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348 results on '"Deng, Zhaohui"'

31. A hybrid approach of case-based reasoning and process reasoning to typical parts grinding process intelligent decision.

Author

Li, Zhongyang, Deng, Zhaohui, Ge, Zhiguang, Lv, Lishu, and Ge, Jimin

Subjects
CASE-based reasoning, DECISION making, SPINDLES (Machine tools), PRODUCTION planning, GRINDING machines
Abstract

After grinding, the machine tool spindle with high surface integrity has a significant impact on its subsequent service life. Therefore, it is necessary to create a reasonable process plan for the grinding process of the machine tool spindle. A hybrid method based on case-based reasoning (CBR) and process reasoning (PR) was proposed in this paper. The subjective and objective weights of feature attributes are determined in the CBR by the AHP method and the CRITIC method, respectively, and the similarities between the latest case and the retrieved case are calculated on the basis of the nearest neighbour algorithm. The most suitable process solution can be selected from the case database by means of CBR. PR is applied to solve the problem that the case cannot be retrieved through CBR or is unsatisfactory. In the case of the grinding machine spindle, the applicability of this technology was demonstrated. Consequently, the results revealed that the surface consistency of the spindle after grinding was substantially increased. A decision-making system based on the proposed approach was developed by using Qt 4.8.7 and SQLite 3. The results demonstrate the viability and efficacy of the hybrid CBR-PR method to rapidly generate process planning for specific parts. [ABSTRACT FROM AUTHOR]

Published
2023
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35. Co‐Solvent Electrolyte Design to Inhibit Phase Transition toward High Performance K+/Zn2+ Hybrid Battery.

Author

Chen, Wei, Wu, Jiahao, Fu, Kai, Deng, Zhaohui, Chen, Xingbao, Cai, Hongwei, Wu, Xinfei, Xing, Boyu, Luo, Wen, and Mai, Liqiang

Subjects
PHASE transitions, AQUEOUS electrolytes, ELECTROLYTES, LITHIUM cells, ENERGY density, DENDRITIC crystals, PROPYLENE carbonate, ELECTRIC batteries
Abstract

Manganese hexacyanoferrate (MnHCF) is one of the most promising cathode materials for aqueous battery because of its non‐toxicity, high energy density, and low cost. But the phase transition from MnHCF to Zinc hexacyanoferrate (ZnHCF) and the larger Stokes radius of Zn2+ cause rapid capacity decay and poor rate performance in aqueous Zn battery. Hence, to overcome this challenge, a solvation structure of propylene carbonate (PC)‐trifluoromethanesulfonate (Otf)‐H2O is designed and constructed. A K+/Zn2+ hybrid battery is prepared using MnHCF as cathode, zinc metal as anode, KOTf/Zn(OTf)2 as the electrolyte, and PC as the co‐solvent. It is revealed that the addition of PC inhabits the phase transition from MnHCF to ZnHCF, broaden the electrochemical stability window, and inhibits the dendrite growth of zinc metal. Hence, the MnHCF/Zn hybrid co‐solvent battery exhibits a reversible capacity of 118 mAh g−1 and high cycling performance, with a capacity retention of 65.6% after 1000 cycles with condition of 1 A g−1. This work highlights the significance of rationally designing the solvation structure of the electrolyte and promotes the development of high‐energy‐density of aqueous hybrid ion batteries. [ABSTRACT FROM AUTHOR]

Published
2024
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