Accelerated life testing; Reliability (Engineering); Service life (Engineering)
This dissertation is focused on finding lower confidence limits for the reliability of systems consisting of Wei bull components when the reliability demonstration testing (RDT) is conducted with zero failures. The usual methods for the parameter...
Microelectromechanical systems; Biotelemetry; Strains and stresses--Measurement
Lumbar arthrodesis or spinal fusion is usually performed to relieve back pain and regain functionality from ruptured discs, disc degenerative disease, trauma and scoliosis. Metal rods are often fixed to the spine with screws or hooks, while fusion...
Aortic Valve Bypass surgery has found renewed interest to researchers due to its application in high-risk patients with severe aortic stenosis. This therapy consists of construction of a conduit containing a bioprosthetic or mechanical valve from...
Osteoporosis has become a growing health threat with rising social and economic consequences. The understanding of the relationship between bone mechanical strength and bone structural quality is important for the diagnosis of osteoporosis and the...
Supervisory Control and Data Acquisition (SCADA) systems are used in almost
all industrial processes including use in the nation's critical infrastructure. The electric,
water, and gas industries are merely a few that rely heavily on the use of...
Supervisory control systems--Security measures; Automatic data collection systems--Security measures; Drinking water--Security measures; Computer networks--Security measures
Supervisory control and data acquisition (SCADA) systems are used by many critical infrastructures including electric power production and distribution, water and waste water treatment, rail transportation, and gas and oil distribution. Originally...
Wounds and injuries--Treatment; Drug delivery systems
Wounds care and management is one of the most basic needs in the medical setting. Burn wounds, trauma wounds, pressure ulcers and bedsores are just some of the many types of wounds that need to be treated quickly and efficiently. Take for instance...
Java (Computer program language); Application software--Development
The purpose of this thesis is to design, implement, and evaluate a software package that is mutli-platform and will provide software integrity management (SIM). The software package is implemented in Java and will perform two hashing algorithms,...
Athletic shoes; Foot--Wounds and injuries--Prevention
The purpose of this investigation was to determine if cycling shoes made with stiff material cause an increase in peak plantar stress over shoes with less stiff material. Shoe stiffness measurements were collected under controlled conditions and in...
The use of fiber reinforced polymer materials (composite FRP materials) to
strengthen existing concrete structures continues to expand as our current infrastructure
ages. However, one of the concerns when using FRP systems in this manner is...
Three lab concrete mixes and one field concrete mix were evaluated to establish
the Air Void Analyzer (AVA) as a means of real-time, ���In-the-Field��, Quality Control
testing method. In this study, both the Air Void Analyzer and...
A combination of three techniques – high resolution micro computed tomography (micro CT) scanning, Archimedes-based volume fraction measurement and serial sectioning or milling – were used to determine the volume fraction, trabecular thickness,...
Digital control systems; Computer security; Process control--Computer programs; Supervisory control systems--Security measures
Supervisory control and data acquisition (SCADA) systems are networked control systems used in many critical infrastructure areas such as power water and transportation. Many of these systems continue to use legacy field devices that lack cyber...
Cardiac mapping has become an important area of research for understanding the mechanisms responsible for cardiac arrhythmias and the associated diseases. Current technologies for measuring electrical potentials on the surface of the heart are...
This research was performed to establish the feasibility of using Direct Metal Deposition (DMD) technology to deposit nickel powder to a nickel substrate. The substrate is electrodeposited pure nickel, and the material to be deposited is Metco...
The aim of this study was to determine if playing 5 soccer matches in 4 weeks after 8 weeks of strength, conditioning and soccer training further improves aerobic and anaerobic performances. Ten college soccer players (20.1 ± 1.2 yr) completed...
Supervisory control systems--Security measures; Computer security; Security systems
This thesis documents the successful development and testing of a more secure industrial control system field device architecture and software. The implementation of a secure field device has had limitations in the past due to a lack of secure...
The heat pipe augmented solar wall operates much more efficiently for domestic air heating than alternative passive solar technologies. The thermal diode effect of heat pipes reduces the insulating losses of the unit during nighttime and adverse...
Middle school teachers--Kentucky; Middle school students--Kentucky; Academic achievement; Teachers--Job satisfaction--Kentucky; School environment--Kentucky
This quantitative study focused on 760 Kentucky middle school teachers in 28 school districts across the state of Kentucky. The Pearson r was used to determine the relationship between the following variables identified in the study: (a) school...
The purpose of this study was to compare the differences between 2 sets of ballistic stretching and 2 sets of a dynamic stretching routine on vertical jump performance. The intraclass reliability coefficients for maximum jump height, force, and...
