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High voltage electromagnetic shielding clothes must be worn when working under the high-pressure environment. It uses a conductive principle to shield low-frequency electromagnetic waves of high intensity, reducing the damage to human body. Point to point resistance is an important index for evaluating the performance of electromagnetic shielding clothing. At present, the variational laws of high...
Currently, the three kinds of electromagnetic shielding fabric which include silver plated fiber functional fabric, copper-nickel duplicate coating fabric and stainless steel fiber blended type fabric is not clear in shielding effectiveness's change regulation in the range of wide frequency. The article uses DR-SO4 window method shielding effectiveness tester to test the three electromagnetic shielding...
The shielding effectiveness of electromagnetic shielding fabrics are limited in single layer, shielding effectiveness of multilayer fabrics are not clearly now, this topic in this study. First of all, according to the content of conductive fiber, the organizational structure of the fabrics, woven and knit three parameters, choosing of 50% of silver fiber twill, 50% of silver fiber tabby, 100% of silver...
This paper applies rough set theory to recognition system for image defect, and designs a decision algorithm on rough set suitable for image defect recognition. Firstly, the image is made regionalization and sequential discrete set is proposed, the continuous attributes of image is discretized. Then the decision table model on discrete condition attributes and decision attributes is constructed. Further...
This paper proposes a new computer recognition algorithm which can analyze density uniformity of clothing fabric easily and correctly based on Difference Value Matrix Model (DVMM). Firstly, the clothing fabric image must be pretreated to make it more distinct. Secondly, the clothing fabric image is divided into some segments according to precision demand and a matrix of point??s position is built...
Aiming at the problem that manual grading for garment fabric??s quality has not good precision, this paper presents a new method based on fuzzy set which can evaluate the quality grade of the garment fabric. According to fuzzy theory, we firstly construct a fuzzy matrix from existed fuzzy sets which can evaluate the garment fabric??s quality. According to this matrix, we put forth improved closeness...
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