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522 results on '"Yin, Zhixiang"'

53. A DNA Computing Model on Triple-Stranded for Minimum Spanning Tree Problem

Author

Yin, Zhixiang, Sun, Xia, Xu, Feng, Fang, Xianwen, Xu, Hui, Junqueira Barbosa, Simone Diniz, Series editor, Chen, Phoebe, Series editor, Cuzzocrea, Alfredo, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kara, Orhun, Series editor, Kotenko, Igor, Series editor, Sivalingam, Krishna M., Series editor, Ślęzak, Dominik, Series editor, Washio, Takashi, Series editor, Yang, Xiaokang, Series editor, Pan, Linqiang, editor, Păun, Gheorghe, editor, Pérez-Jiménez, Mario J., editor, and Song, Tao, editor

Published
2014
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64. Constraint Web Service Composition Based on Discrete Particle Swarm Optimization

Author

Fang, Xianwen, Fan, Xiaoqin, Yin, Zhixiang, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Liu, Wenyin, editor, Luo, Xiangfeng, editor, Wang, Fu Lee, editor, and Lei, Jingsheng, editor

Published
2009
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65. C 2 O Nanotubes with Negative Strain Energies and Improvements of Thermoelectric Properties via N-Doping Predicted from First-Principle Calculations.

Author

Wu, Jianbao, Jiang, Liyuan, Li, Xiaoyi, and Yin, Zhixiang

Subjects
STRAIN energy, THERMOELECTRIC materials, ELECTRONIC band structure, CARBON nanotubes, NANOTUBES, BAND gaps
Abstract

In this study, the geometric structure, strain energy, and electronic properties of armchair C 2 O nanotubes (A _ C 2 O N T s (n , n)) and zigzag C 2 O nanotubes   (Z _ C 2 O N T s (n , 0)) are studied in detail. The results show that these nanotubes behave as special shapes; the section of Z _ C 2 O N T s (n , 0) along the axial direction is an n-edge type, and the section tends to be round with an increase in n while the boundary of section along the axial direction for A _ C 2 O N T s (n , n) fluctuates. With an increase in n, the fluctuation disappears gradually, and the section also tends to be round. Compared with C 2 O nanosheets ( g _ C 2 O ), C 2 O nanotubes have similar or even smaller strain energy, when the tube diameter is greater than or equal to 15 Å , the strain energy begins to show a negative value, and the negative value tends to be stable as the pipe diameter increases. Z _ C 2 O N T s start to show negative strain energies from n = 8 and A _ C 2 O N T s from n = 12, indicating their higher stabilities relative to the   g _ C 2 O sheets. The calculation of the electronic band structure shows that Z _ C 2 O N T s are an indirect band gap semiconductor, and A _ C 2 O N T is a direct band gap semiconductor. The band gap value of Z _ C 2 O N T s first increases and then stabilizes with the diameters of the nanotubes, and the band gap value of A _ C 2 O N T s decreases with the increase in the nanotubes and tends to the band gap value of the g _ C 2 O sheet. In addition, the electronic properties and thermoelectric properties of C 2 O N T s (n = 4 , 6 , 8) before and after N-doping were also studied. We found that N-doping changed the electronic and thermoelectric properties of C 2 O N T s . It reduced the nanotube band gap value and significantly improved the thermoelectric figures of merit of Z _ C 2 O N T s (n = 4 , 6 , 8) and A _ C 2 O N T (4 , 4) , which comprised an effective strategy to improve the thermoelectric figure of merit of nanotubes. The results showed that the C 2 O N T s had potential as thermoelectric materials after N-doping, which provided important guidance for designing low-dimensional g _ C 2 O nanostructures. [ABSTRACT FROM AUTHOR]

Published
2023
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66. DNA Computing Model of Graph Isomorphism Based on Three Dimensional DNA Graph Structures

Author

Yin, Zhixiang, Cui, Jianzhong, Yang, Jing, Liu, Guangwu, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Huang, De-Shuang, editor, Zhang, Xiao-Ping, editor, and Huang, Guang-Bin, editor

Published
2005
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73. First‐Principles Investigations to Evaluate NiCl2/NiF2 as Cycle‐Catalyzed Electrolyte Additives to Improve Li–S Batteries' Performance.

Author

Wang, Bingqian, Lu, Shuhan, Zhang, Panyu, Jiang, Xiaoli, Zhao, Xinxin, Wang, LiLi, Yin, ZhiXiang, and Wu, Jianbao

Subjects
LITHIUM sulfur batteries, ELECTROLYTES, DENSITY functional theory, CATALYSIS, CHEMICAL bond lengths, ACTIVATION energy
Abstract

The potential application of two electrolyte additives, NiCl2‐DME and NiF2‐DME, in lithium–sulfur batteries is investigated by density functional theory calculations. The results show that both electrolyte additives can effectively adsorb soluble lithium polysulfide (LiPSs) in the electrolyte. With the progress of the charging–discharge reaction, NiCl2 and NiF2 separate from Li2Sn when it is converted to S8 and recombine with 1,2‐dimethoxy‐ethane (DME) to achieve the purpose of cyclic adsorption of polysulfide in the electrolyte. At the same time, NiF2 and NiCl2 also have a catalytic effect in the cycling process. When adsorbed with Li2Sn, the bond length of the Li–S bond in Li2Sn is elongated, which causes the reduction of the Li2Sn activation energy, making it easier to be oxidized, and accelerating the conversion speed of Li2Sn and reducing Li2S, Li2S2 deposition on the surface of the electrode. Therefore, NiCl2‐DME and NiF2‐DME are ideal dual‐function electrolyte additives. [ABSTRACT FROM AUTHOR]

Published
2023
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