检索结果-南通市图书馆

Constructing Donor–Acceptor‑Linked COFs Electrolytes to Regulate Electron Density and Accelerate the Li^(+)Migration in Quasi‑Solid‑State Battery

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第1期17卷 456-471页

作者： Genfu Zhao Hang ma Conghui Zhang Yongxin yang Shuyuan Yu Haiye Zhu Yongjiang Sun Hong Guo School of materials and Energy International Joint Research Center for Advanced Energy Materials of Yunnan ProvinceYunnan UniversityKunming 650091People’s Republic of China Yunnan Yuntianhua Co. LtdR&D CenterKunming 650228People’s Republic of China Southwest United Graduate School Kunming 650091People’s Republic of China

Regulation the electronic density of solid-state electrolyte by donor–acceptor(D–A)system can achieve highly-selective Li^(+)transportation and conduction in solid-state Li metal *** study reports a high-performance solid-state electrolyte thorough D–A-linked covalent organic frameworks(COFs)based on intramolecular charge transfer *** other reported COFbased solid-state electrolyte,the developed concept with D–A-linked COFs not only achieves electronic modulation to promote highly-selective Li^(+)migration and inhibit Li dendrite,but also offers a crucial opportunity to understand the role of electronic density in solid-state Li metal *** introduced strong electronegativity F-based ligand in COF electrolyte results in highlyselective Li^(+)(transference number 0.83),high ionic conductivity(6.7×10^(-4)S cm^(−1)),excellent cyclic ability(1000 h)in Li metal symmetric cell and high-capacity retention in Li/LiFePO_(4)cell(90.8%for 300 cycles at 5C)than substituted C-and N-based *** is ascribed to outstanding D–A interaction between donor porphyrin and acceptor F atoms,which effectively expedites electron transferring from porphyrin to F-based ligand and enhances Li^(+)***,we anticipate that this work creates insight into the strategy for accelerating Li^(+)conduction in high-performance solid-state Li metal batteries through D–A system.

关键词： Electronic modulation engineering Donor-acceptor-linked covalent organic frameworks Quasi-solid-state Li metal battery

Research status and prospects of the fractal analysis of metal material surfaces and interfaces

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and materials 2025年第1期32卷 20-38页

作者： Qinjin Dai Xuefeng Liu Xin ma Shaojie Tian Qinghe Cui Beijing Advanced Innovation Center for materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing Laboratory of Metallic materials and Processing for Modern Transportation University of Science and Technology BeijingBeijing 100083China Laboratory for Advanced materials Processing of Ministry of Education University of Science and Technology BeijingBeijing 100083China School of Mechanical and Electrical Engineering Xinjiang Institute of EngineeringUrumqi 830023China

As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine *** analysis has been used to characterize the shapes of metal materials at various scales and *** methods make it difficult to quantitatively describe the relationship between the regular characteristics and properties of metal material surfaces and ***,fractal analysis can be used to quantitatively describe the shape characteristics of metal materials and to establish the quantitative relationships between the shape characteristics and various properties of metal *** the perspective of two-dimensional planes and three-dimensional curved surfaces,this paper reviews the current research status of the fractal analysis of metal precipitate interfaces,metal grain boundary interfaces,metal-deposited film surfaces,metal fracture surfaces,metal machined surfaces,and metal wear *** relationship between the fractal dimensions and properties of metal material surfaces and interfaces is *** from three perspectives of fractal analysis,namely,research scope,image acquisition methods,and calculation methods,this paper identifies the direction of research on fractal analysis of metal material surfaces and interfaces that need to be *** is believed that revealing the deep influence mechanism between the fractal dimensions and properties of metal material surfaces and interfaces will be the key research direction of the fractal analysis of metal materials in the future.

关键词： metal material surfaces and interfaces fractal analysis fractal dimension homogeneity

A Wind Tunnel Experimental Study on the Wake Characteristics of a Horizontal Axis Wind Turbine

在线全文

学校读者我要写书评

暂无评论

Journal of Thermal Science 2025年第1期34卷 145-158页

作者： GUO Xingduo LI Yinran LI Rennian ma Yulong WEI Kui College of Energy and Power Engineering Lanzhou University of TechnologyLanzhou 730050China Key Laboratory of Fluid machinery and Systems Lanzhou 730050China Gansu Provincial Technology Centre for Wind Turbines Lanzhou 730050China

The characteristics of wind turbine wakes are influenced by multiple factors,including the atmospheric boundary layer(ABL)wind and wind turbine operating conditions(e.g.,tip speed ratio and yaw angle).In this study,two types of ABL winds with different velocity gradients and turbulence intensities are generated in a wind tunnel through configurations of spires,baffles,and various numbers of roughness elements.A wind turbine with a rotor diameter of 0.8 m and a hub height of 0.6 m is tested under varying tip speed ratios,yaw angles,and ABL wind *** results indicate that the streamwise velocity deficit in the near-wake region becomes more pronounced with an increase in the tip speed ratio,while the far-wake velocity deficit remains largely unaffected by changes in the tip speed *** the yaw angle increases,the wake deflection becomes more prominent and the wake narrows;the offset of the wake center at various downstream positions grows linearly,reaching a maximum value of approximately half the rotor ***,the turbulence level and influence range in the wake region are reduced when the turbine is *** ABL wind conditions,high turbulence intensity in the incoming flow accelerates wake recovery,and the Reynolds stress at different lateral positions tends to become consistent with increasing longitudinal ***,turbulence has a significant impact on the meandering characteristics of the wind turbine wake,with greater fluctuations in the wake center observed under higher turbulence ***,this study provides insights that could inform the optimal operation of wind farms.

关键词： horizontal axis wind turbine wind tunnel experiment wind turbine wake turbulence

Metamorphic P-T-t Evolution of Granulite in the Yishui Area:New Insights into the Tectonic Evolution of the Eastern Block,North China Craton

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2025年第1期99卷 69-82页

作者： CHEN Ziyuan YUAN Mingkao zhong Zhenyu LI Tianqi WANG Guodong XIAO Lingling School of Civil and Resource Engineering University of Science and Technology BeijingBeijing 100083China Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection/School of Resources and Environment Linyi UniversityLinyiShandong 276000China Shandong Institute of Geophysical and Geochemical Exploration Jinan 250013China Institute of Digital Geology and Energy Linyi UniversityLinyiShandong 276000China

The Yishui complex,located in the western Shandong area of the North China Craton,is representative of the Archean crystalline basement of the North China Craton to explore the early tectonic-thermal evolution history of the *** petrography,mineral chemistry,metamorphic evolution and zircon U-Pb dating are presented for felsic granulite and two-pyroxene granulite from the Yishui complex to contribute to new insights into the Neoarchean tectonic evolution of the North China *** mineral assemblages are recognized for these granulite samples,including the prograde(M1),peak(M2)and retrograde(M3)mineral *** geothermobarometry and phase equilibrium modeling yield P-T conditions of 6.5-10.9 kbar/718-839℃ for the peak metamorphism,which define a medium-pressure granulite-facies metamorphism occurred at middle to lower *** P-T paths with near-isobaric cooling(IBC)retrograde segments were *** LA-ICP-MS U-Pb dating suggests that the protolith of the felsic granulite was emplaced at 2541±7 ma and the subsequent medium-pressure granulite-facies metamorphism occurred at 2518-2494 ma.A two-stage mantle plume related crustal-scale sagduction geodynamic regime is proposed in the western Shandong terrane in the Neoarchean.

关键词： metamorphic evolution geochronology granulite Yishui complex North China Craton

Research landmarks on the 60th anniversary of Epstein-Barr virus

在线全文

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2025年第2期68卷 354-380页

作者： Lan-Yi zhong Chu Xie Le-Le Zhang Yan-Lin yang Yuan-Tao Liu Ge-Xin Zhao Guo-Long Bu Xian-Shu Tian Zi-Ying Jiang Bo-Yu Yuan Peng-Lin Li Pei-Huang Wu Wei-Hua Jia Christian Münz Benjamin E.Gewurz Qian zhong Cong Sun Mu-Sheng Zeng State Key Laboratory of Oncology in South China Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and TherapyGuangdong Provincial Clinical Research Center for CancerSun Yat-sen University Cancer CenterGuangzhou 510060China Viral Immunobiology Institute of Experimental ImmunologyUniversity of ZürichZürich 8092Switzerland Division of Infectious Diseases Department of MedicineBrigham and Women’s HospitalBoston MA 02115USA Department of Microbiology Harvard Medical SchoolBoston MA 02115USA Harvard Program in Virology Boston MA 02115USA Broad Institute of Harvard and MIT Cambridge MA 02142USA

Epstein-Barr virus(EBV),the first human oncovirus discovered in 1964,has become a focal point in virology,immunology,and oncology because of its unique biological characteristics and significant role in human *** we commemorate the 60th anniversary of EBV's discovery,it is an opportune moment to reflect on the major advancements in our understanding of this complex *** this review,we highlight key milestones in EBV research,including its virion structure and life cycle,interactions with the host immune system,association with EBV-associated diseases,and targeted intervention strategies.

关键词： Epstein-Barr virus oncovirus immune response epidemiology vaccines antibodies

Multi-layer controlled remote implementation of partially unknown single-qudit operations

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2025年第2期77卷 54-65页

作者： Siyi Li Songya ma Si Jin School of mathematics and Statistics Henan University Institute of mathematics Henan Academy of Sciences

Our concern is to investigate controlled remote implementation of partially unknown operations with multiple layers. We first propose a scheme to realize the remote implementation of singlequbit operations belonging to the restricted sets. Then, the proposed scheme is extended to the case of single-qudit operations. As long as the controller and the higher-layer senders consent,the receiver can restore the desired state remotely operated by the sender. It is worth mentioning that the recovery operation is deduced by general formulas which clearly reveal the relationship with the measurement outcomes. For the sake of clarity, two specific examples with two levels are given respectively. In addition, we discuss the influence of amplitude-damping noise and utilize weak measurement and measurement reversal to effectively resist noise.

关键词： controlled remote implementation of quantum operation multiple layers recovery operation amplitude-damping noise weak measurement and measurement reversal

Effects of Lignite Humic Acid and Lignite Humic Acid-based Combined Amendment on Soil Quality in Saline-sodic Farmlands in the West Liaohe Plain, China

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Geographical Science 2025年第2期 401-414页

作者： NIE Zhaoyang ZHANG Lu ZHANG Tieyi GUO Liangliang ZHOU Jie AN Fenghua ma Hongyuan WANG Zhichun yang Fan Northeast Institute of Geography and Agroecology Chinese Academy of Sciences University of Chinese Academy of Sciences Jilin Agricultural University

Water scarcity and soil salinization pose significant challenges to agriculture in the West Liaohe Plain, eastern Inner Mongolia, China. Shallow-buried drip irrigation can improve soil water use efficiency to alleviate water shortage in agriculture and the application of lignite humic acid reduces the adverse effects of soil salinization. However, further research is needed to investigate the effects of different application rates of lignite humic acid and humic acid-based combined amendment on soil physicochemical properties, nutrient contents, and crop yield in saline-sodic farmlands under shallow-buried drip irrigation. A two-year field experiment was conducted with control without any amendment(CK), three treatments amended with 3 t/ha(H1), 6 t/ha(H2), and 12 t/ha(H3) lignite humic acid,and three application rates with 15 t/ha(T1), 22.5 t/ha(T2), and 30 t/ha(T3) lignite humic acid-based combined amendment in 2021 and2022. The results showed that H3 reduced soil bulk density, p H, electrical conductivity, and total alkalinity, while increasing the contents of soil organic matter, total nitrogen, and available potassium in the two-year experiment. Moreover, the maize yield in H3 increased by an average of 35.5%. T2 decreased soil bulk density, p H, total alkalinity, and increased maize yield by 16.2%, compared to the first year. These results suggest that T2 consistently improved both soil quality and crop yield. Correlation analyses showed that lignite humic acid and its complexes promote maize growth and increase yield by increasing soil organic matter and total nitrogen while reducing soil salinity and total alkalinity. Based on the comprehensive analysis of the field data and the results of the comprehensive evaluation of soil quality, it was determined that the appropriate improvement measures for saline-sodic farmlands under shallow-buried drip irrigation are the application of 12 t/ha of lignite humic acid and 22.5 t/ha of lignite humic acid-based combined

关键词：

同方期刊数据库

Selenate-based heterojunction with cobalt-nickel paired site for electrocatalytic oxidation of 5-hydroxymethylfurfural coupling water splitting to produce hydrogen

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第2期101卷 156-162页

作者： Zhengru yang Jia Hui Wangxi Fan Pengcheng Liu Chunyong Zhang Shuang Dong Zhou yang Department of Chemistry and Chemical Engineering & Jiangsu Key Laboratory of Clean Energy Storage and Conversion Jiangsu University of Technology Engineering Technology and materials Research Center China Academy of Transportation Sciences School of Chemical Engineering and materials Changzhou Institute of Technology

It is very appealing that 5-hydroxymethylfurfural（HMF） is electrocatalytical oxidized as 2,5-furandicarboxylic acid（FDCA） linking to non-classical cathodic hydrogen（H2） ***,the electrocatalysts for electrocatalytic HMF oxidative reaction（e-HMFOR） have been facing low Faradaic efficiency（FE） and high water splitting ***,we propose a strategy of the NiSeO3@（CoSeO3）4heterojunction by constructing a Co-Ni paired site,where the Co site is in charge of adsorbing for HMF while the electrons are transferred to the Ni site,thus giving the NiSeO3@（CoSeO3）4heterojunction superior electrocata lytic performances for e-HMFOR and water *** optimizing conditions,the NiSeO3@（CoSeO3）4heterojunction has high conversion of 99.7%,high selectivity of 99.9%,and high FE of 98.4% at 1.3 V,as well as low cell voltage of 1.31 V at 10 ma cm-2in 1 M KOH+0.1 M *** study offers a potential insight for e-HMFOR to high value-added FDCA coupling water splitting to produce H2in an economical manner.

关键词： Co-Ni paired site e-HMFOR FDCA Heterojunction Hydrogen evolution

A fast amplitude preserving three-parameter 3D parabolic Radon transform and its application on multiple attenuation

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Petroleum Science 2025年第1期22卷 163-177页

作者： Ji-Tao ma Kai-Ge Zhao Zhen Liao College of Geophysics China University of Petroleum (Beijing) State Key Laboratory of Petroleum Resources and Engineering China University of Petroleum (Beijing) CNPC Key Laboratory of Geophysical Prospecting China University of Petroleum (Beijing)

Seismic wavefields propagate through three-dimensional(3D) space, and their precise characterization is crucial for understanding subsurface structures. Traditional 2D algorithms, due to their limitations, are insufficient to fully represent three-dimensional wavefields. The classic 3D Radon transform algorithm assumes that the wavefield's propagation characteristics are consistent in all directions, which often does not hold true in complex underground media. To address this issue, we present an improved 3D threeparameter Radon algorithm that considers the wavefield variation with azimuth and provides a more accurate wavefield description. However, introducing new parameters to describe the azimuthal variation also poses computational challenges. The new Radon transform operator involves five variables and cannot be simply decomposed into small matrices for efficient computation; instead, it requires large matrix multiplication and inversion operations, significantly increasing the computational load. To overcome this challenge, we have integrated the curvature and frequency parameters, simplifying all frequency operators to the same, thereby significantly improving computation efficiency. Furthermore,existing transform algorithms neglect the lateral variation of seismic amplitudes, leading to discrepancies between the estimated multiples and those in the data. To enhance the amplitude preservation of the algorithm, we employ orthogonal polynomial fitting to capture the amplitude spatial variation in 3D seismic data. Combining these improvements, we propose a fast, amplitude-preserving, 3D threeparameter Radon transform algorithm. This algorithm not only enhances computational efficiency while maintaining the original wavefield characteristics, but also improves the representation of seismic data by increasing amplitude fidelity. We validated the algorithm in multiple attenuation using both synthetic and real seismic data. The results demonstrate that the new algor

关键词： Three-parameter 3D Radon Orthogonal polynomial Amplitude-preserving Multiple attenuation