Abstract: A method of storing heat includes moving a portion of a heated fluid from at least one reactor core to at least one tank having solid media, storing heat from the portion of the heated fluid in the solid media, and transferring the stored heat from the solid media to a fluid that can be used by a power plant to generate electrical energy. A system for storing heat in a nuclear power plant includes at least one tank comprising solid media structured and arranged to store heat and an arrangement structured and arranged to pass a first fluid through the at least one tank, transfer heat from the first fluid to the solid media, store the heat in the solid media, and transfer the heat from the solid media to a second fluid. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: An apparatus, method, and system for producing hydrogen gas by mechanical scraping of a surface of an aluminum-containing material, in the presence of an aqueous medium, the apparatus including: (a) a reaction chamber having a discharge port, and adapted to sealably contain the aqueous medium; (b) an aluminum-containing workpiece having a working surface; (c) a scraping mechanism having a brush adapted to contact the working surface, the workpiece and the scraping element disposed within the chamber, the surface and the scraping element adapted to move in a relative motion, whereby, in an operating condition, the scraping element scrapes against the working surface to effect a liberation of aluminum-containing particles from the workpiece, the chamber adapted to be substantially sealed with respect to an ambient environment, up to a superatmospheric pressure threshold, and further adapted whereby, during contacting of the aqueous medium and the particles within the chamber, the hydrogen gas is evolved and sel

Abstract: A method of storing heat includes moving a portion of a heated fluid from at least one reactor core to at least one tank having solid media, storing heat from the portion of the heated fluid in the solid media, and transferring the stored heat from the solid media to a fluid that can be used by a power plant to generate electrical energy. A system for storing heat in a nuclear power plant includes at least one tank comprising solid media structured and arranged to store heat and an arrangement structured and arranged to pass a first fluid through the at least one tank, transfer heat from the first fluid to the solid media, store the heat in the solid media, and transfer the heat from the solid media to a second fluid. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A variety of fish habitat structures are provided for simulating a natural aquatic environment. A first structure is in the form of a horizonatally extending tube made from plastic mesh. A pair of concrete cinder blocks is placed in the opposite open ends of the tube to weight the tube so that it remains on the floor of the environment. The clearance between the tops of the blocks and the circumference of the tube is sufficient to allow spawning bass to enter the tube while keeping out larger predatory species of fish. A second structure is in the form of a pyramid-shaped stack of solid tubes, each of which is closed at one end and open at the other. The diameter of the tubes is selected to accommodate spawning catfish. A third structure, which simulates a brush pile, is a mesh tube, similar to the first structure, turned on one end so that its longitudinal axis extends vertically. A cinder block at the bottom end of the tube prevents it from going adrift.

Abstract: A continuous mining apparatus such as a coal milling or shearing machine includes sensors mounted on the machine frame or on the cutter bits, including an accelerometer and one or more strain gauges, for sensing vibrations and stresses exerted on the cutter bits during operation of the machine. A signal conditioning and amplification circuit provides an audio and/or visual display indicating when the cutter is moving outside of the coal seam and/or is cutting along a cleat or other joint to improve excavation rates while maintaining or lowering stress levels on the cutter bits. The display enables the machine operator to keep from penetrating the roof or floor of the coal seam and to position the cutter to take advantage of natural fracture lines in the seam. The frequency spectrum of the sensor signals is determined to distinguish vibrations caused by bit interaction with the material being cut.

Abstract: Laser irradiation means for irradiating a target, wherein a single laser light beam from a source and a mirror close to the target are used with aperture means for directing laser light to interact with the target over a broad area of the surface, and for protecting the laser light source.