Abstract: Recesses are formed on a front side and a rear side of a waveguide. A solid porogen material is spun onto the front side and the rear side and fills the recesses. First front and rear cap layers are then formed on raised formations of the waveguide and on the solid porogen material. The entire structure is then heated and the solid porogen material decomposes to a porogen gas. The first front and rear cap layers are porous to allow the porogen gas to escape and air to enter into the recesses. The air maximizes a difference in refractive indices between the high-index transparent material of the waveguide and the air to promote reflection in the waveguide from interfaces between the waveguide and the air.

Abstract: Provided are a piezoelectric vibrator and a piezoelectric vibrator assembly having a small volume, fast response, and high energy conversion efficiency. The piezoelectric vibrator includes a piezoelectric body and an amplifying unit fixedly supported on at least one of two opposite sides of the piezoelectric body. The piezoelectric body comprises a single-layer or multi-layer material with a piezoelectric effect. The amplifying unit is a flat structure formed by an elastic reinforcing element and having a same shape as the piezoelectric body. The elastic reinforcing element is a metal sheet. The piezoelectric body, when an external voltage is applied, expands or contracts along a first direction parallel to a plane of the piezoelectric body, and simultaneously, the amplifying unit contracts or expands along a second direction. The first direction and the second direction are perpendicular to each other.

Abstract: Methods and related devices for performing congestion control in a decentralized way are provided, particularly for controlling interference among autonomous wireless communication links, such as sidelink communication. According to embodiments of the present disclosure, methods for performing congestion control comprise sending a cooperation message that includes a measured total interference and a cooperation mode indicator. Based on this cooperation message, other devices may voluntarily decide to join a coalition for perform congestion control.

Abstract: The invention relates to a method of acquiring information of an accessory connected to a vehicle. The method comprises, in a control unit of the vehicle, acquiring an accessory identifier from the accessory. The method further comprises transmitting the accessory identifier to a remote server comprising accessory information, matching, in the server, the accessory identifier with corresponding accessory information, transmitting the accessory information to the vehicle and receiving the accessory information in the control unit.

Abstract: The present disclosure relates to a dirty paper coding (DPC) scheme for a wireless communication system. One example encoding device obtains symbol probabilities for symbols of a symbol sequence given an effective interference based on a target distribution of symbols of a transmit signal, encodes a message into the symbol sequence based on the symbol probabilities, and then obtains the transmit signal based on a mapping of the symbol sequence and the effective interference using a scalar function. One example decoding device obtains a receive signal, obtains a symbol sequence based on the receive signal and a scaling factor using a scalar function, and then decodes the symbol sequence to obtain a message.

Abstract: A display apparatus includes a display panel and an emission time control chip. The display panel has a plurality of sub-pixels, and each sub-pixel includes a light emitting device, a pixel driving circuit, and an emission time control circuit. The pixel driving circuit is configured to provide a driving signal for driving the light emitting device to emit light. The emission time control circuit is configured to connect the pixel driving circuit to the light emitting device in response to an emission control signal to control a duration of transmission of the driving signal to the light emitting device. The light emitting time control chip includes at least one output terminal. The emission time control chip is configured to transmit emission time control signals to the light emitting time control circuits of the plurality of sub-pixels through the at least one output terminal.

Abstract: Example transmission methods and apparatus are described. In one example method, a transmitter is configured to communicate with a receiver via a communication channel. The transmitter is configured to precode a data word into a precoded data word using a probabilistic shaping scheme, wherein the probabilistic shaping scheme depends on one or more precoding parameters. The precoded data word is encoded into a codeword using a modulation and/or coding scheme, wherein the modulation and/or coding scheme depends on one or more modulation and coding parameters. At least one precoding parameter is determined on the basis of at least one of the one or more modulation and coding parameters and/or on the basis of at least one further precoding parameter.

Abstract: The present application discloses is a scheduling method and system for fully autonomous waterborne inter terminal transportation, and belongs to the field of transportation. The method includes: establishing a dynamic scheduling model for waterborne Autonomous guided vessels (wAGVs); quickly inserting the dynamically arriving transportation tasks into all the existing wAGV paths, calculating the insertion cost and selecting the path and position with the lowest insertion cost to obtain updated initial paths; improving the initial path using a heuristic algorithm based on tabu search to obtain quasi-optimal wAGV paths; executing the scheduling wAGV paths.

Abstract: The present disclosure provides a load stabilization device, a control method thereof, and a computer readable storage medium. In the load stabilization device, a motion sensor, a processor, a stabilization motor, and a parallelogram mechanism constitute a closed-loop feedback control system. A control instruction for the stabilization motor is generated based on a velocity of a second end of the parallelogram mechanism in a direction of gravity relative to a ground, where the second end may carry a load, and the stabilization motor is controlled to drive, according to the control instruction, the parallelogram mechanism to rotate relative to a base, so as to at least partially offset or compensate for jitter of the load carried at the second end of the parallelogram mechanism in the direction of gravity, suppress disturbance generated at a first end of the parallelogram mechanism, and stabilize the load carried at the second end.

Abstract: The invention relates to an agrochemical suspension comprising a) an agrochemical active, wherein the agrochemical active is present in the form of suspended particles in the agrochemical suspension, b) a polymer P being a homo- or copolymer of (meth)acrylic acid with a mass average molar mass Mw of at least 100,000 Da; c) a thickener; and d) naphthalenesulfonate formaldehyde condensate, wherein the concentration of the naphthalenesulfonate formaldehyde condensate is from 0.2 to 0.9 wt % based on the total weight of the composition. It also relates to a tank mix comprising the agrochemical suspension and an inorganic fertilizer; to a method for preparing the tank mix; and to a method of controlling phytopathogenic fungi and/or undesired plant growth and/or undesired insect or mite attack and/or for regulating the growth of plants including application of the agrochemical suspension.

Abstract: A sound velocity profile inversion method based on an inverted multi-beam echometer.

Abstract: A method for quantitative analysis of a cavity at the top of a concrete-filled steel tube is disclosed. By substitution of the determined inner radius of the steel tube, the thickness of the steel tube wall and the propagation speed of ultrasonic waves in the steel tube and in the concrete, the propagation time of the ultrasonic wave between the top and the bottom of the concrete-filled steel tube enables calculation of the height of the cavity. The method can be used to quantify the cavity height at the top of the concrete-filled steel tube, with small relative errors and high accuracy.

Abstract: A display device includes a controller, a frame, a display panel, an FPC and a force sensing structure; wherein the FPC is disposed on a back side of the display panel and electrically connected to the display panel, and the back side of the display panel is a side opposite to a light-emitting surface of the display panel; the force sensing structure is disposed on the FPC and electrically connected to the controller by the FPC; and the frame is disposed on a side, distal from the display panel, of the FPC, and a specified distance exists between the frame and the force sensing structure.

Abstract: A method for positioning an underwater glider based on a virtual TDOA of a single beacon is provided. In the method, a positioning beacon periodically sends positioning messages, where the positioning message includes longitude, latitude and depth information of the positioning beacon; the underwater glider receives the positioning messages and records TOAs at which the positioning messages arrive at an acoustic positioning signal receiving module; and the underwater glider parses the positioning messages and stores positioning message data, creates virtual beacons based on beacon information and attitude information of the underwater glider, corrects the TOAs, and calculates a position of the underwater glider according to a TDOA algorithm. According to the method, the underwater glider passively listens to and receives the positioning messages without sending a positioning request to the positioning beacon, making the entire positioning process energy-saving with a certain degree of concealment.

Abstract: A method and system for training a neural network for predicting braking distance of a vehicle. The method comprises performing one or more training stages for the neural network in the vehicle, a first set of weights and biases received from a server is used as an initial set of weights and biases for the neural network during a first training stage; updating the set of weights and biases of the neural network after every training stage and sending the updated set of weights and biases of the neural network to the server after a certain number of training stages have been performed.

Abstract: The invention relates to an adhesive composition, the preparation and use of said composition, and an article obtained by bonding using said composition. The adhesive composition comprises: a. an anionic aqueous polyurethane dispersion, which contains a polyurethane with enthalpy of fusion of at least 3 J/g, wherein the enthalpy of fusion is measured by DSC at 20° C.-100° C. of the first heating curve according to DIN 65467; and wherein said aqueous polyurethane dispersion has a hydroxyl content of 0.001% by weight to 0.085% by weight, relative to the total weight of the aqueous polyurethane dispersion; and b. an aqueous polyacrylate primary dispersion with a hydroxyl content of 0.5% by weight to 1.

Abstract: In an embodiment, a radio resource manager device is provided. The radio resource manager device may include a receiver configured to receive an application applying for radio resources; an interference allowance determiner configured to determine whether interference of signal transmission during radio communication using radio resources is allowed; and a radio resource assigner configured to assign radio resources based on the determined interference allowance.

Abstract: In an approach for road section recognition using multi-modal cognitive mechanism, a processor receives an audio signal from a road test. A processor processes the audio signal to generate an acoustic spectrum density distribution map to identify a respective at least one road section switching point in a first mode. A processor processes a spectrogram of the audio signal to identify the respective at least one road section switching point in a second mode. A processor uses a machine learning model to predict an expected sound at each frame of the audio signal, to calculate a similarity between the expected sound and an actual sound, and to identify the respective at least one road switching point when the similarity is lower than a pre-set similarity threshold in a third mode. A processor combines results of the three modes to obtain a final set of road section switching points.

Abstract: A display device includes a controller, a frame, a display panel, an FPC and a force sensing structure; wherein the FPC is disposed on a back side of the display panel and electrically connected to the display panel, and the back side of the display panel is a side opposite to a light-emitting surface of the display panel; the force sensing structure is disposed on the FPC and electrically connected to the controller by the FPC; and the frame is disposed on a side, distal from the display panel, of the FPC, and a specified distance exists between the frame and the force sensing structure.