School of Engineering & Computer Science: Recent submissions
Now showing items 1-20 of 197
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Direct rheological characterization of polymer and polymer composite filament used in fused filament fabrication additive manufacturing.
(2018-11-28)Understanding the behavior of polymer melt flows is important for predicting final part quality and improve processing performance, particularly in Fused Filament Fabrication (FFF) Additive Manufacturing (AM). There are ... -
Damage accumulation of bovine bone under chaotic and variable amplitude loading.
(2018-11-19)Stress fractures are a common occurrence that can be detrimental to an athlete’s career. At present, there is no method for early detection of stress fractures. This study is a continuation of the pilot study to determine ... -
A photogrammetric method for measuring transient frost surface roughness.
(2018-11-26)Cold-soaked fuel frost (CSFF) is a form of aircraft wing contamination that results in aerodynamic degradation. Unless a certification exemption for a specific aircraft model is provided by the FAA, an operator of an ... -
Correlation of skin friction and convective heat transfer on surfaces with realistic roughness variations.
(2018-11-13)Ice accretions can considerably degrade the in-flight performance and safety of an aircraft. Increases in aerodynamic drag and decreases in lift and stall angle of attack limit aircraft maneuverability, and can destabilize ... -
Ambiguity function magnitude inversion and applications of morphological dilation in POCS.
(2018-11-15)This dissertation examines morphological dilation for applications in Projection onto Convex Sets (POCS) as well as the inversion of ambiguity function magnitude. In general, POCS solvers implement Least-Squares (LS) ... -
Evaluating approaches to detecting ice accretion in and around turbofan jet engines.
(2018-07-19)The accumulation of ice crystals in the compressor stages of a jet engine causes power loss events during flight that could potentially become catastrophic. The electromagnetic properties of ice clouds make them nearly ... -
Robust and efficient methods for proton computed tomography.
(2018-07-23)Proton computed tomography (pCT) is a recent promising imaging modality with the goal of generating accurate 3D maps of relative stopping power (RSP) with respect to water. Since the early developments of this imaging ... -
Circuit optimization and frequecny agility for cognitive radar.
(2018-04-27)Due to the increased demand on the spectrum, radars are in increased stress to participate in dynamic spectrum allocation. Therefore, the next generation radar will be an adaptable cognitive radar. This type of radar will ... -
Semi-supervised learning for electrocardiography signal classification.
(2018-04-24)An electrocardiogram (ECG) is a cardiology test that provides information about the structure and function of the heart. The size of the ECG data collected from patients can be very large, and the data analysis is tedious. ... -
Modal analysis of aerospace and geophysical boundary layers.
(2018-04-20)A linear stability code was written and used to calculate the stability of surface and bottom Ekman layers. Then, the stability of a water column containing both a surface and bottom Ekman layer was calculated to investigate ... -
Effect of inlet hole geometry on surface film cooling effectiveness from compound angle, shaped holes.
(2018-01-05)The gas turbine engine operates at temperatures that far exceed the melting point of the metals from which they are made. Cooling air from the high pressure compressor must be used to cool the components in the hot sections ... -
A method for replicating ice accretion roughness using multi-scale analog distributions.
(2018-03-23)A new approach of creating an analog surface for a surface with natural roughness is presented based on the hypothesis that the dominant skin friction and heat transfer augmentation mechanisms are 1) the vortex shedding ... -
A neural inspired grid cell aid for robot intertial navigation.
(2018-05-08)Accurate position information is needed for a robot's guidance and control systems. Therefore, the navigation system is foundational for a robot's interactions with the world. This thesis explores a biologically inspired ... -
Classification of human head motion patterns using creeping wave propagations.
(2018-04-06)Wearable electronics are continually being developed for a multitude of applications like remote health monitoring, personal activity tracking, and gaming. To design efficient wireless communication between multiple on-body ... -
Circuit modeling and optimization techniques for next-generation radar.
(2018-04-24)Spectral emission requirements for radar systems are becoming increasingly strict. Future radar systems will require well-designed, reconfigurable circuitry to coexist with the myriads of wireless devices using the spectrum. ... -
Joint circuit and waveform optimization for next-generation radar.
(2018-04-17)Due to congested wireless radio spectrum, next-generation radar transmitters will need to be adaptive and reconfigurable in real time to share spectrum with wireless communication devices. Typical system optimization methods ... -
Can changing running shoes immediately reduce the risk of tibial stress fractures?
(2018-04-23)Running is becoming a more popular sport worldwide however many runners suffer from tibial stress fractures (TSF). While there are various kinematic, kinetic, and anthropometric risk factors associated with TSF, it is ... -
Classification of human body activities using low profile wearable antennas.
(2018-04-16)Monitoring human body activities has long been of interests because of their important applications in human–computer interfacing, virtual control, computer gaming, and medical care industries etc. Traditional methods, ... -
Power-amplifier optimization using tunable circuitry and stability analysis methods for the next generation radar.
(2018-04-17)In response to the increasingly congested and contested wireless spectrum, the next generation radar must be adaptive and reconfigurable. A reconfigurable power amplifier is a necessary component of the cognitive radar ... -
Chalcogenide-glass negative curvature fibers.
(2018-04-05)Hollow-core negative curvature fibers have drawn lots of attention due to their attractive properties, including a low transmission loss, a wide transmission bandwidth, low power ratio in the glass, and a simple structure. ...