Abstract: Embodiments of this application provide a method for annotating video data performed by a computer device. The method includes: displaying target video data in a video application; displaying annotated media data in the video application in response to a trigger operation performed on a progress time point annotation function in the video application, the annotated media data being media data associated with a current progress time point, the current progress time point being a progress time point corresponding to the trigger operation to which the target video data is played; and sharing the annotated media data with another user in response to a confirmation operation performed on the annotated media data, the annotated media data enabling the second user to perform a progress jump on the target video data based on the current progress time point. Through this application, efficiency of video progress positioning can be improved.

Abstract: A video-based interaction method includes playing a video on a video playback interface to which a target object is logged in, acquiring a local viewing marking record of the video and scene identifiers of markable scene clips in the video, comparing the local viewing marking record with the scene identifiers to determine an unmarked target scene clip in the video, displaying, in response to playing to the target scene clip and on the video playback interface, a target scene clip marking entry that indicates performing viewing marking on the target scene clip, and displaying a viewing marking credential for the target clip in response to a viewing marking trigger operation on the target scene clip marking entry. The viewing marking credential covers a part of the video playback interface, is an independent operable object, and includes description information of the video and identity information of the target object.

Abstract: A method for anti-counterfeit inspection of a QR code of an agricultural product based on a watermark library. The method includes establishing a watermark-containing QR code library; tracing a QR code watermark image; and verifying the QR code watermark image. Watermark-containing QR codes are generated by a QR code generation module and a watermark library, and the watermark-containing QR codes are constructed as the watermark-containing QR code library. The watermark-containing QR code library is used to verify the QR code watermark image, and the QR code watermark image is obtained by tracing the watermark-containing QR codes. In the method for anti-counterfeit inspection of a QR code of an agricultural product based on a watermark library, an image watermark library is designed, so that the embedding of a watermark is no longer single.

Abstract: The invention relates to a catheter useful in recording His electrogram alternans. The catheter includes a catheter probe containing at least one row of receiving poles positioned at an edge of the catheter probe, equidistantly spaced from each other.

Abstract: A method for anti-counterfeit inspection of a QR code of an agricultural product based on a watermark library. The method includes step 1. establishing a watermark-containing QR code library; step 2. tracing a QR code watermark image; and step 3. verifying the QR code watermark image. Watermark-containing QR codes are generated by a QR code generation module and a watermark library, and the watermark-containing QR codes are constructed as the watermark-containing QR code library. The watermark-containing QR code library is used to verify the QR code watermark image, and the QR code watermark image is obtained by tracing the watermark-containing QR codes. In the method for anti-counterfeit inspection of a QR code of an agricultural product based on a watermark library, an image watermark library is designed, so that the embedding of a watermark is no longer single.

Abstract: A method and a device for training a model in a distributed system are disclosed, so as to reduce load of a master node (101) during model training. The method includes: receiving, by a parameter server (1022) in a first slave node (102), a training result sent by a parameter client (1021) in at least one slave node (102) in the distributed system, where the first slave node (102) is any slave node (102) in the distributed system, and a parameter client (1021) in each slave node (102) obtains a training result by executing a training task corresponding to a sub-model stored on a parameter server (1022) in the slave node (102); and updating, by the parameter server (1022) in the first slave node (102) based on the received training result, a sub-model stored on the parameter server in the first slave node.

Abstract: The invention relates to a catheter useful in recording His electrogram alternans. The catheter includes a catheter probe containing at least one row of receiving poles positioned at an edge of the catheter probe, equidistantly spaced from each other.

Abstract: The invention relates to a catheter useful in recording His electrogram alternans. The catheter includes a catheter probe containing at least one row of receiving poles positioned at an edge of the catheter probe, equidistantly spaced from each other.

Abstract: A method and a device for training a model in a distributed system are disclosed, so as to reduce load of a master node (101) during model training. The method includes: receiving, by a parameter server (1022) in a first slave node (102), a training result sent by a parameter client (1021) in at least one slave node (102) in the distributed system, where the first slave node (102) is any slave node (102) in the distributed system, and a parameter client (1021) in each slave node (102) obtains a training result by executing a training task corresponding to a sub-model stored on a parameter server (1022) in the slave node (102); and updating, by the parameter server (1022) in the first slave node (102) based on the received training result, a sub-model stored on the parameter server in the first slave node.

Abstract: The invention relates to a catheter useful in recording His electrogram alternans. The catheter includes a catheter probe containing at least one row of receiving poles positioned at an edge of the catheter probe, equidistantly spaced from each other.

Abstract: A system (10) for achieving a desired cardiac rate and cardiac rhythm in response to atrial fibrillation in a heart includes an atrial fibrillation (AF) detector (40) for detecting AF. The system also includes an atrioventricular node vagal stimulator (AVN-VS) (30) for stimulating vagal nerves associated with an atrioventricular (AV) node of the heart. The system further includes an on-demand pace maker (40) for providing ventricular pacing stimulation to the heart. A control unit (20) is operatively connected with the AF detection device, the AVN-VS device, and the on-demand pacing device. The control unit is responsive to AF detection by the AF detector to cause the AVN-VS to stimulate the vagal nerves to help reduce the ventricular rate of the heart. The control unit is further responsive to AF detection by the AF detector to cause the on-demand pace maker to help regulate the ventricular rate of the heart.

Abstract: Vagal stimulation applied to the atrioventricular nodal (“AVN”) fat pad and the sinoatrial nodal (“SAN”) fat pad via epicardial leads is useful for controlling cardiac arrhythmia, including atrial fibrillation (‘AF”). In the case of AF, for example, vagal stimulation may be applied initially to the AVN fat pad to reduce ventricular rate, and vagal stimulation may be applied to the SAN fat pad after restoration of sinus rhythm to control atrial rate. The technique is applicable to control acute AF and chronic AF. The vagal stimulation may be optimized for exciting ganglia in the fat pads to produce dromotropic and chronotropic effects in the atrioventricular node and the sinoatrial node, respectively. In addition, the SAN fat lead can also be used to pace the atrium in case of sinus bradycardia.

Abstract: A bifurcated electrical lead includes an elongated lead body having a proximal end portion, a bifurcated distal end portion, and a main body portion extending between the proximal end portion and the bifurcated distal end portion. The bifurcated distal end portion includes oppositely disposed first and second arm members. The first and second arm members respectively include first and second electrodes operably coupled to first and second anchoring members. The first electrode is substantially parallel to the second electrode.

Abstract: A system (10) for achieving a desired cardiac rate and cardiac rhythm in response to atrial fibrillation in a heart includes an atrial fibrillation (AF) detector (40) for detecting AF. The system also includes an atrioventricular node vagal stimulator (AVN-VS) (30) for stimulating vagal nerves associated with an atrioventricular (AV) node of the heart. The system further includes an on-demand pace maker (40) for providing ventricular pacing stimulation to the heart. A control unit (20) is operatively connected with the AF detection device, the AVN-VS device, and the on-demand pacing device. The control unit is responsive to AF detection by the AF detector to cause the AVN-VS to stimulate the vagal nerves to help reduce the ventricular rate of the heart. The control unit is further responsive to AF detection by the AF detector to cause the on-demand pace maker to help regulate the ventricular rate of the heart.

Abstract: A method is disclosed to control the ventricular rate in a patient's heart, particularly for treating atrial fibrillation or preventing tachyarrhythmia. The patient's atrioventricular nodal area is injected with autologous fibroblast cells and/or bipolymers to create a barrier to slow the electrical conduction from the fibrillating atria to the ventricles.

Abstract: A system (10) for achieving a desired cardiac rate and cardiac rhythm in response to atrial fibrillation in a heart includes an atrial fibrillation (AF) detector (40) for detecting AF. The system also includes an atrioventricular node vagal stimulator (AVN-VS) (30) for stimulating vagal nerves associated with an atrioventricular (AV) node of the heart. The system further includes an on-demand pace maker (40) for providing ventricular pacing stimulation to the heart. A control unit (20) is operatively connected with the AF detection device, the AVN-VS device, and the on-demand pacing device. The control unit is responsive to AF detection by the AF detector to cause the AVN-VS to stimulate the vagal nerves to help reduce the ventricular rate of the heart. The control unit is further responsive to AF detection by the AF detector to cause the on-demand pace maker to help regulate the ventricular rate of the heart.