Results 11 to 20 of about 718,562 (150)
Auto-focus technology and its application based on image processing [PDF]
, 2009 Auto-focusing technique is an important method to improve the precision,intelligentization,automatization for the indentation diameter measurement.The paper introduces an auto-focus method of indentation diameter measurement based on image processing ...
Chen, Xiaomei, Yang, Tao, Zuo, Yong
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, 2022 单位载荷法是一种求解位移的通用方法，在材料力学能量方法中占据重要地位。使用虚位移模式表述单位载荷方法时，满足位移边界条件是虚位移的主要限制条件。在静不定问题、特别是带有自由边界条件单位载荷系统构造时，对于该限制条件的理解决定了使用单位载荷方法的灵活性。本文使用几个经典例题剖析该限制条件的作用 ...
陈伟民, 李依伦, 李敏
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Intact coastal nursery rearing amid climate‐driven phenological shifts in threatened salmon
Conservation Biology, EarlyView.Abstract Literature linking phenology to climate has proliferated in recent decades and shows that climate change has reorganized seasonal opportunities worldwide. However, this literature often quantifies changes in point measures of timing (e.g., beginnings and peaks) without context about duration (e.g., rearing season length) or performance (e.g ...
Stuart H. Munsch +8 more
wiley +1 more source
, 2014 本发明公开一种监测滑坡滑动面位移变形的装置及方法，其中，所述装置包括位于地下的测斜管和位于测斜管内部的一个以上的倾角传感器，所述装置还包括与每个倾角传感器一一对应的大变形测量系统；所述大变形测量系统包括钢丝绳、滑轮、编码传感器和重锤；其中，所述钢丝绳的一端与所对应的倾角传感器位于同一测深位置，所述钢丝绳绕过位于支架上的滑轮，其另一端连接所述重锤；所述编码传感器固定在所述滑轮的中心。本发明针对现有滑坡钻孔测斜侧位移的不足，提供了一种造价相对低廉、能够监测描述滑坡滑动面从变形到失稳整个过程的自动化监测设备 ...
李世海, 侯岳峰
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Studies on classroom interactions suggest that displaying affiliation through linguistic and multimodal resources could promote positive emotions like enjoyment, thereby enhancing engagement and enthusiasm in second/foreign language learning.
Karen C. K. Choi, Kevin W. H. Tai
wiley +1 more source
Resource Substitution: Local Governments' Issue Attention and Policy Reinvention
Policy Studies Journal, EarlyView.ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
wiley +1 more source
Gaoya dianqi, 2020 为保障进行±800 kV输电线路带电作业人员的人身安全,对带电作业人员电位转移特性的研究有助于制定合适的安全防护措施。通过建立作业人员进行电位转移过程中基于流体动力学的棒—板间隙放电模型,仿真得到了人与导线间的空气间隙电场强度变化特性,计算了转移过程中的暂态能量,分析了转移距离为0.3～0.6 m时电位转移能量数值的分布特点。结果表明,不同转移距离下的转移能量均在1.0 J附近,随着转移距离的增大,转移能量有所增加,而转移能量高于1.0 J时,导电手套存在被烧蚀的风险,因此作业人员进行±800 ...
李智琦 +5 more
doaj
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT The deformation behavior of NiTiNb shape memory alloys is governed by microstructural heterogeneity, specifically the interconnected topology of the β‐Nb phase. The regulatory role of the eutectic structure in load partitioning and the evolution of deformation mechanisms, particularly in high‐Nb systems, has not been clearly understood.
Qingda Zhang +11 more
wiley +1 more source
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Surface‐enhanced Raman scattering (SERS) has emerged as a highly sensitive and specific technique for tumor imaging, owing to its narrow spectral features, resistance to photobleaching, and capability for multiplexed detection. However, its clinical translation remains limited by poor tissue penetration and the absence of intrinsic anatomical ...
Xinyu Miao +7 more
wiley +1 more source
, 2009 基于Cornell地表地震动的概率方法,提出发震断层未来地震引起地表永久位移的概率分析方法,其中断层模型、地震发生模型、震级与破裂面的长度、宽度、地表位移之间关系的参数采用物探结果、震源运动学反演、历史地震资料、现场考察及测年确定。主要技术有2点:(1)概率分析场点地震动是场点周围断层所有潜在地震的贡献,而场点的地表永久位移仅是该断层的贡献;(2)场点所在断层发生的所有地震对场点的地震动均有贡献,而场点所在断层发生的少数地震才能对场点永久位移有贡献。应用提出的方法 ...
赵纪生, 周正华
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