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Jiujiang, China

Cheng Z.-Y.,Wuhan University of Science and Technology | Liu J.,Wuhan University of Science and Technology | Chen W.-S.,Wuhan University of Science and Technology | Lin X.-F.,Wuhan University of Science and Technology | And 3 more authors.
Gongneng Cailiao/Journal of Functional Materials | Year: 2014

The 0.35 mm thickness Fe-6.5%Si-0.5%Cu alloy sheet prepared by hot-warm rolling has good surface quality. The microstructure of the hot-rolled sample and warm-rolled sample was observed. The vickers hardness of the hot-rolled sample and warm-rolled sample was tested. The structure and property of the Fe-6.5%Si-0.5%Cu alloy after the rolling process was investigated. Simultaneously, the magnetic properties of the warm-rolled alloy sheet was tested. The results show that, there was some slip band and only a little B2 ordered phase in the warm-rolled sample. The alloy sheet prepared by this experiment has good shape, high saturation magnetic induction and low iron loss.

Chen M.C.,Chaohu University | Wang F.,Jiujiang College
Advanced Materials Research | Year: 2014

Handwritten numeral recognition is an important branch in the field of pattern recognition, has broad application prospects. This article presents a method of using BP Neural Network to implement programme for recognition of free handwritten numerals. Scanned handwritten numeral image after preprocessing and feature extraction, classificated and recognized by the BP Neural Network. Through Matlab simulation experiments it shows that the recognition method is effective and has high recognition rate. © (2014) Trans Tech Publications, Switzerland.

Cheng Z.Y.,Wuhan University of Science and Technology | Liu J.,Wuhan University of Science and Technology | Chen W.S.,Wuhan University of Science and Technology | Sun G.D.,Jiujiang College | And 5 more authors.
Advanced Materials Research | Year: 2013

Fe-6.5wt%Si silicon steel has excellent soft magnetic properties, but its ductility in room temperature is near zero. A lot of researchers tried to improve the ductility by adding alloy elements. In this paper, we summarized the action mechanism and the content of these alloy elements according to the overseas and domestic research status. Al, B, Cr, RE, et al. improved the ductility of Fe-6.5wt%Si silicon steel in low temperature, but reduced its magnetic properties simultaneously. Ni, Ti, Mn, et al. improved the ductility of Fe-6.5wt%Si silicon steel inconspicuously. © (2013) Trans Tech Publications, Switzerland.

Li C.-J.,Xian Jiaotong University | Wang H.-T.,Jiujiang College | Yang G.-J.,Xian Jiaotong University | Bao C.-G.,Xian Jiaotong University
Journal of Thermal Spray Technology | Year: 2011

FeAl intermetallic compound coating was prepared by cold spraying using a mechanically alloyed Fe(Al) alloy powder followed by post-spray annealing at 950 °C. The high-temperature abrasive wear test was carried out for the FeAl coating at a temperature range from room temperature to 800 °C. The high-temperature abrasive wear of a heat-resistant stainless steel 2520 was performed for comparison. It was observed that the abrasive wear weight loss of FeAl coating was proportional to wear cycles in terms of sample revolutions at the tested temperatures. It was found that with the increase of the test temperature higher than 400 °C, the wear rate of cold-sprayed FeAl coating decreased with the increase of test temperature, while the wear rate of the heat-resistant steel increased significantly. The results indicate that the high-temperature abrasive wear resistance of the cold-sprayed FeAl intermetallic coating increased with the increase of the wear temperature in a temperature range from 400 to 800 °C. The wear resistance of cold-sprayed FeAl coating was higher than that of heat-resistant 2520 stainless steel under 800 °C by a factor of 3. © 2010 ASM International.

Lin L.,Guizhou University | Lin L.,Nanjing Southeast University | Yang M.-Q.,Guizhou University | Li J.,Nanjing Southeast University | Wang Y.,Jiujiang College
International Journal of Industrial Ergonomics | Year: 2012

Since the combined effects of the product's various modeling features contribute to a large extend to consumers' perceptual evaluation of the product, it is of high necessity for designers to make exhaustive research on the mental feeling aroused by the product's multi-dimensional modeling features (MMFs) if they intend to design a product that echoes users' affective needs. By deconstructing the product components into human interface elements (HIEs) from the perspective of multi-sense channel, this thesis advances a layered general deconstruction method, and deconstructs, with cell phones as samples, 90-multiple MMFs. Then on the basis of the testers' image evaluation of 20 cell phone samples in connection with the given affection, multiple linear regression technique is employed to establish the Kansei Engineering (KE) model of product MMFs and affection. Lastly, the partial regression coefficient values derived from regression calculation are used to determine the key design features, and the negative and positive natures of the values are employed to deduce the effect of modeling features' variation trend on the expression of affection. In this process, design rules for key MMFs are formulated to guide the cell phone's affection design. Relevance to industry: A product's possession of the user-needed affection has become a key factor to increase the product's market competitiveness. Knowledge of the product image brought about by the interplay of multi-dimensional modeling features (MMFs) like a product's shape, color, and materials will help reduce the deviation of product image from the user's real feelings. The formulation of MMFs design rules will help product designers to flexibly coordinate the features that play key roles in the expression of affection. Although the design rules are deduced from the case of cell phones, the deduction method of products and the deduce method of MMFs' design rules, however, are also applicable to other products. The method of deductive system for MMFs design rules will provide an effective mechanism in promoting the Kansei design of consumer-oriented products. © 2012 Elsevier B.V.

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