34results about How to "Improve transfer ability" patented technology

The invention relates to the technical field of grinding machines, in particular to a digital intelligent grinding machine which comprises a main frame. The rotating frame X is rotationally connected to the main frame; the motor X is fixedly connected to the main frame; the grinding basin is fixedly connected to one side of a rotating shaft of the rotating frame X; the grinding disc is rotationally connected into the grinding basin; the motor Y is fixedly connected to the rotating frame X; the mounting frame is fixedly connected to the other side of the rotating shaft of the rotating frame X; the screening frame is arranged on the mounting frame; the connecting piece is fixedly connected between the mounting frame and the screening frame; and the vibrating motor is fixedly connected to the screening frame. According to the grinding device, the positions of the grinding basin and the mounting frame are exchanged in a rotating mode, so that the workpiece and the grinding sand are transferred between the mounting frame and the grinding basin, different treatment machining is carried out, the workpiece and the grinding sand are transferred more conveniently, and the purpose of improving the use convenience of the grinding device is achieved.

The invention relates to the technical field of basement buildings, and provides a basement waterproof structure which comprises a drainage ditch, a filtering grid plate and a drainage pipeline, the filtering grid plate is arranged at an opening of the drainage ditch, and one end of the drainage pipeline communicates with the drainage ditch to discharge rainwater outwards; a standby cavity is formed in the bottom of the drainage ditch and connected with a standby pipeline used for discharging rainwater outwards, a first communication groove communicated with the standby cavity is formed in the bottom wall of the drainage ditch, a cover plate used for opening and closing the first communication groove is hinged to the interior of the drainage ditch, and the cover plate is normally closed in the first communication groove; a buoyancy piece is arranged between the drainage ditch and the cover plate, and when the rainwater level in the drainage ditch rises to the opening of the drainage ditch, the buoyancy piece drives the cover plate to turn over so as to open the first communication groove. According to the basement waterproof structure, the good drainage performance of the drainage ditch can be kept, and the possibility that a basement is flooded is reduced.

The invention relates to the field of organic photovoltaic cell materials, in particular to an organic compound containing cyano-substituted 1, 3-indandione. The organic compound containing cyano-substituted 1, 3-indandione provided by the invention is used as an acceptor material to be matched with a proper donor material to be applied to an organic photovoltaic cell, and the photoelectric property of the organic photovoltaic cell can be improved.

The invention discloses a magnetic catheter, an intervention device and a catheter intervention method.The magnetic catheter comprises an inner-layer tube and an outer-layer tube which are arranged in a nested mode to form the inner diameter and the outer diameter of the magnetic catheter, a middle layer is fixedly embedded between the inner-layer tube and the outer-layer tube, and the middle layer is an elastic layer and can be bent in the circumferential direction; the thrust effect can be transmitted and delivered along the axial direction; the magnetic part and the developing part are both arranged at the front end of the magnetic catheter in the advancing direction, the magnetic part has single polarity, and the developing part is used for improving the detectability of the magnetic catheter under rays. The inner-layer tube, the outer-layer tube and the middle-layer structure are combined to form a main body structure of the magnetic catheter, so that the catheter has supporting performance, pushing performance and bending adjusting performance, meanwhile, through the magnetic part and the developing part, the end of the catheter can be clearly observed, a non-contact magnetic field force turning effect is provided for the catheter, and the magnetic catheter can be conveniently used. The compatibility of the magnetic catheter is improved, the operation convenience is improved, and the operation difficulty of the operation is reduced.

The invention provides a PbZrO3 antiferroelectric capacitor and a preparation method thereof, and relates to the technical field of ferroelectric materials, the PbZrO3 antiferroelectric capacitor comprises a first electrode layer, a PbO layer, a solid solution ferroelectric antiferroelectric layer, a LaNiO3 layer and the like, and phases in the solid solution ferroelectric antiferroelectric layer comprise PbZrO3, a ferroelectric and an Ag-containing Au phase. The invention also provides a preparation method of the capacitor, and the method comprises the following steps: depositing a LaNiO3 precursor solution on a single crystal substrate, and carrying out the crystallization; mixing the PbZrO3 precursor solution with the ferroelectric precursor solution, and then adding Au nanoparticles containing Ag; the LaNiO3 layer is coated with the mixed solution, and crystallization is carried out; depositing the PbO precursor solution on the surface of the antiferroelectric layer of the solid solution ferroelectric, and crystallizing; and carrying out gold electrode deposition to obtain the PbZrO3 antiferroelectric capacitor. The capacitor is high in energy storage efficiency and high in dielectric constant.

The invention discloses a scenting machine applied to a scented tea production line, and relates to the technical field of scented tea preparation, the scenting machine comprises a main shell, the top of the main shell is fixedly provided with a first upper sealing cover, the inner surface wall of the main shell is fixedly provided with a built-in supporting plate, and the top of the first upper sealing cover is provided with an intermittent material sweeping mechanism; a fragrance diffusing mechanism is arranged at the top of the built-in supporting plate, the intermittent material sweeping mechanism comprises a middle cylinder, a wide-body funnel is fixedly installed at the top of the middle cylinder, an inner connecting ring is fixedly installed on the inner surface wall of the wide-body funnel, and the fragrance diffusing mechanism comprises a special-shaped gas guide pipeline. According to the mechanism, the scented tea scenting mode is changed, aroma-enhanced tea leaves are scattered in a gradient mode, the problem that the tea leaves are dragged and piled up is actually solved, it is guaranteed that all the tea leaves are independent from one another, meanwhile, the aroma diffusing mode is optimized, aroma airflow can fully cover all the tea leaves, and therefore the aroma-enhanced tea leaves are more uniform in scenting effect. The flower fragrance transfer effect is practically improved.

The invention relates to a polyvinyl alcohol composite film of molybdenum diselenide coated WO3 nanosheet containing 1T-MoSe2, a preparation method and application, the molybdenum diselenide nanosheet containing 1T-MoSe2 synthesized by a hydrothermal method is combined with the (100) surface of the WO3 nanosheet to construct a composite material of a heterostructure, the composite material is dispersed in a 10wt% polyvinyl alcohol solution, pouring is performed to obtain a polymer film, and the polymer film is coated with the molybdenum diselenide coated WO3 nanosheet containing 1T-MoSe2. When the thickness of a composite film sample is 500m, the material with the optimal proportion shows effective shielding effectiveness (the shielding effectiveness is greater than or equal to 10dB) within the whole test range of 0.2-1.8 THz, the shielding effectiveness at 1.62 THz can reach 71.48 dB, and the average terahertz shielding effectiveness reaches 43.03 dB. The material has the advantages of light weight, ultra-thinness, strong absorption and the like, and has important value in the fields of terahertz signal shielding of microelectronic devices, stealth coatings and the like.

The application discloses a modified asphalt for water-based drilling fluid and a preparation method thereof. The modified asphalt for water-based drilling fluid comprises the following raw material components: pretreated reducing slag, acid anhydride modifier, initiator, stabilizer, modifier, modification aid and performance regulator. The modifier is low-grade sulfur. The pretreated reducing slag comprises the following raw material components in weight: inferior reducing slag: 100 parts; oil sand asphalt: 20-60 parts; and pretreatment agent: 0.1-2 parts. The high-softening-point asphalt with high softening point and good hydrophilicity is obtained by modifying the difficult-to-handle inferior reducing slag and oil sand asphalt, and is suitable for being used as main material for producing asphalt water-based drilling fluid.

The present application relates to sample supernatant transfer equipment technical field, and disclose a built-in filter element pollution prevention device for biological sample processing, including the platform, the top of the platform is fixedly connected with first connecting frame, the top of first connecting frame is fixedly connected with auxiliary assembly, the top of auxiliary assembly is fixedly connected with second connecting frame, the surface of one end of auxiliary assembly is slidably connected with sliding cover, the surface of the other end of auxiliary assembly is fixedly connected with control center. The both sides of the top of auxiliary assembly are fixedly connected with fixture, the inside of auxiliary assembly is provided with pasteur pipette, the rear end surface of auxiliary assembly is fixedly connected with vertical table, the top of pasteur pipette is provided with funnel shape, the bottom of pasteur pipette is provided with conical shape, the inside of the middle part of pasteur pipette is provided with filter element, the material of filter element is provided with polypropylene, polytetrafluoroethylene and nylon mixed material, the device has the advantages of improving the extraction effect of the device on sample supernatant, convenient for users to use and the like.

The invention discloses a preparation method of a nickel-based composite electrocatalyst doped with different Mn, and belongs to the field of electrochemistry. The preparation method comprises preparation of a Mn-doped nickel hydroxide precursor and preparation of the Mn-doped nickel-based composite electrocatalyst. The method comprises the following steps: (1) preparing Mn-doped Ni (OH) 2 precursors with different contents by a hydrothermal method; (2) synthesizing a Mn-doped nickel-based composite electrocatalyst by using triethanolamine as a carbon source and utilizing a vapor deposition method, so as to increase the conductivity; (3) nitric oxide, carbon dioxide and other gases volatilized from triethanolamine on the surface of the catalyst form holes to increase active sites; and (4) testing the electrochemical hydrogen evolution performance of the electrocatalyst under an alkaline condition by using an electrochemical workstation. The prepared Mn0.2-NiC / NiO catalyst only needs the overpotential of 56 mV under the current density of 10 mA / cm < 2 >, and the stability exceeds 20 h. The prepared hydrogen evolution heterostructure electrocatalyst is efficient, and the method is simple and convenient.

The invention belongs to the technical field of sewage treatment, and discloses an adsorption-degradation function integrated recoverable catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a cobalt source, an iron source, sodium acrylate, anhydrous sodium acetate and a solvent, and performing solvothermal reaction to obtain cobalt ferrite; the preparation method comprises the following steps: mixing cobalt ferrite, ammonia water, tetrapropoxysilane, resorcinol, formaldehyde, ethanol and water, reacting, pyrolyzing, etching with alkali liquor, and pyrolyzing again to obtain the catalyst. Core-shell hollow mesoporous carbon sphere encapsulated cobalt ferrite nanoparticles are prepared and used for activating PMS to degrade LFX. Due to the remarkable adsorption capacity, LFX can be effectively enriched, and free radical and non-free radical oxidation jointly act on PMS activation to complete LFX degradation. The catalyst can be effectively recovered and reused through magnetic separation, and has the advantages of small dosage, wide pH application range and high stability.

The invention relates to the technical field of batteries, in particular to a negative electrode material and a preparation method thereof, a negative electrode plate and a sodium ion battery. The negative electrode material is prepared from WOx-W2C heterojunction nano particles and an MXene material, the MXene material has an accordion-shaped layered structure, and the WOx-W2C heterojunction nanoparticles are loaded on the surface of the MXene material and between the surface of the MXene material and the layered structure of the MXene material. The negative electrode material disclosed by the invention shows high reversible specific capacity and excellent super-long cycle stability, and the electrochemical performance of the sodium ion battery can be remarkably improved.

The utility model relates to multi-station air core cutting equipment, belongs to the technical field of air core processing, and aims to solve the problems of high workload of personnel and low production efficiency due to the fact that air core cutting is carried out in a manual or manual semi-mechanical manner when the existing air core cutting is carried out. The workbench is provided with the feeding assembly, the cutting assembly and the discharging assembly, and a feeding station, a cutting station and a discharging station are formed; slide rails are arranged among the stations; the gas core transferring assembly is slidably mounted on the sliding rail; the air core transferring assembly is provided with a plurality of material taking units used for taking and releasing air cores; the cutting assembly is provided with a gas core mounting table and a cutting knife, and a plurality of mounting cavities are formed in the gas core mounting table at intervals and used for containing gas cores. The air core moving assembly takes materials from the feeding station along the sliding rail and transfers the materials to the mounting cavity for cutting, and after cutting, the air core transferring assembly takes the materials and transfers the materials to the discharging station for discharging. According to the multi-station air core cutting equipment, the workload of workers is small, the automation degree is high, and the production efficiency is high.

The invention discloses a preparation method of a microsphere type nano composite material, which comprises the following steps: preparing ZCS-Vs powder by using Zn (AC) 2.2 H2O, Cd (NO3) 2.4 H2O and CH4N2S as raw materials and using a mixed solution of deionized water and hydrazine hydrate as a solvent through a solvothermal method; glucose, NiCl2. 6H2O and urea are used as raw materials, deionized water is used as a solvent, and NiO / Ni-C powder is prepared by combining a solvothermal method with a nitrogen atmosphere calcination method; and placing the NiO / Ni-coated C in a ZCS-Vs aqueous solution for ultrasonic dispersion, uniformly stirring, and annealing in an air atmosphere to obtain the NiO / Ni-coated ZCS-Vs nano composite material. The nano composite material prepared by the embodiment of the invention has the advantages of stable structure, strong visible light response capability, high electron transfer efficiency, rich catalytic active sites and the like, and can be applied to efficient hydrogen production by solar energy and photocatalysis.

The invention provides a method for improving the biological manganese oxidation performance of manganese oxidizing bacteria and application, and belongs to the technical field of sewage treatment. According to the method, the biological manganese oxidation performance of the manganese oxidizing bacteria is improved by adding the biochar, and after the biochar is added into the manganese oxidizing bacteria, the divalent manganese is added, so that the oxidation rate of the divalent manganese can be obviously improved, and the removal efficiency of heavy metals in the wastewater is improved. Wherein the biochar can be used as an electron shuttle, so that the transfer capability of electrons can be improved, and the oxidation rate of divalent manganese can be increased; the biochar also improves the gene abundance and expression ability of the manganese-oxidizing bacteria and the extracellular superoxide concentration, improves the biological activity of the manganese-oxidizing bacteria, and accelerates the oxidation of divalent manganese. Moreover, the biochar is wide in source and low in cost, resource recycling can be achieved, meanwhile, the treatment cost is reduced, and the biochar is easy to prepare and put and convenient to use in practical application.

The invention discloses a preparation method of 2-hydroxy-benzonitrile, which belongs to the field of organic synthesis and comprises the following steps: adding salicylamide, toluene, a catalyst and magneton into a three-necked flask, introducing condensate water, heating to 110 DEG C, reacting at constant temperature for 3-5 hours while stirring, introducing water generated by the toluene into a water segregator, discharging water from the lower part after standing and layering, and after dehydration is completed, filtering to obtain 2-hydroxy-benzonitrile. Filtering out the catalyst, cooling the residual solution at room temperature, and recrystallizing to obtain 2-hydroxy-benzonitrile; acid and alkaline sites on the surface of the catalyst promote intramolecular dehydration of salicylamide, meanwhile, heteroatom doping effectively changes the electronic structure of the carbon nanotubes, increases the active sites of the catalyst, accelerates the electron transfer ability, and accelerates the intramolecular dehydration rate of salicylamide. The acid-base center coexistence reduces the activation energy of the reaction, so that the catalytic process can be carried out at a lower temperature, and the catalyst is easy to separate and good in cycling stability after the reaction is finished.

The application discloses a targeted adversarial attack enhancement method based on channel feature selection, belongs to the technical field of artificial intelligence security, and comprises the following steps: a heat map is calculated through a Grad-CAM algorithm, and a significant region is obtained; the significant region is supplemented to a significant map; a local image is obtained by randomly cutting the significant map; the local image is scaled to the same size as the original image; the original image and the local image are input into a CNN with the same adversarial perturbation; and a channel feature selection method is applied to optimize the adversarial perturbation. The application can improve the transferability of adversarial samples to a greater extent in the case of targeted attack; the application creatively applies model attention to targeted adversarial attack, so that the perturbation learns how to better transfer the significant features of the original image to the target category. The application focuses on improving the transferability of adversarial samples, thereby improving the success rate of black-box attack.

The invention relates to the technical field of water permeable bricks, and discloses a preparation method of an anti-skid and anti-freezing water permeable brick, which comprises the following steps: (1) obtaining acid-treated coal gangue; (2) obtaining a grafting solution; (3) obtaining grafted bentonite; (4) obtaining a binder; (5) obtaining a water-permeable green brick; and (6) obtaining the finished water permeable brick. The water permeable brick prepared by the preparation method disclosed by the invention has excellent anti-skid and anti-freezing properties, in the preparation process of the water permeable brick prepared by the preparation method disclosed by the invention, the surface of the water permeable brick is pressed, smoother and then fired, so that a uniformly dispersed concave-convex structure is generated on the surface of the water permeable brick, and the concave-convex structure can greatly improve the friction force between a shoe sole and the water permeable brick; especially in rainy and snowy days, due to the fact that high friction resistance is provided, the remarkable anti-skid effect can be achieved.

The utility model provides an instrument transfer device convenient to take and place, which comprises a bottom plate, a plurality of universal wheels arranged at the lower end of the bottom plate, a back plate upwards arranged on one side of the bottom plate, side plates upwards arranged on two sides of the back plate of the bottom plate, and a plurality of storage grooves sequentially distributed from bottom to top between the two side plates, the upper end and the side, away from the back plate, of each storage groove are open, the side, away from the back plate, of each storage groove inclines upwards, water leakage holes are formed in the bottoms of the two ends, close to the back plate, of each storage groove, a flat water storage barrel is placed at the upper end of the bottom plate, and two water receiving openings in one-to-one correspondence with the water leakage holes are formed in the upper end of the flat water storage barrel upwards. The two lowermost water leakage holes are downwards provided with flow guide channels corresponding to the water receiving openings in a one-to-one mode, and the side, away from the storage groove, of the back plate is connected with a handrail. According to the medical instrument transfer trolley, medical instruments can be placed and transferred in a three-dimensional mode, meanwhile, taking and placing are convenient, and the overall working efficiency can be effectively improved.

The invention discloses a hard carbon material and a preparation method and application thereof. The preparation method of the hard carbon material comprises the following steps that a biomass material is subjected to acid pickling and alcohol or ketone washing, then the biomass material and a material containing a cationic catalyst are mixed, reacted and carbonized, the hard carbon material is obtained, and cations in the cationic catalyst comprise at least one of transition metal cations or weak metal cations. The preparation method of the hard carbon material is low in production cost, the prepared hard carbon material is applied to a sodium ion battery, and the battery is high in first efficiency and good in cycle performance.

The invention provides a novel electrochemical sensor for detecting CREG1 based on a surface molecular imprinting technology and a preparation method of the novel electrochemical sensor. Comprising the following steps: step 1, preparing a reagent solution required in a manufacturing process; step 2, polishing the glassy carbon electrode (GCE); 3, AuNPs / GCE is prepared; step 4, preparing CREG1 / GA (at) CS / AuNPs / GCE; step 5, preparing MIP / GA (at) CS / AuNPs / GCE; and step 6, scanning in the redox probe solution by adopting a differential pulse voltammetry (DPV), and determining the content of the CREG1. According to the invention, CREG1 protein is selected as a detection template, and a molecularly imprinted polymer is combined with gold nanoparticles through a surface polymerization method to prepare a corresponding western blot material. Gold nanoparticles are used as a matrix, CREG1 is used as a template, GA (at) CS is used as a protein fixing agent, and polyphenol is used as an imprinted polymer to prepare a surface imprinted material, and the surface imprinted material is measured by measuring the change of sensor current before and after the combination of a molecularly imprinted membrane (MIP) and CREG1. According to the present invention, the surface molecular imprinting technology and the electrochemical sensing technology are combined to construct the high-sensitivity and high-specificity CREG1 sensor, and the high-sensitivity and high-specificity CREG1 sensor is the novel surface molecular imprinting electrochemical sensor with good biocompatibility, can simply, conveniently and rapidly recognize the CREG1 protein at a low cost, and has characteristics of high sensitivity and high sensitivity. In addition, the method can also be used as a universal sensing platform to be suitable for other proteins.

The present invention relates to the technical field of material transition transfer equipment, specifically to a material transition transfer device for an intelligent logistics line, including a support base, and a protective box is fixedly connected to the top of the support base. According to the present invention, when it is necessary to transfer materials from one direction to another, the driving motor drives the gear to rotate. Since the gear is meshed with the annular gear plate, the gear can drive the annular gear plate to move, and the annular gear plate drives the rotating disk to rotate axially with the rotating shaft as the rotating axis. During the rotation of the rotating disk, the rotating disk drives the fixed slide bar and the sliding seat to move, and the sliding seat pulls the protective plate to rotate. During the rotation of the protective plate, the guide slide bar slides on the guide slide groove. When the guide slide groove guides the guide slide bar, the guide slide bar drives the protective plate to move in the direction of the feed port, so that the protective plate can block the material to prevent the material from detaching and falling from a high altitude during the transfer process.

This invention relates to the field of battery fabrication, specifically disclosing a tetragonal zirconium dioxide / carbon sphere composite material and its preparation method and application. The method includes the following steps: (1) dissolving zirconium tetrachloride in a solvent, then adding dopamine, and after thorough dissolution and mixing, slowly adding ammonia water. As ammonia water is added, the solution gradually turns into a milky white opaque liquid. The solution is continuously stirred at room temperature until it gradually changes from milky white to brownish-black, obtaining a zirconium-based / polydopamine composite precursor; (2) centrifuging the obtained zirconium-based / polydopamine composite precursor, washing it to obtain a brownish-black precipitate, drying the brownish-black precipitate to obtain a brownish-black precursor powder; (3) calcining the precursor powder to obtain a tetragonal zirconium dioxide / carbon sphere composite material. This invention successfully constructs a metastable tetragonal zirconium dioxide composite catalyst induced by polydopamine and confined to the surface of carbon spheres.

The invention relates to a preparation method of an ionic liquid modified CuInS2 catalyst, which comprises the following steps: mixing soluble copper salt, soluble indium salt, thioacetamide and a solvent I to obtain a mixed solution, heating the mixed solution in a closed container to 140-180 DEG C, and washing and drying a solid product to obtain a CuInS2 material; and mixing the CuInS2 material, an ionic liquid and a solvent II, stirring, volatilizing the solvent, drying to obtain a pretreated catalyst, and roasting the pretreated catalyst in an inert gas or nitrogen atmosphere at 300-500 DEG C for 1-5 hours to obtain the ionic liquid modified CuInS2 catalyst. The method is simple and low in cost, and solves the problem of poor selectivity of reducing CO2 into ethylene through photo-thermal catalysis of an existing catalyst.

The invention belongs to the technical field of biological medicines, and particularly relates to application of expression of lymph node mast cells to prediction of prognosis survival of tumor patients. The tumor is breast cancer and / or head and neck squamous cell carcinoma. The inventor finds that high-level expression of mast cells in metastatic lymph nodes is related to prognosis survival of tumor patients by exploring functions of the mast cells in the metastatic lymph nodes, and the mast cells can be used as biomarkers for prognosis survival judgment of the tumor patients, so that more valuable information is provided for clinical treatment.

The invention discloses a filtering and antibacterial composite dust removal device, and relates to the technical field of filtering and dust removal. A filtering and antibacterial composite dust removal device comprises an ash hopper mechanism, the ash hopper mechanism comprises an inverted ash hopper, the four sides of the ash hopper are fixedly connected with support legs, an ash shaking mechanism is arranged above the ash hopper mechanism, the ash shaking mechanism comprises a main frame, the lower port of the main frame is adapted to the upper port of the ash hopper, an inlet pipe is passed through and fixedly connected to the middle of one side wall of the main frame, the lower part of the inlet pipe is correspondingly inserted into the ash hopper, a sterilization mechanism is arranged above the ash shaking mechanism, a discharge mechanism is arranged on one side of the sterilization mechanism, a first guide plate assembly is obliquely arranged at the middle of one inner side of the ash hopper, a second guide plate assembly is obliquely arranged at the upper inner side of the other ash hopper, the first guide plate assembly comprises a first plate roller, and the first plate roller is embedded in the middle of one inner side of the ash hopper, a filtering and antibacterial composite dust removal device, which prevents dust from accumulating on the grid plate, guides and accelerates it to enter the ash hopper, and improves the fluency of dust removal.

The utility model relates to a gas core cutting detection device, which comprises a pre-cutting detection assembly or / and a post-cutting detection assembly, the pre-cutting detection assembly comprises a first detection frame, a first detection assembly, a transfer unit and a first defective product collector; the post-cutting detection assembly comprises a second detection frame, a second detection assembly, a material distribution assembly and a second defective product collector; the first detection assembly and the second detection assembly are respectively provided with a plurality of detection heads, and a gas core is placed on a product carrying seat of the first detection frame; the first detection assembly and the transfer unit are slidably mounted on the first detection frame, and the detected defective product gas core is transferred to the first defective product collector by the transfer unit; the cut air cores are detected and then transferred to the material distribution assembly for product material distribution, and defective products are collected by the second defective product collector. The utility model further relates to gas core cutting equipment provided with the gas core cutting detection device. The gas core cutting equipment comprises a feeding assembly, a gas core transferring assembly and a cutting assembly. The gas core cutting detection device is high in automation degree and high in production efficiency.

The invention belongs to the technical field of catalytic ozonation and water treatment, and particularly relates to a modified ceramic tubular membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: loading nickel-iron layered double hydroxide (Ni-Fe LDH) on SnO2 nanoparticles to prepare Ni-Fe LDH / SnO2, and coating the Ni-Fe LDH / SnO2 as a catalytic layer on the surface of a ceramic tubular membrane to prepare the Ni-Fe LDH / SnO2 ozone catalytic ceramic tubular membrane. A heterojunction constructed by compounding Ni-Fe LDH and SnO2 can effectively improve reactions such as charge transfer and interface oxidation-reduction, so that the catalytic performance is promoted; besides, the high-activity components are uniformly loaded on the surface of the ceramic membrane and in membrane holes, the layered structure is distinct, the roughness and hydrophilicity of the surface of the membrane are effectively improved, and membrane pollution prevention and control are facilitated; when the modified ceramic membrane is applied to treatment of mixed dye polluted water, organic pollutants can be efficiently removed, and the modified ceramic membrane has relatively good membrane pollution resistance and relatively high stability.

The invention discloses a suspension wire clamp hardware for overhead lines, belonging to the field of suspension wire clamps, comprising a hull and a hanging plate, wherein a hanging shaft is arranged on the hull, a plug hole is arranged on the hanging plate, the hanging shaft passes through the plug hole, a U-shaped hanging ring is arranged on the hanging plate, a positive circular ring is arranged on the side wall of the hanging plate, a sealing sleeve is fixedly arranged on the side wall of the positive circular ring away from the hanging plate, a cavity is arranged on the positive circular ring, lubricating oil is filled in the cavity, and oil spray pipes are evenly inserted on the side wall of the cavity; the cavity, a pressurizing mechanism and lubricating oil are arranged, and the lubricating oil discharged from the oil spray pipe can be pressurized by the pressurizing mechanism, thereby increasing the impact force of the lubricating oil, and when the lubricating oil with impact force contacts the lubricating oil containing particles in the gap between the hanging shaft and the plug hole, the lubricating oil containing particles will be washed away, thereby improving the lubricating effect on the contact part between the hanging plate and the hanging shaft, reducing the wear degree of the hanging plate, and further eliminating the need for frequent inspection by staff, thereby reducing the workload of staff.

The invention discloses a serum metabolite analysis and detection method and application. Zirconium dioxide hierarchical pore nanospheres modified by gold nanoparticles arranged in an array mode are used as a matrix, a laser ionization desorption-time-of-flight mass spectrometry method is used for extracting a metabolite fingerprint spectrum in serum, feature extraction and normalization processing are carried out on the obtained metabolite fingerprint spectrum, analysis is carried out through a machine learning algorithm, and the metabolite fingerprint spectrum is obtained. The method is used for distinguishing postmenopausal osteoporosis patients from healthy people and monitoring the development process of osteoporosis. The gold nanoparticle modified zirconium dioxide hierarchical pore nanosphere has high specific surface area and strong ultraviolet absorption capability, can promote ionization efficiency, can more efficiently, simply and conveniently analyze serum metabolites, and has good clinical application prospects in diagnosis and monitoring of postmenopausal osteoporosis.