Results 101 to 110 of about 133,721 (303)
Observations of acoustic emission activity during gear defect diagnosis. [PDF]
, 2003 It is widely recognised that acoustic emission (AE) is gaining ground as a non- destructive technique (NDT) for health diagnosis on rotating machinery.
Mba, David, Toutountzakis, Tim
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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
3D anatomical atlas of the heads of male and female adult Chamaeleo calyptratus
The Anatomical Record, EarlyView.The veiled chameleon is a model organism in reptile development research. Utilizing contrast‐enhanced microCT and deep learning segmentation models, we have generated the first digital atlases of the skull, nervous system, cranial muscles and hyolingual muscles.
Alice Leavey +3 more
wiley +1 more source
Study on the Time-varying Mesh Stiffness of Speed-increasing Gear Pair with Non-uniform Wear
Jixie chuandong, 2019 Taking an involute cylindrical speed-increasing gear pair as the research object, the tooth surface contact pressure and the relative sliding velocity are deduced to establish the non-uniform wear model of the spur gear pair based on the Hertz contact ...
He Zeyin +3 more
doaj
The Anatomical Record, EarlyView.Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley +1 more source
MachinesErrors affect the actual meshing process of gears, alter the actual wear pattern of the tooth profile, and may even impact the overall service life of machinery.
Jingqi Zhang +5 more
doaj +1 more source
Environmental enrichment for Killer whales Orcinus orca at zoological institutions: untried and untested [PDF]
, 2017 Despite a history in zoological institutions stretching back more than 50 years, with associated improvements in husbandry and breeding, the keeping of Killer whales Orcinus orca in zoos and aquariums has become highly controversial.
Kitchener, A.C., Law, G.
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Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)
The Anatomical Record, EarlyView.Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto +3 more
wiley +1 more source
The Prevalence of Tooth Wear in an Adult Population from the Eastern Province of Saudi Arabia
Clinical, Cosmetic and Investigational Dentistry, 2020 Khalifa S Al-Khalifa Department of Preventive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi ArabiaCorrespondence: Khalifa S Al-KhalifaCollege of Dentistry, Imam Abdulrahman Bin Faisal University, P.O.
Al-Khalifa KS
doaj
Investigating the performance of TiN and TiAIN coatings on milling cutter used for machining bimetal steel strip [PDF]
, 2009 Surface engineering of cutting tools (single point or multipoint) through advanced coatings (e.g., TiN) has contributed towards considerable improvement of tool life, productivity and machining quality [1] by modifying the tool substrate.
Haider, Julfikar, Sarwar, Mohammed
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