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Now showing items 41-60 of 274
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 ...
Evaluation of 3d printed polycaprolactone hydroxyapatite tissue scaffolds created using fused deposition modeling
(University of Missouri--Columbia, 2017)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Biomaterial tissue scaffolds continue to grow as a potential solution for drug release and regenerative medicine. With the growing technology of 3D ...
Multiscale modeling and simulation of laser interaction with metals
(University of Missouri--Columbia, 2016)
The electron temperature dependent electron heat capacity, electron thermal conductivity and effective electron-phonon coupling factor are modeled and computed on the basis of ab initio quantum mechanics (QM) calculation. ...
Condition monitoring of an axial piston pump utilizing the Kalman filter
(University of Missouri--Columbia, 2018)
Condition monitoring of a hydraulic pump is an essential process for maximum operational time and pump life longevity. One method of condition monitoring is to estimate parameters characterized by flow losses. Even in a ...
Study of micro-sized particle deposition using DEM, CFD-DEM and SPH approach
(University of Missouri--Columbia, 2016)
Self-assembly and packing of colloids and micro or nano scale particles has become a subject of great interest due to widespread advancement of micro-scale technologies. In this thesis, several numerical analyses are ...
Inlet metering pump analysis and experimental evaluation with application for flow control
(University of Missouri--Columbia, 2017)
Axial piston pumps with variable volumetric displacement are often used to control flow and pressure in hydraulic systems. The displacement control mechanism in these pumps occupies significant space and accounts for ...
An integrated modeling approach for design and optimization of ejector pumps carrying two-phase fluid
(University of Missouri--Columbia, 2017)
An ejector pump uses a primary flow as a motive fluid to entrain another fluid, and can work with both incompressible flow and compressible flow, in either as a singlephase or two-phase mixture. Determining the behavior ...
Investigation of mechanical behavior of closed-cell aluminum foam reinforced with carbon nanotubes under dynamic loadings /
(University of Missouri--Columbia, 2016)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Aluminum foams represent a unique class of solid cellular light metals that can undergo large deformations at a nearly constant stress known as Plateau ...
Graphene-SiC particle reinforced aluminum alloy composite foam : response to high strain rate deformation
(University of Missouri--Columbia, 2016)
Aluminum foams are becoming potential material for multifunctional applications because it is lightweight and has excellent combination of physical and mechanical properties and noise and vibration mitigation characteristic. ...
On-plane flexible and solid-state rechargeable lithium-MnO2 microbatteries from laser induced graphene
(University of Missouri--Columbia, 2016)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The thesis presents a flexible and solid state Li-MnO2 microbattery based on laser induced graphene (LIG) produced from commercial polyimide. To achieve ...
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 ...
An investigation into thermoelectric coolers
(University of Missouri--Columbia, 2018)
A thermoelectric cooler (TEC) is a type of cooler that uses the electricity between the junction of two materials to cause a temperature drop. These coolers operate using the Peltier effect. Effectively, a TEC uses electrical ...
Design of a customized, semi-autonomous, single arm robotic manipulator for a hazardous environment
(University of Missouri--Columbia, 2016)
The purpose of this project is to build upon past research to develop and implement a cost effective, reliable single-armed robotic manipulator that can be used to perform repetitive tasks in the radioactive environment ...
Condition-based monitoring system for diagnostics and prognostics of centrifugal pumps
(University of Missouri--Columbia, 2016)
Centrifugal pumps are the most commonly used pumps in industry. Therefore, maintenance is a very important part of the pump's life cycle. This work presents a systematic robust conditionbased monitoring process for diagnostics ...
Heat transfer analysis in a finned heat sink embedded with two-phase heat pipes
(University of Missouri--Columbia, 2016)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The semiconductor technology development, as fast as consumer demands, led to advancements in miniaturization and power of computer chips. The low ...
Mechanical behavior of transparent fiber reinforced polyester composites at extreme temperatures
(University of Missouri--Columbia, 2018)
Selecting materials for harsh or extreme environmental conditions can be a challenge. The combination of a harsh environment, large forces over extended periods and the need for lowest possible cost restricts the choice ...