Applied Mechanics and Materials Vols. 121-126

Abstract: To improve efficiency and accuracy of semantic web service composition, a topic maps oriented semantic web service composition policy is proposed. Firstly describes topic maps and web service with ontology, then defines a service composition view to implement service composition mapping. Secondly, a matching dependency for semantic web service is defined, and employ greedy genetic algorithm to optimize the results. Finally, this paper implements the method based Amazon services set and the results show that it is better efficiency than old method.

Abstract: To recover strip coal pillar and reduce cost after strip mining, the short wall box style mining method was presented. Strata stability was analyzed based on support plate theory, mechanical model of the second strata movement was created, and safety factor was deduced .The ground movement and deformation were predicted, with probability integration method. The application demonstrates that this mining method can protect buildings on earth’s surface, improve the recovery ratio of coal and reduce cost. This mining method has a good economic advantage and environmental benefit.

Abstract: Cloud computing is a novel parallel platform, this paper proposed a kind of simple parallel genetic algorithm (PGA) using Cloud computing called SMRPGA. Comparing with the traditional PGAs using high performance computers (HPC), cluster or Grid, SMRPGA is simple and easy to be implemented. Another advantage is that PGA using Cloud computing is easy to be extend to larger-scale, which is very useful for solving the time-consuming problems. A prototype is implemented based on Hadoop, which is an open source Cloud computing. The result of running two benchmark functions showed that the speed-up of PGA using Cloud Computing is not obvious considering the long communication time and it is suitable to solve the time-consuming problems.

Abstract: The Human Machine Interface (HMI) of Monitor& Control System (MCS) is an important part of main control room in Nuclear Power Plants (NPP). The MCS is integrated by networks, digital computers and computer software. The paper discusses a new design mode for the HMI of MCS in Nuclear Power Plants. How to make the MCS information available is the focus of the HMI research. The paper discusses the design and research about the main layout and functions of the HMI. In order to verify and validate the design of HMI, the HMI of MCS is developed by a configuration software of JADE. HMI debugged with the NPP simulator. The Test illustrates that the HMI can help the operators to get very important information from MCS, which help the operators to operate the nuclear plant safely and reduces the human error.

Abstract: This paper presents a spectral method to matching a pair of feature sets based on isometric projection of matrix. In the proposed method, a graph is constructed to model the structure relationships between features. Then the correspondence is found by minimizing the inner product between two isometric projections of the weighted adjacency matrix of graph. Finally, transformation between the two feature sets is estimated according to correct correspondences. The performance of the proposed approach is better than the state-of-the-art method in terms of correct ratio under position perturbation and computation time. Experiments on a number of simulated data, synthetic and real-world images show the validity of the proposed algorithm.

Abstract: Optical fiber sensors with light weight, small size and immunity to electromagnetic interference have been found to be a promising device for use in the development of smart structures. It is well known that the strain transfer from the host structure to the optical fiber sensor is dependent on the bonding characteristics such as adhesive layer and bonded length. In this investigation, the optical fiber sensor is surface bonded on the host structure. A theoretical model consisting of the optical fiber, adhesive layer and host material, is proposed to determine the strain in the optical fiber sensor induced by the host structure. The theoretical predictions were validated with the numerical analysis using the finite element method.

Abstract: It is depended on the experience to identify the screen line and angle for the print products. In this paper, We designed the screen directions determiner according to the principle how the Moire Fringe produced. An example of serial screen line 85,100,120,133,150,175,200Lpi is given, and a method of design is proposed for Suitable screen angle and output points of laser phototypesetter. Analysis of quantization about screen line and angle for the print products are discussed. At the same time, It is derived from Moire formula and the dot transmittance Equation. The result has an important guiding significance for printing practice.

Abstract: According to the path point calculation, display and motion simulaiton problem for wheeled mobile robot(WMR), two kinds of path point calcualtion method are discussed from 2D and 3D space in this paper. The simulation results based on the motion simulation platform prove the validity and practicability of the proposed method.

Abstract: An extensive work has been done, across a number of fields, in modeling organizational processes. A tension has existed between the attempts to provide a rich expression of organizational activities and the desire to support the work as it actually takes places. A static business process is characterized by stable network connections, use of powerful computing devices, and an easy access to various knowledge sources within the corporate Intranet. In modeling a business process into a component, a major challenge is whether the mechanism of component combination at the code-level is readily available. Currently there is little experience concerning the modeling of relationships between components and their communication for business processes. It is considered that the connector should take charge of interactions between the software components and the associated information about the component composition, role and specification. This paper proposes business process composition method for development of web applications. Specifically we focus on the interactions of the connectors that are the interfaces between the business processes in web component. We describe the method and demonstrate that this algorithm is able to process components and interfaces. We then show the viability of this method by implementing a simple stock trading system.

Abstract: In this paper, two kinds of photovoltaic cell’s mathematical model are presented, and their curves of output characteristic are drawn. The MATLAB/SIMULINK model of PV power generation system is based on PV cell's physical equivalent circuit, its mathematical model 2 and PV module YL 120 P-17b/1470×680. Due to the single peak of the output U-P characteristic, PV module has a Maximum Power Point (MPP). The fixed-step and variable-step duty ratio perturbation methods are applied to the model of PV power generation system that has been established for MPPT simulation research in this paper. In addition, the advantage of variable-step duty ratio perturbation method and the important role of the storage battery have been proved by the simulation results.