Results 11 to 20 of about 1,179,193 (165)

Effects of Spectral Quality and Light Quantity of LEDs on In Vitro Shoot Development and Proliferation of Ananas comosus L. Merr

open access: yesAgronomy, 2023
Light intensity and spectrum have a direct effect on the growth and development of plants and on the qualitative characteristics of their productions.
Valeria Cavallaro   +4 more
doaj   +1 more source

Pengaruh Variasi Sumber Cahaya Led Terhadap Pertumbuhan Dan Hasil Tanaman Selada (Lactuca sativa Var. Crispa L) Dengan Sistem Budidaya Hidroponik Rakit Apung

open access: yesAgric, 2020
In conventional curly lettuce cultivation there are several obstacles such as altitude, temperature, humidity, nutrient availability and light intensity that caused lettuce can not grow optimally.
Antonius Novinanto   +1 more
doaj   +1 more source

The singularities of light: intensity, phase, polarisation

open access: yesLight: Science & Applications, 2023
In modern optics, light can be described at different levels: as rays, as scalar waves, as vector fields, and as quantum fields. In the first three levels, there are singularities—characteristic features, useful in interpreting phenomena at that level ...
Michael V. Berry
doaj   +1 more source

Intensity-Dependent Absorption of Light [PDF]

open access: yesProceedings of the National Academy of Sciences, 1964
Interesting observations on intensity-dependent absorption of light have been reported by Bret and Gires,1 who have not given a theoretical interpretation of their results. This note provides a simple discussion of the probable mechanism of the effects observed as being due to optical pumping by the absorbed light.
openaire   +2 more sources

Correlated color temperature and light intensity: Complementary features in non-visual light field.

open access: yesPLoS ONE, 2021
An appropriate exposure to the light-dark cycle, with high irradiances during the day and darkness during the night is essential to keep our physiology on time.
Raquel Arguelles-Prieto   +3 more
doaj   +1 more source

RADIATION FOR GARLIC PLANLETS ON ACLIMATIZATION PHASE

open access: yesCaraka Tani: Journal of Sustainable Agriculture, 2015
Garlic is one of the important horticultural crops in Indonesia so that the needs increas from year to year. In Indonesia plant material (seed) for cultivating garlic always uses comsumption bulb.
Dara Cipta Andini   +2 more
doaj   +1 more source

Impact of light intensity or choice of intensity on broiler performance and behavior

open access: yesJournal of Applied Poultry Research, 2022
SUMMARY: The optimal light intensities for broiler production and well-being have been investigated for some time. The use of a minimum 20 lux (lx) is mandated within the European Union (European Commission, 2000; European Union 2007).
D.J. Aldridge   +4 more
doaj   +1 more source

Investigation of Different Light Sources and Cycles on the Growth and Lipid Production Mechanisms for Various Microalgae Species [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2023
Microalgae are used for various purposes, mainly as food supplements by people because of the protein, carbohydrate, fatty acids, vitamins, minerals, pigments, and many other compounds they contain. Efforts to utilize microalgae as a raw material for the
Togayhan Kutluk, Nurcan Kapucu
doaj   +1 more source

Light intensity regulates phototaxis, foraging and righting behaviors of the sea urchin Strongylocentrotus intermedius [PDF]

open access: yesPeerJ, 2019
Small sea urchins Strongylocentrotus intermedius (1–2 cm of test diameter) are exposed to different environments of light intensities after being reseeded to the sea bottom.
Jiangnan Sun   +7 more
doaj   +2 more sources

Skylight Light Intensity Data Logging System

open access: yesActive and Passive Electronic Components, 1997
The design of a skylight intensity data logging system is presented. The proposed system is able to accept 32 inputs in two 16 input blocks with capabilities for further expansion. A typical application would be to simultaneously monitor real time change
A. Udina, Lc Jain
doaj   +1 more source

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