Zobrazeno 1 - 10
of 401
pro vyhledávání: '"Dahai ZHANG"'
Publikováno v:
CSEE Journal of Power and Energy Systems, Vol 10, Iss 1, Pp 197-207 (2024)
Detection of high impedance faults (HIFs) has been traditionally a main challenge in the protection of distribution systems, since they do not generate enough current to be reliably detected by conventional over-current relays. Data-based methods are
Externí odkaz:
https://doaj.org/article/fa595238242d438dbcdf344df3eaac2e
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 18, Iss 6, Pp 30-38 (2023)
ObjectiveThe purpose of this paper is to study the effects of cavitation models on the simulation of full-scale propeller cavitation. MethodsThe minimum rotational speed of the propeller required for cavitation is predicted by the Bernoulli equation,
Externí odkaz:
https://doaj.org/article/6232810b45e64c538fa9a4a39a53f1dc
Publikováno v:
Water Science and Technology, Vol 88, Iss 11, Pp 2826-2836 (2023)
The treatment and disposal of activated sludge are currently challenging tasks in the world. As a common biological engineering technology, biological fermentation exists with disadvantages such as low efficiency and complex process. Ozone pretreatme
Externí odkaz:
https://doaj.org/article/cad287bf146640a2a339b0bc1c5e8d04
Publikováno v:
Journal of Nanobiotechnology, Vol 21, Iss 1, Pp 1-30 (2023)
Abstract Assessing the antimicrobial activity of engineered nanomaterials (ENMs), especially in realistic scenarios, is of great significance for both basic research and applications. Multiple analytical methods are available for analysis via off-lin
Externí odkaz:
https://doaj.org/article/6ff17e262dcf484f8f14fa93a6eff447
Autor:
Bohan Wang, Zhiwei Sun, Yuanyuan Zhao, Zhiyan Li, Bohai Zhang, Jiken Xu, Peng Qian, Dahai Zhang
Publikováno v:
Energies, Vol 17, Iss 8, p 1853 (2024)
Based on the mutual compensation of offshore wind energy and wave energy, a hybrid wind–wave power generation system can provide a highly cost-effective solution to the increasing demands for offshore power. To provide comprehensive guidance for fu
Externí odkaz:
https://doaj.org/article/decfcbe1e88049d39da204034129b194
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 4, p 635 (2024)
The vast oceans could play a pivotal role in resolving the conflicts between population, resources, and the environment in the twenty-first century [...]
Externí odkaz:
https://doaj.org/article/c4c93326adb94c9397975243d3a6d511
Autor:
Wen He, Dahai Zhang, Lu Zhang, Zhuanyi Ai, Zechong Guo, Tongyi Yang, Linzhi Zhai, Cheng Huang
Publikováno v:
Fermentation, Vol 10, Iss 3, p 158 (2024)
The integration of a microbial electrolysis cell (MEC) is an effective strategy for enhancing the efficiency and stability of an anaerobic digestion (AD) system for energy recovery from waste-activated sludge (WAS). Typically, electrodes are arranged
Externí odkaz:
https://doaj.org/article/a3997caa904448b488eef7aad27241bb
Publikováno v:
Energies, Vol 17, Iss 4, p 819 (2024)
Among renewable energy sources, wind energy is regarded as one of the fastest-growing segments, which plays a key role in enhancing environmental quality. Wind turbines are generally located in remote and harsh environments. Bearings are a crucial co
Externí odkaz:
https://doaj.org/article/595e70970fcc499387e3d5678bf7a2a6
Publikováno v:
IET Renewable Power Generation, Vol 17, Iss 1, Pp 95-109 (2023)
Abstract Due to the complicated transients and the possibility of transition from a minor fault in AC subsystems to a severe blocking event of a high‐voltage direct–current (HVDC) transmission line, the study of AC‐DC hybrid power systems requi
Externí odkaz:
https://doaj.org/article/90d87a309ee946709716f9ae4d374285
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 17, Iss 3, Pp 228-236 (2022)
ObjectiveIn order to optimize the shape of the floating buoy of a multi-degree-of-freedom wave energy converter to improve its energy conversion efficiency, a method for shape optimization based on a genetic algorithm (GA) is proposed. MethodsA B-spl
Externí odkaz:
https://doaj.org/article/8a9355419fe146e8ba236a5bafc88f9f