检索结果-南通市图书馆

Nano Research 2024年第6期17卷 5087-5094页

作者： chenhao xiao Yaxiao Guo Jiayuan Sun Tao Guo Xinyuan Jia Shinuo Guo Guancheng Wu Yue Sun Zhaoyang Yao Yi Liu State Key Laboratory of Separation Membranes and Membrane Processes School of ChemistryTiangong UniversityTianjin 300387China Key Laboratory of Functional Polymer Materials College of ChemistryNankai UniversityTianjin 300071China School of Chemical and Environmental Engineering Wuhan Polytechnic UniversityWuhan 430023China

Electrocatalytic nitrate reduction to ammonia(NO3−RR)for removing nitrate from wastewater is a promising but challengeable technology that is increasingly ***,we developed an efficient CuO_(x)and CoCuO_(x)composed hybrid catalyst(CoCuO_(x)@CuO_(x)/copper foam(CF)),characteristic of distinctive shell-core nanowires grown on CF substrate with CuO_(x)core and CoCuO_(x)*** built-in electric field formed at the interface of the CoO/Cu_(2)O heterostructure promotes NO3−adsorption by modulating the charge distribution at the interface,which greatly improves the ammonia yield rate and Faradaic ***−0.2 V *** hydrogen electrode(RHE),CoCuO_(x)@CuO_(x)/CF achieves not only an excellent ammonia yield rate of up to 519.1μg·h^(−1)·cm^(−2)and Faradaic efficiency of 99.83%at 1 mM NO3−concentration,but also excellent mechanical *** study provides a novel pathway to design electrocatalyst for the removal of nitrate from dilute nitric acid solutions(≤2 mM).

关键词： CoCuO_(x)@CuO_(x)/copper foam(CF) shell-core nanowires heterostructure low concentration nitrate electroreduction to ammonia

Synergistically enhanced ORR and HER performance on Co-N-C coupled in-situ generated PtCo intermetallic

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

Journal of Energy Chemistry 2025年第1期100卷 721-729页

作者： Guanyu Luo Min Song Lulu An xiao Huang Qian Zhang chenhao Zhang Tao Shen Shuang Wang Deli Wang Key Laboratory of Material Chemistry for Energy Conversion and Storage(Huazhong University of Science and Technology)Ministry of Education School of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina

Integrating multi-scale sites in a composite catalyst is vital to realize efficient ***,a synergistic composite catalyst consisting of Co atomic sites and in-situ generated PtCo intermetallic compounds (IMCs)(o-PtCo@CoNC) is proposed through Co pre-anchoring and subsequent impregnation-reduction *** loading of Co atoms provides a chance for in-situ generating PtCo ordered intermetallic *** remaining Co single atoms and PtCo IMCs construct synergistic electrocatalytic *** from the ordered structure,synergistic effect of Pt Co IMCs and Co single atoms,o-PtCo@CoNC exhibits excellent electrocatalytic performance for oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) with mass activity of 1.21 A mgPt-1(at 0.9 V) and5.70 A mgPt-1(at an overpotential of 100 mV),***,o-PtCo@CoNC delivers negligible loss of half-wave potential and overpotential during long-term stability test in acid solutions,with 13 mV decay after 50,000 potential cycles for ORR and a 2.7 mV decay after 20,000 potential cycles for *** integration strategy of single-atomic sites coupled IMCs paves the way for enhancing the activity and durability of Pt-based electrocatalysts.

关键词： Synergistic effect Intermetallics Single atomic sites Oxygen reduction reaction Hydrogen evolution reaction

A novel detection method for warhead fragment targets in optical images under dynamic strong interference environments

在线全文

学校读者我要写书评

暂无评论

Defence Technology(防务技术) 2025年第1期43卷 252-270页

作者： Guoyi Zhang Hongxiang Zhang Zhihua Shen Deren Kong chenhao Ning Fei Shang xiaohu Zhang Sun Yat-Sen University Guangzhou 510275China Nanjing University of Science and Technology Nanjing 210094China

A measurement system for the scattering characteristics of warhead fragments based on high-speed imaging systems offers advantages such as simple deployment,flexible maneuverability,and high spatiotemporal resolution,enabling the acquisition of full-process data of the fragment scattering ***,mismatches between camera frame rates and target velocities can lead to long motion blur tails of high-speed fragment targets,resulting in low signal-to-noise ratios and rendering conventional detection algorithms ineffective in dynamic strong interference testing *** this study,we propose a detection framework centered on dynamic strong interference disturbance signal separation and *** introduce a mixture Gaussian model constrained under a joint spatialtemporal-transform domain Dirichlet process,combined with total variation regularization to achieve disturbance signal *** results demonstrate that the proposed disturbance suppression method can be integrated with certain conventional motion target detection tasks,enabling adaptation to real-world data to a certain ***,we provide a specific implementation of this process,which achieves a detection rate close to 100%with an approximate 0%false alarm rate in multiple sets of real target field test *** research effectively advances the development of the field of damage parameter testing.

关键词： Damage parameter testing Warhead fragment target detection High-speed imaging systems Dynamic strong interference disturbance suppression Variational bayesian inference Motion target detection Faint streak-like target detection

A molecular dynamics simulation route towards Eu-doped multi-component transparent spectral conversion glass-ceramics

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2025年第1期43卷 146-152,I0006页

作者： Xiuxia Xu chenhao Wang Di Wang Wenyan Zheng Zhiyu Liu Jincheng Du Xusheng Qiao Xianping Fan Zhiyu Wang Guodong Qian State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou310027China State Key Laboratory of Silicon Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China Department of Materials Science and Engineering University of North TexasDentonTX76203-5017USA

Eu^(2+)doped fluorosilicate glass-ceramics containing BaF_(2) nanocrystals have high potential as spectral conversion materials for organic solar ***,it is difficult to realize the efficient design of BaF_(2):Eu^(2+)doped fluorosilicate glass and to vividly observe the glass microstructure in experiment through traditional trial-and-error glass preparation ***_(2):Eu^(2+)doped fluorosilicate glassceramics with high transparency,and high photoluminescence(PL)performance were predicted,designed and prepared via molecular dynamics(MD)simulation *** MD simulation prediction,self-organized nanocrystallization was realized to inhibit the abnormal growth of nanocrystals due to[AlO_(4)]tetrahedra formed in the fluoride-oxide *** introduction of NaF reduces the effective phonon energy of the glass because Na+will prompt Al^(3+)to migrate from the fluoride phase to the silicate phase and *** local environment of Eu^(2+)is optimized by predicting the doping concentration of EuF_(3) and 2 mol%EuF3 is the best concentration in this ***-ceramics sample GC2Eu as spectral conversion layer was successfully applied on organic solar cells to obtain more available visible phonons with a high photoelectric conversion efficiency(PCE).This work confirms the guidance of molecular dynamics simulation methods for fluorosilicate glasses design.

关键词： Molecular dynamics simulation Fluorosilicateglass Spectral conversion Organic solarcell Rareearths

H_(2)S and NIR light-driven nanomotors induce disulfidptosis for targeted anticancer therapy by enhancing disruption of tumor metabolic symbiosis

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2025年第1期36卷 427-432页

作者： Shangqian Zhang Jiaxuan Li Xuan Hu Zelong Chen Junliang Dong chenhao Hu Shuang Chao Yinghua Lv Yuxin Pei Zhichao Pei College of Chemistry&Pharmacy Northwest A&F UniversityYangling 712100China

Disulfidptosis,a novel mechanism of programmed cell death through the disruption of tumor metabolic symbiosis(TMS),has showed tremendous potential in cancer ***,the efficacy of disulfidptosis is limited by poor permeability of drugs in solid ***,hydrogen sulfide(H_(2)S)and nearinfrared(NIR)light-driven nanomotors(denoted as HGPP)have been constructed to efficiently penetrate tumors and induce *** demonstrate glutathione(GSH)-responsive release of H_(2)S,which combined with NIR light-induced photothermal effect drive HGPP movement to facilitate deep tumor *** released H_(2)S induces tumor acidosis and disrupts TMS,where disulfide accumulation following cell starvation leads to *** addition,HGPP induce hepatoma specific cellular uptake and catalyze the conversion of glucose and oxygen to produce hydrogen peroxide(H_(2)O_(2)),leading to glucose ***,this study has developed a multifunctional Janus nanomotor that provides a novel strategy for disulfidptosis-based solid tumor therapy.

关键词： H_(2)S NIR light Nanomotors Disulfidptosis Tumor metabolic symbiosis

High peak power mini-array quantum cascade lasers operating in pulsed mode

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2025年第1期34卷 339-342页

作者： Yuhang Zhang Yupei Wang xiaoyue Luo chenhao Qian Yang Cheng Wu Zhao Fangyuan Sun Jun Wang Zheng-Ming Sun Southeast University-Monash University Joint Graduate School(Suzhou) Southeast UniversitySuzhou 215125China School of Materials Science and Engineering Southeast UniversityNanjing 211189China College of Electronics and Information Engineering Sichuan UniversityChengdu 610065China Huaiyin Institute of Technology Huaian 223003China Suzhou Everbright Photonics Co. Ltd.Suzhou 215163China

Broad area quantum cascade lasers(BA QCLs)have significant applications in many areas,but suffer from demanding pulse operating conditions and poor beam quality due to heat accumulation and generation of high order modes.A structure of mini-array is adopted to improve the heat dissipation capacity and beam quality of BA *** active region is etched to form a multi-emitter and the channels are filled with In P:Fe,which acts as a lateral heat dissipation channel to improve the lateral heat dissipation efficiency.A device withλ~4.8μm,a peak output power of 122 W at 1.2%duty cycle with a pulse of 1.5μs is obtained in room temperature,with far-field single-lobed *** result allows BA QCLs to obtain high peak power at wider pump pulse widths and higher duty cycle conditions,promotes the application of the mid-infrared laser operating in pulsed mode in th e field of standoff photoacoustic chemical detection,space optical communication,and so on.

关键词： quantum cascade laser mini-array thermal management

Recent Progress and Prospects in Remote Sensing Image Intelligent Extraction of Cartographic-level Vector Elements

在线全文

学校读者我要写书评

暂无评论

Journal of Geo-Information Science 2025年第2期27卷 285-304页

作者： Liu, Diyou Kong, Yunlong Chen, Jingbo Wang, chenhao Meng, Yu Deng, Ligao Deng, Yupeng Zhang, Zheng Song, Ke Wang, Zhihua Chu, Qifeng National Engineering Research Center for Geomatics Aerospace Information Research Institute Chinese Academy of Sciences Beijing100094 China School of Electronic Electrical and Communication Engineering University of Chinese Academy of Sciences Beijing101408 China State Key Laboratory of Resources and Environment Information System Institute of Geographic Science and Natural Resources Research Chinese Academy of Sciences Beijing100101 China Heilongjiang Geographic Information Engineering Institute Harbin150086 China

[Significance] The extraction of Cartographic-Level Vector Elements (CLVE) is a critical prerequisite for the direct application of remote sensing image intelligent interpretation in real-world scenarios. [Analysis] In recent years, the continuous rapid advancement of remote sensing observation technology has provided a rich data foundation for fields such as natural resource surveying, monitoring, and public surveying and mapping data production. However, due to the limitations of intelligent interpretation algorithms, obtaining the necessary vector elements data for operational scenarios still heavily relies on manual visual interpretation and human-computer interactive post-processing. Although significant progress has been made in remote sensing image interpretation using deep learning techniques, producing vector data that are directly usable in operational scenarios remains a major challenge. [Progress] This paper, based on the actual data needs of operational scenarios such as public surveying and mapping data production, conducts an in-depth analysis of the rule constraints for different vector elements in remote sensing image interpretation across a wide range of operational contexts. It preliminarily defines "cartographic-level vector elements" as vector element data that complies with certain cartographic standard constraints at a specific scale. Centered on this definition, the content of the rule set for CLVE is summarized and analyzed from nine dimensions, including vector types, object shapes, boundary positioning, area, length, width, angle size, topological constraints, and adjacency constraints. Evaluation methods for CLVE are then outlined in four aspects: class attributes, positional accuracy, topological accuracy, and rationality of generalization and compromise. Subsequently, through literature collection and statistical analysis, it was observed that research on deep learning-based vector extraction, while still in its early stages, has shown

关键词： Semantic Segmentation

中庭参数化吊顶生成设计研究--同济大学设计创意学院三期大厅吸音吊顶设计

在线全文

学校读者我要写书评

暂无评论

住宅科技 2018年第1期38卷 1-6页

作者：汪滋淞肖晨昊申辰璐同济大学设计创意学院中国绿色建筑与节能专业委员会绿色校园学组同济绿色建筑协会

如何提高高校校园空间的声环境水平,关系到学生的学习品质和质量,基于声环境优化及学院形象识别性理念的高校中庭参数化吸音吊顶生成设计研究,以由工业建筑遗产改建的同济大学设计创意学院三期大厅中庭空间为实践工程进行研究。探讨理... 详细信息

如何提高高校校园空间的声环境水平,关系到学生的学习品质和质量,基于声环境优化及学院形象识别性理念的高校中庭参数化吸音吊顶生成设计研究,以由工业建筑遗产改建的同济大学设计创意学院三期大厅中庭空间为实践工程进行研究。探讨理性与艺术性融合的高校教学楼中庭空间室内设计策略,为今后中国高校的绿色室内设计发展提供一些借鉴和参考。

关键词：声环境优化参数化吊顶环境吸音体绿色室内设计

中国绿色交通技术创新的时空特征及其影响因素

在线全文

学校读者我要写书评

暂无评论

地理科学 2025年第1期45卷 119-129页

作者：高鑫丁晨浩侯鑫段德忠重庆师范大学地理与旅游学院重庆401331 三峡库区地表过程与生态修复重庆市重点实验室重庆401331 华东师范大学地理科学学院上海200241 华东师范大学全球创新与发展研究院上海200062

绿色低碳交通是中国顺利实现“双碳目标”的必由之路,而绿色交通技术创新是发展绿色低碳交通的核心动力。借鉴OECD的绿色交通专利识别方法,本文建构了2001-2020年中国城市尺度的绿色交通专利申请量时空数据库,揭示了近20 a中国绿色交通... 详细信息

绿色低碳交通是中国顺利实现“双碳目标”的必由之路,而绿色交通技术创新是发展绿色低碳交通的核心动力。借鉴OECD的绿色交通专利识别方法,本文建构了2001-2020年中国城市尺度的绿色交通专利申请量时空数据库,揭示了近20 a中国绿色交通技术创新活动的时空分布特征,并基于时间、个体双固定效应的面板回归模型以及协整分析探讨了其内外部影响因素。研究发现:(1)道路运输类、运输中的促成技术类2个领域的创新引领着中国绿色交通技术创新。前者占比达62.8%,后者占比51.5%;(2)创新主体实现了由个人为主到企业为主的转换。企业创新主体占比达82.4%;(3)中国绿色交通技术创新的空间分异显著,且日趋集中,珠三角与长三角地区愈发成为绿色交通技术创新高地。深圳远超上海,在道路运输类、运输中的促成技术类2类最重要的创新类别中位列第1;(4)全国尺度,城市综合交通可达性、研发投入对城市绿色交通技术创新的产出起到普遍的促进作用,东部地区研发投入和城市综合交通可达性对绿色交通技术创新起到更大的正向影响,中部地区城市规模和研发投入发挥主要的促进作用,西部地区城市规模、城市交通物流产业区位商、外国直接投资及政府环境规制起到促进作用。创新门槛、外资作用、环境规制与环境现状对绿色交通技术创新的影响机制明显异于绿色技术创新。此外,绿色交通内部技术系统中,运输中的促成技术类创新对其他类别的技术创新有显著促进作用。

关键词：绿色交通技术创新 OECD专利分类运输中的促成技术

同方期刊数据库

Effects of Hot Deformation on the Evolution of Microstructure in Pearlitic Steel Wire Rod

在线全文

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 2023年第12期36卷 2058-2068页

作者： Zhendan Yang xiao Zhang chenhao Sang Pei Wang Dianzhong Li Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China

The influences of hot deformation parameters on pearlite grain nucleation and growth during austenite-pearlite phase transformation in a steel wire rod have been investigated through quantitative analysis of microstructure parameters such as austenite grain size,ferrite grain size,pearlite colony size,and lamellar *** hot deformation,the austenite grain size decreases due to recrystallization,providing extra nucleation sites for pearlite phase transformation,which decreases the ferrite grain size and pearlite colony ***,the stored strain energy in undercooled austenite accelerates carbon diffusion during pearlite phase transformation,which facilitates ferrite grain growth and increases pearlite colony ***,the competing influence of recrystallization and strain energy provides flexibility in adjusting ferrite grain size and colony size by hot *** study highlights the critical role of hot deformation in determining the microstructure of pearlitic steel.

关键词： Pearlite Pearlitic phase transformation Hot deformation Microstructure Stored strain energy