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Now showing items 201-210 of 234
Experimental Investigation of Flow Boiling Characteristics of an Immersion Cooled Server Model
(2017-07-27)
The meteoric growth of global communication and networking infrastructure has resulted in demand for high-performance data centers. With the increase in power capacity of server electronics, thermal management of data ...
Aging Induced Evolution of the Fatigue Behavior and Microstructure of Sn-Ag-Cu Lead Free Solders
(2017-07-31)
Solder joints in electronic assemblies are often subjected to cyclic (positive/negative) mechanical strains and stresses. Such exposures can occur in variable temperature application environments or during accelerated ...
Simultaneous Estimation of State of Charge and State of Health of a Large Format Li-ion Cell based on an Equivalent Circuit Model
(2019-07-29)
Accurate estimations of the state of charge (SOC), capacity fade (SOHQ) and power fade (SOHP) are critical for ensuring safe and reliable operations of Lithium-ion batteries. Traditional estimation methods using complex ...
A Finite Element Study of an Elastic- Plastic Axisymmetric Sinusoidal Surface Asperity in Contact Against a Rigid Flat with Strain Hardening
(2018-04-17)
With the advancement in science and the introduction of new technology, computational modelling of contact between rough surfaces has attracted a great deal of attention. Researchers have developed many rough surface contact ...
Why do Growing Cracks Branch? An Optical Investigation of Brittle Monolithic and Bilayer Transparencies Under Stress Wave Loading
(2017-02-28)
Understanding the fracture mechanics of materials due to stress wave (or impact) loading under combined tensile and shear (mixed-mode) conditions is important for two opposing reasons: (a) for creating impact resistant ...
Error Analysis of Carrier Phase Positioning Using Controlled Reception Pattern Antenna Arrays
(2017-04-16)
This thesis analyzes and provides algorithms that protect against various carrier phase positioning errors caused by anti-jamming algorithms commonly used to position in a jamming environment. These position errors include ...
Parametric Development of Cold Metal Transfer Wire Arc Additive Manufacturing
(2017-11-20)
Current commercial metal additive manufacturing techniques offer great accuracy and detail in small parts but are characterized by low deposition rates, high cost, and limited scale. This research seeks to develop, review, ...
Deterministic Elastic-Plastic Modelling of Rough Surface Contact including Spectral Interpolation and Comparison to Theoretical Models
(2017-11-17)
Rough surfaces can be seen everywhere in our world, such as on table surfaces, roads, or cellphone screens. The interactions of rough surfaces are essential problems because they govern friction, wear, contact resistance ...
Acoustic Metamaterials: Air Permeable Super Sound Attenuators and Acoustic Metalenses
(2019-07-23)
In recent decades, acoustic metamaterials have become more practical for diverse applications of sound manipulation, rather than academic curiosities and theoretical derivations. This kind of artificial material demonstrates ...
Characterization of Moisture and Thermally Induced Die Stresses in Microelectronic Packages
(2017-09-20)
Moisture has been one of the major concerns for package designers and reliability researchers. It is well-known that high humidity combined with high temperature can cause a number of failure modes to electronic devices, ...