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Sample records for testing calculo numerico

  1. Numerical Calculation of Transport Based on the Drift-Kinetic Equation for Plasmas in General Toroidal Magnetic Geometry: Convergence and Testing; Calculo Numerico del Transporte mediante la Ecuacion Cinetica de Deriva para Plasmas en Geometria Magnetica Toroidal: Convergencia y Comprobaciones

    Energy Technology Data Exchange (ETDEWEB)

    Reynolds, J. M.; Lopez-Bruna, D.

    2009-12-11

    This report is the third of a series [Informes Tecnicos Ciemat 1165 y 1172] devoted to the development of a new numerical code to solve the guiding center equation for electrons and ions in toroidal plasmas. Two calculation meshes corresponding to axisymmetric tokamaks are now prepared and the kinetic equation is expanded so the standard terms of neoclassical theory --fi rst order terms in the Larmor radius expansion-- can be identified, restricting the calculations correspondingly. Using model density and temperature profiles for the plasma, several convergence test are performed depending on the calculation meshes and the expansions of the distribution function; then the results are compared with the theory [Hinton and Hazeltine, Rev. Mod. Phys. (1976)]. (Author) 18 refs.

  2. Measurement and calculation of dynamic coefficients in hydrodynamic bearings of gas films; Medicion y calculo de coeficientes dinamicos en cojinetes hidrodinamicos de peliculas de gas

    Energy Technology Data Exchange (ETDEWEB)

    Ruiz, Rafael O.; Di Liscia, Marcelo H.; Diaz, Sergio E. [Universidad Simon Bolivar, Sartendejas, Baruta (Venezuela)

    2007-11-15

    dynamic coefficients. [Spanish] La identificacion de los coeficientes dinamicos en cojinetes de aire es fundamental para un adecuado analisis rotodinamico. El presente trabajo muestra el desarrollo de un algoritmo que permite la obtencion directa de los coeficientes dinamicos en cojinetes hidrodinamicos de aire tanto de forma numerica como experimental. El banco de pruebas utilizado consta de dos cojinetes magneticos, los cuales soportan al rotor en sus extremos y a su vez funcionan como actuadores permitiendo inducir orbitas controladas en el rotor. El cojinete de prueba se encuentra ubicado entre los cojinetes magneticos. Las fuerzas dinamicas generadas en el cojinete de aire se registran a partir de tres celdas de carga. El algoritmo fue desarrollado en un codigo comercial de programacion grafica, a traves del cual se pueden colectar, controlar y procesar las senales. El comportamiento no lineal de este tipo de cojinetes dificulta el calculo de los coeficientes dinamicos, por esta razon el procesamiento de las senales en espacio frecuencial facilita de cierta manera su manejo. Por otra parte, el modelo numerico se comparo con los resultados experimentales obteniendo aproximaciones aceptables tanto en magnitud como en comportamiento. El calculo de los coeficientes dinamicos numericos se realizo resolviendo la ecuacion diferencial de Reynolds para un fluido compresible en el espesor de la pelicula de gas, tomando en consideracion el flujo masico del fluido que se introduce, asi como la perdida de presion que sufre el mismo al pasar a traves de los orificios de alimentacion. Los metodos numericos utilizados incluyen la resolucion de la ecuacion diferencial de Reynolds por diferencias finitas, el calculo del perfil de presiones realizando iteraciones sucesivas y el calculo de las fuerzas hidrodinamicas a traves de una integracion numerica de Simpson. Los coeficientes dinamicos numericos fueron hallados aplicando una tecnica de minimos cuadrados a las fuerzas hidrodinamicas

  3. La Vision que tienen del Calculo los Diplomados en Empresariales: Un Test Final

    Directory of Open Access Journals (Sweden)

    Seijas Macías, J. Antonio

    2008-01-01

    Full Text Available Como docentes de Matemáticas Aplicadas a la Economía y Empresa somos conscientes de las a veces difíciles relaciones entre ambas disciplinas. ¿En qué sentido se diluyen las matemáticas en la economía? ¿Qué queda de ellas en los alumnos de empresa al acabar la carrera? ¿El lenguaje matemático sigue teniendo significado para ellos? Este trabajo pretende responder a estas preguntas tomando como referencia un test pasado a los alumnos del último año de la diplomatura de Ciencias Empresariales de la Universidad de A Coruña.

  4. Estudio numerico y experimental del proceso de soldeo MIG sobre la aleacion 6063--T5 utilizando el metodo de Taguchi

    Science.gov (United States)

    Meseguer Valdenebro, Jose Luis

    improvement on mechanical properties in aluminum metal joint. Los procesos de soldadura por arco electrico representan unas de las tecnicas mas utilizadas en los procesos de fabricacion de componentes mecanicos en la industria moderna. Los procesos de soldeo por arco se han adaptado a las necesidades actuales, haciendose un modo de fabricacion flexible y versatil. Los resultados obtenidos numericamente en el proceso de soldadura son validados experimentalmente. Los principales metodos numericos mas empleados en la actualidad son tres, metodo por diferencias finitas, metodos por elementos finitos y metodo por volumenes finitos. El metodo numerico mas empleado para el modelado de uniones soldadas, es el metodo por elementos finitos, debido a que presenta una buena adaptacion a las condiciones geometricas y de contorno ademas de que existe una diversidad de programas comerciales que utilizan el metodo por elementos finitos como base de calculo. Este trabajo de investigacion presenta un estudio experimental de una union soldada mediante el proceso MIG de la aleacion de aluminio 6063-T5. El metodo numerico se valida experimentalmente aplicando el metodo de los elementos finitos con el programa de calculo ANSYS. Los resultados experimentales obtenidos son: las curvas de enfriamiento, el tiempo critico de enfriamiento t4/3, geometria del cordon, microdurezas obtenidas en la union soldada, zona afectada termicamente y metal base, dilucion del proceso, areas criticas intersecadas entre las curvas de enfriamiento y la curva TTP. Los resultados numericos son: las curvas del ciclo termico, que representan tanto el calentamiento hasta alcanzar la temperatura maxima y un posterior enfriamiento. Se calculan el tiempo critico de enfriamiento t4/3, el rendimiento termico y se representa la geometria del cordon obtenida experimentalmente. La zona afectada termicamente se obtiene diferenciando las zonas que se encuentran a diferentes temperaturas, las areas criticas intersecadas entre las

  5. Numerical Calculation of Transport Based on the Drift-Kinetic Equation for Plasmas in General Toroidal Magnetic Geometry: Numerical Methods; Calculo Numerico de Transporte mediante la Ecuacion Cinetica de Deriva para Plasmas en Geometria Magnetica Toroidal: Metodos Numericos

    Energy Technology Data Exchange (ETDEWEB)

    Reynolds, J. M.; Lopez-Bruna, D.

    2009-10-12

    In this report we continue with the description of a newly developed numerical method to solve the drift kinetic equation for ions and electrons in toroidal plasmas. Several numerical aspects, already outlined in a previous report [Informes Tecnicos Ciemat 1165, mayo 2009], will be treated now in more detail. Aside from discussing the method in the context of other existing codes, various aspects will be now explained from the viewpoint of numerical methods: the way to solve convection equations, the adopted boundary conditions, the real-space meshing procedures along with a new software developed to build them, and some additional questions related with the parallelization and the numerical integration. (Author) 16 refs.

  6. HADES. A computer code for fast neutron cross section from the Optical Model; HADES. Un programa numerico para el calculo de seccciones eficaces neutronicas mediante el modelo optico

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    Guasp, J.; Navarro, C.

    1973-07-01

    A FORTRAN V computer code for UNIVAC 1108/6 using a local Optical Model with spin-orbit interaction is described. The code calculates fast neutron cross sections, angular distribution, and Legendre moments for heavy and intermediate spherical nuclei. It allows for the possibility of automatic variation of potential parameters for experimental data fitting. (Author) 55 refs.

  7. Numerical-experimental analysis of a rin AISI{sub 7}Mg Alloy; Analisis numerico experimental de un rin de aleacion AISi{sub 7}Mg

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    Sauceda Mesa, Israel; Mata Lucero, Omar; Tirado Delgado, Luis; Ocampo Diaz, Juan de Dios [Universidad Autonoma de Baja California, Mexicali, Baja California (Mexico)

    2005-10-15

    The present work shows the results obtained from an investigation mode on the behaviour of a rin of alloy AISi{sub 7}Mg, which is used in compact Volkswagen's cars. Due to two kind of analysis were realized, firstly an experimental and numerical analysis was done, using a special machine for test the flexionante torque and material fatigue, besides was used an equipment of laser to scanner zone with strength concentrations and the maximum displacement amplitudes. The second analysis was done with the finite element technique, using the software ANSYS and CATIA. The difference between life fatigue cycles obtained from the two analyses was 0.6%. While the time optimize by MEF, was of 85% less than experimental analysis. [Spanish] En el presente trabajo se hicieron investigaciones del comportamiento de un rin de aleacion AISi{sub 7}Mg, el cual es usado en automoviles compactos de volkswagen (VW). Para esto, se realizo analisis experimental y numerico. En el primero se utilizo una maquina para prueba de fatiga de momento flexionante, un equipo de medicion de laser escaner donde se detectaron las zonas de concentraciones de esfuerzos y la maxima amplitud de desplazamiento en el rin. Mientras que en el segundo se obtuvieron los esfuerzos que ocasionaban la fatiga por el elemento finito, utilizando los paquetes de computo Ansys y Catia. La diferencia de los ciclos de vida de fatiga obtenidos entre ambos analisis fue del 0.6%. Mientras que el tiempo que se optimizo por el MEF, fue de un 85% menos que el analisis experimental.

  8. Torque calculation in the induction motor with the finite element method; Calculo del par en el motor de induccion con el metodo del elemento finito

    Energy Technology Data Exchange (ETDEWEB)

    Castillo Diaz, Ramon

    2002-06-15

    In this work the method of the finite element is applied to the bi-dimensional analysis of the induction motor in operation in steady state, excited by sine sources of laminar currents and sine sources of voltage. The analysis is focused mainly in the calculation of the electromagnetic torque. The topics of electromagnetic theory are covered and in an idealized model of the induction motor, analytically and numerically with the method of the finite element, in the variant method of Galerkin, the vectorial potential and the torque are calculated. The results obtained with the analytical and numerical methods are compared. Three formulations are developed to calculate the torque with the method of the finite element, using triangular elements of first order, based in the equation of force of Lorentz, the Maxwell tensor and the principle of the virtual work. Finally, a motor of induction of real characteristics is simulated, assuming it is connected to a three-phase voltage source. In this motor it is analyzed the convergence and the evolution in the results obtained of the torque with different discretions, and the torque-velocity performance curve is calculated. [Spanish] En este trabajo se aplica el metodo del elemento finito al analisis bidimensional del motor de induccion en operacion en estado estable, excitado por fuentes de corriente laminar senoidales y fuentes de voltaje senoidales. El analisis se enfoca principalmente en el calculo del par electromagnetico. Se tratan los topicos de teoria electromagnetica involucrados y en un modelo idealizado del motor de induccion, se calculan analitica y numericamente con el metodo del elemento finito, en la variante metodo de Galerkin, el potencial vectorial y el par. Se comparan resultados obtenidos con los metodos analiticos y numericos. Se desarrollan tres formulaciones para calcular el par con el metodo del elemento finito, utilizando elementos triangulares de primer orden, basadas en la ecuacion de fuerza de

  9. CURVAS HIDROSTATICAS DEL F/V JUAN SANTA MARIA: UN BUQUE PELANGRERO DE PROFUNDIDAD

    OpenAIRE

    Murillo B, Luis Manuel

    2011-01-01

    Se intoducen procedimientos numericos para el calculo de los centros de boyancia longitudinal y transversal, alturas metacentricas, curva de las toneladas por centimetroo de inmersion y tonelaje. Los calculos se hacen en funcion del calado usando hojas de calculo modernas con ligamenes virtuales de una hoja a otra.

  10. Numerical Calculation of Transport Based on the Drift Kinetic Equation for plasmas in General Toroidal Magnetic Geometry; Calculo Numerico del Transporte mediante la Ecuacion Cinetica de Deriva para Plasmas en Geometria Magnetica Toroidal: Preliminares

    Energy Technology Data Exchange (ETDEWEB)

    Reynolds, J. M.; Lopez-Bruna, D.

    2009-12-11

    This report is the first of a series dedicated to the numerical calculation of the evolution of fusion plasmas in general toroidal geometry, including TJ-II plasmas. A kinetic treatment has been chosen: the evolution equation of the distribution function of one or several plasma species is solved in guiding center coordinates. The distribution function is written as a Maxwellian one modulated by polynomial series in the kinetic coordinates with no other approximations than those of the guiding center itself and the computation capabilities. The code allows also for the inclusion of the three-dimensional electrostatic potential in a self-consistent manner, but the initial objective has been set to solving only the neoclassical transport. A high order conservative method (Spectral Difference Method) has been chosen in order to discretized the equation for its numerical solution. In this first report, in addition to justifying the work, the evolution equation and its approximations are described, as well as the baseline of the numerical procedures. (Author) 28 refs.

  11. Aquelarre. A computer code for fast neutron cross sections from the statistical model; AQUELARRE. Un programa numerico para el calculo de secciones eficaces neutronicas mediante el modelo de nucleo compuesto

    Energy Technology Data Exchange (ETDEWEB)

    Guasp, J.

    1974-07-01

    A Fortran V computer code for Univac 1108/6 using the partial statistical (or compound nucleus) model is described. The code calculates fast neutron cross sections for the (n, n'), (n, p), (n, d) and (n, {alpha}) reactions and the angular distributions and Legendre moments for the (n, n) and (n, n') processes in heavy and intermediate spherical nuclei. A local Optical Model with spin-orbit interaction for each level is employed, allowing for the width fluctuation and Moldauer corrections, as well as the inclusion of discrete and continuous levels. (Author) 67 refs.

  12. T.I.G. Welding of stainless steel. Numerical modelling for temperatures calculation in the Haz; Soldadura T.I.G. de acero inoxidable. Modelo numerico para el calculo de temperaturas en la ZAT

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    Martinez-Conesa, E. J.; Estrems-Amestoy, M.; Miguel-Eguia, V.; Garrido-Hernandez, A.; Guillen-Martinez, J. A.

    2010-07-01

    In this work, a numerical method for calculating the temperature field into the heat affected zone for butt welded joints is presented. The method has been developed for sheet welding and takes into account a bidimensional heat flow. It has built a computer program by MS-Excel books and Visual Basic for Applications (VBA). The model has been applied to the TIG process of AISI 304 stainless steel 2mm thickness sheet. The welding process has been considered without input materials. The numerical method may be used to help the designers to predict the temperature distribution in welded joints. (Author) 12 refs.

  13. Calculation of the temperature distribution and thermal stresses in a gas turbine nozzle cooled by air film; Calculo de la distribucion de temperaturas y esfuerzos termicos en una tobera de turbina de gas enfriada por pelicula de aire

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez R, Alejandro; Garcia I, Rafael; Mazur C, Zdislaw [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2004-07-01

    The analysis begins with the generation of a computational geometric model of the gas turbine nozzle using reverse engineering techniques. For the obtaining of the original geometry of the blade, a measurement machine by coordinates and computerized numerical control was used. Next, the computational model is converted into a three-dimensional mesh. In advance, a study of boundary conditions was made of the nozzle material as well as of the turbine operating conditions during non-operating cycles, start-ups and shut-downs. On the other hand, with the boundary conditions imposed to the model, the distributions of the temperature and pressures on the aerofoil profile of the nozzle blade were calculated. These results had to be manipulated to be exported to a finite element software (ANSYS); at this point, another nozzle model was elaborated to be able to import the temperature distribution. With the temperatures correctly imported, the simulations for the calculation of the thermal stresses were made in the nozzle. [Spanish] El analisis inicia con la generacion de un modelo geometrico computacional de la tobera de la turbina de gas utilizando tecnicas de ingenieria inversa. Para la obtencion de la geometria original del alabe, se utilizo una maquina de medicion por coordenadas y control numerico computarizado. A continuacion, el modelo computacional es convertido en una malla tridimensional. Con antelacion, se realizo un estudio de las condiciones de frontera, tanto del material de la tobera como de las condiciones de operacion de la turbina, durante ciclos de paro, arranque y disparo. Por otra parte, con las condiciones de frontera impuestas al modelo, se calcularon las distribuciones de las temperaturas y presiones sobre el perfil aerodinamico de la paleta de la tobera. Estos resultados tuvieron que ser manipulados para ser exportados a un software de elemento finito (ANSYS); en este punto, se elaboro otro modelo de la tobera para poder importar la distribucion de

  14. Experimental numerical study utilizing CFD in a stratified gasifier operating with biomass; Estudio numerico experimental de un gasificador estratificado que opera con biomasa, utilizando CFD

    Energy Technology Data Exchange (ETDEWEB)

    Rogel Ramirez, Alejandro

    2007-07-01

    The central idea behind this work is the developing of a numeric-experimental model, useful to optimize the biomass stratified gasifier design. Firstly, model validation will be carried up by comparison with reference experimental data available. This study describes a 1-D + 2-D numerical model used to simulate the gasification of pine wood pellets in a stratified downdraft gasifier whereby Eulerian conservation equations are solved for particle and gas phase components, velocities and specific enthalpies. The model takes into account the biomass particle process such as heating up, drying, primary pyrolysis of biomass, secondary pyrolysis of tar, homogeneous reactions and heterogeneous combustion/gasification reactions, and particle size change. This CFD model can be used to predict temperature profiles, gas composition, producer gas lower heating value, and carbon conversion efficiency, and the reactor performance when operating parameters and feed properties are changed. The standard {kappa}-{epsilon} and RNG {kappa}-{epsilon} models were used to simulate the turbulent flow conditions. [Spanish] La idea central del presente trabajo es el desarrollo de un modelo numerico- experimental, para optimizar el diseno de gasificadores estratificados de biomasa. Primeramente, el modelo sera validado utilizando datos experimentales disponibles en la literatura. Este estudio describe un modelo numerico 1-D+2-D, utilizado para simular la gasificacion de 'pelets' de madera de pino en un gasificador estratificado de flujos paralelos, en el que se resuelven ecuaciones de conservacion Eulerianas para los componentes de la fase gaseosa, la fase solida, velocidades y entalpias especificas. El modelo considera procesos como: calentamiento, secado de la biomasa, pirolisis primaria de la madera, pirolisis secundaria de los alquitranes, reacciones homogeneas, reacciones heterogeneas de combustion/gasificacion y cambio en el tamano de la particula. Este modelo CFD puede ser

  15. Calculo de la Barra Antivuelco de un Vehículo Automotor.

    Directory of Open Access Journals (Sweden)

    Javier García de la Figal

    2005-09-01

    Full Text Available El presente trabajo trata acerca del calculo de la barra antivuelco del FORD modelo A, desarrollado por elInstituto de Desarrollo Automotriz, IDA, teniendo en cuenta las fuerzas que la cinta de seguridad de losautomovilistas, ejerce sobre la citada barra, ante un choque que provoca una aceleración de 20 g en elvehículo. El calculo se hace mediante la confección de un modelo de elementos finitos de la barra y lacarrocería, para lo cual se hace uso de un programa profesional de elementos finitos.Se determinan los esfuerzos máximos y los equivalentes, tanto de las partes metálicas del sistema, queson fundamentalmente tubos de acero, como de las partes de material compuesto (poliéster con fibras devidrio E, propios de la carrocería del vehículo. Todo lo cual permite hacer los cálculos y comprobacionesa resistencia de todo el conjunto. Así mismo, se determinan los desplazamientos en todos los sentidos detodos las partes del sistema, para poder realizar los correspondientes análisis de rigidez.El objetivo final de todos los análisis es determinar lo adecuado o no de las soluciones y materialespropuestos para el sistema, bajo la acción de la citada carga de impacto.

  16. The test of intrinsic uniformity is one of the basic tests to check the status of the detectors of gamma cameras, and as such is contained in RD 1 841/1997 Quality Control in Nuclear Medicine; Protocolo NEMA para el calculo de la uniformidad intrinsica en gamma-camaras: aplicacion y comparacion con el software del fabricante

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez Soto, X. L.; Gonzalez Ruiz, C.; Lopez-Boto, M. A.; Polo Cezon, R.

    2015-07-01

    Spanish Protocol Quality Control Instrumentation in Nuclear Medicine provides guidelines for conducting this test, similar to those established in the NEMA protocol NEMA Protocol for the calculation of the uniformity intrinsic in GAMMA cameras: application and comparison with the SQFTWARE of the manufacturer. it is advisable to conduct a study to ensure that the results for the test of intrinsic uniformity of the software provided by the equipment manufacturer are equivalent to those obtained by applying the protocol recommended by the SEFM before using this software for performing quality control. (Author)

  17. Numerical analysis of flow in a solar heater of air packing with shavings; Analisis numerico del flujo en un calentador solar de aire empacado con viruta

    Energy Technology Data Exchange (ETDEWEB)

    Lopez C, Raymundo; Morales G, Juan R; Diaz C, Alen; Lara V, Araceli; Lizardi R, Arturo [Universidad Autonoma Metropolitana-Azcapotzalco, Mexico, D.F. (Mexico); Vaca M, Mabel [UNAM, Mexico, D.F. (Mexico)

    2000-07-01

    The temperature distribution of air through a solar heater is determined by means of the equations of heat, mass, momentum, and energy conservation. The solution is obtained by means of the numeric model of finite volume, using the CFC2000 software, V. 3.3. The studied flow is laminar. The temperature distribution resulted quite similar for different Reynolds numbers; the greatest difference was less than 4 Celsius degrees, for similar ranges of solar radiation. The influence of the separation that exists between the clear cover and the free surface of the material used as thermal summit (b) was analyzed. A difference up to 41 Celsius degrees for a Reynolds number of 1000 and values of b between 3 and 7 cm. For a Reynolds of 2000, the difference was of 29 Celsius degrees, in the same range of b. [Spanish] Se determinan la distribucion de temperaturas del aire, a lo largo de un calentador solar, aplicando las ecuaciones de conservacion de masa, cantidad de movimiento y energia. La solucion se obtiene con el modelo numerico de volumen finito y la utilizacion del programa de computadora llamado CFC2000 version 3.3. El flujo estudiado es del tipo laminar. La distribucion de temperaturas resulto ser muy semejante para diferentes valores del numero de Reynolds, la diferencia mayor resulto menor a 4 grados Celsius, para rangos similares de radiacion solar. Se analizo la influencia de la separacion que existe entre la cubierta transparente y la superficie libre del material que sirve como almacen termico (b). Se encontro una diferencia maxima de hasta 41 grados celsius para un numero de Reynolds de 1000 y los valores de b entre 3 y 7 cm. Cuando el Reynolds fue de 2000 la diferencia fue de 29 grados Celsius, en el mismo rango de b.

  18. Algorithm for the calculation of a steam generator efficiency; Algoritmo para el calculo de la eficiencia de un generador de vapor

    Energy Technology Data Exchange (ETDEWEB)

    Franco, David; Ambriz, Juan Jose; Romero Paredes, Hernando [Universidad Autonoma Metropolitana-Iztapalapa, Mexico, D. F. (Mexico)

    1994-12-31

    The efficiency calculation of steam generators is not always simple. The purpose of this paper is to propose an algorithm for the calculation of steam generators efficiency, easy to understand and carry out, in the form of a series of steps to be followed. It takes as starting point that the person in charge of applying these calculations has knowledge of the combustion processes and thermodynamic principles that rule such processes. [Espanol] El calculo de la eficiencia de los generadores de vapor no siempre es sencillo, el presente trabajo tiene como objetivo el de proponer un algoritmo de calculo de eficiencia de generadores de vapor, el cual sea facil de entender y de llevar a cabo, en forma de una serie de pasos a seguir. Se toma como punto de partida, que la persona encargada de aplicar estos calculos tenga el conocimiento de los procesos de combustion y principios termodinamicos que rigen tales procesos.

  19. Dosimetry in intravascular brachytherapy; Calculos dosimetricos em braquiterapia intravascular

    Energy Technology Data Exchange (ETDEWEB)

    Campos, Laelia Pumilla Botelho

    2000-03-01

    Among the cardiovascular diseases responsible for deaths in the adult population in almost all countries of the world, the most common is acute myocardial infarction, which generally occurs because of the occlusion of one or more coronary arteries. Several diagnostic techniques and therapies are being tested for the treatment of coronary artery disease. Balloon angioplasty has been a popular treatment which is less invasive than traditional surgeries involving revascularization of the myocardium, thus promising a better quality of life for patients. Unfortunately, the rate of restenosis (re-closing of the vessel) after balloon angioplasty is high (approximately 30-50% within the first year after treatment).Recently, the idea of delivering high radiation doses to coronary arteries to avoid or delay restenosis has been suggested. Known as intravascular brachytherapy, the technique has been used with several radiation sources, and researchers have obtained success in decreasing the rate of restenosis in some patient populations. In order to study the radiation dosimetry in the patient and radiological protection for the attending staff for this therapy, radiation dose distributions for monoenergetic electrons and photons (at nine discrete energies) were calculated for blood vessels of diameter 0.15, o,30 and 0.45 cm with balloon and wire sources using the radiation transport code MCNP4B. Specific calculations were carried out for several candidate radionuclides as well. Two s tent sources (metallic prosthesis that put inside of patient's artery through angioplasty) employing {sup 32} P are also simulated. Advantages and disadvantages of the various radionuclides and source geometries are discussed. The dosimetry developed here will aid in the realization of the benefits obtained in patients for this promising new technology. (author)

  20. Calculation of electromagnetic fields in electric machines by means of the finite element. Computational aspects; Calculo de campos electromagneticos en maquinas electricas mediante elemento finito. Aspectos computacionales

    Energy Technology Data Exchange (ETDEWEB)

    Rosales, Mario; De la Torre, Octavio [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1989-12-31

    In this article are described the computational characteristics of the Package CALIIE 2D of the Instituto de Investigaciones Electricas (IIE), for the calculation of bi-dimensional electromagnetic fields. The computational implementation of the package is based in the electromagnetic and numerical statements formerly published in this series. [Espanol] En este articulo se describen las caracteristicas computacionales del paquete CALIIE 2D del Instituto de Investigaciones Electricas (IIE), para calcular campos electromagneticos bidimensionales. La implantacion computacional del paquete se basa en los planteamientos electromagneticos y numericos antes publicados en esta serie.

  1. Development of applications in Internet for the calculation of solar control devices; Desarrollo de una aplicacion en Internet para el calculo de dispositivos de control solar

    Energy Technology Data Exchange (ETDEWEB)

    Perez V, Jesus B; Robles G, Saul; Villa M, Hector A; Cabanillas L, Rafael E [Universidad de Sonora, Hermosillo, Sonora (Mexico)

    2000-07-01

    In this work the development of an interactive software, visible over the World Wide Web, is presented to support the basic calculation required to control the solar gain inside buildings and houses. The site has two main parts: one part describes in a very required parameters to design devices for the control of the illumination inside the buildings, like overhangs and wingwalls for shading. The other part has the routines and procedures to calculate the sun position for any date and position over the earth, and the horizontal and vertical protection angles. The part to implement the calculations has been developed as a Java applet which can run on any platform and let the users, in an interactive way, to get the results. This software makes possible that any Internet user can run the application from his/her own computer without having to compile of use sophisticated procedures as it happens with traditional languages. With this web site it is intended to cover the necessity of having simple and reliable means for architects and civil engineers to support the use of solar energy and the saving of energy in bioclimatic design of buildings. [Spanish] En este trabajo se presenta el desarrollo de un sitio interactivo visible en el World Wide Web (WWW) que pretende servir de apoyo para los calculos basicos de control de asoleamiento en viviendas y edificios. El sitio esta conformado por dos partes principales: una parte cubre el aspecto informativo, donde en forma sencilla y clara, se explican los conceptos y parametros necesarios para disenar los dispositivos de control, alerones y parteluces. La otra parte contiene los procedimientos y las rutinas de calculo para la determinacion de la posicion solar para cualquier fecha del ano desde cualquier punto sobre la tierra, asi como los angulos de sombreado vertical y horizontal. Para la realizacion de los calculos se ha construido un applet de Java, el cual puede ejecutarse desde cualquier plataforma de computacion y

  2. Data acquisition system and calculation for the evaluation of polluting emissions in stacks; Sistema de adquisicion de datos y calculo para la evaluacion de emisiones contaminantes en chimeneas

    Energy Technology Data Exchange (ETDEWEB)

    Leon Enriquez, Javier

    1999-06-01

    The present thesis work, was developed in Visual C++5, to replace the present procedure of calculation in Excel and to avoid the manual processing of the data obtained during the evaluation of polluting from stacks, with movable laboratories that make dilutions in the originating gaseous sample of the stack. Six projects in Visual C++5 were designed. The first five include the formulas and procedures of calculation to obtain the total particulate emission suspended originating of stationary sources (stacks), indicated in the Code of Federal Regulations (CFR) part 60, emitted by the Environmental Protection Agency of the United Sates (EPA). The last one, includes the calculations necessary to read archives generated by a card of data acquisition and to consider the factor of dilution of the gaseous sample. A standard business card for the data acquisition is used during the monitoring process of the variables that requires the sixth mentioned project previously. The results of the monitoring of variables and result of the calculations are stored in archives that conform a data base of the made work, which allows future, to compare the results of the measurements and calculations in different evaluations from a same user. The made work can be used by evaluators companies of polluting emissions in stacks that count on dilution equipment during the evaluation. [Spanish] El presente trabajo de tesis, fue desarrollado en visual C++5, para sustituir el procedimiento actual de calculo en Excel y evitar el procesamiento manual de los datos obtenidos durante la evaluacion de emisiones contaminantes en chimeneas, con laboratorios moviles que realizan diluciones en la muestra gaseosa proveniente de la chimenea. Se disenaron 6 proyectos en visual C++5. Los primeros cinco incluyen las formulas y procedimientos de calculo para obtener la emision de particulas suspendidas totales provenientes de fuentes fijas (chimeneas), indicadores en el Codigo de Regulaciones Federales (CFR

  3. Numerical study on the effect of non-condensable gases on the bi-phasic flow in geothermal wells; Estudio numerico del efecto de gases incondensables sobre el flujo bifasico en pozos geotermicos

    Energy Technology Data Exchange (ETDEWEB)

    Santoyo Gutierrez, Edgar; Garcia Gutierrez, Alfonso; Santoyo Gutierrez, Socrates; Morales Rosas, Jose Manuel [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1993-09-01

    The objective of this paper is to describe a numerical study to determine the flow characteristics that predominate in geothermal wells and that produces a significant amount of non-condensable gases. It is known that these gases affect the thermodynamic conditions that dominate the fluid transport in the well or inclusively within the proper producing reservoir, therefore, it is extremely important to evaluate this effect. For this purpose the numerical model Geopozo V2.0 was developed. This model considers the carbon dioxide (CO{sub 2}) as the representative gas of the non-condensable gases present in the geothermal fluid. Due to this consideration, Geopozo V2.0 includes a methodology or the estimation of the thermodynamic and transport properties of geothermal fluids, considering these as a mix of two components: H{sub 2}O (vapor and liquid) and CO{sub 2}, under conditions of monophasic and biphasic flow. The application of Geopozo V2.0 for a typical case of flow in geothermal wells with high CO{sub 2} content revealed that the presence of this gas affects significantly the location of the flashing point inside the well and consequently, the amount of steam produced. This is of importance or the design and selection of the surface and generation equipment, aspect that to this date has been ignored (Suwana, 1991). [Espanol] El objetivo de este trabajo es describir un estudio numerico para determinar las caracteristicas del flujo que predominan en pozos geotermicos y que producen una cantidad significante de gases incondensables. Se tiene conocimiento de que estos gases afectan las condiciones termodinamicas que dominan el transporte de fluidos en el pozo o incluso dentro del mismo yacimiento geotermico productor, por lo que es de suma importancia evaluar dicho efecto. Para ello fue desarrollado el modelo numerico Geopozo V2.0. Este modelo considera al dioxido de carbono (CO{sub 2}) como el gas representativo de los incondensables presentes en el fluido geotermico

  4. Experimental and numeric studies of one electro-optical flexible pipe (umbilical); Estudos numericos e experimentais de um umbilical eletro-optico

    Energy Technology Data Exchange (ETDEWEB)

    Lepore, Paula Ferreira; Buelta Martinez, Miguel Angel [Sao Paulo Univ., SP (Brazil). Escola Politecnica

    2005-07-01

    This work had as objective to develop, to implant, to survey and to test an experimental and numerical model of structural, applicable analysis of umbilical structures. An ample study of the behavior of its constituent layers was carried through, in special of its nucleus and material constituents, when operating under different conditions of tensions and deformations. As support for this work, experimental tests for one type of electro-optic umbilical with typical transversal section had been carried through. This was made with the intention to optimize the developed numerical model. With this model of structural analysis, the project of umbilicals could highly improved, in terms of the total weight of the handle, which is one of the great problems for its use in great depths, with the maximum of efficiency and the minimum of losses, foreseeing and hindering operation imperfections that can come to occur due to extreme deformation or electric rupture of the layers, hoses or handles. (author)

  5. Experimental-numerical analysis of the fracture mechanic in polymeric materials; Analisis numerico-experimental de la mecanica de la fractura en materiales polimeros

    Energy Technology Data Exchange (ETDEWEB)

    Beltran Fernandez, Juan Alfonso; Hernandez Gomez, Luis H; Urriolagoitia Calderon, Guillermo; Villa y Rabasa, Gabriel; Rodriguez, Gustavo Ricardo; Mendoza Nunez, Maribel A [Instituto Politecnico Nacional, Zacatenco (Mexico)

    2004-10-15

    In this piece of work some fracture testings on specimens with a lateral fracture are made to analyze the resultant stress state around of the tip of the fracture and the way in which the strength of the material is modified to get the fracture toughness, to the load mode I. Also, it is explained the way in which mechanic properties were got in the Polymetil-Methacylate, (PMMA), such as: modulus of elasticity, maximum tensile stress, yielding stress and stress-unitary strain, stress-rate and strain-rate curves, throughout of the carry out of the tensile testing. With the objective to know the real mechanical behavior with the initial loading conditions established and different testing velocities. All and each one of the results are calculated experimental and numerically and validated throughout of the finite element method, using the software ANSYS 5.5.3. [Spanish] En este trabajo se efectuan pruebas de fractura en especimenes con una grieta lateral, para analizar el estado de esfuerzos resultantes alrededor de la punta de la grieta y la forma en que se afecta la resistencia del material a fin de obtener la tenacidad de fractura para el modo de carga I. Ademas, se explica la forma como se obtienen las propiedades mecanicas en el polimetil metacrilato (PMMA), tales como: modulo de elasticidad, esfuerzo normal maximo, esfuerzo de cadencia y las curvas esfuerzo-deformacion unitaria, esfuerzo-tiempo (stress-rate) y deformacion-tiempo (strain-rate), a traves de la realizacion de la prueba de tension. Se busca conocer el comportamiento mecanico real ante las condiciones de carga establecidas y a distintas velocidades de prueba. Todo y cada uno de los resultados se efectuan de manera experimental y son evaluados numericamente a traves del metodo del elemento finito, con el programa ANSYS 5.5.3.

  6. An experimental-numerical method for comparative analysis of joint prosthesis; Un metodo numerico-experimental para el analisis comparativo de protesis articulares

    Energy Technology Data Exchange (ETDEWEB)

    Claramunt, R.; Rincon, E.; Zubizarreta, V.; Ros, A.

    2001-07-01

    The difficulty that exists in the analysis of mechanical stresses in bones is high due to its complex mechanical and morphological characteristics. This complexity makes generalists modelling and conclusions derived from prototype tests very questionable. In this article a relatively simple comparative analysis systematic method that allow us to establish some behaviour differences in different kind of prosthesis is presented. The method, applicable in principle to any joint problem, is based on analysing perturbations produced in natural stress states of a bone after insertion of a joint prosthesis and combines numerical analysis using a 3-D finite element model and experimental studies based on photoelastic coating and electric extensometry. The experimental method is applied to compare two total hip prosthesis cement-free femoral stems of different philosophy. One anatomic of new generation, being of oblique setting over cancellous bone and the other madreporique of trochantero-diaphyseal support over cortical bone. (Author) 4 refs.

  7. Algorithm for the calculation of the energy balance for generation power plants; Algoritmo de calculo del balance de energia para centrales de generacion electrica

    Energy Technology Data Exchange (ETDEWEB)

    Arteaga Cardenas, Christian

    2001-07-01

    The design of an algorithm for the calculation of the energy balance that can be applied to the different electrical arrangements that exist in the generating power plants of Comision Federal de Electricidad is looked for; it must comply with the efficiency necessities, required precision and homogeneity; that observes all the normativeness that establishes the criteria and rules that this calculation must satisfy, with the primary target of generating computational applications that allow to use the algorithm in practical applications. The computational program Sistema Mensual de Operacion (SIMO) version 4.2 includes an algorithm that is used by almost all the generating power plants of Mexico, with very few problems derived from it, nevertheless these few ones are explained and solved in this document, as the simultaneous energy delivery, the Transmission Area by the delivery bus and the Distribution Area by means of the power plant self services bus. [Spanish] Se busca disenar un algoritmo para el calculo del balance de energia que pueda ser aplicado para los distintos arreglos electricos que existen en las centrales generadoras de Comision Federal de Electricidad; que cumpla con las necesidades de eficiencia, precision y homogeneidad requeridas; que observe toda la normatividad que establece los criterios y reglas que este calculo debe satisfacer, con el objetivo principal de generar aplicaciones computacionales que permitan utilizar el algoritmo en aplicaciones practicas. El programa computacional Sistema de Informe Mensual de Operacion (SIMO) version 4.2 comprende un algoritmo que es usado por casi todas las centrales generadoras de energia electrica de Mexico, con muy pocos problemas derivados de el, sin embargo estos pocos son explicados y solucionados en este documento, como la entrega simultanea de energia, el area de Transmision por el bus de entrega y el area de Distribucion por medio del bus de servicios propios de la central.

  8. The use of numerical methods in the solution of academic problems of classic mechanics; Empleo de metodos numericos en la solucion de problemas academicos de Mecanica Clasica

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez Gonzalez, A.; Rubayo Soneira, J.; Portuondo Campa, E.

    2001-07-01

    In this work the use of numerical methods in the solution of physics academic problems is discussed, particularly those on classical mechanics. Frequently the solution of academic problems is limited to finding a differential equation which is left unsolved for having no analytical solution. However, by means of numerical methods we can solve these equations and enrich the physical analysis of the problem. This approach also makes the academic process a little closer to modern physical research, where numerical methods have increasingly been used in almost every field. In the present paper we discuss a classical mechanics problem using these methods. We start from both Newton's and Lagrange's formulations and apply different numerical algorithms in the solution of the obtained equations. During last academic semester, recently concluded, we tested the ideas of this work with students of Nuclear Physics career of the Higher Institute of Nuclear Sciences and technologies, at Havana, cuba. The results were encouraging. (Author) 7 refs.

  9. Validation in life for dosimetric calculations in PET; Validacion de vida para calculos dosimetricos en PET

    Energy Technology Data Exchange (ETDEWEB)

    Ocampo ramos, J. C.; Petoussi-Henss, N.; Zankl, M.

    2015-07-01

    The LIFE program (VOXEL-PHANTOM-BASED SOFTWARE FOR INTERNAL DOSE ASSESSMENT) is developing new software for dose assessment in patients undergoing nuclear medicine examinations. This paper shows some of the validation and comparison tests that have been carried out for the case of the F-18 FDG. Unlike current programs (eg. OLINDA) using phantoms stylized size reference, the new developed software uses the pre calculated library Specific Absorption Fractions (SAF) of photons and electrons based on different anthropomorphic phantoms voxelized and the SAF new computational phantoms of the ICRP for photons, electrons, neutrons and alphas. In addition, the software uses the latest information from nuclear decay of the ICRP 107 (2008). The software is being widely put on trial and comparison with other methods of calculation available. (Author)

  10. Calculo de Parámetros Electrónicos Para el Grafito Bernal

    Directory of Open Access Journals (Sweden)

    Claudia Villaquirán

    2002-06-01

    Full Text Available Using ab-initio calculation, we have computed different electronic parameters associated with the transport coefficients of graphite Bernal. Software CRYSTAL¹ was used with a Pople standard STO- 21G* basis set. Different hamiltonians were tested, choosing a restricted Hartree-Fock one, because it generated the best qualitative results. All graphites studied present a valence bandwidth near 0.60 a.u., in agreement with the literature. In hexagonal Bernal graphite the splitting of the valence P band was accentuated, and E F = -0.00140 a.u. The surface Fermi is located around the HKH edge of the first Brillouin zone. In general such surfaces present a central electron orbit of maximal size in the plane, which diminish in size when the z component of the vector moves in KH direction. Integrating on the surface Fermi calculates the time relaxation parallel and the time relaxation perpendicular and finally we evaluate the parallel and perpendicular resistivity.

  11. DOSEFU: Computer application for dose calculation and effluent management in normal operation; DOSEFU: Aplicacion informatica para calculo de dosis y gestion de efluents en operacion normal

    Energy Technology Data Exchange (ETDEWEB)

    Martin Garcia, J. E.; Gonzalvo Manovel, A.; Revuelta Garcia, L.

    2002-07-01

    DOSEFU is a computer application on Windows that develops the methodology of nuclear power plant Exterior Dose Calculation Manuals (Manuals de Calculo de Dosis al Exterior-MACADE) for calculating doses in normal operation caused by radioactive liquid and gaseous effluents, for the purpose of enforcing the new Spanish Regulation on Health Protection against Ionizing Radiations, Royal Decree 783/2001 resulting from transposition of Directive 96/29/Euratom whereby the basic rules regarding health protection of workers and the population against risks resulting from ionizing radiations are established. In addition to making dose calculations, DOSEFU generates, on a magnetic support, the information regarding radioactive liquid and gaseous effluents that plants must periodically send to the CSN (ELGA format). The computer application has been developed for the specific case of Jose Cabrera NPP, which is called DOEZOR. This application can be easily implemented in any other nuclear or radioactive facility. The application is user-friendly, as the end user inputs data and executes the different modules through keys and dialogue boxes that are enabled by clicking on the mouse (see figures 2, 3, 4 and 5 ), The application runs under Windows 95. Digital Visual Fortran has been used as the development program, as this does not require additional libraries (DLLs), it can be installed in any computer without affecting other programs that are already installed. (Author)

  12. Systems for the calculation of electrical parameters and energy efficiency for high-capacity hydroelectric generators; Sistemas para el calculo de parametros electricos y eficiencia energetica para generadores hidroelectricos de gran capacidad

    Energy Technology Data Exchange (ETDEWEB)

    Reyes Martinez, Oscar Alfonso; Pascacio de los Santos, Alberth; Perez Abad, Carlos Alberto [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico); Leon Rivera, Nicolas [CFE-LAPEM, Irapuato, Guanajuato (Mexico)

    2012-07-01

    In recent years, the Comision Federal de Electricidad (CFE) has developed important hydroelectrical power projects in Mexico. Most of them are located in the Santiago River Hydrological System in Nayarit, Mexico. A total of 27 projects with a capacity of 4,300 MW are considered but only 32% of them have been carried out. One of the most ambitious projects that continue in process of construction is the Hydroelectrical Plant La Yesca. This project will conclude in late 2012 and consists of two electric generators of 375 MW, 17 kV. It will be second in power and the third in electrical generation at the system. According to national and international standards, a set of static and dynamic tests must be performed in these generators before commissioning, to ensure their proper operation. Winding stator high voltage endurance test, three phase sudden short circuit test and energy efficiency calculation are some of the most important tests to be performed in a new electrical generator. These tests are difficult to perform on-site due to the equipment capacity required, so very few companies in the world can conduct them. In Mexico no one has the necessary infrastructure for testing in high capacity hydroelectric generators such as those from La Yesca, so the Laboratorio de Pruebas a Equipos y Materiales (LAPEM) has invested in projects to improve this project in order to meet the needs of the Mexican electricity sector. This paper is a description of the systems developed for the calculation of electrical parameters and energy efficiency for this class of generators. [Spanish] En los ultimos anos, la Comision Federal de Electricidad (CFE) ha desarrollado importantes proyectos hidroelectricos en Mexico. La mayor parte se ubican en el Sistema Hidrologico del Rio Santiago en Nayarit, Mexico. Se consideran un total de 27 proyectos con capacidad de 4300 MW, pero solo 32 % de ellos se han llevado a cabo. Uno de los proyectos mas ambiciosos que continua en proceso de

  13. Computational Fluid Dynamics.

    Science.gov (United States)

    1986-06-01

    the second local aspect of that work. Furthermore, this work also incorporates the effects of the errors resulting from the numerical integration of...space of all functions which are square integrable and H, H - -O denote the usual Sobolev spaces. To approximate the solution to the weak problem (2...into Spanish and appeared in Metodos Numericos Para Calculo y Diseno en Ingeniera 1 (1985), 67-80. [5] J. P. Fink and W. C. Rheinboldt, "Folds on the

  14. Thickness calculation software of the thermal insulation in facilities using thermal solar energy; Software para el calculo de espesores del aislante termico en instalaciones de aprovechamiento de energia solar termica

    Energy Technology Data Exchange (ETDEWEB)

    Portillo Jimenez, Canek [Universidad Autonoma de Sinaloa, Culiacan, Sinaloa (Mexico)]. E-mail: cnk@uas.uasnet.mx

    2010-11-15

    It is presented a software application for calculating the thickness of the thermal insulation used in various facilities where there are thermal systems using solar energy. The software facilitates the calculation of the thermal cover thickness over components such as pipes (flat or round), storage and other devices that require thermal protection, installed in outdoors or indoors. The software was programmed in Visual Basic by following the technical specifications of the current regulations in the field. Application examples are performed, obtaining certain results that are discussed briefly. [Spanish] Se presenta un software de aplicacion para el calculo de los espesores de los aislantes termicos, utilizados en diferentes instalaciones donde existen sistemas de aprovechamiento termico de energia solar. El software facilita el calculo del grosor del recubrimiento termico en componentes tales como: tuberias (planas o circulares), depositos acumuladores y otros aparatos que necesiten proteccion termica, instalados en exteriores o en interiores. El software fue programado en Visual Basic siguiendo las especificaciones tecnicas de la normatividad vigente en la materia. Se realizan ejemplos de aplicacion, donde se obtienen ciertos resultados de los cuales se hace una breve discusion.

  15. Computer program for the calculation of stresses in rotary equipment discs; Programas de computo para el calculo de esfuerzos en discos de equipo rotatorio

    Energy Technology Data Exchange (ETDEWEB)

    Gutierrez Delgado, Wilson; Kubiak, Janusz; Serrano Romero, Luis Enrique [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1990-12-31

    In the preliminary design and diagnosis of rotary machines is very common to utilize simple calculation methods for the mechanical and thermal stresses, dynamic and thermodynamic analysis and flow of fluids in this machines (Gutierrez et al., 1989). The analysis with these methods provides the necessary results for the project initial stage of the machine. Later on, more complex tools are employed to refine the design of some machine components. In the Gutierrez report et al., (1989) 34 programs were developed for the preliminary design and diagnosis of rotating equipment; in this article, one of them is presented in which a method for the analysis of mechanical and thermal stresses is applied in discs of uniform or variable thickness that are normally found in turbomachines and rotary equipment. [Espanol] En el diseno preliminar y diagnostico de maquinas rotatorias es muy comun emplear metodos de calculo sencillos para el analisis de esfuerzos mecanicos y termicos, analisis dinamico y termodinamico y de flujo de fluidos en estas maquinas (Gutierrez et al., 1989). El analisis con estos metodos proporcionan los resultados necesarios para la etapa del proyecto inicial de la maquina. Posteriormente, para refinar el diseno de algunos componentes de la maquina, se aplican las herramientas mas complejas. En el informe de Gutierrez et al., (1989) se desarrollan 34 programas para el diseno preliminar y diagnostico de equipo rotatorio; en este articulo, se presenta uno de ellos, en el que se emplea un metodo para el analisis de esfuerzos mecanicos y termicos en discos de espesor constante o variable que se encuentran comunmente en turbomaquinas y en equipos rotatorios.

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

    Energy Technology Data Exchange (ETDEWEB)

    Silvestre, Larissa Jacome Barros

    2016-07-01

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

  17. Numerical Analysis of Turbulent Structures with a {kappa}-{epsilon} 3D Model of a Flow over a Cubic Obstacle; Estudio numerico de estructuras turbulentas con un modelo {kappa}-{epsilon} en 3D de un flujo sobre un obstaculo cubico

    Energy Technology Data Exchange (ETDEWEB)

    Millan Barrera, Cecia; Ramirez Leon, Hermilo [Instituto Mexicano de Tecnologia del Agua, Jiutepec, Morelos (Mexico)

    2001-12-01

    A numerical analysis is applied to a flow in an open channel and deformed by a three dimensional obstacle. The proposed model solves the 3-D Navier-Stokes equations, to which a {kappa}-{epsilon} turbulence model is coupled. The numerical analysis was constructed using a finite difference formulation for time evaluation purposed and staggered cells for space evaluation. The main goal of the present work was to study the turbulent structures and patterns of the flow due to an obstacle at the bottom of the channel plate. Our results are according to those found in the related literature. Flow patterns allow establishing the generation of turbulent structures by means of a comparison between this study and a most recent related work that evaluates the vorticity of the flow. [Spanish] Se reportan los resultados obtenidos, mediante simulaciones numericas, del movimiento del flujo en un canal con superficie libre y un obstaculo en el fondo. El sistema ecuaciones utilizado resuelve las ecuaciones de Navier-Stokes en tres dimensiones, al cual se le acoplo un modelo de turbulencia tipo {kappa}-{epsilon}. La solucion se obtiene numericamente utilizando un esquema en diferencias finitas para la evaluacion temporal de las variables y una celda escalonada para la evaluacion espacial de las mismas. El objetivo del modelo es estudiar los patrones de flujo y las estructuras turbulentas que se generan debido a la presencia del obstaculo. El estudio se realizo para un flujo en tres dimensiones. Los resultados son satisfactorios, ya que muestran concordancia con otros estudios numericos y experimentales encontrados en la literatura.

  18. Proceedings of the Symposium on Current Concepts and Approaches on Animal Test Alternatives

    Science.gov (United States)

    1993-09-01

    parameters (e.g., ring versus no ring) for the correlation "* computer technology. In a strict sense, QSAR toxicity estimates are actually in calculo ...for develop- mental compounds, the cross-validation of bioassays, dose ranging for bioassays, and performing toxicity experiments in calculo

  19. Accelerated radiotherapy planners calculated by parallelization with GPUs; Aceleracion del calculo de planificadores de radioterapia mediante paralelizacion con GPUS

    Energy Technology Data Exchange (ETDEWEB)

    Reinado, D.; Cozar, J.; Alonso, S.; Chinillach, N.; Cortina, T.; Ricos, B.; Diez, S.

    2011-07-01

    In this paper we have developed and tested by a subroutine parallelization architectures graphics processing units (GPUs) to apply to calculations with standard algorithms known code. The experience acquired during these tests shall also apply to the MC calculations in radiotherapy if you have the code.

  20. Resilient Modulus of Freeze-Thaw Affected Granular Soils for Pavement Design and Evaluation. Part 2. Field Validation Tests at Winchendon, Massachusetts, Test Sections,

    Science.gov (United States)

    1986-10-01

    tIloIII ( _ 0, P ll I I I P Ilil I I I I " ()31 0 󈨒 Wo 3 Ap 󈨓 -0 25Fb𔄃 - 9 a 9 ()72 Fer 󈨓 :0 79 Map 󈨓 1 2M t𔃺 o1 AtS (.) 12 Mar 󈨞 (0) IO Ap...analysis of the six test sections are sum- Radius (m) •0 0 2 04 0 6 08 1 0 o E 400 Actual Basin - -- j/ / Calculoated Baosin 00 .. ~~~~~ ~~1200 1 1...35 - Oacc’..c- 20.. -’. - I 055 35 a 12 March 1980 (Day 72) JAy." I 9eo D., Plate P .el 3rh(?.L) 237 PLato Pr cc,.c a:+ 2.S 155 l8q T(’C3 .. .’" d Ll

  1. Test

    DEFF Research Database (Denmark)

    Bendixen, Carsten

    2014-01-01

    Bidrag med en kortfattet, introducerende, perspektiverende og begrebsafklarende fremstilling af begrebet test i det pædagogiske univers.......Bidrag med en kortfattet, introducerende, perspektiverende og begrebsafklarende fremstilling af begrebet test i det pædagogiske univers....

  2. Consideraciones respecto al calculo de empalmes atornillados de perfiles estructurales de GFRP sometidos a flexión

    Directory of Open Access Journals (Sweden)

    Serna, Eduardo

    2003-06-01

    Full Text Available A composite material can be defined as the combination of two or more materials with the aim of obtaining a new product with improved properties. Composite materials, composed of a polymer matrix reinforced with fibers, are currently used as structural elements, in spite of the uncertainties on strength, deformability and durability. The use of pultruded profiles in shapes similar to those used in metallic construction, results in an interesting solution for this material when high resistance. protection against chemical attacks and lightness are required. The structural key point of those materials are the joints. The present paper is focused on joints composed of bolted plates on the wings of IPN pultruded profiles. Different tests conducted in LABEIN are described. Likewise, this paper deals with tests carried out with the purpose of analysing the feasibility of joints with high resistance bolts.Se entiende como material compuesto la combinación de dos o más materiales para obtener un nuevo producto que mejore las propiedades individuales de cada uno ellos. Se está comenzando a emplear el material compuesto. formado por una matriz de tipo polimérico o resina reforzada con fibras. como elementos estructurales. pero con reticencias originadas por las incertidumbres existentes en la actualidad relativas a su resistencia, deformabilidad y durabilidad. Este material aporta un importante interés cuando se quieren obtener elementos estructurales de alta resistencia . protección frente a ataques químicos y ligereza. utilizando perfiles a la manera de la estructura metálica. fabricados por pultrusión, Debido a que el punto crítico estructural se encuentra en las uniones. el presente artículo se centrará en los empalmes atornillados con cubrejuntas de alas de perfiles pultruídos IPN, describiendo los ensayos de diferente naturaleza realizados en las instalaciones del Centro Tecnológico LABEIN. A su vez se recogen los ensayos previos

  3. Development of a computational model applied to a unitary 144 cm{sup 2} proton exchange membrane fuel cell; Desenvolvimento de um modelo numerico computacional aplicado a uma celula a combustivel unitaria de 144 CM{sup 2} tipo PEM

    Energy Technology Data Exchange (ETDEWEB)

    Robalinho, Eric

    2009-07-01

    This work presents the development of a numerical computer model and methodology to study and design polymeric exchange membrane fuel cell - PEM. For the validation of experimental results, a sequence of routines, appropriate to fit the data obtained in the laboratory, was described. At the computational implementation it was created a new strategy of coupling two 3-dimensional models to satisfy the requirements of the comprehensive model of the fuel cell, including its various geometries and materials, as well as the various physical and chemical processes simulated. To effective assessment of the real cell analogy with numerical model, numerical studies were carried out. Comparisons with values obtained in the literature, characterization of variables through laboratory experiments and estimates from models already tested in the literature were also performed. Regarding the experimental part, a prototype of a fuel cell unit of 144 cm of geometric area was designed, produced and operated at laboratory with the purpose of validating the numerical computer model proposed, with positive results. The results of simulations for the 2D and 3D geometries proposed are presented in the form of polarization curves, highlighting the catalytic layer model based on the geometry of agglomerates. Parametric and sensitivity studies are presented to illustrate the change in performance of the fuel cell studied. The final model is robust and useful as a tool for design and optimization of PEM type fuel cells in a wide range of operating conditions. (author)

  4. Development of a computational model applied to a unitary 144 CM{sup 2} proton exchange membrane fuel cell; Desenvolvimento de um modelo numerico computacional aplicado a uma celula a combustivel unitaria de 144 CM{sup 2} tipo PEM

    Energy Technology Data Exchange (ETDEWEB)

    Robalinho, Eric

    2009-07-01

    This work presents the development of a numerical computer model and methodology to study and design polymeric exchange membrane fuel cell - PEM. For the validation of experimental results, a sequence of routines, appropriate to fit the data obtained in the laboratory, was described. At the computational implementation it was created a new strategy of coupling two 3-dimensional models to satisfy the requirements of the comprehensive model of the fuel cell, including its various geometries and materials, as well as the various physical and chemical processes simulated. To effective assessment of the real cell analogy with numerical model, numerical studies were carried out. Comparisons with values obtained in the literature, characterization of variables through laboratory experiments and estimates from models already tested in the literature were also performed. Regarding the experimental part, a prototype of a fuel cell unit of 144 cm{sup 2} of geometric area was designed, produced and operated at laboratory with the purpose of validating the numerical computer model proposed, with positive results. The results of simulations for the 2D and 3D geometries proposed are presented in the form of polarization curves, highlighting the catalytic layer model based on the geometry of agglomerates. Parametric and sensitivity studies are presented to illustrate the change in performance of the fuel cell studied. The final model is robust and useful as a tool for design and optimization of PEM type fuel cells in a wide range of operating conditions. (author)

  5. Calculation of economic viability of alternative energy sources considering its environmental costs for small communities of Northeast Brazil; Calculo de viabilidade economica de fontes alternativas de energia considerando seus custos ambientais para pequenas comuidades da regiao nordeste brasileira

    Energy Technology Data Exchange (ETDEWEB)

    Stecher, Luiza Chourkalo

    2014-09-01

    There has been an increasing concern about current environmental issues caused by human activity, as the world searches for development. The production of electricity is an extremely relevant factor in this scenario since it is responsible for a large portion of the emissions that cause the greenhouse effect. Due to this fact, a sustainable development with alternative energy sources, which are attractive for such purpose, must be proposed, especially in places that are not supplied by the conventional electricity grid such as many communities in the Northeast Brazil. This work aims to calculate the environmental cost for the alternative sources of energy - solar, wind and biomass - during electricity generation, and to estimate the economic feasibility of those sources in small communities of Northeast Brazil, considering the avoided costs. The externalities must be properly identified and valued so the costs or benefits can be internalized and reflect accurately the economic feasibility or infeasibility of those sources. For this, the method of avoided costs was adopted for the calculation of externalities. This variable was included in the equation developed for all considered alternative energy sources. The calculations of economic feasibility were performed taking the new configurations in consideration, and the new equation was reprogrammed in the Programa de Calculo de Custos de Energias Alternativas, Solar, Eolica e Biomassa (PEASEB). The results demonstrated that the solar photovoltaic energy in isolated systems is the most feasible and broadly applicable source for small communities of Northeast Brazil. (author)

  6. A FORTRAN program for the use of digital terrain elevation models of the Instituto Nacional de Estadistica, Geografia e Informatica of Mexico (INEGI); Programa en FORTRAN para el manejo de modelos digitales de elevacion del terreno del Instituto Nacional de Estadistica, Geografia e Informatica de Mexico (INEGI)

    Energy Technology Data Exchange (ETDEWEB)

    Garcia Estrada, Gerardo [Gerencia de Proyectos Geotermoelectricos de la Comision Federal de Electricidad, Morelia (Mexico)

    1996-09-01

    producir un mapa en coordenadas planas rectangulares en metros. Durante la delimitacion de la ventana se hace un filtrado simple para disminuir los errores numericos que existen en el archivo y si se desea puede elegirse un submuestreo de los datos para preparar mapas menos detallados pero de gran cobertura. El programa ha sido desarrollado y probado extensamente en la Gerencia de Proyectos Geotermoelectricos de la Comision Federal de Electricidad (CFE) de Mexico, en donde se utiliza en estudios regionales para la elaboracion de mapas base, el trazo automatico de perfiles topograficos y el calculo de condiciones de frontera para modelos termicos. Otros usos directos son el calculo de las correcciones por rugosidad o la estimacion de efectos isostaticos en estudios gravimetricos, la estimacion de cotas topograficas para puntos de coordenadas horizontales conocidas, el modelado termico de efectos climaticos en funcion de la topografia, el calculo automatico de volumenes de material y muchos otros.

  7. Mathematical and numerical modeling of the turbulent dispersion of reactive pollutant plumes; Modelacion matematica y numerica de la dispersion turbulenta de plumas de contaminantes reactivos

    Energy Technology Data Exchange (ETDEWEB)

    Rodas Grapain, Arturo

    1999-07-01

    One of the main problems involved in air quality models to calculate the pollutant concentration in a single point in the space and time, is the complexity of the numerical method. Even though the numerical methods are based on sophisticated and elaborated mathematics. They present two important and inevitable drawbacks: the stability of the numerical method. This means that its capacity to obtain reliable convergency in relation to the calculated values and real values is limited. The time and memory consumption. The high machine memory used to perform the numerical procedures and the time needed to prepare such procedures. Another problem is the mathematical basis of the structure of the air quality model. Commonly, simple models can perform quick estimations; however they are not exact contrary to the complex and elaborated models. In order to employ these complex models a high speed computer (workstations or Cray computer) is required. For this reason, this work presents a model approach with a relatively simple theoretical structure. The structure of this model named MOTTQUIP (modelo de transporte turbulento y quimica de plumas) can provide good results in point concentration operations. These results are compared with those obtained by two moderately complex mathematical models (Georgopoulos-Seinfeld and Lipphardt reactive plume models). The model developed in this work, shows a special feature where the solution of the differential equations are not involved explicitly. Therefore, it does not present the typical difficult in solving this kind of equations with the traditional numerical methods. [Spanish] Uno de los principales problemas que se presentan en los modelos de calidad del aire para el calculo de la concentracion de un cierto contaminante, para un punto dado en el espacio y en el tiempo, es la complejidad del metodo numerico involucrado para este fin, debido a que dichos metodos de calculo estan basados en matematicas sofisticadas y muy

  8. Validation of Hiriart equation to compute steam production by the lip pressure method; Validacion de la ecuacion de Hiriart para calculo de gasto de vapor por el metodo de presion de labio

    Energy Technology Data Exchange (ETDEWEB)

    Flores Armenta, Magaly [Gerencia de Proyectos Geotermoelectricos de la Comision Federal de Electricidad, Morelia (Mexico)

    1996-09-01

    Mainly in new geothermal wells, it is necessary to evaluate the production in a very fast, simple and not expensive way, to know the convenience to install surface equipment, such as silencers and separators, to drive the steam to the commercial gathering system. In practice, one of the most known methods is the lip pressure one, which requires a simple set of installations. The objective of this paper is to validate the steam flow rate calculated by the lip pressure method, with respect to the ASME method. The ASME method is known for its accuracy, and is done by measuring the steam and liquid after a high pressure separator, by an orifice plate of known diameter and a triangular weir. Results of the validation show up the feasibility of application of the lip pressure method by using a simple adjustment equation. Percentage of mistake results less than 1%, without any notable influence of the production enthalpy. That equation to be applied in a general case, is as follows: Q{nu} =(20642)(F*P*D{sup 2}/{radical}h-2000). For the particular case of the Los Azufres geothermal field, the equation is: Q{nu}= 810*P*D{sup 2} [Espanol] En los pozos geotermicos, principalmente en los nuevos, es necesario evaluar su produccion de manera rapida, sencilla y economica, para determinar la conveniencia de instalar equipo superficial, como separadores, silenciadores, etc., que permita la integracion del vapor al sistema comercial de generacion electrica. Para fines practicos uno de los metodos mas conocidos es el de presion de labio, que solo requiere un arreglo sencillo de instalaciones superficiales. En este documento se validan y ajustan los calculos de produccion de vapor por ese metodo de presion de labio, con respecto a las mediciones exactas efectuadas con el metodo ASME. Este ultimo es reconocido internacionalmente por su precision, y se lleva a cabo separando la mezcla obtenida en superficie en un recipiente a presion para medir el vapor a traves de una placa de orificio

  9. Calculation of attenuation by rain using the DAH model and diameter of antennas for the Ka Band in Mexico; Calculo de atenuacion por lluvia usando el modelo DAH y diametro de antena para Banda Ka en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Landeros-Ayala, S.; Neri-Vela, R; Cruz-Sanchez, H.; Hernandez-Bautista, H. [Universidad Nacional Autonoma de Mexico, Mexico, D.F. (Mexico)

    2002-03-01

    Fatim Haidara), combinado con los mapas globales de distribucion de lluvia de Crane, para el calculo de la atencion por lluvia en sistema de comunicacion por satelite que operen en la Banda Ka. Ademas, se proponen diametros de antena para los sistemas de comunicaciones en Banda Ka en diferentes localidades de la Republica Mexicana, empleando para ello, los margenes de atencion por lluvia obtenidos a trav del Modelo DAH, y usando como referencia las caracteristicas del satelite de comunicaciones ANIK F2 y de una estacion terrena VSAT.Se muestra una fig. de la atenuacion por lluvia a 27.5 gHz y de los diametros de antena para banda Ka en Mexico. Se da una tabla de la atenuacion por lluvia a 29.5 GHz y a 20.2 GHz.

  10. DIMCO. A new system for mechanical and bidimensional, of nuclear fuel pins; DIMCO un nuevo sistema de calculo mecanico de combustibles nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Moreno, A.

    1977-07-01

    The system developed in JEN, for: the mechanical analysis uni and bidimensional, of nuclear fuels is presented. The mathematical and numerical foundations used, are here described. And so the models developed for effects such as swelling, cracking, clad growth etc. Numerical results for several cases are presented. a) Numerical test in one and two dimensions. b) Applicability range, c) Interaction effects. d) Influence of the power history. (Author) 17 refs.

  11. Validation of analytical method to calculate the concentration of conjugated monoclonal antibody; Validacao de metodo analitico para calculo de concentracao de anticorpo monoclonal conjugado

    Energy Technology Data Exchange (ETDEWEB)

    Alcarde, Lais F.; Massicano, Adriana V.F.; Oliveira, Ricardo S.; Araujo, Elaine B. de, E-mail: lais_alcarde@hotmail.com [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2013-07-01

    The objective of this study was to develop a quantitative analytical method using high performance liquid chromatography (HPLC) to determine the antibody concentration in conjunction with bifunctional chelator. Assays were performed using a high performance liquid chromatograph, and the following conditions were used: flow rate of 1 mL / min, 15 min run time, 0.2 M sodium phosphate buffer pH 7.0 as the mobile phase and column of molecular exclusion BioSep SEC S-3000 (300 x 7.8 mm, 5 μM - Phenomenex). The calibration curve was obtained with AcM diluted in 0.2 M sodium phosphate buffer pH 7.0 by serial dilution, yielding the concentrations: 400 μg/mL, 200 μg/mL, 100 μg/mL, 50 μg/mL, 25 μg/mL and 12.5 μg/mL. From the calibration curve calculated the equation of the line and with it the concentration of the immunoconjugate. To ensure the validity of the method accuracy and precision studies were conducted. The accuracy test consisted in the evaluation of 3 samples of known concentration, being this test performed with low concentrations (50 μg/mL), medium (100 μg/mL) and high (200 μg/mL). The precision test consisted of 3 consecutive measurements of one sample of known concentration, subject to the conditions set forth above for the other tests. The correlation coefficient of the standard curve was greater than 97%, the accuracy was satisfactory at low concentrations as well as accuracy. The method was validated by showing it for the accurate and precise determination of the concentration of the immunoconjugate. Furthermore, this assay was found to be extremely important, because using the correct mass of the protein, the radiochemical purity of the radioimmunoconjugate was above 95% in all studies.

  12. Experimental and numerical analysis of the intercept method for evaluating stable crack extension in a steel C(T) specimen; Analisis experimental y numerico del metodo del intercepto para evaluar la extension estable de grieta en una probeta C(T) de acero

    Energy Technology Data Exchange (ETDEWEB)

    Donoso, J. R.; Leiva, R.; Labbe, F.

    2009-07-01

    A new method for evaluating the crack size in a fracture mechanics test which only has force-displacement data P-{nu}, is introduced. this method consists in generating P-{nu} data of an A 508 C(T) specimen, and a two-dimensional finite element model, it is shown that the method contributes to generate relevant data concerning the evolution of the crack size in a test. The results obtained with the method make it possible to construct a J-R curve which is practically identical to that constructed with the original experimental data. (Author) 11 refs.

  13. Numerical modeling of a rotor misalignment; Modelado numerico del desalineamiento de un rotor

    Energy Technology Data Exchange (ETDEWEB)

    Leon Pina, Roberto

    2009-12-15

    In the turbo-machinery area after an unbalancing, the misalignment is the fault that most frequently appears, and this one has been little studied compared to the unbalance. The misalignment appears when the geometric centers of two shafts and/or bearings do not coincide, these differences take place by different factors such as: incorrect installation of the bearings or rotors, thermal effects, or rotor weight, to mention some of them. The of the misalignment diagnosis continues being an area little studied, since the effects it generates are complex and include diverse physical processes reason why it presents/displays similar symptoms to those of other faults; thus, one of the methods that are used to diagnose this fault, is based on analyzing the vibration phantoms but this works only under particular conditions. In order to reproduce the dynamic behavior of a misaligned rotor, in the present work non-linear simplified models of the supports are used, whose objective is to contribute to facilitate future studies of the flow-dynamic behavior of the bearing, helping to identify the type and magnitude of the existing non-linearity in the supports and leaning in the analysis of the vibratory behavior of misaligned rotors observed in the field. [Spanish] En el area de turbomaquinaria despues del desbalance, el desalineamiento es la falla que se presenta con mayor frecuencia, y esta se ha estudiado poco comparada con el desbalance. El desalineamiento se presenta cuando los centros geometricos de dos flechas y/o chumaceras no coinciden, estas diferencias se producen por diferentes factores como: instalacion incorrecta de las chumaceras o rotores, efectos termicos, o el peso del rotor, por mencionar algunos. El diagnostico del desalineamiento sigue siendo una area poco estudiada, ya que los efectos que genera son complejos y abarcan diversos procesos fisicos por lo que presenta sintomas similares a los de otras fallas; asi, uno de los metodos que se utilizan para diagnosticar esta falla, se basa en analizar los espectros de vibracion pero esta solo funciona bajo condiciones particulares. Con el proposito de reproducir el comportamiento dinamico de un rotor desalineado, en el presente trabajo se utilizan modelos simplificados no-lineales de los apoyos, cuyo objetivo es contribuir a facilitar estudios futuros del comportamiento fluidodinamico de las chumaceras, ayudando a identificar el tipo y magnitud de la no linealidad presente en los apoyos y apoyandose en el analisis del comportamiento vibratorio de rotores desalineados observado en campo.

  14. Numerical analysis of thermoluminescence glow curves; Analisis numerico de las cruvas de termoluminiscencia

    Energy Technology Data Exchange (ETDEWEB)

    Gomez Ros, J. M.; Delgado, A.

    1989-07-01

    This report presents a method for the numerical analysis of complex thermoluminescence glow curves resolving the individual glow peak components. The method employs first order kinetics analytical expressions and is based In a Marquart-Levenberg minimization procedure. A simplified version of this method for thermoluminescence dosimetry (TLD) is also described and specifically developed to operate whit Lithium Fluoride TLD-100. (Author). 36 refs.

  15. Thermical Load Calculation and Capacity of Cooling and Venting Equipment of a Diesel Engine Emissions Study Bench; Calculo de Cargas Termicas y Capacidad de los Equipos de Refrigeracion y Ventilacion de un Banco de Estudio de Emisiones de Motores Diesel

    Energy Technology Data Exchange (ETDEWEB)

    Rojas Garcia, E.; Fonseca Gonzalez, N. A.

    2005-07-01

    The present report tries to develop the calculation of thermical loads and to define the capacity of the equipments of cooling and ventilation that should have the engines test bench that is being ensemble in the installation of the CIEMAT named {sup D}iesel engine emissions study bench (E65-P0). The test bench is formed essentially by a dynamometrical brake and an engine connected at previous one, both of them inside a cabin of isolation acoustic. The thermical loads to be dissipated will be calculated for all the elements that compose the bench and considering his maximum values, to determine the suitable system of cooling air - water of the devices and ventilation in the cabin. (Author) 2 refs.

  16. Influence of the choice of parameters of the TAC in the calculation of volumes for different planners; Influencia de la eleccion de los parametros del TAC en el calculo de volumenes para distintos planificadores

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez Mazon, J.; Raba Diez, J. L.; Vazquez Rodriguez, J. A.; Pacheco Baldor, M. T.; Mendiguren Santiago, M. A.

    2011-07-01

    In the Protocol for the control treatment planning systems with ionizing radiation of the proposed SEFM tests to verify proper operation of the calculation in the evaluation of DVH (Dose Volume Histogram). The calculation of the volume that makes a planner may have important implications because it can trigger an overestimation of the dose or otherwise. We present a comparison of the calculation of volumes estimated with 4 different planners.

  17. Calculation of dose in anthropomorphic dummies ICRP 110 simulation of protocols overall for a team of 320 sections TC; Calculo de dosis en maniquies antropomorficos ICRP 110 mediante simulacion de protocolos generales para un equipo de TC de 320 secciones

    Energy Technology Data Exchange (ETDEWEB)

    Cros Torrents, M.; Geleijns, J.; Salvador Artells, M.

    2013-07-01

    The objective of this study is to carry out, using a program of simulation Monte Carlo, an estimate of the dose received in anthropomorphic mannequins voxelized in tests of four protocols established for the Aquilion ONE General acquiring in conical beam of 320 X 0, 5 mm. Finally, will be obtained factors of conversion between values of product dose (DLP) length and effective doses for each protocol. (Author)

  18. Development of a computational model for the calculation of neutron dose equivalent in laminated primary barriers of radiotherapy rooms; Desenvolvimento de um modelo computacional para calculo do equivalente de dose de neutrons em barreiras primarias laminadas de salas de radioterapia

    Energy Technology Data Exchange (ETDEWEB)

    Rezende, Gabriel Fonseca da Silva

    2015-06-01

    Many radiotherapy centers acquire 15 and 18 MV linear accelerators to perform more effective treatments for deep tumors. However, the acquisition of these equipment must be accompanied by an additional care in shielding planning of the rooms that will house them. In cases where space is restricted, it is common to find primary barriers made of concrete and metal. The drawback of this type of barrier is the photoneutron emission when high energy photons (e.g. 15 and 18 MV spectra) interact with the metallic material of the barrier. The emission of these particles constitutes a problem of radiation protection inside and outside of radiotherapy rooms, which should be properly assessed. A recent work has shown that the current model underestimate the dose of neutrons outside the treatment rooms. In this work, a computational model for the aforementioned problem was created from Monte Carlo Simulations and Artificial Intelligence. The developed model was composed by three neural networks, each being formed of a pair of material and spectrum: Pb18, Pb15 and Fe18. In a direct comparison with the McGinley method, the Pb18 network exhibited the best responses for approximately 78% of the cases tested; the Pb15 network showed better results for 100% of the tested cases, while the Fe18 network produced better answers to 94% of the tested cases. Thus, the computational model composed by the three networks has shown more consistent results than McGinley method. (author)

  19. Test Architecture, Test Retrofit

    Science.gov (United States)

    Fulcher, Glenn; Davidson, Fred

    2009-01-01

    Just like buildings, tests are designed and built for specific purposes, people, and uses. However, both buildings and tests grow and change over time as the needs of their users change. Sometimes, they are also both used for purposes other than those intended in the original designs. This paper explores architecture as a metaphor for language…

  20. Optimization of the parameter calculation the process of production historic by using Parallel Virtual Machine-PVM; Otimizacao do calculo de parametros no processo de ajuste de historicos de producao usando PVM

    Energy Technology Data Exchange (ETDEWEB)

    Vargas Cuervo, Carlos Hernan

    1997-03-01

    The main objective of this work is to develop a methodology to optimize the simultaneous computation of two parameters in the process of production history matching. This work describes a procedure to minimize an objective function established to find the values of the parameters which are modified in the process. The parameters are chosen after a sensibility analysis. Two optimization methods are tested: a Region Search Method (MBR) and Polytope Method. Both are based in direct search methods which do not require the function derivative. The software PVM (Parallel Virtual Machine) is used to parallelize the simulation runs, allowing the acceleration of the process and the search of multiple solutions. The validation of the methodology is applied to two reservoir models: one homogeneous and other heterogeneous. The advantages of each method and of the parallelization are also present. (author)

  1. Development of a program for calculation of second dose and securities in brachytherapy high dose rate; Elaboracion de un programa para el segundo calculo de la dosis y seguridades en braquiterapia de alta tasa de dosis

    Energy Technology Data Exchange (ETDEWEB)

    Esteve Sanchez, S.; Martinez Albaladejo, M.; Garcia Fuentes, J. D.; Bejar Navarro, M. J.; Capuz Suarez, B.; Moris de Pablos, R.; Colmenares Fernandez, R.

    2015-07-01

    We assessed the reliability of the program with 80 patients in the usual points of prescription of each pathology. The average error of the calculation points is less than 0.3% in 95% of cases, finding the major differences in the axes of the applicators (maximum error -0.798%). The program has proved effective previously testing him with erroneous dosimetry. Thanks to the implementation of this program is achieved by the calculation of the dose and part of the process of quality assurance program in a few minutes, highlighting the case of HDR prostate due to having a limited time. Having separate data sheet allows each institution to its protocols modify parameters. (Author)

  2. Calculation of the neutron flux and fluence in the covering of the nucleus and the vessel of a BWR; Calculo del flujo neutronico y fluencia en la envolvente del nucleo y la vasija de un reactor nuclear BWR

    Energy Technology Data Exchange (ETDEWEB)

    Martinez C, E.; Del Valle G, E. [IPN, Escuela Superior de Fisica y Matematicas, U. P. Adolfo Lopez Mateos, Col. Lindavista, 07738 Mexico D. F. (Mexico); Longoria G, L. C., E-mail: evalle@esfm.ipn.mx [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2011-11-15

    One of the main objectives related with the safety in any nuclear power plant, including the nuclear power plant of Laguna Verde, is to guarantee the structural integrity of the pressure vessel of the reactor. To identify and quantifying the damage caused be neutron irradiation in the vessel of any nuclear reactor, is necessary to know as much the neutron flux as the fluence that it has been receiving during their time of operation life, since the observables damages by means of tests mechanics are products of micro-structural effects, induced by neutron irradiation, therefore, is important the study and prediction of the neutron flux to have a better knowledge of the damage that are receiving these materials. In our calculation the code DORT was used, which solves the transport equation in discreet coordinates and in two dimensions (x-y, r-{theta} and r-z), in accord to the regulator guide, it requires to make and approach of the neutron flux in three dimensions by means of the Synthesis Method. Whit this method is possible to achieve a representation of the flux in 3D combining or synthesizing the calculated fluxes by DORT code in r-{theta}, r-z and r. In this work the application of the Synthesis Method is presented, according to the Regulator Guide 1.190, to determine the fluxes 3D in the interns of a BWR using three different space meshes. (Author)

  3. Use of Monte Carlo simulation software for the calculation of the effective dose in cone beam Tomography; Uso del software de simulacion Monte Carlo para el calculo de la dosis efectiva en Tomografia de haz conico

    Energy Technology Data Exchange (ETDEWEB)

    Gomes B, W. O., E-mail: wilsonottobatista@gmail.com [Instituto Federal da Bahia, Rua Emidio dos Santos s/n, Bardalho, 40301-015 Salvador, Bahia (Brazil)

    2015-10-15

    Full text: In this study irradiation geometry applicable to PCXMC and the consequent calculation of effective dose in applications of cone beam computed tomography (CBCT) was developed. Two different CBCT equipment s for dental applications were evaluated: Care Stream Cs-9000 3-Dimensional and Gendex GXCB-500 tomographs. Each protocol initially was characterized by measuring the surface kerma input and the product air kerma-area, P{sub KA}. Then, technical parameters of each of the predetermined protocols and geometric conditions in the PCXMC software were introduced to obtain the values of effective dose. The calculated effective dose is within the range of 9.0 to 15.7 μSv for Cs 9000 3-D and in the range 44.5 to 89 mSv for GXCB-500 equipment. These values were compared with dosimetric results obtained using thermoluminescent dosimeters implanted in anthropomorphic mannequin and were considered consistent. The effective dose results are very sensitive to the radiation geometry (beam position); this represents a factor of fragility software usage, but on the other hand, turns out to be a very useful tool for quick conclusions regarding the optimization process of protocols. We can conclude that the use of Monte Carlo simulation software PCXMC is useful in the evaluation of test protocols of CBCT in dental applications. (Author)

  4. Hydrodynamic calculation of a filter sand bed type used in the containment venting systems; Calculo hidrodinamico de un filtro tipo lecho de arena usado en los sistemas de venteo de la contencion

    Energy Technology Data Exchange (ETDEWEB)

    Cuevas V, D.; Sainz M, E.; Ortiz V, J., E-mail: delfy.cu@gmail.com [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2015-09-15

    The filtered venting of the containment has been adopted in European countries to mitigate the consequences of excess pressure containment during a severe accident. When venting has taken place, the fission products are released directly into the environment, unless a filter on the same path is placed, so that various types of filters are used to trap the fission products. The venting filters of the containment currently installed use different filtration technologies that involve more than one medium. Those using water as the first stage of filtration are called wet systems and are equipped with additional steps to remove water drops and fine aerosols emissions. And even they may also be equipped with an element containing certain absorption means for the filtration of gaseous iodine species. Other designs based on filtration of deep bed as the primary retention step; called dry filters, use filtration media of metal fiber, ceramic or sand to trap aerosols. This paper evaluates the hydraulic characteristics of the filter sand bed type designed by EDF as a candidate to be installed in the containment of BWR Mark II (type of primary containment of the nuclear power plant of Laguna Verde). The evaluation of filter sand bed type was performed using the software package of open source OpenFOAM. Models of each zone of the filtered device were generated and through a series of parametric calculations of computational fluid mechanics relevant hydrodynamic characteristics of the device were obtained, such as pressure drops against mass flow rate and pressure fields and speed at different operating conditions. On the other hand, the model validation of the sand bed filter when comparing the results of experimental tests on a sand column of PITEAS program (1985-1986) against OpenFOAM simulation was realized. The results are very close to those obtained experimentally. (Author)

  5. Testing "Compatibility Testing."

    Science.gov (United States)

    Robins, Elliot; Huston, Ted L.

    Most models of marital choice are attempts to explain choices within the field of available eligibles. The essence of compatibility testing is that people select their mates by evaluating the match between psychological characteristics after sorting the available field on the basis of social characteristics. A compatibility model seems to require…

  6. Test plan :

    Energy Technology Data Exchange (ETDEWEB)

    Dwyer, Stephen F.

    2013-05-01

    This test plan is a document that provides a systematic approach to the planned testing of rooftop structures to determine their actual load carrying capacity. This document identifies typical tests to be performed, the responsible parties for testing, the general feature of the tests, the testing approach, test deliverables, testing schedule, monitoring requirements, and environmental and safety compliance.

  7. Pinworm test

    Science.gov (United States)

    Oxyuriasis test; Enterobiasis test; Tape test ... diagnose this infection is to do a tape test. The best time to do this is in ... lay their eggs at night. Steps for the test are: Firmly press the sticky side of a ...

  8. Predictive Testing

    Science.gov (United States)

    ... you want to learn. Search form Search Predictive testing You are here Home Testing & Services Testing for ... you make the decision. What Is Predictive Genetic Testing Predictive genetic testing searches for genetic changes, or ...

  9. Pharmacogenomic Testing

    Science.gov (United States)

    ... you want to learn. Search form Search Pharmacogenomic testing You are here Home Testing & Services Testing for ... to fit your genetic makeup What Is Pharmacogenomic Testing? Pharmacogenomic testing is done before your healthcare provider ...

  10. Mono Test

    Science.gov (United States)

    ... Heterophile Test Heterophile Antibody Test Monospot Formal Name Infectious Mononucleosis Rapid Test This article was last reviewed on ... Why Get Tested? To detect and help diagnose infectious mononucleosis (mono) When To Get Tested? When a person, ...

  11. Ham test

    Science.gov (United States)

    Acid hemolysin test; Paroxysmal nocturnal hemoglobinuria - Ham test; PNH - Ham test ... BJ. In: Chernecky CC, Berger BJ, eds. Laboratory Tests and Diagnostic Procedures . 6th ed. Philadelphia, PA: Elsevier ...

  12. Coombs test

    Science.gov (United States)

    Direct antiglobulin test; Indirect antiglobulin test; Anemia - hemolytic ... No special preparation is necessary for this test. ... There are 2 types of the Coombs test: Direct Indirect The direct ... that are stuck to the surface of red blood cells. Many diseases ...

  13. Trichomonas Testing

    Science.gov (United States)

    ... Genetic Tests for Targeted Cancer Therapy Glucose Tests Gonorrhea Testing Gram Stain Growth Hormone Haptoglobin hCG Pregnancy ... With some NAATs, samples collected for testing of gonorrhea and chlamydial infections can also be used to ...

  14. Urodynamic Testing

    Science.gov (United States)

    ... Urinary Tract Imaging Urodynamic Testing Virtual Colonoscopy Urodynamic Testing What is the urinary tract? The urinary tract ... view of the urinary tract What is urodynamic testing? Urodynamic testing is any procedure that looks at ...

  15. Mono Test

    Science.gov (United States)

    ... Links Patient Resources For Health Professionals Subscribe Search Mononucleosis (Mono) Test Send Us Your Feedback Choose Topic ... Questions Related Content View Sources Also Known As Mononucleosis Spot Test Mononuclear Heterophile Test Heterophile Antibody Test ...

  16. Dosimetric calculus in intravascular brachytherapy; Calculos dosimetricos em braquiterapia intravascular

    Energy Technology Data Exchange (ETDEWEB)

    Campos, Laelia Pumilla Botelho; Stabin, Michael Gregory [Pernambuco Univ., Recife, PE (Brazil). Dept. de Energia Nuclear

    2000-07-01

    Among the cardiovascular diseases, the most common is acute myocardial infarction, which occurs because of the occlusion of one or more coronary arteries. Balloon angioplasty has been a popular treatment which is less invasive than surgeries involving revascularization of the myocardium, thus promising a better quality of life for patients. Unfortunately, the rate of restenosis (re-closing of the vessel) after balloon angioplasty is high (approximately 30-50% within the first year after treatment). Known as Intravascular Brachytherapy, the technique has been used with several radiation sources, and researchers have obtained success in decreasing the rate of restenosis. In order to study the radiation dosimetry in the patient and radiological protection for this therapy, radiation dose distributions for monoenergetic electrons and photons (at nine discrete energies) were calculated for blood vessels of diameter 0.15, 0.30 and 0.45 cm with balloon and wire sources using the radiation transport code MCNP4B. Specific calculations were carried out for several radionuclides. Two stent sources employing {sup 32}P are also simulated. Advantages and disadvantages of the radionuclides and source geometries are discussed and the dosimetry developed here will aid in the realization of the benefits obtained in patients. (author)

  17. Analisis del rendimiento y consumo de programas orientados al calculo

    OpenAIRE

    Ruiz Ramírez, Marcos

    2016-01-01

    Estudio que pretende crear una implementación de computación paralela/vectorial a las funciones y rutinas de cálculo del primer nivel del BLAS, recogida en una librería (estática o dinámica), analizando su impacto energético.

  18. Fungal Tests

    Science.gov (United States)

    ... Prep Fungal Smear, Culture, Antigen and Antibody Tests Mycology Tests Fungal Molecular Tests Potassium Hydroxide Preparation Calcofluor ... February 7, Modified). Calcofluor White with 10% KOH. Mycology Online [On-line information]. Available online at http:// ...

  19. Laboratory Tests

    Science.gov (United States)

    ... age and race What you eat and drink Medicines you take How well you followed pre-test instructions Your doctor may also compare your results to results from previous tests. Laboratory tests are often part of a routine checkup ...

  20. Malnutrition Tests

    Science.gov (United States)

    ... LDL-P) Lead Legionella Testing Leptin Levetiracetam Lipase Lipid Profile Lipoprotein (a) Lithium Liver Panel Lp-PLA2 Lupus ... Site Tests: Albumin , CBC , CMP , Electrolytes , Iron Tests , Lipid Profile , Urinalysis , Prealbumin , Vitamin D , Vitamin B12 and Folate , ...

  1. Genetic Testing

    Science.gov (United States)

    ... is responding to gluten. Unlike antibody testing, the HLA gene testing for celiac disease measures the presence or ... found on the surface of some cells. The HLA gene test for celiac disease can be performed at ...

  2. Genomic Testing

    Science.gov (United States)

    ... Counseling Genomic Testing Pathogen Genomics Epidemiology Resources Genomic Testing Recommend on Facebook Tweet Share Compartir Fact Sheet: ... Page The Need for Reliable Information on Genetic Testing In 2008, the former Secretary’s Advisory Committee on ...

  3. Randomization tests

    CERN Document Server

    Edgington, Eugene

    2007-01-01

    Statistical Tests That Do Not Require Random Sampling Randomization Tests Numerical Examples Randomization Tests and Nonrandom Samples The Prevalence of Nonrandom Samples in Experiments The Irrelevance of Random Samples for the Typical Experiment Generalizing from Nonrandom Samples Intelligibility Respect for the Validity of Randomization Tests Versatility Practicality Precursors of Randomization Tests Other Applications of Permutation Tests Questions and Exercises Notes References Randomized Experiments Unique Benefits of Experiments Experimentation without Mani

  4. Application of numerical analysis methods to thermoluminescence dosimetry; Aplicacion de metodos de analisis numerico a la dosimetria por termoluminiscencia

    Energy Technology Data Exchange (ETDEWEB)

    Gomez Ros, J. M.; Delgado, A.

    1989-07-01

    This report presents the application of numerical methods to thermoluminescence dosimetry (TLD), showing the advantages obtained over conventional evaluation systems. Different configurations of the analysis method are presented to operate in specific dosimetric applications of TLD, such as environmental monitoring and mailed dosimetry systems for quality assurance in radiotherapy facilities. (Author) 10 refs.

  5. Rigid inclusions-Comparison between analytical and numerical methods; Inclusiones rigidas-Analisis comparativo de los metodos analiticos y numericos

    Energy Technology Data Exchange (ETDEWEB)

    Gomez Perez, R.; Melentijevic, S.

    2014-07-01

    This paper compares different analytical methods for analysis of rigid inclusions with finite element modeling. First of all, the load transfer in the distribution layer is analyzed for its different thicknesses and different inclusion grids to define the range between results obtained by analytical and numerical methods. The interaction between the soft soil and the inclusion in the estimation of settlements is studied as well. Considering different stiffness of the soft soil, settlements obtained analytical and numerically are compared. The influence of the soft soil modulus of elasticity on the neutral point depth was also performed by finite elements. This depth has a great importance for the definition of the total length of rigid inclusion. (Author)

  6. Tissue tests

    NARCIS (Netherlands)

    Sonneveld, C.; Voogt, W.

    2009-01-01

    Tissue tests are widely used in horticulture practice and have in comparison with soil or substrate testing advantages as well disadvantages in comparison with soil testing. One of the main advantages of tissue tests is the certainty that analysed nutrients in plant tissues are really present in the

  7. Test chamber

    NARCIS (Netherlands)

    Leferink, Frank Bernardus Johannes

    2009-01-01

    A test chamber for measuring electromagnetic radiation emitted by an apparatus to be tested or for exposing an apparatus to be tested to an electromagnetic radiation field. The test chamber includes a reverberation chamber made of a conductive tent fabric. To create a statistically uniform field in

  8. Test chamber

    NARCIS (Netherlands)

    Leferink, Frank Bernardus Johannes

    1999-01-01

    A test chamber for measuring electromagnetic radiation emitted by an apparatus to be tested or for exposing an apparatus to be tested to an electromagnetic radiation field. The test chamber includes a reverberation chamber made of a conductive tent fabric. To create a statistically uniform field in

  9. Tensile testing

    CERN Document Server

    2004-01-01

    A complete guide to the uniaxial tensile test, the cornerstone test for determining the mechanical properties of materials: Learn ways to predict material behavior through tensile testing. Learn how to test metals, alloys, composites, ceramics, and plastics to determine strength, ductility and elastic/plastic deformation. A must for laboratory managers, technicians, materials and design engineers, and students involved with uniaxial tensile testing. Tensile Testing , Second Edition begins with an introduction and overview of the test, with clear explanations of how materials properties are determined from test results. Subsequent sections illustrate how knowledge gained through tensile tests, such as tension properties to predict the behavior (including strength, ductility, elastic or plastic deformation, tensile and yield strengths) have resulted in improvements in materals applications. The Second Edition is completely revised and updated. It includes expanded coverage throughout the volume on a variety of ...

  10. Determination of the geothermal well damage from its production tests; Determinacion del dano en pozos geotermicos a partir de sus pruebas de produccion

    Energy Technology Data Exchange (ETDEWEB)

    Aragon Aguilar, Alfonso; Izquierdo Montalvo, Georgina; Arellano Gomez, Victor [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2011-06-13

    In this work the evolution is described that undergoes the factor of damage in a well during its productive stage, which is identifiable from the diminution in the characteristics of its production. It is mentioned that during the productive stage of wells, its declination is, in many occasions, synonymous of the damage presence. Traditionally, the damage effect is determined from the equations for analysis of the transitory tests of pressure. Nevertheless, the execution of this type of tests requires relatively long periods of time to obtain the stabilization of the well and of significant costs. By the previous facts the development of techniques to determine the damage from production tests was initiated. In this article is presented the curve-type of geothermal inflow affected by the damage, from which the value of this one in a geothermal well for the time in which its test of production is realized can be determined. A methodology is proposed to determine the damage effect in the well using the proposed curve-type and its applicability with examples of test measurements of well discharge is demonstrated in Mexican geothermal fields. From the conducted analyses it is found that the numerical value of the damage determined in selected wells increases based on the time of exploitation, which indicates a deterioration of its productive characteristics. The previous statements aid to constitute a technical endorsement for the decision making, on the pertinent actions that can be executed in the well. [Spanish] En este trabajo se describe la evolucion que sufre el factor de dano en un pozo durante su etapa productiva, el cual es identificable a partir de la disminucion en las caracteristicas de su produccion. Se menciona que durante la etapa productiva de los pozos, su declinacion es, en muchas ocasiones, sinonimo de la presencia de dano. Tradicionalmente, el efecto de dano se determina a partir de las ecuaciones para analisis de las pruebas transitorias de presion

  11. Nationale test

    DEFF Research Database (Denmark)

    2009-01-01

    Professor Sven Erik Nordenbo og centerleder Niels Egelund, begge DPU, i samtale om nationale test.......Professor Sven Erik Nordenbo og centerleder Niels Egelund, begge DPU, i samtale om nationale test....

  12. Magnesium Test

    Science.gov (United States)

    ... Tests G6PD Gamma-Glutamyl Transferase (GGT) Gastrin Gastrointestinal Pathogens Panel Genetic Tests for Targeted Cancer Therapy Glucose ... as spinach, as well as whole grains and nuts. Foods that have dietary fiber are usually also ...

  13. Copper Test

    Science.gov (United States)

    ... Tests G6PD Gamma-Glutamyl Transferase (GGT) Gastrin Gastrointestinal Pathogens Panel Genetic Tests for Targeted Cancer Therapy Glucose ... hepatic). Copper is found in many foods including nuts, chocolate, mushrooms, shellfish, whole grains, dried fruits, and ...

  14. Osmolality Test

    Science.gov (United States)

    ... Serum Screening, Second Trimester Measles and Mumps Tests Mercury Metanephrines Methotrexate Methylmalonic Acid Mononucleosis (Mono) Test MRSA ... Juvenile Rheumatoid Arthritis Kidney Disease Lactose Intolerance Lead Poisoning Leukemia Liver Disease Lung Cancer Lung Diseases Lupus ...

  15. Bilirubin Test

    Science.gov (United States)

    ... bilirubin test in conjunction with other laboratory tests ( alkaline phosphatase , aspartate aminotransferase , alanine aminotransferase ) when someone shows signs of abnormal liver function. A bilirubin level may be ordered when ...

  16. Gonorrhea Test

    Science.gov (United States)

    ... High-sensitivity C-reactive Protein (hs-CRP) Histamine Histone Antibody HIV Antibody and HIV Antigen (p24) HIV ... can get tested. You can input your zip code and find a local testing site. How can ...

  17. Syphilis Test

    Science.gov (United States)

    ... High-sensitivity C-reactive Protein (hs-CRP) Histamine Histone Antibody HIV Antibody and HIV Antigen (p24) HIV ... can get tested. You can input your zip code and find a local testing site. Should I ...

  18. Trichomonas Testing

    Science.gov (United States)

    ... Known As T. vaginalis Wet Prep Formal Name Trichomonas vaginalis testing This article was last reviewed on March ... Tested? To diagnose an infection with the parasite Trichomonas vaginalis , which causes the sexually transmitted disease trichomoniasis When ...

  19. Chymotrypsin Test

    Science.gov (United States)

    ... Sex Hormone Binding Globulin (SHBG) Shiga toxin-producing Escherichia coli Sickle Cell Tests Sirolimus Smooth Muscle Antibody (SMA) ... at http://www.upcmd.com/dot/examples/00218/description.html. Sainato, D., (2002, March). Genetic Testing for ...

  20. ACT Test

    Science.gov (United States)

    ... Content View Sources Ask Us Also Known As ACT Activated Coagulation Time Formal Name Activated Clotting Time ... What is being tested? The activated clotting time (ACT) is a test that is used primarily to ...

  1. Rubella Test

    Science.gov (United States)

    ... AACC products and services. Advertising & Sponsorship: Policy | Opportunities Rubella Test Share this page: Was this page helpful? ... Three-day Measles; 3-day Measles Formal name: Rubella Antibodies, IgM and IgG Related tests: TORCH ; Measles ...

  2. Gonorrhea Test

    Science.gov (United States)

    ... Links Patient Resources For Health Professionals Subscribe Search Gonorrhea Testing Send Us Your Feedback Choose Topic At ... Sources Ask Us Also Known As GC Test Gonorrhea NAAT or NAT Neisseria gonorrhoeae Nucleic Acid Amplification ...

  3. Ferritin Test

    Science.gov (United States)

    ... Pregnancy hCG Tumor Marker HDL Cholesterol Heavy Metals Helicobacter pylori Testing Hematocrit Hemoglobin Hemoglobin A1c Hemoglobinopathy Evaluation ... absorbs too much iron, even on a normal diet. How is the sample collected for testing? A ...

  4. AMA Test

    Science.gov (United States)

    ... Testing Leptin Levetiracetam Lipase Lipid Profile Lipoprotein (a) Lithium Liver Panel Lp-PLA2 Lupus Anticoagulant Testing Luteinizing ... 50% of the cases of PBC will be discovered before a person has noticeable symptoms. What causes ...

  5. Lactate Test

    Science.gov (United States)

    ... Hormone Binding Globulin (SHBG) Shiga toxin-producing Escherichia coli Sickle Cell Tests Sirolimus Smooth Muscle Antibody (SMA) ... Ratio Valproic Acid Vancomycin Vanillylmandelic Acid (VMA) VAP Vitamin A Vitamin B12 and Folate Vitamin D Tests ...

  6. Allergy Testing

    Science.gov (United States)

    ... treatment. These include: allergy screening tests done in supermarkets or drug stores, home testing, applied kinesiology (allergy ... this topic visit the AAAAI Store . Utility navigation Donate Annual meeting Browse your conditions Check pollen counts ...

  7. Progesterone Test

    Science.gov (United States)

    ... Urine Culture Urine Metanephrines Urine Protein and Urine Protein to Creatinine Ratio Valproic Acid Vancomycin Vanillylmandelic Acid (VMA) VAP Vitamin A Vitamin B12 and Folate Vitamin D Tests Vitamin K VLDL Cholesterol von Willebrand Factor Warfarin Sensitivity Testing ...

  8. Rubella Test

    Science.gov (United States)

    ... of the blood testing required to obtain a marriage license. What does the test result mean? Adult ... their joints , especially their hands and wrists. Side effects are rarely seen in young children who get ...

  9. Fungal Tests

    Science.gov (United States)

    ... Testing Leptin Levetiracetam Lipase Lipid Profile Lipoprotein (a) Lithium Liver Panel Lp-PLA2 Lupus Anticoagulant Testing Luteinizing ... at http://www.thoracic.org/education/breathing-in-america/resources/chapter-9-fungal-lung-disease.pdf. Accessed ...

  10. VMA Test

    Science.gov (United States)

    ... spasms and rapid eye movements referred to as "dancing eyes, dancing feet." The VMA test may also be ordered ... ratio is associated with a poorer prognosis . A variety of medications can interfere with VMA testing, but ...

  11. DHEAS Test

    Science.gov (United States)

    ... Acidosis and Alkalosis Adrenal Insufficiency and Addison Disease Alcoholism Allergies Alzheimer Disease Anemia Angina Ankylosing Spondylitis Anthrax ... for Teens (Ages 13-18) Screening Tests for Young Adults (Ages 19-29) Screening Tests for Adults ( ...

  12. Pregnancy test

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003432.htm Pregnancy test To use the sharing features on this page, please enable JavaScript. A pregnancy test measures a hormone in the body called human ...

  13. Nationale Test

    DEFF Research Database (Denmark)

    2009-01-01

    Hvad er egentlig formålet med de nationale test? Bliver eleverne klogere af at blive testet? Og er der en sammenhæng mellem bandekrig og nationale test? Fysisk medie: dpu.dk/tv......Hvad er egentlig formålet med de nationale test? Bliver eleverne klogere af at blive testet? Og er der en sammenhæng mellem bandekrig og nationale test? Fysisk medie: dpu.dk/tv...

  14. HIV Testing

    Science.gov (United States)

    ... Abroad Treatment Basic Statistics Get Tested Find an HIV testing site near you. Enter ZIP code or city Follow HIV/AIDS CDC HIV CDC HIV/AIDS See RSS | ... All Collapse All Should I get tested for HIV? CDC recommends that everyone between the ages of ...

  15. Testing Interfaces

    DEFF Research Database (Denmark)

    Holbøll, Joachim T.; Henriksen, Mogens; Nilson, Jesper K.

    1999-01-01

    , destroy the insulation and eventually cause breakdown. It is difficult to make a model of the real-life components that can be used to examine all of these phenomena. Some decisions have to be made on how to approach this problem, how to design a test cell and how the tests should be carried out....... In this paper, four suggestions on test cells are considered....

  16. Trypsinogen test

    Science.gov (United States)

    ... like immunoreactivity; Serum trypsinogen; Immunoreactive trypsin Images Blood test References Forsmark CE. Chronic pancreatitis. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal ...

  17. Nationale test

    DEFF Research Database (Denmark)

    Bundsgaard, Jeppe; Puck, Morten Rasmus

    Nationale test skubber undervisning i en forkert retning. Det er lærerne og skolelederne enige om. Men særligt skolelederne ser også muligheder for at bruge testen til at få viden om elevernes faglige kompetencer og om undervisningen. Det kommer til udtryk i rapporten Nationale test: Danske lærere...

  18. Chloride Test

    Science.gov (United States)

    ... and bicarbonate , to help regulate the amount of fluid in the body and maintain the acid-base balance . This test measures the level of chloride in ... and bicarbonate , to help regulate the amount of fluid in the body and maintain the acid-base (pH) balance . Chloride and electrolyte tests may also be ordered ...

  19. Runflat Testing

    Science.gov (United States)

    2015-09-09

    the valve cores using a valve core removal tool to simulate a puncture flat. This should be done at the test site, after the tires are warmed up...F), and ideally be as close to the SAE standard temperature of 25 °C (77 °F) as possible. Test conditions should also be dry (no precipitation or

  20. Test Anxiety

    Science.gov (United States)

    ... on the bad things that could happen also fuels test anxiety. For example, someone worrying about doing poorly ... are shaking." Just like other types of anxiety, test anxiety can create a bad cycle: The more a person focuses on the negative ...

  1. Blood Tests

    Science.gov (United States)

    ... be a sign of anemia or thalassemia. Blood Chemistry Tests/Basic Metabolic Panel The basic metabolic panel ( ... parents, and children talk about their experiences with clinical research. More Information Related Health Topics Anemia Coronary Heart ...

  2. Pertussis Tests

    Science.gov (United States)

    ... Factor Antibody Iron Iron Tests JAK2 Mutation Kidney Stone Analysis Kidney Stone Risk Panel KRAS Mutation Lactate Lactate Dehydrogenase (LD) ... whooping cough); when you have symptoms of a cold and have been exposed to someone with pertussis ...

  3. TORCH Test

    Science.gov (United States)

    ... Factor Antibody Iron Iron Tests JAK2 Mutation Kidney Stone Analysis Kidney Stone Risk Panel KRAS Mutation Lactate Lactate Dehydrogenase (LD) ... The two most common infections with HSV are "cold sores" affecting the lips and genital herpes. Both ...

  4. Toxoplasmosis Testing

    Science.gov (United States)

    ... eye or brain infection that a health practitioner suspects are due to toxoplasmosis Sample Required? A blood ... to an infection or detects the genetic material ( DNA ) of the parasite in the blood. Testing is ...

  5. RPR test

    Science.gov (United States)

    ... later stages of the infection. Some conditions may cause a false-positive test, including: IV drug use Lyme disease Certain types of pneumonia Malaria Pregnancy Systemic lupus erythematosus and some other autoimmune ...

  6. VDRL test

    Science.gov (United States)

    ... the earlier and later stages. Some conditions may cause a false-positive test, including: HIV Lyme disease Certain types of pneumonia Malaria Systemic lupus erythematosus The body does not always ...

  7. Test Ship

    Data.gov (United States)

    Federal Laboratory Consortium — The U. S. Navy dedicated the decommissioned Spruance Class destroyer ex-PAUL F. FOSTER (EDD 964), Test Ship, primarily for at sea demonstration of short range weapon...

  8. HPV Test

    Science.gov (United States)

    ... detects the presence of HPV, the virus that causes cervical cancer, in your system. Certain types of HPV — including ... have any of the types of HPV that cause cervical cancer. Depending on your test results, your doctor may ...

  9. Blood Tests

    Science.gov (United States)

    ... of Intramural Research Research Resources Research Meeting Summaries Technology Transfer Clinical Trials What Are Clinical Trials? Children & ... special preparations. For some, you may need to fast (not eat any food) for 8 to 12 hours before the test. ...

  10. Lactate Test

    Science.gov (United States)

    ... Analysis Kidney Stone Risk Panel KRAS Mutation Lactate Lactate Dehydrogenase (LD) Lactoferrin Lactose Tolerance Tests LDL Cholesterol LDL ... metabolism) in which pyruvate is not converted to lactate. One example is pyruvate dehydrogenase deficiency. In these cases, pyruvate will accumulate, the ...

  11. Serotonin Test

    Science.gov (United States)

    ... acute myocardial infarction ( heart attack ), cystic fibrosis , and dumping syndrome . The serotonin test is not usually ordered ... Thank you. Contact a Scientist Find Us On Social Media: Facebook Twitter Google Plus Footer Menu Home ...

  12. IQ testing

    Science.gov (United States)

    ... person's talents or future potential. Results of any intelligence test may be culturally biased. The more widely used ... Preschool and Primary Scale of Intelligence Stanford-Binet Intelligence ... mathematical, analytical, spatial (for example, reading ...

  13. Electrolytes Test

    Science.gov (United States)

    ... High-sensitivity C-reactive Protein (hs-CRP) Histamine Histone Antibody HIV Antibody and HIV Antigen (p24) HIV ... www.mayomedicallaboratories.com/test-catalog/print.php?unit_code=87972. Accessed September 2011. See More See Less ...

  14. VMA Test

    Science.gov (United States)

    ... Total Protein and Albumin/Globulin (A/G) Ratio Toxoplasmosis Testing Trace Minerals Transferrin and Iron-binding Capacity ( ... Blood in Urine (Hematuria) Bone Marrow Disorders Breast Cancer Cancer Cardiovascular Disease Celiac Disease Cervical Cancer Chronic ...

  15. VLDL test

    Science.gov (United States)

    ... disease . This test may be included in a coronary risk profile. ... cholesterol level may be associated with a higher risk for heart disease and stroke. However, VLDL cholesterol level is rarely targeted when treatment for high ...

  16. Test report :

    Energy Technology Data Exchange (ETDEWEB)

    Rose, David Martin; Schenkman, Benjamin L.; Borneo, Daniel R.

    2013-08-01

    The Department of Energy Office of Electricity (DOE/OE), Sandia National Laboratory (SNL) and the Base Camp Integration Lab (BCIL) partnered together to incorporate an energy storage system into a microgrid configured Forward Operating Base to reduce the fossil fuel consumption and to ultimately save lives. Energy storage vendors have supplied their systems to SNL Energy Storage Test Pad (ESTP) for functional testing and a subset of these systems were selected for performance evaluation at the BCIL. The technologies tested were electro-chemical energy storage systems comprised of lead acid, lithium-ion or zinc-bromide. MILSPRAY Military Technologies has developed an energy storage system that utilizes lead acid batteries to save fuel on a military microgrid. This report contains the testing results and some limited assessment of the Milspray Scorpion Energy Storage Device.

  17. Iron Test

    Science.gov (United States)

    ... Pregnancy hCG Tumor Marker HDL Cholesterol Heavy Metals Helicobacter pylori Testing Hematocrit Hemoglobin Hemoglobin A1c Hemoglobinopathy Evaluation ... not enough iron is taken in from the diet, blood levels will drop; thus, over time, the ...

  18. Magnesium Test

    Science.gov (United States)

    ... Pregnancy hCG Tumor Marker HDL Cholesterol Heavy Metals Helicobacter pylori Testing Hematocrit Hemoglobin Hemoglobin A1c Hemoglobinopathy Evaluation ... bones. It comes into the body through the diet and is absorbed by the small intestine and ...

  19. Phosphorus Test

    Science.gov (United States)

    ... Pregnancy hCG Tumor Marker HDL Cholesterol Heavy Metals Helicobacter pylori Testing Hematocrit Hemoglobin Hemoglobin A1c Hemoglobinopathy Evaluation ... balance . Phosphorus comes into the body through the diet. It is found in many foods and is ...

  20. Toxoplasmosis Testing

    Science.gov (United States)

    ... Pregnancy hCG Tumor Marker HDL Cholesterol Heavy Metals Helicobacter pylori Testing Hematocrit Hemoglobin Hemoglobin A1c Hemoglobinopathy Evaluation ... humid locations and is influenced by the regional diet. It is higher in areas that routinely eat ...

  1. PTT Test

    Science.gov (United States)

    ... Pregnancy hCG Tumor Marker HDL Cholesterol Heavy Metals Helicobacter pylori Testing Hematocrit Hemoglobin Hemoglobin A1c Hemoglobinopathy Evaluation ... but can occur due to an extremely poor diet, malabsorption disorders , or prolonged use of certain antibiotics, ...

  2. Copper Test

    Science.gov (United States)

    ... Pregnancy hCG Tumor Marker HDL Cholesterol Heavy Metals Helicobacter pylori Testing Hematocrit Hemoglobin Hemoglobin A1c Hemoglobinopathy Evaluation ... or trying to get more copper in my diet? In most cases, a regular diet satisfies the ...

  3. Chloride Test

    Science.gov (United States)

    ... Sex Hormone Binding Globulin (SHBG) Shiga toxin-producing Escherichia coli Sickle Cell Tests Sirolimus Smooth Muscle Antibody (SMA) ... 20Files/Nutrition/DRIs/DRI_Electrolytes_Water.pdf?la=en. Accessed Oct 2015. Sources Used in Previous Reviews ...

  4. RSV Test

    Science.gov (United States)

    ... Sex Hormone Binding Globulin (SHBG) Shiga toxin-producing Escherichia coli Sickle Cell Tests Sirolimus Smooth Muscle Antibody (SMA) ... int/immunization/research/meetings_workshops/rsv_vaccine_development/en/. Accessed November 2016. Sources Used in Previous Reviews ...

  5. Malnutrition Tests

    Science.gov (United States)

    ... Sex Hormone Binding Globulin (SHBG) Shiga toxin-producing Escherichia coli Sickle Cell Tests Sirolimus Smooth Muscle Antibody (SMA) ... www.who.int/vaccine_research/diseases/soa_parasitic/en/index2.html through http://www.who.int . Accessed ...

  6. Knowledge Test

    DEFF Research Database (Denmark)

    Sørensen, Ole Henning

    1998-01-01

    The knowledge test is about competing temporal and spatial expressions of the politics of technological development and national prosperity in contemporary society. The discussion is based on literature of national systems of innovation and industrial networks of various sorts. Similarities...

  7. Electrolytes Test

    Science.gov (United States)

    ... Pregnancy hCG Tumor Marker HDL Cholesterol Heavy Metals Helicobacter pylori Testing Hematocrit Hemoglobin Hemoglobin A1c Hemoglobinopathy Evaluation ... sometimes reported as total CO 2 ). A person's diet provides sodium, potassium, and chloride. The kidneys help ...

  8. Osmolality Test

    Science.gov (United States)

    ... affecting osmolality; to help determine the cause of chronic diarrhea When To Get Tested? When someone has a ... increased or decreased amounts of urine, or has chronic diarrhea Sample Required? A blood sample drawn from a ...

  9. Lead Test

    Science.gov (United States)

    ... Links Patient Resources For Health Professionals Subscribe Search Lead Send Us Your Feedback Choose Topic At a ... Related Content View Sources Also Known As Blood Lead Test Blood Lead Level BLL Formal Name Lead, ...

  10. Porphyrin Tests

    Science.gov (United States)

    ... safe and unsafe drugs, different sites use different classifications and the lists are not the same. Why ... Kathleen D. & Pagana, Timothy J. (2001). M osby's Diagnostic and Laboratory Test Reference 5th Edition: Mosby, Inc., ...

  11. Tests computarizados

    Directory of Open Access Journals (Sweden)

    R. Fernando Prialé Z.

    1983-12-01

    Full Text Available En primer lugar, se considera el impacto de las microcomputadoras en la actualidad, viéndolo como un hecho social destinado a traer profundos cambios: nos orientamos hacia una cultura informática cuyo signo es la posibilidad de tratar grandes cantidades de información. En segundo lugar; se analiza brevemente la importancia de los tests en el desarrollo de la psicología. Finalmente, se discute la posibilidad de aplicar la informática a la psicometría con el ejemplo del test de BARSIT.   The impact of microcomputers is discussed as a cultural fact that will bring profound changes in the near future: a society with an ubiquous capacity for treating big amounts of information. The importance of tests for the development of psychology is then analysed. Finaly, the possibility of applying microcomputers to psychometry is discussed trough a concrete example: The BARSIT test.

  12. Stool Tests

    Science.gov (United States)

    ... Development Infections Diseases & Conditions Pregnancy & Baby Nutrition & Fitness Emotions & Behavior School & Family Life First Aid & Safety Doctors & ... stool. Collecting a Stool Specimen Unlike most other lab tests, stool is sometimes collected by the child's ...

  13. Porphyrin Tests

    Science.gov (United States)

    ... LA Kaplan, AJ Pesce, SC Kazmierczak, Eds), CV Mosby, St. Louis, 2003, pp. 657-674. Pagana, Kathleen ... osby's Diagnostic and Laboratory Test Reference 5th Edition: Mosby, Inc., Saint Louis, MO. Pp325, 670-672. (2003 ...

  14. Fibrinogen Test

    Science.gov (United States)

    ... an investigation of a possible bleeding disorder or inappropriate blood clot formation ( thrombotic episode ) As a follow- ... More Common Questions See Less Common Questions Related Content On This Site Tests: PT and INR , PTT , ...

  15. ACT Test

    Science.gov (United States)

    ... heparin is used to help prevent and treat inappropriate blood clot formation ( thrombosis or thromboembolism ) and is ... More Common Questions See Less Common Questions Related Content On This Site Tests: Partial Thromboplastin Time (PTT) , ...

  16. PTH Test

    Science.gov (United States)

    ... diseases that disrupt this feedback loop can cause inappropriate elevations or decreases in calcium and PTH levels ... More Common Questions See Less Common Questions Related Content On This Site Tests: Calcium ; Phosphorus ; Magnesium ; Vitamin ...

  17. Ferritin Test

    Science.gov (United States)

    ... the past few decades, some lab-to-lab variability can occur due to differences in testing equipment, ... Pp 443-444. Clarke, W., Editor (© 2011). Contemporary Practice in Clinical Chemistry 2nd Edition: AACC Press, Washington, ...

  18. AMA Test

    Science.gov (United States)

    ... This Site Tests: ANCA/MPO/PR3 Antibodies , Liver/Kidney Microsomal Antibody , ALP , ALT , Liver Panel , Smooth Muscle Antibody , ANA Conditions: Autoimmune Diseases , Liver Disease , Hepatitis , Cirrhosis Elsewhere On The Web ...

  19. Adaptive test

    DEFF Research Database (Denmark)

    Kjeldsen, Lars Peter; Eriksen, Mette Rose

    2010-01-01

    Artikelen er en evaluering af de adaptive tests, som blev indført i folkeskolen. Artiklen sætter særligt fokus på evaluering i folkeskolen, herunder bidrager den med vejledning til evaluering, evalueringsværktøjer og fagspecifkt evalueringsmateriale.......Artikelen er en evaluering af de adaptive tests, som blev indført i folkeskolen. Artiklen sætter særligt fokus på evaluering i folkeskolen, herunder bidrager den med vejledning til evaluering, evalueringsværktøjer og fagspecifkt evalueringsmateriale....

  20. Power factor correction at the Miguel Hidalgo refinery; Correccion del factor de potencia en la refineria Miguel Hidalgo

    Energy Technology Data Exchange (ETDEWEB)

    Dominguez Gonzalez, Gustavo [Petroleos Mexicanos, Refineria Miguel Hidalgo, Tula de Allende (Mexico)

    1992-12-31

    In this paper the theoretical fundament and formulae of the power factor are analyzed and a relationship among kilowatts, kilovars and power factor, is shown; also it deals with power factor in combination with load groups, as well as the numerical calculation of the required kvar for the desired improvement of the power factor. Additionally the technical and economical aspects of the capacitors and synchronous motors are contemplated, as well as their location in the electric system in order to achieve the maximum benefits. Finally, the savings obtained with the installation of capacitors in the electric power system of the Miguel Hidalgo refinery, are explained. [Espanol] En el presente trabajo se analizan los fundamentos teoricos y formulas del factor de potencia y se muestra la relacion entre kilowatts, kilovars y factor de potencia; tambien trata al factor de potencia combinado de grupos de cargas, asi como el calculo numerico de los KVAR necesarios para la mejora deseada del factor de potencia. Ademas se contemplan aspectos tecnicos y economicos de los capacitores y los motores sincronos, asi como la ubicacion de los mismos en el sistema electrico para lograr los maximos beneficios. Finalmente se explican las ganancias economicas que se obtuvieron al instalarse capacitores en el sistema electrico de potencia de la refineria Miguel Hidalgo.

  1. Screening Tests

    Science.gov (United States)

    ... gov/publications/AssessingAlcohol/index.htm .) This issue of Alcohol Research & Health highlights some of the most popular screening ... tolerance to more than two drinks (the T question) = 2 points. The Alcohol Use Disorders Identification Test (AUDIT) can detect alcohol ...

  2. About testing $\

    CERN Document Server

    Loverre, P F; Spada, F R

    1999-01-01

    We study the feasibility of a long-baseline neutrino experiment from CERN to Gran Sasso LNGS Laboratories using the CERN PS accelerator. Baseline and neutrino energy spectrum are suitable to explore a region of the Dm2 and sin2(thetat) parameters space which is not reached by K2K, the first experiment that will test at accelerator the atmospheric neutrino anomaly put in evidence by Super Kamiokande

  3. Oedometer Tests

    DEFF Research Database (Denmark)

    Thorsen, Grete

    1996-01-01

    . The results, however, tell nothing about the kind of actions, which has caused the overconsolidation. The determined OCR-values might be due to previous ice caps but a big difference in the two values from Solsø indicates a considerable influence from other actions. The sediments from Hollerup and Solsø...... a model set up by Moust Jacobsen in 1992. The test results do not show any significant difference in the determined values of the overconsolidation ratio (OCR) for the samples from Hollerup and Solsø, east and west of the main stationary line for the last ice sheet in Weichselian, respectively...

  4. Heart failure - tests

    Science.gov (United States)

    CHF - tests; Congestive heart failure - tests; Cardiomyopathy - tests; HF - tests ... the best test to: Identify which type of heart failure (systolic, diastolic, valvular) Monitor your heart failure and ...

  5. Cholesterol testing and results

    Science.gov (United States)

    Cholesterol test results; LDL test results; VLDL test results; HDL test results; Coronary risk profile results; Hyperlipidemia-results; Lipid disorder test results; Heart disease - cholesterol results

  6. Nuclear stress test

    Science.gov (United States)

    ... Persantine stress test; Thallium stress test; Stress test - nuclear; Adenosine stress test; Regadenoson stress test; CAD - nuclear stress; Coronary artery disease - nuclear stress; Angina - nuclear ...

  7. Heliostat tested

    Science.gov (United States)

    1984-12-01

    An enormous glint of sunlight darted over gently sloping summits and the hairpin curves of the mountain road. Mirrors concentrated this glint into a single beam, which then shot through a thick sheet of aluminum. Such was the result of the first test run on heliostats of the unique Solntse scientific-production complex being erected in Tashkent Oblast. There will be 62 such heliostats, each with an area of 50 square meters. Hot beams will be transmitted to the concave mirror of a concentrator (2,000 square meters). And the glint that shoots from it effortlessly melts not only aluminum but also almost all known materials. A special melting furnace toward which the concentractor directs hundreds of kilowatts of energy, burns brighter than a thousand suns. The complex presently under construction is intended for acquisition of ultrahigh-heat and concurrently ultrapure materials needed by many industrial sectors. This is extremely difficult to do by traditional chemical methods and even by the most modern methods--ultrahigh frequency and cathode ray methods.

  8. Mononucleosis spot test

    Science.gov (United States)

    Monospot test; Heterophile antibody test; Heterophile agglutination test; Paul-Bunnell test; Forssman antibody test ... The mononucleosis spot test is done when symptoms of mononucleosis are ... Fatigue Fever Large spleen (possibly) Sore throat Tender ...

  9. Coccidioides precipitin test

    Science.gov (United States)

    Coccidioidomycosis antibody test; Coccidioides blood test; Valley fever blood test ... There is no special preparation for the test. ... The precipitin test is one of several tests that can be done to determine if you are infected with coccidioides, which ...

  10. Myoglobin urine test

    Science.gov (United States)

    Urine myoglobin; Heart attack - myoglobin urine test; Myositis - myoglobin urine test; Rhabdomyolysis - myoglobin urine test ... The test involves only normal urination, which should cause no discomfort.

  11. Test Review: TestDaF

    Science.gov (United States)

    Norris, John; Drackert, Anastasia

    2018-01-01

    The Test of German as a Foreign Language (TestDaF) plays a critical role as a standardized test of German language proficiency. Developed and administered by the Society for Academic Study Preparation and Test Development (g.a.s.t.), TestDaF was launched in 2001 and has experienced persistent annual growth, with more than 44,000 test takers in…

  12. Helicobacter pylori Test

    Science.gov (United States)

    ... Content Related Images View Sources Also Known As H. pylori antibody test, stool antigen, breath tests Urea breath test CLO test Rapid urease test (RUT) for H. pylori Formal Name Helicobacter pylori This article was last ...

  13. What Is Diagnostic Testing?

    Science.gov (United States)

    ... you want to learn. Search form Search Diagnostic testing You are here Home Testing & Services Testing for ... help you make the decision. What Is Diagnostic Testing? Diagnostic genetic testing can usually work out if ...

  14. Tests Related to Pregnancy

    Science.gov (United States)

    ... what you want to learn. Search form Search Tests related to pregnancy You are here Home Testing & Services Testing for ... Genes: A Guide to Genetic Counseling . What Are Tests Related to Pregnancy? Pregnancy related testing is done before or during ...

  15. HCG blood test - quantitative

    Science.gov (United States)

    ... blood test - quantitative; Beta-HCG blood test - quantitative; Pregnancy test - blood - quantitative ... of a screening test for Down syndrome. This test is also done to diagnose abnormal conditions not related to pregnancy that can raise HCG level.

  16. Design Driven Testing Test Smarter, Not Harder

    CERN Document Server

    Stephens, M

    2010-01-01

    The groundbreaking book Design Driven Testing brings sanity back to the software development process by flipping around the concept of Test Driven Development (TDD) - restoring the concept of using testing to verify a design instead of pretending that unit tests are a replacement for design. Anyone who feels that TDD is "Too Damn Difficult" will appreciate this book. Design Driven Testing shows that, by combining a forward-thinking development process with cutting-edge automation, testing can be a finely targeted, business-driven, rewarding effort. In other words, you'll learn how to test

  17. Learning software testing with Test Studio

    CERN Document Server

    Madi, Rawane

    2013-01-01

    Learning Software Testing with Test Studio is a practical, hands-on guide that will help you get started with Test Studio to design your automated solution and tests. All through the book, there are best practices and tips and tricks inside Test Studio which can be employed to improve your solution just like an experienced QA.If you are a beginner or a professional QA who is seeking a fast, clear, and direct to the point start in automated software testing inside Test Studio, this book is for you. You should be familiar with the .NET framework, mainly Visual Studio, C#, and SQL, as the book's

  18. Compositional Testing with ioco

    NARCIS (Netherlands)

    Petrenko, A.; van der Bijl, H.M.; Rensink, Arend; Ulrich, A.; Tretmans, G.J.

    2004-01-01

    Abstract. Compositional testing concerns the testing of systems that consist of communicating components which can also be tested in isolation. Examples are component based testing and interoperability testing. We show that, with certain restrictions, the ioco-test theory for conformance testing is

  19. Empleo de metodos numericos para el ajuste de los coeficientes de difusividad (D) y convectivo de transferencia de masa (hm) en el secado de alimentos

    OpenAIRE

    Arranz Saiz, Francisco Javier; Correa Hernando, Eva Cristina; Jiménez Ariza, Heidi Tatiana; Diezma Iglesias, Belen; Garcia-Herrero, Javier; Robla Villalba, José Ignacio; Barreiro Elorza, Pilar

    2011-01-01

    Los modelos matemáticos de transferencia de humedad desde el alimento al medio circundante durante el proceso de secado dependen de dos parámetros: coeficiente de difusividad efectiva D y coeficiente convectivo de transferencia de masa hm, cuya determinación experimental se basa en la consideración de un sistema difusivo sencillo de solución analítica bien conocida. Para el caso, que aquí nos ocupa, de difusión monodimensional en una lámina infinita de grosor 2l, la solución analítica de ...

  20. Numerical study of the time evolution of a wave packet in quantum mechanics. Estudio numerico de la evolucion de un paquete de ondas en mecanica cuantica

    Energy Technology Data Exchange (ETDEWEB)

    Segura, J.; Fernandez de Cordoba, P.

    1993-01-01

    We solve the Schrodinger equation in order to study the time evolution of a wave packet in different situations of physical interest. This work illustrates, with pedagogical aim, some quantum phenomena which shock our classical conception of the universe: propagation in classically forbidden regions, energy quantization. (Author)

  1. Use of Lagrange interpolating numerical method to correct solar databases; Utilizacao do metodo numerico interpolador de Lagrange para correcao de bases de dados de radiometria solar

    Energy Technology Data Exchange (ETDEWEB)

    Penteado, Miguel Suarez Xavier [Pos-Graduacao em Agronomia - Energia na Agricultura, FCA UNESP - Botucatu, SP (Brazil), Dept. de Recursos Naturais], e-mail: miguel_penteado@fca.unesp.br; Escobedo, Joao Francisco [Dept. de Recursos Naturais, FCA/UNESP, Botucatu, SP (Brazil)], e-mail: escobedo@fca.unesp.br; Dal Pai, Alexandre [Faculdade de Tecnologia de Botucatu - FATEC, Botucatu, SP (Brazil)], e-mail: adalpai@fatecbt.edu.br

    2011-07-01

    This work explores the suitability of the Lagrange interpolating polynomial as a tool to estimate and correct solar databases. From the knowledge of the irradiance distribution over a day, portion of it was removed for applying Lagrange interpolation polynomial. After generation of the estimates by interpolation, the assessment was made by MBE and Rms statistical indicators. The application of Lagrange interpolating generated the following results: underestimation of 0.27% (MBE = -1.83 W/m{sup 2}) and scattering of 0.51% (Rms = 3.48 W/m{sup 2}). (author)

  2. Numerical analysis on reduction of radioactive actinides by recycling of nuclear fuel; Analisis numerico sobre reduccion de actinidos radiactivos por reciclado de combustible nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Balboa L, H. E.

    2014-07-01

    Worldwide, human growth has reached unparalleled levels historically, this implies a need for more energy, and just in 2007 was consumed in the USA 4157 x 10{sup 9} kWh of electricity and there were 6 x 10{sup 9} metric tons of carbon dioxide, which causes a devastating effect on our environment. To this problem, a solution to the demand for non-fossil energy is nuclear energy, which is one of the least polluting and the cheapest among non-fossil energy; however, a problem remains unresolved the waste generation of nuclear fuels. In this work the option of a possible transmutation of actinides in a nuclear reactor of BWR was analyzed, an example of this are the nuclear reactors at the Laguna Verde nuclear power plant, which have generated spent fuel stored in pools awaiting a decision for final disposal or any other existing alternative. Assuming that the spent fuel was reprocessed to separate useful materials and actinides such as plutonium and uranium remaining, could take these actinides and to recycle them inside the same reactor that produced them, so il will be reduced the radiotoxicity of spent fuel. The main idea of this paper is to evaluate by means of numeric simulation (using the Core Management System (CMS)) the reduction of minor actinides in the case of being recycled in fresh fuel of the type BWR. The actinides were introduced hypothetically in the fuel pellets to 6% by weight, and then use a burned in the range of 0-65 G Wd/Tm, in order to have a better panorama of their behavior and thus know which it is the best choice for maximum reduction of actinides. Several cases were studied, that is to say were used as fuels; the UO{sub 2} and MOX. Six different cases were also studied to see the behavior of actinides in different situations. The CMS platform calculation was used for the analysis of the cases presented. Favorable results were obtained, having decreased from a range of 35% to 65% of minor actinides initially introduced in the fuel rods, reducing the radiotoxicity of spent fuel of this way and favoring a possible safe geologic storage with a shorter half-life. (Author)

  3. Application of numerical analysis in personal dosimetry by thermoluminescent; Aplicacion de metodos de analisis numerico en un sistema de dosimetria personal por termoluminiscencia

    Energy Technology Data Exchange (ETDEWEB)

    Gomez Ros, J. M.; Delgado, A.; Fantuzzi, E.

    2003-07-01

    The main features of the methods for computerised glow curve analysis are presented in this communication together with a description of their advantages for TLD in replacement of standard procedures. A protocol for the employment of different kinds of computerised methods for personal dosimetry is proposed. The new results now presented demonstrate the possibility, using a very simple computerised analysis, of working with LiF GR-200 without any pre-heat or annealing simplifying the working procedures, now reduced to the simplest possible: a single step readout up to 240 degree celsius. (Author) 7 refs.

  4. RELIEVE: A FORTRAN 77 program for numerical and graphical processing of digital topographic maps; RELIEVE: Un programa FORTRAN para procesamiento numerico y grafico de mapas topograficos digitalizados

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez, J.J.; Gorostiza, C.

    1995-07-01

    The RELIEVE program was developed in order to its integration with the expert system SIRENAS, in the frame of the Industrial Risks Programme, within the CIEMAT center. For accomplishing this mentioned system, arose the necessity of an additional component enabled for analyzing the topography (relieve) of the territory in which the focused site is located. That is just the mission of the RELIEVE program. Basically RELIEVE analyses the digitalized data points of a determinate topographic area, around a location of interest. The program allows us estimation by numerical techniques, using IMSL library, of the deep width, and other geometrical characteristics of the valley that is involved in. Optionally RELIEVE produces also graphical outputs concerning 3D representation of topographical map, level curves, sections of interest considered in the valley, etc., by means of the DISSPLA II library, running in the IBM system of the CIEMAT. (Author) 5 refs.

  5. Numerical procedure for determining pressure limits on borehole instability problems; Procedimento numerico para determimacao dos limites de pressao em problemas de instabilidade de pocos de petroleo

    Energy Technology Data Exchange (ETDEWEB)

    Muller, A.L. [Pontificia Univ. Catolica do Rio de Janeiro (PUC-Rio), RJ (Brazil). Grupo de Tecnologia em Computacao Grafica (TecGraf); Vargas Junior, E.A. [Pontificia Univ. Catolica do Rio de Janeiro (PUC-Rio), RJ (Brazil). Dept. de Engenharia Civil; Vaz, L.E. [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Escola de Engenharia. Dept. de Mecanica Aplicada e Estruturas; Goncalves, C.J. [PETROBRAS, Rio de Janeiro, RJ (Brazil). Centro de Pesquisas (CENPES)

    2008-07-01

    In the boreholes projects, the minimization of the instability problems is extreme importance. In the boreholes instability analysis, two failure mechanisms are generally considered, namely, failure due to either tensile or compressive stresses. Considering these mechanisms, the correct determination of the lower and upper limits of pressures, generated by the drilling fluid in the walls of the boreholes, is an alternative for minimization of the instability problems. The mechanisms of compression or tensile failure can be described in terms of mechanical and fluid flow responses of the transient fluid mechanical coupling problem. This paper proposes a numerical procedure, using finite elements, of the coupled fluid mechanical processes, for automatically determining the lower and upper limits of pressures on the walls of borehole, to ensure, according assumptions and criteria of failure pre-established, the stability of the same. The automatic obtaining those values has the purpose of replace the approximate obtaining by trial and error processes. A hypothetical example of application is show, and from this, inferred considerations about the proposed procedure. (author)

  6. Engine Test Facility (ETF)

    Data.gov (United States)

    Federal Laboratory Consortium — The Air Force Arnold Engineering Development Center's Engine Test Facility (ETF) test cells are used for development and evaluation testing of propulsion systems for...

  7. Calculations of reactivity based in the solution of the Neutron transport equation in X Y geometry and Lineal perturbation theory; Calculos de reactividad basados en la solucion de la Ecuacion de transporte de neutrones en geometria XY y Teoria de perturbacion lineal

    Energy Technology Data Exchange (ETDEWEB)

    Valle G, E. del; Mugica R, C.A. [IPN, ESFM, Departamento de Ingenieria Nuclear, 07738 Mexico D.F. (Mexico)]. e-mail: cmugica@ipn.mx

    2005-07-01

    In our country, in last congresses, Gomez et al carried out reactivity calculations based on the solution of the diffusion equation for an energy group using nodal methods in one dimension and the TPL approach (Lineal Perturbation Theory). Later on, Mugica extended the application to the case of multigroup so much so much in one as in two dimensions (X Y geometry) with excellent results. Presently work is carried out similar calculations but this time based on the solution of the neutron transport equation in X Y geometry using nodal methods and again the TPL approximation. The idea is to provide a calculation method that allows to obtain in quick form the reactivity solving the direct problem as well as the enclosed problem of the not perturbed problem. A test problem for the one that results are provided for the effective multiplication factor is described and its are offered some conclusions. (Author)

  8. Myoglobin blood test

    Science.gov (United States)

    Serum myoglobin; Heart attack - myoglobin blood test; Myositis - myoglobin blood test; Rhabdomyolysis - myoglobin blood test ... too high, it can damage the kidneys. This test is ordered when your health care provider suspects ...

  9. Ketones urine test

    Science.gov (United States)

    Ketone bodies - urine; Urine ketones; Ketoacidosis - urine ketones test; Diabetic ketoacidosis - urine ketones test ... Urine ketones are usually measured as a "spot test." This is available in a test kit that ...

  10. Blood Test: Glucose

    Science.gov (United States)

    ... Videos for Educators Search English Español Blood Test: Glucose KidsHealth / For Parents / Blood Test: Glucose What's in ... liver or kidneys) is working. What Is a Glucose Test? A glucose test measures how much glucose ...

  11. PT and INR Test

    Science.gov (United States)

    ... Normalized Ratio Related tests: Activated Clotting Time ; Partial Thromboplastin Time ; Prothrombin Consumption Time; Fibrinogen ; Coagulation Factors ; Platelet Count ; Platelet Function Tests ; Thrombin Time ; Warfarin Sensitivity Testing All content on Lab Tests Online has ...

  12. Heart Health Tests

    Science.gov (United States)

    ... is easier to treat. Blood tests and heart health tests can help find heart diseases or identify ... diseases. There are several different types of heart health tests. Your doctor will decide which test or ...

  13. Genetic Testing (For Parents)

    Science.gov (United States)

    ... Staying Safe Videos for Educators Search English Español Genetic Testing KidsHealth / For Parents / Genetic Testing What's in ... blood, skin, bone, or other tissue is needed. Genetic Testing During Pregnancy For genetic testing before birth, ...

  14. Prenatal Genetic Screening Tests

    Science.gov (United States)

    ... Education & Events Advocacy For Patients About ACOG Prenatal Genetic Screening Tests Home For Patients Search FAQs Prenatal ... Screening Tests FAQ165, July 2017 PDF Format Prenatal Genetic Screening Tests Pregnancy What is prenatal genetic testing? ...

  15. Comparison between dose calculation in XiO Registered-Sign and dosimetric measurements in virtual wedge photon beams; Comparacao entre o calculo da dose no XiO Registered-Sign e medidas dosimetricas em feixes de fotons com filtro virtual

    Energy Technology Data Exchange (ETDEWEB)

    Almeida, Laila G.; Amaral, Leonardo L.; Oliveira, Harley F., E-mail: lailagalmeida@gmail.com [Universidade de Sao Paulo (HCFMRP/USP), Ribeirao Preto, SP (Brazil). Hospital das Clinicas. Servico de Radioterapia; Maia, Ana F. [Universidade Federal de Sergipe (UFS), Sao Cristovao (Sweden), (Brasil) Departamento de Fisica

    2012-08-15

    The virtual wedge is useful tool in the radiation treatment planning since it has series of advantages over the hard wedge. Quality control tests ensure correct performance of the planning done in treatment planning systems (TPS). This study aimed to compare doses calculated by TPS and doses measured by ionization chamber (CI) and an ionization chambers array in virtual wedge photon beams of 6 MV. Measures carried out in Primus linear accelerator with a solid water phantom and dosimeter positioned at 10 cm depth with gantry at 0 Degree-Sign in many fields sizes and angles in the virtual wedge. Measurements on the central axis used as dosimeter an IC and on off-axis used an IC array. The simulation in CMS-XiO used the CT images of the phantom in the same configuration of the irradiation. Maximum and minimum values of the percentage differences between the doses provided by TPS and measurements with ionization chamber on the central axis were 1.43 and -0.10%, respectively, with average percentage difference of 0.08% and confidence limit of {Delta}=1.72%. In the region off-axis, the average percentage difference was 0.04%, with a maximum of 1.9%, minimum of 0% and confidence limit of {Delta}=1.91%. All values for dose percentage differences were below 2% and lower confidence limit of 3% are thus, according to the recommendations of the Technical Report Series - TRS-430. (author)

  16. Differences in absorbed doses at risk organs and target tumoral of planning(PTV) in lung treatments using two algorithms of different calculations; Diferencias en las dosis absorbidas en organos de riesgo y volumen tumoral de planificacion (PTV) en tratamientos de pulmon usando dos algoritmos de calculo diferentes: pencil beam y collpased cone

    Energy Technology Data Exchange (ETDEWEB)

    Uruena Llinares, A.; Santos Rubio, A.; Luis Simon, F. J.; Sanchez Carmona, G.; Herrador Cordoba, M.

    2006-07-01

    The objective of this paper is to compare, in thirty treatments for lung cancer,the absorbed doses at risk organs and target volumes obtained between the two used algorithms of calculation of our treatment planning system Oncentra Masterplan, that is, Pencil Beams vs Collapsed Cone. For it we use a set of measured indicators (D1 and D99 of tumor volume, V20 of lung, homogeneity index defined as (D5-D95)/D prescribed, and others). Analysing the dta, making a descriptor analysis of the results, and applying the non parametric test of the ranks with sign of Wilcoxon we find that the use of Pencil Beam algorithm underestimates the dose in the zone of the PTV including regions of low density as well as the values of maximum dose in spine cord. So, we conclude that in those treatments in which the spine dose is near the maximum permissible limit or those in which the PTV it includes a zone with pulmonary tissue must be used the Collapse Cone algorithm systematically and in any case an analysis must become to choose between time and precision in the calculation for both algorithms. (Authors)

  17. To test or not to test

    DEFF Research Database (Denmark)

    Rochon, Justine; Gondan, Matthias; Kieser, Meinhard

    2012-01-01

    Background: Student's two-sample t test is generally used for comparing the means of two independent samples, for example, two treatment arms. Under the null hypothesis, the t test assumes that the two samples arise from the same normally distributed population with unknown variance. Adequate...... control of the Type I error requires that the normality assumption holds, which is often examined by means of a preliminary Shapiro-Wilk test. The following two-stage procedure is widely accepted: If the preliminary test for normality is not significant, the t test is used; if the preliminary test rejects...... the null hypothesis of normality, a nonparametric test is applied in the main analysis. Methods: Equally sized samples were drawn from exponential, uniform, and normal distributions. The two-sample t test was conducted if either both samples (Strategy I) or the collapsed set of residuals from both samples...

  18. Survey of Testing Practices.

    Science.gov (United States)

    Malarkey, Cynthia J.; Aiken, Lewis R.

    The Survey of Testing Practices was administered to 470 undergraduate students at Pepperdine University and the Univesity of California Los Angeles. The items concerned testing practices in three or four classes taken the previous term: type of test, test administration, class size, procedures for returning tests, test difficulty, and observed…

  19. Boilerplate Test Article (BTA) Modal Test Correlation

    Science.gov (United States)

    Vassilakos, Gregory J.; Corliss, James M.; Mark, Stephen D.

    2017-01-01

    Modal testing of the Boilerplate Test Article (BTA) was performed to obtain data to determine the accuracy of the BTA LS- DYNA model in determining the structural response. The BTA is a full-scale steel and aluminum test article that is representative of the Orion Crew Module (CM), with similar outer-mold-line geometry, mass properties, and some similar structural features, including an internal pressure vessel connected to a backshell and heatshield via longerons, Retention and Release (R&R) brackets, and an aft ring. The structural design of the Orion CM is being developed based on LS-DYNA water landing simulations. To obtain data to evaluate the accuracy of LS-DYNA water impact landing simulations, a series of BTA water impacts was conducted at NASA Langley Research Center (LaRC). Discrepancies between test and simulation data are attributed to three causes:(1) Test data variability and uncertainty, (2) LS-DYNA water model and fluid-structure coupling approximations; and (3) LS-DYNA structural modeling approximations. Two activities have been undertaken to assess the accuracy of the BTA LS-DYNA structural model separately from the fluid-structure coupling portion of the water landing simulations: 1) modal testing, and 2) static load testing. The results from the static load tests are documented in a separate report. For the modal test series, the following tests were performed: (1) BTA Fully-Assembled Model Test, (2) BTA Backshell Removed Modal Test, (3) Standalone Heatshield Modal Test, (4) Standalone Windward Backshell Panel Modal Test; and (5) Standalone Leeward Backshell Panel Modal Test. This report documents findings from correlation of modal test data with LS-DYNA modal analysis results. The following figures illustrate the correlation of the modal frequencies. Where multiple closely spaced modes have been identified, the points representing the upper and lower frequencies are shown connected by a dotted line.

  20. From Test Takers to Test Makers

    Science.gov (United States)

    Smith, Kari

    2009-01-01

    As a classroom teacher, Kari Smith realized that traditional objective tests don't always assess what students actually know. But tests are so deeply embedded in the education system that it would be difficult to do away with them entirely. Smith decided to make tests into learning tools. In this article, Smith describes three strategies for…

  1. Test Bias and Ability Level Testing.

    Science.gov (United States)

    Silverman, Bernard

    1979-01-01

    The average grade equivalent reading comprehension scores of students in Black schools are compared to those of students in White schools under two forms of test administration. Concludes that use of grade level testing with the Iowa Tests of Basic Skills is biased in favor of low scoring subgroups. (Author)

  2. Testing and Tests: Pedagogical Versus Public Uses.

    Science.gov (United States)

    Anderson, Scarvia B.; Dobbin, John E.

    Public uses of tests and testing include all those materials and practices in observation of human behavior that are intended to help administrators, school boards, legislatures, taxpayers, and others to evaluate their educational systems. Pedagogical uses of tests, on the other hand, cover all those materials and practices in observation of human…

  3. AUTOMATED API TESTING APPROACH

    OpenAIRE

    SUNIL L. BANGARE; SEEMA BORSE; PALLAVI S. BANGARE; SHITAL NANDEDKAR

    2012-01-01

    Software testing is an investigation conducted to provide stakeholders with information about the quality of the product or service under test. With the help of software testing we can verify or validate the software product. Normally testing will be done after development of software but we can perform the software testing at the time of development process also. This paper will give you a brief introduction about Automated API Testing Tool. This tool of testing will reduce lots of headache ...

  4. Web Security Testing Cookbook

    CERN Document Server

    Hope, Paco

    2008-01-01

    Among the tests you perform on web applications, security testing is perhaps the most important, yet it's often the most neglected. The recipes in the Web Security Testing Cookbook demonstrate how developers and testers can check for the most common web security issues, while conducting unit tests, regression tests, or exploratory tests. Unlike ad hoc security assessments, these recipes are repeatable, concise, and systematic-perfect for integrating into your regular test suite.

  5. Growth hormone stimulation test

    Science.gov (United States)

    Arginine test; Arginine-GHRH test ... of re-inserting the needle each time. The test takes between 2 to 5 hours. The procedure ... eat for 10 to 12 hours before the test. Eating food can change the test results. Some ...

  6. Blood Test: Lipid Panel

    Science.gov (United States)

    ... Advertisement Featured ContentPap Smear (Pap Test)Read Article >>Pap Smear (Pap Test)Preconception Carrier ScreeningsRead Article >>Preconception Carrier ... Article >>Tests and ProceduresPap Smear (Pap Test)A Pap smear (Pap test) is a medical exam used to ...

  7. Vendor System Vulnerability Testing Test Plan

    Energy Technology Data Exchange (ETDEWEB)

    James R. Davidson

    2005-01-01

    The Idaho National Laboratory (INL) prepared this generic test plan to provide clients (vendors, end users, program sponsors, etc.) with a sense of the scope and depth of vulnerability testing performed at the INL’s Supervisory Control and Data Acquisition (SCADA) Test Bed and to serve as an example of such a plan. Although this test plan specifically addresses vulnerability testing of systems applied to the energy sector (electric/power transmission and distribution and oil and gas systems), it is generic enough to be applied to control systems used in other critical infrastructures such as the transportation sector, water/waste water sector, or hazardous chemical production facilities. The SCADA Test Bed is established at the INL as a testing environment to evaluate the security vulnerabilities of SCADA systems, energy management systems (EMS), and distributed control systems. It now supports multiple programs sponsored by the U.S. Department of Energy, the U.S. Department of Homeland Security, other government agencies, and private sector clients. This particular test plan applies to testing conducted on a SCADA/EMS provided by a vendor. Before performing detailed vulnerability testing of a SCADA/EMS, an as delivered baseline examination of the system is conducted, to establish a starting point for all-subsequent testing. The series of baseline tests document factory delivered defaults, system configuration, and potential configuration changes to aid in the development of a security plan for in depth vulnerability testing. The baseline test document is provided to the System Provider,a who evaluates the baseline report and provides recommendations to the system configuration to enhance the security profile of the baseline system. Vulnerability testing is then conducted at the SCADA Test Bed, which provides an in-depth security analysis of the Vendor’s system.b a. The term System Provider replaces the name of the company/organization providing the system

  8. Tractor accelerated test on test rig

    Directory of Open Access Journals (Sweden)

    M. Mattetti

    2013-09-01

    Full Text Available The experimental tests performed to validate a tractor prototype before its production, need a substantial financial and time commitment. The tests could be reduced using accelerated tests able to reproduce on the structural part of the tractor, the same damage produced on the tractor during real life in a reduced time. These tests were usually performed reproducing a particular harsh condition a defined number of times, as for example using a bumpy road on track to carry out the test in any weather condition. Using these procedures the loads applied on the tractor structure are different with respect to those obtained during the real use, with the risk to apply loads hard to find in reality. Recently it has been demonstrated how, using the methodologies designed for cars, it is possible to also expedite the structural tests for tractors. In particular, automotive proving grounds were recently successfully used with tractors to perform accelerated structural tests able to reproduce the real use of the machine with an acceleration factor higher than that obtained with the traditional methods. However, the acceleration factor obtained with a tractor on proving grounds is in any case reduced due to the reduced speed of the tractors with respect to cars. In this context, the goal of the paper is to show the development of a methodology to perform an accelerated structural test on a medium power tractor using a 4 post test rig. In particular, several proving ground testing conditions have been performed to measure the loads on the tractor. The loads obtained were then edited to remove the not damaging portion of signals, and finally the loads obtained were reproduced in a 4 post test rig. The methodology proposed could be a valid alternative to the use of a proving ground to reproduce accelerated structural tests on tractors.

  9. Dexamethasone suppression test

    Science.gov (United States)

    DST; ACTH suppression test; Cortisol suppression test ... During this test, you will receive dexamethasone. This is a strong man-made (synthetic) glucocorticoid medicine. Afterward, your blood is drawn ...

  10. Bone mineral density test

    Science.gov (United States)

    BMD test; Bone density test; Bone densitometry; DEXA scan; DXA; Dual-energy x-ray absorptiometry; p-DEXA; Osteoporosis - BMD ... need to undress. This scan is the best test to predict your risk of fractures, especially of ...

  11. Ketones blood test

    Science.gov (United States)

    Acetone bodies; Ketones - serum; Nitroprusside test; Ketone bodies - serum; Ketones - blood; Ketoacidosis - ketones blood test ... fat cells break down in the blood. This test is used to diagnose ketoacidosis . This is a ...

  12. Campylobacter serology test

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003530.htm Campylobacter serology test To use the sharing features on this page, please enable JavaScript. Campylobacter serology test is a blood test to look ...

  13. Mark 1 Test Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The Mark I Test Facility is a state-of-the-art space environment simulation test chamber for full-scale space systems testing. A $1.5M dollar upgrade in fiscal year...

  14. Testing for normality

    CERN Document Server

    Thode, Henry C

    2002-01-01

    Describes the selection, design, theory, and application of tests for normality. Covers robust estimation, test power, and univariate and multivariate normality. Contains tests ofr multivariate normality and coordinate-dependent and invariant approaches.

  15. Large Rotor Test Apparatus

    Data.gov (United States)

    Federal Laboratory Consortium — This test apparatus, when combined with the National Full-Scale Aerodynamics Complex, produces a thorough, full-scale test capability. The Large Rotor Test Apparatus...

  16. Brain natriutetic peptide test

    Science.gov (United States)

    ... medlineplus.gov/ency/article/007509.htm Brain natriuretic peptide test To use the sharing features on this page, please enable JavaScript. Brain natriuretic peptide (BNP) test is a blood test that measures ...

  17. Kidney function tests

    Science.gov (United States)

    Kidney function tests are common lab tests used to evaluate how well the kidneys are working. Such tests include: ... Oh MS, Briefel G. Evaluation of renal function, water, electrolytes ... and Management by Laboratory Methods . 23rd ed. Philadelphia, ...

  18. ALP isoenzyme test

    Science.gov (United States)

    Alkaline phosphatase isoenzyme test ... anything for 10 to 12 hours before the test, unless your health care provider tells you to do so. Many medicines can interfere with blood test results. Your health care provider will tell you ...

  19. Methylene blue test

    Science.gov (United States)

    Methemoglobinemia - methylene blue test ... No special preparation is required for this test. ... which are genetic (problem with your genes). This test is used to tell the difference between methemoglobinemia ...

  20. Blood Test: Estradiol

    Science.gov (United States)

    ... levels of estradiol, which are produced by the testes and adrenal glands. In young girls, estradiol levels ... to check for damage or disease of the testes, ovaries, or adrenal glands. Testing estradiol levels also ...

  1. Aviation Flight Test

    Data.gov (United States)

    Federal Laboratory Consortium — Redstone Test Center provides an expert workforce and technologically advanced test equipment to conduct the rigorous testing necessary for U.S. Army acquisition and...

  2. Blood sugar test

    Science.gov (United States)

    ... Fasting blood sugar; Glucose test; Diabetic screening - blood sugar test; Diabetes - blood sugar test ... to screen a person for diabetes. High blood sugar and diabetes may not cause symptoms in the early stages. ...

  3. Strep Throat Test

    Science.gov (United States)

    ... Testing Leptin Levetiracetam Lipase Lipid Profile Lipoprotein (a) Lithium Liver Panel Lp-PLA2 Lupus Anticoagulant Testing Luteinizing ... 2012 guidelines from the Infectious Diseases Society of America (IDSA), confirmatory testing on adults is not usually ...

  4. Solving Leak Testing Challenges

    National Research Council Canada - National Science Library

    John Sprovieri

    2007-01-01

    .... InterTech provided two Model 1075 pressure-decay leak detectors to perform the three tests-a leak test at 220 inches of water column, a leak test at 5 inches of water column, and a forward direction...

  5. Prenatal Genetic Diagnostic Tests

    Science.gov (United States)

    ... Education & Events Advocacy For Patients About ACOG Prenatal Genetic Diagnostic Tests Home For Patients Search FAQs Prenatal ... Pamphlets - Spanish FAQ164, September 2016 PDF Format Prenatal Genetic Diagnostic Tests Pregnancy What is prenatal genetic testing? ...

  6. Structural Test Facility

    Data.gov (United States)

    Federal Laboratory Consortium — Provides a wide variety of testing equipment, fixtures and facilities to perform both unique aviation component testing as well as common types of materials testing...

  7. Glucagon blood test

    Science.gov (United States)

    ... type I - glucagon test; Hypoglycemia - glucagon test; Low blood sugar - glucagon test ... A blood sample is needed . ... When the needle is inserted to draw blood, some people feel ... Afterward, there may be some throbbing or a slight bruise. This ...

  8. Prolactin blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003718.htm Prolactin blood test To use the sharing features on this page, ... test measures the amount of prolactin in the blood. How the Test is Performed A blood sample is needed . How ...

  9. BUN - blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003474.htm BUN - blood test To use the sharing features on this page, ... for the Test Many medicines can interfere with blood test results. Your health care provider will tell you ...

  10. Chloride Blood Test

    Science.gov (United States)

    ... page: https://medlineplus.gov/labtests/chloridebloodtest.html Chloride Blood Test To use the sharing features on this page, please enable JavaScript. What is a Chloride Blood Test? A chloride blood test measures the amount of ...

  11. Potassium Blood Test

    Science.gov (United States)

    ... page: https://medlineplus.gov/labtests/potassiumbloodtest.html Potassium Blood Test To use the sharing features on this page, please enable JavaScript. What is a Potassium Blood Test? A potassium blood test measures the amount of ...

  12. Small test SDHW systems

    DEFF Research Database (Denmark)

    Vejen, Niels Kristian

    1999-01-01

    Three small test SDHW systems was tested in a laboratory test facility.The three SDHW systems where all based on the low flow principe and a mantle tank but the design of the systems where different.......Three small test SDHW systems was tested in a laboratory test facility.The three SDHW systems where all based on the low flow principe and a mantle tank but the design of the systems where different....

  13. Guidelines for Statistical Testing

    OpenAIRE

    Strigini, L.; Littlewood, B.; European Space Agency

    1997-01-01

    This document provides an introduction to statistical testing. Statistical testing of software is here defined as testing in which the test cases are produced by a random process meant to produce different test cases with the same probabilities with which they would arise in actual use of the software. Statistical testing of software has these main advantages: for the purpose of reliability assessment and product acceptance, it supports directly estimates of reliability, and thus decisions on...

  14. Mobile Test Capabilities

    Data.gov (United States)

    Federal Laboratory Consortium — The Electrical Power Mobile Test capabilities are utilized to conduct electrical power quality testing on aircraft and helicopters. This capability allows that the...

  15. Test Control Center (TCC)

    Data.gov (United States)

    Federal Laboratory Consortium — The Test Control Center (TCC) provides a consolidated facility for planning, coordinating, controlling, monitoring, and analyzing distributed test events. ,The TCC...

  16. Electromagnetic Interface Testing Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The Electromagnetic Interface Testing facilitysupports such testing asEmissions, Field Strength, Mode Stirring, EMP Pulser, 4 Probe Monitoring/Leveling System, and...

  17. FOOD SAFETY TESTING LABORATORY

    Data.gov (United States)

    Federal Laboratory Consortium — This laboratory develops screening assays, tests and modifies biosensor equipment, and optimizes food safety testing protocols for the military and civilian sector...

  18. GPS Test Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The Global Positioning System (GPS) Test Facility Instrumentation Suite (GPSIS) provides great flexibility in testing receivers by providing operational control of...

  19. Textiles Performance Testing Facilities

    Data.gov (United States)

    Federal Laboratory Consortium — The Textiles Performance Testing Facilities has the capabilities to perform all physical wet and dry performance testing, and visual and instrumental color analysis...

  20. Role of test motivation in intelligence testing

    Science.gov (United States)

    Duckworth, Angela Lee; Quinn, Patrick D.; Lynam, Donald R.; Loeber, Rolf; Stouthamer-Loeber, Magda

    2011-01-01

    Intelligence tests are widely assumed to measure maximal intellectual performance, and predictive associations between intelligence quotient (IQ) scores and later-life outcomes are typically interpreted as unbiased estimates of the effect of intellectual ability on academic, professional, and social life outcomes. The current investigation critically examines these assumptions and finds evidence against both. First, we examined whether motivation is less than maximal on intelligence tests administered in the context of low-stakes research situations. Specifically, we completed a meta-analysis of random-assignment experiments testing the effects of material incentives on intelligence-test performance on a collective 2,008 participants. Incentives increased IQ scores by an average of 0.64 SD, with larger effects for individuals with lower baseline IQ scores. Second, we tested whether individual differences in motivation during IQ testing can spuriously inflate the predictive validity of intelligence for life outcomes. Trained observers rated test motivation among 251 adolescent boys completing intelligence tests using a 15-min “thin-slice” video sample. IQ score predicted life outcomes, including academic performance in adolescence and criminal convictions, employment, and years of education in early adulthood. After adjusting for the influence of test motivation, however, the predictive validity of intelligence for life outcomes was significantly diminished, particularly for nonacademic outcomes. Collectively, our findings suggest that, under low-stakes research conditions, some individuals try harder than others, and, in this context, test motivation can act as a third-variable confound that inflates estimates of the predictive validity of intelligence for life outcomes. PMID:21518867

  1. Role of test motivation in intelligence testing.

    Science.gov (United States)

    Duckworth, Angela Lee; Quinn, Patrick D; Lynam, Donald R; Loeber, Rolf; Stouthamer-Loeber, Magda

    2011-05-10

    Intelligence tests are widely assumed to measure maximal intellectual performance, and predictive associations between intelligence quotient (IQ) scores and later-life outcomes are typically interpreted as unbiased estimates of the effect of intellectual ability on academic, professional, and social life outcomes. The current investigation critically examines these assumptions and finds evidence against both. First, we examined whether motivation is less than maximal on intelligence tests administered in the context of low-stakes research situations. Specifically, we completed a meta-analysis of random-assignment experiments testing the effects of material incentives on intelligence-test performance on a collective 2,008 participants. Incentives increased IQ scores by an average of 0.64 SD, with larger effects for individuals with lower baseline IQ scores. Second, we tested whether individual differences in motivation during IQ testing can spuriously inflate the predictive validity of intelligence for life outcomes. Trained observers rated test motivation among 251 adolescent boys completing intelligence tests using a 15-min "thin-slice" video sample. IQ score predicted life outcomes, including academic performance in adolescence and criminal convictions, employment, and years of education in early adulthood. After adjusting for the influence of test motivation, however, the predictive validity of intelligence for life outcomes was significantly diminished, particularly for nonacademic outcomes. Collectively, our findings suggest that, under low-stakes research conditions, some individuals try harder than others, and, in this context, test motivation can act as a third-variable confound that inflates estimates of the predictive validity of intelligence for life outcomes.

  2. Testing the independence of two diagnostic tests.

    Science.gov (United States)

    Shen, Y; Wu, D; Zelen, M

    2001-12-01

    Consider two diagnostic procedures having binary outcomes. If one of the tests results in a positive finding, a more definitive diagnostic procedure will be administered to establish the presence or absence of a disease. The use of both tests will improve the overall screening sensitivity when the two tests are independent, compared with employing two tests that are positively correlated. We estimate the correlation coefficient of the two tests and derive statistical methods for testing the independence of the two diagnostic procedures conditional on disease status. The statistical tests are used to investigate the independence of mammography and clinical breast exams aimed at establishing the benefit of early detection of breast cancer. The data used in the analysis are obtained from periodic screening examinations of three randomized clinical trials of breast cancer screening. Analysis of each of these trials confirms the independence of the clinical breast and mammography examinations. Based on these three large clinical trials, we conclude that a clinical breast exam considerably increases the overall sensitivity relative to screening with mammography alone and should be routinely included in early breast cancer detection programs.

  3. Nationale test i naturfag

    DEFF Research Database (Denmark)

    Andreasen, Karen Egedal; Jensen, Lars Bang

    2015-01-01

    Kapitlet rummer en analyse og diskussion af test inden for naturfagsområdet og de fagforståelser de afspejler med fokus på de nationale test.......Kapitlet rummer en analyse og diskussion af test inden for naturfagsområdet og de fagforståelser de afspejler med fokus på de nationale test....

  4. Sweat electrolytes test

    Science.gov (United States)

    Sweat test; Sweat chloride; Iontophoretic sweat test; CF - sweat test; Cystic fibrosis - sweat test ... A colorless, odorless chemical that causes sweating is applied to a small area on an arm or leg. An electrode is then attached to the spot. A weak electrical ...

  5. CO2 blood test

    Science.gov (United States)

    Bicarbonate test; HCO3-; Carbon dioxide test; TCO2; Total CO2; CO2 test - serum; Acidosis - CO2; Alkalosis - CO2 ... The CO2 test is most often done as part of an electrolyte or basic metabolic panel. Changes in your ...

  6. PSEUDOEXHAUSTIVE RAM TESTING

    Directory of Open Access Journals (Sweden)

    V. N. Yarmolik

    2017-01-01

    Full Text Available Modern RAM tests and methods for their generation are analyzed and investigated. The wide application of pseudoexhaustive tests as the main test procedure for modern computer systems has been proved. The main estimates and metrics for so kind of tests are obtained. The values of analytical estimates have been validated by the experimental investigations.

  7. Tests for H. pylori

    Science.gov (United States)

    Peptic ulcer disease - H. pylori ; PUD - H. pylori ... There are several methods to test for H. pylori infection. Breath Test (Carbon Isotope-urea Breath Test, or UBT) Up to 2 weeks before the test, you need to stop taking antibiotics, ...

  8. Color identification testing device

    Science.gov (United States)

    Brawner, E. L.; Martin, R.; Pate, W.

    1970-01-01

    Testing device, which determines ability of a technician to identify color-coded electric wires, is superior to standard color blindness tests. It tests speed of wire selection, detects partial color blindness, allows rapid testing, and may be administered by a color blind person.

  9. Pre-Test Assessment

    Science.gov (United States)

    Berry, Thomas

    2008-01-01

    Pre-tests are a non-graded assessment tool used to determine pre-existing subject knowledge. Typically pre-tests are administered prior to a course to determine knowledge baseline, but here they are used to test students prior to topical material coverage throughout the course. While counterintuitive, the pre-tests cover material the student is…

  10. Displacement compressors - acceptance tests

    CERN Document Server

    International Organization for Standardization. Geneva

    1996-01-01

    ISO 1217:2009 specifies methods for acceptance tests regarding volume rate of flow and power requirements of displacement compressors. It also specifies methods for testing liquid-ring type compressors and the operating and testing conditions which apply when a full performance test is specified.

  11. Load testing circuit

    DEFF Research Database (Denmark)

    2009-01-01

    A load testing circuit a circuit tests the load impedance of a load connected to an amplifier. The load impedance includes a first terminal and a second terminal, the load testing circuit comprising a signal generator providing a test signal of a defined bandwidth to the first terminal of the load...

  12. Refactoring test code

    NARCIS (Netherlands)

    A. van Deursen (Arie); L.M.F. Moonen (Leon); A. van den Bergh; G. Kok

    2001-01-01

    textabstractTwo key aspects of extreme programming (XP) are unit testing and merciless refactoring. Given the fact that the ideal test code / production code ratio approaches 1:1, it is not surprising that unit tests are being refactored. We found that refactoring test code is different from

  13. What Is Stress Testing?

    Science.gov (United States)

    ... However, your doctor may want to use a stress test to screen for CHD if you have diabetes. This disease increases your risk of CHD. Currently, though, no evidence shows that having a stress test will improve your outcome if you have diabetes. What To Expect Before Stress Testing Stress testing ...

  14. Blood Test: Bilirubin

    Science.gov (United States)

    ... Important? Top 10 Homework Tips Raising Confident Kids Blood Test: Bilirubin KidsHealth > For Parents > Blood Test: Bilirubin Print ... español Análisis de sangre: bilirrubina What Is a Blood Test? A blood test is when a sample of ...

  15. Lyme disease blood test

    Science.gov (United States)

    The Lyme disease blood test looks for antibodies in the blood to the bacteria that causes Lyme disease. The test is used to help ... specialist looks for Lyme disease antibodies in the blood sample using the ELISA test . If the ELISA test is positive, it must ...

  16. Lactose tolerance tests

    Science.gov (United States)

    ... than 12 parts per million over your fasting (pre-test) level. The blood test is considered normal if your glucose level ... of 12 parts per million (ppm) over your pre-test level is considered positive, ... lactose. The blood test is considered abnormal if your glucose level ...

  17. Dtest Testing Software

    Science.gov (United States)

    Jain, Abhinandan; Cameron, Jonathan M.; Myint, Steven

    2013-01-01

    This software runs a suite of arbitrary software tests spanning various software languages and types of tests (unit level, system level, or file comparison tests). The dtest utility can be set to automate periodic testing of large suites of software, as well as running individual tests. It supports distributing multiple tests over multiple CPU cores, if available. The dtest tool is a utility program (written in Python) that scans through a directory (and its subdirectories) and finds all directories that match a certain pattern and then executes any tests in that directory as described in simple configuration files.

  18. Numeracy Tests For Dummies

    CERN Document Server

    Beveridge, Colin

    2012-01-01

    The easy way to get practice and excel at numeracy tests Whether you're looking for a new job, applying to certain university courses, or attempting to join the military, you're increasingly likely to face a numeracy test as part of the screening process. And the only way to prepare for a numeracy test is practise. Numeracy Tests For Dummies is an accessible one-stop guide to pass these test. Featuring expert advice, instruction, review, and plenty of practise, Numeracy Tests For Dummies will help you succeed. Numeracy Tests For Dummies contains instruction and revision on:Basic mathematical k

  19. Skylab vibroacoustic test program

    Science.gov (United States)

    Jewell, R. E.

    1974-01-01

    Vibroacoustic testing was performed on the orbital workshop dynamic test article and the payload assembly, the two major elements of the Skylab payload. The testing was conducted on each of the Skylab elements separately in the reverberation chamber at the Johnson Space Center. The two test configurations were high fidelity flight article simulations. The testing was conducted in two phases; in the first phase, acoustic tests were performed at levels simulating the lift-off and atmospheric flight acoustic criteria. In the second phase, low frequency sinusoidal vibration tests were conducted to obtain modal response data. The objectives of the Skylab vibroacoustic test program were to: verify the vibration design and test criteria; qualify selected flight components to the vibroacoustic criteria; and verify analytical models used for dynamic load analyses. This paper describes the vibroacoustic testing and discusses the results.

  20. PROBLEMAS INVERSOS Y CALCULO DE VARIACIONES: APLICACIONES A LA BIOLOGIA Y AL ANALISIS DE IMAGENES

    OpenAIRE

    LECAROS LIRA, RODRIGO ANTONIO; LECAROS LIRA, RODRIGO ANTONIO

    2012-01-01

    El tema central ele esta tesis, para optar al grado ele Doctor en Ciencias ele la Ingeniería con mención en Modelamiento Matemático, es el estudio de los llamados problemas inversos, el modelamiento matemático de fenómenos de interacción fluido estructura y la implementación numérica de un algoritmo de segmentación. Este trabajo se divide en tres partes. En primer lugar (Capítulo 2), estudiamos un problema inverso en biología. Nos interesamos en la posibilid; .. d de recuperar la den...

  1. Shield calculations, optimization vs. paradigm; Calculos de blindajes, optimizacion vs. paradigma

    Energy Technology Data Exchange (ETDEWEB)

    Cornejo D, N.; Hernandez S, A.; Martinez G, A. [Centro de Proteccion e Higiene de las Radiaciones, Calle 20 No. 4113 e/41 y 47 Playa C.P. 11300 LaHabana (Cuba)]. e-mail: nestor@cphr.edu.cu

    2006-07-01

    Many shieldings have been designed under the criteria of 'Maximum dose rates of project'. It has created the paradigm of those 'low dose rates', for the one which not few specialists would consider unacceptable levels of dose rate superior to the units of {mu}Sv.h{sup -1}, independently of the exposure times. At the present time numerous shieldings are being designed considering dose restrictions in real times of exposure. After these new shieldings, the dose rates could be notably superior to those after traditional shieldings, without it implies inadequate designs or constructive errors. In the work significant differences in levels of dose rates and thickness of shieldings estimated by both methods for some typical facilities. It was concluded that the use of real times of exposure is more adequate for the optimization of the Radiological Protection, although this method demands bigger care in its application. (Author)

  2. Soil pro consolidation load and settlement computation; Preconsolidacion de los suelos y calculo de asentamiento

    Energy Technology Data Exchange (ETDEWEB)

    Delgado Martinez, D. E.

    2009-07-01

    It is estimated that cohesive soils are present in about in about 80% of the Cuban territory. Most of these soils are pre consolidated as a result of the country's geo-environmental conditions. That's why it is important, in the Cuban context, to determine accurately the soil pre consolidation load, correct the oedometric curve and apply these concepts to settlement computation. In this paper, a study is presented to define how to estimate the pre consolidation pressure by using several methods. A database was created. It consisted of 102 pre consolidated soils, which are typical from the central region of Cuban. These soil we analyzed by several Cuban geotechnical research centers. (Author) 12 refs.

  3. ESTUDIO TEÓRICO DE LA MOLÉCULA DE HIDROGENO CALCULO AB-INITIO

    Directory of Open Access Journals (Sweden)

    N. Quitián

    2010-09-01

    Full Text Available Utilizando la técnica LCGO-SCF-MO (Combinación Lineal de los Orbitales Moleculares en Orbitales Gausianos, en el método del Campo Auto-Coherente, se determinaron las energías de orbital, la energía electrónica total, la energía de repulsión nuclear y la energía de Hartree-Fock de la molécula de hidrógeno en su estado fundamental, mediante un cálculo ab initio y utilizando una base de funciones gausianas. Los orbitales moleculares fueron desarrollados en términos de una función Is contraída por átomo de hidrógeno, obtenida por la minimización de los coeficientes y de los exponentes de los orbitales gausianos para el átomo aislado. Los resultados obtenidos nos permiten afirmar que la base molecular mejora sensiblemente los resultados, acercándose más al límite de Hartree-Fock.

  4. Characteristic parameters of drift chambers calculation; Calculo de los parametros caracteristicos de camaras de deriva

    Energy Technology Data Exchange (ETDEWEB)

    Duran, I.; Martinez-Laso, L.

    1989-07-01

    We present here the methods we used to analyse the characteristic parameters of drift chambers. The algorithms to calculate the electric potential in any point for any drift chamber geometry are presented. We include the description of the programs used to calculate the electric field, the drift paths, the drift velocity and the drift time. The results and the errors are discussed. (Author) 7 refs.

  5. Modelizando el calculo de varias variablEEES en el aula

    OpenAIRE

    Aragón Ángel, María Ángeles; Cubarsí Morera, Rafael

    2011-01-01

    La implantaci on de la modelizaci on matem atica en el ambito del Espacio Europeo de Educaci on Superior (EEES) necesita de una revisi on y adaptaci on de los contenidos y estrategias para abordar las asignaturas, en particular, aquellas m as te oricas y abstractas, para fomentar su car acter interdisciplinario. Se presenta una nueva propuesta metodol ogica para la asignatura de An alisis Vectorial (c alculo multivariable) ofertada durante los ultimos a~nos por l'Escola T ecn...

  6. Calculation of reactivity without Lagrange interpolation; Calculo de la reactividad sin interpolacion de Lagrange

    Energy Technology Data Exchange (ETDEWEB)

    Suescun D, D.; Figueroa J, J. H. [Pontificia Universidad Javeriana Cali, Departamento de Ciencias Naturales y Matematicas, Calle 18 No. 118-250, Cali, Valle del Cauca (Colombia); Rodriguez R, K. C.; Villada P, J. P., E-mail: dsuescun@javerianacali.edu.co [Universidad del Valle, Departamento de Fisica, Calle 13 No. 100-00, Cali, Valle del Cauca (Colombia)

    2015-09-15

    A new method to solve numerically the inverse equation of punctual kinetics without using Lagrange interpolating polynomial is formulated; this method uses a polynomial approximation with N points based on a process of recurrence for simulating different forms of nuclear power. The results show a reliable accuracy. Furthermore, the method proposed here is suitable for real-time measurements of reactivity, with step sizes of calculations greater that Δt = 0.3 s; due to its precision can be used to implement a digital meter of reactivity in real time. (Author)

  7. Demand calculations for transformer dimensioning; Calculo de demanda para dimensionamento de transformadores

    Energy Technology Data Exchange (ETDEWEB)

    Villela, Anderson Goncalves; Carvalho, Valdivino Alves de [AES Eletropaulo, SP (Brazil)

    2010-10-15

    The calculation algorithm adopted by the AES Eletropaulo, Brazil, for the dimensioning of LV transformers did not represent the real grid conditions, being necessary the development of a new method. This paper presents the new procedure, based on the application of typical load curves and the consumption of energy calculation based on the load information supplied by clients and designers. (author)

  8. Calculo del valor en riesgo del futuro de energia e internacionalizacion del sector energetico en Colombia

    OpenAIRE

    Esquivel Fonseca, Leidy Gioanna

    2013-01-01

    El presente trabajo de grado busca definir cuál es el mejor método para determinar el valor en riesgo del contrato de futuro de energía eléctrica que se transa en Colombia, para cumplir con este objetivo se toma como referencia el marco histórico del VaR y de los futuros seguido de las características de la fijación de precios, la estructura del contrato, que políticas y métodos hay para cubrirse del riesgo y como se realiza en otros países, realizando algunos cálculos de los modelos más trad...

  9. Sugarcane exergy calculation; Calculo de la exergia de la cana de azucar

    Energy Technology Data Exchange (ETDEWEB)

    Fernandez P, Maria I.; Nebra P, Silvia A. [Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia Mecanica. Dept. de Energia]. E-mails: mariai@fem.unicamp.br.; sanebra@fem.unicamp.br; Martinez R, Arnaldo [Universidade de Oriente, Santiago de Cuba (Cuba). Facultad de Ingenieria Mecanica. Centro de Estudios de Refrigeracion Luis Fernando Brossard Perez]. E-mail: arnaldo@fim.ceefe.uo.edu.cu

    2000-07-01

    This paper presents a sugarcane exergy calculation, carried out considering the material as constituted by dry fiber and juice, being the last one that includes all the sucrose and water present in sugarcane. The variation intervals of sugarcane chemical composition and consequently the chemical composition of fibre and juice were obtained from a bibliography research. the finals results show that, the fibre exergy, as was considered totally dry and without sucrose, is a function of it chemical composition only. The quotient between the exergy and low calorific value has a middle value of 1,14 and the middle value of it exergy was 2329 kJ/kg of cane. Based on the environmental reference proposed by Szargut for the sugarcane juice exergy determination, it was obtained that the mixture component of the juice exergy has no piratical influence in the total exergy juice value, being the value of the reactive exergy component the determining of a middle value of sugarcane juice exergy of 2814,25 kJ/kg of juice and 2380Kj/Kg of cane. The sugarcane exergy value obtained for 8-18% of fiber, 75-82% of water and 14.5-22% of sucrose was 4709Kj/kg of cane. (author)

  10. DISTRIBUCIÓN Y COEFICIENTE DE GINI, CURVA PARAMÉTRICA DE LORENZ SUGERIDA Y CALCULOS

    Directory of Open Access Journals (Sweden)

    Emilio José Chaves

    2003-07-01

    Full Text Available Explica paso a paso un método alterno sugerido para ajustar curvas continuas de Lorenz a los escasos cuantiles de distribución, o macro-datos recibidos. Emplea los datos ordenados de rico-a-pobre y determina –como parte del proceso- dos parámetros (A y B presentes en la función exponencial que sustenta al modelo. Al aplicar el modelo a los mismos cuantiles (macro-datos usados en (OGWANG:2002;17, el Indice de Gini estimado (0.4041 estuvo dentro de los topes señalados (0.3883-0.4083, y su valor fue apenas un 0.67% mayor respecto al valor real (0.4014 reportado a partir de los cerca de sesenta mil microdatos de la encuesta original. Desde un punto de vista teórico, el modelo puede ser aplicado para reformular la ley de Pareto y entender el efecto-forma de las diferentes distribuciones, en especial para las distribuciones iso-Ginis, tema relacionado con las llamadas especificidades regionales de la distribución, y los análisis de dominancia.

  11. Shielding calculations using computer techniques; Calculo de blindajes mediante tecnicas de computacion

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez Portilla, M. I.; Marquez, J.

    2011-07-01

    Radiological protection aims to limit the ionizing radiation received by people and equipment, which in numerous occasions requires of protection shields. Although, for certain configurations, there are analytical formulas, to characterize these shields, the design setup may be very intensive in numerical calculations, therefore the most efficient from to design the shields is by means of computer programs to calculate dose and dose rates. In the present article we review the codes most frequently used to perform these calculations, and the techniques used by such codes. (Author) 13 refs.

  12. Subcritical calculation of the nuclear material warehouse;Calculo de subcriticidad del almacen del material nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Garcia M, T.; Mazon R, R., E-mail: teodoro.garcia@inin.gob.m [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2009-07-01

    In this work the subcritical calculation of the nuclear material warehouse of the Reactor TRIGA Mark III labyrinth in the Mexico Nuclear Center is presented. During the adaptation of the nuclear warehouse (vault I), the fuel was temporarily changed to the warehouse (vault II) and it was also carried out the subcritical calculation for this temporary arrangement. The code used for the calculation of the effective multiplication factor, it was the Monte Carlo N-Particle Extended code known as MCNPX, developed by the National Laboratory of Los Alamos, for the particles transport. (Author)

  13. Diseno y validacion de un procedimiento para el calculo del indice municipal de desarrollo humano sostenible

    National Research Council Canada - National Science Library

    del Carmen Armenteros Acosta, Maria; Ruiz Capote, Ruben

    2008-01-01

    ... y promover el desarrollo humano sostenible. Por ello la seleccion, adaptacion e introduccion de metodos y tecnicas que enriquezcan el diagnostico socioeconomico del municipio es una tarea del caracter teorico y practico en el contexto nacional...

  14. Calculo de volúmenes en modelos remallados de elementos finitos

    Directory of Open Access Journals (Sweden)

    Andrés Lapuebla-Ferri

    2011-06-01

    Full Text Available El Método de los Elementos Finitos asistido por ordenador es una herramienta muy extendida en ingeniería. En ciertas aplicaciones, se precisa modificar la malla del modelo a lo largo del proceso de simulación, lo que se conoce como remallado. En estos casos, además, suele ser necesario realizar mediciones en el modelo de elementos finitos, como por ejemplo calcular el volumen de ciertas regiones del mismo. Los paquetes comerciales disponibles en la actualidad permiten satisfacer algunas de estas necesidades, aunque adolecen de ciertas limitaciones. En este trabajo se presenta una aplicación desarrollada en el código propio de MatlabQc, que permite el cálculo aproximado del volumen de una región del espacio comprendida entre una malla de elementos finitos cuadriláteros lineales y otra malla topológicamente equivalente a la anterior, esta última obtenida a través de un proceso de remallado.

  15. Un error en los calculos matematicos destroza el acelerador de particulas del CERN

    CERN Multimedia

    Cernuda, Olalla

    2007-01-01

    The most famous particle accelerator in the world, who is at CERN, has suffered a catastrophic damage after a great explosion took place in its depths. This explosion has an absolutely scientific explanation: a mathematical mistake in the design of the anchorages of great magnets. (1 page)

  16. Current evaluation of dose rate calculation - analytical method; Visao atual do calculo de dose - metodo analitico

    Energy Technology Data Exchange (ETDEWEB)

    Tello, Marcos [Pontificia Univ. Catolica do Rio Grande do Sul, Porto Alegre, RS (Brazil). Grupo de Compatibilidade Eletromagnetica; Vilhena, Marco Tulio [Rio Grande do Sul Univ., Porto Alegre, RS (Brazil). Programa de Pos-graduacao em Engenharia Metalurgica e dos Materiais

    1996-12-31

    The accuracy of the dose calculations based on pencil beam formulas such as Fokker-Plank equations and Fermi equations for charged particle transport are studied and a methodology to solve the Boltzmann transport equation is suggested 4 refs., 3 figs., 1 tab.

  17. Testing unconstrained optimization software

    Energy Technology Data Exchange (ETDEWEB)

    More, J.J.; Garbow, B.S.; Hillstrom, K.E.

    1978-07-01

    Much of the testing of optimization software is inadequate because the number of test functions is small or the starting points are close to the solution. In addition, there has been too much emphasis on measuring the efficiency of the software and not enough on testing reliability and robustness. To address this need, a relatively large but easy-to-use collection of test functions was produced and guidelines for testing the reliability and robustness of unconstrained optimization software were designed. 9 tables.

  18. Introduccion a la hidraulica de aguas subterraneas : un texto programado para auto-ensenanza

    Science.gov (United States)

    Bennett, Gordon D.

    1987-01-01

    Este ' texto programado esta diseflado para ayudarle a comprender la teoria de la hidniulica de aguas subterraneas por medio de la auto-enseflanza. La instrucci6n programada es un enfoque a una materia, un metodo de aprender;que no elimina el esfuerzo mental del proceso de aprendizaje. Algunas secciones de este programa necesitan solamente ser leidas; otras tendrian que ser elaboradas con lapiz y papel. Algunas preguntas pueden ser contestadas directamente; otras requieren calculos. A medida que se avanza en el texto, tendra que consultar frecuentemente textos o referencias sobre matematicas, mecanica de fluidos e hidrologia. En cada una de las ocho partes del texto, inicie el programa de instrucci6n leyendo la Secci6n 1. Elija una respuesta a la pregunta al final de la secci6n y dirijase a la nueva secci6n indicada al lado de la respuesta escogida. Si su respuesta fue correcta, pase a la secci6n que contiene materia nueva y otra pregunta, y proceda tal como en la Secci6n 1. Si su respuesta no fue correcta, dirijase a la secci6n que contiene explicaciones adicionales sobre el tema anterior y que le indica volver a la pregunta inicial e intentar de nuevo. En este caso, valdra Ia pena repasar el material de la secci6n anterior. Continue de esta man era en el programa hasta que llegue a Ia secci6n que indica el final de la parte. Observe que aunque las secciones estan en orden numerico en cada una de las ocho partes, por lo general, usted no procedeni en secuencia numerica (Secci6n 1 ala Secci6n 2, etc.) de principia a fin.

  19. Role of test motivation in intelligence testing

    National Research Council Canada - National Science Library

    Angela Lee Duckworth; Patrick D. Quinn; Donald R. Lynam; Rolf Loeber; Magda Stouthamer-Loeber; Edward E. Smith

    2011-01-01

    .... The current investigation critically examines these assumptions and finds evidence against both. First, we examined whether motivation is less than maximal on intelligence tests administered in the context of low-stakes research situations...

  20. Wolf Testing: Open Source Testing Software

    Science.gov (United States)

    Braasch, P.; Gay, P. L.

    2004-12-01

    Wolf Testing is software for easily creating and editing exams. Wolf Testing allows the user to create an exam from a database of questions, view it on screen, and easily print it along with the corresponding answer guide. The questions can be multiple choice, short answer, long answer, or true and false varieties. This software can be accessed securely from any location, allowing the user to easily create exams from home. New questions, which can include associated pictures, can be added through a web-interface. After adding in questions, they can be edited, deleted, or duplicated into multiple versions. Long-term test creation is simplified, as you are able to quickly see what questions you have asked in the past and insert them, with or without editing, into future tests. All tests are archived in the database. Written in PHP and MySQL, this software can be installed on any UNIX / Linux platform, including Macintosh OS X. The secure interface keeps students out, and allows you to decide who can create tests and who can edit information already in the database. Tests can be output as either html with pictures or rich text without pictures, and there are plans to add PDF and MS Word formats as well. We would like to thank Dr. Wolfgang Rueckner and the Harvard University Science Center for providing incentive to start this project, computers and resources to complete this project, and inspiration for the project's name. We would also like to thank Dr. Ronald Newburgh for his assistance in beta testing.

  1. Fairness Testing: Testing Software for Discrimination

    OpenAIRE

    Galhotra, Sainyam; Brun, Yuriy; Meliou, Alexandra

    2017-01-01

    This paper defines software fairness and discrimination and develops a testing-based method for measuring if and how much software discriminates, focusing on causality in discriminatory behavior. Evidence of software discrimination has been found in modern software systems that recommend criminal sentences, grant access to financial products, and determine who is allowed to participate in promotions. Our approach, Themis, generates efficient test suites to measure discrimination. Given a sche...

  2. Trends in software testing

    CERN Document Server

    Mohanty, J; Balakrishnan, Arunkumar

    2017-01-01

    This book is focused on the advancements in the field of software testing and the innovative practices that the industry is adopting. Considering the widely varied nature of software testing, the book addresses contemporary aspects that are important for both academia and industry. There are dedicated chapters on seamless high-efficiency frameworks, automation on regression testing, software by search, and system evolution management. There are a host of mathematical models that are promising for software quality improvement by model-based testing. There are three chapters addressing this concern. Students and researchers in particular will find these chapters useful for their mathematical strength and rigor. Other topics covered include uncertainty in testing, software security testing, testing as a service, test technical debt (or test debt), disruption caused by digital advancement (social media, cloud computing, mobile application and data analytics), and challenges and benefits of outsourcing. The book w...

  3. Pragmatics of Testing

    Directory of Open Access Journals (Sweden)

    İsmail Fırat ALTAY

    2007-10-01

    Full Text Available Teaching of a language is a very complicated issue and testing is anindispensable part of this matter. Thanks to testing teachers can assess efficiency ofteaching and learning atmosphere, and can get feedback about their learners. In order torealize this, a test should have some qualifications. One of these qualifications is aboutpragmatics. This paper aims at explaining what makes a test pragmatic and howpragmatic tests can be formed. So, examples of pragmatic tests of different types arepresented with explanations. Their pragmatic components and nature are focused on bygiving example test items on the problematic area of test questions prepared. Finally,the writer states his last words by making further comments and explanations onpragmatics of testing in the conclusion part.

  4. The Danish National Tests

    DEFF Research Database (Denmark)

    Beuchert, Louise Voldby; Nandrup, Anne Brink

    working with the first four rounds of the test data. We provide a brief introduction to adaptive testing, the available data and general data issues including missing data, test participation and data transformations. Additionally, we construct a standardized measure of the raw pupil ability estimate......In 2010, the Danish National Tests were implemented in the public compulsory schools as a mean of evaluating the performance of the public school system. The extensive test program consists of ten mandatory tests in six subjects in grades 2 through 8. In this paper, we share our insights from...... within each test and argue that this is often a more feasible measure for data analyses compared to the transformed test score presented to pupils and teachers. We provide the reader with preliminary analyses of the relation between pupils' national test results and a wide range of pupil background...

  5. Gas Test Loop Booster Fuel Hydraulic Testing

    Energy Technology Data Exchange (ETDEWEB)

    Gas Test Loop Hydraulic Testing Staff

    2006-09-01

    The Gas Test Loop (GTL) project is for the design of an adaptation to the Advanced Test Reactor (ATR) to create a fast-flux test space where fuels and materials for advanced reactor concepts can undergo irradiation testing. Incident to that design, it was found necessary to make use of special booster fuel to enhance the neutron flux in the reactor lobe in which the Gas Test Loop will be installed. Because the booster fuel is of a different composition and configuration from standard ATR fuel, it is necessary to qualify the booster fuel for use in the ATR. Part of that qualification is the determination that required thermal hydraulic criteria will be met under routine operation and under selected accident scenarios. The Hydraulic Testing task in the GTL project facilitates that determination by measuring flow coefficients (pressure drops) over various regions of the booster fuel over a range of primary coolant flow rates. A high-fidelity model of the NW lobe of the ATR with associated flow baffle, in-pile-tube, and below-core flow channels was designed, constructed and located in the Idaho State University Thermal Fluids Laboratory. A circulation loop was designed and constructed by the university to provide reactor-relevant water flow rates to the test system. Models of the four booster fuel elements required for GTL operation were fabricated from aluminum (no uranium or means of heating) and placed in the flow channel. One of these was instrumented with Pitot tubes to measure flow velocities in the channels between the three booster fuel plates and between the innermost and outermost plates and the side walls of the flow annulus. Flow coefficients in the range of 4 to 6.5 were determined from the measurements made for the upper and middle parts of the booster fuel elements. The flow coefficient for the lower end of the booster fuel and the sub-core flow channel was lower at 2.3.

  6. Comparative Test Case Specification

    DEFF Research Database (Denmark)

    Kalyanova, Olena; Heiselberg, Per

     This document includes a definition of the comparative test cases DSF200_3 and DSF200_4, which previously described in the comparative test case specification for the test cases DSF100_3 and DSF200_3 [Ref.1]....... This document includes a definition of the comparative test cases DSF200_3 and DSF200_4, which previously described in the comparative test case specification for the test cases DSF100_3 and DSF200_3 [Ref.1]....

  7. Metamorphic Testing for Cybersecurity.

    Science.gov (United States)

    Chen, Tsong Yueh; Kuo, Fei-Ching; Ma, Wenjuan; Susilo, Willy; Towey, Dave; Voas, Jeffrey; Zhou, Zhi Quan

    2016-06-01

    Testing is a major approach for the detection of software defects, including vulnerabilities in security features. This article introduces metamorphic testing (MT), a relatively new testing method, and discusses how the new perspective of MT can help to conduct negative testing as well as to alleviate the oracle problem in the testing of security-related functionality and behavior. As demonstrated by the effectiveness of MT in detecting previously unknown bugs in real-world critical applications such as compilers and code obfuscators, we conclude that software testing of security-related features should be conducted from diverse perspectives in order to achieve greater cybersecurity.

  8. Materials Test Branch

    Science.gov (United States)

    Gordon, Gail

    2012-01-01

    The Materials Test Branch resides at Marshall Space Flight Center's Materials and Processing laboratory and has a long history of supporting NASA programs from Mercury to the recently retired Space Shuttle. The Materials Test Branch supports its customers by supplying materials testing expertise in a wide range of applications. The Materials Test Branch is divided into three Teams, The Chemistry Team, The Tribology Team and the Mechanical Test Team. Our mission and goal is to provide world-class engineering excellence in materials testing with a special emphasis on customer service.

  9. Cold Flow Propulsion Test Complex Pulse Testing

    Science.gov (United States)

    McDougal, Kris

    2016-01-01

    When the propellants in a liquid rocket engine burn, the rocket not only launches and moves in space, it causes forces that interact with the vehicle itself. When these interactions occur under specific conditions, the vehicle's structures and components can become unstable. One instability of primary concern is termed pogo (named after the movement of a pogo stick), in which the oscillations (cycling movements) cause large loads, or pressure, against the vehicle, tanks, feedlines, and engine. Marshall Space Flight Center (MSFC) has developed a unique test technology to understand and quantify the complex fluid movements and forces in a liquid rocket engine that contribute strongly to both engine and integrated vehicle performance and stability. This new test technology was established in the MSFC Cold Flow Propulsion Test Complex to allow injection and measurement of scaled propellant flows and measurement of the resulting forces at multiple locations throughout the engine.

  10. EMI Test Facility

    Data.gov (United States)

    Federal Laboratory Consortium — FUNCTION: Supports electromagnetic interference/radio frequency interference (EMI/RFI) testing of flight hardware. It is also used to support custom RF testing up to...

  11. Ballistic Test Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The Ballistic Test Facility is comprised of two outdoor and one indoor test ranges, which are all instrumented for data acquisition and analysis. Full-size aircraft...

  12. Prenatal Genetic Testing Chart

    Science.gov (United States)

    ... Advocacy For Patients About ACOG Prenatal Genetic Testing Chart (Infographic) Home For Patients Search FAQs Prenatal Genetic Testing Chart (Infographic) PFSI010 ››› Weeks 1–4 Weeks 5–8 ...

  13. Urine Tests (For Parents)

    Science.gov (United States)

    ... TOPIC Vesicoureteral Reflux (VUR) Blood in the Urine (Hematuria) Urine Test: Creatinine Urine Test: Microalbumin-to-Creatinine ... Video) Urinary Tract Infections Blood in the Urine (Hematuria) Kidneys and Urinary Tract Contact Us Print Resources ...

  14. Urine specific gravity test

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003587.htm Urine specific gravity test To use the sharing features on this page, please enable JavaScript. Urine specific gravity is a laboratory test that shows the concentration ...

  15. Tilt Table Test

    Science.gov (United States)

    ... pressure (the bottom number in a blood pressure reading), lowers peripheral vascular resistance, increases your heart rate ... mayoclinic.org/tests-procedures/tilt-table-test/basics/definition/PRC-20019879 . Mayo Clinic Footer Legal Conditions and ...

  16. Visual acuity test

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003396.htm Visual acuity test To use the sharing features on this page, please enable JavaScript. The visual acuity test is used to determine the smallest ...

  17. Pleural Fluid Analysis Test

    Science.gov (United States)

    ... Analysis Kidney Stone Risk Panel KRAS Mutation Lactate Lactate Dehydrogenase (LD) Lactoferrin Lactose Tolerance Tests LDL Cholesterol LDL ... set of tests (cell count, protein, albumin, and lactate dehydrogenase (LD) level, and appearance of the fluid) to ...

  18. Learning Python testing

    CERN Document Server

    Arbuckle, Daniel

    2014-01-01

    This book is ideal if you want to learn about the testing disciplines and automated testing tools from a hands-on, conversational guide. You should already know Python and be comfortable with Python 3.

  19. HIV Genotypic Resistance Testing

    Science.gov (United States)

    ... that may be present in rare strains of HIV. The test may not detect a drug-resistant strain of ... Less Common Questions Related Content On This Site Tests: HIV Viral Load ; CD4 Count ; HIV Antibody and HIV ...

  20. Blood Gases Test

    Science.gov (United States)

    ... LDL Particle Testing (LDL-P) Lead Legionella Testing Leptin Levetiracetam Lipase Lipid Profile Lipoprotein (a) Lithium Liver ... such as asthma or chronic obstructive pulmonary disease (COPD) is suspected. Blood gases may also be used ...

  1. Alpha-1 Antitrypsin Test

    Science.gov (United States)

    ... LDL Particle Testing (LDL-P) Lead Legionella Testing Leptin Levetiracetam Lipase Lipid Profile Lipoprotein (a) Lithium Liver ... 40; when you have chronic obstructive pulmonary disease (COPD) or unexplained liver disease at any age; when ...

  2. Learning Android application testing

    CERN Document Server

    Blundell, Paul

    2015-01-01

    If you are an Android developer looking to test your applications or optimize your application development process, then this book is for you. No previous experience in application testing is required.

  3. Uric acid test (image)

    Science.gov (United States)

    Uric acid urine test is performed to check for the amount of uric acid in urine. Urine is collected over a 24 ... for testing. The most common reason for measuring uric acid levels is in the diagnosis or treatment of ...

  4. Pulmonary Function Tests

    Science.gov (United States)

    ... you have difficulty with being in closed spaces (claustrophobia), mention this to your provider ordering the test. ... 4 If you have difficulty with closed spaces (claustrophobia), let the test center know in case one ...

  5. USA Hire Testing Platform

    Data.gov (United States)

    Office of Personnel Management — The USA Hire Testing Platform delivers tests used in hiring for positions in the Federal Government. To safeguard the integrity of the hiring processes and ensure...

  6. HPV DNA test

    Science.gov (United States)

    ... test; Cancer of cervix - HPV DNA test References Hacker NF. Cervical dysplasia and cancer. In: Hacker NF, Gambone JC, Hobel CJ, eds. Hacker and Moore's Essentials of Obstetrics and Gynecology . 6th ...

  7. Test Preparation: Your Role

    Science.gov (United States)

    ... Sex Hormone Binding Globulin (SHBG) Shiga toxin-producing Escherichia coli Sickle Cell Tests Sirolimus Smooth Muscle Antibody (SMA) ... the "At a Glance" section of our test descriptions. However, be sure to check with your healthcare ...

  8. Atlantic Test Range (ATR)

    Data.gov (United States)

    Federal Laboratory Consortium — ATR controls fully-instrumented and integrated test ranges that provide full-service support for cradle-to-grave testing. Airspace and surface target areas are used...

  9. Vasoactive intestinal peptide test

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003508.htm Vasoactive intestinal peptide test To use the sharing features on this page, please enable JavaScript. Vasoactive intestinal peptide (VIP) is a test that measures the amount ...

  10. Environmental Test Facility (ETF)

    Data.gov (United States)

    Federal Laboratory Consortium — The Environmental Test Facility (ETF) provides non-isolated shock testing for stand-alone equipment and full size cabinets under MIL-S-901D specifications. The ETF...

  11. Platelet Function Tests

    Science.gov (United States)

    ... Patient Resources For Health Professionals Subscribe Search Platelet Function Tests Send Us Your Feedback Choose Topic At ... Also Known As Platelet Aggregation Studies PFT Platelet Function Assay PFA Formal Name Platelet Function Tests This ...

  12. Extraocular muscle function testing

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003397.htm Extraocular muscle function testing To use the sharing features on this page, please enable JavaScript. Extraocular muscle function testing examines the function of the eye muscles. ...

  13. Integrated Usability Testing

    Directory of Open Access Journals (Sweden)

    Andrei Ternauciuc

    2015-11-01

    Full Text Available It is essential to regularly test the usability of a learning management system, in order to ensure a fast adoption by new users and rapidly shift the focus from the platform to the content and the learning experience. Quantitative testing yields the most reliable results due to the large number of data points acquired, but lacks the in-depth analysis of the qualitative research from a controlled testing setup. We are proposing in this paper an integrated usability testing tool, which can replace a certain type of laboratory testing, where the users’ actions on the real platform are measured and analyzed. We conducted tests with the tool and compared the results with a small scale laboratory test using the same scenarios. The results seem to confirm the proposed tool as a viable alternative to the laboratory test.

  14. ADH (Antidiuretic Hormone) Test

    Science.gov (United States)

    ... Hormone Binding Globulin (SHBG) Shiga toxin-producing Escherichia coli Sickle Cell Tests Sirolimus Smooth Muscle Antibody (SMA) ... Ratio Valproic Acid Vancomycin Vanillylmandelic Acid (VMA) VAP Vitamin A Vitamin B12 and Folate Vitamin D Tests ...

  15. von Willebrand Factor Test

    Science.gov (United States)

    ... Hormone Binding Globulin (SHBG) Shiga toxin-producing Escherichia coli Sickle Cell Tests Sirolimus Smooth Muscle Antibody (SMA) ... Ratio Valproic Acid Vancomycin Vanillylmandelic Acid (VMA) VAP Vitamin A Vitamin B12 and Folate Vitamin D Tests ...

  16. ACTH (Adrenocorticotropic Hormone) Test

    Science.gov (United States)

    ... Hormone Binding Globulin (SHBG) Shiga toxin-producing Escherichia coli Sickle Cell Tests Sirolimus Smooth Muscle Antibody (SMA) ... Ratio Valproic Acid Vancomycin Vanillylmandelic Acid (VMA) VAP Vitamin A Vitamin B12 and Folate Vitamin D Tests ...

  17. Reticulocyte Count Test

    Science.gov (United States)

    ... Hormone Binding Globulin (SHBG) Shiga toxin-producing Escherichia coli Sickle Cell Tests Sirolimus Smooth Muscle Antibody (SMA) ... Ratio Valproic Acid Vancomycin Vanillylmandelic Acid (VMA) VAP Vitamin A Vitamin B12 and Folate Vitamin D Tests ...

  18. Methylmalonic Acid Test

    Science.gov (United States)

    ... Hormone Binding Globulin (SHBG) Shiga toxin-producing Escherichia coli Sickle Cell Tests Sirolimus Smooth Muscle Antibody (SMA) ... Ratio Valproic Acid Vancomycin Vanillylmandelic Acid (VMA) VAP Vitamin A Vitamin B12 and Folate Vitamin D Tests ...

  19. Methylmalonic acid blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003565.htm Methylmalonic acid blood test To use the sharing features on this page, please enable JavaScript. The methylmalonic acid blood test measures the amount of methylmalonic acid ...

  20. Collecting Samples for Testing

    Science.gov (United States)

    ... Acidosis and Alkalosis Adrenal Insufficiency and Addison Disease Alcoholism Allergies Alzheimer Disease Anemia Angina Ankylosing Spondylitis Anthrax ... through Their Medical Tests Tips to Help the Elderly through Their Medical Tests Related Video View More × ...

  1. Growth hormone test

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003706.htm Growth hormone test To use the sharing features on this page, please enable JavaScript. The growth hormone test measures the amount of growth hormone in ...

  2. Growth hormone suppression test

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003376.htm Growth hormone suppression test To use the sharing features on this page, please enable JavaScript. The growth hormone suppression test determines whether growth hormone production is ...

  3. Lung diffusion testing

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003854.htm Lung diffusion testing To use the sharing features on this page, please enable JavaScript. Lung diffusion testing measures how well the lungs exchange gases. This ...

  4. Cord blood testing

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003403.htm Cord blood testing To use the sharing features on this page, ... the baby to the mother's womb. Cord blood testing can be done to evaluate a newborn's health. ...

  5. Urine concentration test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003608.htm Urine concentration test To use the sharing features on this page, please enable JavaScript. A urine concentration test measures the ability of the kidneys to ...

  6. Flexseal Insulator Test Assembly

    Science.gov (United States)

    Buchanan, Eric

    1995-01-01

    Small-scale version of solid-fuel rocket motor flexseal nozzle bearing assembly instrumented and tested in compression-testing fixture simulating conditions during rocket motor operation described in report.

  7. Vitamin A blood test

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003570.htm Vitamin A blood test To use the sharing features on this page, please enable JavaScript. The vitamin A test measures the level of vitamin A ...

  8. Home blood sugar testing

    Science.gov (United States)

    Diabetes - home glucose testing; Diabetes - home blood sugar testing ... day Your blood sugar level The amount of carbohydrates you ate The type and dose of your diabetes medicine The type of any exercise you do ...

  9. Insensitive Munitions Testing

    Data.gov (United States)

    Federal Laboratory Consortium — Insensitive Munitions Testing at RTC is conducted (IAW MILSTD-2105) at Test Area 4. Our engineers and technicians obtain data for hazards classification and safety...

  10. Hepatitis C Test

    Science.gov (United States)

    ... Testing Leptin Levetiracetam Lipase Lipid Profile Lipoprotein (a) Lithium Liver Panel Lp-PLA2 Lupus Anticoagulant Testing Luteinizing ... common cause of chronic liver disease in North America. The Centers for Disease Control and Prevention (CDC) ...

  11. ANA (Antinuclear Antibody Test)

    Science.gov (United States)

    ... Testing Leptin Levetiracetam Lipase Lipid Profile Lipoprotein (a) Lithium Liver Panel Lp-PLA2 Lupus Anticoagulant Testing Luteinizing ... Scleroderma Elsewhere On The Web Lupus Foundation of America American College of Rheumatology: Antinuclear Antibodies (ANA) American ...

  12. Aldosterone and Renin Test

    Science.gov (United States)

    ... Testing Leptin Levetiracetam Lipase Lipid Profile Lipoprotein (a) Lithium Liver Panel Lp-PLA2 Lupus Anticoagulant Testing Luteinizing ... and other forms of licorice sold in North America do not actually contain licorice. Check the package ...

  13. T3 (Triiodothyronine) Test

    Science.gov (United States)

    ... Testing Leptin Levetiracetam Lipase Lipid Profile Lipoprotein (a) Lithium Liver Panel Lp-PLA2 Lupus Anticoagulant Testing Luteinizing ... For more information, see the Thyroid Foundation of America's web page Thyroid Problems During and After Pregnancy - ...

  14. Pap and HPV Testing

    Science.gov (United States)

    ... endocervical canal itself but also, in some cases, endometrial, extrauterine, and other cancers. What follow-up tests ... cancer risk for women undergoing concurrent testing for human papillomavirus and cervical cytology: A population-based study ...

  15. Leukocyte esterase urine test

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003584.htm Leukocyte esterase urine test To use the sharing features on this page, please enable JavaScript. Leukocyte esterase is a urine test to look for ...

  16. Static Loads Test Facility

    Data.gov (United States)

    Federal Laboratory Consortium — FUNCTION: Provides the capability to perform large-scale structural loads testing on spacecraft and other structures. Results from these tests can be used to verify...

  17. Understanding Laboratory Tests

    Science.gov (United States)

    ... and Drug Administration (FDA) regulates the development and marketing of all laboratory tests that use test kits ... Cancer.gov en español Multimedia Publications Site Map Digital Standards for NCI Websites POLICIES Accessibility Comment Policy ...

  18. Variable Attitude Test Stand

    Data.gov (United States)

    Federal Laboratory Consortium — The Variable Attitude Test Stand designed and built for testing of the V-22 tilt rotor aircraft propulsion system, is used to evaluate the effect of aircraft flight...

  19. Corrosion Testing Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The Corrosion Testing Facility is part of the Army Corrosion Office (ACO). It is a fully functional atmospheric exposure site, called the Corrosion Instrumented Test...

  20. Latex agglutination test

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003334.htm Latex agglutination test To use the sharing features on this page, please enable JavaScript. The latex agglutination test is a laboratory method to check ...

  1. Cross cultural usability testing

    DEFF Research Database (Denmark)

    Clemmensen, Torkil; Goyal, Shivam

    2005-01-01

    In this paper, we present the results of a pilot study in Denmark of cross cultural effects on Think Aloud usability testing. We provide an overview of previous research on cross cultural usability evaluation with a special focus on the relationship between the evaluator and the test user....... This relation was studied in an experiment with usability testing of a localized clipart application in which eight participants from Denmark and India formed pairs of evaluator-test user. The test users were asked to think aloud and the evaluators' role were to facilitate the test users thinking aloud...... and hereby identify usability problems with the clipart application. Data on the evaluators' and test users' behaviour were recorded and analyzed by coding and summarizing statistics on these behavioural events. The results show that Think Aloud Usability Test of a localized application is most effectively...

  2. Strep Throat Test

    Science.gov (United States)

    ... Links Patient Resources For Health Professionals Subscribe Search Strep Throat Test Send Us Your Feedback Choose Topic At ... Tested? To determine if your sore throat is "strep throat" that is caused by group A streptococcus (GAS) ...

  3. Home vision tests

    Science.gov (United States)

    ... or eye disease and you should have a professional eye examination. Amsler grid test: If the grid appears distorted or broken, there may be a problem with the retina . Distance vision test: If you do not read the ...

  4. Ethylene glycol blood test

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003564.htm Ethylene glycol blood test To use the sharing features on this page, ... risk any time the skin is broken) Images Blood test References Chernecky CC, Berger BJ. Ethylene glycol - serum ...

  5. Haptoglobin blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003634.htm Haptoglobin blood test To use the sharing features on this page, please enable JavaScript. The haptoglobin blood test measures the level of haptoglobin in your blood. ...

  6. HCG blood test - qualitative

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003509.htm HCG blood test - qualitative To use the sharing features on this page, please enable JavaScript. A qualitative HCG blood test checks if there is a hormone called human ...

  7. ACTH blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003695.htm ACTH blood test To use the sharing features on this page, ... the adrenal gland . It regulates blood pressure and blood sugar. This test can help find the causes of certain hormone ...

  8. ACE blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003567.htm ACE blood test To use the sharing features on this page, ... Alternative Names Serum angiotensin-converting enzyme; SACE Images Blood test References Chernecky CC, Berger BJ. Angiotensin-converting enzyme ( ...

  9. Pyruvate kinase blood test

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003357.htm Pyruvate kinase blood test To use the sharing features on this page, ... energy when oxygen levels are low. How the Test is Performed A blood sample is needed. In the laboratory, white blood ...

  10. Calcitonin blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003699.htm Calcitonin blood test To use the sharing features on this page, please enable JavaScript. The calcitonin blood test measures the level of the hormone calcitonin in ...

  11. Fibrinopeptide A blood test

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003373.htm Fibrinopeptide A blood test To use the sharing features on this page, ... measure the level of this substance in your blood. How the Test is Performed A blood sample is needed. How ...

  12. ALP - blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003470.htm ALP - blood test To use the sharing features on this page, ... include the liver, bile ducts, and bone. A blood test can be done to measure the level of ...

  13. Aldosterone blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003704.htm Aldosterone blood test To use the sharing features on this page, please enable JavaScript. The aldosterone blood test measures the level of the hormone aldosterone in ...

  14. Phosphorus blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003478.htm Phosphorus blood test To use the sharing features on this page, please enable JavaScript. The phosphorus blood test measures the amount of phosphate in the blood. ...

  15. Anthrax - blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003534.htm Anthrax blood test To use the sharing features on this page, please enable JavaScript. The anthrax blood test looks for antibodies against Bacillus anthracis , the bacteria ...

  16. Ferritin blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003490.htm Ferritin blood test To use the sharing features on this page, please enable JavaScript. The ferritin blood test measures the level of ferritin in the blood. ...

  17. Calcium blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003477.htm Calcium blood test To use the sharing features on this page, please enable JavaScript. The calcium blood test measures the level of calcium in the blood. ...

  18. Leucine aminopeptidase blood test

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003559.htm Leucine aminopeptidase blood test To use the sharing features on this page, ... Alternative Names Serum leucine aminopeptidase; LAP - serum Images Blood test References Chernecky CC, Berger BJ. Leucine aminopeptidase (LAP) - ...

  19. Antidiuretic hormone blood test

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003702.htm Antidiuretic hormone blood test To use the sharing features on this page, please enable JavaScript. Antidiuretic blood test measures the level of antidiuretic hormone (ADH) in ...

  20. LDH isoenzyme blood test

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003499.htm LDH isoenzyme blood test To use the sharing features on this page, ... Names LD; LDH; Lactic (lactate) dehydrogenase isoenzymes Images Blood test References Carty RP, Pincus MR, Sarafraz-Yazdi E. ...

  1. Aldolase blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003566.htm Aldolase blood test To use the sharing features on this page, ... risk any time the skin is broken) Images Blood test References Berridge BR, Van Vleet JF, Herman E. ...

  2. Ammonia blood test

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/003506.htm Ammonia blood test To use the sharing features on this page, ... Encephalopathy - ammonia; Cirrhosis - ammonia; Liver failure - ammonia Images Blood test References Chernecky CC, Berger BJ. Ammonia (NH3) - blood ...

  3. Antibody Blood Tests

    Science.gov (United States)

    Antibody Blood Tests Researchers have discovered that people with celiac disease who eat gluten have higher than normal levels of ... do I do if I have a negative blood test (or panel) but I’m still having symptoms? ...

  4. Antithrombin III blood test

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003661.htm Antithrombin III blood test To use the sharing features on this page, ... a protein that helps control blood clotting. A blood test can determine the amount of AT III present ...

  5. Flight Testing and Test Instrumentation of PHOENIX

    Science.gov (United States)

    Janovsky, R.; Behr, R.

    2005-02-01

    Within the frame of the German national ASTRA program, the need for in-flight experimentation as a key element in the development of the next generation launcher was addressed by the Phoenix project. The Phoenix 1 flight test vehicle was designed to demonstrate the un-powered horizontal landing of a representative, winged RLV configuration. The Phoenix 1 flight test vehicle is downscaled from the reference RLV shape "Hopper", with the dimensions of 7.8m overall length, 3.8m span, and 1200kg mass. In order to be representative of a full scale RLV, the scaling method preserves all features challenging the automatic landing from the flight control point of view. These are in particular the poor flying qualities of the static unstable vehicle and the high landing velocity of 71m/s, which is same as for the full scale vehicle. The landing demonstration scenario comprises a drop from the helicopter approximately 6km ahead of the runway threshold at 2.4km above runway level. The subsequent free flight includes an accelerating dive to merge with a steep final approach path representative of an RLV, followed by a long flare, touch down on the runway, and rollout to standstill. Besides its mandatory avionics system, the vehicle is also equipped with an additional flight test instrumentation to identify local aerodynamic flow and structural stress. This FTI system is designed to collect data by recording about 130 sensor signals during flight. This test instrumentation system was operated during a test campaign dedicated to verify the aerodynamic data base of Phoenix in the Dutch-German Wind-tunnel (DNW) in August 2003 and during three automatic landing flight tests after helicopter drop in May 2004. Post flight analysis of these data allows to validate the design models and the development tools in order to establish a flight validated data base for future work. This paper gives an overview on the Phoenix system including the flight test instrumentation, the test program and

  6. Test Equipment Specifications Transistor

    OpenAIRE

    Didiek Andiana Ramadan; Drs. Linga Hermanto, MMSI Drs. Linga Hermanto, MMSI

    2005-01-01

    In this paper, we design a test apparatus Transistor Specification. Specification is atype of transistor is a transistor and common emitter current reinforcement value ( βDC ). The system will provide information in the form of an LED display emits greenlight when the tested types of NPN transistor and the second LED emits blue lightwhen the tested types of PNP transistors.To test the value of β, whose value is proportional to the display used by the collectorcurrent Ic.

  7. Tests in Print II: An Index to Tests, Test Reviews, and the Literature on Specific Tests.

    Science.gov (United States)

    Buros, Oscar K., Ed.

    Tests in Print II is a comprehensive, annotated bibliography of all in-print tests published as separates for use with English-speaking subjects. The 1,155 two-column pages list 2,467 tests in print as of early 1974; 16,574 references through 1971 on specific tests; a reprinting of the 1974 APA-AERA-NCME Standards for Educational andPsychological…

  8. AMSD Cryo Actuator Testing

    Science.gov (United States)

    Mullette, Mark; Matthews, Gary; Russell, Kevin (Technical Monitor)

    2002-01-01

    The actuator technology required for AMSD and subsequently NGST are critical in the successful development for future cryogenic systems. Kodak has undertaken an extensive test plan to determine the performance of the force actuators developed under the AMSD program. These actuators are currently in testing at MSFC and are expected to finish this test cycle in early June 2002.

  9. Turing Test and After

    Indian Academy of Sciences (India)

    'intelligence' just like a human being. The Turing test provides an unbiased method of comparing intelligent behaviour of humans with that of computers. The. Turing test is repeatable and objective. Turing did not regard his test as a necessary condition for attributing intelligence to machines but only as a sufficient condition.

  10. Testing Vocational English

    Science.gov (United States)

    Pendlebury, A. C.

    1970-01-01

    Defining vocational English as a specific vocabulary of individual words and phases connected with a certain occupation, the author outlines principles of testing, lists types of vocational English tests, and attempts to show that in constructing such tests a whole range of types of question can be used. (FB)

  11. Testing Backbone.js

    CERN Document Server

    Roemer, Ryan

    2013-01-01

    This book is packed with the step by step tutorial and instructions in recipe format helping you setup test infrastructure and gradually advance your skills to plan, develop, and test your backbone applications.If you are a JavaScript developer looking for recipes to create and implement test support for your backbone application, then this book is ideal for you.

  12. Follow-Up Testing

    Science.gov (United States)

    Follow-up Testing Follow-up testing is conducted to ensure that antibody levels are returning to normal, indicating that the intestine is healing on the ... has entered the diet. How often should follow-up testing occur? New celiacs should receive follow-up ...

  13. On Statistical Testing.

    Science.gov (United States)

    Huberty, Carl J.

    An approach to statistical testing, which combines Neyman-Pearson hypothesis testing and Fisher significance testing, is recommended. The use of P-values in this approach is discussed in some detail. The author also discusses some problems which are often found in introductory statistics textbooks. The problems involve the definitions of…

  14. Language Testing in Japan.

    Science.gov (United States)

    Brown, James Dean, Ed.; Yamashita, Sayoko Okada, Ed.

    Papers on second language testing in Japan include: "Differences Between Norm-Referenced and Criterion-Referenced Tests" (James Dean Brown); "Criterion-Referenced Test Construction and Evaluation" (Dale T. Griffe); "Behavioral Learning Objectives as an Evaluation Tool" (Judith A. Johnson); "Developing Norm-…

  15. Dismantling the Mantel tests

    DEFF Research Database (Denmark)

    Guillot, Gilles

    The simple and partial Mantel tests are routinely used in many areas of evolutionary biology to assess the significance of the association between two or more matrices of distances relative to the same pairs of individuals or demes. Partial Mantel tests rather than simple Mantel tests are widely ...... as supporting material....

  16. Usability testing for dummies

    CERN Multimedia

    CERN. Geneva

    2017-01-01

    Usability testing seems complicated and time-consuming. Is it though? In fact, it is the best way to understand how real users experience your product. In this interactive session, we will do a live usability test and you will get advice on how to conduct your own usability tests.

  17. Barron's SAT subject test

    CERN Document Server

    Jansen, MA, Robert

    2016-01-01

    Includes one diagnostic test and three complete tests, all questions answered and explained, self-assessment guides, and subject reviews. Also features test strategies, QR codes to short instructional videos, and a detailed appendix with equations, physical constants, and a basic math review.

  18. About Instruction Sequence Testing

    NARCIS (Netherlands)

    Bergstra, J.A.

    2012-01-01

    Software testing is presented as a so-called theme within which different authors and groups have defined different subjects each of these subjects having a different focus on testing. A uniform concept of software testing is non-existent and the space of possible coherent perspectives on software

  19. Blood Test: Testosterone

    Science.gov (United States)

    ... a Voice in Health Care Decisions Blood Test: Testosterone KidsHealth > For Parents > Blood Test: Testosterone Print A A A What's in this article? ... Análisis de sangre: testosterona What It Is A testosterone test measures the blood level of the male ...

  20. Automated Web Applications Testing

    Directory of Open Access Journals (Sweden)

    Alexandru Dan CĂPRIŢĂ

    2009-01-01

    Full Text Available Unit tests are a vital part of several software development practicesand processes such as Test-First Programming, Extreme Programming andTest-Driven Development. This article shortly presents the software quality andtesting concepts as well as an introduction to an automated unit testingframework for PHP web based applications.

  1. Computerized Mastery Testing.

    Science.gov (United States)

    Lewis, Charles; Sheehan, Kathleen

    1988-01-01

    Introduces a theoretical framework for mastery testing, using Item Response Theory and Bayesian Decision Theory. The idea of sequential testing is developed, with the goal of providing longer or shorter tests as needed, and a computerized application to a hypothetical professional knowledge examination is discussed. (Author/LRW)

  2. Testing for central symmetry

    NARCIS (Netherlands)

    Einmahl, John; Gan, Zhuojiong

    Omnibus tests for central symmetry of a bivariate probability distribution are proposed. The test statistics compare empirical measures of opposite regions. Under rather weak conditions, we establish the asymptotic distribution of the test statistics under the null hypothesis; it follows that they

  3. Dynamic Testing: Toward a Multiple Exciter Test

    Science.gov (United States)

    2015-04-01

    complex electronics and munitions that are more susceptible to fatigue failure increased the potential for vibration to cause catastrophic failures... fatigue equiva- lent laboratory vibration specifications based on measured field data were also advancing. This led to the inclusion of the first fatigue ...critical vibration testing element. The field vibration environment may be described as the simultaneous vibration in three translational and three

  4. 100 statistical tests

    CERN Document Server

    Kanji, Gopal K

    2006-01-01

    This expanded and updated Third Edition of Gopal K. Kanji's best-selling resource on statistical tests covers all the most commonly used tests with information on how to calculate and interpret results with simple datasets. Each entry begins with a short summary statement about the test's purpose, and contains details of the test objective, the limitations (or assumptions) involved, a brief outline of the method, a worked example, and the numerical calculation. 100 Statistical Tests, Third Edition is the one indispensable guide for users of statistical materials and consumers of statistical information at all levels and across all disciplines.

  5. Noninvasive prenatal testing.

    Science.gov (United States)

    Lo, Jamie O; Cori D, Feist; Norton, Mary E; Caughey, Aaron B

    2014-02-01

    Noninvasive prenatal testing (NIPT) refers to recently developed genetic tests of the maternal serum that allow higher detection rates of trisomy 21 and other chromosomal aneuploidies in high-risk pregnancies. Noninvasive prenatal test analyzes cell-free DNA (cfDNA) in the maternal serum. Approximately 3% to 15% of cfDNA in the maternal blood is of fetal origin. Analysis of cfDNA can help identify fetuses affected with trisomy 21 and several other fetal aneuploidies. Testing can be performed after 9 to 10 weeks' gestation and has a higher sensitivity and specificity for trisomy 21 than other aneuploidy screening test. Noninvasive prenatal test has been studied and validated in singleton pregnancies at risk for trisomy 21 secondary to advanced maternal age, an abnormal serum screen, personal or family history of aneuploidy, or abnormal ultrasound findings, if these are suggestive of trisomy 13, 18, or 21. The utilization of NIPT for genetic screening has increased rapidly since introduction of the first clinical test in October 2011. Currently, there are limitations to NIPT including the possibility of test failure (2.6%-5.4%) and the focus on only the common trisomies. Noninvasive prenatal test is a screening test, and both false-positive (0.2%-1%) and false-negative results can occur. As the technology for NIPT is further evaluated, this test is likely to be increasingly used for prenatal screening. This review provides the obstetric clinician with an update of the current issues concerning NIPT.

  6. Sample Proficiency Test exercise

    Energy Technology Data Exchange (ETDEWEB)

    Alcaraz, A; Gregg, H; Koester, C

    2006-02-05

    The current format of the OPCW proficiency tests has multiple sets of 2 samples sent to an analysis laboratory. In each sample set, one is identified as a sample, the other as a blank. This method of conducting proficiency tests differs from how an OPCW designated laboratory would receive authentic samples (a set of three containers, each not identified, consisting of the authentic sample, a control sample, and a blank sample). This exercise was designed to test the reporting if the proficiency tests were to be conducted. As such, this is not an official OPCW proficiency test, and the attached report is one method by which LLNL might report their analyses under a more realistic testing scheme. Therefore, the title on the report ''Report of the Umpteenth Official OPCW Proficiency Test'' is meaningless, and provides a bit of whimsy for the analyses and readers of the report.

  7. Pilocarpine iontophoresis test

    DEFF Research Database (Denmark)

    Hjortskov, N; Jepsen, Leif; Nielsen, B

    1995-01-01

    The pilocarpine iontophoresis test (P-test) is used as a predictor of the capacity to produce sweat. Therefore, we studied the reproducibility of this test in 12 normal subjects on 10 consecutive days. Furthermore, we determined whether the P-test reflects whole-body and regional sweat secretion...... during exercise in the heat. Finally, we determined whether the P-test stimulates the eccrine sweat glands to maximal sweat secretion. Six growth hormone-deficient (GHD) patients who are known to have decreased sweating, and 11 healthy control subjects were studied. To induce maximal sweat secretion......-to-day variation of 20.8% between individual subjects. There was a significant positive correlation between the P-test and regional sweat secretion (r2 = 0.74). The correlation coefficient (r2) was 0.50 for the correlation between the P-test and whole-body sweat secretion, and 0.52 for the correlation between...

  8. Pilocarpine iontophoresis test

    DEFF Research Database (Denmark)

    Hjortskov, N; Jepsen, Leif; Nielsen, B

    1995-01-01

    regional sweat secretion and whole-body sweat secretion. We conclude that the pilocarpine iontophoresis test reflects heat- and exercise-induced sweating capacity. However, this test does not induce maximal sweating, and it cannot be used as a single reliable predictor of whole-body sweating, due......The pilocarpine iontophoresis test (P-test) is used as a predictor of the capacity to produce sweat. Therefore, we studied the reproducibility of this test in 12 normal subjects on 10 consecutive days. Furthermore, we determined whether the P-test reflects whole-body and regional sweat secretion...... during exercise in the heat. Finally, we determined whether the P-test stimulates the eccrine sweat glands to maximal sweat secretion. Six growth hormone-deficient (GHD) patients who are known to have decreased sweating, and 11 healthy control subjects were studied. To induce maximal sweat secretion...

  9. Testing and differentiation

    DEFF Research Database (Denmark)

    Kousholt, Kristine

    This presentation will explore how educational standardized testing becomes meaningful/not meaningful for children and teachers and at the same time how testing becomes part of everyday differentiation and categorization processes. The presentation is based on a 3 year long post doc project...... concerning the practice of standardized testing in the Danish primary and lower secondary school (Folkeskole). The empirical material consists of qualitative interviews of pupils and teachers and participative observations both in and outside test situations in 5 school classes. The theoretical basis...... with regard to; 1) how the technology of testing and children in communities co-constitute the practice in which children take part and becomes measured, 2) the ongoing reproduction and transformation of testing practice and 3) the contradictions and conflicts of testing practice. This theoretical outset...

  10. Sperm function test

    Directory of Open Access Journals (Sweden)

    Pankaj Talwar

    2015-01-01

    Full Text Available With absolute normal semen analysis parameters it may not be necessary to shift to specialized tests early but in cases with borderline parameters or with history of fertilization failure in past it becomes necessary to do a battery of tests to evaluate different parameters of spermatozoa. Various sperm function tests are proposed and endorsed by different researchers in addition to the routine evaluation of fertility. These tests detect function of a certain part of spermatozoon and give insight on the events in fertilization of the oocyte. The sperms need to get nutrition from the seminal plasma in the form of fructose and citrate (this can be assessed by fructose qualitative and quantitative estimation, citrate estimation. They should be protected from the bad effects of pus cells and reactive oxygen species (ROS (leukocyte detection test, ROS estimation. Their number should be in sufficient in terms of (count, structure normal to be able to fertilize eggs (semen morphology. Sperms should have intact and functioning membrane to survive harsh environment of vagina and uterine fluids (vitality and hypo-osmotic swelling test, should have good mitochondrial function to be able to provide energy (mitochondrial activity index test. They should also have satisfactory acrosome function to be able to burrow a hole in zona pellucida (acrosome intactness test, zona penetration test. Finally, they should have properly packed DNA in the nucleus to be able to transfer the male genes (nuclear chromatic decondensation test to the oocyte during fertilization.

  11. Nemesis Autonomous Test System

    Science.gov (United States)

    Barltrop, Kevin J.; Lee, Cin-Young; Horvath, Gregory A,; Clement, Bradley J.

    2012-01-01

    A generalized framework has been developed for systems validation that can be applied to both traditional and autonomous systems. The framework consists of an automated test case generation and execution system called Nemesis that rapidly and thoroughly identifies flaws or vulnerabilities within a system. By applying genetic optimization and goal-seeking algorithms on the test equipment side, a "war game" is conducted between a system and its complementary nemesis. The end result of the war games is a collection of scenarios that reveals any undesirable behaviors of the system under test. The software provides a reusable framework to evolve test scenarios using genetic algorithms using an operation model of the system under test. It can automatically generate and execute test cases that reveal flaws in behaviorally complex systems. Genetic algorithms focus the exploration of tests on the set of test cases that most effectively reveals the flaws and vulnerabilities of the system under test. It leverages advances in state- and model-based engineering, which are essential in defining the behavior of autonomous systems. It also uses goal networks to describe test scenarios.

  12. Testing On Computers

    Directory of Open Access Journals (Sweden)

    Michael Russell

    1999-06-01

    Full Text Available Russell and Haney (1997 reported that open-ended test items administered on paper may underestimate the achievement of students accustomed to writing on computers. This study builds on Russell and Haney's work by examining the effect of taking open-ended tests on computers and on paper for students with different levels of computer skill. Using items from the Massachusetts Comprehensive Assessment System (MCAS and the National Assessment of Educational Progress (NAEP, this study focuses on language arts, science and math tests administered to eighth grade students. In addition, information on students' prior computer use and keyboarding speed was collected. Unlike the previous study that found large effects for open-ended writing and science items, this study reports mixed results. For the science test, performance on computers had a positive group effect. For the two language arts tests, an overall group effect was not found. However, for students whose keyboarding speed is at least 0.5 or one-half of a standard deviation above the mean, performing the language arts test on computer had a moderate positive effect. Conversely, for students whose keyboarding speed was 0.5 standard deviations below the mean, performing the tests on computer had a substantial negative effect. For the math test, performing the test on computer had an overall negative effect, but this effect became less pronounced as keyboarding speed increased. Implications are discussed in terms of testing policies and future research.

  13. Teacher Test Accountability.

    Directory of Open Access Journals (Sweden)

    Larry H. Ludlow

    2001-02-01

    Full Text Available Given the high stakes of teacher testing, there is no doubt that every teacher test should meet the industry guidelines set forth in the Standards for Educational and Psychological Testing. Unfortunately, however, there is no public or private business or governmental agency that serves to certify or in any other formal way declare that any teacher test does, in fact, meet the psychometric recommendations stipulated in the Standards. Consequently, there are no legislated penalties for faulty products (tests nor are there opportunities for test takers simply to raise questions about a test and to have their questions taken seriously by an impartial panel. The purpose of this article is to highlight some of the psychometric results reported by National Evaluation Systems (NES in their 1999 Massachusetts Educator Certification Test (MECT Technical Report, and more specifically, to identify those technical characteristics of the MECT that are inconsistent with the Standards. A second purpose of this article is to call for the establishment of a standing test auditing organization with investigation and sanctioning power. The significance of the present analysis is twofold: a psychometric results for the MECT are similar in nature to psychometric results presented as evidence of test development flaws in an Alabama class-action lawsuit dealing with teacher certification (an NES-designed testing system; and b there was no impartial enforcement agency to whom complaints about the Alabama tests could be brought, other than the court, nor is there any such agency to whom complaints about the Massachusetts tests can be brought. I begin by reviewing NES's role in Allen v. Alabama State Board of Education, 81-697-N. Next I explain the purpose and interpretation of standard item analysis procedures and statistics. Finally, I present results taken directly from the 1999 MECT Technical Report and compare them to procedures, results, and consequences of

  14. Standard Test Method for Sandwich Corrosion Test

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2009-01-01

    1.1 This test method defines the procedure for evaluating the corrosivity of aircraft maintenance chemicals, when present between faying surfaces (sandwich) of aluminum alloys commonly used for aircraft structures. This test method is intended to be used in the qualification and approval of compounds employed in aircraft maintenance operations. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information. 1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements appear in Section 9.

  15. Dynamic impact testing with servohydraulic testing machines

    Science.gov (United States)

    Bardenheier, R.; Rogers, G.

    2006-08-01

    The design concept of “Crashworthiness” requires the information on material behaviour under dynamic impact loading in order to describe and predict the crash behaviour of structures. Especially the transport related industries, like car, railway or aircraft industry, pursue the concept of lightweight design for a while now. The materials' maximum constraint during loading is pushed to permanently increasing figures. This means in terms of crashworthiness that the process of energy absorption in structures and the mechanical behaviour of materials must well understood and can be described appropriately by material models. In close cooperation with experts from various industries and research institutes Instron has developed throughout the past years a new family of servohydraulic testing machines specifically designed to cope with the dynamics of high rate testing. Main development steps are reflected versus their experimental necessities.

  16. Rock Testing Handbook (Test Standards 1993)

    Science.gov (United States)

    1993-01-01

    dimensions should be checked during machining with a micrometer or vernier caliper; final dimensions are normally measured with a micrometer and reported to...maintained at 110 ± 5 ’C. 3.8.6 Micrometer or vernier caliper for measuring length and diameter of •. test specimen. Micrometer or caliper should be direct...and normal to the long axis. Sample dimensions should be checked during machining with a micrometer or vernier caliper; final dimensions are normally

  17. Pilocarpine iontophoresis test

    DEFF Research Database (Denmark)

    Hjortskov, N; Jepsen, Leif; Nielsen, B

    1995-01-01

    The pilocarpine iontophoresis test (P-test) is used as a predictor of the capacity to produce sweat. Therefore, we studied the reproducibility of this test in 12 normal subjects on 10 consecutive days. Furthermore, we determined whether the P-test reflects whole-body and regional sweat secretion...... during exercise in the heat. Finally, we determined whether the P-test stimulates the eccrine sweat glands to maximal sweat secretion. Six growth hormone-deficient (GHD) patients who are known to have decreased sweating, and 11 healthy control subjects were studied. To induce maximal sweat secretion......, the patients exercised on a bicycle ergometer at a workload corresponding to 40% of their maximal aerobic power (VO2max). The 11 healthy subjects exercised at a workload of 150 W. All subjects exercised for 60 min in ambient air at 35 degrees C, with 50% relative humidity. The P-test showed a mean day...

  18. Dismantling the Mantel tests

    DEFF Research Database (Denmark)

    Guillot, Gilles; Rousset, François

    2012-01-01

    1. The simple and partialMantel tests are routinely used in many areas of evolutionary biology to assess the significance of the association between two ormorematrices of distances relative to the same pairs of individuals or demes. Partial Mantel tests rather than simple Mantel tests are widely...... used to assess the relationship between two variables displaying some form of structure. 2. We show that contrary to a widely shared belief, partialMantel tests are not valid in this case, and their bias remains close to that of the simpleMantel test. 3. We confirm that strong biases are expected under...... a sampling design and spatial correlation parameter drawn from an actual study. 4. TheMantel tests should not be used in case autocorrelation is suspected in both variables compared under the null hypothesis.We outline alternative strategies. The R code used for our computer simulations is distributed...

  19. Standard environmental test methods

    Energy Technology Data Exchange (ETDEWEB)

    Schafer, D R

    1983-12-01

    This guide to uniformity in testing is intended primarily as an aid to persons responsible for designing, developing, and performing environmental tests. It will also be of use to those concerned with production, evaluation, and quality control and assurance. Checklists for preparing the environmental testing portion of product specifications are included, as are copies of Process Standards covering the instrumentation, equipment, and methods for use in environmental testing of Sandia National Laboratories components. Techniques and equipment are constantly improving. This version of SC-4452 reflects current state-of-the-art and practice in environmental testing. Previously existing sections of the document have ben updated and new ones have been added, e.g., Transient Testing on Vibration Machines.

  20. Testing of aspheric surfaces

    Science.gov (United States)

    Tiziani, Hans J.; Reichelt, Stephan; Pruss, Christof; Rocktaeschel, M.; Hofbauer, U.

    2001-11-01

    Aspheric surfaces are becoming interesting for the reduction of elements in optical systems as well as for improving the quality of the image forming system. The fabrication process of aspheric surfaces has been improved. For optical testing of aspheric surfaces computer generated holograms (CGHs) are interesting and already used. To perform aspheric testing in the same accuracy as spherical surface testing, further improvements of the CGH-null test method are required. A new concept for testing aspheric surfaces with CGH-nulls, including a calibration of the system, will be described. To specify and verify CGH quality, systematic errors due to fabrication inaccuracies of the CGHs will be analysed. On the other hand, alternative methods that provide more flexibility but possibly less accuracy than the CGH-null technique are required. Potential alternative testing methods of aspherics will be discussed.

  1. Adhesion testing device

    Science.gov (United States)

    LaPeyronnie, Glenn M. (Inventor); Huff, Charles M. (Inventor)

    2010-01-01

    The present invention provides a testing apparatus and method for testing the adhesion of a coating to a surface. The invention also includes an improved testing button or dolly for use with the testing apparatus and a self aligning button hook or dolly interface on the testing apparatus. According to preferred forms, the apparatus and method of the present invention are simple, portable, battery operated rugged, and inexpensive to manufacture and use, are readily adaptable to a wide variety of uses, and provide effective and accurate testing results. The device includes a linear actuator driven by an electric motor coupled to the actuator through a gearbox and a rotatable shaft. The electronics for the device are contained in the head section of the device. At the contact end of the device, is positioned a self aligning button hook, attached below the load cell located on the actuator shaft.

  2. Short apraxia screening test.

    Science.gov (United States)

    Leiguarda, Ramon; Clarens, Florencia; Amengual, Alejandra; Drucaroff, Lucas; Hallett, Mark

    2014-01-01

    Limb apraxia comprises many different and common disorders, which are largely unrecognized essentially because there is no easy-to-use screening test sensitive enough to identify all types of limb praxis deficits. We evaluated 70 right-handed patients with limb apraxia due to a single focal lesion of the left hemisphere and 40 normal controls, using a new apraxia screening test. The test covered 12 items including: intransitive gestures, transitive gestures elicited under verbal, visual, and tactile modalities, imitation of meaningful and meaningless postures and movements, and a multiple object test. Interrater reliability was maximum for a cutoff of >2 positive items identifying apraxia on the short battery (Cohen's kappa .918, p 3 items (Cohen's kappa .768, p 2 was higher, indicating greater apraxia diagnosis agreement between raters at this cutoff value. The screening test proved to have high specificity and sensitivity to diagnose every type of upper limb praxis deficit, thus showing advantages over previously published tests.

  3. Pilocarpine iontophoresis test

    DEFF Research Database (Denmark)

    Hjortskov, N; Jepsen, Leif; Nielsen, B

    1995-01-01

    , the patients exercised on a bicycle ergometer at a workload corresponding to 40% of their maximal aerobic power (VO2max). The 11 healthy subjects exercised at a workload of 150 W. All subjects exercised for 60 min in ambient air at 35 degrees C, with 50% relative humidity. The P-test showed a mean day......The pilocarpine iontophoresis test (P-test) is used as a predictor of the capacity to produce sweat. Therefore, we studied the reproducibility of this test in 12 normal subjects on 10 consecutive days. Furthermore, we determined whether the P-test reflects whole-body and regional sweat secretion...... during exercise in the heat. Finally, we determined whether the P-test stimulates the eccrine sweat glands to maximal sweat secretion. Six growth hormone-deficient (GHD) patients who are known to have decreased sweating, and 11 healthy control subjects were studied. To induce maximal sweat secretion...

  4. The cytocentrifuge NBT test.

    Science.gov (United States)

    Gordon, P A; Stuart, J; Lee, T R; Breeze, G R; Pugh, R N

    1975-01-01

    The NBT test is a non-specific test of neutrophil membrane stimulation which has application to the study of neutrophil function, particularly in the septicaemic patient. An improved cytochemical test which eliminates potential sources of laboratory error has been developed. Venous or capillary blood samples may be studied and the technique can be applied to the neutropenic patient since available neutrophils are concentrated by cytocentrifugation. Clinical evaluation in 443 patients is described. PMID:1184763

  5. Examples Performance Testing Templates.

    Energy Technology Data Exchange (ETDEWEB)

    Siple, Bud H. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2014-07-01

    The purpose of this Performance Testing Program Plan is to identify the process and phased approach that will be implemented at Site XYZ . The purpose of the testing program at Site XYZ is specifically designed to evaluate the effectiveness of systems that are employed at this site. This plan defines tasks to be accomplished to ensure that performance testing is conducted as effectively and efficiently as possible.

  6. Commercial Parts Radiation Testing

    Science.gov (United States)

    2015-01-13

    performing Total Ionizing Dose ( TID ) testing. The project was to be led by the researchers at the Configurable Space Microsystems Innovations and...platform that will allow electrical and physical interconnection to them during the test phase. The way the Total Ionizing Dose ( TID ) testing occurs is...be quite robust in its TID response and is under consideration for several CubeSat missions. Total ionizing dose exposures at high and low dose rates

  7. Improving clinical cognitive testing

    Science.gov (United States)

    Gale, Seth A.; Barrett, A.M.; Boeve, Bradley F.; Chatterjee, Anjan; Coslett, H. Branch; D'Esposito, Mark; Finney, Glen R.; Gitelman, Darren R.; Hart, John J.; Lerner, Alan J.; Meador, Kimford J.; Pietras, Alison C.; Voeller, Kytja S.; Kaufer, Daniel I.

    2015-01-01

    Objective: To evaluate the evidence basis of single-domain cognitive tests frequently used by behavioral neurologists in an effort to improve the quality of clinical cognitive assessment. Methods: Behavioral Neurology Section members of the American Academy of Neurology were surveyed about how they conduct clinical cognitive testing, with a particular focus on the Neurobehavioral Status Exam (NBSE). In contrast to general screening cognitive tests, an NBSE consists of tests of individual cognitive domains (e.g., memory or language) that provide a more comprehensive diagnostic assessment. Workgroups for each of 5 cognitive domains (attention, executive function, memory, language, and spatial cognition) conducted evidence-based reviews of frequently used tests. Reviews focused on suitability for office-based clinical practice, including test administration time, accessibility of normative data, disease populations studied, and availability in the public domain. Results: Demographic and clinical practice data were obtained from 200 respondents who reported using a wide range of cognitive tests. Based on survey data and ancillary information, between 5 and 15 tests in each cognitive domain were reviewed. Within each domain, several tests are highlighted as being well-suited for an NBSE. Conclusions: We identified frequently used single-domain cognitive tests that are suitable for an NBSE to help make informed choices about clinical cognitive assessment. Some frequently used tests have limited normative data or have not been well-studied in common neurologic disorders. Utilizing standardized cognitive tests, particularly those with normative data based on the individual's age and educational level, can enhance the rigor and utility of clinical cognitive assessment. PMID:26163433

  8. Explosive Cratering Performance Tests

    Science.gov (United States)

    1981-07-02

    brush . This omibination of characteristics will enhance test result repeatability. 3.1.2 ’Test Area Selection Parameters. In addition to minimum...slope and absence of brush arr] timber, an optimum test area contains hciw9eneous soil types with virtually identical depth, to allow for constant charge...0 feet, 1 foot, 2 feet, 3 teet , . . . 40 feet. When tapes are fastened to radius stakes at the increment cooresponding to the stake’s distance from

  9. Test for mobility

    Directory of Open Access Journals (Sweden)

    Li Kheng

    2014-06-01

    Full Text Available Mobile application testing is a process by which application software developed for mobile devices is tested, in aspects as functionality, usability and consistency. These applications can be pre-installed or installed from distribution platforms for mobile software. Due mobile devices have witnessed of a phenomenal growth in recent years (a study by Yankee Group predicted to generate $ 4.2 billion in revenue for 2013 through 7000 million downloads of applications the U.S., it is necesary test engineers increasingly specialize. In this article are described the types of applications, the challenges of testing, and its automation.

  10. Reactor Simulator Testing

    Science.gov (United States)

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

    2013-01-01

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

  11. GRE physics test

    CERN Document Server

    Fakhrudin, Hasan

    2010-01-01

    Designed for students and professionals looking to advance their careers, our test prep gives you everything you need to succeed. Focused chapter reviews cover all the information tested on the GRE Physics exam. Each review chapter contains examples to reinforce key concepts. The book includes four full-length practice tests based on the most recent GRE Physics exam. Each test contains every type of question that can be expected on the GRE so you can “practice for real” and boost your confidence before taking the exam.

  12. Leak test fitting

    Science.gov (United States)

    Pickett, P.T.

    A hollow fitting for use in gas spectrometry leak testing of conduit joints is divided into two generally symmetrical halves along the axis of the conduit. A clip may quickly and easily fasten and unfasten the halves around the conduit joint under test. Each end of the fitting is sealable with a yieldable material, such as a piece of foam rubber. An orifice is provided in a wall of the fitting for the insertion or detection of helium during testing. One half of the fitting also may be employed to test joints mounted against a surface.

  13. [Test anxiety: various aspects].

    Science.gov (United States)

    Farnè, M; Sebellico, A

    1989-06-01

    "Academic achievement anxiety" (or "test anxiety") is a situation-specific anxiety. In this research, 53 medical student were subjected to the McNair et al. POMS (an inventory assessing six identifiable mood or affective states) during their psychology examination; 31 of them had been tested with the POMS also 50-70 days before the examination and the other 22 repeated the test 50-70 days after it. All the emotional states increased significantly during the examination, except the Anger-Hostility factor; the significance of the "period effect" for the Confusion-Bewilderment factor shows there is a state of confusion due to the novelty of the test.

  14. Charcoal filter testing

    Energy Technology Data Exchange (ETDEWEB)

    Lyons, J. [Nuclear Regulatory Commission, Washington, DC (United States)

    1997-08-01

    In this very brief, informal presentation, a representative of the US Nuclear Regulatory Commission outlines some problems with charcoal filter testing procedures and actions being taken to correct the problems. Two primary concerns are addressed: (1) the process to find the test method is confusing, and (2) the requirements of the reference test procedures result in condensation on the charcoal and causes the test to fail. To address these problems, emergency technical specifications were processed for three nuclear plants. A generic or an administrative letter is proposed as a more permanent solution. 1 fig.

  15. Refrigeration Test Chamber

    Data.gov (United States)

    Federal Laboratory Consortium — The enclosed and environmentally controlled chamber is able to test four units (single-phase) simultaneously at conditions ranging from tundra to desert temperatures...

  16. Dryden Aeronautical Test Range

    Data.gov (United States)

    Federal Laboratory Consortium — Recently redesignated to honor Dr. Hugh L. Dryden, NASA's Dryden Aeronautical Test Range (DATR) supports aerospace flight research and technology integration, space...

  17. Pulmonary function testing.

    Science.gov (United States)

    Ruppel, Gregg L; Enright, Paul L

    2012-01-01

    Pulmonary function testing is often considered the basis for diagnosis in many categories of pulmonary disease. Although most of the testing methodologies are well established and widely employed, there are still many questions regarding how tests should be performed, how to ensure that reliable data are produced, what reference values and rules should be used, and how pulmonary function tests (PFTs) should be interpreted to best support clinical decision making. This conference was organized around a set of questions aimed at many of these issues. Each presenter was asked to address a specific topic regarding what tests should be done, how those test should be performed to answer a particular clinical question, and to relate test results to an accurate diagnosis and appropriate treatment of the patient. These topics included testing of adults and children, with concentration on important disease entities such as COPD, asthma, and unexplained dyspnea. Special emphasis was given to discussing reference values, lower limits of normal, interpretive strategies to optimize disease classification, and those factors directly affecting data quality. Established techniques for spirometry, lung volumes, diffusing capacity, exercise testing, and bronchial challenges were compared and contrasted with new technologies, and with technologies that might be part of pulmonary function laboratories in the near future.

  18. Pavement Testing Facility

    Data.gov (United States)

    Federal Laboratory Consortium — Comprehensive Environmental and Structural AnalysesThe ERDC Pavement Testing Facility, located on the ERDC Vicksburg campus, was originally constructed to provide an...

  19. Main Test Floor (MTF)

    Data.gov (United States)

    Federal Laboratory Consortium — Purpose: The MTF is employed to validate advanced structural concepts and verify new analytical methodologies. Test articles range in size from subcomponent to full...

  20. Test dig selv!

    DEFF Research Database (Denmark)

    Hølge-Hazelton, Bibi; Nielsen, Gregers; Langstrup, Henriette

    2011-01-01

    Teknologirådet omkring rapporten ”Test dig selv! – Vurderinger og anbefalinger vedrørende anvendelse medicinsk udstyr til selvtestning. Offentliggjort d. 25.10.11.......Teknologirådet omkring rapporten ”Test dig selv! – Vurderinger og anbefalinger vedrørende anvendelse medicinsk udstyr til selvtestning. Offentliggjort d. 25.10.11....

  1. Robust test limits

    NARCIS (Netherlands)

    Albers, Willem/Wim; Kallenberg, W.C.M.; Otten, G.D.

    1997-01-01

    Because of inaccuracies of the measurement process inspection of manufactured parts requires test limits which are more strict than the given specification limits. Test limits derived under the assumption of normality for product characteristics turn out to violate the prescribed bound on the

  2. Neonatal Screening Tests.

    Science.gov (United States)

    Vigue, Charles L.

    1986-01-01

    Describes several laboratory experiments that are adaptations of clinical tests for certain genetic diseases in babies. Information and procedures are provided for tests for phenylketonuria (PKU), galactosemia, tyrosinemia, cystinuria, and mucopolysaccharidosis. Discusses the effects of each disease on the infants' development. (TW)

  3. National geothermal test facility

    Energy Technology Data Exchange (ETDEWEB)

    1976-03-01

    A brief description of the East Mesa test site is given. The test facility is supplied by brines from three of the existing production wells, each brine having distinctive physical characteristics. Some of the experimental programs involving heat exchangers and power cycles are briefly discussed. These include binary fluid cycles, two-phase expansion cycles, and combination cycles. (MOW)

  4. Testing as social practice

    DEFF Research Database (Denmark)

    Kousholt, Kristine

    2016-01-01

    In this article, the author challenges the implicit assumptions of tests as a neutral tool for measuring the individual’s learning achievement. Instead, testing is explored as a social practice which becomes part of children’s conduct of everyday life. The theoretical foundation for the analysis...

  5. CSF glucose test

    Science.gov (United States)

    Glucose test - CSF; Cerebrospinal fluid glucose test ... The glucose level in the CSF should be 50 to 80 mg/100 mL (or greater than 2/3 ... Abnormal results include higher and lower glucose levels. Abnormal ... or fungus) Inflammation of the central nervous system Tumor

  6. Testing for seasonality

    NARCIS (Netherlands)

    Ph.H.B.F. Franses (Philip Hans)

    1992-01-01

    textabstractThis paper proposes a general-to-simple test procedure for the presence of seasonal patterns in time series, which is based on tests for parameter restrictions in a general periodic model. The method is illustrated for the U.K. stock price index and the U.S. CLI index.

  7. Solenoid Testing Facility

    Data.gov (United States)

    Federal Laboratory Consortium — Current Configuration: Accommodate a device under test up to 2.8 m diameter, 0.7 m height and 15,000 lbs. weight. Up to 10 g/s, 4.5 K helium flow. Up to 250 A test...

  8. SNL Abuse Testing Manual.

    Energy Technology Data Exchange (ETDEWEB)

    Orendorff, Christopher [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Lamb, Joshua [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Steele, Leigh Anna Marie [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-07-01

    This report describes recommended abuse testing procedures for rechargeable energy storage systems (RESSs) for electric vehicles. This report serves as a revision to the FreedomCAR Electrical Energy Storage System Abuse Test Manual for Electric and Hybrid Electric Vehicle Applications (SAND2005-3123).

  9. Reduction in language testing

    DEFF Research Database (Denmark)

    Dimova, Slobodanka; Jensen, Christian

    2013-01-01

    /video recorded speech samples and written reports produced by two experienced raters after testing. Our findings suggest that reduction or reduction-like pronunciation features are found in tested L2 speech, but whenever raters identify and comment on such reductions, they tend to assess reductions negatively...

  10. Non-destructive testing

    Energy Technology Data Exchange (ETDEWEB)

    Hull, B.; John, V.

    1988-01-01

    This text covers, the underlying principles and some major applications of non-destructive inspection methods. Complete chapters are devoted to each of the following: liquid penetration inspection, magnetic particle inspection, electrical testing, ultrasonic testing and radiography. The concluding chapter introduces the reader to some of the more recent developments in non-destructive inspection.

  11. Vocational Aptitude Test

    Directory of Open Access Journals (Sweden)

    Candiasa I Made

    2018-01-01

    Full Text Available Test for measuring vocational aptitude has been formulated and validated. There are three main constructs involved in vocational aptitude test, which are individual characteristics, activities that are likely to be selected, and professions that tend to be idolized. Individual characteristics indicate the individuals talents, whereas the activity that tends to be chosen leads to student interest in the activity, and the intended profession gives clues about the capability of themselves to pursue the profession. Content validity test with Lawse technique yields content validity ratio (CVR for all items are in the range 0.82-0.94 and content validity index (CVI = 0.88. The construct validity test yields comparative fit index (CFI = 0.918 and chi square coefficient (χ2 = 5.85 with significance (p = 0.002. These findings indicate that the test is valid either by content or construct. Furthermore, the reliability test with Alpha Cronbach found the alpha coefficient (α = 0.82. Finally, it can be concluded that vocational aptitude test can be utilized for early identification of student vocational aptitude. The hope, the test can help students to choose the appropriate vocational school, in order to obtain the better learning outcomes.

  12. CLEAR test facility

    CERN Multimedia

    Ordan, Julien Marius

    2017-01-01

    A new user facility for accelerator R&D, the CERN Linear Electron Accelerator for Research (CLEAR), started operation in August 2017. CLEAR evolved from the former CLIC Test Facility 3 (CTF3) used by the Compact Linear Collider (CLIC). The new facility is able to host and test a broad range of ideas in the accelerator field.

  13. Evaluating diagnostic tests

    African Journals Online (AJOL)

    Adele

    Appraising the predictive abilities of diagnostic tests can be surprisingly difficult. The purpose of this article is to provide an introduction to the principles underlying the objective evaluation of diagnostic tests. Starting from basic concepts about probability,. Bayes' theorem will be introduced and an explanation given as to.

  14. Preparing for CLIC tests

    CERN Multimedia

    Laurent Guiraud

    1999-01-01

    The Canon 5 undergoes first brazing for preparation in the CLIC study at the CLIC Test Facility 2 (CTF2). This will test injection for a proposed linear collider that will further explore discoveries made at the LHC. Electric fields in the canon will boost electrons into the acceleration fields of the collider.

  15. Tests of Cognitive Ability

    Science.gov (United States)

    2005-12-01

    specific abilities while Ree and others (Olea & Ree, 1994; Ree, TESTS OF GENERAL COGNITIVE ABILITY 9 Carretta, & Doub , 1998/1999; Ree, Carretta...Ree, M. J., Carretta, T. R., & Doub , T. (1998/1999). A Test of Three Models of the Role of g and Prior Job Knowledge in the Acquisition of Subsequent

  16. An Academic Definitions Test

    Science.gov (United States)

    Isbell, Daniel Richard

    2017-01-01

    L2 vocabulary is commonly conceptualized in terms of a size or depth of one's total lexical knowledge and tested discretely with selection-type items. Concerns exist, however, regarding L2 users' ability to cope with unknown vocabulary, especially in the context of academic reading. This motivated the creation of a test which measures the ability…

  17. Test Fairness: A Response

    Science.gov (United States)

    Davies, Alan

    2010-01-01

    This article presents the author's response to Xiaoming Xi's paper titled "How do we go about investigating test fairness?" In the paper, Xi offers "a means to fully integrate fairness investigations and practice". Given the current importance accorded to fairness in the language testing community, Xi makes a case for viewing fairness as an aspect…

  18. Over the air test

    DEFF Research Database (Denmark)

    2015-01-01

    [1] This invention relates to over-the-air testing of a device in an anechoic chamber. In particular, the invention is suitable for simulating both uplink and downlink over-the-air communication with a device under test even when the anechoic chamber has different numbers of uplink and downlink...

  19. Testing Timed Automata

    NARCIS (Netherlands)

    Springintveld, Jan; Vaandrager, Frits; d' Argenio, P.R.

    2001-01-01

    We present a generalization of the classical theory of testing for Mealy machines to a setting of dense real-time systems. A model of timed I/O automata is introduced, inspired by the timed automaton model of Alur and Dill, together with a notion of test sequence for this model. Our main

  20. Testing Timed Automata

    NARCIS (Netherlands)

    Springintveld, Jan; Vaandrager, Frits; d' Argenio, P.R.

    We present a generalization of the classical theory of testing for Mealy machines to a setting of dense real-time systems. A model of timed I/O automata is introduced, inspired by the timed automaton model of Alur and Dill, together with a notion of test sequence for this model. Our main

  1. Testing object Interactions

    NARCIS (Netherlands)

    Grüner, Andreas

    2010-01-01

    In this thesis we provide a unit testing approach for multi-purposes object-oriented programming languages in the style of Java and C#. Our approach includes the definition of a test specification language which results from extending the programming language with new designated specification

  2. Loglinear Rasch model tests

    NARCIS (Netherlands)

    Kelderman, Hendrikus

    1984-01-01

    Existing statistical tests for the fit of the Rasch model have been criticized, because they are only sensitive to specific violations of its assumptions. Contingency table methods using loglinear models have been used to test various psychometric models. In this paper, the assumptions of the Rasch

  3. Helicobacter pylori Test

    Science.gov (United States)

    ... Pagana, T. J., and Pagana, T. N. (© 2015). Mosby's Diagnostic & Laboratory Test Reference 12th Edition: Mosby, Inc., Saint Louis, MO. Pp 494-496. Sources ... health/ . Accessed February 2008. Pagana K, Pagana T. Mosby's Manual of Diagnostic and Laboratory Tests. 3rd Edition, ...

  4. Blood Urea Nitrogen Test

    Science.gov (United States)

    ... Pagana, T. J., and Pagana, T. N. (© 2015). Mosby's Diagnostic & Laboratory Test Reference 12th Edition: Mosby, Inc., Saint Louis, MO. Pp 946-948. Sources ... Edition]. Pagana, Kathleen D. & Pagana, Timothy J. (2001). Mosby's Diagnostic and Laboratory Test Reference 5th Edition: Mosby, ...

  5. Evaluating Communicative Tests.

    Science.gov (United States)

    Morrow, Keith

    The influence of the communicative approach to second language teaching on the design of the new Certificates in Communicative Skills in English tests is examined, and the evaluation of the tests in practice is discussed from that perspective. It is proposed that a number of characteristics of the new series should relate directly and consciously…

  6. Chemical Reactivity Test (CRT)

    Energy Technology Data Exchange (ETDEWEB)

    Zaka, F. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-12-13

    The Chemical Reactivity Test (CRT) is used to determine the thermal stability of High Explosives (HEs) and chemical compatibility between (HEs) and alien materials. The CRT is one of the small-scale safety tests performed on HE at the High Explosives Applications Facility (HEAF).

  7. Animal testing and medicine

    National Research Council Canada - National Science Library

    Hajar, Rachel

    2011-01-01

    ..., introduced animal testing as an experimental method for testing surgical procedures before applying them to human patients. In recent years, the practice of using animals for biomedical research has come under severe criticism by animal protection and animal rights groups. Laws have been passed in several countries to make the practice more 'humane...

  8. Automate functional testing

    Directory of Open Access Journals (Sweden)

    Ramesh Kalindri

    2014-06-01

    Full Text Available Currently, software engineers are increasingly turning to the option of automating functional tests, but not always have successful in this endeavor. Reasons range from low planning until over cost in the process. Some principles that can guide teams in automating these tests are described in this article.

  9. Protein S blood test

    Science.gov (United States)

    ... in your body that prevents blood clotting. A blood test can be done to see how much of ... Certain medicines can change blood test results: Tell your health care provider about all the medicines you take. Your provider will tell you if you need ...

  10. Protein C blood test

    Science.gov (United States)

    ... in the body that prevents blood clotting. A blood test can be done to see how much of ... Certain medicines can change blood test results. Tell your health care provider about all the medicines you take. Your provider will tell you if you need ...

  11. Blood Differential Test

    Science.gov (United States)

    ... disorder or related condition What happens during a blood differential test? A health care professional will take a sample of your blood by using a small needle to draw blood from a vein in your arm. The needle is attached to a test tube, which will store your sample. When the ...

  12. Thermal Testing Measurements Report

    Energy Technology Data Exchange (ETDEWEB)

    R. Wagner

    2002-09-26

    The purpose of the Thermal Testing Measurements Report (Scientific Analysis Report) is to document, in one report, the comprehensive set of measurements taken within the Yucca Mountain Project Thermal Testing Program since its inception in 1996. Currently, the testing performed and measurements collected are either scattered in many level 3 and level 4 milestone reports or, in the case of the ongoing Drift Scale Test, mostly documented in eight informal progress reports. Documentation in existing reports is uneven in level of detail and quality. Furthermore, while all the data collected within the Yucca Mountain Site Characterization Project (YMP) Thermal Testing Program have been submitted periodically to the Technical Data Management System (TDMS), the data structure--several incremental submittals, and documentation formats--are such that the data are often not user-friendly except to those who acquired and processed the data. The documentation in this report is intended to make data collected within the YMP Thermal Testing Program readily usable to end users, such as those representing the Performance Assessment Project, Repository Design Project, and Engineered Systems Sub-Project. Since either detailed level 3 and level 4 reports exist or the measurements are straightforward, only brief discussions are provided for each data set. These brief discussions for different data sets are intended to impart a clear sense of applicability of data, so that they will be used properly within the context of measurement uncertainty. This approach also keeps this report to a manageable size, an important consideration because the report encompasses nearly all measurements for three long-term thermal tests. As appropriate, thermal testing data currently residing in the TDMS have been reorganized and reformatted from cumbersome, user-unfriendly Input-Data Tracking Numbers (DTNs) into a new set of Output-DTNs. These Output-DTNs provide a readily usable data structure

  13. Cylinder Test Specification

    Energy Technology Data Exchange (ETDEWEB)

    Richard Catanach; Larry Hill; Herbert Harry; Ernest Aragon; Don Murk

    1999-10-01

    The purpose of the cylinder testis two-fold: (1) to characterize the metal-pushing ability of an explosive relative to that of other explosives as evaluated by the E{sub 19} cylinder energy and the G{sub 19} Gurney energy and (2) to help establish the explosive product equation-of-state (historically, the Jones-Wilkins-Lee (JWL) equation). This specification details the material requirements and procedures necessary to assemble and fire a typical Los Alamos National Laboratory (LANL) cylinder test. Strict adherence to the cylinder. material properties, machining tolerances, material heat-treatment and etching processes, and high explosive machining tolerances is essential for test-to-test consistency and to maximize radial wall expansions. Assembly and setup of the cylinder test require precise attention to detail, especially when placing intricate pin wires on the cylinder wall. The cylinder test is typically fired outdoors and at ambient temperature.

  14. Testing for Chronic Diarrhea.

    Science.gov (United States)

    Raman, M

    Chronic diarrhea is a frequently encountered symptom in clinical practice. The etiologies for chronic diarrhea are diverse and broad with varying clinical implications. A useful method of categorizing chronic diarrhea to guide a diagnostic work-up is a pathophysiology-based framework. Chronic diarrhea may be categorized as malabsorptive, secretory, osmotic, and inflammatory or motility related. Frequently, overlap between categories may exist for any given diarrhea etiology and diagnostic testing must occur with an understanding of the differential diagnosis. Investigations to achieve a diagnosis for chronic diarrhea range from screening blood and stool tests to more directed testing such as diagnostic imaging, and endoscopic and histological evaluation. The pathophysiology-based framework proposed in this chapter will allow the clinician to select screening tests followed by targeted tests to minimize cost and complications to the patient, while providing a highly effective method to achieve an accurate diagnosis. © 2017 Elsevier Inc. All rights reserved.

  15. Testing of rotor blades

    Energy Technology Data Exchange (ETDEWEB)

    Busmann, H.G.; Kensche, C.; Berg-Pollack, A.; Buerkner, F.; Sayer, F.; Wiemann, K. [Fraunhofer-Center fuer Windenergie- und Meerestechnik, Bremerhaven (Germany)

    2007-02-15

    Current approval of rotor blades comprises characterization of materials, full-blade tests with static up- and down-bending, and a modal analysis. In addition to these tests, cyclic testing of full-size rotor blades is increasingly discussed to become subject of official certification procedures. Open questions regarding their operational relevance, large investment costs and long duration of up to 4 months for forthcoming large blades now deepen the demand for a new testing methodology. Component testing and scaling methods, highly developed calculation methods, and the definition of blade families of closely related structures are proposed to increase the relevance as well as to decrease costs and duration of the approval procedure. (orig.)

  16. Biocide patch tests

    DEFF Research Database (Denmark)

    Andersen, Klaus Ejner; Veien, Niels

    1985-01-01

    Routine patch testing with a series of 6 industrial biocides containing methylene-bis-thiocyanate (Cytox 3522), benzisothiazolin-3-one (BIT), chlorocresol (Preventol CMK), 2-n-octyl-4-isothiazolin-3-one (Kathon 893), polyhydroxymethylene monobenzylether (Preventol D2) or 1,3,5-tris (hydroxy......-ethyl) hexahydrotriazine (Grotan BK) was carried out in 6 Danish out-patient clinics to evaluate guinea pig allergy test results with the same compounds. A total of 1652 consecutive patients with dermatitis were tested. The usefulness of this patch test battery was limited. There were a few positive reactions to Cytox...... of male patients and atopics, but significant differences in the frequencies of occupational cases, hand eczemas, and leg ulcers/stasis dermatitis, indicating possible variations in referral patterns, use of patch tests, and/or environmental factors....

  17. LHC synchronization test successful

    CERN Multimedia

    The synchronization of the LHC's clockwise beam transfer system and the rest of CERN's accelerator chain was successfully achieved last weekend. Tests began on Friday 8 August when a single bunch of a few particles was taken down the transfer line from the SPS accelerator to the LHC. After a period of optimization, one bunch was kicked up from the transfer line into the LHC beam pipe and steered about 3 kilometres around the LHC itself on the first attempt. On Saturday, the test was repeated several times to optimize the transfer before the operations group handed the machine back for hardware commissioning to resume on Sunday. The anti-clockwise synchronization systems will be tested over the weekend of 22 August.Picture:http://lhc-injection-test.web.cern.ch/lhc-injection-test/

  18. Mechanical Testing of MLCCs

    Science.gov (United States)

    Teverovsky, Alexander A.

    2016-01-01

    Cracking of multilayer ceramic capacitors, MLCCs, remains a serious problem for space systems. This problem increases substantially for large size capacitors and in cases when manual soldering is involved or the system experiences mechanical shock or vibration. In any case, a fracture occurs when the sum of external and internal mechanical stresses exceeds the strength of the part. To reduce the probability of cracking, the level of stress should be reduced, e.g. by optimizing the assembly workmanship and rules for board design, and the strength of the parts increased by selecting the most mechanically robust capacitors. The latter might possibly be achieved by selecting MLCCs based on the in-situ measurements of mechanical characteristics using four types of tests: flexural strength, hardness, fracture toughness, and flex bend testing. Note that military specifications MIL-PRF-123 and MIL-PRF-55681 do not have requirements for mechanical testing of the parts. However, specifications for automotive industry components employ two types of mechanical tests: beam load (break strength) test per AEC-Q200-003 and board flex test per AEC-Q200-005. A recent military specification for thin dielectric capacitors, MIL-PRF-32535, has one mechanical test, board flex testing, that is similar to AEC-Q200-005. The purpose of this report was assessment of the efficiency of different mechanical tests for selection robust capacitors and comparison of mechanical characteristics of Base Metal Electrode (BME) and Precious Metal Electrode (PME) capacitors. The report has three parts related to the first three mechanical tests mentioned above.

  19. Determinants of HIV testing.

    Science.gov (United States)

    Sawleshwarkar, Shailendra; Harrison, Christopher; Britt, Helena; Mindel, Adrian

    2011-08-01

    To determine the characteristics of general practitioners (GPs) who test and patients who are tested for HIV in Australia. A secondary analysis of data from the Bettering the Evaluation and Care of Health programme; a cross-sectional, national survey of GP activity. We identified GP, patient and encounter characteristics that were associated with HIV testing between April 2000 and March 2010. We looked at testing rates for patients with different characteristics, whether they had attended for screening and GP 'risk factor' identification. Multiple logistic regression was used to measure the independent effect of each GP, patient and encounter characteristic on testing for HIV. Data were available for 984,200 encounters from 9842 GPs. 1796 (18.2%) of GPs performed at least one HIV test. On logistic regression, independent predictors of HIV testing included the management of a 'risk factor' (OR 19.4, 95% CI 17.4 to 21.6), screening (OR 10.6, 95% CI 9.4 to 12.1), younger GP age, practice in a metropolitan area (OR 1.4, 95% CI 1.2 to 1.6), patient age, gender (male > female OR 3.0, 95% CI 2.7 to 3.3), being new to that practice (OR 2.1, 95% CI 1.8 to 2.3) and being Indigenous (OR 1.7, 95% CI 1.3 to 2.4). The most significant independent predictors of testing were identification of a risk factor and attendance for screening. Unless barriers to testing are addressed it is unlikely that altering guidelines alone will improve testing rates and reduce transmission.

  20. Flushable reagent stool blood test

    Science.gov (United States)

    Stool occult blood test - flushable home test; Fecal occult blood test - flushable home test ... This test is performed at home with disposable pads. You can buy the pads at the drug store without ...

  1. What Is Genetic Ancestry Testing?

    Science.gov (United States)

    ... Testing What is genetic ancestry testing? What is genetic ancestry testing? Genetic ancestry testing, or genetic genealogy, ... mixed with other groups. For more information about genetic ancestry testing: The University of Utah provides video ...

  2. Mathematics Admission Test Remarks

    Directory of Open Access Journals (Sweden)

    Ideon Erge

    2016-12-01

    Full Text Available Since 2014, there have been admission tests in mathematics for applicants to the Estonian University of Life Sciences for Geodesy, Land Management and Real Estate Planning; Civil Engineering; Hydraulic Engineering and Water Pollution Control; Engineering and Technetronics curricula. According to admission criteria, the test must be taken by students who have not passed the specific mathematics course state exam or when the score was less than 20 points. The admission test may also be taken by those who wish to improve their state exam score. In 2016, there were 126 such applicants of whom 63 took the test. In 2015, the numbers were 129 and 89 and in 2014 150 and 47 accordingly. The test was scored on scale of 100. The arithmetic average of the score was 30.6 points in 2016, 29.03 in 2015 and 18.84 in 2014. The test was considered to be passed with 1 point in 2014 and 20 points in 2015 and 2016. We analyzed test results and gave examples of problems which were solved exceptionally well or not at all.

  3. Invalid Permutation Tests

    Directory of Open Access Journals (Sweden)

    Mikel Aickin

    2010-01-01

    Full Text Available Permutation tests are often presented in a rather casual manner, in both introductory and advanced statistics textbooks. The appeal of the cleverness of the procedure seems to replace the need for a rigorous argument that it produces valid hypothesis tests. The consequence of this educational failing has been a widespread belief in a “permutation principle”, which is supposed invariably to give tests that are valid by construction, under an absolute minimum of statistical assumptions. Several lines of argument are presented here to show that the permutation principle itself can be invalid, concentrating on the Fisher-Pitman permutation test for two means. A simple counterfactual example illustrates the general problem, and a slightly more elaborate counterfactual argument is used to explain why the main mathematical proof of the validity of permutation tests is mistaken. Two modifications of the permutation test are suggested to be valid in a very modest simulation. In instances where simulation software is readily available, investigating the validity of a specific permutation test can be done easily, requiring only a minimum understanding of statistical technicalities.

  4. Acoustic Model Testing Chronology

    Science.gov (United States)

    Nesman, Tom

    2017-01-01

    Scale models have been used for decades to replicate liftoff environments and in particular acoustics for launch vehicles. It is assumed, and analyses supports, that the key characteristics of noise generation, propagation, and measurement can be scaled. Over time significant insight was gained not just towards understanding the effects of thruster details, pad geometry, and sound mitigation but also to the physical processes involved. An overview of a selected set of scale model tests are compiled here to illustrate the variety of configurations that have been tested and the fundamental knowledge gained. The selected scale model tests are presented chronologically.

  5. GTK beam test 2017

    CERN Document Server

    Vostinic, Snezana

    2017-01-01

    The GTK is in operation at NA62 since 2014 and is among the few silicon pixel detectors performing 4D tracking. This summer, a beam test was conducted to study the phenomena determining the detector time resolution. The project described here contributed to the beam test preparation, data taking and data analyses. One of the main goals of the test was to understand the weight field contribution to the detector time resolution. This field is distorting the signal pulse shape at the edge of the pixel. Hence, to study this effect, the position of the hits inside the pixel has to be determined. An external telescope was therefore used for this purpose.

  6. Laboratory testing in hyperthyroidism.

    Science.gov (United States)

    Grebe, Stefan K G; Kahaly, George J

    2012-09-01

    The clinical diagnosis of hypo- or hyperthyroidism is difficult (full text available online: http://education.amjmed.com/pp1/272). Clinical symptoms and signs are often non-specific, and there is incomplete correlation between structural and functional thyroid gland changes. Laboratory testing is therefore indispensible in establishing the diagnosis of thyrotoxicosis. Similar considerations apply to treatment monitoring. Laboratory testing also plays a crucial role in establishing the most likely cause for a patient's hyperthyroidism. Finally, during pregnancy, when isotopic scanning is relatively contraindicated and ultrasound is more difficult to interpret, laboratory testing becomes even more important. Copyright © 2012. Published by Elsevier Inc.

  7. Test Track Facilities

    Science.gov (United States)

    1979-12-01

    Gradients 48 16/19 3.17 Offset Towing Course 52 20 3.18 Straight and Level course 56 22 3.19 Suspension Courses 589a. Mrv 58 8 b. Boulder 59 8I c. Camera...Track 59 d. Setts 59 5/6t 3.20 Wading Pool 66 34 3.21 Field Dynamometer 68 39 3.22 Winch Test Facility 70 10 3.23 General Vehicle ( Dynamometer ) 73 4...PERCENT GRADE (1 IN 2) 18 TEST GRADIENT 33.3 PERCENT GRAD (1 IN 3) 19 TEST GRADIENT 25 PERCENT GRADE (I IN 4) 20 OFFSET TOWING SUSPENSION COURSE 21 OUTER

  8. Software Testing as Science

    Directory of Open Access Journals (Sweden)

    Ingrid Gallesdic

    2013-06-01

    Full Text Available The most widespread opinion among people who have some connection with software testing is that this activity is an art. In fact, books have been published widely whose titles refer to it as art, role or process. But because software complexity is increasing every year, this paper proposes a new approach, conceiving the test as a science. This is because the processes by which they are applied are the steps of the scientific method: inputs, processes, outputs. The contents of this paper examines the similarities and test characteristics as science.

  9. Software Testing as Science

    Directory of Open Access Journals (Sweden)

    Ingrid Gallesdic

    2013-07-01

    Full Text Available The most widespread opinion among people who have some connection with software testing is that this activity is an art. In fact, books have been published widely whose titles refer to it as art, role or process. But because software complexity is increasing every year, this paper proposes a new approach, conceiving the test as a science. This is because the processes by which they are applied are the steps of the scientific method: inputs, processes, outputs. The contents of this paper examines the similarities and test characteristics as science.

  10. Rapid prototype and test

    Energy Technology Data Exchange (ETDEWEB)

    Gregory, D.L.; Hansche, B.D.

    1996-06-01

    In order to support advanced manufacturing, Sandia has acquired the capability to produce plastic prototypes using stereolithography. Currently, these prototypes are used mainly to verify part geometry and ``fit and form`` checks. This project investigates methods for rapidly testing these plastic prototypes, and inferring from prototype test data actual metal part performance and behavior. Performances examined include static load/stress response, and structural dynamic (modal) and vibration behavior. The integration of advanced non-contacting measurement techniques including scanning laser velocimetry, laser holography, and thermoelasticity into testing of these prototypes is described. Photoelastic properties of the epoxy prototypes to reveal full field stress/strain fields are also explored.

  11. Instant testing with QUnit

    CERN Document Server

    Sheiko, Dmitry

    2013-01-01

    Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. A concise guide full of step-by-step recipes to teach you how to perform automated testing using QUnit.""Instant Testing with QUnit"" is for anyone working with JavaScript who is looking for a powerful and easy-to-use testing framework. The reader does not need to know any particular framework, only the basic principles of JavaScript and HTML.

  12. TestComplete cookbook

    CERN Document Server

    Alpaev, Gennadiy

    2013-01-01

    A practical cookbook, with a perfect package of simple, medium, and advanced recipes targeted at basic programmers as well as expert software testers, who will learn to create, manage, and run automated tests. It is packed with problem-solving recipes that are supported by simple examples.If you are a software tester or a programmer who is involved with testing automation using TestComplete, this book is ideal for you! You will be introduced to the very basics of using the tool, as well as polish any previously gained knowledge in using the tool. If you are already aware of programming basics,

  13. Application testing with Capybara

    CERN Document Server

    Robbins, Matthew

    2013-01-01

    Start performing integration testing with Capybara immediately. This book will get you up and running quickly and assumes no knowledge or experience of the technology.This book is for developers and testers who have had some exposure to Ruby but who want to know how to test their applications using Capybara and its compatible drivers, such as Selenium-Webdriver and Rack-Test. The examples are deliberately kept simple and example HTML mark-up is always included so that you can copy the examples to practice and experiment on your own machine.

  14. Testing children for allergies

    DEFF Research Database (Denmark)

    Eigenmann, P A; Atanaskovic-Markovic, M; O'B Hourihane, J

    2013-01-01

    Allergic diseases are common in childhood and can cause a significant morbidity and impaired quality-of-life of the children and their families. Adequate allergy testing is the prerequisite for optimal care, including allergen avoidance, pharmacotherapy and immunotherapy. Children with persisting...... or recurrent or severe symptoms suggestive for allergy should undergo an appropriate diagnostic work-up, irrespective of their age. Adequate allergy testing may also allow defining allergic trigger in common symptoms. We provide here evidence-based guidance on when and how to test for allergy in children based...... on common presenting symptoms suggestive of allergic diseases....

  15. CPK isoenzymes test

    Science.gov (United States)

    ... such as dexamethasone This list is not all-inclusive. How the Test will Feel You may feel ... Cardiology, Harborview Medical Center, University of Washington Medical School, Seattle, WA. Also reviewed by David Zieve, MD, ...

  16. Glucose test (image)

    Science.gov (United States)

    ... person with diabetes constantly manages their blood's sugar (glucose) levels. After a blood sample is taken and tested, it is determined whether the glucose levels are low or high. Following your health ...

  17. Practical acoustic emission testing

    CERN Document Server

    2016-01-01

    This book is intended for non-destructive testing (NDT) technicians who want to learn practical acoustic emission testing based on level 1 of ISO 9712 (Non-destructive testing – Qualification and certification of personnel) criteria. The essential aspects of ISO/DIS 18436-6 (Condition monitoring and diagnostics of machines – Requirements for training and certification of personnel, Part 6: Acoustic Emission) are explained, and readers can deepen their understanding with the help of practice exercises. This work presents the guiding principles of acoustic emission measurement, signal processing, algorithms for source location, measurement devices, applicability of testing methods, and measurement cases to support not only researchers in this field but also and especially NDT technicians.

  18. Dementia: Diagnosis and Tests

    Science.gov (United States)

    ... our e-newsletter! Aging & Health A to Z Dementia Diagnosis & Tests If you or someone you care ... To determine whether an older adult might have dementia, a healthcare professional will: Ask about the person’s ...

  19. ACTH (Adrenocorticotropic Hormone) Test

    Science.gov (United States)

    ... Factor Antibody Iron Iron Tests JAK2 Mutation Kidney Stone Analysis Kidney Stone Risk Panel KRAS Mutation Lactate Lactate Dehydrogenase (LD) ... Frequent nighttime urination Unexplained weight loss Hot flashes Cold sensitivity When the condition is due to a ...

  20. Dengue Fever Testing

    Science.gov (United States)

    ... Factor Antibody Iron Iron Tests JAK2 Mutation Kidney Stone Analysis Kidney Stone Risk Panel KRAS Mutation Lactate Lactate Dehydrogenase (LD) ... passing blood in the stool, difficulty breathing and cold clammy skin, especially in the extremities. During the ...

  1. Thyroid Diseases Tests

    Science.gov (United States)

    ... Factor Antibody Iron Iron Tests JAK2 Mutation Kidney Stone Analysis Kidney Stone Risk Panel KRAS Mutation Lactate Lactate Dehydrogenase (LD) ... functions; symptoms include weight gain, dry skin, constipation, cold intolerance, puffy skin, hair loss, fatigue, and menstrual ...

  2. CK-MB Test

    Science.gov (United States)

    ... gamma-carboxy prothrombin (DCP) DHEAS Diabetes-related Autoantibodies Digoxin Direct Antiglobulin Test Direct LDL Cholesterol Drug Abuse ... Gout Graves Disease Guillain-Barré Syndrome Hashimoto Thyroiditis Heart Attack and Acute Coronary Syndrome Heart Disease Hemochromatosis Hemoglobin ...

  3. CK (Creatine Kinase) Test

    Science.gov (United States)

    ... gamma-carboxy prothrombin (DCP) DHEAS Diabetes-related Autoantibodies Digoxin Direct Antiglobulin Test Direct LDL Cholesterol Drug Abuse ... Gout Graves Disease Guillain-Barré Syndrome Hashimoto Thyroiditis Heart Attack and Acute Coronary Syndrome Heart Disease Hemochromatosis Hemoglobin ...

  4. hs-CRP Test

    Science.gov (United States)

    ... year than any other cause, according to the American Heart Association. A number of risk factors, such as family ... the American College of Cardiology Foundations and the American Heart Association says that hs-CRP testing may be useful ...

  5. Test Your Sodium Smarts

    Science.gov (United States)

    ... You may be surprised to learn how much sodium is in many foods. Sodium, including sodium chloride ... foods with little or no salt. Test your sodium smarts by answering these 10 questions about which ...

  6. Final focus test beam

    Energy Technology Data Exchange (ETDEWEB)

    1991-03-01

    This report discusses the following: the Final Focus Test Beam Project; optical design; magnets; instrumentation; magnetic measurement and BPM calibration; mechanical alignment and stabilization; vacuum system; power supplies; control system; radiation shielding and personnel protection; infrastructure; and administration.

  7. Airborne Test Bed Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The Laboratory operates the main hangar on the Hanscom Air Force Base flight line. This very large building (~93,000sqft) accommodates the Laboratory's airborne test...

  8. Testing for Kidney Disease

    Science.gov (United States)

    ... Chronic Kidney Disease? Causes of CKD Tests & Diagnosis Albuminuria: Albumin in the Urine Managing CKD Eating Right ... better. Having albumin in the urine is called albuminuria . A healthy kidney doesn’t let albumin pass ...

  9. FTA-ABS test

    Science.gov (United States)

    ... blood test to detect antibodies to the bacteria Treponema pallidum, which causes syphilis. ... 59. Radolf JD, Tramont EC, Salazar JC. Syphilis ( Treponema pallidum ). In: Bennett JE, Dolin R, Blaser MJ, eds. ...

  10. Materials Test Station

    Data.gov (United States)

    Federal Laboratory Consortium — When completed, the Materials Test Station at the Los Alamos Neutron Science Center will meet mission need. MTS will provide the only fast-reactor-like irradiation...

  11. Testing for Kidney Disease

    Science.gov (United States)

    ... hypertension artérielle Heart Disease Mineral & Bone Disorder Chronic Kidney Disease Tests & Diagnosis How can I tell if I have kidney disease? Early kidney disease usually doesn’t have any ...

  12. Vitamin D Test

    Science.gov (United States)

    ... AACC products and services. Advertising & Sponsorship: Policy | Opportunities Vitamin D Tests Share this page: Was this page helpful? Also known as: Ergocalciferol (Vitamin D 2 ); Cholecalciferol (Vitamin D 3 ); Calcidiol (25- ...

  13. Urea nitrogen urine test

    Science.gov (United States)

    ... levels usually indicate: Increased protein breakdown in the body Too much protein intake Risks There are no risks with this test. Alternative Names Urine urea nitrogen Images Female urinary tract Male urinary tract References Agarwal R. Approach to the ...

  14. LH (Luteinizing Hormone) Test

    Science.gov (United States)

    ... Sources Used in Previous Reviews Corbett, JV. Laboratory Tests & Diagnostic Procedures with Nursing Diagnoses, 4th ed. Stamford, Conn.: Appleton & Lang, 1996. pp. 429-431, 726. Clinical Guide to ...

  15. Lab and Imaging Tests

    Science.gov (United States)

    ... to test you for certain genetic, cellular or molecular characteristics that will help him or her treat ... Drug Listings Radiation Therapy Immunotherapy Chimeric Antigen Receptor (CAR) T-Cell Therapy Vaccine Therapy Stem Cell Transplantation ...

  16. TBG - blood test

    Science.gov (United States)

    ... salicylates, including aspirin Male hormones, including androgens and testosterone Prednisone How the Test will Feel When the ... Wisse, MD, Associate Professor of Medicine, Division of Metabolism, Endocrinology & Nutrition, University of Washington School of Medicine, ...

  17. Lactate dehydrogenase test

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003471.htm Lactate dehydrogenase test To use the sharing features on this page, please enable JavaScript. Lactate dehydrogenase (LDH) is a protein that helps produce energy ...

  18. Dengue Fever Testing

    Science.gov (United States)

    ... Links Patient Resources For Health Professionals Subscribe Search Dengue Fever Testing Send Us Your Feedback Choose Topic ... Images View Sources Ask Us Also Known As Dengue Fever Antibodies Dengue Fever Virus Formal Name Dengue ...

  19. Allergy Skin Tests

    Science.gov (United States)

    ... medications: Know your options Allergy skin tests About Advertisement Mayo Clinic does not endorse companies or products. ... a Job Site Map About This Site Twitter Facebook Google YouTube Pinterest Mayo Clinic is a not- ...

  20. Rh Factor Blood Test

    Science.gov (United States)

    ... June 3, 2015. Rh factor blood test About Advertisement Mayo Clinic does not endorse companies or products. ... a Job Site Map About This Site Twitter Facebook Google YouTube Pinterest Mayo Clinic is a not- ...