搜索结果: 1-9 共查到“环境科学技术基础学科 Dust”相关记录9条 . 查询时间(0.193 秒)
Chemical Characterization of Fine and Coarse Particles in Gosan, Korea during Springtime Dust Events
Aerosol Dust Gosan Korea PAC-DEX Molecular markers
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2016/3/28
Particulate matter was collected at Gosan, Korea, a remote location in the East China Sea, from late-March through
May, 2007. Two sizes of particles, fine (PM2.5) and coarse (PM10–2.5) modes, were an...
Analysis of a Severe Dust Storm Event over China: Application of the WRF-Dust Model
Severe dust storm Eastern China WRF-Dust model
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2016/3/28
A severe dust storm (SDS) event occurred during March-20 to March-22, 2010 in China. A regional dynamical model
coupled with a dust model (WRF-Dust) is used for analyzing this SDS event. The distribu...
Measurement System Evaluation for Upwind/Downwind Sampling of Fugitive Dust Emissions
Fugitive dust Upwind/Downwind sampling Fence line Sand/Gravel operations PM10
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2016/3/28
Eight different PM10 samplers with various size-selective inlets and sample flow rates were evaluated for upwind/
downwind assessment of fugitive dust emissions from two sand and gravel operations in...
Microanalysis of Dust Deposition inside Emperor Qin's Terra-Cotta Warriors and Horses Museum
Dust deposition Terra-cotta warriors Museum Scanning electron microscopy
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2016/3/29
Indoor dust deposition, including long-term (>10 years) deposition, short-term (~0.5 year) deposition, and pigment flake
samples from partially restored warriors were collected in Emperor Qin's Terra...
Analysis on Dust Devil Containing Loess Dusts of Different Sizes
Dust devil Gas-particle flow Convective boundary layer Model simulation Particle size
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2016/3/30
Dust devil in convective boundary layer (CBL) was simulated by Euler-Lagrange approach. By
means of large-eddy simulation method and smoothly stretched grid, flow fields of the small scale
whirlwind...
Numerical Investigation of Flow and Dust Concentration Distributions in the Work Area of a Mountain Tunnel Currently under Construction
Numerical analysis Ventilation Dust concentration Particle motion
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2016/3/30
Flow patterns, dust concentration profile, and particle motion in a mountain tunnel under
construction were calculated numerically for a full-scale tunnel to evaluate the effectiveness
of the planne...
Characteristics and Emission Factors of Fugitive Dust at Gravel Processing Sites
fugitive dust emission factor gravel processing sites dimensionless analysis
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2016/3/30
Particles emitted from gravel processing sites have severely worsened ambient air quality. This study
analyzed the fugitive dust emission characteristics at selected pollution sources using several k...
Development of a New Method for Measuring the Protection Provided by Respirators against Dust and Microorganisms
workplace protection factor respirator penetration efficiency respiratory protection
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2016/3/30
The efficiency of respirators is usually determined by the protection factor, which is the ratio of the
particle concentration outside the respirator to that inside the respirator. Most studies on wo...
Influence of Operating Parameters on the Collection Efficiency and Size Distribution of Street Dust during Street Scrubbing
street scrubbing street dust loading particle size distribution collection efficiency
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2016/3/30
This study investigated the influence of operating parameters on the efficiency of collection of
street dust using a street scrubber. Street scrubbing tests were performed in a full-scale, street
sc...