Zobrazeno 1 - 10
of 4 094
pro vyhledávání: '"ZHANG Jianfeng"'
Publikováno v:
Heliyon, Vol 10, Iss 19, Pp e38760- (2024)
This study examines the impact of environmental, social and governance (ESG) rating changes on fund shareholding based on rating data from five agencies. Using a sample of Shanghai and Shenzhen A-share listed companies in China spanning from 2019 to
Externí odkaz:
https://doaj.org/article/c5b9605cb9e6442fa7a2fdb032f02d89
Publikováno v:
You-qi chuyun, Vol 41, Iss 11, Pp 1212-1227 (2023)
Understanding the mechanisms governing hydrate formation and the flow characteristics of slurry in oil-water systems is crucial for developing effective hydrate risk management strategies and ensuring safe pipeline operations. This paper provides an
Externí odkaz:
https://doaj.org/article/ca568fa9490d4f29b8671c15fa13e131
Publikováno v:
Cailiao gongcheng, Vol 51, Iss 7, Pp 136-145 (2023)
The ultrafine WC powders with particle size of 0.5 μm were coated by nano Co particles for preparation of the fine WC/Co powder. Then it was mixed with the coarse WC and Co powders, following compacted and sintered in vacuum at 1420 ℃ for 1 h for
Externí odkaz:
https://doaj.org/article/1c35140ca0444a87a18b674f55eb5263
Publikováno v:
Applied Mathematics and Nonlinear Sciences, Vol 9, Iss 1 (2024)
In the background of the era of big data, the information management system of engineering archives has become more comprehensive and perfect because of the application of information technology. The application of deep learning model makes the manag
Externí odkaz:
https://doaj.org/article/2d01b3a77cfb431393ee5ab7acc5d6a1
Publikováno v:
Hangkong gongcheng jinzhan, Vol 14, Iss 2, Pp 136-144 (2023)
Structural strength is a key concern in fighter′s design and development. Fatigue strength of an aircraft determines important indicators such as safety, durability and reliability of the aircraft. Full-aircraft fatigue test is an important method
Externí odkaz:
https://doaj.org/article/841b816b2edc43969a0a269851585f4f
Publikováno v:
Hangkong gongcheng jinzhan, Vol 14, Iss 2, Pp 152-159 (2023)
With the development of aircraft demand, and emerging of new material and new process, the test and validation technology of aircraft structure strength will also face new challenges. As the key measures of networking and intelligentization, 5G techn
Externí odkaz:
https://doaj.org/article/ca3b6dba5fd74917aa8ebe0bd0837ac4
Publikováno v:
Advances in Mechanical Engineering, Vol 15 (2023)
In order to solve the problem of torque-ripple in the control system of ship main propulsion motor controlled by direct torque control, this paper proposes a super-twisting sliding mode calculation method based on the traditional sliding mode control
Externí odkaz:
https://doaj.org/article/48966cc868364243b0f3a3c99128493f
Publikováno v:
IEEE Access, Vol 11, Pp 120209-120221 (2023)
Vehicles often face congestion at airport curbsides because private vehicles, taxis, and ride-hailing vehicles compete for limited space while dropping off passengers. This competition may lead to blockages and long dwell times, thus worsening the co
Externí odkaz:
https://doaj.org/article/57d65225d1464768b4dce9643bfa0c03
Publikováno v:
Open Medicine, Vol 17, Iss 1, Pp 536-549 (2022)
High circ_0020123 expression is associated with poor prognosis in patients with non-small cell lung cancer (NSCLC) as previously reported. Whether circ_0020123 also plays an oncogenic role in lung adenocarcinoma (LUAD) is still unknown. Additionally,
Externí odkaz:
https://doaj.org/article/48e853454c9249d2b771ea253801322e
Publikováno v:
Guan'gai paishui xuebao, Vol 40, Iss 9, Pp 118-124 (2021)
【Objective】 Water scarcity hinders agricultural production in many countries, and how to rationally allocate water resources for irrigation is hence important to make the most of the limited water resources in areas such as northern and northwest
Externí odkaz:
https://doaj.org/article/b88379118d8b4d5a86ec2833e55c4425