Abstract:The partial differental equation of nonlinear vibration of a suspended power line for consideration of initial degree relaxation is derived and a ordinary differential equation is obtained by using the Galerkin procedure. The an be found the approximate solutíons of nonlinear vibration responses of a power line under the harmoníc borces and pulse excitations. The influence of initial degree relaxations on the responses is analysed with some useful results.

Abstract:In this brief paper the computation formulas for the improved component mode synthesis of free-interface are derived with a clear conception of mechanics and by means of a simple and convenient procedure. Using an example for clamped beam，the validity of these formulas is tested.

Abstract:In this paper a dyeing method using organic dye is presented to detect the dimension and shape of surface crack under fatique progression. The results show that it is an effective method for detecting the depth of surface crack in Aluminium alloy thin-plate. Several other problems in elastic-plastic fatique progression of surface crack. such as the yielding on back surface，the changing role of crack shape and the crack penetration points are studied. Finally the fatique data are treated by line-spring model and some conclusions are drawn.

Abstract:A method for automatic solution of flight behaviors of elastic sounding rocket at the atmospheric disturbances and for judgement of its architectural designs is described in this paper. The main feature of this method is synthetic computation and analysis of the elastic body in combination with the f1ight enviroment，As long as the parameters of the rigid rocket body at launching moment is inputted，the program can be used to continuously print out a larg amount of information of the elastic body，including attitude of flight，flexibility of body，top altitude of flight，trajectory parameteres and aerodynamic fores et al，according to which it is possible to define the best design and to improve on it.

Abstract:The following problems concerning the automatic design of optical systems by adaptive methods: how to choose the optimization indexes；how to define their target values and tolerances，and how to arrange a right order to correct them，are discussed in this paper.

Abstract:This paper presents determination of detonation pressure history in Trimonite 2 and pressure history in unsymmetrical collision of metal plates under the action of a slipping detonation using a manganin pressure gauge. In the experiment，it is found that initial part of detonation pressure history is a sharp pulse of short duration and the sharp pulse is direct1y followed by a pulse of longer duration which is approximate to rectangle，and the pressure history in collision of plates has two apparent steps.

Abstract:In this paper，a method for derivation of the statistical averaged potential is presented，with simplicity and clasity of its process.

Abstract:In this paper a new method of finding out all other primitive polynomials of degree m from a known one is proposed. Comparing with the conventional method，this new one can reduce greatly the amount.

Abstract:Reversible thermochromisms in the aqueous solutions of the lanthanide chelates with xylenol orange have been investigated by visual observation and spectro-photometry at pH 4.0. The color change factor Fc，defined as F_c=|⊿A₁十⊿A₂|， is suggested for characterizing the thermochromic extent of the chelates. The relations of the F_c value with the number of lanthanide elements，the ionic radii and the number of 4f-electron of the Ln(Ⅲ)-ions，which shows remarkable "double W" effect，have been studied and explained by"hole theory".

Abstract:Several important issues of developing SIMs including tagged data structure representation，design of instruction set，compiling problems，sharing and/or copying，memory management and implementation of some critical built-in Predicates are presented in this paper. The important role of the development of SIM in the new generation computer researches，the feasibility and the necessity for China to do research on this field are also analysed in it.

Abstract:This paper describes the asymptotic and oscillatory properties of solutions of initial boundary value problems of linear and semilinear parabolic equations of second and fourth order.

Abstract:In this paper the multiple solutions of a class of semilinear elliptic equations are discussed with critical point theorem and Hilbert space method.

Abstract:In a recent international conference on Game Theory，Professor Shapley presented a new bargaining set concept，which avoid bargaining among players，and so can be generalized to the games with infinitely many players. In this paper，the new bargaining set for continuous convex games is proved to be coincided with the core，thus the main results of [1] and [2] may be generalized to a great extent. As a by-product of our proof，a new generalization of Hahn decomposition theorem in measure theory is obtained.

Abstract:A final report is presented for the "Vega-l" sustainer ignition device development process inc1uding igniter arrangement and the formulations，proper partic1e size and necessary weight of used ignition material as well as problems on the configuration and processing of bust diaphragm mounted on the nozzle.

Abstract:An improved method called spatial smoothing-criteria of information theory is presented based on W.Wax and T.Kailath's criteria of information theoretic used for estimation of the number of noncoherent sources. Compared to the WK's method，this improved one can be used to estimate the number of coherent sources and to raise estimating accuracy in case of high correlation，small-angle-separation or low SNR. The power spatial smoothing-information theoretic criteria method is also presented in order to obtain higher accuracy. Simulation results have been proved to be of the effectiveness of the improved method.