Open Access. Powered by Scholars. Published by Universities.®

Other Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

2013

Architectural Engineering -- Dissertations and Student Research

Articles 1 - 2 of 2

Full-Text Articles in Other Engineering

Effects Of Time Varying Background Noise Conditions On Human Perception And Performance, Andrew H. Hathaway Dec 2013

Effects Of Time Varying Background Noise Conditions On Human Perception And Performance, Andrew H. Hathaway

Architectural Engineering -- Dissertations and Student Research

This thesis was designed to study the effects of changing noise conditions on human perception and performance. In two phases, participants were exposed to a number of noise conditions and their performance on an arithmetic task involving short-term memory was monitored and their subjective perception of noise conditions was collected via questionnaires.

In the first phase, participants were tested while being subjected to RC-29(H) and RC-47(RV) conditions created by broadband noise fluctuating on different time intervals, resembling the changing noise conditions potentially found in modern HVAC systems. These intervals varied from two minutes to ten minutes. Results show ...


Investigation Of Sound Transmission Through An Open Window Into A Room, Caleb F. Sieck Aug 2013

Investigation Of Sound Transmission Through An Open Window Into A Room, Caleb F. Sieck

Architectural Engineering -- Dissertations and Student Research

In recent decades, noise levels in cities and the associated annoyance and health consequences have become regular topics of discussion. As a result, the assessment of environmental noise transmitting into buildings has received much attention. Current models of sound transmission through open windows have either neglected their thickness or the presence of a room behind on one side. The objectives of the present work were to (1) develop an accurate analytical model of sound transmission through an open window of finite thickness into a room, (2) verify the analytical model using a finite element model and experimental measurements, and (3 ...