Results 21 to 30 of about 445,914 (314)
Journal of Orofacial Sciences, 2020 Introduction: The aim of this study was to compare the shear bond strength at the resin/bracket interface of metal brackets sandblasted with aluminum oxide particles of 25 µm, 50 µm and 110 µm.
Abad Bocangel Salcedo-Alcaychahua +2 more
doaj +1 more source
Effect of thermocycling on shear bond strength of a conventional etch and rinse adhesive system [PDF]
Iranian Journal of Orthodontics, 2011 Aim: The objective of this study was to determine the effect of thermocycling on shear bond strengths (SBSs) of a light cured compositeafterdifferent thermal cycles.Materials and methods: 80 Bovine incisors were randomly divided into 4 groups of 20 teeth.
Abdolrahim Davari +3 more
doaj +1 more source
Consequences of enamel preparation with sodium hypochlorite, polyacrylic and phosphoric acids for the bonding of brackets with resin-modified glass ionomer cements [PDF]
Materials Research, 2013 The aim of this study was to evaluate the effects of deproteinization with 5.25% sodium hypochlorite (NaOCl) prior to enamel conditioning with 10% polyacrylic acid (PAA) and 35% phosphoric acid (PA) on the bond strength (BS) of brackets bonded with resin-
Alessandra Marques Trindade +6 more
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Effect of the In-Office Bleaching on the Shear Bond Strength of Orthodontic Brackets. [PDF]
Al-Rafidain Dental Journal, 2011 Aims: To evaluate the effect of In-Office enamel vital bleaching with (35% H2O2) and the effect of immersion in artificial saliva following bleaching on the shear bond strength of titanium orthodontic brackets bonded with an orthodontic composite ...
Khudair A AL-Jumaili , Omar Kh.M. Thiab
doaj +1 more source
Letters in Mathematical Physics, 2004 We survey the many instances of derived bracket construction in differential geometry, Lie algebroid and Courant algebroid theories, and their properties. We recall and compare the constructions of Buttin and Vinogradov, and we prove that the Vinogradov bracket is the skew-symmetrization of a derived bracket.
openaire +3 more sources
From Peierls brackets to a generalized Moyal bracket for type-I gauge theories [PDF]
, 2006 In the space-of-histories approach to gauge fields and their quantization, the Maxwell, Yang--Mills and gravitational field are well known to share the property of being type-I theories, i.e.
COSIMO STORNAIOLO +5 more
core +2 more sources
An intrinsic Hamiltonian formulation of the dynamics of LC-circuits [PDF]
, 1995 First, the dynamics of LC-circuits are formulated as a Hamiltonian system defined with respect to a Poisson bracket which may be degenerate, i.e., nonsymplectic.
Breedveld, P.C. +2 more
core +3 more sources
Supersymmetry and the Odd Poisson Bracket [PDF]
, 2002 Some applications of the odd Poisson bracket developed by Kharkov's theorists are represented, including the reformulation of classical Hamiltonian dynamics, the description of hydrodynamics as a Hamilton system by means of the odd bracket and the ...
Akulov +29 more
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Bracketing brackets with bras and kets [PDF]
Journal of Manufacturing Systems, 2021 10 pages, 9 ...
Emily Clark +3 more
openaire +2 more sources
Topological optimization of opening fence brackets on ring-stiffened cylindrical shell
Zhongguo Jianchuan Yanjiu, 2018 [Objectives] Stress concentration is prone to take place at connections between the opening fence and ring ribs of a ring-stiffened cylindrical shell under external pressure.
SONG Xiaofei +4 more
doaj +1 more source