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1Early Paleozoic granulite-facies metamorphism and anatexis in the northern West Qinling orogen: Monazite and zircon U-Pb geochronological constraints显示文摘In the northern West Qinling orogen(WQO), granulite-facies metamorphic rocks are recognized within the Qinling Complex. These rocks are composed of amphibole-bearing two-pyroxene granulite and garnet-sillimanite gneiss with widespread migmatitization. We investigate three granulite-facies samples and one leucosome sample from the Qinling Complex, which are suitable for U-Pb analyses of zircon and monazite. SHRIMP and LA-ICPMS U-Pb age dating of zircon and monazite from two pelitic granulites provides weighted mean ages of 430±4 Ma(MSWD=0.88) and 433±4 Ma(MSWD=0.27), respectively.Based on the petrographic characteristics and zircon CL imagery, we postulated a ca. 430 Ma metamorphic timing for the pelitic granulites. LA-ICPMS zircon U-Pb data from an amphibole two-pyroxene granulite sample reports two weighted mean age groups:424±3 Ma(MSWD=0.45) and 402±3 Ma(MSWD=1.4), which were interpreted as granulite-facies metamorphic and retrograde ages, respectively. LA-ICPMS U-Pb dating of zircons from the leucosome sample yields a weighted mean age of 426±2 Ma(MSWD=0.3), which is interpreted as the crystallization age of the leucosome. These data indicate that the West QOB experienced early Paleozoic granulite-facies metamorphism and anatexis similar to the East QOB. However, it remains unclear whether the early Paleozoic granulite facies metamorphism resulted from an arc setting created by the northward subduction of the Shangdan ocean or from a continental collisional orogenic event.MAO XiaoHong ZHANG JianXin YU ShengYao LI YunShuai YU XingXing LU ZengLong 2017Science China Earth Sciences2017,60,5:12
2Metamorphic Evolution and Tectonic Implications of the Granulitized Eclogites from the Luliangshan Terrane in the North Qaidam Ultrahigh Pressure Metamorphic Belt,NW China: New Constraints from Phase Equilibrium Modeling显示文摘The granulitized eclogites from the Luliangshan terrane of the North Qaidam UHP metamorphic belt occur as lenses within pelitic gneisses and orthogneisses. Combined petrologic data and phase equilibrium modeling indicate a multi-stage metamorphic history of the granulitized eclogites:(1) an earlier eclogite facies metamorphism(P>18.5 kbar, T> 830℃) is deduced from omphacite relics in the matrix and rare omphacite inclusions within garnet. The possible assemblage is garnet+omphacite+rutile+ quartz;(2) the early stage of high pressure granulite facies assemblages(garnet+clinopyroxene+ plagioclase+rutile+quartz+liquid) developed in the early decompression process has a P-T regime of 17.5 kbar and 852–858 ℃, constrained by plagioclase and clinopyroxene inclusions in garnet. The late stage of high pressure granulite assemblages(garnet+clinopyroxene+amphibole+plagioclase+rutile+quartz+liquid) records an isothermal decompression process with the pressure successively declining from 17.5 to 14.7 kbar and to 11.3 kbar at 858 ℃;(3) the later medium pressure granulite facies assemblage(garnet+ orthopyroxene+clinopyroxene+amphibole+plagioclase+ilmenite+liquid+quartz) indicates a drop in pressure and rise in temperature at P-T conditions of 7.6–7.7 kbar and 878–883 ℃;(4) retrogressive amphibolite facies stage, which is represented by amphibole+plagioclase kelyphitic rims around garnet, formed under conditions of <5 kbar and <650 ℃. The preservation of medium pressure granulite facies assemblage and the garnet composition feature constrain a following isobaric cooling path during late exhumation. This process suggests a clockwise P-T path and indicates that the granulitized eclogites record a high grade 'Barrovian' metamorphic overprint at the middle-lower crust during exhumation. The present data show that the Luliangshan terrane is a 'hot' HP-UHP terrane.Guisheng Zhou Jianxin Zhang Yunshuai Li Zenglong Lu Xiaohong Mao Xia Teng 2019Journal of Earth Science2019,30,3:4
3Foxtail millet supplementation improves glucose metabolism and gut microbiota in rats with high-fat diet/streptozotocin-induced diabetes显示文摘Foxtail millet(FM)whole grain has received special attention in recent years.To confirm the hypoglycemic effects of FM,we investigated the effects of FM supplementation on glucose metabolism and gut microbiota in rats with high-fat diet/streptozotocin(HFD/STZ)-induced diabetes.Specifically,we fully assessed the blood biochemical profiles,pancreatic histopathology,insulin-glucagon immunofluorescence,short-chain fatty acids,and gut microbiota composition of rats with HFD/STZ-induced diabetes before and after FM supplementation.Results showed that both 30% and 48% FM supplementation significantly decreased concentrations of fasting blood glucose,60-min blood glucose,and blood triglycerides(P<0.05);additionally,48% FM supplementation significantly improved blood glucose tolerance and insulin resistance(P<0.05).However,FM supplementation could not effectively repair damage to β-cells over a short period of time.In addition,4 weeks of 48% FM supplementation siginificantly increased the relative abundance of Bifidobacterium and concentration of butyrate,suggesting that the hypoglycemic effects of FM supplementation might be partially mediated by gut microbiota.Collectively,we found a dose-dependent relationship between FM supplementation and improvement of blood glucose metabolism,but did not find a synergistic effect between FM supplementation and metformin(Met)treatment.Our findings provide further support that consuming more whole-grain FM might be beneficial to individuals suffering from type 2 diabetes.Xin Ren Linxuan Wang Zenglong Chen Min Zhang Dianzhi Hou Yong Xue Xianmin Diao Ruihai Liu Qun Shen 2022Food Science and Human Wellness2022,11,1:3
4Enantioseparation and Determination of the Chiral Fungicide Furametpyr Enantiomers in Rice, Soil, and Water by High‐Performance Liquid Chromatography显示文摘Fengshou Dong Xiu Chen Jun Xu Xingang Liu Zenglong Chen Yuanbo Li Hongjun Zhang Yongquan Zheng 2013Chirality2013,,12:2
5Multiattribute and Single-Attribute Utility Functions for the Health Utilities Index Mark 3 System显示文摘David Feeny William Furlong George W. Torrance Charles H. Goldsmith Zenglong Zhu Sonja Depauw Margaret Denton Michael Boyle 2002Medical Care2002,,2:1
6Chinese Journal of organic chemistry显示文摘HUI MENGYAN YU SUJING ZENGLONG MEIETAL 1997J Org Chem1997,17,:1
7Electrolyte Strategies Toward Optimizing Zn Anode for Zinc-Ion Batteries显示文摘Zinc-ion batteries(ZIBs)with low cost and high safety have become potential candidates for large-scale energy storage.However,the knotty Zn anode issues such as dendritic growth,hydrogen evolution reaction(HER)and corrosion and passivation are still unavoidable,which greatly limits the wide applications of ZIBs.The states and additives of electrolytes are closely related to these problems.However,there is a lack of systematic understanding and discussion about the intrinsic connection between the states and additives of electrolyte and Zn anode issues.In this review,the basic principles of dendritic growth,HER and corrosion and passivation are fi rstly introduced,and then,electrolyte optimization strategies with the corresponding electrochemical properties are systematically summarized.In particular,the action mechanism of electrolyte additives and the electrolyte states for Zn anode optimization is analyzed in detail.Finally,some unique views on the improvement of electrolyte for Zn anode optimization are put forward,which is expected to provide a certain professional reference for designing high-performance ZIBs.Zenglong Xu Huiyan Xu Jinfeng Sun Jieqiang Wang Degang Zhao Bingqiang Cao Xiutong Wang Shuhua Yang 2023Transactions of Tianjin University2023,29,6:0
8Private Placement,Employee Ownership Plan and Mixed Ownership Reform--A Case Study of Wuliangye Listed Company显示文摘The reform core of state-owned enterprises is to develop mixed-ownership’s economy effectively,therefore there are so many large-and medium-sized state-owned enterprises using a variety of resources,adopting various ways to realize mixed-ownership reforms,enriching the theories of mixed-ownership reform,and creating a large number of practical samples.Wuliangye Company,as a very famous making liquor company in China,has issued a large of new stocks to excellent dealers,administrative staffs,and outstanding employees,so that the company can draw into massive private capital in 2016,so Wuliangye Company have made the first step about mixed-ownership reform among Chinese state-owned enterprises.Through comparing the quantity of monetary capital and asset-liability ratio of Wuliangye Company before and after directional issuing new stocks,the distrust about only adding money and welfare tool for relative benefit people can be eliminated.Moreover,the affection of directional issuing new stocks can promote Wuliangye Company dealers and employees to hold shareholdings,and optimize ownership structure.Wuliangye Company has got the exploration for optimizing equity structure to solid foundation for speeding up stated-owned enterprises reform paces,also providing some useful experiences of other mixed-ownership reform,and the ways and patterns are worthy of learning and studying.LI Jiaojiao QU Zenglong 2018Journal of Modern Accounting and Auditing2018,14,11:0
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