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25篇 您的检索式:作者名="Wang Feixue"
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1A new unequal-weighted triple-frequency first order ionosphere correction algorithm and its application in COMPASS显示文摘As the introduction of triple-frequency signals in GNSS,the multi-frequency ionosphere correction technology has been fast developing.References indicate that the triple-frequency second order ionosphere correction is worse than the dual-frequency first order ionosphere correction because of the larger noise amplification factor.On the assumption that the variances of three frequency pseudoranges were equal,other references presented the triple-frequency first order ionosphere correction,which proved worse or better than the dual-frequency first order correction in different situations.In practice,the PN code rate,carrier-to-noise ratio,parameters of DLL and multipath effect of each frequency are not the same,so three frequency pseudorange variances are unequal.Under this consideration,a new unequal-weighted triple-frequency first order ionosphere correction algorithm,which minimizes the variance of the pseudorange ionosphere-free combination,is proposed in this paper.It is found that conventional dual-frequency first-order correction algorithms and the equal-weighted triple-frequency first order correction algorithm are special cases of the new algorithm.A new pseudorange variance estimation method based on the three carrier combination is also introduced.Theoretical analysis shows that the new algorithm is optimal.The experiment with COMPASS G3 satellite observations demonstrates that the ionosphere-free pseudorange combination variance of the new algorithm is smaller than traditional multi-frequency correction algorithms.WenXiang Liu WeiHua Mou FeiXue Wang 2012Science China(Physics,Mechanics & Astronomy)2012,55,3:5
2Coral community dynamics and shallow-water carbonate deposition of the reef-flat around Yongxing Island, the Xisha Islands显示文摘Microbes and microbial carbonates in reef-flat and coral community dynamics and submarine geomorphologic features in reef crest and fore reef of Yongxing Island,the Xisha Islands,South China Sea,were studied by means of scuba diving,underwater investigation,and line intercept transect survey.Studies indicate a very high coral mortality with few living corals in the reef flat of Yongxing Island.Moreover,macro algae,sea grass and cyanobacteria are common in reef flat.Microbes and microbially induced carbonates occur in reef flat.Living corals grow mainly in the reef crest and fore reef,but are also declined dramatically.From coast to off shore,the southeast reef flat of Yongxing Island can be divided into beach,inner reef flat,outer reef flat,reef flat front(reef crest and fore reef),and fore-reef slope settings.Sedimentary facies include coast,reef flat,reef crest and fore reef,and fore-reef slope.Reefal carbonate sediments are composed of coral skeletons and framework,coral fragments,bioclasts,and lime mud.With the deterioration of environment and water quality,the coral communities tend to be distributed in the reef crest and fore reef with clean sea water,well circulation and moderate water energy.Reef flat is occupied mainly by the macro algae and Heliopora coerulea communities.The coverage statistics on the reef crest demonstrate that the coverage of Acropora cytherea is more than 28% and represents a dominant species with wave-resistant ecological type.Sedimentary characteristics and geomorphologic features are different between the southeast and northwest reef-flat fronts(reef crest and fore reef) of Yongxing Island.The former shows discontinuously tidal channels in outer reef flat and different dimensional and deep reef ponds in reef crest and fore reef,and the latter presents a typical spur-and-groove system.Microbes(cyanobacteria Lyngbya sp.) occur generally in the inner reef flat and reef ponds of reef crest with restricted water circulation.Widely algae growth indicates a eutrophic environment,and the common microbes on the coral surface in the reef flat and reef ponds also demonstrate eutrophication in seawater and deteriorated water quality.SHEN JianWei YANG HongQiang WANG Yue FU FeiXue ZHAO Na 2013Science China Earth Sciences2013,56,9:4
3Continuous and comprehensive atmospheric observations in Beijing:a station to understand the complex urban atmospheric environment显示文摘Due to profound impact on climate and human health,air quality has attracted attention from all levels of the civil society.The key step in the provision of required tools for the society to tackle the complex air quality problem is to characterize it in a comprehensive manner with a long-term perspective.Here,we describe a continuous and comprehensive observation station and its accompanying state-ofthe-art instrumentation that was established to investigate the complex urban atmospheric environment in a rapidly developing Chinese Megacity.The station,located in downtown Beijing,aims to study air quality by identifying the major atmospheric pollutants and key processes determining their formation and loss mechanisms.A few hundreds of parameters are continuously measured with the state-of-the-art instruments,including trace gas concentrations,aerosol particle size distributions,and mass concentrations,covering aerosol particle chemical composition from molecules to micrometer-sized aerosol particles.This produced long-term,comprehensive big data with around 1�10^(11)bytes per year.In this paper,we provide an overview on the facilities of the station,the instrumentation used,the workflow of continuous observations and examples of results from 2018 to 2019 and a basis for establishing a modern long-term,comprehensive atmospheric urban observation station in other megacities.Yongchun Liu Chao Yan Zemin Feng Feixue Zheng Xiaolong Fan Yusheng Zhang Chang Li Ying Zhou Zhuohui Lin Yishou Guo Ying Zhang Li Ma Wenshuo Zhou Zhikun Liu Lubna Dada Kaspar Dallenbach Jenni Kontkanen Runlong Cai Tommy Chan Biwu Chu Wei Du Lei Yao Yonghong Wang Jing Cai Juha Kangasluoma Tom Kokkonen Joni Kujansuu Anton Rusanen Chenjuan Deng Yueyun Fu Rujing Yin Xiaoxiao Li Yiqun Lu Yiliang Liu Chaofan Lian Dongsen Yang Weigang Wang Maofa Ge Yuesi Wang Douglas R.Worsnop Heikki Junninen Hong He Veli-Matti Kerminen Jun Zheng Lin Wang Jingkun Jiang Tuukka Petaja Federico Bianchi Markku Kulmala 2020Big Earth Data2020,4,3:3
4Expression of S100A10 gene and its regulation by sex hormones in mouse uterus显示文摘S100A10 belongs to the S100 calcium binding protein superfamily, and functions as one of the mediators of calcium-dependent signaling pathway. Recently, S100A10 gene was proved to be significantly up-regulated at the implantation site. In the present study, semi-quantitative reverse transcriptase-polymerase chain reaction and in situ hybridization are used to investigate the tissue-specificity of S100A10 expression and the expression pattern of S100A10 in the uteri during the estrous cycle and pregnancy. Meanwhile, the regulation of S100A10 expression by sex steroid hormones is studied in ovariectomized mice. The results show that S100A10 could be detected in various kinds of tissues, with relatively high expression in reproductive tracts including ovary, uterus, testis and epididymis.During pregnancy, the expression of S100A10 in the uteri is significantly up-regulated on the 4th day. The transcript is strongly detected in endometrial stromal cells and weakly in luminal epithelium cells at the implantation site, but almost not at the inter-implantation site.From gestational day 5 till labor, S100A10 mRNA maintains a certain level in both uteri and placentae. During the estrous cycle, expression of S100A10 is up-regulated in the uteri at proestrus and estrus. Estradiol significantly induces the expression of S100A10, while progesterone can abolish the effect of estradiol. The data suggests that S100A10 may be involved in preventing luminal epithelial cells from over-apoptosis, inducing proliferation and decidualization of stromal cells during implantation, and responding to reproductive stress triggered by copulation.CHEN Zhiqiang LIU Jing LI Feixue SUN Xiaoyang ZHANG Huaiyun WANG Yanling 2005Progress in Natural Science:Materials International2005,15,10:2
5Black band disease as a possible factor of the coral decline at the northern reef-flat of Yongxing Island,South China Sea显示文摘Black band disease(BBD),characterized by the Cyanobacterial dominated pathogenic consortium,is thought to play a key role in the global decline of the coral reef ecosystems.The present paper originally documents a case of BBD from Yongxing Island(Xisha Islands,South China Sea),and further probes the reasons of this abnormal phenomenon.Prior to 2007,corals at northern reef-flat of Yongxing Isand were in healthy growth.Catastrophic coral mortality occurred between 2007 and 2008.The 16S rRNA gene sequencing and PCR amplification,with universally conserved primers,were applied to detect the contagious bacterial community of the microbial mat.The results demonstrated that six bacterial divisions constituted the clone libraries derived from the BBD mat,and that Cyanobacteria are the most diversely represented group that inhabit BBD bacterial mats,despite the fact that species in five others divisions(α-Proteobacteria,γ-Proteobacteria,Bacteroidetes,Verrucomicrobia and Actinobacteria) are also consistently diverse within the BBD mats of diseased coral.Other factors such as coral bleaching,typhoons,ocean acidification and crown-of-thorns starfish outbreaks,are not primarily responsible for the coral mortality within such a short time interval.The disaster expansion of BBD associated with Cyanobacterial blooms is a more likely mechanism impacting these coral reefs.Excessive human activity enhances the eutrophication of the marine water of the reefal region and may result in occurrence of the BBD.YANG HongQiang SHEN JianWei FU FeiXue WANG Yue ZHAO Na 2014Science China Earth Sciences2014,57,4:2
6DDR1 promotes LoVo cell proliferation by regulating energy metabolism显示文摘Cellular energy metabolism dysregulation is associated with colorectal cancer(CRC)development and progression.Discoidin domain receptor 1a(DDR1a),one of the five DDR1 isoforms,is closely related to cell proliferation,invasion,and apoptosis in various tumors.Whether it participates in cellular metabolic reprogramming and regulates CRC initiation and progression remains unclear.In this study,we compared the expression of DDR1 in CRC tissues and adjacent tissues from 126 postoperative CRC samples.Moreover,lentivirus-mediated DDR1a overexpression and knockdown were performed in LoVo cells,and cell viability and proliferation were determined by CCK-8 and BrdU assays,respectively.Oxygen consumption rate,extracellular acidification rate,and lactate production were used to determine the effect of DDR1a on metabolic reprogramming.Clinically,CRC patients with high DDR1 expression had poor differentiation and were at an advanced TNM stage.DDR1a promoted LoVo cell proliferation,mitochondrial function,and extracellular acidification.Moreover,DDR1a knockdown inhibited intracellular lactic acid production in LoVo cells,while a pyruvate kinase inhibitor(diamide,200μM)significantly reversed this progression.Taken together,our results reveal that DDR1 plays a crucial role in maintaining intracellular environment homeostasis through metabolic reprogramming.Bin Xiong Zehui Xie Feixue Song Huiling Chen Xiaojuan Wang Zhengxu Jin Tiyun Han Yi Li Dekui Zhang 2022Acta Biochimica et Biophysica Sinica2022,54,5:1
7Reduction and axiomization of covering generalized rough sets显示文摘Zhu W Wang Feixue 2003Information Science2003,152,1:1
8Multiplexing performance assessment of POCET method for Compass B1/B3 signals 显示文摘ZHANG Kai ZHOU Hongwei WANG Feixue 2011The Journal of Navigation2011,64,10:1
9Ameliorative effect of scutellarin on acute alcohol brain injury in mice显示文摘Drinking culture has high significance in both China and the world,whether in the entertainment sector or in social occasions;according to the World Health Organization's 2018 Global Alcohol and Health Report,about 3 million people died from excessive drinking in 2016,accounting for 5.3%of the total global deaths that year.Oxidative stress and inflammation are the most common pathological phenomena caused by alcohol abuse(Snyder et al.,2017).Tianmeng ZHANG Kun WANG Hui FAN Qiankun YANG Xiao ZHANG Feixue LIU Xin FENG Yi CHEN Daoyang TENG Panpan ZHAO Jingquan DONG 2022Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2022,23,3:1
10Group-based trust and gender differences in China显示文摘Feixue Wang Toshio Yamagishi 2005Asian Journal of Social Psychology2005,8,:1
11Effect of MPBM on Crosslinking Reaction of Tetrafluoroethylene-Propylene Copolymer/DCP显示文摘Li Yingliang Han Feixue Wang Yufeng 0,,:1
12Group - based trust and gender differences in China 显示文摘Feixue Wang Yamagishi Toshio 2005Asian Journal of Social Psychology2005,8,2:1
13Group -based trust and gender differences in China 显示文摘Feixue Wang Toshio Yamagishi 2005Asian Journal of Social Psychology2005,8,:1
14Mixer-flee digital quadrature demodulmion based on second-order sampling显示文摘Wang Feixue Yong Shaowei Guo Guirong 1998Electronics Letters1998,34,9:1
15MEAN-VARIANCE MODEL BASED ON FILTERS OF MINIMUM SPANNING TREE显示文摘This study aims to reduce the statistical uncertainty of the correlation coefficient matrix in the mean-variance model of Markowitz. A filtering algorithm based on minimum spanning tree (MST) is proposed. Daily data of the 30 stocks of the Hang Seng Index (HSI) and Dow Jones Index (DJI) from 2004 to 2009 are selected as the base dataset. The proposed algorithm is compared with the Markowitz method in terms of risk, reliability, and effective size of the portfolio. Results show that (1) although the predicted risk of portfolio built with the MST is slightly higher than that of Markowitz, the realized risk of MST filtering algorithm is much smaller; and (2) the reliability and the effective size of filtering algorithm based on MST is apparently better than that of the Markowitz portfolio. Therefore, conclusion is that filtering algorithm based on MST improves the mean-variance model of Markowitz.Feixue HUANG Lei SUN Yun WANG 2011Journal of Systems Science and Systems Engineering2011,20,4:1
16Erratum to Treatment strategies for patients with HER2-positive gastric cancer显示文摘For the affiliation information,the affiliation for author Feixue Wang should be Department of GI Medical Oncology,Tianjin Medical University Cancer Institute and Hospital,National Clinical Research Center for Cancer,Tianjin's Clinical Research Center for Cancer,Tianjin Key Laboratory of Digestive Cancer,Key Laboratory of Cancer Prevention and Therapy,Tianjin Medical University,Tianjin 300060,China.Feixue Wang Yi Ba 2024Cancer Biology & Medicine2024,21,3:0
17A Layout Method of Space-Based Pseudolite System Based on GDOP Geometry显示文摘The pseudolite system can be used to provide positioning and timing service for users in a specific area.In order to provide better positioning and timing service,a good geometric configuration needs to be formed for the pseudolite system.For the problem of pseudolite system deployment,the average and mean square values of geometric dilution of precision(GDOP)are optimized in this paper for users in a target area.We proposed a space-based pseudolite deployment method based on GDOP geometry,starting from the minimum GDOP value for users in the central area.From the simulation results,it can be seen that,compared with the empirical method and the NSGA-II method,the method in this paper has the smallest average GDOP,a better robustness,and a higher positioning accuracy in the target area,through which a pseudolite deployment proposal can be quickly obtained.YANG Xin WANG Feixue LIU Wenxiang XIAO Wei YE Xiaozhou 2023Chinese Journal of Electronics2023,32,5:0
18Insights into Photothermally Enhanced Photocatalytic U(VI)Extraction by a Step-Scheme Heterojunction显示文摘In this work,a CdS/BivO4 step-scheme(S-scheme)heterojunction with self-photothermally enhanced photocatalytic effect was synthesized and applied for efficient U(VI)photoextraction.Characterizations such as transient absorption spectroscopy and Tafel test together confirmed the formation of S-scheme heterojunctions,which allows CdS/BivO_(4) to avoid photocorrosion while retaining the strong reducing capacity of CdS and the oxidizing capacity of BivO_(4).Experimental results such as radical quenching experiments and electron spin resonance show that U(VI)is rapidly oxidized by photoholes/·OH to insoluble UO(OH)2 after being reduced to U(IV)by photoelectrons/·O2,which precisely avoids the depletion of electron sacrificial agents.The rapid recombination of electron-hole pairs triggered by the S-scheme heterojunction is found to release large amounts of heat and accelerate the photocatalysis.This work offers a new enhanced strategy for photocatalytic uranium extraction and presents a direction for the design and development of new photocatalysts.Yifeng Zhang Haorong Sun Feixue Gao Shuo Zhang Qingzhi Han Jing Li Ming Fang Yawen Cai Baowei Hu Xiaoli Tan Xiangke Wang 2023Research2023,,1:0
19Historical and current climates affect the spatial distribution of herbivorous tree insects in China显示文摘Historical and current climate impacts reshape the evolutionary trajectory and ecological dynamics of entire vegetative communities,which can drive insect species distribution.Understanding the spatial distribution of insects can enhance forest management effectiveness.The effects of historical and current climates in the spatial distribution of herbivorous tree insects in China were explored.A species distribution model simulated insect spatial distribution based on 596 species and the distribution probability and richness of these species were assessed in forest ecoregions.The explanatory power of the historical climate was stronger than that of the current climate,particularly historical annual precipitation and annual mean temperatures,for the distribution of herbivorous insects.Under both historical and current climatic conditions,herbivorous tree insects were and are mainly distributed in the North China Plain and the middle and lower reaches of the Yangtze River Plain,namely in the Huang He Plain mixed forests,Changjiang Plain evergreen forests,and Sichuan Basin evergreen broadleaf forests.The Yunnan-Guizhou Plateau and northeast China are regions with large impact differences between historical and current climates.The findings of this study provide valuable insights into herbivorous insect responses to sustained climate change and may contribute to long-term biodiversity conservation activities.Feixue Zhang Chunjing Wang Jizhong Wan 2023Journal of Forestry Research2023,34,5:0
20Pseudomonas aeruginosa-induced mitochondrial dysfunction inhibits proinflammatory cytokine secretion and enhances cytotoxicity in mouse macrophages in a reactive oxygen species(ROS)-dependent way显示文摘Pseudomonas aeruginosa belongs to the genus Pseudomonas and is a common Gram-negative,exclusively aerobic,conditionally pathogenic bacterium with the characteristics of easy colonization,mutation,and multidrug resistance(Deng et al.,2015;Azam and Khan,2019;Jurado-Martin et al.,2021).Haitao YANG Yan WANG Hui FAN Feixue LIU Huimiao FENG Xueqing LI Mingyi CHU Enzhuang PAN Daoyang TENG Huizhen CHEN Jingquan DONG 2023Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2023,24,11:0
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