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浅谈新疆库-拜煤田博孜墩矿区东区聚煤作用分析
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作者 赵宏峰 《科技信息》 2011年第2期348-348,共1页
本文通过对新疆库拜煤田博孜墩矿区东区聚煤作用分析,对煤矿区基地构造和聚煤期构造的地质条件初步分析,努力探索其分布规律和控煤作用,为煤田地质勘查工作奠定一定的基础。
关键词 基地构造 聚煤期构造 煤系地层
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Supply-Side Structural Reforms of China's Industries
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作者 黄群慧 《China Economist》 2017年第5期14-21,共8页
Supply-side structural reforms are structural adjustments and institutional reforms to address the mismatch between supply and demand and improve TFP. The mismatch is exhibited at the supply side and arises from struc... Supply-side structural reforms are structural adjustments and institutional reforms to address the mismatch between supply and demand and improve TFP. The mismatch is exhibited at the supply side and arises from structural contradictions and must be addressed through reforms. Supply-side structural reforms can be analyzed at the levels of firms, industries and government to arrive at theoretical and systematic conclusions that offer practical guidance. Based on this perspective, this paper proposes policy recommendations on how to deal with zombie firms, reduce cost for manufacturing companies, deepen SOE reforms, eliminate overcapacity, implement "Made in China 2025" and Internet+ strategies, promote Beijing-l^anjin-Hebei integrated development, as well as develop the Yangtze River Economic Belt and the old industrial bases of the northeast. 展开更多
关键词 supply-side structural reforms economic structure momentum structure andinstitutional mechanisms
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Mitogenomic analysis of the genus Panthera 被引量:3
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作者 WEI Lei WU XiaoBing +1 位作者 ZHU LiXin JIANG ZhiGang 《Science China(Life Sciences)》 SCIE CAS 2011年第10期917-930,共14页
The complete sequences of the mitochondrial DNA genomes of Panthera tigris,Panthera pardus,and Panthera uncia were determined using the polymerase chain reaction method.The lengths of the complete mitochondrial DNA se... The complete sequences of the mitochondrial DNA genomes of Panthera tigris,Panthera pardus,and Panthera uncia were determined using the polymerase chain reaction method.The lengths of the complete mitochondrial DNA sequences of the three species were 16990,16964,and 16773 bp,respectively.Each of the three mitochondrial DNA genomes included 13 protein-coding genes,22 tRNA,two rRNA,one O L R,and one control region.The structures of the genomes were highly similar to those of Felis catus,Acinonyx jubatus,and Neofelis nebulosa.The phylogenies of the genus Panthera were inferred from two combined mitochondrial sequence data sets and the complete mitochondrial genome sequences,by MP (maximum parsimony),ML (maximum likelihood),and Bayesian analysis.The results showed that Panthera was composed of Panthera leo,P.uncia,P.pardus,Panthera onca,P.tigris,and N.nebulosa,which was included as the most basal member.The phylogeny within Panthera genus was N.nebulosa (P.tigris (P.onca (P.pardus,(P.leo,P.uncia)))).The divergence times for Panthera genus were estimated based on the ML branch lengths and four well-established calibration points.The results showed that at about 11.3 MYA,the Panthera genus separated from other felid species and then evolved into the several species of the genus.In detail,N.nebulosa was estimated to be founded about 8.66 MYA,P.tigris about 6.55 MYA,P.uncia about 4.63 MYA,and P.pardus about 4.35 MYA.All these estimated times were older than those estimated from the fossil records.The divergence event,evolutionary process,speciation,and distribution pattern of P.uncia,a species endemic to the central Asia with core habitats on the Qinghai-Tibetan Plateau and surrounding highlands,mostly correlated with the geological tectonic events and intensive climate shifts that happened at 8,3.6,2.5,and 1.7 MYA on the plateau during the late Cenozoic period. 展开更多
关键词 Panthera uncia Panthera pardus Panthera tigris MTDNA PHYLOGENY divergence time Qinghai-Tibetan Plateau
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