Abstract: A multifunctional electric brush head is provided, which includes a control part, an execution part, a fixing component, and a work brush head; the control part rotates relativity to the execution part, the execution part rotates itself; thus, a wide clean range can be achieved. Different work brush heads can be replaced as needed to achieve a better clean result and work brush heads belonging to different fields can be replaced so as to adapt to a wide work scope. The electric brush head can be handheld to clean a dead angle, and it may be installed with a telescopic rod. It further includes a light to illuminate a to-be-cleaned place. The execution part and the telescopic rod are designed to cooperate with each other to achieve a fix and electrical connection effect, allowing the telescopic rod to also control an operation of the electric brush head.

Abstract: A multifunctional electric brush head is provided, which includes a control part, an execution part, a fixing component, and a work brush head; the control part rotates relativity to the execution part, the execution part rotates itself; thus, a wide clean range can be achieved. Different work brush heads can be replaced as needed to achieve a better clean result and work brush heads belonging to different fields can be replaced so as to adapt to a wide work scope. The electric brush head can be handheld to clean a dead angle, and it may be installed with a telescopic rod. It further includes a light to illuminate a to-be-cleaned place. The execution part and the telescopic rod are designed to cooperate with each other to achieve a fix and electrical connection effect, allowing the telescopic rod to also control an operation of the electric brush head.

Abstract: An embodiment of the present disclosure discloses a multifunctional electric brush head including a control component, an execution component, a fix component, and a work brush head; a relative rotation of the control component and the execution component, and a self-rotation of the execution component; thus, a wide clean range can be achieved. Different work brush heads can be replaced as needed to achieve a good clean result and work brush heads belonging to different fields can be also replaced to adapt to a wide work scope. The electric brush head can be handheld to clean a dead angle, and it may be provided with a telescopic rod. It is further provided with a light to illuminate a place to be cleaned. And the execution component and the telescopic rod are designed to cooperate with each other to achieve a fix and electrically connected effect.

Abstract: Disclosed is a vehicle fuel economy evaluation method based on data analysis. The method combines data processing and a fuel model with an enhanced learning mechanism to predict fuel consumption, analyze driving behavior and output an improvement suggestion. With continuous enhanced learning and long-term dynamic improvement, the model will be able to predict economic fuel consumption in an increasingly accurate way, along with specific and intuitive driving behavior suggestions to help drivers to drive economically.

Abstract: A method for detecting the load mass of a commercial vehicle includes the following steps. Step S1, data preprocessing: including data analysis, cleaning, noise processing and other operations for original terminal data of the vehicle. Step S2, identification and analysis of working conditions: further analyzing the working conditions according to the preprocessed data. Step S3, data screening: determining whether data with the working conditions analyzed belong to test data or training data; proceeding to step S5 if the data belong to test data, or proceeding to step S4 if the data belong to training data. Step S4, model construction and combination: constructing a plurality of different basic models through the training data in the step S2, and finally combining the models through training and screening.

Abstract: Provided is a FeCrCuTiV high-entropy alloy powder for laser melting deposition manufacturing and a preparation method thereof, in percent by weight, the composition of the high-entropy alloy powder is: chromium 17-20%; copper 22-25%; titanium 16-19%; vanadium 17-20%; and ferrum 19-22%, wherein by utilizing the solid solution effect of alloying elements such as Ti, V and Cu of the high-entropy alloy, it can effectively alleviate the differences in thermal expansion coefficient, melting point, elastic modulus, etc. of the tungsten/steel or tungsten/copper heterogeneous interface, can reduce the residual stress level at the heterogeneous interface during the laser melting deposition manufacturing process and avoid the precipitation of Laves phase, and can meet the manufacturing requirements of tungsten/steel and tungsten/copper heterogeneous components for fusion reactors.

Abstract: The present invention provides an array substrate, a manufacturing method thereof, and a display panel. The array substrate includes a substrate, a buffer layer, an active layer, a gate insulating layer, a gate layer, an interlayer dielectric layer, a source drain layer, and a planarization layer. The gate insulating layer is formed on the active layer and the buffer layer. The interlayer dielectric layer is formed on the gate layer and the gate insulating layer. The source drain layer is patterned to form a source and a drain, and is connected to the active layer through via holes. The planarization layer in the present invention is easier to fill in.

Abstract: Provided is a FeCrCuTiV high-entropy alloy powder for laser melting deposition manufacturing and a preparation method thereof, in percent by weight, the composition of the high-entropy alloy powder is: chromium 17-20%; copper 22-25%; titanium 16-19%; vanadium 17-20%; and ferrum 19-22%, wherein by utilizing the solid solution effect of alloying elements such as Ti, V and Cu of the high-entropy alloy, it can effectively alleviate the differences in thermal expansion coefficient, melting point, elastic modulus, etc. of the tungsten/steel or tungsten/copper heterogeneous interface, can reduce the residual stress level at the heterogeneous interface during the laser melting deposition manufacturing process and avoid the precipitation of Laves phase, and can meet the manufacturing requirements of tungsten/steel and tungsten/copper heterogeneous components for fusion reactors.

Abstract: The present invention provides an array substrate, a manufacturing method thereof, and a display panel. The array substrate includes a substrate, a buffer layer, an active layer, a gate insulating layer, a gate layer, an interlayer dielectric layer, a source drain layer, and a planarization layer. The gate insulating layer is formed on the active layer and the buffer layer. The interlayer dielectric layer is formed on the gate layer and the gate insulating layer. The source drain layer is patterned to form a source and a drain, and is connected to the active layer through via holes. The planarization layer in the present invention is easier to fill in.