The bluff body attaches to an elastic mount and is capable of generate vortex shedding when the elastic mount orients the bluff body in a flow-line traverse to a fluid flow and vibrates in response to the vortex shedding. A harvester is located within the bluff body and is capable of generating power above a specified threshold in response to the vibration.

The bluff body attaches to an elastic mount and is capable of generate vortex shedding when the elastic mount orients the bluff body in a flow-line traverse to a fluid flow and vibrates in response to the vortex shedding. A harvester is located within the bluff body and is capable of generating power above a specified threshold in response to the vibration.

The bluff body attaches to an elastic mount and is capable of generate vortex shedding when the elastic mount orients the bluff body in a flow-line traverse to a fluid flow and vibrates in response to the vortex shedding. A harvester is located within the bluff body and is capable of generating power above a specified threshold in response to the vibration.

The bluff body attaches to an elastic mount and is capable of generate vortex shedding when the elastic mount orients the bluff body in a flow-line traverse to a fluid flow and vibrates in response to the vortex shedding. A harvester is located within the bluff body and is capable of generating power above a specified threshold in response to the vibration.

A piezoelectric power apparatus wherein waterproofed piezoelectric material is located within a water-filled container. Water pressure within the container is made to rapidly vary either by a cam operated piston rotated by a water turbine or a motor operated ball valve. A flowing water current is made to operate the ball valve which interrupts periodically the water flow, or the continuous water flow is made to operate the piston through the agency of a water turbine-operated cam.

A system has a database that stores a plurality of audio/visual clips. Further, the system has a memory device that has a buffer with a threshold quantity of memory blocks. In addition, the system has a processor that receives the plurality of audio/visual clips in an ordered sequence for a virtual sports game. The processor also writes one or more frames of a first audio/visual clip to the buffer. Further, the processor allocates the threshold quantity of memory blocks such that the processing speed of writing one or more frames of a second audio/visual clip to the buffer is faster than a broadcast frame rate for broadcasting the first audio/visual clip. In addition, the processor writes the one or more frames of the second audio/visual clip to the allocated threshold quantity of memory blocks of the buffer.

Disclosed in the present invention is a dual-rotor microfluidic energy capturing and power generating device based on a piezoelectric effect. An inner ring of blades and an outer ring of blades are coaxially and movably sleeved, and rotate relatively. Sheet-like magnetic piezoelectric components and steel magnets are provided in an annular gap between the inner ring of blades and the outer ring of blades. Magnetic piezoelectric components are connected to an inner peripheral surface of the outer ring of blades, the magnetic piezoelectric components are magnetically repulsive to the steel magnets, and the outer sides of the magnetic piezoelectric components are axially arranged. The inner ring of blades and the outer ring of blades rotate relatively to drive the magnetic piezoelectric components and the steel magnets to rotate relatively, and further drive the magnetic piezoelectric components to oscillate to generate mechanical energy which is then converted into electric energy.

Disclosed are various embodiments of systems, devices and methods for generating electricity, transforming voltages and generating motion using one or more piezoelectric elements operably coupled to one or more non-piezoelectric resonating elements. In one embodiment, a non-piezoelectric resonating element is configured to oscillate and dissipate mechanical energy into a piezoelectric element, which converts a portion of such mechanical energy into electricity and therefore acts as a generator. In another embodiment, a piezoelectric element is configured to drive one or more mechanical elements operably coupled to the one or more non-piezoelectric resonating elements, and therefore acts as a motor. In still another embodiment, a piezoelectric element is operably coupled to a non-piezoelectric resonating element to form an electrical transformer. The mechanical properties of the non-piezoelectric resonating elements are typically selected to permit relatively high permissible stress and strain in comparison to the corresponding piezoelectric elements to which coupled or attached.

Disclosed are devices which harness and manipulate a quantum effect to apply a cyclic, varying pressure to an integral piezoelectric element or elements to produce an electrical current. These devices utilize the Casimir Effect to efficiently produce more power than they consume during operation and can be used in place of most other electrical power sources, such as chemical batteries, in most contemporary applications and open the door to novel applications which may benefit from their ability to produce power without a need to recharge and over their lifespan.

A power generator 100 includes a power generating unit 10 and a supporting member 20 for supporting the power generating unit 10. The power generating unit 10 constitutes a two-degree-freedom vibration system including a first vibration system having a coil assembly 40 and a first spring portion 64 for coupling the coil assembly 40 with a housing 20 and a second vibration system having a magnet assembly 30 and a second spring portion 65 for coupling the magnet assembly 30 with the coil assembly 40. The power generating unit 10 is configured so that each of a first natural frequency .sub.1 of the first vibration system and a second natural frequency .sub.2 of the second vibration system is in the range of 14 to 42 Hz.