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6 results on '"Riley, Shaun"'

2. Utilising 3D printing techniques when providing unique assistive devices : a case report

Author

Day, Sarah Jane and Riley, Shaun Patrick

Subjects
TA164
Abstract

Background – The evolution of 3D printing into prosthetics has opened conversations about the availability, and cost of prostheses. This report will discuss how a Prosthetic team incorporated additive manufacture techniques into the treatment of a patient with a amputation to create and test a unique assistive device which he could use to hold his French horn. Case Description and Methods –Using a process of shape capture, photogrammetry, CAD and Finite Element Analysis (FEA), a suitable assistive device was designed and tested. The design was fabricated using 3D printing. Patient satisfaction was measured using a Pugh’s Matrix, and a cost comparison was made between the process used and traditional manufacturing. Findings – Patient satisfaction was high. The 3D printed devices were 56% cheaper to fabricate than a similar laminated device. Outcome and Conclusion – CAD and 3D printing proved an effective method for designing, testing and fabricating a unique assistive device.

Published
2018

4. Stig increases output from aeroderivative gas turbines

Author

Riley, Shaun T. and Kolp, Don A.

Subjects
General Electric Co. -- Product information, Industrial equipment and supplies industry -- Product information, Cogeneration power plants -- Equipment and supplies, Gas-turbines -- Innovations, Business, Petroleum, energy and mining industries
Abstract

Stig increases output from aeroderivative gas turbines The Steam Injected Gas turbine system, or STIG system, was introduced to the cogeneration world in the mid-1980s, as part of an evolution [...]

Published
1990

5. An economic analysis of the demand for cannabis: some results from South Africa.

Author

Riley, Shaun, Vellios, Nicole, and van Walbeek, Corné

Subjects
*MEDICAL marijuana laws, *INCOME, *SURVEYS, *MEDICAL marijuana, *COST analysis, *CROSS-sectional method
Abstract

Background: The full legalization of cannabis is currently being deliberated in South Africa. We aim to better understand how the market operates by investigating how cannabis consumers respond to price changes and what factors are associated with the price that consumers pay. Methods: We estimate the conditional price elasticity of demand using data on price, quantity, and quality from a cross-sectional survey of cannabis consumers across South Africa. We also investigate to what extent quality, quantity bought, income, and demographic variables influence the price paid for cannabis. Results: The price of cannabis differs greatly by quality: medium-quality is almost double the price of low quality, while the price of high-quality cannabis is nine times that of low-quality cannabis. Depending on the model specification, we estimate that a 10% increase in the price per gram of cannabis is associated with an approximate 5–6% decrease in the quantity demanded. There is some evidence that the demand for medium- and high-quality cannabis is more price elastic than low quality. The price per gram is negatively associated with the quantity purchased and positively associated with income. Conclusions: Price is a significant determinant of cannabis consumption. Increases in prices result in a decrease in quantity demanded. [ABSTRACT FROM AUTHOR]

Published
2020
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