1986(1):1-9.
Abstract:This paper introduces a testing method of the torsion of a big white rabbit radii and a small-size se1f-made torgue-angle-an automatic drawing device. According to torque-angle curves of the radii,the error of torque moment and the torsion angle is one percent and the error of torsional rigidity and energy absorbtion is two percent. The testing results show,there is certain difference in torsional properties between the rabbit left radius and its right radius in the normal condition,there is a more remarkable increase in the properties of magnetic therapy healing than those of natural hea1ing.
Song Yuhua , Zhao yijun , Zhang Zhijie
1986(1):11-16.
Abstract:Using our method,the diffusion coefficients of He-Ne、He-Ar、He-Kr、He-Xe gases have been calculated according to the interactions of noblegas atoms which had been calculated. The calculated results are in good agreement with experimental values, and the relative errors are all below 2 percent.
1986(1):17-29.
Abstract:The investigation about the problem of the control of the inverted pendulum was seriously made by the experts in automatic control early. The structure of cart-pendulum is mostly adopted nowadays. The author has studied some problems of digital control of joint inverted pendulum,another structure of the inverted pendulum,and implemented the computer stable control of joint inverted pendulum in two typical states and the computer control of Swinging-up. The experimental results are presented.
1986(1):31-44.
Abstract:Three problems in Miscel1aneous Sea Clutter Simulation have been dealt with and expounded. The first one is the processing of data obtaiues from Sea Clutter. The Softw are of data processing developed on the basis of least-square method gives the results in three forms-digits curves and formulas. The second one is to depict the build-up of the data base, Diskette is used to store a11 sorts of data with a view to shortening the time of response to cal1s prior to the real-time processing operation by the Simulation. The last one is about the management of the data bank. Here,sorftware is provided so as to facilitate optional retiese and storing of data when simulation process is gaining on.
1986(1):45-53.
Abstract:The concept of highly efficient moremode horn is examined in this paper. On the basis of reference [4] some results are computed and some general curves are given. A 12 GC flare-angle. changes moremode horn is designed by using these curves.
1986(1):55-62.
Abstract:DIV real-time display software is a dedicated software, realizing by digit-to-video display, Which converts graphic information with random-scan into TV signal in raster-scan. It performs real-time supervisory control display for task of launching an aircraft. The paper introduces its overall design and processing methods.
1986(1):63-73.
Abstract:The objective of this design is to a broadband microwave power transistor used in broadband solid state amplifier. This paper involves: 1)ideas of design; 2)calculation of attenuation of internal matching circuits; 3)computer-aided design of input and output impedance matching networks.
1986(1):75-82.
Abstract:A new method of rapidly signing single-crystal electron diffraction patterns in the cubic system has been described in this paper. There Are two important features of single-crystal electron diffraction patterns in the cubic system; 1.Rectangular arrangement of spots; 2.There is a mathematical relationship between the two adjacent edges of the rectangle. The value of the above mentioned features has been listed in a table at the end of this paper. The patterns can be signed rapidly by means of the above mentioned table. This new method is simpler than any other traditional ones.
1986(1):83-92.
Abstract:In order to increase the strength of D6AC steel to the ultra-high strength steel level with adequate ductility and toughness,orthonormal testing method was used. Only nine experiments were made and the materials expended in this method are less than that of conventional method. Moreover,in a short time the better technological condition of I.H.T(Intercritical Heat Treatment)was found out. Prior-heat treatment (Ouenching and high tempering)+795℃ quenching+low tempering. The values of the mechanical properties which would be attained possibly were pre-estimated under such conditions. Results show that the difference between the values of pre-estimated values and those measured in the experiment is very litt1e.
Zhou Jiayin , Yi Shuchun , Wen Jianguo
1986(1):93-99.
Abstract:This paper has studied the effects of the gall particle size,the leaching solvent,temperature and time on the leaching percentage while extracting tannin from Chinese gall; found out the best leaching conditions; examined the leaching percentage and the purity of products by using the phosphomolybdotungstic acid(hetero-poly acid) spectrophotometric method; identifined the products by using the IR spectrometry and thermal analysis.
1986(1):101-111.
Abstract:In this paper a parallel algorithm of the block diagonal pivoting method is given. The method of decomposing symmetric matrice is shown to be stab1e and the method is implemented on parallel computer. Computing result shows the parallel algorithm is ten times faster than the seria1 algorithm when n is greater than 100.
Jiang Zengrong , Zhao Dianyang
1986(1):113-122.
Abstract:In this paper,two algorithms of Fast Polynomial Transforms are developed. The number of times of addition needed for them is Ad=MN2log2N Then,the implementation of FPT on general computer is discussed and a detialed block diagram given. A FORTRAN program is also given in the appendix.
1986(1):123-131.
Abstract:In his scientific career of over half a century,Niels Bohr showed his strong creativeness and outstanding ability of creative thinking in the founding of the theory of atomic structure and the positivism of quantum mechanics as well as in the scientific philosophical thinking about the correspondence principle and the complementary principle. Just like the great achievements in the physics founded by him,the characteristics of Bohr's creative thinking will have tremendous in f1uence and eternal enlightenment in the human history of science. The four most remarkable characteristics of Bohr's creative thinking are,.synthesizing and bringing forth new ideas,being bold and quick-witted, philosophical thinking and group consciousness.
1986(1):133-137.
Abstract:This paper points out that the mathematical result of the corollary of the saddle point theorem is incorrect,and further are discussed the conditions about the existence of the saddle point.
1986(1):139-144.
Abstract:This paper discusses general ARMA models. The formulas have been developed about the relationship of the impulse response sequence of the models and their parameters {ai} and {bi},then a algorithm determining the order based on the impulse response sequence is given, and a fast algorithm for {ai} and {bi} is devloped by the formulas and determining order algorithm. At last,the simulation experiment is performed,it illustrates the algorithms are true.
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