Results 101 to 110 of about 57,861 (304)
The Anatomical Record, EarlyView.Abstract In a large sample of adult crab‐eating macaques, we quantified sexual dimorphism in size, shape, and covariance across the whole skull and among anatomical regions of the cranium and mandible. All regions showed significant mean sex differences, but the magnitude of size and shape dimorphism varied substantially.
Andrea Cardini, Paul O'Higgins
wiley +1 more source
Jixie chuandongObjectiveThe microtopography formed on the tooth surface of face gears during grinding processing can significantly alter the contact mechanical behavior of the tooth surface.
LI Zhisheng +5 more
doaj
Transmission errors in precision worm gear drives [PDF]
Transmission error is a measure of the positioning accuracy of a gear system. This has been widely documented in gearing for many years as the source of problems in noise and vibration.
Fish, Michael Anderson
core
The Anatomical Record, EarlyView.Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri +8 more
wiley +1 more source
ANALYTICAL AND NUMERICAL METHODS TO OBTAIN CONTACT PATTERN OF CONVEXO-CONCAVE NOVIKOV GEARING [PDF]
Scientific Journal of Silesian University of Technology. Series Transport, 2014 Article presents analytical and numerical methods to obtain contact pattern of convexo-concave Novikov gearing. Two TCA (tooth contact analysis) methods were given wchich are based on equations of differential geometry. Difference between both of methods
Tadeusz MARKOWSKI, Michał BATSCH
doaj
Loaded tooth contact analysis of curve-face gear pair
Advances in Mechanical Engineering, 2017 As a new gear pair with variable transmission ratio, curve-face gear can be applied to percussion drill to simplify the structure. For the application of curve-face gear pair, the loaded tooth contact analysis of curve-face gear pair should be taken into
Chao Lin +3 more
doaj +1 more source
Statistical tolerance analysis of gears by Tooth Contact Analysis [PDF]
, 2006 To analyze the influence of geometrical variations of parts on functional characteristics, a powerful way consist to simulate its geometrical behaviour.
Bruyère, Jérôme +3 more
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Identification of the acoustic emission source during a comparative study on diagnosis of a spur gearbox [PDF]
, 2005 Condition monitoring of gears with vibration analysis is well established whilst the application of acoustic emission (AE) to gear defect diagnosis and monitoring is still in its infancy.
Mba, David, Tan, Chee Keong
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Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny
The Anatomical Record, EarlyView.Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund +4 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo +5 more
wiley +1 more source