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ReferencesNavigation arrowAuthorsNavigation arrowDaniel N. Mountjoy
Jun 18

“ Computer programs emerge as the outcome of complex human processes of cognition, communication and negotiation, which serve to establish the meaningful embedding of the computer system in its intended use context. ”

-- Floyd, 1992, p. 24

 
 

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Daniel N. Mountjoy

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Publications by Daniel N. Mountjoy (bibliography)

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1995
 
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Mountjoy, Daniel N., Burnsides, Dennis B., Payne, Ernest F., Hoffmeister, Jeffrey W. and Diesel, Donald A. (1995): Custom Oxygen Mask Development Using Rapid Prototyping Technologies. In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. p. 961.

“Customization of oxygen masks is currently an artistic, labor intensive process that sometimes takes several months from start to finish. The Advanced Aircrew Oxygen Mask (AAOM) project is concerned with the use of rapid prototyping technologies in the development of custom oxygen masks modeled after the MBU-20/P, or COMBAT EDGE, mask. AAOM is managed by Armstrong Laboratory's Crew Technology Division at Brooks Air Force Base, Texas. It is theorized that by customizing the shape of the mask seal to match the face shape at the face-mask interface, leakage, slippage and comfort will improve at high oxygen pressure levels (with a peak of 60 mm Hg) associated with this positive pressure breathing system. State-of-the-art technologies, facial surface digitizing and stereolithography, have been utilized to customize masks for seven subjects. The Computerized Anthropometric Research and Design (CARD) Laboratory, part of the Armstrong Laboratory's Human Engineering Division at Wright-Patterson Air Force Base, Ohio, utilized a 3-D digitizer to collect high-resolution facial surface data on each subject. Subjects were also digitized wearing an off-the-shelf MBU-20/P mask. A CAD model of a MBU-20/P mask front was aligned with the mask the subject wore, and data points on the face lying behind the mask were extracted to create a mask seal that perfectly matched each subjects' face. This seal was then merged with the CAD model of the mask front and sent electronically to be built through stereolithography. The physical molds were then dipped in RTV silicone rubber to create the customized face piece. Mask fit (leakage, slippage and comfort) will be tested in the next phase of the project.”

© All rights reserved Mountjoy et al. and/or Human Factors Society

1991
 
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Koubek, Richard J. and Mountjoy, Daniel N. (1991): The Impact of Knowledge Representation on Cognitive-Oriented Task Performance. In International Journal of Human-Computer Interaction, 3 (1) pp. 31-47.

“This research examines the impact of training style and operator individual differences on the task representation developed, automatized task performance, and controlled task performance. Results indicate that performance on relatively straightforward repetitive tasks usually associated with automatization is influenced by training style and the mental task representation held by operators. Also, domain representation is a significant determinant of performance on complex cognitive-oriented tasks requiring controlled processes. Therefore, the task representation is identified as a high-level performance determinant for both simple and complex task performance. No effect for training style or individual differences was found. It is concluded that training programs for systems requiring human-computer interaction must account for this factor in order to facilitate the learning process and enhance task performance.”

© All rights reserved Koubek and Mountjoy and/or Lawrence Erlbaum Associates

 
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Changes to this page (author)

27 Jun 2007: Modified
28 Apr 2003: Added

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URL: http://www.interaction-design.org/references/authors/daniel_n__mountjoy.html
Jun 18

“ Computer programs emerge as the outcome of complex human processes of cognition, communication and negotiation, which serve to establish the meaningful embedding of the computer system in its intended use context. ”

-- Floyd, 1992, p. 24

 
 

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

 
 

Latest books

The Social Design of Technical Systems: Building technologies for communities
by Brian Whitworth and Adnan Ahmad

 
Start reading

The Encyclopedia of Human-Computer Interaction, 2nd Ed.
by Mads Soegaard and Rikke Friis Dam

 
Start reading
 
 

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