Results 91 to 100 of about 62,934 (293)

Evaluation of contiguous implants with cement-retained implant-abutment connections. A minipig study [PDF]

open access: yesJournal of Osseointegration, 2014
Aim: The presence of a microgap at the implant-abutment interface may permit bacterial contamination and lead to bone resorption, interfering with papillae formation.
Raquel Rezende Martins de Barros   +8 more
doaj  

Proportional controller Patent [PDF]

open access: yes, 1967
Proportional controller for regulating aircraft or spacecraft motion about three ...
Menefee, E. O.
core   +1 more source

Seismic Design of Concrete Dams: An Integrated Risk‐Informed Performance‐Based (RIPB) Framework

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This paper advances the integration of risk‐informed principles into the seismic design of dams—a domain long guided by standards‐based, largely deterministic approaches. While performance‐based earthquake engineering is well established for buildings and bridges, its systematic adoption in dam engineering remains limited. We first address two
M. Amin Hariri‐Ardebili, Larry K. Nuss
wiley   +1 more source

Effects of abutment-implant combinations with different elastic moduli on osteogenic performance

open access: yes工程科学学报, 2019
Many factors affect the success of dental implant surgery, such as surgical trauma, excessive chewing pressure, material performance mismatch, and improper abutment-implant connection.
LIN Yi-ling   +10 more
doaj   +1 more source

Development of a device to simulate tooth mobility [PDF]

open access: yes, 2010
Objectives: The testing of new materials under simulation of oral conditions is essential in medicine. For simulation of fracture strength different simulation devices are used for test set-up.
Bieniek KW   +18 more
core   +1 more source

Failure Mechanism of Asymmetric Large Deformations Under Repeated Mining in Roadways

open access: yesEnergy Science &Engineering, EarlyView.
Principal stress‐evolution diagram at different advance positions of 42205 working face. ABSTRACT To address the challenge of controlling severe asymmetrical deformation in roadways subjected to repeated mining, this study (i.e., based on the engineering context of the Buertai Coal Mine) investigated the characteristics of the regional stress field in ...
Ai‐Rong Wang   +3 more
wiley   +1 more source

Variable length strut with longitudinal compliance and locking capability [PDF]

open access: yes, 1985
A variable length strut device is illustrated for connecting two associated structures which includes an outer load bearing shell, a drive assembly, a length varying compliance assembly positioned by drive assembly, and a strut rod locking assembly.
Belew, R. R.
core   +1 more source

In vitro comparative study of fibroblastic behaviour on polymethacrylate (PMMA) and lithium disilicate polymer surfaces [PDF]

open access: yes, 2019
Polymethyl methacrylate (PMMA) and lithium disilicate are widely used materials in the dental field. PMMA is mainly used for the manufacture of removable prostheses; however, with the incorporation of CAD-CAM technology, new applications have been ...
Castillo-Oyagüe, Raquel   +5 more
core   +1 more source

Similar Material Simulation Study on Dam Movement and Deformation Law of Deep Coal Seam Mining Under Dam

open access: yesEnergy Science &Engineering, EarlyView.
Aiming at the difficulties in accurately calculating the movement and deformation of small‐sized, deep‐buried dams with a significant height‐to‐depth ratio in deep fully mechanized caving mining, this study proposes to separate the analysis of surface and dam deformation.
Zhang Feng   +7 more
wiley   +1 more source

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