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The design, instrumentation, and validation of a multiphase shock tube facility
(University of Missouri--Columbia, 2017)
This paper investigates the experimental work in Shock Driven Multiphase Instabilities (SDMI). SDMIs occur when an interface consisting of a particle seeded gas is instantaneously accelerated and begins mixing. SDMIs have ...
Analysis of resonant ultrasound spectroscopy as a technique to evaluate material property changes
(University of Missouri--Columbia, 2017)
The objective of this thesis is to validate Resonant Ultrasound Spectroscopy (RUS) as a non-destructive evaluation tool that can be used to study effects of radiation on the mechanical properties of a material, mainly its ...
Heat transfer enhancement of vapor condensation heat exchanger
(University of Missouri--Columbia, 2017)
A typical vapor condensation condenser consists of two major heat transfer processes, i.e., vapor condensation and forced convection. In order to enhance heat transfer, the condensation heat transfer utilizing the porous ...
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 ...
Electromechanical evolution of Carbon nanotube-coated microfibers
(University of Missouri--Columbia, 2017)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Carbon nanotubes (CNTs) are best described as seamless cylindrical hollow fibers, comprised of a single sheet of pure graphite with extremely light ...
Theoretical and experimental study of an evaporative cooler embedded with parallel plates
(University of Missouri--Columbia, 2017)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] In the current investigation, a theoretical model predicting the temperature variation of ambient air flowing through an evaporative cooler embedded ...
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, ...
Research & development of Q-Baller -- a spherical wheeled robot
(University of Missouri--Columbia, 2017)
The Spherical Wheeled Robot (Ball-Bot) is a family of robots that can maintain balance standing on a ball and use it as its wheel to move around. In recent years, there have been several successful Ball-Bot designs. We ...
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 ...
Development of predictive models for the coalescence of fused deposition modeling fibers
(University of Missouri--Columbia, 2017)
Fused deposition modeling (FDM) is the prominent manufacturing method for fabricating end-use parts due to the ability to build complicated structures. In order to be used confidentially in the industry requires a thorough ...
Hybrid atomistic-continuum simulation of nucleate boiling with domain re-decomposition method
(University of Missouri--Columbia, 2017)
The bubble nucleation plays a pivotal role in the boiling process. In order to have a comprehensive understanding of this phenomenon, a critical consideration on fluid-solid interaction at atomistic level is imperative. ...
Signal procession of single measurand for dynamical system identification /
(University of Missouri--Columbia, 2017)
Accurate damage inspection and reliable health monitoring of dynamical systems rely on accurate dynamical data computation. In theory, if all three variables (i.e., displacement, velocity, and acceleration) of each point ...
Fabrication and testing of a tool for thermodynamic characterization of micro-samples
(University of Missouri--Columbia, 2017)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Cryopreservation utilizes very low temperatures to preserve living cells and tissues. Successfully cryopreservation protocols for a limited number of ...
Liquid metal heat sink for laptop computers
(University of Missouri--Columbia, 2017)
With the rapid miniaturization of the electronic systems, heat generation in the components becomes a major concern for thermal management. The high density of heat generation can be a bottleneck to attain higher performance ...
Estimation of model states for a hydraulic valve system using an extended Kalman filter
(University of Missouri--Columbia, 2017)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Pilot valves are considered as one of most common types of valves in the industry today. They are widely-used because their design is simple, they are ...
A parametric study of a curved nuclear fuel plate in a narrow channel using numeric fluid structure interaction modeling
(University of Missouri--Columbia, 2017)
In 2004 the Global Threat Reduction Initiative (GTRI) was established by the National Nuclear Security Administration (NNSA) to quickly identify, secure, remove and/or closely monitor nuclear and radiological materials ...
Hybrid thermoelectric ejector - refrigeration system
(University of Missouri--Columbia, 2017)
A mathematical model is developed to predict the refrigeration performance of an ejector powered by waste energy from a thermoelectric cooler. The model is based on constant pressure mixing process and considers the effect ...
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 ...