Results 11 to 20 of about 112,180 (285)
Cylindrically and spherically constrained families of non-Keplerian orbits [PDF]
, 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
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Natural and sail-displaced doubly-symmetric Lagrange point orbits for polar coverage [PDF]
, 2012 This paper proposes the use of doubly-symmetric, eight-shaped orbits in the circular restricted three-body problem for continuous coverage of the high-latitude regions of the Earth. These orbits, for a range of amplitudes, spend a large fraction of their
McInnes, Colin, Ceriotti, Matteo
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Asymptotic analysis of displaced lunar orbits [PDF]
, 2009 The design of spacecraft trajectories is a crucial task in space mission design. Solar sail technology appears as a promising form of advanced spacecraft propulsion which can enable exciting new space science mission concepts such as solar system ...
Simo, Jules, McInnes, Colin R.
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The hot orbit: Orbital cellulitis
Middle 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
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Haemangiopericytoma of the orbit [PDF]
Australian 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
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On the stability of displaced two-body lunar orbits [PDF]
, 2010 In a prior study, a methodology was developed for computing approximate large displaced orbits in the Earth-Moon circular restricted three-body problem (CRTBP)by the Moon-Sail two-body problem.
Simo, Jules, McInnes, Colin R.
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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
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Survey of highly non-Keplerian orbits with low-thrust propulsion [PDF]
, 2011 Celestial mechanics has traditionally been concerned with orbital motion under the action of a conservative gravitational potential. In particular, the inverse square gravitational force due to the potential of a uniform, spherical mass leads to a family
Biggs, James +3 more
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New families of non-Keplerian orbits : Solar sail motion over cylinders and spheres [PDF]
, 2014 This paper presents new families of Sun-centered non-Keplerian orbits (NKOs), where the motion of a high-performance solar sail is confined to either a cylindrical or spherical surface.
Heiligers, Jeannette, McInnes, Colin
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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.
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