Results 21 to 30 of about 949,091 (156)
Ultrasonic Vibration Assisted Laser Processing: A Hybrid Paradigm for Extreme Surface Enhancement
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Traditional laser processing techniques offer many advantages, but they often encounter limitations such as heat‐affected zones, recast layers, residual tensile stresses, and poor surface finish. The integration of ultrasonic vibration (UV) presents a promising hybrid approach to overcome these challenges by introducing beneficial effects like
Aziz Ul Hassan Mohsan +6 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2008 目的研究肝素结合性表皮生长因子（HB-EGF）在早孕人工流产（正常早孕）及早孕自然流产（早期流产）绒毛组织中的表达是否存在差异,并进一步探讨HB-EGF在早期流产病因学中的作用。方法采用免疫组化链霉菌抗生物素-过氧化物酶（SP）连接法检测正常早孕妇女及早期流产患者绒毛组织中HB-EGF的表达。结果正常早孕组与自然流产组绒毛组织内均有HB-EGF表达,各组HB-EGF均表达于绒毛组织滋养细胞细胞膜和细胞浆内。灰度测定与对照组比较,自然流产组绒毛组织内HB-EGF表达明显减弱（t=2.48,P=0.02 ...
李巍 +4 more
doaj
贵州省黔南区不同侵蚀性雨型条件下生物措施对坡面产流产沙的响应
Shuitu Baochi Xuebao, 2020 为探讨不同降雨条件下的生物措施对坡面产流产沙特征的影响，分析了贵州省黔南自治州云雾水土保持监测站2014—2017年4年6个小区104次侵蚀性降雨下的实测产流产沙数据。结果表明：（1）侵蚀性降雨按历时、雨强和雨量可分为3类，包括A雨型（中历时、中雨强、中雨量），B雨型（长历时、小雨强、大雨量），C雨型（短历时、大雨强、小雨量）。C雨型为引起区域水土流失的主要雨型。（2）较坡耕地而言，A雨型和C雨型条件下减流量均呈水平阶整地+经果林 > 水保林 > 人工草地 > 自然恢复草地 > 经果林的趋势 ...
黄凯 +5 more
doaj
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Overcoming the strength–ductility trade‐off in face‐centered cubic (FCC) multi‐principal element alloys (MPEAs), particularly at cryogenic temperatures, remains a significant challenge. Here, a laser powder bed fusion (LPBF)–enabled direct aging strategy is employed to modify the precipitation behavior in a Ni53Fe20Cr23Nb4 (at%) alloy.
Xiaohui Qin +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT The immunosuppressive milieu of hepatocellular carcinoma (HCC) remains a major obstacle to durable antitumor responses. Mechanical‐energy‐driven piezocatalysis provides a noninvasive means of inducing oxidative damage and immunogenic tumor destruction; however, inefficient utilization of piezoinduced charges and insufficient localization of ...
Mingjian Zhang +7 more
wiley +1 more source
, 2013 本文概述了自然环境流动的基本内涵,阐明自然环境流动及其中的物质、能量输运是认识环境和灾害发生及演化内在机理的基本科学问题,分析了自然环境流动的主要特征和研究方法 ...
刘青泉
core +1 more source
Zhongguo shiyan zhenduanxue, 2000 目的 通过对三组不同妊娠情况组别胚胎组织标本检测人类微小病毒Ｂ１９（Ｂ１９Ｖ）结果的分析，探讨Ｂ１９Ｖ感染与 人类自然流产之间的关系。方法实验对象由７２例不明原因自然流产的病人、３２例妊娠情况正常的人工流产者、３６例足月 分娩新生儿正常的产妇组成，计１４０例。收集流产组织和正常产妇胎盘组织为检测标本，应用聚合酶链反应（ＰＣＲ）方法检测 Ｂ１９Ｖ。结果 ７２份自然流产病人流产组织标本Ｂ１９Ｖ的检出率为２７．８％（２０／７２），３６份正常产妇胎盘组织标本Ｂ１９Ｖ的检出率 为５．６％（２／３６ ...
薛承岩 +5 more
doaj
Efficient Photocatalytic Removal of Toluene by Synergistic FeCe/TiO2: Performance and Mechanism
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Efficient removal of volatile organic compounds (VOCs) in confined spaces is crucial for environments such as spacecraft and deep‐sea submarines. Metal modification is an effective strategy to enhance the light absorption capacity of titanium dioxide (TiO2) and suppress the recombination of photogenerated charge carriers.
Ke Xu +10 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2000 目的 通过对三组不同妊娠情况组别胚胎组织标本检测人类微小病毒Ｂ１９（Ｂ１９Ｖ）结果的分析，探讨Ｂ１９Ｖ感染与 人类自然流产之间的关系。方法实验对象由７２例不明原因自然流产的病人、３２例妊娠情况正常的人工流产者、３６例足月 分娩新生儿正常的产妇组成，计１４０例。收集流产组织和正常产妇胎盘组织为检测标本，应用聚合酶链反应（ＰＣＲ）方法检测 Ｂ１９Ｖ。结果 ７２份自然流产病人流产组织标本Ｂ１９Ｖ的检出率为２７．８％（２０／７２），３６份正常产妇胎盘组织标本Ｂ１９Ｖ的检出率 为５．６％（２／３６ ...
薛承岩, 宋鸿儒, 石静
doaj
Efficient Spin‐Orbit Torques Enabled by Vanadium‐Induced Orbital Currents for Neuromorphic Computing
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Spin‐orbit torque (SOT) provides an efficient electrical pathway for encoding spin states and underpins emerging, ultrafast, and nonvolatile spintronic memories and logic devices. Reducing the switching current density and power consumption remains a central challenge for practical applications.
Zhonghai Yu +17 more
wiley +1 more source