Results 11 to 20 of about 67,539 (163)
Rare Metals, EarlyView.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
Wildlife Letters, EarlyView.We examined changes in perceived risks associated with chronic wasting disease (CWD) and perceived trust in wildlife agencies over time across 10 studies in eight states. Results indicated that perceived risks to both deer and humans declined the longer the disease had been in a state. Results also indicated that agency trust evaluations were positive,
Jerry J. Vaske, Craig A. Miller
wiley +1 more source
Analysis and Design of Consultancy System of Solicit Credit Consumer Evaluation [PDF]
, 2015 在网络技术不断发展的今天，设计开发一个企业征信消费者评价咨询系统，将广大消费者对企业的信用评价纳入征信内容供全社会共享，通过消费者评价企业信用来约束企业失信，对于商业银行来说极具现实意义和研究价值。 本文论述了如何构建一个Web应用系统：企业征信消费者评价咨询系统。该系统是在共享我国信用体系建设中现有的各种类型数据库资源的基础上，设计的B/S结构系统。主要用到了XML这一关键技术，还有JSP技术等重要技术，而且运用了基于J2EE的多层体系结构以及SQLServer2005数据库 ...
黄储
core
Evaluating past and future contributions of conservation programs to species recovery
Conservation Biology, EarlyView.Abstract Impact evaluation of conservation actions is a crucial step in global efforts to curb the biodiversity crisis. Through robust impact evaluation, practitioners can assess the effectiveness of conservation strategies and optimize the use of limited resources.
Rebeca E. Young +10 more
wiley +1 more source
Dianci bileiqi, 2021 针对专家打分法确定指标因子权重具有较大主观性和最大隶属度原则确定评价结果存在低效和失效情况,提出基于区间直觉模糊集的雷电防护能力评价方法。依据相关国家标准和技术规范,从接闪装置、引下线、接地装置、等电位连接、电涌保护器（SPD）、屏蔽与布线六个方面构建了17个指标因子的雷电防护能力评价指标体系,并建立了基于检查检测结果确定指标因子评价语、基于区间直觉模糊熵确定指标因子权重、基于区间直觉模糊集相似度确定评价结果的雷电防护能力评价模型。以某油气集输站库为案例进行实证分析,结果表明,评价结果与实际情况较吻合 ...
于忠江 +4 more
doaj
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
core
How much biotic nativeness matters across human demographic groups
Conservation Biology, EarlyView.Abstract Many central concepts of conservation biology—such as nativeness—are structured by ecological and social factors. However, the social consequences of using these concepts to make conservation decisions remain inadequately understood. Some researchers argue that nativeness, rather than acting as an objective proxy for important ecological ...
Harold N. Eyster, Rachelle K. Gould
wiley +1 more source
Shuitu Baochi Xuebao, 2002 将土地生态系统的级别、评价土地生态系统质量优劣的指标及其特征值作为物元,对评价标准及实测数据进行归一化后,得到模型的经典域、节域、权系数及关联度,进而建立了土地生态系统定量评价的模型,并将该模型应用到石家庄市土地生态系统的评价中,与模糊评价法有较好的一致性,评价结果符合客观实际。
门宝辉 梁川
doaj +2 more sources
Differences in characteristics between naturalized threatened plants and other threatened plants
Conservation Biology, EarlyView.Abstract Many non‐native plant species introduced by humans have become naturalized. At the same time many species are threatened in their native range. However, the number of plant species threatened in their native range that are naturalized elsewhere remains unknown.
Weihan Zhao +10 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2017 我国历史文化名城保护规划实施评价的内容体系和标准体系具有双重复杂性，在实际工程评价方法上主要依赖经验判断，在评价标准上仍缺乏客观性度量及居民反馈测度，且缺乏具有可操作性的模型建构方法.需要采用合理的数理统计方法对多准则决策法进行优化，建立一套全面而简明的规划实施评价的内容体系和指标体系，为提高名城评价体系的系统性和可操作性提供思路.为此，首先建立了历史文化名城保护规划实施评价的研究思路和框架，而后基于模糊德尔菲法(FDM)分别优化了评价内容体系和评价标准体系 ...
DONGWenli(董文丽) +2 more
doaj +1 more source