Results 11 to 20 of about 109,132 (281)

Observational data and orbits of the comets discovered at the Vilnius Observatory in 1980–2006 and the case of the comet 322P

open access: yesOpen Astronomy, 2022
This article is devoted to the discovery of comets at the Vilnius Observatory together with the orbital analysis of dynamically interesting comets, namely 322P. We studied the orbital evolution of comet 322P with and without non-gravitational effects. It
Włodarczyk Ireneusz, Černis Kazimieras
doaj   +1 more source

Analysis of Scattering Angle Sampling by Multi-Angle Imaging Polarimeters for Different Orbit Geometries

open access: yesFrontiers in Remote Sensing, 2022
Per the 2017–2027 Decadal Survey for Earth Science and Applications from Space, many resources are being dedicated to identifying the most cost-effective and appropriate space-based approaches to aid in answering important questions related to the roles ...
Sabrina N. Thompson   +5 more
doaj   +1 more source

SQUARE2: Spacecraft in QUAdrature for Solar Exploration—A Mission Concept for Synergetic Observations of the Sun and Heliosphere

open access: yesFrontiers in Astronomy and Space Sciences, 2022
SQUARE2 is the acronym for Spacecraft in QUAdrature for solaR Exploration, and is a mission concept for multi-instrumental two-point observations of the Sun and its environment. It stems from the need to have two probes that are systematically in orbital
D. Telloni
doaj   +1 more source

The hot orbit: Orbital cellulitis

open access: yesMiddle East African Journal of Ophthalmology, 2012
Orbital cellulitis is an uncommon condition previously associated with severe complications. If untreated, orbital cellulitis can be potentially sight and life threatening. It can affect both adults and children but has a greater tendency to occur in the pediatric age group. The infection most commonly originates from sinuses, eyelids or face, retained
Chaudhry, Imtiaz A.   +2 more
openaire   +3 more sources

Evolution of ambiguous numbers under the actions of a Bianchi group

open access: yesJournal of Taibah University for Science, 2020
In this paper we study some combinatorial properties of biquadratic irrational number field ${\mathbb{Q}}( {i,\sqrt{3} } ) $, under the action of a Bianchi group ${\Gamma _3} = PSL({2,{O_3}} ) $.
Awais Yousaf   +3 more
doaj   +1 more source

New periodic orbits in the solar sail restricted three body problem [PDF]

open access: yes, 2008
In this paper we consider periodic orbits of a solar sail in the Earth-Sun restricted three-body problem. In particular, we consider orbits which are high above the ecliptic plane, in contrast to the classical Halo orbits about the collinear equilibria ...
Biggs, J.D., Waters, Thomas, McInnes, C.
core   +3 more sources

Haemangiopericytoma of the orbit [PDF]

open access: yesAustralian and New Zealand Journal of Ophthalmology, 1992
AbstractOrbital haemangiopericytomas are ideally managed by complete surgical excision in the first instance. This is frequently not achieved, because difficulty in making the diagnosis preoperatively results in incisional biopsy and the highly vascular nature of the tumour makes complete excision difficult.
Sullivan, TJ   +5 more
openaire   +5 more sources

Magnetized and Magnetically Charged Particles Motion around Regular Bardeen Black Hole in 4D Einstein Gauss–Bonnet Gravity

open access: yesUniverse, 2022
In this paper, we study the horizon properties and scalar invariants of the spacetime around a regular black hole (BH) in 4D Einstein Gauss-Bonnet (4D EGB) gravity.
Javlon Rayimbaev   +4 more
doaj   +1 more source

Cylindrically and spherically constrained families of non-Keplerian orbits [PDF]

open access: yes, 2013
This paper introduces new families of Sun-centered non-Keplerian orbits (NKOs) that are constrained to a three-dimensional surface such as a cylinder or sphere. As such, they are an extension to the well-known families of two dimensional NKOs.
Heiligers, Jeannette, McInnes, Colin
core   +3 more sources

Orbital Rhabdomyosarcoma [PDF]

open access: yesCancer Control, 2004
Although rhabdomyosarcoma (RMS) is a rare tumor among the entire group of mesenchymal malignancies, it is a relatively common lesion and significant challenge for the ocular oncologist in terms of its diagnosis and management.A comprehensive literature search of articles published over the past 30 years in PubMed was conducted.Orbital RMS usually ...
Karcioglu, Zeynel A.   +3 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy