Results 51 to 60 of about 717,024 (165)
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
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
wiley +1 more source
Research progress on clinical application of intensive care ultrasound (重症护理超声临床应用进展)
中西医结合护理With the continuous advancement of ultrasound technology, bedside ultrasound has gradually become an important tool in clinical practice due to its significant advantages, such as real-time dynamic imaging, non-invasiveness, and repeatability. This study
SU Yin (苏尹) +2 more
doaj +1 more source
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Zinc‐based biodegradable metals are promising implant materials, and additive manufacturing offers a powerful route for their patient‐specific fabrication. However, process‐induced surface defects can accelerate degradation and compromise biocompatibility, rendering post‐processing essential.
Yixuan Shi +13 more
wiley +1 more source
Gongye shui chuli, 1986 超滤是70年代初发展起来的、具有广阔前途的膜分离新技术,但是随着超过滤技术的不断发展,出现了一些急待人们解决的问题,其中最重要的问题就是膜面污染。它包括浓差极化、凝胶层的形成以及吸附等现象。在用超滤法处理和回收高浓度印染废水过程中,膜面污染尤为严重,它使膜的透水率和设备的使用周期降低,经济效益受影响。因此,解决膜面“污染”已成为超滤作业中的一个重要课题。目前国内外从事膜技术的工作者都在从事这方面的研究。
郭维华, 姜安玺, 谭秋月
doaj +2 more sources
Gaoya dianqi, 2003 超导储能磁体的失超是超导电力设备技术实用化有待深入研究的一个重要问题。笔者综述了超导储能磁体的设备级失超检测及保护方法,并提出了参考性建议。
喻小艳 +4 more
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, 2013 本发明属于超快诊断领域，尤其涉及一种超短电子脉冲脉宽测量装置及方法。包括俄歇靶材、待测电子脉冲、载波包络相位锁定的疏周期超强近红外飞秒脉冲源及电子能谱探测分析系统；近红外飞秒脉冲源所发出的脉冲与待测电子脉冲入射在俄歇靶上的同一空间点；待测电子脉冲通过俄歇靶材电离出俄歇电子脉冲；电子能谱探测分析系统可接收电离出的俄歇电子脉冲，通过俄歇电子的二维电子能谱图即可重建出俄歇电子脉冲的时域轮廓；将此时域轮廓分布与俄歇靶材的俄歇过程进行反卷积运算，即得出待测电子脉冲的时域轮廓，进而得出待测电子脉冲脉宽 ...
王超, 白永林, 赵卫, 田进寿
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Spent automotive exhaust catalysts represent the largest secondary resource of palladium (Pd), and their efficient recovery is essential to support the sustainability of Pd‐related industries. Inspired by supramolecular chemistry, a novel calixarene derivative, 5,11,17,23‐tetra‐tert‐butyl‐25,27‐bis[(N′‐hydroxyacetimidamide)ethoxy]‐26,28 ...
Tao Ge +8 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 1998 目的: 探讨彩色多普勒超声心动图在重度二尖瓣狭窄(MS)行小球囊经皮二尖瓣球囊成形术( PBMV)前后的作 用。方法: 观察 22例重度 MS 行小球囊 PBM V 前后的超声心动图变化。结果: 术后超声心动图发现左房内径 、二尖瓣口面积 较术前显著改善(P
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Zhongguo shiyan zhenduanxue, 2020 糖尿病（DM）和超重/肥胖对人类健康的威胁越来越明显。发病率和致死率成逐年上升的趋势[1]。2型糖尿病（T2DM）伴有超重/肥胖者,尤其是伴有腹型肥胖（中心性肥胖）与胰岛素抵抗（IR）的关系越来越备受人们关注。体内脂肪的堆积导致的胰岛素抵抗是T2DM发病率增加一个重要环节。
莫帅帅, 孙立娟
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