Abstract: Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may receive a physical downlink control channel (PDCCH) that schedules a physical downlink shared channel (PDSCH) in a slot, and on a component carrier (CC) of a plurality of CCs. The PDCCH may include a total downlink assignment index (DAI) and a counter DAI for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback of the PDSCH. The total DAI may indicate a total number of pairs of CCs and slots for the HARQ-ACK feedback. The UE may encode the HARQ-ACK feedback to include a bit that indicates whether the PDSCH is successfully decoded. A size of the HARQ-ACK feedback may be based on the total DAI, and a position of the bit may be based on the counter DAI.

Abstract: The present disclosure relates to a detection method and system for an underground space by joint use of fixed sensors and unmanned aerial vehicle (UAV) movement detection. The detection system includes underground space sensor nodes and an underground space UAV. The underground space sensor nodes are configured to perform fixed monitoring based on an adaptive optimal layout strategy for an underground structural space. The underground space UAV is configured to calculate a first virtual force, and realize movement detection by means of a virtual force-guided path planning algorithm. The underground space UAV is configured to calculate the first virtual force based on the electronic telescopic anti-collision bars, a second virtual force based on a static perception probability and a third virtual force based on structural evolution knowledge, and realize a fixed node-guided UAV flight detection mode by means of the virtual force-guided path planning algorithm.

Abstract: The invention discloses a multi-threshold segmentation method for medical images based on an improved salp swarm algorithm. A two-dimensional histogram is established by means of a grayscale image of a medical image and a non-local mean image, then a salp swarm algorithm is used to determine thresholds selected by a Kapur entropy-based threshold method, and the salp swarm algorithm is improved and mutated by an individual-linked mutation strategy during the threshold selection process to avoid local optimization, so that the segmentation effect on the medical image is optimized; and the method has the advantages of good robustness and high accuracy.

Abstract: Systems and methods are provided for displaying taxi information on an aircraft. The system comprises a display device, a database including taxiing route data that includes a plurality of taxiing routes associated with taxiways and runways at an airport, a communication system configured to receive the taxiing route data from the database, and a processor. The processor is configured to: receive an assigned taxiing route, receive the taxiing route data from the database, analyze the taxiing route data to determine whether modification to the assigned taxiing route is necessary, determine possible taxiing routes from the taxiing routes data based on conditions of the aircraft, predict preferential taxiing routes specific to the aircraft from the possible taxiing routes, generate a display for the display device including the preferential taxiing routes, and receive user input indicating a selected taxiing route from among the preferential taxiing routes.

Abstract: The present disclosure discloses a method and apparatus for generating an image. A specific embodiment of the method comprises: acquiring at least two frames of facial images extracted from a target video; and inputting the at least two frames of facial images into a pre-trained generative model to generate a single facial image. The generative model updates a model parameter using a loss function in a training process, and the loss function is determined based on a probability of the single facial generative image being a real facial image and a similarity between the single facial generative image and a standard facial image. According to this embodiment, authenticity of the single facial image generated by the generative model may be enhanced, and then a quality of a facial image obtained based on the video is improved.

Abstract: The present disclosure provides a coal bump control method for sectional hydraulic fracturing regions of a near vertical ultra thick coal seam. The method includes: deepening a main shaft from a mining level to a fracturing level; excavating a cross-hole from a roof rock layer of a coal seam at the fracturing level to enter a coal seam being mined, and excavating a roadway along the strike of the coal seam; and drilling hydraulic fracturing boreholes in a dedicated fracturing roadway along an inclination angle of the coal seam to the coal seam above the roadway, wherein the length of the borehole makes the borehole in communication with a goaf, and the spacing of the boreholes along the strike and the sectional spacing of the boreholes in an inclination direction are designed according to the parameters of fracturing equipments and the fracturing length.

Abstract: A control system includes one or more processors and one or more memories. The one or more memories store one or more computer programs that, when executed by the one or more processors, cause the one or more processors to obtain operation information of a movable platform performing an operation in a target area, determine at least one operation abnormal area of the movable platform performing the operation in the target area according to the operation information, determine a corresponding supplement operation path according to the at least one operation abnormal area, and control the movable flatform to perform a supplement operation based on the supplement operation path.

Abstract: Described is an apparatus of a User Equipment (UE). The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to process one or more configuration transmissions from the gNB carrying a rule for Uplink (UL) collisions and process a first Downlink (DL) transmission and a second DL transmission. The second circuitry may be operable to identify a first UL transmission for the first DL transmission and a second UL transmission for the second DL transmission, the first UL transmission overlapping with the second UL transmission in at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol. The third circuitry may be operable to generate at least one of the first UL transmission and the second UL transmission in accordance with the rule for UL collisions.

Abstract: The resonant tank circuit (102) comprises: a transformer (T); a primary circuit (M1); and a secondary circuit (M2); wherein the transformer (T) and the primary and secondary circuits (M1, M2) are designed to operate in a forward mode and in a reverse mode; and wherein the transformer (T) and the primary and secondary circuits (M1, M2) have, at a resonant frequency (FR), a forward gain (GF(FR)), respectively a reverse gain (GR(FR)), essentially independent of the load, when operating in the forward mode, respectively the reverse mode. The primary and secondary circuits (M1, M2) are different one from another and the forward gain (GF(FR)) and the reverse gain (GR(FR)) at the resonant frequency (FR) are essentially equal to one another, notably to within 5%.

Abstract: An automatic power off circuit of a non-rebound switch includes: a power switch circuit, the non-rebound switch, a trigger circuit, a controller, and a power on-off control circuit; the trigger circuit is connected with the power switch circuit and the non-rebound switch, and configured to send a turn-on signal to the power switch circuit to turn on the power switch circuit when the non-rebound switch is turned on; the controller is connected with the power switch circuit and configured to detect continuous turn-on time of the non-rebound switch and output a turn-off signal in response to the continuous turn-on time exceeding a preset timing time; the power on-off control circuit is connected with the controller, the power switch circuit and the non-rebound switch, and configured to turn off the power switch circuit by using the turn-off signal. A problem that non-rebound switches cannot be automatically powered off can be solved.

Abstract: A lane marking detecting method, an apparatus, an electronic device, a storage medium, a program product, and a vehicle, where a specific implementation includes: obtaining a video stream including a lane marking; extracting a key image frame from the video stream at a predetermined interval of frames, with an image frame between adjacent key image frames being a non-key image frame; detecting, for the key image frame, a lane marking according to a feature map of the key image frame; detecting, for the non-key image frame, a lane marking according to the non-key image frame and a feature map of a previous key image frame of the non-key image frame. In this embodiment, the feature map of the non-key image frame is determined and the lane marking is detected by combining the feature map of the previous key image frame, thus enabling flexibility and diversity in lane marking detection.

Abstract: Disclosed herein are timing determination techniques for 5G radio access network (RAN) cells. According to various such techniques, during a random access procedure, a user equipment (UE) may receive a grant of resources for an uplink (UL) data transmission in a random access response (RAR) message. The UE may identify a scheduled slot for the UL data transmission based on a received slot of the RAR message and an applicable slot offset value. The applicable slot offset value may indicate a number of slots by which the received slot precedes the scheduled slot. The applicable slot offset value may be identified using the various techniques described herein.

Abstract: The disclosure describes various aspects of using optical elements monolithically integrated with light-emitting diode (LED) structures. In an aspect, a light emitting device includes a single LED structure having an active region and a single optical element disposed on the LED structure and configured to collimate and steer light emitted by the LED structure. One or more additional optical elements may also be disposed on the LED structure. In another aspect, a light emitting device may include multiple LED structures and a single optical element disposed on the multiple LED structures and configured to collimate and steer light emitted by the multiple LED structures. For each of these aspects, the LED structure(s) and the optical element(s) are made of a material that includes GaN, the LED structure(s) has a corresponding active region, and the LED structure(s) has a corresponding reflective contact disposed opposite to the optical element(s).

Abstract: An ADS-B traffic filter to remove ADS-B positional messages or tracks with unstable ADS-B data or anomalies. The anomaly in ADS-B data can be caused by own ship ADS-B data processing and by errors in ADS-B OUT messages, such as positional outliers, ADS-B OUT parameters gaps, frozen data, walking track when stopped and other issues within ADS-B OUT messages. The ADS-B traffic filter of this disclosure may remove erroneous ADS-B targets from computation input delivered to a traffic collision warning systems in locations where high horizontal position accuracy is desirable such as ground operations. The filter may validate positions decoded from received ADS-B OUT messages, and data history of targets, to independent signal components from ADS-B broadcast (e.g., position and ground speed data), as well as compare the reported position with a reasonability bound provided by local runway or airport geometry data.

Abstract: A bidirectional transmission circuit for a universal signal, comprising an intrinsically safe energy limiting module, a first signal coupling module, an isolation transformer module, a second signal coupling module and a control module; the first signal coupling module adjusts a first direct current signal of a universal signal to a first alternating current signal, the isolation transformer module transmits the first alternating current signal to the second signal coupling module in an isolation manner, and the second signal coupling module adjusts the first alternating current signal to a second direct current signal to a universal signal receiving terminal; the second signal coupling module further adjusts a third direct current signal of a control signal to a second alternating current signal, and the first signal coupling module further adjusts the second alternating current signal to a fourth direct current signal to a control signal receiving terminal.

Abstract: A laser rangefinder with magnetic suction includes a first shell, a second shell, a display screen, a control button, a laser ranging device and a magnet device used to fix the laser rangefinder on a metal frame by magnetic suction. A front end of the first shell is provided with the display screen and the control button, a first accommodating cavity is formed between the first shell and the second shell, the laser ranging device is disposed in the first accommodating cavity, and the magnet device is disposed on the second shell. In this case, the laser rangefinder with magnetic suction makes the measurement more convenient and ensures the accuracy of the measurement results.

Abstract: A method is provided for preparing at least one textured layer in an optoelectronic device. The method includes epitaxially growing a semiconductor layer of the optoelectronic device over a growth substrate; exposing the semiconductor layer to an etching process to create the at least one textured surface on the semiconductor layer; and lifting the optoelectronic device from the growth substrate.

Abstract: A gas detector includes a gas detector body; the gas detector body includes a detection probe, a gas detector housing, and a universal shaped tube. An end of the universal shaped tube is connected with the gas detector housing, the other end of the universal shaped tube is connected with the detection probe, and the detection probe is internally integrated with a sensor used to detect a leakage gas, an alarm lamp used for an alarm indication when the leakage gas is detected, and a lighting device used to illuminate. According to the gas detector, an extending portion of the universal shaped tube is provided with the protection probe, and the alarm lamp and the lighting device are added therein, realizing the alarm indication, and being used to illuminate as a searchlight in an area with poor lighting of a gas pipeline during non-alarm.

Abstract: Disclosed is a high ultraviolet blocking polylactic acid composite material reinforced by POSS modified bamboo powder. The preparation method therefor includes steps of carrying out chemical grafting modification of bamboo powder with proper particle size by using POSS containing specific organic groups, and then adding the modified bamboo powder to polylactic acid for melting and co-extrusion to obtain POSS modified bamboo powder. The present disclosure makes full use of the 30% lignin in the bamboo powder, having the advantages of wide source, biological metabolizability and low price; the present disclosure does not need the traditional inorganic ultraviolet blocking agent, nor need to extract refined lignin from natural materials, but directly takes inexpensive and easy-to-obtain bamboo powder as main raw material. The composite material prepared in the present disclosure can greatly improve the UV blocking performance, mechanical properties and thermal stability of the PLA.