Results 281 to 290 of about 277,866 (307)
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Mathematical Modeling of the Polymer Rotational Molding
Volume 1: Symposia, Parts A and B, 2007We study the rimming flow of a viscoelastic film on the inner surface of a horizontal rotating cylinder. Simple lubrication theory is applied assuming that the Reynolds number is small and the liquid film is thin. For the steady-state flow of the Upper-Convected Maxwell (UCM) fluid the mathematical model reduces to a first order nonlinear ODE for the ...
Sergei A. Fomin +4 more
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Mathematical Precision in Rotational Corrective Osteotomy of the Femur
Journal of Orthopaedic Trauma, 1998We used a mathematical model to determine whether the approach to derotation of the malrotated femur can be improved for use in corrective osteotomy of the femur. Rotational corrective osteotomy of the femur (RCOF) is a procedure performed by orthopedic surgeons to correct congenital femoral torsion deformities and posttraumatic femoral shaft malunions.
T D, Pulisetti +4 more
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[Mathematical model of the rotation of cornea].
Journal francais d'ophtalmologie, 1991The aim of our study is to informatise the procedure, ie, design the computer system and software necessary to automatically define the parameters of our problem. To achieve this, we have used an image analyser which permits us to acquire and digitalise a photograph of the lesioned cornea.
I, Karpouzas, Y, Pouliquen
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Mathematical optimization of rolling stock rotations
2017We show how to optimize rolling stock rotations that are required for the operation of a passenger timetable. The underlying mathematical ptimization problem is called rolling stock rotation problem (RSRP) and the leitmotiv of the thesis is RotOR, i.e., a highly integrated optimization algorithm for the RSRP. RotOR is used by DB Fernverkehr AG (DBF) in
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Molecular Face-Rotating Polyhedra: Chiral Cages Inspired by Mathematics
Accounts of Chemical ResearchConspectusMolecular polyhedral cages, notable for their enclosed inner cavities, can possess varying degrees of symmetry, spanning from regular Platonic polyhedra to lower symmetry forms that may display chirality. Crafting chiral molecular cages typically involves using building blocks containing stereogenic elements or arranging achiral components in
Xue Dong +4 more
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Rotation Technique in Radially Symmetric Electron Micrographs: Mathematical Analysis
Science, 1966The rotation operation of order m operating on a signal removes all spatial frequencies not multiple to m . Anomalous reinforcements, causing misinterpretation, can be discounted without following previously suggested restrictions. The improvement in signal-to-noise ratio is less than
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Isomorphism of Mathematical Descriptions of the Rotation Operation
Mechanics of Solids, 2018Currently the practice of constructing various algorithms of inertial navigation, including strapdown navigation system (SINS), indicates that two mathematical methods for describing rotation are mainly used: using quaternions or direction cosines. Moreover, in SINS algorithms it is often convenient to use two of these parameter systems in parallel ...
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Mathematical Analysis for Rotating Autokeratoplasty, Reply
Cornea, 1992Ioannis Karpouzas, Yves J-M. Pouliquen
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