Results 51 to 60 of about 9,691 (168)

Regulating TGO Nucleation and Growth of MCrAlX Coatings via Femtosecond Laser Remelting: The Role of Reactive Elements in the Oxidation Resistance

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT MCrAlX coatings are widely used as bond coats in thermal barrier coating systems to protect turbine blades from high‐temperature oxidation. However, their oxidation resistance is often restricted by uncontrolled microstructures, surface roughness, and aggregation of reactive elements (REs). In this study, high‐repetition‐rate femtosecond laser
Wei Qian   +7 more
wiley   +1 more source

WK—01型大差动温度控制器

open access: yesGaoya dianqi, 1985
本文介绍的WK—01型大差动温度控制器是一种新型的温度控制器,适用于要求大温度差动值的两位式温度控制。它采用管式温度敏感元件、跳跃式片簧带动电触头,具有许多优点。文中对其实现大差动值的工作原理有较详细的叙述,并给出了它的主要技术特性。
邱嗣鑫
doaj  

The Microstructure Evolution and Mechanical Properties of (FeCoCrNi)100‐x(AlCu)x High‐Entropy Alloys

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT This study systematically investigates the effects of AlCu addition on the microstructural evolution and mechanical properties of (FeCoCrNi)100‐x(AlCu)x (x = 0, 5, 10, 15, 20; at%) high‐entropy alloys (HEAs). The results reveal that the microstructure evolves from coarse equiaxed to refined equiaxed, dendritic, and ultimately dual‐phase ...
Shunfu Xie   +7 more
wiley   +1 more source

Study on characteristics of methane adsorption and thermodynamic in water-bearing shale [PDF]

open access: yes
Shale reservoirs generally contain water that has a significant impact on shale gas adsorption behavior and geological reserve evaluation. In order to explore the influence of water content on gas adsorption behavior in shale, an adsorption model ...
Bobo LI   +5 more
core   +1 more source

不均匀热老化油浸绝缘纸的极化/去极化电流特性研究

open access: yesGaoya dianqi, 2018
为研究温度梯度存在下,变压器油浸绝缘纸不均匀老化极化/去极化电流特性,文中在实验室条件下搭建不均匀热老化试验平台,进行不同温度梯度作用下油浸绝缘纸的不均匀热老化试验。通过测定试样的聚合度和极化/去极化电流得出如下结论:在温度梯度作用下,高温受热绝缘纸的聚合度下降速率大于低温受热绝缘纸;油浸绝缘纸老化后期,聚合度下降速度变缓;在同一温度等级下,处于温度梯度下的油浸绝缘纸老化更严重。油浸绝缘纸受热温度升高,其极化/去极化电流均向左上方平移,电导率增大;在同一温度等级下,油浸绝缘纸不均匀老化下的极化 ...
隋彬, 曹建军, 宋臻杰, 尹小兵
doaj  

输电管道余热利用装置设计及数值计算

open access: yesGaoya dianqi, 2020
新型输电管道在传输电能时,导体部分因损耗而发热,若能将该热量利用,加热导热介质,可对外供暖,因此,需要开发一种装置,在不影响输电管道正常工作的前提下,利用热量并对外供暖。文中以合理利用输电管道导体的发热量为目标,以保证装置的绝缘强度为基础,以方便与输电管道的连接为考虑,设计一套用于输电管道的余热利用装置;文中介绍了装置的具体结构和各部分的作用,并对装置的工作原理和与输电管道的连接方案做了说明。为了研究余热利用装置的绝缘和温升情况,建立了相应的余热利用装置模型,对模型的电场和温度场进行了计算分析,结果表明,
张曦橙   +8 more
doaj  

A Stretchable Sandwich Composite Film With Ultra‐Broadband Electromagnetic Interference Shielding and High‐Performance Photothermal Conversion Capability

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT With the rapid growth demand for advanced integrated electronic systems, lightweight flexible electromagnetic interference (EMI) shielding films integrated with functional properties, such as excellent mechanical properties and self‐healing capability, are a research focus in high‐tech functional materials. Herein, a sandwich‐structured aramid
Dan Guo   +9 more
wiley   +1 more source

手揉み法による術前手指消毒の有効性 [PDF]

open access: yes, 1996
術前の手洗いは、医療従事者の手指を介する感染を予防する為の重要なファクターである。しかし、現在行っているヒュールプリンガ一変法では、皮脂炎や掻淳感などの副作用が現れていた。そこで、近年報告されている手提み法に注目し、実験を試みた。現在、使用しているヒビスクラブRとイソジンR液を用い、ヒュールプリンガ一変法と手提み法の除菌効果を比較した。その結果2つの手洗い方法においては、細菌検出率に大差はなかったが、2つの消毒薬を比較すると除菌率はヒビスクラブRの方が優位であった。今回手探み法を導入しでも ...
後藤田 芳枝   +5 more
core   +1 more source

膨润土改性沥青乳剂覆盖地面后的生物效应研究

open access: yesShuitu Baochi Xuebao, 2000
在山西省隰县的小区试验表明,膨润土改性沥青乳剂覆盖地面后,可以快速产生草本植被,在暴雨来临前夕植被盖度较高。同时,对覆盖后的地面径流、土壤含水量、土层温度作了观测,初步认为,草本植被的产生是由于覆盖后增温作用、保水作用以及两者的优势协调产生的。
殷海善 王改玲
doaj   +2 more sources

Synergistic Effect of MOF@CMC‐Derived Magnetic Nanocomposites: Enhancing Electromagnetic Interference Shielding and Joule Heating

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Emerging as attractive alternatives for sustainable, low‐cost, and high‐performance electromagnetic interference (EMI) shielding, biomass‐derived carbon is nonetheless constrained by a limited repertoire of shielding mechanisms. Herein, a straightforward method was employed to synthesize self‐supporting Co nanoparticles embedded in porous N ...
Yingjie Xu   +6 more
wiley   +1 more source

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