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On the Origin of Migmatites in Yunlu, Western Guangdong

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Acta Geologica Sinica(English Edition) 1995年第1期69卷 41-52,118页

作者： Chen Bin and huang fusheng Department of Geology, Peking University, Beijing Jiang M inxi Department of Geology Peking University Beijing

Partially migmatized rocks, banded migmatites, augen-banded migmatites and gneissic migmatites are developed successively from Xindong to Yunlu, Gaozhou, Guangdong Province in the Yunkai Caledonian orogenic belt at the border between Guangdong and Guangxi. Mass-balance calculations, statistical analysis of the textural relations and mineralogical and geochemical studies of the migmatites and the study of the metamorphlc setting of the Yunlu area indicate that the migmatites in the study area were primarily formed by anatexis without remarkable introduction of foreign components such as K, Na and Si and removal of Ca, Fe, Mg, etc.

关键词： migmatite anatexis leucosome Yunlu

Global convergence in terrestrial gross primary production response to atmospheric vapor pressure deficit

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Science China(Life Sciences) 2024年第9期67卷 2016-2025页

作者： Chao huang Jingfeng huang Jingfeng Xiao Xing Li Hong SHe Yu Liang fusheng Chen Hanqin Tian Key Laboratory of National Forestry and Grassland Administration on Forest Ecosystem Protection and Restoration of Poyang Lake Watershed College of ForestryJiangxi Agricultural UniversityNanchang 330045China CAS Key Laboratory of Forest Ecology and Management Institute of Applied EcologyChinese Academy of SciencesShenyang 110016China Institute of Applied Remote Sensing&Information Technology College of Environmental and Resource SciencesZhejiang UniversityHangzhou 310058China Key Laboratory of Agricultural Remote Sensing and Information Systems Zhejiang ProvinceZhejiang UniversityHangzhou 310058China Earth Systems Research Center Institute for the Study of EarthOceansand SpaceUniversity of New HampshireDurham NH 03824USA Research Institute of Agriculture and Life Sciences Seoul National UniversitySeoul 08826South Korea School of Natural Resources University of Missouri203 ABNR BuildingColumbiaMO 65211USA Schiller Institute for Integrated Science and Society Department of Earth and Environmental SciencesBoston CollegeChestnut HillMA 02467USA

Atmospheric vapor pressure deficit(VPD)increases with climate warming and may limit plant ***,gross primary production(GPP)responses to VPD remain a mystery,offering a significant source of uncertainty in the estimation of global terrestrial ecosystems carbon *** this study,in-situ measurements,satellite-derived data,and Earth System Models(ESMs)simulations were analysed to show that the GPP of most ecosystems has a similar threshold in response to VPD:first increasing and then *** VPD exceeds these thresholds,atmospheric drought stress reduces soil moisture and stomatal conductance,thereby decreasing the productivity of terrestrial *** ESMs underscore CO_(2) fertilization effects but predict significant GPP decline in low-latitude ecosystems when VPD exceeds the *** results emphasize the impacts of climate warming on VPD and propose limitations to future ecosystems productivity caused by increased atmospheric water *** VPD,soil moisture,and canopy conductance interactions into ESMs enhances the prediction of terrestrial ecosystem responses to climate change.

关键词： atmospheric water demands soil moisture stomatal conductance photosynthesis climate warming

A perspective on the key factors of safety for rechargeable magnesium batteries

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Journal of Energy Chemistry 2024年第7期94卷 656-676页

作者： Shuangshuang Tan Jie Xu Rongrui Deng Qiannan Zhao Chaohe Xu Guangsheng huang Jingfeng Wang fusheng Pan National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China National Innovation Center for Industry-Education Integration of Energy Storage Technology College of Materials Science and EngineeringChongqing UniversityChongqing 400044China Chongqing Institute of New Energy Storage Materials and Equipment Chongqing 401135China

Rechargeable Mg batteries(RMBs)have become one of the best subsitutes for lithium-ion batteries due to the high volumetric capacity,abundant resources,and uniform plating behavior of Mg metal ***,the safety hazard induced by the formation of high-modulue Mg dendrites under a high current density(10 mA cm^(-1))was still revealed in recent *** has forced researchers to re-examine the safety of *** this review,the intrinsic safety factors of key components in RMBs,such as uneven plating,pitting and flammability of Mg anode,heat release and crystalline water decomposition of cathode,strong corrosion,low oxidition stability and flammability of electrolytes,and soforth,are systematacially *** origins,formation mechanisms,and possible safety hazards are deeply *** develop high-performance Mg anode,current strategies including designing artificial SEI,three-dimensional substrates,and Mg alloys are *** practical electrolytes,the configurations of boron-centered anions and simple Mg salts and the functionalized solvent with high boiling point and low flammability are suggested to comprehensively *** addition,the future study should more focus on the investigation on the thermal runaway and decomposition of cathode materials and *** review aims to provide fundamental insights into the relationship between electrochemistry and safety,further promoting the sustainable development of RMBs.

关键词： Rechargeable Mg batteries Battery safety Mg dendrites Electrolyte decomposition Intrinsic safety issues

Dual-Defect Engineering Strategy Enables High-Durability Rechargeable Magnesium-Metal Batteries

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Nano-Micro Letters 2024年第9期16卷 449-461页

作者： Fuyu Chen Bai‑Qing Zhao Kaifeng huang Xiu‑Fen Ma Hong‑Yi Li Xie Zhang Jiang Diao Jili Yue Guangsheng huang Jingfeng Wang fusheng Pan National Innovation Center for Lndustry‑Education Integration of Energy Storage Technology School of Materials Science and EngineeringChongqing UniversityChongqing 400044People’s Republic of China National Magnesium Alloy Material Engineering Technology Research Center Chongqing UniversityChongqing 400044People’s Republic of China Materials and Energy Division Beijing Computational Science Research CenterBeijing 100193People’s Republic of China School of Materials Science and Engineering Northwestern Polytechnical UniversityXi’an 710072People’s Republic of China National Key Laboratory of Advanced Casting Technologies Chongqing UniversityChongqing 400044People’s Republic of China

Rechargeable magnesium-metal batteries(RMMBs)are promising next-generation secondary batteries;however,their development is inhibited by the low capacity and short cycle lifespan of *** various strategies have been devised to enhance the Mg^(2+)migration kinetics and structural stability of cathodes,they fail to improve electronic conductivity,rendering the cathodes incompatible with magnesium-metal ***,we propose a dual-defect engineering strategy,namely,the incorporation of Mg^(2+)pre-intercalation defect(P-Mgd)and oxygen defect(Od),to simultaneously improve the Mg^(2+)migration kinetics,structural stability,and electronic conductivity of the cathodes of *** lamellar V_(2)O_(5)·nH_(2)O as a demo cathode material,we prepare a cathode comprising Mg_(0.07)V_(2)O_(5)·1.4H_(2)O nanobelts composited with reduced graphene oxide(MVOH/rGO)with P-Mgd and *** Od enlarges interlayer spacing,accelerates Mg^(2+)migration kinetics,and prevents structural collapse,while the P-Mgd stabilizes the lamellar structure and increases electronic ***,the MVOH/rGO cathode exhibits a high capacity of 197 mAh g^(−1),and the developed Mg foil//MVOH/rGO full cell demonstrates an incredible lifespan of 850 cycles at 0.1 A g^(−1),capable of powering a light-emitting *** proposed dual-defect engineering strategy provides new insights into developing high-durability,high-capacity cathodes,advancing the practical application of RMMBs,and other new secondary batteries.

关键词： Rechargeable magnesium-metal batteries Dual-defect engineering Vanadium-based cathode High durability Lamellar structure

Toll-like receptors,a double-edged sword in immunity to malaria

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Journal of Medical Colleges of PLA(China) 2009年第2期24卷 118-124页

作者： Chen Jide He Ying Xu Wenyue huang fusheng Department of Pathogenic Biology College of Basic Medical Sciences Third Military Medical University Chongqing 400038 China Department of Clinical Laboratory Chongqing Public Health Hospital Center Chongqing 400036 China

Toll-like receptors(TLRs) are a central component of innate immune system and play a major role as the initiator of the innate immune responses to defend against bacteria,viruses,parasite and other *** malaria infection,TLRs signaling pathways are initialed with the recognition of Plasmodium glycosylphosphatidylinositols(GPI) and hemozoin as pathogen-associated molecular patterns(PAMPs).And then,activation of TLRs signaling induces specific biological responses against malaria parasites ***,TLRs are also involved in malaria pathogenesis and enhancement of immune tolerance and evasion for malaria ***,malaria parasites regulate selectively TLRs expression on immune ***,these evidences indicated that TLRs have contrary roles on malaria *** the complicated roles of TLRs on malaria infection will contribute us to design more effective anti-malaria drugs or vaccines.

关键词： Toll-like receptors Innate immunity Malaria Plasmodium

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国际视野下的跨境远程教育质量保障探析

中国远程教育 2009年第5期 17-24页

作者：黄复生上海电视大学开放教育研究所

跨境远程教育是教育全球化背景下的重要形式,但跨境远程教育的独特属性使得跨境远程教育质量保障成为一个难点,这给包括我国在内的教育输入国带来了巨大挑战。本文分析了跨境远程教育的兴起、跨境远程教育质量保障的挑战及相关有代表性... 详细信息

跨境远程教育是教育全球化背景下的重要形式,但跨境远程教育的独特属性使得跨境远程教育质量保障成为一个难点,这给包括我国在内的教育输入国带来了巨大挑战。本文分析了跨境远程教育的兴起、跨境远程教育质量保障的挑战及相关有代表性的学术观点,并从教育输入国的角度分析了菲律宾、肯尼亚等国家和地区跨境远程教育质量保障的实践情况,进而提出了完善我国跨境远程教育质量保障的政策建议。

关键词：国际视野跨境远程教育质量保障

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基于学习者视角的远程学习服务质量概念模型

开放教育研究 2012年第2期18卷 99-106页

作者：黄复生复旦大学国际关系与公共事务学院上海200433 上海电视大学党政办上海200086

学习者理应成为教育服务质量评价的主体,但此类实证研究在我国远程教育领域并不多见。本文首先在分析国内外已有相关实证研究的基础上,提出了远程学习服务质量概念的假设模型;然后,基于对上海电大两所有代表性分校的580名远程学习者的... 详细信息

学习者理应成为教育服务质量评价的主体,但此类实证研究在我国远程教育领域并不多见。本文首先在分析国内外已有相关实证研究的基础上,提出了远程学习服务质量概念的假设模型;然后,基于对上海电大两所有代表性分校的580名远程学习者的问卷调查数据,通过SPSS的探索性因子分析、结构方程模型的验证性因子分析和高阶因子分析,不断修正和完善假设模型,获得了上海地区远程学习服务质量概念模型。研究表明,从学习者角度来看,远程学习服务质量主要由教学服务质量、管理服务质量、学习网站质量、学习支持服务质量、学习资源质量五大因子构成。本文的发现可以为远程教育质量保障研究更加关注学习服务质量研究提供基于学习者视角的基础性的理论依据,也可为办学机构重视学习服务满意感提供实践价值,同时也对政府评价远程教育、学习者选择教育服务具有重要的借鉴意义。

关键词：远程学习服务质量概念模型学习者实证研究

以学习促进发展:英联邦学习共同体的理念与实践

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外国教育研究 2014年第9期41卷 120-128页

作者：黄复生上海开放大学党委办公室行政办公室上海200086

英联邦学习共同体是国际远程教育领域唯一的政府间组织,其关注重点主要在教育、生活与健康两方面。该组织坚守以学习促进发展的理念,秉承促进开放学习/远程教育知识、资源和技术的开发与共享的宗旨,积极引领世界开放远程教育潮流,主要... 详细信息

英联邦学习共同体是国际远程教育领域唯一的政府间组织,其关注重点主要在教育、生活与健康两方面。该组织坚守以学习促进发展的理念,秉承促进开放学习/远程教育知识、资源和技术的开发与共享的宗旨,积极引领世界开放远程教育潮流,主要开展了开放教育资源运动、在线课程建设、开放远程教育质量保障以及农民终身学习计划等重大活动,在英联邦甚至全世界范围里产生了深远的影响,成为开放远程教育领域一流的国际组织。英联邦学习共同体以实践项目推动组织宗旨的不断实现、以开放的理念引领世界教育资源开放运动、以对质量的重视促进开放远程教育发展、以国际机构间平台的搭建开展各种合作等经验,值得推崇和借鉴。

关键词：英联邦学习共同体以学习促进发展开放远程教育政府间组织

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远程学习服务质量影响路径的实证研究

远程教育杂志 2011年第6期29卷 44-50页

作者：黄复生复旦大学国际关系与公共事务学院上海200433 上海电视大学上海200086

学习者是远程教育的中心。市场营销中的相关理论能对研究远程学习服务质量具有借鉴作用。3789份的大样本调查数据的结构方程模型的路径分析,首次在远程教育领域验证了"服务质量→服务价值→服务满意感→行为意向"的主要影响路径。远程... 详细信息

学习者是远程教育的中心。市场营销中的相关理论能对研究远程学习服务质量具有借鉴作用。3789份的大样本调查数据的结构方程模型的路径分析,首次在远程教育领域验证了"服务质量→服务价值→服务满意感→行为意向"的主要影响路径。远程学习者选择远程学习服务的心理机制和行为路径是:远程学习服务质量是通过服务价值、服务满意感来对学习者行为意向产生作用。这一发现为更好地服务远程学习者提供了理论基础,也为远程学习者自身教育服务消费能力建设提供借鉴作用。

关键词：远程学习服务质量影响路径实证研究