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As of the beginning of 2009, the demand-supply gap in domestic energy market has been eased to some extent. The price of......
Characteristic HSLA steels for automotive use are introduced in which both of precipitation and microstructure is contro......
Transesterification of palm oil to biodiesel using Br?nsted acidic ionic liquid as high-efficient an
The transesterification of palm oil and methanol catalyzed by Br?nsted acidic ionic liquids was investigated. Four eco-f......
Electrolytic low-titanium aluminum (ELTA) was produced by adding TiO2 powder to an industrial aluminum electrolyzer. The......
Annealing-induced Hardening in a Nanostructured Low-carbon Steel Prepared by Using Dynamic Plastic D
Lamellar nanostructures were induced in a plain martensitic low-carbon steel by using dynamic plastic deformation at roo......
On July 12th,Sino Saudi Aramco Company Ltd,a wholly owned subsidiary of Saudi Aramco,signed a mutual cooperation agreem......
目的:讨论消化道早期癌前病变行内镜下黏膜剥离术治疗后的护理价值体会.方法:将本院2020年1月-2021年2月收治的68例消化道早期癌前......
The refining effect and mechanism of Sb on Mg2Si and the microstructure of the matrix were investigated.The results indi......
The influence of cooling rate and addition of La and Ce on the formation of nanoporous copper by chemical dealloying of ......
The purpose of this paper is to adopt the uniform confidence method in both water pipeline design and oil-gas pipeline d......
At present, because the ion-nitriding technology is applied extensively in practice, manyresearchers in the materials s......
A new taxane diterpenoid, named 7-deacetoxy taxinine J, together with ten knowncompounds were isolated from the needles ......
Droplets of Co-16%Cu and Co-71.6%Cu peritectic alloys were solidified during container-less processing in a 3-m drop tu......
The title compound Ag3PSe4 was synthesized by the reaction of Ag powder, P2Se5 and Se in a molar ratio of 1:1:1 at 500 C......
The crystal structure of 8-methyl-5-phenyl-4-thia-6-aza-spiro [2.5] oct-5-en-7-ol (C13H15NOS, Mr = 233.32) has been dete......
Temperature field in the hot-top during casting a new super-high strength Al-Zn-Mg-Cu alloy by low f
The billets of a new super-high strength Al-Zn-Mg-Cu alloy in 200mm diameter were produced by the processesof low freque......
Difference of Mullite Whiskers between Ytterbia-Doped Aluminum Hydroxide-Silica Gel and Mechanochemi
A number of processing routes were developed for the synthesis of mullite whiskers. Mullite whiskers that were derived f......
Structure Evolution and Solidification Behavior of Austenitic Stainless Steel in Pulsed Magnetic Fie
To understand the solidification behavior of austenitic stainless steel in pulsed magnetic field, the solidification pro......
Based on the investigation of the tensile properties of spray formed ultra-high strength Al10.8Zn2.9Mg1.9Cu alloys, the ......
The metastable liquid phase separation and rapid solidification of Cu60Fe30Co10 ternary peritectic alloy were investigat......
Effect of Ce-rich misch metal addition on squeeze cast microstructure and mechanical properties of A
The effect of cerium-rich misch metal addition on the microstructure and properties of squeeze cast magnesium alloys AZ8......
The mechanical properties (σb,σ0.2,and δ) and fracture behavior of tensile specimens of the refined A356 alloys were ......
High-temperature oxidation resistance of Al2O3-and Cr2O3-forming heat-resisting alloys with rare earths(yttrium-implante......
The dynamic recrystallization(DRX) behaviors in SPHC steel were investigated with hot compression tests at deformation t......
Phase transformation behaviors and mechanical properties of Ti_(50)Ni_(49)Fe_1 alloy with severe pla
In this work,transformation behaviors and mechanical properties of cold-rolled shape memory alloy Ti50Ni49Fe1by severe p......
Microstructure and precipitation in two Zr-B microalloyed steels subjected to thermomechanical contr
The microstructures and precipitates in base metals and heat affected zones(HAZs)of two Zr-B microalloyed steels were ch......
Electro hydrodynamic analogue (EHA) method is applied to study the flow fields in the West Lake. It givesout a satisfac......
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海南移动指挥调度中心一期工程高层塔楼部分为四角渐变过渡的造型独特的高层建筑,其高宽比较大,且其角柱与常规意义上的角柱有很大......
云南石化有限公司建设期采用基于BH5000在线监测系统建立的监测诊断中心用于大型机组的在线监测，目前系统正在建设之中。该系统可以......
提出目标、角色、需求任务建模方法，将软件系统高层目标层层分解、精化成操作化目标，分配给角色作为角色目标，在需求工程过程中，用具体......
进程之间的等价关系或精化关系的同余或前同余性（congruence或precongruence）是组合式推理和模块化设计验证的理论基础。针对面向Web......
利用包钢技术中心Φ750mm×550mm热轧试验机组,对EH36级实验钢进行控轧控冷工艺制度研究,并获得实验钢的组织和性能,为开发各......
研究MgCO3加入质量分数（0.25%至1.75%）和搅拌时间对ZM5 合金晶粒尺寸的影响规律,结果表明：在ZM5 中添加MgCO3质量分数为0.25%时, ZM5 ......
高温环烷酸腐蚀是高酸值原油加工装置的主要破坏形式，温度、总酸值、流速、材质等均是环烷酸腐蚀的影响因素。以炼化装置常用的304，3......
A1-Ti—B中间合金作为一种晶粒细化剂，具有细化效果好、作用快、操作方便等特点，在A1加工行业中得到了广泛的研究和应用。本文回顾了......
移动网络中数据传输流量与速率与日俱增,如何评估数据业务传输过程中TCP的性能成为运营商研究的重点.主要提出了一种TCP性能评估的......
采用铂金坩埚电热熔融的方法制取玻璃片试样，应用X荧光光谱仪测定精炼合成渣中的CaO、Al2O3、MgO和SiO2，分析方法快速、准确，与传统的......
广州分公司采用电阻探针和挂片探针两种在线腐蚀监测技术对Ⅱ蒸馏装置的三顶轻油部位进行监测,测试结果与三项冷凝水分析结果相对......
面向对象的开发方法是一种很有前途的软件开发方法，它通过对应用系统的问题空间对象直接建模，然后将它们同态映射到解空间，使应用易理......
SystemC是一种基于C++的新型的描述语言.基于SystemC的软硬件协同设计比传统设计方法更加灵活.Cocentric System Studio(CCSS)是Sy......
为了快速准确地测定精四氯化钛中铁、铜、镍、铅含量,采用火焰原子吸收光谱法测定,用盐酸直接溶解样品,用标准加入法测定。测定铁......
介绍了烟气分析仪的构造和测试原理,从窑炉气氛分析了影响玻璃澄清质量的因素,及烟气分析仪在实际生产中的作用。......
针对柴油碱洗脱酸精制易乳化、收率低的问题，研究了催化酯化脱酸的技术来替代柴油碱洗脱酸。考察了在固定床催化剂存在下，影响柴油酯......
用精铁矿粉和Mn3O4制备功率铁氧体工艺特点,结果表明能用廉价的精铁矿粉制出性能接近PC30的功率铁氧体.......
针对镀锡板冷轧工序表面缺陷,在冷轧镀锡板取样并结合电镜进行分析,得出铸坯卷渣(Al-Ca-Mg-Na-O复合夹杂)及铸坯中Al2O3夹杂物是镀......
介绍了两种弧齿锥齿轮对滚检查改装设备,一种用普通车床改装,另一种用普通镗床改装,分别适用于不同直径大小的弧齿锥齿轮的接触区......
为精细模拟钢筋混凝土桥墩的非线性动力行为,基于钢筋混凝土纤维梁柱单元实用模拟分析平台FENAP,研究了结合纤维梁柱单元与有限元......
利用h-F凸函数的定义和h-F凸函数的Hadamard型不等式,在h、F满足一定条件的情况下,给出了h-F凸函数Hadamard型不等式的加细.......
