Papers by George Kamberov
A phenomenological model for recombination in the scrape-off- layer of tokamak plasma is proposed... more A phenomenological model for recombination in the scrape-off- layer of tokamak plasma is proposed. Software tools for examination of the model are tested with 1D Particle-in Cell (PIC) simulation of stable plasma in tokamak. The model is validated using global parameters for a 2MW L mode density shot performing 2D calculations of plasma discharge evolution. The role of recombination in
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... 13,5~,z ..-3.71.z2 f 11.63.z 1.75z2 0.3Lp~~ ~ A(z) = B(z) = 1.684--.3.Z5 ~- 5.72.z .J.,59.z... more ... 13,5~,z ..-3.71.z2 f 11.63.z 1.75z2 0.3Lp~~ ~ A(z) = B(z) = 1.684--.3.Z5 ~- 5.72.z .J.,59.z2 12k.z 1,99.52 0.5 LPt ~ik A(z) = B(s) = 0.16 ~- -2.23 + 0.59.z 0.16.z2 7.68.z 0.k4.z2 1. Angelov N. et al,PI.-10513,JINR,1977,Bubna,USSR. 2. AngeLo-v N. et a1.PI-.-9792,,~INR,1976. ...
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The heat and the particle loads on the divertor plates from the plasma in the scrape-off layer (S... more The heat and the particle loads on the divertor plates from the plasma in the scrape-off layer (SOL) are studied in edge localized modes (ELM) with high frequency. For this purpose we have per-formed computer experiments with self-consistent simulation of the neutral particles in the SOL of toka-maks with deuterium plasma assuming different regimes (instant cold and permanent hot gass puffing).
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Data from p , p collision, e+ e, annihilation and deep inelastic scattering are used to check the... more Data from p , p collision, e+ e, annihilation and deep inelastic scattering are used to check the most popular microdynamic models and thermodynamic description of hadron production. The e ect of different models for interpretation of EAS data is discussed in aspect of the chemical composition of primary cosmic rays.
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The problem of scaling of the hadronic production cross sections represents an outstanding questi... more The problem of scaling of the hadronic production cross sections represents an outstanding question in high energy physics especially for interpretation of cosmic ray data. A comprehensive analysis of the accelerator data leads to the conclusion of the existence of breaked Feynman scaling. It was proposed that the Lorentz invariant inclusive cross sections for secondaries of a given type approaches constant in respect to a breaked scaling variable x sub s. Thus, the differential cross sections measured in accelerator energy can be extrapolated to higher cosmic ray energies. This assumption leads to some important consequences. The distribution of secondary multiplicity that follows from the violated Feynman scaling using a similar method of Koba et al is discussed.
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Global isothermic immersions are defined and studied with the aid of a connection between quadrat... more Global isothermic immersions are defined and studied with the aid of a connection between quadratic differentials and immersions. The applications are two problems stemming from the fundamental question: how much data is needed to identify a surface immersion (Christoffel's problem) or its shape (Bonnet's problem). A short complete solution of Christoffel's problem, including closed surfaces, is given. It is shown
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A method for the explicit determination of air shower axis direction is proposed. The idealizatio... more A method for the explicit determination of air shower axis direction is proposed. The idealization of parallel trajectories of shower particles can be explicitly checked for shower events that have been registered by at least three surface detectors. The method is used to analyze detected showers and to determine the origin of each group of detected particles.
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This paper presents results on the extent to which mean curvature data can be used to determine a... more This paper presents results on the extent to which mean curvature data can be used to determine a surface in space or its shape. The emphasis is on Bonnet's problem: classify and study the surface immersions in $\R^3$ whose shape is not uniquely determined by the first fundamental form and the mean curvature function. The properties of immersions with umbilics
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A new technique for computing the differential invariants of a surface from 3D sample points and ... more A new technique for computing the differential invariants of a surface from 3D sample points and normals. It is based on a new conformal geometric approach to computing shape invariants directly from the Gauss map. In the current implementation we compute the mean curvature, the Gauss curvature, and the principal curvature axes at 3D points reconstructed by area-based stereo. The differential invariants are computed directly from the points and the normals without prior recovery of a 3D surface model and an approximate surface parameterization. The technique is stable computationally.
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Proceedings. 2nd International Symposium on 3D Data Processing, Visualization and Transmission, 2004. 3DPVT 2004., 2004
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Lecture Notes in Computer Science, 2002
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Papers by George Kamberov