نتایج جستجو برای: red led
تعداد نتایج: 357390 فیلتر نتایج به سال:
The absorption of visible light in aquatic environments has led to the common assumption that aquatic organisms sense and adapt to penetrative blue/green light wavelengths but show little or no response to the more attenuated red/far-red wavelengths. Here, we show that two marine diatom species, Phaeodactylum tricornutum and Thalassiosira pseudonana, possess a bona fide red/far-red light sensin...
Se describe la construcción de una batería aluminio-hipoclorito sodio. La fue fabricada a partir reactivos caseros y materiales obtenidos en el supermercado. El diseño propuesto es pequeño, fácil ensamblar, batería, formada por única celda galvánica, capaz encender un diodo led rojo. Palabras clave: Aprendizaje experiencial; Experiencias química; Reactivos caseros; Batería; Celda electroquímica...
Techniques now available for the study of plasma disappearance kinetics of isotopically labeled unconjugated bilirubin have led to new insights into the factors that determine the plasma unconjugated bilirubin concentration (BR). This variable can be shown to depend in turn on five other parameters: the total circulating red cell volume (TRVC), the mean corpuscular hemoglobin concentration (MCH...
A portable instrument for oxygen determination, based on the quenching of phosphorescent octaethylporphyrin by gaseous O(2), has been developed using the fluorimetric paired emitter-detector diode technique (FPEDD). The instrument configuration consists of two light-emitting diodes (LEDs) facing each other, with an interchangeable support containing a phosphorescent membrane in between, in whic...
Blue and red light combination LED phototherapy for acne vulgaris in patients with skin phototype IV
Background and objective: An agrovoltaic system is a power generation method applying photovoltaics (PV) to crops cultivated on farm. Usually, the PV covers less than 30% of upper surface ground. If layer crops, yield will decrease by 15-20% due shading module. This study was carried out investigate effects red supplemental light-emitting diode (LED) lighting under growth agronomic traits green...
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