FRP strengthening has been sought as an option for strengthening pre-stressed concrete deck unit bridges in Queensland, Australia.
CPs 1 and 3 exhibit similar one-dimensional (1-D) zigzag chains containing an octahedral [ZnO4N2] unit bridged by N-donor ligands in the crystal lattice.
We have synthesized two new donor-fluorene-donor type organic dyes (JFJ and TFT) which contain an alkyl fluorene unit bridging two donor groups.
Both PSICF and PSICN consist of a bicyclopentadisilole unit bridged by an electron-accepting group Y (Y=CCF2 in PSICF and Y=CC CN 2 in PSICN).
Theoretical prediction agreed well with the experimentally obtained R-curve of the glass matrix optomechanical composite, which proves the dominance of minicomposite unit bridging in the improvement of its fracture resistance.
Minicomposite unit bridging, which was experimentally determined to be the dominant toughening mechanism resulting in the R-curve behavior of the Al2O3 ZrO2 minicomposite-reinforced glass matrix optomechanical composite, was studied quantitatively using luminescence spectroscopy.
Using the obtained interfacial properties and crack opening displacement versus crack length relations, R-curve behavior of the optomechanical composite was studied quantitatively assuming that minicomposite unit bridging is the only toughening mechanism operative in the structure.
Cabinetry oftentimes defines a space by either, in the case of a low unit, bridging two spaces, or in the case of a tall unit, by dividing a space.
An 8-unit bridge fixed prosthesis replaced a large number of unerupted maxillary permanent teeth (#11, 21, 22, 23) (Fig. 1).
In order to extend the conjugation extent, two extra phenyl units were attached to triphenylamine (TPA) units bridged with single bonds, double bonds or triple bonds, respectively.
The glass-ceramic developed in this study could be a good candidate for dental restorative applications, especially for posterior three-unit bridges.
