10results about How to "Avoid smooth" patented technology

The utility model belongs to the field of artificial fish reefs, and provides a rectangular pyramid artificial fish reef prefabricated part with asymmetrical staggered holes, which comprises a bottom plate and a rectangular pyramid pedestal. The top of the bottom plate is fixedly connected with the rectangular pyramid pedestal, the rectangular pyramid pedestal is of a rectangular pyramid structure with an inner cavity, the rectangular pyramid pedestal comprises a top surface and four side surfaces, the four side surfaces are inclined surfaces, and the tops of the four side surfaces are fixedly connected with the top surface; through holes are formed in the side faces, and the through holes in the two opposite side faces are arranged in a staggered mode. The holes with different hole diameters are formed, the inside of the reef body is kept communicated with a river water body, and the reef can adapt to the water level variation of a mountain river and meet the requirement for free entering and exiting of fishes with different body heights.

The utility model discloses a pair of luminous children shoes with a positioning function, which relates to the technical field of articles for daily use and comprises soles, vamps are connected onto the soles, and luminous strips are embedded into the side surfaces of the soles; an outer frame is embedded in the sole, a lower frame and an upper frame are slidably connected in the outer frame, the back of the upper frame is connected with a first rack, the end, away from the upper frame, of the first rack is fixedly connected with one end of a spring, the upper frame is extruded to move inwards, the lower frame can be indirectly pushed outwards to move, and a positioning chip and a control module in the lower frame can be adjusted. The smooth surface of the lower frame can be avoided, and the lower frame is not easy to pull outwards; the second telescopic air bags are unfolded to enter the grooves in the upper frame, the sealing performance of connection between the upper frame and the lower frame can be improved, water absorption sponges arranged on the side walls of the second telescopic air bags can absorb water between the grooves in the upper frame and the lower frame through the grooves in the upper frame, and the drying performance is improved.

The invention provides a formation switching obstacle avoidance system and an obstacle avoidance method thereof, and relates to the technical field of robot obstacle avoidance, and the system comprises a formation member classification module, a follower distributed control module, a navigator centralized control module and a real-time obstacle avoidance control module. The formation member classification module is responsible for clearly dividing formation members into two roles of followers and pilots according to specific task requirements of the formation and robot characteristics; and the follower distributed control module is responsible for motion control of a follower, so that the follower can perform self-adaptive adjustment according to the motion of the navigator and the surrounding environment, including adjustment of the position and the speed of the follower. According to the formation switching obstacle avoidance system and the obstacle avoidance method thereof, the characteristics of affine transformation are integrated into formation obstacle avoidance, a new formation obstacle avoidance mode is realized, the formation size can be flexibly adjusted for obstacle avoidance in the obstacle avoidance process, and the integrity of the formation can be well kept in the obstacle avoidance process.

The utility model discloses a pipeline connecting component for air sampling, which comprises a main machine, two placing frames and a supporting rod, the two placing frames are fixedly connected to the left side and the right side of the main machine through bolts, the supporting rod is fixedly connected to the bottom of the main machine, and the left side and the right side of the top of the main machine are fixedly connected with joints. According to the utility model, the main machine, the placing rack, the supporting rod, the joint, the pipeline, the fixing ring, the inserting ring, the inserting groove, the inserting hole, the fixing block, the cavity, the positioning mechanism, the rotating mechanism, a transmission toothed plate, a pushing column, a main gear, a driven gear, a rotating column, a limiting rod, a sliding groove, a supporting sliding column, a butt joint hole, a rubber ring and an inserting rod are matched for use; the problems that when air is sampled through equipment, sampled air needs to be conveyed into a storage vessel through a hose, but if the joint of the hose and the equipment is too loose, the hose is separated from the equipment, and sampling fails are solved.

The utility model discloses a detection device for the bearing capacity of a foundation, which comprises a tester, an interface end and a protection plate, the interface end is fixedly connected to the front side of the tester, the protection plate is rotatably connected to the front side of the interface end through a rotating shaft, the top of the interface end is fixedly connected with a clamping block, and the clamping block is fixedly connected to the top of the interface end. And the top of the protection plate is fixedly connected with a connecting block. According to the wireless static load tester, the tester, the interface end, the protection plate, the clamping block, the connecting block, the insertion hole, the cavity, the positioning mechanism, the adjusting mechanism, the connecting column, the transmission hole, the limiting rod, the slide way, the supporting column and the anti-skid block are matched for use, so that the problem that other instruments need to be connected when the wireless static load tester is used for detecting the bearing capacity of a foundation is solved; the problem that the wireless static load tester is damaged or has a fault due to the fact that the wireless static load tester is used and smoke dust easily enters an interface end of the wireless static load tester in the prior art is solved.

The utility model belongs to the technical field of cryopreservation tubes, and particularly relates to an auxiliary device facilitating opening and closing of a cryopreservation tube, the auxiliary device comprises the cryopreservation tube, a placing frame, a long handle hook and directional clamping tweezers, the cryopreservation tube comprises a tube body and a tube cover, the tube body is detachably connected with the tube cover in a threaded mode, the long handle hook is used for extracting the cryopreservation tube, and the directional clamping tweezers are used for clamping the cryopreservation tube. The directional clamping tweezers are used for opening a cryopreservation tube, and the placing frame is used for placing a tube cover; the cryopreservation tube can be simply and conveniently taken out from the hundred-hole box through the long-handle hook and the extraction ring, the situation that the surface of the tube body is smooth and the tube body is prone to falling off when clamped by tweezers is avoided, and the cryopreservation tube is conveniently opened and closed through the friction design of the directional clamping tweezers and the tube cover clamping lugs; the placing rack is combined with the extraction ring through the hollowed-out holes and the hanging needles, so that the tube cover of the cryopreservation tube is convenient to invert, and the conditions that the tube cover rolls over and is easy to pollute are reduced.

This invention provides a multidimensional collaborative enhanced graph clustering method. It extracts preliminary node embedding representations from each view in multi-view attribute graph data, employs three-level collaborative contrastive learning (3C-CL), calculates contrastive losses at three granular levels (node, group, and global), and obtains a unified embedding representation that integrates multi-view features. Gradient norms are used to dynamically adjust the loss weights of the contrastive losses at each level, and a clustering loss optimization network based on the Student's t-distribution is jointly used to output the final graph clustering assignment result. In sparsely connected views, the receptive field is automatically expanded to capture higher-order neighbor information, while in densely connected views, the aggregation depth is limited to avoid excessive information smoothing. This complementary system of structural information from micro to macro levels significantly improves cross-view semantic consistency, identifies difficult samples with similar attributes to the target node but different potential categories, and achieves more accurate sample selection.

The present application relates to the technical field of chemical nickel plating, and more specifically, to a chemical nickel plating solution and a chemical nickel plating treatment process. According to mass concentration, 6-10 g / L of nickel salt, 18-22 g / L of reducing agent, 2-3 g / L of pyridine, 0.02-0.04 g / L of accelerator, 25-30 g / L of complexing agent, 25-35 g / L of buffer, 0.1-0.4 g / L of stabilizer, 2-5 g / L of composite leveler, 0.06-0.1 g / L of surfactant, 0.1-0.3 g / L of adhesion stabilizer, and 1-2 g / L of nanocomposite metal particles are prepared from raw materials including the following parts by weight. The composite leveler is prepared by mixing hydroxylated propane sulfonic acid pyridinium salt and propargyl alcohol ether in a weight ratio of 1:(0.5-0.8). By adopting the above formula, a chemical nickel plating solution is prepared, which has fast nickel plating speed and good stability, and can form a uniform, dense, wear-resistant and corrosion-resistant nickel layer.

The application relates to the technical field of photoacoustic signal denoising, in particular to a harmful gas monitoring device and method for a smart livestock farm, the method comprising the following steps: collecting a to-be-detected gas in the livestock farm and obtaining a photoacoustic signal of the to-be-detected gas; calculating a feature of the photoacoustic signal affected by a noise superposition signal, so as to determine a penalty factor when the photoacoustic signal is subjected to denoising processing, and realize photoacoustic signal denoising; processing the denoised photoacoustic signal into a photoacoustic signal, so as to detect a harmful gas concentration through a gas sound wave detection module in the harmful gas monitoring device. The application aims to improve the denoising effect of the photoacoustic signal, and finally effectively improve the detection accuracy of the harmful gas monitoring device.

The invention relates to the field of land exploration, in particular to an automatic gradient calculation instrument for comprehensive land improvement, which comprises a telescopic rod, a handbook support, an RTK host and the like, the telescopic rod is composed of an outer pipe and an inner rod. A handbook support is installed on the top of the outer pipe. A handbook is fixed on the handbook bracket; and an RTK host is mounted at the top of the inner rod. A treading pit with the same shape as the lower side of the treading pit is pressed on the slope land surface through the pressing block, a surveying and mapping person walks on the slope by treading the treading pit, slipping and falling are avoided, personal safety and measuring instruments are prevented from being damaged, meanwhile, other tools are not needed, and in the process of holding the surveying and mapping device to move and point, the surveying and mapping person can walk conveniently. The pedal pit is directly formed, the moving efficiency is improved, energy is saved, after the pedal is pressed downwards, the pedal automatically bounces under the counter-acting force of the first elastic piece, lifting force does not need to be applied, energy is saved, and use is convenient.