全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:X. Cao , X. Cao ...
来源:[J].Climate of the Past(IF 3.556), 2019, Vol.15, pp.1503-1536DOAJ
摘要:We collected the available relative pollen productivity estimates (PPEs) for27 major pollen taxa from Eurasia and applied them to estimate plantabundances during the last 40 ka cal BP (calibrated thousand years beforepresent) using pollen counts from 203...
作者:X. Cao , M. E. Callow ...
来源:[J].Biointerphases(IF 1.905), 2012, Vol.7 (1-4), pp.1-7Springer
摘要:Abstract(#br)Settlement of the planktonic dispersal stages of marine organisms is the crucial step for the development of marine biofouling. Four-dimensional holographic tracking reveals the mechanism by which algal spores select surfaces suitable for colonization. Quantitative a...
作者:... Q. Li , X. Cao , J. Zhang
来源:[J].Atmospheric Chemistry and Physics(IF 5.51), 2018, Vol.18, pp.3919-3935DOAJ
摘要:A rapid development of a severe air pollution event in Beijing, China, at the end of November 2015 was investigated with unprecedented observations collected during the field campaign of the Study of Urban Rainfall and Fog/Haze (SURF-15). Different from previous statistical ...
作者:X. Cao , Y. Wang ...
来源:[J].Climate of the Past(IF 3.556), 2017, Vol.13 (2), pp.107-134DOAJ
摘要:The large variety of atmospheric circulation systems affecting theeastern Asian climate is reflected by the complex Asian vegetation distribution.Particularly in the transition zones of these circulation systems, vegetationis supposed to be very sensitive to climate change. ...
作者:X. Cao , J. Gao ...
来源:[J].Radioengineering(IF 0.687), 2017, Vol.26 (3), pp.705-712DOAJ
摘要:We propose a polarization-dependent multi-functional metamaterial using ring-cross resonator. Based on the analysis of surface current distributions induced by different polarized incidence, we demonstrate that the proposed metamaterial serves as a polarization filter, a tra...
作者:X. Cao , L. Zhang ...
来源:[J].Atmospheric Chemistry and Physics(IF 5.51), 2017, Vol.17 (4), pp.2509-2523DOAJ
摘要:The seasonal and spatial variations of verticaldistribution and optical properties of aerosols over China are studied usinglong-term satellite observations from the Cloud–Aerosol Lidar withOrthogonal Polarization (CALIOP) and ground-based lidar observations andAerosol Roboti...
作者:X. Cao , J. Gao
来源:[J].Radioengineering(IF 0.687), 2016, Vol.25 (3), pp.436-441DOAJ
摘要:We presented the investigation of broadband metamaterial reflector for polarization manipulation based on cross/ring resonators. It is demonstrated that the meta¬material reflector can convert the linearly polarized inci¬dent wave to its cross polarized wave or circularly po...
作者:X. Cao , J. Bao ...
来源:[J].Atmospheric Chemistry and Physics(IF 5.51), 2010, Vol.10 (9), pp.4283DOAJ
摘要:The vertical distribution of dust aerosol and its radiative properties are analysed using the data measured by the micropulse lidar, profiling microwave radiometer, sunphotometer, particulate monitor, and nephelometer at the Semi-Arid Climate and Environment Observatory of Lanzho...
作者:X. Cao , T. Liu
来源:[J].Radioengineering(IF 0.687), 2014, Vol.23 (1), pp.222-228DOAJ
摘要:To reduce the radar cross section (RCS) of a circularly polarized (CP) tilted beam antenna, a double-layer perfect metamaterial absorber (DLPMA) in the microwave frequency is proposed. The DLPMA exhibits a wider band by reducing the distance between the three absorption peak...
作者:X. Cao , B. Feng ...
来源:[J].Clinical Microbiology and Infection(IF 4.578), 2019, Vol.25 (9), pp.1120-1126Elsevier
摘要:Abstract(#br)Objectives(#br)Elderly individuals in rural China have been known to be at increased risk of contracting tuberculosis (TB) and developing active disease. This study aims to estimate the burden of m ycobacterium tuberculosis (MTB) infection and to identify potent...

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