|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Glacier area variation and climate change in the Chinese Tianshan Mountains since 1960显示文摘基于自从 1960,在中国 Tianshan 山测量的冰河区域变化的统计,到气候变化的冰河区域变化的反应系统地被讨论。作为结果,冰河的全部的区域被 11.5% 在过去的 50 年里减少了,它根据中国(GIC ) 的冰河库存分开的 10 排水盆的冰河区域变化是一个加权的百分比。在中国 Tianshan 山的冰河的区域变化(APAC ) 的年度百分比在学习时期的标准化以后是 0.31% 。APAC 为不同排水盆广泛地变化,但是冰河通常处于快速的撤退的一个国家。根据在中国 Tianshan 山的 14 个气象学的车站,温度和降水以 0.34 整湲椠 ? 潮 ?湵晩牯 m 的率从 1960 ~ 2009 | WANG Shengjie ZHANG Mingjun LI Zhongqin WANG Feiteng LI Huilin LI Yaju HUANG Xiaoyan | 2011 | Journal of Geographical Sciences2011，21，2： | 31 |
| 2 | Glacier area shrinkage in China and its climatic background during the past half century显示文摘在遥感监视的中国的典型区域基于冰河区域变化记录,吗象从 139 的空气温度和 降水的气象学的数据一样驻扎并且 0 ??????????????????????????吠慭吗?? | ZHANG Mingjun WANG Shengjie LI Zhongqin WANG Feiteng | 2012 | Journal of Geographical Sciences2012，22，1： | 14 |
| 3 | Bedaquiline-containing regimens in patients with pulmonary multidrug-resistant tuberculosis in China:focus on the safety显示文摘Background:World Health Organization recommends countries introducing new drug and short treatment regimen for drug resistant tuberculosis(DR-TB)should develop and implement a system for active pharmacovigilance that allows for detection,reporting and management of adverse events.The aim of the study is to evaluate the frequency and severity of adverse events(AEs)of bedaquiline-containing regimen in a cohort of Chinese patients with multidrug-resistant(MDR)/extensively drug-resistant(XDR)-TB based on active drug safety monitoring(aDSM)system of New Drug Introduction and Protection Program(NDIP). | Jing-Tao Gao Juan Du Gui-Hui Wu Yi Pei Meng-Qiu Gao Leonardo Martinez Lin Fan Wei Chen Li Xie Yu Chen Hua Wang Long Jin Guo-Bao Li Pei-Lan Zong Yu Xiong Qian-Hong Wu Ming-Wu Li Xiao-Feng Yan Yan-Fang Miao Qing-Shan Cai Xin-Jie Li Da-Peng Bai Shu-Jun Geng Guo-Li Yang Pei-JunTang Yi Zeng Xiao-Hong Chen Tong-Xia Li Cui Cai Yun Zhou Ma Zhuo Jian-Yun Wang Wen-Long Guan Lin Xu Ji-Chan Shi Wei Shu Li-Li Cheng FeiTeng Yu-Jia Ning Shi-Heng Xie Yu-Xian Sun Li-Jie Zhang Yu-Hong Liu | 2021 | Infectious Diseases of Poverty2021，10，2： | 11 |
| 4 | Hydrochemical Characteristics and Solute Dynamics of Meltwater Runoff of Urumqi Glacier No.1,Eastern Tianshan,Northwest China显示文摘Hydrochemical characteristics and solute dynamics of bulk meltwater draining from Urumqi Glacier No.1 were investigated in years 2006 and 2007.The glacial meltwater was slightly alkaline with the mean pH of 7.64 and 7.61 in 2006 and 2007,respectively.In the meltwater,the dominant anions were the bicarbonate and sulphate,and the dominant cation was calcium.The concentration of major cations were varied as c(Ca2+) > c(Mg2+) > c(K+) > c(Na+),while the order for the cations was c(HCO3) > c(SO42) > c(NO3) > c(Cl).The total dissolved solids(TDS) in meltwater had inverse relationships with the diurnal discharge.The major ion composition of meltwater was mainly controlled by rock weathering as inferred from the Gibbs model.Furthermore,the ion ratios and Piper diagram indicated that the main processes controlling the meltwater chemistry were carbonate weathering,pyrite weathering and feldspar weathering in rocks,and Ca2+ and HCO3 were the dominant ions during the carbonate weathering process.Solute flux calculation at Glacier No.1 station suggested that chemical denudation rates were 11.46 and 13.90 ton.km 2.yr 1 in 2006 and 2007,respectively. | FENG Fang LI Zhongqin JIN Shuang DONG Zhiwen WANG Feiteng | 2012 | Journal of Mountain Science2012，9，4： | 10 |
| 5 | Ice Surface-Elevation Change and Velocity of Qingbingtan Glacier No.72 in the Tomor Region,Tianshan Mountains,Central Asia显示文摘Glaciers in the Tomor region of Tianshan Mountains preserve vital water resources.However,these glaciers suffer from strong mass losses in the recent years because of global warming.From 2008 to 2009,a large-scale scientific expedition has been carried out in this region.As an individual reference glacier,the tongue area of Qingbingtan glacier No.72 was measured by the high precise Real Time Kinematic-Global Position System (RTK-GPS).In this paper,changes of the tongue area of Qingbingtan glacier No.72 has been studied based on topographic map,remote sensing image and the survey during 2008-2009 field campaign.Results indicated that the ice surface-elevation of the tongue area changed-0.22±0.14 m a-1 from 1964 to 2008.The estimated loss in ice volume was 0.014±0.009 km3,which represented a ~20 % decrease from the 1964 volume and was equivalent to average annual mass balance of-0.20±0.12 m water equivalent for the tongue area during 1964-2008.Terminus retreated by 1852 m,approximately 41 m a-1,with the area reduction of 1.533 km2 (0.034 km2 a-1) from 1964 to 2009.Furthermore,the annual velocity reached to ~70 m a-1.Comparing with the other monitored glaciers in the eastern Tianshan Mountains,Qingbingtan glacier No.72 experienced more intensive in shrinkage,which resulted from the combined effects of climate change and glacier dynamic,providing evidence of the response to climatic warming. | WANG Puyu LI Zhongqin LI Huilin WANG Wenbin WANG Feiteng | 2011 | Journal of Mountain Science2011，8，6： | 8 |
| 6 | Experimental and Numerical Studies of Vitiated Air Effects on Hydrogen-fueled Supersonic Combustor Performance显示文摘This paper deals with the vitiation effects of test air on the scramjet performance in the ground combustion heated facilities. The primary goal is to evaluate the effects of H2O and CO2, the two major vitiated species generated by combustion heater, on hydrogen-fueled supersonic combustor performance with experimental and numerical approaches. The comparative experiments in the clean air and vitiated air are conducted by using the resistance heated direct-connected facility, with the typical Mach 4 flight conditions simulated. The H2O and CO2 species with accurately controlled contents are added to the high enthalpy clean air from resistance heater, to synthesize the vitiated air of a combustion-type heater. Typically, the contents of H2O species can be varied within the range of 3.5%-30% by mole, and 3.0%-10% for CO2 species. The total temperature, total pressure, Mach number and O2 mole fraction at the combustor entrance are well-matched between the clean air and vitiated air. The combustion experiments are completed at the fuel equivalence ratios of 0.53 and 0.42 respectively. Furthermore, three-dimensional (3D) reacting flow simulations of combustor flowpath are performed to provide insight into flow field structures and combustion chemistry details that cannot resolved by experimental instruments available. Finally, the experimental data, combined with computational results, are employed to analyze the effects of H2O and CO2 vitiated air on supersonic combustion characteristics and performance. It is concluded that H2O and CO2 contaminants can significantly inhibit the combustion induced pressure rise measured from combustor wall, and the pressure profile decreases with the increasing H2O and CO2 contents in nonlinear trend; simulation results agree well with experimental data and the overall vitiation effects are captured; direct extrapolation of the results from vitiated air to predict the performance of actual flight conditions could result in over-fueling the combustor, possible inlet un-start and inappropriate combustion mode transition. The detailed analysis and discussion are presented and the research conclusions are summarized. | LUO Feiteng SONG Wenyan ZHANG Zhiqiang LI Weiqiang LI Jianping | 2012 | Chinese Journal of Aeronautics2012，25，2： | 5 |
| 7 | Network traffic classification based on ensemble learning and co-training显示文摘Classification of network traffic is the essential step for many network researches. However,with the rapid evolution of Internet applications the effectiveness of the port-based or payload-based identifi-cation approaches has been greatly diminished in recent years. And many researchers begin to turn their attentions to an alternative machine learning based method. This paper presents a novel machine learning-based classification model,which combines ensemble learning paradigm with co-training tech-niques. Compared to previous approaches,most of which only employed single classifier,multiple clas-sifiers and semi-supervised learning are applied in our method and it mainly helps to overcome three shortcomings:limited flow accuracy rate,weak adaptability and huge demand of labeled training set. In this paper,statistical characteristics of IP flows are extracted from the packet level traces to establish the feature set,then the classification model is created and tested and the empirical results prove its feasibility and effectiveness. | HE HaiTao LUO XiaoNan MA FeiTeng CHE ChunHui WANG JianMin | 2009 | Science in China(Series F)2009，52，2： | 5 |
| 8 | Fixed-length roof cutting with vertical hydraulic fracture based on the stress shadow effect:A case study显示文摘Pre-driven longwall retracement roadway(PLRR)is commonly used in large mine shaft.The support crushing disasters occur frequently during the retracement,and roof management is necessary.Taking the 31107 panel as research background,the roof breaking structure of PLRR is analyzed.It is concluded that the roof cutting with vertical hydraulic fracture(HF)at a specified position,that is,fixed-length roof cutting,can reduce support load and keep immediate roof intact.The extended finite element method(XFEM)is applied to simulate hydraulic fracturing.The results show that both the axial and transverse hydraulic fracturing cannot effectively create vertical HFs.Therefore,a novel construction method of vertical HF based on the stress shadow effect(SSE)is proposed.The stress reversal region and HF orientation caused by the prefabricated hydraulic fracture(PF)are verified in simulation.The sub-vertical HFs are obtained between two PFs,the vertical extension range of which is much larger than that of directional hydraulic fracturing.The new construction method was used to determine the field plan for fixed-length roof cutting.The roof formed a stable suspended structure and deformation of the main PLRR was improved after hydraulic fracturing. | Feiteng Zhang Xiangyu Wang Jianbiao Bai Wenda Wu Bowen Wu Guanghui Wang | 2022 | International Journal of Mining Science and Technology2022，32，2： | 4 |
| 9 | Influences of Geometric Parameters upon Nozzle Performances in Scramjets显示文摘这篇文章调查并且介绍在它的嘴表演之上施加的一个超音速冲压式喷气发动机的几何参数的影响。这些参数包括分叉的角度,全部的长度,高度比率,在长度,和在角度。在超音速冲压式喷气发动机嘴以内的流动地被与联合含蓄的解答者和一个 RNG k- 骚乱模型联合使用 CFD softwareFLUENT 数字地模仿。 | Li Jianping Song Wenyan Xing Ying Luo Feiteng | 2008 | Chinese Journal of Aeronautics2008，21，6： | 4 |
| 10 | Glacier Volume Calculation from Ice-Thickness Data for Mountain Glaciers—A Case Study of Glacier No. 4 of Sigong River over Mt. Bogda, Eastern Tianshan, Central Asia显示文摘The determination of total glacial volume is important for the observation of climatic change and its consequences such as global sea-level rise. The tongue area of Glacier No. 4 of Sigong River over Mt. Bogda, eastern Tianshan was surveyed by ground-penetrating radar(GPR) and real time kinematic(RTK)-global positioning system(GPS) during the summer campaign 2009. In order to calculate the glacier volume, both co-kriging algorithm and estimation based on the theory of perfectly plastic material were employed. Results indicated that the ice-thickness distribution of the investigated glacier ranges from 0 to 105.0 m, with the mean thickness of 27.6 m in 2009. The corresponding ice volume was ~0.076 km3(~0.068 km3 water equivalent). The bedrock topography shows more undulating than the glacier surface. The difference of the calculated ice volume in this study and the estimated value from the empirical formula is large. Therefore, it is urgent to validate the applicability of the existing empirical formula. | Puyu Wang Zhongqin Li Wenbin Wang Huilin Li Feiteng Wang | 2014 | Journal of Earth Science2014，25，2： | 3 |
| 11 | 60-year changes and mechanisms of Urumqi Glacier No.1 in the eastern Tianshan of China,Central Asia显示文摘Worldwide examination of glacier change is based on detailed observations from only a small number of glaciers.The ground-based detailed individual glacier monitoring is of strong need and extremely important in both regional and global scales.A long-term integrated multi-level monitoring has been carried out on Urumqi Glacier No.1(UG1)at the headwaters of the Urumqi River in the eastern Tianshan Mountains of Central Asia since 1959 by the Tianshan Glaciological Station,Chinese Acamedey of Sciences(CAS),and the glaciological datasets promise to be the best in China.The boundaries of all glacier zones moved up,resulting in a shrunk accumulation area.The stratigraphy features of the snowpack on the glacier were found to be significantly altered by climate warming.Mass balances of UG1 show accelerated mass loss since 1960,which were attributed to three mechanisms.The glacier has been contracting at an accelerated rate since 1962,resulting in a total reduction of 0.37 km2 or 19.3%from 1962 to 2018.Glacier runoff measured at the UG1 hydrometeorological station demonstrates a significant increase from 1959 to 2018 with a large interannual fluctuation,which is inversely correlated with the glacier's mass balance.This study analyzes on the changes in glacier zones,mass balance,area and length,and streamflow in the nival glacial catchment over the past 60 years.It provides critical insight into the processes and mechanisms of glacier recession in response to climate change.The results are not only representative of those glaciers in the Tianshan mountains,but also for the continental-type throughout the world.The direct observation data form an essential basis for evaluating mountain glacier changes and the impact of glacier shrinkage on water resources in the interior drainage rivers within the vast arid and semi-arid land in northwestern China as well as Central Asia. | ZhongQin Li HuiLin Li ChunHai Xu YuFeng Jia FeiTeng Wang PuYu Wang XiaoYing Yue | 2020 | Research in Cold and Arid Regions2020，12，6： | 2 |
| 12 | Physico-chemical Characteristics and Environmental Significance of Snow Deposition on Haxilegen Glacier No.51 in Tian Shan,China显示文摘Snow chemistry on the glaciers of alpine regions is a good indicator of atmospheric environmental change.We examine snow chemistry in three snowpits at different altitudes on the Haxilegen Glacier No.51,in the Kuitun River source,Tian Shan,China,during July-September 2004 to 2007.We use correlation analysis,factor analysis and sea-salt tracing methods to examine the characteristics and sources of major ions and mineral dust particles in the snow.Results show that mineral dust particles and major ions in the snow pits vary seasonally.During the Asian dust period in springtime,the concentration of mineral dust particles and major ions deposited in snow is high,while the concentration is relatively low during the non-dust period of summer and autumn.This may be caused by dust storm activity in central Asia.The order of major ionic concentrations in the snow packs was determined to be Ca2+ > SO42-> NH4+ > NO3-> Cl-> Na+ > Mg2+ > K+.Ca2+ was the dominant cation;SO42- was the dominant anion.We find,with the exception of NO3-,that the variabilities of ionic concentrations are highly correlated.Results show that the glacier region was significantly affected by dust activity and anthropogenic source.The major ions,especially Na+,originate from dust sources of central Asia and from the Ocean,transported by the westerly winds. | DONG Zhiwen LI Zhongqin ZHANG Mingjun WANG Feiteng WU Lihua | 2011 | Journal of Mountain Science2011，8，3： | 2 |
| 13 | Stable isotope in precipitation in China:A review显示文摘The isotope ratios in precipitation are associated with various meteorological processes and display obvious spatial and temporal distributions,and thus can be used as important techniques in inversing atmospheric processes,tracing vapor sources,and reflecting the local weather and climate conditions.The composition and distribution of stable isotopes in precipitation in China are summarized and the factors that influence isotope ratios are elucidated.An overview of related research progress in China during the past several decades is presented and the prospects for future work in this subject area are described. | YaJu Li MingJun Zhang ShengJie Wang ZhongQin Li FeiTeng Wang | 2012 | Research in Cold and Arid Regions2012，4，1： | 1 |
| 14 | Incorporating environmentai co-benefits into climate policies:A regional study of the cement industry in China显示文摘 | Xi Yang FeiTeng GehuaWang | | 0，，112： | 1 |
| 15 | Characteristics of atmospheric dust deposition in snow on the glaciers of the east- em Tien Shan, China 显示文摘 | Dong Zhiwen Li Zhongqin Wang Feiteng | 2009 | Journal of Glaciology2009，55，193： | 1 |
| 16 | Effect of inlet-valve structures on thrust of airbreathing pulse detonation engines显示文摘Experimental studies were conducted in order to improve the understanding of the thrust generation and the pressure/flame reverse propagation of the air-breathing pulse detonation engines(APDEs)with self-designed inlets and valves structures.The present experimental research utilized a gasoline/air APDE(with 68 mm inner-diameter,2050 mm length and maximum operating frequency not less than 40 Hz which was as a benchmark structure)at different operating frequencies,with freestream air inflow of 1.1 atm and 0℃.The theoretical equivalence ratio of gasoline/air was 1.Two kinds of inlets with centerbody or without were considered and combined with two kinds of self-designed valves(the elastic-valve and the convergent aero-valve)specially designed for comparative experiments.During the test,the inflow parameters,the pressure along the longitudinal direction inside the engine and the thrust force were measured for the APDE operating characteristic analysis,including the detonation combustion,the aerodynamic drag,the pressure/flame reverse propagation and the thrust generation.The research results indicate that:The inlet centerbody does not increase drag but plays a positive effect on airflow stability and operation matching.The elastic-valve and the convergent aero-valve,though increase the inlet aerodynamic drag,have obvious effects on suppressing the detonation wave and pressure forward propagation,resulting in effective thrust increase.Effects of the convergent aero-valve are the best when the flow choked,while the effects of elastic-valve are better and continuously stable in a wider range of frequency.The wmaximum nondimensional thrust increases with the elastic-valve is reached about 1.12 at the frequency of 8-9 Hz,and about 0.97 with the convergent aero-valve at the frequency of 7 Hz.The maximum fuel specific impulse is 2514.6 s when using the convergent aerovalve.And this study provides technical reserve for the APDE optimization design. | Wenjuan Chen Wei Fan Feiteng Luo Gaohu Tang Yaosong Long | 2021 | Propulsion and Power Research2021，10，4： | 1 |
| 17 | A single‐center retrospective analysis of liver transplantation on 255 patients with hepatocellular carcinoma显示文摘 | Zheng‐XinWang Shao‐HuaSong FeiTeng Gui‐HuaWang Wen‐YuanGuo Xiao‐MinShi JunMa You‐MinWu Guo‐ShanDing Zhi‐RenFu | 2010 | Clinical Transplantation2010，，6： | 1 |
| 18 | AN ADAPTIVE HYBRID STRESS TRANSITION QUADRILATERAL FINITE ELEMENT METHOD FOR LINEAR ELASTICITY显示文摘在这份报纸,我们讨论一个适应混合压力为线性弹性问题的四边的网孔上的有限元素方法。处理在适应网孔精炼产生的挂的节点,我们建议混合应力的新转变类型有 5 ~ 7 个节点的四边的元素。特别地,我们导出一个 priori 错误评价让 5- 节点转变混血儿压力元素证明它是免费的从锁泊松,在错误跳了在的意义 priori 估计独立于瘸的常数。我们介绍,为四边的网孔, refinement/coarsening 算法,不要求明确地存储精炼树,并且给一个适应算法。最后,我们提供一些数字结果。[从作者抽象] | Feiteng Huang Xiaoping Xie Chensong Zhang | 2016 | Journal of Computational Mathematics2016，34，4： | 0 |
| 19 | Spatiotemporal variations in surface albedo during the ablation season and linkages with the annual mass balance on Muz Taw Glacier,Altai Mountains显示文摘Melt-albedo feedback on glaciers is recognized as important processes for understanding glacier behavior and its sensitivity to climate change.This study selected the Muz Taw Glacier in the Altai Mountains to investigate the spatiotemporal variations in albedo and their linkages with mass balance,which will improve our knowledge of the recent acceleration of regional glacier shrinkage.Based on the Landsat-derived albedo,the spatial distribution of ablation-period albedo was characterized by a general increase with elevation,and significant east–west differences at the same elevation.The gap-filling MODIS values captured a nonsignificant negative trend of mean ablation-period albedo since 2000,with a total decrease of approximately 4.2%.From May to September,glacier-wide albedo exhibited pronounced V-shaped seasonal variability.A significant decrease in annual minimum albedo was found from 2000 to 2021,with the rate of approximately−0.30%yr−1 at the 99%confidence level.The bivariate relationship demonstrated that the change of ablation-period albedo explained 82%of the annual mass-balance variability.We applied the albedo method to estimate annual mass balance over the period 2000–2015.Combined with observed values,the average mass balance was−0.82±0.32 m w.e.yr−1 between 2000 and 2020,with accelerated mass loss. | Xiaoying Yue Zhongqin Li Feiteng Wang Jun Zhao Huilin Li Changbin Bai | 2022 | International Journal of Digital Earth2022，15，1： | 0 |
| 20 | Impact of age and tumor size on the development of the Kasabach-Merritt phenomenon in patients with kaposiform hemangioendothelioma:a retrospective cohort study显示文摘Introduction The Kasabach–Merritt phenomenon(KMP)is a severe complication of kaposiform hemangioendothelioma(KHE).The risk factors for KMP need further investigation.Methods The medical records of patients with KHE were reviewed.Univariate and multivariate logistic regression models were used for the risk factors for KMP,and the area under the receiver operator characteristic(ROC)curve was used to assess the predictive power of risk factors.Results A total of 338 patients with KHE were enrolled.The incidence of KMP was 45.9%.Age of onset(P<0.001,odds ratio[OR]0.939;95%confidence interval[CI]0.914–0.966),lesion size(P<0.001,OR 1.944;95%CI 1.646–2.296),mixed type(P=0.030,OR 2.428;95%CI 1.092–5.397),deep type(P=0.010,OR 4.006;95%CI 1.389–11.556),and mediastinal or retroperitoneal lesion location(P=0.019,OR 11.864;95%CI 1.497–94.003)were correlated with KMP occurrence through multivariate logistic regression.ROC curve analysis revealed that the optimal cutoffs were 4.75 months for the age of onset(P<0.001,OR 7.206,95%CI 4.073–12.749)and a lesion diameter of 5.35 cm(P<0.001,OR 11.817,95%CI 7.084–19.714).Bounded by a lesion size of 5.35 cm,we found significant differences in tumor morphology,age of onset,treatments,and hematological parameters.Using an onset age of 4.75 months as a cutoff,we found significant differences in tumor morphology,lesion size,hematological parameters,and prognosis.Conclusion For KHE patients with an onset age<4.75 months and/or lesion diameter>5.35 cm,clinicians should be wary of the occurrence of KMP.Active management is recommended to improve the prognosis. | Jiangyuan Zhou Yuru Lan Tong Qiu Xue Gong Zixin Zhang Chunshui He Qiang Peng Fan Hu Xuepeng Zhang Guoyan Lu Liqing Qiu Feiteng Kong Yongbo Zhang Siyuan Chen Yi Ji | 2023 | Precision Clinical Medicine2023，6，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员