Abstract: Disclosed is the use of dihydroporphin derived from chlorophyll as a plant growth regulator. Compared with the prior art, a class of new type plant growth regulators are provided; since the direct decomposition product of chlorophyll is used as a product, the preparation and processing thereof are easier, the structure is relatively simple, and tedious reactions and preparations such as further chemical coordination/chelation/purification are eliminated, so that the product is more environmentally friendly and safer; the product has a better solubility than the corresponding metal chelate and has a more convenient method of use, making it more convenient to be used in the fields; the stability of the product has been improved, with stable quality assurance and a longer shelf life; the product has a natural source and uses a low amount of same due to a low effective dosage, thereby improving the utilization rate of silkworm excrement resources.

Abstract: The invention discloses a dTOF ranging method and a dTOF ranging system, which are applied to the field of optical measurement technology. The method includes setting a first mode and a second mode; wherein the first mode activates the corresponding SPADs according to the first area position information, and outputs the data of each pixel through the TDC array according to the number of components in the first pixel; the second mode activates the corresponding SPADs according to the second area position information, and outputs the data of each pixel through the TDC array according to the number of components in the second pixel. The position information of each area includes the block size of the corresponding area of the SPAD array and the position of the SPAD. The method also includes switching between the first mode and the second mode according to user-input command.

Abstract: A rotor blade system. The rotor blade system includes a rotor and a plurality of blades coupled to the rotor. The plurality of blades are arranged in an airfoil distribution pattern. The airfoil distribution pattern includes one or more baseline blades and one or more intentionally mistuned blades including an intentional mistuning feature.

Abstract: The present disclosure provides a multi-task deep Hash learning-based retrieval method for massive logistics product images. According to the idea of multi-tasking, Hash codes of a plurality of lengths can be learned simultaneously as high-level image representation. Compared with single-tasking in the prior art, the method overcomes shortcomings such as waste of hardware resources and high time cost caused by model retraining under single-tasking. Compared with the traditional idea of learning a single Hash code as an image representation and using it for retrieval, information association among Hash codes of a plurality of lengths is mined, and the mutual information loss is designed to improve the representational capacity of the Hash codes, which addresses the poor representational capacity of a single Hash code, and thus improves the retrieval performance of Hash codes.

Abstract: The present invention is directed to lidar systems and methods thereof. In a specific embodiment, the present invention provides a lidar system that includes a SPAD sensor includes n SPAD pixel rows. Based on the location of a target object on the SPAD sensor, m rows of n SPAD pixels row are selected based at least on the histograms generated using the n SPAD pixel rows. There are other embodiments as well.

Abstract: The application relates to an oscillation active damping control method and system for grid-tied type-4 wind turbine generator. The method comprises: based on an interconnection model of multiple subsystems, constructing a stored energy function and a dissipated energy function of a current inner loop control subsystem, and interaction energy functions between the current inner loop control subsystem and other subsystems are constructed, then establishing an energy feedback model of Type-4 wind turbine generator; when the oscillation occurs, obtaining instantaneous angular frequency of the PLL, and then based on the energy feedback model, adjusting the current reference value of the q-axis current inner loop generated by the reactive power outer loop control subsystem, to make the stored energy function decrease with time, so as to suppress the oscillation.

Abstract: A traction saddle disposed on a tractor for connection with a traction pin of a trailer, is provided. The traction saddle includes a base, a gear set, and a damper. A gear carrier of the gear set fixes planetary gears of the gear set, the planetary gears are meshed with an inner ring gear of the gear set, and the inner ring gear is fixed to the base. The gear carrier is used for fixing the traction pin to rotate with the traction pin. The planetary gears are meshed with a sun gear of the gear set to drive the sun gear to rotate, and the damper is connected to the sun gear to apply resistance. In addition, a traction pin, a tractor, a trailer, and a truck are also provided.

Abstract: A rotor blade system. The rotor blade system includes a rotor and a plurality of blades coupled to the rotor. The plurality of blades are arranged in an airfoil distribution pattern. The airfoil distribution pattern includes one or more baseline blades and one or more intentionally mistuned blades including an intentional mistuning feature.

Abstract: A traction saddle disposed on a tractor for connection with a traction pin of a trailer, is provided. The traction saddle includes a base, a gear set, and a damper. A gear carrier of the gear set fixes planetary gears of the gear set, the planetary gears are meshed with an inner ring gear of the gear set, and the inner ring gear is fixed to the base. The gear carrier is used for fixing the traction pin to rotate with the traction pin. The planetary gears are meshed with a sun gear of the gear set to drive the sun gear to rotate, and the damper is connected to the sun gear to apply resistance. In addition, a traction pin, a tractor, a trailer, and a truck are also provided.

Abstract: A rotor blade system. The rotor blade system includes a rotor and a plurality of blades coupled to the rotor. The plurality of blades are arranged in an airfoil distribution pattern. The airfoil distribution pattern includes one or more baseline blades and one or more intentionally mistuned blades including an intentional mistuning feature.

Abstract: A traction saddle disposed on a tractor for connection with a traction pin of a trailer, is provided. The traction saddle includes a base, a gear set, and a damper. A gear carrier of the gear set fixes axial centers of the planetary gears of the gear set, the planetary gears are meshed with an inner ring gear of the gear set, and the inner ring gear is fixed to the base. The gear carrier is used for fixing the traction pin to rotate with the traction pin. The planetary gears are meshed with one end of a sun gear of the gear set to drive the sun gear to rotate, and the damper is connected to the other end of the sun gear to apply resistance to rotation of the sun gear. In addition, a traction pin, a tractor, a trailer, and a truck are also provided.

Abstract: The present invention relates to an addressing determination method. By obtaining the calibration position of the light reflected back from the target object detected by the detector at a specified distance, the first sensing distance of the target object within the first time interval, and the first sensing position of the detector, the invention combines an optical model to obtain the first predicted position of the detector at the specified distance based on the first sensing distance and the first sensing position. The invention further determines whether the first predicted position is the same as the calibration position. If the two positions are different, it indicates errors in the process of selecting the region of interest or obtaining the first sensing position within the region of interest.

Abstract: A traction saddle disposed on a tractor for connection with a traction pin of a trailer, is provided. The traction saddle includes a base, a gear set, and a damper. A gear carrier of the gear set fixes axial centers of the planetary gears of the gear set, the planetary gears are meshed with an inner ring gear of the gear set, and the inner ring gear is fixed to the base. The gear carrier is used for fixing the traction pin to rotate with the traction pin. The planetary gears are meshed with one end of a sun gear of the gear set to drive the sun gear to rotate, and the damper is connected to the other end of the sun gear to apply resistance to rotation of the sun gear. In addition, a traction pin, a tractor, a trailer, and a truck are also provided.

Abstract: The present invention is directed to LiDAR systems and methods. In specific embodiments, the received signal is transformed into a histogram, facilitating the identification and filtering of one or more peaks to enhance accuracy. Various other embodiments are also provided, offering diverse solutions for optimizing LiDAR performance in different applications.

Abstract: A rotor blade system. The rotor blade system includes a rotor and a plurality of blades coupled to the rotor. The plurality of blades are arranged in an airfoil distribution pattern. The airfoil distribution pattern includes one or more baseline blades and one or more intentionally mistuned blades including an intentional mistuning feature.

Abstract: The present application discloses a braking method, a vehicle and a medium, wherein the vehicle comprises a primary braking system, a parking brake, an auxiliary high-pressure gas tank, and a retarder, and the braking method comprises: determining whether a current air pressure value of the auxiliary high-pressure gas tank reaches a preset air pressure value; controlling, in response to the current air pressure value not reaching the preset air pressure value, the auxiliary high-pressure gas tank to carry out air pressure loading; and controlling, in response to failure of the primary braking system and the current air pressure value reaching the preset air pressure value, a first braking torque of the parking brake and a second braking torque of the retarder according to a deceleration signal of the vehicle so as to control the vehicle to brake.

Abstract: The present disclosure provides a multi-task deep Hash learning-based retrieval method for massive logistics product images. According to the idea of multi-tasking, Hash codes of a plurality of lengths can be learned simultaneously as high-level image representation. Compared with single-tasking in the prior art, the method overcomes shortcomings such as waste of hardware resources and high time cost caused by model retraining under single-tasking. Compared with the traditional idea of learning a single Hash code as an image representation and using it for retrieval, information association among Hash codes of a plurality of lengths is mined, and the mutual information loss is designed to improve the representational capacity of the Hash codes, which addresses the poor representational capacity of a single Hash code, and thus improves the retrieval performance of Hash codes.

Abstract: The application relates to an oscillation active damping control method and system for grid-tied type-4 wind turbine generator. The method comprises: based on an interconnection model of multiple subsystems, constructing a stored energy function and a dissipated energy function of a current inner loop control subsystem, and interaction energy functions between the current inner loop control subsystem and other subsystems are constructed, then establishing an energy feedback model of Type-4 wind turbine generator; when the oscillation occurs, obtaining instantaneous angular frequency of the PLL, and then based on the energy feedback model, adjusting the current reference value of the q-axis current inner loop generated by the reactive power outer loop control subsystem, to make the stored energy function decrease with time, so as to suppress the oscillation.

Abstract: Disclosed is the use of chlorophyll dihydroporphin as a plant growth regulator. Compared with the prior art, a class of new type plant growth regulators are provided; since the direct decomposition product of chlorophyll is used as a product, the preparation and processing thereof are easier, the structure is relatively simple, and tedious reactions and preparations such as further chemical coordination/chelation/purification are eliminated, so that the product is more environmentally friendly and safer; the product has a better solubility than the corresponding metal chelate and has a more convenient method of use, making it more convenient to be used in the fields; the stability of the product has been improved, with stable quality assurance and a longer shelf life; the product has a natural source and uses a low amount of same due to a low effective dosage, thereby improving the utilization rate of silkworm excrement resources.

Abstract: The present invention is directed to lidar systems and methods thereof In a specific embodiment, the present invention provides a lidar system that includes a SPAD sensor includes n SPAD pixel rows. Based on the location of a target object on the SPAD sensor, m rows of n SPAD pixels row are selected based at least on the histograms generated using the n SPAD pixel rows. There are other embodiments as well.