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Now showing items 281-300 of 334
Selective area synthesis of 3-D carbon nanotube forest microsctructures
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Carbon nanotubes (CNTs) are solid carbon allotropes that feature high strength and high transport capabilities. When large populations of CNTs are ...
Design and optimization of dissipative elastic metamaterials and their applications for broadband blast and shockwave mitigation
(University of Missouri--Columbia, 2016)
Elastic/Acoustic metamaterials comprise a new class of composite materials that possess unique effective material properties owing to their locally resonant substructures. Because of the inherent local resonance mechanism, ...
Lifetime analysis of irradiated beryllium in research reactors /
(University of Missouri--Columbia, 2017)
The objective of this study is to develop a technique to predict onset of cracking and ultimately failure of materials exposed to neutronic bombardment. Beryllium is commonly used in research reactors as a reflector material ...
A study of plasma treatments effects on dental biofilms
(University of Missouri--Columbia, 2016)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Dental plaque is a biofilm that grows on surfaces within the mouth and contains millions of bacteria. The bacteria in plaque cause tooth decay and gum ...
A preliminary study of shock driven multiphase hydrodynamic instabilities
(University of Missouri--Columbia, 2016)
This thesis details work performed towards the completion of a Masters of Science in Mechanical Engineering. Two topics are discussed towards the study of shock driven multiphase hydrodynamic instabilities. The first topic, ...
Optimal path planning of an unmanned combat aerial vehicle with obstacle avoidance
(University of Missouri--Columbia, 2016)
The objective of this study is to optimize path planning for an unmanned combat aerial vehicle (UCAV) with obstacle avoidance by minimizing fuel consumption. A nonlinear constrained optimization solver, Fmincon, is used ...
Dynamic model of sandwich structure with viscoelastic middle layers
(University of Missouri--Columbia, 2016)
Composite materials have been increasingly used in various types of engineering systems such as aeronautics, aerospace and civil engineering to minimize the structural weight. Viscoelastic layer has a level of energy ...
Tailored optical properties of graphitic carbon nitride thin films via surface functionalization of growth substrates
(University of Missouri--Columbia, 2017)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Graphitic carbon nitride has attracted much attention in recent years due to its medium size band gap, mechanical strength, blue fluorescence, and ...
4D printing of stimulus-responsive polymeric materials
(University of Missouri--Columbia, 2017)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Rising beyond 3D printing techniques, 4D printing can fabricate complex structures with inks made of stimulus-responsive polymeric materials. Thus, ...
Development of phase change material integrated oriented strand board for thermal energy storage
(University of Missouri--Columbia, 2017)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] This study is attempted to develop energy storing oriented strand board (OSB). Energy storing capability is achieved by integrating phase change material ...
Dynamic and efficiency characteristics of an inlet metering valve controlled fixed displacement pump
(University of Missouri--Columbia, 2016)
This project developed the inlet metering system. An inlet metering system represents a new option in hydraulic pump design. Traditional pressure controlled hydraulic pumps rely on either swashplate displacement (for ...
A combined analytical and experimental approach for prediction of properties of Fused Deposition Modeling (FDM) parts
(University of Missouri--Columbia, 2020)
Fused Deposition Modeling (FDM) is a technique used to build rapid prototypes out of thermoplastic materials. Printing technology continues to mature from a rapid prototyping process to a rapid manufacturing technique, ...
Bifurcation analysis and damage detection in mechanical structures
(University of Missouri--Columbia, 2018)
Bifurcation and damage are two phenomena prompting any structure to unpredicted failure. Their early detection is crucial to maintaining structural health and integrity. In this work, we investigate two topics in bifurcation ...
Air-side heat transfer enhancement by self-agitators
(University of Missouri--Columbia, 2019)
Airfoil-based self-agitators (AFAs), bio-inspired rectangular-shaped self-agitators (RSAs), and caudal-fin inspired hourglass-shaped self-agitators (CHSAs) were installed inside plate-fin heat exchanger. The heat transfer ...
Experimental investigation of microencapsulated phase change material water slurry performance in an oscillating heat pipe
(University of Missouri--Columbia, 2022)
An experimental investigation was performed to determine the heat transfer performance of an oscillating heat pipe (OHP) with a micro-encapsulated phase change material (MPCM) slurry working fluid. In this investigation, ...
Thermal properties of disodium hydrogen phosphate dodecahydrate coated metal foam/sodium acetate trihydrate composite as phase change material
(University of Missouri--Columbia, 2022)
Salt hydrates such as sodium acetate trihydrate (SAT) can store large amounts of energy by leveraging a high latent heat of fusion. In this study, aluminum and copper foams with pore sizes of 40, 80, and 110 pores per inch ...
Missile guidance law design with impact angle constraint based on SDRE scheme
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] This thesis studies the homing missile guidance problem of intercepting constant velocity moving targets, with different terminal impact angles in a ...
Numeric modeling of a micro-scale differential thermal calorimeter for the purpose of cryopreservation
(University of Missouri--Columbia, 2017)
Cryopreservation requires biological material to be stored at temperatures well below the freezing point of water. During the process of cryopreservation, the cooling rate should be carefully chosen to avoid cell damage ...
Hybrid lattice Boltzmann and finite volume method for fluid flow and heat transfer simulations
(University of Missouri--Columbia, 2015)
The fluid flow and heat transfer problems encountered in industry applications span into different scales and there are different numerical methods for different scales problems. Multiscale methods are needed to solve ...
Numerical investigation of two phase flow using automatic controller system and chaotic approach
(University of Missouri--Columbia, 2016)
An automatic and intelligent system to recognize the two-phase water-air flow regime in a vertical tube based on fuzzy logic and genetic algorithm is proposed. Two approaches, volume of fluid (VOF) and Eulerian model, were ...