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Carbon Fiber Supported Binary Metal Sulfide Catalysts with Multi-Dimensional Structures for Electrocatalytic Nitrogen Reduction Reactions Over a Wide pH Range

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Advanced Fiber Materials 2021年第4期3卷 229-238页

作者： Tianyi Zhang Wei Zong yue Ouyang yue Wu yue-E Miao Tianxi Liu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringInnovation Center for Textile Science and TechnologyDonghua University2999 North Renmin RoadShanghai 201620People’s Republic of China Research Center for Analysis and Measurement Donghua UniversityShanghai 201620People’s Republic of China Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122People’s Republic of China

Green and environmentally friendly electrocatalytic nitrogen(N_(2))fixation to synthesize ammonia(NH3)is recognized as an effective method to replace the traditional Haber-Bosch ***,the difficulties in N_(2) adsorption and fracture of hard N≡N bond still remain major challenges in electrocatalytic N_(2) reduction reactions(NRR).From the perspectives of enhancing N_(2) adsorption and providing more catalytic sites,two-dimensional(2D)FeS_(2) nanosheets and three-dimensional(3D)metal organic framework-derived ZnS embedded within N-doped carbon polyhedras are grown on the carbon cloth(CC)template in this ***,a composite NRR catalyst with multi-dimensional structures,which is signed as FeS_(2)/ZnS-NC@CC,is obtained for using over a wide pH *** uniform distribution of hollow ZnS-NC frameworks and FeS_(2) nanosheets on the surface of CC largely increase the N_(2) enrichment efficiency and offer more active sites,while the CC skeleton acts as an independent conductive substrate and S-doping helps promote the fracture of N≡N bond during the NRR *** a result,the FeS_(2)/ZnS-NC@CC electrode achieves a high Faraday efficiency of 46.84%and NH3 yield of 58.52μg h^(−1) mg^(−1) at-0.5 V ***/AgCl in 0.1 M ***,the FeS_(2)/ZnS-NC@CC electrode displays excellent NRR catalytic activity in acidic and neutral electrolytes as well,which outperforms most previously reported electrocatalysts including noble ***,this work provides a new way for the design of multi-dimensional electrocatalysts with excellent electrocatalytic efficiency and stability for NRR applications.

关键词： Multi-dimensional structure Heteroatom doping Carbon fiber cloth Electrocatalytic nitrogen reduction

CFD investigation of the feasibility of polymer-based microchannel heat sink as thermal solution

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Chinese Journal of Chemical Engineering 2020年第4期28卷 980-994页

作者： yue Seong Ong KuZilati KuShaari Department of Chemical Engineering University Teknologi PETRONASSeri IskandarMalaysia

Microchannel heat sinks(MCHSs)are promising thermal solutions in miniaturized or compact *** aspect has been given huge emphasis in recent ***-based materials are commonly used to fabricate MCHSs due to their high thermal ***,MCHSs are heavy due to the high density of these materials albeit the small footprint of ***-based materials are interesting *** their poor thermal conductivity,lightweight feature attracts the interest of *** transfer is a conjugate process of heat conduction and heat *** heat conductions aspect may be compensated through enhancement of heat convection *** polymer-based materials have been used in microscale heat transfer studies,their focus was not on their *** present study aims to evaluate the feasibility of polymer-based MCHSs as thermal *** effect of thermal conductivity of fabrication materials,including polymer-based PDMS,PTFE,PDMS/MWCNT,and metal-based aluminum,on the thermal performance of MCHSs was investigated and compared at various inlet flow rate,fluid thermal conductivity,and microchannel ratio at different constant heat fluxes using three-dimensional CFD *** showed that the thermal performance of MCHSs was greatly affected by the heat conduction aspect in which poor heat conduction limited the thermal performance improvement due to enhanced heat convection *** suggests polymer-based materials have the potential for heat transfer applications through thermal conductivity *** was confirmed in the further analysis using a recently proposed high thermal conductivity polymer-based graphite/epoxy MCHS and a hybrid-based PDMS/aluminum MCHS.

关键词： Microchannel heat sink Thermal performance Thermal conductivity Microchannel ratio Computational fluid dynamic

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n-exact Categories Arising from n-exangulated Categories

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Acta Mathematica Sinica,English Series 2023年第9期39卷 1781-1794页

作者： Jian He Pan yue Zhou Department of Applied Mathematics Lanzhou University of TechnologyLanzhou730050P.R.China School of Mathematics and Statistics Changsha University of Science and TechnologyChangsha410114P.R.China

Let l be a Krull-Schmidt n-exangulated category and A be an n-extension closed subcategory of *** A inherits the n-exangulated structure from the given n-exangulated category in a natural *** construction gives n-exangulated categories which are neither n-exact categories in the sense of Jasso nor(n+2)-angulated categories in the sense of Geiss-Keller-Oppermann in ***,we also give a sufficient condition on when an n-exangulated category A is an n-exact *** results generalize work by Klapproth and Zhou.

关键词： (n+2)-angulated categories n-exact categories n-extension closed subcategories n-exangulated categories

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Some Special Types of Multisoliton Solutions of the Nizhnik-Novikov-Vesselov

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Chinese Physics Letters 2000年第11期17卷 781-783页

作者： LOU Sen-yue Department of Applied Physics Shanghai Jiao Tong UniversityShanghai

Using the standard truncated Painleve analysis,we have obtained some new special types of soliton solutions of a(2-pl)-dimensional integrable model,the Nizhnik-Novikov-Vesselov *** from the standard truncation approach in the Painleve analysis,one can obtain a Backlund transformation to find a new solution from a known ***,one can obtain only a single solitary wave solution from the Backlund transformation related to the truncated Painleve analysis starting from the trivial vacuum *** this paper,we find some special types of the multisoliton solutions from the truncated Painleve analysis and the trivial vacuum solution.

关键词： solution. equation. soliton

From Plant Modeling to Narrative Science:Growing and Enjoying Scientific Fruits Naturally and Humanistically

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IEEE/CAA Journal of Automatica Sinica 2024年第12期11卷 2522-2524页

作者： Fei-yue Wang IEEE Macau University of Science and Technology the State Key Laboratory for Management and Control of Complex Systems Chinese Academy of Sciences

Dear Editor,Modeling is the first and essential step for control and automation,and large models, from current Chat GPT or large language models(LLMs) to future large knowledge models of knowledge automation,would be ... 详细信息

关键词： science modeling plant from enjoying fruits growing humanistically narrative naturally

Preparation and utilization of wheat straw anionic sorbent for the removal of nitrate from aqueous solution

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Journal of Environmental Sciences 2007年第11期19卷 1305-1310页

作者： WANG Yu GAO Bao-yu yue Wen-wen yue Qin-yan School of Environmental Science and Engineering Shandong University Jinan 250100 China Environmental Monitoring Center of Shandong Province Jinan 250013 China

In order to reduce the impact of eutrophication caused by agricultural residues （i.e., excess nitrate） in aqueous solution, economic and effective anionic sorbents are required. In this article, we prepared anionic sorbent using wheat straw. Its structural characteristics and adsorption properties for nitrate removal from aqueous solution were investigated. The results indicate that the yield of the prepared anionic sorbent, the total exchange capacity, and the maximum adsorption capacity were 350%, 2.57 mEq/g, and 2.08 mmol/g, respectively. The Freundlich isotherm mode is more suitable than the Langmuir mode and the adsorption process accords with the first order reaction kinetic rate equation. When multiple anions （SO4^2-, H2PO4^-, NO3^-, and NO2^-） were present, the isotherm mode of prepared anionic sorbent for nitrate was consistent with Freundlich mode; however, the capacity of nitrate adsorption was reduced by 50%. In alkaline solutions, about 90% of adsorbed nitrate ions could be desorbed from prepared anionic sorbent. The results of this study confirmed that the wheat straw anionic sorbent can be used as an excellent nitrate sorbent that removes nitrate from aqueous solutions.

关键词： adsorption anionic sorbent nitrate thermodynamic wheat straw (MWS) adsorption adsorption kinetics raw wheat straw (RWS) modified

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Topcolor Assisted Technicolor Models and Single Top Quark Production via at the Tevatron

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Communications in Theoretical Physics 2001年第7期36卷 53-60页

作者： yue Chong-Xing College of Physics and Information Engineering Henan Normal University Xinxiang 453002 China

TC2 theory predicts a number of new particles including gauge bosons, technipions and top-pions. In this paper, we study and calculate the corrections of all these new particles to single top-quark production rate via the process at the Fermilab Tevatron. Our results show that the correction mainly comes from the virtual effect of the top-pions. With reasonable value of the parameters, the relative correction is larger than 15% which may be detected at the Tevatron RunII or RunIII.

关键词： single top-quark prodution gauge bosons technipions FERMILAB TEVATRON quark production technicolor

基于改进DeblurGAN-v2的运动模糊农作物害虫图像复原方法

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光电子·激光 2025年第1期36卷 46-52页

作者：赵辉黄镖王红君岳有军天津理工大学电气工程与自动化学院天津市复杂系统控制理论与应用重点实验室

为对巡检机器人在巡检过程中产生的运动模糊图像进行高效精准识别，提出了一种基于改进DeblurGAN-v2的运动模糊农作物害虫图像复原方法。为有效提取图像重要特征，该方法将通道注意力(channel attention, CA)机制集成到DeblurGAN-v2主... 详细信息

为对巡检机器人在巡检过程中产生的运动模糊图像进行高效精准识别，提出了一种基于改进DeblurGAN-v2的运动模糊农作物害虫图像复原方法。为有效提取图像重要特征，该方法将通道注意力(channel attention, CA)机制集成到DeblurGAN-v2主干网格中，使模型更加关注细节特征，提高对运动模糊图像的复原能力；此外，在原模型特征提取网络顶层引入空间金字塔池化(spatial pryamid pooling, SPP)缓解图像多尺度变化造成对图像复原的负面影响，提高模型对图像复原的性能。基于实际农田环境建立的数据集所做的实验结果表明，改进后算法的PSNR、SSIM指标分别为26.281 8 dB、0.947 3,较原模型提升了8、7.2个百分点。与其他主流模型的对比实验结果表明，本文方法对模糊图像的实际复原效果更优，对解决运动模糊农作物害虫的图像复原问题具有实际应用价值。

关键词：运动模糊深度学习图像复原 DeblurGAN-v2 通道注意力(CA)机制空间金字塔池化(SPP)模块

A visualized soundscape prediction model for design processes in urban parks

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Building Simulation 2023年第3期16卷 337-356页

作者： Ran yue Qi Meng Da Yang yue Wu Fangfang Liu Wei Yan Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology Ministry of Industry and Information TechnologySchool of ArchitectureHarbin Institute of TechnologyChina

Existing soundscape prediction model application conditions and calculation processes are very complex,and difficult to combine with design ***,in this study,a visual soundscape prediction model is constructed for sound pressure level(SPL)prediction,sound source prediction,and soundscape evaluation prediction by inputting the elements of urban design under the meshing method(grid 50 m)into a machine learning Gaussian mixture model(GMM).Taking three typical urban parks as examples,the soundwalk method is used to collect subjective perception information on-site to verify prediction *** results show that by applying geographic information data,including the minimum distance values from predicted points to roads,entrances and exits,and internal nodes,the SPL can be *** the accuracy rate is stable within a 3 dBA error range,the prediction accuracy rate is 67.7%.The visual perception information added is used to quickly predict the sound source type,and the output is the visualized distribution of the natural,human,and mechanical sound perception with a 77.4%accuracy ***,combining geographic,visual and sound data to predict soundscape evaluation,the model's output are good,medium,and poor categories for each descriptor of the soundscape evaluation,and the prediction results are visualized in three colours with a 74.2%accuracy *** convenient soundscape prediction model proposed in this paper can be applied to design *** adjusting park design elements,the distribution results can be compared,and an optimal design scheme from the soundscape perspective can be *** with the model output,this study compares the model simulation results after adjusting the design elements and the original,and proposes targeted optimisation strategies for urban park soundscape.

关键词： soundscape prediction model urban park architectural design visualization