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| 1 | Perfluorooctane sulfonate (PFOS) and other fluorochemicals in viscera and muscle of farmed pigs and chickens in Beijing,China显示文摘Eleven perfluorinated compounds(PFCs) were determined in tissue samples from farmed pigs and chickens(n=143) that were purchased in Beijing in March 2009.The total PFCs mean concentration was the highest in pig liver(3.438 ng g-1 wet weight(ww)),followed by pig kidney(0.508 ng g-1(ww)),pig heart(0.167 ng g-1(ww)),chicken liver(0.098 ng g-1(ww)),chicken heart(0.050 ng g-1(ww)),pork loin(0.018 ng g-1(ww)),and chicken breast(0.012 ng g-1(ww)).Among the PFCs analyzed,perfluorooctane sulfonate(PFOS) was the predominant compound in viscera and muscle of farmed pigs and chickens.In addition,a strong linear correlation(r = 0.932) was observed between the concentrations of PFOS and perfluoroundecanoic acid(PFUnDA) in pig liver.Our preliminary conclusion is that there is little potential risk of exposure to PFCs via the consumption of these products in Beijing. | WANG JieMing SHI YaLi PAN YuanYuan CAI YaQi | 2010 | Chinese Science Bulletin2010,55,31: | 24 |
| 2 | Evaluation of perfluorinated compounds in seven wastewater treatment plants in Beijing urban areas显示文摘The presence of perfluorinated compounds(PFCs)in seven major wastewater treatment plants(WWTPs)in Beijing was investigated in the current study.We detected nine PFCs in all the wastewater and sludge samples.Perfluorooctane acid(PFOA)is the dominant PFCs in influents and effluents,while perfluorooctane sulfonate(PFOS)is the major contaminant in sludge.The highest PFC concentration was found in plants at Qinghe and Jiuxianqiao WWTP,while the lowest was found at Fangzhuang WWTP.The total values of PFC range from 2.88 to 176 ng/L in influents,from 5.48 to 498 ng/L in effluents,and from 1.21 to 32.0 ng/g(dry wt)in sludge.The fact that effluents usually contain higher levels of PFCs than influents suggests that additional PFCs are produced during the wastewater treatment processes.However,PFOS decreases in effluents than in influents in 62%of the water samples.This may be due to the adsorption and removal of the sludge during the active process.Perfluoroalkyl carboxylates(PFCAs)were found significantly correlated with each other in the effluents,which may indicate their similar sources or the existence of their potential precursors in the wastewater or treatment processes.The mass flows of PFC discharges into WWTPs are 0.4–51.4 mg/day,and the mass flows of PFCs in effluents exceed those in influents by 127%.Domestic and commercial wastewaters are suggested to be the major sources of PFC pollution in WWTPs in Beijing. | PAN YuanYuan SHI YaLi WANG JieMing CAI YaQi | 2011 | Science China Chemistry2011,54,3: | 16 |
| 3 | Coronavirus disease 2019(COVID-19):a clinical update显示文摘Coronavirus disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus-2(SARS-CoV-2)has posed a significant threat to global health.It caused a total of 80868 confirmed cases and 3101 deaths in Chinese mainland until March 8,2020.This novel virus spread mainly through respiratory droplets and close contact.As disease progressed,a series of complications tend to develop,especially in critically ill patients.Pathological findings showed representative features of acute respiratory distress syndrome and involvement of multiple organs.Apart from supportive care,no specific treatment has been established for COVID-19.The efficacy of some promising antivirals,convalescent plasma transfusion,and tocilizumab needs to be investigated by ongoing clinical trials. | Min Zhou Xinxin Zhang Jieming Qu | 2020 | Frontiers of Medicine2020,14,2: | 15 |
| 4 | CMIP6和CMIP5模式对中国极端温度的模拟能力的评估显示文摘本文评估了CMIP5和CMIP6模式对中国在1979-2005年期间的极端温度的模拟性能。结果表明:CMIP6模式可以很好地再现年最大日最高气温,年最小日最低气温和霜冻日数的空间分布特征。对于年最大日最高气温,持续暖日日数和暖昼,CMIP6模式间的不确定性相对于CMIP5模式有所降低。并且,CMIP6模式也能表现出观测到的极端温度的趋势。然而,CMIP6模式再现暖昼和冷夜的能力仍然不足,特别是在青藏高原上存在明显的冷偏差或者暖偏差对于某些指数。单个CMIP6或CMIP5模式的模拟能力就不同的指数而有所不同,某些模式的模拟能力较为突出。对于一些来自同一机构不同版本的模式,改进的CMIP6模式与CMIP5模式的模拟结果没有明显差异。多模式中位数平均的模拟效果优于大多数单个模式。 | LUO Neng GUO Yan GAO Zhibo CHEN Kexin CHOU Jieming | 2020 | Atmospheric and Oceanic Science Letters2020,13,6: | 15 |
| 5 | Analyses of Extreme Climate Events over China Based on CMIP5 Historical and Future Simulations显示文摘Based on observations and 12 simulations from Coupled Model Intercomparison Project Phase 5(CMIP5) models, climatic extremes and their changes over China in the past and under the future scenarios of three Representative Concentration Pathways(RCPs) are analyzed. In observations, frost days(FD) and low-temperature threshold days(TN10P) show a decreasing trend, and summer days(SU), high-temperature threshold days(TX90P), heavy precipitation days(R20), and the contribution of heavy precipitation days(P95T) show an increasing trend. Most models are able to simulate the main characteristics of most extreme indices. In particular, the mean FD and TX90 P are reproduced the best, and the basic trends of FD, TN10 P, SU and TX90 P are represented. For the FD and SU indexes, most models show good ability in capturing the spatial differences between the mean state of the periods 1986–2005 and 1961–80; however, for other indices, the simulation abilities for spatial disparity are less satisfactory and need to be improved. Under the high emissions scenario of RCP8.5,the century-scale linear changes of the multi-model ensemble(MME) for FD, SU, TN10 P, TX90 P, R20 and P95 T are-46.9,46.0,-27.1, 175.4, and 2.9 days, and 9.9%, respectively; and the spatial change scope for each index is consistent with the emissions intensity. Due to the complexities of physical process parameterizations and the limitation of forcing data, great uncertainty still exists with respect to the simulation of climatic extremes. | YANG Shili FENG Jinming DONG Wenjie CHOU Jieming | 2014 | Advances in Atmospheric Sciences2014,31,5: | 10 |
| 6 | Perfluorinated compounds in milk, milk powder and yoghurt purchased from markets in China显示文摘The exposure to perfluorinated compounds (PFCs) through the diet for humans is of great concern. Among the diet, dairy products are in great demand. This paper reports the study on the levels of 9 perfluorinated acids and 2 fluorotelomer acids in milk, milk powder and yoghurt purchased from Chinese markets from 2008 to 2009. The analytes were quantitated by high performance liquid chromatography/electrospray tandem mass spectrometry (HPLC-ESI-MS/MS). In milk samples, perfluoroheptanoic acid (PFHpA) and perfluorononanoic acid (PFNA) were detected frequently, both in 68% of samples. In milk powder samples, perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA) and PFNA were the only detected PFCs and none of them was observed in more than 35% of samples. In yoghurt, PFOA was the most frequently detected compound, found in 69% of samples. None of fluorotelomer acids was observed in any samples. The mean concentrations of total PFCs were 178 pg/g (wet weight) in milk, 98 pg/g (dry weight) in milk powder and 42 pg/g in yoghurt (wet weight). It is notable that the data of this study indicate significant differences (P<0.001) among three kinds of packaging of milk in the concentration of total PFCs. A preliminary human health risk assessment of milk and dairy products consumption was conducted in this study. For adults, the mean daily intake of PFOS and total PFCs was equal to or lower than 23 and 167 pg kg-1 d-1 (body weight), respectively. | WANG JieMing SHI YaLi PAN YuanYuan CAI YaQi | 2010 | Chinese Science Bulletin2010,55,11: | 9 |
| 7 | A Brief Introduction to BNU-HESM1.0 and Its Earth Surface Temperature Simulations显示文摘Integrated assessment models and coupled earth system models both have their limitations in understanding the interactions between human activity and the physical earth system. In this paper,a new human–earth system model,BNUHESM1.0,constructed by combining the economic and climate damage components of the Dynamic Integrated Model of Climate Change and Economy to the BNU-ESM model,is introduced. The ability of BNU-HESM1.0 in simulating the global CO2 concentration and surface temperature is also evaluated. We find that,compared to observation,BNU-HESM1.0underestimates the global CO2 concentration and its rising trend during 1965–2005,due to the uncertainty in the economic components. However,the surface temperature simulated by BNU-HESM1.0 is much closer to observation,resulting from the overestimates of surface temperature by the original BNU-ESM model. The uncertainty of BNU-ESM falls within the range of present earth system uncertainty,so it is the economic and climate damage component of BNU-HESM1.0 that needs to be improved through further study. However,the main purpose of this paper is to introduce a new approach to investigate the complex relationship between human activity and the earth system. It is hoped that it will inspire further ideas that prove valuable in guiding human activities appropriate for a sustainable future climate. | YANG Shili DONG Wenjie CHOU Jieming FENG Jinming YAN Xiaodong WEI Zhigang YUAN Wenping GUO Yan TANG Yanli HU Jiacong | 2015 | Advances in Atmospheric Sciences2015,32,12: | 8 |
| 8 | Landscape of PD-1/PD-L1 Regulation and Targeted Immunotherapy显示文摘Programmed cell death protein 1(PD-1)/programmed death ligand 1(PD-L1)is a significant immune checkpoint,and the dysfunction of this axis contributes to tumor metastasis and immune escape.PI3K/Akt/mTOR and MAPK signal network induces PD-1/PD-L1 expression and facilitates tumor progression.Transcriptional factors such as hypoxia induced factors,PTEN,p53,CDK5,BRD4,STAT modulate PD-1/PDL1 expression.PD-1/PD-L1 level is also regulated via epigenetic and post-translational manner.The underlying mechanisms mentioned above may provide potential targets for tumor treatment.At present,the combination therapy of PD-1/PD-L1 monoclonal antibodies plus small molecular inhibitors has achieved good outcomes in tumor treatment. | Jieming Ni Anping Ni | 2018 | Chinese Medical Sciences Journal2018,33,3: | 8 |
| 9 | Global warming projections using the human–earth system model BNU-HESM1.0显示文摘Future climate change is usually projected by coupled earth system models under specific emission scenarios designed by integrated assessment models(IAMs),and this offline approach means there is no interaction between the coupled earth system models and the IAMs.This paper introduces a new method to design possible future emission scenarios and corresponding climate change, in which a simple economic and climate damage component is added to the coupled earth system model of Beijing Normal University(BNU-ESM). With the growth of population and technological expertise and the declining emission-to-output ratio described in the Dynamic Integrated Climate-Economy model, the projected carbon emission is 13.7 Gt C, resulting in a 2.4 °C warming by the end of the twenty-first century(2080–2099) compared with1980–1999. This paper also suggests the importance of the land and ocean carbon cycle in determining the CO2 concentration in the atmosphere. It is hoped that in the near future the next generation of coupled earth system models that include both the natural system and the social dimension will be developed. | Shili Yang Wenjie Dong Jieming Chou Jinming Feng Zhigang Wei Yan Guo Xiaohang Wen Ting Wei Di Tian Xian Zhu Zhiyong Yang | 2016 | Science Bulletin2016,61,23: | 7 |
| 10 | Synthesis of fluorescent carbon quantum dots from aqua mesophase pitch and their photocatalytic degradation activity of organic dyes显示文摘A synthesis strategy of fluorescent carbon quantum dots(CQDs) with high quantum yield(QY) using aqua mesophase pitch(AMP) as the carbon source has been developed via the hydrothermal method in this study. The hydrothermal temperature and soaking time have important effects on the morphology and QY of CQDs. As-prepared CQDs at 120℃ holding for 24 h(CQDs-120-24) have the uniform size of about 2.8 nm, and the QY can reach 27.6%. The obtained CQDs are successfully modified with ammonia and thionyl chloride, respectively, and they exhibit an excellent photocatalytic performance on degrading rhodamine B(Rh B), methyl blue(MB) and indigo carmine(IC). Importantly, the degradation percentage of N-CQDs on Rh B under natural light for 4 h reaches 97% with the degradation rate constant of 0.02463 min^(-1) and it can maintain 93% after repetitively used 5 times. The results indicate that these as-prepared CQDs have the potential application in degrading organic dyes. | Youliang Cheng Mengsha Bai Jian Su Changqing Fang Hang Li Jing Chen Jieming Jiao | 2019 | Journal of Materials Science & Technology2019,35,8: | 6 |
| 11 | Land Use of the Three Gorges Reservoir Area and the Effect on Its Landscape Pattern in the Recent 50 Years显示文摘The paper makes detailed analysis on the changing processes of the main types of land use in Three Gorges Reservoir Area through the techniques of RS (Remote Sense) and GIS (Geography Information System). Based on the theory of landscape ecology, many types of landscape pattern indexes are calculated and made correlation analysis. The results indicate that: in 1995 the ecological environment of Three Gorges Reservoir Area was the most vulnerable in the recent 50 years, but resumed in 2002; the landscape pattern diversity index, fractal dimension index and fragmentation index has close correlation with the area of land use/cover change (LUCC). The research also releases that the increase of the cultivated land, grassland and construction land deteriorates the landscape ecological pattern, while the increase of forest land area will help restore the landscape ecological pattern to its original state. The rapid change of grassland is an important index of the change of landscape pattern, because it has the most effect on change of landscape pattern index. | HUANG Zhiqin 1,2,3 , ZHOU Wancun 1 ,ZHOU Jieming 4 , ZHU Mingcang 3,5 1. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences , Chengdu 610041, Sichuan, China 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3. Sichuan Institute of Land Resource Management, Chengdu 610041, Sichuan , China 4. Department of Resources and Environment Science, Sichuan Normal University , Chengdu 610061, Sichuan, China 5. College of Information Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, China | 2006 | Wuhan University Journal of Natural Sciences2006,11,4: | 6 |
| 12 | High Energy and High Coercivity Sintered NdFeB Magnets by Low Oxygen Process显示文摘Using ball milling and single direction pressing, we can produce high performance NdFeB sintered magnets. The oxygen content of sintered magnets can be controlled under 1500x10^-6 and the magnetic performance can be improved by using low oxygen processing. The high preformance NdFeB sintered magnets with B_r=(1.41±0.2)T, _jH_c≥796 kA/m and (BH)max=(390±16) kJ/m^3, have been batch produced. | Kaihong DING, Guozheng LIU, Zhejun LI, Jieming YAN, Yingjie TAO and Bing WU (Baotou Research Institute of Rare Earth, Baotou 014010, China) | 2000 | Journal of Materials Science & Technology2000,16,2: | 5 |
| 13 | Distinct immune signatures discriminate between asymptomatic and presymptomatic SARS-CoV-2^(pos)subjects显示文摘Increasing numbers of SARS-CoV-2-positive(SARS-CoV-2^(pos))subjects are detected at silent SARS-CoV-2 infection stage(SSIS).Yet,SSIS represents a poorly examined time-window wherein unknown immunity patterns may contribute to the fate determination towards persistently asymptomatic or overt disease.Here,we retrieved blood samples from 19 asymptomatic and 12 presymptomatic SARS-COV-2^(pos)subjects,47 age/gender-matched patients with mild or moderate COVID-19 and 27 normal subjects,and interrogated them with combined assays of 44-plex CyTOF,RNA-seq and Olink.Notably,both asymptomatic and presymptomatic subjects exhibited numerous readily detectable immunological alterations,while certain parameters including more severely decreased frequencies of CD107a^(low)classical monocytes,intermediate monocytes,non-classical monocytes and CD62L^(hi)CD8^(+)Tnaive cells,reduced plasma STC1 level but an increased frequency of CD4^(+)NKT cells combined to distinguish the latter.Intercorrelation analyses revealed a particular presymptomatic immunotype mainly manifesting as monocytic overactivation and differentiation blockage,a likely lymphocyte exhaustion and immunosuppression,yielding mechanistic insights into SSIS fate determination,which could potentially improve 5ARS-CoV-2 management. | Shanhe Yu Caixia Di Shijun Chen Mingquan Guo Jiayang Yan Zhaoqin Zhu Li Liu Ruixue Feng Yinyin Xie Ruihong Zhang Juan Chen Mengxi Wang Dong Wei Hai Fang Tong Yin Jinyan Huang Saijuan Chen Hongzhou Lu Jiang Zhu Jieming Qu | 2021 | Cell Research2021,31,11: | 4 |
| 14 | Construction of multi-factor identification model for real-time monitoring and early warning of mine water inrush显示文摘As a new technical means that can detect abnormal signs of water inrush in advance and give an early warning,the automatic monitoring and early warning of water inrush in mines has been widely valued in recent years.Due to the many factors affecting water inrush and the complicated water inrush mechanism,many factors close to water inrush may have precursory abnormal changes.At present,the existing monitoring and early warning system mainly uses a few monitoring indicators such as groundwater level,water influx,and temperature,and performs water inrush early warning through the abnormal change of a single factor.However,there are relatively few multi-factor comprehensive early warning identification models.Based on the analysis of the abnormal changes of precursor factors in multiple water inrush cases,11 measurable and effective indicators including groundwater flow field,hydrochemical field and temperature field are proposed.Finally,taking Hengyuan coal mine as an example,6 indicators with long-term monitoring data sequences were selected to establish a single-index hierarchical early-warning recognition model,a multi-factor linear recognition model,and a comprehensive intelligent early-warning recognition model.The results show that the correct rate of early warning can reach 95.2%. | Xin Wang Zhimin Xu Yajun Sun Jieming Zheng Chenghang Zhang Zhongwen Duan | 2021 | International Journal of Mining Science and Technology2021,31,5: | 3 |
| 15 | Recent developments in seismological geodesy显示文摘With the advanced development of the modern geodetic techniques, the geodetic observations have been proved to be more powerful to uncover the geophysical phenomena,especially the seismic one, than that in the past time. The recent developments and achievements in the seismological geodesy are summarised here. Several popular geodetic techniques, such as high-rate GNSS, In SAR and Satellite Gravimetry, are introduced first to present their recent contributions in studying the seismic deformations. The developments of the joint inversion of the seismic source parameters from multiple observations are then highlighted. Some outlooks in seismological geodesy are presented in the end. | Caijun Xu Zheng Gong Jieming Niu | 2016 | Geodesy and Geodynamics2016,7,3: | 3 |
| 16 | Room-temperature NH_3 sensors with high sensitivity and short response/recovery times显示文摘Micro-sensors are fabricated by co-electrospinning In2O3and SnO2nanofibers on the substrates of SiO2/Si with interdigitated Pt signal electrodes.The total sensor area is 1.36 mm 9 0.55 mm and the active area is only0.63 mm 9 0.55 mm.Excellent NH3sensing properties are obtained based on the sensors at room temperature.The sensitivity is at most 28 when the sensors are exposed to NH3of 10 ppm.The response time is 8 s or so and the recovery time is nearly 2 s.Not only fine selectivity,but also longtime stability is obtained.The results not only demonstrate the obtained micro-sensors are very promising devices for NH3detection,but also show a possible route for large-scale NH3sensor fabrication at the industrial level. | Qingcheng Liang Di Li Shang Gao Dayong Jiang Jianxun Zhao Jieming Qin Jianhua Hou | 2014 | Chinese Science Bulletin2014,59,4: | 2 |
| 17 | Theoretical prediction for the infinite dilution activity coefficients of organic compounds in ionic liquids显示文摘On the basis of the theoretical linear solvation energy relationship(TLSER) suggested by Wilson et al.and the quantum chemical descriptors computed by AM1 Hamiltonian,a predicting model was developed to characterize the activity coefficients at infinite dilution γi∞ of 34 organic solutes in ionic liquids(ILs) 1-butyl-3-methylimidazolium trifluoromethanesulfonate(BMIMCF3SO3) and 1-propyl-2,3-di-methylimidazolium tetrafluoroborate(PDMIMBF4) at 323.15 K.The results showed that the model had an good correlation and could successfully describe γi∞.In addition,correlation parameters are analyzed to understand the interactions that affect infinite dilution activity coefficients. | GE MingLan XIONG JieMing WANG LiSheng | 2009 | Chinese Science Bulletin2009,54,13: | 2 |
| 18 | Review of flash sintering with strong electric field显示文摘Flash sintering is a novel field‐assisted sintering technology for ceramics that allows a dramatic reduction in processing time and temperature.Since 2010,when flash sintering was first reported,it has been a focus of research interest in the field of materials science.Recent study results have confirmed that the sintering temperature decreases with the strength of the applied electric field;for some ceramics,the sintering temperature can be lowered even to room temperature.This represents an innovative breakthrough for ceramic sintering at ultra‐low temperatures.However,once the electric field strength in flash sintering is increased,new questions and challenges arise,such as whether or not partial discharge occurs in the green body if under electro‐thermal coupling stress,how to quantitatively analyse the impact of discharge on sintering,and,moreover,whether the sintering mechanism under a strong electric field is consistent with that under a weak electric field.These research questions require knowledge of partial discharge detection,dielectric theory,and other topics that are beyond the scope of materials science.To address this need,this review summarises the work carried out in flash sintering with a strong electric field from the perspective of high voltage and insulation technology.First,the flash sintering process and mechanism are briefly introduced.Then,the published literature on flash sintering with a strong electric field for various ceramic materials is summarised in depth.In addition,experimental phenomena that are observed in flash sintering with a strong electric field,such as flash and blackening,are discussed.Finally,some suggestions for future work are presented.It is anticipated that the knowledge gap between different areas of study can be filled by this review. | Hongyang Zhou Xiang Li Yuchen Zhu Jieming Liu Angxuan Wu Guoming Ma Xilin Wang Zhidong Jia Liming Wang | 2022 | High Voltage2022,7,1: | 2 |
| 19 | Numerical simulation of frost heave with coupled water freezing, temperature and stress fields in tunnel excavation 显示文摘 | Yang Ping Ke Jieming Wang J G | 2006 | Computers and Geotechnics2006,33,67: | 1 |
| 20 | Facile synthe- sis, characterization and electrochemical properties of cuspate deltoid CoO crystallites 显示文摘 | Ying Yu Guangbin Ji Jieming Cao | 2009 | Journal of Alloys and Compounds2009,471,: | 1 |