Abstract: Disclosed is a method for optimization design of an artificial reef structure. The method includes: arranging an artificial reef model to be tested on a test platform, testing a flow field to obtain flow field data and a pull force of an artificial reef, analyzing the flow field data to obtain a flow velocity reference point, and carrying out optimization analysis in combination with the flow field data and the pull force.

Abstract: The disclosure belongs to a field of hydraulic equipment, and in particular to an anti-rolling damping device for floating wind turbines. The specific technical scheme: low ends of buoys are connected with an upper surface of a support plate through a damping assembly, and the damping assembly includes a piston cylinder fixedly arranged on the support plate, a piston plate is slidably arranged in the piston cylinder, a piston rod is arranged at one end of the piston plate far from the support plate, the piston rod extends out of the piston cylinder and is fixedly connected with the buoys, and a plurality of first through holes are arranged on a side wall of the piston cylinder near the lower part. The buoys sink with waves, and the piston plate slides downwards in the piston cylinder.

Abstract: The present disclosure relates to a simultaneous detection method and system for dissolved gas and partial discharge in insulating oil, and belongs to the field of electrical devices. The method includes the steps: freely diffusing the dissolved gas in the insulating oil to an F-P optical fiber interference cavity through an oil-gas separation membrane; coupling pump light and probe light into the F-P optical fiber interference cavity through a frequency division multiplexer; making, by an optoacoustic effect of the dissolved gas stimulated by the pump light and an ultrasonic wave generated by the partial discharge, the oil-gas separation membrane vibrate; detecting, by the probe light, vibration of the oil-gas separation membrane, which changes a cavity length, wherein when the probe light is reflected by the oil-gas separation membrane, an interference signal is generated due to the change of the cavity length.

Abstract: This application discloses a data processing method, system, and apparatus, a storage medium, and a device, and belongs to the field of database technologies. The method includes receiving, a trigger request; triggering, according to the trigger request, the first cloud encryptor to store a root key seed, an operating policy, a data key seed, and a data key identifier, and triggering the database proxy to store an encryption data dictionary, the operating policy indicating an operation policy of the first cloud encryptor. The method further includes receiving a data processing request from the client; sending first data that the data processing request requests to process and the data key identifier in the encryption data dictionary to the first cloud encryptor. The method further includes implementing the operating policy, processing the first data, and responding to the data processing request by using the second data.

Abstract: An ultramarine fluorescent protein, is a protein selected from (a) and (b) protein: (a) a protein consisting of an amino acid sequence set forth in SEQ ID:NO. 2; (b) a protein derived from (a) by substitution, deletion or addition with one or more amino acids in the amino acid sequence of (a) and having activity of the ultramarine fluorescent protein. The ultramarine fluorescent protein (UFP) has the characteristics of pH-insensitivity and light stability, and its chromophore can absorb long-wavelength ultraviolet (UVA) and release fluorescence at wavelength longer than 400 nm. And the aromatic amino acids residue (with content of 9.2%) can absorb medium wavelength ultraviolet (UVB) and release UVA.

Abstract: A limiter system for an active speaker may include at least one lowpass filter configured to receive an input signal and output a signal lower than a crossover frequency, at least one highpass filter, configured to receive an input signal and output a signal higher than the crossover frequency, a first allpass filter configured to adjust the phase of the signal lower than the crossover frequency, a second allpass filter configured to adjust the phase of the signal higher than the crossover frequency, a first limiter, configured to receive and limit the signal from the first allpass filter, a second limiter, configured to receive and limit the signal from the second allpass filter, and a mixer, configured to mix the signal lower from the first limiter and the signal from the second limiter.

Abstract: A limiter system for an active speaker may include at least one lowpass filter configured to receive an input signal and output a signal lower than a crossover frequency, at least one highpass filter, configured to receive an input signal and output a signal higher than the crossover frequency, a first allpass filter configured to adjust the phase of the signal lower than the crossover frequency, a second allpass filter configured to adjust the phase of the signal higher than the crossover frequency, a first limiter, configured to receive and limit the signal from the first allpass filter, a second limiter, configured to receive and limit the signal from the second allpass filter, and a mixer, configured to mix the signal lower from the first limiter and the signal from the second limiter.

Abstract: The present disclosure provides a limiter system. The limiter system includes a first equalization filter, a low-pass filter, a first limiter, a high-pass filter, a second limiter, and a mixer. The limiter system provided by the present disclosure further includes a second equalization filter. An audio signal from a signal source first passes through the first equalization filter, the signal equalized for the first time is divided into two signals, one signal is processed by the low-pass filter and the first limiter, the other signal is processed by the high-pass filter and the second limiter, and then the two processed signals enter the mixer to be mixed and outputted. The mixed output signal is subjected to second equalization filtering by the second equalization filter to avoid clipping distortion or to obtain a higher maximum sound level.

Abstract: A method and a system for instrument separating and reproducing for a mixture audio source is provided. The method and/or the system includes inputting selected music into an instrument separation model for extracting features therefrom, determining audio source signals of multiple channels for the separation of all instruments, each channel containing sound of one instrument, and transmitting the signals of the different channels to multiple speakers placed at designated positions for playing, which can reproduce or recreate an immersive sound field listening experience for users.

Abstract: A joint assembly for a truss bottom plate, the truss bottom plate includes a first bottom plate and a second bottom plate adjacent to each other, and a gap exists at an adjacent position between the first bottom plate and the second bottom plate; the joint assembly includes a first barrier plate and a second barrier plate; the first barrier plate is connected with the first bottom plate; the second barrier plate is connected with the second bottom plate; a part of the first barrier plate is arranged to overlap a part of the second barrier plate and cover the gap. A truss of an escalator or a passenger conveyor, the truss of the escalator or the passenger conveyor includes the joint assembly as described above.

Abstract: This application discloses a network communication method applied to a network communication system including a first network device in a first private network, a second network device in a second private network and a gateway device coupling the first private network to the second private network. The first network device receives a first data packet transmitted from a terminal to a target blockchain node, and acquires an actual network address of the target blockchain node; and generates a second data packet according to the first data packet and the actual network address, and transmits the second data packet to a virtual network address of the second network device in the second private network, so that the operation overheads generated when the gateway device generates virtual network addresses for blockchain nodes can be reduced, thereby saving a storage space of the gateway device.

Abstract: The present disclosure discloses a credit messaging system, a credit data storage method, a device, and a medium, and belongs to the field of network technologies. A server generates a unified user identifier based on user information of a user, generates, based on behavioral data of the user, credit data of the user through calculation by using a unified algorithm, and then, stores the credit data of the user and a corresponding user identifier into a block chain by using a target policy. In a block chain system, a unified user identifier is obtained for a same user, so that organizations in the block chain system may query credit data of the user according to the unified user identifier, thereby implementing high-quality data circulation and transactions while improving accuracy and comprehensiveness of queries for the credit data.

Abstract: A joint assembly for a truss bottom plate, the truss bottom plate includes a first bottom plate and a second bottom plate adjacent to each other, and a gap exists at an adjacent position between the first bottom plate and the second bottom plate; the joint assembly includes a first barrier plate and a second barrier plate; the first barrier plate is connected with the first bottom plate; the second barrier plate is connected with the second bottom plate; a part of the first barrier plate is arranged to overlap a part of the second barrier plate and cover the gap. A truss of an escalator or a passenger conveyor, the truss of the escalator or the passenger conveyor includes the joint assembly as described above.

Abstract: An ultramarine fluorescent protein, is a protein selected from (a) and (b) protein: (a) a protein consisting of an amino acid sequence set forth in SEQ ID:NO. 2; (b) a protein derived from (a) by substitution, deletion or addition with one or more amino acids in the amino acid sequence of (a) and having activity of the ultramarine fluorescent protein. The ultramarine fluorescent protein (UFP) has the characteristics of pH-insensitivity and light stability, and its chromophore can absorb long-wavelength ultraviolet (UVA) and release fluorescence at wavelength longer than 400 nm. And the aromatic amino acids residue (with content of 9.2%) can absorb medium wavelength ultraviolet (UVB) and release UVA.

Abstract: The present disclosure provides a media data processing method. The method includes obtaining, after determining that a user client performs a service operation with a first service client, first video data from the user client and second video data from the first service client; and synthesizing the first video data with the second video data to generate service operation video data. The method also includes transmitting the service operation video data to the user client and the first service client; obtaining a processing result of the service operation from the first service client; storing the service operation video data and generating storage information; receiving an access request that is transmitted by a second service client and that carries the storage information; and obtaining the service operation video data according to the storage information and returning the service operation video data to the second service client.

Abstract: This application discloses a data processing method, system, and apparatus, a storage medium, and a device, and belongs to the field of database technologies. The method includes receiving, a trigger request; triggering, according to the trigger request, the first cloud encryptor to store a root key seed, an operating policy, a data key seed, and a data key identifier, and triggering the database proxy to store an encryption data dictionary, the operating policy indicating an operation policy of the first cloud encryptor. The method further includes receiving a data processing request from the client; sending first data that the data processing request requests to process and the data key identifier in the encryption data dictionary to the first cloud encryptor. The method further includes implementing the operating policy, processing the first data, and responding to the data processing request by using the second data.

Abstract: The present disclosure provides a limiter system. The limiter system includes a first equalization filter, a low-pass filter, a first limiter, a high-pass filter, a second limiter, and a mixer. The limiter system provided by the present disclosure further includes a second equalization filter. An audio signal from a signal source first passes through the first equalization filter, the signal equalized for the first time is divided into two signals, one signal is processed by the low-pass filter and the first limiter, the other signal is processed by the high-pass filter and the second limiter, and then the two processed signals enter the mixer to be mixed and outputted. The mixed output signal is subjected to second equalization filtering by the second equalization filter to avoid clipping distortion or to obtain a higher maximum sound level.

Abstract: This application discloses a data processing method, system, and apparatus, a storage medium, and a device, and belongs to the field of database technologies. The method includes receiving, a trigger request; triggering, according to the trigger request, the first cloud encryptor to store a root key seed, an operating policy, a data key seed, and a data key identifier, and triggering the database proxy to store an encryption data dictionary, the operating policy indicating an operation policy of the first cloud encryptor. The method further includes receiving a data processing request from the client; sending first data that the data processing request requests to process and the data key identifier in the encryption data dictionary to the first cloud encryptor. The method further includes implementing the operating policy, processing the first data, and responding to the data processing request by using the second data.

Abstract: This application discloses a network communication method applied to a network communication system including a first network device in a first private network, a second network device in a second private network and a gateway device coupling the first private network to the second private network. The first network device receives a first data packet transmitted from a terminal to a target blockchain node, and acquires an actual network address of the target blockchain node; and generates a second data packet according to the first data packet and the actual network address, and transmits the second data packet to a virtual network address of the second network device in the second private network, so that the operation overheads generated when the gateway device generates virtual network addresses for blockchain nodes can be reduced, thereby saving a storage space of the gateway device.