Abstract: Systems and methods for retinal imaging are provided. A heads-up display (HUD) can be integrated with advanced retinal imaging modalities, including optical coherence tomography (OCT) and fundoscopy (e.g., fluorescence fundoscopy). The HUD can serve as a crucial component of this approach, offering several key functionalities (e.g., a fixation target and/or a means for dark adaptation).

Abstract: An impeller with different blades with different lengths for suppressing noise is disclosed. The impeller includes a fan hub and a plurality of blades. The blades are positioned at intervals around the fan hub and arranged in a circular array. The blades extend radially from the fan hub, and two opposite ends of each of the blades are a root portion and a head portion respectively. All root portions of the blades are connected to a peripheral side of the fan hub, and all head portions of the blades are located on a same circle. Every two adjacent blades are different in length in a longitudinal direction from the root portion thereof to the head portion thereof.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configured grant (CG) for a physical uplink channel. The UE may transmit a communication using CG physical resource blocks of data symbols of a plurality of symbols scheduled by the CG and a termination indication that indicates a termination of the data symbols prior to a last symbol of the plurality of symbols scheduled by the CG. Numerous other aspects are described.

Abstract: Embodiments of this application provide a method for making recommendations to a user and an apparatus, a computing device, and a storage medium. The method includes obtaining user attribute information, reading attribute information, reading history information, and candidate items; performing intra-group information fusion on the reading attribute information according to preset groupings to obtain reading feature information; obtaining a reading history weight according to the reading history information; obtaining history feature information according to the reading history weight and the reading history information; obtaining user feature information according to the user attribute information, the reading feature information, and the history feature information; and selecting a recommendation item from the candidate items according to the user feature information.

Abstract: A power management integrated circuit (PMIC) soldered onto a printed circuit board, includes: a first output stage circuit and a second output stage circuit. In a separate power supply configuration, first and second current inflow pins of the first and second output stage circuits are soldered to first and second current inflow printed lines, respectively, wherein the first and second current inflow printed lines are not directly electrically connected to each other; and, first and second current outflow pins of the first and second output stage circuits are soldered to first and second current outflow printed lines respectively, wherein the first and second current outflow printed lines are not directly electrically connected to each other. In a cooperation power supply configuration, the first and second current inflow pins are both soldered to a common current inflow printed line of the PCB, to be electrically connected with each other.

Abstract: The invention relates to a sterilization and deodorization waste bin, in particular to a sterilization and deodorization waste bin with a dual-band ultraviolet tube, which comprises an isolation cavity formed in an inner side of a lid and a dual-band ultraviolet tube mounted in the isolation cavity and capable of generating ultraviolet light waves for direct sterilization and ultraviolet light waves for ozone sterilization. The isolation cavity comprises a reflector and transparent quartz glass, an open surface of the reflector faces an inner cavity of the bin body, and the transparent quartz glass matches the open surface of the reflector in shape and size and covers an opening of the reflector through a silicone seal ring.

Abstract: This application provides a mobile terminal including a first magnet and a second magnet. At least a part of the first magnet and at least a part of the second magnet are disposed in the accommodating space. The first magnet is disposed on a back facet of the display module, the second magnet is disposed on the middle frame, and positions of the first magnet and the second magnet are disposed opposite to each other. The first magnet is a coil, and the second magnet is a main magnet; or the first magnet is a main magnet, and the second magnet is a coil. The main magnet is a Halbach array, and the main magnet generates a unilateral magnetic field on a side opposite to the coil.

Abstract: A sterilization and deodorization waste container having dual-wave band ultraviolet lamp tube includes an isolation chamber provided on an inner side of a container lid and a dual-wave band ultraviolet lamp tube installed in the isolation chamber. The dual-wave band ultraviolet lamp tube is capable of simultaneously generating a direct ultraviolet light wave and an ozone ultraviolet light wave. The isolation chamber includes a reflector housing having a light transmitting window facing an inner cavity of a container body. The dual-wave band ultraviolet lamp tube is controlled by a control circuit to turn on to generate the ultraviolets into an inner cavity of the container body while the container lid is closed and to turn off to stop generating the ultraviolet while the container lid is opened.

Abstract: A digital-display control apparatus of a garbage can with adjustable sensing distance includes an emitter, a receiver, amplifier, an analog to digital converter, an analog to digital conversion result register connected to the receiver via the amplifier and the analog to digital convertor, a comparison unit, a sensing distance adjustable register, a microcomputer control unit, a drive circuit, and a digital displayer and keys, which is capable of selecting the sensing distance by directly pressing keys or choose the predetermined sensing distance.

Abstract: A trash can includes an induction actuated cover being actuated to move between a closed position and an opened position in response to an object, an actuation module being activated at one of an operation mode and a setting mode, and an adjustable detection distance arrangement. At the operation mode, the induction actuated cover is moved from the closes position to the opened position when the object is detected above an induction window within a detection range at a preset detection distance. The adjustable detection distance arrangement is arranged to store a desired detection distance at the setting mode. The desired detection distance is selectively adjusted from the induction window and is defined as a distance of the object placed above the induction window. The desired detection distance is stored to replace the preset detection distance for actuating the induction actuated cover at the operation mode.

Abstract: This application provides a mobile terminal including a first magnet and a second magnet. At least a part of the first magnet and at least a part of the second magnet are disposed in the accommodating space. The first magnet is disposed on a back facet of the display module, the second magnet is disposed on the middle frame, and positions of the first magnet and the second magnet are disposed opposite to each other. The first magnet is a coil, and the second magnet is a main magnet; or the first magnet is a main magnet, and the second magnet is a coil. The main magnet is a Halbach array, and the main magnet generates a unilateral magnetic field on a side opposite to the coil.

Abstract: A trash can includes an induction actuated cover being actuated to move between a closed position and an opened position in response to an object, an actuation module being activated at one of an operation mode and a setting mode, and an adjustable detection distance arrangement. At the operation mode, the induction actuated cover is moved from the closes position to the opened position when the object is detected above an induction window within a detection range at a preset detection distance. The adjustable detection distance arrangement is arranged to store a desired detection distance at the setting mode. The desired detection distance is selectively adjusted from the induction window and is defined as a distance of the object placed above the induction window. The desired detection distance is stored to replace the preset detection distance for actuating the induction actuated cover at the operation mode.

Abstract: The invention relates to a sterilization and deodorization waste bin, in particular to a sterilization and deodorization waste bin with a dual-band ultraviolet tube, which comprises an isolation cavity formed in an inner side of a lid and a dual-band ultraviolet tube mounted in the isolation cavity and capable of generating ultraviolet light waves for direct sterilization and ultraviolet light waves for ozone sterilization. The isolation cavity comprises a reflector and transparent quartz glass, an open surface of the reflector faces an inner cavity of the bin body, and the transparent quartz glass matches the open surface of the reflector in shape and size and covers an opening of the reflector through a silicone seal ring.

Abstract: A trash can includes an induction actuated cover being actuated to move between an closed position and an opened position in response to an object, an actuation module being activated at one of an operation mode and a setting mode, and an adjustable detection distance arrangement. At the operation mode, the induction actuated cover is moved from the closes position to the opened position when the object is detected above an induction window within a detection range at a preset detection distance. The adjustable detection distance arrangement is arranged to store a desired detection distance at the setting mode. The desired detection distance is selectively adjusted from the induction window and is defined as a distance of the object placed above the induction window. The desired detection distance is stored to replace the preset detection distance for actuating the induction actuated cover at the operation mode.

Abstract: A power-saving control device for operation of an electronic garbage can includes a rotation-blocked current setting register, a sampling resistor, an analog-digital converter, an analog-digital conversion result register, and a comparing unit, which are electrically connected in sequence. The comparing unit compares a current value obtained in real time with a reference current value in the rotation-blocked current setting register, and when the real-time current value is greater than the reference current value, the microcomputer control unit stops supplying power to a motor by controlling the motor positive and negative rotation driving circuit. The power-saving control device has greatly reduced power consumption during operation of an electronic garbage can and a prolonged service life of its battery.

Abstract: Disclosed is a sliding door or window. The sliding door or window includes a door/window frame, a swing fastening mechanism is disposed at a lower end of a side of the door/window frame, and a locking structure is mounted on an upper end of the side of the door/window frame. The swing fastening mechanism and the locking structure are each provided with a snakelike groove inside which a shaft operative to slide along a groove orientation is arranged. A handle disposed on the door/window frame is operative to drive the shaft to slide in the snakelike groove, thereby forcing the swing fastening mechanism or/and the locking structure to swing.

Abstract: A door-and-window system having a handle component (121), a transmission component (123) and a force receiving portion (12231). When the handle component (121) is operated, the force receiving portion (12231) moves along a first guide groove (12211) via the transmission component (123), and at the same time a driving portion (12232) moves along a second guide groove (12221). Due to a relationship between a guide member (1224) and a third guide groove (12212), a first base seat (1221) translates relative to a second base seat (1222) along a direction of the third guide groove (12212), such that a movable door-and-window (11) can abut tightly against or move away from a sealing member (24) on a door-and-window mounting profile (2).

Abstract: A battery-free electric mosquito swatter, comprising a flat swatting portion (1), a handle (2), a control circuit board (3), and a mechanical energy-based power generation device (5). The flat swatting portion (1) consists of a swatter frame and a swatter net. The flat swatting portion (1) is connected to the handle (2), the control circuit board (3) and the mechanical energy-based power generation device (5) are disposed within the handle (2), and the swatting net and the mechanical energy-based power generation device (5) are electrically connected to the control circuit board (3). The mechanical energy-based power generation device (5) comprises a hand squeeze member (51), a gear transmission mechanism, and a power generator (57). The hand squeeze member (51) is provided with a curved gear rack (511) meshing with an input gear of the gear transmission mechanism. An output gear of the gear transmission mechanism drives a rotating shaft of a rotor of the power generator (57) to rotate.

Abstract: An electric brush powered by mains electricity includes a power converter, an upper housing, a lower housing, a push button switch, an electric motor, a speed reducer, an output rotation shaft, an adapter, a brush head and a seal ring. The speed reducer and the electric motor of a mechanical rotation part, and the push button switch and a low-voltage power socket of a circuit part are all mounted in an airtight housing inner cavity. Meanwhile, the brush head and a main body part are in a plugged-in connection. The brush head can be randomly changed to realise multiple purposes, so that the defects of the poor waterproofing performance and the single function of existing electric brushes can be thoroughly solved, thereby greatly improving the reliability and the convenience of the product.

Abstract: A power-saving control device for operation of an electronic garbage can is provided. The power-saving control device includes a rotation-blocked current setting register, a sampling resistor, an analog-digital converter, an analog-digital conversion result register, and a comparing unit, which are electrically connected in sequence. A reference end of the comparing unit is connected to the rotation-blocked current setting register, and an output end of the comparing unit is connected to a microcomputer control unit. A connecting point between the sampling resistor and a motor positive and negative rotation driving circuit is connected to the analog-digital converter.