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NANO-MICRO LETTERS 2025年第1期17卷 1-17页

作者： Zhang, Chaoran Gu, Yichuan jiang, qu Sheng, Ziyang Feng, Ruohan Wang, Sihong Zhang, Haoyue Xu, Qianqing Yuan, Zijian Song, Fang Shanghai Jiao Tong Univ Sch Mat Sci & Engn State Key Lab Met Matrix Composites Shanghai 200240 Peoples R China

Structural reconstruction of electrocatalysts plays a pivotal role in catalytic performances for CO2 reduction reaction (CO2RR), whereas the behavior is by far superficially understood. Here, we report that CO2 accessibility results in a universal self-adaptive structural reconstruction from Cu2O to Cu@CuxO composites, ending with feeding gas-dependent microstructures and catalytic performances. The CO2-rich atmosphere favors reconstruction for CO2RR, whereas the CO2-deficient one prefers that for hydrogen evolution reaction. With the assistance of spectroscopic analysis and theoretical calculations, we uncover a CO2-induced passivation behavior by identifying a reduction-resistant but catalytic active Cu(I)-rich amorphous layer stabilized by *CO intermediates. Additionally, we find extra CO production is indispensable for the robust production of C2H4. An inverse correlation between durability and FECO/FEC2H4 is disclosed, suggesting that the self-stabilization process involving the absorption of *CO intermediates on Cu(I) sites is essential for durable electrolysis. Guided by this insight, we design hollow Cu2O nanospheres for durable and selective CO2RR electrolysis in producing C2H4. Our work recognizes the previously overlooked passivation reconstruction and self-stabilizing behavior and highlights the critical role of the local atmosphere in modulating reconstruction and catalytic processes.

关键词： CO2 reduction reaction Electrocatalysts Cu2O Reconstruction Self-adaptive electrocatalysis

Deterioration in Heat Transfer of Endothermal Hydrocarbon Fuel

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Journal of Thermal Science 2011年第2期20卷 173-180页

作者： Weixing Zhou Wen Bao jiang Qin Yunfeng qu Harbin Institute of Technology Harbin China 150001

Numerical studies under supercritical pressure are carried out to study the heat transfer characteristics in a single-root coolant channel of the active regenerative cooling system of the scramjet engine, using actual physical properties of pentane. The relationships between wall temperature and inlet temperature, mass flow rate, wall heat flux, inlet pressure, as well as center stream temperature are obtained. The results suggest that the heat transfer deterioration occurs when the fuel temperature approaches the pseudo-critical temperature, and the wall temperature increases rapidly and heat transfer coefficient decreases sharply. The decrease of wall heat flux, as well as the increase of mass flow rate and inlet pressure makes the starting point of the heat transfer deterioration and the peak point of the wall temperature move backward. The wall temperature increment induced by heat transfer deterioration decreases, which could reduce the severity of the heat transfer deterioration. The relational expression of the heat transfer deterioration critical heat flux derives from the relationship of the mass flow rate and the inlet pressure.

关键词： supercritical pressure pentane heat transfer deterioration numerical study

Advanced architecture designs towards high-performance 3D microbatteries

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Nano Materials Science 2021年第2期3卷 140-153页

作者： Yang Li jiang qu Fei Li Zhe qu Hongmei Tang Lixiang Liu Minshen Zhu Oliver G.Schmidt Material Systems for Nanoelectronics Chemnitz University of Technology09107 ChemnitzGermany Institute for Integrative Nanosciences Leibniz IFW Dresden01069 DresdenGermany Center for Materials Architectures and Integration of Nanomembranes(MAIN)Chemnitz University of Technology09126 ChemnitzGermany School of Science Dresden University of TechnologyDresden01062Germany

Rechargeable microbatteries are important power supplies for microelectronic *** essential targets for rechargeable microbatteries are high output energy and minimal footprint *** addition to the development of new high-performance electrode materials,the device configurations of microbatteries also play an important role in enhancing the output energy and miniaturizing the footprint *** make a clear vision on the design principle of rechargeable microbatteries,we firstly summarize the typical configurations of *** advantages of different configurations are thoroughly discussed from the aspects of fabrication technologies and material *** the high energy output at a minimal footprint area,a revolutionary design for microbatteries is of great *** this perspective,we review the progress of fabricating microbatteries based on the rolled-up nanotechnology,a derivative origami ***,we discussed the challenges and perspectives in the device design and materials optimization.

关键词： Microbatteries Origami technologies Rolled-up nanotechnology 3D devices Energy storage performance

The coupling control of biological precursors and environmental factors onβ-carotane enrichment in alkaline lacustrine source rocks:A case study from the Fengcheng formation in the western Junggar Basin,NW China

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Petroleum Science 2024年第2期21卷 836-854页

作者： Mao-Guo Hou Ming Zha Hua Liu Hai-Lei Liu jiang-Xiu qu Ablimit Imin Xiu-Jian Ding Zhong-Fa jiang School of Geosciences China University of PetroleumQingdaoShandong266580China Research Institute of Exploration and Development Xinjiang Petroleum Administration BureauKaramayXinjiang834000China

The organic-rich mudstones and dolostones of the Permian Fengcheng Formation(Fm.)are typically alkaline lacustrine source rocks,which are typified by impressively abundantβ-*** β-carotane has been well acknowledged as an effective indicator of biological sources or depositional ***,the specific biological sources of β-carotane and the coupling control of biological sources and environmental factors on the enrichment of β-carotane in the Fengcheng *** *** on a comprehensive investigation of the bulk,molecular geochemistry,and organic petrology of sedimentary rocks and the biochemistry of phytoplankton in modern alkaline lakes,we proposed a new understanding of the biological precursors of β-carotane and elucidated the enrichment mechanism of β-carotane in the Fengcheng *** results show that the biological precursors crucially control the enrichment of β-carotane in the Fengcheng *** haloalkaliphilic cyanobacteria are the primary biological sources of β-carotane,which is suggested by a good positive correlation between the 2-methylhopane index,7-+8-methyl heptadecanes/C_(max),C_(29%),and β-carotane/C_(max)in sedimentary rocks and the predominance of cyanobacteria with abundantβ-carotene in modern alkaline *** enrichment of β-carotane requires the reducing condition,and the paleoredox state that affects the enrichment of β-carotane appears to have a *** paleoclimate conditions do not considerably impact the enrichment of β-carotane,but they have some influence on the water's paleosalinity by affecting evaporation and *** it does not directly affect the enrichment of β-carotane in the Fengcheng Fm.,paleosalinity does have an impact on the cyanobacterial precursor supply and the preservation conditions.

关键词： β-carotane enrichment Cyanobacterial input Environmental impact Alkaline lacustrine source rocks The Fengcheng formation

Robot programming by demonstration: a novel system for robot trajectory programming based on robot operating system

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Advances in Manufacturing 2020年第2期8卷 216-229页

作者： Hong-Da Zhang Shou-Bin Liu qu-jiang Lei Yue He Yang Yang Yang Bai Guangzhou Institute of Advanced Technology Chinese Academy of SciencesGuangzhou 511458People's Republic of China

In this article,a new trajectory programming system that allows non-expert users to intuitively and efficiently program trajectories for robots is *** system tracks a pen-shaped marker and obtains its position and orientation by processing the point cloud data of the workspace.A graphical user interface,which enables users to save and execute the acquired trajectory immediately after performing trajectory demonstration,is designed and developed for the *** performance of the developed system is experimentally evaluated by using it to program trajectories for a UR5 *** results indicate that compared with traditional kinesthetic programming,the developed system has the potential of significantly reducing the ergonomic stress and workload of *** system is developed based on the robot operating system,which facilitates its integration with different robot control systems.

关键词： Programming by demonstration(PbD) Trajectory programming Point cloud Robot operating system(ROS)

Regional Development Theory and Its Instructions for Regional Culture Industry Development

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Regional Development Theory and Its Instructions for Regiona...

Recent developments of stamped planar micro-supercapacitors: Materials,fabrication and perspectives

2013年教育技术与管理科学国际会议

作者： qu jiang-bin MA CE Department Hebei University College of Economics Hebei University

The regional development theory in western countries has been 170 years. It is a certain reference function for regional development planning in China. Culture industry is a kind of recently emergent

ISBN: (纸本)9781629939889

The regional development theory in western countries has been 170 years. It is a certain reference function for regional development planning in China. Culture industry is a kind of recently emergent

关键词： Regional development theory Culture industry Growth pole Isostatic increase theory Industry cluster theory Development theory Regional planning Regional development instruction Culture development plans Regional industries Western Europe

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Nano Materials Science 2021年第2期3卷 154-169页

作者： Fei Li Yang Li jiang qu Jinhui Wang Vineeth Kumar Bandari Feng Zhu Oliver G.Schmidt Material Systems for Nanoelectronics Chemnitz University of Technology09107ChemnitzGermany State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences130022ChangchunChina Center for Materials Architectures and Integration of Nanomembranes(MAIN)Chemnitz University of Technology09126ChemnitzGermany Institute for Integrative Nanosciences Leibniz IFW Dresden01069DresdenGermany School of Science Dresden University of Technology01062DresdenGermany

The rapid development of wearable and portable electronics has dramatically increased the application for miniaturized energy storage *** micro-supercapacitors(MSCs)with planar interdigital configurations are considered as a promising candidate to meet the *** this review,recent progress of the different stamping materials and various stamping technologies are first *** merits of each material,manufacturing process of each stamping method and the properties of stamping MSCs are scrutinized,*** insights on technical difficulties and scientific challenges are finally demonstrated,including the limited thickness of printed electrodes,poor overlay accuracy and printing resolution.

关键词： Microsupercapacitors Stamping Microfabrication Miniaturized electronics Energy storage devices

Comparative Study of the Magnetic Properties and Glass-Forming Ability of Fe-Based Bulk Metallic Glass with Minor Mn, Co, Ni, and Cu Additions

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Acta Metallurgica Sinica(English Letters) 2016年第9期29卷 834-839页

作者： Md Anisur Rahman Yun-Zhuo Lu Qiang Luo Shou-jiang qu Feng-Xia Ye Yi-Xuan Wu Jun Shen School of Materials Science and Engineering Tongji University School of Materials Science and Engineering Dalian Jiaotong University

Fe43MsCra5Mo14C15B6Y2 （M = Mn, Co, Ni, and Cu in at.%） bulk metallic glasses （BMGs） are synthesized using the suction casting technique, and the glass-forming ability （GFA）, microstructure, and thermal and magnetic properties of these glasses are extensively examined using X-ray diffraction, differential scanning calorimeter, and vibrating sample magnetometer techniques. Among the four BMG alloys, Fe43NisCr15Mo14C15B6Y2 exhibits the lowest coercivity and the highest saturation magnetization, Curie temperature, effective magnetic moment, and GFA. By contrast, Fe43MnsCrlsMo14C15B6Y2 presents the poorest magnetic properties, such as the highest coercivity and the lowest saturation magnetization, Curie temperature, and effective magnetic moment. Fe43Cu5Cr15MolaC15B6Y2 demonstrates the lowest thermal stability and GFA. The observed thermal, structural, and magnetic properties of these BMG alloys are discussed in terms of the kinetics of BMG synthesization and the formation of different ferromagnetic, ferrimagnetic, and antiferromagnetic phases.

关键词： Bulk metallic glasses Saturation magnetization Effective magnetic moment Coercivity Glass-forming ability

Urban-Rural Comparison of HBV and HCV Infection Prevalence in Eastern China

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Biomedical and Environmental Sciences 2000年第4期13卷 243-253页

作者： qu jiang-BIN ZHANG ZUO-WEN SHINICHIRO SHIMBO TAKAO WATANABE HARUO NAKATSUKA NAOKO MATSUDA-INOGUCHI KAE HIGASHIKAWA MASAYUKI IKEDA Department of Hygiene Faculty of Public HealthShandong Medical UniversityJinan 250012Shandong ProvinceChina Department of Food and Nutrition Kyoto Women’s UniversityKyoto 605-8501Japan Miyagi University of Education Senda 980-0845Japan Miyagi University Taiwa-cho 981-3298Japan Kyoto Industrial Health Association Kyoto 604-8472Japan

The present study was initiated to make an urban rural comparison of the prevalence of cases positive to hepatitis B and C virus (HBV and HCV, respectively) infection markers in densely populated eastern half of China. For this purpose, 10 survey sites were selected, i.e., six sites in urban areas (the city group; Beijing, Shanghai and four provincial capitals) and four sites in rural areas (the village group ; one village each in Jilin and Shandong Provinces, and two villages in Shaanxi Province). About 50 adult women per site volunteered to participate, from whom 494 valid blood samples were collected. Positivities to HBsAg (HBsAg +), anti HBs (anti HBs +) and anti HBc (anti HBc +) were examined by RIA methods, and that to anti HCV (anti HCV +) by either EIA or RIA. Those positive to any one of the three HBV infection markers were taken as HBV infection positive (HBV +). The prevalence of HBsAg +, HBV + and anti HBc + was 8%, 70% and 2.7% in the city group, and 8%, 65% and 2.0% in the village group, and no significant difference was found between the two groups. The overall prevalence was 8% for HBsAg +, 68% for HBV +, and 2.4% for anti HCV +. The results were discussed in reference to some 20 papers each on HBV + and anti HCV + prevalence in China published since 1991. The reviewing of these papers confirmed that the prevalence of HBV was high (i.e., in excess of 50%), whereas the prevalence of anti HCV was low (well below 5%), and that no substantial difference was found between the rural and urban populations.

关键词： HCV Infection city group Shaanxi Province urban areas rural areas hepatitis B

Hierarchical Spatial Reasoning and Case of Way-Finding

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Geo-Spatial Information Science 2008年第4期11卷 269-272页

作者： WENG Min jiang Shanshan qu Rong School of Resource and Environment Science Wuhan University 129 Luoyu Road Wuhan 430079 China

Human beings use hierarchies to simplify their conceptual models of reality and to perform reasoning more efficiently. Hierarchical structures are conceptually imposed on space and allow performance of complex tasks in very large contexts easily. Hierarchical spatial reasoning is an important method for solving spatial problems. This paper briefly discusses the definition and frame of hierarchical spatial reasoning and its application to way-finding of road networks.

关键词： hierarchical spatial reasoning way-finding road networks