Abstract: A three-dimensional scanning system, a method and a mobile computing module are provided. The three-dimensional scanning system includes a three-dimensional scanner, a computing module, and a display module The computing module is connected to the three-dimensional scanner to obtain target three-dimensional data generated by the three-dimensional scanner, and perform a calculation of a three-dimensional reconstruction according to the target three-dimensional data to generate a first three-dimensional model. The display module is connected to the computing module to obtain the first three-dimensional model generated by the computing module, and display the first three-dimensional model in real time.

Abstract: A resource scheduling method, device, and system, and a storage medium. The method includes: acquiring a target resource allocation object to be scheduled; allocating, from a plurality of candidate scheduler instances, a target scheduler instance for the target resource allocation object, and pre-allocating, by the target scheduler instance and from a resource node cluster, a resource node for the target resource allocation object, to obtain a pre-allocated resource node corresponding to the target resource allocation object; performing conflict detection on the pre-allocated resource node based on an optimistic concurrency strategy, and preempting the pre-allocated resource node after passing the conflict detection; and scheduling the target resource allocation object to run on the pre-allocated resource node.

Abstract: Selecting one or more lists of fields of view of a pattern layout for scanning electron microscope measurement and/or other inspection. A set of candidate fields of view is determined based on pattern groups of a pattern layout and a constraint on a characteristic of a given field of view. The characteristic of a given field of view includes a distance from the given field of view to another field of view and/or a size of the given field of view. The one or more lists are selected from the set of candidate fields of view according to prescribed criteria for combinations of fields of view included in the one or more lists. The prescribed criteria causes inclusion of an optimally diverse group of patterns in a predetermined number of lists of fields of view.

Abstract: An electrical connector includes a housing having a base portion and a tongue portion, two rows of terminals having signal terminals and ground terminals, a grounding member, and a metal shell. The grounding member is formed by bending a metal plate to have two long plates with fingers in contact with corresponding ground terminals. The base body defines a mating face and an outer face. A positioning groove is formed between a first side plate and the outer wall face. The metal shell is provided with an inner plate of which the lower edge is cut into a specific shape to form a locking edge. The metal shell has an inner shell and an outer shell.

Abstract: An electrical connector assembly includes an electrical plug connector and an electrical receptacle connector. The electrical plug connector includes plug fixation members. The electrical receptacle connector includes receptacle fixation members. Through the engagement between the plug fixation member and the receptacle fixation member, upon using the electrical connector assembly, the electrical plug connector can be ensured not to detach from the electrical receptacle connector. Moreover, with simple operations of the plug fixation member and the receptacle fixation member, the electrical plug connector can be detached from the electrical receptacle connector smoothly.

Abstract: The invention belongs to the technical field of waste cloth recovering and reusing, and particularly relates to waste-cloth-containing recovered fiber coating slurry and coating, and a preparation method thereof. 0.5-8 parts by weight of recovered fiber of waste cloth, 95-110 parts by weight of waterborne polyurethane, and 4-6 parts by weight of curing agent are prepared into recovered fiber coating slurry. The recovered fiber coating slurry is printed on a base cloth or a base plate, and dried to obtain a recovered fiber coating having a thickness of 0.1-1.0 mm. According to the technical solution provided by the invention, the field of physical method recycling of waste cloth is expanded to coating. Because the particle size of recovered fiber of the waste cloth is fine, the recovered fiber coating obtained by mixing waterborne polyurethane with a curing agent in a proper proportion has excellent abrasion resistance and mechanical properties.

Abstract: An automatic and rapid detection method of a gradation for an asphalt mixture and an automatic device are provided. The method includes: asphalt mixture introduction; asphalt mixture dehydration, including: heating the asphalt mixture and dehydrating to a target dehydration rate; asphalt combustion, including: burning the asphalt mixture by using a combustion method to form smoke to be removed, thereby obtaining aggregates, and obtaining an asphalt content; aggregate screening, including: grading through screening the aggregates according to different particle sizes by using a vibration screening device, and then weighing the aggregates, thereby obtaining weights of the aggregates; and obtaining the gradation, including: calculating the gradation for the asphalt mixture according to the weights of the aggregates with the different particle sizes and the asphalt content.

Abstract: A period determination circuit for determining conduction period for energy-recycling circuit includes an indication circuit, coupled to an inductor of the energy-recycling circuit to receive an inductor voltage, configured to generate an indication signal according to the inductor voltage, wherein the indication signal reflects a status corresponding to a first conduction period of the energy-recycling circuit; and a control signal generator, coupled to a switch of the energy-recycling circuit, configured to generate a control signal with a second conduction period for the switch according to the indication signal. The energy-recycling circuit is coupled to a first capacitive component and a second capacitive component. The energy-recycling circuit comprises the inductor and the switch coupled between the first capacitive component and the second capacitive component. The control signal generator determines the second conduction period according to the first conduction period and the indication signal.

Abstract: A demodulation signal generator, coupled to an air-pulse generator comprising a flap pair, includes a resonance circuit. The resonance circuit produces a first demodulation signal and a second demodulation signal. The resonance circuit and the flap pair co-perform a resonance operation, such that the first demodulation signal and the second demodulation signal are generated via the co-performed resonance operation and have opposite polarity. The flap pair performs a differential movement to form an opening to perform a demodulation operation on a modulated air pressure variation.

Abstract: A board-to-board connector assembly includes: a plug connector having: a second body having a second slot and a second sidewall; and third metal members; and a socket connector having: a first body having an island, a first slot, and a first sidewall; and first and second metal members. The first metal members are disposed in the first body and extend from a bottom of the first sidewall to the island through the first slot. The second metal members are disposed in the first body, and straddles and covers a portion of the first sidewall. The third metal members are disposed in the second body, and straddle and cover a portion of the second sidewall. When the connectors are mated, the second sidewall is inserted into the first slot, the island is inserted into the second slot, and the third metal members are pressed against the first and second metal members.

Abstract: The present invention discloses an unlocking mechanism, a support assembly, a battery pack unlocking method, and a battery pack locking method. The unlocking mechanism is used for unlocking a battery pack locked on a support of an electric vehicle. The unlocking mechanism comprises an unlocking input member and an unlocking output member; the unlocking input member is adapted to be connected to an external unlocking drive portion, and is driven by the external unlocking drive portion to drive the unlocking output member to move; the unlocking output member is adapted to be connected to a locking mechanism on the support and drive the locking mechanism to move to unlock or lock the battery pack. The unlocking input member is connected to the external unlocking driving portion to be driven to move, to drive the locking mechanism to move to achieve the purpose of unlocking or locking the battery pack.

Abstract: An electrical connector includes: an insulating housing having two side walls and a longitudinal mating slot between the two side walls; a row of terminals located at the side wall and comprising plural pairs of signal terminals and plural grounding terminals in a longitudinal direction, each terminal including an elastic arm with a contacting portion, a tail portion and a middle fixing portion between the elastic arm and the tail portion; and a grounding member located between the side wall and the row of the terminals and extending in the longitudinal direction, wherein the grounding member includes plural grounding portions extending inwards and contacting corresponding grounding terminals and plural attached portions extending outwards, and the attached portions are aligned with corresponding grounding portions in a transverse direction perpendicular to the side walls.

Abstract: The present invention provides a downhole hydraulic directional control valve, comprising a valve body assembly having a shell, an outer tube being provided in the shell, a middle joint connecting the outer tube and an upper cylinder, an outer cylinder connected to the upper cylinder, and a double-way joint being provided with an oil inlet hole, and connecting top ends of the outer cylinder and an inner cylinder; a valve core assembly having an upper valve core, and a lower valve core being positioned at bottom end of the upper valve core and further positioned in a lower cylinder at bottom end of the middle joint; and, a plunger assembly having a first plunger part positioned in the inner cylinder and a second plunger part at bottom end of the first plunger part. By using this valve, the operation efficiency is improved, and the reliability of the equipment is ensured.

Abstract: Selecting an optimized, geometrically diverse subset of clips for a design layout for a semiconductor wafer is described. A complete representation of the design layout is received. A set of representative clips of the design layout is determined such that individual representative clips comprise different combinations of one or more unique patterns of the design layout. A subset of the representative clips is selected based on the one or more unique patterns. The subset of the representative clips is configured to include: (1) each geometrically unique pattern in a minimum number of representative clips; or (2) as many geometrically unique patterns of the design layout as possible in a maximum number of representative clips. The subset of representative clips is provided as training data for training an optical proximity correction or source mask optimization semiconductor process machine learning model, for example.

Abstract: Systems and methods for evaluating selected set of patterns of a design layout. A method herein includes obtaining (i) a first pattern set resulting from a pattern selection process, (ii) first pattern data associated with the first pattern set, (iii) characteristic data associated with the first pattern data, and (iv) second pattern data associated with a second pattern set. A machine learning model is trained based on the characteristic data, where the machine learning model being configured to predict pattern data for an input pattern. The second pattern set is input to the trained machine learning model to predict second pattern data of the second pattern set. The first pattern set is evaluated by comparing the second pattern data and the predicted second pattern data. If the evaluation indicates insufficient pattern coverage, additional patterns can be included to improve the pattern coverage.

Abstract: A quick-swapping bracket assembly with high locking stability and electric vehicle comprising the same, the quick-swapping bracket assembly comprises a vehicle body bracket and a lock base. The lock base is fixed onto the electric vehicle by means of the vehicle body bracket, the opening of the lock base is arranged at the bottom, and the battery box enters the slideway through the opening at the bottom, so that the battery box is locked in the slideway and avoid the battery box entering the slideway from the side of the lock base, which can avoid the lock shaft being skidded out from one side of the lock base and improve the safety of the battery box being locked.

Abstract: A driving circuit comprises a first capacitor. During a sampling operation, the first capacitor is coupled between a first and a second input terminals. During a transferring operation, an end of the first capacitor receives a voltage and another end of the first capacitor is coupled to a load. The driving circuit produces a first driving signal to drive the load, the first driving signal comprises a plurality of first portions with a first polarity and a plurality of second portions with a second polarity opposite to the first polarity. The plurality of first portions and the plurality of second portions form a generalized DSB-SC modulated component of the first driving signal, which is modulated according to an input signal between the first input terminal and the second input terminal.

Abstract: Disclosed is a battery pack for an electric vehicle and an electric vehicle comprising the same, and the battery pack for an electric vehicle comprises: a cabinet, at least two accommodating cabinets for accommodating the battery modules are provided within the cabinet, and the two accommodating cabinets are arranged at intervals to form a clearance; a locking matching mechanism arranged in the clearance, and a locking point of the locking matching mechanism and the locking mechanism on a vehicle body longitudinal beam is lower than an upper end of the accommodating cabinet. When the battery pack is mounted on the vehicle, it leaves more height space for a battery swapping device, so that the cost, time and difficulty of building the battery swapping station are reduced, the requirements of the construction site to build a station is reduced, and the efficiency of battery swapping is improved.

Abstract: The invention discloses an electric vehicle, and the electric vehicle comprises vehicle beams and a battery unit, and the battery unit comprises a plurality of battery packs arranged side by side along a width direction of the vehicle beams; and a locking unit is arranged on the vehicle beams, and a connecting unit is arranged between the two adjacent battery packs corresponding to the vehicle beams, and the connecting unit is matched with the locking unit to lock and connect the battery unit to the vehicle beams. In this invention, the battery unit is provided with a plurality of battery packs, which is capable for supplying power to a heavy electric vehicle. The connection between the battery unit and the vehicle beams can also be located in the space between the battery packs to improve the connection stability.