Abstract: Implementations of the present specification discloses methods, apparatuses, and devices for short-range wireless communication for payment assistance. A corresponding computer-implemented method includes: obtaining, by a user device, a merchant account identifier sent by a merchant device through short-range wireless communication; generating verification information; sending the verification information and the merchant account identifier to a server; obtaining received verification information sent by the merchant device through the short-range wireless communication, wherein the received verification information comprises the verification information obtained by the server from the user device and sent from the server to the merchant device; verifying the received verification information; responsive to verifying the received verification information, determining that a merchant account corresponding to the merchant account identifier is valid; and initiating a transaction with the merchant account.

Abstract: The present application discloses resource selection and resource transfer methods and apparatuses, and automatic vending methods and systems. The method includes the following: obtaining, by a mobile device placed within a predetermined range of a resource management terminal, data comprising changes in magnetic field intensity of the resource management terminal; determining, by the mobile device and based on the data comprising changes in the magnetic field intensity, a first target channel from a plurality of channels in a rack of the resource management terminal; and sending, by the mobile device and to the resource management terminal, a target resource selection instruction, wherein the target resource selection instruction comprises information that specifies the first target channel.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for broadcasting audio. In one aspect, the method includes receiving, from a server by a smart broadcasting device associated with a service client, an audio broadcast instruction; in response to receiving the audio broadcast instruction, downloading an audio file corresponding to the audio broadcast instruction, wherein the audio file comprises a marketing content related to services provided by the server to the service client associated with the smart broadcasting device; and broadcasting, by the smart broadcasting device, the audio file by using a speaker of the smart broadcasting device.

Abstract: A switch bootstrap charging circuit suitable for a gate drive circuit of a GaN power device includes a high-voltage MOSFET, a low-voltage MOSFET, a high-voltage MOSFET control module, and a low-voltage MOSFET control module. The low-voltage MOSFET is a PMOS transistor, and the source of the low-voltage MOSFET is connected to the power supply voltage. The drain of the high-voltage MOSFET serves as an output terminal of the switch bootstrap charging circuit. The low-voltage MOSFET control module and the high-voltage MOSFET control module generate a gate drive signal of the low-voltage MOSFET and a gate drive signal of the high-voltage MOSFET according to the gate drive signal of the lower power transistor.

Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device associated with a social networking application. While running a social networking application, the first computing device detects a near-field wireless communication signal broadcasted by a second computing device associated with a service provider account registered with the social networking application.

Abstract: A switch bootstrap charging circuit suitable for a gate drive circuit of a GaN power device includes a high-voltage MOSFET, a low-voltage MOSFET, a high-voltage MOSFET control module, and a low-voltage MOSFET control module. The low-voltage MOSFET is a PMOS transistor, and the source of the low-voltage MOSFET is connected to the power supply voltage. The drain of the high-voltage MOSFET serves as an output terminal of the switch bootstrap charging circuit. The low-voltage MOSFET control module and the high-voltage MOSFET control module generate a gate drive signal of the low-voltage MOSFET and a gate drive signal of the high-voltage MOSFET according to the gate drive signal of the lower power transistor.

Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device associated with a social networking application. While running a social networking application, the first computing device detects a near-field wireless communication signal broadcasted by a second computing device associated with a service provider account registered with the social networking application.

Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device. While running a social networking application, the first computing device listens to a near-field wireless communication signal broadcasted by a second computing device. After detecting the near-field wireless communication signal broadcasted by the second computing device, first computing device processes the near-field wireless communication signal to obtain identification information associated with the second computing device. The first computing device sends the identification information associated with the second computing device to a remote server supporting the social networking application and obtains a preset service page corresponding to the identification information associated with the second computing device from the server, and displays the preset service page within the social networking application on the first computing device.

Abstract: A hot beverage maker is provided with a removable pump for cleaning a brewing needle. The pump fits into a brewing chamber which normally receives a pod of an infusible beverage material. A pod receptacle and a lid pivotally connected to the housing form the brewing chamber. After a brewing cycle or when cleaning of the brewing needle is desired, an interior chamber of the pump is filled with cleaning fluid and the pump inserted into the pod receptacle. When the lid is closed, the brewing needle is inserted into the interior chamber. The lid is closed and released repeatedly to operate the pump. This creates a pumping action of the cleaning fluid through the brewing needle to dislodge a buildup of minerals or residual deposits. The used cleaning fluid and dislodged deposits are discarded after the cleaning operation is completed.

Abstract: A transaction displaying method includes obtaining data associated with a transaction from a server, where the data includes data associated with one or more displaying groups and data associated with one or more displaying objects in each of the displaying groups. The method further includes, subsequent to the obtaining the data, detecting that the transaction is triggered, selecting, responsive to the detecting, a displaying group from the data, selecting a displaying object in the selected displaying group for display, and displaying the selected displaying object.

Abstract: An oxygen evolution reaction (OER) electrocatalyst for acidic media comprises a metal oxide structure comprising a pyrochlore phase of chemical formula A2B2On, wherein A comprises one or more A-site metals, B comprises one or more B-site metals, and 6.0?n?7.3. The metal oxide structure exhibits a mass current density of at least about 20 A/g at an over-potential of 0.22 V in 0.1 M HClO4. According to another embodiment, an electrocatalyst for acidic media comprises a porous metal oxide structure having particulate walls separating a plurality of pores, where each particulate wall comprises interconnected primary particles. The porous metal oxide structure comprises a pyrochlore phase of chemical formula A2B2On, wherein A comprises one or more A-site metals, B comprises one or more B-site metals, and 6.0?n?7.3.

Abstract: Systems and devices including an imaging sensor to capture video sequences in an environment having safety concerns therein. The systems and devices further including a processor to generate driving series based on observations from the video sequences, and generate predictions of future events based on the observations using a dual-stage attention-based recurrent neural network (DA-RNN). The DA-RNN includes an input attention mechanism to extract relevant driving series, an encoder to encode the extracted relevant driving series into hidden states, a temporal attention mechanism to extract relevant hidden states, and a decoder to decode the relevant hidden states. The processor further generates a signal for initiating an action to machines to mitigate harm to items.

Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device. While running a social networking application, the first computing device listens to a near-field wireless communication signal broadcasted by a second computing device. After detecting the near-field wireless communication signal broadcasted by the second computing device, first computing device processes the near-field wireless communication signal to obtain identification information associated with the second computing device. The first computing device sends the identification information associated with the second computing device to a remote server supporting the social networking application and obtains a preset service page corresponding to the identification information associated with the second computing device from the server, and displays the preset service page within the social networking application on the first computing device.

Abstract: Broadband metamaterial apparatus, methods, systems, and computer readable media are disclosed, as well as exemplary embodiments that provide cloaking, beam steering, and beam focusing. In one exemplary implementation, a broadband interface structure has a front surface region and a back surface region. The broadband interface structure is arranged to provide electromagnetic energy characteristic of an apparent profile of the back surface region substantially different than an actual profile of the back surface region for electromagnetic energy received at the front surface region.

Abstract: Systems and devices including an imaging sensor to capture video sequences in an environment having safety concerns therein. The systems and devices further including a processor to generate driving series based on observations from the video sequences, and generate predictions of future events based on the observations using a dual-stage attention-based recurrent neural network (DA-RNN). The DA-RNN includes an input attention mechanism to extract relevant driving series, an encoder to encode the extracted relevant driving series into hidden states, a temporal attention mechanism to extract relevant hidden states, and a decoder to decode the relevant hidden states. The processor further generates a signal for initiating an action to machines to mitigate harm to items.

Abstract: Systems and methods for time series prediction are described. The systems and methods include encoding driving series into encoded hidden states, the encoding including adaptively prioritizing driving series at each timestamp using input attention, the driving series including data sequences collected from sensors. The systems and methods further includes decoding the encoded hidden states to generate a predicting model, the decoding including adaptively prioritizing encoded hidden states using temporal attention. The systems and methods further include generating predictions of future events using the predicting model based on the data sequences. The systems and methods further include generating signals for initiating an action to devices based on the predictions.

Abstract: A housing includes a base. Sections of a portion of the base defines a plurality of gaps. The base is spaced by the gaps and forms a plurality of metal sheets and the at least one main portion. The gaps are entirely filled with a plurality of spacers. The plurality of spacers is made of resin composition. The metal sheets and the at least one main portion are fixed together by the spacers and are electrically isolated with each other.

Abstract: A method of making a housing includes: providing a preliminary housing; forming a plurality of through gaps on the sections of a portion of the preliminary housing by laser cutting technology, remaining sections of the preliminary housing are spaced by the through gaps and form a plurality of metal sheets and the at least one main portion, the metal sheets and the main portion are spaced from each other by the gaps; and forming a plurality of spacers by filling liquid resin composition into the through gaps existing between the at least one main portion and the adjacent metal sheets, and the through gaps between the two adjacent metal sheets, the spacers, the metal sheets, and the main portion constitute a base.

Abstract: An antenna structure includes a first carrier, a second carrier and an antenna main body. The antenna main body includes a main antenna and a sub antenna. The main antenna is printed on the first carrier, the sub antenna is printed on the second carrier. The present invention also provides a wireless communication device using the antenna structure.

Abstract: An oxygen evolution reaction (OER) electrocatalyst for acidic media comprises a metal oxide structure comprising a pyrochlore phase of chemical formula A2B2On, wherein A comprises one or more A-site metals, B comprises one or more B-site metals, and 6.0?n?7.3. The metal oxide structure exhibits a mass current density of at least about 20 A/g at an over-potential of 0.22 V in 0.1 M HClO4. According to another embodiment, an electrocatalyst for acidic media comprises a porous metal oxide structure having particulate walls separating a plurality of pores, where each particulate wall comprises interconnected primary particles. The porous metal oxide structure comprises a pyrochlore phase of chemical formula A2B2On, wherein A comprises one or more A-site metals, B comprises one or more B-site metals, and 6.0?n?7.3.