Results 71 to 80 of about 1,816,559 (247)

Evaluation of type 2 diabetes mellitus effect on human cornea using specular microscopy and Pentacam corneal tomography

open access: yesJournal of the Egyptian Ophthalmological Society, 2019
Purpose evaluating effect of type 2 DM using pentacam and specular microscopy, and correlate changes to DM and its control. Methods A randomized cross sectional study .
Amal Atef Salah Taha   +3 more
doaj   +1 more source

Diffuse X-ray scattering from polished silicon: application of the distorted wave Born approximation

open access: yesJournal of Synchrotron Radiation, 2022
Measured diffuse X-ray scattering data for a `smooth' as well as for a `rough' silicon sample were fit to theoretical expressions within the distorted wave Born approximation (DWBA).
Albert Macrander   +3 more
doaj   +1 more source

Study of interface asymmetry in InAs–GaSb heterojunctions [PDF]

open access: yes, 1995
We present reflection high energy electron diffraction, secondary ion mass spectroscopy, scanning tunneling microscopy and x‐ray photoelectron spectroscopy studies of the abruptness of InAs–GaSb interfaces.
Collins, D. A.   +4 more
core   +1 more source

Extrinsic and Intrinsic Charge Transfer at Interfaces of Membrane‐Based Oxide Heterostructures

open access: yesAdvanced Electronic Materials, EarlyView.
Freestanding oxides have emerged as a new opportunity to tailor oxides outside of the typical epitaxial constraints. We present the fabrication of TiO2‐terminated SrTiO3 membranes via direct growth control. We demonstrate competing ionic and electronic charge transfer in LaAlO3/SrTiO3 bilayers using near ambient pressure XPS.
Kapil Nayak   +8 more
wiley   +1 more source

Comparison of central corneal thickness: ultrasound pachymetry versus slit-lamp optical coherence tomography, specular microscopy, and Orbscan

open access: yesClinical Ophthalmology, 2015
Wassia A Khaja, Sandeep Grover, Amy T Kelmenson, Lee R Ferguson, Kumar Sambhav, Kakarla V Chalam Department of Ophthalmology, University of Florida, College of Medicine, Jacksonville, FL, USA Background: Central corneal thickness (CCT) can be measured ...
Khaja WA   +5 more
doaj  

Cell-by-cell alignment of repeated specular microscopy images from the same eye.

open access: yesPLoS ONE, 2013
PurposeModern specular microscopes (SM) robustly depict the same central area of the corneal endothelium at different time points through a built-in fixation light.
Daniel Böhringer   +2 more
doaj   +1 more source

Automated ore microscopy based on multispectral measurements of specular reflectance. I – A comparative study of some supervised classification techniques

open access: yes, 2020
Automated mineralogy, including quantitative compositional and textural information, is a requirement for an efficient ore processing, and is comprised as an important input for geometallurgical planning.
A. López-Benito   +5 more
semanticscholar   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss   +21 more
wiley   +1 more source

Comparative study of the growth of sputtered aluminum oxide films on organic and inorganic substrates

open access: yes, 2007
We present a comparative study of the growth of the technologically highly relevant gate dielectric and encapsulation material aluminum oxide in inorganic and also organic heterostructures.
Dosch, Helmut   +7 more
core   +1 more source

Robot‐Assisted Doppler Optical Coherence Tomography for Intraoperative Evaluation of Microvascular Anastomoses

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents a robot‐assisted Doppler optical coherence tomography system for autonomous, wide‐field intraoperative assessment of microvascular anastomoses. Machine‐vision–guided probe positioning and adaptive scan planning enable three‐dimensional structural and hemodynamic imaging over extended vessel segments.
Xiaochen Li   +10 more
wiley   +1 more source

Home - About - Disclaimer - Privacy