Results 111 to 120 of about 3,196,627 (365)

Spectroelectrochemical Determination of Förster Radii for Triplet‐Polaron Quenching in Phosphorescent Organic Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
Phosphorescent OLEDs suffer from efficiency roll‐off due to triplet‐polaron quenching (TPQ). This study demonstrates for a large set of host‐guest combinations a spectroelectrochemical method to measure the absorption of charged molecules, enabling determining TPQ Förster radii (2.5–4 nm) from the spectral overlap.
Stan E. A. Jaspars, Hiroki Tomita, Clint van Hoesel, Nicolas Daub, René A.J. Janssen, Reinder Coehoorn   +5 more
wiley   +1 more source

Effect of Computer Tasks in Straight Gaze on Corneal Topographic Indices

Journal of Ophthalmic & Vision Research
Purpose: To investigate the effect of the near visual task of movie-watching in the straight gaze position on corneal topographic parameters. Methods: Thirty myopic young adults with an average age of 25.10 ± 4.13 years were recruited for the study.
Zeinab Tanhaye Shamsabady, Asieh Ehsaei, Monireh Mahjoob   +2 more
doaj   +1 more source

The use of terrestrial laser scanning for measurements in shallow-water : correction of the 3D coordinates of the point cloud [PDF]

, 2015
Although acoustic measurements are a wide-spread technique in the field of bathymetry, most systems require a water depth of at least 2 m. Furthermore, mapping shallow-water depths with acoustic techniques is expensive and complicated.
De Wulf, Alain, Deruyter, Greet, Glas, Hanne, Stal, Cornelis, Vanhaelst, Marc   +4 more
core   +1 more source

Excitonic Emission Modulation in GaSe/MoS2 Van Der Waals Heterostructure Via Plasmonic Control of Interlayer Charge Transfer

Advanced Functional Materials, EarlyView.
Plasmonic hybridization enables control of light emission in 2D van der Waals heterojunctions. By stacking multilayer GaSe and monolayer MoS2 on a silver film, light emission is enhanced at the edges due to plasmonic effects. In the center, where these effects are absent, charge transfer led to reduced light emission.
Jung Ho Kim, Tae Yeon Kim, Min Choi, Hye Yun Jeong, Young Hee Lee, Hyun Seok Lee   +5 more
wiley   +1 more source

Retinal neurovascular assessment and choroidal vascularity index in patients with keratoconus

Scientific Reports
This study aims to evaluate the macular and the optic nerve head thickness and vascular profiles in KC patients and compare them with two groups of healthy emmetrope and subjects with myopic-astigmatism. This cross-sectional study was conducted at Khatam-
Javad Sadeghi, Yalda Barooti, Hamid Gharaei, Nasser Shoeibi, Mohammadreza Sedaghat, Negareh Yazdani, Ali Abasi Mehrabadi, Mehrdad Motamed Shariati   +7 more
doaj   +1 more source

Is there an association between convergence insufficiency and refractive errors?

African Vision and Eye Health, 2017
Background: Refractive errors and convergence insufficiency play major roles in reading efficiency. Uncorrected refractive errors are a primary cause of binocular anomalies, including convergence insufficiency.
Samuel Otabor Wajuihian
doaj   +1 more source

The Australian Space Eye: studying the history of galaxy formation with a CubeSat

, 2016
The Australian Space Eye is a proposed astronomical telescope based on a 6U CubeSat platform. The Space Eye will exploit the low level of systematic errors achievable with a small space based telescope to enable high accuracy measurements of the optical ...
Barraclough, Simon, Benson, Craig, Bowen, John, Boyce, Russell, Colless, Matthew, Dimitrijevic, Igor, Griffin, Douglas, Horton, Anthony, Lambert, Andrew, Lawrence, Jon, Mathers, Naomi, Petkovic, Michael, Previte, Anthony, Puig-Suari, Jordi, Reisenfeld, Sam, Spitler, Lee, Westerman, Solomon, Zhelem, Ross   +17 more
core   +1 more source

Utility and Uncorrected Refractive Error

Ophthalmology, 2013
To investigate utility (a preference-based quality of life [QoL] measure) associated with uncorrected refractive error (URE).Cross-sectional study.A cohort of 341 consecutive patients 40 to 65 years of age with refractive error and no ocular disease impairing vision worse than 20/25 (0.1 logarithm of the minimum angle of resolution [logMAR] units) in ...
Timothy R. Fricke, Kevin D. Frick, Eric B. Papas, Eric B. Papas, Eric B. Papas, Nina Tahhan, Nina Tahhan, Nina Tahhan, Brien A. Holden, Brien A. Holden, Brien A. Holden   +10 more
openaire   +5 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Low‐Loss Far‐Infrared Surface Phonon Polaritons in Suspended SrTiO3 Nanomembranes

Advanced Functional Materials, EarlyView.
The low‐loss, highly confined, and thickness‐tunable surface phonon polaritons are demonstrated in the far‐infrared regime within transferable freestanding SrTiO3 membranes, achieving high figures of merit comparable to the previous record values from the vdW materials.
Konnor Koons, Hans A. Bechtel, Javier Taboada‐Gutiérrez, Reza Ghanbari, Yueyin Wang, Stephanie N. Gilbert Corder, Alexey B. Kuzmenko, Ruijuan Xu, Yin Liu   +8 more
wiley   +1 more source