Results 71 to 80 of about 576,243 (160)
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Biomass‐based hydrogels are widely regarded as ideal substrates for self‐powered wearable sensors. However, the practical applications of hydrogels are commonly limited by their inherent low strength and toughness, which restrict their capacity to withstand repeated stretching, bending and other mechanical loads arising from human motion in ...
Boyu Du +9 more
wiley +1 more source
A model test of the deformed anti-sliding pile repaired by root piles in a soil landslide
工程科学与技术为了研究树根桩修复变形抗滑桩的工程力学特性，设计了2类修复方式的树根桩修复土质滑坡变形抗滑桩的对比试验模型，一类是树根桩与变形抗滑桩采用桩顶横梁方式连接，简称PCR修复方式，另外一类是树根桩与变形抗滑桩相互独立不连接，即PR修复方式。通过对比模型试验，研究了PCR和PR两种修复方式下的树根桩-抗滑桩变形破坏模式，分析了变形抗滑桩桩身受力、树根桩轴力和桩后土压力分布特征。研究发现，采用PCR和PR两种方式均可修复变形抗滑桩，PCR修复方式在控制桩顶位移和抑制桩顶位移变化速率上均优于PR修复方式 ...
LIU Zhongshuai, ZHOU Yuntao
doaj
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Laser‐directed energy deposition (L‐DED) offers a flexible route for fabricating γ‐TiAl components, but the as‐deposited microstructure requires post‐processing to overcome limited deformation capability. Here, an L‐DED Ti–48Al–2Cr–2Nb alloy was subjected to solution and solution‐aging treatments.
Mengya Chu +6 more
wiley +1 more source
Shiyou jixie, 2012 石油钻井工具常使用非标碟形弹簧缓冲振动，基于大变形弹塑性理论，使用有限元法分析了Φ118 mm非标碟簧在加载过程中的力学特性。分析结果表明，随碟簧压缩位移增加，Von Mises应力、周向应力、轴向应力、轴向变形量、周向变形量和厚度t轴向变形量呈非线性增大趋势。压缩位移小于2.5 mm时，碟簧未出现塑性变形；压缩位移为2.5 mm时，周向应力、轴向应力、轴向变形量和厚度t轴向变形量剧增，且碟簧发生塑性变形。对碟簧进行了刚度试验，压缩位移小于0.47 mm时碟簧刚度约为0.66 kN/mm，压缩位移大于0.
祝效华 +5 more
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Bézier curves with multi-shape-parameters(带多个形状参数的Bézier曲线)
Zhejiang Daxue xuebao. Lixue ban, 2010 基于Bézier曲线升阶的思想,构造了带多个形状参数的Bézier曲线,它具有与Bézier曲线相同的性质.在控制顶点不变的情况下,可通过改变多个形状参数的取值调整曲线的形状.n次Bézier曲线是n次带多个形状参数的Bézier曲线的一个特例,多个形状参数可使曲线变化更灵活.
RIKwang-un(李光云)
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Bimetallic structures fabricated by laser powder bed fusion (LPBF) provide an effective strategy for achieving multifunctional integration, yet interfacial structural continuity and the role of lattice defects remain insufficiently understood.
Jinguo Ge, Shuo Yin
wiley +1 more source
Gaoya dianqi, 2020 目前变压器绕组应变监测主要分为离线检测和在线检测,由于受现场复杂电磁环境的干扰,在线检测并未得到广泛应用,离线检测虽技术较为成熟,但无法准确判断绕组应变形式。基于以上问题,文中提出了基于分布式光纤传感的变压器绕组应变检测方法,并提出了基于S变换和极限学习机（ELM）的绕组应变识别方法。首先模拟变压器运行过程中绕组可能出现的变形形式,采集相应的布里渊频移;然后通过S变换对应变信号进行时频分析,提取变换后的时频特征量作为神经网络的输入样本,采用极限学习机（ELM）进行训练识别。实验分析表明 ...
刘云鹏, 步雅楠, 贺鹏, 田源
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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