Results 41 to 50 of about 833,654 (360)
Trifocal Intraocular Lens Implantation to Treat Visual Demands in Mongolian Patients
Central Asian Journal of Medical Sciences, 2022 Objective: Intraocular lens (IOL) implants are artificial lenses which helps to clear up the vision after cataract surgery. In this work, we aimed to compare the monofocal and trifocal IOL implantation during phacoemulsification.
Narangarav Gunchin-Ish +2 more
doaj +1 more source
Soft, smart contact lenses with integrations of wireless circuits, glucose sensors, and displays
Science Advances, 2018 This study presents a soft, smart contact lens that provides real-time sensing for diabetes through a wireless display. Recent advances in wearable electronics combined with wireless communications are essential to the realization of medical applications
Jihun Park +12 more
semanticscholar +1 more source
Fast automated analysis of strong gravitational lenses with convolutional neural networks [PDF]
Nature, 2017 Quantifying image distortions caused by strong gravitational lensing—the formation of multiple images of distant sources due to the deflection of their light by the gravity of intervening structures—and estimating the corresponding matter distribution of
Y. Hezaveh +2 more
semanticscholar +1 more source
STRUCTURE AND DYNAMICS OF SEDIMENTATION OF PRODUCTIVE STRATUM BS10-11 IN THE SOUTH-YAGUNSK FIELD
Известия высших учебных заведений: Нефть и газ, 2015 The article presents the analysis of the results of the correlation of sections by twenty-three profiles located across the strike of the ancient coastline along the regression of Neocomian basin, i.e. in the latitudinal direction.
E. N. Funikova, K. A. Galinsky
doaj +1 more source
Delhi Journal of Ophthalmology, 2018 Lenses and mirrors have always been an integral part of an ophthalmologist’s armamentarium. Since time immemorial curious minds have been trying to peep inside the eye using various techniques, be it indentation of the limbus and using direct ...
Aditi Singh, Meena Menon
doaj +1 more source
Photoaligning and Photopatterning: New LC Technology
Crystals, 2020 We demonstrate a physical model of photoalignment and photopatterning based on rotational diffusion in solid azo-dye nanolayers. We also highlight the new applications of photoalignment and photopatterning in display and photonics such as: (i) liquid ...
Vladimir Chigrinov +2 more
doaj +1 more source
Subwavelength-thick lenses with high numerical apertures and large efficiency based on high-contrast transmitarrays [PDF]
Nature Communications, 2014 Flat optical devices thinner than a wavelength promise to replace conventional free-space components for wavefront and polarization control. Transmissive flat lenses are particularly interesting for applications in imaging and on-chip optoelectronic ...
A. Arbabi +4 more
semanticscholar +1 more source
THE M31 PIXEL LENSING PLAN CAMPAIGN: MACHO LENSING AND SELF-LENSING SIGNALS [PDF]
The Astrophysical Journal, 2014 We present the final analysis of the observational campaign carried out by the PLAN (Pixel Lensing Andromeda) collaboration to detect a dark matter signal in form of MACHOs through the microlensing effect. The campaign consists of about 1 month/year observations carried out over 4 years (2007-2010) at the 1.5 m Cassini telescope in Loiano (Astronomical
S. Calchi Novati +16 more
openaire +7 more sources
Is it a coloboma or not? A new definition for isolated lens coloboma: focal zonular dysgenesis
The Pan-American Journal of Ophthalmology, 2023 Purpose: Ocular coloboma is defined as a congenital malformation caused by defective closure of the fetal fissure, resulting in a notch in any structure.
Nicole B Larivoir +5 more
doaj +1 more source
3D Printed Radar Lenses with Anti-Reflective Structures
Designs, 2019 Background: The purpose of this study was to determine if 3D printed lenses with wavelength specific anti-reflective (AR) surface structures would improve beam intensity and thus radar efficiency for a Printed Circuit Board (PCB)-based 60 GHz radar. This
Ross J. Friel +3 more
doaj +1 more source