Results 31 to 40 of about 394,445 (282)
Preparation and representation of recombinant Mn-ferritin flower-like spherical aggregates from marine invertebrates. [PDF]
PLoS ONE, 2015 Ferritin has important functions in the transition and storage of toxic metal ions, but its regulation and function in many invertebrate species are still largely unknown.
Liping Chen +6 more
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On the Connection between Spherical Laplace Transform and Non-Euclidean Fourier Analysis
Mathematics, 2020 We prove that, if the coefficients of a Fourier−Legendre expansion satisfy a suitable Hausdorff-type condition, then the series converges to a function which admits a holomorphic extension to a cut-plane. Next, we introduce a Laplace-type transform
Enrico De Micheli
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Spherical distribution vectors [PDF]
, 2002 In this paper we consider a locally compact second countable unimodular group $G$ and a closed unimodular subgroup $H$. Let $\rho$ be a finite dimensional unitary representation of $H$ with closed image.
Helminck, A.G., Helminck, G.F.
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Using Truncated Data Sets in Spherical-Scanning Antenna Measurements
International Journal of Antennas and Propagation, 2012 We discuss the mitigation of truncation errors in spherical-scanning measurements by use of a constrained least-squares estimation method. The main emphasis is the spherical harmonic representation of probe transmitting and receiving functions; however ...
Ronald C. Wittmann +2 more
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A compact spherical RGBD keyframe-based representation [PDF]
2015 IEEE International Conference on Robotics and Automation (ICRA), 2015 — This paper proposes an environmental representation approach based on hybrid metric and topological maps as a key component for mobile robot navigation. Focus is made on an ego-centric pose graph structure by the use of Keyframes to capture the local properties of the scene.
Gokhool, Tawsif +3 more
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3D face recognition with sparse spherical representations [PDF]
Pattern Recognition, 2010 This paper addresses the problem of 3D face recognition using simultaneous sparse approximations on the sphere. The 3D face point clouds are first aligned with a novel and fully automated registration process. They are then represented as signals on the 2D sphere in order to preserve depth and geometry information.
Roser Sala-Llonch +3 more
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REPRESENTATION OF GRADIENTS OF A SCALAR FIELD ON THE SPHERE USING A 2D FOURIER EXPRESSION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 Representation of data on the sphere is conventionally done using spherical harmonics. Making use of the Fourier series of the Legendre function in the SH representation results in a 2D Fourier expression.
M. A. Sharifi, K. Ghobadi-Far
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Redundancy of Triangle Groups in Spherical CR Representations [PDF]
Experimental Mathematics, 2021 Falbel, Koseleff and Rouillier computed a large number of boundary unipotent CR representations of fundamental groups of non compact three-manifolds. Those representations are not always discrete. By experimentally computing their limit set, one can determine that those with fractal limit sets are discrete. Many of those discrete representations can be
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Optimal representation of time-dependent spherical geometries
Graphical ModelsApplications in fields such as fluid mechanics, video games and image processing frequently involve the simulation of 3D objects with spherical topology, with a surface quantity that varies with the geometry and/or according to some surface partial ...
Chiara Sorgentone
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A New Coordinate System for Constructing Spherical Grid Systems
Applied Sciences, 2020 In astronomy, physics, climate modeling, geoscience, planetary science, and many other disciplines, the mass of data often comes from spherical sampling.
Kin Lei, Dongxu Qi, Xiaolin Tian
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