Results 11 to 20 of about 3,435 (159)

An experimental study of airfoil instability tonal noise with trailing edge serrations [PDF]

open access: yesJournal of Sound and Vibration, 2013
This paper presents an experimental study of the effect of trailing edge serrations on airfoil instability noise. Detailed aeroacoustic measurements are presented of the noise radiated by an NACA-0012 airfoil with trailing edge serrations in a low to ...
Arbey   +27 more
core   +3 more sources

Effects of Testing Temperature on the Serration Behavior of an Al–Zn–Mg–Cu Alloy with Natural and Artificial Aging in Sharp Indentation

open access: yesMetals, 2020
Serration phenomena, in which stress fluctuates in a saw-tooth shape, occur when a uniaxial test is performed on an aluminum alloy containing a solid solution of solute atoms.
Hiroyuki Yamada   +2 more
doaj   +1 more source

New Bathonian (Middle Jurassic) sauropod remains from the Valtos Formation, Isle of Skye, Scotland [PDF]

open access: yes, 2016
The discovery of a sauropod tooth and a single sauropod footprint from the Valtos Formation supplements our knowledge of these dinosaurs from the Middle Jurassic of the Isle of Skye.
Clark, Neil D.L., Gavin, Patrick
core   +4 more sources

Data from Periodontal Disease, Tooth Loss, and Risk of Serrated Polyps and Conventional Adenomas

open access: yes, 2023
<div>Abstract<p>Growing data indicate an association between periodontal disease and the development of cancer. However, the evidence for colorectal cancer has been inconsistent and longitudinal study examining its precursor lesions is lacking.
Mingyang Song   +6 more
openaire   +1 more source

On the genus Halirages (Crustacea, Amphipoda), with the description of two new species from Scandinavia and Arctic Europe [PDF]

open access: yes, 2012
A new common deep-sea species of Halirages Boeck, 1871 closely related to H.qvadridentatus G.O. Sars, 1877, H.cainae sp. nov., is described after specimens collected in the Norwegian Sea during the MAREANO 2009-111 cruise.
D'Udekem D'Acoz, Cédric
core   +3 more sources

Supplementary Data from Periodontal Disease, Tooth Loss, and Risk of Serrated Polyps and Conventional Adenomas

open access: yes, 2023
<p>Figure S1, Figure S2, Table S1, Table S2, Table S3, Table S4</p>
Mingyang Song   +6 more
openaire   +1 more source

Evidence of a therapsid scavenger in the Late Permian Karoo Basin, South Africa

open access: yesSouth African Journal of Science, 2012
Dicynodonts are an extinct group of herbivorous non-mammalian therapsids ('mammal-like' reptiles) that are widely known from terrestrial Permo-Triassic strata throughout Pangaea. Dicynodont fossil remains are common within the Late Permian Beaufort Group
Nicholas Fordyce   +2 more
doaj   +4 more sources

New Species of Sminthuridae from North America (Collembola: Symphypleona) [PDF]

open access: yes, 2017
(excerpt) This account is the result of efforts by Drs. Kenneth Christiansen and Peter Bellinger to amass and examine the major collections of North American Collembola.
Snider, Richard J
core   +2 more sources

LeafletAnalyzer, an Automated Software for Quantifying, Comparing and Classifying Blade and Serration Features of Compound Leaves during Development, and among Induced Mutants and Natural Variants in the Legume Medicago truncatula

open access: yesFrontiers in Plant Science, 2017
Diverse leaf forms ranging from simple to compound leaves are found in plants. It is known that the final leaf size and shape vary greatly in response to developmental and environmental changes.
Fuqi Liao, Jianling Peng, Rujin Chen
doaj   +1 more source

A new dinosaur (Theropoda, Spinosauridae) from the Cretaceous (Cenomanian) Alcântara Formation, Cajual Island, Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2011
A new spinosaurid taxon, Oxalaia quilombensis gen. et sp. nov., is described based on the anterior part of a snout and a fragment of a maxilla. These specimens were collected at the Laje do Coringa site, Late Cretaceous (Cenomanian) of the São Luis Basin.
Alexander WA. Kellner   +4 more
doaj   +1 more source

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