31. For example, we can filter the received signal to obtain the desired spectral power density . 32. Estimates of wind power density are presented as wind class, ranging from 1 to 7. 33. In that case, as indeed in most power systems, power density is an important characteristic. 34. Planetary gear trains provide high power density in comparison to standard parallel axis gear trains. 35. Another commonly used unit for characterizing an RF electromagnetic field is " power density ". 36. It's " Sleep deprivation : Effect on sleep stages and EEG power density in man" 37. One mW / cm 2 is the same power density as 10 W / m 2. 38. It is, however, not trivial to compare the power density produced by different fusion fuel cycles. 39. The power density in the side lobes is generally much less than that in the main beam. 40. A summary on the progress made in the output power density of triboelectric nanogenerators within 12 months.
