Abstract: The invention relates to a thermal energy storage with at least one thermal energy storage volume. The thermal energy storage comprises at least one primary borehole extending from ground level to a first predetermined depth in a rock body; at least one set of secondary boreholes located around the at least one primary borehole; and at least an upper and a lower fracture plane extending in a radial and/or oblique plane from the at least one primary borehole towards adjacent secondary boreholes. At least one fracture plane permits a hydraulic flow between at least one of the secondary boreholes and the primary borehole. Each thermal energy storage volume is defined by one set of secondary boreholes and its upper and lower fracture planes. The set of secondary boreholes diverge away from the at least one primary borehole at each fractured plane level, without intersecting the at least one primary borehole.

Abstract: An emergency output circuit for starting LED lamp tubes with leakage protection includes a PWM pulse genera tor provided with a PWM chip. When a control terminal detects a power outage, a high level of voltage is instantly output to the PWM chip, and the PWM pulse generator outputs complementary drive PWM rectangular waves with a controllable dead time, which are boosted and filtered into a 250V DC voltage; then, positive and negative alternating square waves are formed through a full-bridge inverter circuit, and two pairs of MOS transistors are turned on alternately through complementary PWM control to generate an AC voltage UAB on an LED lamp tube; and finally, an AC rectangular wave slowly changing into a stable 135V AC output from a 250V DC output is obtained through a correction circuit to replace existing methods to turn on the LED tube, thus effectively simplifying the circuit.

Abstract: In one aspect of the present application, a method for segmenting 3D digital model of jaw is provided, the method comprises: obtaining a 3D digital model of jaw to be segmented; converting the 3D digital model of jaw to be segmented into a point cloud; sampling the point cloud to obtain sample points; extracting features from the sample points; classifying the sample points based on the extracted features using a trained DGCNN network; and classifying other points in the point cloud based on the classified sample points using a KNN algorithm, where classifying a point is classifying a facet of the 3D digital model of jaw to be segmented represented by the point as a certain tooth or gingiva.

Abstract: This disclosure provides a network resource pre-allocation method, device, system, and medium, wherein the method includes: an NWDAF acquiring historical record information of a user accessing a service, and generating user service preference prediction and suggestion information according to the historical record information; and the NWDAF sending the user service preference prediction and suggestion information to a network function (NF) so that the NF pre-allocates a network resource according to the user service preference prediction and suggestion information.

Abstract: A method of generating an IC layout diagram includes receiving an IC layout diagram including a gate region and a gate via, the gate via being positioned at a location within an active region and along a width of the gate region extending across the active region, receiving a first gate resistance value of the gate region, retrieving a second gate resistance value from a resistance value reference based on the location and the width, using the first and second resistance values to determine that the IC layout diagram does not comply with a design specification, and based on the non-compliance with the design specification, modifying the IC layout diagram.

Abstract: In an embodiment, a package includes an integrated circuit device attached to a substrate; an encapsulant disposed over the substrate and laterally around the integrated circuit device, wherein a top surface of the encapsulant is coplanar with the top surface of the integrated circuit device; and a heat dissipation structure disposed over the integrated circuit device and the encapsulant, wherein the heat dissipation structure includes a spreading layer disposed over the encapsulant and the integrated circuit device, wherein the spreading layer includes a plurality of islands, wherein at least a portion of the islands are arranged as lines extending in a first direction in a plan view; a plurality of pillars disposed over the islands of the spreading layer; and nanostructures disposed over the pillars.

Abstract: The present invention provides quaternary ammonium cyclodextrin and a preparation method and uses thereof, as well as a silver nanoparticle-cyclodextrin complex and a preparation method and uses thereof. The quaternary ammonium cyclodextrin of the present invention is introduced with an amine group and quaternary ammonium groups, while retaining the special structure and properties of cyclodextrin itself. The amine group contained in the structure plays a role in reducing and complexing Ag+ in the synthesis of AgNPs, and plays a certain role in stabilizing nanoparticles and forming a complex in combination with quaternary ammonium groups.

Abstract: A method of wireless communication is described. The wireless communication method includes receiving, by a communication device, an antenna port indication; and determining, by the communication device, a first demodulation reference signal (DMRS) port based on the antenna port indication. The first DMRS port is mapped to two resource elements of one physical resource block on one OFDM (Orthogonal Frequency Division Multiplexing) symbol.

Abstract: Methods, systems, and non-transitory computer readable storage media are disclosed for generating image mattes for detected objects in digital images without trimap segmentation via a multi-branch neural network. The disclosed system utilizes a first neural network branch of a generative neural network to extract a coarse semantic mask from a digital image. The disclosed system utilizes a second neural network branch of the generative neural network to extract a detail mask based on the coarse semantic mask. Additionally, the disclosed system utilizes a third neural network branch of the generative neural network to fuse the coarse semantic mask and the detail mask to generate an image matte. In one or more embodiments, the disclosed system also utilizes a refinement neural network to generate a final image matte by refining selected portions of the image matte generated by the generative neural network.

Abstract: Disclosed are a multifunctional lens cover, a photographic filter structure and a photographic device. The multifunctional lens cover includes a conversion structure, a filter body and a cover structure. The conversion structure is detachably connected to a lens body, the filter body is detachably connected to the conversion structure, the cover structure includes a first connecting portion and a second connecting portion, the first connecting portion is provided with a first magnetic member to magnetically attract the lens structure, and/or the second connecting portion is provided with a thread structure to be screwed to the lens structure.

Abstract: The present disclosure provides a calibration method and readable computer storage medium. The calibration method includes: configuring a reference signal source to output a reference signal; delaying the reference signal through a delay chain to output a delay signal; synchronous sampling the reference signal and the delay signal; adding 1 count and obtaining a final count value when the sampling result is in the preset state; determining whether a ratio between the count value and the first quantity is within a preset range; obtaining the average delay time according to the time width of the reference signal wave and the number of the delay units opened in the delay chain when the ratio is within the preset range; and outputting a control signal to the clock recovery circuit according to the average delay time to calibrate the delay time of the clock recovery circuit.

Abstract: An oil tank cleaning device is used to solve the problem of poor effect of conventional cleaning operation of an oil tank. The oil tank cleaning device includes a separation equipment, a temporary storage tank, a collecting tank, a pipeline unit, and a plurality of control valves. A first pump sucks air out of the temporary storage tank, such that the temporary storage tank is in a negative pressure state. The collecting tank receives a fluid outputted from the temporary storage tank. The pipeline unit includes a plurality of pipes for intercommunicating with an oil supply tank, a to-be-treated oil tank, the temporary storage tank, the separation equipment, and the collecting tank. Each of the plurality of pipes includes at least one of the plurality of control valves. Each control valve is configured to control flow of a liquid in the control valve.

Abstract: An impact tool includes a first cover mounted at an end of a first housing facing away from an output mechanism, where a first bearing seat is formed on or connected to the inner side surface of the first cover; a display mechanism including a human-computer interaction assembly and a retaining assembly, where the retaining assembly is used for supporting the human-computer interaction assembly, the retaining assembly is disposed on the outer side of the first cover, the human-computer interaction assembly sets and displays an operation parameter, and the operation parameter includes the rotational speed of a motor and an impact time parameter; and a control mechanism driving the motor according to the set operation parameter so that an output shaft outputs the preset tightening torque.

Abstract: An inductor can include at least one winding, where each winding comprises a coil body and at least two lead-out terminals being in contact with the coil body; a first encapsulation body configured to at least encapsulate part of the lead-out terminals and part of the coil body, and to expose the lead-out terminals; and where the first encapsulation body includes an insulating main material and magnetic particles dispersed in the insulating main material.

Abstract: A system and a method are provided. The system includes an airborne detection system and a ground assistance system. The airborne detection system includes an unmanned aerial vehicle, a receiving device, a transmitting device, and a connecting device. The transmitting device includes a transmitting sub-device, a transmitting coil, and a bucking coil. The receiving device includes a receiving sub-device and a three-component magnetic sensor. The connecting device includes a signal and rope composite cable and is used to connect the UAV, the transmitting device, and the receiving device. The three-component magnetic sensor is used to acquire three-component electromagnetic data. The bucking coil is disposed on an inner side of the transmitting coil, and coil winding direction of the transmitting coil and the bucking coil causes current directions flowing through the transmitting coil and the bucking coil to be opposite to each other, to reduce an electromagnetic interference.

Abstract: Embodiments of the present disclosure provide a method, system, and storage medium for predicting an area of oil spill on sea surface, the method for predicting the area of oil spill on sea surface includes: S1, obtaining a training dataset; S2, constructing an oil spill numerical model, and determining a predictive model by performing a predetermined processing on an initial predictive model based on simulation result data and the training dataset; S3, initializing the predictive model, determining a count of nodes of an input layer, an output layer, and a hidden layer; and S4, obtaining input data and inputting the input data into the predictive model in S2 to obtain an oil spill area on sea surface to be measured. The method, when used, has a small error and high accuracy, can save a lot of material and financial resources, and can be more widely used in real life.

Abstract: Various examples relate to methods, apparatuses, devices and computer programs for a client device and a firmware management device, to the client device and the firmware management device, and to a system. The method for the client device comprises determining, on a blockchain, a non-fungible token (NFT) specifying a firmware for the client device, with the client device being set as owner of the NFT and managing a firmware of the client device based on the firmware specified by the NFT.

Abstract: This disclosure relates to a process for the dealumination of a zeolitic material including (1) providing a zeolitic material having a tetravalent element and a trivalent element; (2) providing an aqueous solution having a pH of less than 0.1; (3) treating the zeolitic material with the aqueous solution; and with an aqueous solution or with a solvent system, wherein the aqueous solution or the solvent system have a pH comprised in the range of from 4 to 10, wherein the pH of the aqueous solution or of the solvent system refers to the pH prior to contacting with the zeolitic material for treatment thereof. This disclosure also relates to a zeolitic material as obtained and/or obtainable according to said process.