Abstract: The present disclosure provides systems, methods, and devices related to the control and operation of a carrier for supporting a payload. In one aspect, a carrier may include: a stator configured to be coupled to a base support, wherein the stator include a spherical surface; and a frame operably coupled to the stator via a plurality of piezoelectric actuators, wherein the frame is configured to rotate relative to the stator about one or more rotational axes, and wherein the frame is configured to support a plurality of payloads in a manner that substantially balances a weight of the plurality of payloads relative to the stator.

Abstract: A lubricating oil supply structure includes: a shaft; a bearing supporting the shaft and having an oil supply port, through which lubricating oil is supplied to between the shaft and the bearing, and an oil introduction port, through which the lubricating oil is introduced; a first oil passage, connected to the oil supply port, distributing the lubricating oil from an oil pump toward the oil supply port; a second oil passage, connected to the oil introduction port, supplying the lubricating oil introduced through the oil introduction port to a supply destination; a connection oil passage, formed by a gap between the bearing and the shaft, connecting between the first oil passage and the second oil passage, and a throttle portion, formed on a part of the connection oil passage, suppressing a flow of the lubricating oil from the oil supply port toward the oil introduction port.

Abstract: A fuel cell system includes: a fuel cell; an air discharge passage configured to discharge an air exhaust gas from the fuel cell; a back pressure adjusting valve provided in the air discharge passage and configured to adjust pressure of the air exhaust gas; a cooling device configured to cool the fuel cell by carrying out heat exchange using a heat medium; a water reservoir storing water; a high pressure introduction passage connecting an upstream side of the air discharge passage which is more upstream than the back pressure adjusting valve in an air flow direction to the water reservoir; and a sprinkling device configured to sprinkle the water of the water reservoir over the cooling device. The sprinkling device is configured to sprinkle the water of the water reservoir pumped by pressure of the air exhaust gas over the cooling device.

Abstract: A lens barrel includes one or more movable lens groups, and a cam barrel associated with the one or more movable lens groups and configured to balance a center of gravity of the one or more movable lens groups.

Abstract: A lens device includes a first motor, a second motor, a lens, a cam ring, and a gear part. The cam ring is configured to, in cooperation with the first motor and the second motor, drive the lens to move in a direction along an optical axis of the lens. The gear part is configured to transmit a power of both the first motor and the second motor to the cam ring. The gear part includes a first gear connected to a first shaft of the first motor, a second gear connected to a second drive shaft of the second motor, and a third gear that meshes with the first gear and the second gear. The power of the first motor and the second motor is transmitted to the cam ring via the third gear.

Abstract: A fuel cell system includes a water supply unit configured to supply water from a first water storage unit to a second water storage unit, and a water usage unit uses water in the second water storage unit. The first and second water storage units store produced water form the fuel cell. When the amount of water stored in the first water storage unit exceeds a first predetermined value and the amount of water stored in the second water storage unit is smaller than a second predetermined value, water is supplied from the first water storage unit to the second water storage unit. When water is being used by the water usage unit, water is supplied from the first water storage unit to the second water storage unit even when the amount of water stored in the second water storage unit is not smaller than the second predetermined value.

Abstract: Disclosed is a method for determining the sex of yellowtails, the method comprising a step of identifying whether an amino acid residue at position 143 in polypeptide encoded by the HSD17B1 gene of yellowtails is a glutamic acid residue or a glycine residue; a nucleic acid molecule or a primer set which is for use in said method; or a kit comprising the same, for determining the sex of yellowtails. The method according to the present invention is useful in that the genetic sex of yellowtails can be accurately determined.

Abstract: A movable object includes a photographing device, a support member supporting the photographing device, and a propulsion system configured to propel the movable object. The photographing device includes an image sensor, a housing accommodating the image sensor, a heat conductor configured to transmit heat generated by the image sensor to the housing, and a heat radiator provided on an outer surface of the housing.

Abstract: A trash can device for an aircraft lavatory unit is provided, including: a waste container in a storage chamber of the aircraft lavatory unit; a chute, disposed above the waste container, including a trash feed opening formed at a section of the chute corresponding to a trash feed port of a panel sectioning off the storage chamber; and a waste flap that opens and closes the trash feed opening. A fire spreading prevention space is formed below the chute in a state when the waste flap is positioned in a closed position in which the trash feed opening is closed by the waste flap. The trash can device is provided with a holding/moving portion of the waste flap, the holding/moving portion holds the waste flap in an open position in which the trash feed opening is opened and moves the waste flap to the closed position when exposed to heat.

Abstract: A waste bin device of an aircraft lavatory unit is provided. A chute, waste flap, and waste container are formed from a material having fire resistance performance. A fire spreading prevention space that prevents fire from spreading to the outside of a waste bin device main body due to a flame occurring when inserted waste catches fire is formed inside the waste bin device main body at a storing position of the waste container positioned with regard to a lower portion of the chute. A maintaining portion maintains the waste container at a storing position. The maintaining portion includes a first maintaining portion that maintains from a vertical direction a condition where an upper portion of the waste container and lower portion of the chute are aligned, and a second maintaining portion that maintains the condition from a direction orthogonal to the vertical direction, at the storing position.

Abstract: A lens device includes a first electric motor, a second electric motor, a lens, a cam ring, a first gear, a second gear, and a controller. The cam ring is configured to drive the lens in a direction of an optical axis of the lens. The first gear is configured to transmit power generated by the first electric motor to the cam ring. The second gear is configured to transmit power generated by the second electric motor to the cam ring. The controller is configured to, when controlling the cam ring to stop rotating, first stop a rotation of the first electric motor and then stop a rotation of the second electric motor.

Abstract: A lubricating oil supply structure includes: a shaft; a bearing supporting the shaft and having an oil supply port, through which lubricating oil is supplied to between the shaft and the bearing, and an oil introduction port, through which the lubricating oil is introduced; a first oil passage, connected to the oil supply port, distributing the lubricating oil from an oil pump toward the oil supply port; a second oil passage, connected to the oil introduction port, supplying the lubricating oil introduced through the oil introduction port to a supply destination; a connection oil passage, formed by a gap between the bearing and the shaft, connecting between the first oil passage and the second oil passage, and a throttle portion, formed on a part of the connection oil passage, suppressing a flow of the lubricating oil from the oil supply port toward the oil introduction port.

Abstract: A fuel cell system includes a fuel cell, a water storage unit configured to store water recovered from the fuel cell and be able to drain the stored water, a water usage unit configured to use the water in the water storage unit, and a control unit configured to control a drain of the water from the water storage unit. The control unit is configured to, when a first predetermined time has elapsed since a last drain of the water from the water storage unit, drain the water from the water storage unit. The control unit is configured to, when it is predicted that the water in the water storage unit is used by the water usage unit within a second predetermined time shorter than the first predetermined time, not drain the water from the water storage unit even when the first predetermined time has elapsed since the drain of the water from the water storage unit.

Abstract: A trash can device for an aircraft lavatory unit is provided, including: a waste container in a storage chamber of the aircraft lavatory unit; a chute, disposed above the waste container, including a trash feed opening formed at a section of the chute corresponding to a trash feed port of a panel sectioning off the storage chamber; and a waste flap that opens and closes the trash feed opening. A fire spreading prevention space is formed below the chute in a state when the waste flap is positioned in a closed position in which the trash feed opening is closed by the waste flap. The trash can device is provided with a holding/moving portion of the waste flap, the holding/moving portion holds the waste flap in an open position in which the trash feed opening is opened and moves the waste flap to the closed position when exposed to heat.

Abstract: A light amount adjustment device includes a base member, a rotation member rotatably held with respect to the base member, and a light amount adjustment member engaged with the rotation member and configured to be driven by the rotation member to adjust an amount of passing light. The rotation member includes a first surface area in contact with the base member and a second surface area not in contact with the base member. A surface roughness of the first surface area is greater than a surface roughness of the second surface area.

Abstract: A slide surface of a thrust bearing includes a planar portion, a taper portion, and a pocket portion. The pocket portion includes a bottom surface, a first side surface, and a second side surface. The first side surface is formed on the side of the taper portion. The second side surface is formed on a side opposed to the first side surface. A depth from the plane of the planar portion to the thinnest portion of the taper portion is between 10 ?m and 80 ?m. A first angle that is an angle between a virtual surface obtained by extending the bottom surface and the second side surface is between 90° and 120°. And a second angle that is an angle between a virtual surface obtained by extending the first side surface and the tapered surface is between 60° and 120°.

Abstract: The present disclosure provides a control device for controlling an imaging device. The control device includes an operation unit configured to be operated by an external force; a detection unit configured to detect an operation state of the operation unit; a processor configured to execute a program to: perform a predetermined operation based on the operation state of the operation unit; and invalidate an execution of the predetermined operation performed by the processor based on the operation state of the operation unit when the imaging device is connected to an object satisfying a condition.

Abstract: The present disclosure provides a lens device. The lens device includes a first motor and a second motor; a lens; and a cam ring. The cam ring is configured to, in cooperation with the first motor and the second motor, drive the lens move in a direction along an optical axis of the lens. The lens device also includes a gear part, configured to transmit power of the first motor and the second motor to the cam ring.

Abstract: A pressure ring includes a first pressure ring fitted in a first ring groove of a piston; and a second pressure ring fitted in a second ring groove of the piston, and positioned between the first pressure ring and an oil ring. The second pressure ring is provided with a groove that extends across a surface of the second pressure ring from an inner peripheral side to an outer peripheral side. The groove is configured such that at least one of a width and a depth of the groove becomes larger toward the outer peripheral side from the inner peripheral side.