|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Annual Time-series Analyses of Total Gaseous Mercury Measurement and its Impact Factors on the Gongga Mountains in the Southeastern Fringe of the Qinghai-Tibetan Plateau显示文摘Long-term monitoring programs for measurement of atmospheric mercury concentrations are presently recognized as powerful tools for local,regional and global studies of atmospheric long-range transport processes,and they could also provide valuable information about the impact of emission controls on the global budget of atmospheric mercury,their observance and an insight into the global mercury cycle. China is believed to be an increasing atmospheric mercury emission source. However,only a few measurements of mercury,to our knowledge,have been done in ambient air over China. The highly-time resolved atmospheric mercury concen-trations have been measured at Moxi Base Station (102°72′E 29°92′N,1640 m asl) of the Gongga Alpine Ecosystem Observation and Experiment Station of Chinese Academy of Sciences (CAS) from May 2005 to June 2006 by using a set of Automatic Atmospheric Mercury Speciation Analyzers (Tekran 2537A). Measurements were carried out with a time resolution of every 15 minutes. The overall average total gaseous mercury (TGM) covering the measurement periods was 4±1.38 ng·m-3 (N=57310),which is higher than the global background level of approximately 1.5~2.0 ng·m-3. The measurements in all seasons showed a similar diurnal change pattern with a high concentration during daytime relative to nighttime and maximum concentration near solar noon and minimum concentration immediately before sunrise. The presence of diurnal TGM peaks during spring and summer was found earlier than that during autumn and winter. When divided seasonally,it was found that the concentrations of TGM were highest in winter with 6.13 ± 1.78 ng·m-3 and lowest in summer with 3.17 ± 0.67 ng·m-3. There were no significant differences in TGM among wind sectors during each season. Whereas Hg generally exhibited significant correlations with the parameters,such as temperature,saturated vapor pressure,precipitation,ultraviolet radiation (UV) and atmospheric pressure at the whole measurement stage,and the correlations varied seasonally. Our results suggest that the local or regional abundant geothermal activities,such as thermal spring,anthropogenic source processes and changes in meteorological conditions,regulate and affect Hg behavior in the study area. | ZHU Wanze FU Xuewu FENG Xinbin Julia Y. Lu | 2008 | Journal of Mountain Science2008，5，1： | 4 |
| 2 | Defects in CVDZnS显示文摘Defects seriously influence the optical properties and mechanical properties of CVDZnS.The deposition technique was introduced and experiment methods such as SEM,TEM and OM were adopted to study the defects:hexagonal phase,abnormally large grains,micro-cracks,micro-pores and impurities.The microstructures of these defects were observed,and the formation mechanisms of these defects were analyzed.Hexagonal ZnS as an impurity causes anisotropy in different directions with different refraction indexes and increases the scattering of CVDZnS.Increasing the deposition temperature can inhibit the formation of the hexagonal phase.The main reason for the growth of abnormally large grains in CVDZnS is high deposition rate.The lower deposition temperature increases growth stress in CVDZnS,which consequently results in the bowing of CVDZnS plates,and introduces microscopic defects such as grain blending and micro-cracks in the crystal.Micro-pores and impurities are induced by high reactant concentration in the local deposition chamber,which can be avoided by improving the gas flowing so as to make the concentration more uniform. | FU Ligang LU Fanxiu WANG Xuewu WEI Naiguang | 2011 | Rare Metals2011，30，4： | 3 |
| 3 | Probing Hg evasion from surface waters of two Chinese hyper/meso-eutrophic reservoirs显示文摘 | Xuewu Fu Xinbin Feng Qi Wan Bo Meng Haiyu Yan Yanna Guo | 2010 | Science of the Total Environment2010，，23： | 1 |
| 4 | Downregulation of hsa_circ_0002198 inhibits keloid fibroblast activities in vitro by reducing NLRP3 inflammasome activity显示文摘The levels of hsa circular RNA_0002198(hsa_circ_0002198)have been found to be significantly upregulated in keloid dermal fibroblasts.However,the functional role of hsa_circ_0002198 in keloid fibroblasts and the underlying molecular mechanism for its effects have not been reported.In this study,the levels of hsa_circ_0002198 and nucleotide-binding and oligomerization domain,leucine rich repeat and pyrin domain containing 3(NLRP3)expression in keloid scar tissues and adjacent normal skin tissues were determined by quantitative real-time PCR and western blotting,respectively.In vitro models of keloid tissue were created by culturing primary keloid fibroblasts obtained from patients.A series of functional experiments,including CCK-8 assays,Transwell assays,and ELISA assays were performed to analyze the functional role of hsa_circ_0002198/NLRP3.Our data showed that hsa_circ_0002198 and NLRP3 were upregulated in keloid scar tissues when compared with adjacent normal tissues.Knockdown of hsa_circ_0002198 expression significantly suppressed cell proliferation,migration,and invasion,and those effects could be partially reversed by forced NLRP3 overexpression in keloid fibroblasts.At the molecular level,knockdown of hsa_circ_0002198 downregulated the levels of Col I,α-SMA,and NLRP3 proteins,as well as the levels of TGF-β,IL-1ß,and IL-33,but upregulated caspase 3 expression in keloid fibroblasts.All those effects were partially reversed after NLRP3 overexpression.In conclusion,our results suggest hsa_circ_0002198 as a potential target for treating keloid lesions. | LEI FU JINGWEN JIANG XUEWU CHEN FENGTING ZHU HUI ZHANG | 2022 | BIOCELL2022，46，5： | 1 |
| 5 | Characteristics of mercury exchange flux between soil and air in the heavily air-polluted area, eastern Guizhou, China显示文摘 | Shaofeng Wang Xinbin Feng Guangle Qiu Xuewu Fu Zhongqing Wei | 2007 | Atmospheric Environment2007，，27： | 1 |
| 6 | Mercury emissions from natural surfaces highly impacted by human activities in Guangzhou province, South China显示文摘 | Xuewu Fu Xinbin Feng Hui Zhang Ben Yu Laiguo Chen | 2012 | Atmospheric Environment2012，，： | 1 |
| 7 | Distribution and production of reactive mercury and dissolved gaseous Illercury in surface waters and water/air mercury flux in reservoirs on Wujiang River, Southwest China 显示文摘 | Fu Xuewu Feng Xinbln Guo Yanna etai | 2013 | Journal of Geophysical Research: Atmos- pheres2013，5118，9： | 1 |
| 8 | Joint observations of sporadic sodium and sporadic E layers at middle and low latitudes in China显示文摘Sporadic sodium layers(SSLs)were studied with sodium(Na)lidar at Beijing(40.5°N,116.0°E)and Haikou(19.5°N,109.1°E)in China.The altitude distribution,strength factors,and occurrence time of SSL and sporadic E(Es)layer events were statistically analyzed at both observing sites.SSL occurrence had a maximum near22:00 local time,and Eslayer occurrence had a maximum before midnight.The altitude distributions of SSL and Es layer events were better correlated at Haikou than at Beijing.All the average values of height and strength factor for SSL and Eslayer events,as well as the average of the maximum frequency that can be reflected by the Eslayer(foEs),at Beijing were higher than those at Haikou.A better correlation between SSL and Eslayer events was also found at Haikou,and the formation of SSLs was considered to likely depend on the seasonal variability of chemical and dynamical processes. | Jing Jiao Guotao Yang Xu Zou Shaohua Gong Jihong Wang Dawei Tian Wenzhen Zhang Tiemin Zhang Xianchang Yang Jun Fu Xuewu Cheng | 2014 | Chinese Science Bulletin2014，59，29： | 1 |
| 9 | Mercury emissions from natural surfaces highly impacted by human activities in Guang- zhou province 显示文摘 | Xuewu Fu Xinbin Feng Hui Zhang etal | 2012 | South China Atmospheric Environment2012，54，： | 1 |
| 10 | A review of studies on atmospheric mercury in China显示文摘 | Fu Xuewu Feng Xinbin Sommar J | 2012 | Science of the Total Environment2012，42，： | 1 |
| 11 | Speciated atmospheric mercury and its potential source in Guiy- ang, China 显示文摘 | Fu Xuewu Feng Xinbin Qiu Guangle | 2011 | Atmospheric Environment2011，45，21： | 1 |
| 12 | A review of studies on atmospheric mercury in China 显示文摘 | FU Xuewu FENG Xinbin SOM MAR J | 2012 | Sci Total Environ2012，42，： | 1 |
| 13 | The concentration and distribution of different mercury species in the water columns and sediment of Aha Lake显示文摘 | Weiyang BAI Xinbin FENG Xuewu FU Tianrong HE Guangle QIU | 2006 | Chinese Journal Of Geochemistry2006，25，B08： | 0 |
| 14 | Flexible multifunctional platform based on piezoelectric acoustics for human–machine interaction and environmental perception显示文摘Flexible human–machine interfaces show broad prospects for next-generation flexible or wearable electronics compared with their currently available bulky and rigid counterparts.However,compared to their rigid counterparts,most reported flexible devices(e.g.,flexible loudspeakers and microphones)show inferior performance,mainly due to the nature of their flexibility.Therefore,it is of great significance to improve their performance by developing and optimizing new materials,structures and design methodologies.In this paper,a flexible acoustic platform based on a zinc oxide(ZnO)thin film on an aluminum foil substrate is developed and optimized;this platform can be applied as a loudspeaker,a microphone,or an ambient sensor depending on the selection of its excitation frequencies.When used as a speaker,the proposed structure shows a high sound pressure level(SPL)of~90 dB(with a standard deviation of~3.6 dB),a low total harmonic distortion of~1.41%,and a uniform directivity(with a standard deviation of~4 dB).Its normalized SPL is higher than those of similar devices reported in the recent literature.When used as a microphone,the proposed device shows a precision of 98%for speech recognition,and the measured audio signals show a strong similarity to the original audio signals,demonstrating its equivalent performance compared to a rigid commercial microphone.As a flexible sensor,this device shows a high temperature coefficient of frequency of−289 ppm/K and good performance for respiratory monitoring. | Qian Zhang Yong Wang Dongsheng Li Jin Xie Ran Tao Jingting Luo Xuewu Dai Hamdi Torun Qiang Wu Wai Pang Ng Richard Binns YongQing Fu | 2022 | Microsystems & Nanoengineering2022，8，5： | 0 |
| 15 | An RNA-RNA crosstalk network involving HMGB1 and RICTOR facilitates hepatocellular carcinoma tumorigenesis by promoting glutamine metabolism and impedes immunotherapy by PD-L1+ exosomes activity显示文摘Hepatocellular carcinoma(HCC)is the global leading cause of cancer-related deaths due to the deficiency of targets for precision therapy.A new modality of epigenetic regulation has emerged involving RNA-RNA crosstalk networks where two or more competing endogenous RNAs(ceRNAs)bind to the same microRNAs.However,the contribution of such mechanisms in HCC has not been well studied.Herein,potential HMGB1-driven RNA-RNA crosstalk networks were evaluated at different HCC stages,identifying the mT0RC2 component RICTOR as a potential HMGB1 ceRNA in HBV^(+)early stage HCC.Indeed,elevated HMGB1 mRNA was found to promote the expressio n of RICTOR mRNA through competitively bin ding with the miR-200 family,especially miR-429.Functio nal assays emplo ying overexpressi on or in terference strategies dem on strated that the HMGB1 and RICTOR 3zuntra nslated regions(UTR)epigenetically promoted the malignant proliferation,self-renewal,and tumorigenesis in HCC cells.Intriguingly,in terference agai nst HMGB1 and RICTOR in HCC cells promoted a stron ger an ti-PD-L1 immuno therapy resp on se,which appeared to associate with the production of PD-L1^(+)exosomes.Mechanistically,the HMGB1-driven RNA-RNA crosstalk network facilitated HCC cell glutamine metabolism via dual mechanisms,activating a positive feedback loop involving mT0RC2-AKT-C-MYC to upregulate glutamine synthetase(GS)expression,and inducing mTORCI signaling to derepress SIRT4 on glutamate dehydrogenase(GDH).Meanwhile,this crosstalk network could impede the efficacy of immunotherapy through mTORCI-P70S6K dependent PD-L1 production and PD-L1^(+)exosomes activity.In conclusion,our study highlights the non-coding regulatory role of HMGB1 with implicatio ns for RNA-based therapeutic targeting together with a predictio n of an ti-PD-L1 immuno therapy in HCC. | Yanping Wei Xuewu Tang Yibin Ren Yun Yang Fengliang Song Jingbo Fu Shuowu Liu Miao Yu Jing Chen Suyang Wang Kecheng Zhang Yexiong Tan Zhipeng Han Lixjn Wei Baohua Zhang Zhangjun Cheng Liang Li Hongyang Wang | 2022 | Signal Transduction and Targeted Therapy2022，7，1： | 0 |
| 16 | Exchange rate of mercury between atmosphere and different kinds of Earth’s surfaces on the east slope of Mt. Gongga显示文摘 | Xuewu FU Xinbin FENG Shangfeng WANG Zhonggen LI Ping LI | 2006 | Chinese Journal Of Geochemistry2006，25，B08： | 0 |
| 17 | Different mercury species in the atmosphere over the municipal solid waste landfills显示文摘 | Zhonggen LI Xinbin FENG Ping LI Shunlin TANG Shaofeng WANG Xuewu FU Wei ZHENG Lihai SHANG | 2006 | Chinese Journal Of Geochemistry2006，25，B08： | 0 |
| 18 | Distribution and speciation of mercury in surface water in Wanshan Hg-mined areas, Guizhou Province, China显示文摘 | Guangle QIU Xinbin FENG Shaofeng WANG Xuewu FU Ping LI | 2006 | Chinese Journal Of Geochemistry2006，25，B08： | 0 |
| 19 | Property variation of ionic liquid [Bmim][AuCl_4] immobilized on carboxylated polystyrene submicrospheres with a small surface area显示文摘In order to understand the effect of surface chemical groups on the immobilized species, Au-containing imidazolium-based ionic liquid (IL) [Bmim][AuCl4] was intentionally immobilized on polystyrene (PS) submicrospheres (d~300 nm) with a very small surface area (4-10 m2/g), which possess carboxyl-moiety (COONa or COOH) on the surface. The behavior of immobilized [Bmim][AuCl4 ] on the two types of submicrospheres was investigated by transmission electron microscopy (TEM), differential scanning calorimetry (DSC), and powder X-ray diffraction (XRD). It was revealed that the melting points (Tm) of [Bmim][AuCl4 ] that had been immobilized on PS-COONa and PS-COOH submicrospheres were decreased by 2.7 and 4.1℃, respectively. The interaction mechanism between the IL and submicrosphere surface moieties was further analyzed by X-ray absorption fine structure (XAFS) analysis. The data indicated that the coordination environment of Au species changed markedly when [Bmim] [AuCl4] was immobilized on the surfaces of PS-COONa and PS-COOH submicrospheres, as illustrated by the decrease in white line peak intensity. The effect of surface COOH groups on Tm depression and the white line peak intensity of the XANES spectrum is more pronounced than that of COONa groups, most likely due to the possible hydrogen bond formation between the COOH group and [Bmim]+. | HE YaXing FU HaiYing LI Cheng JI Xiang GE XueWu ZOU Yang JIANG Zheng XU HongJie WU GuoZhong | 2013 | Chinese Science Bulletin2013，58，24： | 0 |
| 20 | Mercury transformation processes in nature: Critical knowledge gaps and perspectives for moving forward显示文摘The transformation of mercury(Hg) in the environment plays a vital role in the cycling of Hg and its risk to the ecosystem and human health. Of particular importance are Hg oxidation/reduction and methylation/demethylation processes driven or mediated by the dynamics of light, microorganisms, and organic carbon, among others. Advances in understanding those Hg transformation processes determine our capacity of projecting and mitigating Hg risk. Here, we provide a critical analysis of major knowledge gaps in our understanding of Hg transformation in nature, with perspectives on approaches moving forward. Our analysis focuses on Hg transformation processes in the environment, as well as emerging methodology in exploring these processes. Future avenues for improving the understanding of Hg transformation processes to protect ecosystem and human health are also explored. | Zhiyuan Gao Wang Zheng Yanbin Li Yurong Liu Mengjie Wu Shouying Li Ping Li Guangliang Liu Xuewu Fu Shuxiao Wang Feiyue Wang Yong Cai Xinbin Feng Baohua Gu Huan Zhong Yongguang Yin | 2022 | Journal of Environmental Sciences2022，34，9： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员