8results about How to "Shallow depth" patented technology

The invention belongs to the technical field of image processing, and particularly relates to a non-uniform low-illumination image enhancement method and system. The method comprises the following steps: step 1, constructing a network model: constructing a non-uniform low-illumination image enhancement network model, wherein the model comprises a Retinex network, an illumination image enhancement network, a reflection image enhancement network and a multi-scale enhancement network; step 2, preparing a data set: dividing a training set and a test set by using an LOL-v1 data set, and preprocessing the training set and the test set; and performing fine adjustment on the model by the LOL-v2 data set. According to the invention, based on deep learning, an efficient two-way feature enhancement network is designed and is used for improving the performance of image features. On the basis of Retinex network decomposition, an input image is decomposed into an illumination image component and a reflection image component, and the characteristics and channel dimensions of the illumination image component and the reflection image component are modulated respectively, so that the characteristics of a low-illumination image are effectively enhanced. According to the method, the quality and definition of the image can be remarkably improved, and illumination and reflection details are brighter.

The utility model relates to the technical field of water ecological treatment structures, in particular to a slope distributed ditch type sewage ecological treatment system. Comprising transverse ditches and longitudinal ditches, the transverse ditches are closed ditches which are formed in a slope in the horizontal direction and construct an anaerobic environment for sewage treatment, the transverse ditches are distributed at intervals in the slope direction, a water inlet is formed in the transverse ditch located at the highest position of the slope, and a water outlet is formed in the transverse ditch located at the lowest position of the slope; the longitudinal ditches are open ditches which are formed in the slope surface in the slope descending direction and are used for constructing an aerobic environment for sewage treatment, and the two ends of the longitudinal ditches are communicated with the adjacent transverse ditches respectively; and a plurality of longitudinal ditches are arranged between the adjacent transverse ditches. The treatment system is simple in structure, sewage left from the slope can be alternately treated in an anaerobic environment and an aerobic environment through the combined structure of the transverse ditches and the longitudinal ditches, the sewage treatment effect is greatly improved, the manufacturing cost is low, and use is convenient.

This invention relates to a steel for automobile engine pistons and its manufacturing method. The chemical composition of the steel, by weight percentage, is: C: 0.41–0.47%, Si: 0.15–0.35%, Mn: 0.70–1.00%, Cr: 1.10–1.40%, P: ≤0.020%, S: 0.015–0.035%, Mo: 0.17–0.27%, Al: 0.010–0.030%, N: 0.0040–0.0060%, with the balance being Fe and unavoidable impurities. The microstructure consists of ferrite and pearlite, with uniform distribution of ferrite and pearlite structures. The geometric center distance between each ferrite and pearlite structure is 15–30 μm. The hot-rolled hardness of the steel is ≤230 HBW, and the banded structure in the steel is ≤1.5 grade. The product features a narrow range of carbon deviation in cross-section, shallow decarburized layer and microcrack depth on the steel surface, low hot-rolled hardness, good banded structure, and high tensile strength after quenching and tempering.

The present invention provides a water cooling system for a motorcycle engine, belonging to the technical field of engines. It solves the problem of poor cooling effect of existing motorcycle engines. The engine includes a cylinder body and an engine cooler fixedly connected to the cylinder body, the water cooling system includes a cooling pipe, a water pump fixedly connected to the cylinder body, and a cylinder water jacket, a water inlet water jacket and a water outlet water jacket located in the cylinder body, the water outlet pipe of the water pump is respectively connected to the engine cooler and the cylinder water jacket through the water inlet water jacket, the engine cooler and the cylinder water jacket are both connected to the water inlet pipe of the water pump through the water outlet water jacket, the end of the water outlet water jacket close to the cylinder water jacket is connected to the cooling pipe, the cooling pipe is connected to the water inlet pipe of the water pump, and a thermostat is provided at the connection between the water outlet water jacket and the cooling pipe. The water cooling system of the motorcycle engine has the advantage of good cooling effect.

The invention provides a mother battery piece, a battery piece, a preparation method of the mother battery piece and a photovoltaic module. The battery piece comprises a first semiconductor substrate, the first semiconductor substrate comprises a first surface, a second surface and a side surface, the first surface and the second surface are oppositely arranged, the side surface is connected with the first surface and the second surface, and the first surface comprises a central region and a first isolation region arranged around the central region; the first doped semiconductor layer is arranged in the central region; the isolation groove is formed in the first isolation area and surrounds the central area; the tunneling passivation contact structure is at least arranged on the second surface; the first substrate doping layer is arranged on at least part of the side surface; the first passivation layer at least covers the first doped semiconductor layer, the isolation groove and the first substrate doped layer; the battery efficiency can be improved, and the manufacturing cost can be reduced.

The utility model discloses a water outlet nozzle device and a water purifier. The water outlet nozzle device comprises a shell; the central pipe is mounted in the shell; the central pipe is provided with a water inlet, a water outlet and a water flow channel connected to the water inlet and the water outlet; the flow guide part is installed at the water outlet, a flow guide hole and a plurality of drainage holes annularly formed around the flow guide hole are formed in the middle of the flow guide part, the inner diameter of the flow guide hole is smaller than that of the water flow channel, and the depth of the flow guide hole and the depth of the drainage holes in the water flow direction are both not smaller than a preset depth value. According to the water outlet nozzle device, the flow guide part is mounted at the water outlet of the central pipe, the flow guide hole and the drainage holes are formed in the flow guide part, so that the flow guide part forms a plurality of partition walls, water is partitioned by the partition walls when flowing through the flow guide part, and meanwhile, the inner wall of the middle flow guide hole plays a role in drainage and flow stabilization of the middle water; the inner walls of the drainage holes in the peripheral side play a role in drainage and flow stabilization of water on the edge, and water flow splashing is prevented.

A memory structure and a method for forming the same include: providing a substrate; forming a plurality of memory gate structures separated from each other on the substrate, with an isolation groove between adjacent memory gate structures, the memory gate structure including a floating gate layer and a control gate layer located on the floating gate layer; forming an isolation layer in the isolation groove, wherein the top surface of the isolation layer is lower than the top surface of the control gate layer, and the top surface of the isolation layer is higher than the bottom surface of the control gate layer; forming a notch on the exposed sidewall of the control gate layer, wherein the bottom of the notch is lower than or flush with the top surface of the isolation layer; and forming an initial metal silicide layer on the exposed control gate layer surface and the top surface of the isolation layer. By forming a notch at the junction of the isolation layer and the control gate layer, the surface area of ​​the junction is effectively increased, and the accumulation of the material of the initial metal silicide layer at the junction is avoided, thereby forming a sharp protrusion in the subsequent annealing process, which affects the electrical performance of the memory structure finally formed.

This invention relates to the technical field of elevator buffers, and discloses an eddy current damping energy-dissipating elevator buffer. The invention includes an outer buffer tube and a mounting chamber formed within the outer buffer tube. This invention achieves the effect of a novel buffer through a stationary / moving component, making it suitable for elevators at any speed. Its damping force increases with speed, thereby improving the buffering effect. The eddy current damping characteristic enables a rebound-free buffering process. The eddy current damping force moves in the opposite direction to the moving component, preventing the moving component from rising again. Furthermore, the eddy current damping force itself is a dissipative damping force, preventing the generation of reaction force and achieving a smooth buffering process. A reset component ensures smooth buffer movement and post-movement reset. Simultaneously, the buffer stroke is short, and the pit depth is shallow, saving installation space.