Abstract: A pressing plate structure includes a frame and a pressing block unit. The pressing block unit includes a first crimping portion and a second crimping portion fixedly connected to each other. The first crimping portion is movably disposed on the frame in a first direction to approach or leave an electrode assembly. The second crimping portion protrudes downward from the first crimping portion in the first direction. The second crimping portion is provided with a welding hole extending in the first direction. The second crimping portion is capable of being crimped onto a tab of the electrode assembly, and the welding hole exposes part of the tab.

Abstract: A packaging structure with an antenna and a manufacturing method thereof are disclosed. The packaging structure includes a package, an antenna circuit, an interconnecting circuit, an outer-layer circuit, and a chip. The package is internally packaged with a first conducting through hole column and a second conducting through hole column. The antenna circuit is disposed on a first surface and a sidewall of the package. The interconnecting circuit is packaged in the package, and is connected to the antenna circuit by the first conducting through hole column. The outer-layer circuit is disposed on a second surface of the package, and is connected to the interconnecting circuit by the second conducting through hole column. The outer-layer circuit is further connected to a conductive pin. The chip is packaged in the package, and is connected to the interconnecting circuit or the outer-layer circuit.

Abstract: A jet flow adjustment method for rotary steerable downhole release includes steps of: defining a diversion ratio p of a jet nozzle by a ground control system; and sending the diversion ratio p of the jet nozzle to a control unit of a downhole rotary steerable system; and determining an opening areas of the jet nozzle by the control unit according to the diversion ratio p of the jet nozzle and an equivalent channel area S of a drilling tool; controlling an adjustable bypass valve by the control unit of the downhole rotary steerable system according to the calculated opening area s of the jet nozzle, so as to control an overlapping area between sector holes of a rotor end and a stator end, thereby opening the jet nozzle for release. The present invention has simple control and strong release ability.

Abstract: A water environment temperature measurement tool includes measurement boxes and a counterweight box; a plurality of groups of the measurement boxes are provided; the counterweight box is movably connected with a group of measurement boxes; and each measurement box is provided with a temperature measurement instrument inside. The water environment temperature measurement tool further comprises: control mechanisms, each comprising a water inlet pipe, a water retaining member, an elastic member, a control assembly, a rotating seat, a rotating shaft, a second screw rod, a control seat and a rotary assembly. In the water environment temperature measurement tool of the present invention, the control mechanisms can achieve extraction and temperature measurement of water at different water body depths by cooperating with the measurement boxes and the temperature measurement instruments.

Abstract: The present application discloses a composite metal oxide semiconductor which is a metal oxide semiconductor doped with a rare earth oxide. Even doping the praseodymium oxide or ytterbium oxide at a small doping amount, oxygen vacancies could be suppressed as well as the mobility be maintained; critically, the thin-films made thereof can avoid the influence of light on I-V characteristics and stability, which results in great improvement of the stability under illumination of metal oxide semiconductor devices. The present application also disclose the thin-film transistors made thereof the composite metal oxide semiconductor and its application.

Abstract: A power conversion circuit includes a switching network, a control circuit, a filter circuit, and a direct current side circuit; and the filter circuit includes a first power inductor, a common mode choke, a first differential mode filter capacitor, a first common mode filter capacitor, and a second common mode filter capacitor. The first power inductor includes a first winding and a second winding, and the common mode choke includes a third winding and a fourth winding; a first end of the first winding and a first end of the second winding are separately connected to the switching network, a second end of the first winding and a second end of the second winding are respectively connected to a first end of the third winding and a first end of the fourth winding.

Abstract: Disclosed are Respiratory Syncytial Virus (RSV) antigens including a recombinant RSV F protein stabilized in a prefusion conformation. Also disclosed are nucleic acids encoding the antigens and methods of producing the antigens. Methods for generating an immune response in a subject are also disclosed. In some embodiments, the method is a method for treating or preventing a RSV infection in a subject by administering a therapeutically effective amount of the antigen to the subject.

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: The present disclosure provides a battery charging current control device. The battery charging current control device comprises an H-bridge circuit, a sampling circuit, a control circuit and a pulse width modulation circuit, wherein the H-bridge circuit is respectively connected with an external power supply and a battery and used for transmitting current from the external power supply to the battery for supplying power for the battery; the sampling circuit is connected with the H-bridge circuit and used for collecting an output current and an output voltage of the H-bridge circuit to obtain a current analog signal and a voltage analog signal; the control circuit is connected with the sampling circuit and used for generating a control signal according to the current analog signal, the voltage analog signal and the capacity of the battery; and the pulse width modulation circuit is respectively connected with the control circuit.

Abstract: The present invention discloses a right-angle turning method for small-diameter TBM exploration adit excavation and belongs to the field of geological exploration of water conservancy and hydropower projects.

Abstract: Disclosed is a method and system for grid connection management of renewable energy generation, the method comprises: obtaining operating condition data of a first power supply, a second power supply, a power grid, and a load in a preset period; establishing a first optimal control model according to the first condition data, and establishing a second optimal control model; monitoring grid connection management status of the first optimal control model and the second optimal control model; analyzing stability when the first optimal control model is switched to the second optimal control model. The beneficial effects of this disclosure are: completing the switch from the first optimal control model to the second optimal control model in the renewable energy generation grid connection management, which improves the smoothness of control model switching under different load conditions in the renewable energy generation process.

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: 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: 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: 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: 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 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: 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.