Erica Ryherd

Erica Ryherd, PhD, LEED AP

Erica Ryherd
Contact Information:
PKI 101C
Scott Campus (Omaha)
(402) 554-4146
eryherd@unl.edu
Email   

Associate Professor of Architectural Engineering
Academic Degrees
  • Postdoctoral Research Fellow, Sahlgrenska Academy of Medicine at Gothenburg University (2007)
  • Ph.D. in Architectural Engineering, University of Nebraska - Lincoln (2006)
  • B.S. in Architectural Engineering, Minor in Music, Kansas State University (2001)
Areas of Research and Professional Interest
  • Engineering healthcare environments conducive to healthy occupant outcomes
  • Effects of sound on human perception, performance, and health
  • Multi-source, time-variant sound environments
  • Quantifying environmental noise and impacts
  • Acoustic venues, such as drama theatres and worship spaces
Courses Taught

About Erica Ryherd

Dr. Erica Ryherd is an Associate Professor in The Durham School of Architectural Engineering and Construction at the University of Nebraska – Lincoln. She specializes in engineering built environments that are conducive to good occupant outcomes. Areas of specialty include noise control, architectural acoustics, environmental noise, and human response to the built environment. Prior, she was an Associate Professor in the George W. Woodruff School of Mechanical Engineering and joint with the College of Architecture at the Georgia Institute of Technology, and a postdoctoral researcher in Occupational & Environmental Medicine at Gothenburg University in Sweden. She also has previous industry experience in acoustical and mechanical (HVAC) engineering which she integrates into her teaching and research.

Dr. Ryherd is actively engaged in research linking healthcare environmental systems (e.g., acoustics, lighting, and spatial layout) to patient and staff outcomes. She has worked with more than a dozen hospitals and a broad range of unit types including adult and neonatal intensive care, emergency, operating, long-term care, outpatient, mother-baby, and others. In 2010 she founded the Healthcare Acoustics Research Team (HART), an interdisciplinary collaborative of specialists in engineering, architecture, medicine, and other disciplines aimed at improving healthcare soundscapes. She received the ASA Hunt Postdoctoral Fellowship in 2007, a “Top 5 New Faces of Engineering” award from ASHRAE in 2008, served as a Technical Consultant to the Federal Aviation Administration (FAA) Office of Environment and Energy—Noise Division from 2010-2012, and was a 2014 Center for Health Design—Icons and Innovators Speaker. 



Experience

Academic Appointments:

  • Associate Professor, Architectural Engineering, University of Nebraska - Lincoln (2015-present)
  • Assistant Professor, Architectural Engineering, University of Nebraska - Lincoln (2014-15)
  • Associate Professor, Mechanical Engineering joint with Architecture, Georgia Institute of Technology (2013-14)
  • Assistant Professor, Mechanical Engineering, Georgia Institute of Technology (2007-13)
  • F.V. Hunt Postdoctoral Research Fellow, Occupational & Environmental Medicine, Sahlgrenska Academy of Medicine at Gothenburg University (2006-07)


Professional Affiliations:


Professional Credentials:

  • Leadership in Energy & Environmental Design (LEED) Accredited Professional (2008)





Honors and Awards

  • Acoustical Society of America Science Writing Award for Professionals in Acoustics (2017)
  • The Center for Health Design—Icons and Innovators Series Speaker (2014)
  • Georgia Tech Center for Teaching & Learning Thank a Teacher Recipient (2012)
  • Acoustical Society of America Women in Acoustics Young Investigator Travel Award (2009)
  • ASHRAE Top 5 “New Faces of Engineering” (2008)
  • Acoustical Society of America F.V. Hunt Postdoctoral Research Fellowship   (2006)

Selected Publications

Books:

  • D. Bradley, E. Ryherd, and L. Ronsse, Ed. (2016) Worship Space Acoustics: 3 Decades of Design. Springer, New York, NY. ISBN 978-1-4939-3096-8.
  • D. Bradley, E. Ryherd, and M. Vigeant, Ed. (2010) Acoustical Design of Theatres for Drama Performance: 1985-2010, Acoustical Society of America (ASA), Melville, NY. ISBN 978-0-9846084-5-4.


Book Chapters:

  • S. Okcu, E. Ryherd, and C. Bayer, (2013) “Chapter 9: Physical environment on student health and education in green schools,” in Environmental Health: The Home, the School and the Community. by L. Rubin and J. Merrick (Ed.), Nova Science, New York, NY. ISBN 978-1-62948-158-6.


Refereed Publications:

  • L. MacAllister, C. Zimring, and E. Ryherd (2016) "Environmental variables that influence patient satisfaction: A review of the literature," Health Environments Research and Design J. 10(1), 155-169.
  • K. Hadi, J. DuBose, and E. Ryherd (2016) “Lighting and nurses at medical-surgical units: Impact of lighting conditions on nurses’ performance and satisfaction,” Health Environments Research and Design J. 9(3), 17-30.
  • Thomas, J. Irizarry, E. Ryherd, D. Castro, and R. Porter (2014) “Aircraft sound transmission in homes categorized by typical construction type,” invited article in 2014 Construction Research Congress Proceedings.
  • S. Okcu, E.Shpuza, E. Ryherd, and C. Zimring (2013) “Linking acoustics and floor-plate shape qualities of healthcare settings,” Architectural Science Review 56(4), 315-332.
  • E. Ryherd, M. Moeller, Jr., and T. Hsu (2013) “Speech intelligibility in hospitals,” J. Acoustical Society of America 134(1), 586-595.
  • L. Johansson, I. Bergbom, K. Persson Waye, E. Ryherd, and B. Lindahl (2012) “The sound environment in an ICU patient room – a content analysis of sound levels and patient experiences,” Intensive and Critical Care Nursing 28(5), 269-279.
  • E. Ryherd, S. Okcu, C. Zimring, J. Ackerman, and K. Persson Waye (2012) “Noise pollution in hospitals: Impacts on staff,” J. Clinical Outcomes Management 19(11), 491-500.
  • S. Okcu, E. Ryherd, H. Pelton, and C. Zimring (2012) “Characterizing impulsiveness of hospital sound environments,” Noise Control Engineering J. 60(3), 246-257.
  • T. Hsu, E. Ryherd, K. Persson Waye, and J. Ackerman (2012) “Noise pollution in hospitals: Impacts on patients,” invited article in J. Clinical Outcomes Management 19(7), 301-309.
  • S. Ryherd, K. Persson Waye, M. Kleiner, and E. Ryherd (2012) “Influence of a wearer’s voice on noise dosimeter measurements,” J. Acoustical Society of America 131(2), 1183-1193.
  • S. Okcu, E. Ryherd, C. Zimring, and O. Samuels (2011) “Soundscape evaluations in two critical healthcare settings with different designs,” J. Acoustical Society of America 130(3), 1348-1358.
  • S. Okcu, E. Ryherd, and C. Bayer (2011) “The role of the physical environment on student health and education in green schools,” Reviews on Environmental Health 26(3), 169-179.
  • E. Ryherd, S. Okcu, T. Hsu, and A. Mahapatra (2011) “Hospital noise and occupant response,” invited article in ASHRAE Winter Mtg. Conf. Papers, Las Vegas, NV.
  • E. Ryherd and L. Wang (2010) “AB-10-018: The effects of noise from building mechanical systems with tonal components on human performance and perception (1322-RP),” ASHRAE Summer Mtg. Transactions, Albuquerque, NM, 116, pt. 2, 541-552.
  • H. Pelton, E. Ryherd, and M. Martin (2009) “Acoustical design of a burn acute care unit for enhanced patient comfort,” invited article in Noise Control Engineering J. 57(1), 32-41.
  • E. Ryherd (2008) “Acoustic design of music rehearsal rooms,” invited article in Physics Today Aug. 2008, 68-69.
  • E. Ryherd, K. Persson Waye, and L. Ljungkvist (2008) “Characterizing noise and perceived work environment in a neurological intensive care unit,” J. Acoustical Society of America 123(2), 747-756.
  • E. Ryherd and L. Wang (2008) “Implications of human performance and perception under tonal noise conditions on indoor noise criteria,” J. Acoustical Society of America 124(1), 218-226.
  • E. Ryherd and L. Wang (2007) “Effects of exposure duration and type of task on subjective performance and perception in noise,” Noise Control Engineering J. 55(3), 334-347.
  • E. Bowden (Ryherd) and L. Wang (2007) “Verifying two commercial software implementations of impulse-response-based speech intelligibility measurements,” Applied Acoustics 68(7), 717-728.
  • E. Bowden (Ryherd) and L. Wang (2005) “OR-05-6-4: Relating human productivity and annoyance to indoor noise criteria systems:  A low frequency analysis,” ASHRAE Winter Mtg. Transactions, Orlando, FL, 111, pt. 1, 684-692.
  • L. Wang and E. Bowden (Ryherd) (2003) “Performance review of indoor noise criteria,” Building Integration Solutions:  Architectural Engineering Institute Proceedings, Austin, TX (American Society of Civil Engineers/Architectural Engineering Institute) 116, 2.


Conference Proceedings:

  • N.Firesheets and E. Ryherd (2012) “Modeling aircraft noise reduction for typical home construction types,” Internoise 2012 Proceedings, New York, NY.
  • Mahapatra, E. Ryherd, H. Pelton (2012) “Comparing equivalent noise levels and percentile levels in healthcare spaces,” Internoise 2012 Proceedings,  New York, NY.
  • E. Ryherd, J. West, J. Ackerman, C. Zimring, and K. Persson Waye (2012) “Evaluating and improving hospital soundscapes,” Internoise 2012 Proceedings, New York, NY.
  • E. Ryherd, S. Okcu, T. Hsu, C. Zimring, and K. Persson Waye (2011) “Impact of intensive care unit noise on nurses,” 10th International Commission on Biological Effects of Noise (ICBEN) Proceedings, London, UK.
  • K. Persson Waye, E. Ryherd, T. Hsu, B. Lindahl, and I. Bergbom (2010) “Personnel response in intensive care units,” Internoise 2010 Proceedings, Lisbon, Portugal.
  • L. Johansson, I. Bergbom, K. Persson Waye, E. Ryherd, and B. Lindahl (2010) “Analyses of relationships between the sound environment at the ICU and intensive care delirium,” Internoise 2010, Lisbon, Portugal.
  • E. Ryherd and K. Persson Waye (2007) “Soundscape evaluations in adult intensive care units,” Noise-Con 2007 Conference Proceedings, Reno, NV.
  • E. Bowden (Ryherd) and L. Wang (2006) “Appropriate characterization of background noise levels in the workplace,” Architectural Engineering Institute 2006 Proceedings, Omaha, NE.
  • Jessica Errett, E. Bowden (Ryherd), Marc Choiniere, and L. Wang (2006) “Effects of noise on productivity:  Does performance decrease over time?” Architectural Engineering Institute 2006 Proceedings, Omaha, NE.
  • E. Bowden (Ryherd) and L. Wang (2006) “Evaluations of indoor noise criteria systems based on human response,” Noise-Con 2005 Conference Proceedings, Minneapolis, MN.
  • E. Bowden (Ryherd), L. Wang, and D. Bradley (2002) “Classroom acoustics in Omaha, Nebraska: Measurements and outreach,” Proceedings of the Pan-American/Iberian Meeting on Acoustics, Cancun, MX.



Magazine Articles:

  • E. Ryherd and C. Zimring (2010) “Too noisy to heal: Using advances in hospital acoustics to bridge the gap between architecture, engineering, and medicine,” Healthcare Design, Nov Issue.
  • E. Ryherd, J. West, I. Busch-Vishniac, and K. Persson Waye (2008) “Evaluating the hospital soundscape,” invited article In Acoustics Today 4(4), 22-29.
  • L. Wang and E. Bowden (Ryherd) (2006) “Finding connections among indoor noise criteria, human perception, and worker performance,” invited article in Acoustics Today 2(1), 31-35.




Recent Presentations

  • J. Weber, E. Ryherd, A. Darcy Mahoney, H. Cooper, M. Rolfes, and B. Cherven (2016) "Evaluating hospital quiet time from engineering, medical, and nursing perspectives,"  171st meeting of the Acoust. Soc. Am., Salt Lake City, UT.
  • D. Bradley, E. Ryherd, and L. Ronsse (2016) "The state of the art in worship space acoustics," 171st meeting of the Acoust. Soc. Am., Salt Lake City, UT.
  • E. Ryherd (2016) "The wide world of noise," 171st meeting of the Acoust. Soc. Am., Salt Lake City, UT.
  • J. Weber, E. Ryherd, A. Darcy Mahoney, H. Cooper, M. Rolfes, and B. Cherven (2015) “Measuring quiet time in neonatal intensive care units,” 170th meeting of the Acoust. Soc. Am., Jacksonville, FL.
  • R. Robért, K. Cunefare, E. Ryherd, and J. Irizarry (2015) “Measuring noise level reduction using an artificial noise source,” 170th meeting of the Acoust. Soc. Am., Jacksonville, FL.
  • J. Weber, E. Ryherd, A. Darcy Mahoney, H. Cooper, M. Rolfes, and B. Cherven (2015) “Promoting quiet NICU soundscapes,” Pediatric Healthcare Innovation Conference, Atlanta, GA.
  • E. Ryherd and K. Persson Waye (2015) “Prescribing healthy hospital soundscapes,” 169th meeting of the Acoust. Soc. Am., Pittsburgh, PA.
  • R. Robért, K. Cunefare, E. Ryherd, and J. Irizarry (2015) “Reproducibility and repeatability of measuring Noise Level Reduction using an artificial source,” 169th meeting of the Acoust. Soc. Am., Pittsburgh, PA.
  • E. Ryherd, J. Weber, A. Darcy Mahoney, I. Adams-Chapman, and J. Swann (2014) “Improving NICU soundscapes to improve outcomes,” Pediatric Healthcare Innovation Conference, Atlanta, GA.
  • H. Cooper, M. Rolfes, A. Darcy Mahoney, and E. Ryherd (2014) “Implementing EBP change: A collaboration between clinicians & academia,” Speaker / Panelist at Children’s Healthcare of Atlanta 5th Annual Nursing Research Symposium, Atlanta, GA.
  • Thomas, E. Ryherd, and T. Bowling (2014) “Simulated and laboratory models of aircraft sound transmission in residences,” 167th meeting of the Acoust. Soc. Am., Providence, RI.
  • E. Ryherd (2014) “Noise and its impact on our world,” 167th meeting of the Acoust. Soc.  Am., Providence, RI.
  • K. Persson Waye and E. Ryherd (2013) “Achieving a healthy sound environment in hospitals,” Persson Waye keynote at Internoise 2013, Innsbruck, Austria.
  • E. Ryherd, J. Ackerman, C. Zimring, and K. Persson Waye (2013) “The healthcare acoustics research team: Bridging the gap between architecture, engineering, & medicine,” 166th meeting of the Acoust. Soc. Am., San Francisco, CA.
  • N. Firesheets and E. Ryherd (2012) “Aircraft noise reduction for homes in various U.S. climate regions,” 164th meeting of the Acoust. Soc.  Am., Kansas City, MO.
  • G. Messingher, E. Ryherd, and J. Ackerman (2012) “Hospital noise and staff performance,” 164th meeting of the Acoust. Soc.  Am., Kansas City, MO.
  • E. Ryherd (2012) “Noise and its impact on our world,” 164th meeting of the Acoust. Soc.  Am., Kansas City, MO.
  • E. Ryherd (2012) “Hospital soundscapes: Understanding acoustics & occupant outcomes,” Acoust.Soc. Am. School 2012: Living in the Acoustic Environment, Kansas City, MO.
  • T. Hsu, M. Moeller, Jr. and E. Ryherd (2012) “Speech intelligibility in hospitals,” Acoustics 2012, Hong Kong, China.
  • E. Ryherd, K. Persson Waye, J. West, C. Zimring, and J. Ackerman (2012) “Emerging findings from the Healthcare Acoustics Research Team (HART),” Acoustics 2012, Hong Kong, China.
  • E. Ryherd, M. Hastings, and J. Doane (2012) “Acoustics and the Georgia Institute of Technology,” Acoustics 2012, Hong Kong, China.
  • E. Ryherd (2011) “Evaluating and improving hospital soundscapes,” Ecophon International Acousticians’ Seminar, Båstad, Sweden.
  • E. Ryherd (2011) “Emerging findings from the Hospital Acoustics Research Team (HART),” Ecophon International Acousticians’ Seminar, Båstad, Sweden.
  • Mahapatra, S. Okcu, E. Ryherd, J. Ackerman, and C. Zimring (2011) “Effects of noise on emergency department staff,” 161st meeting of the Acoust. Soc. Am., Seattle, WA.
  • T. Hsu, E. Ryherd, J. Ackerman, and K. Persson Waye (2011) “Psychoacoustic measures and their relationship to patient physiology in an intensive care unit,” 161st meeting of the Acoust. Soc. Am., Seattle, WA.
  • E. Ryherd (2011) “An introduction to the technical committee on noise,” 161st meeting of the Acoust. Soc. Am., Seattle, WA.
  • T. Hsu, E. Ryherd, J. West, C. Barnhill, and N. Levit (2011) “Comparing novel absorptive treatments in operating rooms,” 161st meeting of the Acoust. Soc. Am., Seattle, WA.
  • S. Okcu, E. Ryherd, and C. Zimring (2011) “Acoustics of interconnected nursing unit corridors,” 161st meeting of the Acoust. Soc. Am., Seattle, WA.
  • J. West and E. Ryherd (2011) “Evaluating the hospital soundscape,” Acoustics in Healthcare Applications Meeting sponsored by CertainTeed Ceilings, Philadelphia, PA.
  • E. Ryherd (2011) “Emerging findings from the Healthcare Acoustics Research Team (HART),” North Carolina Chapter of the Acoustical Society of America Regional Meeting, Chapel Hill, NC.
  • T. Hsu, E. Ryherd, J. Ackerman, and K. Persson Waye (2010) “Relating patient physiology to the hospital sound environment,” 2nd Pan-America/Iberian Mtg. Acoust., Mexico.
  • E. Ryherd (2010) “Hot topics in architectural acoustics,” 2nd Pan-America/Iberian Mtg. Acoust., Mexico.
  • E. Ryherd (2010) “Acoustics at the Georgia Institute of Technology,” 2nd Pan-America/Iberian Mtg. Acoust., Mexico.
  • S. Okcu, E. Ryherd, and C. Bayer (2010) “Greening school buildings in disadvantaged communities,” Break the Cycle of Environmental Health Disparities Conference, Atlanta, GA.
  • Barnhill, J. West, T. Hsu, E. Ryherd, and N. Levit (2010) “Further studies of hospital noise control at the Johns Hopkins Hospital: Part I,” 159th meeting of the Acoust. Soc. Am., Baltimore, MD.
  • T. Hsu, E. Ryherd, J. West, C. Barnhill, M. Swisher, and N. Levit (2010) “Further studies of hospital noise control at the Johns Hopkins Hospital: Part II,” 159th meeting of the Acoust. Soc. Am., Baltimore, MD.
  • S. Okcu, E. Ryherd, and C. Zimring (2010) “Hospital soundscape modeling,” 159th meeting of the Acoust. Soc. Am., Baltimore, MD.
  • E. Ryherd (2010) “Evaluating the hospital soundscape” Pennsylvania State University Graduate Program in Acoustics, State College, PA.
  • E. Ryherd and T. Lawrence (2009) “Updated ASHRAE guidelines on sustainable systems design,” 158th meeting of the Acoust. Soc. Am., San Antonio, TX.
  • T. Hsu, E. Ryherd, and K. Persson Waye (2009) “Evaluating the intensive care unit soundscape,” 157th meeting of the Acoust. Soc. Am., Portland, OR.
  • S. Okcu, E. Ryherd, and C. Zimring (2009) “Comparing the sound environments in two critical care settings,” 157th meeting of the Acoust. Soc. Am., Portland, OR.
  • E. Ryherd (2009) “Characterizing the hospital acoustic environment and occupant response,” 2009 ASHRAE Winter Meeting, Chicago, IL.
  • E. Ryherd (2009) “Psychological and physiological effects of sound,” Joint Conference of National Society of Black Physicists (NSBP) & National Society of Hispanic Physicists (NSHP), Nashville, TN.
  • E. Ryherd (2009) “Evaluating the hospital soundscape” National Center for Rehabilitative Auditory Research (NCRAR) of U.S. Department of Veterans Affairs (VA), Portland, OR.
  • E. Ryherd (2009) “The sound environment in hospitals: help or hurt?” Keynote Speaker, Georgia Tech 2nd Annual Faculty Lecture sponsored by the Georgia Tech Women’s Club.
  • E. Ryherd (2009) “Impact of the indoor soundscape on occupants,” Vanderbilt University Department of Hearing and Speech Sciences, Nashville, TN.
  • S. Okcu, C. Zimring, and E. Ryherd (2008) “Developments in aural connectivity: Enhancing sound environments in critical care settings for effective nurse auditory monitoring,” 155th meeting of the Acoust. Soc. Am., Paris, France.
  • E. Ryherd and K. Persson Waye (2008) “Describing the sound environment of the neurological ICU and personnel response,” 155th meeting of the Acoust. Soc. Am., Paris, France.
  • K. Persson Waye, E. Ryherd, B. Lindahl, and I. Bergbom (2008) “Relating the hospital sound environment to occupant psychological and physiological response,” 155th meeting of the Acoust. Soc. Am., Paris, France.
  • S. Ryherd, K. Persson Waye, M. Kleiner, and E. Ryherd (2008) “Quantifying the noise environment: Effects of the wearer’s voice on body-mounted noise dosimeter measurements,” 155th meeting of the Acoust. Soc. Am., Paris, France.