Abstract: A 3D inversion method of DC method using seismic data constraints is disclosed, comprising processing of seismic data and inversion processing of resistivity data; by utilizing seismic wave interval velocity information to constrain the high-density electrical inversion, which can play a complementary role to a certain extent, it is beneficial to supplement the resolution of resistivity inversion with 3D seismic image information, reflect a boundary of subsurface electrical anomalous body, and further characterizes the boundary characteristics of anomalous body through comprehensive geological-geophysical analysis. Seismic data constraints are applied to 3D resistivity inversion, performing numerical simulation and inversion of electrical data under undulating terrain using the finite volume method and Gauss-Newton inversion method.

Abstract: A fingerprint template updating method and device is provided. The fingerprint template updating method includes: in response to an acquired current fingerprint matching one of at least one fingerprint template, determining whether to update the at least one fingerprint template using the current fingerprint based on a matching status of a first number of fingerprints acquired prior to the current fingerprint and/or a second number of fingerprints acquired after the current fingerprint.

Abstract: A fingerprint recognition method includes receiving an input fingerprint image; dividing the input fingerprint image into M image blocks, wherein M is an integer greater than 1, calculating a score of N image blocks among the M image blocks by inputting successive ones of the M image blocks into a neural network for fingerprint recognition until the score of the N image blocks meets a preset condition, wherein the score is a sum score, and N is an integer less than or equal to M, and terminating calculating the scores of remaining image blocks among the M image blocks, and recognizing a legitimacy of a fingerprint in the input fingerprint image.

Abstract: A fingerprint recognition method includes receiving an input fingerprint image; dividing the input fingerprint image into M image blocks, wherein M is an integer greater than 1, calculating a score of N image blocks among the M image blocks by inputting successive ones of the M image blocks into a neural network for fingerprint recognition until the score of the N image blocks meets a preset condition, wherein the score is a sum score, and N is an integer less than or equal to M, and terminating calculating the scores of remaining image blocks among the M image blocks, and recognizing a legitimacy of a fingerprint in the input fingerprint image.

Abstract: The disclosure relates to the technical field of photovoltaic power generation, in particular to a photovoltaic assembly convenient for angle adjustment, which includes a photovoltaic mounting base and a photovoltaic mounting frame. The photovoltaic mounting base is fixed on a fixture and is used for providing an installation station. The photovoltaic mounting frame is detachably mounted on the photovoltaic mounting base and can adjust angle, and a mounting end of the photovoltaic mounting frame can adjust mounting size and is used for mounting photovoltaic panels. The inclination angle of the photovoltaic panel can be detected in real time, and the angle of the photovoltaic panel can be adjusted according to environmental factors such as illumination, so as to adapt to the actual situation, ensure the smooth power generation and ensure the power generation.

Abstract: A fingerprint segmentation method and device is provided. The fingerprint segmentation method may include dividing a fingerprint image into a plurality of sub-images, pooling each sub-image to acquire a feature map of the fingerprint image, and segmenting the feature map based on a region growing algorithm to acquire a fingerprint region in the fingerprint image.

Abstract: The present disclosure discloses a driver console and a rail vehicle including the driver console. The driver console includes: a console body, a display screen, a control console, and a mechanical mechanism. The display screen is movable between a first position and a second position relative to the console body. The control console is movable between a third position and a fourth position relative to the console body. When the display screen is at the first position and the control console is at the third position, the driver console is in a manned state. When the display screen is at the second position and the control console is at the fourth position, the driver console is in an unmanned state. According to the driver console of the present disclosure, the manned state and the unmanned state can be effectively compatible with both the manned state and the unmanned state.

Abstract: A gain antenna and a communication device. The gain antenna includes a feed source, a reflector, a dielectric director, and a metal director, where the feed source includes a first radiation unit and a second radiation unit, the first radiation unit and the second radiation unit are arranged in a crossed manner; the dielectric director includes a cavity structure, the feed source and the reflector are disposed inside the cavity structure, and the intersection line of the feed source is an intersection line formed by the first radiation unit and the second radiation unit arranged in the crossed manner; and the metal director includes a plurality of metal units, and the plurality of metal units are disposed on an inner surface of the cavity structure and peripherally arranged around an axis of the cavity structure.

Abstract: A fingerprint image processing method includes: receiving a plurality of blocks of a block matrix representing a fingerprint image; and processing a first set of blocks of the plurality of blocks, the processing comprising: obtaining a plurality of candidate directions of a current block, wherein the plurality of candidate directions include an initial direction of the current block, and directions of at least a respective predetermined number of blocks on a left of the current block and a right of the current block, and the initial direction is determined using a direction of a left adjacent block and a direction of an upper adjacent block of the current block; and determining a direction of the current block from among the plurality of candidate directions based on Discrete Fourier Transform (DFT) energies in the plurality of candidate directions.

Abstract: Provided are a multi-blade wind generator. The multi-blade wind generator relates to the technical field of wind power generation, and includes a bottom plate, where a bracket is installed at an upper end of the bottom plate, a working housing is installed at an upper end of the bracket, and a generator is arranged in a first working cavity inside the working housing, and a motor shaft of the generator is connected with a first rotating shaft through a speed-increasing and heat-dissipating mechanism; the first rotating shaft penetrates a front end of the working housing and is fixedly connected with a rotating drum, and the working housing is rotatably connected with the rotating drum, and a cavity is arranged in the rotating drum, and a motor is fixedly arranged in the cavity in the rotating drum, and the motor is fixedly connected with a first bevel gear.

Abstract: The disclosure relates to the technical field of photovoltaic power generation, in particular to a photovoltaic assembly convenient for angle adjustment, which includes a photovoltaic mounting base and a photovoltaic mounting frame. The photovoltaic mounting base is fixed on a fixture and is used for providing an installation station. The photovoltaic mounting frame is detachably mounted on the photovoltaic mounting base and can adjust angle, and a mounting end of the photovoltaic mounting frame can adjust mounting size and is used for mounting photovoltaic panels. The inclination angle of the photovoltaic panel can be detected in real time, and the angle of the photovoltaic panel can be adjusted according to environmental factors such as illumination, so as to adapt to the actual situation, ensure the smooth power generation and ensure the power generation.

Abstract: A gain antenna and a communication device. The gain antenna includes a feed source, a reflector, a dielectric director, and a metal director, where the feed source includes a first radiation unit and a second radiation unit, the first radiation unit and the second radiation unit are arranged in a crossed manner; the dielectric director includes a cavity structure, the feed source and the reflector are disposed inside the cavity structure, and the intersection line of the feed source is an intersection line formed by the first radiation unit and the second radiation unit arranged in the crossed manner; and the metal director includes a plurality of metal units, and the plurality of metal units are disposed on an inner surface of the cavity structure and peripherally arranged around an axis of the cavity structure.

Abstract: A fingerprint enrolling method includes controlling a smart card having a fingerprint sensor disposed therein to capture a first fingerprint image of a finger at a first position. The smart card is controlled to move to a second position to capture a second fingerprint image of the finger at the second position when the first fingerprint image is successfully captured. The fingerprint enrolling method according to the disclosure enhances the user experience, increases the diversity of enrolling the fingerprint templates, and increases accuracy rate of the matching.

Abstract: An adjustable platform for installing a wind turbine generator comprises an adjustable platform shell, the adjustable platform shell is installed on a hull, pile legs are connected vertically in the adjustable platform shell in a sliding way, a plurality of adjusting jacks are arranged on the pile legs, an electric plug-in component is arranged in the adjustable platform shell and used for fitting with the adjusting jacks. The fitting of electric plug-in component with the adjusting jacks of the pile legs replaces the bolted connection between the installation platform and the pile legs, and the electric power is used to replace the manual operation, solving the technical problems in the prior art that bolted connection is required between the installation platform and the pile legs, bolts are required to be removed manually before the pile legs sink, and the labor cost is greatly consumed.

Abstract: The present disclosure relates to a fingerprint identification method, device, an electronic apparatus and a storage medium. The fingerprint identification method includes: capturing a fingerprint by a fingerprint sensor, identifying matching pairs of minutiae between the captured fingerprint and a reference fingerprint; calculating a first matching result based on the minutia matching pairs; identifying minutia surrounding features for each minutia of the captured fingerprint in the minutia matching pairs; determining, for each minutia in the minutia matching pairs, whether the minutia surrounding features of the captured fingerprint match with minutia surrounding features of the reference fingerprint; calculating a second matching result based on the determination; and generating an identification result based on the first matching result and the second matching result.

Abstract: A fingerprint enrolling method includes controlling a smart card having a fingerprint sensor disposed therein to capture a first fingerprint image of a finger at a first position. The smart card is controlled to move to a second position to capture a second fingerprint image of the finger at the second position when the first fingerprint image is successfully captured. The fingerprint enrolling method according to the disclosure enhances the user experience, increases the diversity of enrolling the fingerprint templates, and increases accuracy rate of the matching.

Abstract: A fingerprint template updating method and device is provided. The fingerprint template updating method includes: in response to an acquired current fingerprint matching one of at least one fingerprint template, determining whether to update the at least one fingerprint template using the current fingerprint based on a matching status of a first number of fingerprints acquired prior to the current fingerprint and/or a second number of fingerprints acquired after the current fingerprint.

Abstract: A fingerprint segmentation method and device is provided. The fingerprint segmentation method may include dividing a fingerprint image into a plurality of sub-images, pooling each sub-image to acquire a feature map of the fingerprint image, and segmenting the feature map based on a region growing algorithm to acquire a fingerprint region in the fingerprint image.

Abstract: Systems and methods for assessment of clinical events within clinical trials are provided. Computational models can be utilized to evaluate clinical events. Features to be utilized within a computational model can be derived from clinical reports and clinical data.