Abstract: A battery cell includes a housing, a first end cover assembly, a second end cover assembly and an electrode assembly. Openings are provided on ends of the housing opposite to each other. The first end cover assembly and the second end cover assembly are configured to respectively cover two openings of the housing. The electrode assembly includes a body part, a first tab and a second tab. The first tab extends from a first end face of the body part facing the first end cover assembly and is configured to be connected with the first end cover assembly. The second tab extends from a second end face of the body part facing the second end cover assembly and is configured to be connected with the second end cover assembly.

Abstract: A cutting device of a silicon rod cutting system, and the silicon rod cutting system. The cutting device includes: a support frame, installed on a machine base of the silicon rod cutting system; two cutting machine head mechanisms, wherein each cutting machine head mechanism is provided with a diamond wire, a cutting segment of the diamond wire is used for cutting a silicon rod from top to bottom while moving; and a feeding mechanism, wherein the support frame is connected with the two cutting machine head mechanisms by means of the feeding mechanism, and the two cutting segments are disposed opposite to each other; and the feeding mechanism is used for driving the two cutting machine head mechanisms to move towards and away from each other, so as to adjust the distance between the two cutting segments.

Abstract: A breezeless structure and an air conditioner are provided. The breezeless structure has an air dispersing structure, which has a stationary blade assembly and a rotating member spaced apart from each other in an air-flowing direction. The rotating member is rotatable relative to the stationary blade assembly. The stationary blade assembly has a plurality of stationary blades spaced apart from each other in a circumferential direction of the stationary blade assembly. The rotating member has a plurality of rotating blades spaced apart from each other in a circumferential direction of the rotating member. Each rotating blade is obliquely disposed to allow air to flow on opposite side walls of the rotating blade. Alternatively or additionally, each stationary blade is obliquely disposed to allow air to flow on opposite side walls of the stationary blade.

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: A system including a processor and non-transitory computer-readable media storing computing instructions that, when executed on the processor, perform a method that includes training a machine learning model by using a training data set to determine taxonomy embeddings for taxonomies based on training features that include a context word vector, a center word vector, and a probability. The probability corresponds to a function between the context word vector and the center word vector. The taxonomy embeddings represent at least a first level of a taxonomy and a second level of the taxonomy. The machine learning model, as trained, is used to determine the taxonomy embeddings based on taxonomy identifiers and reduce the taxonomy embeddings by removing at least one taxonomy of the taxonomies that are below a threshold to thereby reduce the taxonomies. The threshold comprises a number of aggregate page views.

Abstract: Disclosed are a display substrate, a liquid crystal display panel (100) and a display device. The display substrate (9) includes: a base substrate (1), a plurality of sub-pixels arranged in an array on the base substrate, a plurality of data lines (D) extending in a first direction (X), a plurality of gate lines (G) extending in a second direction (Y), and a common electrode (2) arranged in a minimum area enclosed by the data lines and the gate lines; wherein the minimum area includes two sub-pixels, the common electrode includes a main electrode (21) with strip-shaped which is arranged at the junction of the two sub-pixels and a plurality of branch electrodes (22) with strip-shaped which are symmetrically distributed on two sides of the main electrode, and the extending directions of a part of the plurality of branch electrodes arranged on a same side of the main electrode are identical.

Abstract: Provided in the present disclosure are a cleaning apparatus, a cleaning device, and a changeover valve assembly. The cleaning apparatus includes a main body, a vacuum motor and a heating air output assembly, where an axial direction of the vacuum motor is parallel to a forward direction of the main body, an air inlet end of the vacuum motor is arranged on one side of the vacuum motor facing the forward direction, and projections of the air inlet end of the vacuum motor and the heating air outlet assembly on a horizontal plane at least partially coincide, such that the efficiency of sewage recovery can be improved, and sewage residue in an area that is cleaned is thus reduced.

Abstract: The present disclosure relates to the technical field of computers. Provided are a positioning and paying method, apparatus and system based on the Internet of Vehicles. A specific implementation of the method comprises: an in-vehicle client obtains position information of a vehicle on the basis of the Internet of Vehicles; and a management server determines a corresponding service entity for the vehicle on the basis of the position information, so as to automatically complete a fee payment operation by using a first digital currency wallet that is included in the in-vehicle client and a second digital currency wallet that is included in the service entity. Thus, the problems of a low degree of automation and a low payment efficiency caused by manual fee payment are overcome, thereby enhancing the user experience.

Abstract: An apparatus includes a light source operable to produce light having a wavelength, an optical component disposed over the light source so as to intersect a path of light produced by the light source, and at least one electrically conductive trace on a surface of the optical component. A drive controller is operable to regulate optical output power of the light source. The at least one electrically conductive trace is coupled electrically to the drive controller, which is operable to monitor an electrical characteristic of the at least one electrically conductive trace, and to reduce the optical output power of the light source if a value of the electrical characteristic is indicative of a possible eye-safety hazard.

Abstract: A composite polyester hot-melt adhesive, a preparation method thereof and a preparation method of an anti-scouring geotextile are provided. The preparation method of the composite polyester hot-melt adhesive includes the following steps: performing an esterification reaction on a dibasic acid and a dihydric alcohol under a protection of nitrogen and an action of a titanium/cobalt composite catalyst, adding a stabilizer for a polycondensation reaction to obtain a polyester hot-melt adhesive, then adding polymethyl methacrylate (PMMA) microspheres for mixing and stirring to obtain the composite polyester hot-melt adhesive. The anti-scouring geotextile is obtained by bonding a polyethylene terephthalate woven fabric with a polypropylene geotextile by the composite polyester hot-melt adhesive.

Abstract: Embodiments of the application provide a display panel, a display screen and a display device. The display panel includes a backplane, a color filter layer, and a black matrix between the backplane and the color filter layer. The backplane includes a base substrate, the color filter layer includes a plurality of sub-pixel color filters, and the plurality of sub-pixel color filters are arranged along a plane of the color filter layer and spliced together to form the color filter layer.

Abstract: A data deletion notification service registers data repositories that store personal data. The service receives requests from users to delete personal data, sends notifications of the deletion requests to the registered data repositories, and stores deletion records recording the deletions and a timestamp associated with the deletion request. The service may wait for confirmation of the deletions from the data repositories, resending the deletion requests if a confirmation is not received, and recording confirmation in an audit record. Data repositories performing a restoration may request, from the service, a list of users that have requested deletion of personal data since the time of the creation of the backup used for restoration. The service may generate, based on deletion records with corresponding timestamps, the list of users and respond to the request with the list. Confirmations of the deletions may be tracked, stored and made available via an audit interface.

Abstract: A system and method for determining a critical suspension speed of an impeller in a solid-liquid stirred tank belongs to the technical field of critical speed determination. A relationship is established between a voltage of a measurement electrode and a solid-liquid suspension state to avoid the problems of strong subjectivity and large deviation appearing in existing critical suspension speed determination based on empirical formulas and human eye observation. An electrode voltage ratio is taken as a determination criterion, which is only related to a spatial density of solid particles in a liquid phase.

Abstract: An electric connection mechanism with airbag type formation probe for soft pack batteries includes a queue formed by aluminum plates which are parallel to each other and arranged at intervals, upper and lower sliding blocks, a first airbag unit arranged on the front surface, and a secondary airbag unit arranged on the rear surface. The outer side of the first airbag unit is provided with a tab contact plate, the outer side of the secondary airbag unit is provided with an airbag pressing plate, ends of the aluminum plate are inserted into a sleeve formed by the first airbag unit, the second airbag unit, and the upper and lower sliding blocks. A reset mechanism is arranged between the ends of the tab contact plate and the upper or lower sliding block, and between the ends of the airbag pressing plate and the upper or lower sliding block.

Abstract: An anode material, a preparation method thereof, and a secondary battery provided. The anode material includes a secondary particle, the secondary particle includes aggregated primary particles, and the primary particle and the secondary particle satisfy following relationships: 10?D250/D1max?40 (I), D2min/D250?0.08 (II) and D250/D2max?0.24 (III), in Formulas (I), (II) and (III), D1max represents a maximum particle size of the primary particle, D250 represents a median particle size of the secondary particle, D2min represents a minimum particle size of the secondary particle, and D2max represents a maximum particle size of the secondary particle. By defining particle size relationship between the primary particle and the secondary particle, and particle size distribution of the secondary particle, the primary particle and the secondary particle have a good matching degree, which improve cycling stability of the anode material and at the same time reduce volume expansion effect of the anode material.

Abstract: Some embodiments provide cell, a battery and an electricity consuming device. The battery cell includes a shell, a pressure relief mechanism, an electrode assembly and an insulating member. The pressure relief mechanism is disposed on the shell. The electrode assembly is accommodated within the shell. The insulating member is accommodated within the shell, at least a portion of the insulating member is located between the pressure relief mechanism and the electrode assembly, and a portion of the insulating member located between the pressure relief mechanism and the electrode assembly is provided with a first weak portion.

Abstract: The application provides an electrode assembly, a battery cell, a battery and an electric device. The electrode assembly includes a main body and at least one electrode tab. The electrode tab includes a plurality of sub electrode tabs extending from an end of the main body and arranged in stacked layers. The plurality of sub electrode tabs are connected by welding and forming a welding portion. The welding portion includes a thinned region. A thickness of the thinned region is less than a maximum thickness of the welding portion. The production efficiency and yield of batteries can be enhanced.

Abstract: A gearshift overlap control system and a control method for improving vehicle dynamic response includes a gearshift progress calculation module: the gearshift progress calculation module is capable of calculating a gearshift progress in real time; a clutch control module: the clutch control module is capable of executing a first power-on downshift control and starting to perform a second power-on downshift control when a set second power-on downshift in a corresponding gearshift progress is requested; and an iterative learning control module: the iterative learning control module is capable of automatically adjusting a first on-coming clutch control pressure and a first off-going clutch control pressure in the first power-on downshift by means of monitoring the overshoot of the gearshift progress.

Abstract: Embodiments of the present disclosure disclose a display panel and a display device. The display panel includes: a base substrate, a light-emitting device located on the base substrate, a first flat layer located on a side of the light-emitting device away from the base substrate, and a black matrix located on a side of the first flat layer away from the base substrate, wherein the black matrix has a plurality of opening regions, and color filters are arranged in corresponding opening regions; the color filters are configured to filter external incident light; and the first flat layer has a plurality of first concave faces arranged corresponding to the opening regions, the color filters fill the first concave faces, and the color filters further cover peripheral regions of the first concave faces.

Abstract: A semiconductor device includes one or more fins. Each fin includes a top channel portion formed from a channel material, a middle portion, and a bottom substrate portion formed from a same material as an underlying substrate. An oxide layer is formed between the bottom substrate portion of each fin and the isolation layer, with a space between a sidewall of at least a top portion of the isolation dielectric layer and an adjacent sidewall of the one or more fins, above the oxide layer. A gate dielectric, protruding into the space and in contact with the middle portion, is formed over the one or more fins and has a portion formed from a material different from the oxide layer.