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Considering the algebraic immunity (AI) as one of the most important characteristics that evaluates the resistance against algebraic attacks, the construction methods of Boolean functions which have good performance both on algebraic and other form attacks have received a lot of attention in the cryptographic research area. In this paper, we study certain properties of Boolean functions especially...
This work simulates lateral motion in magnetic levitation (maglev) transportation systems using a novel electromagnetic guidance device. First, current control modules, a pulse-width-modulation (PWM) controller and buck converter, are used for driving electromagnets. The electromagnetic guidance system, which has two current control modules, a gap controller, and a bipolar switching mechanism, controls...
In free-flying space robotic system, the thruster jets will compensate the disturbances induced by manipulator to keep the attitude of the robot base invariable. For saving the expensive fuel that thruster jets cost, point-to-point path planning method in joint space for minimizing base reaction is proposed in this paper. The sinusoidal and polynomial functions are used here to parameterize the joint...
Combining Bang-Bang, fuzzy and integral control, a new hybrid controller is proposed for controlling a nonlinear, complex electro-hydraulic system with large moment of inertia of plant. Bang-Bang is adopted to reduce big error rapidly. Fuzzy and integral control enhances robustness of the controller, and eliminate steady-state-error completely. Integral coefficient is changed by a subordinate fuzzy...
In order to improve intellectuality and performability of computer-aided process planning system, the status and capability of manufacturing resource in the job-shop should be considered, and the sequencing decision of process plans should be realized under the relevant constraints. In this paper, BP neural network was applied to select the manufacturing resources in the process of generating process...
The core reaction of DNA computing is the specific hybridization, which may results in incorrect or undesirable computations. Therefore, so far much works have focused on designing the DNA sequences to make the molecular computation more reliable. In this paper, we formulate the DNA sequence design as a multi-objective optimization problem and solve it by Genetic Algorithm (GA)/Particle Swarm Optimization...
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