Results 71 to 80 of about 885,025 (193)
Near Infrared polarimetry of a sample of YSOs [PDF]
, 2009 Our goal is to study the physical properties of the circumstellar environment of young stellar objetcs (YSOs). In particular, the determination of the scattering mechanism can help to constrain the optical depth of the disk and/or envelope in the near infrared.
arxiv +1 more source
International Medical Case Reports Journal, 2018 Masatoshi Haruta, Hiroyuki Ohshima, Ryoji Yamakawa Department of Ophthalmology, Kurume University School of Medicine, Kurume, Japan Purpose: This study aimed to demonstrate the clinical usefulness of measuring the macular ganglion cell complex (GCC) for ...
Haruta M, Ohshima H, Yamakawa R
doaj
Quality assessment of optic nerve disk images
Mokslas: Lietuvos Ateitis, 2010 Analysis of optic nerve disk is done for different categories of images. Optic nerve disk images of the same eye and of different eyes of good and bad quality are investigated using spectral, histogram, edge parameters.
Viktorija Puzienė, Darius Jegelevičius
doaj +1 more source
Clinical Ophthalmology, 2014 Chee Wai Wong,1,2 Doric Wong,1,2 Ranjana Mathur1,2 1Singapore National Eye Centre, Singapore; 2Singapore Eye Research Institute, Singapore Abstract: A 37-year-old Bangladeshi male presented with an inferotemporal optic disk pit and serous macular ...
Wong CW, Wong D, Mathur R
doaj
Ocular ultrasound findings in optic disk melanocytoma
Revista Mexicana de Oftalmología, 2017 Purpose: To describe the echographic characteristics of optic disk melanocytoma using a high resolution 10–20 MHz ophthalmic ultrasound. Methods: We conducted a 10-year retrospective review finding 9 cases with optic disk melanocytoma.
Andrés Lisker-Cervantes +7 more
doaj +1 more source
Modeling the UBVRI time delays in Mrk 335 [PDF]
, 2006 We develop a model of time delays between the continuum bands in the Narrow Line Seyfert 1 galaxy Mrk 335 to explain the observed delays measured in this source. We consider two geometries: an accretion disk with fully ionized warm absorber of considerable optical depth, located close to the symmetry axis, and an accretion disk with a hot corona.
arxiv +1 more source
Monte-Carlo radiative transfer simulation of the circumstellar disk of the Herbig Ae star HD 144432 [PDF]
, 2015 Studies of pre-transitional disks, with a gap region between the inner infrared-emitting region and the outer disk, are important to improving our understanding of disk evolution and planet formation. Previous infrared interferometric observations have shown hints of a gap region in the protoplanetary disk around the Herbig Ae star HD~144432.
arxiv +1 more source
FEATURE EXTRACTION OF RETINAL IMAGE FOR DIAGNOSIS OF ABNORMAL EYES [PDF]
ICTACT Journal on Image and Video Processing, 2011 Currently, medical image processing draws intense interests of scien- tists and physicians to aid in clinical diagnosis. The retinal Fundus image is widely used in the diagnosis and treatment of various eye diseases such as Diabetic Retinopathy, glaucoma
S. Praveenkumar
doaj
Clinical Ophthalmology, 2016 Zeynep Kayaarasi Öztürker, Kadir Eltutar, Belma Karini, Sezin Özdogan Erkul, Özen Ayrancı Osmanbaşoğlu, Pınar Sultan Ophthalmology Department, Istanbul Research and Training Hospital, Istanbul, Turkey Purpose: To compare optic nerve
Ozturker ZK +5 more
doaj
OPTIC DISK COLOBOMA AND CONTRALATERAL OPTIC DISK PIT MACULOPATHY TREATED BY VITRECTOMY IN A PATIENT WITH NOONAN SYNDROME WITH MULTIPLE LENTIGINES. [PDF]
Retin Cases Brief Rep, 2023 Van den Heurck JJ, Boven KB, Claes CC.
europepmc +1 more source