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17篇 您的检索式:作者名="Yinqing Li"
    题名 作者 年代 出处 被引量
1AN INVESTIGATION OF RETINEX ALGORITHMS FOR IMAGE ENHANCEMENT显示文摘This letter introduces color constancy and Retinex theory for image enhancement.It clas- sifies Retinex algorithms into four categories and provides their principles and implementations in general.The experimental results of Frankle-McCann,MSR (Multi-Scale Retinex) and PNSD (Pro- jected Normalized Steepest Descent) Retinex algorithms are presented and compared.Moreover, variance and average gradient are proposed to evaluate the performance of the different algorithms.Lei Ling Zhou Yinqing Li Jingwen 2007Journal of Electronics(China)2007,24,5:9
2A Novel Speckle Filter for SAR Images Based on Information-theoretic Heterogeneity Measurements显示文摘自适应斑点抑制方法通常基于局域变差系数实现SAR图像的异质性测量。但是这种测量方法对斑点噪声较为敏感,从而影响斑点抑制性能。本文从信息论的角度出发,提出了一种新的定量化测量SAR图像异质性参数的指标,进而提出了一种基于定量化异质性测量的斑点噪声抑制算法(HBSRF)。该算法首先以基于信息论的异质性测量为标准将SAR图像区分为同质区域和异质区域,然后利用有限迭代处理和边沿保持算法来实现斑点抑制和边沿保持性能的最优化。计算机仿真实验结果表明:该算法与经典的基于局域变差系数的斑点抑制算法相比,具有更好的抑制斑点噪声和保持边沿细节的处理性能,是一种有效的斑点抑制滤波算法。Chen Jie Zhu Jing Li Chunsheng Zhou Yinqing 2009Chinese Journal of Aeronautics2009,22,5:3
3The gap-free potato genome assembly reveals large tandem gene clusters of agronomical importance in highly repeated genomic regions显示文摘Dear Editor,Potato is a vital food security crop and is ranked as the world’s third most important food crop after rice and wheat.In 2011,the first genome assembly of a doubled monoploid potato DM1-3516 R44(DM)was released(Potato Genome Sequencing Consortium,2011),which has been widely used as one of the most popular reference genomes in the last decade and served as a valuable resource in plant genomics and potato genetics community(Leisner et al.,2018;Yang et al.,2020;Zheng et al.,2020).Xiaohui Yang Lingkui Zhang Xiao Guo Jianfei Xu Kang Zhang Yinqing Yang Yu Yang Yinqiao Jian Daofeng Dong Sanwen Huang Feng Cheng Guangcun Li 2023Molecular Plant2023,16,2:2
4Rhesus monkeys exhibiting spontaneous ritualistic behaviors resembling obsessive-compulsive disorder显示文摘Obsessive-compulsive disorder(OCD)is a chronic and debilitating psychiatric disorder that affects∼2%–3%of the population globally.Studying spontaneous OCD-like behaviors in non-human primates may improve our understanding of the disorder.In large rhesus monkey colonies,we found 10 monkeys spontaneously exhibiting persistent sequential motor behaviors(SMBs)in individual-specific sequences that were repetitive,time-consuming and stable over prolonged periods.Genetic analysis revealed severely damaging mutations in genes associated with OCD risk in humans.Brain imaging showed that monkeys with SMBs had larger gray matter(GM)volumes in the left caudate nucleus and lower fractional anisotropy of the corpus callosum.The GM volume of the left caudate nucleus correlated positively with the daily duration of SMBs.Notably,exposure to a stressor(human presence)significantly increased SMBs.In addition,fluoxetine,a serotonergic medication commonly used for OCD,decreased SMBs in these monkeys.These findings provide a novel foundation for developing better understanding and treatment of OCD.Rongwei Zhai Geya Tong Zheqin Li Weichen Song Yang Hu Sha Xu Qiqi Wei Xiaocheng Zhang Yi Li Bingbing Liao Chenyu Yuan Yinqing Fan Ge Song Yinyin Ouyang Wenxuan Zhang Yaqiu Tang Minghui Jin Yuxian Zhang He Li Zhi Yang Guan Ning Lin Dan JStein Zhi-Qi Xiong Zhen Wang 2023National Science Review2023,10,11:1
5NEW METHOD OF FORMATION DESIGN FOR BOTH GMTI AND INSAR USING DISTRIBUTED SATELLITES显示文摘This letter proposes a method for designing a specific formation of satellites where the flying motion only exists in a circle orbit plane of the reference satellite, which means that the orbit eccen- tricity is zero. This method combines the Hill equation, the Kepler equation, and the geometrical meaning of orbit elements. It creates the redundancy condition to simplify the deducing process, utilizes multiple conditions to solve the orbit elements for the satellite formation, and obtains the analytical relationship of the orbit elements for the formation satellites with the formation parameters and the orbit elements of the reference satellite. Using these formulations, the orbit elements and formation parameters for the formation satellites can be solved for the given orbit elements of the reference satellite. The letter describes the proposed double-ellipse formation for both GMTI and InSAR, and the validity of the formation is demonstrated via simulation.Yuan Hao Zhou Yinqing Li Jingwen Sun Muhan 2007Journal of Electronics(China)2007,24,6:1
6Microstructure noise in the continuous case: The pre-averaging ap- proach显示文摘Jacod J Li Yinqing Mykland P A 2009Stochastic Processes and their Applications2009,119,7:1
7Preventive and thempeutic effects of antler collagen on osteoporosis in ovariectomized rats显示文摘Yinqing Li Yu Zhao Rermeng Tang 2010African Journal of Biotechnology 20 September2010,38,9:1
8Pharmacokineties of ferulic acid and potential interactions with Honghua and clopidogrel in rats 显示文摘Yanhong Li Changhui Liu Yinqing Zhang 2011J Ethnopharmacol2011,137,:1
9Space- borne synthetic aperture radar received data simulation based on airborne SAR image data显示文摘CHEN JIE ZHOU YINQING LI CHUNSHENG 2008Advances in Space Research2008,41,11:1
10Geochemical Characteristics of the Ore-forming Fluids of the Haigou Gold Deposit, Jilin显示文摘The quartz in the Haigou gold deposit contains a great abundance of three-phase CO2-NaCl-H2O and two-phase CO2-rich inclusions, which are associated with two-phase NaCl-H2O ones. The ore-forming fluids, which were rich in CO2, are classified into two types with two different sources: the high-salinity CO2-rich NaCl-H2O fluid derived from magmatic hydrothermal solution, and the low-salinity NaCl-H2O fluid from ancient meteoric water. The optimum conditions for gold mineralization are 220-300℃ for the temperature, 4-20 MPa for the fluid static pressure, 1-3 km for the mineralization depth, 2-7 w (NaCl)/10-2 for the fluid salinity, and 0.644 g/cm3 for the total density. The fluid was in a critical or supercritical state at the initial stage of mineralization, and it boiled and was unmixed with CO2 and NaCl-H2O in the climax of mineralization, leading to the decomposition of Au-chlorine complexes and the bulk precipitation of Au.The type, association, homogenization temperature and composition (CO2/H2OLi Yinqing Institute of Mineral Deposits, C AGS, Beijing 1994Acta Geologica Sinica(English Edition)1994,68,3:0
11Explore the dominant factor in prime editing via a view of DNA processing显示文摘Prime editing is a revolutionary gene-editing method that is capable of introducing insertions,deletions and base substitutions into the genome.However,the editing efficiency of Prime Editor(PE)is limited by the DNA repair process.Here,we show that overexpression of the flap structure-specific endonuclease 1(FEN1)and the DNA ligase 1(LIG1)increases the efficiency of prime editing,which is similar to the dominant negative mutL homolog 1(MLH1dn).In addition,MLH1 is still the dominant factor over FEN1 and LIG1 in prime editing.Our results help to further understand the relationship of proteins involved in prime editing and envisage future directions for the development of PE.Zhimeng Xu Dacheng Ma Houzhen Su Xiaodong Jia Yinqing Li Yinying Lu Zhen Xie 2023Synthetic and Systems Biotechnology2023,8,3:0
12A PARAMETER ESTIMATION FOR DETECTION AND IMAGING OF MOVING TARGETS WITH SAR BY WVD显示文摘Based on a joint time-frequency two dimensional processing, this paper proposes a method for the detection and imaging of moving targets SAR by using Wigner-Ville Distribution (WVD). It is a parameter estimation method to generate a high resolution image. The problem of WVD in dealing with multi-point targets and extended targets are also discussed. The computer simulation results illustrate its availability.He Junxiang Li Chunsheng Zhou Yinqing(Dept. of Electronic Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083) 1996Journal of Electronics(China)1996,13,2:0
132019 China Symposium on Single-Cell Genomics显示文摘The China Symposium on Single-Cell Genomics was successfully held in Beijing,on May 25,2019(Figure 1).This conference was initiated by Tsinghua University,chaired by Prof.Xuegong Zhang,and co-organized with Illumina and 10x Genomics.The focus of the symposium was to elicit a discussion on'Building cell atlas,empowering cellular medicine'with single-cell technologies.It consisted of leading experts,10 invited talks and a panel discussion session covering the Human Cell Atlas(HCA)project progress,the latest single-cell profiling technology developments,medical applications,as well as standards,ethics,data sharing and global collaboration.The Symposium brought together upwards of 300 professionals and graduate students as well as over 4,000 online attendants.Yinqing Li Miaomiao Tian 2019Quantitative Biology2019,7,3:0
14Pepper variome reveals the history and key loci associated with fruit domestication and diversification显示文摘Pepper(Capsicum spp.)is an important vegetable crop that provides a unique pungent sensation when eaten.Through construction of a pepper variome map,we examined the main groups that emerged during domestication and breeding of C.annuum,their relationships and temporal succession,and the molecular events underlying the main transitions.The results showed that the initial differentiation in fruit shape and pungency,increase in fruit weight,and transition from erect to pendent fruits,as well as the recent appearance of large,blocky,sweet fruits(bell peppers),were accompanied by strong selection/fixation of key alleles and introgressions in two large genomic regions.Furthermore,we identified Up,which encodes a BIG GRAIN protein involved in auxin transport,as a key domestication gene that controls erect vs pendent fruit orientation.The up mutation gained increased expression especially in the fruit pedicel through a 579-bp sequence deletion in its 5′upstream region,resulting in the phenotype of pendent fruit.The function of Up was confirmed by virus-induced gene silencing.Taken together,these findings constitute a cornerstone for understanding the domestication and differentiation of a key horticultural crop.Yacong Cao Kang Zhang Hailong Yu Shumin Chen Donghui Xu Hong Zhao Zhenghai Zhang Yinqing Yang Xiaozhen Gu Xinyan Liu Haiping Wang Yaxin Jing Yajie Mei Xiang Wang Véronique Lefebvre Weili Zhang Yuan Jin Dongliang An Risheng Wang Paul Bosland Xixiang Li IIan Paran Baoxi Zhang Giovanni Giuliano Lihao Wang Feng Cheng 2022Molecular Plant2022,15,11:0
15Genome Assembly and Population Resequencing Reveal the Geographical Divergence of Shanmei(Rubus corchorifolius)显示文摘Rubus corchorifolius(Shanmei or mountain berry,2n=14)is widely distributed in China,and its fruits possess high nutritional and medicinal values.Here,we reported a highquality chromosome-scale genome assembly of Shanmei,with contig size of 215.69 Mb and 26,696 genes.Genome comparison among Rosaceae species showed that Shanmei and Fupenzi(Rubus chingii Hu)were most closely related,followed by blackberry(Rubus occidentalis),and that environmental adaptation-related genes were expanded in the Shanmei genome.Further resequencing of 101 samples of Shanmei collected from four regions in the provinces of Yunnan,Hunan,Jiangxi,and Sichuan in China revealed that among these samples,the Hunan population of Shanmei possessed the highest diversity and represented the more ancestral population.Moreover,the Yunnan population underwent strong selection based on the nucleotide diversity,linkage disequilibrium,and historical effective population size analyses.Furthermore,genes from candidate genomic regions that showed strong divergence were significantly enriched in the flavonoid biosynthesis and plant hormone signal transduction pathways,indicating the genetic basis of adaptation of Shanmei to the local environment.The high-quality assembled genome and the variome dataset of Shanmei provide valuable resources for breeding applications and for elucidating the genome evolution and ecological adaptation of Rubus species.Yinqing Yang Kang Zhang Ya Xiao Lingkui Zhang Yile Huang Xing Li Shumin Chen Yansong Peng Shuhua Yang Yongbo Liu Feng Cheng 2022Genomics, Proteomics & Bioinformatics2022,20,6:0
16An Algorithm of Spaceborne SAR/GMTI Based on CSI Technique显示文摘SUN Na ZHOU Yinqing LI Jingwen 2005Chinese Journal of Electronics2005,14,4:0
17LINEAR PREDICTION APPROACH IN AIRBORNE ADAPTIVE ARRAYS显示文摘LINEARPREDICTIONAPPROACHINAIRBORNEADAPTIVEARRAYSSuJie;LiChunsheng;ZhouYinqing(DepartmentofElectronicEngineering,BeijingUniver...Su Jie Li Chunsheng Zhou Yinqing(Department of Electronic Engineering, Beijing University of Aeronautics and Astronautics, Beijing, China, 100083) 1996Chinese Journal of Aeronautics1996,9,1:0
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