Abstract: Described herein is environmental sensors, sensor units, sensor systems and/or sensing methods. In particular, an agricultural or horticultural environment multi-sensor unit comprising a plurality of environmental sensors, including at least: an incident light sensor, a temperature sensor, a carbon dioxide sensor and a relative humidity sensor. The sensor unit may also comprise a wireless communication interface, the multi-sensor unit being configured to transmit data from the environmental sensors via the wireless communications interface.

Abstract: In some examples, a system including a gas turbine engine, the engine including a high-pressure (HP) shaft; HP compressor; HP turbine, second shaft; second compressor; second turbine, the second turbine being coupled to the second compressor via the second shaft (e.g., LP shaft); and a generator coupled to the LP shaft. The generator is configured to generate electrical power from rotation of the LP shaft, and increase electrical power generated by the generator to increase a torque applied to the LP shaft by the generator, e.g., in combination with reduction in engine thrust, or in response to the detection of a stall and/or surge of the engine. The increase in torque applied to the second shaft is configured to increase a rate at which a rotational speed of the second shaft decreases, e.g., in combination with the reduction in engine thrust or during the stall/surge of the engine.

Abstract: A turbine engine includes an engine core extending along an engine centerline and includes a compressor section, a combustor, and a turbine section in serial flow arrangement. A set of blades are circumferentially arranged in the turbine section and the compressor section. A set of dovetails mounts the set of blades to a disk, rotated about the engine centerline. Each dovetail can include a set of lobes defining complementary recesses, collectively defining a neck for mounting to the disk.

Abstract: In some examples, a gas turbine engine including a high-pressure (HP) spool assembly including a HP shaft, a HP compressor and HP turbine; a lower pressure (LP) spool assembly including a LP shaft and LP turbine; a motor-generator coupled to the LP shaft; and a controller. The controller is configured to control the motor-generator to operate in a motor mode to apply torque the LP shaft during a starting of the HP spool assembly, and control the motor-generator to operate in a generator mode for a least a period of time following the starting of the HP spool assembly.

Abstract: A reel spooling device includes a reel adapted to store a spooled length of hose or conduit and a lead screw mechanically coupled to the reel and configured to rotate about a longitudinal axis when the reel rotates. A guide cartridge is seated on the lead screw and configured to reciprocate between opposing first and second ends of said lead screw. The guide cartridge includes a first pair of rollers which are spaced relative to each other and rotatable about first and second axes, defining a first restriction. A second pair of rollers are spaced relative to each other and rotatable about third and fourth axes, defining a second restriction. The first, second, third and fourth axes are each generally parallel, and the first and second restrictions are separated relative to a longitudinal direction in which the hose or conduit passes through the guide cartridge.

Abstract: A clamp assembly is provided with a band having a length sized to wrap about a joint. A plurality of retainer segments is attached to the band to engage a peripheral flange of a pair of tube ends at the joint. A first threaded fastener is connected to the band at a first location. A second threaded fastener is sized to engage the band at a second location to extend to the first threaded fastener to fasten to the first threaded fastener upon rotation of the second threaded fastener to tighten the band and the plurality of retainer segments to clamp the joint.

Abstract: A process for forming an inlay in a cured concrete structure includes forming a pocket in a preexisting concrete structure, filling the pocket with a cementitious mixture, curing the mixture in the pocket to form a cured mixture, and polishing the cured mixture in the pocket. The cementitious mixture includes a Portland cement, an admixture comprising at least one of a strengthener, a plasticizer, or an accelerator, and an aggregate.

Abstract: Described herein is environmental sensors, sensor units, sensor systems and/or sensing methods. In particular, an agricultural or horticultural environment multi-sensor unit comprising a plurality of environmental sensors, including at least: an incident light sensor, a temperature sensor, a carbon dioxide sensor and a relative humidity sensor. The sensor unit may also comprise a wireless communication interface, the multi-sensor unit being configured to transmit data from the environmental sensors via the wireless communications interface.

Abstract: A rotating machine including a thrust bearing configured to receive an axial thrust exerted by a rotor. The thrust bearing may be configured to transfer the axial thrust from the rotor to a housing or other structural component of the rotating machine using a plurality of ball bearings. The rotating machine includes a magnetic apparatus configured to cause the rotating machine to exert an axial force on the thrust bearing in the direction of the axial thrust of the rotor, such that the magnetic apparatus loads the ball bearings in the direction of the axial thrust. The magnetic apparatus may be configured to generate a magnetic field causing a first magnetic component of the magnetic apparatus to repel or attract a second magnetic component of the apparatus. The first magnetic component may be configured to rotate relative to the second magnetic component.

Abstract: Described herein is environmental sensors, sensor units, sensor systems and/or sensing methods. In particular, an agricultural or horticultural environment multi-sensor unit comprising a plurality of environmental sensors, including at least: an incident light sensor, a temperature sensor, a carbon dioxide sensor and a relative humidity sensor. The sensor unit may also comprise a wireless communication interface, the multi-sensor unit being configured to transmit data from the environmental sensors via the wireless communications interface.

Abstract: The disclosure describes an apparatus for sealing a rotating machine, such as an electric machine or gas turbine engine. The apparatus includes a brush seal. The brush seal includes a plurality of first filaments and a plurality of electrically conductive filaments. The first filaments are configured to seal a lubricant within a bearing chamber or sump of the rotating machine. The plurality of electrically conductive filaments is configured to contact a shaft of the rotating machine and discharge a shaft voltage-induced current from the shaft to an external ground of the rotating machine.

Abstract: In some examples, a system including a gas turbine engine, the engine including a high-pressure (HP) shaft; HP compressor; HP turbine, second shaft; second compressor; second turbine, the second turbine being coupled to the second compressor via the second shaft (e.g., LP shaft); and a generator coupled to the LP shaft. The generator is configured to generate electrical power from rotation of the LP shaft, and increase electrical power generated by the generator to increase a torque applied to the LP shaft by the generator, e.g., in combination with reduction in engine thrust, or in response to the detection of a stall and/or surge of the engine. The increase in torque applied to the second shaft is configured to increase a rate at which a rotational speed of the second shaft decreases, e.g., in combination with the reduction in engine thrust or during the stall/surge of the engine.

Abstract: In some examples, a system including a gas turbine engine, the engine including a high-pressure (HP) shaft; HP compressor; HP turbine, second shaft; second compressor; second turbine, the second turbine being coupled to the second compressor via the second shaft (e.g., LP shaft); and a generator coupled to the LP shaft. The generator is configured to generate electrical power from rotation of the LP shaft, and increase electrical power generated by the generator to increase a torque applied to the LP shaft by the generator, e.g., in combination with reduction in engine thrust, or in response to the detection of a stall and/or surge of the engine. The increase in torque applied to the second shaft is configured to increase a rate at which a rotational speed of the second shaft decreases, e.g., in combination with the reduction in engine thrust or during the stall/surge of the engine.

Abstract: The present invention relates to a fluid applicator apparatus and methods of using the apparatus. In particular, the present invention relates to an apparatus for storing and dispensing solutions (e.g., fluid solutions of any kind) (e.g., liquid medicaments and/or sterilization solutions) to a surface of a subject.

Abstract: A wire rope for face shovels or draglines, comprising: a core, said core is made from a plurality of core strands a plurality of outer strands laid on said core, a plurality of separator strands located in the interstices between said core strands and said outer strands, a plastic jacket around said plurality of outer strands, said plurality of separator strands and said core strands, wherein said plurality of separator strands extend from said core strands and in-between each pair of said plurality of outer strands so as to produce and maintain gaps between said pair of said plurality of outer strands; wherein said core strands are compacted, and the gap between said core strands is less than 0.4% of the diameter of the core strand.

Abstract: Described herein is environmental sensors, sensor units, sensor systems and/or sensing methods. In particular, an agricultural or horticultural environment multi-sensor unit comprising a plurality of environmental sensors, including at least: an incident light sensor, a temperature sensor, a carbon dioxide sensor and a relative humidity sensor. The sensor unit may also comprise a wireless communication interface, the multi-sensor unit being configured to transmit data from the environmental sensors via the wireless communications interface.

Abstract: In some examples, a gas turbine engine including a high-pressure (HP) spool assembly including a HP shaft, a HP compressor and HP turbine; a lower pressure (LP) spool assembly including a LP shaft and LP turbine; a motor-generator coupled to the LP shaft; and a controller. The controller is configured to control the motor-generator to operate in a motor mode to apply torque the LP shaft during a starting of the HP spool assembly, and control the motor-generator to operate in a generator mode for a least a period of time following the starting of the HP spool assembly.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for learning template representation libraries. In one aspect, a method includes obtaining an image depicting a physical environment, where the environment includes a given physical object. When possible, a position of the given object in the environment is inferred based on a template representation library using template matching techniques. In response to determining that the position of the given object in the environment cannot be inferred based on the template representation library using template matching techniques, the template representation library is automatically augmented with new template representations.

Abstract: An interface for an educational tool on an electronic device is described. The interface comprises a main menu to display at least an icon for the educational tool. The main menu appears on a display screen of the electronic device. The interface also comprises a summary menu to list a subset of at least one function of the educational tool. The summary menu is accessed directly from the main menu when a user selects the icon for the educational tool. The interface further comprises an exhibitory window to display a rhyming riddle function of the educational tool selected by the user from the subset listed on the summary menu. The rhyming riddle function presents the user with a rhyming riddle to be solved.

Abstract: An interface for an educational tool on an electronic device is described. The interface comprises a main menu to display at least an icon for the educational tool. The main menu appears on a display screen of the electronic device. The interface also comprises a summary menu to list a subset of at least one function of the educational tool. The summary menu is accessed directly from the main menu when a user selects the icon for the educational tool. The interface further comprises an exhibitory window to display a rhyming riddle function of the educational tool selected by the user from the subset listed on the summary menu. The rhyming riddle function presents the user with a rhyming riddle to be solved.