Applied Mechanics and Materials Vols. 20-23

Abstract: Volumes of petroleum resources data are archived in different companies. Complex geospatial heterogeneous data structures complicate the accessibility and presentation of data in petroleum industries. Objectives of the current research are to integrate the data from different sources and connect them intelligently and semantically. Petroleum exploration databases provide a central focus for scientific communities as well as providing useful resources to aide research. However, such resources require constant curation and often become outdated and discontinued. In this research work, we develop an ontology-based system for managing petroleum exploration data that addresses the issues of data integration and information sharing. Ontology approach ensures petroleum data validity that will support petroleum knowledge discovery process.

Abstract: Algorithm of call auction price is designed according to the determining principles popular in international stock markets. Basing on the algorithm, the roots of good characteristics of call auction are oriented in these principles. Theoretical analysis shows that: 1) by implementing principles of maximum volume, minimum residual, market pressures and reference prices, the candidate transaction price set of call auction is gradually narrowing, which indicates that the algorithm has good convergence; 2) principle of reference prices guarantees the uniqueness of final transaction price; 3) principles of minimum residual and market pressures contribute to reducing price volatility; 4) principles of market pressures and reference prices help to enhance the quality of price discovery.

Abstract: This paper proposes a QoS prediction approach used to recommend web service to solve the problem of choosing high quality web service. This approach bases on other users’ experience. According to the different feeling of different user to the same service, and the different similarity among the QoS of different services, the approach first divides the users and services into several modes, and then computes the means of one mode to predict the QoS of a service that the user never used before. Experiment simulation show that the approach is operable to some extent.

Abstract: Service-oriented software systems are inherently complex and have to cope with an increasing number of exceptional conditions in order to meet the system’s dynamic requirements. This work proposes an architecture framework which has exception handling capability. This framework ensures the credibility of service-oriented software, during the architectural stage, by adding exception handling-related architecture elements and modeling exception handling process. It allows a clear separation of concerns between the business function and the exception handling unit, using reflection mechanism. It plays an important guiding role for achieving reliable service-oriented system.

Abstract: Feature extraction is a central processing in the automatic target recognition system, and noise filter is an important step in the feature extraction. A lot of research in noise filter has been proposed and used in image processing. In this paper, a noise filter algorithm based on area feature for vehicle recognition system is presented. Discussing the feature of vehicle for the recognition system, and the problem of the vehicle contour feature obtained from the traffic video. Analyzing the principle of the solve approach of the area-feature-based noise filter for vehicle recognition system. Implementing the program of the algorithm proposed in the following. Experiments have been conducted by many real vehicle images obtained from a real-time video produced by a monitor. The result shows that the new proposed method can remove the noise of the image signal for the vehicle recognition efficiently.

Abstract: A result of global stability for multimedia systems is given by means of the Liapunov functional method.

Abstract: In this paper, a method is presented for designing the distributed vehicle monitoring system based on WebGIS, and also several important problems in system realization are discussed. On the basis of the software of MapXtreme for Java and the J2EE distributed three-layer model, the system is redeveloped with programming language of JSP and JBuilder, Tomcat and Jboss. Experiment and simulation results show that this system has good performance on vehicle monitoring and vehicle dispatch.

Abstract: Quality design means designing quality specifications and processing specifications of products with low cost and high efficiency. This paper presents a hierarchical case-based reasoning approach for quality design. The structure and expression of case-base, the hierarchical case retrieval algorithms and similarity computation formula between cases are all studied. Such a hierarchical case-based reasoning method will greatly improve the retrieval accuracy and efficiency.

Abstract: The artificial neural network, statistical and grey models are established for predicting the filtration properties of melt blown nonwoven fabrics from the processing parameters. The results show that the ANN model yields very accurate predictions and a reasonably good ANN model can be achieved with relatively few data points. The statistical model gives satisfactory prediction results for most cases, and the grey model needs to be improved for precise predictions. The results show great perspective of this research in the field of computer assisted design of melt blowing nonwoven technology.

Abstract: In surface modeling, it is important to reconstruct the smooth connecting surface for the polyhedron vertex and edge rendering. The general method by using the spherical and cylindrical surfaces do not possess the geometric continuity. This paper proposed a geometric modeling method of reconstruction vertices and edges with smooth surface for the polyhedron corner rendering with high order geometric continuity. The proposed method is based on the principle of the theory of geometry continuity through a geometry drawing algorithm. The reconstructed surface can be connected neighboring surfaces with G1 geometry continuity. The results show that the reconstructed surfaces can polish and render the polyhedron corner with good geometry continuity property.