Propagation Characteristics of Impulse Creepage Discharge in Perfluorocarbon Liquid

Residual perfluorocarbon liquid (PFCL) in human eyes.

Vaporized perfluorocarbon: taking the "liquid" out of liquid ventilation.

ALTHOUGH only a relatively limited amount of oxygen is dissolved in water under natural conditions, aquatic creatures enjoy great success in extracting sufficient amounts to meet the metabolic demands of life. Mammals (even aquatic mammals) avoid this limitation by using atmospheric oxygen through specialized gas exchange mechanisms in the lung. However, the niammalian lung can also extract suf...

Does perfluorocarbon deoxygenate during partial liquid ventilation?

Perfluorocarbons accumulate in the dependent regions of the lungs, which may result in regional hypoxia if ventilation with oxygen is insufficient to oxygenate the dependent perfluorocarbon-filled alveoli. In this issue of Critical Care, Max et al present data that demonstrate a decrease in arterial oxygen tension (PaO2) at 30 min compared to that observed at 5 min after administration of FC 32...

RF propagation in an HVAC duct system: impulse response characteristics of the channel

Usually, the heating, ventilation, and air conditioning (HVAC) duct system in buildings is a complex network of hollow metal pipes of rectangular or circular cross-section which behave as multimode waveguides when driven at RF and microwave frequencies of common interest. HVAC ducts can be used as a wireless communication channel for providing high-speed network access to offices [1]. An exampl...

Changes in retinal sensitivity from retained subretinal perfluorocarbon liquid.

PURPOSE To study the effect of retained subretinal perfluorocarbon liquid (PFCL) on retinal function. METHODS Scanning laser ophthalmoscope microperimetry was performed on four eyes with retained subretinal PFCL after vitreoretinal surgery for complicated retinal detachments with and without proliferative vitreoretinopathy. RESULTS Scotomas to the highest intensity stimulus were noted in th...