Abstract: A metro rail corrugation measurement method based the Seq2Seq model and vibration and noise data fusion comprises the following steps: Constructing a time series data set corresponding to floor longitudinal acceleration and train speed based on historical data of metro trains; Constructing the metro train mileage matching prediction model based on the Seq2Seq model, training the metro train mileage matching prediction model by time series data sets, and inputting the inside floor longitudinal acceleration of the metro train to be detected into the trained metro train mileage matching prediction model to obtain the running speed of the metro train to be detected. According to the vibration and noise data of the metro train to be detected, the vibration and noise composite index of the rail corrugation is calculated to determine the wavelength and amplitude information corresponding to the rail corrugation.

Abstract: An integrated magnetic component and a manufacturing method thereof for a multi-module DC-DC converter are provided. The integrated magnetic component includes N primary windings, N secondary windings and N magnetic cores, and N is an integer greater than one. The N magnetic cores are arranged sequentially, and each magnetic core includes a plate, first and second common core legs, an inductor core leg and a transformer core leg. The first common core leg and the second common core leg are disposed at a first side and a second side of the plate respectively. The inductor core leg is configured to be wound with a corresponding primary or secondary winding, and the transformer core leg is configured to be wound with the corresponding primary and secondary windings interleaved with each other.

Abstract: The present disclosure relates to a magnetic component and an integrated magnetic assembly. The magnetic component includes a magnetic core set, a primary winding, a first secondary winding, a second secondary winding and a tertiary winding. The magnetic core set includes a central column, a first and a second lateral column. The first lateral column includes a first leg and a second leg. The second lateral column includes a third leg and a fourth leg. A first segment of the tertiary winding is wound on one of the first leg and the second leg, and a second segment of the tertiary winding is wound on one of the third leg and the fourth leg. The two lateral columns are divided into two legs respectively to achieve partial coupling through the tertiary winding. Consequently, the advantages of adjustable and enhanced coupling coefficient, reduced loss, saving footprint and enhanced performance are achieved.

Abstract: An integrated magnetic component is disclosed and includes a plurality of PCBs, a transformer and a plurality of inductors. The transformer includes a plurality of primary windings, a plurality of secondary windings, and two pieces of transformer cores. The primary windings and the secondary windings are disposed on the PCBs and wound around the two pieces of transformer cores. The inductors are disposed on the PCBs and connected to the transformer. The primary windings and the secondary windings of the transformer are disposed correspondingly in pairs on one of the PCBs, and the inductors are disposed adjacent to the transformer.

Abstract: The present disclosure discloses a male massager with a telescopic rotating structure including a telescopic mechanism, a rotating mechanism, a telescopic rotating shaft, and a massage component. The telescopic mechanism independently drives the telescopic rotating shaft to extend and retract, allowing the massage component to perform an independent telescopic motion, thereby activating an independent telescopic motion mode; the rotating mechanism independently drives the telescopic rotating shaft to rotate, allowing the massage component to perform an independent rotational motion, thereby activating an independent rotational motion mode; the telescopic mechanism and the rotating mechanism respectively drive the telescopic rotating shaft to extend-and-retract and rotate, allowing the massage component to perform telescopic and rotational motions simultaneously, thereby activating a composite motion mode with telescopic and rotational motions.

Abstract: In various examples, methods and systems are provided for sampling and transmitting the most useful information from a radar signal representing a scene while staying within the computational and storage confines of a standard automotive radar sensor and the bandwidth constraints of a standard communication link between a radar sensor and processing unit. Disclosed approaches may select a patch of frequency bins that correspond to radar signals based at least on proximities of the frequency bins to one or more frequency bins corresponding to at least one peak and/or detection point in the radar signals. Data representing samples corresponding to the patch of frequency bins may be transmitted to the processing unit and applied to one or more machine learning models in order to accurately classify, identify, and/or track objects.

Abstract: A DC-DC power supply and control method thereof are provided. The DC-DC power supply includes a transformer, a primary circuit, a secondary circuit and a controller. The transformer includes a primary winding and a secondary winding. The primary circuit is connected with the primary winding and includes a plurality of first primary switches, and a plurality of second primary switches. The secondary circuit is connected with the secondary winding. The controller is configured to alternately control the operation of the first primary switches and the second primary switches for periodically adjusting a turn-off loss difference therebetween.

Abstract: A DC-DC power supply and a transformer assembly are provided. The DC-DC power supply includes primary and secondary circuits and M transformer sets electrically connected in parallel between the primary and secondary circuits. Each transformer set includes N transformers, where M and N are positive integers. Each transformer includes first and second primary windings and first and second secondary windings. A connection node of the first and second secondary windings is electrically connected to an output capacitor of the secondary circuit, and each secondary winding is electrically connected to a corresponding secondary switch of the secondary circuit. The first and second primary windings in each transformer set are electrically connected in series. All transformers are arranged along a first direction, and each transformer includes columns arranged along the first direction with each extending along a second direction perpendicular to the first direction.

Abstract: In various examples, methods and systems are provided for sampling and transmitting the most useful information from a radar signal representing a scene while staying within the computational and storage confines of a standard automotive radar sensor and the bandwidth constraints of a standard communication link between a radar sensor and processing unit. Disclosed approaches may select a patch of frequency bins that correspond to radar signals based at least on proximities of the frequency bins to one or more frequency bins corresponding to at least one peak and/or detection point in the radar signals. Data representing samples corresponding to the patch of frequency bins may be transmitted to the processing unit and applied to one or more machine learning models in order to accurately classify, identify, and/or track objects.

Abstract: This application discloses a cluster load balancing method and apparatus. The method includes: obtaining, when congestion information reported by a target server in a target cluster is obtained, a congested port and server status information of the target cluster (201); determining an active connection passing through the congested port as a to-be-switched connection (202); determining, as a target switching path, a path of a candidate connection in a candidate connection list corresponding to an active connection list including the to-be-switched connection (203); and delivering the to-be-switched connection and the target switching path to a server corresponding to the to-be-switched connection, to enable the server corresponding to the to-be-switched connection to switch a path of the to-be-switched connection to the target switching path (204).

Abstract: The present invention provides a catalyst for synthesizing a cyclic carbonate and a preparation method and use thereof. A diamine compound X, a salicylaldehyde-containing compound and a metal source M are subjected to reaction, and then added with a phenothiazine compound Y for continuous reaction to obtain a phenothiazine metal Schiff base catalyst. The formation of phenothiazine free radicals by phenothiazine compounds with a central metal can protect the central metal in the course of reaction and inhibit inactivation caused by the self-polymerization of the central meta, thus improving the activity and stability of a catalyst. Phenothiazine compounds can be present as a polymerization inhibitor to inhibit the generation of by-products such as polycarbonates and polyethylene glycol and enhance the selectivity of the catalyst during the reaction. The phenothiazine compounds are alkaline and can adsorb and activate carbon dioxide during reaction, which helps to improve the reaction efficiency.

Abstract: The present invention provides a catalyst for synthesizing a cyclic carbonate and a preparation method and use thereof. A diamine compound X, a salicylaldehyde-containing compound and a metal source M are subjected to reaction, and then added with a phenothiazine compound Y for continuous reaction to obtain a phenothiazine metal Schiff base catalyst. The formation of phenothiazine free radicals by phenothiazine compounds with a central metal can protect the central metal in the course of reaction and inhibit inactivation caused by the self-polymerization of the central meta, thus improving the activity and stability of a catalyst. Phenothiazine compounds can be present as a polymerization inhibitor to inhibit the generation of by-products such as polycarbonates and polyethylene glycol and enhance the selectivity of the catalyst during the reaction. The phenothiazine compounds are alkaline and can adsorb and activate carbon dioxide during reaction, which helps to improve the reaction efficiency.

Abstract: A solid polycarboxylate superplasticizer, preparation method, and use. A monohydroxyl/monoamino polyoxyethylene ether or derivative thereof and unsaturated benzenesulfonic acid small monomer having the effects of crack resistance, shrinkage reduction and catalysis are added to a reactor at one time by a one-pot process, mixed and stirred, followed by vacuum dehydration under heating conditions or an esterification reaction under the introduction of a protective gas. After the reaction is completed and cooled, slicing or milling is performed to obtain the solid polycarboxylate superplasticizer. The superplasticizer has crack resistance and shrinkage reduction while ensuring initial dispersion performance. An organic solvent is not used, and a green environmental protection effect is achieved. The esterification rate is high, reaction conditions are mild, energy consumption is low, and operation steps are simple.

Abstract: A switching converter includes a voltage converting circuit, an output feedback circuit and a switch control circuit. The voltage converting circuit is configured to convert an input voltage into an output voltage. The output feedback circuit is coupled to receive the output voltage and configured to provide an output feedback signal. The switch control circuit is coupled to the output feedback circuit to receive the output feedback signal and configured to generate a switch control signal to control the voltage converting circuit. Where during a time period when a load is disconnected from the switching converter, in response to the output voltage decreasing to a first output threshold, the output feedback circuit is configured to be a cut off connection state.

Abstract: Provided herein are methods for treating liver disorders, including non-alcoholic steatohepatitis (NASH), and symptoms and manifestations thereof, in a patient comprising administration of the SSAO inhibitor: or a pharmaceutically acceptable salt thereof.

Abstract: The present invention provides a black phosphorus quantum dot modified polycarboxylic acid slump retaining agent as well as a preparation method therefor and an application thereof. By using a black phosphorus quantum dot (BPQDs-PEG-SH) with sulfydryl as a chain transfer agent to carry out a redox free radical polymerization reaction with an unsaturated polyether macromonomer and an unsaturated ester small monomer, the polycarboxylic acid slump retaining agent is grafted to a surface of the black phosphorus quantum dot (BPQDs). Compared with the prior art, the method of the present invention has the advantages that the number and length of branched chains are adjusted through the black phosphorus quantum dots with sulfydryl, the product performance is regulated and controlled, the reaction is rapid and highly efficient, no toxicity or pollution is caused, and the operation is simple.

Abstract: Power converters with integrated transformers and resonant inductors are described. An example integrated transformer can be electrically coupled between a primary-side converter stage and a secondary-side converter stage in a power converter. The integrated transformer can include a magnetic core with plurality of core legs, a primary winding extending around each of the plurality of core legs, and a secondary winding extending around each of the plurality of core legs. A winding direction of the primary winding is alternated between adjacent core legs among the plurality of core legs, and a winding direction of the secondary winding is alternated between adjacent core legs among the plurality of core legs. Additionally, a number of winding turns of the primary winding and a number of winding turns of the secondary winding on a first core leg is different than on a second core leg among the plurality of core legs.

Abstract: The present disclosure discloses a male massager with a telescopic rotating structure including a telescopic mechanism, a rotating mechanism, a telescopic rotating shaft, and a massage component. The telescopic mechanism independently drives the telescopic rotating shaft to extend and retract, allowing the massage component to perform an independent telescopic motion, thereby activating an independent telescopic motion mode; the rotating mechanism independently drives the telescopic rotating shaft to rotate, allowing the massage component to perform an independent rotational motion, thereby activating an independent rotational motion mode; the telescopic mechanism and the rotating mechanism respectively drive the telescopic rotating shaft to extend-and-retract and rotate, allowing the massage component to perform telescopic and rotational motions simultaneously, thereby activating a composite motion mode with telescopic and rotational motions.

Abstract: Power converters with integrated transformers and resonant inductors are described. An example power converter includes a primary-side converter stage, a number of secondary-side converter stages, and an integrated transformer and resonant inductor coupled between the primary-side and secondary-side converter stages. The integrated transformer includes a magnetic core having a first leg, an auxiliary leg, and a second leg. The integrated transformer also includes a first transformer having a first primary winding, a first secondary winding, and a first shield winding on the first leg, and a second transformer having a second primary winding, a second secondary winding, and a second shield winding on the second leg. The first shield winding is electrically coupled to provide an extension of the first primary winding for the first transformer, and an end of the first shield winding or the second shield winding is electrically coupled to a primary-side ground of the power converter.