Results 31 to 40 of about 72,811 (257)

Convective quenching of stellar pulsations [PDF]

, 2011
Context: we study the convection-pulsation coupling that occurs in cold Cepheids close to the red edge of the classical instability strip. In these stars, the surface convective zone is supposed to stabilise the radial oscillations excited by the kappa ...
Arnoldi, B. Dintrans, Baker, Bogdan, Bono, Brandenburg, Buchler, Buchler, Böhm-Vitense, Chan, Chan, Chapman, Dintrans, Dintrans, Dintrans, Dupret, Gastine, Gastine, Gautschy, Gough, Gough, Grigahcène, Grisouard, Hazewinkel, Hurlburt, Klapp, Kolláth, Krogdahl, Kuhfuß, Lynden-Bell, Simon, Stellingwerf, T. Gastine, Takeuti, Unno, Valdettaro, Vitense, Wuchterl, Xiong, Yecko, Zhevakin   +40 more
core   +1 more source

Mean flow and spiral defect chaos in Rayleigh-Benard convection [PDF]

, 2002
We describe a numerical procedure to construct a modified velocity field that does not have any mean flow. Using this procedure, we present two results.
A. Pocheau, A. Pocheau, A.C. Newell, A.C. Newell, A.C. Newell, D.A. Egolf, D.A. Egolf, E. Bodenschatz, E.D. Siggia, F.H. Busse, H. S. Greenside, H. Xi, H. Xi, H. Xi, H.S. Greenside, J. Liu, J. Liu, J. Swift, J. Wesfreid, J.C. Buell, J.P. Gollub, K.-H. Chiam, L.S. Tsimring, M. Assenheimer, M. Assenheimer, M. C. Cross, M. R. Paul, M.C. Cross, M.C. Cross, M.C. Cross, M.C. Cross, M.C. Cross, M.C. Cross, M.C. Cross, M.R. Paul, M.R. Paul, P.C. Hohenberg, P.F. Fischer, R. Schmitz, R.E. Ecke, R.V. Cakmur, S.W. Morris, S.W. Morris, V. Croquette, W. Decker, W. Pesch, X. Li, Y. Hu, Y. Hu   +48 more
core   +2 more sources

NUMERICAL SIMULATION OF THE HEAT TREATMENT PROCESS FOR 100Cr6 STEEL

Acta Metallurgica Slovaca, 2017
The success of quenching process depended heavily on the suitable choice of a quenching media. In this work, a numerical simulation of the process of quenching C-ring sample of 100Cr6 steel was discussed.
Xuan Thi Tran, Toai Dinh Vu, Khanh Quoc Dang   +2 more
doaj   +1 more source

Intravital quantification reveals dynamic calcium concentration changes across B cell differentiation stages

eLife, 2021
Calcium is a universal second messenger present in all eukaryotic cells. The mobilization and storage of Ca2+ ions drives a number of signaling-related processes, stress–responses, or metabolic changes, all of which are relevant for the development of ...
Carolin Ulbricht, Ruth Leben, Asylkhan Rakhymzhan, Frank Kirchhoff, Lars Nitschke, Helena Radbruch, Raluca A Niesner, Anja E Hauser   +7 more
doaj   +1 more source

Peculiarities of High-Energy Induction Heating during Surface Hardening in Hybrid Processing Conditions

Metals, 2021
This paper presents the results obtained when combining mechanical and surface-thermal operations, using the same process equipment. The paper also demonstrates the possibility of implementing high-energy heating with high-frequency currents, and ...
Vadim Y. Skeeba, Vladimir V. Ivancivsky, Nikita V. Martyushev   +2 more
doaj   +1 more source

Numerical solution of degenerate stochastic Kawarada equations via a semi-discretized approach

, 2018
The numerical solution of a highly nonlinear two-dimensional degenerate stochastic Kawarada equation is investigated. A semi-discretized approximation in space is comprised on arbitrary nonuniform grids.
Padgett, Joshua L, Sheng, Qin
core   +1 more source

Continuity of the quenching time in a semilinear heat equation with Neumann boundary condition

Journal of Numerical Analysis and Approximation Theory, 2010
This paper concerns the study of a semilinear parabolic equation subject to Neumann boundary conditions and positive initial datum. Under some assumptions, we show that the solution of the above problem quenches in a finite time and estimate its ...
Firmin K. N'gohisse, Théodore K. Boni
doaj   +2 more sources

Induction Heating of Gear Wheels in Consecutive Contour Hardening Process

Energies, 2021
Induction contour hardening of gear wheels belongs to effective heat treatment technologies especially recommended for high-tech applications in machinery, automotive and aerospace industries.
Jerzy Barglik, Adrian Smagór, Albert Smalcerz, Debela Geneti Desisa   +3 more
doaj   +1 more source

Thermal analysis using induction and concentrated solar radiation for the heating of metals

Results in Engineering, 2022
It is described the thermal analysis of a cylindrical workpiece involving the coupling of two heat sources. Induction heating was applied, which generated Eddy currents that circulated through the workpiece and heated the material surface.
Armando Rojas-Morín, Yolanda Flores-Salgado, Omar Alvarez-Brito, Alejandro Jaramillo-Mora, Arturo Barba-Pingarrón   +4 more
doaj   +1 more source

A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: II. Formation of Red Ellipticals

, 2007
(Abridged) We develop and test a model for the cosmological role of mergers in the formation and quenching of red, early-type galaxies. Making the ansatz that star formation is quenched after a gas-rich, spheroid-forming major merger, we demonstrate that
Athanassoula E., Bower R. G., Cattaneo A., Combes F., Cooper M. C., Dekel A., Dušan Kereš, Hopkins P. F., Krivitsky D. S., Lars Hernquist, Pfenniger D., Philip F. Hopkins, Pipino A., Rees M. J., Soltan A., Thomas J. Cox, Weinmann S. M., White S. D. M.   +17 more
core   +1 more source