Results 31 to 40 of about 183,314 (146)
, 1986 Ⅰ.引言 韧性断裂是合金材料失效的主要形式之一。早在19世纪下半叶,有人就开始注意到金属材料的韧性断裂是通过内部颈缩而发生的。本世纪50年代,Puttick通过一系列实验和分析,提出了韧性断裂的机制是由于在材料内部的夹杂物上形成孔洞。随后,越来越多的实验事实表明,合金材料的韧性断裂是在材料里的第二相粒子(夹杂物)上形成孔洞,随后孔洞生长、汇合这样一个过程。50年代以来,位错理论的发展,电子显微镜的诞生 ...
洪友士
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Predictive evolutionary genomics: principles, validation, and practice
New Phytologist, Volume 252, Issue 1, Page 36-48, October 2026.Summary Climate change and habitat loss are driving rapid evolutionary responses in populations world‐wide, which creates an urgent need for evolutionary forecasting in conservation and agriculture. Such forecasting can be categorized into three time scales: trait‐based models that use multivariate quantitative genetic equations to project correlated ...
Daniel Ortiz‐Barrientos +5 more
wiley +1 more source
Ni‐Induced Interface Refinement Enhances Strength‐Ductility Synergy in LPBF‐Processed Ti‐Mo‐Ni Alloy
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Microstructural refinement is a common strategy for strengthening additively manufactured titanium alloys because it promotes phase nucleation. Reducing the α/β interfacial formation energy is an effective way to increase the nucleation rate.
An Li +6 more
wiley +1 more source
Metal‐Filamentary Memristor‐Based Artificial Neurons for Embodied Neuromorphic Intelligence
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Embodied neuromorphic intelligence represents a transformative paradigm for next‐generation intelligent systems, with broad implications for robotics, autonomous driving, intelligent manufacturing, and smart infrastructures. Neuromorphic chips enable bioinspired computing with sparse, heterogeneous representations and spatiotemporal dynamics ...
Tianci Huang, Zuqing Yuan, Qilin Hua
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Dizhen xuebao曲江断裂带位于川滇地块东南缘，自摆依寨出发，止于小江断裂带南段，是1970年MS7.7通海大地震的发震断层。为深入认识该断裂带的结构特征，本文基于密集线性台阵记录的远震P波走时延迟，对其低速体的边界与宽度进行探测。首先，利用不同判据从观测获得的远震走时延迟形态中识别断裂带低速体的可能边界与宽度；随后，采用远震QSSP-CGFD3D混合计算方法，通过远震波形模拟对结果进行评估。研究结果表明，基于远震走时延迟突增的位置能够较为准确地识别断裂带的边界。在实际应用中 ...
Hongtao¹ Gao +3 more
doaj +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Conductive hydrogels show great potential in flexible electronics and biomedical devices, yet their practical applications are often hindered by insufficient mechanical strength, poor environmental stability, and limited functionality. To address these challenges, this study has developed a hydrogel platform that integrates diagnosis and ...
Wei Jiang +9 more
wiley +1 more source
Dizhen xuebao, 2021 利用远震资料、近场强震资料和合成孔径雷达干涉同震形变资料确定了2017年8月9日精河MS6.6地震的断层面参数及震源破裂细节。为得到可靠的断层几何参数，发展了一套基于InSAR数据滑动分布反演的三维格点搜索流程，对本次地震断层面的走向、倾角和震源深度进行了格点搜索。结果显示，地震断层面走向为95°，倾角为47°，震源深度为14 km。基于搜索得到的断层模型进行破裂过程联合反演的结果显示：精河MS6.6地震为一次单侧破裂事件，最大滑动量约为0.8 m，滑动区域集中在断层面上震源以西5—15 km ...
Pingchuan Wang, Yong Zhang, Wanpeng Feng
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT With the rapid development of flexible electronics, there is an increasing demand for hydrogel‐based sensors with rapid fabrication, robust mechanical performance, and stable sensing behavior. Herein, a green and ultrafast self‐catalytic strategy is developed to fabricate a multifunctional hydrogel based on tannic acid‐coated cellulose ...
Jin Qian +6 more
wiley +1 more source
, 1998 不论是材料的断裂强度还是结构的承载能力均存在着明显的“尺度效应”。该文旨在总结断裂力学中的相似方法、无量纲数及其断裂力学中有关的尺度率 ...
赵亚溥
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