Abstract: An antenna includes a first substrate and a second substrate oppositely arranged; the first substrate includes: a first dielectric substrate having a first surface and a second surface oppositely arranged; a reference electrode layer on the first surface; at least one first radiation part on the second surface and having an orthographic projection on the first dielectric substrate at least partially overlapping that of the reference electrode layer; and at least one feeding structure on the second surface, electrically connected to the first radiation part, and having an orthographic projection on the first dielectric substrate at least partially overlapping that of the reference electrode layer; the second substrate includes: a second dielectric substrate opposite to the second surface; and at least one second radiation part on the second dielectric substrate, and each having an orthographic projection on the first surface within that of one first radiation part.

Abstract: A multiphase converter provides an output voltage to a load. The multiphase converter receives a load event signal from the load and turns ON at a same time the phases of the multiphase converter to increase the output voltage in response to the load event signal indicating that a load current drawn by the load from the multiphase converter is about to increase. The multiphase converter increases an impedance of low-side switches of the multiphase converter in response to the load event signal indicating that the load current is about to decrease.

Abstract: Embodiments of the present application provide a laser light source and a laser projection device. The laser light source includes a laser assembly and a light combination mirror assembly. The laser assembly includes at least a laser, a light emitting surface of the laser has a plurality of light emitting regions, and beams emitted from different ones of the plurality of light emitting regions are in different colors. The light combination mirror assembly includes a plurality of mirrors that are sequentially arranged along an optical transmission path of the laser, with each of the mirrors corresponding to one of the light emitting regions. The light combination mirror assembly is used to converge the beams in different colors emitted from the laser to form a white beam.

Abstract: Systems and methods for identification and retrieval of content for visual search are provided. An example method includes receiving data specifying a digital supplement. The data may identify a digital supplement and a supplement anchor for associating the digital supplement with visual content. The method may also include generating a data structure instance that specifies the digital supplement and the supplement anchor and, after generating the data structure instance, enabling triggering of the digital supplement by an image based at least on storing the data structure instance in a database that includes a plurality of other data structure instances. The other data structure instances may each specify a digital supplement and one or more supplement anchors.

Abstract: A power module includes a first power module and a second power module arranged below the first power module. The first power module includes at least one input pad configured to receive an input voltage and at least one power pad configured to provide an intermediate voltage. The at least one input pad is mounted on a top surface of the first power module, and the at least one power pad is mounted on a bottom surface of the first power module. The second power module includes at least one signal pad configured to receive the intermediate voltage and at least one output pad configured to provide an output voltage. The at least one signal pad is mounted on a top surface of the second power module, and the at least one output pad is mounted on a bottom surface of the second power module.

Abstract: Nanofiltration membranes and methods of using and making thereof are disclosed. The nanofiltration membranes contain a silk layer, a porous substrate, and a selective layer. The silk layer is an interlayer sandwiched between the porous substrate and selective layer. The nanofiltration membranes have high performance for filtering water, such as improved water permeance and/or high ion removal rate. For example, the nanofiltration show a water permeance that is at least 2-fold, such as about 5-fold, of the water permeance of a commercially available nanofiltration membrane, such as DuPont FilmTec™ NF270 and/or DuPont FilmTec™ NF90, and an ion rejection of at least 70% against a target ion, such as a divalent or multivalent ion. The greatly improved water permeance of the nanofiltration membranes can result in up to a magnitude lower energy consumption in water filtration applications.

Abstract: A method includes: obtaining video data; receiving a target object; processing the video data to obtain one or more first images of the video data that contain an image of the target object and one or more second images of the video data that do not contain the image of the target object; discarding the one or more second images from the video data; generating a background image based on the one or more second images; synthesizing the one or more first images of the video data with the background image to generate one or more synthesized images; obtaining a target image sequence with the one or more synthesized images based on a time order of the one or more first images in the video data; and displaying each of the one or more synthesized images in the target image sequence in a fade-in and fade-out manner.

Abstract: An electronic apparatus includes: a first body including a first side and a second side arranged opposite to each other, and including a first input/output device disposed at the first side; a second body including a third side and a fourth side arranged opposite to each other, and including a second input/output device disposed at the third side; and a connector disposed at the first side and the fourth side. The second body rotates relative to the first body through the connector. During rotation of the second body, orientations of the first side and the third side substantially satisfy a same condition. The electronic apparatus includes a first attitude and a second attitude, which are switchable through the rotation of the second body. The second body does not block the first input/output device when the electronic apparatus is in the first attitude and the second attitude.

Abstract: A multiphase converter provides an output voltage to a load. The multiphase converter receives a load event signal from the load and turns ON at a same time the phases of the multiphase converter to increase the output voltage in response to the load event signal indicating that a load current drawn by the load from the multiphase converter is about to increase. The multiphase converter increases an impedance of low-side switches of the multiphase converter in response to the load event signal indicating that the load current is about to decrease.

Abstract: A method of preparing epoxypropane by direct epoxidation of propylene includes the steps of contacting a mixed gas consisting of a reaction feed gas and a diluent gas with a catalyst to carry out reaction under reaction conditions of propylene epoxidation to prepare epoxypropane. The reaction feed gas contains propylene, oxygen gas and hydrogen gas while at least a portion of the diluent gas is a gaseous olefin. Using gaseous olefin as at least a portion of the diluent gas to perform propylene epoxidation that can significantly extend service life of the catalyst, effectively reduce the used amount of diluent gas, and improve the reaction selectivity and propylene conversion rate.

Abstract: A method and system for preparing epoxypropane by direct epoxidation of propylene includes the steps of subjecting a mixed gas of a first feed gas and a second feed gas to a contact reaction with a catalyst under reaction conditions of propylene epoxidation to prepare epoxypropane. The first feed gas contains oxygen gas and is free or substantially free of hydrogen gas. The second feed gas contains hydrogen gas and is free or substantially free of oxygen gas. The first feed gas and/or the second feed gas contain propylene, at least one of the first feed gas and the second feed gas further contains a diluent gas. The method can be used for reducing dosage of diluent gas, preferably recycling the tail gas, thereby significantly increasing the conversion rate of propylene without compromising the service life of catalyst.

Abstract: Techniques for data processing involve creating a source group including a first storage system and a target group including a plurality of storage systems. Such techniques further involve selecting a second storage system from the plurality of storage systems in the target group based on the performance of the plurality of storage systems in the target group. Such techniques further involve copying data in the first storage system to the second storage system. Accordingly, automatic data migration can be achieved, thus improving the security of data and the availability of storage systems.

Abstract: Systems and methods for identification and retrieval of content for visual search are provided. An example method includes receiving data specifying a digital supplement. The data may identify a digital supplement and a supplement anchor for associating the digital supplement with visual content. The method may also include generating a data structure instance that specifies the digital supplement and the supplement anchor and, after generating the data structure instance, enabling triggering of the digital supplement by an image based at least on storing the data structure instance in a database that includes a plurality of other data structure instances. The other data structure instances may each specify a digital supplement and one or more supplement anchors.

Abstract: Provided is a data labeling method based on artificial intelligence, an apparatus, and a storage medium relating to the field of artificial intelligence, particularly data labeling, image recognition, and natural language processing. The method includes: determining a plurality of samples involved in clustering; performing a plurality of following operations circularly to realize iterative processing, until a convergence condition is satisfied or a quantity of iterations reaches a number threshold, comprising: pre-clustering the plurality of samples according to a vector representation of the respective samples to obtain a plurality of class clusters, each class cluster containing at least one sample; receiving labeling information for the respective class clusters and re-determining the plurality of samples according to the labeling information; and determining a clustering result according to the labeling information for the respective class clusters.

Abstract: A flexible screen display device includes: a hollow housing having an opening; a receiving shaft fixed inside the housing; a first guiding shaft fixed inside the housing; a second guiding shaft fixed inside the housing; a flexible screen, one end of which is connected to the receiving shaft, and the other end of which sticks out of the opening via the first guiding shaft and the second guiding shaft to deploy or receive the flexible screen. The first guiding shaft is close to the receiving shaft with respect to the second guiding shaft, and the flexible screen forms a one-time guided bending section via the first guiding shaft and the second guiding shaft.

Abstract: The flexible display module can be curled, and may comprise: a flexible display panel having a display side and a rear side which are provided opposite to each other in a thickness direction of the flexible display panel; a first functional film layer, formed on a display side of the flexible display panel; and a second functional film layer, formed on the rear side of the flexible display panel. The ratio of the thickness of the second functional film layer to the thickness of the first functional film layer is 0.5 to 1.5, and the ratio of the elasticity modulus of the second functional film layer to the elasticity modulus of the first functional film layer is 0.5 to 1.5. The flexible display module is not prone to peeling, losing efficacy and the like.

Abstract: Systems and methods for identification and retrieval of content for visual search are provided. An example method includes receiving data specifying a digital supplement. The data may identify a digital supplement and a supplement anchor for associating the digital supplement with visual content. The method may also include generating a data structure instance that specifies the digital supplement and the supplement anchor and, after generating the data structure instance, enabling triggering of the digital supplement by an image based at least on storing the data structure instance in a database that includes a plurality of other data structure instances. The other data structure instances may each specify a digital supplement and one or more supplement anchors.

Abstract: A gas sensor has a sensing structure that is used for generating, for a variety of gases, multiple corresponding electric signals. It has a plurality of measuring electrodes and a gas-sensitive film coating the measuring electrodes; and a micro-heating structure that is used for providing different heating temperatures for the sensing structure, and a silicon-based substrate and a heating layer disposed on the silicon-based substrate. The heating layer integrates heating electrodes of different sizes or different layouts to form a plurality of heating regions of different temperatures, and the plurality of measuring electrodes are respectively disposed in the corresponding heating regions. By integrating heating electrodes of different sizes or different layouts on a single micro-heating structure to form heating regions of different temperatures, a complex atmosphere detection function of a variety of sensing materials at different temperatures is achieved.