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TRANSFORMATION FROM ICOSAHEDRAL PHASE TO BODY CENTER CUBIC PHASE IN CUT DESCRIPTION

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Chinese Physics Letters 1989年第10期6卷 465-468页

作者： li fanghua PAN Guangzhao CHENG Yifan Institute of Physics Academia SinicaBeijing COAST(World Laboratory) P.O.Box 8730Beijing

The geometrical relation between quasiperiodic and periodic lattices is derived in both real and reciprocal spaces by means of the cut *** relation between icosahedral phase and the corresponding body center cubic pha... 详细信息

关键词： cubic reciprocal phase

Characteristics of particle size distributions for the collapsed riverbank along the desert reach of the upper Yellow River

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International Journal of Sediment Research 2016年第4期31卷 291-298页

作者： Anping Shu fanghua li Haifei liu Guosheng Duan Xing Zhou School of Environment Key Laboratory of Water and Sediment Sciences of Ministry of EducationBeijing Normal University Key Laboratory of Water and Sediment Sciences of Ministry of Education Beijing Normal University River Authority of Chaoyang District School of Environment Beijing Normal University

As a result of the interaction between hydrodynamics and the effects of gravity,riverbank collapse is a common occurrence in the desert reach of the upper Yellow River(also called as Ningxia-Mongolia Inner reach),of which the riverbank may be divided into three types such as sandy riverbank in the widevalley desert reach,silt-deposition riverbank on the fluvial plain and silt-sandy *** characteristics of both typical riverbank collapse and the particle size distributions(PSDs) for collapsed riverbanks of sandy,silt-deposition,and silt-sandy types were determined from analysis of data obtained from the field *** was found that particles from the silt-deposition riverbank had the smallest median size and those from the sandy riverbank the largest,with those from the silt-sandy riverbank being intermediate in *** PSDs of the sandy and silt-deposition riverbanks exhibited double-peaked and single-peaked structures,respectively,while those of the silt-sandy riverbank exhibited multiple ***,the corresponding to three kinds of riverbank collapse mechanisms were revealed,These results are significant with regard both to the understanding of river dynamics and to the planning of river harnessing projects.

关键词： Particle size distribution Desert reach Riverbank collapse Yellow River

Changes in the Economic Structure and Trends in China’s Future Energy Demands

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Social Sciences in China 2021年第3期42卷 116-137页

作者： Zheng Xinye Wu Shimei li fanghua School of Applied Economics Renmin University of China School of Economics&Trade Hunan University Business School University of New South WalesAustralia

The scientific evaluation of trends in China's future energy demands is highly *** provincial-level panel data from 1995 to 2015,we studied the relationships between the economic aggregate,the development of energy-intensive industries and energy demand from the perspective of changes in the proportion of energy-intensive industries in the national *** find that economic aggregate affects energy demand through energy-intensive industries and that changes in the economic structure are the key factor for change in energy *** means that China's future energy demand will be much lower than that contained in forecasts that did not consider this *** promoting green-tech development and strengthening the regulation of energy-extensive industries will be one of the key options for realizing China's objective of controlling total energy consumption.

关键词： energy demand economic aggregate energy-intensive industries structural adjustment

Recent advances in MXenes-based glucose biosensors

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中国化学快报:英文版 2023年第10期34卷 2-11页

作者： Shunyao Tian Meng Wang Paolo Fornasiero Xiaoyu Yang Seeram Ramakrishna Shih-Hsin Ho fanghua li State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China Department of Chemical and Pharmaceutical Sciences University of TriesteVia L.Giorgieri 1Trieste 34127Italy Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali(INSTM) Unit of Triestevia L.Giorgieri 1Trieste 34127Italy School of Chemical and Environmental Engineering China University of Mining and TechnologyBeijing 100083China Center for Nanotechnology and Sustainability Department of Mechanical EngineeringNational University of SingaporeSingapore 119077Singapore

It is established that monitoring blood glucose on a daily basis is one of the most effective solutions to prevent and treat ***,developing a glucose sensing platform with outstanding sensing performance occupies an indispensable position for the early diagnosis and risk assessment of ***,biosensor has been deemed as a promising apparatus to acquire the signals for glucose monitoring based on 2D ***,it is unsatisfied to deploy some materials widely as a result of some inherent *** nanotubes have comparatively high ***_(2) with unfavourable biocompatibility are still arduously implemented on being ***,MXene,a brand-new and rapidly developing two-dimensional material,exhibits marvellous application potential in the domain of ***,it has exerted tremendous attention from diverse scientific fields owning to its remarkable properties,such as excellent hydrophilicity,metal-like conductivity,abundant surface functional groups,unique layered structure,large specific surface area and remarkable *** review mainly focuses on the main synthetic route of MXenes,as well as the recent advancements of biosensors involving MXenes as an electrode modifier for glucose *** addition,the promising prospects and challenges of glucose sensing technology based on MXenes are also discussed.

关键词： MXenes Biosensor Mechanism Blood glucose Glucose detection

Strategic Interaction in Spending on Environmental Protection:Spatial Evidence from Chinese Cities

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China & World Economy 2012年第5期20卷 103-120页

作者： Huihui Deng Xinye Zheng Nan Huang fanghua li Institute of International Economy University of International Business and Economics School of Economics Renmin University of China Department of Economics University of California

In China, the responsibilitY of protecting the environment lies largely with local governments. Within the framework of spatial econometrics, we investigate empirically the consequence of such an institutional setting. Using city-level data for China, the present study finds that city governments behave strategically in making spending decisions regarding environmental protection. This paper finds that a city government appears to cut its own spending as a response to the rise in environmental protection spending by its neighbors. Hence, environmental protection tends to be underprovided. As a result, we suggest that centralizing the environmental protection responsibility to a higher level of government would be beneficial in terms of controlling pollution in China.

关键词： environmental protection spatial econometrics strategic interaction

Some Thoughts about the Construction of Individualized College English Teaching Mode

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Journal of Educational Theory and Management 2022年第1期6卷 1-5页

作者： fanghua li School of Yunnan Minzu University KunmingYunnan650504China

Individualized college English teaching is an important practice for colleges and universities to carry out college English teaching *** from the analysis of the connotation of individualized college English teaching,this paper summarizes the significant characteristics of individualized college English teaching,and puts forward the idea of constructing an individualized college English teaching mode,in the hope that provides some reference for the comprehensive implementation of the current college English teaching reform.

关键词： College English teaching Individualized teaching Constructive mode

Electron Crystallography Study on the Structure Determination of Minute Crystals

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Science Foundation in China 2007年第1期15卷 24-28页

作者： li fanghua Institute of physics Chinese Academy of Sciences Beijing 100080 China

Introduction In the paper the research project ＂Electron crys- tallography study on the structure determination of minute crystals＂ is briefly introduced. （1）Historical background and purpose Here minute crystals ... 详细信息

关键词： electron crystallography crystal structure electron diffraction high-resolution electronmicroscopy direct method maximum entropy

腹腔化疗联合静脉化疗对卵巢癌患者预后影响的meta分析

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现代医药卫生 2024年第8期40卷 1317-1322页

作者：赵飞飞郭迎雪张婷婷孙东斌李方华胜利油田中心医院肿瘤科山东东营257000

目的系统评价腹腔化疗(IP)联合静脉化疗(IV)对卵巢癌患者预后的影响。方法检索PubMed、EMBASE、Cochrane library、中国知网,检索时间为建库至2023年1月1日,收集关于采用IP、IV治疗卵巢癌的随机对照临床试验,其中研究组采用IP联合IV方式... 详细信息

目的系统评价腹腔化疗(IP)联合静脉化疗(IV)对卵巢癌患者预后的影响。方法检索PubMed、EMBASE、Cochrane library、中国知网,检索时间为建库至2023年1月1日,收集关于采用IP、IV治疗卵巢癌的随机对照临床试验,其中研究组采用IP联合IV方式,对照组采用单纯IV方式,分析2组无进展生存期(PFS)、总生存期(OS)及不良反应发生率。结果共纳入7项研究,涉及4057例患者。meta分析结果显示,研究组PFS显著长于对照组,差异有统计学意义(HR=0.86,95%CI:0.77~0.95,P=0.004)。亚组分析结果显示,2组PFS比较,差异无统计学意义(HR=0.85,95%CI:0.68~1.05,P=0.12)。研究组OS长于对照组,差异有统计学意义(HR=0.89,95%CI:0.79~1.00,P=0.04)。研究组不良反应(≥3级)发生率低于对照组,差异有统计学意义(HR=1.22,95%CI:1.09~1.37,P=0.0008)。亚组分析结果显示,2组胃肠道不良反应、感染和血栓发生率比较,差异有统计学意义(P0.05)。结论IP联合IV可以延长卵巢癌患者生存期,延缓复发时间,但需警惕重度不良反应的发生。

关键词：卵巢癌腹腔化疗静脉化疗不良反应

北京市永定河流域水工程调度实践与思考——以海河“23·7”流域性特大洪水应对为例

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中国防汛抗旱 2024年第1期34卷 64-67,77页

作者：李芳华潘兴瑶宋佳杰陈建刚周星北京市水务应急中心北京100038 北京市水科学技术研究院北京100048

2023年7—8月,受2305号台风“杜苏芮”北上和西北太平洋副热带高压异常偏北影响,海河流域发生“23·7”流域性特大洪水。北京市永定河段首次启用大宁水库、滞洪水库分蓄洪水。围绕本次北京市永定河流域水工程调度实践,简述洪水预报与调... 详细信息

2023年7—8月,受2305号台风“杜苏芮”北上和西北太平洋副热带高压异常偏北影响,海河流域发生“23·7”流域性特大洪水。北京市永定河段首次启用大宁水库、滞洪水库分蓄洪水。围绕本次北京市永定河流域水工程调度实践,简述洪水预报与调度策略,梳理斋堂水库、三家店拦河闸、卢沟桥枢纽调度过程,总结实施预报调度、精细调度、流域统一调度等经验,从精准预报调度技术、突发状况应急处置、智能化调度能力提升等方面提出对策建议。

关键词：海河“23·7”流域性特大洪水水工程调度永定河北京市