Abstract: The present invention relates to the technical field of environmental monitoring, and particularly relates to a method for monitoring a forestry microenvironment, comprising the following steps: S1: moving a forestry detection vehicle to a monitoring position; S2: inserting the sampling device on the forestry detection vehicle into the soil at a corresponding depth; S3: disconnecting the sampled soil, and withdrawing the sampling device from the forestry detection vehicle to complete the sampling process; S4: weighing the above soil sample quantitatively, and detecting the soil standard solution through a detection instrument. The sampling device in S1 comprises a rack; an outer sleeve is arranged in the rack; and a sampling mechanism is arranged in the outer sleeve.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive at least one first synchronization signal within a first set of synchronization signals associated with a first network node. The UE may further receive at least one second synchronization signal within at least one second set of synchronization signals associated with at least one second network node. The at least one second set of synchronization signals is multiplexed with the first set of synchronization signals. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communication are described. A communication device, such as a user equipment (UE) may receive a configuration (for example, via control signaling) of a set of reconfigurable intelligent surfaces (RISs). The UE may select a primary RIS for bidirectional wireless communication (for example, uplink and downlink) and one or more secondary RISs for unidirectional wireless communication (for example, downlink) based on the configuration. The UE may use the one or more secondary RISs to enable higher throughput and extended coverage in the wireless communication system, for example, for downlink. The UE may communicate with the base station using the primary RIS, or the secondary RIS, or both.

Abstract: A method for operating a graph database, including receiving, by a computer system, a query to a particular graph database, the query identifying a plurality of vertices of the particular graph database. The method further includes performing, by the computer system, hash operations on two or more of the plurality of vertices to generate respective hash values and dividing, using the respective hash values, the query into a plurality of sub-queries, each corresponding to a subset of the plurality of vertices. The method also includes sending, by the computer system, ones of the plurality of sub-queries to a plurality of database repositories for the particular graph database.

Abstract: The present application discloses a fuel-water separation filter element capable of exhausting gas, and a filter. The filter element includes a filter element frame, a filter medium, and an exhaust valve assembly. An upper end cover and a lower end cover are arranged at an upper end and a lower end of the filter element frame. The upper end cover is provided with a recess surface along an axial direction of the filter element frame. The exhaust valve assembly includes a valve seat and a valve element. The valve seat and the recess surface form an exhaust cavity communicating with the inside of the filter element. The exhaust valve assembly in the present application can effectively exhaust gas in the filter.

Abstract: The present application discloses an electrostatically conductive filter element. An annular end cover made of a conductive material is connected to one end of a filter medium of the filter element. An annular raised wall axially extends from an inner opening of the annular end cover. Conductive portions radially extending inwards and configured to be in hard connection with an external conductive device are arranged on an inner surface of the annular raised wall. During use of this filter element, the conductive portions can be stably electrically connected to the external conductive device, and the static electricity generated by the filter medium is dissipated to the outside by the external conductive device.

Abstract: Provided is a projection screen. The projection screen includes a first transparent cover plate, a transparent touch panel, and a first nanoparticle layer, wherein the first nanoparticle layer and the first transparent cover plate are sequentially laminated on one side of the transparent touch panel, and the first nanoparticle layer comprises a plurality of dispersed nanoparticles of different particle sizes. A method for manufacturing a projection screen, a projection display system, and a projection display method are also provided.

Abstract: Provided by the present application are a Direct Current (DC) micro-grid system, a charging loop circuit and a control method thereof. The charging loop circuit selectively connects a charging loop to a first side loop or a second side loop through a set of switches.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may determine a reference location associated with a virtual image corresponding to a target area. The network node may transmit a radio frequency signal, wherein the radio frequency signal is beamformed based at least in part on the reference location to direct the radio frequency signal to the target area. Numerous other aspects are described.

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: Embodiments of synchronized hinges for foldable displays are described. In some embodiments, a hinge may include: a first bracket coupled to a first shaft via a first arm, a second bracket coupled to a second shaft via a second arm, and a synchronization bracket coupled to the first and second shafts.

Abstract: Certain embodiments of the present disclosure provide techniques training a user detection model to identify a user of a software application based on voice recognition. The method generally includes receiving a data set including a plurality of voice interactions with users of a software application. For each respective recording in the data set, a spectrogram representation is generated based on the respective recording. A plurality of voice recognition models are trained. Each of the plurality of voice recognition models is trained based on the spectrogram representation for each of the plurality of voice recordings in the data set. The plurality of voice recognition models are deployed to an interactive voice response system.

Abstract: An electrical connection assembly includes a first insulator, a first adapter circuit board defining a first hole, a first connection terminal fixed to the first insulator, and a flexible connection member. The first connection terminal includes a first press fitting part pressed into the first hole of the first adapter circuit board and electrically connected to the first adapter circuit board, and a second press fitting part protruding from the first insulator and adapted to be pressed into a second hole of a first circuit board to be electrically connected to the first circuit board. The flexible connection member includes a connection conductor electrically connected to the first adapter circuit board.

Abstract: An electrical connection assembly includes a first insulator, a first connection terminal fixed to the first insulator and including a first press fitting part and a first connection part, and a flexible connection member including a connection conductor. The first connection part is connected to a first end of the connection conductor to be electrically connected to the flexible connection member. The first press fitting part is pressed into a first hole of a first circuit board to be electrically connected to the first circuit board.

Abstract: Disclosed are techniques for wireless sensing. In an aspect, a method for reconfigurable intelligent surface (RIS)-assisted sensing performed by a base station (BS) includes configuring one or more reciprocal RIS beam pairs for sensing, wherein each of the one or more reciprocal RIS beam pairs comprises a downlink (DL) beam having a DL angle of departure (DL AoD) from a RIS controlled by a first set of control voltages and an uplink (UL) beam having an UL AoD from the RIS controlled by a second set of control voltages. The BS may send, to the RIS, information identifying the one or more reciprocal RIS beam pairs. The BS may perform monostatic sensing using at least one of the one or more reciprocal RIS beam pairs.

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) and a network entity may utilize multi-port mobility reference signals to assist with spatial based mobility procedures. The UE may receive a reference signal that is associated with multiple antenna ports. The UE may measure a multi-dimensional channel response based on the reference signal. The multi-dimensional channel response may be associated with measured channel metrics corresponding to the multiple antenna ports. The UE may transmit a report that includes a channel measurement vector based on the multi-dimensional channel response. The channel measurement vector may indicate multiple measured channel metrics for one or more dimensions of the multi-dimensional channel response. The network entity may transmit a message that indicates one or more metrics associated with mobility management for the UE based on the report that indicates the channel measurement vector.

Abstract: This document describes techniques and systems of a radar system with modified orthogonal linear antenna subarrays and an angle-finding module. The described radar system includes a first one-dimensional (1D) (e.g., linear) subarray; a second 1D subarray positioned orthogonal to the first 1D subarray; and a two-dimensional (2D) subarray. Using electromagnetic energy received by the first 1D subarray and the second 2D subarray, azimuth angles and elevation angles associated with one or more objects can be determined. The radar system associates, using electromagnetic energy received by the 2D subarray, pairs of an azimuth angle and an elevation angle to the respective objects. In this way, the described systems and techniques can reduce the number of antenna elements while maintaining the angular resolution of a rectangular 2D array with similar aperture sizing.

Abstract: The present invention discloses a Fe—Al-based metal porous membrane and a preparation method thereof, which relate to the technical field of industrial gas-solid and liquid-solid separation and purification, and mainly address problems in the prior art, such as cracking-prone and peeling of a membrane layer of an existing Fe—Al-based metal porous membrane during its preparation and use. The preparation method of the present invention comprises the steps of: adding a Fe—Al-based metal powder and a metal fiber powder into an organic-additive-added water-based solvent, and mixing them into a slurry; casting the slurry, through a casting machine, to form a membrane green body on a metal substrate layer, and letting it dry; and placing the dried membrane green body in a sintering furnace, to remove organic substances and perform high-temperature sintering and predetermined-temperature reaction synthesis.

Abstract: A temperature management system for an occupant supporting device comprising an air-circulating circuit is provided, the air-circulating circuit comprising: an air distributing device; a main power device for circulating the air in the air-circulating circuit; and a temperature adjusting device for adjusting the temperature of the air in the air-circulating circuit, wherein an airflow, which has been temperature adjusted by the temperature adjusting device, out of the main power device comprises at least a first portion which flows into the air distributing device and a second portion which returns back to the main power device after circulating within the air-circulating circuit, and wherein the airflow which returns back to the main power device will be adjusted by the temperature adjusting device and circulated in the air-circulating circuit again.

Abstract: The present disclosure provides a display panel, a manufacturing method thereof, and a display device. The display panel includes a first transistor. The first transistor includes a first semiconductor layer, and the first semiconductor layer includes bismuth selenium oxide materials to enhance mobility of the first transistor and improve electrical performance of the display panel, so that the display panel meets requirements of high refresh rate and high transmittance.