A microscopic model for inflation from supersymmetry breaking [PDF]
European Physical Journal C: Particles and Fields, 2019 We have proposed recently a framework for inflation driven by supersymmetry breaking with the inflaton being a superpartner of the goldstino, that avoids the main problems of supergravity inflation, allowing for: naturally small slow-roll parameters ...
I. Antoniadis +3 more
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Microscopic Models of Financial Markets [PDF]
arXiv, 2001 Submitted to F. Schweitzer (ed.), Microscopic Models for Economic Dynamics, Lecture notes in physics, Springer, Berlin-Heidelberg 2002.kiel ...
Egle Samanidou +3 more
arxiv +3 more sources
Size and Ion-Doping Effects on Magnetic, Optical, and Phonon Properties of CuAlO2 Nanoparticles
Magnetochemistry, 2022 The magnetic, optical, and phonon properties of ion-doped CuAlO2 nanoparticles on the Cu or Al site are theoretically investigated. The room temperature ferromagnetism in CuAlO2 nanoparticles can be due to the surface, size, and doping effects.
Iliana Naumova Apostolova +2 more
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Finite element simulation of thermodynamic properties of NiCoCrAlY/YSZ gradient coating
Journal of Aeronautical Materials, 2023 The two-dimensional finite element microscopic model of NiCoCrAlY/YSZ gradient thermal barrier coating was established by using the representative volume element method to calculate the thermophysical properties of the gradient layer under different ...
WANG Shifeng +6 more
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Magnetic Properties of Gd-Doped Fe3O4 Nanoparticles
Applied Sciences, 2023 The magnetic properties of pure and rare earth ion-doped Fe3O4 nanoparticles are investigated using a microscopic model and the Green’s function theory.
Iliana Apostolova +2 more
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THE STATE OF THE PROBLEM OF THE JOINT MOVEMENT OF FLUID IN THE PORE SPACE
Вестник КазНУ. Серия математика, механика, информатика, 2022 This article discusses the problems of studying the issue of joint motion of liquids in the porous space. The article provides the construction of a mathematical model of the theory of ltration, which describes phase transitions.
A. A. Mussina +2 more
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Multiferroic, Phonon and Optical Properties of Pure and Ion-Doped YFeO3 Nanoparticles
Nanomaterials, 2021 The magnetic, electric, phonon and optical properties of pure and ion-doped orthorhombic YFeO3 nanoparticles are studied for the first time theoretically. The spontaneous magnetization Ms in YFeO3 decreases with decreasing particle size. Ms is also shape
Angel Apostolov +2 more
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Origin of Multiferroism of β-NaFeO2
Magnetochemistry, 2022 The multiferroic β-NaFeO2 is theoretically investigated for the first time using a microscopic model and Green’s function technique. A small room-temperature ferromagnetism is observed, which could be explained by canting of the antiferromagnetic ...
Iliana Naumova Apostolova +2 more
doaj +1 more source
An Experiment-Based Study of Formation Damage Using a Microetching Model Displacement Method
Micromachines, 2022 In the field of oil and gas exploration, drilling fluid is regarded as the essential “blood” for drilling, which mainly helps to control the formation pressure and remove cuttings from the well.
Feng Wu +7 more
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An open-source alignment method for multichannel infinite-conjugate microscopes using a ray transfer matrix analysis model [PDF]
Phil.Trans. R. Soc. A 382: 20230107 (2024), 2023 Multichannel, infinite-conjugate optical systems easily allow implementation of multiple image paths and imaging modes into a single microscope. Traditional optical alignment methods which rely on additional hardware are not always simple to implement, particularly in compact open-source microscope designs.
arxiv +1 more source