Abstract: The present disclosure provides a toughened resin composition, which includes: (A) a toughened and modified compound, which includes a polybenzoxazine compound, an anhydride grafted olefin polymer, and a diisocyanate compound; and (B) a thermosetting polymer; wherein, in the toughened and modified compound, the diisocyanate compound forms a bond with the polybenzoxazine compound and the anhydride grafted olefin polymer, respectively. The present disclosure has high toughness and excellent mechanical properties; thus, it may have a wide range of applications in the fields of electronics, aerospace, and the like.

Abstract: The invention is an electric commutating ratchet tool comprising: a head; a ratchet mechanism with a rotating member and a latch member; the rotating member is capable of rotating, the latch member is capable of displacing and controlling rotation direction of the rotating member; and a commutating device with a commutating member, a magnetic driving member and a magnetic actuating unit; the commutating member is capable of displacing to abut against the latch member; the magnetic actuating unit is opposite to the magnetic driving member, either the magnetic actuating unit or the magnetic driving member is disposed on the commutating member; the magnetic actuating unit is at least one electromagnet; magnetic direction is changed through each of the electromagnets, so that the magnetic driving member is magnetically driven to change a position of the latch member.

Abstract: A method for analyzing droplets based on images: obtaining a working dye channel image and a reference dye channel image corresponding to a droplet system (S1); separately performing a preset image processing operation on the working dye channel image and the reference dye channel image (S2); using the working dye channel image or the reference dye channel image as a target image (S3), and determining a region in which each droplet is located from within the target image (S4); and on the basis of the determined region in which each droplet is located, analyzing the droplet system (S5). The method can effective effectively improve the accuracy of droplet analysis. Further provided are a computer device and a storage medium.

Abstract: Disclosed are a method and apparatus for determining an RA-RNTI. In the present application, a base station receives a random access preamble sent by a terminal; the base station determines an RA-RNTI according to a time-frequency resource occupied by the random access preamble, and the time-frequency resource is a time-frequency resource of an orthogonal frequency division multiplexing (OFDM) symbol level; and the base station sends a random access response message, and the random access response message includes downlink control information allocated, by the base station, for the terminal, and the downlink control information is scrambled using the RA-RNTI. By means of the present application, an RA-RNTI can be determined during a random access process of an NR system.

Abstract: A light-emitting assembly includes a substrate and a plurality of light-emitting elements disposed on the substrate. The substrate includes a base material layer, a first electrical conductive layer and a protection layer in a sectional view. A thickness of the first electrical conductive layer is greater than a thickness of the protection layer. The thickness of the protection layer is greater than 0 ?m and less than 30 ?m. This disclosure can improve the non-uniform brightness issue (hotspots) or enhance the optical performance.

Abstract: Disclosed are a method and device for transmitting a positioning reference signal. The method includes a base station determining a time-frequency resource for sending a PRS according to configuration information of the PRS, mapping a PRS sequence to the time-frequency resource for sending the PRS, and sending the mapped PRS on the time-frequency resource for sending the PRS, wherein the configuration information of the PRS comprises PRS frequency domain resource information; the PRS frequency domain resource information comprises PRS resource element (RE) frequency shift information, and the PRS RE frequency shift information is correlated with a PRS OFDM symbol index value calculated from a PRS occasion.

Abstract: The present application provides a signal transmission method and device. The method include determining a third monitoring configuration information set of a first signal, and the monitoring opportunities corresponding to the third monitoring configuration information set are not more than the monitoring opportunities corresponding to at least one of a first monitoring configuration information set and a second monitoring configuration information set, the first monitoring configuration information set is a network-level monitoring configuration information set of the first signal, and the second monitoring configuration information set is a node-level monitoring configuration information set of the first signal; and monitoring the first signal according to the third monitoring configuration information set, to reduce the power consumption of a terminal for monitoring the first signal.

Abstract: Provided is a PCR primer pair, comprising: a first primer and a second primer, wherein the first primer comprises a first specific sequence and a first random sequence; the first specific sequence is located on 3? end of the first primer, and the first random sequence is located on 5? end of the first primer; the second primer comprises a second specific sequence and a second random sequence, the second specific sequence is located on 3? end of the second primer, and the second random sequence is located on 5? end of the second primer; moreover, the first specific sequence and the second specific sequence are an upstream primer and a downstream primer directed to a target sequence respectively, and the first random sequence and the second random sequence are inverse complementary.

Abstract: A methodology for integrated pump and well data for managing pump-lifted wells in hydrocarbon fields is provided. Rod pumps are widely applied to various types of wells to provide uplift and may play a dominant role in the flow of hydrocarbon from reservoir to surface. Assess the state of each well and its components (including the associated rod pump) is important for optimal well and reservoir management for fields with artificially lifted wells. As such, a methodology is disclosed that performs machine learning in order to generate a machine-learned model using pump card data and at least one of well data, reservoir data, flowline data, user input data, or data generated from analysis of one or more of the well data, the reservoir data, the flowline data, or the user input data.

Abstract: Disclosed is a light-emitting diode display module, including a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, a scan block, a voltage conversion block, a first sink block, and a second sink block. An operating voltage of the first light-emitting diode is lower than that of the second and third light-emitting diodes. The voltage conversion block provides an auxiliary power supply voltage based on a high power supply voltage and a low power supply voltage. The first light-emitting diode is coupled between the scan block and the first sink block receiving the high power supply voltage and the auxiliary power supply voltage. The second light-emitting diode and the third light-emitting diode are coupled between the scan block and the second sink block receiving the high power supply voltage and the low power supply voltage.

Abstract: An arcuate display device includes a plurality of display units each having has a plurality of pixels, a virtual axis, and a plurality of driving devices. Each pixel includes first, second, and third light-emitting elements respectively disposed at first, second, and third positions. The driving devices corresponding to the display units having the same minimum distance from the virtual axis have the same circuit layout design. The first, second, and third positions are sequentially arranged in a direction away from the virtual axis. Optical properties of the first light-emitting elements and the third light-emitting elements in at least a part of the pixels disposed at a first side of the virtual axis are respectively substantially the same as optical properties of the third light-emitting elements and the first light-emitting elements in at least a part of the pixels disposed at a second side of the virtual axis.

Abstract: Disclosed in the present invention are a method, equipment and an apparatus for indicator and downlink control channel detection, comprising: determining data which must be transmitted to a terminal in one or more transmission time intervals by means of a downlink control channel; a base station sending a command to the terminal, used to indicate that the terminal determine according to the command whether it is necessary to detect a downlink control channel in the one or more transmission time intervals. On the terminal, determining according to the command whether it is necessary to detect a downlink control channel in the one or more transmission time intervals. After using the present invention, when a base station has not scheduled a terminal, this objectively causes a terminal side to not have excess power consumption, and lowers terminal-side power consumption.

Abstract: Provided are a PCR primer pair and an application thereof.

Abstract: A device includes a substrate, a channel layer, a gate structure, a source/drain epitaxial structure, and a bottom dielectric structure. The channel layer is over the substrate. The gate structure is over the substrate and surrounds the channel layer. The source/drain epitaxial structure is over the substrate and is connected to the channel layer. The bottom dielectric structure is between the source/drain epitaxial structure and the substrate.

Abstract: Compositions and methods are provided for lamellar and defect reconstruction of corneal stromal tissue using biomaterials that form a defined hydrogel structure in situ, including interpenetrating (IPN) and semi-IPN hydrogels.

Abstract: An electronic device includes a substrate, a plurality of first retaining walls, a second retaining wall, and a light emitting element. The first retaining walls are arranged on the substrate. The second retaining wall is arranged on the substrate and disposed within one of the first retaining walls. The light emitting element is arranged on the substrate and disposed between the second retaining wall and one of the first retaining walls adjacent to the second retaining wall. In a cross section, there are a first distance between the light emitting element and the one of the first retaining walls, and a second distance between the light emitting element and the second retaining wall, wherein the second distance is smaller than the first distance.

Abstract: Provided is a PCR-free library construction and sequencing method. A PCR-free high-throughput sequencing method is provided, including the following steps: obtaining a DNA fragment of target size by performing or not performing, based on a size of a nucleic acid sample, fragmentation on the nucleic acid sample; performing end repair and an A-tailing reaction; ligating an adapter containing a barcode; obtaining DNA nanoballs by performing single-strand cyclization and rolling circle replication; and loading and sequencing.

Abstract: A single-hole ultrasonic detection device for continuous integrity and a rock entry depth of a concrete diaphragm wall and a method using the same are provided. the single-hole ultrasonic detection device includes an apparatus host, an ultrasonic transducer and an ultrasonic signal feedback device, and the apparatus host is respectively connected to the ultrasonic transducer and the ultrasonic signal feedback device via a corresponding one of signal lines, the apparatus host includes an ultrasonic transmitter and an ultrasonic signal collector, the ultrasonic transmitter is configured to generate ultrasonic waves and the ultrasonic waves are transmitted via the ultrasonic transducer, the ultrasonic transducer is configured to collect and recover a reflected wave of the ultrasonic waves, convert signals of the reflected wave of the ultrasonic waves into electric signals, and send the electric signals back into the apparatus host.

Abstract: The disclosure relates to an extraction device for extracting soluble favors from raw materials that are distributed within liquid. The extraction device includes a first container, a second container, a valve, and an air suction device. The second container is configured for storing the mixture of the raw materials and the liquid. The valve is connected to the second container and the first container. The air suction device is connected to the first container and configured to decrease the internal pressure of the first container to a predetermined value. When the internal pressure of the first container reaches the predetermined value, the valve is activated to connect the first container to the second container. The disclosure also relates to an extracting method for using the extraction device.