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Now showing items 5729-5748 of 9118
Microcapsule based self-healing for 3D printed polymer composites
(2019-07-16)
Polymer composites are widely used in many industries due to their superior properties. Many of these composites are 3D printed to allow for greater customization and control over the properties. However, the replacement ...
Microcontroller-Based Current-Mode Control for Power Converters
(2005-12-15)
Presented in this dissertation is the implementation of microcontroller-based digital current-mode control (CMC) switch-mode power converters. A hybrid control method is proposed. By using on-board analog peripherals on ...
Microfabricated Electrode Arrays Suitable for Stimulation and Recording in Cardiac Electrophysiological Studies
(2008-05-15)
Sudden cardiac arrest (SCA) caused by ventricular fibrillation is one of the most serious heart related problems in the United States today which is responsible for hundreds of thousands of deaths per year. The goal of ...
Microfibrous Entrapped Catalysts and Sorbents: Microstructured Heterogeneous Contacting Systems with Enhanced Efficiency
(2008-05-15)
Catalyst/adsorbent particles were entrapped in sinter-locked networks of
microfibers to form composite materials for use in heterogeneous catalysis and adsorption applications. These novel microstructured materials called ...
Microfibrous Entrapped Catalysts for Low Temperature CO Oxidation in Humid Air
(2013-05-14)
CO oxidation at ambient conditions poses a major challenge due to CO self-poisoning at low temperature as well as passivation of the catalyst in the presence of moisture. A highly active novel catalyst has been developed ...
Microfluidic Chips for Characterization of Enzyme-catalyzed Reactions and Evaluation of Dose Responses for Drug Discovery
(2012-08-02)
In last century, the discovery of semiconductors, the invention of transistors and the creation of the integrated circuit brought a revolution in the field of computation, which marked the foundation of computers and ...
Microfluidic Circuit Designs for Nanoliter-Scale Flow Control and Highly Sensitive Quantitative Bioanalysis
(2017-12-04)
Within this dissertation, we have developed several new microfluidic circuit components that permit precise flow control at the nanoliter scale, and we have demonstrated their successful applications in either proof-of-concept ...
Microfluidic Circuit Designs for Nanoliter-Scale Flow Control and Highly Sensitive Quantitative Bioanalysis
(2018-02-14)
Within this dissertation, we have developed several new microfluidic circuit components that permit precise flow control at the nanoliter scale, and we have demonstrated their successful applications in either proof-of-concept ...
Microfluidic Interfacing for Primary Endocrine Tissue: Developing Bioanalytical Methodologies and Novel Fabrication Methods for Cell Culture and Analysis
(2016-12-09)
In order to bridge the gap between microfluidic designs and real world applications, microanalysis systems were developed using minimalistic design attributes which could be readily paired with compatible bioanalytical ...
Microhabitat Associations of Wintering Birds in a Southeastern Bottomland Forest within the Eastern Gulf Coastal Plain of Florida
(2009-07-16)
I examined microhabitat characteristics affecting the occupancy of wintering birds in a southeastern bottomland forest with repeated point counts at 186 sites. Models were derived a priori based on published literature and ...
Micromachined Isolators for Shock and Vibration Reliability of MEMS Sensors: Fabrication, Damping, and Integration
(2020-11-20)
This dissertation details the design, FEA simulation, fabrication, and testing of three variations of micromachined vibration isolators (MVIs). The vibration isolators serve as low pass filters to attenuate high frequency ...
Microneedles Assisted Iontophoretic Transdermal Delivery of Drugs
(2013-11-01)
Topical/transdermal delivery offers an attractive alternative to oral and parenteral delivery in terms of non-invasiveness, administration and termination of dose and drug stability etc. However, the excellent barrier ...
Microparticle Dynamics in Strongly Magnetized Low Temperature Plasmas
(2017-07-25)
Dusty plasma systems consist of charged microparticles (usually called dust grains) embedded in a background plasma. The dust component can significantly modify the background plasma by collecting electrons and ions, thus ...
Microparticle Dynamics in the Presence of Externally Imposed, Ordered Structures in a Magnetized Low-Temperature Plasma
(2019-11-26)
Dusty plasmas are a type of plasma which consists of charged microparticles suspended in a background plasma. In the presence of a strong magnetic field, dusty plasmas have been observed to develop new patterned formations ...
microRNA as Predictive Biomarkers of Canine Mammary Tumors
(2019-07-18)
Canine mammary tumors (CMT) are one of the most common forms of cancer in intact female dogs. CMTs share clinical, epidemiologic, and genetic features with women with breast cancer (BC). BC and CMT cells have altered ...
A microsecond time-resolved spectroscopic study of laser induced plasmas and their interaction with solid materials
(2015-07-28)
Photon-material interactions are driven by fast chemical and physical phenomena. With enough incident energy, photons are capable of inducing photoionization processes converting the solid material to a plasma. The highly ...
A Microsimulation Analysis on the Impact of Different Bridge Deck Replacement Methods on Travel Times and Road User Costs
(2012-01-09)
The objective of this research was to evaluate different bridge deck replacement methods using microsimulation software. Previously collected data from the test site, located on I-59 at State Route 68 near Collinsville, ...
Microstructural effects on fracture behavior of particulate composites: Investigation of toughening mechanisms using optical and boundary element methods
(2006-08-15)
Particulate polymer composites are used in a variety of engineering applications. These are generally two phase materials with polymeric phase reinforced by a filler phase to improve overall mechanical, thermal and/or ...
Microstructure and Mechanical Properties of 2024-T3 and 7075-T6 Aluminum Alloys and Austenitic Stainless Steel 304 after Being Exposed to Hydrogen Peroxide
(2008-08-15)
The effect of hydrogen peroxide used as a decontaminant agent on selected aircraft metallic materials has been investigated. The work is divided into three sections; bacterial attachment behavior onto an austenitic stainless ...
Microstructure Development and Evolution of Sputter Deposited Indium Thin Films in Cryogenics
(2007-08-15)
Low melting temperature materials have been deposited on amorphous substrate using DC magnetron sputter system. Process parameters such as power, pressure, and temperature have been investigated to improve surface morphology ...