含酯氧基手性方酰胺基醇催化前手性酮不对称还原反应机理的计算研究

用量子化学半经验方法AMl对含酯氧基手性方酰胺基醇催化苯乙酮不对称还原的反应机理进行了计算研究，提出了合理的反应机理．结果表明，还原产物的手性是由恶唑硼烷／硼烷／苯乙酮加合物及相继的六元环过渡态所决定的．根据过渡态理论，计算得到反映立体选择性大小的理论e．e．值．     

铝电解槽焙烧用矩形高速燃烧器的研制

铝电解槽的焙烧对槽的正常生产和以后的槽寿命有着直接影响，燃料焙烧法具有加热均匀、升温速度容易控制、对扎缝和边部扎固糊的焙烧充分等优点，是一种非常有前途的新焙烧方法。而燃烧器的设计是燃料焙烧法的关键技术之一，在实验的基础上开发出一种矩形高速燃烧器，并对该燃烧器的结构进行了优化，研制的矩形顺具有点火容易、燃烧稳定、负荷调节比大燃烧完全度高、噪音低等特点，能完全满足铝电解槽燃料焙烧方法的要求，它的研制成功为铝电解槽焙烧新技术的应用提供了技术保证。     

储蓄凭条中手写体的提取与净化系统

给出了储蓄凭条手写体提取系统的设计与实现,包括预处理,建立模板,基线定位与去除,倾斜校正 处理,定位格去除和手写体净化分割等。重点讲述了图像二值化,手写体分割与净化算法。     

基于CSD量化的数字滤波器的设计

数字滤波器在数字信号处理中占有举足轻重的地位。针对当前滤波器资源消耗大的问题，仔细研究了基于CSD（Canonic Signed-Digit)量化的滤波器设计方法，并对以往的CDS量化过程进行了改进，提出了一种降低滤波器运算量的改进方法，给出了设计基于CSD量化的滤波器的参考意见。仿真结果表明：改进后的算法对滤波器频率特性有一定改善，系统硬件实现时的存储资源也有所减少。     

Open Contours Extraction of Rotational Surface Oriented to Layer Measurement

With layer-measured contours, an algorithm that can extract the contour segments from a rotational surface is presented. The extraction can be divided into two stages, i. e. the rough segmentation and the refinement. In the rough segmenting stage, an optimal contour matching method is put forward to find similar contour segment from another closed contour with respect to the seed contour. In the refining stage, an iterative way that can extract a circular arc precisely is presented based on parameters identification and contour-ends expanding/shrinking operation. The algorithm can extract the open contour segments from a rotational surface precisely, as demonstrated in the examples. Based on the work of this paper, further research, such as parameter identification of 3 - D surface and CAD model creation, can be conducted.     

Disaster Reduction Decision Support System Against Debris Flows and Landslides Along Highway in Mountainous Area

Highways in mountainous areas are easy to be damaged by such natural disasters as debris flows and landslides and disaster reduction decision support system (DRDSS) is one of the important means to mitigate these disasters. Guided by the theories and technologies of debris flow and landslide reduction and supported by geographical information system (GIS), remote sensing and database techniques, a DRDSS against debris flow and landslide along highways in mountainous areas has been established on the basis of such principles as pertinence, systematicness, effectiveness, easy to use, open and expandability. The system consists of database, disaster analysis models and decisions on reduction of debris flows and landslides, mainly functioning to zone disaster dangerous degree, analyze debris flow activity,simulate debris flow deposition and diffusion, analyze landslide stability, select optimal highway renovation scheme and plan disaster prevention and control ergineering. This system has been applied successfully to the debris flow and landslide treatment works along Palongzangbu Section of Sichuan-Tibet Highway.     

废弃钻井液减量化方法探讨

论述了废弃钻井液减量化的主要方法。通过这这些方法的具体运用,可有效减少废弃钻井液的产生量和排放量,减少对周围环境和地下水的污染,保护生态环境,使钻井作业达到法律法规和标准的要求,树立钻井企业形象,提高国内外钻井市场占有率和经济效益。     

一种基于体绘制的交互式实时虚拟内窥镜算法

为了实现一种更好的虚拟内窥镜算法，在分析虚拟内窥镜和体数据可视化方法的特点的基础上，提出了一种基于透视投影体绘制的交互式实时虚拟内窥镜算法。该算法运用了动态数据精简技术，提出了视点3D漫游路径的快速自动生成方法和交互式内窥显示方法，能方便医生实时观察与诊断。并对传统面绘制中的光照计算加以修改，应用于内窥体绘制过程，以生成3D效果逼真的虚拟内窥镜图像。在微机平台上实现的基于体绘制的虚拟内窥镜系统，验证了该算法的实时性和所生成图像的质量。     

缓冲器在高层楼供水系统中减振降噪应用研究

将缓冲器应用于高楼供水系统进行减振降噪,完成了理论计算和实验研究,应用结果表明:合理设计和安装缓冲器能够减少管路振动,降低噪声。     

聚类方法在警报数据分类与约简中的应用

提出了一个使用文本聚类方法进行警报数据分类与约简的处理框架.详细描述了警报特征向量的表示方法和直接聚类方法,以及警报数据的简约表示方法.