نتایج جستجو برای: moulding
تعداد نتایج: 1601 فیلتر نتایج به سال:
RTM technology is an attractive alternative for high strength steels by composites with a high fibre volume content. The main advantage is a reduction of the assembly costs, since components can be made in one piece rather than out of a compilation of components. Above that the lower specific weight of a composite product results in a weight reduction. In order to obtain more fundamental knowle...
Cross-sectional profiles of medieval mouldings are often considered to be a vital form of data to Art Historians. Mouldings were often used to highlight salient areas of buildings, and they provide a wealth of information. To date little use of computer technology has been made in their acquisition, storage and analysis. This paper presents a representation for such planar curves, and an algori...
The consequences to fitness of several types of small age-specific effects on mortality are formulated mathematically. An effect of given form always has a larger consequence, or at least one as large, when it occurs earlier. By reference to a model in which mortality is constant it is shown that this implication cannot be avoided by any conceivable organism. A basis for the theory that senesce...
A simple method for the formation of multiscale metal patterns is presented using hierarchical polymeric stamps with perfluoropolyether (PFPE). A dual-scale PFPE structure is made via two-step moulding process under partial photocrosslinking conditions. The hierarchical PFPE stamp enables multiscale transfer printing (MTP) of metal pattern in one step within microwells as well as on curved surf...
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