Spin-momentum locked interface modes based on transverse resonance and Zak phase in finite thickness dielectric slabs

2021 ◽  
Vol 130 (14) ◽  
pp. 143102
Author(s):  
Shreya Singh ◽  
Dia’aaldin Bisharat ◽  
Dan Sievenpiper
Keyword(s):  
Finite Thickness ◽  
Transverse Resonance ◽  
Spin Momentum

The restoration of blurred electron micrographs

1986 ◽  
Vol 44 ◽  
pp. 180-181
Author(s):  
Bridget Carragher ◽  
David A. Bluemke ◽  
Michael J. Potel ◽  
Robert Josephs
Keyword(s):  
Cross Section ◽  
Electron Micrographs ◽  
Relative Motion ◽  
Finite Thickness ◽  
Image Plane ◽  
Helical Axis ◽  
Thin Sections ◽  
Structural Details

We have investigated the feasibility of restoring blurred electron micrographs. Two related problems have been considered; the restoration of images blurred as a result of relative motion between the specimen and the image plane, and the restoration of images which are rotationally blurred about an axis. Micrographs taken while the specimen is drifting result in images which are blurred in the direction of motion. An example of rotational blurring arises in micrographs of thin sections of helical particles viewed in cross section. The twist of the particle within the finite thickness of the section causes the image to appear rotationally blurred about the helical axis. As a result, structural details, particularly at large distances from the helical axis, will be obscured.

ELECTROMAGNETIC WAVE SCATTERING BY A SCREEN OF FINITE THICKNESS AND CONDUCTIVITY

2018 ◽  
Vol 77 (16) ◽  
pp. 1409-1421 ◽  
Author(s):  
S. V. Nechitaylo ◽  
V. M. Orlenko ◽  
O. Sukharevsky ◽  
V. Vasylets
Keyword(s):  
Electromagnetic Wave ◽  
Wave Scattering ◽  
Finite Thickness ◽  
Electromagnetic Wave Scattering

Laminar film condensation on a thin finite thickness plate

10.2514/3.866 ◽  
1997 ◽  
Vol 11 ◽  
pp. 119-121
Author(s):  
Lorenzo Mottura ◽  
Luigi Vigevano ◽  
Marco Zaccanti ◽  
F. Mendez ◽  
G. Becerra ◽  
...  
Keyword(s):  
Finite Thickness ◽  
Film Condensation ◽  
Laminar Film ◽  
Laminar Film Condensation

scholarly journals The Indentation Rolling Resistance in Belt Conveyors: A Model for the Viscoelastic Friction

Lubricants ◽  
2019 ◽  
Vol 7 (7) ◽  
pp. 58 ◽  
Author(s):  
Nicola Menga ◽  
Francesco Bottiglione ◽  
Giuseppe Carbone
Keyword(s):  
Contact Problem ◽  
Finite Thickness ◽  
Numerical Procedure ◽  
Contact Problems ◽  
Accurate Solution ◽  
Rolling Contact ◽  
Viscoelastic Layer ◽  
Force Coefficient ◽  
Belt Conveyors ◽  
Energy Dissipated

In this paper, we study the steady-state rolling contact of a linear viscoelastic layer of finite thickness and a rigid indenter made of a periodic array of equally spaced rigid cylinders. The viscoelastic contact model is derived by means of Green’s function approach, which allows solving the contact problem with the sliding velocity as a control parameter. The contact problem is solved by means of an accurate numerical procedure developed for general two-dimensional contact geometries. The effect of geometrical quantities (layer thickness, cylinders radii, and cylinders spacing), material properties (viscoelastic moduli, relaxation time) and operative conditions (load, velocity) are all investigated. Physical quantities typical of contact problems (contact areas, deformed profiles, etc.) are calculated and discussed. Special emphasis is dedicated to the viscoelastic friction force coefficient and to the energy dissipated per unit time. The discussion is focused on the role played by the deformation localized at the contact spots and the one in the bulk of the thin layer, due to layer bending. The model is proposed as an accurate solution for engineering applications such as belt conveyors, in which the energy dissipated on the rolling contact of idle rollers can, in some cases, be by far the most important contribution to their energy consumption.

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