Results 111 to 120 of about 215,710 (307)

Simulation of broaching operations for tool design optimization [PDF]

open access: yes, 2010
In this study, an approach for simulation of broaching operations is presented. The proposed approach calculates the cutting forces, power, maximum stress at the tooth root, chip thickness and rake angle distribution on all teeth, and the workpiece ...
Budak, Erhan   +6 more
core  

Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano   +5 more
wiley   +1 more source

渐开线少齿数齿轮齿形系数和应力修正系数的实验研究

open access: yesJixie chuandong, 2007
Experiment reseach about involute gear’s tooth form factor and stress correction factor by applying 30o tangent method is carried out. Tooth profile generating experiment to teeth number is carried out, measury tooth root chord at the critical section ...
孙伏, 张杰, 陈应舒
doaj  

Case of Pulp Regeneration Following Autologous Transplantation of an Incompletely Rooted Tooth

open access: yesCase Reports in Dentistry
Autologous tooth transplantation is a procedure that involves the replacement of a natural tooth with another at a new site or a surgically created recipient wound.
Hiroyuki Kimura   +2 more
doaj   +1 more source

Integrating mandibular evidence to assess morphological variation of the Australopithecus afarensis maxilla

open access: yesThe Anatomical Record, EarlyView.
Abstract Geometric morphometric analyses are used to explore variation of maxillary dental arcades of Australopithecus afarensis, expanding on the work of Hanegraef and Spoor, 2025 (Morphological variation of the Australopithecus afarensis maxilla.
Hester Hanegraef   +2 more
wiley   +1 more source

Intraspecific variation of cochlear morphology in bowhead and beluga whales

open access: yesThe Anatomical Record, EarlyView.
Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley   +1 more source

Tooth row allometry in domestic rabbits and nondomestic lagomorphs: Evidence for a decoupling of body and tooth row size changes in evolutionary time

open access: yesThe Anatomical Record, EarlyView.
Domestic rabbits of different body sizes differ disproportionately in the length of their tooth row or the length of their diastema. Abstract In various domestic mammals, smaller breeds tend to have proportionally larger teeth, whereas this is not a universal trend across mammals.
Ursina L. Fasciati   +3 more
wiley   +1 more source

Description of the skull, braincase, and dentition of Moschognathus whaitsi (Dinocephalia, Tapinocephalia), and its palaeobiological and behavioral implications

open access: yesThe Anatomical Record, EarlyView.
Abstract A subadult Moschognathus whaitsi from the Eastern Cape Province, South Africa, was scanned using synchrotron radiation X‐ray computed tomography (SRXCT). Its subadult state allowed the cranial bones and teeth to be identified and individually reconstructed in 3D.
Tristen Lafferty   +3 more
wiley   +1 more source

Several Questions about Gear Single Tooth Pulsating Bending Fatigue Test

open access: yesJixie chuandong, 2017
The methods of the tooth root bending fatigue test both at home and abroad are introduced,and several questions about single tooth pulsating test are explained and discussed,such as ensure the load distribution along tooth length direction,clamped tooth ...
Liu Ziqiang, Chen Liang, Wan Wenming
doaj  

Evaluation of root development of mandibular first molar of children (6-12) years old visiting P.O.P. department College of Dentistry/ Hawler Medical University.

open access: yesErbil Dental Journal, 2023
Background and objective: With FPMs between the ages of 6 and 12, the detection of open apex in some children at age 12 underlines the necessity for investigation prior to treating a deep carious lesion.Pulpal involvement was considered before the ...
Yara Ismail Ameen   +2 more
doaj  

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