Abstract: A system for introducing vibrational waves into a body of a subject to treat sleep disorders is provided. The system includes a bed frame having a first vibration contact and a second vibration contact. The first vibration contact is in mechanical communication with a first location of the body of the subject, and the second vibration contact is in mechanical communication with a second location of the body of the subject. A first vibration source is connected to the first vibration contact and configured to cause a first vibration of the first vibration contact. A second vibration source is connected to the second vibration contact and configured to cause a second vibration of the second vibration contact. The location or orientation of the first vibration contact and the second vibration contact are configured such that the first vibration combines with the second vibration to generate a super-imposed vibration.

Abstract: A system for introducing vibrational waves into a body of a subject to treat sleep disorders is provided. The system includes a bed frame having a first vibration contact and a second vibration contact. The first vibration contact is in mechanical communication with a first location of the body of the subject, and the second vibration contact is in mechanical communication with a second location of the body of the subject. A first vibration source is connected to the first vibration contact and configured to cause a first vibration of the first vibration contact. A second vibration source is connected to the second vibration contact and configured to cause a second vibration of the second vibration contact. The location or orientation of the first vibration contact and the second vibration contact are configured such that the first vibration combines with the second vibration to generate a super-imposed vibration.

Abstract: A non invasive method and apparatus is provided to measure the mass flow rate of a multi-phase fluid. An accelerometer is attached to a pipe carrying a multi-phase fluid. Flow related measurements in pipes are sensitive to random velocity fluctuations whose magnitude is proportional to the mean mass flow rate. An analysis of the signal produced by the accelerometer shows a relationship between the mass flow of a fluid and the noise component of the signal of an accelerometer. The noise signal, as defined by the standard deviation of the accelerometer signal allows the method and apparatus of the present invention to non-intrusively measure the mass flow rate of a multi-phase fluid.