Results 21 to 30 of about 95,614 (254)

THE GOODNESS OF SIMULTANEOUS FITS IN ISIS

Acta Polytechnica, 2016
In a previous work, we introduced a tool for analyzing multiple datasets simultaneously, which has been implemented into ISIS. This tool was used to fit many spectra of X-ray binaries. However, the large number of degrees of freedom and individual datasets raise an issue about a good measure for a simultaneous fit quality.
Kühnel, Matthias, Falkner, Sebastian, Grossberger, Christoph, Ballhausen, Ralf, Dauser, Thomas, Schwarm, Fritz-Walter, Kreykenbohm, Ingo, Nowak, Michael A., Pottschmidt, Katja, Ferrigno, Carlo, Rothschild, Richard E., Martínez-Núñez, Silvia, Torrejón, José Miguel, Fürst, Felix, Klochkov, Dmitry, Staubert, Rüdiger, Kretschmar, Peter, Wilms, Jörn   +17 more
openaire   +6 more sources

Modelo dinámico de crecimiento de bosques de Picea abies (L.) Karst. enAlemania

Recursos Rurais, 2014
In the present study a dynamic stand growth model for Norway spruce (Picea abies (L.) Karst.) forests was developed from data of 99 research plots, which had been measured between one and seventeen times in northwestern and southern Germany.
Andrea Hevia, František Vilcko, Juan Gabriel Álvarez-González   +2 more
doaj   +1 more source

Goodness of Fit Tests for Simultaneous Autoregressive Series

Journal of the Royal Statistical Society Series B: Statistical Methodology, 1953
Summary The simplified method of derivation of Quenouille’s (1947) goodness of fit test for an autoregressive stationary series with discrete time, given by Bartlett and Diananda (1950), is extended in the present paper to the case of simultaneous autoregressive series, for which some interesting new features arise.
Bartlett, M. S., Rajalakshman, D. V.
openaire   +2 more sources

Fitness Consequences of Reciprocally Asymmetric Hybridization between Simultaneous Hermaphrodites [PDF]

Zoological Science, 2009
Depending on fitness consequences, hybridization may rescue Inbred populations; generate premating barriers, reproductive Interference, or hybrid species; or extinguish a species. However, the fitness of hybrids is unpredictable without direct quantification of their performance in fitness components across multiple generations.
Amporn, Wiwegweaw, Keiichi, Seki, Hiroki, Utsuno, Takahiro, Asami   +3 more
openaire   +2 more sources

FITEXC – DIFFRACTION PROFILE FITTING PROGRAM RUN IN MS EXCEL

Acta Polytechnica CTU Proceedings, 2018
We present our custom made diffraction fitting program FitExc for the basic treatment of the 1D diffraction profiles, in particular, the Intensity(2θ) of X-ray, synchrotron or neutron diffraction measurements. In the current state, the program allows for
Petr Vertat, Jan Drahokoupil
doaj   +1 more source

Simultaneous fitting of X-ray and neutron diffuse scattering data [PDF]

Acta Crystallographica Section A Foundations of Crystallography, 2006
Conventional crystallographic refinement uses the Bragg-peak intensities and gives the single-site average crystal structure. Information about short-range order and local order is contained in the diffuse scattering that is distributed throughout reciprocal space. Models of the short-range order in materials can now be automatically refined.
Goossens, Darren, Welberry, Thomas, Heerdegen, Aidan, Gutmann, M J   +3 more
openaire   +3 more sources

Simultaneous multi-parameter analysis of detonation field based on line fitting of wavelength modulated second harmonic signals

AIP Advances, 2023
In the wavelength modulation method of laser absorption spectroscopy, the second harmonic signal contains numerous information about the flow field parameters.
Yinglian Yang, Ning Li, Xiaolong Huang, Yang Kang, Can Li, Xudong Fan, Chunsheng Weng   +6 more
doaj   +1 more source

Weighing the ocean with bottom-pressure sensors: robustness of the ocean mass annual cycle estimate [PDF]

Ocean Science, 2014
We use ocean bottom-pressure measurements from 17 tropical sites to determine the annual cycle of ocean mass. We show that such a calculation is robust, and use three methods to estimate errors in the mass determination.
Joanne Williams, C. W. Hughes, M. E. Tamisiea, S. D. P. Williams   +3 more
doaj   +1 more source

Improved allometric models to estimate the aboveground biomass of younger secondary tropical forests

Global Ecology and Conservation, 2023
Frequent human activities have resulted in a large number of tropical old-growth forests being replaced by secondary forests at different succession stages.
Bin Liu, Wensheng Bu, Runguo Zang
doaj   +1 more source

Simultaneous fitting of neutron star structure and cooling data

Physical Review C, 2019
Using a model for the equation of state and composition of dense matter and the magnitude of singlet proton superconductivity and triplet neutron superfluidity, we perform the first simultaneous fit of neutron star masses and radii determined from observations of quiescent low-mass x-ray binaries and luminosities and ages determined from observations ...
Spencer Beloin, Sophia Han, Andrew W. Steiner, Khorgolkhuu Odbadrakh   +3 more
openaire   +3 more sources