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Copyright of Basic Sciences Journal of Textile Universities / Fangzhi Gaoxiao Jichu Kexue Xuebao is the property of Basic Sciences Journal of Textile Universities and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to explore the mapping relation between breast size and bra structure size, 55 female college students' chest circumference, lower chest circumference and other human body size data were collected by 3D body scanner, and the breast root circumference, breast height, proximal and distal distance were calculated. Linear regression model and BP neural network model were constructed respectively by data processing and analysis. The results show that the prediction accuracy of BP neural network model and linear regression model are 95.9% and 92.2% respectively. BP neural network model is simple, and superior to the linear regression model, which can be used to provide the fitness reference size for bra light customization. [ABSTRACT FROM AUTHOR]

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Low temperature and sparse light conditions in early spring is one of the factor caused lost for rice production. So it is important to develop cold tolerance cultivars. In the present study, cold tolerance characters of 36 parents and 423 rice lines from 68 hybrid groups their filial were investigated at seedling stage under low temperature and sparse light conditions in field. There were 10 parent accessions with strong cold tolerance of scale 1. Among thеm, 3 were common wild rice accessions; 4 were japonica rice cultivars; 2 were indica rice; 1 was offspring from hybrid between indica and japonica. There were 33 lines of strong cold tolerance with index of 1 from the hybrid group of com mon wild rice, and 15 from the hybrid groups of IRBB5, and only 3 from the groups of BPHR96. There were abundant cold tolerance re sources in rice germplasm. It was feasible to develop cold tolerance cultivars from the hybrids among common wild rice, Japonica cultivars аnd indicа cultivаrs. [ABSTRACT FROM AUTHOR]