Abstract: Provided are end cover, battery cell, battery and electrical device. An end cover is configured to close an opening of housing of battery cell, wherein the end cover includes an abutting portion and a first convex portion. The abutting portion includes an abutting surface, wherein the abutting surface is configured to abut against one end of the housing provided with the opening. The first convex portion is connected to the abutting portion and protrudes from the abutting surface. The first convex portion is configured to extend into the housing. The groove is arranged on the abutting surface, and the groove is arranged around the first convex portion. An external peripheral surface of the first convex portion is connected to the abutting surface through the groove wall surface of the groove.

Abstract: The present disclosure provides an anode material and a lithium ion battery. The anode material comprises a composite, and the composite comprises a carbon matrix and an active material located in the carbon matrix, the active material comprises primary particles and/or agglomerates and aggregates, and a proportion of the aggregates in a total number of the primary particles, the agglomerates and the aggregates is smaller than or equal to 30%. According to the anode material and the lithium ion battery provided by the present disclosure, the volume expansion of the anode material can be reduced, and the rate performance and the cycle stability of the anode material are improved.

Abstract: An intake manifold for an engine includes a premixing chamber, a pressure stabilizing chamber, and multiple intake passages. The intake passages are connected with a bottom of the pressure stabilizing chamber. A first end of the premixing chamber includes an intake end having an air inlet. A second end of the premixing chamber is communicated with the pressure stabilizing chamber and is close to a top of the pressure stabilizing chamber. An exhaust gas inlet is disposed on the premixing chamber and close to the air inlet. The engine includes an engine body and the intake manifold for the engine. The vehicle includes a vehicle body and the engine.

Abstract: The disclosure discloses a penetrating cushion damping device comprising a penetrator, and belongs to the field of in-situ penetrating exploration of extraterrestrial celestial bodies. A magnetic conductor encloses the non-penetrating end of the penetrator, a drag plate connected to the penetrator is provided at the lower end face of the magnetic conductor, and a magnetic source structure for generating magnetic force on the magnetic conductor is provided in the non-penetrating end of the penetrator. The disclosure utilizes the penetrating cushion anti-drag mode with the drag plate and the electromagnetic structure, which is self-adaptive to the flight penetration speed and compact in structure, reduces the jump probability, and further reduces the cushion resistance after the speed is reduced.

Abstract: Provided in the present application are a data processing method and apparatus based on data coding, and a device. The method comprises: performing N-channel error correction coding on data to be processed that is in information to be processed, so as to obtain N pieces of coded data to be processed; by using coded meta-channel data obtained by means of error correction coding, performing redundancy processing on the coded data to be processed, so as to obtain N pieces of response data; and then performing error correction decoding on the N pieces of response data, so as to obtain processing result information of the information to be processed.

Abstract: A method for training a deep reinforcement learning model includes performing a training process. The training process including the following operations acquiring initial dose distribution state data of an objective target volume; determining, based on the initial dose distribution state data of the objective target volume and current policy data of the actor network and the critic network, output data of a plurality of sub-threads in parallel by using the plurality of sub-threads; and updating the current policy data of the actor network and the critic network based on the output data of each sub-thread of the plurality sub-threads in sequence, so as to complete a current training for the deep reinforcement learning model; and iterating the training process until a count of training the deep reinforcement learning model reaches a preset count, so as to obtain the deep reinforcement learning model that has been trained.

Abstract: Methods for training a deep reinforcement learning model for generating a treatment plan and an electronic device are provided in the present disclosure. The method may include performing a training process. The training process includes obtaining initial dose distribution state data of an objective target volume; determining target data based on the initial dose distribution state data of the objective target volume, current policy data of a plurality of actor network layers, and current policy data of a critic network layer; and completing the current training by updating the current policy data of the plurality of actor network layers and the current policy data of the critic network layer based on the target data; and obtaining a trained deep reinforcement learning model by iterating the training process until a count of iterating the training process reaches a preset value.

Abstract: The present application disclose a device for preparing rock samples with different moisture contents, which comprises a sample container, wherein two ends of the rock sample are respectively connected with a first steam inlet and a first steam outlet of the sample container; the first steam outlet, a pump and a gas-liquid separator are connected in sequence, a gas outlet end of the gas-liquid separator, a steam compressor and the first steam inlet are connected in sequence, and a liquid outlet end of the gas-liquid separator, a steam generator and the steam compressor are connected in sequence. The water vapor in the sample container is pumped into the gas-liquid separator by the pump to separate low-temperature water vapor and condensate, and the low-temperature water vapor and condensate form high-temperature and high-pressure steam again and return to the inside of the sample container. The water in the steam generator always circulates inside the preparation device.

Abstract: An anode material, a preparation method thereof, and a lithium ion battery provided. The anode material includes a core and a coating layer arranged on at least part of a surface of the core, where the core includes porous carbon and active material filling in pore structure of the porous carbon, the porous carbon has a first pore structure with a pore size less than or equal to 2 nm and a second pore structure with a pore size greater than 2 nm, a ratio of a pore volume of the first pore structure to a total pore volume of the porous carbon is greater than or equal to 40%, and the second pore structure has a filling ratio greater than or equal to 95%. The anode material can effectively inhibit volume expansion and have advantages of high rate performance, a high capacity, and good cycling performance.

Abstract: A display substrate includes a base substrate, pixel units, and data lines. At least one sub-pixel includes a common electrode, which includes a dark region electrode portion and a light transmitting region electrode portion. The common electrode is provided with slits, an end portion of at least one slit has first to third portions, and the second portion is between the first portion and the third portion. In the first direction, the first portion is arranged side by side with an adjacent dark region electrode portion in the first direction, the second portion is arranged side by side with a part of an adjacent light transmitting region electrode portion, and the third portion is arranged side by side with another part of the adjacent light transmitting region electrode portion in the first direction. An inclination of the second portion is greater than that of the third portion and less than that of the first portion.

Abstract: An adaptive frequency sweeping method and an adaptive frequency sweeping system for frequency point sampling, and related devices, related to a technical field of wireless communication are provided, the adaptive frequency sweeping method is applied to simulation of radio frequency (RF) components. The adaptive frequency sweeping method for the frequency point sampling does not hinge upon specific numerical values and enables precise simulation at positions where frequency responses rapidly change while performing coarse simulation in areas that are not concerned about, thereby improving precision and efficiency of a design process for the RF components. Moreover, aiming at characteristics of Y parameters and S parameters in the frequency responses, different evaluation metrics are provided to reduce sampling points required for frequency sweeping and increasing a frequency sweeping speed.

Abstract: The invention provides a carbon dioxide-based polyurethane elastomer with damping and anti-fatigue aging properties and its preparation method. It is obtained from Component A and Component B; Component A includes: PTMG-1000 45˜60 parts, carbon dioxide-based polyol 25˜30 parts, poly-DOPO-ITA-pentanediol ester 10˜20 parts, BDO 3˜5 parts, water 0.3˜0.5 parts, N-methylimidazole 0.5˜0.8 parts, bis(2-dimethylaminoethyl) ether 0.1˜0.2 parts, needle-shaped nano-titanium dioxide 0.5 parts, hindered phenol 0.2˜0.5 parts, dibutyltin dilaurate 0.1˜0.3 parts, strontium chloride 0.005˜0.01 parts, rhodium chloride 0.02˜0.03 parts, foaming agent 0.2˜0.5 parts; Component B includes: carbon dioxide-based polyol 50˜55 parts, MDI-50 45˜50 parts, organic zinc 0.01˜0.02 parts, organic bismuth 0.01˜0.02 parts.

Abstract: A battery cell includes a shell, an electrode terminal, and a blocking member. The shell includes a wall portion having a lead-out hole. The electrode terminal includes an insertion portion and a flange portion connected in an axial direction of the electrode terminal. The insertion portion is in the lead-out hole, the flange portion is at the side of the insertion portion away from the inside of the shell in a radial direction of the electrode terminal, an outer peripheral surface of the flange portion is partially beyond an outer peripheral surface of the insertion portion, and the electrode terminal has a recessed portion arranged in the axial direction. The blocking member blocks the recessed portion and includes a body that covers the side of the flange portion away from the insertion portion and connected to the flange portion. The battery cell is electrically connected externally through the blocking member.

Abstract: Provided are a data processing system and method based on dynamic redundancy heterogeneous encoding, and a device. The method comprises: respectively performing error correction encoding on information to be processed and a processing rule, so as to form encoded information to be processed and an encoded processing rule; processing, by using the encoded processing rule, the encoded information to be processed, so as to obtain response data; and then performing error correction decoding on N pieces of response data, so as to obtain processing result information of the information to be processed.

Abstract: Provided are a battery cell, a battery, and a power consuming device. The battery cell includes: a shell including a plurality of side plates that enclose an end opening of the shell; an electrode assembly arranged in the shell; and an end cap arranged at the end opening, the end cap including a plurality of edge portions that are fixedly connected to an end surface of the end opening and respectively correspond to the plurality of side plates, wherein the plurality of side plates include a first side plate and a second side plate with different thicknesses, and the plurality of edge portions include a first edge portion corresponding to the first side plate and a second edge portion corresponding to the second side plate.

Abstract: Provided are a battery cell, a battery and an electricity consumption device. The battery cell includes: an electrode assembly which includes a body portion and a tab extending from the body portion; a housing configured to accommodate the electrode assembly and provided with a first opening; a first end cover configured to cover the first opening; and a tab support located between the first end cover and the body portion and configured to support the tab, wherein the first end cover is provided with a first clamping structure, the tab support is provided with a second clamping structure, and the first clamping structure is clamped with the second clamping structure. By means of the technical solutions in the embodiments of the present application, the reliability of the battery cell can be improved.

Abstract: An end cover includes: a cover body and a reinforcing portion. The cover body is configured to close an opening of a case of the battery cell, and the cover body has a first surface along a thickness direction of the cover body. The reinforcing portion protrudes from the first surface, and the reinforcing portion is configured to reinforce the cover body.

Abstract: A use of iron oxide nanoparticles (IONPs) in the preparation of a parathyroid gland and/or lymph node contrast agent is provided, where the particle size of the IONPs is from 1 nm to 1,000 nm, the polydispersity index is less than 0.3, the zeta-potential is from ?50 to 50 mV, and the peak value of an ultraviolet-visible absorption spectrum is from 100 nm to 500 nm. The IONPs may accurately image parathyroid glands with negative contrast and trace lymph nodes based on color contrast detected under visible light.

Abstract: The present disclosure provides a garden blower, including a housing and a duct assembly, the duct assembly includes an outer duct, a motor fan blade assembly and a guide cone; the outer duct and the rear casing are arranged in such a way that there is an annular interval therebetween, and a plurality of first anti-vibration components are arranged between the outer duct and the holding casing; the first anti-vibration components are close to the motor fan blade assembly, and form a first anti-vibration plane perpendicular to the motor axis of the motor fan blade assembly. This technical solution can suppress the transmission of vibration generated by the rotation of the motor fan blade assembly to other components, especially the holding casing, and effectively avoids the mutual influence between the vibration of the motor fan blade assembly and the disturbance of the rear casing caused by the airflow.

Abstract: An intent recognition method, an intent recognition apparatus, a storage medium and a computer device are provided, aiming to improve the accuracy and the efficiency of the intent recognition, which relates to the technical field of information. The method includes: acquiring user's audio to be recognized; determining multi-frame audio feature vectors corresponding to the audio to be recognized; inputting the multi-frame audio feature vectors into a preset intent recognition model to obtain multiple output sequences corresponding to the multi-frame audio feature vectors, wherein the output sequences comprise blank characters and non-blank characters; and determining a target intent corresponding to the audio to be recognized based on the multiple output sequences. The present disclosure is suitable for recognizing the intent of the user.