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期刊Preparation of Ultrafine Si Powders from SiH_4 by Laser-induced Gas phase Reaction
《材料科学技术:英文版》1995年第1期71-74,共4页Yali LI Yong LIANG Kesheng XIAO Fen ZHENG and Zhuangqi HU(State Key Laboratory of Rapidly Solidified Nonequlibrium Alloys, Institute of Metal Research,Chinese Academy of Sciences, Shenyang, 110015, China) 
High quality ultrafine Si powders have been synthesized from SiH4 by laser induced gas phase reaction. The powders prduced under different synthesis conditions have mean particle size of 10-120nm in diam. with narrow ...显示全部
关键词:Si Preparation of Ultrafine Si Powders from SiH4 by Laser-induced Gas phase Reaction FIGURE 
期刊TiAl基合金双温热处理原理及其相变特征的研究被引量:13
《中南工业大学学报》1996年第3期298-301,共4页贺跃辉 黄伯云 曲选辉 刘业翔 
国家自然科学基金;国家"八六三"高技术研究计划基金
使用多种分析及检测手段,较详细地研究了双温处理细化TiAl基合金热锻试样的显微组织的机理,并研究了双温处理显微组织特征。
关键词:钛铝基合金 热处理 显微组织 相变特征 
期刊射孔参数优化设计被引量:3
《油气井测试》2008年第5期65-67,78,共3页宋时权 李晶晶 许志伟 黎亮 
射孔参数主要包括射孔密度、孔眼直径、孔眼深度和射孔相位。从理论模型入手,对可能的射孔方案用有限元方法进行产能预测,对各个方案满足目标和约束条件的情况做优化评价,从中找出最优射孔参数,使所选择的射孔参数能够达到最大产能比,...显示全部
关键词:优化设计 射孔 密度 深度 相位 
期刊phaseS AND phase TRANSITION IN YBa_2Cu_3O_(7-δ) SUPERCONDUCTORS
《中国科学:数学英文版》1990年第3期317-323,共7页王强 顾秉林 王明亮 张孝文 
Using the cluster variation method and the nearest and next nearest neighbour interactions, i. e. J and J’ between oxygen and oxygen, oxygen and vacancy, and vacancy and vacancy on the Cu-O plane of YBa2Cu3O7-δ, the...显示全部
关键词:CLUSTER variation phase phase transition. 
期刊一种高准确度相位标准件研究被引量:1
《国外电子测量技术》2019年第5期120-122,共3页盛永鑫 
微波高准确度相位计量手段缺乏,不能适应全数字装备计量保障要求。为了解决该难题,基于光纤延迟原理,提出一种新型相位标准件设计思路,通过光纤延时精密连续可调技术、宽谱光的干涉测试技术研究,建立了基于光纤延迟的相位标准件。标准...显示全部
关键词:光纤延迟 相位 标准件 
期刊Botanical Medicines With Activity Against Stationary phase Bartonella henselae
《感染微生物与疾病(英文)》2021年第3期158-167,共10页Xiao Ma Jacob Leone Sunjya Schweig Ying Zhang 
supported by Bay Area Lyme Foundation,the Steven&Alexandra Cohen Foundation,LivLyme Foundation,and the Einstein-Sim Family Charitable Fund.The funders had no role in study design,data collection and interpretation,writing of the manuscript,or the decision to submit the manuscript for publication.
Bartonella henselae is a Gram-negative bacterium and is the causative agent of cat scratch disease.In humans,infections with B.henselae can result in acute or chronic systemic infections with diverse clinical symptoms...显示全部
关键词:antimicrobial activity Bartonella henselae botanical medicine herbal medicine medicinal plant persisters PHYTOTHERAPY stationary phase 
期刊Antarcticite, a phase Change Material for ThermalEnergy Storage: Experiments and Simulation
《矿物学报》2013年第S1期28-28,共1页GU Xiaobin NIU Jingjing QIN Shan 
Antarcticite, a mineral with composition CaCl2·6H2O and structure P321, is an ideal phase change material (PCM) due to the high energy storage density and good thermal conductivity. However, the existence of supe...显示全部
关键词:Antarcticite phase CHANGE MATERIAL SUPERCOOLING simulation 
期刊phase AND FREQUENCY LOCKING OF MICROWAVE AND MILLIMETER WAVE POWER COMBINING
《电子科学学刊:英文版》1994年第4期361-368,共8页谢文楷 刘盛纲 
Supported by the National Natural Science Foundation of China
The phase and frequency locking of microwave, millimeter wave power combining were analysed and summarized in an all-round way. The master/slave phase locking of cavity oscillators, the peer phase locking of mutually ...显示全部
关键词:Power combining phase LOCKING Frequency LOCKING Master/slave phase LOCKING PEER COUPLE phase LOCKING SOLID-STATE source RELATIVISTIC microwave device 
期刊INCOMMENSURATE AND COMMENSURATE phase TRANSITIONS IN Ti-Ni-Fe ALLOY
《金属学报:英文版》1990年第2期89-92,共4页RAO Jianxi Naval Academy of Engineering,Wuhan,China MA Ruzhang University of Science and Technology Beijing,Beijing,China HE Yusheng Tsinghua University,Beijing,China MA Ruzhang Professor,Department of Metal Physics,University of Science and Technology Beijing 100083,Beijing,China 
Measurements by using the ultrasonic technique together for electric resistance verified thatthe first sound velocity valley on cooling is mainly due to the soft-mode of driving the com-mensurate phase transition,and ...显示全部
关键词:incommensurate phase TRANSITION COMMENSURATE phase TRANSITION Ti-Ni-Fe alloy 
期刊三角调频连续波建模与数值仿真被引量:1
《光学技术》2008年第S1期181-183,共3页栗苹 郭渭荣 田力 陈慧敏 李月琴 
三角调频连续波由于测距精度高,所以在测距系统中有着广泛的应用。结合模数函数、绝对值函数和符号函数,推导了三角调频连续波的频率和相位的数学表达式,并进行了建模及仿真。仿真结果表明,频率和相位的数学表达式满足微积分的关系,能...显示全部
关键词:调频连续波 三角波调频 频率 相位 
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