Search results | J. Murrey Atkins Library

Title: MANAGEMENT OF OPTICAL ABSORPTION IN PLASMONIC METAMATERIALS
Author: Alisafaee, Hossein
Date Created: 2015
Subjects--Topical: Electromagnetism
Description: In this dissertation, the main focus has been on the manipulation of optical absorption. That is to either decrease the unwanted losses or increase the desired absorption for specific applications. The approaches have been chosen to provide insigh...

Title: A Comparative Study Between Axial and Radial Flux-Focusing Magnetic Gear Topologies and Mechanical Gearboxes
Author: Calvin, Matthew
Date Created: 2015
Subjects--Topical: Mechanical engineering, Electrical engineering, Electromagnetism
Description: A variety of magnetic gear topologies have been investigated in recent years as alternatives to traditional mechanical gearboxes. In general these magnetic gears offer advantages in the non-contact transmission of torque including inherent overloa...

Title: Advanced Metasurface Design and Integration for Electromagnetic Systems
Author: Hecht, Kristy
Date Created: 2023
Subjects--Topical: Electromagnetism
Description: In the realm of metamaterials and electromagnetic engineering, a metasurface is a two-dimensional array of subwavelength-scale structures meticulously engineered to manipulate electromagnetic waves. Unlike conventional bulky optical elements, meta...

Title: ADDITIVE MANUFACTURABLE METASURFACES FOR RF APPLICATION
Author: Hecht, Kristy
Date Created: 2020
Subjects--Topical: Electromagnetism
Description: Materials found in nature exhibit behaviors with certain properties such as mass density, permeability, and permittivity. Unfortunately, there are limitations and restrictions to the behaviors of these materials that can be overcome with the use o...

Title: Exploiting Metamaterials: Fundamentals and Applications
Author: Karami, Morteza
Date Created: 2017
Subjects--Topical: Optics, Physics, Electromagnetism
Description: Metamaterials are man-made structures developed to engineer electromagnetic waves, and they have been studied intensely in recent decades. Although there are still debates about the performance of these types of artificial materials, many practica...

Title: AN INVESTIGATION INTO THE TORQUE CAPABILITIES OF HIGH GEAR RATIO MAGNETIC GEARBOXES
Author: Li, Kang
Date Created: 2018
Subjects--Topical: Electrical engineering, Early childhood education, Electromagnetism
Description: Mechanical gears can be as small as those in traditional mechanical watches or as large as those in mechanical marine turbines. They can be seen in almost all transportation tools, for example, bicycles, cars, trains and airplanes. Though they hav...

Title: Metamaterial Enhanced Broadband Dipole Antenna with Selective Directivity and Enhanced Gain
Author: Naik, Ajay
Date Created: 2018
Subjects--Topical: Electromagnetism
Description: This research is aimed at investigating the interaction between a broadband dipole andmetamaterials. Metamaterials are artificial electromagnetic structures whose electricpermittivity and magnetic permeability can be engineered to have parameter v...

Title: Current sensing solutions for modern power electronic
Author: Niakan, Hossein
Date Created: 2023
Subjects--Topical: Electrical engineering, Electromagnetism
Description: Power electronics facilitated the growth of a wide range of industries in today’s world. Its presence can be seen in renewable energy systems, transportation electrification, smart grids, industrial drives, and consumer electronics to name a few. ...

Title: Metamaterial Loading of Electrically Small Patch Antennas to Enable Beam Steering up to the Horizon
Author: Pai Raikar, Vandita Rajiv
Date Created: 2015
Subjects--Topical: Electrical engineering, Electromagnetism
Description: This thesis research has been conducted with an aim of investigating the effects ofmetamaterials on microstrip patch antennas. Metamaterials exhibit interesting propertiessuch as single negative or simultaneous double negative values of relative p...

Title: Ultra-Wideband Contactless Current Sensors for Power Electronics Applications
Author: Parsa Sirat, Ali
Date Created: 2023
Subjects--Topical: Electrical engineering, Electromagnetism
Description: Enhanced power density factors can be achieved in the new generation of power electronics by utilizing wide-bandgap semiconductor switching devices with higher switching speeds and lower losses. These characteristics make high-frequency switching ...

Title: Dynamic suspension modeling of an eddy-current device: an application to Maglev
Author: Paudel, Nirmal
Date Created: 2012
Subjects--Topical: Electrical engineering, Power resources, Electromagnetism
Description: When a magnetic source is simultaneously oscillated and translationally moved above a linear conductive passive guideway such as aluminum, eddy-currents are induced that give rise to a time-varying opposing field in the air-gap. This time-varying ...

Title: THREE-DIMENSIONAL STEADY STATE AND TRANSIENT EDDY CURRENT MODELING
Author: Paul, Subhra
Date Created: 2014
Subjects--Topical: Electrical engineering, Electromagnetism
Description: Maglev transportation using electrodynamic wheels is a promising new technology aimed at providing a low cost, high-speed and environmental friendly mode of transportation. In this technology, Halbach permanent magnet rotors, termed electrodynamic...

Title: THE ADVANCED CONTROL OF TRIBOELECTRICALLY CHARGED FUEL USING ELECTRIC FIELDS UNDER HIGH PRESSURE
Author: Rolle, Alzarrio
Date Created: 2017
Subjects--Topical: Mechanical engineering, Power resources, Electromagnetism
Description: This research provides preliminary results of electrospraying in elevated surrounding pressures of 40, 50 and 60 psi. Investigations were correspondingly detailed regarding the process of designing and acquiring a manufactured custom pressure cham...

Title: Microwave power imaging for ultra-wide band early breast cancer detection
Author: Shao, Wenyi
Date Created: 2012
Subjects--Topical: Electrical engineering, Biomedical engineering, Electromagnetism
Description: Due to the critical need for complementary or/and alternative modalities to current X-ray mammography for early-stage breast cancer detection, a 3D active microwave imaging system has been developed. This thesis presents a detailed method for rapi...

Title: Broadband and Reconfigurable Filtering Antennas for Next Generation Mobile Wireless Communications Systems
Author: Shehan, Joshua
Date Created: 2018
Subjects--Topical: Electrical engineering, Electromagnetism
Description: Mobile wireless communications systems, particularly at the base station level, are ever evolving to provide more data with better coverage resulting in continuously evolving antenna technology. From first generation (1G) mobile networks deployed ...

Title: FRACTAL-INSPIRED SUBWAVELENGTH GEOMETRIC INCLUSIONS FOR IMPROVEMENT OF HIGH-FREQUENCY ELECTROMAGNETIC DEVICES
Author: Smith, Kathryn
Date Created: 2018
Subjects--Topical: Electromagnetism
Description: This dissertation presents research results demonstrating the efficacy of fractal-inspired subwavelength geometric inclusions for improvement of high-frequency electromagnetic devices. It begins with a review of the open literature in the area of ...

Title: AN INVESTIGATION INTO THE PERFORMANCE OF A FLUX CONCENTRATION MAGNETIC GEARBOX AND MAGNETICALLY GEARED MOTORS
Author: Som, Debarupa
Date Created: 2020
Subjects--Topical: Electrical engineering, Electromagnetism
Description: In today’s world, renewable energy sources like wind and ocean energy have come more into prominence as a source of sustainable energy. The energy conversion devices used in these cases, utilize mechanical gearboxes to match the speed of the input...

Title: Design of a Closed Loop Wireless Power Transfer System for an Electrocorticography Device to be Implanted in the Brain of a Rat Over an Extended Period
Author: Stuemke, Jeremiah
Date Created: 2018
Subjects--Topical: Electrical engineering, Electromagnetism
Description: A biomedical power and communications system is currently under development for the purpose of continuously monitoring neural activity in ratswith epilepsy over a period of nine months. A closed loop system is employed that dynamically adjusts for...

Title: Correlation Based Electromagnetic Analysis Attack and Countermeasure
Author: Tamore, Suyash Mohan
Date Created: 2018
Subjects--Topical: Electrical engineering, Electromagnetism
Description: Side channel analysis is a non-invasive cryptanalysis attack categorized as an implementation attack. Electronic device leak information during the data processing via covert side channels. Power consumption, electromagnetic (EM) radiations, and p...

Title: INFORMATION BASED SMART RF ENERGY HARVESTING IN WIRELESS SENSOR NETWORKS
Author: Tripathi, Asheesh
Date Created: 2020
Subjects--Topical: Electrical engineering, Electromagnetism
Description: A major constraint for long term sustainability of wireless sensor networks (WSN) and the Internet of Things (IoT) is the limitation of their energy resources. Most wireless sensors are low energy consuming devices which are, in general, designed ...