Abstract: A shift register unit and a method for driving the shift register unit, a gate drive circuit and a display device are provided. The shift register unit includes a driving signal generating module and a selecting module. The driving signal generating module generates a driving signal for driving n rows of gate lines to be turned on, a duration of the driving signal being equal to a duration spent on scanning the n rows of gate lines, and n is equal to or greater than 2. The selecting module, connected to the driving signal generating module and input terminals of the n rows of gate lines, selects the n rows of gate lines sequentially and connects each selected gate line to the driving signal generating module, such that the driving signal is inputted to the n rows of gate lines sequentially.

Abstract: An electric power tool and a method for driving a brushless motor in the electric power tool. The electric power tool includes a driving circuit for driving the brushless motor and position sensors (D1, D2, D3) for detecting positions of the rotor. The rotor of the brushless motor, when rotating in a normal direction, sequentially passes by a commutation position, where a signal of at least one of the position sensors (D1, D2, D3) in the brushless motor changes, and a reference position, where a back electromotive force of the stator winding of at least one phase in the brushless motor is at a midpoint position of the waveform of the back electromotive force. An electrical angle between the commutation position and the reference position ranges from 20° to 40°. The position sensors (D1, D2, D3) are configured such that performance of the brushless motor is improved.

Abstract: The present invention provides a method of producing genetically altered plants that are drought tolerant, and plants obtainable by said method and uses thereof.

Abstract: The present invention relates to a diagnostic biomarker, a method for identifying the diagnostic biomarker, and a diagnostic method using the diagnostic biomarker. Specifically, the present invention uses a ratio of ncRNAs as a diagnostic biomarker, identifies optimal ncRNAs pair associated with diseases based on SVM-RFE algorithm, and then uses the same for diagnosis of the diseases.

Abstract: The embodiments of disclosure disclose a method and device for transmitting and receiving wireless power. The method includes: switching a state of a resonance element used for transmitting and receiving electromagnetic waves to an electromagnetic wave transmission state; boosting a first direct current output by a mobile device to a second direct current having a predetermined voltage; inverting the second direct current to an alternating current; converting the alternating current into an electromagnetic wave and transmitting the electromagnetic wave, wherein the electromagnetic wave is used for charging a to-be-charged device. The embodiments of the disclosure provide a solution for wirelessly charging peripherals through a terminal and thus solves a problem that there is no solution provided to wirelessly charge peripherals through the terminal in the related art.

Abstract: It is provided a method for transmitting downlink signals. The method is performed in a network node of a cellular network and comprises the steps of: transmitting a first downlink signal to a wireless device, the first downlink signal comprising a first set of payload data; determining a failed reception of the first downlink signal; determining that a new set of payload data is available in a downlink buffer; combining at least part of the first set of payload data with at least part of the new set of payload data in a combined set of payload data; and transmitting a second downlink signal to the wireless device, the second downlink signal comprising the combined set of payload data.

Abstract: An electric tool includes a motor including a plurality of windings, a power circuit configured to selectively access a first power supply and a second power supply for supplying power for the motor, a connecting circuit including a switching device configured to enable the connecting circuit to have a first connection state and a second connection state, and a signal source configured to send a first control signal, when the power circuit accesses the first power supply, to the switching device so that the connecting circuit is in the first connection state, and send a second control signal, when the power circuit accesses the second power supply, to the switching device so that the connecting circuit is in the second connection state.

Abstract: An electric power tool and a method for driving a brushless motor in the electric power tool. The electric power tool includes a driving circuit for driving the brushless motor and position sensors (D1, D2, D3) for detecting positions of the rotor. The rotor of the brushless motor, when rotating in a normal direction, sequentially passes by a commutation position, where a signal of at least one of the position sensors (D1, D2, D3) in the brushless motor changes, and a reference position, where a back electromotive force of the stator winding of at least one phase in the brushless motor is at a midpoint position of the waveform of the back electromotive force. An electrical angle between the commutation position and the reference position ranges from 20° to 40°. The position sensors (D1, D2, D3) are configured such that performance of the brushless motor is improved.

Abstract: Impedance matching circuits and methods for radio frequency (RF) transmission coil are disclosed. An example impedance matching circuit includes a coil matching circuit, a RF power detection circuit, and a spectrometer. The spectrometer outputs an output voltage reversely applied on a varactor diode of the coil matching circuit. An impedance of the coil matching circuit is changed based on the output voltage. The spectrometer outputs a RF transmission signal to the RF power detection circuit, receives a power of a RF reflected signal corresponded to the output voltages. The spectrometer receives powers of different RF reflected signals corresponded to different output voltages, and assigns an output voltage corresponded to a minimum power of the RF reflected signals as an impedance matching voltage, where an equivalent impedance of the coil matching circuit and the RF transmission coil matches with an impedance of RF transmission lines.

Abstract: A power tool includes a housing, a saw blade for cutting a workpiece, a motor for driving the saw blade to rotate about a first axis, a circuit board for controlling the motor, a heat sink for cooling, and a base plate being formed with a flat surface for contacting with the workpiece during cutting. The housing includes a first containing portion being formed with a first container for containing the motor, a second containing portion extended along a direction substantially parallel to the flat surface from one of the two ends of the first containing portion along a direction substantially perpendicular to the first axis. The second containing portion is formed with a second container which is communicated with the first container. The circuit board and the heat sink are disposed in the second container.

Abstract: A cutting machine includes a cutting element for cutting material, a motor for driving the cutting element to rotate and a housing for containing the motor. The motor includes a rotor sleeve being formed with a receiving chamber, a motor shaft being capable of rotating together with the rotor sleeve, a stator core at least partially contained in the receiving chamber, stator coils wound around the stator core, and a stator bracket for fixing the stator core. The stator core is formed with a through hole for the motor shaft to pass there through, the stator coils are located outside the through hole and, the motor shaft is capable of rotating relative to the stator core.

Abstract: The present invention provides a visual fractional laser instrument, which comprises: an positioning cannula, the positioning cannula being a hollow tube with openings at both ends so as to locate a lesion site and define a path of the laser; a beam combiner component, the beam combiner component being a hollow tube with openings at both ends, and a side opening is provided on a side of the beam combiner component, wherein one end of the beam combiner component is connected to one end of the positioning cannula; a camera connected to the beam combiner component by the side opening to image the lesion site; a laser scanning component connected to another end of the beam combiner component for generating a laser beam used to scan the lesion site according to the image of the lesion site; and a control system connected to the laser scanning component and the camera, respectively.

Abstract: Methods of generating a gradient signal, gradient signal generators and magnetic resonance imaging systems are provided. In one aspect, a method includes obtaining a target amplitude and a target duration associated with a target precision corresponding to the gradient signal; generating a first actual amplitude by intercepting the target amplitude according to an actual precision of a DAC; generating a second actual amplitude according to the first actual amplitude, wherein a difference between the second actual amplitude and the first actual amplitude is 1; determining a first actual duration of outputting the first actual amplitude and a second actual duration of outputting the second actual amplitude according to the target amplitude, the target duration, the first actual amplitude and the second actual amplitude; controlling the DAC to output the first actual amplitude according to the first actual duration and output the second actual amplitude according to the second actual duration.

Abstract: Methods of generating a gradient waveform, gradient waveform generators and magnetic resonance imaging systems are provided. In one aspect, a first digital value is obtained by quantizing and coding spatial position information of a voxel of a subject according to the number of preset quantization bits, wherein the number of the quantization bits are more than the number of allowed input bits for a DAC; a second digital value is determined to be inputted into the DAC according to the first digital value and the number of the allowed input bits for the DAC; a quantization error is determined according to the first digital value and the second digital value; an error accumulating value is updated by accumulating the quantization error to the error accumulation value; the second digital value corrected according to the error accumulation value; and the corrected second digital value is inputted into the DAC.

Abstract: Methods of generating a gradient waveform, gradient waveform generators and magnetic resonance imaging systems are provided. In one aspect, a first digital value is obtained by quantizing and coding spatial position information of a voxel of a subject according to the number of preset quantization bits, wherein the number of the quantization bits are more than the number of allowed input bits for a DAC; a second digital value is determined to be inputted into the DAC according to the first digital value and the number of the allowed input bits for the DAC; a quantization error is determined according to the first digital value and the second digital value; an error accumulating value is updated by accumulating the quantization error to the error accumulation value; the second digital value corrected according to the error accumulation value; and the corrected second digital value is inputted into the DAC.

Abstract: An angle grinder includes a housing formed with a handle, a clamping device for mounting a grinding disk, an output shaft for driving the clamping device to rotate, a brushless motor being provided with a motor shaft, a transmission mechanism for transmitting power between the motor shaft and the output shaft, and a circuit board assembly for providing electricity to the brushless motor. The clamping device is disposed outside of the housing and connected with the output shaft. The output shaft is at least partially disposed inside of the housing and connected with the transmission mechanism. The brushless motor is arranged between the transmission mechanism and the circuit board assembly in a direction substantially parallel to the motor shaft, and the motor shaft is disposed along a direction substantially perpendicular to the output shaft.

Abstract: Disclosed is a method for recoating an RTV anti-pollution flashover coating on an insulator coated with the RTV anti-pollution flashover coating. The insulator includes an insulator body, a steel cap connected to an upper surface of the insulator body, and a steel pin connected to a lower surface of the insulator body. The method includes: (1) wiping off dirt on a surface of the insulator; (2) determining whether the insulator can be recoated; (3) performing coating by using an RTV anti-pollution flashover coating with the content of solid being 55%-65%. After coating is performed, a newly coated anti-pollution flashover coating can be closely adhered to a surface of the insulator, swelling does not occur, adhesion of the coating with respect to the insulator is not reduced, the hydrophobicity of the surface is recovered, and non-reduction of a pollution flashover voltage of the insulator is ensured.

Abstract: Methods and arrangements for mitigating or avoiding inter cell interference on a control channel on which scheduling request are transmitted from UEs to a serving base station. The solution relates to classifying the UEs based e.g. on the type of services applied by the UEs, and allocating resources on the control channel based on the classification.

Abstract: The present disclosure relates to the field of communication technologies, and more particularly, to an adjustable coupling device and a radio frequency communication device. The adjustable coupling device includes a coaxial transmission line for transmitting signals across the two terminals thereof and a coupling body for sampling the signals via coupling. The adjustable coupling device further includes a coupling cavity formed on the outer surface of the coaxial transmission line; a printed circuit board on which the coupling body is disposed, the printed circuit board capping the coupling cavity to seal the coupling body within the coupling cavity; a tuner, disposed through the printed circuit board, where the lower end of the tuner extends into the coupling cavity, and the tuner can be moved up and down to change the depth thereof extended into the coupling body so as to change the electromagnetic field distribution within the coupling cavity.

Abstract: The present invention provides a method of producing transgenic plants which are drought resistant, plants obtainable by the method and uses thereof.