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14篇 您的检索式:作者名="Fuxing Han"
    题名 作者 年代 出处 被引量
1Three‑Dimensional Ordered Mesoporous Carbon Spheres Modified with Ultrafine Zinc Oxide Nanoparticles for Enhanced Microwave Absorption Properties显示文摘Currently,electromagnetic radiation and interference have a significant effect on the operation of electronic devices and human health systems.Thus,developing excellent microwave absorbers have a huge significance in the material research field.Herein,a kind of ultrafine zinc oxide(ZnO)nanoparticles(NPs)supported on three-dimensional(3D)ordered mesoporous carbon spheres(ZnO/OMCS)is prepared from silica inverse opal by using phenolic resol precursor as carbon source.The prepared lightweight ZnO/OMCS nanocomposites exhibit 3D ordered carbon sphere array and highly dispersed ultrafine ZnO NPs on the mesoporous cell walls of carbon spheres.ZnO/OMCS-30 shows microwave absorbing ability with a strong absorption(−39.3 dB at 10.4 GHz with a small thickness of 2 mm)and a broad effective absorption bandwidth(9.1 GHz).The outstanding microwave absorbing ability benefits to the well-dispersed ultrafine ZnO NPs and the 3D ordered mesoporous carbon spheres structure.This work opened up a unique way for developing lightweight and high-efficient carbon-based microwave absorbing materials.Yan Song Fuxing Yin Chengwei Zhang Weibing Guo Liying Han Ye Yuan 2021Nano-Micro Letters2021,13,5:6
2Positioning of grid points in wave front construction显示文摘鉴于在在波浪前面构造方法的非常规的四边的格子和常规矩形格子节点之间的相对的放问题,有放方法的四个格子的具体实现问题(向量十字产品判断,角度和,交叉点,并且签署比较算法)在通常在计算机被使用的波浪前面建设,图形在这被比较并且分析纸。在在波浪前面建设在非常规的四边的格子和常规矩形格子节点之间放的亲戚的实现基于地点方法,向量十字产品判断方法更快的计算例子表演和比另外的方法精确的更多的稳定性分析。它为移植和 demigration 的下一步提供精确格子点属性价值。Han Fuxing Sun Jianguo Sun Zhangqing Yang Hao 2009Applied Geophysics2009,6,3:6
3T cell-depleting nanoparticles ameliorate bone loss by reducing activated T cells and regulating the Treg/Th17 balance显示文摘Estrogen deficiency is one of the most frequent causes of osteoporosis in postmenopausal women.Under chronic inflammatory conditions caused by estrogen deficiency,activated T cells contribute to elevated levels of proinflammatory cytokines,impaired osteogenic differentiation capabilities of bone marrow mesenchymal stem cells(BMMSCs),and disturbed regulatory T cell(Treg)/Th17 cell balance.However,therapeutic strategies that re-establish immune homeostasis in this disorder have not been well developed.Here,we produced T cell-depleting nanoparticles(TDNs)that ameliorated the osteopenia phenotype and rescued the osteogenic deficiency of BMMSCs in ovariectomized(OVX)mice.TDNs consist of monocyte chemotactic protein-1(MCP-1)-encapsulated mesoporous silica nanoparticles as the core and Fas-ligand(FasL)as the corona.We showed that the delicate design of the TDNs enables rapid release of MCP-1 to recruit activated T cells and then induces their apoptosis through the conjugated FasL both in vitro and in vivo.Apoptotic signals recognized by macrophages help skew the Treg/Th17 cell balance and create an immune tolerant state,further attenuating the osteogenic deficiency of BMMSCs and the osteopenia phenotype.Mechanistically,we found that the therapeutic effects of TDNs were partially mediated by apoptotic T cell-derived extracellular vesicles(ApoEVs),which promoted macrophage transformation towards the M2 phenotype.These findings demonstrate that TDNs may represent a promising strategy for treating osteoporosis and other immune disorders.Xiaoshan Yang Fuxing Zhou Pingyun Yuan Geng Dou Xuemei Liu Siying Liu Xiangdong Wang Ronghua Jin Yan Dong Jun Zhou Yajie Lv Zhihong Deng Shiyu Liu Xin Chen Ying Han Yan Jin 2021Bioactive Materials2021,6,10:4
4Forecasting Scenario Generation for Multiple Wind Farms Considering Time-series Characteristics and Spatial-temporal Correlation显示文摘Scenario forecasting methods have been widely studied in recent years to cope with the wind power uncertainty problem. The main difficulty of this problem is to accurately and comprehensively reflect the time-series characteristics and spatial-temporal correlation of wind power generation. In this paper, the marginal distribution model and the dependence structure are combined to describe these complex characteristics. On this basis, a scenario generation method for multiple wind farms is proposed. For the marginal distribution model, the autoregressive integrated moving average-generalized autoregressive conditional heteroskedasticity-t (ARIMA-GARCH-t) model is proposed to capture the time-series characteristics of wind power generation. For the dependence structure, a time-varying regular vine mixed Copula (TRVMC) model is established to capture the spatial-temporal correlation of multiple wind farms. Based on the data from 8 wind farms in Northwest China, sufficient scenarios are generated. The effectiveness of the scenarios is evaluated in 3 aspects. The results show that the generated scenarios have similar fluctuation characteristics, autocorrelation, and crosscorrelation with the actual wind power sequences.Qingyu Tu Shihong Miao Fuxing Yao Yaowang Li Haoran Yin Ji Han Di Zhang Weichen Yang 2021Journal of Modern Power Systems and Clean Energy2021,9,4:3
5The circular RNA circINPP4B acts as a sponge of miR-30a to regulate Th17 cell differentiation during progression of experimental autoimmune encephalomyelitis显示文摘Circular RNAs(circRNAs)regulate gene expression and participate in various biological and pathological processes.However,little is known about the effects of specific circRNAs on T helper cell 17(Th17)differentiation and related autoimmune diseases,such as multiple sclerosis(MS).Here,using transcriptome microarray analysis at different stages of experimental autoimmune encephalomyelitis(EAE),we identified the EAE progression-related circINPP4B,which showed upregulated expression in Th17 cells from mice with EAE and during Th17 differentiation in vitro.Silencing of circINPP4B inhibited Th17 differentiation and alleviated EAE,characterized by less demyelination and Th17 infiltration in the spinal cord.Mechanistically,circINPP4B served as a sponge that directly targeted miR-30a to regulate Th17 differentiation.Furthermore,circINPP4B levels were associated with the developing phases of clinical relapsing-remitting MS patients.Our results indicate that circINPP4B plays an important role in promoting Th17 differentiation and progression of EAE by targeting miR-30a,which provides a potential diagnostic and therapeutic target for Th17-mediated MS.Jingjing Han Wei Zhuang Wanhua Feng Fuxing Dong Fang Hua Ruiqin Yao Xuebin Qu 2021Cellular & Molecular Immunology2021,18,9:2
6DEAP1 encodes a fasciclin-like arabinogalactan protein required for male fertility in rice显示文摘Arabinogalactan proteins(AGPs)are widely distributed in plant cells.Fasciclin-like AGPs(FLAs)belong to a subclass of AGPs that play important roles in plant growth and development.However,little is known about the biological functions of rice FLA.Herein,we report the identification of a male-sterile mutant of DEFECTIVE EXINE AND APERTURE PATTERNING1(DEAP1)in rice.The deap1 mutant anthers produced aberrant pollen grains with defective exine formation and a flattened aperture annulus and exhibited slightly delayed tapetum degradation.DEAP1 encodes a plasma membrane-associated member of groupⅢplant FLAs and is specifically and temporally expressed in reproductive cells and the tapetum layer during male development.Gene expression studies revealed reduced transcript accumulation of genes related to exine formation,aperture patterning,and tapetum development in deap1 mutants.Moreover,DEAP1 may interact with two rice D6 PROTEIN KINASE-LIKE3 s(OsD6PKL3s),homologs of a known Arabidopsis aperture protein,to affect rice pollen aperture development.Our findings suggested that DEAP1 is involved in male reproductive development and may affect exine formation and aperture patterning,thereby providing new insights into the molecular functions of plant FLAs in male fertility.Dan Zhou Ting Zou Kaixuan Zhang Pingping Xiong Fuxing Zhou Hao Chen Gongwen Li Kaiyou Zheng Yuhao Han Kun Peng Xu Zhang Shangyu Yang Qiming Deng Shiquan Wang Jun Zhu Yueyang Liang Changhui Sun Xiumei Yu Huainian Liu Lingxia Wang Ping Li Shuangcheng Li 2022Journal of Integrative Plant Biology2022,64,7:2
7Research on D2D Co-localization Algorithm Based on Clustering Filtering显示文摘Nowadays, most positioning systems carry out locational calculation based on the accurate location information of some devices in the network. However there is a deviation in the locational information of the part of the device, we need to reduce it in order to obtain higher positioning accuracy. In this paper, we proposed a new centralized D2D(Device-to-Device) co-location algorithm. This algorithm uses DBSACN(Density-Based Spatial Clustering of Applications with Noise) clustering to reduce the deviation of device location information. Numerical results show that the positioning accuracy of the centralized D2D co-localization algorithm is improved by 62.7% compared with the SPAWN algorithm, which positioning performance superior to the traditional co-localization algorithm.Jiawen Zhang Fuxing Yang Zhongliang Deng Xiao Fu Jiazhi Han 2020China Communications2020,17,8:1
8Research on the generation method of seawater sound velocity model based on Perlin noise显示文摘In the processing of conventional marine seismic data,seawater is often assumed to have a constant velocity model.However,due to static pressure,temperature difference and other factors,random disturbances may often frequently in seawater bodies.The impact of such disturbances on data processing results is a topic of theoretical research.Since seawater sound velocity is a difficult physical quantity to measure,there is a need for a method that can generate models conforming to seawater characteristics.This article will combine the Munk model and Perlin noise to propose a two-dimensional dynamic seawater sound velocity model generation method,a method that can generate a dynamic,continuous,random seawater sound velocity model with some regularity at large scales.Moreover,the paper discusses the influence of the inhomogeneity characteristics of seawater on wave field propagation and imaging.The results show that the seawater sound velocity model with random disturbance will have a significant influence on the wave field simulation and imaging results.Zhimiao Chang Fuxing Han Zhangqing Sun Zhenghui Gao Xueqiu Wang 2024Acta Oceanologica Sinica2024,43,1:0
9Application of Gaussian beam pre-stack depth migration in rugged seabed显示文摘Strong fluctuation of seabed,abrupt variation in depth and dip of seabed bring seismic imaging problems,such as irregular reflection waves,obvious multiple waves,serious lateral wave development,poor imaging on base surface and depression structure,low signal-to-noise ratio of middle and deep layers.In this paper,Gaussian beam migration imaging method is used to analyze the imaging effect of rugged seabed in deep water area,and the ray tracing method of wavefront construction method is used to analyze the kinematic characteristics of seismic waves.By improving the design of seismic data acquisition and observation system,imaging quality of fine structures is improved.HAN Fuxing YI Xin SUN Zhangqing HU Jia XU Baoyin XU Hai 2021Global Geology2021,24,2:0
10The influence of irregular seafloor topography on the seismic wave field and migration imaging显示文摘One of the problems experienced in marine geophysical exploration is that the layered features in the migration imaging profile are blurred and the seismic energy reflected is weaker in the middle or lower parts. In this study we model the seismic wavefield records in the undulating seafloor when there is both a slight change and significant change in seafloor topography to analyze its influence on the seismic reflection data and migration imaging profiles. We compare and analyze the wave field records collected at the same point on the original and modified velocity models, and the cross-bonding resulting migration imaging profiles. The results show that whether the seismic reflection data collection is performed along the direction of the survey line or against the direction of the survey line, slight changes in the seafloor topography have little effect on the wave field records and the migration profile, while significant changes in the seafloor topography have great effect on both the wave field records and migration profile.Fuxing Han Kun Wang Jianguo Sun 2019Acta Oceanologica Sinica2019,38,3:0
11Application of Wavefront Construction Method to Establish the Zero-offset Isochrons显示文摘Han Fuxing Sun Jianguo Wang Kun 2012石油地球物理勘探2012,47,A02:0
12Influences of coarse grid selection on Kirchhoff beam migration显示文摘Kirchhoff beam migration is a beam migration method, which focuses on rapid imaging of geological structures. Although this imaging method ignores the amplitude information in the calculation process, it can calculate multi-arrival traveltime. This migration method takes into account both imaging accuracy and computational efficiency. Kirchhoff beam migration employs coarse grid techniques in several key steps such as traveltime calculation, weight function calculation, and imaging calculation. The selection of the coarse mesh size has an important influence on the computational efficiency and imaging accuracy of the migration imaging method. This paper will analyze this influence and illustrate the analysis results by the Marmousi data sets.LI Jiabin SUN Hui ZHANG Zhihou HAN Fuxing LIU Minchen 2019Global Geology2019,22,1:0
13Three-dimensional dynamic sea surface modeling based on ocean wave spectrum显示文摘In conventional marine seismic exploration data processing,the sea surface is usually treated as a horizontal free boundary.However,the sea surface is affected by wind and waves and there often exists dynamic small-range fluctuations.These dynamic fluctuations will change the energy propagation path and affect the final imaging results.In theoretical research,different sea surface conditions need to be described,so it is necessary to study the modeling method of dynamic undulating sea surface.Starting from the commonly used sea surface mathematical simulation methods,this paper mainly studies the realization process of simple harmonic wave and Gerstner wave sea surface simulation methods based on ocean wave spectrum,and compares their advantages and disadvantages.Aiming at the shortcomings of the simple harmonic method and Gerstner method in calculational speed and sea surface simulation effect,a method based on wave equation and using dynamic boundary conditions for sea surface simulation is proposed.The calculational speed of this method is much faster than the commonly used simple harmonic method and Gerstner wave method.In addition,this paper also compares the new method with the more commonly used higher-order spectral methods to show the characteristics of the improved wave equation method.Zhimiao Chang Fuxing Han Zhangqing Sun Zhenghui Gao Lili Wang 2021Acta Oceanologica Sinica2021,40,10:0
14Metallogenic model of the Shuangjianzishan Ag-Pb-Zn district,Northeast China:Revealed from integrated geophysical investigation显示文摘The Shuangjianzishan deposit in Inner Mongolia is a typical Ag-Pb-Zn deposit of the southern Great Xing’an Range.Proven reserves of Ag,Pb,and Zn in this deposit have reached the scale of super-large deposits,with favorable metallogenic conditions,strong prospecting signs,and high metallogenic potential.This paper reports a study involving integrated geophysical methods,including controlled-source audio-frequency magnetotelluric,gravity,magnetic,and shallow-seismic-reflection methods,to determine the spatial distribution of ore-controlling structures and subsurface intrusive rock for a depth range of<2000 m in the Shuangjianzishan ore district.The objective of this study is to construct a metallogenic model of the ore district and provide a scientific basis for the exploration of similar deposits in the deep and surrounding regions.We used three-dimensional inversion for controlled-source audio-frequency magnetotelluric data based on the limited memory quasi-Newton algorithm,and three-dimensional physical-property inversion for the gravity and magnetic data to obtain information about the subsurface distribution of ore-controlling structures and intrusive rocks.Under seismic reflection results,regional geology,petrophysical properties,and borehole information,the geophysical investigation shows that the Dashizhai group,which contains the main ore-bearing strata in the ore district,is distributed within a depth range of<1239 m,and is thick in the Xinglongshan ore block and the eastern part of the Shuangjianzishan ore block.The mineralization is spatially associated with a fault system characterized by NE-,NW-,and N-trending faults.The magnetic and electrical models identify large,deep bodies of intrusive rock that are inferred to have been involved in mineralization,with local shallow emplacement of some intrusions.Combining the subsurface spatial distributions of ore-bearing strata,ore-controlling faults,and intrusive rock,we propose two different metallogenic models for the Shuangjianzishan ore district,which provide a scientific basis for further prospecting in the deep regions of the ore district and surrounding areas.Yihao Wu Jiangtao Han Yunhe Liu Guoqing Ma Fuxing Han Yanchen Yang Lijia Liu Lei Guo Ye Guan Yinghui Zhang Zhenyu Guo Qian Mu 2022Geoscience Frontiers2022,13,2:0
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