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1991 Vol. 13, No. 3
Display Method:
1991, 13(3): 225-231.
Abstract:
It is suggested to study the neural network in the view of neural functions. The memory function of network is studied and its mathematical model is given. The model is synthesized by a peicewise-linear resistive network. The network is of many prope...
It is suggested to study the neural network in the view of neural functions. The memory function of network is studied and its mathematical model is given. The model is synthesized by a peicewise-linear resistive network. The network is of many prope...
1991, 13(3): 232-241.
Abstract:
From practical point of view, the Siegenthaler s definition of correlation immunity is improved. Under the new definition there exists no trade-off between the generalized correlation immunity and linear complexity of the output key streams. The famo...
From practical point of view, the Siegenthaler s definition of correlation immunity is improved. Under the new definition there exists no trade-off between the generalized correlation immunity and linear complexity of the output key streams. The famo...
1991, 13(3): 242-249.
Abstract:
Two k-hyperconnection expressions of a general k-order cofactor Y(ij) are presented for the indefinite parameter matrix Y of a linear system, and based on it, a decomposition theorem of Y(ij) is dcrived. By this theorem, the multi-level tearing and a...
Two k-hyperconnection expressions of a general k-order cofactor Y(ij) are presented for the indefinite parameter matrix Y of a linear system, and based on it, a decomposition theorem of Y(ij) is dcrived. By this theorem, the multi-level tearing and a...
1991, 13(3): 250-254.
Abstract:
Based on image decomposition and adaptive hybrid vector quantization, a high-compression image coding scheme is presented. The coding method of low-pass com-ponent by adaptive hybrid vector quantization is described in detail. As far as low-pass com-...
Based on image decomposition and adaptive hybrid vector quantization, a high-compression image coding scheme is presented. The coding method of low-pass com-ponent by adaptive hybrid vector quantization is described in detail. As far as low-pass com-...
1991, 13(3): 255-262.
Abstract:
Binary code signal have been widely used in various radars due to their simple implementation, but the selection of the binary codes with high compression ratio and low sidelobes is not well solved, because of the difficult processing in mathematics ...
Binary code signal have been widely used in various radars due to their simple implementation, but the selection of the binary codes with high compression ratio and low sidelobes is not well solved, because of the difficult processing in mathematics ...
1991, 13(3): 263-270.
Abstract:
A new approach called perrurbation theory is presented to analyze the electri-cal impedance for medicine. The formula of constant voltage and constant current field per-turbation, modified G-L formula and the formula of electrical field perturbation ...
A new approach called perrurbation theory is presented to analyze the electri-cal impedance for medicine. The formula of constant voltage and constant current field per-turbation, modified G-L formula and the formula of electrical field perturbation ...
1991, 13(3): 271-277.
Abstract:
In general, in free electron lasers there two kinds of stimulated radiations. FEL radition and cyclotron ralition. It is shown theoretically, if the initial transverse velocity of electron is large and the selected parameters for FEL are not suitable...
In general, in free electron lasers there two kinds of stimulated radiations. FEL radition and cyclotron ralition. It is shown theoretically, if the initial transverse velocity of electron is large and the selected parameters for FEL are not suitable...
1991, 13(3): 278-285.
Abstract:
The scattering properties of the composite cylinders are discussed. Some integral equations are established, then the monent method is used to solve the surface currents under TM and TE polarization separately. After appropriate arrangement, the comp...
The scattering properties of the composite cylinders are discussed. Some integral equations are established, then the monent method is used to solve the surface currents under TM and TE polarization separately. After appropriate arrangement, the comp...
1991, 13(3): 286-292.
Abstract:
Based on improved charge conttrol model and combining GSW velocity-field equation, a series of analytical solutions for the static characteristics of HIGFETs such as TD-VD-VG,Gm and CG are derivel. The results of calculations are compared with experi...
Based on improved charge conttrol model and combining GSW velocity-field equation, a series of analytical solutions for the static characteristics of HIGFETs such as TD-VD-VG,Gm and CG are derivel. The results of calculations are compared with experi...
1991, 13(3): 293-298.
Abstract:
Motion of an electron across an alpha magnetic mirror system with arbitray incident conditions is studied. It is found that when the central trajectory is given, any other trajectories can be distinguished as normai and abnormal ones. Electrons movin...
Motion of an electron across an alpha magnetic mirror system with arbitray incident conditions is studied. It is found that when the central trajectory is given, any other trajectories can be distinguished as normai and abnormal ones. Electrons movin...
1991, 13(3): 299-303.
Abstract:
A graphic svstem of superconductor models developed by the aid of a basie IBM-PC microcomputer is presented. This system has been designed to store informarion on structures and properties of superconductors and related compounds discovered so far, t...
A graphic svstem of superconductor models developed by the aid of a basie IBM-PC microcomputer is presented. This system has been designed to store informarion on structures and properties of superconductors and related compounds discovered so far, t...
1991, 13(3): 304-307.
Abstract:
A concept of gencral-node fauh diagnosis of switched capacitor (SC) networks is introduced. A simple, exact and effective algorithm is presented with emphasis on the advantages of using general-node concept. The diagnosability of SC networks is studi...
A concept of gencral-node fauh diagnosis of switched capacitor (SC) networks is introduced. A simple, exact and effective algorithm is presented with emphasis on the advantages of using general-node concept. The diagnosability of SC networks is studi...
1991, 13(3): 308-312.
Abstract:
The problems for calculating EM energy absorption by lossy dielectric scatterer irradiated by plane wave are discussed. The factors effecting the accuracy of com-putation are discussed. The calculated resuhs of EM energy absorption and its distributi...
The problems for calculating EM energy absorption by lossy dielectric scatterer irradiated by plane wave are discussed. The factors effecting the accuracy of com-putation are discussed. The calculated resuhs of EM energy absorption and its distributi...
1991, 13(3): 313-316.
Abstract:
The natural freqencies of a perfectly conducting sphere, a prolate spheroid (1:1:2) and a ellipsoid (1:2:3) are numerically solved by moment method with the magnetic field integral equation. The results reveal a splitting of natural freqencies when a...
The natural freqencies of a perfectly conducting sphere, a prolate spheroid (1:1:2) and a ellipsoid (1:2:3) are numerically solved by moment method with the magnetic field integral equation. The results reveal a splitting of natural freqencies when a...
1991, 13(3): 317-323.
Abstract:
The singular integral equation technique is used to determine the normal modes of propagation in asymmetrical bilateral finlines. Comparing with the published results, the present method is an accurate method and needs less coniputer time.
The singular integral equation technique is used to determine the normal modes of propagation in asymmetrical bilateral finlines. Comparing with the published results, the present method is an accurate method and needs less coniputer time.
1991, 13(3): 324-326.
Abstract:
The three-phase saturations of oil, gas and water system in cores are importam data for analyses and calculations of oil-field. According to the principle that microwave energy through a core is strongly absorbed by water content, while oil, gas and ...
The three-phase saturations of oil, gas and water system in cores are importam data for analyses and calculations of oil-field. According to the principle that microwave energy through a core is strongly absorbed by water content, while oil, gas and ...
1991, 13(3): 327-331.
Abstract:
Experimental investigation was carried out for the dynamic I-V characteris-tics of the bidirectional negative resistance transistor (BNRT) in the relaxation oscillation circuit. Some properties of the BNRT relaxation oscillation circuit were also ana...
Experimental investigation was carried out for the dynamic I-V characteris-tics of the bidirectional negative resistance transistor (BNRT) in the relaxation oscillation circuit. Some properties of the BNRT relaxation oscillation circuit were also ana...
1991, 13(3): 332-336.
Abstract:
The annealing behaviour and property of irradiation donor (ID) in NTDCZSi have been studied by using the Hall effect measurements and TEM. In addidon, the effects of a variety of neutron doses and impurity (oxygen and carbon) concentrations on the fo...
The annealing behaviour and property of irradiation donor (ID) in NTDCZSi have been studied by using the Hall effect measurements and TEM. In addidon, the effects of a variety of neutron doses and impurity (oxygen and carbon) concentrations on the fo...
