Abstract: The invention pertains to the field of friction dampers, specifically focusing on a variable parameter friction damper. It comprises a rotation energy dissipation unit, comprising a first rotation arm, a second rotation arm, a friction plate, and a pressure regulating component. The first rotation arm has a first rotation part and a second rotation part, while the second rotation arm has a third rotation part and a fourth rotation part. The first and third rotation parts rotate around a first axis, with the friction plate positioned between them. The pressure regulating component adjusts the distance between the first and third rotation parts. The second and fourth rotation parts are hinged on the building matrix. This damper can adaptively adjust bearing capacity and energy dissipation based on external excitation levels and disaster types, showcasing strong adaptability to varying deformation levels.

Abstract: An image processing method, apparatus, and system are provided. The image processing method includes: obtaining an initial image; converting the initial image from one type to another based on an image feature of the initial image, to obtain a target image; and presenting the target image, or analyzing and processing the target image. The initial image can be processed based on the image feature of the initial image, to obtain another type of image.

Abstract: The invention relates to the technical field of composites, in particular to a high-toughness and high-strength wood-plastic composite and a preparation method thereof. The wood-plastic composite is prepared from the following preparation raw materials in parts by mass: 30-50 parts of wood flour, 11-20 parts of high molecular weight polyethylene, 30-52 parts of polypropylene and 2-10 parts of an interface modifier. Polypropylene is used as a main component of a plastic matrix; high molecular weight polyethylene is used as a secondary component of the plastic matrix and has a toughening effect; wood flour is used as a filler to improve the strength of the wood-plastic composite; the interface modifier can improve the interface bonding between the wood flour and the plastic matrix, and all components have a synergistic effect, so that the obtained wood-plastic composite has high toughness and high strength.

Abstract: The present application relates to the field of data consistency testing, and provides a method and device for testing vehicle data consistency in V2X. The method includes: collecting vehicle V2X test data transmitted based on a V2X-PC5 communication protocol; parsing the V2X test data, and determining whether a format and a data value of parsed data conform to a preset definition, and whether the parsed data is consistent with operating data in testing, to obtain a data structure consistency result; calculating an average error value between dynamic data in the parsed data and data collected by a high-precision inertial navigation device when time stamps are aligned and data sampling frequencies are the same; and according to the data structure consistency result and the average error value, determining whether vehicle data conforms to a preset consistency standard.

Abstract: A testing method for a blind spot detection system for an automobile includes: applying an electromagnetic interference signal to the tested automobile through an electromagnetic interference signal application device, meanwhile, simulating a static obstacle or a moving obstacle within a detection range through a testing device, and if the blind spot detection system for the tested automobile is activated, determining that the testing is passed. Repeatable and reproducible testing for the electromagnetic safety of the blind spot detection system may be realized.

Abstract: Disclosed are an OTA test method for a vehicle antenna system, a device and a storage medium. According to the method, the radio frequency performance of a physical layer of a whole vehicle antenna system can be tested, and the problem in the prior art that the test result of parts cannot accurately reflect the performance of the whole vehicle antenna system can be solved.

Abstract: A media processing method includes determining, by the media server based on a first network model, a first object existing in a first video to implement automatic detection of an object. The first network model is based on a sample image that includes the first object determining, by the media server from a media set, first media that matches the first object, where the first object is associated with content of the first media, and covering, by the media server, a target region of the first video with the first media to generate an integrated video file.

Abstract: The invention relates to the technical field of composites, in particular to a high-toughness and high-strength wood-plastic composite and a preparation method thereof. The wood-plastic composite is prepared from the following preparation raw materials in parts by mass: 30-50 parts of wood flour, 11-20 parts of high molecular weight polyethylene, 30-52 parts of polypropylene and 2-10 parts of an interface modifier. Polypropylene is used as a main component of a plastic matrix; high molecular weight polyethylene is used as a secondary component of the plastic matrix and has a toughening effect; wood flour is used as a filler to improve the strength of the wood-plastic composite; the interface modifier can improve the interface bonding between the wood flour and the plastic matrix, and all components have a synergistic effect, so that the obtained wood-plastic composite has high toughness and high strength.

Abstract: An image processing method, apparatus, and system are provided. The image processing method includes: obtaining an initial image; converting the initial image from one type to another based on an image feature of the initial image, to obtain a target image; and presenting the target image, or analyzing and processing the target image. The initial image can be processed based on the image feature of the initial image, to obtain another type of image.

Abstract: A media processing method includes determining, by the media server based on a first network model, a first object existing in a first video to implement automatic detection of an object. The first network model is based on a sample image that includes the first object determining, by the media server from a media set, first media that matches the first object, where the first object is associated with content of the first media, and covering, by the media server, a target region of the first video with the first media to generate an integrated video file.

Abstract: The disclosure provides a method for preventing marine biofouling by using the principle of harmonic vibration. The method includes coating a surface of a device to be disposed in water with an elastic material layer. The elastic material may vibrate harmonically under the influence of the water traveling wave, thereby forming a cosine wave form. Taking “a” as the wavelength of the harmonic vibration, “b” as the amplitude of the harmonic vibration and “L” as the body length of a mussel larva, an algae larva or a barnacle larva, where L/2 is larger than “a” or “b”, the larva will be easily stripped off under the effect of harmonic vibration. The frequency of the cosine wave ranges from 0.02 Hz to 0.1 Hz so that the larva has insufficient time to stay, thereby preventing the larva from attaching.

Abstract: Systems, devices, uses and methods relating to magnetorhological materials including carbon nanotubes, such as single-walled and multi-walled carbon nanotubes, are disclosed. Uses of magnetorheological materials such as in motion damping/vibration isolation are also disclosed.

Abstract: Systems, devices, uses and methods relating to magnetorhological materials including carbon nanotubes, such as single-walled and multi-walled carbon nanotubes, are disclosed. Uses of magnetorheological materials such as in motion damping/vibration isolation are also disclosed.

Abstract: The present invention provides (+)-morphinanium N-oxide compounds or pharmaceutically acceptable salts thereof. The invention also provides processes for producing (+)-morphinanium N-oxides or pharmaceutically acceptable salts thereof from the corresponding tertiary N-substituted (+)-morphinan compound or pharmaceutically acceptable salt thereof.

Abstract: The present invention provides processes for the preparation of 10-keto and/or 10-hydroxy morphinans. In particular, the invention provides to processes for preparing a 10-keto morphinan by chromium-catalyzed benzylic oxidation of a morphinan with a periodic acid.

Abstract: The present invention provides processes for the preparation of 10-keto and/or 10-hydroxy morphinans. In particular, the invention provides to processes for preparing a 10-keto morphinan by chromium-catalyzed benzylic oxidation of a morphinan with a periodic acid.

Abstract: The present invention provides (+)-morphinanium N-oxide compounds or pharmaceutically acceptable salts thereof. The invention also provides processes for producing (+)-morphinanium N-oxides or pharmaceutically acceptable salts thereof from the corresponding tertiary N-substituted (+)-morphinan compound or pharmaceutically acceptable salt thereof.