Abstract: An electronic device for repelling fish with Lorenzini organs includes (1) a generator having a power supply and output terminals including a first output terminal and a second output terminal, for converting a DC voltage supplied from the power supply to an AC voltage having an amplitude of less than 100V and outputting the AC voltage from the output terminals, (2) at least one electric wire, one or each of which is connected to one or both of the first output terminal and the second output terminal, and (3) a power switch that forms an electric circuit together with the generator and the at least one electric wire to turn on and off the output from the power supply, and that causes the power supply to supply a DC voltage when the first output terminal and the second output terminal are electrically connected via the seawater.

Abstract: A fairing attachment system for a wing of an aircraft includes a high lift support structure configured to movably support a high-lift airfoil element of a wing of an aircraft relative to the wing. The system includes a fairing device extending in a lengthwise direction, configured to provide an aerodynamic housing of the high lift support structure when attached to a surface of the wing, and an adjustable attachment element configured to attach the fairing device to the high lift support structure. The adjustable attachment element is longitudinally extending and adjustable in length to compensate for tolerances of the high lift support structure relative to the wing during assembly. An aircraft wing includes the fairing attachment system. The fairing attachment system is used in a method for mounting a fairing device to a wing of an aircraft.

Abstract: A wing for an aircraft includes a leading edge, a trailing edge, an upper skin extending between the leading edge and the trailing edge, a lower skin extending between the leading edge and the trailing edge, at least one spar extending between the upper skin and the lower skin in a spanwise direction to create a wing box with the upper skin and the lower skin, and at least one droop nose at the leading edge, wherein the at least one droop nose is coupled with a forward end of a hinge arm that extends in a chordwise direction, and wherein a rearward end of the hinge arm is swivably supported directly at or in the wing box.

Abstract: An aerial vehicle has a passenger cabin for receiving at least one passenger, a load-bearing structure beneath the cabin, and a propulsion system including a number of propulsion units, which propel the aerial vehicle for powered flight and vertical take-off and landing (VTOL). The propulsion units are preferably carried by support arms attached to the load-bearing structure and extending upwards therefrom so as to support the propulsion units at a level above the cabin. The aerial vehicle is preferably reconfigurable to a compact configuration after landing, with at least some of the propulsion units overlapping the cabin and/or each other, while still allowing passenger transfer in and out of the vehicle, thereby facilitating efficient use of space for implementing a vertiport.

Abstract: An unmanned aerial system for transporting and delivering packages, comprises an unmanned motorized aircraft and a non-motorized aerostatic device having aerostatic lift and being able to be coupled to the motorized aircraft, for transporting at least one package from a take-off site to a delivery site. This aerial system cooperates with a site for storing and distributing aerostatic modules each having a predetermined modular aerostatic lift, the storage and distribution site being located in the vicinity of the take-off site and being configured to deliver a set of j aerostatic modules on demand, which modules are secured by coupling means, so as to supply an aerostatic device with static lift that is substantially greater than or equal to the overall weight of the package to be transported and of the aerostatic device.

Abstract: A pet combing device includes a replaceable combing assembly and a combing device body. The combing device body includes an upper end part and a lower end handle part. One side of the upper end part is provided with an opened working chamber. The replaceable combing assembly is mounted in the working chamber. The upper end part of the combing device body is provided with a replacing button assembly. The replaceable combing assembly is detachably connected to the combing device body through the replacing button assembly. The upper end part of the combing device body is also provided with a latch button assembly which is used for switching a combing state and a dehairing state.

Abstract: An aerodynamic system for an aircraft. The aerodynamic system includes a first aerodynamic component configured to be movably coupled to a primary structure of the aircraft, a second aerodynamic component which is movably coupled to the first aerodynamic component and a first panel element coupled to the first aerodynamic component. The first panel element at least partially covers a gap between the first aerodynamic component and the second aerodynamic component. The aerodynamic system further includes a sealing element arranged between the first aerodynamic component and the second aerodynamic component. The sealing element is configured to at least partially block an airflow between the first aerodynamic component and the second aerodynamic component.

Abstract: A sustainable hybrid piezoelectric matrix ice protection system is provided. The system includes at least one energy harvester and anti-icing device and an energy storage device. Responsive to electrical power generated by the at least one energy harvester and anti-icing device being greater than a first threshold, the at least one energy harvester and anti-icing device stores the electrical power in the energy storage device. Responsive to the electrical power generated by the at least one energy harvester and anti-icing device being less than the first threshold, the at least one energy harvester and anti-icing device generates continuous, low-frequency vibrations for anti-icing.

Abstract: Beehives and beehive stand are provided herein. A beehive stand for use as a base of a beehive can include a stand body having a first side wall and a second side wall and a top portion having an opening therethrough. Each of the first and second side walls include an inner wall face with a drawer slide groove and a bottom board slide groove in the respective inner wall face of the respective first and second side wall. The inner wall faces of first and second side walls face each other such that the drawer slide grooves in the respective inner wall faces align and the bottom board slide grooves in the respective inner wall faces align. The beehive stand includes a drawer having a drawer front secured to a litter tray. The litter tray having side portions that are configured to slide along the drawer slide grooves in the respective first and second side walls to allow the drawer to be inserted and held within the stand body and removed from the stand body.

Abstract: The present disclosure is generally related to aircraft having one or more unducted fan propulsors at locations within specific regions relative to an airfoil, such as a wing or horizontal stabilizer. More specifically, the specific regions are located where there is a relatively higher pressure air flow beneath the wings or above a horizontal stabilizer. That higher pressure air flow can be utilized to provide increased thrust from the unducted fan propulsor.

Abstract: An aircraft system is provided that includes a first propulsor rotor, a first transmission, a second propulsor rotor, a second transmission and an intermittent combustion engine. The first propulsor rotor is rotatable about a first propulsor axis. The first transmission is coupled to the first propulsor rotor. The second propulsor rotor is rotatable about a second propulsor axis. The second transmission is coupled to the second propulsor rotor. The intermittent combustion engine is configured to drive rotation of the first propulsor rotor through the first transmission. The intermittent combustion engine is configured to drive rotation of the second propulsor rotor through the second transmission.

Abstract: A helicopter has an air inlet barrier filter (IBF) system including a guide rail extending axially along one side of a nacelle housing a helicopter engine. A filter panel is slidable along the guide rail for movement between a filtered position in which the filter panel covers an air inlet of the nacelle and an unfiltered position in which the filter panel uncovers a total surface area of the air inlet to provide for a fully unobstructed air flow to the engine.

Abstract: Described herein is an aircraft. The aircraft includes a peripheral assembly, such as a sensor probe. The aircraft further includes a release assembly connecting the peripheral assembly to a portion of the aircraft. The release assembly is configured to separate the peripheral assembly and the portion upon receipt of a threshold force. The release assembly may be configured to allow for the quick release, such as via a snap-fit connection, between the peripheral assembly and the portion of the aircraft.

Abstract: Plant growth structures and components of plant growth structures. The vertically-oriented plant growth structures include a plurality of growth basket receptacles that are in fluid communication with a fluid conduit to provide water to growth baskets placed within the growth basket receptacles. The plant growth structures provide water flow to the plants and a high density of plants in a relatively small growing area.

Abstract: A rotor system is provided in one example embodiment and may include a rotor duct; at least one rotor blade, wherein the at least one rotor blade comprises a tip end; and a multi-material tip extension affixed at the tip end of the at least one rotor blade, wherein the multi-material tip extension comprises an inboard portion fabricated from a first material and an outboard portion fabricated from a second material, wherein the second material is different than the first material.

Abstract: An aircraft wing including a wing structure supporting a wing cover having an outer aerodynamic surface, and a pop-up spoiler unit including an actuation mechanism and a spoiler coupled to the actuation mechanism. The spoiler is moveable by the actuation mechanism to deploy through an aperture in the wing cover. The pop-up spoiler unit is mounted to the wing structure to be substantially isolated from wing bending deflections. The wing structure has a neutral plane which is substantially neither stretched nor compressed during bending of the wing structure. The pop-up spoiler unit is mounted to the wing structure at only two pin joints each having a respective pin axis about which the pop-up spoiler unit is substantially free to rotate, and each pin axis substantially lies in the neutral plane.

Abstract: The present disclosure is generally related to aircraft having one or more unducted fan propulsors at locations within specific regions relative to an airfoil, such as a wing or horizontal stabilizer. More specifically, the specific regions are located where there is a relatively higher pressure air flow beneath the wings or above a horizontal stabilizer. That higher pressure air flow can be utilized to provide increased thrust from the unducted fan propulsor.

Abstract: A modular satellite testing platform system having an upper and a lower member along with a plurality of support members, intermediate members, and lower bar members that are interconnected to the upper member and the lower member. The system further includes a plurality of shelf members that are attached to the support members. The satellite also includes a plurality of bottom cover members that are attached to the lower member by a plurality of hinge members that allow the cover members to selectively rotated about an axis to be rotatably translated between an opened position and a closed position. The system yet further includes a thermal control system to allow maintaining the thermals of the satellite as desired.

Abstract: A pet chew article comprising luffa fibers and a polymer composition. The pet chew article may be formed by supplying luffa fibers, supplying a polymer composition combining the luffa fibers with the polymer composition and forming the pet chew article from the luffa fibers and the polymer composition.

Abstract: An apparatus for improving the safety of a pet during travel is disclosed. The apparatus includes a body with a base defined along the bottom side of the body. A back support is defined along a back side of the body opposite a front side. A cradle is removably positioned along the base and configured to support a general torso portion of a pet, with the cradle defining an inclined surface between the front side and the back side. The apparatus includes an adjustment system defined along the base and the cradle that adjusts a profile of the body to accommodate pets of varying sizes.