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Roux, Pierre.
CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Dept. d'Electronique et Instrumentation Nucleaire
CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Dept. d'Electronique et Instrumentation Nucleaire
AbstractAbstract
[en] NEPTUNIX 2 is a package which carries out the simulation of complex processes described by numerous mixed non linear algebraic and differential equations written in the implicit form. Logical variables 'algebrized' may appear in equations. NEPTUNIX 2 package is divided into two major steps: a non numerical step and a numerical step. Non numerical step translates the input description (a model) of the process to be simulated into a FORTRAN language program, optimizing the execution time of the numerical step. Numerical package consists of assembling translation of the model and a fixed part. Numerical step executes simulations of the process and outputs the results. The integration method used is suitable for 'stiff' systems. Centralizing logical variables leads to accurate and efficient simulation of systems with discrete elements. Numerical package is transportable on any computer with minimum features (200 000 bytes of core memory, floating-point arithmetic, FORTRAN compiler). The present manual describes the use of the numerical package
[fr]
NEPTUNIX 2 est un logiciel permettant d'effectuer la simulation de processus complexes decrits par de nombreuses equations algebro-differentielles sous forme implicite. Des variables logiques peuvent figurer dans les equations sous forme 'algebrisee'. NEPTUNIX 2 comprend deux phases successives: une phase non numerique et une phase numerique. Durant la phase non numerique, le modele du processus a simuler est soumis comme entree et subit une traduction en langage FORTRAN assurant une optimisation poussee du temps d'execution de la phase numerique. L'assemblage d'une partie fixe et de cette traduction d'un modele constitue le logiciel de la phase numerique. La phase numerique execute les simulations de processus et sort les resultats. La methode d'integration employee est particulierement bien adaptee aux systemes dits 'raides'. La centralisation du traitement des variables logiques permet de simuler avec precision et efficacite des systemes presentant des discontinuites. Le logiciel de la phase numerique est transportable sur un ordinateur quelconque, presentant un minimum de caracteristiques (arithmetique en virgule flottante, 200 000 octets de memoire, compilateur FORTRAN). Le present manuel decrit le mode d'emploi du logiciel de la phase numeriqueOriginal Title
NEPTUNIX 2: phase numerique; manuel de l'utilisateur; simulation of complex processes
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May 1981; 140 p
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Report
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LAIRD, DANIEL L.
Sandia National Labs., Albuquerque, NM (United States); Sandia National Labs., Livermore, CA (United States). Funding organisation: US Department of Energy (United States)
Sandia National Labs., Albuquerque, NM (United States); Sandia National Labs., Livermore, CA (United States). Funding organisation: US Department of Energy (United States)
AbstractAbstract
No abstract available
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Source
1 Aug 2001; 131 p; AC04-94AL85000; Available from Sandia National Labs., Albuquerque, NM (US)
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Report
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Monsef, Y.; Zwingelstein, G.
CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Services d'Electronique
CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Services d'Electronique
AbstractAbstract
No abstract available
Original Title
Integration des equations cinetiques d'un reacteur nucleaire par le programme neptune et comparaison avec deux methodes classiques d'integration
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10 Mar 1975; 10 p
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Report
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Zach, Reto.
Atomic Energy of Canada Ltd., Pinawa, Manitoba. Whiteshell Nuclear Research Establishment
Atomic Energy of Canada Ltd., Pinawa, Manitoba. Whiteshell Nuclear Research Establishment
AbstractAbstract
[en] A flexible and interactive code, NEPTUN, has been written in FORTRAN IV for the PDP-10 computer to assess the impact on man of radionuclides in aquatic food chains. NEPTUN is based on an equilibrium model of the linear-chain type, and calculates aquatic food concentrations and doses to man. A decay term is included for the holdup time of the various food types. A total of seven food types can be selected, which include drinking water, freshwater and salt-water plants, inverebrates and fish. Thirty different diets can be implemented and five different dose factor files can be chosen. These include dose conversion factors for infants and adults based on ICRP 2 and ICRP 26 methodologies. All dose factors involve a dose commitment of 50 years, or equivalently, 50 years of chronic exposure. To date, only stochastic ICRP 26 dose caluclations have been implemented. The basic concentration factor file contains data for 211 different radionuclides; the dose factor files are less comprehensive. However, all files can be readily expanded. The output includes tables of concentrations and doses for individual radionuclides, as well as summaries for groups of radionuclides. Existing aquatic food chain models and the sources of currently-used generic concentration factors are briefly reviewed, and dose factors based on ICRP 2 and ICRP 26 methodologies are contrasted. (auth)
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Jul 1980; 73 p
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Report
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Macdonald, H.F.; Nair, S.; Mascall, R.A.
Central Electricity Generating Board, Berkeley (UK). Berkeley Nuclear Labs
Central Electricity Generating Board, Berkeley (UK). Berkeley Nuclear Labs
AbstractAbstract
[en] This report describes the quality assurance (QA) procedures which have been adopted in respect of the Environment code NECTAR (Nuclear Environmental Consequences, Transport of Activity and Risks). These procedures involve the verification, validation and evaluation of the individual NECTAR modules, namely RICE, SIRKIT, ATMOS, POPDOS and FOODWEB. The verification and validation of each module are considered in turn, while the final part of the report provides an overall evaluation of the code. The QA procedures are designed to provide reassurance that the NECTAR code is free from systematic errors and will perform calculations within the range of uncertainty and limitations claimed in its documentation. Following consideration of a draft version of this report by the Off-site Dose Methodology Working Group, the ATMOS, POPDOS and FOODWEB modules of NECTAR have been endorsed for use by the Board in reactor design and safety studies. (author)
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Source
Feb 1986; 62 p; ODMWG/P--85-18(REV. 2)
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Report
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Nakhle, Michel; Roux, Pierre.
CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)
CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)
AbstractAbstract
[en] NEPTUNIX 2 is a package which carries out the simulation of complex processes described by numerous non linear algebro-differential equations. Main features are: non linear or time dependent parameters, implicit form, stiff systems, dynamic change of equations leading to discontinuities on some variables. Thus the mathematical model is built with an equation set F(x,dx/dt,t,l), where t is the independent variable, dx/dt the derivative of x and l an ''algebrized'' logical variable. The NEPTUNIX 2 package is divided into two successive major steps: a non numerical step and a numerical step. The numerical step, using results from a picture of the model translated in FORTRAN language, in a form fitted for the executive computer, carries out the simulations; in this way, NEPTUNIX 2 numerical step is portable. On the opposite, the non numerical step must be executed on a series 370 IBM computer or on a compatible computer. The present manual contains the use directives of non numerical step, i.e. essentially the use of mathematical model description language
[fr]
NEPTUNIX 2 est un logiciel permettant d'effectuer la simulation de processus complexes decrits par de nombreuses equations algebro-differentielles pouvant posseder les caracteristiques suivantes: parametres non lineaires ou fonctions de la variable independante, ecriture implicite, constantes de temps dispersees (systemes ''raides''), changement dynamique d'equations conduisant a des discontinuites sur certaines variables. Le modele mathematique est donc constitue d'un ensemble d'equations F(x,dx/dt,t,l)=0, ou t est la variable independante, dx/dt est la derivee par rapport a t de la variable x et l une variable logique ''algebrisee''. NEPTUNIX 2 comprend deux phases successives: une phase non numerique et une phase numerique. La phase numerique effectue les simulations et exploite les resultats a partir d'une image du modele en langage FORTRAN, qui est adaptee a l'ordinateur d'execution; la phase numerique de NEPTUNIX 2 est donc transportable. Par contre, la phase non numerique doit s'executer sur un ordinateur IBM de la serie 370 ou un ordinateur compatible. Le present manuel contient le mode d'emploi de la phase non numerique, c'est a dire essentiellement l'usage du langage de description d'un modele mathematiqueOriginal Title
NEPTUNIX 2 - Phase non numerique - Manuel de l'utilisateur
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Oct 1981; 69 p
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Report
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AbstractAbstract
[en] A comparison between the kerma factors produced by NJOY 87.1 and those given in the MACKLIB-IV collection has been carried out. The results of the match are discussed
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Nuclear Energy Agency, 75 - Paris (France); 273 p; 1989; p. 126-139; Seminar on NJOY and THEMIS; SACLAY (France); 20-21 Jun 1989
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Report
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Conference
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Allaucca P, J.J.; Picon C, C.; Zaharia B, M.
Proceedings of the 1st Ibero-Latin American and Caribbean Congress on Medical Physics. Mexico 98
Proceedings of the 1st Ibero-Latin American and Caribbean Congress on Medical Physics. Mexico 98
AbstractAbstract
[en] It has been designed a hardware and software system for a radiotherapy Department. It runs under an Operative system platform Novell Network sharing the existing resources and of the server, it is centralized, multi-user and of greater safety. It resolves a variety of problems and calculation necessities, patient steps and administration, it is very fast and versatile, it contains a set of menus and options which may be selected with mouse, direction arrows or abbreviated keys. (Author)
Original Title
Software multiusuario de calculo radioterapeutico usando una red de computo
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Source
Gaona, E. (ed.) (Universidad Autonoma Metropolitana, Mexico D.F. (Mexico)); Huitron, B.G. (ed.) (Universidad Autonoma del Estado de Mexico, Toluca (Mexico)); Asociacion Latinoamericana de Fisica Medica (ALFIM) (Mexico); Sociedad Espanola de Fisica Medica (SEFM) (Spain); Secretaria de Salud de Mexico (Mexico); Instituto Nacional de Cancerologia (Mexico); Organismo Internacional de Energia Atomica (IAEA), Vienna (Austria); Organizacion Panamericana de la Salud (Mexico); Organizacion Internacional de Fisica Medica (Mexico); Universidad Autonoma Metropolitana (Mexico); Instituto Nacional de Investigaciones Nucleares (Mexico); Universidad Autonoma del Estado de Mexico (Mexico); Universidad Nacional Autonoma de Mexico (Mexico); Direccion de Riesgos Radiologicos (Mexico); Comision Nacional de Seguridad Nuclear y Salvaguardias (Mexico); Sociedad Mexicana de Radioterapeutas, A.C. (Mexico); Centro de Investigacion y Estudios Avanzados, IPN (Mexico); Centro Universitario contra el Cancer, UANL (Mexico); Asociacion Mexicana de Fisica Medica, A.C. (Mexico); Sociedad de Fisica Medica de Nuevo Leon, A.C. (Mexico); Sociedades Nacionales de Fisica Medica de Latinoamerica y el Caribe (Mexico). Funding organisation: Med-Tec (United States); Nucletron (Mexico); Grupo Venta Internacional, S.A. de C.V. (Leibinger) (Mexico); PTW Freiburg (Germany); Scanditronix Medical AB (Mexico); Kodak (United States); Electronica y Medicina, S.A. (Mexico); Siemens (Germany); Electronica 2000, S.A. de C.V. (Mexico); 283 p; ISBN 968-835-419-8; 
; 1998; p. 267-269; 1. Ibero-Latin American and Caribbean Congress on Medical Physics; 1. Congreso Iberolatinoamericano y del Caribe de Fisica Medica; Mexico, D.F. (Mexico); 22-25 Nov 1998
; 1998; p. 267-269; 1. Ibero-Latin American and Caribbean Congress on Medical Physics; 1. Congreso Iberolatinoamericano y del Caribe de Fisica Medica; Mexico, D.F. (Mexico); 22-25 Nov 1998
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Miscellaneous
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Edel, M.; Kryiakopulos, J.; Lebrun, P.; Kallenbach, J.; Ravoor, S.; Iourcha, K.
Proceedings of the conference on computing in high energy physics '94
Proceedings of the conference on computing in high energy physics '94
AbstractAbstract
[en] The Fermilab open-quotes Nirvanaclose quotes project has produced a number of tools for data analysis in High Energy Physics. The authors goal has been to produce software which takes maximum advantage of the workstation graphical user interface. Histo-Scope and NPlot enable users to browse data from running programs and HBOOK, Histo-Scope, and columnar text files. They also provide highly interactive two and three dimensional plots which can be rotated, scaled and adjusted directly with the workstation mouse. The newest program, NFit, a GUI version of the MINUIT fitting program, will be ready in a few months. In addition, NEdit, the programmer's text editor, was released as public domain in December. The authors discuss the basics of these software products, as well as improvements in the newest versions of Histo-Scope, NPlot, and NEdit
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Loken, S.C. (ed.); Lawrence Berkeley Lab., CA (United States); 532 p; 1994; p. 348-350; Meeting on computing in high-energy physics; San Francisco, CA (United States); 21-27 Apr 1994; Also available from OSTI as DE95004442; NTIS; US Govt. Printing Office Dep
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AbstractAbstract
No abstract available
Original Title
Echangeurs de chaleur a circulations orthogonales a tubes lisses. Calcul des temperatures de sortie des fluides
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Journal Article
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Bull. Dir. Etud. Rech., Ser. A; (no.1); p. 45-66
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