767 resultados para Stamp collectors


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[ES]El objetivo principal de este documento es diseñar todo el proceso de fabricación de la parte interna de capó. Esta acción se realiza con la ayuda de un software informático llamado Pam-Stamp. Es un programa de simulación virtual de procesos de conformado de chapa. El proceso elegido es la estampación en frío. Como resultados final se conocen la geometría tras la estampación, así como todas las propiedades físicas del producto elegido.

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A theoretical approach has been used to evaluate the performance of facade integrated solar collectors based on the physical collector parameters such as absorber plate absorptance, transmittance of the glazed cover plate and insulation thickness. A 1D steady state model, based on the Hottel Whillier Bliss equation, was employed to determine the effect of changing parameters to meet façade integration criteria.

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The act of prescribing pharmaceutical drugs to patients is normally the site of judgements about the drug’s efficacy and safety. The success of treatments and the licences for commodities depend on the biochemical identity of the drugs and of their path and transformations inside the body. However, the ‘supply chain’ outside the body is eschewed by such discourse, and its importance for both pharmaceutical brands and physician-centred historiographies is ignored. As this ethnographic fieldwork on Tibetan and Chinese medicines in Sichuan shows, overlooked social actors ensure reliable knowledge about medicinal things and materials long before patients take their medicine. This paper takes a step back from the final products—clearly defined as ‘Tibetan’ or ‘Chinese’—and introduces those who produce and distribute them. Via observations of particular regimes of circulation and processing, the actions of collecting, manufacturing, transporting, and educating appear as the first and foremost acts of efficacy and safety.

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Pictured here from left to right are James Hogan, Librarian, and President James Gibson with a set of stamps commerating Sir Isaac Brock that were issued from the Bailiwick of Guernsey in October of 1969.

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A commemorative stamp produced by Canada Post in 2010 in honour of Dorothy Rungeling, "Canada's 1st Woman to Solo a Helicopter".

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An article discussing the accomplishments of Dorothy Rungeling and the announcement of a Canada Post stamp in her honour. Dorothy Rungeling is 99 at the time of the interview.

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Round stamp 2 cm in diameter. This has the image of a lion within a crown holding a flower. The inscription underneath is "sans changer" which means constant or without change. The stamp is 1 cm thick and it has a 1 cm stem protruding from it.

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Square metal stamp, 2 1/2 cm x 6 1/2 cm, with the words "P.C. Band, Toronto, Ontario" engraved on it. The bar is 1 cm thick.

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Round metal stamp which is 2 cm in diameter. The metal forms a cup above the seal which holds an amethyst piece. The amethyst is broken off and cracked.

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The present paper examines building integrated solar collectors with absorbers of polymeric materials. Efficiency measurements of façade-integrated collectors with non-selective black and spectrally selective coloured absorbers are carried out. The performance of the polymeric absorber was compared with solar glass and polycarbonate twin-wall sheets as collector cover. Simulations demonstrate a high solar fraction for a solar combisystem with façade collectors for a well-insulated house in a Nordic climate. Two examples of house concepts with façade collectors are presented which address a new type of customer than the solar enthusiasts with special interest in renewable energy