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Showing 1 to 20 of 90 for “"Transport theory"”.
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Optimal transport: theory, algorithms and applications
Optimal transport (OT), which deals with the matching of probability or positive measures, has been originally introduced by Monge in 1781. In particular its linear programming relaxation of Kantorovich in 1942 and the introduction of entropic regularization to OT by Léonard and Cuturi around a …
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Transport theory for scalar quarks and gluons
… work, we have detailed the calculations of the transport and constraint equations for a theory of scalar quarks and gluons with self-interactions. Special care has been taken in particular in understanding how the transport equation, taken on its own, leads to a Boltzmann-like equation when …
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Fluctuation Form of Transport Theory and Its Applications
Made available in DSpace on 2014-12-09T17:36:13Z (GMT). No. of bitstreams: 1 6910709.pdf: 2258095 bytes, checksum: f7fbe0de0c61383d98a9a66d39e2c51d (MD5) Previous issue date: 1968
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A functional analytic approach to multigroup transport theory
A functional Analytic method which was first introduced by Larsen and Habetler for the one-speed isotropic case in 1973 is applied to full and half-space multigroup problems in one dimension with a constant and invertible transfer matrix. The Case-type eigenfunction expansion formulas for the …
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Transport theory of dense gas systems with attractive forces.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 1971
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Mechanism design : from optimal transport theory to revenue maximization
… problem in Economics and Algorithmic Game Theory is the design of auctions that maximize the auctioneer's expected revenue. While optimal selling of a single item has been well-understood since the pioneering work of Myerson in 1981, extending his work to multi-item settings has remained a …
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On multigroup transport theory with a degenerate transfer kernel
The multigroup transport operator is studied in plane geometry assuming that the transfer kernel can be represented in a degenerate form. The eigenvalue spectrum is analyzed constructing the pertinent dispersion matrix in a block matrix form. The associated eigensolutions are obtained in terms of …
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Quantum transport theory of 3D time-reversal invariant topological insulators
… methods to calculate observable, non-equilibrium transport dynamics of real-space topological systems, to propose and identify experimental signatures of topological behavior, and to connect interesting experimental observations to the underlying topological properties in normal, disordered, and …
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Experimental tests of parallel impurity transport theory in Tokamak plasmas
… to existing neoclassical parallel impurity transport theory. This is the first time centrifugal force has been observed to cause a substantial asynnnetry in a plasma with no external monmentumn input and where the flow is entirely self-generated. Magnetically trapped fast ions, sustained by …
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Propagation and scattering of beam waves in vegetation using scalar transport theory
… can be studied effectively by using transport theory. In prior studies, theories have been developed for microwave and mm-wave propagation in vegetation using transport theory for continuous wave and pulsed signals. In this study, the theory has been extended to the more realistic …
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Large-scale dispersive transport in aquifers : field experiments and reactive transport theory
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1987.
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Essays on Optimal Transport Theory and Causal Inference: A Theoretical and Empirical Approach
… perspective to identify the causal impact of transportation on air pollution. The first chapter explores identifying average treatment effects for the treated in the region where the covariate distributions across treatment and control groups have non-overlap support. We make a natural domain …
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Transport-theory-equivalent diffusion coefficients for node-homogenized neutron diffusion problems in CANDU lattices
… core is ideally performed by solving the neutron transport equation for a detailed-geometry model using several tens of energy groups. However, performing such detailed calculations for an entire core is prohibitively expensive from a computational perspective. Full-core neutronic calculations for …
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Functional analytic treatment of linear transport equations in kinetic theory and neutron transport theory
The temperature-density equation of Kinetic Theory and the conservative neutron transport equation are studied. In both cases a modified version of the Larsen-Habetler resolvent integration technique is applied to obtain full-range and half-range expansions. For the neutron transport equation the …
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Transport of elliptic intense charged -particle beams
The transport theory of high-intensity elliptic charged-particle beams is presented. In particular, the halo formation and beam loss problem associated with the high space charge and small-aperture structure is addressed, and a novel transport theory of large-aspect-ratio elliptic beams has been …
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Multiphysics Modelling of Lithium-Ion Batteries
… batteries has been derived using multi-component transport theory to ensure that the resulting model is thermodynamically consistent. The generic transport theory equations are applied to a lithium-ion battery, for which an equation of state and a number of transport laws is required. This allows …
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Mixing And Transport In The Kelvin-Stuart Cat Eyes Driven Flow Using The Topological Approximation Method
Transport rates for the Kelvin-Stuart Cat Eyes driven flow are calculated using the lobe transport theory of Rom-Kedar and Wiggins through application of the Topological Approximation Method (TAM) developed by Rom-Kedar. Numerical studies by Ottino (1989) and Tsega, Michaelides, and Eschenazi …
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Theory of quantum interference in molecular junctions
In recent years, electron transport through single molecules has attracted huge attention, since the molecules are promising building blocks for the next generation of electronic devices. To create molecular junctions and probe their electrical properties, intense experimental efforts and …
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The Asymptotic Development of The Equations of Nuclear Reactor Theory
… expansion of the solution to the neutron transport equation for large near-homogeneous systems which are close to critical. The product of the fundamental unit-cell transport theory eigenfunction and the fundamental cell-homogenized diffusion theory eigenfunction is shown to correspond to …
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