Results 21 to 30 of about 754,315 (292)

Entropy Generation during Head-On Interaction of Premixed Flames with Inert Walls within Turbulent Boundary Layers

Entropy, 2022
The statistical behaviours of different entropy generation mechanisms in the head-on interaction of turbulent premixed flames with a chemically inert wall within turbulent boundary layers have been analysed using Direct Numerical Simulation data.
Sanjeev Kr. Ghai, Umair Ahmed, Nilanjan Chakraborty, Markus Klein   +3 more
doaj   +1 more source

Mesospheric anomalous diffusion during noctilucent clouds [PDF]

, 2018
The Andenes specular meteor radar shows meteor-trail diffusion rates increasing on average by ~ 20% at times and locations where a lidar observes noctilucent clouds (NLCs).
Chau, Jorge L., Fiedler, Jens, Laskar, Fazlul I., Oppenheim, Meers M., Pallamraju, Duggirala, Pedatella, Nocholas M., Renkwitz, Toralf, Stober, Gunter, Tsutsumi, Masaki   +8 more
core   +1 more source

Investigation of Ytterbium Incorporation in Lithium Niobate for Active Waveguide Devices

Applied Sciences, 2020
In this work, we report on an investigation of the ytterbium diffusion characteristics in lithium niobate. Ytterbium-doped substrates were prepared by in-diffusion of thin metallic layers coated onto x- and z-cut congruent substrates at different ...
Christian E. Rüter, Dominik Brüske, Sergiy Suntsov, Detlef Kip   +3 more
doaj   +1 more source

Simulation of composition changes in reservoirs with large hydrocarbon columns and temperature gradient

Georesursy, 2018
This paper compares three methods for calculation of initial composition variation with depth in hydrocarbon reservoirs: considering thermal diffusion, considering temperature gradient without thermal diffusion effects; and by gravity forces only. Newton
A.V. Yashin, I.M. Indrupskiy, O.A. Lobanova   +2 more
doaj   +1 more source

THERMAL SMEARING OF INFRARED PATTERN ON THE SURFACE OF A THIN FILM HTSC BOLOMETER

Radio Physics and Radio Astronomy, 2019
Purpose: Composite superconducting bolometers of various cooling levels are widely used in astronomy for detecting radiation in the far IR, submillimeter and millimeter wavelength ranges.
E. Yu. Gordiyenko, N. I. Glushchuk, O. G. Turutanov, Yu. V. Fomenko, G. V. Shustakova   +4 more
doaj   +1 more source

In-Fiber Thermally Diffused Coupler and Fiber Bragg Grating Inscribed in Twin-Core Fiber for Sensitivity-Enhanced Vector Bending Sensing

Photonic Sensors, 2023
A vector bending fiber sensor based on core-by-core inscribed fiber Bragg gratings in a twin-core fiber has been proposed and experimentally demonstrated.
Lingzhi Meng, Hongye Wang, Qi Xia, Tingting Yuan, Xiaotong Zhang, Libo Yuan   +5 more
doaj   +1 more source

Turbulent thermal diffusion in a multi-fan turbulence generator with the imposed mean temperature gradient

, 2006
We studied experimentally the effect of turbulent thermal diffusion in a multi-fan turbulence generator which produces a nearly homogeneous and isotropic flow with a small mean velocity. Using Particle Image Velocimetry and Image Processing techniques we
A Aliseda, A Eidelman, A. Eidelman, AK Blackadar, AV Korolev, GT Csanady, I. Rogachevskii, I. Sapir-Katiraie, J Buchholz, J Westerweel, J Westerweel, JH Seinfeld, JK Eaton, JR Fessler, LP Wang, M Birouk, MR Maxey, MR Maxey, MW Reeks, N. Kleeorin, R Flagan, R Jaenicke, RA Shaw, RJ Adrian, T Elperin, T Elperin, T Elperin, T Elperin, T Elperin, T Fallon, T. Elperin   +30 more
core   +1 more source

Observation of centimetre-scale argon diffusion in alkali feldspars: implications for ⁴⁰Ar/³⁹Ar thermochronology [PDF]

, 2013
New data from a gem-quality feldspar from Itrongay, Madagascar, record naturally occurring 40Ar/39Ar age profiles which can be numerically modelled by invoking a single diffusion mechanism and show that microtexturally simple crystals are capable of ...
Flude, Stephanie, Halton, Alison M., Kelley, Simon P., Schwanethal, James, Sherlock, Sarah C., Wilkinson, Camilla M.   +5 more
core   +3 more sources

Chemically Reacting Jeffrey Fluid Flow Over a Deformable Porous Layer with Entropy Generation Analysis

International Journal of Applied Mechanics and Engineering, 2022
Entropy generation of a steady Jeffrey fluid flow over a deformable vertical porous layer is analysed with consideration of a first-order chemical reaction and thermal diffusion.
Utpal Jyoti Das
doaj   +1 more source

Turbulent Diffusion and Turbulent Thermal Diffusion of Aerosols in Stratified Atmospheric Flows

, 2009
The paper analyzes the phenomenon of turbulent thermal diffusion in the Earth atmosphere, its relation to the turbulent diffusion and its potential impact on aerosol distribution.
Atreya, Bertaux, Blackadar, Brandenburg, Brasseur, Buchholz, Caporaloni, Chassaing, Collins, Csanady, Dalaudier, Eidelman, Eidelman, Eidelman, Elperin, Elperin, Elperin, Elperin, Elperin, Elperin, Elperin, Elperin, Elperin, et al., Fessler, Flagan, Friedlander, Fujiwara, Galperin, Genikhovich, I. Rogachevskii, Jensen, Khain, Kyrölä, M. Sofiev, Maxey, McComb, Moffatt, Monin, N. Kleeorin, Orszag, Pandya, Parameswaran, Pinsky, Pouquet, Reeks, Roberts, Rogachevskii, S. S. Zilitinkevich, Shaw, Sofiev, Sofiev, Sofieva, T. Elperin, V. Sofieva, Vanhellemont, Wang, Wyngaard, Yamamoto, Zilitinkevich, Zilitinkevich   +60 more
core   +1 more source