Results 11 to 20 of about 284,341 (264)

An investigation on the uncertainty of fill factor

open access: yesEPJ Photovoltaics
This study focuses on the fill factor (FF) measurement uncertainty contributing to the uncertainty in the labeling of the nominal maximum power (Pmax) of photovoltaic modules, which is determined under Standard Test Conditions (STC). Given that the price
Pavanello Diego   +2 more
doaj   +2 more sources

Filling Factors of Sunspots in SODISM Images [PDF]

open access: yesAnnals of Emerging Technologies in Computing, 2019
The calculated filling factors (FFs) for a feature reflect the fraction of the solar disc covered by that feature, and the assignment of reference synthetic spectra. In this paper, the FFs, specified as a function of radial position on the solar disc, are computed for each image in a tabular form.
Alasta, Amro   +4 more
openaire   +6 more sources

Predicting fill for sparse orthogonal factorization [PDF]

open access: yesJournal of the ACM, 1986
In solving large sparse linear least squares problems A x ≃ b, several different numeric methods involve computing the same upper triangular factor R of A . It is of interest to be able to compute the nonzero structure of R , given only the ...
Thomas F. Coleman   +2 more
openaire   +3 more sources

Diffraction by gratings with random fill factor [PDF]

open access: yesApplied Optics, 2017
In this work, we analyze the diffraction produced by Ronchi gratings where the fill factor is not constant, but presents random fluctuations around its nominal value. This effect can be produced while developing the grating with etchers since the process can be slightly unpredictable.
Torcal Milla, Francisco José   +1 more
openaire   +4 more sources

Volume Filling Factors of the Dig [PDF]

open access: yes, 2005
4 pages, 3 figures. To be published in "How does the Galaxy work?", eds. E.J. Alfaro, E. Perez & J. Franco, Kluwer (Proc. of conference held 23-27 June 2003 in Granada, Spain)
Mitra, Dipanjan   +2 more
openaire   +2 more sources

Filling-Factor-Dependent Magnetophonon Resonance in Graphene [PDF]

open access: yesPhysical Review Letters, 2007
We describe a peculiar fine structure acquired by the in-plane optical phonon at the Gamma-point in graphene when it is brought into resonance with one of the inter-Landau-level transitions in this material. The effect is most pronounced when this lattice mode (associated with the G-band in graphene Raman spectrum) is in resonance with inter-Landau ...
Goerbig, M.O.   +3 more
openaire   +4 more sources

Validation of the Filling Factor Index to Study the Filling Process of the Semg Signal in the Quadriceps

open access: yesJournal of Electromyography and Kinesiology, 2023
The EMG filling factor is an index to quantify the degree to which an EMG signal has been filled. Here, we tested the validity of such index to analyse the EMG filling process as contraction force was slowly increased.Surface EMG signals were recorded from the quadriceps muscles of healthy subjects as force was gradually increased from 0 to 40% MVC ...
Javier Rodriguez-Falces   +4 more
openaire   +5 more sources

On the Beam Filling Factors of Molecular Clouds [PDF]

open access: yesThe Astrophysical Journal, 2021
Abstract Imaging surveys of CO and other molecular transition lines are fundamental to measuring the large-scale distribution of molecular gas in the Milky Way. Due to finite angular resolution and sensitivity, however, observational effects are inevitable in the surveys, but few studies are available on the extent of uncertainties ...
Qing-Zeng Yan   +4 more
openaire   +2 more sources

The volume filling factor of the WIM [PDF]

open access: yesInternational Astronomical Union Colloquium, 1997
AbstractA compilation of data on the volume filling factor fv of the warm ionized medium (WIM) as a function of the local electron density ne indicates that approximately fv ∝ n−1e over 4 decades. This result is expected for a fractal ISM.
openaire   +1 more source

Effect of Sand and Dust Shading on the Output Characteristics of Solar Photovoltaic Modules in Desertification Areas

open access: yesEnergies, 2023
Photovoltaic power generation is rapidly developing as a kind of renewable energy that can protect the ecological environment. The establishment of photovoltaic power stations in desertification areas can play a very important role in desert windbreaks ...
Mingzhi Zhao   +6 more
doaj   +1 more source

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