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For the purpose of achieving high-performance information sharing in the simulation grid,an information capability-based three phase high-performance information sharing approach (TPHPISA for short) is advanced. The main idea of TPHPISA is selecting those information sources with highest information capability and executing the best query plan. To illustrate how TPHPISA works, an application example...
Aiming at using different types of heterogeneous database system for enterprises and institutions, we design and implement a global data management and query processing in heterogeneous database information processing system in Intranet, The system adopts structs techniques of MVC pattern, and use Java component technology in enterprise Java Bean component technology to implement the MVC pattern in...
Natural language processing is one of the most important applications in artificial intelligence (AI), while semantic disambiguation is one of branches and difficulties in natural language processing. This paper introduces three semantic disambiguation models, Bayesian model, hidden Markov model, and maximum entropy model. These three models are used to test and compare with. The results show that...
Along with the national promotion of energy-saving and pollution-reducing, energy information management level of power plant needs to be improved, and a kind of solution scheme based on the integration of management and control including automation technology, computer technology and network technology is urgently needed by power plant. In order to avoid the complexity of wiring in traditional wired...
Fieldbus has become one of the most active fields in industrial data bus area. However, fieldbus standards are not uniform at present, which brings many difficulties to different industrial control equipments from different manufacturers to connect their devices to others. CAN bus and Modbus bus are two kinds of more popular buses in industrial control systems. This paper analyses these two bus protocol,...
In order to enhance the accuracy rate of the fault diagnosis of condenser, a fault diagnosis method based on consensus information fusion is presented. The decision-making distance is calculated and the closest supporting group is found. By integrating the results of the closest supporting group, the best decision-making value of fault diagnosis is obtained. This method is applied in the simulation...
Focusing on the copyright protection of digital museum image, one new method of digital watermarking combined the technology of discrete wavelet transform and digital holography is proposed. The digital watermark image is firstly changed into the digital holography image, which is the watermarking. Then the watermarking is embedded into the host image through the algorithm of DWT. The key is the wavelength...
Research on psychological contract theory has developed originally from organizational behavior, human resources management to the new research area of marketing and other related field. Based on the relative maturity of the two former areas, applied research of psychological contract in marketing especially in the brand relations has become a new direction for psychological contract study and at...
At the era of knowledge economy, knowledge management is attached more and more importance to our country in all circles. Only after fully understanding the importance of knowledge management and successfully implementing knowledge management can organizations maintain the continuous developmental vitality in the fierce competitive environment. Successful implementing of knowledge management is based...
This paper introduces the definition of knowledge and knowledge-sharing, analyzes the model of knowledge-sharing, points that the process of knowledge-sharing between employees is the dynamic-repeated games, through using KMRW theory, analyzes the possibilities of knowledge-sharing and the problems should be paid attention to in the process of implementing knowledge sharing, and presents interrelated...
In this paper, based on field observations and theoretical analysis, we discussed the ground pressure behavior law and its characteristic at fully-mechanized face and the material roadway of 10# seam in Fenxi-Shuguang coal mine. The analysis results indicates that ground pressure at material roadway increased sharply when the working face advanced to place 40∼50m away from it, and as the advance of...
As a fully developed fieldbus technology, INTERBUS is widely used in the world. This paper mainly focuses on the research and development process of INTERBUS operator terminal. It consists of three traditional main steps: system design, hardware design and software design. Meanwhile, this paper also aims at INTERBUS network structure, hardware selection and protocol realization, especially discusses...
In the application of particle holography analysis, the diameter measurement is basic and important. A novel approach of segmentation is proposed. For improving the accuracy of measurement, the method of bi-threshold is used firstly and then the edge linking method is adopted to get the more accuracy segmented particle image. The experiment tests showed the less relative error is in the diameter measurement...
An approach of image segmentation was used in the application of particle holography analysis for the diameter measurement. The whole process of image segmentation based on boundary detection was delivered. For improving the accuracy, the segmented particle image has been obtained by the bi-threshold method which decreases influence of background noise and inhomogeneous gray distribution of holography...
To segment foreground objects and moving shadows in visual surveillance environment, this paper proposes an algorithm by exploiting color information, illumination invariants and spatial information. The presence of a shadow is first hypothesized with simple evidence that shadows darken the surface which they are cast upon. Derivatives of illumination invariants are then used to classify the potential...
A method automatically extracting buildings from LIDAR data is presented. LIDAR point clouds are re-sampled into regular grid DSM, and a filtering processing which filters out non-ground points on the DSM surface is carried out simultaneously, acquiring a DEM with only ground points. An nDSM is obtained by subtracting DEM from DSM, and the building candidate regions are identified by using some thresholds...
Gaussian filter is a standard filter in surface metrology recommended by ISO11562. Its recognized problem is called "end effect". In order to overcome this disadvantage, a new approach based on approximating spline is developed to realize Gaussian profile filter. First, the configuration of approximating spline filter is investigated, and it describes that this filter inherits all the characteristics...
This paper presents a communication controller between the FlexRay and Modbus protocols for embedded systems. FlexRay is a kind of high speed bus technology, which has high performance and high reliability. Modus is a mature fieldbus technology, which is widely used on industrial field. The communication controller is based on a 16 bit MCU platform, with XGATE as its coprocessor, which provides FlexRay...
The high quality of the information source can improve the accuracy of target recognition when data is fused via multi-information sources. In this paper, it proposes a new method to determine the reliability coefficient of the information source by information criterion. With calculating the reliabilities of information sources, the more reliable source would be used in the combination process to...
A time-interleaved ADC system is an alternative choice to implement a high speed rate ADC with relatively low speed ADCs operating at interleaved sampling times. However, the system resolution always degrades due to mismatches such as offset, gain, bandwidth and timing mismatches between different ADC channels. Previous analyses showed these mismatch effects individually. This paper derives explicit...
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