检索结果-南通市图书馆

Accurate quantification of the algebraic,multiplicative algebraic,and simultaneous iterative reconstruction techniques in ionosphere rebuilding based on the TIEGCM assessment

引用

Earth and Planetary Physics 2025年第1期9卷 117-126页

作者： Ao Qi haiBing ruan Institute of Space Weather Nanjing University of Information Science and TechnologyNanjing 210044China Key Laboratory of Geospace Environment University of Science&Technology of ChinaChinese Academy of SciencesHefei 230026China

The algebraic reconstruction technique(ART),multiplicative algebraic reconstruction technique(MART),and simultaneous iterative reconstruction technique(SIRT)are computational methodologies extensively utilized within the field of computerized ionospheric tomography(CIT)to facilitate three-dimensional reconstruction of the ionospheric ***,reconstruction accuracy elicits recurrent disputes over its practical application,and people usually attribute this issue to incomplete and uneven coverage of the *** Thermosphere Ionosphere Electrodynamics General Circulation Model(TIEGCM)offers a reasonable physics-based ionospheric background and is widely utilized in ionospheric *** use the TIEGCM simulations as the targeted ionosphere because the current measurements are far from able to realistically reproduce the ionosphere in *** designations of satellite measurements are conducted to investigate the limiting performance of CIT methods in ionospheric *** to common practice,electron density distributions from outputs of the International Reference Ionosphere(IRI)model are used as the iterative initial value in CIT *** outcomes suggest that despite data coverage,iterative initial conditions also play an essential role in ionospheric *** particular,in the longitudinal sectors where the iterative initial height of the F2-layer peak electron density(hmF2)differs substantially from the background densities,none of the three CIT methods can reproduce the exact background *** hmF2 is close but the ionospheric F2-layer peak density(NmF2)is different between the targeted background and initial conditions,the MART performs better than the ART and SIRT,as evidenced by the correlation coefficients of MART being above 0.97 and those of ART and SIRT being below *** summary,this investigation reveals the potential uncertainties in traditional CIT reconstruction,particularly when reali

关键词： computerized ionospheric tomography International Reference Ionosphere model Thermosphere Ionosphere Electrodynamics General Circulation model ionosphere

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

Porous Organic Cage‑Based Quasi‑Solid‑State Electrolyte with Cavity‑Induced Anion‑Trapping Effect for Long‑Life Lithium Metal Batteries

引用

Nano-Micro Letters 2025年第2期17卷 376-386页

作者： Wei-Min Qin Zh.ngliang Li Wen‑Xia Su Jia‑Min hu hanqin Zou Zhixuan Wu Zhiqin ruan Yue‑Peng Cai Kang Li Qifeng Zh.ng School of Chemistry South China Normal UniversityGuangzhou 510006People’s Republic of China Key Laboratory of Functional Metal‑Organic Compounds of hunan Province College of Chemistry and Material ScienceHengyang Normal UniversityHengyang 421008People’s Republic of China Guangzhou Key Laboratory of Energy Conversion and Energy Storage Materials Guangzhou 510006People’s Republic of China

Porous organic cages(POCs)with permanent porosity and excellent host–guest property hold great potentials in regulating ion transport behavior,yet their feasibility as solid-state electrolytes has never been testified in a practical ***,we design and fabricate a quasi-solid-state electrolyte(QSSE)based on a POC to enable the stable operation of Li-metal batteries(LMBs).Benefiting from the ordered channels and cavity-induced anion-trapping effect of POC,the resulting POC-based QSSE exhibits a high Li+transference number of 0.67 and a high ionic conductivity of 1.25×10^(−4) S cm^(−1) with a low activation energy of 0.17 *** allow for homogeneous Li deposition and highly reversible Li plating/stripping for over 2000 *** a proof of concept,the LMB assembled with POC-based QSSE demonstrates extremely stable cycling performance with 85%capacity retention after 1000 ***,our work demonstrates the practical applicability of POC as SSEs for LMBs and could be extended to other energy-storage systems,such as Na and K batteries.

关键词： Porous organic cage Cavity-induced anion-trapping Quasi-solid-state electrolyte homogeneous Li+flux Lithium metal battery

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

职业教育发展对实体经济的影响研究

引用

黑龙江高教研究 2025年第1期43卷 147-154页

作者：刘聪阮晓文曹辉南京工业职业技术大学江苏南京210023 江苏大学江苏镇江212013

基于2005一2021年的省际面板数据,采用双向固定效应模型,实证分析了职业教育发展对实体经济的影响效应和作用机制。研究发现,职业教育发展会显著促进实体经济增长,且该结论在替换变量和工具变量估计的稳健性检验下依然成立;异质性分析表... 详细信息

基于2005一2021年的省际面板数据,采用双向固定效应模型,实证分析了职业教育发展对实体经济的影响效应和作用机制。研究发现,职业教育发展会显著促进实体经济增长,且该结论在替换变量和工具变量估计的稳健性检验下依然成立;异质性分析表明,职业教育发展对经济发展程度和教育发展水平欠发达地区的实体经济促进效应更大;机制验证表明,职业教育发展会通过培育匠心劳动者、提高新质生产力和繁荣创业活跃度促进实体经济增长。未来,为更好建设以实体经济为支撑的现代化产业体系,应加快推进中国式职业教育现代化建设,并注重发展策略的精准性。

关键词：职业教育实体经济新质生产力

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

Advances and applications in single-cell and spatial genomics

引用

Science China Life Sciences 2025年

作者： Jingjing Wang Fang Ye haoxi Chai Yujia Jiang Teng Wang Xia Ran Qimin Xia Ziye Xu Yuting Fu Guodong Zh.ng hanyu Wu Guoji Guo h.ngsh.n Guo Yijun ruan Yongch.ng Wang Dong Xing Xun Xu Zemin Zh.ng Beijing Advanced Innovation Center for Genomics (ICG) Peking University Guangdong Provincial Key Laboratory of Genome Read and Write BGI Research Bone Marrow Transplantation Center of the First Affiliated hospital & Liangzhu Laboratory Zhejiang University School of Medicine Life Sciences Institute and The Second Affiliated hospital Zhejiang University BGI Research Biomedical Pioneering Innovation Center (BIOPIC) and School of Life Sciences Peking University Academy for Advanced Interdisciplinary Studies Peking University Institute of hematology Zhejiang University Department of Laboratory Medicine of The First Affiliated hospital & Liangzhu Laboratory Zhejiang University School of Medicine Center for Stem Cell and Regenerative Medicine Zhejiang University School of Medicine Zhejiang Provincial Key Lab for Tissue Engineering and Regenerative Medicine Dr.Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine

The applications of single-cell and spatial technologies in recent times have revolutionized the present understanding of cellular states and the cellular heterogeneity inherent in complex biological systems. These advancements offer unprecedented resolution in the examination of the functional genomics of individual cells and their spatial context within tissues. In this review, we have comprehensively discussed the historical development and recent progress in the field of single-cell and spatial genomics. We have reviewed the breakthroughs in single-cell multi-omics technologies, spatial genomics methods, and the computational strategies employed toward the analyses of singlecell atlas data. Furthermore, we have highlighted the advances made in constructing cellular atlases and their clinical applications,particularly in the context of disease. Finally, we have discussed the emerging trends, challenges, and opportunities in this rapidly evolving field.

关键词：

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

股权合作视角下“乡村振兴基金+合作社”共建数字农业的运营决策研究

引用

管理工程学报 2025年第1期39卷 285-301页

作者：樊文平王旭坪孙自来阮俊虎大连理工大学经济管理学院西北农林科技大学经济管理学院

在由地方政府和单个农民合作社组成的供应链中,本文引入政策倡导的财政支农资金市场化运作方式和股权合作模式,尝试探讨数字化技术应用于现代农业的运营决策问题。本文首先基于财政支农资金投入方式(无偿投入和有偿投资)的不同将地方政... 详细信息

在由地方政府和单个农民合作社组成的供应链中,本文引入政策倡导的财政支农资金市场化运作方式和股权合作模式,尝试探讨数字化技术应用于现代农业的运营决策问题。本文首先基于财政支农资金投入方式(无偿投入和有偿投资)的不同将地方政府划分为公益型政府和效益型政府,接着分别构建了两种类型政府投资数字化技术且农民合作社对该投资持股与否的博弈模型,最后分析了股权合作模式在数字农业投资运营中的实施动机及影响。研究表明:(1)数字农业技术可有效改善农产品品质;(2)股权合作模式仅在农民合作社和财政资金市场化运作的效益型政府之间存在实施动机;(3)实施股权合作模式后,农产品品质提升、市场需求量和政府利润均增加,但农民合作社利润受损;(4)在政府对农产品质量规范的基础上,激励相容协调机制可兼顾乡村振兴基金的收益性和政府的公益性,有效提升政农双方投资积极性。本文将政策研究同对策研究紧密结合,为政府制定相关政策推动数字农业发展提供理论依据。

关键词：政策研究与对策研究数字农业技术财政支农资金市场化运作股权合作模式

来源：

维普期刊数据库

同方期刊数据库

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

Some discussions about the variable separating method for solving nonlinear models

引用

Chinese Physics B 2010年第5期19卷 21-28页

作者： ruan h.ng-Yu Department of Physics Ningbo University

Through analysing the exact solution of some nonlinear models,the role of the variable separating method in solving nonlinear equations is *** find that rich solution structures of some special fields of these equation come from the nonzero seed ***,these nonzero seed solutions is likely to result in the divergent phenomen for the other field component of the same *** convergence and the signification of all field components sh.uld be discussed when someone solves the nonlinear equation using the variable separating method.

关键词： variable separating method nonzero seed solution nonlinear equation

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

职业教育教师教学创新团队建设现状与路径研究

引用

科教文汇 2025年第1期 138-141页

作者：阮树堂江西环境工程职业学院江西赣州341000

打造职业教育教师教学创新团队是构建现代职业教育体系的重要举措,也是推动职业教育“三教”改革和“双师型”教师队伍建设的有力抓手。在国家第一轮“双高计划”建设收官之际,正确地认识、梳理和研究职业教育教师教学创新团队建设的现... 详细信息

打造职业教育教师教学创新团队是构建现代职业教育体系的重要举措,也是推动职业教育“三教”改革和“双师型”教师队伍建设的有力抓手。在国家第一轮“双高计划”建设收官之际,正确地认识、梳理和研究职业教育教师教学创新团队建设的现状,对国家下一轮“双高计划”建设和职业院校的高质量发展均具有重要意义。经过近五年的建设,职业教育教师教学创新团队建设虽然取得了较大进步,但仍然存在建设方案和顶层设计不完善、师资命运共同体缺失、团队的结构化与耦合力不足等一系列问题。基于此,该文提出从教师职业能力、教育教学理念、教学改革能力、团队协作模式四个方面切入,着力打造新时代职业教育教师教学创新团队,推动教师成长,赋能职业教育高质量发展。

关键词：职业教育教师教学创新团队

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

Extracellular vesicles drive tau spreading in Alzheimer's disease

引用

Neural Regeneration Research 2022年第2期17卷 328-329页

作者： Zhi ruan Department of Pharmacology and Experimental Therapeutics Boston University School of MedicineBostonMAUSA

Alzheimer's disease(AD) is a progressive and irreversible neurodegenerative disorder that is characterized by memory loss and a decline in activities of daily life. More than 50 million people worldwide are affected by AD, and this number will continue to rise over 100 million within next three decades. Its major pathological features are the extracellular plaque deposits of the β-amyloid peptide and the intracellular flame-sh.ped neurofibrillary tangle-aggregation of hyperphosphorylated tau-proteins(pTau).

关键词： tau Alzheimer amyloid

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

N = 4 Supersymmetric Morse Oscillator and Its Spectrum-Generating Algebra

引用

Communications in Theoretical Physics 2005年第3X期44卷 499-504页

作者： ruan Dong Department of Physics Tsinghua University Beijing 100084 China Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion Accelerator Lanzhou 730000 China Key Laboratory of Quantum Information and Measurements of Ministry of Education Tsinghua University Beijing 100084 China Institute of Theoretical Physics Academia Sinica Beijing 100080 China

In this paper N = 4 supersymmetry of generalized Morse oscillators in one dimension is studied. Both bound states and scattering states of its four superpartner hamiltonians are analyzed by using unitary irreducible representations of the noncompact Lie algebra su(1,1). The spectrum-generating algebra governing the hamiltonian of the N = 4 supersymmetric Morse oscillator is sh.wn to be connected with the realization of Lie superalgebra osp(1,2)or B(0,1) in terms of the variables of a supersymmetric two-dimensional harmonic oscillator.

关键词： generalized Morse oscillator supersymmetric quantum mechanics su(1 1) osp(1 2)

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

Probing New Physics at future electron positron higgs factories via e^+e^-→ Zγ process

引用

Science China(Physics,Mechanics & Astronomy) 2021年第2期64卷 29-30页

作者： ManQi ruan Institute of high Energy Physics Chinese Academy of SciencesBeijing100049China

Direct searches and precision measurements are the two main complementary methods for identifying New Physics at *** next generation of e^+e^-higgs factories,including CEPC,FCC-ee,ILC and CLIC,is designed to deliver m... 详细信息

关键词： processes. higgs positron

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：