Results 21 to 30 of about 489,288 (151)
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT High‐strength aluminum (Al) alloys are usually unprintable by laser powder bed fusion (LPBF) due to the severe hot cracking along the columnar grains. Doping elements scandium (Sc) and/or zirconium (Zr) is an effective way to eliminate hot cracks by refining the grain size to nearly nanoscale levels.
Zehuan Zhang +15 more
wiley +1 more source
Gaoya dianqi, 2018 介绍了一起220 kV GIS设备出线管母发热异常的分析处理过程。通过对红外测温、局放特高频检测、局放超声波检测、SF6成分检测等结果的分析,认为触头接触不良是导致发热异常的主要原因。经解体检查,发现导电杆与触指间存在明显刮痕,出线管母安装工艺不良导致电流不能均匀流过触指,从而引起发热异常。该起案例表明仅仅通过传统的回路电阻测试并不一定能有效发现接触不良缺陷,需结合其他检测手段进行综合评估。该次GIS设备异常的处理经验,为今后类似异常的处理分析提供借鉴与参考。
何良 +5 more
doaj
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Semiconductor photocatalysis represents a pivotal frontier in the quest for sustainable energy and environmental remediation. Among the diverse catalytic materials, Bismuth Oxychloride (BiOCl) has emerged as a particularly promising candidate due to its unique layered structure, featuring [Bi2O2]2+ layers intertwined with halogen ions, which ...
Liu Han +5 more
wiley +1 more source
, 2011 <正>针对高超声速飞行环境中的预加载结构在局部异常热负荷作用下的完整性问题,描述了同时考虑气动加热和局部异常热流双重热负荷作用时的平板温度场;建立了预加载平板结构的热-弹塑性力学模型 ...
黄晨光, 吴臣武, 程欣欣
core +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Lung cancer is one of the most common and deadly malignancies worldwide. Although immune checkpoint inhibitors, including PD‐1/PD‐L1 blockers, have benefited a subset of patients, response rates remain limited, and recurrence is frequent because of the immunosuppressive tumor microenvironment (TME), characterized by hypoxia and dysregulated ...
Yi Ma +6 more
wiley +1 more source
Gaoya dianqi, 2020 高压隔离开关异常发热一直是电力系统当中长期存在的安全隐患,系统研究其异常发热现象并采取一定的技术手段对其进行实时监测具有重要意义。文中以GW6B-252型高压隔离开关为例,通过有限元数值仿真模拟探究了不同接触电阻、不同负载电流及不同镀层材料等3种因素对隔离开关异常发热的影响,在此基础上,通过实验获取了不同接触压力、污秽程度、蚀点程度、镀层材料、负载电流作用下隔离开关稳态热点温升的分布特性。对比分析仿真与实验结果,提出了不同影响因素对隔离开关热点温升的影响程度或表现形式不同的结论 ...
贾勇勇 +4 more
doaj
考虑配电网与电化学储能交互耦合关系的异常运行状态预警方法 [PDF]
全球能源互联网配电网稳定性直接关系到终端用户侧储能的运行质量。针对配电网异常运行场景下用户侧储能系统的安全问题，提出了一种热失控预警方法。该方法通过确立从配电网异常状态到用户侧储能的完整传导路径，识别了锂离子电池热失控的关键特征量，包括异常电流值/电压值和异常状态持续时长。进而建立了用户侧储能的状态演化模型，分析了这些特征量对储能安全运行状态的影响。仿真结果揭示了不同异常电气量变化对储能安全的具体影响，如异常电流值/电压值与储能异常温度的高正相关性，以及异常状态持续时长的强正相关性。基于此 ...
范培潇 +6 more
doaj +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Diabetic wound infections are a common complication of diabetes, which severely impact patients' quality of life. Effective treatment of diabetic wound infections remains one major challenge in the clinic, partially due to the formation of bacterial biofilm and antibiotic resistance.
Liang Zhou +8 more
wiley +1 more source
Gaoya dianqi, 2019 随着GIS在各级电网的广泛应用,运行中的各类缺陷也随之增加,其中外部导流排异常发热是一种较为常见的问题,外部环流是该类问题发生的先决条件。文中结合红外测温发现的几起异常发热实例,分析了缺陷原因并提出处理措施,为该类问题的分析提供借鉴和技术支撑。
宋东波 +5 more
doaj
Success of restoration strategies in preventing extirpation of 2 critically endangered coral species
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract An unprecedented marine heatwave in 2023 caused widespread coral bleaching and mortality throughout the Caribbean. In the Florida Keys (USA), 2 foundation species, elkhorn coral (Acropora palmata) and staghorn coral (Acropora cervicornis), were severely affected.
Erinn M. Muller +29 more
wiley +1 more source