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Opto-electronic class AB microwave power amplifier using photoconductive switch technology
(University of Missouri--Columbia, 2006)
in a phased array radar system is the final power amplifier in each transmit-receive (TR) module. More recent final power amplifiers for TR modules have been configured in the Class AB or push-pull mode with a theoretical efficiency of 78...
Design and analysis of a frequency reconfigurable antenna for wireless communication at 5 GHz
(University of Missouri--Columbia, 2016)
for the designed antenna are 5 GHz and 7 GHz. The directivity obtained for all operational modes were above 6 dBi, while the return losses were above -25 dB. In addition, the simulated results showed a gain above 5.8 dB in all states and the total efficiencies were...
Case study of normal and high glucose laden cell response to cellular phone radiation using GTEM cell
(University of Missouri--Columbia, 2012)
; the frequencies and power respectively represent radiations from a hand held cell phone and the cell phone tower. The simulated return loss and the VSWR values cell from 0 to 4.0 GHz for the GTEM are > 10 dB and < 2, respectively and provided perfect conditions...
Control and characterization of a cyclotron proton beam
(University of Missouri--Columbia, 2010)
and nuclear imaging. The proton beam's energy is 16.5 MeV and the diameter of the beam is approximately 1 mm. A system to control the proton beam's position has been developed by using a magnetic coil. The position of the beam can be controlled to move...
Characterization and MEMS applications of nanothermite materials
(University of Missouri--Columbia, 2010)
progressed from basic nanothermite combustion characterization to application specific testing of microchip devices. The nanothermite powders were initially characterized in a shock-tube system to demonstrate the production of shock waves. Then a microchip...
Clustering in relational data and ontologies
(University of Missouri--Columbia, 2010)
This dissertation studies the problem of clustering objects represented by relational data. This is a pertinent problem as many real-world data sets can only be represented by relational data for which object-based clustering algorithms...
Design and construction of helmholtz coil for biomagnetic studies on soybean
(University of Missouri--Columbia, 2008)
A Helmholtz coil with a large usable area of uniform field was designed, constructed and characterized, specifically for bioelectric studies. The design and analysis of the coil were carried out through experiments and the use of industry standard...
MEMS biosensor for detection of Escherichia coli O157:H7 in food products
(University of Missouri--Columbia, 2011)
Escherichia coli O157:H7, is one of the most common pathogens that has caused several outbreaks in recent years. In 2010-11 there were 5 outbreaks of E.coli and thousands were victim of it. Thus there is an immediate need for sensors capable...
Advanced nanodielectric material development and scaling for use in compact ultra-high voltage capacitor prototypes
(University of Missouri--Columbia, 2019)
The dielectric material employed in this effort is a proprietary nanocomposite material, MU100. The material was initially developed to shrink high frequency, high voltage, dielectric loaded antennas; however, due to its unique material...
Advances in automated surgery skills evaluation
(University of Missouri--Columbia, 2021)
Training a surgeon to be skilled and competent to perform a given surgical procedure, is an important step in providing a high quality of care and reducing the risk of complications. Traditional surgical training is carried out by expert surgeons...
Design of a single sided linear induction motor (SLIM) using a user interactive computer program
(University of Missouri--Columbia, 2005)
This project studies the design of SLIM, which can be used to power capsules in a pneumatic capsule pipeline (PCP) system. The design equations of the SLIM and the equivalent circuit model are studied and discussed in detail. A SLIM of specified...
Impedance and plasmonic based MEMS sensors for chemical and biological applications
(University of Missouri--Columbia, 2020)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI-COLUMBIA AT REQUEST OF AUTHOR.] The first project is implementing a biosensor for simultaneous detection of Salmonella serogroups. Foodborne pathogens cause millions of infections annually...
Channel modeling, estimation and equalization in wireless communication
(University of Missouri--Columbia, 2005)
information. Besides, antenna diversity is another promising technique implemented practically to improve the system performance provided that the channels of antennas are not correlated. A new three dimensional multiple-input multiple-output abstract model...
Microfabricated devices for single cell analysis
(University of Missouri--Columbia, 2006)
BioMEMS or lab-on-a-chip technology is promising technology and enables the possibility of microchip devices with higher throughput or better performance for single cell analysis. This technology is developed from the microfabrication technology...
Deep learning based solutions to biomedical image analysis problems of the upper aerodigestive tract
(University of Missouri--Columbia, 2020)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI--COLUMBIA AT REQUEST OF AUTHOR.] Clinical and scientific studies produce an abundance of image and video data. Clinical practice often relies on subjective, qualitative interpretation of image...
Explainable data fusion
(University of Missouri--Columbia, 2021)
The recent resurgence of Artificial Intelligence (AI), specifically in the context of applications like healthcare, security and defense, IoT, and other areas that have a big impact on human life, has led to a demand for eXplainable AI (XAI...
Linguistic summarization of human activity
(University of Missouri--Columbia, 2010)
of the proposed work include the generation of human interpretable confidence values, improved rejection of unknown activity, information reduction, complexity management, and the recognition of adverse events. Specifically, a computer vision-based hierarchical...
Personalized functional health and fall risk prediction using electronic health records and in-home sensor data
(University of Missouri--Columbia, 2021)
obtained from TigerPlace, a senior living facility at Columbia, MO. The de-identification of this data was done using custom automated algorithms. The de-identified EHR data was used in several studies described in this dissertation. We then developed...
Asymptotically efficient estimators for geometric shape fitting and source localization
(University of Missouri--Columbia, 2013)
be the optimum position to place the calibration emitter. When the optimum calibration source position may be of theoretical interest only, a practical suboptimum criterion is developed which yields a better calibration emitter position than the closest...
Laser target triggering of gas switches
(University of Missouri--Columbia, 2008)
Laser target triggering has been investigated at the University of Missouri as a method to reduce the laser energy required to trigger a laser triggered gas switch. Laser targets were solid materials embedded into the cathode of a LTGS that acted...