Ni H.,Jiangyin Polytechnic College
Journal of Soochow University Engineering Science Edition | Year: 2012
It is urgent to calculate quickly and accurately the consumption quantity of sewing thread as it is an important part of counting up production cost and reducing inventory pressure. The study is made with uniform design test. The regression analysis of the test result of sewing thread quantity of plain seam results in the relational expression of sewing thread consumption quantity and sewing fabric thickness and stitch density. Compared with other relational expressions, the relation in this study is much simpler and more accurate.
Ni H.,Jiangyin Polytechnic College
Advanced Materials Research | Year: 2011
Select 45 pieces of silk, cotton and wool fabrics in total, with semi-circular skirt modeling as object of study, investigate the relationship between flare sagging in straight & inclined grains of skirt pieces and fabric types, analyze the influence of hem parameters on flare sagging of semi-circular skirt and obtain multiple linear regression equation by disposing the measured data with SPSS statistical analysis software. The study result shows that the skirt hem of silk fabric is sagging more significantly than that of cotton and wool fabrics and there is a multi-linear relationship between semi-circular flare sagging and parameters. The research of this subject has both theoretical value and practical value. © (2011) Trans Tech Publications, Switzerland.
Yu Y.-E.,Jiangyin Polytechnic College
Wool Textile Journal | Year: 2014
Dyeing build-up of Lanasol LE of new proces on wool is studied, which is performanced by single-factor experiments such as the amount of auxiliary BU and acid,the time of thermal insulation. The experiment results show that dyeing color denth of the new dyeing process is improved much on the condition of the amount of auxiliary BU 3% (owf), dyeing temperature 98 °C, the time of thermal insulation 90 min. And also, dyeing rate and dyeing build-up are compared between new and traditional process of dyeing. The experiment results show that dyeing color denth of the new dyeing process is higher than dyeing color denth of the traditional process; the dyeing rate of the new dyeing process and the traditional process are related with the amount of dye.
Cui L.,Jiangyin Polytechnic College
Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys | Year: 2012
Macroscopic formability, microstructure and mechanical properties of the ZA27 alloy worm gear blanks in permanent mold casting, in liquid forging and in semisolid die forging were investigated under various process conditions. The results show that the microstructure of the worm gear in permanent mold casting is fine-developed dendrite from the addendum to the graduated circle. Absence of dendritie in the addendum and broken phenomenon of the dendrite arm in the dedendum of the worm gear in liquid die forging can be observed, and it is obvious that the dendritic structure in the graduated circle is broken and spheroidized. The refined microstructure in the addendum with uniform distribution and rosette structure in the dedendum are presented in semisolid die forging, and the microstructure in the graduated circle exhibits fine equiaxed grain. It is difficult for the tooth profile of worm gear to form by permanent mold casting, and the worm gear has clear outline with plumptooth profile by liquid forging and the formability is more desirable by semisolid die forging. The mechanical properties of the parts by semisolid die forging are superior to those prepared by permanent mold casting and by liquid forging.
Tu L.,Jiangyin Polytechnic College
Proceedings - 2015 3rd International Conference on Advanced Cloud and Big Data, CBD 2015 | Year: 2015
This paper proposes a density grid-based algorithm (C-UStream) for clustering on uncertain data stream in sliding window which can find clusters of arbitrary shapes. The statistical summary information of each grid is stored in linked queue structure by using sampling window mechanism. In order to guarantee the validity of clustering, the expired grids in the current window are removed regularly. Furthermore, a dynamic sporadic grids deletion mechanism is developed to delete most of outliers periodically which greatly improve the space and time efficiency. The experimental results on the synthetic and real data sets show that C-UStream has superior clustering quality and efficiency than other similar algorithms. © 2015 IEEE.