Abstract: Methods and systems are provided for determining a variant of interest by analyzing sizes and sequences of cfDNA fragments obtained from a test sample. The methods and systems provided herein implement processes that synergistically combine size and sequence information, thereby improving specificity and sensitivity of assays over conventional methods.

Abstract: A fused tricyclic compound, an optical isomer, cis and trans isomers or an agromedically acceptable salt thereof, and insecticidal use thereof in agroforestry. A pyrazole-ring-contained fused heterocyclic compound, an agricultural composition, and a method of using the agricultural composition are also provided.

Abstract: A voltage regulator can include: N energy storage capacitors, each having first nodes connected together, where N is a positive integer; N input capacitors connected in series between two nodes of an input port; N input switch circuits, each being connected in parallel with a corresponding one of the N input capacitors, where each of the N input switch circuits is configured to selectively couple a second node of a corresponding one of the N energy storage capacitors to a first node or a second node of the corresponding input capacitor; and a first output switch circuit configured to selectively couple the first nodes of the N energy storage capacitors to a first node or a second node of an output port.

Abstract: A power converter can include at least one first power stage circuit and a second power stage circuit, where each of the at least one first power stage circuit can include: at least one power switch, configured as a main power switch; a first magnetic element; a first energy storage element configured to be coupled to a first node of the first power stage circuit together with one adjacent power stage circuit, and to be charged or discharged through the adjacent power stage circuit; and an auxiliary module configured to ensure that a current flowing through the first magnetic element is not less than zero in a current discontinuous mode, where a first terminal of the second power stage circuit is coupled to an adjacent first power stage circuit.

Abstract: A power converter can include: positive and negative input terminals configured to receive an input voltage; positive and negative output terminals configured to generate an output voltage; first and second power switches sequentially coupled in series between the positive input terminal and a first node; third and fourth power switches sequentially coupled in series between a second node and the negative input terminal, where there is no physical connection between the first node and the second node; a first energy storage element coupled between a common terminal of the first and second power switches and a common terminal of the third and fourth power switches; a first multi-level power conversion circuit coupled between the first node and the positive output terminal; and a second multi-level power conversion circuit coupled between the first node and the positive output terminal.

Abstract: The present disclosure relates to an automatic control type hot smoke testing system which includes a fire source system, a smoke generation system and a control system. The fire source system is used for generating fire source and includes a first tank and several liquid fuel atomizing jet burners, wherein the first tank includes an air tank which is used for providing air and a fuel control tank which is used for controlling valves, distributing fuel and inspecting flame of the burners. The smoke generation system is used for generating smoke and includes a second tank, a smoke outlet pipe, smoke cake clamps and smoke cake turntables. Smoke cakes are initially placed in the smoke cake clamps, then moved to an ignition position one by one by for ignition, and finally rotated to through hole positions of a smoke generation box to fall into the smoke generation box by the servo motor. The control system is used for controlling the fire source system and the smoking generation system.

Abstract: An alternating current to direct current conversion circuit includes N first power converters instead of a boost circuit including a power switch with a high withstand voltage. The N first power converters each have an input end and theses input ends are connected in series, to perform power factor correction. Therefore, the alternating current to direct current conversion circuit includes no power switch with a high withstand voltage, so that the alternating current to direct current conversion circuit has a small volume, low switching loss, less energy loss, and good heat dissipation, thereby increasing power density.

Abstract: An alternating current to direct current conversion circuit includes a rectifier circuit, a first DC to DC conversion module and a second DC to DC conversion module. The first DC to DC conversion module includes multiple power switches and an inductor and is coupled between the rectifier circuit and the second DC to DC conversion module. Multiple power switches in the first DC to DC conversion module are controlled to be turned on simultaneously, so that a voltage across each of the power switches in the first DC to DC conversion module is reduced. The alternating current to direct current conversion circuit includes no power switch with a high withstand voltage, so that the alternating current to direct current conversion circuit has a small volume, low switching loss, less energy loss, and good heat dissipation, thereby increasing power density.

Abstract: The present disclosure discloses a method and apparatus for generating animation. An implementation of the method may include: processing a to-be-processed material to generate a normalized text; analyzing the normalized text to generate a Chinese pinyin sequence of the normalized text; generating a reference audio based on the to-be-processed material; and obtaining a animation of facial expressions corresponding to the timing sequence of the reference audio based on the Chinese pinyin sequence and the reference audio.

Abstract: Methods and systems are provided for determining a variant of interest by analyzing sizes and sequences of cfDNA fragments obtained from a test sample. The methods and systems provided herein implement processes that synergistically combine size and sequence information, thereby improving specificity and sensitivity of assays over conventional methods.

Abstract: An organic light emitting diode (OLED) display panel, including an encapsulation layer, a polarizer, a touch function layer, an optical adhesive and a cover window, the polarizer is formed on the encapsulation layer. The touch function layer is formed on the polarizer. The optical adhesive is formed on the touch function layer. The cover window is formed on the optical adhesive. The touch function layer includes an inorganic protection sublayer, a first metal sublayer, a barrier sublayer, and a second metal sublayer formed on the polarizer in this order.

Abstract: A method and apparatus for generating a 3D joint point regression model are provided. An embodiment of the method includes: acquiring a sample image with a 2D label and a sample image with a 3D label; training part of channels of an output layer of a basic 3D joint point regression model, with the sample image with the 2D label as a first input, and with a joint point heat map set corresponding to the 2D label as a first expected output; and training all of the channels of the output layer, with the sample image with the 3D label as a second input, with a joint point heat map set corresponding to the 3D label as a first part output of a second expected output and with a joint point depth information map set corresponding to the 3D label as a second part output of the second expected output.

Abstract: The present disclosure discloses a method for generating a virtual image, an electronic device, and a storage medium, relating to a field of virtual reality, in particular to fields of artificial intelligence, Internet of Things, voice technology, cloud computing, etc. An implementation includes: acquiring a language description generated by a user for a target virtual character; extracting a respective semantic feature based on the language description; and generating the target virtual character based on the semantic feature.

Abstract: A resonant switching converter can include: a voltage switching circuit configured to receive a first input voltage, and to generate a second input voltage of a resonant branch coupled to the voltage switching circuit; where when the voltage switching circuit is in a first operating state, the second input voltage provided to the resonant branch is less than the first input voltage; and where when the voltage switching circuit is in a second operating state, the input voltage provided to the resonant branch is zero.

Abstract: A display module, a method of manufacturing the display module, and an electronic device include an array substrate, a light-emitting device layer, a thin film encapsulation layer, a touch layer, a polarizer layer, and a cover layer. The polarizer layer and the cover layer are formed on the light-emitting device layer through a deposition process.

Abstract: The present disclosure relates to a driving circuit and a wireless power transmitter including the same. In view of the fact that a transmitter-side coupling circuit exhibits a high resistance when an AC current having a frequency far away from its operating frequency is applied to input terminals, the present disclosure connects a plurality of transmitter-side coupling circuits which operates at different operating frequencies in parallel at output terminals of the same inverting circuit. The controller controls an operating frequency of the AC current output from the inverting circuit to drive different one of the transmitter-side coupling circuits to operate. Thus, one driving circuit can drive the transmitter-side coupling circuits which operate at different operating frequencies or under different technical standards to supply electric energy. The driving circuit is compatible with wireless power receivers which operate at different operating frequencies, and thus has improved compatibility.

Abstract: A flexible display and a method of fabricating same are provided. The flexible display integrates at least two of a flexible display panel, a touch function member, a polarizing member, and a protective cover in the flexible display. It is not necessary to use optical glue or the like to connect components that are integrated, thereby reducing a thickness of the flexible display and alleviating a technical problem that a current display device has a large thickness.

Abstract: A switching power supply circuit can include: an energy storage capacitor; a high-frequency switching network coupled to the energy storage capacitor, and being configured to receive a low-frequency AC input voltage, to charge the energy storage capacitor, to perform high-frequency chopping on the low-frequency AC input voltage and/or a voltage of the energy storage capacitor, and to generate a high-frequency AC signal; and a rectifier module coupled to the high-frequency switching network, and being configured to receive the high-frequency AC signal, to rectify the high-frequency AC signal, and to generate a DC signal.

Abstract: Technology provided herein relates in part to non-invasive classification of one or more genetic copy number alterations (CNAs) for a test sample. Certain methods include sampling a quantification of sequence reads from parts of a genome, generating a confidence determination, and using the confidence determination to enhance classification. Technology provided herein is useful for classifying a genetic CNA for a sample as part of non-invasive pre-natal (NIPT) testing and oncology testing, for example.

Abstract: A voltage regulator can include: N energy storage capacitors, each having first nodes connected together, where N is a positive integer; N input capacitors connected in series between two nodes of an input port; N input switch circuits, each being connected in parallel with a corresponding one of the N input capacitors, where each of the N input switch circuits is configured to selectively couple a second node of a corresponding one of the N energy storage capacitors to a first node or a second node of the corresponding input capacitor; and a first output switch circuit configured to selectively couple the first nodes of the N energy storage capacitors to a first node or a second node of an output port.