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Enhanced resonance frequency in Co2FeAl thin film with different thicknesses grown on flexible graphene substrate

Chinese Physics B 2024年第3期33卷 618-622页

作者：周偲袁少康朱登玉白宇明王韬刘福福潘禄禄冯存芳张博涵何大平汪胜祥 Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing Wuhan Textile UniversityWuhan 430200China School of Electronic and Electrical Engineering Wuhan Textile UniversityWuhan 430200China School of Mathematical and Physical Sciences Wuhan Textile UniversityWuhan 430200China School of Integrated Circuits Huazhong University of Science and TechnologyWuhan 430074China Key Laboratory for Magnetism and Magnetic Materials Ministry of EducationLanzhou UniversityLanzhou 730000China Beijing National Center for Condensed Matter Physics and Institute of Physics Chinese Academy of SciencesBeijing 100190China Hubei Engineering Research Center of RF-Microwave Technology and Application Wuhan University of TechnologyWuhan 430070China

The flexible materials exhibit more favorable properties than most rigid substrates in flexibility,weight saving,mechanical reliability,and excellent environmental ***,flexible graphene film with unique mechanical properties was extensively explored in high frequency ***,we report the characteristics of structure and magnetic properties at high frequency of Co2FeAl thin film with different thicknesses grown on flexible graphene substrate at room *** exciting finding for the columnar structure of Co2FeAl thin film lays the foundation for excellent high frequency property of Co2FeAl/flexible graphene ***-plane magnetic anisotropy field varying with increasing thickness of Co2FeAl thin film can be obtained by measurement of ferromagnetic resonance,which can be ascribed to the enhancement of crystallinity and the increase of grain ***,the resonance frequency which can be achieved by the measurement of vector network analyzer with the microstrip method increases with increasing thickness of Co2FeAl thin ***,in our case with graphene film,the resonance magnetic field is quite stable though folded for twenty cycles,which demonstrates that good flexibility of graphene film and the stability of high frequency magnetic property of Co2FeAl thin film grown on flexible graphene *** results are promising for the design of microwave devices and wireless communication equipment.

关键词： enhanced resonance frequency magnetic resonance field flexible graphene substrate

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Electric-field-induced in-plane effective 90°magnetization rotation in Co2FeAl/PMN-PT structure

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Chinese Physics B 2021年第5期30卷 639-643页

作者： Cai Zhou Dengyu Zhu Fufu Liu Cunfang Feng Mingfang Zhang Lei Ding Mingyao Xu Shengxiang Wang Hubei Province Engineering Research Center for Intelligent Micro-nano Medical Equipment and Key Technologies Wuhan Textile UniversityWuhan 430200China Key Laboratory for Magnetism and Magnetic Materials Ministry of EducationLanzhou UniversityLanzhou 730000China Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing Wuhan Textile UniversityWuhan 430200China

The in-plane effective 90°magnetization rotation of Co_(2) FeAl thin film grown on PMN-PT substrate induced by the electric field is investigated at room *** magnetic hysteresis loops under different positive and negative electric fields are obtained,which reveals remanent magnetization can be mediated by the electric ***,under positive electric fields,the obvious 90°magnetization rotation can be observed,while remanent magnetization is nearly unchanged under negative electric *** result is consistent with the electric field dependence of effective magnetic field,which can be attributed to the piezostrain effect in Co_(2) FeAl/PMN-PT *** addition,the piezostrain-mediated 90°magnetization rotation can be demonstrated by the result of resonance field changing with electric field in the measurement of ferromagnetic resonance,which is promising for the design of future multiferroic devices.

关键词： electric field 90° magnetization rotation Co_(2)FeAl/PMN-PT structure

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One-step Eco-friendly fabrication of Antibacterial Polyester Via On-line Amination Reaction by Melt Coextrusion

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Journal of Wuhan University of technology(Materials Science) 2023年第5期38卷 1205-1212页

作者： ZHANG Huan ZHAO Qinghua ZHONG Yaping CAI Ruiyan LIU Ke WANG Dong LU Zhentan Key Laboratory of Textile Fiber and Products Wuhan Textile UniversityMinistry of EducationHubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials&ApplicationSchool of Materials Science and EngineeringWuhan Textile UniversityWuhan 430200China Guangdong Engineering Technology Research Center of Functional Fibers for Clothing Guangdong BobaolonCo.Ltd.Puning515300China

The work is dedicated to develop a one-step eco-friendly method to prepare antibacterial polyethylene terephthalate(PET).We report a one-step eco-friendly method to manufacture antibacterial PET via on-line amination reaction by melt *** evenly mixing of poly(hexamethylene guanidine)(PHMG)and PET in the melt coextrusion procedure,the amination reaction also occurred between PHMG and PET under high temperature(230-270℃).The antibacterial ability of composite PET showed obvious PHMG concentration dependence,and antibacterial activity reached more than 99%when PHMG content was 2.5 wt%.Moreover,LIVE/DEAD fluorescence test further confirmed that the composite PET could kill bacteria quickly and efiectively(within 30 min);while negligible cytotoxicity was observed to HSF and HUVEC *** eco-friendly fabrication of composite antibacterial PET was accomplished by on-line melt *** composite antibacterial PET has potential use in multiple fields to combat with pathogenic including textiles,packaging materials,decoration materials and biomedical devices,etc.

关键词： antibacterial polyester one-step eco-friendly method on-line amination reaction melt coextrusion cytocompatibility

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Study on appearance and electrical properties of reused solar modules

Study on appearance and electrical properties of reused sola...

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2021 International Conference on Computer, Remote Sensing and Aerospace, CRSA 2021

作者： Wang, Xiaojing Huang, Xiaoli School of Electronic and Electrical Engineering Wuhan Textile University Wuhan430074 China Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing Wuhan Textile University Wuhan430074 China Hubei PV center of Engineering&Technology Wuhan430074 China

A test platform for reused solar modules was established in Wuhan in order to study the appearance changes, aging problems and degradation rate in electrical properties of the reused modules. The photovoltaic modules were mono-Si modules produced by Siemens in *** was found that there was moisture at the edge of the *** aging of tin-coated copper strip was obvious, and there was blackening phenomenon. There were many white spots on the solar cells around the tin-coated strip, and the solar cells turned blue *** average annual power attenuation rate of different modules varied greatly, but it was mainly related to the increase of series resistance of modules. The integrated average annual power attenuation of PV modules was about 3.59% during 4 years. © 2021 Institute of Physics Publishing. All rights reserved.

关键词： Electric resistance

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Electrochemical evolution of a metal oxyhydroxide surface on two-dimensional layered metal phosphorus trisulfides enables the oxidation of amine to nitrile

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Carbon Energy 2025年第3期7卷 133-147页

作者： Binglan Wu Karim Harrath Marshet Getaye Sendeku Tofik Ahmed Shifa Yuxin Huang Jing Tai Fekadu Tsegaye Dajan Kassa Belay Ibrahim Xueying Zhan Zhenxing Wang Elisa Moretti Ying Yang Fengmei Wang Alberto Vomiero State Key Laboratory of Chemical Resource Engineering College of ChemistryBeijing University of Chemical TechnologyBeijingChina CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology(NCNST)BeijingChina Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of EducationCollege of Chemistry&Materials ScienceNorthwest UniversityXi'anChina State Key Laboratory of Multiphase Flow in Power Engineering International Research Center for Renewable EnergyXi'an Jiaotong UniversityShaanxiChina Fundamental Science Center of Rare Earths Ganjiang Innovation AcademyChinese Academy of ScienceGanzhouChina Ocean Hydrogen Energy R&D Center Research Institute of Tsinghua University in ShenzhenShenzhenChina Department of Molecular Sciences and Nanosystems Ca'Foscari University of VeniceVenezia MestreItaly Testing and Analysis Center Institute of Chemistry Chinese Academy of SciencesBeijingChina Department of Engineering Sciences and Mathematics Division of Materials ScienceLuleåUniversity of TechnologyLuleåSweden

Selective oxidation of amines to imines through electrocatalysis is an attractive and efficient way for the chemical industry to produce nitrile compounds,but it is limited by the difficulty of designing efficient catalysts and lack of understanding the mechanism of ***,we demonstrate a novel strategy by generation of oxyhydroxide layers on two-dimensional iron-doped layered nickel phosphorus trisulfides(Ni1-xFexPS_(3))during the oxidation of benzylamine(BA).In-depth structural and surface chemical characterizations during the electrocatalytic process combined with theoretical calculations reveal that Ni(1-x)FexPS_(3) undergoes surface reconstruction under alkaline conditions to form the metal oxyhydroxide/phosphorus trichalcogenide(NiFeOOH/Ni1-xFexPS_(3))***,the generated heterointerface facilitates BA oxidation with a low onset potential of 1.39 V and Faradaic efficiency of 53%for benzonitrile(BN)*** calculations further indicate that the as-formed NiFeOOH/Ni1-xFexPS_(3) heterostructure could offer optimum free energy for BA adsorption and BN desorption,resulting in promising BN synthesis.

关键词： 2D layered materials benzylamine oxidation metal phosphorus trichalcogenides surfacereconstructed heterostructure

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Tailoring the electronic acceptor–donor heterointerface between black phosphorus and Co_(3)O_(4) for boosting oxygen bifunctional electrocatalysis

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Chinese Chemical Letters 2023年第2期34卷 284-289页

作者： Jing Zou Yilun Zou Haitao Wang Wei Wang Pingxiu Wu Arramel Jizhou Jiang Xin Li School of Chemistry and Environmental Engineering School of Environmental Ecology and Biological EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationHubei Tree Gorges LaboratoryWuhan Institute of TechnologyWuhan 430205China Key Laboratory of Rare Mineral Ministry of Natural ResourcesGeological Experimental Testing Center of Hubei ProvinceWuhan 430034China Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials Hunan Institute of Science and TechnologyYueyang 414006China Semiconductor Electronic Special Gas of Hubei Engineering Research Center Jingzhou 434000China Nano Center Indonesia Jl.PUSPIPTEK Tangerang SelatanBanten 15314Indonesia Institute of Biomass Engineering Key Laboratory of Energy Plants Resource and UtilizationMinistry of Agriculture and Rural AffairsSouth China Agricultural UniversityGuangzhou 510642China

Black phosphorus (BP) as an uprising two-dimensional material exhibits attractive potential in the field of electrocatalysis due to the inherent advantages of high carrier mobility and abundant lone pair ***,the exposed active electrons compel BP to be deactivated by oxidative ***,the electronic signature of acceptor-donor heterointerfacial interactions between BP and Co_(3)O_(4)is realized via wet ball *** preferential migration of active electrons from BP to Co_(3)O_(4)is achieved at the heterointerface since the Fermi level of BP is higher than that of Co_(3)O_(4).Such relative energetic consideration promotes reasonable oxygen electrocatalytic active ***,it significantly suppresses the oxidative degradation of ***,the resulting Co_(3)O_(4)/BP heterojunction possesses superior oxygen bifunctional electrocatalytic activity than its parent *** importantly,this work promotes an efficient route towards BP-based multifunctional catalysts.

关键词： Electronic acceptor-donor Black phosphorus Co_(3)O_(4) Charge transfer Oxygen bifunctional electrocatalysis

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Data Classification and Aggregation in Flexible Clothing Based on Cloud Computing Analysis 11

Data Classification and Aggregation in Flexible Clothing Bas...

引用

11th International Conference of Information and Communication technology, ICTech 2022

作者： Yi, Zhang Ally, Juma Said Juan, Kang Cong, Mei Wuhan Textile University. Elec Wuhan China Wuhan Textile University Hubei Functional Fiber Processing and Testing Engineering Technology Research Center Wuhan China College of Information and Communications Technology Mbeya University of Science and Technology Tanzania United Republic of Wuhan Textile University. E&e Wuhan China

ISBN: (数字)9781665496940

ISBN: (纸本)9781665496940

The intelligent clothing system involves a large number of acquisition processes. In general, this process includes data terminal acquisition, data cleaning, data processing and analysis. These devices can monitor the area covered by the network in real time. Even through the adjustment of system parameters, so as to improve the comfort of clothing. For example, in high temperature environment, through the system control to speed up the loss of body heat. On the contrary, in low temperature environment, through regulating control to reduce the body heat emission, prevent temperature loss. An analysis of body perception parameters is used to predict the outcome of a risk before it occurs. Thus improve the effectiveness of medical rescue. The work is to design an efficient monitoring network for local monitoring and share data with the terminal Numerical simulation proves that the design strategy in this article can improve the network throughput and process the data in the order of priority. © 2022 IEEE.

关键词： Risk assessment

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An Ultrasensitive Optical fiber Spr Sensor Enhanced by functionalized Carbon Quantum Dots for Fe3+ Measurement

SSRN

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SSRN 2025年

作者： Zhou, Youquan Wang, Ning Huang, Xiaoyu Xia, Binyun Chen, Xiaohan Jing, Xinyue Li, Jinhua National Engineering Research Center of Fiber Optic Sensing Technology and Networks Wuhan University of Technology Wuhan430070 China Hubei Optical Fundamental Research Center Wuhan430019 China Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer Materials Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry School of Materials Science and Engineering Hubei University Ministry of Education Wuhan430062 China

As one of the important nutrients in living organisms, iron is crucial for normal physiological functions. By detecting the iron concentration in the body, iron metabolism can be evaluated and its deficiency or excess can be detected on time, which is beneficial for health monitoring and disease diagnosis, such as anemia and iron overload syndrome. Recently, various detection methods and sensors have been widely developed for measuring iron in living organisms, but the tradeoff between their performance and practical applications has not been achieved, such as high sensitivity, trace concentration, excellent specificity, simple structure and fabrication, low cost, and so on. In this study, an optical fiber SPR sensor was developed sensor for label-free detecting Fe³⁺ based on the multimode-coreless-multimode (MNM) structured optical fiber. The refractive index (RI) sensitivity of the MNM fiber reached 3434.26 nm/RIU by coating a 60 nm Au film modified with gold nanoparticles (AuNPs). The organic groups functionalized carbon quantum dots (CQDs) were synthesized and immobilized onto the Au substrates for specifically trapping Fe³⁺, which will cause the variation of the effective RI around the fiber, thereby resulting in the SPR wavelength shift in the transmission spectrum. By recording the red shift of the SPR wavelength, the amount of Fe³⁺ could be accurately quantified. Upon detection of Fe³⁺, the sensor was demonstrated with great linearity within a wide detection range of 10⁻¹² to 10⁻² M. The sensor’s sensitivity was obtained to be about 2.07 nm/lg [Fe³⁺] and its limit of detection (LOD) was calculated to be about 2.88 × 10⁻¹³ M. It was also experimentally proved with superior selectivity and stability, as well as the potential application in simulated real serum samples. The proposed sensing platform offered a simple configuration for Fe³⁺ detection with excellent performance and had various potential practical applications such as health monitoring, disease dia

关键词： Gold nanoparticles

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Analysis of software pricing based on binomial tree option pricing model

Analysis of software pricing based on binomial tree option p...

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2020 International Conference on engineering Management of Communication and technology, EMCTECH 2020

作者： Wu, Qin Wu, Min Sun, Yunzhou Department of Management Engineering and Equipment Economics Naval University of Engineering Wuhan430033 China Department of Management and Economics Xinzhou Vocational School Wuhan430033 China Hubei Functional Fiber Processing and Testing Engineering Technology Research Center Wuhan Textile University Wuhan430073 China

ISBN: (纸本)9781665404488

A new method is designed for software pricing, which is enlightened from binomial tree option pricing model. Firstly, it is constructed about the software pricing model based on binomial tree. Secondly, computation method is shown later. Thirdly, the applicability of this computation method is demonstrated by an example. According to the calculation results, it is found out that the most two important variables are initial value of software and successful probability of every stage, which are of strong effects to the price of software. In addition, it is also concluded that value created in coding stage is usually smaller than value created in requirements stage and design stage. © 2020 IEEE.

关键词： Costs

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Analysis of software pricing based on binomial tree option pricing model

Analysis of software pricing based on binomial tree option p...

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Information Science, Parallel and Distributed Systems (ISPDS), International Conference on

作者： Qin Wu Min Wu Yunzhou Sun Naval University of Engineering Wuhan China Xinzhou Vocational School Wuhan China Hubei functional fiber processing and testing Engineering Technology Research Center Wuhan Textile University Wuhan China

ISBN: (数字)9781728196688

ISBN: (纸本)9781728196695

关键词： Software Pricing Mathematical model Active appearance model Computational modeling Encoding Standards

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