Abstract: The present disclosure relates to the technical field of protective coatings, and provides a graphene oxide (GO)-modified styrene-acrylic Pickering emulsion and a composite emulsion, and preparation methods and use. In the present disclosure, GO is added during polymerization of a styrene-acrylic monomer, and the GO is attached to an interface of a styrene-acrylic core while forming the styrene-acrylic core; and the GO is “stitched” at the interface of the styrene-acrylic core by a silane coupling agent, thus giving the GO a better dispersion effect. After adding a shell phase emulsion, a part of the styrene-acrylic core that is not completely wrapped by a GO sheet may be grafted with a shell phase, and cross-linking between a core phase and the shell phase can further enhance a steric stability of the GO; and the GO can fully connect the styrene-acrylic core with a siloxane shell, improving the molecular configuration of a siloxane component.

Abstract: The vehicle lane changing trajectory planning method includes: determining a starting point and an end point of a to-be-planned path on a grid lane changing map, which is a gridded local map reflecting a lane changing condition and takes a road boundary as a map boundary; performing weight allocation on all grids in the grid lane changing map by using a potential function; searching for optimal solutions corresponding to different weight requirements between the starting point and the end point; smoothing the optimal solutions corresponding to the different weight requirements to obtain lane changing trajectories corresponding to the different weight requirements; and selecting an optimal lane changing trajectory from the lane changing trajectories corresponding to the different weight requirements.

Abstract: Disclosed is a method for producing special oil OPO by way of microbial fermentation. The method comprises the following steps: inoculating microorganisms to an activating culture medium for shake cultivation treatment to obtain an activated culture; adding an organic matter into a minimal medium to obtain an optimized culture medium; inoculating the culture into the optimized culture medium for shake cultivation treatment to obtain a culture solution; carrying out centrifugal treatment on the culture solution, taking a precipitate, washing the precipitate and freeze-drying the precipitate, adding a hydrochloric acid solution to obtain a mixture; and adding an organic solvent into the mixture for extraction, and removing the solvent to obtain the OPO, wherein the microorganisms are Rhodococcus opacus PD630.

Abstract: An airborne super-continuum 50-band hyperspectral light detection and ranging system comprises an integrated control system, a storage unit, a super-continuum laser system, an optical transmitting system, a reflecting mirror, a scanning system, an optical receiving system, a super-continuum hyperspectral laser detection system, a plane array CCD camera. The operation process includes super-continuum laser system emitting continuous hyperspectral pulsed lasers, performing lasers beam expansion and collimation, emitting it to ground objects, reflecting it, receiving it by the scanning system, transmitting to the optical receiving system, and focusing it into hyperspectral laser detection system for outputting laser hyperspectrum and 3D spatial data, storing laser data in the storage unit with high-resolution multi-spectral data.

Abstract: A multi-mode control method for a grid-connected inverter includes: continuously calculating an effective value VHarRms of a voltage harmonic of a filtering capacitor; perturbing a control parameter to excite the voltage harmonic of the filtering capacitor; estimating a grid condition based on the perturbed control parameter and the effective value VHarRms of the voltage harmonic of the filtering capacitor; and switching a control mode of the grid-connected inverter based on the estimated grid condition. The multi-mode control method provides a grid condition detection method, which excites the voltage harmonic by perturbing the control parameter and determines the grid condition by the relationship between the control parameter and the effective value of the voltage harmonic.

Abstract: In an embodiment a shape-transformable switch apparatus includes a housing comprising an accommodating region with a high voltage electrode, a Electrorheological (ER) fluid located in the accommodating region, the ER fluid configured to change viscosity and rigidity, a switch cover shielding an upper portion of the housing, the switch cover configured to change a shape based on changes of the viscosity and of the rigidity of the ER fluid; and a controller configured to allow a voltage to be applied to the high voltage electrode such that an electrostatic attraction is generated so that the ER fluid flows and is pressed against the switch cover thereby changing a shape of the switch cover.

Abstract: Disclosed is a rehabilitation robot training system for monitoring and suppressing the compensatory movement of a hemiplegic upper limb. The system includes an upper computer control center, an interaction display screen, a force feedback glove, a position tracker, upper limb rehabilitation robot tail end connectors, an upper limb rehabilitation robot, a base and a pressure cushion. One upper limb rehabilitation robot tail end connector is mounted on a tail end of each of two robotic arms of the upper limb rehabilitation robot, and the upper limb rehabilitation robot tail end connectors are respectively worn on an upper arm and a forearm of a patient to drive an arm to move; the upper computer control center stores and processes data, collected by the position tracker, the force feedback glove and the pressure cushion in real time, of the patient, and monitors and analyses whether the patient does a compensatory gesture.

Abstract: The metal ceramic powder with a particle size of 15-45 ?m and suitable for thermal spraying is prepared through a combination of mechanical ball milling, spray granulation, and vacuum sintering. The metal ceramic powder is sprayed on a surface of a steel substrate adopting the high velocity oxygen fuel (HVOF) technology with oxygen-propane as fuel and taking oxygen as a combustion improver, propane as fuel, nitrogen as powder feeding carrier gas, and air as a cooling medium to prepare and form the NiCrBSi—ZrB2 composite coating. The present disclosure solves the problem that ZrB2 ceramic is difficult to compact during sintering and improves powder bonding strength and fluidity. The preparation method is simple, has advantages of high coating deposition efficiency and convenient equipment operation, and is cost-effective. The preparation method can improve thermal corrosion resistance and high-temperature wear resistance of a surface of boiler, and prolonging lifetime of the boiler.

Abstract: The present disclosure provides a hydraulic phosphogypsum (PG)-based cementitious material, and a preparation method and use thereof, belonging to the technical field of cementitious materials. The present disclosure provides a hydraulic PG-based cementitious material, including the following raw materials: modified PG particles and an auxiliary active powder, where the modified PG particles have a dosage of 50 wt % to 95 wt %; the modified PG particles are obtained by conducting modification on original PG particles through a calcareous material, and the calcareous material has a mass 3% to 5% of that of the original PG particles; and the original PG particles have typical dimensions of: a length of 50 ?m to 200 ?m and an aspect ratio of 1.5 to 5; and at least 80% of materials in the auxiliary active powder have a particle size of less than or equal to 60 ?m. In the present disclosure, the hydraulic PG-based cementitious material adopts a particle accumulation method of gap grading.

Abstract: A wireless charging heating system, a wireless charging system, a wireless charging heating method and a wireless charging method are provided.

Abstract: The present application provides a thin-walled shell model updating method and system. The method includes converting an influence of fine feature structures in a space shell structure on stiffness and mass equivalently onto a skin and a stiffener, so as to simulate the influence of the fine feature structures on a bearing capacity of a whole structure.

Abstract: A facial expression-based detection method for deepfake by generative artificial intelligence (AI) constructs an AIR-Face facial dataset for generative AI-created face detection training, and uses an untrained information feature space for real and fake classification. Nearest linear detection is performed in this space to significantly improve the generalization ability of detecting fake images, especially those created by new methods such as diffusion models or autoregressive models. The detection method improves the performance of extracting features of generative AI-created faces through phased trainings, and detects generative AI-created faces through the feature space. Compared with other methods, the detection method scientifically and effectively improves the accuracy of generative AI-created face recognition, and fully mines the potential semantic information of generative AI-created faces through phased trainings.

Abstract: An electrostatic nozzle and a minimal quantity lubricating and grinding system for a controllable jet. An electrostatic nozzle includes a nozzle core, an upper nozzle body being connected above the nozzle core; an empty space being formed between the upper nozzle body and the nozzle core for storing compressed air and decompression; a lower nozzle body being connected below the nozzle core; a gas-liquid mixing chamber, an acceleration chamber, and a nozzle outlet being sequentially disposed inside the nozzle core from top to bottom; and micro-convex bodies being evenly arranged on an inner wall of the acceleration chamber.

Abstract: The present disclosure relates to an apparatus for controlling the motion of a vehicle to improve riding comfort, and a method thereof. According to an embodiment of the present disclosure, a processor may determine a boarding location for a user and may determine a vehicle control signal in consideration of riding comfort according to acceleration or jerk based on the boarding location. A controller may control the vehicle depending on the vehicle control signal.

Abstract: The present invention provides a self-healing ceramic material with reduced porosity and a method for preparing the same. The self-healing ceramic material comprises the following components by volume: 60-85 parts by volume of Al2O3, 10-20 parts by volume of TiN, 10-20 parts by volume of TiSi2, 0.1-1 parts by volume of MgO, and 0.1-1 parts by volume of Y2O3. Wherein, Al2O3 serves as a matrix, TiN and TiSi2 act as repair agents, and MgO and Y2O3 function as sintering aids. The repair function is realized by adding TiN and TiSi2, which have repair capabilities, to the ceramic matrix, enabling the ceramic material to heal cracks. TiN plays the main role of repair function, and TiSi2 assists in the repair and helps reduce the formation of surface pores.

Abstract: The present application provides a kinematics modeling method, apparatus and device for a multi-degree-of-freedom mechanism and a storage medium. The method includes: constructing a point coordinate system, and constructing the transformation matrix; constructing transformation matrices of two rotating axes and the transformation matrix; constructing the forward kinematics model based on the transformation matrices of the point coordinate system, the two rotating axes and the workpiece coordinate system; solving the motor value of the rotating axis through the rotation matrix of the end-effector, using the translation matrix of the end-effector as a non-homogeneous linear equation set, solving the motor value of linear axis.

Abstract: An automatic pressure regulating valve for multiple levels of driving automation of a commercial vehicle includes an upper valve body, a lower valve body, a piston, a main valve core assembly, a switching valve, a quick-acting intake valve, and a quick-acting exhaust valve. The switching valve, the quick-acting intake valve and the quick-acting exhaust valve are all mounted at an upper end of the upper valve body. The piston is located in a chamber formed by the upper valve body and the lower valve body to divide the chamber into an upper control chamber and a lower chamber. The main valve core assembly is mounted in the lower valve body. The automatic pressure regulating valve is applicable to a commercial vehicle allowing for multiple levels of driving automation.

Abstract: The building node includes an upper unit column, a lower unit column, an upper unit bottom beam, a lower unit ceiling beam, an upper connecting box, a lower connecting box, a connecting plate, an upper anchorage device, a lower anchorage device, an upper sleeve, a lower sleeve, a pull rod shear lock, position limiting nuts, and an injection pipe. The lower anchorage device is fixedly connected to the top plate of the lower connecting box; the lower position limiting nut is fixedly connected to the lower anchorage device; one end of the lower sleeve is fixedly connected to the lower anchorage device, and another end of the lower sleeve is fixedly connected to the top plate of the lower connecting box; the bottom of the upper sleeve is fixedly connected to the bottom plate of the upper connecting box.

Abstract: Embodiments of the present disclosure provide a method for traffic flow control considering a bus stop in a connected environment, comprising: determining an influence region of the bus stop; dividing the influence region of the bus stop into influence subregions; collecting vehicle information of each of the influence subregions at time t; comparing lane changing pressures of different influence subregions of the bus stop; determining a predicted count of lane changing vehicles of each of the influence subregions based on lane changing pressure differences; and selecting optimal lane changing vehicles to complete lane changing. A vehicle density distribution in the influence region of the bus stop can be dynamically regulated through vehicle information interaction in the connected environment, thereby making the spatial distribution of the traffic flow more balanced, saving vehicle traveling time, and improving the operation efficiency of the traffic flow.

Abstract: A photoelectric detector chip and a preparation method and application thereof are provided. The photoelectric detector chip includes a bottom electrode, a first GaN layer, an i-InyGa1-yN functional layer, a second GaN layer, an i-InxGa1-xN functional layer, a third GaN layer, and a top electrode that are stacked sequentially, where 0?x?1, and y>x; the first GaN layer, the second GaN layer, and the third GaN layer are an n-GaN layer, a p-GaN layer, and an n-GaN layer respectively. The photoelectric detector chip is a vertical-structure dual-band chip. Compared with a transverse structure, the vertical structure can reduce carrier transition time, increase the response speed of the detector, and effectively improve the ?3 dB bandwidth of the detector. The dual bands allow the photoelectric detector chip to load voltages in different directions, thus achieving photoelectric detection in different bands.