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Effects on Light Efficiency in Discharge and Solid-State Lighting Operation, Supplied by No-Sinusoidal Voltage
(Ieee-inst Electrical Electronics Engineers Inc, 2016-05-01)
The widespread use of discharge lamps and solid-state lighting is justified by its high-energy efficiency. However, the massive use causes degradation of power quality provided. In this context, the objective was the ...
Effects of light quality on rutin production and growth of Physalis angulata (Linn.) seedlings cultured in vitro
(2019-02-01)
Physalis angulata Linn. is a plant with great importance in folk medicine for its various therapeutic properties and the production of active compounds. It is known as camapú in Brazil. The P. angulata seedlings were ...
Lighting pollution, the benefit/cost approach
(Znack Publishing House, 2002-05)
One of the urban lighting objectives is to extend people’s activities during night. In this case lighting is linked with functions as visibility, safety, security and visual
appearance of the surroundings. Considering ...
Light intensity regulates stoichiometry of benthic grazers through changes in the quality of stream periphyton
(University of Chicago Press, 2019-06)
In mountain streams, light is a key factor for primary production and primary producer nutrient stoichiometry, or the relative composition of carbon (C) compared to phosphorous (P) and nitrogen (N) in primary producers. ...
Manipulation of Light Environment to Produce High-quality Poinsettia Plants
(American Society for Horticultural Science, 2009-06)
The phytochromes, a family of photoreceptors that maximally absorb red (R) and far-red (FR) light, play an important role in defining the architecture of the plant and consequently its value in the market. In this work, ...
Effects on Light Efficiency in Discharge and Solid-State Lighting Operation, Supplied by Non-Sinusoidal Voltage
(2016-05-01)
The widespread use of discharge lamps and solid-state lighting is justified by its high-energy efficiency. However, the massive use causes degradation of power quality provided. In this context, the objective was the ...
Influence of light quality on germination and initial growth of canephori seedlings Peltophorum dubium (Sprenge) Taub.
(Wfl Publ, 2012-07-01)
Light is considered one of the major environmental factors controlling germination of different species, mainly native ones, based on the importance of the species Peltophorum dubium for re-vegetation of degraded areas, ...
Influence of light quality on germination and initial growth of canephori seedlings Peltophorum dubium (Sprenge) Taub
(2012-01-01)
Light is considered one of the major environmental factors controlling germination of different species, mainly native ones, based on the importance of the species Peltophorum dubium for re-vegetation of degraded areas, ...
Estudo de caso em eficiência energética de um sistema de iluminação
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2017-07-14)
This paper aims to present Brazilian electrical power sector and its main regulators, conceptualizing the lighting systems, presenting their components and main used technologies. This paper also highlights the importance ...