Results 91 to 100 of about 88,150 (253)

The Ratio of Helium- to Hydrogen-Atmosphere White Dwarfs: Direct Evidence for Convective Mixing

, 2007
We determine the ratio of helium- to hydrogen-atmosphere white dwarf stars as a function of effective temperature from a model atmosphere analysis of the infrared photometric data from the Two Micron All Sky Survey combined with available visual ...
Baglin A., Brassard P., Koester D., P. Bergeron, P.‐E. Tremblay, Strittmatter P. A., Vauclair G.   +6 more
core   +1 more source

Analytical Study of Soret and Dufour effect in the Electro-osmotic peristaltic flow of Rabinowitsch fluid model

, 2021
Saba S. Hasen, Ahmed M. Abdulhadi
openalex   +2 more sources

Diffusion-thermo effect with hall current on unsteady hydromagnetic flow past an infinite vertical porous plate

Alexandria Engineering Journal, 2017
An unsteady hydromagnetic flow past an infinite vertical porous plate has been analyzed to show the effect of an additional cross transport phenomenon, i.e.
J.R. Pattnaik, G.C. Dash, S. Singh
doaj   +1 more source

Near-UV absorption in very cool DA white dwarfs

, 2014
The atmospheres of very cool, hydrogen-rich white dwarfs (Teff
Holberg, J. B., Kowalski, P. M., Saumon, D.   +2 more
core   +1 more source

Soret and dufour effect of radiating fluid with Hall current and ramped wall temperature past vertical porous channel. [PDF]

, 2022
Juliet S. Sheeba, M. Vidhya, A. Govindarajan, E. Priyadarshini   +3 more
openalex   +1 more source

Computational analysis of Hall current, radiation absorption and diffusion thermo effects on unsteady MHD rotating flow of Casson fluid through porous media with chemical reaction

Physics Open
This study investigates the unsteady free-convective flow of an electrically conducting Casson fluid through a porous medium under the combined influences of Hall current, radiation absorption, Dufour effect, thermal radiation, Joule heating, viscous ...
G. Siddesh Babu, R. Bhuvana Vijaya
doaj   +1 more source

Entropy optimized nanomaterial flow with Soret and Dufour impacts

Engineering Science and Technology, an International Journal
The considered configuration has relevance for polymer extrusion, cable coating, spinning of filaments and metallurgical processes. In view of such important applications the irreversibility analysis in hydromagnetic Maxwell nanoliquid flow by stretching
Tasawar Hayat, Aimen Tahir, Aneeta Razaq, Sohail A. Khan   +3 more
doaj   +1 more source

Coffee berry borer triple-action integrated pest management [PDF]

, 2009
In coffee plantations, some of the coffee berry borer (#Hypothenemus hampei Ferrari#) females emerging from residual fruits survive by taking refuge in dry fruits remaining on the branches.
Dufour, Bernard Pierre
core  

The Discovery of the Most Metal-Rich White Dwarf: Composition of a Tidally Disrupted Extrasolar Dwarf Planet

, 2010
Cool white dwarf stars are usually found to have an outer atmosphere that is practically pure in hydrogen or helium. However, a small fraction have traces of heavy elements that must originate from the accretion of extrinsic material, most probably ...
Beauchamp, Becklin, Brassard, Debes, Dufour, Dufour, Eisenstein, F.-R. Lachapelle, Farihi, Friedrich, G. Fontaine, Gianninas, Jura, Jura, Jura, Jura, Jura, Jura, Jura, Kilic, Kilic, Kilic, Klein, Koester, Leggett, Limoges, Lodders, M. Kilic, P. Bergeron, P. Dufour, Reach, S. J. Kleinman, S. K. Leggett, von Hippel, Williams, Zuckerman   +35 more
core   +1 more source

Thermal magnetization transport analysis featuring darcian and multi-physical rheological characteristics in chemically reactive dual convective tangent-hyperbolic nanomaterial confined by vertical cone

Case Studies in Thermal Engineering
The Soret-Dufour characteristics elaborate the phenomena of cross-diffusion where solutal gradients yield heat flux (Dufour aspect) and thermal gradients engender mass flux (Soret effect).
Lihong Zhang, M. Nasir, M. Salman Kausar, Mawaheb Al-Dossari, M. Waqas, W.A. Khan, Dilsora Abduvalieva   +6 more
doaj   +1 more source