نتایج جستجو برای: aerosol properties

تعداد نتایج: 893447  

2008
J. Wang Y.-N. Lee P. H. Daum

Aerosol microphysics, chemical composition, and CCN properties were measured on the Department of Energy Gulfstream-1 aircraft during the Marine Stratus/Stratocumulus Experiment (MASE) conducted over the coastal waters between Point Reyes National Seashore and Monterey Bay, California, in July 2005. Aerosols measured during MASE included free tropospheric aerosols, marine boundary layer aerosol...

Journal: :Earth, Planets and Space 1998

Journal: :iranian journal of pharmaceutical research 0
jung-taek kwon laboratory of toxicology, college of veterinary medicine, seoul 151-742, korea. hu-lin jiang 1- laboratory of toxicology, college of veterinary medicine, seoul 151-742, korea. 2- school of pharmacy, china pharmaceutical university, nanjing 210009, china. arash minai-tehrani laboratory of toxicology, college of veterinary medicine, seoul 151-742, korea. chang gyu woo nanotechnology and thermal processing laboratory, school of mechanical and aerospace engineering, seoul 151-742, korea. mansoo choi nanotechnology and thermal processing laboratory, school of mechanical and aerospace engineering, seoul 151-742, korea. chong-su cho research institute for agriculture and life sciences, seoul national university, seoul 151-742, korea.

chitosan-graft-polyethylenimine (chi-g-pei) copolymer has been used for theimprovement of low transfection efficiency of chitosan. the present study aims to test thepulmonary toxicity and efficiency of chi-g-pei as an aerosol gene carrier. mice were exposedto aerosol containing green-fluorescent protein (gfp)-polyethylenimine (pei) or gfp-chig-pei complexes for 30 min during the development of ...

2006
Gavin R. McMeeking Sonia M. Kreidenweis Melissa Lunden Jacqueline Carrillo Christian M. Carrico Taehyoung Lee Pierre Herckes Guenter Engling Derek E. Day Jennifer Hand Nancy Brown William C. Malm Jeffrey L. Collett

Observations of aerosol physical, chemical, and optical properties made at 38 locations in Washington, Oregon, and California are presented to show the regional-scale influence of wildfire smoke during the summer of 2002. Aerosol measurements made during an intensive field campaign conducted in July, August, and September 2002 in Yosemite National Park indicated that smokeimpacted aerosols were...

2017

Calculations of aerosol radiative forcing require knowledge of wavelength-dependent aerosol optical properties, 10 such as single scattering albedo. These aerosol optical properties can be calculated using Mie theory from knowledge of the key microphysical properties of particle size and refractive index, assuming that atmospheric particles are well-approximated to be spherical and homogeneous....

Journal: :European Respiratory Journal 1994

Journal: :Atmospheric Chemistry and Physics 2019

2013
Li-jun Zhao Feng Wang Kun Zhang L Li Z Q Li M Wendisch

Microphysical properties and chemical compositions of aerosol particles determine polarized radiance distribution in the atmosphere. In this paper, the influences of different aerosol properties (particle size, shape, real and imaginary parts of refractive index) on Stokes parameters of polarized skylight in the solar principal and almucantar planes are studied by using vector radiative transfe...

2007
P. Stier J. H. Seinfeld S. Kinne

We present a comprehensive examination of aerosol absorption with a focus on evaluating the sensitivity of the global distribution of aerosol absorption to key uncertainties in the process representation. For this purpose we extended the comprehensive aerosol-climate model ECHAM5HAM by effective medium approximations for the calculation of aerosol effective refractive indices, updated black car...

2012
T. Cheng

A new aerosol retrieval algorithm using multiangular total and polarized measurements is presented. The algorithm retrieves aerosol optical depth (AOD), fine-mode fraction (FMF) for studying the impact of aerosol on climate change. The retrieval algorithm is based on a lookup table (LUT) method, which assumes that one fine and one coarse lognormal aerosol modes can be combined with proper weigh...

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