International Journal of Engineering and Manufacturing (IJEM)

IJEM Vol. 2, No. 5, Oct. 2012

Cover page and Table of Contents: PDF (size: 456KB)

Table Of Contents

REGULAR PAPERS

Research of Product Classifying and Coding Based on the Things Characteristics and Realization of the Relevant Management System

By Chen Xi Hao Lijian Yang Guichun Zhang Jialia Xia Guijiana Ma Yanlia

DOI: https://doi.org/10.5815/ijem.2012.05.01, Pub. Date: 5 Oct. 2012

In this paper, the advantages and disadvantages of three kinds of information code (subjection code, composite code and parallel code) were analyzed and compared. It was put forward that adopt parallel code method based on things characteristics realizing the information classifying and coding management of the whole life cycle of the products. And the structure model of product classifying code based on parallel code method was established. At the same time, the implementation method of product classifying code was presented for application requirements of the enterprise. Finally, the classifying and coding management system of product was introduced that supported by ORACLE and used JSP to development.

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DbDMAD: a Database of DNA Methylation in Human Age-related Disease

By Wei Zhang Chang Linghu Juhua Zhang

DOI: https://doi.org/10.5815/ijem.2012.05.02, Pub. Date: 5 Oct. 2012

DNA methylation plays a variety of crucial roles in cell division, proliferation, development of aging life, development of genetic diseases related to uniparental disomy, and carcinogenesis. DNA methylation can be probed by HPLC and gene chip which is very helpful to the high-through methylation test. In recent years many published articles reported that DNA methylation may be linked with human aged disease. Mining and integration of DNA methylation in human aged disease can be beneficial to novel biological discoveries. There has not been DNA methylation database repository which is exclusive for human aged disease. Therefore, we developed dbDMAD: a database of DNA methylation in human aged diseases, there are two purposes of it, one is to store DNA methylation in human aged disease datasets which were obtained from laboratory experiments, another is to find the relationship of different aged diseases. This is the first release of dbDMAD in which users can find 12 kinds of human aged diseases and relevant DNA methylation information. It can be searched by disease name and gene ID. This database also includes a visualization tool named ChainMap, by which the map of methylation pathway can be shown.

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A Novel Hand Prosthesis Control Scheme Implementing a Tongue Control System

By Daniel Johansen Dejan B. Popovic Lotte N.S.A. Struijk Fredrik Sebelius Stig Jensen

DOI: https://doi.org/10.5815/ijem.2012.05.03, Pub. Date: 5 Oct. 2012

This paper presents a novel control scheme for new advanced hand prostheses implementing multiple pinches and grasps. The control signals for the hand are determined by myoelectric signals from the arm and volitionally generated signals by tongue through an inductive interface with a mouth piece. The feasibility tests have been performed on an able-bodied subject who controller a virtual reality hand. Results suggest that this hybrid control scheme works well, it is intuitive and the subject learned fast to use it, and what is most important provides many more control channel to advanced hand prostheses. This research is being continued in healthy subjects with the intention to translate the results to patients.

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Transfer Characteristics of Three Kinds of Micro-groove Heat Pipes

By Liu Yi-Bing Huang Zhi-Gang

DOI: https://doi.org/10.5815/ijem.2012.05.04, Pub. Date: 5 Oct. 2012

In this paper, a simulation of three kinds of micro-groove plate heat pipes- rectangular; trapezoidal and triangular, is conducted by thermal analysis software ANSYS. Through comparing with the focal point temperature value of the surfaces of micro-groove plate heat pipes, respectively being 30W; 40W; 50W, the result is obtained that trapezoidal plate heat piper has more excellent performance.

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Performance Study on the System of Real-Time VBR Service with Shared Cache

By Hong-fei Zhang Sheng-ye Huang

DOI: https://doi.org/10.5815/ijem.2012.05.05, Pub. Date: 5 Oct. 2012

In this paper, we study a system that adopts complete sharing admission policy to multiple broadband real-time variable bit rate (VBR) service sharing a common buffer or cache. Under joint connection-level and packet-level analysis, we utilize shared cache queue model with multiple ON-OFF sources to analyze the probability distribution of the number of packets and then obtain the formulas of calculating packet loss rate and average delay. Through numerical calculation, the results compared with the non-caching system indicate that the packet loss rate has decreased, but the average delay has increased. Taking into account the delay sensitive nature of real-time VBR service, this paper puts forward a call admission control (CAC) algorithm that gives consideration to both packet-level performance parameters and connection-level performance parameters. The algorithm optimizes the average delay of the system with constraints on call blocking probabilities for each kind of VBR service and a common packet loss rate for all services. Numerical examples exhibit the nature of such systems.

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Optimal Measurement Model for the Assessment of Cell Adhesive Force by Using the Dielectrophoresis Force

By Jeng-Liang Lin Chyung Ay Jie-Yu Cheng Chao-Wang Young

DOI: https://doi.org/10.5815/ijem.2012.05.06, Pub. Date: 5 Oct. 2012

The objective for this research is to assess the optimal measurement model for cell adhesion force. The Human Umbilical Vein Endothelial Cell Line (ECV304) was cultured on a type of biomedical material, polydimethylsiloxane (PDMS). The research also studied the parameters such as alternatives of working solution, styles of PDMS substrate, driving frequency and collagen smearing etc. The result showed the cells cultured on the large area substrate with 2 mm structural spacing and the small area substrate with 100μm structural spacing have better adhesive force. It was also clear to find that large area substrates also showed faster cell growth and expansion. They are more suitable as culture substrates for the measurement of cell adhesion force. As for work solution, 2% glucose solution that has relative low conductivity and concentration has the best measurement that effectively obtained cell adhesion force.

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Image Denoising by Nonlinear Diffusing on Mixed Curvature

By Gao Jian Zhang Feiyan Qin Qianqing

DOI: https://doi.org/10.5815/ijem.2012.05.07, Pub. Date: 5 Oct. 2012

A basic problem in the image denoising is noise pressing and edge preserving, while it is difficult to do well in the two aspects at the same time. The Partial Differential Equation (PDE) based methods, such as nonlinear diffusing method, energy minimal method and active contour method, provide a new choice. Here, focus is put on the classic Total Variation and hypersurface minimal problems, which consider regularizing term of isolevel smoothing and mean curvature. In fact, Total Variation smoothing term works well for preserving clear edges and inefficiently in plain areas, while hypersurface minimal smoothing term does well on denoising in plain areas and excessively on edges causing blurring. A projected isolevel curvature is proposed here just as the Beltrami-Laplace operator to mean curvature, considering the gradient while smoothing and keeping edge sharp effectively. And a mixed curvature of mean curvature and projected isolevel curvature forms by a weighting variable. The new denoising method based on the mixed curvature, smoothing in plain areas of image like hypersurface minimal and on edges like a projected isolevel curvature diffusing. Results of relative experiments indicate the proposed mixed curvature denoising method possesses the merits of the two original.

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Identifying Cross-Site Scripting Attacks Based on URL Analysis

By Zhihua Tang Ning Zheng Ming Xu

DOI: https://doi.org/10.5815/ijem.2012.05.08, Pub. Date: 5 Oct. 2012

Cross-site scripting (XSS) is one of the major threats to the security of web applications. Many techniques have been taken to prevent XSS. This paper presents an approach to identify Cross-Site Scripting attacks based on URL analysis. The fundamental assumption of our method is that the URL contains a part that can produce a valid JavaScript syntax tree. First, we extract the parameters of the URL to produce a valid JavaScript syntax tree and weight its parsing depth. If its depth exceeds a user-defined threshold, the URL is considered suspicious. Second, to the exception URLs, a second level of defense is formed by analyzing its structure. The experimental results demonstrate that our approach can effectively distinguish most of the malicious URLs from the benign ones.

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Research on Application of OGSA-based Digital Campus

By Zhang Shunli Yin Qingshuang

DOI: https://doi.org/10.5815/ijem.2012.05.09, Pub. Date: 5 Oct. 2012

This paper briefly introduces the concept and characteristics of Grid technology and Open Grid System Archi-tecture (OGSA). By analyzing the deficiencies existing in the present campus network and the comparative advantages of campus Grid, it presents and discusses the model and design of OGSA-based campus Grid. Building campus Grid is an important work in Grid gaining ground; therefore, the study on OGSA-based Cam-pus Grid is of great significance in applying Grid computing to educational field.

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Research of Association Rule Mining Algorithm Based on Improved FP-Tree

By Chen zhuo Lu nannan Li shiqi Han tao

DOI: https://doi.org/10.5815/ijem.2012.05.10, Pub. Date: 5 Oct. 2012

Mining algorithm of FP-Tree is one of the most effective mining algorithms in association rule mining. It must produce large amounts of the candidate set and scan database repeatedly, but it generates conditional FPTree recursively in the process of mining frequent pattern and wastes the storage space greatly using the common tree's memory structure. It proposed an algorithm for mining frequent patterns by constructing reverse FP-tree with a binary tree storage structure. In mining process, it mines left son tree recursively, but gets frequent pattern not by generating conditional FP-Tree, so it greatly reduces the storage space and running time. The experiments show that the improved algorithm can realize effective mining on the time and space.

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Analysis on Financial Policy of Enterprise and Sustainable Growth

By Tao Wu Jinhua Guan

DOI: https://doi.org/10.5815/ijem.2012.05.11, Pub. Date: 5 Oct. 2012

Excessive growth will constrain enterprise resources, including intelligence, material, and money and so on. The slow growth rate will waste the precious financial resources of enterprise. The average rate of profit will be lower than that of social resources. When the actual sales growth rate is inconsistent with the sustainable growth rate, enterprise should lay emphasis on growth management and adopt appropriate financial policies to keep them consistent. This article analyzes the sales growth from financial perspective and uses financial index to estimate so as to avoid the problems caused by unfavorable growth and eventually to achieve the goal of sustainable growth.

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An Empirical Study on Consumers’ Continuance Intention Model of Online Group-buying

By Gang Li Xin Shi

DOI: https://doi.org/10.5815/ijem.2012.05.12, Pub. Date: 5 Oct. 2012

This paper examines the factors influencing consumers’ intention to continue using a new pattern of online group-buying, which benefits consumers from high discounts and is prevalent in many countries of the world since 2009. A theoretical model is proposed based on Expectation-Confirmation Model of IS Continuance (ECM-ISC) from the previous IS continuance literature, integrating with e-recovery service quality, perceived risk and two external variables. Data collected from a questionnaire survey of OGB consumers provides empirical support for the proposed model. The results indicate that consumers’ satisfaction with prior use and perceived usefulness significantly influence consumers’ continuance intention. Consumers’ satisfaction is determined primarily by consumers' confirmation of expectation from prior use and secondarily by perceived e-recovery service quality. Further, confirmation also has a significant influence on post-acceptance perceived usefulness. Confirmation, in turn, is significant influenced by both product quality and information quality. Some suggestions for practitioners are also offered.

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