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971.
Microstructure and tensile properties of low cost titanium alloys at different cooling rate 总被引:1,自引:0,他引:1
Titanium and titanium alloys have several advantages, but the cost of titanium alloys is very expensive compared with the traditional metal materials. This article introduces two new low-cost titanium alloys Ti-2.1Cr-1.3Fe (TCF alloy) and Ti-3Al-2.1Cr-1.3Fe (TACF alloy). In this study, we used Cr-Fe master alloy as one of the raw materials to develop the two new alloys. We introduce the microstructure and tensile properties of the two new alloys from β solution treated with different cooling methods. Optica... 相似文献
972.
Shouchao Zhai Yiming Wan Hao Ye 《International Journal of Adaptive Control and Signal Processing》2017,31(2):191-209
In order to improve fault detection (FD) performance, integrated design of residual generation and evaluation is investigated in this paper for trade‐offs between fault detection rate and false alarm rate (FAR). A set‐membership approach is proposed in residual evaluation by adopting a threshold ellipsoid, which enables more design freedom than a conventional threshold value. With the set‐based definitions of fault detection rate and FAR, the integrated design problem is formulated by maximizing the FD performance under a predefined FAR. The joint optimal selection of a residual generator and a threshold ellipsoid is equivalently transformed into a simplified optimization problem of determining an optimal threshold ellipsoid for any given residual generator. A suboptimal solution for the set‐membership‐based integrated FD system design is obtained based on approximated computation of the FD performance. Monte Carlo simulations show the performance improvement of the proposed method compared with an existing integrated design method. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
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He Junchao Wu Haihua Zhong Lei Zhong Qiang Yang Qiang Ye Xicong Liu Zhi Kang Yi 《Journal of Materials Science》2022,57(6):4166-4179
Journal of Materials Science - Thermal insulation composites are widely used in civil and military applications; however, it is difficult to achieve the synergy of multiple technical objectives... 相似文献
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Chen Jie Qing Xianguo Ye Fang Xiao Kai You Kai Sun Qian 《The Journal of supercomputing》2022,78(2):1712-1740
The Journal of Supercomputing - Consensus-based bundle algorithm (CBBA) is a decentralized task allocation algorithm that can produce feasible and conflict-free task assignment solution for... 相似文献
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Zhi Li Wenju Wang Meng Ye Xuedong Liang 《International Journal of Hydrogen Energy》2021,46(35):18453-18465
Lack of hydrogen refueling stations (HRSs) has hindered the diffusion of hydrogen fuel cell vehicles (HFCVs) in the Chinese transport market. By combining the agent-based model (ABM) and the experience weighted attraction (EWA) learning algorithm, this paper explores the impact of government subsidy strategy for HRSs on the market diffusion of HFCVs. The actions of the parties (government, HRS planning department and consumers) and their interactions are taken into account. The new model suggests dynamic subsidy mode based on EWA algorithm yields better results than static subsidy mode: HFCV purchases, HRS construction effort, total number of HRSs and expected HRS planning department profits all outperform static data by around 27%. In addition, choosing an appropriate initial subsidy strategy can increase the sales of HFCVs by nearly 40%. Early investment from government to establish initial HRSs can also increase market diffusion efficiency by more than 76.7%. 相似文献