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Electromagnetic Characterization Of Af455 With Dna-Ctma In Solvent Blends, Jessica Marie Hendricks
Electromagnetic Characterization Of Af455 With Dna-Ctma In Solvent Blends, Jessica Marie Hendricks
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This work studies the electromagnetic properties of AF455, a two photon dye, DNA bound with cetyltrimethyl ammonium (CTMA), in liquid solvent blends for use in thin film optical filters. The liquid properties of the materials are believed to be transferred to the films. The solvent blends used are ratios of toluene (T) and dimethyl sulfoxide (DMSO). The complex permittivity and permeability of the samples are measured using the short open coaxial line technique in the frequency range of 1.0 x 107 Hz to 2.0 x 109 Hz. In this frequency range, AF455 does not act as a two photon absorber. …
Capturing And Modeling A Three-Dimensional Stationary Noise Source Directivity Pattern With A Dynamic Array In The Near Field, Randy Mieskoski
Capturing And Modeling A Three-Dimensional Stationary Noise Source Directivity Pattern With A Dynamic Array In The Near Field, Randy Mieskoski
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The author has studied several legacy landmark methodologies to develop an original measurement technique. Spherical harmonics modeling practices were leveraged to accurately represent a source directivity pattern. In this thesis a lightweight microphone measurement array that was manually maneuvered around a static noise source was employed. The measurement technique consisted of inserting a head-tracker sensor onto the microphone array to allow the location of the captured acoustic Sound Pressure Level (SPL) to be investigated. By leveraging the historical methodologies the acoustic SPL and location data collected with this technique were processes to represent a directivity pattern of the compressor source …