Security vulnerabilities pose a real threat to computing systems ranging from personal computers to mobile devices and critical systems. Quantification and prediction of vulnerabilities allows us to compare systems, orient and plan to mitigate vulnerabilities, and design reliabl…
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Advancement of porosities that happens in shear deformation of anisotropic materials is investigated by Dr. Kweon. As the hydrostatic stress in shear deformation is zero, in the solid mechanics' researches it is proved several times that porosity will not be expanded in shear de…
The computing needs and the input and result datasets of modern scientific and enterprise applications are growing exponentially. To support such applications, High-Performance Computing (HPC) systems need to employ thousands of cores and innovative data management. At the same …
Electromagnetic shielding is becoming more and more important with the abundance of wireless devices. Therefore a need has arisen for more versatile, flexible and low-cost solutions for shielding. For these requirements, carbon microfiber material has been proposed for electroma…
We investigated the mechanical properties, such as fracture toughness (KIc), fracture energy (GIc), ultimate tensile strength (UTS), Young¡¦s modulus (E), and fatigue crack propagation rate (FCPR) of epoxy-matrix composites with different weight fractions of carbon-based fillers…
This dissertation is mainly focused on assimilation of data into hydrodynamic models of water flow in open channel networks which is motivated by the need for accurate flow models in various applications such as emergency response and flood monitoring systems, automated gate sys…
With the rapid development and popularity of information technology, criminals and mischievous computer users are given avenues to commit crimes and malicious activities. One of the commonly used tactics, called steganography, is to hide information under a cover media so that e…
At the present time, the crash safety of new and concept vehicle designs, i.e., with advanced materials or structure or powertrains, is primarily assessed through computer simulations of single-vehicle crash test protocols specified by existing regulations and consumer informati…
Today’s security systems have been drawing great attentions as cryptographic algorithms have gained popularity due to the nature that make them suitable for use in constrained environment such as mobile sensor information applications, where computing resources and power availab…
Glass fiber reinforced polymer (GFRP) composite sections, manufactured through pultrusion process, are known for their high strength-to-weight ratio, corrosion resistance, low thermal conductivity, electric and magnetic transparency, low life cycle cost and ease of fabrication. …
Silicon and graphite composite anode materials were prepared for a lithium ion half-cell with lithium metal as the reference electrode. All silicon/graphite composite anodes were prepared in the lab with mixing of slurry using ball milling technique. Battery grade copper foil wa…
This research contains two studies. First study investigated one of the factors that affect the performance of pads; the locations of pads relative to glass weave. Dage 4000plus bond tester was used in conducting a joint-level testing of pads on 370HR printed circuit board that …
Using typical FT-based techniques, the mean Doppler frequency estimation using ultra-wideband (UWB) coherent random noise radar signals is inherently poor due to the nature of its probabilistic transmit waveforms and the uncertainty in the velocity distribution characteristics o…
With the growing ubiquity of mobile devices, users are turning to their smartphones and tablets to perform more complex tasks than ever before. Performing computer vision tasks on mobile devices must be done despite the constraints on CPU performance, memory, and power consumpti…
Behavioral pattern prediction has many applications, ranging from consumer buying behavior analysis, web surfing prediction to network attack prediction. The traditional behavioral pattern prediction technique works mainly on a fixed dataset. But recent advances in digital techn…
An SNR estimation approach and a jamming detector based on wavelet transform theory are presented. The SNR estimator is an in-service, non-data aided estimator that operates on M-PSK and QAM modulated signals transmitted over baseband CWGN channels. The signal and noise power ar…
In this thesis, two new types of electrically small feed antennas, slotted circular waveguide feeds, and microstrip dipole feeds are designed and studied for prime focus reflectors. The existing electrically small feeds used in prime focus reflectors exhibit some limitations suc…
Component Based System (CBS) development is increasingly becoming popular for software development. Using components in developing software systems can have a potential benefits such as decrease development cost, increase software productivity, reliability, as well as improve th…