Results 81 to 90 of about 36,880 (229)

Optimization of CEST MRI Reporter Protein Design Using Cation‐Pi Networks

open access: yesChemistry – A European Journal, EarlyView.
A novel engineering approach can produce reporter proteins for cell and viral therapy tracking with unique magnetic resonance imaging (MRI) signatures, detectable with chemical exchange saturation transfer (CEST). We discover how cation‐π interactions between amino acid groups can help us fine‐tune magnetic resonance properties for noninvasive ...
David E. Korenchan   +8 more
wiley   +1 more source

A Novel Laser-Based Display and Imaging Combined System

open access: yesIEEE Photonics Journal, 2018
Laser-based displays can offer a wide color gamut to the viewers due to the narrow bandwidth of laser source, which is quite different from traditional display systems.
Xiaohui Ma   +4 more
doaj   +1 more source

Highly Efficient Sky‐Blue Perovskite Quantum Dot Light‐Emitting Diodes via Ligand‐Assisted Trap‐State Passivation

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Highly efficient sky‐blue LED with EQE of 13.6% is realized through short‐chain ligand tridecylamine treaded perovskite quantum dots, due to the suppressed non‐radiative recombination from the trap state. These results indicate that the ligand with strong affinity can facilitate the surface defects passivation, resulting in enhanced optical properties,
Mengyu Zhu   +14 more
wiley   +1 more source

Dual‐Mode Electrophoretic Displays Enabled by Quantum Dot‐Decorated PR48:2 Pigment Particles and TiO2 for All‐Weather Visibility, Excellent Bistability, and Enhanced Readability

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a novel quantum dot electrophoretic display (QDEPD), which combines electro‐controlled reflection and optically‐triggered emission to achieve efficient multi‐modal switching within a single pixel. By incorporating multi‐component nanostructures, the system enhances functional integration and multi‐modal response capabilities.
Xingke Zheng   +8 more
wiley   +1 more source

Programmable luminescent platform based on carbon quantum dots enables wavelength‐multiplexed optical data storage and encryption

open access: yesFlexMat, EarlyView.
A carbon‐quantum‐dots (CQDs)‐based programmable luminescent platform is proposed for multidimensional optical information encryption and high‐capacity data storage by leveraging wavelength‐division multiplexing. Furthermore, a prototype tri‐layer optical disk is demonstrated, where data written via laser ablation on different CQD layers are retrieved ...
Honglei Sun   +9 more
wiley   +1 more source

Spirobifluorene fusion in multiple resonance frameworks enables efficient pure‐red OLEDs with narrowband emission and suppressed efficiency roll‐off

open access: yesFlexMat, EarlyView.
An orthogonal spirobifluorene‐fusion strategy is introduced for B/N/O‐alternated MR frameworks, enabling improved kRISC (5.46 × 103 s−1), high ΦPL (97%), and narrow‐band pure‐red emission. Vacuum‐evaporated OLEDs incorporating this emitter achieve an EQEmax >40% (FWHM = 36 nm) and exhibit exceptionally low efficiency roll‐off at high luminance ...
Yan‐Yun Jing   +7 more
wiley   +1 more source

Color gamut extension of polyester-based materials in supercritical CO2 and its application

open access: yesJournal of CO2 Utilization
In light of the global emphasis on sustainable development, the utilization of environmentally friendly supercritical CO2 dyeing technology represents a significant avenue for the textile industry to align itself with this trend. Nevertheless, the use of
Tianhua Li   +6 more
doaj   +1 more source

Color Constancy Using CNNs

open access: yes, 2015
In this work we describe a Convolutional Neural Network (CNN) to accurately predict the scene illumination. Taking image patches as input, the CNN works in the spatial domain without using hand-crafted features that are employed by most previous methods.
Bianco, Simone   +2 more
core   +1 more source

Patternable Stimuli‐Responsive Perovskite Fiber Membranes for Underwater Anti‐Counterfeiting and Information Encryption

open access: yesInterdisciplinary Materials, EarlyView.
Dual‐ligand‐modified perovskite fiber membranes achieve reversible, water‐triggered fluorescence switching with high environmental stability, enabling dynamic optical encryption and anti‐counterfeiting in moisture‐rich or water environments. ABSTRACT All‐inorganic lead halide perovskites are favored for next‐generation optoelectronic devices due to ...
Huanyu Chen   +8 more
wiley   +1 more source

Relating Standardized Visual Perception Measures to Simulator Visual System Performance [PDF]

open access: yes
Human vision is quantified through the use of standardized clinical vision measurements. These measurements typically include visual acuity (near and far), contrast sensitivity, color vision, stereopsis (a.k.a. stereo acuity), and visual field periphery.
Kaiser, Mary K., Sweet, Barbara T.
core   +1 more source

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