197 research outputs found

    Study of the photovoltaic effect in thin film barium titanate

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    The photoelectric effect in structures consisting of metal deposited barium titanate film silicon is described. A radio frequency sputtering technique is used to deposit ferroelectric barium titantate films on silicon and quartz. Film properties are measured and correlated with the photoelectric effect characteristics of the films. It was found that to obtain good quality pin hole free films, it is necessary to reduce the substrate temperature during the last part of the deposition. The switching ability of the device with internal applied voltage is improved when applied with a ferroelectric memory device

    SWATH-Un nuevo concepto para la Seguridad y Protección en el mar

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    SWATH means Small Waterplane Area Twin Hull and is guarantor for excellent sea keeping behaviour.The basis of this ship type was born in the 1960’s and 70’s when semi-submersible vessels were introduced to the offshore market. Naval architects developed these vessels further and it was used as navy test craft, pilot tender, yachts, passenger boats etc.The German Shipyard Abeking & Rasmussen has more than 100 year of experience in innovative ships and designs. Since 1999 more than 20 SWATH vessels like pilot tender, pilot station vessel, explorer yacht, wind park maintenance tender, offshore patrol vessels and a hydrographical research vessel were built.This paper should give an insight to the SWATH technology and the implementation in the market. Different applications and ideas will be shown. Whatever you need - a navy ship, a workboat, a multipurpose platform a ferry or a yacht – there are many possibilities.SWATH significa Small Waterplane Area Twin Hull ( Cascos Dobles con Pequeña área de Flotación) embarcación que garantiza un excelente comportamiento marinero. El fundamento de este tipo de buque naci. en los a.os 1960 y 70, cuando se introdujeron en el mercado offshore las plataformas semisumergibles. Desde entonces los arquitectos navales de Abeking & Rasmusen han desarrollado más y nuevos diseños que han sido utilizados como embarcaciones de prueba para la marina armada, transporte de pilotos, yates, barcos de pasajeros, etc.El astillero alemán Abeking & Rasmussen tiene más de 100 años de experiencia en construcción de barcos y de llevar a cabo diseños innovadores. A partir de 1999, Abeking & Rasmussen ha contru.do más de 20 embarcaciones tipo SWATH para servicios tales como transporte de pilotos, buque-estación de pilotos, yate explorador, embarcaciones para el mantenimiento de parques eólicos en costa afuera, buques de patrulla en alta mar y un barco de investigación hidrográfica.Esta presentaci.n dar. una visi.n de la tecnolog.a SWATH y sus aplicaciones en el mercado. Se mostrarán sus diferentes aplicaciones e ideas. Lo que Usted necesite - un buque para la Armada, un barco de trabajo, una plataforma multiusos, un ferry o un yate – contamos con muchas y diversas opciones. 

    Examining Phenotypic Structural Traits as Indicators for Reproductive Longevity Success in Sows

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    The objective of this study was to examine structure and body conformation traits of 494 gilts/sows as a prediction of reproductive longevity in sows. This study focused on specific traits including body length, body depth, front and rear pastern angles, knee angle, and hock angle. The primary method of data collection was based on videos. Still images were pulled from the videos when the sow was standing in a natural stance. The images were analyzed and interpreted objectively with Image J which gives the availability to measure distance and angles given known references in the images. The structural data was analyzed for association with reproductive efficiency including feed intake, wean to estrus interval, weight loss, number born alive, and number of parities achieved. The angle measurements on young sows are not as consistent as older, calmer sows. Front pastern angle was significantly associated with P1 Success at 112 days of age. This trait is critical to early survival before any animals are culled. Angles showed significance or trended toward significance predominately at the early first gestation timepoint. Height at flank at all timepoints is significantly associated with LTNP. Smaller animals have a greater success reaching parity 4 and significant advantages in lifetime reproduction traits compared to the larger animals. As producers are making selections on their replacement gilts, they should avoid selecting the largest females

    Magnetoresistance devices Progress report

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    Investigating galvanomagnetic effects in developing higher magnetoresistance devices for low voltage high current switche

    Electron beam evaporated high mobility thin films of indium antimonide

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    Electron beam evaporation and recrystallization of InSb thin films yielding high Hall mobilitie

    Diseño de embarcaciones de alto desempeño usando Simulaciones

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    Simulation-based design increasingly replaces traditional experience-based design. This article gives an overview of techniques now used in advanced industry practice, with particular focus on navy applications. The article covers the basics of the techniques, illustrating approaches and state of the art with applications taken from the experience of Germanischer Lloyd.El diseño basado en simulaciones crecientemente está remplazando al diseño basado en la experiencia. Este trabajo presenta una visión general de las técnicas empleadas actualmente en prácticas industriales avanzadas, con particular énfasis en el diseño de buques militares. El trabajo cubre los aspectos básicos e ilustra el estado del arte con aplicaciones tomadas de la experiencia del Germanischer Lloyd

    Einzelmolekül-Kraftspektroskopie an Sulfatase/Glykosaminoglykan-Komplexen

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    Grannemann S. Einzelmolekül-Kraftspektroskopie an Sulfatase/Glykosaminoglykan-Komplexen. Bielefeld: Universität Bielefeld; 2019

    A study of metal insulator semiconductor magnetoresistance, bulk, and surface properties of indium antimonide

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    Metal-insulator-magnetoresistance, bulk, and surface properties of indium antimonide compound semiconductor materia
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