Results 111 to 120 of about 502,153 (332)

Measurement and comparison of bracket transfer accuracy of five indirect bonding techniques.

open access: yesAngle Orthodontist, 2014
OBJECTIVE To measure and compare bracket transfer accuracy of five indirect bonding (IDB) techniques. MATERIALS AND METHODS Five IDB techniques were studied: double polyvinyl siloxane (double-PVS), double vacuum-form (double-VF), polyvinyl siloxane ...
Ana E. Castilla   +5 more
semanticscholar   +1 more source

An In Situ Curing, Shear‐Responsive Biomaterial Designed for Durable Embolization of Microvasculature

open access: yesAdvanced Healthcare Materials, EarlyView.
NeoCast is a next‐generation, solvent‐free, non‐adhesive liquid embolic designed for indications where deep occlusion is desired (e.g., tumors and chronic subdural hematoma). This novel agent offers ideal embolic properties: injectability, controllability, excellent visibility, and biocompatibility.
Quynh P. Pham   +16 more
wiley   +1 more source

Non-equal-time Poisson brackets [PDF]

open access: yesarXiv, 1998
The standard definition of the Poisson brackets is generalized to the non-equal-time Poisson brackets. Their relationship to the equal-time Poisson brackets, as well as to the equal- and non-equal-time commutators, is discussed.
arxiv  

Isoclinism of Algebras With Bracket [PDF]

open access: yesarXiv, 2023
We introduce the notion of isoclinism between central extensions in the category of algebras with bracket. We provide several equivalent conditions under which algebras with bracket are isoclinic. We also study the connection between isoclinism and the Schur multiplier of algebras with bracket. It is shown that for finite-dimensional central extensions
arxiv  

Torque expression capacity of 0.018 and 0.022 bracket slots by changing archwire material and cross section

open access: yesProgress in orthodontics, 2014
BackgroundThe aim of this study is to calculate and compare the play and torque expression of 0.018 and 0.022 bracket slots when engaged with archwires of different size, cross section and material.MethodsEight orthodontic brackets, two of slot height 0 ...
Angela Arreghini   +3 more
semanticscholar   +1 more source

Carbon Fiber Reinforced Thermoplastics: From Materials to Manufacturing and Applications

open access: yesAdvanced Materials, EarlyView.
A contemporary and critical review on carbon fiber reinforced thermoplastics. The common thermoplastic and carbon fiber applied in the manufacture of carbon fiber reinforced thermoplastics are summarized, and the processing and postprocessing methods are reviewed, with emphasis on state‐of‐the‐art welding techniques.
Howard (Hao) Wang   +6 more
wiley   +1 more source

Causality and Peierls Bracket in Classical Mechanics [PDF]

open access: yesarXiv, 2010
Relation between the Peierls and the Poisson bracket is derived in classical mechanics of time-dependent systems. Equal-time Peierls brackets are seen to be the same as the Poisson brackets in simple cases but a proof for a general Hamiltonian is lacking.
arxiv  

Lifting of the Vlasov-Maxwell Bracket by Lie-transform Method

open access: yes, 2016
The Vlasov-Maxwell equations possess a Hamiltonian structure expressed in terms of a Hamiltonian functional and a functional bracket. In the present paper, the transformation ("lift") of the Vlasov-Maxwell bracket induced by the dynamical reduction of ...
Brizard, A. J.   +4 more
core   +2 more sources

Effect of bracket type on halitosis, periodontal status, and microbial colonization.

open access: yesAngle Orthodontist, 2014
OBJECTIVE To determine the effect of bracket type on halitosis, periodontal status, and microbial colonization. MATERIALS AND METHODS Forty-six patients scheduled for fixed orthodontic treatment (age 11-16 years) were selected from the orthodontic ...
R. Nalçacı   +5 more
semanticscholar   +1 more source

Anomalous Phonon Softening with Inherent Strain in Wrinkled Monolayer WSe2

open access: yesAdvanced Materials, EarlyView.
This study introduces the first discovery of a new local strain indicator, A2′′(Γ)$A_2^{^{\prime\prime}}( \Gamma )$ mode, for monolayer WSe2‐based excitonic applications including single photon emitter by using tip‐enhanced Raman spectroscopy. The correlative investigation with density functional perturbation theory provides the origin of the anomalous
Dong Hyeon Kim   +12 more
wiley   +1 more source

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