Abstract: The present disclosure relates to a self-adaptive guided advanced driver assistance system (ADAS) considering a driving skill difference between drivers, including a driving skill classification module, configured to calculate a vehicle stability margin based on a vehicle state, and obtain a corresponding driving skill classification result with the vehicle stability margin and a driver state as inputs of a driving skill classification model; a skill learning range classification module, configured to obtain the vehicle stability margin and a distance between a vehicle and a lane line boundary, and use a skill learning range classification model to obtain a skill learning range classification result; and a self-adaptive guided driving right allocation module, configured to realize driving right allocation control based on the driving skill classification result and the skill learning range classification result, and generate an assisted steering torque acting on a vehicle steering system.

Abstract: A tracer diffusion device includes: a first container, for holding a first fluid containing a tracer; a second container, for holding a second fluid; a drilling pipe; wherein, a first end of the drilling pipe is connected to the first container; a second end of the drilling pipe is extended into a borehole; and the second end of the drilling pipe is equipped with a first sealing capsule and a second sealing capsule; a plurality of through holes are arranged on the drilling pipe between the first sealing capsule and the second sealing capsule; a unidirectional driving device, arranged on the drilling pipe, for injecting the first fluid from the first container into the borehole between the first sealing capsule and the second sealing capsule; and a bidirectional driving device, arranged between the second container and the first sealing capsule.

Abstract: A method and a system for simulating contact and interaction between a support member and a chamber surrounding rock mass are provided in the application.

Abstract: An automotive front seat overhead airbag includes a supporting air chamber and a protective air chamber mounted on a roof. The supporting air chamber is inflated from the roof towards a dashboard upon inflation. The protective air chamber is in communication with the supporting air chamber. After the supporting air chamber is inflated, the protective air chamber is inflated from the supporting air chamber towards the human body. A first protective space is reserved between the supporting air chamber and the protective air chamber on a side facing the human body. The first protective space corresponds to the head of the human body for protecting the head and neck of the human body. An automobile includes a roof and a dashboard, and further includes the automotive front seat overhead airbag described above. An upper end of the supporting air chamber is connected to a gas generator.

Abstract: A Pickering particle dry powder and a preparation method are used in food processing. The preparation method includes stirring peanut protein isolate and water as raw materials to obtain peanut protein isolate dispersion, subjecting the peanut protein isolate dispersion to ultrasonic treatment, subjecting the resultant to cross-linking reaction with transglutaminase to obtain a monolithic geld, shearing and homogenizing the monolithic gel to obtain a microgel particle dispersion, spray drying the microgel particle dispersion to obtain the Pickering particle dry powder. The Pickering particle dry powder prepared by the ultrasonic-assisted enzyme method is still in nanometer level after rehydration, which is beneficial to preparing Pickering emulsion with strong stability. The preparation method has the advantages of simple operation and low cost, which is beneficial to actual production in the food industry.

Abstract: A safety airbag having an air bag, the air bag configured with an inflated state and a stowed state, and including a main body portion and a first side flap and a second side flap connected to two sides of the main body portion. The first side flap and the second side flap extend from the main body portion towards an occupant when the air bag is in the inflated state such that the head of the occupant is accommodated in a recessed portion between the first side flap and the second side flap. The first side flap includes a first inner side surface and a first outer side surface. The second side flap includes a second inner side surface and a second outer side surface.

Abstract: A parallel computing method for man-machine coordinated steering control of a smart vehicle based on risk assessment is provided, comprising the following steps: building a lateral kinetic equation model of a vehicle; building a target function by targeting at minimizing an offset distance of a vehicle driving track from a lane center line and making a change in a front wheel steering angle and a longitudinal acceleration as small as possible in a driving process; building a parallel computing architecture of a prediction model and the target function, and employing a triggering parallel computing method; solving and computing a gradient with a manner of back propagation and using a gradient descent method to obtain an optimal control amount of the front wheel steering angle and an optimal control amount of the longitudinal acceleration; and computing a driving weight, obtaining a desired front wheel steering angle and completing real time control.

Abstract: The disclosure relates to a method for real time optimization and parallel computing of model prediction control based on a computing chart, comprising the following steps: building a prediction model of a system state amount and building a target function of a system; building a parallel computing architecture for model prediction control of a prediction model and the target function and employing a triggering parallel computing method by the parallel computing architecture to synchronously compute the prediction model and the target function; and solving and computing a gradient with a manner of back propagation and using a gradient descent method to optimize a control amount of the system and realize real time optimal control of the system. Compared with the prior art, the present disclosure greatly improves a computing efficiency, ensures real time property of a model prediction controller, and extends application fields of model prediction control.

Abstract: A preparation method for an yttrium aluminum garnet continuous fiber. The method prepares a spinnable precursor sol by utilizing an Al13 colloidal particles contained alumina sol, ?-AlOOH nano-dispersion, yttria sol, glacial acetic acid and polyvinylpyrrolidone, then prepares a gel continuous fiber by adopting a dry spinning technique, and carries out a heat treatment to obtain the yttrium aluminum garnet continuous fiber.

Abstract: An automotive front seat overhead airbag includes a supporting air chamber and a protective air chamber mounted on a roof. The supporting air chamber is inflated from the roof towards a dashboard upon inflation. The protective air chamber is in communication with the supporting air chamber. After the supporting air chamber is inflated, the protective air chamber is inflated from the supporting air chamber towards the human body. A first protective space is reserved between the supporting air chamber and the protective air chamber on a side facing the human body. The first protective space corresponds to the head of the human body for protecting the head and neck of the human body. An automobile includes a roof and a dashboard, and further includes the automotive front seat overhead airbag described above. An upper end of the supporting air chamber is connected to a gas generator.

Abstract: A safety airbag having an air bag, the air bag configured with an inflated state and a stowed state, and including a main body portion and a first side flap and a second side flap connected to two sides of the main body portion. The first side flap and the second side flap extend from the main body portion towards an occupant when the air bag is in the inflated state such that the head of the occupant is accommodated in a recessed portion between the first side flap and the second side flap. The first side flap includes a first inner side surface and a first outer side surface. The second side flap includes a second inner side surface and a second outer side surface.

Abstract: A parallel computing method for man-machine coordinated steering control of a smart vehicle based on risk assessment is provided, comprising the following steps: building a lateral kinetic equation model of a vehicle; building a target function by targeting at minimizing an offset distance of a vehicle driving track from a lane center line and making a change in a front wheel steering angle and a longitudinal acceleration as small as possible in a driving process; building a parallel computing architecture of a prediction model and the target function, and employing a triggering parallel computing method; solving and computing a gradient with a manner of back propagation and using a gradient descent method to obtain an optimal control amount of the front wheel steering angle and an optimal control amount of the longitudinal acceleration; and computing a driving weight, obtaining a desired front wheel steering angle and completing real time control.

Abstract: The disclosure relates to a method for real time optimization and parallel computing of model prediction control based on a computing chart, comprising the following steps: building a prediction model of a system state amount and building a target function of a system; building a parallel computing architecture for model prediction control of a prediction model and the target function and employing a triggering parallel computing method by the parallel computing architecture to synchronously compute the prediction model and the target function; and solving and computing a gradient with a manner of back propagation and using a gradient descent method to optimize a control amount of the system and realize real time optimal control of the system. Compared with the prior art, the present disclosure greatly improves a computing efficiency, ensures real time property of a model prediction controller, and extends application fields of model prediction control.

Abstract: Provided is a surveying stand capable of precisely adjusting the angle of a staff. The surveying stand comprises an annular first pedestal (1) and support legs (2) connected to the first pedestal (1). A staff fixture (3) is disposed in the first pedestal (1). A staff alignment device is connected to the first pedestal (1). The staff fixture (3) can rotate horizontally relative to the first pedestal (1). A rotation adjustment device capable of adjusting the rotation angle of the staff fixture (3) is arranged between the first pedestal (1) and the staff fixture (3). The surveying stand is easy to operate and is capable of precisely adjusting the angle of the staff.

Abstract: A receiver of a cooling unit includes a cylindrical body having a cylindrical wall that defines an interior chamber, a bottom wall formed with the cylindrical wall, and a top wall formed with the cylindrical wall. The receiver further includes an inlet provided in the cylindrical body, an outlet provided in the cylindrical body, a heater well disposed within the cylindrical body, and a heater positioned in the heater well to selectively heat a heat transfer fluid contained within the interior chamber of the cylindrical body. The heater well can be configured to extend from the top wall to adjacent the bottom wall along an axis that is coaxial with an axis of the cylindrical wall of the cylindrical body or extend horizontally adjacent the bottom wall of the cylindrical body.

Abstract: Disclosed is a three-dimensional ultrasound image display method comprising the following steps: S1: obtaining a series of original two-dimensional images having spatial position and angle information by means of automatic or manual scanning; S2: performing image reconstruction on the basis of the original two-dimensional images to obtain three-dimensional volumetric images; S3: obtaining, from the three-dimensional volumetric images, one or more section images intersecting the original two-dimensional images, and obtaining one or more reconstructed two-dimensional images by means of image processing; S4: displaying together the one or more original two-dimensional images and the one or more section images in a three-dimensional space; and S5: selecting and displaying feature points, feature lines, and feature surfaces in the three-dimensional space on the basis of the original two-dimensional volumetric images.

Abstract: A method for preparing battery grade and high purity grade lithium hydroxide and lithium carbonate from high-impurity lithium sources includes steps for preparation of a refined lithium salt solution, preparation of battery grade lithium hydroxide, preparation of high purity grade lithium hydroxide, preparation of high purity grade lithium carbonate and preparation of battery grade lithium carbonate. The system to carry out the preparation includes a refined lithium salt solution preparation subsystem, a battery grade lithium hydroxide preparation subsystem, a high purity grade lithium hydroxide preparation subsystem, a high purity grade lithium carbonate preparation subsystem and a battery grade lithium carbonate preparation subsystem arranged in turn according to production sequence. A combination of physical and chemical treatment methods are used to treat the high-impurity lithium sources having variations in lithium contents, impurity categories, and impurity contents.

Abstract: A method for preparing battery grade and high purity grade lithium hydroxide and lithium carbonate from high-impurity lithium sources includes steps for preparation of a refined lithium salt solution, preparation of battery grade lithium hydroxide, preparation of high purity grade lithium hydroxide, preparation of high purity grade lithium carbonate and preparation of battery grade lithium carbonate. The system to carry out the preparation includes a refined lithium salt solution preparation subsystem, a battery grade lithium hydroxide preparation subsystem, a high purity grade lithium hydroxide preparation subsystem, a high purity grade lithium carbonate preparation subsystem and a battery grade lithium carbonate preparation subsystem arranged in turn according to production sequence. A combination of physical and chemical treatment methods are used to treat the high-impurity lithium sources having variations in lithium contents, impurity categories, and impurity contents.

Abstract: A double-head double-sided high-efficiency friction stir welding device includes a base (1), a pair of columns (2) arranged on the base (1), an upper beam (3), at least one worktable connected with a horizontal surface of the base (1), vision sensors (7) mounted on the upper head (5) and the lower head (6) and used for identifying the weld, and a CNC controller (8) used for controlling operations of the gantry, the upper head (5), the lower head (6), the worktable and the vision sensors (7).

Abstract: A traverse-type measurement method for a dual-system bilateral-survey composite level (A, B) is an intelligent traverse-type measurement method for integrated three-level error control loop inspection with the dual-system bilateral survey compound level (A, B). Specifically, survey station single-instrument inspection, survey station dual-instrument cross-inspection, and multi-survey station dual-instrument cumulative cross-inspection are adopted, and the number of observations and distance between survey stations are adjusted, such that measurement error is dynamically controlled in real time, ensuring that height difference measurement of survey stations and of measurement sections meets a preset precision requirement regardless of location or time, avoiding the invalid measurements that frequently occur with traditional levels, and improving working efficiency and economic benefit of the composite level.