In this paper, an analytical model based on Modified Slab Method is presented for rolling of clad sheet or double-layers in which the two layers are bounded prior to rolling. This model considers the general case of asymmetrical rolling due to unequal surface speed, different contact friction, roll diameters, flow stress, and thickness ratios of the two layers. Using this model, rolling param...

PURPOSE To better understand the long-term effect of idiopathic epiretinal membrane peeling on retinal anatomy, the foveal structure and the thickness of individual retinal layers were analyzed with frequency-domain optical coherence tomography (fdOCT). The long-term postoperative course of macular thickness was followed. METHODS fdOCT scans were obtained from the horizontal midline in 33 eye...

Fe/Cr multilayers with monatomic Sn layers embedded in the Cr layers were grown epitaxially on MgO(001) substrates, and the magnetic hyperfine field at the Sn nuclear sites was examined using Mössbauer spectroscopy. It was found that a non-zero hyperfine field is induced at the Sn sites at room temperature and that the value reduces drastically from 10 to 2 T when the Cr layer thickness decreas...

We investigate the influence of slab thickness on the electronic structure of the Si(1 0 0)- p([Formula: see text]) surface in density functional theory (DFT) calculations, considering both density of states and band structure. Our calculations, with slab thicknesses of up to 78 atomic layers, reveal that the slab thickness profoundly affects the surface band structure, particularly the danglin...

We investigate the spin reorientation of structurally unstable magnetic ultrathin films ~base films! using magnetic capping layers. The capping layers, whose effective anisotropy constant is opposite that of the base films, are grown on the base films with no transformed structure and induce a spin reorientation after exceeding a critical thickness. The critical thickness of the capping layers ...

The microstructure evolution of magnetron-sputtered Ni/C multilayers was investigated by varying the Ni and C layer thickness in the region of a few nanometers. For the samples having 2.6-nm-thick C layers, the interface width increases from 0.37 to 0.81 nm as the Ni layer thickness decreases from 4.3 to 1.3 nm. Especially for the samples with Ni layers less than 2.0 nm, the interface width cha...

Estimation of the reflection coefficients of plane electromagnetic wave from the dielectrics is well understood. However, there exists an enormous application of this fundamental phenomenon of electromagnetics in determination of thickness of dielectrics from the measured reflection coefficients. Such applications are very important in the development of sensors where there is no other undestru...

struggling in world's competitive markets, industries are attempting to upgrade their technologies aiming at improving the quality and minimizing the waste and cutting the price. industry tries to develop their technology in order to improve quality via proactive quality control. this paper studies the possible paint quality in order to reduce the defects through neural network techniques in au...

PURPOSE To evaluate the thickness of the 10 retinal layers in the paramacular area of Parkinson disease patients using a new segmentation technology of optical coherence tomography (OCT) to examine whether the thickness of specific layers predicts neurodegeneration or Parkinson disease severity. DESIGN Observational prospective study. METHODS Parkinson disease patients (n = 129) and age-mat...