Results 261 to 270 of about 8,826 (305)

Orbit-Orbit Resonance Capture in the Solar System

Science, 1972
A realistic model involving mutual gravitation and tidal dissipation for the first time provides a detailed explanation for satellite orbit-orbit resonance capture. Although applying directly only to Saturn's satellites Titan and Hyperion, the model reveals general principles of resonance capture, evolution, and stability which seem applicable to other
R J, Greenberg, C C, Counselman, I I, Shapiro   +2 more
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Trojan Orbits in Secular Resonances

Celestial Mechanics, 1984
A near equality between the nodal rates of suitably defined Trojan orbits and Jupiter represents an important type of a secular resonance. This case is realized by the model Sun-Jupiter-Saturn-Trojan, referred to the invariable plane. A second theoretical example is based on the elliptic three-body problem Sun-Jupiter-Trojan, where the vanishing nodal ...
R. Bien, J. Schubart
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Magnetic Resonance Imaging of the Orbit

Radiologic Clinics of North America, 1987
Technological advances in MRI have resulted in the ability to obtain thin sections with high resolution; thus, MRI has become a serious competitor to CT in the evaluation of the orbit. MRI permits normal and pathologic anatomy to be visualized with exquisite detail in several planes.
L T, Bilaniuk, S W, Atlas, R A, Zimmerman   +2 more
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Orbital Magnetic Resonance Imaging

American Journal of Ophthalmology, 1985
Magnetic resonance images of the eye and orbit performed with surface coils at 1.5 tesla showed anatomic details superior to those of conventional third- and fourth-generation computed tomography.
R A, Zimmerman, L T, Bilaniuk, M, Yanoff, J F, Schenck, H R, Hart, T H, Foster, W A, Edelstein, P A, Bottomley, R W, Redington, C J, Hardy   +9 more
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Magnetic Resonance Imaging of the Orbit

Seminars in Ophthalmology, 2008
Magnetic resonance imaging (MRI) employs the nuclear resonance phenomenon to produce images of living tissues. Unlike computed tomography (CT), which relies solely on differences in the propensity of tissues to absorb X-rays to produce various contrasts, MRI offers a wide variety of pulse sequences, each of which exploits differences in the magnetic ...
Mark F, Conneely, Lotfi, Hacein-Bey, Walter M, Jay   +2 more
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Magnetic Resonance Imaging of the Orbit

Topics in Magnetic Resonance Imaging, 1994
Magnetic resonance (MR) imaging plays an important role in evaluation of ocular and orbital lesions. Ocular tumors can be distinguished and delineated from adjacent fluid collections. Demonstration of internal septa within a well-defined mass leads to the diagnosis of cavernous hemangioma, whereas vascularity and internal lobulations are the hallmark ...
L T, Bilaniuk, R J, Rapoport
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Final Tidal Evolution of Orbit-Orbit Resonances

Celestial Mechanics & Dynamical Astronomy, 1985
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Theory of satellite orbit-orbit resonance

Celestial Mechanics, 1981
On the basis of the strong mathematical and physical parallels between orbit-orbit and spin-orbit resonances, the dynamics of mutual orbit perturbations between two satellites about a massive planet are examined, exploiting an approach previously adopted in the study of spin-orbit coupling. The satellites are assumed to have arbitrary mass ratio and to
Blitzer, Leon, Anderson, John D.
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Highly delocalized orbiting resonances

The Journal of Chemical Physics, 2008
The Ne–Br2(B,v) intermolecular resonances embedded in the continuum of the v=26 vibrational manifold have been characterized. The nature of these states as long-lived, strongly overlapping orbiting resonances supported by centrifugal barriers originated in rotational excitation of Br2 within the complex has been confirmed.
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Magnetic resonance imaging of orbital tumors

European Radiology, 2006
This contribution provides an overview of diseases of eye and orbit and their appearance on magnetic resonance imaging. In recent years the diagnosis of eye and orbit pathology has profited significantly from increasingly sophisticated technical developments in the field of tomographic methods.
A J, Lemke, I, Kazi, R, Felix
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