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Nanchang, China

Chen L.,Jiangxi BlueSky University
Applied Mechanics and Materials | Year: 2011

Earing is often undesirable in the production of deep drawn containers because it results in a nonuniform cup height. A finite element model for earring analysis is developed considering only the flange area of the sheet. It was found that the draw-in depth of the flange increases with the increase of the r value, and it remains invariable when r value is larger than 2. With the increase of the r value, the max thickness decreases and the min thickness increases. If △r>0, four earings are formed. If △r =0, the material characteristics in all the planar directions are same. The flange uniformly flows into the die cavity, no earing is formed. If △r<0, four earings are formed. The earing distribution is dominated by r0, r45 and r90. Both r and △r have much effect on the earing distribution. © (2011) Trans Tech Publications.

Jiang D.,Jiangxi BlueSky University
Applied Mechanics and Materials | Year: 2011

Driving System, which is programmed by C#, is a car driving manipulation to simulate the real car driving movement, obtain sense of simulation system. Obviously, Driving System has a lot of advantages as a driving system for fatigue detecting monitor. In driving system, there are three parts, which are the driving Environment, Data acquisition and Data analysis. Driving System can fulfill the interactivity and real time effectively, and has been used successfully in the drowsiness of driving, which can be familiarly analyzed with arithmetic of EEG. © (2011) Trans Tech Publications, Switzerland.

Luo S.,Nanchang University | Jiang D.,Jiangxi BlueSky University
Advances in Information Sciences and Service Sciences | Year: 2011

Currently existing brain computer interfaces (BCIs) extract feature vectors derived from band power, autoregressive (AR) model or common spatial pattern (CSP). However, phase synchronization between electroencephalogram (EEG) signals was considered as mechanism of brain function and regional integration. Phase synchronization was opposed to use for classification of motor imagery. In suitable time window, the electrodes of C3, C4 and central regions to match were selected and then Hilbert transform signal processing method was used for extracting the degree of phase synchronization between two electroencephalogram (EEG) signals by calculating the so-called phase locking value (PLV). The support vector machine (SVM) was used for classification of the motor imagery by a feature selection algorithm. In this paper, we use statistical distribution of instantaneous phase to analyze the EEG signal and these phase relations quantified by the phase locking value (PLV) provide the feature vectors for classification of motor imagery. It shows that the satisfactory results are obtained with single trial accuracies of 95% and that synchronization differences between motor imagery depends upon frequency selection,length of data and electrode selection.

Yan L.,Jiangxi BlueSky University
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2012

With the expansion of business scale, small and medium-sized enterprises began to use information platform to improve their management and competition ability, the server becomes the core factor which restricts the enterprise's infomationization construction. This paper puts forward a suitable design scheme for small and medium-sized enterprise web server soft load balancing, and proved it effective through experiment. © 2012 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Yin L.,Jiangxi BlueSky University
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2012

Hibernate is a object relational mapping framework of open source code, which conducts light-weighted object encapsulation of JDBC to let Java programmers use the concept of object-oriented programming to manipulate database at will. The appearence of the concept of Ajax (asynchronous JavaScript and XML technology) begins the time prelude of page partial refresh so that developers can develop web application programs with stronger interaction. The paper illustrates the concrete application of Ajax and Hibernate to the development of E-shop in details and adopts them to design to divide the entire program code into relatively independent parts which can cooperate with one another as well. In this way, it is easier for the entire program to maintain and expand. © 2012 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

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