Applied Mechanics and Materials Vol. 340

Abstract: Established a dynamic model of recrystallization dislocation, proposed MC algorithm simulation describing grain growth behaviors that can explain VSR eliminate component residual stress mechanism from the micro, which can provide an intuitive visualization. Used MATLAB programming grain growth of the grain in the different MC steps simulate images, to discuss the grain size distribution and the energy change in different MC steps, while compared the simulation results with the existing sample dislocation configuration electron microscopy photos around the VSR. It reflects the same trend, which can show that the MC method in numerical simulation of grain growth can fully reflect component microstructure evolution around VSR. Micro explains the VSR mechanism of residual stress relief member which provides intuitive visual basis.

Abstract: In the sports athletes in the material, often to from a series of comprehensive evaluation index of a player, material selection process involves many factors and check each other, this kind of complex evaluation, often are fuzzy, the fuzzy mathematical for this class of problems and provide a good solution. Based on the basketball athletes' physical form primary select material as an example, the grey fuzzy theory in sports material selection of application. The experimental results show that this study proposed grey fuzzy theory for basketball player of the selected method is feasible and effective.

Abstract: By making use of water as the sensitizer for triethylaluminium explosion, the contrast test was designed for dispersion of triethylaluminium explosion in water and air. It was observed by the high-speed photography that that triethylaluminium was burning and dispersing in air at a maximum dispersion speed of 27m/s, while triethylaluminium was mixed with water, the dispersion speed reached 60m/s. The range of flame was larger than in air horizontally and vertically. The test results show that the triethylaluminium sensitization was significant. After the test ended, the clear deformation of aluminum basin could be seen, which indicated overpressure occurred in the process of reaction between triethylaluminium and water. The contrast test of triethylaluminium explosion was performed in two cases of 50L and 30L water. The test result shows that appropriately increasing quantity and diameter of water facilitates detonation.

Abstract: The characteristic polynomial of a graph is defined as, where is the identity matrix and is the adjacency matrix of. In this work, we define the coalescence of two graphs with respect to edges, and show for the graph and in Fig. 2, which are obtained by coalescence of bipartite graphs around the six-vertex cycle. Moreover, we give ordering relations with respect to the largest Eigen value in the class of cat condensed hexagonal systems. These results generalize some known results on extremely hexagonal chains.

Abstract: With the infiltration of computer social field in recent years, the application of the one-chip computer is moving towards deepening constantly, drive tradition is it measure crescent benefit to upgrade day to control at the same time. The main anti-interference means difference within machine system carried on summary and elucidation to the hardware anti-interference and the software anti-interference from the single slice. The each part of CPUs reaction of interference signal from the single slice and measures of CPU anti-interference are concluded and summarized. Also a processing of breakdown to the system and the design of self-instauration procedure had been made expatiation and elaborate in detail.

Abstract: To analyze the causes of common-mode interference from the definition of common-mode voltage, and the combination of graphics using mathematical formula image illustrates the size of common-mode voltage. At the same time, to analyze the method and defects of common-mode interference in the traditional two-line balanced communication line. On this basis, a cost-effective solution circuit is proposed. The results prove that the circuit has the advantages of low cost, simple structure, convenient features.

Abstract: The scene of single laser beam light is too small for the smoke field testing and the synchronization problem also unavoidable when it works at scanning way. In order to insure the measurement precision for the disturbance effect of smoke to imaging detectors, it introduces the design and key principles of lasers array with multi small power same semiconductor laser after beam homogeneous enlarge shaping. It can measure 3.5m×3.5m smoke area which can full of scene of CCD (10o×10o) at 20m distance in the field testing smoke with 3×3 beam homogenous enlarge shaping laser array.

Abstract: On the demand of miniaturization of antenna, this paper presents a circular microstrip antenna whose part of its port is sealed. Changing part of its magnetic wall into electric wall, then a decimals mode which exist between andis proposed. Elaborating the theory of reducing the resonant frequency with Bessel functions characteristics and resonance formula of circular microstrip antenna. Using the HFSS for simulation, the resonant frequency of the antenna change from 3.0 GHz to 1.2 GHz. The results prove the reliability of theory analysis. The size could be reduced nearly 60% compared with ordinary antenna. The antenna has a simple structure and can be applied to engineering application.

Abstract: The forest fire has been threatening the forest ecosystem and has brought huge economic losses to humans. Traditional fire detection systems use ion-optical smoking type and other physical or chemical means to discover a fire, which is not suitable for outdoor forest fires with long-distance and large-area characteristics. This paper presents the early fire detection algorithm based on smoke dynamic characteristics and its main part includes smoke color model, dynamic feature extraction and fire area connected component analysis. Through standard video database performance testing and compared to the algorithm and the traditional fire detection method, we can achieve early warning of a fire and can effectively reduce false and negative rate of fire monitoring system.

Abstract: Though VR (Virtual Reality) technique is now applied in petroleum exploration & development, the state-owned petroleum companies have no IP (intellectual property) for such a VR system in China. Thus, it is necessary to study and develop a VR system for our petroleum companies. Based on our previous achievements in study of software and hardware technique, the concept of developing a multi-subject cooperating exploration center based on VR system is proposed in this paper. The design of interpretation software is mainly done and the further study for it is put forward.