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The parallel grooved multi-layer drum is regarded as the research object in this paper. The parametric design system is developed for the parallel grooved multi-layer drum to realize the parametric design of 3D model. Based on the research of the load characteristics of parallel grooved multi-layer drum, the model designed by the parametric generation system is imported into ANSYS Workbench to simulate...
In DaaS, users lose physical control over their data, and the DSP which is not fully trusted own all the operating rights over the data, on this service model the data owners are seriously worried about their privacy data. Based on the related research work, a data partition method based on attribute similarity for privacy protection was proposed in this paper. This method partition attribute into...
Software project development still faces high failure rate. Nowadays, researches on software project risk majorly remain in risk theoretical model, risk identification and risk analysis, lacking empirical models which unify risk analysis and risk planning procedures. This research firstly collected real data from mainland China, and used Classification Association Rules (CARs) to provide a highly...
In the field of unsupervised texture classification, a combination of various families of methods was usually used for better classification results. However, the existing methods are usually used for specific application and evaluated with fixed window size. In this literature, we propose an effort to combine multi-scale features for unsupervised texture classification. The local binary pattern (LBP)...
The topic correlation judgment algorithm based on weight and threshold is proposed as for the problem that Web pages which are closely related to the given topic may be neglected due to not all keywords given by the users in the pages when users retrieve the topic they desire on the Internet. The algorithm retrieves the topic on the Web sites in depth by the hierarchical key structure on the basis...
Direction parameter thetas is one of the important parameters of GLCM (gray level co-occurrence matrix). A fixed angle (such as thetas=45deg) or the average of the measurements in four direction (thetas=0deg,45deg,90deg,135deg) were usually used in calculating GLCM. However, these methods are just empiristic idea, lacking of theoretical support. In fact, the above-mentioned idea are usually failed...
Optimistic concurrency control (OCC) protocols have been shown to be better suited than locking protocols for real-time database systems, but they have the problems of late conflict detection and transaction restarts. Although time interval based OCC protocols reduce the number of transaction restarts by dynamic adjustment of serialization order, there are still some problems with them which result...
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