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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

INFRARED PRESENSITIZATION PHOTOGRAPHY.

GEARY, JOSEPH MARTIN. January 1984 (has links)
Infrared presensitization photography (IRPP) is a double exposure technique that allows the recording of IR information on standard silver halide films not ordinarily sensitive in this long wavelength regime. This dissertation prescribes conditions for the practical implementation of the IRPP process in data collection. It then moves on to an investigation of mechanism, i.e., "why does IRPP work?" The study is divided into experimental and theoretical portions, with much heavier emphasis on the former. Experiments delve into the behavior of the characteristic and spectral sensitivity curves of film within the context of the IRPP phenomenon. The temperature rise experienced by the film during this process is determined. The influence of sensitizing dyes and ionic population increases in the grain crystals is also explored. Theoretical efforts concentrate on an extension of the Shaw photographic model to explain the IRPP effect in terms of a down-shifting in the overall quantum sensitivity requirements of the grain population.
2

Cloud photography in the far-infrared.

Woronko, Stanley Francis. January 1972 (has links)
No description available.
3

People in public places /

Durrill, J. Edward. January 1991 (has links)
Thesis (M.F.A.)--Rochester Institute of Technology, 1991. / Typescript. Includes bibliographical references (leaf 29).
4

The utility of color infrared photography and synthetic aperture radar for vegetation type discrimination in the tropics

Wessman, Carol Adele. January 1984 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1984. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 153-161).
5

Cloud photography in the far-infrared.

Woronko, Stanley Francis. January 1972 (has links)
No description available.
6

STUDIES OF PLANETARY SPECTRA IN THE PHOTOGRAPHIC INFRARED

Owen, Tobias C. January 1965 (has links)
No description available.
7

Investigation of the radiometric integrity of the therogram after its raster scan lines are removed through spatial filtration /

Allamena, Joan A. January 1983 (has links)
Thesis (B.S.)--Rochester Institute of Technology, 1983. / Typescript. Includes bibliographical references (leaf 24).
8

Determination of the spectral dye density distributions of color films

Friederichs, Gerald Alfons, January 1976 (has links)
Thesis--Wisconsin. / Includes bibliographical references (leaves 166-168).
9

3D thermal mapping of cone calorimeter specimen and development of a heat flux mapping procedure utilizing an infrared camera

Choi, Keum-Ran . January 2005 (has links)
Dissertation (Ph.D.)-- Worcester Polytechnic Institute. / Keywords: temperature measurement; heat flux maps; Cone Calorimeter; three-dimensional heat conduction; fire growth models; retainer frame; ceramic fiberboard; edge effect; one-dimensional heat conduction; heat flux mapping procedure; infrared camera; specimen preparation; edge frame; one-dimensional heat conduction model; thermal properties. Includes bibliographical references (p.202-204).
10

Propagation and performance analysis for a 915 MHz wireless IR image transfer system / Propagation and performance analysis for a 915 MHz wireless infrared image transfer system

Felekoglu, Oktay. 06 1900 (has links)
A 915 MHz wireless IR image transfer system, comprised of an IR-160 Thermal Camera and MDS iNet 900 transceivers, was assessed for image transfer capabilities in different environments. Image transfer through natural and artificial obstructions, the capability of transferring images under urban environments, and an exploration of interference issues associated with RF communication links were investigated in detail. Concrete, wood, various construction materials, and building walls were examined to assess indoor propagation capabilities. Data transmission through random trees, buildings, foliage under various atmospheric conditions is also evaluated for outdoor system capabilities. A maximum free space range for acceptable IR image transferring is determined as 23 miles for line of sight (LOS). Non line of sight (NLOS) urban environment measurements revealed that urban path loss (15-60 dBm) is highly dependent on antenna orientation and obstruction geometry rather than the T-R separation distance.

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