Results 11 to 20 of about 828,971 (168)
Jianzhu Gangjiegou Jinzhan, 2015 大量工程实践表明,组合梁的破坏主要源于抗剪栓钉的疲劳破坏。在疲劳荷载下,承受拉压循环应力的栓钉裂纹萌生、扩展至最终断裂,使钢梁与混凝土的组合作用失效,所以研究栓钉中裂纹萌生及扩展规律对实际工程具有重大意义。扩展有限元(eXtended Finite Element Method,XFEM)是近年来发展起来的一种求解涉及移动非连续问题的有效方法。基于ABAQUS平台利用此方法建立了组合梁推出试验的模型,进行了静力承载力以及疲劳寿命分析,模拟了栓钉中裂纹从萌生到断裂失效的过程 ...
韩庆华, 王一泓, 徐杰, 邢颖
doaj +2 more sources
Veterinary Dermatology, Volume 34, Issue 6, Page 543-553, December 2023., 2023 Background – Hymenoptera envenomation with honey bee (Apis mellifera) and paper wasp (Polistes spp.) may cause life‐threatening anaphylaxis in dogs. In human patients, clinical history, intradermal testing (IDT) and measurement of allergen‐specific serological immunoglobulin (Ig)E (sIgE) are used to support a diagnosis of Hymenoptera venom ...
Hilary H. Chan +3 more
wiley +1 more source
Region‐wide retreats from lower elevations of range‐restricted birds across the Northern Andes
Conservation Biology, Volume 37, Issue 5, October 2023., 2023 Abstract Local studies show upslope shifts in the distribution of tropical birds in response to warming temperatures. Unanswered is whether these upward shifts occur regionally across many species. We considered a nearly 2000‐km length of the Northern Andes, where deforestation, temperature, and extreme weather events have increased during the past ...
Wilderson Medina +2 more
wiley +1 more source
, 2023 大容量试验是检验电力装备性能，保障装备安全可靠运行的重要环节。现有的大容量试验回路主要依靠人工操作，存在流程复杂、效率低且易出错的问题。针对大容量试验回路智能化控制的难题，研究建立了冲击发电机单电机短路模型和双电机并联短路模型，分析了发电机短路特性，结合典型大容量试验回路设计了一键顺控方案，提出试验回路一键顺控操作流程。通过对发电机短路模型和大容量试验回路系统的仿真 ...
戴建卓 +7 more
core +1 more source
Family Process, Volume 62, Issue 2, Page 534-556, June 2023., 2023 Abstract Study of change mechanisms is important to advance theory development and to reveal the active components that make a critical difference in treatment. Improved outcomes in a randomized controlled trial that favored Congruence Couple Therapy (CCT) vs individual‐based Treatment‐as‐Usual (TAU) were correlated within each group.
Bonnie K. Lee +2 more
wiley +1 more source
Infant Mental Health Journal: Infancy and Early Childhood, Volume 44, Issue 2, Page 200-217, March 2023., 2023 Abstract Parenting interventions can improve parenting outcomes, with widespread implications for children's developmental trajectories. Relational savoring (RS) is a brief attachment‐based intervention with high potential for dissemination. Here we examine data from a recent intervention trial in order to isolate the mechanisms by which savoring ...
Jessica L. Borelli +5 more
wiley +1 more source
Journal of Traumatic Stress, Volume 36, Issue 1, Page 59-70, February 2023., 2023 Abstract Clinical supervision is critical for the uptake of psychotherapy but difficult to facilitate in countries with limited providers, resources, and internet infrastructure. Innovative supervision approaches are needed to increase access to mental health treatments in low‐to‐middle income countries (LMICs).
Alexandra B. Klein +16 more
wiley +1 more source
Once bitten, twice shy: The overgeneralization trap and epistemic learning after policy failure
Politics &Policy, Volume 50, Issue 6, Page 1177-1202, December 2022., 2022 Abstract Why do smart policy makers who try to learn from policy failure end up overgeneralizing these lessons when facing new crises? This article focuses on the policy learning that can come in the wake of perceived policy failure, and the consequences that lesson learning has for diagnosing and tackling subsequent crises.
Derek Beach, Sandrino Smeets
wiley +1 more source
Gaoya dianqi, 2021 由断路器和合成试验标准规定的工频恢复电压(PFRV)推导出合成试验时PFRV的衰减时间常数,分析了PFRV的严酷度,给出了工频恢复电压电抗器的正确定值方法,以及它的衰减时间常数的解析计算式。
庄稼人, 张玲, 郑占锋
doaj
Behavioral interventions to reduce demand for threatened freshwater turtles as pets
Conservation Biology, EarlyView.Abstract Growing demand for freshwater turtles as pets has fueled illegal trade and accelerated wild population declines, underscoring the need for theory‐based demand‐reduction interventions. We conducted a three‐part randomized controlled trial with active turtle keepers (n = 1800) in China to test conservation‐ and legality‐framed messages by ...
Wuji Zheng +9 more
wiley +1 more source