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263 results on '"Ma, Zhi Yuan"'

17. Boost VS2 electrochemical reactive kinetics by regulating crystallographic planes and coupling carbon matrix for high performance sodium-ion storage

Author

Zeng, Min, primary, Wang, Ming-Shan, additional, Chen, Lin, additional, Li, En-Zhi, additional, Yang, Zhen-Liang, additional, Zhou, Dan, additional, Xie, Hai-Jiao, additional, Chen, Jun-Chen, additional, Ma, Zhi-Yuan, additional, Guo, Bing-Shu, additional, Yu, Bo, additional, and Li, Xing, additional

Published
2023
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18. Rip/singularity free cosmology models with bulk viscosity

Author

Meng, Xin-he and Ma, Zhi-yuan

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, General Relativity and Quantum Cosmology
Abstract

In this paper we present two concrete models of non-perfect fluid with bulk viscosity to interpret the observed cosmic accelerating expansion phenomena, avoiding the introduction of exotic dark energy. The first model we inspect has a viscosity of the form ${\zeta} = {\zeta}_0 + ({\zeta}_1-{\zeta}_2q)H$ by taking into account of the decelerating parameter q, and the other model is of the form ${\zeta} = {\zeta}_0 + {\zeta}_1H + {\zeta}_2H^2$. We give out the exact solutions of such models and further constrain them with the latest Union2 data as well as the currently observed Hubble-parameter dataset (OHD), then we discuss the fate of universe evolution in these models, which confronts neither future singularity nor little/pseudo rip. From the resulting curves by best fittings we find a much more flexible evolution processing due to the presence of viscosity while being consistent with the observational data in the region of data fitting. With the bulk viscosity considered, a more realistic universe scenario is characterized comparable with the {\Lambda}CDM model but without introducing the mysterious dark energy., Comment: 9 pages, 6 figures, submitted to EPJ-C

Published
2012
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23. Boost VS2 electrochemical reactive kinetics by regulating crystallographic planes and coupling carbon matrix for high performance sodium-ion storage.

Author

Zeng, Min, Wang, Ming-Shan, Chen, Lin, Li, En-Zhi, Yang, Zhen-Liang, Zhou, Dan, Xie, Hai-Jiao, Chen, Jun-Chen, Ma, Zhi-Yuan, Guo, Bing-Shu, Yu, Bo, and Li, Xing

Abstract

Copyright of Rare Metals is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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26. Simultaneous Inversion of Thickness and Ultrasonic Longitudinal Velocity for Thin Layered Structure Based on Ultrasonic Reflection Coefficient Amplitude Spectrum Matching Analysis

Author

ZHANG Wei, MA Zhi-yuan, HE Li-hua, GAO Jian-ying, LUO Wen, LIN Li, and LEI Ming-kai

Subjects
thin layered material, URCAS, correlation coefficient method, thickness, longitudinal velocity, inversion, Materials of engineering and construction. Mechanics of materials, TA401-492
Abstract

For the overlapped signal and unknown longitudinal velocity leading to difficulty in measuring the thickness of thin layers, a method based on ultrasonic reflection coefficient amplitude spectrum (URCAS) matching analysis technique was proposed to characterize thickness and ultrasonic longitudinal velocity of thin layered structure simultaneously. An inverse algorithm based on the correlation coefficient method was introduced. The thickness and velocity were then determined by matching the theoretical and experimental URCAS within the effective frequency band of ultrasonic probe and inversing the ultrasonic testing parameters which corresponding to the maximum correlation coefficient. Experimental validation was conducted on the radar absorbing coatings (RAC) on the aluminum alloy substrates. The results show that this method can realize extraction of the ultrasonic parameters from the overlapped signal effectively, the relative errors between ultrasonic and micrometer measurement are in the range of 2.53%-3.72% for the thickness, and 2.51%-3.75% for the longitudinal velocity.

Published
2016
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41. In-situ synchrotron high energy X-ray diffraction study of spontaneous reorientation of R phase upon cooling in nanocrystalline Ti50Ni45.5Fe4.5 alloy.

Author

Ma, Zhi-Yuan, Chen, Yu-Xuan, Ren, Yang, Yu, Kai-Yuan, Jiang, Da-Qiang, Liu, Yi-Nong, and Cui, Li-Shan

Abstract

Copyright of Rare Metals is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022
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48. Emerging Bioinspired Artificial Woods

Author

Yu, Zhi‐Long, primary, Qin, Bing, additional, Ma, Zhi‐Yuan, additional, Gao, Yu‐Cheng, additional, Guan, Qing‐Fang, additional, Yang, Huai‐Bin, additional, and Yu, Shu‐Hong, additional

Published
2020
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