Results 21 to 30 of about 5,802,458 (360)

LHCA4 residues surrounding red chlorophylls allow for fine-tuning of the spectral region for photosynthesis in Arabidopsis thaliana

open access: yesFrontiers in Plant Science, 2023
Improving far-red light utilization could be an approach to increasing crop production under suboptimal conditions. In land plants, only a small part of far-red light can be used for photosynthesis, which is captured by the antenna proteins LHCAs of ...
Xiuxiu Li   +8 more
doaj   +1 more source

Ambiguous red shifts [PDF]

open access: yesAIP Conference Proceedings, 2010
A one-parameter conformal invariance of Maxwell's equations allows the wavelengths of electromagnetic waves to change as they propagate, and do so even in otherwise field-free space. This produces an ambiguity in interpretations of stellar red shifts.
Carl E. Wulfman   +4 more
openaire   +3 more sources

Absorption and Fluorescence Properties of 3,6-bis(5-bromothiophen-2-yl)-2,5-bis(2-ethylhexyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione. A Covalent Fluorescence in Solution and in the Solid State

open access: yesمجلة بغداد للعلوم, 2022
In the cuurent article, the photophysical properties of 3,6-bis(5-bromothiophen-2-yl)-2,5-bis(2-ethylhexyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione were investigated.
Roza Al-Aqar
doaj   +1 more source

Spectral Evolution in Fiber Lasers With Soliton Self-Frequency Shift Effect

open access: yesIEEE Photonics Journal, 2021
The generation and evolution process of red shifting in a ultrafast fiber laser with the soliton self-frequency shift are investigated by numerical simulation.
Mengmeng Han   +3 more
doaj   +1 more source

Red-Shift Effect and Sensitive Responsivity of MoS2/ZnO Flexible Photodetectors. [PDF]

open access: yesNanoscale Res Lett, 2015
The optoelectronic characteristics of molybdenum disulfide (MoS2)/ZnO flexible photodetectors are investigated. A red-shift effect and improved photocurrent properties of the flexible devices are demonstrated.
Hsiao YJ, Fang TH, Ji LW, Yang BY.
europepmc   +2 more sources

Purification and Characterisation of Two Novel Pigment Proteins from the Carapace of Red Swamp Crayfish (Procambarus clarkii)

open access: yesFoods, 2021
Pigment proteins play a vital role in the red colour change of the red swamp crayfish (Procambarus clarkii) shell after cooking. In this study, two red-change-related pigment proteins with molecular weights of approximately 170 and 43 kDa—denoted as F1 ...
Hao Chen   +7 more
doaj   +1 more source

Cosmology and the massive photon frequency shift in the Standard-Model Extension

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
The total red shift z might be recast as a combination of the expansion red shift and a static shift due to the energy–momentum tensor non-conservation of a photon propagating through Electro-Magnetic (EM) fields.
Alessandro D. A. M. Spallicci   +3 more
doaj   +1 more source

Enantioselective Recognition of Lysine and Phenylalanine Using an Imidazole Salt-Type Fluorescent Probe Based on H8-BINOL

open access: yesMolecules, 2022
An imidazole bromide fluorescent probe (R)-1 based on chiral H8-BINOL was synthesized with a high yield; it was found to have good enantioselective recognition of lysine and phenylalanine using fluorescence analysis.
Zhaoqin Wei   +3 more
doaj   +1 more source

Proton transport model in the ionosphere. 2. Influence of magnetic mirroring and collisions on the angular redistribution in a proton beam [PDF]

open access: yesAnnales Geophysicae, 1998
We investigate the influence of magnetic mirroring and elastic and inelastic scattering on the angular redistribution in a proton/hydrogen beam by using a transport code in comparison with observations.
M. Galand   +3 more
doaj   +1 more source

Crystallographic and optical studies on Cr doped ZnS nanocrystals

open access: yesCerâmica, 2014
Chromium doped ZnS nanocrystals with pure and 10% compositions were synthesized by chemical co-precipitation route. Samples were characterized by X-ray diffraction (XRD) technique, Fourier transforms infrared spectroscopy (FTIR) and UV-Visible ...
M. R. Bodke, Y. Purushotham, B. N. Dole
doaj   +1 more source

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