Internet尽力而为服务模式在支持群组命令传输过程中,容易产生资源竞争问题,从而导致部分命令传输丢失造成群组命令传输失败.提出基于Internet构建有效路径统计网络(Effective Path Statistics Network,EPSN),把基于Internet网络群组命...Internet尽力而为服务模式在支持群组命令传输过程中,容易产生资源竞争问题,从而导致部分命令传输丢失造成群组命令传输失败.提出基于Internet构建有效路径统计网络(Effective Path Statistics Network,EPSN),把基于Internet网络群组命令传输问题转换成基于EPSN网络群组多约束多目标优化问题(Group Multi-Constraints Multi-Objective Optimization Problem,GM CM OOP).提出基于独占区域粒子群优化算法(Particle Sw arm Optimization based on Sole Zone,PSOSZ).该算法,根据独占搜索空间划分思想搜索GMCMOOP问题的解.实验表明,在群组命令规模分别在最大量175和最小量75下,该模型在基于Internet环境部署的EPSN网络规模不断变化下,GCT成功率相对于经典路由算法DSA和Yen有较好性能,同时误差率相对基本粒子群有较好性能.展开更多
The 150-km-long Feather River ultramafic belt(FRB) of the northern Sierra Nevada,California,consists of serpentinized ultramafic rocks,gabbroic rocks,with lesser amounts of amphibolitic rocks. The gabbroic rocks conta...The 150-km-long Feather River ultramafic belt(FRB) of the northern Sierra Nevada,California,consists of serpentinized ultramafic rocks,gabbroic rocks,with lesser amounts of amphibolitic rocks. The gabbroic rocks contain metagabbro and dikes within it. Based on the electron microprobe analyses,the metagabbro consists of typical igneous composition for clinopyroxene and early hornblende,indicating that they bear low grade metamorphism. The gabbroic rocks show Nb and Ta depletion in primitive-mantle normalized plots that is similar to typical island arc rocks. We present that the metagabbro within the ultramafic rocks is forming in the suprasubduction zone setting. Tectonic models are presented for the metagabbro and amphibolitic rocks in FRB. The low P burial metamorphism of the upper plate metagabbro and the high grade amphibolitic rocks are typical of relationships of upper plate ophiolites to metamorphic soles. The amphibolitic rocks record as metamorphic sole forming during subduction initiation beneath the ultramafic rocks and metagabbro. The unusual and protracted tectonic history of the FRB is similar to other ophiolite belts of the Cordillera of California but differs in the lack of crustal rocks.展开更多
文摘Internet尽力而为服务模式在支持群组命令传输过程中,容易产生资源竞争问题,从而导致部分命令传输丢失造成群组命令传输失败.提出基于Internet构建有效路径统计网络(Effective Path Statistics Network,EPSN),把基于Internet网络群组命令传输问题转换成基于EPSN网络群组多约束多目标优化问题(Group Multi-Constraints Multi-Objective Optimization Problem,GM CM OOP).提出基于独占区域粒子群优化算法(Particle Sw arm Optimization based on Sole Zone,PSOSZ).该算法,根据独占搜索空间划分思想搜索GMCMOOP问题的解.实验表明,在群组命令规模分别在最大量175和最小量75下,该模型在基于Internet环境部署的EPSN网络规模不断变化下,GCT成功率相对于经典路由算法DSA和Yen有较好性能,同时误差率相对基本粒子群有较好性能.
基金financially supported by the National Natural Science Foundation of China (Nos. 40739904, 41072093, and 41302117)SINOPEC
文摘The 150-km-long Feather River ultramafic belt(FRB) of the northern Sierra Nevada,California,consists of serpentinized ultramafic rocks,gabbroic rocks,with lesser amounts of amphibolitic rocks. The gabbroic rocks contain metagabbro and dikes within it. Based on the electron microprobe analyses,the metagabbro consists of typical igneous composition for clinopyroxene and early hornblende,indicating that they bear low grade metamorphism. The gabbroic rocks show Nb and Ta depletion in primitive-mantle normalized plots that is similar to typical island arc rocks. We present that the metagabbro within the ultramafic rocks is forming in the suprasubduction zone setting. Tectonic models are presented for the metagabbro and amphibolitic rocks in FRB. The low P burial metamorphism of the upper plate metagabbro and the high grade amphibolitic rocks are typical of relationships of upper plate ophiolites to metamorphic soles. The amphibolitic rocks record as metamorphic sole forming during subduction initiation beneath the ultramafic rocks and metagabbro. The unusual and protracted tectonic history of the FRB is similar to other ophiolite belts of the Cordillera of California but differs in the lack of crustal rocks.
