vale相关论文
作为一个5亿美元的代用燃料投资计划的一部分,世界矿业巨头巴西Vale公司打算将运用在其所属的Caraj偄s重载铁路的216台内燃机车全......
共有原子价电子实质地决定无机的晶体的内在的坚硬。一个坚硬模型根据从 Paulings 共有原子价契约长度方程和契约长度差别方法产生......
Ga In As P layers and Ga As P/(Al) Ga In P laser diodes(LDs) have been grown on Ga As substrates by metalorganic chemica......
Bi0.85La0.15FeO3 thin film was prepared on ATO glass substrates by sol-gel technique. The effect of La doping on phase s......
PROMOTING EFFECT OF VANADIUM IN CO HYDROGENATION OVER Rh-V/SiO_2 CATALYSTS FOR SYNTHESIZING C_2-OXYG
Rh-V/SiO_2 catalyst for the synthesis of C_2-oxygenates from syngashas been studied by means of reaction evaluation,TEM,......
In this paper, a new method of topological cleanup for quadrilateral mesh is presented. The method first selects a patch......
建立了钙钛矿材料中金属离子的碘滴定分析方法,并通过该方法对BaCe0.1CoxFe0.9-xO3-δ和BaZr0.1CoxFe0.9-xO3-δ钙钛矿透氧膜材料......
为了研究管内交变流动在流道侧向的速度相位分布特性,采用数值模拟方法针对平板流道内可压缩交变流动进行计算与分析.通过比较流道......
Cerium-substituted yttrium iron garnet(CexY3-xFe5O12, Ce∶YIG) was prepared via coprecipitation. The structure, morpholo......
苯乙烯是一种重要的化工原料, 是合成聚苯乙烯等高分子材料的单体. 目前, 工业上苯乙烯的生产采用两步法工艺, 即苯和乙烯在AlCl3......
阐述了Vale烧结用富矿粉的典型特点及其与他国铁矿石的差别，介绍了国内某些钢厂配加Vale粉矿进行烧结所获得的实验室和实际生产经验......
为了在较低温度下合成性能优良的SrAl2O4：Eu^2＋，Dy^3＋（SAO—ED）发光材料，采用溶胶-凝胶-微波法在900℃烧结30min合成SAO—ED发光材料。产......
A series of novel rare earth complexes with 11-tungstoferrate as ligand, K15Ln(FeW11 O39)2 .xH2O(Ln = La, Ce, Pr, Nd, Sm......
BACKGROUND Delta hepatitis is a rare infection with an aggressive disease course.For almost three decades,however,there ......
