Results 91 to 100 of about 342,349 (349)

Real‐Time Characterization of Polypropylene Jet Dynamics in Melt Electrospinning Using Laser Diffraction and Image Analysis

Advanced Engineering Materials, EarlyView.
This study uses real‐time laser diffraction image analysis to quantify fiber diameter changes and whipping behavior from the nozzle to the collector under varying electric field conditions. By capturing diffraction (scattering) intensity changes and bending angles, melt jet and whipping behavior are accurately assessed, supporting melt electrospinning ...
Jihwan Lim, Eunji Moon, Minseo Kim, Han Seong Kim   +3 more
wiley   +1 more source

Distinguishing Refracted Features using Light Field Cameras with Application to Structure from Motion [PDF]

arXiv, 2018
Robots must reliably interact with refractive objects in many applications; however, refractive objects can cause many robotic vision algorithms to become unreliable or even fail, particularly feature-based matching applications, such as structure-from-motion.
arxiv  

Toughness of Confined Auxetic Foams

Advanced Engineering Materials, EarlyView.
Auxetic (negative Poisson's ratio) materials offer benefits such as impact mitigation, thermal insulation, vibration damping, and reduced shear strain, although their fracture mechanics are largely unexplored. This study investigates damage initiation and propagation in confined re‐entrant auxetic foams from polyurethane via experimental ...
Adrianos E. F. Athanasiadis, Oliver Duncan, Michal K. Budzik, Marcelo A. Dias   +3 more
wiley   +1 more source

Diurnal Refractive Error Fluctuations in Diabetic and Control Subjects [PDF]

, 2007
Purpose: Refractive error has been shown to fluctuate in poorly controlled diabetic patients. The purpose of this study was to measure acute diurnal fluctuations in refractive error and blood glucose levels (BGLs) in diabetic and control subjects ...
Hosking, S. L., Huntjens, B., O’Donnell, C., Workman, H.   +3 more
core  

Efficacy of a gas permeable contact lens to induce peripheral myopic defocus [PDF]

, 2015
Purpose. The purpose of this work was to evaluate the potential of a novel custom-designed rigid gas permeable (RGP) contact lens to modify the relative peripheral refractive error in a sample of myopic patients. Methods.
Anstice, Atchison, Atchison, Charman, Cho, Cho, Faria-Ribeiro, Fonn, Gonzalez-Meijome, Jones, Jones-Jordan, Kakita, Kwok, Lin, Logan, Lopes-Ferreira, Lopes-Ferreira, Lopes-Ferreira, Morgan, Paune, Queiros, Radhakrishnan, Rosen, Sankaridurg, Sankaridurg, Santodomingo-Rubido, Santodomingo-Rubido, Shen, Sorbara, Ticak, Walline, Walline, Wolffsohn   +32 more
core   +2 more sources

Engineering the Hierarchical Porosity of Granular Hydrogel Scaffolds Using Porous Microgels to Improve Cell Recruitment and Tissue Integration

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
By fabricating and covalently assembling gelatin methacryloyl (GelMA) porous microgels, a new class of granular hydrogel scaffolds with hierarchical porosity is developed. These scaffolds have a significantly higher void fraction than their counterparts made up of nonporous microgels, enhancing cell recruitment and tissue integration. This research may
Alexander Kedzierski, Sina Kheirabadi, Arian Jaberi, Zaman Ataie, Catherine L. Mojazza, Marisa L. Williamson, Anton M. Hjaltason, Aneesh Risbud, Yuanhui Xiang, Amir Sheikhi   +9 more
wiley   +1 more source

Further comments on Mark Stockman's article "Criterion for Negative Refraction with Low Optical Losses from a Fundamental Principle of Causality" [PDF]

arXiv, 2020
We clarify the claims and errors in the paper "Criterion for Negative Refraction with Low Optical Losses from a Fundamental Principle of Causality" by Mark Stockman. Contrary to the central assertion in that paper, simple examples consistent with the basic inequality which Stockman discovered show that it is possible to have negative refraction and low
arxiv  

Material Composition Gradient Controls the Autonomous Opening of Banksia Seed Pods in Fire‐Prone Habitats

Advanced Functional Materials, EarlyView.
The seed pod valves of Australian Banksia attenuata plants are not simply bi‐layers which bend when dry. These experiments and models reveal complex mechanics, which allow seed release only after several steps of seed pod opening. Stiffness gradients prevent delamination of the valves during loading, and a shape‐memory function protects the seeds ...
Friedrich Reppe, Lorenzo Guiducci, Rivka Elbaum, Peter Werner, John W. C. Dunlop, David J. Merritt, Peter Fratzl, Michaela Eder   +7 more
wiley   +1 more source

Wetting of Surface Grafted Hydrophilic‐b‐Hydrophobic Block Copolymer Brushes

Advanced Functional Materials, EarlyView.
The wetting properties of surface grafted diblock copolymer brushes are influenced by the thickness of the hydrophilic bottom block and the hydrophobic top block. The surface adapts in presence of water and the contact angles of the bottom block shine through. Abstract The wetting of diblock copolymer brushes by water is studied.
Benjamin Leibauer, Andres de los Santos Pereira, Diego Fernando Dorado Daza, Y. Wang, A.S. Hazrah, Ognen Pop‐Georgievski, Hans‐Jürgen Butt, Rüdiger Berger   +7 more
wiley   +1 more source

Effect of refractive error on temperament and character properties

International Journal of Ophthalmology, 2015
AIM: To determine the effect of refractive error on temperament and character properties using Cloninger’s psychobiological model of personality. METHODS: Using the Temperament and Character Inventory (TCI), the temperament and character profiles of 41
Emine Kalkan Akcay, Fatih Canan, Huseyin Simavli, Derya Dal, Fatih Canan, Nagihan Ugurlu, Omer Gecici, Nurullah Cagil   +7 more
doaj   +1 more source