Results 51 to 60 of about 238,064 (305)

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

Advanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami, Hengzhe Ren, Erqian Dong, Ashkan Ghanbarzadeh‐Dagheyan, Chen Shen   +4 more
wiley   +1 more source

Impacto da análise do "wavefront" na refratometria de pacientes com ceratocone Impact of the wavefront analysis in refraction of keratoconus patients

Revista Brasileira de Oftalmologia, 2010
OBJETIVO: Verificar se a aberrometria ocular total (análise da frente de onda ou wavefront) possibilita a melhora na acuidade visual corrigida (AVc) com lentes esfero-cilíndricas, obtida com a refratometria manifesta em casos de ceratocone com algum grau
Renato Ambrósio Junior, Diogo Leitão Caldas, Renata Siqueira da Silva, Leonardo Nogueira Pimentel, Bruno de Freitas Valbon   +4 more
doaj   +1 more source

Three-dimensional tomographic inversion of combined reflection and refraction seismic travel-time data

, 2003
A tomographic inversion method is presented for the determination of 3-D velocity and interface structure from a wide range of body-wave seismic traveltime data types.
T. A. Minshull, Minshull, Ta, J. W. D. Hobro, Singh, Sc, S. C. Singh, Hobro, Jwd, Minshull, T.A., Hobro, J.W.D., Singh, S.C.   +8 more
core   +1 more source

Analysis of corneal topographic and densitometric properties in patients receiving systemic isotretinoin therapy

, 2023
Purpose: To evaluate dry eye parameters, corneal topographic features, corneal densitometric changes, and anterior segment parameters in patients receiving systemic isotretinoin treatment. Methods: This prospective cross-sectional study included 66 eyes
Bozali, Erman, YALINBAŞ YETER, DUYGU, Yalınbaş Yeter, Duygu, APA, ANIL SELİM, Tosun, Mustafa, Apa, Anıl Selim   +5 more
core   +1 more source

Architecture‐Driven Sensor Stability in Weft‐Knitted Engineering Textiles

Advanced Engineering Materials, EarlyView.
Textile‐integrated sensor architectures are systematically compared to evaluate their electromechanical behavior under combined mechanical and environmental loading. Pocket‐based integration exhibits stable and reproducible signals, whereas tunnel‐based routing shows higher sensitivity accompanied by increased variability.
Adnan Maroof Khan, Johannes Wendler, Dilbar Aibibu, Johannes Mersch, Michael Wöltje, Chokri Cherif   +5 more
wiley   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Associations of amount of errors due to non-cycloplegic refraction with demographic, systemic and ocular parameters.

, 2016
Associations of amount of errors due to non-cycloplegic refraction with demographic, systemic and ocular parameters.
Dayong Yang (1907350), Dan Zhu (139675), Xinxia Jing (3372497), Chen-Wei Pan (580673), Yan Wang (15435), Xianrong Yang (3372494), Kai Guo (54091), Yuanyuan Guo (50344)   +7 more
core   +1 more source

Topographic relations between ocular dominance and orientation columns in the cat striate cortex [PDF]

, 1988
Löwel S, Bischof H-J, Leutenecker B, Singer W. Topographic relations between ocular dominance and orientation columns in the cat striate cortex. Experimental Brain Research.
Leutenecker, B., Löwel, Siegrid, Bischof, Hans-Joachim, Singer, W.   +3 more
core   +1 more source

Influence of TiC and TiN Ceramic Reinforcements on the Microstructure, Thermal Expansion Behavior, and Tensile Properties of Invar 36 Manufactured by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
This study examines Invar composites reinforced with titanium carbide (TiC) and titanium nitride (TiN) using laser powder bed fusion (LPBF). It presents the influence of reinforcements on microstructure, tensile properties, and thermal expansion. Results show that TiC effectively strengthens Invar while maintaining low thermal expansion, whereas TiN ...
Ayodeji Nathaniel Oyedeji, Natasha Sacks, Johannes Pötschke, Björn Matthey   +3 more
wiley   +1 more source

Clinical Characteristics of Ocular Mucous Membrane Pemphigoid: A Systematic Review and Meta-Analysis

Purpose: To synthesize the evidence and generate a combined weighted measure on the frequency of ocular manifestations of mucous membrane pemphigoid (OMMP).
Romero-Osorio M.J., Oliver-Hernández M.V., Romero-Santos S., Barragán A.M., Pardo-Pizza D., de-la-Torre A., Cifuentes-González C., Parra-Tanoux D., Bocanegra-Oyola N.   +8 more
core   +1 more source