Abstract: A focus detection method includes: acquiring an image of a test object through a to-be-tested image acquisition device, the test object including a character, and a clarity of the character corresponding to a minimum clarity with which a content of the character is still able to be recognized using a character recognition technology; performing character recognition on the image to obtain a recognition result; and determining a focus detection result for the to-be-tested image acquisition device based on the recognition result.

Abstract: A method and a system for determining a safe under keel clearance of an ultra-large ship are provided. The method comprises: acquiring operation parameter values of the ship; obtaining fluid pressure according to the values; obtaining a squat force and a trim moment of the ship according to the pressure; establishing a mirror image model based on speed potential to establish a squat clearance calculation model for the ship; determining a half-wave rising height with above calculation model; obtaining draught and trim changes according to the squat force and the trim moment, to determine a maximum squat clearance of the hull; determining the safe under keel clearance; and controlling the squat clearance of the ship according to the safe under keel clearance of the ship, to avoid navigation dangers, and improve the loading rate.

Abstract: The present application discloses a method and a system for assessing and early warning ship collision risk, an electronic device, and a computer-readable storage medium. The method includes: acquiring hydrological information and meteorological information of a current position of a designated ship, and acquiring navigation information of the designated ship and other ships; acquiring real-time collision risk of the designated ship through evaluation of a trained adaptive collision risk assessment model; determining a risk level of the designated ship according to the real-time collision risk; and outputting an early warning message associated with the risk level to the designated ship. This solution constructs an adaptive collision risk assessment model, and evaluates the ship collision risk by combining regional historical information and current navigation information, which can improve assessment accuracy of the ship collision risk and timeliness of early warning.

Abstract: An information processing method comprising: obtaining environment information of a video file in a preview state, where the preview state is a display state before the video file is played; in response to the environment information satisfying a first pre-set condition, indicating the video file by a first cover; and in response to the environment information satisfying a second pre-set condition, indicating the video file by a second cover.

Abstract: A method and a system for determining a safe under keel clearance of an ultra-large ship are provided. The method comprises: acquiring operation parameter values of the ship; obtaining fluid pressure according to the values; obtaining a squat force and a trim moment of the ship according to the pressure; establishing a mirror image model based on speed potential to establish a squat clearance calculation model for the ship; determining a half-wave rising height with above calculation model; obtaining draught and trim changes according to the squat force and the trim moment, to determine a maximum squat clearance of the hull; determining the safe under keel clearance; and controlling the squat clearance of the ship according to the safe under keel clearance of the ship, to avoid navigation dangers, and improve the loading rate.

Abstract: An information processing method comprising: obtaining environment information of a video file in a preview state, where the preview state is a display state before the video file is played; in response to the environment information satisfying a first pre-set condition, indicating the video file by a first cover; and in response to the environment information satisfying a second pre-set condition, indicating the video file by a second cover.

Abstract: Method, apparatus, and computer-readable storage medium for video file processing are provided. A video file is obtained, which includes a first save mode. The video file is detected to obtain a detection result. According to the corresponding detection result, at least one second save mode different from the first save mode is generated to save the video file.

Abstract: Method, apparatus, and computer-readable storage medium for video file processing are provided. A video file is obtained, which includes a first save mode. The video file is detected to obtain a detection result. According to the corresponding detection result, at least one second save mode different from the first save mode is generated to save the video file.

Abstract: The present invention provides a text input method comprising following steps: receiving a text message input by a user; extracting keywords from the text message and displaying the keywords in a special manner; in response to the user's selection of the keyword, entering into a function module in relation to the keyword. Accordingly, the present invention further provides a text input system, which applies the aforementioned text input method. Additionally, the present invention further provides a text input device comprising: an input panel for providing an input area for users; a first display panel for displaying a text message input by a user, wherein the keywords in the text message are displayed in a special manner; a second display panel for displaying a shortcut icon for a function module in relation to a keyword.

Abstract: The invention provides a method for treating a neuronal-associated condition comprising administering a composition comprising a therapeutically effective amount of a polypeptide or a biologically active fragment thereof, the polypeptide or the fragment thereof capable of modulating the interaction between Nogo-ephrinB and/or Nogo-Grb4 third SH3 domain. There are also provided isolated polypeptide or fragment thereof. The invention further provides a method of screening a compound for effectiveness as an agonist or as an antagonist of the polypeptide or fragment thereof according to the invention.