Results 101 to 110 of about 1,895,513 (217)

Flexible wearable electronics for cardiovascular monitoring from surface signals to deep physiological insights

open access: yesFlexMat, EarlyView.
This review organizes flexible wearable electronics for cardiovascular monitoring into four interconnected information layers: surface electrophysiology, hemodynamic sensing, vascular imaging, and biofluid biomarker analysis. This framework clarifies how electrical rhythm, vascular loading, structural and flow‐related features, and biochemical states ...
Qiao Chen   +5 more
wiley   +1 more source

Custom-made anterior chamber intraocular lens for aphakia: a case report

open access: yesBMC Ophthalmology
Background Aphakia without adequate capsular support requires alternative intraocular lens (IOL) fixation strategies. Standard options include sulcus-fixated posterior chamber IOLs and retropupillary iris-claw lenses, both of which depend on specific ...
Omid Kermani
doaj   +1 more source

Architecting nano‐Al/HMX/CuO energetic micro‐units unlocks superior interface and highly efficient combustion

open access: yesInfoMat, EarlyView.
Improving the dispersion of nano‐aluminum is of great importance in explosives and propellants. The spherical Al/HMX/CuO energetic micro‐units were prepared using microchannel technology, which significantly improved the uniformity and dispersion of nano‐Al. It also enhanced the mass and heat transfer efficiency between the fuel and oxidizer components,
Gazi Hao   +12 more
wiley   +1 more source

Wearing patterns with HEMA contact lenses

open access: yes, 1988
A group of consecutively presenting wearers of hydroxyethyl methacrylate contact lenses attending a large contact lens clinic were surveyed to determine patterns of wear and factors which may influence this pattern.
Sek, Barbara   +2 more
core  

A Reversible Clearing Strategy Enables Robust Label‐Free Phase Imaging of Thick Tissues

open access: yesLaser &Photonics Reviews, EarlyView.
The principle of a reversible clearing strategy via glycerol and tartrazine solution (GTS) for robust whole‐slide label‐free phase imaging of thick tissue slices via high‐throughput Fourier ptychographic microscopy (FPM) and lensless digital holographic microscopy (LDHM). ABSTRACT Thick biological specimens impose strong scattering and attenuation that
Mikołaj Krysa   +5 more
wiley   +1 more source

Life expectancy of rigid gas permeable and high water content contact lenses

open access: yes, 1996
PURPOSE: The purpose of this study was to evaluate the life expectancy of various rigid gas permeable (RGP) lens materials used on a daily wear basis and to compare these results with the life expectancy of a matched group of soft lens wearers.
Jones, Lyndon   +2 more
core  

Fungal‐Assisted Recycling of Carbon‐Fiber‐Reinforced Polymer Waste via Mechanistically Informed Hybrid Pathways

open access: yesPolymer Composites, EarlyView.
Fungal‐assisted recycling of carbon‐fibre reinforced polymer waste. ABSTRACT Epoxy‐based carbon‐fiber‐reinforced polymer (CFRP) composites are increasingly used in high‐performance applications, yet their highly cross‐linked and chemically resistant matrices remain difficult to recycle sustainably.
S. Ali Hadigheh, Yaning Wei, Yunyun Tao
wiley   +1 more source

How often are contact lenses worn?

open access: yes, 2009
There are important clinical, academic and commercial reasons for seeking to develop a comprehensive understanding of the frequency of wear of different forms of contact lenses. Data that we have gathered from annual contact lens fitting surveys over the
Morgan, Philip B., Efron, Nathan
core   +1 more source

Spectroscopic Analysis of Hydration Structures in PEG‐ and PMPC‐Containing Hydrogels by Pressure‐Controlled ATR‐IR Combined With Multivariate Curve Resolution

open access: yesSurface and Interface Analysis, EarlyView.
ABSTRACT Hydration structures govern the properties and functions of hydrogels, yet selectively measuring hydration water in the presence of abundant bulk water remains analytically challenging. Here we applied pressure‐controlled attenuated total reflection infrared spectroscopy (ATR‐IR) combined with multivariate curve resolution (MCR) analysis, a ...
Shoichi Maeda   +7 more
wiley   +1 more source

Sterilization of hydrophilic contact lenses. [PDF]

open access: yesBritish Journal of Ophthalmology, 1972
J, Dallos, W H, Hughes
openaire   +2 more sources

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