Current Search:  Fourier transformations (x)

View All Items

  • CSV Spreadsheet
(1 - 6 of 6)
Non redundant spatiotemporal array for time average fourier telescopy applications
Title
Non redundant spatiotemporal array for time average fourier telescopy applications.
Creator
Pava, Diego F., Rhodes, William T., Graduate College
Date Issued
2013-04-12
PURL
http://purl.flvc.org/fcla/dt/3361950
Subject Headings
Fourier transform optics, Optics--Research
Format
Document (PDF)
Fourier telescopy test system
Title
Fourier telescopy test system.
Creator
Randunu-Pathirannehelage, Nishantha, Torres Moreno, Yezid, Rhodes, William T., Graduate College
Date Issued
2013-04-12
PURL
http://purl.flvc.org/fcla/dt/3361948
Subject Headings
Fourier transform optics, Imaging systems, Remote sensing
Format
Document (PDF)
Experimental study of flow over a bundle of cylinders
Title
Experimental study of flow over a bundle of cylinders.
Creator
Khuc, Hiep Hieu., Florida Atlantic University, Su, Tsung-Chow, College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description
The drag reduction by vortex fusion was investigated. A comparison of flow over a bundle of cylinders in uniform and in disturbed currents was performed in a water channel. The model was subjected to cross flow. A thin cylindrical wire located nearby upstream and leveled at half the height of the test model was used as a source of disturbance. A hydrogen bubble technique was utilized to observe the flow pattern. The accumulation of vortices at stagnating regions in front of a bundle of...
Show moreThe drag reduction by vortex fusion was investigated. A comparison of flow over a bundle of cylinders in uniform and in disturbed currents was performed in a water channel. The model was subjected to cross flow. A thin cylindrical wire located nearby upstream and leveled at half the height of the test model was used as a source of disturbance. A hydrogen bubble technique was utilized to observe the flow pattern. The accumulation of vortices at stagnating regions in front of a bundle of cylinders transformed into a counter-rotated curl at leading edges of each leading cylinder in the bundle. Measurements were carried out by a computerized data acquisition system. Drag coefficient measurements, digital spectral and fourier analyses were also performed. Results have shown that a drag reduction can be obtained by introducing a thin cylindrical wire in front of the stagnation.
Show less
Date Issued
1994
PURL
http://purl.flvc.org/fcla/dt/15026
Subject Headings
Vortex-motion, Fluid dynamics, Cylinders, Fourier transformations, Hydrodynamics
Format
Document (PDF)
Using ATR-IR spectroscopy to study the conformation of cell-penetrating peptides
Title
Using ATR-IR spectroscopy to study the conformation of cell-penetrating peptides.
Creator
Fontoura, Luiza, Rezler, Evonne
Date Issued
2012-04-06
PURL
http://purl.flvc.org/fcla/dt/3351389
Subject Headings
Cell-Penetrating Peptides, Antennapedia Homeodomain Protein, Homeodomain Proteins --chemistry, Spectroscopy, Fourier Transform Infrared --methods, Spectrum Analysis, Amides --chemistry, Carrier Progeins
Format
Document (PDF)
Home Range and Habitat Use of Juvenile Green Turtlesin a Shallow Tidal Environment
Title
Plane-Wave Scattering of a Periodic Corrugated Cylinder.
Creator
Garcia, Samuel, Bagby, Jonathan Dr., Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
In this dissertation, a novel approach to modeling the scattered field of a periodic corrugated cylinder, from an oblique incident planewave, is presented. The approach utilizes radial waveguide approximations for fields within the corrugations, which are point matched to approximated scattered fields outside of the corrugation to solve for the expansion coefficients. The point matching is done with TMz and TEz modes simultaneously, allowing for hybrid modes to exist. The derivation of the...
Show moreIn this dissertation, a novel approach to modeling the scattered field of a periodic corrugated cylinder, from an oblique incident planewave, is presented. The approach utilizes radial waveguide approximations for fields within the corrugations, which are point matched to approximated scattered fields outside of the corrugation to solve for the expansion coefficients. The point matching is done with TMz and TEz modes simultaneously, allowing for hybrid modes to exist. The derivation of the fields and boundary conditions used are discussed in detail. Axial and radial propagating modes for the scattered fields are derived and discussed. Close treatment is given to field equations summation truncation and conversion to matrix form, for numerical computing. A detailed account of the modeling approach using Mathematica® and NCAlgebra for the noncommutative algebra, involved in solving for the expansion coefficients, are also given. The modeling techniques offered provide a full description and prediction of the scattered field of a periodic corrugated cylinder. The model is configured to approximate a smooth cylinder, which is then compared against that of a textbook standard smooth cylinder. The methodology and analysis applied in this research provide a solution for computational electromagnetics, RF communications, Radar systems and the like, for the design, development, and analysis of such systems. Through the rapid modeling techniques developed in this research, early knowledge discovery can be made allowing for better more effective decision making to be made early in the design and investigation process of an RF project.
Show less
Date Issued
2017
PURL
http://purl.flvc.org/fau/fd/FA00004819
Subject Headings
Diffractive scattering., Radio frequency integrated circuits., Electromagnetic waves--Mathematical models., Electromagnetic waves--Diffraction., Electromagnetic waves--Scattering., Fourier transformations., Electromagnetic theory--Mathematical models.
Format
Document (PDF)
Plane-Wave Scattering of a Periodic Corrugated Cylinder
Title
Plane-Wave Scattering of a Periodic Corrugated Cylinder.
Creator
Garcia, Samuel, Bagby, Jonathan, Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
In this dissertation, a novel approach to modeling the scattered field of a periodic corrugated cylinder, from an oblique incident planewave, is presented. The approach utilizes radial waveguide approximations for fields within the corrugations, which are point matched to approximated scattered fields outside of the corrugation to solve for the expansion coefficients. The point matching is done with TMz and TEz modes simultaneously, allowing for hybrid modes to exist. The derivation of the...
Show moreIn this dissertation, a novel approach to modeling the scattered field of a periodic corrugated cylinder, from an oblique incident planewave, is presented. The approach utilizes radial waveguide approximations for fields within the corrugations, which are point matched to approximated scattered fields outside of the corrugation to solve for the expansion coefficients. The point matching is done with TMz and TEz modes simultaneously, allowing for hybrid modes to exist. The derivation of the fields and boundary conditions used are discussed in detail. Axial and radial propagating modes for the scattered fields are derived and discussed. Close treatment is given to field equations summation truncation and conversion to matrix form, for numerical computing. A detailed account of the modeling approach using Mathematica® and NCAlgebra for the noncommutative algebra, involved in solving for the expansion coefficients, are also given. The modeling techniques offered provide a full description and prediction of the scattered field of a periodic corrugated cylinder. The model is configured to approximate a smooth cylinder, which is then compared against that of a textbook standard smooth cylinder. The methodology and analysis applied in this research provide a solution for computational electromagnetics, RF communications, Radar systems and the like, for the design, development, and analysis of such systems. Through the rapid modeling techniques developed in this research, early knowledge discovery can be made allowing for better more effective decision making to be made early in the design and investigation process of an RF project.
Show less
Date Issued
2017
PURL
http://purl.flvc.org/fau/fd/FA00004819a
Subject Headings
Diffractive scattering., Radio frequency integrated circuits., Electromagnetic waves--Mathematical models., Electromagnetic waves--Diffraction., Electromagnetic waves--Scattering., Fourier transformations., Electromagnetic theory--Mathematical models.
Format
Document (PDF)