Results 241 to 250 of about 1,013,179 (277)
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Analytical Chemistry, 2013
We demonstrate that the equilibrium hygroscopic response of an aerosol droplet and the kinetics of water condensation and evaporation can be retrieved with high accuracy, even close to saturation, through comparative measurements of probe and sample aerosol droplets.
Davies, James F. +3 more
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We demonstrate that the equilibrium hygroscopic response of an aerosol droplet and the kinetics of water condensation and evaporation can be retrieved with high accuracy, even close to saturation, through comparative measurements of probe and sample aerosol droplets.
Davies, James F. +3 more
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30—HEAT AND MOISTURE EXCHANGE IN WOOL BEDS: EQUILIBRIUM THEORY IN THE HYGROSCOPIC RANGE
The Journal of The Textile Institute, 1972Cassie's theory of propagation of heat and moisture changes in beds of wool fibres is re-examined by means of the method of characteristics. Substantial differences result in the predictions of the theory by treating the coefficients of the pertinent differential equations as functions of the dependent variables rather than as constants.
P. Nordon, N. W. Bainbridge
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Journal of Applied Meteorology, 1996
Theoretical analysis shows that when water activity is larger than its threshold value and the dry radius of a particle is larger than 0.005 μm, the deviation of curvature correction from unity can be accurately represented by the product of two terms, with one term strongly depending upon water activity and the other depending upon dry radius ...
Shuowen Yang, William R. Cotton
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Theoretical analysis shows that when water activity is larger than its threshold value and the dry radius of a particle is larger than 0.005 μm, the deviation of curvature correction from unity can be accurately represented by the product of two terms, with one term strongly depending upon water activity and the other depending upon dry radius ...
Shuowen Yang, William R. Cotton
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Pharmaceutical Development and Technology, 2005
The behavior of moisture gain and equilibrium moisture content (EMC) was determined for 30 drug substances at relative humidities (RH) ranging from 11% to 93%. Based on the results, the drugs were categorized into different classes, following the classification system proposed by Callahan et al.
N A, Visalakshi +3 more
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The behavior of moisture gain and equilibrium moisture content (EMC) was determined for 30 drug substances at relative humidities (RH) ranging from 11% to 93%. Based on the results, the drugs were categorized into different classes, following the classification system proposed by Callahan et al.
N A, Visalakshi +3 more
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Effects of Non-Equilibrium Hygroscopic Growth of (NH4)2SO4 on Dry Deposition to Water Surfaces
Environmental Science & Technology, 1998Growth of hygroscopic aerosols near water surfaces is believed to enhance dry deposition rates, which are a strong function of particle size. Previous dry deposition models estimate hygroscopic growth by assuming equilibrium between aerosols and water vapor (Williams, R. M. Atmos. Environ. 1982, 16, 1933-1938).
Maria J. Zufall +2 more
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Aerosol Science and Technology
Surface active molecules present in ambient aerosols, including sea spray, have been suggested to reduce their surface tension during hygroscopic growth and lower the barrier to cloud droplet activation.
Emily K. Werner +2 more
semanticscholar +1 more source
Surface active molecules present in ambient aerosols, including sea spray, have been suggested to reduce their surface tension during hygroscopic growth and lower the barrier to cloud droplet activation.
Emily K. Werner +2 more
semanticscholar +1 more source
Empirical study of durian fruit slices hygroscopic parameters
Food industriesThe use of various drying methods to reduce water activity allows preserving the native properties of any plant material, including tropical fruits.
Trung T. Vo +5 more
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Journal of Aerosol Science, 2006
Abstract The effect of surface tension (the Kelvin effect) on the equilibrium radius of an aqueous solution drop at fractional relative humidity h less than unity is analyzed mathematically. Expressions for the lowest-order corrections to the equilibrium radius and radius ratio (relative to the volume-equivalent dry radius r dry ) due to ...
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Abstract The effect of surface tension (the Kelvin effect) on the equilibrium radius of an aqueous solution drop at fractional relative humidity h less than unity is analyzed mathematically. Expressions for the lowest-order corrections to the equilibrium radius and radius ratio (relative to the volume-equivalent dry radius r dry ) due to ...
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Drying Technology
Microwave treatment enhances the hygroscopic stability of fast-growing Eucalyptus grandis × urophylla through the synergistic effect of chemical and structural evolution. This study explored the moisture response of earlywood and latewood after microwave
Yongle Zhang +4 more
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Microwave treatment enhances the hygroscopic stability of fast-growing Eucalyptus grandis × urophylla through the synergistic effect of chemical and structural evolution. This study explored the moisture response of earlywood and latewood after microwave
Yongle Zhang +4 more
semanticscholar +1 more source
Drying Technology
This study comparatively evaluates the effects of supercritical carbon dioxide dewatering (SCD) and conventional kiln drying (CKD) on the hygroscopicity, dimensional stability, chemical composition, and microstructure of moso bamboo (Phyllostachys edulis)
Honghai Liu, Sun Yuqi, Xie Yu
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This study comparatively evaluates the effects of supercritical carbon dioxide dewatering (SCD) and conventional kiln drying (CKD) on the hygroscopicity, dimensional stability, chemical composition, and microstructure of moso bamboo (Phyllostachys edulis)
Honghai Liu, Sun Yuqi, Xie Yu
semanticscholar +1 more source