Two-parametric motions in $E_3$ [PDF]
Gestützt auf die Theorie der Lie'schen Gruppen und der zugehörigen Lie'schen Algebren werden als Einführung lokale und globale Eigenschaften mehrdimensionaler Bewegungen in Vektorräumen und p- parametrige Bewegungen im n-dimensionalen euklidischen Raum \(E_ n\) betrachtet.
Karger, Adolf
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Multiple-task motion planning of non-holonomic systems with dynamics [PDF]
This paper addresses the motion planning problem in non-holonomic robotic systems. The system's kinematics and dynamics are represented as a control affine system with outputs.
A. Ratajczak, K. Tchoń
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Generalized Schwarzian mechanics
A coordinate transformation is proposed which allows one to construct new variants of Schwarzian mechanics from the SL(2,R)-invariant models in the work by Baranovsky (2017) [10].
Sergei Filyukov, Ivan Masterov
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Method of parametric analysis of reciprocating electric generators with permanent magnets
A method for the parametric analysis of electric generators of reciprocating motion with permanent magnets has been developed, which allows revealing the values of the parameters of the magnetic circuit (cross-sectional area) and the working winding ...
A. B. Menzhinski +2 more
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Comparison of range of motion of lower limb joints in individuals with and without overweight [PDF]
Objective: The aim of this study was to compare the range of motion of lower limb joints in overweight and obese individuals. Methods: The statistical population of the present study consisted of 25 to 45 years old working and available women in Zanjan ...
Fatemeh Rezaei Tabar +1 more
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The Darboux theorem on plane trajectories of two-parametric space motions [PDF]
In dieser Arbeit wird eine vollständige Klassifikation der zweiparametrigen Bewegungen, bei denen mindestens fünf Punkte in Bahnebenen laufen, gegeben. Sie baut dabei wesentlich auf einer Arbeit von G. Darboux auf, in der neben einem expliziten Beispiel für eine solche Bewegung vor allem der Beweis dafür gegeben wird, daß bei einer derartigen Bewegung ...
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A Contribution to Avalanche Dynamics: A Formal and an Exact Solution of the Voellmy/Perla Two-Parametric Equation of Motion (Abstract only) [PDF]
The two-parameter equation of motion for snow avalanches proposed by Voellmy in 1955 was later formally derived by Perla in 1979. It has been the object of numerous investigations, mainly to its applications. It has been solved for tracks approximated by straight lines, and this solution has, in some countries, been used extensively with a two-segment ...
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THE LOGARITHMIC SPIRAL AND ITS SPHERICAL COUNTERPART
Logarithmic spirals are isogonal trajectories of pencils of lines. From a series of geometric consequences, we pick out a few which are relevant for kinematics: When a logarithmic spiral rolls on a line, its asymptotic point traces a straight line. Hence,
Hellmuth Stachel +2 more
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Parametric Design of a Finger Rehabilitation Mechanism with Double Action and Two Degrees of Freedom
The objective of this work is to design a rehabilitation mechanism for the index finger that can replicate the finger’s natural movements in the sagittal plane; this mechanism must also be able to adapt to an individual’s anthropometric dimensions.
Iyari Alejandro Nava-Téllez +3 more
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MR-based motion correction for cardiac PET parametric imaging: a simulation study
Background Both cardiac and respiratory motions bias the kinetic parameters measured by dynamic PET. The aim of this study was to perform a realistic positron emission tomography-magnetic resonance (PET-MR) simulation study using 4D XCAT to evaluate the ...
Rong Guo +5 more
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