Abstract: A coupling structure includes a single mode active device and a planar optical waveguide. Specifically, the planar optical waveguide includes a silica waveguide for transmitting an optical signal, where the silica waveguide includes a coupling section and a conduction section; the coupling section is of a regular trapezoidal structure or an inverted trapezoidal structure, where a surface of the coupling section coupled to the single mode active device is a trapezoid top, and a surface of the coupling section connected with the conduction section is a trapezoid bottom; and a coupling gap is preset between the single mode active device and the planar optical waveguide.

Abstract: A channel information sending method, a data sending method, and a device are provided, to improve feedback precision of a precoding matrix. A first device includes: a receiving module, configured to receive a reference signal; a processing module, configured to measure the reference signal to obtain first channel information and second channel information; and a sending module, configured to send the first channel information and the second channel information. When generating the precoding matrix, the second device may perform weighted combination on M first vectors based on the weighted combination factor indicated by the received second channel information, instead of selecting only one eigenvector from a plurality of eigenvectors, so that the generated precoding matrix is more precise.

Abstract: The present invention provides methods, processes, and systems for the manufacture of three-dimensional articles made of polymers using 3D printing. A layer of prepolymer is deposited on a build plate to form a powder bed. The deposited powder bed is heated to about 50° C. to about 170° C. Then, a solution of activating agent is printed on the powder bed in a predetermined pattern, and a stimulus is applied converting the prepolymer to the final polymer. After a predetermined period of time, sequential layers are printed to provide the three-dimensional article. The three-dimensional object can be cured to produce the three-dimensional article composed of the final polymers.

Abstract: FN3 domains that specifically bind Fc?RII, their conjugates and antibody fusions, isolated nucleotides encoding the molecules, vectors, host cells, and methods of making and using them.

Abstract: An OLED driving circuit is disclosed. The OLED driving circuit includes at least two types of pixel driving circuits for driving each pixel of an OLED display panel. The at least two types of the pixel driving circuits have different types and/or amounts of elements so a different pixel driving circuit is designed for each pixel. In comparison with a current display panel using the same driving circuit, a part of the pixel driving circuit is simplified to simplify a structure and to reduce a space occupied by the OLED driving circuit on an effective area of the display panel.

Abstract: Methods and compositions for synthesizing nucleic acid sequences in an emulsion are provided.

Abstract: A channel state information sending method, a channel state information receiving method, and a device are disclosed, to reduce resource overheads required when a terminal device feeds back CSI to a network device in a scenario of a high precision codebook-based precoding matrix. The method includes: determining, by a terminal device, a precoding matrix W; sending, by the terminal device, a signal including CSI to a network device; obtaining, by the network device, an RI and indication information based on the signal including the CSI; obtaining, by the network device, a PMI2 based on the RI and the indication information; and determining, by the network device, the precoding matrix W based on the rank indicator RI and the second precoding matrix indicator PMI2.

Abstract: A voltage converter may include a first set of silicon (Si)-based power devices coupled to a first direct current (DC) voltage source and a second set of Si-based power devices coupled to a second DC voltage source. The voltage converter may also include a first set of silicon-carbide (SiC)-based power devices coupled to the first set of Si-based power devices and to the second set of Si-based power devices. Each SiC-based power device of the first set of SiC-based power devices may switch at a higher frequency as compared to each Si-based power device of the first and second sets of the Si-based power electronic devices.

Abstract: A system includes a voltage converter and a controller for controlling the operation of the voltage converter. The voltage converter includes a plurality of legs, wherein each leg includes a first and a second set of silicon (Si)-based power devices. The first set of Si-based power devices includes a first and second Si-based power devices connected to each other at a first interconnection node and the second set of Si-based power devices includes a third and fourth Si-based power devices connected to each other at a second interconnection node. The first and second set of Si-based power devices are coupled across a first and second DC voltage sources respectively. A first set of Silicon-Carbide (SiC) based power devices is coupled across the first and second interconnection nodes. The system also includes a snubber capacitor connected across the first and the second interconnection nodes.

Abstract: A channel information reporting method and apparatus and a system are used to improve adaptive performance of a link. A first device includes: a receiving module, configured to receive a reference signal from a second device; a processing module, configured to: perform channel estimation based on the reference signal to obtain a channel matrix, decompose the channel matrix to obtain an unquantized precoding matrix, and generate channel information used to describe the unquantized precoding matrix; and a sending module, configured to send the channel information used to describe the unquantized precoding matrix to the second device. The second device sends the channel information used to describe the unquantized precoding matrix. Therefore, a quantization error is avoided, so that a precoding matrix obtained by the first device is more accurate, thereby effectively improving the adaptive performance of the link.

Abstract: The present invention provides carbon quantum dots, preparation method and uses thereof. The preparation method of the carbon quantum dots comprises the following steps: (1) preparing a dispersion of carbon based material; (2) mixing a solution of halogenated quinone with the dispersion of carbon based material and preparing a dispersion of carbon based-halogenated quinone composite material by halogenated quinone grafting method; (3) adding a solution of H2O2 to the dispersion of carbon based-halogenated quinone composite material and carrying out reaction thereof, obtaining reaction products; (4) carrying out solid-liquid separation to the reaction products, with the resulting filtrate continuing to react, thus obtaining a dispersion of carbon quantum dots. This method adopts metal-free catalytic oxidation, the process of which is safe, convenient and low-cost, and is performed under a mild reaction condition without adding additional substances which are difficult to be separated.

Abstract: A pixel circuit is disclosed, including an electroluminescent element, first, second, third, fourth and fifth switching tubes, first and second capacitors. The first switching tube has first end connected to second end of fourth switching tube, second end connected to first end of electroluminescent element, first control end connected to second end of second switching tube; the second switching tube has first end inputting first timing signal, control end inputting second timing signal; the first capacitor has first end connected to first control end of first switching tube; the third switching tube has second end connected to second control end of first switching tube, control end inputting third timing signal; the second capacitor has first end connected to second control end of first switching tube, second end connected to first end of electroluminescent element; the fourth switching tube has control end inputting fourth timing signal.

Abstract: The present disclosure relates to an organic light-emitting diode (OLED) display device and a compensation circuit of an OLED. The compensation circuit of the OLED includes: a first thin film transistor (TFT), a second TFT, a third TFT, a fourth TFT, a fifth TFT, a sixth TFT, a first capacitor, and a second capacitor. As such, the compensation circuit of the present disclosure only requires the scanning signals and the emission signals, so as to simplify configurations of the circuit, and to reduce costs.

Abstract: The lockset includes a first body, a second body and a third body. The first body includes a connecting part, a first A part, and a first B part. The first A part includes a first A lock body, a first A upper face having a first A lock hole, and a first A side face having a first A positioning hole. The first B part includes a first B upper face having a first B lock hole and a first B side face having a first B positioning hole. The second body includes a second upper face having a second rotatable buckle and a second side face having a second positioning unit. The second rotatable buckle has a second rotating unit and a second lock unit. The third body includes a third upper face having a third rotatable buckle and a third side face having a third positioning unit.

Abstract: A foldable display apparatus is provided. The foldable display apparatus includes a first substrate, a second substrate, a flexible display panel having a first display area, a pliable display area and a second display area, which are sequentially connected, a first hinge base, a second hinge base, and a rotary connecting rod. An end of the rotary connecting rod is connected to the first hinge base, and the other end is connected to the second hinge base. When the rotary connecting rod rotates to the folded state, the first substrate and the second substrate are paralleled to and opposite each other.

Abstract: Disclosed is a network access management method. The network access management method includes: acquiring a network transmission state between a network device and a terminal having assessed the network device; and setting an access control parameter of the network device as a target parameter value, herein the target parameter value is used for controlling the number of terminals assessing the network device to match the network transmission state.

Abstract: A performance testing device for a multi-channel tunable laser, comprising a collimating and coupling lens, a first beam splitter, a power testing unit, a side-mode suppression ratio testing unit, a wavelength testing unit and a control and drive unit, the power testing unit being positioned in a reflection path of the first beam splitter, the wavelength testing unit being positioned in a transmission path of the first beam splitter, the side-mode suppression ratio testing unit being positioned in a reflection path of the second beam splitter, the control and drive unit being in a control connection with the power testing unit, the side-mode suppression ratio testing unit and the wavelength testing unit. The performance testing device has a simple structure, a low cost, and is convenient to use.

Abstract: A pixel compensation circuit and a display device are provided. The pixel compensation circuit and the display device include a restoring module, a data voltage writing module, a supply voltage writing module, a reference voltage writing module, a switch module, a storage capacitor, and a light-emitting device.

Abstract: Embodiments of the present invention provide a method, computer program product, and system for debugging optimized code. The system includes a FAT binary, wherein the FAT binary comprises a non-optimized native code and an internal representation of a program's source code. An optimus program is configured to transform the internal representation of the program's source code into a fully optimized native code. The system also includes an enhanced loader, wherein the enhanced loader is configured to communicate with a debugger to determine a type of code to load.

Abstract: Display methods and devices are disclosed. An exemplary display method may comprise: displaying a session list page, the session list page comprising a session page entry corresponding to a communication session in which a local end user participates; determining a read/unread status of a sent communication message by the local end user in the communication session; and displaying, in a display area of the session page entry corresponding to the communication session, a status identifier corresponding to the read/unread status.