Results 41 to 50 of about 1,549,267 (194)
The polymerization efficiency of a bulk-fill composite based on matrix-modification technology [PDF]
ObjectivesTo evaluate the polymerization efficiency of a matrix-modified bulk-fill composite, and compare it to a conventional composite which has a similar filler system.
Tarek M. Elshazly +4 more
doaj +1 more source
Anisotropically high entanglement of biphotons generated in spontaneous parametric down conversion [PDF]
We show that the wave packet of a biphoton generated via spontaneous parametric down conversion is strongly anisotropic. Its anisotropic features manifest themselves very clearly in comparison of measurements performed in two different schemes: when the ...
Efremov, M. A. +5 more
core +2 more sources
Polimerizatian is the critical stage to determine the quality of composites resin, this involves isolated monomer carbon double bonds being converted to an extended network of single bonds.
Hasiana Tatian +2 more
doaj +1 more source
Two-Way Automata Making Choices Only at the Endmarkers
The question of the state-size cost for simulation of two-way nondeterministic automata (2NFAs) by two-way deterministic automata (2DFAs) was raised in 1978 and, despite many attempts, it is still open.
Geffert, Viliam +2 more
core +1 more source
With the purpose of further reducing surface free energy to achieve better anti-bacterial adhesion effect of fluorinated dimethacrylate (FDMA)/tricyclo (5.2.1.0) decanedimethanol diacrylate (SR833s) based dental resin composites (DS), 1H,1H ...
Shengcan Zhang, Fang Liu, Jingwei He
doaj +1 more source
Demonstration of Temporal Distinguishability in a Four-Photon State and a Six-Photon State
An experiment is performed to demonstrate the temporal distinguishability of a four-photon state and a six-photon state, both from parametric down-conversion. The experiment is based on a multi-photon interference scheme in a recent discovered NOON-state
D. M. Greenberger +7 more
core +1 more source
Correlation between shear bond strength and degree of conversion of four orthodontic adhesives.
Background and objective: The aim of the study is to assess the correlation between degree of monomer conversion (DC) and shear bond strength (SBS) of the different adhesives.
Hangaw Tariq Ibrahim +1 more
doaj
Stimulated Emission Tomography: Beyond Polarization
In this work we demonstrate the use of stimulated emission tomography to characterize a hyper-entangled state generated by spontaneous parametric down-conversion in a CW-pumped source.
Ciampini, Mario Arnolfo +6 more
core +1 more source
Optimal Constant-Time Approximation Algorithms and (Unconditional) Inapproximability Results for Every Bounded-Degree CSP [PDF]
Raghavendra (STOC 2008) gave an elegant and surprising result: if Khot's Unique Games Conjecture (STOC 2002) is true, then for every constraint satisfaction problem (CSP), the best approximation ratio is attained by a certain simple semidefinite ...
Yoshida, Yuichi
core +1 more source
Degree of Conversion of Polymer-matrix Composite assessed by FTIR Analysis
ABSTRACT Aims and objectives The behavior of polymer-matrix composite is dependent on the degree of conversion. The aim of this study was to evaluate the degree of conversion of two resin cements following storage at 37°C immediately, 24 and 48 hours, and 7 days after light-curing by FTIR analysis.
Tonetto, Mateus Rodrigues +7 more
openaire +4 more sources

