Results 21 to 30 of about 398,011 (299)

The Relationship between Slope and Luminosity [PDF]

open access: yesKirkuk Journal of Science, 2010
In this study, a sample of galaxies has been adopted. It consists of 112 elliptical galaxies, among them were 56 dwarf elliptical galaxies, which belong to virgo cluster, 37 normal galaxies and 19 bright galaxies. Also, surface brightness profiles fitted
Mohsen H. Ali AL-Khafajy
doaj   +1 more source

The bolometric luminosities of stars [PDF]

open access: yesSymposium - International Astronomical Union, 1997
The total energy emitted by a star is one of its basic parameters. It is also one of the most difficult to determine, requiring space-based as well as ground-based measurements of the absolute flux from stars. We review the current status of these observations in the ultraviolet, visible, and near infrared, and estimate the uncertainties of the ...
R. C. Bless, J. W. Percival
openaire   +1 more source

Influência do sombreamento sobre os teores de carboidratos e fenóis em estacas semilenhosas de araçazeiro Influence of shading on the carbohydrates and phenols in cattley guava cutting

open access: yesPesquisa Agropecuária Brasileira, 1999
O presente trabalho teve por objetivo avaliar a influência do sombreamento sobre os teores de carboidratos não-estruturais e fenóis solúveis totais em folhas e caules de estacas de plantas matrizes de araçazeiro (Psidium cattleyanum Sabine).
João Guilherme Casagrande Junior   +4 more
doaj   +1 more source

A Novel Activated Charcoal Based Wash to Make Muga Silk Shiny

open access: yesJournal of Natural Fibers, 2023
Lustrous golden muga silk is endemic to the northeast part of India. Being pricey, the washing method plays a vital role in retaining the shininess of silk without compromising the fiber’s quality.
Minhaz Ahmed, Jyoti Prasad Saikia
doaj   +1 more source

Luminosity Measurements at the LHC at CERN Using Medipix, Timepix and Timepix3 Devices

open access: yesPhysics, 2021
The precise determination of the luminosity is essential for many analyses in physics based on the data from the particle accelerator Large Hadron Collider (LHC) at CERN. There are different types of detectors used for the luminosity measurements.
André Sopczak
doaj   +1 more source

0224 "The Image of Adam’s Glory"

open access: yesRIHA Journal, 2019
The imagery of the "radiant body" and "luminous garment" occurs frequently in early Christian references to the Edenic state of Adam and its partial reinstatement by Moses, Jesus, and numerous saintly (usually ascetic) figures.
Bogdan G. Bucur, Vladimir Ivanovici
doaj   +1 more source

K-corrections: an Examination of their Contribution to the Uncertainty of Luminosity Measurements

open access: yesThe Open Journal of Astrophysics, 2016
In this paper we provide formulae that can be used to determine the uncertainty contributed to a measurement by a K-correction and, thus, valuable information about which flux measurement will provide the most accurate K-corrected luminosity. All of this
Sean Lake, Ned Wright
doaj   +1 more source

High Luminosity Muon Collider Design [PDF]

open access: yes, 1996
Muon Colliders have unique technical and physics advantages and disadvantages when compared with both hadrons and electron machines. They should be regarded as complementary.
Gallardo, J. C., Palmer, R. B.
core   +3 more sources

Generating and Mapping Amazonian Urban Regions Using a Geospatial Approach

open access: yesISPRS International Journal of Geo-Information, 2020
(1) background: Urban representations of the Amazon are urgently needed in order to better understand the complexity of urban processes in this area of the World. So far, limited work that represents Amazonian urban regions has been carried out.
Pablo F. Cabrera-Barona   +4 more
doaj   +1 more source

Morphometry and Germination of Passovia pyrifolia, Struthanthus marginatus and Phoradendron mucronatum Diaspores [PDF]

open access: yesPlanta Daninha, 2018
: The goal of this work was to characterize morphometrically diaspores from three species of mistletoes (Passovia pyrifolia, Struthanthus marginatus e Phoradendron mucronatum), as well as to study its germination behavior according to temperature and ...
J.M.L. AZEVEDO   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy