Abstract: A method for calculating a discharge remaining time, including: collecting a discharge current of an energy storage device based on a preset frequency, and performing amplitude limiting jitter processing on the sampled discharge current; when a current difference between a discharge current at a current moment and a discharge current at a previous moment is not greater than a current threshold, considering that the sampled discharge current has not changed, and directly using a target discharge current at the previous moment to calculate the discharge remaining time; and when the current difference between the discharge current at the current moment and the discharge current at the previous moment is greater than the current threshold, recalculating a target discharge current at the current moment.

Abstract: A radiographic inspection apparatus and a vehicle-mounted security inspection system. The radiographic inspection apparatus includes a scanning device, where the scanning device includes: an upright framework; a slip ring rotatably provided on the upright framework; and a locking mechanism. The locking mechanism includes: a driving mechanism provided on the upright framework; and a contact portion provided on the driving mechanism to come into contact with an outer ring of the slip ring under a driving of the driving mechanism, so as to prevent the slip ring from rotating relative to the upright framework.

Abstract: A media marker mechanism may be used to send, to a cloud service, up-to-date context regarding playback of a media content stream on a user device. The cloud service may insert a media content item into a media content stream and/or combine media content items into a media content stream. The cloud service may implement the media marker mechanism to tag a content item with metadata that can be read by the user device. The user device can play the streaming media content and, when the tagged content item plays, read the metadata and send it to the cloud service. The cloud service can use the metadata to enrich the media content delivery by, for example, providing a companion image that the user device can display while paying the tagged content item, providing a link to make the companion image clickable, handling requests referring to the media content, etc.

Abstract: The present disclosure embodiment may disclose a glasses including a glasses frame and two speakers. The glasses frame may include a glasses rim and two glasses temples. The two glasses temples may be rotatably connected to the glasses rim, respectively. The two speakers may include an earphone core. The two speakers may be connected to the two glasses temples via hinge components of the two glasses temples, respectively. The hinge components may be rotatable to change a position of each of the speakers relative to connected one of the glasses temples. The glasses temple may include a circuit component or a battery to drive the earphone core to vibrate to generate a sound. In the present disclosure, the glasses rim and the glasses temple may be connected through a rotating shaft, thereby protecting the connection wire in the glasses and extending the life of the connection wire.

Abstract: The invention discloses an external roll cover for a pickup truck, including a layer of leather and a supporting frame, the layer of leather is connected to the cargo hopper through a supporting frame, the supporting frame includes a front rail assembly, a rear rail assembly and a side rail assembly, the front rail assembly is connected to the rear rail assembly through a side rail assembly, the front rail assembly includes a front rail, a front rail joint and a front rail rubber strip, the front rail is connected with the side rail assembly through a front rail joint, the front rail is connected with a front rail rubber strip, the front rail joints are connected at both ends of the front rail, the front rail rubber strip is stick on the bottom of the front rail. The front rail strip is very long, which can play a good waterproof effect.

Abstract: A bonding structure and a power device. The bonding structure includes a first power unit and at least two bonding wires. At least one end of the bonding wire is connected to the first power unit through bonding. Projections that are of lead paths of the at least two bonding wires and that are on a preset plane have at least one intersection point. Spatial cross wire bonding is performed on the bonding wires, so that lead paths of the bonding wires form an angle with each other, thereby weakening electromagnetic force between the bonding wires. Therefore, fatigue due to fluctuating stress of the bonding wires can be alleviated, service lives of the bonding wires can be prolonged, and bonding effect can be ensured to a maximum extent.

Abstract: A channel information obtaining method and a communication apparatus are provided. The method includes: a network device sends reference signals to a terminal device by using a plurality of antenna unit groups, where at least two antenna unit groups of the plurality of antenna unit groups belong to one antenna port; and the network device receives first information from the terminal device, where the first information indicates channel information corresponding to the plurality of antenna unit groups, so as to improve accuracy of obtained channel information.

Abstract: The present application discloses an optical waveguide structure, comprising: a lower cladding layer composed of a first dielectric layer; and a core layer which is composed of a patterned structure of a second material layer and presents a strip structure. A first trench is formed in a top region of the core layer. An upper cladding layer fully fills the first trench, extends to a top surface of the core layer outside the first trench, and coats side faces of the core layer in a width direction of the core layer. A refractive index of the second material layer is greater than a refractive index of the first dielectric layer, and the refractive index of the second material layer is greater than a refractive index of the upper cladding layer. The present application also provides a method for manufacturing an optical waveguide structure.

Abstract: A foldable display device may have housing portions coupled by a hinge. A flexible display may overlap the hinge. The hinge may have portions that rotate relative to each other about rotational axes that lie above the hinge to help reduce stress to the display. The hinge may have gear plates with interlocked teeth that synchronize rotational movement between left and right halves of the hinge. The hinge may also have asymmetric friction clips that impose different amounts of rotational friction to the hinge depending on the direction of rotation of the hinge.

Abstract: Provided in the present disclosure are a paging method and apparatus, and a storage medium. The paging method includes: determining that entry into a target sleep state is required, and transmitting an assisted paging request to at least one second terminal device; and determining that a target terminal device of the at least one second terminal device accepts the assisted paging request, and entering the target sleep state.

Abstract: An open-ear Bluetooth® earphone includes an earphone body and a support frame. The support frame is configured to be plugged into a cavum concha of a wearer. The earphone body is provided with an audio source, and the support frame is installed on the earphone body and corresponds to the audio source. When in use, the support frame is configured to be firmly plugged into the cavum concha of the wearer to allow the earphone body to be worn on the ear of the wearer. The audio source corresponds to the ear canal of the wearer through the support frame, so that the sound emitted from the audio source is transmitted into the ear canal through the support frame. The audio source is directly opposite of the ear canal through the support frame to shorten the distance between the audio source and the ear canal.

Abstract: An open-ear earphone includes a housing, a chamber is provided inside the housing, a speaker is provided inside the chamber and divides the chamber into a front chamber and a rear chamber. The housing is provided with a first sound hole and a second sound hole. The front chamber is communicated to the outside through the first sound hole, and the rear chamber is communicated to the outside through the second sound hole. The rear chamber includes a first volume down chamber and a second volume down chamber communicated to the first volume down chamber, and the first volume down chamber is located between the speaker and the second volume down chamber. The sound wave in backward motion generated by the speaker is transmitted to the outside from the second sound hole after being reduced by the first volume down chamber and the second volume down chamber.

Abstract: A window blind has a headrail, a bottom rail, and multiple slats provided below the headrail. In the headrail, an adjusting shaft and an auxiliary adjusting module are provided and connected. A ladder string is connected to the adjusting shaft, whereby the adjusting shaft adjusts a shape of the ladder string to tilt the slats and the bottom rail. A first cord and a second cord extend out of the headrail and are connected to opposite sides of the bottom rail. When the adjusting shaft drives the slats to tilt in a direction, the auxiliary adjusting module releases the first cord out of the headrail and retracts the second cord into the headrail. When the slats are tilted in an opposite direction, the auxiliary adjusting module retracts the first cord into the headrail and releases the second cord out of the headrail.

Abstract: This application provides a virtualized device, and an interrupt processing method running on the virtualized device. The method includes: performing, by a processor, the following operations in a guest mode: receiving, by the processor, an interrupt request from hardware; determining, by the processor, a processing entity of the received interrupt request based on a correspondence between the interrupt request and the processing entity; and when the processing entity of the received interrupt request includes the virtual processor currently running on the processor, determining, by the processor based on a correspondence between the interrupt request and an interrupt service routine, the interrupt service routine corresponding to the received interrupt request, and invoking the interrupt service routine to process the interrupt request.

Abstract: This application describes examples of a grid-tied inverter apparatus and a grid-tied control method. In one example, the grid-tied inverter apparatus includes an inverter circuit, a controller, and a filter circuit. The controller is configured to adjust switching frequencies of a plurality of power switching transistors based on an output current value of the inverter apparatus, to adjust a resonance frequency of the filter circuit through different resonant branches, so that the resonance frequency meets a grid-tied requirement.

Abstract: The present disclosure provides an organic light-emitting diode, a method of manufacturing the same, and an organic light-emitting diode display apparatus. The organic light-emitting diode includes an anode; a hole injection layer; a hole transport layer; an electron blocking layer; an organic luminescent layer; a hole blocking layer; an electron transport layer; and a cathode, wherein a first composite layer is provided between the electron blocking layer and the organic luminescent layer, and the first composite layer includes a material of the electron blocking layer and a host material of the organic luminescent layer.

Abstract: A battery cover includes a top cover assembly and an insulating support. The top cover assembly can be fixedly connected with a case to form an accommodation space for accommodating a core, and the top cover assembly can be welded with a tab on the core. The insulating support can be accommodated in the accommodation space. The insulating support and the top cover assembly form an accommodation cavity for accommodating the tab, and the insulating support is provided with a notch for the tab to pass through.

Abstract: A welding clamp for use in battery manufacturing is described. The welding clamp includes a plurality of clamping portions used to fit and clamp a case of a battery cell, the clamping portion includes a body portion and a connecting portion, and the connecting portion is detachably connected to the body portion; and a wear-resistant layer is connected to a surface of the connecting portion facing the case. In the process of welding the case and the end cover of the battery cell, through fitting and clamping the case by the clamping portion of the welding clamp, the clamping portion can play a position-limit role to the wall of the case to relieve the deformation of the case during the welding process, thereby improving the welding quality of the case and the end cover and thus improving the production quality of the battery cell.

Abstract: System testing is described. An example system testing method includes: acquiring module relationship information for a system under test, the system under test including a plurality of modules, the module relationship information indicating a logical relationship between each two of the plurality of modules; and testing at least two modules in the system under test based on the module relationship information, the at least two modules being associated with each other for the same function implemented by the system under test. By use of the technical solution of the present disclosure, both system and module perspectives can be applied to system integration testing, so as to achieve a more comprehensive system testing coverage and find problems in the system under test as soon as possible, which can help to improve the system testing coverage and system testing efficiency.