Browsing by Author "Lin, Yu"

Now showing items 1-19 of 19

3-D Global Hybrid Simulations of Mode Conversion at the Dayside Magnetopause

Shi, Feng (2014-05-02)

Mode conversion at the magnetopause has been suggested to lead to the generation of kinetic Alfven waves (KAWs) and effective mass transport from the solar wind into the magnetosphere. To investigate the mode conversion ...

Alternative Growth and Interface Passivation Techniques for SiO2 on 4H-SiC

Zhu, Xingguang (2008-12-15)

Silicon Carbide is a novel wide band gap semiconductor material with excellent thermal, chemical and electrical properties. It also shares its natural oxide SiO2 with Si, which has been widely studied and optimized for ...

Band Engineering of Perovskite Ferrite Epitaxial Thin Films for OER Catalysis

Paudel, Rajendra (2022-07-28)

Reliable energy from renewable sources via oxidation of water requires an efficient electrocatalyst. The high cost, low abundance, and poor stability of the current noble metal based electrocatalyst are a primary obstacle ...

Equilibrium Calculation with Toroidal Flow in NIMEQ

Markham, Tyler (2018-07-19)

The focus of this work is to demonstrate the importance of incorporating toroidal rotation in calculating tokamak-like equilibria with axisymmetry. Specifically, this work will focus on showing the impact toroidal flow had ...

Equilibrium Molecular Dynamics Study of Phonon Transport Properties at High Temperatures

Avritte, Jalaan (2023-12-06) ETD File Embargoed

Thermal conductivity is a material property of great importance in many areas of physics including coat barriers, renewable energy, nano-electronic devices, and geological processes inside the Earth. At the microscopic ...

Evolution of the Earth's Ring Current during Geomagnetic Storms

Grimes, Eric (2012-08-29)

We examine the evolution of the ring current during the main and early recovery phases of five geomagnetic storms, three driven by co-rotating interaction regions (CIRs) in the solar wind and two driven by interplanetary ...

Field Aligned Currents Derived from Pressue Profiles Obtained from TWINS ENA Images

Wood, Keith (2017-08-21)

Field aligned currents (FACs) are an important mechanism coupling the Earth's magnetosphere and ionosphere. The Two Wide-Angle Imaging Neutral-atom Spectrometers (TWINS) mission is the first stereoscopic neutral atom ...

Filament Morphology in Highly Magnetized Capacitively Coupled Low Temperature Plasmas

Williams, Stephen (2023-08-04)

Due to the small charge-to-mass ratio of dust particles, it is often necessary to use large magnetic fields of B ≥ 1 T, in order to observe the influence of magnetic forces in laboratory dusty plasmas. However, when ...

Filamentation and Formation of Imposed Patterns in Low-Pressure Magnetized Electric Discharges: A Numerical Approach

Menati, Mohamad (2020-08-03)

Presence of strong magnetic fields (B ≥ 1.0 T) in magnetized dusty plasma experiments can result in a variety of phenomena in the background plasma and in the dust cloud. In the background plasma, the magnetic field induces ...

Global Hybrid Simulation of Kinetic Alfven Waves Associated with Magnetotail Reconnection and Fast Flows

Cheng, Lei (2020-05-18)

It is believed Alfven waves, and particularly kinetic Alfven waves (KAWs), play an important role in the coupling between the solar wind and the magnetosphere. Although KAWs have been observed in the magnetotail and ...

Gyrokinetic Electron and Fully Kinetic Ion Particle Simulation on Current Sheet Instabilities

Wang, Zhenyu (2016-07-20)

Linear eigenmode stability properties of three-dimensional instabilities in a Harris current sheet with a finite guide magnetic field are systematically studied employing the gyrokinetic electron and fully kinetic ion ...

Hardy space associated with flag-type singular integrals of three parameters

Long, Yang (2020-07-21) ETD File Embargoed

The main purpose of this thesis is to establish a Hardy space theory associated with the flag-type singular integrals on Euclidean space. This theory is a continuation of those the classical one parameter, product setting ...

Interactions between Electromagnetic Ion Cyclotron Waves and Protons in the Magnetosphere: SCATHA Results

Nguyen, Son (2007-05-15)

Electromagnetic ion cyclotron (EMIC) waves and their role in governing proton populations in the ring current and radiation belt regions are of importance in understanding the dynamics of the Earth’s magnetosphere. The ...

Investigation of Kinetic Physics of Magnetic Reconnection under a Finite Guide Field

Lu, Xiang (2011-08-08)

Magnetic reconnection, the process by which the magnetic energy is converted into heat and flow energy, is believed to be a very important process in space and laboratory plasmas. Among various reconnection models, the ...

Investigation of Probe-Induced Dust Voids in a Weakly Magnetized Dusty Plasma

LeBlanc, Spencer (2019-12-06)

Dust voids, or regions free of dust grains surrounded by dusty plasmas, have been observed in a wide array of experimental configurations, from microgravity systems, to 3-dimensional dust clouds, to 2-dimensional monolayers. ...

Measurement of the thermal properties of a weakly-coupled complex (dusty) plasma

Williams, Jeremiah (2006-12-15)

Knowledge of the velocity space distribution function facilitates the characterization of the thermal and dynamical properties of a system. In this work, a comprehensive series of experiments and numerical simulations are ...

Modification of Flow and Flow Driven Instabilities in the Auburn Linear EXperiment for Instability Studies

Eadon, Ashley (2011-01-04)

The primary focus of the experiments presented here is to study the impact of sheared flows on the stability of a magnetized plasma. Experiments will utilize sheared transverse flows to drive an instability in the ion ...

Particle Simulation of Lower Hybrid Waves and Electron-Ion Hybrid Instability

Qi, Lei (2014-05-01)

Lower hybrid wave (LHW) has been of great interest to laboratory plasma physics for decades due to its important applications in particles heating and current drive in plasmas devices. There are two fundamental characteristics ...

Theoretical Study of Thermal Properties and Thermal Conductivities of Crystals

Tang, Xiaoli (2008-08-15)

Standard first-principles total energy and force calculations were extended to the calculations of harmonic force constant matrices and third order lattice anharmonicity tensors with an efficient super-cell finite-difference ...