Results 81 to 90 of about 70,530 (297)

Comparative study regarding the wear of gearwheels manufactured through additive technologies [PDF]

MATEC Web of Conferences, 2019
The article presents the results of the experimental research on the wear of gearwheels manufactured by an additive technology. It was realized eight gearwheels with the same module and number of teeth by means fused deposition modelling technology from ...
Besnea Daniel, Rizescu Ciprian, Moraru Edgar, Dinu Elena, Panait Iolanda   +4 more
doaj   +1 more source

Practical identification key for 14 Rubiaceae weed species of western and central Africa [PDF]

, 1997
Des adventices de la famille des rubiacées ont été identifiées en Afrique de l'Ouest et du Centre. Une clé de détermination comprend 8 caractères de l'appareil végétatif.
Carrara, Alain, Le Bourgeois, Thomas, Marnotte, Pascal, Salamero, J.   +3 more
core  

Evolutionary relationships and systematics of Atoposauridae (Crocodylomorpha: Neosuchia): implications for the rise of Eusuchia [PDF]

, 2016
Atoposaurids are a group of small-bodied, extinct crocodyliforms, regarded as an important component of Jurassic and Cretaceous Laurasian semi-aquatic ecosystems.
Mannion, PD, Tennant, JP, Upchurch, P
core   +3 more sources

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

The 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, Luke A. Norton, Aliénor Duhamel, Julien Benoit   +3 more
wiley   +1 more source

The Maxillary Concrescent Teeth Involving an Upper Wisdom Tooth and a Supernumerary Tooth in a Completely Hierarchical Position With Dentigerous Cysts: A Case Report

Case Reports in Dentistry
Concrescent teeth are a rare anomaly of the teeth defined as the cemental union of two or more adjacent teeth. With a frequency of 0.8% among all anomalous teeth, dentigerous cysts associated with concreted teeth are considered even rarer. In this report,
Eri Shibata, Atsushi Murayama, Yoshiharu Ogisawa, Atsushi Shudo   +3 more
doaj   +1 more source

Cone beam computed tomography aided endodontic and aesthetic management of fused mandibular incisors with communicating canals

Indian Journal of Dental Research, 2020
Endodontic treatment of fused teeth needs special care and attention due to its complex anatomy. The aim of this article is to highlight the problems encountered and the strategy in treating such cases.
Chellaswamy Savrimalai Karumaran, Anil Ramachandran Kumar, Kiran Kumar Neelakantappa, Rajasekaran Meenakshi Sundaran, Remya Venkatesan, Savitha Bhasker Naik   +5 more
doaj   +1 more source

Developing Consistency in Enamel Etching by CO\u3csub\u3e2\u3c/sub\u3e Laser [PDF]

, 1994
It has been reported that CO2 laser energy can be utilized to etch enamel. However, consistency of etching has been a significant problem. This research was designed to ascertain which exposure parameters result in consistent etching of enamel.
Gonzalez, Cesar, Zakariasen, Kenneth L.
core   +1 more source

A contribution to the anatomy of two rare cetacean species: The hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica)

The Anatomical Record, EarlyView.
Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc, Tommaso Gerussi, Bruno Cozzi, Rebecca M. Boys, Brian Chin Wing Kot, Matthew R. Perrott, Kane Fleury, Tabris Yik To Chung, Henry Chun Lok Tsui, Emma Burns, Trudi Webster, Stuart Hunter, Emma L. Betty, Odette Howarth, Carolina Loch, Sophie White, Steve Dawson, William Rayment, Ros Cole, Derek Cox, Tom Waterhouse, Hannah Hendriks, Anton van Helden, Muriel Johnstone, Ramari Oliphant Stewart, R. Ewan Fordyce, Karen A. Stockin   +26 more
wiley   +1 more source

The roots relative fused teeth of left maxillary first molar and second molar: a case report

口腔疾病防治, 2016
Fused teeth are one of the development abnormalities in tooth morphology which mainly occurred in the anterior teeth area and relatively rare in the posterior area.
ZHANG Ji-dong, WANG Hong-yuan, LIU Ai-qing, YU Qing-bin   +3 more
doaj   +1 more source

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

The Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx, Oliver Kersten, Youri van den Hurk, Brenna A. Frasier, Richard Sabin, Bastiaan Star, James H. Barrett   +6 more
wiley   +1 more source