基于PXE技术的计算机实验室软件系统架设

PXE作为一种网络启动技术,目前得到了广泛的应用。本文介绍了PXE技术的工作原理,结合Symantec Ghost 10.0企业版功能,阐明利用PXE技术实现计算机实验室软件系统架设及维护更新的具体过程。     

Fractal Study on Raceway Boundary

  The raceway has been studied extensively both theoretically and experimentally. The raceway boundary is coarse and fragmentary, but all of previous studies are based on Euclidean geometry, which regards the dimension of raceway as an integer. The fractal method of calculating raceway size, which describes boundary with extremely irregular or fragmentary characteristic, is brought forward in physical model. The fractal theory is used to calculate the fractal dimension of raceway boundary and the precise surface area of ellipsoidal raceway boundary. The result shows that the surface area based on fractal is larger than that based on Euclidean. And the surface area increases with the rise of blowing rate.     

煤的组成,结构和性质对煤转化和制备的影响

在国内外已有的研究工作基础上，叙述了煤的组成、结构和性质时煤转化和制备的影响．提出了在煤转化过程的研究中应开展煤的基础研究．根据我国煤炭资源情况还提出今后有关煤的研究项目．     

Crystallization of NiTi shape memory alloy sputtering-deposition film

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A Novel Method of Recycling CO_2 for Slag Splashing in Converter

 Converter off gas, an important energy resource for steel enterprises is one of the weak points in the recovery and utilization of secondary energy resources. To improve the level of recycling converter off gas in steel plants, a novel approach to recycle CO2 separated from converter off gas or other off gas for the green slag splashing technique was developed, and the CO2 equilibrium conversion ratio of the green CO2 slag splashing in different technological conditions was calculated by HSC software. Furthermore, the experiments of CO2 injected into melting converter slag were carried out, and the influence factors of the green CO2 slag splashing technique were analyzed. The results showed that the carbon amount for smoothly CO2 slag splashing was about 4.0%.     

Electronic structures and properties of Ti, Zr and Hf metals

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一种新颖实用的非接触式微位移传感器

这里介绍的微位移传感器,采用目前国际上新颖的高灵敏度线性砷化镓霍尔元件,将微位移信号非接触地转换为该霍尔元件在相应磁场中的霍尔电势的电信号,从而克服了一般微位移传感器的缺点,同时通过单片微机技术的应用,使其尺寸更小、精度高,便于现场应用,既可测静态,又可测动态,而且也很容易的实现数