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Enhancing Retina Images by Lowpass Filtering Using Binomial Filter [PDF]

open access: yesDiagnostics
This study presents a method to enhance the contrast and luminosity of fundus images with boundary reflection. In this work, 100 retina images taken from online databases are utilized to test the performance of the proposed method.
Mofleh Hannuf AlRowaily   +4 more
doaj   +2 more sources

Characterizing the luminosity components of luminous infrared galaxies in multi-wavelength from the X-ray to the far-infrared [PDF]

open access: yesScientific Reports
We characterize luminosity components of Ultra/Luminous Infrared Galaxies (U/LIRGs) in multi-wavelength from the X-ray to far-infrared. A set of 63 AGN U/LIRGs was selected where these galaxies are powered by a central active galactic nucleus (AGN ...
Abdallah A. M. Ali   +3 more
doaj   +2 more sources

Leaf anatomy and morpho-physiological mechanisms of acclimation to high irradiance in heliconia genotypes

open access: yesCiência e Agrotecnologia, 2023
The amount of solar irradiation available in the growing environment can cause significant changes in physiology and leaf anatomy that enable crops to acclimate to different light conditions.
Fernanda Andrade Leite   +5 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

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

Design Concept for a Future Super Proton-Proton Collider

open access: yesFrontiers in Physics, 2022
Following the discovery of the Higgs boson at the LHC in 2012, new large colliders are being considered and studied by the international high-energy community to explore the Higgs boson in details and to probe new physics beyond the Standard Model.
Jingyu Tang, Jingyu Tang
doaj   +1 more source

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

Nitrogen supply and shading affect morphology and composition of the essential oil in marigold (Tagetes erecta L.)

open access: yesFolia Horticulturae, 2020
Terrestrial plants are constantly exposed to multiple environmental signals that influence their metabolism. Among these signals, nitrogen (N) nutrition and light affect importantly diverse metabolic and physiological processes. Herewith the effects of N
Peralta-Sánchez María G.   +5 more
doaj   +1 more source

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

Periphytic algae biomass at different shading levels: an experimental approach

open access: yesActa Limnologica Brasiliensia, 2021
: Aim Light is an essential component in the process of synthesis of organic compounds by photosynthetic organisms. Assuming that a higher level of luminosity would positively influence the production of biomass, we evaluated the influence of different ...
Helivania Sardinha dos Santos   +1 more
doaj   +1 more source

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