Abstract: In some examples, an embolization device includes multiple sections with three-dimensional non-helical structures when deployed at a vascular site. The multiple sections include a first section and one or more second sections that are smaller than the first section. The first section may have a deployed structure configured to anchor the device at a vascular site (e.g., a blood vessel) of a patient while each of the one or more second sections may be formed from loops that configured to pack and obstruct the vascular site. In some cases, the embolization device also includes a third section having a deployed configuration with multiple helical windings or loops is configured to anchor the embolization device at the vascular site.

Abstract: A multi-drivers-in-the-loop driving testing platform is provided including at least a sensing simulation system, a vehicle dynamic simulation system, a driving simulator and a scene simulation system. The sensing simulation system is configured to generate object-level perception information, and send it to a vehicle control system; the driving simulator is configured to provide a driving environment and a driving scene for a human driver, output a driving instruction according to a driving intention of the human driver, and then send the driving instruction to the vehicle control system; the vehicle dynamic simulation system is configured to calculate state information according to control signals output by the vehicle control system; and the scene simulation system is configured to update the driving scene displayed in the driving simulator timely according to the vehicle state information. The disclosure saves costs of research and development and shortens cycles of research and development.

Abstract: An intra prediction method by using cross component liner prediction mode (CCLM), includes: determining a luma block corresponding to a current chroma block; obtaining luma reference samples of the luma block based on determining L available chroma reference samples of the current chroma block, wherein the obtained luma reference samples of the luma block are down-sampled luma reference samples; calculating linear model coefficients based on the luma reference samples and chroma reference samples that correspond to the luma reference samples; and obtaining a prediction for the current chroma block based on the linear model coefficients and values of a down-sampled luma block of the luma block.

Abstract: A relay determination method is disclosed. The method includes: performing relay selection or relay reselection according to a network access mode of at least one candidate relay device. The network access mode comprises Non-Terrestrial Network (NTN) access or terrestrial access.

Abstract: A resonant switched capacitor converter includes a control system, a first capacitor, a plurality of resonant systems, and a plurality of second capacitors coupled in series. The first capacitor is coupled in series to the second capacitors. One resonant system corresponds to one second capacitor. Each of the resonant systems includes a first switch system, a resonant circuit, and a second switch system. The control system is coupled to the resonant systems and configured to control, based on a target output voltage gain, switches in the first switch system and the second switch system in each resonant system to be turned on or turned off, to enable the resonant switched capacitor converter to obtain an output voltage gain equal to the target output voltage gain.

Abstract: Embodiments of this application relate to the field of video picture coding technologies, and disclose a bidirectional inter prediction method and apparatus, to improve coding efficiency. The method includes: obtaining indication information, where the indication information is used to indicate that second motion information is determined based on first motion information, the first motion information is motion information of a current picture block in a first direction, and the second motion information is motion information of the current picture block in a second direction; obtaining the first motion information; determining the second motion information based on the first motion information; and determining prediction samples of the current picture block based on the first motion information and the second motion information.

Abstract: A mechanism for position dependent spatial varying transform (SVT) for video coding. A prediction block and a corresponding transformed residual block are received at a decoder. A type of spatial varying transform (SVT) employed to generate the transformed residual block is determined. A position of the SVT relative to the transformed residual block is also determined. An inverse of the SVT is applied to the transformed residual block to reconstruct a reconstructed residual block. The reconstructed residual block is then combined with the prediction block to reconstruct an image block.

Abstract: This application discloses a method of displaying information in a program interface of an application performed by a computer device. The method includes: displaying a virtual keyboard control and an extension bar control in the program interface; in response to an input operation in the virtual keyboard control, displaying at least one character string in the extension bar control, the at least one character string being determined according to the input operation in the virtual keyboard control; and in response to a select operation on a target string among the at least one character string in the extension bar control, displaying a function interface of applying a target function to the target string. This embodiment allows a user to quickly switch between function interfaces when using an application, thereby reducing operation steps of the user and improving human-computer interaction efficiency.

Abstract: The present disclosure refers to an alternating current/direct current (AC/DC) converter for an on board charger (OBC). The AC/DC converter includes a three-phase-input comprising three inputs, a single-stage dual-active bridge (DAB) circuit, and an auxiliary circuit. The auxiliary circuit includes two switching means and an energy storage means, the auxiliary circuit also includes at least two branches, wherein each of the at least two branches include one of the switching means. At least one branch of the at least two branches is connected to a single-phase AC input of the three inputs, and another branch of the at least two branches is connected to an input of the three inputs which is not a single-phase AC input, and the another branch comprises the energy storage means.

Abstract: A resonant switched capacitor direct current/direct current converter includes N resonant switched capacitor groups, M capacitors, and at least one LC series circuit, where N is an integer greater than or equal to 2, and M is an integer less than or equal to N. Each resonant switched capacitor group includes switches and a resonant circuit. The resonant circuit includes a resonant inductor and a resonant capacitor. The LC series circuit, namely, a circuit including an inductor and a capacitor that are connected in series, is connected between any two resonant switched capacitor groups. At the moment when the switch is turned off, the resonant inductor is not sufficient to implement complete discharging of a junction capacitor of the switch. The inductor is added, to implement complete discharging of the junction capacitor of the switch, that is, to remove a current, so that the switch implements soft switching.

Abstract: An electric ball valve, comprising: a shaft portion, a magnetic ring, and a Hall sensor, the Hall sensor being in electrical and signal connection with a circuit board, the shaft portion being connected to an output shaft and capable of rotating along with the output shaft, the magnetic ring being sleeved on the radial periphery of the shaft portion, and the magnetic ring being capable of rotating along with the shaft portion; and a cushioning portion, the cushioning portion directly or indirectly abutting against an end of the shaft portion. Also provided is a method for manufacturing an electric valve. The present electric ball valve is provided with the cushioning portion at the end of the shaft portion, thereby facilitating reducing downward plays of the magnetic ring and the shaft portion in the axial direction during rotation along with the output shaft.

Abstract: A switched-capacitor DC/DC converter, a switching-mode power supply, and a control method. The switched-capacitor DC/DC converter includes a controllable switch and n switched capacitor modules, where the n switched capacitor modules are connected in series to form a voltage conversion branch circuit, and the voltage conversion branch circuit is connected to the controllable switch in series. n is an integer greater than or equal to 1. When the DC/DC converter implements different voltage conversion ratios, n may be different values. The converter can implement voltage step-down or voltage step-up, and does not include a transformer inside.

Abstract: A DC/DC converter and a voltage gain switching method and system. A first resonance unit of the DC/DC converter includes a first terminal and a second terminal connected to a second capacitor unit, and a third terminal and a fourth terminal connected to a first capacitor unit. A second resonance unit of the DC/DC converter includes a first terminal connected to a second terminal of the second capacitor unit, and a second terminal of the second resonance unit connected to a first input/output terminal of the DC/DC converter, a third terminal connected to the ground terminal of the DC/DC converter, and a fourth terminal connected to a first voltage gain changeover switch. The DC/DC converter can improve voltage gain switching efficiency.

Abstract: A conversion circuit includes a capacitor module, a balancing module, and a startup module. The capacitor module includes at least a first capacitor and a second capacitor. The balancing module includes at least a first resonant circuit. The startup module includes a direct current-direct current converter and a target capacitor. The first resonant circuit includes at least two groups of switches and a first resonant cavity. The first capacitor is connected in series to the second capacitor, and connected in parallel to the target capacitor. The first resonant circuit is separately connected to both ends of the first capacitor and the second capacitor by using the startup module. The balancing module balances voltages at both ends of the first capacitor and the second capacitor by controlling the switches in the first resonant circuit. The startup module is configured to start the balancing module and the capacitor module.

Abstract: This application discloses a method of displaying information in a program interface of an application performed by a computer device. The method includes: displaying a virtual keyboard control and an extension bar control in the program interface; in response to an input operation in the virtual keyboard control, displaying at least one character string in the extension bar control, the at least one character string being determined according to the input operation in the virtual keyboard control; and in response to a select operation on a target string among the at least one character string in the extension bar control, displaying a function interface of applying a target function to the target string. This embodiment allows a user to quickly switch between function interfaces when using an application, thereby reducing operation steps of the user and improving human-computer interaction efficiency.

Abstract: A converter circuit is provided in this application, which includes a capacitor module and a balance module. The capacitor module includes at least a first capacitor and a second capacitor. The balance module includes at least a first resonant circuit. The first resonant circuit includes at least two switch groups connected in parallel and a first resonant cavity bridged between the two switch groups. The first capacitor and the second capacitor are connected in series. The first resonant circuit is separately bridged between two ends of the first capacitor and between two ends of the second capacitor. The balance module controls each switch in the first resonant circuit, so that each switch works with the first resonant cavity to affect a current, to balance a voltage between the two ends of the first capacitor and a voltage between the two ends of the second capacitor.

Abstract: Disclosed is a method for obtaining multileaflet Medicago sativa materials by means of MsPALM1 artificial site-directed mutants. The method comprises: selecting a target site from an exon region of a compound leaf developmental regulatory gene MsPALM1 of Medicago sativa and constructing a plant CRISPR/Cas9 editing recombinant vector MsCRISPR/Cas9::PALM1 and introducing the vector into Medicago sativa cells and regenerating into plants, cutting and repairing to cause a loss-of-function mutation in the MsPALM1 gene of Medicago sativa cells, and then screening the mutant plants by restriction endonuclease digestion and/or targeted deep sequencing of the target sites of the regenerated plants to obtain lines carrying four MsPALM1 allelic genes with simultaneous loss of function mutation. After phenotypic identification, it was confirmed that the compound leaves of the regenerated plants changed from three leaflets to five leaflets.

Abstract: The present disclosure relates to a clamping device configured to clamp a substrate. The clamping device includes a clamping plate and a flattening mechanism. The flattening mechanism includes at least one adjusting member configured to operably act on the clamping plate to apply a force to the clamping plate to flatten the clamping plate.

Abstract: A method for site-specific mutagenesis of Medicago sativa genes by using a CRISPR/Cas9 system. The method comprises: first constructing a binary expression vector MsCRISPR/Cas9 that can be used for transforming Medicago sativa by Agrobacterium tumefaciens; then designing a target site for a target gene, and ligating the DNA fragment containing the guide sequence of the target site into MsCRISPR/Cas9 to construct a vector MsCRISPR/Cas9::target; and then transforming the Medicago sativa by Agrobacterium tumefaciens, and generating, by screening, a mutant transformed plant with the target gene mutated. According to the method, an MtU6 promoter is used for driving sgRNA transcription in the Medicago sativa.