Results 51 to 60 of about 502,054 (243)
Steel Bracket Connection on Modular Buildings
, 2017 Modular construction methods have been adapted globally for the past few decades and are becoming more common due to their ease of use and flexibility.
J. Doh +5 more
semanticscholar +1 more source
Log-Canonical Coordinates for Poisson Brackets and Rational Changes of Coordinates [PDF]
J. Geom. Phys, 121 (2017) 288--296, 2017 Goodearl and Launois have shown that for a log-canonical Poisson bracket on affine space there is no rational change of coordinates for which the Poisson bracket is constant. Our main result is that if affine space is given a log-canonical Poisson bracket, then there does not exist any rational change of coordinates for which the Poisson bracket is ...
arxiv +1 more source
Angle Orthodontist, 2016 OBJECTIVE To compare pain experience between self-ligating and conventional preadjusted edgewise appliance systems with a two-arm parallel trial. MATERIALS AND METHODS A prospective multicenter randomized controlled clinical trial was conducted in ...
Shahla Rahman +5 more
semanticscholar +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
doaj +1 more source
Quantum deformation of the Dirac bracket
, 2005 The quantum deformation of the Poisson bracket is the Moyal bracket. We construct quantum deformation of the Dirac bracket for systems which admit global symplectic basis for constraint functions. Equivalently, it can be considered as an extension of the
A. A. Raduta +15 more
core +1 more source
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
Orthodontics: Bracket Materials, Adhesives Systems, and Their Bond Strength
BioMed Research International, 2016 Adhesive interfaces influence greatly clinical success of modern dentistry. Durability of the interface can be determined by using several in vitro testing methods.
A. Scribante +3 more
semanticscholar +1 more source
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
, 1992 A joystick control device having a lower U-shaped bracket, an upper U-shaped bracket, a handle attached to the upper U-shaped bracket, with the upper U-shaped bracket connected to the lower U-shaped bracket by a compliant joint allowing six degrees of ...
Eklund, Wayne D., Kerley, James J.
core +1 more source
Orthodontic bracket bonding to glazed full-contour zirconia
Restorative Dentistry & Endodontics, 2016 Objectives This study evaluated the effects of different surface conditioning methods on the bond strength of orthodontic brackets to glazed full-zirconia surfaces.
Ji-Young Kwak +3 more
semanticscholar +1 more source