Results 31 to 40 of about 6,119 (118)
Ultrasound in Obstetrics &Gynecology, Volume 64, Issue 6, Page 808-817, December 2024.ABSTRACT Objectives The primary aim was to validate the International Ovarian Tumor Analysis (IOTA) benign simple descriptors (BDs) followed by the Assessment of Different NEoplasias in the adneXa (ADNEX) model, if BDs cannot be applied, in a two‐step strategy to classify adnexal masses identified during pregnancy. The secondary aim was to describe the
J. Barcroft +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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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
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
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
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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
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
Zhongguo shiyan zhenduanxue, 2006 目的建立下颌单侧游离端冠外精密附着体三维有限元模型,为附着体义齿应力分析提供基础。方法采用CT扫描和I-DEAS软件,手工建模。结果建立了能够应用接触单元的下颌单侧游离端冠外精密附着体三维有限模型。结论采用I-DEAS软件可建立游离端冠外精密附着体三维有限元模型,此模型能反映冠外精密附着体构件之间义齿的接触关系,提高模型的仿真性。
王伟 +4 more
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Jianzhu Gangjiegou Jinzhan, 2021 钢材高温蠕变是钢材在高温和应力作用下的塑性应变。高温蠕变会导致钢柱变形增大,耐火极限降低。为了考察高温蠕变对冷弯薄壁型钢柱抗火性能的影响程度,建立了考虑高温蠕变的抗火分析有限元模型,通过试验结果对有限元模型进行验证。利用模型研究了在不同荷载比、轴向约束刚度比、升温速率和火灾场景下,高温蠕变对冷弯薄壁型钢柱抗火性能的影响。研究表明,在有限元模型中考虑蠕变因素后,对于钢柱抗火性能的预测更为准确,更符合真实情况;在中等升温速率的火灾场景中,荷载比为0 ...
杨竞杰, 王卫永
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Jianzhu Gangjiegou Jinzhan, 2018 结合材性试验获得的不锈钢母材和焊缝金属材料本构关系模型,使用ANSYS有限元软件对奥氏体型S30408不锈钢角焊缝连接的承载性能进行了非线性有限元模拟,并将模拟结果与不锈钢正面角焊缝连接试件和侧面角焊缝连接试件拉伸试验结果进行了对比,验证了有限元模型的有效性。利用经试验验证的有限元模型对角焊缝承载力影响因素进行了参数分析,并将有限元模拟值与按照美国规范SEI/ASCE 8-02、欧洲规范EN 1993-1-4,以及中国《不锈钢结构技术规程》(CECS 410:2015)计算求得的规范设计值进行了对比 ...
张有振 +4 more
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