Sentence examples for ppm in a from inspiring English sources

Therefore, we consider the problem of product portfolio management (PPM) in a competitive environment.

Donor rats were exposed to a non-toxic dose of CO (250 ppm) in a CO chamber for 24 hrs before harvesting.

Further, the output frequency fluctuation of the developed SAW oscillator was shown to be only approximately 0.7 ppm in a temperature-controlled laboratory environment for stability tests.

In the other experiment, NS was added to Murashige and Skoog (MS) medium with concentrations of 0, 50, 100, 150 and 200 ppm in a completely randomized design.

We observed a 20% reduction of the maximum NO concentrations (80 ppm) in a Bunsen flame by increasing the equivalence ratio from 1.38 to 1.70.

The global normalized yield reduction for 40μA beam is about 1.5% and the target density fluctuations contribute less than 238 ppm (parts per million) to the total asymmetry width, typically about 1200 ppm, in a Q2 bin.

First measurement results of the novel digital prototype show the phase variance of the detected signal of drive axis is 13 ppm in an hour while the amplitude variance is 22 ppm.

We acquired 256 averages, half with the MEGA-PRESS editing pulse centered at 1.9 ppm and half with the pulse centered at 7.6 ppm in an interleaved fashion.

In the current study, we evaluated a higher dose of NDGA (5000 ppm) in an attempt to increase blood levels to see whether these would increase female lifespan.

Methods: Twenty-two participants were exposed to CO2 at 600, 1,000, and 2,500 ppm in an office-like chamber, in six groups.

Mean concentrations of CO over a 24-hr period are also high (ranging from 2 to 50 ppm in households using solid cooking fuels) and often exceed the health-based WHO guidelines of 9 ppm (in an 8-hr period) (Bruce et al. 2000; Saksena et al. 2003).