Results 41 to 50 of about 1,226,577 (254)

Constructed value of information with iterative scoring and parametric uncertainty to identify management‐relevant research priorities for a declining raptor species

open access: yesConservation 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

网元性能统计方案中主控的设计与实现

open access: yesGuangtongxin 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  

钴-均苯三甲酸配合物的热力学性能、热稳定性及其传感性能的研究

open access: yes, 2013
钴-均苯三甲酸配合物的热力学性能 ...
徐芬   +4 more
core  

Drivers of bat researchers’ intent to adopt field hygiene practices

open access: yesConservation Biology, EarlyView.
Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman   +6 more
wiley   +1 more source

血清总铁结合力检测对慢性肾功能不全诊断的临床价值

open access: yesZhongguo shiyan zhenduanxue, 2018
目的探讨血清总铁结合力(TIBC)对慢性肾功能不全诊断的临床价值。方法选取30例慢性肾功能不全患者作为实验组与30例健康人作为对照组,分析两组血清TIBC的水平;ROC曲线评估TIBC对慢性肾功能不全诊断的价值;Kappa检验分析TIBC对慢性肾功能不全诊断与肌酐诊断结果的一致性。结果慢性肾功能不全组的血清TIBC为(40.86±7.54)μmol/L,而对照组血清TIBC为(61.96±7.48)μmol/L,差异有统计学意义(t=10.87 ...
武标, 徐丽丽
doaj  

超級電容儲能特性之探討

open access: yes, 2018
[[abstract]]目前環境的議題已經逐漸受到重視,全球暖化一天比一天嚴重,主 要是因為全球在近 50 年大量使用化石燃料排放CO2 所造成。全球各國 已在 2015 年12 月12 日在巴黎召開的氣候高峰會簽屬自主探管理協議。 為了達成減碳目標,低碳排放的再生能源(renewable energy),如太陽能、 風能、生質能等,勢必成為各國努力發展並使用替代化石燃料的方式。 利用大自然能量之再生能源,由於無法持續穩定供應電力,所以必須配 合儲能設備,才能達到具有實用價值目的 ...
賴冠廷;詹淳凱;張宸碩
core  

Advancing conservation breeding programs for marine invertebrates

open access: yesConservation Biology, EarlyView.
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam   +3 more
wiley   +1 more source

LNM材料力学性能测试中心(1)——为什么要做材料力学性能测试?

open access: yes, 2013
编者按:在中国科学院“知识创新工程”的持续支持下,力学研究所的装备建设获得了长足的进展,特别是公共实验平台体系的形成为研究与开发工作铺垫了坚实的物质基础。本刊将在“漫步力学所”栏目中,陆续介绍力学所公共实验平台体系的组成、功能与应用。本期将介绍非线性力学国家实验室(LNM)公共实验平台下属的材料力学性能测试中心。 LNM材料力学性能测试中心(1)为什么要做材料力学性能测试?郇勇 王柏懿    一 ...
郇勇, 王柏懿
core  

Taxonomic and functional diversity of urban bees of the world

open access: yesConservation Biology, EarlyView.
Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso   +10 more
wiley   +1 more source

添加剂在高强度电瓷坯料中的应用初探

open access: yesDianci bileiqi, 1992
介绍了几种添加剂在高强电瓷坯料中的试验结果,初步分析了它们对坯料工艺性能的影响机理.试验结果表明磷酸钠加CMC复合添加剂能较显著提高坯料的工艺性能,特别是可塑性能,且具有良好的泥浆性能和施釉性能.
易汝干, 赵春林
doaj  

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