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镍基高温合金球形粉末制备方法主要有等离子旋转电极制粉技术（PREP法）、真空感应熔化气雾化法（VIGA法）、离子雾化法（PA法）和电极感应气体......
大学预科卓越研究计划（Pre-college Research Excellence Programs,PREP）是美国田纳西州中学生的非正式STEM项目的重要一环,旨在促进......
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Good adherence,in addition to drug efficacy,social interaction and behaviour,is important for the effectiveness of HIV p......
由于博士生辍学率高、毕业年限长、就业去向多元化等问题的存在，过去二十多年间，美国政府、社会和高校开展了许多改革项目。密歇根州......
A novel poly[acrylonitrile-co-(3-ammoniumcarboxylate-butenoic acid-methylester)]copolymer for carbon
A novel bifunctional comonomer 3-ammoniumcarboxylate-butenoic acid-methyl ester(ACBM) was synthesized for preparing poly......
A macromer, methoxypolyethylene glycol acrylate(MPEGAA), was synthesized by direct esterification using methoxypolyethyl......
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I.顾名思义,preposition意为前位、前置,然而前置词有时后置,因而又产生了postposition(后置词)一说。无论前置或后置,其功能只有......
Spatial and temporal plasticity of synaptic organization in anterior cingulate cortex following peri
To explore whether experiencing inflammatory pain has an impact upon intracortical synaptic organization,the planar mult......
一 英语学习到了一定阶段,如果需要进一步提高,可以使用多种方法,最有成效的是加强对词语的联想搭配训练。不断地扩大词汇量,丰富......
利用光学显微镜、扫描电镜和透射电镜对不同粒度等离子旋转电极雾化(PREP)FGH4096合金原始粉末的凝固组织和碳化物进行研究。分析......
1.How to Teach Students to Memorize New Words1) Mem orize the syllables of words and their stressed syllablesAs we know,......
Photopolymerized sol-gel(PSG) columns were prepared using methacryloxypropyltrimethoxysilane as the monomer,toluene as t......
The room temperature stability and crystallization of amorphous Nd_xFe_(1-x)thin filmswith x=0.06—0.90,prepared by fla......
The electrochemical formation processes of holmium-coball alloys on cobalt cathode in molten HoCl3-KCl were investigate......
The temperature field of FGH95 alloy droplet atomized by plasma rotating electrode processing (PREP) during solidificat......
快速固化技术的大多数新进展均表现为对过程参数的控制,以求能经济地生产清洁并且粒度一致的粉末。清洁和粒度一致是粉末生产中两......
通过粉末冶金技术生产钛部件,可使一系列结构件获得技术和经济上的利益。这种生产技术原则上有两种工艺: 通过挤压、烧结和锻造工......
西北有色金属研究院用自制等离子旋转电极设备制取了含稀土元素Er的Ti_3Al基合金粉末。并研究了粉末的物理、化学和工艺特性:PREP......
TiAl粉末分为两种:一种是用等离子旋转电极工艺生产的粉末(PREP);另一种是将第一种粉末进行球磨的粉末(PREP-BM),将以上两种粉末......
研究了用快速冷凝(RS)旋转电极工艺制取的Ti_3Al基合金粉末的物理性能、化学性能、显微结构以及热处理对显微结构、显微硬度的影响......
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THERMOCHEMISTRYANDMECHANISMONTHEPROCESSOFPREPARINGPOWDEROFBi2O3USINGMELT-A TOMIZING-COMPUSTIONMETHOD①ZhouNai......
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By using an MTS810 hydra-electro-servo universal machine,the effect of moisture content and temperature on the rate sens......
Determining the cooling rate of a rapidly-solidified (RS) technique subjectively is a prerequisite of knowing the RS tec......
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The raw materials and quantities used are listed in the following table:Raw materials Quantity used Purity (parts)p(?)y......
本研究是一个进行中的纵向实验的一部分,该实验旨在比较一个认知干预方案(PREP:PASS阅读促进方案)和一个主要关注语音、命名速度和......
我们以PEcob6含双拷贝乙型肝炎病毒的质粒为模板，进行聚合酶连反应，获取C区基因．平端连结克隆到PBKS+质粒中，选译出C区反义基因。再将C......
故障现象：机器通电，内存程序显示错误，摄片时，触摸PERP键及EXPOSE键无X线发生。（一）开机时，液晶显示器（LCD）上显示为：BENNETT—X—RAYROM（CIE7......
In order to investigate the influence of processing parameters on the granularity distribution of superalloy powders du......
The properties and forming process of prealloyed powder metallurgy(PM) Ti-6Al-4V alloy were researched for application o......
A large-scale finite element modeling, simulation and visualization for wind flows are presented. The modeling method us......
Objective To prepare liver-targeted baicalin solid lipid nanoparticles(BSLNs) and to study their in vitro anti-oxidative......
Numerical analysis on solidification process and heat transfer of FGH95 superalloy droplets during P
In order to understand the relation between microstructure of superalloy powders and its solidification progress, the p......
The surface microstructure and the surface segregation of FGH95 nickel-based superalloy powders prepared through plasma......
Nanometer-sized xonotlite fibers have great potential application in many fields. The traditional method of preparing u......
采用等离子旋转电极制粉工艺(PREP)制取镍基高温合金粉末并对其中的一种异常颗粒进行了观察、分类、统计和分析。结果表明,合金粉......
The electrochemical nucleation mechanism of nickel on the vitreous carbon electrode from n-Al_2O_3/Ni composite brush pl......
In order to prepare a high capacity packing material for solid-phase extraction with specific recognition ability of tra......
Microwave irradiation was firstly attempted for the preparation of organic-based monoliths of poly(styrene-divinylbenzen......
Tribological properties of La_2O_3 and CeO_2 doped CoCrW coatings deposited by supersonic plasma spr
A novel supersonic plasma spraying was used to prepare rare earth oxides doped CoCrW coatings. X-ray diffractometer, con......
The corrosion behavior of Cu-Cr alloy in 3.5%NaCl+NH3 solution had been studied, and the influences of the concentration......
SYNTHESIS OF NOVEL BI-FUNCTIONAL COPOLYMER BEARING STERICALLY HINDERED PHENOL AND HINDERED AMINE GRO
Norbornene derivatives exo,endo-2-[2-(3,5-di-tert-butyl-4-hydroxyphenoxy)-acetoxy]methyl-5-norbornene(M1) and 3,3,5,5-te......
Doping amine functional groups into SiO2/TiO2 films for enhancing the decomposition of formaldehyde has been investi- ga......
Bismuth titanate (Bi4Ti3O12) platelets were prepared by molten salt method in a new salt system of CaCl2-NaCl at 650-750......
