Results 131 to 140 of about 32,188 (207)
Dianci bileiqi, 1982 一、前言众所周知,瓷体中的铁杂质不仅影响瓷坯的外观质量,而且影响瓷的机电性能。影响的程度不只与铁杂质的含量有关,更重要的是与所形成的铁点尺寸有很大关系。一个产品上只要有一个直径大于0.5毫米的铁点,就会使产品报废或使其机电性能大大下降。泥料中混入铁杂质的原因很多,除了原料中含铁外,粗大的铁杂质主要是在生产过程中混入的,如练泥机磨损,设备掉锈片,
王琪
doaj
Paisagem é uma paisagem é uma paisagem é uma paisagem
, 2013 O presente artigo pretende identificar uma certa ideia de paisagem num ponto específico da obra de João Jacinto, ponto esse onde a presença da paisagem será, porventura, menos evidente. Pelo caminho, tecemos algumas considerações sobre as possibilidades da pintura contemporânea, a relação desta com a imagem digital e com a sua rica tradição.
openaire +1 more source
Gaoya dianqi, 2003 变压器铁心绝缘故障在变压器故障中占有相当大的比例。笔者对变压器铁心接地原理、铁心接地故障的诊断,采用直流冲击放电法处理240MVA变压器铁心接地故障实例作了介绍。
邹兵, 李长山, 黄金亮
doaj
Zhongshan Daxue xuebao. Yixue kexue ban铁与高血压的关系近年来已成为心血管领域的重要前沿方向。铁死亡（ferroptosis）作为近年发现的一种铁依赖性细胞死亡形式，已被证实在多数心血管疾病及其相关疾病的发生发展中扮演着十分重要的角色。铁死亡的核心机制涉及铁代谢紊乱、脂质过氧化反应以及抗氧化系统的损伤，这些机制在高血压的病理进程中起着重要作用。铁死亡中铁代谢失衡和脂质过氧化这两者是导致高血压疾病相关血管损伤、血管重构以及高血压靶器官损害的关键因素。本文系统梳理了铁死亡与高血压之间的分子关联及其病理生理机制网络，重点探讨了铁死亡中铁代谢紊乱 ...
刘琪悦, 刘丽军
doaj
Gaoya dianqi, 2016 电磁铁部分是高压断路器弹簧操作机构中实现电信号到机械信号转换的关键,电磁铁动作频繁,在断路器故障中占有一定的比例,有必要对电磁铁部分进行状态评估,及时发现问题。文中研究CT20弹簧操作机构电磁铁部分的动作过程及结构原理,并对电磁铁的磁路和运动过程中的阻力进行分析,建立电磁铁部分的动态数学模型,仿真及试验电流波形吻合,说明建立模型的有效性,并结合仿真分析畸变线圈电流的电磁铁部分运动过程,提出了基于线圈电流波形的电磁铁部分状态仿真分析法。
张浩 +5 more
doaj
Dianci bileiqi, 1982 为了提高悬式绝缘子铁帽的质量,创造优质产品,西安电瓷研究所根据机械工业部电工总局的要求,于1982年6月下旬在上海华丰钢铁厂组织进行了1982年全国悬式绝缘子铁帽质量等级品检查评定工作。参加这次检查评定的有上海华丰钢铁厂、大连电瓷厂、南京可锻铸铁厂、西安电工铸造厂、山东临沂玛钢厂、四川简阳机械厂、自贡可锻铸铁厂 ...
钟诗信
doaj
[Dehydrated hereditary stomatocytosis in 23 cases: a single-center retrospective cohort study from Peking Union Medical College Hospital (2018-2024)]. [PDF]
Zhonghua Xue Ye Xue Za ZhiWang Q +5 more
europepmc +1 more source
[Research Advances on the Autophagy and Ferroptosis in the Development and Treatment of Lung Cancer]. [PDF]
Zhongguo Fei Ai Za ZhiJiang C +6 more
europepmc +1 more source
[Role and Mechanism of High Mobility Group Box 1 in Mediating Depression-Like Behaviors in Mice via Regulation of the 5-Hydroxytryptamine Receptor 7 Signaling Pathway]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanDU O, Duan S, Tang L, DU J.
europepmc +1 more source
[Gastrodin inhibits ferroptosis to alleviate hypoxic-ischemic brain damage in neonatal mice by activating GPX4/SLC7A11/FTH1 signaling]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoGuo T +8 more
europepmc +1 more source