Results 91 to 100 of about 128,271 (341)

Ladder‐Type Benzene‐Perylene Dyes with Efficient Laser Properties in the Near‐IR by Detracting/Activating Low/High Frequency Vibronic Modes

Advanced Functional Materials, EarlyView.
The NNR‐n series of oligomeric nanographenes delivers exceptional emission performance. This work shows that this performance is originated by their ladder‐type structure, which effectively deactivates low‐frequency vibronic modes. This deactivation neglects the main pathway for non‐emissive deactivation, even in the near‐infrared region. The potential
Marcos Díaz‐Fernández, Álex Farrando Pérez, Fernando Gordillo Gámez, Pedro G. Boj, José M. Villalvilla, José A. Quintana, Yanpei Wan, Daniel Aranda, José Manuel Marín‐Beloqui, Jishan Wu, Zebing Zeng, María A. Díaz‐García, Juan Casado   +12 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

Diffractive and refractive timescales at 4.8 GHz in PSR B0329+54

, 2011
We present the results of flux density monitoring of PSR B0329+54 at the frequency of 4.8 GHz using the 32-meter TCfA radiotelescope. The observations were conducted between 2002 and 2005.
Bhat, Cordes, Cordes, Esamdin, Gupta, Gupta, Gupta, Hewish, J. Kijak, K. Krzeszowski, Kaspi, Konacki, Kramer, Malofeev, Maron, Rickett, Rickett, Romani, Shishov, Sieber, Simonetti, Stinebring, Stinebring, Stinebring, W. Lewandowski, Wang, Wang, Y. Gupta   +27 more
core   +1 more source

Scalable Perovskite Quantum Dot Glass Nanocomposites for High‐Efficiency Luminescent Solar Concentrators

Advanced Functional Materials, EarlyView.
This study evaluates the scalability of PQD GNC‐based LSCs for BIPV applications. Experimental data and Monte Carlo simulations predict performance up to 1 m2, achieving a peak power conversion efficiency of 3.17%. The results confirm the viability of these LSCs for energy‐efficient building applications.
Emre İlter, Utku Ekim, Elshan Asadi, Konstantin Tsoi, Selçuk Yerci, Miray Çelikbilek Ersundu, Ali Erçin Ersundu   +6 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

propnet: A Knowledge Graph for Materials Science [PDF]

, 2020
Discovering the ideal material for a new application involves determining its numerous properties, such as electronic, mechanical, or thermodynamic, to match those of its desired application.
Dwaraknath, S, Horton, MK, Jain, A, Legaspi, CM, Montoya, JH, Mrdjenovich, D, Persson, KA, Tshitoyan, V   +7 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

Rapid Diagnostics of Reconfigurable Intelligent Surfaces Using Space‐Time‐Coding Modulation

Advanced Functional Materials, EarlyView.
A fast reconfigurable‐intelligent‐surface (RIS) diagnostics method is proposed based on spatio‐temporal modulation with orthogonal codes. Theoretical analysis demonstrates a clear distinction in code channel power between normal and faulty elements. Simulations validate its feasibility under high fault ratios and varying receiving angles.
Yi Ning Zheng, Lei Zhang, Xiao Qing Chen, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Tie Jun Cui, Vincenzo Galdi   +7 more
wiley   +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

3D Concrete Printing of Triply Periodic Minimum Surfaces for Enhanced Carbon Capture and Storage

Advanced Functional Materials, EarlyView.
A 3D‐printable and carbon‐capturing concrete is developed by replacing cement with diatomaceous earth (DE), which enhances rheology, provides hierarchical porosity, and serves as a nucleation site for carbonation. Maximum absorption of 488.7 gCO2 kgcement−1 is achieved in 7 days, a 142% increase over conventional concrete, and the triply periodic ...
Kun‐Hao Yu, Teng Teng, So Hee Nah, Hua Chai, Yefan Zhi, Kun‐Yu Wang, Yinding Chi, Peter Psarras, Masoud Akbarzadeh, Shu Yang   +9 more
wiley   +1 more source