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[Oxygen concentrators are not ozone concentrators].
Pneumologie (Stuttgart, Germany), 1993Ozone is a constituent of the natural ambient atmosphere and occurs dependent on weather and environment in concentrations that can trigger airway inflammation. Oxygen concentrators are employed in oxygen long-term therapy and produce in the room air a mixture of concentrated oxygen and residual gases of unknown ozone concentration.
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Theory of Probability & Its Applications, 1978
Yudin, A. A., Postnikova, L. P.
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Yudin, A. A., Postnikova, L. P.
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Product Differentiation, Concentration, and Changes in Concentration
The Review of Economics and Statistics, 1978openaire +1 more source
Electrochemical concentrator for caustic concentration
200110.5 lakh tonnes of caustic soda is produced in India based on the membrane cell technology. Though membrane cells require 700 KWh lesser electrical energy per tonne of caustic, they produce caustic of concentration 32-33 wt%, which has to be concentrated to 45-46 wt% to meet the needs of the consumers.
Asokan, K., Krishnamoorthy, S.
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Force and EMG power spectrum during and after eccentric and concentric fatigue
Journal of Electromyography and Kinesiology, 2000P V Komi, P V Komi
exaly