Abstract: A power tool includes a working assembly and an electric motor. The electric motor is used for driving the working assembly to work. The electric motor includes a rotor assembly, a stator assembly, and an end cover assembly. The end cover assembly is used for fixing windings and leading out multiple motor lead wires. The end cover assembly includes coil end covers and a fixing member. The coil end cover is at least partially embedded into the stator assembly. The fixing member mates with the coil end cover to fix the motor lead wires. The end cover assembly is capable of changing the lead-out direction of the motor lead wires at least twice.

Abstract: A method for predicting a retention time of liquid chromatography under different chromatographic conditions includes: collecting experimental data; extracting structural information of a molecule according to SMLIES information of a compound, and constructing a molecular graph structure based on the structural information of the molecule; obtaining a physicochemical property of the molecule in the compound, and quantifying the physicochemical property to obtain a physicochemical property description vector; obtaining chromatographic column data, and generating a chromatographic encoding vector based on this data; constructing a graph neural network model, including a graph network layer, a readout layer and a linear layer; utilizing a dataset to iteratively train the graph neural network model to obtain a trained graph neural network model; and obtaining the SMLIES information and chromatographic conditions of the compound to be predicted, inputting them into the trained graph neural network model, and outpu

Abstract: A manned mower includes a vehicle frame and a support portion used for supporting a user; a traveling wheel set supporting the vehicle frame; a mowing element driven by a mowing electric motor; and a controller configured to apply a drive signal to a driver circuit to control the operation of the mowing electric motor. The controller is configured to receive a first electrical parameter related to the current of the mowing electric motor and when the first electrical parameter satisfies a first preset condition, limit the first electrical parameter within a preset range. When the first electrical parameter is limited within the preset range, the controller is further configured to selectively use a first method or a second method to determine the rotor position of the mowing electric motor so that the mowing electric motor does not stop when the first electrical parameter is within the preset range.

Abstract: An apparatus (1) for adjustably changing the polarisation state of incident light having at least a first wavelength. The apparatus (1) includes a polarisation changing optical metasurface (OMS) (3) arranged to reflect light of a first polarisation state, and to transmit light of a second polarisation state, said second polarisation state being different to said first polarisation state. The apparatus (1) also includes a mirror (9) arranged to reflect the transmitted light of the second polarisation state, wherein the apparatus (1) is arranged to move the mirror (9) and/or the polarisation changing OMS (3) relative to one another to alter a separation between the polarisation changing OMS (3) and the mirror (9), thereby altering a phase difference between the light reflected by the polarisation changing OMS (3) and the light reflected by the mirror (9) such that a combined polarisation state of light reflected by the apparatus (1) is adjustable.

Abstract: A system for analyzing a cell or tissue sample using polarized light, the system comprising: an apparatus for adjustably changing the polarization state of incident light having at least a first wavelength containing a first polarization state and a second polarization state; a light source arranged to provide the incident light to the apparatus; and a polarimeter, wherein the apparatus is arranged to direct polarized light onto a cell or tissue sample, and the polarimeter is arranged to receive light reflected from the cell or tissue sample, and measure the polarization state of said light.

Abstract: A self-propelled device includes a cutting assembly for cutting vegetation; a body for supporting the cutting assembly; and a traveling system for driving the body to move. The traveling system includes at least a traveling wheel; and a wheel hub motor integrally disposed in the traveling wheel. Along an axial direction of the traveling wheel, the first external dimension of the self-propelled device is greater than or equal to 0.2 m and less than or equal to 1.5 m. Along a direction perpendicular to the axial direction of the traveling wheel, the second external dimension of the self-propelled device is greater than or equal to 0.5 m and less than or equal to 1.5 m.

Abstract: The present invention discloses an industrial equipment operation, maintenance and optimization method and system based on a complex network model. The method includes the following steps: obtaining data of all sensors of industrial equipment, and calculating a Spearman correlation coefficient between data of every two of the sensors within the same time period; using each sensor as a node, and using the Spearman correlation coefficient as a weight of a network edge, to construct a fully connected weighted network; and obtaining, when an adjustment instruction for a target feature is received, a currently optimal parameter adjustment path of the target feature based on the fully connected weighted network. In the present invention, production equipment in reality is digitized to construct a complex network oriented to industrial big data. An optimal path for equipment parameter tuning may be found by using the network, thereby reducing dependence of an enterprise on a domain expert.

Abstract: A handheld power tool including a housing including a barrel and a head housing; a drive mechanism including an electric motor and a drive shaft, where the electric motor outputs power through the drive shaft; a transmission mechanism including a gear assembly; and an output mechanism including an output shaft for outputting power to the outside and at least partially disposed in the head housing; where the transmission mechanism drivingly connects the drive mechanism to the output mechanism. The barrel is formed with a first accommodation cavity and a second accommodation cavity, the electric motor is at least partially mounted in the first accommodation cavity, and the gear assembly is at least partially mounted in the second accommodation cavity.

Abstract: The present invention discloses an industrial equipment operation, maintenance and optimization method and system based on a complex network model. The method includes the following steps: obtaining data of all sensors of industrial equipment, and calculating a Spearman correlation coefficient between data of every two of the sensors within the same time period; using each sensor as a node, and using the Spearman correlation coefficient as a weight of a network edge, to construct a fully connected weighted network; and obtaining, when an adjustment instruction for a target feature is received, a currently optimal parameter adjustment path of the target feature based on the fully connected weighted network. In the present invention, production equipment in reality is digitized to construct a complex network oriented to industrial big data. An optimal path for equipment parameter tuning may be found by using the network, thereby reducing dependence of an enterprise on a domain expert.

Abstract: An intelligent device, and a system and a method for communication between an AP component and a WCN component of the intelligent device are provided. The WCN component includes at least one wireless communication functional component. The AP component includes a system layer and a kernel layer. The kernel layer includes at least one device node respectively corresponding to the at least one wireless communication function component. The kernel layer further includes a WCN communication component. The system layer is configured to invoke the WCN communication component through an API, to control the WCN communication component to periodically perform read and write operations on the device node to monitor a state of the WCN component.

Abstract: The embodiments of the disclosure relate to a data processing method and a computing system. For each die: a first reduction engine of multiple reduction engines corresponding to multiple computing cores included in a current die is determined; each computing core sends data to be reduced and a synchronization indicator to the first reduction engines in multiple dies; in response to receiving the data to be reduced and the synchronization indicators from the computing cores in multiple dies, the first reduction engine in the current die performs a reduction operation on the data to be reduced to generate a reduction computing result, and sends synchronization acknowledgments to the computing cores in the current die; and in response to receiving the synchronization acknowledgment, each computing core in the current die reads the reduction computing result from the first reduction engine in the current die.

Abstract: An apparatus comprising a first substrate comprising a nanostructured surface, thereby forming an optical metasurface; a mirror formed on a second substrate; and a mechanism arranged to move the first and second substrates relative to one another. The mechanism alters a separation between the first and second substrates between a first separation distance and at least a second separation distance. At the first separation distance the optical metasurface performs a first manipulation of incident light and at the second separation distance the optical metasurface does not perform the first manipulation of incident light. An optical system and a method are also described.

Abstract: Disclosed are a method and a system for acquiring three-domain information of ultrafast light field. The method includes: acquiring time-domain information at positions of respective spatial points in a first signal to be measured; acquiring first frequency-domain information of continuous light portions at positions of respective spatial points in a second signal to be measured; acquiring second frequency-domain information of pulse light portions at positions of respective spatial points in a third signal to be measured; and fusing the time-domain information, the first frequency-domain information, and the second frequency-domain information, and determining three-domain information of an ultrafast light field signal according to information obtained by the fusion; wherein, the first signal to be measured, the second signal to be measured and the third signal to be measured are three signals obtained by splitting the ultrafast light field signal to be measured.

Abstract: A motor includes a stator assembly, a rotor assembly, and a terminal assembly. The stator assembly includes a stator core and a winding wound onto the stator core. The winding includes an input end and an output end. The rotor assembly includes a rotor shaft extending along a direction of a first straight line. The terminal assembly is configured to connect or fix the input end and the output end. The stator core includes first-type laminations. Each of the first-type laminations is provided with connection arms and a special-shaped portion. The special-shaped portions are configured to form an access slot which is configured to connect the terminal assembly when the first-type laminations are stacked along a direction parallel to the first straight line. The access slot is disposed on an outer sidewall of the stator core.

Abstract: A device includes a master latch, a slave latch and a retention latch coupled to each other. The retention latch includes first and second active areas, first and second gate structures. The first and second active areas extend in a first direction. The first gate structure extends in a second direction, the first gate structure including first and second portions that are separated from each other. The first portion is arranged over the first active area, and the second portion is arranged over the second active area. The second gate structure extends in the second direction, and is arranged over the first active area. The second gate structure is separated from the second active area and the first gate structure in a layout view. An end portion of the second active area is between the first gate structure and the second gate structure.

Abstract: The present disclosure relates to example incoming call processing methods and devices. In one example method, a call request message is received by a terminal device from a core network. MT signaling interaction is performed by the terminal device with the core network based on the call request message. A determination is made, by the terminal device, on whether the MT signaling interaction succeeds within a preset duration. Prompt information is sent responsive to a determination that the MT signaling interaction fails within the preset duration.

Abstract: A register array includes a plurality of groups of latches. Each of the groups of latches includes a first latch, a second latch, and a test latch connected to the first latch and the second latch. During functional operation the first latch and the second latch process data, in response to the same read/write clock signal supplied simultaneously to the first read/write clock input and the second read/write clock input. During test operation a skewed test clock signal of an original test clock signal is supplied at different timings to the first latch, the second latch, and the test latch, and a single scan signal is input to the first latch. The single scan signal cascades from the first latch through the test latch to the second latch, and is output by the second latch, within a single cycle of the original test clock signal.

Abstract: The present disclosure relates to example incoming call processing methods and devices. In one example method, a call request message is received by a terminal device from a core network. MT signaling interaction is performed by the terminal device with the core network based on the call request message. A determination is made, by the terminal device, on whether the MT signaling interaction succeeds within a preset duration. Prompt information is sent responsive to a determination that the MT signaling interaction fails within the preset duration.

Abstract: The present disclosure discloses a terminal, a touch control unit, a touchscreen, a screen protector, and an operation detection apparatus and method, and pertains to the field of terminal control. The terminal includes a touchscreen, a controller connected to the touchscreen, and at least one touch control unit, where the touch control unit includes a detection electrode, an induction electrode, and a conducting wire connecting the detection electrode and the induction electrode. The detection electrode is located outside a touch area of the touchscreen, the induction electrode is located in the touch area of the touchscreen, and the induction electrode is coupled to at least one capacitance node on the touchscreen. An existing capacitance node on the touchscreen identifies a touch operation performed by a user on the detection electrode disposed outside the touchscreen, and the terminal is controlled according to the touch operation.

Abstract: A register array includes a plurality of groups of latches. Each of the groups of latches includes a first latch, a second latch, and a test latch connected to the first latch and the second latch. During functional operation the first latch and the second latch process data, in response to the same read/write clock signal supplied simultaneously to the first read/write clock input and the second read/write clock input. During test operation a skewed test clock signal of an original test clock signal is supplied at different timings to the first latch, the second latch, and the test latch, and a single scan signal is input to the first latch. The single scan signal cascades from the first latch through the test latch to the second latch, and is output by the second latch, within a single cycle of the original test clock signal.