4篇
您的检索式：作者名="Qiangang Xu"
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| 1 | Wettability of molten Zr_(55)Cu_(30)Al_(10)Ni_5 on alumina and zirconia显示文摘The wetting behavior of molten Zr55Cu30Al10Ni5 on Al2O3 and ZrO2 was studied using the sessile drop method. The results show that the nonwetting-to-wetting transition for the Zr55Cu30Al10Ni5/ZrO2 wetting system takes place at 1193 K. The wetting of molten Zr55Cu30Al10Ni5 on Al2O3 is a non-reactive wetting. Owing to the formation of diffusion band at the front of the wetting tip in the Zr55Cu30Al10Ni5/Al2O3 system, the wettability of Al2O3 is better than that of ZrO2. | XU Qiangang WU Baoling ZHANG Haifeng HU Zhuangqi | 2007 | Rare Metals2007，26，3： | 3 |
| 2 | A Reinforcement-learning-based Bidding Strategy for Power Suppliers with Limited Information显示文摘The power market is a typical imperfectly competitive market where power suppliers gain higher profits through strategic bidding behaviors.Most existing studies assume that a power supplier is accessible to the sufficient market information to derive an optimal bidding strategy.However,this assumption may not be true in reality,particularly when a power market is newly launched.To help power suppliers bid with the limited information,a modified continuous action reinforcement learning automata algorithm is proposed.This algorithm introduces the discretization and Dyna structure into continuous action reinforcement learning automata algorithm for easy implementation in a repeated game.Simulation results verify the effectiveness of the proposed learning algorithm. | Qiangang Jia Yiyan Li Zheng Yan Chengke Xu Sijie Chen | 2022 | Journal of Modern Power Systems and Clean Energy2022，10，4： | 1 |
| 3 | Effect of Grain Boundary on the Wettability and Interfacial Morphology in the Molten Bi/Cu System显示文摘The wetting behavior of molten Bi on polycrystalline Cu substrate and single crystal Cu substrate was studied bythe sessile drop method in the temperature range from 673 to 873 K. At low temperature the wetting behaviors ofmolten Bi on both types of Cu substrate were similar. However, at high temperature, the equilibrium contact angleof polycrystalline Cu substrate was lower than that of single crystal Cu substrate, because the preferred dissolutionof grain boundaries leads to a smaller liquid/solid interfacial energy for polycrystalline Cu substrate. The formationmechanism of arrow-shaped Cu grains at the Bi/single crystal Cu interface is also discussed. | Qiangang XU, Haifeng ZHANG, Bingzhe DING Zhuangqi HUShenyang National Lab. for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China | 2003 | Journal of Materials Science & Technology2003，19，3： | 1 |
| 4 | Strength Degradation of Wood Members Based on the Correlation of Natural and Accelerated Decay Experiments显示文摘An accelerated decay test and a natural decay test were conducted synchronically to explore the strength degradation of decaying wood members under long-term exposure to natural environment.A natural decay test was carried out to measure the bending strength,compressive strength parallel to grain and modulus of elasticity of the wood members,with 6 groups of specimens decayed in natural environment for 3 to 18 months respectively.To compare with corresponding decay test,in which 6 other groups of specimens were measured under accelerated conditions.The experimental data collected were evaluated by Pearson productmoment for the correlation.The results indicate that the mechanical properties of the accelerated decay were highly correlated with those in natural environment,both of which decreased in the same trend.Under the given test conditions,the mean value of the accelerated decay test data were curve-fitted to achieve the time-dependent degradation model of the bending strength,the compressive strength parallel to grain,as well as the modulus of elasticity.Due to the high correlation,the acceleration shift factors(ASF)of the two tests were derived,where the bending strength of 2.934,the compressive strength parallel to grain of 2.519 and the elastic modulus of 2.346 were employed to formulate the strength degradation models in the long-term natural environment.The results verify that the exponential functionσ=σ0e^(-βt)enables to exactly capture the degradation of the mechanical properties of wood members decayed in natural environment. | Xueliang Wang Qiangang Xu Xiuxin Wang Junhui Guo Wancheng Cao Chun Xiao | 2020 | Journal of Renewable Materials2020，8，5： | 1 |
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