Abstract: Described are substituted imidazo[1,2-a]pyrazine compounds, which are coelenterazine analogues, kits comprising the analogues, and methods of using the compounds for the detection of luminescence in luciferase-based assays. Also described are methods from making the compounds, such as a method using aminopyrazine acetophosphonates as synthesis intermediates.

Abstract: An adjustable caster assembly includes a body having a top surface and a base, and an opening within the base. A wheel is connected to the body, where the wheel is configured to extend beyond the base of the body to engage a supporting surface. A foot is positioned within the opening in the base and configured to move between an expanded position and a contracted position. The foot may be actuated by an actuation shaft that engages a gear. The actuation shaft may be movable between an engaged position and a disengaged position.

Abstract: An adjustable caster assembly includes a body having a top surface and a base, and an opening within the base. A wheel is connected to the body, where the wheel is configured to extend beyond the base of the body to engage a supporting surface. A foot is positioned within the opening in the base and configured to move between an expanded position and a contracted position. The foot may be actuated by an actuation shaft that engages a gear. The actuation shaft may be movable between an engaged position and a disengaged position.

Abstract: A processing system to connectorize optical cables includes processing stations on a table arrangement; and a track arrangement. The processing stations include: a strip-clean-cleave station that creates prepared ends of cable fibers and stub fibers; a splice station that fusion splices the prepared ends of cable and stub fibers; an overmold station that injection molds hubs around the splices; a UV cure station and a heat cure station for the injection molding; and a connector assembly station at which an optical connector is assembled at an end of each optical cable.

Abstract: A processing system to connectorize optical cables includes processing stations on a table arrangement; and a track arrangement. The processing stations include: a strip-clean-cleave station that creates prepared ends of cable fibers and stub fibers; a splice station that fusion splices the prepared ends of cable and stub fibers; an overmold station that injection molds hubs around the splices; a UV cure station and a heat cure station for the injection molding; and a connector assembly station at which an optical connector is assembled at an end of each optical cable.

Abstract: A portable apparatus to electromechanically emboss Braille patterns includes a user input, such as a six-key with spacebar keyboard, actuators that drive embossing pins via cam shafts coupled to servo or stepper motors, a tape advancing mechanism, and a cutting and scoring assembly. Three actuators, such as servo or stepper motors, may each be coupled to one shaft on which two or more cams drive two or more embossing pins for each row of two dots in the six dot Braille cell.

Abstract: The present application provides a flexible combustor fuel nozzle. The flexible combustor fuel nozzle may include a main passage in communication with a source of natural gas and a source of low BTU fuel, a secondary passage surrounding the main passage and in communication with the source of low BTU fuel and a source of purge air, and a tertiary passage surrounding the secondary passage and in communication with the source of low BTU fuel, the source of purge air, and a source of diluent.

Abstract: The present application provides a flexible combustor fuel nozzle. The flexible combustor fuel nozzle may include a main passage in communication with a source of natural gas and a source of low BTU fuel, a secondary passage surrounding the main passage and in communication with the source of low BTU fuel and a source of purge air, and a tertiary passage surrounding the secondary passage and in communication with the source of low BTU fuel, the source of purge air, and a source of diluent.

Abstract: A fuel nozzle for a turbine engine is configured to deliver a large volume of a fuel which has a relatively low amount of energy per unit volume. The fuel nozzle includes a fuel swirler plate having fuel delivery apertures which are angled with respect to the flat surfaces of the swirler plate. A nozzle cap covers the end of the fuel nozzle to create a swirl chamber at the outlet end. The nozzle cap may include a plurality of air inlet apertures to allow the air to enter the swirl chamber.

Abstract: A fuel nozzle for a turbine engine is configured to deliver a large volume of a fuel which has a relatively low amount of energy per unit volume. The fuel nozzle includes a fuel swirler plate having fuel delivery apertures which are angled with respect to the flat surfaces of the swirler plate. A nozzle cap covers the end of the fuel nozzle to create a swirl chamber at the outlet end. The nozzle cap may include a plurality of air inlet apertures to allow the air to enter the swirl chamber.

Abstract: A portable apparatus to electromechanically emboss Braille patterns includes a user input, such as a six-key with spacebar keyboard, actuators that drive embossing pins via cam shafts coupled to servo or stepper motors, a tape advancing mechanism, and a cutter and scoring assembly. Three actuators, such as servo or stepper motors, may each be coupled to one shaft on which two or more cams drive two or more embossing pins for each row of two dots in the six dot Braille cell.

Abstract: A method for managing prepaid accounts. A prepaid account is established for an account holder who deposits funds into the account. A virtual account number is issued for the prepaid account. The virtual account number is compatible with a standardized credit transaction system. Use of the virtual account number is limited to transactions placed over the Internet and to transactions between the prepaid account and another prepaid account. A physical credit card for the prepaid account may also be issued to the account holder. Such a credit card has a card account number which is different than the virtual account number. The card account number is also compatible with the standardized credit transaction system. The card account number may also include use limitations.