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| 1 | Effects of particle composition and environmental parameters on catalytic hydrodechlorination of trichloroethylene by nanoscale bimetallic Ni-Fe显示文摘Catalytic nickel was successfully incorporated into nanoscale iron to enhance its dechlorination efficiency for trichloroethylene(TCE), one of the most commonly detected chlorinated organic compounds in groundwater. Ethane was the predominant product. The greatest dechlorination efficiency was achieved at 22 molar percent of nickel. This nanoscale Ni-Fe is poorly ordered and inhomogeneous; iron dissolution occurred whereas nickel was relatively stable during the 24-hr reaction. The morphological characterization provided significant new insights on the mechanism of catalytic hydrodechlorination by bimetallic nanoparticles. TCE degradation and ethane production rates were greatly affected by environmental parameters such as solution pH, temperature and common groundwater ions. Both rate constants decreased and then increased over the pH range of 6.5 to 8.0, with the minimum value occurring at pH 7.5. TCE degradation rate constant showed an increasing trend over the temperature range of 10 to 25?C. However, ethane production rate constant increased and then decreased over the range, with the maximum value occurring at 20?C. Most salts in the solution appeared to enhance the reaction in the first half hour but overall they displayed an inhibitory effect. Combined ions showed a similar effect as individual salts. | Jianjun Wei Yajing Qian Wenjuan Liu Lutao Wang Yijie Ge Jianghao Zhang Jiang Yu Xingmao Ma | 2014 | Journal of Environmental Sciences2014，26，5： | 9 |
| 2 | Influence of Minimum Quantity Lubrication Parameters on Tool Wear and Surface Roughness in Milling of Forged Steel显示文摘The minimum quantity of lubrication(MQL) technique is becoming increasingly more popular due to the safety of environment.Moreover,MQL technique not only leads to economical benefits by way of saving lubricant costs but also presents better machinability.However,the effect of MQL parameters on machining is still not clear,which needs to be overcome.In this paper,the effect of different modes of lubrication,i.e.,conventional way using flushing,dry cutting and using the minimum quantity lubrication(MQL) technique on the machinability in end milling of a forged steel(50CrMnMo),is investigated.The influence of MQL parameters on tool wear and surface roughness is also discussed.MQL parameters include nozzle direction in relation to feed direction,nozzle elevation angle,distance from the nozzle tip to the cutting zone,lubricant flow rate and air pressure.The investigation results show that MQL technique lowers the tool wear and surface roughness values compared with that of conventional flood cutting fluid supply and dry cutting conditions.Based on the investigations of chip morphology and color,MQL technique reduces the cutting temperature to some extent.The relative nozzle-feed position at 120°,the angle elevation of 60° and distance from nozzle tip to cutting zone at 20 mm provide the prolonged tool life and reduced surface roughness values.This fact is due to the oil mists can penetrate in the inner zones of the tool edges in a very efficient way.Improvement in tool life and surface finish could be achieved utilizing higher oil flow rate and higher compressed air pressure.Moreover,oil flow rate increased from 43.8 mL?h to 58.4 mL?h leads to a small decrease of flank wear,but it is not very significant.The results obtained in this paper can be used to determine optimal conditions for milling of forged steel under MQL conditions. | YAN Lutao YUAN Songmei LIU Qiang | 2012 | Chinese Journal of Mechanical Engineering2012，25，3： | 4 |
| 3 | Effects of cooling air temperature on cryogenic machining of Ti-6A1-4V alloy显示文摘 | YUAN Songmei YAN Lutao LIU Weidong | 2011 | Journal of Materials Processing Technology2011，211，： | 1 |
| 4 | Removal of NOx and SO2 in flue gas by corona discharge reactor with water film 显示文摘 | Dong Limin Sheng Shouguo Liu Lutao | 2002 | IEEE Annual Report Conference on Electrical Insulation and Dielectric Phenomena2002，，： | 1 |
| 5 | Up-regulation of miR-182 expression in colorectal cancer tissues and its prognostic value显示文摘 | Hui Liu Lutao Du Zhihua Wen Yongmei Yang Juan Li Lili Wang Xin Zhang Yimin Liu Zhaogang Dong Wei Li Guixi Zheng Chuanxin Wang | 2013 | International Journal of Colorectal Disease2013，，5： | 1 |
| 6 | MiR-429 is an independent prognostic factor in colorectal cancer and exerts its anti-apoptotic function by targeting SOX2显示文摘 | Juan Li Lutao Du Yongmei Yang Chuanxin Wang Hui Liu Lili Wang Xin Zhang Wei Li Guixi Zheng Zhaogang Dong | 2013 | Cancer Letters2013，，1： | 1 |
| 7 | Fast Estimation of Frequency and 2-D Doas for Cylindrical Conformal Array Antenna Using State-space and Propagator Method显示文摘 | Si Weijian Wan Liangtian Liu Lutao | 2013 | Progress in Electromagnetics Research2013，137，： | 1 |
| 8 | Preparation and Evaluations of Ibuprofen Thermosensitive in situ Gel显示文摘[Objectives] To prepare Ibuprofen-β-CD for thermosensitive in situ gel administration to achieve a slow drug release. [Methods]By saturation solution process,the best inclusion technology was screened out with orthogonal design. [Results]The prescription of in situ gel contained ibuprofen-β-CD complex,poloxamer P407,P188,and HPMCK4M( w/v 10%,18%,3%,and 0. 5%). The gelation temperature of ibuprofen gel was 34. 6 ± 0. 3℃. The viscosity of ibuprofen gel increased significantly above 35℃ and showed semi-solid attribute. [Conclusions] The release of ibuprofen from in situ gel was slow and stable in 96 h,demonstrated a proximate zero order release between 24 h and 96 h. | Miao YU Shangcong HAN Jialing DAI Jiao LIU Chen WEI Yitong LI Lutao JIANG Yong SUN | 2017 | Medicinal Plant2017，8，2： | 0 |
| 9 | Method for determining number of coherent signals in the presence of colored noise显示文摘The approach of estimating the number of signals based on information theoretic criteria has good performance in the assumption of white noise, but it always leads to false estimation of the coherent sources in colored noise. An approach combining the combined information theoretic criteria and eigenvalue correction, is presented to determine number of signals. The method uses maximum likelihood (ML) and information theoretic criteria to estimate coherent signals alternately, then eliminate the inequality of the eigenvalues caused by colored noise by correcting the noise eigenvalues. The computer simulation results prove the effective performance of the method. | Jiaqi Zhen, Xicai Si, and Lutao Liu College of Information & Communication Engineering, Harbin Engineering University, Harbin 150001, P. R. China | 2010 | Journal of Systems Engineering and Electronics2010，21，1： | 0 |
| 10 | Improvement of Microstructure and Mechanical Properties of Rapid Cooling Friction Stir-welded A1050 Pure Aluminum显示文摘Two-mm thick A1050 pure aluminum plates were successfully joined by conventional and rapid cooling friction stir welding(FSW), respectively. The microstructure and mechanical properties of the welded joints were investigated by electron backscatter diffraction characterization, Vickers hardness measurements, and tensile testing. The results showed that liquid CO_(2) coolant significantly reduced the peak temperature and increased the cooling rate, so the rapidly cooled FSW joint exhibited fine grains with a large number of dislocations. The grain refinement mechanism of the FSW A1050 pure aluminum joint was primarily attributed to the combined effects of continuous dynamic recrystallization, grain subdivision, and geometric dynamic recrystallization. Compared with conventional FSW, the yield strength, ultimate tensile strength, and fracture elongation of rapidly cooled FSW joint were significantly enhanced, and the welding efficiency was increased from 80% to 93%. The enhanced mechanical properties and improved synergy of strength and ductility were obtained due to the increased dislocation density and remarkable grain refinement. The wear of the tool can produce several WC particles retained in the joint, and the contribution of second phase strengthening to the enhanced strength should not be ignored. | 许楠 LIU Lutao SONG Qining ZHAO Jianhua BAO Yefeng | 2024 | Journal of Wuhan University of Technology(Materials Science)2024，39，1： | 0 |
| 11 | Gain-switched watt-level thulium-doped fiber laser and amplifier operating at 1.7μm显示文摘A 1.7μm gain-switched thulium-doped all-fiber laser with a master oscillator power amplifier(MOPA)configuration,utilizing a bandpass fiber filter and a 1550 nm erbium/ytterbium-codoped fiber MOPA,is demonstrated.The influences of pump pulse parameters(repetition rate and pulse duration)and laser cavity structures(ring and linear)on the laser performances were experimentally investigated.To the best of our knowledge,the power quenching and drop were observed in the 1.7μm gain-switched thulium-doped fiber lasers for the first time,resulting from the mode-locked-resembling operation and nonlinear effects.Moreover,the fiber ring-cavity laser was more stable than the linear-cavity laser in the time domain and power.Finally,a laser with a maximum average power of 1.687 W,a slope efficiency of 19.7%,a single-pulse energy of 16.87μJ,a pulse width of 425 ns,a repetition rate of 100 kHz and a peak power of 39.69 W was obtained. | Yang Xiao Xusheng Xiao Lutao Liu Haitao Guo | 2022 | High Power Laser Science and Engineering2022，10，6： | 0 |
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