المؤلفون: F. J. Barroso, P. Guarner, C. López

المصدر: Materiales de Construccion, Vol 62, Iss 307, Pp 455-460 (2012)

مصطلحات موضوعية: electrical properties, temperature, railway track, sleeper, rail, Materials of engineering and construction. Mechanics of materials, TA401-492

الوصف: The electrical resistance of the sleeper-fastening elements system in a wet railway track is a very important parameter. This is because the rails are electric conductors in the circuit of signaling and traction systems. This electrical resistance, defined as a characteristic value of the sleeper-fastening elements-water system is a measurand obtained with reference measurement procedures as described in international standards. But it is subject to many kinds of undefinitions that result in a very high dispersion. In this work the dependence of this parameter on variables such as the water conductivity, the temperature and the relative humidity is shown, and several ways to reduce it to minimum values are also established.

وصف الملف: electronic resource

العلاقة: http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/726Test; https://doaj.org/toc/0465-2746Test; https://doaj.org/toc/1988-3226Test

الوصول الحر: https://doaj.org/article/74e5b8841f9a438e97e4e226beccb02fTest

المؤلفون: J. Sánchez-Montero, M.ª C. Andrade, J. Fullea, P. Linares, G. Sotorrío, F. J. Barroso, G. Rentero

المصدر: Informes de la Construccion, Vol 66, Iss 535, Pp e027-e027 (2014)

مصطلحات موضوعية: sensores, monitorización, cubiertas, museo del prado, Architecture, NA1-9428, Building construction, TH1-9745

الوصف: Debido a unas filtraciones detectadas al terminar la renovación de las cubiertas del Museo del Prado se decidió instalar sensores en sus diversas capas, cuyo diseño no es tradicional. Después de más de diez años de registro, los sensores de agua líquida muestran la acumulación de humedad en la capa de impermeabilización líquida. Sin embargo, no se ha detectado la presencia de agua líquida en las capas inferiores. Los sensores de humedad relativa muestran la presencia de condensaciones locales. Los sensores de temperatura muestran la capacidad aislante de las diferentes capas de la cubierta. Y los sensores de deformación muestran un incremento de deformación continuo con el tiempo, posiblemente debido a la fluencia del conjunto. Como conclusión del estudio, se puede afirmar que el comportamiento de la cubierta ha sido correcto ya que no se ha detectado la aparición de agua líquida en las capas internas de la cubierta.

وصف الملف: electronic resource

العلاقة: http://informesdelaconstruccion.revistas.csic.es/index.php/informesdelaconstruccion/article/view/3483Test; https://doaj.org/toc/0020-0883Test; https://doaj.org/toc/1988-3234Test

الوصول الحر: https://doaj.org/article/7e801222fdcf41e38ddfb1cb26b9e84cTest

المؤلفون: P. Linares, F. J. Barroso, M.ª C. Andrade, José Fullea, G. Rentero, G. Sotorrío, J. Sánchez-Montero

المصدر: Scipedia Open Access
Scipedia SL
Informes de la Construcción; Vol. 66 No. 535 (2014); e027
Informes de la Construcción; Vol. 66 Núm. 535 (2014); e027
Informes de la Construccion, Vol 66, Iss 535, Pp e027-e027 (2014)
Informes de la Construccion, Vol 66, Iss 535, p e027 (2014)

مصطلحات موضوعية: Museo del Prado, Waterproofing, Engineering, Civil, Environmental Engineering, Liquid water, Engineering, Multidisciplinary, NA1-9428, lcsh:TH1-9745, monitorización, Sensores, Architecture, roof, Engineering, Ocean, Geomorphology, Roof, Engineering, Aerospace, Engineering, Biomedical, lcsh:NA1-9428, Sensor, Civil and Structural Engineering, Building construction, Prado Museum, Humidity, Building and Construction, Computer Science, Software Engineering, Engineering, Marine, Engineering, Manufacturing, Engineering, Mechanical, monitoring, Engineering, Industrial, lcsh:Architecture, TH1-9745, Geology, lcsh:Building construction, cubiertas

الوصف: In the current paper we present the results of the monitoring of the hygrothermal behaviour during the last ten years of the El Prado Museum roof. Sensors were installed in the south roof of the museum after it underwent mayor repair following a leak over a very important exhibition hall (the one holding Velazquez’s Las Meninas painting). The liquid water sensors reveal that water is retained at the waterproofing layer. These sensors do not show water presence in lower layers of the roof. The humidity sensors show condensation when the ambient temperature drops. The temperature sensors show the insulating capacity of the different layers of the roof, which effectively attenuate the outside temperature changes. The strain sensors placed on the liquid waterproofing layer show a constant increase of strain with time. In summary, the repaired roof can be considered to perform as intended and no more leaks have been detected.
Debido a unas filtraciones detectadas al terminar la renovación de las cubiertas del Museo del Prado se decidió instalar sensores en sus diversas capas, cuyo diseño no es tradicional. Después de más de diez años de registro, los sensores de agua líquida muestran la acumulación de humedad en la capa de impermeabilización líquida. Sin embargo, no se ha detectado la presencia de agua líquida en las capas inferiores. Los sensores de humedad relativa muestran la presencia de condensaciones locales. Los sensores de temperatura muestran la capacidad aislante de las diferentes capas de la cubierta. Y los sensores de deformación muestran un incremento de deformación continuo con el tiempo, posiblemente debido a la fluencia del conjunto. Como conclusión del estudio, se puede afirmar que el comportamiento de la cubierta ha sido correcto ya que no se ha detectado la aparición de agua líquida en las capas internas de la cubierta.

وصف الملف: text/html; application/pdf; text/xml

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5724682db70ff3163c1e5d591aa6d25aTest
https://www.scipedia.com/public/Sanchez-Montero_et_al_2014aTest

المؤلفون: F. J. Barroso, Paz Guarner, C. López

المصدر: Materiales de Construcción. 62:455-460

مصطلحات موضوعية: Work (thermodynamics), Engineering, business.industry, Electrical engineering, Mechanical engineering, Building and Construction, Traction system, Reference measurement, Electrical resistance and conductance, Mechanics of Materials, General Materials Science, Relative humidity, Water conductivity, Dispersion (water waves), business, Electrical conductor

الوصف: The electrical resistance of the sleeper-fastening elements system in a wet railway track is a very important parameter. This is because the rails are electric conductors in the circuit of signaling and traction systems. This electrical resistance, defined as a characteristic value of the sleeper-fastening elements-water system is a measurand obtained with reference measurement procedures as described in international standards. But it is subject to many kinds of undefinitions that result in a very high dispersion. In this work the dependence of this parameter on variables such as the water conductivity, the temperature and the relative humidity is shown, and several ways to reduce it to minimum values are also established.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::b18a87f67c01606323ea4f51e412e3f0Test
https://doi.org/10.3989/mc.2012.06411Test

المؤلفون: A.. Schaeffner, F. J. Barroso Viseras, Zyed Bouzarkouna, Sophie Verdiere, P.. Jannes, S.. Blanchais

المصدر: Day 4 Thu, November 13, 2014.

مصطلحات موضوعية: Engineering, chemistry.chemical_compound, Development plan, Field (physics), chemistry, business.industry, Systems engineering, Carbonate, business, Industrial engineering, History matching

الوصف: As oil production demand increases, the industry as a whole faces the need to constantly renew its reserves by either discovering new fields or giving a second life to mature fields. The latter is particularly challenging for geoscientists and reservoir engineers. This paper presents a non-deterministic approach used to design a robust development plan for a complex mature carbonate field with more than a hundred wells and forty years of production history. This innovative approach can be applied to any redevelopment project for uncertainty assessment and risk management. The first step is a 2G&R synthesis performed by a multidisciplinary team to gather all the data, verify their consistency and assess the key heterogeneities and potential influential parameters to quantify the different production mechanisms. At this crucial stage, experimental design is extensively used. This synthesis enables a solid history-matched simulation case with an associated redevelopment strategy to be built efficiently. Secondly, the thorough knowledge of the field and the expected production mechanisms in the redevelopment phase are the key drivers to identify the most impacting static and dynamic parameters. These parameters are used as inputs for experimental design on both historical and redevelopment periods. Assisted History Matching techniques enable multiple simulation models honoring historical data to be found; the quality of these models is assessed by considering different objective functions. The history-matched models are then used to derive a reserves distribution for the project. Models outputs are combined to generate 3-D probability grids for properties such as oil saturation, in order to optimize the initial development plan and improve its robustness. This study highlights the importance of a strong and consistent 2G&R synthesis. An in-depth understanding of the field, combined with Assisted History Matching techniques, leads to models that honor the long production history, enabling the development scenario to be optimized.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::11239309e01427efbbc5447dd6965f3dTest
https://doi.org/10.2118/171904-msTest