21. One of the benefits of SMAs is that they have very high power densities , 22. The batteries could have high power density and potential of 4.7 V per cell. 23. To achieve even higher power densities , halogen lamps were used. 24. Silicon-based power transistors are reaching limits of operating frequency, breakdown voltage, and power density . 25. These amplifiers were able to deliver higher power density in a more compact amplifier enclosure. 26. Multi-drive systems become easy to implement due to the large power density of electric motors. 27. The electrode layers were unusually thick ( > 2 mm ), which reduces power density . 28. Power density was much greater than a typical battery.29. Some facilities have power densities more than 100 times that of a typical office building. 30. The polymer exhibits the greatest power density for an organic material under practical measurement conditions.
