Results 81 to 90 of about 142,307 (303)

Cooling by Heating: Restoration of the Third Law of Thermodynamics

open access: yes, 2015
We have made a simple and natural modification of a recent quantum refrigerator model presented by Cleuren et al. in Phys. Rev, Lett.108, 120603 (2012).
Bergli, Joakim   +2 more
core   +1 more source

Staggered Fermion Thermodynamics using Anisotropic Lattices [PDF]

open access: yes, 2002
Numerical simulations of full QCD on anisotropic lattices provide a convenient way to study QCD thermodynamics with fixed physics scales and reduced lattice spacing errors.
Bernard   +4 more
core   +3 more sources

Actuating and Sensing Composites of Liquid Crystal Elastomers and Poly(ionic liquid)s

open access: yesAdvanced Functional Materials, EarlyView.
Ionic conductive, mechanically tough, flexible, and stretchable filaments of a composite material comprising a liquid crystal elastomer and a poly(ionic liquid) are produced through 3D printing, which exhibit large actuation strain under stimulation and electrical resistance variation in response to deformation or environmental condition changes. Their
Zeping Liu   +6 more
wiley   +1 more source

Theoretical Analysis of Solar-aided Coal-fired Power Generation System Based on Finite Time Thermodynamics

open access: yes发电技术, 2019
To reveal the influence of heat transfer and heat source temperature on system performance in finite time, and the theoretical basis of solar-aided coal-fired power generation system, the relationship between output power, efficiency and cycle parameters
Rongrong ZHAI, Hongtao LIU
doaj   +1 more source

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

open access: yesAdvanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco   +7 more
wiley   +1 more source

Exergetic optimisation of a four-temperature-level absorption heat pump based on finite-time thermodynamics

open access: yesInternational Journal of Sustainable Energy, 2022
A finite-time thermodynamics study and an exergetic optimisation for a four-temperature-level absorption heat pump have been performed. The maximum of the exergetic-performance coefficient (EPC) and the corresponding optimal ecological coefficient of ...
Brigitte Astrid Medjo Nouadje   +4 more
doaj   +1 more source

From coupled elementary units to the complexity of the glass transition

open access: yes, 2010
Supercooled liquids display fascinating properties upon cooling such as the emergence of dynamic length scales. Different models strongly vary with respect to the choice of the elementary subsystems (CRR) as well as their mutual coupling.
Heuer, A., Rehwald, C., Rubner, O.
core   +1 more source

Molecularly Engineered Highly Stable Memristors with Ultra‐Low Operational Voltage: Integrating Synthetic DNA with Quasi‐2D Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
Molecularly engineered memristors integrating Ag nanoparticle–embedded synthetic DNA with quasi‐2D halide perovskites enable ultra‐low‐operational voltage, forming‐free resistive switching, and record‐low power density. This synergistic integration of customized DNA and 2D OHP in bio‐hybrid architecture enhances charge transport, reduces variability ...
Kavya S. Keremane   +9 more
wiley   +1 more source

A Simple Thermodynamic Model of the Internal Convective Zone of the Earth

open access: yesEntropy, 2018
As it is well known both atmospheric and mantle convection are very complex phenomena. The dynamical description of these processes is a very difficult task involving complicated 2-D or 3-D mathematical models.
Karen Arango-Reyes   +3 more
doaj   +1 more source

Minimal universal quantum heat machine

open access: yes, 2013
In traditional thermodynamics the Carnot cycle yields the ideal performance bound of heat engines and refrigerators. We propose and analyze a minimal model of a heat machine that can play a similar role in quantum regimes. The minimal model consists of a
Alicki, Robert   +2 more
core   +1 more source

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