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| 1 | Micro structure and corrosion behavior of ALD AI2O3 film on AZ31 magnesium alloy with different surface roughness显示文摘There remains growing interest in magnesium(Mg)and its alloys,as they are the lightest structural metallic materials and potential metallic biomaterials.In spite of the greatest historical Mg usage at present,the wider use of Mg alloys remains restricted by the poor corrosion resistance.A nano amorphous film,as the composition of Al2O3,had now been deposited on the AZ31 Mg alloy substrate by atomic layer deposition(ALD).Grazing incidence X-ray diffraction(GIXRD),X-ray reflectivity(XRR),X-ray photoelectron spectroscopy(XPS),atomic force microscope(AFM)and scanning electron microscopy(SEM)had been employed to identify the chemical compositions,microstructure and Al2O3/Mg interface of specimens firstly.Then corrosion behavior had been evaluated by neutral salt spray test and electrochemical measurement.The results showed that nano amorphous film made a homogeneous cover on Mg alloy.The film could improve the corrosion resistance of Mg alloy greatly,not only with a positive shift in Ecorr and a decrease in icorr,but also with a more uniform corroded mode.Furthermore,the roughness was found to be an important factor for corrosion resistant,in the way that rougher surface was corroded worse,and greater improvement would be in corrosion resistant after nano amorphous film deposition. | Fumin Xu Lan Luo Lei Xiong Yong Liu | 2020 | Journal of Magnesium and Alloys2020，8，2： | 5 |
| 2 | A simple formula for predicting settling velocity of sediment particles显示文摘Based on the general relationship described by Cheng between the drag coefficient and the Reynolds number of a particle, a new relationship between the Reynolds number and a dimensionless particle parameter is proposed. Using a trial-and-error procedure to minimize errors, the coefficients were determined and a formula was developed for predicting the settling velocity of natural sediment particles. This formula has higher prediction accuracy than other published formulas and it is applicable to all Reynolds numbers less than 2×105. | Song Zhiyao Wu Tingting Xu Fumin Li Ruijie | 2008 | Water Science and Engineering2008，1，1： | 3 |
| 3 | A Cognitive Memory-Augmented Network for Visual Anomaly Detection显示文摘With the rapid development of automated visual analysis,visual analysis systems have become a popular research topic in the field of computer vision and automated analysis.Visual analysis systems can assist humans to detect anomalous events(e.g.,fighting,walking alone on the grass,etc).In general,the existing methods for visual anomaly detection are usually based on an autoencoder architecture,i.e.,reconstructing the current frame or predicting the future frame.Then,the reconstruction error is adopted as the evaluation metric to identify whether an input is abnormal or not.The flaws of the existing methods are that abnormal samples can also be reconstructed well.In this paper,inspired by the human memory ability,we propose a novel deep neural network(DNN)based model termed cognitive memory-augmented network(CMAN)for the visual anomaly detection problem.The proposed CMAN model assumes that the visual analysis system imitates humans to remember normal samples and then distinguishes abnormal events from the collected videos.Specifically,in the proposed CMAN model,we introduce a memory module that is able to simulate the memory capacity of humans and a density estimation network that can learn the data distribution.The reconstruction errors and the novelty scores are used to distinguish abnormal events from videos.In addition,we develop a two-step scheme to train the proposed model so that the proposed memory module and the density estimation network can cooperate to improve performance.Comprehensive experiments evaluated on various popular benchmarks show the superiority and effectiveness of the proposed CMAN model for visual anomaly detection comparing with the state-of-the-arts methods.The implementation code of our CMAN method can be accessed at http://gffzz188fe103f8f1460aswncc65kupfnx6vo9.ffgz.tsg.suse.edu.cn/CMANcode/CMAN_pytorch. | Tian Wang Xing Xu Fumin Shen Yang Yang | 2021 | IEEE/CAA Journal of Automatica Sinica2021，8，7： | 2 |
| 4 | The observed analysis on the wave spectra of Hurricane Juan (2003)显示文摘Hurricane Juan provides an excellent opportunity to probe into the detailed wave spectral patterns and spectral parameters of a hurricane system, with enough wave spectral observations around Juan's track in the deep ocean and shallow coastal water. In this study, Hurricane Juan and wave observation stations around Juan's track are introduced. Variations of wave composition are discussed and analyzed based on time series of one-dimensional frequency spectra, as well as wave steepness around Juan's track: before, during, and after Juan's passing. Wave spectral involvement is studied based on the observed one-dimensional spectra and two-dimensional spectra during the hurricane. The standardization method of the observed wave spectra during Hurricane Juan is discussed, and the standardized spectra show relatively conservative behavior, in spite of the huge variation in wave spectral energy, spectral peak, and peak frequency during this hurricane. Spectral widths' variation during Hurricane Juan are calculated and analyzed. A two-layer nesting WW3 model simulation is applied to simulate the one-dimensional and two-dimensional wave spectra, in order to examine WW3's ability in simulating detailed wave structure during Hurricane Juan. | XU Fumin BUI THI Thuy Duyen PERRIE Will | 2014 | Acta Oceanologica Sinica2014，33，11： | 2 |
| 5 | Effects of storm waves on rapid deposition of sediment in the Yangtze Estuary channel显示文摘Recent research on short-term topographic change in the Yangtze Estuary channel under storm surge conditions is briefly summarized. The mild-slope, Boussinesq and action balance equations are compared and analyzed. The action balance equation, SWAN, was used as a wave numerical model to forecast strong storm waves in the Yangtze Estuary. The spherical coordinate system and source terms used in the equation are described in this paper. The significant wave height and the wave orbital motion velocity near the bottom of the channel during 20 m/s winds in the EES direction were simulated, and the model was calibrated with observation data of winds and waves generated by Tropical Cyclone 9912. The distribution of critical velocity for incipient motion along the bottom was computed according to the threshold velocity formula for bottom sediment. The mechanism of rapid deposition is analyzed based on the difference between the root-mean-square value of the near-bottom wave orbital motion velocity and the bottom critical tractive velocity. The results show that a large amount of bottom sediments from Hengsha Shoal and Jiuduan Shoal are lifted into the water body when 20 m/s wind is blowing in the EES direction. Some of the sediments may enter the channel with the cross-channel current, causing serious rapid deposition. Finally, the tendency of the storm to induce rapid deposition in the Yangtze Estuary channel zone is analyzed. | Xu Fumin Zhang Changkuan Mao Lihua Tao Jianfeng | 2008 | Water Science and Engineering2008，1，1： | 2 |
| 6 | Integrative taxonomy of the Plain-backed Thrush(Zoothera mollissima)complex(Aves,Turdidae)reveals cryptic species,including a new species显示文摘Background: The Plain-backed Thrush Zoothera mollissima breeds in the Himalayas and mountains of central China. It was long considered conspecific with the Long-tailed Thrush Zoothera dixoni, until these were shown to be broadly sympatric.Methods: We revise the Z. mollissima–Z. dixoni complex by integrating morphological, acoustic, genetic(two mitochondrial and two nuclear markers), ecological and distributional datasets.Results: In earlier field observations, we noted two very different song types of 'Plain-backed' Thrush segregated by breeding habitat and elevation. Further integrative analyses congruently identify three groups: an alpine breeder in the Himalayas and Sichuan, China('Alpine Thrush'); a forest breeder in the eastern Himalayas and northwest Yunnan(at least), China('Himalayan Forest Thrush'); and a forest breeder in central Sichuan('Sichuan Forest Thrush'). Alpine and Himalayan Forest Thrushes are broadly sympatric, but segregated by habitat and altitude, and the same is probably true also for Alpine and Sichuan Forest Thrushes. These three groups differ markedly in morphology and songs. In addition, DNA sequence data from three non-breeding specimens from Yunnan indicate that yet another lineage exists('Yunnan Thrush'). However, we find no consistent morphological differences from Alpine Thrush, and its breeding range is unknown. Molecular phylogenetic analyses suggest that all four groups diverged at least a few million years ago, and identify Alpine Thrush and the putative 'Yunnan Thrush' as sisters, and the two forest taxa as sisters. Cytochrome b divergences among the four Z. mollissima sensu lato(s.l.) clades are similar to those between any of them and Z. dixoni, and exceed that between the two congeneric outgroup species. We lectotypify the name Oreocincla rostrata Hodgson, 1845 with the Z. mollissima sensu stricto(s.s.) specimen long considered its type. No available name unambiguously pertains to the Himalayan Forest Thrush.Conclusions: The Plain-backed Thrush Z. mollissima s.l. comprises at least three species: Alpine Thrush Z. mollissima s.s., with a widespread alpine breeding distribution; Sichuan Forest Thrush Z. griseiceps, breeding in central Sichuan forests; and Himalayan Forest Thrush, breeding in the eastern Himalayas and northwest Yunnan(at least), which is described herein as a new species. 'Yunnan Thrush' requires further study. | Per Alstrom Pamela C.Rasmussen Chao Zhao Jingzi Xu Shashank Dalvi Tianlong Cai Yuyan Guan Ruiying Zhang Mikhail V.Kalyakin Fumin Lei Urban Olsson | 2016 | Chinese Birds2016，，1： | 2 |
| 7 | Enhanced biodegradation behavior of ultrafne-grained ZE41A magnesium alloy in Hank's solution显示文摘The biodegradation behavior of an ultrafne-grained(UFG) magnesium alloy ZE41A containing rare-earth(RE),obtained through multi-pass of equal channel angular pressing(EACP),was investigated by electrochemical measurements in Hank's solution.The highest value of charge transfer resistance was obtained in the electrochemical impedance spectroscopy plots of the ECAPed samples with the largest pressing pass,while a movement of corrosion potential toward noble direction and a decrement of corrosion current density were observed in the potentiodynamic polarization curves of the ECAPed samples with further pressing passes.These results indicated that ECAP could be an effcient way to reduce the biodegradation rate of the ZE41A alloy. | Fan Zhang Aibin Ma Jinghua Jiang Honglu Xu Dan Song Fumin Lu Yoshinori Nishida | 2013 | Progress in Natural Science:Materials International2013，23，4： | 2 |
| 8 | Genetic and Geographic Patterns of Duplicate DPL Genes Causing Genetic Incompatibility Within Rice:Implications for Multiple Domestication Events in Rice显示文摘Strong genetic incompatibilities exist between two primary rice subspecies,indica and japonica.However,the wild ancestors of rice,O.nivara Sharma et Shastry and O.rufipogon Griff.,are genetically compatible.How this genetic incompatibility became established has not been clearly elucidated.To provide insights into the process,we analyzed a pair of hybrid sterility genes in rice,DOPPELGANGER 1(DPL1)and DOPPELGANGER 2(DPL2).Either of the two loci can have one defective allele(DPL1-and DPL2-).Hybrid pollen carrying both DPL1-and DPL2-alleles is sterile.To explore the origination of DPL1-and DPL2-,we sequenced the DPL1 and DPL2 genes of 811 individual plants,including Oryza sativa(132),O.nivara(296)and O.rufipogon(383).We then obtained 20 DPL1 and 34 DPL2 sequences of O.sativa from online databases.Using these sequences,we analyzed the genetic and geographic distribution patterns of DPL genes in modern rice and its wild ancestors.Compared with the ancestral populations,DPL1-and DPL2-showed reduced diversity but increased frequency in modern rice.We speculated that the diversity reduction was due to a historic genetic bottleneck,and the frequency had likely increased because the defective alleles were preferred following this artificial selection.Such results indicated that standing variances in ancestral lines can lead to severe incompatibilities among descendants.Haplotype analysis indicated that the DPL1-haplotype of rice emerged from an O.nivara population in India,whereas the DPL2-haplotype emerged from O.rufipogon in South China.Hence,the evolutionary history of DPLs conforms to the presumed multiple domestication events of modern rice. | Xu Xun Ge Song Zhang Fumin | 2021 | Rice science2021，28，1： | 1 |
| 9 | Multilevel iteration methods for solving integral equations of the second kind显示文摘 | FANG Weifu MA Fumin XU Yuesheng | 2002 | J Integral Equations Appl2002，14，： | 1 |
| 10 | The influence of water soluble pentosan on viscoelasticity of gluten显示文摘 | MA Fumin XU Shiying XU Meiling | 2012 | Journal of Food Engineering2012，111，1： | 1 |
| 11 | Influence of heat treatment on microstructure and mechanical properties of Al/Al-Cu graded materials显示文摘Five-layered Al/Al-Cu functionally graded material (FGM) was prepared by powder metallurgy technology, and the subsequent heat treatment was carried out for the graded material. The microstructures and distribution of Cu element under pressure sintering (F), solution treatment (T4) and artificial aging treatment (T6) were investigated, and the Vickers hardness and flexural properties of different states were tested. The results showed that sintered compact with dense structure and compositional continuous change was obtained. The second-phase CuAl 2 was dispersively distributed along grain boundary of Al matrix. After solution treatment at 503 C for 3 h, CuAl 2 phase obviously decreased and dissolved into the Al matrix, and the flexural strength was thereupon enhanced to 228.5 MPa. With the subsequent aging treatment at 150 C for 15 h, the majority of flake shaped precipitates θ phases were uniformly distributed in the matrix. And the distribution of Cu element became gradual continuous compared to sintered compact. Meanwhile, the flexural strength increased further, which accompanied with the decline of plasticity. | Qian CONG Fumin XU Yi TAN Xiaolei SHI Wei DONG Jiayan LI Junshan ZHANG | 2011 | Acta Metallurgica Sinica(English Letters)2011，24，2： | 1 |
| 12 | Application of MEP Method to the Study of statistical Properties of Random Waves显示文摘—The maximum entropy principle(MEP)method and the corresponding probability evaluationmethod are introduced,and the maximum entropy probability distribution expression is deduced in mo-ment of the second order.Fully developed wave height distribution in deep water and wave height and peri-od distribution for different depths in wind wave channel experiment are obtained from the MEP method,and the results are compared with the distribution and the experimental histogram.The waveheight and period distribution for the Lianyungang port is also obtained by the MEP method,and the re-sults are compared with the Weibull distribution and the field histogram. | XU Fumin Ph. D., College of Harbor Waterway and Coastal Engineering, Hohai University, Nanjing 210098, P. R. China. | 1999 | China Ocean Engineering1999，14，1： | 1 |
| 13 | Transformation of Wave Energy Spectrum in Shallow Water显示文摘- Combined with irregular wave-maker, the growing process of Wave Energy Spectrum in shallow water can be studied in wind wave channel on different water depth conditions, and its transformation characteristics and rules can be obtained. | Xue Hongchao , Su Dehui Xu Fumin Professor, Research Institute of Coastal and Ocean Engineering, Hohai University, Nanjing 210024 Doctor, Dept. of Navigation and Ocean Engineering, Hohai University, Nanjing 210024 Ph. D. Student, Dept. of Navigation and Ocean Engineering, Hohai University, Nanjing 210024 | 1995 | China Ocean Engineering1995，10，3： | 1 |
| 14 | Extraction and imaging of indicator elements for non-destructive,in-situ,fast identification of adverse geology in tunnels显示文摘The lag in quantitative methods and detection techniques for geologic information has resulted in time-consuming and human-experienced geologic analysis in tunnels.Geochemical indicators of rocks can be used to identify adverse geology and to explain the intrinsic causes of damage to normal rocks.This study proposes a method to identify adverse geology by extracting and imaging the indicator elements.The mapping relationship between rock components and geologic bodies is quickly determined by indicator element extraction based on factor analysis,and then the data are gridded for image output.The location and size of the target adverse geology are visually identified through the distribution images of the indicator elements,thus reducing data dimensions and analysis time.A non-destructive,in-situ and fast element detection technique in tunnels was adopted to speed up the process of geology identification.The accuracy of the detection was validated by comparing field and laboratory test results.This study further confirms and refines the previous research,and the results provide references for geological,mining and underground projects. | Fumin Liu Peng Lin Zhenhao Xu Ruiqi Shao Tao Han | 2023 | International Journal of Mining Science and Technology2023，33，12： | 0 |
| 15 | An extended time-dependent numerical model of the mild-slope equation with weakly nonlinear amplitude dispersion显示文摘In the present paper, by introducing the effective wave elevation, we transform the extended ellip- tic mild-slope equation with bottom friction, wave breaking and steep or rapidly varying bottom topography to the simplest time-dependent hyperbolic equation. Based on this equation and the empirical nonlinear amplitude dispersion relation proposed by Li et al. (2003), the numerical scheme is established. Error analysis by Taylor expansion method shows that the numerical stability of the present model succeeds the merits in Song et al. (2007)’s model because of the introduced dissipation terms. For the purpose of verifying its performance on wave nonlinearity, rapidly vary- ing topography and wave breaking, the present model is applied to study: (1) wave refraction and diffraction over a submerged elliptic shoal on a slope (Berkhoff et al., 1982); (2) Bragg reflection of monochromatic waves from the sinusoidal ripples (Davies and Heathershaw, 1985); (3) wave transformation near a shore attached breakwater (Watanabe and Maruyama, 1986). Comparisons of the numerical solutions with the experimental or theoretical ones or with those of other models (REF/DIF model and FUNWAVE model) show good results, which indicate that the present model is capable of giving favorably predictions of wave refraction, diffraction, reflection, shoaling, bottom friction, breaking energy dissipation and weak nonlinearity in the near shore zone. | ZHAO Hongjun SONG Zhiyao XU Fumin LI Ruijie | 2010 | Acta Oceanologica Sinica2010，29，2： | 0 |
| 16 | Microstructures and mechanical properties of low carbon fishplate materials显示文摘Two kinds of low carbon bainite materials were developed for fishplate usage.The microstructures and mechanical properties were measured in details.The results showed that one material was composed of fine granular bainite with the yield strength of 722 MPa at room temperature and 738 MPa at-55℃, and elongation percentages of 60.7% and 41.7%, respectively.The other one had a meta-bainite microstructure with corresponding strengths of 568.5 MPa and 700 MPa, elongation percentages of 63.5% and 67.1%, respectively.These values are all superior to the home-made B7 steel and the fishplate materials made in Japan.The major strengthening mechanisms were discussed and attributed to the solid solution, complex phases, fine grain and dislocation strengthening. | Fumin XU Kai WEN Yi TAN | 2010 | Acta Metallurgica Sinica(English Letters)2010，23，3： | 0 |
| 17 | CASCIRE surveillance network and work on avian influenza viruses显示文摘Studies on influenza virus by Chinese Academy of Sciences(CAS)could be traced back as early as 2005 by the CAS Key Laboratory of Pathogenic Microbiology and Immunology(CASPMI),who discovered that Qinghai-like Clade 2.2H5N1 subtype highly pathogenic avian influenza virus(HPAIV)first caused severe outbreak in wild birds in Qinghai Lake(Liu et al.,2005). | Yuhai Bi Weifeng Shi Jianjun Chen Quanjiao Chen Zhenghai Ma Gary Wong Wenxia Tian Renfu Yin Guanghua Fu Yongchun Yang William J.Liu Chuansong Quan Qianli Wang Shenghu He Xiangdong Li Qianfeng Xia Lixin Wang Zhaohui Pan Laixing Li Hong Li Wen Xu Ying Luo Hui Zeng Lianpan Dai Haixia Xiao Kirill Sharshov Alexander Shestopalov Yi Shi Jinghua Yan Xuebing Li Yingxia Liu Fumin Lei Wenjun Liu George F.Gao | 2017 | Science China(Life Sciences)2017，60，12： | 0 |
| 18 | Marine information technology:the best is yet to come显示文摘Marine information technology(MarineIT)involves marine information gathering,transmission,processing,and fusion.Traditionally,this topic has been referred to in the context of acoustic,optical,and electromagnetic sensing of the ocean environment,most notably sonar/radar processing and satellite remote sensing.As its embodiment becomes enriched and its scope extends,particularly accompanied | Wen XU Yuan-liang MA Fumin ZHANG Daniel ROUSEFF Fei JI Jun-hong CUI Hussein YAHIA | 2018 | Frontiers of Information Technology & Electronic Engineering2018，19，8： | 0 |
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