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Effect of chip thickness, sub-critical bifurcations and process parameters in high-speed milling
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The main focus of the current research is to experimentally and numerically investigate of subcritical bifurcations in milling accounting for actual ...
Electron emission thermal energy conversion
(University of Missouri--Columbia, 2010)
Electron emission from a surface can be achieved via two mechanisms: tunneling and thermionics. Converting thermal energy to electrical power using these mechanisms is achieved by generation of an electron current from the ...
An axisymmetric interfacial tracking model for melting-vaporization-resolidification in a thin metal film irradiated by pico to femtosecond pulse lasers
(University of Missouri--Columbia, 2010)
A two dimensional axisymmetric, interfacial tracking method is developed to model rapid melting and solidification of a free standing metal film subjected to an ultra-short laser pulse. Finite volume method is employed to ...
Analysis of oscillatory flow and heat transfer in an oscillating heat pipe
(University of Missouri--Columbia, 2010)
An advanced physical and theoretical model of a U-shaped minichannel - a building block of an Oscillating Heat Pipe (OHP) - has been developed step by step. a) The gravity and pressure loss at the bend are included in the ...
Developing new fitted closure approximations for short-fiber reinforced polymer composites
(University of Missouri--Columbia, 2010)
Short-fiber polymer composites are greatly used throughout the industry for many applications. The orientation state of the short-fibers within the matrix defines the material properties of the composite structure. It is ...
A high efficiency ejector refrigeration system
(University of Missouri--Columbia, 2010)
In a time when efforts to reduce high-grade energy consumption are a necessity, it is useful to develop innovative alternatives to technologies that involve large amounts of power consumption, such as vapor compression ...
An investigative approach to explore optimum assembly process design for annular targets carrying leu foil
(University of Missouri--Columbia, 2013)
Technetium-99m is the most widely used nuclear isotope in the medical field, with nearly 80 to 85% of all diagnostic imaging procedures. The daughter isotope of molybdenum-99 is currently produced using weapons-grade ...
Parametric and nonparametric dynamical system identification using laser-measured velocities
(University of Missouri--Columbia, 2014)
Granular particle packing process study using DEM method
(University of Missouri--Columbia, 2014)
Hydraulic efficiency of a hydrostatic transmission with a variable displacement pump and motor
(University of Missouri--Columbia, 2012)
Pumps and motors are commonly connected hydraulically to create hydrostatic drives, also known as hydrostatic transmissions. A typical hydrostatic transmission consists of a variable displacement pump and a fixed displacement ...
Modeling and evaluation of EML rail cooling methods through finite element analysis
(University of Missouri--Columbia, 2012)
Future naval tactical Electromagnetic Launchers (i.e. Railguns) will need to be capable of repeatedly firing six to twelve rounds per minute. Due to the 1 - 6 MA of current flowing through the rails, an intense active ...
Innovative design of metamaterial structures for elastic wave absorption and structural vibration suppression
(University of Missouri--Columbia, 2014)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] This dissertation presents the design procedures, the modeling techniques and the working mechanism of metamaterial structures for wide-band elastic ...
Damage inspection of isotropic/multi-layer plates by time-frequency analysis of Lamb waves
(University of Missouri--Columbia, 2014)
Finite element analysis of patient specific sacroiliac joint
(University of Missouri--Columbia, 2014)
Positive displacement fluid flutter using plate strain energy deflection
(University of Missouri--Columbia, 2013)
In nature, there exist highly evolved mechanical systems which exploit passive mechanical compliance and material property transients to impart hydraulic actuation and fluid motion. The human heart generates blood flow ...
Theory and development of a camera-based noncontact vibration measurement system
(University of Missouri--Columbia, 2012)
Dramatic advancement in technologies for high-speed high-resolution digital cameras in recent years enables the development of camera-based full-field noncontact measurement systems for vibration testing of flexible multibody ...
Entropy generation and thermal performance of a pulsating heat pipe
(University of Missouri--Columbia, 2012)
A U-shaped pulsating heat pipe is an excellent heat transfer performance device. This study has been investigated step by step. a) The entropy generation is based on the second law of thermodynamics. In the present study, ...
Investigation of plasmaion vapor deposition (IVD) hybrid coatings for corrosion protection and plasma destruction of oral bacteria
(University of Missouri--Columbia, 2013)
This dissertation reports the research results obtained in investigating low pressure plasma coatings for corrosion protection of aluminum ion vapor deposition (IVD) coated high-strength steels and in studying atmospheric ...
Thermal mehcanical hydraulic experimental tools for molybdenum-99 production target analysis
(University of Missouri--Columbia, 2013)
As the nuclear community adapts to meet a constantly changing environment driven by policy development, so must the technology associated; in particular is the case of technology qualification. While government institutions ...
Experimental design and modeling of a microscale differential thermal calorimeter for the purposes of cryopreservation
(University of Missouri--Columbia, 2013)
In order to develop successful cryopreservation protocols for various biological materials, it is necessary to determine the thermodynamic properties of nanoliterscale biological samples: ranging from heat capacity to heat ...