Multi-atmospheric pressure, pulsed electric discharge excited lasers require pre-ionization to produce spatially uniform glows. Many such systems use corona bars to produce ultraviolet (UV) and vacuum ultraviolet (VUV) light as photo-ionization sources for this purpose. Corona bars are transient surface discharges, typically in a cylindrical geometry, that sustain high electron temperatures and...

Abstract A helicon plasma source has been designed using annular permanent magnets to produce the required DC magnetic field (B-field). With the discharge tube located in the remote field, rather than the internal field of the magnet rings, the plasma can be injected into a processing chamber containing the substrate to be treated. The discharge tube, radiofrequency (RF) antenna and magnet size...

BACKGROUND Post-discharge care remains a challenge because continuity of care is often interrupted and adverse events frequently occur. Previous studies have focused on early readmission but few have investigated emergency department (ED) visit after discharge. METHODS This retrospective observational study was conducted between April 2011 and March 2012 in a referral center in Taiwan. Patien...

This study was undertaken to determine the effect of interposed abdominal compressions (IAC) during cardiopulmonary resuscitation (CPR) on gastric insufflation when the airway is not secured with an endotracheal tube. A canine model was used in which a common ventilation pressure was applied to separate cuffed esophageal and tracheal tubes. Gas entering the stomach was collected by a pre-placed...

The present paper deals with a mathematical model of blood flow through narrow circular tube. The model consists of a core region of suspension of all the erythrocytes assumed to be a power law fluid and a peripheral cell-depleted layer of plasma as a Newtonian fluid. The system of differential equations has been solved analytically. The expressions for velocity profile, Bluntness parameter, fl...

In the application of atmospheric pressure plasma jet, influence ambient gas cannot be ignored, especially in some specific scenarios which are highly sensitive to particles. Coaxial double-tube jet device is a promising method controlling chemical properties effluent by restraining mutual diffusion between and gas. this work, discharge characteristics coaxial helium at different flow rates shi...

The gas discharge and photo-luminance properties of a planar lighting source featuring highly uniform light emission and mercury-free design were studied. The current density-voltage characteristics and the associated gas discharge of the devices operating with the values of the ratio of electric field to gas pressure (E/p) between 4.3 kV/Torr-cm and 35.7 kV/Torr-cm indicate that the width of t...

abstractbackground: mothers with premature infants face certain challenges such as uncertainty on how to deal with their infant's condition and care for it after discharge from neonatal intensive care unit (nicu).methods: a qualitative design was used to explain mothers' challenges after their infant's discharge from nicus in isfahan, iran, 2015. purposive sampling was adopted to...

This paper is a state of the art of the understanding on the physics of homogeneous dielectric barrier discharge at atmospheric pressure. It is based on the analysis of present and previous work about the behavior of these discharges and the conditions to get them. Mechanisms controlling the homogeneity during gas breakdown and discharge development are successively discussed. The breakdown has...