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Journal of Materiomics 2022年第2期8卷 327-334页

作者： Huibin Zhang Tingting Liu Zehao Huang Junye Cheng Honghan Wang Deqing Zhang Xuewei Ba guangping zheng Ming Yan Maosheng Cao School of Materials Science and Engineering Qiqihar UniversityQiqihar 161006China Department of Mechanical Engineering Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Department of Materials Science and Engineering And Shenzhen Key Laboratory for Additive Manufacturing of High-performance MaterialsSouthern University of Science and TechnologyShenzhen 518055China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China

Flexible and wearable electromagnetic interference(EMI)shielding material is one of the current research focuses in the field of EMI *** this work,for the first time,WS_(2)-carbon fiber(WS_(2)-CF)composites are synthesized by implanting WS_(2),which has a multiphase structure and a large number of defects,onto the surface of carbon fiber(CF)by using a simple one-step hydrothermal method,and are applied to protect electronic devices from *** is found that the EMI shielding performance of WS_(2)-CF is significantly improved,especially for those at Se and *** 2 GHz,the EMI shielding efficiency could reach 36.0 dB at a typical thickness of 3.00 mm of the composite,which is much better than that of pure CF(25.5 dB).Besides paving a novel avenue to optimize the electromagnetic shielding performance of flexible and wearable CF-based EMI shielding materials,which have great potential in the practical application for EMI shielding,this work provides a new paradigm for the design and synthesis of EMI shielding materials which have a broad application prospect.

关键词： Flexible electromagneic shielding Carbon fibers WS_(2) Conductive networks

Construction of multiple interfaces and dielectric/magnetic heterostructures in electromagnetic wave absorbers with enhanced absorption performance:A review

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Journal of Materiomics 2021年第6期7卷 1233-1263页

作者： Junye Cheng Huibin Zhang Yingfei Xiong Lingfeng Gao Bo Wen Hassan Raza Hao Wang guangping zheng Deqing Zhang Han Zhang Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering College of Mechatronics and Control EngineeringShenzhen UniversityShenzhen518060China School of Materials Science and Engineering Qiqihar UniversityQiqihar161006China Department of Mechanical Engineering Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Collaborative Innovation Center for Optoelectronic Science and Technology International Collaborative Laboratory of 2D Materials for Optoelectronic Science and Technology of Ministry of Education and Guangdong ProvinceShenzhen UniversityShenzhen518060China

The construction of structures with multiple interfaces and dielectric/magnetic heterostructures enables the design of materials with unique physical and chemical properties,which has aroused intensive interest in scientific and technological ***,for electromagnetic(EM)wave absorption,enhanced interface polarization and improved impedence match with high Snoek's limitation could be achieved by multiple interfaces and dielectric/magnetic heterostructures,respectively,which are benificial to high-efficiency electromagnetic wave absorption(EWA).However,by far,the principles in the design or construction of structures with multiple interfaces and dielectric/magnetic heterostructures,and the relationships between those structures or heterostructures and their EWA performance have not been fully summarized and *** article aims to provide a timely review on the research progresses of high-efficency EM wave absorbers with multiple interfaces and dielectric/magnetic heterostructures,focusing on various promising EWA ***,EM attenuation mechanisms in those structures with multiple interfaces and dielectric/magnetic heterostructures are discussed and ***,the changllenges and future developments of EM wave absorbers based on those structures are proposed.

关键词： EM wave absorbers EM attenuation mechanism Multiple interfaces construction Heterostructure construction

Dispersion of Soluble Matters in Newton-dipolar Stratified Fluid and Effects of Peripheral Layer

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Communications in Nonlinear Science and Numerical Simulation 1998年第4期3卷 236-241页

作者： Zhangji LU, Shousheng DONG, Yu SHEN and guangping zheng (Department of Mechanics and Engineering Science, Fudan University, Shanghai 200433,China)(Department of Physics, East China Normal University, Shanghai 200062, China) Dept. of Mechanics and Eng. Science Fudan University Shanghai 200433 China Department of Physics East China Normal University Shanghai 200062 China

In the paper, the dispersion law and the concentration distributions of soluble matters in Newton-dipolar fluids flowing through a circular tube have been investigated. Main results are: (1) for the dependence of M on A (or H), the completely opposite trends are obtained in the cases with and without the peripheral layer. (2) effects of δ on　M have the minimum values near 8=0.85-0.9. (3) various models such as couple stress,micropolar, dipolar, Newton-newtonian, Newton-couple stress and Newton-micropolar　model etc. are all special cases of Newton-dipolar fluid (where Mz=0). WhenMz≠ 0,however, there are evident differences between the Newton-dipolar fluid and the Newtoncouple stress fluid, the Newton-micropolar fluid.

关键词： dipolar fluid dispersion effects of a peripheral layer tube flow of complex fluid

Synergetic dielectric loss and magnetic loss towards superior microwave absorption through hybridization of few-layer WS2 nanosheets with NiO nanoparticles

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Science Bulletin 2020年第2期65卷 138-146,88页

作者： Deqing Zhang Yingfei Xiong Junye Cheng Jixing Chai Tingting Liu Xuewei Ba Sana Ullah guangping zheng Ming Yan Maosheng Cao School of Materials Science and Engineering Qiqihar UniversityQiqihar 161006China Department of Mechanical Engineering Hong Kong Polytechnic UniversityHong KongChina Department of Materials Science and Engineering and Shenzhen Key Laboratory for Additive Manufacturing of High-performance MaterialsSouthern University of Science and TechnologyShenzhen 518055China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China

WS2 nanomaterials have attracted great attention in the field of electromagnetic wave absorption due to their high specific surface area,layered structure,and peculiar electronic ***,further improvements on their limited electromagnetic absorbing(EMA)capacity and bandwidth are urgently required for their practical application as EMA *** this work,WS2/NiO hybrids with heterostructures are prepared by a hydrothermal method and developed into EMA *** maximum reflection loss of the hybrids with 20%NiO loading could reach-53.31 dB at a thickness of 4.30 mm;the bandwidth with a reflection loss value of less than-10 dB is determined to be13.46 GHz(4.54–18 GHz)when the thickness of the absorbent is between 3.5 and 5.5 *** is found that the enhanced EMA performance of WS2/NiO hybrids is caused by the addition of magnetic NiO,which could result in the interfaces between WS2 and NiO being responsible for the synergetic magnetic loss and dielectric loss in the *** work provides a new approach for the design of excellent EMA materials for practical applications.

关键词： 2D nanosheets WS2/NiO hybrids Hetero-structures Microwave absorption

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牛羊瘤胃臌气症状及防治措施

畜牧兽医科学（电子版） 2022年第10期 56-57页

作者：郑光萍山西省大同市灵丘县畜牧兽医服务中心山西大同034400

瘤胃臌气病在牛羊养殖过程中较易发生,其临床表现为瘤胃体积增大,胃壁扩张,呼吸困难等病症。主要的发生原因是牛羊食用了大量容易发酵的粮食或牧草,从而导致食物在牛羊的瘤胃中快速发酵,形成大量体气所产生的消化系统疾病。牛羊瘤胃臌... 详细信息

瘤胃臌气病在牛羊养殖过程中较易发生,其临床表现为瘤胃体积增大,胃壁扩张,呼吸困难等病症。主要的发生原因是牛羊食用了大量容易发酵的粮食或牧草,从而导致食物在牛羊的瘤胃中快速发酵,形成大量体气所产生的消化系统疾病。牛羊瘤胃臌气在春秋季节较易发生,具有病程较短、发病迅速等特点,如不能及时采取合理处理措施,可造成患病牛羊因窒息而死亡。

关键词：牛羊瘤胃臌气预防措施治疗方法

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基于新型植树挖坑机的Pro/E仿真

农机化研究 2013年第6期35卷 73-76,116页

作者：郑广平覃海英娄玉印广西大学机械工程学院南宁530004

基于保护环境的原则,针对传统挖坑机的缺点,研发了一种挖坑质量高、速度快、安全可靠、劳动强度低、挖坑成本低且能适应不同坑深要求、地形变化和土壤硬度等条件的新型挖坑机。介绍了新型挖坑机的工作原理,并运用三维软件Pro/E进行了运... 详细信息

基于保护环境的原则,针对传统挖坑机的缺点,研发了一种挖坑质量高、速度快、安全可靠、劳动强度低、挖坑成本低且能适应不同坑深要求、地形变化和土壤硬度等条件的新型挖坑机。介绍了新型挖坑机的工作原理,并运用三维软件Pro/E进行了运行学分析,真实再现了挖坑机的工况。结果表明,新型植树挖坑机能够满足工作要求。

关键词：挖坑机三维软件仿真

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板栗自动脱壳机的研制

农机化研究 2015年第6期37卷 113-115,119页

作者：覃海英徐亚茹郑广平广西大学机械工程学院南宁530004

在现有板栗脱壳方法的基础上,设计了一种板栗自动脱壳机,由电机、动力传动部分、自动调节装置、脱壳辊筒刀和筛选机构等组成。自动调节装置能够根据板栗直径的大小实现自动调节,筛选机构可较好地将板栗外壳和栗仁进行分离,而且脱壳辊筒... 详细信息

在现有板栗脱壳方法的基础上,设计了一种板栗自动脱壳机,由电机、动力传动部分、自动调节装置、脱壳辊筒刀和筛选机构等组成。自动调节装置能够根据板栗直径的大小实现自动调节,筛选机构可较好地将板栗外壳和栗仁进行分离,而且脱壳辊筒刀维修和橡胶片更换方便。试验结果证明,该机脱壳率可达95%以上,且能耗较低。

关键词：板栗自动脱壳机自动调节装置筛选机构

Matlab可视化在大学物理演示实验中的应用

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科教导刊 2016年第7期 47-48页

作者：郑光平胡南周密重庆理工大学光电信息学院重庆400054

利用Matlab的GUI功能在可视化图形处理和科学计算方面的能力,我们设计了物理实验的牛顿环的光学仿真模拟,从模拟效果来看,实验仿真非常生动,同时也可以进行模拟测量,达到了预想的效果。

关键词： Matlab 可视化光学仿真牛顿环

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家庭农作物切片切碎机的设计

农机化研究 2015年第3期37卷 154-156页

作者：覃海英徐亚茹郑广平广西大学机械工程学院南宁530004

针对现有的农作物切片机械成本高、耗能大、功能单一等问题,开发设计了一款家庭农作物切片切碎机,可实现对农作物的半成品加工以及对农作物茎秆的切碎。该机工作时产生的震动和噪音小、能耗少、操作简易、安全高效。

关键词：家庭农作物切片切碎机自动输送自动调节

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基于工作空间布局的板材冲压生产线改造

现代制造工程 2015年第5期 12-16,136页

作者：云庆乾廖小平白艳新郑广平广西大学机械工程学院南宁530004

报告了国内板材冲压生产线的现状,针对板材冲压生产线中存在的工作空间布局不合理和生产效率低的问题,基于工作研究进行系统分析,提出了一种可有效节省工作空间、提高生产效率并大大改善劳动环境的可行性技术改造方案,特别是应用了折叠... 详细信息

报告了国内板材冲压生产线的现状,针对板材冲压生产线中存在的工作空间布局不合理和生产效率低的问题,基于工作研究进行系统分析,提出了一种可有效节省工作空间、提高生产效率并大大改善劳动环境的可行性技术改造方案,特别是应用了折叠伸缩臂技术,解决了目前生产线上下料形式占用空间大的瓶颈问题。经车间试行,验证了该方案的有效性和可行性。

关键词：板材冲压工作研究工作空间技术改造折叠伸缩