Abstract: A method and apparatus for watermark extraction, a computer device and a storage medium are provided. The method includes: acquiring an image to be detected; inputting the image to be detected into a watermark recognition network and acquiring a watermark detection result corresponding to the image to be detected; and when the watermark detection result includes presence of a hidden watermark, extracting the hidden watermark in the image to be detected based on at least one extraction algorithm corresponding to the watermark detection result.

Abstract: Drug delivery articles, resident articles, and retrieval systems e.g., for gram-level dosing, are generally provided. In some embodiments, the residence articles are configured for transesophageal administration, transesophageal retrieval, and/or gastric retention to/in a subject. In certain embodiments, the residence article includes dimensions configured for transesophageal administration with a gastric resident system. In some cases, the residence article may be configured to control drug release e.g., with zero-order drug kinetics with no potential for burst release for weeks to months. In some embodiments, the residence articles described herein comprise biocompatible materials and/or are safe for gastric retention. In certain embodiments, the residence article includes dimensions configured for transesophageal retrieval. In some cases, the residence articles described herein may comprise relatively large doses of drug (e.g., greater than or equal to 1 gram).

Abstract: An anti-TSLP nanobody and a use thereof are provided. A coding sequence encoding the anti-TSLP nanobody, corresponding expression vector and host cell capable of expressing the nanobody, and a method for producing the anti-TSLP nanobody are also provided. The anti-TSLP nanobody has a good TSLP/TSLPR blocking activity and is expressed using pichia pastoris. Its fermenter expression yield can reach 17-23 g/L.

Abstract: The present disclosure provides compositions, methods, and kits that enable the in situ growth of polymers on or within a subject. In some aspects, the monomer, dopamine, polymerizes in vivo to form a polymer on a tissue. In additional aspects, the compositions, methods, and kits are useful for treating or preventing a disease or disorder.

Abstract: The present disclosure provides a frequency generator, and belongs to the technical field of communications. The frequency generator provided by the present disclosure includes: N stages of mixing modules and N stages of comb spectrum generation modules. Each of the comb spectrum generation modules is configured to provide a mixing module in a same stage as the comb spectrum generation modules with one stage of fundamental signal group generated according to a second reference signal; and different stages of fundamental signal groups are generated based on different second reference signals. A 1st-stage mixing module generates a 1st-stage mixed signal according to a 1st-stage fundamental signal group and a first reference signal, and the 1st-stage fundamental signal group includes a plurality of harmonic signals with a first frequency as a fundamental frequency.

Abstract: An antibacterial polycarbonate composite includes the following components in parts by weight: 100 parts of a polycarbonate, 0.01-5 parts of a nanometer metal oxide, and 0.01-5 parts of a silicon-containing high-molecular polymer; and based on a total weight of the antibacterial polycarbonate composite, a content of a silver ion is 100-1200 ppm.

Abstract: This invention presents a function allocation system for an autonomous vehicle (AV). During the operations of the AV, some or all of its automated driving capabilities or functions could be downgraded due to long-tail events or malfunctioning. The roadside intelligent infrastructure, or the cloud platform, could supplement some or all of AV's automated driving functions, including sensing, prediction and decision-making, and/or control functions. The function allocation system dynamically allocates these functions between AV and intelligent infrastructure, achieving a higher system intelligence level S than the downgraded vehicle intelligence level V. In addition, a function allocation system could dynamically allocate sensing, prediction and decision-making, and/or control functions between AV and a cloud platform. This invention also presents a function integration system or a fusion system for an AV.

Abstract: Occlusion devices are disclosed herein. According to some embodiments, the present technology includes a mesh configured to be positioned within an aneurysm cavity, the mesh having a low-profile configuration for delivery through a catheter to the aneurysm cavity and an expanded configuration for implantation in the aneurysm cavity. The mesh can comprise a first portion configured to be positioned over the aneurysm neck and a second portion configured to be positioned between the first portion and a dome of the aneurysm. The mesh can comprise a copper material at the second portion of the mesh, wherein the copper material is configured to promote thrombosis within the aneurysm cavity.

Abstract: The disclosure provides a phase shifter, a manufacturing method thereof and an antenna, and belongs to the field of communication technology. The phase shifter includes a first substrate; a signal line and reference lines on the first substrate; a first insulating layer on the signal line; a plurality of electrode film bridges on a side of the first insulating layer distal to the signal line; and a first transmission structure on the first insulating layer and electrically connected to the signal line; and an orthographic projection of the first transmission structure on the first substrate is not overlapped with an orthographic projection of the plurality of electrode film bridges on the first substrate.

Abstract: The present invention discloses a recombinant RBD trimer protein capable of simultaneously generating cross neutralization activity for various severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic strains. The RBD trimer protein is taken as an antigen and supplemented with an adjuvant to immunize an organism, so that a high-titer neutralizing antibody aiming at various SARS-CoV-2 epidemic strains can be generated at the same time, and the antibody has a certain broad-spectrum property and can be used for treating and/or preventing SARS-CoV-2 infection and/or coronavirus disease 2019.

Abstract: The invention provides an autonomous vehicle (AV) system with an artificial intelligence (AI) system for automated vehicle control and traffic operations. This AI system comprises a computation component configured to provide sensing, behavior prediction and management, decision making, and vehicle control for the vehicle. This AI system is configured to receive local knowledge, information, data, and models from a roadside unit (RSU) or a cloud to improve performance and efficiency of the vehicle. The AI system is configured to train models with heuristic parameters obtained from a local traffic control center/traffic control unit (TCC/TCU) or the cloud to provide an improved model. The AI system is configured to provide intelligence coordination to distribute intelligence among vehicles, RSUs and cloud. The system also provides localized self-evolving artificial intelligence.

Abstract: There is a provided a pointing device, for example a remote pen which includes a multimode switch or button for transitioning the pointing device between three or more modes of operation. The mode of operation can include a first mode, an annotation mode and an air mouse mode. The remote point device further includes an inertial measurement unit configured for determination orientation information associated with the pointing device, which provides a means for determination of changes in x and y with respect to a cursor associated with a screen of a display device being controlled by the pointing device. The pointing device is further configured to provide different control/display (C/D) gains depending on the action being performed by the pointing device.

Abstract: A calibration system and a calibration method for a phased-array antenna are provided. The calibration system includes a receiving probe, a parameter tester, an upper computer and a beam controller. The receiving probe may acquire a beam signal, which is radiated by a to-be-tested phased-array antenna according to a provided microwave signal, at a preset position. The parameter tester may generate a test parameter according to the microwave signal and the beam signal. The upper computer may determine whether the to-be-tested phased-array antenna meets a preset index according to the test parameter, and in a case where the to-be-tested phased-array antenna does not meet the preset index, calculate the test parameter according to a genetic algorithm to generate optimized beam control data. The beam controller may generate a control voltage according to the optimized beam control data, and transmit the control voltage to the to-be-tested phased-array antenna.

Abstract: Disclosed are a display panel, a display device and a driving method. The display panel includes a plurality of sub-pixel units located in areas formed by the plurality of scanning signal lines and the plurality of data signal lines, and at least two adjacent sub-pixel units in the first direction and the second direction constitute a pixel island. A plurality of control units each corresponding to a sub-pixel unit row in the pixel island are provided. The control unit includes a control terminal, an input terminal and an output terminal. The control unit is configured to transmit a signal from the input terminal to the output terminal under control of a first signal transmitted by a control signal line corresponding to the control unit, and stop transmitting the signal from the input terminal to the output terminal under control of a second signal transmitted by the control signal line.

Abstract: In accordance with some embodiments, a light detection and ranging (LiDAR) system comprises: a control system housing; a first LiDAR head housing separate and distinct from the control system housing; a light source within the control system housing, the light source configured to produce a first pulse signal; a light detector within the control system housing configured to detect a first return pulse signal associated with the pulse signal; a first pulse steering system within the first LiDAR head housing, the first pulse steering system configured to direct the first pulse signal in a first direction; a first fiber configured to carry the first pulse signal from the light source to the first pulse steering system; and a second fiber configured to carry a first returned pulse signal from the first LiDAR head housing to the light detector.

Abstract: A system for light ranging and detection (LiDAR) is disclosed herein. The system comprises a laser transmitter transmitting one or more channels of light pulses. A rotating polygon mirror having a plurality of reflective facets directs the one or more channels of light pulses from the laser transmitter through a transmission region at a top surface of the system toward an external field of view and receives reflected light from the external field of view illuminated by the one or more channels of light pulses. A receiver detects the reflected light from channels corresponding to the one or more channels of light pulses. The laser transmitter, the rotating polygon mirror, and the receiver are substantially coplanar on a plane parallel to the top surface.

Abstract: Embodiments discussed herein refer to a relatively compact and energy efficient LiDAR system that uses a multi-plane mirror in its scanning system.

Abstract: This application relates to the communications field, and provides a transmission mode determining method and an apparatus, to better select a transmission mode and/or a transmission parameter of data autonomously. The transmission mode determining method includes: A first device measures a first resource set based on first information, to obtain a first measurement value, where the first information includes at least one of the following information: a subcarrier spacing of the first resource set, a quality of service parameter of first data, and feedback information between the first device and a second device, and the first resource set is to be used to transmit the first data. The first device determines a transmission mode of the first data based on the first measurement value, and/or determines a transmission parameter of the first data based on the first measurement value.

Abstract: A compact LiDAR device is provided. The compact LiDAR device includes a first mirror disposed to receive one or more light beams and a polygon mirror optically coupled to the first mirror. The polygon mirror comprises a plurality of reflective facets. For at least two of the plurality of reflective facets, each reflective facet is arranged such that: a first edge, a second edge, and a third edge of the reflective facet correspond to a first line, a second line, and a third line; the first line and the second line intersect to form a first internal angle of a plane comprising the reflective facet; and the first line and the third line intersect to form a second internal angle of the plane comprising the reflective facet. The first internal angle is an acute angle; and the second internal angle is an obtuse angle.

Abstract: Devices, systems, and methods for treating aneurysms are disclosed herein. According to some embodiments, the present technology includes a treatment system comprising a delivery shaft, a manipulation shaft slidably positioned within the lumen of the delivery shaft, and an occlusive device configured for implantation within the aneurysm. The occlusive device can comprise a plurality of filaments that are secured to one another at a proximal end of the occlusive device by a cured material. The occlusive device can comprise inner and outer layers of braided filaments, wherein the proximal end region of the inner layer has an exposed portion that extends proximally beyond the proximal end region of the outer layer, and wherein the cured material extends into and fills interstices between the braided filaments at the proximal end regions of the inner and outer layers.