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 603 for “"Sinusoidal"”.
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Digital Harmonic-Cancelling Sinusoidal Signal Synthesis
Sinusoidal signal synthesizers are essential modules in a variety of electronic applications, such as communication systems, calibration and verification of analog/mixed-signal integrated circuits (ICs), and lab-on-chip medical/material analyzers. For several decades, researchers have worked on …
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Influence of sinusoidal motion on Stirling engines
… due to the operation of Stirling engines using sinusoidal motion and quantities this reduction. A discrete model was developed to perform an isothermal analysis of a 100cc alpha-type Stirling engine with a 90_ phase angle offset, to demonstrate the impact of sinusoidal motion on the net work and …
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Modeling magnetic core loss for sinusoidal waveforms
Among the challenging unsolved technical problems that have plagued the minds of scientist and engineers throughout the 20th and 21st century is the development of a quantifiable model to accurately estimate or explain Core Power Losses (CPL). Theoretical advances in magnets led to many model …
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Vortices in sinusoidal shear, with applications to Jupiter
… the existence of vortex steady states in a sinusoidal background shear flow in a 1.75 layer quasi-geostrophic model. Trying to find vortex structures by integrating the Hamiltonian system has the drawback that the vortices lose enstrophy by filamentation and numerical dissipation, while …
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The Propagation of Current Along Infinite Sinusoidal Tapes
Made available in DSpace on 2014-12-08T22:23:46Z (GMT). No. of bitstreams: 1 6511789.pdf: 2803808 bytes, checksum: b122271f850ea94ce7ad0053e8665d51 (MD5) Previous issue date: 1965
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Circumferentially sinusoidal stress and strain in helicoidal shells.
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1970.
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Vortices in sinusoidal shear, with applications to Jupiter
… the existence of vortex steady states in a sinusoidal background shear flow in a 1.75 layer quasi-geostrophic model. Trying to find vortex structures by integrating the Hamiltonian system has the drawback that the vortices lose enstrophy by filamentation and numerical dissipation, while …
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Liquid phase crystallized silicon on sinusoidal textured glass substrates
… stable front surface textures using hexagonal sinusoidal nanotextures are studied for application in state-of-the-art liquid phase crystallized silicon thin-film solar cells. The findings may be used to develop improved cell designs and to gain substantial insights on the liquid phase …
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A Self-Saturating Magnetic Amplifier With Sinusoidal Control Current
Made available in DSpace on 2014-12-04T21:02:41Z (GMT). No. of bitstreams: 1 0009158.pdf: 4506789 bytes, checksum: bd26ad156c6747ab5340955a860ea5cf (MD5) Previous issue date: 1954
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Enhancement of noise-corrupted speech using sinusoidal analysis-synthesis
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Implementation of a High-speed Sinusoidal Encoder Interpolation System
… system. In many brushless motor applications, sinusoidal encoders have significant advantages over square-wave encoders. Signal processing techniques for sinusoidal encoder feedback signals are considered in the context of a brushless motor positioning system. In particular, a method is …
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Propulsion By Sinusoidal Locomotion: A Motion Inspired By Caenorhabditis Elegans
Sinusoidal locomotion is commonly seen in snakes, fish, nematodes, or even the wings of some birds and insects. This doctoral thesis presents the study of sinusoidal locomotion of the nematode C. elegansin experiments and the application of the state-space airloads theory to the theoretical forces …
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Prediction of Transient Response of Nonlinear Servomechanisms by Sinusoidal Analysis
Made available in DSpace on 2014-12-04T21:02:35Z (GMT). No. of bitstreams: 1 0007831.pdf: 5560548 bytes, checksum: 542125e597532d54109384d565572c18 (MD5) Previous issue date: 1954
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Sinusoidal Analysis of Hysteresis Effects in Nonlinear Feedback Control Systems
Made available in DSpace on 2014-12-04T21:03:19Z (GMT). No. of bitstreams: 1 6101616.pdf: 3194447 bytes, checksum: c94460df6b6e5d7cd7c5f3c3ec50f14e (MD5) Previous issue date: 1961
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Non-Sinusoidal Current -Phase Relations in Superconductor-Ferromagnet-Superconductor Josephson Junctions
We have directly measured the current-phase relation (CPR) of a superconductor-ferromagnet-superconductor (SFS) Josephson junction, and determined that it contains a positive second-harmonic term proportional to sin(2&phis;). The second-harmonic term becomes dominant near Tpi, the temperature at …
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Acoustic landmark detection and segmentation using the McAulay-Quatieri Sinusoidal Model
… algorithm using the McAulay-Quatieri Sinusoidal Model, in hopes of improving the performance of the recognizer in noisy conditions. We first discuss the sinusoidal model representation, in which rapid changes in spectral components are tracked using the concept of "birth" and "death" …
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The effects of non-sinusoidal wave forms on incandescent lamp characteristics
A. <u>Objectives</u>. After a careful consideration of the problems involved, the writer formulated the following objectives: (1) To determine the variation of lamp characteristics with life for various wave forms. (2) To determine the variation of lamp characteristics with voltage for various wave …
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Analytical and experimental study of FRP honeycomb sandwich panels with sinusoidal core
… that FRP honeycomb sandwich panels with sinusoidal core can be effectively and economically used for highway bridge deck systems. In this study, analytical and experimental characterizations are presented for a FRP honeycomb panel with sinusoidal core geometry in the plane and extending …
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