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We study a Bose-condensed gas at finite temperature, in which the particles of the condensate and of the thermal cloud are constrained to move in a plane under radial harmonic confinement and interact via strictly two-dimensional…

Soft Condensed Matter · Physics 2009-11-10 K. K. Rajagopal , P. Vignolo , M. P. Tosi

In this work, we study quantum heat transport in a single trapped ion, driven by laser excitation and coupled to thermal reservoirs operating at different temperatures. Our focus lies in understanding how different laser coupling scenarios…

Quantum Physics · Physics 2025-03-03 T. Tassis , F. Brito , F. L. Semião

Layered systems shows anisotropic transport properties. The interlayer conductivity show a general temperature dependence for a wide class of materials. This can be understood if conduction occurs in two different channels activated at…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Urban Lundin , Ross H. McKenzie

An inverse problem for a stationary heat transfer process is studied for a totally isolated bar on its lateral surface, made up of two consecutive sections of different, isotropic and homogeneous materials, perfectly assembly, where one of…

Analysis of PDEs · Mathematics 2021-05-28 Guillermo Federico Umbricht , Diana Rubio , Domingo Alberto Tarzia

The convection plays a very important role in heat transfer when MEMS work under air environment. However, traditional measurements of convection heat transfer coefficient require the knowledge of thermal conductivity, which makes…

Applied Physics · Physics 2019-07-26 Xiaoman Wang , Rulei Guo , Qinping Jian , Guilong Peng , Yanan Yue , Nuo Yang

Polymer nanofibers with high thermal conductivities and outstanding thermal stabilities are highly desirable in heat transfer-critical applications such as thermal management, heat exchangers and energy storage. In this work, we unlock the…

Chemical Physics · Physics 2014-09-12 Teng Zhang , Xufei Wu , Tengfei Luo

This study examines the transverse and longitudinal properties of hard disks confined in narrow channels. Employing an exact mapping of the system onto a one-dimensional polydisperse, nonadditive mixture of hard rods with equal chemical…

Soft Condensed Matter · Physics 2024-08-13 Ana M. Montero , Andrés Santos

Heat conduction in a random packing of hard spheres is studied by nonequilibrium molecular dynamics simulation. We find a hard-sphere random packing shows higher thermal conductivity than a crystalline packing with same packing fraction.…

Statistical Mechanics · Physics 2010-12-15 Shigenori Matsumoto , Tomoaki Nogawa , Takashi Shimada , Nobuyasu Ito

Thermal conductance of a homogeneous 1D nonlinear lattice system with neareast neighbor interactions has recently been computationally studied in detail by Li et al [Eur. Phys. J. B {\bf 88}, 182 (2015)], where its power-law dependence on…

Statistical Mechanics · Physics 2017-06-07 Yunyun Li , Nianbei Li , Ugur Tirnakli , Baowen Li , Constantino Tsallis

Rubble piles are a common feature of solar system bodies. They are composed of monolithic elements of ice or rock bound by gravity. Voids occupy a significant fraction of the volume of a rubble pile. They can exist up to pressure $P\approx…

Earth and Planetary Astrophysics · Physics 2015-10-20 Jing Luan , Peter Goldreich

We investigate the thermal robustness of traveling polariton condensates. We create remote condensates that have never been in contact, and study their interference in momentum space, when they travel with the same velocity, by means of…

Mesoscale and Nanoscale Physics · Physics 2020-04-23 E. Rozas , M. D. Martín , C. Tejedor , L. Viña , G. Deligeorgis , Z. Hatzopoulos , P. G. Savvidis

We use a magnetothermal resistance method to measure the lattice thermal conductivity of a single crystal of Bi$_2$Te$_3$ from 5 to 60 K. We apply a large transverse magnetic field to suppress the electronic thermal conduction while…

Materials Science · Physics 2017-04-12 Mengliang Yao , Stephen Wilson , Mona Zebarjadi , Cyril Opeil

The photoacoustic method with piezoelectric detection for the simultaneous evaluation of the thermophysical properties is proposed. The approach is based on the settling of an additional heat sink for redistribution of heat fluxes deposited…

Mesoscale and Nanoscale Physics · Physics 2020-12-03 K. Dubyk , T. Nychyporuk , V. Lysenko , K. Termentzidis , G. Castanet , F. Lemoine , D. Lacroix , Mykola Isaiev

Convective drying of biomass is an important technological solution required to increase the quality of biomass for efficient biomass conversion in heat and power generation sector. We propose a fully predictive method based on iteratively…

Applied Physics · Physics 2022-05-23 Gediminas Skarbalius , Algis Dziugys , Edgaras Misiulis , Robertas Navakas

Within the framework of building energy assessment, this article proposes to use a derivative based sensitivity analysis of heat transfer models in a building envelope. Two, global and local, estimators are obtained at low computational…

Computational Engineering, Finance, and Science · Computer Science 2021-11-18 Ainagul Jumabekova , Julien Berger , Aurélie Foucquier

Effects of substrate temperature, substrate wettability and particles concentration are experimentally investigated for evaporation of a sessile water droplet containing colloidal particles. Time-varying droplet shapes and temperature of…

Fluid Dynamics · Physics 2016-10-21 Nagesh D. Patil , Prathamesh G. Bange , Rajneesh Bhardwaj , Atul Sharma

In this Colloquium recent advances in the field of quantum heat transport are reviewed. This topic has been investigated theoretically for several decades, but only during the past twenty years have experiments on various mesoscopic systems…

Mesoscale and Nanoscale Physics · Physics 2021-10-20 Jukka P. Pekola , Bayan Karimi

We collected literature data of thermal conductivity experimentally measured in ethylene glycol-based nanofluids and investigated the influence of concentration, temperature and nanoparticle size. We implemented statistical linear…

Soft Condensed Matter · Physics 2021-07-30 Julia Tielke , Marc Avila

The search for new superconducting materials approaching room temperature benefits from having a variety of testing methodologies to confirm and characterize the presence of superconductivity. Often the first signatures of new…

Superconductivity · Physics 2019-07-02 Charles L. Dean , Milind N. Kunchur

PbTe is a leading thermoelectric material at intermediate temperatures, largely thanks to its low lattice thermal conductivity. However, its efficiency is too low to compete with other forms of power generation. This efficiency can be…

Mesoscale and Nanoscale Physics · Physics 2021-01-27 Javier F. Troncoso , Piotr Chudzinski , Tchavdar N. Todorov , Pablo Aguado-Puente , Myrta Grüning , Jorge J. Kohanoff