Abstract: A series-parallel switching method and apparatus, a power conversion circuit, and an electronic device are provided. The power conversion circuit includes a control unit and two power conversion modules. The two power conversion modules are connected in series or connected in parallel. Either of the power conversion modules includes output terminals and first switch branches, where the first switch branches are connected to the output terminals, and the output terminals are configured to connect to a load. The first switch branches are connected to the control unit, and the first switch branches are configured to switch an operating state according to a control signal output by the control unit, to provide an energy discharge loop when the two power conversion modules are switched from a parallel connection to a series connection, where the operating state includes a stopping state and a running state.

Abstract: A method and an apparatus for cloud service management, and a readable storage medium are disclosed. The method includes steps of: by a service management module in response to receipt of a work order of an application request, splitting the work order, creating a department and a virtual data center (VDC), creating a user, and binding the user to the department and the VDC, where the work order comprises a resource creation request and a resource parameter; by a resource management module, sending the resource parameter to an underlying resource pool through an interface; by the resource management module, sending a first notification to a software defined network (SDN) controller, where the first notification is a notification requesting to send a flow table; and by the SDN controller, sending the flow table to gateway device according to the first notification.

Abstract: An isolated rat liver cancer stem cell line which is named as TW-1 is provided. A method for drug screening by using the isolated rat liver cancer stem cell line is also provided.

Abstract: A semiconductor chip includes semiconductor dice contained in a packaging apparatus including a cover and a plate, thereby forming a vapor chamber. The semiconductor dice and intermediate layers are alternately stacked. A capillary mechanism is provided on a horizontal internal face of the cover. Nets are provided on vertical internal faces of the cover, around the capillary mechanism. Each of the intermediate layers includes protuberances in contact with the nets. A channel is defined between any adjacent two of the protuberances. The channels travel past the intermediate layers. Coolant filled in the vapor chamber is turned into vapor after absorbing heat. The vapor ascends to the cover via the channels. The coolant is returned into liquid after transferring heat to the cover. The liquid descends to the plate. Thus, the coolant is circulated in the vapor chamber. Each of the intermediate layers includes a capillary structure to facilitate the circulation of the coolant.

Abstract: A semiconductor chip includes semiconductor dice contained in a packaging apparatus including a cover and a plate, thereby forming a vapor chamber. The semiconductor dice and intermediate layers are alternately stacked. A capillary mechanism is provided on a horizontal internal face of the cover. Nets are provided on vertical internal faces of the cover, around the capillary mechanism. Each of the intermediate layers includes protuberances in contact with the nets. A channel is defined between any adjacent two of the protuberances. The channels travel past the intermediate layers. Coolant filled in the vapor chamber is turned into vapor after absorbing heat. The vapor ascends to the cover via the channels. The coolant is returned into liquid after transferring heat to the cover. The liquid descends to the plate. Thus, the coolant is circulated in the vapor chamber. Each of the intermediate layers includes a capillary structure to facilitate the circulation of the coolant.

Abstract: The present invention discloses an active extension type car front bumper. Three fixed sleeves are rigidly connected to a cross beam of a U-shaped fixed frame, an impact rod is fitted in each fixed sleeve, a front end of each impact rod passes through the cross beam and is fixedly connected to the bumper, and a rear end of each impact rod is fixedly connected to a movable cross beam arranged horizontally left and right. Left and right longitudinal beams of the U-shaped fixed frame are each provided with a movable longitudinal beam that is movable forward and backward. Left and right ends of the movable cross beam respectively extend into the left and right longitudinal beams. A rear end of each movable longitudinal beam is fixedly connected to a hydraulic mechanism. An energy absorption mechanism is provided between every two adjacent fixed sleeves.

Abstract: According to a first aspect of this specification, there is disclosed a computer implemented method comprising: training, based on an initial behavior goal and using reinforcement-learning, a reinforcement-learning model for controlling behavior of a non-playable character in a computer game environment; converting the trained reinforcement-learning model into a behavior tree model for controlling behavior of the non-playable character; editing, based on a user input, the behavior tree model to generate an updated behavior tree model for controlling behavior of the non-playable character; and outputting a final model for controlling non-player character behavior for use in the computer game environment, wherein the model for controlling non-player character behavior is based at least in part on the updated behavior tree model.

Abstract: Various aspects of the subject technology relate to systems, methods, and machine-readable media for user matchmaking. The method includes training a quality model and an embedding model based on historical data and user control options. The method also includes receiving user control options and matchmaking requests from users. The method also includes embedding, through the embedding model, user data regarding the users into an embedded space based on the received user control options and the matchmaking requests. The method also includes determining, based on the embedded user data, that a distance between two users satisfies a distance threshold. The method also includes matching the two users when the determined distance satisfies the distance threshold.

Abstract: Systems and methods are provided for generating a trackable video-based product. One method comprises receiving a video comprising a plurality of frames from a video database; receiving product information associated with at least one product for sale from a product database; and receiving annotation data linking the received product information to at least one of the plurality of frames from a metadata database. The method may further comprise modifying a database to include a link between the at least one of the plurality of frames and the product information and generating an augmented video using the annotation data and the received video.

Abstract: Embodiments of the systems and methods described herein can automatically measure the difficulty metrics associated with various aspects of a video game using an artificial intelligence system. The artificial intelligence system may include multiple game agents. Telemetry data associated with the gameplay of each game agent may be recorded while the game application is automatically executed by the game agents. The telemetry data may be communicated to a data analysis system which can calculate game difficulty metrics for various aspects of the game. The data analysis system can determine game difficulty associated with the various aspects based on the game difficulty metrics. The results from the data analysis system may be visualized and communicated to a game developer for updating the operations of the video game.

Abstract: The present invention discloses an active extension type car front bumper. Three fixed sleeves are rigidly connected to a cross beam of a U-shaped fixed frame, an impact rod is fitted each fixed sleeve, a front end of each impact rod passes through the cross beam and is fixedly connected to the bumper, and a rear end of each impact rod is fixedly connected to a movable cross beam arranged horizontally left and right. Left and right longitudinal beams of the U-shaped fixed frame are each provided with a movable longitudinal beam that is movable forward and backward. Left and right ends of the movable cross beam respectively extend into the left and right longitudinal beams. A rear end of each movable longitudinal beam is fixedly connected to a hydraulic mechanism. An energy absorption mechanism is provided between every two adjacent fixed sleeves.

Abstract: Embodiments presented herein include systems and methods for performing dynamic difficulty adjustment. Further, embodiments disclosed herein perform dynamic difficulty adjustment using processes that may not be detectable or are more difficult to detect by users compared to static and/or existing difficulty adjustment processes. In some embodiments, historical user information utilized by a machine learning system to generate a prediction model that predicts an expected duration of game play, such as for example, an expected churn rate, a retention rate, the length of time a user is expected to play the game, or an indication of the user's expected game play time relative to a historical set of users who have previously played the game. Before or during game play, the prediction model can be applied to information about the user to predict the user's expected duration of game play.

Abstract: A method and an apparatus for cloud service management, and a readable storage medium are disclosed. The method includes steps of: by a service management module in response to receipt of a work order of an application request, splitting the work order, creating a department and a virtual data center (VDC), creating a user, and binding the user to the department and the VDC, where the work order comprises a resource creation request and a resource parameter; by a resource management module, sending the resource parameter to an underlying resource pool through an interface; by the resource management module, sending a first notification to a software defined network (SDN) controller, where the first notification is a notification requesting to send a flow table; and by the SDN controller, sending the flow table to gateway device according to the first notification.

Abstract: A method for processing time series data comprises: dividing time series data into a plurality of data fragments according to an objective function, the plurality of data fragments having a greatest similarity; in response to determining that at least one data fragment does not satisfy an iteration termination condition, performing following iteration operations on the at least one data fragment; and constructing a time series base pattern library by using a plurality of time series base patterns. The iteration operations includes: using the at least one data fragment as at least one update time series fragment; dividing each update time series fragment into a plurality of update data fragments; using each update data fragment that does not satisfy the iteration termination condition as a new update time series fragment; and using each update data fragment that satisfies the iteration termination condition as a time series base pattern.

Abstract: The present invention relates to a fluorescence immunochromatographic assay kit and an application method thereof, belonging to the technical field of in vitro diagnostic products for animal diseases. The kit comprises a plastic case, a test reagent card and a sample diluent. The case comprises a bottom case and an upper cover, wherein a test strip slot is formed in the bottom case, and a scan window and a sample loading hole are arranged on the upper cover; wherein the test reagent card consists of a sample pad, a binding pad, a nitrocellulose membrane and an absorbent paper which are sequentially adhered on a bottom board; the position of the scan window is matched with the position of the nitrocellulose membrane, and the position of the sample loading hole is matched with the position of the sample pad.

Abstract: The present disclosure provides embodiments of a virtual mapping system for using real world geographical locations to generate virtual environments within game applications. The virtual mapping system allows a game application to identify geographical information associated with real world locations. The geographical information can be used by the game application to recreate the selected geographical location using virtual assets from the game application.

Abstract: According to a first aspect of this specification, there is disclosed a computer implemented method comprising: training, based on an initial behavior goal and using reinforcement-learning, a reinforcement-learning model for controlling behavior of a non-playable character in a computer game environment; converting the trained reinforcement-learning model into a behavior tree model for controlling behavior of the non-playable character; editing, based on a user input, the behavior tree model to generate an updated behavior tree model for controlling behavior of the non-playable character; and outputting a final model for controlling non-player character behavior for use in the computer game environment, wherein the model for controlling non-player character behavior is based at least in part on the updated behavior tree model.

Abstract: Methods for providing multi-objective experiments with dynamic group assignment are provided. In one aspect, a method includes receiving, from a configuration component of an experiment management system, a plurality of objectives and at least one constraint for an experiment. The method also includes assigning a test population of the experiment into a plurality of groups. The method also includes determining a progress summary that predicts completion rates for the plurality of objectives according to the at least one constraint. The method also includes modifying a prioritization of the plurality of objectives to optimize the predicted completion rates. The method also includes receiving a request to add additional users into the test population. The method also includes distributing the additional users into the plurality of groups according to the modified prioritization. Systems and machine-readable media are also provided.

Abstract: Embodiments of the present specification provide a method and an apparatus for generating a smart contract test case. A test case that can be parsed by the smart contract includes one or more structured parameters, and the structured parameters are used to invoke interfaces of the smart contract. If a structured parameter can be identified by an interface of the smart contract, a mutated structured parameter obtained by mutating the structured parameter based on a parameter structure of the structured parameter can also be identified by the interface of the smart contract, a test case including the mutated structured parameter can be generated, which ensures that the test case generated can be executed by the smart contract and can cover a deeper program path in the smart contract, thereby improving the efficiency of testing the smart contract.

Abstract: Embodiments of the present specification provide a method and an apparatus for generating a smart contract test case. A test case that can be parsed by the smart contract includes one or more structured parameters, and the structured parameters are used to invoke interfaces of the smart contract. If a structured parameter can be identified by an interface of the smart contract, a mutated structured parameter obtained by mutating the structured parameter based on a parameter structure of the structured parameter can also be identified by the interface of the smart contract, a test case including the mutated structured parameter can be generated, which ensures that the test case generated can be executed by the smart contract and can cover a deeper program path in the smart contract, thereby improving the efficiency of testing the smart contract.