Results 31 to 40 of about 6,681 (167)
Integrative Conservation, Volume 3, Issue 3, Page 271-280, September 2024.The Greater Himalayas in India, of which Kishtwar High Altitude National Park (KHANP) is a part, harbours potential snow leopard habitat. We sampled three catchments within the Dachhan region of KHANP using 44 cameras and identified four unique snow leopard individuals across 14 detections in nine camera locations.
Munib Khanyari +8 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2010 为了更深入了解金属蒙皮支撑连续檩条在整体蒙皮结构中所起的作用,为今后我国对连续檩条以及蒙皮结构的设计、计算提供依据,通过足尺模型试验和有限元模型的分析,研究了蒙皮支撑冷弯薄壁连续型钢檩条模拟风吸力作用的承载力。利用有限元程序ANSYS建立了带有非线性弹簧单元模拟自攻螺钉这一符合实际连接状况的有限元模型,与足尺试验模型的失稳模式、荷载-位移曲线、连接强度以及连接刚度的规律等相对比,验证了有限元模型的合理性、有效性及适用性。
潘宇 +6 more
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Structural Probability Damage Identification with Integration of Structural Reliability Evaluation [PDF]
, 2016 考虑不确定性的损伤识别及可靠度指标对结构安全评估起着关键作用。由于各种不确定性因素的影响，从而导致观测数据、识别结果具有不确定性问题。目前，关于损伤识别的理论和方法有很多，然而基于不确定性的损伤识别及可靠度研究仍是一个重要课题。 常用的不确定性的结构损伤识别方法主要分为以下几类：1）基于经典概率统计的损伤识别；基于概率的损伤识别方法都是采用数值仿真算例来进行的，对于损伤和噪声的模拟同实际结构会有一定的出入。2）基于贝叶斯模型修正的损伤识别；贝叶斯模型修正方法大多是将预测误差建模为高斯白噪声过程 ...
翁梦秀
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World Medical &Health Policy, Volume 16, Issue 3, Page 316-342, September 2024.Abstract Prior research in health equity, including food security, indicates that disadvantaged groups, such as women with limited resources, face many obstacles in achieving food security. One of the first of its kind to draw on intersectionality and the social determinants of health frameworks, this study identified and tested gender differences in ...
Farzaneh Barak +2 more
wiley +1 more source
Nonlinear finite element analysis for seismic performance of high-strength concrete beam-column joints with new reinforcement details [PDF]
, 2006 Because the factors that affect the behavior of the beam-column joints are complicated, an experimental study alone is not sufficient. Therefore, a nonlinear finite element analysis was conducted to provide better understanding of the performance of the ...
Gan, L, Li, J, Pam, HJ
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World Medical &Health Policy, Volume 16, Issue 2, Page 198-207, June 2024.Abstract The availability of hospital‐based dental services across Australia varies with a number of hospitals disestablishing dental departments due to rising costs. However, the perceived costs are difficult to quantify as funding models used to capture activity are not uniform across health facilities.
Pritam Daniel Sundaresan +3 more
wiley +1 more source
Imaging anatomy and hemodynamic simulation of the extracranial segment of vertebral artery [PDF]
, 2015 研究背景:椎-基底动脉系统是脑组织供血的重要血管之一，主要为脑干、小脑及双侧大脑半球后1/3供血。双侧椎动脉（vertebralartery，VA）主要发自于锁骨下动脉，于C6水平入横突孔，穿行于上6颈椎横突孔内，经枕大孔入颅；在脑桥前下合并为基底动脉，其寰枢段走行弯曲，周围解剖结构复杂。深入研究椎动脉的相关形态及血流动力学，对提高后循环缺血诊断和治疗具有重要的临床意义。 目的：（1）利用多排螺旋CT（multi-slicespiralCTangiography，MSCTA ...
许兵强
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Wildlife mortality risk posed by high and low traffic roads
Conservation Biology, Volume 38, Issue 2, April 2024.Abstract Wildlife mortality due to collisions with vehicles (roadkill) is one of the predominant negative effects exerted by roads on many wildlife species. Reducing roadkill is therefore a major component of wildlife conservation. Roadkill is affected by various factors, including road attributes and traffic volume.
Dror Denneboom +2 more
wiley +1 more source
Dianci bileiqi, 2016 结合我国电力设施抗震设计规范（GB 50260—2013）,试验数据及有限元模型,对高压电气设备法兰胶装节点弯曲刚度进行研究。采用有限元方法对500kV氧化锌避雷器建立三种不同模型,计算对比三种模型,研究法兰节点弯曲刚度。提出法兰节点刚度EI的修正系数,提供一种新的建立法兰胶装节点有限元模型的方法。
陈巍, 范荣全, 曹枚根, 卓越
doaj
Study on Vibration Characteristic of Operational Bridge Based on Monitoring Data [PDF]
, 2016 桥梁结构监测系统能够对结构进行实时自动的状态监测，为评价运营桥梁的承载能力、使用功能和安全可靠性提供数据基础。近年来因为缺乏科学监测与管理所引起的桥梁垮塌事故频频发生，因此有必要利用监测数据对重要大桥的结构运营状态进行评估。本文基于厦门天圆大桥结构监测系统的实测数据，对单拱肋中承式梁拱组合桥型的振动特性进行研究，重点包括大桥的模态参数识别与短吊杆疲劳寿命估计两方面。本文主要工作内容如下： 首先，阐述了桥梁结构监测系统与模态分析方法的发展现状，总结了中承式拱桥结构特点与短吊杆疲劳问题 ...
何文朋
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