Browsing CE Theses and Dissertations by Title
Now showing items 1-20 of 1033
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3D engineered capillary evaporators for enhanced critical heat flux and heat transfer coefficient in pool boiling and vapor chamber
(Wichita State University, 2020-07)A major challenge in pool-boiling heat transfer lies in the limit of the Critical Heat Flux (CHF) and Heat Transfer Coefficient (HTC), which is caused by the poor counterflow of liquid and vapor over a heated surface, ... -
A bluetooth-enabled, light weight, flexible epidermal electronic system for ECG monitoring
(Wichita State University, 2022-12)With 17.9 million deaths annually, cardiovascular diseases (CVDs) have become the leading cause of mortality worldwide. This increased death rate creates a significant need for long-term ambulatory ECG monitoring for early ... -
A brain-inspired framework for evolutionary artificial general intelligence
(Wichita State University, 2020-05)From the medical field to agriculture, from energy to transportation, every industry is going through a revolution by embracing artificial intelligence (AI); nevertheless, AI is still in its infancy when compared to the ... -
A comprehensive cost estimation for additive manufacturing
(Wichita State University, 2021-07)Additive Manufacturing (AM) is an emerging manufacturing method by which Computer-Aided Design (CAD) models are directly made into products and structures. Layers of material, such as polymers, metals, ceramics, composites, ... -
A comprehensive iterative design, simulation and finite element analysis of bare metal stent and diseased artery
(Wichita State University, 2015-12)Fatigue is a material failure due to cyclic forces acting upon said material. Fatigue can make the material fail before the stresses reach ultimate tensile strength or fracture strength. Intravascular coronary stent are ... -
A computational methodology for evaluation of the structural damage to a car and its occupant response for the new FMVSS 301R regulation as well as for various real-world rear-end collision scenarios
(Wichita State University, 2017-12)Due to requirements and continuous design improvement in automobile industries, it has become mandatory to keep passenger car and seating in automobile to safest at the time of a crash collisions. Although the rear-end ... -
A computational study of the dynamic responses of a composite versus a metallic aircraft fuselage structure in vertical impact along with examination of inclusion of struts and injury prediction of occupants
(Wichita State University, 2015-07)In recent years, the study on crashworthiness of aircraft fuselage section has been of great interest due to the increase in air travel and demand for occupant safety. The FAA conducted a series of drop tests on aircraft ... -
A computational study on static and unconstrained dynamic rollover crash tests of a mid-size SUV for various initial rollover parameters
(Wichita State University, 2018-05)In terms of frequency of accidents, rollover crashes are uncommon among all other crash types or directions. However, they are associated with highest fatality rate than any other crashes, as 33% of fatalities in automobile ... -
A DC-DC converter with high-voltage step-up ratio and reduced-voltage stress for renewable energy generation systems
(Wichita State University, 2018-12)This research work presents a high gain direct current-direct current (DC-DC) converter which is derived from a traditional boost converter. Electrical power systems are changing from a centralized generation model to a ... -
A design of experiment and Kriging-based model for studying the dynamics of multibody mechanical systems with revolute joint clearance
(Wichita State University, 2013-05)Over the last two decades, extensive work has been conducted to study the dynamic effect of the joint clearances in multibody mechanical systems. In contrast, little work has been devoted to optimize the performance of ... -
A fast time series power flow method for active distribution system control applications
(Wichita State University, 2021-05)Power system balancing, where supply of energy has to equal demand all time, is a very important constraint for electric power systems. In recent years, number of Distributed Energy Resources (DERs) and penetration of ... -
A flexible application layer approach to data aggregation
(Wichita State University, 2014-07)Data aggregation techniques traditionally utilize cross-layer optimizations, which prove challenging to implement and are applicable only to a few related scenarios, while each new scenario requires a new approach. Proposed ... -
A framework for measuring post-attack system-wide anonymity in anonymous communication systems
(Wichita State University, 2018-12)We develop techniques for measuring the amount of anonymity provided by anonymity systems in the aftermath of attacks. Anonymity systems are special systems that enable their users to carry out anonymous communication over ... -
A generic Bayesian approach using Laplace approximation for model-based failure prognosis
(Wichita State University, 2013-12)A generic Bayesian framework using Laplace approximation for model-based remaining useful life prognosis is presented in this thesis. The developed generic Bayesian prognosis approach models and updates the remaining useful ... -
A hybrid finite element analysis of shot peen contour forming using residual stress measurements
(Wichita State University, 2013-07)In order to develop surfaces that have the proper curvature for aerospace structures, it is sometimes necessary to use shot peen forming, also known as contour forming, to create the desired shape in a piece of metal. Since ... -
A hybrid imperialist competitive algorithm approach to solve a green vehicle routing problem
(Wichita State University, 2017-05)One of the most significant extension problems of the vehicle routing problem (VRP) is the heterogeneous fixed fleet vehicle routing problem (HFFVRP), which aims to provide service to a specific customers' group using a ... -
A hybrid physics aware learning based transmission line resistance estimation algorithm for dynamic line rating application
(Wichita State University, 2021-05)The worldwide push towards a more intelligent, connected and reliable electric power delivery system has led to the propagation of a wide range of new technologies and ideas within the power grid infrastructure. Thus, the ... -
A machine learning framework to predict subcellular morphology of endothelial cells for digital twin generation
(Wichita State University, 2022-05)Gaining insight into different cell behaviors is key to better understanding different pathologies. These behaviors may be explained in part through close observation of 3D cell morphology. Therefore, the objective of this ... -
A mattress contact model for a musculoskeletal simulation of human rolling
(Wichita State University, 2020-07)Limited mobility affects a lot of people, including those who have recently had surgery or major trauma, the geriatric population, and people with disabilities. Many people with limited mobility cannot reposition themselves ... -
A meshing technique for unsteady computational fluid dynamics solutions for rapidly changing boundaries and internal configurations
(Wichita State University, 2015-05)A method to generate structured meshes is developed that allows for rapid re-meshing of CFD problems that have rapidly changing boundaries or internal configurations. These types of problems have typically been solved by ...