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is interfacial shear fracture. The microhardness of the joint on the Al side distributes in a typical "W" type and is symmetry along the weld center, but the distribution of the microhardness on the Ti side..., from the center near the weld to the edge of the weld. This zone is gradually expanded to the entire joint, forming the morphology of the two semicircular shapes along the weld center symmetry. 3......
+ substituting for Ce4+ ions in the lattice with a cubic symmetry, ones in defect with a noncubic symmetry, and at the surface of samples.关键词:......
in local symmetry,which is related to disordered atoms that are induced by size effects in SBT nanoparticles.关键词:......
the azimuth symmetry ambiguity. This study shows the application prospects of this method for predicting geohazards position several hours in advance. Key words: geologic hazards; infrasound; helix... of required array elements and the existence of fuzzy symmetry. This paper first established a two-dimensional sound field propagation model based on the normal wave model. This method described the sound......
.数值模拟预测结果与实验检测结果吻合良好. 关键词:钨钛粉末;爆炸压实;马赫孔;装药比;数值模拟 中图分类号:TG146.4 文献标识码:A Axial symmetry explosive compaction of W-Ti powders ZHANG Xiao-li1, 2, WANG Jin-xiang1, JIA... 210094, China) Abstract: Axial symmetry explosive compaction was investigated for W-Ti powders at different mass ratios of explosive to mixed powders (E/M). The micrographs near the axis of the specimens......
were carried out. Due to the symmetry of the stands, a quarter of the stand structures were measured. The first stand and the third stand were respectively arranged with 96 and 88 measuring points......
behind the front car and the tail car are almost symmetry, shed wake vortexes are produced in these area and progress to the middle of the train, these vortexes intervene and merge with the vortexes from......
the same β slip plane is 100°. There are five angles between any two variants via symmetry operations. Key words: Ti-6Al-4V alloy; phase field simulation; elastic strain energy; microstructure evolution......
新型除草剂2.5%稻杰的有效成分测定-高效液相色谱法吕刚1,王利兵2,罗璇1,刘军11. 天津出入境检验检疫局2. 湖南出入境检验检疫局摘 要:采用高效液相色谱测定了新型除草剂2.5%稻杰(FENCER)的有效成分,用外标法进行定量分析.条件为:Waters Symmetry C8色谱柱;流动相包括V(乙腈)∶V(水)∶V(1%H3PO4=60∶40∶0.1;检测波长为285 nm;流速为1.0 mL/min,柱温为室温;进样量为10μL;实验结果表明,样品平均回收率为98%,精密度为0.13%.关键词:2.5%稻杰;除草剂;高效液相色谱法;......
A Microcomputer Fitted Method for Determination of the True ODF of Hexagonal Materials according to the Maximum-Entropy EstimateLiqing CHEN Fu WANG Zhide LIANG Dept.of Materials Science and Engineering,Northeast University of Technology.Shenyang,110006,China摘 要: <上一页 1 2 3 4 5 6 7 8 9 10 ... 3975 下一页 >