Abstract: A walk-behind working machine includes a traveling assembly, a working assembly, and a parking module. The traveling assembly includes a traveling wheel set and a traveling motor for driving the traveling wheel set. The traveling wheel set includes axles and wheels disposed on the axles. The working assembly includes a working attachment and a working motor for driving the working attachment. The parking module is configured to apply a braking force to the axle.

Abstract: The present disclosure relates to a method for managing cache data, an apparatus, a storage medium and an electronic device, the method includes: acquiring a remaining available space of a solid-state disk for storing cache data; upon the remaining available space being less than a first space threshold, determining a first target fragment group in the solid-state disk that has the greatest garbage proportion, each fragment group including a first number of fragments, and each fragment corresponding to a second number of contiguous logical address spaces in the solid-state disk; and purging the cache data in the first target fragment of the first target fragment group that has the greatest garbage proportion, with this method, the space utilization rate of the solid-state disk can be improved.

Abstract: A method for noise reduction and echo cancellation includes obtaining original audio data, the original audio data including pure speech audio data and noise audio data, generating simulated noisy data based on the pure speech audio data and the noise audio data, and generating target audio data based on the simulated noisy data, the target audio data being used for simulating changes in the original audio data after spatial transmission.

Abstract: Disclosed are a magnetic structure of a voice coil motor, a voice coil motor, a zoom lens and a photographic equipment. The magnetic structure of the voice coil motor is applied on a zoom lens and includes a yoke assembly and a magnetic stripe assembly; the yoke assembly includes two annular yoke bodies provided side by side in the first direction. The central axis of each annular yoke body is provided along the second direction. Each annular yoke body is extended along the third direction. The two annular yoke bodies are provided with two first yoke sections that are close to each other and two second yoke sections that are far away from each other in the first direction.

Abstract: The invention belongs to the technical field of phase-change heat transfer enhancement, and particularly discloses a multifunctional surface structure and a preparation method and use thereof for condensation enhancement. The multifunctional surface structure for condensation enhancement includes a copper substrate. A plurality of Tesla valve passages are parallelly arranged on a surface of the copper substrate. A diamond bump with a flared slope is arranged on the surface of the copper substrate between each side passage and the corresponding main passage. The surface of the copper substrate and surfaces of the diamond bumps and the Tesla valve passages are covered with a composite hydrophobic coating. The heat-transfer performance of the surface structure is remarkably improved.

Abstract: A photonic neural network system comprising a plurality of presynaptic blocks that is configured to receive presynaptic input; an integrating photodetector that is coupled to the plurality of presynaptic blocks, wherein the integrating photodetector is configured to generate a threshold signal based an accumulated presynaptic signal comprising a pair of presynaptic spiking signals; a plurality of postsynaptic blocks, wherein a postsynaptic block of the plurality of postsynaptic blocks comprises (i) an electro-optic modulator that is configured to generate a postsynaptic output and (ii) a postsynaptic micro-ring filter that is configured to generate a feedback signal based on the postsynaptic output; a microcontroller that is configured to (i) initiate the generation of the postsynaptic output based on the threshold signal and (ii) initiate the generation of the variable synaptic weight based on the pair of presynaptic spiking signals and the feedback signal.

Abstract: A computer architecture provides both a parallel memory bus and serial memory bus between a processor system and memory. Latency-tolerant memory access requests are steered to the serial memory bus which operates to increase the available memory bus bandwidth on the parallel memory. The invention also provides integrated circuit computer memory suitable for this application.

Abstract: The present disclosure discloses an energy storage system and a monitoring apparatus for the energy storage system. The monitoring apparatus for the energy storage system includes: a plurality of monitors, each monitor being configured to sample an input electrical signal and/or an output electrical signal of one energy storage device and determine an operating parameter of the corresponding energy storage device based on the input electrical signal and/or the output electrical signal, and each monitor supporting a wireless networking mode; and a display terminal configured to perform a wireless communication with an upper computer, and transmit the operating parameter of the corresponding energy storage device to the upper computer by performing a wireless communication with each monitor when each the monitor operates in the wireless networking mode, to allow the upper computer to display the operating parameter of the corresponding energy storage device.

Abstract: Disclosed is a flow-guide device for an offshore platform, comprising a flow-guide column base, a ballast level control device and a spiral side belt system, wherein the flow-guide column base is located at the bottom of an offshore platform, and multiple flow-guide column bases are arranged symmetrically and distributed in a ring array; the flow-guide column base is rotatably connected to the offshore platform; a ballast compartment is arranged in the flow-guide column base, and the ballast level control device is used for controlling a ballast level in the ballast compartment; and the spiral side belt system is arranged outside the flow-guide column base and used for restraining vortex-induced resonance. The flow-guide column base and the offshore platform can be kept in a relatively fixed state by means of a clamping device, such that the offshore platform is able to rotate synchronously with the flow-guide column base.

Abstract: A push power tool includes a motor, a body, a traveling device, a handle, and an operating device. The handle is connected to the body and configured for a user to hold. The operating device is configured for the user to operate. The operating device includes a first operating member and a second operating member. The first operating member is movable relative to the handle to control the traveling mode of the push power tool. The second operating member is movable relative to the handle to control the output power of the push power tool. In the push power tool, the first operating member includes a first operating portion disposed on a side of the handle facing away from the user, and the second operating member includes a second operating portion disposed on a side of the handle facing the user.

Abstract: A vehicle includes a fuel cell stack arranged to generate power for propulsion, an auxiliary fuel cell stack component, and a processor. The processor, responsive to a crowdsourced average value of an operating parameter of an auxiliary fuel cell stack component of other fuel cell vehicles being different, for a pre-defined power level, than an average value of a same operating parameter of the auxiliary fuel cell stack component by a pre-determined amount, purge the fuel cell stack of nitrogen.

Abstract: An over-temperature protection method and apparatus, a device and a storage medium for a solid-state circuit breaker are provided. A time constant indicative of an association between a temperature rise amount and an operating time of a solid-state circuit breaker operating at a predetermined operating current is determined. A first temperature rise amount of the solid-state circuit breaker is determined based on a temperature rise amount detected before the solid-state circuit breaker is turned off, a duration for which the solid-state circuit breaker is turned off, and the time constant. A second temperature rise amount of the solid-state circuit breaker is determined based on the first temperature rise amount, the time constant, and an operating current detected after the solid-state circuit breaker is turned on. A turn-on state of the solid-state circuit breaker based on a comparison between the second temperature rise amount and a predetermined threshold is controlled.

Abstract: Disclosed in the present application are a microinverter, a photovoltaic system, and a control method. The microinverter comprises a controller, a primary-side H bridge, a transformer, a bidirectional switch bridge arm, and a capacitor bridge arm, wherein an input end of the primary-side H bridge is connected to a direct-current power supply; two output ends of the primary-side H bridge are respectively connected to two ends of a primary side of the transformer, and two ends of a secondary side of the transformer are respectively connected to a midpoint of the bidirectional switch bridge arm and a midpoint of the capacitor bridge arm; the bidirectional switch bridge arm and the capacitor bridge arm are connected in parallel; and the controller is used for switching control modes for the primary-side H bridge and the bidirectional switch bridge arm when the phase of each cycle of a power grid voltage is an odd multiple of 0.25?.

Abstract: Provided is a method for SL communication. The method is performed by a terminal device. The method includes: performing SL transmission on a second channel within a channel set in a case where a first condition is satisfied; wherein the first condition comprises: successful access by the terminal device to a first channel within the channel set using a first channel access mode, and successful access by the terminal device to the second channel using a second channel access mode, wherein the first channel is different from the second channel.

Abstract: A cluster system management method is disclosed. The management method is used on a management node, the cluster system includes the management node and a plurality of compute nodes, the cluster system is responsible for processing service data in a preset area. According to the cluster system management method, the spatial-temporal distribution of the historical service data is analyzed, to obtain the spatial-temporal distribution characteristic of the historical service data, and based on the spatial-temporal distribution characteristic, the preset area is divided into the M sub-areas to achieve balanced data distribution. The compute nodes in the plurality of compute nodes are respectively responsible for processing the service data of the corresponding sub-areas, thereby implementing management based on spatial routing of the cluster system and improving reliability and a scale expansion capability of the cluster system.

Abstract: A processor-implemented method includes obtaining an input image, predicting light source color information of a scene corresponding to the input image and a panoramic image corresponding to the input image using an image processing model, and generating a rendered image by rendering the input image based on either one or both of the light source color information and the panoramic image.

Abstract: A process for the continuous production of cured rubber membrane, the process comprising (i) preparing a continuous stream of curable rubber composition; (ii) forming the continuous stream of curable rubber composition into a continuous green-rubber extrudate; (iii) curing the continuous green-rubber extrudate to form a continuous cured membrane; and (iv) fabricating the continuous cured membrane into rolls of cured membrane, where the curable rubber composition is characterized by at least one of a t90 at 190° C. of from about 1 to about 12 minutes and a T5 at 135° C. of from about 5 to about 20 minutes.

Abstract: A content generation method includes: obtaining input data of a content generation model; uploading the input data to a server via a first routing path; receiving first content returned by the server, where the first content is generated by a first content generation model deployed on the server; and when an abnormality occurs in obtaining the first content via the first routing path, inputting, via a second routing path, the input data to a locally deployed second content generation model, to obtain second content, where a quantity of parameters of the second content generation model is less than a quantity of parameters of the first content generation model.