Abstract: The present invention provides a coaxial speaker including a frame, a magnetic circuit system, a first vibration system and a second vibration system fixed on different sides of the magnetic circuit system. The first vibration system locates communicated with the second vibration system. The first vibration system includes a first diaphragm and a first voice coil. The second vibration system includes a second diaphragm and a second voice coil. The magnetic circuit system includes a first magnetic gap and a second magnetic gap. The first voice coil partially locates into the first magnetic gap, the second voice coil partially locates into the second magnetic gap. The first diaphragm is used for generating bass sound, the second diaphragm is used for generating treble sound. A sound hole is provided on the first diaphragm for emitting the treble sound. Bass sound and treble sound form a full-range speaker, which providing high-quality sound.

Abstract: The present invention provides a coaxial speaker including a frame, a magnetic circuit system, a first vibration system fixed on an inner side of the frame, and a second vibration system fixed on an outer side of the frame. The first vibration system locates coaxially with the second vibration system. The first vibration system includes a first diaphragm and a first voice coil. The second vibration system includes a second diaphragm and a second voice coil. The magnetic circuit system includes a first magnetic gap and a second magnetic gap. The first voice coil at least partially locates into the first magnetic gap, the second voice coil at least partially locates into the second magnetic gap. The first diaphragm is used for generating treble sound, and the second diaphragm is used for generating bass sound. Bass sound and treble sound form a full-range speaker, providing high-quality sound.

Abstract: In an approach, a processor performs document layout analysis on a document generating a plurality of textual regions; extracts characteristics from each of the plurality of textual regions and associates the respective characteristics to the respective textual region as metadata; classifies each of the plurality of textual regions as an optical character recognition (OCR) region, non-OCR valuable region, or non-OCR non-valuable region using a classifier; performs OCR on each OCR region generating an OCR output; identifies associated constant OCR data from a constant OCR data repository for each non-OCR valuable region; merges the associated constant OCR data with the OCR output generating a complete OCR data for the received document; performs data extraction on the complete OCR data to identify data fields and key-value pairs generating extracted data; and determines whether the extracted data is valid based on a set of rules.

Abstract: A coaxial speaker box includes a housing, a speaker unit, and a sound guide channel for guiding sound outside. The speaker unit includes a frame, a magnetic circuit system, a first vibration system, and a second vibration system. The first vibration system is disposed in the frame. The second vibration system is disposed on an outer side of the frame. A front cavity is formed among the first vibration system, the second vibration system, and the housing. The first vibration system includes a first vibrating diaphragm and a first voice coil. A coaxial full-band speaker is formed by the bass and the high pitch of the coaxial speaker box to provide high-quality sound effects. The high pitch and the bass share a side sound guide channel, and form a front cavity resonance in a bass channel to improve high-frequency sound effects.

Abstract: An automatic and rapid detection method of a gradation for an asphalt mixture and an automatic device are provided. The method includes: asphalt mixture introduction; asphalt mixture dehydration, including: heating the asphalt mixture and dehydrating to a target dehydration rate; asphalt combustion, including: burning the asphalt mixture by using a combustion method to form smoke to be removed, thereby obtaining aggregates, and obtaining an asphalt content; aggregate screening, including: grading through screening the aggregates according to different particle sizes by using a vibration screening device, and then weighing the aggregates, thereby obtaining weights of the aggregates; and obtaining the gradation, including: calculating the gradation for the asphalt mixture according to the weights of the aggregates with the different particle sizes and the asphalt content.

Abstract: A method for implementing an adaptive colour transform (ACT) mode during image/video encoding and decoding includes performing a conversion between a current video block of a video and a bitstream of the video, wherein the current video block is coded using the ACT mode, wherein the conversion includes applying an inverse ACT transform on the current video block according to a rule, and wherein the rule specifies that a clipping operation, based on a bit depth of the current video block, is applied to an input of the inverse ACT transform.

Abstract: Embodiments are provided for suggesting topics in a messaging system. A set of queries is received from a chat transcript history, where the set of queries includes a set of unhandled queries, and each unhandled query comprises a query for which a bot did not identify a corresponding topic (e.g., queries that did not trigger selection of a topic by the bot). A vector representation is generated for each unhandled query in the set of unhandled queries. The vector representations for the set of unhandled queries are clustered to generate one or more clusters of vector representations, each cluster corresponding to a group of unhandled queries. A corresponding suggested topic is generated for each cluster and provided to an authoring tool that comprises one or more interactive elements to enable an author to select at least one of the suggested topics for implementation in the bot.

Abstract: A dynamic interface layout method includes that a width of a screen of an electronic device is divided into a plurality of columns. The electronic device displays a first interface on the screen. After detecting an interface refresh signal, the electronic device obtains a first column quantity corresponding to a width of a second interface to be displayed after refreshing. The first column quantity is a quantity of columns included in the width of the second interface. The electronic device determines a second column quantity according to a layout rule corresponding to a first element on the second interface. The second column quantity is a quantity of columns included in a width of the first element. The electronic device displays the second interface on the screen.

Abstract: A system and method for dynamically visualize and modify user authority and security resource edge based on access behaviors in a cloud computing environment. The method provides a new access control perspective to ensure the credibility of database object usage patterns, build clearer and explicit security data consumption mode for data usage requests, and guide tenants to have a more comprehensive understanding and concise use. Processing components and method are configured to gather data and analytics including collecting data resource and database object usage tagging both resources and users with security level by machine learning and building an access model for each role. The method uses graph modeling with created, trained access patterns for users protected resources and produces in-memory implicit sub-groups for users with similar access requirements and limits their resource accesses according to their history behaviors.

Abstract: The present disclosure generally relates to engaging in cross device interactions. The method includes at a first device with a first display, while a second device having a second display is placed over a first region of the first display, detecting, via input devices of the first device, a first input. In response to detecting the first input and in accordance with a determination that the first input occurred while focus was directed to the second device, the method includes causing a response to the first input to be displayed on the second display. In response to detecting the first input and in accordance with a determination that the first input occurred while focus was directed to the first device, the method includes displaying, on the first display, a response to the first input without causing a response to the first input to be displayed on the second display.

Abstract: Disclosed are an isolation method for a high-performance computer system, and a high-performance computer system. The isolation method comprises node-level isolation performed. The node-level isolation comprises: configuring a routing table for each computing node, and configuring, in the routing table, valid routing information for computing node pairs; when any one source computing node needs to communicate with a target computing node, determining, by lookup, whether valid routing information exists between the source computing node and the target computing node according to the configured routing table; if so, allowing the source computing node to communicate with the target computing node; otherwise, forbidding the source computing node from communicating with the target computing node.

Abstract: The invention provides an automatic stirring device in the field of fluid machinery and bioreactors, focusing on enhancing fluid control efficiency and consistency in biological cultivation processes. It utilizes a flexible channel body or reactor body to facilitate the flow of nutrient solution along specific channels (such as S-shaped flexible channels or S-shaped loop channels), designed to reduce shear forces and achieve iso-level uniform flow. A power system and monitoring and control system are employed to regulate the flow of nutrient solution and monitor cultivation conditions in real-time, thus supporting various bioprocess cultivation requirements.

Abstract: Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding, or video transcoding. One example method of video processing includes performing a conversion between a video and a bitstream of the video according to a format rule. The format rule specifies that a first field at a sequence level or a picture level or a slice level controls a value of a second field in an adaptation parameter set.

Abstract: A system, multifunctional chip, and fabrication method thereof are provided. For example, a method for use in fabricating an opto-electromechanical system includes generating, from a film of a material and a substrate on which the film is disposed, a suspended portion of the film by removing a first portion of the substrate such that the film's first portion becomes the suspended portion and a second portion of the film is adjacent to a second portion of the substrate after removing the substrate's first portion. A two-dimensional nanomaterial is thereafter transferred onto a section of the suspended portion of the film via an all-dry process. A cantilever is thereafter generated from the film's suspended portion and extends from the film's second portion. The two-dimensional nanomaterial is disposed on the cantilever. Other aspects and features are also claimed and described.

Abstract: Fabrication methods are provided for transforming two-dimensional films into three-dimensional structures based on rolling-up kirigami techniques. In an example, a method includes forming a first layer of a first material on a portion of a substrate, forming a second layer of a second material on the first layer and a second portion of the substrate, and forming a third layer of a third material on a first portion of the second layer. A pattern is formed into the third layer when forming the third layer. The example method further includes transforming at least a portion of the third layer into a three-dimensional structure based in part on removing a second portion of the second layer and at least a portion of the first layer.

Abstract: A semiconductor package comprises a lead frame, a chip, and a molding encapsulation. The lead frame comprises a top plate, a plurality of drain pads, a plurality of slanted sections, a gate pad, and a plurality of source pads. The top plate of the lead frame comprises a thicker region and a thinner region. Each slanted section of the plurality of slanted sections connects a respective drain pad of the plurality of drain pads to the top plate. A respective side surface of each drain pad of the plurality of drain pads is exposed from a side surface of the molding encapsulation. A respective bottom surface of each drain pad of the plurality of drain pads is exposed from a bottom surface of the molding encapsulation. A top surface of the thicker region is exposed from a top surface of the molding encapsulation.

Abstract: The present embodiments relate to a tunnel magnetoresistance (TMR) element. The TMR element can include a free layer comprising a metallic alloy that is doped using a dopant element. In some instances, the metallic alloy comprises a cobalt-iron (CoFe) alloy. The present embodiments relate to doping a small amount of an element (e.g., hafnium (Hf), tantalum (Ta), Yttrium (Y)) in a high flux CoFe layer of a tunnel magnetoresistance (TMR) element. The small amount of dopant can suppress a long-range order in the CoFe film. The amorphous state of a CoFe alloy can be induced by the dopant and result in a magnetically soft layer. A resistance of the TMR element can be modified based on an application of an external magnetic field to the free layer and the pin layer.

Abstract: A slide rail assembly includes a first rail with a positioning structure, a second rail displaceable relative to the first rail and providing a concave surface on the back to face the positioning structure, a first stopper pivotally connected to the concave surface corresponding to the first side of the positioning structure, and an operating member movably connected to the second rail and placed on the concave surface so that the operating member is on the side of the first stopper. The slide rail assembly can be installed on the side of the carrier, which can be a server case or drawer, or can be used on servers or furniture.

Abstract: Embodiments of the present disclosure perform training attribution by identifying a synthesized image and a training image, where the synthesized image was generated by an image generation model that was trained with the training image. A machine learning model computes first attribution features for the synthesized image using a first mapping layer and second attribution features for the training image using a second mapping layer that is different from the first mapping layer. Then, an attribution score is generated based on the first attribution features and the second attribution features, where the attribution score indicates a degree of influence for the training image on generating the synthesized image.

Abstract: A culture medium for culturing mammary epithelial cells, which medium contains ?-estradiol, insulin-like growth factor 1, basic fibroblast growth factor, tumor necrosis factor-?, and optionally fibroblast growth factor 10. A method for culturing mammary epithelial cells using the culture medium, and a method and the use of cells obtained using the culture method in evaluating or screening the efficacy of a drug.