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In recent years, different mathematical models have been used in comprehensive assessment calculation of various industries. This paper focuses on introducing the same-indefinite-contrary systemic assessment model of set pair analysis, which highlights its characteristics as strongly systemic and combination of qualitative and quantitative. In this model, the paper quotes the improved AHP method to...
With respect to practical Korean documents, structure characteristics and structure classification of Korean character and a new pre-classification method of character recognition were studied in this paper. Firstly, the concept of character structure distance and its simple calculation method were proposed to describe the difference between structures, according to the unique linearizability of each...
In this paper, a function testing size estimation model based on testing steps is proposed. The model applies to black boxtesting, and can be used in dependent test as a third party, This model is conducted overall analysis on COCOMO model. Its basic steps include: design test cases, sum total test steps, define the parameters in the model based on the pattern of model, define size factor, and calculate...
A grid connected PWM inverter was proposed based on DSP. Owing to the shortage of traditional inverter, to Mitsubishi PM100DSA120 for example, the basic electrical characteristics of IPM was analyzed. The inverter used pulse width modulation of space vector, and had many advantages such as clear system structure, small computation, and easy to achieve. At the same time, the control strategy of off-grid...
The plasma field distribution theory is studied through the establishment of Maxwell equations, experimental system of plasma antenna is designed and realized which based on glow discharge, then the 2 D games, 3 D games, vector field simulation is realized as well as gain characteristics of the antenna is analyzed. The results show that it should balance factors both plasma density, signal band and...
Based on inquired into overload, the Optical-Mechanical-Electrical System's working conditions of the projectile-loaded is analyzed, then the scheme to against heavy overload is designed. Finally the model is simulated and the experiments are accomplished. By simulation and experiments, the design in this contribution is proved reasonably and feasibly and could meet the requirements of the projectile...
Through the analysis of glass-wall cleaning robots research status at home and abroad, based on cleaning characteristics and requirements of such kind of smooth surface, a kind of pneumatic glass-wall cleaning robot is presented here. The robot which adopts unique three-position cylinder driving technique and embedded control system can crawl along the glass-wall and clean, and can overcome obstacles...
Vehicular Ad hoc Network (VANET) is a new technology which has attracted enormous attention recently. For the high mobility of vehicles, to design a stable routing protocol becomes an important issue. This paper proposes a Stable Routing Protocol (SRP) for highway scenario using segment-by-segment way. Each node in the SRP protocol maintains a k-hop vicinity routing table. When a source node and a...
Due to existing wide consistency between synergetic thought and neural network in associative memory, learning and pattern recognition, a new network called synergetic neural network arises at the historic moment which is different form the design method of traditional neural network .In the synergetic neural network, learn also is the study of weight matrix in a given training sample set. It's learning...
Traditional K-means algorithm is sensitive to the initial cluster centers, cluster results fluctuate with different initial input and are easy to fall into local optimum. This paper proposes an optimized genetic K-means clustering algorithm based on genetic algorithm. Use encoding, initialization, fitness function selection, crossover and mutation of genetic algorithms into clustering problem. Experiment...
Along with increase of the fluid parameters for the high-performance rotating machinery, the fluid induced force of the seals signally influenced the rotor system. In this paper, it mainly presents the effect of the fluid induced force on the rotor-bearing-seal system, and the nonlinear dynamic functions of the rotor-seal system are obtained with the Capone oil-film force model and Muszynska fluid-induced...
Time advance is a common simulation advancing method of training simulation system. The time step and simulation step of time advance mechanism are setting based on the velocities of the entities and the required time of model. There are varied models in velocity and time resolution under the condition of joint training, so single time step advance mechanism can't meet the requirement of the running...
This paper presents an improved harmony search algorithms(IHS) based on genetic algorithm (GA) for solving the blocking flow shop scheduling problem. The largest position value (LPV) rule is used to convert continuous harmony vectors into job permutations and an efficient initialization scheme based on a variant of the NEH heuristic (NEH_PWT) is adopted to construct the initial harmony memory with...
This article focuses on expanding the capabilities of a widely used software package: Hazard Prediction and Assessment Capability (HPAC). A way how HPAC users can utilize Google Earth to visualize their scenarios is demonstrated. This way can be leveraged to assist the modeler in improving the quality of simulations.
ZigBee wireless technology is a global standard of short-range and low-data-rate for wireless sensor networks. To reduce the redundant overhead and to conserve nodes' energy in energy-constrained and multi-PAN ZigBee networks, we propose in this paper a cross-layer energy-balanced inter-PAN routing algorithm (CEIPR). The proposed algorithm has three key functionalities: (1) establishes the multipath...
In order to realize measurement for digitally printed line's attributes in accordance with the international standard ISO13660, wavelet de-noising technique is used in pre-processing the CCD digital image with high resolution of hardcopy line prints. First, the line attributes and their measurement indexes are presented. Then, Symltes (SymN) and Coiflets (CoifN) wavelets with hard threshold method...
Aiming at the problem that the bearings of antenna drive organ on vessel easily occur failure, fault diagnosis method of bearing based on second generation wavelet packets is researched. First, original libration signal is decomposed using second generation wavelet packets and reconstructed by frequency band. Decibel value of Hilbert envelope spectrum for each band is calculated. Then, Decibel value...
Summarize and discuss the matrix-based sequential pattern mining method. Research data characteristics of intelligent tutoring system, and discuss how to use the sequence pattern mining to optimize the teaching resources, monitor the learning process of students, give real-time navigation, and improve the efficiency and quality of teaching.
Tibetan people living in the Qinghai-Tibet Plateau all and some of the edge of the Qinghai-Tibet Plateau transition zone, with its unique charm dimensions world, a culture of human civilization is indispensable. Tibetan user's access interest must be shown by his behavior, to analyze user behavior, you can determine the user's interest. The user may have different degrees of interest, proposed the...
Grade serves as a fundamental quantitative index, and the graded rough set model is a basic model. Thus, this paper aims to investigate an original logical difference in the graded rough set model. According to the specific logical requirement on the grade index, the logical difference is put forward based on the graded lower and upper approximation operators; the new concept has the practical logical...
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