Results 101 to 110 of about 150,301 (303)
The Anatomical Record, EarlyView.Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley +1 more source
Jixie chuandong, 2023 The ideal tooth surface in the meshing process of helical gears is an involute helical surface, but in the actual service process, there is a certain deviation between the actual tooth surface and the ideal tooth surface due to the influence of gear load,
Tian Xiaoqing +3 more
doaj
Effect of Shot Peening on Tooth Surface Properties and Tooth Surface Strength of Carburized Gears.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 2000 Clear results about the effect of shot peening on tooth surface strength of carburized gears have not been clarified. The author carried out experiments to study the effect of shot peening on tooth surface strength using test gears whose tooth surfaces were finished by grinding, where eight conditions of shot peening were processed.
openaire +2 more sources
Design of Spiral Bevel Gear Tooth Surface Topology [PDF]
, 2019 The driving performance of low-noise and high-strength spiral bevel gears（include spiral bevel gear and cycloid bevel gear） is required to be improved by advanced equipment.
Chuang Jiang, Jing Deng, Chunshui Wu
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The Anatomical Record, EarlyView.A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman +4 more
wiley +1 more source
Design Method for Twisting and Reducing Tooth Surfaces of Herringbone Gears for Form Grinding
Jixie chuandongTooth surface twisting is a kind of processing error generated when the spiral herringbone gear is formed and grinded. In order to reduce the tooth surface distortion and improve the grinding accuracy, a gear reverse twisting processing calculation ...
Zhang Xin, Liu Xinrong, Wang Huipeng
doaj
Tooth Surface Contact Analysis of the Face Gear Pair Involving the Worm Wheel Installation Error
Jixie chuandong, 2016 The actual tooth surface equation is established considering the worm wheel installation errors based on a five- axis linked CNC grinding machine. The tooth contact analysis（ TCA analysis） on the actual tooth surface of face gear and pinion tooth surface
Cui Wei, Tang Jinyuan, Zhou Zhenyu
doaj
General tooth surface with zero specific sliding [PDF]
, 1989 1989-03-31The formula of a general tooth surface with zero specific sliding is known in the case of skew gear. Bur this formula has not been given expression of the instantaneous axis of rotation, and so we can not describe the tooth surface formula ...
Ohara, Yoshiro
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The Anatomical Record, EarlyView.Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley +1 more source
Advances in Mechanical Engineering, 2015 The research of the load distributions and bending stresses with helix deviations in power transmission systems is important for effectively improving gear load capacity. The equations of tooth surface with helix slope and form deviation were established
Tao Luo +3 more
doaj +1 more source