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38篇 您的检索式:作者名="Feifei Liang"
    题名 作者 年代 出处 被引量
1Bird watching in China reveals bird distribution changes显示文摘Using China Bird Report(2003-2007) as data source in combination with descriptions about bird habitats,we built up the China Bird Watching Database.We also developed spherical GIS software 'Global Analyst' to create the point-based database which contains accurate spatial-temporal information.The China Bird Watching Database can reflect the achievement of Chinese bird watchers and complement the basic knowledge of bird distribution.Now a total of 30936 records from 17 Orders,70 Families and 1078 Species of 5 years are included in the database,representing over 80% of all bird species in China.Till 2007,the geographic coverage has encompassed all provincial level administrative districts in China,with the exception of Hong Kong and Taiwan.The China Bird Watching Database also recorded a group of species which are additions at national and provincial levels,including 14 species which are additions to the national checklist and 109 species which appeared outside their original distributions.Comparing the new records with their original distributions,we found the trend that species move to higher latitude and higher elevation regions and some species of waterfowls in Xinjiang Uygur Autonomous Region,including a suite of rare seabirds in the China's Mainland.The majority of bird watchers come from the Eastern Region of China,but their covering range is spreading northwest.At the same time,we appeal to adopting a suite of new technologies for observation,and building up sharing platform of bird watching data to capture the distribution dynamics of birds in China and provide a direct foundation for bird conservation.LI XueYan LIANG Lu GONG Peng LIU Yang LIANG FeiFei 2013Chinese Science Bulletin2013,58,6:13
2Review of Remotely Sensed Imagery Classification Patterns Based on Object-oriented Image Analysis显示文摘With the wide use of high-resolution remotely sensed imagery, the object-oriented remotely sensed informa- tion classification pattern has been intensively studied. Starting with the definition of object-oriented remotely sensed information classification pattern and a literature review of related research progress, this paper sums up 4 developing phases of object-oriented classification pattern during the past 20 years. Then, we discuss the three aspects of method- ology in detail, namely remotely sensed imagery segmentation, feature analysis and feature selection, and classification rule generation, through comparing them with remotely sensed information classification method based on per-pixel. At last, this paper presents several points that need to be paid attention to in the future studies on object-oriented RS in- formation classification pattern: 1) developing robust and highly effective image segmentation algorithm for multi-spectral RS imagery; 2) improving the feature-set including edge, spatial-adjacent and temporal characteristics; 3) discussing the classification rule generation classifier based on the decision tree; 4) presenting evaluation methods for classification result by object-oriented classification pattern.LIU Yongxue LI Manchun MAO Liang XU Feifei HUANG Shuo 2006Chinese Geographical Science2006,16,3:9
3Allele-defined genome reveals biallelic differentiation during cassava evolution显示文摘Dear Editor,Generation of heterozygous genomes by hybridization between or within species can help maintain plant diversity and serve as a potential source of new species(Baek et al.,2018).Moreover,genomic heterozygosity is associated with genomic coadaptation,developmental stability,and heterosis.Accurate definition of alleles in haplotypes is necessary to precisely characterize allelic variation controlling agriculturally important traits(Shi et al.,2019).Currently,most released genomes have mosaic assembly of haplotypes due to random selection or collapse of alleles during genome assembly(Shi et al.,2019),which masked allelic variation and functional differentiation of divergent alleles in heterozygous species.Wei Hu Changmian Ji Haitao shi Zhe Liang Zehong Ding Jianqiu Ye Wenjun Ou Gang Zhou Weiwei Tie Yan Yan Jinghao Yang Xiaoying Yang Yunxie Wei Zhiqiang Jin Jianghui Xie Ming Peng Wenquan Wang Anping Guo Biyu Xu Jianchun Guo Songbi Chen Liming Ma Mingcheng Wang Yang Zhou Xiaolong Li Ruoxi Li Siyi Guo Xinhui Xiao Zhongqing Wan Feifei An Jie Zhang Qingyun Leng Yin Li Ray Ming Kaimian Li 2021Molecular Plant2021,14,6:8
4Three-dimensional nonlinear photonic crystal in naturally grown potassium–tantalate–niobate perovskite ferroelectrics显示文摘Since quasi-phase-matching of nonlinear optics was proposed in 1962,nonlinear photonic crystals were rapidly developed by ferroelectric domain inversion induced by electric or light poling.The three-dimensional(3D)periodical rotation of ferroelectric domains may add feasible modulation to the nonlinear coefficients and break the rigid requirements for the incident light and polarization direction in traditional quasi-phase-matching media.However,3D rotating ferroelectric domains are difficult to fabricate by the direct external poling technique.Here,we show a natural potassium-tantalate-niobate(KTN)perovskite nonlinear photonic crystal with spontaneous Rubik’s cube-like domain structures near the Curie temperature of 40℃.The KTN crystal contains 3D ferroelectric polarization distributions corresponding to the reconfigured second-order susceptibilities,which can provide rich reciprocal vectors to compensate for the phase mismatch along an arbitrary direction and polarization of incident light.Bragg diffraction and broadband second-harmonic generation are also presented.This natural nonlinear photonic crystal directly meets the 3D quasi-phase-matching condition without external poling and establishes a promising platform for all-optical nonlinear beam shaping and enables new optoelectronic applications for perovskite ferroelectrics.Chang Li Xuping Wang Yang Wu Fei Liang Feifei Wang Xiangyong Zhao Haohai Yu Huaijin Zhang 2020Light(Science & Applications)2020,9,1:3
5Late Mesozoic rifting and its deep dynamic mechanisms in the central Sulu orogenic belt: Records from Lingshan Island显示文摘The Lingshan Island scientific drill confirms that two episodes(Laiyang period and Qingshan period) of rifting developed in the central Sulu orogenic belt(SOB) in Late Mesozoic. With a set of methods including fieldwork, drilling, core logging, zircon U-Pb dating and whole rock geochemistry applied, the age, the depositional sequence and the deep dynamic mechanisms of rift evolution were unraveled. The stratigraphic sequence of the Laiyang-Qingshan Groups on Lingshan Island was composed of two different rifting sequences:(1) Laiyang Group(147–125 Ma), which consists of deep-water gravity flow deposits with interlayers of intermediate volcanic rocks;and(2) Lower Qingshan Group(125–119 Ma), which unconformably overlies the former sequence and contains subaerial volcanic deposits and terrestrial deposits. The tectonic environment changed during the evolution of these two episodes of rifting: the rift was in a NNW-SSE extensional environment in the Laiyang period and showed the typical passive rifting character that “lithospheric extension and rifting preceded volcanism”. The passive rifting period was ended by a short WNW-ESE compression at about 125 Ma. After that, the tectonic environment transferred to a strong NW-SE extensional environment and the rifting evolved into a volcanic arc basin in the Qingshan period. The igneous rocks are shoshonitic to high-K calc-alkaline trachyandesites to trachytes with a few intercalated lamprophyres and a rhyolite.The geochemical characteristics of the igneous rocks indicate that they are mantle-derived melts with a metasomatized mantle source and/or crustal contamination. In addition, an increased thinning of the lithosphere happened during the rifting episodes.The low-angle subduction of the Paleo-Pacific plate in the Jurassic weakened the thickened SOB lithospheric mantle. The rollback of the subducting plate started in late Jurassic to early Cretaceous, and the SOB lithospheric mantle was delaminated synchronously because of the gravity collapse. Thus, this caused passive rifting in the Laiyang period. Thereafter, the rollback and trench retreat of the high-angle subducting Paleo-Pacific plate would have achieved its climax, resulting in the strong regional extension. Passive rifting was ended by the crustal uplift caused by asthenospheric upwelling beneath the rift. The lower crust was heated by the upwelling asthenosphere and partially melted to form felsic melts, which were emplaced upwards and erupted explosively. The rift evolved into a volcanic arc basin in the Qingshan period and showed some characteristics of active rifting. Above all, a passive rifting in the Laiyang period and a volcanic arc basin in the Qingshan period developed successively in the Lingshan Island area(the central SOB). This records the transfer of the study area from the Paleo-Tethys tectonic domain to the circum-Pacific tectonic domain. The delamination of SOB lithospheric mantle and the upwelling of asthenospheric material were the deep dynamic mechanisms driving the development and evolution of two rift episodes. Additionally, the rift development was controlled remotely by the subduction of the Paleo-Pacific plate.Tengfei ZHOU Yaoqi ZHOU Nina SФAGER Paul Martin HOLM Zhenkai ZHANG Jun WANG Zhao LIANG Hongyu MU Yanjun CHENG Feifei LIU Miao WANG Yue ZHANG Hui ZHANG Yangjian GU Shihui DONG Hanjie ZHAO Manjie LI Yang CHEN Yanzi LIU 2022Science China Earth Sciences2022,65,9:3
6A novel lignite pre-drying system with low-grade heat integration for modern lignite power plants显示文摘The lignite pre-drying process plays an important role in modern lignite power plants and the fluidized bed dryer with internal heat utilization is a promising drying method which has both high efficiency and cost-effectiveness. After conducting an in-depth analysis of a typical lignite pre-drying power plant, this work proposed a novel lignite pre-drying system with low-grade heat integration. Through system integration, the low-temperature evaporation of the lignite was recovered to heat the combustion air, while the residual heat from the flue gases was used to heat the feed or condensed water, thereby saving a portion of heat from the steam bleeds of the high and intermediate pressure turbines. The results for a1,000 MW lignite-fired power plant showed that, the proposed pre-drying system could yield an increase in net plant efficiency of approximately 3.6 % points and a reduction in the cost of electricity of $1.83/(MW h). The thermodynamic and economic performances were each superior to those of the existing pre-drying system, convincingly demonstrating that the research of this paper may provide a promising integrated lignite pre-drying method for the next-generation of lignite-fired power plants.Cheng Xu Gang Xu Yu Han Feifei Liang Yaxiong Fang Yongping Yang 2014Chinese Science Bulletin2014,59,33:2
7Integrated histopathological,lipidomic,and metabolomic profiles reveal mink is a useful animal model to mimic the pathogenicity of severe COVID-19 patients显示文摘Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)is transmitted on mink farms between minks and humans in many countries.However,the systemic pathological features of SARS-CoV-2-infected minks are mostly unknown.Here,we demonstrated that minks were largely permissive to SARS-CoV-2,characterized by severe and diffuse alveolar damage,and lasted at least 14 days post inoculation(dpi).We first reported that infected minks displayed multiple organ-system lesions accompanied by an increased inflammatory response and widespread viral distribution in the cardiovascular,hepatobiliary,urinary,endocrine,digestive,and immune systems.The viral protein partially co-localized with activated Mac-2+macrophages throughout the body.Moreover,we first found that the alterations in lipids and metabolites were correlated with the histological lesions in infected minks,especially at 6 dpi,and were similar to that of patients with severe and fatal COVID-19.Particularly,altered metabolic pathways,abnormal digestion,and absorption of vitamins,lipids,cholesterol,steroids,amino acids,and proteins,consistent with hepatic dysfunction,highlight metabolic and immune dysregulation.Enriched kynurenine in infected minks contributed to significant activation of the kynurenine pathway and was related to macrophage activation.Melatonin,which has significant anti-inflammatory and immunomodulating effects,was significantly downregulated at 6 dpi and displayed potential as a targeted medicine.Our data first illustrate systematic analyses of infected minks to recapitulate those observations in severe and fetal COVID-19 patients,delineating a useful animal model to mimic SARS-CoV-2-induced systematic and severe pathophysiological features and provide a reliable tool for the development of effective and targeted treatment strategies,vaccine research,and potential biomarkers.Zhiqi Song Linlin Bao Wei Deng Jiangning Liu Erjun Ren Qi Lv Mingya Liu Feifei Qi Ting Chen Ran Deng Fengdi Li Yunpeng Liu Qiang Wei Hong Gao Pin Yu Yunlin Han Wenjie Zhao Junjun Zheng Xujian Liang Fuhe Yang Chuan Qin 2022Signal Transduction and Targeted Therapy2022,7,2:2
83D-assembled microneedle ion sensor-based wearable system for the transdermal monitoring of physiological ion fluctuations显示文摘Monitoring human health is of considerable significance in biomedicine.In particular,the ion concentrations in blood are important reference indicators related to many diseases.Microneedle array-based sensors have enabled promising breakthroughs in continuous health monitoring due to their minimally invasive nature.In this study,we developed a microneedle sensing-array integrated system to continuously detect subcutaneous ions to monitor human health status in real time based on a fabrication strategy for assembling planar microneedle sheets to form 3D microneedle arrays.The limitations of preparing 3D microneedle structures with multiple electrode channels were addressed by assembling planar microneedle sheets fabricated via laser micromachining;the challenges of modifying closely spaced microneedle tips into different functionalized types of electrodes were avoided.The microneedle sensing system was sufficiently sensitive for detecting real-time changes in Ca^(2+),K^(+),and Na^(+) concentrations,and it exhibited good detection performance.The in vivo results showed that the ion-sensing microneedle array successfully monitored the fluctuations in Ca^(2+),k^(+),and Na^(+) in the interstitial fluids of rats in real time.By using an integrated circuit design,we constructed the proposed microneedle sensor into a wearable integrated monitoring system.The integrated system could potentially provide information feedback for diseases related to physiological ion changes.Xinshuo Huang Shantao Zheng Baoming Liang Mengyi He Feifei Wu Jingbo Yang Hui-jiuan Chen Xi Xie 2023Microsystems & Nanoengineering2023,9,2:2
9Cognitive beamforming made practical: effective interference channel and learning-throughput tradeoff显示文摘Zhang Rui Gao Feifei Liang Yingchang 2010IEEE Transactions on Communications2010,58,2:1
10Design of learning-based MIMO cognitive radio systems显示文摘Gao Feifei Zhang Rui Liang Yingchang 2010IEEE Transactions on Vehicular Technology2010,59,4:1
11Negotiation System of Ecological Compensation of Water Source Areas显示文摘In view of no generally accepted ecological compensation standards and methods at present,this paper discusses the introduction of the negotiation system to the process of ecological compensation for water source areas.That is,the government in water source areas and the downstream regions of river basins should confirm their respective rights and obligations and then establish their compensation standards through negotiations according to the different purposes of water use.The amount of compensation should be determined in the comprehensive consideration of the quality,quantity and compensation price of water.Through open and fair negotiations,an institutional arrangement will be set up,which can make the water source areas and the downstream regions of river basins fully express their true preferences and their independent choices on the ecological environment.Ge Yanxiang Liu Shuyan Wu Feifei Liang Lijuan 2010Chinese Journal of Population,Resources and Environment2010,8,4:1
12Analysis of regional temperature variation characteristics in the Lancang River Basin in southwestern China显示文摘Xuan Wang Peiyu Liang Chunhui Li Feifei Wu 2013Quaternary International2013,,:1
13An engineered platform for reconstituting functional multisubunit SCF E3 ligase in vitro显示文摘Multisubunit SKP1/Cullin1/F-box(SCF)E3 ligases play essential roles in regulating the stability of crucial regulatory factors and controlling growth and development in eukaryotes.Detecting E3 ligase activity in vitro is important forexploring the molecular mechanism of protein ubiquitination.However,in vitro ubiquitination assay systems for multisubunit E3 ligases remain difficult to achieve,especially in plants,mainly owing to difficulties in achieving active components of multisubunit E3 ligases with high purity and characterizing specific E2 and E3 pairs.In this study,we characterized components of the rice ScFDiwARF3(SCFDs)E3 ligase,screened the coordinated E2,and reconstituted active ScFD3 E3 ligase in vitro.We further engineered SCFD3 E3 ligase using a fused SKP1-Cullin1-RBX1(eSCR)protein and found that both the wild-type SCFD3 E3 ligase and the engineered SCFD3 E3 ligase catalyzed ubiquitination of the substrate D53,which is the key transcriptional repressor in strigolactone signaling.Finally,we replaced D3 with other F-box proteins from rice and humans and reconstituted active escF E3 ligases,including escFaID2,escFBxL1s,and escFcDC4 E3 ligases.Our work reconstitutes functional SCF E3 ligases in vitro and generates an engineered system with interchangeable F-box proteins,providing a powerful platform for studying the mechanisms of multisubunit SCF E3 ligases in eukaryotes.Huihui Liu Simiao Liu Hong Yu Xiahe Huang Yingchun Wang Liang Jiang Xiangbing Meng Guifu Liu Mingjiang Chen Yanhui Jing Feifei Yui Bing Wang Jiayang Li 2022Molecular Plant2022,15,8:1
14Simultaneous Quantification of Multiple Licorice Flavonoids in Rat Plasma显示文摘Li Li Shipiao Liang Feifei Du Chuan Li 2007Journal of the American Society for Mass Spectrometry2007,,4:1
15Differential transcriptomic landscapes of multiple organs from SARS-CoV-2 early infected rhesus macaques显示文摘SARS-CoV-2 infection causes complicated clinical manifestations with variable multi-organ injuries,how-ever,the underlying mechanism,in particular immune responses in different organs,remains elusive.In this study,comprehensive transcriptomic alterations of 14 tissues from rhesus macaque infected with SARS-CoV-2 were analyzed.Compared to normal controls,SARS-CoV-2 infection resulted in dysregulation of genes involving diverse functions in various examined tissues/organs,with drastic transcriptomic changes in cerebral cortex and right ventricle.Intriguingly,cerebral cortex exhibited a hyperinflammatory state evidenced by sig-nificant upregulation of inflammation response-related genes.Meanwhile,expressions of coagulation,angio-genesis and fibrosis factors were also up-regulated in cerebral cortex.Based on our findings,neuropilin 1(NRP1),a receptor of SARS-CoV-2,was significantly elevated in cerebral cortex post infection,accompanied by active immune response releasing inflammatory factors and signal transmission among tissues,which enhanced infection of the central nervous system(CNS)in a positive feedback way,leading to viral encephalitis.Overall,our study depicts a multi-tissue/organ tran-scriptomic landscapes of rhesus macaque with early infection of SARS-CoV-2,and provides important insights into the mechanistic basis for COVID-19-asso-ciated clinical complications.Chun-Chun Gao Man Li Wei Deng Chun-Hui Ma Yu-Sheng Chen Yong-Qiao Sun Tingfu Du Qian-Lan Liu Wen-Jie Li Bing Zhang Lihong Sun Si-Meng Liu Fengli Li Feifei Qi Yajin Qu Xinyang Ge Jiangning Liu Peng Wang Yamei Niu Zhiyong Liang Yong-Liang Zhao Bo Huang Xiao-Zhong Peng Ying Yang Chuan Qin Wei-Min Tong Yun-Gui Yang 2022Protein & Cell2022,13,12:1
16Capturing and tracking of building area based on structure saliency in airborne remote sensing video显示文摘Dear editor,Object capturing and tracking in airborne remote sensing video is one of the hottest research topics,which is widely used in disaster monitoring and rescue and vehicle tracking.Because of the high realtime requirement in the above applications,the fast object capturing and stable tracking have significant and practical value.FENG Jing BI FuKun CHEN Liang ZHANG FeiFei CHEN He 2015Science China(Information Sciences)2015,58,4:1
17Dynamic Beamforming for Three-Dimensional MIMO Technique in LTE-Advanced Networks显示文摘Yan Li Xiaodong Ji Dong Liang Yuan Li Feifei Gao 2013International Journal of Antennas and Propagation2013,,:1
18Characteristics of Liver Functions in Patients With COVID-19 and Construction of a Prognostic Evaluation Decision Model Based on Liver Functions显示文摘A number of studies have suggested that coronavirus disease 2019(COVID-19)can cause liver damage.However,clinical features and outcome of COVID-19 in patients with liver injury remain to be further investigated.In this study,the clinical data of 265 COVID-19 patients admitted to seven tertiary hospitals were collected.Based on a threshold for transaminase or total bilirubin levels at two times the normal upper limit,patients were divided into mild or moderate/severe liver injury groups.Among the 265 patients,183 patients showed liver injury within 48 hours of admission.Aspartate aminotransferase levels were predominantly elevated in the liver injury group,but albumin levels were reduced.Moreover,fibrinogen and D-dimer were significantly increased.Furthermore,68%of the patients with moderate/severe liver injury had one or more underlying diseases.Almost half of these patients developed acute respiratory distress syndrome(44%)and secondary infections(46%).These patients showed increased interleukin-6 and interleukin-10 levels and a decrease in PaO2 and the oxygenation index.In addition,levels of alanine aminotransferase,aspartate aminotransferase,and albumin were correlated with the oxygenation index,D-dimer and lymphocyte counts.Furthermore,a novel prognostic assessment model based on liver function was established,which accuracy reached 88%and was able to accurately assess the prognosis of COVID-19 patients.Tongtong Pan Dazhi Chen Chenwei Pan Yi Kang Junping Liu Feifei Su Liang Hong Huili Li Hui Zhao Zhuo Lin Xiaodong Wang Hongwei Lin Qianjing Du Chao Cai Yongping Chen 2020Infectious Microbes & Diseases2020,2,4:1
19Channel estimation for OFDM modulated two-way relay net- works 显示文摘GAO Feifei ZHANG Rui LIANG Yingchang 2009IEEE Transactions on Signal Processing2009,57,10:1
20Haspin氨基端非激酶域与Pds5B的结合在有丝分裂期保护着丝粒区姐妹染色体粘连显示文摘文章简介黏连蛋白复合体(cohesin)维持姐妹染色单体配对,并促进染色体与纺锤体的正确连接。在有丝分裂的初期,染色体臂上的cohesin在其调节亚基Wapl的作用下被大量地去除,而着丝粒区的cohesin必须得以保留才能防止染色体的错误分离。Linli Zhou Cai Liang Qinfu Chen Zhenlei Zhang Bo Zhang Haiyan Yan Feifei Qi Miao Zhang Qi Yi Youchen Guan Xingfeng Xiang Xiaoqing Zhang Sheng Ye 汪方炜 2018科学新闻2018,0,4:0
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