Concept

Macroscopic scale

Related publications (81)

MATHICSE technical Report : A parabolic local problem with exponential decay of the resonance error for numerical homogenization

This paper aims at an accurate and ecient computation of eective quantities, e.g., the homogenized coecients for approximating the solu- tions to partial dierential equations with oscillatory coecients. Typical multiscale methods are based on a micro-macro ...

MATHICSE2020

Atomic scale symmetry and polar nanoclusters in the paraelectric phase of ferroelectric materials

Dragan Damjanovic, Emad Oveisi, Sina Hashemi Zadeh, Takuya Hoshina

The nature of the "forbidden" local- and long-range polar order in nominally nonpolar paraelectric phases of ferroelectric materials has been an open question since the discovery of ferroelectricity in oxide perovskites (ABO3). A currently considered model ...

2020

A Bayesian numerical homogenization method for elliptic multiscale inverse problems

Assyr Abdulle, Andrea Di Blasio

A new strategy based on numerical homogenization and Bayesian techniques for solving multiscale inverse problems is introduced. We consider a class of elliptic problems which vary at a microscopic scale, and we aim at recovering the highly oscillatory tens ...

2020

The simulation and classification of contact clusters between rough surfaces

Shijun Yin

The contact area of rough surfaces has a great influence on many mechanical process in tribology. In this report, we used the simulation method to study the contact area between two rough surfaces and its evolution when sliding. We generated artificial sel ...

2019

Temporal upscaling in micromagnetism via heterogeneous multiscale methods

Doghonay Arjmand

We consider a multiscale strategy addressing the disparate scales in the Landau-Lifschitz equations in micromagnetism. At the microscopic scale, the dynamics of magnetic moments are driven by a high frequency field. On the macroscopic scale we are interest ...

ELSEVIER SCIENCE BV2019

Electron density learning of non-covalent systems

Michele Ceriotti, Alberto Fabrizio, Benjamin André René Meyer, Andrea Grisafi

Chemists continuously harvest the power of non-covalent interactions to control phenomena in both the micro- and macroscopic worlds. From the quantum chemical perspective, the strategies essentially rely upon an in-depth understanding of the physical origi ...

ROYAL SOC CHEMISTRY2019

Impact of in situ nanomechanics on physical metallurgy

Helena Van Swygenhoven, Johann Michler, Efthymios Polatidis

The mechanical response of modern alloys results from a complex interplay between existing microstructure and its evolution with time under stress. To unravel these processes, in situ approaches intrinsically have a critical advantage to explore the basic ...

2019

Design and performance of the LHCb trigger and full real-time reconstruction in Run 2 of the LHC

Yiming Li, Yi Zhang, Michel De Cian, Elisabeth Maria Niel, Mingkui Wang, Zhirui Xu, Jessica Prisciandaro, Niko Neufeld, Maurizio Martinelli, Donal Patrick Hill, Hang Yin, Yao Zhou, Gerhard Raven, Paolo Durante, Luis Alberto Granado Cardoso

The LHCb collaboration has redesigned its trigger to enable the full offline detector reconstruction to be performed in real time. Together with the real-time alignment and calibration of the detector, and a software infrastructure to make persistent the h ...

IOP PUBLISHING LTD2019

Intrinsic viscoelasticity of C-S-H assessed from basic creep of cement pastes

Karen Scrivener, Julien Ston, Zhangli Hu, Adrien Jean Régis Maurice Hilaire, Pietro Lura

This paper investigates the fundamental mechanisms behind the effect of supplementary cementitious materials (SCMs) on the basic creep behavior of cement pastes. The intrinsic creep properties of the C-S-H gel are assessed based on measurements of uniaxial ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Synthesis and Analysis of Linear and Nonlinear Bianisotropic Metasurfaces

Olivier Martin, Karim Achouri, Christophe Caloz

We present our recent progress pertaining to the synthesis and analysis of bianisotropic linear and nonlinear metasurfaces. These developments are based on the generalized sheet transition conditions (GSTCs), which provide a very complete and general metho ...

IEEE2018

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