Results 251 to 260 of about 509,491 (297)

Moisture diffusion modeling – A critical review

Microelectronics Reliability, 2016
Abstract Techniques for enforcing the continuity of solute field in heterogeneous solvent under the conditions of steady temperature-humidity, steady temperature but dynamic humidity, and dynamic temperature are reviewed. The continuity of the wetness technique is justified on the principle of equality of chemical potential.
Ee-Hua Wong, S. B. Park
openaire   +2 more sources

Microwave Heat Treatment of Spinach: Drying Kinetics and Effective Moisture Diffusivity

Drying Technology, 2007
The effect of microwave drying technique on moisture content, moisture ratio, drying rate, drying time, effective moisture diffusivity, and porosity of spinach (Spinacia oleracea L.) were investigated. By increasing the microwave output powers (180-900 W)
Belma Özbek, Elçin Demirhan, Gökçe Dadali   +2 more
exaly   +2 more sources

On Moisture Diffusion Modeling Using Thermal-Moisture Analogy

Journal of Electronic Packaging, 2007
Thermal-moisture analogy schemes for a moisture diffusion analysis are reviewed. Two schemes for practical applications are described using the governing equations of heat and mass diffusions: (1) direct analogy and (2) normalized analogy. The schemes are implemented to define valid domains of application.
Samson Yoon, Bongtae Han, Zhaoyang Wang
openaire   +1 more source

Diffusion of moisture into building materials: A model for moisture transport

Energy and Buildings, 2014
Abstract Presence of moisture in the building materials leads to a larger energy loss, especially in winter; therefore, drying is important to improve the energy efficiency of buildings. The drying process is based on the evaporation of the liquid water on the material surface where the water vapor releases to surrounding, or it is based on the ...
Eva Litavcova, Azra Korjenic, Sinan Korjenic, Miron Pavlus, Ibrohim Sarhadov, Jan Seman, Thomas Bednar   +6 more
openaire   +1 more source

In-Plane Diffusivity of Moisture in Paper

Drying Technology, 1997
ABSTRACT Any nonuniformity in local moisture content of paper which develops during drying because of locally nonuniform drying rates provides a driving force for in-plane diffusion of moisture, which in turn acts to reduce this moisture nonuniformity.
S.J. Hashemi, V.G. Comes, R.H. Crotogino, W.J.M. Douglas   +3 more
openaire   +1 more source

Moisture diffusion in epoxy systems

Journal of Applied Polymer Science, 1999
The moisture diffusion process of an epoxy system is studied as a function of epoxy-amine stoichiometry and the resulting microstructure. Differences in diffusion behavior are related to the relative importance of diffusion through the low-density and high-density microstructural phases for different stoichiometries.
M. R. Vanlandingham, R. F. Eduljee, J. W. Gillespie   +2 more
openaire   +1 more source

Influence of moisture on the diffusion of ultrasound in concrete

Ultrasonics
This study aimed to investigate the effects of internal moisture migration and subsequent drying-shrinkage-induced micro-cracking in concrete on diffuse ultrasound, through a series of experiments that comprised multiple drying and rewetting cycles carried out over the long-term.
Eunjong, Ahn, Homin, Song, Myoungsu, Shin, John S, Popovics   +3 more
openaire   +2 more sources

Diffusion of moisture through grain

Journal of Stored Products Research, 1971
Abstract Small parcels (120 g) of wet wheat were embedded in 550 g lots of dry wheat and observed to take 65 days at 22·5°C and more than 140 days at 5°C to reach equilibrium. A difference in moisture content of 0·5 per cent remained after 140 days at 22·5°C due to hysteresis.
S.W. Pixton, H.J. Griffiths
openaire   +1 more source

Moisture Diffusivity of Unidirectional Composites

Journal of Composite Materials, 1982
The moisture diffusion in unidirectional fiber-reinforced composite materials is formulated in terms of relative moisture concentration which cor responds to the temperature for the heat conduction problem. And the effec tive transverse moisture diffusivity of the composite materials with random array packing of fibers is predicted based on the ...
Kyohei Kondo, Toshimi Taki
openaire   +1 more source

The Measurement of Soil Moisture Diffusivity

Soil Science Society of America Journal, 1956
Abstract The solution of the differential equation describing the flow of moisture in unsaturated porous media is difficult because of the dependence of the permeability on moisture content. In the case of horizontal flow this equation can be written in a form similar to the non‐linear diffusion equation.
R. R. Bruce, A. Klute
openaire   +1 more source