BACKGROUND The reduction of instrumental dead space is a recognized approach to preventing ventilation-induced lung injury in premature infants. However, there are no published data regarding the effectiveness of instrumental dead-space reduction in endotracheal tube (ETT) connectors. We tested the impact of the Y-piece/ETT connector pairs with reduced instrumental dead space on CO2 elimination...

The digital part of the radiometer project is broken into several stages of development (Digital IF, APB, FFT, etc) and it is important to be able to capture results from each stage. It is of equal importance that each stage be capable of interfacing to the proceeding stage. Consequently a standard interface was developed using a high density 68-pin SCSI3 connector. This is the same connector w...

During assembly, bacterial virus phi29 utilizes a motor to insert genomic DNA into a preformed protein shell called the procapsid. The motor contains one twelve-subunit connector with a 3.6 nm central channel for DNA transportation, six viral-encoded RNA (packaging RNA or pRNA) and a protein, gp16, with unknown stoichiometry. Recent DNA-packaging models proposed that the 5-fold procapsid vertex...

OBJECTIVE A groove technique for securing an electrode connector was described as an alternative surgical technique in deep brain stimulation (DBS) surgery to avoid electrode connector-related complications, such as skin erosion, infection, and migration. METHODS We retrospectively reviewed 109 patients undergoing one of two techniques; the standard technique (52 patients using 104 electrodes...

the aim of this study was to determine the effect of trenched zirconia bar on the von mises stress distribution of ips -empress ii core ceramics.the three-dimensional model including a three-unit bridge from the second premolar to the second molar was designed. the model was reinforced with zirconia bar (zb), zirconia bar with vertical trench (vzb) and zirconia bar with horizontal trench (hzb) ...

INTRODUCTION Before IS-1 (3.2 mm) standardization of pacemaker leads and connectors, 5/6 mm connector ports accomodated 5mm or 6mm diameter lead connector pins. CASE REPORT A patient with sick sinus syndrome underwent implantation of a 5mm unipolar atrial lead, mated to a 5/6mm connector port Medtronic Spectrax Sx 5985 pacemaker. Pulse generator reached ERI in 2006, with change out to a Medtr...

UNLABELLED Zirconia is currently used as a framework material for posterior all-ceramic bridges. While the majority of research efforts have focused on the microstructure and corresponding mechanical properties of this material, clinical fractures appear to be largely associated with the appliance geometry. OBJECTIVE The objective of this study was to estimate the maximum stress concentration...

Abstract Spectacular advances have been made in the field of machine vision over past decade. While this discipline is traditionally driven by geometric models, neural networks proven to be superior some applications and significantly expanded limits what possible. At same time, conventional graphic models describe relationship between images associated scene with textures light a physically re...

SpaceWire interconnection using a backplane which makes a system compact has been investigated. In the backplane interconnection system, high-speed signals are connected between daughter boards via connectors and a backplane. The connectors used to interface the daughter boards and the backplane are key components because the impedance mismatching and the transmission loss in the connector migh...

In this paper, experimental and Finite Element Methods have been used to determine mechanical properties of nanocomposites. Standard tensile and compression samples with 0.0, 0.15, 0.25, 0.35, 0.45, and 0.55 weight fraction of Multi-Walled Carbon Nanotube (MWCNT) were prepared and tested. Nanotube weight fraction was varied to investigate the effects of nanotube weight fraction on nanocomposite...