Digital Commons Network^™

A Novel Power-Efficient Wireless Multi-Channel Recording System For The Telemonitoring Of Electroencephalography (Eeg), Mahmoud Sharafi

FIU Electronic Theses and Dissertations

This research introduces the development of a novel EEG recording system that is modular, batteryless, and wireless (untethered) with the supporting theoretical foundation in wireless communications and related design elements and circuitry. Its modular construct overcomes the EEG scaling problem and makes it easier for reconfiguring the hardware design in terms of the number and placement of electrodes and type of standard EEG system contemplated for use. In this development, portability, lightweight, and applicability to other clinical applications that rely on EEG data are sought. Due to printer tolerance, the 3D printed cap consists of 61 electrode placements. This recording …

Machine Learning For Multiclass Classification And Prediction Of Alzheimer's Disease, Solale Tabarestani

FIU Electronic Theses and Dissertations

Alzheimer's disease (AD) is an irreversible neurodegenerative disorder and a common form of dementia. This research aims to develop machine learning algorithms that diagnose and predict the progression of AD from multimodal heterogonous biomarkers with a focus placed on the early diagnosis. To meet this goal, several machine learning-based methods with their unique characteristics for feature extraction and automated classification, prediction, and visualization have been developed to discern subtle progression trends and predict the trajectory of disease progression.

The methodology envisioned aims to enhance both the multiclass classification accuracy and prediction outcomes by effectively modeling the interplay between the multimodal …

Novel Conformal Strongly Coupled Magnetic Resonance Systems, Juan C. Barreto Jr

FIU Electronic Theses and Dissertations

Wireless Power Transfer (WPT) is an emerging technology in today’s society. Recently, many advancements to WPT systems have been implemented, such as, the introduction of the Strongly Coupled Magnetic Resonance (SCMR) and Conformal SCMR (CSCMR) methods. These methods allow WPT systems to operate at increased distances with smaller dimensional footprints. However, their range is still limited and needs to be expanded, and their footprint is sometimes large and needs to be miniaturized. Therefore, the goal of this research is to develop new designs and methodologies that can achieve the range extension and miniaturization of CSCMR systems.

Furthermore, many wireless devices …

Targeted Presentation Skill Trainings To Nurture Construction Management Students At Florida International University, Gabriella D. Santi Kasabdji

FIU Electronic Theses and Dissertations

In today’s fast-paced work environment, competent construction managers (CM) are vital for project success. However, to be competent, these professionals require the mastery of not only technical skills but also soft skills that enable them to achieve their full potential. Regardless, many CM prize technical abilities over the day-to-day writing, speaking, and overall soft skills, assuming these are not as important to the knowledge of complex concepts. Industry leaders confirm this, as evidence states graduate construction managers lack the basic communication skills to “hit the ground running”. That said, academic programs should seek to adapt and nurture these vital skill …

Corrosion Behavior Of Steel In Deficient Grout With Enhanced Sulfate Ion Concentrations, Krishna Vigneshwaran Konda Krishnamurthy

FIU Electronic Theses and Dissertations

Recent corrosion failures of tendons in Florida post-tensioned (PT) bridges utilizing low bleed specified grout products have shown the need for better understanding of the mechanisms that cause corrosion and to determine the extent of the problem in PT tendons with similar materials. Those deficient grouts in the tendons showed low chloride content below commonly assumed threshold limits for corrosion initiation, but they showed higher concentrations of sulfate ions, high pore water pH and higher moisture content. The role of enhanced sulfate ion concentrations in the development of steel corrosion in deficient grout has not been elucidated, but the role …

Development Of A Body For A Pneumatic Crawler For Radioactive Waste Pipelines, Jose Alfonso Matos

FIU Electronic Theses and Dissertations

The goal of this thesis was to develop a body for a crawler robot to navigate DOE Hanford Site transfer pipelines in a timely fashion. Previous work in pipe crawlers was analyzed and different configurations were studied by this author in order to design a suitable device. Tests were done in CAD to verify the device would fit and be able to travel within the confines of the pipelines’3” inner diameter and 90° elbows with 4.25”radii. Pipelines in Hanford can transition into 2” pipe and this was also taken into consideration when selecting the dimensions for the device. Manufacturing methods …