Abstract: A short-offset transient electromagnetic transmission system, including: an electromagnetic transmitter with transmission power supplies P1, P2, P3, P4, grounding electrodes A, B, C, D, F, and transmission wires LA, LB1, LB2, LC1, LC2, LD1, LD2, LE. The electrodes A and B are connected to the transmission power supply P1 via the wires LA and LB1. The electrodes B and C are connected to the transmission power supply P2 via the wires LB2 and LC1. The electrodes C and D are connected to the transmission power supply P3 via the wires LC2 and LD1. The electrodes D and E are connected to the transmission power supply P4 via the wires LD2 and LE. The wires LA and LB1 are pulled from the electromagnetic transmitter to the electrode B and the wires LD2 and LE are pulled from the electromagnetic transmitter to the electrode D in a twisted-pair manner.

Abstract: Disclosed herein is a method for aramid polymerization using carbon dioxide as a solvent, comprising reacting phenylenediamine with benzenedicarbonyl dichloride, wherein an acid-binding agent is added to the reaction system, and liquid carbon dioxide and/or a supercritical carbon dioxide fluid is used as a reaction solvent. The method of the present application is environmentally friendly, saves resources, has low cost, and is safe for production and suitable for industrial production. The polycondensate obtained in the present application has a controllable molecular weight, a good product quality, and an intrinsic viscosity ?inh of 8-9 dl/g. The yield in the aramid condensation stage can reach 98%, and the recovery rate of the aramid condensation solvent is higher than 90%.

Abstract: A network device role self-adaptive method and apparatus are provided. Specifically, a first network device and a neighbor network device both determine their respective priority according to information including a connection result between the corresponding network device itself and a server; the first network device receives a second start frame which is sent by the neighbor network device and comprises the priority of the neighbor network device, and then determines whether its own priority and the priority of the neighbor network device meet preset conditions; and if yes, when the priority of the first network device is higher than the priority of the neighbor network device, the first network device determines its own role as an authentication access controller, and when the priority of the first network device is lower than the priority of the neighbor network device, the first network device determines its own role as a request device.

Abstract: A material handling system includes: a frame defining a first axis; a plurality of suction units coupled to the frame and distributed in rotational symmetry about the first axis; and at least one stopper. The plurality of suction units collectively defines a distal plane normal to the first axis, with each of the plurality of suction units being operable to provide a suction force in a suction direction parallel to the first axis. The at least one stopper is fixedly coupled to the frame and extends beyond the distal plane to provide one or more abutment ends disposed stationary relative to the frame. The one or more abutment ends define a transverse offset axis extending through all of the one or more abutment ends. The transverse offset axis is a straight line spaced apart from the first axis and parallel to the distal plane.

Abstract: Provided is a sampling method for surface sediments in an intertidal zone based on an unmanned aerial vehicle platform, including: at low tide, automatically or manually moving an unmanned aerial vehicle to an appropriate height above a sampling position of the surface sediments in the intertidal zone according to a preset waypoint. The unmanned aerial vehicle platform is equipped with a winch, a releaser and a surface sampler. Operation process: the sampler is released, and the sampler is inserted into seabed by gravity to obtain a sample with a specified quality; the unmanned aerial vehicle rises vertically, and uses a lift to take the sample off an intertidal zone ground; the winch is started to recover the sampler to a bottom of the unmanned aerial vehicle; after the completion, the unmanned aerial vehicle automatically or manually returns to an initial position.

Abstract: Embodiments of the disclosure provide a method, an apparatus, a device and a storage medium for generating media content. The method includes: presenting a configuration interface based on a selection of first media content, the configuration interface including an input control for inputting a prompt item; acquiring a target prompt item via the input control; and generating second media content, the second media content including a first segment and a second segment, the first segment corresponding to the first media content, and the second segment generated based on a target image in the first media content and the target prompt item.

Abstract: Systems and methods of the present disclosure are directed to a method performed by a network node for antenna phase error compensation via reinforcement learning. The method includes initializing M Multi-Arm Bandit (MAB) models to determine M phase offsets for phase deltas of N antenna branches with dual polarization where M=N?3. The method includes selecting M phase offsets with the M MABs. The method includes applying the M phase offsets to phase(s) of at least one antenna branch during transmission. The method includes, while applying the M phase offsets, determining reward values for the M phase offsets. The method includes, based on the reward values, updating the parameters of the M MAB models.

Abstract: Disclosed are a voltage drop measurement system and methods for measuring resistivity of a nuclear reactor cladding. The system includes a short cladding sample of a nuclear reactor cladding. Two electrically conductive plugs are attached to the short cladding. A power supply is electrically coupled to the each of the two electrically conductive plugs and is configured to apply an electrical current to the short cladding through the two electrically conductive plugs. Two needle like probes are electrically coupled to a surface of the short cladding between the two electrically conductive plugs. The needle like probes are spaced apart by a distance L. Resistivity and heat flux are determined in accordance with Equations (1)-(4).

Abstract: An antenna structure includes a substrate, a ground layer, a radiation patch, a first feed structure, and a second feed structure. The radiation patch, the first feed structure, and the second feed structure are located on a first surface of the substrate, and the ground layer is located on a second surface of the substrate. The first surface and the second surface are two surfaces of the substrate facing away from each other. The radiation patch has a slotted structure. In a first direction, the first feed structure and the second feed structure are symmetrically located on both sides of the radiation patch.

Abstract: Provided is a method for synthesizing 1H-furo[3,2-b]imidazo[4,5-d]pyridine compounds. The method comprises the following steps of: reacting compound 1 with compound 2 in a solvent in the presence of a base to obtain compound 3; subjecting the compound 3 to a reduction reaction to obtain compound 4; and subjecting the compound 4 to a ring-closing reaction with compound 5 or compound 5? to obtain compound 6 or a hydrate thereof, wherein R is methyl or ethyl, the methyl or ethyl is optionally substituted by hydroxyl, and X?O or CH2. The method for synthesizing the 1H-furo[3,2-b]imidazo[4,5-d]pyridine compound has the advantages of high yield, fewer impurities and is easy to control, saves the cost. The method is simple and convenient to operate, and is suitable for industrial scale.

Abstract: Embodiments of the disclosure relate to a method, an apparatus, a device, and a storage medium for generating media content. The method proposed herein includes: in response to receiving a content generation request, presenting a configuration interface including at least a first input component and a second input component; obtaining a plurality of reference images via the first input component and a prompt item via the second input component; and generating a target media content based on the plurality of reference images and the prompt item, where the target media content includes a plurality of frames corresponding to the plurality of reference images. In this way, the embodiments of the present disclosure can support the user to further control the generated target media content by inputting multiple reference images and prompt words, thereby improving quality of the generated target media content and enhancing user experience.

Abstract: An artificial-intelligence-assisted (AI-assisted) certification system includes an argumentation processor and an assurance case processor. The argumentation processor is configured to generate an argumentation pattern. The assurance case processor is configured to obtain the argumentation pattern from the argumentation processor, to automatically generate an assurance case based on one or more argumentation patterns, to determine evidence indicative of premises in the argumentation pattern, and to automatically assess the assurance case based on the evidence.

Abstract: The present application provides novel PRMT5 and/or MTA-cooperative PRMT5 inhibiting compounds, or pharmaceutically acceptable salts thereof. The present application also provides pharmaceutical compositions comprising one or more of the compounds, or pharmaceutically acceptable salts thereof as an active ingredient, and the use of the compounds, or pharmaceutically acceptable salts thereof in the treatment of diseases or disorders, including cancers.

Abstract: The present disclosure relates to a dual gerotor apparatus. The dual gerotor apparatus comprises a housing configured to provide a first and second hydraulic fluid circuit sharing a single inlet and a single outlet. The dual gerotor apparatus further comprises a gerotor assembly coupling with a rotatable shaft, the gerotor assembly is configured to transfer a hydraulic fluid flowing through the first or second hydraulic fluid circuit from the single inlet to the single outlet. The gerotor comprises a first gerotor pump and a second gerotor pump, the first gerotor pump will be in operation when the rotatable shaft rotates in a first direction, and the second gerotor pump will be in operation when the rotatable shaft rotates in a second direction.

Abstract: Provided are a method and an apparatus for generating a video, a device, and a medium. In one method, a first reference image and a second reference image are determined from a plurality of reference images in a reference video. A reference text for describing the reference video is received. A generation model is acquired based on the first reference image, the second reference image and the reference text. The generation model is configured to generate a target video based on a first image, a second image and a text. With example implementations of the present disclosure, the second reference image can serve as guiding data to determine a development direction of a story in the video. In this way, the generation model can clearly grasp changes of various image contents in the video, which is beneficial to generating richer and more realistic videos.

Abstract: Provided are a method, apparatus, device and medium for generating a video. In one method, a plurality of images for respectively describing a plurality of target images in a target video are received. A text for describing a content of the target video is received. The target video is generated based on the plurality of images and the text according to a generation model. With exemplary implementations of the present disclosure, the plurality of images received can serve as guiding data to determine a development direction of a story in the video, which contributes to the generation of a richer and more realistic dynamic video.