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Full-Text Articles in Physics

Resilient And Real-Time Control For The Optimum Management Of Hybrid Energy Storage Systems With Distributed Dynamic Demands, Christopher R. Lashway Oct 2017

Resilient And Real-Time Control For The Optimum Management Of Hybrid Energy Storage Systems With Distributed Dynamic Demands, Christopher R. Lashway

FIU Electronic Theses and Dissertations

A continuous increase in demands from the utility grid and traction applications have steered public attention toward the integration of energy storage (ES) and hybrid ES (HESS) solutions. Modern technologies are no longer limited to batteries, but can include supercapacitors (SC) and flywheel electromechanical ES well. However, insufficient control and algorithms to monitor these devices can result in a wide range of operational issues. A modern day control platform must have a deep understanding of the source. In this dissertation, specialized modular Energy Storage Management Controllers (ESMC) were developed to interface with a variety of ES devices. The EMSC provides …


A Charged Fusion Product Diagnostic For A Spherical Tokamak, Ramona V. Perez May 2015

A Charged Fusion Product Diagnostic For A Spherical Tokamak, Ramona V. Perez

FIU Electronic Theses and Dissertations

Designs for future nuclear fusion power reactors rely on the ability to create a stable plasma (hot ionized gas of hydrogen isotopes) as a medium with which to sustain nuclear fusion reactions. My dissertation work involves designing, constructing, testing, installing, operating, and validating a new diagnostic for spherical tokamaks, a type of reactor test facility. Through detecting charged particles emitted from the plasma, this instrument can be used to study fusion reaction rates within the plasma and how they are affected by plasma perturbations. Quantitatively assessing nuclear fusion reaction rates at specific locations inside the plasma and as a function …


Effect Of Surfactants On The Structure And Morphology Of Magnesium Borate Hydroxide Nanowhiskers Synthesized By Hydrothermal Route, Latha Kumari, Wz Li, Shrinivas Kulkarni, Kh Wu, Wei Chen, Chunlei Wang, Charles H. Vannoy, Roger M. Leblanc Oct 2009

Effect Of Surfactants On The Structure And Morphology Of Magnesium Borate Hydroxide Nanowhiskers Synthesized By Hydrothermal Route, Latha Kumari, Wz Li, Shrinivas Kulkarni, Kh Wu, Wei Chen, Chunlei Wang, Charles H. Vannoy, Roger M. Leblanc

Department of Physics

Magnesium borate hydroxide (MBH) nanowhiskers were synthesized using a one step hydrothermal process with different surfactants. The effect surfactants have on the structure and morphology of the MBH nanowhiskers has been investigated. The X-ray diffraction profile confirms that the as-synthesized material is of single phase, monoclinic MgBO2(OH). The variations in the size and shape of the different MBH nanowhiskers have been discussed based on the surface morphology analysis. The annealing of MBH nanowhiskers at 500 °C for 4 h has significant effect on the crystal structure and surface morphology. The UV–vis absorption spectra of the MBH nanowhiskers synthesized …