Abstract:This paper discusses the 3-point error separating technique for on-line measurement of straight line error motion of an ultra-precision lathe and straightness of the generatrix of turned works. The accuracy of the measuring system is obtained about 土0.078μm (土3σ). Furthermore，a closed loop，micro-computer control system is built up to process the error data and excite a servo-mechanism for Compen sating the error motion，and the straightness of the turned work is increased to 0.5μm/160mm，that is，Compensating increases straightness by 50%，at least than before compensating.

Abstract:This paper discusses an industrial robot wrist consisting of double-arm planar differential planetary gear train. The result of computer simulation and its experimental model show that the wrist has a large movement and is mechanically efficient、compact and simple. The wrist can be used in the ndustrial robot for spray painting and welding.

Abstract:Four se1f-tuning control schemes for robotic manipulators are developed in a unified frame. Simulation results of these schemes on a 3-DOF manipulator and estimations of their computational quanta are presented to demonstrate the effectiveness and simplicity of these schemes and to make comparisons among them.

Abstract:The reaction Control system (RCS) of large spacecraft (space-shuttle and space-station) consists of multi-jet，so as to have better redundance. This paper presents a control law to this system，which is concerning in constructing and distributing of control command. after programming，it is facile for computer operation in real-time made on board.

Abstract:In this paper，optimal control problem of time-delay digital control system has been studied using discrete orthogonal polynomials. The relationship between the state coefficient vector and control coefficient vector is obtained. The discrete orthogonal polynomials are used to modify the optimal equations into a set of linear algebraic ones for the approximate solutions of optimal state and control variables. Finally，a practical example is given by using discrete Chebyshev polynomial，discrete Laguerre polynomial and discrete Legendre polynomial，and the results obtained are satisfactoy.

Abstract:A recursive formula of toeplitz determinents is derived in this paper. An order determination method which is excellent in amount of calulation is obtained by applying the formula to the rank determination of Toeplitz arrays. Its practical several examples are given later，and finally the simulated result shows the feasibility of the algorithm.

Abstract:The control problem of the magnetic suspension vehicle model is investigated mainly in this paper on the basis of analysing vehicle mathematical model，using signal transformation technique，decoupled control system is realized. The poles of the closed loop system are assigned from the specification requirements for decoupled control system. The feedback matrix F is given by state feedback，the controller is designed. The problem of the practical realization of the magnetic suspension vehicle control system is investigated.

Abstract:When a high-power pulsed Laser beam interacts with a target in the time of the order of microsecond，the experimental results show that the Laser-supported detonation wave yet occurs due to a sublimation of the target in a vacuum background. A compression wave generated by this Laser-supported detonation wave propagates into the target，this wave is a significant factor for damage of the target，but the recoil pressure of vaporization，the thermal stress and ablation damage of the target to irradiation by the high-power pulsed Laser are also factors that can not be neglected. Experiments also show that the follow-up Laser radiation can be shielded by the Laser-supported detonation wave when the Laser-supported detonation wave occurs in the vacuum background.

Abstract:This paper discusses the calculation of ore reserves and grade distribution using the modified three-dimensional kriging method. An efficient program for calculating ore reserves and distribution of grade is given. In this paper are presented a new method which can determine the boundary of an ore deposit by nets and imaginary drills，Konic method for calculating Variogram. The results obtained show that these approaches have a good effect on raising accuracy and hastening convergence.

Abstract:CRMX86 operating system is developed on the basis of improving iRMX86 real-time，multi-task operating system. CRMX86 provides a set of functions of the Chinese information processing，has the advantage of high efficiency and is configurable. CRMXDBMS is a relational database management system supported by CRMX86 operating system. It is even better than dBAS-E-Ⅲ. CRMXDBMS has two ways of enciphering user-data and a nice user interface. In this paper the basic structures and main techniques in designing CRMXDBMS system.

Abstract:Many problems are denoted by minf(q)，where q is any permutation of 1，2，…，n. In conference [1]，every algorithm is presented in full and analysed comparatively. An algorithm is obtained by setting about set mapping in this paper. Based upon this algorithm，every permutation may produce an order number and vice versa，and Complete permutation can be generated from any permutation given.

Abstract:Kohlberg and Tauman have characterized some class of games in pNA，a Banach space of great importance in Nonatomic Game Theory. Attacking the problem in another direction，this paper gives a characterization of games in pNA'，a Banach space larger than but similar to the space pNA.

Abstract:Vector Quantization (VQ) for speech coding is an advanced technique with great practical value. In this paper a simple description of the VQ's principles is presented. Next，VQ for speech waveform coding，speech parameters coding and their mixed form coding are described respectively. Then，an overview of them during the past few years and the prediction of their developing tendency are presented.

Abstract:An overview of rarefied gas dynamics is presented in This paper. First we introduce the method for calculating rarefied gas dynamic force's coefficents when the incident flow is in Maxwellian equilibrium. Then we present the various methods of approximate solution of Boltzmann's equation when the incident flow is not in equilibrium. Last，we brief some semi-experience formulas used to calculate the rarefied aerodynamic characteristics of simple bodies.