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| 1 | Experimental measurement of the electrical conductivity of single crystal olivine at high temperature and high pressure under different oxygen fugacities显示文摘At 1.0-4.0 GPa and 1123-1473 K and under oxygen fugacity-controlled conditions (Ni + NiO, Fe + Fe3O4, Fe + FeO and Mo+ M0O2 buffers), a YJ-3000t Model six-anvil solid high-pressure apparatus and a Sarltron-1260 Impedance/Gain-Phase analyzer were employed to conduct an in situ measurement of the electrical conductivity of single crystal olivine. Experimental results showed that: (1) within the range of experimentally selected frequencies (103-106 Hz), the electrical conductivity of the sample is of great dependence on the frequency; (2) with the rise of temperature ( T), the electrical conductivity (σ) will increase, and the Arrenhius linear relationship is established between lgσ and 1/T; (3) under the control of oxygen buffer Fe+ Fe3O4, with the rise of pressure, the electrical conductivity tends to decrease whereas the activation enthalpy and independent-of-temperature preexponential factor tend to increase, with the activation energy and activation volume of the sample estimated at (1. 25 ± 0.08) eV and (0.105 ±0.025) cm3/mol, respectively; (4) under given pressure and temperature conditions, the electrical conductivity tends to increase whereas the activation energy tends to decrease with increasing oxygen fugacity; and ( 5) the mechanism of electrical conduction of small polarons can provide insight into the behavior of electrical conduction of olivine under high pressure and high temperature. | DAI Lidong LI Heping LIU Congqiang CUI Tongdi SHAN Shuangming YANG Changjun LIU Qingyou DENG Heming | 2006 | Progress in Natural Science:Materials International2006，16，4： | 9 |
| 2 | Fiber Bragg grating monitors for thermal and stress of the composite insulators in transmission lines显示文摘Running composite insulators are prone to failure due to their harsh surrounding work environment, which directly affects the safe operation of transmission lines. This paper puts forward the method of using fiber Bragg grating(FBG) as the monitors to parameters correlated with thermal and stress of the composite insulators in transmission lines at working status. Firstly, monitoring points are found out by the mechanical test on composite insulator samples. Secondly, based on the monitoring theory, this paper introduces the feasibility design frame of the composite insulator with FBG implanted in the rod and the online monitor system. At last, it describes applications of this monitor system in the field of transmission lines. | Heming Deng Wei Cai You Song Jinsong Liu Christopher Redman Qiandong Zhuang | 2018 | Global Energy Interconnection2018，1，3： | 6 |
| 3 | Preparation of nitrogen doped clews-like carbon materials and their application as the electrode in supercapacitor显示文摘In this work, nitrogen doped clews-like carbon materials were successfully fabricated through hydrothermal polymerization method, followed by post treatment that integrated the carbonization,activation and post-nitrogen doping into one process. This preparation method can form particular hierarchical porous structure without using any sacrificial templates. The experimental results show that the nitrogen doped clews-like hierarchical porous carbon materials possess a relatively high specific surface area of 815 m^2/g with the nitrogen content of 10.58 at%. The electrochemical properties show that the resulting sample delivers 258 F/g at a 0.5 A/g and excellent capacity retention of 79% at 20 A/g. After conducting 10,000 charge-discharge cycles at 10 A/g, the capacitance retention of 98.3% is achieved.These intriguing results demonstrate that the obtained nitrogen doped clews-like carbon materials will be promising electrode materials for supercapacitor and other energy storage devices. | Shengrui Chen Jiyuan Liang Jinxing Zhao Haifeng Li Yan Liu Heming Deng Chang Liu Shun Tang Yuan-Cheng Cao | 2019 | Chinese Chemical Letters2019，30，3： | 2 |
| 4 | Concurrent chemoradiotherapy in locally advanced nasopharyngeal carcinoma: A treatment paradigm also applicable to patients in Southeast Asia显示文摘 | Heming Lu Luxing Peng Xianbin Yuan Yanrong Hao Zhiping Lu Jiaxin Chen Jinjian Cheng Shan Deng Junzhao Gu Qiang Pang Jian Qin | 2009 | Cancer Treatment Reviews2009，，4： | 1 |
| 5 | Online measurement of equivalent salt deposit density by using optical technology显示文摘 | CAI Wei DENG Heming ZHOU Guohua | 2013 | IEEE Trans on Dielectrics and Electrical Insulation2013，20，2： | 1 |
| 6 | Effects of Macroparticle Sizes on Two-phase Mixture Discharge Under DC Voltage显示文摘随着放电等离子体在各个领域应用的不断扩大,两相体放电问题越来越重要,需要解决的基础问题之一即是两相体中放电发生、发展的特点和规律及影响因素。采用21种不同的介质材料研究直流电压下两相体放电的效应,由实验结果可知介质的介电常数对放电路径基本无影响,而介质颗粒的粒径大小对两相体放电路径的选择起决定作用,即粒径效应。此外,对颗粒介电常数、电场畸变、光电离作用和颗粒荷电等几个方面进行研究,可知两相体放电的粒径效应与颗粒粒径大小紧密相关。 | YAO Wenjun HE Zhenghao DENG Heming WANG Guoli ZHANG Man MA Jun LI Jin YE Qizheng HU Hui | 2012 | 中国电机工程学报2012，32，13： | 1 |
| 7 | Concurrent chemoradiotherapy in locally advanced nasopharyngeal carcinoma: A treatment paradigm also applicable to patients in Southeast Asia显示文摘 | Heming Lu Luxing Peng Xianbin Yuan Yanrong Hao Zhiping Lu Jiaxin Chen Jinjian Cheng Shan Deng Junzhao Gu Qiang Pang Jian Qin | 2009 | Cancer Treatment Reviews2009，，： | 1 |
| 8 | Phenomena and Mechanism of Positive Pulsed Discharge Branching in Two-phase Mixtures显示文摘Discharge branching is a general phenomenon in atmospheric-pressure air,dense gases,and two-phase mixtures(TPMs).In this work,an ultraviolet imaging device is utilized to investigate the branching of positive pulsed discharges in TPMs.Comparison among the captured images indicates that the branching is caused by the voltages and the macropartilces in the discharge channels combining together.The interaction of macroparticles with ions,electrons or photons is one reason for the branching behavior of pulsed discharges.The generation of electrons at the discharge front closely relates to the work function of dielectric macroparticles,which is a key parameter influencing the electron-emission ability of macroparticle surfaces.The electric field alteration under various applied voltage in TPMs,which is calculated by a two-dimension finite element method,is the other reason for the guiding effect of macroparticles on the streamers compared with in the air. | DENG Heming ZHANG Guangzhou XU Yuhang HE Zhenghao ZHU Hongzhao LIANG Wei | 2013 | 高电压技术2013，39，9： | 0 |
| 9 | Electrical transport properties of focused ion beam lithography Au contacts on PbTiO_(3)nanorods显示文摘PbTiO_(3)nanorods with tetragonal phase were synthesized by hydrothermal method and heat treatment,and temperature-dependent electrical transport properties of individual PbTiO_(3)nanorod were investigated.The results show that the conductivities of PbTiO_(3)nanorods are gradually enhanced with temperature increasing from 77.4 to 295 K,and exhibit the typical nonlinear Ⅰ–Ⅴ char-acteristics.The barrier height between Au electrode and nanorod is reduced from 0.137 to 0.088 eV with increasing bias from 0.2 to 1 V.The corresponding values of thermal activation energies are 0.172 and 0.06 eV below the conduction band for 180–295 and 77.4–180 K,respectively.This semiconductor-like behavior may result from the larger number of surface defects or localized states in the amorphorized PbTiO_(3). | Jian Wang Bin Chen Heming Deng Xiaojun Zhang Xiaoguang Li Yuancheng Cao Yongming Hu | 2019 | Journal of Advanced Dielectrics2019，9，4： | 0 |
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