System Approach to the Integration of Military and Civilian Productions in China

The author uses system analysis to provide system thinkings of the deepening reform of the management of defence science, technology and industry (DSTI) and investigate the system definition of DSTI, the system reform target, system operational mechanism, institutional structure, coordination and control functions and the orientation of conversion in China.     

Some Equivalence Transform Methods for Simulating Models in Control Systems

In this paper two classes of equivalence transform methods for solving ordinary differential equations are proposed. One class of method is the equivalence integral transform method for special differential algebraic problems. The advantage of this class of method is such that the amount of work calculating one integration with parameters becomes that of two interpolations, when the system of nonlinear equations is solved on the right hand side function. The other class of method is the equivalence substitution method tor avoiding calculating derivative on the right hand side function. In order to avoid calculation derivatives, two equivalence substitution methods are proposed here. The application instances of some special effect of the equivalence substitution methods are given.     

纳米技术与发展中国家

作者将“nano*”与世界银行确定的每个经济类主题词组合检索，结果发现发展中国家普遍在从事
纳米技术研发。进一步研究表明，尽管发展中国家纳米技术的研发能力随着合作和信息利用的加强而提高，
但是这些国家已经偏离了纳米技术的“社会开发”这一通常被认为是最适于发展中国家的研究宗旨。另外，
对卫生保健相关专利的分析证实，各国实力严重不平衡，存在所谓的“纳米鸿沟”现象。在发展中国家中，
中国拥有的专利权所占份额很高，因此“纳米鸿沟”不仅存在于发展中国家和发达国家之间，在发展中国
家也同样存在。发展中国家的研发水平较低，纳米技术有可能走向以往导致全球技术大分裂的技术老路。     

A Parallel Algorithm for Corner Detection on Object Contour

; A new parallel algorithm for corner detection on object contour is presented in the paper. In this algorithm whenever a point (pixel) is scanned, the k direction codes between the two sides of the point, which is on the edge of an object, are obtained by k-step forward and backward boundary tracking. A comer is determined by the sum of the difference between the two weighted code chains. Note that the whole chain code sequence or boundary of an object is not necessary to be extracted at all in this algorithm, and the corners are obtained immediately once the image is scanned, furthermore, what humans perceive as corners can be detected and localized by this algorithm.     

The Configuration Optimization for Multilimbed Robots with the Viewpoint of Maximum Loading Capacity

This paper presents a method for optimizing the configuration of a multilimbed robot (the robot with both arms and legs) which works with a big load. A least-effort criterion is proposed as the base of optimization. When the applying Cartesian force and the task point are given, the best configuration of the robot will be easily found through a series of imaginary motions of the robot and some simple computations. The imaginary motion varies with the working environment related to the construction of the robot, the task point and the force direction. The working environment could be predicted by the proposed inequalities, so that the way of motion could be decided in advance.     

Recent Advances in Research of the Distributed Parameters Control System with Moving Boundary

This paper presents a brief summary of the three development stages of investigation on the transpiration cooling and its control for aircraft, missiles and electromagnetic gun, then the control problem of the distributed parameters system with a moving boundary is derived. It introduces the mathematical model of the transpiration cooling control, its control characteristics, and the present situation of the experimental and theoretical study on this problem. This paper also describes the main study results and the existing problems. The prospective application is also reported. The major references in every developing stage are listed systematically for further study.     

A New Design Method for the Octave-Band Stripline Circulators

In this paper, a new design method for high performance octave-band stripline circulator is giv     

阻燃木材热降解及阻燃机理的研究

将木材用无机硼化物及含磷化合物进行阻燃处理，所得阻燃木材采用热分析、锥形量热分析研究其热解行为，用氧指数、剩碳率、热释放速率和有效燃烧热等参数表征它的阻燃性能，并用Broido方程计算木材的动力学参数热解活化能的变化。通过比较未处理木材和硼化物、含磷化合物处理木材的热解行为、阻燃性能及热解活化能的变化，初步探讨硼化物及含磷化合物处理木材的阻燃机理。     

A High Speed Signal Processing Machine -Its Architecture, Language and Compiler

A systolic array architecture computer (FXCQ) has been designed for signal processing. R can handle floating point data at very high speed. It is composed of 16 processing cells and a cache that are connected linearly and form a ring structure. All processing cells are identical and programmable. Each processing cell has the peak performance of 20 million floating-point operations per second (20MFLOPS). The machine therefore has a peak performance of 320 M FLOPS. It is integrated as an attached processor into a host system through VME bus interface. Programs for FXCQ are written in a high-level language -B language, which is supported by a parallel optimizing compiler. This paper describes the architecture of FXCQ, B language and its compiler.     

Input Admittance and Current Distribution of Infinitely Long Circular Cylindrical Antenna Driven at Center

In this paper, by change of integration path in complex spectrum domain and by defining input admittance as the ratio of complex radiated power to amplitude of square of voltage across the gap, new expressions of admittance (valid for all frequencies ) of infinitely long cylindrical antenna with and without conducting ground are obtained. Meanwhile corresponding formulas of current distribution are derived in detail. Some numerical computations are also given.