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ENABLING technolOGIES FOR AGILE MARITIME COMMUNICATION NETWORKS

China Communications 2020年第3期17卷 I0001-I0003页

作者： Wei Feng Bin Lin Yunfei Chen Cheng-Xiang Wang Shengming Jiang Yuguang Fang Tsinghua Univ Dept Elect Engn Beijing Peoples R China Dalian Maritime Univ Dept Informat Sci & Technol Dalian Peoples R China George Washington Univ Washington DC USA Univ Warwick Coventry W Midlands England Hamburg Univ technol Hamburg Germany Siemens AG Mobile Phones Munich Germany Univ Agder Grimstad Norway Heriot Watt Univ Edinburgh Midlothian Scotland Southeast Univ Nanjing Peoples R China Purple Mt Labs Nanjing Peoples R China IET London England Clarivate Analyt Philadelphia PA USA Shanghai Maritime Univ Coll Informat Engn Shanghai Peoples R China Nanjing Petr Transportat Co Nanjing Peoples R China Hong Kong Univ Sci & technol Dept Elect & Elect Engn Hong Kong Peoples R China Hong Kong Univ Sci & technol Comp Sci Dept Hong Kong Peoples R China Natl Univ Singapore Ctr Wireless Commun Singapore Singapore Lab Inst Infocomm res I2R Singapore Singapore Univ Glamorgan Pontypridd M Glam Wales South China Univ technol Guangzhou Guangdong Peoples R China Univ Florida Dept Elect & Comp Engn Gainesville FL 32611 USA IEEE Piscataway NJ USA AAAS Washington DC USA

With the rapid development of maritime activities,there has been a growing demand for high data rate and ultra-reliable maritime ***,maritime communication services are provided mostly by maritime *** some places,shore and island-based base stations(BSs)can also be built to extend the coverage of terrestrial networks,providing the fourth-generation(4G)or even the fifth-generation(5G)*** further build up communication networks over the ocean for better coverage,unmanned aerial vehicles(UAVs)-aided and ship-borne BSs can be exploited to serve as supplementary relaying nodes.

关键词： communication networks island

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Study on performance of transition metal-doped catalysts for DeNOx at low-temperature

Study on performance of transition metal-doped catalysts for...

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第八届中国功能材料及其应用学术会议

作者： QIAO Jin-shuo ZHANG Cui-ya YIN Xiao-ju SUN Ke-ning Beijing Key Laboratory for Chemical Power Source and green Catalysis School of Chemical Engineering and the EnvironmentBeijing Institute of Technology Academy of Fundamental and Interdisciplinary Sciences Harbin Institute of Technolygy

ISBN: (纸本)9783037859698

Mn-Ce based catalysts doped with transition metalwere synthesized via a sol-gel method for low-temperature Selective catalytic reduction *** conversion of these catalysts was evaluated under100℃-300℃.H-Temperature Programmed Reduction was used to investigate the reduction capability effect on NO *** this basis,sulfur resistance of catalysts was analyzed and Fourier Transform Infrared(FI-IR) spectra were used to discuss sulfur poisoning mechanism of *** results indicated that NO conversion of catalysts was Mn-Ce-W ≈ MnCe- Y> Mn-Ce-Zr> Mn-Ce >Mn-Ce-La> MnCe-Pr.W,Zr,Y elements was doped to improve catalytic activity at low-temperature and enhance anti-sulfur ability of ***,W element can restrain sulfate formation and reduce the channel blocking of the catalyst and Mn-Ce-W catalyst displays optimal performance of resistance to sulfur poisoiling.

关键词： Selective Catalytic Reduction DeNOx Low-temperature Mn-based catalyst Sulfur resistance

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Sol-Gel processing and novel physical properties of PLZT7/57/43 ferroelectric ceramics

Sol-Gel processing and novel physical properties of PLZT7/57...

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第八届中国功能材料及其应用学术会议

作者： ZHENG Ke-yu DING Ya-Li SHAO Ren-Zhi Ministry of education key laboratory for the green preparation and application of functional materials Hubei University Shool of materials Science & Engineering Hubei University Institute of Physics and Information Science Hunan Normal University

ISBN: (纸本)9783037859698

The sol-gel process was employed to prepare(PbLa)(ZrTi)O(PLZT) ceramics with nominal composition PbLa(Zr/Ti)*** and physical properties such as dielectric,piezoelectric and ferroelectric propertieswere *** diffraction results showed that the perovskite phasePLZT was formed when the sol-gel processed powders was calcined at 600℃ for 4 ***-crystalline particles with a size of 0nm were ***-DTA studies were used to analyze the thermal properties of nano-powders for understanding the reaction kinetics in *** bulk ceramic samples prepared from the sol-gel derived powders were subjected to electrical measurements,in order todetermine the dielectric,piezoelectric and ferroelectric *** dielectric properties of the PLZT-BST system are further improved and the dielectric piezoelectric properties of PLZT ceramics are found to be sensitive to the particle size of PLZT *** dielectric piezoelectric properties of polarized PLZT ceramics can be improved with the lessening of PLZT nanopowder ***,the grain size of PLZT ceramics decreases.

关键词： Sol-gel Nnanopowder PLZT Ferroelectric Piezoelectric Dielectric

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Formation mechanism and photocatalytic properties of bismuth vanadate

Formation mechanism and photocatalytic properties of bismuth...

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第八届中国功能材料及其应用学术会议

作者： SHAN Lian-wei FANG Rui LI Wei DONG Li-min LIU Bo Key Laboratory of green Chemical Engineering and technology of College of Heilongjiang Province College of Chemical and Environmental EngineeringHarbin University of Science and Technology material Science and Engineering Department Harbin University of Science and TechnologyKey Laboratory of Materials Research and Application of Heilongjiang Province material Science and Engineering Department Harbin University of Science and TechnologyKey Laboratory of Materials Research and Application of Heilongjiang Province

ISBN: (纸本)9783037859698

This study is focused on formation mechanism and photocatalytic properties of bismuth *** powders were synthesized by a sol-gel method,and its photocatalytic performance was investigated under different Ag environments in this *** experimental data obtained were tested by X-ray diffraction(XRD),UV/vis scanning spectrophotometer,Fourier transform infrared spectra(FTIR) *** decolorization rate of MO was researched by AgO loading and Ag(NO)used as electron *** possible photocatalytic mechanism has been discussed by photocatalytic reactions.

关键词： bismuth vanadate photocatalytic properties sol-gel method

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