Results 11 to 20 of about 1,016,161 (161)
Jianzhu Gangjiegou Jinzhan, 2007 本文分析了半刚性连接组合梁框架的在水平荷载作用下的受力特性,提出了对于具有合理构造措施的半刚性连接框架,采用塑性分析方法进行在水平荷载作用下的框架整体极限承载能力、组合梁的承载能力及框架柱的承载能力验算。采用塑性分析方法可使设计计算工作量极大地降低,而且能给出较为安全和准确的分析结果,这可供半刚性连接框架的实际设计参考。
刘清平, 李国强, 王静峰
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Jianzhu Gangjiegou Jinzhan, 2007 全面介绍了半刚性梁柱组合节点的研究现状和发展趋势,包括试验研究、理论分析模型和滞回模型等几个方面,指出了需要进一步研究的问题和方向。
李国强, 石文龙, 肖勇
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Jianzhu Gangjiegou Jinzhan, 2004 本文采用三维非线性有限元分析方法,讨论了钢结构半刚性梁柱节点连接的杠杆力分布及杠杆效应对节点连接受力性能的影响。按塑性设计理论给出了节点连接杠杆力的最大值,提出了保证节点工作性能安全、可靠的计算方法,以利于工程设计。
王燕, 厉见芬
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, 2021 物理学里的微观客体，如电子、质子，在某些相互作用下，是否一定能够表现出足够强的刚性，以形成某些具体的物理实验里可以测量的半径、体积？这个疑问来自宏观世界里的物体可以具有液态、气态、固态、等离子态等的启发和类比。原子核的刚性早就被实验证实了。目前还没有测量到电子的半径。“电子没有体积”的实验结果，会不会是由于实验中采用测量方式的相互作用的刚性 ...
Zheng-Ling YANG
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Informal supply chains of wild meat from rural Amazonia and food security in an urban center
Conservation Biology, EarlyView.Abstract Iquitos, the most populated city in the Peruvian Amazon, is a hub in the regional supply chain of wild meat and supplies urban consumers. Studies on wild meat consumption have focused primarily on markets, limiting the scope of species considered to those that are economically valuable and potential inferences from those data.
Fiorella Briceño Huerta +3 more
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Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework
Conservation Biology, EarlyView.Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift +8 more
wiley +1 more source
Conservation Biology, Volume 40, Issue 3, June 2026.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
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Geographic risks to functional groups of mammals and birds from habitat loss in Mexico
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás +4 more
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Biodiversity‐driven spatial conservation planning to delineate temporally stable regions
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella +5 more
wiley +1 more source
Strengthening community‐based fisheries monitoring programs with Indigenous perspectives
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract Community‐based monitoring (CBM) programs are increasingly recognized as essential for adaptive environmental stewardship. Yet, the CBM literature often highlights successful cases and privileges evaluations by external experts over those of community members themselves.
Kanwaljeet Dewan +2 more
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