Hence Nature is not a teleological system, natural phenomena do not have purposes, and all causation between modes is efficient, none final.
Experimental modal tests, performed on laboratory cables, provide corroborating measurements of system natural frequencies.
The system response frequency in a streaming flow was always found to be less than the system natural frequency.
The system response depends heavily on the relation between the system natural frequencies and the motor rotational speed.
It is found that an increase of the delaminated region ratio increases the percentage deviation in the system natural frequencies.
Overview of the stratification and circulation of Earth's ocean and atmosphere and their governing processes; ocean-atmosphere interaction; resultant climate system; natural and anthropogenic forced climate change.
In this novel system, natural gas is cleaned and fed into a small compressor, where it mixes with oxygen-enriched air.
To design an input-shaping controller, estimates of the system natural frequency and damping ratio are required.
The theoretical and experimental findings show that resonance occurs in the system when the weld passage (impulse) period is an integer multiple of any system natural period.
Account is taken of the interface characteristics responsible for the changes of the system natural frequencies and the modification of the damping during frictional contact.
General characteristics of the dynamic coupling between the structure and the acoustic cavity are discussed based on the system natural frequencies and mode shapes.
