Zobrazeno 1 - 10
of 9 831
pro vyhledávání: '"Zhang Pengfei"'
Publikováno v:
Polish Journal of Chemical Technology, Vol 26, Iss 3, Pp 16-20 (2024)
Methoxypolyethylene glycol 1900 and α-bromoisobutanoyl bromide were utilized for alcoholysis reaction to obtain a macromolecular initiator. Then, a simple amphiphilic diblockpolymer (mPEG-PDMAEMA) based on the initiator and dimethylaminoethyl methac
Externí odkaz:
https://doaj.org/article/3626336a34224b5a8ec487707d2ae64c
Publikováno v:
Contributions to Tobacco and Nicotine Research, Vol 33, Iss 3, Pp 164-172 (2024)
Cigarette draw resistance and filter pressure drop are both critical physical indicators for the tobacco industry, which use testing equipment to measure the two parameters. Pressure drop standards are used as transfer standards to ensure the accurac
Externí odkaz:
https://doaj.org/article/7830c9e269e74e4695d24a61f546345b
Publikováno v:
矿业科学学报, Vol 9, Iss 4, Pp 519-528 (2024)
This study investigates the fracture evolution patterns of overlying strata under the mining conditions of close-distance coal seams.Taking the 9305 working face of Anshun Coal Mine as the research object, this study probed into the evolution of disp
Externí odkaz:
https://doaj.org/article/a5d365d7e93c48af97fdae2d1038f4fe
Publikováno v:
Youqi dizhi yu caishoulu, Vol 31, Iss 4, Pp 13-23 (2024)
Jiyang Depression， as one of the mature exploration areas in Bohai Bay Basin， has been explored and developed for over 60 years. It is urgent to solve the theoretical understanding problems such as oil and gas resource potential， exploration di
Externí odkaz:
https://doaj.org/article/99852410f1904cb4b58c2e9c85692385
Publikováno v:
Youqi dizhi yu caishoulu, Vol 31, Iss 4, Pp 96-111 (2024)
The Carboniferous and Permian are important coal-bearing strata in North China， which develop various oil and gas resources such as coalbed methane， coal-bearing shale gas， tight coal-bearing sandstone gas， and coal-formed oil. Massive resear
Externí odkaz:
https://doaj.org/article/ddb5a85e1f5641db96b321a02999ba03
Autor:
ZHANG Pengfei
Publikováno v:
Chengshi guidao jiaotong yanjiu, Vol 27, Iss 7, Pp 245-248 (2024)
Objective AAC (luminum alloy conductive) rails are widely used in rail transit power supply systems. However, a significant deviation often exists between the calculated and tested values of the permissible current carrying capacity of AAC rails, whi
Externí odkaz:
https://doaj.org/article/a85ef7edf9e64d4a989b45b98448f157
Autor:
Heng Yanyan, Wei Wei, Cheng Linzhong, Wu Feifei, Dong Haoyu, Li Jingxia, Fu Jianing, Yang Bingjie, Liang Xinyue, Liu Chunyan, Li Haiju, Liu Haihua, Zhang Pengfei
Publikováno v:
Acta Biochimica et Biophysica Sinica, Vol 56, Pp 892-904 (2024)
Diabetes accelerates vascular senescence, which is the basis for atherosclerosis and stiffness. The activation of the NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome and oxidative stress are closely associated with progressive
Externí odkaz:
https://doaj.org/article/b9425806076144fe8ac56c063a6b9f42
Publikováno v:
Guoji Yanke Zazhi, Vol 24, Iss 5, Pp 686-690 (2024)
AIM: To explore the synthesis of thermo-sensitive poly N-isopropylacry-lamide(PNIPAAm)and the petri dish grafted with PNIPAAm hydrogels by the electron accelerator, as well as the growth conditions and the biological characteristics of rabbit corneal
Externí odkaz:
https://doaj.org/article/85b72e3d64cd45c1980997fdd64549b3
Autor:
Chen Zhihao, Shi Zhandong, Zhang Pengfei, Ding Li, Zhang Qing, Li Zhigang, Sun Miao, Ye Chao, Wang Hao, Wu Xiaosong, Li Dong
Publikováno v:
Contributions to Tobacco and Nicotine Research, Vol 32, Iss 4, Pp 140-146 (2023)
The airtightness of heated tobacco product (HTP) packs is a very important indicator for the product quality and is also of great importance during the conditioning process. A method for evaluation of the airtightness was developed based on the air p
Externí odkaz:
https://doaj.org/article/aa4feb5fa4004ed89ff37a6bffea04de
Publikováno v:
Jixie chuandong, Vol 47, Pp 133-138 (2023)
Based on the analysis of the inspection environment and requirements for nuclear power plant rectangular variable cross-section pipes, this study proposes a new design scheme of the film placing robot, introduces the structure and operating principle
Externí odkaz:
https://doaj.org/article/3074df1efb184973b512fd7d90a4a671