Radiative Thermal Rectification between SiC and SiO2 [PDF]
, 2015 By means of fluctuationnal electrodynamics, we calculate radiative heat flux between two pla-nar materials respectively made of SiC and SiO2. More specifically, we focus on a first (direct) situation where one of the two materials (for example SiC) is at
Drevillon, Jérémie +4 more
core +4 more sources
Simulated Dynamical Weakening and Abelian Avalanches in Mean-Field Driven Threshold Models
, 2004 Mean-field coupled lattice maps are used to approximate the physics of driven threshold systems with long range interactions. However, they are incapable of modeling specific features of the dynamic instability responsible for generating avalanches. Here
Andersen +17 more
core +1 more source
Effect of electro discharge machining (EDM) on the AISI316L SS white layer microstructure and corrosion resistance [PDF]
, 2012 The localised corrosion resistance of austenitic stainless steels is strongly influenced by the quality of finished surface. EDM machining induces substantial changes by the high thermal gradients generated by electric sparks.
AMADOU, Tidiane +4 more
core +6 more sources
Weakened field equations in General Relativity admitting an ‘unphysical’ metric [PDF]
Communications in Mathematical Physics, 1967 Certain weakened vacuum field equations which have been suggested as alternatives to the vacuum field equations of General Relativity are investigated. It is shown that they each possess a solution which corresponds to an isolated mass at the origin which repels test particles.
openaire +3 more sources
A damage model based on failure threshold weakening
, 2010 A variety of studies have modeled the physics of material deformation and damage as examples of generalized phase transitions, involving either critical phenomena or spinodal nucleation.
Bak +55 more
core +1 more source
Vanishing viscosities and error estimate for a Cahn-Hilliard type phase field system related to tumor growth [PDF]
, 2015 In this paper we perform an asymptotic analysis for two different vanishing viscosity coefficients occurring in a phase field system of Cahn-Hilliard type that was recently introduced in order to approximate a tumor growth model. In particular, we extend
Colli, Pierluigi +3 more
core +3 more sources
Stratification of sunspot umbral dots from inversion of Stokes profiles recorded by Hinode
, 2008 This work aims to constrain the physical nature of umbral dots (UDs) using high-resolution spectropolarimetry. Full Stokes spectra recorded by the spectropolarimeter on Hinode of 51 UDs in a sunspot close to the disk center are analyzed.
A. Lagg +16 more
core +1 more source
MathematicsThis paper proposes a sensorless field-oriented control (FOC) strategy for permanent magnet synchronous motors (PMSMs), focusing on rotor flux position estimation based on back-electromotive force (back-EMF) signals. The limitations of conventional phase-
Chung-Wuu Ding, Pi-Cheng Tung
doaj +1 more source
Hall coefficient and magnetoresistance of 2D spin-polarized electron systems [PDF]
, 2006 Recent measurements of the 2D Hall resistance show that the Hall coefficient is independent of the applied in-plane magnetic field, i.e., the spin-polarization of the system.
Hwang, E. H., Sarma, S. Das
core +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source