Results 81 to 90 of about 253,021 (198)
The Boundary Layer Flow with Suction and Injection on the Boundary Surface [PDF]
, 1959 The influence of the suction and injection on the separation point of the steady laminar boundary Layer is studied by the von Karman-Pohlhausen integral method.
三上 房男
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One‐Sidedness and the Inferior Function in Coriolanus and Timon of Athens
Journal of Analytical Psychology, EarlyView.Abstract For both Jung and Shakespeare, one‐sidedness is the fundamental tragic trait. Jung proposed that as an individual develops, they inevitably associate their identity with certain modes of perception and interaction, and that this leads to psychological polarization.
Sofie Qwarnström
wiley +1 more source
Dianci bileiqi, 2016 雷电的统计分布特性是雷电科学研究的重要基础。利用香港2005年至2014年雷电闪监测资料,进行了雷电的时域分布和雷电流的统计分布特性分析。研究表明:十年雷电总数的逾半数集中分布于极少数日子,深入挖掘相关数据可以为电力系统防雷提供新的可能。香港地闪雷电流幅值频率分布特征随闪电极性有显著差异,负闪雷电流幅值及出现频次均高于正闪。利用IEEE雷电流幅值概率分布公式计算了雷电流幅值的概率密度分布曲线方程,能较准确地反映香港雷电活动规律。
黄礼忠 +4 more
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Conservation Biology, EarlyView.Abstract Measuring area‐based conservation outcomes in tropical forests is challenging due to cryptic human disturbances (e.g., hunting). As a result, comparative studies of management strategies providing quantitative outcomes remain scarce, especially in the Neotropics.
Lucy Perera‐Romero +5 more
wiley +1 more source
Gaoya dianqi, 2009 内部均压是高压硅堆研制的关键技术,而硅堆电压分布不均的现象在端部最为突出。以硅堆分布参数等效电路为基础,先采用解析方法分析硅堆内部电压分布规律和影响因素,针对硅堆端部电压分布尤其不均匀的特点,建立EMTP仿真模型,分析端部强制均压元件参数对硅堆电压分布不均匀系数的影响。提出采用非等值均压参数配置方法改善端部电压分布,并通过实验验证了这种非等值均压参数配置方法对改善高压硅堆电压分布不均匀度的效果。研究表明,这种端部均压方法能有效降低硅堆端部的分压,从而提高硅堆整体的反向耐压。
张磊 +4 more
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Evaluating past and future contributions of conservation programs to species recovery
Conservation Biology, EarlyView.Abstract Impact evaluation of conservation actions is a crucial step in global efforts to curb the biodiversity crisis. Through robust impact evaluation, practitioners can assess the effectiveness of conservation strategies and optimize the use of limited resources.
Rebeca E. Young +10 more
wiley +1 more source
中国历史上的虎(Panthera tigris)亚种名称及分布地
野生动物学报, 2016 根据对中国200万年以来虎的分布变迁系统研究,表明中国历史上分布的虎在生态环境变迁过程中曾产生9个亚种,它们的出现与部分灭绝的亚种并不在同一时间。文中不仅对新增虎亚种进行考证,而且对大部分虎亚种的形态、栖息地、分布地区进行梳理,明确它们的古今分布状况及分布界线,还提出规范各虎亚种名称的具体建议。
文榕生 张明海
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Effects of parachute science on local research capacity 降落伞科学对当地研究能力的影响
Conservation Biology, EarlyView.Abstract Strengthening research capacity is essential to address the global biodiversity crisis. Yet, parachute science often undermines this goal, and its prevalence, costs, and benefits are unclear. We analyzed 13,502 publications on primate research that we extracted from Scopus (1960–2022) to evaluate the effects of parachute science on local ...
Li Yang +11 more
wiley +1 more source
Dianci bileiqi, 1989 论述了应用有限元法计算MOA电位分布和一种新型简便的具有一定精度的电位分布测量方法.两种结果取得了良好的一致性.通过计算和试验研究,分析了影响MOA电位分布的各种因素,并提出了电位分布优化设计方法.
毛慧明, 周佩白, 王国红
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