WorldWideScience

Sample records for tubulacoes para transporte

  1. Effect of the welding process on the microstructure and microhardness of API 5L X80 steel welded joint used for oil transportation pipeline; Efeito do processo de soldagem sobre a microestrutura e a microdureza de juntas soldadas de aco API 5L X80 usado em tubulacoes para transporte de petroleo

    Energy Technology Data Exchange (ETDEWEB)

    Alves, R.T.P.; Albuquerque, S.F. [Universidade Federal de Campina Grande (UFCG), PB (Brazil); Maciel, T.M.; Almeida, D.M.; Santos, M.A.

    2008-07-01

    This study had as objective to evaluate the microstructure and microhardness of API 5L X80 steel welded joints, used for pipelines to transport oil and gas, using the Shield Metal Arc Welding process with pre- heating temperature of 200 deg C and 400 deg C and the AWS E8010G electrode as filler metal. For this, besides the microhardness of the welded joint, the weld metals percentiles of micro-constituents and of columnar and regenerated grains and the medium size and extension of the heat affected zone were evaluated. The percentage of acicular ferrite in weld metal ranged from 13% to 33% which generated values of microhardness from 114 HV to 309 HV. (author)

  2. Controlador empotrado en FPGA para Sistema Inteligente de Transporte

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    Alejandro José Cabrera Sarmiento

    2011-11-01

    Full Text Available 1024x768 Normal 0 21 false false false ES X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} En el presente trabajo se expone la concepción, desarrollo e implementación de un controlador empotrado en un FPGA de Xilinx para ser utilizado en un Sistema Inteligente de Transporte (SIT. La estructura hardware del controlador está basada en la utilización de diversos módulos de propiedad intelectual del sistema de procesamiento MicroBlaze y el soporte de software está basado en la utilización del sistema operativo Petalinux. El controlador empotrado dispone de interfaces Ethernet, USB, UART, SPI e I2C para la comunicación con los diferentes niveles jerárquicos del SIT. Ha sido implementado sobre una placa de desarrollo basada en un FPGA Spartan3E de 1.200 k compuertas, ocupando un 59% de sus recursos configurables. El resto de los recursos disponibles en el FPGA permite, además de la posible actualización del controlador, la implementación hardware de algoritmos que requieren una alta velocidad de procesamiento.

  3. Análisis de soldadura de una plataforma para transporte de maquinaria pesada

    OpenAIRE

    Armijo Verdezoto, Ivan Rodrigo; Serano V, Omar

    2009-01-01

    El presente trabajo trata del “Análisis de Soldadura de una Plataforma para Transporte de Maquinaria Pesada”, así como del costo de construcción de dicha estructura ampliamente usada en el campo del transporte y alquiler de maquinaria en el Ecuador, teniendo también otras diversas formas de uso para esta plataforma siempre y cuando estén dentro del límite de capacidad (30ton); usos tales como transporte de tanques, vigas de grandes dimensiones, etc. Se realizó un análisis previo a la est...

  4. CABOTAGEM UMA ALTERNATIVA ECONÔMICA DE TRANSPORTE EFICAZ PARA O BRASIL

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    Leandra Machado Gonçalves

    2011-06-01

    Full Text Available O presente artigo apresenta o panorama atual do transporte marítimo por Cabotagem no Brasil. Fez-se um breve descritivo do contexto em que se situa a Cabotagem no segmento do transporte marítimo no Brasil destacando suas vantagens, avaliando as condições para sua viabilidade, apontando os principais entraves e reformas necessárias para o desenvolvimento do setor portuário Destacou-se as políticas de estímulo ao transporte aquaviário e de infra-estrutura que estão sendo implantadas assim como as medidas implementadas para minimizar as limitações a Cabotagem e sugeridas novas medidas. Foi enfatizada a vocação marítima do Brasil, o cenário atual da economia que favorecem o crescimento da Cabotagem, o crescimento do transporte multimodal e principalmente a mobilização de portos e armadores para mostrar a via marítima como diferencial competitivo e vantagens comerciais assim como de que forma o crescimento da navegação de Cabotagem poderá contribuir para a mudança da Matriz de Transporte Brasileira. .

  5. Herramienta web para calcular el impacto radiologico asociado al transporte de residuos radiactivos al ATC

    OpenAIRE

    Calleja Rubio, Jose Antonio; Gutierrez Martin, Fernando; Colón Hernández, Cristobal

    2012-01-01

    Técnicos de TECNATOM, S.A. e Investigadores de la (UPM), han desarrollado un programa para analizar la logística y los impactos potenciales del transporte por carretera de materiales radiactivos en España. El transporte de materiales radiactivos es un tema de renovado interés en nuestro país debido a la creciente movilidad que cabe esperar, sobre todo tras la entrada en operación del almacén temporal centralizado (ATC) previsto para los próximos años. Este almacén está destinado a resi...

  6. Rosa, el nuevo color del feminismo: un análisis del transporte exclusivo para mujeres

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    Amy DUNCKEL-GRAGLIA

    2013-01-01

    Full Text Available Este artículo explora la relación entre la movilidad urbana de las mujeres y la violencia en su contra en el transporte público. En particular, explora los temas de género que influyen en el abuso sexual en tal transporte, con atención tanto en los roles tradicionales de la mujer como ama de casa y no como una figura pública, así como en el debate innato o adquirido en la explicación del comportamiento del hombre. Dado que los servicios de transporte exclusivo para mujeres fueron implementados para resolver problemas entre la mujer y el hombre, sirven como un punto de referencia para discutir estos temas de género. Este estudio examina, analiza y evalúa el transporte sólo para mujeres y los efectos que el mismo tiene sobre la movilidad de ellas en relación con estos debates de género. Concluye que el “transporte rosa” ayuda a las mujeres a romper la trampa entre lo público y lo privado en la que están atrapadas al llevar el tema de la discriminación de género a la atención del público.

  7. Rosa, el nuevo color del feminismo: un análisis del transporte exclusivo para mujeres

    OpenAIRE

    Amy DUNCKEL-GRAGLIA

    2013-01-01

    Este artículo explora la relación entre la movilidad urbana de las mujeres y la violencia en su contra en el transporte público. En particular, explora los temas de género que influyen en el abuso sexual en tal transporte, con atención tanto en los roles tradicionales de la mujer como ama de casa y no como una figura pública, así como en el debate innato o adquirido en la explicación del comportamiento del hombre. Dado que los servicios de transporte exclusivo para mujeres fueron implementado...

  8. BEST Project: bioethanol for sustainable transportation; Projeto BEST: bioetanol para o transporte sustentavel

    Energy Technology Data Exchange (ETDEWEB)

    Moreira, J.R.; Velazquez, S.M.S.G.; Apolinario, S.M.; Melo, E.H.; Elmadjian, P.H. [Universidade de Sao Paulo (IEE/CENBIO/USP), SP (Brazil). Inst. de Eletrotecnica e Energia. Centro Nacional de Referencia em Biomassa

    2008-07-01

    The BEST Project BioEthanol for Sustainable Transport aims to promote the ethanol usage, replacing diesel, in the urban public transport in Brazil and worldwide. Apart from Sao Paulo, leading city in the Americas, another eight cities located in Europe and Asia takes part in the project. One of the Brazilian project's goals is to evaluate ethanol usage as diesel fuel replacement in public transport buses by comparatively following the operational output of the experimental fleet, taking as reference an equivalent diesel bus. The utilized test vehicles will be evaluated and monitored to demonstrate ethanol energetic efficiency and, after the results the BEST project and the European Union will set a blue print for public policies to incentive ethanol usage in the urban public transport. The results will allow identifying technical and economical barriers that will eventually overlap the viability process of this technology in the Brazilian public transport. (author)

  9. BEST Project: bioethanol for sustainable transportation; Projeto BEST: bioetanol para o transporte sustentavel

    Energy Technology Data Exchange (ETDEWEB)

    Moreira, J R; Velazquez, S M.S.G.; Apolinario, S M; Melo, E H; Elmadjian, P H [Universidade de Sao Paulo (IEE/CENBIO/USP), SP (Brazil). Inst. de Eletrotecnica e Energia. Centro Nacional de Referencia em Biomassa

    2008-07-01

    The BEST Project BioEthanol for Sustainable Transport aims to promote the ethanol usage, replacing diesel, in the urban public transport in Brazil and worldwide. Apart from Sao Paulo, leading city in the Americas, another eight cities located in Europe and Asia takes part in the project. One of the Brazilian project's goals is to evaluate ethanol usage as diesel fuel replacement in public transport buses by comparatively following the operational output of the experimental fleet, taking as reference an equivalent diesel bus. The utilized test vehicles will be evaluated and monitored to demonstrate ethanol energetic efficiency and, after the results the BEST project and the European Union will set a blue print for public policies to incentive ethanol usage in the urban public transport. The results will allow identifying technical and economical barriers that will eventually overlap the viability process of this technology in the Brazilian public transport. (author)

  10. Calidad del transporte neonatal en el Valle del Cauca: un reto para salud

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    Luis Alexander Lovera Montilla

    2014-01-01

    Full Text Available Introducción: El transporte neonatal es un procedimiento que involucra la exposición al riesgo dependiendo de la complejidad de la patología y de la calidad con que se efectúe. Este estudio pretende evaluar la seguridad en el transporte a recién nacidos que ingresan a una unidad neonatal como un atributo de calidad. Materiales y Métodos: Estudio descriptivo transversal que utilizó un muestreo por conveniencia. La representatividad se determinó de manera subjetiva evaluando el proceso de transporte, recursos humanos, recursos técnicos e insumos. La información se obtuvo de dos fuentes: a Encuesta aplicada a los pediatras asistenciales de la unidad neonatal para conocer su percepción sobre la seguridad del transporte; b Instrumento aplicado al personal profesional y técnico que acompañó 118 transportes. Resultados: De los 118 transportes, el 46% fue realizado por paramédicos; el 76%, en Unidades de Transporte Asistencial Básico (TAB, sólo el 33% del personal responsable de la atención del recién nacido tiene entrenamiento neonatal; el 82% de estos transportes no llevó registro de signos vitales, ni de otras variables fisiológicas requeridas para valorar el estado clínico del neonato durante el traslado; el 76% no verificó la lista de chequeo de insumos y de materiales previo a cada remisión desconociendo su importancia. Por consiguiente, se incrementó el riesgo en la atención, impactando negativamente la calidad del procedimiento. Discusión y Conclusiones: Las instituciones de salud que ofrecen transporte neonatal deben garantizar que todos los neonatos que requieran el servicio lo obtengan en condiciones de calidad y equidad, que minimicen los factores de riesgo y posibiliten la supervivencia en las instituciones receptoras.

  11. Citibikes de Colombia. La bicicleta publica: sistema alternativo de transporte para Santafe de Bogota

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    Javier Enrique Ramos

    2000-12-01

    Full Text Available EI objetivo del presente artículo es presentar una nueva propuesta en materia de transporte urbano, teniendo en cuenta el cada vez más restringido uso del automóvil particular y la ineficiencia de los actuales médicos de transporte público. En la primera parte del trabajo se presenta un panorama general de la importancia de los sistemas de transporte en las ciudades y cómo afectan la vida de sus habitantes. También se muestra la situación actual del transite en Bogotá y la necesidad de implantar sistemas alternativos de transporte. En la segunda parte, se propone el diseño de un sistema en línea de alquiler de bicicletas denominado Bicicleta Publica, que sea parte integral del Sistema integrado de transporte para Santafé de Bogotá. Para cumplir con este propósito se presentan los lineamientos generales mediante un plan de negocios, que conduzca a la creación de una empresa que administre el sistema y los servicios conexos. EI plan de negocios pretende cubrir la mayor parte de la ciudad, ubicando estaciones de bicicleta publica en diferentes lugares, principalmente en las áreas de influencia de las universidades, parques, centros comerciales y, en un futuro, en las estaciones de Transmilenio y el Metro. Esto le brinda al usuario la posibilidad de tomar una bicicleta en un punto determinado y retornarla en otra estación diferente a donde la alquiló inicialmente. Las ventajas de este mecanismo son apreciables, ya que no representa complicación alguna para el usuario debido a que puede usar la bicicleta el tiempo deseado sin preocuparse por aspectos tales como el estacionamiento, el clima o las diferentes actividades, para lo cual la bicicleta propia sería un completo inconveniente.

  12. Cabotagem como alternativa para o transporte de carnes da região Sul para o Norte/Nordeste brasileiro: um estudo de caso

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    Arlei Luiz Fachinello

    2008-12-01

    Full Text Available O custo do transporte de mercadorias é um dos fatores relevantes na competitividade da maioria dos produtos. Visando reduzí-lo, empresas buscam constantemente alternativas mais eficientes para deslocar seus produtos das fábricas até os mercados consumidores. Nesse contexto, este trabalho analisa a viabilidade econômica do transporte de carnes suína e de frango, via cabotagem, da região Sul do Brasil para as regiões Norte e Nordeste. Para isso, utilizou-se um modelo de otimização de custo de transporte por programação linear, focalizando um estudo de caso. Os resultados indicam que os custos de transporte já não são mais restrições ao uso da cabotagem para esse fim.The transportation costs are one of the main factors for companies' competitiveness. In order to decrease the costs, companies are frequently searching for different ways to transport their products to their consumers. This paper analyzes the economic viability of meat transport from the South to the North and Northeast of Brazil, using intercoastal port services. Using a transport cost optimization model and linear programming, our results indicate the economic feasibility of this option.

  13. Risk identification applied to pipe supports structures on detailing phase; Identificacao de riscos aplicada a atividade de projeto de estruturas para suportes de tubulacoes industriais

    Energy Technology Data Exchange (ETDEWEB)

    Balbi, Diego Junca de Gonzaga; Cruz, Rodrigo Luiz Neves [Promon Engenharia, Sao Paulo, SP (Brazil); Morano, Cassia Andrea Ruotolo [Universidade Federal Fluminense (UFF), Niteroi, RJ (Brazil)

    2012-07-01

    The increasing demand for speed in the delivering process of projects in the Oil and Gas has forced a rethink on contracting strategies for fabrication and supply of facilities steel structures, equipment, pipes and other components that represent a critical path activities regarding construction on field. The consolidation of information necessary for the acquisition of these features is a multidisciplinary is based on steps of basic/conceptual, detail, construction, commissioning and startup of the plants. Among the specialties that make up the vast majority of enterprises of this industry, mechanical, civil, electrical and piping engineering are the most important ones. Being piping engineer the main subject of this paper. For each of the specialties above there are structured subsystems, with more specific functions in relation to the content, area and position. These disciplines are connected, some in a higher level than others, and constitute a network of exchange based on necessary information to perform the tasks inherent in each specialty. The present paper aims to identify risk factors that exist during the design phase in the discipline of piping, specifically on the activity of detailing structures to withstand loads from its own weight, weight of the fluid and thermal insulation, as well as efforts from its thermal expansion, addressing its sources and possible actions. Thus, a preliminary risk analysis is presented to point out the most critical items and its importance levels. (author)

  14. Specifications for offshore pipeline - an analysis of installers needs versus manufacturers capabilities; Especificacoes para tubulacoes off-shore - uma analise das necessidades do instalador versus capacidade dos fabricantes

    Energy Technology Data Exchange (ETDEWEB)

    Fernandes, Mauricio; Godoy, Mauricio; Ferreira; Sergio; Kojima, Sergio

    2003-07-01

    The development of off-shore gas fields on the last years led to a sophistication on the methods of laying the pipes. This consequently led to specifications more and more stringent on the characteristics of the pipes that may interfere with the weld in barges or ships, notoriously when using automatic girth welding. The main restrictions are on pipe length, and dimensional characteristics such as: straightness; out of roundness; weld off-set, as well as chemistry. To cope with this trend the pipe mills had to make new developments and investments, and the cost of production of the pipes increased. Considering the real needs of the final customer, we concluded that some requirements are too stringent, leading to a final increase of the final cost of the installed pipeline, as some requirements that apparently save some installation costs, are difficult to be obtained during pipe fabrication, and cause increase on the final cost of it. This paper was made considering UOE/Three bend roll-SAW pipes, diameter 24'' and bigger. (author)

  15. Transport simulation of mangoes irradiated for exportation; Simulacao do transporte de mangas irradiadas para exportacao

    Energy Technology Data Exchange (ETDEWEB)

    Broisler, Paula Olhe

    2007-07-01

    It had been studied the effect of the ionizing radiation (gamma) in mangoes for exportation, simulating the stage of preservation of the fruit during its transport, through the refrigeration in cold chamber. In a first stage they had been analyzed through loss of weight, pH, treatable acidity, soluble solid, texture and decomposition. Later, sensorial analyses had been become fulfilled (alterations of color, odor, flavor, texture). The assays had been carried through in two stadiums of maturation of the fruits, that is, 2 and 3, with the intention of studying optimum point of harvest for the best dosage of irradiation. The results disclose together that the treatment of the mangoes Tommy Atkins in the dose of 0,75 kGy was significant, with the fruit in stadium 2, for the retardation of the matureness and consequent profit of time for the exportation. (author)

  16. Vehículos tipo para el transporte urbano de pasajeros en Colombia

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    Jorge Sánchez Gómez

    1988-01-01

    Full Text Available Con el copatrocinio del Instituto Nacional del Transporte - INTRA Y en el marco del Proyecto de Consumo, Conservación y Sustitución de Energía en el sector transporte, realizado conjuntamente por el Ministerio de Obras Públicas y Transporte, el Ministerio de Minas y Energía, el Departamento Nacional de Planeación y la Organización de Estados Americanos - OEA, la Universidad Nacional de Colombia a través del Instituto de Ensayos e Investigación de la Facultad de Ingeniería desarrolló el estudio "Diseño Optimizado de un Vehículo Diesel de Pasajeros para Operación Urbana en Colombia", comúnmente conocido como "Bus Tipo". En una primera parte se analiza cuales son las características predominantes en el transporte colectivo de pasajeros en las trece (13 principales ciudades colombianas teniendo en cuenta los aspectos del equipo, de la infraestructura y de la estructura o sistema de transporte; en la segunda parte se proponen soluciones para cada uno de los principales problemas encontrados en los aspectos considerados y en la tercera parte se hace la especificación de las principales características técnicas de tres (3 buses tipo o patrón en los tamaños mediano y grande de acuerdo con las normas internacionales. El estudio se complementa con un programa de mantenimiento y con cuatro (4 modelos matemáticos sobre comportamiento mecánico de los buses.

  17. O problema do transporte rodoviario para o escoamento da soja produzida no Centro-Oeste brasileiro

    OpenAIRE

    Vivian Helena Capacle

    2007-01-01

    Resumo:A região Centro-Oeste do país se destaca como um pólo produtor de soja, constituindo-se em um exemplo típico de região de fronteira. A expansão para a área de fronteira agrícola foi incentivada pelo governo, entre os anos 60-70, amparada por uma base infra-estrutural de transportes rodoviários. A partir dos anos 80, pela crise fiscal do Estado, o setor agrícola perde o apoio que tinha e a malha rodoviária brasileira perde participação nos recursos públicos para investimentos em sua amp...

  18. Estudo e aplicação de transporte colaborativo para cargas de grande volume

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    Rui Carlos Botter

    2006-04-01

    Full Text Available Esta pesquisa objetiva realizar um estudo de "Transporte Colaborativo" para grandes volumes, especificamente para conjugação de cargas no transporte rodoviário. A proposta é desenvolver uma metodologia capaz de conciliar e flexibilizar as restrições impostas pelas janelas de tempo, de modo a interferir nos níveis hierárquicos de decisão, minimizando gastos em fretes e consolidando os conceitos de transporte colaborativo em uma aplicação real. No nível estratégico: contribuir no planejamento dos locais de armazenagem; no nível tático: determinar o momento e origem da retirada; e no nível operacional: tratar especificamente a execução da conjugação das cargas. A aplicação ocorre suportada por um banco de dados com 411.852 registros, utilizando modelagem matemática para um caso no agronegócio brasileiro. Os resultados obtidos são muito satisfatórios e projetarão redução no frete rodoviário da ordem de R$ 12,7 milhões por ano, na base de dados coletada, se a metodologia aqui proposta for implantada em sua plenitude.This research proposes to carry out a study of Collaboration Transportation of large volumes, especially for conjugation of cargoes in the trucking transportation. This work presents a capable methodology to reconcile the needs of the transport with the imposed time windows restraints, coming to help in those restraints to interfere in hierarchy the decision levels. The interface in the strategic level is to contribute in the planning time of storage; the tactical planning level is to determination of the time windows and origin; the operational level is the specific operation from the conjugation of the shipments. The available primary database for the application to this case possesses 411.852 that support the application study in using a mathematical model. The results obtained were very satisfactory. Those results project a freight reduction about R$ 12,7 million per year, in the database available, if

  19. Desarrollo de manuales para la inspección y revisión de instalaciones petrolíferas para uso propio, para suministro a vehículos y transporte de mercancías peligrosas por carretera

    OpenAIRE

    Cardell Bilbao, Pablo Juan

    2010-01-01

    El objetivo de este proyecto es la realización de un manual que aúne y clarifique toda la documentación, la normativa y los procedimientos necesarios para cumplir las auditorías (revisiones e inspecciones) en las instalaciones existentes, los trámites para la apertura de nuevas instalaciones para suministro a vehículos (especialmente las Estaciones de Servicio (EESS), y para Usos Propios (UUPP) en Canarias, y el transporte de mercancías peligrosas por carretera (ADR), mostrando el procedimien...

  20. Optimización de la oferta vial para el transporte privado de la ciudad de Azogues

    OpenAIRE

    Cabrera Vélez, Sonia Lucía

    2017-01-01

    La optimización de la oferta vial para el transporte privado en la ciudad de Azogues, se obtiene a través de la implementación de los Sistemas Inteligentes de Transporte, que son un conjunto de soluciones diseñadas para mejorar la operación y seguridad del transporte. Enmarcados en este concepto, dentro de la Ciudad de Azogues, se estudió este tema debido al crecimiento de la flota vehicular, en gran parte, producto del aumento económico de los ingresos familiares por el fenómeno migratorio, ...

  1. Metodología para estudio de demanda de transporte público de pasajeros en zonas rurales

    Directory of Open Access Journals (Sweden)

    John Jairo Posada Henao

    2010-01-01

    Full Text Available En el artículo se presenta una metodología de estudio para identificar la demanda de transporte público de pasajeros en rutas de transporte rurales (veredales y los resultados obtenidos de su aplicación en un Municipio de Colombia. Esta metodología se resume en el análisis del Plan de Ordenamiento Territorial y estudios anteriores de movilidad y transporte, realización de estudios de tránsito (campo y oficina como rotación de demanda, ascenso y descenso de pasajeros, tiempos de recorrido y demoras, estado de carreteras y vehículos de transporte; adicionalmente se debe realizar revisión de la canasta de costos del transporte. Como soporte para las recomendaciones y decisiones se analizan indicadores de servicio, opciones de rutas y se plantean alternativas con establecimiento de tipo de vehículo, frecuencias y sistema tarifario. Algunos resultados relevantes del caso estudiado son el déficit en las frecuencias de servicio del transporte formal haciendo que los usuarios usen el informal, siendo esta demanda insatisfecha aproximadamente el 15% de la demanda total. Existe la necesidad de cambiar algunos vehículos (por capacidad utilizados para la prestación del servicio. Se presentan recomendaciones para el mejoramiento y optimización del servicio de transporte rural en el municipio objeto de estudio.

  2. Impacto ambiental de un nuevo modelo de sistema de transporte público para Caracas

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    Josefina Mundu00F3 Tejada

    2011-01-01

    Full Text Available En el ámbito urbano una de las principales fuentes contaminantes del ambiente son los vehículos automotores. Una estrategia para reducir el número de los vehículos en circulación y frenar el deterioro ambiental es el mejoramiento del sistema de transporte público y estimular su uso. Para hacer atractivo el empleo del transporte público en Caracas es indispensable hacer cambios importantes en este. Se propone la implantación de un sistema de Bus Rapid Transit (BRT que responda a los deseos de movilización de la población expresados en la Encuesta de Movilidad de 2005. En dicha propuesta, las líneas de la red de transporte masivo existente constituirían rutas troncales del sistema más importantes; el BRT contemplaría la operación de estas rutas a lo largo del eje este-oeste de la ciudad y de los principales corredores viales de los valles secundarios localizados al suroeste y sureste de Caracas; y las rutas alimentadoras operarían desde distintos sectores hacia las rutas troncales. La estimación del impacto ambiental derivado de la implantación del sistema propuesto, calculado solo con base en la sustitución de unidades minibús por autobuses en los principales corredores, señala ahorros sustanciales en consumo de espacio y de combustible; una disminución moderada del ruido; y reducciones de las emisiones de monóxido de carbono (CO, óxidos de nitrógeno (NOx e hidrocarburos (HC.

  3. ¿Para dónde va el Magdalena? : elementos sobre logística y transporte verde

    OpenAIRE

    Duque Escobar, Gonzalo

    2015-01-01

    Algunos elementos sobre logística y transporte verde, preparados a nombre de la SMP-UN, para aportar al conocimiento de las problemáticas sociales, ambientales y económicos del proyecto de navegabilidad del río Magdalena, cuya navegabilidad exige, además de considerar las limitantes ecológicas del río y su lamentable estado relacionado con la deforestación de cuencas como causa estructural y primera de la sedimentación, estructurar un sistema intermodal de transporte de carga para la Región A...

  4. Integración del uso de suelos y transporte para avanzar hacia la sostenibilidad de Guayaquil.

    OpenAIRE

    Luis Alberto Proaño Sánchez; Fernando Xavier Proaño Sánchez; Francisco José Cedeño Morán

    2016-01-01

    El objetivo de la presente propuesta de investigación es demostrar que a través de una estrategia integrada de ordenamiento del territorio y transporte, mediante la rehabilitación y redesarrollo de la Parroquias Febres Cordero y Letamendi, se puede liberar a Guayaquil de las patologías ocasionadas por el transporte y crear un hábitat más saludable y socialmente integrado, con beneficios económicos para la ciudad y los inversionistas inmobiliarios. Para demostrar la hipótesis de estudio,...

  5. Turismo y transporte urbano: Circuitos patrimoniales para vehículos motorizados en Concepción, Chile

    Directory of Open Access Journals (Sweden)

    M. Isabel López

    2013-11-01

    Full Text Available En Chile, como en muchos países del mundo, el sistema público de transporte ha sido históricamente concebido desde un punto de vista estrictamente utilitario. Es decir, en términos de su eficiencia para enlazar el hogar y el trabajo; el hogar con el lugar de estudios, etc. Estre criterio - que se explica fundamentalmente por la necesidad de optimizar los recursos públicos - deja sin embargo de lado la oportunidad de que el transporte se constituya también en un medio para fortalecer la cultura, el deporte y la salud de las personas; a través del esparcimiento y de la actividad física. Esto se lograría por ejemplo, concibiendo -o adaptando -las infraestructuras de transporte público para que enlacen lugares atractivos desde el punto de vista turístico y recreativo. Utilizando el caso de la ciudad de Concepción, el artículo analiza el potencial de esta ciudad para incorporar el paisaje a la experiencia urbana a través de un sistema de ciclo-rutas turístico/patrimoniales aptas para vehículos livianos no motorizados (tipo pedicabs.

  6. Determinación de restricciones y posibilidades ambientales para la expansion del transporte de gas natural en Colombia

    Directory of Open Access Journals (Sweden)

    Ángel Sanint Enrique

    2011-11-01

    Full Text Available En la línea de la Evaluación Ambiental Estratégica, EAE, se desarrolló un método para la determinación de restricciones y posibilidades ambientales en proyectos de transporte de gas natural por ductos, basado en el uso de herramientas de análisis territorial aplicadas sobre la plataforma SIG (Sistema de Información Geográfica, incorporando criterios ambientales que a escala 1:500.000 apoyarán la toma de decisiones en el nivel de planeación y propiciarán la elaboración del plan de expansión para el transporte de gas natural en Colombia. Para esto, se definió el concepto de ambiente a partir de un Modelo Analítico preexistente; se delimitó un área con posibilidades para la expansión de la red de transporte de gas natural incorporando nuevos trazados; se seleccionaron las variables y factores que complementaban el Modelo Analítico; se definió la estructura de preferencias a partir de una encuesta a expertos; se determinaron las restricciones nacionales y se construyeron superficies numéricas síntesis de critici dad ambiental para cada dimensión. Como resultado, se obtuvieron 5 superficies síntesis, una por cada dimensión, y una superficie final para Colombia, con restricciones y posibilidades ambientales. Además se propusieron análisis complementarios para establecer prioridades en la gestión ambiental.

  7. Un enfoque multicriterio para el diseño de una redpara el transporte de embarques internacionales

    Directory of Open Access Journals (Sweden)

    Christopher Mejía Argueta

    2014-01-01

    Full Text Available Un reto importante para los fabricantes de autopartes es coor-dinar el abastecimiento desde las diversas zonas geográficasen donde están ubicados sus proveedores. El objetivo de estainvestigación fue el diseño de una red para el servicio de trans-porte donde se consideren tanto el tiempo que los embarquesestán detenidos en aduanas y puntos de transbordo, como lasposibles demoras en la cadena de transporte debido al uso dedistintos modos de transporte. Para asegurar el mejor desempe-ño de la red se formuló un modelo de optimización que consi-dera dos criterios: costo y tiempo, cuya solución fue la estruc-tura de la cadena de transporte para una armadora ubicada enla zona industrial de Toluca que importa autopartes de EstadosUnidos de Norteamérica (E.E.U.U. para comercializarlas en-tre diversos fabricantes de automóviles que operan en México.Se aprovechó la estructura del problema de optimización paraobtener problemas separables y resolverlo usando relajaciónLagrangiana. Se identificó un conjunto de posibles solucionespara la estructura de la cadena de transporte usando los méto-dos de las ponderaciones y de la ε-restricción; las solucionesobtenidas representan el conjunto de las mejores alternativas apartir de las cuales la gerencia de logística de la empresa puedeelegir la que mejor empata con las necesidades y metas de des-empeño logístico de la empresa.

  8. Diseño del sistema scada del proceso de transporte de cemento para holcim-Ecuador

    OpenAIRE

    Coronel Perez, Ivan Ariolfo; Arreaga Medina, Miguel Angel; Manssur Hanna, Alberto

    2009-01-01

    Entre los diferentes procesos de fabricación de cemento se encuentra el de transportación del producto y es en este punto en el cual desarrollamos el siguiente proyecto, el mismo tiene por objeto diseñar un sistema automático para operar dicha línea de transporte, empezando en los silos de almacenamiento al granel hasta las máquinas envasadoras desde donde se lo despacha al mercado de consumo. La automatización permitirá a la empresa una operación más veloz y estable del transporte del ...

  9. Implementação paralela de um código de elementos finitos em 2D para as Equações de Navier-Stokes para fluidos incompressíveis com transporte de escalares.

    OpenAIRE

    Pedro Juan Torres López

    2010-01-01

    O estudo do fluxo de água e do transporte escalar em reservatórios hidrelétricos é importante para a determinação da qualidade da água durante as fases iniciais do enchimento e durante a vida útil do reservatório. Neste contexto, um código de elementos finitos paralelo 2D foi implementado para resolver as equações de Navier-Stokes para fluido incompressível acopladas a transporte escalar, utilizando o modelo de programação de troca de mensagens, a fim de realizar simulações em um ambiente de ...

  10. Deployment case study of a global applied 3D modeling process of pipe supports; Estudo de caso da aplicacao de uma ferramenta para automatizacao e controle do processo de modelagem de suportes para tubulacoes em maquetes 3D

    Energy Technology Data Exchange (ETDEWEB)

    Balbi, Diego Junca Gonzaga; Oliveira, Renato Fonseca; Pinto, Rogerio Dias [Promon Engenharia, Sao Paulo, SP (Brazil)

    2012-07-01

    An activity in engineering projects has been changed over the past two decades with regarding to working practices. Difficulties arising from the increasing complexity of projects, especially in industrial sectors, have taken this activity a constant search for new methods and tools which enable increased speed in performing tasks of daily life of the project. Currently, the development of these tools has been based on a friendlier interface to the end user, minimizing the need for extensive and repetitive training. Moreover, the industry responsible for this development of these kind of tools is still in the search for knowledge in order to explore the plain capabilities within wide projects on solutions offered. This article deals with one of these innovations on the spotlight, besides of being not a technology issue. It's based on the same basic platform available since the creation of models used together with databases. However, this new vision of work inserts one more specialty in the virtual designing of structures to support industrial pipes, as well as other design disciplines, nor taken advantage of these capabilities with regard to the generation of information, its control and management. (author)

  11. Processo de transporte de órgãos para transplante na Cidade de São Paulo

    Directory of Open Access Journals (Sweden)

    Adriana Roberta Lira

    2016-06-01

    Full Text Available O trabalho da Polícia Militar do Estado de São Paulo, em favor da sociedade completa 185 anos de existência. É um trabalho amplo e digno. Uma parcela desse trabalho apoia-se no Grupamento Aéreo da Polícia Militar do Estado de São Paulo, guarnição direcionada especificamente à atividade de transportar órgãos para transplante. Nesse sentido, o presente artigo, objetiva avaliar essa atividade, baseando-se em pesquisa realizada junto às Instituições e profissionais responsáveis pela captação e o transporte de órgãos para transplante, e sugere também ações de melhorias no planejamento dessa complexa operação.

  12. Elección del tipo de vehículo apropiado para longitudes medias de transporte

    Directory of Open Access Journals (Sweden)

    Chinchilla, M.

    1963-02-01

    Full Text Available To select the appropriate type of equipment the following will have to be taken into account. Economic, mechanical and technical factors and data which indicate the most satisfactory type of vehicle. Economic factors include purchase price, maintenance, as well as overall performance of each kind of transport. Mechanical factors are those that characterise each variety of vehicle, such as trucks, dumpers, special lorries. Choice must be directed towards the type most apt to do the required work. Attention must also be given to the mechanical qualities that will enable certain vehicles to compete successfully even in unfavourable conditions against other vehicles which have been specially designed and built to undertake the particular type of work.Para la acertada elección del tipo más apto de maquinaria para estos trabajos, habrá que tener en cuenta: Unas características económicas, mecánicas y técnicas que proporcionen la información necesaria para adoptar la solución más conveniente. Entre las características económicas hay que considerar los costes de adquisición, mantenimiento y entretenimiento, así como los rendimientos que se obtendrán con el empleo de cada tipo de vehículo. Entre las características mecánicas se consideran las que presentan cada uno de los tipos de vehículos, camiones, dumpers y camiones especiales para elegir dentro de las diversas clases y las disponibilidades existentes, aquel que por sus cualidades permita la normal realización del trabajo a efectuar, así como las condiciones mecánicas que deben satisfacer los vehículos adaptados para poder estar capacitados para competir aun en condiciones menos ventajosas con aquellos que específicamente se han construido y proyectado para trabajos de esta índole. Las características técnicas que habrá que tener en cuenta para efectuar la elección son, en realidad, derivadas de las dos anteriores y dependientes de las condiciones en que haya de

  13. Proposição de um modelo conceitual para mitigação de riscos no planejamento de transportes em cadeias de suprimentos globais

    OpenAIRE

    José Benedito Silva Santos Júnior

    2016-01-01

    Resumo: Cadeias de suprimentos globais requerem uma coordenação precisa dos fluxos de insumos, produtos acabados, informações e recursos financeiros. A natureza dinâmica das relações entre os diversos elos da cadeia de suprimentos evidencia a necessidade de uma abordagem apropriada para a gestão de riscos para todos os processos inerentes ao planejamento das operações em âmbito global, em particular, para as operações de transportes. A gestão de riscos no planejamento de sistemas de transport...

  14. Diseño de un modelo escalonado de calidad para empresas de transporte urbano de pasajeros

    Directory of Open Access Journals (Sweden)

    Carlos Torres Navarro

    2014-04-01

    Full Text Available El objetivo de este estudio fue proponer un modelo escalonado de calidad para el sector del transporte urbano de pasajeros de la provincia de Concepción, Chile, de modo de certificar las prácticas de calidad de empresas de transporte urbano de pasajeros a través del otorgamiento de un sello de calidad. La metodología utilizada consideró la revisión y análisis de modelos de gestión de calidad, modelos escalonados de calidad, normas técnicas de sistemas de gestión de calidad y sistemas de transporte disponibles en la literatura especializada. Los principales resultados fueron un modelo escalonado de calidad que consiste en cuatro niveles de calidad, organizados según un grado ascendente de exigencias reglamentarias y de calidad. El modelo ofrece una metodología de implementación organizada y coherente para indicar un camino que oriente el mejoramiento de las capacidades de gestión en empresas de transporte urbano de pasajeros, con reconocimiento público, a través del otorgamiento de un sello de calidad que reconoce el nivel de gestión alcanzado por una empresa y que pueda ser implementado por una entidad pública o privada. The aim of this study was to propose a quality stepwise model for the urban passenger transport sector for the province of Concepción, Chile, in order to certify the degree of development of quality management practices of transport companies through a seal of quality. The methodology considered the review and analysis of models of quality management, Quality stepwise models, technical standards for quality management systems and transportation systems available in the literature. The main results were a quality stepwise model consisting of four quality level organized by an ascending degree of quality requirement and of regulatory requirements. The model provides an implementation methodology organized and coherent to indicate a path to guide the improvement of business management skills in urban passenger

  15. Diseño de un modelo escalonado de calidad para empresas de transporte urbano de pasajeros

    Directory of Open Access Journals (Sweden)

    Carlos Torres Navarro

    2014-04-01

    Full Text Available El objetivo de este estudio fue proponer un modelo escalonado de calidad para el sector del transporte urbano de pasajeros de la provincia de Concepción, Chile,  de modo de certificar las prácticas de calidad de empresas de  transporte urbano de pasajeros a través del otorgamiento de  un sello de calidad. La metodología utilizada consideró la revisión y análisis de modelos de gestión de calidad, modelos escalonados de calidad, normas técnicas de sistemas de gestión de calidad y sistemas de transporte disponibles en la literatura especializada. Los principales resultados fueron un modelo escalonado de calidad que consiste en cuatro niveles de calidad,   organizados según un grado ascendente de exigencias reglamentarias y de calidad. El modelo ofrece una metodología  de implementación organizada y coherente para indicar  un camino que oriente el mejoramiento de las capacidades de gestión en empresas de transporte urbano de pasajeros, con reconocimiento público, a través del otorgamiento de un sello de calidad que reconoce el nivel de gestión alcanzado por una empresa y que pueda ser implementado por una entidad pública o privada. The aim of this study was to propose a quality stepwise model for the urban passenger transport sector for the province of Concepción, Chile, in order to certify the degree of development of quality management practices of transport companies through a seal of quality. The methodology considered the review and analysis of models of quality management, Quality stepwise models, technical standards for quality management systems and transportation systems available in the literature. The main results were a quality stepwise model consisting of four quality level   organized by an ascending degree of quality requirement and of regulatory requirements. The model provides an implementation methodology organized and coherent to indicate a path to guide the improvement of business management skills in

  16. Acceso al transporte público para personas con discapacidad en Bogotá: caso SITP

    OpenAIRE

    Carreño Ordóñez, Álvaro Fabián

    2015-01-01

    U na de la s formas de acceder a los bienes y servicios sociales en las ciudades es por medio del transporte público . Este trabajo realiza el aná lisis del Sistema Integrado de Transporte Público de Bogotá – SITP -­‐ con respecto ...

  17. Proyecto de un autobús urbano híbrido para el transporte de pasajeros

    OpenAIRE

    Sacco, Juan; Blanco, Alberto Rubén; Vucetich, Danilo A.; Pierre Castel, Andrea V.

    2011-01-01

    Se estima que en el año 2020 habrá más de 1.000 millones de vehículos en el mundo. Si todos estos vehículos fuesen equipados con motores de combustión interna convencionales, los niveles de contaminación serán inaceptables para el planeta (en las condiciones actuales). Basado en esto, han surgido en todo el mundo legislaciones que promueven, hasta exigen, el uso de “vehículos de emisión cero” (VECs) o no contaminantes. Hasta el momento, la única tecnología disponible, madura, para producir VE...

  18. The context of biofuels for road transportation in Brazil; O contexto dos biocombustiveis para o transporte rodoviario no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Berni, Mauro Donizeti [Universidade Estadual de Campinas (NIPE/UNICAMP), SP (Brazil). Nucleo Interdisciplinar de Planejamento Energetico], Email: mberni@uol.com.br; Bajay, Sergio Valdir [Universidade Estadual de Campinas (DE/FEM/UNICAMP), SP (Brazil). Fac. de Engenharia Mecanica. Dept. de Energia], Email: bajay@fem.unicamp.br

    2006-07-01

    Brazil is one of the countries with greatest potential for fuels production from biomass and has already given a good example to the world as how to implement a program and use of biofuel based on renewable energy source. The Brazilian ethanol program has already 30 years of experience and has produced a mature industry. Biogas and biodiesel, in turn, is just in the initial phase, with a supply chain being structured and looking for the best solutions from the economic, social and environment standpoint. In this context, this work analyzed the potential, implications and experiences for biofuels with ethanol, mainly biogas and biodiesel for road transport in Brazil. (author)

  19. Statistical model for suspension transport in porous media; Modelo estatistico para o transporte de suspensoes em meios porosos

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Adriano dos; Barros, Paulo [Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN (Brazil)

    2008-07-01

    An analytical model for transport of particulate suspensions in porous medium is discussed. The model takes microscopic rock characteristics into account and considers that size exclusion is the dominant particle retention mechanism. Analytical solutions for suspended and retained particle concentrations are obtained and the inverse problem is solved, allowing the filtration coefficients determination from experiments. The filtration coefficients for the proposed and the classical deep bed filtration models are calculated from experimental data available in the literature and the results are compared. Finally, it is shown that the proposed model tends to the classical deep bed filtration model when the particle retention probability tends to zero. (author)

  20. FONTES E TRANSPORTE DE METAIS PESADOS PARA ENSEADA DE JURUJUBA (BAIA DE GUANABARA RJ - BRASIL

    Directory of Open Access Journals (Sweden)

    José Antônio Baptista Neto

    2005-12-01

    Full Text Available As fontes de sedimentos e metais pesados para um estuário urbanizado são complexas e difusas. Esta pesquisa tem como objetivo acessar as principais fontes de metais pesados para a enseada de Jurujuba (RJ. Analisaram- se as concentrações dos elementos Cr, Cu, Ni, Pb, Zn e Fe, em amostras de solo, rios e escoamento superficial urbano, bem como sedimentos de marinas. Apesar de se poderem distinguir as fontes naturais das antrópicas de metais pesados para a Enseada de Jurujuba, é evidente que os processos de urbanização são os principais responsáveis pelas maiores concentrações de metais pesados para a enseada, através de rios e escoamento superficial urbano. No entanto, não se podem desprezar a deposição atmosférica e as atividades náuticas como importantes fontes de poluição.Palavras-chave: fontes de sedimentos, poluição de metais pesados, Enseada de Jurujuba, processo de urbanização.

  1. Influência do tempo de transporte para juvenis de pacamã (Lophiosilurus alexandri

    Directory of Open Access Journals (Sweden)

    R.K. Luz

    2013-12-01

    Full Text Available The aim of this work was to evaluate different transport times for pacama juvenile (Lophiosilurus alexandri previously trained to feed formulated diets. Four hundred and eighty-six pacama juveniles (2.52±0.71g were submitted to 24 hours of fasting before transport. The animals were divided into nine plastic bags, with density of 54 juveniles in 5L of clean water for each bag after that inflated with pure oxygen and then sealed. Fish were transported for three hours and bags were open at 5, 6 and 7.5 hours after closing. For each time three replications were used. Survival was monitored for 96 hours post-transport. The longest time tested showed the lowest values of dissolved oxygen and pH, while the total ammonia was similar in the different treatments. Survival was 100% for different transport times after 96 hours. Some juveniles returned to feed 48 hours and the majority 72 hours after opening the bags, suggesting the efficiency of transport made at different times.

  2. Análisis comparativo de dos técnicas para el transporte vertical de la luz natural

    Directory of Open Access Journals (Sweden)

    Gerardo Ramírez González

    2018-01-01

    Full Text Available Este trabajo tiene como objetivo primordial comparar y establecer las relaciones de efectividad entre dos técnicas de diseño para el transporte vertical de la luz natural en el interior de las edificaciones. En primer lugar, se diseñó, construyó y utilizó un equipo experimental tipo concentrador domótico, con distribución a través de fibra óptica hacia un espacio interior sin ninguna iluminación natural tradicional, para monitorizar su efectividad por medio de un luxómetro digital y un recopilador de datos (Datalogger de entrada múltiple. En segundo lugar, se monitorizó el rendimiento lumínico de un lucernario tradicional durante un periodo de seis meses. Finalmente, se realizó un estudio por medio de la Simulación Generada por Computadora (SGC, para establecer la relación entre las proporciones tridimensionales de los ductos de luz y la tasa de degradación de la iluminancia obtenida en el interior del espacio arquitectónico. En términos de resultados, el sistema de iluminación natural por fibra óptica (SINFO no alcanza la efectividad lumínica del lucernario, sin embargo, presenta un rendimiento más uniforme y constante. La idea central es utilizar un criterio de comparación validado, tal como el factor de aprovechamiento de luz diurna (Daylight Factor y otras métricas complementarias, para establecer una relación básica de efectividad entre ambas técnicas. Por último, se establecen recomendaciones de diseño con relación a la utilización de cada una de las técnicas.

  3. Proyecto de un autobús urbano eléctrico para el transporte de pasajeros

    OpenAIRE

    Sacco, Juan; Blanco, Alberto Rubén; Vucetich, Danilo A.; Pierre Castel, Andrea V.; Matera, Román; Bellomo, Daniel

    2013-01-01

    Se estimó que en los próximos años habrá más de 1.000 millones de vehículos en el mundo. Si todos estos vehículos fuesen equipados con motores de combustión interna convencionales, los niveles de contaminación, en las condiciones actuales, serán inaceptables para el planeta. Basado en esto, han surgido en todo el mundo legislaciones que promueven, hasta exigen, el uso de “vehículos de emisión cero” (VECs) o no contaminantes. La única tecnología disponible, probada, para producir VECs es la...

  4. Fluxo do transporte de suínos para abate no Estado de Mato Grosso

    OpenAIRE

    Pereira,Thuanny Lúcia; Corassa,Anderson

    2014-01-01

    Objetivou-se descrever o fluxo de suínos para abate produzidos no Estado de Mato Grosso entre os anos de 2008 e 2012. Foram utilizados dados de 9.426.729 suínos produzidos no Estado de Mato Grosso e transportados para abate de janeiro de 2008 a dezembro de 2012, no qual realizou-se análise descritiva das informações, com frequências de origem e destino; machos e fêmeas em função dos meses e anos e as distâncias percorridas. Observou-se crescimento no número de viagens e de suínos transportado...

  5. Expert System for natural gas transportation network management; Sistema especialista para gerenciamento de redes de transporte de gas natural

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Jonny Carlos da; Porciuncula, Gilson Simoes [Santa Catarina Univ., Florianopolis, SC (Brazil). Dept. de Engenharia Mecanica Lab. de Sistemas Hidraulicos e Pneumaticos

    2003-07-01

    This paper presents a project to integrate expert system and dynamic simulation of natural gas transportation network applying the concept of agents. Natural gas pipeline operation requires the intermittent analysis of hundreds interrelated operational parameters, which represent the network state. The combination of expert system and dynamic simulation is a synergic solution for this kind of problem. With expert system techniques, it is possible to implement rules that describe the relationship between current operational parameters and the network normal operational conditions based on heuristic knowledge. By applying such rules, the system aims to evaluate the real network state and to predict abnormal conditions via dynamic simulation, allowing time analysis of operational situation in advance. At the current stage, the project presents a well defined model. The process of knowledge acquisition and representation has taken place following an incremental approach, considered as development paradigm. The project objectives are to reduce costs, increase the reliability and organize pipeline operation and maintenance information. This work is part of SEGRED project established as partnership among LASHIP/UFSC, SCGAS, TBG and PETROBRAS. The project also received support from FINEP. (author)

  6. PROPUESTA DE UN MODELO DE CALIDAD DE SERVICIO PARA EL TRANSPORTE PUBLICO METROBUS

    OpenAIRE

    FLORES RAMIREZ, MARIA LUISA

    2013-01-01

    Los países en el mundo enfrentan la problemática de mejorar la movilidad urbana y bajar las emisiones de CO2 a la atmósfera. Los Sistemas de Transporte Rápido (BRT) a nivel global, son parte de una estrategia integral que ha incurrido en gran medida a solventar este problema. En esta investigación se describen los Sistemas de Transporte BRT, como experiencias internacionales; en el caso particular de la línea 1 del Metrobús de la Ciudad de México, sus antecedentes, beneficios, organización...

  7. Heavy oil, water and air three-phase flow patterns in horizontal pipes; Padroes de escoamento trifasico de oleo pesado, agua e ar em tubulacoes horizontais

    Energy Technology Data Exchange (ETDEWEB)

    Trevisan, Francisco Exaltacao; Bannwart, Antonio Carlos [Universidade Estadual de Campinas (UNICAMP), Campinas, SP (Brazil)

    2004-07-01

    A significant extent of the Brazilian oil reserves consists of heavy oil, and its importance and economic value have been increasing in the last years. However, these oils, besides their elevated densities (API degree lower than 20), have viscosities higher than 100 mPa.s, which make it more difficult their transportation in pipelines. A solution for this problem is the injection of water in the pipe, which causes a reduction of the friction factor and, consequently, of the energy expend for a given oil flow rate. The two-phase flow of heavy oil and water has been the object of a number of recent studies, and concepts such as the core-flow technology can be useful for heavy oil transportation. But in production operations, gas is also present, initially dissolved in the oil phase then leaving the solution to form a free gas phase if the pressure drops below the bubble point pressure, the study of three-phase flow of heavy oil, water and gas is in order. The present paper presents the experimental work developed to evaluate the effect that this third phase causes on the heavy oil-water two-phase flow pattern. Initially two-phase flow of heavy and gas-water was studied to establish the flow rate ranges that cover the main patterns already known. The superficial velocities used varied from 0,04 to 0,5 m/s for water, 0,01 to 22 m/s for gas and 0,02 to 1,2 m/s for oil. After that, three-phase flow patterns were visually determined through a 2,84 cm i.d. plexiglas tube using a high-speed camera. Nine three-phase flow patterns were identified which are presented visually and described. These flow-patterns are also presented in flow maps where the effect of the gas phase can be observed. Water was the continuous phase for all flow patterns observed, ensuring a low pressure drop along the pipe. (author)

  8. Selección de cadenas para equipos de transporte continuo. // Chain selection software for continuous conveyors.

    Directory of Open Access Journals (Sweden)

    F. Aguilar Parés

    2003-01-01

    Full Text Available El diseño de transportadores y elevadores, que usan cadenas como órgano motor, es algo común en la industria. Unelemento esencial para el buen funcionamiento del equipo es seleccionar correctamente la cadena. Los fabricantes decadenas disponen de una amplia gama de cadenas y aditamentos para satisfacer cualquier requerimiento del equipodiseñado, pero precisamente ante tal universo de cadenas es que surge la necesidad de establecer un procedimiento quecontemple:· Tipo de equipo diseñado (transportador de tablillas o de rastrillos o elevador de cangilones.· Requerimientos de transportación (capacidad, velocidad de transportación, características del material, etc..· Condiciones de transportación (sobrecarga, condiciones de operación, horas de trabajo, etc..El procedimiento antes descrito resulta ser engorroso porque hay etapas en que una decisión implica ajustes a cálculosanteriores y porque como en cualquier proceso de diseño se puede obtener mas de una solución. Por tal motivo se acometióla realización del programa de computación SELCAD. El programa está concebido para que se obtengan resultados porpersonas que no son expertas en el diseño y selección de equipos de transporte continuo, pudiéndose usar también paravalorar si una cadena dada está bien empleada. La base de datos fue obtenida de un catálogo de la Link Belt IndustrialChain Division en que se valoran el uso de 14 tipos de cadenas, con un promedio de 15 modelos por tipo de cadena, lascuales disponen de 40 tipos de aditamentos diferentes. Algunas características del programa son:· Ambiente fácil para el usuario (programado en Visual Basic versión 5.· Sistema de ayudas a lo largo del programa.· Brinda las características del órgano portador y de la rueda motriz.· Permite visualizar, mediante fotos, la forma real de la cadena y del aditamento seleccionado.· Análisis rápido de variantes diferentesPalabras claves Cadenas de transportaci

  9. Planificación estratégica para la compañia de Transportes Conocoto Azblan S.A

    OpenAIRE

    Velasquez Espín, Andrea

    2011-01-01

    La presente tesis, desarrollada para la carrera de Ingeniería en Administración de empresas, tiene como tema principal realizar la formulación de una Planificación Estratégica para la compañía de Transportes Conocoto Azblán S.A. La propuesta nace de la necesidad de mejorar el nivel de competitividad de la Compañía de Transportes Conocoto Azblán, logrando un aporte positivo mediante la aplicación de los conocimientos adquiridos durante la carrera. Se establece desarrollar el proyec...

  10. Estrategias para fomentar políticas y practicas sustentables en el transporte metropolitano de distribución de mercancías.

    OpenAIRE

    Antún, Juan Pablo; Hernández Casanova, Rodolfo

    2010-01-01

    Se presentan lineamientos en cinco áreas de intervención para el fomento de políticas públicas en planificación de transporte urbano de carga y de prácticas logísticas empresariales que conduzcan a procesos sustentables en la distribución urbana de mercancías. Para tal fin se discute sobre la problemática del sector y las características actuales de la intervención publica en la zona metropolitana de la ciudad de México (ZMCM); asimismo se analizan las tendencias en transporte urbano de carga...

  11. Modelagem para localização de hubs no transporte de encomendas expressas Modelling for location hubs in the express cargo transport

    Directory of Open Access Journals (Sweden)

    Javier Antonio Timaná Alamo

    2006-12-01

    Full Text Available Na presente pesquisa se propõe um modelo matemático de programação linear com variáveis binárias 0/1, para projetar a configuração de uma rede de distribuição de encomendas expressas, visando minimizar os custos e garantindo um bom nível de serviço. O modelo, que é uma modificação da formulação proposta por O’Kelly, define as posições dos hubs, a alocação deles às demais instalações físicas e a construção de roteiros com apenas uma parada intermediária, o que confere mais agilidade ao atendimento da demanda de transporte de carga. Considera-se a instalação de um único hub maior (Hub Principal, que serve como ponto de transbordo para os fluxos de carga entre as distintas regiões de um território, e um conjunto de terminais regionais (mini-hubs, servindo como ponto de conexão, unicamente, para os fluxos de carga existentes em um determinado raio de cobertura. Foram propostas extensões que incluem uma restrição da capacidade operacional do Hub Principal, para evitar seu congestionamento, e duas diferentes estratégias de induzir o aumento de fluxo de carga manipulado pelos mini-hubs. O modelo proposto e suas extensões foram aplicados ao estudo de um caso real, obtendo-se resultados consistentes e uma redução significativa no custo total da rede de distribuição da empresa analisada.This study proposes a mathematical model of linear programming with binary variables 0/1 to project the configuration of a distribution network for express cargo which aims to minimize costs and guarantee a high level of service. The model, which is a modification of the formulation proposed by O’Kelly, defines the position of the hubs, their allocation regarding the other physical installations, and the building of itineraries with only one intermediate stop, which increases agility in meeting the demand of cargo transport. It assumes the installation of a single, major hub (Main Hub, which serves as the transfer point for

  12. MODELOS DE REGRESIÓN LINEAL PARA ESTIMACIÓN DE TIEMPOS DE VIAJE EN SISTEMAS DE TRANSPORTE MASIVO

    Directory of Open Access Journals (Sweden)

    Orlando Antonio Sabogal Cardona

    2015-01-01

    Full Text Available Uno de los aspectos más importantes en una implementación de Sistemas de Prioridad (TSPpara el transporte masivo es conocer el tiempo de llegada y de viaje de los buses solicitandoprioridad. El presente artículo estima los tiempos de llegada de los buses usando técnicas deregresión lineal para un modelo de simulación del sistema de transporte masivo de la ciudadde Pereira, Colombia. Se presta especial atención a la validez de los supuestos de los modeloslineales en diferentes corredores bajo distintas condiciones. Las simulaciones se han realizadoen el software Transmodeler® y los análisis de los modelos usando el lenguaje de programaciónR. Los resultados muestran que es difícil construir un modelo de regresión lineal válido yque las violaciones a los supuestos de normalidad, independencia y homocedasticidad sonfrecuentes. La única situación en la que fue posible construir modelos válidos fue en una zonasin intersecciones señalizadas ni estaciones de parada. Sin embargo, evaluaciones a las variables de respuesta de tiempos de viajes y análisis de residuales indican que se deben usar modeloslineales generalizados.

  13. Redefinição automática da rede de transporte coletivo para alocação de fluxo de equilíbrio

    Directory of Open Access Journals (Sweden)

    Fernando Ramiro Castro Aragón

    2010-04-01

    Full Text Available

    Muitas formulações para resolver problemas de alocação de fluxos para o transporte coletivo utilizam redes lógicas redefinidas a partir de uma rede inicial para este modo de transporte. A rede de transporte coletivo é redefinida criando-se nós e arcos adicionais a representação da rede viária, para permitir a aplicação de algoritmos que modelam o comportamento dos passageiros na hora da escolha da rota e para poder representar os diferentes componentes do tempo total de viagem como os tempos de caminhada, tempos de espera, tempos de transbordo e tempos de descida nos pontos de parada. Este trabalho visa demonstrar que este processo de redefinição da rede pode ser executado de uma forma automática a partir de certas informações do modelo de rede original e dos itinerários das linhas de ônibus.

    ABSTRACT

    Most approaches of transit network problems use a redefined network that consider behavioral assumptions and different components of total travel time. The purpose of this article is to demonstrate that it is possible to automate the representation of a logic transit network, including walking arcs, waiting arcs, transfer arcs and aligthing arcs, starting from some representation of the street network and from transit lines information as itineraries, frequency and speed.

  14. Análise do custo e do raio econômico de transporte de madeira de reflorestamentos para diferentes tipos de veículos Cost and distance of reforestation wood transport for different types of trucks

    Directory of Open Access Journals (Sweden)

    Márcio Lopes da Silva

    2007-12-01

    Full Text Available Este estudo foi realizado com o objetivo de estabelecer a distância máxima de transporte viável para cada tipo de veículo utilizado para transportar a madeira das áreas de colheita até centros de consumo. Para tanto, utilizaram-se dados de custos e receitas de um reflorestamento, bem como a capacidade de carga de diferentes composições veiculares empregadas no transporte. Aplicando-se os critérios econômicos (VPL, TIR, CMP e BCPE, as distâncias variaram entre 155 e 226 km, para o caminhão-truck e o rodotrem, respectivamente. Concluiu-se que o rodotrem pode alcançar distância maior de transporte, sendo o preço da madeira a variável que mais influenciou a distância máxima de transporte.The objective of this study was to establish the viable transport maximum distance for each type of wood transportation vehicle from the harvest areas to the consumption centers. Thus, reforestation cost and revenue data were used, as well as the load capacity of different types of vehicles used for wood transport. The application of economic criteria (VPL, TIR, CMP and BCPE showed that the distances varied between 155 and 226 km, for the small truck and rodotrem (truck with two large trailers, respectively. It was concluded that rodotrem could reach a greater distance, with wood price being the factor most influencing maximum transport distance.

  15. Procedure for determination of the decontamination of piping in the production of iodine-125 seeds; Procedimento para determinacao da descontaminacao de tubulacoes, na producao de sementes de iodo-125

    Energy Technology Data Exchange (ETDEWEB)

    Moura, J.A.; Moura, E.S.; Sprenger, F.E.; Nagatomi, H.R.; Zeituni, C.A.; Feher, A.; Manzoli, J.E.; Souza, C.D.; Rostelato, M.E.C.M., E-mail: elisaros@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2009-07-01

    Iodine-125 seeds are radioactive sources used in the prostate cancer treatment. This work objective was to determine the necessary conditions and procedures for decontamination of liquid transfer tubes when a radioactive material leakage occurs during the process of seed quality control

  16. Development and qualification of polymeric matrix laminated composites for repair for piping and pipelines; Desenvolvimento e qualificacao de compositos laminados de matriz polimerica para o reparo de dutos e tubulacoes industriais

    Energy Technology Data Exchange (ETDEWEB)

    Rohem, N.R.F.; Sampaio, E.M.; Queiroz, R.A.; Cortines, V.J. [Universidade do Estado do Rio de Janeiro (LAA/UERJ), Campus Regional - Instituto Politecnico (IPRJ) - Laboratorio de Adesao e Aderencia, Nova Friburgo, RJ (Brazil)], e-mail: nrohem@iprj.uerj.br

    2010-07-01

    The use of polymeric matrix composites to repair and strengthen structures in the oil industry has become a common industry practice. In the year of 2006 the ISO/PDTS 24817 'Petroleum, petrochemical and natural gas industries - Qualification, design, installation, testing and inspection' was presented. This study presents the development of a new laminate, manual lamination process, and some of the certifying tests in accordance with ISO, for through-wall damage repairs. The test consists of applying the composite laminate repair in 9 carbon steel tubes, NPS6, with 600mm of length, with drilled holes of 10, 15, and 25mm. After the curing time a hydrostatic test is performed. The laminate must fail by delamination at the substrate/composite interface. With this test we obtain the {lambda}LCL (energy release rate), used to determine the thickness of the repair applied in tubes with through-wall damage. (author)

  17. An integrated management tool for rockfall evaluation along transportation corridors: the ParaChute research project

    Science.gov (United States)

    Cloutier, Catherine; Locat, Jacques; Mayers, Mélanie; Noël, François; Turmel, Dominique; Jacob, Chantal; Dorval, Pierre; Bossé, François; Gionet, Pierre; Jaboyedoff, Michel

    2016-04-01

    Rockfall is a significant hazard along linear infrastructures due to the presence of natural and man-made rock slopes. Knowing where the problematic rockfalls source areas are is of primary importance to properly manage and mitigate the risk associated to rockfall along linear infrastructures. The aim of the ParaChute research project is to integrate various technologies into a workflow for rockfall characterization for such infrastructures, using a 220 km-long railroad as the study site which is located on Québec's North Shore, Canada. The objectives of this 3-year project which started in 2014 are: (1) to optimize the use of terrestrial, mobile and airborne laser scanners data into terrain analysis, structural geology analysis and rockfall susceptibility rating, (2) to further develop the use of unmanned aerial vehicles (UAV) for photogrammetry applied to rock cliff characterization, and (3) to integrate rockfall simulation studies into a rock slope classification system similar to the Rockfall Hazard Rating System. Firstly, based on laser scanner data and aerial photographs, the morpho-structural features of the terrain (genetic material, landform, drainage, etc.) are mapped. The result can be used to assess all types of mass movements. Secondly, to guide field work and decrease uncertainty of various parameters, systematic rockfall simulations and a first structural analysis are made from point clouds acquired by mobile and airborne laser scanner. The simulation results are used to recognize the rock slopes that have potentially problematic rockfall paths, meaning they could reach the linear infrastructure. Other rock slopes are not included in the inventory. Field work is carried out to validate and complete the rock slopes characterization previously made from remote sensing technique. Because some or parts of cliffs are not visible or accessible from the railroad, we are currently developing the use of photogrammetry by UAV in order to complete the

  18. Integración del uso de suelos y transporte para avanzar hacia la sostenibilidad de Guayaquil.

    Directory of Open Access Journals (Sweden)

    Luis Alberto Proaño Sánchez

    2016-09-01

    Para demostrar la hipótesis de estudio, se bosquejó un sistema de espacios libres en la ciudad, además de nuevas líneas de transporte y morfologías como estrategia de renovación en las parroquias Febres Cordero y Letamendi, aplicando criterios de urbanismo sostenible desde una perspectiva local. Producto de esta propuesta integrada, la ciudad contaría con un ambiente libre de contaminación vehicular en las parroquias intervenidas, aproximadamente 1.500 hectáreas adicionales de áreas verdes, 76.000 viviendas, 90.000 locales comerciales, 115.000 oficinas, 255 hectáreas de equipamientos públicos, y beneficio privado que bordearía los US$2.000 millones de dólares en términos de Valor Presente Neto.

  19. Administración de recursos de distribución: indicadores para la priorización en transporte

    Directory of Open Access Journals (Sweden)

    Juan José Bravo

    2007-01-01

    Full Text Available Dadas las exigencias de los nuevos tratados comerciales, las empresas se han visto forzadas a aumentar sus niveles de competitividad y volver más eficiente el manejo de sus limitados recursos. En este marco, es natural que la gerencia de las empresas considere al transporte en general y a la distribución física de productos en particular como un campo que se debe estudiar y mejorar con miras a lograr una logística comercial que redunde en disminuciones significativas de costos. En este artículo se presenta el estudio de la administración de los recursos de distribución, enfocado en la gestión adecuada del despacho de mercancías, asumiendo recursos limitados. Se proponen algunas métricas que se constituyen, cuando se usan de manera combinada, como un apoyo valioso para los procesos de planificación de despachos considerando el caso típico de envíos desde un centro de distribución hacia “n” bodegas, las cuales podrían considerarse como clientes internos o externos.

  20. Diseño y construcción de un registrador de pasajeros para vehículos de transporte público

    OpenAIRE

    Bravo Abarca, Ana Rosario; Ledesma Galindo, Bolívar

    2005-01-01

    El sistema propuesto utiliza un torno para el ingreso y salida de pasajeros. Este dispone de dos sensores ubicados estratégicamente para saber si una persona entra o sale de la unidad de transporte. La información, almacenada en el circuito de control, puede ser accedida únicamente con la ayuda de un computador y con una clave de acceso. Se ha presentado el diseño del hardware de la forma más clara y concisa posible, lo que a su vez permitirá mejoras posteriores. Todos los elementos utlizados...

  1. EL HÁNDICAP DEL TRANSPORTE AÉREO PARA EL DESARROLLO INICIAL DEL TURISMO DE MASAS EN LAS ISLAS CANARIAS

    Directory of Open Access Journals (Sweden)

    José Ángel Hernández Luis

    2011-01-01

    Full Text Available El transporte aéreo, más aún en un territorio fragmentado y alejado como es el caso del Archipiélago canario, ha jugado un papel trascendental para el desarrollo del turismo de masas en los años sesenta y setenta. En efecto, sin la llegada del motor a reacción a Canarias, no se podría comprender el espectacular desarrollo turístico que las Islas experimentaron en este periodo, siendo el principal objetivo de este trabajo, abordar -aunque de forma sucinta-, este proceso absolutamente decisivo para las Islas.

  2. Modelos para analizar el desarrollo del transporte urbano del Valle de Aburrá con consideraciones económicas, energéticas y ambientales

    Directory of Open Access Journals (Sweden)

    Juan M. Alzate

    2007-05-01

    Full Text Available Mediante una metodología basada en un modelo de optimización multiperiodo de mínimo costo y un modelo para la estimación de demandas de movilidad, se evalúan diferentes escenarios de movilidad y políticas regulatorias de carácter energético y ambiental para el transporte urbano del Área Metropolitana del Valle de Aburrá. Se espera que la metodología y herramientas desarrolladas apoyen y orienten el proceso de toma de decisiones sobre el transporte urbano local hacia la disminución de la emisión de contaminantes a la atmósfera. La metodología considera alta desagregación geográfica de la información para apoyar el proceso de planificación del territorio./ Through a methodology based on a minimum cost multi-period optimization model and a previous model for mobility demand estimation, there are assessed different mobility demand scenarios next to energy and environmental regulatory policies for the urban transportation of the Aburrá Valley. It is expected the developed methodology and tools to support and guide decision processes over urban transportation sector at a local scale pointing to diminish pollutant emissions to atmosphere. This methodology considers high geographic dissagregation level of the information to support territorial urban planning.

  3. Design and tests of a package for the transport of radioactive sources; Projeto e testes de uma embalagem para o transporte de fontes radioativas

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Paulo de Oliveira, E-mail: pos@cdtn.b [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)

    2011-10-26

    The Type A package was designed for transportation of seven cobalt-60 sources with total activity of 1 GBq. The shield thickness to accomplish the dose rate and the transport index established by the radioactive transport regulation was calculated by the code MCNP (Monte Carlo N-Particle Transport Code Version 5). The sealed cobalt-60 sources were tested for leakages. according to the regulation ISO 9978:1992 (E). The package was tested according to regulation Radioactive Material Transport CNEN. The leakage tests results pf the sources, and the package tests demonstrate that the transport can be safe performed from the CDTN to the steelmaking industries

  4. Elementos sobre el diseño de conductos para transporte de sólidos en suspensión.

    OpenAIRE

    Castro Osorio, Sandra; Toro Escobar, Carlos Mario; Vélez Upegui, Jaime Ignacio

    1993-01-01

    Se propone una metodología de trabajo para el diseño de conductos empleados en el transporte de sólidos en suspensión y se aplica al caso de suspensiones de caolín. Se examinan los parámetros reológicos de fluidos newtonianos y no newtonianos y las características de la sedimentación de tales fluidos, así como los aspectos técnicos del transporte de sólidos por tubería.

  5. SIMASS - MODELO PARA SIMULAR O TRANSPORTE DE ÁGUA E SOLUTOS NO SOLO I: DESENVOLVIMENTO E TESTE DE SENSIBILIDADE

    Directory of Open Access Journals (Sweden)

    Silvana Nunes da Costa

    1999-08-01

    Full Text Available RESUMO Desenvolveu-se um modelo matemático, denominado SIMASS, para simular o transporte unidimensional de água e soluto no solo, sob condições de escoamento não-permanente. As equações de transporte de água e de solutos, são resolvidas numericamente pelo método de diferenças finitas. O modelo permite, entre outras características, obter-se a distribuição de umidade e de solutos no solo, a utilização de condições de contorno do tipo potencial constante e do tipo fluxo constante, e o uso de duas funções, através das quais se estima a condutividade hidráulica do solo não-saturado. A avaliação do desempenho do SIMASS em simular, sob condições de solo saturado, as curvas de efluentes e os perfis de distribuição de nitrato em colunas de solo, foi realizada comparando-se as simulações realizadas por este com aquelas simuladas, usando-se o modelo CXTFIT, versão 1.0. A sensibilidade do modelo aos valores de Δz (distância entre os pontos simulados e Δt (intervalo de tempo entre duas simulações foi analisada e os resultados mostraram desempenho adequado do SIMASS na simulação de curvas de efluente e perfis de distribuição de concentração de nitrato, quando comparado ao CXTFIT. O SIMASS apresenta maior sensibilidade ao valor de Δz na simulação de curvas de efluente e ao valor de Δt na simulação de perfis de distribuição de concentração.

  6. Program of actions for energy conservation in the equipment for the urban public transportation; Programa de acciones para el ahorro de la energia en los equipos de transporte publico urbanos

    Energy Technology Data Exchange (ETDEWEB)

    Sanhez Arellano, L.I. [Facultad de Ingenieria, Universidad Autonoma del Estado de Mexico, Toluca (Mexico)

    1995-12-31

    las redes de transporte y su explotacion, asi como la del ahorro y uso eficiente de la energia utilizada para su funcionamiento. El trabajo aqui presentado se inscribe dentro de las lineas de interes de este programa. Las caracteristicas propias de operacion y de consumo de energia de los diferentes tipos de vehiculos utilizados en el servicio de transporte publico urbano, dependen principalmente de las aplicaciones para las que se hayan previsto. Sin embargo un punto importante es el conocer de manera mas concreta y especifica la naturaleza y otras opciones de utilizacion posibles de los diversos sistemas de transporte urbano, asi como su impacto energetico y la posibilidad de ahorros bien canalizados. El objetivo de este trabajo es la de presentar de manera concreta los diferentes equipos utilizados en el transporte publico urbano, haciendo una comparacion energetica, ademas de plantear un programa de acciones tendientes al ahorro de energia para los vehiculos que operan actualmente en las principales ciudades del pais. Se indican las principales acciones y sus caracteristicas basicas para su puesta en marcha, las cuales se pueden resumir en tres grandes rubros: -acciones dentro de las mismas empresas y sobre el parque vehicular existente. -acciones sobre la administracion y explotacion de los sistemas de transporte. -acciones para la utilizacion de nuevos equipos y vehiculos mas eficientes. Una explicacion detallada de cada una de estas acciones y su impacto en el consumo de energeticos son el proposito final de este estudio.

  7. Program of actions for energy conservation in the equipment for the urban public transportation; Programa de acciones para el ahorro de la energia en los equipos de transporte publico urbanos

    Energy Technology Data Exchange (ETDEWEB)

    Sanhez Arellano, L I [Facultad de Ingenieria, Universidad Autonoma del Estado de Mexico, Toluca (Mexico)

    1996-12-31

    las redes de transporte y su explotacion, asi como la del ahorro y uso eficiente de la energia utilizada para su funcionamiento. El trabajo aqui presentado se inscribe dentro de las lineas de interes de este programa. Las caracteristicas propias de operacion y de consumo de energia de los diferentes tipos de vehiculos utilizados en el servicio de transporte publico urbano, dependen principalmente de las aplicaciones para las que se hayan previsto. Sin embargo un punto importante es el conocer de manera mas concreta y especifica la naturaleza y otras opciones de utilizacion posibles de los diversos sistemas de transporte urbano, asi como su impacto energetico y la posibilidad de ahorros bien canalizados. El objetivo de este trabajo es la de presentar de manera concreta los diferentes equipos utilizados en el transporte publico urbano, haciendo una comparacion energetica, ademas de plantear un programa de acciones tendientes al ahorro de energia para los vehiculos que operan actualmente en las principales ciudades del pais. Se indican las principales acciones y sus caracteristicas basicas para su puesta en marcha, las cuales se pueden resumir en tres grandes rubros: -acciones dentro de las mismas empresas y sobre el parque vehicular existente. -acciones sobre la administracion y explotacion de los sistemas de transporte. -acciones para la utilizacion de nuevos equipos y vehiculos mas eficientes. Una explicacion detallada de cada una de estas acciones y su impacto en el consumo de energeticos son el proposito final de este estudio.

  8. Transportation

    National Research Council Canada - National Science Library

    Adams, James; Carr, Ron; Chebl, Maroun; Coleman, Robert; Costantini, William; Cox, Robert; Dial, William; Jenkins, Robert; McGovern, James; Mueller, Peter

    2006-01-01

    ...., trains, ships, etc.) and maximizing intermodal efficiency. A healthy balance must be achieved between the flow of international commerce and security requirements regardless of transportation mode...

  9. Rotina computacional e equação simplificada para modelar o transporte de sedimentos num Latossolo Vermelho Distrófico Computational routine and simplified equation for modeling sediment transport capacity in a Dystrophic Hapludox

    Directory of Open Access Journals (Sweden)

    Gilmar E. Cerquetani

    2006-08-01

    Full Text Available Os objetivos do presente trabalho foram desenvolver rotina computacional para a solução da equação de Yalin e do diagrama de Shields e avaliar uma equação simplificada para modelar a capacidade de transporte de sedimento num Latossolo Vermelho Distrófico que possa ser utilizada no Water Erosion Prediction Project - WEPP, assim como em outros modelos de predição da erosão do solo. A capacidade de transporte de sedimento para o fluxo superficial foi representada como função-potência da tensão cisalhante, a qual revelou ser aproximação da equação de Yalin. Essa equação simplificada pôde ser aplicada em resultados experimentais oriundos de topografia complexa. A equação simplificada demonstrou acuracidade em relação à equação de Yalin, quando calibrada utilizando-se da tensão média cisalhante. Testes de validação com dados independentes demonstraram que a equação simplificada foi eficiente para estimar a capacidade de transporte de sedimento.The objectives of the present work were to develop a computational routine to solve Yalin equation and Shield diagram and to evaluate a simplified equation for modeling sediment transport capacity in a Dystrophic Hapludox that could be used in the Water Erosion Prediction Project - WEPP, as well as other soil erosion models. Sediment transport capacity for shallow overland flow was represented as a power function of the hydraulic shear stress and which showed to be an approximation to the Yalin equation for sediment transport capacity. The simplified equation for sediment transport could be applied to experimental data from a complex topography. The simplified equation accurately approximated the Yalin equation when calibrated using the mean hydraulic shear stress. Validation tests using independent data showed that the simplified equation had a good performance in predicting sediment transport capacity.

  10. Nota sobre o transporte de krill (euphausia superba Dana vivo da antártica para o Brasil Note on the transportation of a live krill (Euphausia superba Dana from Antartic to Brazil

    Directory of Open Access Journals (Sweden)

    Van Ngan Phan

    1987-01-01

    Full Text Available É apresentado nesta nota experimento sobre o transporte do krill vivo da Antartica para o Brasil, realizado durante a V Expedição Brasileira à Antártica, verão 1986-1987. O sistema de aquário utilizado e a mortalidade do krill em função do tempo e de outros eventos durante o experimento são descritos. A importância deste experimento para o desenvolvimento do estudo experimental do krill é discutida.In this note an experiment on transportation of alive krill from the Antarctica to Brazil during the V Brazilian Expedition to the Antarcticas austral summer 1986-198?3 was reported. The aquarium system and the krill mortality in function of time and other events dur-lng the experiment were described. The importance of this experiment for the development of experimental studies of krill was discussed.

  11. Modelo matemático para otimização da capacidade volumétrica de caminhões para transporte de produtos alimentícios

    Directory of Open Access Journals (Sweden)

    Suzane Pedruzzi

    Full Text Available Resumo Estudos que visem otimizar a utilização da capacidade dos caminhões são importantes no Brasil, país em que o transporte rodoviário representa 61,1% da movimentação de cargas, pois contribuem para a redução da quantidade de caminhões nas estradas, melhorando a fluidez e a segurança. O objetivo deste trabalho é promover um estudo logístico por meio de um modelo matemático baseado no Three Dimensional Bin Packing Problem para arrumação da carga dentro dos veículos utilizados no transporte de produtos alimentícios de forma a otimizar a sua capacidade volumétrica. O modelo proposto visa um melhor aproveitamento da capacidade volumétrica dos veículos considerando a disposição em três dimensões das cargas, área de suporte, sequência de entrega das cargas, para evitar bloqueios, rotação das caixas no plano X-Y e caixas de geometria paralelepipédica. A solução alcançada pelo modelo apresentou ganhos importantes em relação ao planejamento manual realizado pela empresa, reduzindo a utilização de caminhões e gerando ganhos econômicos.

  12. Use of ethanol in public urban transport: BEST (BioEthanol for Sustainable Transport) Project; Uso de etanol no transporte publico urbano: projeto BEST (Bio Ethanol para o Transporte Sustentavel)

    Energy Technology Data Exchange (ETDEWEB)

    Moreira, Jose Roberto; Apolinario, Sandra; Pecora, Vanessa [Universidade de Sao Paulo (CENBIO/USP), SP (Brazil). Inst. de Eletrotecnica e Energia. Centro Nacional de Referencia em Biomassa; Velazquez, Silvia [Universidade Presbiteriana Mackenzie, Sao Paulo, SP (Brazil)

    2008-07-01

    This paper present the BEST project - Bio Ethanol for Sustainable Transport, that aims to promote the ethanol usage, replacing diesel, in the urban public transport in Brazil and worldwide. Apart from Sao Paulo, leading city in the Americas, another eight cities located in Europe and Asia takes part in the project. One of the Brazilian project's goals is to evaluate ethanol usage as diesel fuel replacement in public transport buses by comparatively following the operational output of the experimental fleet, taking as reference an equivalent diesel bus. The utilized test vehicles will be evaluated and monitored to demonstrate ethanol energetic efficiency and, after the results the BEST project and the European Union will set a blue print for public policies to incentive ethanol usage in the urban public transport. The results will allow identifying technical and economical barriers that will eventually overlap the viability process of this technology in the Brazilian public transport. (author)

  13. Use of ethanol in public urban transport: BEST (BioEthanol for Sustainable Transport) Project; Uso de etanol no transporte publico urbano: projeto BEST (Bio Ethanol para o Transporte Sustentavel)

    Energy Technology Data Exchange (ETDEWEB)

    Moreira, Jose Roberto; Apolinario, Sandra; Pecora, Vanessa [Universidade de Sao Paulo (CENBIO/USP), SP (Brazil). Inst. de Eletrotecnica e Energia. Centro Nacional de Referencia em Biomassa; Velazquez, Silvia [Universidade Presbiteriana Mackenzie, Sao Paulo, SP (Brazil)

    2008-07-01

    This paper present the BEST project - Bio Ethanol for Sustainable Transport, that aims to promote the ethanol usage, replacing diesel, in the urban public transport in Brazil and worldwide. Apart from Sao Paulo, leading city in the Americas, another eight cities located in Europe and Asia takes part in the project. One of the Brazilian project's goals is to evaluate ethanol usage as diesel fuel replacement in public transport buses by comparatively following the operational output of the experimental fleet, taking as reference an equivalent diesel bus. The utilized test vehicles will be evaluated and monitored to demonstrate ethanol energetic efficiency and, after the results the BEST project and the European Union will set a blue print for public policies to incentive ethanol usage in the urban public transport. The results will allow identifying technical and economical barriers that will eventually overlap the viability process of this technology in the Brazilian public transport. (author)

  14. Transportation

    International Nuclear Information System (INIS)

    Anon.

    1998-01-01

    Here is the decree of the thirtieth of July 1998 relative to road transportation, to trade and brokerage of wastes. It requires to firms which carry out a road transportation as well as to traders and to brokers of wastes to declare their operations to the prefect. The declaration has to be renewed every five years. (O.M.)

  15. Diseño de un Modelo de Operación para Ruteo de Transporte Urbano Basado en Simulación Discreta

    Directory of Open Access Journals (Sweden)

    Pedro Riquelme

    2015-07-01

    Full Text Available Las grandes ciudades enfrentan una movilidad caótica producto del incremento del parque automotor, ocasionada por la falta planeación ante los nuevos sistemas de transporte. Un sistema de transporte ideal no se caracteriza por utilizar la totalidad de su capacidad en un único recorrido; sino por la disminución del uso de vehículos particulares. La participación de los Sistemas de Transporte Inteligente lo ha incrementado (Transantiago en Chile, y Transmetro en Barranquilla, aunque su implementación no garantiza el éxito en su operación; la sostenibilidad de las medianas y pequeñas empresas de transporte público pueden verse afectada. Por lo anterior, se propone de un modelo de simulación para una empresa de transporte de Barranquilla, Colombia, se determinan los aspectos internos y externos que pueden afectar al sistema, para determinar una solución subóptima, que permita mitigar el impacto social y financiero de la empresa en su entorno, se utilizan datos históricos-operacionales proporcionados por una empresa del rubro, así como un modelo de operación preliminar. Abstract The Big cities face a chaotic mobility due to the increase of the fleet, caused by lack planning to new transport systems. An ideal transport system is not characterized by full use of its capacity in a single journey; but by reducing the use of private vehicles. The participation of Intelligent Transportation Systems has increased (Transantiago in Chile, and Transmetro in Barranquilla, but its implementation does not guarantee success in its operation; the sustainability of small and medium enterprises public transport may be affected. Therefore, it is proposed a simulation model for a transport company of Barranquilla, Colombia, internal and external aspects that can affect the system are determined, to determine an optimal solution that allows mitigate the social and financial impact of the company in its environment, historical and operational data

  16. Transportation

    National Research Council Canada - National Science Library

    Allshouse, Michael; Armstrong, Frederick Henry; Burns, Stephen; Courts, Michael; Denn, Douglas; Fortunato, Paul; Gettings, Daniel; Hansen, David; Hoffman, D. W; Jones, Robert

    2007-01-01

    .... The ability of the global transportation industry to rapidly move passengers and products from one corner of the globe to another continues to amaze even those wise to the dynamics of such operations...

  17. Uso de traçadores fluorescentes para determinar características de transporte e dispersão no Rio Piabanha (RJ) para a modelagem quali-quantitativa pelo HEC-RAS

    OpenAIRE

    Silva, Paulo Vitor Ribeiro Marques da; Pecly, José Otávio Goulart; Azevedo, José Paulo Soares de

    2017-01-01

    RESUMO Um estudo de campo foi realizado em um trecho de aproximadamente 70 km do rio Piabanha, localizado entre Petrópolis e Areal, na região serrana do Estado do Rio de Janeiro, para estimar as características de transporte e dispersão de contaminantes usando técnicas de traçadores fluorescentes. A análise dos resultados de dois trabalhos de campo, realizados no outono de 2012, permitiu determinar os valores de tempo de trânsito, vazão líquida, velocidade média e coeficiente de dispersão lon...

  18. Modelo de elección discreta de la demanda de transporte urbano para quito y Guayaquil, 2003 – 2004

    OpenAIRE

    Campos M., Daisy; Suri V, Vanessa; Intriago Ruiz, Xavier

    2009-01-01

    El mercado de transportación urbana, ha sido analizado desde la demanda como una elección entre alternativas que deben ser rivales entre tipo publico y privado. Desarrollamos un modelo probit de elección binomial de McFadden. Para el desarrollo de este estudio se utilizara información de la Encuesta Nacional de Ingresos y Gastos de los Hogares Urbanos (ENIGHU), elaborados por el INEC para el periodo de febrero del 2003 hasta enero del 2004, con una muestra de 5.283 hogares, realizada para Q...

  19. O USO DA MENSURAÇÃO DE DESEMPENHO PARA A COMPARAÇÃO DOS SISTEMAS DE TRANSPORTES URBANOS PÚBLICOS

    Directory of Open Access Journals (Sweden)

    Alvaro Luiz Neuenfeldt Júnior

    2015-02-01

    Full Text Available Inserido ao contexto social e demográfico das cidades, os sistemas de transportes públicos são considerados como um dos principais elementos para a dinâmica da mobilidade urbana. Atualmente, existem diversos modais capazes de realizar tal tarefa, o que torna o processo de comparação entre eles relevante, visto a relação custo-benefício do investimento necessário para a sua implantação. Portanto, a presente pesquisa objetiva propor uma modelagem capaz de realizar a avaliação entre sistemas de transportes públicos, através dos conceitos relativos aos métodos multicritérios de apoio à decisão e a mensuração de desempenho. Para a aplicação prática, utilizou-se o design urbano inspirado na cidade de Curitiba, constatando-se o BRT como o mais viável. Por fim, concluiu-se que a modelagem se mostrou coerente no que tange a verificação das possíveis condições de operação em um centro urbano, sendo capaz de possibilitar a previsão da maneira com que estes estão predispostos ao contexto em questão.

  20. Os Usos de Simuladores Durante a Formação Profissional para a Condução de Transportes Rodoviários

    Directory of Open Access Journals (Sweden)

    Thiago Drumond Moraes

    Full Text Available Resumo Este estudo teórico pretende contribuir com o debate sobre o uso de simuladores nos processos de formação para os profissionais de transporte terrestre rodoviário. Nesse tipo de transporte no Brasil ocorrem muitos acidentes, configurando-se em um problema de saúde pública. Procurou-se analisar criticamente, a partir da produção acadêmica sobre uso de simuladores, suas potencialidades em situações de formação para condutores profissionais. A partir de uma perspectiva ergológica, que permite a articulação com outras clínicas do trabalho, também utilizadas, o artigo tem como objetivos: discutir as características que conformam a atividade de condução, fazer uma análise dos pressupostos epistemológicos subjacentes às pesquisas e treinamentos que usam simuladores e articular criticamente tais pontos para avaliar a pertinência do uso de simuladores em processos de formação profissional. Evidenciou-se que os processos de formação profissional mediado pelo uso de simuladores podem ser pertinentes para a grave situação do trânsito brasileiro, embora se reconheça ausência de pesquisas nacionais sobre a temática, bem como alguns possíveis limites da perspectiva epistemológica utilizadas nas pesquisas internacionais, afetando a eficácia deste uso.

  1. Metodología para resolver la ecuación del transporte con el código de ordenadas discretas TORT en el reactor IPEN/MB-01

    OpenAIRE

    Bernal, A.; Abarca Giménez, Agustín; Barrachina Celda, Teresa María; Miró Herrero, Rafael; Verdú Martín, Gumersindo Jesús

    2013-01-01

    La resolución de la Ecuación del Transporte Neutrónico en estado estacionario en reactores nucleares de tipo piscina, se consigue normalmente por medio de 2 métodos numéricos diferentes: Monte Carlo (estocástico) y Ordenadas Discretas (determinista). El método de las Ordenadas Discretas resuelve la Ecuación del Transporte Neutrónico para un conjunto de determinadas direcciones, obteniendo un conjunto de ecuaciones y soluciones para cada dirección, donde la solución para cada dirección es el f...

  2. Ecoefficiency indicators for natural gas transportation companies; Proposta de indicadores de desempenho ambiental para empresas do segmento de transporte de gas natural

    Energy Technology Data Exchange (ETDEWEB)

    La Rovere, Emilio Lebre; Mariano, Jacqueline Barboza; Garcia, Katia Cristina; Salgado, Vivian Gullo [Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia. Programa de Planejamento Energetico; Faertes, Denise [TRANSPETRO - PETROBRAS Transporte, Rio de Janeiro, RJ (Brazil); Barata, Martha Macedo de Lima [Fundacao Inst. Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, RJ (Brazil)

    2005-07-01

    This paper aims to present a cast of environmental indicators, more specifically ecoefficiency indicators, to natural gas pipeline transportation companies. So as to do that, are defined the concepts of ecoefficiency and sustainability with its principal related environmental indicators. The environmental impacts and aspects of the natural gas pipeline transportation are discussed, and the concept of cleaner service and production is considered in the context of this activity. Are also presented and analyzed the most important indicators of environmental performance used by oil and gas companies and by natural gas transportation companies, so as to support the choice of the proposed indicators. Finally, the cast of the indicators, which was based on the assessment of the Brazilian Northeast System of gas pipelines, operated by PETROBRAS Transporte S.A., TRANSPETRO, is presented. (author)

  3. Analysis CFD for the hydrogen transport in the primary containment of a BWR; Analisis CFD para el transporte de hidrogeno en la contencion primaria de un reactor BWR

    Energy Technology Data Exchange (ETDEWEB)

    Jimenez P, D. A.; Del Valle G, E. [IPN, Escuela Superior de Fisica y Matematicas, Av. IPN s/n, Edificio 9, Col. San Pedro Zacatenco, 07738 Mexico D. F. (Mexico); Gomez T, A. M., E-mail: guerreroazteca_69@hotmail.com [ININ, Departamento de Sistemas Nucleares, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2014-10-15

    This study presents a qualitative and quantitative comparison among the CFD GASFLOW and OpenFOAM codes which are related with the phenomenon of hydrogen transport and other gases in the primary containment of a Boiling Water Reactor (BWR). GASFLOW is a commercial license code that is well validated and that was developed in Germany for the analysis of the gases transport in containments of nuclear reactors. On the other hand, OpenFOAM is an open source code that offers several evaluation solvers for different types of phenomena; in this case, the solver reacting-Foam is used to analyze the hydrogen transport inside the primary containment of the BWR. The results that offer the solver reacting-Foam of OpenFOAM are evaluated in the hydrogen transport calculation and the results are compared with those of the program of commercial license GASFLOW to see if is viable the use of the open source code in the case of the hydrogen transport in the primary containment of a BWR. Of the obtained results so much quantitative as qualitative some differences were identified between both codes, the differences (with a percentage of maximum error of 4%) in the quantitative results are small and they are considered acceptable for this analysis type, also, these differences are attributed mainly to the used transport models, considering that OpenFOAM uses a homogeneous model and GASFLOW uses a heterogeneous model. (Author)

  4. Proyecto de inversión para la creación de una empresa de transporte y turismo entre las ciudades de Guayaquil y Machala

    OpenAIRE

    Camacho Villagomez, Freddy; Maldonado Ojeda, Ernesto; Tobalina Ditto, Constantino Francisco

    2009-01-01

    El proyecto es sobre la creación de una empresa para brindar transporte ejecutivo entre Guayaquil y Machala. Este consta de tres partes principales: El estudio de mercado, el Estudio técnico y organizacional y el análisis financiero del proyecto. El estudio de mercado involucró un análisis sobre el tipo de negocio, la competencia actual del mercado y el entono micro y macro en el que se desarrollaría la empresa. Se definieron objetivos generales y específicos basados en una estrategia de m...

  5. Auditoría por riesgos de la gestión de la continuidad de negocio para el Consejo de Transporte Público

    OpenAIRE

    Esquivel Asenjo, Karla

    2015-01-01

    Tesis de maestría -- Universidad de Costa Rica. Posgrado en Administración y Dirección de Empresas. Maestría Profesional en Auditoría de Tecnologías de Información, 2015 El presente estudio de auditoría evalúa la razonabilidad de la Gestión de la Continuidad del Negocio de acuerdo con las políticas y mejores prácticas aplicables para asegurar la disponibilidad de la información en el Consejo de Transporte Público. Los resultados del análisis efectuado, se realizan basados en el program...

  6. Propuesta para el mejoramiento del clima organizacional del personal policial de la Seccional de Tránsito y Transporte del departamento de Santander, Colombia

    OpenAIRE

    2012-01-01

    La presente propuesta estudia la situación actual del clima organizacional de la Seccional de Tránsito Transporte del departamento de Policía en Santander, hace un seguimiento especial a los indicadores de deserción, renuncias, retiros por diversas causas. El proyecto busca proponer estrategias asertivas para el mejoramiento del clima organizacional de la unidad, con el fin de ofrecer alternativas, programas y planes que al ser ejecutados permitan mejorar el clima organizacional y por lo tant...

  7. PROYECCIÓN DE COSTOS DE UN BUS ARTICULADO CON MOTOR DEDICADO A GAS NATURAL PARA SER UTILIZADO EN LOS SISTEMAS DE TRANSPORTE MASIVO DE COLOMBIA

    OpenAIRE

    JUAN MANTILLA; HELMER ACEVEDO; CARLOS DUQUE; CARLOS GALEANO; SERGIO CARRION

    2009-01-01

    El objetivo del presente trabajo es mostrar los resultados del estudio comparativo de costos entre dos buses articulados que operan con diferentes combustibles, gas natural comprimido y diesel. Los resultados se utilizarán para establecer la viabilidad económica de la implementación de flotas de este tipo de buses en los sistemas de transporte masivo de las grandes ciudades colombianas. La proyección se realizó siguiendo las recomendaciones de operación y mantenimiento dadas por los fabricant...

  8. Sistema de Apoio à Decisão para o Transporte Não Urgente de Doentes em Veículo Partilhado

    Directory of Open Access Journals (Sweden)

    José António Oliveira

    2014-06-01

    Full Text Available O transporte não urgente de doentes em Portugal foi alvo de reformulação legislativa de modo a reduzir os custos que acarretava. Neste artigo apresentam-se métodos heurísticos para a formação de agrupamentos de doentes a serem transportados na mesma viatura. São apresentados resultados computacionais que validam os algoritmos desenvolvidos. Os algoritmos podem ser facilmente integrados num sistema de apoio à decisão.

  9. Establishment and utilization of radiological protection programs for the transport of radioactive material; Establecimiento y utilizacion de programas de proteccion radiologica para el transporte de material radiactivo

    Energy Technology Data Exchange (ETDEWEB)

    Lopez V, J.; Capadona, N. [Autoridad Regulatoria Nuclear, Av. Del Libertador 8250 (1429) Buenos Aires, (Argentina)]. e-mail: jlvietri@sede.arn.gov.ar

    2006-07-01

    The present work has by objective to indicate rules for the establishment and the use of the Radiological Protection Programs (PPR) that are of application to the transport of radioactive materials according to that required by the Transport Regulation of the International Atomic Energy Agency (IAEA). The PPR are established and applied in systematic form for remittent, transport and addressees, to consider the measures of radiological protection and its appropriately control during the transport stages of radioactive material. In particular, in the work it is analyzed the PPR applied to the operative stage, in the one that can be considered as one of the more important documents to use since it summarizes the evaluations and the necessary controls of radiological protection. Also it is analyzed the importance that this document gets ready on the base that it converges in the the analyses, evaluations and data that have been kept in mind during the previous stages of design of bundles and production of packings, the types and quantities of involved bundles, as well as of considering the quantities of expeditions and its frequencies, the ways of transport, etc. It is included a brief description of the parts that the PPR conforms on the base of that suggested in the advanced draft of the TS-G-1.5 Guide 'Radiation Protection Programmes for Transport of Radioactive Material', of October, 2005, of the IAEA: objectives. necessity, scope, basic elements of a PPR in function of the occupational dose. assignment of functions and responsibilities for the establishment of a PPR, evaluation and dose optimization, surface contamination, segregation and other protection measures, responses in emergencies. training and administration systems for baled and transport of radioactive material. Next an example of PPR for the transport of bundles of the A Type by lorry with content of radiopharmaceuticals that are the bundles more used worldwide in the expeditions of

  10. Uso de traçadores fluorescentes para determinar características de transporte e dispersão no Rio Piabanha (RJ para a modelagem quali-quantitativa pelo HEC-RAS

    Directory of Open Access Journals (Sweden)

    Paulo Vitor Ribeiro Marques da Silva

    Full Text Available RESUMO Um estudo de campo foi realizado em um trecho de aproximadamente 70 km do rio Piabanha, localizado entre Petrópolis e Areal, na região serrana do Estado do Rio de Janeiro, para estimar as características de transporte e dispersão de contaminantes usando técnicas de traçadores fluorescentes. A análise dos resultados de dois trabalhos de campo, realizados no outono de 2012, permitiu determinar os valores de tempo de trânsito, vazão líquida, velocidade média e coeficiente de dispersão longitudinal. Utilizou-se os dados de vazão e velocidade média obtidos nos ensaios com traçadores para calibrar o modelo hidrodinâmico unidimensional Hydrologic Engineering Center’s River Analysis System (HEC-RAS. Considerando que parâmetros hidráulicos obtidos por métodos clássicos em rios com geometria muito irregular, como a do rio Piabanha, não são adequados para representar as características médias de um trecho, os ensaios com traçadores representaram uma boa alternativa para obtenção de parâmetros necessários a modelos hidrodinâmicos. Os resultados obtidos pelo modelo HEC-RAS apresentaram ótima concordância com os dados obtidos por meio dos ensaios com traçadores fluorescentes.

  11. Transportation

    Science.gov (United States)

    2007-01-01

    Faculty ii INDUSTRY TRAVEL Domestic Assistant Deputy Under Secretary of Defense (Transportation Policy), Washington, DC Department of...developed between the railroad and trucking industries. Railroads: Today’s seven Class I freight railroad systems move 42% of the nation’s intercity ...has been successfully employed in London to reduce congestion and observed by this industry study during its travels . It is currently being

  12. Some analytic diagnostic models for transport processes in estuarine and coastal waters; Algunos modelos analiticos de diagnostico para procesos de transporte en estuarios y aguas costeras

    Energy Technology Data Exchange (ETDEWEB)

    Suarez Antola, R [Industry Energy and Mining Ministry, National Direction of Nuclear Technology, Montevideo (Uruguay)

    2001-03-01

    Advection and dispersion processes in estuarine and coastal waters are briefly reviewed. Beginning from the basic macroscopic equations of transport for a substance diluted or suspended in the considered body of water,several levels of filtering in time and space are described and applied to obtain suitable diagnostic mathematical models both with scale effects and gaussian.The solutions of the aforementioned models,for initial distributions and boundary conditions with enough symmetry,are discussed, as well as their applications to a parameter characterization of the transport properties of the receiving body of water.

  13. Proposta de metodologia para classificação de empresas de transporte rodoviário de combustíveis líquidos

    Directory of Open Access Journals (Sweden)

    Marne Lieggio Júnior

    2009-10-01

    Full Text Available

    O objetivo deste trabalho consiste em propor uma metodologia de classificação de empresas de transporte rodoviário de combustíveis líquidos, de forma a oferecer ao embarcador uma ferramenta de apoio à tomada de decisão, no processo de contratação de uma transportadora. A metodologia de classificação é construída a partir da visão de três grupos de atores: os transportadores de combustível líquido, técnicos da Agência Nacional de Transportes Terrestres – ANTT e especialistas em transporte e logística. Os atributos da oferta de serviço importantes para o transporte rodoviário de combustíveis líquidos levantados junto aos grupos de atores entrevistados deram suporte à elaboração da proposta metodológica.

  14. Training and improvement of professional person: multimedia training for radioactive material transport; Capacitacao e aperfeicoamento profissional: treinamento multimidia para transporte de materiais radioativos

    Energy Technology Data Exchange (ETDEWEB)

    Sahyun, A.; Sordi, G.M., E-mail: asahyun@ipen.br, E-mail: adelia@atomo.com.br [ATOMO - Radioprotecao e Seguranca Nuclear S/S Ltda, Sao Paulo, SP (Brazil); Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); Ghobril, C.N., E-mail: nabil@sp.gov.br [Governo de Sao Paulo, SP (Brazil). Instituto de Economia Agricola - IEA; Levy, D.S.; Levy, P.J., E-mail: patrick@omiccron.com.br [Omiccron Programacao Grafica, Sao Paulo, SP (Brazil)

    2013-07-01

    The international transport of radioactive materials depends on national regulations of different countries, through which they pass. Therefore, it is necessary to learn the international recommendations in order to avoid contradictions among each country own regulations that can make radioactive materials transport impracticable. Information Technology and Communication has grown in Brazil and abroad, increasing demand for long distance learning, since it allows simultaneous training and education of a large number of geographically distant people in short time. The development of this first web-based course of transport for radioactive materials considered many advantages when compared to traditional courses, such as: agility in developing, translating and updating courses; facility of access and compatibility with various educational platforms all over the world. The course covers five topics. It presents regulations for transportation of dangerous materials and categorizes radioactive materials; it discusses the requirements and classification of radioactive material packing; ir discusses different risk labels and when they should be used; it presents responsibility and administrative requirements. Furthermore, considering the increasing use of mobile computing, the content is supposed to be automatically adjusted to different devices, allowing the user to make use of multiple access points without losing the sequence of the course. Initially developed in Portuguese and Spanish, this technology allows the dissemination of knowledge in Portuguese and Spanish spoken countries. It is our target to expand this Project, translating the course to other languages. The monitoring of access profiles and users feedback will guide the development of the next courses for the sector. (author)

  15. Radiological emergency: road map for radiation accident victim transport; Emergência radiológica: roadmap para o transporte de radioacidentado

    Energy Technology Data Exchange (ETDEWEB)

    Costa, V.S.G.; Alcantara, Y.P. [Faculdade Casa Branca, SP (Brazil); Lima, C.M.A. [MAXIM Cursos, Rio de Janeiro, RJ (Brazil); Silva, F. C. A. da, E-mail: franciscodasilva13uk@gmail.com [Instituto de Radioproteção e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil)

    2017-07-01

    During a radiological or nuclear emergency, a number of necessary actions are taken, both within the radiation protection of individuals and the environment, involving many institutions and highly specialized personnel. Among them it is possible to emphasize the air transportation of radiation accident victims.The procedures and measures for the safe transport of these radiation accident victims are generally the responsibility of the armed forces, specifically the Aeronautics, with the action denominated 'Aeromedical Military Evacuation of Radiation Accident Victims'. The experience with the Radiological Accident of Goiânia demonstrated the importance of adequate preparation and response during a radiological emergency and the need for procedures and measures with regard to the transport of radiation victims are clearly defined and clearly presented for the effectiveness of the actions. This work presents the necessary actions for the transport of radiation accident victim during a radiological emergency, through the road map technique, which has been widely used in scientific technical area to facilitate understanding and show the way to be followed to reach the proposed objectives.

  16. Application of oil spill environmental vulnerability analysis to Brazilian road networks for hazardous cargo transportation; Aplicacao do indice de vulnerabilidade rodoviario para transporte de cargas perigosas

    Energy Technology Data Exchange (ETDEWEB)

    Mattos, M. Beatriz da Costa; Silva Junior, Carlos Leandro da; Almeida, Ana Flavia Oliveira de [Ambipetro Consultoria em Meio Ambiente e Petroleo Ltda., Natal, RN (Brazil)

    2008-07-01

    Roads provide the main means of transportation in Brazil. According to data from the Brazilian Department of Infrastructure and Transport, 96.2% of the passenger transportation and 61.8% of the cargo transportation are based on road infrastructure. However, three quarters of the Brazilian roads are in terrible, unsatisfactory or generally inadequate condition. Poor road conditions are responsible for a great number of accidents with severe consequences for the population and the environment. Given the importance of this matter, there is a need to develop an intelligent system for automatic classification of social and environmental sensitivity maps in order to support actions that respond to emergencies and to help in transportation planning, especially considering the heavy movement of hazardous cargoes such as petroleum and its derivates. For this, tools such as Geographic Information System (GIS) allow social-environmental and traffic engineering characterization maps to be analyzed on a unified, geo referenced digital base. This way, administrators can estimate which stretches of the network are more environmentally sensitive and which pose greater risks, and therefore draw inferences on the most socially and environmentally vulnerable. Social and environmental vulnerability data not only help in the classification of the areas which pose the greater risks, but also make it possible to decide on emergency support points, creating a culture of prevention in the area of hazardous cargo transportation. The case study on the state of Rio Grande do Norte provides a measure of the importance of such work. The city of Natal - the state capital - and the Guamare petrochemical facility are interconnected by 180 Km Road, on which more than 100 tanker trucks loaded with diesel and its derivates travel every day. This road is classified as in poor conditions and, according to the Brazilian Roads Police, it is one of the most dangerous. The relevance of this work is to show

  17. Instrumento de avaliação para melhorias em processos organizacionais: caso do transporte coletivo rodoviário urbano de Porto Alegre Assessment instrument for organizational process improvement: the case of urban passengers transportation in Porto Alegre

    Directory of Open Access Journals (Sweden)

    Miriam Borchardt

    2007-08-01

    Full Text Available Este artigo apresenta os dados obtidos a partir de estudos de casos em três empresas de transporte coletivo rodoviário urbano de Porto Alegre, estudos estes realizados no segundo semestre de 2004. O objetivo da pesquisa foi desenvolver um instrumento gerencial para a avaliação do potencial de melhoria dos processos destas organizações. Para desenvolver o instrumento de diagnóstico foi considerada a realidade do setor de transporte por ônibus nesta capital e a base teórica referente aos sistemas de gestão baseados na melhoria dos processos, tais como os critérios de excelência do prêmio ANTP de Qualidade, os princípios da Mentalidade Enxuta e do Lean Management. A definição do valor a ser oferecido pelo serviço de transporte, com base na percepção dos usuários, é um ponto que aparece como de grande potencial de melhoria, bem como o equilíbrio entre demanda e capacidade instalada.This paper presents data and information collected in the second semester of 2004, in a multiple case study developed in three city public bus transportation companies, operating in Porto Alegre. The goal of the research was to develop an instrument for assessing the potential for streamlining processes in companies. To do so, it was considered the business scenario of companies and industry, and the theoretical framework presented in Lean Thinking, ean Management, Award Excellence Criteria of industry. Issues related to perceived value present the major gaps between the degree of importance and degree of application attributed by these companies. Secondary gaps refer to balancing service capacity and demand.

  18. Design of Algorithms for their Use in the Control of Solutes Transport in Contaminated Aquifers; Diseno de algoritmos para su uso en el control del transporte de solutos en acuiferos contaminados

    Energy Technology Data Exchange (ETDEWEB)

    Martinez Najera, Juan Diego [Comision Federal de Electricidad (Mexico)

    2002-06-01

    This paper establishes the theoretical foundations of a mathematical methodology to approach the rehabilitation of aquifers contaminated by dissolved substances, with the assistance of numerical techniques. The derived algorithms are of control or management type, since simultaneously to the predictive numerical solution of the solute transport equation, they determine those solutions that fulfil water quality restrictions. The controlling variable is the concentration of the polluting agent dissolved in the flow field. The considerations are kinematics because they take into account the advection and dispersion terms, but they also considerate the first order kinetic sorption model and the sources/sinks for the concentration. We describe the physical arguments and mathematical theory of subdiferentials necessary to establish the control problem of initial and boundary values for the solutes transport equation; afterwards, the primal variational model and the mixed of dual internal control as well as the formal discrete version of both formulations are obtained, so that solution algorithms of finite element semi discrete type are generated. Due to the hyperbolic-parabolic character of the transport equation, when the advective tem is dominant, in this work it is approximated by means of the lkeda's partial upwind technique. To prove the theory a hypothetical example is presented, and we analyze the two possible cases for the concentration of a polluting agent: when it dose not exceed and when it escapes the regulator limits of water quality. In both situations the primal and mixed algorithms determine the appropriate numerical solutions of each kind of problem. [Spanish] Este trabajo establece los fundamentos teoricos de una metodologia matematica para abordar la rehabilitacion de mantos acuiferos contaminados por sustancias disueltas, con la asistencia de tecnicas numericas. Los algoritmos que se derivan son de control o de manejo, ya que inmerso a la

  19. Simulation of radiation transport using MCNP for a teletherapy machine; Simulacion del transporte de radiacion usando MCNP para una maquina de teleterapia

    Energy Technology Data Exchange (ETDEWEB)

    Flores O, F.E.; Mireles G, F.; Davila R, J.I.; Pinedo V, J.L.; Risorios M, C.; Lopez del Rio, H. [UAZ, Unidad Academica de Estudios Nucleares, 98068 Zacatecas (Mexico)

    2008-07-01

    The MCNP code is used to simulate the radiation transport taking as tools the transport physics of each particle, either photon, neutron or electron, and the generation of random numbers. Developed in the Los Alamos National Laboratory, this code has been used thoroughly with great success, because the results of the simulations are broadly validated with representative experiments. In the one present work the room of radiotherapy of the Institute Zacatecano of the Tumor it is simulated, located in the city of Zacatecas where one is Theratron 780C machine manufactured by MSD Nordion, with the purpose of estimating the contribution to the dose that would be received in different points of the structure, included three directly under the source. Three results of analytical calculations for points located at different distances from the source are presented, and they are compared against those obtained by the simulation. Its are also presented results for the simulation of 10 points more distributed around the source. (Author)

  20. The possibilities and the feasibility of the use of Bioethanol as well as Biodiesel as fuels for the Mexican transport; Potenciales y Viabilidad del Uso de Bioetanol y Biodiesel para el Transporte en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Masera Cerutti, Omar [Universidad Nacional Autonoma de Mexico, Mexico D.F. (Mexico); Rodriguez Martinez, Nicolas [Instituto Mexicano del Petroleo, Mexico D.F. (Mexico); Martinez, Ignacio Lazcano [and others

    2006-07-01

    It is contained in this report a thorough study about the possibilities of the use of bioethanol or biodiesel as fuels for the Mexican transport. Such study was coordinated by the Mexican Secretary of Energy (SENER) and it was sponsored by both the Inter-American Development Bank (project ME-T1007 - ATN/DO-9375-ME) and the GTZ (German Technical Cooperation) (Project PN 04.21487.7-001.00) commissioned by the Federal Ministry for Economic Cooperation and Development (BMZ). Having hired a group of Mexican and International consultants, in order to carry out the different activities of this study. Following, it will be presented the major results of the study of each of the analyzed fuels: bioethanol and biodiesel. As a result of the individual analysis that was carried out, the problems and the technological alternatives as well as those concerning the policies are quiet specifics for each of the fuels, despite the common properties they have. It is found on the final document of the project (Final report), the detailed reports of each of these activities for both ethanol and biodiesel. [Spanish] Este reporte contiene un estudio exhaustivo sobre las posibilidades del bioetanol y el biodiesel como combustibles para el transporte en Mexico. El estudio fue coordinado por la Secretaria de Energia de Mexico (SENER) y patrocinado por el Banco Interamericano de Desarrollo (Proyecto ME-T1007 - ATN/DO-9375-ME) y la GTZ (Cooperacion Tecnica Alemana) (Proyecto PN 04.2148.7-001.00) por encargo del Ministerio de Cooperacion Economica y de Desarrollo (BMZ). Para la realizacion de las diferentes actividades de este estudio se contrato un grupo de consultores mexicanos e internacionales. A continuacion se presentan los principales resultados del estudio para cada uno de los combustibles analizados: bioetanol y biodiesel. Aunque existen aspectos comunes a estos combustibles, la problematica y las opciones tecnologicas y de politica son muy especificas a cada uno de ellos, lo que

  1. Relevant Organizational Factors for Social Efficiency in the Road Transport Sector; Procesos Organizativos Clave para la Eficiencia Social en el Transporte por Carretera

    Energy Technology Data Exchange (ETDEWEB)

    Silla, I; Gamero, N

    2011-12-27

    Previous research has emphasized the need to consider the social dimension featuring organizations in order to maximize organizational efficiency (Rasmussen, 1997). In the road transport sector, previous research has focused on the relationship between human factor, stress, fatigue, and other relevant issues, and professional drivers health and safety (p.e., De Croon et al, 2004). However, research on relevant organizational factors is scarce. This study aims to examine the association between leadership and supportive climate, and employees health and safety. Moreover, the impact of stress (time pressure) was also examined because previous research has stressed its importance. This study used a sample of 486 employees from 35 different Spanish companies pertaining to the road transport sector. Findings showed time pressure to be negatively associated to employees health, job satisfaction and satisfaction with safety. Additionally, leadership was positively associated employees health, job satisfaction and satisfaction with safety. Finally, co-workers and supervisors supportive climate was positively associated with job satisfaction and negatively associated to illness. These findings have relevant practical implications for the competitiveness of road transport companies. (Author) 21 refs.

  2. Embalagens retornáveis para transporte de bens manufaturados: um estudo de caso em logística reversa Returnable packaging for transportation of manufactured goods: a case study in reverse logistics

    Directory of Open Access Journals (Sweden)

    Diogo Adlmaier

    2007-08-01

    Full Text Available Este artigo descreve um estudo de caso em logística reversa sobre embalagens retornáveis adequadas para transporte internacional de peças para motores a diesel. O estudo diz respeito a cabeçotes exportados do Brasil para os Estados Unidos da América, por via marítima. Inicia-se por uma revisão em logística reversa. A seguir descreve-se o caso, com base em informações colhidas pelos pesquisadores junto à empresa. Descrevem-se os fatos, investigam-se as causas que os originaram e compara-se o processo original de exportação, com embalagens descartáveis, com o novo processo, com embalagens retornáveis, que opera um canal de distribuição reverso. Avaliaram-se os ganhos financeiros, logísticos e ambientais do projeto, de forma a relacionar criticamente a teoria com a prática.This paper describes a case study in reverse logistics, dealing with returnable packaging, suitable for international transportation of parts required by diesel engines assembly operations. The study refers to cylinder heads, exported from Brazil to USA, by sea. The paper begins by revisiting issues in reverse logistics. Then describes the case, supported by information gathered by researchers with technical personnel from the firm. Beyond the pure facts, the researchers aimed to find out why the firm took such a decision, comparing the exportation process, how it was and how it is now, and the operation of a reverse distribution channel. The text assesses financials, logistics and environmental benefits from the actions, relating critically theory and practice.

  3. Transporte intra-hospitalar de pacientes internados em UTI Neonatal: fatores de risco para intercorrências Intra-hospital transport of neonatal intensive care patients: risk factors for complications

    Directory of Open Access Journals (Sweden)

    Anna Luiza P. Vieira

    2007-09-01

    Full Text Available OBJETIVO: Estudar os fatores associados à hipotermia e ao aumento da necessidade de oxigênio e/ou suporte ventilatório durante o transporte intra-hospitalar de pacientes internados em Unidade de Terapia Intensiva neonatal. MÉTODOS: Estudo prospectivo de todos os pacientes internados na unidade neonatal que necessitaram de transporte intra-hospitalar de janeiro de 1997 a dezembro de 2000, entre segundas-feiras e sextas-feiras, das 8h às 17h. Fatores associados à hipotermia e ao aumento da necessidade de oxigênio e/ou de suporte ventilatório durante e até duas horas após o transporte foram estudados por meio de regressão logística. RESULTADOS: Foram realizados 502 transportes no período. Os pacientes tinham em média 2.000g, 35 semanas de idade gestacional ao nascer e 22 dias de vida. As principais indicações do transporte foram: cirurgia e realização de exames de imagem. A hipotermia ocorreu em 17% dos transportes e o aumento da necessidade de oxigênio e/ou de suporte ventilatório em 7%. Fatores associados à hipotermia foram: duração do transporte >3h (OR=2,1; IC95%=1,2-3,6, presença de malformações neurológicas (OR=1,7; IC95%=1,1-2,5, transporte realizado em 1997 (OR=1,7; IC95%=1,1-2,6 e peso no transporte >3.500g (OR=0,3; IC95%=0,16-0,68. Fatores de risco para o aumento da necessidade de oxigênio e/ou de suporte ventilatório foram: idade gestacional ao nascimento em semanas (OR=0,9; IC95%=0,8-0,9, idade em dias no transporte (OR=1,0; IC95%=1,0-1,1 e presença de malformações gastrintestinais e geniturinárias (OR=3,1; IC95%=1,6-6,2. CONCLUSÕES: As intercorrências relativas ao transporte intra-hospitalar são freqüentes nos neonatos em UTI e estão associadas às condições dos pacientes e dos transportes.OBJECTIVE: Evaluate factors associated with hypothermia and increased need of oxygen and/or ventilatory support during intra-hospital transport of neonatal intensive care patients. METHODS: Prospective study of

  4. Diseño e implementación de una aplicación móvil android para el seguimiento de rutas de transporte urbano en el municipio de Yopal

    Directory of Open Access Journals (Sweden)

    Policarpo Malabar Galindo P

    2017-11-01

    Full Text Available este documento presenta los resultados del desarrollo de una aplicación móvil Android para la visualización de las rutas de transporte urbano en la ciudad de Yopal, utilizando la ágil metodología XP que ofrece un marco adaptable a las condiciones del proyecto. El desarrollo de la aplicación se ha realizado con el entorno de desarrollo de Android Studio, Google Maps para Android, Firebase para iniciar sesión con la cuenta de Google y la base de datos. La solicitud está dirigida a los usuarios de la ciudad de Yopal, departamento de Casanare, que toman el servicio de transporte urbano, para facilitar la información correspondiente a las rutas de los paseos en minibús.

  5. RELACIÓN ENTRE EL TRANSPORTE Y LAS CARACTERÍSTICAS NUTRICIONALES DE LA CARNE PORCINA PARA CONSUMO HUMANO EN EL VALLE DE ABURRÁ (COLOMBIA

    Directory of Open Access Journals (Sweden)

    N. Uribe

    2017-01-01

    Full Text Available La carne de cerdo se considera fuente de alto valor nutritivo por su alto contenido de proteína; sin embargo, su transporte representa un eslabón crítico, por cuanto genera pérdidas económicas, cuando se producen alteraciones en el bienestar animal que reper - cuten en los parámetros nutricionales, disminuyen la capacidad de retención de agua y ocasionan pérdidas de proteína. El objetivo de este estudio fue relacionar las características de los transportes con las características nutricionales de la carne porcina destinada a consumo humano en el Valle de Aburrá (Antioquia, Colombia en 2017. Se visitaron tres plantas de sacrificio del Valle de Aburrá con muestreo probabilístico estratificado por planta y afijación igual, obteniendo información de 338 animales. Se analizaron los parámetros nutricionales de las muestras cárnicas, así como variables sociodemográficas, de infraestructura, bienestar animal y prácticas de conducción de los transportistas. Se realizaron pruebas de ji-cuadrado ( χ ² para variables cualitativas dicotómicas, regresión logística para variables cualitativas politómicas y U de Mann–Whitney para variables cuantitativas. Se encontró asociación entre varios de los parámetros indagados con valores p estadísticamente significativos ( p = 0,000; así, no tener suministro de agua permanente para los animales incrementa en 46,55 veces (IC 18,08 – 120,07 la po - sibilidad de presentar carnes nutricionalmente inadecuadas. Se concluye que factores como la falta de suministro de agua a los cerdos, el mal estado de pisos y separadores, la deficiente capacitación de los transportistas, la falta de supervisión a los animales, no tener el certificado técnico-mecánico y la velocidad promedio de 80 km/h, se asocian con la generación de productos cárnicos nutricionalmente inadecuados.

  6. TRASMAR 2: improved tele operated mobile robot for the radioactive material transport; TRASMAR 2: Robot movil teleoperado mejorado para el transporte de material radiactivo

    Energy Technology Data Exchange (ETDEWEB)

    Segovia de los Rios, A. [ININ, 52750 La Marquesa, Estado de Mexico (Mexico); Zamora S, C.A.; Garduno G, M. [Instituto Tecnologico de Toluca, 52140 Metepec, Estado de Mexico (Mexico)]. e-mail: asegovia@nuclear.inin.mx

    2007-07-01

    In the National Institute of Nuclear Research of Mexico (ININ), a new robot version for the radioactive material transport was developed trying to diminish the radiation quantity to which the ININ personnel is exposed taking it away by this way of the radioactive substance. The robot is operated by means of a remote control, for that which two data transmission modules by radiofrequency are used. As much the remote control as the vehicle control system were implemented with the help of micro controllers. Presently document the main characteristics of this mobile robot are explained, which is a more economic and functional version that it predecessor. (Author)

  7. Finite element modelling of fire situations in UF6 transport containers; Modelado por elementos finitos de situaciones de incendio en contenedores para el transporte de UF6

    Energy Technology Data Exchange (ETDEWEB)

    Basombrio, F G

    1997-12-31

    In this report we describe some runs made with the code FASES2. They concern different situations associated to fires originated by accidents in the transport of containers filled with UF6. Such situations have been inspired in cases taken from the current literature, and related to numerical modelling or experiments. We aim to consign the most relevant aspects of such runs, with the future purpose of comparing them with the predictions made with simpler lumped models. In such a way, it will be possible to calibrate the simple models with the results coming from detailed models. (author). 6 refs., 12 figs.

  8. CONDICIONES TÉCNICAS PARA LA EJECUCIÓN DE INFRAESTRUCTURAS DE MOVILIDAD Y TRANSPORTE EN BOGOTÁ

    Directory of Open Access Journals (Sweden)

    Hernán Antonio González-Urrego

    2014-01-01

    Full Text Available Background: Currently Colombia has a process of rapid economic growth, due to its attractive geopolitical situation and excellent potential for the exploitation of natural resources. But there is a serious shortage of infrastructures for mobility and transport in rural and urban areas, which directly affects to these economics process, worse if we consider that the mobility land nets connecting the country are really inefficient. In most of metropolitan areas the situation becomes critical as in Bogotá, a city on which have been done many studies of people transport networks that are not technically executables because they don’t respond totally to the complexity of the territory. Objective: This introductory text to others more specific by the same authors, contains the basic parameters sometimes overlooked in technical feasibility studies, in order to contribute with this contents as a reference’s consults to all the people (as well as future users that can be involved in the develop of studies for building infrastructure of mobility and transport with emphasis in Bogota, but knowing that some of its contents can be also a model for other cities. Methods: Through a comprehensive analysis based mainly on secondary information (aerial photographs, satellite images, site photographs, seismic microzonation, etc... and experiences elsewhere, were identified neuralgic sites in Bogotá with mobility problems and presence of existing rail corridor for possible future implementation of an Integrated Transport System, using different types of connection networks, considering the needs of Bogotá and its regional connection in the short (5-8 years, medium (5 to 10 years and long term (15- 30 years with a projection 30 years. Results: According to different variables that control constructive aspects of the city, such as the geotechnical complexity, management culture, resources, construction technology, among others, was achieved conceptually, to

  9. Processo de transporte de órgãos para transplante na Cidade de São Paulo

    OpenAIRE

    Adriana Roberta Lira; Elton Lima dos Reis; Marcus Vinícius de Oliveira Santos

    2016-01-01

    O trabalho da Polícia Militar do Estado de São Paulo, em favor da sociedade completa 185 anos de existência. É um trabalho amplo e digno. Uma parcela desse trabalho apoia-se no Grupamento Aéreo da Polícia Militar do Estado de São Paulo, guarnição direcionada especificamente à atividade de transportar órgãos para transplante. Nesse sentido, o presente artigo, objetiva avaliar essa atividade, baseando-se em pesquisa realizada junto às Instituições e profissionais responsáveis pela captação e o ...

  10. Diseño y optimización del sistema de renovación de la carga de un motor dual fuel para transporte pesado mediante sobrealimentación en doble etapa

    OpenAIRE

    SIRVENT SANJOSÉ, ROBERTO ANDRÉS

    2016-01-01

    El trabajo consiste en el diseño del sistema de admisión y escape de un motor dual-fuel para transporte pesado. Se deberá seleccionar la arquitectura adecuada para poder conseguir las condiciones de deseadas en el interior del cilindro (sistema de sobrealimentación, producción de EGR). Se deberá también seleccionar la estrategia adecuada para el control de cada uno de los elementos utilizados. Sirvent Sanjosé, RA. (2016). Diseño y optimización del sistema de renovación de la carga de un mo...

  11. Study of casks shielded with heavy metal to transport highly radioactive substances; Estudo de embalados com blindagem em metal pesado para transporte de substancias altamente radioativas

    Energy Technology Data Exchange (ETDEWEB)

    Lucchesi, R.F.; Hara, D.H.S.; Martinez, L.G.; Mucsi, C.S.; Rossi, J.L., E-mail: rflguimaraes@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2014-07-01

    Nowadays, Brazil relies on casks produced abroad for transportation in its territory of substances that are sources of high radioactivity, especially the Mo-99. The product of the radioactive decay of the Mo-99 is the Tc-99m, which is used in nuclear medicine for administration to humans in the form of injectable radioactive drugs for the image diagnosis of numerous pathologies. This paper aims to study the existing casks in order to propose materials for the construction of the core part as shielding against gamma radiation. To this purpose, the existing literature on the subject was studied, as well as evaluation of existing and available casks. The study was focused on the core of which is made of heavy metals, especially depleted uranium for shielding the emitted radiation. (author)

  12. Nuevas herramientas para la construcción de modelos de organización territorial en función del transporte

    Directory of Open Access Journals (Sweden)

    Cándida Gago García

    2002-01-01

    Full Text Available En estas líneas se señala la necesidad que sigue teniendo la Ciencia Geográfica de continuar planteando modelos para la explicación y síntesis de la organización espacial. Estos modelos pueden desarrollarse, hoy en día, con mayor rapidez y precisión gracias a nuevas tecnologías de información (Sistemas de Información Geográfica, programas de tratamiento estadístico y fuentes de información territorial (imágenes de satélite, cartografía digital, base de datos digitales, entre otras. Para argumentar estas ideas se valora la importancia explicativa que han tenido algunos modelos, fundamentalmente aquellos ligados a la Geografía de los transportes; luego se propone un estudio de caso a partir del cual se ha desarrollado un modelo de crecimiento de la Comunidad de Madrid en relación con sus carreteras radiales mediante el empleo de SIG, imágenes de satélite y otras aplicaciones informáticas.

  13. PROPOSTA DE MODELO FLEXÍVEL PARA APOIO À DECISÃO DE EXTERNALIZAÇÃO: UMA APLICAÇÃO EM LOGÍSTICA DE TRANSPORTE

    Directory of Open Access Journals (Sweden)

    Rosane de Fátima Andrioli

    2015-12-01

    Full Text Available Este estudo teve por objetivo desenvolver e testar um modelo adaptável de análise econômico-estratégico para apoio à decisão de externalização em logística de transporte. Para tanto, foi realizado em quatro etapas, iniciando-se com a revisão bibliográfica. Nas etapas seguintes desenvolve-se o modelo e o estudo de caso. Evidenciou-se o tipo de pesquisa metodológica como um estudo de caso aplicado de abordagem qualitativa/quantitativa, realizada a partir de múltiplas fontes de coleta de dados. Os atributos utilizados no estudo de caso e na aplicação do modelo – regularidade, confiabilidade, qualidade dos serviços, infraestrutura, custo – foram selecionados na literatura atinente e nas entrevistas com os gestores da organização, envolvidos com a decisão do processo de externalização. Pelos resultados obtidos, indica-se a externalização da frota com opção pelo fornecedor A. Desta forma, concluí-se que o modelo proposto pode ser um importante instrumento de apoio aos gestores na tomada de decisão quanto a questão da externalização.

  14. Aumento no uso de transporte motorizado privado no deslocamento das crianças para a escola na Região Metropolitana de São Paulo, Brasil, 1997-2012

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    Thiago Hérick de Sá

    2016-01-01

    Full Text Available Resumo: A Região Metropolitana de São Paulo, Brasil, apresentou, entre 1997 e 2007, tendência de aumento do uso transporte motorizado privado nos deslocamentos de crianças para a escola, com potenciais prejuízos à saúde. O objetivo deste estudo foi ampliar a análise de tal tendência para 2012 e discutir possíveis estratégias para aumentar a proporção de crianças que andam, pedalam e usam o transporte público. A análise dos dados da Pesquisa de Mobilidade de 2012 indica não apenas a continuidade, mas a aceleração no aumento do uso transporte motorizado privado em deslocamentos de crianças entre 6 e 11 anos para a escola. O efeito de iniciativas em andamento sobre essa tendência só será devidamente compreendido com o devido monitoramento dos deslocamentos cotidianos e a avaliação do impacto dessas ações sobre a saúde da população. Um pacote de políticas e programas voltados especificamente para a promoção e proteção da mobilidade a pé, de bicicleta ou por transporte público de crianças é imprescindível para garantir o deslocamento seguro, independente e ativo de crianças para a escola na Região Metropolitana de São Paulo.

  15. Avaliação do Efeito do Transporte no Desempenho de Embalagem Tipo Stand-up Pouch para Produtos Líquidos Evaluation of Transport Effect on the Performance of Stand-Up Pouch Packages for Liquid Products

    Directory of Open Access Journals (Sweden)

    Leda Coltro

    2002-01-01

    Full Text Available Este estudo foi desenvolvido com o objetivo de estimar o efeito do transporte rodoviário no desempenho de embalagem do tipo stand-up pouch tendo folha de alumínio (8µm na estrutura, para o acondicionamento de produtos líquidos. O stand-up pouch foi submetido ao ensaio de simulação de transporte seguindo os padrões adotados na norma ASTM D4728-95, durante 4 horas. A intensidade da vibração randômica e o tempo de ensaio representam uma distância percorrida de aproximadamente 2000km. Como ocorreu falha na estrutura de algumas unidades de embalagem devido a solicitação de vibração, foram feitas avaliações empregando-se microscopia ótica e microscopia eletrônica de varredura dos stand-up pouches antes e após a simulação de transporte a fim de elucidar a causa dos danos. As prováveis causas da falha observada na estrutura podem estar associadas aos seguintes fatores: a características da laminação da estrutura (tipo de material, força de adesão das camadas, etc.; b flexibilidade e características de elasticidade da folha de alumínio; c efeito crítico da solicitação mecânica da embalagem pelo uso da mesma com um produto líquido.The aim of this study was to evaluate the effect of the transport on the performance of stand-up pouch packaging having aluminum foil in the structure, employed for packing liquid products. The stand-up pouch was submitted to transport simulation tests following the standards adopted in the ASTM D4728-95, during 4 hours. The intensity of the random vibration and the test time represent a traveled distance of approximately 2000km. Evaluations of the stand-up pouches were performed before and after the transport simulation employing optical microscopy and scanning electron microscopy, in order to elucidate the cause of possible damages in the structure of the packaging by the vibration request. The probable causes of the observed ruptures in the structure can be associated to the following

  16. Transporte de enxofre para as raízes de soja em três solos de Minas Gerais Sulphur transport toward soybean roots in three soils from Minas Gerais State, Brazil

    Directory of Open Access Journals (Sweden)

    Davi José Silva

    2002-08-01

    Full Text Available Com o objetivo de avaliar a contribuição do fluxo em massa e da difusão no transporte de S para a superfície das raízes de soja, conduziu-se um ensaio em casa de vegetação, com amostras de três solos dos municípios de Viçosa, Paracatu e Lassance. Essas amostras apresentavam, respectivamente, 5,0, 1,2 e 1,4 mg dm-3 de S disponível, obtidos pelo extrator Ca(H2PO42, 500 mg L-1 de P em HOAc 2 mol L-1. O experimento correspondeu a um fatorial 3 x 5, sendo três solos e cinco doses de S (0, 20, 40, 80 e 160 mg dm-3, dispostos em blocos casualizados, com quatro repetições. A umidade, controlada pelo uso de um tensiômetro por vaso, foi mantida próximo a -10 kPa durante todo o ensaio. O fluxo em massa foi o principal mecanismo de transporte de S para a superfície das raízes da soja. Quando a concentração de S na solução do solo foi alta, esse mecanismo supriu quantidades de S superiores às absorvidas pela planta. A contribuição da difusão para o suprimento de S ocorreu apenas em baixa concentração desse nutriente na solução do solo.A greenhouse experiment was carried out to evaluate the mass flow and diffusion contributions on sulphur transport toward soybean roots in soil surface samples (0-20 cm of three soils collected in Viçosa, Paracatu and Lassance, Minas Gerais State, Brazil. Originally, the soil samples presented 5.0, 1.2 and 1.4 mg dm-3 of available S, respectively, obtained by extraction with a Ca(H2PO42 solution containing 500 mg L-1 of P in HOAc 2 mol L-1 solution. A 3x5 factorial layout was used with three soils and five S rates (0, 20, 40, 80 and 160 mg dm-3, disposed in a randomized complete block design, with four replications. Tensiometers controlled the soil water potential in each pot and the potential was maintained around -10 kPa. The mass flow was the main mechanism of S transport to soybean roots. At high concentration in soil solution, the quantities supplied by mass flow were higher than those

  17. Evaluation of the influence of water and oil derivatives absorption on PVC pipes; Avaliacao da influencia da absorcao de agua e de derivados de petroleo em tubulacoes de PVC

    Energy Technology Data Exchange (ETDEWEB)

    Carpio, D.C.F. del; D' Almeida, J.R.M., E-mail: dalmeida@puc-rio.b [Pontificia Univ. Catolica do Rio de Janeiro (PUC-Rio), RJ (Brazil). Dept. de Engenharia de Materiais

    2010-07-01

    PVC is the only polymer of large consume that is not totally obtained from petroleum, since it contains 57% of chlorine. As chlorine containing materials are resistant to bacteria rich environments, such as buried pipes, PVC is being used for fluid transportation, principally water, but it can also be considered as an alternative material for the transportation of other fluids. This work analyzes the aging behavior of PVC exposed to water, ethanol and diesel oil, using TGA, DSC, FT-IR and DR-X techniques. The results showed that the chemical structure of PVC is not affected by exposure to water and ethanol. For these fluids a dipolar interaction could be occurring, increasing at the beginning of the absorption process, the polymer thermal stability. The diesel oil caused plasticization, with reduction of the Tg since the beginning of the aging process. (author)

  18. Detection of leaks for radioactive tracer in marine duct for transport of liquefied petroleum gas; Deteccion de fugas por radiotrazado en ducto marino para transporte de gas LP

    Energy Technology Data Exchange (ETDEWEB)

    Robles P, E. F.; Benitez S, J. A.; Torre O, J. de la; Cruz S, E. de la; Molina, G.; Hernandez C, J. E.; Flores M, J. [ININ, 52750 La Marquesa, Estado de Mexico (Mexico)]. e mail: efrp@nuclear.inin.mx

    2008-07-01

    In this work the aplication in the oil industry of the technique of radioactive tracer appears for the detection of internal leaks in a submarine duct that gives service as it lines of receipt of liquefied petroleum gas (Gas LP) located in the Mexican coast of the Pacific Ocean. This system of marine pipe is a consistent arrangement of a duct interior of 0.254 m (10 inches) of nominal diameter (N.D.) of steel to the carbon for cryogenic service ASTM A 333, Grade 6, schedule 30, isolated thermally with foam of polyurethane and shielding in a steel tube to the carbon ASTM A 53 Grade A, of 0.508 m (20 inches) N. D., schedule 20, which is recovered by a ballast encircling of concrete of 0.0508 m (2 inches) of thickness, reinforced with mesh metallic, and that 1315 m runs on the marine stratum to a maximum depth of 12.5 m. For the detection of leaks by radiotracer it was used as tracer the radioactive isotope La-140 produced in the TRIGA Mark III Experimental Reactor of the National Institute of Nuclear Research, starting from stable lanthanum nitrate (La(NO{sub 3}){sub 3} 6H{sub 2}O), with an activity of 100 mCi, the one which after having been made logistics tasks, given very particular sea maneuvers and due to the conditions of the work place, in the interior tube was injected in two subsequent stages to cover both duct senses; from earth and from the marine end respectively, there being used fresh water like transport way and submergible sodium iodide detectors (NaI) for the rake of the La-140. At the end of the journeys of pursuit of the radiotracer, it was determine the presence of three leaks points located in the break area of the marine surf to 360 m, 450 m and 495 m of distance of a reference point located in the beach section named Trap of Devils. (Author)

  19. La causalidad entre el crecimiento economico y la expansion del transporte aereo: un analisis empirico para Chile

    Directory of Open Access Journals (Sweden)

    Martin Alberto Rodriguez-Brindis

    2015-06-01

    Full Text Available Este trabajo analiza los efectos a largo plazo entre la demanda de transporte aéreo y el crecimiento económico en Chile. Utilizando datos trimestrales de 1986 (T1 a 2014 (T29, el estudio investiga la posible relación de causalidad entre el pib real y el número de pasajeros aéreos que llegan y salen de los aeropuertos chilenos. Por medio de la cointegración de Johansen, se muestra la existencia de un vector de cointegración en el que las correspondientes elasticidades son positivas. El estudio muestra que la relación de causalidad es positiva y bidireccional. A su vez, el análisis de impulso-respuesta, muestra que un incremento en la magnitud del movimiento de pasajeros produce un efecto positivo en el crecimiento económico en el país.

  20. Work ability and stress in a bus transportation company in Belo Horizonte, Brazil Avaliação da capacidade para o trabalho e estresse em uma empresa de transporte coletivo de Belo Horizonte, Brasil

    Directory of Open Access Journals (Sweden)

    Rosana Ferreira Sampaio

    2009-02-01

    Full Text Available Demographic, occupational and psychosocial characteristics affect the health and occupational performance of workers. The objective of the present study was to elaborate a profile of the work ability and factors that affect it in a bus transportation company in Belo Horizonte, Brazil. The instruments used included a socio-demographic and occupational questionnaire, the Work Ability Index and the Job Stress Scale. Demographic information revealed that 85.7% of the 126 employees of the company were active workers, 98% were males, with an average of 39 years of age (SD= 10 and 79 months working in the company (SD= 68; more than half reported having a low schooling level. In terms of personal habits, 88% were exposed to one or more risk factors, especially a sedentary lifestyle. The average strain value (as a consequence of stress was 0.78 (SD= 0.2 and 75.3% reported episodes of violence at the workplace. The work ability was good to excellent among 89% of the workers. Results from the logistic regression analysis showed that strain was the only significant variable in relation to the Work Ability Index, (estimated odds ratio of 0.02. The results suggest that psychosocial factors presented the greatest association with work ability, and preventive and/or corrective measures should be implemented.Características demográficas, ocupacionais e psicossociais afetam a saúde e o desempenho dos trabalhadores. O objetivo deste estudo foi elaborar um perfil da capacidade para o trabalho e fatores que a afetam em uma empresa de transporte coletivo de Belo Horizonte, Brasil. Os instrumentos utilizados foram o Índice de Capacidade para o Trabalho, a Job Stress Scale e um questionário sociodemográfico e ocupacional. Dos 126 trabalhadores, 14,3% estavam aposentados ou afastados, todos por doença. Entre os ativos, a maioria era do sexo masculino (98%, com idade média de 39 anos (DP=10, baixa escolaridade (acima de 50% e tempo médio na empresa de 79 meses

  1. DISPONIBILIDAD Y ACCESIBILIDAD EN EL TRANSPORTE PÚBLICO MADRILEÑO COMO GARANTÍA DE EQUIDAD SOCIAL ANTE LA APLICACIÓN DE UN PEAJE URBANO PARA LA CIUDAD DE MADRID

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    Muñoz Miguel, Juan Pedro

    2014-01-01

    Full Text Available Un transporte público urbano suficientemente accesible constituye uno de los principales condicionantes para la implantación de peajes urbanos, lo que permite garantizar, además de un adecuado nivel de equidad social en la movilidad, un elevado grado de aceptación social. El presente artículo sobre la basede una encuesta poblacional para la ciudad de Madrid y su entorno ofrece una valoración sobre la actual accesibilidad que presenta el transporte madrileño como garantía de equidad social en la movilidad bajo una situación de peaje urbano, donde los resultados muestran que el sistema permitiría garantizar un nivel de equidad en la movilidad muy significativo y relevante para los desplazamientos interiores y radiales respectivamente, con alcance muy reducido para los desplazamientos transversales, si bien el empleo de determinadas estrategias puede constituir un factor crucial que favorezca la equidad social deseable para el peaje urbano.

  2. Elementos para la integración de sistemas de gestión y su importancia en la cadena productiva del transporte de carga terrestre en Colombia

    Directory of Open Access Journals (Sweden)

    José Stalin Rojas Amaya

    2014-12-01

    Full Text Available The integration of BASC management systems and ISO and BASC is able to strengthen the management of the supply chain in road freight companies, however there have been delayed deliveries and loss of goods. This situation raises the question of whether these problems are the result of the integration of management system or due to other causes. The article explores the literature on integration of management systems and proposes elements from the field of management to control these problems. La integración de sistemas de gestión BASC e ISO permite fortalecer la gestión de la cadena de suministro en las empresas de transporte terrestre; sin embargo, se han presentado entregas a destiempo y pérdida de mercancías. Esta situación genera la pregunta de si estas no conformidades son producto de la integración de sistema de gestión u obedecen a otras causas. El artículo explora la literatura sobre integración de sistemas de gestión y propone elementos desde el campo de la gestión para controlar estas no conformidades.

  3. Cálculo de estructuras para semirremolques de pasajeros de grandes dimensiones // Calculation of structures for semi - trailers of large dimensions using in passengers transportation

    Directory of Open Access Journals (Sweden)

    L Otero Pereiro

    1998-01-01

    Full Text Available El Método de Elementos Finitos desarrollado hasta la actualidad es un poderoso sistema de cálculo computarizado empleadoen el análisis de tensiones y deformaciones de sólidos y estructuras y mucha literatura ha sido publicada sobre él como métodode cálculo,La necesidad de resolver los problemas de la transportación de pasajeros, principalmente en Ciudad Habana, en las difícilescondiciones del período especial, condujo al desarrollo de un semirremolque con las características necesarias para cumplir estafunción, el cual por sus atributos constituye el único en su género para esta finalidad.Es, por tanto, la primera vez que en nuestro país se realiza el cálculo de una estructura reticulada integral autoportante desemejante magnitud, con resultados concretos satisfactorios.Se aborda la creación de un modelo físico-matemático que simula la estructura real, acondicionado a las limitaciones delprograma de cálculo, brindando un comportamiento similar en los esfuerzos y deformaciones que se producen, con un estudiode las diferentes variantes de resultados.En el trabajo se obtienen algunos resultados sobre las posibles consecuencias que puede acarrear la realización del cálculo de laestructura completa o separándola por secciones, siendo necesario el establecimiento de una metódica para la definición deaquellas secciones que pueden ser analizadas por separado, así como el orden de importancia de este análisis.Se realizó la Determinación experimental del coeficiente de carga dinámica, así como el Establecimiento del modelo físicomatemáticoadecuado para el cálculo de la estructura del semirremolque de pasajeros aplicando el Método de los ElementosFinitos.Efectuar ensayos a carga estática del bastidor para corroborar la validez del modelo físico-matemático de la estructura.Proponer una solución técnica dentro de las posibilidades tecnológicas de la empresa constructora para evitar la rotura de laestructura del equipo

  4. Comparação entre dois meios de coleta e transporte para estudo da microbiota conjuntival de indivíduos normais Comparison of two transportation media for study of normal individual conjunctival microbiota

    Directory of Open Access Journals (Sweden)

    Daniel Cruz Nogueira

    2007-12-01

    Full Text Available OBJETIVO: Comparar o perfil microbiológico da microbiota de pessoas sadias, obtidas do esfregaço conjuntival, utilizando zaragatoa seca transportada no meio de Stuart e zaragatoa úmida transportada no tubo de ensaio vedado com algodão. MÉTODOS: Trata-se de estudo prospectivo, com amostras selecionadas aleatoriamente, realizado no Departamento de Oftalmologia e Patologia da Santa Casa de Misericórdia de São Paulo, no mês de agosto de 2006. Foram estudados 80 olhos normais de 40 indivíduos. No olho direito de cada paciente, foi realizada a coleta de material com a zaragatoa seca, armazenando-a no meio de transporte de Stuart, no qual todo o material microbiológico obtido fica imerso no meio e o tubo hermeticamente fechado. No olho esquerdo, o material conjuntival foi colhido com a extremidade de algodão da zaragatoa umedecida em solução salina a 0,9%, e armazenando-a no tubo de ensaio seco e estéril vedado com algodão. As amostras foram analisadas no prazo máximo de 2 horas após a coleta do material. RESULTADOS: Das 40 amostras coletadas com a zaragatoa úmida transportadas em tubo seco, foram identificadas bactérias em 10 (25%. Das 40 amostras coletadas com zaragatoa seca transportada em meio de Stuart, foram identificadas bactérias em 12 (30%. CONCLUSÃO: Os resultados do perfil microbiológico da microbiota normal conjuntival utilizando o meio de transporte da zaragatoa seca em meio de Stuart mostraram-se estatisticamente semelhantes (p= 0,85 ao comparar com o meio utilizando a zaragatoa úmida em tubo seco para semeaduras realizadas em até 2 horas após a coleta de material conjuntival.PURPOSE: To compare the microbiological profile of normal microbiota of healthy people obtained from conjunctival smear using dry swab in Stuart's transport medium and wet swab transported in test tube sealed with cotton. METHODS: A prospective study with random samples, performed at the Departments of Ophthalmology and Pathology of Santa

  5. Equações e programa computacional para cálculo do transporte de solutos do solo Equations and computer program for calculating the solute transport in soil

    Directory of Open Access Journals (Sweden)

    João C. F. Borges Júnior

    2006-09-01

    Full Text Available Em função deste trabalho, objetivou-se desenvolver e testar um programa computacional para calcular os parâmetros das equações de transporte de solutos no solo, com base no ajustamento de modelos teóricos a dados observados, e executar simulações para a variação espacial e temporal da concentração e do balanço de massa de solutos no perfil do solo. Utilizou-se o método dos mínimos quadrados (Levenberg-Marquardt para obtenção dos estimadores dos parâmetros coeficiente dispersivo-difusivo e fator de retardamento. O programa desenvolvido, denominado Disp, possui interface gráfica que torna simples o seu uso quanto aos procedimentos de entrada de dados, execução dos cálculos e acesso aos resultados. Nos formulários de resultados, gráficos e tabelas relacionados às curvas de efluente podem ser gerados além da possibilidade de se executar simulações quanto à variação espacial e temporal da concentração e do balanço de massa de solutos no perfil do solo. Testes comparativos entre o Disp e o programa CXTFIT, relativos aos cálculos dos parâmetros número de Peclet e fator de retardamento, indicaram equivalência entre os dois programas, porém a interface gráfica do Disp o torna de uso mais simples em relação ao CXTFIT.This study aimed to develop and to test a computer program for calculating the parameters of soil solute transport equations, based on adjustment of theoretical models to observed data, as well as to perform simulations for the space and temporary variations of the concentration and balance of the solute mass in the soil profile. The least-squares method (Levenberg-Marquardt was used to obtain the estimators of the diffusion-dispersion coefficient and retardation factor parameters. The developed program, so-called DISP, is provided with a graphic interface that makes possible its use in procedures for data input, accomplishment of calculations and access to results. In the result forms, a number of

  6. Metodología para el diseño e implementación de un sistema de gestión de costos de la calidad en empresas de transporte

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    Delmis de la Caridad Leyva-Domínguez

    2014-01-01

    Full Text Available El presente artículo se basa en el diseño e implementación de una metodología que constituye un conjunto de etapas, fases y pasos que servirán de guía para facilitar la implementación del Sistema de Gestión de Costo de Calidad en empresas de transporte. Se explica la necesidad de que el sistema de medición incluya la existencia de indicadores no financieros para analizar los resultados del sistema de gestión de la calidad, en el mismo se abordan definiciones sobre los requerimientos y especificaciones a emplear, partiendo del diagnostico económico, la identificación y análisis de los procesos, clasificando las actividades que generan costo de calidad y confeccionándose el clasificador de cuentas memorándum para los indicadores no financieros.

  7. Programa para la implementación del sistema de gestión de riesgos laborales con la Norma OHSAS 18000, en el taller de láminas y estructuras del Comando Aéreo de Transporte Militar

    Directory of Open Access Journals (Sweden)

    Leonardo Garzón Bernal

    2006-01-01

    Full Text Available En el comando Aéreo de Transporte Militar no existe una organización ágil de los procesos estandarizados, ya que se han presentado setenta incidentes laborales en promedio por año con lesiones para el personal en un 28%  que corresponden a los operarios del taller, de acuerdo con las estadísticas del departamento de seguridad.

  8. Comportamento pós-colheita de mamões Formosa 'Tainung 01' acondicionados em diferentes embalagens para o transporte Post harvest behavior of Papaya Formosa 'Tainung 01' conditioned in different packings for transportation

    Directory of Open Access Journals (Sweden)

    Carlos Eduardo Magalhães dos Santos

    2008-06-01

    Full Text Available O objetivo deste trabalho foi avaliar a comportamento pós-colheita de mamões do grupo Formosa híbrido 'Tainung 01', submetidos a diferentes formas de acondicionamento para o transporte rodoviário, desde o local da produção até o mercado atacadista. Foram utilizados mamões colhidos nos estádios 1 (até 10% da área superficial da casca com cor amarela e 3 (25 a 40% da área superficial da casca com cor amarela, acondicionados sob diferentes formas: a granel, em caixas de madeira, em caixas de papelão ondulado e em caixas plásticas forradas com plástico-bolha (controle, e transportados a Viçosa-MG, distante 750 km da produção, onde os frutos foram avaliados. Após seleção e novo acondicionamento, os frutos foram armazenamento a 24,5 ± 2ºC por 8 dias, com amostragens a cada 2 dias, para avaliação de índice de cor da casca, perda de massa fresca, taxa respiratória, firmeza da polpa e o índice de injúrias mecânicas. Os resultados evidenciaram os efeitos depreciativos das injúrias mecânicas na qualidade final do mamão, sendo que o transporte de frutos a granel, em relação ao controle, promoveu alterações na qualidade pós-colheita dos frutos, com aumento do índice de cor da casca, redução na firmeza da polpa, elevada perda de massa fresca e taxa respiratória, e maiores percentagens de área da casca injuriada, nos dois estádios de coloração estudados (1,14 e 1,21%, respectivamente. As caixas de papelão ondulado e caixas plásticas forradas com plástico-bolha mantiveram baixa a percentagem de área injuriada em relação aos transportados a granel, constituindo-se em alternativas promissoras na manutenção da qualidade pós-colheita de mamão Formosa destinado ao mercado interno.The aim of this study was to evaluate the post harvest behavior of papaya from the hybrid group Formosa 'TAINUNG 01' stored in different packages for road transportation, from the farm to the wholesale market. It was used papaya picked

  9. Public transport

    OpenAIRE

    Lethbridge, Jane

    2008-01-01

    Public transport plays an essential role in enabling people from low income and other disadvantaged groups to access employment and services. It also contributes to the development of social networks and social capital, by helping people to visit friends and relatives and take part in community and other social activities. Public policy makers have begun to recognise that adequate public transport provision can play an important role in reducing social exclusion. [Taken from introductory para...

  10. Atomic Transport Problems of Interest in Nuclear Systems; Problemes de Transport Atomique Presentant un Interet dans les Systemes Nucleaires; Problemy perenosa atomov, predstavlyayushchie interes v yadernykh sistemakh; Problemas de Transporte Atomico de Interes para la Ingenieria Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Lundy, T. S.; Winslow, F. R. [Oak Ridge National Laboratory, TN (United States)

    1966-02-15

    sur la diffusion dans un metal. Leurs resultats sont en bon accord avec les calculs theoriques fondes sur un modele de 1)annihilation de l'excedent de defauts ponctuels (lacunes et interstices) par trois mecanismes, savoir la migration vers des puits fixes dont la distribution est homogene tels que les dislocations, la migration vers une surface libre et la recombinaison de defauts. (author) [Spanish] Se analizan en la memoria varios problemas encontrados al aplicar los datos basicos sobre difusion a sistemas de interes practico para la ingenierfa nuclear. Estos problemas se refieren a experimentos de difusion isotermica, difusion por gradiente termico y efectos de la radiacion sobre los procesos de difusion. La mayor parte de la informacion fidedigna sobre la difusion en solidos proviene de casos donde no existe, en esencia, gradiente alguno de concentracion de las especies que se difunden. Los sistemas que interesan a los ingenieros nucleares, en cambio, presentan casi invariablemente gradientes de concentracion. Asf, pues, para evaluarlos coeficientes adecuados es necesario contar con un conocimiento practico de la relacion existente entre los coeficientes de autodifusiOn y de difusion quimica. Ademas, es preciso conocer los coeficientes de actividad termodinamica como funciones de la composicion. Recientemente se ha demostrado sin lugar a dudas que el uso indiscriminado de una expresion del tipo de la de Arrhenius para describir la manera en que los datos de difusion dependen de la temperatura, puede introducir graves errores en el calculo de los coeficientes de difusion. Se analizan en la memoria las consecuencias de ese hecho, haciendo especial hincapie en los sistemas cubicos centrados en el cuerpo/ del tipo refractario. Los autores han estudiado teorica y experimentalmente el efecto de un gradiente termico sobre la redistribucion de impurezas sustitutivas en un metal. Ese trabajo ha contribuido a un mejor conocimiento de la importancia de este efecto en los

  11. Determinación de propiedades físicas y aerodinámicas del mineral laterítico para fines de transporte neumático

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    Ekaterina Golubova

    2003-03-01

    Full Text Available Los sistemas de transporte neumático de materiales sólidos son ampliamente utilizados en la industria niquelera con tecnología carbonato amoniacal (CARON, para el traslado del mineral laterítico desde la planta de preparación hasta los hornos de reducción; sin embargo, estos sistemas tienen en contra un elevado consumo energético que llega a alcanzar los 9,5 MW/h. Para modelar matemáticamente y lograr mayor eficiencia en los sistemas de transporte neumático, se determinaron las propiedades físicas y aerodinámicas que mayor influencia tienen en el transporte. Se estableció, a partir de la técnica experimental empleada, la correlación de la velocidad de flotación y el coeficiente de resistencia en función del diámetro y el contenido de humedad de las partículas. Se obtuvo, además, la densidad de las partículas, densidad aparente y composición granulométrica del material. Estos parámetros se determinaron tomando en cuenta su importancia en la modelación matemática del proceso, y en la evaluación, cálculo y diseño de los sistemas de transporte neumático. Experimentalmente se confirmó que la velocidad de flotación alcanza un valor máximo de 5,42 m/s para el mayor diámetro de partícula presente en las muestras, mientras que la densidad aparente toma un valor de 1,0683 g/cm3, y la densidad de las partículas, de 3,0269 g/cm3.

  12. Origin, transport and fate of the dissolved organic matter produced in the watershed of the Paraíba do Sul River, Brazil.

    Science.gov (United States)

    Marques da Silva Junior, Jomar; Soares Gonçalves Serafim, Tassiana; Gomes de Almeida, Marcelo; Dittmar, Thorsten; de Rezende, Carlos Eduardo

    2015-04-01

    The Paraíba do Sul River (PSR) is an important river from Southeastern Brazil that flows through the states of São Paulo, Minas Gerais and Rio de Janeiro. The PSR is responsible for the water supply of over 14 million of the habitants. Due the human occupation and anthropic pressure, only 8% of it is original forest cover remains in the form of small fragmented patches. The remaining of the basin is mostly covered by grasses, such as pasture and sugar cane. Isotopic studies allows the monitoring of ecosystem changes and promotes specific links between ecology, land use and biogeochemical processes. We investigated the isotopic composition of the dissolved organic matter (DOM) in PSR. Our objective was to identify how extensive land use changes, from forest (C3 Plants) to pasture and sugar cane (C4 Plants), have affected river biogeochemistry of organic matter transported by PSR. Water samples were collected at 24 sites along the main channel of the PSR, 14 sites samples at the tributaries and 21 sites samples in the estuarine and marine environmental until 35km of the coast. Sampling was performed in the wet season of the 2013 and the dry season of the 2013. The fluvial and estuarine samples were processed with conventional filtration and the marine samples were processed with the cross-flow filtration. The dissolved organic matter (DOM) was isolated by solid-phase extraction (SPE) with the PPL cartridges (Styrene divinyl benzene polymer). Isotope measurements, organic carbon and nitrogen concentration were performed with a isotope-ratio mass spectrometry (Thermo Finningan). The 13C and the 15N values ranged from -20.0‰ and -29.0‰, and from -0.80 to 4.59 respectively, while the (C/N)a ratio varied between 8 and 41. The 13C were depleted in 13C at the river samples from the wet season, and in the estuary and marine areas as well. The 13C average values observed during the wet season in the PSR and in the estuarine samples are close to those

  13. Simulación de ruido de tránsito automotor como herramienta para el rediseño de rutas de transporte público colectivo en el municipio de Medellín Simulation of road traffic noise as a tool for redesigning public transport routes in the municipality of Medellín

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    Carlos Alberto Echeverri

    2011-01-01

    Full Text Available Este artículo presenta parte de los resultados del estudio "Metodología de rediseño de rutas de transporte público colectivo complementarias al sistema integrado de transporte en el Valle de Aburrá", realizado y financiado por las universidades de Medellín y San Buenaventura. Se enfoca en la simulación del ruido de tránsito automotor como una herramienta de análisis para la toma de decisiones en la conversión de algunas rutas radiales de transporte colectivo público a rutas diametrales o de flujo de cuenca a cuenca en la ciudad de Medellín. Se elaboró un mapa de ruido de las vías en un sector seleccionado del centro de la ciudad, y se aplicó software de predicción de ruido ambiental para obtener los niveles de contaminación acústica existente y pronosticado con la implementación del rediseño de rutas de transporte público.This article presents part of the study results "methodology to redesign public transport complementary routes to integrated transport system in the Aburrá Valley" held and funded by the Universities of Medellin and San Buenaventura. It focuses on the simulation of road traffic noise as a tool of analysis for decision making in the conversion of some radial routes of public bus transportation to transverse routes or migration to other basins in the city of Medellin. Noise maps for streets in the downtown have been made by application of software for prediction of noise environmental for evaluating existing noise levels and for predicted ones in case of the implementation of the study for redesign public transport routes.

  14. Análise de modelo para projeto e desenvolvimento de serviços: uma pesquisa-ação em uma empresa de transporte rodoviário de passageiros Analysis of a service project and a development model: an action-research in a road passengers transport company

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    Vanessa Cristhina Gatto Chimendes

    2008-12-01

    Full Text Available O objetivo deste trabalho é analisar a implantação de um modelo de referência para o projeto e desenvolvimento de serviços em uma empresa de transporte rodoviário de passageiros. O intuito principal é minimizar três problemas relativos ao processo de desenvolvimento de serviços, pela ausência de: uma abordagem sistemática; documentos e registros que assegurem o controle do histórico de criação e melhorias para os serviços; testes documentados para verificação e validação do serviço desenvolvido. O modelo de referência foi escolhido por meio da análise de variância multivariada (Manova e a pesquisa empregou a estratégia da pesquisa-ação. O objeto de estudo foi o desenvolvimento de um serviço de bilhetagem eletrônica para uma empresa de transporte rodoviário. A pesquisa proporcionou recomendações para o aperfeiçoamento do modelo de referência e para a implantação de um processo sistemático de desenvolvimento de serviços para a empresa.The aim of this work is to analyze the implementation of a reference model for the project and development of services in a road passenger Transport Company. The main goals were to minimize three problems related to services development process: the absence of systematic approach, the absence of documents and records that assure the control of the services development description, and the absence of tests documentation for the verification and validation of the developed service. The reference model was chosen by using multivariate analysis of variance and the action-research strategy. A smart card payment system service development for the road passengers' transport was the object of study. The research provided recommendations of improvements for the reference model and for the implementation of a systematic service development process in the company.

  15. Fósforo reativo: Arraste superficial sob chuvas simuladas para diferentes coberturas vegetais Reactive phosphorus: Surface transport under simulated rainfall for different vegetation cover

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    Luciano Gebler

    2012-01-01

    Full Text Available O fósforo é um elemento químico chave para a qualidade da água, agindo principalmente como gatilho desencadeador das florações algais. A principal fonte de fósforo nas pequenas bacias rurais advém da agricultura feita nas encostas das bacias, podendo chegar de várias formas ao corpo d’água, porém as formas mais impactantes são o fósforo reativo total e o dissolvido. A forma dissolvida é a que apresenta maiores riscos pois pode percorrer distâncias comparativamente maiores do que o fósforo reativo nos sedimentos em suspensão que podem acabar depositados ao longo do caminho. Portanto, este trabalho visa avaliar se diferentes coberturas do solo por culturas anuais podem interferir no arraste destas formas de fósforo, afetando o risco da degradação dos recursos hídricos das pequenas bacias rurais. Apesar de não ter havido diferença significativa entre os tratamentos, verificou-se sazonalidade ao longo do experimento representando uma estação de cultivo. Isto significa que houve variação do nível de risco, uma vez que, no terço inicial das primeiras chuvas, o risco de arraste de fósforo na enxurrada foi mais elevado em relação a períodos chuvosos mais distantes da época de plantio/fertilização, tornando-se possível avaliar o risco à bacia de forma sazonal e não anual.Phosphorus is a chemical element considered key to water quality, mainly acting as a trigger of algal blooms. The main source of phosphorus in small rural basins is agriculture practiced in the slopes of the basins. This phosphorus can come in various forms to the water body, but the most striking ones are the total and dissolved reactive phosphorus. The dissolved form has higher risks, because it can cover distances comparatively larger than the reactive phosphorus in suspension which can be deposited along the path. This study sought to determine if different coverage of annual crops can interfere in the transport of these forms of phosphorus

  16. Evaluación de procedimientos para delimitar áreas de servicio de líneas de transporte urbano con sistemas de información geográfica

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    Antonio Moreno

    2003-01-01

    Full Text Available El presente trabajo aborda la evaluación de varios procedimientos para delimitar áreas de servicio del transporte urbano y estimar la población servida. A tal fin, se utilizan datos de un caso de estudio local y se recurre a un sistema de información geográfica (SIG. Con la adopción de dos diferentes formas de geo-referenciación de la demanda y de medición de las distancias, las distintas aproximaciones ensayadas ponen en evidencia resultados dispares y errores, los cuales permiten valorar las ventajas y limitaciones de cada una de ellas. Cabe esperar que las conclusiones alcanzadas contribuyan a elevar la exactitud de los análisis orientados a la planificación y toma de decisiones sobre el transporte público urbano.

  17. Modelo de simulação para o Sistema de Corte, Carregamento e Transporte de cana-de-açúcar: um estudo de caso no Estado do Rio de Janeiro

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    João José de Assis Rangel

    2010-05-01

    Full Text Available Neste trabalho foi desenvolvido um modelo de simulação para o Sistema de Corte, Carregamento e Transporte da cana-de-açúcar (conhecido como CCT das frentes de corte até uma usina localizada no norte do Estado do Rio de Janeiro. O objetivo do modelo foi analisar parâmetros do sistema, a partir do carregamento de cana-de-açúcar, sendo estes influenciados por operações de descarregamento na usina. Foi avaliado, então, o impacto do tempo de descarregamento da cana na usina e as suas implicações no sistema de corte, carregamento e transporte, considerando diferentes cenários.

  18. A precariedade do transporte rodoviário brasileiro para o escoamento da produção de soja do Centro-Oeste: situação e perspectivas

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    Vivian Helena Capacle Correa

    2010-06-01

    Full Text Available O Centro-Oeste do Brasil se destaca como um pólo produtor de soja. Pela crise fiscal do Estado, a partir dos anos 80, a malha rodoviária brasileira perde investimentos públicos para sua ampliação, conservação e restauração, refletindo na competitividade internacional da oleaginosa dos cerrados. Isso porque o principal modal utilizado para o escoamento da produção do grão aos portos das regiões Sul e Sudeste é o rodoviário, com destaque para as rodovias BR 163 e 364. Por conta da inadequação desse modal às características do produto e às longas distâncias percorridas, aliada ao estado precário de conservação da malha rodoviária do País, 25% da receita de vendas da produção de soja está comprometida com os custos internos de transportes. Neste trabalho, apontam-se perspectivas e possíveis soluções à reversão desse cenário, via concessões rodoviárias e Parcerias Público-Privadas (PPP. Analisa-se o uso de diferentes modais para o escoamento da soja do Centro-Oeste, e conclui-se que os hidroviários e ferroviários são os mais eficientes, em razão da eficiência energética e da maior produtividade à movimentação de cargas de densidade mais elevadas por distâncias maiores - o que conferiria custos menores de circulação.The Center-Western of Brazil is known to be a soy production center. At the beginning of the 80's, because of a governmental fiscal crises, the Brazilian road infrastructure and conservation lost its investment, which reflected on the soy international competition. The main transportation used to deliver this product to the ports at the South and South-Eastern regions is the roads, highlighting the BR 163 and 364 road's. Due to the inadequacy of the roads to the characteristics of this product, the long distances that have to be filled and also the bad conservation state of the Brazilian roads, 25% of this products sales are already accounted for internal transportation costs. There are a

  19. Fatores associados à hipotermia durante o transporte intra-hospitalar em pacientes internados em Unidade de Terapia Intensiva Neonatal Pequeño para la edad gestacional: repercusión en las habilidades motoras finas Factors associated with hypothermia during intra-hospital transport in patients assisted in a Neonatal Intensive Care Unit

    Directory of Open Access Journals (Sweden)

    Anna Luiza P. Vieira

    2011-03-01

    Full Text Available OBJETIVO: Determinar a frequência e os fatores associados à ocorrência de hipotermia em transportes intra-hospitalares de pacientes internados em uma unidade neonatal de cuidados intensivos. MÉTODOS: Estudo transversal aninhado em uma coorte prospectiva de crianças submetidas a transportes intra-hospitalares realizados por uma equipe treinada de janeiro de 1997 a dezembro de 2008 na unidade de cuidados intensivos de um hospital público universitário. Foram excluídos os transportes de pacientes com mais de um ano e/ou com peso na data do transporte superior a 10kg. Os fatores associados à hipotermia durante o transporte foram estudados por regressão logística. RESULTADOS: Dos 1.197 transportes realizados no período do estudo, 1.191 (99,5% atenderam aos critérios de inclusão. As doenças de base das 640 crianças estudadas (idade gestacional: 35,0±3,8 semanas; peso ao nascer: 2341±888g foram: malformações únicas ou múltiplas (71,0%, infecções (7,7%, hemorragia peri/intraventricular (5,5%, desconforto respiratório (4,0% e outros (11,8%. Os pacientes foram transportados para realização de cirurgias (22,6%, ressonância magnética (10,6%, tomografia (20,9%, exames contrastados (18,2% e outros procedimentos (27,7%. A hipotermia ocorreu em 182 (15,3% transportes e se associou ao (OR; IC95%: peso ao transporte OBJETIVO: Determinar la frecuencia y los factores asociados a la ocurrencia de hipotermia en transportes intrahospitalarios de pacientes internados en una unidad neonatal de cuidados intensivos. MÉTODO: Estudio transversal anidado en una cohorte prospectiva de niños sometidos a transportes intrahospitalarios realizados por un equipo entrenado de ene/1997 a dic/2008 en la unidad de cuidados intensivos de un hospital público universitario. Se excluyeron los transportes de pacientes con más de un año de edad y con peso en la fecha del transporte superior a 10kg. Los factores asociados a la hipotermia durante el

  20. Activos y estructuras de oportunidades de movilidad: Una propuesta analítica para el estudio de la accesibilidad por transporte público, el bienestar y la equidad

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    Diego Hernández

    2012-09-01

    Full Text Available Uno de los desafíos actuales para los estudios sobre movilidad y transporte en América Latina es adoptar un enfoque multidimensional de la movilidad que trascienda la noción más estrecha de desplazamiento o viaje y que, a la vez, permita integrar este tema a la discusión más general acerca del efecto de la movilidad sobre la pobreza y la exclusión social. Este artículo aborda el desafío y propone un marco analítico que recoja la -aún incipiente en nuestra región- experiencia teórico-empírica sobre estos fenómenos. Luego de revisar la literatura y argumentar a favor de la adopción de diversos postulados, se propone el enfoque de activos y estructuras de oportunidades para el estudio de la accesibilidad. Esta es concebida como el grado de ajuste entre las estructuras de oportunidades de movilidad, y los recursos y activos con que cuentan los hogares para aprovecharlas. El esquema propuesto permite maximizar la comprensión del efecto de la movilidad sobre el bienestar y el rol del transporte público.One of the major current challenges for mobility and transport studies in Latin America is the adoption of a multidimensional approach that goes beyond the narrower notion of trip and that does not neglect a broader discussion about mobility's effect on po verty and social exclusion. This article seeks to tackle this challenge and posits an analyticalframework that takes into account the theoretical and empirical regional background on these phenomena. After reviewing existing literature and affiliating to some necessary assumptions, it proposes the assets and opportunities structures approach as a useful device to study accessibility. This concept is defined as the level of adjustment between the structures of opportunity for mobility and household's resource and assets to take advantagefrom them. I argue that thisframework is adequate in order to maximize understanding of mobility's effect on welfare and the role of public transport.

  1. Help guide for the application of regulatory requirements on the transport of radioactive material; Guia de ayuda para la aplicacion de requisitos reglementarios sobr el transporte de material radiactivo

    Energy Technology Data Exchange (ETDEWEB)

    Martin Rodriguez, S.; Acena Moreno, V.; Zamora Martin, F.; Rubio de Juan, E.

    2011-07-01

    The regulation of transport of radioactive material by road in Spain refers to compliance with the requirements of the European Agreement concerning the International Carriage of Dangerous Goods by Road (ADR) in force. The structure presented by this legislation, which is international, and the inclusion in it of requirements that apply to other dangerous goods makes it difficult to consult the requirements that specifically apply to the transport of radioactive material. Therefore, the Nuclear Safety Council (CSN) has found it necessary to publish a guide that facilitates users to comply with its provisions and, consequently, this transport security.

  2. Estratégias para incentivar o transporte não motorizado em megaeventos esportivos: o caso do estádio do Maracanã, Rio de Janeiro

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    Josefina Flórez

    2018-02-01

    Full Text Available Resumo A fim de contribuir com a concepção de políticas de mobilidade urbana mais eficientes, foram definidas e avaliadas estratégias para promover o transporte não motorizado (principalmente a pé nos jogos realizados no estádio do Maracanã, que possam ser replicáveis em outras instalações esportivas que fazem parte dos megaeventos no Rio de Janeiro. As estratégias foram formuladas com base em duas fontes de informações, na revisão bibliográfica e nos resultados de uma pesquisa de campo constituída por: mais de 1.000 entrevistas com os espectadores dos jogos no Maracanã durante a Copa das Confederações de Futebol 2013; grupos focais envolvendo frequentadores desse estádio; e entrevistas em profundidade. Posteriormente, especialistas da administração pública foram consultados e avaliaram tais estratégias, definindo como prioritárias aquelas referentes às melhorias na infraestrutura e nos equipamentos para pedestres e cadeirantes, bem como as campanhas de divulgação e de conscientização que incentivam o uso dos modos não motorizados e desestimulam o uso dos automóveis. As estratégias destacadas pelos especialistas se caracterizam por apresentar um menor nível de dificuldade e de custo para a sua implantação, representando uma boa opção para melhorar a qualidade urbana e promover a mobilidade sustentável.

  3. Inclusión de otras voces en la enseñanza de transportes : Estrategia para el armado del rompecabezas del saber

    OpenAIRE

    Ruiz, María Dolores

    2013-01-01

    La Cátedra de Transportes de la Facultad de Ingeniería de la Universidad Nacional de La Plata (FI UNLP) forma parte del Departamento de Construcciones; la asignatura es parte del área de Transportes, caracterizada por un grupo de materias con una cierta tradición de jerarquías de difícil reversión tanto desde la práctica docente como del estudiantado. En Ingeniería, por una cuestión cultural, los temas de transporte no están valorizados como los de estructuras; además, y dentro del área, tien...

  4. Una nueva relación urbana para el Gran Concepción: Proyecto de Transporte Intermodal Biovías

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    Hugo Campos Miranda

    2004-11-01

    El presente artículo presenta dicho proceso aplicado al Gran Concepción y de sus resultados surgió el Sistema Integrado de Transportes, Biovías, cuya primera etapa se encontrará ejecutada y en operación a fines del 2005. Se trata de la intervención, en el ámbito del transporte urbano, más integral y ambiciosa en la historia de las regiones de nuestro país.

  5. The BEST project - BioEthanol for the Sustainable Transportation - a contribution to the environment of the metropolis; O projeto BEST - BioEtanol para o Transporte Sustentavel - uma contribuicao ao meio ambiente das metropoles

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez Velazquez, Silvia Maria Stortini; Santos, Sandra Maria Apolinario; Moreira, Jose Roberto; Melo, Euler Hoffmann; Coelho, Suani Teixeira [Centro Nacional de Referencia em Biomassa (CENBIO), Sao Paulo, SP (Brazil)], E-mail: silvia@iee.usp.br

    2010-07-01

    The BEST Project - Bio Ethanol for the Sustainable Transportation was an initiative of the European Union, coordinated by the Stockholm City Hall, at Sweden. This project gave incentives the use of ethanol, replacing the Diesel fuel, at the public transportation in Brazil and in the world. The used vehicles in the tests were monitored and evaluated to demonstrate the efficiency and environmental energy of the ethanol, and after the results, the BEST project and the European Union gave recommendations for the formulation of public politics of incentives to the use of technology.

  6. Methodology for solving the equation of transport ordered discrete TORT code in the reactor IPEN/MB-01; Metodologia para resolver la ecuacion del transporte con el codigo de Ordenadas Discretas TORT en el reactor IPEN/MB-01

    Energy Technology Data Exchange (ETDEWEB)

    Bernal, A.; Abarca, A.; Barrachina, T.; Miro, R.; Verdu, G.

    2013-07-01

    The resolution of the neutron transport equation in steady state in pool-type nuclear reactors, is normally achieved through 2 different numerical methods: Monte Carlo (stochastic) and discrete ordinates (deterministic). The discrete ordinates method solves the neutron transport equation for a set of specific addresses, obtaining a set of equations and solutions for each direction, where the solution for each direction is the angular flux. With the aim of treating energy dependence, used energy multigroup approximation, thus obtaining a set of equations that depends on the number of energy groups considered.

  7. Fabricación de electrodos para control de transporte y alineamiento a micro y nanoescalas usando técnicas bottom-up y top-down

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    Darwin Rodríguez

    2014-12-01

    Full Text Available El continuo avance de aplicaciones en dispositivos de autoensamble, posicionamiento, sensores, actuadores, y que permitan controladamente la manipulación de micro y nanoestructuras, han generado amplio interés en el desarrollo de metodologías que permitan optimizar la fabricación de dispositivos para el control y manipulación a micro y nanoescalas. Este proyecto explora técnicas de fabricación de electrodos con el fin de encontrar una técnica óptima y reproducible. Se compara el rendimiento de cada técnica y se describen protocolos de limpieza y seguridad. Se diseñan e implementan tres geometrías para movilizar y posicionar micro y nanopartículas de hierro en una solución de aceite natural. Finalmente se generan campos eléctricos a partir de electroforesis, con el fin de encontrar la curva que describe el desplazamiento de las partículas con respecto al potencial aplicado. Estos resultados generan gran impacto en los actuales esfuerzos de fabricación bottom-up (controlando con campos la ubicación y la movilidad en dispositivos electrónicos. El hecho de fabricar geometría planar con electrodos genera la posibilidad de que se pueda integrar movimiento de partículas a los circuitos integrados que se fabrican en la actualidad.

  8. Território, redes técnicas e transporte turístico aéreo: notas para discussão de seu contexto atual

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    Jaciel Gustavo Kunz

    2017-01-01

    Full Text Available As redes técnicas organizam o território na atualidade. Entre as tipologias de redes técnicas está a de circulação de pessoas, que opera a partir de distintos modais, com destaque para o aéreo. Este incorpora os maiores avanços técnicos e a perspectiva de fluidez. O presente trabalho tem por objetivo analisar contribuições teóricas a respeito do tema “redes técnicas” associado ao estudo do objeto “transporte aéreo de passageiros/turistas”, sob o contexto brasileiro atual dessa atividade. Por meio de pesquisa bibliográfica e documental de caráter exploratório, utilizam-se conceitos-chave, sobretudo da Geografia, afetos ao transporte aéreo, aproximando-os da perspectiva do Turismo. Esses permitem uma síntese, a partir da qual é possível propor uma reflexão preliminar, apontando relações – como entre hierarquias da rede de transporte aéreo e da rede urbana – e, também, agenda de pesquisa futura voltadas a uma compreensão mais ampla do transporte turístico aéreo na conjuntura contemporânea brasileira e sul-americana, oferecendo subsídios à intervenção com vistas ao desenvolvimento.

  9. Método para evaluar el impacto del ruido del transporte rodado en el marco del análisis del ciclo de vida.

    OpenAIRE

    Moliner Santisteve, Enrique; Vidal, Rosario; Franco García, Vicente; Garraín Cordero, Daniel

    2014-01-01

    Life Cycle Assessment (LCA) is a widely used tool for assessing the environmental impacts of a product or service throughout its life cycle. This includes transportation, which causes various environmental problems such as noise. Noise has special characteristics (dependence on local factors, lack of linear additivity of emissions, etc.) which complicate the assessment of its impact. The lack of data on noise has been an additional problem. However, the recent publication of the strategic noi...

  10. Propuesta de desarrollo del sistema de transporte fluvial como potencial turístico – urbano de durán para transferencia de pasajeros.

    OpenAIRE

    Ruilova Mosquera, Cristina; Guerrero, Jaime

    2009-01-01

    River tourism is currently positioning itself as an economic activity of great interest, especially in areas with this water resource and that in turn creates great appreciation of landscape and environmental value, which can be described as sustainable because the impact on the environment is not significant. This proposal is the development of river transport system in the canton Duran like as tourism potential, offering an alternative that generates tourism visits to the district throug...

  11. Network transportation model with capacity restrictions for the Bolivia Brazil gas pipeline influence area; Modelo de transporte em rede com restricoes de capacidade para a area de influencia do Gasoduto Bolivia Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Patricia Mannarino; Carpio, Lucio Guido Tapia [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia (COPPE). Programa de Planejamento Energetico

    2004-07-01

    We present the application of a network transportation model, with capacity restrictions, to determine the minimal cost of supply of a group of markets at the Bolivia Brazil Gas Pipeline influence area, as a function of city gate price. We consider the potential of integration of pipeline transportation at the South Cone, looking forward to supply the Brazilian market. The city gate price consists of the sum of commodity price plus transportation tariffs over every gas pipeline through which the gas passes (except distribution pipelines). There is no distinction related to product quality (e.g. heating value) among suppliers, or among end uses (thermal, thermoelectric or chemical). The model is numerically solved by linear programming. Flow direction alternatives and transportation tariffs alternatives (postal and by zone) are proposed. The model allows, among other applications: identification of the lowest cost supply strategy, identification of network flow capacity bottlenecks, determination of operation and expansion marginal costs using dual solution analysis, investigation of alternative sceneries through sensibility analysis and appreciation of non-optimal solutions that might be attractive. (author)

  12. The Best Project: bioethanol for sustainable transport and public policies to encourage the use of ethanol; O Projeto Best: bioetanol para o transporte sustentavel e as politicas publicas de incentivo ao uso do etanol

    Energy Technology Data Exchange (ETDEWEB)

    Velazquez Gonzalez, Silvia Maria Stortini; Santos, Sandra Maria Apolinario; Moreira, Jose Roberto; Melo, Euler Hoffmann [Universidade Presbiteriana Mackenzie, Sao Paulo, SP (Brazil); Centro Nacional de Referencia em Biomassa (CENBIO), Sao Paulo, SP (Brazil)

    2010-07-01

    The usage of ethanol in buses is a reality in cities from Sweden, such as Stockholm. The technology of diesel bus adapted to operate with ethanol has been used in that country since 1985, with great success, mainly in the environmental point of view. With the intent of encouraging ethanol usage in urban public transportation aiming, among other goals, at the reduction of atmospheric pollution in the big urban centers, the BEST Project - BioEthanol for Sustainable Transport was created. Besides Sao Paulo (pioneer in the Americas), this project, encouraged by the European Union, counts with eight other cities located in Europe and Asia. In Brazil, the project was developed and coordinated by CENBIO - Brazilian Reference Center on Biomass, from the Electrotechnics and Energy Institute of USP. With the partnership of other institutions, the project is developed since 2007 and currently counts on two diesel buses adapted to operate with ethanol. The buses circulate in operatives from EMTU - Sao Paulo Metropolitan Company for Urban Transports, in the Jabaquara - Sao Mateus line, and in operative from SPTrans - Sao Paulo Transportations, in the Lapa - Vila Mariana corridor. This paper has as its purpose to present the BEST Project in Brazil, its partners and, mainly, the results from the demonstration tests performed in field, as well as the proposals of public policies that were elaborated and are being implemented. It is worth remembering that the technology of the buses pays attention to the EURO 5 strict emission Standards, a norm that was recently invigorated in Europe. (author)

  13. Presencia de Giardia lamblia y Cryptosporidium spp. en aguas residuales depuradas reutilizadas para riego agrícola en la isla de Tenerife, España. Efectos del transporte a larga distancia sobre la calidad del agua reutilizada

    Directory of Open Access Journals (Sweden)

    N. Abreu Acosta

    2002-06-01

    Full Text Available El empleo de aguas residuales depuradas para riego agrícola es la alternativa de reutilización con más relevancia hoy día, siempre y cuando se desarrolle con garantías sanitarias y medioambientales.Giardia lamblia y Cryptosporidium spp. son dos protozoos patógenos entéricos de amplia distribución ambiental, frecuentes en hábitats acuáticos. La investigación y detección de estos parásitos en aguas ha adquirido importancia en los últimos años debido a que poseen formas de dispersión resistentes a los tratamientos habituales, aplicados tanto en procesos de potabilización como de depuración, y a que han sido clasificados como patógenos emergentes causantes de importantes brotes de transmisión hídrica.En este trabajo se estudia la presencia de quistes de Giardia lamblia y ooquistes de Cryptosporidium spp. en el agua residual depurada de la ciudad de Santa Cruz de Tenerife que es transportada hasta el sur de la isla de Tenerife para su reutilización en agricultura. Asimismo se investiga el efecto del transporte, el almacenamiento y el tratamiento avanzado sobre la concentración de quistes y ooquistes a través del sistema, y la existencia de relaciones con otros parámetros bacteriológicos y físico-químicos.Los resultados obtenidos ponen de manifiesto comportamientos variables de los contenidos en quistes y ooquistes frente a los tratamientos aplicados, y el efecto depurador que el transporte a larga distancia, parece tener sobre el agua residual depurada.No se han encontrado relaciones entre las concentraciones de quistes y ooquistes en el agua residual depurada y el contenido de los indicadores tradicionales de contaminación fecal.

  14. Sistemas de transporte de drogas para o segmento posterior do olho: bases fundamentais e aplicações Drug delivery systems for the posterior segment of the eye: fundamental basis and applications

    Directory of Open Access Journals (Sweden)

    Sílvia Ligório Fialho

    2007-02-01

    Full Text Available As doenças do segmento posterior do olho são responsáveis pela maioria dos casos de cegueira irreversível no mundo inteiro. Este cenário estimula o desenvolvimento de novas modalidades de tratamento para estas doenças. O sucesso no tratamento visa, essencialmente, o transporte de doses efetivas de drogas diretamente para os locais a serem tratados. Devido às dificuldades encontradas no transporte de drogas para o segmento posterior do olho, pesquisas têm sido realizadas no sentido de desenvolver sistemas de administração intra-oculares que permitam liberar concentrações terapêuticas das drogas por período prolongado. Tais sistemas podem proporcionar inúmeras vantagens, como: aumentar a biodisponibilidade e a concentração local da droga, atingir especificamente um tipo de tecido ou célula, reduzir a freqüência de injeções intra-oculares. Tais vantagens podem aumentar o conforto do paciente e reduzir as complicações observadas com a utilização das injeções intra-oculares. Diferentes sistemas de transporte de drogas têm sido desenvolvidos com as finalidades acima descritas. Estes sistemas podem ser compostos por polímeros biodegradáveis ou não-biodegradáveis ou serem formulações lipídicas. Os sistemas de transporte de drogas são representados, principalmente, pelas micro e nanopartículas e pelos implantes, sendo eles compostos por diferentes polímeros; pelos lipossomos, que são compostos por lípides e emulsionantes; e pela iontoforese, que se baseia na aplicação de corrente elétrica. Nesta revisão, as principais características dos diferentes sistemas de transporte de drogas serão descritas, expondo suas potencialidades de aplicação clínica.The diseases of the posterior segment of the eye are responsible for most cases of irreversible blindness worldwide. These conditions stimulate the development of new modalities of treatment for vitreoretinal diseases. The success in the treatment aims, mainly

  15. Atmospherical experiment in Angra I plant for characterizing the effluent transport threw in the atmospheric; Experimento atmosferico no local da Usina Angra I para caracterizar o transporte de efluentes lancados na atmosfera

    Energy Technology Data Exchange (ETDEWEB)

    Silva Lobo, M.A. da [FURNAS, Rio de Janeiro, RJ (Brazil); Kronemberger, B M.E.

    1990-12-31

    Available as short communication only. The Environmental Safety Division of the Nuclear Safety and Fuel Department from FURNAS Electric Station S.A. joint with the National Oceanic and Atmospheric Administration (NOAA), achieved a field experiment for characterizing the atmospheric transport and diffusion in the site complex of Angra I Nuclear Power Plant. The complex topography with the thick vegetation and the neighbour building bring problems for the modelling of the effluent transport and the dispersion. The actual meteorological measure system is automatic and compound with four towers. An intensive atmospheric measure with captive balloon is included, and the collected data shows that the site flux is strongly influenced by the topography and insolation. (C.G.C.). 2 figs.

  16. Factibilidad para la implementación de biodiesel en el transporte público de la ciudad de Celaya, Guanajuato

    OpenAIRE

    Juan Pablo Rangel Chávez; Alicia Alma Alejos Gallardo

    2012-01-01

    En la actualidad existen diversas formas de producir energía, ya no únicamente la generada por los llamados combustibles fósiles: carbón, gas y petróleo; mediante energías renovables es posible contar con otras alternativas como la eólica, geotérmica, hidroeléctrica, maremotríz, solar, biomasa y los biocombustibles. En este trabajo de investigación se estudia la viabilidad de usar un nuevo combustible en el transporte público urbano de la ciudad de Celaya, Guanajuato. Con esto se pretende sal...

  17. Development of a Monte Carlo software to photon transportation in voxel structures using graphic processing units; Desenvolvimento de um software de Monte Carlo para transporte de fotons em estruturas de voxels usando unidades de processamento grafico

    Energy Technology Data Exchange (ETDEWEB)

    Bellezzo, Murillo

    2014-09-01

    As the most accurate method to estimate absorbed dose in radiotherapy, Monte Carlo Method (MCM) has been widely used in radiotherapy treatment planning. Nevertheless, its efficiency can be improved for clinical routine applications. In this thesis, the CUBMC code is presented, a GPU-based MC photon transport algorithm for dose calculation under the Compute Unified Device Architecture (CUDA) platform. The simulation of physical events is based on the algorithm used in PENELOPE, and the cross section table used is the one generated by the MATERIAL routine, also present in PENELOPE code. Photons are transported in voxel-based geometries with different compositions. There are two distinct approaches used for transport simulation. The rst of them forces the photon to stop at every voxel frontier, the second one is the Woodcock method, where the photon ignores the existence of borders and travels in homogeneous fictitious media. The CUBMC code aims to be an alternative of Monte Carlo simulator code that, by using the capability of parallel processing of graphics processing units (GPU), provide high performance simulations in low cost compact machines, and thus can be applied in clinical cases and incorporated in treatment planning systems for radiotherapy. (author)

  18. Uso combinado de sistemas de informações geográficas para transportes e programação linear inteira mista em problemas de localização de instalações Combining geographic information systems for transportation and mixed integer linear programming in location-allocation problems

    Directory of Open Access Journals (Sweden)

    Sílvia Maria Santana Mapa

    2012-01-01

    Full Text Available O objetivo do trabalho é avaliar a qualidade das soluções para o problema de localização-alocação de instalações geradas por um SIG-T (Sistema de Informação Geográfica para Transportes, obtidas após a utilização combinada das rotinas Localização de Facilidades e Problema do Transporte, quando comparadas com as soluções ótimas obtidas a partir de modelo matemático exato baseado em Programação Linear Inteira Mista (PLIM, desenvolvido externamente ao SIG. Os modelos foram aplicados a três simulações: a primeira propõe a abertura de fábricas e alocação de clientes no Estado de São Paulo; a segunda envolve um atacadista e um estudo de localização de centros de distribuição e alocação dos clientes varejistas; a terceira localiza creches em um contexto urbano, alocando a demanda. Os resultados mostraram que, quando se considera a capacidade das instalações, o modelo otimizante PLIM chegou a apresentar, em um dos cenários simulados, resultados até 37% melhores do que o SIG, além de propor locais diferentes para abertura de novas instalações. Quando não se considera a capacidade, o modelo SIG se mostrou tão eficiente quanto o modelo exato PLIM, chegando exatamente às mesmas soluções.This study aims to evaluate the quality of the solutions for facility location-allocation problems generated by a GIS-T (Geographic Information System for Transportation software. These solutions were obtained from combining the Facility Location and Transportation Problem routines, when compared with the optimal solutions, which were obtained using the exact mathematical model based on the Mixed Integer Linear Programming (MILP developed externally to the GIS. The models were applied to three simulations: the first one proposes set up businesses and customers' allocation in the state of São Paulo; the second involves a wholesaler and an investigation of distribution center location and retailers' allocation; and the third one

  19. Transport Statistics - Transport - UNECE

    Science.gov (United States)

    Sustainable Energy Statistics Trade Transport Themes UNECE and the SDGs Climate Change Gender Ideas 4 Change UNECE Weekly Videos UNECE Transport Areas of Work Transport Statistics Transport Transport Statistics About us Terms of Reference Meetings and Events Meetings Working Party on Transport Statistics (WP.6

  20. Theoretical studies of H2--H2 collisions. IV. Ab initio calculations of anisotropic transport phenomena in para-hydrogen gas

    International Nuclear Information System (INIS)

    Koehler, W.E.; Schaefer, J.

    1983-01-01

    The temperature dependence of the effective Waldmann--Snider cross sections determining the Senftleben--Beenakker effects of viscosity and heat conductivity has been studied for pH 2 gas between 10 and 200 K. From ab initio nonspherical potentials of H 2 --H 2 , scattering matrices have been determined in close-coupling calculations. From these, the elements of the scattering amplitude matrix have been obtained and used as input quantities for the evaluation of the various Waldmann--Snider collision integrals. The results of these first ab initio numerical calculations of anisotropic transport coefficients show excellent agreement of calculated and measured effective cross sections, especially for the most recent improved version of the interaction potential. In addition, it has been shown that the polarization production cross sections are quite sensitive to the potential anisotropy

  1. Numerical study of thermal test of a cask of transportation for radioactive material; Estudo numérico do ensaio térmico de um casco de transporte para material radioativo

    Energy Technology Data Exchange (ETDEWEB)

    Vieira, Tiago A.S.; Santos, André A.C. dos; Vidal, Guilherme A.M.; Silva Junior, Geraldo E., E-mail: tiago.vieira.eng@gmail.com, E-mail: gvidal.ufmg@gmail.com, E-mail: aacs@cdtn.br, E-mail: geraldo.esilva@yahoo.com.br [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)

    2017-07-01

    In this study numerical simulations of a transport cask for radioactive material were made and the numerical results were compared with experimental results of tests carried out in two different opportunities. A mesh study was also made regarding the previously designed geometry of the same cask, in order to evaluate its impact in relation to the stability of numerical results for this type of problem. The comparison of the numerical and experimental results allowed to evaluate the need to plan and carry out a new test in order to validate the CFD codes used in the numerical simulations.

  2. PRODUT - a pipeline technological program to face the challenges in the oil and gas transportation in Brazil; PRODUT - um programa tecnologico de dutos para enfrentar os desafios do transporte de oleo e gas no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Passos, Ney Goncalves [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil). Centro de Pesquisas

    2003-07-01

    Following the international tendency of the pipeline companies, PETROBRAS has been investing relevant resources in new technologies, with the objective of increasing reliability and life span, and decreasing the cost and the risk of leakage. PETROBRAS created in 1998 the pipeline technological program, PRODUT, to be responsible for coordinating the development of the company R and D projects. This paper will present PRODUT and the good results obtained in order to increase reliability and competitiveness of transportation systems, essential for global performance of the petroleum industry. (author)

  3. Development of transport planning: information and participation as fundamentals Planejamento de transportes: informação e participação como fundamentos para o seu desenvolvimento

    Directory of Open Access Journals (Sweden)

    Antonio Rodrigues de Andrade

    2006-09-01

    Full Text Available Information is fundamental for the accomplishments of individuals, groups, organizations and institutions in all sectors of society. The term information has gained relevance now in business especially with the explosion of information supported by development of new and emerging technologies. Processing information has taken on new dimensions at a very fast pace. The quality of information related to transport planning in Brazil was analyzed. Practical and theoretical references were evaluated and discussed as well as the possibilities and importance of the use and of the management of this information.Informação é um elemento fundamental nas realizações de indivíduos, grupos, organizações e instituições em todos os espaços de convivência de uma sociedade. O termo informação tornou-se mais relevante atualmente, sobretudo pela explosão informacional baseada no desenvolvimento de novas tecnologias emergentes. O tratamento da informação ganhou nova dimensão em um ritmo muito acelerado. O principal objetivo deste trabalho é analisar a qualidade da informação vinculada ao planejamento de transportes no Brasil. O trabalho ainda avalia e discute referências práticas e teóricas e as possibilidades e importância do uso e gerenciamento dessa informação.

  4. Calculations of hydrogen transport for the simulation of a Sbo in the NPP-L V using the code CFD GASFLOW; Calculos de transporte de hidrogeno para la simulacion de un SBO en la CNLV usando el codigo CFD GASFLOW

    Energy Technology Data Exchange (ETDEWEB)

    Gomez T, A. M.; Xolocostli M, V. [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico); Lopez M, R.; Filio L, C.; Mugica R, C. A. [Comision Nacional de Seguridad Nuclear y Salvaguardias, Dr. Jose Ma. Barragan No. 779, Col. Narvarte, 03020 Mexico D. F. (Mexico); Royl, P., E-mail: armando.gomez@inin.gob.mx [Karlsruhe Institute of Technology, Consultor, Hermann-von-Helmholtz-Platz, D-76344 Eggenstein -Leopoldshafen, Karlsruhe (Germany)

    2013-10-15

    The scenario of electric power total loss in the nuclear power plant of Laguna Verde (NPP-L V) has been analyzed using the code MELCOR previously, until reaching fault conditions of the primary container. A mitigation measure to avoid the loss of the primary contention is the realization of a venting toward the secondary contention (reactor building), however this measure bears the potential explosions occurrence risk when the hydrogen accumulated in the primary container with the oxygen of the reactor building atmosphere reacting. In this work a scenario has been supposed that considers the mentioned venting when the pressure of 4.5 kg/cm{sup 2} is reached in the primary container. The information for the hydrogen like an entrance fact is obtained of the MELCOR results and the hydrogen transport in both contentions is analyzed with the code CFD GASFLOW that allows predicting the detailed distribution of the hydrogen volumetric concentration and the possible detonation of flammability conditions in the reactor building. The results show that the venting will produce detonation conditions in the venting level (level 33) and flammability in the level of the recharge floor. The methodology here described constitutes the base of a detailed calculation system of this type of phenomena that can use to make safety evaluations in the NPP-L V on scenarios that include gases transport. (Author)

  5. Control de eficiencia en accionamiento de bombas centrífugas para transporte de hidromezclas usando lógica difusa

    Directory of Open Access Journals (Sweden)

    Luis D Rojas Purón

    2011-02-01

    Full Text Available Se presenta un algoritmo de control difuso que tiene en cuenta las especificidades de los subsistemaseléctrico y mecánico del accionamiento. Es de interés un bloque compensador del torque electromagnéticoque mejora el trabajo del controlador difuso ante los fenómenos de cavitación que ocasiona pulsacionesdel momento y la resonancia mecánica que pueden aparecer durante el trabajo de la bomba centrífuga.Se muestran resultados experimentales de accionamientos de la planta de lixiviación de la empresaComandante Ernesto Che Guevara de Moa, con un efecto económico de aproximadamente 262 000 USDanuales por energía dejada de consumir en forma de pérdidas con el uso del controlador operando adiferentes niveles de cargas mecánicas, y que sirve para ser utilizado en accionamientos de bombas delas plantas metalúrgicas de Moa y Nicaro.  A fuzzy logic control algorithm offers the specificities of the electric subsystem and mechanic of theoperations. It is of interest a block compensator of the electromagnetic torque that improves the work ofthe fuzzy controller's before the cavitation phenomena that causes pulsations of the torque and themechanical resonance that can appear during the operation of the centrifugal pumps. Experimentalresults are shown with the controller operating at the leaching plant of the Ernesto Che Guevara Corporation,Moa for an economic effect of 262 000 USD per year. which most of the unused energy in form of losses,when the controller works to different mechanical loads and that it is good to be used in operations ofpumps of the metallurgical plants of Moa and Nicaro.

  6. Characterization of victims of aggression and transportation accidents treated at the Forensic Medicine and Dentistry Institute - Campina Grande, Paraíba, Brazil - 2010.

    Science.gov (United States)

    d'Avila, Sergio; Campos, Ana Cristina; Cavalcante, Gigliana Maria Sobral; Silva, Carlos Jose de Paula; da Nóbrega, Lorena Marques; Ferreira, Efigenia Ferreira E

    2015-03-01

    The objective of this cross-sectional census study was to characterize agression and land-based transport accidents in a city in the Northeast of Brazil. Data was analyzed from live victims who were treated at a forensic service (N = 2.379). In the descriptive analysis, the majority of events were represented by aggression (71.6%); which occurred on weekdays (65%), with 35.1% at night. Trauma occurred to the whole body (63.6%) and to soft tissue (74.2%). On the basis of multiple correspondence analysis, two dimensions were formed: the first dimension (internal reliability = 0.654) was formed by the cause of the event, the trauma and the age group and the second dimension (reliability = 0.514), by age group, occupation and civil status. Three groups with distinct profiles were formed for accidents and aggression: young women who suffered aggression, with trauma to the face and soft tissues during the evening and at weekends; adult men who suffered car accidents, in the morning and on work days; and retired elderly widowers, who were run over.

  7. Necessary calorific energy during the in-service welding of pipelines for petroleum transport; Energia calorifica necesaria durante la soldadura en servicio de tuberias para el transporte de petroleo

    Energy Technology Data Exchange (ETDEWEB)

    Ramos Morales, Felix; Scott, Alejandro Duffus; Rodriguez Perez, Manuel; Diza Cedre, Eduardo; Pozo Morejon, Juan A. [Universidad Central Marta Abreu de las Villas, Santa Clara, Villa Clara (Cuba). Centro de Investigaciones de Soldadura

    2009-01-15

    The thermal behavior during in service repair welding of oil transportation pipes was studied by finite element analysis in the present paper. Regression equations that relate peak temperature at the inner surface of the pipe and cooling time between 800 and 500 deg C in the heat affected zone to the welding heat input, preheat temperature, and convection heat transfer coefficient were obtained. The former parameters govern, respectively, the possibility of burn through and cold cracking, and the latter parameters define the thermal behavior during welding. The existence of conditions that simultaneously satisfy the obtained equations, for different combinations of related variables, was proved. Graphical representations of relevant practical importance that were developed from the solution of obtained equations are presented. (author)

  8. Mejorando la Calidad de los Métodos de Solución para Redes de Transporte de Gas Natural mediante Técnicas de Optimización

    Directory of Open Access Journals (Sweden)

    Roger Z Rios Mercado

    2012-07-01

    Full Text Available En este trabajo se estudia el problema de minimizar el consumo de combustible incurrido por las estaciones compresoras en un sistema de redes de transporte de gas natural en estado estable, el cual es uno de los problemas de mayor relevancia e importancia en la industria energética por la enorme cantidad de gas que se mueve por un sistema de distribución cada año.  En el mundo real, este tipo de instancias son muy grandes, en términos del número de variables de decisión y del número de restricciones tecnológicas, y muy complejas debido a la presencia de no linealidad y no convexidad en el conjunto  de soluciones factibles y en la función objetivo.  La contribución del presente trabajo consiste en ilustrar cómo un método de solución basado en técnicas avanzadas de optimización como lo son la programación dinámica no secuencial y la descomposición de redes puede emplearse para mejorar notablemente la operación de redes de transporte de gas natural.  Los resultados computacionales muestran la superioridad del método desarrollado al compararlo con el trabajo existente, convirtiéndose así en un avance considerable al estado del arte en esta disciplina.

  9. 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.

  10. Use of radioactive tracers in studying the transport of solids in watercourses; Emploi de traceurs radioactifs pour l'etude du transport solide dans les cours d'eau; Ispol'zovanie radioaktivnykh indikatorov dlya izucheniya peremeshcheniya tverdykh chastits v vodnykh potokakh; Empleo de indicadores radiactivos para el estudio del transporte de solidos en las corrientes de agua

    Energy Technology Data Exchange (ETDEWEB)

    Courtois, G [Centre d' Etudes Nucleaires de Saclay (France); Jaeery, P; Heuzel, M [Laboratoire National d' Hydraulique de Chatou (France)

    1962-01-15

    The National Hydraulics Laboratory which, in collaboration with the Saclay Nuclear Research Centre, has for several years been devising equipment and techniques for the study of sediment movements by the radioactive tracer method, is now endeavouring to develop a really quantitative method of research. Two river experiments were recently made, the first a study of shingle drifting in the Rhone, the second a study of sand movement in the Niger. The latter experiment was matched by identical experiments carried out on a scale model of the River Niger which the Chatou Laboratory has at its disposal. The experiments used Mn{sup 56} and Na{sup 24} radiation obtained by direct activation of crushed apricot stone, this representing in the scale model the natural sediment of the Niger bed. The Chatou Laboratory and the Saclay Nuclear Study Centre are at present both devoting attention to the application of radioactive tracers in studies with scale models, with the twin aims of: (a) Obtaining a single research tool for use under natural conditions and with scale models in order to gauge the trustworthiness of the model, in the calibration testing stage; (b) Taking advantage of the facilities for direct observation and measurement offered by scale models in order to study prospects of improving the tracer method, with a view particularly to securing quantitative data. (author) [French] Le Laboratoire national d'hydraulique, qui depuis quelques annees a developpe, en collaboration avec le Centre d'etudes nucleaires de Saclay, les appareillages et les techniques d'etudes des mouvements de sediments par la methode des traceurs radioactifs, s'efforce actuellement de mettre au point un moyen d'investigation veritablement quantitatif. Deux experiences ont ete effectuees recemment en riviere, la premiere a ete consacree a l'etude du charriage des galets dans le Rhone, l'autre a l'etude des transports de sables dans le Niger. Cette derniere experience a ete doublee d

  11. Modelo para la definición e implementación de procesos de gobierno de tecnologías de la información aplicado a CENIT Transporte y Logística de Hidrocarburos S.A.S.

    OpenAIRE

    Páez Ruiz, Andrea Paola; Vivas Hernández, Fredy

    2016-01-01

    El crecimiento que ha venido presentando CENIT Transporte y logística de hidrocarburos S.A.S. ha conducido a su área de tecnología a revisar los procesos tecnológicos con los que apoya a todas las áreas de negocio para el logro de la estrategia empresarial. Para poder cumplir con esta promesa de valor hacia la organización, el área de tecnología bajo un marco de trabajo reconocido debe analizar, definir, estructurar e implementar formalmente sus procesos y de esta manera también cumplirá con ...

  12. Schedules of Provisions of the IAEA Regulations for the Safe Transport of Radioactive Material (2005 Ed.). Safety Guide (Spanish Edition); Listas de disposiciones del reglamento del OIEA para el transporte seguro de materiales radiactivos (Edicion de 2005 corregida)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-12-15

    The IAEA's Statute authorizes the Agency to establish safety standards to protect health and minimize danger to life and property - standards which the IAEA must use in its own operations, and which a State can apply by means of its regulatory provisions for nuclear and radiation safety. A comprehensive body of safety standards under regular review, together with the IAEA's assistance in their application, has become a key element in a global safety regime. In the mid-1990s, a major overhaul of the IAEA's safety standards programme was initiated, with a revised oversight committee structure and a systematic approach to updating the entire corpus of standards. The new standards that have resulted are of a high calibre and reflect best practices in Member States. With the assistance of the Commission on Safety Standards, the IAEA is working to promote the global acceptance and use of its safety standards. Safety standards are only effective, however, if they are properly applied in practice. The IAEA's safety services - which range in scope from engineering safety, operational safety, and radiation, transport and waste safety to regulatory matters and safety culture in organizations - assist Member States in applying the standards and appraise their effectiveness. These safety services enable valuable insights to be shared and I continue to urge all Member States to make use of them. Regulating nuclear and radiation safety is a national responsibility, and many Member States have decided to adopt the IAEA's safety standards for use in their national regulations. For the contracting parties to the various international safety conventions, IAEA standards provide a consistent, reliable means of ensuring the effective fulfilment of obligations under the conventions. The standards are also applied by designers, manufacturers and operators around the world to enhance nuclear and radiation safety in power generation, medicine, industry, agriculture, research and education

  13. Elasticidad-precio de la demanda del transporte público urbano: un análisis para los servicios de ómnibus y subterráneo de la Ciudad Autónoma de Buenos Aires

    Directory of Open Access Journals (Sweden)

    Jerónimo Montalvo

    2016-07-01

    Full Text Available En este trabajo se estiman distintas elasticidades de la demanda del transporte público urbano, específicamente de los servicios de subterráneo y ómnibus que realizan su recorrido dentro de la Ciudad Autónoma de Buenos Aires (CABA. Para ello se utiliza una base de datos con periodicidad mensual entre los años 1993-2013 y, mediante el uso de dos metodologías diferentes –modelos dinámicos y el de cointegración y modelos de corrección de errores, se estiman– los coeficientes de corto y largo plazo, haciendo hincapié en las elasticidades-precio de la demanda de cada servicio. En línea con estudios existentes, se encuentran demandas inelásticas con coeficientes de largo plazo mayores a los corto plazo. En el caso del subte, donde fue posible utilizar más variables explicativas, ambos métodos de estimación arrojan valores que rondan una elasticidad-precio negativa entre 0,1 y 0,2. Por su parte, en relación al ómnibus, con más dificultades de estimación, la velocidad de ajuste de la demanda a su propio precio es mucho menor, implicando mayores diferencias entre las elasticidades de corto y largo plazo, si bien los valores estimados de estas últimas son cercanos a los estimados en la experiencia internacional (-0,5.Clasificación JEL: C5, R40.Palabras claves: elasticidad, demanda, transporte público, Ciudad Autónoma de Buenos Aires. Price elasticity of demand for urban public transport:An analysis for bus and underground services of the Autonomous City of Buenos AiresAbstractThis paper estimates the demand elasticity of two urban public transport services within the limits of the City of Buenos Aires, i.e., underground subway services and buses whose entire route runs within the boundaries of the city. I use a monthly database from 1993 until 2013 and, by using two different methodologies –dynamic models and cointegration and error correction models–, different regressions are analyzed to

  14. Solution of the transport equation in stationary state, in one and two dimensions, for BWR assemblies using nodal methods; Solucion de la ecuacion de transporte en estado estacionario, en 1 y 2 dimensiones, para ensambles tipo BWR usando metodos nodales

    Energy Technology Data Exchange (ETDEWEB)

    Xolocostli M, J V

    2002-07-01

    The main objective of this work is to solve the neutron transport equation in one and two dimensions (slab geometry and X Y geometry, respectively), with no time dependence, for BWR assemblies using nodal methods. In slab geometry, the nodal methods here used are the polynomial continuous (CMPk) and discontinuous (DMPk) families but only the Linear Continuous (also known as Diamond Difference), the Quadratic Continuous (QC), the Cubic Continuous (CC), the Step Discontinuous (also known as Backward Euler), the Linear Discontinuous (LD) and the Quadratic Discontinuous (QD) were considered. In all these schemes the unknown function, the angular neutron flux, is approximated as a sum of basis functions in terms of Legendre polynomials, associated to the values of the neutron flux in the edges (left, right, or both) and the Legendre moments in the cell, depending on the nodal scheme used. All these schemes were implemented in a computer program developed in previous thesis works and known with the name TNX. This program was modified for the purposes of this work. The program discreetizes the domain of concern in one dimension and determines numerically the angular neutron flux for each point of the discretization when the number of energy groups and regions are known starting from an initial approximation for the angular neutron flux being consistent with the boundary condition imposed for a given problem. Although only problems with two-energy groups were studied the computer program does not have limitations regarding the number of energy groups and the number of regions. The two problems analyzed with the program TNX have practically the same characteristics (fuel and water), with the difference that one of them has a control rod. In the part corresponding to two-dimensional problems, the implemented nodal methods were those designated as hybrids that consider not only the edge and cell Legendre moments, but also the values of the neutron flux in the corner points

  15. Solution of the transport equation in stationary state, in one and two dimensions, for BWR assemblies using nodal methods; Solucion de la ecuacion de transporte en estado estacionario, en 1 y 2 dimensiones, para ensambles tipo BWR usando metodos nodales

    Energy Technology Data Exchange (ETDEWEB)

    Xolocostli M, J.V

    2002-07-01

    The main objective of this work is to solve the neutron transport equation in one and two dimensions (slab geometry and X Y geometry, respectively), with no time dependence, for BWR assemblies using nodal methods. In slab geometry, the nodal methods here used are the polynomial continuous (CMPk) and discontinuous (DMPk) families but only the Linear Continuous (also known as Diamond Difference), the Quadratic Continuous (QC), the Cubic Continuous (CC), the Step Discontinuous (also known as Backward Euler), the Linear Discontinuous (LD) and the Quadratic Discontinuous (QD) were considered. In all these schemes the unknown function, the angular neutron flux, is approximated as a sum of basis functions in terms of Legendre polynomials, associated to the values of the neutron flux in the edges (left, right, or both) and the Legendre moments in the cell, depending on the nodal scheme used. All these schemes were implemented in a computer program developed in previous thesis works and known with the name TNX. This program was modified for the purposes of this work. The program discreetizes the domain of concern in one dimension and determines numerically the angular neutron flux for each point of the discretization when the number of energy groups and regions are known starting from an initial approximation for the angular neutron flux being consistent with the boundary condition imposed for a given problem. Although only problems with two-energy groups were studied the computer program does not have limitations regarding the number of energy groups and the number of regions. The two problems analyzed with the program TNX have practically the same characteristics (fuel and water), with the difference that one of them has a control rod. In the part corresponding to two-dimensional problems, the implemented nodal methods were those designated as hybrids that consider not only the edge and cell Legendre moments, but also the values of the neutron flux in the corner points

  16. Estrategias para promover la accesibilidad, cobertura y calidad en el sistema de transporte público urbano para la población con discapacidad física: Caso Bogotá / Strategy to promote accessibility, coverage and quality of urban public transport system for people with physical disability: Case of Bogotá

    OpenAIRE

    Martínez Ortega, Diana Carolina

    2012-01-01

    Por años las personas con discapacidad han visto como su derecho a la libre movilización ha sido vulnerado, porque los sistemas urbanos de transporte público no ofrecen las características dignas de accesibilidad en sus subsistemas. Esta situación provoca exclusión social generando como consecuencia una disminución paulatina en la calidad de vida de las personas que sobrellevan algún tipo de discapacidad y sus familias. El problema identificado en este caso se centra en la dificultad e imposi...

  17. RBE of some Sodium, Water and Bioelectric Parameters of Gastro-Intestinal Absorption; L'EBR pour le Transport du Sodium et de l'Eau et pour Certains Parametre Bioelectriques dans l'Absorption Gastro-Intestinale; Obeh v otnoshenii nekotorykh natrievykh, vodnykh i bioehlektricheskikh parametrov vsasyvaniya v zheludochno-kishechnom trakte; La EBR Para el Transporte del Sodio y del Agua y Para Ciertos Parametros Bioelectricos en la Absorcion Gastrointestinal

    Energy Technology Data Exchange (ETDEWEB)

    Vaughan, B. E.; Davis, A. K.; Cummins, J. T.; Alpen, E. L. [US Naval Radiological Defense Laboratory, San Francisco, CA (United States)

    1964-05-15

    que aplicaron para efectuar determinaciones bioelectricas y de flujos unidireccionales. Expusieron ratas y perros a neutrones rapidos y a rayos X de 250 kVp (ratas)y de 1000 kVp (perros). Los animales fueron sometidos a una exposicion bilateral de cuerpo entero y en cada caso se determino la dosis profunda. En la rata, a los siete dias a contar de la irradiacion, la actividad bioelectrica en el estomago se reduce notablemente con respecto a la normal, pero no ocurre lo mismo en los tramos inferiores del conducto gastrointestinal. Puede asignarse un valor comprendido entre 2 y 3 a la EBR correspondiente a la reduccion diferida de la actividad bioelectrica gastrica y este efecto se comprueba facilmente con dosis neutronicas de 160 rad (primer choque). En el perro, tres dias despues de la irradiacion, las velocidades de transporte unidireccional del plasma al lumen se reducen, tanto para el sodio como para el agua. Este efecto se observa despues de aplicar 1200 r de rayos X (dosis en el aire) y de dosis neutronicas de 300 rad o bien de 600 rad (primer choque). En cambio, con dosis de 600 r de rayos X (en el aire), dichas velocidades de transporte no disminuyen y se manifiesta la tendencia opuesta. De la reduccion diferida de los transportes del plasma al lumen puede deducirse que el valor de la EBR esta comprendido entre 2 y 6. El mecanismo electrogenico en el estomago del raton, segun estos estudios, posee especificidad con respecto al ion sodio, a diferencia de lo que ocurre en la rana. Los potenciales in vitro coinciden con los determinados in vivo y solo son afectados por el envenenamiento metabolico o la sustitucion del sodio. Comparadas con las mediciones de los parametros bioelectricos, las determinaciones de flujos son mas especificas; sin embargo, su acentuada variabilidad biologica limita su utilidad. En los flujos unidireccionales, del plasma al lumen, se observa una modalidad de alteracion constante en funcion de la irradiacion, que indica que la

  18. GERENCIAMENTO DE TRANSPORTE COLETIVO

    Directory of Open Access Journals (Sweden)

    Milena Bodmer

    2010-05-01

    Full Text Available Trata-se da primeira produção acadêmica voltada para as necessidades do setor de transporte de passageiros. O trabalho, destinado não só aos executivos das empresas, como também aos técnicos, aos pesquisadores e consultores da área de transporte de passageiros, traz no seu bojo a preocupação de aproximar as contribuições teóricas ao estado da prática nas empresas operadoras. O livro, através dos seus oito capítulos, abre as portas para os tópicos que devem ser considerados essenciais para as possibilidades de aperfeiçoamento e modernização gerencial.

  19. para palmito

    Directory of Open Access Journals (Sweden)

    Francisco Paulo Chaimsohn

    2007-01-01

    Full Text Available Densidades de siembra, arreglos espaciales y fertilización en pejibaye (Bactris gasipaes cv Diamantes-10 para palmito. La investigación se llevó a cabo en la Estación Experimental Los Diamantes (Guápiles, Costa Rica, el 3 de octubre del 2003, cuyo objetivo fue la evaluación del efecto de diferentes densidades de siembra (3.333, 5.000 y 6.666 plantas/ha, arreglos espaciales, y diversos métodos de fertilización (química, orgánica, sobre el crecimiento de las plantas de pejibaye para producción de palmito. Se consideraron las variables diámetro y altura del tallo primario y el número de hojas y rebrotes como indicadores de producción. El período de evolución abarcó sólo los primeros 25 meses de crecimiento en el campo. El número de hojas, la altura y el diámetro del tallo no mostraron diferencias de respuesta relevantes. Sólo el número de rebrotes disminuyó al aumentar la densidad de la población, cuando se midió a los 15 meses de edad. El efecto de la fertilización se hizo evidente después de la primera cosecha, realizada a los 20 meses, debido al aumento de la competencia entre plantas, ahora más desarrolladas. Fue entonces cuando la fertilización química indujo la producción de un mayor número y vigor de los rebrotes. Sin embargo, las prácticas evaluadas 25 meses después de la siembra, no habían infl uido hasta ese momento en el número de palmitos cosechados, ni tampoco había afectado las características físicas de los sectores foliar y caulinar del palmito.

  20. Diseño, y construcción de un sistema electrónico para la medición automática de la profundidad de la banda de rodadura de los neumáticos en los vehículos pesados de transporte de pasajeros

    OpenAIRE

    Nivicela Jara, Juan Carlos; Pangol Rodríguez, Edgar Fernando

    2015-01-01

    El documento consiste en la creación de un prototipo de un dispositivo electrónico para realizar la medida automática de la banda de rodadura de los neumáticos en los vehículos pesados de transporte de pasajeros, con la finalidad de realizar un control más técnico en el estado de los mismos y obtener mediciones más precisas. The document is the creation of a prototype of an electronic device for automatic measurement of the band of rolling on tire for heavy passenger vehicles, in order to ...

  1. Decree 560/003. It approve the National Regulations text about dangerous goods transport by road, for national jurisdiction routes; Decreto 560/003. Apruebase el texto del Reglamento Nacional sobre el transporte de mercancias peligrosas por carretera, para rutas de jurisdiccion nacional

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-01-14

    This decree approve the transport regulation in the national jurisdiction routes. Is prohibited the transport of dangerous good with contamination risk in food, medication or articles intended for human or animal use.

  2. Diseño e impementación de un Sistema de Auditoría Financiera para empresas de transporte público rural. Caso: Cooperativa de Trasnporte de Pasajeros Yaruquí.

    OpenAIRE

    Andrade Carvajal, Christian Alejandro

    2011-01-01

    This research includes the development of a "Design and Implementation of a Financial Audit System for Rural public transport companies, event: Passenger Transport Cooperative Yaruquí", is aimed at all those involved with the audit and racing purposes want to expand and specialize your knowledge through this research as a tool to the needs and capacity to assess their own knowledge and thus take measures to improve its current performance. This work is based on developing a coherent inform...

  3. Energía calorífica necesaria, durante la soldadura en servicio de tuberías para el transporte de petróleo Necessary calorific energy, during the in-service welding of pipelines for petroleum transport

    Directory of Open Access Journals (Sweden)

    Félix Ramos Morales

    2009-03-01

    Full Text Available En el presente artículo, empleando el análisis por elementos finitos, se estudió el comportamiento térmico durante la soldadura de reparación, en condiciones de servicio, de un tubo que transporta petróleo. Se obtuvieron ecuaciones de regresión que relacionan a la temperatura máxima en la superficie interna del tubo y al tiempo de enfriamiento desde 800 ºC hasta 500 ºC de un punto situado en la zona afectada por el calor (ZAC, parámetros que gobiernan la ocurrencia de perforaciones en la pared del tubo y agrietamiento en frío respectivamente, con el calor de entrada de la soldadura, la temperatura de precalentamiento y el coeficiente de transferencia de calor por convección, variables que definen el comportamiento térmico durante la ejecución del proceso de soldadura. Se probó la existencia de una zona en que se satisfacen simultáneamente las ecuaciones obtenidas, para diferentes combinaciones de las variables relacionadas. Se presentaron nomogramas con un importante valor práctico, desarrollados a partir de la solución de las ecuaciones obtenidas.The thermal behavior during in service repair welding of oil transportation pipes was studied by finite element analysis in the present paper. Regression equations that relate peak temperature at the inner surface of the pipe and cooling time between 800 and 500ºC in the heat affected zone to the welding heat input, preheat temperature, and convection heat transfer coefficient were obtained. The former parameters govern, respectively, the possibility of burn through and cold cracking, and the latter parameters define the thermal behavior during welding. The existence of conditions that simultaneously satisfy the obtained equations, for different combinations of related variables, was proved. Graphical representations of relevant practical importance that were developed from the solution of obtained equations are presented.

  4. Radiation Transport

    Energy Technology Data Exchange (ETDEWEB)

    Urbatsch, Todd James [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2015-06-15

    We present an overview of radiation transport, covering terminology, blackbody raditation, opacities, Boltzmann transport theory, approximations to the transport equation. Next we introduce several transport methods. We present a section on Caseology, observing transport boundary layers. We briefly broach topics of software development, including verification and validation, and we close with a section on high energy-density experiments that highlight and support radiation transport.

  5. Un TIM verde para el POT

    OpenAIRE

    Duque Escobar, Gonzalo

    2014-01-01

    Manizales, que tampoco escapa a los problemas causados por la proliferación de carros y motos, y la congestión vehicular, debe integrar dos objetivos al POT: más transporte público colectivo y masivo, y mas ciclovías y rutas peatonales para viajes no motorizados

  6. Chamber transport

    International Nuclear Information System (INIS)

    Olson, Craig L.

    2001-01-01

    Heavy ion beam transport through the containment chamber plays a crucial role in all heavy ion fusion (HIF) scenarios. Here, several parameters are used to characterize the operating space for HIF beams; transport modes are assessed in relation to evolving target/accelerator requirements; results of recent relevant experiments and simulations of HIF transport are summarized; and relevant instabilities are reviewed. All transport options still exist, including (1) vacuum ballistic transport, (2) neutralized ballistic transport, and (3) channel-like transport. Presently, the European HIF program favors vacuum ballistic transport, while the US HIF program favors neutralized ballistic transport with channel-like transport as an alternate approach. Further transport research is needed to clearly guide selection of the most attractive, integrated HIF system

  7. INFORMATION SYSTEMS APPLIED TO TRANSPORT IMPROVEMENT

    Directory of Open Access Journals (Sweden)

    JULIAN ANDRES ZAPATA CORTES

    2013-01-01

    Full Text Available El transporte es uno de los elementos más relevantes para la competitividad de las empresas y las ciudades, pues un sistema de transporte inadecuado genera altos costos y bajos niveles de servicio al cliente, lo que fi nalmente produce un impacto económico para ambas partes. Este artículo presenta una revisión de herramientas tecnológicas que hacen parte de los sistemas de transporte inteligentes (ITS, sistemas utilizados para el mejoramiento del desempeño y seguridad del transporte, no solo de carga sino también de pasajeros y en diferentes modos. El artículo comienza con una descripción sobre los sistemas de transporte ITS, seguido por la presentación de los benefi cios de estos sistemas y fi nalmente se realiza una revisión de las diferentes herramientas que enmarcan los ITS.

  8. Uso da Teoria dos Pólos de Crescimento e Pólos de Desenvolvimento para a elaboração de rede de transporte multimodal de cargas para a região Amazônica (D.O.I. 10.5216/reec.V9i1.29299

    Directory of Open Access Journals (Sweden)

    Cristiano Farias Almeida

    2014-09-01

    Full Text Available RESUMO: A relação entre transporte e desenvolvimento econômico é estudada há anos. No Brasil, especialmente na Região Amazônica, tal enfoque teve iniciou na década de 70 com elaboração de alguns planos e projetos direcionados ao crescimento econômico regional. No entanto, devido alguns fatores, tais como a incompatibilidade entre os modelos propostos de planejamento de transporte e planejamento territorial, os resultados esperados não foram alcançados. Visto que os tomadores de decisões focaram na ocupação territorial e não em modelos de planejamento que explorassem os recursos naturais disponíveis. Sob tal ponto de vista, esse artigo tem como objetivo propor uma rede de transporte multimodal de cargas que proporcione o deslocamento eficiente de produtos. Considerou-se no cenário de pesquisa o uso de recursos naturais disponíveis na área de estudo. A rede proposta permite estimular o crescimento e desenvolvimento econômico regional e foi baseada na Teoria dos Pólos de Crescimento e Pólos de Desenvolvimento e na Teoria dos Grafos, os quais são comumente usadas em estudos de redes de transporte. ABSTRACT: The relationship between transport and economic development has been studied for years. In Brazil such matter began being studied in the 70’s, when several plans and projects for economic development were created. However, due to factors like the incompatibility between the proposed models of transportation planning and territorial planning, the expected results were never achieved. Since the decision makers focused on territorial occupation and do not concerning with transportation planning models that explore the natural resources available. In that view, this paper sets out to devise a multimodal cargo transportation network that enables goods to be efficiently conveyed within a region. The network should be developed using the natural resources available in the area. The proposed network aims at stimulating regional

  9. Transport phenomena

    International Nuclear Information System (INIS)

    Kirczenow, G.; Marro, J.

    1974-01-01

    Some simple remarks on the basis of transport theory. - Entropy, dynamics and scattering theory. - Response, relaxation and fluctuation. - Fluctuating hydrodynamics and renormalization of susceptibilities and transport coefficients. - Irreversibility of the transport equations. - Ergodic theory and statistical mechanics. - Correlation functions in Heisenberg magnets. - On the Enskog hard-sphere kinetic eqquation and the transport phenomena of dense simple gases. - What can one learn from Lorentz models. - Conductivity in a magnetic field. - Transport properties in gases in presence of external fields. - Transport properties of dilute gases with internal structure. (orig.) [de

  10. Presencia de Giardia lamblia y Cryptosporidium spp. en aguas residuales depuradas reutilizadas para riego agrícola en la isla de Tenerife, España. Efectos del transporte a larga distancia sobre la calidad del agua reutilizada Giardia lamblia and Cryptosporidium spp. Presence in treated wastewater reutilised for irrigation in Tenerife island, Spain. Long-distance transport effects in the reutilised water quality

    Directory of Open Access Journals (Sweden)

    Escolástico Aguiar González

    2002-06-01

    Full Text Available El empleo de aguas residuales depuradas para riego agrícola es la alternativa de reutilización con más relevancia hoy día, siempre y cuando se desarrolle con garantías sanitarias y medioambientales.Giardia lamblia y Cryptosporidium spp. son dos protozoos patógenos entéricos de amplia distribución ambiental, frecuentes en hábitats acuáticos. La investigación y detección de estos parásitos en aguas ha adquirido importancia en los últimos años debido a que poseen formas de dispersión resistentes a los tratamientos habituales, aplicados tanto en procesos de potabilización como de depuración, y a que han sido clasificados como patógenos emergentes causantes de importantes brotes de transmisión hídrica.En este trabajo se estudia la presencia de quistes de Giardia lamblia y ooquistes de Cryptosporidium spp. en el agua residual depurada de la ciudad de Santa Cruz de Tenerife que es transportada hasta el sur de la isla de Tenerife para su reutilización en agricultura. Asimismo se investiga el efecto del transporte, el almacenamiento y el tratamiento avanzado sobre la concentración de quistes y ooquistes a través del sistema, y la existencia de relaciones con otros parámetros bacteriológicos y físico-químicos.Los resultados obtenidos ponen de manifiesto comportamientos variables de los contenidos en quistes y ooquistes frente a los tratamientos aplicados, y el efecto depurador que el transporte a larga distancia, parece tener sobre el agua residual depurada.No se han encontrado relaciones entre las concentraciones de quistes y ooquistes en el agua residual depurada y el contenido de los indicadores tradicionales de contaminación fecal.Treated wastewater use for irrigation is, nowadays, the more relevant reutilization alternative of wastewater, if it is developed with sanitary and environmental warranties.Giardia lamblia and Cryptosporidium spp. two wide distributed enteric pathogen protozoan, which are frequent in aquatic

  11. Neurotransmitter transporters

    DEFF Research Database (Denmark)

    Gether, Ulrik; Andersen, Peter H; Larsson, Orla M

    2006-01-01

    The concentration of neurotransmitters in the extracellular space is tightly controlled by distinct classes of membrane transport proteins. This review focuses on the molecular function of two major classes of neurotransmitter transporter that are present in the cell membrane of neurons and....... Recent research has provided substantial insight into the structure and function of these transporters. In particular, the recent crystallizations of bacterial homologs are of the utmost importance, enabling the first reliable structural models of the mammalian neurotransmitter transporters...

  12. Nitrate dosage system in a reclaimed wastewater pipeline for the inhibition of sulfide build-up; Sistema de dosificacion de nitrato en una conduccion de transporte de agua depurada para evitar la generacion de sulfuro

    Energy Technology Data Exchange (ETDEWEB)

    Monteagudo Perez-Machado, T.; Rodriguez Gomez, L. E.; Alvarez Diaz, M.

    2007-07-01

    During reclaimed wastewater transportation under anaerobic conditions sulfide generation may take place, which should be avoided due to the numerous problems related to it. This is the case of the reclaimed wastewater reuse scheme of Tenerife, one of whose elements is a completely filled 61 km long gravity pipeline, 0,60 m in diameter. In order to avoid the appearance of anaerobic conditions a controlled nitrate dosage system has been designed to be installed at the pipeline inlet, with nitrate dosage to be controlled by the organic matter content of the reclaimed wastewater, using turbidity as an indicator of it. (Author) 26 refs.

  13. Estrategias para negociaciones exitosas.

    OpenAIRE

    José B. Parra V; Evelinda Santiago J.; Misael Murillo M.; Candy Atonal N.

    2010-01-01

    Las estrategias de negociación son herramientas para disminuir conflictos o para intercambiar bienes y servicios. Una negociación exitosa crea relaciones de solidaridad y propicia reciprocidad, cooperación y confianza para quienes tendrán relaciones permanentes de negociación con beneficios para ambas partes. Una estrategia de negociación exitosa requiere manejar el desarrollo del ambiente social del grupo de personas, con la finalidad de tener presente las fronteras que no pueden irrumpirse....

  14. Sustainable Transportation

    DEFF Research Database (Denmark)

    Hall, Ralph P.; Gudmundsson, Henrik; Marsden, Greg

    2014-01-01

    The transportation system is the backbone of economic and social progress and the means by which humans access goods and services and connect with one another. Yet, as the scale of transportation activities has grown worldwide, so too have the negative environmental, social, and economic impacts...... that relate to the construction and maintenance of transportation infrastructure and the operation or use of the different transportation modes. The concept of sustainable transportation emerged in response to these concerns as part of the broader notion of sustainable development. Given the transportation...... sector’s significant contribution to global challenges such as climate change, it is often said that sustainable development cannot be achieved without sustainable transportation....

  15. Carros jaula ferroviarios: determinación de un escalón en diámetro para el reacondicionamiento de sus ejes//Railroad cars for sugar cane transportation: determination of a new level of reconditioning to extend its life

    Directory of Open Access Journals (Sweden)

    Luís Orlando Martín-Carvajal

    2012-12-01

    Full Text Available El transporte por ferrocarril de caña constituye una variante económica y Cuba cuenta con la infraestructura vial para este fin. El trabajo tiene el objetivo de incrementar la vida útil del eje de los carros jaula, usados en el transporte de la caña de azúcar, a partir de escalones en diámetro para el reacondicionamiento en sus muñones. Se determinó el diámetro mínimo permisible en la zona del muñónpara las condiciones más severas de explotación a las que se expone el eje. El cálculo se realizó según las normas ferroviarias, basado en las ecuaciones clásicas de resistencia de los materiales, además del cálculo de tensional y deformacional utilizando el Método de Elementos Finitos. Los resultados permiten concluir que la propuesta de establecer el diámetro mínimo de 95,25 mm cumple con las condiciones necesarias de resistencia, obteniéndose un coeficiente de reserva dentro del rango establecido por las normas ferroviarias.Palabras claves: ferrocarril, eje, muñón, elementos finitos._______________________________________________________________________________AbstractThe railway transportation of sugar cane is an economic variant and Cuba has the railroad infrastructure for this purpose. This paper deals with the shaft exploitation period increasing for the sugar cane cars, by obtaining a new reduced dimension in the stump diameter, under the most hard exploitation conditions.The calculation was carried out according to the railway standards, based on the Strength of Materials classic equations. The tensional and deformational level was also obtained, by using the Finite Element Method. The authors conclude that the minimal proposed diameter 95,25 mm responds to the necessary strength conditions, with a security coefficient, according to the required railway standards.Key words: railroad, shaft, stump, finite element.

  16. Preliminary technical and economic viability for the implantation of fluvial transport of CNG (Compressed Natural Gas) for barges in Amazon Region; Avaliacao preliminar de viabilidade tecnico-economica para implantacao de transporte fluvial de GNC (Gas Natual Comprimido) por barcacas na Regiao Amazonica

    Energy Technology Data Exchange (ETDEWEB)

    Araujo, Marcos C.C. de; Porto, Paulo L. Lemgruber [Interocean Engenharia e Ship Management, Rio de janeiro, RJ (Brazil); Cunha, Rafael H. da [Metro Rio, RJ (Brazil); Garcia, Rafael M. [Pic Brasil (Brazil); Almeida, Marco A.R. de [Universidade Gama Filho (UGF), Rio de Janeiro, RJ (Brazil)

    2004-07-01

    The isolated regions of the Amazon present difficulties for integration with the electrical system which is creating some economic problems due to the consequent costs of electric generation of subsidies as a function of the fossil fuel use as oils diesel and fuel. A viable option is the use of Natural Gas - NG that is Also available in the region. Its modal of transport possible in the Region North they are for gas-lines or barges. The Compressed Natural Gas transport is distinguished that - CNG for barges was still not tested operationally in Brazil. Soon, to develop a Preliminary Study of Viability Technician - Economic - SVTE for the implantation of fluvial transport of CNG between the cities of Coari and Manaus is basic, therefore it is created strategical alternative for the electric generation in this region. The electric sector, the characteristics of the NG and the transport in this region had been analyzed to support to the work. The gas line and the fluvial transport of CNG for barges in this region are not conflicting, and they in a complementary form can act. The SVTE presented a Liquid Present Value and Internal Tax of very attractive Return justifying its implantation. (author)

  17. Subvenciones para instituciones Directrices para gastos de ...

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

    IDRC CRDI

    División de Administración de Subvenciones ... En la Parte 2 del Acuerdo de Subvención estándar de IDRC se incluyen los límites ... pagar los costos de sustitución (tiempo libre para personal académico) de los investigadores principales.

  18. Main aspects in licensing of a type B(U) package design for the transport of 12.95 PBq of cobalt 60; Aspectos relevantes del licenciamiento en Argentina de un modelo de bulto tipo B(U) para transporte de 12,95 PBq de cobalto 60

    Energy Technology Data Exchange (ETDEWEB)

    Lopez Vietri, J R; Novo, R G; Bianchi, A J

    1996-12-31

    This paper points out the relevant technical issues related to the licensing process, of a type B(U) package design, with cylindrical form and 9.3 ton mass, approved by the Argentine Competent Authority for the transport of 12.95 PBq of cobalt 60 as special form radioactive material. It is briefly described the heat transfer analysis, the structural performance under impulsive loads and the shielding calculation under both normal and accidental conditions of transport, as well as the comparative analysis of the results obtained from design, pre-operational tests and independent evaluation performed by the Argentine Competent Authority to verify the compliance with the Regulations for the Safe Transport of Radioactive Material of the International Atomic Energy Agency. (author). 14 refs., 1 fig., tabs.

  19. Nuclear transport

    International Nuclear Information System (INIS)

    Anon.

    2003-01-01

    During january and february 2003, a unique event concerning nuclear transport was reported and rated 1 on the INES scale. This event concerns the absence of a maintenance operation on a shipping cask. This shipping cask was used for several years for nuclear transport inside La-hague site before being re-assigned to transport on public thoroughfare. The re-assignment of the cask should have been preceded and conditioned by a maintenance operation whose purpose is to check the efficiency of its radiation shield. During this period 2 on-site inspections concerning the transport of nuclear materials were performed. (A.C.)

  20. Ocean transportation

    National Research Council Canada - National Science Library

    Frankel, Ernst G; Marcus, Henry S

    1973-01-01

    .... This analysis starts with a review of ocean transportation demand and supply including projections of ship capacity demand and world shipbuilding capacity under various economic and political assumptions...

  1. Identificando os desafios e as boas práticas para o transporte urbano de cargas, por meio de uma revisão bibliográfica sistemática

    Directory of Open Access Journals (Sweden)

    Cintia Machado Oliveira

    2016-12-01

    Full Text Available This purpose of this paper is to identify, through a systematic literature review, the challenges faced in urban freight transportation and best practices that could be implemented in the field, considering social and environmental aspects. The research also identifies the actors (in public and private sectors which could be responsible for implementing such practices. Moreover, the paper proposes a procedure for conducting systematic literature reviews, established exclusively for this study. The conclusions identify 26 best practices capable of supporting the solution of 16 challenges. Results indicate that 31% of these challenges could be solved by public actors, 44% by the private sector and 25% of them by both agents, working, respectively, in 27%, 65% and 8% of the practices. Besides, it was identified that 81% of the best practices can contribute positively, considering economic aspects. The research was limited to scientific papers. Therefore, it is recom-mended that future studies consider a field survey to confirm that the challenges and good practices identified are part of the reality of cities.

  2. Controlador Inteligente De Transporte

    Directory of Open Access Journals (Sweden)

    Alejandro J. Cabrera Sarmiento

    2011-03-01

    Full Text Available Normal 0 21 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} En el presente trabajo se expone la concepción, desarrollo e implementación de un Controlador Inteligente de Transporte, el cual se encarga del control de una intersección semaforizada. La estructura hardware del controlador ha sido dividida en dos clases de tarjetas: las Tarjetas de Luces, encargadas de activar las señales para las indicaciones en una intersección (luces, sonido, etc. y la Tarjeta de Control, encargada del control de la intersección gobernando hasta cuatro tarjetas de luces con las cuales se comunica, así como de establecer comunicación con un nivel jerárquico superior. Ambas tarjetas han sido desarrolladas en base a microcontroladores de 8 bits de Microchip. El firmware de ambos tipos de tarjetas ha sido desarrollado y puesto a punto utilizando PIC C de CCS. El desarrollo de este controlador, de prestaciones superiores a los existentes actualmente en el país, permite su inserción en un Sistema Inteligente de Transporte (SIT que se encuentra en fase de desarrollo.

  3. Neutron transport

    International Nuclear Information System (INIS)

    Berthoud, Georges; Ducros, Gerard; Feron, Damien; Guerin, Yannick; Latge, Christian; Limoge, Yves; Santarini, Gerard; Seiler, Jean-Marie; Vernaz, Etienne; Coste-Delclaux, Mireille; M'Backe Diop, Cheikh; Nicolas, Anne; Andrieux, Catherine; Archier, Pascal; Baudron, Anne-Marie; Bernard, David; Biaise, Patrick; Blanc-Tranchant, Patrick; Bonin, Bernard; Bouland, Olivier; Bourganel, Stephane; Calvin, Christophe; Chiron, Maurice; Damian, Frederic; Dumonteil, Eric; Fausser, Clement; Fougeras, Philippe; Gabriel, Franck; Gagnier, Emmanuel; Gallo, Daniele; Hudelot, Jean-Pascal; Hugot, Francois-Xavier; Dat Huynh, Tan; Jouanne, Cedric; Lautard, Jean-Jacques; Laye, Frederic; Lee, Yi-Kang; Lenain, Richard; Leray, Sylvie; Litaize, Olivier; Magnaud, Christine; Malvagi, Fausto; Mijuin, Dominique; Mounier, Claude; Naury, Sylvie; Nicolas, Anne; Noguere, Gilles; Palau, Jean-Marc; Le Pallec, Jean-Charles; Peneliau, Yannick; Petit, Odile; Poinot-Salanon, Christine; Raepsaet, Xavier; Reuss, Paul; Richebois, Edwige; Roque, Benedicte; Royer, Eric; Saint-Jean, Cyrille de; Santamarina, Alain; Serot, Olivier; Soldevila, Michel; Tommasi, Jean; Trama, Jean-Christophe; Tsilanizara, Aime; Behar, Christophe; Provitina, Olivier; Lecomte, Michael; Forestier, Alain; Bender, Alexandra; Parisot, Jean-Francois; Finot, Pierre

    2013-10-01

    This bibliographical note presents a reference book which addresses the study of neutron transport in matter, the study of conditions for a chain reaction and the study of modifications of matter composition due to nuclear reactions. This book presents the main nuclear data, their measurement, assessment and processing, and the spallation. It proposes an overview of methods applied for the study of neutron transport: basic equations and their derived forms, deterministic methods and Monte Carlo method of resolution of the Boltzmann equation, methods of resolution of generalized Bateman equations, methods of time resolution of space kinetics coupled equations. It presents the main calculation codes, discusses the qualification and experimental aspects, and gives an overview of neutron transport applications: neutron transport calculation of reactors, neutron transport coupled with other disciplines, physics of fuel cycle, criticality

  4. Diseño de un sistema de diagnóstico para la instalación motriz diésel de los carros de transporte en explotación; Design of Diagnosis System for the Installation Motive Diesel of the Cars of Transport in Exploitation

    Directory of Open Access Journals (Sweden)

    Luis García Abreu

    2011-02-01

    Full Text Available Se desarrolla la metodología propuesta para el diagnóstico integral en el diseño de un sistema de diagnósticopara las instalaciones motrices diésel de los vehículos en explotación con la finalidad de conocer el estado ocondición de las mismas. De especial interés resulta la obtención del período de muestreo a partir de elementosde riesgo. Es de destacar que este artículo viene precedido por otro sobre la caracterización del sistema actualde diagnóstico establecido para ellas.  In the following work the authors develop the methodology proposed by the Integral diagnosis in the design of adiagnosis system for the installation motive diesel of the vehicles in exploitation with the purpose of knowing thestate or condition of the same ones. Of special interest it is the obtaining their period of sampling starting fromelements of risk. It is of to highlight that this article comes preceded by another envelope the characterization ofthe current system of diagnosis settled down in them.

  5. Animal Transports

    Directory of Open Access Journals (Sweden)

    Diana Ludrovcová

    2016-08-01

    Full Text Available Purpose and Originality: The research is aimed to the animal transports issue, from two points of view – first is the animal cruelty and second is the policy and economic consideration. The goal is to acquaint the readers with the transports risks and its cruelty and evaluation of the economic, political aspects for he involved countries. The study is oriented on more points of view, what is rare in works with a similar theme. Method: This paper examines many issues and examinations from different authors and subsequently summarized the findings with authors own knowledge to one expanded unit. Results: Results proves, that livestock transports have negative impact on animal´s health, environment. Number of transported animals is rising every year. Society: Research familiarize the society with the animal transports, cruelty against animals during them, and influence of transports on some countries, their economy, policy. People get better informed and can form their own opinion on this topic. They may start acting, undertaking some steps to improve the present situation, what could help a lot to animals and environment. Limitations / further research: Future research could show progress and improvement of transports, quality of food supply and economics.

  6. Oro para Colombia

    OpenAIRE

    Rubio Forero, María Claudia

    2016-01-01

    Las mujeres han debido atravesar un largo camino partiendo de la discriminación hasta empezar un proceso de equidad en la sociedad y en el deporte, de esta manera llegar a ser parte de un evento como los Juegos Olímpicos. Esta tesis toma el caso de tres atletas colombianas y describe su proceso de formación para lograr dos medallas de oro para el país.

  7. Numerical model to simulate the isotopic and heat release and transport through the geosphere from a geological repository of radioactive wastes; Un modelo numerico para la simulacion de transporte de calor y liberacion de materia en un almacenamiento profundo de residuos radiactivos

    Energy Technology Data Exchange (ETDEWEB)

    Hidalgo Lopez, A [Universidad Politecnica de Madrid (Spain)

    2002-07-01

    The aim of this research is to simulate the isotopic and heat release and transport through the geosphere, from a geological repository of high level nuclear waste. in order to achieve it, different physical processes, that have to do with the problem, are considered: groundwater flow, radioactive decay, nuclide dissolution in groundwater, heat generation, mass and heat transport. Some of these phenomena are related among the, which allows to build a coupled model,which is the starting point to generate a FORTRAN code. The flow and transport models are developed in two spatial dimensions and are integrated in space by means of a finite volume method. The time integration is fulfilled by a {theta}-method. Moreover, the advection-diffusion equation is solved by two finite volume techniques. In the first one a linear interpolation is used whereas in the second it is used a quadratic one. Also, a consistency an stability study of both methods is carried out in order to compare their stability zones and the errors appearing. Stability is analysed by applying the von Neumann method, which is based upon Fourier series. Although it is a classical technique when dealing with finite-difference schemes, it is here applied to two finite volume schemes. (Author)

  8. Estrategias para negociaciones exitosas.

    Directory of Open Access Journals (Sweden)

    José B. Parra V

    2010-01-01

    Full Text Available Las estrategias de negociación son herramientas para disminuir conflictos o para intercambiar bienes y servicios. Una negociación exitosa crea relaciones de solidaridad y propicia reciprocidad, cooperación y confianza para quienes tendrán relaciones permanentes de negociación con beneficios para ambas partes. Una estrategia de negociación exitosa requiere manejar el desarrollo del ambiente social del grupo de personas, con la finalidad de tener presente las fronteras que no pueden irrumpirse. Otro aspecto importante, es el lenguaje corporal utilizado por las personas y las tácticas que se practican. El manejo de esta información permite diseñar diferentes modelos de negociaciones para cada caso específico. Este documento propone la utilización de la herramienta MONACO, diseñada por los autores, que es un software útil para encontrar los mejores tácticas posibles dentro de una negociación; basándose en el lenguaje corporal que muestra el negociante oponente durante cada oferta monetaria. El uso de este software da al negociador la oportunidad de manejar las negociaciones con mayor control, el negociador que usa el software puede elegir una estrategia de acuerdo a las relaciones que espera mantener con el negociador oponente.

  9. Ocean transportation

    National Research Council Canada - National Science Library

    Frankel, Ernst G; Marcus, Henry S

    1973-01-01

    .... The discussion of technology considers the ocean transportation system as a whole, and the composite subsystems such as hull, outfit, propulsion, cargo handling, automation, and control and interface technology...

  10. Ocean transportation

    National Research Council Canada - National Science Library

    Frankel, Ernst G; Marcus, Henry S

    1973-01-01

    .... In ocean transportation economics we present investment and operating costs as well as the results of a study of financing of shipping. Similarly, a discussion of government aid to shipping is presented.

  11. Nicaragua - Transportation

    Data.gov (United States)

    Millennium Challenge Corporation — The evaluation examines impacts of the Transportation Project in three ways. First, we calculate economic rates of return associated with reduced user costs for each...

  12. Sediment Transport

    DEFF Research Database (Denmark)

    Liu, Zhou

    Flow and sediment transport are important in relation to several engineering topics, e.g. erosion around structures, backfilling of dredged channels and nearshore morphological change. The purpose of the present book is to describe both the basic hydrodynamics and the basic sediment transport...... mechanics. Chapter 1 deals with fundamentals in fluid mechanics with emphasis on bed shear stress by currents, while chapter 3 discusses wave boundary layer theory. They are both written with a view to sediment transport. Sediment transport in rivers, cross-shore and longshore are dealt with in chapters 2......, 4 and 5, respectively. It is not the intention of the book to give a broad review of the literature on this very wide topic. The book tries to pick up information which is of engineering importance. An obstacle to the study of sedimentation is the scale effect in model tests. Whenever small...

  13. MEAPA - Integrated methodology for alternative energy sources map pin in the State of Para - Brazil; MEAPA - Metodologias integradas para o mapeamento de energias alternativas no Estado do Para

    Energy Technology Data Exchange (ETDEWEB)

    Monteiro, Claudio; Lopes, J. Pecas; Va, Kowk P.; Herold, Helmut [Instituto de Engenharia de Sistemas e Computadores (INESC), Porto (Portugal). Power System Unit. E-mail: cmonteiro@inescn.pt; Rocha, Brigida; Pinheiro, Helten; Rocha, Olavo [Para Univ., Belem, PA (Brazil). Dept. de Engenharia Eletrica. E-mail: rocha@interconect.com.br; Silva, Isa O. [Para Univ., Belem, PA (Brazil). Dept. de Meteorologia; Moraes, Sinfronio [Para Univ., Belem, PA (Brazil). Dept. de Mecanica

    1999-07-01

    This paper describes the MEAPA project for the development of methodologies which support the renewable energy sources integration in the Marajo island - Para - Brazil. The methodologies used will be described including the construction of a geographical database, renewable resources (wind, solar and biomass) mapping, transport costs, cost of electric power produced by various systems and electrification sceneries and comparison of electrification solutions.

  14. RF transport

    International Nuclear Information System (INIS)

    Choroba, Stefan

    2013-01-01

    This paper deals with the techniques of transport of high-power radiofrequency (RF) power from a RF power source to the cavities of an accelerator. Since the theory of electromagnetic waves in waveguides and of waveguide components is very well explained in a number of excellent text books it will limit itself on special waveguide distributions and on a number of, although not complete list of, special problems which sometimes occur in RF power transportation systems. (author)

  15. Transport of radioactive materials and equipment. Requirements. (Provisional)

    International Nuclear Information System (INIS)

    1983-01-01

    This standard is aimed at establishing the procedures that must be followed when transporting radioactive materials and equipment in Venezuelan Territory. The ''Consejo Nacional para el Desarrollo de la Industria Nuclear'' is responsible for their fulfillment and control

  16. Analysis of production models and hydrogen supply for urban collective transportation buses: a case study at Foz do Iguacu; Analise de modelos de producao e abastecimento de hidrogenio para onibus de transporte coletivo urbano: estudo de caso em Foz do Iguacu

    Energy Technology Data Exchange (ETDEWEB)

    Riveros-Godoy, Gustavo [Universidade Nacional de Assuncao (Paraguay). Faculdade de Ciencias Quimicas]. E-mail: riveros@qui.una.py; Cavaliero, Carla; Peres, Ennio [Universidade Estadual de Campinas (UNICAMP), SP (Brazil). Faculdade de Engenharia Mecanica

    2008-07-01

    Even though technical-economical barriers still exist for the development of an economy based in the hydrogen, these difficulties are opportunities for the appearance of new business of goods and services, energetic matrix diversification, focusing of researches activities, development and support to provide sustainability to the new economy. This study presents the technical-economical comparison of hydrogen production and supply models, using the so-called Spilled Turbinable Energy of the Itaipu Hydroelectric Power Plant and available for the transport sector. The substitution of the urban collective diesel bus fleet with fuel cell buses in Foz do Iguacu city was used as a case study in this work. (author)

  17. CFD analysis for the hydrogen transport in the primary contention of a BWR using the codes OpenFOAM and Gas-Flow; Analisis CFD para el transporte de hidrogeno en la contencion primaria de un reactor BWR usando los codigos OpenFOAM y GasFlow

    Energy Technology Data Exchange (ETDEWEB)

    Jimenez P, D. A.

    2014-07-01

    The accidents in Unit 2 of the Three Mile Island Nuclear Power Plant (NPP) in the United States (March 28{sup th}, 1979), the one in Unit 4 of the NPP Chernobyl in Ukraine (April 26{sup th}, 1986) and the explosions in some units of Fukushima NPP in Japan (March 11{sup th}, 2011) boosted the investigations on severe accidents with core damage and, in particular, the threat to the ultimate barrier by an eventual explosion from uncontrolled Hydrogen combustion within the containment was considered of particular relevance. Research programs for analyzing Hydrogen behavior and control during this kind of accidents were early initiated by research and regulatory bodies. Assessment on Hydrogen behavior once it has been postulated to be released on the containment system can be divided into two phases, in the first one, transport and the concentrations of the gas mixtures and steam in each volume or area comprised between the structures of the containment are calculated, in the second one, the propagation of the detonation of the Hydrogen is calculated if there are the conditions to occur. Currently, there are computer programs that can be used in one, or both stages of computation, and they are based on one of the two solution methods in current use, one of them are integrated codes (e.g. MELCOR), which consists in assuming the containment as a network composed of hydraulic tanks or nodes on which the balance equations of mass and energy have to be solved, the network is connected by ducts or connections where the momentum balance equation arise. This methodology relies on the use of semi-empirical relationships and the criteria used to define a geometric pattern, are subjective. The second method, which is having relevance due to the large computing power of modern computers, is the numerical solution of the three-dimensional Navier-Stokes equations in complex geometries. This method of solution is known as Computational Fluid Dynamics (CFD), and offers the advantage of

  18. Orbital transport

    International Nuclear Information System (INIS)

    Oertel, H. Jr.; Koerner, H.

    1993-01-01

    The Third Aerospace Symposium in Braunschweig presented, for the first time, the possibility of bringing together the classical disciplines of aerospace engineering and the natural science disciplines of meteorology and air chemistry in a european setting. In this way, aspects of environmental impact on the atmosphere could be examined quantitatively. An essential finding of the european conference, is the unrestricted agreement of the experts that the given launch frequencies of the present orbital transport result in a negligible amount of pollutants being released in the atmosphere. The symposium does, however, call attention to the increasing need to consider the effect of orbital and atmospheric environmental impact of a future increase in launch frequencies of orbital transport in connection with future space stations. The Third Aerospace Symposium, 'Orbital Transport, Technical, Meteorological and Chemical Aspects', constituted a first forum of discussion for engineers and scientists. Questions of new orbital transport technologies and their environmental impact were to be discussed towards a first consensus. Through the 34 reports and articles, the general problems of space transportation and environmental protection were addressed, as well as particular aspects of high temperatures during reentry in the atmosphere of the earth, precision navigation of flight vehicles or flow behavior and air chemistry in the stratosphere. (orig./CT). 342 figs

  19. Tiempo para un cambio

    Science.gov (United States)

    Woltjer, L.

    1987-06-01

    En la reunion celebrada en diciembre dei ano pasado informe al Consejo de mi deseo de terminar mi contrato como Director General de la ESO una vez que fuera aprobado el proyecto dei VLT, que se espera sucedera hacia fines de este aAo. Cuando fue renovada mi designacion hace tres aAos, el Consejo conocia mi intencion de no completar los cinco aAos dei contrato debido a mi deseo de disponer de mas tiempo para otras actividades. Ahora, una vez terminada la fase preparatoria para el VLT, Y habiendose presentado el proyecto formalmente al Consejo el dia 31 de marzo, y esperando su muy probable aprobacion antes dei termino de este ano, me parece que el 10 de enero de 1988 presenta una excelente fecha para que se produzca un cambio en la administracion de la ESO.

  20. Composite reinforced alumina ceramics with titan and lantana for use in coating storage tanks and transport of crude oil; Composito de ceramica alumina reforcada com titania e lantana para a utilizacao em revestimento de tanques de armazenamento e transporte de petroleo cru

    Energy Technology Data Exchange (ETDEWEB)

    Mendes, C.E.; Rego, S.A.B.C.; Oliveira, J.C.S.; Ferreira, R.A. Sanguinetti; Yadava, Y.P., E-mail: cata_esposito@hotmail.com [Universidade Federal de Pernambuco (UFPE), PE (Brazil). Centro de Tecnologia e Geociencia. Departamento de Engenharia Mecanica

    2011-07-01

    The objective of this work is to use ceramics to improve the performance of the tanks that store and transport crude oil and which use metallic materials for their manufacture. These tanks in contact with crude oil undergo a process of degradation on their surfaces, since crude oil is a highly corrosive substance. And in turn ceramic materials have good stability in hostile environments. However, they are inherently fragile for display little plastic deformation. Therefore, the choice of a ceramic composite alumina-titania-lantana has high mechanical strength and high toughness which were produced by thermo-mechanical processing. These composites were sintered at 1350 ° C for 36 hours, and it was held Vickers hardness testing and microstructural characterization to assess their surfaces before and after the attack by crude to use such material as ceramic coating. These results will be presented at the congress. (author)

  1. Labbtex: Toolbox para generación de informes en LATEX para Matlab

    Directory of Open Access Journals (Sweden)

    José Luis Almazán Gárate

    2012-10-01

    Full Text Available En este artículo se presenta el software desarrollado por el Equipo H3lite dentro del Departamento de Ingeneniería Civil. Transportes de la Escuela de Ingenieros de Caminos, Canales y Puertos de la Universidad Politécnica de Madrid para la generación de informes enLATEX mediante el software Matlab® y la integración en sus rutinas, Labbtex.La librería Labbtex proporciona un marco flexible para mezclar texto y código Matlab® para la generación automática de documentos. Un rchivo fuente simple contiene el texto de documentación y el código Matlab, al correr la aplicación se genera un documento final LATEX que contiene el texto, gráficos y tablas indicados con el formato de un documento LATEX. El código Matlab genera un documento LATEX usando la sintaxis. Así, LATEX (para composición de texto de alta calidad y Matlab® (para cálculo matemático pueden usarse simultáneamente. Esto permite la generación de informes en tiempo real con un uso de recursos mínimo.

  2. Avaliação dos fatores de risco laborais e físicos para doenças cardiovasculares em motoristas de transporte urbano de ônibus em Montes Claros (MG Evaluation of labor-related and physical risk factors for cardiovascular disease in drivers of urban transport buses in Montes Claros in the state of Minas Gerais

    Directory of Open Access Journals (Sweden)

    Andréia Farias Alquimim

    2012-08-01

    Full Text Available Este estudo buscou avaliar os fatores de risco para doenças cardiovasculares em motoristas de ônibus em Montes Claros (MG. Foi empregado um questionário semiestruturado abordando dados pessoais, antropométricos, profissionais e laborais; e outro referente ao grau de estresse. Foram pesquisados 53 motoristas de ônibus e a média de idade foi de 30 a 39 anos, e dessa população, 81,1% diziam não ser fumantes, 58% não consumiam bebida alcoólica e 50% praticavam algum tipo de exercício. Na avaliação do IMC 40 motoristas (75,4% estavam com excesso de peso. A prevalência dos hábitos alimentares foi de excesso consumo de açúcar (66,0%, de gordura (64,2%, de café (69,8%, de sal (60,4%, de Coca Cola (64,2% e de refrigerante (54,7%. Dentre os relatos de doenças crônicas não foram observados motoristas diabéticos (98,1% e nem hipertensos (94,3%. A maioria da amostragem, 69,7% teve nível de estresse normal. Em relação aos dados laboratoriais, a grande maioria dos motoristas apresentou hipertrigliceridemia e hipercolesterolemia. Os níveis de HDL estavam satisfatórios, e o de LDL apresentou nível normal e desejável em mais da metade da amostra. A prevalência para doença cardiovascular mostrou-se baixa.The scope of this study was to evaluate risk factors for cardiovascular disease among bus drivers in Montes Claros in the state of Minas Gerais. A semi-structured questionnaire covering personal, anthropometric, professional and labor-related data was used, in addition to a questionnaire on the level of stress. 53 bus drivers were surveyed and the average age was 30 to 39 years of age. 81.1% were non-smokers; 58% of the sample were teetotalers; and 50% took regular exercise. In the assessment of BMI, 40 drivers (75.4% were overweight. The prevalence in eating habits revealed excess consumption of sugar (66.0%, fat (64.2%, coffee (69.8%, salt (60.4%, coca cola (64.2% and soft drinks (54.7%. Among reports of chronic diseases, no

  3. Travel and transport

    DEFF Research Database (Denmark)

    Bill, Jan; Roesdahl, Else

    2007-01-01

    On the interrelationship between travel, transport and society; on land transport, sea and river transport, and on winter transport;  on the related technologies and their developments......On the interrelationship between travel, transport and society; on land transport, sea and river transport, and on winter transport;  on the related technologies and their developments...

  4. Transport system

    NARCIS (Netherlands)

    Drenth, K.F.

    1999-01-01

    The transport system comprises at least one road surface (2) and at least one vehicle (4) on wheels (6). The road surface (2) has a substantially bowl-shaped cross section and the vehicle (4) is designed so that the wheels (6) run directly on the road surface (2) while the road surface (2) acts as a

  5. Optimal transport

    CERN Document Server

    Eckmann, B

    2008-01-01

    At the close of the 1980s, the independent contributions of Yann Brenier, Mike Cullen and John Mather launched a revolution in the venerable field of optimal transport founded by G Monge in the 18th century, which has made breathtaking forays into various other domains of mathematics ever since. The author presents a broad overview of this area.

  6. Nuclear transport

    International Nuclear Information System (INIS)

    Anon.

    2001-01-01

    Here is given the decree (2001/1199) of the 10. of december 2001 relative to the passing of safety rules concerning the maritime transport of spent fuels, plutonium and high-level radioactive wastes contained in packages. (O.M.)

  7. Transport fuel

    DEFF Research Database (Denmark)

    Ronsse, Frederik; Jørgensen, Henning; Schüßler, Ingmar

    2014-01-01

    Worldwide, the use of transport fuel derived from biomass increased four-fold between 2003 and 2012. Mainly based on food resources, these conventional biofuels did not achieve the expected emission savings and contributed to higher prices for food commod - ities, especially maize and oilseeds...

  8. Para-Hermitian and para-quaternionic manifolds

    International Nuclear Information System (INIS)

    Ivanov, S.; Zamkovoy, S.

    2003-10-01

    A set of canonical para-Hermitian connections on an almost para-Hermitian manifold is defined. A Para-hermitian version of the Apostolov-Gauduchon generalization of the Goldberg-Sachs theorem in General Relativity is given. It is proved that the Nijenhuis tensor of a Nearly para-Kaehler manifolds is parallel with respect to the canonical connection. Salamon's twistor construction on quaternionic manifold is adapted to the para-quaternionic case. A locally conformally hyper-para-Kaehler (hypersymplectic) flat structure with parallel Lee form on the Kodaira-Thurston complex surfaces modeled on S 1 x SL (2, R)-tilde is constructed. Anti-self-dual locally conformally hyper-para-Kaehler (hypersymplectic) neutral metrics with non vanishing Weyl tensor are obtained on the Inoe surfaces. An example of anti-self-dual neutral metric which is not locally conformally hyper-para-Kaehler (hypersymplectic) is constructed. (author)

  9. Para-Hermitian and para-quaternionic manifolds

    Energy Technology Data Exchange (ETDEWEB)

    Ivanov, S [University of Sofia ' St. Kl. Ohridski' , Faculty of Mathematics and Informatics, Sofia (Bulgaria) and Abdus Salam International Centre for Theoretical Physics, Trieste (Italy); Zamkovoy, S [University of Sofia ' St. Kl. Ohridski' , Faculty of Mathematics and Informatics, Sofia (Bulgaria)

    2003-10-01

    A set of canonical para-Hermitian connections on an almost para-Hermitian manifold is defined. A Para-hermitian version of the Apostolov-Gauduchon generalization of the Goldberg-Sachs theorem in General Relativity is given. It is proved that the Nijenhuis tensor of a Nearly para-Kaehler manifolds is parallel with respect to the canonical connection. Salamon's twistor construction on quaternionic manifold is adapted to the para-quaternionic case. A locally conformally hyper-para-Kaehler (hypersymplectic) flat structure with parallel Lee form on the Kodaira-Thurston complex surfaces modeled on S{sup 1} x SL (2, R)-tilde is constructed. Anti-self-dual locally conformally hyper-para-Kaehler (hypersymplectic) neutral metrics with non vanishing Weyl tensor are obtained on the Inoe surfaces. An example of anti-self-dual neutral metric which is not locally conformally hyper-para-Kaehler (hypersymplectic) is constructed. (author)

  10. Sistema para producir harina nixtamalizada con transporte de bajo cizallamiento

    OpenAIRE

    Ortega-Moody, Jorge; Morales-Sánchez, Eduardo; Hernández-Román, Miguel Ángel; Ruíz-Torres, Maximiano

    2011-01-01

    La tortilla es el alimento más consumido en México y se produce a partir de masa obtenida por el proceso tradicional de nixtamalización. Este método tiene dos inconvenientes: el primero es la cantidad de agua contaminada que genera (nejayote); el segundo, son los tiempos perdidos, ya que la producción es por lotes. Como consecuencia, se han desarrollado métodos continuos que se basan principalmente en la extrusión. Mediante la extrusión con calor, el producto se convierte en un fluido pseudop...

  11. Nuclear transport

    International Nuclear Information System (INIS)

    Anon.

    2002-01-01

    During September and October 2001, 1 event has been reported and classified at the first level of the INES scale. This incident concerns the violation of the European regulation that imposes to any driver of radioactive matter of being the holder of a certificate asserting that he attended a special training. During this period, 13 in-site inspections have been made in places related to nuclear transport. (A.C.)

  12. ParaChoice Model.

    Energy Technology Data Exchange (ETDEWEB)

    Heimer, Brandon Walter [Sandia National Lab. (SNL-CA), Livermore, CA (United States); Levinson, Rebecca Sobel [Sandia National Lab. (SNL-CA), Livermore, CA (United States); West, Todd H. [Sandia National Lab. (SNL-CA), Livermore, CA (United States)

    2017-12-01

    Analysis with the ParaChoice model addresses three barriers from the VTO Multi-Year Program Plan: availability of alternative fuels and electric charging station infrastructure, availability of AFVs and electric drive vehicles, and consumer reluctance to purchase new technologies. In this fiscal year, we first examined the relationship between the availability of alternative fuels and station infrastructure. Specifically, we studied how electric vehicle charging infrastructure affects the ability of EVs to compete with vehicles that rely on mature, conventional petroleum-based fuels. Second, we studied how the availability of less costly AFVs promotes their representation in the LDV fleet. Third, we used ParaChoice trade space analyses to help inform which consumers are reluctant to purchase new technologies. Last, we began analysis of impacts of alternative energy technologies on Class 8 trucks to isolate those that may most efficaciously advance HDV efficiency and petroleum use reduction goals.

  13. Universidades accesibles para todos

    Directory of Open Access Journals (Sweden)

    Roxana Stupp Kupiec

    2001-01-01

    Full Text Available Este trabajo pretende hacer conciencia sobrelos factores que inciden en la construcción colectiva deuniversidades dispuestas a innovar y transformar suideología, sus políticas, el currículum, los servicios estu-diantiles, la infraestructura física y administrativa y lasestrategias de comunicación e información, bajo el para-digma de la accesibilidad en el entorno. Se hace referen-cia al marco legal internacional y nacional que orientalas acciones que deben planificarse e implementarse enlas instituciones de Educación Superior.En la construcción de universidades accesibles para to-dos se requiere de un cambio en la concepción curricu-lar. Se analizan conceptos como la flexibilidad en la for-mación y el acceso a los planes de estudio para respondera las necesidades educativas de todos los estudiantes. Para promover estas transformaciones se proponen prin-cipios y prácticas tales como la interdisciplinareidad y lainclusión del tema de la discapacidad en todas las carre-ras. Además, se presentan ejemplos de aplicación en dife-rentes áreas del perfil profesional, en la formación deldocente universitario y en actividades de proyección so-cial, vida estudiantil e investigación. En el ámbito estu-diantil, se describen algunos servicios y procesos que sehan desarrollado en la Universidad de Costa Rica

  14. Educando para la ignorancia

    Directory of Open Access Journals (Sweden)

    Miguel Durán

    1996-06-01

    Full Text Available Más que describir una situación particular, los autores buscan con este escrito motivar al estudiante para que asuma posiciones críticas; así como dar un campanazo de alerta a los profesores, en relación a los conocimientos que transmiten a sus alumnos y la forma en que lo hacen; todo con el ánimo de generar verdaderos espacios de reflexión en la universidad.

  15. Proposta de metodologia para avaliação de redes de voz sobre IP

    OpenAIRE

    Vandersilvio da Silva

    2006-01-01

    A redução de custo com telefonia através do uso de voz sobre IP tem disparado a busca de soluções que transformem redes IP originalmente dedicadas a transporte de dados em redes para transporte de voz. Esta dissertação tem por objetivo apresentar uma metodologia para sistematizar a avaliação de redes para o tráfego de voz sobre IP de acordo com as possibilidades disponíveis no cenário a ser avaliado. Inicialmente é dada uma visão geral de voz sobre IP, apresentando os protocolos utilizados, o...

  16. INICIATIVAS PARA EL CAMBIO

    Directory of Open Access Journals (Sweden)

    César Alfonso Defrancisco-Larrañaga

    2013-07-01

    Full Text Available El planeta no atraviesa por su mejor momento en materia de conservación y renovación de sus recursos naturales. Claramente en los últimos tiempos los recursos hídricos han venido haciéndose cada vez menores; el hombre ha notado con preocupación y vivido en carne propia este fenómeno, que de no ser tratado a tiempo, podría atentar contra la existencia misma. Esto lo ha alentado a buscar métodos que sirvan como solución para contrarrestar éste mal y crear conciencia entre sus iguales, para así poder garantizar su permanencia y la de su entorno durante muchas generaciones. En países desarrollados del continente europeo y en algunos lugares de América del norte, el uso de sistemas de reutilización y tratamiento de aguas grises y aprovechamiento de las aguas lluvias se ha convertido en una constante y nos están dando las pautas para poder seguir el ejemplo y así de esta manera poder aportar a la causa ambiental y a su vez crear un ahorro en nuestros gastos mensuales de consumo.

  17. Michigan transportation facts & figures : public transportation

    Science.gov (United States)

    2002-08-16

    This on-line document is part of a series, Transportation Facts & Figures, by the Michigan Department of Transportation (MDOT). The Public Transit section of Transportation Facts & Figures cover such topics as intercity bus service, intercity rail se...

  18. Analysis of transport administrators and sustainable transport ...

    African Journals Online (AJOL)

    Analysis of transport administrators and sustainable transport development in Lagos, Ogun and Oyo States, Nigeria. ... A good transportation system planning and management is considered vital for ... EMAIL FULL TEXT EMAIL FULL TEXT

  19. Transporter Classification Database (TCDB)

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Transporter Classification Database details a comprehensive classification system for membrane transport proteins known as the Transporter Classification (TC)...

  20. Transport and health: a look at three Latin American cities Transporte y salud: una mirada a tres ciudades latinoamericanas Transporte e saúde: um olhar sobre três cidades latino-americanas

    Directory of Open Access Journals (Sweden)

    Veronica Dujon

    2013-04-01

    Full Text Available Transport is associated with environmental problems, economic losses, health and social inequalities. A number of European and US cities have implemented initiatives to promote multimodal modes of transport. In Latin America changes are occurring in public transport systems and a number of projects aimed at stimulating non-motorized modes of transport (walking and cycling have already been implemented. Based on articles from peer-reviewed academic journals, this paper examines experiences in Bogotá (Colombia, Curitiba (Brazil, and Santiago (Chile, and identifies how changes to the transport system contribute to encourage active transportation. Bus rapid transit, ciclovias, bike paths/lanes, and car use restriction are initiatives that contribute to promoting active transportation in these cities. Few studies have been carried out on the relationship between transport and physical activity. Car ownership continues to increase. The public health sector needs to be a stronger activist in the transport policy decision-making process to incorporate health issues into the transport agenda in Latin America.El transporte está asociado con problemas ambientales, pérdidas económicas, salud poblacional e inequidades sociales. En ciudades de Europa y Estados Unidos hay iniciativas para promover el transporte multimodal. En Latinoamérica hay proyectos en curso para cambiar los sistemas de transporte y estimular el transporte no motorizado (caminar y montar bicicleta. Basada en una revisión de artículos publicados en revistas académicas, se identifica de qué forma los cambios en el transporte en Bogotá (Colombia, Curitiba (Brasil y Santiago (Chile han contribuido a promover el transporte activo. A pesar que en estas tres ciudades se están implementando iniciativas para promover el transporte activo (sistema de autobuses articulados, ciclovías, ciclorutas, y restricciones para el uso del coche particular, pocos estudios han sido desarrollados sobre

  1. Energy transport

    International Nuclear Information System (INIS)

    Anon.

    1982-01-01

    The measurement of primary interaction cross sections and the incorporation of these data into Monte Carlo calculations provide detailed information about the initial spatial distribution of absorbed dose. Our theoretical energy transport studies have focused on the use of this information to predict the evolution of chemical species formed as a result of the energy deposition. This effort has led to a stochastic approach to diffusion kinetics that can account for the influence of track structure on the yield of free radicals in the radiolysis of water. Fluorescence studies with pulsed alpha particle and proton beams provided the first experimental test of our stochastic model of tract structure effects. Our experimental studies use time-resolved emission spectroscopy to investigate the mechanism of energy transport in nonpolar liquids. Studies of the concentration dependence of time-resolved emission from solutions of benzene in cyclohexane also show the importance of using low benzene concentrations to minimize the influence of benzene dimers on the emission kinetics

  2. para mejorar el %R

    Directory of Open Access Journals (Sweden)

    Alfredo Díaz Mata

    2001-01-01

    Full Text Available En este trabajo se revisan dos indicadores técnicos bursátiles que están estrechamente relacionados, el oscilador estocástico %K de Lane y el oscilador %R de Williams; asimismo, se evalúa el uso de dos mecanismos asociados con el primero y que no suelen utilizarse con el %R: el proceso de frenado (slowing y el uso de un promedio móvil del propio oscilador estocástico como disparadores de señales de compra y de venta. Realizando simulaciones con 27 acciones y el Índice de Precios y Cotizaciones de la Bolsa Mexicana de Valores se verifica la hipótesis principal y se comprueba que, efectivamente, en muchos casos, el uso del proceso de frenado con el oscilador %R de Williams permite tomar mejores decisiones. Por otro lado, se concluye que de los dos disparadores de señales el que mejor funciona, tanto para %K como para %R es el uso de cotas inferior y superior. Este artículo surgió en el curso de una investigación sobre el análisis técnico bursátil de acciones que se puede realizar en su totalidad por computadora y que, esencialmente, excluye el análisis gráfico. Uno de los propósitos del estudio es determinar si es posible, y bajo qué mecanismos, establecer un sistema de análisis bursátil que le permita al inversionista tomar decisiones de inversión en acciones en la Bolsa Mexicana de Valores sin tener que emplear la considerable cantidad de tiempo que es necesario para el análisis gráfico tradicional. Durante este estudio se realizó un análisis preliminar de unos 120 indicadores técnicos para, por un lado, conocerlos con cierto detalle y, por otra parte, aislar aquellos que prometían ser de utilidad para el objetivo de la investigación. Fue en este proceso cuando se detectó que existen dos indicadores que están relacionados y que permiten un análisis por separado que tiene, cuando menos, dos ventajas. En primer lugar está el placer que da a quien gusta de estos temas encontrarse con indicadores que, de acuerdo

  3. Inmunopotenciadores para la acuicultura

    Directory of Open Access Journals (Sweden)

    Rocmira Pérez

    2014-04-01

    Full Text Available La acuicultura es una de las actividades económicas de mayor crecimiento para la producción de alimentos. Uno de sus principales retos es la obtención de grandes volúmenes de producción con la mayor calidad posible. Esto conlleva a una reducción de la aplicación de antibióticos y productos quimioterapéuticos. Una de las estrategias más prometedoras es la aplicación de inmunopotenciadores, principalmente en los cultivos intensivos. El objetivo de este trabajo fue revisar los principales inmunopotenciadores, así como las tendencias y retos de su uso mundial. Se resumen las particularidades moleculares y funcionales de los mismos y se hace énfasis en los más estudiados: levamisol, ß-glucanos, lipopolisacárido, vitamina C, extractos de plantas y hormonas. Todos estos compuestos de naturaleza heterogénea inciden mayoritariamente en los componentes de la inmunidad innata de los peces, fortaleciendo y potenciando la resistencia a enfermedades; adicionalmente algunos de ellos tienen funciones antiestrés y favorecen su crecimiento. Se concluye que los inmunopotenciadores constituyen una estrategia viable para reducir las pérdidas por problemas sanitarios en el sector de la acuicultura; pero aún quedan por solucionar aspectos como la vía de administración y la etapa de inmunización adecuada para cada especie y tipo de cultivo.

  4. National transportation statistics 2011

    Science.gov (United States)

    2011-04-01

    Compiled and published by the U.S. Department of Transportation's Bureau of Transportation Statistics : (BTS), National Transportation Statistics presents information on the U.S. transportation system, including : its physical components, safety reco...

  5. National Transportation Statistics 2008

    Science.gov (United States)

    2009-01-08

    Compiled and published by the U.S. Department of Transportations Bureau of Transportation Statistics (BTS), National Transportation Statistics presents information on the U.S. transportation system, including its physical components, safety record...

  6. State Transportation Statistics 2012

    Science.gov (United States)

    2013-08-15

    The Bureau of Transportation Statistics (BTS), a part of the U.S. Department of Transportation's (USDOT) Research and Innovative Technology Administration (RITA), presents State Transportation Statistics 2012, a statistical profile of transportation ...

  7. National Transportation Statistics 2009

    Science.gov (United States)

    2010-01-21

    Compiled and published by the U.S. Department of Transportation's Bureau of Transportation Statistics (BTS), National Transportation Statistics presents information on the U.S. transportation system, including its physical components, safety record, ...

  8. State Transportation Statistics 2014

    Science.gov (United States)

    2014-12-15

    The Bureau of Transportation Statistics (BTS) presents State Transportation Statistics 2014, a statistical profile of transportation in the 50 states and the District of Columbia. This is the 12th annual edition of State Transportation Statistics, a ...

  9. Ha vuelto para mirarnos

    OpenAIRE

    Casalderrey, Francisco

    2008-01-01

    En cada entrega analizaremos un cuadro, mirándolo con ojos matemáticos. Con esa particular mirada, fruto de nuestra propia (de)formación. Y desde ese punto de vista haremos paseos por el arte y las matemáticas. Espero que el lector, como hago yo mismo, disfrute descubriendo más allá de lo que a simple vista distinguiría cualquiera. Al fin de cuentas, el arte, como las matemáticas, han sido creados para hacernos disfrutar.

  10. Interfaces para control cerebral

    OpenAIRE

    Spinelli, Enrique Mario

    2000-01-01

    La función de una interfaz para control cerebral basada en señales de electroencefalograma (EEG), en forma general denominada BCI (Brain control Interface), es establecer un enlace directo entre el cerebro y una máquina, sin utilizar acciones motoras directas. Una BCI permite realizar operaciones simples a partir de la interpretación de las señales de EEG. Su desarrollo está principalmente orientado hacia la ayuda a personas con discapacidades motoras severas, que poseen deterioros en el sist...

  11. Comunicar para la salud

    Directory of Open Access Journals (Sweden)

    Lic. Eva Bocco

    1998-01-01

    Full Text Available Con este trabajo quiero plantearles una inquietud en torno al rol que nos cabe a los comunicadores en el área de la salud desde la perspectiva de la comunicación para la salud. ¿Se puede pensar la salud pública desvinculada de la comunicación? ¿La comunicación es posible sin la existencia de salud en la comunidad? ¿Qué puede hacer un comunicador en el ministerio de salud? ¿Puede un estado desarrollar políticas de salud sin la presencia de la comunicación?

  12. Democracia para ciudadanos ciborgs

    Directory of Open Access Journals (Sweden)

    Juan Varela

    2007-07-01

    Full Text Available Enumera los instrumentos imprescindibles de la ciberpolítica para campañas electorales en España, cuando se renovaron los cargos municipales. La política vuelve a ser personal cuando ciudadanos y políticos se hablan cara a cara y cita varios ejemplos, reconociendo la recuperación de la comunicación directa. La ciberdemocracia es muy exigente. Los políticos prefieren la magia de la imagen. La sociedad no sabe como detener la propaganda viral que bombardea a los buscadores de red.

  13. Democracia para ciudadanos ciborgs

    OpenAIRE

    Juan Varela

    2007-01-01

    Enumera los instrumentos imprescindibles de la ciberpolítica para campañas electorales en España, cuando se renovaron los cargos municipales. La política vuelve a ser personal cuando ciudadanos y políticos se hablan cara a cara y cita varios ejemplos, reconociendo la recuperación de la comunicación directa. La ciberdemocracia es muy exigente. Los políticos prefieren la magia de la imagen. La sociedad no sabe como detener la propaganda viral que bombardea a los buscadores de red.

  14. MINIX SYSTEM TRANSPORTATION TO CYGNUS COMPUTER

    OpenAIRE

    GUILHERMO ESTEBAN SOSA BELTRAN

    1988-01-01

    O sistema operacional MINIX é uma nova implementação do sistema UNIX, versão 7, feito para fins didáticos. Ele está formado por uma coleção de processos, estruturados em 4 niveis: administração de processos, processos básicos do sistema, processos servidores de memória e arquivos, e processos usuários. A presente dissertação descreve o transporte do sistema MINIX, do microcomputador IBM PC XT para o computador CYGNUS do laboratório de Sistema de Computação do D...

  15. Serie: Madera para construcción Acabados para madera

    OpenAIRE

    Sáenz-Muñoz, Marta; Instituto Tecnológico de Costa Rica

    2012-01-01

    Durante mucho tiempo, la madera ha sido utilizada como material de construcción para resolver principalmente objetivos estructurales; sin embargo, actualmente, el uso de la madera ha tomado mucho auge en la estética de las construcciones, para brindar apariencia y calidez. En la actualidad, el mercado ofrece una amplia gama productos para dar diversos “acabados” a la madera, los cuales sirven para resaltar la belleza de algunas de ellas, realzar características como el color y la veta, o bien...

  16. Tributación del Sector Transporte de Carga en Uruguay

    OpenAIRE

    Pedro Buonomo

    2004-01-01

    El objetivo general de este estudio es determinar la carga tributaria efectiva que incide sobre el transporte de cargas, en particular para los modos transporte terrestre (camión) y transporte aéreo, en la República Oriental del Uruguay.

  17. Transport of radioactive substances

    International Nuclear Information System (INIS)

    2014-12-01

    The report on the transport of radioactive substances covers the following topics: facts on radioactive materials transport, safety of the transport of radioactive substances, legal regulations and guidelines: a multiform but consistent system, transport of nuclear fuels, safety during the transport of nuclear fuel, future transport of spent fuel elements and high-level radioactive wastes in Germany.

  18. "Colaborar para Competir"

    Directory of Open Access Journals (Sweden)

    Martha Liliana Hijuelos-Cárdenas

    2015-06-01

    Full Text Available De acuerdo con Michael Porter, los Clusters se definen como “Una agrupación de empresas e instituciones relacionadas entre sí, pertenecientes a un mismo sector o segmento de mercado, que se encuentran próximas geográficamente y que colaboran para ser más competitivas”. Los Clusters son en última instancia una herramienta de competitividad basada en la cooperación de sus miembros, y es una de las estrategias recientes, en el país, para incrementar la productividad y competitividad y las apuestas productivas desde el nivel local. Y es precisamente esta cercanía geográfica de las empresas de un mismo sector, lo que a la vez que genera la competencia entre ellas, también les facilita el acceso a insumos y a conocimientos específicos y en última instancia les permite promover la innovación.

  19. Principios teatrales para docentes

    Directory of Open Access Journals (Sweden)

    R. Irene Arroyo Zúñiga

    2005-01-01

    Full Text Available Este trabajo pretende dar herramientas a los docentes para que puedan utilizarlas como parte de las actividades dentro de un plan de elección, en cualquier disciplina. Además encontrará una exposición de los elementos que componen el arte de la representación escénica, como son: 1. Expresión corporal; es la capacidad de expresar emociones partiendo únicamente de nuestro cuerpo. 2. Impostación; es la habilidad de proyectar la voz sin lastimar las cuerdas vocales. 3. Dicción; es la pronunciación correcta de las palabras. 4. Actuación; es la posibilidad de crear un personaje partiendo de los recursos expresivos y de la forma natural en que el alumno acostumbra a reaccionar. Técnica de improvisación, en éste artículo propongo una serie de seis pasos que pueden ser de gran ayuda a la hora de usar el teatro como recurso didáctico. El teatro a lo largo de la historia ha sido usado para transmitir conocimientos, valores, creencias y todo aspecto inherente a los individuos y su entorno social. Por lo tanto debemos aprovechar al máximo los beneficios que nos ofrece el teatro como educadores

  20. Bases para proyectiles dirigidos

    Directory of Open Access Journals (Sweden)

    Editorial, Equipo

    1959-03-01

    Full Text Available Aunque actualmente no se ha llegado a una línea general de métodos o sistemas que gobiernen un tipo característico de rampa y servicios auxiliares necesarios para el lanzamiento al espacio de proyectiles dirigidos a grandes alturas y distancias, las experiencias obtenidas en diferentes ensayos, utilizando distintos tipos de proyectiles y trayectorias balísticas, han sentado toda una serie de procedimientos, datos y conclusiones de gran valor balístico que, aun teniendo en cuenta la continua evolución del proyectil, sus formas, combustibles y alcances, se conocen ya, con bastante aproximación, las condiciones mínimas que ha de reunir una base dedicada a este tipo de lanzamientos.

  1. Registrar para avanzar

    Directory of Open Access Journals (Sweden)

    Laia Matarranz Torres

    2017-06-01

    Full Text Available El farmacéutico comunitario es un profesional sanitario con un enorme potencial para mejorar no solo el uso de los medicamentos (detectando, por ejemplo, resultados negativos de la medicación, sino también la prevención de enfermedades y la promoción de la salud pública. Sin duda, el desarrollo y el impulso que están teniendo los servicios profesionales farmacéuticos (SPF desde hace años pueden contribuir decisivamente a que este potencial se consolide de una forma definitiva, obteniendo el reconocimiento del conjunto del sistema sanitario, incluyendo tanto a otros profesionales de la salud (médicos, enfermería, medicina especializada… como a la Administración y, por supuesto, a los propios pacientes beneficiarios de estos servicios. Es cierto que la figura del farmacéutico y su ejercicio sanitario han estado tradicionalmente bien considerados por la población, pero no es menos verdad que la integración de la actividad asistencial de la farmacia comunitaria en el Sistema Nacional de Salud (SNS es, cuanto menos mejorable, y que, incluso, algunas manifestaciones ponen en entredicho de vez en cuando la labor científico-asistencial de las farmacias o generan dudas sobre su capacidad para formar parte de pleno derecho de los equipos de salud que deben trabajar de forma coordinado en la mejora de la atención sanitaria de los pacientes.

  2. Chemical transport reactions

    CERN Document Server

    Schäfer, Harald

    2013-01-01

    Chemical Transport Reactions focuses on the processes and reactions involved in the transport of solid or liquid substances to form vapor phase reaction products. The publication first offers information on experimental and theoretical principles and the transport of solid substances and its special applications. Discussions focus on calculation of the transport effect of heterogeneous equilibria for a gas motion between equilibrium spaces; transport effect and the thermodynamic quantities of the transport reaction; separation and purification of substances by means of material transport; and

  3. Beam transport

    International Nuclear Information System (INIS)

    1988-01-01

    Considerable experience has now been gained with the various beam transport lines, and a number of minor changes have been made to improve the ease of operation. These include: replacement of certain little-used slits by profile monitors (harps or scanners); relocation of steering magnets, closer to diagnostic harps or profile scanners; installation of a scanner inside the isocentric neutron therapy system; and conversion of a 2-doublet quadrupole telescope (on the neutron therapy beamline) to a 2-triplet telescope. The beam-swinger project has been delayed by very late delivery of the magnet iron to the manufacturer, but is now progressing smoothly. The K=600 spectrometer magnets have now been delivered and are being assembled for field mapping. The x,y-table with its associated mapping equipment is complete, together with the driver software. One of the experimental areas has been dedicated to the production of collimated neutron beams and has been equipped with a bending magnet and beam dump, together with steel collimators fixed at 4 degrees intervals from 0 degrees to 16 degrees. Changes to the target cooling and shielding system for isotope production have led to a request for much smaller beam spot sizes on target, and preparations have been made for rearrangement of the isotope beamline to permit installation of quadrupole triplets on the three beamlines after the switching magnet. A practical system of quadrupoles for matching beam properties to the spectrometer has been designed. 6 figs

  4. Desafíos del Sector Transporte

    OpenAIRE

    Sociedad Chilena de Ingeniería de Transporte

    2013-01-01

    La Sociedad Chilena de Ingeniería de Transporte (Sochitran), entregó el documento "Desafíos del Sector Transporte" para la discusión pública, como un aporte de esa Institución al debate programático presidencial que se llevó a cabo en Chile en ocasión de las elecciones presidenciales que han de llevar a La Moneda el próximo Presidente de la Nación en el período 2014-2018.

  5. The para-petroleum industry

    International Nuclear Information System (INIS)

    2002-07-01

    The para-petroleum industry includes societies that realize studies and installations for the deposits exploitation. This document presents the situation of the para-petroleum industry in 2001, the world investment growth of the activity, the french societies financial results and an inventory of the main operations in the amalgamation domain. (A.L.B.)

  6. Plant Transporter Identification

    DEFF Research Database (Denmark)

    Larsen, Bo

    Membrane transport proteins (transporters) play a critical role for numerous biological processes, by controlling the movements of ions and molecules in and out of cells. In plants, transporters thus function as gatekeepers between the plant and its surrounding environment and between organs......, tissues, cells and intracellular compartments. Since plants are highly compartmentalized organisms with complex transportation infrastructures, they consequently have many transporters. However, the vast majority of predicted transporters have not yet been experimentally verified to have transport...... activity. This project contains a review of the implemented methods, which have led to plant transporter identification, and present our progress on creating a high-throughput functional genomics transporter identification platform....

  7. Transport of Radioactive Materials

    International Nuclear Information System (INIS)

    2001-01-01

    This address overviews the following aspects: concepts on transport of radioactive materials, quantities used to limit the transport, packages, types of packages, labeling, index transport calculation, tags, labeling, vehicle's requirements and documents required to authorize transportation. These requirements are considered in the regulation of transport of radioactive material that is in drafting step

  8. Transportation and the environment.

    NARCIS (Netherlands)

    Banister, D.; Anderton, K.; Bonilla, D.; Givoni, M.; Schwanen, T.

    2011-01-01

    The growth of CO2-intensive transport, mobility and the impact of transport on the environment are reviewed. The recent global exponential growth in transport is unsustainable and must end unless the transport sector can decarbonize. The paper examines solutions for low-carbon transport systems; the

  9. Transporte neumático de harina

    Directory of Open Access Journals (Sweden)

    Alberto Duarte Torres

    1995-01-01

    Full Text Available En el presente artículo se analiza la información obtenida en las líneas de transporte neumático de una empresa productora de harina de maíz y sus derivados con el propósito de obtener criterios para el cambio de escala, desafío, y control de sistemas similares.

  10. Para-bosons and Para-fermions in Quantum Mechanics

    International Nuclear Information System (INIS)

    Cattani, M.S.D.; Fernandes, N.C.

    1982-01-01

    Within the framework of the ordinary quantum mechanics, a detailed study of the energy eigenfunctions of N identical particles using the irreducible representations of the permutation group in the Hilbert space is performed. It is shown that the para-states, as occurs with the boson and fermion states, are compatible with the postulates of quantum mechanics and with the principle of indistinguishability. A mathematical support for the existence of para-bosons and para-fermions is given. Gentile's quantum statistics is, in a certain sense, justified. (Author) [pt

  11. Generating para-water from para-hydrogen: A Gedankenexperiment.

    Science.gov (United States)

    Ivanov, Konstantin L; Bodenhausen, Geoffrey

    2018-07-01

    A novel conceptual approach is described that is based on the transfer of hyperpolarization from para-hydrogen in view of generating a population imbalance between the two spin isomers of H 2 O. The approach is analogous to SABRE (Signal Amplification By Reversible Exchange) and makes use of the transfer of spin order from para-hydrogen to H 2 O in a hypothetical organometallic complex. The spin order transfer is expected to be most efficient at avoided level crossings. The highest achievable enrichment levels of para- and ortho-water are discussed. Copyright © 2018 Elsevier Inc. All rights reserved.

  12. Para compreender a ciberliteratura

    Directory of Open Access Journals (Sweden)

    Lucia Santaella

    2012-12-01

    Full Text Available http://dx.doi.org/10.5007/1807-9288.2012v8n2p229   Mediante as mídias digitais, a configuração da literatura sofreu um salto qualitativo em todos os seus aspectos. O espaço virtual gerado pelas redes de computadores funciona como um novo meio. Abre-se com ele uma miríade de oportunidades que expandem o conceito de literatura em função da emergência de novas formas de criação literária. Disso decorre que a criação, a teoria e a crítica literárias exigem a redefinição de seus paradigmas herdados da era de Gutenberg. Tendo isso em vista, este artigo está voltado para a construção textual e hipertextual no espaço digital, o que implica uma exploração do que é ciberliteratura, em que ela se cruza e em que diverge da literatura impressa, que estratégias significantes a caracterizam e como essas estratégias são interpretadas pelos usuários na sua busca de significado.

  13. para promover la salud

    Directory of Open Access Journals (Sweden)

    Ma. del Consuelo Chapela

    2002-01-01

    Full Text Available Hablar de educación a distancia sustentada en el desarrollo de la cibernética obliga a reflexionar sobre sus definiciones, objetivos y medios, especialmente si pensamos en las necesidades de la fracción de población que no tiene acceso a las posibilidades que ofrece el desarrollo tecnológico. En este trabajo se presenta e ilustra con un ejemplo práctico, una perspectiva sobre las posibilidades de la educación a distancia desde las necesidades de la promoción de la salud entre grupos de población marginada en el mundo virtual. Se propone la creación de bibliotecas itinerantes regionales que pongan a disposición de la población con acceso limitado a la información, la tecnología comunicativa necesaria para apoyar los trabajos de promoción de la salud.

  14. Transportation librarian's toolkit

    Science.gov (United States)

    2007-12-01

    The Transportation Librarians Toolkit is a product of the Transportation Library Connectivity pooled fund study, TPF- 5(105), a collaborative, grass-roots effort by transportation libraries to enhance information accessibility and professional expert...

  15. Advanced Transportation Institute 2008.

    Science.gov (United States)

    2009-02-01

    The seventh version of the Advanced Transportation Institute (ATI-08) was conducted in 2008 to encourage high school students to pursue careers in the field of transportation engineering. The University Transportation Center for Alabama partnered wit...

  16. Advanced Transportation Institute 2009.

    Science.gov (United States)

    2009-09-01

    The eighth version of the Advanced Transportation Institute (ATI-09) was conducted in 2009 to encourage high school students to pursue careers in the field of transportation engineering. The University Transportation Center for Alabama partnered with...

  17. Innovative Technologies in Transportation

    Science.gov (United States)

    2004-12-01

    An historical overview of the transportation infrastructure of the United States and Texas is provided. Data for trends in transportation is analyzed and projections for the future are postulated. A survey of current technologies in transportation is...

  18. State Transportation Statistics 2010

    Science.gov (United States)

    2011-09-14

    The Bureau of Transportation Statistics (BTS), a part of DOTs Research and Innovative Technology Administration (RITA), presents State Transportation Statistics 2010, a statistical profile of transportation in the 50 states and the District of Col...

  19. State transportation statistics 2009

    Science.gov (United States)

    2009-01-01

    The Bureau of Transportation Statistics (BTS), a part of DOTs Research and : Innovative Technology Administration (RITA), presents State Transportation : Statistics 2009, a statistical profile of transportation in the 50 states and the : District ...

  20. State Transportation Statistics 2011

    Science.gov (United States)

    2012-08-08

    The Bureau of Transportation Statistics (BTS), a part of DOTs Research and Innovative Technology Administration (RITA), presents State Transportation Statistics 2011, a statistical profile of transportation in the 50 states and the District of Col...

  1. State Transportation Statistics 2013

    Science.gov (United States)

    2014-09-19

    The Bureau of Transportation Statistics (BTS), a part of the U.S. Department of Transportations (USDOT) Research and Innovative Technology Administration (RITA), presents State Transportation Statistics 2013, a statistical profile of transportatio...

  2. Elaboración de un estudio de carácter exploratorio para poner a prueba una herramienta de identificación de alternativas de recuperación del servicio en la industria de transporte aéreo de pasajeros

    OpenAIRE

    Paz Castro, Martha Eugenia

    2012-01-01

    Como parte de un trabajo de investigación conducente a resultados que trascienden el alcance del presente, se desarrolló este proyecto orientado a la realización de una investigación que sirva, de manera exploratoria, como una aproximación inicial al desarrollo de una herramienta para la recuperación del servicio. Para tal fin se hizo una revisión bibliográfica sobre aspectos como calidad del servicio, recuperación del servicio, y modelo y escala SERVQUAL. Se seleccionó la industria del trans...

  3. Para-equilibrium phase diagrams

    International Nuclear Information System (INIS)

    Pelton, Arthur D.; Koukkari, Pertti; Pajarre, Risto; Eriksson, Gunnar

    2014-01-01

    Highlights: • A rapidly cooled system may attain a state of para-equilibrium. • In this state rapidly diffusing elements reach equilibrium but others are immobile. • Application of the Phase Rule to para-equilibrium phase diagrams is discussed. • A general algorithm to calculate para-equilibrium phase diagrams is described. - Abstract: If an initially homogeneous system at high temperature is rapidly cooled, a temporary para-equilibrium state may result in which rapidly diffusing elements have reached equilibrium but more slowly diffusing elements have remained essentially immobile. The best known example occurs when homogeneous austenite is quenched. A para-equilibrium phase assemblage may be calculated thermodynamically by Gibbs free energy minimization under the constraint that the ratios of the slowly diffusing elements are the same in all phases. Several examples of calculated para-equilibrium phase diagram sections are presented and the application of the Phase Rule is discussed. Although the rules governing the geometry of these diagrams may appear at first to be somewhat different from those for full equilibrium phase diagrams, it is shown that in fact they obey exactly the same rules with the following provision. Since the molar ratios of non-diffusing elements are the same in all phases at para-equilibrium, these ratios act, as far as the geometry of the diagram is concerned, like “potential” variables (such as T, pressure or chemical potentials) rather than like “normal” composition variables which need not be the same in all phases. A general algorithm to calculate para-equilibrium phase diagrams is presented. In the limit, if a para-equilibrium calculation is performed under the constraint that no elements diffuse, then the resultant phase diagram shows the single phase with the minimum Gibbs free energy at any point on the diagram; such calculations are of interest in physical vapor deposition when deposition is so rapid that phase

  4. Marcadores para la Realidad Aumentada para fines educativos

    Directory of Open Access Journals (Sweden)

    María Reina Zarate Nava

    2013-12-01

    Full Text Available La Realidad Aumentada (AR es considerada por algunos expertos como la tecnología en crecimiento para el 2014, en diferentes sectores: ingeniería, educación, juegos y negocios, siendo este último el más usado en él 2013. Sin embargo en el sector educativo la AR se presenta en algunos proyectos que se han desarrollado para diferentes áreas de las ciencias, como Química, Física y Matemáticas, lo anterior con el objetivo de facilitar el proceso de Enseñanza-Aprendizaje. En el presente artículo se presenta el modelo de patrones utilizado para un Proyecto AR enfocado en Química, el cual presenta un conjunto de patrones que fueron valorados para facilitar el rastreo de los objetos y a su vez el entendimiento de algunos materiales de los laboratorios de Química I.

  5. Smart Growth and Transportation

    Science.gov (United States)

    Describes the relationship between smart growth and transportation, focusing smart and sustainable street design, transit-oriented development, parking management, sustainable transportation planning, and related resources.

  6. Neoclassical transport in NCSX

    International Nuclear Information System (INIS)

    Mikkelsen, D.R.; Zarnstorff, M.C.; Beidler, C.D.; Maassberg, H.; Houlberg, W.A.; Spong, D.A.; Tribaldos, V.

    2003-01-01

    Methods for calculating neoclassical transport in the National Compact Stellarator Experiment (NCSX) are discussed, with particular attention to developing computationally inexpensive predictions of neoclassical transport. (orig.)

  7. Journal of transportation engineering

    National Research Council Canada - National Science Library

    1983-01-01

    The Journal of Transportation Engineering contains technical and professional articles on the planning, design, construction, maintenance, and operation of air, highway, rail, and urban transportation...

  8. Transportation Industry 2004

    National Research Council Canada - National Science Library

    Miller, Evan; Kathir, Nathan; Brogan, Dennis M

    2004-01-01

    .... Because the defense sector relies on commercial transportation for both peacetime activities and for power projection, senior military leaders must understand the global transportation industry...

  9. Saxton Transportation Operations Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — The Saxton Transportation Operations Laboratory (Saxton Laboratory) is a state-of-the-art facility for conducting transportation operations research. The laboratory...

  10. Algoritmos para problemas de empacotamento

    OpenAIRE

    Eduardo Candido Xavier

    2006-01-01

    Resumo: Neste trabalho estudamos diversos problemas de empacotamento considerados NP-difíceis. Assumindo a hipótese de que P ? NP, sabemos que não existem algoritmos eficientes (complexidade de tempo polinomial) exatos para resolver tais problemas. Uma das abordagens consideradas para tratar tais problemas é a de algoritmos de aproximação, que são algoritmos eficientes e que geram soluções com garantia de qualidade. Neste trabalho apresentamos alguns algoritmos aproximados para problemas de e...

  11. Modelling freight transport

    NARCIS (Netherlands)

    Tavasszy, L.A.; Jong, G. de

    2014-01-01

    Freight Transport Modelling is a unique new reference book that provides insight into the state-of-the-art of freight modelling. Focusing on models used to support public transport policy analysis, Freight Transport Modelling systematically introduces the latest freight transport modelling

  12. Transport of radioactive materials

    International Nuclear Information System (INIS)

    2013-01-01

    This ninth chapter presents de CNEN-NE--5.01 norm 'Transport of radioactive material'; the specifications of the radioactive materials for transport; the tests of the packages; the requests for controlling the transport and the responsibilities during the transport of radioactive material

  13. Water-transporting proteins

    DEFF Research Database (Denmark)

    Zeuthen, Thomas

    2010-01-01

    . In the K(+)/Cl(-) and the Na(+)/K(+)/2Cl(-) cotransporters, water is entirely cotransported, while water transport in glucose uniporters and Na(+)-coupled transporters of nutrients and neurotransmitters takes place by both osmosis and cotransport. The molecular mechanism behind cotransport of water...... transport. Epithelial water transport is energized by the movements of ions, but how the coupling takes place is uncertain. All epithelia can transport water uphill against an osmotic gradient, which is hard to explain by simple osmosis. Furthermore, genetic removal of aquaporins has not given support...... to osmosis as the exclusive mode of transport. Water cotransport can explain the coupling between ion and water transport, a major fraction of transepithelial water transport and uphill water transport. Aquaporins enhance water transport by utilizing osmotic gradients and cause the osmolarity...

  14. Uma ferramenta para planejamento de estudos para concursos

    Directory of Open Access Journals (Sweden)

    Leonardo Pimentel

    2015-11-01

    Full Text Available De acordo com a constituição brasileira, a única forma de se tornar um empregado do governo é passar em um concurso público. O exame de conhecimento do cargo é um dos componentes mais importantes de um concurso. Estudar para esse exame é uma tarefa que requer planejamento. Um meio de obter um bom planejamento é construir uma grade de horários que relacione as matérias a serem estudadas com os respectivos horários disponíveis para o estudo. Esse tipo de problema se assemelha bastante à gerência de projetos, em que se procura estabelecer a distribuição das atividades ao longo do tempo disponível. Assim, torna-se interessante explorar a dinâmica de estudos para concursos como um projeto. O presente trabalho apresenta a ferramenta de apoio ao estudos - Passe-me, baseada no ciclo PDCA (do inglês, Plan-Do-Check-Act. Por se tratar de uma ferramenta web, o tempo de resposta para produzir uma grade de estudos é fundamental. A ferramenta faz uso de algoritmo genético para calcular a grade de horários priorizando a velocidade de resposta. A ferramenta foi avaliada em diferentes cenários de uso e obteve desempenho satisfatório durante a produção da grade de estudos.

  15. Blood Sample Transportation by Pneumatic Transportation Systems

    DEFF Research Database (Denmark)

    Nybo, Mads; Lund, Merete E; Titlestad, Kjell

    2018-01-01

    BACKGROUND: Pneumatic transportation systems (PTSs) are increasingly used for transportation of blood samples to the core laboratory. Many studies have investigated the impact of these systems on different types of analyses, but to elucidate whether PTSs in general are safe for transportation...... analysis, and the hemolysis index). CONCLUSIONS: Owing to their high degree of heterogeneity, the retrieved studies were unable to supply evidence for the safety of using PTSs for blood sample transportation. In consequence, laboratories need to measure and document the actual acceleration forces...

  16. Magnetic type transportation system

    International Nuclear Information System (INIS)

    Kobama, Masao.

    1981-01-01

    Purpose: To enable automatic transportation of nuclear substances with optional setting for the transportation distance, even for a long distance, facilitating the automation of the transportation and decreasing the space for the installation of a direction converging section of the transporting path. Constitution: A transporting vehicle having a pair of permanent magnets or ferromagnetic bodies mounted with a predetermined gap to each other along the transporting direction is provided in the transporting path including a bent direction change section for transporting specimens such as nuclear materials, and a plurality of driving vehicles having permanent magnets or ferromagnetic bodies for magnetically attracting the transporting vehicle from outside of the transporting path are arranged to the outside of the transporting path. At least one of the driving vehicles is made to run along the transporting direction of the transporting path by a driving mechanism incorporating running section such as an endless chain to drive the transportation vehicle, and the transporting vehicle is successively driven by each of the driving mechanisms. (Kawakami, Y.)

  17. ¿Argumentar para definir o definir para argumentar?

    OpenAIRE

    Silva, Luz; Samper, Carmen

    2013-01-01

    Se presenta y se ilustra un marco de referencia de un estudio en curso para obtener el título de Maestría en Docencia de la Matemática de la Universidad Pedagógica Nacional (Colombia); estudio sobre la conexión entre las acciones de definir y argumentar, que puede contribuir a la práctica de profesores en ejercicio y en formación. La habilidad para construir una definición es un posible indicio de comprensión, mientras que saberla de memoria no garantiza la comprensión del concepto (Vinner, 1...

  18. Transportation Technology: Rail Transport and Logistics

    Science.gov (United States)

    Lang, Aaron B.

    2011-01-01

    Transportation can simply be defined as the movement of goods, services, and people from one location to another. Without an efficient means to transport goods from place to place, the economy would be nothing like it is today. Throughout the history of the United States, American railroads have paved the way toward creating a nation of great…

  19. Information disclosure on transport

    International Nuclear Information System (INIS)

    Kubo, M.

    1998-01-01

    In Japan, the transport of nuclear fuel materials strictly meets the above international convention and domestic regulations as well. Information on the transport of nuclear fuel materials within the country and between the country and foreign countries is treated carefully. Nuclear fuel materials are categorized for transport and are physically protected accordingly. Certain transportation information is treated with special precautions, including prior arrangements among sender, recipient and carrier, and prior agreement between entities subject to the jurisdiction and regulation of supplier and recipient countries. In the case of international transport, this information includes specifying time, place and procedures for transferring transport and responsibility. (O.M.)

  20. Secure Transportation Management

    International Nuclear Information System (INIS)

    Gibbs, P. W.

    2014-01-01

    Secure Transport Management Course (STMC) course provides managers with information related to procedures and equipment used to successfully transport special nuclear material. This workshop outlines these procedures and reinforces the information presented with the aid of numerous practical examples. The course focuses on understanding the regulatory framework for secure transportation of special nuclear materials, identifying the insider and outsider threat(s) to secure transportation, organization of a secure transportation unit, management and supervision of secure transportation units, equipment and facilities required, training and qualification needed.

  1. Monte Carlo Transport for Electron Thermal Transport

    Science.gov (United States)

    Chenhall, Jeffrey; Cao, Duc; Moses, Gregory

    2015-11-01

    The iSNB (implicit Schurtz Nicolai Busquet multigroup electron thermal transport method of Cao et al. is adapted into a Monte Carlo transport method in order to better model the effects of non-local behavior. The end goal is a hybrid transport-diffusion method that combines Monte Carlo Transport with a discrete diffusion Monte Carlo (DDMC). The hybrid method will combine the efficiency of a diffusion method in short mean free path regions with the accuracy of a transport method in long mean free path regions. The Monte Carlo nature of the approach allows the algorithm to be massively parallelized. Work to date on the method will be presented. This work was supported by Sandia National Laboratory - Albuquerque and the University of Rochester Laboratory for Laser Energetics.

  2. Taller para desarrollar la creatividad

    OpenAIRE

    MARTÍNEZ GUEROLA, BEATRIZ

    2015-01-01

    [ES] Partimos de la base de que la creatividad es una capacidad realmente valiosa, no solo para el ámbito artístico, si no para cualquier aspecto de la vida. Este proyecto está enfocado a un taller diseñado para que a partir de técnicas de expresión gráfico-plásticas podamos estimular y desarrollar la creatividad, principalmente en niños de tercer ciclo de primaria. Con este proyecto relacionamos el arte y la creatividad que se asocia a esté con la educación. Martínez Guerola, B. (2015). T...

  3. Exhibidor de cinturones para Montagne

    OpenAIRE

    Galletti, Julia

    2017-01-01

    En el exhibidor de cinturones diseñado para la marca de ropa deportiva Montagne se produjo un trabajo estético-formal en relación a la simbología característica de la marca. Su principal característica es ser un exhibidor 360°, es decir que desde cualquier punto de vista se puede obtener un buen panorama del producto expuesto. Está confeccionado en materiales livianos para facilitar su movilidad dentro del local estipulado (exhibición en vidriera o mostrador). Asimismo, es totalmente desarmab...

  4. Colombia competente para la paz

    Directory of Open Access Journals (Sweden)

    Norma Sofía Vanegas Torres

    2013-07-01

    Full Text Available La paz y la convivencia en Colombia demandan el desarrollo de un enfoque humanístico, una competencia particular que como las restantes competencias implican un saber y un saber hacer dentro de un contexto, pero que en este caso se relacionan más concretamente con el saber vivir. Este artículo analiza el desarrollo de una posible de competencia para la paz y analiza la importancia de la academia como medio para su desarrollo e instrumentalización. Se analizan al mismo tiempo las connotaciones de esta competencia en el marco de la sociedad posmoderna contemporánea.

  5. PERSPECTIVAS DO SISTEMA DE TRANSPORTE URBANO DE LONDRINA - PARANÁ

    Directory of Open Access Journals (Sweden)

    Mirian Vizintim Fernandes Barros

    2014-03-01

    Full Text Available O artigo propõe indicar os problemas encontrados no atual sistema de transporte urbano na cidade de Londrina - Paraná, marcado pela predominância do uso do transporte individual e do coletivo ineficiente e de alto custo. Para tanto, utilizou-se ferramenta dos Sistemas de Informação Geográfica (SIG para, por meio da manipulação dos dados, confirmar a ideia da intrínseca e necessária integração entre o planejamento do uso e ocupação do solo (sobretudo da densidade demográfica e do transporte urbano, essencial para delinear diretrizes de melhorias no sistema coletivo de deslocamento. Identificado os principais problemas, propostas são traçadas e, algumas perspectivas são discutidas objetivando, além da melhoria no sistema de transporte urbano de Londrina, a reflexão sobre o ideal de uma cidade inclusiva, do ponto de vista dos transportes.

  6. Sustainable Transportation and Health

    Directory of Open Access Journals (Sweden)

    Norbert Mundorf

    2018-03-01

    Full Text Available We are experiencing a shift in thinking about Transportation and Mobility, which makes this Special Issue on Sustainable Transportation and Health in the International Journal of Environmental Research and Public Health especially timely.[...

  7. Arizona transportation history.

    Science.gov (United States)

    2011-12-01

    The Arizona transportation history project was conceived in anticipation of Arizonas centennial, which will be : celebrated in 2012. Following approval of the Arizona Centennial Plan in 2007, the Arizona Department of : Transportation (ADOT) recog...

  8. Department of Transportation

    Science.gov (United States)

    ... of Drone Integration Pilot Program MEET THE SECRETARY TRANSPORTATION TUESDAY FEATURED NEWS The Briefing Room Connect With ... Carriers - Get a DOT Number Find Your State Transportation Department 5 Star Automobile Crash Test Ratings Office ...

  9. Transportation Management Workshop: Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    1993-10-01

    This report is a compilation of discussions presented at the Transportation Management Workshop held in Gaithersburg, Maryland. Topics include waste packaging, personnel training, robotics, transportation routing, certification, containers, and waste classification.

  10. TRANSPORTATION ECONOMIC TRENDS 2017

    Science.gov (United States)

    2018-01-05

    The report has eight chapters: - Chapter 1 introduces the Transportation Services Index, a monthly summary of freight and passenger movement. - Chapter 2 explains what transportation contributes to the American economy. - Chapter 3 examines the costs...

  11. Oxygen transport membrane

    DEFF Research Database (Denmark)

    2015-01-01

    The present invention relates to a novel composite oxygen transport membrane as well as its preparation and uses thereof.......The present invention relates to a novel composite oxygen transport membrane as well as its preparation and uses thereof....

  12. Transport not as others

    International Nuclear Information System (INIS)

    Gruhier, Fabien.

    1979-01-01

    Transport of radioactive materials will increase with the development of nuclear power station. Problems arising are examined. Some examples of past accidents are given. Thermal and impact tests of containers and categories of transport are recalled [fr

  13. Transportation Management Workshop: Proceedings

    International Nuclear Information System (INIS)

    1993-01-01

    This report is a compilation of discussions presented at the Transportation Management Workshop held in Gaithersburg, Maryland. Topics include waste packaging, personnel training, robotics, transportation routing, certification, containers, and waste classification

  14. National transportation statistics 2010

    Science.gov (United States)

    2010-01-01

    National Transportation Statistics presents statistics on the U.S. transportation system, including its physical components, safety record, economic performance, the human and natural environment, and national security. This is a large online documen...

  15. Transportation Services Index

    Data.gov (United States)

    Department of Transportation — The TSI is a monthly measure of the volume of services performed by the for-hire transportation sector. The index covers the activities of for-hire freight carriers,...

  16. Transport of MOX fuel

    International Nuclear Information System (INIS)

    Porter, I.R.; Carr, M.

    1997-01-01

    The regulatory framework which governs the transport of MOX fuel is set out, including packages, transport modes and security requirements. Technical requirements for the packages are reviewed and BNFL's experience in plutonium and MOX fuel transport is described. The safety of such operations and the public perception of safety are described and the question of gaining public acceptance for MOX fuel transport is addressed. The paper concludes by emphasising the need for proactive programmes to improve the public acceptance of these operations. (Author)

  17. Radioactive materials transport

    International Nuclear Information System (INIS)

    Talbi, B.

    1996-01-01

    The development of peaceful applications of nuclear energy results in the increase of transport operations of radioactive materials. Therefore strong regulations on transport of radioactive materials turns out to be a necessity in Tunisia. This report presents the different axes of regulations which include the means of transport involved, the radiation protection of the carriers, the technical criteria of security in transport, the emergency measures in case of accidents and penalties in case of infringement. (TEC). 12 refs., 1 fig

  18. TRANSPORTATION INFORMATION CLEARINGHOUSE

    OpenAIRE

    Allen, Karin; Dijohn, Joseph; Misek, Shamus

    2005-01-01

    The Transportation Information Clearinghouse (TIC) Project was the result of collaboration among the Regional Transportation Authority, the Workforce Boards of Metropolitan Chicago and the Urban Transportation Center (UTC) at the University of Illinois at Chicago (UIC). The primary objective of the project was to identify privatelyprovided, employer-based, non-traditional transportation services in operation as well as specific information about these services in order for employers, Workforc...

  19. Transport statistics 1995

    CSIR Research Space (South Africa)

    De Haan, ML

    1996-04-01

    Full Text Available This publication contains information on all major modes of transport in South Africa. The transport sector is placed in perspective relative to the macro economy and a number of important transport indicators are given. The document also contains...

  20. Transports of radioactive materials

    International Nuclear Information System (INIS)

    Sousselier, Yves

    1982-01-01

    Transport safety depends on the packaging, and the degree of safety must be adapted to the potential hazards of the substance carried. The various kinds of packagings and their strength are examined and the transport of irradiated fuels from the safety angle is taken as example and a comparison is made with the transport of conventional dangerous substances [fr

  1. Transport of radioactive materials

    International Nuclear Information System (INIS)

    Lenail, B.

    1984-01-01

    Transport of radioactive materials is dependent of transport regulations. In practice integrated doses for personnel during transport are very low but are more important during loading or unloading a facility (reactor, plant, laboratory, ...). Risks occur also if packagings are used outside specifications. Recommendations to avoid these risks are given [fr

  2. Transportation in African Development.

    Science.gov (United States)

    Altschul, Robert D.

    1980-01-01

    Examines the structure, role, and needs of Africa's national and intracontinental transportation system. Characteristics of rail, water, road, and air transportation are examined. The conclusion is that high investment in transportation systems is essential to the development process. (Author/KC)

  3. Competing Transport Networks

    NARCIS (Netherlands)

    M.J. van der Leij (Marco)

    2003-01-01

    textabstractIn a circular city model, I consider network design and pricing decisions for a single fast transport connection that faces competition from a slower but better accessible transport mode. To access the fast transport network individuals have to make complementary trips by slow mode. This

  4. NATURAL GAS TRANSPORTATION

    OpenAIRE

    Stanis³aw Brzeziñski

    2007-01-01

    In the paper, Author presents chosen aspects of natural gas transportation within global market. Natural gas transportation is a technicaly complicated and economicly expensive process; in infrastructure construction and activities costs. The paper also considers last and proposed initiatives in natural gas transportation.

  5. Assessing Sensitiveness to Transport

    DEFF Research Database (Denmark)

    Lieb, Christoph; Suter, Stefan; Sánchez, Alfredo

    Summary The EU-project ASSET (ASessing SEnsitiveness to Transport) aims at developing and implementing a concise concept to assess transport sensitive areas (TSA) in a European context, i.e. areas in which transport leads to more serious impacts than in other areas. The aim of work package 2 (WP2...

  6. de Canadá: una alternativa para México

    Directory of Open Access Journals (Sweden)

    Carlos Alberto Tello

    2006-01-01

    Full Text Available La posibilidad de aplicar telecomunicaciones al trabajo en casa se ve como una de las alternativas viables para disminuir los problemas de congestionamiento vehicular, desperdicio de energía y contaminación del aire en las grandes ciudades. La extensión de las telecomunicaciones a casas y oficinas periféricas, así como la creciente disponibilidad de computadoras, impresoras, fax, etc., han impulsado la exploración de los esquemas telelaborales. Estos esquemas incorporan las propuestas de dicho trabajo en casa, la descentralización del lugar de producción mismo por medio de la creación de oficinas satélite, así como la adopción de nuevas estructuras que permitan reorganizar en una institución las actividades de gerencia y personal. La intención de este artículo es investigar el comportamiento de los viajes cuando los empleados de gobierno se desplazan a sus respectivos lugares de trabajo, con el afán de determinar su disposición a telelaborar en el área metropolitana de la ciudad de Ottawa, en la provincia de Ontario, Canadá. Para lograrlo se diseñó una metodología particular que practica cuatro estudios de campo: dos para examinar el comportamiento de los viajes mencionado en la gerencia y en el personal del departamento de planificación y dos más para la gerencia y el personal del departamento de transporte, ambos del gobierno municipal de Ottawa. Como se esperaba, el estudio reveló que la disposición para telelaborar, cuantificada en términos de apoyo y aceptación por parte de gerentes y empleados respectivamente es significativa: 50% de los gerentes de planificación que participaron en las encuestas y aproximadamente 86% de sus homólogos de transporte apoyaron los arreglos de tipo telelaboral. Asimismo, 41% del personal de planificación aceptó telelaborar en promedio 3.5 días por semana (entre 3 y 4 días y aproximadamente 40% del personal de transporte aceptó hacer lo mismo dos días por semana.

  7. Bilateral Transport Cost, Infrastructure, Common Bilateral Ties and Political Stability.

    Directory of Open Access Journals (Sweden)

    Danielken Molina

    2010-05-01

    Full Text Available Los costos de transporte son una de las más importantes fuentes de barreras al comercio. Inspirados por este aspecto, utilizamos un modelo empírico ad-hoc con el fin de examinar los posibles determinantes de los costos de transporte. Utilizando una base de datos de costos de transporte bilaterales para el año 1990, replicamos el trabajo de Limao y Venables (2001 y encontramos que el efecto de su ´índice de infraestructura sobre los costos de transporte no es robusto. Siguiendo a Micco (2004 y Micco y Serebrinzky (2005 calculamos dos ´índices alternativos de infraestructura. Utilizando estos ´índices encontramos que aparte de la distancia, la infraestructura, la estabilidad política, las relaciones bilaterales comunes y los acuerdos de cielos abiertos son otros importantes canales mediante los cuales los costos de transporte pueden reducirse.

  8. Efectos de las políticas de transporte sobre las áreas sensibles.

    OpenAIRE

    Arce Ruíz, Rosa María; Hernández Casero, Jaime; Martín Ramos, Belén

    2008-01-01

    El Centro de Investigacion del Transporte de la Universidad Politecnica de Madrid - TRANSyT-UPM- forma parte del proyecto de investigacion ASSET (Assessing SEnsitiveness to Transport) financiado por la Comision Europea. Su objetivo principal es desarrollar las capacidades cientificas y metodologicas para poner en ejecucion politicas e instrumentos que tienen como fin el equilibrio entre la protection de las areas ambientalmente sensibles con la disposition de un sistema eficiente de transport...

  9. Tuberculose em Salvador: custos para o sistema de saúde e para as famílias

    Directory of Open Access Journals (Sweden)

    Costa João G

    2005-01-01

    Full Text Available OBJETIVO: A tuberculose é uma das maiores causas de mortalidade no mundo, porém seus efeitos econômicos são pouco conhecidos. O objetivo do estudo foi o de estimar os custos do tratamento e prevenção da tuberculose para o sistema de saúde (público e privado e para as famílias. MÉTODOS: O estudo foi realizado no município de Salvador, BA, em 1999. Os dados para estimação dos custos para o sistema de saúde foram coletados nas secretarias de saúde, centros de saúde e em uma entidade filantrópica. Os custos públicos e privados foram estimados pela metodologia da contabilidade de custos. Os dados de custos para as famílias foram coletados por meio de questionários e incluem despesas com transporte, alimentação e outros, bem como as perdas de renda associadas à doença. RESULTADOS: O custo médio para tratamento de um caso novo de tuberculose foi de aproximadamente R$186,00 (US$103; para o tratamento de um paciente multiresistente o custo foi 27 vezes mais alto. Os custos para o serviço público corresponderam a 65% em internações, 32% em tratamento e apenas 3% em prevenção. As famílias comprometeram cerca de 33% da sua renda com despesas relacionadas a tuberculose. CONCLUSÕES: Apesar do fato das famílias não terem que pagar por medicamentos e tratamento, dado que este serviço é oferecido pelo Estado, os custos familiares ligados a perda de rendimentos devido a doença foram muito elevados. A proporção utilizada em prevenção pelo serviço público é pequena. Um maior investimento em campanhas de prevenção poderia não somente diminuir o número de casos, mas também, levar a um diagnósticos precoce, diminuindo os custos associados à hospitalização. A falta de um sistema integrado de custos não permite a visualização dos custos nos diversos setores.

  10. Road Transport Entrepreneurs and Road Transportation Revolution ...

    African Journals Online (AJOL)

    Toshiba

    upon a massive road-building programme throughout the colony. The rapid expansion ..... transportation problems of his textile customers and palm produce producers and ... unflinching loyalty and solidarity with their illustrious son, General.

  11. Transportation and public health.

    Science.gov (United States)

    Litman, Todd

    2013-01-01

    This article investigates various ways that transportation policy and planning decisions affect public health and better ways to incorporate public health objectives into transport planning. Conventional planning tends to consider some public health impacts, such as crash risk and pollution emissions measured per vehicle-kilometer, but generally ignores health problems resulting from less active transport (reduced walking and cycling activity) and the additional crashes and pollution caused by increased vehicle mileage. As a result, transport agencies tend to undervalue strategies that increase transport system diversity and reduce vehicle travel. This article identifies various win-win strategies that can help improve public health and other planning objectives.

  12. Convective transport in tokamaks

    International Nuclear Information System (INIS)

    D'Ippolito, D.A.; Myra, J.R.; Russell, D.A.; Krasheninnikov, S.I.; Pigarov, A.Yu.; Yu, G.Q.; Xu, X.Q.; Nevins, W.M.

    2005-01-01

    Scrape-off-layer (SOL) convection in fusion experiments appears to be a universal phenomenon that can 'short-circuit' the divertor in some cases. The theory of 'blob' transport provides a simple and robust physical paradigm for studying convective transport. This paper summarizes recent advances in the theory of blob transport and its comparison with 2D and 3D computer simulations. We also discuss the common physical basis relating radial transport of blobs, pellets, and ELMs and a new blob regime that may lead to a connection between blob transport and the density limit. (author)

  13. Theory of contributon transport

    International Nuclear Information System (INIS)

    Painter, J.W.; Gerstl, S.A.W.; Pomraning, G.C.

    1980-10-01

    A general discussion of the physics of contributon transport is presented. To facilitate this discussion, a Boltzmann-like transport equation for contributons is obtained, and special contributon cross sections are defined. However, the main goal of this study is to identify contributon transport equations and investigate possible deterministic solution techniques. Four approaches to the deterministic solution of the contributon transport problem are investigated. These approaches are an attempt to exploit certain attractive properties of the contributon flux, psi = phi phi + , where phi and phi + are the solutions to the forward and adjoint Boltzmann transport equations

  14. Transportation Business Plan

    International Nuclear Information System (INIS)

    1986-01-01

    The Transportation Business Plan is a step in the process of procuring the transportation system. It sets the context for business strategy decisions by providing pertinent background information, describing the legislation and policies governing transportation under the NWPA, and describing requirements of the transportation system. Included in the document are strategies for procuring shipping casks and transportation support services. In the spirit of the NWPA directive to utilize the private sector to the maximum extent possible, opportunities for business ventures are obvious throughout the system development cycle

  15. Transportation safety training

    International Nuclear Information System (INIS)

    Jones, E.

    1990-01-01

    Over the past 25 years extensive federal legislation involving the handling and transport of hazardous materials/waste has been passed that has resulted in numerous overlapping regulations administered and enforced by different federal agencies. The handling and transport of hazardous materials/waste involves a significant number of workers who are subject to a varying degree of risk should an accident occur during handling or transport. Effective transportation training can help workers address these risks and mitigate them, and at the same time enable ORNL to comply with the federal regulations concerning the transport of hazardous materials/waste. This presentation will outline how the Environmental and Health Protection Division's Technical Resources and Training Section at the Oak Ridge National Laboratory, working with transportation and waste disposal personnel, have developed and implemented a comprehensive transportation safety training program to meet the needs of our workers while satisfying appropriate federal regulations. 8 refs., 3 tabs

  16. Transportation System Requirements Document

    International Nuclear Information System (INIS)

    1993-09-01

    This Transportation System Requirements Document (Trans-SRD) describes the functions to be performed by and the technical requirements for the Transportation System to transport spent nuclear fuel (SNF) and high-level radioactive waste (HLW) from Purchaser and Producer sites to a Civilian Radioactive Waste Management System (CRWMS) site, and between CRWMS sites. The purpose of this document is to define the system-level requirements for Transportation consistent with the CRWMS Requirement Document (CRD). These requirements include design and operations requirements to the extent they impact on the development of the physical segments of Transportation. The document also presents an overall description of Transportation, its functions, its segments, and the requirements allocated to the segments and the system-level interfaces with Transportation. The interface identification and description are published in the CRWMS Interface Specification

  17. TRANSPORT/HANDLING REQUESTS

    CERN Multimedia

    Groupe ST/HM

    2002-01-01

    A new EDH document entitled 'Transport/Handling Request' will be in operation as of Monday, 11th February 2002, when the corresponding icon will be accessible from the EDH desktop, together with the application instructions. This EDH form will replace the paper-format transport/handling request form for all activities involving the transport of equipment and materials. However, the paper form will still be used for all vehicle-hire requests. The introduction of the EDH transport/handling request form is accompanied by the establishment of the following time limits for the various services concerned: 24 hours for the removal of office items, 48 hours for the transport of heavy items (of up to 6 metric tons and of standard road width), 5 working days for a crane operation, extra-heavy transport operation or complete removal, 5 working days for all transport operations relating to LHC installation. ST/HM Group, Logistics Section Tel: 72672 - 72202

  18. [Acute-stage para- and tetraplegia].

    Science.gov (United States)

    Hachen, H J

    1993-03-20

    A quarter of a century ago, in October 1964, the first spinal cord injury center in Switzerland was opened at Geneva University Hospital. At that time all para- and tetraplegics were classified as "high-risk" patients. Early mortality, covering the initial four weeks following trauma, was still around 15%. The available resources for diagnostic assessment were limited to clinical examination and neuroradiological assessment (subsequently improved by the introduction of tomography and gas myelography). A great many patients suffered a deteriorated neurological level due to inadequate, multiple transfers between hospitals. Most patients who are paralyzed following a road-traffic accident show severe polytrauma. Their chances of survival and functional recovery have greatly improved in recent years due to efficient emergency transport by helicopter, admission to an intensive care unit (respiratory therapy, prophylactic anticoagulation, gastrointestinal cytoprotection, prevention of pressure sores, etc.) and a comprehensive medico-surgical team approach (orthopedic surgeons, neurosurgeons, ICU specialists, internists, etc.). Evaluation of the spine and spinal cord by NMR and CT scan allows precise assessment of the extent of CNS damage and provides additional guide-lines regarding efficient surgical reposition and spinal fusion. Ongoing experimental research in neurophysiology and neurobiochemistry of the brain and spinal cord is presently yielding some interesting results which hold out new hopes for functional recovery in some specific types of incomplete spinal cord trauma.

  19. MODELO PARA LA CREACIÓN DEL CONOCIMIENTO PARA PYMES

    Directory of Open Access Journals (Sweden)

    Marino Valencia Rodríguez

    2009-01-01

    Full Text Available La creciente importancia del conocimiento, como nuevo factor de producción, hace que la creación y transferencia se convierta en una de las principales prioridades de las organizaciones. El presente artículo describe tanto los fundamentos de la teoría de los recursos y capacidades de la empresa como el enfoque de la gestión del conocimiento, con sus procesos de generación y transferencia del conocimiento. Estos sirven de guía básica teórica para alcanzar el siguiente objetivo: Diseñar un modelo de generación y transferencia de conocimiento para los procesos de dirección, gestión humana y del conocimiento para PyMES, con el fin de que éstas alcancen mayores niveles de competitividad. El modelo se diseña, a partir del direccionamiento estratégico de la organización. Está conformado por tres etapas, articuladas con elementos y actividades. Las acciones se enfocan en dos factores clave de éxito: la cultura organizacional y la formación. La utilización del modelo permitirá a las PyMES optimizar los recursos y capacidades disponibles, lo cual se refleja en el desempeño del trabajador y en el fortalecimiento de la cultura organizacional.

  20. Carriles para alta velocidad. Comportamiento en fatiga

    Directory of Open Access Journals (Sweden)

    Duart, J. M.

    2005-02-01

    Full Text Available In recent years, passanger train speed and freight train load have increased to enhance efficiency of rail road transportation. These trends have increased the severity of rail service conditions, calling for rails with greager wear resistance, strength and fatigue behavior. In the United States and Europe, track site weld rails are made entirely by alumino thermic process. This work describe the results of experimental study conducted on bending fatigue strength of plain rails and alumino thermic welded rails with preheating procedures (oxipropane and air-induced propane approved by railways authorities. Compliance with the required fatigue strength shall be ascertained by 4 point pulsating bending test in accordance with European standard by alumino thermic weld in rails. The Locati method, based in the empirical Miner's law about the cumulative damage on a fatigue tested material, allows, once known the Wohler curve of the welding process in use to settle the fatigue tensile limit at 50% with only one test. The values obtained at 2.10 cycles for plain rails (Sf = 353 MPa, oxipropane preheated aluminothermic weld rails (Sf = 225 MPa, and propane-air induced aluminothermic weld rails (Sf = 210 MPa are very similar to those resulting from test method stated in the European Standard. From our point of view and due to its ease, speediness and savings, this is the most suitable test to check the quality and compare the aluminothermic processes in use.

    En los últimos años la eficiencia de los FECC, tanto para el transporte de viajeros como de mercancías, ha experimentado un desarrollo espectacular. Ello, ha sido posible gracias, entre otros factores, a la fabricación de carriles con resistencia al desgaste, carga de rotura y resistencia a fatiga mejoradas. La soldadura de los carriles, en Europa y U.S.A. se realiza "in situ" por aluminotermia con precalentamiento de los carriles con oxipropano o propano

  1. Transport of radioactive substances; Der Transport radioaktiver Stoffe

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2014-12-15

    The report on the transport of radioactive substances covers the following topics: facts on radioactive materials transport, safety of the transport of radioactive substances, legal regulations and guidelines: a multiform but consistent system, transport of nuclear fuels, safety during the transport of nuclear fuel, future transport of spent fuel elements and high-level radioactive wastes in Germany.

  2. Estudio de los métodos para la evaluación de los proveedores para una empresa de fabricación de maquinaria agrícola

    OpenAIRE

    Vilalta Martí, Josep M.

    2012-01-01

    El objeto de este proyecto es el estudio de los métodos para la evaluación de los proveedores para una empresa de fabricación de maquinaria agrícola y la implantación de la misma. Concretamente maquinaria agrícola pesada destinada al transporte de productos agrícolas. Dicha fábrica estará situada en la provincia de Lérida.

  3. Stochastic models of intracellular transport

    KAUST Repository

    Bressloff, Paul C.; Newby, Jay M.

    2013-01-01

    mechanisms for intracellular transport: passive diffusion and motor-driven active transport. Diffusive transport can be formulated in terms of the motion of an overdamped Brownian particle. On the other hand, active transport requires chemical energy, usually

  4. The Transport of Radioactive Materials under special arrangement

    International Nuclear Information System (INIS)

    Biaggio, A.L.; Vietri, J.R.L.

    1993-01-01

    The Agency's Regulations for the Safe Transport of Radioactive Material rule the international transport of these materials and provide the basis of national and regional regulations. The Regulations establish the technical, operational and administrative requirements which shall be accomplished to carry out the transport of radioactive materials (RAM). They also allow the transport in different conditions of those currently applicable and, in such cases, establish that the transport shall be made under special arrangement. To approve a transport under special arrangement the involved Competent Authority shall be satisfied that the alternative provisions are adequate to ensure that the overall level of safety in transport and in-transit storage is at least equivalent to that which would be provided if all the applicable requirements had been met (para. 2ll of the International Atomic Energy Agency Safety Series No. 6). This paper explains some difficulties the Argentine Competent. Authority has experienced trying by comparing the equivalence between the level of safety resulting from the compliance with current requirements and the overall level of safety which is provided by the application of alternative provisions. As most of the experience gained come from the transport of RAM by road, only this mode of transport is considered. (J.P.N.)

  5. Coccocypselum pulchellum (Rubiaceae, nuevo registro para Argentina

    Directory of Open Access Journals (Sweden)

    Elsa L. Cabral

    2007-01-01

    Full Text Available Se cita Coccocypselum pulchellum por primera vez para Argentina, en Predio Guaraní, Misiones. Esta es la tercera especie de Coccocypselum registrada para la flora de Argentina junto con C. hasslerianum y C. lanceolatum. Se incluyen descripciones, ilustraciones y una clave para reconocer las tres especies argentinas de Coccocypselum.

  6. Modelling of transport phenomena

    International Nuclear Information System (INIS)

    Itoh, Kimitaka; Itoh, Sanae; Fukuyama, Atsushi.

    1993-09-01

    In this review article, we discuss key features of the transport phenomena and theoretical modelling to understand them. Experimental observations have revealed the nature of anomalous transport, i.e., the enhancement of the transport coefficients by the gradients of the plasma profiles, the pinch phenomena, the radial profile of the anomalous transport coefficients, the variation of the transport among the Bohm diffusion, Pseudo-classical confinement, L-mode and variety of improved confinement modes, and the sudden jumps such as L-H transition. Starting from the formalism of the transport matrix, the modelling based on the low frequency instabilities are reviewed. Theoretical results in the range of drift wave frequency are examined. Problems in theories based on the quasilinear and mixing-length estimates lead to the renewal of the turbulence theory, and the physics picture of the self-sustained turbulence is discussed. The theory of transport using the fluid equation of plasma is developed, showing that the new approach is very promising in explaining abovementioned characteristics of anomalous transport in both L-mode and improved confinement plasmas. The interference of the fluxes is the key to construct the physics basis of the bifurcation theory for the L-H transition. The present status of theories on the mechanisms of improved confinement is discussed. Modelling on the nonlocal nature of transport is briefly discussed. Finally, the impact of the anomalous transport on disruptive phenomena is also described. (author) 95 refs

  7. Transport, energy and environment

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-01

    Transportation demands a large and increasing share of total energy consumption in Europe. At the same time many European countries are facing difficult decisions in achieving their long term environmental goals. Therefore energy policy, environmental policy and transport policy should be seen and discussed in a common perspective. In particular the relative contribution from the transport sector and the energy sector involves a number of important and difficult issues. The aim of the conference was to bring together economists, scientists, manufactures, energy planners, transport planners, and decision makers in order to discuss the importance of the transport sector in relation to energy demand and long term environmental goals. General conference sessions covered. Trends in Transport Energy Demand and Environmental constraints, Technological Development and New Transport Systems, Lifestyle Changes and the Transport Sector, Megacities: Solutions to the Transport and Air Pollution Problems, Effectiveness of Public Policies, Transport and Energy sector, and Methods, Models and Data. The conference took place at Hotel Marienlyst, Elsinore, Denmark and attracted wide interest. The participants represented 14 different countries covering international organisations, ministries, universities, research centres, consulting firms, industry etc. (EG)

  8. FRANQUICIAS. Una Alternativa para Emprendedores

    Directory of Open Access Journals (Sweden)

    Jorge Enrique Silva Duarte

    2003-07-01

    Full Text Available Este artículo presenta las ventajas de las franquicias como alternativa de negocios. Para un emprendedor exitoso ya establecido es más rentable permitir el uso de su conocimiento explícito mediante el formato de negocio de su firma y recibir regalías mensuales sobre las ventas brutas, que invertir en la apertura de cada nuevo punto. Igualmente, para quien desee iniciarse como empresario, la modalidad de franquicia es muy interesante: en primer lugar, porque empieza con un negocio ya probado, utiliza la imagen extendida de la franquicia y recibe un apoyo corporativo del franquiciador; adicionalmente, detrás del formato de negocio que contrata, está el capital relacional, en otras palabras, la experticia del franquiciador, el conocimiento del mercado, la base de clientes y de proveedores y el capital humano.

  9. Development of AL{sub 2}O{sub 3} - ZrO{sub 2} ceramic composite reinforced with rare earth oxides (Y{sub 2}O)3) for inert coating of storage and transport systems of crude petroleum; Desenvolvimento de composito ceramico Al{sub 2}O{sub 3} - ZrO{sub 2} reforcada com oxido de terra rara para sistema de armazenamento e transporte de petroleo cru

    Energy Technology Data Exchange (ETDEWEB)

    Silva, J.C.; Yadava, Y.P.; Sanguinetti Ferreira, R.A.; Albuquerque, L.T., E-mail: juliana.carvalhosilva@ufpe.br [Universidade Federal de Pernambuco (UFPE), Jaboatao de Guararapes, PE (Brazil). Centro de Tecnologia. Departamento de Engenharia Mecanica

    2014-07-01

    The advancement of the oil sector has generated the need for the use of materials resistant to aggressive environments to oil. Although ceramics have high melting point and high hardness is, on the other hand, more fragile and less tough, which can cause damage to the metal structure. The Al{sub 2}O{sub 3} based ceramics reinforced with rare earth oxide can improve tenaciousness and makes the ceramic material more resistant. This article aims to present the production of composite Al{sub 2}O{sub 3} - Y{sub 2}O{sub 3} stabilized ZrO{sub 2} by uniaxial pressing, following sintering (1200-1350 deg C). Structural and microstructural characterizations as XRD (X-Ray Diffraction) and SEM (Scanning Electron Microscopy) and mechanical tests as Vickers hardness, % absorption and % linear shrinkage were conducted to evaluate the feasibility of using the composite and ceramic coating for storage and transportation of oil tanks. The results indicate that the proportions of 5%, 10% and 30% ZrO{sub 2} make it suitable as a good composite suitable coating. (author)

  10. Limitaciones del Transporte Aerocomercial al desarrollo del turismo. Análisis de caso: transporte interno en Argentina

    Directory of Open Access Journals (Sweden)

    MG. Noemí Wallingre

    2009-11-01

    Full Text Available Desde sus orígenes el transporte aéreo fue fundamental para el impulso del turismo siendo sus avances en muchos países de forma interdependiente. Aparentemente, no es el caso argentino a pesar de la contribución que esa modalidad del transporte, representa para el sector turismo. En 1989 Argentina aprobó una Reforma del Estado que produjo importantes transformaciones que afectaron tanto al transporte aéreo como al turismo. Este artículo analizará esas transformaciones y el impacto que produjeron sobre la oferta y la demanda del transporte aéreo interno; así como sobre la relación entre el crecimiento de la demanda turística, la participación del turismo sobre los ingresos y el empleo, el incremento del alojamiento y el transporte aerocomercial. Para el transporte aerocomercial interno se analizará la variación en la cantidad de vuelos semanales, empresas, flotas y en el tráfico regular de pasajeros El estudio se extenderá entre 1990-2007. Se procurará demostrar las limitaciones que sobre el desarrollo del turismo puede producir la ausencia de políticas para el crecimiento del transporte aerocomercial interno. En síntesis, el trabajo se propone los siguientes objetivos: – Presentar las transformaciones desde la implementación de la Reforma del Estado argentino en el transporte aerocomercial interno y el turismo. – Indagar sobre la relación existente entre el crecimiento de los movimientos turísticos, la oferta de alojamiento y el transporte aéreo, y de la participación del turismo sobre los ingresos por exportación. Reflexionar sobre el impacto en el desarrollo del turismo de la falta de políticas en el transporte aéreo interno, y en la coordinación entre ambos sectores.

  11. Financiamiento para construir la finca.

    Directory of Open Access Journals (Sweden)

    Túpac Barahona.

    1998-08-01

    Full Text Available Las instituciones financieras convencionales y no convencionales tienden a excluir de los servicios de crédito a los sectores más frágiles del campesinado, por considerarlos clientes altamente riesgosos. En este artículo, se discute el sentido económico y social que tendrían que desarrollar esquemas de financiamiento para campesinos con economías débiles, pero con un potencial de desarrollo latente.

  12. Argumentos para repensar el "desarrollo"

    Directory of Open Access Journals (Sweden)

    María Luisa Eschenhagen

    2001-06-01

    Full Text Available Con este trabajo se quiere hacer una aproximación al problema desde una perspectiva diferente, considerando nuevos argumentos que hasta hace muy poco tiempo no se habían tenido en cuenta y que se vienen formulando de una manera muy interesante en los últimos años. El objetivo del artículo es presentar tres argumentos para señalar la necesidad de repensar, desde sus fundamentos, el concepto de desarrollo.

  13. Energy policy in transport and transport policy

    International Nuclear Information System (INIS)

    Van Dender, Kurt

    2009-01-01

    Explanations for, and indirect evidence of, imperfections in the market for private passenger vehicle fuel economy suggest there is a reasonable case for combining fuel economy standards and fuel or carbon taxes to contribute to an energy policy that aims to reduce greenhouse gas emissions and improve energy security. Estimates of key elasticities, including the rebound effect, indicate that the positive and negative side-effects of fuel economy measures on transport activities and external costs are limited. However, an energy policy for transport does not replace a transport policy that aims to manage the main transport externalities including congestion and local pollution. Conventional marginal cost estimates and standard cost-benefit reasoning suggest that policies that address congestion and local pollution likely bring benefits at least as large as those from fuel economy measures. But the large uncertainty on the possible effects of greenhouse gas emissions constitutes a strong challenge for standard cost-benefit reasoning. Emerging results from methods to cope with this uncertainty suggest that policies to stimulate the widespread adoption of low-carbon technologies in transport are justified.

  14. Energy policy in transport and transport policy

    Energy Technology Data Exchange (ETDEWEB)

    Van Dender, Kurt [Joint Transport Research Centre of the International Transport Forum and the OECD, 2 rue Andre Pascale, F-75775 Paris Cedex 16 (France)

    2009-10-15

    Explanations for, and indirect evidence of, imperfections in the market for private passenger vehicle fuel economy suggest there is a reasonable case for combining fuel economy standards and fuel or carbon taxes to contribute to an energy policy that aims to reduce greenhouse gas emissions and improve energy security. Estimates of key elasticities, including the rebound effect, indicate that the positive and negative side-effects of fuel economy measures on transport activities and external costs are limited. However, an energy policy for transport does not replace a transport policy that aims to manage the main transport externalities including congestion and local pollution. Conventional marginal cost estimates and standard cost-benefit reasoning suggest that policies that address congestion and local pollution likely bring benefits at least as large as those from fuel economy measures. But the large uncertainty on the possible effects of greenhouse gas emissions constitutes a strong challenge for standard cost-benefit reasoning. Emerging results from methods to cope with this uncertainty suggest that policies to stimulate the widespread adoption of low-carbon technologies in transport are justified. (author)

  15. Factores que condicionan el rendimiento del transporte

    Directory of Open Access Journals (Sweden)

    Mediavilla, A.

    1963-09-01

    Full Text Available The efficiency of motor transport depends on the rational and precise coordination of the various factors which affect movement by motor vehicles, namely: Correct space and time planning. Speed, by using suitable material and exploiting effectively the power and the capacity of the drivers. Continuity of performance, due to a systematic and efficient maintenance service and intelligent traffic control. Flexibility to introduce modifications in the existing schedules, without interrupting the flow of traffic. By applying effectively the above principles it will be possible to organise transport in the best possible manner. Briefly the above requirements can be summarised thus: «to place, rapidly and regularly, at the preappointed places, all the necessary material for the execution of a particular project».El rendimiento del transporte efectuado por vehículos automóviles, depende de la coordinación racional y armónica de los principios que rigen los movimientos motorizados: Ordenación en tiempo y espacio. Rapidez, mediante el uso del adecuado material y el aprovechamiento de su potencia y de la capacidad de los conductores. Continuidad, merced a un entretenimiento constante y eficaz y a tina inteligente regulación del tráfico. Flexibilidad para introducir, en los movimientos, las modificaciones que se estimen convenientes, sin interrumpir los desplazamientos. Con la aplicación acertada de estos principios se logrará cumplir, en condiciones óptimas, la misión del transporte, la cual puede ser definida como: «situar, con rapidez y regularidad en los lugares prefijados, todos los elementos precisos para el normal desarrollo y ejecución de un plan».

  16. Puente mixto para ferrocarril y carretera

    Directory of Open Access Journals (Sweden)

    Harris, P. C.

    1963-10-01

    Full Text Available This new bridge, known as the West Branch, spans the course of a river, and has a double function and two superimposed decks. One of these carries the road, and the other lower one, the railway line. It has been constructed by the Dept. of Public Works of California. The structure consists of four main spans resting on reinforced concrete piles, of great height. Four rectangular holes run down their centres. The decks consist of a continuous metal framework, made up of heavy elements, some of them weighing up to 56 tons each, was assembled in the workshop in separate sections. These were then transported to the site, to be integrated within the whole structure. In the final assembly high tensile steel bolts were employed. As the piles are very high, they are of varying cross section, according to the height. The concreting was done by means of sliding formwork, and this was sufficiently wide to ensure that the concrete was at least four hours old when the formwork passed beyond its level. To carry out these operations an auxiliary tower was built up. which supported the framework carrying the concreting tub and its pouring mechanism. From this main tub the concrete was poured into others, which placed it into the various parts of the formwork. The operation of the concrete elevator, whose motive power was provided by of the plant at ground level, was controlled by telephone between the operator of the power plant and the person responsible for distributing the concrete on the top platform. To provide the finish of the surfaces left by the sliding formwork, another platform was installed, working at a level below the lower edge of the formwork, and a similar arrangement was adopted with respect to the inner formwork for the four hollows running inside the piles.El nuevo puente, llamado West Branch, que salva el profundo cauce de un río, tiene una doble finalidad y dos tableros superpuestos: uno para carretera en la parte superior y otro para una

  17. para asegurar un hijo sano

    Directory of Open Access Journals (Sweden)

    Carmen Amarilis Guerra de Castillo

    2006-01-01

    Full Text Available Esta investigación etnográfica focalizada exploró las creencias, los valores, los hábitos y los padrones comportamentales de las embarazadas diabéticas atendidas en el Hospital Doctor Enrique Tejera, quienes residen en tres comunidades urbanas pobres de la ciudad de Valencia - Venezuela, con el objetivo de encontrar el significado del cuidado de si para dichas grávidas. Se utilizó como referencial teórico el Modelo del Análisis de la Salud y la Teoría Antropológica de la Salud, siendo fundamentales para revelar aquello que estaba implícito en el comportamiento de las mujeres con relación a su cuidado. Surgieron tres temas: la salud y la enfermedad - valores culturales del cuidado de si; las prácticas del cuidado de la salud y cuidándose en el embarazo garantiza tener un hijo más saludable. Los temas culturales revelaron que las creencias, los valores, los hábitos y los patrones culturales comportamentales, conforme las tres maneras de acción identificadas, pueden ser preservadas, acomodadas y re-estructuradas para proporcionar un cuidado culturalmente congruente.

  18. Condiciones para el aprendizaje organizacional

    Directory of Open Access Journals (Sweden)

    Delio Ignacio Castañeda

    2015-01-01

    Full Text Available El propósito de esta investigación es contribuir al entendimiento de algunas condiciones que favorecen el aprendizaje en las organizaciones, específicamente el rol de la cultura del aprendizaje, la formación, la claridad estratégica y el soporte organizacional. Se emplea una metodología cuantitativa con 613 participantes, empleados de una organización pública y 2 compañías privadas, las 3 entidades ubicadas en Bogotá, Colombia. Para la realización del estudio se conformó una muestra por conveniencia, con el apoyo de los jefes de recursos humanos de 3 organizaciones con sede en la ciudad de Bogotá, Colombia. Para la recolección de los datos se utilizó una escala Likert de 5 niveles de respuesta. Los resultados sugieren que las 4 condiciones estudiadas contribuyen al aprendizaje organizacional. Los hallazgos de este trabajo orientan a profesionales sobre dónde focalizar esfuerzos para promover la adquisición y la generación de conocimiento organizacional y aporta al trabajo investigativo ampliando la evidencia empírica sobre este campo de relevancia organizacional.

  19. Condiciones para el aprendizaje organizacional

    Directory of Open Access Journals (Sweden)

    Delio Ignacio Castañeda

    2015-01-01

    Full Text Available El propósito de esta investigación es contribuir al entendimiento de algunas condiciones que favorecen el aprendizaje en las organizaciones, específicamente el rol de la cultura del aprendizaje, la formación, la claridad estratégica y el soporte organizacional. Se emplea una metodología cuantitativa con 613 participantes, empleados de una organización pública y 2 compa˜nías privadas, las 3 entidades ubicadas en Bogotá, Colombia. Para la realización del estudio se conformó una muestra por conveniencia, con el apoyo de los jefes de recursos humanos de 3 organizaciones con sede en la ciudad de Bogotá, Colombia. Para la recolección de los datos se utilizó una escala Likert de 5 niveles de respuesta. Los resultados sugieren que las 4 condiciones estudiadas contribuyen al aprendizaje organizacional. Los hallazgos de este trabajo orientan a profesionales sobre dónde focalizar esfuerzos para promover la adquisición y la generación de conocimiento organizacional y aporta al trabajo investigativo ampliando la evidencia empírica sobre este campo de relevancia organizacional.

  20. EBS Radionuclide Transport Abstraction

    International Nuclear Information System (INIS)

    J. Prouty

    2006-01-01

    The purpose of this report is to develop and analyze the engineered barrier system (EBS) radionuclide transport abstraction model, consistent with Level I and Level II model validation, as identified in Technical Work Plan for: Near-Field Environment and Transport: Engineered Barrier System: Radionuclide Transport Abstraction Model Report Integration (BSC 2005 [DIRS 173617]). The EBS radionuclide transport abstraction (or EBS RT Abstraction) is the conceptual model used in the total system performance assessment (TSPA) to determine the rate of radionuclide releases from the EBS to the unsaturated zone (UZ). The EBS RT Abstraction conceptual model consists of two main components: a flow model and a transport model. Both models are developed mathematically from first principles in order to show explicitly what assumptions, simplifications, and approximations are incorporated into the models used in the TSPA. The flow model defines the pathways for water flow in the EBS and specifies how the flow rate is computed in each pathway. Input to this model includes the seepage flux into a drift. The seepage flux is potentially split by the drip shield, with some (or all) of the flux being diverted by the drip shield and some passing through breaches in the drip shield that might result from corrosion or seismic damage. The flux through drip shield breaches is potentially split by the waste package, with some (or all) of the flux being diverted by the waste package and some passing through waste package breaches that might result from corrosion or seismic damage. Neither the drip shield nor the waste package survives an igneous intrusion, so the flux splitting submodel is not used in the igneous scenario class. The flow model is validated in an independent model validation technical review. The drip shield and waste package flux splitting algorithms are developed and validated using experimental data. The transport model considers advective transport and diffusive transport

  1. EBS Radionuclide Transport Abstraction

    Energy Technology Data Exchange (ETDEWEB)

    J. Prouty

    2006-07-14

    The purpose of this report is to develop and analyze the engineered barrier system (EBS) radionuclide transport abstraction model, consistent with Level I and Level II model validation, as identified in Technical Work Plan for: Near-Field Environment and Transport: Engineered Barrier System: Radionuclide Transport Abstraction Model Report Integration (BSC 2005 [DIRS 173617]). The EBS radionuclide transport abstraction (or EBS RT Abstraction) is the conceptual model used in the total system performance assessment (TSPA) to determine the rate of radionuclide releases from the EBS to the unsaturated zone (UZ). The EBS RT Abstraction conceptual model consists of two main components: a flow model and a transport model. Both models are developed mathematically from first principles in order to show explicitly what assumptions, simplifications, and approximations are incorporated into the models used in the TSPA. The flow model defines the pathways for water flow in the EBS and specifies how the flow rate is computed in each pathway. Input to this model includes the seepage flux into a drift. The seepage flux is potentially split by the drip shield, with some (or all) of the flux being diverted by the drip shield and some passing through breaches in the drip shield that might result from corrosion or seismic damage. The flux through drip shield breaches is potentially split by the waste package, with some (or all) of the flux being diverted by the waste package and some passing through waste package breaches that might result from corrosion or seismic damage. Neither the drip shield nor the waste package survives an igneous intrusion, so the flux splitting submodel is not used in the igneous scenario class. The flow model is validated in an independent model validation technical review. The drip shield and waste package flux splitting algorithms are developed and validated using experimental data. The transport model considers advective transport and diffusive transport

  2. Construyendo campos para el aprendizaje creativo. Método del juego

    Directory of Open Access Journals (Sweden)

    Paco Cerezo Sánchez

    2008-01-01

    Full Text Available Este documento presenta el marco teórico, el camino recorrido y los resultados de una experiencia piloto para la formación de formadores y de trabajadores del sector de transportes, experiencia hecha para desarrollar competencias interpersonales.Avanzamos desde el constructivismo y proponemos un método de aprendizaje en grupo, denominado Método del juego porque se basa en juegos sociales experienciados por los participantes (alumnos durante el taller.Aquí, hablo de los contenidos formativos - dirigidos especialmente a la formación de formadores- y también de la forma de aprender y de la estructura oculta en los procesos de aprendizaje. Describo un marco teórico que permite aplicar métodos de aprendizaje grupal y creativo para la formación continua, y aporto herramientas para que los formadores las adapten y construyan sus propios juegos didácticos. El marco creativo de aprendizaje y este método del juego nacen de experiencias entrenando a actores de teatro de calle (desde 1983, formadores y directivos (desde 1991 y aplicaciones para eLearning (1996-2007 en diferentes sectores y países europeos; experiencia consolidada con el equipo de www.formador.org (2005-2008. Al principio usaba juegos extraídos del circo, ahora son juegos sociales o de mesa.El marco creativo y el método del juego aquí propuestos sirven para desarrollar: el potencial humano, la autonomía personal, la creatividad y la innovación, las competencias interpersonales, de trabajo en equipo, para comprender y solucionar conflictos; la habilidad para comprender y solucionar problemas complejos; la habilidad para aprender a aprender.Así, esta propuesta para aprender jugando en grupo recoge las experiencias acumuladas durante 20 años formando formadores y complementa a otras investigaciones y productos1, muchos de ellos específicos para la formación de formadores. Para Aprender jugando en grupo hemos creado un paquete integrado por el marco teórico creador de

  3. Transportation: Grade 8. Cluster IV.

    Science.gov (United States)

    Calhoun, Olivia H.

    A curriculum guide for grade 8, the document is devoted to the occupational cluster "Transportation." It is divided into five units: surface transportation, interstate transportation, air transportation, water transportation, and subterranean transportation (the Metro). Each unit is introduced by a statement of the topic, the unit's…

  4. Transport Energy Efficiency

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2010-07-01

    Transport is the sector with the highest final energy consumption and, without any significant policy changes, is forecast to remain so. In 2008, the IEA published 25 energy efficiency recommendations, among which four are for the transport sector. The recommendations focus on road transport and include policies on improving tyre energy efficiency, fuel economy standards for both light-duty vehicles and heavy-duty vehicles, and eco-driving. Implementation of the recommendations has been weaker in the transport sector than others. This paper updates the progress that has been made in implementing the transport energy efficiency recommendations in IEA countries since March 2009. Many countries have in the last year moved from 'planning to implement' to 'implementation underway', but none have fully implemented all transport energy efficiency recommendations. The IEA calls therefore for full and immediate implementation of the recommendations.

  5. Transportation Emissions: some basics

    DEFF Research Database (Denmark)

    Kontovas, Christos A.; Psaraftis, Harilaos N.

    2016-01-01

    transportation and especially carbon dioxide emissions are at the center stage of discussion by the world community through various international treaties, such as the Kyoto Protocol. The transportation sector also emits non-CO2 pollutants that have important effects on air quality, climate, and public health......Transportation is the backbone of international trade and a key engine driving globalization. However, there is growing concern that the Earth’s atmospheric composition is being altered by human activities, including transportation, which can lead to climate change. Air pollution from....... The main purpose of this chapter is to introduce some basic concepts that are relevant in the quest of green transportation logistics. First, we present the basics of estimating emissions from transportation activities, the current statistics and future trends, as well as the total impact of air emissions...

  6. Astrocytic GABA Transporters

    DEFF Research Database (Denmark)

    Schousboe, Arne; Wellendorph, Petrine; Frølund, Bente

    2017-01-01

    , and several of these compounds have been shown to exhibit pronounced anticonvulsant activity in a variety of animal seizure models. As proof of concept of the validity of this drug development approach, one GABA-transport inhibitor, tiagabine, has been developed as a clinically active antiepileptic drug......Inactivation of GABA-mediated neurotransmission is achieved by high-affinity transporters located at both GABAergic neurons and the surrounding astrocytes. Early studies of the pharmacological properties of neuronal and glial GABA transporters suggested that different types of transporters might...... be expressed in the two cell types, and such a scenario was confirmed by the cloning of four distinctly different GABA transporters from a number of different species. These GABA-transport entities have been extensively characterized using a large number of GABA analogues of restricted conformation...

  7. Nueva Sede para la Academia

    Directory of Open Access Journals (Sweden)

    Mario Camacho Pinto

    1994-06-01

    Full Text Available

    Una nueva sede adecuadamente dotada siempre estuvo en la mente de nuestros expresidentes Académicos César Augusto Pantoja, Hernando Groot, Pablo Gómez Martínez, Jorge Cavelier Gaviria y Efraim Otero-Ruiz, con quienes me tocó en suerte trabajar 12 años consecutivos, cerca de ellos a través de mi cargo de Coordinardor de la Comisión Permanente de Biblioteca y Publicaciones y de la Revista MEDICINA que se ha venido publicando sin interrupciones dentro de un compañerismo ejemplar; además de otras distinciones operativas que me inducen a expresar gratitud.

    Ahora, además, como Secretario de la Coporación por elección unánime de la Asamblea hace dos años, he sido testigo ático de una intensa, inteligente e inagotable actividad que nuestro Presidente Académico Juan Jacobo Muñoz Delgado quien siempre con el visto bueno de la Junta Directiva, mediante un acelerado ritmo de trabajo se impuso la tarea de convertir en realidad inmediata tan anhelada y necesaria idea.

    En efecto, la nueva sede fue inaugurada oficialmente el día 2 de septiembre de 1993.

    Este Editorial es la constancia escrita de tal febril actividad que para proporcionar evidencia a los lectores de “MEDICINA” resumo en breves incisos que muestran el tránsito a un estado con superávit de excepción para esta clase de instituciones:

    1. Terminación de la obra ya iniciada de la remodelación arquitectónica, tanto exterior de seguridad y aspecto como interior con suficientes y modernas instalaciones.

    2. Cerramiento total con altas y elegantes rejas metálicas y doble portería por la calle 69 y la carrera 7a.

    3. Aparcadero lujosamente adoquinado, amplio y seguro para 30 automóviles.

    4. Decoración interior estéticamente consultada, bien lograda en cortinas y clásicas lámparas de cristal obsequiadas por conocidos académicos. Un par de originales urnas precolombianas en el hall de entrada.

    5. Zona social doble, amplia

  8. Redes de transporte ferroviario metropolitano en Andalucía

    Directory of Open Access Journals (Sweden)

    Antonio Gavira Narváez

    2011-12-01

    Full Text Available REVISTA DE ESTUDIOS ANDALUCES (REA Ayuda de la revista USUARIO/A Nombre de usuario/a Contraseña •••••••••• No cerrar sesión Iniciar sesión NOTIFICACIONES Ver Suscribirse IDIOMA CONTENIDO DE LA REVISTA Buscar Buscar Examinar Por número Por autor/a Por título Otras revistas Categorías TAMAÑO DE FUENTE Make font size smallerMake font size defaultMake font size larger INFORMACIÓN Para los lectores/as Para los autores/as Para los bibliotecarios/as INICIO ACERCA DE INICIAR SESIÓN REGISTRARSE CATEGORÍAS BUSCAR ACTUAL ARCHIVOS AVISOS Inicio > Vol. 28, núm. 1 (2011 >\tGavira-Narváez Redes de transporte ferroviario metropolitano en Andalucía. Antonio Gavira-Narváez Resumen En los últimos años se han emprendido diversas mejoras en las redes ferroviarias de transporte metropolitano (Cercanías, metro y tranvía que han propiciado un incremento del número de viajeros, así como la adecuación de los servicios para que puedan tener acceso un mayor número de habitantes. Estas actuaciones han favorecido una reducción del uso del automóvil, así como menores afecciones al clima de las poblaciones que se han beneficiado de su puesta en funcionamiento. El desarrollo de estos servicios de transporte son fundamentales en la situación socioeconómica actual, pues favorece la movilidad de colectivos que no tienen acceso a medios de transporte privado. Asimismo, la oportuna implantación ha acarreado que muchos de estos servicios sean más competitivos con respecto al resto de medios de transporte en calidad y precio, lo que potencia su competitividad.

  9. Transport of radioactive wastes

    International Nuclear Information System (INIS)

    Stuller, C.

    2003-01-01

    In this article author describes the system of transport and processing of radioactive wastes from nuclear power of Slovenske elektrarne, plc. It is realized the assurance of transport of liquid and solid radioactive wastes to processing links from places of their formation, or of preliminary storage and consistent transports of treated radioactive wastes fixed in cement matrix of fibre-concrete container into Rebublic storage of radioactive wastes in Mochovce

  10. Transport of radioactive materials

    International Nuclear Information System (INIS)

    1991-07-01

    The purpose of this Norm is to establish, relating to the TRANSPORT OF RADIOACTIVE MATERIALS, safety and radiological protection requirements to ensure an adequate control level of the eventual exposure of persons, properties and environment to the ionizing radiation comprising: specifications on radioactive materials for transport; package type selection; specification of the package design and acceptance test requirements; arrangements relating to the transport itself; administrative requirements and responsibilities. (author)

  11. Radioactive material air transportation

    International Nuclear Information System (INIS)

    Pader y Terry, Claudio Cosme

    2002-01-01

    As function of the high aggregated value, safety regulations and the useful life time, the air transportation has been used more regularly because is fast, reliable, and by giving great security to the cargo. Based on the International Atomic Energy Agency (IAEA), the IATA (International Air Transportation Association) has reproduced in his dangerous goods manual (Dangerous Goods Regulations - DGR IATA), the regulation for the radioactive material air transportation. Those documents support this presentation

  12. Handling and Transport Problems

    Energy Technology Data Exchange (ETDEWEB)

    Pomarola, J. [Head of Technical Section, Atomic Energy Commission, Saclay (France); Savouyaud, J. [Head of Electro-Mechanical Sub-Division, Atomic Energy Commission, Saclay (France)

    1960-07-01

    Arrangements for special or dangerous transport operations by road arising out of the activities of the Atomic Energy Commission are made by the Works and Installations Division which acts in concert with the Monitoring and Protection Division (MPD) whenever radioactive substances or appliances are involved. In view of the risk of irradiation and contamination entailed in handling and transporting radioactive substances, including waste, a specialized transport and storage team has been formed as a complement to the emergency and decontamination teams.

  13. Transport Nuclear Liability Insurance

    International Nuclear Information System (INIS)

    Folens, M.

    2006-01-01

    Although transport of nuclear substances represents only a very small part of the global transport of dangerous goods, it takes place every day all over the world and it is part of our daily life. Transport of nuclear material takes also place at every stage of the nuclear fuel cycle; radioactive materials are carried out all over the world by all major modes of transport: sea, air, road and rail. Despite the large number of nuclear transports, they are not considered as posing a serious risk. A major nuclear incident is almost always associated with the operating of fixed installations such as nuclear power plants; just think about Three Mile Island and Chernobyl. This perception is strengthened by the absence so far of serious accidents in the nuclear transport sector and this finding is in fact proof of the very safe conditions of nuclear transport. But accidents can never be excluded entirely and in some cases damages could be as large as those caused by fixed installations. This means that protection of the interests of possible victims should also be covered in a correct way. That is why the special nuclear liability regime has also been developed to cover damage caused by a nuclear transport accident. As stated by Patrick Reyners, the prime motivation for originally adopting a special nuclear regime was the harmonisation of national legislation and that nowhere more than in the field of international transport operations is such harmonisation felt desirable . The international legal regime has been developed along two tracks, one based on the mode of transport and the other based on the notion of dangerous goods. The linkage between those two tracks is of permanent concern and the mode of transport is the key element to determine which international instrument should be applicable. The purpose of this paper is to briefly introduce the financial security provided by the insurance industry to cover the international nuclear liability regime for nuclear

  14. Freight transport and intermodality

    OpenAIRE

    Barbero Mañanes, Eduardo

    2010-01-01

    During recent decades, there has been very substantial growth in the freight transport sector. Freight transport is increasing faster than the economy or passenger transport. Demand is increasing more rapidly than supply and is resulting in environmental and social problems. Increasing congestion, too, is affecting efficient and reliable freight distribution, and consequently having a deleterious effect on local economies. Intermodality is therefore needed to make better use of alternative mo...

  15. Climate Change and Transportation

    OpenAIRE

    Yevdokimov, Yuri

    2010-01-01

    As stated at the beginning of this chapter, the relationship between transportation and climate is two-directional. Based on our statistical analysis performed for Canada, we can make some general conclusions about this relationship. On the one hand, transportation is one of the largest contributors to GHG emissions which, in turn, cause various changes in climate. On the other hand, these climate changes negatively affect transportation in terms of its infrastructure and operations. Therefor...

  16. Diseño e implementación de un sistema de control y monitoreo de manejo de lotes para los procesos de: almacenaje, transporte y despacho de materias primas en los predios de una planta de elaboración de cerveza

    OpenAIRE

    Ortiz Campos, Mario Augusto; Martin Moreno, Cesar Antonio

    2009-01-01

    El sistema de manejo de granos constituye la primera fase en el proceso de elaboración de cerveza y desempeña un papel muy importante en la dosificación de materias primas. El siguiente articulo presenta la implementación de un sistema de control capaz de manejar los procesos de recepción, transporte, almacenaje y despacho de dos tipos de productos: arroz y malta (cebada malteada), este último utilizado en diferentes variedades. Se considera el control de lotes y dosificación de materi...

  17. Transport barriers in plasmas

    International Nuclear Information System (INIS)

    Caldas, I L; Szezech, J D Jr; Kroetz, T; Marcus, F A; Roberto, M; Viana, R L; Lopes, S R

    2012-01-01

    We discuss the creation of transport barriers in magnetically confined plasmas with non monotonic equilibrium radial profiles. These barriers reduce the transport in the shearless region (i.e., where the twist condition does not hold). For the chaotic motion of particles in an equilibrium electric field with a nonmonotonic radial profile, perturbed by electrostatic waves, we show that a nontwist transport barrier can be created in the plasma by modifying the electric field radial profile. We also show non twist barriers in chaotic magnetic field line transport in the plasma near to the tokamak wall with resonant modes due to electric currents in external coils.

  18. Urban transportation projects conceptualised:

    DEFF Research Database (Denmark)

    Pineda, Andres Felipe Valderrama

    is straightforward: transportation projects transform cities. The paradoxical reality thus is that a problem that has been traditionally conceptualized in technical terms (transportation engineering, transportation economics, planning theory, traffic engineering, urban planning, etc.), has tremendous consequences...... operation when discussing transportation projects in big cities. The tradition of Science and Technology Studies might have provided some clues. In the following paper we discuss the most prominent aspects of some theories in STS in order to understand and conceptualize the cases of Bogotá and Copenhagen...

  19. WASTE PACKAGE TRANSPORTER DESIGN

    International Nuclear Information System (INIS)

    Weddle, D.C.; Novotny, R.; Cron, J.

    1998-01-01

    The purpose of this Design Analysis is to develop preliminary design of the waste package transporter used for waste package (WP) transport and related functions in the subsurface repository. This analysis refines the conceptual design that was started in Phase I of the Viability Assessment. This analysis supports the development of a reliable emplacement concept and a retrieval concept for license application design. The scope of this analysis includes the following activities: (1) Assess features of the transporter design and evaluate alternative design solutions for mechanical components. (2) Develop mechanical equipment details for the transporter. (3) Prepare a preliminary structural evaluation for the transporter. (4) Identify and recommend the equipment design for waste package transport and related functions. (5) Investigate transport equipment interface tolerances. This analysis supports the development of the waste package transporter for the transport, emplacement, and retrieval of packaged radioactive waste forms in the subsurface repository. Once the waste containers are closed and accepted, the packaged radioactive waste forms are termed waste packages (WP). This terminology was finalized as this analysis neared completion; therefore, the term disposal container is used in several references (i.e., the System Description Document (SDD)) (Ref. 5.6). In this analysis and the applicable reference documents, the term ''disposal container'' is synonymous with ''waste package''

  20. WASTE PACKAGE TRANSPORTER DESIGN

    Energy Technology Data Exchange (ETDEWEB)

    D.C. Weddle; R. Novotny; J. Cron

    1998-09-23

    The purpose of this Design Analysis is to develop preliminary design of the waste package transporter used for waste package (WP) transport and related functions in the subsurface repository. This analysis refines the conceptual design that was started in Phase I of the Viability Assessment. This analysis supports the development of a reliable emplacement concept and a retrieval concept for license application design. The scope of this analysis includes the following activities: (1) Assess features of the transporter design and evaluate alternative design solutions for mechanical components. (2) Develop mechanical equipment details for the transporter. (3) Prepare a preliminary structural evaluation for the transporter. (4) Identify and recommend the equipment design for waste package transport and related functions. (5) Investigate transport equipment interface tolerances. This analysis supports the development of the waste package transporter for the transport, emplacement, and retrieval of packaged radioactive waste forms in the subsurface repository. Once the waste containers are closed and accepted, the packaged radioactive waste forms are termed waste packages (WP). This terminology was finalized as this analysis neared completion; therefore, the term disposal container is used in several references (i.e., the System Description Document (SDD)) (Ref. 5.6). In this analysis and the applicable reference documents, the term ''disposal container'' is synonymous with ''waste package''.

  1. EUROPEAN MARITIME TRANSPORT POLICY

    Directory of Open Access Journals (Sweden)

    Jerzy Kujawa

    2014-03-01

    Full Text Available The article describes the common EU policy on maritime transport, which comprises almost 80% of the volume of external trade of the Union and about 40% of internal transport needs. The first part of the paper presents the origins of the common maritime transport policy and the difficulties encountered during its initial formation. Subsequently, the evolution of the concepts of the policy and its current shape is discussed. The final, substantial part of the article describes the main aims and directions of the EU maritime transport policy and includes an evaluation of the effects of the policy.

  2. Intelligent Freigth Transport Systems

    DEFF Research Database (Denmark)

    Overø, Helene Martine; Larsen, Allan; Røpke, Stefan

    2009-01-01

    is to enhance the efficiency and lower the environmental impact in freight transport. In this paper, a pilot project involving real-time waste collection at a Danish waste collection company is described, and a solution approach is proposed. The problem corresponds to the dynamic version of the waste collection......The Danish innovation project entitled “Intelligent Freight Transport Systems” aims at developing prototype systems integrating public intelligent transport systems (ITS) with the technology in vehicles and equipment as well as the IT-systems at various transport companies. The objective...

  3. Moisture Transport in Wood

    DEFF Research Database (Denmark)

    Astrup, Thomas; Hansen, Kurt Kielsgaard; Hoffmeyer, Preben

    2005-01-01

    Modelling of moisture transport in wood is of great importance as most mechanical and physical properties of wood depend on moisture content. Moisture transport in porous materials is often described by Ficks second law, but several observations indicate that this does not apply very well to wood....... Recently at the Technical University of Denmark, Department of Civil Engineering, a new model for moisture transport in wood has been developed. The model divides the transport into two phases, namely water vapour in the cell lumens and bound water in the cell walls....

  4. UZ Colloid Transport Model

    International Nuclear Information System (INIS)

    McGraw, M.

    2000-01-01

    The UZ Colloid Transport model development plan states that the objective of this Analysis/Model Report (AMR) is to document the development of a model for simulating unsaturated colloid transport. This objective includes the following: (1) use of a process level model to evaluate the potential mechanisms for colloid transport at Yucca Mountain; (2) Provide ranges of parameters for significant colloid transport processes to Performance Assessment (PA) for the unsaturated zone (UZ); (3) Provide a basis for development of an abstracted model for use in PA calculations

  5. Heavy transport problems

    International Nuclear Information System (INIS)

    Haas, K.F.

    1975-01-01

    Assuming that very often a long transport route from the factory of the manufacturer to the provided site has to be reckoned with, in general only transport with a ship is possible. As each site is only called by a certain steamship line, at a very early stage of planning the nuclear power plant the possibilities and capacities of the lines and means of transportation under discussion should be investigated. In planning the unloading equipment at the site, due consideration should be given to the fact that at a later time this equipment should also be suitable for the transport of heavy components and spent fuel assemblies. (orig.) [de

  6. Heme transport and erythropoiesis

    Science.gov (United States)

    Yuan, Xiaojing; Fleming, Mark D.; Hamza, Iqbal

    2013-01-01

    In humans, systemic heme homeostasis is achieved via coordinated regulation of heme synthesis, transport and degradation. Although the heme biosynthesis and degradation pathways have been well characterized, the pathways for heme trafficking and incorporation into hemoproteins remains poorly understood. In the past few years, researchers have exploited genetic, cellular and biochemical tools, to identify heme transporters and, in the process, reveal unexpected functions for this elusive group of proteins. However, given the complexity of heme trafficking pathways, current knowledge of heme transporters is fragmented and sometimes contradictory. This review seeks to focus on recent studies on heme transporters with specific emphasis on their functions during erythropoiesis. PMID:23415705

  7. Hopping transport in solids

    CERN Document Server

    Pollak, M

    1991-01-01

    The hopping process, which differs substantially from conventional transport processes in crystals, is the central process in the transport phenomena discussed in this book. Throughout the book the term ``hopping'' is defined as the inelastic tunneling transfer of an electron between two localized electronic states centered at different locations. Such processes do not occur in conventional electronic transport in solids, since localized states are not compatible with the translational symmetry of crystals.The rapid growth of interest in hopping transport has followed in the footsteps of the

  8. Modelo de demanda para un tren de pasajeros entre Tunja y Bogotá

    Directory of Open Access Journals (Sweden)

    Luis Gabriel Márquez

    2009-11-01

    Full Text Available Este artículo presenta los resultados de una encuesta de preferencias declaradas en un experimento de elección discreta, diseñado para examinar la demanda potencial de un nuevo sistema de transporte de pasajeros tipo tren entre Tunja y Bogotá. El estudio investiga acerca del comportamiento en la elección de tres modos de transporte: bus, tren y auto. Cada modo fue representado en términos del costo, tiempo de viaje e intervalo de tiempo entre despachos con un modelo logit mixto que incluye para los individuos la variable asiduidad. El modelo se utilizó para experimentar con distintos escenarios y se encontró para cada uno de ellos el reparto modal correspondiente. / This paper presents the results of stated-preference in a discrete choice experiments designed to examine the potential demand for a new type of passenger train between Tunja and Bogotá. The study investigates choice behaviour between three modes of transportation: bus, train and car. Each mode is represented in terms of cost, travel time and headway with a mixed logit model, which includes regularly for individuals. The model was used to experiment with different scenarios, finding the modal split for each.

  9. TRABALHAR PARA ESTUDAR / ESTUDAR PARA TRABALHAR: REALIDADE E POSSIBILIDADES

    Directory of Open Access Journals (Sweden)

    Janes Siqueira

    2011-07-01

    Full Text Available O trabalho que apresentamos é parte da pesquisa com os estudantes das licenciaturas e da pedagogia da Universidade de Santa Cruz do Sul-UNISC-RS-Brasil. Este está inserido na linha de pesquisa: educação, trabalho e emancipação. Queremos compreender, à luz do materialismo histórico e dialético e das categorias da crítica da economia política, os significados atribuídos pelos estudantes universitários ao fenômeno trabalho e estudo. É uma pesquisa preferentemente qualitativa de natureza dialética. Para Marx, a essência da realidade humana reside no trabalho, mas a fonte de toda a riqueza está na natureza. Logo, trabalho, natureza e sociedade estão em relação dialética. Trabalho, portanto, é a ideia central articuladora, e natureza e sociedade devem ser estudadas em conexão com o trabalho. Marx trata o trabalho, no modo de produção capitalista, como impedimento ao desenvolvimento humano. Propõe o mesmo como um ato de criação e auto-expressão humana que não deve ter um valor. A compreensão dessa premissa é necessária para que os trabalhadores possam significar e ressignificar o trabalho para além da ideologia dominante. Algumas categorias aparecem como relevantes para a análise: condições de trabalho e de estudo, necessidade de formação, predominância do trabalho sobre o estudo, dificuldade de conciliar tempo de estudo e de trabalho. Na relação com o objeto de estudo, ressaltaremos a crise estrutural do capital, a desregulamentação das leis do trabalho e sua flexibilização e as contradições entre trabalho e estudo bem como quais possibilidades emancipatórias são visualizadas ou sonhadas pelos trabalhadores-estudantes. PALAVRAS-CHAVE: contradições entre trabalho e educação, condições e significados, realidade e possibilidades.

  10. Canadian pipeline transportation system : transportation assessment

    International Nuclear Information System (INIS)

    2009-07-01

    In addition to regulating the construction and operation of 70,000 km of oil and natural gas pipelines in Canada, the National Energy Board (NEB) regulates the trade of natural gas, oil and natural gas liquids. This report provided an assessment of the Canadian hydrocarbon transportation system in relation to its ability to provide a robust energy infrastructure. Data was collected from NEB-regulated pipeline companies and a range of publicly available sources to determine if adequate pipeline capacity is in place to transport products to consumers. The NEB also used throughput and capacity information received from pipeline operators as well as members of the investment community. The study examined price differentials compared with firm service tolls for transportation paths, as well as capacity utilization on pipelines and the degree of apportionment on major oil pipelines. This review indicated that in general, the Canadian pipeline transportation system continues to work effectively, with adequate pipeline capacity in place to move products to consumers who need them. 9 tabs., 30 figs., 3 appendices.

  11. Análisis del comportamiento de los viajeros del transporte interurbano en la isla de Gran Canaria

    OpenAIRE

    Cristóbal Betancor, Teresa

    2014-01-01

    Máster Universitario en Sistemas Inteligentes y Aplicaciones Numéricas en Ingeniería (SIANI) [ES] En este trabajo se hace uso de técnicas de Inteligencia de Negocio y Minería de Datos para la extracción de conocimiento útil para la empresa concesionaria del servicio de transporte interurbano de la isla de Gran Canaria. El objetivo ha sido encontrar un patrón que permita predecir la cantidad de viajeros que querrán ir de un punto a otro de red de transporte en un momento dado. Para ello se ...

  12. Passenger transport research

    CSIR Research Space (South Africa)

    Mokonyama, Mathetha T

    2008-03-01

    Full Text Available In South Africa, airport and airline services epitomise what many would like to see in everyday public transport. The CSIR investigates what it will take to provide a commercial public transport service in South Africa which resembles commercial air...

  13. Bronchial mucus transport

    NARCIS (Netherlands)

    van der Schans, Cees P.

    Effective clearance of inhaled particles requires mucus production and continuous mucus transport from the lower airways to the oropharynx. Mucus production takes place mainly in the peripheral airways. Mucus transport is achieved by the action of the ciliated cells that cover the inner surface of

  14. Biofuels for sustainable transportation

    Energy Technology Data Exchange (ETDEWEB)

    Neufeld, S.

    2000-05-23

    Biomass is an attractive energy source, and transportation fuels made from biomass offer a number of benefits. Developing the technology to produce and use biofuels will create transportation fuel options that can positively impact the national energy security, the economy, and the environment. Biofuels include ethanol, methanol, biodiesel, biocrude, and methane.

  15. Emissions of road transport

    International Nuclear Information System (INIS)

    Maekelae, K.; Tuominen, A.

    2001-01-01

    Information on the emissions and energy consumption of different vehicles per transported amount of goods has up to last years been minimal. The unit emissions mean the amount of harmful compounds in the flue gases of a vehicle per service, time or energy unit. National three-year MOBILE 2-research program, started in 1999, determines the unit emissions of all the traffic sectors in Finland. VTT Building and Transport mainly carry out the research, but the Institute of Transportation Engineering of the Tampere University of Technology (TTKK) is responsible for a part of the research. The objective of the project is to create common rules for the determination of unit emissions values, and to determine the best possible values for Finnish conditions. Unit emission data is mainly needed for evaluation of the environmental impacts of production plants and other activities containing transportation of commodities. At the web sites of VTT Building and Transport there are about 60 pages of text and tables (about 4000 values) on unit emissions. The URL of the pages is http://www.vtt.fi/rte/projects/lipastoe/index.htm. These web pages present data on all the transportation sectors (road, railroad, water and air transportation), most of the materials concerning road transportation. Following compounds and values are included: CO, HC, NO x , particulates, SO 2 , CO 2 and energy consumption. Methane and nitrous oxide emissions values have also been presented

  16. Trajectory structures and transport

    International Nuclear Information System (INIS)

    Vlad, Madalina; Spineanu, Florin

    2004-01-01

    The special problem of transport in two-dimensional divergence-free stochastic velocity fields is studied by developing a statistical approach, the nested subensemble method. The nonlinear process of trapping determined by such fields generates trajectory structures whose statistical characteristics are determined. These structures strongly influence the transport

  17. Porters and neurotransmitter transporters

    NARCIS (Netherlands)

    Nelson, Nathan; Lill, H

    1994-01-01

    Uptake of neurotransmitters involves multiple transporters acting in different brain locations under different physiological conditions. The vesicular transporters are driven by a proton-motive force generated by a V-ATPase and their substrates are taken up via proton/substrate exchange. The plasma

  18. Nuclear materials transportation

    International Nuclear Information System (INIS)

    Ushakov, B.A.

    1986-01-01

    Various methods of nuclear materials transportation at different stages of the fuel cycle (U 3 O 8 , UF 6 production enrichment, fuel element manufacturing, storage) are considered. The advantages and drawbacks of railway, automobile, maritime and air transport are analyzed. Some types of containers are characterized

  19. Human peptide transporters

    DEFF Research Database (Denmark)

    Nielsen, Carsten Uhd; Brodin, Birger; Jørgensen, Flemming Steen

    2002-01-01

    Peptide transporters are epithelial solute carriers. Their functional role has been characterised in the small intestine and proximal tubules, where they are involved in absorption of dietary peptides and peptide reabsorption, respectively. Currently, two peptide transporters, PepT1 and PepT2, wh...

  20. Transport of plutonium nitrate

    International Nuclear Information System (INIS)

    1982-02-01

    This leaflet discusses the subject under the headings: why do we need plutonium; why must we transport it; what action is carried out; how is it moved; what are the risks. The transport of the material in specially designed containers, from Dounreay in Caithness by road and sea to Sellafield in Cumbria, is described. (U.K.)

  1. Electronic transport properties

    International Nuclear Information System (INIS)

    Young, W.H.

    1985-01-01

    The theory of the electron transport properties of liquid alkali metals is described. Conductivity coefficients, Boltzmann theory, Ziman theory, alkali form factors, Ziman theory and alkalis, Faber-Ziman alloy theory, Faber-Ziman theory and alkali-alkali methods, status of Ziman theory, and other transport properties, are all discussed. (UK)

  2. Transport and Sustainability

    DEFF Research Database (Denmark)

    Jørgensen, Kaj

    1997-01-01

    Ph.D. study of the scope for sustainable transport in Denmark, and particularly of the role of the motor vehicle in this context. The distribution of groceries is used as case study of the introduction of the motor vehicle in Denmark, concluding that this has resulted in increases of the transport...

  3. Macropores and macropore transport

    DEFF Research Database (Denmark)

    Iversen, Bo Vangsø; Lamandé, Mathieu; Torp, Søren Bent

    2012-01-01

    Preferential transport of water through soil macropores is a governing process in the facilitated transport of strongly sorbing compounds. The aim of this study was to investigate the relationships between macropore density and the hydraulic conductivity of the soil and to test the sampling...

  4. Transport in the Nordic countries

    International Nuclear Information System (INIS)

    Gustafsson, B.; Pettersson, S.; Vilkamo, S.

    1989-01-01

    Transport of radioactive material from different fields of operation is well advanced in the Nordic countries: waste from the medical sector, industry, research, and now in increasing amounts from reactor operation, including spent fuel. In the future, waste from decommissioning will also be transported. This report gives the amount of radioactive waste material to be transported in the Nordic countries. Transport routes, transport containers, and transport systems are described. Legislations and transport regulatins are discussed. (author)

  5. Economizing energies in urban public transportation; Como economizar energias en el transporte publico urbano

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez Arellano, Ignacio [Universidad Autonoma del Estado de Mexico, Toluca (Mexico)

    1998-12-31

    In the transportation sector one of the questions that we should keep on asking on the subject of energy saving is: What objective should be set for reducing the energy consumption (particularly in oil derivatives). Must it be a moderate or a strong measure? In the past years this question was very much related to the oil availability that is a non-renewable resource, nevertheless, with the elapsing of time it can be said that the available oil resources are still very large, the problem is now in function of the energy prices in the mid term and this is what will take us to establish a type of policy for the reduction of the use of fuels in transportation. The purpose of this paper, is to have the support of the transportation users informing and persuading them on the need of reducing the fuel consumption rationalizing its utilization, to ensure in our cities a relatively fluid circulation, a breathable air, a better landscape and a protection to the urban sites. Although these proposals belong in a direct way to our governments, the base of their definition will be the perspectives for the country`s development, the amount of oil reserves, the international situation and the technological advances. [Espanol] En el sector de los transportes una de las preguntas que nos deberiamos seguir haciendo, sobre el tema de ahorro de energia es que objetivo debera fijarse para reducir los consumos de energia (en particular de los derivados del petroleo) debe ser una medida fuerte o moderada. En anos pasados esta pregunta estaba muy relacionada con la disponibilidad del petroleo que es un recurso no renovable, sin embargo con el transcurso del tiempo se puede decir que los recursos disponibles de petroleo son aun muy grandes, el problema ahora esta en funcion de los precios de la energia en el mediano plazo, y es esto lo que nos llevara a fijar un tipo de politica para la reduccion de combustibles en los transportes. El proposito de este trabajo es contar con el apoyo de los

  6. Economizing energies in urban public transportation; Como economizar energias en el transporte publico urbano

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez Arellano, Ignacio [Universidad Autonoma del Estado de Mexico, Toluca (Mexico)

    1999-12-31

    In the transportation sector one of the questions that we should keep on asking on the subject of energy saving is: What objective should be set for reducing the energy consumption (particularly in oil derivatives). Must it be a moderate or a strong measure? In the past years this question was very much related to the oil availability that is a non-renewable resource, nevertheless, with the elapsing of time it can be said that the available oil resources are still very large, the problem is now in function of the energy prices in the mid term and this is what will take us to establish a type of policy for the reduction of the use of fuels in transportation. The purpose of this paper, is to have the support of the transportation users informing and persuading them on the need of reducing the fuel consumption rationalizing its utilization, to ensure in our cities a relatively fluid circulation, a breathable air, a better landscape and a protection to the urban sites. Although these proposals belong in a direct way to our governments, the base of their definition will be the perspectives for the country`s development, the amount of oil reserves, the international situation and the technological advances. [Espanol] En el sector de los transportes una de las preguntas que nos deberiamos seguir haciendo, sobre el tema de ahorro de energia es que objetivo debera fijarse para reducir los consumos de energia (en particular de los derivados del petroleo) debe ser una medida fuerte o moderada. En anos pasados esta pregunta estaba muy relacionada con la disponibilidad del petroleo que es un recurso no renovable, sin embargo con el transcurso del tiempo se puede decir que los recursos disponibles de petroleo son aun muy grandes, el problema ahora esta en funcion de los precios de la energia en el mediano plazo, y es esto lo que nos llevara a fijar un tipo de politica para la reduccion de combustibles en los transportes. El proposito de este trabajo es contar con el apoyo de los

  7. SIMULACION COMPUTACIONAL DE PROCESOS DE CONGELACION Y DESHIDRATACION PARA ALIMENTOS SOLIDOS POROSOS Y LIQUIDOS NO NEWTONIANOS

    OpenAIRE

    LEMUS MONDACA, ROBERTO ALEJANDRO

    2012-01-01

    Esta Tesis Doctoral corresponde a parte de las actividades de los Proyectos FONDECYT 1070186 y 1111067, donde se utiliza la modelación matemática y la simulación computacional para describir los fenómenos de transporte de fluidos, calor y masa que ocurren en los procesos de congelación y deshidratación de alimentos sólidos porosos y líquidos no Newtonianos. En paralelo se estudian diferentes características de gran complejidad para cada proceso térmico, como son: uso de modelos conjugados ...

  8. Estudio de capacidad vial en intersecciones a nivel para la ciudad de Ibagué

    Directory of Open Access Journals (Sweden)

    William Castro García

    2000-07-01

    Full Text Available Este proyecto fue realizado por el Programa de Investigación en Transito y Transporte (PIT de la Facultad de Ingeniería de la Universidad Nacional de Colombia para el Municipio de Ibagué y Planeación Nacional con recursos del Programa de las Naciones Unidas para el Desarrollo. Este artículo contiene los resultados de las tres etapas del estudio: (1 Diseño y toma de información, (2 Procesamiento y depuración de la información recopilada y (3 Análisis de la información procesada y depurada.

  9. Herramienta evolutiva para la planificación del mantenimiento de locaciones petroleras

    OpenAIRE

    Maria Azul Cossio; Norma Andrea Villagra

    2014-01-01

    El propósito de este documento es la presentación de una herramienta (PAE, Planificación basada en un Algoritmo Evolutivo) que utiliza un algoritmo evolutivo generador de múltiples soluciones para la planificación dinámica del mantenimiento preventivo de locaciones petroleras. La explotación y el transporte de petróleo son actividades muy importantes para el desarrollo económico de la sociedad industrial moderna. Sin embargo, estas actividades son generadoras de riesgos que se traducen en con...

  10. Recursos forestales para la vivienda

    Directory of Open Access Journals (Sweden)

    Olga Elgueta A.

    1984-06-01

    Full Text Available En una visita a la Universidad del Bío-Bío, realizada por el arquitecto peruano Cristián Arbaiza, dio a conocer detalladamente cuáles fueron los propósitos que tuvo el Pacto Andino -del cual es funcionario- para ocuparse de la forestación tropical y su relación con la vivienda, aspectos considerados fundamentales en el estudio de soluciones que permitan paliar el grave déficit habitacional que afecta a los países que componen el grupo subregional andino.

  11. Condiciones para el aprendizaje organizacional

    OpenAIRE

    Delio Ignacio Castañeda

    2015-01-01

    El propósito de esta investigación es contribuir al entendimiento de algunas condiciones que favorecen el aprendizaje en las organizaciones, específicamente el rol de la cultura del aprendizaje, la formación, la claridad estratégica y el soporte organizacional. Se emplea una metodología cuantitativa con 613 participantes, empleados de una organización pública y 2 compa˜nías privadas, las 3 entidades ubicadas en Bogotá, Colombia. Para la realización del estudio se conformó una muestra por conv...

  12. Entre velos: Maya para contrabajo

    OpenAIRE

    Rosa María Rodríguez Hernández

    2014-01-01

    Maya para contrabajo se materializa a partir de una imagen de Pepe Romero, cuyo texto interpreta a La decadencia de la mentira de Oscar Wilde. La estructura de Maya es binaria, especular y asimétrica; su poética obedece al juego verdad/mentira que subyace en la obra artística y en la vivencia del artista. Maya trae a la memoria las voces de los Upanishad, Schopenhauer, Shakespeare y Beethoven, influencias éstas en la obra de Wagner y, todas ellas, en la de Eliot. Los aspectos gestuales y visu...

  13. Planning Public Transport

    DEFF Research Database (Denmark)

    Andersen, Jonas Lohmann Elkjær; Landex, Alex

    2009-01-01

    This good practice guide is composed for the master course 13120 Public Transport Planning held at the Department of Transport, Technical University of Denmark. It is intended to use as guide in the different planning aspects and assignments of the course. Since the course is about the planning...... of new public transport infrastructure this guide also focuses on the planning of new infrastructure. Furthermore, the new infrastructure in the course is expected to be a light rail and even though this guide aims at being general for public transport some of the issues evidently become more relevant...... will enable a capability for planning both bus and rail. The guide is build as a full sketch investigation of a new public transport project ranging chronological from project clarification to physical and timetable planning to traffic modeling and project appraisal. The same steps that are expected...

  14. Porters and neurotransmitter transporters.

    Science.gov (United States)

    Nelson, N; Lill, H

    1994-11-01

    Uptake of neurotransmitters involves multiple transporters acting in different brain locations under different physiological conditions. The vesicular transporters are driven by a proton-motive force generated by a V-ATPase and their substrates are taken up via proton/substrate exchange. The plasma membrane transporters are driven by an electrochemical gradient of sodium generated by a Na+/K(+)-ATPase. Two distinct families of transporters were identified in this group. One cotransports sodium with glutamate and other amino acids and requires additionally an outwardly directed potassium gradient. The second cotransports sodium, chloride and a variety of neurotransmitters, including gamma-aminobutyric acid (GABA), glycine and monoamines. Genes and cDNA encoding several members of the latter family have been cloned and studied in detail. The structure and function as well as the evolutionary relationships among these neurotransmitter transporters are discussed.

  15. Fuel transporting device

    International Nuclear Information System (INIS)

    Shiratori, Hirozo.

    1979-01-01

    Purpose: In a liquid-metal cooled reactor, to reduce the waiting time of fuel handling apparatuses and shorten the fuel exchange time. Constitution: A fuel transporting machine is arranged between a reactor vessel and an out-pile storage tank, thereby dividing the transportation line of the pot for contracting fuel and transporting the same. By assuming such a construction, the flow of fuel transportation which has heretofore been carried out through fuel transportation pipes is not limited to one direction but the take-out of fuels from the reactor and the take-in thereof from the storage tank can be carried out constantly, and much time is not required for fuel exchange. (Kamimura, M.)

  16. Fuelling tomorrow's transport

    International Nuclear Information System (INIS)

    Cadwallader, S.; Donovan, N.

    1995-11-01

    Fuelling Tomorrow's Transport provides a thorough analysis of key industry trends; developments in technology, fuel use and efficiency; environmental and legislative constraints; and company and governmental policy. It discusses in detail the changes facing the transport industry and analyses how the various technological, political and economic developments will affect the industry into the next century. Key issues addressed include: current and future fuel use in road, marine and aviation transport; growth in the transport sector and the impact on the oil market; likely scenarios for future transport fuelling; the latest developments in alternative fuels and engines, including electricity, natural gas, nuclear power and liquid hydrogen, and the commercial feasibility of these technologies; government policy and current and proposed legislative and fiscal incentives for the development and take-up of alternative fuels and engines; the driving force of the environmental debate; the current research and development programmes of individual companies; and the commercial openings offered by these developments. (author)

  17. Transport, environment and sustainability

    DEFF Research Database (Denmark)

    Joumard, Robert; Gudmundsson, Henrik; Kehagia, Fotini

    2010-01-01

    This report is the final report of the action COST 356 'EST - Towards the definition of a measurable environmentally sustainable transport'. It tries to answer the following questions: How can environmental impacts of transport be measured? How can measurements be transformed into operational...... indicators? How can several indicators be jointly considered? And how can indicators be used in planning and decision making? Firstly we provide definition of 'indicator of environmental sustainability in transport'. The functions, strengths and weaknesses of indicators as measurement tools, and as decision...... support tools are discussed. We define what "environmental sustainability in transport" may mean through the transport system, the concepts of sustainable development and of environment. The concept of 'chain of causality' between a source and a final target is developed, as a common reference...

  18. Modelos para el control de inventarios en las pymes

    Directory of Open Access Journals (Sweden)

    Carlos Andrés Osorio

    2013-06-01

    Full Text Available El propósito fundamental de una cadena de abastecimiento consiste en maximizar el valor de la organización, al tiempo que se satisfacen los requerimientos del cliente. En el cumplimiento de este objetivo deben participar de manera coordinada e integrada todos los actores involucrados en la cadena. Recientemente, las empresas han comprendido que la aplicación de buenas prácticas es sinónimo de integración, la cual empieza por la coordinación operativa de áreas tales como compras, transporte e inventarios, entre otras. La gestión de inventarios es relevante en este proceso de unificación, ya que refleja tanto la inversión realizada por los dueños de la empresa, como la capacidad de generar buenos niveles de servicio al cliente. Sin embargo, la administración de inventarios puede llegar a ser una actividad muy compleja por la incertidumbre que la rodea y la naturaleza misma de los productos que se gestionan. Esa complejidad puede manejarse por medio de los modelos de inventarios integrados en sistemas de información transaccionales, llamados “sistemas de soporte para la toma de decisiones” (SSD. Este documento revisa los modelos teóricos para el control de inventarios que se pueden ajustar a las necesidades reales de la pyme colombiana, así como los elementos por considerar para alcanzar la integración de estos modelos y conformar un sistema para la toma de decisiones.

  19. Calidad percibida en intercambiadores de transporte en Madrid

    OpenAIRE

    Dell Asin, Giulia; Monzón de Cáceres, Andrés

    2010-01-01

    En la última década, la intermodalidad de pasajeros ha sido uno de los elementos clave en la Política Común de la Unión Europea para facilitar el cambio modal, así como disminuir la congestión y la contaminación medio-ambiental en las ciudades europeas. En este contexto, los intercambiadores de transporte, los lugares donde se produce el intercambio entre modos de transporte, juegan un papel relevante. En el presente estudio, se ha analizado la calidad percibida por los usuarios larga-corta d...

  20. Sistemas de Control en el Transporte de productos Perecederos

    OpenAIRE

    Ruiz García, Luis; Barreiro Elorza, Pilar; Ruiz-Altisent, Margarita

    2009-01-01

    Los productos alimentarios perecederos tales como hortalizas, frutas, carne o pescado requieren transporte refrigerado. El control de la calidad y supervisión de los productos durante su transporte y distribución es de gran importancia, siendo el mayor reto asegurar una cadena de frio continua desde el productor hasta el consumidor. Entre las diferentes tecnologías que se pueden utilizar para monitorizar, destacan las tecnologías de sensórica inalámbrica que pueden ser de dos tipos: RFID...

  1. Logistic innovations in transport

    Directory of Open Access Journals (Sweden)

    Mirosław Antonowicz

    2014-03-01

    Full Text Available Introduction: The article discusses the issue of logistic innovations in transport. The essentials of logistic innovations in transport together with some examples of specific innovations are presented. The role of the client's needs in transport innovations is indicated. The most vital postulates affecting the innovativeness of shipping companies and derived from the author's experience as well as scholarly publications, are time, safety, reliability as well as comprehensiveness of service offer. Following the analysis of the issue, and on the grounds of Kaizen's and Lean's method, the concept of continuous innovations is suggested as very useful for the development of transport. The potential of clusters as the source of logistic innovations in transport is emphasised. Methods: The discussion of the issue was preceded by the author's analysis of written sources on innovativeness, the evaluation of ratings of innovativeness as well as the analysis of rewarded innovative solutions in transport subsequent to the businesses participation in the programme of innovative solutions in transport. The role of innovation practical business operations is argued following the analysis of some strategic documents such as: 2011 White Paper and the Strategy for the Development of Transport by 2020 adopted by the Polish government in 2013. Aim: The aim of the article is to present the role and significance of the issue of logistic innovations in transport and to cite instances of practical solutions implemented by shipping companies, the solutions which resulted in measurable effects. Following the author's observation of the instances of innovative solutions as well as his analysis of the ratings of innovativeness, the article aims to present the conclusions as for the specific kinds of activities which are indispensable to foster innovativeness in transport. Conclusions: The conclusions derived from the author's analyses and observations show that logistic

  2. Pequenos para idade gestacional: fator de risco para mortalidade neonatal

    Directory of Open Access Journals (Sweden)

    Almeida Márcia Furquim de

    1998-01-01

    Full Text Available OBJETIVO: Estudar as variáveis contempladas na Declaração de Nascimento (DN como possíveis fatores de risco para nascimentos pequenos para a idade gestacional (PIG e o retardo de crescimento intra-uterino como fator de risco para a mortalidade neonatal. MATERIAL E MÉTODO: As variáveis existentes na DN foram obtidas diretamente de prontuários hospitalares. Os dados referem-se a uma coorte de nascimentos obtida por meio da vinculação das declarações de nascimento e óbito, correspondendo a 2.251 nascimentos vivos hospitalares, de mães residentes, ocorridos no Município de Santo André, Região Metropolitana de São Paulo, no período de l/1 a 30/6/1992, e aos óbitos neonatais verificados nessa coorte. RESULTADOS: Obteve-se a proporção de 4,3% de nascimentos PIG, significativamente maior entre os recém-nascidos de pré-termo e pós-termo, entre os nascimentos cujas mães tinham mais de 35 anos de idade e grau de instrução inferior ao primeiro grau completo. Os recém-nascidos PIG apresentam maior risco de morte neonatal que aqueles que não apresentavam sinais de retardo de crescimento intra-uterino. CONCLUSÕES: Em áreas com menor freqüência de baixo peso ao nascer, é importante investigar a presença de retardo de crescimento intra-uterino entre os nascimentos prematuros e não apenas nos nascimentos de termo. O registro da data da última menstruação (ou da idade gestacional em semanas não agregadas na DN facilitaria a detecção de PIGs na população de recém-nascidos.

  3. Para onde vai a Geografia?

    Directory of Open Access Journals (Sweden)

    Angélica Karina Dillenburg Horii

    2015-12-01

    Full Text Available O presente artigo aborda a evolução da Geografia enquanto pensamento científico, analisando seu objeto de estudo e suas categorias de análise durante todo o percurso da criação desse saber. Observa primeiramente a formação da Geografia Clássica, que teve seus princípios já instituídos na Antiguidade com Ptolomeu e Estrabão, desdobrando-se no período Iluminista com Ritter e Humboldt que fornecerão uma nova temporalidade a essa ciência. Atinge seu ápice na Modernidade Industrial com a racionalidade de Kant, onde Ratzel e La Blache utilizarão o determinismo e o possibilismo para constituir um discurso científico para a Geografia. Finaliza apontando a nova compreensão do mundo, conhecida como pós-modernismo por David Harvey (1992 ou por Milton Santos (1996 como Globalização, que junto a outros geógrafos e pesquisadores, indicam caminhos de análise dessa ciência na compreensão do seu objeto de estudo. Um diálogo entre os autores na construção do pensamento geográfico.

  4. Bioclimatic transport stop: Urban equipment kit; Parada bioclimatica de transporte: Kit de equipamiento urbano

    Energy Technology Data Exchange (ETDEWEB)

    Machado, Maria V; Barroso, Helen; Bonvino, Michelangelo; Puerta, Marigabriela [Instituto de Investigaciones de la Facultad de Arquitectura de la Universidad del Zulia, Maracaibo (Venezuela)

    2000-07-01

    urbano se identifican variables de caracter cuantitativas y cualitativas: encontrandose en esta ultima lo referente al diseno y equipamiento de las paradas, esto es, con que elementos deben contar las paradas para su insercion al sistema de transporte publico: informacion al usuario, banca (asiento), papelera, entre otros: omitiendose por lo general aspectos relevantes que deben ser considerados en el diseno e insercion: 1) estructurante de la red de transporte publico urbano, 2) las variables climaticas y 3) usos de energia renovables y conservacion del ambiente. En esta ponencia se realizo una evaluacion termica, utilizando para ello software de analisis termico, de los prototipos de paradas para el transporte publico urbano existente en Maracaibo (1.6 Mhab.)-Venezuela, ciudad caracterizada por una alta insolacion, una duracion aproximadamente igual entre el periodo diurno y nocturno y por un clima maritimo de temperatura (27.70 grados celsius) y humedad relativo (75%) elevadas, poca precipitacion (490 mm) y viento predominante nor-noreste. Los valores anuales promedios de radiacion solar corresponden a 5,59 kw/m{sup 2} dia para la radiacion global, 3.53 kw/m{sup 2} dia para la radiacion directa (63.1) y 2.06 kw/m{sup 2} dia para la radiacion difusa (36. 9%). El maximo valor promedio se obtuvo en el mes de marzo con 6.4 kw/m{sup 2} dia y el minimo en octubre, 4.7 kw/m{sup 2} dia. Por otra parte se realizaron calculos sobre el consumo energetico y emisiones de CO{sub 2} de las paradas convencionales. Se propone un diseno de paradas conceptualizadas como el condensador bioclimatico del equipamiento urbano, donde ademas de cumplir con sus funciones claramente determinadas para el transporte, puedan conjugarse: 1) actividades complementarias con el transporte publico urbano de Maracaibo; 2) orientacion; 3) regulador del microclima urbano; y 4) area de insercion de las mismas.

  5. Transportation Consumer Education Curriculum Guide.

    Science.gov (United States)

    Finn, Peter; And Others

    Materials in this curriculum guide represent a selection of the major transportation consumer topics and ideas and are designed to set the stage for more intensive transportation consumer education curriculum development and teacher efforts. (Eleven manuals covering the four transportation topics of public transportation, transportation and the…

  6. LA VIDEOCONFERENCIA DE ESCRITORIO COMO APOYO PARA LA EDUCACIÓN DE PERSONAS CON DIVERSIDAD FUNCIONAL

    Directory of Open Access Journals (Sweden)

    Ana Aurora Vidal Martínez

    2015-01-01

    Full Text Available En el presente ensayo se describe el contexto en el que se ha dado el desarrollo educativo de las personas con diversidad funcional para caminar en México y el apoyo que reciben de organismos internacionales y del Gobierno Mexicano, ya que el mismo se ve truncado por diversas causas, siendo una de ellas, la dificultad para asistir a una institución educativa, principalmente por la deficiente infraestructura urbana y de transporte. Este trabajo se fundamenta en investigaciones realizadas por varias instituciones como: El Instituto Nacional de Estadística y Geografía (INEGI, Organización de las Naciones Unidas para la Educación la Ciencia y la Cultura (UNESCO, Observatorio Regional de la Sociedad de la Información, Consejo Nacional para el Desarrollo y la Inclusión de las Personas con Discapacidad (CONADIS, entre otras. Complementa este ensayo los resultados positivos de experiencias utilizando los desarrollos tecnológicos actuales, que hacen posible presentar una propuesta basada en videoconferencia de escritorio, la cual es económica, de fácil y rápida implementación y que puede utilizarse para atender la educación de las perso nas con diversidad funcional para caminar en búsqueda de su integración educativa.

  7. Children and transportation

    Energy Technology Data Exchange (ETDEWEB)

    Anon

    2003-12-09

    This issue of the 'Sustainable Transportation Monitor', published by the Centre for Sustainable Transportation located in Mississauga, Ontario, reports on key findings from a project involving children and transportation in the Halton and Peel regions of Ontario, recently completed by the Centre. Excerpts from the report summarized in this issue include data on children's travel in Halton and Peel, and a discussion on possible contribution of transport practices to the growing incidence of obesity among Canadian children. Results of the study indicate that until about age 18, travel by children on schooldays is dominated by the journey to and from school. School bus is the choice of 28 per cent, and passenger car by 23 per cent among 11-to-14- year-olds; the share of travel by car is larger for older young people and also likely larger among 6-to-10-year-olds. Physical inactivity has been highlighted as the contributing factor to excess body weight and obesity in this, and other studies. Data collected for this study corroborates the findings of other studies by showing a positive correlation between obesity and transport energy use in 18 affluent countries, suggesting that a high level of use of motorized transport contributes to inactivity and body weight gain. Several alternate means of transportation, with the potential to combat obesity, are proposed. 46 refs.

  8. Infraestructura para laboratorios de acceso remoto

    Directory of Open Access Journals (Sweden)

    López Luro, Francisco

    2009-01-01

    Full Text Available Las tecnologías de Internet permiten el uso de sistemas de software distribuido para el acceso en forma remota a laboratorios físicos y virtuales, para llevar a cabo actividades de investigación experimental a distancia. A partir de los marcos teóricos que definen los estructurantes de los laboratorios, los implementadores de laboratorios de acceso remoto deben diseñar y desarrollar arquitecturas de servicios que permitan un acceso flexible y controlado. Este trabajo define una infraestructura para la implementación de aplicaciones para el acceso remoto a laboratorios físicos y virtuales y para la gestión de los mismos. Se presentan conceptos que permiten extender la modalidad tradicional de conexión con un dispositivo, para llevar adelante actividades prácticas de laboratorio colaborativas y concurrentes.

  9. Internet como instrumento para la Yihad

    Directory of Open Access Journals (Sweden)

    Alfonso Merlos García

    2006-01-01

    Full Text Available Las extraordinarias ventajas que ofrece Internet lo han convertido en un instrumento clave y dinámico en la estrategia de los yihadistas. Los medios de comunicación, la clase política y las agencias de seguridad e información han tendido a concentrar sus esfuerzos en la neutralización del ciberterrorismo sin prestar suficiente atención a los múltiples usos de Internet que están haciendo los neosalafistas: para la propaganda y para la guerra psicológica, para el reclutamiento y para la financiación, para la documentación y para la planificación de atentados. Las democracias deberían considerar el coste que tendrá la derrota frente al movimiento yihadista globalizado en la batalla por el ciberespacio

  10. Canadian hydrocarbon transportation system : transportation assessment

    International Nuclear Information System (INIS)

    2006-06-01

    This document provided an assessment of the Canadian hydrocarbon transportation system. In addition to regulating the construction and operation of Canada's 45,000 km of pipeline that cross international and provincial borders, Canada's National Energy Board (NEB) regulates the trade of natural gas, oil and natural gas liquids. The ability of pipelines to delivery this energy is critical to the country's economic prosperity. The pipeline system includes large-diameter, cross-country, high-pressure natural gas pipelines, low-pressure crude oil and oil products pipelines and small-diameter pipelines. In order to assess the hydrocarbon transportation system, staff at the NEB collected data from pipeline companies and a range of publicly available sources. The Board also held discussions with members of the investment community regarding capital markets and emerging issues. The assessment focused largely on evaluating whether Canadians benefit from an efficient energy infrastructure and markets. The safety and environmental integrity of the pipeline system was also evaluated. The current adequacy of pipeline capacity was assessed based on price differentials compared with firm service tolls for major transportation paths; capacity utilization on pipelines; and, the degree of apportionment on major oil pipelines. The NEB concluded that the Canadian hydrocarbon transportation system is working effectively, with an adequate capacity in place on existing natural gas pipelines, but with a tight capacity on oil pipelines. It was noted that shippers continue to indicate that they are reasonably satisfied with the services provided by pipeline companies and that the NEB-regulated pipeline companies are financially stable. 14 refs, 11 tabs., 28 figs., 4 appendices

  11. Transports and environment; Transports et environnements

    Energy Technology Data Exchange (ETDEWEB)

    Anon,

    2004-07-01

    In the framework of the greenhouse gases reduction, this study proposes many advices to control the fuel consumption of the vehicles and to change habits in the transportation sector. It presents also the alternatives to the pollutant today vehicles in the domain of the vehicles and buses fuels but also the new motors. Many Internet addresses are provided to complete the presentation. (A.L.B.)

  12. Inteligencia Emocional para tiempos de crisis

    OpenAIRE

    Fernández-Berrocal, Pablo

    2014-01-01

    La Inteligencia Emocional se concibe como un conjunto de habilidades, tanto básicas como complejas, dirigidas a “unificar las emociones y el razonamiento”, esto es, usar las emociones para facilitar el razonamiento y los procesos de pensamiento, y usar nuestro razonamiento para pensar de forma inteligente acerca de nuestras emociones (Mayer y Salovey, 1997). En concreto, la IE se define como una habilidad mental que incluye “la capacidad para percibir, valorar y expresar las emociones con...

  13. Transport of hazardous goods

    International Nuclear Information System (INIS)

    1989-01-01

    The course 'Transport of hazardous goods' was held in Berlin in November 1988 in cooperation with the Bundesanstalt fuer Materialforschung und -pruefung. From all lecturs, two are recorded separately: 'Safety of tank trucks - requirements on the tank, development possibiities of active and passive safety' and 'Requirements on the transport of radioactive materials - possible derivations for other hazardous goods'. The other lectures deal with hazardous goods law, requirements on packinging, risk assessment, railroad transport, hazardous goods road network, insurance matters, EC regulations, and waste tourism. (HSCH) [de

  14. TRANSPORTATION SYSTEM REQUIREMENTS DOCUMENT

    International Nuclear Information System (INIS)

    2004-01-01

    This document establishes the Transportation system requirements for the U.S. Department of Energy's (DOE's) Civilian Radioactive Waste Management System (CRWMS). These requirements are derived from the Civilian Radioactive Waste Management System Requirements Document (CRD). The Transportation System Requirements Document (TSRD) was developed in accordance with LP-3.1Q-OCRWM, Preparation, Review, and Approval of Office of National Transportation Level-2 Baseline Requirements. As illustrated in Figure 1, the TSRD forms a part of the DOE Office of Civilian Radioactive Waste Management (OCRWM) Technical Baseline

  15. Transport in stellarators

    International Nuclear Information System (INIS)

    Maassberg, H.; Brakel, R.; Burhenn, R.; Gasparino, U.; Grigull, P.; Kick, M.; Kuehner, G.; Ringler, H.; Sardei, F.; Stroth, U.; Weller, A.

    1993-01-01

    The local electron and ion heat transport as well as the particle and impurity transport properties in stellarators are reviewed. In this context, neoclassical theory is used as a guideline for the comparison of the experimental results of the quite different confinement concepts. At sufficiently high temperatures depending on the specific magnetic configuration, neoclassical predictions are confirmed by experimental findings. The confinement properties in the LMFP collisionality regime are discussed with respect to the next stellarator generation, for which at higher temperatures the neoclassical transport is expected to become more important. (orig.)

  16. CNG transport opportunities

    International Nuclear Information System (INIS)

    Anon

    2000-01-01

    The recent announcement by the Australian Government of funding for a dramatic increase in supply infrastructure for Compressed Natural Gas (CNG) powered vehicles has shored up predictions that natural gas will achieve a thirty-fold increase in its share of the Australian transport energy market by 2015. This projection, would put sales of natural gas for transport fuel in the year 2014/15 at about 10% of current retail sales across the nation. In the general transport sector, the lower particulate and noise pollution, compared with diesel-powered vehicles, is a significant advantage

  17. Means of Transport

    DEFF Research Database (Denmark)

    Balle, Søren Hattesen

    The car is probably one of the most central signifiers of modern scientific and technological progress. Not only did its introduction in early 20th century America quite literally move scientific progress into the street, it also provided its increasing number of users with new and technologically....... According to film theorist Julian Smith, the automobile has been just as much “embraced … as a form of emotional transport, the state or condition of being transported by ecstasy” as “perceived as a mode of transportation in the primary and ordinary sense of the word.” This paper analyses the ways in which...

  18. Transport Coefficients of Fluids

    CERN Document Server

    Eu, Byung Chan

    2006-01-01

    Until recently the formal statistical mechanical approach offered no practicable method for computing the transport coefficients of liquids, and so most practitioners had to resort to empirical fitting formulas. This has now changed, as demonstrated in this innovative monograph. The author presents and applies new methods based on statistical mechanics for calculating the transport coefficients of simple and complex liquids over wide ranges of density and temperature. These molecular theories enable the transport coefficients to be calculated in terms of equilibrium thermodynamic properties, and the results are shown to account satisfactorily for experimental observations, including even the non-Newtonian behavior of fluids far from equilibrium.

  19. Análisis de la calidad del servicio en el transporte público mediante redes neuronales artificiales

    OpenAIRE

    Garrido Rodriguez, Maria; DE OÑA LOPEZ, JUAN JOSE

    2016-01-01

    [ES] El éxito de un servicio de transporte público reside en su capacidad para captar nuevos pasajeros y de fidelizar el uso de los actuales. De ahí que las administraciones y los gestores de transporte se preocupen cada vez más por conocer cuál es la calidad percibida por los usuarios. Aunque existen numerosos métodos matemáticos que ya han sido utilizados para analizar la calidad del servicio en el transporte público, es necesario seguir avanzando en el estudio de nuevas técn...

  20. EBS Radionuclide Transport Abstraction

    Energy Technology Data Exchange (ETDEWEB)

    J.D. Schreiber

    2005-08-25

    The purpose of this report is to develop and analyze the engineered barrier system (EBS) radionuclide transport abstraction model, consistent with Level I and Level II model validation, as identified in ''Technical Work Plan for: Near-Field Environment and Transport: Engineered Barrier System: Radionuclide Transport Abstraction Model Report Integration'' (BSC 2005 [DIRS 173617]). The EBS radionuclide transport abstraction (or EBS RT Abstraction) is the conceptual model used in the total system performance assessment for the license application (TSPA-LA) to determine the rate of radionuclide releases from the EBS to the unsaturated zone (UZ). The EBS RT Abstraction conceptual model consists of two main components: a flow model and a transport model. Both models are developed mathematically from first principles in order to show explicitly what assumptions, simplifications, and approximations are incorporated into the models used in the TSPA-LA. The flow model defines the pathways for water flow in the EBS and specifies how the flow rate is computed in each pathway. Input to this model includes the seepage flux into a drift. The seepage flux is potentially split by the drip shield, with some (or all) of the flux being diverted by the drip shield and some passing through breaches in the drip shield that might result from corrosion or seismic damage. The flux through drip shield breaches is potentially split by the waste package, with some (or all) of the flux being diverted by the waste package and some passing through waste package breaches that might result from corrosion or seismic damage. Neither the drip shield nor the waste package survives an igneous intrusion, so the flux splitting submodel is not used in the igneous scenario class. The flow model is validated in an independent model validation technical review. The drip shield and waste package flux splitting algorithms are developed and validated using experimental data. The transport

  1. EBS Radionuclide Transport Abstraction

    International Nuclear Information System (INIS)

    J.D. Schreiber

    2005-01-01

    The purpose of this report is to develop and analyze the engineered barrier system (EBS) radionuclide transport abstraction model, consistent with Level I and Level II model validation, as identified in ''Technical Work Plan for: Near-Field Environment and Transport: Engineered Barrier System: Radionuclide Transport Abstraction Model Report Integration'' (BSC 2005 [DIRS 173617]). The EBS radionuclide transport abstraction (or EBS RT Abstraction) is the conceptual model used in the total system performance assessment for the license application (TSPA-LA) to determine the rate of radionuclide releases from the EBS to the unsaturated zone (UZ). The EBS RT Abstraction conceptual model consists of two main components: a flow model and a transport model. Both models are developed mathematically from first principles in order to show explicitly what assumptions, simplifications, and approximations are incorporated into the models used in the TSPA-LA. The flow model defines the pathways for water flow in the EBS and specifies how the flow rate is computed in each pathway. Input to this model includes the seepage flux into a drift. The seepage flux is potentially split by the drip shield, with some (or all) of the flux being diverted by the drip shield and some passing through breaches in the drip shield that might result from corrosion or seismic damage. The flux through drip shield breaches is potentially split by the waste package, with some (or all) of the flux being diverted by the waste package and some passing through waste package breaches that might result from corrosion or seismic damage. Neither the drip shield nor the waste package survives an igneous intrusion, so the flux splitting submodel is not used in the igneous scenario class. The flow model is validated in an independent model validation technical review. The drip shield and waste package flux splitting algorithms are developed and validated using experimental data. The transport model considers

  2. Sistema de realidad aumentada para aplicaciones Android

    OpenAIRE

    Fernández Sánchez, Natalia Mercedes

    2012-01-01

    El objetivo principal de este proyecto es la creación de un sistema de realidad aumentada para el sistema operativo Android con idea de que sea utilizado para la creación de un videojuego, pero que a su vez sea lo suficientemente versátil como para poder utilizarse en otro tipo de aplicaciones. De este objetivo principal podemos obtener los objetivos secundarios: - Conocer las características que ofrecen los teléfonos móviles y como éstas pueden ser aprovechadas para la crea...

  3. Paisajes para un desarrollo sustentable y participativo

    Directory of Open Access Journals (Sweden)

    Rafael Mata Olmo

    2014-11-01

    Para terminar, el texto recoge una experiencia de proyecto territorial de paisaje, la del Plan Insular de Menorca (Islas Baleares, España, aprobado en 2003. Se sintetizan sus determinaciones sobre la protección de determinados terrenos por sus altos valores paisajísticos, sus directrices para que las políticas sectoriales (turismo, agricultura, infraestructuras, etc. incorporen criterios paisajísticos, y sus iniciativas para la gestión y mejora del paisaje y para el fomento del acceso público a su contemplación y disfrute.

  4. Guias ópticos para sensores

    OpenAIRE

    Marcos de Castro Pacitti

    1993-01-01

    Neste trabalho foram estudados guias ópticos para atuarem como sensores ou em sistemas sensores. Ênfase especial foi dada em guias ópticos retangulares, para dispositivos ópticos integrados, e fibras ópticas elípticas. A analise de fibras ópticas elípticas resultou em um modelamento pratico para projeto das mesmas em aplicações onde se deseja operar com dois modos guiados, situação esta que se mostra muito atraente para implementação de diversos tipos de sensores a fibra óptica. A seguir es...

  5. Adesao ao guia alimentar para populacao brasileira

    Directory of Open Access Journals (Sweden)

    Eliseu Verly Junior

    2013-12-01

    Full Text Available OBJETIVO : Analisar a adesão ao Guia Alimentar para População Brasileira. MÉTODOS : Amostra composta por participantes do Inquérito de Saúde de São Paulo (n = 1.661 que preencheram dois recordatórios de 24 horas. Foi utilizado modelo bivariado de efeito misto para a razão entre o consumo de energia do grupo de alimentos e o consumo calórico total. A razão estimada foi utilizada para calcular o percentual de indivíduos com consumo abaixo ou acima da recomendação. RESULTADOS : Pelo menos 80,0% da população consome abaixo do recomendado para: leite e derivados; frutas e sucos de frutas; e cereais, tubérculos e raízes; aproximadamente 60,0% para legumes e verduras; 30,0% para feijões; e 8,0% para carnes e ovos. Adolescentes apresentaram a maior inadequação para legumes e verduras (90,0%, e o estrato de maior renda foi associado à menor inadequação para óleos, gorduras e sementes oleaginosas (57,0%. CONCLUSÕES : Foi observado consumo inadequado dos grupos de alimentos relacionados com aumento do risco de doenças crônicas.

  6. Leasing: una alternativa de financiamiento para PYMES

    OpenAIRE

    Bedjan, María Belén

    2008-01-01

    En la actualidad las pequeñas y medianas empresas encuentran dificultades para acceder a las líneas tradicionales de créditos bancarios. Por otro lado las empresas necesitan actualizarse constantemente para poder ser competitivas en el mercado. Es aquí donde el leasing nace como una alternativa de financiación para las PyMEs. Este trabajo pretendió demostrar la conveniencia financiera del leasing con respecto a los préstamos bancarios para la compra de maquinarias agrícolas ...

  7. Handling and Transport Problems; Problemes de Manipulation et de Transport; 041f 0420 041e 0414 ; Problemas de Manipulacion y de Transporte

    Energy Technology Data Exchange (ETDEWEB)

    Pomarola, J.; Savouyaud, J. [Service de Controle des Radiations et de Genie Radioactif, Commissariat a l' Energie Atomique, Saclay (France)

    1960-07-01

    I. The handling and transport of radioactive waste involves the risk of irradiation and contamination. It is necessary to draw up special regulations governing the removal and transport of waste within the centres or from one centre to another, and to entrust transport to a group in charge of specialized teams. The organization, equipment and efficiency of such teams is then considered. II. Certain types of transport operation are particularly dangerous and require special transport units and fixed installations. This applies, in particular, to the disposal of highly radioactive liquids. A description is given of a composite transport unit, consisting of a towing vehicle, semi-trailer and tank holding 500 l of liquid with an activity of up to 1,000 c/l. The drawing-off of the liquid waste, routing of the transport unit and precautions to be taken are discussed. (author) [French] I - La manipulation et le j transport des dechets radioactifs presentent des dangers d'irradiation et de contamination. Il est necessaire: - d'edicter des consignes speciales applicables a l'enlevement et au transport des dechets dans les centres ou de centre a centre. - de confier les transports a un groupe dont relevent des equipes specialisees. On examine l'organisation, les moyens, le rendement de ces equipes. II - Certains transports sont particulierement dangereux et necessitent des engins speciaux et des installations fixes. C'est le cas, notamment, de l'evacuation des liquides tres actifs. On decrit : Inverted-Exclamation-Mark - un engin de transport compose d'un ensemble: tracteur, semi- remorque et d'un recipient qui contient 500 litres de liquide dont l'activite peut atteindre 1.000 c/l. - les operations de transvasement, l'acheminement de l'engin, les precautions prises. (author) [Spanish] I - La manipulacion y el transporte de desechos radiactivos ofrecen riesgos de irradiacion y de contaminacion. Es necesario: - dictar consignas especiales para retirar los desechos y para su

  8. DESIGN OF HYBRID PREDICTIVE CONTROL STRATEGIES FOR OPOTIMIZATION OF OPERATIONAL PROCESSES IN DYNAMIC TRANSPORT SYSTEMS

    OpenAIRE

    NUÑEZ VICENCIO, ALFREDO ANTONIO; NUÑEZ VICENCIO, ALFREDO ANTONIO

    2009-01-01

    El objetivo de esta tesis es el desarrollo de nuevas metodologías de diseño de estrategias de control predictivo híbrido para sistemas dinámicos no-lineales que incluyen variables discretas y continuas. La metodología se diseña para aplicaciones reales, en particular para el estudio de sistemas dinámicos de transporte, incluyendo políticas operacionales y de servicio, así como reducción de costos. La formulación del controlador se basa en una definición adecuada de las variables esencia...

  9. NJ transportation fact book, 2007

    Science.gov (United States)

    2010-01-01

    The New Jersey Transportation Fact Book 2006-07 presents information about the New Jersey Department of Transportation : and other agencies that provide transportation services in New Jersey. We hope it will prove helpful.

  10. National Transportation Atlas Databases : 2013.

    Science.gov (United States)

    2013-01-01

    The National Transportation Atlas Databases 2013 (NTAD2013) is a set of nationwide geographic datasets of transportation facilities, transportation networks, associated infrastructure, and other political and administrative entities. These datasets i...

  11. National Transportation Atlas Databases : 2015.

    Science.gov (United States)

    2015-01-01

    The National Transportation Atlas Databases 2015 (NTAD2015) is a set of nationwide geographic datasets of transportation facilities, transportation networks, associated infrastructure, and other political and administrative entities. These datasets i...

  12. National Transportation Atlas Databases : 2012.

    Science.gov (United States)

    2012-01-01

    The National Transportation Atlas Databases 2012 (NTAD2012) is a set of nationwide geographic databases of transportation facilities, transportation networks, and associated infrastructure. These datasets include spatial information for transportatio...

  13. National Transportation Atlas Databases : 2011.

    Science.gov (United States)

    2011-01-01

    The National Transportation Atlas Databases 2011 (NTAD2011) is a set of nationwide geographic databases of transportation facilities, transportation networks, and associated infrastructure. These datasets include spatial information for transportatio...

  14. National Transportation Atlas Databases : 2009.

    Science.gov (United States)

    2009-01-01

    The National Transportation Atlas Databases 2009 (NTAD2009) is a set of nationwide geographic databases of transportation facilities, transportation networks, and associated infrastructure. These datasets include spatial information for transportatio...

  15. National Transportation Atlas Databases : 2014.

    Science.gov (United States)

    2014-01-01

    The National Transportation Atlas Databases 2014 (NTAD2014) is a set of nationwide geographic datasets of transportation facilities, transportation networks, associated infrastructure, and other political and administrative entities. These datasets i...

  16. National Transportation Atlas Databases : 2010.

    Science.gov (United States)

    2010-01-01

    The National Transportation Atlas Databases 2010 (NTAD2010) is a set of nationwide geographic databases of transportation facilities, transportation networks, and associated infrastructure. These datasets include spatial information for transportatio...

  17. Development of Indian passenger transport

    Energy Technology Data Exchange (ETDEWEB)

    Ramanathan, R. [Indira Ghandi Institute of Development Research, Mumbai (India)

    1998-05-01

    The Indian transport sector has been studied using logistic substitution. The share of rail transport is declining, while road and air transport are increasing. These developments are not desirable from an energy-efficiency perspective. (author)

  18. Transportation statistics annual report 2010

    Science.gov (United States)

    2011-01-01

    The Transportation Statistics Annual Report (TSAR) presents data and information compiled by the Bureau of Transportation Statistics (BTS), a component of the U.S. Department of Transportations (USDOTs) Research and Innovative Technology Admini...

  19. Transportation statistics annual report 2009

    Science.gov (United States)

    2009-01-01

    The Transportation Statistics Annual Report (TSAR) presents data and information selected by the Bureau of Transportation Statistics (BTS), a component of the U.S. Department of Transportation's (USDOT's) Research and Innovative Technology Administra...

  20. Pocket Guide to Transportation 2012

    Science.gov (United States)

    2012-01-01

    The Bureau of Transportation Statistics (BTS) of the Research and Innovative Technology Administration produces the Pocket Guide to Transportation as a compact resource that provides snapshots of the U.S. transportation system and highlights major tr...

  1. Pocket Guide to Transportation 2018

    Science.gov (United States)

    2018-01-01

    The 2018 BTS Pocket Guide to Transportation is a quick reference guide that provides transportation statistics at your fingertips. It provides key information and highlights major trends on the U.S. transportation system. This year features a new and...

  2. Accident resistant transport container

    Science.gov (United States)

    Anderson, J.A.; Cole, K.K.

    The invention relates to a container for the safe air transport of plutonium having several intermediate wood layers and a load spreader intermediate an inner container and an outer shell for mitigation of shock during a hypothetical accident.

  3. Molecular electronic junction transport

    DEFF Research Database (Denmark)

    Solomon, Gemma C.; Herrmann, Carmen; Ratner, Mark

    2012-01-01

    Whenasinglemolecule,oracollectionofmolecules,isplacedbetween two electrodes and voltage is applied, one has a molecular transport junction. We discuss such junctions, their properties, their description, and some of their applications. The discussion is qualitative rather than quantitative, and f...

  4. Transportation energy data book

    Science.gov (United States)

    2009-01-01

    The Transportation Energy Data Book: Edition 28 is a statistical compendium prepared and : published by Oak Ridge National Laboratory (ORNL) under contract with the U.S. Department of : Energy, Office of Energy Efficiency and Renewable Energy, Vehicl...

  5. Interfacial transport phenomena

    CERN Document Server

    Slattery, John C; Oh, Eun-Suok

    2007-01-01

    Revised and updated extensively from the previous editionDiscusses transport phenomena at common lines or three-phase lines of contactProvides a comprehensive summary about the extensions of continuum mechanics to the nanoscale.

  6. Transport of radioactive materials

    International Nuclear Information System (INIS)

    1988-07-01

    The norm which establishes the requirements of radiation protection and safety related to the transport of radioactive materials, aiming to keep a suitable control level of eventual exposure of personnels, materials and environment of ionizing radiation, including: specifications on radioactive materials for transport, selection of package type; specification of requirements of the design and assays of acceptance of packages; disposal related to the transport; and liability and administrative requirements, are presented. This norm is applied to: truckage, water carriage and air service; design, fabrication, assays and mantenaince of packages; preparation, despatching, handling, loading storage in transition and reception in the ultimate storage of packages; and transport of void packages which have been contained radioactive materials. (M.C.K.) [pt

  7. Transport and the environment

    Energy Technology Data Exchange (ETDEWEB)

    Sharp, C; Jennings, T

    1976-01-01

    This book examines the impact of transport operations on the environment. Noise, air pollution, vibration, accidents, delays caused by slow-moving vehicles, road wear, visual intrusion, the severance of communities--all these social costs of transport are studied, together with policies that might reduce them. The difficulties in measuring costs and benefits and the value judgments that may guide transport policy are reviewed. Specific problems examined include the journey to work, traffic-free shopping streets, urban motor-ways, and inter-change depots for goods vehicles. The role of central and local government is considered, particular attention being given to methods of allowing for environmental benefits when planning new transport investment; the implications of EEC policy are also noted.

  8. Transportation Network Topologies

    Science.gov (United States)

    Alexandrov, Natalia (Editor)

    2004-01-01

    The existing U.S. hub-and-spoke air transportation system is reaching saturation. Major aspects of the current system, such as capacity, safety, mobility, customer satisfaction, security, communications, and ecological effects, require improvements. The changing dynamics - increased presence of general aviation, unmanned autonomous vehicles, military aircraft in civil airspace as part of homeland defense - contributes to growing complexity of airspace. The system has proven remarkably resistant to change. NASA Langley Research Center and the National Institute of Aerospace conducted a workshop on Transportation Network Topologies on 9-10 December 2003 in Williamsburg, Virginia. The workshop aimed to examine the feasibility of traditional methods for complex system analysis and design as well as potential novel alternatives in application to transportation systems, identify state-of-the-art models and methods, conduct gap analysis, and thus to lay a foundation for establishing a focused research program in complex systems applied to air transportation.

  9. Modelling Ballast Water Transport

    Digital Repository Service at National Institute of Oceanography (India)

    Jayakumar, S.; Babu, M.T.; Vethamony, P.

    Ballast water discharges in the coastal environs have caused a great concern over the recent periods as they account for transporting marine organisms from one part of the world to the other. The movement of discharged ballast water as well...

  10. Transportation Industry 2004

    National Research Council Canada - National Science Library

    Miller, Evan; Kathir, Nathan; Brogan, Dennis M

    2004-01-01

    ... and the environment in which the private sector operates. They must also assess the role of government in determining transportation policy, as federal, state, and local agencies regulate every mode of this industry. While the U.S...

  11. Transportation Security Administration

    Science.gov (United States)

    ... content Official website of the Department of Homeland Security Transportation Security Administration A - Z Index Blog What Can I ... Search form Search the Site Main menu Travel Security Screening Special Procedures TSA Pre✓® Passenger Support Travel ...

  12. Remote controlled transport device

    International Nuclear Information System (INIS)

    Nakahira, Masataka; Oka, Kiyoshi; Ito, Akira; Tada, Eisuke; Sato, Masaki

    1998-01-01

    The present invention provides a device for transporting equipments for maintenance and parts between a maintenance port and a facility for maintenance by remote control in a radioactive material handling facility such as a nuclear power plant. Namely, a power supply bus bar is disposed along a transferring path in order to supply power to a transporting means, and is divided into every region having a predetermined length. Each of the power supply bus bar regions is controlled for the power supply by a control device. Accordingly, the transporting means can be moved and driven successively being independent on every power supply bus bar region. Accordingly, a plurality of transporting means can be operated independently in a transferring path without laying around power cables and control signal cables. (I.S.)

  13. Active transport and heat.

    Science.gov (United States)

    Tait, Peter W

    2011-07-01

    Increasing heat may impede peoples' ability to be active outdoors thus limiting active transport options. Co-benefits from mitigation of and adaptation to global warming should not be assumed but need to be actively designed into strategies.

  14. Transportation and Tourism

    Science.gov (United States)

    2012-08-01

    This project explored the link between transportation and tourism in Texas. A session on transit and tourism was organized and conducted as part of the 2012 Texas Transit Conference. Speakers at the session described public transit services oriented ...

  15. Risicobeheersing transport diervoeders

    NARCIS (Netherlands)

    Meijer, G.A.L.; Houwers, H.W.J.; Ipema, A.H.; Boekhoff, M.

    2007-01-01

    Welke knelpunten en oplossingsrichtingen bestaan in de praktijk van het transport diervoeders met betrekking tot de implementatie van de diervoederhygiëneverordening, toegespitst op informatievoorziening over wettelijke en bovenwettelijke eisen, naleving, controle en handhaving?

  16. Offsite transportation hazards assessment

    International Nuclear Information System (INIS)

    Burnside, M.E.

    1997-01-01

    This report documents the emergency preparedness Hazards Assessment for the offsite transportation of hazardous material from the Hanford Site. The assessment is required by the US Department of Energy (DOE) Order 151.1. Offsite transportation accidents are categorized using the DOE system to assist communication within the DOE and assure that appropriate assistance is provided to the people in charge at the scene. The assistance will initially include information about the load and the potential hazards. Local authorities will use the information to protect the public following a transportation accident. This Hazards Assessment will focus on the material being transported from the Hanford Site. Shipments coming to Hanford are the responsibility of the shipper and the carrier and, therefore, are not included in this Hazards Assessment, unless the DOE elects to be the shipper of record

  17. Manpower and Transportation Planning

    NARCIS (Netherlands)

    Lai, S.W.

    2014-01-01

    This thesis studies three routing and scheduling problems arising in manpower and transportation planning. These problems are rooted in real applications, and carry interesting characteristics. By exploiting the structures of the problems, this thesis provides effective mathematical models and

  18. Energy and transportation(*

    Directory of Open Access Journals (Sweden)

    Hermans J.

    2015-01-01

    Full Text Available Transportation takes a considerable and increasing fraction of the energy use worldwide, and more than half the oil consumption. By far the largest part is used by cars powered by internal combustion engines. The advantage of using internal combustion engines is that the energy density of liquid fuels is extremely high. The disadvantage is that gasoline and diesel engines have a poor performance: 20 to 25% only. How does this compare with electric cars? What are the alternative transportation systems and their efficiencies anyway? In this lecture we analyse the efficiency of various transport systems, using elementary physics principles. We will look at cars, buses, trains and TGVs, ships and aircraft. In addition, the efficiency of human powered vehicles will be considered. New and promising developments in the field of Intelligent Transportation Systems, like Cooperative Adaptive Cruise Control, are also discussed.

  19. MANAGEMENT OF TOURISM TRANSPORT

    Directory of Open Access Journals (Sweden)

    Gabriela Cecilia STĂNCIULESCU

    2016-06-01

    Full Text Available Undoubtedly, the relevance of transport activities in relation to tourism activities is essential, because it is extremely important and necessary to offer feasible information about tourism services to help consumer to choose the mode of travel to destinations ideal holiday. The methods used in the development of this hypothesis were explanation, exemplification (brief presentation of each mode of transport comparison etc. Analyzing the current situation of national, European and World Wide tourism transportation, the paper proposes practical applications able to explain that the conduct of economic activities as an integral part of the sector of trade and services within a national economy, would not be possible without the involvement of transport, whether by road, rail and air and naval. The results of the analysis are perfectly applicable offering guests the opportunity to reach the most remote corners of the world in a short time, high degree of comfort and affordable price.

  20. Crew Transportation Operations Standards

    Science.gov (United States)

    Mango, Edward J.; Pearson, Don J. (Compiler)

    2013-01-01

    The Crew Transportation Operations Standards contains descriptions of ground and flight operations processes and specifications and the criteria which will be used to evaluate the acceptability of Commercial Providers' proposed processes and specifications.

  1. Accident resistant transport container

    International Nuclear Information System (INIS)

    Andersen, J.A.; Cole, J.K.

    1980-01-01

    The invention relates to a container for the safe air transport of plutonium having several intermediate wood layers and a load spreader intermediate an inner container and an outer shell for mitigation of shock during a hypothetical accident

  2. Cooperative Transport Planning

    NARCIS (Netherlands)

    Zutt, J.; De Weerdt, M.M.

    2000-01-01

    To test and compare different forms of cooperative planning algorithms developed in the CABS project we use a generic simulator called MARS. Examples in the transportation sector are implemented in this simulator.

  3. Energy and transportation(*)

    Science.gov (United States)

    Hermans, J.

    2015-08-01

    Transportation takes a considerable and increasing fraction of the energy use worldwide, and more than half the oil consumption. By far the largest part is used by cars powered by internal combustion engines. The advantage of using internal combustion engines is that the energy density of liquid fuels is extremely high. The disadvantage is that gasoline and diesel engines have a poor performance: 20 to 25% only. How does this compare with electric cars? What are the alternative transportation systems and their efficiencies anyway? In this lecture we analyse the efficiency of various transport systems, using elementary physics principles. We will look at cars, buses, trains and TGVs, ships and aircraft. In addition, the efficiency of human powered vehicles will be considered. New and promising developments in the field of Intelligent Transportation Systems, like Cooperative Adaptive Cruise Control, are also discussed.

  4. Transport statistics 1996

    CSIR Research Space (South Africa)

    Shepperson, L

    1997-12-01

    Full Text Available This publication contains transport and related statistics on roads, vehicles, infrastructure, passengers, freight, rail, air, maritime and road traffic, and international comparisons. The information compiled in this publication has been gathered...

  5. CHARTB multigroup transport package

    International Nuclear Information System (INIS)

    Baker, L.

    1979-03-01

    The physics and numerical implementation of the radiation transport routine used in the CHARTB MHD code are discussed. It is a one-dimensional (Cartesian, cylindrical, and spherical symmetry), multigroup,, diffusion approximation. Tests and applications will be discussed as well

  6. Animal transportation networks

    Science.gov (United States)

    Perna, Andrea; Latty, Tanya

    2014-01-01

    Many group-living animals construct transportation networks of trails, galleries and burrows by modifying the environment to facilitate faster, safer or more efficient movement. Animal transportation networks can have direct influences on the fitness of individuals, whereas the shape and structure of transportation networks can influence community dynamics by facilitating contacts between different individuals and species. In this review, we discuss three key areas in the study of animal transportation networks: the topological properties of networks, network morphogenesis and growth, and the behaviour of network users. We present a brief primer on elements of network theory, and then discuss the different ways in which animal groups deal with the fundamental trade-off between the competing network properties of travel efficiency, robustness and infrastructure cost. We consider how the behaviour of network users can impact network efficiency, and call for studies that integrate both network topology and user behaviour. We finish with a prospectus for future research. PMID:25165598

  7. On linear transport problems

    International Nuclear Information System (INIS)

    Ignatovich, V.K.

    1989-01-01

    The equations. governing the transport of radiation in plane media of finite thickness are formulated and solved in terms reflection and extintion of radiation inthe case of semi infinite media. 13 refs

  8. Improved electron transport layer

    DEFF Research Database (Denmark)

    2012-01-01

    The present invention provides: a method of preparing a coating ink for forming a zinc oxide electron transport layer, comprising mixing zinc acetate and a wetting agent in water or methanol; a coating ink comprising zinc acetate and a wetting agent in aqueous solution or methanolic solution......; a method of preparing a zinc oxide electron transporting layer, which method comprises: i) coating a substrate with the coating ink of the present invention to form a film; ii) drying the film; and iii) heating the dry film to convert the zinc acetate substantially to ZnO; a method of preparing an organic...... photovoltaic device or an organic LED having a zinc oxide electron transport layer, the method comprising, in this order: a) providing a substrate bearing a first electrode layer; b) forming an electron transport layer according to the following method: i) coating a coating ink comprising an ink according...

  9. Spatial model of convective solute transport in brain extracellular space does not support a "glymphatic" mechanism.

    Science.gov (United States)

    Jin, Byung-Ju; Smith, Alex J; Verkman, Alan S

    2016-12-01

    A "glymphatic system," which involves convective fluid transport from para-arterial to paravenous cerebrospinal fluid through brain extracellular space (ECS), has been proposed to account for solute clearance in brain, and aquaporin-4 water channels in astrocyte endfeet may have a role in this process. Here, we investigate the major predictions of the glymphatic mechanism by modeling diffusive and convective transport in brain ECS and by solving the Navier-Stokes and convection-diffusion equations, using realistic ECS geometry for short-range transport between para-arterial and paravenous spaces. Major model parameters include para-arterial and paravenous pressures, ECS volume fraction, solute diffusion coefficient, and astrocyte foot-process water permeability. The model predicts solute accumulation and clearance from the ECS after a step change in solute concentration in para-arterial fluid. The principal and robust conclusions of the model are as follows: (a) significant convective transport requires a sustained pressure difference of several mmHg between the para-arterial and paravenous fluid and is not affected by pulsatile pressure fluctuations; (b) astrocyte endfoot water permeability does not substantially alter the rate of convective transport in ECS as the resistance to flow across endfeet is far greater than in the gaps surrounding them; and (c) diffusion (without convection) in the ECS is adequate to account for experimental transport studies in brain parenchyma. Therefore, our modeling results do not support a physiologically important role for local parenchymal convective flow in solute transport through brain ECS. © 2016 Jin et al.

  10. Transportation Network Topologies

    Science.gov (United States)

    Holmes, Bruce J.; Scott, John

    2004-01-01

    A discomforting reality has materialized on the transportation scene: our existing air and ground infrastructures will not scale to meet our nation's 21st century demands and expectations for mobility, commerce, safety, and security. The consequence of inaction is diminished quality of life and economic opportunity in the 21st century. Clearly, new thinking is required for transportation that can scale to meet to the realities of a networked, knowledge-based economy in which the value of time is a new coin of the realm. This paper proposes a framework, or topology, for thinking about the problem of scalability of the system of networks that comprise the aviation system. This framework highlights the role of integrated communication-navigation-surveillance systems in enabling scalability of future air transportation networks. Scalability, in this vein, is a goal of the recently formed Joint Planning and Development Office for the Next Generation Air Transportation System. New foundations for 21st thinking about air transportation are underpinned by several technological developments in the traditional aircraft disciplines as well as in communication, navigation, surveillance and information systems. Complexity science and modern network theory give rise to one of the technological developments of importance. Scale-free (i.e., scalable) networks represent a promising concept space for modeling airspace system architectures, and for assessing network performance in terms of scalability, efficiency, robustness, resilience, and other metrics. The paper offers an air transportation system topology as framework for transportation system innovation. Successful outcomes of innovation in air transportation could lay the foundations for new paradigms for aircraft and their operating capabilities, air transportation system architectures, and airspace architectures and procedural concepts. The topology proposed considers air transportation as a system of networks, within which

  11. Heat transport and storage

    International Nuclear Information System (INIS)

    Despois, J.

    1977-01-01

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

  12. Transportation and its Infrastructure

    OpenAIRE

    Ribeiro, Suzana K; Kobayashi, Shigeki; Beuthe, Michel; Gasca, Jorge; Greene, David; Lee, David S.; Muromachi, Yasunori; Newton, Peter J.; Plotkin, Steven; Sperling, Daniel; Wit, Ron; Zhou, Peter J

    2007-01-01

    Transport activity, a key component of economic development and human welfare, is increasing around the world as economies grow. For most policymakers, the most pressing problems associated with this increasing transport activity are traffic fatalities and injuries, congestion, air pollution and petroleum dependence. These problems are especially acute in the most rapidly growing economies of the developing world. Mitigating greenhouse gas (GHG) emissions can take its place among these other ...

  13. Transportation of radioactive elements

    International Nuclear Information System (INIS)

    Thubert, Francis; Rentien, Guy; Jacquet, Michel

    1981-01-01

    The production and marketing of artificial radioactive elements engaged in by the 'Office des Rayonnements Ionisants' requires the use of specially designed packagings and assorted means of transport. The authors begin by describing the different kinds of products involved and the forms of packagings needed, and go on to discuss the various means of transport used, underlining the fact that, in terms of number and gravity, the incidents that have occurred to date have indeed been few and far between [fr

  14. Tape transport mechanism

    International Nuclear Information System (INIS)

    Groh, E.F.; McDowell, W.; Modjeski, N.S.; Keefe, D.J.; Groer, P.

    1979-01-01

    A device is provided for transporting, in a stepwise manner, tape between a feed reel and takeup reel. An indexer moves across the normal path of the tape displacing it while the tape on the takeup reel side of the indexer is braked. After displacement, the takeup reel takes up the displaced tape while the tape on the feed reel side of the indexer is braked, providing stepwise tape transport in precise intervals determined by the amount of displacement caused by the indexer

  15. Monitoring of transport contamination

    International Nuclear Information System (INIS)

    Turkin, N.F.

    1980-01-01

    Organization of monitoring of transport contamination is considered. A particularly thorough monitoring is recommended to be carried out in loading-unloading operations. The monitoring is performed when leaving loading-unloading site and zone under control and prior to preventive examination, technical service or repair. The method of monitoring of auto transport contamination with high-energy β-emitters by means of a special stand permitting the automation of the monitoring process is described [ru

  16. Digital intelligence sources transporter

    International Nuclear Information System (INIS)

    Zhang Zhen; Wang Renbo

    2011-01-01

    It presents from the collection of particle-ray counting, infrared data communication, real-time monitoring and alarming, GPRS and other issues start to realize the digital management of radioactive sources, complete the real-time monitoring of all aspects, include the storing of radioactive sources, transporting and using, framing intelligent radioactive sources transporter, as a result, achieving reliable security supervision of radioactive sources. (authors)

  17. Spin transport in nanowires

    OpenAIRE

    Pramanik, S.; bandyopadhyay, S.; Cahay, M.

    2003-01-01

    We study high-field spin transport of electrons in a quasi one-dimensional channel of a $GaAs$ gate controlled spin interferometer (SPINFET) using a semiclassical formalism (spin density matrix evolution coupled with Boltzmann transport equation). Spin dephasing (or depolarization) is predominantly caused by D'yakonov-Perel' relaxation associated with momentum dependent spin orbit coupling effects that arise due to bulk inversion asymmetry (Dresselhaus spin orbit coupling) and structural inve...

  18. Thermoelectric transport in superlattices

    Energy Technology Data Exchange (ETDEWEB)

    Reinecke, T L; Broido, D A

    1997-07-01

    The thermoelectric transport properties of superlattices have been studied using an exact solution of the Boltzmann equation. The role of heat transport along the barrier layers, of carrier tunneling through the barriers, of valley degeneracy and of the well width and energy dependences of the carrier-phonon scattering rates on the thermoelectric figure of merit are given. Calculations are given for Bi{sub 2}Te{sub 3} and for PbTe, and the results of recent experiments are discussed.

  19. Transport of reservoir fines

    DEFF Research Database (Denmark)

    Yuan, Hao; Shapiro, Alexander; Stenby, Erling Halfdan

    Modeling transport of reservoir fines is of great importance for evaluating the damage of production wells and infectivity decline. The conventional methodology accounts for neither the formation heterogeneity around the wells nor the reservoir fines’ heterogeneity. We have developed an integral...... dispersion equation in modeling the transport and the deposition of reservoir fines. It successfully predicts the unsymmetrical concentration profiles and the hyperexponential deposition in experiments....

  20. Tipologia para a contabilidade ambiental

    Directory of Open Access Journals (Sweden)

    Nazlhe Faride Chein Schekaiban

    2007-06-01

    Full Text Available Este artigo revê a visão, as propostas e o desenvolvimento da contabilidade ambiental, refletindo sobre suas implicações, com a finalidade de descobrir e encontrar sua importância e situação. Para se chegar a esse resultado foi preciso realizar uma revisão epistemológica moldada e processo reflexivo de sustentabilidade e da aproximação ao usuário, da percepção da realidade contábil no México e da gerência interna das organizações. As conclusões mostram a contabilidade ambiental no México fora da re-alidade operativa do modelo contábil regional, aumentando a importância de se criar uma cultura capaz de examinar o controle da missão deste tipo de contabilidade.