土质滑坡相似材料试验设计理论及评价方法研究

通过对土质滑坡相似材料试验设计理论和试验结果评价体系的研究，比较了常用试验设计理论的优缺点。指出均匀设计在相似材料试验研究中的优越性，并提出一套与均匀设计配套的试验数据处理理论和试验结果评价体系，可供滑坡相似材料试验设计参考。     

均匀设计在遗传算法中的应用研究

通过分析均匀设计和遗传算法的内在关系，指出从某个角度上可以把均匀设计看作是遗传算法的一种特例，并针对遗传算法初始参数众多、难配置的问题，提出了利用均匀设计优化配置选择参数的方法，在一定程度上可以避免遗传算法参数配置的盲目性．仿真试验结果证明了该方法是合理、可行的。     

阀控式铅酸蓄电池的维护

对阀控式铅酸式蓄电池的维护工作进行了初步探讨。     

精密铜带圆盘纵剪机

通过对精密铜带圆盘剪切机的工作原理和工艺过程进行研究，对引进的美国剪切机进行了技术改造，设计制作了新的装置，实现了软态铜带的剪切。     

SC-3000智能均流测试仪在整流供电系统中的应用

论述了均流仪在整流机组均流管理中的功效.     

Development and implementation of a NURBS curve motion interpolator

This paper deals with the issues of development and implementation of a real-time NURBS interpolator for a six-axis robot. Using an open-architecture controller system as a testbed, a real-time NURBS curve interpolator was developed, implemented and tested. Sample runs were conducted with the resulting trajectories measured in real-time during robot motion. The resulting trajectories are analyzed, discussed and compared with those from a commonly used point-to-point approximation technique. The real-time NURBS curve interpolator's feasibility, advantages and related issues are also discussed.     

An Efficient Code-Based Voxel-Traversing Algorithm

The paper considers an efficient approach to traversing a uniformly-subdivided space pierced by a line segment. A voxel, as the basic constituent element of the uniformly subdivided space, is restricted to having the form of a cube. The algorithm works in two steps. In the first step, the so-called Bresenham voxels are identified and, by comparing their position codes, their type of connectivity is determined. To achieve the required connectivity between neighbouring voxels, the second step of the algorithm is applied to find the missing voxels. In this way, the algorithm efficiently switches between face-, edge- and vertex-connectivity. Although the algorithm works with oating-point precision, it is extremely computationally efficient, and tests of speed compared with the Müller, Cleary & Wyvill, Amanatides & Woo, and Zemčik algorithms are described.     

Robot control and parameter estimation with only joint position measurements

Most adaptive control schemes for rigid robots assume velocities measurements to be available. Although it is possible to measure velocities by using tachometers, this increases costs and the signals delivered may be contaminated with noise. Since the use of encoders allows to read joint position pretty accurately, it is desirable to estimate joint velocities through an observer. This paper presents an adaptive scheme designed in conjunction with a linear observer. Boundedness of the estimated parameters and uniform ultimate boundedness for the tracking and observation errors are guaranteed. Experimental results are included to support the developed theory.     

基于企业门户统一认证系统的设计与实现

企业门户的统一身份认证可以解决多个系统独立认证的弊端,消除企业中的信息孤岛。文章根据企业中信息系统的特点和项目的时间和成本要求,对基于企业门户的统一认证系统进行了设计与实现,对其他企业门户项目中的相关工作具有一定的借鉴作用。     

Integrated relative position and attitude control of spacecraft in proximity operation missions

This paper addresses an integrated relative position and attitude control strategy for a pursuer spacecraft flying to a space target in proximity operation missions. Relative translation and rotation dynamics are both presented, and further integratedly considered due to mutual couplings, which results in a six degrees-of-freedom (6-DOF) control system. In order to simultaneously achieve relative position and attitude requirements, an adaptive backstepping control law is designed, where a command filter is introduced to overcome "explosion of terms". Within the Lyapunov framework, the proposed controller is proved to ensure the ultimate boundedness of relative position and attitude signals, in the presence of external disturbances and unknown system parameters. Numerical simulation demonstrates the effect of the designed control law.