Abstract: The invention provides a precipitation estimation method based on hybrid scanning of weather radar networking, including: constructing an initial data grid according to a projection mode, a networking range and a resolution of radar networking precipitation estimation, constructing an elevation data grid according to a terrain elevation data in radar networking area in the same projection mode, networking range and resolution; converting coordinates of the initial data grid into longitude and latitude coordinates, and calculating an intersection height between a geocentric line of the longitude and latitude coordinates of the initial data grid and an elevation scanning data of each radar in the radar networking area; selecting a scanning data corresponding to an intersection height nearest to a preset near-surface height H in the elevation data grid as the scanning data of the initial data grid for precipitation assessment according to the intersection height corresponding to each radar.

Abstract: A soft ground cleaning vehicle, including a main body frame; wherein each of both sides of the main body frame is arranged with a screw propulsion mechanism, and a lower portion of each of the both sides of the main body frame is arranged with a bottom frame; a power assembly is arranged on the bottom frame, and an extension frame is arranged on a lower portion of the bottom frame; the extension frame is arranged with a rotation assembly; a plastic track is arranged on the power assembly and the rotation assembly; a plurality of stand plates are arranged on an outer strip surface of the plastic track.

Abstract: A method includes receiving, by a processor, a video of an illuminated face. Video frames in the video are associated with different time instants of a time series, respectively. The method includes determining a region of interest (ROI) that includes a closed eye on the face based on at least one frame in a plurality of video frames in the video. The method includes slicing each ROI based on slice parameters for selecting a vertical slice that includes a eye centroid of the closed eye, and selecting a horizontal slice that intersects the vertical slice at a pivot (P) located lp pixels from the eye centroid. The method includes determining an eyeball motion signal according to the time series, based on a measured value of a shadow intensity of the eye within at least one of the vertical slice or the horizontal slice at each of the different time instants.

Abstract: An apparatus includes a microphone, a memory, and a processor operably coupled to the memory. The processor is configured to determine an energy level of an audio signal captured by the microphone and determine whether the audio signal indicates a possible fall. The processor is further configured to, upon a determination that the audio signal indicates the possible fall, poll a fall detection module.

Abstract: A method is disclosed for providing, for display to a content provider, a user interface (UI) indicating one or more characteristics of existing audiences including a plurality of users currently designated to receive content of the content provider, the UI comprising a new audiences UI element selectable to view new audiences to be added to the existing audiences, receiving a user selection of the new audiences UI element, and in response to the user selection of the new audiences UI element, predicting, using a machine learning model, an increase in a number of user actions related to the content of the content provider in response to an addition of the new audiences to the existing audiences, and causing display of information identifying the new audiences, and an indication of the predicted increased number of user actions related to the content of the content provider in response to the addition of the new audiences to the existing audiences.

Abstract: A sensing coupled emergency communication service quality assurance method includes: determining a communication latency index ?, which is taken as a communication QoS indicator, obtaining a user effective capacity C by calculating a user communication rate, calculating a detection probability Pd and a false alarm rate Pf according to radar echo signal energy detection results, fusing Pd and Pf into an effective capacity equation to obtain an expanded effective capacity, constructing an optimization problem by taking a total expanded effective capacity of the system as an objective function and taking the power, latency index and detection probability as constraints, and allocating the user power according to solution results of the optimization problem.

Abstract: The present disclosure provides a pharmaceutical composition comprising an echinocandin analog and a preparation method for the pharmaceutical composition. Specifically, the present disclosure provides a pharmaceutical composition, comprising a compound represented by formula (I) or a pharmaceutically acceptable salt thereof, a solubilizer, and a buffer. The composition has excellent stability.

Abstract: Methods and apparatuses for enabling reuse, by a node in a basic service set (BSS), of a channel medium that is in use by devices of an overlapping BSS (OBSS) in a wireless local area network. A method of wireless communication performed by a first node includes the steps of obtaining, based on transmissions from other nodes in at least one of a BSS or an OBSS, network context information for a network environment around the first node, updating an OBSS packet detection (PD) threshold for spatial reuse (SR) based on the network context information, and performing, for a transmission to one of the other nodes in the BSS, an SR clear channel assessment (CCA) using the updated OBSS PD threshold for detection of packets transmitted by the nodes in the OBSS.

Abstract: A method for manufacturing a TOPCon cell includes following steps: texturing a front side of an silicon wafer and then preparing a PN junction; forming a tunnel oxide layer, an intrinsic polysilicon layer, a doped polysilicon layer, and a silicon oxide mask layer in sequence on a back side of the silicon wafer, wherein the tunnel oxide layer is deposited by PEALD at a deposition temperature of 150° C. to 200° C., the doped polysilicon layer is deposited by PECVD, and the silicon oxide mask layer has a thickness of 10 nm to 40 nm; removing a wraparound silicon oxide mask layer material and a wraparound polysilicon layer material from the front side of the silicon wafer, and then removing the silicon oxide mask layer from the back side; and forming a front electrode on the PN junction and a back electrode on the doped polysilicon layer, respectively.

Abstract: Methods and apparatuses for a spiking ReEsNet for a channel estimation and prediction in advanced wireless communication systems. The method of a network entity comprises: receiving, from a user equipment (UE), a sounding reference signal (SRS); generating, based on the SRS, a first signal including an input matrix; sending, to an input convolutional (CONVin) layer, the first signal to generate a second signal; sending, to a leaky integrated-and-fire (LIF) neuron layer, the second signal; sending, to an output convolutional (CONVout) layer via a plurality of spiking residual blocks (ResBlocks), a third signal generated from the LIF neuron layer, wherein each of the plurality of spiking ResBlocks is structured in a cascade manner; and sending, to a linear average layer, a fourth signal generated from the CONVout layer for a channel estimation operation and a channel prediction operation for the UE.

Abstract: A method for pressure relief and permeability improvement on the basis of horizontal slitting of a coal seam under the action of periodic weighting is provided, which relates to the technical field of permeability improvement and efficient gas extraction of the coal seam. The method comprises the steps: collecting background information of coal mine production, selecting a driving face of a high-gas low-permeability coal roadway, measuring a roof weighting step distance in real time, predicting a weighting cycle, selecting a coalface, drilling a long bedding drill hole, and performing hydraulic horizontal slitting.

Abstract: A level monitoring and automatic leveling system for a rail transporter, including: a transporter, two auxiliary rails, brackets, support columns, and a track. The brackets are fixed on the support columns, the track is arranged on the brackets; the two auxiliary rails are arranged on both ends of each bracket; the transporter is configured to run on the track, and a balance of the transporter is configured to be maintained through the two auxiliary rails. During transporting cargo, the transporter is configured to automatically detect a tilt angle. When the tilt angle deviates, the transporter automatically adjusts a horizontal position of a cargo container of the transporter, keeping the cargo container in a horizontal state to achieve automatic leveling. An operating speed of the transporter can be adjusted, enabling the transporter to run at a set speed; an electromagnetic braking device is arranged to achieve braking of the transporter.

Abstract: In one aspect, a solar cell includes: a P-type silicon wafer; a plurality of P-type heavily-doped layers, a front passivation layer, a front anti-reflection layer, and a plurality of front metal gate lines, sequentially disposed on a front surface of the P-type silicon wafer; and a doped oxide layer, a back crystalline silicon layer, a back anti-reflection layer, and a back metal electrode layer, sequentially disposed on a back surface of the P-type silicon wafer. The plurality of P-type heavily-doped layers are disposed in a plurality of regions corresponding to the plurality of front metal gate lines, respectively, and each of the plurality of front metal gate lines sequentially passes through the front passivation layer, and the front anti-reflection layer to form contact with a corresponding one of the plurality of P-type heavily-doped layer.

Abstract: A method of training a reinforcement learning agent to output actions from a continuous action space, comprising: providing an actor ensemble that includes a plurality of actor neural networks that each output a respective action from the continuous action space in response to an observed state of an environment; providing a critic neural network that approximates a state-action value function indicating an impact of an action on the environment based on a reward from the environment and the observed state of the environment; training the actor ensemble and the critic neural network to maximize a state-action value from the state-action value function over successive time steps by, in each time step: selecting from the respective actions output by the plurality of actor neural networks the action that will provide a best state-action value from the state-action value function; applying the selected action to the environment; based on an observed state of the environment of in response to the selected action,

Abstract: In order to extend an OAuth 2.0 framework in a way that an application programming interface (API) is to be protected with two-factor authentication, an API provider may be presented with a set of options for different types of second authentication factors that can be used to carry out the two-factor authentication for the API, and then after the API provider selects its desired type of second authentication factor, an OAuth resource endpoint or an OAuth token endpoint may function to perform a second-factor authentication of each client application attempting to access the API based on a second authentication factor of the type selected by the API provider. Other comparable technology for protecting APIs may be extended to allow for two-factor authentication in a similar manner.

Abstract: The technology includes transistor-level routing. According to one aspect, a method includes receiving a placement of transistors. Based on physical characteristics of the placement of transistors, the placement of transistors is partitioned into blocks. Respective routings for intra-partition nets of transistors for the blocks are determined. Respective routings for inter-partition nets of transistors for the blocks are determined.

Abstract: Disclosed is a method for preparing catalytic graphitized few-layer coal-based graphene, comprising the following steps: crushing coal samples to 200 mesh, then treating with hydrochloric-hydrofluoric acid for deashing, and drying at 25° C. for 12 h to obtain a row coal material; grinding and mixing the raw coal and boric acid and loading the mixture into a graphite crucible; transferring the graphite crucible into a graphitization furnace, evacuating the chamber, introducing protective gas and heat treating, and then cooling naturally to room temperature. The prepared coal-based graphene has fewer layers, high crystallinity and strong conductivity, which is superior to the performance of existing coal-based graphene products. Coal, an abundant resource, is used as raw material, the cost is extremely low, and the use of boric acid as a catalyst is environmentally friendly, non-toxic and easy to obtain.

Abstract: A system for virtual mapping for distributed heterogeneous devices with speaker and microphone is provided. The system includes a transceiver and a processor operably connected to the transceiver. The processor is configured to control a set of target devices to emit or measure acoustic signals. Each target device has a capability of emitting and receiving acoustic signals. The processor is configured to process the acoustic signals to at least reduce random jitters, clock offsets, or both the random jitters and the clock offsets. The processor is configured to determine pairwise distances for the set of target devices based on the processed acoustic signals. The processor is configured to map the pairwise distances for each target device among the set of target devices into distances between a set of points in a multidimensional space.

Abstract: A special powder coating for a super weather-resistant composite, and a preparation method and use thereof, and a coating method are provided. The special powder coating for the super weather-resistant composite includes components of, in percentages by mass: 0% to 50% of a modified acrylate, 20% to 75% of a polyester resin, 15% to 20% of an isophorone diisocyanate (IPDI) adduct, 0.1% to 0.8% of a texturing agent, 4.3% to 22.7% of a transparent filler powder, 0.8% to 1.2% of a pigment, 0.1% to 0.2% of a toughening agent, 0.1% to 0.3% of nano-alumina, and 0% to 2% of a conductive agent, the components having a sum of mass percentages of 100%.

Abstract: A diaphragm assembly includes a piston push block, a diaphragm, a middle piece, a balance wheel seat, and fasteners. The diaphragm includes a diaphragm body with protrusions which protrude toward the middle piece and extends into the balance wheel seat. The piston push block includes a piston head and a piston shaft. The piston head is located on the side of the diaphragm facing away from the middle piece, and the piston shaft extends towards the diaphragm and is embedded in the diaphragm protrusion. The middle piece includes a first through hole, the balance wheel seat includes a balance wheel, and the balance wheel includes an insertion hole for the corresponding diaphragm protrusion to be inserted in. The fastener fixes the piston push block, the diaphragm and the balance wheel seat from the side facing away from the working surface of the diaphragm.