Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Lee A. Pavelka"'
Publikováno v:
Color Research & Application. 20:93-107
The development of durable daylight fluorescent retroreflective sheetings has led us to investigate some of the factors that influence color measurement of these materials. the colorimetry of retroreflective materials is particularly sensitive to mea
Autor:
David M. Burns, Lee A. Pavelka
Publikováno v:
Color Research & Application. 20:108-116
Increasing visual complexity in the roadway environment is making the task of driving a greater challenge for the motorist. Recent advances make it possible to produce fluorescent retroreflective materials suitable for long-term outdoor signing appli
Publikováno v:
Fuel. 67:612-618
This paper summarizes efforts to increase the solubilities of coal fractions, with minimum loss of carbon, by oxidations with aqueous NaOCl, oxygen, and nitric acid, at or below 60 °C. The principal products were ‘black acids’, insoluble in wate
Publikováno v:
Fuel. 67:595-599
This paper describes the solubilities of a beneficiated Illinois No. 6 coal in several solvents and then compares the solubilities of eleven coals in pyridine and benzylamine. The results show that the best solvents for the beneficiated coal leave in
Publikováno v:
Toxicon. 15:135-139
Tetrodotoxin and tetrodotoxin-like compounds from the eggs of the Costa Rican frog, Atelopus chiriquiensis. Toxicon15, 135–139. 1977.—A mixture of the potent neurotoxins tetrodotoxin and chiriquitoxin was isolated from the eggs of gravid female A
Publikováno v:
Science. 207:193-195
A new N-methylpurine riboside (doridosine), probably N1-Methylisoguanosine, was isolated from the digestive glands of a nudibranch. Doridosine produces prolonged hypotension and bradycardia in anesthetized rats, decreases the rate and the amplitude o
Publikováno v:
HETEROCYCLES. 17:225
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