Results 21 to 30 of about 20,455 (123)
Jianzhu Gangjiegou Jinzhan, 2002 本文提出了实际工程结构的非线性理论设计和分析方法(NIDA),并以澳门回归纪念馆的设计为例,展示了本方法的优越性。在设计过程中,设计者无需假设K系数和有效长度,在结构分析完成后便可迅速完成设计,因此本文提出的方法既经济又便利。尽管对于钢框架在往复荷载及动力荷载作用下的弹塑性大位移分析已经非常成熟,但本文的方法开创了结构的非线性分析及设计的新纪元 ...
陈绍礼
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Dianci bileiqi, 2023 折线法和滚球法是国内防雷保护设计人员熟知的两种方法。由于GB 50057标准没有明确说明此标准不适用于电力线路和变电站设计，GB/T 50064标准又没有引入滚球法，导致国内设计人员常错误的将GB 50057规定的滚球法做为变电站防雷设计的依据。通过对GB、IEC、IEEE等防雷标准对比，明确了变电站防雷设计应采用的方法和采用滚球法时应参考的标准。对于变电站防雷设计而言，两种方法都可采用。如采用滚球法，滚球半径的选择可采用IEC61936-1或IEEE 998规定的方法，而不应采用GB 50057 ...
贾云磊, 杨远松
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Conservation 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
Evaluating synthetic substitutes to reduce illegal harvesting and support species recovery
Conservation Biology, EarlyView.Abstract Providing synthetic substitutes is a widely promoted strategy to shift consumer demand away from wildlife products derived from threatened species. Yet, there is little evidence on whether product substitution prevents illegal or unsustainable harvesting and contributes to the recovery of threatened populations.
Aditya Shekhar Malgaonkar +17 more
wiley +1 more source
Gaoya dianqi, 2013 依据电气设备结构特点和功能性等要求,与建筑物减震设计不同,电气设备减震设计有其独特特点。笔者在中国对高压电气设备的减震设计方法进行了较为系统明确的研究,内容涵盖到减震设计的初步设计、减震分析计算等方面,并将该设计方法成功地应用到一个试验实例中。研究表明,这种方法对于指导高压电气设备的减震设计和工程应用均有参考意义。
程永锋 +3 more
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Role of funders in embedding tests in conservation practice
Conservation 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
Shiyou jixie, 2012 针对复杂地质条件下套管外载荷多变的特点，建立了基于遗传算法的套管柱优化设计方法。应用遗传算法理论，确定染色体编码方式及初始种群的产生方法，染色体评估函数及遗传操作，建立基于遗传算法的套管柱优化设计模型，从而克服了传统套管柱设计方法在复杂地质条件下套管柱强度设计中运算过程复杂，无法兼顾套管成本与风险因素的缺点。对普光气田某井套管柱进行的设计验证情况表明，该方法设计结果准确可靠，既提高了套管柱可靠性，又有利于降低成本。该项研究为复杂地质条件下优化套管柱设计提供了新的方法。
何英明 +4 more
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Assessing and strengthening community‐based coastal governance
Conservation Biology, EarlyView.Abstract Community‐based coastal governance is essential for biodiversity conservation and sustainable livelihoods, yet many communities continue to face significant challenges in establishing and sustaining effective governance systems. We sought to improve understanding of the current status of community‐based coastal governance across five countries
Mark Andrachuk +21 more
wiley +1 more source
Psychometric framework for coexistence with large carnivores
Conservation Biology, EarlyView.Abstract Human–carnivore coexistence is essential for biodiversity conservation, yet measuring the attitudes and behaviors that support it remains methodologically challenging. We developed psychometric scales to assess willingness to coexist with carnivores and the underlying beliefs of this coexistence through an iterative expert elicitation process ...
Benjamin Ghasemi +14 more
wiley +1 more source
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