Abstract: The present application discloses a method, system, and computer system for providing a dataframe as a service. The method includes (a) receiving, from a client system, one or more hints identifying parameters for source data; (b) executing a plan for a source dataframe including determining whether accessing the source data for the source dataframe is permitted based at least in part on one or more security policies, wherein the plan is based at least in part on the one or more hints; (c) receiving from the client system a business logic pertaining to a transformation to be applied to the source dataframe; and (d) providing to the client system information pertaining to an execution result obtained based at least in part on the business logic.

Abstract: In some implementations, a device may identify a network node that supports a first radio access technology (RAT), wherein the network node is associated with sessions with user equipments (UEs). The device may calculate a percentage of traffic from the sessions that is associated with the first RAT and not a second RAT. The device may determine that the network node is associated with a score based on the percentage of traffic associated with the first RAT not satisfying a threshold. The device may collect, based on the network node being associated with the score, device data associated with the UEs. The device may determine a network issue associated with the network node based on the device data. The device may determine a root cause for the network issue. The server may transmit an indication of the root cause.

Abstract: The present application discloses a method, system, and computer system for providing a dataframe as a service. The method includes (a) receiving, from a client system, one or more hints identifying parameters for source data; (b) executing a plan for a source dataframe including determining whether accessing the source data for the source dataframe is permitted based at least in part on one or more security policies, wherein the plan is based at least in part on the one or more hints; (c) receiving from the client system a business logic pertaining to a transformation to be applied to the source dataframe; and (d) providing to the client system information pertaining to an execution result obtained based at least in part on the business logic.

Abstract: A device may receive a query, and may generate an embedding based on the query. The device may determine context for the query based on the embedding and historical data, and may select, based on the context, a base LLM from a plurality of base LLMs. The device may fine-tune the base LLM with LLM fine-tuning data to generate a fine-tuned LLM, and may process the embedding, with the fine-tuned LLM, to identify tasks associated with the query. The device may determine recommended tasks based on the tasks, and may select a task LLM from a plurality of task LLMs. The device may process the tasks and the recommended tasks, with the task LLM, to determine final tasks, and may cause the final tasks to be executed. The device may perform one or more actions based on the final tasks.

Abstract: Devices and methods for using separate advertisement streams in a single beacon device are disclosed herein. An example beacon device includes at least one processor, a radio transceiver, and a memory. The memory may store instructions that, when executed by the at least one processor, cause the beacon device to receive a set of beacon information captured during a scan period. The instructions may further cause the beacon device to transmit a captured beacon stream (CBS) that includes beacon information from the set of beacon information. The instructions may further cause the beacon device to transmit, to a mobile device, a waypoint beacon stream (WBS) including a protocol data unit (PDU) data payload. The PDU data payload may encode a media access control (MAC) identifier adjacent to a type field indicative of a format for heartbeat data encoded in the PDU data payload.

Abstract: Radio transceiver devices and methods are disclosed herein. An example transceiver device includes at least one processor, a plurality of radio transceivers, and a memory. The memory may store instructions that, when executed by the at least one processor, cause the transceiver device to cause the plurality of radio transceivers to scan over each of a plurality of advertisement channels during a first period; and during a second period of the scan period, cause the plurality of radio transceivers to scan over each of the plurality of advertisement channels. The instruction may further cause the transceiver device to receive a beacon data packet including beacon information that is associated with a beacon device disposed proximate to the transceiver device, and wherein the beacon data packet includes beacon information captured during the first period and the second period.

Abstract: In some implementations, a device may identify a network node that supports a first radio access technology (RAT), wherein the network node is associated with sessions with user equipments (UEs). The device may calculate a percentage of traffic from the sessions that is associated with the first RAT and not a second RAT. The device may determine that the network node is associated with a score based on the percentage of traffic associated with the first RAT not satisfying a threshold. The device may collect, based on the network node being associated with the score, device data associated with the UEs. The device may determine a network issue associated with the network node based on the device data. The device may determine a root cause for the network issue. The server may transmit an indication of the root cause.

Abstract: A system described herein may provide a technique for using modeling techniques to identify events, trends, etc. in a set of data, such as streaming video or audio content. The system may perform lightweight pre-processing operations on a different set of data, such as object position data, to identify timeframes at which an event may potentially have occurred, and the modeling techniques may be performed at portions of the streaming content that correspond to such timeframes. The system may forgo performing such modeling techniques at other portions of the streaming content, thus conserving processing resources.

Abstract: This invention pertains to corrosion inhibition, specifically involving a Platanus acerifolia leaf extract inhibitor. The extract serves to inhibit corrosion of copper in sulfuric acid or steel in hydrochloric acid. In sulfuric acid, inhibition efficiency reaches 96.7%, while in hydrochloric acid, it achieves 93.1% efficiency on Q235 steel. This Platanus acerifolia leaf extract inhibitor exhibits robust corrosion inhibition on copper in sulfuric acid and steel in hydrochloric acid, offering comprehensive anti-corrosion performance suitable for various materials.

Abstract: Radio transceiver devices and methods are disclosed herein. An example transceiver device includes at least one processor, a plurality of radio transceivers, and a memory. The memory may store instructions that, when executed by the at least one processor, cause the transceiver device to cause the plurality of radio transceivers to scan over each of a plurality of advertisement channels during a first period; and during a second period of the scan period, cause the plurality of radio transceivers to scan over each of the plurality of advertisement channels. The instruction may further cause the transceiver device to receive a beacon data packet including beacon information that is associated with a beacon device disposed proximate to the transceiver device, and wherein the beacon data packet includes beacon information captured during the first period and the second period.

Abstract: A cavity-type seed-metering device with a magnetic seed protection assembly is provided, which includes a seed-metering device shell, a seeding plate and a seeding shaft. The seeding plate rotatably mounted in the seed-metering device shell through the seeding shaft. A seeding channel is formed in the seed-metering device shell. Multiple cavities are formed in the seeding plate. Seed filling orifices connected with the cavities are formed in one side of the seeding plate. Seeding outlets connected with the cavities are formed in a circumferential surface of the seeding plate. A magnetic hinge is rotatably connected with the seeding outlet. A notched magnetic ring is fixed in the seed-metering device shell. The magnetic hinge can close the seeding outlet under a magnetic force of the notched magnetic ring. A magnetic block that can attract the magnetic hinge for opening the seeding outlets is arranged in the seeding channel.

Abstract: Radio transceiver devices and methods are disclosed herein. An example transceiver device includes at least one processor, a plurality of radio transceivers, and a memory. The memory may store instructions that, when executed by the at least one processor, cause the transceiver device to cause the plurality of radio transceivers to scan over each of a plurality of advertisement channels during a first period; and during a second period of the scan period, cause the plurality of radio transceivers to scan over each of the plurality of advertisement channels. The instruction may further cause the transceiver device to receive a beacon data packet including beacon information that is associated with a beacon device disposed proximate to the transceiver device, and wherein the beacon data packet includes beacon information captured during the first period and the second period.

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: Devices and methods for using separate advertisement streams in a single beacon device are disclosed herein. An example beacon device includes at least one processor, a radio transceiver, and a memory. The memory may store instructions that, when executed by the at least one processor, cause the beacon device to receive a set of beacon information captured during a scan period. The instructions may further cause the beacon device to transmit a captured beacon stream (CBS) that includes beacon information from the set of beacon information. The instructions may further cause the beacon device to transmit, to a mobile device, a waypoint beacon stream (WBS) including a protocol data unit (PDU) data payload. The PDU data payload may encode a media access control (MAC) identifier adjacent to a type field indicative of a format for heartbeat data encoded in the PDU data payload.

Abstract: A wireless communication device may determine that a channel is to be used to transmit an advertisement. The wireless communication device may determine a channel-specific gain associated with transmitting the advertisement via the channel. The wireless communication device may generate the advertisement to include information identifying a channel identifier of the channel and the channel-specific gain. The wireless communication device may transmit the advertisement for locationing based on a received signal strength indicator (RSSI) of the advertisement.

Abstract: A system described herein may provide a technique for using modeling techniques to identify events, trends, etc. in a set of data, such as streaming video or audio content. The system may perform lightweight pre-processing operations on a different set of data, such as object position data, to identify timeframes at which an event may potentially have occurred, and the modeling techniques may be performed at portions of the streaming content that correspond to such timeframes. The system may forgo performing such modeling techniques at other portions of the streaming content, thus conserving processing resources.

Abstract: A virtual photon catalysis apparatus and a method for catalytic treatment using the virtual photon catalysis apparatus. The virtual photon catalysis apparatus includes a housing; and a catalysis unit built in the housing, including a rectangular magnet group, a magnetic force enhancing post, and a magnetically permeable shoe, where an SS pole and an NN pole of a rectangular magnet in the rectangular magnet group form a magnetic field line of a corresponding magnetic field center, the magnetic force enhancing post is used for enhancing a magnetic force from the magnetic field center to a corresponding magnetic field edge, and the magnetically permeable shoe transfers and centralizes the magnetic field from the magnetic field center to the corresponding magnetic field edge, where an angle between junctions between two ends of the magnetically permeable shoe and a central wall of the magnetically permeable shoe is greater than 90 degrees.

Abstract: An AC-DC type uninterruptible power supply includes a rectifying unit, a battery control unit and a switching unit, wherein the rectifying unit is used for rectifying an AC from a power network and outputting a DC; a battery is controlled by the battery control unit to be charged or discharged and outputs a DC during interruption of the AC from the power network; and the switching unit is used for selectively outputting the DC from the rectifying unit or the DC from the battery. Inversion of the UPS and double rectification of a load are omitted.

Abstract: A method and circuit for controlling a multi-use horn by a bus are disclosed. The circuit comprises a bus signal receiving and transmitting unit used for receiving and transmitting a horn control instruction from a vehicle-mounted computer controller by the bus, a control unit used for generating a horn sounding signal adapting to a current scene according to the horn control instruction, and a horn sounding unit used for making sounds according to the horn sounding signal. By adoption of the method and circuit, the horn is connected to the vehicle-mounted computer controller by the bus and is controlled by the vehicle-mounted computer controller to make sounds, and thus, sound requirements for various horns for different uses on vehicles and engineering machines are met.

Abstract: A method in a computing device includes: via a short-range interface of the computing device, detecting a plurality of beacons emitted by another computing device, each beacon containing an identifier of the other computing device; obtaining respective proximity indicators corresponding to the beacons; generating a first set of aggregated attributes from the proximity indicators; storing the first set of aggregated attributes in association with the identifier of the other computing device; and transmitting the first set of aggregated attributes to a server configured to detect physical proximity between the computing device and the other computing device based on the first set of aggregated attributes.