|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | High-resolution 3D crustal S-wave velocity structure of the MiddleLower Yangtze River Metallogenic Belt and implications for its deep geodynamic setting显示文摘The Middle-Lower Yangtze River Metallogenic Belt(MLYMB) is an important mineral resource region in China.High-resolution crustal models can provide crucial constraints to understand the ore-forming processes and geodynamic setting in this region. Using ambient seismic noise from 107 permanent and 82 portable stations in the MLYMB and the adjacent area,we present a new high-resolution 3D S-wave velocity model of this region. We first extract 5–50 s Rayleigh wave phase velocity dispersion data by calculating ambient noise cross-correlation functions(CFs) and then use the surface wave direct inversion method to invert the mixed path travel times for the 3D S-wave velocity structure. Checkerboard tests show that the horizontal resolution of the 3D S-wave velocity model is approximately 0.5°–1.0° and that the vertical resolution decreases with increasing noise and depth. Our high-resolution 3D S-wave velocity model reveals:(1) AV-shaped high-velocity zone(HVZ) is located in the lower crust and the uppermost mantle in the study region. The western branch of the HVZ passes through the Jianghan Basin,the Qinling-Dabie orogenic belt and the Nanxiang Basin. The eastern branch, which almost completely covers the main body of the MLYMB, is located near the Tanlu Fault. The low-velocity anomalies between the western and eastern branches are located in the area of the Qinling-Dabie orogenic belt.(2) High-velocity uplifts(HVUs) are common in the crust of the MLYMB,especially in the areas near the Tanlu Fault, the Changjiang Fault and the Yangxin-Changzhou Fault. The intensities of the HVUs gradually weaken from west to east. The V-shaped HVZ in the lower crust and uppermost mantle and the HVUs in the middle and lower crust likely represent cooled mantle intrusive rocks. During the Yanshanian period, fault systems formed in the MLYMB due to the convergence between the South China Plate and the North China Plate, the multiple-direction drifting of the PaleoPacific Plate and its subduction beneath the Eurasian Plate. The dehydration of the cold oceanic crust led to partial melting in the upper mantle. Temperature differences caused strong convection of the upper mantle material that underplated the lower crust and rose to near the surface along the deep fault systems. After mixing with the crustal materials, mineralization processes, such as assimilation and fractional crystallization, occurred in the MLYMB. | Song LUO Huajian YAO Qiusheng LI Weitao WANG Kesong WAN Yafeng MENG Bin LIU | 2019 | Science China Earth Sciences2019，62，9： | 13 |
| 2 | 3-D shear wave velocity structure in the shallow crust of the Tan-Lu fault zone in Lujiang,Anhui,and adjacent areas,and its tectonic implications显示文摘The Tan-Lu fault zone is a large NNE-trending fault zone in eastern China.Investigations of the structures of the fault zone and its surrounding areas have attracted much attention.In this study,we used dense-array ambient noise tomography to construct a threedimensional shear wave velocity model of shallow crust in an area about 80km×70km in Lujiang,Anhui Province,eastern China.For approximately one month we collected continuous ambient noise signals recorded by 90 short-period seismographs in the region,and obtained the short-period Rayleigh wave empirical Green's functions between stations by the cross-correlation method;we also extracted 0.5–8 s fundamental mode Rayleigh wave group velocity and phase velocity dispersion curves.Based on the direct surface wave tomography method,we jointly inverted the group velocity and phase velocity dispersion data of all paths and obtained the 3-D shear wave velocity structure in the depth range of 0–5 km.The results revealed important geological structural features of the study area.In the north region,the sedimentary center of the Hefei Basin—the southwestern part of the Chaohu Lake—shows a significant low-velocity anomaly to a depth of at least 5 km.The southwestern and southeastern regions of the array are the eastern margin of the Dabie orogenic belt and the intrusion area of Luzong volcanic rocks,respectively,and both show obvious high-speed anomalies;the sedimentary area within the Tan-Lu fault zone(about 10 km wide)shows low-velocity anomalies.However,the volcanic rock intrusion area in the fault zone is shown as high velocity.Our shallow crustal imaging results reflect the characteristics of different structures in the study area,especially the high-speed intrusive rocks in the Tan-Lu fault zone,which were probably partially derived from the magmatic activity of Luzong volcanic basin.From the Late Cretaceous to Early Tertiary,the Tan-Lu fault zone was in a period of extensional activity;the special stress environment and the fractured fault zone morphology provided conditions for magma in the Luzong volcanic basin to intrude into the Tan-Lu fault zone in the west.Our 3-D model can also provide important information for deep resource exploration and earthquake strong ground motion simulation. | Cheng Li HuaJian Yao Yuan Yang Song Luo KangDong Wang KeSong Wan Jian Wen Bin Liu | 2020 | Earth and Planetary Physics2020，4，3： | 12 |
| 3 | 7YSZ coating prepared by PS-PVD based on heterogeneous nucleation显示文摘Plasma spray-physical vapor deposition(PS-PVD) as a novel coating process based on low-pressure plasma spray(LPPS) has been significantly used for thermal barrier coatings(TBCs).A coating can be deposited from liquid splats, nano-sized clusters, and the vapor phase forming different structured coatings, which shows obvious advantages in contrast to conventional technologies like atmospheric plasma spray(APS) and electron beam-physical vapor deposition(EBPVD). In addition, it can be used to produce thin, dense, and porous ceramic coatings for special applications because of its special characteristics, such as high power, very low pressure, etc. These provide new opportunities to obtain different advanced microstructures, thus to meet the growing requirements of modern functional coatings. In this work, focusing on exploiting the potential of gas-phase deposition from PS-PVD, a series of 7 YSZ coating experiments with various process conditions was performed in order to better understand the deposition process in PS-PVD, where coatings were deposited on different substrates including graphite and zirconia. Meanwhile, various substrate temperatures were investigated for the same substrate. As a result, a deposition mechanism of heterogeneous nucleation has been presented showing that surface energy is an important influencing factor for coating structures. Besides, undercooling of the interface between substrate and vapor phase plays an important role in coating structures. | Ziqian DENG Xiaofeng ZHANG Kesong ZHOU Min LIU Chunming DENG Jie MAO Zhikun CHEN | 2018 | Chinese Journal of Aeronautics2018，31，4： | 10 |
| 4 | Bio-inspired special wetting surfaces via self-assembly显示文摘Self-assembly is the fundamental principle, which can occur spontaneously in nature. Through billions of years of evolution, nature has learned what is optimal. The optimized biological solution provides some inspiration for scientists and engineers. In the past decade, under the multi-disciplinary collaboration, bio-inspired special wetting surfaces have attracted much attention for both fundamental research and practical applications. In this review, we focus on recent research progress in bio-inspired special wetting surfaces via self-assembly, such as low adhesive superhydrophobic surfaces, high adhesive superhydrophobic surfaces, superamphiphobic surfaces, and stimuli-responsive surfaces. The challenges and perspectives of this research field in the future are also briefly addressed. | JIN Xu YANG Shuai LI Zhou LIU KeSong JIANG Lei | 2012 | Science China Chemistry2012，55，11： | 9 |
| 5 | Additive manufacturing of steel–copper functionally graded material with ultrahigh bonding strength显示文摘Additive manufacturing enables processing of functionally graded materials(FGMs)with flexible spatial design and high bonding strength.A steel-copper FGM with high interfacial strength was developed using laser powder bed fusion(LPBF).The effect of laser process parameters on interfacial defects was evaluated by X-ray tomography,which indicates a low porosity level of 0.042%therein.Gradient/fine dendritic grains in the interface are incited by high cooling rates,which facilitates interface strengthening.Multiple mechanical tests evaluate the bonding reliability of interface;and the fatigue tests further substantiate the ultrahigh bonding strength in FGMs,which is superior to traditional manufacturing methods.Mechanisms of the high interfacial bond strength were also discussed. | Chaolin Tan Youxiang Chew Guijun Bi Di Wang Wenyou Ma Yongqiang Yang Kesong Zhou | 2021 | Journal of Materials Science & Technology2021，，13： | 7 |
| 6 | Mechanism of vertical crack formation in Yb_(2)SiO_(5) coatings deposited via plasma spray-physical vapor deposition显示文摘Plasma spray-physical vapor deposition(i.e.,PS-PVD)is a promising method for obtaining advanced environmental barrier coatings(EBCs).The EBCs must meet some requirements in the application,in which the thermal cycle performance affects the service lifetime.The preparation of artificial vertical cracks in Yb_(2)SiO_(5) coatings is an effective approach for meeting the requirements above because vertical cracks provide a strain tolerance.To clarify the formation mechanism of vertical cracks during the PSPVD,the effects of coating thickness and substrate temperature on the formation of vertical cracks were investigated.In addition,the interactions of spray powder and plasma flame during coating deposition were also characterized by optical spectroscopy.It is indicated that vertical cracks are formed due to a thermal expansion mismatch between Yb_(2)SiO_(5) and mullite coating,transient cooling after deposition and the nucleation of evaporated Yb_(2)SiO_(5) as well. | Xiaofeng Zhang Chao Wang Ruijun Ye Chunming Deng Xinghua Liang Ziqian Deng Shaopeng Niu Jinbing Song Guo Liu Min Liu Kesong Zhou Jian Lu Junli Feng | 2020 | Journal of Materiomics2020，6，1： | 6 |
| 7 | Improvement of the activity and SO_(2) tolerance of Sb-modified Mn/PG catalysts for NH_(3)-SCR at a low temperature显示文摘A series of MnM/palygorskite(PG)(M=La,W,Mo,Sb,Mg)catalysts was prepared by the wetness co-impregnation method for low-temperature selective catalytic reduction(SCR)of NO with NH_3.Conversion efficiency followed the order Sb>Mo>La>W>Mg.A combination of various physico-chemical techniques was used to investigate the influence of Sb-modified Mn/PG catalysts.MnSb_(0.156)/PG catalyst showed highest NO conversion at low temperatures in the presence of SO_(2) which reveals that addition of Sb oxides effectively enhances the SCR activity of catalysts.A SO_(2) step-wise study showed that MnSb_(0.156)/PG catalyst displays higher durable resistance to SO_(2) than Mn/PG catalyst,where the sulfating of active phase is greatly inhibited after Sb doping.Scanning electron microscopy and X-ray diffraction results showed that Sb loading enhances the dispersion of Mn oxides on the carrier surface.According to the results of characterization analyses,it is suggested that the main reason for the deactivation of Mn/PG is the formation of manganese sulfates which cause the permanent deactivation of Mn-based catalysts.For Sb-doped Mn/PG catalyst,SO_(x) ad-species formed were mainly combined with SbO_(x) rather than MnO_(x).This preferential interaction between SbO_(x) and SO_(2) effectively shields the MnO_(x) as active species from being sulfated by SO_(2) resulting in the improvement of SO_(2) tolerance on Sb-added catalyst.Multiple information support that,owing to the addition of Sb,original formed MnO_(x) crystallite has been completely transformed into highly dispersed amorphous phase accounting for higher SCR activity. | Xianlong Zhang Shuangshuang Lv Xincheng Zhang Kesong Xiao Xueping Wu | 2021 | Journal of Environmental Sciences2021，33，3： | 6 |
| 8 | Reaction Mechanism and Thermal Insulation Property of Al-deposited 7YSZ Thermal Barrier Coating显示文摘To increase the performance and efficiency of thermal barrier coating(TBC), it is important to improve the thermal insulation property. In this work, a columnar Al film was deposited at the top of 7 wt% yttriastabilized zirconia(7YSZ) TBC by magnetron sputtering. A vacuum heat treatment was then carried out to improve the insulation property of Al-deposited TBC. Reaction mechanism of Al-Zr O2 system in Aldeposited TBC was studied by differential thermal analysis(DTA). The phase structures of the assprayed TBC, the Al-deposited and vacuum-treated TBC were characterized. The microstructure evolution of Al-deposited TBC was illustrated after vacuum heat treatment. And the insulation property of the assprayed TBC and treated TBC was compared. The results show that a multi-scaled layer, consisting of micron/nano structured α-Al2O3 and Al3 Zr grain was in situ synthesized at the top of 7YSZ coating via vacuum heat treatment. The TBC with the multi-scaled overlay has better insulation property than the assprayed TBC. | Xiaofeng Zhang Kesong Zhou Wei Xu Jinbing Song Chunming Deng Min Liu | 2015 | Journal of Materials Science & Technology2015，31，10： | 5 |
| 9 | Yttria-stabilized-zirconia hollow spheres prepared by atmospheric plasma spray显示文摘Yttria-stabilizecl-zirconia(YSZ) hollow spheres are widely utilized for their novel physical and chemical properties.However,developing a simple and low-cost method for preparing such hollow spheres still remains a great challenge.In this paper,an atmospheric plasma spray(APS) method is introduced,and the formation mechanism of hollow 7YSZ(ZrO_2-7wt%Y_2O_3) spheres is presented.The hollow sphere morphology was observed by scanning electron microscopy(SEM) when agglomerated and sintered 7YSZ powders were used.Additionally,additive composition changes,phase transformations,and the thermal behavior of 7YSZ powders were analyzed by energy dispersive spectroscopy(EDS),X-ray diffractometry(XRD),thermogravimetric analysis(TG) and differential scanning calorimeter analysis(DSC).Furthermore,the phase transformations of agglomerated and sintered 7YSZ powders,7YSZ hollow spheres that annealed at various temperatures for different times are analyzed. | Xiaofeng Zhang Kesong Zhou Fa Chang Chen Song Chunming Deng Siyuan Liang | 2014 | Particuology2014，12，3： | 4 |
| 10 | Hierarchical structures hydrogel evaporator and superhydrophilic water collect device for efficient solar steam evaporation显示文摘Efficient light absorption and trapping are of vital importance for the solar water evaporation by hydrogel-based photothermal conversion materials.Conventional strategies are focused on the development of the composition and structure of the hydrogers internal network.In our point of view,the importance of the surface structure of hydrogel has usually been underestimated or ignored.Here inspired by the excellent absorbance and water transportation ability of biological surface structure,the hierarchical structured hydrogel evaporators(HSEs)increased the light absorption,trapping,water transportation and water-air interface,which is the beneficial photothermal conversion and water evaporation.The HSEs showed a rapid evaporation rate of 1.77 kg·m^(-2)·h^(-1)at about 92%energy efficiency under one sun(1 kW·m^(-2)).Furthermore,the superhydrophilic window device was used in this work to collect the condensed water,which avoids the light-blocking caused by the water mist formed by the small droplets and the problem of the droplets stick on the device dropping back to the bulk water.Integrated with the excellent photothermal conversion hydrogel and superhydrophilic window equipment,this work provides efficient evaporation and desalination of hydrogel-based solar evaporators in practical large-scale applications. | Wenwei Lei Sovann Khan Lie Chen Norihiro Suzuki Chiaki Terashima Kesong Liu Akira Fujishima Mingjie Liu | 2021 | Nano Research2021，14，4： | 4 |
| 11 | Robust superhydrophobicity of hierarchical ZnO hollow microspheres fabricated by two-step self-assembly显示文摘Superhydrophobic 和 superhydrophilic 表面广泛地为工业应用由于他们的重要性被调查了。然而, superhydrophobic 表面是很敏感的加热,这被报导了,紫外(紫外) 轻、电的潜力,它防碍他们的长期的耐久性。在这研究,我们介绍一条新奇途径完成柔韧的 superhydrophobic 由设计定义建筑学的复杂 nanostructures 的薄电影。分别地,有在 mesoporous nanoball 堵住的 1D nanowire 网络, 2D nanosheet 栈,和 3D 的形态学的控制成分体系结构的 ZnO 空 microspheres 的一个家庭经由一个二拍子的圆舞被综合自己组装途径,有特殊设计的结构的 oligomers 或成分 nanostructures 在哪儿,首先从表面活化剂模板形成,然后进一步由第二合作表面活化剂的增加集合了进复杂形态学。由二拍子的圆舞组成的薄电影综合了有不同体系结构的 ZnO 空 microspheres 与 150 猠杵敧瑳 ? 的接触角度介绍了 superhydrophobicities ? 漠楲慧業愠 ?? 慣摮摩瑡 ? | Ziqi Sun Ting Liao Kesong Liu Lei Jiang Jung Ho Kim Shi Xue Dou | 2013 | Nano Research2013，6，10： | 4 |
| 12 | Chemical synthesis and coercivity enhancement of Nd2Fe14B nanostructures mediated by non-magnetic layer显示文摘High-performance Nd2Fei4B magnets have been widely required in various fields recently due to the lightweight and miniaturization of devices.In this work,we synthesize Nd2Fei4B nanostructures with tunable magnetic properties through surfactant-assisted high energy ball milling(SAHEBM)process,achieving prominently enhanced coercivity by forming non-magnetic layers as grain boundary phase.When the reduction annealing process was carried out as pellet with Ca,the coercivity increased from 0.8 kOe to over 3 kOe as Nd2Fei4B powder,which is proved to be the contribution of the chemical diffusion of Nd elements and the formation of Nd-rich layer as magnetic insulating medium.In addition,two-dimensional graphene oxide(GO)was employed to build extra grain boundary,by which the coercivity of the core@dual-shell structure can achieve up to 8 kOe,tenfold of the original sample.The intrinsic mechanism indicated that the Nd-diffusion induced Nd-rich phase along with the reduced GO in the system could form non-magnetic layer as grain boundary and magnetically isolate the adjacent grains,significantly enhancing the exchange coupling effect.This work markedly opens up an effective approach for the chemical preparation of high-performance Nd2Fe14B nanostructured magnets,especially after post treatment,and gives an insight on the interactions at nanoscale. | Kai Zhu Junjie Xu Xiaobai Wang Wei Li Kesong Tian Yanglong Hou | 2020 | Nano Research2020，13，4： | 3 |
| 13 | Nanoparticles assembly-induced special wettability for bio-inspired materials显示文摘Through billions of years of evolution,nature has optimized the programmed assembly of the nano-and micro-scale structures of biological materials.Nanoparticle assembly provides an avenue for mimicking these multiscale functional structures.Bio-inspired surfaces with special wettability have attracted much attention for both fundamental research and practical applications.In this review,we focus on recent progress in nanoparticle assembly-induced special wettability,including superhydrophiiic surfaces,superhydrophobic surfaces,superamphiphobic surfaces,stimuli-responsive surfaces,and selfhealing surfaces.A brief summary and an outlook of the future of this research field are also provided. | Shuai Yang Xu Jin Kesong Liu Leijiang | 2013 | Particuology2013，11，4： | 3 |
| 14 | Krylov subspace method based on data preprocessing technology显示文摘The performance of adaptive beamforming techniques is limited by the nonhomogeneous clutter sce- nario.An augmented Krylov subspace method is proposed,which utilizes only a single snapshot of the data for adaptive processing.The novel algorithm puts together a data preprocessor and adaptive Krylov subspace algo- rithm,where the data preprocessor suppresses discrete interference and the adaptive Krylov subspace algorithm suppresses homogeneous clutter.The novel method uses a single snapshot of the data received by the array antenna to generate a cancellation matrix that does not contain the signal of interest (SOI) component,thus,it mitigates the problem of highly nonstationary clutter environment and it helps to operate in real-time.The benefit of not requiring the training data comes at the cost of a reduced degree of freedom (DOF) of the system.Simulation illus- trates the effectiveness in clutter suppression and adaptive beamforming.The numeric results show good agreement with the proposed theorem. | Tang Bin Wang Xuegang Zhang Chaoshen Chen Kesong | 2008 | Journal of Systems Engineering and Electronics2008，19，6： | 3 |
| 15 | Adaptive Mobile Video Delivery Based on Fountain Codes and DASH:A Survey显示文摘Recent years have witnessed an explosive growth in mobile video-based services and efficient and reliable video delivery draws more and more attention. As a type of rateless codes, fountain codes can automatically adapt to wireless channel conditions without any knowledge of channels. This paper provides an overview of several typical Forward Error Correction(FEC) codes, such as Reed-Solomon(RS) code, Tornado code, Luby-Transform(LT) code, and Raptor code. We focus on a novel delay-aware fountain coding(DAF) technique that maximizes the code word length under the constraint of a given delay. Based on DAF, this paper also presents Unequal Error Protection DAF(UEP-DAF) which improves the Peak Signal to Noise Ratio(PSNR) without additional coordination between the encoder and the decoder, as well as Model Predictive Control DAF(MPC-DAF) which reduces the computational complexity to an affordable level for real-time video communications. Moreover, we review video streaming technologies,then introduce Dynamic Adaptive Streaming over HTTP(DASH) and DASH over Multiple Content Distribution Servers(MCDSDASH) in detail. Based on MCDS-DASH that adapts video bitrate at the block level to alleviate video fluctuation, we propose a novel approach to integrating fountain codes with MCDS-DASH, which is capable of achieving unprecedented high throughput. | WU Kesong CAO Xianbin CHEN Zhifeng WU Dapeng | 2018 | ZTE Communications2018，16，3： | 2 |
| 16 | Numerical simulation of diesel combustion based on n-heptane and toluene显示文摘Considering the self-ignition characteristic and C/H ratio,n-heptane and toluene(6:4 by mass)are chosen to constitute diesel surrogate fuel,and a reduced oxidation mechanism was developed.This mechanism was firstly validated by the combustion of diesel fuel in different oxygen concentrations within a constant volume vessel by high-speed photography.The simulated flame temperature distribution reproduces the diesel combustion process quite well.For further validation,combustion in real diesel engine was also investigated numerically and experimentally using a light duty diesel and a marine diesel.The calculated pressure curves in different operation conditions fit the measured data reasonably well.The oxidation mechanism could reproduce the main characteristics including combustion phase and NOx emission of diesel combustion in different cases. | Kesong Zhang Qiangzhi Xin Zhenqian Mu Zhijian Niu Zhiming Wang | 2019 | Propulsion and Power Research2019，8，2： | 2 |
| 17 | Electric field and photoelectrical effect bi-enhanced hydrogen evolution reaction显示文摘 | Mengyu Yan Xunbiao Zhou Xuelei Pan dunhui Wang Lixue Xia Kesong Yu Xiaobin Liao Xu Xu Liang He Liqiang Mai | 2018 | Nano Research2018，11，6： | 2 |
| 18 | Graphene-polymer nanocomposites for structural and functional applications显示文摘 | Kesong Hu Dhaval D. Kulkarni Ikjun Choi Vladimir V. Tsukruk | 2014 | Progress in Polymer Science2014，，： | 1 |
| 19 | A Modifed Real GA for the Sparse Linear Array Synthesis with Multiple Constraints显示文摘 | Chen Kesong He Zishu Han Chunlin | 2006 | IEEE Trans on Antennas Propagat2006，54，7： | 1 |
| 20 | Influence of calcination temperatures on the photocatalytic activity and photo-induced hydrophilicity of wormhole-like mesoporous TiO2显示文摘 | Liu Kesong Zhou Wei Shi Keying | 2006 | Nanotechnology2006，17，5： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员