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Akademický článek

Development of Short-Circuit Impedance Testing and Setting Calculation Device for Urban Rail Transit Catenary

Autor: HE Baishan, HE Jing, XUE Lei, TANG Mei, LI Panfei, YANG Pengzhou, WANG Qi

Publikováno v: Chengshi guidao jiaotong yanjiu, Vol 27, Iss 10, Pp 177-182 (2024)

Objective The line impedance of urban rail transit catenary is significantly affected by many factors such as wire material, line length, surrounding environment, etc., resulting in significant impedance differences between different lines and differ

Externí odkaz: https://doaj.org/article/bf949af147724024859cf11ada1f6eee

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Akademický článek

Prevalence and risk factors for obstructive pulmonary dysfunction caused by silica dust exposure: a multicenter cross-sectional study

Autor: Li Xin, Tang Mei An, Li Ying, Dai Wei Rong, Huang Lei

Publikováno v: BMC Pulmonary Medicine, Vol 24, Iss 1, Pp 1-8 (2024)

Abstract Objective To understand the prevalence rate of obstructive pulmonary dysfunction in workers exposed to silica dust and analyze its risk factors, so as to provide reference for the formulation of diagnostic criteria for chronic obstructive pu

Externí odkaz: https://doaj.org/article/d536135a97db414a83a784944d01b785

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Akademický článek

Studies on separation and properties of lumbrokinase in Pheretima praepinguis

Autor: Tang Mei, Liu Cao, Liang Zi, Gong Mingfu, Hu Die

Publikováno v: Bangladesh Journal of Pharmacology, Vol 11, Iss Special, Pp S106-S109 (2016)

The purpose of this study was to separate lumbrokinase in Pheretima praepinguis and examine its enzymatic properties. With P. praepinguis as material, lumbrokinase was separated with the salting out method. Lumbrokinase activity was measured with cas

Externí odkaz: https://doaj.org/article/3c1ae57d06544ce4a57dbc8b9573782f

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