Abstract: A putting practice aid includes a light source to provide a virtual golf hole putting target and a detector to detect a golf ball with respect to the virtual golf hole.

Abstract: Disclosed are a process and apparatus for selective catalytic reduction of NOx. The process is enabled by passing a heat exchanger section, such as an economizer, of the boiler in advance of an SCR unit at low load conditions to enable NOx reduction even at low loads using urea instead of ammonia. In a preferred form, under high load conditions, the bypass can be almost fully closed and the economizer can be operated normally without excessively cooling the combustion gases, using only a portion of bypassed gases which are hot enough to decompose the urea into its active components including ammonia.

Abstract: A fragrance product is disclosed including a container containing liquid fragrance and a dispenser assembly for dispensing the liquid fragrance including a transport assembly and a tube connected to the transport assembly and extending into the liquid fragrance. The tube and the liquid fragrance each have a refractive index, and the difference between the refractive index of the tube and the liquid fragrance is not greater than about 0.04.

Abstract: A fragrance product is disclosed including a container containing liquid fragrance and a dispenser assembly for dispensing the liquid fragrance including a transport assembly and a tube connected to the transport assembly and extending into the liquid fragrance. The tube and the liquid fragrance each have a refractive index, and the difference between the refractive index of the tube and the liquid fragrance is not greater than about 0.04.

Abstract: Disclosed herein is an electrolysis cell system comprising a cell, a water source disposed in fluid communication with the cell, an electrical source disposed in electrical communication with the cell, and a cascade section disposed in fluid communication with the cell. The cascade section comprises a piping network configured to distribute fluid to a first storage zone, the first storage zone being in fluid communication with a second storage zone.

Abstract: Disclosed herein is a hydrogen gas fueling system comprising at least two hydrogen gas storage zones disposed in fluid communication with the compressor, and a hydrogen gas dispensing section disposed in fluid communication with the cascade section. The method for storing and dispensing hydrogen comprises: compressing the hydrogen gas in a compressor, passing the compressed hydrogen gas to a cascade system comprising at least two zones in fluid communication with the compressor via an inlet valve, controlling the inlet valve based upon a first sensed system parameter, dispensing the hydrogen gas from the cascade section through an outlet valve, and controlling the outlet valve based upon a second sensed system parameter. When a zone pressure in a first zone from which the hydrogen gas is being dispensed decreases to below a desired dispensing pressure, dispensing can be ceased from the first zone and commenced from a second zone.

Abstract: In one embodiment, the method of dispensing hydrogen gas comprises: selecting a hydrogen gas pressure using a pressure selector disposed in operable communication with a hydrogen gas output port, dispensing hydrogen gas at the selected hydrogen gas pressure, ceasing a flow of hydrogen gas to the vessel, and removing the nozzle from fluid communication with the vessel. The nozzle is in fluid communication with a hose and the hydrogen gas output port to form a first outlet disposed in mechanical connection with a mobile platform. In yet another embodiment, the method of dispensing hydrogen gas comprises: producing the hydrogen gas in an electrolysis cell system, activating a hydrogen dispenser, dispensing the hydrogen gas to a vessel, and ceasing a flow of the hydrogen gas to the vessel. The hydrogen dispenser and the electrolysis cell system are on a mobile platform.

Abstract: Disclosed herein is a cascade system comprising a first zone disposed in fluid communication with a compressor configured to receive a fluid stream from a hydrogen gas source, and a second zone disposed in fluid communication with the compressor and with the first zone. The fluid communication of the first zone being such that the fluid stream is receivable from the compressor in response to a first control signal transmitted to a first controllable valve at the first zone. The fluid communication of the second zone being such that a fluid stream is receivable from the compressor and from the first zone in response to a second control signal transmitted to a second controllable valve at the second zone.

Abstract: A putting practice aid includes a light source to provide a virtual golf hole putting target and a detector to detect a golf ball with respect to the virtual golf hole.

Abstract: A preferred apparatus arrangement utilizes the enthalpy of the flue gas, which can be supplemented if need be, to convert urea (30) into ammonia for SCR. Urea (30), which decomposes at temperatures above 140.degree. C., is injected (32) into a flue gas stream split off (28) after a heat exchanger (22), such as a primary superheater or an economizer. Ideally, the side stream would gasify the urea without need for further heating; but, when heat is required it is far less than would be needed to heat either the entire effluent (23) or the urea (30). This side stream, typically less than 3% of the flue gas, provides the required temperature and residence time for complete decomposition of urea (30). A cyclonic separator can be used to remove particulates and completely mix the reagent and flue gas. This stream can then be directed to an injection grid (37) ahead of SCR using a blower (36).

Abstract: A pre-fiber composition is disclosed herein that includes: a) a first fiber constituent having a first melting point; b) a second fiber constituent having a second melting point; and c) a gelling agent that solvates at least one of the first fiber constituent or the second fiber constituent, wherein the gelling agent significantly reduces co-polymerization of either of the constituents in the composition. A fiber is also disclosed herein that includes: a) at least two amide-based polymers, each having a melting point, wherein the melting point of one amide-based polymer is dissimilar to the melting point of a second amide-based polymer; and b) a gelling agent that is compatible with at least one of the amide-based polymers, wherein the fiber comprises two differentiatable melting points that are substantially similar to the melting points of each of the amide-based polymers.

Abstract: An insertion tool for a C-shaped bone spinal wedge shaped intervertebral implant comprises an outer shank with a hollow core in which is placed a shaft with a threaded stud which passes through a bore in the shank at an implant insertion end of the shank. A flat extension member defines a plane and extends from the shank overlying the stud, the stud for receiving a threaded bore of the spinal implant. The shaft has a knob distal the stud for rotatably attaching the stud to the implant. The extension member abuts the implant at mating flat surfaces which are spaced by a medial recess formed by a portion of the medullary canal of a long bone. A cap slides over the shank at an end opposite the extension member to capture the shaft in the shank core. A guide rod is attached to a collar on the shank normal to the plane of the extension member to assist the surgeon in orienting the implant to the disc space orientation during insertion of the implant.

Abstract: There is provided a combined two-part intervertebral implant (10) configured to restore the spacing between adjacent vertebrae. The implant (10) generally includes a spacer ring (12) having upper and lower vertebral engaging surfaces and a bore for receipt of a locking element (14). The implant (10) further includes a locking element (14) which is engageable within the spacer ring (12) and has a diameter or height greater than the thickness of the spacer ring. In one embodiment, the spacer ring (12) may be formed as a C-shaped element (16). In an alternative embodiment, the spacer ring may be formed as an intact ring (42) having a side bore (44) for receipt of the locking element. One or both parts of the implant (10) may be partially or wholly surface demineralized to provide a flexible surface on implant. A method of using the spacer ring (12) and locking element (14) to secure the assembled implant between adjacent vertebrae is also disclosed.

Abstract: An insertion tool for a C-shaped bone spinal wedge shaped intervertebral implant comprises an outer shank with a hollow core in which is placed a shaft with a threaded stud which passes through a bore in the shank at an implant insertion end of the shank. A flat extension member defines a plane and extends from the shank overlying the stud, the stud for receiving a threaded bore of the spinal implant. The shaft has a knob distal the stud for rotatably attaching the stud to the implant. The extension member abuts the implant at mating flat surfaces which are spaced by a medial recess formed by a portion of the medullary canal of a long bone. A cap slides over the shank at an end opposite the extension member to capture the shaft in the shank core. A guide rod is attached to a collar on the shank normal to the plane of the extension member to assist the surgeon in orienting the implant to the disc space orientation during insertion of the implant.

Abstract: An intervertebral implant having a composite wedge/dowel configuration is provided. The intervertebral implant includes a central body portion and a pair of radially extending wings. The radially extending wings can be tapered from a first end of the implant to the second end of the implant along an axis parallel to the longitudinal axis of the central body portion. Alternately, the radially extending wings can be tapered along an axis transverse to the longitudinal axis of the cylindrical body portion or along any other axis between parallel and transverse to the longitudinal axis. A throughbore or plurality of throughbores extend from a top surface of the implant through the implant to a bottom surface of the implant. The implant may be formed from a cortical ring cut from the diaphysis of a long bone by milling the top and bottom surfaces of the cortical ring to form the substantially central body portion and the tapered radially extending wings.

Abstract: A method is disclosed for establishing trusted communications with associations for communications between users on an Internet Protocol based computer network. The method entails the first user's SNIU determining the Internet Protocol (IP) address of a second user's SNIU on the computer network through the use of custom and ICMP Echo Request and Reply messages. The user's SNIUs exchange security related information needed to complete the establishment of a trusted association. The trusted association is maintained during all communications between the first user and the second user.

Abstract: A light-weight yet sufficiently dense object made of reasonably rigid material for throwing and catching, having an elongated main body section (12) dividing congruent angled sections (20a & 20b) on either side. Each angled section containing a plurality of angles, and both section being mirror images of each other. The object (15) being of suitable size so as to be thrown and caught easily by an average human.

Abstract: A method is disclosed for establishing trusted communications with associations for communications between users on an Internet Protocol based computer network. The method entails the first user determining the Internet Protocol (IP) address of a second user on the computer network through the use of Address Resolution Protocol (ARP) and Reverse Address Resolution Protocol (RARP). The first user then determining the accessability of the second user on the computer network. The users exchange security related information needed to complete the establishment of a trusted association. The trusted association is maintained during all communications between the first user and the second user.

Abstract: A sealing cartridge for rotating shafts is described, comprising a housing, an inwardly disposed compressed mechanical packing, and an outwardly disposed radial pressure lip seal. The two types of sealing elements cooperate to permit adequate lubrication of the shaft while yet obtaining complete containment of the functional fluid.