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Shanghai, China

Zhou X.,Shanghai Tobacco Group Co.
Tobacco Science and Technology | Year: 2015

The film tends to be out of alignment and its length varies in the process of unwinding, cutting and transferring in carton overwrapper YB95A. The film transferring was driven independently by a servo motor instead of by main drive via referring to the design of carton overwrapper YB917. To achieve that, a servo motor and relevant sensors, encoders and electronic control programs were added. The control unit of the independent transferring device was integrated into the MICRO II control system, and its control program become parts of the MICRO II control program. The adjustment of film length and seam position would be fulfilled by changing the setting on IPC(Industrial Personal Computer). The results showed that the transferring error reduced from ±2 to ±0.5 mm, and the defective cartons decreased from 20-25 to 0-2 carton/day; the cutting length and transferring position of film were automatically regulated. The modified carton overwrapper YB95A is adaptive for color printed film as well. ©, 2015, Editorial Office of Tobacco Science and Technology. All right reserved. Source


Li J.,East China University of Science and Technology | Wu Z.,East China University of Science and Technology | Cheng F.,East China University of Science and Technology | Li W.,East China University of Science and Technology | And 3 more authors.
Scientific Reports | Year: 2014

MicroRNAs (miRNAs) play important roles in multiple biological processes and have attracted much scientific attention recently. Their expression can be altered by environmental factors (EFs), which are associated with many diseases. Identification of the phenotype-genotype relationships among miRNAs, EFs, and diseases at the network level will help us to better understand toxicology mechanisms and disease etiologies. In this study, we developed a computational systems toxicology framework to predict new associations among EFs, miRNAs and diseases by integrating EF structure similarity and disease phenotypic similarity. Specifically, three comprehensive bipartite networks: EF-miRNA, EF-disease and miRNA-disease associations, were constructed to build predictive models. The areas under the receiver operating characteristic curves using 10-fold cross validation ranged from 0.686 to 0.910. Furthermore, we successfully inferred novel EF-miRNA-disease networks in two case studies for breast cancer and cigarette smoke. Collectively, our methods provide a reliable and useful tool for the study of chemical risk assessment and disease etiology involving miRNAs. Source


A supercritical extraction of characteristic fragrant substances in different fragrant tobacco leaves, which involves the following steps: 1) cutting the tobacco leaves into shreds and placing the shreds into an extraction vessel with supercritical CO


Patent
Shanghai Tobacco Group Co. | Date: 2013-04-07

The present invention relates to the field of tobacco, and more particularly to a use of a saline aqueous solution as a hydrated humectant for tobacco stem. The present invention provides a use of a saline aqueous solution as a hydrated humectant for tobacco stem, and the saline aqueous solution is an aqueous solution of A


Patent
Shanghai Tobacco Group Co. | Date: 2011-07-15

The present invention provides a gas chromatographyinverse gas chromatography combined analysis device, which includes a gas chromatography column and an inverse gas chromatography column, an input end of the gas chromatography column is connected to a sample feeder, an output end of the gas chromatography column is connected to an input end of the inverse gas chromatography column, the output end of the gas chromatography column is further connected to a first detector, the input end of the inverse gas chromatography column is further connected to a carrier gas tube, an output end of the inverse gas chromatography column is connected to a second detector, and the first detector and the second detector are both connected to a signal collector. The present invention not only can investigate adsorption performance of a tested solid adsorption material with respect to a single probe, but also can investigate adsorption performance of different solid adsorption materials with respect to different constituents in a combined probe at the same time, thereby improving the development efficiency of the inverse gas chromatography technologies.

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