Results 101 to 110 of about 888,402 (309)

Economic and environmental implications of the development of UASB reactors in Mexico for sustainable industrial wastewater treatment

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The objective of this work is to demonstrate that the inclusion of an up‐flow anaerobic sludge bed (UASB reactor) within an industrial wastewater treatment plant reduces the plant's investment and operating costs compared to a system based solely on conventional complete‐mix activated sludge (CMAS), operating under the same design principles ...
Juan Manuel Morgan‐Sagastume, Adalberto Noyola   +1 more
wiley   +1 more source

Mechanics of inhomogeneous turbulence and interfacial layers [PDF]

, 2006
The mechanics of inhomogeneous turbulence in and adjacent to interfacial layers bounding turbulent and non-turbulent regions are analysed. Different mechanisms are identified according to the straining by the turbulent eddies in relation to the strength ...
Hunt, J.C.R., Eames, I., Westerweel, J. (author), Westerweel, J., Eames, I. (author), Hunt, J.C.R. (author)   +5 more
core   +1 more source

Scaling properties of velocity and temperature spectra above the surface friction layer in a convective atmospheric boundary layer [PDF]

, 2007
We report velocity and temperature spectra measured at nine levels from 1.42 meters up to 25.7 m over a smooth playa in Western Utah. Data are from highly convective conditions when the magnitude of the Obukhov length (our proxy for the depth of the ...
Clement, R. J., Moncrieff, J. B., K. G. McNaughton, R. J. Clement, J. B. Moncrieff, McNaughton, K. G.   +5 more
core   +2 more sources

Comparison of modelling approaches for liquid fluidized beds

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study presents a comparison of three promising numerical models for the detailed simulation of liquid–solid fluidized bed. These models differ in their treatment of the solid phase, ranging from treating each particle individually to treating the collection of particles as a continuum.
Andreu Bernad‐Serra, Furkhat Khamitov, Olli H. Sorvari, Ville Alopaeus   +3 more
wiley   +1 more source

Impact of atmospheric turbulence on performance and loads of wind turbines: knowledge gaps and research challenges [PDF]

Wind Energy Science
Wind energy harvesting from the atmosphere takes place in the atmospheric boundary layer. The boundary layer shear and buoyancy create three-dimensional turbulent eddies spanning a range of scales that form a continuous forward cascade of kinetic energy ...
B. Kosović, S. Basu, J. Berg, L. K. Berg, S. E. Haupt, X. G. Larsén, J. Peinke, R. J. A. M. Stevens, P. Veers, S. Watson   +9 more
doaj   +1 more source

On the estimation of atmospheric turbulence layers for AO systems [PDF]

In current and next generation of ground telescopes, Adaptive Optics (AO) are employed to overcome the detrimental effects induced by the presence of atmospheric turbulence, that strongly affects the quality of data transmission and therefore limits ...
Cenedese, Angelo, Beghi, Alessandro, Masiero, Andrea   +2 more
core  

Laser guide stars and turbulence profiling for extremely large telescopes [PDF]

, 2006
The next generation of ground based telescopes, the so-called extremely large telescopes, will offer a significant leap in sensitivity and resolution compared to current telescopes. They also present a range of technical challenges.
Butterley, Timothy
core  

Stability of Viscous Three‐Dimensional Stratified Couette Flow via Dispersion and Mixing

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT This article explores the stability of stratified Couette flow in the viscous 3d$3d$ Boussinesq equations. In this system, mixing effects arise from the shearing background, and gravity acts as a restoring force leading to dispersive internal gravity waves.
Michele Coti Zelati, Augusto Del Zotto, Klaus Widmayer   +2 more
wiley   +1 more source

Experimental Characterization of Optical Turbulence Using Custom-Built Atmospheric Chamber for FSO Applications

IEEE Open Journal of the Communications Society
Free-space optical (FSO) communication has emerged as a promising solution for high-speed, high-bandwidth wireless transmission, overcoming the spectrum congestion and licensing constraints associated with radio frequency (RF) systems.
Dhruv, Hemani Kaushal, Matthew Eells, Arun K. Majumdar   +3 more
doaj   +1 more source

Acoustic‐driven surface cleaning with millimeter‐sized bubbles at translational resonance

Droplet, EarlyView.
Time‐lapse visualization comparing bubble trajectories. The top panel (0 Hz) shows a bubble's linear path under no acoustic forcing, while the bottom panel (50 Hz) demonstrates the oscillatory motion induced by acoustic waves at a resonance mode. This mechanism holds promising potential for applications such as surface cleaning.
Yan Jun Lin, Zhengyang Liu, Sunghwan Jung   +2 more
wiley   +1 more source