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Now showing items 41-60 of 322
Modeling of thin film evaporation heat transfer and experimental investigation of miniature heat pipes
(University of Missouri--Columbia, 2008)
The heat pipe, as one of the most efficient heat transport devices, is a peerless choice in the electronic cooling field. In order to better understand the heat transfer mechanisms of the heat pipe, a heat transfer model, ...
Physical implications of characteristic speeds and waveforms of rails on elastic foundations
(University of Missouri--Columbia, 2012)
When a moving load is applied on an elastic rail with an elastic insulator, wave propagation can occur and become problematic after certain characteristic speeds are reached. Research of these waveforms and characteristic ...
Fabrication and characterization of heat flux sensor using polymer derived ceramics
(University of Missouri--Columbia, 2011)
In this study, a free standing Resistance Temperature Detector (RTD) sensor made from Polymer Derived Ceramics (PDCs) for high temperature application (above 1000[degrees]C) is fabricated. A newly developed fabrication ...
Fabrication and characterization of novel transparent laminated glass-composite panels for dynamic load mitigation
(University of Missouri--Columbia, 2014)
Characterization and nondimensional analysis of a variable speed centrifugal pump
(University of Missouri--Columbia, 2014)
When dealing with centrifugal pumps in the aerospace field, current industry standards dictate the use of single speed drive pumps. The performance of these pumps is then modulated using simply an electromechanical valve, ...
The study of dental composites containing hydroxyapatite nanofillers
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Dental composites have received widespread clinical acceptance as alternative restorative materials to dental amalgam for their better aesthetic ...
Effects of machining system parameters and dynamics on quality of high-speed milling
(University of Missouri--Columbia, 2013)
This dissertation outlines research on studying the effects of machining parameters such that cutting speed, feed rate, axial depth of cut, radial depth of cut and helix angle on system dynamic stability and the surface ...
The Design and analysis of a HA/PLA pedicle screw for spinal fusion
(University of Missouri--Columbia, 2011)
Metallic pedicle screws have been widely used in the orthopaedic field to treat spinal diseases. Although spinal screws have improved over the last few decades, there is still sometimes a need for a second painful surgery ...
A method of frequency domain error modeling to predict the probability of stability and performance of dynamic systems with parametric uncertainty
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] In this work a method is developed for modeling frequency domain error in dynamic systems with parametric uncertainty. Within any mass-manufactured ...
New tool design for measuring tool displacement in milling
(University of Missouri--Columbia, 2012)
Monitoring tool displacement during a milling process allows the operator to identify when there is relative movement between the cutting tool and the workpiece. When the relative movement between the cutting tool and the ...
Plasmonic Au nanostructures for surface-enhanced raman spectroscopy
(University of Missouri--Columbia, 2013)
Raman spectroscopy is a spectroscopic technique that provides rich structural information for identifying chemical species but finds limited applications owing to its low sensitivity. Surface-enhanced Raman spectroscopy ...
A comprehensive model for energy transport and ablation of metal films induced by ultrashort pulsed lasers
(University of Missouri--Columbia, 2012)
A comprehensive laser material ablation model was developed to describe energy transport, ultrafast phase changes, and material ablation of metal films irradiated by ultrashort laser pulses. The two optical models were ...
An investigation into gravity independent oscillating heat pipes
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] A number of oscillating heat pipes (OHPs) with unbalanced structures were investigated in an effort to develop methods enabling OHPs to be gravity ...
Design, analysis and dynamic phenomena of MEMS capacitive power harvester
(University of Missouri--Columbia, 2015)
Unwanted vibrations are all around us in our daily life. These vibrations can effectively be converted into electrical power through capacitive device. Even though the amount of power generated is small ([mu]W), it is still ...
Factors affecting oscillating motion and heat transfer in an oscillating heat pipe
(University of Missouri--Columbia, 2013)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] As demand has grown for thermal management solutions, interest in passive heat transfer devices such as heat pipes has grown as well. In particular, ...
Analysis of dual-phase ejector performance
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] An analytical model is proposed to extend the single-phase model for predicting ejector performance, particularly pressure recovery and efficiency, ...
Cruise flight optimization of a commercial aircraft with winds
(University of Missouri--Columbia, 2015)
With high prices for fuel and airfare, companies are looking to minimize operational costs. Reducing aircraft fuel consumption is one strategy companies use to lower costs. During flights, commercial aircraft divide the ...
Flooded two-phase flow dynamics and heat transfer with engineered wettability on microstructured surfaces
(University of Missouri--Columbia, 2015)
Due to excessive droplet feeding, a period of flooding occurs as part of a typical droplet based thermal management cycle. The conventional superhydrophilic surface, which is designed for thin film evaporation because of ...
Superharmonic Responses of an Oscillator with Impact
(University of Missouri--Columbia, 2015)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Superharmonic responses are characteristic of many nonlinear systems undergoing high intensity of excitation. Recent experimental investigation findings ...
Saddle point of attachment in horseshoe vortex system
(University of Missouri--Columbia, 2015)
Laminar juncture flow has been well studied experimentally and numerically in recent years. New topology upstream in terms of saddle point of attachment has been investigated by both approaches. In this work, the obstacle ...