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De Lange, G. (author), Jackson, B.D. (author), Eggens, M. (author), Golstein, H. (author), Jochemsen, M. (author), Laauwen, W.M. (author), De Jong, L. (author), Kikken, S. (author), Kroug, M. (author), Zijlstra, T. (author)We describe the current status of the HIFI mixer units for Band 3 and Band 4. The mixer units cover the 800-960 GHz and 960-1120 GHz frequency range and have a 4-8 GHz IF frequency band. The major requirements and the design strategy are described. Functional tests of the magnet, the de-flux heater, IF-circuit, and the corrugated horn were...conference paper 2004
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Bogers, B.A. (author), Van den Berg, D. (author), Zijlstra, S. (author), De Jong, P. (author)Considering the small addition in the housing supply of newly built dwellings, meeting sustainable goals in the Netherlands will have to come from the existing housing supply. TU Delft’s Solar Decathlon 2014 design focuses on achieving a zero energy renovation that is both sustainable as well as attractive for inhabitants of the most frequent...conference paper 2015
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De Lange, G. (author), Jackson, B.D. (author), Jochemsen, M. (author), Laauwen, W.M. (author), De Jong, L. (author), Kroug, M. (author), Zijlstra, T. (author), Klapwijk, T.M. (author)We describe the performance of the Band 3 and Band 4 Flight Model mixer units for Herschel/HIFI Instrument. These units are part of the Focal Plane Unit of HIFI. The band 3 and 4 mixer units cover the 800-960 GHz and 960-1120 GHz frequency range and have a 4-8 GHz IF frequency band. The sensitivities of the mixers within the HIFI setting are...conference paper 2006
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Zuidema, F.C. (author), Feitsma, K.S. (author), De Jong, H. (author), Zijlstra, M. (author), Brinkman, J.H. (author), Saeijs, H.L.F. (author), Visser, J. (author), Smittenberg, J.C. (author), Pavlicek, K.O. (author)Door de afsluiting van het Brouwershavense Gat in 1971 ontstond het Grevelingen Meer; een zout binnenmeer van ca. 14.000 ha, waarvan ca. 3.000 ha drooggevallen zandplaten, slikken en schorren. Het gebied waarover deze interim nota handelt, wordt gevormd door de buitendijkse gronden direct grenzend aan Goeree-Overflakkee, bekend als de Slikken...report 1973