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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Constructing a porous scaffold with the essential features of natural cancellous bone, including structural architecture and biochemical cues, is one of the pivotal factors for effective bone regeneration. In this study, a biomimetic composite porous Gelatin fibrous scaffold (SrHA/Gelatin) incorporating ultralong strontium‐doped hydroxyapatite
Yin‐Chuan Wang +8 more
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Guangtongxin yanjiu, 2012 为解决光缆机械特性监测盲区,防止因机械性能劣化而产生的故障隐患,对光缆中光纤余长理论和BOTDA（布里渊光时域分析仪）、OTDR（光时域反射仪）监测原理进行研究。采用BOTDA监测技术,对光缆中光纤的应变进行了监测实验。结合理论分析,得出光纤应变随光缆的应力应变及机械特性变化的关系,能够对光缆机械性能劣化起到预警作用,防患于未然。
滕玲 +4 more
doaj
Gaoya dianqi, 2020 热塑性材料基于材料性能高、环保性好和成型工艺简单等优点,逐渐成为行业内积极研究用于取代环氧树脂的新型绝缘材料之一。目前国内外尚未针对应用于高压电器绝缘件制造的热塑性材料形成体系性的技术要求。文中选择了4种玻纤增强热塑性材料,从机械性能、电学性能和热学性能三方面与环氧树脂进行对比,同时研究玻纤在塑料注射成型中的取向和吸水性对材料性能的影响。结果表明,热塑性材料具有良好的机械、电学和热学性能,随着玻纤取向的增大,机械性能不断降低。为热塑性材料在高压电器设备中的应用提供技术基础。
谢雷钢, 张骁萌, 闵超
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Proton exchange membrane fuel cells (PEMFCs) require advanced bipolar plate coatings to enhance efficiency, durability, and commercialization potential. This review presents a systematic framework for evaluating and designing bipolar plate coatings, integrating material selection, performance metrics, deposition techniques, and future ...
Shijie Li +12 more
wiley +1 more source
Gaoya dianqi, 2015 复合绝缘子在中国已有20多年的运行历史,笔者针对中国18个省市运行年限在5-21 a的复合绝缘子的抽样检测情况,统计分析了复合绝缘子机械、电气性能与配方和运行环境及年限的关系。结果表明,复合绝缘子的电气性能与生产工艺有关,与运行时间无关,机械性能具有一定分散性,早期楔式结构试品的机械性能有所下降。
巢亚锋, 王成, 黄福勇, 周卫华
doaj
Interface Issues of Inorganic Solid‐State Electrolytes in Secondary Magnesium Batteries
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Solid‐state magnesium batteries (SSMBs) have gained significant attention as promising candidates for next‐generation safe energy storage systems because of the abundance of magnesium (Mg) in the earth's crust, superior energy density, and inherent nonflammability.
Jiren Wang +9 more
wiley +1 more source
Gaoya dianqi, 2023 真空断路器机械特性试验是配电网安全稳定运行的重要保证，传统的人工试验方式由于劳动强度大、效率低且试验质量难以保证，已不能满足配电网发展的需求。针对这一问题，文中开展了基于激光位移传感器的真空断路器机械特性机器人试验平台的研究。结合机器人试验平台的实际情况，提出了利用激光位移传感器实现真空断路器行程测量的方法；分析了激光和滑线电阻位移传感器在真空断路器机械特性测试的异同性，研究并解释了滑线电阻位移传感器的万向接头间隙对真空断路器分闸反弹幅值测试的影响机理 ...
王俊波 +5 more
doaj
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Porous NiTi alloys are widely used in biomedical and engineering fields. Using the PBF‐LB technique, the TPMS and Voronoi porous parts with a porosity of ∼67% and a minimum feature size of 0.15 ± 0.02 mm were fabricated. Although the bulk sample fabricated with the same parameters is defect‐free, μ‐CT reconstruction on the porous sample ...
Wen‐Hao Zeng +7 more
wiley +1 more source
, 2018 机械臂的可达性描述机械臂末端到达六维工作空间的能力,了解机械臂的可达性分布,有助于更好地完成机械臂操作任务。本文对七自由度机械臂kuka-iiwa7进行可达性分析,为了计算该机械臂的可达性需预先解决两个关键问题,首先是六维工作空间划分问题,本文使用等分划分SE(3)的方法对整个六维工作空间进行划分。其次是该机械臂逆运动学求解问题,在考虑关节极限的情况下,本文提出使用关节角为冗余参数结合冗余机械臂的自运动来判断给定的机械臂的末端姿态是否存在满足关节限位的可行逆解,从而解决逆解求解问题 ...
刘清华, 王冲冲, 陈庆盈
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