Results 21 to 30 of about 1,155,773 (168)
Gongye shui chuli, 1996 在对三相流化床除二氧化碳器小型模拟设备（Φ100mm）进行流体力学性能和传质、传热性能研究的基础上，将其放大到用于工程的三相流化床除二氧化碳器（Φ650mm），通过试验，对其进行了流体力学性能和传质性能的研究。用数理统计的方法得出各流体力学性能和传质性能的数学模型。
董学德, 李绍箕
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Atom Probe Tomography‐Based Analysis of Residual Trace Elements in Advanced Metallic Materials
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Residual trace elements inherited from raw materials strongly influence the mechanical and environmental performance of advanced metallic alloys and recycling materials due to preferable boundary/interface segregation and resultant embrittlement effects, yet their parts per million level concentrations pose significant challenges to ...
Congcong Li +17 more
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Gaoya dianqi, 2021 能够快速开断大电流的高压直流断路器是影响直流输电的关键因素之一。提出一种自适应电容调压式高压直流断路器设计方案,通过并联调压电容实现电弧电流的反转,形成多个电流过零点,并在一定时间内将电弧电流限制在零点附近,为灭弧创造良好条件。理论推导和仿真结果表明提出的高压直流断路器方案能够适应不同运行工况,避免电力电子器件的通态损耗,有效减小电弧重燃几率,提高断路器的快速分断能力。
张增强, 解超, 陈伟伟, 辛超山
doaj
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT With high theoretical capacity and low cost, bismuth sulfide (Bi2S3) demonstrates considerable potential as an anode for sodium/potassium‐ion batteries (SIBs/PIBs). Unfortunately, significant volume variation, low electrical conductivity, and dissolution of polysulfides drastically weaken their intrinsic merits.
Fuyu Xiao +11 more
wiley +1 more source
Dianci bileiqi, 1985 对金属氧化物避雷器的过电压通流能力和热稳定性能进行了实验研究。已经发现,对不同峰值和持续时间的操作过电压和暂态过电压的击穿能量大致相同。对84千伏瓷套式避雷器试样的散热能力进行了试验,发现其散热能力小于小型模拟元件的散热能力,其数值关系在前所发表的文章中已讨论过。根据这些试验数据发现,运行电压高低的极限不是由通流能力决定,而是由热稳定性能所决定。
佐藤, 张雨时
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Shuitu Baochi Xuebao, 2021 为探究高寒土坡面细沟侵蚀过程机理，建立科学的坡面细沟输沙能力因子模型，服务高寒坡面水土流失治理工作，以藏东南高寒土壤为研究对象，采用室内径流放水冲刷试验，探讨不同流量和坡度条件下细沟水流输沙能力特征。结果表明：（1）高寒土坡面细沟水流输沙能力的临界坡长随输沙能力的增加而变短，范围为3.27~8.31 m；坡度在15°~25°时，临界坡长大约稳定在5.0 m；（2）不同坡度下，高寒土细沟水流输沙能力与流量表现为明显的线性正相关关系（Tc=Aq）；小坡度的输沙能力受流量的影响程度大于大坡度；（3 ...
喻武 +5 more
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Intelligent Material Framework for Data Mining and Performance Prediction of Invar Alloy
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Invar alloys exhibit a low coefficient of thermal expansion (CTE) over a wide temperature range and are regarded as critical materials for precision engineering and aerospace applications. In this work, an integrated OLR‐IMF (an intelligent material framework based on optical character recognition [OCR], large language models [LLMs], and ...
Tongbo Jiang +11 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Platinum (Pt) single‐atom catalyst (SAC) shows great promise for hydrogen evolution reaction (HER), but faces a huge challenge in activity enhancement due to the isolated single‐atom sites. Fabricating support with partially amorphous (pa) structures to realize the synergetic interaction in neighboring single atoms could facilitate H2O ...
Yanhui Song +9 more
wiley +1 more source
Gaoya dianqi, 2015 为了明确SF6气体绝缘金属封闭开关设备（以下简称GIS）外壳通流能力对母线法兰结构设计的要求,综合分析了影响外壳法兰设计的各种因素,着重分析了外壳法兰的密封结构和GIS设备外壳法兰的通流能力之间的关系。通过试验验证和计算分析,论证了合理的外壳法兰设计结构可以在满足壳密封性能的同时,利用法兰连接面保证GIS对通流性能的要求。
南方
doaj
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Te‐free BiSbSe3 is a promising medium‐temperature thermoelectric (TE) material owing to its cost‐effectiveness and intrinsically low lattice thermal conductivity. However, its comparatively low electrical conductivity has severely hindered the optimization of TE performance.
Xiaowei Shi +10 more
wiley +1 more source