Abstract: A rotor blade with a leading edge and a trailing edge is provided, wherein the rotor blade is designed and configured for being exposed to a fluid flowing substantially from the leading edge to the trailing edge, the rotor blade includes at least two sensors designed for detecting flow characteristics of the fluid and providing respective sensor signals, and the rotor blade further includes at least two actuators for producing an anti-noise signal based on a sensor signal, the sensors are arranged spanwise and the actuators are arranged chordwise at the surface of the rotor blade, and the actuators are arranged and prepared such that flow-induced edge noise of the rotor blade, which is generated by the fluid, is at least partly cancelled out by the anti-noise signal. Also provided is a method for creating such rotor blade and a related wind turbine.

Abstract: A rotor blade with a leading edge and a trailing edge is provided, wherein the rotor blade is designed and configured for being exposed to a fluid flowing substantially from the leading edge to the trailing edge, the rotor blade includes at least two sensors designed for detecting flow characteristics of the fluid and providing respective sensor signals, and the rotor blade further includes at least two actuators for producing an anti-noise signal based on a sensor signal, the sensors are arranged spanwise and the actuators are arranged chordwise at the surface of the rotor blade, and the actuators are arranged and prepared such that flow-induced edge noise of the rotor blade, which is generated by the fluid, is at least partly cancelled out by the anti-noise signal. Also provided is a method for creating such rotor blade and a related wind turbine.

Abstract: An outlet guide vane for a turbofan engine, which results in reduced noise. The outlet guide vane may comprise an aerofoil, the aerofoil comprising at least porous section, wherein the at least one channel or porous section is positioned near the leading edge of the aerofoil.

Abstract: A fan filter unit with an integrated heater system includes a housing comprising an air intake and an air outlet; a blower motor mounted within the housing and downstream of the air intake; a heater mounted within the housing and downstream of the blower motor; and an air filter mounted within the housing. In some cases, the system further includes an inner housing mounted to a top of an inside portion of the housing, the inner housing having an inner housing air outlet, where both the blower motor is mounted within the inner housing and the heater is mounted within the inner housing. In some of such cases, the air intake and the air outlet are positioned to direct an air flow vertically and the inner housing air outlet is positioned to direct an air flow horizontally.

Abstract: A method and system for facilitating interaction between users viewing same digital contents is provided. Further, the method may include a step of receiving one or more second digital content requests of the digital content. Further, the method may include a step of analyzing the first digital content request and the one or more second digital content requests. Further, the method may include a step of determining a simultaneous access of the digital content from the first user device and the one or more second user devices based on the analyzing. Further, the method may include a step of generating a notification for the simultaneous access of the digital content based on the determining. Further, the method may include a step of transmitting the notification to one or more of the first user device and the one or more second user devices.

Abstract: An outlet guide vane for a turbofan engine, which results in reduced noise. The outlet guide vane may comprise an aerofoil, the aerofoil comprising at least porous section, wherein the at least one channel or porous section is positioned near the leading edge of the aerofoil.

Abstract: A brake disc for a wheeled vehicle; said brake disc including opposing annular braking surfaces; each of said surfaces provided with an identical pattern of disparate arcuate groove segments; said groove segments arranged in groups oriented in both clockwise and anti-clockwise directions; each of said groups including, one series of at least two arcuate groove segments lying along a common are extending from proximate a hub of said braking surface to proximate the periphery of said braking surface, one inward arcuate groove segment extending from proximate said hub to a point intermediate said hub and said periphery, and one outward arcuate groove segment extending from a point intermediate said hub and said periphery to proximate said periphery.

Abstract: Disclosed herein is an event notification system (10). The system (10) comprises a receiver (14) arranged to receive event information comprising geographical region information indicative of a geographical region for each of a plurality of events and time interval information indicative of a time interval for each of the plurality of events, the receiver (14) also being arranged to receive location information indicative of a location of a wireless communication device (12) at a time.

Abstract: Disclosed are embodiments of a three-dimensional (3D) printer for building 3D objects with layer based, additive manufacturing techniques. The 3D printer can have an extrusion assembly including a hot end for heating consumable material and depositing the consumable material in layers on a printing bed. The hot end can be moved in a horizontal plane parallel the printing bed while the printing bed can be moved perpendicular to the horizontal plane to print the 3D object.

Abstract: A brake disc for a wheeled vehicle; said brake disc including opposing annular braking surfaces; each of said surfaces provided with an identical pattern of disparate arcuate groove segments; said groove segments arranged in groups oriented in both clockwise and anti-clockwise directions; each of said groups including, one series of at least two arcuate groove segments lying along a common are extending from proximate a hub of said braking surface to proximate the periphery of said braking surface, one inward arcuate groove segment extending from proximate said hub to a point intermediate said hub and said periphery, and one outward arcuate groove segment extending from a point intermediate said hub and said periphery to proximate said periphery.

Abstract: A brake disc for a wheeled vehicle; said brake disc including opposing annular braking surfaces; each of said surfaces provided with an identical pattern of disparate arcuate groove segments; said groove segments arranged in groups oriented in both clockwise and anti-clockwise directions; each of said groups including, one series of at least two arcuate groove segments lying along a common arc extending from proximate a hub of said braking surface to proximate the periphery of said braking surface, one inward arcuate groove segment extending from proximate said hub to a point intermediate said hub and said periphery, and one outward arcuate groove segment extending from a point intermediate said hub and said periphery to proximate said periphery.

Abstract: A brake disc for a wheeled vehicle; said brake disc including opposing annular braking surfaces; each of said surfaces provided with an identical pattern of disparate arcuate groove segments; said groove segments arranged in groups oriented in both clockwise and anti-clockwise directions; each of said groups including, one series of at least two arcuate groove segments lying along a common arc extending from proximate a hub of said braking surface to proximate the periphery of said braking surface, one inward arcuate groove segment extending from proximate said hub to a point intermediate said hub and said periphery, and one outward arcuate groove segment extending from a point intermediate said hub and said periphery to proximate said periphery.

Abstract: A brake disc for a wheeled vehicle; said brake disc including opposing annular braking surfaces; each of said surfaces provided with an identical pattern of disparate arcuate groove segments; said groove segments arranged in groups oriented in both clockwise and anti-clockwise directions; each of said groups including, one series of at least two arcuate groove segments lying along a common arc extending from proximate a hub of said braking surface to proximate the periphery of said braking surface, one inward arcuate groove segment extending from proximate said hub to a point intermediate said hub and said periphery, and one outward arcuate groove segment extending from a point intermediate said hub and said periphery to proximate said periphery.

Abstract: Disclosed are embodiments of a three-dimensional (3D) printer for building 3D objects with layer based, additive manufacturing techniques. The 3D printer can have an extrusion assembly including a hot end for heating consumable material and depositing the consumable material in layers on a printing bed. The hot end can be moved in a horizontal plane parallel the printing bed while the printing bed can be moved perpendicular to the horizontal plane to print the 3D object.

Abstract: Disclosed herein is an event notification system (10). The system (10) comprises a receiver (14) arranged to receive event information comprising geographical region information indicative of a geographical region for each of a plurality of events and time interval information indicative of a time interval for each of the plurality of events, the receiver (14) also being arranged to receive location information indicative of a location of a wireless communication device (12) at a time.

Abstract: A cutting tool includes a blade assembly with two retractable, opposing blades in a handle shaped for comfortable gripping. The blades may be closed and stowed by being partially retracted into the handle with a continuous motion of a single hand. The blades may similarly be extended and deployed for use with a continuous motion of a single hand. Each blade is formed with a shearing edge and a lever arm. Each lever arm is formed with a slot for engaging a blade locking tab joined to a cover for the handle. When the blade assembly is retracted into the handle, the shearing edges of the blades remain safely closed when the lever arms are released by a person using the tool. The cutting tool includes a retractable tether for preventing loss or damage to the tool should it be dropped.

Abstract: An “Azcuna Door Hanger” is an improved door or doorknob hanger modified with a clock interface made of movable parts to allow the clients/customers to communicate a specific time of requested service/services to the staff. It can be used in many businesses like hotels, motels, hospitals (private rooms), dormitories, etc.

Abstract: A spoon is configured to remove oil from a food upper surface on a food. The spoon has a lower portion, configured to receive the oil from below the lower portion through the lower portion such that the oil can be stored in the lower portion. An upper portion is mechanically coupled to the lower portion and is configured to be held by a human hand. The lower portion is configured to be partially submerged into the food such that the oil on the food upper surface enters the lower portion and is removed from the food.

Abstract: The disclosure provided herein provides compositions and methods for producing siRNA. Also disclosed are compositions and methods for modulating the production of siRNA. Also disclosed herein are compositions and methods of treating a disease in a subject comprising administering a Dicer enzyme comprising a helicase domain or a mutated Dicer enzyme to a subject. Also disclosed herein are methods of screening for a candidate modulator that modulates siRNA production.

Abstract: An enhanced viscosity mustard paste and a method of manufacturing the same. The enhanced viscosity mustard paste can include a mustard seed and acidic liquid solvent, without a noticeable increase in mustard flavor. The enhanced viscosity mustard paste according to this invention may also be a substantially flavorless mustard paste that retains the functional benefits of viscosity-building, texture-aiding, and emulsion-strengthening.