328results about How to "Easy extraction" patented technology

The invention belongs to the technical field of synthesis of extraction agents, and particularly relates to a preparation method and application of amido diphosphinic acid. The preparation method comprises the following steps: (1) mixing a solvent, primary amine, cyclohexylphosphinic acid and inorganic acid, and heating until the solution is clear and transparent; (2) adding a formaldehyde solution or paraformaldehyde into the clear and transparent solution for reaction; and (3) removing a water phase from the mixture obtained after the reaction in the step (2) is finished, dissolving jelly obtained after the water phase is removed by using dichloromethane, and carrying out washing, rotary evaporation and drying to obtain the amido diphosphinic acid.

This invention relates to a bridge durability testing method, system, and computer storage medium, comprising: preparing standard concrete test specimens and collecting chloride ion concentration data; constructing and training a diffusion flow model based on conditional-flow matching; acquiring chloride ion concentration detection data at multiple discrete depths for representative engineering parts of the bridge concrete under test, and collecting corresponding physical parameters; generating a chloride ion concentration diffusion flow matching field for the engineering parts under test within a continuous depth range; extracting parameters required for bridge durability assessment and substituting them into a preset standard calculation formula to obtain the bridge durability assessment result. The beneficial effects of this invention are: the invention generates a chloride ion concentration diffusion flow matching field without requiring a preset data distribution form, naturally adapting to the unsteady diffusion distribution of chloride ions in bridge concrete structures, characterized by an increase followed by a decrease from the surface to the deeper layers, thus achieving a leap from "point prediction" to "field reconstruction."

This invention relates to the field of storage devices, and more particularly to an intelligent automated warehouse for cardboard box production and storage. The warehouse includes an automated warehouse rack, with a horizontal servo slide fixedly mounted on the top of the rack. A gantry is fixedly mounted on the slide of the horizontal servo slide, and servo lifting slides are fixedly mounted on both sides of the gantry. Each of the two servo lifting slides has a slide base fixedly mounted on its slide. A toothed plate is slidably mounted inside each of the two slide bases. A staggered stacking component is mounted on the side of one toothed plate, and a protective component is mounted on the side of the other toothed plate. A guide frame is provided on the protective component, and a servo pusher cylinder is fixedly mounted on one end of the guide frame. A tray plate is fixedly mounted on the output end of the servo pusher cylinder. This invention facilitates the extraction of cardboard boxes from the middle layer of a stack during storage and ensures the integrity of the bundled cardboard boxes after extraction.

The invention belongs to the technical field of metal separation, and particularly relates to a deep eutectic solvent, a preparation method and application thereof, and a method for selectively extracting lithium from a lithium battery positive electrode material. According to the deep eutectic solvent provided by the invention, nearly 100% selective leaching of lithium is realized in an extremely short time, and Ni, Co and Mn are almost not leached, so that the bottleneck that the rate and the selectivity are difficult to obtain at the same time in a traditional method is broken through; and the process conditions are mild and efficient, are far superior to the traditional process and are more suitable for practical industrial application, and the energy consumption and material consumption are remarkably reduced.

The application discloses a tobacco impurity detection method based on machine vision, which comprises seven steps: 1, establishing an impurity detection data set and a table module; 2, dividing the detection data set into batches; 3, color preprocessing through the table module; 4, after the image processed by the table module is transmitted into the main network for feature extraction; 5, the m feature maps in each batch are further extracted through step-by-step stacking residual blocks; 6, the feature maps are added with attention mechanisms for multiple times, and the feature maps with the same number of channels are obtained through convolution block processing for multiple times; 7, the model loss is calculated to help the model to carry out back propagation, so that the model parameters are updated, and the model most suitable for the tobacco impurity detection task is trained. The method can better extract the feature information in the image and improve the recognition ability of the model to the tobacco impurity; the channel attention mechanism is added, the network can selectively focus on the key information in the image, and the recognition ability of the model to the tobacco impurity is further improved; and the table is constructed, which provides a usable research basis for researchers in the field.

This invention relates to a vacuum extractor that improves extraction performance through a vacuum treatment unit, which improves extraction performance by recovering extracts contained in the air drawn in when a vacuum is generated. The vacuum extractor includes: an extraction chamber for extracting extracts from a raw material using a solvent; a chamber heating unit for heating the extraction chamber with a heat medium to improve extraction performance by heating the raw material; and a vacuum treatment unit for generating a vacuum in the extraction chamber to facilitate extraction of the extract from the raw material, while simultaneously recovering the extracts contained in the drawn-in air using a vacuum pump. The vacuum treatment unit includes: a first cooler for cooling the air and recovering the extracts when a vacuum is generated in the extraction chamber using a vacuum pump; a cyclone tank for generating a cyclone and recovering the extracts contained in the air passing through the first cooler; a second cooler for further cooling the extracts contained in the air passing through the cyclone tank and recovering the extracts; and a recovery tank for storing the extracts recovered from the second cooler.

This invention belongs to the technical field of pharmaceuticals, health foods, and medicines, specifically relating to Russula polysaccharide, its extraction method, and its application in anti-inflammatory, antioxidant, and / or hypoglycemic effects. This invention employs an ultrasound-assisted enzymatic hydrolysis method to extract Russula polysaccharide, thereby significantly improving extraction efficiency, reducing enzyme dosage, protecting the polysaccharide structure, and increasing yield and purity. Furthermore, experimental verification shows that it possesses good anti-inflammatory, antioxidant, and / or hypoglycemic effects, and when combined with Phyllanthus emblica polysaccharide, it synergistically enhances hypoglycemic performance, thus demonstrating significant practical application value.

The utility model belongs to the technical field of bending machines, and particularly relates to an actuating mechanism of a bending machine, which comprises an operation table and a negative pressure pipe, a bending table is arranged at the top of the operation table, a bending machine body is arranged above the bending table, an actuating piece is arranged at the top of the bending machine body, and a bending mechanism is arranged on the negative pressure pipe. A bending pressing block is arranged on the bending machine body, the negative pressure pipe is arranged on the front side wall of the bending pressing block, and an adsorption cavity is formed in the bending pressing block. In the bending machine, an automatic execution material taking mechanism is additionally arranged on the bending machine, so that the automation degree of equipment is greatly improved, automatic material taking after antenna auxiliary materials are bent is achieved, and the working efficiency is improved. Therefore, the automatic processing efficiency of the equipment is improved.

The application provides a composite film and a preparation method and application thereof, and the preparation method comprises the following steps: (1) performing first plasma deposition treatment by using a composite tin target material to obtain a first tin oxide layer; (2) performing second plasma deposition treatment on the surface of the first tin oxide layer by using the composite tin target material to form a second tin oxide layer, thereby obtaining the composite film; wherein the composite tin target material comprises stannous oxide and tin oxide; the oxygen partial pressure of the first plasma deposition treatment is less than the oxygen partial pressure of the second plasma deposition treatment. The application adopts plasma deposition to prepare an electron transport layer, introduces trace oxygen vacancies by controlling the oxygen content in the target material and the oxygen partial pressure in the deposition process, activates interface carriers, promotes electron extraction, and improves the photoelectric performance and stability of the composite electron transport layer.

This invention discloses a method for predicting urban rail transit passenger flow based on multimodal information fusion. First, feature vectors of urban points of interest are obtained. Then, a directed graph of rail transit stations and the positional relationship between rail transit stations and points of interest are constructed to extract feature vectors of rail transit stations. Social media text from various time periods is crawled to extract public travel interest feature vectors. Then, a multi-head cross-attention model is used to fuse the public travel interest feature vectors, rail transit station feature vectors, and historical passenger flow feature vectors. Finally, an LTSM network is used to predict the passenger flow feature vector for the next time period. This invention integrates urban point of interest features and social media text features to predict urban rail transit passenger flow, improving prediction accuracy.

The utility model discloses a steel sheet pile supporting structure which is applied to the field of steel sheet piles and comprises a first pile plate, a second pile plate is arranged on the back face of the first pile plate, fixing frames are connected to the opposite sides of the first pile plate and the second pile plate in a bolted mode, and connecting blocks are arranged in the fixing frames. And two screw rods are arranged at the top of the connecting block in a penetrating mode, the two ends of each screw rod are welded to the interior of the fixing frame, the bottom ends of the surfaces of the screw rods are in threaded connection with adjusting nuts, and through grooves are formed in the first pile plate and the second pile plate correspondingly. The device can have the height adjusting function, can make up the distance difference generated when a steel sheet pile is driven in, facilitates installation and fixation of profile steel by personnel, is good in flexibility, can conveniently pull out a pile plate outwards, is simple and convenient to operate, can prevent sand or fluid from passing through, facilitates penetration of a hook for leveraging force, and is high in practicability.

This invention discloses a method and apparatus for accelerating distributed training of large AI models based on model prediction. The method includes: constructing a hierarchical parameter dataset; training a prediction model for predicting model parameters of a target model using an evaluation method based on prediction results; computing nodes updating the model parameters of some layers of the target model and then pushing them to a parameter server; on the parameter server, aggregating the received model parameters and predicting the model parameters of the remaining layers of the target model using the prediction model; concatenating the predicted and aggregated model parameters into a complete model parameter set and pushing it to all computing nodes; and replacing the local model parameters with the received complete model parameter set. The prediction model adopts a "convolution + channel attention mechanism + pooling" structure. This invention can significantly reduce communication volume without introducing a large amount of computational overhead while maintaining the accuracy of the target model.

The invention relates to the technical field of water quality monitoring, in particular to an unmanned aerial vehicle water quality sampling device for environmental monitoring, which comprises an unmanned aerial vehicle body, a lifting assembly is arranged at the bottom end of the unmanned aerial vehicle body, the lifting assembly comprises a mounting plate mounted at the bottom end of the unmanned aerial vehicle body, a winder body is mounted at the bottom end of the mounting plate, and a sampling assembly is arranged at the bottom end of the lifting assembly. The sampling assembly comprises a sampling bin installed at the bottom end of the connecting rope, a plurality of water inlet holes are formed in the top end of the sampling bin in a penetrating mode, a bearing round frame is fixedly connected to the bottom end of the sampling bin, multiple sets of sliding round frames are slidably clamped to the inner end of the bearing round frame, and lower pressing blocks are fixedly connected between the sliding round frames located at the lower end. The top end of the pressing block slidably penetrates through a sliding rod at the top end of the sampling bin, the top end of the sliding rod is fixedly connected with a filter screen plate, and the bottom end of the filter screen plate is fixedly connected with a plurality of conical rods. By means of a linkage structure of the sliding round frame, the pressing block and the conical rods, integration of water entry resistance reduction, accurate sampling and sealing pollution prevention of the sampling bin is achieved.

The application discloses a kind of semi-automatic coffee machine extraction pressure keeping mechanism including powder pressing handle, transmission gear, lifting frame with vertical rack and fixed ratchet disc;Brewing powder pressing head is installed at the lower end of lifting frame;Powder pressing handle is connected with transmission gear, and transmission gear is engaged with vertical rack, so that when powder pressing handle drives transmission gear, brewing powder pressing head moves up and down with lifting frame;Ratchet disc is provided with one-way ratchet by blocking surface and inclined sliding surface, and lock slot is formed between adjacent one-way ratchet;Control key and lock pin are provided on powder pressing handle, and control key controls lock pin to enter or exit lock slot;During the rotation of powder pressing handle, lock pin enters lock slot and jumps on continuous multiple inclined sliding surfaces with rotation;Blocking surface prevents reverse rotation of powder pressing handle to complete self-locking;It can be rotated smoothly in positive direction, and direction is automatically locked without additional operation, and individualized accurate selection of pressure can be realized.

This application provides a coal mine gas extraction device, relating to the field of gas extraction technology. It includes a mounting frame, a mounting plate, a drill rod, an extension rod, a lifting assembly, and a rotating assembly. The lifting assembly is mounted on the mounting frame and is used to move the mounting plate up and down. The extension rod is rotatably mounted on the mounting plate via bearings. The rotating assembly is mounted on the mounting plate and is used to rotate the extension rod. The drill rod is slidably sleeved on the extension rod. A first locking assembly is provided between the top of the extension rod and the drill rod, and a second locking assembly is provided between the bottom of the extension rod and the drill rod. The interiors of both the drill rod and the extension rod are hollow, and a through hole is provided at the bottom of the drill rod. By using hollow extension rods and drill rods, and inserting extraction pipes into the extension rods and drill rods, friction between the extraction pipes and the borehole wall is prevented.

The invention relates to the technical field of wastewater treatment, and discloses a phenol-ammonia wastewater extraction parameter design method and device.The method comprises the steps that an extraction model between a phenolic compound and an extraction agent is established, and an extraction technological process simulation system is established based on the extraction model and the extraction process of phenol-ammonia wastewater; selecting a plurality of extraction parameters from the extraction process flow simulation system as decision variables, and setting a plurality of target optimization directions to construct a multi-target optimization model; solving based on an extraction process flow simulation system and a multi-objective optimization model to obtain a Pareto optimal solution set; and selecting a target solution from the Pareto optimal solution set according to a target demand, and designing phenol-ammonia wastewater extraction parameters based on the target solution. By means of the scheme, better design of the phenol-ammonia wastewater extraction parameters can be achieved, the phenol-ammonia wastewater extraction parameter values better meeting actual requirements can be screened out, and therefore the extraction effect of the phenol-ammonia wastewater can be improved.

The application belongs to the technical field of oil exploitation, and is especially a sand prevention well completion structure of an easily-pulled-out downhole sand prevention pipe column, which comprises a loose sandstone formation, an isolation body filling layer and a sand prevention pipe column, an inner part of the loose sandstone formation is provided with a well mouth, the sand prevention pipe column is arranged in the inner part of the well mouth, an inner part of the sand prevention pipe column is provided with the isolation body filling layer, an upper end of the well mouth is provided with a positioning mechanism, an upper end of the positioning mechanism is provided with a sealing mechanism, the positioning mechanism comprises a seat ring, a limiting plug and a positioning sliding cylinder, the bottom end of the seat ring is fixedly connected with the limiting plug, the limiting plug is inserted into the upper end of the well mouth, and the inner part of the limiting plug is provided with the positioning sliding cylinder, the positioning mechanism and the sealing mechanism are arranged, the downhole running and pulling-out operation of the sand prevention pipe column relative to the well mouth is facilitated, the upper part of the isolation body filling layer can be sealed and protected, and the use effect is better.

This utility model relates to the field of medical equipment technology, and in particular to an integrated centrifuge tube preparation method. It includes a centrifuge tube body and a cap. The centrifuge tube body has an opening at its top, on which the cap can be fitted and sealed. A second Luer connector is eccentrically positioned on the cap. The centrifuge tube body has a lower dispensing channel at its bottom. The lower dispensing channel includes an interface horizontally positioned at the bottom of the centrifuge tube body, which communicates with the inner cavity of the centrifuge tube body. One end of a right-angle connector is sealed and connected to the interface, and the other end of the right-angle connector is sealed and connected to one end of a vertically positioned dispensing tube. The other end of the dispensing tube can be sealed and connected to a first Luer connector, which is located on one side of the cap. This utility model has a compact and reasonable structure, is easy to operate, and the lower dispensing channel at the bottom of the centrifuge tube body allows for the extraction of the lower layer liquid while retaining the upper layer liquid, facilitating the extraction of the lower layer liquid.

The utility model relates to the technical field of wrenches, in particular to a dual-purpose wrench with an anti-skidding function, which comprises a first wrench body, a first opening and a second opening are respectively arranged at two ends of the first wrench body, a wear-resistant alloy strip is fixed on the surface of the first opening, a rubber plug strip is embedded on the surface of the second opening, and a rubber clamping piece is arranged on the surface of the first wrench body. The rubber clamping piece can be plugged into the opening II after being folded; the dual-purpose wrench with the anti-skid function has the advantages that the multiple abrasion-resistant alloy strips are fixed to the surface of the first opening of the wrench body to form a rib structure arranged in the circumferential direction, the abrasion resistance of the first opening is improved, and the wrench can be matched with nuts with different contours. Meanwhile, the friction force between the wrench and the nut is remarkably improved due to the anti-skid effect of the wear-resistant alloy strip, and stable gripping force can be kept even in a wet, greasy or corrosive environment.

This invention relates to the field of mechanical equipment fault detection technology, and more particularly to a five-coil differential electromagnetic induction online monitoring system for oil abrasive particles. The system includes a five-coil oil abrasive particle detection sensor, a signal acquisition module, a signal processing module, a power supply module, and a high-frequency excitation module. The five-coil oil abrasive particle detection sensor comprises a first excitation coil, a second excitation coil, a third excitation coil, a first induction coil, and a second induction coil, all connected in series. This invention is less susceptible to interference from external environmental magnetic fields such as geomagnetism and mechanical vibrations, meeting industrial requirements. The sensor structure can be designed for different pipe diameters according to the oil circuit of the mechanical equipment, making it suitable for monitoring oil circuits with different throughputs, thus solving the problem of insufficient sensitivity in existing inductive monitoring technology for large-diameter pipelines.

The utility model relates to the technical field of water resource utilization, provides an efficient rainwater collection and storage integrated device for desertification control, and aims to solve the technical problems that traditional rainwater storage equipment is high in transportation and installation cost and difficult to adapt to terrain expansion. The device is composed of a plurality of linearly arranged storage tanks and matched collectors, storage cavities are formed in the storage tanks, connecting outer pipes and connecting holes are arranged on the two sides of each storage tank respectively, and connecting inner pipes are fixedly arranged in the storage tanks and communicated with the connecting outer pipes; the bottom of the collector is communicated with the storage tank through a connecting pipe. The multiple storage tanks are inserted into the connecting holes of the adjacent storage tanks through the connecting outer pipes and connected with the connecting inner pipes in a sleeved mode to achieve communication, and rainwater sequentially flows through the storage cavities and is stored in the tail end tank body. The top splicing face of the storage tank is provided with a combined threaded half groove which is locked and connected through a threaded cover, and a tail end tank body connecting hole is provided with a tail end threaded cover for sealing. Flexible expansion and rapid disassembly and assembly of the storage units are achieved through the modular connection structure, and the applicability of equipment is effectively improved.

The invention belongs to the field of space target imaging, and discloses a space target three-dimensional reconstruction method for inhibiting dark color interference through combination of brightness and transparency, which is used for solving the problems of poor imaging quality and inaccurate pose estimation of a space target. According to the method, multiple requirements of improving the quality of an input image, adjusting a pose and training a three-dimensional model are jointly completed, and low-quality imaging of an incomplete imaging system is preprocessed based on lucky imaging; and then, dense feature points are extracted by using a pre-training network based on no detector, estimation of a three-dimensional initial point cloud and an initial pose of a camera is carried out, and pose joint adjustment is carried out by combining RANSAC and Bundle AdJustlement. During training, an MLP-based optimizer is used for calculating the deviation of pose adjustment, meanwhile, training of parameters of three-dimensional Gaussian primitives is carried out, and after various physical constraints are added, a one-stop assembly line can be implemented. According to the method, the good basic shape and the sharp edge of the model are kept, the good anti-noise capability is achieved, and meanwhile the real-time performance and the robustness are achieved.

The utility model relates to the technical field of butterfly orchid tissue culture, in particular to a seed germination device for butterfly orchid tissue culture, which comprises a connecting box, a guide groove and supporting legs, the outer side of the connecting box is movably connected with a sliding plate, the outer side of the connecting box is fixedly connected with a storage box, the outer side of the connecting box is fixedly connected with a water spray pipe, and the water spray pipe is fixedly connected with a water outlet. An air conveying pump is fixedly connected to the outer side of the connecting box, an air spraying opening is fixedly connected to the outer side of the connecting box, and by starting a pushing hydraulic rod, a containing disc is moved out of the device, the containing disc is pulled out, seeds are placed in the containing disc, the containing disc is placed in a fixing shell, and the fixing shell is pushed into the device; in the seed placement and germination process, air in the seeds is replaced by starting an air conveying pump, water in a storage box is conveyed to a water spraying pipe by starting a conveying pump, the water is discharged from a water spraying head, and air and the seeds are humidified through hammering of the air.

This invention discloses a method for methane extraction and closed-loop carbon fixation in coal seams using hot flue gas-driven combustion-explosion fracturing. First, each horizontal branch well is divided into sections, and perforations are constructed in each section. Then, CH4 is used in each section. 4 Combustion-explosive fracturing technology utilizes in-situ synergistic combustion-explosion reactions to generate gas impact perforation fractures, allowing them to further develop and expand into a fracture network. Then, hot flue gas is sequentially injected into each horizontal branch well. Due to its high temperature, the hot flue gas promotes CH4 (chemical oxygen demand) in the coal seam. 4 Gas desorption, and CO in hot flue gas 2 SO 2 NO 2 Due to its competitive adsorption advantage, it can displace a large amount of CH4 adsorbed in extra-thick coal seams. 4 Gas, then hot flue gas and CH 4 The gas continues to be utilized in a closed loop, improving the efficiency of coal seam methane extraction while simultaneously achieving hot flue gas sequestration. Through this continuous closed-loop utilization process, the efficiency of methane combustion and fracturing, hot flue gas sequestration, and CH4 extraction in various areas of extra-thick coal seams is maximized. 4 Extraction efficiency.

The application provides a card reader card insertion structure and relates to the technical field of card readers. The card reader card insertion structure comprises a card reader main body, a slot is arranged in the card reader main body, a socket is arranged on the right side wall of the card reader main body, the socket is arranged in correspondence with the slot, a sliding groove is arranged in the card reader main body and is arranged on the upper and lower sides of the slot, a sliding rod is fixedly connected between the left and right inner walls of the sliding groove, and a sliding block is slidably connected to the circumferential surface of the sliding rod. The sliding groove, the sliding rod, the sliding block, the first compression spring, the limiting groove, the rotating rod, the connecting plate, the rotating hole, the limiting block, the plugging plate and the sealing gasket are arranged, the elastic force of the first compression spring is used to control the sliding block to drive the connecting plate to move, thereby driving the plugging plate and the sealing gasket to move, the sealing gasket blocks the socket, granular objects or paper are prevented from entering the slot, and the card reader can be normally used during use.

The utility model discloses a pesticide extraction device for pesticide production, which relates to the technical field of pesticide production and comprises a crushing tank, an extrusion box is fixedly communicated with the crushing tank, an opening is arranged on the bottom surface of the crushing tank, a drainage cover is mounted at the opening, and an extrusion component is arranged in the extrusion box. And the extrusion assembly is arranged in the crushing tank and used for extruding the medicinal materials entering the extrusion box to form medicine liquid and medicine residues, and the crushing assembly is arranged in the crushing tank and used for crushing the medicine residues entering the crushing tank into medicine residues. The device is reasonable in design structure, through the synergistic effect of the extrusion assembly and the smashing assembly, the first extrusion wheel and the second extrusion wheel primarily extrude medicinal materials to extract medicine liquid, residual medicine residues are smashed into fine residues through the smashing fan blades, and the centrifugal filter barrel structure is adopted; residual juice in the medicine residues is thoroughly separated through centrifugal force generated by high-speed rotation under driving of a third motor, the extraction effect is further optimized, and it is ensured that medicine liquid is fully released.

The application provides a kind of complex environment under image enhancement and passage cost chart generation method and system, applied to image processing technical field, the method obtains original environment image and standardization processing, based on local gray variance self-adapting determination cutting limit threshold, combined with brightness protection weight generation enhanced image;Extract boundary mutation, surface roughness, local contrast and shadow risk and other multi-response characteristics, determine candidate high-cost area and generate boundary uncertain response;Fusion generates pixel-level passage cost chart above-mentioned response, and combined with camera calibration parameter and posture information projection to ground coordinate system, output spatial passage cost chart and passage area result.The application can reduce the influence of complex illumination, shadow and texture change on passage area extraction, improve the continuity and stability of passage risk representation.

This invention discloses a tea paste brewing process and its processing equipment, belonging to the field of tea paste processing technology. It includes a mounting base with a lifting assembly and a sealing cover fixedly mounted on it. A brewing pot is mounted on the mounting base, containing a fine mesh screen and a coarse mesh screen. A feed inlet is fixedly connected to the outer side of the coarse mesh screen, and a second feed inlet communicating with the interior of the fine mesh screen is fixedly connected to the outer side of the fine mesh screen. Both feed inlets are covered. This invention allows the fine and coarse mesh screens to be moved out of the brewing pot for draining after steeping. The fine and coarse mesh screens prevent the tea leaves from being scooped out, and the double filtration ensures more thorough tea residue removal, saving labor, shortening processing time, and ensuring safety and reliability during the scooping process, thereby improving the efficiency of tea paste brewing.