Present and Future of Build-up PWB's-Their Possibility and Limitation. Dielectric Materials for Build-up Printed Wiring Board.

Longevity of Amalgam Build-Up Restorations in Endodontically Treated Teeth

Background and Aim: Restoration of endodontically treated teeth is one of the most important and challenging topics in restorative dentistry. Longevity of such restorations is an essential factor in treatment planning. Amalgam build-up is a conservative method for restoration of endodontically treated teeth. Therefore, this study aimed to assess the longevity of this type of restoration in endo...

Measurements of output factors using different ionization chambers and build up caps

Background: The aim of this work was to study the output factors for Linac using different ionization chambers and build up caps. Materials and Methods: Output factors were measured for open square fields (3 × 3 cm to 40 × 40 cm) defined by collimator jaws for 6 and 15 MV photon beams from a Varian Clinac 2100C accelerator were measured. The measurements in air were performed using Com...

Sey and Electron Cloud Build-up with Neg Materials

A. Rossi, CERN, Geneva, Switzerland Abstract The LHC room temperature sections will be coated with non-evaporable getter (NEG) materials for, among other reasons, their properties of antimultipactor. Laboratory measurements of secondary electron yields (SEY) of TiZrV NEG coatings have shown that after 2 h heat treatment at 160 and 200 C, the maximum SEY decreases from 2 to below 1.4 and 1.1 res...

Evaluation of Physical Properties of Different Core Build- up Materials

Build them up and break them down

Tight junctions (TJs) of cells expressing simple epithelial polarity have been extensively studied, but less is known about TJs of cells expressing complex polarity. In this paper we analyzed, TJs of four different lines, that form bile canaliculi (BC) and express typical hepatocyte polarity; WIF-B9, 11-3, Can 3-1, Can 10. Striking differences were observed in claudin expression. None of the ce...