Results 21 to 30 of about 183,032 (146)
利用主-被动源面波联合探测郯庐断裂带内安丘—莒县断裂的浅部构造特征
Dizhen xuebao郯庐断裂带安丘—莒县断裂（编号F5）为全新世活动断裂，本文通过主-被动源面波联合勘探技术，以同排列方式采集主、被动源面波信号，利用叠加频散能量谱拓宽面波观测频带，结合遗传算法反演获取探测区域内的二维 S 波速度结构，进而探究该断裂的浅部构造特征。结果表明：探测区地壳介质横向非均匀性显著，S 波速度结构呈现明显分段特征，在测线110，160和640 m处分别识别出断点F5-1-1，F5-1及F5-2。其中F5-1和F5-2为F5 断裂的两条边界断裂，呈相向倾斜的断陷构造形态，破碎带宽度达 330 m。此外，
Yunze Liu +6 more
doaj +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
, 1986 Ⅰ.前言 由于灾难性工程断裂事故时有发生,工程结构安全性评定引起人们的极大关注。1982年美国Battelle实验室在关于断裂损失的首次综合考察中提出,材料的断裂以及为防止这类破坏所作的努力,使美国工业每年耗费达1190亿美元,相当于国家总产值的4％。但在不增加断裂危险情况下,加强检查、维护和修理,约有29％的断裂耗费可以避免。利用断裂力学的研究成果改进材料制造工艺和加强焊接过程的质量控制,可使每年耗费再减少24％。
李英治, 柳春图
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Dizhen xuebao, 2021 2013年2月19日四川省绵阳市三台县发生MS4.7地震，震中位于四川盆地中部基底断裂绵阳—三台—大足断裂与蒲江—三台—巴中断裂的交会区域。基于地震目录、震相报告和波形等资料，对地震序列进行重定位，采用近远震联合波形反演求解主震震源机制，结合野外地质调查对该地震的发震构造进行分析。余震序列重定位的空间展布方向为NW-SE向，与节面Ⅰ走向吻合，认为此次地震发震断裂走向为NW−SE，倾向为NE，且破裂面近于直立，发震断层在近NS向的近水平挤压应力作用下作右旋走滑错动。实地调查中未见地表破裂及地表断层行迹 ...
Suihai Liu +4 more
doaj +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
wiley +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以云南区域GNSS速度场为约束，采用克里金插值方法分时段估计了1999—2007年、2009—2014年和2015—2020年这三期的区域应变率场，获取了滇东南弧形构造带现今区域的形变演化特征；然后利用GNSS剖面方法计算了红河断裂带中南段、石屏—建水断裂带和曲江断裂的滑动速率；最后利用研究区域内现有的GNSS连续观测资料，构建了五组分别跨红河断裂带中段、红河断裂带南段、石屏—建水断裂、曲江断裂和小江断裂带中南段区域的地块，获取其应变时序，并基于此分析了相关断裂现今的运动特征 ...
Lingli Wang +5 more
doaj +1 more source
Gaoya dianqi, 2021 针对一起500 kV断路器弹簧机构储能过程中储能轴断裂事故,对断裂部件进行了理化检验,明确了储能轴断裂并非该部件的质量原因。通过对断路器解体,分析断路器储能过程机构的工作原理,发现储能凸轮和顶杆啮合不足,导致合闸弹簧在无负载的情况下带动储能轴"反打",是造成储能轴断裂的原因。
焦宗寒, 郑欣, 杨迎春, 代克顺
doaj
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
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Lignin hydrogenolysis is a promising route to separable aromatic monomers, yet practical upgrading is still hindered by macromolecular mass‐transfer limitations and the aggregation/deactivation of metal sites. Herein, we propose a “dual‐confinement” strategy to construct ultrafine Ru nanoclusters supported on lignin‐based N‐doped hierarchical ...
Tianjin Li +11 more
wiley +1 more source