In order to enhance the compatibilization and interfacial adhesion between epoxy and liquid carboxyl-terminated butadiene acrylonitrile (CTBN) rubber, an initiator was introduced into the mixture and heated to initiate the cross-linking reaction of CTBN. After the addition of curing agents, the CTBN/epoxy blends with a localized interpenetrating network structure were prepared. The mechanical p...

OBJECTIVES Several adhesive systems are available for cementation of fibre posts into the root canal. The aim of the present study was to investigate the push-out bond strengths of quartz fibre posts to root dentin with the use of different total-etch and self-adhesive resin cements. STUDY DESIGN Ninety single-rooted human premolars were endodontically treated and standardized post-spaces wer...

The N-H bond in the title compound, C(8)H(7)Cl(2)NO, is anti to the meta-chloro substituent in the aromatic ring in both independent mol-ecules comprising the asymmetric unit. The C=O bond is anti to the N-H bond and is also anti to the methyl-ene H atoms. Inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into supra-molecular chains.

We investigate how the choice of the link atom bond length affects an electronic transition energy calculation with the so-called our own N-layer integrated molecular orbital molecular mechanics (ONIOM) hybrid method. This follows our previous paper [M. Caricato et al., J. Chem. Phys. 131, 134105 (2009)], where we showed that ONIOM is able to accurately approximate electronic transition energie...

In this paper we developed a control scheme starting from Bond Graph representation of the Quanser Flexible link experiment. The objective of the experiment is to design a control system that positions the flexible arm as well as regulating vibration. The structure of the control scheme uses two types of control methods. In order to achieve a faster or robust response together with optimal cont...

In the title compound, C(15)H(14)ClNO, the N-H bond is trans to the C=O bond. The dihedral angle between the two aromatic rings is 5.5 (2)°. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into chains running along the a axis.

The title mol-ecule, C(12)H(14)N(2)O(4), adopts a trans configuration with respect to the C=N double bond. The amino group is involved in an intra-molecular N-H⋯O hydrogen bond. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into doubled sheets parallel to the (101) plane.