Results 51 to 60 of about 17,465 (227)
The collective application of shorebird tracking data to conservation
Conservation Biology, EarlyView.Abstract Addressing urgent conservation issues, such as the drastic declines of North American migratory birds, requires creative, evidence‐based, efficient, and collaborative approaches. The abundance of over 50% of monitored North American shorebird populations has declined by over 50% since 1980. To address these declines, we developed a partnership
Autumn‐Lynn Harrison +71 more
wiley +1 more source
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
, 2018 明线会车、隧道会车和过隧道工况下的气动压力波对高速列车的动力响应和运行安全产生很大影响,本文建立了三辆编组的高速列车动力学模型,通过数值仿真得到了列车在三种工况下的车体所受的气动力,基于数值积分分析了列车的动力响应和脱轨系数。研究发现:明线会车和隧道会车工况相比,车辆的侧向运动相反。明线会车和过隧道时,气动载荷对列车的脱轨系数影响较小,而隧道会车时 ...
吴晗 +4 more
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Experimental study on the hydrodynamic characteristics of a combined structure of offshore wind turbine jacket and net cage [PDF]
ObjectiveThis paper proposes a novel structure that combines an offshore wind turbine jacket and aquaculture net cage, and its hydrodynamic characteristics are investigated.
Biao QIU +5 more
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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
A novel method coupling numerical and analytical methods for seismic dynamic response analysis of soil-structure interaction systems [PDF]
, 2014 本文提出了一种新的数值解与解析解耦合的理论和计算方法，研究土－结构相互作用(SSI)体系的地震动力响应。在SSI分析方法中，传统的基于频域内的解析方法只适用于简单的线弹性结构、刚性基础和等效线弹性的半无限大地基组成的体系中，具有较大的局限性。而基于非线性有限元的数值法，能较好的处理实际问题中的复杂结构，考虑地震中土和结构的非线性行为、土－结构之间的接触面以及土的边界等问题，但该方法计算量大。因此在子结构法的基础上，本文提出了一种新型的数值解与解析解耦合方法 ...
傅敏红
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Sensitivity method of vehicle parameters identification through dynamic responses of bridge [PDF]
, 2016 2006-2007 > Academic research: refereed > Publication in refereed journalVersion of ...
Bu, JQ, Law, SS, Wang, Y
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Conservation Biology, EarlyView.Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta +24 more
wiley +1 more source
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
Centrifuge model test on dynamic response of sandy foundation with clay interlayer [PDF]
Natural riverbed overburden is often composed of stratified deposits of various soil types, resulting in a complex structure commonly accompanied by clay interlayers. This study conducts a series of centrifuge shaking table model tests to investigate the
CHEN Jinyi1, 2 , FU Zhongzhi1, 3 , CHEN Shengshui1, 3, CHEN Cong1, CHEN Chenghao1, 3
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