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An effective method is proposed to formulate and solve a fuel-optimal control problem of satellite formation maneuver using continuous low thrusters. To ensure long-term flying formation and to save fuel practically possible, the final satellite formation is designed as the passive and periodic relative orbits accommodating the J2 perturbation. Based on the conditions of the passive and periodic relative...
The ancient Tangka image with reflecting Tibet art has been broken by the nature and human with different degrees The part-shed Tangka image is researched as a type of special breaking. After discussing the process of image inpainting and Tangka image inpainting, we give some direction of the development of Tangka image restoration.
To construct multi-stress accelerated life model, the traditional method utilizes the observed value acquired in the process of accelerated life test to build likelihood equations of accelerated model, however, the excessive parameters of multi-stress accelerated model will lead to the difficulty in solving pluralism likelihood equations. Based on the predictability and convergence of genetic algorithm...
A numerical approach to introduce excitations in finite-difference time-domain (FDTD) method that solves time-domain Schrodinger equation is presented in this paper. The proposed approach which used to solve electromagnetic waves incidence has its novel application in this study. It can ensure incident electron wave propagate in a designated direction. The corresponding three-dimensional FDTD formulations...
The purpose of this work is to develop a simple method to incorporate quantum effect in traditional finite-difference time-domain (FDTD) simulators. Which could make it possible to co-simulate system includes quantum structures and traditional components. In this paper, tunneling transmission coefficient is calculated by solving time-domain Schrodinger equation with a developed FDTD technique, called...
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