Results 21 to 30 of about 13,971 (184)
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
Zhongshan Daxue xuebao. Yixue kexue ban, 2000 【目的】了解磁性固位的下颌种植覆盖义齿的应力状况及其分布规律, 为磁性固位体的临床应用提供生物力学 依据。【方法】采用二维光弹应力分析法, 分析圆柱形种植体在垂直向和侧向加载条件下种植体— 骨界面的应力状况。【结 果】种植体应力主要为均匀分布的压应力, 最大应力位于种植体根尖部, 颈部应力相对较小, 未见明显弯曲应力。【结论】磁 性固位种植义齿的种植体应力分布符合生物力学要求, 有利于种植体的长期成功。
魏素华 +3 more
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, 2018 为解决传统半导体压力传感器温度特性差、非线性度高等问题,设计一种基于双岛结构的多晶硅纳米薄膜压力传感器。利用有限元分析软件分析硅膜结构的应力分布规律,确定力敏电阻的最佳布局,进一步提高了传感器的灵敏度。这种压力传感器兼具温度特性好、灵敏度高、线性度好等综合性能。福建省科技厅引导性(重点)项目(2017H032);;莆田学院激光精密加工工程技术研究中心开放基金项目 ...
林振衡 +3 more
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Conservation Biology, EarlyView.Abstract Achieving global conservation policy goals requires the ability to set and measure progress toward science‐based targets for biodiversity. The species threat abatement and restoration (STAR) metric was developed to enable actors to set science‐based targets for species.
Louise Mair +17 more
wiley +1 more source
Biodiversity‐driven spatial conservation planning to delineate temporally stable regions
Conservation Biology, EarlyView.Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella +5 more
wiley +1 more source
Dianci bileiqi, 1980 本文研究了具有内部微观结构缺陷的瓷件在单轴向应力状态下强度的维布尔分布,给出δu=0情况下决定维布尔参数的一个图解方法。根据维布尔分布导出抗折瓷件在一定可靠性下极限应力下限值的计算公式,并比较了按维布尔分布和按正态分布计算的在相同可靠性下瓷件极限应力下限值的结果,结果表明按维布尔分布计算的下限位偏于安全。
马功勋, 刘长荣, 陶增炎
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Zhongshan Daxue xuebao. Yixue kexue ban, 2022 膝关节植入物常被用来替换膝关节受损组织，恢复膝关节的正常功能和关节内正常的应力分布。有限元分析（FEA）可利用有限的、相互连接的单元对膝关节植入物植入后的膝关节应力进行精准、快捷的计算，直观的展现植入物植入后的膝关节应力分布情况。本研究通过中国知网、Web of Science、PubMed等数据库调研FEA在膝关节植入物生物力学研究中应用的相关文献，以人工膝关节、人工半月板和前交叉韧带移植物为主体，阐述了通过FEA分析植入物在不同材料结构设置和植入条件下对术后膝关节应力分布的影响 ...
邵佳升, 宋剑
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Drivers of bat researchers’ intent to adopt field hygiene practices
Conservation Biology, EarlyView.Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman +6 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2013 为了考察国产Q460高强钢焊接H形柱的轴心受压力学性能,对6个已有焊接H形柱的轴心受压试验进行了数值分析。数值分析采用作者编制的数值积分法电算程序和通用有限元软件ANSYS。以考虑了实测初始挠度、初始偏心及简化残余应力分布的数值模型,计算Q460高强钢焊接H形柱轴心受压的极限承载力与荷载-挠度曲线。发现数值积分法与有限单元法所计算试件的荷载-挠度曲线基本重合。为了验证数值模型的准确性,将数值分析结果与已有试验结果进行对比;并通过对比简化残余应力分布模型与实测残余应力分布对试件极限承载力、荷载 ...
王彦博 +3 more
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Gaoya dianqi, 2020 电缆终端电场分布优化研究是海底电缆安全运行和试验迫切需要解决的问题,为提高其运行的安全性与可靠性,可对电缆终端电场分布进行优化。文中基于有限元法对海底电缆终端电场进行多物理场耦合研究分析,综合考虑终端实际运行环境及实际生产情况,采用电流—温度—电压仿真法对电缆主绝缘及应力锥绝缘部分材料进行优化分析,同时对应力锥金属部分曲率及应力锥金属与绝缘部分比例分配进行优化,寻求终端电场分布的最优化。结果表明:采用与电场、温度相关的非线性材料对终端电场分布很大改善,应力交界点电场强度降低幅度为25.83 ...
谢晨 +5 more
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