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Assembly variation is one significant factor that affects quality of assembly product. By allocating proper tolerances, the requirement of assembly variation can be satisfied. However, due to the coupling of tolerances, compatibility of model file, it is still difficult to conduct collaborative and trans-platform tolerance design. In this article, tolerance design condition and variation skeleton...
Oil painting's drawing program of Claude.Yvel has been analyzed in this paper. We have studied the drawing program of oil painting which based on computer, and we have realized that the oil painting drawing's teaching can be replaced by computer by a certain program. By comparing with the conventional oil painting's teaching, those studies which we have concluded in this paper are very important for...
In this paper, a Dmeyer wavelet function is utilized to decompose the mixed load current waveforms and extract the parameter values which represent the nonlinear loads. A three layer BP neural network model is established, which is trained using Levenberg-Marquardt (LM) algorithm which shows fast convergence and strong stability. The results indicate that the proposed method of the wavelet BP neural...
As a requisite of the digital image process, fuzzy object extraction is of great importance. In this paper, a novel region growing method based on fuzzy connectedness is proposed. Firstly, fuzzy connectedness is taken as similarity measure between the seed pixel and current pixel and guides the region-growing process. Then, a combined stop criterion integrating adaptive threshold and usan area is...
This thesis focused on the features of the design for the automatic meter-reading and net-distance meter-reading, which applied the wavelet-analysis method for the electronic load in studentspsila apartments to identify the high-power load and computers, in order to prevent college students from violating electro-regulation. It can meet special electro-requirements for studentspsila apartments, such...
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