Abstract: The invention discloses a system and a method for detecting a full-length fluctuation state of a scraper conveyor in a fully-mechanized coal mining working face. The detection system consists of a proximity switch trigger module of the hydraulic support base, a displacement detection module of the digital oil cylinder for position and attitude regulation of the single-section scraper conveyor, a calculation module for the fluctuation angle of the middle groove of the single-section scraper conveyor and a full-length fluctuation state output module of the scraper conveyor.

Abstract: The present disclosure relates to a bit-width control method of bi-directional optical flow (BDOF) for coding a video signal. The method includes determining a first reference picture I(0) and a second reference picture I(1) associated with a video block, determining first prediction samples I(0)(i,j) of the video block from a reference block in the first reference picture I(0), determining second prediction samples I(1)(i,j) of the video block from a reference block in the second reference picture I(1), controlling internal bit-widths of the BDOF by deriving internal bit-widths of intermediate parameters, determining motion refinements for samples in the video block based on the BDOF being applied to the video block based on the first prediction samples I(0)(i,j) and the second prediction samples I(1)(i,j), and determining bi-prediction samples of the video block based on the motion refinements.

Abstract: A method of controlling state of electric assist bicycle is provided. The method obtains position information of a target user. The method generates a state switching instruction according to the position information of the target user. The method controls the electric assist bicycle to switch from an unlocking state to a locking state according to the state switching instruction or controlling the electric assist bicycle to switch from the locking state to the unlocking state according to the state switching instruction. A related control device and a related control system are provided.

Abstract: A method for forming a semiconductor device structure is provided. The method includes removing a portion of a dielectric layer to form a trench in the dielectric layer. The method includes forming a barrier layer in the trench. The method includes forming a seed layer in the trench and over the barrier layer. The seed layer is doped with manganese. The method includes annealing the seed layer in a first process gas including a first hydrogen gas. A volume ratio of the first hydrogen gas to the first process gas ranges from about 50% to about 100%, and the manganese diffuses from the seed layer to the barrier layer during the annealing of the seed layer in the first process gas.

Abstract: An electronic apparatus performs a method of decoding video data. The method includes receiving, from a video bitstream having a hierarchical structure, a first syntax element associated with a first level of the hierarchical structure, in accordance with a determination that the first syntax element indicates that a Cross-Component Sample Adaptive Offset (CCSAO) filter information is present in the first level, reconstructing, from the video bitstream, one or more regions under the first level jointly according to the CCSAO filter information, and in accordance with a determination that the first syntax element indicates that the CCSAO filter information is not present in the first level, reconstructing, from the video bitstream, the one or more regions separately according to the CCSAO filter information present in a second level of the hierarchical structure.

Abstract: The disclosure provides a preparation method of an impact-resistant polyester composition, which is a continuous process and includes the following steps. A recycled release film is crushed, compacted and dried, and then melted, extruded and degassed. The recycled release film contains a recycled PET resin. After filtration, a liquid viscosifying system is used for thickening. Next, it is melted and kneaded, modified with modifiers and extruded. The modifiers include impact modifiers, compatibilizers, antioxidants and lubricants. After the rubber strips are cooled with water, they are then pelletized and dehydrated to produce the impact-resistant polyester composition.

Abstract: A method for driving a display panel is provided. The method includes: receiving a first display data having a first data sequence; rearranging the first display data to generate a second display data according to at least one setting signal; and outputting the second display data to drive the display panel. The second display data has a second data sequence different from the first data sequence.

Abstract: A battery heating device includes a power battery with a first and a second battery modules, a target winding and a target bridge arm. A first end of the target winding is connected to a negative electrode of the first battery module and a positive electrode of the second battery module, and a second end of the target winding is connected to the midpoint of the target bridge arm. A first end of the target bridge arm is connected to a positive electrode of the first battery module, and a second end of the target bridge arm is connected to a negative electrode of the second battery module. A controller is connected to the target bridge arm, and is configured to: control, in a parking heating mode, the target bridge arm to cause the first and the second battery modules to charge and discharge alternately, thereby heating the power battery.

Abstract: A high electron mobility transistor includes a substrate, a channel layer on the substrate, a barrier layer on the channel layer, a dielectric layer on the barrier layer, a gate structure on the dielectric layer, and a source electrode and a drain electrode on the dielectric layer at two sides of the gate structure. The source electrode and the drain electrode respectively include a body portion and a plurality of protruding portions. A bottom surface of the body portion directly contacts a top surface of the dielectric layer. The protruding portions are connected to the bottom surface of the body portion and penetrate through the dielectric layer the barrier layer and a portion of the channel layer.

Abstract: A model optimization method is provided. The method includes: receiving optimization request information entered by a user or sent by an artificial intelligence AI application, where the optimization request information includes a first model file, the first model file includes M operators, each operator is used to perform one matrix multiplication calculation, each operator corresponds to one kernel function, and M is a positive integer; generating a second model file based on the first model file, where the second model file includes N fused operators, each fused operator is used to perform at least two matrix multiplication calculations, each fused operator corresponds to one kernel function, N is a positive integer, and N<M; and providing the second model file for the user or sending the second model file to the AI application.

Abstract: A machine learning-based synthesis runtime prediction method includes collecting initial training data from a database, selecting featured training data from the initial training data useful for predicting runtimes, building a machine learning model for predicting the runtimes based on the featured training data, measuring a loss and an accuracy of the machine learning model, performing standardization and/or normalization on the featured training data of the training data to generate updated training data if the loss and/or the accuracy fails to meet predefined criteria, performing clustering at least once on the updated training data to generate clustered training data, identifying at least one outlier from the clustered training data, removing the at least one outlier to generate filtered training data, and preprocessing, training and testing the machine learning model based on the filtered training data until the loss and the accuracy meet the predefined criteria.

Abstract: A spectrometer system with a volume holographic light guide element includes two focusing lenses in addition to the volume holographic light guide element, which has a light guide element and two volume holographic elements. The first focusing lens receives the light emitted by a to-be-tested light source at a first focal plane of the first focusing lens and makes the light converge and form plural collimated light beams that are projected to, and diffracted and coupled into the light guide element by, the first volume holographic element, are then received and coupled out of the light guide element by the second volume holographic element, and are subsequently received and focused on a sensing element by the second focusing lens. Each collimated light beam enters and exits the light guide element at the same angle. The spectrometer system can measure the intensity/chromatic uniformity of a relatively weak point/surface light source efficiently.

Abstract: The present disclosure generally relates to certain fatty acid amide compounds, such as hydroxy-?-sanshools, hydroxy-?-sanshools, and hydroxy-?-sanshools, and the use of such compounds to impart or enhance sweetness, as well as mask bitterness, enhance mouthfeel, or mask astringency. In certain embodiments, such compounds are used in combination with other sweeteners or sweetness enhancers, such as flavonoids or dihydrochalcones. In certain aspects, the disclosure provides ingestible compositions that include such fatty acid amides. In some related aspects, the ingestible compositions are, or are included within, various flavored products, such as food products, beverage products, pharmaceutical products, or oral care products.

Abstract: The present invention provides freebase and salt forms useful for treating various CDK4-mediated and a CDK6-mediated disorders, such as cancer, by the administration of small molecule therapeutics that act as inhibitors of CDK4 and CDK6. Pharmaceutical compositions comprising the freebase and salt forms, as well as methods of their use and preparation, are also described.

Abstract: A semiconductor device comprising a carrier, a semiconductor die disposed on the carrier and comprising a first contact pad on a first main face remote from the carrier, and a clip. The clip comprises a horizontal portion, a vertical portion, and a bent-back portion connected with the carrier.

Abstract: A semiconductor package includes a conductive pillar and a solder. The conductive pillar has a first sidewall and a second sidewall opposite to the first sidewall, wherein a height and a total length of the first sidewall are respectively greater than a height and a total length of the second sidewall. The solder is disposed on the conductive pillar, wherein the solder is hanging over the first sidewall and the second sidewall of conductive pillar.

Abstract: A resource selection method, an information sending method, apparatuses, and a terminal relate to the technical field of communications. The resource selection method includes: performing resource exclusion on resources in a resource selection window by using a slot candidate resource as granularity, to obtain a candidate resource set; selecting a transmission resource for first target data from the candidate resource set; and sending the first target data to a second terminal through the transmission resource.

Abstract: The invention provides a semiconductor structure, which comprises a substrate, a high-voltage device region is defined on the substrate, in the high-voltage device region, the substrate comprises a first region, a first groove surrounds the first region, and a second region surrounds the first groove, and a contact gate structure is located in the high-voltage device region, when viewed from a top view, the contact gate structure comprises a plurality of columnar dielectric layers arranged in an array.