Phillip C. Womble

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Explosives, narcotics and other contraband material contain various chemical elements, such as hydrogen, carbon, nitrogen and oxygen, etc. in quantities and ratios that differentiate them from each other and from other innocuous substances. Neutrons and gamma-rays have the ability to penetrate through various materials to large depths. They are able to(More)
We investigate the spreading of information through Twitter messaging related to the spread of Ebola in western Africa using epidemic based dynamic models. Diffusive spreading leads to NLPDE models and fixed point analysis yields systems of NLODE models. When tweets are mapped as connected nodes in a graph and are treated as a time sequenced Markov chain,(More)
Alexander Larin 1,2, Phillip C. Womble 1 and Vladimir Dobrokhotov 3,* 1 VAON LLC, KY, USA, 2200 Lapsley Lane, Bowling Green, KY 42103, USA; (A.L.); (P.C.W.) 2 Department of Physics and Astronomy, University of Louisville, Louisville, KY 40292, USA 3 Applied Physics Institute, Western Kentucky University,(More)
In this paper, we present a chemiresistive metal oxide (MOX) sensor for detection of hydrogen sulfide. Compared to the previous reports, the overall sensor performance was improved in multiple characteristics, including: sensitivity, selectivity, stability, activation time, response time, recovery time, and activation temperature. The superior sensor(More)
The Cyber Defense Laboratory at Western Kentucky University has established a multidisciplinary research team in order to gain a better understanding of the motives and methods of hackers. This involves the collaboration of computer scientists, network analysts, sociologists, and anthropologists. Most research along these lines to date has been performed by(More)
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