Results 211 to 220 of about 61,034 (237)

Daily fluctuations in the detectability of dim lights by humans

Physiology & Behavior, 1986
Several aspects of retinal physiology are known to vary on daily or circadian cycles, suggesting that certain aspects of visual function might also vary. We measured absolute threshold--the dimmest visual stimulus that can be reliably detected--in seven human observers at mid-day (1200-1400) and mid-night (0000-0200), by means of standard ...
C J, Bassi, M K, Powers
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Squeezing the quantum fluctuations of light

Contemporary Physics, 1988
Abstract This paper is intended to be an introduction to the field of non-classical light. Starting from a pictorial discussion of the properties of the radiation field, examples for the generation and possible applications of squeezed states of the light field are given.
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On the classical fluctuation of a beam of light

Il Nuovo Cimento, 1957
The fluctuation of intensity of a light beam emitted by a macroscopically constant source is evaluated. The generating function of the distribution is determined exactly; it is found that the moments of the distribution are in good approximation those of a Gaussian distribution. Eecent experiments on photon coincidences are discussed.
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V Fluctuations of Light Beams

1963
Publisher Summary This chapter describes the fluctuations of light beams. Like other fluctuation problems concerned with departures from equilibrium, radiation fluctuations in an enclosure can be treated by the methods of statistical mechanics. The fluctuations of the counts recorded by a photo-detector illuminated by Gaussian light depart from ...
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Photosynthesis of Marine Algae in Fluctuating Light. I. Adjustment of Rate in Constant and Fluctuating Light Regimes

Functional Ecology, 1987
The adjustment of photosynthetic rates to fluctuating and constant light was investigated in Hormosira banksii (Turn.) Dene., Carpophyllum maschalocarpum, (Turn.) Grev. and Ecklonia radiata (C. Ag.) J. Ag. by monitoring either CO2 exchange in emergent material with an infrared gas analyser (IRGA) or 02 exchange in submersed material with an 02 ...
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Fluctuation and Light Scattering

2022
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Improved stomatal opening enhances photosynthetic rate and biomass production in fluctuating light

Journal of Experimental Botany, 2020
Haruki Kimura, Mimi Hashimoto-Sugimoto, Koh Iba   +2 more
exaly  

The water-water cycle facilitates photosynthetic regulation under fluctuating light in the epiphytic orchid Dendrobium officinale

Environmental and Experimental Botany, 2020
Ying-Jie Yang, Shun-Ling Tan, Shi-Bao Zhang   +2 more
exaly  

Different Strategies for Photosynthetic Regulation under Fluctuating Light in Two Sympatric Paphiopedilum Species

Cells, 2021
Wei Huang, Ji-Hua Wang, Shi-Bao Zhang
exaly  

Photoinhibition of photosystem I under fluctuating light is linked to the insufficient ΔpH upon a sudden transition from low to high light

Environmental and Experimental Botany, 2019
Wei Huang, Ying-Jie Yang, Shi-Bao Zhang   +2 more
exaly