41. Phase noise has been optimized by raising the resonator s natural frequencies ( f ) and quality factors ( Q ). 42. Then apply a nonlinear inversion algorithm to find the elastic constants from the measured natural frequencies ( the inverse problem ). 43. Free vibrations of an elastic body are called " natural vibrations " and occur at a frequency called the natural frequency . 44. Resonance is the tendency of a system to oscillate at larger amplitudes at certain frequencies, known as the system's natural frequencies . 45. So far, the investigation had been on the natural frequency of transient oscillation of a resonant circuit resulting from a sudden stimulus. 46. Evolutionarily, this proportionality between the tuning of the auditory system and the natural frequencies within the resting bat s calls is logical. 47. While resonance can be achieved at the natural frequency , it can also be achieved at several other modes such as flexural modes. 48. The steel springs are tuned to optimize the natural frequency of a system and engine oil is used to reduce torsional vibrations. 49. By setting the tube in motion and measuring the natural frequency , the mass of the fluid contained in the tube can be deduced. 50. The dynamic response of a structure to dynamic loads ( the natural frequency of a structure ) is also dependent on its stiffness.
