Modification of Boundary Parameters and Fluctuations by IBW and LHCD in the HT-7 Tokamak

Measurements of boundary parameters and their fluctuations have been performed in ohmic (OH) plasma and Ion Bernstein Wave (IBW) and Lower Hybrid Current Drive (LHCD) enhanced confinement plasma using a pneumatically driven Langmuir probe array on HT-7 toka-maX. In the enhanced confinement plasma~ the gradients of electron density and temperature become higher and a transport barrier comes into being in the vicinity of the limiter. The boundary potential shows a clear modification in the same region. The fluctuation levels are significantly depressed and the coherences between fluctuations are reduced evidently in the enhanced plasma.Meanwhile, we obtained the spectral features and the poloidal phase velocity of fluctuations us-ing a two-point correlation technique and found obvious modifications of the turbulence and the poloidal flow. The results suggest that the improved confinement in the IBW and LHCD enhanced plasma is at least partially due to the modification of the boundary parameters and the suppression of the boundary fluctuations and fluctuation induced fluxes.     

24kV级汽轮发电机绝缘技术研究

介绍对24kV级汽轮发电机及线圈的绝缘材料和结构的研究，及其研究成果根据实际进行部分应用的情况。图2表5     

受限语言子集的理论研究和探索

本文在综述受限语言研究成果的基础上,提出受限语言子集的一种形式化描述模型,并给出其相应的语言特性和数学特性,就受限汉语子集的确定方法问题进行了理论研究和探索。作者希望本文提出的表示模型和确定方法能够引起有关的讨论,并在充分认识受限语言研究的必要性和困难的基础上,将其引向全面深入的发展。     

最小阶时分滤波器及其在运载体对准中的应用

设计一种时分降低滤波器用来进行运载体惯导系统的动态对准和传递对准，假定运载体惯导系统已标定的。在运载体水平直线运动的短时间内，两个二阶滤波以时分工作方式估计平台水平失调角，在消除水平失调角后，运载体在垂直与当地垂线的水平面内机动，此时用一个三阶（或四阶）滤波器来估计方位失调角，另外，在本文中给出该滤波器的数据压缩算法，来提高估计精度。     

在 AUTO CAD 中实现零件轮廓数控自动编程

介绍了在ＡＵＴＯＣＡＤ系统中用ＡＵＴＯＬＩＳＰ语言对图形实现数控铣自动编程的方法，实现图形交互式数控机床自动编程。     

Effect of AlP master alloy on grain refinement of primary silicon in eutectic Al-Si alloys

To obtain the finer primary silicon crystals, the proprietary Al-P master alloy was adopted to modify the eutectic Al-Si alloys and the most suitable modification process was made in the experiments. The SEM (Scanning Electron Microscope) and DSC (Differential Scanning Calorimeter) analysis indicate that the Al-P modifier has more advantages over Cu-P and Fe-P modifier in easily addition, no elemental alteration and less undercooling of primary silicon′s solidification, which suggests the Al-P master alloy is an effective modifier of eutectic Al-Si alloys.     

离心压缩机组冷态找正数据的分析与精确计算

针对在安装引进的离心压缩机组中发现的原机组冷态找正数据与实测值不符的情况，介绍了其试验的方法，并提出了一种行之有效的精确计算方法。用该方法计算了该压缩机组的冷态找正数据，并与实测数据作了比较。从而证明该计算方法的可行性及正确性。     

Temperature Induces Self-assembly of Silicon Nano/Micro-structure based on Multi-physics Approach

A three-dimensional dynamic model for nano/micro-fabrications of silicon was presented. With the developed model, the fabrication process of silicon on nothing (SON) structure was quantitatively investigated. We employ a diffuse interface model that incorporates the mechanism of surface diffusion. The mechanism of the fabrication is systematically integrated for high reliability of computational analysis. A semi-implicit Fourier spectral scheme is applied for high efficiency and numerical stability. Moreover, the theoretical analysis provides the guidance that is ordered by the fundamental geometrical design parameters to guide different fabrications of SON structures. The performed simulations suggest a substantial potential of the presented model for a reliable design technology of nano/micro-fabrications.     

运用多维画法几何理论解决线性规划问题

本文用计算机与多维画法几何理论相结合的方法，对地线性规划问题，给出了一种新的解法，文中包括理论述，计算方法，程序设计及计算实例等。