Results 111 to 120 of about 790,952 (308)

Gear Lubrication and Cooling Experiment and Analysis [PDF]

open access: yes
A gear tooth temperature analysis was performed using a finite element method combined with a calculated heat input, a calculated oil jet impingement depth, and estimated heat transfer coefficients for the different parts of the gear tooth that are oil ...
Akin, L. S., Townsend, D. P.
core   +1 more source

In‐vitro puncture experiment using alligator teeth tracks the formation of dental microwear and its association with hardness of the diet

open access: yesThe Anatomical Record, EarlyView.
Abstract With the development of dental microwear texture analysis (DMTA), there has been an increasing application of DMTA for dietary estimation in extant and fossil reptiles, including dinosaurs. While numerous feeding experiments exist for herbivorous mammals, knowledge remains limited for carnivorous reptiles. This study aimed to qualitatively and
K. Usami, M. O. Kubo
wiley   +1 more source

In Situ Valence Engineering of Copper Silicate Nanozymes with Enhanced Peroxidase‐Like Catalytic Activity for Oral Disease Detection

open access: yesAdvanced Science
As a series of attractive nanomaterials, nanozymes with great catalytic activity and specificity are well developed in the field of biosensors. Although promising, the lack of appropriate structural design strategy and limitation of sensing performance ...
Xiaocan Liu   +9 more
doaj   +1 more source

Dynamic measurements of gear tooth friction and load [PDF]

open access: yes
As part of a program to study fundamental mechanisms of gear noise, static and dynamic gear tooth strain measurements were made on the NASA gear-noise rig.
Oswald, Fred B.   +2 more
core   +1 more source

Inter‐microscope comparability of dental microwear texture data obtained from different optical profilometers: Part II Deriving instrument‐specific correction equations for meta‐analyses using published data

open access: yesThe Anatomical Record, EarlyView.
Abstract Dental microwear texture analysis (DMTA) has emerged as a valuable method for investigating the feeding ecology of vertebrates. Over the past decade, three‐dimensional topographic data from microscopic regions of tooth surfaces have been collected, and surface texture parameters have been published for both extant and fossil species.
Mugino O. Kubo   +4 more
wiley   +1 more source

Effect of extended tooth contact on the modeling of spur gear transmissions [PDF]

open access: yes
In some gear dynamic models, the effect of tooth flexibility is ignored when the model determines which pairs of teeth are in contact. Deflection of loaded teeth is not introduced until the equations of motion are solved.
Coy, John J.   +3 more
core   +1 more source

Comparative and functional anatomy of masticatory muscles and bite force in opossums (Didelphimorphia, Didelphidae)

open access: yesThe Anatomical Record, EarlyView.
We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley   +1 more source

Moving an incisor across the midline: A treatment alternative in an adolescent patient [PDF]

open access: yes, 2011
A 13-year-old sought treatment for a severely compromised maxillary left central incisor and an impacted fully developed left canine. Extraction of both teeth became necessary.
Bosio, Jose A   +2 more
core   +1 more source

The relationship between form and function of the carnivore mandible

open access: yesThe Anatomical Record, EarlyView.
Abstract Dietary morphology diversified extensively in Carnivoraformes (living Carnivora and their stem relatives) during the Cenozoic (the last 66 million years) as they evolved to capture, handle, and process new animal and plant diets. We used 3D geometric morphometrics, mechanical advantage, and finite element analysis to test the evolutionary ...
Charles J. Salcido, P. David Polly
wiley   +1 more source

Outcomes of Primary Endodontic Therapy Provided by Endodontic Specialists Compared to Other Providers [PDF]

open access: yes, 2016
Introduction: The objective of this study was to compare the outcomes of initial non-surgical root canal therapy (NSRCT) for different tooth types provided by both endodontists and other providers.
Burry, Jacob
core   +1 more source

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