Results 21 to 30 of about 7,137,507 (302)
Binocular interaction: contrast matching and contrast discrimination are predicted by the same model [PDF]
, 2007 How do signals from the 2 eyes combine and interact? Our recent work has challenged earlier schemes in which monocular contrast signals are subject to square-law transduction followed by summation across eyes and binocular gain control.
Tim S. Meese +11 more
core +1 more source
The Comparative Evaluation of the Translucency of Crowns Fabricated with Three Different All-Ceramic Materials: An in Vitro Study [PDF]
Journal 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
Monte Carlo simulation on the imaging contrast enhancement in nanoparticle-enhanced radiotherapy
Journal of Medical Physics, 2018 This study focused on the imaging in radiotherapy by finding the relationship between the imaging contrast ratio and appropriate gold, iodine, iron oxide, silver, and platinum nanoparticle concentrations; the relationship between the imaging contrast ...
Ferdos Albayedh, James C. L. Chow
doaj +1 more source
High-Performance All-Optical Logic Operations Using Ψ-Shaped Silicon Waveguides at 1.55 μm
Micromachines, 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
Sensors, 2016 Micromirror-based scanning displays have been the focus of a variety of applications. Lissajous scanning displays have advantages in terms of power consumption; however, the image quality is not good enough.
Weiqi Du, Gaofei Zhang, Liangchen Ye
doaj +1 more source
2 × 2 Compact Silicon Waveguide-Based Optical Logic Functions at 1.55 μm
Photonics, 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
Ambient contrast ratio of quantum-dot color-converted micro-LED displays
Results in Physics, 2023 Pixelated quantum dot color conversion layer (PQDCCL) is the most promising approach to realize a full-color micro-LED display. However, the QD excitation by ambient light has non-negligible impact on the ambient contrast ratio (ACR) and the display ...
Liwen Deng +10 more
doaj +1 more source
The functional role of contrast adaptation [PDF]
, 1988 Prolonged inspection of high contrast sinewave gratings increases the contrast required to detect gratings having a similar spatial frequency and orientation. The functional role of such adaptation has, however, in the past, eluded disclosure.
Heitger, F., Greenlee, Mark W.
core +1 more source
R_Contrast: Rapid measurement of recognition contrast thresholds. [PDF]
, 1997 R_Contrast is a program for the rapid assessment of recognition contrast thresholds on the ...
Strasburger, Hans, Hans Strasburger
core +1 more source
Contrast agents and renal cell apoptosis [PDF]
, 2008 Contrast media (CM) induce a direct toxic effect on renal tubular cells. This toxic effect may have a role in the pathophysiology of contrast nephropathy.
Romano, Giulia
core +1 more source