The Respirator as an Oxygen Apparatus

Predictable oxygen concentrations with the Bird respirator.

IN 1964, Fairley and Britt investigated the adequacy of the air-mix control of ventilators operated from an oxygen source. 1 The mean inspired oxygen percentages were measured at various cycling pressures, and with the Bird Mark 7 ventilator the oxygen levels varied from 51.5 to 96.8 per cent, being highest at low flows and at high cycling pressures. Consequently, these authors recommended that...

Use of the Haloxair apparatus with an oxygen concentrator.

Oxygen fail-safe device for an anaesthetic apparatus.

There are circumstances when the oxygen supply to an anaesthetic apparatus can fail. If this is not noticed immediately, the patient becomes anoxic. Many of the oxygen failure warning devices available at the present time only give a visual or audible signal of the failure and they rely on a second gas supply (usually nitrous oxide) and/or batteries for their operation (Falkner Hill, 1956; Hosp...

nano-rods zno as an efficient catalyst for the synthesis of chromene phosphonates, direct amidation and formylation of amines

چکیده ندارد.

The Bouncing Ball Apparatus as an Experimental Tool

The bouncing ball apparatus exhibits a rich variety of nonlinear dynamical behavior and is one of the simplest mechanical systems to produce chaotic behavior. A computer control system is designed for output calibration, state determination, system identification and control of the bouncing ball apparatus designed by Launch Point Technologies. Two experimental methods are used to determine the ...