Results 41 to 50 of about 613,352 (286)

Exogenous ascorbic acid scarcely ameliorates inhibition of photosynthesis in rice leaves by O3

open access: yesPlant Production Science, 2017
The role of ascorbic acid on acute O3-induced inhibition of photosynthesis in solution-cultured paddy rice was evaluated. As pre-treatment, ascorbic acid (0, 5, and 10 mM) was added to the culture solution for 5 d before 5 h of O3 exposure (0, .1, and .3 
Hiroki Kobayakawa, Katsu Imai
doaj   +1 more source

Quantum mechanical bound for efficiency of quantum Otto heat engine

open access: yes, 2019
The second law of thermodynamics constrains that the efficiency of heat engines, classical or quantum, cannot be greater than the universal Carnot efficiency.
Chun, Hyun-Myung   +3 more
core   +1 more source

Low Light CMOS Contact Imager with an Integrated Poly-Acrylic Emission Filter for Fluorescence Detection

open access: yesSensors, 2010
This study presents the fabrication of a low cost poly-acrylic acid (PAA) based emission filter integrated with a low light CMOS contact imager for fluorescence detection. The process involves the use of PAA as an adhesive for the emission filter.
Yonathan Dattner, Orly Yadid-Pecht
doaj   +1 more source

An Analysis of Mobility Influence in Optoelectronics Parameters in an InGaN/GaN Blue LED

open access: yesCrystals, 2022
Simulations on mobility influence in optoelectronics parameters from an InGaN/GaN blue LED using the Nextnano++ software arepresented in this paper.
Sarai Zarate-Galvez   +7 more
doaj   +1 more source

Entanglement Creation Using Quantum Interrogation [PDF]

open access: yes, 2001
We present some applications of high efficiency quantum interrogation ("interaction free measurement") for the creation of entangled states of separate atoms and of separate photons.
A. Elitzur   +40 more
core   +3 more sources

Efficient Spatial Redistribution of Quantum Dot Spontaneous Emission from 2D Photonic Crystals

open access: yes, 2007
We investigate the modification of the spontaneous emission dynamics and external quantum efficiency for self-assembled InGaAs quantum dots coupled to extended and localised photonic states in GaAs 2D-photonic crystals.
A. Kress   +7 more
core   +1 more source

A High Quantum Efficiency Narrow-Band UV-B AlGaN p-i-n Photodiode With Polarization Assistance

open access: yesIEEE Photonics Journal, 2021
We designed and fabricated narrow-band UV-B AlGaN p-i-n photodiodes (PDs) with a full-width at half-maximum (FWHM) of 8 nm by optimizing the Al composition and thickness of the AlGaN layers. To improve the photoelectric response of the narrow-band PDs, a
Qianyu Hou   +10 more
doaj   +1 more source

Quantum efficiency measurement of single photon detectors using photon pairs generated in optical fibers

open access: yes, 2010
Using the correlated signal and idler photon pairs generated in a dispersion shifted fiber by a pulsed pump, we measure the quantum efficiency of a InGaAs/InP avalanche photodiode-based single photon detector.
Achilles   +35 more
core   +1 more source

Realizing low voltage-driven bright and stable quantum dot light-emitting diodes through energy landscape flattening

open access: yesLight: Science & Applications
Solution-processed quantum dot light-emitting diodes (QLEDs) hold great potential as competitive candidates for display and lighting applications. However, the serious energy disorder between the quantum dots (QDs) and hole transport layer (HTL) makes it
Yiting Liu   +12 more
doaj   +1 more source

Efficiencies Evaluation of Photocatalytic Paints Under Indoor and Outdoor Air Conditions

open access: yesFrontiers in Chemistry, 2020
The removal of indoor and outdoor air pollutants is crucial to prevent environmental and health issues. Photocatalytic building materials are an energy-sustainable technology that can completely oxidize pollutants, improving in situ the air quality of ...
Federico Salvadores   +4 more
doaj   +1 more source

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