Abstract:In this paper, the cooling mechanism of the ablative cooling chamber of LRE is analyzed, and the main factors of its response to the temperature field are considered in full. The dispersed mathematical model is founded by using the central difference of six points. The wall temperature response is calculated and the ablative and erosive rate is obtained. The obtained result is for a reference in designing the thrust chamber.

Abstract:A high-temperature compressive extensometer and its calibration technique are presented and developed in this paper. This extensometer is suitable for measure of compressive displacemen for both high-temperature and room-temperature. It is simple in structure and easy to install. Its accuracy of measure is high. The extensometer is of low cost. light weight and practical use.

Abstract:In this paper，silica-phenolic resin and the asbestos-phenolic resin (5-Ⅱ^#) reinforced plastics are researched experimentally. Some pyrolytic parameters of these ablatíve composite materials are determined. The approximate formulae of the density and the pyrolytic rate function are delermined by the least square method. The data and these formulae used in this paper can be used as a basis for the calculation of the ablative materials.

Abstract:This paper presents a decentralized control approach to robotic rnanipulators. Every degree of freedom of the robotic system is served as a subsystem by using the decentralized method. First we synthsize N decentralized linear controllers from the decoupled subsystem models of the robotic system. In order to compensate for the influence of nonlinearity and coupling we introduce an adaptíve loop into every subsystem. The advantages of the control law proposed are: the controller is simple; calculation time is small; the decentralized control proposed is convenient to be implemented by parallel microprocessor system.

Abstract:Based on the block-pulse function method which is applicable only under zero initial value and zero-mean noises, a new identification method is developed for continuous-time systems from input-output data. As this method doesn't restrict initial values and noise average values to be zero，and needn't measure them at a11，it can be used for on-line identification. Its high identification accuracy is demostrated by simulation examples.

Abstract:This is a research paper on a new type absorbing material used SiC as a matrix. After many designed experiments with more than one hundred watings，many methods having been used in expanding the frequency band，one wating's absorption has achieved more than 10db with the absorbing width being 7-8GHz. The coating thickness is about 2 milli-meters and the specific gravity is less than 4.

Abstract:This paper descrìbes the design method and process of polymer-matrix composite materials used in the microstrip antennae. The materials can meet the need for the temperature of microstrip antennae. A set of microstrip antennas products are designed and manu factured，using the method. Through the test in their high and low temperature，they have been proved to be in agreement with the designing.

Abstract:The circle queue is a type of dynamic data structure. This paper gines a theorem to use the queue Under the environment of multiprocess. The theorem has been useol in the practical supercomputer software.

Abstract:In PROLOG database stored are clauses comprising PROLOG procedures and other long-term data structures represented as clauses. The implementation techniques for the manípulation of clauses are very important for PROLOG'S being a powerful AI language. It is even more the case when considering the storage of compiled clauses. With the supports of YH-SIM architecture，we propose a new structured organization for compiler-based PROLOG database，and present a simple and efficient management strategy that a procedure is the unit for claiming，and a clause the unit for dooming. Also different schemes for clause representation in the database are investigated briefly.

Abstract:Database operation built-in predicates constitute an important part of the non-logical components of Prolog. Consistent operation semantics are to be defined for these built-ins in order to realize easy transportations of prolog programs among different systems. In this paper，two choices of reasonable semantics are first discussed. Then are descrìbed schemes to implement the semantics under the framework of the WAM.

Abstract:In the paper，two schemes for attaching A/D's 、D/A's to real-time simulation-oriented computer systems are discussed first. Then a number of searching algorithms are analysed，and a new searching method--mapping search is presented. In it are also discussed the characteristics of computing tasks in continuous system simulations and the exploitation of parallelism of these ones. After analysing the defaults of the architecture of AD-10,this paper points out that pure heterogeneous multiprocessor systems have many constraints on the exploitation of paral1elism of computing tasks in continuous system simulations. Better architecture should be based on homogeneous multiprocessor.

Abstract:The front end working station is an important part of the supercomputer system. It connects the front end computer and the main frame. The paper describes the functional and layered structure design of the station respectively. The communication protocol is a1so presented briefly. The front end working station has now been in use successfully.

Abstract:Compiling techniques with Vector are described based on GFT-FORTRAN Compiler.

Abstract:This paper is intended as a research on developing the concurrency between a driver and other layers of software in terms of the structure of physical machines. After a discussion of general driver，the driver implemented in an interconnection system is given.

Abstract:This paper discusses in detail the working principles of the micro-servomechanism for the system of measurement and compensation for the linear moving error of a precise lathe. The parameters of the micro-servomechanism by optimal design are also presented in it. An active circuit for high-votage discharge in the electrical driving source has been designed to accelerate the electrostrictive ceramal 481AQI's discharge for improving the system's frequency response. Finally，the static and dynamic machematical model of the system is established in this paper.

Abstract:This paper has proved the fact that the extended Vandermond determinant is not zero，this is the most important fact in proving the theorem for the general solutions of a linear homogeneous relation with constant cofficients in the case of repeated roots.