Abstract: A system for producing an ultrasound image comprises a scan head having a transducer capable of generating ultrasound energy at a frequency of at least 20 megahertz (MHz), and a processor for receiving ultrasound energy and for generating an ultrasound image at a frame rate of at least 15 frames per second (fps).

Abstract: A system for producing an ultrasound image comprises a scan head having a transducer capable of generating ultrasound energy at a frequency of at least 20 megahertz (MHz), and a processor for receiving ultrasound energy and for generating an ultrasound image at a frame rate of at least 15 frames per second (fps).

Abstract: A system for producing an ultrasound image comprises a scan head having a transducer capable of generating ultrasound energy at a frequency of at least 20 megahertz (MHz), and a processor for receiving ultrasound energy and for generating an ultrasound image at a frame rate of at least 15 frames per second (fps).

Abstract: A system for producing an ultrasound image comprises a scan head having a transducer capable of generating ultrasound energy at a frequency of at least 20 megahertz (MHz), and a processor for receiving ultrasound energy and for generating an ultrasound image at a frame rate of at least 15 frames per second (fps).

Abstract: A system for producing an ultrasound image comprises a scan head having a transducer capable of generating ultrasound energy at a frequency of at least 20 megahertz (MHz), and a processor for receiving ultrasound energy and for generating an ultrasound image at a frame rate of at least 15 frames per second (fps).

Abstract: A Stirling engine machine comprises a plurality of opposing pairs of cylinder modules. Each cylinder module comprises a first end, a second end, and a piston moveable along a longitudinal axis extending between the first and second ends. The opposing pairs of cylinder modules have axes that are substantially aligned with each other such that movement of the pistons of opposing pairs substantially dynamically cancel. The opposing pairs of cylinder modules have first ends that are in proximity to each other.

Abstract: A system for producing an ultrasound image comprises a scan head having a transducer capable of generating ultrasound energy at a frequency of at least 20 megahertz (MHz), and a processor for receiving ultrasound energy and for generating an ultrasound image at a frame rate of at least 15 frames per second (fps).

Abstract: A drive mechanism for a Stirling engine includes a piston rod, a displacer rod, a first crankshaft and a second crankshaft. The piston rod has a first end and a second end. The first end of the piston rod is configured to be coupled to a power piston of the Stirling engine. The displacer rod has a first end and a second end, the first end being configured to be coupled to a displacer piston of the Stirling engine. A rhombic drive mechanism comprises a plurality of pivotally connected connection members. The rhombic drive mechanism is configured to convert the linear movement of the piston rod to rotational movement of the first and second crankshaft and to convert linear movement of the piston rod to movement of the displacer rod. A guide is configured to substantially prevent lateral motion while allowing axial movement of at least one of the displacer rod and the piston rod.

Abstract: A system for producing an ultrasound image comprises a scan head having a transducer capable of generating ultrasound energy at a frequency of at least 20 megahertz (MHz), and a processor for receiving ultrasound energy and for generating an ultrasound image at a frame rate of at least 15 frames per second (fps).

Abstract: Voice message based administration is a method that allows the directed and controlled collection and presentation of numeric and symbolic information between a group leader and a population of group members, thus allowing many previously impossible administration and management functions to be performed, including those commonly associated with Group Decision-Making Support Systems. The preferred embodiment is implemented as an extension to a Voice Message System. A group leader subscriber account is defined by the Voice Message system administrator. This account type has certain privileges not available to other subscribers. The group leader subscriber defines lists of other subscribers who become group members, the group leader also controls the access to and the content of data tables. The group leader initiates a "Session" on a topic with the group members. A variety of Session types are supported. Each session is made up of a set of items that contain a voice description and numeric or symbolic data.