1005results about How to "Increase load" patented technology

The invention relates to the technical field of micro-grid distributed control, in particular to a micro-grid cluster distributed control method and system based on information interconnection. The method comprises the following steps: identifying a micro-grid cluster in a region, and extracting a plurality of micro-grid nodes; obtaining a plurality of microgrid operation state parameters; performing filtering standardization processing on the plurality of micro-grid operation state parameters, and constructing a micro-grid time sequence load change curve; discrete wavelet transform is carried out on the micro-grid time sequence load change curve, load fluctuation frequency trend mining is carried out, and micro-grid load fluctuation frequency trend characteristics are generated; carrying out data stream encapsulation on the load fluctuation frequency trend characteristics of the micro-grid, and constructing a cloud environment distributed computing framework; carrying out dynamic load demand calculation on the plurality of micro-grid nodes based on a cloud environment distributed calculation framework so as to obtain multi-period load demand prediction data of each micro-grid; according to the invention, high-efficiency microgrid cluster control with high energy utilization rate is realized.

A magnetic adsorption wall-climbing walking mechanism for a robot comprises a main frame, a first mounting base, a first permanent magnet adsorption set, a round pipe and a driving wheel set, the first mounting base is fixed to the main frame, the first permanent magnet adsorption set is mounted on the first mounting base, the magnetic adsorption face of the first permanent magnet adsorption set faces the wall-climbing face, and the round pipe is fixed to the main frame; the two driving wheel sets are installed at the two ends of the circular pipe through fixing components respectively, and the width between the two driving wheel sets can be adjusted. Each driving wheel group comprises a connecting base, a driving wheel, a motor seat, a driving motor, a second mounting seat and a second permanent magnet adsorption group, the second permanent magnet adsorption group is mounted on the motor seat between the two driving wheels through the second mounting seat, and the permanent magnet adsorption group comprises a yoke and a plurality of permanent magnets arranged in a Halbach array. The weight and the size of the magnetic adsorption group can be reduced, the loading capacity and the adsorption reliability of the robot are improved, the chassis strength is prevented from being influenced and the motor power is prevented from being consumed due to excessive residual magnetic adsorption force, and the adaptability is high.

The invention relates to the technical field of insulating materials, in particular to a flame-retardant high-strength insulating material and a preparation process thereof. The insulating material comprises the following components in parts by weight: 50-60 parts of polyvinyl chloride, 20-40 parts of crosslinked polyethylene, 10-15 parts of an ethylene-vinyl acetate copolymer, 20-40 parts of a flame retardant, 5-15 parts of talcum powder, 10-20 parts of calcium carbonate, 6-12 parts of a compatilizer and 3-8 parts of an antioxidant. The flame retardant is prepared by taking ammonium polyphosphate as an acid source, polydopamine as a charring agent and modified graphene oxide as a reinforcing agent, the flame retardant is added into polyvinyl chloride and a crosslinked polyethylene insulating material base material, and combined with the combined action of an ethylene-vinyl acetate copolymer, talcum powder, calcium carbonate, a compatilizer and an antioxidant, the flame retardant property of the insulating material base material is improved, and the flame retardant property of the insulating material base material is improved. The prepared insulating material not only has excellent mechanical property, but also has excellent flame retardant property, so that the service life of the material is prolonged.

The invention relates to the technical field of network load prediction and scheduling methods, in particular to a mobile communication network load prediction and scheduling method and system based on deep learning, and the method comprises the steps: obtaining data from a plurality of edge computing nodes, including base station data, user behavior data and environment parameter data; constructing a multi-layer model for load prediction and resource scheduling based on cooperative work of the central system and the edge system; carrying out feature extraction by utilizing a dynamic feature embedding transformation module in the edge computing node; recursive spatial-temporal feature processing is carried out based on the optimized features; generating a network load prediction result through the prediction model; and resource scheduling optimization is performed through a reinforcement learning model based on a prediction result, and multi-dimensional features are nested and mapped to a high-dimensional feature space through dynamic feature embedding of original data. And the nested features are further optimized through a time-varying collaborative tensor optimization algorithm, so that the spatial relevance between different base stations can be enhanced while complex nonlinear features are captured.

The invention provides an atomizing agent containing stem cell exosomes as well as a preparation method and application of the atomizing agent, and belongs to the technical field of exosomes. Ferroferric oxide magnetic particles are prepared, the surfaces of the ferroferric oxide magnetic particles are modified through tannic acid, berberine and adriamycin are loaded, then the ferroferric oxide magnetic particles and the exosome secreted by adipose-derived mesenchymal stem cells are mixed, incubated and centrifuged, the mixture is added into normal saline, uniform ultrasonic dispersion is conducted, and the atomizing agent containing the stem cell exosome is prepared. The prepared atomizing agent containing the stem cell exosome is simple in preparation method and wide in raw material source, the prepared atomizing agent directly enters the lung through spray administration, the unique performance of magnetic targeting drug delivery is achieved, drugs are released in a targeted and fixed-point mode, the drug effect is improved, and the effects of efficiently promoting tumor cell apoptosis and resisting lung cancer and pneumonia are achieved.

The invention discloses a glucose response type insulin delivery system as well as a preparation method and application thereof, and belongs to the technical field of biological materials. The glucose response type insulin delivery system provided by the invention comprises a delivery carrier and a bioactive component encapsulated in the carrier, the delivery carrier is a metal polyphenol network formed by carrying out coordination reaction on epigallocatechin gallate and metal ions; the bioactive components comprise glucose oxidase, catalase and insulin. The glucose response type insulin delivery system provided by the invention can adjust the release of insulin according to the concentration of glucose in the surrounding environment, so that the blood glucose is maintained at a normal level.

The invention belongs to the technical field of electrochemical energy storage, and relates to a nitrogen-doped MXene loaded VCo double-monatomic catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: adding a nitrogen-containing precursor into at least one layer of MXene suspension, and uniformly stirring to obtain a suspension; respectively dissolving a cobalt-containing compound and a vanadium-containing compound in water to prepare a cobalt-containing compound solution and a vanadium-containing compound solution, adding the cobalt-containing compound solution and the vanadium-containing compound solution into the suspension, and performing stirring, ultrasonic treatment and crushing to obtain a mixed solution; freeze-drying the mixed solution to obtain a precursor; and carrying out heat treatment on the precursor, and washing, centrifuging and drying the obtained powder to obtain the nitrogen-doped MXene loaded VCo double-monatomic catalyst. According to the invention, VCo double monatomic atoms are anchored on the surface of the few-layer MXene, so that the MXene serving as a sulfur carrier of the room-temperature sodium-sulfur battery can effectively adsorb and catalyze conversion of sodium polysulfide, and the room-temperature sodium-sulfur battery with excellent cycle life and capacity is obtained.

The invention discloses a preparation method of a pH and light dual-response drug-loaded antibacterial nano-material for plants. The preparation method specifically comprises the following steps: loading a drug into polyphenol hybridized zinc-based metal organic framework nano-particles in situ through stirring to obtain drug-loaded polyphenol hybridized ZIF-8 nano-particles; a calcium peroxide coating is synthesized in situ on the surface of the prepared polyphenol hybridized ZIF-8 nano-particle loaded with the medicine to obtain the pH and light dual-response medicine-loaded antibacterial nano-material for the plant. According to the invention, the photocatalytic performance and drug loading capacity of ZIF-8 are improved, so that the actual application range of the polyphenol hybrid nano material is wider; the preparation method is simple, low in cost and price, free of complex conditions and suitable for large-scale production.

The invention relates to the technical field of supported metallocene catalysts, in particular to a supported metallocene catalyst additive as well as a preparation method and application thereof. The supported metallocene catalyst additive has the following structure: # imgabs0 #, R is selected from C1-C10 alkyl groups, R1 and R3 are selected from alkyl groups and adamantyl groups and are located at ortho-para positions of-OH, R2 is selected from C1-C10 alkyl groups and cycloalkyl groups, and R'is selected from alkyl groups. The additive can greatly retain the catalytic activity and copolymerization performance of a metallocene catalyst, improve the metal loading capacity and catalytic activity, and reduce the dosage of a traditional cocatalyst MAO.

The invention discloses a preparation method of an antibacterial PEEK material for bone implantation. The preparation method comprises the following steps: carrying out sand blasting treatment on the surface of a PEEK sample; immersing the sandblasted PEEK sample into a mixed solution containing concentrated sulfuric acid and hydrogen peroxide, and carrying out chemical sulfonation treatment; immersing the sulfonated PEEK sample into a dopamine solution, so that dopamine is oxidized and self-polymerized on the surface to form a PDA coating; immersing the PEEK sample with the PDA coating into an antibacterial drug solution, so that the antibacterial drug is loaded on the surface; carrying out heat treatment on the PEEK sample loaded with the antibacterial drug; thoroughly cleaning the sample, removing uncombined antibacterial drug molecules, and drying; through sand blasting treatment and sulfonation treatment, the surface roughness and hydrophilicity of the PEEK material are remarkably improved, and favorable conditions are provided for adhesion of a dopamine coating and an antibacterial agent; due to introduction of the dopamine coating, the biocompatibility and the adhesion of the material are enhanced, and the dopamine coating also serves as an effective carrier of antibacterial drugs, so that the antibacterial function is maximized.

The invention provides a copper-nickel alloy catalytic electrode and a preparation method and application thereof. The copper-nickel alloy catalytic electrode comprises a foamed nickel substrate and a copper-nickel alloy vertically loaded on the surface of the foamed nickel substrate, the molecular formula of the copper-nickel alloy is Cu < 0.81 > Ni < 0.19 >, and the copper-nickel alloy is of a dendritic nanostructure. The preparation method comprises the following steps: adding copper sulfate, nickel sulfate and ammonium sulfate into water, and uniformly stirring to obtain an electrolyte; taking a foamed nickel substrate as a working electrode, taking a saturated silver-silver chloride electrode as a reference electrode, taking a platinum sheet or a graphite rod electrode as a counter electrode, and applying constant current density to the working electrode to obtain a preset electrode; and alternately cleaning the preset electrode by using ethanol and distilled water, and carrying out vacuum drying to obtain the copper-nickel alloy catalytic electrode. According to the prepared copper-nickel alloy catalytic electrode, the copper-nickel alloy is in a dendritic morphology, has abundant active sites and a high specific surface area, and has excellent catalytic activity and stability in hydrogen preparation by coupling hydrogen evolution reaction for synthesizing adipic acid through electro-catalysis of cyclohexanone.

The invention provides a platinum-based alloy catalyst, a preparation method thereof and a fuel cell. The method comprises the following steps: carrying out reduced pressure ball milling treatment on a non-metallic element doped carrier material, a platinum-based precursor and a transition metal-based precursor to obtain a platinum-based alloy catalyst precursor material; and carrying out reduction calcination treatment on the platinum-based alloy catalyst precursor material to obtain the platinum-based alloy catalyst. According to the preparation method, the platinum-based alloy catalyst with controllable particle size, good oxygen reduction reaction (ORR) performance and stability can be prepared without using an organic solvent by adopting a method of combining reduced pressure ball milling and reduction calcination treatment.

The invention provides a silicon carbon material with a multilayer coating structure and a preparation method and application thereof, and relates to the technical field of battery materials. The silicon-carbon material with the multi-layer coating structure comprises a porous carbon core body, and a first carbon layer and a second carbon layer which sequentially coat the porous carbon core body from inside to outside, and the porous carbon core body comprises porous carbon and nano silicon particles deposited on the surface and in pore channels of the porous carbon; and a conductive nano carbon filler is dispersed in the second carbon layer. The silicon carbon material with the multilayer coating structure provided by the invention is used as a lithium ion battery negative electrode material, and has excellent specific capacity, coulombic efficiency and cycle performance. The result of the embodiment shows that when the silicon carbon material with the multi-layer coating structure is applied to the lithium ion battery, the first reversible capacity is 1882-2071 mAh / g, the first coulombic efficiency is 92.6-94.1%, and the capacity retention ratio of 100 cycles is 95.3-97.7%.

The invention relates to the technical field of porous adsorption materials, and discloses a porous adsorption material for organic waste gas purification and a preparation method thereof. Comprising the following steps: ultrasonically dispersing modified titanium carbide MXeneC in ethylene glycol, adding a palladium acetate solution, uniformly stirring, heating to 150-155 DEG C, reacting for 2-2.5 hours, cooling to room temperature, filtering, washing with deionized water and ethanol, and performing vacuum drying at 70 DEG C for 12 hours to obtain the porous adsorption material.

The invention provides a flow-state solidified soil modifier and a preparation method thereof, and belongs to the technical field of modifiers. The adhesive is prepared from the following raw materials in parts by weight: 20-40 parts of a modified glue solution, 4-7 parts of an active material, 15-25 parts of a micro-expansion material, 1-2 parts of an exciting agent and 2-4 parts of an auxiliary agent. Soil solidified by the fluid solidified soil modifier has good mechanical strength, small mixing amount, low cost, convenience in construction, high early strength and later stable strength of the soil, good water retention and water resistance, small strength change after the soil encounters water, and the active material has good stability, low cost and high enzyme loading capacity, so that the fluid solidified soil modifier has good application prospects. The method improves the catalytic ability of the enzyme, is safe and non-toxic, is low in later maintenance cost, can be repeatedly used, has heavy metal pollution repair ability, can degrade heavy metals and reduce the use amount of chemical degradation elements, and has wide application prospects.

The invention discloses an antibacterial finishing agent containing quaternary ammonium salt chitosan and tannic acid as well as a preparation method and application of the antibacterial finishing agent. The antibacterial finishing agent is mainly a mixed solution containing quaternary ammonium salt chitosan, tannic acid and glacial acetic acid. The preparation method comprises the following steps: dispersing chitosan in deionized water, then adding 2, 3-epoxypropyltrimethylammonium chloride, heating and stirring, reacting, and purifying and drying to obtain quaternary ammonium salt chitosan; and dissolving quaternary ammonium salt chitosan in an acetic acid solution, and adding tannic acid to obtain the antibacterial finishing agent. In the application, the fabric is soaked in the antibacterial finishing agent, then soaked in deionized water for washing and finally dried, the finished and modified fabric is high in antibacterial property, the antibacterial rate on escherichia coli is 99.2%, and the antibacterial rate on staphylococcus aureus is close to 100%.

The invention discloses a Sm-doped modified Ni / de-USY catalyst for ammonia hydrogen production. The Sm-doped modified Ni / de-USY catalyst is prepared from the following raw materials in percentage by mass: 97.82%-98.85% of a USY molecular sieve, 0.5%-1.4% of a nickel compound and 0.22%-0.79% of a samarium oxide. The invention also discloses a preparation method of the Sm-doped modified Ni / de-USY catalyst for hydrogen production from ammonia, which comprises the following steps: performing hydrothermal pretreatment on the USY molecular sieve, performing acid treatment, and preparing the catalyst for hydrogen production from ammonia by utilizing an ultrasonic-assisted equivalent-volume impregnation method. The catalyst for hydrogen production from ammonia can efficiently decompose ammonia gas and is high in hydrogen production efficiency, and due to the fact that active metal is highly dispersed on the de-USY surface, high relative crystallinity is kept, and the pore channel structure of the complete Y molecular sieve is kept, the catalyst for hydrogen production from ammonia has high stability, and the catalytic effect can be prevented from being affected.

The invention discloses an insect-repelling environment-friendly sand-containing fog sealing layer and a preparation method thereof. The insect-repelling environment-friendly sand-containing fog sealing layer comprises the following components in parts by mass: 35-70 parts of asphalt; 30 to 70 parts of water; 2-8 parts of a composite emulsifier; 0.5 to 3 parts of a defoaming agent; 5 to 30 parts of acrylic ester; 0.1 to 1 part of a photoinitiator; 20 to 40 parts of a suspending agent; 20 to 45 parts of fine sand particles; 5 to 40 parts of insect-repelling environment-friendly microcapsules; a shell material of the insect-repelling environment-friendly microcapsule is a composite shell material containing silicon dioxide / nano tourmaline, and a core material of the insect-repelling environment-friendly microcapsule comprises one or more of a pyrethroid compound, a carboxylic ester compound, an amide compound and a plant extract; a metal chelate is loaded on the surface of the shell material. The insect-repelling environment-friendly sand-containing fog sealing layer has good pavement performance and insect-repelling performance, and can effectively inhibit the amount of pollutants generated when an asphalt pavement is exposed to high temperature and solarization.

The invention provides a flexible ionic polymer binder as well as a preparation method and application thereof, and belongs to the technical field of lithium ion batteries. The invention provides a flexible ionic polymer binder, which has a chemical structure as shown in a formula I. When the binder is used for a positive electrode of a lithium ion battery, a polyacrylic acid trialkyl amino ester anionic salt chain segment provides an active site, and chemical bonds or electrostatic interaction is generated between the binder and a positive electrode active material, so that the positive electrode active material is formed. The specific type of anions improves the interaction between the binder and the positive electrode active material, and improves the capacity and cycle performance of the battery. The result of the embodiment shows that the initial specific discharge capacity of a lithium ion battery assembled by a positive pole piece prepared from the flexible ionic polymer binder provided by the invention can reach 155.2 mAh / g, the initial specific discharge capacity can still be kept at 149.9 mAh / g after 800 cycles under the current density of 0.5 C, the capacity retention rate can reach 96.59%, and the lithium ion battery has good cycle performance.

The invention relates to a preparation method of a zeolite imidazole frame-8 double-site loaded carbon dot and gold or gold and silver nanocluster fluorescent material, which comprises the following steps of: 1, uniformly mixing a HAuCl4 aqueous solution and a GSH aqueous solution at room temperature, or uniformly mixing an AgNO3 aqueous solution, the HAuCl4 aqueous solution and the GSH aqueous solution, then stirring for 20-28 hours at 60-80 DEG C, cooling to room temperature, adding methanol, centrifuging, and drying to obtain a precursor solution of the zeolite imidazole frame-8 double-site loaded carbon dot and gold or gold and silver nanocluster; washing and drying to obtain gold or gold-silver nanoclusters, and dispersing the gold or gold-silver nanoclusters in water for later use; step 2, preparing carbon dots CDs; 3, zinc nitrate hexahydrate and 2-methylimidazole are added into methanol containing CDs under the stirring condition to react for 20-28 hours, centrifugation and washing are conducted, and a product ZIF coated CDs is obtained; and 4, mixing the gold or gold and silver nanocluster solution with the ZIF-coated CDs under an ultrasonic condition at room temperature to obtain the ZIF-coated CDs / gold / silver nanocluster composite material. The invention also provides an application of the zeolite imidazole frame-8 double-site loaded carbon dot and gold and silver nanocluster fluorescent material in detection of pesticide triazophos (TZP) and glucose.

The invention relates to the technical field of load regulation, in particular to a transformer load regulation method and device, equipment and a storage medium. The method comprises the following steps: identifying downstream electric equipment of a current transformer, and marking the downstream electric equipment as an electric equipment node; carrying out real-time load monitoring on the electric equipment nodes, and carrying out multi-period load characteristic analysis to obtain a multi-period load curve of each electric equipment node; carrying out multi-time-point discretization processing on the multi-period load curve of each power utilization node, and carrying out node-by-node load change trend analysis to generate load fluctuation trend data of each node; performing current flow direction logic analysis on the nodes of the electric equipment so as to generate node flow direction logic data; and performing topology connection reconstruction based on the node flow logic data, and constructing a node topology distribution network. According to the invention, efficient and balanced transformer load control is realized.

The invention discloses an all-solid-state battery frame structure with a porous structure and double-side supporting thin-layer electrolyte and a preparation method of the all-solid-state battery frame structure. The all-solid-state battery frame structure comprises two layers of porous solid-state electrolyte supporting bodies and a layer of thin-layer solid-state electrolyte, the porous solid electrolyte support bodies are respectively arranged on the upper surface and the lower surface of the thin-layer solid electrolyte as support bodies, and the porous solid electrolyte support bodies have three-dimensional porous structures. According to the all-solid-state battery and the preparation method thereof, the thin-layer solid-state electrolyte of which the two surfaces are supported and homogenous and of a porous solid-state electrolyte structure is prepared through an additive manufacturing technology, and then positive and negative electrode materials are injected into pore channels of a porous solid-state electrolyte supporting body, so that the all-solid-state battery of a 3D structure is constructed, and the thin-layer solid-state electrolyte has low internal resistance; the three-dimensional porous structure support has high reliability; the anode and cathode materials and the solid electrolyte are in three-dimensional contact, and the interface resistance is small.

The invention discloses a preparation method of a long-acting interface lubricating coating, which comprises the following steps: (1) adding 5-7 parts by mass of nano sol, 4-6 parts by mass of micron porous powder, 1.0-1.2 parts by mass of low surface energy substance and 4-6 parts by mass of ammonia water into 80-120 parts by mass of ethanol, and stirring under a water bath heating condition to obtain a modified micron particle suspension, the suspension liquid is dried into powder at high temperature, and modified porous powder is obtained; (2) fully mixing 0.8-1.2 parts by mass of the modified porous powder and 3-5 parts by mass of silicone oil, putting the mixture into a vacuum pump to vacuumize so that the silicone oil can enter the modified porous powder, and after the vacuum state is removed, separating redundant silicone oil to obtain porous powder containing silicone oil; (3) carrying out hole sealing treatment on the porous powder containing the silicone oil, drying at a high temperature, and then mixing with the silicone oil to obtain a mixed solution of the hole sealing powder and the silicone oil; and (4) firstly adding 2.5-4 parts by mass of resin into 2-5 parts by mass of a diluent, then adding 0.5-0.6 part by mass of a silane coupling agent, then adding 0.5-0.8 part by mass of the mixed solution obtained in the step (3), finally adding 0.75-1.2 parts by mass of a curing agent, uniformly mixing, brushing or spraying onto a substrate, and airing to obtain the interface lubricating coating.

The invention relates to a modified binder as well as a preparation method and application thereof. The modified binder comprises an inner core layer, a middle shell layer and an outer shell layer which are sequentially arranged from inside to outside, wherein the inner core layer and the middle shell layer are made of butadiene styrene rubber, and the strength of the inner core layer is greater than that of the middle shell layer; and the shell layer is formed by unsaturated acid and unsaturated ether substances. According to the scheme provided by the invention, the problems of negative electrode coating cracking and material floating in the coating process can be effectively improved, the stripping force of the negative electrode piece is improved, and the adhesive property is good; and the dispersion of the negative active material, the conductive agent and the like can be improved and promoted, the loading capacity of the negative active material is improved, and the energy density and cycle performance of the battery are improved.

The invention discloses carbon nanotube modified carbon black conductive powder as well as a preparation method and application thereof, and relates to the technical field of materials. The carbon nanotube modified carbon black conductive powder provided by the invention comprises carbon black and nitrogen-containing carbon nanotubes, the nitrogen-containing carbon nanotubes grow on the surface of the carbon black in situ, and the weight ratio of the carbon black to the nitrogen-containing carbon nanotubes ranges from 10: 1 to 3: 1; the oil absorption amount of the conductive powder ranges from 210 ml / 100g to 280 ml / 100g; the resistivity range of the conductive powder is 50-90 m omega.cm; and the specific surface area of the conductive powder is 110-180m < 2 > / g. Chemical combination of the carbon black and the nitrogen-containing carbon nanotubes is achieved, when the carbon black is used as the conductive agent, a conductive path can be obtained under the condition of using a small amount, the conductivity of the carbon black is improved through introduced nitrogen, meanwhile, the use amount of the carbon black is reduced, the carbon black can be directly added into a system in a powder form and is easily dispersed into all systems, and the method is simple and easy to implement.

The invention discloses a relay chain cross-chain asynchronous consensus method, a readable storage medium and equipment. The relay chain cross-chain asynchronous consensus method comprises the following steps: acquiring a batch transaction packet corresponding to a target cross-chain transaction and transaction broadcast performance of an asynchronous consensus node group; based on the size of the batch transaction packet and the transaction broadcast performance of the asynchronous consensus node group, determining an optimal cross-chain transaction matching scheme which enables the asynchronous consensus node group to process the batch transaction packet at the fastest speed; and according to the optimal cross-chain transaction matching scheme, sending the batch transaction packets to an asynchronous consensus node group for asynchronous consensus processing. According to the method, the optimal cross-chain transaction matching scheme which enables the asynchronous consensus node group to process the batch transaction packets at the fastest speed is determined by using the batch transaction packets corresponding to the target cross-chain transaction and the transaction broadcast performance of the asynchronous consensus node group; and according to the optimal cross-chain transaction matching scheme, the batch transaction packets corresponding to the target cross-chain transaction are sent to the asynchronous consensus node group for asynchronous consensus processing, so that the load of the asynchronous consensus node group is greatly reduced, and the transaction packet processing speed of the asynchronous consensus node is improved.

The invention belongs to the technical field of environmental protection, and discloses a method for rapidly and efficiently removing and recycling polycyclic aromatic hydrocarbon in water and a carbon-based adsorbent, the method comprises the following steps: S1, preparing a modified carbon-based adsorbent; s2, treating the polycyclic aromatic hydrocarbon pollutant wastewater; and S3, recycling the polycyclic aromatic hydrocarbon. According to the preparation method, H3PO4 or ZnCl2 is taken as an activating agent, and an activated carbon base material and an activating process are controlled, so that nano-micron multi-scale modified carbon-based adsorbent particles which are mainly prepared from a large number of long-strip-shaped gap mesopores which are communicated with one another and are approximately distributed in parallel and are auxiliary from a small number of discrete irregular groove-shaped mesopores are obtained; the long and narrow long-strip-shaped gap mesopores of the particle are matched with the irregular groove-shaped mesoporous structure, so that large-size polycyclic aromatic hydrocarbon can be quickly adsorbed and desorbed, and the balance of adsorption and desorption efficiency can be realized; on one hand, the adsorption and desorption efficiency of pollutants is improved, and on the other hand, the dosage of the adsorbent is greatly reduced.

The invention discloses a method for detecting HCPs in a biological protein drug based on an LC-MS / MS method. The method comprises the following steps: covalently binding an HCPs-derived cell line protein sample and a monoclonal antibody protein with the sample by adopting a chemical reagent, mixing, fractionating, and finally performing liquid-phase mass spectrometry to obtain an analysis result of HCPs in the monoclonal antibody drug. Compared with the prior art, the detection signal is enhanced by adding the host cell protein for producing the monoclonal antibody, the detection sensitivity and the identification depth of low-abundance protein are remarkably improved, the important blank of HCPs analysis is filled up, and the monoclonal antibody can be used for detecting and proving HCPs removal, especially extremely-low-level hydrolase in drug process development, and can be applied to detection and proving of HCPs removal. The method has important influence on ensuring the quality of biological protein pharmaceutical products and the safety of patients.

The invention discloses an urban underground space engineering excavation supporting device, which belongs to the technical field of engineering excavation supporting, and comprises side supporting mechanisms and a transverse supporting mechanism, and the transverse supporting mechanism is arranged between the two side supporting mechanisms. The side supporting mechanism comprises a supporting height adjusting assembly, a secondary auxiliary side fixing assembly, an arched supporting angle adjusting assembly and a crank body, the supporting height adjusting assembly comprises a clamping head and a lower sliding seat, one end of the crank body can be clamped in the clamping head, and the crank body rotates to drive the lower sliding seat to move up and down; the arch-shaped supporting angle adjusting assembly comprises a threaded pull rod and a threaded sleeve. By arranging the side supporting mechanisms and the transverse supporting mechanism, the supporting function of underground space engineering excavation tunnels with different widths can be achieved only by adjusting the distance between the two side supporting mechanisms without the help of a power source, and the overall stability and bearing capacity are improved through cooperation of the side supporting mechanisms and the transverse supporting mechanism.

The invention discloses a memory equalization method and system based on edge computing, a medium and a program product, and relates to the field of electrical digital data processing.The method comprises the steps that memory release prediction time points of all edge computing devices are calculated according to the memory change rate; dividing a memory space into a calculation storage area and a temporary cache area; when it is detected that any target edge computing device exists, at least two candidate devices with the optimal communication quality with the target edge computing device are selected according to the network communication quality; sorting the candidate devices to obtain a candidate device queue; respectively migrating the overload data of the target edge computing device to a temporary cache region of each candidate device in the candidate device queue; controlling the target edge computing device to read corresponding overload data from the temporary cache region of the candidate device; and migrating the read overload data to a computing storage area with the memory usage amount lower than a preset threshold value in the plurality of edge computing devices. According to the invention, the memory load balancing efficiency is improved.