WorldCat Identities

Dawson, W. R.

Overview
Works: 25 works in 34 publications in 1 language and 123 library holdings
Genres: Catalogs  Bibliography  History  Manuscripts  Juvenile works  Fiction 
Roles: Author, Contributor
Classifications: Z6616.H8, 012
Publication Timeline
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Most widely held works by W. R Dawson
Propulsion system performance requirements for guided urban transit systems by W. R Dawson( Book )

6 editions published in 1977 in English and held by 23 WorldCat member libraries worldwide

A democratic way to Australia's Republic by W. R Dawson( Book )

1 edition published in 2004 in English and held by 21 WorldCat member libraries worldwide

A manual of midwifery for students and practitioners by Henry Jellett( Book )

2 editions published in 1910 in English and held by 12 WorldCat member libraries worldwide

Hebamme / Lehrbuch
Doesn't everybody have a pet dinosaur? by W. R Dawson( Book )

2 editions published in 2004 in English and held by 2 WorldCat member libraries worldwide

Manual of bacteriology for practitioners and students : with special reference to practical methods by Samuel Leopold Schenk( Book )

1 edition published in 1893 in English and held by 2 WorldCat member libraries worldwide

Metabolism and thermoregulation in hatchling western gulls by W. R DAWSON( )

1 edition published in 1980 in English and held by 2 WorldCat member libraries worldwide

Case of general paralysis of the insane in a child by John Thomson( Book )

2 editions published in 1895 in English and held by 2 WorldCat member libraries worldwide

A re-examination of the relation between standard metabolic rate and body weight in birds by R. C LASIEWSKI( )

1 edition published in 1967 in English and held by 2 WorldCat member libraries worldwide

An approach to urban transit service standards in a regional context for small and medium sized communities by W. R Dawson( Book )

1 edition published in 1983 in English and held by 1 WorldCat member library worldwide

Radiative and radiationless processes in aromatic molecules: pyrene( Book )

1 edition published in 1968 in English and held by 1 WorldCat member library worldwide

The fluorescence yield, triplet yield, and fluorescence lifetime for pyrene-h10 and pyrene-d10 have been measured as a function of temperature. The phosphorescence yield, and phosphorescence lifetime, have also been determined. However, in pyrene-d10 the fluorescence yield increases with increasing temperature, indicating that the rate constant for intersystem crossing has a temperature-dependent part. The variation of fluorescence lifetime and triplet yield with temperature for a pyrene-h10 is attributable in toto to a temperature-sensitive internal conversion; in pyrene-d10 both internal conversion and inter-system crossing are temperature-dependent and contribute to the observed variations. (Author)
Photochromic eye-protective device based on triplet absorption( Book )

1 edition published in 1966 in English and held by 1 WorldCat member library worldwide

A prototype 6 x 8-inch photochromic windshield segment was developed and delivered to the Air Force. The device is designed to protect pilots against flash blindness caused by exposure to nuclear explosions. The reversible photochromic darkening is based upon absorption of visible light by metastable triplet states of aromatic molecules. The active compounds are incorporated into solid sheets of transparent plastic. Three sheets of plastic are arranged in an N-type configuration and the triplet states are produced by UV excitation from two flash lamps. Black glass filters prevent visible light from the flash lamps from dazzling the observer. With a 1900 joule input to the flash lamps, the triplet-state windshield segment attains within one millisecond an optical density, weighted for eye-response, that varies from 1.4 along a line midway between the flash lamps to 2.7 close to each flash lamp. The open-state transmittance is 65% and the device re-opens to one-half this transmittance in approximately 2 seconds. (Author)
Research on triplet states and photochromism( Book )

1 edition published in 1965 in English and held by 1 WorldCat member library worldwide

A normally transparent screen is needed that can be darkened quickly enough to protect the eyes of combat pilots who may be exposed to flashes from nuclear explosions. Strong absorption of visible light from the lowest triplet level of selected aromatic compounds is a promising basis for development of the required screen for prevention of flashblindness. This triplet absorption, which may be induced by absorption of ultraviolet light from microsecond flash lamps, decays in a few seconds so that transparency is spontaneously restored. A method of measuring extinction coefficients of triplet absorption and quantum yields of triplet formation has been developed. Combinations of aromatic compounds giving strong triplet absorption of visible light over the visible spectrum with minimized excitation energy are selected on the basis of these results. Two promising compounds have been synthesized. New plastics having greater solubility for large aromatic molecules than polymethylmethacrylate have been found. A method of making large sheets of polymethymethacrylate with exceptionally high transparency to ultraviolet is described. Deleterious effects of exposure of plastics, with and without aromatic solutes, to oxygen and sunlight have been studied. It was shown that diffusion of oxygen into the plastic sheets may be greatly reduced by a polyvinyl-alcohol coating. The application of these experimental results to the design of a protection device against flashblindness is discussed. (Author)
Shell structures : world conference, October 1-4, 1962, San Francisco, California : proceedings( Book )

1 edition published in 1964 in English and held by 1 WorldCat member library worldwide

Advances in comparative and environmental physiology( Book )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

Triplet materials research and eye-protective system( Book )

1 edition published in 1968 in English and held by 1 WorldCat member library worldwide

The second prototype model of a 6 x 8-inch photochromic, windshield segment has been developed, tested and delivered to the Air Force. The device is designed to protect Air Force Pilots against flash blindness resulting from viewing nuclear explosions. The reversible photochromic darkening is based upon the absorption of metastable triplet states of aromatic molecules. These compounds are incorporated into a transparent plate of epoxy plastic. Two plates are attached on the outside of a 6 x 8 x 1 1/2-inch quartz block and the triplet states are excited by uv light from two flash lamps. Black-glass filters absorb the visible light from the flash lamps which would otherwise dazzle the pilot. With a 3000J excitation flash the windshield segment darkens from an open-state absorbance of 0.08 to absorbances of 0.89, 1.68, 2.18 and 2.53, respectively, at times of 50, 100, 150 and 500 microseconds after the start of the flash. The open-state transmission, optical quality and rapidity of buildup of absorbance of the present device are greatly improved compared to the performance of the windshield segment developed on the preceding contract. The windshield segment reopens to half the closed-state absorbance in 1.6 seconds. (Author)
Use of the MADITUC model for service planning at the TTC by W. R Dawson( )

1 edition published in 1989 in English and held by 1 WorldCat member library worldwide

An approach to urban transit service standards in a regional context for small and medium sized communities by W. R Dawson( )

1 edition published in 1984 in English and held by 1 WorldCat member library worldwide

Best mentod of dealing with the pathological work of the Irish asylums by W. R Dawson( Book )

1 edition published in 1900 in English and held by 1 WorldCat member library worldwide

Elements of bacteriology for practitioners and students, with especial reference to practical methods by Samuel Leopold Schenk( )

1 edition published in 1893 in English and held by 0 WorldCat member libraries worldwide

 
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Languages
English (29)