Global ETD Search
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 78 for “"Finite length"”.
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Analysis of Finite Length, Circular, Encased, Viscoelastic Cylinders
Made available in DSpace on 2014-12-05T20:34:23Z (GMT). No. of bitstreams: 1 6202942.pdf: 4047829 bytes, checksum: 721bf40a402ddf3130fe318100ccf102 (MD5) Previous issue date: 1962
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Vibration suppression in finite length marine cable systems
… on absorber location, absorber mass and absorber length. Parametric variation is used to achieve maximum effectiveness of the flexible in-line absorber. Even under optimum conditions, it is shown that the absorber provides insufficient damping to reduce vortexinduced vibrations in water. The same …
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Micromechanics of finite length fibers in composite materials
… caused by fiber-fiber interaction at the ends of finite length fibers or fractured fibers is also presented. This theoretical development includes the significant dependence of stress redistribution on fiber volume fraction, constituent properties, and crack size. Therefore, its use is not limited …
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On lower bounds for the betti numbers of finite length modules
In this manuscript we consider multigraded modules. Chapter 1 gives the necessary definitions and examples that develop the theory of multigraded modules. A multigraded module has a multigraded minimal resolution. We give the necessary conditions for a matrix to correspond to a multigraded map and …
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Extracting classical information from quantum states : fundamental limits, adaptive and finite-length measurements
… channels (the Holevo limit). We also investigate finite-blocklength joint receivers. The ultimate capacity of quantum channels is calculated under the assumption that an infinite number of quantum states can be collectively measured in one shot. However, this assumption becomes the primary barrier …
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Acoustic scattering by axisymmetric finite-length bodies with application to fish : measurement and modeling
… the complexities of acoustic scattering by finite bodies in general and by fish in particular through the development of an advanced acoustic scattering model and detailed laboratory acoustic measurements. A general acoustic scattering model is developed that is accurate and numerically …
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Acoustic scattering by axisymmertic finite-length bodies with application to fish : measurement and modeling
… the complexities of acoustic scattering by finite bodies in general and by fish in particular through the development of an advanced acoustic scattering model and detailed laboratory acoustic measurements. A general acoustic scattering model is developed that is accurate and numerically …
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Longitudinal Wave Propagation in Liquid Lines of Finite Length Including the Effect of Nonlinear Boundary Conditions
Made available in DSpace on 2015-05-12T21:43:44Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7013507.PDF: 545638 bytes, checksum: 9a6c27b0792a3aac52fec670c06d704b (MD5) Previous issue date: 1969
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Solution of the Finite Length Septum Problem by Scattering Matrix Techniques, With Application to Periodic Mode Suppressors
Made available in DSpace on 2014-12-08T22:24:03Z (GMT). No. of bitstreams: 1 6706612.pdf: 3745430 bytes, checksum: 45eff9be99b0d135671ea701b33f90df (MD5) Previous issue date: 1966
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A study of magnetic non-linearity and finite length effects in solid iron subjected to a travelling MMF wave
… of the effects of magnetic non-linearity and finite length on the loss and field distribution in solid iron due to a travelling mmf wave. In the first half of the thesis, a two-dimensional solution is developed which accounts for the effects of both magnetic non-linearity and eddy-current …
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Error Floor Analysis of Quasi-Cyclic LDPC and Spatially Coupled-LDPC Codes and Construction of Codes with Low Error Floor
… first, we analyze the error floor performance of finite-length protograph-based spatially coupled LDPC codes in terms of their design parameters. We conduct a comprehensive analysis to show that the parameter syndrome former memory plays the main role in the average number of cycles and trapping …
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Code-division multiplexing
… is generated by modulating a periodic stream of finite-length chip pulses with a receiver-specific signature code that is derived from a special class of binary antipodal, superimposed recursive orthogonal code sequences. With the imposition of practical pulse shapes for carrier modulation, we …
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Blind Channel Estimation and Multiuser Detection for Multi-Rate CDMA Communications
… the context of multicarrier DS/CDMA, based on a finite-length truncation approximation on the band-limited chip waveform, blind timing acquisition and channel estimation scheme is proposed for multi-rate systems. The channel estimation error due to the finite-length chip waveform truncation is …
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The Study of Turbo Codes and Iterative Decoding
… estimate of the average BER performance of the finite-length turbo codes in the form of a lower bound. The amount of computation needed to obtain the lower bound is much less than a full simulation of the iterative turbo decoding. Based on the proposed methodologies, we discuss the guideline for …
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Phase and Microstructural Stability in Immiscible Binary Alloys Under Irradiation
… mixing, phase separation takes place at a finite-length scale, of the order of the nanometer, in agreement with our theoretical predictions. This spontaneous nanoscale decomposition demonstrates that ion-beam mixing can be used as a processing tool for the synthesis of nanocomposite …
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Robustness in large-scale random networks
… of each node is the same, and consider the length of primary and backup paths in terms of the number of hops. First, for a randomly picked pair of nodes, we derive a lower bound on the average distance between the pair and discuss the tightness of the bound. In addition, noting that primary …
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Approximate analytical solutions for modeling subsurface flow
… flow of water in a homogeneous soil column of finite length with arbitrary initial conditions. The boundary conditions considered at the soil surface correspond to pre-ponding and post-ponding infiltration.
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Computation of the one-dimensional unwrapped phase
… Fourier transform (DTFT) of a one-dimensional finite-length signal is explored. The phase of the DTFT is not unique, and may contain integer multiple of 27r discontinuities. The unwrapped phase is the instance of the phase function chosen to ensure continuity. This thesis presents existing …
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Molecule transport in nanopores with applications to water purification, power generation and disease diagnosis
… and diameter of pores in ultrathin graphene and finite-length carbon nanotubes (CNTs) using Green-Kubo relations and molecular dynamics (MD) simulations. The corrected HP (CHP) theory, successfully predicts the permeation rates from non-equilibrium MD pressure driven flows. The previously …
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