检索结果-南通市图书馆

Towards advanced zinc anodes by interfacial modification strategies for efficient aqueous zinc metal batteries

Journal of Energy Chemistry 2024年第6期93卷 79-110,I0003页

作者： changchun Fan Weijia Meng Jiaye Ye Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology Ministry of EducationSchool of ChemistryBeihang UniversityBeijing 100191China Shaanxi Key Laboratory of New Transportation Energy and Automotive Energy Saving School of Energy and Electrical EngineeringChang’an UniversityXi’an 710061ShaanxiChina School of Chemistry and Physics Faculty of ScienceQueensland University of TechnologyBrisbaneQLD 4001Australia Centre for Materials Science Queensland University of TechnologyBrisbaneQLD 4001Australia

Developing sustainable and clean energy sources(e.g.,solar,wind,and tide energy)is essential to achieve the goal of carbon *** to the discontinuous and inco nsistent nature of common clean energy sources,high-performance energy storage technologies are a critical part of achieving this *** zinc metal batteries(AZMBs)with inherent safety,low cost,and competitive performance are regarded as one of the promising candidates for grid-scale energy ***,zinc metal anodes(ZMAs)with irreversible problems of dendrite growth,hydrogen evolution reaction,self-corrosio n,and other side reactions have seriously hindered the development and commercialization of *** increasing number of researchers are focusing on the stability of ZMAs,so assessing the effectiveness of existing research strategies is critical to the development of *** review aims to provide a comprehensive overview of the fundamentals and challenges of *** rch strategies for interfacial modification of ZMAs are systematically *** features of artificial interfacial coating and in-situ interfacial coating of ZMAs are compared and discussed in detail,as well as the effect of modified interfacial ZMA on the full-battery ***,perspectives are provided on the problems and challenges of *** review is expected to offer a constructive reference for the further development and commercialization of AZMBs.

关键词： Aqueous zinc metal batteries Zinc metal anode Interfacial modification Artificial interfacial coating In-situ interfacial coating

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Quantifying quantum entanglement via machine learning models

引用

Communications in Theoretical Physics 2024年第7期76卷 52-56页

作者： changchun Feng Lin Chen LMIB(Beihang University) Ministry of EducationBeijing 100191China School of Mathematical Sciences Beihang UniversityBeijing 100191China International Research Institute for Multidisciplinary Science Beihang UniversityBeijing 00191China

Quantifying entanglement measures for quantum states with unknown density matrices is a challenging *** learning offers a new perspective to address this *** training machine learning models using experimentally measurable data,we can predict the target entanglement *** this study,we compare various machine learning models and find that the linear regression and stack models perform better than *** investigate the model's impact on quantum states across different dimensions and find that higher-dimensional quantum states yield better ***,we investigate which measurable data has better predictive power for target entanglement *** correlation analysis and principal component analysis,we demonstrate that quantum moments exhibit a stronger correlation with coherent information among these data features.

关键词： quantum information entanglement predict machine learning coherence

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Finite-time composite learning control for nonlinear teleoperation systems under networked time-varying delays

引用

Science China(Information Sciences) 2024年第6期67卷 279-296页

作者： Yana YANG Huixin JIANG changchun HUA Junpeng LI Institute of Electrical Engineering Yanshan University

The robust finite-time synchronization control problem is investigated for master-slave networked nonlinear telerobotics systems(NNTSs) in this article. Although there have been some research achievements on finite-time control for the NNTSs, these studies are based on the strong assumptions of communication time delays or can only achieve finite-time bounded convergence even when the external forces are *** and in view of the importance of these issues, a novel robust composite learning adaptive control scheme rendering the finite-time master-slave synchronization is proposed in this paper. In particular, the influence of time delays on finite-time convergence of the system is analyzed by employing the multi-dimension finite-time small-gain framework. Meanwhile, in order to achieve accurate and fast estimation of uncertain parameters of the system, both the online historical and the instantaneous data of the estimation data are explored to derive the new parameter adaptive law under a more realizable interval-excitation(IE) ***, the convergence of the position/force synchronization errors and the adaptive parameter estimation errors is obtained in finite time, and enhanced robustness of the closed-loop system will also be ***, the superior performance of the proposed control algorithms is validated by numerical simulations and hardware experiments.

关键词： networked teleoperation systems finite-time control exact parameter estimation small-gain theorem unknown communication delays

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Characterizing structural variants based on graph-genotyping provides insights into pig domestication and local adaption

引用

Journal of Genetics and Genomics 2024年第4期51卷 394-406页

作者： Xin Li Quan Liu Chong Fu Mengxun Li changchun Li Xinyun Li Shuhong Zhao Zhuqing Zheng Key Lab of Agricultural Animal Genetics Breeding and Reproduction of Ministry of Education and Key Laboratory of Swine Genetics and Breeding of Ministry of AgricultureCollege of Animal Science and TechnologyHuazhong Agricultural UniversityWuhanHubei 430070China Institute of Agricultural Biotechnology Jingchu University of TechnologyJingmenHubei 448000China The Cooperative Innovation Center for Sustainable Pig Production WuhanHubei 430070China Hubei Hongshan Laboratory WuhanHubei 430070China

Structural variants(SVs),such as deletions(DELs)and insertions(INSs),contribute substantially to pig genetic diversity and phenotypic *** a library of SVs discovered from long-read primary assemblies and short-read sequenced genomes,we map pig genomic SVs with a graph-based method for re-genotyping SVs in 402 *** results demonstrate that those SVs harboring specific trait-associated genes may greatly shape pig domestication and local *** characterization of SVs reveals that some population-stratified SVs may alter the transcription of genes by affecting regulatory *** identify that the genotypes of two DELs(296-bp DEL,chr7:52,172,101e52,172,397;278-bp DEL,chr18:23,840,143 e23,840,421)located in muscle-specific enhancers are associated with the expression of target genes related to meat quality(FSD2)and muscle fiber hypertrophy(LMOD2 and WASL)in *** results highlight the role of SVs in domestic porcine evolution,and the identified candidate functional genes and SVs are valuable resources for future genomic research and breeding programs in pigs.

关键词： Pigs Structural variation Selection signatures Regulatory elements

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Study on green power supply modes for heavy load in Remote Areas

引用

Global Energy Interconnection 2024年第4期7卷 475-485页

作者： Yu Li Yixi Cuomu Yiming Gao Guoqin Lv Weiwei Lin Sirui Li changchun Zhou State Grid Xizang Electric Power Co. Ltd.Lhasa 850010Tibet Autonomous RegionP.R.China Global Energy Interconnection Development and Cooperation Organization Beijing 100031P.R.China State Grid Fujian Power Economic Research Institute Fuzhou 350012P.R.China Eindhoven University of Technology Eindhoven.5621 AENetherlands

In this study,the present situation and characteristics of power supply in remote areas are *** studying the cases of power supply projects in remote areas,the experience is analyzed and described,and the applicability of related technologies,such as grid-forming storage and power load management,is studied,including grid-connection technologies,such as grid-forming converters and power load *** this basis,three power-supply modes were *** application scenarios and advantages of the three modes were compared and *** on the local development situation,the temporal sequences of the three schemes are described,and a case study was *** study of the heavy-load power supply mode in remote areas contributes to solving the problem of heavy-load green power consumption in remote areas and promoting the further development of renewable energy.

关键词： Remote area Renewable energy Grid-forming storage Power load management Power supply mode

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Portable fluorescence instrument for detecting membrane integrity in membrane bioreactor (MBR)

引用

Frontiers of Environmental Science & Engineering 2024年第2期18卷 121-131页

作者： Yang Yu changchun Xin Yuxiang Liu Fei Gao Lei Zhang Hui Jia Jie Wang State Key Laboratory of Separation Membranes and Membrane Processes Tiangong UniversityTianjin 300387China School of Environmental Science and Engineering Tiangong UniversityTianjin 300387China School of Environmental Science and Engineering Tianjin UniversityTianjin 300072China Shenyang Academy of Environmental Sciences Shenyang 110167China Cangzhou Institute of Tiangong University Tiangong UniversityCangzhou 061000China

This study proposed the design, fabrication, and assembly of membrane integrity detection instruments in membrane bioreactors (MBR) based on fluorescence spectroscopy. Based on the PARAFAC model, we found that the peak at 280/335 nm strengthened after membrane breakage. The peak at 340/430 nm reflected the sludge concentration in the MBR and reduced the influence of internal filtration effects on detection. Therefore, we determined that the dual-LED light source excitation detection system can detect tryptophan-like substances at 280 nm (T-peak) and humic acid at 340 nm (C-peak). T-peak was identified as the core index indicating membrane integrity. Moreover, the C-peak is the reference indicator factor for a sensitive response to changes in the sludge concentration. The portable fluorescence instrument exhibited high sensitivity and good feedback accuracy compared to particle counting and turbidity detection, where the log reduction value was greater than 3.5. This overcomes the disadvantage of false alarms in particle counters and is not affected by the position of the pump system. This portable instrument provides a flexible and highly sensitive method for the assessment of industrial membrane integrity.

关键词： Membrane integrity Fluorescence spectrum Portable instrument Membrane bioreactor

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Better World for All

引用

ChinAfrica 2024年第9期16卷 24-25页

作者： HU changchun Mission of China to the African Union

China, Africa join hands to build a high-quality community with a shared *** a community with a shared future for mankind is the lofty goal of major-country diplomacy with Chinese characteristics in the new era,and th... 详细信息

关键词： mankind Africa hands

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Synthesis of mordenite by solvent-free method and its application in the dimethyl ether carbonylation reaction

引用

Chinese Journal of Chemical Engineering 2024年第2期66卷 216-223页

作者： Yinghui Liu Shaoduo Liu Xiaosheng Wang Hongjing Wang Ranjia Li changchun Yu Chunming Xu Yuxiang Liu Zhengqiu Xie Yongqiang Wang Pan Tang State Key Laboratory of Heavy Oil Processing College of New Energy and MaterialsChina University of Petroleum-BeijingBeijing 102249China Synfuels China Technology Co. LtdBeijing 101400China College of Chemical Engineering Qingdao University of Science&TechnologyQingdao 266042China Yueyang Jucheng Chemical Co. LtdYueyang 414009China

Mordenite with different Si/Al ratios were synthesized by solvent-free method and used for dimethyl ether(DME)carbonylation *** influence of Si/Al ratio in the feedstock on the structure,porosity and acid sites were systematically *** characterization results showed that with the increase of Si/Al ratio in the feedstock,part of silicon species fail to enter the skeleton and the specific surface area and pore volume of the samples *** amount of weak acid and medium strong acid decreased alongside with the increasing Si/Al ratio,and the amount of strong acid slightly *** Al atoms preferentially enter the strong acid sites in the 8 member ring(MR)channel during the crystallization *** high Si/Al ratio sample had more acid sites located in the 8 MR channel,leading to more active sites for carbonylation reaction and higher catalytic *** increasing the Si/Al ratio was beneficial for the improvement of carbonylation reaction activity over the mordenite(MOR)catalyst.

关键词： Carbonylation Dimethyl ether Solvent-free Zeolite Synthesis Catalysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

双重衔接:国家治理与社会科学研究

引用

学术前沿 2024年第14期 92-99页

作者：方长春南京大学社会学院

国家治理离不开对经验事实的分析与研判。自党的十八届三中全会以来,推进国家治理体系和治理能力现代化不仅在政策实践层面受到高度重视,也得到了社会科学研究的广泛关注。当前,我国在治理实践和社会科学研究中存在着双重衔接不足:一是... 详细信息

国家治理离不开对经验事实的分析与研判。自党的十八届三中全会以来,推进国家治理体系和治理能力现代化不仅在政策实践层面受到高度重视,也得到了社会科学研究的广泛关注。当前,我国在治理实践和社会科学研究中存在着双重衔接不足:一是治理实践与经验性社会科学研究的衔接不足,二是社会科学中的“应然”研究与“实然”研究的衔接不足。强化“双重衔接”,一是要强化国家治理的经验事实之基,二是要强化对当代中国经济社会运行中社会事实“是什么”、“为什么”和“将会怎样”的科学研究,并将对策研究和治理实践建基于这些科学研究的基础之上。

关键词：国家治理社会科学研究双重衔接

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

水资源税改革:基于河北省经验、成效的调研与思考

引用

税务研究 2024年第5期 88-93页

作者：李长春国家税务总局河北省税务局

我国水资源较为紧张,实施水资源税改革对于优化用水结构、恢复生态环境、缓解水资源严峻形势具有重要意义。2016年7月1日,河北在全国率先实行水资源税改革试点。通过调研河北水资源税改革试点以来的经验做法发现,河北省水资源税改革试... 详细信息

我国水资源较为紧张,实施水资源税改革对于优化用水结构、恢复生态环境、缓解水资源严峻形势具有重要意义。2016年7月1日,河北在全国率先实行水资源税改革试点。通过调研河北水资源税改革试点以来的经验做法发现,河北省水资源税改革试点取得了用水效率显著提升、地下水超采有效遏制、用水结构持续优化、水资源税收入明显增长等方面的成效。但是,水资源禀赋差异较大、税制设计有待优化、农村征缴极具难度、财政支出难以支撑是制约水资源税全面推广的重要因素。为进一步发挥好水资源税制度的作用,可从全面调研总结、分析评估精深化,合理统筹设计、税制体系科学化,紧密结合实际、税收政策灵活化,积极推进立法、各项规定标准化等四个方面进行完善,助力水资源税全面推广。

关键词：水资源税税收制度税制改革税收政策

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：