Abstract: The present invention provides a refrigerator, comprising a cabinet, a door and a hinge body, wherein a positioning shaft and a guiding shaft are provided on the hinge body, and a positioning groove and a guiding groove are provided on the door; the door of the refrigerator according to the present invention may be moved by a distance in a direction away from a pivoting side when being opened, thereby avoiding inconvenience of opening the door due to the protrusion of the side wall of the door.

Abstract: The invention relates to the technical field of oil and gas field development, in particular to a staged multi-cluster fracturing sliding sleeve system and method based on smart key label. The system includes at least one multi-cluster sliding correspondingly placed in each fracturing stage, an end sliding sleeve, and a smart key label. The method includes: step S1, performing fracturing stage by stage from a first stage to a last stage, placing the smart key label through a wellhead and pumping the smart key label to the target fracturing stage; step S2, opening the multi-cluster sliding sleeves of the current fracturing stage one by one through the smart key label, and finally blocking the smart key label in the end sliding sleeve when the multi-cluster sliding sleeve and the end sliding sleeve of the current fracturing stage are opened; and step S3, repeating the steps S1 and S2 until the fracturing operations of all the stages are completed.

Abstract: Disclosed are a method for controlling a variable refrigerant flow (VRF) air conditioner, a VRF air conditioner, and a computer-readable storage medium. The method includes: obtaining a target indoor unit in a warming stage among started indoor units; determining a target superheat degree according to a working condition parameter of the target indoor unit; and adjusting an operating parameter of an electronic expansion valve of the target indoor unit according to the target superheat degree.

Abstract: A semiconductor device includes an active layer having a first side and a second side, a bit line layer having a first bit line sub-layer disposed on the first side and a second bit line sub-layer disposed on the second side, and capacitor structures. The active layer includes active units arranged in an array and disposed at intervals. The first and second bit line sub-layers are connected with the active units. The capacitor structures are disposed on the first side and the second side of the active layer and connected with the active units. By disposing the bit lines and the capacitor structures on two opposite sides of two ends of the active units, the semiconductor device can have larger spaces on the two sides of the ends of the active units to accommodate the capacitor structures, as compared with a semiconductor device with the same number of capacitor structures.

Abstract: An anechoic chamber and a construction method thereof are provided, the anechoic chamber includes a top surface, being a polygon; trapezoid surfaces, corresponding to edges of top surface, upper edge lengths of trapezoid surface being equal to edge lengths of top surface, trapezoid surfaces being connected to edges of top surface through the upper edges, the trapezoid surfaces being sequentially connected along a circumferential direction of top surface, and being at angle to the top surface; rectangular surfaces, corresponding to the trapezoid surfaces, upper edge lengths of rectangular surface being equal to lower edge lengths of trapezoid surface, rectangular surfaces being connected to the trapezoid surfaces through the upper edges, the rectangular surfaces being sequentially connected along a circumferential direction of the lower edges of trapezoid surfaces, and being perpendicular to the top surface; and an absorbing material, disposed on the top surface, the trapezoid surfaces and the rectangular surf

Abstract: The present disclosure discloses a method for treating a tantalum metal thin film, a quantum device, and a quantum chip. The method includes: preparing an initial tantalum metal thin film; and increasing, after cooling the initial tantalum metal thin film to a predetermined extremely low temperature, the temperature from the predetermined extremely low temperature to normal temperature to obtain a target tantalum metal thin film. The present disclosure solves the technical problem in the related technology: a post-treatment technology for a tantalum metal thin film after preparation of the tantalum metal thin film has a limited positive effect on reducing the energy dissipation of a tantalum-based superconducting quantum device.

Abstract: Certain aspects of the present disclosure provide techniques for sounding and precoding uplink transmissions using one or more machine learning models. An example method generally includes generating a sounding reference signal (SRS) using an SRS deep neural network (DNN); transmitting, to a network entity, the generated SRS in one or more resource elements (REs); receiving, from the network entity, information identifying a precoding matrix to use for uplink transmissions on a shared channel; precoding uplink transmissions based on the identified precoding matrix; and transmitting, to the network entity, the precoded uplink transmissions on the shared channel.

Abstract: A method for determining a reference signal sequence, a terminal device, and a network device, the including receiving, by a terminal device, first indication information sent by a network device, determining, by the terminal device, a target resource based on the first indication information, determining, by the terminal device, a reference signal sequence based on parameters of a first bandwidth and parameters of a second bandwidth, and sending or receiving, by the terminal device, the reference signal sequence on the target resource.

Abstract: The present disclosure relates to a process and a device for producing vinyl acetate by an ethylene process. By additionally arranging an ethylene recovery membrane assembly in a vinyl acetate synthesis section, the content of inert components such as nitrogen in a circulating system is controlled, ethylene gas is recovered from non-condensable gas, and a recovery rate of the ethylene reaches 58% or above. By adding sideline extraction at a refined VAC tower in a vinyl acetate refining section, a vinyl acetate product with purity higher than 99.98% is obtained, a mass fraction of acetic acid is less than or equal to 20 ppm, a mass fraction of acetaldehyde is less than or equal to 20 ppm, and a mass fraction of water is less than or equal to 100 ppm. In synthesis and refining processes of the vinyl acetate, a cooling method is adopted.

Abstract: Provided is a light delivery device for delivering light to a tissue of a patient comprising a microarray of tissue penetrating members, each tissue penetrating member having a distal end and a proximal end and configured to be inserted into the tissue, wherein the tissue penetrating members are at least partially optically transparent to provide optical transmission through a surface that extends between the distal and proximal ends of each tissue penetrating member; a transparent substrate having a top surface and a bottom surface, wherein the bottom surface supports the tissue penetrating members; a plurality of optical sources supported by the top surface of the substrate and in optical communication with the microarray of tissue penetrating members; the plurality of optical sources is configured to operably emit light; and an encapsulation layer disposed over the microarray of tissue penetrating members.

Abstract: Presented are systems, methods, apparatuses, or computer-readable media for configuring reference signaling. A wireless communication device may determine a set of resources. A number of resources in the set may be equal to or more than one and the set satisfies a character. Each of the resources may be associated with a respective value of information.

Abstract: A multipath aggregation scheduling method and an electronic device provide for configuring transmission sequences of network packets on different paths when there are a plurality of paths between a client and a service end. This enables a network packet sent later on any of the plurality of paths to be sent first on at least one other path, thereby increasing transmission rate of the network.

Abstract: In the technical field of display devices, there is a problem of low efficiency in image appearance inspection during the processing process of a display panel. In view of this, provided is an image acquisition system, comprising: a control device, an object loading device and an image acquisition apparatus. The control device is used for obtaining a target value of displacement between the object loading apparatus and the image acquisition apparatus according to an image signal, generating a control command, which carries the target displacement value, and then sending the control command to at least one of the object loading device and the image acquisition apparatus; and at least one of the object loading apparatus and the image acquisition apparatus moves according to the control command, until the definition of the image signal received by the control device in real time is greater than a preset definition threshold value.

Abstract: Provided are a GLP-1 receptor agonist compound and a composition and use thereof. The compound can be used for treating or preventing GLP-1 receptor-mediated diseases or disorders and related diseases or disorders.

Abstract: Provided is a method and a system for transmitting information. The method is applicable to a processing device, and includes: acquiring a target image of a display device; determining a target area in the target image; and sending display information to the display device, wherein the display information includes information of the target area; wherein the target area is a partial pixel area of the target image, the target area includes pixels with transparencies less than 1, and transparencies of the pixels outside the target area in the target image are all 1.

Abstract: A system and a method for generating an arbitrary waveform of a microwave photon based on optical frequency tuning are provided. The system includes an optical frequency comb, a first optical distribution unit, a first photoelectric conversion unit, a frequency-shift drive circuit, and an optical frequency doubling/dividing unit, an optical frequency-shift combining optical circuit, a second photoelectric conversion unit, and a second electrical processing circuit. The optical frequency comb is used as the frequency source, with the features of high stability and low phase noise of the optical frequency comb, the arbitrary waveforms of microwave photons can be generated through optical frequency tuning control; the performance of the optical frequency comb is three orders of magnitude or more higher than that of the common microwave frequency sources, therefore, the waveforms with high-frequency, ultra-wideband, low phase noise, and high stability can be generated.

Abstract: A semiconductor device and a method for manufacturing the same are provided in this disclosure. The semiconductor device includes a semiconductor heterostructure layer. The semiconductor heterostructure layer includes alternating first semiconductor material layers and second semiconductor material layers. Two-dimensional electron gas (2DEG) may be generated between each first semiconductor material layer and adjacent second semiconductor material layer. A conductive structure, including a plurality of conductive fingers extends from a surface of the semiconductor heterostructure layer into the semiconductor heterostructure layer. The plurality of conductive fingers are arranged in a direction substantially parallel to the surface. The lengths of the plurality of conductive fingers progressively increase in that direction so that an end portion of each conductive finger is respectively positioned in a different first semiconductor material layer and is in contact with the 2DEG.

Abstract: Provided herein are systems and methods for enhancement of polyphenols, such as chlorogenic acids, chicoric acid, anthocyanins, and water-soluble quercetin derivatives, production in red lettuces. Also provided are transgenic lettuce for the production of polyphenols. Also provided are parts of such transgenic lettuces, such as seeds leaves, and extracts. The disclosure also provides methods of using the new lettuces and parts thereof for protection against viral/bacterial infection (i.e., by inhibiting activities of COVID-19 virus/enzymes) diabetes, cardiovascular diseases, memory and eyesight loss, inflammation, and cancer.

Abstract: Embodiments of a system, device and method for configuring reference signaling are disclosed. In some embodiments, a method includes determining, by a wireless communication device, N sets of parameters, determining, by the wireless communication device according to a layer 1 measurement, whether a condition of an event is satisfied, and identifying, by the wireless communication device according to the determination, M sets of parameters from the N sets of parameters. In some embodiments, N is a positive integer value. In some embodiments, M is smaller than or equal to N.

Abstract: Provided is a gene for efficiently expressing hyaluronic acid hydrolase. A nucleotide sequence of the gene is represented by SEQ ID NO: 4. By truncating a segment of a signal peptide sequence at the N-terminus of a full-length hyaluronic acid hydrolase gene, the Pichia pastoris engineering strain of high level expression genetic engineering hyaluronic acid hydrolase is constructed. The enzyme activity of the hyaluronic acid hydrolase in a fermentation broth obtained by high-density fermentation using the constructed Pichia pastoris engineering strain is up to 4.7×105 U/mL.