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| 1 | The Recent Technological Development of Intelligent Mining in China显示文摘 | Jinhua Wang Zenghua Huang | 2017 | Engineering2017，3，4： | 27 |
| 2 | Delamination damage detection of laminated composite beams using air-coupled ultrasonic transducers显示文摘Air-coupled ultrasonic transducers are used to generate and receive Lamb waves in quasi-isotropic laminated composite beams for delamination detection. The influence of incident angle on the excited mode is studied. Numerical calculation and experimental results show that a pure Lamb wave mode can be generated if the transmitting transducer is oriented at a specific angle, and the receiving transducer can either be oriented to detect the same mode as that generated by the transmitter or to detect another mode generated by mode conversion at a defect. A three-dimensional finite element model is created to predict the interaction of Lamb waves with delamination, and some unique mechanisms of interaction between A0 mode Lamb waves and delamination are revealed in detail. The experimental results obtained on laminated composite beam using air-coupled ultrasonic transducers are well in accordance with finite element simulation results. Research results show that air-coupled ultrasonic guided waves can be used for delamination damage detection effectively in laminated composite beams. | LIU ZengHua YU HongTao HE CunFu WU Bin | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，7： | 16 |
| 3 | DETECTION OF LONGITUDINAL DEFECT IN PIPES USING TORSIONAL MODES显示文摘多模式并且在管子中驱散扭力的模式的特征 reinvestigated 理论上并且试验性地。根本频率,最低扭力的模式的阶段速度和组速度(0,1 ) 7 不变、相等砍波浪速度。7 (0,1 ) 模式根本频率是最快的扭力的模式。在实验, 7 (0,1 ) 模式在用 9 厚度的管子中激动、收到砍颤动模式压电的陶器的元素。而且, 4 m 的一个人工的纵的缺点长管子用 7 被检测(0,1 ) 模式 at50 kHz。它为纵的缺点察觉在是可行的试验性的结果表演用 7 尖叫(0,1 ) 超声的指导波浪的模式。 | LIU Zenghua WU Bin HE Cunfu YANG Shiming WANG Xiuyan | 2006 | Chinese Journal of Mechanical Engineering2006，19，1： | 7 |
| 4 | Temperature Dependence of Ultrasonic Longitudinal Guided Wave Propagation in Long Range Steel Strands显示文摘Ultrasonic guided wave inspection is an effective non-destructive testing method which can be used for stress level evaluation in steel strands.Unfortunately the propagation velocity of ultrasonic guided waves changes due to temperature shift making the prestress measurement of steel strands inaccurate and even sometimes impossible.In the course of solving the problem,this paper reports on quantitative research on the temperature dependence of ultrasonic longitudinal guided wave propagation in long range steel strands.In order to achieve the generation and reception of a chosen longitudinal mode in a steel strand with a helical shaped surface,a new type of magnetostrictive transducer was developed,characterized by a group of thin clips and three identical permanent magnets.Excitation and reception of ultrasonic guided waves in a steel strand were performed experimentally.Experimental results shows that in the temperature range from-4 ℃ to 34 ℃,the propagation velocity of the L(0,1) mode at 160 kHz linearly decreased with increasing temperature and its temperature dependent coefficient was 0.90(m·s-1 ·(℃)-1) which is very close to the theoretical prediction.The effect of dimension deviation between the helical and center wires and the effect of the thermal expansion of the steel strand on ultrasonic longitudinal guided wave propagation were also analyzed.It was found that these effects could be ignored compared with the change in the material mechanical properties of the steel strands due to temperature shift.It was also observed that the longitudinal guided wave mode was somewhat more sensitive to temperature changes compared with conventional ultrasonic waves theoretically.Therefore,it is considered that the temperature effect on ultrasonic longitudinal guided wave propagation in order to improve the accuracy of stress measurement in prestressed steel strands.Quantitative research on the temperature dependence of ultrasonic guided wave propagation in steel strands provides an important basis for the compensation of temperature effects in stress measurement in steel strands by using ultrasonic guided wave inspection. | LIU Zenghua ZHAO Jichen WU Bin HE Cunfu | 2011 | Chinese Journal of Mechanical Engineering2011，24，3： | 6 |
| 5 | The shortest period of coal spontaneous combustion on the basis of oxidative heat release intensity显示文摘It’s necessary to forecast the shortest spontaneous combustion period for preventing and controlling the coal spontaneous combustion.During the experimental process,a calculating model of the SSCP is established on the basis of the oxidative heat release intensity and thermal capacity at different temperatures.According to the basic parameters of spontaneous combustion,heat of water evaporation and gas desorption,the SSCPs of different coals are further predicted.Finally,this study analyzed the relationships of the SSCP and the judging indexes of the self-ignite tendency.The result shows that the SSCP non-linearly increases with the decrease of dynamic oxygen adsorption and increase of activation energy.Compared with the practical fire situation of mine,this reliable method can meet the actual requirement of mine production. | Yang Yongliang Li Zenghua Hou Shisong Gu Fanjun Gao Siyuan Tang Yibo | 2014 | International Journal of Mining Science and Technology2014，24，1： | 5 |
| 6 | Hydrodynamic Links between Shallow and Deep Mineralization Systems and Implications for Deep Mineral Exploration显示文摘Deep mineral exploration is increasingly important for finding new mineral resources but there are many uncertainties.Understanding the factors controlling the localization of mineralization at depth can reduce the risk in deep mineral exploration.One of the relatively poorly constrained but important factors is the hydrodynamics of mineralization.This paper reviews the principles of hydrodynamics of mineralization,especially the nature of relationships between mineralization and structures,and their applications to various types of mineralization systems in the context of hydrodynamic linkage between shallow and deep parts of the systems.Three categories of mineralization systems were examined,i.e.,magmatic-hydrothermal systems,structurally controlled hydrothermal systems with uncertain fluid sources,and hydrothermal systems associated with sedimentary basins.The implications for deep mineral exploration,including potentials for new mineral resources at depth,favorable locations for mineralization,as well as uncertainties,are discussed. | CHI Guoxiang XU Deru XUE Chunji LI Zenghua Patrick LEDRU DENG Teng WANG Yumeng SONG Hao | 2022 | Acta Geologica Sinica(English Edition)2022，96，1： | 5 |
| 7 | PROPAGATION CHARACTERISTICS OF HIGH ORDER LONGITUDINAL MODES IN STEEL STRANDS AND THEIR APPLICATIONS显示文摘在七电线的钢海滨的超声的指导波浪的纵的模式理论上并且试验性地被调查的高顺序的繁殖特征。根据这些分析结果,合适的纵的模式在钢海滨为缺点察觉被选择。为在 17.80 公里的螺旋状、中央的电线的分散曲线名字的直径七电线的钢海滨数字地第一被获得,并且高顺序的纵的模式的繁殖特征例如波浪结构,变细和分散,被分析。在实验,在不同高频率的超声的指导波浪的信号在由使用一样的单个压电的变换器的钢海滨的一结束激动、收到。在收到的信号的纵的模式的鉴定基于短时间 Fourier 变换被完成。而且,拨出 L (0, 5 ) 在 2.54 MHz 的模式为在钢海滨的一根螺旋状的电线中检测一个人工的缺点被选择。结果显示出在高频率的纵的模式与其精力主要在电线的中心宣传的低分散和变细变化的那份高订单能在长期的钢海滨被用于缺点察觉。 | Zenghua Liu Su Liu Bin Wu Yinong Zhang Cunfu He | 2008 | Acta Mechanica Solida Sinica2008，21，6： | 5 |
| 8 | Regulatory effect of salicylic acid and methyl jasmonate supplementation on ergosterol production in Hericium erinaceus mycelia显示文摘We evaluated the biomass and ergosterol content of Hericium erinaceus mycelium, and extracellular enzyme activities in H. erinaceus liquid culture following salicylic acid(SA) and methyl jasmonic acid(Me JA)supplementation. The optimal SA concentration was100 lmoláL-1, where the highest ergosterol content of 2.33 mgág-1was obtained following 6-day cultivation with100 lmoláL-1SA supplementation, and which was significantly higher than the unsupplemented control(p \ 0.01). Following 4-day supplementation with50 lmoláL-1Me JA, the highest ergosterol content obtained was 1.988 mgág-1, which was 25.8 % higher than the unsupplemented control. Our data indicate that SA and Me JA supplementation improves ergosterol content in H.erinaceus mycelium. | Xiaodong Dai Yaguang Zhan Jiechi Zhang Piqi Zhang Zenghua Han Qingfang Ma Xianghui Kong Jianing Liu Yinpeng Ma | 2015 | Journal of Forestry Research2015，26，1： | 5 |
| 9 | Investigation of PM_(2.5) pollution during COVID-19 pandemic in Guangzhou,China显示文摘The COVID-19 pandemic has raised awareness about various environmental issues,includ-ing PM_(2.5) pollution.Here,PM_(2.5) pollution during the COVID-19 lockdown was traced and an-alyzed to clarify the sources and factors influencing PM_(2.5) in Guangzhou,with an emphasis on heavy pollution.The lockdown led to large reductions in industrial and traffic emissions,which significantly reduced PM_(2.5) concentrations in Guangzhou.Interestingly,the trend of PM_(2.5) concentrations was not consistent with traffic and industrial emissions,as minimum concentrations were observed in the fourth period(3/01-3/31,22.45 μg/m^(3))of the lockdown.However,the concentrations of other gaseous pollutants,e.g.,SO_(2),NO_(2) and CO,were corre-lated with industrial and traffic emissions,and the lowest values were noticed in the sec-ond period(1/24-2/0_(3))of the lockdown.Meteorological correlation analysis revealed that the decreased PM_(2.5) concentrations during COVID-19 can be mainly attributed to decreased in-dustrial and traffic emissions rather than meteorological conditions.When meteorological factors were included in the PM_(2.5) composition and backward trajectory analyses,we found that long-distance transportation and secondary pollution offset the reduction of primary emissions in the second and third stages of the pandemic.Notably,industrial PM_(2.5) emis-sions from western,southern and southeastern Guangzhou play an important role in the formation of heavy pollution events.Our results not only verify the importance of control-ling traffic and industrial emissions,but also provide targets for further improvements in PM_(2.5) pollution. | Luyao Wen Chun Yang Xiaoliang Liao Yanhao Zhang Xuyang Chai Wenjun Gao Shulin Guo Yinglei Bi Suk-Ying Tsang Zhi-Feng Chen Zenghua Qi Zongwei Cai | 2022 | Journal of Environmental Sciences2022，34，5： | 2 |
| 10 | Research Advances of Epidemiological Characteristics and Diagnosis Technology of Rabies Virus显示文摘Rabies is a zoonosis caused by rabies virus,which has been characterized by infection of central nervous system. Rabies virus,which can cause fatal infections in humans and other mammals,has the characteristic of neurotropism,and the mortality caused by rabies is almost 100%. Routine diagnosis of rabies include clinical symptoms,while a final diagnosis depends on laboratory diagnostic methods,such as etiological diagnosis,serological diagnosis and molecular biological diagnosis. As a zoonotic infectious disease,rabies presents a global distribution situation,and the deaths caused by rabies virus infection in China ranks the second place in the world. Therefore,strengthening the recognition of disease etiology and epidemiology is very important to comprehensive prevention measures of rabies. The author mainly introduced the research progress on pathogen,epidemiology and diagnosis technology of rabies virus at home and abroad. In addition,the advantages and disadvantages of various methods were compared respectively,in order to provide a scientific basis for further study and rapid diagnosis of rabies. | Sun Yu Ma Shichun Wang Xiaoying Wei Wei Su Zenghua Ma Jihong Xie Qiao Xu Yi Dong Hao Shi Jianzhong | 2015 | Animal Husbandry and Feed Science2015，7，4： | 2 |
| 11 | Organic–inorganic hybrid perovskite scintillators for mixed field radiation detection显示文摘Sensitive and fast detection of neutrons and gamma rays is vital for homeland security,high-energy physics,and proton therapy.Fast-neutron detectors rely on light organic scintillators,andγ-ray detectors use heavy inorganic scintillators and semiconductors.Efficient mixed-field detection using a single material is highly challenging due to their contradictory requirements.Here we report hybrid perovskites(C_(8)H_(12)N)_(2)Pb(Br_(0.95)Cl_(0.05))_(4)that combine light organic cations and heavy inorganic skeletons at a molecular level to achieve unprecedented performance for mixed-field radiation detection.High neutron absorption due to a high density of hydrogen,strong radiative recombination within the highly confined[PbX_(6)]^(4-)layer,and sub-nanometer distance between absorption sites and radiative centers,enable a light yield of 41000 photons/MeV,detection pulse width of 2.97 ns and extraordinary linearity response toward both fast neutrons andγ-rays,outperforming commonly used fast-neutron scintillators.Neutron energy spectrum,time-of-flight based fast-neutron/γ-ray discrimination and neutron yield monitoring were all successfully achieved using(C_(8)H_(12)N)_(2)Pb(Br_(0.95)Cl_(0.05))_(4)detectors.We further demonstrate the monitoring of reaction kinetics and total power of a nuclear fusion reaction.We envision that molecular hybridized scintillators open a new avenue for mixed-field radiation detection and imaging. | Mengling Xia Guangda Niu Linyue Liu Runlong Gao Tong Jin Pengying Wan Weicheng Pan Xianpeng Zhang Zuoxiang Xie Sam Teale Zenghua Cai Jiajun Luo Shan Zhao Haodi Wu Shiyou Chen Zhiping Zheng Qingguo Xie Xiaoping Ouyang Edward HSargent Jiang Tang | 2022 | InfoMat2022，4，9： | 2 |
| 12 | Quantitative Rectangular Notch Detection of Laser-induced Lamb Waves in Aluminium Plates with Wavenumber Analysis显示文摘It is difficult to quantitatively detect defects by using the time domain or frequency domain features of Lamb wave signals due to their dispersion and multimodal characteristics.Therefore,it is important to discover an intrinsical parameter of Lamb waves that could be used as a damage sensitive feature.In this paper,quantitative defect detection in aluminium plates is carried out by means of wavenumber analysis approach.The wavenumber of excited Lamb wave mode is a fixed value,given a frequency,a thickness and material properties of the target plate.When Lamb waves propagate to the structural discontinuity,new wavenumber components are created by abrupt wavefield change.The new wavenumber components can be identified in the frequency-wavenumber domain.To estimate spatially dependent wavenumber values,a short-space two-dimensional Fourier transform(FT)method is presented for processing wavefield data of Lamb waves.The results can be used to determine the location,size and depth of rectangular notch.The analysis techniques are demonstrated using simulation examples of an aluminium plate with a rectangular notch.Then,the wavenumber analysis method is applied to simulation data that are obtained through a range of notch depths and widths.The results are analyzed and rules of the technique with regards to estimating notch depth are determined.Based on simulation results,guidelines for using the technique are developed.Finally,experimental wavefield data are obtained in aluminium plates with rectangular notches by a full noncontact transceiving method,i.e.,laser-laser method.Band-pass filtering combined with continuous wavelet transform is used to extract a certain frequency component from the full laser-induced wavefield with wide band.Shortspace two-dimensional FT method is used for further processing full wavefield data at a certain frequency to estimate spatially dependent wavenumber values.The consistency of simulation and experimental results shows the effectiveness of proposed wavenumber method for quantitative rectangular notch detection. | Liu Zenghua Feng Xuejian He Cunfu Wu Bin | 2018 | Transactions of Nanjing University of Aeronautics and Astronautics2018，35，2： | 2 |
| 13 | The propagation of coupled Lamb waves in multilayered arbitrary anisotropic composite laminates显示文摘 | He Cunfu Liu Hongye Liu Zenghua Wu Bin | 2013 | Journal of Sound and Vibration2013，，： | 1 |
| 14 | A new species of the genus Parasetigena from China (Diptera:Tachinidae)显示文摘 | MAO Zenghua CHAO Chienming | 1990 | Sinozoologia1990，，7： | 1 |
| 15 | Nafion/SiO 2 hybrid membrane for vanadium redox flow battery显示文摘 | Xi Jingyu Wu Zenghua Qiu Xinping | 2007 | J Power Sources2007，166，： | 1 |
| 16 | Oxidation Behaviors of C-ZrB_2-SiC Composite at 2100℃ in Air and O_2显示文摘The oxidation behaviors of graphite and ZrB_2-SiC modified graphite composite were investigated at 2100℃ in1X105 Pa air and 0.2X105 Pa O2. The oxidation tests were conducted in an induction heating furnace. The oxidation of these two materials followed the linear rate law. The determined radius loss rates of graphite and C-ZrB_2-Si C at 2100℃ were 2.18X10-2and 1.05X10-2%/s in 1X105 Pa air, and 3.23X10 2 and 2.21X10 2%/s in 0.2X105 Pa O2, respectively. The incorporation of ZrB2 and SiC decreased remarkably the oxidation rate of graphite because the oxide scale formed on the sample surface during oxidation helps in reducing the exposed surface area of the underneath substrate. In two different atmospheres with the same oxygen partial pressure, both graphite and ZrB_2-SiC experienced more severe oxidation at 2100℃ in0.2X105 Pa O2than in 1X105 Pa air. The oxidation rate-controlling step for graphite and ZrB_2-SiC was proposed to be the inward diffusion of oxygen through the boundary layer and through the pores in the oxide scale, respectively. A model based on diffusion theory was established to discuss the effect of the total gas pressure on their oxidation behaviors. | Zhongwei Zhang Cewen Nan Jingjun Xu Zenghua Gao Meishuan Li Junshan Wang | 2014 | Journal of Materials Science & Technology2014，30，12： | 1 |
| 17 | Nafion/organic silica modified TiO 2 composite membrane for vanadium redox flow battery via in situ sol–gel reactions显示文摘 | Xiangguo Teng Yongtao Zhao Jingyu Xi Zenghua Wu Xinping Qiu Liquan Chen | 2009 | Journal of Membrane Science2009，，1： | 1 |
| 18 | Nafion/SiO 2 hybrid membrane for vanadium redox flow battery显示文摘 | Jingyu Xi Zenghua Wu Xinping Qiu Liquan Chen | 2007 | Journal of Power Sources2007，，2： | 1 |
| 19 | Microstructures and Key Properties of Mechanically Deposited Zn-Al Coatings显示文摘Zn-Al coatings can provide protection to exposed steel parts in most environments. For this reason,the investigation of Zn-Al coatings become very popular in recent years. In order to study the microstructures and properties of mechanically deposited Zn-Al coating,zinc powders and aluminum powders were used to deposit Zn-Al coating by mechanical plating. The microstructures,phase constitutes and compositions of the coating were observed and analyzed with optical microscopy (OM),scanning electron microscopy(SEM),X-ray diffraction(XRD) and X-ray energy-dispersive spectroscopy(EDS). The results of observation show that the coating consists of almost spherically shaped zinc particles point contacting with each other; the coatings are composed of zinc particles,aluminum particles,interstice,and tin; extra fine zinc powders and some smaller interspersed inclusions are positioned in the interstices. Porosity and thickness of the coating were tested by ferroxyl test and magnetic method. The corrosion resistance of coatings was studied by neutral salt spraying test(NSS) ,immersion test and electrochemical polarization. It is found that the thickness of the coating dose lacks uniformity,with an uneven thickness distribution and an average variation of approximately 2-5μm; the coating can afford cathodic protection to the steel substrate; the corrosion resistance of Zn-Al coatings is better than that of the mechanically plated zinc coatings with same thickness. These conclusions can be applied to improve anti-corrosion performance by mechanically deposit Zn-Al coatings. | WANG Shengmin HE Mingyi ZHAO Xiaojun PENG Zenghua LIU Li | 2009 | Chinese Journal of Mechanical Engineering2009，22，4： | 1 |
| 20 | Studies on the Low-Temp Oxidation of Coal Containing Organic Sulfur and Corresponding Model Compounds显示文摘 | Zhang Lanjun Li Zenghua Li Jinhu | 2015 | Molecules2015，20，22： | 1 |
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