Abstract: This invention relates to a parametric source Doppler acoustic wind profiler for measuring atmospheric wind conditions. It includes a parametric acoustic source excited by a transmitter generating a pair of primary frequencies and radiates an intermodulation difference frequency. Echoes of the difference frequency are produced by wind induced scatter at the difference frequency which is significantly lower than the transmitted primary frequencies and detected by a single microphone or an array of microphones.

Abstract: This patent is directed to a system which uses NMR techniques for three dimensional imaging of living organisms and in which the static and gradient fields not be uniform. It incorporates an image data processing scheme that permits single static and gradient magnetic field sources to image two different objects or patients concurrently through the use of a data processing technique which sorts and routes imaging data from separate sets of sensing devices in response to two separate control and display means to provide control inputs for the common magnetic field sources while controlling data extraction from separate, independent image data receiving probe systems. Response of the two probe systems to the common magnetic field sources is achieved through non-uniform field analysis techniques of the data received through the individual probe systems.

Abstract: A pump module adapted to be mounted on the lower end of a compliant pipe extending vertically in a sea for pumping cold water to the upper end thereof to an energy conversion device having means for eliminating torques created by the pump, means for maintaining the pump in axial alignment with the compliant pipe and means for reducing the axial stress of the pump on the compliant pipe.

Abstract: A compliant underwater pipe system having a compliant pipe whose buoyancy is readily controlled extending vertically in a sea, having a pump module mounted at the bottom end of the compliant pipe and an energy conversion device at the top end thereof whereby cold water is pumped from the bottom of the sea to the energy conversion device that utilizes the difference in temperature of the water to produce energy in a useable form.