Results 21 to 30 of about 18,935 (224)
Rare Metals, EarlyView.ABSTRACT With the rapid development of the energy storage industry, aqueous zinc‐ion batteries (AZIBs) have attracted considerable attention in the field of energy storage because of their inherent advantages, thereby emerging as a promising research direction with significant potential.
Lingjiao Fu +8 more
wiley +1 more source
Rare Metals, EarlyView.ABSTRACT The transformative potential of gallium nitride high electron mobility transistors (GaN HEMTs) in advancing carbon‐neutral power systems remains bottlenecked by contact resistance (Rc) at the metal–semiconductor (M‐S) interface, a critical determinant of switching losses and frequency response.
Ji‐Zhou Zhang +8 more
wiley +1 more source
Engineering 2D Materials for High‐Current‐Density Electrocatalytic Water Splitting
Rare Metals, EarlyView.ABSTRACT Water electrolysis is a key method for sustainable hydrogen production, using water as an abundant resource. However, efficient and stable operation at high current densities remains challenging due to energy losses, catalyst degradation, and limited ion–electron transport.
Tianqi Guan +8 more
wiley +1 more source
Dianci bileiqi, 1985 通过对氧化锌电阻片承受短时过电压作用时的电气特性、能量吸收能力特性的研究,对氧化锌电阻片耐受短时过电压能力的评定方法提出讨论。对用变压器进行氧化锌电阻片短时过电压耐受能力试验出现残压波形畸变时,提出用等能量进行耐受时间等价性处理的办法。
李淑芳
doaj
Jianzhu Gangjiegou Jinzhan, 2023 将海水海砂混凝土填入涂塑钢管，利用内涂塑层防止氯盐腐蚀钢管，可实现海水海砂混凝土在结构工程中的合理利用，但涂塑层对组合构件力学性能的影响尚不明确。为探究涂塑钢管海水海砂混凝土构件的受弯性能，明晰涂塑层对构件承载变形能力的影响，进行了12根试件的弯曲加载试验，主要参数为海水海砂混凝土强度。研究结果表明，涂塑层对受弯构件破坏形态和受力性能的影响不显著。涂塑钢管海水海砂混凝土受弯构件的破坏形态与传统钢管混凝土的破坏形态相似，均为钢管受压区发生压曲、受拉区达到屈服，核心混凝土产生均匀分布的多条裂缝 ...
叶勇, 姜航, 余林康
doaj
Numerical Simulation Analysis of Steel Reinforced Concrete Mega-Columns [PDF]
, 2014 现代高层建筑发展的趋势是不断出现超高层和巨高层建筑（megatall）。由于巨型结构体系不仅满足建筑在高度上的要求，同时满足了大空间、大开口的特殊使用需要，所以在超高层和巨高层建筑中被广泛采用。巨型柱作为巨型结构体系中主要的竖向与水平受力构件，其受力性能的不同表现将影响巨型结构的整体效应。巨型柱按材料可划分为：①钢筋混凝土巨型柱；②型钢混凝土(SRC)巨型柱；③钢管混凝土巨型柱；④钢巨型柱。本文以矩形截面的SRC巨型柱为研究对象，通过有限元数值模拟对其受力性能进行分析，并提出关于巨型柱的一些设计建议 ...
颜家胜
core
Smart Biomaterials and Dressings for the Treatment of Chronic Inflammatory Skin Diseases
Rare Metals, EarlyView.ABSTRACT Chronic inflammatory skin diseases, encompassing immune‐inflammatory conditions and infection‐associated dermatoses, pose significant clinical challenges due to high prevalence, recurrence, and therapeutic resistance, affect over 30% of the global population.
Zehao Lan +5 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2013 目的观察双侧迷路破坏对压力感受性反射敏感性的影响。方法清洁级雄性大鼠40只,随机分为正常组、手术组和假手术组。手术组和假手术组又进一步分为双侧迷路破坏组（bilateral labyrinthectomy,BL）和压力感受性反射去除组（sinoaortic denervation,SAD）。通过静脉灌流苯肾上腺素（phenylephrine,PE）和硝普钠（sodium nitro-prusside,SNP）观察压力感受性反射敏感性的变化。结果 （1）BL不影响PE所诱发的压力感受性反射敏感性 ...
兰艳 +5 more
doaj
Researches on Cooperative Work Mechanism and Design Method of Reinforced Concrete Main-beam-Sub-beam-Slab Structure [PDF]
, 2009 按照“边支承板”的观念设计钢筋混凝土主梁-次梁-板结构，无法体现主梁-次梁-板之间的协同工作特点，导致结构分析内力的分布（特别是楼板内力）与结构实际内力分布有较大差异。因此，揭示“边支承板”设计理论存在的问题，研究钢筋混凝土主梁-次梁-板结构协同工作机理，完善其内力分析方法，是工程界较为关心的问题之一。本研究采用大型有限元软件ANSYS提供的SOLID65单元和LINK8单元，探讨并建立了符合钢筋混凝土梁板结构特点的非线性有限元模型，并通过与文献[]模型试验数据的对比分析表明，选择合适的计算分析参数 ...
吴飚
core
Rare Metals, EarlyView.ABSTRACT The development of high‐performance electromagnetic protection materials integrating broadband absorption and effective shielding capabilities is hindered by challenges in simultaneously optimizing multiple electromagnetic properties through conventional material designs.
Changlong Du +9 more
wiley +1 more source