Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Yongyong JIA"'
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 8, Pp 74-82 (2024)
With the increasing depth of coal seam mining in China, the consequences of coal and gas outburst accidents are becoming more and more serious, which poses a great threat to mine safety production. Tectonic coal is one of the main coal sample types p
Externí odkaz:
https://doaj.org/article/26f024cc61874ebda76fb88744db323a
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 3703-3711 (2024)
The effect of shot peening treatment on dry sliding wear behavior of medium manganese steel in as-hot rolled and solution-aging states were studied. The results show that before shot peening, the wear resistance of the solution-aging sample was bette
Externí odkaz:
https://doaj.org/article/098962ba9b7248d9bd919e71c2a8ce02
Autor:
Pengxiang ZHAO, Risheng ZHUO, Shugang LI, Haifei LIN, Zechen CHANG, Yongyong JIA, Quan JIN, Yuanjia LIU
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 2, Pp 135-149 (2024)
Many factors combine to influence the spatial distribution characteristics of overburden fracture during the increasingly intense mining process in coal mines. The characteristics of overburden fracture distribution has important significance in guid
Externí odkaz:
https://doaj.org/article/d150317f191645f2b1b365c8009a91f5
Autor:
Zhen Wang, Honglin Liu, Yuanxin Zhang, Zhiwen Chen, Rumeng Zhao, Yongyong Jia, Mingchao Yong, Guodong Li
Publikováno v:
Minerals, Vol 14, Iss 5, p 513 (2024)
To realize the large-scale utilization of municipal solid waste incineration (MSWI) fly ash in the field of building materials and to reduce the cost of coal mine backfill mining, the effects of the mixing ratio of cementitious materials, the particl
Externí odkaz:
https://doaj.org/article/a89bea705799438a8cc97281e7bde11a
Publikováno v:
Minerals, Vol 14, Iss 1, p 66 (2024)
The east–west-trending South Tibetan Detachment System (STDS) and north–south-trending rifts (NSTRs) are the two main types of extensional structures that have developed within the Tibetan Plateau during continent–continent collision since the
Externí odkaz:
https://doaj.org/article/b7d896c3bc764bef8345432e1c34deb1
Publikováno v:
World Electric Vehicle Journal, Vol 15, Iss 1, p 24 (2024)
With the extensive promotion of new energy vehicles, the number of electric vehicles (EVs) in China has increased rapidly. Electric vehicles are densely parked in garages, which means parking garages contain a large amount of idle energy storage reso
Externí odkaz:
https://doaj.org/article/e40817b00a274722ba12145439fe29ea
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 51-58 (2022)
This article mainly focuses on DC voltage control loop of PMSG which affecting the subsynchronous oscillation (SSO) stability. Based on the established general dynamic interconnection model, the oscillation stability region of DC voltage control para
Externí odkaz:
https://doaj.org/article/a2fcc7e95b334f98ae8c54bda8530089
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 1125-1136 (2022)
In order to deal with the volatility caused by the high proportion of renewable energy, Europe has established a cross-regional balancing market. The European experience and practices in the cross-regional balancing market can bring reference for the
Externí odkaz:
https://doaj.org/article/bb823c6d2f854b7e9751737207c9993c
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 1099-1109 (2022)
Nowadays, the transaction scale of the cross-provincial electricity market in China has increased, and the problem of transmission capacity allocation attracts the government’s attention. During the development of the European unified electricity m
Externí odkaz:
https://doaj.org/article/7a82d064adda419f9cd4d885c111e7fb
Autor:
Cheng Huang, Zheyu Du, Tianyao Ji, Zhe Chen, Runze Liu, Zhaoxia Jing, Qian Zhou, Yongyong Jia
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 1283-1293 (2022)
The design of the power generation capacity adequacy mechanism requires comprehensive consideration of political goals, power systems, power markets and other factors. Although various adequacy mechanisms have been developed and practiced, they all s
Externí odkaz:
https://doaj.org/article/44c6ba7bc75c4d7c9ea7dc3c36fec74f