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, confirmation tests were carried out using analysis of variance(ANOVA) from the developed regression equation. Finally, wear mechanism studies were conducted using scanning electron microscopy(SEM......
粉末样品的粒度对压片-X射线荧光光谱法测定炉渣准确度的影响任维萍1,冯淑琴2,王珺1,芦飞11. 山西太钢不锈钢股份有限公司技术中心2. 山西省工贸学校摘 要:压片-X射线荧光光谱法(XRF)测定炉渣的准确度常常受到粒度效应和矿物效应的影响.实验结合扫描电镜和能谱仪的检测手段,从宏观和微观的角度研究了炼钢精炼炉渣各组分在不同粒径范围的分布;对不同制备方法制得的粉末样品进行压片法和熔片法制片后采用X射线荧光光谱测定,并分析了检测结果产生差异的原因;借助ANOVA一元方差统计分析法,在0.160.088mm粒度范围内,讨论了粒度对不锈钢精炼渣,电炉渣,碳素钢精炼渣,电炉渣主成分的压片-X射线荧光光谱法结果的影响:同一样品的同一组分在不同粒度范围内所占份额不同,特别是氧化钙,二氧化硅,三氧化二铝,氧化镁尤为......
of variance(ANOVA)were performed on the results of the designed experiments.The best model which can predict the hardness of the Ni-Cr alloy electrodeposits was found whereas the frequency......
;且相比于SDSTWR(Symmetric Double-Sided Two-Way Ranging)方法,卡尔曼滤波和指纹定位方法以及卡尔曼滤波和参数拟合方法,所提方法平均定位误差分别减小了3.4,0.4和0.6 m.从而表明所提方法对TOA定位误差具有较明显的抑制作用,可以实现TOA方法在矿井NLOS环境中的有效应用.关键词:矿井定位;卡尔曼滤波;NLOS;参数拟合;TOA;应急救......
. The optimum conditions under which the Mn and Fe recoveries were the highest and the time and temperature were the lowest were determined using statistical analysis and analysis of variance (ANOVA... was fitted on the magnetic stirrer. The reactor had two entrances. Every entrance was considered for special purpose that consisted of temperature measurement, feed entrance and condenser. Temperature could......
. When Method II is applied to a large-scale membrane stadium structure, it is found that this new method can quickly make the second principal stress of one way wrinkled elements zero, and make the two principal stresses of two-way wrinkled elements zero as well. It could attain the correct load responses right after the appearance of wrinkled elements, which indicates that Method II can be applied......
was applied, and the experimental data based on the central composite experimental were acquired. Then, the response surface model (RSM) was set up and the results of the analysis of variance (ANOVA) show......
入1. 5%碳酸钠会减缓AAS各龄期水化进程;加入3%氢氧化钙,1. 5%和3%氢氧化钠能分别加快AAS 1 d和3 d内的水化进程,但均会降低28 d的水化进程.此外,根据ANOVA方差分析得到的回归方程,提出了利用激发剂种类和比例来调节及控制AAS水化进程的技术途径.关键词:碱矿渣胶结材;复合激发剂;抗压强度;水化进程;......
and the resistance to machining-induced cracking were independent of the loading rate(ANOVA,p>0.05).The elastic and plastic displacements depended on the loading rate through power laws.This loading......
学报, 2018, 28(1): 31-38. LIU Zheng, CHEN Tao, CHEN Zhi-ping. Effects of two-way electromagnetic stirring on solidified microstructure of semisolid A356 aluminum alloy[J]. The Chinese Journal... and Technology, Ganzhou 341000, China) Abstract: A356-La aluminum alloy ingot prepared by composite technology of low superheat pouring, two-way low-frequency electromagnetic stirring and rare earth......
