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18篇 您的检索式:作者名="Fan Chunling"
    题名 作者 年代 出处 被引量
1Relationships of ozone formation sensitivity with precursors emissions,meteorology and land use types,in Guangdong-Hong Kong-Macao Greater Bay Area,China显示文摘Due to the influences of precursors emissions,meteorology,geography and other factors,ozone formation sensitivity(OFS)is generally spatially and temporally heterogeneous.This study characterized detailed spatial and temporal variations of OFS in Guangdong-Hong Kong-Macao Greater Bay Area(GBA)from 2012 to 2016 based on OMI satellite data,and analyzed the relationships of OFS with precursors emissions,meteorology and land use types(LUTs).From 2012 to 2016,the OFS tended to be NOx-limited in GBA,with the value of FNR(HCHO/NO 2)increasing from 2.04 to 2.22.According to the total annual emission statistics of precursors,NOx emissions decreased by 33.1%and VOCs emissions increased by 35.2%from 2012 to 2016,directly resulting in OFS tending to be NO x-limited.The Grey Relation Analysis results show that total column water(TCW),surface net solar radiation(SSR),air temperature at 2 m(T2)and surface pressure(SP)are the top four meteorological factors with the greatest influences on OFS.There are significant positive correlations between FNR and T2,SSR,TCW,and significant negative correlations between FNR and SP.In GBA,the OFS tends to be NO x-limited regime in wet season(higher T2,SSR,TCW and lower SP)and VOCs-limited regime in dry season(lower T2,SSR,TCW and higher SP).The FNR displays obvious gradient variations on different LUTs,with the highest in“Rural areas”,second in“Suburban areas”and lowest in“Urban areas”.Yuping Chen Hui Yan Yijuan Yao Chunling Zeng Ping Gao Liyue Zhuang Liya Fan Daiqi Ye 2020Journal of Environmental Sciences2020,32,8:5
2Grey Markov chain and its application in drift prediction model of FOGs显示文摘A novel grey Markov chain predictive model is discussed to reduce drift influence on the output of fiber optical gyroscopes (FOGs) and to improve FOGs’ measurement precision. The proposed method possesses advantages of grey model and Markov chain. It makes good use of dynamic modeling idea of the grey model to predict general trend of original data. Then according to the trend, states are divided so that it can overcome the disadvantage of high computational cost of state transition probability matrix in Markov chain. Moreover, the presented approach expands the applied scope of the grey model and makes it be fit for prediction of random data with bigger fluctuation. The numerical results of real drift data from a certain type FOG verify the effectiveness of the proposed grey Markov chain model powerfully. The Markov chain is also investigated to provide a comparison with the grey Markov chain model. It is shown that the hybrid grey Markov chain prediction model has higher modeling precision than Markov chain itself, which prove this proposed method is very applicable and effective.Fan Chunling 1,2 , Jin Zhihua1, Tian Weifeng1 & Qian Feng11. Department of Information Measurement Technology and Instrument, Shanghai Jiaotong University,Shanghai 200030, P. R. China 2. College of Automation and Electric Engineering, Qingdao University of Science and Technology,Qingdao 266042, P. R. China 2005Journal of Systems Engineering and Electronics2005,16,2:5
3An X-ray luminosity analysis for FRIs and FRIIs显示文摘Radio galaxies are divided into two groups according to their luminosities at 178 MHz, namely Fa- naroff-Riley type Is (FRIs) and Fanaroff-Riley type IIs (FRIIs) with FRIs showing lower radio luminosities than FRIIs. In this paper, the X-ray data are compiled for 183 radio galaxies (61 FRIs and 122 FRIIs), from the available literature, for the analysis of the X-ray properties. The 1 keV X-ray luminosities are calculated and discussed for the two groups, and an averaged X-ray luminosity of logLX1 keV = 41.30±2.51 erg·s-1·keV-1 is found for FRIs, which is lower than that for FRIIs, logLX1 KeV = 43.39±3.06 erg·s-1·keV-1. A Kolmogorov-Smirnov (K-S) test indicates that the probability for the X-ray luminosity distributions of the two groups to be from the same parent distribution is 1.44×10-10. We also discuss the origin and the mechanism of the X-ray emission for FRIs and FRIIs.ZHANG ChunLing FAN JunHui 2009Science China(Physics,Mechanics & Astronomy)2009,52,9:4
4A Positive Correlation between Elevated Altitude and Frequency of Mutant Alleles at the EPAS1 and HBB Loci in Chinese Indigenous Dogs显示文摘Hypoxia represents one of the most extreme environmental conditions for both human beings and animals living at high altitudes(Zhao et al.,2009).Over the past few years,great attention has been focused on the genetic bases of adaption to high-altitude environments(Bigham et al.,2010;Simonson et al.,2010).The domestic dog(Canis familiaris)is the first animal thatRuoxi Fan Fei Liu Hong Wu Shifang Wu Chunling Zhu Yan Li Guodong Wang Yaping Zhang 2015Journal of Genetics and Genomics2015,42,4:4
5Short-term environmental enrichment exposure induces proliferation and maturation of doublecortin-positive cells in the prefrontal cortex显示文摘Previous studies have demonstrated that doublecortin-positive immature neurons exist predominantly in the superficial layer of the cerebral cortex of adult mammals such as guinea pigs, and these neurons exhibit very weak properties of self-proliferation during adulthood under physiological conditions. To verify whether environmental enrichment has an impact on the proliferation and maturation of these immature neurons in the prefrontal cortex of adult guinea pigs, healthy adult guinea pigs were subjected to short-term environmental enrichment. Animals were allowed to play with various cognitive and physical stimulating objects over a period of 2 weeks, twice per day, for 60 minutes each. Immunofluorescence staining results indicated that the number of doublecortin-positive cells in layer II of the prefrontal cortex was significantly increased after short-term environmental enrichment exposure. In addition, these doublecortin-positive cells co-expressed 5-bromo-2-deoxyuridine(a marker of cell proliferation), c-Fos(a marker of cell viability) and NeuN(a marker of mature neurons). Experimental findings showed that short-term environmental enrichment can induce proliferation, activation and maturation of doublecortin-positive cells in layer II of the prefrontal cortex of adult guinea pigs.Chunling Fan Mengqi Zhang Lei Shang Ngobe Akume Cynthia Zhi Li Zhenyu Yang Dan Chen Jufang Huang Kun Xiong 2014Neural Regeneration Research2014,9,3:4
6Survey of mycotic mastitis in dairy cows from Heilong, jiang Province, China 显示文摘Yulong Zhou Yachao Ren Chunling Fan 2013Trop Anim Health Prod2013,45,8:1
7Temperature drift modelling of fibre optic gyroscopes based on a grey radial basis function neural network显示文摘Fan Chunling Jin Zhihua Tian Weifeng 0,,01:1
8The Solar Upper Transition Region Imager(SUTRI)Onboard the SATech-01 Satellite显示文摘The Solar Upper Transition Region Imager(SUTRI)onboard the Space Advanced Technology demonstration satellite(SATech-01),which was launched to a Sun-synchronous orbit at a height of~500 km in 2022 July,aims to test the on-orbit performance of our newly developed Sc/Si multi-layer reflecting mirror and the 2k×2k EUV CMOS imaging camera and to take full-disk solar images at the Ne VII 46.5 nm spectral line with a filter width of~3 nm.SUTRI employs a Ritchey-Chrétien optical system with an aperture of 18 cm.The on-orbit observations show that SUTRI images have a field of view of~416×416 and a moderate spatial resolution of~8″without an image stabilization system.The normal cadence of SUTRI images is 30 s and the solar observation time is about16 hr each day because the earth eclipse time accounts for about 1/3 of SATech-01's orbit period.Approximately15 GB data is acquired each day and made available online after processing.SUTRI images are valuable as the Ne VII 46.5 nm line is formed at a temperature regime of~0.5 MK in the solar atmosphere,which has rarely been sampled by existing solar imagers.SUTRI observations will establish connections between structures in the lower solar atmosphere and corona,and advance our understanding of various types of solar activity such as flares,filament eruptions,coronal jets and coronal mass ejections.Xianyong Bai Hui Tian Yuanyong Deng Zhanshan Wang Jianfeng Yang Xiaofeng Zhang Yonghe Zhang Runze Qi Nange Wang Yang Gao Jun Yu Chunling He Zhengxiang Shen Lun Shen Song Guo Zhenyong Hou Kaifan Ji Xingzi Bi Wei Duan Xiao Yang Jiaben Lin Ziyao Hu Qian Song Zihao Yang Yajie Chen Weidong Qiao Wei Ge Fu Li Lei Jin Jiawei He Xiaobo Chen Xiaocheng Zhu Junwang He Qi Shi Liu Liu Jinsong Li Dongxiao Xu Rui Liu Taijie Li Zhenggong Feng Yamin Wang Chengcheng Fan Shuo Liu Sifan Guo Zheng Sun Yuchuan Wu Haiyu Li Qi Yang Yuyang Ye Weichen Gu Jiali Wu Zhe Zhang Yue Yu Zeyi Ye Pengfeng Sheng Yifan Wang Wenbin Li Qiushi Huang Zhong Zhang 2023Research in Astronomy and Astrophysics2023,23,6:1
9Temperature Drift Modelling of Fibre Optic Gyroscopes Based on a Grey Radial Basis Function Neural Network显示文摘Fan Chunling Jin Zhihua Tian Weifeng 2004Measurement Science and Technology2004,,15:1
10Temperature drift modeling of fiber optic gyroscopes based on a grey radial basis function neural network显示文摘Chunling Fan Zhihua Jin Weifeng Tian and Feng Qian 2004MEASUREMENT SCIENCE AND TECHNOLOGY2004,,:1
11Temperature drift modelling of fibre optic gyroscopes based on a grey radial basis function neural network显示文摘Chunling Fan Zhihua Jin Weifeng Tian Feng Qian 2004Measurement Science and Technology2004,,15:1
12Temperature drift modelliing of fiber optic gyroscopes based on a grey radial basis function neural network显示文摘Fan Chunling Jin Zhihua Tian Weifeng 2004Measurement Science and Technology2004,15,1:1
13Behavior Recognition of the Elderly in Indoor Environment Based on Feature Fusion of Wi-Fi Perception and Videos显示文摘With the intensifying aging of the population,the phenomenon of the elderly living alone is also increasing.Therefore,using modern internet of things technology to monitor the daily behavior of the elderly in indoors is a meaningful study.Video-based action recognition tasks are easily affected by object occlusion and weak ambient light,resulting in poor recognition performance.Therefore,this paper proposes an indoor human behavior recognition method based on wireless fidelity(Wi-Fi)perception and video feature fusion by utilizing the ability of Wi-Fi signals to carry environmental information during the propagation process.This paper uses the public WiFi-based activity recognition dataset(WIAR)containing Wi-Fi channel state information and essential action videos,and then extracts video feature vectors and Wi-Fi signal feature vectors in the datasets through the two-stream convolutional neural network and standard statistical algorithms,respectively.Then the two sets of feature vectors are fused,and finally,the action classification and recognition are performed by the support vector machine(SVM).The experiments in this paper contrast experiments between the two-stream network model and the methods in this paper under three different environments.And the accuracy of action recognition after adding Wi-Fi signal feature fusion is improved by 10%on average.Yuebin Song Chunling Fan 2023Journal of Beijing Institute of Technology2023,32,2:1
14Effect of type-2 astrocytes on the viability of dorsal root ganglion neurons and length of neuronal processes显示文摘The role of type-2 astrocytes in the repair of central nervous system injury remains poorly understood. In this study, using a relatively simple culture condition in vitro, type-2 astrocytes, differentiated from oligodendrocyte precursor cells by induction with bone morphogenetic protein-4, were co-cultured with dorsal root ganglion neurons. We examined the effects of type-2 astrocytes differentiated from oligodendrocyte precursor cells on the survival and growth of dorsal root ganglion neurons. Results demonstrated that the number of dorsal root ganglion neurons was higher following co-culture of oligodendrocyte precursor cells and type-2 astrocytes than when cultured alone, but lower than that of neurons co-cultured with type-1 astrocytes. The length of the longest process and the length of all processes of a single neuron were shortest in neurons cultured alone, followed by neurons co-cultured with type-2 astrocytes, then neurons co-cultured with oligodendrocyte precursor cells, and longest in neurons co-cultured with type-1 astrocytes. These results indicate that co-culture with type-2 astrocytes can increase neuronal survival rate and process length. However, compared with type-1 astrocytes and oligodendrocyte precursor cells, the promotion effects of type-2 astrocytes on the growth of dorsal root ganglion neurons were weaker.Chunling Fan Hui Wang Dan Chen Xiaoxin Cheng Kun Xiong Xuegang Luo Qilin Cao 2014Neural Regeneration Research2014,9,2:0
15An Experimental Study on the Observation Method of Hydrogen Concentration in Fault Gas显示文摘In order to explore the new technology and methods for seismic underground fluid observation,a test study on measurement of hydrogen concentration in fault gas is carried out at the piedmont fault zone of Zhongtiao Mountain. Through the experiment on observation positions,gas collection devices and sampling depths,the paper presents the observation method for fault gas hydrogen concentration by using an online automatic trace hydrogen analyzer. Comparative tests are conducted on the stability and optimum conditions of this type of instrument in the field environment, and the hydrogen concentrations at different measuring points of the same fault are observed. The results show that it is technically feasible to carry out continuous hydrogen concentration on a fault zone. The method proposed in this study could be a useful tool for setting the observation points,choosing a reasonable observation depth and scientific analysis of the observed data.Fan Xuefang Li Zihong Li Bin Liu Guojun Huang Chunling Wang Xiangyang 2014Earthquake Research in China2014,28,3:0
16Low levels of PRSS37 protein in sperm are associated with many cases of unexplained male infertility显示文摘Jianbing Liu Chunling Shen Weimin Fan Yan Chen Aijun Zhang Yun Feng Zheng Li Ying Kuang ZhugangWang 2016Acta Biochimica et Biophysica Sinica2016,48,11:0
17鼻咽癌中血清C反应蛋白水平与临床分期的关系(英文)显示文摘Objective:The aim of our study was to explore the correlations between C-reactive protein(CRP) levels and clinical stages of nasopharyngeal carcinoma(NPC).Methods:We analyzed 108 cases,among them,68 cases were NPC,20 cases were benign inflammatory diseases of nasopharynx,20 cases were healthy volunteers as control.CRP was determined with immunoturbidimetry(ITM).Results:The mean concentrations of CRP in NPC(19.76 mg/L) were significantly increased compared to that in the control group(6.23 mg/L),while were significantly lower than that in benign inflammatory group(45.63 mg/L);The mean concentrations of CRP in T4 group(25.58 mg/L) were higher than that in T1 group(17.35 mg/L),T2 group(18.65 mg/L) and T3 group(15.61 mg/L).The mean concentrations of CRP in N3 group(28.04 mg/L) were higher than that in N0(17.62 mg/L),N1(21.27 mg/L),N2(18.62 mg/L) respectively,the mean concentrations of CRP in IV(25.74 mg/L) were higher than that in I(14.20 mg/L),Ⅱ(16.10 mg/L),Ⅲ(23.01 mg/L),respectively.Conclusion:The serum CRP level is associated with the occurrence of NPC and benign inflammatory disease of nasopharynx.In NPC,the CRP level has positive relationship with the TNM stage.Chunling Jiang Jingao Li Fan Ao Yang Qiu Yulu Liao 2010The Chinese-German Journal of Clinical Oncology2010,9,2:0
18Housing wealth inequality in urban China:the transition from welfare allocation to market differentiation显示文摘The differentiation of housing assets is an important embodiment of wealth inequality and is also an important dimension of social stratification.The housing distribution in China has experienced a transition from welfare allocation to market distribution over the decades.This process has led to a change in the housing stratification mechanism and widened housing wealth inequality,which has evoked theoretical disputes about“market transition,”“power persistence,”and“power derivation.”Based on the 2017 Chinese Social Survey(CSS),this article examines the housing wealth inequality in urban China and probes the major drivers of housing stratification.The results suggest that with the progress of housing marketization,market mechanisms have replaced the original socialist redistribution mechanisms and have become the major drivers of housing wealth inequality.However,some of the original socialist institutional arrangements continue to have strong effects on housing wealth inequality.The persisting institutional effect may provide a new perspective for exploring housing wealth inequality in contemporary urban China.Chunling Li Yiming Fan 2020The Journal of Chinese Sociology2020,7,1:0
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