Results 161 to 170 of about 44,878 (304)

Adhesion of Newly Developed Composite Resin Splinting Materials to Enamel: Effect of Enamel Surface Treatment

open access: yesDental Traumatology, EarlyView.
ABSTRACT Background/Aim To evaluate the shear bond strength (SBS) of newly developed composite resin materials intended for dental splinting to enamel and to determine whether phosphoric acid etching alone provides reliable adhesion. Material and Methods Four experimental materials (G‐Fix, Light Fix, Ortho Connect, and Ortho Connect Flow) were compared
Wonkyu Shin   +7 more
wiley   +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

Dens Invaginatus as a Biomechanical Risk Modifier in Dental Trauma: Finite Element Analysis

open access: yesDental Traumatology, EarlyView.
ABSTRACT Introduction/Aims Traumatic dental injuries are common in childhood and may adversely affect functional and psychosocial well‐being. Dens invaginatus, a developmental anomaly caused by the infolding of the enamel organ during odontogenesis, alters tooth morphology and may influence biomechanical behavior under traumatic loading.
Emine Şuranur Ayaz   +6 more
wiley   +1 more source

Quiet Clean Short-haul Experimental Engine (QCSEE) main reduction gears detailed design report [PDF]

open access: yes
Lightweight turbine engines with geared slower speed fans are considered. The design of two similar but different gear ratio, minimum weight, epicyclic star configuration main reduction gears for the under the wing (UTW) and over the wing (OTW) engines ...
Defeo, A., Kulina, M.
core   +1 more source

Noise Exposure in a Dental Teaching Hospital: Investigations and Recommendations for Dental Personnel

open access: yesEuropean Journal of Dental Education, EarlyView.
ABSTRACT Introduction Exposure to excessive noise is a highly preventable occupational risk, with irreversible side effects that may negatively impact an individual's quality of life, such as noise‐induced hearing loss and tinnitus. Dental personnel may be at particular risk due to their exposure to high levels of noise from dental equipment.
Liath O' Shea   +3 more
wiley   +1 more source

The role of thermal and lubricant boundary layers in the transient thermal analysis of spur gears [PDF]

open access: yes
An improved convection heat-transfer model has been developed for the prediction of the transient tooth surface temperature of spur gears. The dissipative quality of the lubricating fluid is shown to be limited to the capacity extent of the thermal ...
Akin, L. S.   +3 more
core   +1 more source

Loaded tooth contact analysis of spiral bevel gears with kinematically correct motion transmission

open access: yes, 2018
sponsorship: DEMETRA ...
Vivet, Mathijs   +5 more
openaire   +2 more sources

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