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12篇 您的检索式:作者名="Fangping Yan"
    题名 作者 年代 出处 被引量
1Preparation of a Novel Acid Doped Polyaniline Adsorbent for Removal of Anionic Pollutant from Wastewater显示文摘Polyaniline(PANI) was one of the most extensively studied adsorbents due to its low cost and good environmental stability. The objective of the current study was to improve the selective capabilities of PANI for anionic dyes. We found that the acid doped PANI prepared with hydrochloric acid and p-toluenesulfonic acid(PTSA) could selectively adsorb anionic dyes. It exhibited very good selectivity for OG dye, the mechanism was proposed based on the chemical interaction of PANI with the sulfonate group of the dyes. The effects of solution p H, initial dye concentration, and different HCl/PTSA mole ratios on the adsorption capacity of OG have been investigated. Kinetic simulations indicated that the adsorption process could be well represented by pseudo-second-order kinetic plots. The isothermal adsorption curve fitting also showed that the adsorption process could be well described by the Langmuir isothermal equation. The results showed that acid doped PANI could be employed as a promising adsorbent for anion removal from dye wastewater.李佳佳 王其召 BAI Yan JIA Yongming SHANG Pan 黄皓浩 WANG Fangping 2015Journal of Wuhan University of Technology(Materials Science)2015,30,5:3
2Carbonaceous matter in glacier at the headwaters of the Yangtze River:Concentration,sources and fractionation during the melting process显示文摘Carbonaceous matter has an important impact on glacial retreat in the Tibetan Plateau,further affecting the water resource supply.However,the related studies on carbonaceous matter are still scarce in Geladaindong(GLDD)region,the source of the Yangtze River.Therefore,the concentration,source and variations of carbonaceous matter at Ganglongjiama(GLJM)glacier in GLDD region were investigated during the melting period in 2017,which could deepen our understanding on carbonaceous matter contribution to glacier melting.The results showed that dissolved organic carbon(DOC)concentration of snowpit samples(283±200μg/L)was much lower than that of precipitation samples(624±361μg/L),indicating that large parts of DOC could be rapidly leached from the snowpit during the melting process.In contrast,refractory black carbon(rBC)concentration measured by Single Particle Soot Photometer of snowpit samples(4.27±3.15μg/L)was much higher than that of precipitation samples(0.97±0.49μg/L).Similarly,DOC with high mass absorption cross-section measured at 365 nm value was also likely to enrich in snowpit during the melting process.In addition,it was found that both r BC and DOC with high light-absorbing ability began to leach from the snowpit when melting process became stronger.Therefore,rBC and DOC with high light-absorbing ability exhibited similar behavior during the melting process.Based on relationship among DOC,rBC and K^+ in precipitation,the main source of carbonaceous matter in GLJM glacier was biomass burning during the study period.Zhaofu Hu Shichang Kang Xiaobo He Fangping Yan Yulan Zhang Pengfei Chen Xiaofei Li Shaopeng Gao Chaoliu Li 2020Journal of Environmental Sciences2020,32,1:3
3Allogeneic hematopoietic stem cell transplantation for patients with acute leukemia显示文摘Objective: The purposes of this study were to assess the efficacy of allogeneic hematopoietic stem cell transplantation (HSCT) for acute leukemia (AL) and analyze the factors affecting the prognosis of these patients. Methods: The clinical and follow-up data of 93 AL patients (median age, 30 years) undergoing allogeneic HSCT in Xiangya Hospital over the past 12 years were collected, and the potential factors affecting the efficacy and prognosis of allogeneic HSCT patients were determined. Results: Hematopoietic reconstitution was achieved in 90 patients. At the last follow-up, the incidences of severe acute graft versus host disease (aGvHD) and extensive chronic GvHD (cGvHD) were 14.0% and 20.0%, the 3-year cumulative incidence of transplantation related mortality (TRM) and relapse rate were 16.8%±6.1% and 21.3%±6.7%, and the estimated 3-year overall survival (OS) and disease-free survival (DFS) of the patients were 64.6%±5.4% and 56.5%±5.5%, respectively. Univariate analysis indicated that age older than 40 years, HLA mismatch, and severe lung infection within the first 100 days after transplantation were risk factors for severe aGvHD, age older than 40 years, HLA mismatch, severe lung infection within the first 100 days after transplantation, and severe aGvHD were risk factors for TRM, high-risk AL and lack of cGvHD were risk factors for relapse (all P<0.05). Survival estimation showed that HLA mismatch, severe lung infection occurring within the first 100 days post-transplantation, high-risk AL severe aGvHD and lack of cGvHD were risk factors associated with poor prognosis (all P<0.05). Further multivariate analyses revealed that severe lung infection within the first 100 days post-transplantation, severe aGvHD and lack of cGvHD were independent risk factors for unfavorable outcomes (all P<0.05). Conclusions: Allogeneic HSCT can improve the DFS of AL patients, and severe lung infection within the first 100 days post-transplantation, severe aGvHD and lack of cGvHD are independent risk factors affecting the prognosis.Yan Chen Yajing Xu Gan Fu Yi Liu Jie Peng Bin Fu Xiaoyu Yuan Hongya Xin Yan Zhu Qun He Dengshu Wu Yigang Shu Xiaolin Li Xielan Zhao Fangping Chen 2013Chinese Journal of Cancer Research2013,25,4:3
4Resistin induces insulin resistance by both AMPK-dependent and AMPK-independent mechanisms in HepG2 cells显示文摘Zhaofan Luo Ying Zhang Fangping Li Juan He Helin Ding Li Yan Hua Cheng 2009Endocrine2009,,1:2
5Density Functional Theoretical Studies on Effect of Intramolecular Hydrogen Bonds on Reduction of Nitrophenols显示文摘ZHANG Hongmei LIU Yan MA Fangping QIU Wei LEI Bo SHEN Jinyou SUN Xiuyun HAN Weiqing LI Jiansheng WANG Lianjun 2017Chemical Research in Chinese Universities2017,33,5:1
6Export of dissolved carbonaceous and nitrogenous substances in rivers of the “Water Tower of Asia”显示文摘Rivers are critical links in the carbon and nitrogen cycle in aquatic,terrestrial,and atmospheric environments.Here riverine carbon and nitrogen exports in nine large rivers on the Tibetan Plateau—the'Water Tower of Asia'—were investigated in the monsoon season from 2013 to 2015.Compared with the world average,concentrations of dissolved inorganic carbon(DIC,30.7 mg/L)were high in river basins of the plateau due to extensive topographic relief and intensive water erosion.Low concentrations of dissolved organic carbon(DOC,1.16 mg/L)were likely due to the low temperature and unproductive land vegetation environments.Average concentrations of riverine DIN(0.32 mg/L)and DON(0.35 mg/L)on the Tibetan Plateau were close to the world average.However,despite its predominantly pristine environment,discharge from agricultural activities and urban areas of the plateau has raised riverine N export.In addition,DOC/DON ratio(C/N,~6.5)in rivers of the Tibetan Plateau was much lower than the global average,indicating that dissolved organic carbon in the rivers of this region might be more bioavailable.Therefore,along with global warming and anthropogenic activities,increasing export of bioavailable riverine carbon and nitrogen from rivers of the Tibetan Plateau can be expected in the future,which will possibly influence the regional carbon and nitrogen cycle.Bin Qu Mika Sillanpaa Shichang Kang Fangping Yan Zhiguo Li Hongbo Zhang Chaoliu Li 2018Journal of Environmental Sciences2018,30,3:1
7Numerical study on the effect of reservoir heterogeneity and gas supply on hydrate accumulation in subsea shallow formations显示文摘Seepage-type gas hydrate accumulation in subsea shallow formations involves complicated thermohydro-solid coupling processes and matching problem between various accumulation elements.Theformation physical properties control local natural gas migration pathway and thus the final reservoircharacteristics of hydrates.In this paper,a novel mixed-flux model for gas hydrate accumulation isestablished and then used to simulate the process of methane gas migration into the shallow stratum toform a hydrate reservoir.The effects of reservoir heterogeneity and gas source conditions on the distribution of pore fluid and hydrate accumulation are examined.The simulation results show thatreservoir heterogeneity is conducive to the retention and lateral migration of CH4 in a hydrate stabilityzone.CH4 can contact more pore water to form a large hydrate reserve,but the formed hydrate is oftendispersed.Low-permeability layers enhance the trapping of CH4 and form a uniform and large hydratesaturation.Besides,gas source conditions have an important impact on the hydrate accumulation inreservoirs.Large gas flux,small pore water flux,continuous gas supply,high content of heavy components in natural gas,and numerous gas source points contribute to large amounts of hydrates generationin a certain time period.The presented work will deepen our understanding of the controls of natural gashydrate systems in subea shallow formations.Liang Zhang Rong Feng Songhe Geng Xin Li Fangping Yan Shaoran Ren 2021Petroleum Research2021,6,2:1
8Facet-Controlled LiMn_(2)O_(4)/C as Deionization Electrode with Enhanced Stability and High Desalination Performance显示文摘Battery materials as emerging capacitive deionization electrodes for desalination have better salt removal capacities than traditional carbon-based materials.LiMn_(2)O_(4),a widely used cathode mate-rial,is difficult to utilize as a deionization electrode due to its structural instability upon cycling and Mn dissolution in aqueous-based electrolytes.Herein,a facile and low-cost ball-milling routine was proposed to prepare a LiMn_(2)O_(4)material with highly exposed(111)facets.The prepared electrode exhibited relatively low dissolution of Mn during cycling,which shows its long cycle stability.In the hybrid capacitive deionization system,the LiMn_(2)O_(4)/C electrode delivered a high desalination capacity of 117.3 mg g^(−1) without obvious capacity decay at a voltage of 1.0 V with a 20 mM initial salt concentration.In addition,the exposed(111)facets significantly alleviated Mn ion dissolution,which also enhanced the structural steadiness.Yuxin Jiang Liyuan Chai Dehe Zhang Fangping Ouyang Xiangyuan Zhou Sikpaam IAlhassan Sailin Liu Yingjie He Lvji Yan Haiying Wang Wenchao Zhang 2022Nano-Micro Letters2022,14,11:1
9Dissolved organic carbon fractionation in wet deposition and its potential impact on radiative forcing in the central Tibetan Plateau显示文摘As an important component of carbonaceous matters,dissolved organic carbon(DOC)can absorb and scatter the solar radiation at ultraviolet and blue wavelengths.The wet deposition process has great impact on the con-centration and light absorption ability of precipitation DOC,affecting the climatic effect caused by DOC in the atmosphere.In this study,light absorption and fluorescence characteristics of precipitation DOC was investigated in the central Tibetan Plateau(TP).The results showed that the mean DOC concentration and mass absorption cross-section measured at 365 nm(MAC_(365)) in Tanggula(TGL)station were 0.59±0.42 mg/L and 0.37±0.19 m^(2)/g,respectively,while both values showed much higher volatilities than those of aerosols.DOC concentrations had significant negative correlation with the precipitation amount,while MAC_(365) values increase with the precipitation amount in TGL station.Therefore,DOC with high light-absorbing ability was preferred to be retained in the atmosphere during wet deposition.In this study,precipitation DOC contained three fluorescent components(one humic-like component and two tyrosine-like components)mainly from local biomass burning sources.DOC concentration showed a negative relationship with MAC_(365) value in TGL station.The wet deposition of DOC with low light-absorbing ability can reduce the strong negative radiative forcing caused by secondary organic aerosol due to high proportion of DOC in secondary organic carbon.Similar phenomenon was also found in Nam Co,Lulang and Everest stations of previous study,which may have a potential impact on radiative forcing in the atmosphere of TP.ZhaoFu Hu ChaoLiu Li ShiChang Kang XiaoFei Li Chao Zhang Fangping Yan XiaoBo He PengFei Chen 2023Research in Cold and Arid Regions2023,15,4:0
10Working Pressure Induced Microstructure and Stress Evolution of Sputtered ZrN Coatings显示文摘The influence of working pressure on microstructure and residual stress evolution of magnetron sputtered ZrN coatings were systemically investigated.XPS and XRD results reveal that all as-deposited coatings at varying working pressure are stoichiometric ZrN with cubic NaCl structure.A decrease in working pressure results in preferred orientation evolution from(111)to(200).This evolution is driven by kinetics processes,such as adatom surface migration and competitive grain growth,rather than by thermodynamic.This explanation is also supported by morphology characterization as the surface and cross-section morphologies transition from tapered shape and columnar structure to round and non-columnar(equiaxed)structure.Qi Zhengbing Yan Weili Hong Jinqing Zhu Fangping Sun Peng Wang Zhoucheng Wu Zhengtao Peng Dongliang Wu Chonghu 2012稀有金属材料与工程2012,41,S1:0
11Effects of resistin on insulin signaling in endothelial cells显示文摘The objective of this study was to investigate the effects of resistin on insulin signaling in human umbilical vein endothelial cells(HUVECs).HUVECs were incubated with recombinant human resistin(0–100 ng/mL)for 24 h.Akt and endothelial nitric oxide synthase(eNOS)phosphorylation levels of endothelial cells under basal or insulin stimulated conditions were measured by Western blot.Nitric oxide(NO)production of HUVECs was also detected.The results showed that resistin could significantly inhibit Akt and eNOS phos-phorylation and NO production in endothelial cells under insulin stimulated conditions(P<0.05 vs control).But under basal conditions,treatment with resistin could result in a decrease in eNOS phosphorylation(P<0.05 vs control)but had no effect on NO production and Akt phosphorylation levels.Thesefindings suggested that resistin exerted an inhibitory effect on NO production by inhibiting insulin signaling and eNOS phosphorylation in endothelial cells.Zhizhen LI Fangping LI Jianhong YE Li YAN Zuzhi FU 2009Frontiers of Medicine2009,3,2:0
12Study on the action of resistin-induced human umbilical vein endothelial cell dysfunction显示文摘The aim of this paper was to investigate the effects of resistin on human umbilical vein endothelial cells(HUVECs),and to explore its role and mechanism of action in atherosclerosis.HUVECs were incubated with recombinant human resistin(0,50,100 ng/mL)for 24 h.ICAM-1,VCAM-1 and reactive oxygen species(ROS)were assayed by flow cytometer.ET-1,eNOS and iNOS mRNA expression were measured by semi-quantitative RT-PCR.Incubation of HUVECs with resistin resulted in an increase in ICAM-1 expression and ET-1 mRNA expression.However,resistin had no effect on VCAM-1 expression and ROS release.eNOS and iNOS mRNA expression were not altered by resistin stimulation.Adipokine resistin exerted a direct effect in promoting HUVEC dysfunction by promoting ICAM-1 and ET-1 expression.These data suggest that adipocyteendothelium cross-talk might play an important role in the pathogenesis of cardiovascular disease in diabetes mellitus.LI Zhizhen LI Fangping YAN Li LI Feng LI Yan CHENG Hua FU Zuzhi 2007Frontiers of Medicine2007,1,2:0
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