Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Wenkun Wang"'
Publikováno v:
High-Speed Railway, Vol 2, Iss 2, Pp 71-76 (2024)
The sliding chairs are important components that support the switch rail conversion in the railway turnout. Due to the harsh environmental erosion and the attack from the wheel vibration, the failure rate of the sliding chairs accounts for up to 10%
Externí odkaz:
https://doaj.org/article/49281d7c410e4cfab4b1a5b7fbaa526b
Autor:
Chihong Zhang, Zhen Zhang, Deliang Wang, Wenkun Wang, Bo Jin, Tao Wen, Lihua Ye, Zhong-Ning Chen, Hu Cai
Publikováno v:
Chemical Communications. 59:5217-5220
A novel direct construction of C–N bonds for efficient synthesis of diverse quinoxalines by α-imino radicals.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9cdf4c6dc795cd9d6766c9c772ca4c1
https://doi.org/10.1039/d3cc00086a
https://doi.org/10.1039/d3cc00086a
Publikováno v:
Organic Chemistry Frontiers.
A metal-free intramolecular C(sp2)–H/N–H amination between pyridines and arylamines is realized, which provides efficient access to α-carbolines. This methodology exhibits excellent applicability and, thus, holds attractive application potential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e2e5b0d686f69ed0e0f74853426df71
https://doi.org/10.1039/d3qo00338h
https://doi.org/10.1039/d3qo00338h
Publikováno v:
International Journal of Safety and Security Engineering. 10:707-712
Fire is one of the most common production safety accident. The trend of fire can be mastered by analyzing the historical data. This paper explores the features of recent fires in China, predicts fire by two methods, namely, grey theory, and grey Mark
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbdef13cd49bb02aa927204f13a9525d
https://doi.org/10.18280/ijsse.100516
https://doi.org/10.18280/ijsse.100516