What does infectivity mean?
: the ability to produce or transmit infection : the quality or state of being infective The onset of cough on the second day of illness in this patient, followed by clinical evidence of pneumonia four days later, raised the question of his infectivity during the four days before hospitalization.—
What is force transmissibility in vibration?
In the single degree of freedom system the force transmissibility is defined as the ratio between the magnitude of the transmitted force (ground reaction) and the applied force. This concept has been generalized for MDOF systems considering relations between two sets of dynamic loads [24].
What is the conditions of resonance?
Resonance describes the phenomenon of increased amplitude that occurs when the frequency of a periodically applied force (or a Fourier component of it) is equal or close to a natural frequency of the system on which it acts.
What are the basic elements of vibratory system?
Three major elements comprise the vibratory systems; these are: – Inertia element (Mass, kg ) – Elastic element (Spring, N/m) and – Energy-dissipative element (Damper, Ns/m) The mass oscillates or vibrates while the spring stores energy temporarily during vibration and damper consumes or dissipates the energy.
What is vibration answer in one sentence?
Vibration means quickly moving back and forth (or up and down) about a point of equilibrium. The vibration may be periodic (having a pattern) or random. Something that is vibrating may shake at the same time. If it vibrates in a regular way, it may produce a musical note because it can make the air vibrate.
How many calories does a vibration machine burn in 10 minutes?
47 calories
Who should not use a vibration machine?
Persons with cardiovascular conditions Whole body vibration may be unsafe for those who have had a stroke or who have heart disease. Also anyone with a blood clotting disorder, deep vein thrombosis. If you have a pacemaker, you should get your physiciansapproval before using one of these machines.