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鄱阳湖地区湿地保护现状及其主要影响因素

东北林业大学学报 2025年第2期53卷 122-126页

作者：邱万保赵英杰新疆政法学院图木舒克832003 东北林业大学

在鄱阳湖区域,选取鄱阳湖国家级自然保护区、鄱阳湖南矶湿地国家级自然保护区、都昌候鸟省级自然保护区、东鄱阳湖国家湿地公园、都昌北鄱阳湖湿省级地公园5个典型湿地保护地为研究地;采用问卷调查方法,选择研究地的管理人员、技术人员... 详细信息

在鄱阳湖区域,选取鄱阳湖国家级自然保护区、鄱阳湖南矶湿地国家级自然保护区、都昌候鸟省级自然保护区、东鄱阳湖国家湿地公园、都昌北鄱阳湖湿省级地公园5个典型湿地保护地为研究地;采用问卷调查方法,选择研究地的管理人员、技术人员、野外工作人员、其他工作人员,调查研究地的资源保护与破坏现状、湿地保护地存在的问题、保护地存在问题的成因、对现实问题的解决方式及建议,问卷有效率93.64%。依据调查数据,分析鄱阳湖地区湿地保护现状及其主要影响因素。调查结果表明:①鄱阳湖湿地保护现状较为理想,湿地资源得到了合理的保护和利用。在受访者中,83.50%工作人员认为湿地水鸟种类增加或维持不变、74.76%工作人员认为湿地水鸟数量增加或维持不变、73.78%工作人员认为湿地水鸟已经达到或基本达到最适数量、63.11%工作人员认为湿地水鸟繁殖能力增加或不变。②各保护地的湿地保护现状差异明显,在受访者中,62.38%工作人员认为鄱阳湖地区湿地保护过程中存在不利影响,主要集中在生态旅游、水量减少、湿地污染、湿地占用等方面。80.58%工作人员认为湿地生态旅游存在负面影响,其中63.10%工作人员认为生态旅游存在严重影响;33.01%工作人员认为湿地保护地的不利基础设施建设存在严重影响或一般影响;82.52%工作人员认为湿地水量减少是湿地保护面临的问题之一;53.40%工作人员认为湿地污染是湿地保护面临的问题之一。③鄱阳湖地区湿地破坏的成因包括鄱阳湖地区湿地保护法规不完善、湿地保护的政府间联动机制不健全、湿地工作人员构成不合理。④改进措施,完善地方湿地立法、政府间部门联动机制、地区人才培养机制及相关政策。

关键词：鄱阳湖湿地保护自然保护区

A direct-variance-analysis method for generalized stochastic eigenvalue problem based on matrix perturbation theory

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Science China(Technological Sciences) 2014年第6期57卷 1238-1248页

作者： qiu ZhiPing qiu HeChen Institute of Solid Mechanics Beihang University

It has been extensively recognized that the engineering structures are becoming increasingly precise and complex,which makes the requirements of design and analysis more and more *** the uncertainty effects are indispensable during the process of product ***,iterative calculations,which are usually unaffordable in calculative efforts,are unavoidable if we want to achieve the best *** uncertainty effects into consideration,matrix perturbation methodpermits quick sensitivity analysis and structural dynamic re-analysis,it can also overcome the difficulties in computational *** to the situations above,matrix perturbation method has been investigated by researchers worldwide ***,in the existing matrix perturbation methods,correlation coefficient matrix of random structural parameters,which is barely achievable in engineering practice,has to be given or to be assumed during the computational *** has become the bottleneck of application for matrix perturbation *** this paper,we aim to develop an executable approach,which contributes to the application of matrix perturbation *** the present research,the first-order perturbation of structural vibration eigenvalues and eigenvectors is derived on the basis of the matrix perturbation theory when structural parameters such as stiffness and mass have *** the first-order perturbation of structural vibration eigenvalues and eigenvectors with the probability theory,the variance of structural random eigenvalue is derived from the perturbation of stiffness matrix,the perturbation of mass matrix and the eigenvector of baseline-structure *** the Direct-VarianceAnalysis(DVA)method is developed to assess the variation range of the structural random eigenvalues without correlation coefficient matrix being *** feasibility of the DVA method is verified with two numerical examples(one is trusssystem and the other is wing struct

关键词： matrix perturbation theory generalized stochastic eigenvalue problem structure with random parameter direct variance analysis

A Rigidity Result of Spacelike Self-Shrinkers in Pseudo-Euclidean Spaces

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Chinese Annals of Mathematics,Series B 2021年第2期42卷 291-296页

作者： Hongbing qiu School of Mathematics and Statistics Wuhan UniversityWuhan 430072China Hubei Key Laboratory of Computational Science Wuhan UniversityWuhan 430072China

In this paper, the author proves that the spacelike self-shrinker which is closed with respect to the Euclidean topology must be flat under a growth condition on the mean curvature by using the Omori-Yau maximum princ... 详细信息

关键词： Self-Shrinker Rigidity Omori-Yau maximum principle Pseudo-distance

Science communication in China: a critical component of the global science powerhouse

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National Science Review 2020年第4期7卷 824-829页

作者： Jane qiu Writes for NSR from Beijing

China has attached a great significance to bringing science to the public—known as kepu(, ‘science popularization’) or kexue chuanbo(, ‘science dissemination’)—in recent years, partly in response to its unprecedented push for innovation in science and technology. In 2018, it spent 16 billion yuan(US$2.3 billion) on such endeavours, nearly 80% of which was government funding, according to a survey conducted by the Ministry of Science and Technology. With one science-education venue for every million people, approximately 76 million visits

关键词： a critical component of the global science powerhouse Science communication in China

Hierarchical self-assembly: when sugar meets amino acid

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Science China Chemistry 2016年第12期59卷 1621-1622页

作者： Huibin qiu School of Physical Science and Technology ShanghaiTech University

Life is an extremely delicate self-assembly system, where a rich array of small molecules, macromolecules and other entities associate and organize in an intrinsically diverse and precise manner. During the past few decades, scientists have devoted enormous efforts to fabricate functional materials, including the interesting self-assembled molecular devices that recently crowned with the 2016 Nobel Chemistry Prize, by self-assembly of natural and synthetic molecules/mac- romolecules. Nevertheless, it still remains an incredibly big challenge to approach the elegance of life self-assembly, predominantly as a consequence of limited diversity and accuracy of chemistry, structure, and supramolecular asso- ciation of the building blocks.

关键词： when sugar meets amino acid Figure Hierarchical self-assembly

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中国健康成年人身体活动能量消耗参考值

中国运动医学杂志 2022年第5期41卷 335-349页

作者：邱俊强杨俊超路明月陈雨扬杨延平曹维孟锟陈演张君许春艳衣龙燕郭娴汪洋严翊李翰君刘晓蕾卓勤赵文华冯连世 Barbara E.Ainsworth 北京体育大学运动人体科学学院北京100084 运动营养北京市高等学校工程研究中心北京体育大学中国运动与健康研究院北京体育大学中国武术学院中国疾病预防控制中心营养与健康所国家体育总局社会体育指导中心上海体育学院体育科学研究院美国亚利桑那州立大学营养与健康促进学院菲尼克斯AZ 85003

目的:编制中国健康成年人(18~64岁)身体活动汇编(compilation of physical activities,CPA),对身体活动(physical activity,PA)进行分类并提供能量消耗参考数值。方法:计算机检索PubMed,EMbase,Scopus,Ebsco,Web of Science,WANFANG DATA和CNKI数据库,以及国家科技报告服务系统、国家人口与健康科学数据共享平台和公共卫生科学数据中心等,搜集与中国健康人群PA能量消耗相关资料,检索时限均从建库至2022年1月31日,由2位评价员独立筛选、提取、分类和汇总资料。结果:共汇编13类、241种身体活动,提供了具体PA的详细描述和代谢当量值。结论:本研究创编了中国第一版18~64岁健康成年人身体活动汇编,为经常进行体育锻炼人群、研究人员、教育工作者、健身专业人员以及卫生或商业部门提供了宝贵的资源,未来可在中国版CPA基础上针对不同年龄段开展多种PA能量消耗的测量。

关键词：身体活动中国健康成年人能量消耗代谢当量

黑磷/黑砷异质结纳米器件热电性质应力调控研究

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原子与分子物理学报 2025年第1期42卷 69-74页

作者：戎杙邱乙峰张蓓新疆大学物理科学与技术学院乌鲁木齐830046

探索新型高性能低维热电纳米材料已成为国家重大发展策略.论文采用密度泛函理论结合非平衡态格林函数方法研究了由黑磷、黑砷纳米带构建异质结构在2%、4%、6%和8%四种拉伸应变作用下热电性能调控机理.研究结果表明,6%拉伸应变较其他情形... 详细信息

探索新型高性能低维热电纳米材料已成为国家重大发展策略.论文采用密度泛函理论结合非平衡态格林函数方法研究了由黑磷、黑砷纳米带构建异质结构在2%、4%、6%和8%四种拉伸应变作用下热电性能调控机理.研究结果表明,6%拉伸应变较其他情形,能够更有效抑制声子输运行为;与此同时,拉伸应变对于器件的电子输运的调控效果并不明显.在费米能附近,黑磷/黑砷异质结纳米器件在6%拉伸应变调控下热电优值达到最大值2.31.

关键词：黑磷黑砷异质结应力热电性质

Some recent advances in 3D crack and contact analysis of elastic solids with transverse isotropy and multifield coupling

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Acta Mechanica Sinica 2015年第5期31卷 601-626页

作者： Wei-qiu Chen Department of Engineering Mechanics Zhejiang University

Significant progress has been made in mixed boundary-value problems associated with three-dimensional（3D） crack and contact analyses of advanced materials featuring more complexities compared to the conventional isotropic elastic *** include material anisotropy and multifield coupling,two typical characteristics of most current multifunctional *** this paper we try to present a state-of-the-art description of 3D exact/analytical solutions derived for crack and contact problems of elastic solids with both transverse isotropy and multifield coupling in the latest decade by the potential theory method in the spirit of *** ingenious breakthrough brings new vigor and vitality to the old research subject of classical potential *** are particularly interested in crack and contact problems with certain nonlinear *** is also placed on the coupling between the temperature field（or the like） and other physical fields（e.g.,elastic,electric,and magnetic fields）.We further highlight the practical significance of 3D contact solutions,in particular in applications related to modern scanning probe microscopes.

关键词： Crack Contact Mixed boundary-value problem Transverse isotropy Multifield coupling Potential theory Exact solution Scanning probe microscope

Carbon materials toward efficient potassium storage:Rational design,performance evaluation and potassium storage mechanism

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Green Energy & Environment 2023年第1期8卷 115-140页

作者： Daping qiu Yanglong Hou Beijing Key Laboratory for Magnetoelectric Materials and Devices Beijing Innovation Centre for Engineering Science and Advanced TechnologySchool of Materials Science and EngineeringPeking UniversityBeijing100871China

Potassium-ion batteries(PIBs)are potential“Beyond Li-ion Batteries”candidates for their resource advantage and low standard electrode *** date,the research on PIBs is in its early stages,the most urgent task is to develop high-performance electrode materials and reveal their potassium storage *** PIBs anode materials,carbon with tunable microstructure,excellent electrochemical activity,nontoxicity and low price is considered as one of the most promising anode materials for *** some breakthrough works have emerged,the overall electrochemical performance of the reported carbon anode is still far away from practical ***,we carry out a comprehensive overview of PIBs carbon anode in terms of three aspects of rational design of structure,performance evaluation criteria and characterization of potassium storage ***,the regulation mechanism of key structural features of carbon anode on its potassium storage performance and the representative structural regulation strategies are ***,in view of the undefined performance evaluation criteria of PIBs carbon anode,a reference principle for evaluating the potassium storage performance of carbon anode is ***,the advanced characterization techniques for the potassium storage mechanism of carbon anode are *** review aims to provide guidance for the development of practical PIBs anode.

关键词： Potassium-ion batteries Carbon anode Structural engineering Performance evaluation Potassium storage mechanism