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Light emitting diodes (LEDs)

Attractiveness of light‑emitting diodes (LEDs) of different wavelengths to the South American rice water weevil

Attractiveness of light‑emitting diodes (LEDs) of different wavelengths to the South American rice water weevil

... of light traps for moni‑ toring or even controlling irrigated rice pests is the lack of electric distribution network permeating the cropping ...autonomous light trap (Sonne), which uses photovoltaic solar ...

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Photoinactivation of Escherichia coli using xanthene dyes and light-emitting diodes

Photoinactivation of Escherichia coli using xanthene dyes and light-emitting diodes

... of light in the spectral range of 500 to 550 nm, a range corresponding to that emitted by light-emitting diodes (LEDs; blue and green ...alternative light source for PDT because of ...

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Evaluation of light-emitting diodes as attractant for sandflies (Diptera: Psychodidae: Phlebotominae) in northeastern Brazil

Evaluation of light-emitting diodes as attractant for sandflies (Diptera: Psychodidae: Phlebotominae) in northeastern Brazil

... Hoover Pugedo light traps were modified for use with green and blue-light-emitting diodes to trap phlebotomine sandflies in northeastern Brazil. A total of 2,267 specimens belonging to eight ...

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Highly efficient organic light emitting diodes based on thermally activated dedlayed fluorescent materials

Highly efficient organic light emitting diodes based on thermally activated dedlayed fluorescent materials

... organic light- emitting ...the emitting layer (EML) and the electron transport layer (ETL) in different solvents such as chlorobenzene, dichlorobenzene, and ...

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Photogenerated carrier profile determination in polymeric light-emitting diodes by steady-state and transient photocurrent measurements

Photogenerated carrier profile determination in polymeric light-emitting diodes by steady-state and transient photocurrent measurements

... Conjugated polymers have attracted much attention in the last 15 years due to their semiconducting properties and to their potential application in a wide variety of electronic and opto- electronic devices like ...

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The use of light-emitting diodes to stimulate mitochondrial function and liver regeneration of partially hepatectomized rats

The use of light-emitting diodes to stimulate mitochondrial function and liver regeneration of partially hepatectomized rats

... of light coherence in the stimulatory ...used light-emitting diodes (LED) to promote the stimulation of liver regeneration after partial hepatectomy in ...LED light irradiation (630 nm) ...

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Organic Light Emitting Diodes: Photophysics of Thermally Activated Delayed Fluorescence Emitters and Device Characterization

Organic Light Emitting Diodes: Photophysics of Thermally Activated Delayed Fluorescence Emitters and Device Characterization

... The differences between singlet and triplet states are of paramount importance in organic light emitting diodes (OLEDs). In the way these devices work, charges are injected into a stack of organic ...

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KCa4(BO3)(3):Ln(3+) (Ln = Dy, Eu, Tb) phosphors for near UV excited white-light-emitting diodes

KCa4(BO3)(3):Ln(3+) (Ln = Dy, Eu, Tb) phosphors for near UV excited white-light-emitting diodes

... ting diodes (W–LEDs) being known for general illumination sources due to their unmatchable benefits, for example: high brightness, longer lifetime, small volume, and low power ...

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Effects of light quality supplied by light emitting diodes (LEDs) on microalgal production

Effects of light quality supplied by light emitting diodes (LEDs) on microalgal production

... The PPFD of LEDs can be controlled by PWM or AM, also referred to as continuous current reduction (CCR) [77,78]. PWM entails the use of alternating states in which the current is completely turned either on or off. At a ...

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The use of light-emitting diodes (LED) in commercial layer production

The use of light-emitting diodes (LED) in commercial layer production

... Artificial light allows anticipating or delaying the beginning of lay, improving egg production, and optimizing feed ...following light sources were used: blue LED, yellow LED, green LED, red LED, white ...

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Efficient photochemical generation of peroxycarboxylic nitric anhydrides with ultraviolet light emitting diodes

Efficient photochemical generation of peroxycarboxylic nitric anhydrides with ultraviolet light emitting diodes

... The only disadvantage of the UV-LED setup is its price to construct; each of the UV- LEDs currently retails for about the same price as a phosphor-coated Hg lamp. There is also the added cost to construct the diode array ...

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Microleakage evaluation of resin composite restorations polymerized with different blue light-emitting diode units (LED)

Microleakage evaluation of resin composite restorations polymerized with different blue light-emitting diode units (LED)

... with light- emitting diodes (LEDs) with different numbers of blue ...LED light curing unit with 19 LEDs (3M ESPE); G2- Surefil + LED light curing unit with 19 LEDs; G3- Z250 + LED ...

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Degree of conversion of different composite resins photo-activated with light-emitting diode and argon ion laser

Degree of conversion of different composite resins photo-activated with light-emitting diode and argon ion laser

... and light-emitting diodes (LED) are currently commercially available and may also influence the final physical properties of composite resins [18, ...QTH light and a better match of ...

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Photo and electroluminescence behavior of Tb(ACAC)3phen complex used as emissive layer on organic light emitting diodes

Photo and electroluminescence behavior of Tb(ACAC)3phen complex used as emissive layer on organic light emitting diodes

... organic light emitters based on polymeric materials showed very promising results [2], the absence of colour purity and limited internal efficiency of those materials, open a new OLEDs ...

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Eficiência da tecnologia LED (Light-Emitting Diode) na captura de mosquito do gênero Anopheles (Diptera: culicidae) e vetores da malária

Eficiência da tecnologia LED (Light-Emitting Diode) na captura de mosquito do gênero Anopheles (Diptera: culicidae) e vetores da malária

... (Light-Emitting Diodes) ou diodos emissores de luz, como fonte luminosa em substituição à lâmpada incandescente convencional, traz muitas vantagens, uma vez que, é resistente, durável e seu custo é ...

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Uso das terapias laser e LED (Light-Emitting Diode) de baixa intensidade para aumentar o desempenho muscular: do in vitro e experimental ao uso clínico

Uso das terapias laser e LED (Light-Emitting Diode) de baixa intensidade para aumentar o desempenho muscular: do in vitro e experimental ao uso clínico

... Recent studies have used low-level laser therapy (LLLT) and LEDs (light-emitting diodes - LEDT) to increase muscle performance in experimental models and randomized clinical trials. However, the ...

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Electrical and optical numerical modeling of DP-PPV based polymer light emitting diode

Electrical and optical numerical modeling of DP-PPV based polymer light emitting diode

... layer light emitting diodes based on polymers are still of great interest and several methods were used to understand their devices physics [23]- ...

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Monochromatic light-emitting diode (LED) source in layers hens during the second production cycle Rodrigo Borille

Monochromatic light-emitting diode (LED) source in layers hens during the second production cycle Rodrigo Borille

... of light, involving the quantity, the color and the frequency spectrum (Gongruttananun & Guntapa, ...the light spectrum (545-575 nm), and it is responsible for their growth and behavior (Mobarkey et ...

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Electroluminescence and electric current response spectroscopy applied to the characterization of polymer light-emitting electrochemical cells

Electroluminescence and electric current response spectroscopy applied to the characterization of polymer light-emitting electrochemical cells

... organic/polymeric light-emitting diodes (OLEDs/PLEDs) due to advantageous characteristics like low operation voltage, simple device structure, and bipolar electroluminescence behavior almost ...

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Resveratrol Prevents High Fluence Red Light-Emitting Diode Reactive Oxygen Species-Mediated Photoinhibition of Human Skin Fibroblast Migration.

Resveratrol Prevents High Fluence Red Light-Emitting Diode Reactive Oxygen Species-Mediated Photoinhibition of Human Skin Fibroblast Migration.

... To our knowledge, this is the first report that resveratrol is capable of preventing the effects of high-fluence visible red light on human skin fibroblast ROS generation and migration speed. Previous research ...

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