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Experimental and theoretical investigation of saturated flow boiling of R410A refrigerant and nanoparticle laden lubricant mixtures in a smooth tube.
(2019-07-29)
In air conditioning systems, a small amount of lubricating oil inevitably leaves the compressor and circulates through the other components. This lubricant acts as a contaminant affecting heat transfer and pressure losses ...
Fiducial Marker-Based Motion Capture System for Biomechanics and Lower Limb Prosthesis Alignment
(2019-07-15)
Lower limb loss is a disability that is currently estimated to affect more than one million Americans. Development of lower limb prostheses has allowed the amputee to regain their mobility to some extent and reengage in ...
Sensing, Classifying Movements, and Actuation of Biomimetic Robots
(2019-07-15)
Human skeletal muscle motion is a complex electrical, chemical, and mechanical process. The electrical, or electromyography, signal originates from the brain and travels to the muscle initiating the contraction of the ...
Computational and Experimental Investigation of Oil Separation from an Oil-Water Two-Phase Pipe Flow and Its Accumulation in a Subsea Dead-Leg
(2019-07-23)
Both 2- and 3-dimensional transient computational studies of two-phase turbulent flow within a horizontal channel/pipe with a vertical capped dead-leg placed downstream of an oil/water supply source simulating parts of a ...
The Frictional Impact of Two Link Chain with a Flat
(2019-04-16)
Mechanical impact is an important phenomena in mechanical systems such as robotics,
multibody systems, spacecraft vehicles, ground vehicles, etc. It is a complex phenomenon that
occurs when two or more bodies collide. ...
Experimental Methods for the Analysis of Frost Nucleation and Frost Growth on Hydrophilic and Hydrophobic Coated Flat Plate Surfaces in Forced Convection Channel Flows
(2019-12-09)
An experimental system was designed and built to explore the effect of coated surfaces on frost formation. The experimental system consists of a wind tunnel test apparatus, dew point sensors, thermocouples for temperature ...
Accelerated Lifetime Characterization and Development of Test Protocols for Class I/Class II Micro-Machined Sensors and Flexible Li-ion Power Sources
(2019-04-03)
Modern day applications have led to extensive miniaturization of consumer electronics along with incorporation of state-of-the-art sensor devices and acceptance of flexible materials within an electronic assembly. With the ...
Analysis and Control of Dynamical Systems with Quasi-Periodic Coefficients
(2019-05-08)
Parametrically excited linear systems with oscillatory coefficients have been generally modeled by Mathieu or Hill equations (periodic coefficients) because their stability and response can be determined by Floquét theory. ...
Pedestrian Navigation using Particle Filtering and a priori Building Maps
(2019-05-16)
This thesis presents a new particle filter (PF) weight update method that improves the performance of indoor positioning systems. In standalone inertial pedestrian-dead-reckoning (PDR) systems, the position error grows ...
Advances in Digital Gradient Sensing (DGS) Method for Experimental Mechanics
(2019-09-19)
Shape and surface topography evaluation from measured slopes is of considerable engineering significance in optical metrology and experimental mechanics. These kinematic quantities are often used for metrology of optical ...