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Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department 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.)

Copyright of Food & Fermentation Industries is the property of Food & Fermentation Industries 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.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher 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.)

Copyright of Automotive Engineer (1674-6546) is the property of Auto Engineering Editorial Office 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.)

Copyright of Bulletin of the Chinese Academy of Sciences / Chung-kuo ko Hsueh Yuan Yuan Kan is the property of Institutes of Science & Development, Chinese Academy of 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.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department 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.)

Background The mental health of employees in railway enterprises is related to the safety and stability of railway transportation. As an important factor affecting occupational mental health, job characteristics have attracted the attention of researchers. However, there exists a lack of job characteristic scales with occupational specificity in current researches relevant to the railway industry.Objective To develop a job characteristics questionnaire oriented to railway employees that takes both Job Demands-Resources Model（JD-R） and Chinese actual conditions into essential consideration, so as provide guidance for the research on the mental health of railway employees.Methods Purposive and theoretical samplings were used to select 77employees across 9 railway units as research objects, and interview method was used to conduct qualitative research in order to determine the structural dimensions and items of the questionnaire. The 612 subjects randomly selected from the railway maintenance system went through the preliminary test, then exploratory factor analysis and confirmatory factor analysis were employed to test the questionnaire. After forming a formal questionnaire on the job characteristics of railway employees, it is extended to the other four main industry systems of railway enterprises, responsible for locomotive maintenance, vehicle depot, signal and communication maintenance, and power supply respectively, to verify the stability and effectiveness.Results（1）Exploratory factor analysis showed that the questionnaire included two factors, job demands and job resources, with a total of 14 items. The factor loading of each item ranged from 0. 761 to 0. 916, and the two factors accounted for 71. 02% of the total variance. The results of confirmatory factor analysis indicated good fitting of the two-factor model （χ²/df=3. 310, RMSEA=0. 087, GFI=0. 892, CFI=0. 932, NFI=0. 905, IFI=0. 932）.（2） Confirmatory factor analysis was carried out in four extended samples of locomotive maintenance, vehicle depot, signal and communication maintenance, and power supply, and each result indicated a satisfactory model fit（χ~2/df=2. 678, 4. 741, 4. 868, 3. 502, RMSEA=0. 109, 0. 096, 0. 093, 0. 084,GFI=0. 832, 0. 878, 0. 894, 0. 904,NFI=0. 874, 0. 935, 0. 902, 0. 928,IFI=0. 917, 0. 948, 0. 920, 0. 947）.（3）Job demands in five sub-samples can positively predict job burnout and turnover intention（β =0. 564～0. 686, 0. 425～0. 554, P＜0. 01）. Job resources in five sub-samples can positively predict job performance and job satisfaction（β=0. 594～0. 752, 0. 731～0. 807, P＜0. 01）, and it can also negatively predict job burnout and turnover intention（β =-0. 247～-0. 186,-0. 357～-0. 175,P＜0. 05 or 0. 01）. In sub-samples of locomotive maintenance and power supply, job demands can positively predict job performance（β=0. 242,0. 261, P＜0. 01）. In sub-samples of railway maintenance and signal and communication maintenance, job demands can negatively predict job satisfaction（β =-0. 065,-0. 091, P＜0. 01）.Conclusion The questionnaire has good reliability and validity, and is applicable for the study of occupational mental health research on railway employees. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department 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.)

Copyright of Journal of Vibration, Measurement & Diagnosis is the property of Nanjing Hangkong Daxue 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.)

Copyright of Journal of Hydrobiology is the property of Editorial Department of Journal of Hydrobiology 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.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department 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.)

Polysaccharide is one of the effective components of apple pomace. The effects of enzymatic extraction on the structure and antioxidant activity of polysaccharide were studied in this paper. The structures of enzymatic polysaccharides from enzymatic apple pomace (PEAP) and non enzymatic polysaccharides from apple pomace (PAP) were compared, and their antioxidant activities in vitro were evaluated. Fourier infrared spectroscopy and monosaccharide analysis showed that PAP and PEAP were acidic heteropolysaccharides, mainly composed of arabinose, rhamnose, galactose, glucose, xylose and galacturonic acid with different molar ratios; The molecular weight of PAP is greater than that of PEAP.AFM analysis showed that PEAP had more branched chains than PAP. Compared with PAP,PEAP has stronger antioxidant activity, which can be attributed to the differences in uronic acid content, molecular weight and branching structure between PAP and PEAP. This study provides theoretical data for the application of apple pomace and its polysaccharide. [ABSTRACT FROM AUTHOR]

Copyright of China Brewing is the property of China Brewing Editorial Office 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.)

Copyright of China Brewing is the property of China Brewing Editorial Office 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.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department 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 solve the tunnel construction problems such as low efficiency and high consumption of rock tunnel boring ma, chine (TBM) in high-strength and high abrasion hard rock stratum, cutter head trapped in fault fracture zone stratum, and shield stuck in high stress extrusion stratum. Based on the interaction between TBM disc cutter, cutter head, shield and tunnel surrounding rock, through the statistical analysis of multiple TBM method tunnel engineering data, the functional relationships between disc cutter penetration index and rock mass characteristic index, disc cutter crushing volume wear rate and rock mass characteristic index, TBM equipment utilization and fault width, relative deformation of surrounding rock and strength stress ratio were revealed, and the multi-dimensional TBM adaptability evaluation method was established, which was based on disc cutter excavability and abrasion resistance, the risk of cutter head trapped and shield stuck. The research results provide a quantitative basis for TBM construction method selection, equipment design and solution of construction problems in complex geological tunnels. [ABSTRACT FROM AUTHOR]

Copyright of Experimental Technology & Management is the property of Experimental Technology & Management Editorial Office 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.)

Apple pomace was modified by compound enzyme method to increase the content of water-soluble dietary fiber. The optimum process conditions were optimized by response surface test: Solid-liquid ratio 1∶20,compound enzyme (cellulase 20 U/g; pectinase 80 U/g),time 5.5 h, pH 5.1 and temperature 44 ℃.Under this process condition, the soluble dietary fibers content was 16.84%.Scanning electron microscope results showed that the microstructure of modified apple pomace v changed greatly with larger specific surface area and porosity, exposed more hydrophilic and lipophilic groups, making the apple pomace have better physical properties. The water holding capacity, oil holding capacity and expansion capacity of apple pomace have been significantly improved by (p<0.01),114.74%,104.55% and 137.10% respectively. This study provided certain theoretical and data support for the high value-added processing and application of apple pomace. [ABSTRACT FROM AUTHOR]

Copyright of China Mechanical Engineering is the property of Editorial Board of China Mechanical Engineering 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.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department 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.)

Copyright of Journal of Shaanxi University of Science & Technology is the property of Journal of Shaanxi University of Science & Technology Editorial Department 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.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher 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.)

Copyright of Modern Food Science & Technology is the property of Editorial Office of Modern Food Science & Technology 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.)

Copyright of Journal of Chinese Institute of Food Science & Technology is the property of Journal of Chinese Institute of Food Science & Technology Periodical Office 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.)

Copyright of Journal of Shaanxi University of Science & Technology is the property of Journal of Shaanxi University of Science & Technology Editorial Department 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.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu 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.)

Copyright of Journal of Shaanxi University of Science & Technology is the property of Journal of Shaanxi University of Science & Technology Editorial Department 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.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher 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.)

Copyright of Journal of Shaanxi University of Science & Technology is the property of Journal of Shaanxi University of Science & Technology Editorial Department 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.)