Advanced Materials Research Vols. 179-180

Abstract: This paper introduced the fundamental types of Static Var Compensator (SVC) device and its typical circuit structures, analyzed the principles of SVC (TCR type), the typical structures of the main circuits and the corresponding control system, and the main functions of SVC devices. At last, the latest applications of domestic SVC devices in the field of electricity distribution network and the electricity transmission network are introduced.

Abstract: The three dimensional finite element model of the pavement has been built on the basis of elastic-plastic finite element method and the assumption of the layered system of asphalt pavement. The layered flexible pavement is composed of asphalt surface, granular base and cohesive soil subgrade and is acted by dynamic movement load. The simulation results show that vertical displacement of asphalt surface has the maximum value and reduces gradually with the improvement of the road depth. Vertical stress, longitudinal stress and transverse stress result in the fatigue damage of asphalt pavement together. The key factor is the alternating variation of longitudinal stress. The maximum longitudinal stress and the maximum transverse stress exist in the junction of the asphalt layer and the granular base. Furthermore, the maximum longitudinal strain and the maximum transverse strain are induced in the junction of the granular base and the soil subgrade.

Abstract: To improve the precision of gray modeling in forest fire and solve the problem of small date modeling, ER algorithm is proposed. Based on the senior introduced the robust estimation to gray modeling, this method interpolate the modeling date again. The method can achieve small date (3 dates) modeling. This research compared with three calculation methods: least squares method, least squares interpolation method and ER algorithm. According to the fitting precision, least squares method is 10.21%, least squares interpolation method is 1.08% and ER algorithm is 0.00%. That can be obtained by calculating ER algorithm has a good fitting effect.

Abstract: Removed due to plagiarism

Abstract: The thermodynamics and kinetics properties and mechanism of sorption process were studied for adsorpting tyrosine in aqueous solution with multi-wall carbon nanotubes (MWCNTs), and the adsorption isotherms at different temperatures were determined. The results showed that the adsorption of the tyrosine in aqueous solution obeys well with the Freundlich isotherm, The thermodynamic parameters indicated that the adsorption reaction was a spontaneous, exothermal and decreasing entropy process,and the adsorption process had an obvious physisorption characteristic.The pseudo-second-order equation provided the best correlation for the adsorption process, being in agreement with adsorption as the rate controlling step.

Abstract: The permanent magnet generator has small size, simple structure, light weight, low cost, simple process, and eliminates the need for rectifier generator excitation windings and easy problems of the collector ring and brush devices, etc, are widely application. In recent years, a variety of good performance permanent magnet generators have been developed, but these generators are AC power output and generally low, when load changes the output voltage changes greater. Through the magnetism of permanent magnet generator, using good performance electronic components, a new type of intelligent electronic controller is developed; using the electronic regulator and the developed generator, the DC electrical power for vehicles required is solved.

Abstract: An improved Mean-Shift-based Video vehicle tracking algorithm was proposed and which can improve the real-time and accuracy of the vehicle detection technology in the application. First, it eliminates the disturbance from unrelated background by mathematical morphology operation between a traffic image and the mask of fixed background area .Then the image sequences are simulated by absolute difference of adaptive threshold for detecting latent target. At last, clusters video frames with similar characteristics which are regarded of the invariant moments vectors by Mean Shift clustering algorithm. Experimental results shown that the improved algorithm has advantages of reducing king region of vehicle matching and vehicle complete occlusion.

Abstract: Aiming at the tracking real-time and accuracy problem of traffic videos, a efficient Multi-target tracking method based on Fusion morphology filter is proposed. The proposed Multi-target tracking method used by Morphologically Fused Tracking approach and combined with pyramid mean shift algorithm, quantizes the deterioration effects encountered on marble surfaces by providing the number, location and shape of deterioration spots. First the detection based on the application of morphological operator sequential filters by reconstruction with structuring elements of growing size. Then adopt a traditional tracking method such as adaptive pyramid mean shift, because it uses the pyramid analysis technique and can determine the pyramid level adaptively to decrease the number of iterations required to achieve region. We validate our approach on tracking examples using real video sequences, it can precisely partition and track the predetermined objects in video frames.

Abstract: It is necessary to study crack opening and sliding discontinuous displacement behavior under mixed-mode conditions because parts or structures of a machine with a crack maybe subject to stress from various directions. In this study ,therefore, using the cracks with different slant angle, which are made in circle stress of modeⅠwith stress ratio of R=0, the opening and sliding discontinuous displacements are measured ,so that modeⅠand mode Ⅱ stress intensity factors (KⅠ)mes and (KⅡ)mes at the crack tip are calculated. As a result, the measured stress intensity factors value of (KⅠ)mes from the fatigue crack with the slant angle β=60 deg. is smaller than the theoretical one (KⅠ). But for mode Ⅱ,(KⅡ)mes is about the same with (KⅡ). On the other hand, for the fatigue cracks with smaller slant angle β=45 deg.,(KⅡ)mes declined because of the crack-surface contact while (KⅠ)mes reduced.

Abstract: Function S-rough sets is defined by employing -function equivalence class. A function is a curve. Function S-rough sets has curve characteristics and dynamic character- istics. By employing function S-rough sets, the concept of image -exterior packet is defined; the theorem of image -exterior packet and the recognization criteria of image -exterior packet are proposed. Function S-rough sets is a new theory and new tools for image processing.