Existence and Exponential Behavior for the Stochastic 2D Cahn–Hilliard–Oldroyd Model of Order One

2021 ◽  
Vol 24 (1) ◽  
Author(s):  
G. Deugoué ◽  
B. Jidjou Moghomye ◽  
T. Tachim Medjo
Keyword(s):  
Exponential Behavior ◽  
Oldroyd Model

An exploration and further study of an enhanced Oldroyd model

2017 ◽  
Vol 29 (5) ◽  
pp. 053103 ◽  
Author(s):  
R. Byron Bird ◽  
W. J. Drugan
Keyword(s):  
Oldroyd Model

The fully discrete fractional-step method for the Oldroyd model

2018 ◽  
Vol 129 ◽  
pp. 83-103 ◽  
Author(s):  
Tong Zhang ◽  
Yanxia Qian ◽  
JinYun Yuan
Keyword(s):  
Fractional Step ◽  
Step Method ◽  
Fractional Step Method ◽  
Oldroyd Model ◽  
Fully Discrete

Photoluminescence and Scintillation Properties of Pb2+ Based Quantum Dots in CsCI Host Crystal

1994 ◽  
Vol 348 ◽  
Author(s):  
M. Nikl ◽  
K. Nitsch ◽  
I. Dafinei ◽  
P. Lecoq ◽  
G.P. Pazzi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Steady State ◽  
Room Temperature ◽  
Emission Spectra ◽  
Emission Peak ◽  
Kinetic Properties ◽  
Host Crystal ◽  
Exponential Behavior ◽  
Decay Times ◽  
Single Exponential

ABSTRACTThe spectral and kinetic properties of photoluminescence of Pb2+ aggregated phase in CsC1 host, together with scintillation characteristics of CsCI:Pb crystals, are reported in the 10 - 300 K temperature range. Absorption, steady-state excitation and emission spectra of Pb2+ phase in CsCI host are similar to those of CsPbCl3 bulk crystal (emission peak at 419 nm at 10 K). The decay of the 421 nm luminescence of the Pb2+ phase in CsCl shows single exponential behavior with extremely short decay time of 40 ps at 421 nm and 10 K,which is considerably shorter than the decay times found in the decay of CsPbCl3 bulk emission (0.45, 2.8 and 12 ns at 418 nm and 10 K). In the scintillation decay of CsCI:Pb, two components with 0.95-1 ns and 2-3 ns decay times were found and no slower component is present at room temperature.

On the Kinetics Description of Below-Tg Structural Relaxation in Network Glass Formers

2013 ◽  
Vol 200 ◽  
pp. 162-167 ◽  
Author(s):  
Valentina Balitska ◽  
Roman Golovchak ◽  
Oleh Shpotyuk
Keyword(s):  
Structural Relaxation ◽  
Chalcogenide Glasses ◽  
Glassy Matrix ◽  
Physical Ageing ◽  
Exponential Behavior ◽  
First Order ◽  
First Order Kinetics ◽  
Network Glass ◽  
Arsenic Selenides

Phenomenological description of below-Tg structural relaxation known as long-term natural physical ageing in network glass formers exemplified by chalcogenide glasses of binary arsenic selenides was adequately developed within formalism of first-order kinetics. This kinetics was shown to obey a character stretched exponential behavior being treated as sequence of aligning-shrinkage stages throughout glassy matrix.

scholarly journals Cascade calculation with schematic interactions

2019 ◽  
Vol 28 (08) ◽  
pp. 1950062 ◽  
Author(s):  
Levering Wolfe ◽  
Larry Zamick
Keyword(s):  
Excited States ◽  
Ground State ◽  
Energy State ◽  
Weak Coupling Limit ◽  
Transition Strength ◽  
Exponential Behavior ◽  
Analytic Proof ◽  
Cascade Calculation ◽  
Average Transition ◽  
Transition Operators

In previous works we considered schematic Hamiltonians represented by simplified matrices. We defined two transition operators and calculated transition strengths from the ground state to all excited states. In many cases the strengths decreased nearly exponentially with the excitation energy. Now we do the reverse. We start with the highest energy state and calculate the cascade of transitions until the ground state is reached. On a log plot we show the average transition strength as a function of the number of energy intervals that were crossed. We give an analytic proof of exponential behavior for transition strength in the weak coupling limit for the [Formula: see text] transition operator.

Oldroyd Model for Compressible Fluids

2019 ◽  
Vol 239 (5) ◽  
pp. 582-607
Author(s):  
D. A. Zakora
Keyword(s):  
Compressible Fluids ◽  
Oldroyd Model
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