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Incorporating Rigorous Height Determination into Unified Fracture Design
(2010-10-12)
Hydraulic fracturing plays an important role in increasing production rate in tight
reservoirs. The performance of the reservoir after fracturing can be observed from the
productivity index. This parameter is dependent on ...
An Investigation of Regional Variations of Barnett Shale Reservoir Properties, and Resulting Variability of Hydrocarbon Composition and Well Performance
(2010-07-14)
In 2007, the Barnett Shale in the Fort Worth basin of Texas produced 1.1 trillion cubic feet (Tcf) gas and ranked second in U.S gas production. Despite its importance, controls on Barnett Shale gas well performance are ...
Unmanned Cooperative Fire-Seeking and -Fighting Robot with Bluetooth Communication and Stair-Climbing Capability
(2010-07-14)
This thesis presents a prototype of Unmanned Cooperative Fire-Seeking and
-Fighting Robots (UCSFRs) which have a new way to climb up the stairs or traverse over
obstacles with a ball screw. There are three unmanned vehicles ...
Effect of Load Path on Mode of Failure at the Brittle-ductile Transition in Well-sorted Aggregates of St. Peter Sand
(2010-10-12)
Granular aggregates of quartz subjected to triaxial compression under constant
effective pressures (Pe) undergo macroscopic failure at critical stress states that depend
on the effective mean stress. Although the mode ...
Coding Techniques for Error Correction and Rewriting in Flash Memories
(2010-10-12)
Flash memories have become the main type of non-volatile memories. They
are widely used in mobile, embedded and mass-storage devices. Flash memories store
data in floating-gate cells, where the amount of charge stored ...
Experimental Evaluation of New Generation Aggregate Image Measurement System
(2010-07-14)
The performance of hot mix asphalt, Portland cement concrete, unbound base, and subbase layers in a pavement are significantly affected by aggregate shape characteristics. Classification of coarse and fine aggregate shape ...
Techniques in Active and Generic Software Libraries
(2010-07-14)
Reusing code from software libraries can reduce the time and effort to construct software
systems and also enable the development of larger systems. However, the benefits
that come from the use of software libraries may ...
A Preliminary Reconstruction of the Yassiada Sixteenth-Century Ottoman Wreck
(2010-07-14)
While excavating a late fourth-century Roman merchantman off the coast of
Yassiada, Turkey in 1967, archaeologists discovered another, more recent wreck lying
across the stern of the Roman wreck. The artifact assemblage, ...
Development of a Novel Linear Magnetostrictive Actuator
(2010-10-12)
This dissertation presents the development of a novel linear magnetostrictive actuator. The magnetostrictive material used here is Terfenol-D, an alloy of the formula Tb0.3Dy0.7Fe1.92. In response to a traveling magnetic ...
Large Eddy Simulations of Jet Flow Interactions Within Rod Bundles
(2010-07-14)
The present work investigates the turbulent jet flow mixing of downward
impinging jets within a staggered rod bundle based on previous experimental work.
The two inlet jets had Reynold's numbers of 11,160 and 6,250 and ...