bovine herpesviruses. The following species were tested: Mikania glomerata, Cymbopogon citratus, Equisetum arvense, Peumus boldus, Solanum paniculatum, Malva sylvestris, Piper umbellatun and Solidago microglossa. The cytotoxicity was evaluated by morphological changes in cells determining the maximum not cytotoxic concentration (MNCC. The antiviral activity was evaluated by viral title reduction. The extracts from Peumus boldus and Solanum paniculatum showed antiviral activity against SuHV-1 with 98% of inhibition. The extract of Peumus boldus also showed activity against BoHV-1 with 99% of inhibition.

  17. Classificação climatológica da energia potencial disponível para a convecção na cidade de Belém-PA

    Directory of Open Access Journals (Sweden)

    Josiane Sarmento dos Santos

    2014-12-01

    Full Text Available A classificação climatológica da Energia Potencial Disponível para a Convecção (CAPE foi estudada para verificar a possibilidade de ocorrer convecção e tipo de organização em Belém-PA, Brasil, associando-a com eventos extremos de precipitação (EEPRP. Para a análise da CAPE, utilizou-se dados de radiossondagens do DTCEA e de precipitação da estação do INMET, no período de 1987 a 2011. Observou-se que a atmosfera local apresenta condições favoráveis ao desenvolvimento de convecção profunda, pois a CAPE com valores maiores que 1000 J/kg foi a mais frequente, representando 61% de todas radiossondagens. O valor de 1000 J/kg, segundo alguns autores, é o limite para convecção profunda. As classificações CAPE 2 e 3 apresentaram tendências significativas de aumento ao longo dos anos, enquanto a CAPE 1 diminuição. Essa situação provavelmente é resultado do aumento da temperatura do ar ocorrido na cidade, impactando o valor da CAPE. Os resultados também mostraram que as correlações entre a CAPE e EEPRP, a CAPE e os Índices Oceânico do Pacífico e Gradiente Inter-Hemisférico do Atlântico foram baixas. Então, a CAPE não é condição suficiente para formação de nuvens e precipitação, pois forçantes dinâmicas de meso e grande escala contribuem decisivamente para modular o clima da cidade.

  18. Análise de teses e dissertações em avaliação psicológica disponíveis na BVS-PSI Brasil

    Directory of Open Access Journals (Sweden)

    Maria Cristina Rodrigues Azevedo Joly

    Full Text Available O presente estudo objetivou verificar a produção científica de teses e dissertações em avaliação psicológica no Brasil, disponíveis na Biblioteca Virtual em Saúde do Brasil (Bvs-Psi Brasil. Foram analisados 141 resumos de teses e dissertações em avaliação psicológica referentes a estudos que tinham avaliação psicológica, psicometria, validade, precisão e testes psicológicos como palavras-chave. Os resultados revelaram que 54,6% dos resumos eram de dissertações de mestrado, 43,3%, de teses de doutorado, e 2,1% eram de teses de pós-doutorado. Destes, 19,15% foram defendidos em Universidades estabelecidas na Região Sul do País, 80,14%, no Sudeste, e 0,71%, no Nordeste. Pode-se constatar que maior concentração da produção científica de avaliação psicológica fica na Região Sudeste. Verificou-se que 60,3% tinham por objetivo buscar parâmetros psicométricos, e 27,7% tinham a finalidade de utilizar os testes para validar protocolos de intervenção, descrever habilidades específicas e estudar relações entre variáveis, e constituem a maioria dos estudos transversais. Os construtos mais estudados são a personalidade e a inteligência, e as áreas de aplicação em que se utiliza mais avaliação psicológica são a clínica e a escolar, de acordo com os resultados do presente estudo.

  19. Spent fuel storage requirements

    International Nuclear Information System (INIS)

    Fletcher, J.

    1982-06-01

    Spent fuel storage requirements, as projected through the year 2000 for U.S. LWRs, were calculated using information supplied by the utilities reflecting plant status as of December 31, 1981. Projections through the year 2000 combined fuel discharge projections of the utilities with the assumed discharges of typical reactors required to meet the nuclear capacity of 165 GWe projected by the Energy Information Administration (EIA) for the year 2000. Three cases were developed and are summarized. A reference case, or maximum at-reactor (AR) capacity case, assumes that all reactor storage pools are increased to their maximum capacities as estimated by the utilities for spent fuel storage utilizing currently licensed technologies. The reference case assumes no transshipments between pools except as currently licensed by the Nuclear Regulatory Commission (NRC). This case identifies an initial requirement for 13 MTU of additional storage in 1984, and a cumulative requirement for 14,490 MTU additional storage in the year 2000. The reference case is bounded by two alternative cases. One, a current capacity case, assumes that only those pool storage capacity increases currently planned by the operating utilities will occur. The second, or maximum capacity with transshipment case, assumes maximum development of pool storage capacity as described above and also assumes no constraints on transshipment of spent fuel among pools of reactors of like type (BWR, PWR) within a given utility. In all cases, a full core discharge capability (full core reserve or FCR) is assumed to be maintained for each reactor, except that only one FCR is maintained when two reactors share a common pool. For the current AR capacity case the indicated storage requirements in the year 2000 are indicated to be 18,190 MTU; for the maximum capacity with transshipment case they are 11,320 MTU

  20. Flywheel energy storage; Schwungmassenspeicher

    Energy Technology Data Exchange (ETDEWEB)

    Bornemann, H.J. [Forschungszentrum Karlsruhe GmbH Technik und Umwelt (Germany)

    1996-12-31

    Energy storages may be chemical systems such as batteries, thermal systems such as hot-water tanks, electromagnetic systems such as capacitors and coils, or mechanical systems such as pumped storage power systems or flywheel energy storages. In flywheel energy storages the energy is stored in the centrifugal mass in the form of kinetic energy. This energy can be converted to electricity via a motor/generator unit and made available to the consumer. The introduction of magnetic bearings has greatly enhanced the potential of flywheel energy storages. As there is no contact between the moving parts of magnetic bearings, this technology provides a means of circumventing the engineering and operational problems involved in the we of conventional bearings (ball, roller, plain, and gas bearings). The advantages of modern flywheel energy storages over conventional accumulators are an at least thousandfold longer service life, low losses during long-time storage, greater power output in the case of short-time storage, and commendable environmental benignity. (orig./HW) [Deutsch] Als Enegiespeicher kommen chemische Systeme, z.B. Batterien, thermische Systeme, z.B. Warmwassertanks, elektromagnetische Systeme, z.B. Kondensatoren und Spulen, sowie mechanische Systeme, z.B. Pumpspeicherwerke und Schwungmassenspeicher in Frage. In einem Schwungmassenspeicher wird Energie in Form von kinetischer Energie in der Schwungmasse gespeichert. Ueber eine Moter/Generator Einheit wird diese Energie in elektrischen Strom umgewandelt und dem Verbraucher zugefuehrt. Mit der Einfuehrung von magnetischen Lagern konnte die Leistungsfaehigkeit von Schwungmassenspeichern erheblich gesteigert werden. Da in einem Magnetlager keine Beruehrung zwischen sich bewegenden Teilen besteht, wird ein Grossteil der mit dem Einsatz konventioneller Lager (Kugel- und Rollenlager, Gleitlager und Gaslager) verbundenen ingenieurtechnischen und betriebstechnischen Probleme vermieden. Die Vorteile von modernen

  1. Optimization of Munitions Storage.

    Science.gov (United States)

    1979-12-01

    zones of land around each facility place a significant economic cost on the storage of munitions (Schreyer, 1970: 1). Munitions storage is a subject...ADDTOT, BTOTAL 353 REAL MPH,MW ,MPD, MPU ,4,MPNEW,MCD 354 IF (SW2.NE.0) GO TO 1 355 SW2 - 1 356 WRITE (6,2) 357 GO TO 3 358 1 IF (REC.EQ.0) GO TO 4 359 IF

  2. Spent fuel storage

    International Nuclear Information System (INIS)

    Huppert

    1976-01-01

    To begin with, the author explains the reasons for intermediate storage of fuel elements in nuclear power stations and in a reprocessing plant and gives the temperature and radioactivity curves of LWR fuel elements after removal from the reactor. This is followed by a description of the facilities for fuel element storage in a reprocessing plant and of their functions. Futher topics are criticality and activity control, the problem of cooling time and safety systems. (HR) [de

  3. Analog storage integrated circuit

    Science.gov (United States)

    Walker, J.T.; Larsen, R.S.; Shapiro, S.L.

    1989-03-07

    A high speed data storage array is defined utilizing a unique cell design for high speed sampling of a rapidly changing signal. Each cell of the array includes two input gates between the signal input and a storage capacitor. The gates are controlled by a high speed row clock and low speed column clock so that the instantaneous analog value of the signal is only sampled and stored by each cell on coincidence of the two clocks. 6 figs.

  4. Annual Report: Carbon Storage

    Energy Technology Data Exchange (ETDEWEB)

    Strazisar, Brian [National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States); Guthrie, George [National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)

    2012-09-30

    Activities include laboratory experimentation, field work, and numerical modeling. The work is divided into five theme areas (or first level tasks) that each address a key research need: Flow Properties of Reservoirs and Seals, Fundamental Processes and Properties, Estimates of Storage Potential, Verifying Storage Performance, and Geospatial Data Resources. The project also includes a project management effort which coordinates the activities of all the research teams.

  5. Evaluación del fósforo disponible mediante tres métodos en distintos suelos y manejos productivos Evaluation of phosphorus available by three methods in different soils and productive managements

    Directory of Open Access Journals (Sweden)

    Carolina Fernández López

    2008-07-01

    Full Text Available El fósforo (P es un nutriente de baja solubilidad y movilidad en los suelos, que se encuentra generalmente en situaciones de deficiencia para el crecimiento vegetal, y sólo puede ser repuesto mediante la fertilización. Debido a la variabilidad en la evaluación de la disponibilidad de P en el suelo, se realizó este trabajo con el objetivo de: a comparar entre sí dos de los métodos más comunes de evaluación de disponibilidad de P del suelo (Bray I y Olsen, y el método de la tirita de papel de filtro embebida en óxido de hierro (Strip; b estimar cual de los métodos se relaciona mejor con algunas variables vegetales ante distintas condiciones de manejo y tipos de suelos. Se estudiaron suelos de los órdenes Entisol, Alfisol y Vertisol de la provincia de Corrientes en condición natural o cultivado con Citrus, arroz o pasturas, respectivamente. Se determinaron algunas propiedades físicas y químicas, verificando la similitud textural entre los suelos Testigos y Cultivados. Se realizó un ensayo en invernadero de cada uno de los seis suelos con once niveles de P (entre 0-200 mg P por kg de suelo y luego se los incubó durante 25 días a 28 °C. Al finalizar la incubación se determinó el P disponible mediante los procedimientos recomendados para los métodos de Bray I, Olsen y Strip. Se sembró "rye grass" (Lolium perenne que se cosechó a los 45 días de la siembra para cuantificar la materia seca aérea y análisis de P en tejido. Los resultados obtenidos en este trabajo sugieren que todos los métodos de evaluación de la disponibilidad de P del suelo describieron de manera adecuada y significativa las relaciones entre MS (R² entre 0,35 a 0,95, y valores extremos para el Vertisol y el Entisol, %P (con R² entre 0,92 y 0,95 y P absorbido (R² entre 0,93 y 0,96 y con muy pocas diferencias entre los suelos con el P extractado por los tres métodos. Sin embargo, la bondad de los ajustes fue diferente entre suelos, extractantes y manejos

  6. Storage of nuclear wastes

    International Nuclear Information System (INIS)

    Ahlstroem, P.E.

    1988-01-01

    The Swedish system of handling and storage of nuclear wastes is well-developed. Existing plants and systems provide great freedom of action and flexibility regarding future development and decisions of ultimate storage of the spent fuel. The interim storage in CLAB - Central interim storage facility for spent nuclear fuel - could continue without any safety related problems for more than 40 years. In practice the choice of ultimate treatment system is not locked until the encapsulation of the fuel starts. At the same time it is of importance that the generation benefiting by the nuclear power production also be responsible for the development of the ultimate storage system and not unnecessarily postpones important decisions. The ultimate storage system for spent fuel could and should be developed within existing schedule. At the same time is should be worked out to provide coming generations with possibilities to do the type of supervision they like without maintenance and supervision requiring to become a prerequisite for a safe function. (O.S.)

  7. Energy Storage Systems

    Science.gov (United States)

    Elliott, David

    2017-07-01

    As renewable energy use expands there will be a need to develop ways to balance its variability. Storage is one of the options. Presently the main emphasis is for systems storing electrical power in advanced batteries (many of them derivatives of parallel developments in the electric vehicle field), as well as via liquid air storage, compressed air storage, super-capacitors and flywheels, and, the leader so far, pumped hydro reservoirs. In addition, new systems are emerging for hydrogen generation and storage, feeding fuel cell power production. Heat (and cold) is also a storage medium and some systems exploit thermal effects as part of wider energy management activity. Some of the more exotic ones even try to use gravity on a large scale. This short book looks at all the options, their potentials and their limits. There are no clear winners, with some being suited to short-term balancing and others to longer-term storage. The eventual mix adopted will be shaped by the pattern of development of other balancing measures, including smart-grid demand management and super-grid imports and exports.

  8. Superconducting magnetic energy storage

    International Nuclear Information System (INIS)

    Rogers, J.D.; Boenig, H.J.

    1978-01-01

    Superconducting inductors provide a compact and efficient means of storing electrical energy without an intermediate conversion process. Energy storage inductors are under development for diurnal load leveling and transmission line stabilization in electric utility systems and for driving magnetic confinement and plasma heating coils in fusion energy systems. Fluctuating electric power demands force the electric utility industry to have more installed generating capacity than the average load requires. Energy storage can increase the utilization of base-load fossil and nuclear power plants for electric utilities. Superconducting magnetic energy storage (SMES) systems, which will store and deliver electrical energy for load leveling, peak shaving, and the stabilization of electric utility networks are being developed. In the fusion area, inductive energy transfer and storage is also being developed by LASL. Both 1-ms fast-discharge theta-pinch and 1-to-2-s slow tokamak energy transfer systems have been demonstrated. The major components and the method of operation of an SMES unit are described, and potential applications of different size SMES systems in electric power grids are presented. Results are given for a 1-GWh reference design load-leveling unit, for a 30-MJ coil proposed stabilization unit, and for tests with a small-scale, 100-kJ magnetic energy storage system. The results of the fusion energy storage and transfer tests are also presented. The common technology base for the systems is discussed

  9. Secure Storage Architectures

    Energy Technology Data Exchange (ETDEWEB)

    Aderholdt, Ferrol [Tennessee Technological University; Caldwell, Blake A [ORNL; Hicks, Susan Elaine [ORNL; Koch, Scott M [ORNL; Naughton, III, Thomas J [ORNL; Pogge, James R [Tennessee Technological University; Scott, Stephen L [Tennessee Technological University; Shipman, Galen M [ORNL; Sorrillo, Lawrence [ORNL

    2015-01-01

    The purpose of this report is to clarify the challenges associated with storage for secure enclaves. The major focus areas for the report are: - review of relevant parallel filesystem technologies to identify assets and gaps; - review of filesystem isolation/protection mechanisms, to include native filesystem capabilities and auxiliary/layered techniques; - definition of storage architectures that can be used for customizable compute enclaves (i.e., clarification of use-cases that must be supported for shared storage scenarios); - investigate vendor products related to secure storage. This study provides technical details on the storage and filesystem used for HPC with particular attention on elements that contribute to creating secure storage. We outline the pieces for a a shared storage architecture that balances protection and performance by leveraging the isolation capabilities available in filesystems and virtualization technologies to maintain the integrity of the data. Key Points: There are a few existing and in-progress protection features in Lustre related to secure storage, which are discussed in (Chapter 3.1). These include authentication capabilities like GSSAPI/Kerberos and the in-progress work for GSSAPI/Host-keys. The GPFS filesystem provides native support for encryption, which is not directly available in Lustre. Additionally, GPFS includes authentication/authorization mechanisms for inter-cluster sharing of filesystems (Chapter 3.2). The limitations of key importance for secure storage/filesystems are: (i) restricting sub-tree mounts for parallel filesystem (which is not directly supported in Lustre or GPFS), and (ii) segregation of hosts on the storage network and practical complications with dynamic additions to the storage network, e.g., LNET. A challenge for VM based use cases will be to provide efficient IO forwarding of the parallel filessytem from the host to the guest (VM). There are promising options like para-virtualized filesystems to

  10. Spent nuclear fuel storage

    International Nuclear Information System (INIS)

    Romanato, Luiz Sergio

    2005-01-01

    When a country becomes self-sufficient in part of the nuclear cycle, as production of fuel that will be used in nuclear power plants for energy generation, it is necessary to pay attention for the best method of storing the spent fuel. Temporary storage of spent nuclear fuel is a necessary practice and is applied nowadays all over the world, so much in countries that have not been defined their plan for a definitive repository, as well for those that already put in practice such storage form. There are two main aspects that involve the spent fuels: one regarding the spent nuclear fuel storage intended to reprocessing and the other in which the spent fuel will be sent for final deposition when the definitive place is defined, correctly located, appropriately characterized as to several technical aspects, and licentiate. This last aspect can involve decades of studies because of the technical and normative definitions at a given country. In Brazil, the interest is linked with the storage of spent fuels that will not be reprocessed. This work analyses possible types of storage, the international panorama and a proposal for future construction of a spent nuclear fuel temporary storage place in the country. (author)

  11. Neutrino Signals in Electron-Capture Storage-Ring Experiments

    Directory of Open Access Journals (Sweden)

    Avraham Gal

    2016-06-01

    Full Text Available Neutrino signals in electron-capture decays of hydrogen-like parent ions P in storage-ring experiments at GSI are reconsidered, with special emphasis placed on the storage-ring quasi-circular motion of the daughter ions D in two-body decays P → D + ν e . It is argued that, to the extent that daughter ions are detected, these detection rates might exhibit modulations with periods of order seconds, similar to those reported in the GSI storage-ring experiments for two-body decay rates. New dedicated experiments in storage rings, or using traps, could explore these modulations.

  12. SOLID-STATE STORAGE DEVICE WITH PROGRAMMABLE PHYSICAL STORAGE ACCESS

    DEFF Research Database (Denmark)

    2017-01-01

    a storage device action request, and the storage device evaluating a first rule of the one or more rules by determining if the received request fulfills request conditions comprised in the first rule, and in the affirmative the storage device performing request actions comprised in the first rule......Embodiments of the present invention includes a method of operating a solid-state storage device, comprising a storage device controller in the storage device receiving a set of one or more rules, each rule comprising (i) one or more request conditions to be evaluated for a storage device action...... request received from a host computer, and (ii) one or more request actions to be performed on a physical address space of a non-volatile storage unit in the solid-state storage device in case the one or more request conditions are fulfilled; the method further comprises: the storage device receiving...

  13. Developing new transportable storage casks for interim dry storage

    International Nuclear Information System (INIS)

    Hayashi, K.; Iwasa, K.; Araki, K.; Asano, R.

    2004-01-01

    Transportable storage metal casks are to be consistently used during transport and storage for AFR interim dry storage facilities planning in Japan. The casks are required to comply with the technical standards of regulations for both transport (hereinafter called ''transport regulation'') and storage (hereafter called ''storage regulation'') to maintain safety functions (heat transfer, containment, shielding and sub-critical control). In addition to these requirements, it is not planned in normal state to change the seal materials during storage at the storage facility, therefore it is requested to use same seal materials when the casks are transported after storage period. The dry transportable storage metal casks that satisfy the requirements have been developed to meet the needs of the dry storage facilities. The basic policy of this development is to utilize proven technology achieved from our design and fabrication experience, to carry out necessary verification for new designs and to realize a safe and rational design with higher capacity and efficient fabrication

  14. GAS STORAGE TECHNOLOGY CONSORTIUM

    Energy Technology Data Exchange (ETDEWEB)

    Robert W. Watson

    2004-10-18

    Gas storage is a critical element in the natural gas industry. Producers, transmission and distribution companies, marketers, and end users all benefit directly from the load balancing function of storage. The unbundling process has fundamentally changed the way storage is used and valued. As an unbundled service, the value of storage is being recovered at rates that reflect its value. Moreover, the marketplace has differentiated between various types of storage services, and has increasingly rewarded flexibility, safety, and reliability. The size of the natural gas market has increased and is projected to continue to increase towards 30 trillion cubic feet (TCF) over the next 10 to 15 years. Much of this increase is projected to come from electric generation, particularly peaking units. Gas storage, particularly the flexible services that are most suited to electric loads, is critical in meeting the needs of these new markets. In order to address the gas storage needs of the natural gas industry, an industry-driven consortium was created--the Gas Storage Technology Consortium (GSTC). The objective of the GSTC is to provide a means to accomplish industry-driven research and development designed to enhance operational flexibility and deliverability of the Nation's gas storage system, and provide a cost effective, safe, and reliable supply of natural gas to meet domestic demand. To accomplish this objective, the project is divided into three phases that are managed and directed by the GSTC Coordinator. The first phase, Phase 1A, was initiated on September 30, 2003, and was completed on March 31, 2004. Phase 1A of the project included the creation of the GSTC structure, development and refinement of a technical approach (work plan) for deliverability enhancement and reservoir management. This report deals with Phase 1B and encompasses the period July 1, 2004, through September 30, 2004. During this time period there were three main activities. First was the

  15. Aboveground storage tanks

    International Nuclear Information System (INIS)

    Rizzo, J.A.

    1992-01-01

    With the 1988 promulgation of the comprehensive Resource Conservation and Recovery Act (RCRA) regulations for underground storage of petroleum and hazardous substances, many existing underground storage tank (UST) owners have been considering making the move to aboveground storage. While on the surface, this may appear to be the cure-all to avoiding the underground leakage dilemma, there are many other new and different issues to consider with aboveground storage. The greatest misconception is that by storing materials above ground, there is no risk of subsurface environmental problems. it should be noted that with the aboveground storage tank (AGST) systems, there is still considerable risk of environmental contamination, either by the failure of onground tank bottoms or the spillage of product onto the ground surface where it subsequently finds its way to the ground water. In addition, there are added safety concerns that must be addressed. So what are the other specific areas of concern besides environmental to be addressed when making the decision between underground and aboveground tanks? The primary issues that will be addressed in this paper are: Safety, Product Losses, Cost Comparison of USTs vs AGSTs, Space Availability/Accessibility, Precipitation Handling, Aesthetics and Security, Pending and Existing Regulations

  16. Radioactive waste storage issues

    International Nuclear Information System (INIS)

    Kunz, D.E.

    1994-01-01

    In the United States we generate greater than 500 million tons of toxic waste per year which pose a threat to human health and the environment. Some of the most toxic of these wastes are those that are radioactively contaminated. This thesis explores the need for permanent disposal facilities to isolate radioactive waste materials that are being stored temporarily, and therefore potentially unsafely, at generating facilities. Because of current controversies involving the interstate transfer of toxic waste, more states are restricting the flow of wastes into - their borders with the resultant outcome of requiring the management (storage and disposal) of wastes generated solely within a state's boundary to remain there. The purpose of this project is to study nuclear waste storage issues and public perceptions of this important matter. Temporary storage at generating facilities is a cause for safety concerns and underscores, the need for the opening of permanent disposal sites. Political controversies and public concern are forcing states to look within their own borders to find solutions to this difficult problem. Permanent disposal or retrievable storage for radioactive waste may become a necessity in the near future in Colorado. Suitable areas that could support - a nuclear storage/disposal site need to be explored to make certain the health, safety and environment of our citizens now, and that of future generations, will be protected

  17. High temperature storage loop :

    Energy Technology Data Exchange (ETDEWEB)

    Gill, David Dennis; Kolb, William J.

    2013-07-01

    A three year plan for thermal energy storage (TES) research was created at Sandia National Laboratories in the spring of 2012. This plan included a strategic goal of providing test capability for Sandia and for the nation in which to evaluate high temperature storage (>650ÀC) technology. The plan was to scope, design, and build a flow loop that would be compatible with a multitude of high temperature heat transfer/storage fluids. The High Temperature Storage Loop (HTSL) would be reconfigurable so that it was useful for not only storage testing, but also for high temperature receiver testing and high efficiency power cycle testing as well. In that way, HTSL was part of a much larger strategy for Sandia to provide a research and testing platform that would be integral for the evaluation of individual technologies funded under the SunShot program. DOEs SunShot program seeks to reduce the price of solar technologies to 6/kWhr to be cost competitive with carbon-based fuels. The HTSL project sought to provide evaluation capability for these SunShot supported technologies. This report includes the scoping, design, and budgetary costing aspects of this effort

  18. Energy storage connection system

    Science.gov (United States)

    Benedict, Eric L.; Borland, Nicholas P.; Dale, Magdelena; Freeman, Belvin; Kite, Kim A.; Petter, Jeffrey K.; Taylor, Brendan F.

    2012-07-03

    A power system for connecting a variable voltage power source, such as a power controller, with a plurality of energy storage devices, at least two of which have a different initial voltage than the output voltage of the variable voltage power source. The power system includes a controller that increases the output voltage of the variable voltage power source. When such output voltage is substantially equal to the initial voltage of a first one of the energy storage devices, the controller sends a signal that causes a switch to connect the variable voltage power source with the first one of the energy storage devices. The controller then causes the output voltage of the variable voltage power source to continue increasing. When the output voltage is substantially equal to the initial voltage of a second one of the energy storage devices, the controller sends a signal that causes a switch to connect the variable voltage power source with the second one of the energy storage devices.

  19. Technology Roadmap: Energy Storage

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2014-03-01

    Energy storage technologies are valuable components in most energy systems and could be an important tool in achieving a low-carbon future. These technologies allow for the decoupling of energy supply and demand, in essence providing a valuable resource to system operators. There are many cases where energy storage deployment is competitive or near-competitive in today's energy system. However, regulatory and market conditions are frequently ill-equipped to compensate storage for the suite of services that it can provide. Furthermore, some technologies are still too expensive relative to other competing technologies (e.g. flexible generation and new transmission lines in electricity systems). One of the key goals of this new roadmap is to understand and communicate the value of energy storage to energy system stakeholders. This will include concepts that address the current status of deployment and predicted evolution in the context of current and future energy system needs by using a ''systems perspective'' rather than looking at storage technologies in isolation.

  20. Nuclear fuel storage facility

    International Nuclear Information System (INIS)

    Matsumoto, Takashi; Isaka, Shinji.

    1987-01-01

    Purpose: To increase the spent fuel storage capacity and reduce the installation cost in a nuclear fuel storage facility. Constitution: Fuels handled in the nuclear fuel storage device of the present invention include the following four types: (1) fresh fuels, (2) 100 % reactor core charged fuels, (3) spent fuels just after taking out and (4) fuels after a certain period (for example one half-year) from taking out of the reactor. Reactivity is high for the fuels (1), and some of fuels (2), while low in the fuels (3) (4), Source intensity is strong for the fuels (3) and some of the fuels (2), while it is low for the fuels (1) and (4). Taking notice of the fact that the reactivity, radioactive source intensity and generated after heat are different in the respective fuels, the size of the pool and the storage capacity are increased by the divided storage control. While on the other hand, since the division is made in one identical pool, the control method becomes important, and the working range is restricted by means of a template, interlock, etc., the operation mode of the handling machine is divided into four, etc. for preventing errors. (Kamimura, M.)

  1. WWER spent fuel storage

    Energy Technology Data Exchange (ETDEWEB)

    Bower, C C; Lettington, C [GEC Alsthom Engineering Systems Ltd., Whetstone (United Kingdom)

    1994-12-31

    Selection criteria for PAKS NPP dry storage system are outlined. They include the following: fuel temperature in storage; sub-criticality assurance (avoidance of criticality for fuel in the unirradiated condition without having to take credit for burn-up); assurance of decay heat removal; dose uptake to the operators and public; protection of environment; volume of waste produced during operation and decommissioning; physical protection of stored irradiated fuel assemblies; IAEA safeguards assurance; storage system versus final disposal route; cost of construction and extent of technology transfer to Hungarian industry. Several available systems are evaluated against these criteria, and as a result the GEC ALSTHOM Modular Vault Dry Store (MVDS) system has been selected. The MVDS is a passively cooled dry storage facility. Its most important technical, safety, licensing and technology transfer characteristics are outlined. On the basis of the experience gained some key questions and considerations related to the East European perspective in the field of spent fuel storage are discussed. 8 figs.

  2. WWER spent fuel storage

    International Nuclear Information System (INIS)

    Bower, C.C.; Lettington, C.

    1994-01-01

    Selection criteria for PAKS NPP dry storage system are outlined. They include the following: fuel temperature in storage; sub-criticality assurance (avoidance of criticality for fuel in the unirradiated condition without having to take credit for burn-up); assurance of decay heat removal; dose uptake to the operators and public; protection of environment; volume of waste produced during operation and decommissioning; physical protection of stored irradiated fuel assemblies; IAEA safeguards assurance; storage system versus final disposal route; cost of construction and extent of technology transfer to Hungarian industry. Several available systems are evaluated against these criteria, and as a result the GEC ALSTHOM Modular Vault Dry Store (MVDS) system has been selected. The MVDS is a passively cooled dry storage facility. Its most important technical, safety, licensing and technology transfer characteristics are outlined. On the basis of the experience gained some key questions and considerations related to the East European perspective in the field of spent fuel storage are discussed. 8 figs

  3. The methods of hydrogen storage

    International Nuclear Information System (INIS)

    Joubert, J.M.; Cuevas, F.; Latroche, M.; Percheron-Guegan, A.

    2005-01-01

    Hydrogen may be an excellent energy vector owing to its high specific energy. Its low density is however a serious drawback for its storage. Three techniques exist to store hydrogen. Storage under pressure is now performed in composite tanks under pressures around 700 bar. Liquid storage is achieved at cryogenic temperatures. Solid storage is possible in reversible metal hydrides or on high surface area materials. The three storage means are compared in terms of performance, energetic losses and risk. (authors)

  4. Federal Interim Storage program

    International Nuclear Information System (INIS)

    Johnson, E.R.; McBride, J.A.

    1984-01-01

    The DOE has developed a program for providing Federal Interim Storage servies for spent nuclear fuel which complies with the requirements of the Nuclear Waste Policy Act of 1982. Although very little constructive activity in providing storage facilities can be undertaken by DOE until fuel has been certified by NRC as eligible for FIS, DOE planning and background information is such as to provide reasonable assurance that its obligations can be fulfilled when the required certifications have been issued. A fee structure providing fuel recovery of all costs associated with the FIS program, as required by the Act, has been developed. It provides for an equitable distribution of costs among users, based on the quantity of fuel requiring storage

  5. Evolution of clustered storage

    CERN Multimedia

    CERN. Geneva; Van de Vyvre, Pierre

    2007-01-01

    The session actually featured two presentations: * Evolution of clustered storage by Lance Hukill, Quantum Corporation * ALICE DAQ - Usage of a Cluster-File System: Quantum StorNext by Pierre Vande Vyvre, CERN-PH the second one prepared at short notice by Pierre (thanks!) to present how the Quantum technologies are being used in the ALICE experiment. The abstract to Mr Hukill's follows. Clustered Storage is a technology that is driven by business and mission applications. The evolution of Clustered Storage solutions starts first at the alignment between End-users needs and Industry trends: * Push-and-Pull between managing for today versus planning for tomorrow * Breaking down the real business problems to the core applications * Commoditization of clients, servers, and target devices * Interchangeability, Interoperability, Remote Access, Centralized control * Oh, and yes, there is a budget and the "real world" to deal with This presentation will talk through these needs and trends, and then ask the question, ...

  6. Costs of Archival Storage

    DEFF Research Database (Denmark)

    Nielsen, Anders Bo; Thirifays, Alex; Kejser, Ulla Bøgvad

    2012-01-01

    to determine the costs of establishing and maintaining a preservation solution destined for long-term preservation of digital materials and to develop a tool capable of doing this operation. In order to fulfill the purposes, the project employed a combination of own and external experience as well as the OAIS......This paper presents an analysis of the cost of archival storage. The study is part of a project conducted by The Danish National Archives, The Royal Library, and The State and University Library to develop a generic cost model for digital preservation (CMDP). The purposes of the study were...... Reference Model as a framework to fully understand and identify the cost critical activities of bit-preservation as described in Archival Storage. We found that the costs of Archival Storage are obviously closely linked to the data volume, but also to the required preservation quality, especially...

  7. Plutonium storage phenomenology

    International Nuclear Information System (INIS)

    Szempruch, R.

    1995-12-01

    Plutonium has been produced, handled, and stored at Department of Energy (DOE) facilities since the 1940s. Many changes have occurred during the last 40 years in the sources, production demands, and end uses of plutonium. These have resulted in corresponding changes in the isotopic composition as well as the chemical and physical forms of the processed and stored plutonium. Thousands of ordinary food pack tin cans have been used successfully for many years to handle and store plutonium. Other containers have been used with equal success. This paper addressees the exceptions to this satisfactory experience. To aid in understanding the challenges of handling plutonium for storage or immobilization the lessons learned from past storage experience and the necessary countermeasures to improve storage performance are discussed

  8. Manejo da água disponível no solo e adubação fosfatada: efeito sobre a cultura do milho Management of available soil water and phosphorus fertilization: effect on corn crop

    Directory of Open Access Journals (Sweden)

    Wagner W. de A. Alves

    2002-01-01

    Full Text Available Para o presente estudo conduziu-se um ensaio em casa-de-vegetação, no Departamento de Solo e Engenharia Rural do Centro de Ciências Agrárias da Universidade Federal da Paraíba, Areia, PB, com o propósito de se avaliar quatro doses de fósforo (0, 40, 80 e 120 kg ha-1 de P2O5 e quatro níveis de água no solo (20, 40, 60 e 80% da água disponível sobre algumas características da cultura do milho (Zea mays L.. Usou-se o delineamento blocos ao acaso em esquema fatorial 4 x 4, com três repetições. A unidade experimental foi representada por um vaso plástico com 9 kg de solo coletado na profundidade de 0 a 20 cm do perfil de um Latossolo Amarelo e, segundo a análise de variância, ocorreu efeito altamente significativo (p This study was conducted under greenhouse conditions at 'Centro de Ciências Agrárias' of 'Universidade Federal da Paraíba', located in Areia, PB, Brazil. The main objective was to evaluate the effect of four doses of phosphorus (0, 40, 80 and 120 kg ha-1 of P2O5, and of four levels of available soil water (20, 40, 60 and 80% on some characteristics of corn (Zea mays L. crop. The experiment was carried out in a randomized block using a 4 x 4 factorial scheme, with three replications. The experimental unit was represented by a plastic recipient with 9 kg of soil of the superficial layer (0 - 20 cm of Oxisol. The analysis of variance showed significant effect (p < 0.01 for the phosphorus treatments as well as for the levels of the available soil water on total dry biomass of the aerial parts, evapotranspiration and the phosphorus content of the dry biomass. The necessity of a minimal value of 40% of available soil water for the corn crop was observed to obtain the response of phosphorus doses applied to soil. A significant effect (p < 0.01 of the interaction between phosphorus and available water on phosphorus content in the biomass of aerial part of the crop was also notable.

  9. Avaliação de chupetas disponíveis no mercado nacional segundo os requisitos da ABNT e ANVISA = Evaluation of the pacifers available in the nacional market following the abnt and anvisa requisitions

    Directory of Open Access Journals (Sweden)

    Lima, Cláudia Batista Vieira

    2007-01-01

    Full Text Available Este trabalho objetivou avaliar chupetas disponíveis no mercado nacional segundo requisitos definidos pela legislação vigente. A amostra constou de 31 tipos de 6 marcas comerciais nacionais de chupetas, sendo para cada uma adquiridas 3 exemplares de lotes diferentes. Foi analisada descritivamente a adequação ou não dos aspectos: bico, escudo, botão, pino, argola e embalagem, atendendo aos critérios de construção de chupetas definidos pela NBR 10334/2003 da ABNT e a Resolução nº 221 da ANVISA. As chupetas foram divididas em grupos (G, conforme as características do bico: G1 – universal 6 meses; G5 – convencional > 6 meses; G6 – ortodôntica > 6 meses. Verificou-se a inadequação nos itens: A – comprimento do bico; B – embalagem segundo a NBR; C – embalagem segundo a ANVISA. O percentual de inadequação encontrado para os grupos foi: A: G2 – 20%, G6 – 11,1%; B: G2 – 40%, G3 – 33,3%, G5 – 40%, G6 – 33,3%; C: G2 – 20%, G3 – 33,3%, G4 – 33,3%, G5 – 20%, G6 – 22,2%. Para os demais itens avaliados: material e forma do bico; concavidade do escudo, quantidade e diâmetro dos furos, distância do furo ao bico e à borda externa, distância entre os furos, tamanho do escudo; projeção do botão; orifício de ventilação e projeção do pino e largura e comprimento da argola constataram- se adequação para as chupetas analisadas. Conclui-se que a maioria das chupetas se apresentou adequada para os requisitos de construção, sendo a inadequação freqüentemente registrada no item embalagem

  10. Extended storage of spent fuel

    International Nuclear Information System (INIS)

    1992-10-01

    This document is the final report on the IAEA Co-ordinated Research Programme on the Behaviour of Spent Fuel and Storage Facility Components during Long Term Storage (BEFAST-II, 1986-1991). It contains the results on wet and dry spent fuel storage technologies obtained from 16 organizations representing 13 countries who participated in the co-ordinated research programme. Considerable quantities of spent fuel continue to arise and accumulate. Many countries are investigating the option of extended spent fuel storage prior to reprocessing or fuel disposal. Wet storage continues to predominate as an established technology with the construction of additional away-from-reactor storage pools. However, dry storage is increasingly used with most participants considering dry storage concepts for the longer term. Depending on the cladding type options of dry storage in air or inert gas are proposed. Dry storage is becoming widely used as a supplement to wet storage for zirconium alloy clad oxide fuels. Storage periods as long as under wet conditions appear to be feasible. Dry storage will also continue to be used for Al clad and Magnox type fuel. Enhancement of wet storage capacity will remain an important activity. Rod consolidation to increase wet storage capacity will continue in the UK and is being evaluated for LWR fuel in the USA, and may start in some other countries. High density storage racks have been successfully introduced in many existing pools and are planned for future facilities. For extremely long wet storage (≥50 years), there is a need to continue work on fuel integrity investigations and LWR fuel performance modelling. it might be that pool component performance in some cases could be more limiting than the FA storage performance. It is desirable to make concerted efforts in the field of corrosion monitoring and prediction of fuel cladding and poll component behaviour in order to maintain good experience of wet storage. Refs, figs and tabs

  11. Electrochemical energy storage

    CERN Document Server

    Tarascon, Jean-Marie

    2015-01-01

    The electrochemical storage of energy has become essential in assisting the development of electrical transport and use of renewable energies. French researchers have played a key role in this domain but Asia is currently the market leader. Not wanting to see history repeat itself, France created the research network on electrochemical energy storage (RS2E) in 2011. This book discusses the launch of RS2E, its stakeholders, objectives, and integrated structure that assures a continuum between basic research, technological research and industries. Here, the authors will cover the technological

  12. Nuclear fuel storage

    International Nuclear Information System (INIS)

    Bevilacqua, F.

    1979-01-01

    A method and apparatus for the storage of fuel in a stainless steel egg crate structure within a storage pool are described. Fuel is initially stored in a checkerboard pattern or in each opening if the fuel is of low enrichment. Additional fuel (or fuel of higher enrichment) is later stored by adding stainless steel angled plates within each opening, thereby forming flux traps between the openings. Still higher enrichment fuel is later stored by adding poison plates either with or without the stainless steel angles. 8 claims

  13. Proton storage rings

    International Nuclear Information System (INIS)

    Rau, R.R.

    1978-04-01

    A discussion is given of proton storage ring beam dynamic characteristics. Topics considered include: (1) beam energy; (2) beam luminosity; (3) limits on beam current; (4) beam site; (5) crossing angle; (6) beam--beam interaction; (7) longitudinal instability; (8) effects of scattering processes; (9) beam production; and (10) high magnetic fields. Much of the discussion is related to the design parameters of ISABELLE, a 400 x 400 GeV proton---proton intersecting storage accelerator to be built at Brookhaven National Laboratory

  14. CHEMICAL STORAGE: MYTHS VERSUS REALITY

    International Nuclear Information System (INIS)

    Simmons, F.

    2007-01-01

    A large number of resources explaining proper chemical storage are available. These resources include books, databases/tables, and articles that explain various aspects of chemical storage including compatible chemical storage, signage, and regulatory requirements. Another source is the chemical manufacturer or distributor who provides storage information in the form of icons or color coding schemes on container labels. Despite the availability of these resources, chemical accidents stemming from improper storage, according to recent reports (1) (2), make up almost 25% of all chemical accidents. This relatively high percentage of chemical storage accidents suggests that these publications and color coding schemes although helpful, still provide incomplete information that may not completely mitigate storage risks. This manuscript will explore some ways published storage information may be incomplete, examine the associated risks, and suggest methods to help further eliminate chemical storage risks

  15. Kinetic energy storage system

    Energy Technology Data Exchange (ETDEWEB)

    Jaeggi, M.; Folini, P.

    1983-09-03

    A flywheel system for the purpose of energy storage in decentral solar- or wind energy plants is introduced. The system comprises a rotor made out of plastic fibre, a motor/generator serving as electro-mechanical energy converter and a frequency-voltage transformer serving as electric adapter. The storable energy quantity amounts to several kWh.

  16. Solar Energy: Heat Storage.

    Science.gov (United States)

    Knapp, Henry H., III

    This module on heat storage is one of six in a series intended for use as supplements to currently available materials on solar energy and energy conservation. Together with the recommended texts and references (sources are identified), these modules provide an effective introduction to energy conservation and solar energy technologies. The module…

  17. Benchmarking personal cloud storage

    NARCIS (Netherlands)

    Drago, Idilio; Bocchi, Enrico; Mellia, Marco; Slatman, Herman; Pras, Aiko

    2013-01-01

    Personal cloud storage services are data-intensive applications already producing a significant share of Internet traffic. Several solutions offered by different companies attract more and more people. However, little is known about each service capabilities, architecture and - most of all -

  18. DPM: Future Proof Storage

    CERN Document Server

    Alvarez, Alejandro; Furano, Fabrizio; Hellmich, Martin; Keeble, Oliver; Rocha, Ricardo; CERN. Geneva. IT Department

    2012-01-01

    The Disk Pool Manager (DPM) is a lightweight solution for grid enabled disk storage management. Operated at more than 240 sites it has the widest distribution of all grid storage solutions in the WLCG infrastructure. It provides an easy way to manage and configure disk pools, and exposes multiple interfaces for data access (rfio, xroot, nfs, gridftp and http/dav) and control (srm). During the last year we have been working on providing stable, high performant data access to our storage system using standard protocols, while extending the storage management functionality and adapting both configuration and deployment procedures to reuse commonly used building blocks. In this contribution we cover in detail the extensive evaluation we have performed of our new HTTP/WebDAV and NFS 4.1 frontends, in terms of functionality and performance. We summarize the issues we faced and the solutions we developed to turn them into valid alternatives to the existing grid protocols - namely the additional work required to prov...

  19. Energy Storage and Retrieval

    Indian Academy of Sciences (India)

    Annual Meetings · Mid Year Meetings · Discussion Meetings · Public Lectures · Lecture Workshops · Refresher Courses · Symposia · Live Streaming. Home; Journals; Resonance – Journal of Science Education; Volume 1; Issue 6. Energy Storage and Retrieval The Secondary Battery Route. A K Shukla P Vishnu Kamath.

  20. Tuber storage proteins.

    Science.gov (United States)

    Shewry, Peter R

    2003-06-01

    A wide range of plants are grown for their edible tubers, but five species together account for almost 90 % of the total world production. These are potato (Solanum tuberosum), cassava (Manihot esculenta), sweet potato (Ipomoea batatus), yams (Dioscorea spp.) and taro (Colocasia, Cyrtosperma and Xanthosoma spp.). All of these, except cassava, contain groups of storage proteins, but these differ in the biological properties and evolutionary relationships. Thus, patatin from potato exhibits activity as an acylhydrolase and esterase, sporamin from sweet potato is an inhibitor of trypsin, and dioscorin from yam is a carbonic anhydrase. Both sporamin and dioscorin also exhibit antioxidant and radical scavenging activity. Taro differs from the other three crops in that it contains two major types of storage protein: a trypsin inhibitor related to sporamin and a mannose-binding lectin. These characteristics indicate that tuber storage proteins have evolved independently in different species, which contrasts with the highly conserved families of storage proteins present in seeds. Furthermore, all exhibit biological activities which could contribute to resistance to pests, pathogens or abiotic stresses, indicating that they may have dual roles in the tubers.

  1. Fuel storage rack

    International Nuclear Information System (INIS)

    Mollon, L.

    1977-01-01

    Disclosed is a storage rack for spent nuclear fuel elements comprising a multiplicity of elongated hollow containers of uniform cross-section, preferably square,some of said containers having laterally extending continuous flanges extending between adjacent containers and defining continuous elongated chambers therebetween for the reception of neutron absorbing panels. 18 claims, 7 figures

  2. Carbon Capture and Storage

    NARCIS (Netherlands)

    Benson, S.M.; Bennaceur, K.; Cook, P.; Davison, J.; Coninck, H. de; Farhat, K.; Ramirez, C.A.; Simbeck, D.; Surles, T.; Verma, P.; Wright, I.

    2012-01-01

    Emissions of carbon dioxide, the most important long-lived anthropogenic greenhouse gas, can be reduced by Carbon Capture and Storage (CCS). CCS involves the integration of four elements: CO 2 capture, compression of the CO2 from a gas to a liquid or a denser gas, transportation of pressurized CO 2

  3. Storage of radioactive waste

    International Nuclear Information System (INIS)

    Pittman, F.K.

    1974-01-01

    Four methods for managing radioactive waste in order to protect man from its potential hazards include: transmutation to convert radioisotopes in waste to stable isotopes; disposal in space; geological disposal; and surface storage in shielded, cooled, and monitored containers. A comparison of these methods shows geologic disposal in stable formations beneath landmasses appears to be the most feasible with today's technology. (U.S.)

  4. NGLW RCRA Storage Study

    International Nuclear Information System (INIS)

    Waters, R.J.; Ochoa, R.; Fritz, K.D.; Craig, D.W.

    2000-01-01

    The Idaho Nuclear Technology and Engineering Center (INTEC) at the Idaho National Engineering and Environmental Laboratory contains radioactive liquid waste in underground storage tanks at the INTEC Tank Farm Facility (TFF). INTEC is currently treating the waste by evaporation to reduce the liquid volume for continued storage, and by calcination to reduce and convert the liquid to a dry waste form for long-term storage in calcine bins. Both treatment methods and activities in support of those treatment operations result in Newly Generated Liquid Waste (NGLW) being sent to TFF. The storage tanks in the TFF are underground, contained in concrete vaults with instrumentation, piping, transfer jets, and managed sumps in case of any liquid accumulation in the vault. The configuration of these tanks is such that Resource Conservation and Recovery Act (RCRA) regulations apply. The TFF tanks were assessed several years ago with respect to the RCRA regulations and they were found to be deficient. This study considers the configuration of the current tanks and the RCRA deficiencies identified for each. The study identifies four potential methods and proposes a means of correcting the deficiencies. The cost estimates included in the study account for construction cost; construction methods to minimize work exposure to chemical hazards, radioactive contamination, and ionizing radiation hazards; project logistics; and project schedule. The study also estimates the tank volumes benefit associated with each corrective action to support TFF liquid waste management planning

  5. NGLW RCRA Storage Study

    Energy Technology Data Exchange (ETDEWEB)

    R. J. Waters; R. Ochoa; K. D. Fritz; D. W. Craig

    2000-06-01

    The Idaho Nuclear Technology and Engineering Center (INTEC) at the Idaho National Engineering and Environmental Laboratory contains radioactive liquid waste in underground storage tanks at the INTEC Tank Farm Facility (TFF). INTEC is currently treating the waste by evaporation to reduce the liquid volume for continued storage, and by calcination to reduce and convert the liquid to a dry waste form for long-term storage in calcine bins. Both treatment methods and activities in support of those treatment operations result in Newly Generated Liquid Waste (NGLW) being sent to TFF. The storage tanks in the TFF are underground, contained in concrete vaults with instrumentation, piping, transfer jets, and managed sumps in case of any liquid accumulation in the vault. The configuration of these tanks is such that Resource Conservation and Recovery Act (RCRA) regulations apply. The TFF tanks were assessed several years ago with respect to the RCRA regulations and they were found to be deficient. This study considers the configuration of the current tanks and the RCRA deficiencies identified for each. The study identifies four potential methods and proposes a means of correcting the deficiencies. The cost estimates included in the study account for construction cost; construction methods to minimize work exposure to chemical hazards, radioactive contamination, and ionizing radiation hazards; project logistics; and project schedule. The study also estimates the tank volumes benefit associated with each corrective action to support TFF liquid waste management planning.

  6. Spent-fuel-storage alternatives

    Energy Technology Data Exchange (ETDEWEB)

    1980-01-01

    The Spent Fuel Storage Alternatives meeting was a technical forum in which 37 experts from 12 states discussed storage alternatives that are available or are under development. The subject matter was divided into the following five areas: techniques for increasing fuel storage density; dry storage of spent fuel; fuel characterization and conditioning; fuel storage operating experience; and storage and transport economics. Nineteen of the 21 papers which were presented at this meeting are included in this Proceedings. These have been abstracted and indexed. (ATT)

  7. Economics of dry storage systems

    International Nuclear Information System (INIS)

    Moore, G.R.; Winders, R.C.

    1980-01-01

    This paper postulates a dry storage application suitable as a regional away-from-reactor storage (AFR), develops an economical system design concept and estimates system costs. The system discussed uses the experience gained in the dry storage research activities and attempts to present a best foot forward system concept. The major element of the system is the Receiving and Packaging Building. In this building fuel assemblies are removed from transportation casks and encapsulated for storage. This facility could be equally applicable to silo, vault, or caisson storage. However the caisson storage concept has been chosen for discussion purposes

  8. Silo Storage Preconceptual Design

    Energy Technology Data Exchange (ETDEWEB)

    Stephanie L. Austad; Patrick W. Bragassa; Kevin M Croft; David S Ferguson; Scott C Gladson; Annette L Shafer; John H Weathersby

    2012-09-01

    The National Nuclear Security Administration (NNSA) has a need to develop and field a low-cost option for the long-term storage of a variety of radiological material. The storage option’s primary requirement is to provide both environmental and physical protection of the materials. Design criteria for this effort require a low initial cost and minimum maintenance over a 50-year design life. In 1999, Argonne National Laboratory-West was tasked with developing a dry silo storage option for the BN-350 Spent Fuel in Aktau Kazakhstan. Argon’s design consisted of a carbon steel cylinder approximately 16 ft long, 18 in. outside diameter and 0.375 in. wall thickness. The carbon steel silo was protected from corrosion by a duplex coating system consisting of zinc and epoxy. Although the study indicated that the duplex coating design would provide a design life well in excess of the required 50 years, the review board was concerned because of the novelty of the design and the lack of historical use. In 2012, NNSA tasked Idaho National Laboratory (INL) with reinvestigating the silo storage concept and development of alternative corrosion protection strategies. The 2012 study, “Silo Storage Concepts, Cathodic Protection Options Study” (INL/EST-12-26627), concludes that the option which best fits the design criterion is a passive cathotic protection scheme, consisting of a carbon steel tube coated with zinc or a zinc-aluminum alloy encapsulated in either concrete or a cement grout. The hot dipped zinc coating option was considered most efficient, but the flame-sprayed option could be used if a thicker zinc coating was determined to be necessary.

  9. NV Energy Electricity Storage Valuation

    Energy Technology Data Exchange (ETDEWEB)

    Ellison, James F.; Bhatnagar, Dhruv; Samaan, Nader A.; Jin, Chunlian

    2013-06-30

    This study examines how grid-level electricity storage may benet the operations of NV Energy in 2020, and assesses whether those benets justify the cost of the storage system. In order to determine how grid-level storage might impact NV Energy, an hourly production cost model of the Nevada Balancing Authority (\\BA") as projected for 2020 was built and used for the study. Storage facilities were found to add value primarily by providing reserve. Value provided by the provision of time-of-day shifting was found to be limited. If regulating reserve from storage is valued the same as that from slower ramp rate resources, then it appears that a reciprocating engine generator could provide additional capacity at a lower cost than a pumped storage hydro plant or large storage capacity battery system. In addition, a 25-MW battery storage facility would need to cost $650/kW or less in order to produce a positive Net Present Value (NPV). However, if regulating reserve provided by storage is considered to be more useful to the grid than that from slower ramp rate resources, then a grid-level storage facility may have a positive NPV even at today's storage system capital costs. The value of having storage provide services beyond reserve and time-of-day shifting was not assessed in this study, and was therefore not included in storage cost-benefit calculations.

  10. Storage Policies and Optimal Shape of a Storage System

    NARCIS (Netherlands)

    Zaerpour, N.; De Koster, René; Yu, Yugang

    2013-01-01

    The response time of a storage system is mainly influenced by its shape (configuration), the storage assignment and retrieval policies, and the location of the input/output (I/O) points. In this paper, we show that the optimal shape of a storage system, which minimises the response time for single

  11. Synthetic methane for power storage

    NARCIS (Netherlands)

    Botta, G.; Barankin, Michael; Walspurger, S.

    2013-01-01

    With increased share of energy generated from variable renewable sources, storage becomes a critical issue to ensure constantly balanced supply/demand. Methane is a promising vector for energy storage and transport.

  12. Hydrogen Storage Technical Team Roadmap

    Energy Technology Data Exchange (ETDEWEB)

    None

    2013-06-01

    The mission of the Hydrogen Storage Technical Team is to accelerate research and innovation that will lead to commercially viable hydrogen-storage technologies that meet the U.S. DRIVE Partnership goals.

  13. Underground Storage Tanks in Iowa

    Data.gov (United States)

    Iowa State University GIS Support and Research Facility — Underground storage tank (UST) sites which store petroleum in Iowa. Includes sites which have been reported to DNR, and have active or removed underground storage...

  14. Data storage as a service

    OpenAIRE

    Tomšič, Jan

    2016-01-01

    The purpose of the thesis was comparison of interfaces to network attached file systems and object storage. The thesis describes network file system and mounting procedure in Linux operating system. Object storage and distributed storage systems are explained with examples of usage. Amazon S3 is an example of object store with access trough REST interface. Ceph, a system for distributed object storage, is explained in detail, and a Ceph cluster was deployed for the purpose of this thesis. Cep...

  15. Mass storage for microprocessor farms

    International Nuclear Information System (INIS)

    Areti, H.

    1990-01-01

    Experiments in high energy physics require high density and high speed mass storage. Mass storage is needed for data logging during the online data acquisition, data retrieval and storage during the event reconstruction and data manipulation during the physics analysis. This paper examines the storage and speed requirements at the first two stages of the experiments and suggests a possible starting point to deal with the problem. 3 refs., 3 figs

  16. Guidebook on spent fuel storage

    International Nuclear Information System (INIS)

    1984-01-01

    The Guidebook summarizes the experience and information in various areas related to spent fuel storage: technological aspects, the transport of spent fuel, economical, regulatory and institutional aspects, international safeguards, evaluation criteria for the selection of a specific spent fuel storage concept, international cooperation on spent fuel storage. The last part of the Guidebook presents specific problems on the spent fuel storage in the United Kingdom, Sweden, USSR, USA, Federal Republic of Germany and Switzerland

  17. Concrete storage cask for interim storage of spent nuclear fuel

    International Nuclear Information System (INIS)

    Nabemoto, Toyonobu; Fujiwara, Hiroaki; Kobayashi, Shunji; Shionaga, Ryosuke

    2004-01-01

    Experiments and analytical evaluation of the fabrication, non-destructive inspection and structural integrity of reinforced concrete body for storage casks were carried out to demonstrate the concrete storage cask for spent fuel generated from nuclear power plants. Analytical survey on the type of concrete material and fabrication method of the storage cask was performed and the most suitable fabrication method for the concrete body was identified to reduce concrete cracking. The structural integrity of the concrete body of the storage cask under load conditions during storage was confirmed and the long term integrity of concrete body against degradation dependent on environmental factors was evaluated. (author)

  18. Normal matter storage of antiprotons

    International Nuclear Information System (INIS)

    Campbell, L.J.

    1987-01-01

    Various simple issues connected with the possible storage of anti p in relative proximity to normal matter are discussed. Although equilibrium storage looks to be impossible, condensed matter systems are sufficiently rich and controllable that nonequilibrium storage is well worth pursuing. Experiments to elucidate the anti p interactions with normal matter are suggested. 32 refs

  19. Digital device for synchronous storage

    International Nuclear Information System (INIS)

    Kobzar', Yu.M.; Kovtun, V.G.; Pashechko, N.I.

    1991-01-01

    Synchronous storage digital device for IR electron-photon emission spectrometer operating with analogue-to-digital converter F4223 or monocrystal converter K572PV1 is described. The device accomplished deduction of noise-background in each storage cycle. Summation and deduction operational time equals 90 ns, device output code discharge - 20, number of storages -2 23

  20. Volatile liquid storage system

    International Nuclear Information System (INIS)

    Laverman, R.J.; Winters, P.J.; Rinehart, J.K.

    1992-01-01

    This patent describes a method of collecting and abating emission from a volatile liquid in an above ground storage tank. It comprises the liquid storage tank having a bottom, a vertical cylindrical circular wall having a lower edge portion joined to the bottom, and an external fixed roof, the tank having an internal floating roof floating on a volatile liquid stored in the tank, and air vent means in the tank in communication with a vapor space in the tank constituting at least the space above the floating roof when the floating roof floats on a predetermined maximum volume of volatile liquid in the tank; permitting ambient air; pumping emission laden air from the tank vapor space above the floating roof; and by means of the emissions abatement apparatus eliminating most of the emission from the emissions laden air with formation of a gaseous effluent and then discharging the resulting gaseous effluent to the atmosphere

  1. Superconducting magnetic energy storage

    International Nuclear Information System (INIS)

    Rogers, J.D.

    1976-01-01

    Fusion power production requires energy storage and transfer on short time scales to create confining magnetic fields and for heating plasmas. The theta-pinch Scyllac Fusion Test Reactor (SFTR) requires 480 MJ of energy to drive the 5-T compression field with a 0.7-ms rise time. Tokamak Experimental Power Reactors (EPR) require 1 to 2 GJ of energy with a 1 to 2-s rise time for plasma ohmic heating. The design, development, and testing of four 300-kJ energy storage coils to satisfy the SFTR needs are described. Potential rotating machinery and homopolar energy systems for both the Reference Theta-Pinch Reactor (RTPR) and tokamak ohmic-heating are presented

  2. Superconducting Magnetic Energy Storage

    International Nuclear Information System (INIS)

    Hassenzahl, W.

    1989-01-01

    Recent programmatic developments in Superconducting Magnetic Energy Storage (SMES) have prompted renewed and widespread interest in this field. In mid 1987 the Defense Nuclear Agency, acting for the Strategic Defense Initiative Office issued a request for proposals for the design and construction of SMES Engineering Test Model (ETM). Two teams, one led by Bechtel and the other by Ebasco, are now engaged in the first phase of the development of a 10 to 20 MWhr ETM. This report presents the rationale for energy storage on utility systems, describes the general technology of SMES, and explains the chronological development of the technology. The present ETM program is outlined; details of the two projects for ETM development are described in other papers in these proceedings. The impact of high Tc materials on SMES is discussed

  3. Entangled Cloud Storage

    DEFF Research Database (Denmark)

    Ateniese, Giuseppe; Dagdelen, Özgür; Damgård, Ivan Bjerre

    2012-01-01

    keeps the files in it private but still lets each client P_i recover his own data by interacting with S; no cooperation from other clients is needed. At the same time, the cloud provider is discouraged from altering or overwriting any significant part of c as this will imply that none of the clients can......Entangled cloud storage enables a set of clients {P_i} to “entangle” their files {f_i} into a single clew c to be stored by a (potentially malicious) cloud provider S. The entanglement makes it impossible to modify or delete significant part of the clew without affecting all files in c. A clew...... recover their files. We provide theoretical foundations for entangled cloud storage, introducing the notion of an entangled encoding scheme that guarantees strong security requirements capturing the properties above. We also give a concrete construction based on privacy-preserving polynomial interpolation...

  4. Optical information storage

    International Nuclear Information System (INIS)

    Woike, T.

    1996-01-01

    In order to increase storage capacity and data transfer velocity by about three orders of magnitude compared to CD or magnetic disc it is necessary to work with optical techniques, especially with holography. About 100 TByte can be stored in a waver of an area of 50 cm 2 via holograms which corresponds to a density of 2.10 9 Byte/mm 2 . Every hologram contains data of 1 MByte, so that parallel-processing is possible for read-out. Using high-speed CCD-arrays a read-out velocity of 1 MByte/μsec can be reached. Further, holographic technics are very important in solid state physics. We will discuss the existence of a space charge field in Sr 1-x Ba x Nb 2 O 6 doped with cerium and the physical properties of metastable states, which are suited for information storage. (author) 19 figs., 9 refs

  5. Alternatives for water basin spent fuel storage using pin storage

    International Nuclear Information System (INIS)

    Viebrock, J.M.; Carlson, R.W.

    1979-09-01

    The densest tolerable form for storing spent nuclear fuel is storage of only the fuel rods. This eliminates the space between the fuel rods and frees the hardware to be treated as non-fuel waste. The storage density can be as much as 1.07 MTU/ft 2 when racks are used that just satisfy the criticality and thermal limitations. One of the major advantages of pin storage is that it is compatible with existing racks; however, this reduces the storage density to 0.69 MTU/ft 2 . Even this is a substantial increase over the 0.39 MTU/ft 2 that is achievable with current high capacity stainless steel racks which have been selected as the bases for comparison. Disassembly requires extensive operation on the fuel assembly to remove the upper end fitting and to extract the fuel rods from the assembly skeleton. These operations will be performed with the aid of an elevator to raise the assembly where each fuel rod is grappled. Lowering the elevator will free the fuel rod for transfer to the storage canister. A storage savings of $1510 per MTU can be realized if the pin storage concept is incorporated at a new away-from-reactor facility. The storage cost ranges from $3340 to $7820 per MTU of fuel stored with the lower cost applying to storage at an existing away-from-reactor storage facility and the higher cost applying to at-reactor storage

  6. Energy Storage Project

    Science.gov (United States)

    Mercer, Carolyn R.; Jankovsky, Amy L.; Reid, Concha M.; Miller, Thomas B.; Hoberecht, Mark A.

    2011-01-01

    NASA's Exploration Technology Development Program funded the Energy Storage Project to develop battery and fuel cell technology to meet the expected energy storage needs of the Constellation Program for human exploration. Technology needs were determined by architecture studies and risk assessments conducted by the Constellation Program, focused on a mission for a long-duration lunar outpost. Critical energy storage needs were identified as batteries for EVA suits, surface mobility systems, and a lander ascent stage; fuel cells for the lander and mobility systems; and a regenerative fuel cell for surface power. To address these needs, the Energy Storage Project developed advanced lithium-ion battery technology, targeting cell-level safety and very high specific energy and energy density. Key accomplishments include the development of silicon composite anodes, lithiated-mixed-metal-oxide cathodes, low-flammability electrolytes, and cell-incorporated safety devices that promise to substantially improve battery performance while providing a high level of safety. The project also developed "non-flow-through" proton-exchange-membrane fuel cell stacks. The primary advantage of this technology set is the reduction of ancillary parts in the balance-of-plant--fewer pumps, separators and related components should result in fewer failure modes and hence a higher probability of achieving very reliable operation, and reduced parasitic power losses enable smaller reactant tanks and therefore systems with lower mass and volume. Key accomplishments include the fabrication and testing of several robust, small-scale nonflow-through fuel cell stacks that have demonstrated proof-of-concept. This report summarizes the project s goals, objectives, technical accomplishments, and risk assessments. A bibliography spanning the life of the project is also included.

  7. DPM: Future Proof Storage

    Science.gov (United States)

    Alvarez, Alejandro; Beche, Alexandre; Furano, Fabrizio; Hellmich, Martin; Keeble, Oliver; Rocha, Ricardo

    2012-12-01

    The Disk Pool Manager (DPM) is a lightweight solution for grid enabled disk storage management. Operated at more than 240 sites it has the widest distribution of all grid storage solutions in the WLCG infrastructure. It provides an easy way to manage and configure disk pools, and exposes multiple interfaces for data access (rfio, xroot, nfs, gridftp and http/dav) and control (srm). During the last year we have been working on providing stable, high performant data access to our storage system using standard protocols, while extending the storage management functionality and adapting both configuration and deployment procedures to reuse commonly used building blocks. In this contribution we cover in detail the extensive evaluation we have performed of our new HTTP/WebDAV and NFS 4.1 frontends, in terms of functionality and performance. We summarize the issues we faced and the solutions we developed to turn them into valid alternatives to the existing grid protocols - namely the additional work required to provide multi-stream transfers for high performance wide area access, support for third party copies, credential delegation or the required changes in the experiment and fabric management frameworks and tools. We describe new functionality that has been added to ease system administration, such as different filesystem weights and a faster disk drain, and new configuration and monitoring solutions based on the industry standards Puppet and Nagios. Finally, we explain some of the internal changes we had to do in the DPM architecture to better handle the additional load from the analysis use cases.

  8. Tuber Storage Proteins

    OpenAIRE

    SHEWRY, PETER R.

    2003-01-01

    A wide range of plants are grown for their edible tubers, but five species together account for almost 90 % of the total world production. These are potato (Solanum tuberosum), cassava (Manihot esculenta), sweet potato (Ipomoea batatus), yams (Dioscorea spp.) and taro (Colocasia, Cyrtosperma and Xanthosoma spp.). All of these, except cassava, contain groups of storage proteins, but these differ in the biological properties and evolutionary relationships. Thus, patatin from potato exhibits act...

  9. Large mass storage facility

    Energy Technology Data Exchange (ETDEWEB)

    Peskin, Arnold M.

    1978-08-01

    This is the final report of a study group organized to investigate questions surrounding the acquisition of a large mass storage facility. The programatic justification for such a system at Brookhaven is reviewed. Several candidate commercial products are identified and discussed. A draft of a procurement specification is developed. Some thoughts on possible new directions for computing at Brookhaven are also offered, although this topic was addressed outside of the context of the group's deliberations. 2 figures, 3 tables.

  10. Storage ring group summary

    International Nuclear Information System (INIS)

    King, N.M.

    1980-01-01

    The Storage Ring Group set out to identify and pursue salient problems in accelerator physics for heavy ion fusion, divorced from any particular reference design concept. However, it became apparent that some basic parameter framework was required to correlate the different study topics. As the Workshop progressed, ring parameters were modified and updated. Consequently, the accompanying papers on individual topics will be found to refer to slightly varied parameters, according to the stage at which the different problems were tackled

  11. Compact Holographic Data Storage

    Science.gov (United States)

    Chao, T. H.; Reyes, G. F.; Zhou, H.

    2001-01-01

    NASA's future missions would require massive high-speed onboard data storage capability to Space Science missions. For Space Science, such as the Europa Lander mission, the onboard data storage requirements would be focused on maximizing the spacecraft's ability to survive fault conditions (i.e., no loss in stored science data when spacecraft enters the 'safe mode') and autonomously recover from them during NASA's long-life and deep space missions. This would require the development of non-volatile memory. In order to survive in the stringent environment during space exploration missions, onboard memory requirements would also include: (1) survive a high radiation environment (1 Mrad), (2) operate effectively and efficiently for a very long time (10 years), and (3) sustain at least a billion write cycles. Therefore, memory technologies requirements of NASA's Earth Science and Space Science missions are large capacity, non-volatility, high-transfer rate, high radiation resistance, high storage density, and high power efficiency. JPL, under current sponsorship from NASA Space Science and Earth Science Programs, is developing a high-density, nonvolatile and rad-hard Compact Holographic Data Storage (CHDS) system to enable large-capacity, high-speed, low power consumption, and read/write of data in a space environment. The entire read/write operation will be controlled with electrooptic mechanism without any moving parts. This CHDS will consist of laser diodes, photorefractive crystal, spatial light modulator, photodetector array, and I/O electronic interface. In operation, pages of information would be recorded and retrieved with random access and high-speed. The nonvolatile, rad-hard characteristics of the holographic memory will provide a revolutionary memory technology meeting the high radiation challenge facing the Europa Lander mission. Additional information is contained in the original extended abstract.

  12. Disk Storage Server

    CERN Multimedia

    This model was a disk storage server used in the Data Centre up until 2012. Each tray contains a hard disk drive (see the 5TB hard disk drive on the main disk display section - this actually fits into one of the trays). There are 16 trays in all per server. There are hundreds of these servers mounted on racks in the Data Centre, as can be seen.

  13. SXLS storage ring design

    International Nuclear Information System (INIS)

    Anon.

    1991-01-01

    X-ray lithography has emerged as a strong candidate to meet the demands of ever finer linewidths on integrated circuits, particularly for linewidths less than .25 microns. Proximity printing X-ray lithography makes use of soft X-rays to shadow print an image of a mask onto a semiconductor wafer to produce integrated circuits. To generate the required X-rays in sufficient quantities to make commercial production viable, electron storage rings have been proposed as the soft X-ray sources. Existing storage rings have been used to do the initial development work and the success of these efforts has led the lithographers to request that new rings be constructed that are dedicated to X-ray lithography. As a result of a series of workshops held at BNL [10.3] which were attended by both semiconductor and accelerator scientists, the following set of zeroth order specifications' on the light and electron beam of a storage ring for X-ray lithography were developed: critical wavelength of light: λ c = 6 to 10 angstroms, white light power: P = 0.25 to 2.5 watts/mrad, horizontal collection angle per port: θ = 10 to 50 mrad, electron beam sizes: σ x ∼ σ y y ' < 1 mrad

  14. Maui energy storage study.

    Energy Technology Data Exchange (ETDEWEB)

    Ellison, James; Bhatnagar, Dhruv; Karlson, Benjamin

    2012-12-01

    This report investigates strategies to mitigate anticipated wind energy curtailment on Maui, with a focus on grid-level energy storage technology. The study team developed an hourly production cost model of the Maui Electric Company (MECO) system, with an expected 72 MW of wind generation and 15 MW of distributed photovoltaic (PV) generation in 2015, and used this model to investigate strategies that mitigate wind energy curtailment. It was found that storage projects can reduce both wind curtailment and the annual cost of producing power, and can do so in a cost-effective manner. Most of the savings achieved in these scenarios are not from replacing constant-cost diesel-fired generation with wind generation. Instead, the savings are achieved by the more efficient operation of the conventional units of the system. Using additional storage for spinning reserve enables the system to decrease the amount of spinning reserve provided by single-cycle units. This decreases the amount of generation from these units, which are often operated at their least efficient point (at minimum load). At the same time, the amount of spinning reserve from the efficient combined-cycle units also decreases, allowing these units to operate at higher, more efficient levels.

  15. Underground storage tanks

    International Nuclear Information System (INIS)

    Anon.

    1993-01-01

    Environmental contamination from leaking underground storage tanks poses a significant threat to human health and the environment. An estimated five to six million underground storage tanks containing hazardous substances or petroleum products are in use in the US. Originally placed underground as a fire prevention measure, these tanks have substantially reduced the damages from stored flammable liquids. However, an estimated 400,000 underground tanks are thought to be leaking now, and many more will begin to leak in the near future. Products released from these leaking tanks can threaten groundwater supplies, damage sewer lines and buried cables, poison crops, and lead to fires and explosions. As required by the Hazardous and Solid Waste Amendments (HSWA), the EPA has been developing a comprehensive regulatory program for underground storage tanks. The EPA proposed three sets of regulations pertaining to underground tanks. The first addressed technical requirements for petroleum and hazardous substance tanks, including new tank performance standards, release detection, release reporting and investigation, corrective action, and tank closure. The second proposed regulation addresses financial responsibility requirements for underground petroleum tanks. The third addressed standards for approval of state tank programs

  16. Underground storage of heat

    International Nuclear Information System (INIS)

    Despois, J.; Nougarede, F.

    1976-01-01

    The interest laying in heat storage is envisaged taking account of the new energy context, with a view to optimizing the use of production means of heat sources hardly modulated according to the demand. In such a way, a natural medium, without any constructions cost but only an access cost is to be used. So, porous and permeable rocky strata allowing the use of a pressurized water flow as a transfer fluid are well convenient. With such a choice high temperatures (200 deg C) may be obtained, that are suitable for long transmissions. A mathematical model intended for solving the conservation equations in the case of heat storage inside a confined water layer is discussed. An approach of the operating conditions of storage may involve either a line-up arrangement (with the hot drilling at the center, the cold drillings being aligned on both sides) or a radial arrangement (with cold drillings at the peripheral edge encircling the hot drilling at the center of the layer). The three principal problems encountered are: starting drilling, and the circuit insulation and control [fr

  17. Mass storage at NSA

    Science.gov (United States)

    Shields, Michael F.

    1993-01-01

    The need to manage large amounts of data on robotically controlled devices has been critical to the mission of this Agency for many years. In many respects this Agency has helped pioneer, with their industry counterparts, the development of a number of products long before these systems became commercially available. Numerous attempts have been made to field both robotically controlled tape and optical disk technology and systems to satisfy our tertiary storage needs. Custom developed products were architected, designed, and developed without vendor partners over the past two decades to field workable systems to handle our ever increasing storage requirements. Many of the attendees of this symposium are familiar with some of the older products, such as: the Braegen Automated Tape Libraries (ATL's), the IBM 3850, the Ampex TeraStore, just to name a few. In addition, we embarked on an in-house development of a shared disk input/output support processor to manage our every increasing tape storage needs. For all intents and purposes, this system was a file server by current definitions which used CDC Cyber computers as the control processors. It served us well and was just recently removed from production usage.

  18. Scalable cloud without dedicated storage

    Science.gov (United States)

    Batkovich, D. V.; Kompaniets, M. V.; Zarochentsev, A. K.

    2015-05-01

    We present a prototype of a scalable computing cloud. It is intended to be deployed on the basis of a cluster without the separate dedicated storage. The dedicated storage is replaced by the distributed software storage. In addition, all cluster nodes are used both as computing nodes and as storage nodes. This solution increases utilization of the cluster resources as well as improves fault tolerance and performance of the distributed storage. Another advantage of this solution is high scalability with a relatively low initial and maintenance cost. The solution is built on the basis of the open source components like OpenStack, CEPH, etc.

  19. Holographic Optical Data Storage

    Science.gov (United States)

    Timucin, Dogan A.; Downie, John D.; Norvig, Peter (Technical Monitor)

    2000-01-01

    Although the basic idea may be traced back to the earlier X-ray diffraction studies of Sir W. L. Bragg, the holographic method as we know it was invented by D. Gabor in 1948 as a two-step lensless imaging technique to enhance the resolution of electron microscopy, for which he received the 1971 Nobel Prize in physics. The distinctive feature of holography is the recording of the object phase variations that carry the depth information, which is lost in conventional photography where only the intensity (= squared amplitude) distribution of an object is captured. Since all photosensitive media necessarily respond to the intensity incident upon them, an ingenious way had to be found to convert object phase into intensity variations, and Gabor achieved this by introducing a coherent reference wave along with the object wave during exposure. Gabor's in-line recording scheme, however, required the object in question to be largely transmissive, and could provide only marginal image quality due to unwanted terms simultaneously reconstructed along with the desired wavefront. Further handicapped by the lack of a strong coherent light source, optical holography thus seemed fated to remain just another scientific curiosity, until the field was revolutionized in the early 1960s by some major breakthroughs: the proposition and demonstration of the laser principle, the introduction of off-axis holography, and the invention of volume holography. Consequently, the remainder of that decade saw an exponential growth in research on theory, practice, and applications of holography. Today, holography not only boasts a wide variety of scientific and technical applications (e.g., holographic interferometry for strain, vibration, and flow analysis, microscopy and high-resolution imagery, imaging through distorting media, optical interconnects, holographic optical elements, optical neural networks, three-dimensional displays, data storage, etc.), but has become a prominent am advertising

  20. Fuel performance in water storage

    International Nuclear Information System (INIS)

    Hoskins, A.P.; Scott, J.G.; Shelton-Davis, C.V.; McDannel, G.E.

    1993-11-01

    Westinghouse Idaho Nuclear Company operates the Idaho Chemical Processing Plant (ICPP) at the Idaho National Engineering Laboratory (INEL) for the Department of Energy (DOE). A variety of different types of fuels have been stored there since the 1950's prior to reprocessing for uranium recovery. In April of 1992, the DOE decided to end fuel reprocessing, changing the mission at ICPP. Fuel integrity in storage is now viewed as long term until final disposition is defined and implemented. Thus, the condition of fuel and storage equipment is being closely monitored and evaluated to ensure continued safe storage. There are four main areas of fuel storage at ICPP: an original underwater storage facility (CPP-603), a modern underwater storage facility (CPP-666), and two dry fuel storage facilities. The fuels in storage are from the US Navy, DOE (and its predecessors the Energy Research and Development Administration and the Atomic Energy Commission), and other research programs. Fuel matrices include uranium oxide, hydride, carbide, metal, and alloy fuels. In the underwater storage basins, fuels are clad with stainless steel, zirconium, and aluminum. Also included in the basin inventory is canned scrap material. The dry fuel storage contains primarily graphite and aluminum type fuels. A total of 55 different fuel types are currently stored at the Idaho Chemical Processing Plant. The corrosion resistance of the barrier material is of primary concern in evaluating the integrity of the fuel in long term water storage. The barrier material is either the fuel cladding (if not canned) or the can material

  1. Dry storage of Magnox fuel

    International Nuclear Information System (INIS)

    1986-09-01

    This work, commissioned by the CEGB, studies the feasibility of a combination of short-term pond storage and long-term dry storage of Magnox spent fuel as a cheaper alternative to reprocessing. Storage would be either at the reactor site or a central site. Two designs are considered, based on existing design work done by GEC-ESL and NNC; the capsule design developed by NNC and with storage in passive vaults for up to 100 yrs and the GEC-ESL tube design developed at Wylfa for the interim storage of LWR. For the long-term storage of Magnox spent fuel the GEC-ESL tubed vault all-dry storage method is recommended and specifications for this method are given. (U.K.)

  2. Developing new transportable storage casks for interim dry storage

    Energy Technology Data Exchange (ETDEWEB)

    Hayashi, K.; Iwasa, K.; Araki, K.; Asano, R. [Hitachi Zosen Diesel and Engineering Co., Ltd., Tokyo (Japan)

    2004-07-01

    Transportable storage metal casks are to be consistently used during transport and storage for AFR interim dry storage facilities planning in Japan. The casks are required to comply with the technical standards of regulations for both transport (hereinafter called ''transport regulation'') and storage (hereafter called ''storage regulation'') to maintain safety functions (heat transfer, containment, shielding and sub-critical control). In addition to these requirements, it is not planned in normal state to change the seal materials during storage at the storage facility, therefore it is requested to use same seal materials when the casks are transported after storage period. The dry transportable storage metal casks that satisfy the requirements have been developed to meet the needs of the dry storage facilities. The basic policy of this development is to utilize proven technology achieved from our design and fabrication experience, to carry out necessary verification for new designs and to realize a safe and rational design with higher capacity and efficient fabrication.

  3. Níveis de fósforo disponível em dietas para codornas japonesas de 45 a 57 semanas de idade Available phosphorus levels for Japanese quail diets from 45 to 57 weeks of age

    Directory of Open Access Journals (Sweden)

    Carlos Henrique Rocha Costa

    2011-10-01

    Full Text Available Conduziu-se um experimento com o objetivo de verificar o efeito de níveis de fósforo disponível (Pd na dieta sobre o desempenho, a qualidade dos ovos, o tecido ósseo e as porcentagens de fósforo (P, cálcio (Ca e magnésio (Mg nas excretas produzidas por codornas durante o terço final de postura. Foram utilizadas 300 codornas japonesas com 313 dias de idade, distribuídas em 30 unidades experimentais de dez aves. O delineamento foi inteiramente casualizado, composto de cinco níveis de Pd (0,15; 0,25; 0,35; 0,45 e 0,55%, com seis repetições por tratamento. As dietas experimentais foram isoproteicas (20,0% PB, isocalóricas (2.900 kcal EM/kg, isocálcicas (3,0% Ca e isoaminoacídicas. O aumento dos níveis de Pd na dieta aumentou linearmente os teores de Ca e Mg na tíbia, entretanto reduziu linearmente a altura dos ovos analisados. Observou-se efeito quadrático sobre o peso específico, o peso e a porcentagem de casca, a porcentagem de cálcio na casca e de fósforo na tíbia, cujos pontos de máxima foram atingidos com a utilização de 0,43; 0,41; 0,42; 0,27 e 0,42% Pd, respectivamente. Efeitos quadráticos também foram observados para excreção de Ca, cinzas e P, cujos valores máximos foram obtidos com a utilização de 0,34; 0,30 e 0,43% Pd na dieta, respectivamente. Nos demais parâmetros avaliados, não houve efeito dos níveis de Pd. Dietas contendo 0,15% Pd atendem satisfatoriamente às exigências para desempenho e manutenção da integridade física do ovo, além de reduzir a excreção de fósforo sem provocar perda de ovos por problemas de casca nem ocorrência de fadiga de gaiola por enfraquecimento do sistema ósseo, embora seja observada redução na mineralização da casca e do tecido ósseo de codornas japonesas no terço final do ciclo de produção (45 a 57 semanas de idade.An experiment was conducted aiming to verify the effect of different levels of available phosphorus (AP in the diet on performance, egg

  4. Energy Storage System

    Science.gov (United States)

    1996-01-01

    SatCon Technology Corporation developed the drive train for use in the Chrysler Corporation's Patriot Mark II, which includes the Flywheel Energy Storage (FES) system. In Chrysler's experimental hybrid- electric car, the hybrid drive train uses an advanced turboalternator that generates electricity by burning a fuel; a powerful, compact electric motor; and a FES that eliminates the need for conventional batteries. The FES system incorporates technology SatCon developed in more than 30 projects with seven NASA centers, mostly for FES systems for spacecraft attitude control and momentum recovery. SatCon will continue to develop the technology with Westinghouse Electric Corporation.

  5. Interim storage study report

    Energy Technology Data Exchange (ETDEWEB)

    Rawlins, J.K.

    1998-02-01

    High-level radioactive waste (HLW) stored at the Idaho Chemical Processing Plant (ICPP) in the form of calcine and liquid and liquid sodium-bearing waste (SBW) will be processed to provide a stable waste form and prepare the waste to be transported to a permanent repository. Because a permanent repository will not be available when the waste is processed, the waste must be stored at ICPP in an Interim Storage Facility (ISF). This report documents consideration of an ISF for each of the waste processing options under consideration.

  6. CLOUD STORAGE SERVICES

    OpenAIRE

    Yan, Cheng

    2017-01-01

    Cloud computing is a hot topic in recent research and applications. Because it is widely used in various fields. Up to now, Google, Microsoft, IBM, Amazon and other famous co partnership have proposed their cloud computing application. Look upon cloud computing as one of the most important strategy in the future. Cloud storage is the lower layer of cloud computing system which supports the service of the other layers above it. At the same time, it is an effective way to store and manage heavy...

  7. Compact electron storage rings

    International Nuclear Information System (INIS)

    Williams, G.P.

    1987-01-01

    There have been many recent developments in the area of compact storage rings. Such rings would have critical wavelengths of typically 10 A, achieved with beam energies of several hundreds of MeV and superconducting dipole fields of around 5 Tesla. Although the primary motivation for progress in this area is that of commercial x-ray lithography, such sources might be an attractive source for college campuses to operate. They would be useful for many programs in materials science, solid state, x-ray microscopy and other biological areas. We discuss the properties of such sources and review developments around the world, primarily in the USA, japan and W. Germany

  8. SALES, STORAGE AND SALVAGE

    CERN Multimedia

    Division SPL, groupe logistique; A. Notar

    2000-01-01

    From 3 January 2000 there will be a security barrier in front of the storage-recycling area in bldg 133, which will be accessible only to authorised staff and contractors.You are reminded that the equipment delivered to this area must be unpolluted and non-radioactive. The cost of recycling the equipment will be debited to the budget code of the Division concerned, with the prior approval of the Group Leader.Reminder relating to equipment salesThe Sales Section is open on Thursdays from 13.30 to 15.00 hours only.SPL DivisionLogistics GroupA. Notari

  9. Energy storage financing :

    Energy Technology Data Exchange (ETDEWEB)

    Baxter, Richard

    2016-08-01

    Project financing is emerging as the linchpin for the future health, direction, and momentum of the energy storage industry. Market leaders have so far relied on selffunding or captive lending arrangements to fund projects. New lenders are proceeding hesitantly as they lack a full understanding of the technology, business, and credit risks involved in this rapidly changing market. The U.S. Department of Energy is poised to play a critical role in expanding access to capital by reducing the barriers to entry for new lenders, and providing trusted analytical benchmarks to better judge and price the risk in systematic ways.

  10. Interim storage report

    International Nuclear Information System (INIS)

    Rawlins, J.K.

    1998-02-01

    High-level radioactive waste (HLW) stored at the Idaho Chemical Processing Plant (ICPP) in the form of calcine and liquid and liquid sodium-bearing waste (SBW) will be processed to provide a stable waste form and prepare the waste to be transported to a permanent repository. Because a permanent repository will not be available when the waste is processed, the waste must be stored at ICPP in an Interim Storage Facility (ISF). This report documents consideration of an ISF for each of the waste processing options under consideration

  11. TEXT Energy Storage System

    International Nuclear Information System (INIS)

    Weldon, W.F.; Rylander, H.G.; Woodson, H.H.

    1977-01-01

    The Texas Experimental Tokamak (TEXT) Enery Storage System, designed by the Center for Electromechanics (CEM), consists of four 50 MJ, 125 V homopolar generators and their auxiliaries and is designed to power the toroidal and poloidal field coils of TEXT on a two-minute duty cycle. The four 50 MJ generators connected in series were chosen because they represent the minimum cost configuration and also represent a minimal scale up from the successful 5.0 MJ homopolar generator designed, built, and operated by the CEM

  12. Magnesium for Hydrogen Storage

    DEFF Research Database (Denmark)

    Pedersen, Allan Schrøder; Kjøller, John; Larsen, B.

    1983-01-01

    A study of the hydrogenation characteristics of fine magnesium powder during repeated cycling has been performed using a high-pressure microbalance facility. No effect was found from the cycling regarding kinetics and storage capacity. The reaction rate of the absorption process was fast...... at temperatures around 600 K and above, but the reversed reaction showed somewhat slower kinetics around 600 K. At higher temperatures the opposite was found. The enthalpy and entropy change by the hydrogenation, derived from pressure-concentration isotherms, agree fairly well with those reported earlier....

  13. Plutonium storage study

    International Nuclear Information System (INIS)

    1979-01-01

    This Spanish study gives a more detailed analysis of a possible store for plutonium oxide. The capacity of the store is assumed to be 30 t Pu and the minimum storage time 2 years. The study includes a general description of the store and its design philosophy; comments on the quality and properties of the material stored; a detailed criticality study and comments on gas and heat generation and shielding requirements; and a brief cost evaluation. Costs are estimated to be about $110/kg PuO 2 /year

  14. Gas Storage Technology Consortium

    Energy Technology Data Exchange (ETDEWEB)

    Joel Morrison; Elizabeth Wood; Barbara Robuck

    2010-09-30

    The EMS Energy Institute at The Pennsylvania State University (Penn State) has managed the Gas Storage Technology Consortium (GSTC) since its inception in 2003. The GSTC infrastructure provided a means to accomplish industry-driven research and development designed to enhance the operational flexibility and deliverability of the nation's gas storage system, and provide a cost-effective, safe, and reliable supply of natural gas to meet domestic demand. The GSTC received base funding from the U.S. Department of Energy's (DOE) National Energy Technology Laboratory (NETL) Oil & Natural Gas Supply Program. The GSTC base funds were highly leveraged with industry funding for individual projects. Since its inception, the GSTC has engaged 67 members. The GSTC membership base was diverse, coming from 19 states, the District of Columbia, and Canada. The membership was comprised of natural gas storage field operators, service companies, industry consultants, industry trade organizations, and academia. The GSTC organized and hosted a total of 18 meetings since 2003. Of these, 8 meetings were held to review, discuss, and select proposals submitted for funding consideration. The GSTC reviewed a total of 75 proposals and committed co-funding to support 31 industry-driven projects. The GSTC committed co-funding to 41.3% of the proposals that it received and reviewed. The 31 projects had a total project value of $6,203,071 of which the GSTC committed $3,205,978 in co-funding. The committed GSTC project funding represented an average program cost share of 51.7%. Project applicants provided an average program cost share of 48.3%. In addition to the GSTC co-funding, the consortium provided the domestic natural gas storage industry with a technology transfer and outreach infrastructure. The technology transfer and outreach were conducted by having project mentoring teams and a GSTC website, and by working closely with the Pipeline Research Council International (PRCI) to

  15. Solar energy storage

    CERN Document Server

    Sorensen, Bent

    2015-01-01

    While solar is the fastest-growing energy source in the world, key concerns around solar power's inherent variability threaten to de-rail that scale-up . Currently, integration of intermittent solar resources into the grid creates added complication to load management, leading some utilities to reject it altogether, while other operators may penalize the producers via rate increases or force solar developers to include storage devices on-site to smooth out power delivery at the point of production. However these efforts at mitigation unfold, it is increasingly clear to parties on all sides th

  16. Monitored retrievable storage status

    International Nuclear Information System (INIS)

    Carlson, J.H.

    1985-01-01

    The Department of Energy (DOE) is preparing a proposal for Congressional consideration of the inclusion of a monitored retrievable storage (MRS) facility as part of the Federal Nuclear Waste Management System. The DOE plans to submit the proposal package to the Congress by January 15, 1986. The proposed preferred location of the MRS facility is the former Clinch River Breeder site in the state of Tennessee. If the Congress approves implementation of the MRS proposal, it is estimated that the facility could be licensed and operational in ten years

  17. Regulated underground storage tanks

    International Nuclear Information System (INIS)

    1992-06-01

    This guidance package is designed to assist DOE Field operations by providing thorough guidance on the underground storage tank (UST) regulations. [40 CFR 280]. The guidance uses tables, flowcharts, and checklists to provide a ''roadmap'' for DOE staff who are responsible for supervising UST operations. This package is tailored to address the issues facing DOE facilities. DOE staff should use this guidance as: An overview of the regulations for UST installation and operation; a comprehensive step-by-step guidance for the process of owning and operating an UST, from installation to closure; and a quick, ready-reference guide for any specific topic concerning UST ownership or operation

  18. Heavy ion storage rings

    International Nuclear Information System (INIS)

    Schuch, R.

    1987-01-01

    A brief overview of synchrotron storage rings for heavy ions, which are presently under construction in different accelerator laboratories is given. Ions ranging from protons up to uranium ions at MeV/nucleon energies will be injected into these rings using multiturn injection from the accelerators available or being built in these laboratories. After injection, it is planned to cool the phase space distribution of the ions by merging them with cold electron beams or laser beams, or by using stochastic cooling. Some atomic physics experiments planned for these rings are presented. 35 refs

  19. Storage array reflection considerations

    International Nuclear Information System (INIS)

    Haire, M.J.; Jordan, W.C.; Taylor, R.G.

    1997-01-01

    The assumptions used for reflection conditions of single containers are fairly well established and consistently applied throughout the industry in nuclear criticality safety evaluations. Containers are usually considered to be either fully water-reflected (i.e. surrounded by 6 to 12 in. of water) for safety calculations or reflected by 1 in. of water for nominal (structural material and air) conditions. Tables and figures are usually available for performing comparative evaluations of containers under various loading conditions. Reflection considerations used for evaluating the safety of storage arrays of fissile material are not as well established

  20. Femtoslicing in Storage Rings

    CERN Document Server

    Khan, Shaukat

    2005-01-01

    The generation of ultrashort synchrotron radiation pulses by laser-induced energy modulation of electrons and their subsequent transverse displacement, now dubbed "femtoslicing," was demonstrated at the Advanced Light Source in Berkeley. More recently, a femtoslicing user facility was commissioned at the BESSY storage ring in Berlin, and another project is in progress at the Swiss Light Source. The paper reviews the principle of femtoslicing, its merits and shortcomings, as well as the variations of its technical implementation. Various diagnostics techniques to detect successful laser-electron interaction are discussed and experimental results are presented.

  1. Radioactive gas storage device

    International Nuclear Information System (INIS)

    Seki, Eiji; Kobayashi, Yoshihiro.

    1989-01-01

    The present invention concerns a device of ionizing radioactive gases to be processed in gaseous nuclear fission products in nuclear fuel reprocessing plants, etc., and injecting them into metal substrates for storage. The device comprises a vessel for a tightly closed type outer electrode in which gases to be processed are introduced, an electrode disposed to the inside of the vessel and the target material, a high DC voltage power source for applying high voltage to the electrodes, etc. There are disposed a first electric discharging portion for preparting discharge plasma for ion injection of different electrode distance and a second electric discharging portion for causing stable discharge between the vessel and the electrode. The first electric discharging portion for the ion injection provides an electrode distance suitable to acceleration sputtering and the second electric discharging portion is used for stable discharge. Accordingly, if the gas pressure in the radioactive gas storage device is reduced by the external disturbance, etc., since the second electric discharging portion satisfies the electric discharging conditions, the device can continue electric discharge. (K.M.)

  2. Flywheel energy storage workshop

    Energy Technology Data Exchange (ETDEWEB)

    O`Kain, D.; Carmack, J. [comps.

    1995-12-31

    Since the November 1993 Flywheel Workshop, there has been a major surge of interest in Flywheel Energy Storage. Numerous flywheel programs have been funded by the Advanced Research Projects Agency (ARPA), by the Department of Energy (DOE) through the Hybrid Vehicle Program, and by private investment. Several new prototype systems have been built and are being tested. The operational performance characteristics of flywheel energy storage are being recognized as attractive for a number of potential applications. Programs are underway to develop flywheels for cars, buses, boats, trains, satellites, and for electric utility applications such as power quality, uninterruptible power supplies, and load leveling. With the tremendous amount of flywheel activity during the last two years, this workshop should again provide an excellent opportunity for presentation of new information. This workshop is jointly sponsored by ARPA and DOE to provide a review of the status of current flywheel programs and to provide a forum for presentation of new flywheel technology. Technology areas of interest include flywheel applications, flywheel systems, design, materials, fabrication, assembly, safety & containment, ball bearings, magnetic bearings, motor/generators, power electronics, mounting systems, test procedures, and systems integration. Information from the workshop will help guide ARPA & DOE planning for future flywheel programs. This document is comprised of detailed viewgraphs.

  3. Stationary flywheel energy storage

    Energy Technology Data Exchange (ETDEWEB)

    Gilhaus, A; Hau, E; Gassner, G; Huss, G; Schauberger, H

    1981-01-01

    The aim of this system study is to find out industrial applications of stationary flywheel energy accumulators. The economic value for the consumer and the effects on the power supply grid are investigated. Up to now, stationary flywheel energy accumulators have only been used in a small range. The main reason for thinking of the application in a wider range was the hope that those could be used economically for lowering the maximum output demand of the power supply grid. The possible savings in energy costs, however, proved to be too small for paying back the investment costs. Further benefits are necessary for advantageous application. As to overall economy, compensation of short time maximum power output seems to be more favorable at the power stations. An additional possibility for energy storage by flywheels is given where otherwise lost energy can be used effectively, according to the successful brake energy storage in vehicles. Under this aspect the future use of flywheels in wind-power-plants seems to be promising. Attractive savings of energy can be obtained by introducing modern flywheel technology for emergency power supply units which are employed for instance in telecommunication systems. Especially the application for emergency power supply, in power stations and in combustion with wind energy converters need further investigation.

  4. Nuclear fuel storage

    International Nuclear Information System (INIS)

    Bevilacqua, F.

    1981-01-01

    A nuclear fuel storage apparatus for use in a water-filled pool is fabricated of a material such as stainless steel in the form of an egg crate structure having vertically extending openings. Fuel may be stored in this basic structure in a checkerboard pattern with high enrichment fuel, or in all openings when the fuel is of low effective enrichment. Inserts of a material such as stainless steel are adapted to fit within these openings so that a water gap and, therefore, a flux trap is formed between adjacent fuel storage locations. These inserts may be added at a later time and fuel of a higher enrichment may be stored in each opening. When it is desired to store fuel of still greater enrichment, poison plates may be added to the water gap formed by the installed insert plates, or substituted for the insert plates. Alternately, or in addition, fuel may be installed in high neutron absorption poison boxes which surround the fuel assembly. The stainless steel inserts and the poison plates are each not required until the capacity of the basic egg crate structure is approached. Purchase of these items can, therefore, be deferred for many years. Should the fuel to be stored be of higher enrichment than initially forecast, the deferred decision on the poison plates makes it possible to obtain increased poison in the plates to satisfy the newly discovered requirement

  5. Storage array reflection considerations

    International Nuclear Information System (INIS)

    Haire, M.J.; Jordan, W.C.; Taylor, R.G.

    1997-01-01

    The assumptions used for reflection conditions of single containers are fairly well established and consistently applied throughout the industry in nuclear criticality safety evaluations. Containers are usually considered to be either fully water reflected (i.e., surrounded by 6 to 12 in. of water) for safety calculations or reflected by 1 in. of water for nominal (structural material and air) conditions. Tables and figures are usually available for performing comparative evaluations of containers under various loading conditions. Reflection considerations used for evaluating the safety of storage arrays of fissile material are not as well established. When evaluating arrays, it has become more common for analysts to use calculations to demonstrate the safety of the array configuration. In performing these calculations, the analyst has considerable freedom concerning the assumptions made for modeling the reflection of the array. Considerations are given for the physical layout of the array with little or no discussion (or demonstration) of what conditions are bounded by the assumed reflection conditions. For example, an array may be generically evaluated by placing it in a corner of a room in which the opposing walls are far away. Typically, it is believed that complete flooding of the room is incredible, so the array is evaluated for various levels of water mist interspersed among array containers. This paper discusses some assumptions that are made regarding storage array reflection

  6. Spent fuel interim storage

    International Nuclear Information System (INIS)

    Bilegan, Iosif C.

    2003-01-01

    The official inauguration of the spent fuel interim storage took place on Monday July 28, 2003 at Cernavoda NNP. The inaugural event was attended by local and central public authority representatives, a Canadian Government delegation as well as newsmen from local and central mass media and numerous specialists from Cernavoda NPP compound. Mr Andrei Grigorescu, State Secretary with the Economy and Commerce Ministry, underlined in his talk the importance of this objective for the continuous development of nuclear power in Romania as well as for Romania's complying with the EU practice in this field. Also the excellent collaboration between the Canadian contractor AECL and the Romanian partners Nuclear Montaj, CITON, UTI, General Concret in the accomplishment of this unit at the planned terms and costs. On behalf of Canadian delegation, spoke Minister Don Boudria. He underlined the importance which the Canadian Government affords to the cooperation with Romania aiming at specific objectives in the field of nuclear power such as the Cernavoda NPP Unit 2 and spent fuel interim storage. After traditional cutting of the inaugural ribbon by the two Ministers the festivities continued on the Cernavoda NPP Compound with undersigning the documents regarding the project completion and a press conference

  7. Lysosomal lipid storage diseases.

    Science.gov (United States)

    Schulze, Heike; Sandhoff, Konrad

    2011-06-01

    Lysosomal lipid storage diseases, or lipidoses, are inherited metabolic disorders in which typically lipids accumulate in cells and tissues. Complex lipids, such as glycosphingolipids, are constitutively degraded within the endolysosomal system by soluble hydrolytic enzymes with the help of lipid binding proteins in a sequential manner. Because of a functionally impaired hydrolase or auxiliary protein, their lipid substrates cannot be degraded, accumulate in the lysosome, and slowly spread to other intracellular membranes. In Niemann-Pick type C disease, cholesterol transport is impaired and unesterified cholesterol accumulates in the late endosome. In most lysosomal lipid storage diseases, the accumulation of one or few lipids leads to the coprecipitation of other hydrophobic substances in the endolysosomal system, such as lipids and proteins, causing a "traffic jam." This can impair lysosomal function, such as delivery of nutrients through the endolysosomal system, leading to a state of cellular starvation. Therapeutic approaches are currently restricted to mild forms of diseases with significant residual catabolic activities and without brain involvement.

  8. Optical information storage

    Energy Technology Data Exchange (ETDEWEB)

    Woike, T [Koeln Univ., Inst. fuer Kristallography, Koeln (Germany)

    1996-11-01

    In order to increase storage capacity and data transfer velocity by about three orders of magnitude compared to CD or magnetic disc it is necessary to work with optical techniques, especially with holography. About 100 TByte can be stored in a waver of an area of 50 cm{sup 2} via holograms which corresponds to a density of 2.10{sup 9} Byte/mm{sup 2}. Every hologram contains data of 1 MByte, so that parallel-processing is possible for read-out. Using high-speed CCD-arrays a read-out velocity of 1 MByte/{mu}sec can be reached. Further, holographic technics are very important in solid state physics. We will discuss the existence of a space charge field in Sr{sub 1-x}Ba{sub x}Nb{sub 2}O{sub 6} doped with cerium and the physical properties of metastable states, which are suited for information storage. (author) 19 figs., 9 refs.

  9. Spent fuel storage rack

    International Nuclear Information System (INIS)

    Kurokawa, Hideaki; Kumagaya, Naomi; Oda, Masashi; Matsuda, Masami; Maruyama, Hiromi; Yamanaka, Tsuneyasu.

    1997-01-01

    The structure of a spent fuel storage rack is determined by the material, thickness, size of square cylindrical tubes (the gap between spent fuel assemblies and the square cylindrical tubes) and pitch of the arrangement (the gap between each of the square cylindrical tubes). In the present invention, the thickness and the pitch of the arrangement of the square tubes are optimized while evaluating subcriticality. Namely, when the sum of the thickness of the water gap at the outer side (the pitch of arrangement of the cylindrical tubes) and the thickness of the cylindrical tubes is made constant, the storage rack is formed by determining the thickness of the cylindrical tubes which is smaller than the optimum value among the combination of the thickness of the water gap at the outer side and that of the cylindrical tube under the effective multiplication factor to be performed. Then, the weight of the rack can be reduced, and the burden of the load on the bottom of the pool can be reduced. Further, the amount of the constitutional materials of the rack itself can be reduced thereby capable of reducing the cost for the materials of the rack. (T.M.)

  10. Magnetic energy storage

    International Nuclear Information System (INIS)

    Rogers, J.D.

    1980-01-01

    The fusion program embraces low loss superconductor strand development with integration into cables capable of carrying 50 kA in pulsed mode at high fields. This evolvement has been paralleled with pulsed energy storage coil development and testing from tens of kJ at low fields to a 20 MJ prototype tokamak induction coil at 7.5 T. Energy transfer times have ranged from 0.7 ms to several seconds. Electric utility magnetic storage for prospective application is for diurnal load leveling with massive systems to store 10 GWh at 1.8 K in a dewar structure supported on bedrock underground. An immediate utility application is a 30 MJ system to be used to damp power oscillations on the Bonneville Power Administration electric transmission lines. An off-shoot of this last work is a new program for electric utility VAR control with the potential for use to suppress subsynchronous resonance. This paper presents work in progress, work planned, and recently completed unusual work

  11. Underground storage tank program

    International Nuclear Information System (INIS)

    Lewis, M.W.

    1994-01-01

    Underground storage tanks, UST'S, have become a major component of the Louisville District's Environmental Support Program. The District's Geotechnical and Environmental Engineering Branch has spear-headed an innovative effort to streamline the time, effort and expense for removal, replacement, upgrade and associated cleanup of USTs at military and civil work installations. This program, called Yank-A-Tank, creates generic state-wide contracts for removal, remediation, installation and upgrade of storage tanks for which individual delivery orders are written under the basic contract. The idea is to create a ''JOC type'' contract containing all the components of work necessary to remove, reinstall or upgrade an underground or above ground tank. The contract documents contain a set of generic specifications and unit price books in addition to the standard ''boiler plate'' information. Each contract requires conformance to the specific regulations for the state in which it is issued. The contractor's bid consists of a bid factor which in the multiplier used with the prices in the unit price book. The solicitation is issued as a Request for Proposal (RPP) which allows the government to select a contractor based on technical qualification an well as bid factor. Once the basic contract is awarded individual delivery orders addressing specific areas of work are scoped, negotiated and awarded an modifications to the original contract. The delivery orders utilize the prepriced components and the contractor's factor to determine the value of the work

  12. Physalis peruviana seed storage

    Directory of Open Access Journals (Sweden)

    Cíntia L. M. de Souza

    2016-03-01

    Full Text Available ABSTRACT Physalis peruviana belongs to Solanaceae family and has a high nutritional and nutraceutical potential. The production is intended for fruit consumption and the propagation is mainly by seeds. This study aimed to evaluate the influence of priming on the kinetics of germination of P. peruviana seeds stored at different temperatures. The seeds were stored at 5 and 25 °C in a chamber saturated with zinc chloride solution and in liquid nitrogen (-196 °C. Every 4 months, the seeds were removed from storage for evaluation of germination and moisture content in the laboratory and emergence and development of seedlings in greenhouse. During the last evaluation at 16 months, the seeds under the same conditions were subjected to salt stress. The moisture content varied during the storage period, but was always higher for seeds kept at -196 ºC. These seeds kept high germination percentage in water until 16 months, regardless of the tested temperature; however, in salt solution the germination percentage was significantly reduced.

  13. Gas hydrate cool storage system

    Science.gov (United States)

    Ternes, M.P.; Kedl, R.J.

    1984-09-12

    The invention presented relates to the development of a process utilizing a gas hydrate as a cool storage medium for alleviating electric load demands during peak usage periods. Several objectives of the invention are mentioned concerning the formation of the gas hydrate as storage material in a thermal energy storage system within a heat pump cycle system. The gas hydrate was formed using a refrigerant in water and an example with R-12 refrigerant is included. (BCS)

  14. The circular RFQ storage ring

    International Nuclear Information System (INIS)

    Ruggiero, A.G.

    1998-01-01

    This paper presents a novel idea of storage ring for the accumulation of intense beams of light and heavy ions at low energy. The new concept is a natural development of the combined features used in a conventional storage ring and an ion trap, and is basically a linear RFQ bend on itself. In summary the advantages are: smaller beam dimensions, higher beam intensity, and a more compact storage device

  15. The Circular RFQ Storage Ring

    International Nuclear Information System (INIS)

    Ruggiero, A. G.

    1999-01-01

    This paper presents a novel idea of storage ring for the accumulation of intense beams of light and heavy ions at low energy. The new concept is a natural development of the combined features of conventional storage rings and ion traps, and is basically a linear RFQ bent on itself. The advantages are: smaller beam dimensions, higher beam intensity, and a more compact storage device

  16. The Petascale Data Storage Institute

    Energy Technology Data Exchange (ETDEWEB)

    Gibson, Garth [Carnegie Mellon Univ., Pittsburgh, PA (United States); Long, Darrell [The Regents of the University of California, Santa Cruz, CA (United States); Honeyman, Peter [Univ. of Michigan, Ann Arbor, MI (United States); Grider, Gary [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Kramer, William [National Energy Research Scientific Computing Center, Berkeley, CA (United States); Shalf, John [National Energy Research Scientific Computing Center, Berkeley, CA (United States); Roth, Philip [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Felix, Evan [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Ward, Lee [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2013-07-01

    Petascale computing infrastructures for scientific discovery make petascale demands on information storage capacity, performance, concurrency, reliability, availability, and manageability.The Petascale Data Storage Institute focuses on the data storage problems found in petascale scientific computing environments, with special attention to community issues such as interoperability, community buy-in, and shared tools.The Petascale Data Storage Institute is a collaboration between researchers at Carnegie Mellon University, National Energy Research Scientific Computing Center, Pacific Northwest National Laboratory, Oak Ridge National Laboratory, Sandia National Laboratory, Los Alamos National Laboratory, University of Michigan, and the University of California at Santa Cruz.

  17. HTGR spent fuel storage study

    International Nuclear Information System (INIS)

    Burgoyne, R.M.; Holder, N.D.

    1979-04-01

    This report documents a study of alternate methods of storing high-temperature gas-cooled reactor (HTGR) spent fuel. General requirements and design considerations are defined for a storage facility integral to a fuel recycle plant. Requirements for stand-alone storage are briefly considered. Three alternate water-cooled storage conceptual designs (plug well, portable well, and monolith) are considered and compared to a previous air-cooled design. A concept using portable storage wells in racks appears to be the most favorable, subject to seismic analysis and economic evaluation verification

  18. Advanced materials for energy storage.

    Science.gov (United States)

    Liu, Chang; Li, Feng; Ma, Lai-Peng; Cheng, Hui-Ming

    2010-02-23

    Popularization of portable electronics and electric vehicles worldwide stimulates the development of energy storage devices, such as batteries and supercapacitors, toward higher power density and energy density, which significantly depends upon the advancement of new materials used in these devices. Moreover, energy storage materials play a key role in efficient, clean, and versatile use of energy, and are crucial for the exploitation of renewable energy. Therefore, energy storage materials cover a wide range of materials and have been receiving intensive attention from research and development to industrialization. In this Review, firstly a general introduction is given to several typical energy storage systems, including thermal, mechanical, electromagnetic, hydrogen, and electrochemical energy storage. Then the current status of high-performance hydrogen storage materials for on-board applications and electrochemical energy storage materials for lithium-ion batteries and supercapacitors is introduced in detail. The strategies for developing these advanced energy storage materials, including nanostructuring, nano-/microcombination, hybridization, pore-structure control, configuration design, surface modification, and composition optimization, are discussed. Finally, the future trends and prospects in the development of advanced energy storage materials are highlighted.

  19. Advanced materials for energy storage

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Chang; Li, Feng; Ma, Lai-Peng; Cheng, Hui-Ming [Shenyang National Laboratory for Materials Science Institute of Metal Research, Chinese Academy of Sciences 72 Wenhua Road, Shenyang 110016 (China)

    2010-02-23

    Popularization of portable electronics and electric vehicles worldwide stimulates the development of energy storage devices, such as batteries and supercapacitors, toward higher power density and energy density, which significantly depends upon the advancement of new materials used in these devices. Moreover, energy storage materials play a key role in efficient, clean, and versatile use of energy, and are crucial for the exploitation of renewable energy. Therefore, energy storage materials cover a wide range of materials and have been receiving intensive attention from research and development to industrialization. In this review, firstly a general introduction is given to several typical energy storage systems, including thermal, mechanical, electromagnetic, hydrogen, and electrochemical energy storage. Then the current status of high-performance hydrogen storage materials for on-board applications and electrochemical energy storage materials for lithium-ion batteries and supercapacitors is introduced in detail. The strategies for developing these advanced energy storage materials, including nanostructuring, nano-/microcombination, hybridization, pore-structure control, configuration design, surface modification, and composition optimization, are discussed. Finally, the future trends and prospects in the development of advanced energy storage materials are highlighted. (Abstract Copyright [2010], Wiley Periodicals, Inc.)

  20. The Fermilab data storage infrastructure

    International Nuclear Information System (INIS)

    Jon A Bakken et al.

    2003-01-01

    Fermilab, in collaboration with the DESY laboratory in Hamburg, Germany, has created a petabyte scale data storage infrastructure to meet the requirements of experiments to store and access large data sets. The Fermilab data storage infrastructure consists of the following major storage and data transfer components: Enstore mass storage system, DCache distributed data cache, ftp and Grid ftp for primarily external data transfers. This infrastructure provides a data throughput sufficient for transferring data from experiments' data acquisition systems. It also allows access to data in the Grid framework

  1. In vitro storage of synthetic seeds: Effect of different storage ...

    African Journals Online (AJOL)

    In vitro derived shoots of olive cv. Moraiolo were employed in synthetic seeds preparation by alginate encapsulation, and then stored in artificial endosperm solution at cold (4°C) and room storage (21 ± 2°C) conditions in interaction with different storage intervals of 0, 15, 30, 45 and 60 days to evaluate the comparative ...

  2. Effects of storage conditions and storage period on nutritional and ...

    African Journals Online (AJOL)

    In this work, the effects of storage conditions and storage period on the nutritional and other qualities of stored yam tubers were investigated. ... environment, signs of deterioration of the tuber such as sprouting, weight loss and rotting and some ...

  3. Storage envelopes or sleeves

    International Nuclear Information System (INIS)

    Freshwater, J.R.; Wagman, P.I.

    1980-01-01

    A storage envelope or sleeve particularly for processed X-ray films is described. It consists of front and back panels joined together at a hinge line and connected along the intermediate sides by connecting flaps. An inner pocket is formed from a third flap which is folded to lie against the inner face of the back panel. The panels may have additional score lines parallel to the closed sides of the envelope and the inner pocket so that the envelope and the inner pocket can accommodate bulky contents. The free edge of the pocket is inset from the open side of the envelope, and finger cut-outs may be provided to facilitate access to the contents of the envelope and the pocket. (author)

  4. Reversible hydrogen storage materials

    Science.gov (United States)

    Ritter, James A [Lexington, SC; Wang, Tao [Columbia, SC; Ebner, Armin D [Lexington, SC; Holland, Charles E [Cayce, SC

    2012-04-10

    In accordance with the present disclosure, a process for synthesis of a complex hydride material for hydrogen storage is provided. The process includes mixing a borohydride with at least one additive agent and at least one catalyst and heating the mixture at a temperature of less than about 600.degree. C. and a pressure of H.sub.2 gas to form a complex hydride material. The complex hydride material comprises MAl.sub.xB.sub.yH.sub.z, wherein M is an alkali metal or group IIA metal, Al is the element aluminum, x is any number from 0 to 1, B is the element boron, y is a number from 0 to 13, and z is a number from 4 to 57 with the additive agent and catalyst still being present. The complex hydride material is capable of cyclic dehydrogenation and rehydrogenation and has a hydrogen capacity of at least about 4 weight percent.

  5. Inductive energy storage commutator

    International Nuclear Information System (INIS)

    Gavrilov, I.M.

    1987-01-01

    An inductive energy storage commutator is described. The value of commutated current is up to 800 A, the voltage amplitude in the load is up to 50 kV, the working frequency is equal to 1-50 Hz, the commutated power is up to 40 MW. The commutating device comprises of the first stage commutator having two in-series connected modules of the BTSV - 800/235 high-voltage thyristor unit, the second stage commutator containing three GMI-43A parallel connected powerful pulsed triodes, a commutating capacitor, an induction coil, two supplementary high-voltage thyristor keys (20 in-series connected thyristors T2-300 (13 class)), load, control pulse shapers, thyristor keys, power supply

  6. Radioactive gas storage device

    International Nuclear Information System (INIS)

    Sano, Yuji.

    1988-01-01

    Purpose: To easily and reliably detect the consumption of a sputtered cathode in a radioactive gas storage device using ion injection method. Constitution: Inert gases are sealed to the inside of a cathode. As the device is operated, the cathode is consumed and, if it is scraped to some extent, inert gases in the cathode gases are blown out to increase the inner pressure of the device. The pressure elevation is detected by a pressure detector connected with a gas introduction pipe or discharge pipe. Further, since the discharge current in the inside is increased along with the elevation of the pressure, it is possible to detect the increase of the electrical current. In this way, the consumption of the cathode can be recognized by detecting the elevation in the pressure or increase in the current. (Ikeda, J.)

  7. Terrestrial Water Storage

    Science.gov (United States)

    Rodell, M.; Chambers, D. P.; Famiglietti, J. S.

    2015-01-01

    During 2014 dryness continued in the Northern Hemisphere and relative wetness continued in the Southern Hemisphere (Fig. 2.21; Plate 2.1g). These largely canceled out such that the global land surface began and ended the year with a terrestrial water storage (TWS) anomaly slightly below 0 cm (equivalent height of water; Fig. 2.22). TWS is the sum of groundwater, soil moisture, surface water, snow, and ice. Groundwater responds more slowly to meteorological phenomena than the other components because the overlying soil acts as a low pass filter, but often it has a larger range of variability on multiannual timescales (Rodell and Famiglietti 2001; Alley et al. 2002).In situ groundwater data are only archived and made and Tanzania. The rest of the continent experienced mixed to dry conditions. Significant reductions in TWS in Greenland, Antarctica, and southern coastal Alaska reflect ongoing ice sheet and glacier ablation, not groundwater depletion.

  8. Lysosomal storage diseases

    Science.gov (United States)

    Ferreira, Carlos R.; Gahl, William A.

    2016-01-01

    Lysosomes are cytoplasmic organelles that contain a variety of different hydrolases. A genetic deficiency in the enzymatic activity of one of these hydrolases will lead to the accumulation of the material meant for lysosomal degradation. Examples include glycogen in the case of Pompe disease, glycosaminoglycans in the case of the mucopolysaccharidoses, glycoproteins in the cases of the oligosaccharidoses, and sphingolipids in the cases of Niemann-Pick disease types A and B, Gaucher disease, Tay-Sachs disease, Krabbe disease, and metachromatic leukodystrophy. Sometimes, the lysosomal storage can be caused not by the enzymatic deficiency of one of the hydrolases, but by the deficiency of an activator protein, as occurs in the AB variant of GM2 gangliosidosis. Still other times, the accumulated lysosomal material results from failed egress of a small molecule as a consequence of a deficient transporter, as in cystinosis or Salla disease. In the last couple of decades, enzyme replacement therapy has become available for a number of lysosomal storage diseases. Examples include imiglucerase, taliglucerase and velaglucerase for Gaucher disease, laronidase for Hurler disease, idursulfase for Hunter disease, elosulfase for Morquio disease, galsulfase for Maroteaux-Lamy disease, alglucosidase alfa for Pompe disease, and agalsidase alfa and beta for Fabry disease. In addition, substrate reduction therapy has been approved for certain disorders, such as eliglustat for Gaucher disease. The advent of treatment options for some of these disorders has led to newborn screening pilot studies, and ultimately to the addition of Pompe disease and Hurler disease to the Recommended Uniform Screening Panel (RUSP) in 2015 and 2016, respectively. PMID:29152458

  9. Spent fuel storage - dry storage options and issues

    International Nuclear Information System (INIS)

    Akins, M.J.

    2007-01-01

    The increase in the number of nuclear energy power generation facilities will require the ability to store the spent nuclear fuel for a long period until the host countries develop reprocessing or disposal options. Plants have storage pools which are closely associated with the operating units. These are excellent for short term storage, but require active maintenance and operations support which are not desirable for the long term. Over the past 25 years, dry storage options have been developed and implemented throughout the world. In recent years, protection against terrorist attack has become an increasing source of design objectives for these facilities, as well as the main nuclear plant. This paper explores the current design options of dry storage cask systems and examines some of the current design issues for above ground , in-ground, or below-ground storage of spent fuel in dry casks. (author)

  10. Licensing of spent fuel dry storage and consolidated rod storage

    International Nuclear Information System (INIS)

    Bailey, W.J.

    1990-02-01

    The results of this study, performed by Pacific Northwest Laboratory (PNL) and sponsored by the US Department of Energy (DOE), respond to the nuclear industry's recommendation that a report be prepared that collects and describes the licensing issues (and their resolutions) that confront a new applicant requesting approval from the US Nuclear Regulatory Commission (NRC) for dry storage of spent fuel or for large-scale storage of consolidated spent fuel rods in pools. The issues are identified in comments, questions, and requests from the NRC during its review of applicants' submittals. Included in the report are discussions of (1) the 18 topical reports on cask and module designs for dry storage fuel that have been submitted to the NRC, (2) the three license applications for dry storage of spent fuel at independent spent fuel storage installations (ISFSIs) that have been submitted to the NRC, and (3) the three applications (one of which was later withdrawn) for large-scale storage of consolidated fuel rods in existing spent fuel storage pools at reactors that were submitted tot he NRC. For each of the applications submitted, examples of some of the issues (and suggestions for their resolutions) are described. The issues and their resolutions are also covered in detail in an example in each of the three subject areas: (1) the application for the CASTOR V/21 dry spent fuel storage cask, (2) the application for the ISFSI for dry storage of spent fuel at Surry, and (3) the application for full-scale wet storage of consolidated spent fuel at Millstone-2. The conclusions in the report include examples of major issues that applicants have encountered. Recommendations for future applicants to follow are listed. 401 refs., 26 tabs

  11. Status of US storage efforts

    International Nuclear Information System (INIS)

    Leasburg, R.H.

    1984-01-01

    Tasks involved in the implementation of the Nuclear Waste Policy Act are discussed. The need for speedy action on applications to deal with spent fuel storage problems is stressed. The problems faced by the Virginia Electric and Power Company, where full core discharge capability at the 1600-megawatt Surry power station is expected to be reached in early 1986, are reviewed. It is pointed out that although the Nuclear Waste Policy Act does not apply in this case, the problems illustrate the situation that may be faced after the Act is implemented. Problems involved in intro-utility transhipments and dry cask storage of spent fuel from Surry, including transportation ordinances at state and local levels and approval for the use of dry casks for storage, are reported. The suggestion that dry casks be used for interim storage and eventual transport to monitored retrievable storage facilities or permanent storage sites is considered. It is pointed out that data from a proposed 3-utility demonstration program of dry cask storage of consolidated fuels and the storage of fuels in air should give information applicable to the timely implementation of the Nuclear Waste Policy Act

  12. Tribology of magnetic storage systems

    Science.gov (United States)

    Bhushan, Bharat

    1992-01-01

    The construction and the materials used in different magnetic storage devices are defined. The theories of friction and adhesion, interface temperatures, wear, and solid-liquid lubrication relevant to magnetic storage systems are presented. Experimental data are presented wherever possible to support the relevant theories advanced.

  13. Glycogen Storage Disease Type IV

    DEFF Research Database (Denmark)

    Bendroth-Asmussen, Lisa; Aksglaede, Lise; Gernow, Anne B

    2016-01-01

    molecular genetic analyses confirmed glycogen storage disease Type IV with the finding of compound heterozygosity for 2 mutations (c.691+2T>C and c.1570C>T, p.R524X) in the GBE1 gene. We conclude that glycogen storage disease Type IV can cause early miscarriage and that diagnosis can initially be made...

  14. Spent fuel storage facility, Kalpakkam

    International Nuclear Information System (INIS)

    Shreekumar, B.; Anthony, S.

    2017-01-01

    Spent Fuel Storage Facility (SFSF), Kalpakkam is designed to store spent fuel arising from PHWRs. Spent fuel is transported in AERB qualified/authorized shipping cask by NPCIL to SFSF by road or rail route. The spent fuel storage facility at Kalpakkam was hot commissioned in December 2006. All systems, structures and components (SSCs) related to safety are designed to meet the operational requirements

  15. Nanostructured materials for hydrogen storage

    Science.gov (United States)

    Williamson, Andrew J.; Reboredo, Fernando A.

    2007-12-04

    A system for hydrogen storage comprising a porous nano-structured material with hydrogen absorbed on the surfaces of the porous nano-structured material. The system of hydrogen storage comprises absorbing hydrogen on the surfaces of a porous nano-structured semiconductor material.

  16. Hydrogen storage in carbon nanostruc

    NARCIS (Netherlands)

    Hirscher, M.; Becher, M.; Haluska, M.; Quintel, A.; Skakalova, V.; Choi, M.; Dettlaff-Weglikowska, U.; Roth, S.; Stepanek, I.; Bernier, P.; Leonhardt, A.; Fink, J.

    2002-01-01

    The paper gives a critical review of the literature on hydrogen storage in carbon nanostructures. Furthermore, the hydrogen storage of graphite, graphite nanofibers (GNFs), and single-walled carbon nanotubes (SWNTs) was measured by thermal desorption spectroscopy (TDS). The samples were ball milled

  17. Study of mined storage caverns

    International Nuclear Information System (INIS)

    1975-06-01

    All available information concerning 75 mined storage caverns as well as the investigative techniques utilized to determine the feasibility of a cavern site is presented. Potential new storage caverns may be for products such as high or low vapor pressure petroleum products, other chemical products, aid industrial or nuclear waste

  18. Dry spent fuel storage licensing

    International Nuclear Information System (INIS)

    Sturz, F.C.

    1995-01-01

    In the US, at-reactor-site dry spent fuel storage in independent spent fuel storage installations (ISFSI) has become the principal option for utilities needing storage capacity outside of the reactor spent fuel pools. Delays in the geologic repository operational date at or beyond 2010, and the increasing uncertainty of the US Department of Energy's (DOE) being able to site and license a Monitored Retrievable Storage (MRS) facility by 1998 make at-reactor-site dry storage of spent nuclear fuel increasingly desirable to utilities and DOE to meet the need for additional spent fuel storage capacity until disposal, in a repository, is available. The past year has been another busy year for dry spent fuel storage licensing. The licensing staff has been reviewing 7 applications and 12 amendment requests, as well as participating in inspection-related activities. The authors have licensed, on a site-specific basis, a variety of dry technologies (cask, module, and vault). By using certified designs, site-specific licensing is no longer required. Another new cask has been certified. They have received one new application for cask certification and two amendments to a certified cask design. As they stand on the brink of receiving multiple applications from DOE for the MPC, they are preparing to meet the needs of this national program. With the range of technical and licensing options available to utilities, the authors believe that utilities can meet their need for additional spent fuel storage capacity for essentially all reactor sites through the next decade

  19. Neuroimaging of Lipid Storage Disorders

    Science.gov (United States)

    Rieger, Deborah; Auerbach, Sarah; Robinson, Paul; Gropman, Andrea

    2013-01-01

    Lipid storage diseases, also known as the lipidoses, are a group of inherited metabolic disorders in which there is lipid accumulation in various cell types, including the central nervous system, because of the deficiency of a variety of enzymes. Over time, excessive storage can cause permanent cellular and tissue damage. The brain is particularly…

  20. Block storage subsystem performance analysis

    CERN Multimedia

    CERN. Geneva

    2016-01-01

    You feel that your service is slow because of the storage subsystem? But there are too many abstraction layers between your software and the raw block device for you to debug all this pile... Let's dive on the platters and check out how the block storage sees your I/Os! We can even figure out what those patterns are meaning.

  1. Southern company energy storage study :

    Energy Technology Data Exchange (ETDEWEB)

    Ellison, James; Bhatnagar, Dhruv; Black, Clifton; Jenkins, Kip

    2013-03-01

    This study evaluates the business case for additional bulk electric energy storage in the Southern Company service territory for the year 2020. The model was used to examine how system operations are likely to change as additional storage is added. The storage resources were allowed to provide energy time shift, regulation reserve, and spinning reserve services. Several storage facilities, including pumped hydroelectric systems, flywheels, and bulk-scale batteries, were considered. These scenarios were tested against a range of sensitivities: three different natural gas price assumptions, a 15% decrease in coal-fired generation capacity, and a high renewable penetration (10% of total generation from wind energy). Only in the elevated natural gas price sensitivities did some of the additional bulk-scale storage projects appear justifiable on the basis of projected production cost savings. Enabling existing peak shaving hydroelectric plants to provide regulation and spinning reserve, however, is likely to provide savings that justify the project cost even at anticipated natural gas price levels. Transmission and distribution applications of storage were not examined in this study. Allowing new storage facilities to serve both bulk grid and transmission/distribution-level needs may provide for increased benefit streams, and thus make a stronger business case for additional storage.

  2. Spent fuel storage and isolation

    International Nuclear Information System (INIS)

    Bensky, M.S.; Kurzeka, W.J.; Bauer, A.A.; Carr, J.A.; Matthews, S.C.

    1979-02-01

    The principal spent fuel activities conducted within the commercial waste and spent fuel within the Commercial Waste and Spent Fuel Packaging Program are: simulated near-surface (drywell) storage demonstrations at Hanford and the Nevada Test Site; surface (sealed storage cask) and drywell demonstrations at the Nevada Test Site; and spent fuel receiving and packaging facility conceptual design. These investigations are described

  3. Storage arrangements for nuclear fuel

    International Nuclear Information System (INIS)

    Ealing, C.J.

    1985-01-01

    A storage arrangement for nuclear fuel has a plurality of storage tubes connected by individual pipes to manifolds which are connected, in turn, to an exhaust system for maintaining the tubes at sub-atmospheric pressure, and means for producing a flow of a cooling fluid, such as air, over the exterior surfaces of the tubes. (author)

  4. Electrochemistry and Storage Panel Report

    Science.gov (United States)

    Stedman, J. K.; Halpert, G.

    1984-01-01

    Design and performance requirements for electrochemical power storage systems are discussed and some of the approaches towards satisfying these constraints are described. Geosynchronous and low Earth orbit applications, radar type load constraints, and high voltage systems requirements are addressed. In addition, flywheel energy storage is discussed.

  5. Electrochemical hydrogen Storage Systems

    Energy Technology Data Exchange (ETDEWEB)

    Dr. Digby Macdonald

    2010-08-09

    As the global need for energy increases, scientists and engineers have found a possible solution by using hydrogen to power our world. Although hydrogen can be combusted as a fuel, it is considered an energy carrier for use in fuel cells wherein it is consumed (oxidized) without the production of greenhouse gases and produces electrical energy with high efficiency. Chemical storage of hydrogen involves release of hydrogen in a controlled manner from materials in which the hydrogen is covalently bound. Sodium borohydride and aminoborane are two materials given consideration as chemical hydrogen storage materials by the US Department of Energy. A very significant barrier to adoption of these materials as hydrogen carriers is their regeneration from 'spent fuel,' i.e., the material remaining after discharge of hydrogen. The U.S. Department of Energy (DOE) formed a Center of Excellence for Chemical Hydrogen Storage, and this work stems from that project. The DOE has identified boron hydrides as being the main compounds of interest as hydrogen storage materials. The various boron hydrides are then oxidized to release their hydrogen, thereby forming a 'spent fuel' in the form of a lower boron hydride or even a boron oxide. The ultimate goal of this project is to take the oxidized boron hydrides as the spent fuel and hydrogenate them back to their original form so they can be used again as a fuel. Thus this research is essentially a boron hydride recycling project. In this report, research directed at regeneration of sodium borohydride and aminoborane is described. For sodium borohydride, electrochemical reduction of boric acid and sodium metaborate (representing spent fuel) in alkaline, aqueous solution has been investigated. Similarly to literature reports (primarily patents), a variety of cathode materials were tried in these experiments. Additionally, approaches directed at overcoming electrostatic repulsion of borate anion from the cathode, not

  6. Electrochemical hydrogen Storage Systems

    International Nuclear Information System (INIS)

    Macdonald, Digby

    2010-01-01

    As the global need for energy increases, scientists and engineers have found a possible solution by using hydrogen to power our world. Although hydrogen can be combusted as a fuel, it is considered an energy carrier for use in fuel cells wherein it is consumed (oxidized) without the production of greenhouse gases and produces electrical energy with high efficiency. Chemical storage of hydrogen involves release of hydrogen in a controlled manner from materials in which the hydrogen is covalently bound. Sodium borohydride and aminoborane are two materials given consideration as chemical hydrogen storage materials by the US Department of Energy. A very significant barrier to adoption of these materials as hydrogen carriers is their regeneration from 'spent fuel,' i.e., the material remaining after discharge of hydrogen. The U.S. Department of Energy (DOE) formed a Center of Excellence for Chemical Hydrogen Storage, and this work stems from that project. The DOE has identified boron hydrides as being the main compounds of interest as hydrogen storage materials. The various boron hydrides are then oxidized to release their hydrogen, thereby forming a 'spent fuel' in the form of a lower boron hydride or even a boron oxide. The ultimate goal of this project is to take the oxidized boron hydrides as the spent fuel and hydrogenate them back to their original form so they can be used again as a fuel. Thus this research is essentially a boron hydride recycling project. In this report, research directed at regeneration of sodium borohydride and aminoborane is described. For sodium borohydride, electrochemical reduction of boric acid and sodium metaborate (representing spent fuel) in alkaline, aqueous solution has been investigated. Similarly to literature reports (primarily patents), a variety of cathode materials were tried in these experiments. Additionally, approaches directed at overcoming electrostatic repulsion of borate anion from the cathode, not described in the

  7. Different types of intermediate storages

    International Nuclear Information System (INIS)

    Spilker, H.

    1982-01-01

    Spent nuclear fuel elements require a period of ''cooling'' after withdrawal from a nuclear reactor. This is done in water storage pools located at the reactor facility. The minimum storage time prior to subsequent operations with the spent fuel is recognized as six to twelve months. After the initial storage period for cooling, the subsequent storage time in water pools could vary from a few years to several decades. Up to 1980, about 15.700 MTHM of spent LWR and HWR fuel have been discharged from nuclear stations. Since only a small fraction thereof has been already reprocessed. The spent fuel assemblies are stored at the reactor-side (AR) in reactor basins in normal or compact racks and away from reactor (AFR) in water pool storages awaiting either reprocessing or final disposal depending on the fuel cycle concept chosen by the individual countries. (orig.)

  8. Anthology of dry storage solutions

    Energy Technology Data Exchange (ETDEWEB)

    Allimann, Nathalie; Otton, Camille [AREVA, Paris (France)

    2012-03-15

    Around 35,000 PWR, BWR or Veer used fuel elements with various enrichment value up to 5%, various cooling time down to 2 years and various burn-ups up to 60,000 Mwd/tU are currently stored in AREVA dry storage solutions. These solutions are delivered in the United States, in Japan and in many European countries like Belgium, Switzerland, Italy, Armenia and Germany. With more than 1000 dry storage solutions delivered all over the world AREVA is the leader on this market. Dealing with dry storage is not an easy task. Products have to be flexible, to be adapted to customer needs and to the national regulations which may stipulate very strict tests such as airplane crash or simulation of earthquake. To develop a dry storage solution for a foreign country means to deal with its national competent authorities. All the national competent authorities do not have the same requirements. Storage conditions may also be different.

  9. Anthology of dry storage solutions

    International Nuclear Information System (INIS)

    Allimann, Nathalie; Otton, Camille

    2012-01-01

    Around 35,000 PWR, BWR or Veer used fuel elements with various enrichment value up to 5%, various cooling time down to 2 years and various burn-ups up to 60,000 Mwd/tU are currently stored in AREVA dry storage solutions. These solutions are delivered in the United States, in Japan and in many European countries like Belgium, Switzerland, Italy, Armenia and Germany. With more than 1000 dry storage solutions delivered all over the world AREVA is the leader on this market. Dealing with dry storage is not an easy task. Products have to be flexible, to be adapted to customer needs and to the national regulations which may stipulate very strict tests such as airplane crash or simulation of earthquake. To develop a dry storage solution for a foreign country means to deal with its national competent authorities. All the national competent authorities do not have the same requirements. Storage conditions may also be different

  10. A review of pumped energy storage schemes

    International Nuclear Information System (INIS)

    Unsworth, G.N.

    1975-07-01

    The comparative advantages and costs of pumped water storage, steam accumulators, storage of boiler feedwater , and compressed air storage in caverns are described. Boiler feedwater storage in caverns and pumped water storage are most economical. All systems are costly enough to justify developing reactors with load following capabilities. (E.C.B.)

  11. Locally Minimum Storage Regenerating Codes in Distributed Cloud Storage Systems

    Institute of Scientific and Technical Information of China (English)

    Jing Wang; Wei Luo; Wei Liang; Xiangyang Liu; Xiaodai Dong

    2017-01-01

    In distributed cloud storage sys-tems, inevitably there exist multiple node fail-ures at the same time. The existing methods of regenerating codes, including minimum storage regenerating (MSR) codes and mini-mum bandwidth regenerating (MBR) codes, are mainly to repair one single or several failed nodes, unable to meet the repair need of distributed cloud storage systems. In this paper, we present locally minimum storage re-generating (LMSR) codes to recover multiple failed nodes at the same time. Specifically, the nodes in distributed cloud storage systems are divided into multiple local groups, and in each local group (4, 2) or (5, 3) MSR codes are constructed. Moreover, the grouping method of storage nodes and the repairing process of failed nodes in local groups are studied. The-oretical analysis shows that LMSR codes can achieve the same storage overhead as MSR codes. Furthermore, we verify by means of simulation that, compared with MSR codes, LMSR codes can reduce the repair bandwidth and disk I/O overhead effectively.

  12. Thermochemical Heat Storage: from Reaction Storage Density to System Storage Density

    NARCIS (Netherlands)

    Jong, A.J. de; Vliet, L.D. van; Hoegaerts, C.L.G.; Roelands, C.P.M.; Cuypers, R.

    2016-01-01

    Long-term and compact storage of solar energy is crucial for the eventual transition to a 100% renewable energy economy. For this, thermochemical materials provide a promising solution. The compactness of a long-term storage system is determined by the thermochemical reaction, operating conditions,

  13. Submersible energy storage apparatus

    International Nuclear Information System (INIS)

    Mccartney, J.F.; Rowe, R.A.

    1980-01-01

    A submersible energy storage apparatus for an electrical power source is provided which includes an electrolysis unit feed water gas collection assembly and a fuel cell. The electrolysis unit feed water gas collection assembly includes a hydrogen container and an oxygen container wherein each container has a gas outlet and is capable of containing feed water as well as hydrogen and oxygen gases respectively. An electrolysis cell is provided which has a hydrogen outlet, an oxygen outlet and a feed water inlet. The hydrogen outlet is located in the hydrogen container, the oxygen outlet is located in the oxygen container, and the feed water inlet is located in one of the containers. Each of the containers has an opening to the submersible environment so as to be pressure responsive thereto. A barrier device is provided in association with the opening in each container for isolating the feed water in the container from water in the submersible environment. The fuel cell is operatively connected to the hydrogen and oxygen containers, and the electrical power source is operatively connected to the electrolysis cell. With this arrangement the electrolysis cell is capable of utilizing power from the power source during low electrical energy demand, and the fuel cell is capable of utilizing the hydrogen and oxygen gases for generating electricity during high demand periods

  14. Lipid storage myopathies.

    Science.gov (United States)

    Bruno, Claudio; Dimauro, Salvatore

    2008-10-01

    The aim of this review is to provide an update on disorders of lipid metabolism affecting skeletal muscle exclusively or predominantly and to summarize recent clinical, genetic, and therapeutic studies in this field. Over the past 5 years, new clinical phenotypes and genetic loci have been described, unusual pathogenic mechanisms have been elucidated, and novel pharmacological approaches have been developed. At least one genetic defect responsible for the myopathic form of CoQ10 deficiency has been identified, causing a disorder that is allelic with the late-onset riboflavine-responsive form of multiple acyl-coenzyme A dehydrogenation deficiency. Novel mechanisms involved in the lipolytic breakdown of cellular lipid depots have been described and have led to the identification of genes and mutations responsible for multisystemic neutral lipid storage disorders, characterized by accumulation of triglyceride in multiple tissues, including muscle. Defects in lipid metabolism can affect either the mitochondrial transport and oxidation of exogenous fatty acid or the catabolism of endogenous triglycerides. These disorders impair energy production and almost invariably involve skeletal muscle, causing progressive myopathy with muscle weakness, or recurrent acute episodes of rhabdomyolysis triggered by exercise, fasting, or infections. Clinical and genetic characterization of these disorders has important implications both for accurate diagnostic approach and for development of therapeutic strategies.

  15. Tritium Storage Material

    International Nuclear Information System (INIS)

    Cowgill, Donald F.; Luo, Weifang; Smugeresky, John E.; Robinson, David B.; Fares, Stephen James; Ong, Markus D.; Arslan, Ilke; Tran, Kim L.; McCarty, Kevin F.; Sartor, George B.; Stewart, Kenneth D.; Clift, W. Miles

    2008-01-01

    Nano-structured palladium is examined as a tritium storage material with the potential to release beta-decay-generated helium at the generation rate, thereby mitigating the aging effects produced by enlarging He bubbles. Helium retention in proposed structures is modeled by adapting the Sandia Bubble Evolution model to nano-dimensional material. The model shows that even with ligament dimensions of 6-12 nm, elevated temperatures will be required for low He retention. Two nanomaterial synthesis pathways were explored: de-alloying and surfactant templating. For de-alloying, PdAg alloys with piranha etchants appeared likely to generate the desired morphology with some additional development effort. Nano-structured 50 nm Pd particles with 2-3 nm pores were successfully produced by surfactant templating using PdCl salts and an oligo(ethylene oxide) hexadecyl ether surfactant. Tests were performed on this material to investigate processes for removing residual pore fluids and to examine the thermal stability of pores. A tritium manifold was fabricated to measure the early He release behavior of this and Pd black material and is installed in the Tritium Science Station glove box at LLNL. Pressure-composition isotherms and particle sizes of a commercial Pd black were measured.

  16. Disk storage at CERN

    CERN Document Server

    Mascetti, L; Chan, B; Espinal, X; Fiorot, A; Labrador, H Gonz; Iven, J; Lamanna, M; Presti, G Lo; Mościcki, JT; Peters, AJ; Ponce, S; Rousseau, H; van der Ster, D

    2015-01-01

    CERN IT DSS operates the main storage resources for data taking and physics analysis mainly via three system: AFS, CASTOR and EOS. The total usable space available on disk for users is about 100 PB (with relative ratios 1:20:120). EOS actively uses the two CERN Tier0 centres (Meyrin and Wigner) with 50:50 ratio. IT DSS also provide sizeable on-demand resources for IT services most notably OpenStack and NFS-based clients: this is provided by a Ceph infrastructure (3 PB) and few proprietary servers (NetApp). We will describe our operational experience and recent changes to these systems with special emphasis to the present usages for LHC data taking, the convergence to commodity hardware (nodes with 200-TB each with optional SSD) shared across all services. We also describe our experience in coupling commodity and home-grown solution (e.g. CERNBox integration in EOS, Ceph disk pools for AFS, CASTOR and NFS) and finally the future evolution of these systems for WLCG and beyond.

  17. Disk storage at CERN

    Science.gov (United States)

    Mascetti, L.; Cano, E.; Chan, B.; Espinal, X.; Fiorot, A.; González Labrador, H.; Iven, J.; Lamanna, M.; Lo Presti, G.; Mościcki, JT; Peters, AJ; Ponce, S.; Rousseau, H.; van der Ster, D.

    2015-12-01

    CERN IT DSS operates the main storage resources for data taking and physics analysis mainly via three system: AFS, CASTOR and EOS. The total usable space available on disk for users is about 100 PB (with relative ratios 1:20:120). EOS actively uses the two CERN Tier0 centres (Meyrin and Wigner) with 50:50 ratio. IT DSS also provide sizeable on-demand resources for IT services most notably OpenStack and NFS-based clients: this is provided by a Ceph infrastructure (3 PB) and few proprietary servers (NetApp). We will describe our operational experience and recent changes to these systems with special emphasis to the present usages for LHC data taking, the convergence to commodity hardware (nodes with 200-TB each with optional SSD) shared across all services. We also describe our experience in coupling commodity and home-grown solution (e.g. CERNBox integration in EOS, Ceph disk pools for AFS, CASTOR and NFS) and finally the future evolution of these systems for WLCG and beyond.

  18. Storage of sunflower seeds

    Directory of Open Access Journals (Sweden)

    Denise de Castro Lima

    Full Text Available The sunflower is among the top five crops in the world for the production of edible vegetable oil. The species displays rustic behavior, with an excellent edaphic and climatic adaptability index, being able to be cultivated throughout Brazil. Seed quality is the key to increasing production and productivity in the sunflower. The objective of this work was to monitor the viability of sunflower seeds with a view to their conservation when stored in different environments and packaging. The seeds were packed in paper bags, multilayered paper, black polyethylene and PET bottles; and stored for a period of twelve months in the following environments: dry cold room (10 ºC and 55% RH, the ambient conditions of Fortaleza, Ceará, Brazil (30-32 ºC and 75% RH, refrigerator (4 ºC and 38-43% RH and freezer (-20 ºC. Every three months, the water content of the seeds was determined and germination, accelerated ageing, speed of emergence index, and seedling dry weight were evaluated. The experimental design was completely randomized, in a scheme of split-lots, with four replications. It can be concluded that the natural environment is not suitable for the storage of sunflower seeds. Sunflower seeds remain viable for 12 months when stored in a dry cold room, refrigerator or freezer, irrespective of the type of packaging used.

  19. Superconducting energy storage magnet

    Science.gov (United States)

    Boom, Roger W. (Inventor); Eyssa, Yehia M. (Inventor); Abdelsalam, Mostafa K. (Inventor); Huang, Xianrui (Inventor)

    1993-01-01

    A superconducting magnet is formed having composite conductors arrayed in coils having turns which lie on a surface defining substantially a frustum of a cone. The conical angle with respect to the central axis is preferably selected such that the magnetic pressure on the coil at the widest portion of the cone is substantially zero. The magnet structure is adapted for use as an energy storage magnet mounted in an earthen trench or tunnel where the strength the surrounding soil is lower at the top of the trench or tunnel than at the bottom. The composite conductor may be formed having a ripple shape to minimize stresses during charge up and discharge and has a shape for each ripple selected such that the conductor undergoes a minimum amount of bending during the charge and discharge cycle. By minimizing bending, the working of the normal conductor in the composite conductor is minimized, thereby reducing the increase in resistance of the normal conductor that occurs over time as the conductor undergoes bending during numerous charge and discharge cycles.

  20. Nuclear materials management storage study

    International Nuclear Information System (INIS)

    Becker, G.W. Jr.

    1994-02-01

    The Office of Weapons and Materials Planning (DP-27) requested the Planning Support Group (PSG) at the Savannah River Site to help coordinate a Departmental complex-wide nuclear materials storage study. This study will support the development of management strategies and plans until Defense Programs' Complex 21 is operational by DOE organizations that have direct interest/concerns about or responsibilities for nuclear material storage. They include the Materials Planning Division (DP-273) of DP-27, the Office of the Deputy Assistant Secretary for Facilities (DP-60), the Office of Weapons Complex Reconfiguration (DP-40), and other program areas, including Environmental Restoration and Waste Management (EM). To facilitate data collection, a questionnaire was developed and issued to nuclear materials custodian sites soliciting information on nuclear materials characteristics, storage plans, issues, etc. Sites were asked to functionally group materials identified in DOE Order 5660.1A (Management of Nuclear Materials) based on common physical and chemical characteristics and common material management strategies and to relate these groupings to Nuclear Materials Management Safeguards and Security (NMMSS) records. A database was constructed using 843 storage records from 70 responding sites. The database and an initial report summarizing storage issues were issued to participating Field Offices and DP-27 for comment. This report presents the background for the Storage Study and an initial, unclassified summary of storage issues and concerns identified by the sites

  1. Interim and final storage casks

    International Nuclear Information System (INIS)

    Stumpfrock, L.; Kockelmann, H.

    2012-01-01

    The disposal of radioactive waste is a huge social challenge in Germany and all over the world. As is well known the search for a site for a final repository for high-level waste in Germany is not complete. Therefore, interim storage facilities for radioactive waste were built at plant sites in Germany. The waste is stored in these storage facilities in appropriate storage and transport casks until the transport in a final repository can be carried out. Licensing of the storage and transport casks aimed for use in the public space is done according to the traffic laws and for handling in the storage facility according to nuclear law. Taking into account the activity of the waste to be stored, different containers are in use, so that experience is available from the licensing and operation in interim storage facilities. The large volume of radioactive waste to be disposed of after the shut-down of power generation in nuclear power stations makes it necessary for large quantities of licensed storage and transport casks to be provided soon.

  2. Opportunities in independent gas storage

    International Nuclear Information System (INIS)

    Daniel, R.

    1999-01-01

    The range of business opportunities currently available for the midstream oil and gas business were discussed with particular focus on storage opportunities. Alberta Energy Co. (AEC) Ltd.'s two midstream business units include AEC Pipelines and Gas Processing, and AEC Storage and Hub Services. These two businesses provide the company with good investment returns, stable cash flow, and some significant strategic synergies with their exploration and production businesses. In 1988, the AECO C Hub in southeastern Alberta was created as an outgrowth of AEC's gas production operations on the Suffield block, where they had depleted gas reservoirs with high rock quality suitable for high deliverability storage. With the AECO C Hub, AEC was able to offer firm storage contracts of from 1 to 20 years, and to introduce short term interruptible parking and lending services, title exchange, a spot price index for greater price discovery, and an electronic nomination system. AEC is currently completing construction of their second commercial storage facility, the Wild Goose project, in northern California. D ebottlenecking' the Western Canada supply basin should provide additional opportunities for further expansion not only for AEC but also for other midstream service providers. Opportunities are especially available in the areas of new storage facilities to serve location-specific needs, replacement of declining storage capacity, replacement of retiring facilities, technological optimization of existing facilities, more flexible, higher deliverability facilities and commercial optimization of existing facilities. A map of the hubs and market centres of North America are included. 5 figs

  3. Lithium ion storage between graphenes

    Directory of Open Access Journals (Sweden)

    Chan Yue

    2011-01-01

    Full Text Available Abstract In this article, we investigate the storage of lithium ions between two parallel graphene sheets using the continuous approximation and the 6-12 Lennard-Jones potential. The continuous approximation assumes that the carbon atoms can be replaced by a uniform distribution across the surface of the graphene sheets so that the total interaction potential can be approximated by performing surface integrations. The number of ion layers determines the major storage characteristics of the battery, and our results show three distinct ionic configurations, namely single, double, and triple ion forming layers between graphenes. The number densities of lithium ions between the two graphenes are estimated from existing semi-empirical molecular orbital calculations, and the graphene sheets giving rise to the triple ion layers admit the largest storage capacity at all temperatures, followed by a marginal decrease of storage capacity for the case of double ion layers. These two configurations exceed the maximum theoretical storage capacity of graphite. Further, on taking into account the charge-discharge property, the double ion layers are the most preferable choice for enhanced lithium storage. Although the single ion layer provides the least charge storage, it turns out to be the most stable configuration at all temperatures. One application of the present study is for the design of future high energy density alkali batteries using graphene sheets as anodes for which an analytical formulation might greatly facilitate rapid computational results.

  4. Safety considerations for compressed hydrogen storage systems

    International Nuclear Information System (INIS)

    Gleason, D.

    2006-01-01

    An overview of the safety considerations for various hydrogen storage options, including stationary, vehicle storage, and mobile refueling technologies. Indications of some of the challenges facing the industry as the demand for hydrogen fuel storage systems increases. (author)

  5. Ultra-High Density Spectral Storage Materials

    National Research Council Canada - National Science Library

    Hasan, Zameer U

    2002-01-01

    .... Being atomic scale storage, spectral storage has the potential of providing orders of magnitude denser memories than present day memories that depend on the hulk properties of the storage medium...

  6. The SERI solar energy storage program

    Science.gov (United States)

    Copeland, R. J.; Wright, J. D.; Wyman, C. E.

    1980-01-01

    In support of the DOE thermal and chemical energy storage program, the solar energy storage program (SERI) provides research on advanced technologies, systems analyses, and assessments of thermal energy storage for solar applications in support of the Thermal and Chemical Energy Storage Program of the DOE Division of Energy Storage Systems. Currently, research is in progress on direct contact latent heat storage and thermochemical energy storage and transport. Systems analyses are being performed of thermal energy storage for solar thermal applications, and surveys and assessments are being prepared of thermal energy storage in solar applications. A ranking methodology for comparing thermal storage systems (performance and cost) is presented. Research in latent heat storage and thermochemical storage and transport is reported.

  7. Freezing and refrigerated storage in fisheries

    National Research Council Canada - National Science Library

    Johnston, W. A

    1994-01-01

    ...; the factors affecting cold storage conditions, etc. In addition, the publication describes the methods used to calculate cold storage refrigeration loads as well as the costs of freezing and cold storage...

  8. ICI optical data storage tape: An archival mass storage media

    Science.gov (United States)

    Ruddick, Andrew J.

    1993-01-01

    At the 1991 Conference on Mass Storage Systems and Technologies, ICI Imagedata presented a paper which introduced ICI Optical Data Storage Tape. This paper placed specific emphasis on the media characteristics and initial data was presented which illustrated the archival stability of the media. More exhaustive analysis that was carried out on the chemical stability of the media is covered. Equally important, it also addresses archive management issues associated with, for example, the benefits of reduced rewind requirements to accommodate tape relaxation effects that result from careful tribology control in ICI Optical Tape media. ICI Optical Tape media was designed to meet the most demanding requirements of archival mass storage. It is envisaged that the volumetric data capacity, long term stability and low maintenance characteristics demonstrated will have major benefits in increasing reliability and reducing the costs associated with archival storage of large data volumes.

  9. Polarized particles in storage rings

    International Nuclear Information System (INIS)

    Derbenev, Ya.S.; Kondratenko, A.M.; Serednyakov, S.I.; Skrinskij, A.N.; Tumajkin, G.M.; Shatunov, Yu.M.

    1977-01-01

    Experiments with polarized beams on the VEPP-2M and SPEAK storage rings are described. Possible methods of producing polarized particle beams in storage rings as well as method of polarization monitoring are counted. Considered are the processes of radiation polarization of electrons and positrons. It is shown, that to preserve radiation polarization the introduction of regions with a strong sign-variable magnetic field is recommended. Methods of polarization measurement are counted. It is suggested for high energies to use dependence of synchrotron radiation power on transverse polarization of electrons and positrons. Examples of using polarizability of colliding beams in storage rings are presented

  10. Grand Challenges facing Storage Systems

    CERN Multimedia

    CERN. Geneva

    2004-01-01

    In this talk, we will discuss the future of storage systems. In particular, we will focus on several big challenges which we are facing in storage, such as being able to build, manage and backup really massive storage systems, being able to find information of interest, being able to do long-term archival of data, and so on. We also present ideas and research being done to address these challenges, and provide a perspective on how we expect these challenges to be resolved as we go forward.

  11. Carbon material for hydrogen storage

    Science.gov (United States)

    Bourlinos, Athanasios; Steriotis, Theodore; Stubos, Athanasios; Miller, Michael A

    2016-09-13

    The present invention relates to carbon based materials that are employed for hydrogen storage applications. The material may be described as the pyrolysis product of a molecular precursor such as a cyclic quinone compound. The pyrolysis product may then be combined with selected transition metal atoms which may be in nanoparticulate form, where the metals may be dispersed on the material surface. Such product may then provide for the reversible storage of hydrogen. The metallic nanoparticles may also be combined with a second metal as an alloy to further improve hydrogen storage performance.

  12. Troubleshooting vSphere storage

    CERN Document Server

    Preston, Mike

    2013-01-01

    This is a step-by-step example-oriented tutorial aimed at showing the reader how to troubleshoot a variety of vSphere storage problems, and providing the reader with solutions that can be completed with minimal effort and time in order to limit damage to work.If you are a vSphere administrator, this is the book for you. This book will provide you with 'need to know' information about the various storage transports that ESXi utilizes, the tools and techniques we can use to identify problems, and the fundamental knowledge and steps to take to troubleshoot storage-related issues. Prior knowledge

  13. Energy storage for sustainable microgrid

    CERN Document Server

    Gao, David Wenzhong

    2015-01-01

    Energy Storage for Sustainable Microgrid addresses the issues related to modelling, operation and control, steady-state and dynamic analysis of microgrids with ESS. This book discusses major electricity storage technologies in depth along with their efficiency, lifetime cycles, environmental benefits and capacity, so that readers can envisage which type of storage technology is best for a particular microgrid application. This book offers solutions to numerous difficulties such as choosing the right ESS for the particular microgrid application, proper sizing of ESS for microgrid, as well as

  14. Monitored Retrievable Storage conceptual system study: metal storage casks

    International Nuclear Information System (INIS)

    Unterzuber, R.; Cross, T.E.; Krasicki, B.R.

    1983-08-01

    A description of the metal cask storage facility concept is presented with the operations required to handle the spent fuel or high-level wastes and transuranic wastes. A generic Receiving and Handling Facility, provided by PNL, has been used for this study. Modifications to the storage delivery side of the handling facility, necessary to couple the Receiving and Handling Facility with the storage facility, are described. The equipment and support facilities needed for the storage facility are also described. Two separate storage facilities are presented herein: one for all spent fuel storage, and one for storage of high-level waste (HLW) and transuranic waste (TRU). Each facility is described for the capacities and rates defined by PNL in the Concept Technical Performance Criteria and Base Assumptions (see Table 1.3-1). Estimates of costs and time-distributions of expenditures have been developed to construct, operate, and decommission the conceptual MRS facilities in mid-1983 dollars, for the base cases given using the cost categories and percentages provided by PNL. Cost estimates and time-distributions of expenditures have also been developed to expand the facility throughput rate from 1800 MTU to 3000 MTU, and to expand the facility storage capacity from 15,000 MTU to 72,00 MTU. The life cycle cost of the facility for the bounding cases of all spent fuel and all HLW and TRU, using the time-distributions of costs developed above and assuming a two percent per year discount rate, are also presented. 3 references, 16 figures, 18 tables

  15. Influence of available resources on medical practitioners' decision-making process and practice: study of a reference hospital emergency department Influencia de los recursos disponibles en la práctica clínica: estudio en una unidad de urgencias de un hospital de referencia

    Directory of Open Access Journals (Sweden)

    Juan Viñas Salas

    2007-04-01

    Full Text Available Objective: To evaluate variations in the observation period in the emergency department (ED in response to bed availability. Methods: A quasi-experimental pre-test post-test study without a control group was conducted in the ED observation ward over 2 1-month periods. During this time the only variable that changed was the number of beds available, which decreased from 20 (pre-test period to 16 (post-test period. Results: The ED attended 7,725 patients: 3,706 patients in pre-test period, 335 of whom were admitted to the observation ward, with an average length of stay of 1,105.4 minutes per patient, and 4,019 patients in post-test period, 570 of whom were admitted to the observation ward, with an average length of stay of 686.1 minutes per patient (p Objetivo: Evaluar la variación del indicador "periodo de tiempo de observación" dedicado a cada paciente, en respuesta a una reducción del número de camas disponibles. Métodos: Se realizó un estudio «quasiexperimental preprueba postprueba» sin grupo control en una unidad de urgencias durante 2 períodos de un mes. En este tiempo el único cambio fue el número de camas disponibles, que disminuyeron de 20 (período A a 16 (período B. Resultados: El servicio de urgencias atendió a 7.725 pacientes: 3.706 pacientes en el período A, 335 de los cuales fueron admitidos en la unidad de observación con una estancia media de 1.105,4 minutos por paciente; y 4.019 pacientes en el período B, 570 de los cuales fueron admitidos en la unidad de observación con una estancia media de 686,1 minutos por paciente (p < 0,001. No hubo variaciones en la mortalidad, readmisiones o quejas. Conclusiones: Una disminución en el número de camas disponibles para observación comporta una reducción en el tiempo de estancia de los pacientes.

  16. Type I Glycogen Storage Disease

    Science.gov (United States)

    ... Legacy Society Make Gifts of Stock Donate Your Car Personal Fundraising Partnership & Support Share Your Story Spread the Word Give While You Shop Contact Us Donate Now Glycogen Storage Disease Type ...

  17. Autumn study on storage rings

    CERN Multimedia

    1974-01-01

    The first two weeks of October have seen storage ring people from accelerator Laboratories throughout the world at CERN to study the fundamental problems of very high energy protonproton colliding beam machines.

  18. Solid-State Hydrogen Storage

    Data.gov (United States)

    National Aeronautics and Space Administration — This project will develop a method for converting metals to metal hydrides at low pressures for hydrogen storage systems with high efficiency with respect to volume...

  19. Cryogenic Propellant Storage and Transfer

    Data.gov (United States)

    National Aeronautics and Space Administration — Space Flight Demonstration development has been canceled in favor of a ground test bed development for of passive/active cryogenic propellant storage, transfer, and...

  20. Type I Glycogen Storage Disease

    Science.gov (United States)

    ... the most common form of glycogen storage disease, accounting for 25% of all cases. It is an ... Links Videos Webinars About ALF OVERVIEW Programs About Liver Disease Ask the Experts People ALF ...

  1. Storage Tank Legionella and Community

    Data.gov (United States)

    U.S. Environmental Protection Agency — Storage Tank Legionella and Community. This dataset is associated with the following publication: Qin, K., I. Struewing, J. Santodomingo, D. Lytle, and J. Lu....

  2. ALICE bags data storage accolades

    CERN Multimedia

    2007-01-01

    ComputerWorld has recognized CERN with an award for the 'Best Practices in Storage' for ALICE's data acquisition system, in the category of 'Systems Implementation'. The award was presented to the ALICE DAQ team on 18 April at a ceremony in San Diego, CA. (Top) ALICE physicist Ulrich Fuchs. (Bottom) Three of the five storage racks for the ALICE Data Acquisition system (Photo Antonio Saba). Between 16 and19 April, one thousand people from data storage networks around the world gathered to attend the biannual Storage Networking World Conference. Twenty-five companies and organizations were celebrated as finalists, and five of those were given honorary awards-among them CERN, which tied for first place in the category of Systems Implementation for the success of the ALICE Data Acquisition System. CERN was one of five finalists in this category, which recognizes the winning facility for 'the successful design, implementation and management of an interoperable environment'. 'Successful' could include documentati...

  3. Complex Hydrides for Hydrogen Storage

    Energy Technology Data Exchange (ETDEWEB)

    Slattery, Darlene; Hampton, Michael

    2003-03-10

    This report describes research into the use of complex hydrides for hydrogen storage. The synthesis of a number of alanates, (AIH4) compounds, was investigated. Both wet chemical and mechano-chemical methods were studied.

  4. Old radioactive waste storage sites

    International Nuclear Information System (INIS)

    2008-01-01

    After a recall of the regulatory context for the management of old sites used for the storage of radioactive wastes with respect with their activity, the concerned products, the disposal or storage type, this document describes AREVA's involvement in the radioactive waste management process in France. Then, for the different kinds of sites (currently operated sites having radioactive waste storage, storage sites for uranium mineral processing residues), it indicates their location and name, their regulatory status and their control authority, the reference documents. It briefly presents the investigation on the long term impact of uranium mineral processing residues on health and environment, evokes some aspects of public information transparency, and presents the activities of an expertise group on old uranium mines. The examples of the sites of Bellezane (uranium mineral processing residues) and COMURHEX Malvesi (assessment of underground and surface water quality at the vicinity of this installation) are given in appendix

  5. Storage facility for radioactive wastes

    International Nuclear Information System (INIS)

    Okada, Kyo

    1998-01-01

    Canisters containing high level radioactive wastes are sealed in overpacks in a receiving building constructed on the ground. A plurality of storage pits are formed in a layered manner vertically in multi-stages in deep underground just beneath the receiving building, for example underground of about 1000m from the ground surface. Each of the storage pits is in communication with a shaft which vertically communicates the receiving building and the storage pits, and is extended plainly in a horizontal direction from the shaft. The storage pit comprises an overpack receiving chamber, a main gallery and a plurality of galleries. A plurality of holes for burying the overpacks are formed on the bottom of the galleries in the longitudinal direction of the galleries. A plurality of overpack-positioning devices which run in the main gallery and the galleries by remote operation are disposed in the main gallery and the galleries. (I.N.)

  6. Photovoltaic power systems energy storage

    International Nuclear Information System (INIS)

    Buldini, P.L.

    1991-01-01

    Basically, the solar photovoltaic power system consists of: Array of solar panels; Charge/voltage stabilizer; Blocking diode and Storage device. The storage device is a very important part of the system due to the necessity to harmonize the inevitable time shift between energy supply and demand. As energy storage, different devices can be utilized, such as hydropumping, air or other gas compression, flywheel, superconducting magnet, hydrogen generation and so on, but actually secondary (rechargeable) electrochemical cells appear to be the best storage device, due to the direct use for recharge of the d.c. current provided by the solar panels, without any intermediate step of energy transformation and its consequent loss of efficiency

  7. AB Levitator and Electricity Storage

    OpenAIRE

    Bolonkin, Alexander

    2007-01-01

    The author researched this new idea - support of flight by any aerial vehicles at significant altitude solely by the magnetic field of the planet. It is shown that current technology allows humans to create a light propulsion (AB engine) which does not depend on air, water or ground terrain. Simultaniosly, this revolutionary thruster is a device for the storage of electricity which is extracted and is replenished (during braking) from/into the storage with 100 percent efficiency. The relative...

  8. Compressed air energy storage system

    Science.gov (United States)

    Ahrens, Frederick W.; Kartsounes, George T.

    1981-01-01

    An internal combustion reciprocating engine is operable as a compressor during slack demand periods utilizing excess power from a power grid to charge air into an air storage reservoir and as an expander during peak demand periods to feed power into the power grid utilizing air obtained from the air storage reservoir together with combustible fuel. Preferably the internal combustion reciprocating engine is operated at high pressure and a low pressure turbine and compressor are also employed for air compression and power generation.

  9. Superconductive energy storage magnet study

    International Nuclear Information System (INIS)

    Rhee, S.W.

    1982-01-01

    Among many methods of energy storages the superconducting energy storage has been considered as the most promising method. Many related technical problems are still unsolved. One of the problems is the magnetizing and demagnetizing loss of superconducting coil. This loss is mainly because of hysteresis of pinning force. In this paper the hysteresis loss is calculated and field dependence of the a.c. losses is explained. The ratio of loss and stored energy is also calculated. (Author)

  10. Hydrogen Storage In Nanostructured Materials

    OpenAIRE

    Assfour, Bassem

    2011-01-01

    Hydrogen is an appealing energy carrier for clean energy use. However, storage of hydrogen is still the main bottleneck for the realization of an energy economy based on hydrogen. Many materials with outstanding properties have been synthesized with the aim to store enough amount of hydrogen under ambient conditions. Such efforts need guidance from material science, which includes predictive theoretical tools. Carbon nanotubes were considered as promising candidates for hydrogen storag...

  11. Temporary storage area characterization report

    International Nuclear Information System (INIS)

    1990-01-01

    The preferred alternative identified in the Remedial Investigation/Feasibility Study (RI/FS) for the Weldon Spring Quarry Bulk Wastes is to remove the wastes from the quarry and transport them by truck to temporary storage facility at the chemical plant site. To support the RI/FS, this report provides data to characterize the temporary storage area (TSA) site and to ensure the suitability of the proposed location. 31 refs., 14 figs., 7 tabs

  12. Development of spent fuel dry storage technology

    International Nuclear Information System (INIS)

    Maruoka, Kunio; Matsunaga, Kenichi; Kunishima, Shigeru

    2000-01-01

    The spent fuels are the recycle fuel resources, and it is very important to store the spent fuels in safety. There are two types of the spent fuel interim storage system. One is wet storage system and another is dry storage system. In this study, the dry storage technology, dual purpose metal cask storage and canister storage, has been developed. For the dual purpose metal cask storage, boronated aluminum basket cell, rational cask body shape and shaping process have been developed, and new type dual purpose metal cask has been designed. For the canister storage, new type concrete cask and high density vault storage technology have been developed. The results of this study will be useful for the spent fuel interim storage. Safety and economical spent fuel interim storage will be realized in the near future. (author)

  13. Storage of Human Breast Milk

    Directory of Open Access Journals (Sweden)

    Gamze Can

    2007-10-01

    Full Text Available Storage of human breast milk by freezing or refrigeration of milk has been recommended especially at some social circumstances of most mothers who are regularly separated from their infants because of work. The greatest fear that has hindered the prospects of in - vitro storage of breast milk for any considerable period of time is the possibility of bacterial contamination and growth of infectious pathogens in the stored milk, there by rendering them unsafe for human consumption. The storage container can influence the cell content of milk, as the cells adhere to the walls of a glass container but not to polyethylene or polypropylene containers. Bacteriological examination of refrigerated milks has proven their safety for human consumption for even up to 72 h. For a storage over longer periods up to 1 month, freezing at - 20 0C could be recommended, but the most preferred method, especially for longer storage would be fresh freezing at - 70 0C, if affordable or available. The nutrient value of human milk is essentially unchanged, but the immunological properties are reduced by various storage techniques. Boiling and microwave radiation have not been recommended. [TAF Prev Med Bull 2007; 6(5.000: 375-379

  14. Geological storage of CO2

    International Nuclear Information System (INIS)

    Czernichowski-Lauriol, I.

    2005-01-01

    The industrial storage of CO 2 is comprised of three steps: - capture of CO 2 where it is produced (power plants, cement plants, etc.); - transport (pipe lines or boats); - storage, mainly underground, called geological sequestration... Three types of reservoirs are considered: - salted deep aquifers - they offer the biggest storage capacity; - exhausted oil and gas fields; - non-exploited deep coal mine streams. The two latter storage types may allow the recovery of sellable products, which partially or totally offsets the storage costs. This process is largely used in the petroleum industry to improve the productivity of an oil field, and is called FOR (Enhanced Oil Recovery). A similar process is applied in the coal mining industry to recover the imprisoned gas, and is called ECBM (Enhanced Coal Bed methane). Two storage operations have been initiated in Norway and in Canada, as well as research programmes in Europe, North America, Australia and Japan. International organisations to stimulate this technology have been created such as the 'Carbon Sequestration Leadership Forum' and 'the Intergovernmental Group for Climate Change'. This technology will be taken into account in the instruments provided by the Tokyo Protocol. (author)

  15. NV energy electricity storage valuation :

    Energy Technology Data Exchange (ETDEWEB)

    Ellison, James F.; Bhatnagar, Dhruv; Samaan, Nader; Jin, Chunlian

    2013-06-01

    This study examines how grid-level electricity storage may benefit the operations of NV Energy, and assesses whether those benefits are likely to justify the cost of the storage system. To determine the impact of grid-level storage, an hourly production cost model of the Nevada Balancing Authority ("BA") as projected for 2020 was created. Storage was found to add value primarily through the provision of regulating reserve. Certain storage resources were found likely to be cost-effective even without considering their capacity value, as long as their effectiveness in providing regulating reserve was taken into account. Giving fast resources credit for their ability to provide regulating reserve is reasonable, given the adoption of FERC Order 755 ("Pay-for-performance"). Using a traditional five-minute test to determine how much a resource can contribute to regulating reserve does not adequately value fast-ramping resources, as the regulating reserve these resources can provide is constrained by their installed capacity. While an approximation was made to consider the additional value provided by a fast-ramping resource, a more precise valuation requires an alternate regulating reserve methodology. Developing and modeling a new regulating reserve methodology for NV Energy was beyond the scope of this study, as was assessing the incremental value of distributed storage.

  16. Optimal design and application of a compound cold storage system combining seasonal ice storage and chilled water storage

    NARCIS (Netherlands)

    Yan, C.; Shi, W.; Li, X.; Zhao, Y.

    2016-01-01

    Seasonal cold storage using natural cold sources for cooling is a sustainable cooling technique. However, this technique suffers from limitations such as large storage space and poor reliability. Combining seasonal storage with short-term storage might be a promising solution while it is not

  17. A concept of an electricity storage system with 50 MWh storage capacity

    Directory of Open Access Journals (Sweden)

    Józef Paska

    2012-06-01

    Full Text Available Electricity storage devices can be divided into indirect storage technology devices (involving electricity conversion into another form of energy, and direct storage (in an electric or magnetic fi eld. Electricity storage technologies include: pumped-storage power plants, BES Battery Energy Storage, CAES Compressed Air Energy Storage, Supercapacitors, FES Flywheel Energy Storage, SMES Superconducting Magnetic Energy Storage, FC Fuel Cells reverse or operated in systems with electrolysers and hydrogen storage. These technologies have diff erent technical characteristics and economic parameters that determine their usability. This paper presents two concepts of an electricity storage tank with a storage capacity of at least 50 MWh, using the BES battery energy storage and CAES compressed air energy storage technologies.

  18. Available phosphorus and sulphur, exchangeable aluminum and remaining phosphorus in rhodic eutrudox submitted to gypsum cultivated with wheat and soybean Fósforo e enxofre disponível, alumínio trocável e fósforo remanescente em latossolo vermelho submetido ao gesso cultivado com trigo e soja

    Directory of Open Access Journals (Sweden)

    Leandro Rampim

    2013-09-01

    Full Text Available The response to gypsum as a supplier of nutrients in the subsurface provides better root distribution for annual crops plants and thus provides use of larger volume of soil increasing the uptake of water and nutrients and therefore increased productivity, especially with evidence of interference of gypsum in phosphorus available in the soil. In this study evaluated the use of gypsum (CaSO4.2H2O the levels of available phosphorus and sulfur, exchangeable aluminum and interference in the remaining phosphorus in the soil at 0-0.10, 0.10-0.20; 0.20-0.40 m of deep in Rhodic Eutrudox in no tillage and crop yields of wheat and soybean. We conducted sampling of soil at six and 12 months after surface application of 1000, 2000, 3000, 4000 and 5000 kg ha-1 gypsum and treatment without application of gypsum. The use of gypsum increased linearly the S content is available in layers from 0-0,10, 0,10-0,20 and 0,20 to 0,40 m deep, with the minimum content of available P at a dose of 2200 kg ha-1 and exchangeable Al with a dose of 3000 kg ha-1 layers evaluated, however, did not influence the values of remaining P. The use of gypsum increased linearly the S content available at depths of 0-0.10, 0.10-0.20 and 0.20-0.40 m, minimum P content available at the dose of 3166 kg ha-1 and exchangeable Al minimum point at the dose of 3300 kg ha-1 at a depth of 0.20-0.40 m however, did not affect the remaining P values. The use of gypsum increased the productivity of wheat, but did not influence soybean yield. A resposta ao gesso agrícola como fornecedor de nutrientes na subsuperfície proporciona melhor distribuição de raízes para culturas anuais e assim propicia às plantas explorar maior volume de solo aumentando a absorção de água e nutrientes e consequentemente incrementar a produtividade, com indícios da interferência do gesso no teor de fósforo disponível no solo. Neste trabalho o objetivo foi avaliar o uso do gesso agrícola (CaSO4.2H2O nos teores de f

  19. Efeito da adição de fitase associada a diferentes níveis de proteína bruta e fósforo disponível sobre o desempenho e excreção de proteína bruta de frangos de corte

    OpenAIRE

    Andréia Cristina Nakashima Vaz; Ricardo de Albuquerque; Marcelo Landim Brisola; Daniella Carolina Zanardo Donato; Paula Duarte Silva Rangel Garcia

    2009-01-01

    Foram utilizados 504 pintos de linhagem comercial para frangos de corte (Ag Ross 308) de 1 dia de idade, distribuídos em 12 tratamentos com seis repetições. O delineamento experimental utilizado foi de blocos casualizados em esquema factorial de 2x2x3, com dois níveis de fósforo disponível (0,45 e 0,34%), dois níveis de fitase (0 e 1200 FTU/kg) e três níveis de proteína bruta (22,5; 20,5 e 18,5%). Houve um aumento do peso das aves que receberam dietas contendo a enzima fitase embora não tenha...

  20. Storage and security of supply

    International Nuclear Information System (INIS)

    Svensson, B.R.

    1990-01-01

    The paper considers the relationship between energy security and the consumption, supply and storage of natural gas, as agreed between the IEA Member countries. Additional supplies of natural gas should be obtained from as diverse sources as possible with emphasis on indigenous OECD sources. Instruments for coping with supply disruptions, such as underground storage of gas, interruptible gas sales, and dual-fired capabilities should be strengthened. These instruments, however, in combination with contractual swing factors, are also used to cope with fluctuations in demand for natural gas. The future demand and supply of natural gas in OECD Europe and North America is discussed. In OECD Europe the growth in residential and commercial demand is expected to be sustained, and, in both OECD Europe and North America, there is a further potential demand for gas for electricity generation. As residential and commercial demand (which is very temperature-dependent) grows, the need for storage facilities, interruptible sales contracts, dual-fired capabilities and swing factors in contracts will increase in order to balance the load. An expansion of gas demand for baseload electricity generation could, however, increase the load factor. Figures for the size of the storage capacity in 1987 and plans for future increases show that storage capacity is increasing. It is concluded that new underground storage represents an important contribution to the strengthening of each country's ability both to balance loads and to deal with supply disruptions. The IEA countries rely on the gas utilities to provide storage and other instruments for both purposes. (author). 2 figs, 3 tabs

  1. Development of Seasonal Storage in Denmark

    DEFF Research Database (Denmark)

    Heller, Alfred

    2000-01-01

    National survey on seasonal (thermal, large-scale) storage activities in Denmark. A storage programme under the Danish Energy Agency. Programme background, objectives, activities, projects and results.Technologies presented: Pit water storage, gravel water storage with pipe heat exchangers, lining...... materials for pit and lid designs....

  2. Combined solar collector and energy storage system

    Science.gov (United States)

    Jensen, R. N. (Inventor)

    1980-01-01

    A combined solar energy collector, fluid chiller and energy storage system is disclosed. A movable interior insulated panel in a storage tank is positionable flush against the storage tank wall to insulate the tank for energy storage. The movable interior insulated panel is alternately positionable to form a solar collector or fluid chiller through which the fluid flows by natural circulation.

  3. Storage fee analysis for a retrievable surface storage facility

    International Nuclear Information System (INIS)

    Field, B.B.; Rosnick, C.K.

    1973-12-01

    Conceptual design studies are in progress for a Water Basin Concept (WBC) and an alternative Sealed Storage Cask Concept (SSCC) of a Retrievable Surface Storage Facility (RSSF) intended as a Federal government facility for storing high-level radioactive wastes until a permanent disposal method is established. The RSSF will be a man-made facility with a design life of at least 100 y, and will have capacity to store all of the high-level waste from the reprocessing of nuclear power plant spent fuels generated by the industry through the year 2000. This report is a basic version of ARH-2746, ''Retrievable Surface Storage Facility, Water Basin Concept, User Charge Analysis.'' It is concerned with the issue of establishing a fee to cover the cost of storing nuclear wastes both in the RSSF and at the subsequent disposal facility. (U.S.)

  4. Compartmentalized storage tank for electrochemical cell system

    Science.gov (United States)

    Piecuch, Benjamin Michael (Inventor); Dalton, Luke Thomas (Inventor)

    2010-01-01

    A compartmentalized storage tank is disclosed. The compartmentalized storage tank includes a housing, a first fluid storage section disposed within the housing, a second fluid storage section disposed within the housing, the first and second fluid storage sections being separated by a movable divider, and a constant force spring. The constant force spring is disposed between the housing and the movable divider to exert a constant force on the movable divider to cause a pressure P1 in the first fluid storage section to be greater than a pressure P2 in the second fluid storage section, thereby defining a pressure differential.

  5. Isotopic data to study the mechanism of the oxidation of mercaptoacetic acid; Donnees isotopiques pour l'etude du mecanisme d'oxydation de l'acide mercaptoacetique; Izotopnyj metod issledovaniya mekhanizma okisleniya merkapgouksusnoj kisloty; Estudio del mecanismo de oxidacion del acido mercaptoacetico por medio de datos obtenidos con radioisotopos

    Energy Technology Data Exchange (ETDEWEB)

    Gal, D [Central Isotope Laboratory, University of Szeged (Hungary); Guczi, L [Department of Radiology, Elelmiszeripari Kutato Intezet, Budapest (Hungary)

    1962-03-15

    }S augmentait considerablement le taux d'absorption d'oxygene, tant dans le processus de catalysation par le fer qu'en l'absence de fer. Au cours de la reaction, on a mesure la concentration du sulfure, son activite specifique et son activite totale. En. partant de ces donnees, et en utilisant la methode d'etude cinetique au moyen d'isotopes, mise au point par Neiman et ses collaborateurs, on a pu calculer le taux de formation de sulfure et le taux de son oxydation ulterieure. La comparison de ces donnees avec d'autres donnees cinetiques revele que l'oxydation de l'acide mercaptoacetique en phase liquide est une reaction en chaine ramifiee, l'un des principaux elements de cette chaine etant la formation de Na{sub 2}S et son oxydation ulterieure. On a constate en outre qu'il se forme du sulfate, lors de la reaction, mais seulement a partir du sulfure mineral. Le fer catalyse la formation de disulfure organique et, de ce fait, influe aussi sur la formation de sulfure. (author) [Spanish] Numerosos investigadores han estudiado la autooxidacion en fase liquida, por oxigeno molecular, de compuestos que contienen un grupo mercaptano; si bien han llegado a la conclusion de que se forman sulfuros en el curso de la reaccion, el mecanismo exacto del proceso no se conoce. Los autores estudiaron la autooxidacion del acido mercaptoacetico a 50{sup o} C y pH 8 en presencia de complexon IV y de hierro. Anadieron al sistema Na{sub 2}S marcado con {sup 35}S y comprobaron que este compuesto aumenta notablemente la velocidad de absorcion de oxigeno tanto en las reacciones catalizadas por hierro como en las que transcurren en ausencia de iones de este metal. En el curso de la reaccion, los autores midieron la concentracion del sulfuro, su actividad especifica y su actividad total. Gracias a estos datos y empleando el metodo isotopico cinetico establecido por Neiman y colaboradores, pudieron calcular la velocidad de formacion del sulfuro y la velocidad de su oxidacion subsiguiente. Por

  6. Robust holographic storage system design.

    Science.gov (United States)

    Watanabe, Takahiro; Watanabe, Minoru

    2011-11-21

    Demand is increasing daily for large data storage systems that are useful for applications in spacecraft, space satellites, and space robots, which are all exposed to radiation-rich space environment. As candidates for use in space embedded systems, holographic storage systems are promising because they can easily provided the demanded large-storage capability. Particularly, holographic storage systems, which have no rotation mechanism, are demanded because they are virtually maintenance-free. Although a holographic memory itself is an extremely robust device even in a space radiation environment, its associated lasers and drive circuit devices are vulnerable. Such vulnerabilities sometimes engendered severe problems that prevent reading of all contents of the holographic memory, which is a turn-off failure mode of a laser array. This paper therefore presents a proposal for a recovery method for the turn-off failure mode of a laser array on a holographic storage system, and describes results of an experimental demonstration. © 2011 Optical Society of America

  7. Hydrogen storage in carbon nanotubes.

    Science.gov (United States)

    Hirscher, M; Becher, M

    2003-01-01

    The article gives a comprehensive overview of hydrogen storage in carbon nanostructures, including experimental results and theoretical calculations. Soon after the discovery of carbon nanotubes in 1991, different research groups succeeded in filling carbon nanotubes with some elements, and, therefore, the question arose of filling carbon nanotubes with hydrogen by possibly using new effects such as nano-capillarity. Subsequently, very promising experiments claiming high hydrogen storage capacities in different carbon nanostructures initiated enormous research activity. Hydrogen storage capacities have been reported that exceed the benchmark for automotive application of 6.5 wt% set by the U.S. Department of Energy. However, the experimental data obtained with different methods for various carbon nanostructures show an extreme scatter. Classical calculations based on physisorption of hydrogen molecules could not explain the high storage capacities measured at ambient temperature, and, assuming chemisorption of hydrogen atoms, hydrogen release requires temperatures too high for technical applications. Up to now, only a few calculations and experiments indicate the possibility of an intermediate binding energy. Recently, serious doubt has arisen in relation to several key experiments, causing considerable controversy. Furthermore, high hydrogen storage capacities measured for carbon nanofibers did not survive cross-checking in different laboratories. Therefore, in light of today's knowledge, it is becoming less likely that at moderate pressures around room temperature carbon nanostructures can store the amount of hydrogen required for automotive applications.

  8. Mass storage technology in networks

    Science.gov (United States)

    Ishii, Katsunori; Takeda, Toru; Itao, Kiyoshi; Kaneko, Reizo

    1990-08-01

    Trends and features of mass storage subsystems in network are surveyed and their key technologies spotlighted. Storage subsystems are becoming increasingly important in new network systems in which communications and data processing are systematically combined. These systems require a new class of high-performance mass-information storage in order to effectively utilize their processing power. The requirements of high transfer rates, high transactional rates and large storage capacities, coupled with high functionality, fault tolerance and flexibility in configuration, are major challenges in storage subsystems. Recent progress in optical disk technology has resulted in improved performance of on-line external memories to optical disk drives, which are competing with mid-range magnetic disks. Optical disks are more effective than magnetic disks in using low-traffic random-access file storing multimedia data that requires large capacity, such as in archive use and in information distribution use by ROM disks. Finally, it demonstrates image coded document file servers for local area network use that employ 130mm rewritable magneto-optical disk subsystems.

  9. Feasibility of a subsurface storage

    International Nuclear Information System (INIS)

    1998-11-01

    This report analyses the notion of subsurface storage under the scientifical, technical and legal aspects. This reflection belongs to the studies about long duration storage carried out in the framework of the axis 3 of the December 30, 1991 law. The report comprises 3 parts. The first part is a synthesis of the complete subsurface storage study: definitions, aim of the report, very long duration storage paradigm, description files of concepts, thematic synthesis (legal aspects, safety, monitoring, sites, seismicity, heat transfers, corrosion, concretes, R and works, handling, tailings and dismantlement, economy..), multi-criteria/multi-concept cross-analysis. The second part deals with the technical aspects of the subsurface storage: safety approach (long duration impact, radiation protection, mastery of effluents), monitoring strategy, macroscopic inventory of B-type waste packages, inventory of spent fuels, glasses, hulls and nozzles, geological contexts in the French territory (sites selection and characterization), on-site activities, hydrogeological and geochemical aspects, geo-technical works and infrastructures organization, subsurface seismic effects, cooling modes (ventilation, heat transfer with the geologic environment), heat transfer research programs (convection, poly-phase cooling in porous media), handling constraints, concretes (use, behaviour, durability), corrosion of metallic materials, technical-economical analysis, international context (experience feedback from Sweden (CLAB) and the USA (Yucca Mountain), other European and French facilities). The last part of the report is a graphical appendix with 3-D views and schemes of the different concepts. (J.S.)

  10. Archival storage solutions for PACS

    Science.gov (United States)

    Chunn, Timothy

    1997-05-01

    While they are many, one of the inhibitors to the wide spread diffusion of PACS systems has been robust, cost effective digital archive storage solutions. Moreover, an automated Nearline solution is key to a central, sharable data repository, enabling many applications such as PACS, telemedicine and teleradiology, and information warehousing and data mining for research such as patient outcome analysis. Selecting the right solution depends on a number of factors: capacity requirements, write and retrieval performance requirements, scaleability in capacity and performance, configuration architecture and flexibility, subsystem availability and reliability, security requirements, system cost, achievable benefits and cost savings, investment protection, strategic fit and more.This paper addresses many of these issues. It compares and positions optical disk and magnetic tape technologies, which are the predominant archive mediums today. Price and performance comparisons will be made at different archive capacities, plus the effect of file size on storage system throughput will be analyzed. The concept of automated migration of images from high performance, high cost storage devices to high capacity, low cost storage devices will be introduced as a viable way to minimize overall storage costs for an archive. The concept of access density will also be introduced and applied to the selection of the most cost effective archive solution.

  11. Radioactive waste interim storage in Germany

    International Nuclear Information System (INIS)

    2015-12-01

    The short summary on the radioactive waste interim storage in Germany covers the following issues: importance of interim storage in the frame of radioactive waste management, responsibilities and regulations, waste forms, storage containers, transport of vitrified high-level radioactive wastes from the reprocessing plants, central interim storage facilities (Gorleben, Ahaus, Nord/Lubmin), local interim storage facilities at nuclear power plant sites, federal state collecting facilities, safety, radiation exposure in Germany.

  12. Phase Change Materials for Thermal Energy Storage

    OpenAIRE

    Stiebra, L; Cabulis, U; Knite, M

    2014-01-01

    Phase change materials (PCMs) for thermal energy storage (TES) have become an important subject of research in recent years. Using PCMs for thermal energy storage provides a solution to increase the efficiency of the storage and use of energy in many domestic and industrial sectors. Phase change TES systems offer a number of advantages over other systems (e.g. chemical storage systems): particularly small temperature distance between the storage and retrieval cycles, small unit sizes and lo...

  13. Automatic Sample and Data Processing in Studies of Calcium Metabolism in Rats; Traitement Automatique des Echantillons et des Donnees dans l'Etude du Metabolisme Calcique chez le Rat; Avtomaticheskaya obrabotka obraztsov i dannykh pri izuchenii obmena kal'tsiya u krysy; Tratamiento Automatico de las Muestras y de los Datos en el Estudio del Metabousmo del Calcio en la Rata

    Energy Technology Data Exchange (ETDEWEB)

    Onkelinx, C.; Richelle, L. J.; Debras, J. [Universite de Liege (Belgium)

    1965-10-15

    the standard deviation shown by the measurements for each sample; (2) analysing the specific activity curve of the plasma and expressing it in mathematical terms; comparing the theoretical curve with the experimental measurements; (3) evolving the complete model by calculating the various parameters. The results are printed out in full and also punched onto cards by the computer for further processing later. The advantages of digital over analogue computers for this work are discussed. (author) [French] L'etude du metabolisme calcique du rat en fonction de l'age ou de divers traitements exige une experimentation portant sur de grandes series d'animaux. Ces explorations requierent, d'une part, l'etude de l'evolution avec le temps de la concentration serique d'une dose traceuse de {sup 45}Ca injectees par voie intraveineuse et, d'autre part, la mesure d'un bilan chimique et radiochimique. La combinaison de ces deux types d'informations et leur traitement mathematique conduit a la resolution d'un modele general du metabolisme calcique qui permet de connaitre la taille des compartiments echangeables et la grandeur de differents vecteurs tels que l'absorption intestinale, l'excretion renale et intestinale, le depot et la sortie de calcium de l'os. Les travaux ont ete facilites par le developpement de methodes automatiques de mesure des echantillons et de traitement des donnees, qui font l'objet du memoire. Traitement des echantillons: les mesures de radioactivite sont effectuees sur des echantillons plasmatiques de faible volume (20 a 40 {lambda}) preleves de maniere repetee et sur des collections fecales et urinaires faites entre deux limites de temps. La chaine de mesure utilisee comporte un detecteur a anti-coiencidence de faible bruit de fond, un passeur d'echantillons et un ensemble electronique dont les mesures sont enregistrees par une machine imprimante. Les methodes originales de preparation des echantillons et les performances de la chatoie de mesure sont

  14. Superconductivity, energy storage and switching

    International Nuclear Information System (INIS)

    Laquer, H.L.

    1974-01-01

    The phenomenon of superconductivity can contribute to the technology of energy storage and switching in two distinct ways. On one hand the zero resistivity of the superconductor can produce essentially infinite time constants so that an inductive storage system can be charged from very low power sources. On the other hand, the recovery of finite resistivity in a normal-going superconducting switch can take place in extremely short times, so that a system can be made to deliver energy at a very high power level. Topics reviewed include: physics of superconductivity, limits to switching speed of superconductors, physical and engineering properties of superconducting materials and assemblies, switching methods, load impedance considerations, refrigeration economics, limitations imposed by present day and near term technology, performance of existing and planned energy storage systems, and a comparison with some alternative methods of storing and switching energy. (U.S.)

  15. Digital storage of repeated signals

    International Nuclear Information System (INIS)

    Prozorov, S.P.

    1984-01-01

    An independent digital storage system designed for repeated signal discrimination from background noises is described. The signal averaging is performed off-line in the real time mode by means of multiple selection of the investigated signal and integration in each point. Digital values are added in a simple summator and the result is recorded the storage device with the volume of 1024X20 bit from where it can be output on an oscillograph, a plotter or transmitted to a compUter for subsequent processing. The described storage is reliable and simple device on one base of which the systems for the nuclear magnetic resonapce signal acquisition in different experiments are developed

  16. Storage of hydrogen in metals

    International Nuclear Information System (INIS)

    Wiswall, R.

    1981-01-01

    A review is dedicated to a problem of hydrogen storage as fuel of future, that can be used under various conditions, is easily obtained with the help of other types of energy and can be transformed into them. Data on reversible metal-hydrogen systems, where hydrogen can be obtained by the way of reaction of thermal decomposition are presented. Pressure-temperature-content diagrams, information on concrete Pd-H, TiFe-H, V-N systems are presented and analyzed from the point of view of thermodynamics. A table with thermodynamical characteristics of several hydrides is presented. The majority of known solid hydrides in relation to their use for hydrogen storage are characterized. The review includes information on real or supposed uses in concrete systems: in fuel cells, for levelling of loading of electric plants, in automobile engines, in hydride engines, for heat storage [ru

  17. Proton storage ring summer workshop

    International Nuclear Information System (INIS)

    Lawrence, G.P.; Cooper, R.K.

    1977-10-01

    During the week of August 16, 1976 a Workshop was held at the Los Alamos Scientific Laboratory (LASL) on the Proton Storage Ring (PSR) for the Weapons Neutron Research Facility (WNRF). Written contributions were solicited from each of the participants in the Workshop, and the contributions that were received are presented. The papers do not represent polished or necessarily complete work, but rather represent ''first cuts'' at their respective areas. Topics covered include: (1) background information on the storage ring; (2) WNRF design; (3) rf transient during filling; (4) rf capture; (5) beam bunch compression; (6) transverse space charge limits; (7) transverse resistive instability in the PSR; (8) longitudinal resistive instability; (9) synchrotron frequency splitting; (10) E Quintus Unum--off resonance; (11) first harmonic bunching in the storage ring; (12) kicker considerations; (13) beam extraction; (14) ferrite kicker magnets; and (15) E Quintus Unum: a possible ejection scheme

  18. Carbon capture and storage (CCS)

    International Nuclear Information System (INIS)

    Martin-Amouroux, Jean-Marie

    2016-01-01

    The author first defines what carbon capture and storage (CCS)is, describes more precisely the various technologies, methods and processes involved in carbon capture, carbon transport, and carbon geological storage. He briefly evokes the various applications and uses of CCS. In the second part, he proposes an overview of advances and deadlocks of CCS in the world, of the status of installations and projects, of the development of capture practices in the industry, of some existing and important storage sites, of some pilot installations developed by various industrial actors in different countries (26 installations in the world). He indicates power stations equipped for CCS (in Canada, USA, United-Kingdom, Netherlands, Norway, China, South Korea and United Arab Emirates). He evokes projects which have been given up or postponed. He proposes an overview of policies implemented in different countries (USA, Canada, European Union, Australia, and others) to promote CCS

  19. Onsite LLW storage at Cook

    International Nuclear Information System (INIS)

    MacRae, W.T.

    1994-01-01

    The Donald C. Cook nuclear plant has gained much experience through the onsite storage of low-level radioactive waste. Owned and operated by the Indiana Michigan Power Company, which is owned by American Electric Power, the plant is located in Bridgman, Michigan, on the southeast side of Lake Michigan, about 50 miles from Chicago. In November 1990, waste generators in the state of Michigan were denied access to licensed low-level waste disposal sites because of a lack of progress by the state in developing its own disposal site. Because of this lack, wastes from the Cook plant have been stored onsite for three years. This article covers four issues related to the Cook nuclear plant's experience in the low-level waste storage: storage capacity and waste generation rates, waste form and packages, regulatory issues, and the monitoring of the waste

  20. Spent fuel element storage facility

    International Nuclear Information System (INIS)

    Ukaji, Hideo; Yamashita, Rikuo.

    1981-01-01

    Purpose: To always keep water level of a spent fuel cask pit equal with water level of spent fuel storage pool by means of syphon principle. Constitution: The pool water of a spent fuel storage pool is airtightly communicated through a pipe with the pool water of a spent fuel cask, and a gate is provided between the pool and the cask. Since cask is conveyed into the cask pit as the gate close while conveying, the pool water level is raised an amount corresponding to the volume of the cask, and water flow through scattering pipe and the communication pipe to the storage pool. When the fuel is conveyed out of the cask, the water level is lowered in the amount corresponding to the volume in the cask pit, and the water in the pool flow through the communication pipe to the cask pit. (Sekiya, K.)

  1. EPR ohmic heating energy storage

    International Nuclear Information System (INIS)

    Heck, F.M.; Stillwagon, R.E.; King, E.I.

    1977-01-01

    The Ohmic Heating (OH) Systems for all the Experimental Power Reactor (EPR) designs to date have all used temporary energy storage to assist in providing the OH current charge required to build up the plasma current. The energies involved (0.8 x 10 9 J to 1.9 x 10 9 J) are so large as to make capacitor storage impractical. Two alternative approaches are homopolar dc generators and ac generators. Either of these can be designed for pulse duty and can be made to function in a manner similar to a capacitor in the OH circuit and are therefore potential temporary energy storage devices for OH systems for large tokamaks. This study compared total OH system costs using homopolar and ac generators to determine their relative merits. The total system costs were not significantly different for either type of machine. The added flexibility and the lower maintenance of the ac machine system make it the more attractive approach

  2. Storage containers for radioactive material

    International Nuclear Information System (INIS)

    Cassidy, D.A.; Dates, L.R.; Groh, E.F.

    1981-01-01

    A radioactive material storage system is disclosed for use in the laboratory. This system is composed of the following: a flat base plate with a groove in one surface thereof and a hollow pedestal extending perpendicularly away from the other surface thereof; a sealing gasket in the groove, a cover having a filter therein and an outwardly extending flange which fits over the plate; the groove and the gasket, and a clamp for maintaining the cover and the plate are sealed together, whereby the plate and the cover and the clamp cooperate to provide a storage area for radioactive material readily accessible for use or inventory. Wall mounts are provided to prevent accidental formation of critical masses during storage

  3. High density energy storage capacitor

    International Nuclear Information System (INIS)

    Whitham, K.; Howland, M.M.; Hutzler, J.R.

    1979-01-01

    The Nova laser system will use 130 MJ of capacitive energy storage and have a peak power capability of 250,000 MW. This capacitor bank is a significant portion of the laser cost and requires a large portion of the physical facilities. In order to reduce the cost and volume required by the bank, the Laser Fusion Program funded contracts with three energy storage capacitor producers: Aerovox, G.E., and Maxwell Laboratories, to develop higher energy density, lower cost energy storage capacitors. This paper describes the designs which resulted from the Aerovox development contract, and specifically addresses the design and initial life testing of a 12.5 kJ, 22 kV capacitor with a density of 4.2 J/in 3 and a projected cost in the range of 5 cents per joule

  4. Householders' use of storage heaters

    Energy Technology Data Exchange (ETDEWEB)

    Crawshaw, C M; Williams, D I; Steele, L M

    1986-11-01

    An investigation into the understanding and use of storage heater controls was carried out. The general level of satisfaction with storage heating was high (90%) and most people had a reasonable idea of how the system works, what the controls do and of the tariff costs. However, the study did find substantial areas of ignorance; 37% could not say what controls their heater had and 15% did not know what tariff they were on. This lack of knowledge may prevent users getting the best performance from their heating system, resulting in discomfort and large bills.

  5. Catalyzed borohydrides for hydrogen storage

    Science.gov (United States)

    Au, Ming [Augusta, GA

    2012-02-28

    A hydrogen storage material and process is provided in which alkali borohydride materials are created which contain effective amounts of catalyst(s) which include transition metal oxides, halides, and chlorides of titanium, zirconium, tin, and combinations of the various catalysts. When the catalysts are added to an alkali borodydride such as a lithium borohydride, the initial hydrogen release point of the resulting mixture is substantially lowered. Additionally, the hydrogen storage material may be rehydrided with weight percent values of hydrogen at least about 9 percent.

  6. Prototype plutonium-storage monitor

    International Nuclear Information System (INIS)

    Bliss, M.; Craig, R.A.; Sunberg, D.S.; Warner, R.A.

    1996-01-01

    Pacific Northwest National Laboratory (PNNL) has fabricated cerium-activated lithium silicate scintillating fibers via a hot-downdraw process. These fibers typically have an operational transmission length (e -1 length) of greater than 2 meters. This permits the fabrication of devices that, hitherto, were not possible to consider. A prototype neutron monitor for scrap Pu-storage containers was fabricated and tested for 70 days, taking data with a variety of sources in a high-background environment. These data and their implication in the context of a storage-monitor situation are discussed

  7. Modular Firewalls for Storage Areas

    Science.gov (United States)

    Fedor, O. H.; Owens, L. J.

    1986-01-01

    Giant honeycomb structures assembled in modular units. Flammable materials stored in cells. Walls insulated with firebrick to prevent spread of fire among cells. Portable, modular barrier withstands heat of combustion for limited time and confines combustion products horizontally to prevent fire from spreading. Barrier absorbs heat energy by ablation and not meant to be reused. Designed to keep fires from spreading among segments of solid rocket propellant in storage, barrier erected between storage units of other flammable or explosive materials; tanks of petroleum or liquid natural gas. Barrier adequate for most industrial purposes.

  8. The Cryogenic Storage Ring CSR

    OpenAIRE

    von Hahn, Robert; Becker, Arno; Berg, Felix; Blaum, Klaus; Breitenfeldt, Christian; Fadil, Hisham; Fellenberger, Florian; Froese, Michael; George, Sebastian; Göck, Jürgen; Grieser, Manfred; Grussie, Florian; Guerin, Elisabeth A.; Heber, Oded; Herwig, Philipp

    2016-01-01

    An electrostatic cryogenic storage ring, CSR, for beams of anions and cations with up to 300 keV kinetic energy per unit charge has been designed, constructed, and put into operation. With a circumference of 35 m, the ion-beam vacuum chambers and all beam optics are in a cryostat and cooled by a closed-cycle liquid helium system. At temperatures as low as (5.5 ± 1) K inside the ring, storage time constants of several minutes up to almost an hour were observed for atomic and molecular, anion a...

  9. SSCL DD2 mass storage

    International Nuclear Information System (INIS)

    Mestad, S.L.

    1992-09-01

    The SSCL detector collaboration have determined the lab will need data storage devices capable of handling data rates of 100 megabytes/second and storing several petabytes per year. These needs would be difficult to meet with the typical devices currently available. A new high speed, high density tape drive has bee integrated with an SGI system at the SSCL which is capable of meeting the detector data storage requirements. This paper describes the goals and stages of the integration project, the lessons learned, and the additional work planned to make effective use of the DD2 tape drive

  10. Energy storage for power systems

    CERN Document Server

    Ter-Gazarian, Andrei

    2011-01-01

    The supply of energy from primary sources is not constant and rarely matches the pattern of demand from consumers. Electricity is also difficult to store in significant quantities. Therefore, secondary storage of energy is essential to increase generation capacity efficiency and to allow more substantial use of renewable energy sources that only provide energy intermittently. Lack of effective storage has often been cited as a major hurdle to substantial introduction of renewable energy sources into the electricity supply network.This 2nd edition, without changing the existing structure of the

  11. Hydrogen storage in graphitic nanofibres

    OpenAIRE

    McCaldin, Simon Roger

    2007-01-01

    There is huge need to develop an alternative to hydrocarbons fuel, which does not produce CO2 or contribute to global warming - 'the hydrogen economy' is such an alternative, however the storage of hydrogen is the key technical barrier that must be overcome. The potential of graphitic nanofibres (GNFs) to be used as materials to allow the solid-state storage of hydrogen has thus been investigated. This has been conducted with a view to further developing the understanding of the mechanism(s) ...

  12. High density fuel storage rack

    International Nuclear Information System (INIS)

    Zezza, L.J.

    1980-01-01

    High storage density for spent nuclear fuel assemblies in a pool achieved by positioning fuel storage cells of high thermal neutron absorption materials in an upright configuration in a rack. The rack holds the cells at required pitch. Each cell carries an internal fuel assembly support, and most cells are vertically movable in the rack so that they rest on the pool bottom. Pool water circulation through the cells and around the fuel assemblies is permitted by circulation openings at the top and bottom of the cells above and below the fuel assemblies

  13. Yield, utilization, storage and ultimate storage of depleted uranium

    International Nuclear Information System (INIS)

    Aumueller, L.; Hermann, J.

    1977-11-01

    More than 80% of the uranium leaving uranium enrichment plants is depleted to a residual content of about 0,25% U 235. Due to the present ineconomical further depletion to the technically possible residual content of 0,1% U 235, the so-called 'tails' are first of all stored. The quantity of stored depleted uranium in the FRG should be about 100.000 t by the year 2000. It represents a strategic reserve for future energy supply regardless of profitableness. The study analysis the conceivable possible uses for the tails quantity considered. These are, besides further depletion whose profitableness is considered, also the use as breeder material in breeder reactors and the use in the non-nuclear field. The main part of the study deals with the various storage possibilities of the depleted uranium in oxidic or fluoride form. A comparison of costs of alternative storage concepts showed a clear advantage for the storage of UF 6 in 48 inch containers already in use. The conceivable accidents in storing are analyzed and measures to reduce the consequences are discussed. Finally, the problems of ultimate storage for the remaining waste after further depletion or use are investigated and the costs arising here are also estimated. (RB) [de

  14. Storage and distribution/Linear programming for storage operations

    Energy Technology Data Exchange (ETDEWEB)

    Coleman, D

    1978-07-15

    The techniques of linear programing to solve storage problems as applied in a tank farm tie-in with refinery throughput operation include: (1) the time-phased model which works on storage and refinery operations input parameters, e.g., production, distribution, cracking, etc., and is capable of representing product stockpiling in slack periods to meet future peak demands, and investigating alternative strategies such as exchange deals and purchase and leasing of additional storage, and (2) the Monte Carlo simulation method, which inputs parameters, e.g., arrival of crude products at refinery, tankage size, likely demand for products, etc., as probability distributions rather than single values, and is capable of showing the average utilization of facilities, potential bottlenecks, investment required to achieve an increase in utilization, and to enable the user to predict total investment, cash flow, and profit emanating from the original financing decision. The increasing use of computer techniques to solve refinery and storage problems is attributed to potential savings resulting from more effective planning, reduced computer costs, ease of access and more usable software. Diagrams.

  15. Electricity storage - A challenge for energy transition

    International Nuclear Information System (INIS)

    Bart, Jean-Baptiste; Nekrasov, Andre; Pastor, Emmanuel; Benefice, Emmanuel; Brincourt, Thierry; Cagnac, Albannie; Brisse, Annabelle; Jeandel, Elodie; Lefebvre, Thierry; Penneau, Jean-Francois; Radvanyi, Etienne; Delille, Gautier; Hinchliffe, Timothee; Lancel, Gilles; Loevenbruck, Philippe; Soler, Robert; Stevens, Philippe; Torcheux, Laurent

    2017-01-01

    After a presentation of the energetic context and of its issues, this collective publication proposes presentations of various electricity storage technologies with a distinction between direct storage, thermal storage and hydrogen storage. As far as direct storage is concerned, the following options are described: pumped energy transfer stations or PETS, compressed air energy storage or CAES, flywheels, various types of electrochemical batteries (lead, alkaline, sodium, lithium), metal air batteries, redox flow batteries, and super-capacitors. Thermal storage comprises power-to-heat and heat-to-power technologies. Hydrogen can be stored under different forms (compressed gas, liquid), in saline underground cavities, or by using water electrolysis and fuel cells. The authors propose an overview of the different services provided by energy storage to the electricity system, and discuss the main perspectives and challenges for tomorrow's storage (electric mobility, integration of renewable energies, electrification of isolated areas, scenarios of development)

  16. Thermal energy storage devices, systems, and thermal energy storage device monitoring methods

    Science.gov (United States)

    Tugurlan, Maria; Tuffner, Francis K; Chassin, David P.

    2016-09-13

    Thermal energy storage devices, systems, and thermal energy storage device monitoring methods are described. According to one aspect, a thermal energy storage device includes a reservoir configured to hold a thermal energy storage medium, a temperature control system configured to adjust a temperature of the thermal energy storage medium, and a state observation system configured to provide information regarding an energy state of the thermal energy storage device at a plurality of different moments in time.

  17. STORAGE OF Handroanthus umbellatus SEEDS

    Directory of Open Access Journals (Sweden)

    Cibele Chalita Martins

    2014-09-01

    Full Text Available http://dx.doi.org/10.5902/1980509815725Seed storage under controlled environmental conditions represents one of the most important lines of research to be applied on short-lived forest species as Handroanthus. The present research aimed to identify the most suitable seed storage conditions and longevity behavior of Handroanthus umbellatus seeds subject to the following storage treatments: packaging permeable paper bags under a no-controlled laboratory temperature and humidity (control and multiwall semipermeable bag at temperatures of -18 ºC, 1 ºC and 25 ºC. Seeds were dried to 6.3% of water content. Stored seeds were evaluated every three months until 24 months for water content, germination percentage and vigor utilizing first counting test. Seeds of T. umbellata are orthodox, with low longevity under natural conditions, once they remain viable for less than 5 months. The best conditions of seed preservation of these species were obtained by storage at -18° C in multiwall bags. Under these conditions physiological seed quality remains unchanged for a 24-month period.

  18. Storage container for radioactive wastes

    International Nuclear Information System (INIS)

    Catalayoud, L.; Gerard, M.

    1990-01-01

    Tightness, shock resistance and corrosion resistance of containers for storage of radioactive wastes it obtained by complete fabrication with concrete reinforced with metal fibers. This material is used for molding the cask, the cover and the joint connecting both parts. Dovetail grooves are provided on the cask and the cover for the closure [fr

  19. Ultimate storage of reactor wastes

    International Nuclear Information System (INIS)

    1987-01-01

    The report describes the store, SFR 1, designed for final disposal of high and intermediate radioactive wastes from the Swedish nuclear power stations and from the Central Interior Storage Facility for Spent Nuclear Fuel and from other industry, research institutes and medical service. The store is located in rock more than 60 meters below bottom of the Baltic Sea. (O.S.)

  20. Enhancing hydrogen spillover and storage

    Science.gov (United States)

    Yang, Ralph T [Ann Arbor, MI; Li, Yingwel [Ann Arbor, MI; Lachawiec, Jr., Anthony J.

    2011-05-31

    Methods for enhancing hydrogen spillover and storage are disclosed. One embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the hydrogen receptor to ultrasonification as doping occurs. Another embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the doped hydrogen receptor to a plasma treatment.

  1. Hydrogen storage in planetary physics

    International Nuclear Information System (INIS)

    Baltensperger, W.

    1984-01-01

    Hydrogen in contact with most substances undergoes first order phase transitions with increasing pressure during which hydrides are formed. This applies to the core of hydrogen rich planets. It is speculated that a partial hydrogen storage in the early history of the earth could have lead to the formation of continents. Primordial carbon hydrides are synthesized during this process. (Author) [pt

  2. Krypton-85 removal and storage

    International Nuclear Information System (INIS)

    Gutierrez Fernandez, J.

    1978-01-01

    A literature survey was made in order to predict the atmospheric Kr-85 concentration in the future and it s effect on the population. As a consequence the need for its treatment and removal as a previous step to gaseous waste disposal is justified. A literature review of possible methods of Kr-85 removal and storage is also included. (Author) 43 refs

  3. Final storage of radioactive waste

    International Nuclear Information System (INIS)

    Albrecht, E.; Kolditz, H.; Thielemann, K.; Duerr, K.; Klarr, K.; Kuehn, K.; Staupendahl, G.; Uerpmann, E.P.; Bechthold, W.; Diefenbacher, W.

    1974-12-01

    The present report - presented by the Gesellschaft fuer Strahlen- und Umweltforschung mbH, Muenchen in cooperation with the Gesellschaft fuer Kernforschung mbH, Karlsruhe - gives a survey of the 1973 work in the field of final storage of radioactive wastes. The mining and constructional work carried out aboveground and underground in the saline of Asse near Remlingen with a view to repair, maintenance and expansion for future tasks is discussed. Storage of slightly active wastes on the 750 m floor and the tentative storage of medium-activity wastes on the 490 m floor were continued in the time under review. In September, the multiple transport container S 7 V, developped in the GfK for transports of 7 200 l iron-hooped drums containing medium activity wastes, were employed in Asse for the first time. With two transports a week between Karlsruhe Nuclear Research Centre and the Asse mine, 14 drums were stored per week with a total of 233 drums at the end of the year. The report also gives information on the present state of research in the fields of mountain engineering geology and hydrology, and its results. In addition, new storage methods are mentioned which are still in the planning stage. (orig./AK) [de

  4. Studies on heat storage, 9

    International Nuclear Information System (INIS)

    Taoda, Hiroshi; Hayakawa, Kiyoshi; Kawase, Kaoru; Kosaka, Mineo

    1985-01-01

    To estimate the extent of thermal oxidative aging of the crosslinked and surface coated polyethylene pellets used as a latent heat thermal storage material, their deterioration was investigated by applying the heating-cooling cycle which simulated the daily insolation over 6 months (8-hour holding at 150 deg C as the highest temperature in a day followed by 5-hour holding at 30 deg C as the lowest one). The degradation, e.g., the lowering of heat of crystallization and in crystallization temperature, is thought to be caused by both the decrease in molecular weight of polyethylene due to thermal oxidative decomposition and the crosslinking between produced radicals. With the increase in the degree of crosslinking and branching in a molecular chain which has low bond dissociation energy, thermal deterioration of polyethylene proceeds more rapidly. Polyethylene pellets can endure long periods of practical heat cycling as a thermal storage material when they are treated with radical scavengers under proper control of their crosslinking degrees. The repeating heat storage experiments by using the developed polyethylene thermal storage material were performed and very promising results were obtained. (author)

  5. Inductive line energy storage generator

    Energy Technology Data Exchange (ETDEWEB)

    Choi, P [Ecole Polytechnique, Palaiseau (France). Laboratoire de Physique des Milieux Ionises

    1997-12-31

    The inductive energy storage (IES) generator has long been considered to be the most efficient system for energy usage in large pulsed power system at the MA level. A number of parameters govern the efficiency of energy transfer between the storage capacitors and the load, and the level of current deliverable to the load. For high power system, the energy storage capacitors are arranged as a Marx generator. The primary constraints are the inductances in the various parts of the circuit, in particular, the upstream inductance between the Marx and the POS, and the downstream inductance between the POS and the load. This paper deals with the effect of replacing part of the upstream inductance with a transmission line and introduces the new concept of an inductive line for energy storage (ILES). Extensive parametric scans were carried out on circuit simulations to investigate the effect of this upstream transmission line. A model was developed to explain the operation of the ILES design based on the data obtained. Comparison with an existing IES generator shows that the ILES design offers a significant improvement in the maximum current and hence energy delivered to an inductive load. (author). 5 figs., 1 ref.

  6. Recycling of batteries after storage

    International Nuclear Information System (INIS)

    Posthumus, W.

    1997-06-01

    An overview is given of the types and composition of batteries and their waste processing techniques that are operational or under development. Attention is paid to the demands of the waste processing techniques with respect to the quality of the collected batteries. Finally the storage of batteries is discussed. 18 refs

  7. Storage and separation of gases

    International Nuclear Information System (INIS)

    Biloe, S.; Cagnon, B.; Goetz, V.; Guillot, A.; Mauran, S.; Mazet, N.; Menard, D.; Py, X.

    2005-01-01

    Various processes such as gas separation, gas storage (H 2 or CH 4 ) are known to be inhibited by intrinsic antagonistic material properties (texture, thermal conductivity, permeability). In the following document are gathered the last progress in adsorbent material elaboration and process engineering. (authors)

  8. Chilled storage of foods - principles

    Science.gov (United States)

    Chilled storage is the most common method for preserving perishable foods. The consumers’ increasing demand for convenient, minimally processed foods has caused food manufacturers to increase production of refrigerated foods worldwide. This book chapter reviews the development of using low tempera...

  9. Heat pipe heat storage performance

    Energy Technology Data Exchange (ETDEWEB)

    Caruso, A; Pasquetti, R [Univ. de Provence, Marseille (FR). Inst. Universitaire des Systemes; Grakovich, L P; Vasiliev, L L [A.V. Luikov Heat and Mass Transfer Inst. of the BSSR, Academy of Sciences, Minsk (BY)

    1989-01-01

    Heat storage offers essential thermal energy saving for heating. A ground heat store equipped with heat pipes connecting it with a heat source and to the user is considered in this paper. It has been shown that such a heat exchanging system along with a batch energy source meets, to a considerable extent, house heating requirements. (author).

  10. Underground storage of carbon dioxide

    Energy Technology Data Exchange (ETDEWEB)

    Tanaka, Shoichi [Univ. of Tokyo, Hongo, Bunkyo-ku (Japan)

    1993-12-31

    Desk studies on underground storage of CO{sub 2} were carried out from 1990 to 1991 fiscal years by two organizations under contract with New Energy and Indestrial Technology Development Organization (NEDO). One group put emphasis on application of CO{sub 2} EOR (enhanced oil recovery), and the other covered various aspects of underground storage system. CO{sub 2} EOR is a popular EOR method in U.S. and some oil countries. At present, CO{sub 2} is supplied from natural CO{sub 2} reservoirs. Possible use of CO{sub 2} derived from fixed sources of industries is a main target of the study in order to increase oil recovery and storage CO{sub 2} under ground. The feasibility study of the total system estimates capacity of storage of CO{sub 2} as around 60 Gton CO{sub 2}, if worldwide application are realized. There exist huge volumes of underground aquifers which are not utilized usually because of high salinity. The deep aquifers can contain large amount of CO{sub 2} in form of compressed state, liquefied state or solution to aquifer. A preliminary technical and economical survey on the system suggests favorable results of 320 Gton CO{sub 2} potential. Technical problems are discussed through these studies, and economical aspects are also evaluated.

  11. Reracking to increase spent fuel storage capacity

    International Nuclear Information System (INIS)

    1980-05-01

    Many utilities have already increased their spent fuel pool storage capacity by replacing aluminum racks having storage densities as low as 0.2 MTU/ft 2 with stainless steel racks which can more than double storage densities. Use of boron-stainless steel racks or thin stainless steel cans containing reassembled fuel rods allows even higher fuel storage densities (up to approximately 1.25 MTU/ft 2 ). This report evaluates the economics of smaller storage gains that occur if pools, already converted to high density storage, are further reracked

  12. Some wind-energy storage options

    Energy Technology Data Exchange (ETDEWEB)

    Eldridge, F R; Ljungstroem, O [ed.

    1976-01-01

    Systems capable of storing energy generated from the wind can be categorized in terms of electrochemical energy storage systems, thermal energy storage systems, kinetic energy systems, and potential energy systems. Recent surveys of energy storage systems have evaluated some of these available storage technologies in terms of the minimum economic sizes for utility applications, estimated capital costs of these units, expected life, dispersed storage capabilities, and estimated turn-around efficiencies of the units. These are summarized for various types of energy storage options.

  13. Solar applications analysis for energy storage

    Science.gov (United States)

    Blanchard, T.

    1980-01-01

    The role of energy storage as it relates to solar energy systems is considered. Storage technologies to support solar energy applications, the status of storage technologies, requirements and specifications for storage technologies, and the adequacy of the current storage research and development program to meet these requirements are among the factors discussed. Emphasis is placed on identification of where the greatest potential exists for energy storage in support of those solar energy systems which could have a significant impact on the U.S. energy mix.

  14. Fast storage of nuclear quadrupole resonance signals

    International Nuclear Information System (INIS)

    Anferov, V.P.; Molchanov, S.V.; Levchun, O.D.

    1988-01-01

    Fast multichannel storage of nuclear quadrupole resonance (NQR) signals is described. Analog-to-digital converter, arithmetic-logical unit, internal memory device (IMD) selection-storage unit and control unit are the storage main units. The storage is based on 43 microcircuits and provides for record and storage of NQR-signals at the contributed operation with Mera-60 microcomputer. Time of analog-to-digital conversion and signal recording into IMD is ∼ 1 mks. Capacity of analog-to-digital converter constitutes 8-10 bits. IMD capacity is 4 K bitsx16. Number of storage channels is 4

  15. Multifunctional composites for energy storage

    Science.gov (United States)

    Shuvo, Mohammad Arif I.; Karim, Hasanul; Rajib, Md; Delfin, Diego; Lin, Yirong

    2014-03-01

    Electrochemical super-capacitors have become one of the most important topics in both academia and industry as novel energy storage devices because of their high power density, long life cycles, and high charge/discharge efficiency. Recently, there has been an increasing interest in the development of multifunctional structural energy storage devices such as structural super-capacitors for applications in aerospace, automobiles and portable electronics. These multifunctional structural super-capacitors provide lighter structures combining energy storage and load bearing functionalities. Due to their superior materials properties, carbon fiber composites have been widely used in structural applications for aerospace and automotive industries. Besides, carbon fiber has good electrical conductivity which will provide lower equivalent series resistance; therefore, it can be an excellent candidate for structural energy storage applications. Hence, this paper is focused on performing a pilot study for using nanowire/carbon fiber hybrids as building materials for structural energy storage materials; aiming at enhancing the charge/discharge rate and energy density. This hybrid material combines the high specific surface area of carbon fiber and pseudo-capacitive effect of metal oxide nanowires which were grown hydrothermally in an aligned fashion on carbon fibers. The aligned nanowire array could provide a higher specific surface area that leads to high electrode-electrolyte contact area and fast ion diffusion rates. Scanning Electron Microscopy (SEM) and XRay Diffraction (XRD) measurements were used for the initial characterization of this nanowire/carbon fiber hybrid material system. Electrochemical testing has been performed using a potentio-galvanostat. The results show that gold sputtered nanowire hybrid carbon fiber provides 65.9% better performance than bare carbon fiber cloth as super-capacitor.

  16. Criticality impacts on LWR fuel storage efficiency

    International Nuclear Information System (INIS)

    Napolitano, D.

    1992-01-01

    This presentation discusses the criticality impacts throughout storage of fuel onsite including new fuel storage, spent fuel storage, consolidation, and dry storage. The general principles for criticality safety are also be discussed. There is first an introduction which explains today's situation for criticality safety concerns. This is followed by a discussion of criticality safety Regulatory Guides, safety limits and fundamental principles. Design objectives for criticality safety in the 1990's include higher burnups, longer cycles, and higher enrichments which impact the criticality safety design. Criticality safety for new fuel storage, spent fuel storage, fuel consolidation, and dry storage are followed by conclusions. Today's situation is one in which the US does not reprocess, and does not have an operating MRS facility or repository. High density fuel storage rack designs of the 1980s, are filling up. Dry cask storage systems for spent fuel storage are being utilized. Enrichments continue to increase PWR fuel assemblies with enrichments of 4.5 to 5.0 weight percent U-235 and BWR fuel assemblies with enrichments of 3.25 to 3.5 weight percent U-235 are common. Criticality concerns affect the capacity and the economics of light water reactor (LWR) fuel storage arrays by dictating the spacing of fuel assemblies in a storage system, or the use of poisons or exotic materials in the storage system design

  17. Energy storage: a review of recent literature

    International Nuclear Information System (INIS)

    Tatone, O.S.

    1981-12-01

    Recent literature on the technological and economic status of reversible energy storage has been reviewed. A broad range of research and development activities have been pursued between 1975 and the present. Most of this work has concentrated on improving technical and economic performance of previously known storage technologies. Hydraulic pumped storage with both reservoirs above ground and compressed air storage (1 plant) are the only methods that have been adopted by electric utilities. The need for electrical energy storage in Canada has not been acute because of the large proportion of hydraulic generation which incorporates some storge and, in most cases, can readily be used for load-following. Residential heat storage in ceramic room heaters has been used in Europe for several years. For Canadian climatic and market conditions larger, central heating units would be required. Residential heat storage depends upon utilities offering time-of-use rates and none in Canada do so at present. Most seasonal storage concepts depend upon storage of low-grade heat for district heating. The cost of energy storage is highly dependent upon annual energy throughput and hence favours smaller capacity systems operating on frequent charge/discharge cycles over long-term storage. Capital costs of energy storage methods from the literature, expressed in constant dollars, are compared graphically and tentative investment costs are presented for several storage methods

  18. Synthesis long life storage studies surface storage of vitrified wastes

    International Nuclear Information System (INIS)

    Beziat, A.; Breton, E.; Ranc, G.; Gaillard, J.P.; Lagrave, H.; Hollender, F.; Jourdain, F.; Piault, E.; Garnier, J.; Lamare, V.; Duret, B.; Helie, M.; Ferry, C.; Mijuin, D.; Gagnier, E.

    2004-01-01

    This document is realized in the framework of the axis 3 of the law of 1991 on the radioactive wastes management. It justifies the choices concerning long time surface storage installation of vitrified wastes, called high activity wastes. The long time of the installation would reach 300 years at the maximum. These wastes represent 1 % at the maximum, of radioactive wastes in France but 95 % of the whole radioactivity. Three main objectives were followed: provide a permanent containment of radionuclides; give the possibility of wastes containers retrieval at all the time; minimize the maintenance and the control. The results allow to conclude that the long time surface storage of high activity wastes is feasible. (A.L.B.)

  19. The subtle attractions of dry vault storage

    International Nuclear Information System (INIS)

    Ealing, C.J.

    1993-01-01

    Utilities in the United States of America, Scotland and Hungary have all adopted dry vault technology in their plans for spent fuel storage. This article looks at what makes dry storage an attractive option. (author)

  20. Natural Gas Storage Facilities, US, 2010, Platts

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Platts Natural Gas Storage Facilities geospatial data layer contains points that represent locations of facilities used for natural gas storage in the United...

  1. Latent Heat Storage Through Phase Change Materials

    Indian Academy of Sciences (India)

    IAS Admin

    reducing storage volume for different materials. The examples are numerous: ... Latent heat is an attractive way to store solar heat as it provides high energy storage density, .... Maintenance of the PCM treated fabric is easy. The melted PCM.

  2. Improving wind power quality with energy storage

    DEFF Research Database (Denmark)

    Rasmussen, Claus Nygaard

    2009-01-01

    The results of simulation of the influence of energy storage on wind power quality are presented. Simulations are done using a mathematical model of energy storage. Results show the relation between storage power and energy, and the obtained increase in minimum available power from the combination...... of wind and storage. The introduction of storage enables smoothening of wind power on a timescale proportional to the storage energy. Storage does not provide availability of wind power at all times, but allows for a certain fraction of average power in a given timeframe to be available with high...... probability. The amount of storage capacity necessary for significant wind power quality improvement in a given period is found to be 20 to 40% of the energy produced in that period. The necessary power is found to be 80 to 100% of the average power of the period....

  3. LEP superconducting cavities go into storage

    CERN Multimedia

    Patrice Loïez

    2001-01-01

    Superconducting radio-frequency cavities from the LEP-2 phase (1996-2000) are put into storage in the tunnel that once housed the Intersecting Storage Rings (ISR), the world’s first proton collider, located at CERN.

  4. What good is the muon storage option

    International Nuclear Information System (INIS)

    Wilson, R.

    1977-01-01

    A brief discussion is given of the value of providing for muon storage at ISABELLE. It is concluded that ISABELLE would not make the ideal storage ring and that a better ring has been suggested for Fermilab

  5. 21 CFR 1271.260 - Storage.

    Science.gov (United States)

    2010-04-01

    ... TISSUE-BASED PRODUCTS Current Good Tissue Practice § 1271.260 Storage. (a) Control of storage areas. You... distribution. (b) Temperature. You must store HCT/Ps at an appropriate temperature. (c) Expiration date. Where...

  6. Interim dry fuel storage for magnox reactors

    Energy Technology Data Exchange (ETDEWEB)

    Bradley, N [National Nuclear Corporation, Risley, Warrington (United Kingdom); Ealing, C [GEC Energy Systems Ltd, Whetstone, Leicester (United Kingdom)

    1985-07-01

    In the UK the practice of short term buffer storage in water ponds prior to chemical reprocessing had already been established on the early gas cooled reactors in Calder Hall. Thus the choice of water pond buffer storage for MGR power plants logically followed the national policy decision to reprocess. The majority of the buffer storage period would take place at the reprocessing plant with only a nominal of 100 days targeted at the station. Since Magnox clad fuel is not suitable for long term pond storage, alternative methods of storage on future stations was considered desirable. In addition to safeguards considerations the economic aspects of the fuel cycle has influenced the conclusion that today the purchase of a MGR power plant with dry spent fuel storage and without commitment to reprocess would be a rational decision for a country initiating a nuclear programme. Dry storage requirements are discussed and two designs of dry storage facilities presented together with a fuel preparation facility.

  7. Interim dry fuel storage for magnox reactors

    International Nuclear Information System (INIS)

    Bradley, N.; Ealing, C.

    1985-01-01

    In the UK the practice of short term buffer storage in water ponds prior to chemical reprocessing had already been established on the early gas cooled reactors in Calder Hall. Thus the choice of water pond buffer storage for MGR power plants logically followed the national policy decision to reprocess. The majority of the buffer storage period would take place at the reprocessing plant with only a nominal of 100 days targeted at the station. Since Magnox clad fuel is not suitable for long term pond storage, alternative methods of storage on future stations was considered desirable. In addition to safeguards considerations the economic aspects of the fuel cycle has influenced the conclusion that today the purchase of a MGR power plant with dry spent fuel storage and without commitment to reprocess would be a rational decision for a country initiating a nuclear programme. Dry storage requirements are discussed and two designs of dry storage facilities presented together with a fuel preparation facility

  8. Ocean carbon uptake and storage

    International Nuclear Information System (INIS)

    Tilbrook, Bronte

    2007-01-01

    Full text: The ocean contains about 95% of the carbon in the atmosphere, ocean and land biosphere system, and is of fundamental importance in regulating atmospheric carbon dioxide concentrations. In the 1990s an international research effort involving Australia was established to determine the uptake and storage of anthropogenic C02 for all major ocean basins. The research showed that about 118 of the 244 + 20 billion tons of the anthropogenic carbon emitted through fossil fuel burning and cement production has been stored in the ocean since preindustrial times, thus helping reduce the rate of increase in atmospheric C02. The research also showed the terrestrial biosphere has been a small net source of C02 (39 ± 28 billion tons carbon) to the atmosphere over the same period. About 60% of the total ocean inventory of the anthropogenic C02 was found in the Southern Hemisphere, with most in the 30 0 S to 50 0 S latitude band. This mid-latitude band is where surface waters are subducted as Mode and Intermediate waters, which is a major pathway controlling ocean C02 uptake. High storage (23% of the total) also occurs in the North Atlantic, associated with deep water formation in that basin. The ocean uptake and storage is expected to increase in the coming decades as atmospheric C02 concentrations rise. However, a number of feedback mechanisms associated with surface warming, changes in circulation, and biological effects are likely to impact on the uptake capacity. The accumulation or storage-of the C02 in the ocean is also the major driver of ocean acidification with potential to disrupt marine ecosystems. This talk will describe the current understanding of the ocean C02 uptake and storage and a new international research strategy to detect how the ocean uptake and storage will evolve on interannual through decadal scales. Understanding the ocean response to increasing atmospheric C02 will be a key element in managing future C02 increases and establishing

  9. PUREX Storage Tunnels dangerous waste permit application

    International Nuclear Information System (INIS)

    1991-12-01

    This report is part of a dangerous waste permit application for the storage of wastes from the Purex process at Hanford. Appendices are presented on the following: construction drawings; HSW-5638, specifications for disposal facility for failed equipment, Project CA-1513-A; HWS-8262, specification for Purex equipment disposal, Project CGC 964; storage tunnel checklist; classification of residual tank heels in Purex storage tunnels; emergency plan for Purex facility; training course descriptions; and the Purex storage tunnels engineering study

  10. A muon storage ring for neutrino beams

    International Nuclear Information System (INIS)

    Lee, W.; Neuffer, D.

    1988-01-01

    A muon storage ring can provide electron and muon neutrino beams of precisely knowable flux. Constraints on muon collection and storage-ring design are discussed. Sample muon storage rings are presented and muon and neutrino intensities are estimated. Experimental use of the ν-beams, detector properties, and possible variations are described. Future directions for conceptual designs are outlined. 11 refs., 4 figs., 3 tabs

  11. Which way for Europe's gas storage market?

    International Nuclear Information System (INIS)

    Hureau, Geoffroy; Cornot-Gandolphe, Sylvie

    2013-06-01

    This slide show presents in a first part the 2013 Situation of the European gas storage market (Capacity, Gas Demand vs. Gas Storage, Spreads and Volatility, LNG effect, Storage Price, Utilization of Storage Facilities, Security of supply). The future of European Gas Demand and Supply are presented in a second part (Demand and Supply Factors, Market Liberalization, Estimates of European UGS Needs by 2030, Planned Working Gas Capacities in Europe)

  12. Superconducting magnetic energy storage, possibilities and limitations

    International Nuclear Information System (INIS)

    Bace, M.; Knapp, V.

    1981-01-01

    Energy storage is of great importance for the exploitation of new energy sources as well as for the better utilisation of conventional ones. Several proposals in recent years have suggested that superconducting magnets could be used as energy storage in large electricity networks. It is a purpose of this note to point out that the requirements which have to be met by energy storage in a large electricity network place serious limitation on the possible use of superconducting energy storage. (author)

  13. Ensuring safety in monitored retrievable storage

    International Nuclear Information System (INIS)

    Guenther, R.J.; Gilbert, E.R.; Slate, S.C.; Devine, J.R.; Kreid, D.K.; Partain, W.L.

    1984-01-01

    The behaviour of spent fuel in dry storage will be one of the principal considerations in the design of monitored retrievable storage (MRS) facilities. Reliable predictive tools for extrapolating fuel performance during long storage periods can provide guidance and criteria for the design and operation of MRS facilities. This article reviews the results of recent efforts to predict the degradation of spent fuel in MRS and summarises the expected performance of other waste forms during storage. (author)

  14. Electrochemical Energy Storage Technical Team Roadmap

    Energy Technology Data Exchange (ETDEWEB)

    None

    2013-06-01

    This U.S. DRIVE electrochemical energy storage roadmap describes ongoing and planned efforts to develop electrochemical energy storage technologies for plug-in electric vehicles (PEVs). The Energy Storage activity comprises a number of research areas (including advanced materials research, cell level research, battery development, and enabling R&D which includes analysis, testing and other activities) for advanced energy storage technologies (batteries and ultra-capacitors).

  15. Online mass storage system detailed requirements document

    Science.gov (United States)

    1976-01-01

    The requirements for an online high density magnetic tape data storage system that can be implemented in a multipurpose, multihost environment is set forth. The objective of the mass storage system is to provide a facility for the compact storage of large quantities of data and to make this data accessible to computer systems with minimum operator handling. The results of a market survey and analysis of candidate vendor who presently market high density tape data storage systems are included.

  16. Energy Storage Publications | Transportation Research | NREL

    Science.gov (United States)

    , California. 23 pp.; NREL Report No. PR-5400-60290. Optimal Sizing of Energy Storage and Photovoltaic Power (11) 2017 pp. 1095-1118. Life Prediction Model for Grid-Connected Li-ion Battery Energy Storage System Prediction Model for Grid-Connected Li-ion Battery Energy Storage System - Preprint Paper Source: Smith

  17. Recordable storage medium with protected data area

    NARCIS (Netherlands)

    2005-01-01

    The invention relates to a method of storing data on a rewritable data storage medium, to a corresponding storage medium, to a corresponding recording apparatus and to a corresponding playback apparatus. Copy-protective measures require that on rewritable storage media some data must be stored which

  18. Energy storage device with large charge separation

    Science.gov (United States)

    Holme, Timothy P.; Prinz, Friedrich B.; Iancu, Andrei T.

    2018-04-03

    High density energy storage in semiconductor devices is provided. There are two main aspects of the present approach. The first aspect is to provide high density energy storage in semiconductor devices based on formation of a plasma in the semiconductor. The second aspect is to provide high density energy storage based on charge separation in a p-n junction.

  19. Inside Dropbox: Understanding Personal Cloud Storage Services

    NARCIS (Netherlands)

    Drago, Idilio; Mellia, Marco; Munafò, Maurizio M.; Sperotto, Anna; Sadre, R.; Pras, Aiko

    2012-01-01

    Personal cloud storage services are gaining popularity. With a rush of providers to enter the market and an increasing offer of cheap storage space, it is to be expected that cloud storage will soon generate a high amount of Internet traffic. Very little is known about the architecture and the

  20. Vacuum storage of yellow-poplar pollen

    Science.gov (United States)

    James R. Wilcox

    1966-01-01

    Vacuum-drying, followed by storage in vacuo or in an inert gas, is effective for storing pollen of many species. It permits storage at room environments without rigid controls of either temperature or humidity, an advantage that becomes paramount during long-distance transfers of pollen when critical storage conditions are impossible to maintain. In...

  1. 30 CFR 57.6800 - Storage facilities.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Storage facilities. 57.6800 Section 57.6800...-Surface and Underground § 57.6800 Storage facilities. When repair work which could produce a spark or flame is to be performed on a storage facility— (a) The explosive material shall be moved to another...

  2. 30 CFR 56.4430 - Storage facilities.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Storage facilities. 56.4430 Section 56.4430 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE... Control Flammable and Combustible Liquids and Gases § 56.4430 Storage facilities. (a) Storage tanks for...

  3. 30 CFR 56.6800 - Storage facilities.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Storage facilities. 56.6800 Section 56.6800... § 56.6800 Storage facilities. When repair work which could produce a spark or flame is to be performed on a storage facility— (a) The explosive material shall be moved to another facility, or moved at...

  4. Modular dry storage of spent fuel

    International Nuclear Information System (INIS)

    Baxter, J.W.

    1982-01-01

    Long term uncertainties in US spent fuel reprocessing and storage policies and programs are forcing the electric utilities to consider means of storing spent fuel at the reactor site in increasing quantitities and for protracted periods. Utilities have taken initial steps in increasing storage capacity. Existing wet storage pools have in many cases been reracked to optimize their capacity for storing spent fuel assemblies

  5. Rock cavern storage of spent fuel

    Energy Technology Data Exchange (ETDEWEB)

    Cho, Won Jin; Kim, Kyung Soo [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of); Kwon, Sang Ki [Inha University, Incheon (Korea, Republic of)

    2015-12-15

    The rock cavern storage for spent fuel has been assessed to apply in Korea with reviewing the state of the art of the technologies for surface storage and rock cavern storage of spent fuel. The technical feasibility and economic aspects of the rock cavern storage of spent fuel were also analyzed. A considerable area of flat land isolated from the exterior are needed to meet the requirement for the site of the surface storage facilities. It may, however, not be easy to secure such areas in the mountainous region of Korea. Instead, the spent fuel storage facilities constructed in the rock cavern moderate their demands for the suitable site. As a result, the rock cavern storage is a promising alternative for the storage of spent fuel in the aspect of natural and social environments. The rock cavern storage of spent fuel has several advantages compared with the surface storage, and there is no significant difference on the viewpoint of economy between the two alternatives. In addition, no great technical difficulties are present to apply the rock cavern storage technologies to the storage of domestic spent fuel.

  6. Concrete thermal energy storage for steam generation

    DEFF Research Database (Denmark)

    Singh, Shobhana; Sørensen, Kim

    2017-01-01

    Establishing enhancement methods to develop cost-effective thermal energy storage technology requires a detailed analysis. In this paper, a numerical investigation of the concrete based thermal energy storage system is carried out. The storage system consists of a heat transfer fluid flowing inside...

  7. User manual for storage simulation construction set

    International Nuclear Information System (INIS)

    Sehgal, Anil; Volz, Richard A.

    1999-01-01

    The Storage Simulation Set (SSCS) is a tool for composing storage system models using Telegrip. It is an application written in C++ and motif. With this system, the models of a storage system can be composed rapidly and accurately. The aspects of the SSCS are described within this report

  8. Liquid crystals for holographic optical data storage

    DEFF Research Database (Denmark)

    Matharu, Avtar; Jeeva, S.; Ramanujam, P.S.

    2007-01-01

    to the information storage demands of the 21st century is detailed. Holography is a small subset of the much larger field of optical data storage and similarly, the diversity of materials used for optical data storage is enormous. The theory of polarisation holography which produces holograms of constant intensity...

  9. Unit 037 - Fundamentals of Data Storage

    OpenAIRE

    037, CC in GIScience; Jacobson, Carol R.

    2000-01-01

    This unit introduces the concepts and terms needed to understand storage of GIS data in a computer system, including the weaknesses of a discrete data model for representing the real world; an overview of data storage types and terminology; and a description of data storage issues.

  10. Erasure Coded Storage on a Changing Network

    DEFF Research Database (Denmark)

    Sipos, Marton A.; Venkat, Narayan; Oran, David

    2016-01-01

    As faster storage devices become commercially viable alternatives to disk drives, the network is increasingly becoming the bottleneck in achieving good performance in distributed storage systems. This is especially true for erasure coded storage, where the reconstruction of lost data can signific...

  11. On Network Coded Distributed Storage

    DEFF Research Database (Denmark)

    Cabrera Guerrero, Juan Alberto; Roetter, Daniel Enrique Lucani; Fitzek, Frank Hanns Paul

    2016-01-01

    systems typically rely on expensive infrastructure with centralized control to store, repair and access the data. This approach introduces a large delay for accessing and storing the data driven in part by a high RTT between users and the cloud. These characteristics are at odds with the massive increase......This paper focuses on distributed fog storage solutions, where a number of unreliable devices organize themselves in Peer-to-Peer (P2P) networks with the purpose to store reliably their data and that of other devices and/or local users and provide lower delay and higher throughput. Cloud storage...... of devices and generated data in coming years as well as the requirements of low latency in many applications. We focus on characterizing optimal solutions for maintaining data availability when nodes in the fog continuously leave the network. In contrast with state-of-the-art data repair formulations, which...

  12. Compressed gas fuel storage system

    Science.gov (United States)

    Wozniak, John J.; Tiller, Dale B.; Wienhold, Paul D.; Hildebrand, Richard J.

    2001-01-01

    A compressed gas vehicle fuel storage system comprised of a plurality of compressed gas pressure cells supported by shock-absorbing foam positioned within a shape-conforming container. The container is dimensioned relative to the compressed gas pressure cells whereby a radial air gap surrounds each compressed gas pressure cell. The radial air gap allows pressure-induced expansion of the pressure cells without resulting in the application of pressure to adjacent pressure cells or physical pressure to the container. The pressure cells are interconnected by a gas control assembly including a thermally activated pressure relief device, a manual safety shut-off valve, and means for connecting the fuel storage system to a vehicle power source and a refueling adapter. The gas control assembly is enclosed by a protective cover attached to the container. The system is attached to the vehicle with straps to enable the chassis to deform as intended in a high-speed collision.

  13. Soft material for optical storage

    International Nuclear Information System (INIS)

    Lucchetti, L.; Simoni, F.

    2000-01-01

    The aim of transforming electronic networking into optical networking is producing a major effort in studying all optical processing and as a consequence in investigating the nonlinear optical properties of materials for this purpose. In this research area soft materials like polymers and liquid crystals are more and more attractive because they are cheap and they are more easily integrated in microcircuits hardware with respect to the well-known highly nonlinear crystals. Since optical processing spans a too wide field to be treated in one single paper, the authors will focus on one specific subject within this field and give a review of the most recent advances in studying the soft-materials properties interesting for the storage of optical information. The efforts in research of new materials and techniques for optical storage are motivated by the need to store and retrieve large amounts of data with short access time and high data rate at a competitive cost

  14. Aube storage centres - 2007 review

    International Nuclear Information System (INIS)

    2008-10-01

    The National Radioactive Waste Management Agency (Andra), was established by the December 1991 Waste Act as a public body in charge of the long-term management of all radioactive waste, under the supervision of the Ministry of Ecology, Energy, Sustainable Development and the Sea (formerly the Ministry of Industry and the Ministry of Environment), and the Ministry of Research. The Andra operates two storage centers in the Aube region (France): the center for short-lived low- and intermediate-level wastes, and the center for very-low-level radioactive wastes. This report presents a review of the activities of both centers for 2007: deliveries, storage and processing, maintenance, incidents, personnel security, installations and environmental monitoring, effluents, budget and revenues, personnel, taxes, public information and actions of communication

  15. Technological alternatives for plutonium storage

    International Nuclear Information System (INIS)

    1978-12-01

    This paper discusses the problems of large long term storage since stores at fabrication plants may depend on the form of plutonium ultimately chosen for transport. The paper's conclusion includes: MOX can be regarded as more proliferation resistant than PUO 2 but no experience of long term storage is available, therefore further R and D is required; co-location of the store with reprocessing plants (and fuel fabrication plant) would appear to have advantages in non-proliferation, safeguards implementation, environmental protection and economic aspects; there are strong non-proliferation and security arguments for not moving plutonium away from the site where it was separated until there is an identifiable and scheduled end use. The design of the store, the form in which plutonium should be stored, particularly as MOX, and the costs and further R and D required are considered. The possible location of stores is also discussed and institutional questions briefly considered

  16. High density fuel storage racks

    International Nuclear Information System (INIS)

    Groves, M.D.

    1978-01-01

    An apparatus is described for the safe and compact storage of nuclear fuel assemblies in an array of discrete open-ended neutron absorbing shields for which the theoretical minimum safe separation distance and cell pitch are known. Open-ended stainless steel end fittings are welded to each end of each shield and the end fittings are welded to each other in side-by-side relation, thereby reducing the cell pitch tolerance due to fabrication uncertainties. In addition, a multiplicity of ridges on the sides of each shield having a height equal to one half the theoretical minimum safe separation distance further reduce shield bowing tolerances. The net tolerance reduction permits a significant increase in the number of fuel assemblies that can be safely contained in a storage area of fixed size

  17. Fourth-generation storage rings

    International Nuclear Information System (INIS)

    Galayda, J. N.

    1999-01-01

    It seems clear that a linac-driven free-electron laser is the accepted prototype of a fourth-generation facility. This raises two questions: can a storage ring-based light source join the fourth generation? Has the storage ring evolved to its highest level of performance as a synchrotrons light source? The answer to the second question is clearly no. The author thinks the answer to the first question is unimportant. While the concept of generations has been useful in motivating thought and effort towards new light source concepts, the variety of light sources and their performance characteristics can no longer be usefully summed up by assignment of a ''generation'' number

  18. Hydrogen storage in complex hydrides

    International Nuclear Information System (INIS)

    Lupu, D.; Biris, A. R.; Misan, I.

    2005-01-01

    Full text: Hydrogen storage is a key enabling technology for the advancement of hydrogen and fuel cell power technologies in mobile and stationary applications. A relevant role of the fuel cell powered vehicles on the market of the transportation systems will be achieved only if the research and development of on-board vehicular hydrogen storage are able to allow a driving range of at least 500 km. The on-board hydrogen storage systems are more challenging due to the space, weight and cost limitations. This range of autonomy between refueling requires materials able to store at least 6.5% weight hydrogen, available at moderate pressures, at the working temperature of the fuel cells and with acceptable cycling stability. The intensive research on the hydrogen storage in alloys and intermetallic of the LaNi 5 , FeTi or Laves phase type compounds, which started more than three decades ago did not resulted in materials of more than about 3% H storage capacities. The 7.5% H content of the Mg hydride is still of attracting interest but though the absorption has been achieved at lower temperatures by ball milling magnesium with various amounts of nickel, the desorption can not be attained at 1 bar H 2 below 280 deg. C and the kinetics of the process is too slow. In the last decade, the attention is focused on another class of compounds, the complex hydrides of aluminum with alkali metals (alanates), due to their high hydrogen content. It was found that doping with Ti-based catalysts improve the hydrogenation/dehydrogenation conditions of NaAlH 4 . Later on, it was shown that ball milling with solid state catalysts greatly improve the hydrogen desorption kinetics of NaAlH 4 , and this also helps to the rehydriding process. The hydrogen desorption from NaAlH 4 occurs in three steps, it shows a reversible storage capacity of 5.5% H and this led to further research work for a better knowledge of its application relating properties. In this work, ball milling experiments on Na

  19. Hydrogen storage in nanostructured materials

    Energy Technology Data Exchange (ETDEWEB)

    Assfour, Bassem

    2011-02-28

    Hydrogen is an appealing energy carrier for clean energy use. However, storage of hydrogen is still the main bottleneck for the realization of an energy economy based on hydrogen. Many materials with outstanding properties have been synthesized with the aim to store enough amount of hydrogen under ambient conditions. Such efforts need guidance from material science, which includes predictive theoretical tools. Carbon nanotubes were considered as promising candidates for hydrogen storage applications, but later on it was found to be unable to store enough amounts of hydrogen under ambient conditions. New arrangements of carbon nanotubes were constructed and hydrogen sorption properties were investigated using state-of-the-art simulation methods. The simulations indicate outstanding total hydrogen uptake (up to 19.0 wt.% at 77 K and 5.52wt.% at 300 K), which makes these materials excellent candidates for storage applications. This reopens the carbon route to superior materials for a hydrogen-based economy. Zeolite imidazolate frameworks are subclass of MOFs with an exceptional chemical and thermal stability. The hydrogen adsorption in ZIFs was investigated as a function of network geometry and organic linker exchange. Ab initio calculations performed at the MP2 level to obtain correct interaction energies between hydrogen molecules and the ZIF framework. Subsequently, GCMC simulations are carried out to obtain the hydrogen uptake of ZIFs at different thermodynamic conditions. The best of these materials (ZIF-8) is found to be able to store up to 5 wt.% at 77 K and high pressure. We expected possible improvement of hydrogen capacity of ZIFs by substituting the metal atom (Zn{sup 2+}) in the structure by lighter elements such as B or Li. Therefore, we investigated the energy landscape of LiB(IM)4 polymorphs in detail and analyzed their hydrogen storage capacities. The structure with the fau topology was shown to be one of the best materials for hydrogen storage. Its

  20. Microwavable thermal energy storage material

    Science.gov (United States)

    Salyer, I.O.

    1998-09-08

    A microwavable thermal energy storage material is provided which includes a mixture of a phase change material and silica, and a carbon black additive in the form of a conformable dry powder of phase change material/silica/carbon black, or solid pellets, films, fibers, moldings or strands of phase change material/high density polyethylene/ethylene vinyl acetate/silica/carbon black which allows the phase change material to be rapidly heated in a microwave oven. The carbon black additive, which is preferably an electrically conductive carbon black, may be added in low concentrations of from 0.5 to 15% by weight, and may be used to tailor the heating times of the phase change material as desired. The microwavable thermal energy storage material can be used in food serving applications such as tableware items or pizza warmers, and in medical wraps and garments. 3 figs.

  1. Aube storage centres - 2005 review

    International Nuclear Information System (INIS)

    2006-07-01

    The National Radioactive Waste Management Agency (Andra), was established by the December 1991 Waste Act as a public body in charge of the long-term management of all radioactive waste, under the supervision of the Ministry of Ecology, Energy, Sustainable Development and the Sea (formerly the Ministry of Industry and the Ministry of Environment), and the Ministry of Research. The Andra operates two storage centers in the Aube region (France): the center for short-lived low- and intermediate-level wastes, and the center for very-low-level radioactive wastes. This report presents a review of the activities of both centers for 2005: deliveries, storage and processing, maintenance, incidents, personnel security, installations and environmental monitoring, effluents, budget and revenues, personnel, taxes, public information and actions of communication

  2. Geological storage of radioactive waste

    International Nuclear Information System (INIS)

    Barthoux, A.

    1983-01-01

    Certain radioactive waste contains substances which present, although they disappear naturally in a progressive manner, a potential risk which can last for very long periods, of over thousands of years. To ensure a safe long-term handling, provision has been made to bury it deep in stable geological structures which will secure its confinement. Radioactive waste is treated and conditioned to make it insoluble and is then encased in matrices which are to immobilize them. The most radioactive waste is thus incorporated in a matrix of glass which will ensure the insulation of the radioactive substances during the first thousands of years. Beyond that time, the safety will be ensured by the properties of the storage site which must be selected from now on. Various hydrogeological configurations have been identified. They must undergo detailed investigations, including even the creation of an underground laboratory. This document also presents examples of underground storage installations which are due to be built [fr

  3. Levels of available phosphorus and calcium for broilers from 8 to 35 days of age fed rations containing phytase Níveis de fósforo disponível e de cálcio para frangos de corte de 8 a 35 dias de idade alimentados com rações contendo fitase

    Directory of Open Access Journals (Sweden)

    Adimar Cardoso Júnior

    2010-06-01

    Full Text Available Two experiments using Cobb broiler chicks from 8 to 35 days of age were carried out to evaluate the effect of reducing levels of calcium and available phosphorus in diets supplemented with 500 ftu phytase/kg on the performance of the birds, the content of ashes in the tibia, the metabolizable energy of the diet, and the metabolizability of the dry matter and crude protein. It was used 1,404 broiler chicks in the experiment 1 to evaluate feed intake, weight gain, food conversion and percentage of the ashes in the tibia. In the experiment 2, simultaneously carried out with experiment 1, a total of 390 birds were transferred to a metabolism room to determine the metabolizable energy and metabolizability of the dry matter and crude protein. It was used in the two experiments, a complete random design in a 3 × 4 + 1 factorial scheme with three levels of available phosphorus (0.375; 0.325; and 0.275% and four levels of calcium (0.85; 0.75; 0.65 and 0.55% in the diets, supplemented with phytase. It was also used a control diet without phytase, based on corn and soybean bran, formulated with 0.425% of available phosphorus and 0.85% of calcium. In the experiment 1, the reduction of levels of calcium and phosphorus did not cause a significant difference on the performance and percentage of bone ashes. The levels of calcium and available phosphorus used in the experiment 2 can be reduced down to 0.65 and 0.325%, respectively, because the effects are similar to those obtained with the currently suggested levels.Dois experimentos com pintos de corte da linhagem Cobb no período de 8 a 35 dias de idade foram realizados para avaliar o efeito da redução dos níveis de cálcio e fósforo disponível (Pdisp em rações suplementadas com 500 ftu de fitase/kg sobre o desempenho das aves, o teor de cinzas na tíbia, a energia metabolizável (EMAn da dieta e a metabolizabilidade da matéria seca (MS e da proteína bruta (PB. No experimento 1, foram utilizados 1

  4. Lysosomal Storage Diseases To date

    OpenAIRE

    HOFFMANN, Björn; MAYATEPEK, Ertan

    2011-01-01

    New therapeutic options and progress of approved therapies have made Lysosomal Storage Diseases (LSDs) one of the most exciting group of diseases. This review aims to summarize current achievements in these particular disorders and to give an outlook towards possible future treatment options. Enzyme replacement therapy is the gold standard for Gaucher disease, Fabry disease, Mucopolysaccharidosis type I, II, and VI, and for Pompe disease. Besides this, substrate reduction has been approved fo...

  5. Efficient Energy-Storage Concept

    Science.gov (United States)

    Brantley, L. W. J.; Rupp, C.

    1982-01-01

    Space-platform energy-storage and attitude-stabilization system utilizes variable moment of inertia of two masses attached to ends of retractable cable. System would be brought to its initial operating speed by gravity-gradient pumping. When fully developed, concept could be part of an orbiting solar-energy collection system. Energy would be temporarily stored in system then transmitted to Earth by microwaves or other method.

  6. Two superconducting storage rings: ISABELLE

    International Nuclear Information System (INIS)

    Sanford, J.R.

    1978-01-01

    The general features of the design and the status of the ISABELLE storage ring project at the present time are reported. It brings up to date the results reported at the National Particle Accelerator Conference in March 1977. The most significant change since that time has been an upgrading of the energy of the overall facility, and acceptance of the project by the Department of Energy

  7. Searchable Encryption in Cloud Storage

    OpenAIRE

    Ren-Junn Hwang; Chung-Chien Lu; Jain-Shing Wu

    2014-01-01

    Cloud outsource storage is one of important services in cloud computing. Cloud users upload data to cloud servers to reduce the cost of managing data and maintaining hardware and software. To ensure data confidentiality, users can encrypt their files before uploading them to a cloud system. However, retrieving the target file from the encrypted files exactly is difficult for cloud server. This study proposes a protocol for performing multikeyword searches for encrypted cloud data by applying ...

  8. Hydrogen storage and generation system

    Science.gov (United States)

    Dentinger, Paul M.; Crowell, Jeffrey A. W.

    2010-08-24

    A system for storing and generating hydrogen generally and, in particular, a system for storing and generating hydrogen for use in an H.sub.2/O.sub.2 fuel cell. The hydrogen storage system uses the beta particles from a beta particle emitting material to degrade an organic polymer material to release substantially pure hydrogen. In a preferred embodiment of the invention, beta particles from .sup.63Ni are used to release hydrogen from linear polyethylene.

  9. Complex hydrides for hydrogen storage

    Science.gov (United States)

    Zidan, Ragaiy

    2006-08-22

    A hydrogen storage material and process of forming the material is provided in which complex hydrides are combined under conditions of elevated temperatures and/or elevated temperature and pressure with a titanium metal such as titanium butoxide. The resulting fused product exhibits hydrogen desorption kinetics having a first hydrogen release point which occurs at normal atmospheres and at a temperature between 50.degree. C. and 90.degree. C.

  10. Low emittance electron storage rings

    Science.gov (United States)

    Levichev, E. B.

    2018-01-01

    Low-emittance electron (positron) beams are essential for synchrotron light sources, linear collider damping rings, and circular Crab Waist colliders. In this review, the principles and methods of emittance minimization are discussed, prospects for developing relativistic electron storage rings with small beam phase volume are assessed, and problems related to emittance minimization are examined together with their possible solutions. The special features and engineering implementation aspects of various facilities are briefly reviewed.

  11. Beyond peak reservoir storage? A global estimate of declining water storage capacity in large reservoirs

    NARCIS (Netherlands)

    Wisser, D.; Frolking, S.; Hagen, Stephen; Bierkens, M.F.P.|info:eu-repo/dai/nl/125022794

    2013-01-01

    Water storage is an important way to cope with temporal variation in water supply anddemand. The storage capacity and the lifetime of water storage reservoirs can besignificantly reduced by the inflow of sediments. A global, spatially explicit assessment ofreservoir storage loss in conjunction with

  12. Energy storage in ceramic dielectrics

    International Nuclear Information System (INIS)

    Love, G.R.

    1990-01-01

    Historically, multilayer ceramic capacitors (MLC's) have not been considered for energy storage applications for two primary reasons. First, physically large ceramic capacitors were very expensive and, second, total energy density obtainable was not nearly so high as in electrolytic capacitor types. More recently, the fabrication technology for MLC's has improved significantly, permitting both significantly higher energy density and significantly lower costs. Simultaneously, in many applications, total energy storage has become smaller, and the secondary requirements of very low effective series resistance and effective series inductance (which, together, determine how efficiently the energy may be stored and recovered) have become more important. It is therefore desirable to reexamine energy storage in ceramics for contemporary commercial and near-commercial dielectrics. Stored energy is proportional to voltage squared only in the case of paraelectric insulators, because only they have capacitance that is independent of bias voltage. High dielectric constant materials, however, are ferroics (that is ferroelectric and/or antiferroelectric) and display significant variation of effective dielectric constant with bias voltage

  13. Storage racks for spent fuels

    International Nuclear Information System (INIS)

    Inoue, Tatsumi.

    1983-01-01

    Purpose: To provide a storage rack which is light in weight, excellent in constructing performance, earthquake proof and allowable for thermal displacement. Constitution: The rack frame is constituted by disposing mounting seat plates at the legs of profiled-steel post members on a rack-mounting plate as a mounting seat by way of mounting liner plates and then weld-joining each of upper, medium and lower beam members and truss members of the profiled-steel posts by the use of connecting plates. Guide plates are laid transversely and joined onto each of the thus formed upper, medium and lower stage frames. Since apertures for mounting guide tubes are opened to each of the guide plates at a predetermined pitch, the storage rack unit is constituted by mounting guide tubes to the apertures. Then, the storage rack is mounted by means of slide keys to the mounting plates where slight amount of sliding or thermal displacement can be absorbed. (Horiuchi, T.)

  14. Carbon dioxide capture and storage

    International Nuclear Information System (INIS)

    Durand, B.

    2011-01-01

    The author first highlights the reasons why storing carbon dioxide in geological formations could be a solution in the struggle against global warming and climate change. Thus, he comments various evolutions and prospective data about carbon emissions or fossil energy consumption as well as various studies performed by international bodies and agencies which show the interest of carbon dioxide storage. He comments the evolution of CO 2 contributions of different industrial sectors and activities, notably in France. He presents the different storage modes and methods which concern different geological formations (saline aquifers, abandoned oil or gas fields, not exploitable coal seams) and different processes (sorption, carbonation). He discusses the risks associated with these storages, the storable quantities, evokes some existing installations in different countries. He comments different ways to capture carbon dioxide (in post-combustion, through oxy-combustion, by pre-combustion) and briefly evokes some existing installations. He evokes the issue of transport, and discusses efficiency and cost aspects, and finally has few words on legal aspects and social acceptability

  15. Adsorptive storage of natural gas

    International Nuclear Information System (INIS)

    Yan, Song; Lang, Liu; Licheng, Ling

    2001-01-01

    The Adsorbed Natural Gas (ANG) storage technology is reviewed. The present status, theoretical limits and operational problems are discussed. Natural gas (NG) has a considerable advantage over conventional fuels both from an environmental point of view and for its natural abundance. However, as well known, it has a two fold disadvantage compared with liquid fuels: it is relatively expensive to transport from the remote areas, and its energy density (heat of combustion/volume) is low. All these will restrict its use. Compressed natural gas (CNG) may be a solution, but high pressures are needed (up to 25 MPa) for use in natural-gas fueled vehicles, and the large cost of the cylinders for storage and the high-pressure facilities necessary limit the practical use of CNG. Alternatively, adsorbed natural gas (ANG) at 3 - 4 MPa offers a very high potential for exploitation in both transport and large-scale applications. At present, research about this technology mainly focuses on: to make adsorbents with high methane adsorption capacity; to make clear the effects of heat of adsorption and the effect of impurities in natural gas on adsorption and desorption capacity. This paper provides an overview of current technology and examines the relations between fundamentals of adsorption and ANG storage. (authors)

  16. Storage device of reactor fuel

    International Nuclear Information System (INIS)

    Nakamura, Masaaki.

    1997-01-01

    The present invention concerns storage of spent fuels and provides a storage device capable of securing container-cells in shielding water by remote handling and moving and securing the container-cells easily. Namely, a horizontal support plate has a plurality of openings formed in a lattice like form and is disposed in a pit filled with water. The container-cell has a rectangular cross section, and is inserted and disposed vertically in the openings. Securing members are put between the container-cells above the horizontal support plate, and constituted so as to be expandable from above by remote handling. The securing member is preferably comprised of a vertical screw member and an expandable urging member. Since securing members for securing the container-cells for incorporating reactor fuels are disposed to the horizontal support plate controllable from above by the remote handling, fuel storage device can be disposed without entering into a radiation atmosphere. The container-cells can be settled and exchanged easily after starting of the use of a fuel pit. (I.S.)

  17. Spent fuel storage criticality safety

    Energy Technology Data Exchange (ETDEWEB)

    Amin, E M; Elmessiry, A M [National center of nuclear safety and radiation control atomic energy authority, (Egypt)

    1995-10-01

    The safety aspects of the spent fuel storage pool of the Egyptian test and research reactor one (ET-R R-1) has to be assessed as part of a general overall safety evaluation to be included in a safety analysis report (SAR) for this reactor. The present work treats the criticality safety of the spent fuel storage pool. Conservative calculations based on using fresh fuel has been performed, as well as less conservative using burned fuel. The calculations include cross library generation for burned and fresh fuel for the ET-R R-1 fuel type. The WIMS-D 4 code has been used in library generation and burn up calculation the critically calculations are performed using the one dimensional transport code (ANISN) and the two dimensional diffusion code (DIXY2). The possibility of increasing the storage efficiency either by insertion of absorber sheets of soluble boron salts or by reduction of fuel rod separation has been studied. 8 figs., 2 tabs.

  18. Red Blood Cell Storage Lesion

    Directory of Open Access Journals (Sweden)

    Daryl J. Kor

    2009-10-01

    Full Text Available The past two decades have witnessed increased scrutiny regarding efficacy and risk of the once unquestioned therapy of red blood cell (RBC transfusion. Simultaneously, a variety of changes have been identified within the RBC and storage media during RBC preservation that are correlated with reduced tissue oxygenation and transfusion-associated adverse effects. These alterations are collectively termed the storage lesion and include extensive biochemical, biomechanical, and immunologic changes involving cells of diverse origin. Time-dependent falls is 2,3-diphosphoglycerate, intracellular RBC adenosine triphosphate, and nitric oxide have been shown to impact RBC deformability and delivery of oxygen to the end-organ. The accumulation of biologic response modifiers such as soluble CD40 ligand (sCD40L, lysophosphatidylcholine (lyso-PC, and Regulated on Activation, Normal T-cell Expressed and Secreted (RANTES have been associated with altered recipient immune function as well. This review will address the alterations occurring within the RBC and storage media during RBC preservation and will address the potential clinical consequence thereof.

  19. Storage - Nuclear wastes are overflowing

    International Nuclear Information System (INIS)

    Dupin, Ludovic

    2016-01-01

    This article highlights that the dismantling of French nuclear installations will generate huge volumes of radioactive wastes and that France may lack space to store them. The Cigeo project (underground storage) only concerns 0.2 per cent of the nuclear waste volume produced by France in 50 years. If storage solutions exist for less active wastes, they will soon be insufficient, notably because of the quantity of wastes produced by the dismantling of existing reactors and fuel processing plants. Different assessments of these volumes are evoked. In order to store them, the ANDRA made a second call for innovating projects which would enable a reduction of this volume by 20 to 30 per cent. The article also evokes projects selected after the first call for projects. They mainly focus on nuclear waste characterization which will result in a finer management of wastes regarding their storage destination. Cost issues and the opposition of anti-nuclear NGOs are still obstacles to the development of new sites

  20. Spent fuel storage criticality safety

    International Nuclear Information System (INIS)

    Amin, E.M.; Elmessiry, A.M.

    1995-01-01

    The safety aspects of the spent fuel storage pool of the Egyptian test and research reactor one (ET-R R-1) has to be assessed as part of a general overall safety evaluation to be included in a safety analysis report (SAR) for this reactor. The present work treats the criticality safety of the spent fuel storage pool. Conservative calculations based on using fresh fuel has been performed, as well as less conservative using burned fuel. The calculations include cross library generation for burned and fresh fuel for the ET-R R-1 fuel type. The WIMS-D 4 code has been used in library generation and burn up calculation the critically calculations are performed using the one dimensional transport code (ANISN) and the two dimensional diffusion code (DIXY2). The possibility of increasing the storage efficiency either by insertion of absorber sheets of soluble boron salts or by reduction of fuel rod separation has been studied. 8 figs., 2 tabs

  1. Energy Conversion and Storage Program

    Energy Technology Data Exchange (ETDEWEB)

    Cairns, E.J.

    1992-03-01

    The Energy Conversion and Storage Program applies chemistry and materials science principles to solve problems in (1) production of new synthetic fuels, (2) development of high-performance rechargeable batteries and fuel cells, (3) development of advanced thermochemical processes for energy conversion, (4) characterization of complex chemical processes, and (5) application of novel materials for energy conversion and transmission. Projects focus on transport-process principles, chemical kinetics, thermodynamics, separation processes, organic and physical chemistry, novel materials, and advanced methods of analysis. Electrochemistry research aims to develop advanced power systems for electric vehicle and stationary energy storage applications. Topics include identification of new electrochemical couples for advanced rechargeable batteries, improvements in battery and fuel-cell materials, and the establishment of engineering principles applicable to electrochemical energy storage and conversion. Chemical Applications research includes topics such as separations, catalysis, fuels, and chemical analyses. Included in this program area are projects to develop improved, energy-efficient methods for processing waste streams from synfuel plants and coal gasifiers. Other research projects seek to identify and characterize the constituents of liquid fuel-system streams and to devise energy-efficient means for their separation. Materials Applications research includes the evaluation of the properties of advanced materials, as well as the development of novel preparation techniques. For example, the use of advanced techniques, such as sputtering and laser ablation, are being used to produce high-temperature superconducting films.

  2. Relação cálcio:fósforo disponível e níveis de fitase para poedeiras semipesadas no primeiro e segundo ciclos de postura Calcium:available phosphorus ratio and phytase levels for semi heavy laying hens in the first and second posture cycle

    Directory of Open Access Journals (Sweden)

    José Humberto Vilar da Silva

    2008-12-01

    Full Text Available Dois experimentos foram realizados para investigar a relação cálcio (Ca:fósforo disponível (Pd e o nível de fitase (UF no primeiro e segundo ciclos de postura. No primeiro ciclo de postura, 128 aves foram distribuídas em arranjo fatorial 3 × 2 + 1, composto de três relações Ca:Pd (14:1 = 4,2% Ca e 0,30% Pd; 12:1 = 3,5% Ca e 0,30% Pd; e 9:1 = 3,5% Ca e 0,38% Pd, dois níveis de fitase (0 e 600 UF e uma relação Ca:Pd controle (11:1 - 4,2% Ca e 0,38% Pd. No segundo ciclo de postura, 240 aves foram distribuídas em arranjo fatorial 2 × 2 × 2, composto de dois níveis de cálcio (3,5 e 4,2%, dois de fósforo disponível (0,30 e 0,38% e dois de fitase (0 e 600 UF. No primeiro ciclo, entre as aves alimentadas com as rações sem fitase, o maior peso dos ovos (PO foi obtido com a relação 9:1 (3,5% Ca e 0,38% Pd e o menor, com a relação 12:1 (3,5% Ca e 0,30% Pd. A melhor massa de ovos (MO e conversão alimentar por massa de ovos (CAMO foram observadas nas aves alimentadas com a ração com relação Ca:Pd 14:1 e a pior, com a ração formulada com relação 12:1. Nas aves alimentadas com a ração com fitase, a melhor conversão alimentar por massa de ovos foi obtida com a relação 12:1 (3,5% Ca e 0,30% Pd e a pior, com a relação 9:1 (3,5% Ca e 0,38% Pd. No segundo ciclo, o consumo de ração (CR reduziu com o aumento dos níveis de cálcio (3,5 para 4,2%, fósforo disponível (0,30 para 0,38% e fitase (0 para 600. As conversões alimentares por massa de ovos e por dúzia de ovos melhoraram, respectivamente, com o aumento dos níveis de fósforo disponível e de fitase, enquanto a gravidade específica melhorou com o aumento do nível de cálcio da ração. Para poedeiras no primeiro ciclo de postura, recomendam-se as relações 14:1 (4,2% Ca:0,30% Pd sem fitase e 12:1 (3,5% Ca:0,30% Pd com 600 UF e, para aves no segundo ciclo de postura, recomenda-se relação correspondente a 4,2% Ca e 0,38% Pd. A suplementação de ra

  3. Donnees Preliminaires Sur l'entomofaune de Lippia multiflora Mold ...

    African Journals Online (AJOL)

    En outre, elles sont parfois minées par une espèce d'abeille et une espèce de guêpe qui y accomplissent leur cycle de développement. Comme insectes utiles, des mantes religieuses et une espèce de Reduviidae ont été recensées. Un Hyménoptère parasitoïde de la famille des Pteromalidae, a émergé à partir des galles ...

  4. Elaboration d'entrep\\^ots de donn\\'ees complexes

    OpenAIRE

    Teste, Olivier

    2010-01-01

    In this paper, we study the data warehouse modelling used in decision support systems. We provide an object-oriented data warehouse model allowing data warehouse description as a central repository of relevant, complex and temporal data. Our model integrates three concepts such as warehouse object, environment and warehouse class. Each warehouse object is composed of one current state, several past states (modelling its detailed evolutions) and several archive states (modelling its evolutions...

  5. Methodes de provision technique et applications aux donnees ...

    African Journals Online (AJOL)

    assurance. Un bref résumé des différentes méthodes a été donné ainsi que les hypothèses des modèles. Une étude plus approfondie montre des limites de ces méthodes dans l'approche actuelle dans le choix d'un Tail Factor. En effet, les valeurs ...

  6. Influence of Storage on Briquettes Mechanical Properties

    Directory of Open Access Journals (Sweden)

    Brožek M.

    2014-09-01

    Full Text Available The effects of the storage place, placing manner, and storage time on mechanical properties of briquettes made from birch chips were laboratorily tested. A unique methodology developed by the present author enabling a relatively easy assessment of mechanical properties of the briquettes is described. The briquettes properties were evaluated by their density and rupture force determination. From the test results it follows that if the briquettes are stored in a well closed plastic bag, neither the place nor the storage time influence significantly their life time. When stored in a net plastic bag, the briquettes get seriously damaged, namely depending on their storage place and storage time.

  7. CO2 storage in Sweden

    International Nuclear Information System (INIS)

    Ekstroem, Clas; Andersson, Annika; Kling, Aasa; Bernstone, Christian; Carlsson, Anders; Liljemark, Stefan; Wall, Caroline; Erstedt, Thomas; Lindroth, Maria; Tengborg, Per; Edstroem, Mikael

    2004-07-01

    This study considers options, that could be feasible for Sweden, to transport and geologically store CO 2 , providing that technology for electricity production with CO 2 capture will be available in the future and also acceptable from cost- and reliability point of view. As a starting point, it is assumed that a new 600-1000 MW power plant, fired with coal or natural gas, will be constructed with CO 2 capture and localised to the Stockholm, Malmoe or Goeteborg areas. Of vital importance for storage of carbon dioxide in a reservoir is the possibility to monitor its distribution, i.e. its migration within the reservoir. It has been shown in the SACS-project that the distribution of carbon dioxide within the reservoir can be monitored successfully, mainly by seismic methods. Suitable geologic conditions and a large storage potential seems to exist mainly in South West Scania, where additional knowledge on geology/hydrogeology has been obtained since the year 2000 in connection to geothermal energy projects, and in the Eastern part of Denmark, bordering on South West Scania. Storage of carbon dioxide from the Stockholm area should not be excluded, but more studies are needed to clarify the storage options within this area. The possibilities to use CO 2 for enhanced oil recovery, EOR, in i.a. the North Sea should be investigated, in order to receive incomes from the CO 2 and shared costs for infrastructure, and by this also make the CO 2 regarded as a trading commodity, and thereby achieving a more favourable position concerning acceptance, legal issues and regulations. The dimensions of CO 2 -pipelines should be similar to those for natural natural gas, although regarding some aspects they have different design and construction prerequisites. To obtain cost efficiency, the transport distances should be kept short, and possibilities for co-ordinated networks with short distribution pipelines connected to common main pipelines, should be searched for. Also, synergies

  8. Interim storage of radioactive waste packages

    International Nuclear Information System (INIS)

    1998-01-01

    This report covers all the principal aspects of production and interim storage of radioactive waste packages. The latest design solutions of waste storage facilities and the operational experiences of developed countries are described and evaluated in order to assist developing Member States in decision making and design and construction of their own storage facilities. This report is applicable to any category of radioactive waste package prepared for interim storage, including conditioned spent fuel, high level waste and sealed radiation sources. This report addresses the following issues: safety principles and requirements for storage of waste packages; treatment and conditioning methods for the main categories of radioactive waste; examples of existing interim storage facilities for LILW, spent fuel and high level waste; operational experience of Member States in waste storage operations including control of storage conditions, surveillance of waste packages and observation of the behaviour of waste packages during storage; retrieval of waste packages from storage facilities; technical and administrative measures that will ensure optimal performance of waste packages subject to various periods of interim storage

  9. Energy storage. A challenge for energy transition

    International Nuclear Information System (INIS)

    Bart, Jean-Baptiste; Nekrasov, Andre; Pastor, Emmanuel; Benefice, Emmanuel; Brincourt, Thierry; Brisse, Annabelle; Cagnac, Albannie; Delille, Gauthier; Hinchliffe, Timothee; Lancel, Gilles; Jeandel, Elodie; Lefebvre, Thierry; Loevenbruck, Philippe; Penneau, Jean-Francois; Soler, Robert; Stevens, Philippe; Radvanyi, Etienne; Torcheux, Laurent

    2017-06-01

    Written by several EDF R and D engineers, this book aims at presenting an overview of knowledge and know-how of EDF R and D in the field of energy storage, and at presenting the different technologies and their application to electric power systems. After a description of the context related to a necessary energy transition, the authors present the numerous storage technologies. They distinguish direct storage of power (pumped storage water stations, compressed air energy storage, flywheels, the various electrochemical batteries, metal-air batteries, redox flow batteries, superconductors), thermal storage (power to heat, heat to power) and hydrogen storage (storage under different forms), and propose an overview of the situation of standardisation of storage technologies. In the next part, they give an overview of the main services provided by storage to the electric power system: production optimisation, frequency adjustment, grid constraint resolution, local smoothing of PV and wind production, supply continuity. The last part discusses perspectives regarding the role of tomorrow's storage in the field of electrical mobility, for emerging markets, and with respect to different scenarios

  10. Electric energy storage - Overview of technologies

    International Nuclear Information System (INIS)

    Boye, Henri

    2013-01-01

    Energy storage is a challenging and costly process, as electricity can only be stored by conversion into other forms of energy (e.g. potential, thermal, chemical or magnetic energy). The grids must be precisely balanced in real time and it must be made sure that the cost of electricity is the lowest possible. Storage of electricity has many advantages, in centralized mass storages used for the management of the transmission network, or in decentralized storages of smaller dimensions. This article presents an overview of the storage technologies: mechanical storage in hydroelectric and pumped storage power stations, compressed air energy storage (CAES), flywheels accumulating kinetic energy, electrochemical batteries with various technologies, traditional lead acid batteries, lithium ion, sodium sulfur (NaS) and others, including vehicle to grid, sensible heat thermal storage, superconducting magnetic energy storage (SMES), super-capacitors, conversion into hydrogen... The different technologies are compared in terms of cost and level of maturity. The development of intermittent renewable energies will result in a growing need for mechanisms to regulate energy flow and innovative energy storage solutions seem well positioned to develop. (author)

  11. Costing of spent nuclear fuel storage

    International Nuclear Information System (INIS)

    2009-01-01

    This report deals with economic analysis and cost estimation, based on exploration of relevant issues, including a survey of analytical tools for assessment and updated information on the market and financial issues associated with spent fuel storage. The development of new storage technologies and changes in some of the circumstances affecting the costs of spent fuel storage are also incorporated. This report aims to provide comprehensive information on spent fuel storage costs to engineers and nuclear professionals as well as other stakeholders in the nuclear industry. This report is meant to provide informative guidance on economic aspects involved in selecting a spent fuel storage system, including basic methods of analysis and cost data for project evaluation and comparison of storage options, together with financial and business aspects associated with spent fuel storage. After the review of technical options for spent fuel storage in Section 2, cost categories and components involved in the lifecycle of a storage facility are identified in Section 3 and factors affecting costs of spent fuel storage are then reviewed in the Section 4. Methods for cost estimation and analysis are introduced in Section 5, and other financial and business aspects associated with spent fuel storage are discussed in Section 6.

  12. Intrusion Detection, Diagnosis, and Recovery with Self-Securing Storage

    National Research Council Canada - National Science Library

    Strunk, John D; Goodson, Garth R; Pennington, Adam G; Soules, Craig A; Ganger, Gregory R

    2002-01-01

    .... From behind a thin storage interface (e.g., SCSI or CIFS), a self-securing storage server can watch storage requests, keep a record of all storage activity, and prevent compromised clients from destroying stored data...

  13. Management and storage of spent fuel from CEA research reactors

    International Nuclear Information System (INIS)

    Merchie, F.

    1996-01-01

    CEA research reactors and their interim spent fuel storage facilities are described. Long-term solutions for spent fuel storage problems, involving wet storage at PEGASE or dry storage at CASCAD, are outlined in some detail. (author)

  14. High Density Digital Data Storage System

    Science.gov (United States)

    Wright, Kenneth D., II; Gray, David L.; Rowland, Wayne D.

    1991-01-01

    The High Density Digital Data Storage System was designed to provide a cost effective means for storing real-time data from the field-deployable digital acoustic measurement system. However, the high density data storage system is a standalone system that could provide a storage solution for many other real time data acquisition applications. The storage system has inputs for up to 20 channels of 16-bit digital data. The high density tape recorders presently being used in the storage system are capable of storing over 5 gigabytes of data at overall transfer rates of 500 kilobytes per second. However, through the use of data compression techniques the system storage capacity and transfer rate can be doubled. Two tape recorders have been incorporated into the storage system to produce a backup tape of data in real-time. An analog output is provided for each data channel as a means of monitoring the data as it is being recorded.

  15. Efficiency of Compressed Air Energy Storage

    DEFF Research Database (Denmark)

    Elmegaard, Brian; Brix, Wiebke

    2011-01-01

    The simplest type of a Compressed Air Energy Storage (CAES) facility would be an adiabatic process consisting only of a compressor, a storage and a turbine, compressing air into a container when storing and expanding when producing. This type of CAES would be adiabatic and would if the machines...... were reversible have a storage efficiency of 100%. However, due to the specific capacity of the storage and the construction materials the air is cooled during and after compression in practice, making the CAES process diabatic. The cooling involves exergy losses and thus lowers the efficiency...... of the storage significantly. The efficiency of CAES as an electricity storage may be defined in several ways, we discuss these and find that the exergetic efficiency of compression, storage and production together determine the efficiency of CAES. In the paper we find that the efficiency of the practical CAES...

  16. The prospects for dry fuel storage

    International Nuclear Information System (INIS)

    Harris, G.G.; Elliott, D.

    1994-01-01

    Dry storage of spent nuclear fuels is one method of dealing with radioactive waste. This article reports from a one day seminar on future prospects for dry fuel storage held in November 1993. Dry storage in an inert gas or air environment in vaults or casks, is an alternative to wet storage in water-filled ponds. Both wet and dry storage form part of the Interim Storage option for radioactive waste materials, and form alternatives to reprocessing or direct disposal in a deep repository. It has become clear that a large market for dry fuel storage will exist in the future. It will therefore be necessary to ensure that the various technical, safety, commercial, legislative and political constraints associated with it can be met effectively. (UK)

  17. Storage of Maize in Purdue Improved Crop Storage (PICS) Bags.

    Science.gov (United States)

    Williams, Scott B; Murdock, Larry L; Baributsa, Dieudonne

    2017-01-01

    Interest in using hermetic technologies as a pest management solution for stored grain has risen in recent years. One hermetic approach, Purdue Improved Crop Storage (PICS) bags, has proven successful in controlling the postharvest pests of cowpea. This success encouraged farmers to use of PICS bags for storing other crops including maize. To assess whether maize can be safely stored in PICS bags without loss of quality, we carried out laboratory studies of maize grain infested with Sitophilus zeamais (Motshulsky) and stored in PICS triple bags or in woven polypropylene bags. Over an eight month observation period, temperatures in the bags correlated with ambient temperature for all treatments. Relative humidity inside PICS bags remained constant over this period despite the large changes that occurred in the surrounding environment. Relative humidity in the woven bags followed ambient humidity closely. PICS bags containing S. zeamais-infested grain saw a significant decline in oxygen compared to the other treatments. Grain moisture content declined in woven bags, but remained high in PICS bags. Seed germination was not significantly affected over the first six months in all treatments, but declined after eight months of storage when infested grain was held in woven bags. Relative damage was low across treatments and not significantly different between treatments. Overall, maize showed no signs of deterioration in PICS bags versus the woven bags and PICS bags were superior to woven bags in terms of specific metrics of grain quality.

  18. Underground storage of nuclear waste

    International Nuclear Information System (INIS)

    Russell, J.E.

    1977-06-01

    The objective of the National Waste Terminal Storage (NWTS) Program is to provide facilities in various deep geologic formations at multiple locations in the United States which will safely dispose of commerical radioactive waste. The NWTS Program is being administered for the Energy Research and Development Administration (ERDA) by the Office of Waste Isolation (OWI), Union Carbide Corporation, Nuclear Division. OWI manages projects that will lead to the location, construction, and operation of repositories, including all surface and underground engineering and facility design projects and technical support projects. 7 refs., 5 figs

  19. Nanocarbons for advanced energy storage

    CERN Document Server

    Feng, Xinliang

    2015-01-01

    This first volume in the series on nanocarbons for advanced applications presents the latest achievements in the design, synthesis, characterization, and applications of these materials for electrochemical energy storage. The highly renowned series and volume editor, Xinliang Feng, has put together an internationally acclaimed expert team who covers nanocarbons such as carbon nanotubes, fullerenes, graphenes, and porous carbons. The first two parts focus on nanocarbon-based anode and cathode materials for lithium ion batteries, while the third part deals with carbon material-based supercapacit

  20. Cluster storage for COMPASS tokamak

    Czech Academy of Sciences Publication Activity Database

    Písačka, Jan; Hron, Martin; Janky, Filip; Pánek, Radomír

    2012-01-01

    Roč. 87, č. 12 (2012), s. 2238-2241 ISSN 0920-3796. [IAEA Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research/8./. San Francisco, 20.06.2011-24.06.2011] R&D Projects: GA ČR GAP205/11/2470; GA MŠk 7G10072; GA MŠk(CZ) LM2011021 Institutional research plan: CEZ:AV0Z20430508 Keywords : COMPASS * Tokamak * Codac * Cluster * GlusterFS * Storage Subject RIV: BL - Plasma and Gas Discharge Physics Impact factor: 0.842, year: 2012 http://dx.doi.org/10.1016/j.fusengdes.2012.09.006