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Analysis of spark-ignition engine knock as seen in photographs taken at 200,000 frames per second

Description: Report discussing a motion picture of the development of knock in a spark-ignition engine, which consists of 20 photographs taken at intervals of 5 microseconds, or at a rate of 200,000 photographs per second, with an equivalent wide-open exposure time of 6.4 microseconds for each photograph.
Date: 1946~
Creator: Miller, Cearcy D.; Olsen, H. Lowell; Logan, Walter O., Jr. & Osterstrom, Gordon E.
Partner: UNT Libraries Government Documents Department

Aerial photography : obtaining a true perspective

Description: Report discussing a demonstration was given within the last few days at the British Museum by Mr. J. W. Gordon, author of "Generalized Linear Perspective" (Constable and Co.), a work describing a newly-worked-out system by which photographs can be made available for the purpose of exactly recording the dimensions of the objects photographed even when the objects themselves are presented foreshortened in the photograph.
Date: April 1923
Partner: UNT Libraries Government Documents Department

Lace

Description: No Description Available.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1845
Creator: Talbot, William Henry Fox
Partner: UNT College of Visual Arts + Design

Thistle

Description: No Description Available.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1898/1907
Creator: Lincoln, Edwin Hale
Partner: UNT College of Visual Arts + Design

Claude Monet

Description: No Description Available.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1926
Creator: Muray, Nickolas
Partner: UNT College of Visual Arts + Design

Photogram

Description: No Description Available.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1923~
Creator: Moholy-Nagy, László
Partner: UNT College of Visual Arts + Design

Untitled (Sprinter)

Description: No Description Available.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1890~/1900~
Creator: Marey, Jules Etienne & Demeny, Georges
Partner: UNT College of Visual Arts + Design

Generation Mess

Description: Each of the photographs in this group includes the black and white portrait of a young person layered with walls and words. These photographs were included in the exhibition Parallax Presents: Self-Conceptions, University of North Texas Fine Art Photography Club in September, 2012, in the Lightwell Gallery in the Art Building on the University of North Texas campus.
Date: 2012
Creator: Claes, Ashley
Partner: UNT College of Visual Arts + Design

In Pursuit of Image: How We Think About Photographs We Seek

Description: The user perspective of image search remains poorly understood. the purpose of this study is to identify and investigate the key issues relevant to a user’s interaction with images and the user’s approach to image search. a deeper understanding of these issues will serve to inform the design of image retrieval systems and in turn better serve the user. Previous research explores areas of information seeking behavior, representation in information science, query formulation, and image retrieval. the theoretical framework for this study includes an articulation of image search scenarios as adapted from Yoon and O’Connor’s taxonomy of image query types, Copeland’s Engineering Design Approach for rigorous qualitative research, and Anderson’s Functional Ontology Construction Model for building robust models of human behavior. a series of semi-structured interviews were conducted with expert-level image users. Interviewees discussed their motivations for image search, types of image searches they pursue, and varied approaches to image search, as well as how they decide that an information need has been met and which factors influence their experience of search. a content analysis revealed themes repeated across responses, including a collection of 23 emergent concepts and 6 emergent categories. a functional analysis revealed further insight into these themes. Results from both analyses may be used as a framework for future exploration of this topic. Implications are discussed and future research directions are indicated. Among possibilities for future research are investigations into collaborative search and ubiquitous image search.
Date: May 2012
Creator: Oyarce, Sara
Partner: UNT Libraries

Photography Changes Our Environmental Awareness

Description: This article is part of a series by the Smithsonian Photography Initiative called Click! Photography Changes Everything. This article discusses how photography and increased visibility can bridge the gap between the natural world and human interaction.
Date: 2011
Creator: O'Connor, Brian Clark & Klaver, Irene
Partner: UNT College of Information