Results 1 to 10 of about 2,333,185 (258)

Transparent Electrochromic Polymers with High Optical Contrast and Contrast Ratio [PDF]

open access: yesJACS Au
Colored-to-transmissive electrochromic polymers, known for their wide selection of colors and solution processability, have gained great attraction in thin film electrochromic devices that have entered the market. However, their adoption in the real world is limited due to their limited optical transparency and contrast.
Zhiyang Wang   +5 more
doaj   +4 more sources

Quantitative Assessment of Bone Marrow Edema in Adolescent Athletes with Lumbar Spondylolysis Using Contrast Ratio on Magnetic Resonance Imaging [PDF]

open access: yesAsian Spine Journal, 2021
Study Design Prospective cohort study. Purpose To quantitatively evaluate bone marrow edema (BME) in the pedicle on magnetic resonance imaging (MRI) for adolescent athlete patients with spondylolysis.
Toshio Nakamae   +5 more
doaj   +2 more sources

Multifield and inverse-contrast switching of magnetocaloric high contrast ratio MRI labels. [PDF]

open access: yesMagn Reson Med, 2021
PurposeDemonstrating multifield and inverse contrast switching of magnetocaloric high contrast ratio MRI labels that either have increasing or decreasing moment versus temperature slopes depending on the material at physiological temperatures and different MRI magnetic field strengths.MethodsTwo iron‐rhodium samples of different purity (99% and 99.9 ...
Barbic M   +7 more
europepmc   +4 more sources

Investigation of Enhanced Ambient Contrast Ratio in Novel Micro/Mini-LED Displays [PDF]

open access: yesNanomaterials, 2021
In recent years, ambient contrast ratio (ACR) has become very critical for advanced outdoor displays, including transparent displays, portable displays, and so on.
Ke Zhang   +4 more
doaj   +2 more sources

Oblique views of chest radiography from a designed rotation angle recommendation increase the contrast ratio between obscured lesions and surrounding structures [PDF]

open access: yesThoracic Cancer, 2019
Background Chest radiography (CXR) is the main tool used to detect pulmonary nodules. Lateral views of CXR are less effective and the aim of our study was to develop a rotation angle recommendation model to obtain the best oblique CXR with significantly ...
Hui‐Chen Lin   +6 more
doaj   +2 more sources

Colorless-to-colorful switching electrochromic polyimides with very high contrast ratio [PDF]

open access: yesNature Communications, 2019
Electrochromic polymers (ECPs) receive great attention due to their facile colour tunablility, however colourless-to-black ECPs with high contrast ratio are still unattainable.
Qiang Zhang   +3 more
doaj   +2 more sources

Quantifying Bone Marrow Edema Adjacent to the Lumbar Vertebral Endplate on Magnetic Resonance Imaging: A Cross-Sectional Study of Patients with Degenerative Lumbar Disease [PDF]

open access: yesAsian Spine Journal, 2022
Study Design Cross-sectional study. Purpose We aimed to quantitatively assess bone marrow edema (BME) on magnetic resonance imaging (MRI) for patients with degenerative lumbar diseases.
Toshio Nakamae   +9 more
doaj   +1 more source

Proposal of a Cascade Photonic Crystal XOR Logic Gate for Optical Integrated Circuits with Investigation of Fabrication Error and Optical Power Changes

open access: yesPhotonics, 2021
A compact and simple structure is designed to create an all-optical XOR logic gate using a two-dimensional, photonic crystal lattice. The structure was implemented using three waveguides connected by two nano-resonators.
Ahmad Mohebzadeh-Bahabady, Saeed Olyaee
doaj   +1 more source

The Application of Contrast-Enhanced 3D-STIR-VISTA MR Imaging of the Brachial Plexus

open access: yesJournal of the Belgian Society of Radiology, 2022
Objective: To introduce contrast-enhanced 3D-STIR-VISTA sequence that would improve the image quality for the brachial plexus imaging and enhance the contrast between the brachial plexus and surrounding tissues.
Dingsheng Han   +3 more
doaj   +1 more source

Optical Logic Gates Based on Z-Shaped Silicon Waveguides at 1.55 μm

open access: yesMicromachines, 2023
In the last ten years, silicon photonics has made considerable strides in terms of device functionality, performance, and circuit integration for a variety of practical uses, including communication, sensing, and information processing.
Amer Kotb   +3 more
doaj   +1 more source

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