Results 171 to 180 of about 1,054,818 (327)

Performance of measurands in time-domain optical brain imaging: depth selectivity versus contrast-to-noise ratio. [PDF]

Biomed Opt Express, 2020
Sudakou A, Yang L, Wabnitz H, Wojtkiewicz S, Liebert A.   +4 more
europepmc   +1 more source

Segmentation of low contrast-to-noise ratio images applied to functional imaging using adaptive region growing [PDF]

, 2009
Jorge Cabello, Alexis Bailey, Ian Kitchen, Matthew Guy, Kevin Wells   +4 more
openalex   +1 more source

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Assessing the deep learning based image quality enhancements for the BGO based GE omni legend PET/CT

EJNMMI Physics
Background This study investigates the integration of Artificial Intelligence (AI) in compensating the lack of time-of-flight (TOF) of the GE Omni Legend PET/CT, which utilizes BGO scintillation crystals.
Meysam Dadgar, Amaryllis Verstraete, Jens Maebe, Yves D’Asseler, Stefaan Vandenberghe   +4 more
doaj   +1 more source

Signal-to-Noise Ratio and Contrast-to-Noise Ratio Comparisons Between a Wireless Volume Radiofrequency Coil and a Commercially Available Wired Radiofrequency Coil [PDF]

Ren Yujie
openalex   +1 more source

Patterning the Void: Combining L‐Systems with Archimedean Tessellations as a Perspective for Tissue Engineering Scaffolds

Advanced Functional Materials, EarlyView.
This study introduces a novel multi‐scale scaffold design using L‐fractals arranged in Archimedean tessellations for tissue regeneration. Despite similar porosity, tiles display vastly different tensile responses (1–100 MPa) and deformation modes. In vitro experiments with hMSCs show geometry‐dependent growth and activity. Over 55 000 tile combinations
Maria Kalogeropoulou, Kenny A. van Kampen, Pierpaolo Fucile, Carlos Mota, Lorenzo Moroni   +4 more
wiley   +1 more source

Contrast to Noise Ratio and Contrast Detail Analysis in Mammography:A Monte Carlo Study [PDF]

, 2015
Vasileios I Metaxas, Harry Delis, Christina Kalogeropoulou, P. Zampakis, George Panayiotakis   +4 more
openalex   +1 more source

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

Advanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt, Jens Timmer, Elisabetta Ada Cavalcanti‐Adam   +2 more
wiley   +1 more source

Contrast-to-noise ratio difference in small field of view cone beam computed tomography machines

, 2012
Boulos Bechara, C. Alex McMahan, William S. Moore, Marcel Noujeim, Hassem Geha, Fabrício B. Teixeira   +5 more
openalex   +2 more sources

Enhanced Switching Performance in Single‐Crystalline PbTiO3 Ferroelectric Memristors for Replicating Synaptic Plasticity

Advanced Functional Materials, EarlyView.
This study demonstrated single‐crystalline PbTiO3‐based memristors with atomically sharp interfaces, well‐ordered lattices, and minimal lattice mismatch. The devices exhibited an ON/OFF ratio exceeding 105, high stability, and rich resistance‐state modulation.
Haining Li, Zhiqiang Liao, Risa Kataoka, Md Sarker Shamim, Takeshi Kijima, Hiroyasu Yamahara, Hitoshi Tabata, Munetoshi Seki   +7 more
wiley   +1 more source