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浅谈自密实混凝土的配制及性能要求 被引量:1
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作者 陈佩培 《应用能源技术》 2007年第12期3-4,共2页
自密实混凝土是高性能混凝土的一个重要发展方向。自密实混凝土作为一种高性能混凝土,为了具有好的工作性能,必须根据需要进行自密实混凝土的配制。
关键词 自密实混凝土 配制 工作性能
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Polynomial rings over commutative linearly compact rings 被引量:2
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作者 薛卫民 《Chinese Science Bulletin》 SCIE EI CAS 1996年第6期459-461,共3页
A ring R denotes a commutative associative ring with identity and each R-module isunitary. For the concepts and symbols not defined here we refer to refs. [1, 2]. We callR co-Noetherian (V’amos ring) in the case wher... A ring R denotes a commutative associative ring with identity and each R-module isunitary. For the concepts and symbols not defined here we refer to refs. [1, 2]. We callR co-Noetherian (V’amos ring) in the case where each finitely cogenerated R-module isartinian (linearly compact). Mller Theorem states that R has a Morita duality if and onlyif R is both V’amos and linearly compact (see Theorems 4.3 and 4.5 in ref [2]). In ref.[4], Anh proved that each linearly compact ring is V’amos, hence it has a Morita 展开更多
关键词 Vamos RINGS LINEARLY compact modules MORITA (self-)duality.
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