检索结果-南通市图书馆

Tungsten 2025年第1期7卷 32-49页

作者： Li-Rong Xiao Chen Chen Shuo Wang Zi-Yin Dai Hideo Kimura Cui Ni Chuan-Xin Hou Xue-Qin Sun Si-Jie Guo Wei du Xiu-Bo Xie School of Environmental and Material Engineering Yantai University Bosch HUAYU Steering Systems (Yantai) Co. Ltd.Ytp/MFE University of Tennessee Knoxville Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta Shandong University of Aeronautics

MgH2is considered as a promising hydrogen storage material for its high hydrogen storage capacity,low cost and abundant resource ***,the low kinetics and high enthalpy formation of MgH2limit its wide *** the perspective of adding catalysts to enhance the hydrogen storage properties of Mg-MgH2,this article elaborated the main catalysts based on Ti and Nb transition elements,including single oxide catalysts,binary oxides catalysts（combined with Ni,Na,Sr,V,etc.）,multiple catalysts bound to carbon,and composite catalysts with Ti and Nb elements combined with MXene ***,the main pathways of various catalysts to reduce the reaction activity and broaden the hydrogen desorption channel were also *** Ti-based catalysts can enhance the reactive sites of the matrix by forming multivalent states,while Nb-based catalysts broaden the hydrogen reaction channels by forming tiny *** improving the size structure and enhancing the grain size stability,combined with carbon materials should be the future considerations.

关键词： Catalysts Mg-based hydrogen storage alloys Solid hydrogen storage Transition metal elements

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

宋孝宗朝崇苏文风之形成与苏文的传播

海南大学学报（人文社会科学版） 2025年第1期43卷 36-42页

作者：杜昭郑州大学文学院河南郑州450001

孝宗朝由于孝宗皇帝崇苏轼“立天下之大节”,雄视百代,为“一代文章之宗”,故多方推广苏轼文学,采取一系列举措,从而深刻影响了当时的太学文风,也提升了士人尊苏崇苏的热度。孝宗朝将苏轼文学传播从困境中解脱出来,使得“淳熙中,崇苏氏... 详细信息

孝宗朝由于孝宗皇帝崇苏轼“立天下之大节”,雄视百代,为“一代文章之宗”,故多方推广苏轼文学,采取一系列举措,从而深刻影响了当时的太学文风,也提升了士人尊苏崇苏的热度。孝宗朝将苏轼文学传播从困境中解脱出来,使得“淳熙中,崇苏氏”成为一种社会倾向,同时,也为元明清三代以至于今日的苏轼文学传播奠定了良好基础。而孝宗朝的崇苏又有其更深远的意义,在于延及世人对三苏家教家风的更多关注与研究。

关键词：宋孝宗崇苏苏轼文学传播

维普期刊数据库博看期刊

Strategies for achieving fast-charge and high-voltage polymer-based solid-state lithium metal batteries

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2025年

作者： Zitian Lin Sucheng Liu Ce Cui Wuhua Liu Yufeng Su Huiyu Song Li du Jianqiang Hu Zhiming Cui Guangdong Provincial Key Laboratory of Fuel Cell Technology School of Chemistry and Chemical Engineering South China University of Technology

Solid-state polymer electrolytes hold the potential for market application due to the combination of advantageous properties,such as flexibility,ease of processing and low ***,the sluggish ion transport and poor high-voltage stability pose significant challenges for the practical application of polymer-based solid-state lithium metal batteries (SSLMBs).Therefore,the design and development of polymer-based SSLMBs toward fast-charge and high-voltage is of great significance in high-energydensity ***,this review deeply analyzes the mechanism of ion transport and anti-oxidation of polymer-based solidstate ***,we also systematically and comprehensively summarize the factors that affect ionic conductivity and the electrochemical ***,we outline the solution strategies for simultaneously enhancing both ionic conductivity and high-voltage ***,we discuss the main challenges and the future prospects of polymer-based SSLMBs for further *** is hoped that this review can provide both advances and fundamentals to the research community and pave the way for the development of SSLMBs

关键词：

Liquid refractive index measurement method based on orthogonal polarization laser self-mixing interference

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Optoelectronics Letters 2025年

作者： ZHAO Yan WANG Haipeng du Shengzhi TONG Jigang KANG Jun School of Electrical Engineering and Automation， Tianjin University of Technology Tianjin Key Laboratory for Control Theory and Applications in Complicated Systems Department of Electrical Engineering， Tshwane University of Technology

In this paper， a novel method combining orthogonal polarization laser self-mixing interference is proposed. The method utilizes a rotating cuvette to measure the refractive index of liquids at different concentrations. The cuvette is filled with the liquid to be measured and rotated by a certain angle. The change in the number of interference fringes， caused by comparing an empty cuvette with a liquid-filled cuvette， is used to calculate the refractive index of the liquid. A four-fold logic subdivision algorithm is then used to improve measurement resolution. The experimental results show that for pure water and different NaCl and glucose solutions concentrations， the average relative errors are 0.47%， 0.59%， and 2.17%， respectively， with the maximum relative error within ±2.54%. The standard deviation of all solutions is less than 3.4%.

关键词：

The low-latitude sodium layer:comparative data from lidar observations at Hainan,China and São Paulo,Brazil

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Earth and Planetary Physics 2025年第1期9卷 39-53页

作者： Fang Wu Jing Jiao GuoTao Yang LiFang du ZhengKuan Liu HaoRan Zheng JiXin Guo ShaoHua Gong YaJun Zhu State Key Laboratory of Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China Hainan National Field Science Observation and Research Observatory for Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China China-Brazil Joint Laboratory for Space Weather NSSC/INPESão Josédos Campos 12227-010Brazil School of Physics and Electronics Engineering Hainan Normal UniversityHaikou 571158China

Physical and chemical processes observed in the mesosphere and thermosphere above the Earth’s low latitudes are complex and highly interrelated to activity in the low-latitude *** sodium detected by lidar can yield clues to dynamic and chemical processes in these spatial layers above the Earth’s *** paper is based on sodium layer data collected at two low-latitude stations,one in the northern hemisphere and one in the *** low-latitude sodium layer exhibits conspicuous seasonal variations in shape,density,and altitude;these variations are similar between Earth’s hemispheres:sodium layer density at both stations reaches its seasonal maximum in autumn and minimum in ***,maximal Na density over Brazil is greater than that over *** variations of Na density above the two low-latitude stations are also similar;at both,maxima are observed before *** variations of the Na layer over Brazil that differ from those observed in the northern hemisphere may be related to the South Atlantic Magnetic Anomaly(SAMA)or fountain *** suggest that low-latitude Na layer data may provide useful additional evidence that could significantly improve the low-latitude part of the WACCM-Na model.

关键词： metallic sodium layer seasonal variation nocturnal variation lidar

维普期刊数据库

体位选择结合自体血胸腔注入治疗术后持续漏气伴肺复张不全前瞻性研究

在线全文

学校读者我要写书评

暂无评论

中华结核和呼吸杂志 2023年第4期46卷 404-407页

作者：张华许伟伟陈常娣葛长胜郑志刚段存玲薛广伟蔡永登张炜王蕾孙中美李宗芳杜彩玲高妍张杰良日照市中医医院呼吸与危重症医学科日照276800 日照市人民医院呼吸科日照276800

前瞻性研究2020年10月至2022年3月因自发性气胸或巨型肺大疱就诊于日照市中医医院行内科胸腔镜介入治疗、术后经胸腔闭式引流3 d仍持续漏气且行胸部CT提示肺复张不全或术后持续漏气经体位选择结合凝血酶胸腔注入(简称“体位加1.0”)干... 详细信息

前瞻性研究2020年10月至2022年3月因自发性气胸或巨型肺大疱就诊于日照市中医医院行内科胸腔镜介入治疗、术后经胸腔闭式引流3 d仍持续漏气且行胸部CT提示肺复张不全或术后持续漏气经体位选择结合凝血酶胸腔注入(简称“体位加1.0”)干预失败,应用体位选择联合自体血(100 ml)及凝血酶(5000 U)胸腔注入(简称“体位加2.0”)治疗的17例患者资料。“体位加2.0”干预的成功率为16/17,复发率为3/17,4例患者出现发热,4例出现胸腔积液,1例发生脓胸,余无其他不良反应。本研究显示,对于内科胸腔镜治疗大疱性肺-胸膜疾病术后持续漏气并肺复张不全或“体位加1.0”干预失败者,“体位加2.0”干预安全、有效,且操作简单。

关键词：自发性气胸前瞻性研究自体血内科胸腔镜胸膜疾病中医医院肺复张胸腔积液

维普期刊数据库

The Stochastic Maximum Principle for a Jump-Diffusion Mean-Field Model Involving Impulse Controls and Applications in Finance

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science & Complexity 2020年第1期33卷 26-42页

作者： LI cailing LIU Zaiming WU Jinbiao HUANG Xiang School of Mathematics and Statistics Central South UniversityChangsha 410083China Research and Development Center Agricultural Bank of ChinaBeijing 100161China

This paper establishes a stochastic maximum principle for a stochastic control of mean-field model which is governed by a Lévy process involving continuous and impulse *** authors also show the existence and uniqueness of the solution to a jump-diffusion mean-field stochastic differential equation involving impulse *** for its application,a mean-variance portfolio selection problem has been solved.

关键词： Impulse control jump-diffusion Markowitz’s mean-variance model stochastic maximum principle

维普期刊数据库

在线全文

学校读者我要写书评

暂无评论

农村人力资本结构高级化对乡村振兴的影响

华东经济管理 2025年第1期39卷 52-62页

作者：徐增阳杜亚楠杜猛华中师范大学公共管理学院湖北武汉430079

优化农村人力资本结构对有效实施乡村振兴战略具有深远的意义。文章基于2012—2023年中国30个省份的面板数据,运用固定效应模型、调节效应模型和门槛效应模型实证分析农村人力资本结构高级化对乡村振兴的影响。研究发现:农村人力资本结... 详细信息

优化农村人力资本结构对有效实施乡村振兴战略具有深远的意义。文章基于2012—2023年中国30个省份的面板数据,运用固定效应模型、调节效应模型和门槛效应模型实证分析农村人力资本结构高级化对乡村振兴的影响。研究发现:农村人力资本结构高级化促进乡村振兴,但存在区域异质性;科技创新在农村人力资本结构高级化对乡村振兴的影响中所起的调节作用因经济社会发展水平不同而有差异;农村人力资本结构高级化对乡村振兴存在单一门槛效应,对外开放跨过门槛值9.386后,农村人力资本结构高级化对乡村振兴的促进作用减弱。由此得出分类施策促进农村人力资本结构高级化、营造创新环境、处理好农产品外贸出口与内销的关系等政策启示。

关键词：农村人力资本结构乡村振兴共同富裕科技创新对外开放

维普期刊数据库博看期刊

Performance enhancement of perovskite solar cells with Cs2PtI6-xBrx absorber layer based on numerical simulation

在线全文

学校读者我要写书评

暂无评论

Optoelectronics Letters 2025年

作者： du Zuyan Yuan Yujie Hou Guofu Xin Yupeng Bi Jinlian Li Wei Tianjin Key Laboratory of Film Electronic and Communication Devices， School of Integrated Circuit Science and Engineering， Tianjin University of Technology Institute of Photoelectronic Thin Film Devices and Technology， Nankai University

Cs2TiBr6， characterized as a lead-free vacancy-ordered double perovskite material， demonstrates notable stability and photoelectric performance， rendering it suitable for application in perovskite solar cells. However， the experimental efficiency of this material is currently limited， achieving only 3.12%. This efficiency limitation primarily stems from the material’s wide bandgap， which results in insufficient light absorption. To address this issue， this study utilized Cs2PtI6-xBrxfor band structure fine-tuning. By adjusting the bandgap of Cs2PtI6-xBrxthrough Br-doping， not only was the alignment of the energy bandgap in the absorption layer effectively adjusted， but the cutoff range of light absorption was also significantly expanded. Setting the Cs2PtI6-xBrxbandgap to 1.4 eV resulted in optimal device performance. Additionally， comparative analyses aimed at boosting solar cell efficiency were performed on both hole transport and electron transport layer materials. Subsequently， the structure of the perovskite solar cell was optimized using an FTO/TiO2/Cs2TiBr6/Cs2PtI6-xBrx/Cu2O/Au configuration. Furthermore， the influence of the absorber layer thickness and defect density on device performance was studied. Ultimately， this configuration enabled the Cs2TiBr6/Cs2PtI6-xBrxsolar cell to achieve a peak conversion efficiency of 29.69%.

关键词：

Weak feedback self-mixing interference fringe slope discrimination method based on deep learning

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Optoelectronics Letters 2025年

作者： ZHAO Yan LIN Maohua du Shengzhi TONG Jigang LIU Bin HAN Fangfang School of Electrical Engineering and Automation， Tianjin University of Technology Tianjin Key Laboratory for Control Theory and Applications in Complicated Systems Department of Electrical Engineering， Tshwane University of Technology

In order to identify the tilt direction of the self-mixing interference (SMI) signals under weak feedback regime interfered by noise， a deep learning method is proposed. The one-dimensional U-Net (1D U-Net) neural network can discriminate the direction of self-mixing fringes accurately and quickly. For experimental SMI signals， the 1D U-Net can be used for discriminant direction after a one-step normalization. Simulation and experimental results show that the proposed method is suitable for SMI signals with noise within the whole weak feedback regime， and can maintain a high discrimination accuracy for signals interfered by 5dB noise. Combined with fringe counting method， accurate and rapid SMI signal displacement reconstruction can be realized.

关键词：