Results 71 to 80 of about 34,696 (227)

A-type stars: evolution, rotation and binarity

, 2004
We discuss the internal structure of stars in the mass range 1.5 to 4 M_sun from the PMS to the subgiant phase with a particular emphasis on the convective core and the convective superficial layers.
Maceroni, C., Montalban, J., Noels, A.
core   +1 more source

CFD modeling and sensitivity‐guided design of silicon filament CVD reactors

AIChE Journal, EarlyView.
Abstract Filament‐based chemical vapor deposition (CVD) for silicon (Si) coatings is often treated as an adaptation of planar deposition. But this overlooks fundamental shifts in transport phenomena and reaction kinetics. In filament CVD, the filament acts as a substrate, heat source, and flow disruptor simultaneously. In this work, we ask: What really
G. P. Gakis, G. Loachamín‐Suntaxi, I. G. Aviziotis, E. D. Koronaki, P. P. Filippatos, G. Chatzigiannakis, S. P. A. Bordas, D. Davazoglou, A. G. Boudouvis   +8 more
wiley   +1 more source

Magnetic fields in non-convective regions of stars

, 2017
We review the current state of knowledge of magnetic fields inside stars, concentrating on recent developments concerning magnetic fields in stably stratified (zones of) stars, leaving out convective dynamo theories and observations of convective ...
Braithwaite, J., Spruit, H. C.
core   +1 more source

Hydrodynamical Survey of First Overtone Cepheids [PDF]

, 2000
A hydrodynamical survey of the pulsational properties of first overtone Galactic Cepheids is presented. The goal of this study is to reproduce their observed light- and radial velocity curves.
Aikawa T., Antonello E., Antonello E., Antonello E., Beaulieu J. P., Buchler J. R., Dorfi E. A., Feuchtinger M. U., Feuchtinger M. U., Feuchtinger M. U., Feuchtinger M. U., Gehmeyr M., Hertzsprung E., J. Robert Buchler, Kienzle F., Kuhfuss R., Michael Feuchtinger, Poretti E., Schaller G., Udalski A., Wuchterl G., Yecko P. A., Zoltan Kollath   +22 more
core   +2 more sources

Evolution of Physical Intelligence Across Scales

Advanced Intelligent Discovery, EarlyView.
By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu, Tianyun Huang, Aming Li, Pengyu Lv, Tingting Qin, Wenhui Chen, Hui Wei, Huiling Duan   +7 more
wiley   +1 more source

Optimized Selenium‐Doped Nanocomposites for Enhanced Polymer Gel Performance in Permeability Reduction

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Excessive water production in mature oil fields necessitates robust shut‐off treatments, yet conventional polymer gels often fail under high‐temperature and high‐salinity conditions. This study aims to enhance gel thermal stability and mechanical strength by incorporating selenium‐doped Ag/AgO–ZnO nanocomposites synthesized via a novel green ...
Fadhil F. Sead, Farag M. A. Altalbawy, M. Sudhakara Reddy, Badri Narayan Sahu, Sridharan Sundharam, Sanjeev Kumar, Atreyi Pramanik, Aseel Smerat, Fatimah Pashtun   +8 more
wiley   +1 more source

Angular Momentum Transport in Stellar Interiors [PDF]

, 2018
Stars lose a significant amount of angular momentum between birth and death, implying that efficient processes transporting it from the core to the surface are active.
Aerts, Conny, Mathis, Stephane, Rogers, Tamara   +2 more
core   +3 more sources

Impact of Cattaneo–Christov Heat and Mass Flux on MHD Hybrid Nanofluid Flow Over an Extending Surface With Convective and Mass Flux Effects

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study investigates the flow of a magnetized hybrid nanofluid over a permeable stretching surface. The mass and thermal transport within the system is regulated using the Cattaneo–Christov flux theory. The fluid is additionally subjected to thermophoresis, chemical reaction, Brownian motion, and activation energy effects.
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed   +6 more
wiley   +1 more source

Equilibrium Moisture and Drying Kinetics Modelling of Macroalgae Species Ulva ohnoi and Oedogonium intermedium

Clean Technologies, 2020
Algae-based products have applications in the food and pharmaceutical industries, bioremediation of waste streams and biofuel production. Drying has been recognised to constitute the largest energy cost in algae processing, yet there is limited data or ...
Craig Walker, Andrew Cole, Elsa Antunes, Madoc Sheehan   +3 more
doaj   +1 more source

Multiple Equilibria in a Single-Column Model of the Tropical Atmosphere

, 2007
A single-column model run under the weak temperature gradient approximation, a parameterization of large-scale dynamics appropriate for the tropical atmosphere, is shown to have multiple stable equilibria.
A. H. Sobel, Bergman, Biasutti, Bretherton, Derbyshire, G. Bellon, J. Bacmeister, Khouider, Kuang, Kuang, Mapes, Neelin, Neggers, Nilsson, Raymond, Raymond, Rennó, Sobel, Sobel, Wang, Zeng, Zhang   +21 more
core   +1 more source