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method for testing cooling power of aqueous quenchants. This method employed the cooling curve test of a new sliver rod probe, which has a metal-sheathed thermocouple at its geometrical center...键词:Quenchant; Cooling Power Test; Cooling Curve Test; Silver Probe; Polymer Quenchant; [全文内容正在添加中] ......
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quenchants. This method employed the cooling curve test of a new sliver rod probe,which has a metal-sheathed thermocouple at its geometrical center. The experimental study has clarified that this probe... was used to check the response capability of the probe and system to the sudden change of temperature. These procedures are established according to the experimental investigation. This new test method......
法 中图分类号:P22 文献标志码:A 文章编号:1672-7207(2019)07-1696-08 Determination of regularization parameter in semiparametric model based on U curve method ZHOU Yan1, JIN... University, Tai'an 271018, China) Abstract: To solve the problem of the regularization parameter in the semiparametric model, the U curve method was researched as a regularization parameter selection method......
基于MATLAB的电化学滴定曲线导数变换的实现应海松1,张会红2(1.浙江省宁波市北仑出入境检验检疫局2.宁波大学 信息科学与工程学院,浙江宁波 315211)摘 要:利用MATLAB软件的命令行编程,一维离散小波的工具箱GUI功能和Simulink仿真三种方式,以电位滴定曲线为例,分别对电化学滴定曲线进行导数变换,以提高仪器检出信号和曲线突跃点确定的精度,为电化学定量检测提供一种有效的方法.此三种导数变换方式可以应用于一些基础电化学仪器的定量分析,尤其是对未配备相关计算软件的读数型电位滴定仪十分有效.本文所介......
for Nonferrous Metals,Beijing 100088, China ) Abstract: The time-temperature-property (TTP) curve of aluminum alloy 7050 was determined and the microstructure of the alloy under different processing was investigated. The results indicate that the nose temperature and incubation period of TTP curves is about 320 ℃, 1.7 s, respectively and the quench sensitive temperature range of TTP curve for 7050......
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Formability improvement and blank shape definition for deep drawing of cylindrical cup with complex curve profile from SPCC sheets using FEMDuc-Toan Nguyen1, 2, Duy-Khoe Dinh1, Hong-Minh Thi Nguyen1... then validated to establish their effects on the press formability. The optimum case found via simulation was finally confirmed through an experiment. In order to obtain the complex curve profile of cup shape......
Effects of compression ratio on variation of stresses and residual oil ofcake in pressing process of castor beans and its curve fittingLIU Ru-kuan(刘汝宽)1, 2, XU Fang-lei(许方雷)3, XIAO Zhi-hong(肖志红)2, LI... of stress increases nonlinearly and residual oil rate decreases with the increase of compression ratio. Lower residual oil of cake was obtained by pressing gently and frequently. Curve fitting on both......