Abstract: A signal transmission system includes a first laser signal transmission system, a second laser signal transmission system and a control module. The first laser signal transmission system includes an electric signal generation module, a first electro-optical conversion module and a first optical-electro conversion module. The electric signal generation module outputs a first current and a first voltage. The first electro-optical conversion module outputs a first optical signal. The first optical-electro conversion module outputs a second voltage. The second laser signal transmission system alternately inputs the first voltage and a calibration voltage and outputs a third voltage. The control module determines the first voltage based on the correspondence relationship between the calibration voltage and the third voltage and based on the third voltage, and determines a first electro-optical conversion coefficient based on a ratio of the first voltage to the second voltage.

Abstract: A device for adjusting biopsy angles and a biopsy needle guide are provided. The device for adjusting biopsy angles comprises an angle fixing base and a needle guiding base, the needle guiding base being rotatably connected with the angle fixing base at their first ends, the needle guiding base having a needle tract for guiding a biopsy needle, wherein an U-shaped limiting assembly formed on one side of the needle guiding base surrounds a angle fixing sheet extending from the angle fixing base at their second ends, and a positioning adjuster mounted on the U-shaped limiting assembly is movably engaged with positioning holes on the angle fixing sheet so as to be inserted into the positioning holes or be released out of the positioning holes. The needle guiding base can be rotated at a large angle to disengage from the angle fixing sheet, and is convenient for cleaning.

Abstract: Provided is an electromagnetic induction potentiometer adaptive for full-stroke detection, including a movable element configured to obtain an input for position change, a permanent magnet attached to the movable element, a magnetic induction sensor configured to sense positions of the permanent magnet and generate an initial potential signal, and an full-stroke adaptive output adjusting unit configured to collect the initial potential signal and adaptively adjust the initial potential signal to an actual potential signal corresponding to a full stroke of position changing of the movable element.

Abstract: This application provides a resource configuration method performed by a computer device. The method includes: acquiring configuration data including m candidate configuration resources to configure a target item in a target application, m being a positive integer; selecting, from the m candidate configuration resources according to scenario identification information respectively corresponding to the m candidate configuration resources, n candidate configuration resources matching a current operating scenario of the target application, n being a positive integer less than or equal to m; selecting a target configuration resource from the n candidate configuration resources according to weights respectively corresponding to the n candidate configuration resources; and configuring the target item by using the target configuration resource.

Abstract: Embodiments of the present disclosure provide an earphone, comprising a sound production component, comprising a transducer and a housing accommodating the transducer, a sound outlet hole being provided on an inner side surface of the sound production component, the inner side facing an auricle of a user, and the sound outlet hole being configured to transmit a sound produced by the transducer out of the housing toward an ear canal of the user; and an ear-hook, configured to place the sound production component at a position adjacent to the car canal but not blocking an ear canal opening in a wearing state; wherein, at least a portion of the sound production component inserts into a cavum concha.

Abstract: Treatment of multiple sclerosis with copper nanoclusters (CuNCs).

Abstract: This application provides methods, apparatus, electronic devices, and computer-readable storage medium for archiving blockchain data.

Abstract: The present disclosure provides a sound producing device, at least comprising a housing assembly. The housing assembly comprises a housing and a sealing member. The housing is provided with a plug-in hole, and the plug-in hole runs through a side wall of one side of the housing; the sealing member is used for plugging and sealing the plug-in hole; the plug-in hole comprises at least one hole wall segment provided along a plugging direction of the sealing member; the cross-sectional area of a reference cross section of at least part of the at least one hole wall segment perpendicular to the plugging direction of the sealing member increases gradually along the plugging direction; the sealing member is in plugging fit with the at least one hole wall segment.