In root-treated anterior teeth a better aesthetic can be achieved by using translucent and tooth-coloured post and core restorations instead of traditional metal post systems. The aim of this in vitro study was to compare the fracture strength of tooth-coloured ceramic and fibre-reinforced posts as well as titanium posts with clinically proven gold alloy posts as a control. Two all-ceramic, one...

The second-generation high-temperature superconducting tapes (2G-HTS) such as the REBCO coated conductors are known for their strong mechanical properties and high current carrying capacity with low ac losses compared first-generation HTS well low-temperature superconductors. Therefore, they seem to be good candidates assemble coils rotating electric machines (SuREMs). In this article, investig...

This article considers the issue of wide implementation in various branches national economy caused intensive growth electric machines production. Due to high specific consumption magnetic materials production machines, a very promising direction is development waste-free technology manufacture cores and by methods powder metallurgy. The use metallurgy allows reducing losses electrical steel el...

A new method for fabricating carbon fiber composite pyramidal truss cores was developed based on the molding hot-press technique. In this method, all the continuous fibers of composite are aligned in the direction of struts and thus, the truss structure can fully exploit the intrinsic strength of the fiber reinforced composite. The microstructure and organizations of fibers of fabricated compos...

This present study had three aims: 1) to evaluate the bond strengths of carboxylate and resin cements in cementing cast Co-Cr crowns to pretreatment of composite resin cores with eugenol and non-eugenol containing temporary cements, 2) to determine the microhardness of composite resin treated with temporary cement, 3) to view the surface differences of composite resin with SEM. The composite co...

The MiniMag is a magnetic manipulation system capable of 5 degreeof-freedom (5-DOF) wireless magnetic control of an untethered microrobot (3-DOF position, 2-DOF pointing orientation). The system has a spherical workspace with an intended diameter of approximately 10 mm, and is completely unrestrained in the rotational degrees-of-freedom. This is accomplished through the superposition of multipl...

Highly oriented soft underlayers with face-centered-cubic ~fcc! phase Co, Co alloy, and composite NiFe/Co film structures have been epitaxially grown on single crystal Si wafers by sputter deposition. The epitaxial orientation relationships have been determined by x-ray diffraction and transmission electron microscopy. It was found that the soft underlayer magnetic properties can be modified in...

V. LINKING ........................................................................................ 144 A. Hard Cores ............................................................................... 145 B. Soft Cores ................................................................................. 147 C. Libraries .....................................................................................