机械合金化制备金属难熔化合物

在介绍机械合金化特点的同时，重点研究和讨论了机械合金化制备金属难熔化合物的过程及机理，并认为机械合金化是制备难熔化合物及其材料的一种行之有效的方法。     

中小企业创业资源的形成机制研究

创业资源是创业的基础,创业过程的规律性和市场配置资源的基础作用影响和决定中小企业创业资源的内在功能和形成方式。对中小企业资源的形成机制进行了分析探讨,并分析了它们之间的内在关系。     

规范经营管理提高经济效益

通过3个电站的调研，对作为小水电企业而言，只有切实加强工程建设管理，实行项目法人责任制，就能确保电站工程建设达到设计要求、工程质量优良；提高电站自动化运行水平，更能保证电能质量、电网运行安全稳定、降低发电成本；进一步规范电站管理，对人员实行“工效挂钩、绩效挂钩”，才能进一步提升市场竞争力、提高经济效益。     

Dielectric modeling of transmittance spectra of thin ZnO:Al films

A dielectric model comprising band gap transitions and free electron excitations (Drude model) is successfully applied to simulate transmittance spectra of ZnO films doped with 0.5%, 1% and 2% Al. The Drude formula contains a frequency-dependent damping term in order to get a good fit in the visible spectral region. Useful physical parameters obtained from the fit are electron density and mobility within the grains, film thickness, band gap and refractive index. The optically determined film thickness agrees with that obtained with the stylus method within 2%. The optically determined electronic parameters are compared with those obtained by electrical measurements. Contrary to thin In₂O₃:Sn films, the Drude mobility inside the grains is similar to the direct current Hall mobility indicating more perfect film growth without forming pronounced grain boundaries. Maximum value is 35 cm²/V s. The effective electron mass is estimated to be about 0.6 of the free electron mass. The refractive index at 550 nm decreases with increasing electron density.     

发展是企业的根本出路

通过对中国铝工业发展历程的回顾以及与国外铝企业的比较，找出了中国铝工业存在的优势和差距。就中国铝工业应如何解决前进中存在的问题和今后几年的发展目标进行了探讨。     

Stability analysis on single-phase natural circulation in Argonne lead loop facility

One-dimensional linear stability analysis was performed for single-phase lead–bismuth eutectic (LBE) natural circulation. The Nyquist criterion and a root search method were employed to find the linear stability boundary of both forward and backward circulations. It was found that the natural circulations could be linearly unstable in a high Reynolds number region. Increasing loop friction makes a forward circulation more stable, but destabilizes the corresponding backward circulation under the same heating/cooling conditions. The characteristic wavelength of an unstable disturbance is roughly equal to the entire loop length.     

LD泵浦Nd：YVO4内腔倍频激光器获得120mW绿光连续输出

利用半导体激光器（ＬＤ）端面泵浦Ｎｄ：ＹＶＯ＿４和用ＫＴＰ内腔倍频的绿激光器获得了１２０ｍＷ连续、稳定的５３２ｎｍ绿激光输出。泵浦阈值Ｐ＿（ｔｈ）＝１６０ｍＷ，光－光转换效率η＿ｓ＝８．１％。换用激光腔输出耦合镜，在不加ＫＴＰ晶体倍频时，可连续输出１．０６μｍ的红外激光，输出功率为４５０ｍＷ，光－光转换效率为３１％。     

常温生产微粒状PVB树脂的研究

介绍了用常温法生产微粒状 PVB 树脂的新工艺,从而简化了传统法低温生产 PVB 树脂的工艺和设备,减少了设备投资,节省了动力和能源消耗,降低了生产成本。     

Thermodynamic Assessment of DyCl3-MCl （M= Na, K, Rb, Cs） Systems

Using the CALPHAD （Calculation of Phase Diagram） technique, the DyCl3-MCl （M = Na, K, Rb, Cs） systems were optimized and calculated. The modified quasi-chemical model in the pair approximation for short-range ordering was used to describe the Gibbs energies of the liquid phase in these systems. From the measured phase diagram data and experimental thermodynamic properties, a series of thermodynamic functions were optimized base on an interactive computer-assisted analysis. The optimized parameters and the experimental data were thermodynamically self-consistent. The optimized results were discussed.