Key Engineering Materials Vols. 460-461

Abstract: The key of ontology mapping is to compute concepts similarities. In order to decrease errors, the computation of similarity should consider the influences of relations and attributes. In this paper, a computation method of similarity based on PSO is put forward. At first, the semantic similarity of concepts is computed. Then compute the relation similarity and the attribute similarity. In order to decrease the computation quantity, the attribute priority is specified by PSO algorithm. At last, the attribute with high priority is chosen according to the user need. Take two ontologies as example and specify the attribute priority. Experiments results show that this calculative method can improve the precision of results and reduce the calculated quantities.

Abstract: Combining materials handling and stacking operations, this paper takes the fertilizer bags as the object and studies on the image processing method of the material stacking and segments the stacking image. Using binocular vision technology generates stacking depth image, and the depth data is extracted. It can provide a theoretical basis for the robot to realize the automatic recognition of material stacking.

Abstract: A new moving horizon model inversion method based on numerical optimization is presented to calculate the system input for a given system model and system output. It uses the moving horizon idea from Model Predictive Control (MPC) by using a moving and fixed-size window to inverse the data points in the current window using the initial states information (for the first window) or the last updated control point’s states information in the previous window. The approach can handle both linear and nonlinear systems, and also the sudden changes in system dynamics. Another advantage of this approach is its high computational efficiency when you have a long data record. The model inversion approach can be used in iterative learning control to refine the input to make the response of the system match the reference trajectory as close as possible.

Abstract: The paper can be found under http://www.scientific.net/KEM.460-461.730

Abstract: Land consolidation has played an important role in improving land utilization rate , ecological environment and the sustainable utilization of land resources. It has significant function to evaluate the comprehensive benefit of land consolidation scientifically, reasonably and effectively. This article discusses the definition and function of land consolidation and the significance of comprehensive benefit evaluation. ANP method is introduced in comprehensive benefit evaluation. Combined with the selection principle of evaluation indices, the evaluation index system was obtained, based on which, we established the evaluation model. Using the ANP method, a wealth of uncertain, fuzzy and random factors involved in evaluation process as well as interaction of the factors can be analyzed and treated reasonably. The instance analysis of Gaoyan Mountain land consolidation project proves the correctness of the model and the practicality of the ANP method, which has significant reference value for the comprehensive benefit evaluation of land consolidation project in the arid areas of northwest China.

Abstract: This work aims to make use of information technology to improve present test platform, proposing TPIF(Test Process Integration Framework) as an integrated interaction framework for enginer, quality controller, corporate vendor, and manager to test data and analyze information. Also, it suggests a practicable system framework and implementation case to illustrate the integration and reconciliation degree of TPIF. In TPIF, a component utilizes ATML as the basic format for test information is designed to transform ATML message to Web Services rapidly, upgrading the reliability of test information and be a reference for relevant research. The implication of this proposed framkwork is to mature the integration of test imformation; besides, the engineers could have better understanding of the completed status in production process through combining ATML and information flow , as well as enhancing the yield rate and reduce the possibility of damage.

Abstract: Traditional radar systems are lack of adaptivity to the environment. Modern radar systems should transmit different waveforms according to different environment. In this paper, mutual information model of adaptive waveform design is proposed. With this model, different waveforms can be designed adaptively under different radar working conditions. Simulation results demonstrate the validity of our model. Finally, the whole paper is summarized.

Abstract: . On the basis of a case study of agent-based distributed computation, we develop a more integrative perspective on agent-based system theoretically and experientially.We construct a multi-agent system which exchange KQML message by a mobile agent based on IBM Aglet mobile developing platform and IBM JKQML.Compared with existing distributed computing model, our multi-agent example improves the computational efficiency.

Abstract: Aiming at the camera calibration of binocular stereo vision system, based on Zhang’s calibration method, the specified points in the calibration template obtained by the Harris operator, a set of camera calibration system combined with VC++ and Matlab was developed. The results of the calibration system, comparing with those of four-step calibration method, was analyzed and showed that: the error of calibration data in this system was within 0~5 mm, which had a high precision calibration, providing a new reference measure for the camera calibration.

Abstract: NMR was used to investigate the chemical shift graphs of fresh pork at different time postmortem, and at the same time the ice crystals of meat freezing at different time postmortem were researched with SEM. The results showed there were significant (P＜0.05）correlation between distribution and size of ice crytals freezing at different time postmortem and the chemical shift graphs of fresh pork at different time postmortem different. Using chemical shift graphs of meat could forecast whether the meat was suitable for frozen processing, and also could forecast the water holding capacity of it.