Results 41 to 50 of about 151,072 (259)

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost   +4 more
wiley   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

Factors affecting molar root and periodontal hard tissue changes after orthodontic anterior molar closure of missing tooth spaces retrospective explored based on cone-beam computed tomography three-dimensional reconstruction [PDF]

open access: yesPeerJ
Objective To correlate the molar teeth and their periodontal conditions after orthodontic anterior removal of the molars to close the gap of missing teeth and to provide risk factor analysis and prognostic assessment for the treatment of such cases ...
Yuhao Huang   +5 more
doaj   +2 more sources

Estudo do comportamento mecânico dos compósitos de restauro dentário utilizando técnicas ópticas [PDF]

open access: yes, 2011
Os materiais compósitos são hoje em dia cada vez mais utilizados no restauro dentário. Estes materiais substituíram as tradicionais amálgamas que apresentavam alguns inconvenientes.
Campos, J.C. Reis   +5 more
core  

Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows

open access: yesAdvanced Engineering Materials, EarlyView.
A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba   +5 more
wiley   +1 more source

Transesterification Oil Chicken Using Different Catalysts

open access: yesSemina: Ciências Exatas e Tecnológicas, 2017
The aim of this study was to evaluate some catalysts in the production of esters from crude chicken and chicken oil pre-treated (neutralized by alkaline solution) oil.
Willian Secco   +3 more
doaj   +1 more source

Comparative treatment outcomes after bilateral extractions of maxillary second molars or first premolars in patients with class II malocclusion: a retrospective study

open access: yesHead & Face Medicine, 2023
Background This retrospective cohort study aimed to compare treatment results between bilateral extraction of upper second molars (M2) and first premolars (P1) in terms of treatment timing, cephalometry, upper third molar alignment and relapse in the ...
Eva Paddenberg   +4 more
doaj   +1 more source

Survey of dentists of knowledge about radiographic localization methods [PDF]

open access: yes, 2009
Objective: To verify dentists’ about radiographic localization methods. Methods: A field survey was conducted among 60 dentists, of whom 25 were general clinicians and 35 were specialists dentists, using a questionnaire with 14 discursive questions ...
Edmundo Medici Filho   +5 more
core  

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov   +6 more
wiley   +1 more source

Pattern of mandibular third molar impaction and its association to caries in mandibular second molar: A clinical variant

open access: yesDental Research Journal, 2017
Background: Caries in second molar is common and prophylactic removal of the impacted teeth may be considered appropriate. Caries detection and restoration can be difficult and a restored second molar can undergo recurrent caries if the third molar is ...
V K Prajapati, Ruchi Mitra, K M Vinayak
doaj   +1 more source

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