Results 31 to 40 of about 3,696,340 (368)
Evaluation of push-out bond strength of surface treatments of two esthetic posts
Objectives: To evaluate the push-out bond strength of two surface treatments of a glass fiber and zirconia ceramic post. Materials and Methods: Sixty samples were fabricated and divided into two main groups according to the type of esthetic post ...
Cherif Adel Mohsen
doaj +1 more source
The strength of a chemical bond [PDF]
AbstractWe discuss the physical criteria that have been proposed as a measure of the strength of a chemical bond. Critical examination of the strengths and weaknesses of the various quantities shows that the force constant is the most general measure for determining the strength of a chemical bond in molecules.
Lili Zhao+3 more
openaire +2 more sources
Vascular endothelial‐cadherin as a marker of endothelial injury in preclinical Alzheimer disease
Abstract Objective Endothelial dysfunction is an early and prevalent pathology in Alzheimer disease (AD). We here investigate the value of vascular endothelial‐cadherin (VEC) as a cerebrospinal fluid (CSF) marker of endothelial injury in preclinical AD.
Rawan Tarawneh+5 more
wiley +1 more source
Bond Strength of Fusion Bonded Epoxy-Coated Reinforcement in Concrete
Fusion-bonded epoxy-coated steel is expected to extend the service life of the reinforced concrete structure in chloride-laden environments. However, the effect of coating on the bond-strength between rebar and concrete is not well understood yet.
G M Sadiqul Islam+3 more
doaj +1 more source
Background: The rapid developments in the field of adhesive dental materials have led to improvements in many aspects of clinical dentistry. Adhesive bond strength plays an important role in determining the clinical performance and longevity of dental ...
A. E. El Mourad
semanticscholar +1 more source
The incidence of loose brackets during orthodontic treatment has reached 5%; therefore, loose brackts should be rebonded. Rebonding without etching might decrease chair time without compromising bond strength.
Nada Ismah, Erwin Siregar, Faruk Hoesin
doaj +1 more source
In this article, the ABAQUS finite element software is used to simulate the bond behavior of the steel bar in salt–frost-damaged recycled coarse aggregate concrete, and the influence of the steel bar diameter and the concrete cover thickness on the bond ...
Su Tian+6 more
doaj +1 more source
The push-out bond strength of calcium silicate-based endodontic sealers
BackgroundThe aim was to compare the dislodgement resistance of calcium silicate-based sealers (Total Fill BC Sealer, Endo CPM Sealer, BioRoot RCS) with an epoxy resin-based sealer (AH Plus).MethodsThe root canals of 80 single-rooted human teeth were ...
D. Donnermeyer+3 more
semanticscholar +1 more source
Time gap effect on bond strength of 3D-printed concrete
An advancing technology that combines the concrete extrusion with a motion control to create structures with complex geometrical shapes without the need for formwork is known as 3D concrete printing.
Y. Tay+5 more
semanticscholar +1 more source
On the Hydrogen Bond Strength and Vibrational Spectroscopy of Liquid Water
In the present work, we introduce two new metrics i.e. hydrogen-bond strength and charge-transfer between the donor/acceptor water molecules as a measure of hydrogen-bond rearrangement dynamics. Further, we also employ a simple model based on energy flux
D. Ojha, K. Karhan, T. Kühne
semanticscholar +1 more source