Results 51 to 60 of about 10,467 (165)
Challenges and opportunities in human dimensions behind cat–wildlife conflict
Conservation Biology, Volume 38, Issue 4, August 2024.Abstract Because global anthropogenic activities cause vast biodiversity loss, human dimensions research is essential to forming management plans applicable to biodiversity conservation outside wilderness areas. Engaging public participation is crucial in this context to achieve social and environmental benefits.
Changjian Fu +10 more
wiley +1 more source
Potholes, 311 reports, and a theory of heterogeneous resident demand for city services
Policy Studies Journal, Volume 52, Issue 3, Page 647-669, August 2024.Abstract Understanding the needs of residents is vital in public administration and management, as this helps officials when making choices on policies and service distribution. Increasingly, cities rely on 311 systems to elicit information from residents on emergent needs in particular policy areas (e.g., road quality, pest control).
Scott J. Cook +2 more
wiley +1 more source
Parliamentary questions, institutional change, and legislative oversight in a non‐Western context
Politics &Policy, Volume 52, Issue 2, Page 365-383, April 2024.Abstract This study examines how the Federal National Council (FNC), the parliament of the United Arab Emirates (UAE), transformed from a consultative body to a legislative institution through gradual and incremental changes. It argues that the increasing number of parliamentary questions led to legal, procedural, and behavioral changes in the FNC ...
Tarek Aboelwafa, Abdulfattah Yaghi
wiley +1 more source
Shuitu Baochi Xuebao, 2018 为了方便有效地预测坡地土壤养分流失，以硝态氮流失为研究对象，根据大量国内外文献资料中的试验数据，通过修正通用土壤流失方程，研究分析硝态氮地表径流流失的特征和影响因素，初步建立了坡地土壤硝态氮地表径流流失预测经验公式。结果表明：硝态氮流失量与五大影响因子之间均呈幂函数正相关关系。利用相关资料对经验公式预测准确性进行检验得出，硝态氮流失量预测值与实测值之间的相对误差为30.28%，模型确定性系数为0.772，模型计算结果与实测结果较为接近。因此，通过分析影响因子与硝态氮流失量之间的定量关系 ...
唐湘伟, 陶汪海
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, 2013 从宇宙论与计算之间的关系方面探讨明清之际中国天文学转型。中国古代天文学中宇宙论与计算是相互脱节的,这不仅体现在历法运算与狭义的宇宙论模型之间,还体现在历算与广义的宇宙论之间。明清之际,西方天文学传入中国。在此影响下,明清天文学家对中国天文学的宇宙论、计算之间的关系进行了重构,接受了西方天文学的以几何模型为基础的计算方法,以及藉助于几何及逻辑方法而展开的说理体系,宇宙论模型和计算方法得以融会。但是,这一转型只停留在宇宙论模型这一层面上 ...
王广超
core
Undrained deformation characteristic of saturated soft clay under traffic loading [PDF]
Previous studies on the undrained deformation behavior of saturated soft clay under traffic loading usually ignored the effect of cyclic confining pressure.
Lei SUN, Yuke WANG
core +1 more source
Gaoya dianqi, 1982 本文在理论分析和数学推导的基础上提出了一种螺纹量规中经尺寸的确定方法,并推荐了确定螺距公差和主副牙型角公差经验数据或公式。最后以SN10—10Ⅰ的铜压圈为例来说明锯齿形螺纹量规参数——中径、螺距、主副牙形角的尺寸确定方法。
金秀石
doaj
Dianci bileiqi, 1991 为了研究气体绝缘瓷套管的防爆措施,我们利用一些实际瓷套管进行了仿真爆炸试验,并根据试验结果,推导出一种计算瓷碎片散落距离的经验公式。此外,还研制了一种实验性的防爆式气体绝缘瓷套管,并验证了它的电气与机械性能。本文介绍这种实验性套管的试验结果及其设计特点。
伍企舜
doaj
The single pulse thermal effect mechanism of micro-EDM [PDF]
, 2016 为了解微能量单脉冲放电加工原理,文中从微细电火花单脉冲放电加工具有放电时间短,放电通道半径小,能量密度高等特点入手,从单脉冲热作用模型的放电通道半径和能量分配系数方面对当前电火花单脉冲蚀出模型进行改进。建立了时变放电通道的热作用模型,并验证了模型的正确性,提出了单脉冲热作用模型中能量分配到工件表面的百分比系数随着放电参数的变化而变化的规律,为微细电火花的广泛应用奠定基础。The single pulse micro electric discharge machining( micro-EDM) has
张利琼 +5 more
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