Now showing items 1-10 of 29
Designing Thermal Modulators for Portable GC x GC Systems.
(2015)
Microelectromechanical systems (MEMS) have the advantage of scale and can be manufactured in bulk. One of the active areas of MEMS research is the development of micro-scale comprehensive two-dimensional gas chromatography ...
Nonholonomic Virtual Constraints and Gait Optimization for Robust Robot Walking Control.
(2016)
Bipedal locomotion is well suited for mobile robotics because it promises to allow robots to traverse difficult terrain and work effectively in man-made environments. Despite this inherent advantage, however, no existing ...
Large-scale Real-space Kohn-Sham Density Functional Theory Calculations Using Adaptive Finite-element Discretization.
(2014)
Past few decades have seen an increasingly important role played by quantum mechanical calculations based on Kohn-Sham density functional theory (DFT) in the investigation of wide variety of materials properties. However, ...
Continuum-Scale Modeling of Rechargeable Batteries
(2020)
During the operation of a rechargeable battery, the electrochemical reactions occur at the interface between the electrolyte and the active material in the electrode. The electrochemical performance of such batteries is ...
Numerical Studies of Wave Turbulence in Finite Domains
(2023)
Nonlinear wave systems are ubiquitous in nature, and when many incoherent dispersive waves interact, there is the potential for wave turbulence (WT). Just as in flow turbulence, systems in WT exhibit inter-scale energy ...
All-Electron Ground-State and Time-Dependent Density Functional Theory: Fast Algorithms and Better Approximations
(2019)
Density functional theory (DFT), in its ground-state as well as time-dependent variant, have enjoyed incredible success in predicting a range of physical, chemical and materials properties. Although a formally exact theory, ...
Applications of Computation in Acoustics: Ultrasound Bioeffects and Underwater Transmission Loss Uncertainty
(2017)
This dissertation presents work in which computational modeling is used to advance two areas of interest in modern acoustics. First, we develop computational models to study the poorly understood physics underlying ...
Piezoelectric Impedance-Based Structural Health Monitoring using Bistable and Adaptive Piezoelectric Circuitry
(2017)
Structural health monitoring (SHM) has been extensively explored for various aerospace, civil, and mechanical systems due to its significant importance in enhancing life-safety and economic benefits. Among various SHM ...
Thermoelectric Transport in Disordered Materials
(2022)
Material disorder comes in two forms, dynamic energetic disorder and static energetic disorder, both of which can greatly influence charge and thermoelectric (TE) transport properties by altering the energy dependences of ...
Efficient Output-Based Adaptation Mechanics for High-Order Computational Fluid Dynamics Methods
(2018)
As numerical simulations are applied to more complex and large-scale problems, solution verification becomes increasingly important in ensuring accuracy of the computed results. In addition, although improvements in ...