Articles with "frequency distribution" as a keyword



Assessing the scaling of the tree branch diameters frequency distribution with terrestrial laser scanning: methodological framework and issues

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Published in 2019 at "Annals of Forest Science"

DOI: 10.1007/s13595-019-0854-7

Abstract: Key messageThis article presents a specific methodology for assessing the scaling of the frequency distribution of the branch diameters within a tree from terrestrial laser scanning (TLS), using large oak trees (Quercus petraea(Matt.) Liebl.) as… read more here.

Keywords: allometry; terrestrial laser; branch; frequency distribution ... See more keywords

Frequency distribution model for geomagnetic SYM-H fluctuations

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Published in 2020 at "Acta Geodaetica et Geophysica"

DOI: 10.1007/s40328-020-00304-6

Abstract: A model describing the frequency distribution of geomagnetic field fluctuations has been developed, allowing a better understanding of the influence of the solar magnetic field on the geomagnetic variations. The constructed model is analogous to… read more here.

Keywords: frequency; frequency distribution; model geomagnetic; distribution model ... See more keywords

Bimodal frequency distribution of granular discharge in 2D hoppers

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Published in 2021 at "Chemical Engineering Science"

DOI: 10.1016/j.ces.2021.116945

Abstract: Abstract As a classical example of granular flow, gravity-driven hopper flow has been studied for decades, but an in-depth understanding of its fluctuation is still lacking, especially at small-scale and short-term. In this experimental and… read more here.

Keywords: frequency distribution; bimodal frequency; granular discharge; discharge hoppers ... See more keywords

Agile manipulation of the time-frequency distribution of high-speed electromagnetic waves

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Published in 2024 at "Nature Communications"

DOI: 10.1038/s41467-024-53025-7

Abstract: Controlling the temporal evolution of an electromagnetic (EM) wave’s frequency components, the so-called time-frequency (TF) distribution, in a versatile and real-time fashion remains very challenging, especially at the high speeds (> GHz regime) required in… read more here.

Keywords: time; frequency distribution; time frequency; manipulation ... See more keywords

Effect of breeding parents on the frequency distribution of cyanidin dominant progenies in purple-fleshed sweetpotato

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Published in 2024 at "Plant Production Science"

DOI: 10.1080/1343943x.2024.2423627

Abstract: ABSTRACT Purple-fleshed sweetpotato (PFSP) clones containing anthocyanins can be classified into two types based on their aglycone composition: normal peonidin-dominant (Pn-type) and unusual cyanidin-dominant (Cy-type) types. It is unclear how cyanidin dominance is selected in… read more here.

Keywords: purple fleshed; cyanidin; frequency distribution; fleshed sweetpotato ... See more keywords

Effect of Angora Goat Age and Growing Season on the Frequency Distribution Shapes of Different Types of OFDA Measured Medullated Fibres in Commercial Mohair Sale Lots

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Published in 2025 at "Journal of Natural Fibers"

DOI: 10.1080/15440478.2025.2528108

Abstract: ABSTRACT A previous paper reported on the inter-relationships between Angora goat age, the average levels of different types of medullated fibers, mean fiber diameter and diameter variability for over 1400 mohair commercial sale lots, representative… read more here.

Keywords: sale lots; goat age; different types; frequency distribution ... See more keywords

Simulation of the gravitational wave frequency distribution of neutron star–black hole mergers

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Published in 2021 at "Chinese Physics B"

DOI: 10.1088/1674-1056/abff28

Abstract: LIGO-Virgo has observed the gravitational waves (GWs) from the coalescence of binary black hole (BBH) and binary neutron star (BNS) during O1 and O2, and the ones from NS-BH are expected to be hunted in… read more here.

Keywords: frequency distribution; frequency; black hole; distribution ... See more keywords
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Frequency, Distribution, and Antimicrobial Resistance of Coagulase-Negative Staphylococci Isolated from Clinical Samples in Dogs and Cats.

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Published in 2021 at "Microbial drug resistance"

DOI: 10.1089/mdr.2020.0586

Abstract: This study aimed to investigate the frequency, distribution, and antimicrobial resistance of coagulase-negative staphylococci (CoNS) obtained from clinical samples from dogs and cats and to classify any methicillin-resistant CoNS (MRCoNS). The samples were collected in… read more here.

Keywords: distribution antimicrobial; resistance coagulase; antimicrobial resistance; resistance ... See more keywords

Lesion Frequency Distribution Maps of Traumatic Axonal Injury on Early Magnetic Resonance Imaging After Moderate and Severe Traumatic Brain Injury and Associations to 12 Months Outcome

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Published in 2024 at "Journal of Neurotrauma"

DOI: 10.1089/neu.2023.0534

Abstract: Traumatic axonal injury (TAI) is a common finding on magnetic resonance imaging (MRI) in patients with moderate–severe traumatic brain injury (TBI), and the burden of TAI is associated with outcome in this patient group. Lesion… read more here.

Keywords: tai; injury; lesion; frequency distribution ... See more keywords

Optic disc area frequency distribution in a large sample of retinographic images

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Published in 2022 at "BMJ Open Ophthalmology"

DOI: 10.1136/bmjophth-2022-000972

Abstract: Objective To describe a new method to estimate the frequency distribution of optic nerve disc area, using digital retinographic images. Methods and analysis We analysed 492 023 fundus images obtained with seven fundus cameras, mainly in… read more here.

Keywords: frequency distribution; frequency; disc area; retinographic images ... See more keywords

Respiratory and sleep characteristics based on frequency distribution of craniofacial skeletal patterns in Korean adult patients with obstructive sleep apnea

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Published in 2020 at "PLoS ONE"

DOI: 10.1371/journal.pone.0236284

Abstract: Objective To investigate the frequency distribution of various craniofacial skeletal patterns in a large Korean adult obstructive sleep apnea (OSA) population, and to find a relationship between craniofacial risks and respiratory and sleep characteristics. Methods… read more here.

Keywords: skeletal; frequency distribution; sleep characteristics; skeletal patterns ... See more keywords