Results 81 to 90 of about 150,301 (303)
The Anatomical Record, EarlyView.Abstract Invasive gray squirrels (Sciurus carolinensis) have replaced the native red squirrel (Sciurus vulgaris) across much of Great Britain over the last century. Several factors have been proposed to underlie this replacement, but here we investigated the potential for dietary competition in which gray squirrels have better feeding performance than ...
Philip G. Cox, Peter J. Watson
wiley +1 more source
Transmission error in spur gears: Static and dynamic finite-element modeling and design optimization [PDF]
, 2010 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University, 07/10/2010.The gear noise problem that widely occurs in power transmission systems is typically characterised by one or more high amplitude acoustic ...
Tharmakulasingam, Raul
core
The Anatomical Record, EarlyView.Abstract Dental microwear texture analysis (DMTA) is widely applied for inferring diet in vertebrates. Besides diet and ingesta properties, factors like wear stage and bite force may affect microwear formation, potentially leading to tooth position‐specific microwear patterns.
Daniela E. Winkler +2 more
wiley +1 more source
Research on Meshing Simulation Analysis Method for Complex Flanks Based on Surface Synthesis Method
Jixie chuandong, 2022 According to the space meshing theory, the mathematics model of conjugate surfaces is constructed. Based on the coordinate transformation of this model, the mathematical solution of the wheel and pinion tooth surfaces is obtained. On the basis of surface
Li Jiaqi +3 more
doaj
, 2003 P(論文)In recent years, demand for esthetic dentistry has grown, particularly with respect to treatment of discolored anterior teeth. Tooth discoloration and pigmentation can be treated by polishing or bleaching the tooth, or by laminate veneering ...
SAITO,Takashi/IBARAKI,Yuji/KAWAKAMI,Tomofumi/MATSUDA,Koichi +2 more
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The Anatomical Record, EarlyView.Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley +1 more source
The 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
The 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
Jixie chuandong, 2022 To improve the comprehensive dynamic meshing performance of a certain gear product， a design method for controlling the polynomial coefficients of the topological modification of the tooth surface is proposed.
Jiaqi Li, Congcong Song, Bingyang Wei
doaj
工程科学与技术, 2013 :Spatial engaging theory was used to deduce mathematical equation of gear surface. Mathematical equation of arc tooth line of cylindrical gear surface shaped by origin face of rotary cutter,which could be used for both theoretical analysis and computer ...
肖华军 +4 more
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