Abstract: The present disclosure belongs to the technical field of communications, and provides a low-power-consumption device interconnection system and method, and a storage medium. The low-power-consumption device interconnection system includes a gateway and a terminal. The terminal is configured to send a first data packet to the gateway, receive a packet loss rate fed back from the gateway, and judge whether the packet loss rate is greater than the first preset threshold; and determine, based on a judgment result and a current transmitting power for sending the first data packet, a transmitting power for sending a next first data packet. The gateway is configured to receive and count first data packets, and, each time a count result reaches a second preset threshold, calculate a packet loss rate and reset the count result; and send the packet loss rate to the terminal.

Abstract: While an external device is not in an active conductive communication session with one or more IMD(s), a test vector is selected and used to search for advertisement sequence(s) transmitted by the IMD(s) during an OOS search window. If the advertisement sequence(s) is/are not detected using the test vector during the OOS search window, another electrode combination is selected and used as the test vector. In response the advertisement sequence(s) being detected, an active conductive communication session is established with the IMD(s) and a respective score is determined. Then different combinations of other ones of the external electrodes are used as the test vector during an accelerated search window having a duration shorter than the OOS search window, and a respective score is determined for each of the other test vectors. Based on the scores, a preferred vector is selected and used to perform further conductive communication with the IMD(s).

Abstract: A stacking apparatus configured to stack workpieces into a neat workpiece queue, where the workpiece queue includes a plurality of workpieces. The stacking apparatus includes: a base bracket; a stacking table for carrying at least one workpiece, where the stacking table is arranged on the base bracket; and at least two shapers, where the shapers act in pairs to perform an alignment operation for aligning the workpieces on the stacking table, paired shapers are configured in such a way that at least one of the actions enables the paired shapers to approach or move away from each other along a first direction above the stacking table, and the alignment operation is performed through the approaching action of the shapers, to obtain the neat workpiece queue through stacking.

Abstract: Provided are a channel information feedback method, an electronic device, and a storage medium. The method includes determining a measurement result of channel state information according to a measured reference signal; determining a codebook, where the codebook includes at least one codeword; determining a codeword W within the codebook according to the measurement result; and feeding back indication information of the codeword W. The codeword W is a matrix that has N rows and r columns and includes r column vectors V1, V2, . . . , Vr, where N>1, and r?1. The i-th column vector Vi of the codeword W is constructed according to the following basis vector model u: u = [ ? 1 ? v 1 ? 2 ? v 2 ? ? K ? v K ] , where the basis vector model u includes K sub-vectors, the length of the k-th sub-vector ?k is Nk, and ?k is a sub-vector coefficient.

Abstract: A method for separating and purifying high-purity quartz sand from rock series being diorite, quartz diorite, granodiorite and granite, comprising: S1: crushing, grinding and filtering samples of magmatics; S2: conducting magnetic separation of different grades on the samples; S3: conducting continuous reverse flotation on the coarse sands for a plurality of times; S4: scrubbing the quartz sand ores; S5: regrinding, filtering and dressing scrubbed quartz sand ores by magnetic separation of different grades; S6: dressing the fine quartz sands by continuous reverse flotation for a plurality of times.

Abstract: Disclosed are a crystal form of a pyridinopyrimidinone compound of formula I, a pharmaceutically acceptable salt thereof, and a crystal form of the pharmaceutically acceptable salt thereof, which have significant inhibitory effects on the binding of RAS to SOS1, have ideal physicochemical properties, such as relatively high stability, solubility and bioavailability, and relatively low hygroscopicity, and are suitable for preparing ideal pharmaceutical formulations.

Abstract: The present utility model discloses a connector for preventing signal interference, comprising: a connector housing; a plurality of groups of wires arranged in the connector housing, wherein any group of the wires comprise a signal wire and a ground wire, and the ground wires in the plurality of groups of the wires are connected in series; and a metal partition plate, wherein a plurality of spacers are arranged on the metal partition plate, the spacers are positioned on both sides of the wires to separate two adjacent groups of the wires, and the spacers are connected to the ground wires. The present utility model solves the problem of signal interference caused by the absence of an isolation structure between wires in the existing connector.

Abstract: A Fresnel lens in a lens body, the lens body is provided with a light incident surface and a light exit surface opposite to each other along a first direction, and the light exit surfaces are adjacently arranged in a second direction perpendicular to the first direction. There are several protruding teeth, and the protruding teeth are formed by an effective surface and an ineffective surface, and the ineffective surface is inclined at an acute angle relative to the first direction. The invention makes the light passing through the lens body reach the effective surface as much as possible, thereby reducing stray light and enhancing light efficiency.

Abstract: An apparatus comprises a fiber input, the fiber input comprising a plurality of input fiber cores receiving a plurality of input optical signals. The apparatus also comprises an optical signal manipulation device that is one of a fiber mode shuffler, a fiber coupler, a power splitter, or a 90-degree optical hybrid. The optical signal manipulation device comprises an input aperture held in spaced relation to the fiber input, an output aperture, and a plurality of metasurfaces that manipulate phase profiles of the plurality of input optical signals to generate a plurality of output optical signals having a different spatial arrangement than the input optical signal. A fiber output is held in spaced relation to the output aperture such that fiber cores of the fiber output receive the plurality of output optical signals.

Abstract: A display device and a mobile terminal are provided. The display device includes a functional addition area and a display area. The functional addition area includes a functional area and a first transition area located between the display area and the functional area. The display device includes a display panel and a cover plate disposed on the display panel. The cover plate includes a cover plate main body and a light-shielding layer. The cover plate main body has a first groove. The first groove is located in the first transition area and surrounds the functional area, and the light-shielding layer is filled in the first groove.

Abstract: Provided is an anti-FGFR2IIIb antibody. Specifically, the anti-FGFR2IIIb antibody can specifically bind to FGFR2IIIb, has high affinity and selectivity, and can efficiently block the binding of FGFR2IIIb to a ligand FGF1, FGF7 or FGF10 thereof. In addition, the antibody can also mediate, by means of an ADCC action, specific killing of FGFR2IIIb overexpressed cancer cells by immune cells. The antibody has excellent binding activity to FGFR2IIIb from multiple species origins. In vivo experiments show that the antibody has a significant anti-tumor effect on an FGFR2IIIb expressed gastric cancer-bearing mouse model, and has an application prospect in the field of tumor treatment.

Abstract: An electrical connection device includes a board-end connector and a cable-end connector which is capable of being mated with the board-end connector. The board-end connector includes two terminal modules. The terminal module includes a plurality of plate-shaped signal terminals and a plurality of plate-shaped ground terminals. The plate-shaped ground terminal has a second plate-shaped connecting portion, a second plate-body portion, a plate-shaped elastic contact end, two plate-shaped shielding portions which are respectively connected at two sides of the second plate-shaped connecting portion, and two plate-shaped tail portions which respectively extend downwardly from the two plate-shaped shielding portions.

Abstract: A method of forming a vertical cavity surface emitting laser (VCSEL) device using a multiphase growth sequence includes forming a first mirror over a substrate; forming an active region (e.g., a dilute nitride active region) over the first mirror; forming an oxidation aperture (OA) layer over the active region; forming a spacer on a surface of the OA layer; and forming a second mirror over the spacer. The active region is formed using a molecular beam epitaxy (MBE) process during an MBE phase of the multiphase growth sequence and the second mirror is formed using a metal-organic chemical vapor deposition (MOCVD) process during an MOCVD phase of the multiphase growth sequence.

Abstract: The present disclosure provides a chlorosulfonated polypropylene carbonate having a structure represented by Formula I, and the production method and use thereof in the fields of binders, stickers, coatings, and others. The present disclosure introduces a highly active chlorosulfonyl group into the molecular chain of polypropylene carbonate, the molecular weight of the final product is decreased at a different degree, and the interface compatibility of the polypropylene carbonate with various substrates can be effectively adjusted and controlled, so that the state and viscosity of the product are modified. At the same time, the chlorosulfonated polypropylene carbonate is also a fully biodegradable material.

Abstract: A circuit for preventing current backflow includes: a signal connection terminal, a power input terminal, an internal power supply terminal, an electrostatic protection circuit, a first switch element and a cut-off control circuit. The electrostatic protection circuit is coupled to the signal connection terminal and the internal power supply terminal. The first switch element is coupled between the power input terminal and the internal power supply terminal. The cut-off control circuit is coupled to the signal connection terminal, the power input terminal and the first switch element. The cut-off control circuit controls the switching of the first switch element according to a voltage of the signal connection terminal and a voltage of the power input terminal.

Abstract: Methods, apparatus, and systems that relate to channel state information reporting, particularly precoding design and reporting, for extremely large-scale massive multiple-input multiple-output (XL-MIMO) systems are disclosed. In one example aspect, a method for wireless communication includes receiving a reference signal from a transmitting device and determining a precoding matrix based on the reference signal, where a structure of the precoding matrix is based on one or more vectors. The method also includes transmitting information about the precoding matrix to the transmitting device. The precoding matrix represents feedback information for an array of antenna ports of the reference signal. Each element of a vector among the one or more vectors corresponds to one or more antenna ports of the reference signal. The elements in the vector being zero indicates that the reference signal from a sub-set of the array of antenna ports are at least partially invisible to the receiving device.

Abstract: A ramelteon sublingual film and a preparation method therefor. The sublingual film at least includes ramelteon, a film forming material, and one or more of a plasticizer, a disintegrating agent, a flavoring agent or a sweetener, and a stabilizer, wherein the ramelteon is in an amorphous state. The ramelteon is developed into a sublingual film, such that the ramelteon can be administrated through sublingual mucosa. The ramelteon is present in an amorphous state and is thus easier to absorb; the particle size of the ramelteon in the film is molecular-level dispersion, such that the ramelteon can be absorbed better, drugs are not easy to gather and recrystallize, the stability is better, and the solubility is good; the ramelteon can be completely dissolved in water within 1 min and rapidly absorbed by oral mucosa, thereby achieving the objective of rapid onset of action; absolute bioavailability is greater than 30%.

Abstract: The present application discloses a display panel. A thickening layer includes a first portion. An orthographic projection of a first backplate on a plane of a bonding substrate is a first projection. An orthographic projection of a circuit board on the plane of the bonding substrate is a second projection. A terminal portion includes a first region and a second region. The first region is an overlapping region of the first projection and the second projection. The first portion is disposed in the second region and extends from a junction of the first region and the second region to a side away from the first region.