Abstract: Methods for creating a knowledge graph for a video are disclosed. Aspects include obtaining the video, processing the video to extract audio information and video information, and storing the extracted audio information and video information with a timestamp corresponding its occurrence in the video. Aspects also include creating a plurality of groups of the extracted audio information and video information based at least in part on the timestamps and extracting two or more keywords from each of the plurality of groups. Aspects further include identifying a relationship between the two or more keywords based on the extracted audio information and video information and creating a graph having a plurality of nodes and a plurality of links that connect a pair of nodes of the plurality of nodes. Each node corresponds to an extracted keyword and each link corresponds to the identified relationship between the pair of nodes.

Abstract: Various embodiments include a testing apparatus capable of testing gas flowing in a duct. The apparatus may include: a housing; a sampling tube extending from the housing to be inserted into the duct, the sampling tube including a gas entry channel and a gas exit channel isolated from each other, with a gas inlet of the gas entry channel and a gas outlet of the gas exit channel disposed in a part of the sampling tube leading into the duct and disposed at the same side of the sampling tube, wherein the gas inlet and the gas outlet have matching gas through-flow areas; and a sensor module disposed in the housing and in gas communication with the gas entry channel to test gas sampled from the gas entry channel.

Abstract: The present application relates to a hydrogenation catalyst, a process for producing the same and application thereof in the hydrotreatment of feedstock oil. The process comprises at least the following steps: (1) contacting a first active metal component and a first organic complexing agent with a carrier to obtain a composite carrier; (2) calcining the composite carrier to obtain a calcined composite carrier having a total carbon content of 1% by weight or less; and (3) contacting a second organic complexing agent with the calcined composite carrier to obtain the hydrogenation catalyst. The hydrogenation catalyst has both excellent hydrodesulfurization activity and hydrodenitrogenation activity, and exhibits a significantly prolonged service life.

Abstract: A sensor and a measurement method for measuring hydrogen content in metal melt. The sensor has a solid proton conductor element, a reference electrode, a quasi-electrode to be measured, a reference compound, a through pipe and an insulating ceramic adhesive. The measurement method has the steps of: (1) inserting the sensor and a corrosion-resistant electrode into the metal melt, and making sure that the solid proton conductor element is fully immersed into the metal melt, the quasi-electrode to be measured is in direct contact with the metal melt and the contact surface is the electrode to be measured; (2) connecting a potentiometer and the reference electrode cable or the metal gas guide pipe to the corrosion-resistant electrode, and measuring a potential difference between the reference electrode and the electrode to be measured; and (3) calculating the hydrogen content S of the metal melt.

Abstract: The present application relates to a hydrogenation catalyst, a process for producing the same and application thereof in the hydrotreatment of feedstock oil. The process comprises at least the following steps: (1) contacting a first active metal component and a first organic complexing agent with a carrier to obtain a composite carrier; (2) calcining the composite carrier to obtain a calcined composite carrier having a total carbon content of 1% by weight or less; and (3) contacting a second organic complexing agent with the calcined composite carrier to obtain the hydrogenation catalyst. The hydrogenation catalyst has both excellent hydrodesulfurization activity and hydrodenitrogenation activity, and exhibits a significantly prolonged service life.

Abstract: A sensor and a measurement method for measuring hydrogen content in metal melt. The sensor has a solid proton conductor element, a reference electrode, a quasi-electrode to be measured, a reference compound, a through pipe and an insulating ceramic adhesive. The measurement method has the steps of: (1) inserting the sensor and a corrosion-resistant electrode into the metal melt, and making sure that the solid proton conductor element is fully immersed into the metal melt, the quasi-electrode to be measured is in direct contact with the metal melt and the contact surface is the electrode to be measured; (2) connecting a potentiometer and the reference electrode cable or the metal gas guide pipe to the corrosion-resistant electrode, and measuring a potential difference between the reference electrode and the electrode to be measured; and (3) calculating the hydrogen content S of the metal melt.

Abstract: The present invention provides a pacemaker signal detecting method, a pacemaker signal detecting system, and an electrocardial detecting device. The pacemaker signal detecting system pre-processes an original pacemaker signal separated from a pacemaker electrocardial signal, calculates a number of basic morphological features based on the pre-processed original pacemaker signal, confirms an authenticity of a pacemaker signal according to the calculated basic morphological features, and records positions of the true pacemaker signal has been confirmed. The basic morphological features include a width, a slew rate, and amplitude of the pacemaker signal. The electrocardial detecting device of the present invention can detect the pacemaker signal more precisely and output the electrocardial signal marked with the pacemaker signal.

Abstract: The present invention relates to the field of a pharmaceutical compound, and more specifically, relates to a new oxazolidone compound, an enantiomer, a diastereoisomer and a raceme thereof, and a mixture thereof, and a pharmaceutically acceptable salt thereof, a preparation method thereof, an application thereof as a bioactive substance in a drug. The compound in the present invention has strong anticoagulant activity, does not affect the activity of thrombin, and can reduce the risk of hemorrhage. A pharmacokinetics experiment shows that the compound in the present invention further has good metabolic characteristics, and has a far better oral bioavailability than a positive contrastive agent rivaroxaban.

Abstract: The present invention relates to the field of a pharmaceutical compound, and more specifically, relates to a new oxazolidone compound, an enantiomer, a diastereoisomer and a raceme thereof, and a mixture thereof, and a pharmaceutically acceptable salt thereof, a preparation method thereof, an application thereof as a bioactive substance in a drug. The compound in the present invention has strong anticoagulant activity, does not affect the activity of thrombin, and can reduce the risk of hemorrhage. A pharmacokinetics experiment shows that the compound in the present invention further has good metabolic characteristics, and has a far better oral bioavailability than a positive contrastive agent rivaroxaban.

Abstract: The present invention provides a pacemaker signal detecting method, a pacemaker signal detecting system, and an electrocardial detecting device. The pacemaker signal detecting system pre-processes an original pacemaker signal separated from a pacemaker electrocardial signal, calculates a number of basic morphological features based on the pre-processed original pacemaker signal, confirms an authenticity of a pacemaker signal according to the calculated basic morphological features, and records positions of the true pacemaker signal has been confirmed. The basic morphological features include a width, a slew rate, and amplitude of the pacemaker signal. The electrocardial detecting device of the present invention can detect the pacemaker signal more precisely and output the electrocardial signal marked with the pacemaker signal.