The LHCb experiment is primarily dedicated to the study of new physics through the heavy flavour decays. The tracking system of LHCb is composed of a silicon micro-strip vertex detector, two silicon strip tracker detectors and a set of straw-tube drift chambers in front of and behind a dipole generating a magnetic field. This system provides precise measure of the vertex position and high momen...

We used a surgical procedure suggested by Murata et al. and inserted a T-silicon plate from the tympanic cavity into the opening of the eustachian tube in 2 cases of chronic otitis media. The goal of this surgery was to promote the regeneration and the epithelization of residual mucosa of the eustachian tube. In our results, epitheliums of regenerated tympanic mucosa were histologically examine...

The chemical dry etching of silicon nitride (Si3N4)and silicon nitride (SiO2) in a downstream plasma reactor using CF4, O2, and N2 has been investigated. A comparison of the Si3N4 and SiO2 etch rates with that of polycrystalline silicon shows that the etch rates of Si3N4 and SiO2 are not limited by the amount of fluorine arriving on the surface only. Adding N2 in small amounts to a CF4 /O2 micr...

Rapid continuous thermal control of chemical reactions such as those for chemical vapor deposition (CVD) growth of nanotubes and nanowires cannot be studied using traditional reactors such as tube furnaces, which have large thermal masses. We present the design, modeling, and verification of a simple, low-cost reactor based on resistive heating of a suspended silicon platform. This system achie...

OBJECTIVE Transplantation of bone marrow stromal cells (BMSCs) or Schwann cells (SCs) can facilitate axonal regeneration in peripheral nerve injuries. The aim of this study was to compare the effects of transplantation of BMSCs and SCs on functional recovery after injury to the sciatic nerve in the rat. MATERIALS AND METHODS In this experimental research, adult male Wistar rats (n=24, 250-300...

Abstract Background Silicon carbide-fibre/silicon carbide matrix (SiC/SiC) composites are candidate materials for accident tolerant fuel cladding in light water and advanced gas cooled nuclear fission reactors. The mechanical damage behaviour of ceramic is sensitive to the composite geometry, microstructure loading state. Reliable test methods needed investigate subcritical that affects hermeti...

A 74-year-old man, receiving home oxygen therapy (HOT), required tracheal intubation and artificial ventilation because of methicillin-resistant staphylococcus aureus (MRSA)-induced pneumonia. Tracheostomy was additionally performed. One month later, he had recovered from pneumonia and the tracheostomy tube was withdrawn, allowing the patient to be discharged. One month after discharge, the pat...

With the rapid progress and wide application of Li-ion batteries, commercial graphite anode can not satisfy the increasing demand for higher capacities. Like other anode materials with higher capacities, silicon materials as anodes remain serious problems for their large volume variations and poor cyclabilities during cycling. One of key problem is how to stabilize the performances of Si anode ...

The steady reduction in the dimension of transistors, according to Moore's law has been the main force behind the regular leaps in the level of performance of the silicon ICs. Due to the effects like the short channel effects, tunnelling effect, additional heat dissipation, interconnect problems etc problems arise. So it is not possible to reduce the size further. Hence now it is necessary to a...

An ethylene-air laminar diffusion flame successfully provided silicon substrates of anodic aluminum oxide (AAO) template with vertically oriented well-aligned carbon nanotubes. Field emission scanning electron microscopy (SEM) showed that open-tipped carbon nanotubes consisting of tube elements with the same length and diameter uniformly coated the template. High-resolution transmission electro...