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基于RFID的近距离无线控制系统

电子技术（上海） 2009年第4期36卷 50-52页

作者：邓志诚许亮峰赵安平苏安迪北京邮电大学电信工程学院诺基亚研究中心

提出了一种基于射频识别(RFID)技术的低功耗近距离无线控制系统,介绍了系统的工作原理和硬件结构,并对软件设计中的问题进行了说明。通过采用RFID技术,该系统可实现控制器与多个控制节点之间的高速、双向无线数据传输。

关键词： RFID 控制系统无线通信

油田放射性作业人员外周血淋巴细胞染色体畸变的观察

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辐射防护 1989年第3期9卷 -页

作者：詹江海陈英邓志诚张连珍余裕炉李云华葛林中国辐射防护研究院

本文调查了油田212例受γ射线和中子混合辐射照射的作业人员和30例正常人的外周血淋巴细胞染色体畸变。作业人员受γ射线照射的人均年受照剂量为1.28mGy。调查结果表明,放射性测井人员与正常人相比染色体畸变率有显著差异。

关键词：染色体畸变油田放射性作业人员

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不同因素对陶粒混凝土导热系数的影响研究

四川建材 2020年第5期46卷 8-9页

作者：邓智成梅迎军杨再富陈敬辛转红重庆交通大学重庆400074 重庆建工建材物流有限公司重庆401122 重庆市建筑材料与制品工程技术研究中心重庆401122

为了研究陶粒混凝土在不同影响因素下的导热系数变化规律,利用单因素试验方法,通过稳态法中的热流计法(DRPL-Ⅱ型导热系数测定仪)对陶粒混凝土试件进行了导热系数试验,考察了砂率、粉煤灰掺量、浸水时间三个影响因素对陶粒混凝土导热系... 详细信息

为了研究陶粒混凝土在不同影响因素下的导热系数变化规律,利用单因素试验方法,通过稳态法中的热流计法(DRPL-Ⅱ型导热系数测定仪)对陶粒混凝土试件进行了导热系数试验,考察了砂率、粉煤灰掺量、浸水时间三个影响因素对陶粒混凝土导热系数的影响。结果表明:陶粒混凝土的导热系数随着砂率的增大而减小;陶粒混凝土的导热系数随着粉煤灰掺量的增大而先减小后增大;陶粒混凝土的导热系数随着浸水时间的增加逐渐增大并趋于稳定。研究结果为陶粒混凝土结构内部温度场的精确计算以及保温隔热性能的控制提供更为重要的理论依据。

关键词：陶粒混凝土导热系数热流计法浸水时间

Sandwich-Like Fe&TiO2@C Nanocomposites Derived from MXene/Fe-MOFs Hybrids for Electromagnetic Absorption

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Nano-Micro Letters 2020年第4期12卷 121-136页

作者： Baiwen deng Zhen Xiang Juan Xiong zhicheng Liu Lunzhou Yu Wei Lu Shanghai Key Lab.of D&A for Metal‑Functional Materials School of Materials Science&EngineeringTongji UniversityShanghai 201804People’s Republic of China School of Materials Science&Engineering University of Shanghai for Science and TechnologyShanghai 200092People’s Republic of China

Electromagnetic pollution has been causing a series of problems in people’s life,and electromagnetic absorbers with lightweight and broad absorbing bandwidth properties are widely *** this work,novel sandwich-like 2D laminated Fe&TiO2 nanoparticles@C nanocomposites were rationally designed and successfully developed from the MXene–MOFs *** formation of Fe and rutile-TiO2 nanoparticles sandwiched by the two-dimensional carbon nanosheets provided strong electromagnetic energy attenuation and good impedance matching for electromagnetic wave(EMW)*** expected,the nanocomposites achieved a broad effective absorption bandwidth of 6.5 GHz at a thickness of only 1.6 mm and the minimum reflection loss(RL)value of−51.8 dB at 6.6 GHz with a thickness of 3 *** work not only provides a good design and fabricating concept for the laminated metal and functional nanoparticles@C nanocomposites with good EMW absorption,but also offers an important guideline to fabricate various two-dimensional nanocomposites derived from the MXene precursors.

关键词： MXene Metal–organic frameworks Nanocomposites Electromagnetic wave absorption

Axial and radial electromagnetic-vibration characteristics of converter transformer windings under current harmonics

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High Voltage 2023年第3期8卷 477-491页

作者： Peiyu Jiang Zhanlong Zhang Zijian Dong Yu Yang zhicheng Pan Jun deng State Key Laboratory of Power Transmission Equipment&System Security and New Technology Chongqing UniversityChongqingShapingbaChina Maintenance&Test Centre EHVChina Southern Power GridGuangzhouGuangdongChina

The winding current harmonic content of converter transformer in operation is ***,affected by harmonics,the radial vibration characteristics are quite different from the power transformer,structural loosening and deformation caused by winding vibration are more ***,in view of the influence of current harmonics on axial and radial vibrations,this study builds a 3D winding electromagnetic vibration finite element simulation model,analyses the components and contents of current harmonics,compares the leakage flux and vibration distribution under the fundamental,harmonic and superimposed *** correlation relationship between the harmonic components and axial and radial vibration characteristics is obtained,and the vibration measurement test of±800 kV converter transformer in operation is carried out to verify the correctness of the analysis *** results show that the winding radial vibration amplitude will exceed the axial vibration affected by *** importantly,under the superposition of the fundamental,5th and 7th harmonic current,the vibration contribution of the converter transformer tank is mainly radial vibration,and the vibration dominant frequency is shifted from 100 Hz under the fundamental current to 400 Hz.

关键词： winding harmonics harmonic

Lotus Leaf‑Derived Gradient Hierarchical Porous C/MoS2 Morphology Genetic Composites with Wideband and Tunable Electromagnetic Absorption Performance

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Nano-Micro Letters 2021年第3期13卷 22-38页

作者： Fei Pan zhicheng Liu Baiwen deng Yanyan Dong Xiaojie Zhu Chuang Huang Wei Lu Shanghai Key Lab.of D&A for Metal‑Functional Materials School of Materials Science&EngineeringTongji UniversityShanghai 201804People’s Republic of China School of Materials Science&Engineering University of Shanghai for Science and TechnologyShanghai 200092People’s Republic of China

Inspired by the nature,lotus leaf-derived gradient hierarchical porous C/MoS2 morphology genetic composites(GHPCM)were successfully fabricated through an in situ *** biological microstructure of lotus leaf was well preserved after *** pores with gradient pore sizes ranging from 300 to 5μm were hierarchically distributed in the *** addition,the surface states of lotus leaf resulted in the Janus-like morphologies of *** GHPCM exhibit excellent electromagnetic wave absorption performance,with the minimum reflection loss of−50.1 dB at a thickness of 2.4 mm and the maximum effective bandwidth of 6.0 GHz at a thickness of 2.2 *** outstanding performance could be attributed to the synergy of conductive loss,polarization loss,and impedance *** particularly,we provided a brand-new dielectric sum-quotient model to analyze the electromagnetic performance of the non-magnetic material *** suggests that the specific sum and quotient of permittivity are the key to keep reflection loss below−10 dB within a certain frequency ***,based on the concept of material genetic engineering,the dielectric constant could be taken into account to seek for suitable materials with designable electromagnetic absorption performance.

关键词： Morphology genetic materials Lotus leaf Electromagnetic wave absorption Gradient hierarchical porous structure Dielectric sum-quotient model

X射线离体照射人体淋巴细胞诱发染色体畸变的剂量-效应关系

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辐射防护 1989年第3期9卷 -页

作者：张连珍邓志诚李云华詹江海金璀珍刘秀林中国辐射防护研究院北京放射医学研究所

本文介绍用180kV X射线离体照射人体淋巴细胞诱发染色体畸变的剂量-效应关系的实验结果。实验设9个剂量点(0.1—5.0Gy)和1个对照点(0Gy)。分析结果表明,在(?)剂量范围内。双着丝点体加三着丝点体的畸变率 Y_1(%)、无着丝点断片畸变率 Y_... 详细信息

本文介绍用180kV X射线离体照射人体淋巴细胞诱发染色体畸变的剂量-效应关系的实验结果。实验设9个剂量点(0.1—5.0Gy)和1个对照点(0Gy)。分析结果表明,在(?)剂量范围内。双着丝点体加三着丝点体的畸变率 Y_1(%)、无着丝点断片畸变率 Y_2(%)和总畸变率 Y_3(%)与剂量 D(Gy)的关系宜分别拟合为下列方程:Y_1=-0.336+3.89D+4.49D^2(适用于0.1～5.0Gy);Y_2=0.811+2.15D+2.77D^2;Y_3=0.6(?)5.7D+7.66D^2。在低剂量(0—0.5Gy)范围内,双着丝点体的畸变率Y_(dic)(%)和无着丝点断片畸变率 Y_(Ac)·(%)与剂量 D(Gy)的关系,可分别拟合为 Y_(dic)=-0.0013+4.02D(适用于0.1—0.5Gy),(?)=0.218+4.74D。

关键词：染色体畸变 X射线剂量效应淋巴细胞生物剂量计

两种不同培养基制备方法对振荡法抗菌性测试结果的影响

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染整技术 2022年第6期44卷 51-54,62页

作者：朱晓辉邓智成张诗琪王强余圆圆周曼江南大学纺织科学与工程学院生态纺织教育部重点实验室江苏无锡214122

在纺织品振荡法抗菌性测试过程中,制备培养基时有倒板和划板两种不同的方法。为了研究这两种方法对振荡法抗菌性测试结果的影响,使用不同质量浓度的抗菌整理剂对涤纶、棉织物进行整理,得到了具有不同抑菌率的抗菌试样,并采用振荡法测试... 详细信息

在纺织品振荡法抗菌性测试过程中,制备培养基时有倒板和划板两种不同的方法。为了研究这两种方法对振荡法抗菌性测试结果的影响,使用不同质量浓度的抗菌整理剂对涤纶、棉织物进行整理,得到了具有不同抑菌率的抗菌试样,并采用振荡法测试试样对大肠杆菌和金黄色葡萄球菌的抗菌性。结果表明,两种制板方法所得到的抑菌率偏差不超过5%,划板法得到的抑菌率结果略高于倒板法。在实际应用时可根据实验环境和条件选择合适的方法。

关键词：抗菌性振荡法培养基制备

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A study of plasmon-driven catalytic 4-NBT to DMAB in the dry film by using spatial Raman mapping spectroscopy

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Nano Research 2022年第7期15卷 6062-6066页

作者： Yansheng Liu Junpeng deng zhicheng Jin Tianxing Liu Jin Zhou Feng Luo Guofu Wang School of Microelectronics and Materials Engineering Guangxi University of Science and TechnologyLiuzhou 545006China Department of NanoEngineering University of California San DiegoLa JollaCA 92093USA Tianjin Key Lab for Rare Earth Materials and Applications Center for Rare Earth and Inorganic Functional MaterialsSchool of Materials Science and Engineering&National Institute for Advanced MaterialsNankai UniversityTianjin 300350China

Plasmon-driven catalytic reaction(PDCR)as a part of photocatalysis has attracted immense *** to the collective oscillation of free electrons at the surface of metallic nanostructures,the charge distributions store energy from the incident light that could transfer energy to molecules that promote *** an environment-friendly and green photocatalysis process,PDCR illustrates a brilliant *** this study,the PDCR efficiency of photo-reducing 4-nitro-benzenthiol(4-NBT)dry film to p,p'-dimercaptoazobenzene(DMAB)in ambient conditions has been studied by using Ag nanodiscs(NDs)and Ag nanoparticles(NPs)as *** distribution of catalytic efficiency of 4-NBT to DMAB using an individual Ag ND catalyst has been illustrated using spatial Raman *** result is direct evidence that the PDCR efficiency has a positive correlation with plasmon-induced electromagnetic field ***,time-dependent surface-enhanced Raman scattering(SERS)experiments reveal that the PDCR of 4-NBT to DMAB is *** discovery in this research will aid to improve the PDCR performance and modulate the catalysis reaction for a high reduction of 4-NBT in industrial.

关键词： plasmon photocatalysis 4-nitro-benzenthiol(4-NBT) surface-enheanced Raman scattering(SERS)