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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 252 for “"nonuniform"”.
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Nonuniform generalized sampling
… supported L2 functions from finitely many nonuniform samples of their Fourier transform, so-called Nonuniform Generalized Sampling (NUGS). This framework is based on a recently introduced idea of generalized sampling for stable sampling and reconstruction in abstract Hilbert spaces, which …
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Spectral estimation using nonuniform sampling
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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Parameter identification of nonuniform distributed RC networks
… of the unique parameter identification of nonuniform distributed RC networks is addressed in this dissertation. Previous literature provides for the equivalence of distributed networks with respect to the terminal characteristics. Therefore, the question is whether unique parameter …
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Buckling of Plates Subjected to Nonuniform Heating
Made available in DSpace on 2014-12-10T17:25:41Z (GMT). No. of bitstreams: 1 6808050.pdf: 1858394 bytes, checksum: c5941a98f613f0f324f4aa3911ffe11e (MD5) Previous issue date: 1967
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Frequency dependent acoustic transmission in nonuniform materials
… of the acoustic power transmitted through nonuniform materials is developed. Using the ideal mixture model to relate acoustic velocity and impedance, this normalized model demonstrates that the power transmission characteristics are completely determined using only a composition profile and …
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Acoustic Generation by Nonuniform Polarization in Ferroelectric Ceramics
Made available in DSpace on 2015-05-13T15:20:44Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7524332.PDF: 3419372 bytes, checksum: 62b135bc160fd6331af4524f40b56de3 (MD5) Previous issue date: 1975
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Nonlinear analysis of cavitating propellers in nonuniform flow
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1993.
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Breakdown characteristics of nonuniform electric fields in crossflows
… of the breakdown characteristics of the nonuniform electric fields established between two spheres and between two points in a crossflow was conducted and the results were then compared to the breakdown characteristics in quiescent air. The aluminum spheres used in this investigation …
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Applications of nonuniform sampling in wideband multichannel communication systems
This research is an investigation into utilising randomised sampling in communication systems to ease the sampling rate requirements of digitally processing narrowband signals residing within a wide range of overseen frequencies. By harnessing the aliasing suppression capabilities of such sampling …
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Aspects Of Nucleation: Fluctuations, Nonuniform Order, And Curved Surfaces
Transitions between various states of matter occur everywhere and are integral in the processes that make life, as we know it, possible. Given such importance in everyday life, it makes sense that considerable time has been spent looking for theories of these transitions. What makes our modern …
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Kerr electro-optic measurements and nonuniform electric field reconstructions
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
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Two-shock interaction in a region of nonuniform flow
Thesis: M.S., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 1964
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Determining overland flow hydrographs from sections of nonuniform width
… of equilibrium were developed for sections of nonuniform width. In order to determine the dimensionless hydrographs the equations of momentum and continuity were solved implicitly. This method was chosen because it is unconditionally stable independent of the time and distance increment. Using …
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Microwave emission in a plasma filled nonuniform backward wave oscillator
… efficiency in a BWO by either applying a nonuniform slow wave structure (SWS) or using a plasma filling in a BWO, this dissertation focuses on the combined effects both a nonuniform SWS and plasma filling. The particle-in-cell computer simulation conducted in this study revealed the …
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An investigation of nonuniform sampling of band-limited periodic signals.
Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1965. B.S.
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Estimation of Unsteady Nonuniform Heating Rates from Surface Temperature Measurements
… usually involves dynamic transients and severe nonuniformities. Finding this boundary flux from discrete unsteady temperature measurements is characterized by instabilities in the solution. The purpose of this work is to evaluate existing methodologies for the determination of the unsteady heat …
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Coded caching for cache-aided communication and computing with nonuniform demands
… system of multiple cache-enabled users with nonuniform demands. We thoroughly characterize the structure of the optimal cache placement of the coded caching scheme (CCS).We show there are at most three file groups in the optimal placement and obtain the closed-form solution in each file …
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Simulation of viscous fingering during miscible displacement in nonuniform porous media
Numerical simulation is used to study the effect of different factors on unstable miscible displacement and to clarify the mechanisms of finger growth and interaction. The two-dimensional equations of miscible displacement in a rectangular slab are dedimensionalized and the factors that affect …
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Two-dimensional zero-phase FIR filter design with nonuniform frequency sampling
… finite impulse response digital filters with nonuniform frequency samples. Using the freedom and flexibility of the nonuniform frequency sampling, several techniques for taking samples in the frequency plane have been proposed. The design problem is treated as a bivariate interpolation problem …
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