Results 301 to 310 of about 551,491 (329)
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Mathematical Programming, 2007
We introduce orbital branching, an effective branching method for integer programs containing a great deal of symmetry. The method is based on computing groups of variables that are equivalent with respect to the symmetry remaining in the problem after branching, including symmetry which is not present at the root node.
Ostrowski J +3 more
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We introduce orbital branching, an effective branching method for integer programs containing a great deal of symmetry. The method is based on computing groups of variables that are equivalent with respect to the symmetry remaining in the problem after branching, including symmetry which is not present at the root node.
Ostrowski J +3 more
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The Journal of Chemical Physics, 1979
A new tensor expansion of the orbit–orbit interaction is derived straightforwardly in a form which is compact and completely symmetric in the coordinates of interacting particles. The m-scheme matrix element of the orbit–orbit interaction is then obtained as a concise sum of radial integrals.
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A new tensor expansion of the orbit–orbit interaction is derived straightforwardly in a form which is compact and completely symmetric in the coordinates of interacting particles. The m-scheme matrix element of the orbit–orbit interaction is then obtained as a concise sum of radial integrals.
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ORBITAL EXPANSION FOR ANOPHTHALMIA AND MICRO-ORBITISM
Plastic and Reconstructive Surgery, 1977In severe cases of microphthalmos or anophthalmos, the bony orbital cavity is often too small to allow one to create a satisfactory socket for a prosthesis. An omnidirectional expansion of the orbit, by osteotomies done in a step-like fashion, allows the creation of a larger bony cavity and improves the symmetry of the face. The risks of the craniotomy
Claude Dufourmentel +3 more
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Orbit determination for Lunar Orbiter.
Journal of Spacecraft and Rockets, 1967Orbit determination for Lunar Orbiter, describing computer program and studying Doppler ...
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European Journal of Ophthalmology, 1998
Purpose To warn the ophthalmologist to consider orbital dirofilariasis in the differential diagnosis of inflammatory masses of the orbit. Patients Two cases with non-specific swelling and pain of the orbit who had a initial diagnosis of “inflammatory pseudotumor of the orbit”. Results These are two new cases of orbital dirofilariasis. Conclusion In the
STRIANESE, DIEGO +4 more
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Purpose To warn the ophthalmologist to consider orbital dirofilariasis in the differential diagnosis of inflammatory masses of the orbit. Patients Two cases with non-specific swelling and pain of the orbit who had a initial diagnosis of “inflammatory pseudotumor of the orbit”. Results These are two new cases of orbital dirofilariasis. Conclusion In the
STRIANESE, DIEGO +4 more
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Orbit‐orbit molecular integrals over Gaussian orbitals
International Journal of Quantum Chemistry, 1975AbstractAnalytical formulas are derived for integrals of the orbit‐orbit operator in the Breit‐Pauli Hamiltonian. The present method differs from an earlier one in the introduction of a new auxiliary function Gn(a) which is an integral of Shavitt's Fm(t) function. A method for its evaluation is discussed and some numerical examples are given.
B. W. N. Lo, B. W. N. Lo
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Spacecraft Orbits and Orbital Dynamics
2021The trajectory of a spacecraft’s center of mass in space is called its orbit, which entails physical features such as position, velocity, acceleration, and time. The orbital characteristics of a spacecraft are mainly affected by different factors including its initial kinematic properties, the mechanical environment of space, active control forces, and
Yongchun Xie +3 more
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Orbital angioleiomyoma: A rare orbital neoplasm
Orbit, 2016A 44-year-old male patient presented with painless progressive proptosis of left eye for the last 20 years. Examination revealed a purplish vascular mass extending from the medial orbital region to the surface of the globe. He underwent complete excision of the mass via an anterior orbitotomy approach. Histopathology and immunohistochemistry revealed a
Krishnakumar Subramanian +3 more
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The Value of Orbital Echography in Orbital Practice
Ophthalmic Plastic & Reconstructive Surgery, 1998Twenty-three consecutive patients with orbital masses who were referred to a major medical center and later had biopsies underwent ophthalmic echographic evaluation. The efficacy of orbital echography was compared with both the clinical evaluation and other orbital imaging methods (computed tomography and magnetic resonance imaging).
Bartley R. Frueh +2 more
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Archives of Ophthalmology, 1976
Neurofibromatosis has been reported to involve the eye and orbit by causing irregularities of the sphenoid and other facial bones and enlargement of the foramina. To our knowledge, abnormalities of the orbital floor, however, have not been attributed to this disease in the literature until now.
Judith E. Gurland +3 more
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Neurofibromatosis has been reported to involve the eye and orbit by causing irregularities of the sphenoid and other facial bones and enlargement of the foramina. To our knowledge, abnormalities of the orbital floor, however, have not been attributed to this disease in the literature until now.
Judith E. Gurland +3 more
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