Results 31 to 40 of about 1,559,848 (287)

The effect of various pre-cured temperature of different resin materials on the degree of conversion and microhardness of cured composite resin [PDF]

open access: yesAl-Rafidain Dental Journal, 2014
Aims: The aims of this in vitro study were to evaluate the effect of different temperatures of the pre- cured composite resin materials on the degree of conversion and knoop microhardness of cured composite resin.
Manal A. Sultan
doaj   +1 more source

90 degree polarization rotator using a bilayered chiral metamaterial with giant optical activity

open access: yes, 2010
A bilayered chiral metamaterial (CMM) is proposed to realize a 90 degree polarization rotator, whose giant optical activity is due to the transverse magnetic dipole coupling among the metallic wire pairs of enantiomeric patterns.
Jackson J. D.   +3 more
core   +1 more source

The difference nanocomposite hardness level using LED photoactivation based on curing period variations

open access: yesPadjadjaran Journal of Dentistry, 2011
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

Macropolyhedral boron-containing cluster chemistry. Ligand-induced two-electron variations of intercluster bonding intimacy. Structures of nineteen-vertex[(eta(5)-C5Me5) HIrB18H19(PMe2Ph)] and the related carbene complex [(eta(5)-C5Me5)HIrB18H19{C(NHMe)(2)}] [PDF]

open access: yes, 2004
Addition of PMe2Ph to fused-cluster syn-[(η5-C5Me5)IrB18H20] 1 to give [(η5-C5Me5)HIrB18H19(PMe2Ph)] 3 entails a diminution in the degree of intimacy of the intercluster fusion, rather than retention of inter-subcluster binding intimacy and a nido ...
Jelinek, T.   +5 more
core   +1 more source

Effect of the Time of Salivary Contamination during Light Curing on Degree of Conversion and Microhardness of a Restorative Composite Resin

open access: yesBiomimetics, 2018
Saliva contamination is a major clinical problem in restorative procedures. The purpose of this study was to evaluate the effect of the time of salivary contamination during light curing on the degree of conversion and the microhardness of a restorative ...
Rasoul Sahebalam   +3 more
doaj   +1 more source

On multi-degree splines

open access: yes, 2017
Multi-degree splines are piecewise polynomial functions having sections of different degrees. For these splines, we discuss the construction of a B-spline basis by means of integral recurrence relations, extending the class of multi-degree splines that ...
Beccari, Carolina Vittoria   +2 more
core   +1 more source

Anisotropically high entanglement of biphotons generated in spontaneous parametric down conversion [PDF]

open access: yes, 2006
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

Pengaruh Intensitas Cahaya terhadap Derajat Konversi Komposit Nano Partikel

open access: yesJournal of Dentistry Indonesia, 2015
One of the factors that could influence the degree of conversion of composite restorative material is light intensity. Many researchers have done investigation on the degree of conversion of hybrid, microfiller and microhybrid composite.
Sri Fitriyani   +2 more
doaj   +1 more source

Spatially-entangled Photon-pairs Generation Using Partial Spatially Coherent Pump Beam

open access: yes, 2018
We demonstrate experimental generation of spatially-entangled photon-pairs by spontaneous parametric down conversion (SPDC) using a partial spatially coherent pump beam.
Defienne, Hugo, Gigan, Sylvain
core   +1 more source

Control of conditional pattern with polarization entanglement

open access: yes, 2003
Conditional interference patterns can be obtained with twin photons from spontaneous parametric down-conversion and the phase of the pattern can be controlled by the relative transverse position of the signal and idler detectors.
Caetano, D. P.   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy