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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.
Health condition monitoring and failure detection play a crucial role in estimating the performance of solar panels such as degradation trend over time and occurrence of failures. Monitoring and detecting significant degradation can help...
Despite the attractive properties of advanced ceramics, they are not popular for structural applications even though they possess high strength. Their low fracture toughness and brittle fracture mode are unwelcome for high integrity...
Advanced composites which offer robust mechanical properties are being increasingly used for structural applications in the aerospace, marine, defense and transportation industries. However, the anisotropic nature of composite materials...
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...
Proper function of traffic photometric devices such as traffic signal modules is crucial for safe operation in the traffic environment. The Traffic Engineering Research Lab (TERL) of Florida Department of Transportation (FDOT) has a...
As composite materials gain wider acceptance within the transportation industry, it is pertinent to investigate the available coating processes with a view to reduce emissions and associated costs. Current painting processes are not only...
With the advent of nanotechnology, nanomaterials have drastically improved our lives in a very short span of time. The more we can tap into this resource, the more we can change our lives for better. All the applications of nanomaterials...
Many researchers regard carbon nanotube backlight units (CNT-BLUs) as a potential candidate for the liquid crystal display (LCD) industry. CNT buckypapers were tested as surface luminary sources for CNT-BLU applications. The field...
A 81-mm mortar barrel that is at least 50% lighter than the current steel barrel used in the M252 mortar system would prove to be advantageous for the army. The desire for the weight reduction was based on the army's vision of the future...
Weight of a material and the system formed by such material is a critical factor for many applications. Traditionally, engineering designed porous structures, typically honeycomb structures, have been utilized for weight critical...
Conductive materials are indispensable for almost all aspects of life. However, conventional metal conductors have some drawbacks including heavy weight and corrosion issues. Carbon nanotubes (CNTs) are promising as an alternative...
Individual carbon nanotubes (CNTs) possess excellent piezoresistive performance, which is manifested by the significant electrical resistance change when subject to mechanical deformation. In comparison to individual CNTs, the CNT thin...
High performance composites are currently being used in the marine, automotive, aerospace and defense industries. These industries demand materials with properties that are similar or better than conventional metals at a fraction of the...
The removal of particles, on the order of a micrometer – nanometer in size, adhered to surfaces poses a challenge to Integrated Circuit (IC) fabrication, space optics, high resolution and high power optics, large area displays, magnetic...
Many industrial experiments are conducted under various conditions which do not facilitate complete randomization of all the experimental factors. In response surface methodology whenever there are restrictions on randomization the...
The goal of this research is to fabricate, characterize and apply the designed polymer based porous piezoelectric material into practical use. In line with the goal, the research objectives are: Select proper materials that have...
Carbon nanotubes have excellent electrical, thermal, and mechanical properties as determined theoretically and experimentally. Their properties make them great candidates for use in a number of applications ranging from lightning strike...
A practical method to utilize carbon nanotubes (CNTs) in structural applications is to fabricate them into buckypapers (BPs), a thin film containing two-dimensional CNT networks, and combine them with a polymer matrix to make BP-polymer ...
The advantages of using polymer matrix composites in various applications are very well known throughout many industries. Their introduction and subsequent development since the 1940's has led to major cost savings due to their...
The Florida Department of Transportation has initiated and funded development of electronic crash and citation reporting in Florida using the TraCS (Traffic and Criminal Software) platform. The TraCS system is application software that...
Carbon nanotubes (CNTs) possess great potential for developing high-performance and multifunctional nanocomposites for a wide variety of applications. As the cost of producing CNT buckypaper, a thin film of CNT networks, continues to...
Since the first Cathode Ray Tube (CRT) TV was invented in 1927, display technology has progressed at a rapid speed, attracting tremendous attention and enormous resources. Liquid Crystal Display (LCD) is the most mature and popular...
The performance of the electric power system determines the cost-effective and reliable energy supply to maintain operations in a city. Electric power system performance improvement is important for utility companies in different aspects...
Statistical Process Control (SPC) is a statistical method for monitoring variability of processes. Process variation can be categorized as common cause and special cause. Common causes are the natural or expected variation of some change...
The focus of the dissertation is to find solutions to increase the through-thickness thermal conductivity of fiber-reinforced polymer matrix composites (PMC). The objective is to explore novel concepts and new approaches to improve the...
Carbon nanotubes (CNTs) are one of the wonders of modern science. Discovered a little over 15 years ago, they have shown the research community an outstanding set of properties. In terms of mechanical properties, they exhibit extremely...
This thesis studies two-stage stochastic optimization methods for supply prepositioning for hurricane relief logistics. The first stage determines where to preposition supplies and how much to preposition at a location. The second stage...
Intelligent morphing structures will revolutionize micro-robotics, wearable technology, and tiny electro-mechanical systems. The ideal morphing structure is thin and flexible with the ability to deform and sense its surroundings....
Carbon nanotubes have attracted tremendous attention in both industrial and academic world due to their incomparable attributes in various areas since their first discovery. In recent years, as one of the most distinctive applications, ...
This dissertation research extends and simplfiies existing piecewise-linear homotopy (PL) methods to solve G(x) = 0, with G : ℝⁿ → ℝ[superscript m]. Existing PL methods are designed to solve F(x) = 0, with F : ℝⁿ → ℝⁿ and some related...
The focus of this thesis was to employ the use of two widely used types of photovoltaic (PV) modules namely monocrystalline and polycrystalline in a tracking system to determine which produces the greater output and compare these results...
With the development of advanced sensing and network technology such as wireless data transmission and data storage and analytics under cloud platforms, the manufacturing plant is going through a new revolution, by which different...
Recently, the interest for renewable resources for fibers particularly of plant origin has been increasing. Reduction of use of traditional textile materials is now considered more critical due to the increasing environmental concern....
Many researchers have studied the interfacial shear stress (ISS) in nanocomposites through theoretical calculation, computational simulation or sophisticated nanomanipulation experiment measurement. In this research, we attempt to...
Carbon nanotube (CNT) fibers are very promising materials for many applications. Strong interactions among individual CNTs could produce a dense yarn results in exceptional properties. These properties are used in the application of high...
Thermoelectric technology has been treated as a candidate to convert heat into electricity and reuse the waste heat. By using the body heat, the thermoelectric generator is promising to apply to wearable devices as the power source. The...
As manufacturing systems are becoming more complex, the use of multivariate fault detection and diagnosis methods are increasingly important. Effective fault detection and diagnosis methods can minimize cost of rework, plant down time...
Materials with negative Poisson's ratio are referred to as auxetic materials. They are different from conventional materials in their deformation behavior when responding to external stresses. The cross-section of the materials widens in...
Poisson count process are often used to model the number of occurrences over some interval unit. In an industrial quality control setting, these processes are often used to model the number of nonconformities per unit of product. Current...
Poly(methyl methacrylate) (PMMA) multi-walled carbon nanotubes (MWCNTs) nanocomposites were synthesized by several methods using both pristine and surface functionalized carbon nanotubes (CNTs). Fourier transform infrared (FTIR)...
As wireless devices become more prevalent, the radio frequency (RF) spectrum is becoming more densely populated with cell phone and internet related broadband activities (e.g. text messaging, web browsing, and wireless routing). This...
The aim of this thesis is to investigate the effect of environmental and traffic-related factors on the frequency and severity of highway crashes with a focus on different age groups including the aging populations. Existing studies in...
Fiber-reinforced composites are becoming more popular due to their high strength to weight ratio, making them a suitable replacement for traditional metals for lightweight applications. However, for applications where electro...
Halide perovskites bring an unprecedented opportunity for low-cost high performance optoelectronic devices due to their extraordinary optical and electrical properties along with their solution processible nature. The record power...
The objectives of this research are to develop lightweight high-performance nanotube composite actuators that can be operated in open air and to study their actuation mechanisms. We successfully demonstrated solid electrolyte-based...
The resin transfer molding (RTM) process has been used in the composite industry for decades. However, several issues still exist and impede its wide applications. Some design tools for RTM parts have been developed but a more efficient...
This dissertation presents a systematic study on the dimension variation prediction and control for polymer matrix fiber reinforced composites. A dimension variation model was developed for process simulation based on thermal stress...
A major challenge to the study of the structure-property relationship of carbon nanotube (CNT) networks is to characterize the complex nanostructure with complicated nanoscale contacts and pore structures. An image-based characterization...
General augmentation techniques such as foldover and semifold have been a common practice in industrial experimentation for many years. Even though these techniques are extremely effective in maintaining balance and orthogonality, they...
One of the major concerns for many athletes in todays' sports is mild Traumatic Brain Injury (mTBI), which is commonly known as concussion. Researchers and manufacturers of sport helmets are constantly trying to develop new designs and...
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