Results 21 to 30 of about 583,973 (248)

Photosynthetic Efficiency and Anatomical Structure of Pepper Leaf (Capsicum annuum L.) Transplants Grown under High-Pressure Sodium (HPS) and Light-Emitting Diode (LED) Supplementary Lighting Systems

open access: yesPlants, 2021
The aim of this study was to evaluate the effects of various supplemental greenhouse lighting systems, i.e., high-pressure sodium lamps and mixtures of red and blue light-emitting diodes, on the photochemical efficiency, anatomical leaf structure, and ...
Anna Sobczak   +6 more
doaj   +1 more source

Characterization of Metabolic Changes under Low Mineral Supply (N, K, or Mg) and Supplemental LED Lighting (Red, Blue, or Red–Blue Combination) in Perilla frutescens Using a Metabolomics Approach

open access: yesMolecules, 2020
In order to achieve premium quality with crop production, techniques involving the adjustment of nutrient supply and/or supplemental lighting with specific light quality have been applied.
Dong Ho Suh   +6 more
doaj   +1 more source

FUZZY MODELING FOR THE ANALYSIS OF DIFFERENT LIGHT INTENSITIES IN THE PRODUCTION OF BELL PEPPER SEEDLINGS [PDF]

open access: yesEngenharia Agrícola, 2022
Bell peppers are one of the most cultivated and consumed vegetables in Brazil, and their high production yield largely depends on the use of high-quality seedlings.
Déborah C. T. C. de Brito   +3 more
doaj   +1 more source

Effect of Pre-Harvest Supplemental UV-A/Blue and Red/Blue LED Lighting on Lettuce Growth and Nutritional Quality

open access: yesHorticulturae, 2021
Blue light and ultra-violet (UV) light have been shown to influence plant growth, morphology, and quality. In this study, we investigated the effects of pre-harvest supplemental lighting using UV-A and blue (UV-A/Blue) light and red and blue (RB) light ...
Triston Hooks   +3 more
doaj   +1 more source

Energy efficient facade lighting : highlighting facade structure [PDF]

open access: yes, 2014
The project set out to proof that a conventional optical fibre lighting system for highlighting the structure of a façade can be operated more energy-efficiently through the substitution of the projector using a metal halide reflector lamp by a laser ...
Hordijk, Truus,   +27 more
core   +2 more sources

Optimizing lettuce yields and quality by incorporating movable downward lighting with a supplemental adjustable sideward lighting system in a plant factory [PDF]

open access: yesPeerJ, 2023
Background Lettuce is a vegetable that is increasingly consumed globally, given its nutritional quality. Plant factories with artificial lighting can produce high-yield and high-quality plants.
Mulowayi Mutombo Arcel   +4 more
doaj   +2 more sources

Effects of supplemental lighting during the period of rapid fruit development on the growth, yield, and energy use efficiency in strawberry plant production

open access: yes, 2020
Supplemental lighting techniques in greenhouses can increase plant growth and yield but required much energy. We proposed an energy-saving supplemental lighting which was applied during rapid fruit development when transport of photosynthetic products ...
Kota, Hidaka (NARO)   +14 more
core   +1 more source

Dimming strategies for open office lighting : User experience and acceptance [PDF]

open access: yes, 2018
Sensor-triggered control strategies can limit the energy consumption of lighting by considering the presence of users in the office and dimming lighting down when it is not needed. In multi-user offices, the application of occupancy-based dimming at room
Creemers, P.,   +26 more
core   +2 more sources

Energy-efficient street lighting through embedded adaptive intelligence [PDF]

open access: yes, 2013
Streetlights place a heavy demand on electricity usage, providing significant financial and environmental burdens. Consequently, initiatives to reduce energy consumption have been proposed, usually by turning off or dimming the streetlight. In this paper,
Geoff V. Merrett   +5 more
core   +1 more source

Simulation of virtual natural lighting solutions with a simplified view [PDF]

open access: yes, 2014
Daylight is limited in time and space. In situations where daylight is insufficiently available, virtual natural lighting solutions (VNLS), which are systems that artificially provide lighting and view comparable to those of real windows and skylights ...
Mangkuto, R. A.,   +11 more
core   +2 more sources

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