Results 31 to 40 of about 9,802 (167)
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT This study introduces a novel velocity‐iterative directional annealing (IDA) strategy to overcome stagnation challenges in columnar grain growth of Ti‐48Al‐2Cr‐2Nb alloys. By dynamically adjusting hot zone migration rates across iterative cycles, the IDA protocol achieved 92.2% synchronization between anisotropic α‐grain boundary (GB ...
Zedong Liu +6 more
wiley +1 more source
Microscopic fracture characterization and permeability evolutionary patterns of granites under cyclic thermal shock [PDF]
ObjectiveThis study aims to reveal the microscopic damage characteristics and permeability evolutionary patterns of high-temperature granite reservoirs fractured under cyclic thermal shock produced by low-temperature fluids like drilling fluids and ...
Chengcheng REN +5 more
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Mechanism of Revelation of Telescoped² Gene in .Drosophila virilis (V) [PDF]
, 1952 departmental bulletin ...
84706, 坂本, 義彦
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The high operating temperatures and sluggish kinetics of Mg‐based hydrogen storage materials (HSMs) are urgently being addressed. In this work, a novel Mg–Ni–Ga HSM with dual‐phase synergistic catalysis is developed, including the fishbone‐like Mg3Ni2Ga1 catalytic phase and the Mg2Ni phase with stacking faults (SFs).
Shiyang Hu +7 more
wiley +1 more source
Gaoya dianqi, 1991 （问）不同环境温度下液压机构的压力如何换算? （答）换算方法有3种: 方法Ⅰ:氮气预充压力PO和额定工作压力（额定油压）PH,是在环境温度为20℃下的表压值。而测压时环境温度t可能高于或低于20℃;乃外在测定位置不变时,压力随温度的变化是处于定容变化过程,即P/T=常数。P与T应采用绝对值,但作为工程应用,可以按下式进行换算。由于产品中使用kg/cm2,故未作换算。
林立生
doaj
Investigations of characteristics and applications of chirped and phase-shifted fiber Bragg gratings [PDF]
, 2008 相移光纤光栅是指在光纤光栅的某些点，通过采用一些方法破坏其周期的连续性而得到的，这些不连续的连接会产生相移。目前所研究的相移光纤光栅仍停留在均匀Bragg光栅上引入相移点，而本文研究的啁啾相移光纤光栅是在啁啾光栅上引入相移点，并与普通相移光纤光栅的光谱特性进行了比较。啁啾相移光纤光栅不仅具有普通相移光纤光栅的一些重要的特征，而且其反射带宽和透射窗的带宽可以根据需要在很宽的范围设计。本文的工作对设计新型啁啾相移光纤光栅器件提供了理论依据。 第一章综述了光纤光栅的发展背景、分类和制作方法 ...
康赟
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Additively manufactured AlCoFeNi series eutectic high‐entropy alloys (EHEAs) exhibit nonequilibrium dual‐phase microstructure in the as‐printed state, allowing them to be easily tailored through annealing to explore their strength–toughness potential.
Huidong Wu +13 more
wiley +1 more source
Gaoya dianqi, 2015 针对新型倍容量导线运行温度高达200℃,而传统屏蔽服不能隔热的问题,笔者研制开发了一种隔热屏蔽一体新型屏蔽服,并对该服装各项指标进行了测试。研究结果显示在发热体温度为200℃时,隔热屏蔽一体服的表面温度从35℃升高到60℃所用时间为90 s,满足操作人员作业时间要求,适用于采用倍容量导线的110500 kV输电线路带电作业时使用。
邢军 +4 more
doaj
Zhejiang Daxue xuebao. Lixue ban, 2016 为了 掌握苏云金芽孢杆菌（Bacillus thuringiensis）对金银花尺蠖(Heterolocha jinyinhuaphaga Chu）幼虫致病的最佳条件，测定了不同温度、不同浓度下的苏云金芽孢杆菌对金银花尺蠖幼虫的致死作用.结果表明，在15〜35 ℃，苏云金芽孢杆菌浓度为1×104，1×105，1×106，1×107，1×108，1×109芽孢• mL-1，各浓度下对金银花尺蠖幼虫均有一定的致死作用，在31 ℃时校正死亡率达到最大，分别为60.32%，67.
XIANGYuyong(向玉勇) +3 more
doaj +1 more source
激光冲击强化对NiTi形状记忆合金热力学性质及微结构的影响 [PDF]
, 2013 采用多物理场短瞬时同步测量的LSP实验平台,研究了LSP作用后Nri形状记忆合金的马氏体相变行为、表面硬度、LSP影响层深度以及微结构的变化。NiTi合金的马氏体相变行为通过差示扫描热分析仪DSC进行研究,结果发现Nri合金的相变温度没有发生明显的变化,表明LSP后NiTi合金能够保留其优异的形状记忆效应和超弹性性能。LSP后NiTi合金表面硬度则通过显微硬度计进行测量,结果发现LSP后表面硬度得到提高,且随着激光功率密度的增加,表面硬度提高的幅值增大 ...
吴先前 +4 more
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