Results 31 to 40 of about 22,626 (131)

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

高压断路器运动特性仿真

open access: yesGaoya dianqi, 2003
根据高压断路器分闸运动原理,建立了高压断路器液压机构与压气室的联合运动方程。通过仿真,分析了运动方程中各种力参数对分闸运动特性的影响和操作功特性,并且从理论上提出了调节分闸运动特性的两种途径。
孙弋   +4 more
doaj  

Centering geospatial data uncertainty and the potential for injustice in pastoralist rangeland conservation prioritization

open access: yesConservation Biology, EarlyView.
Abstract Procedural, distributional, recognitional, and epistemic justice aspects of conservation interventions are well documented in contexts where pastoralism is a key livelihood and way of life. Geospatial analyses and representations of wildlife conservation and restoration that are increasingly applied in pastoralist rangeland socioecological ...
Ryan R. Unks
wiley   +1 more source

自动照相系统在野生动物调查中的应用

open access: yes野生动物学报, 2010
概述了自动照相系统的工作原理,介绍了该技术在国内外野生动物调查中的现状,同时还结合作者近几年的研究体会,分析了自动照相系统用于野生动物调查时的特点和存在问题及今后发展的趋势。作者认为,这项技术虽仍有不足,但由于自动照相系统所具有的客观性、隐蔽性、非损伤性及监测的长期性等特点,将来会在野生动物调查中具有非常重要的应用价值和可观的应用前景。
封托, 王静, 张洪峰, 吴晓民
doaj  

Emerging applications of large language models in ecology and conservation science

open access: yesConservation Biology, EarlyView.
Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides   +5 more
wiley   +1 more source

高压开关液压操动机构缓冲特性与可靠性分析

open access: yesGaoya dianqi, 2016
高压开关是电力系统中起控制与保护作用的关键设备,液压操动机构是高压开关的驱动部件,直接影响到开关的动作性能。分析液压操动机构常用的阶梯型缓冲结构的工作原理,建立相应的数学模型,在此基础上对缓冲特性进行计算与分析。最后对缓冲特性进行优化,并通过可靠性试验验证优化前后的效果,从而为提高高压开关可靠性提供一种思路。
王亚辉   +4 more
doaj  

避雷器放电计数器多重雷击动作特性改进研究

open access: yesDianci bileiqi, 2021
受电容器充放电时间常数、电磁式机械翻牌动作时间的限制,以及放电电流的波形差异的影响,实际运行放电计数器存在不可靠动作的问题,尤其是难以记录多重雷击作用下的动作情况,给过电压分析、避雷器动作状态的评估带来困难。因此,笔者在分析传统放电计数器动作特性基础上,提出改进计数器动作特性的脉冲电流提取方法,设计了相应的脉冲电流测量线圈和信号提取电子电路,实测了信号测量线圈和电子电路的准确性。试验证明,该电流提取线圈能可靠还原冲击电流陡波、标准雷电波和操作波电流波形,误差小于0.2 ...
安志国   +6 more
doaj  

Evaluating the use of taxonomy in the IUCN Red List

open access: yesConservation Biology, EarlyView.
Abstract Taxonomy defines the units that conservationists strive to preserve for future generations. However, the discovery of new species and the taxonomic revision of existing species affect conservation efforts. Despite the importance of taxonomy for a species’ conservation, there is currently no overview of how those leading species extinction risk
Stephen T. Garnett   +8 more
wiley   +1 more source

带脱离装置MOA的研究与开发(续)

open access: yesDianci bileiqi, 1995
带脱离装置MOA的研究与开发(续)闫中华(苏州电瓷厂苏州215007)(上接《电瓷避雷器》1995年第3期第9页)6热熔式脱离装置(动作)安秒特性试验方法的研究脱离装置(动作)安秒特性是脱离装置最重要的特性。以前,热熔式脱离装置使用得很少,IEC、一...
闫中华
doaj  

Role of funders in embedding tests in conservation practice

open access: yesConservation Biology, EarlyView.
Abstract Effective conservation practice requires decisions based on reliable and relevant evidence, but significant gaps in the evidence base exist. Incorporating well‐designed tests of the effectiveness of interventions for biodiversity in conservation projects is one of the best ways to scale up the rate of evidence generation.
Rebecca K. Smith   +28 more
wiley   +1 more source

Home - About - Disclaimer - Privacy