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23篇 您的检索式:作者名="Xue Xiangyu"
    题名 作者 年代 出处 被引量
1Low-Rank and Sparse Representation with Adaptive Neighborhood Regularization for Hyperspectral Image Classification显示文摘Low-Rank and Sparse Representation(LRSR)method has gained popularity in Hyperspectral Image(HSI)processing.However,existing LRSR models rarely exploited spectral-spatial classification of HSI.In this paper,we proposed a novel Low-Rank and Sparse Representation with Adaptive Neighborhood Regularization(LRSR-ANR)method for HSI classification.In the proposed method,we first represent the hyperspectral data via LRSR since it combines both sparsity and low-rankness to maintain global and local data structures simultaneously.The LRSR is optimized by using a mixed Gauss-Seidel and Jacobian Alternating Direction Method of Multipliers(M-ADMM),which converges faster than ADMM.Then to incorporate the spatial information,an ANR scheme is designed by combining Euclidean and Cosine distance metrics to reduce the mixed pixels within a neighborhood.Lastly,the predicted labels are determined by jointly considering the homogeneous pixels in the classification rule of the minimum reconstruction error.Experimental results based on three popular hyperspectral images demonstrate that the proposed method outperforms other related methods in terms of classification accuracy and generalization performance.Zhaohui XUE Xiangyu NIE 2022Journal of Geodesy and Geoinformation Science2022,5,1:6
2Recent Development in X-Ray Imaging Technology:Future and Challenges显示文摘X-ray imaging is a low-cost,powerful technology that has been extensively used in medical diagnosis and industrial nondestructive inspection.The ability of X-rays to penetrate through the body presents great advances for noninvasive imaging of its internal structure.In particular,the technological importance of X-ray imaging has led to the rapid development of highperformance X-ray detectors and the associated imaging applications.Here,we present an overview of the recent development of X-ray imaging-related technologies since the discovery of X-rays in the 1890s and discuss the fundamental mechanism of diverse X-ray imaging instruments,as well as their advantages and disadvantages on X-ray imaging performance.We also highlight various applications of advanced X-ray imaging in a diversity of fields.We further discuss future research directions and challenges in developing advanced next-generation materials that are crucial to the fabrication of flexible,low-dose,highresolution X-ray imaging detectors.Xiangyu Ou Xue Chen Xianning Xu Lili Xie Xiaofeng Chen Zhongzhu Hong Hua Bai Xiaowang Liu Qiushui Chen Lin Li Huanghao Yang 2021Research2021,,1:5
3Synthesis of Mg-Al-carbonate layered double hydroxide by an atom-economic reaction显示文摘A clean method for preparing layered double hydroxides (LDHs) has been developed, featured by using the hydroxides of two different metals as starting materials by atom-economic reactions. The reactions were carried out under hydrothermal conditions in either a high pressure autoclave or a microwave digester. The compositions, structural parameters and thermal behavior of the resulting LDHs are very similar to those of materials produced by using the separate nucleation and aging steps (SNAS) method. The major advantage of the new method is that no by-product is produced, so that filtration and washing processes are unnecessary. The consequent reduction in water consumption is beneficial to the environment.Xiangyu Xu Dianqing Li Jiaqing Song Yanjun Lin Zhi Lv Min Wei Xue Duan 2010Particuology2010,8,3:4
4High-resistance controlled yielding supporting technique in deep-well oil shale roadways显示文摘In order to avoid the deep-well oil shale roadway being deformed, damaged, or difficult to maintain after excavating and supporting in Haishiwan coal mine, this paper has analyzed the characteristics of the deformed roadway and revealed its failure mechanism by taking comprehensively the methods of field geological investigation, displacement monitoring of surrounding rock, rock properties and hydration properties experiments and field application tests. Based on this work, the high-resistance controlled yielding supporting principle is proposed, which is: to ‘‘resist'' by high pre-tightening force and high stiffness in the early stage, to ‘‘yield'' by making use of the controlled deformation of a yielding tube in the middle stage, and to ‘‘fix'' by applying total-section Gunite in the later stage. A high-resistance controlled yielding supporting technique of ‘‘high pre-tightening force yielding anchor bolt + small-bore pre-tightening force anchor cable + rebar ladder beam + rhombic metal mesh + lagging gunite'' has been established, and industrial on site testing implemented. The practical results show that the high-resistance controlled yielding supporting technique can effectively control the large deformation and long-time rheology of deep-well oil shale roadways and can provide beneficial references for the maintenance of other con-generic roadways.Yu Yang Bai Jianbiao Wang Xiangyu Wang Junde Xue Shizhi Xu Ke 2014International Journal of Mining Science and Technology2014,24,2:3
5Application of biochar from sewage sludge to plant cultivation:Influence of pyrolysis temperature and biochar-to-soil ratio on yield and heavy metal accumulation显示文摘Song Xueding Xue Xiangyu Chen Dezhen 2014Chemosphere2014,109,:1
6Monitoring of Gene Expression Profiles and Isolation of Candidate Genes Involved in Pollination and Fertilization in Rice (Oryza Sativa L.) with a 10K cDNA Microarray显示文摘Lefu Lan Wei Chen Ying Lai Jinfeng Suo Zhaosheng Kong Can Li Ying Lu Yujun Zhang Xiangyu Zhao Xiansheng Zhang Yansheng Zhang Bin Han Jing Cheng Yongbiao Xue 2004Plant Molecular Biology2004,,4:1
7Halogen Storage Electrode Materials for Rechargeable Batteries显示文摘The ever-increasing demand for rechargeable batteries with high energy density,abundant resources,and high safety has pushed the development of various battery technologies based on cation,anion,or dual-ion transfer.The use of halogen storage electrode materials has led to new concept battery systems such as halide-ion batteries(HIB)and dual-ion batteries(DIB).This review highlights the recent progress on these electrode materials,including metal(oxy)halides,layered double hydroxides,MXenes,graphite-based materials,and organic materials with carbon or nitrogen redox centers.The reversible electrochemical halogen storage of halide ions(e.g.,F^(−),Cl^(−),and Br^(−)),dual halogen(e.g.,Br_(m)Cl_(n) and [ICl_(2)]^(−)),or binary halide anions(e.g.,PF_(6)^(−),AlCl_(4)^(−),[ZnCl_(x)]^(2−x),and [MgCl_(x)]^(2−x)) in the electrodes is covered.The challenges and mechanisms of halogen storage in various electrode materials in HIBs and DIBs are summarized and analyzed,providing insights into the development of high-performance halogen storage electrode materials for rechargeable batteries.Zhiyang Xue Zhengyuan Gao Xiangyu Zhao 2022Energy & Environmental Materials2022,5,4:1
8Monitoring of Gene Expression Profiles and Isolation of Candidate Genes Involved in Pollination and Fertilization in Rice (Oryza Sativa L.) with a 10K cDNA Microarray显示文摘Lefu Lan Wei Chen Ying Lai Jinfeng Suo Zhaosheng Kong Can Li Ying Lu Yujun Zhang Xiangyu Zhao Xiansheng Zhang Yansheng Zhang Bin Han Jing Cheng Yongbiao Xue 2004Plant Molecular Biology2004,,4:1
9Monitoring of Gene Expression Profiles and Isolation of Candidate Genes Involved in Pollination and Fertilization in Rice (Oryza Sativa L.) with a 10K cDNA Microarray显示文摘Lefu Lan Wei Chen Ying Lai Jinfeng Suo Zhaosheng Kong Can Li Ying Lu Yujun Zhang Xiangyu Zhao Xiansheng Zhang Yansheng Zhang Bin Han Jing Cheng Yongbiao Xue 2004Plant Molecular Biology2004,,4:1
10Low Li ion diffusion barrier on low-crystalline FeOOH nanosheets and high performance of energy storage显示文摘To obtain symmetric supercapacitors(SCs)with high energy density,it is critical to fabricate an electrode with wide potential window and excellent capacitive performance.Herein,by using the strong double hydrolysis reaction between anions and cations,the FeOOH nanosheets on the surface of activated carbon cloth(FeOOH@AC)are prepared through a simple hydrothermal process.The FeOOH@AC electrode exhibits maximum capacitance of 4,090 mF·cm^−2 at wider potential window-1–0 V and 3,250 mF·cm^−2 at 0–1 V versus SCE in 2 M LiNO3 electrolyte.With two pieces of FeOOH@AC electrodes the obtained symmetric SC can operate at the voltage window of 2 V.This FeOOH symmetric SC shows high energy density of 13.261 mWh·cm^−3 at a power density of 14.824 mW·cm^−3 and maintains 4.175 mWh·cm^−3 at a maximum power density of 118.564 mW·cm^−3,as well as excellent charge storage capacity and cyclic stability.Li ion adsorption and diffusion mechanism on the(200)facets of FeOOH are explained by the density functional theory(DFT)calculations.The simple synthesis process and excellent capacitance performance of the FeOOH@AC composite make it a very promising candidate for high performance symmetric SC electrodes.Jien Li Shuang Luo Congcong Wang Qian Tang Yanwei Wang Xiangyu Han Hao Ran Jing Wan Xiao Gu Xue Wang Chenguo Hu 2020Nano Research2020,13,3:1
11Nanocage structure derived from sulfonated beta-cyclodextrin intercalated layered double hydroxides and selective adsorption for phenol compounds显示文摘Xue Xiangyu Gu Qingyang Pan Guohua 2014Inorg Chem2014,53,3:1
12Effects of surface modification on the properties of magnetic nanoparticles/PLA composite drug carriers and in vitro controlled release study显示文摘Xiangyu Zhang Li Xue Jun Wang 2013Colloids and Surfaces A:Physicochemical and Engineering Aspects2013,431,:1
13Cloning and Functional Characterization of Chalcone Isomerase Genes Involved in Anthocyanin Biosynthesis in Clivia miniata显示文摘Chalcone isomerase(CHI),catalyzing isomerization of chalcones,is a crucial enzyme in flavonoid biosynthesis.Three CHI genes were isolated from Clivia miniata and designated as CmCHI1,CmCHI2 and CmCHI3,respectively.Multiple sequence alignments and phylogenetic analysis showed that CmCHI1 and CmCHI2 were members of type I CHI proteins,whereas CmCHI3 belonged to type IV CHI proteins.Subcellular localization analysis found that all three CmCHIs had diffused distribution in the cytoplasm similar to green fluorescent protein(GFP).Anthocyanin biosynthesis and gene expression analysis demonstrated that CmCHIs were highly expressed in anthocyanin accumulated tissues.To further functionally characterize the role of CmCHIs,an in vitro enzymatic activity assay was carried out using the purified recombinant proteins.Results showed that CmCHI1 and CmCHI2 could completely convert the substrate naringenin chalcone(NC)into the product naringenin(NA),whereas CmCHI3 seemed nonfunctional as no increment of NA was detected.Further genetic transformation of Arabidopsis tt5-1 mutant validated that CmCHI1 and CmCHI2 rather than CmCHI3 could complement the chi deficient phenotypes.In summary,CmCHI1 and CmCHI2 are the real active CHI genes in Clivia miniata.The results not only broaden our knowledge on flavonoid biosynthesis in C.miniata but also lay a new foundation for further flavonoid modification in C.miniata.Yue Liu Xinxin Xue Chunli Zhao Jia Zhang Meng Liu Xiangyu Li Yueqing Li Xiang Gao 2021Ornamental Plant Research2021,1,1:1
14Physiological and transcriptional responses to heat stress in a typical phenotype of Pinellia ternata显示文摘Pinellia ternata is an important medicinal plant,and its growth and development are easily threatened by high temperature.In this study,comprehensive research on physiological,cytological and transcriptional responses to different levels of heat stress were conducted on a typical phenotype of P.ternata.First,P.ternata exhibited tolerance to the increased temperature,which was supported by normal growing leaves,as well as decreased and sustained photosynthetic parameters.Severe stress aggravated the damages,and P.ternata displayed an obvious leaf senescence phenotype,with significantly increased SOD and POD activities(46%and 213%).In addition,mesophyll cells were seriously damaged,chloroplast thylakoid was fuzzy,grana lamellae and stroma lamellae were obviously broken,and grana thylakoids were stacked,resulting in a dramatically declined photosynthetic rate(74.6%).Moreover,a total of 16808 genes were significantly differential expressed during this process,most of which were involved in photosynthesis,transmembrane transporter activity and plastid metabolism.The number of differentially expressed transcription factors in MYB and bHLH families was the largest,indicating that these genes might participate in heat stress response in P.ternata.These findings provide insight into the response to high temperature and facilitate the standardized cultivation of P.ternata.WANG Jialu CHEN Jialei ZHANG Xiangyu FENG Xue LI Xiwen 2023Chinese Journal of Natural Medicines2023,21,4:0
15Effect of long-period stacking ordered structure on very high cycle fatigue properties of Mg-Gd-Y-Zn-Zr alloys显示文摘Magnesium alloys with a long-period stacking ordered(LPSO)structure usually possess excellent static strength,but their fatigue behaviors are poorly understood.This work presents the effect of the LPSO structure on the crack behaviors of Mg alloys in a very high cycle fatigue(VHCF)regime.The LPSO lamellas lead to a facet-like cracking process along the basal planes at the crack initiation site and strongly prohibit the early crack propagation by deflecting the growth direction.The stress intensity factor at the periphery of the faceted area is much higher than the conventional LPSO-free Mg alloys,contributing higher fatigue crack propagation threshold of LPSO-containing Mg alloys.Microstructure observation at the facets reveals a layer of ultrafine grains at the fracture surface due to the cyclic contact of the crack surface,which supports the numerous cyclic pressing model describing the VHCF crack initiation behavior.Xiangyu WANG Chao HE Xue Li Lang LI Yongjie LIU Qingyuan WANG 2023Journal of Magnesium and Alloys2023,11,8:0
16Named entity recognition for Chinese construction documents based on conditional random field显示文摘Named entity recognition(NER)is essential in many natural language processing(NLP)tasks such as information extraction and document classification.A construction document usually contains critical named entities,and an effective NER method can provide a solid foundation for downstream applications to improve construction management efficiency.This study presents a NER method for Chinese construction documents based on conditional random field(CRF),including a corpus design pipeline and a CRF model.The corpus design pipeline identifies typical NER tasks in construction management,enables word-based tokenization,and controls the annotation consistency with a newly designed annotating specification.The CRF model engineers nine transformation features and seven classes of state features,covering the impacts of word position,part-of-speech(POS),and word/character states within the context.The F1-measure on a labeled construction data set is 87.9%.Furthermore,as more domain knowledge features are infused,the marginal performance improvement of including POS information will decrease,leading to a promising research direction of POS customization to improve NLP performance with limited data.Qiqi ZHANG Cong XUE Xing SU Peng ZHOU Xiangyu WANG Jiansong ZHANG 2023Frontiers of Engineering Management2023,10,2:0
17Original askiatic imaging used in Chinese medicine eye-feature diagnosis of visceral diseases显示文摘Eye-feature diagnosis is a time-homored met hod for studying many diseases in tradit ional Chinese medicine.There is a dlose relationship between eye feature and viscera,and eye feature is a reflect ion of viscer al health status.Commercially used ophthalmology diagnosis instr uments have disadvantages and cannot satisfy the requirements of eye feature diagnosis.In this paper,we proposed a novel askiatic imaging method that removes the interference of an ilumination source's reflection shadow and is free from image splicing.We developed a novel imaging system to implement this method,and some eye feature characteristics to analyze visceral diseases were obtained.Ning Xue Kai Jiang Qi Li Lili Zhang Li Ma Ruliang Wang Rongxin Fu Xue Lin Ya Su Xiangyu Jin Rongzan Lin Guoliang Huang 2018Journal of Innovative Optical Health Sciences2018,,4:0
18Ion Channel Dysregulation Following Intracerebral Hemorrhage显示文摘Injury to the brain after intracerebral hemorrhage(ICH)results from numerous complex cellular mechanisms.At present,effective therapy for ICH is limited and a better understanding of the mechanisms of brain injury is necessary to improve prognosis.There is increasing evidence that ion channel dysregulation occurs at multiple stages in primary and secondary brain injury following ICH.Ion channels such as TWIK-related K+channel 1,sulfonylurea 1 transient receptor potential melastatin 4 and glutamate-gated channels affect ion homeostasis in ICH.They in turn participate in the formation of brain edema,disruption of the blood-brain barrier,and the generation of neurotoxicity.In this review,we summarize the interaction between ions and ion channels,the effects of ion channel dysregulation,and we discuss some therapeutics based on ion-channel modulation following ICH.Xiangyu Zhang Yan Zhang Qiuyang Su Yang Liu Zhe Li V.Wee Yong Mengzhou Xue 2024Neuroscience Bulletin2024,40,3:0
19Recent Development in X-Ray Imaging Technology: Future and Challenges显示文摘X-ray imaging is a low-cost,powerful technology that has been extensively used in medical diagnosis and industrial nondestructive inspection.The ability of X-rays to penetrate through the body presents great advances for noninvasive imaging of its internal structure.In particular,the technological importance of X-ray imaging has led to the rapid development of highperformance X-ray detectors and the associated imaging applications.Here,we present an overview of the recent development of X-ray imaging-related technologies since the discovery of X-rays in the 1890s and discuss the fundamental mechanism of diverse X-ray imaging instruments,as well as their advantages and disadvantages on X-ray imaging performance.We also highlight various applications of advanced X-ray imaging in a diversity of fields.We further discuss future research directions and challenges in developing advanced next-generation materials that are crucial to the fabrication of flexible,low-dose,highresolution X-ray imaging detectors.Xiangyu Ou Xue Chen Xianning Xu Lili Xie Xiaofeng Chen Zhongzhu Hong Hua Bai Xiaowang Liu Qiushui Chen Lin Li Huanghao Yang 2022Research2022,,1:0
20Improvement of synergistic effect photocatalytic/peroxymonosulfate activation for degradation of amoxicillin using carbon dots anchored on rod-like CoFe_(2)O_(4)显示文摘β-lactam antibiotics in aquatic environment have severely damaged ecological stability and caused a series of environmental pollution problems to be solved urgently.Herein,a novel composite photocatalyst prepared by loading carbon dots(CDs)onto rod-like CoFe_(2)O_(4)(CFO),which can effectively degrade amoxicillin(AMX)by photocata lytic/peroxy mono sulfate(PMS)activation under visible light irradiation.The degradation results exhibits that the optimal degradation efficiency with 97.5%within 80 min is achievd by the CDs-CFO-5 composite.Such enhanced activity is ascribed to the introduction of CDs that effectively improves the separation efficiency of photogenerated electron pairs and creates new active sites as electron bridges that improve the photocata lytic performance.More importantly,a strong synergistic between CDs and photo-induced electrons generated from CFO can further activiate PMS to provide more SO4-·and·OH radicals for boosting the degradation ability towards AMX.The present study aims to elucidate positive role of CDs in photocata lytic/peroxy monosulfate activation during the degradation reaction.Weilong Shi Yanan Liu Wei Sun Yuanzhi Hong Xiangyu Li Xue Lin Feng Guo Junyou Shi 2022Chinese Journal of Chemical Engineering2022,,12:0
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