Results 261 to 270 of about 1,835,811 (314)
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Decomposition of Water by Light
Nature, 1960WE wish to direct attention to two simple cases in which the decomposition of water (or some other oxidation-reduction reaction) can be effected by light of practically any wave-length, and which may play some part in Nature1,2.
H. KALLMANN, M. POPE
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Nature, 2001
Sunlight can be harnessed by semiconductors to generate a fuel, hydrogen gas, from water. This approach will be impracticable until certain materials-related constraints are overcome: photochemists are on the case.
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Sunlight can be harnessed by semiconductors to generate a fuel, hydrogen gas, from water. This approach will be impracticable until certain materials-related constraints are overcome: photochemists are on the case.
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The Scattering of Light by Water
Journal of the Optical Society of America, 1937By means of a quartz spectrograph and recording densitometer measurements were made throughout the spectral region from 5790 to 2536A of the relative intensities of light scattered by pure water. The scattering coefficient was found to increase with decreasing wave-length in fair agreement with the λ−4f(μ) expression of the density fluctuation theory.
L. H. Dawson, E. O. Hulburt
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LIGHT WATER REACTOR HEALTH PHYSICS
Health Physics, 2004In this article an overview of the historical development of light water reactor health physics programs is presented. Operational health physics programs have developed and matured as experience in operating and maintaining light water reactors has been gained.
Robert J, Prince, Scott E, Bradley
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Light induced degradation of testosterone in waters
Science of The Total Environment, 2010The degradation of testosterone under simulated irradiations was studied in phosphate buffers and in natural waters at various excitation wavelengths. The quantum yield of photolysis was significantly lower at 313 nm (2.4 x 10(-3)) than at 254 nm (0.225).
Vulliet, Emmanuelle +5 more
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Water Splitting by Light with Osmocene as Photocatalyst
Angewandte Chemie International Edition, 2009AbstractLast but not least: A simple molecular redox system is used to split water into hydrogen and oxygen photochemically. Two separate photolyses are combined to a cyclic process (see scheme).
Horst, Kunkely, Arnd, Vogler
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British Journal of Applied Physics, 1956
Nuclear resonance absorption is induced in protons contained in mixtures of light and heavy water. The magnitude of the power absorption is used as a measure of the concentration of light water present and samples of known concentration are used to standardize the absorption. Two techniques for inducing the absorption are described, one appropriate for
A M J Mitchell, G Phillips
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Nuclear resonance absorption is induced in protons contained in mixtures of light and heavy water. The magnitude of the power absorption is used as a measure of the concentration of light water present and samples of known concentration are used to standardize the absorption. Two techniques for inducing the absorption are described, one appropriate for
A M J Mitchell, G Phillips
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Light Reinforcement as a Function of Water Deprivation
Psychological Reports, 1958There are several studies (3, 4, 5 ) which attest to the efficacy of light as a reinforcing stimulus with non-deprived animals. However, Kling, et al. ( 5 ) noted that light presentation did not appear to strengthen bar pressing when the subjects, albino rats, were water deprived.
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