Results 21 to 30 of about 14,629 (157)
Engineering Geometric Active Sites in Cobalt Spinel Oxides for Energy and Environmental Catalysis
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Cobalt‐based spinel oxides (Co3O4 and derivatives) are among the most promising transition metal oxides for electrochemical energy conversion and environmental catalysis due to their abundant active sites, structural tunability, and robust redox flexibility.
Shenning Liu +6 more
wiley +1 more source
, 2017 极地在气候系统、全球资源和战略中具有重要意义，并且随着人类对它的开发，极地研究也日益成为地球与环境科学领域的核心和热点议题。基于Web of Science 数据库收录的2010 － 2016 年SCI文章，利用文献计量方法，结合国际政策和战略，分析了2010 － 2016 年极地研究的发展格局和变化趋势。结果表明: ( 1) 近年来国际极地研究论文年发文量总体呈持续增长态势，年均增幅为3． 6%。( 2)发达国家及高纬度国家是极地领域的主要研究力量，美国占据绝对优势。( 3) 在SCI ...
吴秀平 +4 more
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Integrative Conservation, Volume 5, Issue 1, Page 125-136, March 2026.We collated detections of the sun bear from new and previously published camera trap studies across its range. We then analysed these detections at two different spatial scales to assess the habitat associations and diel activity of this species. We found that the sun bear is tolerant to moderate habitat disturbances. ABSTRACT Degraded tropical forests,
Alexander Hendry +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Proton exchange membrane fuel cells (PEMFCs) require advanced bipolar plate coatings to enhance efficiency, durability, and commercialization potential. This review presents a systematic framework for evaluating and designing bipolar plate coatings, integrating material selection, performance metrics, deposition techniques, and future ...
Shijie Li +12 more
wiley +1 more source
Evaluation of Classroom Teaching：A Case Study of Y Higher Vocational College [PDF]
, 2016 本文从调查Y职业学院课堂教学质量评价的现状出发，着重分析了课堂教学质量评价在学生评价方面存在的问题。在研究相关文献与评价理论的基础上，结合专业特点与学生的评价能力及需求，对课堂教学质量评价指标进行了重新构建，并对比解析了新旧指标。然后，运用层次分析法重新确定了各项评价指标的权重，再用模糊综合评价法对教师的课堂教学质量实施评价。通过进一步分析评价结果及其成因，探寻教师的教学、学生的学习以及教学质量管理方面的不足。最后提出，提高Y职业学院课堂教学质量重在加强实践教学的效果。 本研究的价值 ...
李超
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Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 6, Page 706-715, December 2025.ABSTRACT Objective To evaluate the use of twin vs singleton growth charts for detecting small‐for‐gestational‐age (SGA) twins at risk of adverse neonatal outcomes. Methods MEDLINE, EMBASE, CINAHL, Cochrane and Scopus databases were searched electronically from inception to May 2024.
S. Sorrenti +9 more
wiley +1 more source
Shuitu Baochi Xuebao, 2003 讨论了半荒漠区沙漠化土地综合治理生态工程建设的资源、经济、生态环境和社会效益,在此分析的基础上应用综合评价方法对生态工程的这4种效益以及综合效益进行了定量化的综合评价,并建立灰色系统模型,预测了工程建设的延续效益,取得了满意的效果。
孙德祥 李少雄 等
doaj +2 more sources
Research on the Generation of Government Investment Projects under the "Multi-plan Coordination" in Xiamen [PDF]
, 2016 近年来，全国多省、市在建设领域大力推行“多规合一”，并在此背景上不同程度的进行政府投资项目审批制度改革，简化审批流程，提高政府对建设项目的监管水平。厦门市更是走在各地前列，基于“多规合一”业务协同平台，创新推出政府投资项目生成机制，对项目的前期策划、决策以及管理提出新的要求。 本文以厦门市政府投资项目生成为研究对象，分析与“多规合一”的关联，将建设项目全生命周期理论运用于政府投资项目管理，从监管角度，将政府投资项目全生命周期划分为生成阶段、审批阶段以及监督管理阶段 ...
郑荣群
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Integrative Conservation, Volume 4, Issue 3, Page 345-353, September 2025.Restoration of monoculture in protected and marginal areas can be organized into two phases (1) identification and prioritization of restoration sites based on remote sensing or field survey then assessing degradation level, and (2) implementation of appropriate restoration interventions.
Liang Song +9 more
wiley +1 more source
Dongfu Tobacco Warehouse Construction ProjectRiskManagement Research [PDF]
, 2016 本文简要概述了项目风险管理相关理论，以东孚烟叶仓储工程建设项目风险管理为研究对象，介绍了项目概况，分析了项目特点、风险识别原则并对项目的风险指标进行识别。主要围绕模糊层次综合分析法的原理和分析过程，结合东孚烟叶仓储工程建设项目已识别的风险因素，确定各层级的权重集，建立各评价指标量化的评价集，在风险分析的基础上对项目相关风险控制提出应对措施。为了能够改进模糊层次综合评价法，本文还引进三角模糊数和逼近理想解排序法，为风险管理决策提供更多的依据。实现对烟叶仓储工程建设项目的风险控制 ...
童辉
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