Results 51 to 60 of about 1,019,871 (171)
, 2023 针对低空高超飞行探索了高动压工况下超燃冲压发动机所面临的热防护问题，以相同来流总温和隔离段马赫数的燃烧室为例，采用尺度分析的方式估算了高动压工况相比于低动压工况发动机热防护设计的异同。主要结论包括：1）高动压工况下主动再生冷却对热沉要求更低，2）热壁材料应选择具有更高热应力屈服性能指数的材料，3）主动冷却流动拓扑可进行调整优化以降低压降。
程迪, 陆阳, 范学军
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Gaoya dianqi, 2011 1000kV电压互感器是实现特高压电网电能计量及电网保护的关键设备,中国特高压工程所采用的1000kV电压互感器均为自主研制,如用于敞开式变电站的柱式电容式电压互感器,用于GIS站的罐式电容式电压互感器、罐式电磁式电压互感器和电子式电压互感器等。为提高特高压电压互感器技术水平,总结研究经验,笔者介绍了适用于特高压敞开式变电站和特高压全封闭气体绝缘变电站（GIS）的1000kV电压互感器类型及原理,描述了中国特高压工程中1000kV电压互感器样机研制进展 ...
李璿, 王晓琪, 余春雨, 吴士普
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Balancing low iridium dosage and robust anodic stability remains a critical hurdle for practical proton exchange membrane water electrolysis (PEMWE). Although IrRuOx offers a cost‐effective alternative, current systems still suffer from the dual dilemma of excessive noble‐metal reliance and inadequate long‐term durability. Herein, we developed
Hang‐Xing Ren +10 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Lung cancer remains a major cause of cancer‐related mortality worldwide, and non‐small cell lung cancer (NSCLC) accounts for the largest proportion of diagnosed lung cancer cases. Exosomal programmed death‐ligand 1 (PD‐L1) has attracted increasing attention as a potential liquid‐biopsy biomarker associated with tumor immune regulation; however,
Chen Su +6 more
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Gaoya dianqi, 2009 综述了国内外特高压电力变压器交流耐压和局部放电试验装置的现状;以武汉高压研究院特高压试验基地1 000 kV变压器的试验数据为参考,提出了特高压电力变压器的交流耐压和局部放电的试验方法和试验电路。论述了装置中变频电源和高压电抗器的设计方法;进行了750 kV电压等级超高压电力变压器的交流耐压和局部放电试验,对试验数据进行了分析。试验结果证明了该试验装置及试验方法的合理性,同时表明该试验装置具有可靠性高、安全性好、实用性强的特点。
仇新艳 +4 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Photocatalytic hydrogen peroxide (H2O2) production from water and oxygen driven by solar energy represents a highly promising green and sustainable strategy. Herein, lignin‐derived carbon quantum dots (LCDs) were strategically introduced at the heterojunction between a Bi‐based metal organic framework (Bi‐MOF) and ZnIn2S4 (ZIS).
Wanpeng Sun +8 more
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Boosting Decomposition and Combustion of TKX‐50 and HTPB/TKX‐50 Propellants With NH2‐MIL‐88B(Fe) MOF
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Dihydroxylammonium 5,5′‐bistetrazole‐1,1′‐diolate (TKX‐50) is a promising energetic material that possesses both exceptional energy density and low sensitivity. Nevertheless, its application is hindered by incomplete pyrolysis during combustion or explosion. Various strategies, including eutectic formation, composite preparation, and catalysis,
Jingwen Chen +10 more
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Gaoya dianqi, 1990 ·机电部第七设计研究院的“平顶山高压开关厂高压试验室工程设计”获1989年国家优秀工程设计银质奖。 ·机电部第七设计研究院的“沈阳高压开关厂虎石台网络试验站增容技术改造工程设计”获1989年国家优秀工程设计银质奖。 ·1990年我国高压电器产品计划安排:高压断路器78270台,柱上油开关12000台,高压负荷开关6450台,高压隔离开关139645组,高压熔断器5787万只,高压接触器1220台,高压开关柜71830面。
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Linchuang shenzangbing zazhi, 2018 高血压是慢性肾脏病（CKD）常见的并发症,在估算小球滤过率低于60 ml·min-1·（1.73 m2）-1的患者中,高血压的发病率为82%,而在终末期肾病（ESRD）患者中高血压的发病率高达92%[1]。高血压促进CKD的进展及心血管并发症的发生发展,导致疾病加速进展。在CKD基础上发生高血压的患者与原发性高血压相比,血压的变异大、节律易发生改变,易发生难治性高血压 ...
王文苓, 蔡广研
doaj
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Non‐noble metal oxygen electrocatalysts are essential for low‐cost rechargeable metal‐air batteries and fuel cells, determining their energy conversion efficiency. However, such electrocatalysts are limited by inadequate bifunctional activity and stability toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER).
Lixin Sun +14 more
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