Aim: The purpose of this study is to compare the marginal fit crowns manufactured using different CAD/CAM materials on 2 types finish line design.Material and Method: Tooth preparations were made by creating lines (rounded shoulder, chamfer) an acrylic mandibular second premolar model. Impressions taken each preparation polyvinylsiloxane impression material, blocks with three compositions inclu...

in this study, the possibility of microwave finish drying for two types of dried grapes (natural and sultana) was investigated. the samples were washed in water bath at given temperature ranges (25 and 45 c) for 30 to 60 minutes. after dewatering the samples, they were dried using microwave (at two powers: 270 and 450 w) and hot air convective dryer (at 50 c). water gain (%), effective moistu...

Univ.-Prof. Dr. Lothar Fickert Die großen Beiträge der Elektrotechnik zu unserer Zivilisation liegen auf den Gebieten der Informationsund Kommunikationstechnik sowie auf der zunehmenden Verbreitung der elektrischen Energie als energetischer Grundversorgung, wobei festzustellen ist, dass die elektrische Energieversorgung für die IKT-Technologien eine essenzielle Voraussetzung darstellt. Bei der ...

Das Management multimedialer Lernsysteme in der beruflichen Bildung. In: HMD – Theorie und Praxis der Wirtschaftsinformatik. Heft 205 (36. Jg.), 1.1999: Multimediale Bildungssysteme, S. 34–42 [aktualisierter Nachdruck in: Loebe, H.; Severing, E. (Hrsg.): Betriebliche Weiterbildung im Internet – Dikaktik, Produktion, Organisation. Das Projekt Cornelia. Bertelsmann: Bielefeld 2000, S. 63–74] Ersc...

This paperi ntroduces thec urrent results of thed ebates within the NetherlandsB iometricsF orum (NBF) on thep rinciplest hat lead to am eaningful safe andr eliableu se of biometrics.B iometricsi sb ecoming an important element of ouri nformation society, butn ew technologyi so ften initially used incorrectly. This is partly duetoso-calledfallacies of thewrong level.Inpractice, large-scale syst...

73 Assignee: Vita Zahnfabrik H. Rauter GmbH & OTHER PUBLICATIONS Co. KG. Bad Sacki G O , E5ad SacKIngen, Uermany Funkschau Artuell, vol. 18, 1986, p. 7, “Frankreich: Zah t d C ter. 21 Appl. No.: 08/540,751 nersaLZ auS dem Uomputer Technik, Dental-Labor, vol. XXXV, Heft Apr. 1987, pp. 22 Filed: Oct. 11, 1995 479–482, “Das Hi-Ceram-Verfahren Metall freie Kronen O O auf einem Keramikgertist'. Rela...

This paper describes an experimental investigation into the patterns of groove wear development and their monitoring at the minor cutting edge of metal-cutting tools. It is shown that these grooves, once formed, adversely affect the dimensional accuracy and surface roughness in finish machining. Multivariate time series stochasticmodels are developed directly from vibration signals, measured wi...