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Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
Recent studies have shown that the incorporation of carbon nanotubes (CNT) in to carbon fiber composite parts significantly increase mechanical as well as thermal properties. Polymer nanocomposites are polymer matrix composites that...
High Temperature superconductors (HTS) are the only way to achieve elds with superconducting magnets higher than the 25 T of Low Temperature Superconductors (LTS). No-Insulation (NI) REBCO magnets using REBa2Cu3Ox as the superconductor...
As demand for more efficient and higher-performing aerospace platforms increases there is a need to address challenges that have been left unsolved through a more comprehensive understanding of the complex flowfields and the underlying...
Electric power lines are subject to disturbances such as severe weather conditions, contact with animals, falling trees, human accidents, equipment malfunction, etc. These catastrophic events can trigger an electrical fault, which...
The continual study of shock wave boundary layer interactions (SBLIs) is driven by their presence on the internal and external surfaces of transonic, supersonic, and hypersonic flight vehicles. SBLIs manifest in a myriad of practical...
Fourier transforms form an integral part of most signal processing applications and are therefore a crucial enabler of modern technology. Thus, fast and efficient algorithms to compute the Fourier transform is an area of active research....
In this dissertation, disturbances leading to optimal energy growth in a spatially developing, zero-pressure-gradient turbulent boundary layer are examined. The slow development of the turbulent mean flow in the streamwise direction is...
The following dissertation presents the initial stages of the development of the new rollover safety assessment protocol developed for paratransit buses. Each year, the State of Florida purchases over 300 paratransit buses. In 2011, the...
Polyethylenes with functional groups placed at precise locations along the backbone serve as model systems for studying the effect of co-units on crystallization behavior of polymers. Good thermal stability and high crystallinity...
The Heisenberg Uncertainty principle is a fundamental concept from Quantum Mechanics that also describes the Fourier Transform. Unfortunately, it does not directly apply to the digital signals. However, it can be generalized if we use...
This work presents two alternatives to optimize the performance of Rankine cycles. The first approach is focused on the spatial distribution of the areas used in the heat exchange process, and the second approach is intended to study the...
Fused deposition modeling (FDM) is a cost-effective way of flexibly producing a high variety of 3D structures. However, the deposition non-uniformity or variation in the FDM process leads to dimensional errors and quality problems such...
Mechanical and Electrical Characterization of Critical Current Density in Round and Rectangular Reinforced Bi₂Sr₂CaCu2O₈₊ₓ Wires for High Field Magnet Applications
In recent years there has been a large push for magnet technologies extending into the 20 to 30 T range. High field solenoids can be made using resistive materials like Cu, however the resistive losses associated with Cu electromagnets...
At the beginning of this century, some societies have shifted, or at least recognized the need to shift, towards a more renewable way of living, this shift has initiated a movement to reduce the carbon footprint, and new standards are...
Stroke is a leading causing of death and disability world-wide, and yet, few options for therapeutic treatment exist. Cell therapies, particularly human bone-marrow derived mesenchymal stem cells (hMSC), have elicited particular interest...
Cells sense the mechanical properties of their environment through physical engagement and spreading, with high stiffness driving nuclear translocation of the mechanosensitive transcription factor YAP. Restriction of cell spread area or...
Analytical models developed using field data can provide useful information with acceptable confidence to evaluate and predict the operational characteristics of a highway. As such, this study presents statistical models that can be used...
Shockwave boundary layer interactions (SBLI) occur on both internal and external surfaces and adversely affect both the structural and propulsive performance of high-speed flight vehicles operating in the trans/super/hypersonic flow...
Hurricane Andrew (1992) caused one of the largest property losses in U.S. history, but limited availability of surface wind measurements hindered the advancement of wind engineering research. Many studies have been conducted on regular...
Florida has been actively implementing the AASHTO Pontis Bridge Management System (BMS) to support network-level and project-level decision making in the headquarters and district offices. As a concerted effort of the FDOT to improve the...
Modern power distribution grid has become very complex, especially with the integration of distributed renewable resources and many electronic power devices. Maintaining power quality is becoming incrementally challenging due to the...
Supply chain management plays an important role in ensuring an efficient merchandise trade. Freight transportation is an integral part of supply chain management. A significant part of freight transportation is covered by maritime...
Over the last three decades, traffic crashes have been one of the leading causes of fatalities and economic losses in the world. Since vulnerable road users have specific characteristics, they are perceived to have a higher risk of being...
This document reviews the fault tolerant control (FTC) problems, approaches, and ideas. Chapter one provides the motivation of the need for an FTC, then an overview of the FTC systems and basic terminologies are provided defining faults, ...
With today's trend toward ever growing amounts of data, deep learning approaches are increasingly deployed with impressive success, notably in image recognition and time series classification applications. State of the art performance of...
The air intake captures the freestream airflow and delivers it to the engine of the parent vehicle for thrust production. The shockwave boundary layer interactions (SBLI) in the intake duct play an important role in defining the flow...
REBCO coated conductors have recently become viable for high field superconducting magnets, but their use brings new challenges. Knowledge of the transport critical current density over a wide range of magnetic field and temperature, Jc...
Spatio-temporal surveillance has found increasing applications recently in various domains including disease outbreak detection, urban crime monitoring, medical image analysis and computer network intrusion detection. The objective of...
Vortex asymmetry develops on slender bodies at high angles of incidence, leading to large side-forcesand yaw moments even in symmetrical flight conditions. This unexpected side force can be large for the control surfaces to produce a...
Transport phenomena in general, and specifically, turbulent transport are inevitable processes in environmental problems and in the function of natural and manmade systems on the earth's surface. The continuously varying solar radiation, ...
Taller wind turbines with big wheel area have been proposed for low wind speed sites, where conventional 80m tower cannot produce enough electricity. Hub height of 140m gives the potential to all 50 states to produce power from wind....
Electric power grids are evolving rapidly as increased emphasis is placed on integration of renewable resources into existing power infrastructures and as new paradigms for power production and distribution, such as microgrids, are...
Facial expression recognition (FER) is a promising but challenging area of computer vision (CV).Many researchers have devoted significant resources to exploring FER in recent years, but an impediment remains: classifiers perform well on...
A 2kV high voltage LLC resonant DC to DC converter using silicon carbide (SiC) devices is proposed. The converter is applied for the medium voltage PV system to boost PV array terminal voltage and carry out maximum power point tracking ...
Understanding and predicting states in dynamic systems is a core challenge in many areas of study. This involves trying to estimate an evolving signal based on past observations or the understood rules of the system. Main obstacles...
A device that can be used to attenuate noise generated in an engine nacelle of an aircraft is an acoustic liner. A conventional single degree of freedom (SDOF) acoustic liner is comprised of a perforated face sheet, honeycomb cells, and...
As the only high temperature superconductor with round wire (RW) geometry, Bi2Sr2CaCu2O8+x (Bi-2212) superconducting wire has the advantages of being multi-filamentary, macroscopically isotropic and twistable. With overpressure (OP)...
Using the Layer by Layer (LbL) technique combined with microcontact printing, novel pH sensors were developed in order to detect the extracellular pH (pHe) of the cancerous cell lines K562 and HeLa. Key to this process was the...
High critical current density (Jc) in MOCVD REBCO coated conductors is accomplished by highly engineered artificial pinning centers (APC) nanostructures that are, however, difficult to control in repetitive long-length production. Adding...
Structural Health Monitoring (SHM) systems have been studied by engineers and researchers for years [1-7], yet the applications of Triboluminescence (TL)-based SHM system for aerospace and civil structures are to a degree unexplored....
Modern CPS are constructed by seamlessly integrating physical devices, computer systems, and communication networks, enabling data exchange and control of physical processes. The networked and distributed integration of computer systems...
The electrical power industry faces a never-ending and increasing demand for innovative designs and ideas to provide electrical power with reduced size, a clean environment, and resiliency. Electric transport systems are some of the...
Hurricane risk assessment is an important research topic: accurate estimation of the potential loss helps guide mitigation efforts to decrease the loss in the future. In the past decade, researchers working on the loss analysis tried to...
The overall goal of this thesis was to provide a quantitative analysis of the operational and safety performances of roundabouts. The operational analysis of Florida roundabouts was conducted to determine the base capacity of different...
Power hardware-in-the-loop (PHIL) is a powerful technique that allows researchers to test hardware under different operating conditions and environments.PHIL creates a closed-loop environment, where a single physical device is coupled to...
Active flow control can achieve substantial performance gains and meet the challenges of next-generation air vehicles and energy harvesting devices. The use of active flow control techniques with the deflecting flap or morphing surfaces...
In order to better study how to improve the accuracy of texture recognition in image processing, we will study the concept of information entropy, which characterizes the uncertainty of the information source. Since the information...
Lithium batteries have played an important role since early 1980’s to provide us with energy for small portable devices. Due to the increasing demand and limited availability of fossil fuels there is a need to shift to renewable energy....
Air pollution is a very critical non-natural hazard that adversely affects human health as well as the environment itself in the context of climate change. One of the biggest contributors to air pollution is the transportation industry....
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