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109 Results Found

  • Article
  • Open Access
1 Citations
2,416 Views
18 Pages

Modern microfabrication techniques have led to a growing interest in micropillars and pillar–pore structures. Therefore, in this paper a study of the liquid entry pressure of a hydrophobic pillar–pore structure and the corresponding liqui...

  • Article
  • Open Access
1,472 Views
11 Pages

Experimental and Theoretical Study of the Reaction of F2 with Thiirane

  • Yuri Bedjanian,
  • Antoine Roose,
  • Valérie Vallet and
  • Manolis N. Romanias

31 July 2024

The kinetics of the F2 reaction with thiirane (C2H4S) was studied for the first time in a flow reactor combined with mass spectrometry at a total helium pressure of 2 Torr and in the temperature range of 220 to 800 K. The rate constant of the title r...

  • Article
  • Open Access
2 Citations
4,543 Views
21 Pages

3 November 2023

Experimental and theoretical results about entropy limits for macroscopic and single-particle systems are reviewed. All experiments confirm the minimum system entropy S⩾kln2. We clarify in which cases it is possible to speak about a minimum sy...

  • Article
  • Open Access
1,135 Views
32 Pages

27 October 2025

In this investigation, we explore previously unknown relations between natural constants by taking the following steps: (1) We discard Dirac’s constant ℏ from the universal man-made constants of physics, which we redefine in terms of Plan...

  • Article
  • Open Access
704 Views
26 Pages

12 October 2025

The driving force behind protein translocation across the cell membrane is not yet fully understood. In bacteria, there is an electrochemical potential across the cell membrane, which can interact with charged residues in the translocation substrate....

  • Article
  • Open Access
8 Citations
3,139 Views
10 Pages

29 December 2020

Ions play significant roles in biological processes—they may specifically bind to a protein site or bind non-specifically on its surface. Although the role of specifically bound ions ranges from actively providing structural compactness via coo...

  • Article
  • Open Access
3 Citations
6,641 Views
8 Pages

Boltzmann-Based Empirical Model to Calculate Volume Loss during Spirit Ageing

  • Noemí del Toro del Toro,
  • Fredy Fong Casas,
  • Julio Ayan Rial,
  • Maria Caridad Portuondo González,
  • Harold Crespo Sariol,
  • José Navarro Campa,
  • Jan Yperman,
  • Dries Vandamme and
  • Robert Carleer

10 October 2019

The Boltzmann equation is applied to fit data of volume loss for evaporation (in %) during spirit ageing in northern white oak (Quercus Alba) standard barrels of 205 L (+/− 10 L) using a temperature and humidity controlled cellar. The Boltzmann...

  • Article
  • Open Access
7 Citations
6,961 Views
11 Pages

Schroedinger vs. Navier–Stokes

  • P. Fernández de Córdoba,
  • J. M. Isidro and
  • J. Vázquez Molina

19 January 2016

Quantum mechanics has been argued to be a coarse-graining of some underlying deterministic theory. Here we support this view by establishing a map between certain solutions of the Schroedinger equation, and the corresponding solutions of the irrotati...

  • Proceeding Paper
  • Open Access
1,644 Views
5 Pages

Boltzmann Entropy, the Holographic Bound and Newtonian Cosmology

  • Pedro Fernández De Córdoba and
  • Jose Maria Isidro San Juan

21 November 2017

The holographic principle sets an upper bound on the total (Boltzmann) entropy content of the Universe at around 10 123 k B ( k B being Boltzmann’s constant). In this work we point out the existence of a remarkable duality between...

  • Article
  • Open Access
1 Citations
2,551 Views
15 Pages

A New Lattice Boltzmann Scheme for Photonic Bandgap and Defect Mode Simulation in One-Dimensional Plasma Photonic Crystals

  • Huifang Ma,
  • Bin Wu,
  • Liping Song,
  • Hao Ren,
  • Wanshun Jiang,
  • Wenyue Guo and
  • Mingming Tang

A novel lattice Boltzmann method (LBM) with a pseudo-equilibrium potential is proposed for electromagnetic wave propagation in one-dimensional (1D) plasma photonic crystals. The final form of the LBM incorporates the dispersive effect of plasma media...

  • Article
  • Open Access
14 Citations
4,757 Views
17 Pages

17 December 2016

Measured by harmonic tests, the viscoelastic properties of Chinese fir during moisture sorption processes were examined under three relative humidity (RH) modes: RHramp, RHisohume, and RHstep. The stiffness decreased and damping increased as a functi...

  • Article
  • Open Access
4 Citations
4,409 Views
44 Pages

31 May 2019

The inconsistency between the time-reversible Liouville equation and time-irreversible Boltzmann equation has been pointed out by Loschmidt. To avoid Loschmidt’s objection, here we propose a new dynamical system to model the motion of atoms of gas, w...

  • Article
  • Open Access
19 Citations
8,329 Views
24 Pages

6 June 2014

The basic microsopic physical laws are time reversible. In contrast, the second law of thermodynamics, which is a macroscopic physical representation of the world, is able to describe irreversible processes in an isolated system through the change of...

  • Article
  • Open Access
6 Citations
3,480 Views
7 Pages

3 April 2018

We elaborate on existing notions of contact geometry and Poisson geometry as applied to the classical ideal gas. Specifically, we observe that it is possible to describe its dynamics using a 3-dimensional contact submanifold of the standard 5-dimensi...

  • Article
  • Open Access
10 Citations
3,714 Views
13 Pages

14 February 2021

Poisson–Boltzmann theory provides an established framework to calculate properties and free energies of an electric double layer, especially for simple geometries and interfaces that carry continuous charge densities. At sufficiently small length sca...

  • Article
  • Open Access
18 Citations
6,225 Views
6 Pages

25 November 2019

The Landauer principle asserts that “the information is physical”. In its strict meaning, Landauer’s principle states that there is a minimum possible amount of energy required to erase one bit of information, known as the Landauer...

  • Article
  • Open Access
2 Citations
5,666 Views
20 Pages

11 November 2013

In phenomenological thermodynamics, the canonical coordinates of a physical system split in pairs, with each pair consisting of an extensive quantity and an intensive one. In the present paper, the quasithermodynamic fluctuation theory of a model sys...

  • Proceeding Paper
  • Open Access
2,019 Views
11 Pages

Evaluation of the chosen mathematical model of a physical system (phenomena) is considered within the framework of thermodynamic theory and Mark Burgin’s general theory of information. The finiteness of the model cased by the limited number of chosen...

  • Article
  • Open Access
11 Citations
3,457 Views
10 Pages

We study the thermal conductivity of monolayer, bilayer, and bulk titanium trisulphide (TiS 3 ) by means of an iterative solution of the Boltzmann transport equation based on ab-initio force constants. Our results show that the thermal conduct...

  • Feature Paper
  • Article
  • Open Access
40 Citations
6,354 Views
21 Pages

17 August 2019

This paper presents the entropic damage indicators for metallic material fatigue processes obtained from three associated energy dissipation sources. Since its inception, reliability engineering has employed statistical and probabilistic models to as...

  • Article
  • Open Access
3,157 Views
10 Pages

Confined Quantum Hard Spheres

  • Sergio Contreras and
  • Alejandro Gil-Villegas

18 June 2021

We present computer simulation and theoretical results for a system of N Quantum Hard Spheres (QHS) particles of diameter σ and mass m at temperature T, confined between parallel hard walls separated by a distance Hσ, within the range 1≤H≤∞. Semiclas...

  • Review
  • Open Access
6 Citations
3,989 Views
13 Pages

Polarization Switching in 2D Nanoscale Ferroelectrics: Computer Simulation and Experimental Data Analysis

  • Ekaterina Paramonova,
  • Vladimir Bystrov,
  • Xiangjian Meng,
  • Hong Shen,
  • Jianlu Wang and
  • Vladimir Fridkin

15 September 2020

The polarization switching kinetics of nanosized ferroelectric crystals and the transition between homogeneous and domain switching in nanoscale ferroelectric films are considered. Homogeneous switching according to the Ginzburg-Landau-Devonshire (LG...

  • Editorial
  • Open Access
35 Citations
7,304 Views
6 Pages

20 September 2019

The Landauer principle quantifies the thermodynamic cost of the recording/erasure of one bit of information, as it was stated by its author: “information is physical” and it has an energy equivalent. In its narrow sense, the Landauer prin...

  • Article
  • Open Access
4 Citations
9,208 Views
19 Pages

8 October 2008

The goal in this paper is to show how many high-frequency electromagnetic metrology areas can be understood and formulated in terms of entropy evolution, production, and fluctuations. This may be important in nanotechnology where an understanding of...

  • Article
  • Open Access
4 Citations
4,265 Views
8 Pages

On the Holographic Bound in Newtonian Cosmology

  • José M. Isidro and
  • Pedro Fernández de Córdoba

25 January 2018

The holographic principle sets an upper bound on the total (Boltzmann) entropy content of the Universe at around 10 123 k B ( k B being Boltzmann’s constant). In this work we point out the existence of a remarkable duality between...

  • Article
  • Open Access
8 Citations
2,423 Views
26 Pages

Stochastic and Self-Organisation Patterns in a 17-Year PM10 Time Series in Athens, Greece

  • Dimitrios Nikolopoulos,
  • Aftab Alam,
  • Ermioni Petraki,
  • Michail Papoutsidakis,
  • Panayiotis Yannakopoulos and
  • Konstantinos P. Moustris

5 March 2021

This paper utilises statistical and entropy methods for the investigation of a 17-year PM10 time series recorded from five stations in Athens, Greece, in order to delineate existing stochastic and self-organisation trends. Stochastic patterns are ana...

  • Article
  • Open Access
1 Citations
2,454 Views
12 Pages

28 January 2023

Equations governing the evolution of a star involve multiple coupling constants. Thus, the time it spends as a main-sequence star can be expected to depend on whether or not such constants vary over the time scale of stellar evolution. When the star...

  • Article
  • Open Access
2 Citations
1,586 Views
14 Pages

Effect of Forced Convection on Magnesium Dendrite: Comparison between Constant and Altering Flow Fields

  • Lang Qin,
  • Ang Zhang,
  • Jinglian Du,
  • Zhihua Dong,
  • Feng Liu and
  • Bin Jiang

18 December 2023

Convection has a nonnegligible effect on the growth of the magnesium dendrite with six-primary-branch pattern. Most work, however, investigates the effect of the convection by simplifying the melt flow as a constant horizontal flow. In this work, fou...

  • Article
  • Open Access
30 Citations
10,575 Views
13 Pages

Beyond Landauer Erasure

  • Stephen M. Barnett and
  • Joan A. Vaccaro

13 November 2013

In thermodynamics, one considers thermal systems and the maximization of entropy subject to the conservation of energy. A consequence is Landauer’s erasure principle, which states that the erasure of one bit of information requires a minimum energy c...

  • Article
  • Open Access
11 Citations
9,606 Views
15 Pages

15 October 2013

In the past, the phase-space elementary cell of a non-quantized system was set equal to the third power of the Planck constant; in fact, it is not a necessary assumption. We discuss how the phase space volume, the number of states and the elementary-...

  • Feature Paper
  • Article
  • Open Access
3 Citations
2,646 Views
11 Pages

17 November 2022

Recent mathematical investigations have shown that under very general conditions, exponential mixing implies the Bernoulli property. As a concrete example of statistical mechanics that are exponentially mixing we consider the Bernoulli shift dynamics...

  • Article
  • Open Access
3 Citations
2,305 Views
16 Pages

Thermoelectric Properties of the Corbino Disk in Graphene

  • Adam Rycerz,
  • Katarzyna Rycerz and
  • Piotr Witkowski

8 June 2023

Thermopower and the Lorentz number for an edge-free (Corbino) graphene disk in the quantum Hall regime is calculated within the Landauer–Büttiker formalism. By varying the electrochemical potential, we find that amplitude of the Seebeck co...

  • Article
  • Open Access
7 Citations
3,255 Views
24 Pages

29 April 2023

To enable the lattice-Boltzmann method (LBM) to account for temporally constant but spatially varying thermophysical properties, modifications must be made. Recently, many methods have emerged that can account for conjugate heat transfer (CHT). Howev...

  • Article
  • Open Access
14 Citations
4,829 Views
12 Pages

Survival of Virus Particles in Water Droplets: Hydrophobic Forces and Landauer’s Principle

  • Edward Bormashenko,
  • Alexander A. Fedorets,
  • Leonid A. Dombrovsky and
  • Michael Nosonovsky

30 January 2021

Many small biological objects, such as viruses, survive in a water environment and cannot remain active in dry air without condensation of water vapor. From a physical point of view, these objects belong to the mesoscale, where small thermal fluctuat...

  • Article
  • Open Access
2 Citations
1,528 Views
13 Pages

16 June 2023

High-solid-water material is a kind of soft rock-like material with significant plastic deformation characteristics, and creep performance is its important material property. In order to study the effect of creep on the properties of high-solid-water...

  • Feature Paper
  • Article
  • Open Access
22 Citations
4,859 Views
11 Pages

9 November 2022

Mobility is a key parameter for SnO2, which is extensively studied as a practical transparent oxide n-type semiconductor. In experiments, the mobility of electrons in bulk SnO2 single crystals varies from 70 to 260 cm2V−1s−1 at room tempe...

  • Article
  • Open Access
3 Citations
4,509 Views
15 Pages

10 March 2020

We propose a method to derive the stationary size distributions of a system, and the degree distributions of networks, using maximisation of the Gibbs-Shannon entropy. We apply this to a preferential attachment-type algorithm for systems of constant...

  • Article
  • Open Access
19 Citations
6,019 Views
10 Pages

Dielectric Properties of Zinc Sulfide Concentrate during the Roasting at Microwave Frequencies

  • Guangjun He,
  • Shiwei Li,
  • Kun Yang,
  • Jian Liu,
  • Peng Liu,
  • Libo Zhang and
  • Jinhui Peng

21 February 2017

Microwave technology has a potential application in the extraction of zinc from sulphide ores, knowledge of the dielectric properties of these ores plays a major role in the microwave design and simulation for any process. The dielectric properties o...

  • Article
  • Open Access
5 Citations
6,516 Views
20 Pages

Polymorph Stability and Free Energy of Crystallization of Freely-Jointed Polymers of Hard Spheres

  • Miguel Herranz,
  • Javier Benito,
  • Katerina Foteinopoulou,
  • Nikos Ch. Karayiannis and
  • Manuel Laso

7 March 2023

The free energy of crystallization of monomeric hard spheres as well as their thermodynamically stable polymorph have been known for several decades. In this work, we present semianalytical calculations of the free energy of crystallization of freely...

  • Article
  • Open Access
2 Citations
9,809 Views
18 Pages

3 November 2009

Current research is probing transport on ever smaller scales. Modeling of the electromagnetic interaction with nanoparticles or small collections of dipoles and its associated energy transport and nonequilibrium characteristics requires a detailed un...

  • Article
  • Open Access
11 Citations
2,861 Views
13 Pages

3 September 2021

A numerical study of conjugate thermogravitational convection in a closed cavity with a local heater of square or triangular shape placed on a heat-conducting substrate using the double distribution function of the lattice Boltzmann method has been c...

  • Article
  • Open Access
1,321 Views
25 Pages

The often used analytical representation of the Maxwell–Boltzmann classical speed distribution function (F) for elastic, indivisible particles assumes an infinite limit for the speed. Consequently, volume and the number of particles (n) extend...

  • Feature Paper
  • Article
  • Open Access
6 Citations
3,241 Views
15 Pages

22 August 2020

Interactions between charges and dipoles inside a lipid membrane are partially screened. The screening arises both from the polarization of water and from the structure of the electric double layer formed by the salt ions outside the membrane. Assumi...

  • Article
  • Open Access
2 Citations
2,211 Views
13 Pages

23 August 2022

In this work, a unified lattice Boltzmann model is proposed for the fourth order partial differential equation with time-dependent variable coefficients, which has the form ut+α(t)(p1(u))x+β(t)(p2(u))xx+γ(t)(p3(u))xxx+η(t)(p4(u))...

  • Article
  • Open Access
3 Citations
2,525 Views
4 Pages

A simple explanation is given for the linear dependence of electrical resistance on temperature and the linear dependence of the magnetoresistance on the magnetic field in high-temperature superconducting cuprates, which has been mysterious for many...

  • Feature Paper
  • Article
  • Open Access
24 Citations
5,470 Views
18 Pages

27 December 2017

We investigate the chemical equilibria of weak polyelectrolyte nanogels with reaction ensemble Monte Carlo simulations. With this method, the chemical identity of the nanogel monomers can change between neutral or charged following the acid-base equi...

  • Article
  • Open Access
16 Citations
2,800 Views
18 Pages

Study of Kinetic Freeze-Out Parameters as a Function of Rapidity in pp Collisions at CERN SPS Energies

  • Muhammad Waqas,
  • Huai-Min Chen,
  • Guang-Xiong Peng,
  • Abd Al Karim Haj Ismail,
  • Muhammad Ajaz,
  • Zafar Wazir,
  • Ramoona Shehzadi,
  • Sabiha Jamal and
  • Atef AbdelKader

19 October 2021

We used the blast wave model with the Boltzmann–Gibbs statistics and analyzed the experimental data measured by the NA61/SHINE Collaboration in inelastic (INEL) proton–proton collisions at different rapidity slices at different center-of-mass energie...

  • Article
  • Open Access
3 Citations
6,086 Views
19 Pages

29 June 2015

In this work, we present the generalization of some thermodynamic properties of the black body radiation (BBR) towards an n-dimensional Euclidean space. For this case, the Planck function and the Stefan–Boltzmann law have already been given by Landsb...

  • Article
  • Open Access
3 Citations
1,612 Views
18 Pages

13 June 2024

Investigating the mechanism of sudden water inrush and mudflow in mountain tunnels is crucial for implementing preventive measures. Tunnel excavation through a fault or fractured zone can easily trigger sudden water inrush or mudflow. In this paper,...

  • Article
  • Open Access
12 Citations
2,581 Views
11 Pages

22 June 2022

The hydrodynamic properties of a squirmer type of self-propelled particle in a simple shear flow are investigated using the immersed boundary-lattice Boltzmann method in the range of swimming Reynolds number 0.05 ≤ Res ≤ 2.0, flow Reynolds numb...

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