Results 11 to 20 of about 220,364 (241)
Extension of the sun-synchronous Orbit [PDF]
, 2010 Through careful consideration of the orbit perturbation force due to the oblate nature of the primary body a secular variation of the ascending node angle of a near-polar orbit can be induced without expulsion of propellant.
Bosquillon de Frescheville, Francois +9 more
core +4 more sources
Bulk plasma properties at geosynchronous orbit. [PDF]
, 2005 We present a comprehensive study of plasma properties at geosynchronous orbit for electron and ion energies between ∼1 eV and ∼45 keV, between 1990 and 2001.
Liemohn, M. W. +5 more
core +5 more sources
Electrochromic orbit control for smart-dust devices [PDF]
, 2012 Recent advances in MEMS (micro electromechanical systems) technology are leading to spacecraft which are the shape and size of computer chips, so-called SpaceChips, or ‘smart dust devices’.
Colombo, Camilla +3 more
core +4 more sources
On-Orbit Manoeuvring Using Superquadric Potential Fields [PDF]
, 2007 On-orbit manoeuvring represents an essential process in many space missions such as orbital assembly, servicing and reconfiguration. A new methodology, based on the potential field method along with superquadric repulsive potentials, is discussed in this
Badawy, Ahmed
core +5 more sources
Orbital Rhabdomyosarcoma [PDF]
Cancer 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
Orbital Lymphoma Masquerading as Orbital Cellulitis [PDF]
Case Reports in Ophthalmological Medicine, 2021 Background. Orbital lymphomas are primarily non-Hodgkin type and can originate from the eyelids, extraocular muscles, soft tissue orbital adnexa, conjunctiva, or lacrimal glands. Orbital malignancies often represent a diagnostic dilemma for clinicians given their varying and atypical presentations. Objective.
B. D. Chaurasiya +5 more
openaire +3 more sources
Symposium - International Astronomical Union, 1987 Orbits that respect at least three isolating integrals of motion have very special structures in phase space. The main characteristics of this structure are reviewed, and the concrete examples that are provided by orbits in Stäckel potentials, are discussed.
openaire +2 more sources
Performance Evaluation of Machine Learning Methods for Anomaly Detection in CubeSat Solar Panels
Applied Sciences, 2022 CubeSat requirements in terms of size, weight, and power restrict the possibility of having redundant systems. Consequently, telemetry data are the primary way to verify the status of the satellites in operation.
Adolfo Javier Jara Cespedes +3 more
doaj +1 more source
Actinomycosis of the Orbit [PDF]
Ophthalmic Plastic & Reconstructive Surgery, 1992 Actinomycosis is a very rare cause of orbital abscess usually attributable to direct spread from adjacent structures. A case of actinomycosis of the orbit is presented, which was treated as orbital pseudotumour for 3 months before progression of signs and symptoms, despite high dose steroids, led to the diagnosis being reconsidered.
Sullivan, TJ, Aylward, GW, Wright, JE
openaire +5 more sources
Rarefied gas effects on the aerodynamics of high area-to-mass ratio spacecraft in orbit [PDF]
, 2013 The aerodynamic situation of a satellite-on-a-chip operating in low Earth orbit bears some resemblance to a classical Crookes radiometer. The large area-to-mass ratio characteristic of a SpaceChip means that very small surface-dependent forces produce ...
White, Craig +4 more
core +4 more sources