Results 11 to 20 of about 2,333,185 (258)

Influence of contrast injection flux on the outcome of the angiotomography for the diagnosis of pulmonary embolism

open access: yesBrazilian Journal of Radiation Sciences, 2021
With the development of computed tomography, tomography examinations have been replacing other modalities of imaging tests. Computed tomography angiography to pulmonary thromboembolism, for example, has been replacing pulmonary scintigraphy of ...
Warley Ferreira Felix   +4 more
doaj   +1 more source

Fano Resonances in Plasmonic Ring‐Disc‐Pair Systems

open access: yesAdvanced Photonics Research, 2023
Fano resonances in plasmonic nanostructures, generated by the spectral interference between a broad resonance or continuum and a narrow resonance, have attracted significant interest in recent literature.
Wei Tao   +4 more
doaj   +1 more source

An Image Quality Improvement Method in Side-Scan Sonar Based on Deconvolution

open access: yesRemote Sensing, 2023
Side-scan sonar (SSS) is an important underwater imaging method that has high resolutions and is convenient to use. However, due to the restriction of conventional pulse compression technology, the side-scan sonar beam sidelobe in the range direction is ...
Jia Liu   +3 more
doaj   +1 more source

Detecting Salient Image Objects Using Color Histogram Clustering for Region Granularity

open access: yesJournal of Imaging, 2021
Salient object detection represents a novel preprocessing stage of many practical image applications in the discipline of computer vision. Saliency detection is generally a complex process to copycat the human vision system in the processing of color ...
Seena Joseph, Oludayo O. Olugbara
doaj   +1 more source

Display characteristics and their impact on digital pathology: A current review of pathologists' future “microscope”

open access: yesJournal of Pathology Informatics, 2020
Digital displays (monitors) are an indispensable component of a pathologists' daily workflow, from writing reports, viewing whole-slide images, or browsing the Internet.
Jacob T Abel   +9 more
doaj   +1 more source

A Stronger Aadaptive Local Dimming Method with Details Preservation

open access: yesApplied Sciences, 2020
Local dimming technology focuses on improving the contrast ratio of the displayed images for a great visual perception. It consists of backlight extraction and pixel compensation.
Tao Zhang   +4 more
doaj   +1 more source

The Comparative Evaluation of the Translucency of Crowns Fabricated with Three Different All-Ceramic Materials: An in Vitro Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2015
Introduction: All-ceramic crowns with different core materials of different strength and aesthetics are available in recent years. The aesthetics of the crown depends mainly on the shade and translucency.
Y. Sravanthi   +4 more
doaj   +1 more source

High-Performance All-Optical Logic Operations Using Ψ-Shaped Silicon Waveguides at 1.55 μm

open access: yesMicromachines, 2023
We simulate with FDTD solutions a complete family of basic Boolean logic operations, which includes XOR, AND, OR, NOT, NOR, NAND, and XNOR, by using compact Ψ-shaped silicon-on-silica optical waveguides that are operated at a 1.55 μm telecommunications ...
Amer Kotb   +2 more
doaj   +1 more source

2 × 2 Compact Silicon Waveguide-Based Optical Logic Functions at 1.55 μm

open access: yesPhotonics, 2023
Compact waveguide crossing is a fundamental component of optoelectronic fusion chip solutions due to its orders-of-magnitude smaller footprint than that of conventional photonic integrated circuits.
Amer Kotb, Kyriakos E. Zoiros
doaj   +1 more source

Effects of Speed Sintering on Multilayered Monolithic Zirconia

open access: yesCumhuriyet Dental Journal, 2019
Objective:In dentistry, different products are being developed in order to shorten the chairside but the interactions between these materials needs further investigations. This study aims to investigate the two different short time sintering protocols on
Mehmet Coskun, Fatih Sarı
doaj   +1 more source

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