Results 61 to 70 of about 61,733 (199)
Dianci bileiqi, 1992 利用化学分析法、热谱分析法、X-射线衍射仪鉴定出电瓷干坯表面析晶物质为硫酸钙（CaSO4·2H20）.分析了产生析晶的原因,并用化学分析方法分析了各种粘土原料和自来水中可溶性盐的含量,为提高电瓷表面质量,加强工艺控制提供了依据.
何增健
doaj
Conservation Biology, EarlyView.Abstract In the western United States, conservation practitioners are increasingly working with private landowners to restore habitat for North American beavers (Castor canadensis) and to use nonlethal mitigation techniques when beavers damage crops and infrastructure.
Brian D. Erickson, Megan S. Jones
wiley +1 more source
Shiyou jixie, 2011 针对目前传统的钻井液气测录井存在脱气不定量和分析成分少的问题，开发了新型钻井液油气分离及在线分析系统。该系统脱气部分利用半透膜分离原理，能针对性地脱出烃类气体，设计制造的脱气器可直接插入钻井液中提取分析成分，并通过专门建立的试验环境，试验获取了脱气器的动态衰减特性和膜两侧体积分数关联系数；系统的分析部分采用三模块设计，重新规划了分析单元的流程，扩展了在线分析的组分范围，可在线分析钻井液中油气成分。新型钻井液油气分析系统可提升钻井液气测录井水平，提高油气评价准确性，有助于弱油气储层的发现 ...
张卫, 李三国
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Conservation Biology, EarlyView.Abstract Despite the crucial role of human impacts on biodiversity loss, many assessments of this loss focus on single metrics, such as species richness, and overlook the multidimensional effects of human activities. Because of its importance to ecosystem functioning, we investigated the functional diversity of medium‐ and large‐sized mammal ...
Xueyou Li +8 more
wiley +1 more source
Gaoya dianqi, 2019 层次分析法是一种进行定量和定性分析相结合的多目标决策分析方法,广泛应用于多特征量权重计算。文中对层次分析法进行改进,利用统计学的相关理论,把系统聚类分析方法和众数理论应用于层次分析法,结合专家所构造判断矩阵的一致性程度,通过加权平均算法得到指标的综合权重排序。改进的层次分析法不仅充分保留了原有判断矩阵的信息,同时全面考虑了专家个体判断结果的准确性和专家组综合意见。将改进的层次分析法应用于2个变压器油纸绝缘状态评估实例,算例结果表明:改进的层次分析法所得权重与传统层次分析法相比 ...
王楠 +6 more
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Automating the analysis of public saliency and attitudes toward biodiversity from digital media
Conservation Biology, EarlyView.Abstract Measuring public attitudes toward wildlife provides crucial insights into human relationships with nature and helps monitor progress toward Global Biodiversity Framework targets. Yet, conducting such assessments at a global scale presents challenges.
Noah Giebink +8 more
wiley +1 more source
Jixie chuandong, 2004 联轴器的找正是安装过程中一个很重要的环节 ,应用解析分析的方法进行联轴器的安装找正分析 ,并有微机辅助分析计算 ,数据处理速度快 ,提高了找正分析的准确性。
蒋志强 +4 more
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Conservation Biology, EarlyView.Abstract Constructed value of information (CVoI) is an expert elicitation decision‐analytic tool used to prioritize sources of uncertainty based on their potential to improve decision outcomes if resolved. Despite increased application of CVoI, the robustness of CVoI prioritization of sources of uncertainty relative to differences in expert elicitation
Kristin P. Davis +7 more
wiley +1 more source
A study on applying hierarchy analysis to evaluate nursing management in emergency department
Huli yanjiu, 2005 应用系统工程的层次分析法对急诊护理管理进行定量分析 ,一定程度上实现由定性分析向定量分析的转化 ,使问题处理的可信度更高。运用层次分析法对急诊护理各层次结构之诸要素进行方案排序 ,为决策者提供决策依据。
李荣花
doaj
Conservation Biology, EarlyView.Abstract Human development is a driver of global change and a major threat to biodiversity. Protected areas maintain and support biodiversity, but outside stressors, such as climate change and land use change, can negatively influence natural resources within protected areas.
Leah J. Rudge +2 more
wiley +1 more source