Time-dependent photon heat transport through a mesoscopic Josephson device

2017 ◽  
Vol 377 ◽  
pp. 180-196 ◽  
Author(s):  
Wen-Ting Lu ◽  
Hong-Kang Zhao
Keyword(s):  
Heat Transport ◽  
Time Dependent ◽  
Josephson Device

Characteristics of melting heat transport of blood with time-dependent cross-nanofluid model using Keller–Box and BVP4C method

2021 ◽  
Author(s):  
Assad Ayub ◽  
Zulqurnain Sabir ◽  
Gilder Cieza Altamirano ◽  
R. Sadat ◽  
Mohamed R. Ali
Keyword(s):  
Heat Transport ◽  
Time Dependent ◽  
Melting Heat

scholarly journals Entropy production and heat transport in harmonic chains under time-dependent periodic drivings

2020 ◽  
Vol 101 (1) ◽  
Author(s):  
Bruno A. N. Akasaki ◽  
Mário J. de Oliveira ◽  
C. E. Fiore
Keyword(s):  
Entropy Production ◽  
Heat Transport ◽  
Time Dependent

scholarly journals Heat Transport in a Spin-Boson Model at Low Temperatures: A Multilayer Multiconfiguration Time-Dependent Hartree Study

Entropy ◽  
2020 ◽  
Vol 22 (10) ◽  
pp. 1099
Author(s):  
Chou-Hsun Yang ◽  
Haobin Wang
Keyword(s):  
Heat Transport ◽  
Thermal Flux ◽  
Quantum Dynamic ◽  
Time Dependent ◽  
Physical Parameters ◽  
Theory Approach ◽  
Dynamic Simulations ◽  
Redfield Theory ◽  
Temperature Heat ◽  
Boson Model

Extending our previous work, quantum dynamic simulations are performed to study low temperature heat transport in a spin-boson model where a two-level subsystem is coupled to two independent harmonic baths. Multilayer multiconfiguration time-dependent Hartree theory is used to numerically evaluate the thermal flux, for which the bath is represented by hundreds to thousands of modes. The simulation results are compared with the approximate Redfield theory approach, and the physics is analyzed versus different physical parameters.

Standing and travelling oscillatory blob convection

1995 ◽  
Vol 297 ◽  
pp. 255-273 ◽  
Author(s):  
R. M. Clever ◽  
F. H. Busse
Keyword(s):  
Rayleigh Number ◽  
Heat Transport ◽  
Three Dimensional ◽  
Horizontal Layer ◽  
Time Dependent ◽  
Stable Form ◽  
Two Dimensional ◽  
Mean Flow ◽  
Numerical Computations

Results of numerical computations are presented of time-dependent three-dimensional convection flows in a horizontal layer heated from below which evolve from the oscillatory blob instability of steady two-dimensional rolls. It is shown that the heat transport is typically increased in the transition to blob convection. Oscillatory blob convection exists in the forms of standing or travelling blob convection. The latter type of solution represents the stable form bifurcating supercritically at the Rayleigh number RII for the onset of the oscillatory blob instability. In contrast to standing blob convection travelling blob convection exhibits a mean flow.

Drastic and Fast Changes in Stress/Strain of Photothermally Actuated VO2-Coated Microcantilevers

2011 ◽  
Author(s):  
Rafmag Cabrera ◽  
Emmanuelle Merced ◽  
Noraica Da´vila ◽  
Nelson Sepu´lveda ◽  
Fe´lix E. Ferna´ndez
Keyword(s):  
Heat Transport ◽  
Laser Light ◽  
Performance Degradation ◽  
Time Dependent ◽  
Main Mechanism ◽  
Stress Strain ◽  
Light Pulses ◽  
Heating And Cooling ◽  
Micro Cantilever ◽  
Time Required

The time-dependent response of a 300 μm-long VO2-coated silicon micro-cantilevers photothermally driven over the film’s insulator-to-metal transition (IMT) by laser light pulses was studied and tip displacements of ∼ 80 μm were found for driving frequencies over 100 Hz, while displacements of ∼ 10 μm were found for frequencies close to 1.2 kHz, with no performance degradation after millions of pulses. Additionally, the deflection of a 250 μm-long VO2-coated silicon micro-cantilever as a function of temperature heated through a Peltier heater was studied. The main mechanism limiting amplitude was found to be the time required for heat transport during heating and cooling. Hence, wireless actuation in this manner is expected to be even faster for smaller cantilevers.

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