Abstract: Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for beam determination, multi-user transmission, and channel state variance information (CSVI) reporting in a holographic multiple input multiple output (MIMO) system.

Abstract: Methods, systems, and devices for wireless communications are described. A first device (e.g., a base station) may transmit reference signals to a second device (e.g., a user equipment (UE)) via transmitter antenna circles. The second device may receive and measure the reference signals via corresponding receiver antenna circles. Both the transmitter antenna circles and the in receiver antenna circles may include a center antenna circle and one or more peripheral antenna circles. The second device may transmit channel gain measurements to the first device based on measuring the reference signals. The first device may determine orbital angular momentum (OAM) modes, a power loading scheme, or both for the transmitter antenna circles based on the channel gain measurements. The first device may transmit OAM transmissions to the second device based on the determined OAM modes, the power loading scheme, or both. The OAM transmissions may have different OAM states, polarizations, or both.

Abstract: The present disclosure provides methods, drug combinations and kits for treating, ameliorating, reversing and/or preventing a Helicobacter pylori (H. pylori) infection in a patient in need thereof.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may detect interference, in a remote interference management (RIM) scenario, in a set of sub-bands of a plurality of sub-bands of a bandwidth portion. The base station may transmit, to identify the set of sub-bands in which interference is detected, a set of reference signals configured to indicate the set of sub-bands in which the interference is detected. Numerous other aspects are provided.

Abstract: The embodiments of the present disclosure provides a mask plate, including a rectangular area and two gripper areas which are respectively disposed on two opposite sides of the rectangular area, wherein each of the two gripper areas has a first side and a third side which are arranged opposite to each other, and a second side and a fourth side which are arranged opposite to each other, and the first side is disposed on a side of the rectangular area, and a minimum horizontal spacing between the second side and the fourth side is less than a side length of the first side.

Abstract: An optical module optimized for EMI shielding performance and electromagnetic shielding structure of the optical module includes a base, an upper cover, and an unlocking device connected by an unlocking handle and a movable unlocking piece; the base is butted and clamped with the upper cover to form a limiting groove for accommodating the unlocking latch on both sides of the movable unlocking piece, the unlocking latch is correspondingly slidably fitted in the limiting groove; the upper end of the unlocking latch on each side is provided with a first notch, which is used to make way for the base EMI lug boss set on the base, the lower end of the unlocking latch on each side is provided with a second notch, which is used to make way for the upper cover EMI lug boss set on the upper cover.

Abstract: A self-calibration detection device and a temperature demodulation method oriented to a fiber Raman temperature sensing system. The self-calibration detection device comprises a fiber Raman thermodetector, thermostatic baths, a multi-mode sensing fiber, and a multi-mode reflector. The fiber Raman thermodetector comprises a pulsed laser whose output end is connected to the input end of a WDM. Two output ends of the WDM are respectively connected to input ends of a first and second APDs. Output ends of the first and second APDs are respectively connected to input ends of a first and second LNAs. Output ends of the first and second LNAs are connected to the input end of a data acquisition card whose output end is connected with the input end of a computer. The temperature demodulation method can solve the problems of low temperature measuring accuracy, lower temperature measurement stability and low temperature measurement efficiency.

Abstract: A turbine blade includes a blade body, a division plate, a plurality of first protruding ridges, a plurality of second protruding ridges, a first jet hole group, and a second jet hole group. The blade body includes a suction-side wall surface and a pressure-side wall surface, which are provided with multiple film cooling holes. The stagnation region at the leading edge of the blade body is provided with multiple film cooling holes. The first and second jet hole groups are provided on the division plate. The first protruding ridges are provided on a suction-side inner wall surface, and the second ridges are provided on a pressure-side inner wall surface. An engine including the turbine blade is further provided.

Abstract: The present invention relates to a method for dissolving metals by photocatalysis. A metal-containing material to be dissolved is dispersed in a mixed solution of photocatalyst-containing cyanide and organic chloride; then, a photocatalyst is added; next, an oxygen-containing gas or a substance which is capable of generating oxygen is introduced; and irradiation is applied for a period of time to dissolve metals. Compared with the prior method, the present invention is advantageous in moderate reaction condition, energy conservation, environmental protection, low cost, and convenient operation, and is suitable for mass industrial treatment on metal dissolution.

Abstract: A device for integrated control of acid wastewater plugging and discharging of an abandoned mine includes an airtight wall, a central controller, a CO2 gas source, an agent bucket, a siphon pipe I and a liquid storage bucket are arranged on the outer side of the airtight wall, and a plurality of monitoring sensors are arranged in the inner side of the airtight wall, and the monitoring sensors are electrically connected to the central controller; and a flood discharge valve is arranged at the bottom of the airtight wall. The device is miniaturized and operates for a long time with low power consumption, thereby achieving long-term unattended operation and maintenance.

Abstract: A start method for a photovoltaic rapid shutdown system, an application apparatus and a system. In the method, an inverter system controls the voltage change of a corresponding direct current bus in a photovoltaic rapid shutdown system; and a photovoltaic module shutdown device performs determination according to a measured output voltage of itself, and controls itself to be turned on when the change characteristic of the voltage of the direct current bus connected to itself satisfies a preset turn-on condition. Therefore, merely by means of a self-contained voltage sampling device, the photovoltaic module shutdown device can determine whether a turn-on signal is received, without additionally providing a corresponding receiving device, thereby reducing hardware cost of the photovoltaic module shutdown device while realizing communication between the photovoltaic module shutdown device and the outside.

Abstract: Embodiments of this application disclose methods, systems, and apparatuses for information transmission. In an example method, a network device receives a first passive internet of things instruction, and sends the first passive internet of things instruction to a terminal. The first passive internet of things instruction is an instruction to be sent to a tag, and the terminal is a helper of the tag.

Abstract: A data migration method and an apparatus are provided. The method is as follows: sending, by a first storage system, a location update request to a location server, where the location update request is used to indicate the location server to update location information of a first bucket from being located in a second storage system to being located in the first storage system; migrating data in a first bucket from the second storage system; receiving a data access request, where the data access request is used to access the data in the first bucket; and determining based on a type of the data access request and a migration status of the data, that the first storage system or the second storage system processes the data access request.

Abstract: The present application discloses a preventive maintenance method for a chamber of a metal etching machine. An optimized burning cleaning recipe is added before the chamber is opened, and metal substances remaining on the surface of an electrostatic chuck are removed by adopting a cleaning/pumping down multi-step alternate method. Before the chamber is opened for preventive maintenance, the phenomenon of metal particles remaining on the surface of the electrostatic chuck can be significantly improved, thus solving the downtime problem caused by abnormal backside helium and ensuring the stability of mass production.

Abstract: The present invention relates to the field of medical biology, and discloses a single domain antibody and derivative proteins thereof against CTLA4. In particular, the present invention discloses a CTLA4 binding protein and the use thereof, especially the use for treating and/or preventing CTLA4 relevant diseases such as tumor.

Abstract: A compound represented by formula (III) or a pharmaceutically acceptable salt thereof, and disclosed is an application thereof in the preparation of a medication for treating diseases related to a CRBN receptor.

Abstract: The present disclosure provides a gallium nitride substrate, where the gallium nitride substrate has a surface having a diameter not less than 50 mm; nine circular regions having a diameter not greater than 1 mm are taken on a surface of the gallium nitride substrate; threading dislocation densities and threading dislocation tilt angles are calculated at the nine circular regions using a multi-photon excitation photoluminescence spectrum; an average value of products of the threading dislocation densities in the nine circular regions and tangent values of the threading dislocation tilt angles is not greater than 1E6 cm?2; and a quotient of a difference between a maximum value and a minimum value of the products of the threading dislocation densities in the nine circular regions and the tangent values of the threading dislocation tilt angles divided by the average value is not greater than 50%.

Abstract: The present invention discloses a soil-structure improving bio-organic fertilizer and a preparation method thereof, and belongs to the technical field of biological fertilizers. The preparation method of the bio-organic fertilizer of the present invention includes the following steps: S1: aerobically fermenting cow dung-based organic materials to prepare a solid-state fermentation medium; S2: inoculating Bacillus subtilis fermentation broth and silicate bacteria fermentation broth into the solid-state fermentation medium for solid-state fermentation until the end of fermentation; and S3: after the fermentation is finished, extruding and granulating or directly sieving to prepare the soil-structure improving bio-organic fertilizer.

Abstract: A compound represented by formula (III) or a pharmaceutically acceptable salt thereof, and disclosed is an application thereof in the preparation of a medication for treating diseases related to a CRBN receptor.

Abstract: A method for developing an epoxy resin impregnated glass fiber Direct Current (DC) bushing, comprising: according to length parameters of each layer of capacitive screen or resistive screen designed depending on insulation requirements, selecting bushing design parameters, determining a winding machine program according to the bushing design parameters, and winding a core body according to the winding machine program, wherein during the core body winding process, the core body begins to be initially cured; after the core body is wound, curing the core body by an oven according to a preset oven temperature and duration; machining the cured core body according to a preset core body design drawing; after the inner wall of a flange is polished and cleaned and is heated and pretreated by the oven, injecting glue at the position of a glue injection hole of the flange for gluing the core body and the flange; sequentially assembling a collector ring, a hollow composite insulator, and a voltage-equalizing sealing cove