13results about How to "Precise absorption" patented technology

The present invention relates to the technical field of sampling for water conservancy projects, and specifically to a detection sampling device and method for water conservancy projects, comprising a water collecting cylinder, a water inlet trough is provided on the front side of the water collecting cylinder, a shielding ring is movably provided on the front side of the water inlet trough, a pressure plate is movably provided in the water collecting cylinder, a first fixed block is movably provided on the upper side of the water collecting cylinder, a fan blade is arranged in an array on the first fixed block, a counterweight block is movably provided on the lower side of the water collecting cylinder, an exhaust mechanism is provided in the water collecting cylinder, and a driving mechanism is provided on the upper side of the water collecting cylinder. The present invention uses a shielding ring that can be switched on and off underwater so that the device can accurately absorb water in a specified water area, and negative pressure will be formed in the water collecting cylinder after the device reaches the specified water area, and water will be quickly absorbed due to the negative pressure after the shielding ring is opened, and after the shielding ring rises, the filter screen will cover the water inlet trough to prevent stones and the like from getting stuck in the water inlet trough.

The invention discloses a tunable wave-absorbing metamaterial and a preparation method and application thereof, and belongs to the technical field of wave-absorbing materials.The method comprises the steps that 1, slurry containing a high-molecular polymer matrix, a wave-absorbing agent and magnetic particles is prepared and magnetized, and magnetic slurry is obtained; (2) designing a porous target metamaterial structure to be printed, and performing magnetic programming on the target metamaterial, so that the pore structure of the target metamaterial is changed and adjustable under the action of a magnetic field; and (3) putting the magnetic slurry into slurry direct-writing 3D printing equipment, printing according to the designed mode, and carrying out thermocuring after printing is completed, so as to prepare the tunable wave-absorbing metamaterial of which the pore structure can be converted under the driving of a magnetic field. The method disclosed by the invention is simple and efficient in steps, overcomes the defects in the aspect of regulating and controlling the electromagnetic wave absorption performance of the existing wave-absorbing material, and has a wide application prospect in the fields of aerospace and communication equipment.

The invention relates to the technical field of soil detection, in particular to a soil trace metal element biological effective state extraction device and a determination method.The soil trace metal element biological effective state extraction device comprises a support, a horizontally-arranged bearing plate is fixedly connected to the center of the support, and cylindrical diffusion pools in a linear array are arranged on the bearing plate; the cylindrical diffusion pool is internally and fixedly connected with a root system simulation pipe, the root system simulation pipe is located in the center of the diffusion pool and is cylindrical, the pipe wall of the root system simulation pipe is provided with holes, the hole diameter is 0.5 mm, and the pipe wall of the root system simulation pipe is wrapped with a layer of filter membrane with the hole diameter of 0.45 mu m. The diffusion and migration process of effective metal elements in the soil and the influence of root exudates on the process can be well simulated, the method is more suitable for extracting the biological effective state of the soil trace heavy metal elements, and accurate measurement of the effective state content of the soil trace heavy metal elements and accurate prediction of absorption of the plant trace heavy metal elements are more facilitated.

The utility model discloses a bottle body outside quick water removing device belongs to bottle body water removing device technical field, including base, telescopic mechanism, telescopic mechanism installs on base, water removing mechanism, water removing mechanism includes the mounting plate fixedly connected on the output of telescopic mechanism, the cantilever end of mounting plate is opened and is equipped with the water removing mouth through, the top of mounting plate department at water removing mouth is equipped with annular air knife, and its bottom fixedly connected with connecting frame, in the utility model, annular air knife can form annular uniform air curtain, and the water on bottle body outside is removed fast, and the accurate absorption of residual moisture on the bottom of bottle body is matched with water absorption sponge, realizes all -round dead angle water removing, and single water removing efficiency is much higher than natural air drying and traditional wiping mode, with the help of electric telescopic link, controller can switch water removing and regeneration mode flexibly, efficient water absorption when daily water removing, and then complete regeneration through extrusion after water absorption sponge saturation, and water absorption sponge does not need to change frequently.

The invention relates to a vibration and noise reduction structural component, an electric driving system and a vehicle, the vibration and noise reduction structural component comprises an acoustic black hole plate layer, and at least one cavity is formed in the acoustic black hole plate layer. And at least one part of the surface of the cavity is a cambered surface. The acoustic black hole plate layer further comprises at least one through hole penetrating through the cambered surface of the cavity and the surface of the acoustic black hole plate layer, the through hole is located at the position of the minimum distance between the cambered surface of the cavity and the surface of the acoustic black hole plate layer, and vibration noise from low frequency to high frequency can be accurately absorbed.

The invention discloses a method for detecting traditional Chinese medicine-derived components in a pinecone extract, which comprises the following steps: orally taking the pinecone extract to a healthy animal, collecting plasma and excrement samples before and after administration, detecting and analyzing by adopting UPLC-MS / MS (Ultra Performance Liquid Chromatography-Mass Spectrometry / Mass Spectrometry), and finding 17 blood-entering components in the plasma sample after administration, including 15 prototype components and 2 metabolites; 12 components are found in an excrement sample after administration, 10 prototype components and 2 metabolites are included, the in-vivo metabolic process and excretion pathway of compounds with large polarity in the pinecones are supplemented, and the application has important significance for guiding clinical application and further research and development of the pinecones.

The utility model provides a notebook computer expansion radiator, including bearing frame, both sides below of bearing frame are fixedly installed with the tray and the converging box respectively, wherein the tray below surface fixedly installed at least two anti -skidding platform, its above middle fixed mounting limit protruding; The converging box installs the cooling fan on, the air current passage that is provided with the air inlet that corresponds to on the inside of bearing frame is opened, is opened in bearing frame and air current passage all with the through -hole, the inside of bearing frame is provided with the positioning slot, the utility model discloses through air current passage, air inlet etc. form closed -loop airflow, accurate suction and exhaust hot air, improve the heat dissipation efficiency, the rubber air current passage prevents scratching and is suitable for wide, and bearing frame and anti -skidding platform etc. multi -dimensional fixed notebook computer, guarantee alignment accurate and use safety.

The invention belongs to the field of automobile door interior trim panels, particularly relates to an automobile plastic automobile door interior trim panel with noise reduction and sealing functions, and provides the automobile plastic automobile door interior trim panel with the noise reduction and sealing functions aiming at the problem that the noise reduction and sealing effects are limited in the prior art, the automobile plastic automobile door interior trim panel with the noise reduction and sealing functions comprises an interior trim panel, and the interior trim panel is formed in a three-layer injection mode. The inner side face of the interior trim panel is sequentially provided with a hollow glass layer and a protective layer, and the interior trim panel, the hollow glass layer and the protective layer are bonded and fixed through sound insulation colloid. The interior trim panel adopts the synergistic noise reduction design that a three-layer composite structure is matched with the hollow glass layer and the multi-material honeycomb noise reduction filter element; compared with a traditional single noise reduction structure, the multi-frequency-band noise isolation and absorption system can effectively improve the noise isolation amount and remarkably improve quietness in a vehicle.

The utility model relates to the technical field of welding machine smoke dust purification, and discloses a carbon dioxide arc welding machine smoke dust purifier which comprises a welding table, a dust collector is fixedly connected to the bottom end of the inner wall of the welding table, opening and closing doors are rotationally connected to the left side and the right side of the front end of the dust collector, and a suction fan is fixedly connected to the inner wall of the left end of the dust collector. A filter screen is arranged on the inner wall of the dust collector, mounting assemblies are fixedly connected to the bottom sides of the left and right ends of the filter screen, a fixed shell is fixedly connected to the bottom side of the right end of the welding table, and an adjusting assembly is rotationally connected to the right end of the inner wall of the fixed shell. According to the smoke dust purifier, the smoke dust purifier can more accurately absorb smoke dust generated in the welding process by adjusting the dust absorption angle flexibly, the good working state of the smoke dust purifier can be kept by replacing the filter screen, and it is ensured that the smoke dust purifier continuously and efficiently filters the smoke dust and harmful particles.

The present invention relates to the field of plant cultivation, and discloses a modular cross-liquid flow plant hydroponic unit, a hydroponic device and a hydroponic system. The modular cross-liquid flow plant hydroponic unit comprises a mounting frame, two planting plates and a plurality of guide plates. The two planting plates are fixed on opposite sides of the mounting frame. The mounting frame and the planting plates enclose a flow cavity. The planting plates are provided with planting holes arranged in an array. Planting cups are provided in the planting holes. The planting holes on the two planting plates are staggered. The guide plates are fixed on the inner side surfaces of the planting plates. Each row of planting holes on the planting plates corresponds to a guide plate. The guide plates are located below each row of planting holes. The guide plates on the two planting plates are staggered and cross-arranged. The present invention can ensure that the root system of the plant is fully and accurately irrigated, and ensure stable and uniform growth of the plant.

The utility model relates to the mobile partition formula heavy truck energy storage heat management unit for being applied to the field of battery replacing equipment, and the scheme takes heavy truck battery replacing station component as main body frame, realizes the efficient cooperation of battery storage, transfer and liquid cooling circulation through reasonable layout, guarantees the smoothness of battery replacing process, the closed loop of liquid cooling heat radiation component constructs, can accurately absorb battery heat and quickly flows back, significantly improves the heat dissipation efficiency, and electric truss drives temperature sensing camera real -time monitoring temperature, timely alarm when abnormal, and the labor -saving roller in U type bottom groove is greatly reduced hollow board pulling resistance and makes disassembly more convenient in the convenient maintenance component, the two -way spring drive valve core design of double valve core self -sealing quick -connect is closed automatically when separating, realizes zero drop, avoids the waste of coolant and equipment damage, improves system safety and environmental protection, and the whole structure gives consideration to efficient heat dissipation, intelligent monitoring and convenient maintenance, provides reliable guarantee for the energy storage management of heavy truck battery replacing.

An oil field thermal power station waste gas treatment device belongs to the technical field of oil field production waste gas treatment service operation and comprises a chimney inner baffle, a waste gas underground pipeline gate, a waste gas cooling system, an induced draft fan, an underground pipeline and an earth surface air outlet. A waste gas underground pipeline gate and a waste gas cooling system are sequentially arranged on a pipeline between the chimney and the induced draft fan, and the induced draft fan is connected with an earth surface air outlet through an underground pipeline. According to the oil field thermal power station, a set of biological treatment device is established, by arranging an underground waste gas emission pipeline and a ground surface air outlet, precise emission and mass absorption of waste gas by ground surface crops and woods are achieved, the pollution and emission problems in the electric energy generation process are solved, migration of carbon dioxide is achieved, and energy is saved. The electric energy really becomes a green and pollution-free novel energy source, and meanwhile, industrial raw materials are provided for carbon dioxide flooding of an oil field.

This invention belongs to the field of distribution box technology and discloses a modular assembled distribution box body, including a top plate, side plates abutting on both sides of the top plate, a back plate fixed to the top plate by a triangular plate, and a bottom plate fixed to the bottom of the back plate. Adjacent plates are interlocked by concave and convex side walls. By setting up sleeves, locking posts, intermediate sleeves and annular locking blocks, a stable frame is formed when expanding the box. Compared with the comparative patent, which cannot be expanded and adjusted, this device uses four sleeves, in conjunction with the intermediate sleeve and the center rod for three-layer sleeve installation, which enhances the continuity of splicing and avoids stress concentration at the connection. Several locking posts are equidistantly connected to the sleeves and the intermediate sleeve in a toothed shape, which effectively prevents the box from shaking. In addition, the box body plates can be disassembled and replaced, modularly installed, and the side plates are reserved with standard interfaces to facilitate the addition of distribution units in the future. This solves the problems of complex installation, difficult maintenance and poor expandability of traditional boxes.