Advanced Materials Research Vols. 181-182

Abstract: In this paper, we discussed the package structure design of in-door air conditioners aiming the current status and problems. Box types such as 0201, 0203, and improved 0440 are used, and comparison experiments are carried out on compressive strength of empty boxes to optimize the structure design. By improving product package to increase efficiency, can effectively reduce product cost, and assure product quality.

Abstract: Nowadays, a large number of enterprises are implementing ERP system, unfortunately, most of them have failed because of many uncertain factors. This paper introduces the theory of constraints to solve the problems when implementing ERP system. This theory takes the enterprise as a complete system and emphasizes in global optimization to deal with the problems.

Abstract: The next generation Web, Semantic Web, has recently been drawn considerable attention from both academia and industry. The ontology is regarded as the cornerstone of the Semantic Web, is playing an important role with the knowledge expression and knowledge reasoning. Ontology language, Description Logic and the relationships of them were presented. This paper analyzes the principle of semantic reasoning about DL and reasoning machine. Finally, performers testify the practical reasoning task about a concrete Ontology construction.

Abstract: As a sort of formalizing tool of knowledge representation, Description Logics have been successfully applied in Information System, Software Engineering and Natural Language processing and so on. Description Logics also play a key role in text representation, Natural Language semantic interpretation and language ontology description. Description Logics have been logical basis of OWL which is an ontology language that is recommended by W3C. This paper discusses the description logic basic ideas under vocabulary semantic, context meaning, domain knowledge and background knowledge.

Abstract: With the increase of mining depth，most coals in China have been deep mining stage. Compared to the shallow roadway, the characteristics of deformation-failure of surrounding rock show significant differences in the deep roadway, and the deep rock features of the surrounding rock are not considered in the traditional classification of roadway. So it is needed that systematical study on the surrounding rock classification for the stability evaluation of the deep roadway to meet the demand of the support design and the construction of the deep roadway in coal mine of China. The paper puts forward classification system of surrounding rock in deep roadway of coal mine according to on-the-spot geological investigation, rock ultrasonic testing, in-situ ground stress testing and comprehensive analysis on the surrounding rock stability of deep roadway in typical ore area.

Abstract: The design scheme of machine product can be newly explained by applying the black box theory, this design pattern is a combination of functional and structure design method. The method was finally expanded into black box theory and gray box theory. With the help of black box-gray box theory, the design outlines were made, the transform elements of mechanism were programmed, and then the technical process and functional structure of machine were realized. The black box graph, the grayed black box graph, and gray box graph were used to describe the design process in sequence. The scheme design was changed to be a gradually improved process. If the design methods of black box-gray box theory were deepened, the next system design can be called the design of the white box which was the concrete implementation of scheme design. In this work, the black box-gray box theories were successfully applied to investigate the machine design scheme for the projection model of customer’s requirements.

Abstract: According to structure of disk MRF brake computational model of inner flow field for MRF was set up at simplified condition when MRF was regarded as Bingham model. Velocity distribution in inner flow field had been analyzed at different brake velocities and magnetic intensity using finite volume method (FVM), and brake torque and power had also been received at the same condition by integral method. Numerical analysis data were compared with theoretical data. Result showed that velocity distribution of inner flow field was not linear at axial direction, and that brake torque of disk MRF brake was constant approximately, and that numerical data and theoretic data were identical and it can provide reference for design.

Abstract: In order to design a set of geostationary meteorological satellite data processing system，which have common data processing，practical remote sensing products and rich visual stylet，used VC++6.0 MFC and dynamic link library and the mature remote sensing products processing algorithms, to design it. Multi-satellite source geostationary meteorological satellite data are integrated, remote sensing products are generated, for example, cloud detection, cloud classification, cloud top height. The original cloud image, remote sensing and geographic information products are displayed vividly. The three-dimensional cloud image processing retrieval based on cloud detection product takes into account the visual effect, and also has a clear physical meaning, practicality is strong. The system makes geostationary meteorological satellite information play a more important role in the current weather forecast.

Abstract: An algorithm for image edge detection based on nonsubsampled contourlet transform (NSCT) is proposed. NSCT is multiresolutional, localized, multidirectional and anisotropic，so it can more effectively capture high dimensional singularity. Firstly, the coefficients at different scales and in different directions are obtained by image decomposition using the NSCT, then with these coefficients thresholds are adaptively set and the generalized nonlinear gain function is used to enhance the edge features with low contrast while protecting the strong contrast features from over enhancing in the NSCT domain. The experiment results show that the algorithm achieve a good effect than other algorithms.

Abstract: Based on the relation between the elastic disable pressure of the cylinder and the limit of yielding in material according to the elastic disable rule, a laboratorial method of determining elastic disable pressure of thick wall cylinder is designed and a set of experimental data are gained by the method. The elastic disable pressure of the cylinder is gained by analyzing the experimental data. The laboratorial method has a good reliability as the error between the experimental value and the theoretical value is small.