Results 101 to 110 of about 622,498 (214)
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Magnetic particles coated with carbon shells have been considered as promising electromagnetic wave absorption materials with antibacterial features. However, how to precisely control the monodispersed magnetic nanoparticles on a carbon matrix to manipulate impedance matching and antibacterial performances is still a key challenge.
Xiaofei Li +10 more
wiley +1 more source
, 1997 利用计及相变剪切效应的陶瓷材料本构关系和裂尖场的双参数表达式，对平面应变Ⅰ型裂纹定常扩展过程进行了渐近分析。基于渐近场和能量积分，得到韧性增值的估算公式 ...
叶裕恭, 张浠
core +2 more sources
血清载脂蛋白A1、载脂蛋白B及其比值与冠脉病变程度相关性分析
Zhongguo shiyan zhenduanxue, 2013 目的研究血清载脂蛋白B（ApoB）、载脂蛋白A-1（ApoA1）及载脂蛋白A1/载脂蛋白B（ApoA1/ApoB）值与冠脉粥样硬化病变及其严重程度的关系。方法 510例行冠脉造影检查的住院患者根据冠脉造影结果分为单支病变组（132例）、多支病变组（266例）和对照组（112例）,比较血清ApoB、ApoA1水平及ApoA1/ApoB值在各组中的变化,分析其血清水平与冠脉狭窄严重程度的相关性。结果①冠心病单支病变组血清ApoB（0.98±0.35g/L vs0.76±0.48g/L ...
刘姗姗, 王璐, 邱建平
doaj
TA10 Titanium Alloy in HCl Solution: W‐Influenced Corrosion and Passivation Film Evolution
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT This work investigated the evolution of passive films of Ti–0.3Mo–0.8Ni (TMN) in 5 mol L−1 HCl and studied the influence of W on the anti‐corrosion properties of TMN. The intermittent electrochemical impedance spectroscopy test results showed that when TMN entered 5 mol L−1 HCl solution, the stability of the passive film first became stronger ...
Chaowen Zheng +7 more
wiley +1 more source
直流偏磁引起的500kV电力变压器振动和噪声的现场测量与分析
Gaoya dianqi, 2009 设计了500 kV单相电力变压器振动与噪声在线同步监测方案,并通过振动与噪声传感器及相应的数据采集和分析系统实现了对广东惠州500 kV变电站单相电力变压器直流偏磁条件下的振动与噪声的实时监测。监测得到了500 kV电力变压器外壳上典型位置在直流偏磁前后的振动与噪声的时域波形数据,分析得到了500 kV单相变压器振动与噪声信号在直流偏磁前后的频率范围。试验结果表明:直流偏磁条件下电力变压器的振动与噪声幅值增加明显且频谱中出现了大量高次谐波,对于变压器的运行有着不利的影响。
陈青恒, 马宏彬, 何金良
doaj
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Laser‐directed energy deposition (L‐DED) offers a flexible route for fabricating γ‐TiAl components, but the as‐deposited microstructure requires post‐processing to overcome limited deformation capability. Here, an L‐DED Ti–48Al–2Cr–2Nb alloy was subjected to solution and solution‐aging treatments.
Mengya Chu +6 more
wiley +1 more source
四川大学学报. 自然科学版, 2008 针对低照度岩心荧光图像拼接问题,通过相位相关法,利用频域中的相位信息来实现图像的拼接.对有位移、旋转、缩放,以及光照变化的图像用对数极坐标相位相关法进行图像配准.实验表明该方法能够有效地克服图像间光照变化和CCD镜头造成的几何畸变对拼接的影响,是一种有效的岩心荧光图像拼接方法.
姜元山 +3 more
doaj
, 2004 由于航天、信息、生物等高技术的发展，微尺度热物理问题得到了广泛的重视．作为一种非常高效的能量转换方法，微尺度相变传热的研究远末成熟．本文对微尺度相变传热作了较为系统的综述，论述了控制微尺度相变传热的准则数，分析了沸腾起始点、流型、压降、传热系数、不稳定性、临界热流密度六大关键问题．建议从实验和理论两个方面对微尺度相变传热进行深入的研究，以进一步理解其机理，为微蒸发器的设计 ...
周继军, 甘云华, 徐进良, 陈勇
core
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Bimetallic structures fabricated by laser powder bed fusion (LPBF) provide an effective strategy for achieving multifunctional integration, yet interfacial structural continuity and the role of lattice defects remain insufficiently understood.
Jinguo Ge, Shuo Yin
wiley +1 more source
, 2011 本发明涉及一种相变储能胶囊及其制备方法，首先在预聚体溶液中制备高分子乳液，通过控制反应温度及添加剂用量，控制聚合物壳层生成速度以包覆经表面处理的无机水合盐相变材料。以经表面处理后的无机水合盐作为囊芯相变材料，占胶囊总质量的40～80％，高分子聚合物作为囊壁，约占胶囊中质量的20～60％。通过囊芯材料表面处理、囊壁高分子材料预聚合、功能型耦联剂交联包覆等工艺完成相变微胶囊的制备 ...
徐芬 +4 more
core