Applied Mechanics and Materials Vols. 220-223

Abstract: This article aims at the difficulties of the undergraduate management. In terms of the comparison of the system of undergraduate management information and the growth records portfolio system, it summarizes the advantages and disadvantages of the two systems and makes best use of the advantages and bypasses the disadvantages. It can be integrated a new growth records portfolio according to information technology. The effects were shown up in undergraduate management according to the practice of this system. This system sets up a platform of personality and brilliance, and the effectiveness of management was improved. This system makes a significant attempt for the management of undergraduate.

Abstract: In augmented reality applications, one of the challenging tasks is to solve environment registering using only partial information of the targeted environments or physical features. We propose an improved method to solve the problem. Our vision based method estimates the relative camera pose between two calibrated views, combining marker points with environmental physical features to increase the effectiveness and the accuracy of the registration process. Experimental results show that our approach can recover the 3D structure information of actual scenes effectively, and the system developed satisfies the requirement of augmented reality (AR) applications successfully.

Abstract: This paper proposed a microwave signal generator which employed a phase lock loop (PLL) chip and several direct digital synthesizer (DDS) chips to make the frequency modulated microwave signal for coherent population trapping (CPT) atomic clock. Based on the communication between a computer and the MCU, it could be completely controlled that frequency, phase, working mode and modulation depth of the output signal by self-developed software. Spectrum and oscilloscope test results showed all the output signals could be suitable for the CPT atomic application.

Abstract: We present a new modified Newton's method with third-order convergence and compare it with the Jarratt method, which is of fourth-order. Based on this new method, we obtain a family of Newton-type methods, which converge cubically. Numerical examples show that the presented method can compete with Newton's method and other known third-order modifications of Newton's method.

Abstract: The large-long highway tunnel provides advantaged condition for highway traffic, at the same time, it also become bottleneck and accident point of the highway. Relative to the highway outside the tunnel, tunnel inside belongs to semi-closed environment and the drive condition is relatively poor, it makes tunnel become velocity bottleneck. Because of uncirculated air in tunnel and all kinds of deleterious gas let by vehicle, it is easy to result into traffic jam and secondary disaster. Large-long tunnel system is a complicated system integrated with many-sided theory and technology, such as traffic, detection and environment, and so on. The traffic flow in tunnel has unrepeatable characteristic. By building traffic flow model, fire disaster and environment model in the paper, the fire-fighting response mechanism, the action process and the realization technology in the condition of fire disaster are researched in emphases. It provided use for reference for the engineering building of Large-Long tunnel, the layout and design of fire-fighting establishment inside tunnel and the running management mechanism of tunnel.

Abstract: The research on statistical analysis of multivariable panel data is a blank in China. The paper tries to do the basal study on cluster analysis of multivariable panel data. This paper firstly analyses the numeric characteristic and constructs anew the distance function of multivariable panel data and the function of sum of squares. On this base, the paper explains the arithmetic and process of cluster analysis. At last, an experimental analysis is done on productive efficiency of the industrial enterprises in China.

Abstract: When creating distributed control systems, we can choose one of two possible approaches based on IEC 61131 and IEC 61499 standards. The first of them has been used for a long time in the PLC sphere, but it does not directly support the creation of extensive distributed systems. The second of the standards, IEC 61499, offers a direct solution for distributed system creation. The truth is that it is a new standard, which is why it is supported by only a few device manufacturers. This raises the question of which approach and which standard is more effective and suitable for individual system designing.

Abstract: The paper dose research about the optimization of container shipping of sea –carriage for meeting the goods transport requirement by use of integer programming. Both laden and empty containers are combined into a system. In particular, the effect of special laden container shipping capacity on the shipping plan is investigated. In the model, the objective function is to maximize the total profit of container shipping. The profit caused by laden container shipping minus the cost caused by both laden and empty container shipping equal to the total profit. The constraints to the model include meeting the need of both laden and empty containers, shipping limit to both common and special laden containers , the number of empty container supported. Lingo9.0 is used to solve the model and shipping methods in varied parameters are shown by simulation. The aim of the paper is to provide a reasonable plan of container shipping of sea-carriage, so the container shipping cost of a shipping company can be reduced and the its profit made by container shipping are maximized.

Abstract: Contourlet-1.3 transform has fewer artifacts than original contourlet transform proposed by Do in 2002; it can extract image texture information more efficiently and has been studied for image de-noising, enhancement, and retrieval situations. Focus on improving the retrieval rate of contourlet-1.3 transform retrieval system, a new contourlet-1.3 texture retrieval algorithm was proposed in this paper. The feature vector of this system was a combination of sub-band energy and consistency and the similarity measure function used here was Canberra distance. Experimental results on 109 texture images coming from Brodatz album show that using the new features can make a higher retrieval rate than the combination of standard deviation and energy which is most commonly used today under the same retrieval time and system structure.

Abstract: Malware (malicious software) is software designed to disrupt computer operation, gather sensitive information, or gain unauthorized access to a computer system. Most malwares propagate themselves throughout the Internet by self-relocation. Self-relocation is a built-in module in most malwares that gets the base address of the code to correctly infect the other programs. Since most legitimate computer programs do not need the self-relocate module, the detection of malware with self-relocation module can be viewed as a promising approach for malware detection. This paper presents a self-relocation based method for both known and previously unknown malwares. The experiments indicate that the proposed approach has better ability to detect known and unknown malwares than other methods.