Results 11 to 20 of about 222,621 (134)
Examination of three candidate technologies for high-lift devices on an aircraft wing [PDF]
, 2005 A research programme was initiated to examine three candidate high-lift technologies, which would, if implemented, simplify the mechanical complexity of the multiple component trailing-edge devices traditionally employed on civil transport aircraft ...
Knepper, Angela Marie
core +7 more sources
Reduction of gear pair transmission error with tooth profile modification [PDF]
, 2008 The gear noise problem that widely occurs in power transmission systems is typically characterised by one or more high amplitude acoustic signals. The noise originates from the vibration of the gear pair system caused by transmission error excitation ...
Tharmakulasingam, R +2 more
core +6 more sources
Measurement of tooth size and shape in subjects with hypodontia and a control group using a new image analysis technique. [PDF]
, 2000 The literature referred to here provided information concerning the epidemiology of hypodontia and its association with other developmental anomalies.
Al-Sharood, Mohammad H
core +6 more sources
Metals, 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
Tooth formation in Sudanese children [PDF]
, 2011 PhDThe aim of this study was to describe the average age of permanent mandibular tooth formation in two groups of Sudanese children using a cross-sectional design following STROBE guidelines.
Elamin, Fadil
core +4 more sources
An experimental study of airfoil instability tonal noise with trailing edge serrations [PDF]
, 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 ...
Joseph, PF, Chong, TP
core +1 more source
Self-noise produced by an airfoil with nonflat plate trailing-edge serrations [PDF]
, 2013 This paper represents the results of an experimental study aimed at reducing the airfoil self-noise by the trailing edge serration of four different sawtooth geometries (defined in the serration angle and length).
Vathylakis, A +3 more
core +1 more source
Evidence of a therapsid scavenger in the Late Permian Karoo Basin, South Africa
South 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
Frontiers 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
Anais 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