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Co-free/Co-poor high-Ni cathode for high energy,stable and low-cost lithium-ion batteries

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Rare Metals 2023年第7期42卷 2214-2225页

作者： Zhe-Dong Liu Chun-Ying Wang Jing-Chao Zhang Jia-Wei Luo cui-hua zeng Wei-Di Liu Rui Liu Ya-Nan Chen School of Materials Science and Engineering Shandong University of Science and TechnologyQingdao266590China School of Materials Science and Engineering Tianjin UniversityTianjin300072China Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbaneQLD4072Australia

Advanced cathode materials have been considered as the key to significantly improve the energy density of lithium-ion batteries(LIBs).High-Ni layer-structured cathodes,especially with Ni atomic content above 0.9(LiN1_(x)M_(1-x)O_(2),x≥0.9),exhibit high capacity to be commercially available in electric vehicles(EVs).However,the intrinsic structure instability of high-Ni materials and the negative impacts severely restrict their further applic *** addition,Co has various effective efforts to stabilize the layered ***,due to the high cost of Co,it is required to be ***,modification methods on increasing the stability of high-Ni cathode with the reduction of Co content have been widely *** this review,we summarized various effective research progresses and several potential modification strategies of Cofree/Co-poor layered c athodes with Ni content over *** challenges and development opportunities of high-Ni,Cofree/Co-poor cathodes are further overviewed to meet the future commercial energy demands.

关键词： Lithium-ion batteries(LIBs) Co-free/poor High-Ni Cathode materials

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自调整非线性遗传算法

系统仿真学报 2003年第5期15卷 742-744页

作者：崔志华曾建潮徐玉斌太原重型机械学院系统仿真与计算机应用研究所太原030024

通过对简单遗传算法的理论分析,得出了复制、杂交、变异等算子的每次作用均相当于对所作用的个体进行一次线性变换。因此,通过对传统遗传算子进行修改,作者提出了非线性遗传算法。本文发现规范化操作对算法的计算效率有很大的影响,并且... 详细信息

通过对简单遗传算法的理论分析,得出了复制、杂交、变异等算子的每次作用均相当于对所作用的个体进行一次线性变换。因此,通过对传统遗传算子进行修改,作者提出了非线性遗传算法。本文发现规范化操作对算法的计算效率有很大的影响,并且给出各遗传算子的一种等价线性表示。因此,如果针对不同的优化问题动态的进行规范化操作及遗传算子的选择,将会大大提高算法的效率。本文提出一种新的自调整非线性遗传算法(Self-Ajusting Nonlinear Genetic Algorithm,SANGA),该算法通过规范化操作的动态选择,结合简单的遗传算子,对算法的效率有很大的提高。仿真结果表明该算法的有效性。

关键词：自调整非线性遗传算法规范化操作遗传算法

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基于代数杂交算子的变异算子机理分析

太原重型机械学院学报 2002年第4期23卷 350-352,363页

作者：崔志华曾建潮太原重型机械学院系统仿真与计算机应用研究所太原030024

利用布尔代数的理想将遗传算法 (GAs)中的个体空间进行等价分类后 ,本文利用代数杂交算子 ,对变异算子的运行机理进行了分析 ,并得出了若干结果。作为其应用。

关键词：代数杂交算子变异算子等价类遗传算法

Electronic structure and properties of FeS_2 with the space groups of Pa3 and P1

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International Journal of Minerals,Metallurgy and Materials 2013年第7期20卷 671-677页

作者： cui-hua Zhao Bo-zeng Wu Jian-hua Chen Yu-qiong Li Ye Chen School of Chemistry and Chemical Engineering Guangxi University China Tin Group Co. Ltd. College of Material Science and Engineering Guangxi University College of Resources and Metallurgy Guangxi University

The electronic structure and properties of FeS2 with the space groups of Pa3 and P1 were studied by the density functional theory. The generalized-gradient approximation exchange-correlation functional was used in conjunction with a plane wave-ultrasoft pseudopotential representation. Calculation results show that differences are observed in electronic structures and properties between Pa3 and P1 crystals. The band gap and energy loss of P1 are smaller than those of Pa3 crystal, while the dielectric constant, conductivity, refractive index, extinction coefficient, and intensity of optical absorption of P1 are larger than those of Pa3. These behaviors are attributed to the differences in symmetry, atomic arrangement, and Mulliken bond population of each unit for Pa3 and P1 crystals.

关键词： pyrites electronic structure optical properties crystal structure density functional theory

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搜索全局最优解的一种混合遗传算法

太原重型机械学院学报 2003年第1期24卷 51-53页

作者：崔志华曾建潮太原重型机械学院系统仿真与计算机应用研究所 030024

针对遗传算法求解多值函数极值的缺点 ,本文提出一种混合遗传算法 ,基本思想为通过某种方法获得初始种群 ,然后在遗传过程中逐步修改适应值函数 ,以提高其搜索速度和精度。经实例仿真。

关键词：全局最优解混合遗传算法仿真搜索速度

Shake table experimental study of cable-stayed bridges with two different design strategies of H-shaped towers

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Earthquake Engineering and Engineering Vibration 2021年第2期20卷 483-493页

作者： Xu Yan cui Cunyu zeng zeng zeng Shijie State Key Laboratory for Disaster Reduction in Civil Engineering Tongji UniversityShanghai 200092China China Three Gorges Project Development Co. LtdChengdu 610041China

As one of the main load-carrying components of cable-stayed bridges,bridge towers are typically required to remain elastic even when subjected to severe ground motions with a 2%-3%probability of exceedance in 50 *** fulfill this special requirement imposed by current seismic design codes,reinforcement ratios in the bridge towers have to be kept significantly higher than if limited ductility behavior of the tower is *** addition,since the foundation capacity is closely related to the moment and shear capacities of the bridge tower,a large increase in bridge construction cost for elastically designed cable-stayed bridge is *** further investigate the possibility of limited ductility bridge tower design strategies,a new 1/20-scale cable-stayed bridge model with H-shaped bridge towers designed according to strong strut-weak tower column design was *** shake table experimental results are compared with a previous strong tower column-weak strut designed full bridge model.A comparison of the results show that ductility design with plastic hinges located on tower columns,i.e.,strong strut-weak tower column design,is another effective seismic design strategy that results in only small residual displacement at the top of the tower column,even under very severe earthquake excitations.

关键词： cable-stayed bridge shake table experiment limited ductility design H-shaped bridge tower seismic design

Base position planning of mobile manipulators for assembly tasks in construction environments

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Advances in Manufacturing 2023年第1期11卷 93-110页

作者： Dai-Jun Xie Ling-Dong zeng Zhen Xu Shuai Guo Guo-hua cui Tao Song Shanghai Key Laboratory of Intelligent Manufacturing and Robotics School of Mechatronic Engineering and AutomationShanghai UniversityShanghai200444People’s Republic of China National Demonstration Center for Experimental Engineering Training Education Shanghai UniversityShanghai200444People’s Republic of China School of Mechanical and Automotive Engineering Shanghai University of Engineering ScienceShanghai201620People’s Republic of China Shanghai Collaborative Innovation Center of Intelligent Manufacturing Robot Technology for Large Components Shanghai201620People’s Republic of China

With good mobility and flexibility,mobile manipulators have shown broad applications in construction *** position(BP)planning,which refers to the robot autonomously determining its working station in the environment,is an important technique for mobile manipulators when performing the construction assembly task,especially in a large-scale construction ***,the BP planning process is tedious and time-consuming for a human worker to carry ***,to improve the efficiency of construction assembly tasks,a novel BP planning method is proposed in this paper,which can lead to appropriate BPs and minimize the number of BPs at the same ***,the feasible BP regions are generated based on the grid division and the variable workspace of the mobile ***,the positioning uncertainties of the mobile manipulator are considered in calculating the preferred BP areas using ***,a set coverage optimization model is established to obtain the minimum number of BPs using an optimization algorithm according to the greedy *** simulated experiment based on a 9-degree of free(DoF)mobile manipulator has been *** results illustrated that the time for BP planning was significantly reduced and the number of BPs was reduced by 63.41%compared to existing manual planning,which demonstrated the effectiveness of the proposed method.

关键词： Base position(BP)planning Mobile manipulators Variable workspace Positioning uncertainties Construction environments

Short-range disorder in MOF glasses

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National Science Review 2021年第5期8卷 13-14页

作者： Ming-hua zeng Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical SciencesGuangxi Normal University Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional MoleculesHubei University

Glass appears to be an ordinary material with wide applications in daily life and industry; however, its formation mechanism, phase transition and microscopic structure remain mysterious. It is accepted to be an amorphous solid exhibiting glass transition, with short-range(20?A)disorder structures [1]. Experimental determination of the structure of glass is crucial to understand its dynamic and physical properties.‘What is the nature of glass?’ is one of the most fundamental and challenging scientific questions [1].

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Identifying the Key Reference of a Scientific Publication

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Journal of Systems Science and Systems Engineering 2020年第4期29卷 429-439页

作者： Haochuan cui An zeng Ying Fan zengru Di School of Systems Science Beijing Normal UniversityBeijing 100875P.R.China School of systems science Beijing Normal UniversityBeijing 100875P.R.China

The most fundamental way to measure the impact of a scientific publication is using the number of citations it *** citation count and its variants are widely adopted,they have been pointed out to be poor proxies for a paper's quality because a citation might result from different *** is thus crucial to quantify the true relevance of the cited papers to the citing *** are already some eforts in the literature devoted to addressing this isue,yet a well-accepted method is still lacking,possibly due to the absence of standard ground truth data for comparing different *** this paper,we propose a simple method using a local diffusion process on citation networks for identifying the key references for each scientific *** effectiveness and of the method are validated in a subset of the American Physical Society data in which the key references are mentioned in the abstract of *** further define an effective citation metric for quantifying the actual impact of each paper and its *** effective citation metric additionally reveals the citation preference of research at journal and country levels.

关键词： Network diffusion paper abstract citation network effective citations