Results 1 to 10 of about 100,646 (310)
An analysis of methods for aberrated spot diagram center evaluation [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2021 The paper considers spot diagram center evaluation methods and errors depending on aberration type and value. The authors present the modified center of mass method which provides higher accuracy of center evaluation for spot diagram with coma.
Tatiana V. Ivanova +4 more
doaj +1 more source
HISTORY OF LOW-FREQUENCY RESEARCH OF PULSARS [PDF]
Radio Physics and Radio Astronomy, 2021 Purpose: The main most pronounced events, which occurred in the initial period of the pulsars’ study at the decameter wavelength range, are presented.
O. M. Ulyanov
doaj +1 more source
Visual performance after conventional LASIK and wavefront-guided LASIK with iris-registration:results at 1 year [PDF]
International Journal of Ophthalmology, 2013 AIM: To compare visual performance of wavefront-guided laser in situ keratomileusis (LASIK) with iris-registration (Wg-LASIK group) and conventional LASIK (LASIK group) one year after surgery and analyze the correlation between wavefront aberrations and ...
Jing Zhang +3 more
doaj +1 more source
iSMART Contoura laser-assisted in situ keratomileusis: A new planning software
Indian Journal of Ophthalmology, 2022 Background: Topography guided laser-assisted in situ keratomileusis (LASIK) has always been some sort of an enigma in terms of its understanding and interpretation.
Zain Khatib
doaj +1 more source
Biomolecules, 2023 Practically unknown outside of China, the “endometrial determinism” theory was proposed to account for the apparent gap between the relatively low prevalence of endometriosis and nearly universal retrograde menstruation.
Sun-Wei Guo +2 more
doaj +1 more source
Sensors, 2023 A theoretical approach for reducing multiple monochromatic aberrations using a flat metalens doublet is proposed and verified through ray tracing simulations.
Woojun Han +3 more
doaj +1 more source
DEFINITION LENS DISTORTION CAMERA WHEN PHOTOGRAMMETRIC IMAGE PROCESSING
Вестник Дагестанского государственного технического университета: Технические науки, 2016 In this paper we consider the classical method of calculating the magnitude of the distortion, and the account of its impact on the offset image points on the field image.
S. N. Mamedbekov
doaj +1 more source
Frontiers in Medicine, 2022 PurposeTo investigate the 2-year visual quality of Evolution Implantable Collamer Lens (EVO-ICL) and small incision lenticule extraction (SMILE) for the correction of low myopia.MethodsIn this prospective study, we included 25 eyes of 25 patients (7 men)
Mengjun Fu +26 more
doaj +1 more source
International Journal of Ophthalmology, 2013 AIM: To record aberrations with a corneal topographic device on the anterior surface of the cornea at different time-points prior to wearing and following discontinued use of rigid gas permeable (RGP) contact lenses.
Shi-Qi Dong +5 more
doaj +1 more source
Spatial rainbows and catastrophes in transmission of protons through electrostatic hexapole lens [PDF]
Nuclear Technology and Radiation Protection, 2018 This work reports on the spatial rainbows occurring in transmission of 10 keV protons through hexapole lens. Positive potentials of the lens electrodes are set to be 0.9, 2, and 5 kV.
Telečki Igor N. +4 more
doaj +1 more source