Abstract: Disclosed is a GNSS receiver, including a state monitoring sensor and a processor. The state monitoring sensor is configured to monitor a state of the GNSS receiver, and generate a first triggering signal according to the state of the GNSS receiver. The processor is configured to switch from a resting operating state to a wake-up operating state according to the first triggering signal, and transmit position information about the GNSS receiver to a remote server at a preset frequency. Further disclosed is a GNSS device.

Abstract: A preparation method of an electroplated part includes the steps of plating a porous metal coating layer, placing the porous metal coating layer in a graphite colloid, and depositing graphite colloidal particles into the porous metal coating layer. The porous metal coating layer is plated at or proximate an outer side of a substrate of the electroplated part. The graphite colloidal particles are deposited into pores of the porous metal coating layer from the graphite colloid to form a graphite alloy coating layer.

Abstract: A method for manufacturing an electrically conductive terminal includes steps of plating a nickel plating layer on a surface of the conductive metal base layer, plating a silver plating layer on a surface of the nickel plating layer, and plating a tin plating layer on a surface of the silver plating layer.

Abstract: A conductive terminal includes a conductive base substrate and a plating layer structure plated on the conductive base substrate. The plating layer structure includes a nickel plating layer located outside the conductive base substrate, a silver plating layer located outside the nickel plating layer, and a platinum-based polymetallic plating layer located outside the silver plating layer.

Abstract: A method for converting state space representation (SSR) information to observation space representation (OSR) information includes: obtaining the SSR information, obtaining the OSR information, obtaining information of a virtual observation distance, and obtaining delay information of a troposphere and delay information of an ionosphere. A device for converting SSR information to OSR information includes: a satellite antenna, a global navigation satellite system (GNSS) board, a radio antenna, a mobile network module and antenna, a Bluetooth module and antenna, a Wi-Fi module and antenna, a status indicator light, a plurality of output interfaces, and a power supply unit. A conversion algorithm is realized for converting SSR information to OSR information, and the converted OSR information follows the international standard protocols and can be received by most GNSS receivers. A conversion device is developed based on the aforementioned method.

Abstract: The present application provides an optical filter, and a test assembly and method for a smoke detector. The optical filter comprises: a support; and a screen supported by the support, wherein the screen is composed of wires and mesh holes are defined between the wires, and the screen has a first side and a second side opposite to each other; wherein, the smoke detector comprises a light transmitter and a light receiver arranged in vicinity and an light reflector arranged opposite to the light transmitter and the light receiver, such that light emitted by the light transmitter is reflected to the light receiver via the light reflector; and wherein, during testing, the optical filter is arranged in both the light path from the light transmitter to the light reflector and the light path from the light reflector to the light receiver.

Abstract: A single-shot differential phase contrast quantitative phase imaging method based on color multiplexing illumination. A color multiplexing illumination solution is used to realize single-shot differential phase contrast quantitative phase imaging. In the single-shot color multiplexing illumination solution, three illumination wavelengths of red, green, and blue are used to simultaneously illuminate a sample, and the information of the sample in multiple directions is converted into intensity information on different channels of a color image. By performing channel separation on this color image, the information about the sample at different spatial frequencies can be obtained.

Abstract: An air nozzle includes a main body having a compressed air passageway to allow a compressed air to flow therethrough and a compensation air passageway in communication with the compressed air passageway. An external air is sucked into the compressed air passageway through the compensation air passageway and ejected together with the compressed air when the compressed air flows through the compressed air passageway.

Abstract: A resource allocation method for coexistence of multiple line topological industrial wireless networks is provided. It pertains to the coexistence problem of multiple TDMA-based line topological industrial wireless networks, including three parts: lower bound analysis of scheduling delay, allocation algorithm of inter-network resources and allocation algorithm of intra-network resources. The method uses overall scheduling delay and resource utilization ratio as measurement indexes when analyzing the lower bound of delay and designing resource allocation algorithms, and selects a best node combination in each time slot to occupy as many channel resources as possible to improve the resource utilization ratio and reduce the overall scheduling delay.

Abstract: A single-shot differential phase contrast quantitative phase imaging method based on color multiplexing illumination. A color multiplexing illumination solution is used to realize single-shot differential phase contrast quantitative phase imaging. In the single-shot color multiplexing illumination solution, three illumination wavelengths of red, green, and blue are used to simultaneously illuminate a sample, and the information of the sample in multiple directions is converted into intensity information on different channels of a color image. By performing channel separation on this color image, the information about the sample at different spatial frequencies can be obtained.

Abstract: A method for converting state space representation (SSR) information to observation space representation (OSR) information includes: obtaining the SSR information, obtaining the OSR information, obtaining information of a virtual observation distance, and obtaining delay information of a troposphere and delay information of an ionosphere. A device for converting SSR information to OSR information includes: a satellite antenna, a global navigation satellite system (GNSS) board, a radio antenna, a mobile network module and antenna, a Bluetooth module and antenna, a Wi-Fi module and antenna, a status indicator light, a plurality of output interfaces, and a power supply unit. A conversion algorithm is realized for converting SSR information to OSR information, and the converted OSR information follows the international standard protocols and can be received by most GNSS receivers. A conversion device is developed based on the aforementioned method.

Abstract: A reflow melting system for reflow melting a metal coating on an electrical contact area of a terminal includes a laser head for emitting a laser light onto the metal coating on the terminal to heat and melt the metal coating. A remote control terminal is provided in communication with the laser head for adjusting at least one working parameter of the laser head for optimizing the melting effect of the metal coating.

Abstract: An air nozzle includes a main body having a compressed air passageway to allow a compressed air to flow therethrough and a compensation air passageway in communication with the compressed air passageway. An external air is sucked into the compressed air passageway through the compensation air passageway and ejected together with the compressed air when the compressed air flows through the compressed air passageway.

Abstract: The present invention relates to an allocation technology for wireless network resources, and particularly to a resource allocation method for coexistence of multiple line topological industrial wireless networks. The present invention considers the coexistence problem of multiple TDMA-based line topological industrial wireless networks, including three parts: lower bound analysis of scheduling delay, allocation algorithm of inter-network resources and allocation algorithm of intra-network resources. The method uses overall scheduling delay and resource utilization ratio as measurement indexes when analyzing the lower bound of delay and designing resource allocation algorithms, and selects a best node combination in each time slot to occupy as many channel resources as possible to improve the resource utilization ratio and reduce the overall scheduling delay.

Abstract: A medical image processing apparatus according to an embodiment includes acquisition circuitry, extraction circuitry, calculation circuitry, and determination circuitry. The acquisition circuitry configured to acquire a first photographic image and a second photographic image that contain tree structures of a subject. The extraction circuitry configured to extract branch points of each of the tree structures in the first photographic image and the second photographic image. The calculation circuitry configured to calculate the similarities between the branch points in the first photographic image and the branch points in the second photographic image based on the feature quantities of the branch points. The determination circuitry configured to determine the corresponding path between the branch points in the first photographic image and the branch points in the second photographic image based on the similarities between the branch points calculated by the calculation circuitry.

Abstract: The present invention relates to the field of genetic engineering and hereditary engineering. The present invention discloses a ?-galactosidase (?-galactoside galactohydrolase, EC 3.2.1.23) mutant with high transglycosidase activity, which is obtained by single-site-saturation mutation of amino acid sequences of ?-galactosidase from Aspergillus candidus and Aspergillus oryzae, with own signal peptides removed. The transglycosidase activity of the mutant is over 15% higher than that of wild types. Meanwhile, the present invention also discloses a DNA molecule which encodes the mutant, a recombinant expression vector containing the DNA molecule, and a host cell expressing the DNA molecule. In addition, the present invention also provides a method for preparing ?-galactosidase mutant with high transglycosidase activity by using the recombinant expression vector and applications of the mutant, the DNA molecule, the recombinant expression vector and the host cell in preparation of ?-galactosidase.

Abstract: The present invention relates to the field of genetic engineering and hereditary engineering. The present invention discloses a ?-galactosidase (?-D-galactoside galactohydrolase, EC 3.2.1.23) mutant with high transglycosidase activity, which is obtained by single-site-saturation mutation of amino acid sequences of ?-galactosidase from Aspergillus candidus and Aspergillus oryzae, with own signal peptides removed. The transglycosidase activity of the mutant is over 15% higher than that of wild types. Meanwhile, the present invention also discloses a DNA molecule which encodes the mutant, a recombinant expression vector containing the DNA molecule, and a host cell expressing the DNA molecule. In addition, the present invention also provides a method for preparing ?-galactosidase mutant with high transglycosidase activity by using the recombinant expression vector and applications of the mutant, the DNA molecule, the recombinant expression vector and the host cell in preparation of ?-galactosidase.

Abstract: The disclosure describes embodiments of an electric quantity monitoring device and vehicle.

Abstract: A medical image processing apparatus according to an embodiment includes acquisition circuitry, extraction circuitry, calculation circuitry, and determination circuitry. The acquisition circuitry configured to acquire a first photographic image and a second photographic image that contain tree structures of a subject. The extraction circuitry configured to extract branch points of each of the tree structures in the first photographic image and the second photographic image. The calculation circuitry configured to calculate the similarities between the branch points in the first photographic image and the branch points in the second photographic image based on the feature quantities of the branch points. The determination circuitry configured to determine the corresponding path between the branch points in the first photographic image and the branch points in the second photographic image based on the similarities between the branch points calculated by the calculation circuitry.