Abstract: Provided are a high-pressure jet impact chamber structure, with an industrial-grade “single orifice+single pulverizing chamber” design, and a multi-parallel type convenient pulverizing component adopted with the high-pressure jet impact chamber structure. The high-pressure jet impact chamber structure includes a body, a jet orifice, and a pulverizing chamber. The multi-parallel type convenient pulverizing component adopted with the high-pressure jet impact chamber structure includes a multi-parallel type chassis, a multi-parallel type connector disk, multiple high-pressure jet impact chamber structures that are parallel to each other, a sealing end cover, a discharge disk, and a discharge pipe.

Abstract: The invention discloses an AlCrVTiSiON nano-gradient coating with surface pre-oxidation and a preparation method thereof, belonging to the technical field of coatings. The AlCrVTiSiON nano gradient coating is prepared by arc ion plating technology, wherein the target materials are selected from metal Cr target, V target, AlCrSi target and AlTiSi target. In order to further improve the heat resistance of the coating and increase the cutting amount during service, the AlCrVTiSiON nano-gradient coating with O element content increasing from inside to outside was formed. The prepared coating has good heat resistance, which is suitable for high-speed cutting and improves processing efficiency.

Abstract: An ammonia-rich combustion coupled dual-mode prechamber ammonia-fueled engine control system is provided, including an ammonia-fueled engine and an electronic control unit. The ammonia-fueled engine includes a combustion chamber, a dual-mode jet ignition device, and an ammonia injector. The dual-mode jet ignition device includes a prechamber, an air injector, and a fuel injector. When the engine operates, ammonia fuel is firstly injected into the combustion chamber by the ammonia injector to form a rich ammonia-air mixture with air in the combustion chamber. During a compression stroke of the engine, the rich ammonia-air mixture in the combustion chamber is entered into the prechamber through a jet hole. The air injector performs scavenging in the prechamber until a equivalence ratio of prechamber gas mixture is less than 1.0, and then the fuel injector injects fuel into the prechamber forming target mixture. Finally, the target mixture is ignited by the spark plug.

Abstract: In a method of manufacturing a semiconductor device, an underlying structure is formed over a substrate. A film is formed over the underlying structure. Surface topography of the film is measured and the surface topography is stored as topography data. A local etching is performed by using directional etching and scanning the substrate so that an entire surface of the film is subjected to the directional etching. A plasma beam intensity of the directional etching is adjusted according to the topography data.

Abstract: A rolling-up screen includes a roller holder, a roller, a screen, a driving assembly, and multiple groups of supporting protection pieces. The roller holder is connected to a ceiling by a frame, or supported by a frame. The roller is rotatably connected between two plates of the roller holder. The screen includes display units in multiple rows and connected with the roller by hanging steel wire. The screen can be wound around the roller after retracting, and suspended below the roller by the hanging steel wire after unfolding. The driving assembly is arranged on the roller holder and connected with the roller to drive the roller to rotate, so as to enable the screen to be retracted and wound on the roller or unfolded and hung below the roller. The supporting protection pieces are arranged on the back surfaces of the display units in each row.

Abstract: A battery comprising a shell and a roll core disposed within the shell, the shell including a shell body and an end cap component, one end of the shell body being provided with an opening, another end of the shell body being provided with a sealing portion, the opening being plugged by the end cap component, the roll core including a first tab and a second tab, the end cap component being provided with a pressure-relief structure, an outside wall of the sealing portion being provided with a first terminal and a second terminal at intervals, the first terminal and the second terminal being insulatively disposed, the first tab being connected to the first terminal, and the second tab being connected to the second terminal.

Abstract: The application discloses an engineered phosphatidylserine decarboxylase (PSD protein) and use thereof, a fusion protein comprising the engineered PSD protein and use thereof, a nucleic acid molecule for encoding the engineered PSD protein or the fusion protein, an expression vector comprising the nucleic acid molecule, an engineered cell comprising the nucleic acid molecule or the expression vector, a method for preparing an engineered extracellular vesicle, an engineered extracellular vesicle and use thereof. In this application, an engineered phosphatidylserine decarboxylase is used for catalyzing phosphatidylserine on the surface of an extracellular vesicle, so that phagocytosis of macrophages is reduced, in-vivo clearance is reduced, and the circulation time of the extracellular vesicle is prolonged.

Abstract: A battery cell includes A anode electrodes, C cathode electrodes, and S separators arranged between the A anode electrodes and the C cathode electrodes, where A, C, and S are integers greater than one. The S separators include a composite gel membrane that is cured in-situ using ultraviolet light and includes a polymer, a solid electrolyte comprising greater than 20 wt % of the composite gel membrane, an initiator, and a liquid electrolyte.

Abstract: A video bitstream including coded information of a current block in a current picture is received. The current block is divided into a plurality of subblocks based on a region division shape of a plurality of region division shapes that is associated with an intra prediction mode of the current block. A weight set is determined for each of the plurality of subblocks, where the weight set includes a first weight for an intra prediction of the respective subblock and a second weight for an inter prediction of the respective subblock. Each of the plurality of subblocks is reconstructed based on the weight set, the intra prediction, and the inter prediction that are associated with the respective subblock.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information indicating a power offset, per resource block, between one or more first resource blocks to carry acknowledgement/negative acknowledgement feedback and one or more second resource blocks in a common interlace. The UE may transmit, using the power offset and using a transmission power that depends on whether a downlink pathloss value is indicated in the configuration information, a physical sidelink feedback channel transmission in the one or more first resource blocks and the one or more second resource blocks. Numerous other aspects are described.

Abstract: Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a first sidelink user equipment (UE) may include transmitting, to a second sidelink UE, a first sidelink synchronization block (S-SSB) in a scheduled S-SSB slot, performing a first listen-before-talk (LBT) procedure in an unlicensed frequency band, and transmitting, to the second sidelink UE, a second S-SSB in a slot before a next scheduled S-SSB slot based on the first LBT procedure being unsuccessful.

Abstract: In an embodiment, during an overload or short circuit condition, a current limit circuit of an inverter is utilized in a pulse-by-pulse manner, which in turn causes the AC output of the inverter to operate in a hiccup mode (e.g., pulse-by-pulse based on and off dependent upon the output current) and automatically recover once the operating parameters (e.g., output current) are within the proper ranges. The pulse-by-pulse current limit circuit is configured to protect the switching circuits of the inverter from shorting or device failure during any peak operating voltage conditions by ensuring on/off timing accuracy of the inverter.

Abstract: A control method includes obtaining, in real time during operation of a movable platform, data of a plurality of sensors located at one or more arm assemblies of the movable platform, performing real-time calibration using the data to obtain a calibration result that characterizes a relative pose between the plurality of sensors, and performing movement control on the movable platform according to the calibration result.

Abstract: An HEMT device includes a semiconductor epitaxial layer, a source electrode, a drain electrode, a gate electrode, a field plate structure, a first passivation layer, and a second passivation layer. The gate electrode includes a gate foot and a gate cap. The field plate structure includes a first portion, a second portion, a third portion, an extension portion. The second passivation layer has a first groove. The first groove has a first sidewall and a second sidewall. The first sidewall forms a first inclining angle with an imaginary line parallel to a gate length direction. The second sidewall and the imaginary line form a second inclining angle. Both of the first inclining angle and the second inclining angle are formed outside the first groove, and the first inclining angle is greater than the second inclining angle. A method for manufacturing the HEMT device is also provided.

Abstract: A method of manufacturing a semiconductor device includes forming a photoresist layer over a substrate. A first precursor and a second precursor are combined. The first precursor is an organometallic having a formula: MaRbXc, where M is one or more of Sn, Bi, Sb, In, and Te, R is one or more of a C7-C11 aralkyl group, a C3-C10 cycloalkyl group, a C2-C10 alkoxy group, and a C2-C10 alkylamino group, X is one or more of a halogen, a sulfonate group, and an alkylamino group, and 1?a?2, b?1, c?1, and b+c?4, and the second precursor is one or more of water, an amine, a borane, and a phosphine. The photoresist layer is selectively exposed to actinic radiation to form a latent pattern. The latent pattern is developed by applying a developer to the selectively exposed photoresist layer.

Abstract: Provided herein are methods for determining the serotype of a virus particle and/or or determining the heterogeneity of a virus particle (e.g., an AAV particle). In other embodiments, the invention provides methods to determine the heterogeneity of AAV particles. In some aspects, the invention provides viral particles (e.g., rAAV particles) with improved stability and/or improved transduction efficiency by increasing the acetylation and/or deamidation of capsid proteins.

Abstract: Provided herein are methods and compositions relating to adenosine A2A receptor libraries having nucleic acids encoding for a scaffold comprising an adenosine A2A binding domain. adenosine A2A receptor libraries described herein encode for immunoglobulins such as antibodies.

Abstract: The present invention relates to a cationic material for tooth desensitization, a preparation method therefor, and an application thereof, for use in solving the technical problems in the prior art of long time consumption and limited treatment effect of materials for dentin hypersensitivity. The cationic material comprises a main chain skeleton polymer and a cationic group derived on the main chain skeleton polymer, and the main chain skeleton polymer is connected to the cationic group by means of a covalent bond. The present invention can be used for preparing a drug for treating the dentin hypersensitivity.

Abstract: A chip testing method and apparatus are provided, and the method includes: providing a plurality of chips, each of the chips including an input pin, an output pin, and a state machine circuit; connecting the input pin of each of the chips to a same input start module which outputs a start signal to each of the chips to start the state machine circuits; configuring the state machine circuit of each of the chips to output a test excitation to test the chips and obtain a test result; and connecting the output pin of each of the chips to a same testing module which outputs the test result of each of the chips.

Abstract: A method for indicating a relationship is performed by a terminal. The method includes: determining a mapping relationship between a slice group and a slice corresponding to at least one of an area where the terminal is located or an adjacent area of the area by receiving, through an access stratum (AS), an indication from a non-access stratum (NAS).