Results 1 to 10 of about 12,493,842 (419)

Energy transfer in two-dimensional magnetohydrodynamic turbulence: formalism and numerical results [PDF]

open access: yesPhysica D, 157, (2001) 207, 2001
The basic entity of nonlinear interaction in Navier-Stokes and the Magnetohydrodynamic (MHD) equations is a wavenumber triad ({\bf k,p,q}) satisfying ${\bf k+p+q=0}$. The expression for the combined energy transfer from two of these wavenumbers to the third wavenumber is known. In this paper we introduce the idea of an effective energy transfer between
Batchelor   +16 more
arxiv   +3 more sources

ENERGY RECEPTION AND TRANSFER IN PHOTOSYNTHESIS [PDF]

open access: bronzeReviews of Modern Physics, 1958
The basic information about the path of carbon in photosynthesis is reviewed together with the methods that were used to discover it. This has led to the knowledge of what is required of the photochemical reaction in the form of chemical species. Attention is then directed to the structure of the photochemical apparatus itself insofar as it is viewable
Melvin Calvin
openalex   +8 more sources

Light Absorption and Energy Transfer in the Antenna Complexes of Photosynthetic Organisms

open access: yesChemical Reviews, 2017
The process of photosynthesis is initiated by the capture of sunlight by a network of light-absorbing molecules (chromophores), which are also responsible for the subsequent funneling of the excitation energy to the reaction centers.
Jessica M Anna   +2 more
exaly   +2 more sources

Dependence of the Energy Transfer to Graphene on the Excitation Energy [PDF]

open access: yesarXiv, 2015
Fluorescence studies of natural photosynthetic complexes on a graphene layer demonstrate pronounced influence of the excitation wavelength on the energy transfer efficiency to graphene. Ultraviolet light yields much faster decay of fluorescence, with average efficiencies of the energy transfer equal to 87% and 65% for excitation at 405 nm and 640 nm ...
Izabela Kaminska, Sebastian Mackowski
arxiv   +5 more sources

Dexter energy transfer pathways [PDF]

open access: yesProceedings of the National Academy of Sciences, 2016
Significance Controlling the dynamics of excitons—including their transport, fission, fusion, and free carrier generation—presents a central challenge in energy science, optoelectronics, and photobiology. We develop a coupling-pathway theory for triplet energy transfer, a process controlled by the structure of the medium between donor and ...
S. Skourtis   +4 more
semanticscholar   +6 more sources

Smoothing the energy transfer pathway in quasi-2D perovskite films using methanesulfonate leads to highly efficient light-emitting devices

open access: yesNature Communications, 2021
Quasi-two-dimensional (quasi-2D) Ruddlesden–Popper (RP) perovskites such as BA2Csn–1PbnBr3n+1 (BA = butylammonium, n > 1) are promising emitters, but their electroluminescence performance is limited by a severe non-radiative recombination during the ...
Lingmei Kong   +15 more
semanticscholar   +1 more source

Thermodynamic Analysis and Optimization Design of a Molten Salt–Supercritical CO2 Heat Exchanger

open access: yesEnergies, 2022
The performance of a heat exchanger is directly related to the energy conversion efficiency of the thermal storage system, and its optimal design is an important method to improve the performance of the heat exchanger.
Xiaoming Dong   +4 more
doaj   +1 more source

Energy Transfer in Metal–Organic Frameworks for Fluorescence Sensing

open access: yesACS Applied Materials and Interfaces, 2022
The development of materials with outstanding performance for sensitive and selective detection of multiple analytes is essential for the development of human health and society.
Jian-Xin Wang   +5 more
semanticscholar   +1 more source

Isothermal Performance of Heat Pipes: A Review

open access: yesEnergies, 2022
Heat pipes transfer heat via phase transformation of the working fluid, where the working fluid will keep the temperature constant and absorb or release a large amount of latent heat during phase transformation.
Hongzhe Zhang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy