“I worked with Rick on a project to review the CAPA system. I found Rick to be methodical, open minded, and systematic in his analysis and review of issues. He is very personable and a solid team player. It was a real pleasure to witness his leadership and thoughtfulness.”
Rick Erickson, P.E.
Colorado Springs, Colorado, United States
4K followers
500+ connections
Colorado Springs, Colorado, United States
4K followers
500+ connections
About
More than thirty-five years risk management, product safety and regulatory compliance…
Experience
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Education
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The University of Texas at Austin
Thesis research on the measurement and signal processing of surface electromyographic activity from the forearm muscle during manual control tracking task.
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Licenses & Certifications
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Professional Engineer
Licensed Professional Engineer in the State of Texas
Issued ExpiresCredential ID 65846
Publications
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In Vitro Study on Mechanical Heart Valve Sound Loudness as Measured by ISO-532/B
IEEE
See publicationA special test chamber and measurement procedure was developed for in-vitro study of heart valve sound loudness. Loudness is measured with ISO-532/B (Zwicker method). An initial study was performed on eight different models of size 25 aortic mechanical valves
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An In Vitro Study on Mechanical Heart Valve Sound Loudness
Journal Heart Valve Disease
See publicationThe purpose of the study was to measure the valve sound loudness of eight 25 mm aortic mechanical heart valve prostheses under controlled laboratory conditions in an isolated acoustic environment. A specially designed single-chamber pulse duplicator was constructed within an anechoic box that isolated the sounds of the valve from external noise. The valves were closed with a stimulated aortic pressure waveform of three different amplitudes. Valve sound loudness was measured with ISO-532/B…
The purpose of the study was to measure the valve sound loudness of eight 25 mm aortic mechanical heart valve prostheses under controlled laboratory conditions in an isolated acoustic environment. A specially designed single-chamber pulse duplicator was constructed within an anechoic box that isolated the sounds of the valve from external noise. The valves were closed with a stimulated aortic pressure waveform of three different amplitudes. Valve sound loudness was measured with ISO-532/B (Zwicker method), which is based on a model of loudness perception that is better than dB(A), the traditional A-weighted sound pressure level.
Languages
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English
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Spanish
Elementary proficiency
Recommendations received
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