Results 11 to 20 of about 90,351 (306)

Polysaccharide extraction from Myxopyrum smilacifolium trunk and its antioxidant capacity

open access: yesTạp chí Khoa học Đại học Huế: Khoa học Tự nhiên, 2023
As a traditional medicinal plant in Vietnam, Myxopyrum smilacifolium has been used for a long history to treat cough, nervous disorders, numbness, rheumatism, and cephalalgia.
Le Trung Hieu   +9 more
doaj   +1 more source

Hues of Color Afterimages [PDF]

open access: yesi-Perception, 2020
We studied the relationship between color afterimages and complementary colors. The hues of afterimages of 24 inducer hues, uniformly distributed over the rgb color circle, were measured by an iterative method of adjustment. The judgment of equality of hue of the afterimage and a synthesized patch was effectively judged at the moment immediately after ...
Koenderink, Jan J.   +4 more
openaire   +9 more sources

Unique hues as revealed by unique-hue selecting versus partial hue-matching [PDF]

open access: yesAttention, Perception, & Psychophysics, 2013
Unique hues are usually defined as those that cannot be introspectively reduced to any other hue. According to a major dogma of color science, there are four unique hues: yellow, blue, red, and green. Yet only 55 of the 173 inexperienced observers who participated in our experiment selected exactly four Munsell papers that, according to their judgment,
Logvinenko, Alexander, Geithner, Corin
openaire   +3 more sources

Development of Cleaning Evaluation Application Using Hue Change as a Parameter

open access: yesImage Analysis and Stereology, 2022
In the cleaning field, there is a method to evaluate the amount of soiling by processing the color signal of a soiled sample’s image using the Kubelka-Munka formula, but this method could not be adapted to the case where the hue changes drastically ...
Toru Tsukizawa   +2 more
doaj   +1 more source

Manipulating Pixels in Computer Graphics by Converting Raster Elements to Vector Shapes as a Function of Hue

open access: yesJournal of Imaging, 2023
This paper proposes a method for changing pixel shape by converting a CMYK raster image (pixel) to an HSB vector image, replacing the square cells of the CMYK pixels with different vector shapes. The replacement of a pixel by the selected vector shape is
Tajana Koren Ivančević   +3 more
doaj   +1 more source

Helicobacter pylori 23S rRNA gene mutations associated with clarithromycin resistance in chronic gastritis in Vietnam

open access: yesJournal of Infection in Developing Countries, 2018
Introduction: Data about the prevalence of the A2142C, A2142G, and A2143G mutations in 23S rRNA gene is still limited. The aim of this study was to determine the prevalence of these mutations in 23S rRNA gene of H.
Van Huy Tran   +5 more
doaj   +1 more source

Community-based prevalence versus hospital-based incidence of genital Human Papillomavirus infection in Central Vietnam

open access: yesJournal of Infection in Developing Countries, 2018
Introduction: This study aims to determine the genital HPV prevalence in reproductive-age women in Thua Thien Hue Province and comparison with HPV incidence in Hue University Hospital, Vietnam.
Vu Quoc Huy Nguyen   +7 more
doaj   +1 more source

Inheritance of coat colour in Slovak Pinzgau cattle [PDF]

open access: yesJournal of Central European Agriculture, 2016
The objective of the work was analysis of chestnut coat colour inheritance of Slovak Pinzgau cattle in accordance to age and farming system. In 304 cows of breeding groups P0,P1,P2 and R3 born between 2000 to 2010 from four breeding herds (4 agricultural
Radovan Kasarda   +4 more
doaj   +1 more source

Relationship between Colonization by Onion Thrips (Thrips tabaci Lind.) and Leaf Colour Measures across Eight Onion Cultivars (Allium cepa L.)

open access: yesAgronomy, 2021
Thrips tabaci Lindeman is a global pest and also represents a serious threat to onion production in Poland. In 2 years (2015–2016) of field studies, 8 onion cultivars were evaluated to characterize their susceptibility to onion thrips and to determine if
Maria Pobożniak   +2 more
doaj   +1 more source

Digital imaging of coffee leaves under different nitrogen concentrations applied to soil

open access: yesRevista Ceres, 2023
Brazil is the largest Coffea arabica L. producer and exporter in the world market. In view of the need for nitrogen fertilization, the objective of this work was to evaluate the use of digital images of coffee leaves as a function of nitrogen ...
Leandro José Grava de Godoy   +5 more
doaj   +1 more source

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