Theoretical Modeling of Bubbling Regimes in Bubble Formation with Bubble–Bubble and Bubble–Wall Interactions

2008 ◽  
Vol 41 (6) ◽  
pp. 453-459
Author(s):  
Zongyuan Xiao ◽  
Reginald B. H. Tan
Keyword(s):  
Bubble Formation ◽  
Theoretical Modeling ◽  
Bubble Wall ◽  
Wall Interactions

Bubble-wall interactions in a vertical gas–liquid flow: Bouncing, sliding and bubble deformations

2007 ◽  
Vol 62 (6) ◽  
pp. 1591-1605 ◽  
Author(s):  
Alexander Zaruba ◽  
Dirk Lucas ◽  
Horst-Michael Prasser ◽  
Thomas Höhne
Keyword(s):  
Liquid Flow ◽  
Bubble Wall ◽  
Gas Liquid Flow ◽  
Wall Interactions

A model for bubble-bubble and bubble-wall interaction in bubble formation

AIChE Journal ◽  
2005 ◽  
Vol 52 (1) ◽  
pp. 86-98 ◽  
Author(s):  
Zongyuan Xiao ◽  
Reginald B. H. Tan
Keyword(s):  
Bubble Formation ◽  
Bubble Wall ◽  
Wall Interaction

scholarly journals BUBBLE WALL DYNAMICS, GENERALIZED YUKAWA COUPLINGS AND ADEQUATE ELECTROWEAK BARYOGENESIS IN TWO-HIGGS-DOUBLET MODEL

1996 ◽  
Vol 11 (31) ◽  
pp. 2481-2487 ◽  
Author(s):  
SUSMITA BHOWMIK DUARI ◽  
U.A. YAJNIK
Keyword(s):  
Particle Physics ◽  
Chemical Potential ◽  
Diffusion Processes ◽  
Bubble Formation ◽  
Higgs Doublet ◽  
Bubble Wall ◽  
Electroweak Scale ◽  
Yukawa Couplings ◽  
Doublet Model ◽  
Two Higgs Doublet Model

Baryogenesis at the electroweak scale depends on bubble wall dynamics and particle physics. We trace the dynamics of the relative phase during bubble formation in two-Higgs-doublet model (2HDM) and compute its contribution to the mechanism proposed by McLerran-Shaposhnikov-Turok-Voloshin. This enhances the intrinsic contribution of the diagram and would mean overall enhancement if diffusion processes are taken into account. We also show that in 2HDM with less stringent constraints on Yukawa couplings than those imposed by natural flavor conservation, there are additional diagrams contributing to the effective chemical potential. These two effects can combine with several others to produce adequate asymmetry at the electroweak scale.

Direct observations of radiation-enhanced transformations in glass

1983 ◽  
Vol 41 ◽  
pp. 354-355
Author(s):  
J. F. DeNatale ◽  
D. G. Howitt
Keyword(s):  
Glass Matrix ◽  
Diffusion Mechanism ◽  
Bubble Formation ◽  
Silicate Glasses ◽  
Phase Decomposition ◽  
Direct Observations ◽  
Thin Foils ◽  
Oxygen Bubble ◽  
Electron Energy Loss ◽  
Kinetics Of

The electron irradiation of silicate glasses containing metal cations produces various types of phase separation and decomposition which includes oxygen bubble formation at intermediate temperatures figure I. The kinetics of bubble formation are too rapid to be accounted for by oxygen diffusion but the behavior is consistent with a cation diffusion mechanism if the amount of oxygen in the bubble is not significantly different from that in the same volume of silicate glass. The formation of oxygen bubbles is often accompanied by precipitation of crystalline phases and/or amorphous phase decomposition in the regions between the bubbles and the detection of differences in oxygen concentration between the bubble and matrix by electron energy loss spectroscopy cannot be discerned (figure 2) even when the bubble occupies the majority of the foil depth.The oxygen bubbles are stable, even in the thin foils, months after irradiation and if van der Waals behavior of the interior gas is assumed an oxygen pressure of about 4000 atmospheres must be sustained for a 100 bubble if the surface tension with the glass matrix is to balance against it at intermediate temperatures.

The role of ligands in electron transport in nanocrystal solids

Nanoscale ◽  
2020 ◽  
Vol 12 (45) ◽  
pp. 23028-23035
Author(s):  
Artem R. Khabibullin ◽  
Alexander L. Efros ◽  
Steven C. Erwin
Keyword(s):  
Electron Transport ◽  
Theoretical Modeling

Theoretical modeling of wavefunction overlap in nanocrystal solids elucidates the important role played by ligands in electron transport.

Hysteresis in spectral state transitions – a challenge for theoretical modeling

2005 ◽  
Vol 432 (1) ◽  
pp. 181-187 ◽  
Author(s):  
E. Meyer-Hofmeister ◽  
B. F. Liu ◽  
F. Meyer
Keyword(s):  
Theoretical Modeling ◽  
State Transitions ◽  
Spectral State

Epistemological Status of Models and Thought Experiments in Economics

2015 ◽  
pp. 123-140 ◽  
Author(s):  
O. Koshovets ◽  
T. Varkhotov
Keyword(s):  
Natural Science ◽  
Thought Experiment ◽  
Thought Experiments ◽  
Theoretical Modeling ◽  
Epistemological Status ◽  
Epistemological Analysis ◽  
Field Of Inquiry

The paper considers the analogy of theoretical modeling and thought experiment in economics. The authors provide historical and epistemological analysis of thought experiments and their relations to the material experiments in natural science. They conclude that thought experiments as instruments are used both in physics and in economics, but in radically different ways. In the natural science, a thought experiment is tightly connected to the material experimentation, while in economics it is used in isolation. Material experiments serve as a means to demonstrate the reality, while thought experiments cannot be a full-fledged instrument of studying the reality. Rather, they constitute the instrument of structuring the field of inquiry.

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