Abstract: The disclosure relates to a vehicle control method. The vehicle control method includes: receiving a first control instruction; sending a first output signal based on the first control instruction, where the first output signal is used to instruct a hydraulic parking system to start pressure build-up; and sending a second output signal upon the hydraulic parking system reaching a predetermined first state, where the second output signal is used to instruct an electronic parking system to start to be pulled up or released. The disclosure further relates to a vehicle control device, a computer-readable storage medium, and a vehicle. According to the vehicle control solution provided in the disclosure, a hydraulic parking system and an electronic parking system are controlled in a coupled manner in vehicle starting and stopping conditions, thereby providing a user with highly comfortable, reliable, and safe vehicle starting and stopping experience.

Abstract: Methods for enhanced error correction code for error detection and correction in multi-level cell-based memory devices are provided. The methods include receiving, at an error correction code (ECC) decoder hardware device, data encoded with ECC information from a multi-level cell-based memory device; calculating an error value and an error location for an error in the data using Reed-Solomon (RS) error correction code (ECC); determining an error type of the error, wherein the error type comprises one of no error, a single symbol error in the data, or multiple symbol errors in the data, and wherein determining the error type is based on a +1/?1 error constraint; and responsive to the error type comprising multiple symbol errors, repeating a read of the data from the multi-level cell-based memory device.

Abstract: Provided is a method for improved hand-eye calibration method based on a structured light camera. The method includes: step 1: establishing a pinhole camera model, and using a depth camera to detect a three-dimensional (3D) coordinate to obtain a physical coordinate of each point in an image coordinate system with a known depth relative to a camera coordinate system; step 2: establishing a Denavit-Hartenberg (DH) model of a robotic arm, and moving the robotic arm to a determined coordinate using inverse kinematics; step 3: collecting n sets of point cloud data, applying depth scaling coefficients to the n sets of point cloud data to perform Singular Value Decomposition (SVD), and solving for an optimal depth scaling coefficient using a Nelder-Mead algorithm; and step 4: completing the hand-eye calibration of the robotic arm based on the solved optimal depth scaling coefficient. The method offers strong operability and robustness.

Abstract: Disclosed is an experimental device and method for solubility determination of methane in oil-based drilling fluid, comprising a pressure-resistant gas chamber and an equilibrium still both arranged in a constant-temperature oil bath heating oven, a gas booster pump, and a vacuum system used for vacuuming the pressure-resistant gas chamber and the equilibrium still, and a data acquisition device for collecting temperature and pressure signals; the gas booster pump is connected to drive air source inlet, a gas check valve is arranged on the pipe between the pressure-resistant gas chamber and the gas booster pump that is also connected with a high-pressure gas cylinder, the equilibrium still is divided into a dissolution equilibrium chamber at the top and a hydraulic oil chamber at the bottom by a high-pressure dynamic seal structure, the dissolution equilibrium chamber is connected to a liquid inlet funnel through the fourth globe valve.

Abstract: Integrated automatic detection equipment includes a tractor, a first test vehicle and a second test vehicle. A central control system, a geometric linear detection system, a road three-dimensional (3D) detection system, and a laser 3D scanning system are arranged on the tractor. A front end of the first test vehicle is detachably connected to a rear end of the tractor, and a rear end of the first test vehicle is detachably connected to a front end of the second test vehicle. A drop hammer loading system is arranged on the first test vehicle. A bridge dynamic detection system is arranged on the second test vehicle. The geometric linear detection system, the road 3D detection system, and the drop hammer loading system are used for a road detection.

Abstract: The present invention provides a scalable synthesis of enantiomerically pure brivaracetam, and related derivatives.

Abstract: A file access right authentication method and system allows right authentication to be performed on an access request for accessing a file in a system to thereby improve system security. The method includes: receiving, by an electronic device, a file access request, where the file access request is used to request to access a first file on the electronic device; obtaining a first process identifier in the file access request, and determining first fixed identity information corresponding to the first process identifier; and matching the first fixed identity information with authorized fixed identity information corresponding to the first file), and when the matching succeeds, determining that authentication of the file access request is successful.

Abstract: The present disclosure provides for a semiconductor device with integrated sensing and processing functionalities. The semiconductor device includes a sensing module configured to generate a plurality of analog sensing signals; and a machine learning (ML) processor. The sensing module and the ML processor are fabricated on a single wafer. The ML processor includes crossbar arrays that processes the analog sensing signals to generate analog preprocessed sensing data; an analog-to-digital converter (ADC) to convert the analog preprocessed sensing data into digital preprocessed sensing data; and a machine learning processing unit to process the digital preprocessed sensing data utilizing one or more machine learning model.

Abstract: A power tool includes a housing defining a grip portion, a motor having a motor drive shaft, a drive assembly coupled to the motor drive shaft and driven by the motor, an output assembly coupled to the drive assembly and having an output member that receives torque from the drive assembly, causing the output member to rotate about an output axis, and a transducer assembly including a frame disposed between the grip portion and the output member. The transducer assembly is configured to measure the amount of torque applied through the output member. The power tool further includes a head in which the output member is arranged, a pin extending through the frame and the head to retain the head to the frame, and a retaining ring arranged around the frame and the pin for exerting a radially inward biasing force against the pin.

Abstract: Disclosed is an experimental device and method for solubility determination of methane in oil-based drilling fluid, comprising a pressure-resistant gas chamber and an equilibrium still both arranged in a constant-temperature oil bath heating oven, a gas booster pump, and a vacuum system used for vacuuming the pressure-resistant gas chamber and the equilibrium still, and a data acquisition device for collecting temperature and pressure signals; the gas booster pump is connected to drive air source inlet, a gas check valve is arranged on the pipe between the pressure-resistant gas chamber and the gas booster pump that is also connected with a high-pressure gas cylinder, the equilibrium still is divided into a dissolution equilibrium chamber at the top and a hydraulic oil chamber at the bottom by a high-pressure dynamic seal structure, the dissolution equilibrium chamber is connected to a liquid inlet funnel through the fourth globe valve.

Abstract: A power tool comprises a housing defining a grip portion, a motor having a motor drive shaft, a drive assembly including a crankshaft configured to receive torque from the motor drive shaft, an output assembly having an output member configured to receive torque from the crankshaft, a bearing rotatably supporting the crankshaft, a retainer configured to prevent translation of the bearing along the crankshaft past the retainer, and a transducer assembly disposed between the grip portion and the output member to measure the amount of torque applied through the output member.

Abstract: The present application provides a upadacitinib salt compound and a preparation method therefor. The salt involved in the method in the present application has an easy preparation operation, a cheap raw material easy to get, and a good purification effect on upadacitinib, and is beneficial to industrial production.

Abstract: The application relates to a lateral motion control method and system for a vehicle, an automatic driving controller, a steering system, a vehicle, and a storage medium, wherein the lateral motion control method for the vehicle comprises: generating and outputting a steering control command according to a desired track of the vehicle, such that the vehicle moves along an actual track according to the steering control command; determining a vehicle running state, wherein the vehicle running state is generated according to an error value between the desired track and the actual track; and determining whether to stop/limit outputting of the steering control command or not according to the vehicle running state. The lateral motion of the vehicle can be controlled according to the method.

Abstract: The present invention provides a scalable synthesis of enantiomerically pure brivaracetam, and related derivatives.

Abstract: The present technology relates to a file processing method. The file processing method can includes a first terminal device receiving an encrypted file from a second terminal device. The first terminal device stores the encrypted file. The first terminal device receives an access instruction for the encrypted file. The first terminal device obtains a current security state. When the current security state is higher than or equal to a first security state, the first terminal device decrypts the file by using a decryption key. It can be learned that according to the method, after the first terminal device receives the encrypted file, the first terminal device decrypts the file by using the decryption key only when a security state is high.

Abstract: Membranes and filtration modules for producing a concentrated feed stream and a diluted feed stream during operation in a water purification or wastewater treatment system. Filtration modules are provided that include a semipermeable membrane having a first side and a second side, the first side configured to receive a first feed solution stream from a first feed solution source and the second side configured to receive a second feed solution stream from a second feed solution source. The semipermeable membrane may be configured to operate at a hydrostatic pressure on the second side of the membrane from about 1% to about 40% of the hydrostatic pressure on the first side of the membrane, and may in some cases exhibit a salt rejection of from about 60 percent to about 90 percent during operation.

Abstract: An image object classification method and system are disclosed. The method is executed by a processor coupled to a memory. The method includes: providing an image file including at least one image object, performing a process of extracting multiple binary-classified characteristics on the image object to obtain a plurality of first results independent of each other in categories, combining the plurality of first results in a manner of dimensionality reduction based on concatenation, performing a process of characteristics abstraction on the combined first results to obtain a second result, and performing a process of characteristics integration on the plurality of first results and the second result in a manner of dot product of matrices to obtain a classification result.

Abstract: The present disclosure relates to a JAK inhibitor upadacitinib intermediate and a preparation method therefor, and to a preparation method for a JAK inhibitor upadacitinib. The upadacitinib intermediate of the present application is as shown in Formula (II) or Formula (III), wherein, R is a protective group of nitrogen atoms, and R1 is an open-chain or cyclic amine group. Compared with the prior art, the method for the synthesis of upadacitinib of the present application, significantly reduces cost, is environmentally-friendly. And the quality of the final product is well controlled.

Abstract: This application relates to a suspension control method and system, a vehicle, and a storage medium. The suspension control method includes: acquiring a pavement image in a traveling direction; identifying a variation type corresponding to a pavement smoothness variation according to the pavement image; generating a control signal according to the identified variation type, to adjust a suspension parameter; detecting, by using a sensor coupled to a suspension, pavement characteristic information corresponding to the variation type; and generating a correction signal based on the pavement characteristic information, to correct the control signal. The suspension control method can identify the pavement smoothness variation more accurately and set the suspension damping parameter according to an identification result.

Abstract: Membranes and filtration modules for producing a concentrated feed stream and a diluted feed stream during operation in a water purification or wastewater treatment system. Filtration modules are provided that include a semipermeable membrane having a first side and a second side, the first side configured to receive a first feed solution stream from a first feed solution source and the second side configured to receive a second feed solution stream from a second feed solution source. The semipermeable membrane may be configured to operate at a hydrostatic pressure on the second side of the membrane from about 1% to about 40% of the hydrostatic pressure on the first side of the membrane, and may in some cases exhibit a salt rejection of from about 60 percent to about 90 percent during operation.