Πλοήγηση ανά Θέμα "SURFACE"
Αποτελέσματα 21-31 από 31
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Nonlinear resonance in viscous films on inclined wavy planes
(2009)We study nonlinear resonance in viscous gravity-driven films flowing over undulated substrates. Numerical solution of the full, steady Navier-Stokes equations is used to follow the emergence of the first few free-surface ... -
Observations of solitary wave dynamics of film flows
(2001)Experimental results are reported on non-stationary evolution and interactions of waves forming on water and water-glycerol solution flowing along an inclined plane. A nonlinear wave generation process leads to a large ... -
P wave analysis indices in young healthy men: Data from the Digital Electrocardiographic Study in Hellenic Air Force Servicemen (DEHAS)
(2003)P wave analysis from the 12-lead ECG is a recent contribution of noninvasive electrocardiology. P wave analysis indices (maximum and minimum P wave duration, P wave dispersion [P-dis = P-max - P-min], adjusted P wave ... -
Persistence of pendimethalin in cotton fields under sprinkler or drip irrigation in central Greece
(2004)The dissipation of pendimethalin was investigated in soils of cotton fields in Thessaly, central Greece, for a period of two years. The fields were irrigated either with sprinkler or with sprinkler for the first two ... -
Phosphate Adsorption from Aqueous Solutions onto Goethite, Bentonite, and Bentonite-Goethite System
(2013)The present paper examines the phosphate adsorption from aqueous solutions onto goethite, bentonite, and bentonite-goethite system. The properties of the materials were studied by X-ray diffraction (XRD), attenuated total ... -
Photocatalytic treatment of colored wastewater from medical laboratories: Photocatalytic oxidation of hematoxylin
(2006)The decolorization and organic content reduction of a synthetic Harris' Hematoxylin (SHH) solution, which is widely used in biochemical and biomedical laboratories, by the use of heterogeneous and homogeneous photocatalytic ... -
Satellite Visible-Near Infrared Reflectance Correlates to Soil Nitrogen and Carbon Content in Three Fields of the Thessaly Plain (Greece)
(2013)Surface visible-near infrared (NIR) reflectance of bare soil by remote sensing devices has been used to infer topsoil properties such as organic matter, soil texture, water content, salinity, and crop residue cover. Spectral ... -
Short- to long-wave resonance and soliton formation in boundary-layer interaction with a liquid film
(2010)Dynamic interaction between a boundary layer of air and a liquid film is investigated in this paper. The low air-to-film-viscosity ratio is considered in which case the boundary layer is quasi-steady on the time scale ... -
Simulation models of pesticide fate and transport in paddy environment for ecological risk assessment and management
(2008)Rice production is one of the major non-point sources of pesticide pollution in Japan. Monitoring of pesticide concentrations in river systems detected a number of herbicides commonly used in paddy fields, and these ... -
Solitary waves on inclined films: their characteristics and the effects on wall shear stress
(2006)The properties of solitary waves, developing from inlet disturbances of controlled frequency along an inclined film flow, are systematically studied experimentally and computationally. Time-variations of film height and ... -
Steady solutions of inertial film flow along strongly undulated substrates
(2011)Steady flow of a liquid film along sinusoidal, steeply corrugated walls is investigated by finite-element simulation of the 2D Navier-Stokes equations. Resonance between the wall and capillary-gravity waves travelling ...