Results 41 to 50 of about 1,549,788 (235)
Shuitu Baochi Xuebao, 2021 为揭示荒漠草原区域围封对不同土壤生境物种多样性和功能多样性的影响，以荒漠草原不同土壤生境下围封（15年、10年、6年）和放牧（15年、6年、5年）的草地植物群落为研究对象，基于方差分析和主成分分析的基础上，通过函数拟合分析，探讨植物物种多样性与功能多样性之间的关系。结果表明：（1）围封相对于自由放牧条件，灰钙土生境植物功能多样性显著增加（P0.05）。（2）功能离散度表征的功能多样性与物种丰富度关系可用二次多项式Y=aX2+bX+c形式表示，随着封育年限的增加 ...
余轩 +6 more
doaj
Twelve principles for successful governance of community‐based coastal marine restoration
Conservation Biology, EarlyView.Abstract Global agreements, such as the Global Biodiversity Framework, call for urgent, large‐scale action to halt biodiversity loss through a whole‐of‐society approach. Community‐based restoration can play a crucial role in achieving this goal, yet there remains limited understanding of what makes these projects effective and sustainable.
Michelle M. Holian +2 more
wiley +1 more source
Conservation Biology, EarlyView.Abstract Site fidelity is the tendency for animals to repeatedly return to the same locations, either within or between years. Site fidelity enables animals to utilize knowledge of previously visited locations, including assessments of seasonal variations in health and mortality risks (e.g., predation), resource availability, and social benefits such ...
Tobias A. Ross +13 more
wiley +1 more source
Gongye shui chuli, 2016 海上聚合物驱采油污水成分复杂、乳化程度高、处理难度大，对清水剂的性能提出了更高要求，传统的清水剂性能评价方法已无法满足要求。分析了传统清水剂性能评价方法中存在的不足，结合海上油田现场采出液处理问题，分别从评价条件、水质性能、絮体性能、溶解及配伍性能方面探讨了海上油田含聚污水用清水剂的评价指标及方法，并提出对清水剂的絮体黏附性和流动性等应给予关注。
翟磊 +4 more
doaj +2 more sources
Conservation Biology, EarlyView.Abstract Modeling species distributions in dynamic pelagic environments remains challenging, particularly for wide‐ranging and highly mobile species when there is limited guidance on model performance. This limitation constrains the effective use of species distribution models (SDMs) in marine conservation, where robust and transferable predictions are
E. Pasanisi +32 more
wiley +1 more source
Conservation Biology, EarlyView.Abstract Adaptive management of threatened species relies on having ex ante estimates of species’ responses to different interventions. Structured expert elicitation is often used to generate these estimates, but comparisons of these expert‐predicted outcomes with observed results are rare.
Helen J. Mayfield +18 more
wiley +1 more source
, 1999 自我一致性和功能一致性是影响消费决策的重要心理过程，自我一致性和功能一致性受产品特点和消费者自身特点的影响；自我一致性和功能一致性的测量模型 ...
王怀明
core +1 more source
, 2000 固体吸附制冷是利用低温热源的一种新型制冷方式。本文对多种固体吸附制冷工质对进行了试验研究，得到不同温度下的吸附曲线和解吸曲线，并根据D-A方程进行了线性拟合得到各工质对的W_0、D值。通过分析和比较，在所选工质对中，活性炭纤维-甲醇的吸附解吸综合性能最好，粉末活性炭的性能也较好，但要求的解吸温度较高。乙醇代替甲醇作制冷剂是可行的，但甲醇-乙醇混合物作制冷剂是不可行的。本研究还设计了一种新型太阳能制冷-热水两用机，采用活性炭粉末-甲醇为工质对，两个吸附器，每个吸附器内装4kg活性炭粉末 ...
毛雪梅
core +1 more source
Guangtongxin yanjiu, 2018 介绍了一种基于各类通信设备的网元性能统计方案,目的是减少网管对于大量冗余性能数据的处理,提升网管性能数据的处理效率。首先探讨了网元性能模块的整体框图和架构,它主要由3部分组成:网管、主控和单盘,文章只涉及了主控部分的实现,然后简述了网元性能采集功能的实现方法和统计流程,最后给出了无效性能的解决方案。文章所研究的方案在很大程度上减少了冗余性能数据,显著提升了处理效率。
张轶琦
doaj
Intact coastal nursery rearing amid climate‐driven phenological shifts in threatened salmon
Conservation Biology, EarlyView.Abstract Literature linking phenology to climate has proliferated in recent decades and shows that climate change has reorganized seasonal opportunities worldwide. However, this literature often quantifies changes in point measures of timing (e.g., beginnings and peaks) without context about duration (e.g., rearing season length) or performance (e.g ...
Stuart H. Munsch +8 more
wiley +1 more source