Search

Copyright of Hydrogeology & Engineering Geology / Shuiwendizhi Gongchengdizhi is the property of Hydrogeology & Engineering Geology 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 Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press 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 Rock & Mineral Analysis is the property of Editorial Board of Rock & Mineral Analysis 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 Plastics / Zhongguo Suliao is the property of Journal Office of CHINA PLASTICS 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 Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition 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.)

Aiming at the problem that the traditional thermal network model is not suitable for IGBT short-circuit junction temperature measurement, based on the analysis of the failure mechanism of IGBT in the case of transient short-circuit, the energy value of IGBT short-circuit failure was defined. The evolution law of the critical energy value of IGBT under different initial temperature and different bus voltage was found, and finite element thermoelectric coupling model was established. The simulation results showed that with the increase of DC bus voltage, initial temperature and current density, the short-circuit maintenance time and critical energy value of IGBT would be greatly reduced while the critical temperature point of IGBT failure was independent of the initial temperature; the heat transfer before IGBT failure only reached the solder layer during the short-circuit process, and the maximum temperature point of IGBT was distributed at the boundary of the depleted layer at the instant of short-circuit. [ABSTRACT FROM AUTHOR]

Objective To investigate the correlation of tongue manifestations and FibroScan value in patients with post-hepatitic cirrhosis and provide objective evaluation of illness severity and pathogenesis. Methods The clinical information extraction table of hepatitis cirrhosis was used to collect the general information of the patients condition，the FS value of the tongue image and etc. The data were inputted into Excel, and grouped according to whether there was any tongue picture or not. SPSS 20. 0 software was used to analyze the clinical information of patients with descriptive statistical analysis, including t test，chi-square test，and rank sum test. Results In 108 patients with post-hepatitic cirrhosis，the minimum value of FS was 4. 10 kPa and the maximum value was 75. 00 kPa. The mean value was (24. 07 ± 18. 43) kPa; compensated stage (16. 18 ±10. 06) kPa, decompensated stage (38. 03 士 211. There was significant difference between the two stages (P < 0. 05). FS of the crimson tongue was highest in the color of tongue. In tongue shape，Fs of thin tongue was higher than other tongues. In tongue coating, dry and yellow coating were higher than others. Among all the groups, only the bulgy tongue group，the cracked tongue group and the dry fur group had significant diiferences (P < 0. 05)， but there was no significant diiference between other groups. Conclusion FS value appears to ke higher in the patients with thin tongue，fissured tongue and dry coating. It shows that the higher the FS value of heat syndrome，yin deficiency，blood deficiency and injury，the more serious the condition of liver cirrhosis is when the above three tongue signs appear in the patients with hepatitis and liver cirrhosis. This indicates that FS value has a certain correlation with tongue changes. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board 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.)