Abstract: Methods, systems, apparatuses, devices, and computer program products are described. A flow generation service may receive a natural language input that indicates instructions for automating a task according to a first process flow. Using a large language model (LLM), the flow generation service may decompose the natural language input into a set of elements (e.g., logical actions) and connectors, where the LLM may be trained on first metadata corresponding to a second process flow that is created manually by a user. In addition, using the LLM, the flow generation service may generate second metadata corresponding to each of the set of elements based on decomposing the natural language input. The flow generation service may sequence and merge the set of elements to generate the first process flow. In some examples, the flow generation service may send, for display to a user interface of a user device, the first process flow.

Abstract: The present application provides a control method, an auxiliary power supply of a photovoltaic inverter, and a photovoltaic power generation system. The auxiliary power supply includes a rectifier circuit and a conversion circuit with at least one output terminal. The conversion circuit includes a voltage determining unit and a power determining unit. The conversion circuit is coupled to an output terminal of the rectifier circuit, and is configured to convert direct current power into at least one auxiliary voltage. The power determining unit and the voltage determining unit are coupled to an input terminal of the inverter circuit or an input terminal of the photovoltaic inverter, which are configured to obtain output power and an output voltage of the solar panel, respectively. When the output voltage is greater than the start-up voltage and the output power is greater than the start-up power, the auxiliary power supply starts.

Abstract: The present disclosure describes techniques for user guidance of a creation mode. The techniques comprise acquiring creation guidance information for a user, the creation guidance information configured to guide the user to use a creation function in an application, and the creation function configured to create first multimedia content; presenting, in a current page of the application, second multimedia content created in a creation mode and a visual representation corresponding to the creation guidance information, the visual representation comprising a creation user interface element, the creation user interface element configured to enable the application to enter the creation mode for initiating a creation of the first multimedia content; and presenting a creation page associated with the creation function based on interaction associated with the visual representation.

Abstract: Provided are a method and apparatus for user guidance, a device and a storage medium. The method includes: acquiring creation guidance information for a user, the creation guidance information being used for guiding the user to use a creation function in an application, and the creation function being used for creating multimedia content. The method further includes: in a case where the application is in an active state, presenting, in an active page of the application, a visual representation corresponding to the creation guidance information. The method further includes: switching, on the basis of interaction associated with the visual representation, from the active page to a creation page associated with the creation function. In this way, the user can be guided and promoted to use the creation function of the application.

Abstract: Disclosed is a power conversion circuit, comprising a three-phase inductor and a switching conversion unit, and the three-phase inductor is integrated into a magnetic assembly, the magnetic assembly comprising: two magnetic yokes relatively parallel to each other; a first, a second and a third winding column spaced apart sequentially and located between the two magnetic yokes, and three windings wound around the first, the second and the third winding column in one-to-one correspondence for forming an phase inductor of the three-phase inductor respectively, and phase differences between power frequency currents flowing in any two of the windings are 120°; wherein when a reference current is applied to each of the windings, magnetic fluxes on the first and the third winding column have a first reference direction, and a magnetic flux on the second winding column has a second reference direction opposite to the first reference direction.

Abstract: The present disclosure provides a rapid shutdown device for a photovoltaic system, which is connected between a photovoltaic power generation module and a photovoltaic inverter and comprises an input port and an output port. The rapid shutdown device further comprises: a first switch and a second switch; a third switch and a fourth switch; a controller coupled to control terminals of the first switch, the third switch, and the fourth switch, and configured to control on and off of the first switch, the third switch, and the fourth switch, so that the rapid shutdown device operates in a normal state, a bypass state or a shutdown state.

Abstract: Provided are a method and apparatus for user guidance, a device and a storage medium. The method includes: acquiring creation guidance information for a user, the creation guidance information being used for guiding the user to use a creation function in an application, and the creation function being used for creating multimedia content. The method further includes: in a case where the application is in an active state, presenting, in an active page of the application, a visual representation corresponding to the creation guidance information. The method further includes: switching, on the basis of interaction associated with the visual representation, from the active page to a creation page associated with the creation function. In this way, the user can be guided and promoted to use the creation function of the application.

Abstract: It is disclosed an insulation impedance detection circuit and detection method of a photovoltaic inverter system. The photovoltaic inverter system includes one or more input circuits and an inverter circuit, each of the input circuit electrically coupled to the inverter circuit through a positive bus and a negative bus, with a first equivalent impedance Rp between the positive bus and a protective earth point and a second equivalent impedance Rn between the negative bus and the protective earth point. The detection circuit includes: a bus voltage sampling circuit coupled to the positive bus and the negative bus for generating a first bus voltage and a second bus voltage; a protective earth voltage sampling circuit coupled to the protective earth point for generating a first protective earth voltage and a second protective earth voltage; and a controller for calculating an equivalent insulation impedance.

Abstract: The present application provides a control method, an auxiliary power supply of a photovoltaic inverter, and a photovoltaic power generation system. The auxiliary power supply includes a rectifier circuit and a conversion circuit with at least one output terminal. The conversion circuit includes a voltage determining unit and a power determining unit. The conversion circuit is coupled to an output terminal of the rectifier circuit, and is configured to convert direct current power into at least one auxiliary voltage. The power determining unit and the voltage determining unit are coupled to an input terminal of the inverter circuit or an input terminal of the photovoltaic inverter, which are configured to obtain output power and an output voltage of the solar panel, respectively. When the output voltage is greater than the start-up voltage and the output power is greater than the start-up power, the auxiliary power supply starts.

Abstract: The present disclosure provides a rapid shutdown device for a photovoltaic system, which is connected between a photovoltaic power generation module and a photovoltaic inverter and comprises an input port and an output port. The rapid shutdown device further comprises: a first switch and a second switch; a third switch and a fourth switch; a controller coupled to control terminals of the first switch, the third switch, and the fourth switch, and configured to control on and off of the first switch, the third switch, and the fourth switch, so that the rapid shutdown device operates in a normal state, a bypass state or a shutdown state.

Abstract: It is disclosed an insulation impedance detection circuit and detection method of a photovoltaic inverter system. The photovoltaic inverter system includes one or more input circuits and an inverter circuit, each of the input circuit electrically coupled to the inverter circuit through a positive bus and a negative bus, with a first equivalent impedance Rp between the positive bus and a protective earth point and a second equivalent impedance Rn between the negative bus and the protective earth point. The detection circuit includes: a bus voltage sampling circuit coupled to the positive bus and the negative bus for generating a first bus voltage and a second bus voltage; a protective earth voltage sampling circuit coupled to the protective earth point for generating a first protective earth voltage and a second protective earth voltage; and a controller for calculating an equivalent insulation impedance.

Abstract: This invention provides microfluidic devices with graphene films as architectural materials and methods of fabrication and use thereof in X-ray analysis.

Abstract: The invention provides a method for CSI-based fine-grained gesture recognition, wherein the method comprises the following steps: determining a start point, an end point, a velocity, a direction and/or an inflection point of at least one stroke gesture in multiple dimensions according to an eigenvalue of channel state information; dividing the strokes according to the start point, the end point, the velocity, the direction and/or the inflection point of the stroke using a machine learning method and forming a stroke sequence; building a stroke decipherment model according to frequencies of the strokes appearing in natural language rules and/or scientific language rules and/or connection rules between the strokes; and dividing and recognizing the stroke sequence as a letter sequence, a radical sequence, a numeral sequence and/or a pattern sequence conforming to the natural language rules and/or the scientific language rules using the stroke decipherment model.

Abstract: The invention provides a method for CSI-based fine-grained gesture recognition, wherein the method comprises the following steps: determining a start point, an end point, a velocity, a direction and/or an inflection point of at least one stroke gesture in multiple dimensions according to an eigenvalue of channel state information; dividing the strokes according to the start point, the end point, the velocity, the direction and/or the inflection point of the stroke using a machine learning method and forming a stroke sequence; building a stroke decipherment model according to frequencies of the strokes appearing in natural language rules and/or scientific language rules and/or connection rules between the strokes; and dividing and recognizing the stroke sequence as a letter sequence, a radical sequence, a numeral sequence and/or a pattern sequence conforming to the natural language rules and/or the scientific language rules using the stroke decipherment model.

Abstract: An embodiment according to the invention provides methods for making interlayer covalent bonds in bilayer, trilayer, and multilayer graphene. Raman spectroscopy is used to characterize the resulting material, and the Raman peak at approximately 1330 cm?1 coincides with the characteristic peak of diamond and polycrystalline nanodiamond peaks published in the art. This indicates that the process induces the formation of sp3 carbon-carbon (C—C) bonds (similar to the ones in diamond) between the graphene layers. The graphene bilayer or multilayer converts to sp3 bonded carbon only partially, as the Raman spectrum also indicates a strong component of graphene still remaining in the bilayer or multilayer.

Abstract: A liquid crystal display panel, a sealing performance testing method thereof and a display device are provided. In the liquid crystal display panel, a side of the array substrate facing the opposed substrate is provided with a plurality of independent first conductive portions, a side of the opposed substrate facing the array substrate is provided with a plurality of independent second conductive portions, sealant is an anisotropic conductive adhesive, all of the first conductive portions and all of the second conductive portions are electrically connected through the sealant to form an unclosed conductor surrounding a display region; by testing a resistance value between any two first conductive portions on the array substrate, it can be determined that there is a micro gap or breaking sealant problem upon the resistance value being abnormal.

Abstract: This invention provides microfluidic devices with graphene films as architectural materials and methods of fabrication and use thereof in X-ray analysis.

Abstract: A liquid crystal display panel, a sealing performance testing method thereof and a display device are provided. In the liquid crystal display panel, a side of the array substrate facing the opposed substrate is provided with a plurality of independent first conductive portions, a side of the opposed substrate facing the array substrate is provided with a plurality of independent second conductive portions, sealant is an anisotropic conductive adhesive, all of the first conductive portions and all of the second conductive portions are electrically connected through the sealant to form an unclosed conductor surrounding a display region; by testing a resistance value between any two first conductive portions on the array substrate, it can be determined that there is a micro gap or breaking sealant problem upon the resistance value being abnormal.