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19篇 您的检索式:作者名="Du, Chunling"
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1Radiative transfer models(RTMs)for field phenotyping inversion of rice based on UAV hyperspectral remote sensing显示文摘The nondestructive and rapid acquisition of rice field phenotyping information is very important for the precision management of the rice growth process.In this research,the phenotyping information LAI(leaf area index),leaf chlorophyll content(C_(ab)),canopy water content(C_(w)),and dry matter content(C_(dm))of rice was inversed based on the hyperspectral remote sensing technology of an unmanned aerial vehicle(UAV).The improved Sobol global sensitivity analysis(GSA)method was used to analyze the input parameters of the PROSAIL model in the spectral band range of 400-1100 nm,which was obtained by hyperspectral remote sensing by the UAV.The results show that C_(ab) mainly affects the spectrum on 400-780 nm band,C_(dm) on 760-1000 nm band,C_(w) on 900-1100 nm band,and LAI on the entire band.The hyperspectral data of the 400-1100 nm band of the rice canopy were acquired by using the M600 UAV remote sensing platform,and the radiance calibration was converted to the canopy emission rate.In combination with the PROSAIL model,the particle swarm optimization algorithm was used to retrieve rice phenotyping information by constructing the cost function.The results showed the following:(1)an accuracy of R^(2)=0.833 and RMSE=0.0969,where RMSE denotes root-mean-square error,was obtained for C_(ab) retrieval;R^(2)=0.816 and RMSE=0.1012 for LAI inversion;R^(2)=0.793 and RMSE=0.1084 for C_(dm);and R^(2)=0.665 and RMSE=0.1325 for C_(w).The C_(w) inversion accuracy was not particularly high.(2)The same band will be affected by multiple parameters at the same time.(3)This study adopted the rice phenotyping information inversion method to expand the rice hyperspectral information acquisition field of a UAV based on the phenotypic information retrieval accuracy using a high level of field spectral radiometric accuracy.The inversion method featured a good mechanism,high universality,and easy implementation,which can provide a reference for nondestructive and rapid inversion of rice biochemical parameters using UAV hyperspectral remote sensing.Yu Fenghua Xu Tongyu Du Wen Ma Hang Zhang Guosheng Chen Chunling 2017International Journal of Agricultural and Biological Engineering2017,10,4:8
2A new Lactobacillus gasseri strain HMV18 inhibits the growth of pathogenic bacteria显示文摘To search for a new eco-friendly therapy for infectious disease caused by Escherichia coli,Staphylococcus aureus or Klebsiella oxytoca,we collected the vaginal swabs from healthy women,screened for Lactobacillus and found a strain repressing the growth of pathogenic bacteria.The new isolate was identified as L.gasseri by the colony morphology,Gram staining,biochemical reactions and confirmed by the 16 S rDNA sequencing.The HMV18 strain inhibited the growth of food-borne pathogens such as E.coli,S.aureus and K.oxytoca.The HMV18 strain was sensitive to penicillin,ampicillin,erythromycin,tetracycline and chloramphenicol.The HMV18 strain producedα-hemolysis.Pathological histology of the mice ileum showed that the mucosa,villi,lamina propria and crypt depth remained intact and there was no inflammation or hyperemia in the L.gasseri HMV18 gavaged group.L.gasseri HMV18 could not up-regulate inflammatory cytokines level of plasma.All the results suggested L.gasseri HMV18 is a candidate probiotic to be an additive for food preservation or drug to prevent food-borne diseases.Xiang Gao Zixuan Wang Xiang Li Xiaoling Zhang Shengqiang Du Miaomiao Jia Dailun Hu Xianxian Jia Bin Cong Yan Zhang Chunling Ma Song Zhou Jun Zhang 2022Food Science and Human Wellness2022,11,2:3
3Radial Error Propagation Issues in Self-Servo Track Writing Technology显示文摘Ye Haibei Sng Vincent Du Chunling 2002IEEE Trans on Magnetics2002,38,5:1
4H∞ control and robust stabilization of 2-D systems in Roesser models显示文摘DU Chunling XIE Lihua ZHANG Cishen 2001Automatica2001,34,:1
5H control and robust stabilization of two-dimensional systems in Roesser models 显示文摘Chunling Du Lihua Xie Cishen Zhang 2001Automatica2001,37,2:1
6Disturbance modeling and control design for self-servo track writing 显示文摘Du Chunling Zhang Jingliang Guo Guoxiao 2005IEEE/ASME Transactions on Mechatronics2005,10,1:1
7H∞ control and robust stabilization of two-dimensional systems in Roesser models显示文摘Du Chunling Xie Lihua Zhang Cishen 2001Automatica2001,37,2:1
824 cases of calcaneal frac tures with VSD treatment of subacute phase after the skin de fects of soft tissue necrosis care显示文摘Du Wei Sun Kaiyan Li Chunling 2011China medical Tribune2011,11,3:1
9Novel silk fibroin/ hydroxyapatite composite films: Structure and properties 显示文摘Du Chunling Jin Jun Li Yucheng 2009Materials Science and Engineering C2009,29,1:1
10COVID-19-associated gastrointestinal and liver injury:clinical features and potential mechanisms显示文摘Coronavirus disease-2019(COVID-19)is caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2).The infection is spreading globally and poses a huge threat to human health.Besides common respiratory symptoms,some patients with COVID-19 experience gastrointestinal symptoms,such as diarrhea,nausea,vomiting,and loss of appetite.SARS-CoV-2 might infect the gastrointestinal tract through its viral receptor angiotensin-converting enzyme 2(ACE2)and there is increasing evidence of a possible fecal–oral transmission route.In addition,there exist multiple abnormalities in liver enzymes.COVID-19-related liver injury may be due to drug-induced liver injury,systemic inflammatory reaction,and hypoxia–ischemia reperfusion injury.The direct toxic attack of SARS-CoV-2 on the liver is still questionable.This review highlights the manifestations and potential mechanisms of gastrointestinal and hepatic injuries in COVID-19 to raise awareness of digestive system injury in COVID-19.Peijie Zhong Jing Xu Dong Yang Yue Shen Lu Wang Yun Feng Chunling Du Yuanlin Song Chaomin Wu Xianglin Hu Yangbai Sun 2020Signal Transduction and Targeted Therapy2020,5,1:1
11Application of continuous quality improvement in the prevention of hemodialysis acute left heart failure显示文摘Li Shuyan Tu Leihua Du Chunling Hu Shen Hongmei 2011Chinese higher medical education2011,10,11:1
12Correlation of Ferroptosis and Other Types of Cell Death in Neurodegenerative Diseases显示文摘Ferroptosis is defined as an iron-dependent,non-apoptotic cell death pathway,with specific morphological phenotypes and biochemical changes.There is a growing realization that ferroptosis has significant implications for several neurodegenerative diseases.Even though ferroptosis is different from other forms of programmed death such as apoptosis and autophagic death,they involve a number of common protein molecules.This review focuses on current research on ferroptosis and summarizes the cross-talk among ferroptosis,apoptosis,and autophagy that are implicated in neurodegenerative diseases.We hope that this information provides new ideas for understanding the mechanisms and searching for potential therapeutic approaches and prevention of neurodegenerative diseases.Xiaoting Dang Xuejie Huan Xixun Du Xi Chen Mingxia Bi Chunling Yan Qian Jiao Hong Jiang 2022Neuroscience Bulletin2022,38,8:1
13H zo control and ro- bust stabilization of two-dimensional systems in Roesser models 显示文摘DU Chunling XIE Lihua ZHANG Cishen 2001Automatica2001,37,2:1
14降低NF-κB的活性通过下调cyclin D1的表达抑制A549细胞增殖(英文)显示文摘Objective: To investigate the effect of decreasing activity of NF-κB on proliferation of A549 cell line and the pos-sible molecular mechanism. Methods: The recombinant plasmid PCDNA3.1(+)/IκBα expressing IκBα was constructed. The recombinant plasmid was then transfected to A549 cell. The activity of NF-κB, cell proliferation, and cyclin D1 expression were observed. Results: Our results showed that transfecting PCDNA3.1(+)/IκBα inhibited activity of NF-κB in A549 cells, and decreasing activity of NF-κB inhibited proliferation of A549 cells. Decreasing activity of NF-κB was accompanied with down-regulation of cyclin D1 expression. Conclusion: Decreasing activity of NF-κB inhibited proliferation of A549 cells, and the molecular mechanism of the inhibition effect may be down-regulation of cyclin D1 expression.Jian Zhang Yongjian Xu Weining Xiong Zhenxiang Zhang Chunling Du Lifen Qiao Wang Ni Shixin Chen 2008The Chinese-German Journal of Clinical Oncology2008,7,4:0
15Proliferation changes in hippocampal neurons following pilocarpine-induced intractable epilepsy in adult rats显示文摘Epilepsy can lead to the changes in neurons residing in the dentate gyrus. The present study aimed to observe the cell dividing features following epilepsy in adult rat hippocampi,and to study difference in cell proliferation between adult rats with common epilepsy and intractable epilepsy. Adult,male,Sprague Dawley rats were randomly divided into control(n = 8,treatment with normal saline) and three experimental groups: common epilepsy(n = 33) ,intractable epilepsy(n = 11) ,and drug-responsive(n = 25) . Pilocarpine(15 mg/kg) was intraperitoneally administered to establish epilepsy in the three experimental groups. Rats that developed epilepsy were treated with chloral hydrate. Rats that did not exhibit spontaneous seizures were enrolled in the common epilepsy group,and rats with spontaneous seizure were included in the spontaneous seizure group. At 6 hours after epileptic attack termination,rats were intraperitoneally injected with bromodeoxyuridine(BrdU;50 mg/kg) ,an optimal marker for labeling cell proliferation in vivo,four times. Immunohistochemistry results at 48 hours after BrdU injection indicated that the number of BrdU-positive cells was the highest in the common epilepsy group,followed by the control group,and lastly the intractable group(P < 0.01) . In addition,the number of BrdU-positive cells in the common epilepsy group was similar to the drug-responsive group. The present findings demonstrated that intractable epilepsy led to decreased hippocampal neurons in adult rats when compared to common epilepsy.Lancai Xiong Xuejun Deng Fang Wang Chunling Du Shenggang Sun 2010Neural Regeneration Research2010,5,24:0
16Structural characterization and magnetic property of iron-platinum nanoparticles fabricated by pulse electrodeposition显示文摘This research develops a novel feasible approach to fabricate Fe-Pt bimetallic nanoparticles (NPs).The overarching goals are to provide guidelines for the design of new nanoscale magnetic materials via a cost-effective and green electrodeposition method and to integrate state-of-the-art instrumentation into nanocharacterization and magnetic properties measurement.Li, Cuixia Li, Zhihong Du, Xueyan Du, Chunling Liu, Jingbo 2012Rare Metals2012,31,1:0
17Demonstration of safety characteristics and effects on gut microbiota of Lactobacillus gasseri HMV18显示文摘Human normal flora is a source of probiotics.The safety characteristics of a specific isolate determine its application in foods or drugs.The food-borne-pathogen antagonist strain Lactobacillus gasseri HMV18 is one of the isolates from normal human flora.In this work,we assessed the in vitro pH tolerance,bile tolerance,biogenic amine production,mucin utilization,and safety of in vivo administration to mice to evaluate general health,organ-body weight index,organ histopathological change,whether L.gasseri HMV18 can colonize in the gut or modulate the gut microbiota after oral administration.The results suggest that L.gasseri HMV18 can tolerate pH 3 for 2 h,3%bile for 3 h,biogenic amine negative,mucin usage negative,does not encode verified toxins,and cause no visible change in mice's organs.L.gasseri HMV18 might not colonize in mice's gut,but can significantly affect the structure of gut microbiota.A bibliographical survey suggested that there were as few as 8 opportunistic infection cases from 1984 to 2022 and that the possibility for L.gasseri to cause infection is relatively low.Therefore,this work provides a basis for the foods or drugs application of L.gasseri HMV18 and gives a map of experiments for the safety assessment of probiotics.Xianxian Jia Miaomiao Jia Xiang Gao Xiang Li Mengyuan Wang Shengqiang Du Rui Huang Xiaotong Li Jun Zhang Shujin Li Chunling Ma Yan Zhang Bin Cong 2024Food Science and Human Wellness2024,13,2:0
18Effects of paclitaxel on cell proliferation and apoptosis and its mechanism in human lung adenocarcinoma A549 cells显示文摘Objective: To investigate the effect of paclitaxel on cell proliferation and apoptosis of human lung adenocarcinoma A549 cells line and its mechanism in vitro. Methods: Cell growth inhibition of paclitaxel on A549 cells was analyzed by MTT assay. Cell apoptosis was detected by DNA cytofluorometry, Hoechst33258 staining when treated with paclitaxel for 48 hours. Meanwhile, Cell cycle and apoptotic rate were analyzed by flow cytometry. The protein expressions of Bax and Bcl-2 were studied by Western Blot. Results: Paclitaxel inhibited the proliferation of A549 cells in a time-and dose-dependant manner. Hoechst33258 staining indicated that apoptosis was induced by paclitaxel. After treated for 48 hours, cell apoptosis rates of 25 nmol/L, 50 nmol/L and 100 nmol/L paclitaxel groups were 11.52 ± 1.94%,17.73 ± 2.53%, and 29.32 ± 5.51% respectively, which were significantly higher than those of control group 5.88 ± 1.07%(all P﹤0.01), and apoptosis rate increased in dose-dependant manner. Meanwhile, G2/M stage cell percentage of 25 nmol/L, 50 nmol/L and 100 nmol/L paclitaxel groups were 42.52 ± 6.25%, 40.46 ± 5.81%, and 35.34 ± 6.17% respectively,which were significantly higher than that of control group 22.32 ± 3.30%(all P﹤0.01); Western blot showed that paclitaxel increased the expression of Bax and decreased the expression of Bcl-2 in dose-dependant manner. Conclusion: Paclitaxel can inhibit A549 cell proliferation in a time- and dose-dependant manner. Its mechanism may be related to arresting cell cycle in G2/M stage and induce cell apoptosis by up-modulating Bax expression and down-modulating Bcl-2 expression.Baoan Gao Chunling Du Wenbo Ding Shixiong Chen Jun Yang 2006Journal of Nanjing Medical University2006,20,6:0
19Prediction of product roughness,profile,and roundness using machine learning techniques for a hard turning process显示文摘High product quality is one of key demands of customers in the field of manufacturing such as computer numerical control(CNC)machining.Quality monitoring and prediction is of great importance to assure high-quality or zero defect production.In this work,we consider roughness parameter Ra,profile deviation Pt and roundness deviation RONt of the machined products by a lathe.Intrinsically,these three parameters are much related to the machine spindle parameters of preload,temperature,and rotations per minute(RPMs),while in this paper,spindle vibration and cutting force are taken as inputs and used to predict the three quality parameters.Power spectral density(PSD)based feature extraction,the method to generate compact and well-correlated features,is proposed in details in this paper.Using the efficient features,neural network based machine learning technique turns out to be able to result in high prediction accuracy with R2 score of 0.92 for roughness,0.86 for profile,and 0.95 for roundness.Chunling Du Choon Lim Ho Jacek Kaminski 2021Advances in Manufacturing2021,9,2:0
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