957 resultados para Jung, C. G.
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Based on the 16S mitochondrial partial gene sequences of 29 genera, containing 26 from Oedipodidae and one each from Tanaoceridae, Pyrgomorphidae and Tetrigidae (as outgroups), the homologus sequences were compared and phylogenetic analyses were performed. A phylogenetic tree was inferred by neighbor-joining (NJ). The results of sequences compared show that: (i) in a total of 574 bp of Oedipodidae, the number of substituted nucleotides was 265 bp and the average percentages of T, C, A and G were 38.3%, 11.4%, 31.8% and 18.5%, respectively, and the content of A+T (70.1%) was distinctly richer than that of C+G (29.9%); and (ii) the average nucleotide divergence of 16S rDNA sequences among genera of Oedipodidae were 9.0%, among families of Acridoidea were 17.0%, and between superfamilies (Tetrigoidea and Acridoidea) were 23.9%, respectively. The phylogenetic tree indicated: (i) the Oedipodidae was a monophyletic group, which suggested that the taxonomic status of this family was confirmed; (ii) the genus Heteropternis separated from the other Oedipodids first and had another unique sound-producing structure in morphology, which is the type-genus of subfamily Heteropterninae; and (iii) the relative intergeneric relationship within the same continent was closer than that of different continents, and between the Eurasian genera and the African genera, was closer than that between Eurasians and Americans.
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“CIMS中车间控制器软件开发”来源于国家863高技术计划,它是“CIMS系统技术集成开发环境”的一个重要组成部分,也是柔性制造系统多级管理和控制”的主要部分之一,作者完成了车间控制器的一项十分重要而又非常复杂的工作-制定短期生产计划(包括车间级任务的时间分解和空间分见(单元重构))。1. 根据时间分解要求,针对具有异步特征的车间级任务,本文提出一种有效的启发式方式-TD法。通过TD法,可望将整个计划期内具有异步特征的总任务分解成为多个时间段内呈同步特征的子任务。2. 根据空间分解要求和CIMS特点,针对具有同步特征的子任务,本文提出“成组-平衡-再成组”思想及相应的方法-G-B-C。通过G-B-C,可以综合解决负荷平衡问题和机器/工作成组问题,从而,为虚拟单元控制器的实现开辟了一条道路。3. 软件开发文中所提方法均已在PC上用C言实现,实验证明,本文所提思想和方法是可行的,有效的。
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2011
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