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Design and analysis of miniaturized implantable and wearable microstrip antennas
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] There is an increasing effort by hospitals, doctors and healthcare service providers to cut down the ever increasing cost of health care. One area of ...
Design, simulation, and analysis of reconfigurable antennas in GHz regime
(University of Missouri--Columbia, 2013)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] This research focuses on the design and analysis of a reconfigurable antenna where the radiation pattern and its characteristics are altered in each ...
Asymmetric quantum well structures for enhanced infrared photon absorption
(University of Missouri--Columbia, 2013)
Compared to inter-band transition for photon absorption in a quantum wells, intra-band (or inter-subband) transitions in heterojunction (GaAs/InP) quantum wells can provide access to a broader range of wavelengths for ...
Design and application of conformal patch antenna for near-field imaging and object detection
(University of Missouri--Columbia, 2013)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Compact and low cost planar and conformal patch antennas were designed, fabricated and analyzed for ultra-wideband characteristics. It was also ...
Design and analysis of a metamaterial with high refractive index at dual band frequencies
(University of Missouri--Columbia, 2012)
The concept of a single frequency band, single high-refractive-index metamaterial has been extended and applied in the design of dual frequency band, dual high-refractive-index metamaterials in the THz regime. The structure ...
Maximizing terahertz pulse amplitude from low temperature gallium arsenide photo conductive semiconductor switch
(University of Missouri--Columbia, 2011)
A signal is produced by the photoconductive action in a PCSS, which travels through the bulk to the metallic contacts and is radiated through the electrodes of the PCSS. The simulation analysis was done for the semiconductor ...
Effects of nano-second pulsed electric fields on human breast cancer cell line-MCF7
(University of Missouri--Columbia, 2011)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Effects of nanosecond pulsed electric fields on the human breast cancer cell line MCF-7 have been investigated for changes in cell number, DNA ...
Optimizing antenna gain with a metamaterial filter
(University of Missouri--Columbia, 2011)
Metamaterials are man-made structures, usually designed by placing electromagnetic resonators, such as split ring resonators (SRRs), in a periodic array. Metamaterials also exhibit lensing properties, and, when placed next ...
Comparison of substrate conditions in low-temperature gallium arsenide and semi-insulating gallium arsenide during terahertz pulse generation
(University of Missouri--Columbia, 2011)
The use of GaAs photoconductive semiconductor switches (PCSS) for generating THz radiation is well known. Both semi-insulating (SI) and Low-temperature (LT) grown Gallium Arsenide (GaAs) have been used. In this research ...
Effects of front and bottom texturings on gallium arsenide solar cell characteristics
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The Gallium Arsenide solar cells are of particular interest in many applications due to its advantages over silicon. Its high absorptivity requires a ...
Characterizing carrier transport in silicon thin film metal semiconductor metal structures
(University of Missouri--Columbia, 2011)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Due to its operational simplicity and ease of fabrication, metal semiconductor metal thin film structures have been the focus of attention for many ...
Case study of normal and high glucose laden cell response to cellular phone radiation using GTEM cell
(University of Missouri--Columbia, 2012)
The primary objective of this dissertation is twofold. First, to study the response of red and white blood cell and normal and high glucose blood to cellular phone radiation exposures at frequencies of 850 and 900 MHz. ...
Comparative study of ballistic transport in Si and GaAs using non equilibrium Green's function formalism
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The simulation study presented in this research has two basic objectives. The first objective is to establish a consistency in the results for quantum ...