4057results about How to "Improve repair effect" patented technology

The invention provides an electronic image stabilization method based on characteristic coupling. The method comprises the following steps: (1) motion estimation: estimating motion parameters of a present frame and a previous frame to obtain a global motion vector and a local motion vector; (2) motion filtering: employing a Kalman filter to carry out filtering on the global motion vector, and obtaining a willful scan vector, wherein difference between the global motion vector and the willful scan vector is a vibration parameter needs to compensate; (3) motion compensation: utilizing a compensation parameter obtained by filtering carrying out frame by frame compensation; (4) video restoration: by utilizing space-time redundant information of video, carrying out restoration on the local motion vector with a motion restoration method and guiding pixel point filling. In order to solve motion carrier vibration influence on video shooting effect, the invention provides the electronic image stabilization method based on characteristic coupling. The method has the advantages of high accuracy, good anti-noise performance, strong tracking performance, good boundary consistency and the like.

The invention relates to a method for preparing a small intestinal submucosa (SIS) soft tissue repair patch, and the soft tissue repair patch prepared by the method. The invention also relates to application of the soft tissue repair path to tissue repair.

The invention relates to a bone repair porous bracket, which comprises a substrate with a bionic porous structure and growth factor controlled-release microspheres, wherein the growth factor controlled-release microspheres are adsorbed into gaps of the bionic porous structure on the substrate or are dispersed into the substrate by being uniformly mixed with substrate raw material in a substrate forming process. The invention further provides a rapid forming method for the bone repair porous bracket. The method comprises the following steps of: preparing growth factor controlled-release microspheres; forming a substrate; and adsorbing. The invention further provides another rapid forming method for the bone repairing porous bracket. The method comprises a step for preparing growth factor controlled-release microspheres and a step for forming a substrate. The growth factor controlled-release microspheres are introduced into the bracket, bone growth can be induced under the action of the controlled release of growth factors, and inward bone tissue growth is facilitated through a porous structure formed by degradation of the controlled-release microspheres, so that bone tissue regeneration repair is achieved, and bone healing is facilitated effectively. Three-dimensional printing is performed by adding controlled-release microspheres and adopting a rapid forming technology, and a forming process is simple and rapid.

The invention relates to a hair conditioner capable of nourishing hair and repairing damage. The hair conditioner comprises three categories, namely rinsing type, washing-free type and foam type, wherein the rinsing type hair conditioner comprises the following components in percentage by mass: 0.5-5% of a medicinal plant extract, 0.1-2% of keratin, 4-20% of a hair care conditioner, 0.5-6% of an emulsification thickener and 70-90% of deionized water; the washing-free type hair conditioner comprises the following components in percentage by mass: 0.5-5% of a medicinal plant extract, 0.1-2% of keratin, 1-15% of a hair care conditioner, 0.5-2% of an emulsification thickener, 0.05-5% of a humectant and 75-95% of deionized water; the foam type hair conditioner comprises the following components in percentage by mass: 0.5-5% of a medicinal plant extract, 0.1-2% of keratin, 0.5-3% of a foaming agent, 0.5-5% of a hair care conditioner, 0.2-3% of a solubilizer and 83-94% of deionized water. The hair conditioner can more rapidly and efficiently repair damaged hair and nourish hair.

The invention discloses a biostimulation method for remediation of oil-polluted soil. In the method, on the premise of not adding an oil pollutant biodegrading bacterial agent, a soil conditioner is added to improve the soil environment, reduce soil stickiness, increase the soil permeability, adjust the water-retaining capacity of the soil, adjust inorganic and organic nutrients necessary for local microbe growth, maintain the pH value of the soil close to neutrality, promote oil pollutant degrading microbes in the soil to grow and propagate, and improve the oil pollutant degrading efficiency of the local microbes; by planting plants, the microenvironment of the soil near root systems of the plants is improved, the plants secrete organics with low molecular weight such as amino acid to the root systems so as to stimulate the massive propagation of the local microbes and indirectly promote oil pollutant degradation by the microbes of the root systems; and the biostimulation method has the advantages of accelerating the remediation of the oil-polluted soil and restoring the original state of the soil.

The invention provides a passivation improver for a heavy metal pollution farmland and a using method of the passivation improver. The raw materials comprise coal ash, nano iron powder, zeolite, medical stone, calcium magnesium phosphate, hydroxypropyl modified SiO2/chitosan nanoparticles and porous spherical cellulose. According to the composite passivation improver, the passivation effect on heavy metals cadmium, lead, arsenic and chromium in soil can be improved, copper and zinc in soil are well passivated, and the soil remediation effect is improved.

The invention provides alloy powder used for laser remanufacturing of FV520B martensitic stainless steel parts and a preparation method. The chemical components of the alloy powder include, by weight percentage, 0.01-0.3% of C, 12-17% of Cr, 3-7% of Ni, 0.4-2% of Mo, 0.1-2% of Mn, 0.15-0.55% of Nb, 0-3% of Cu, 0.05-2% of Si, 0-1.6% of B and the balance Fe. The preparation method of the alloy powder is a vacuum melting-high pressure gas atomization method. The alloy powder can have the density and the thermal expansion coefficient which are similar to those of FV520B materials when precipitation hardening elements, deoxygenation slag forming elements and elements used for lowering the martensite phase transformation point are added and the weight percent content of all the elements are regulated; the residual stress level is lowered through the martensite phase transformation accompanying effect; and therefore the problems of cracks, deformation and the like are greatly relieved, and the forming property, the anti-cracking property and the process stability are achieved and improved when the FV520B parts are subjected to laser remanufacturing through the alloy powder.

The invention provides a tissue engineering nerve graft based on a biological printing technology and a preparation method thereof. The tissue engineering nerve graft comprises an outer tube and a tube inside scaffolds, wherein trophic factors and/or cells can cover the inner surface and the outer surface. A high-fidelity printing operation is performed according to the actual nerve shape demand by utilizing the biological printing technology, a polymer solution is printed into the specified nerve graft in a three-dimensional way by using an ink-jet printer by adjusting the sizes and the quantity of the jet nozzles of the ink-jet printer, the distances from the jet nozzles to a bottom layer and the pulse frequency of a supercharger and writing a control program of specific printing, and the specified nerve graft is applied to treatment of peripheral nerve defect and spinal cord injury.

The invention relates to a method for associating plants and microorganisms to accumulate heavy metal cadmium in soil. The method comprises the following steps: firstly planting cadmium accumulated plants in cadmium polluted soil; then inoculating cadmium-resistant bacteria in rhizosphere soil of the cadmium accumulated plants; conventionally culturing, watering and moisturizing; enriching cadmium in cadmium accumulated soil by utilizing the absorption effect of the cadmium accumulated plants to the cadmium and reinforcing effect of the cadmium-resistant bacteria; repeating the process so that the purpose of repairing the cadmium polluted soil can be achieved. The soil repairing method is good in effect, low in cost, easy to manage and operate, and free of secondary pollution, and has a wide application prospect.

The invention discloses asphalt pavement conditioning curing agent and a preparation process. The formulation comprises the following components with percentage by weight, 10-15% refined asphalt, 23-50% organic solution, 3-23% surface modifier, 2-10% functional auxiliary agent and 5-25% regenerative agent. The preparation process comprises conducting reasonable proportioning for refined asphalt, organic solution and regenerative agent, surface modifier and functional auxiliary agent, putting into a stirred tank in turn, starting a stirrer to stir continuously, stirring for 0.5-4h in condensation reflux under the temperature of 60-150 DEG C, and then cooling down to ambient temperature, finally obtaining the product of asphalt pavement conditioning curing agent when the mixture is completely cooled down. The curing agent has simple making art, low device requirement, low usage cost and simple construction technology, which can significant increase penetration degree, softening point and ductility of aging asphalt, beautifies the appearance of asphalt pavement, improves the quality of pavement, increases the cling ability of the pavement, and prolongs the service life of the pavement.

The invention discloses a submerged plant planting device, comprising a buoyancy layer, connection ropes, a submerged plant planting layer, a fixed rope an and anchor, wherein the buoyancy layer is formed by a peripheral frame and 12-20 float bowls fixed on the peripheral frame; the submerged plant planting layer is formed by 10-30 planting bricks connected through connecting pegs; each planting brick is formed by a hollow frame and planting matrix filled into the hollow frame, and can adapt to a plurality of submerged plant propagule such as sprouts, clints, seeds and the like; the buoyancy layer is connected with the submerged plant planting layer through four connection ropes; a connecting peg is arranged at the center part of the submerged plant planting layer and connected with the fixed rope; the other end of the fixed rope is connected with the anchor and arranged at the water bottom; the submerged plant planting layer floats up and down along with water-level fluctuation, but the distance to the water level is kept constant all the time. The planting brick structure and the submerged plant root are good to fit, the device is stable in form for a long period of time, the effect on the submerged plant caused by drastic change of water level and stormy waves can be effectively avoided, and the overall device is simple to assemble, and free of labor management in the actual operation process.

The invention discloses a bioremediation method for petroleum-polluted soil. The method comprises the steps that 1, biomass containing biomass degrading bacteria is added in the petroleum-polluted soil with the petroleum content higher than 18 wt%, and ploughing is performed to mix the soil with the biomass, the water content of the petroleum-polluted soil is simultaneously kept at 10-30 wt%, and first degrading bacteria are added in the soil in 10-15 days after ploughing is performed to reduce the petroleum content of the soil to 8-18 wt%; 2, second degrading bacteria are added in the soil to reduce the petroleum content of the soil to 5-8 wt%; 3, third degrading bacteria are added in the soil to reduce the petroleum content of the soil to 1-5 wt%; 4, forth degrading bacteria are added in the soil to reduce the petroleum content of the soil below 1 wt%. The method can be applied to both in-situ remediation and ex-situ remediation, the remediation effect is good, the remediation time is short, the method is simple, and the cost is low.

The invention relates to an image restoring method, which comprises the following steps: firstly carrying out direction and experience model decomposition on a target image, allowing to draw damaged edge structure information in a given area to be restored according to the existing information, utilizing a frequency characteristic value obtained by the direction and experience model decomposition to calculate similarity so as to firstly finish edge structure restoration in the whole damaged area, then combining degree of confidence to calculate the priority of a residual filling area according to gradient characteristics of pixel points on the boundary of the area to be restored, and utilizing a frequency characteristic value obtained by the decomposition again to calculate similarity so as to finish the restoration of corresponding areas. The method not only can restore the structure and texture information in a larger-scale defective area, but also can restore the images with certain sheltering relation. The robustness in the restoring process is high, thus effectively preventing continuous expansion of error information.

The invention provides a broad spectrum heavy metal activity deactivator preparation method. The present invention relates to a soil conditioning agent preparation method, which comprises the following steps: (A) taking humic acid-rich peat, digest compost or a forest soil humus layer, and carrying out screening to provide a spare use; (B) adding the humic acid-rich material to HCl or HNO3 to soak, and stirring 2-3 times; (C) filtering the soaked material with a bamboo drying pad, washing 2-3 times with clear water, and carrying out air drying to a moisture content of less than 5%; (D) sequentially adding ZnSO4.7H2O, sodium silicate and sodium selenite to the material obtained from the step (C), carrying out aging on the mixed material for 2-3 days and uniformly mixing; and (E) adding limestone powder to the material obtained from the step (D), and completely and uniformly mixing to prepare the broad spectrum heavy metal deactivator. With the combination inhibitor prepared by the preparation method, activities of soil heavy metals can be significantly inactivated, the heavy metals can be inhibited from entering the food chain, and risks on human health by the heavy metals can be reduced.

The invention discloses an in-situ remediation system and method for synergistically removing organic pollutants of soil and underground water. The method comprises the following steps: uniformly injecting chemical oxidants in chemical oxidant mixing storage tank into the soil and the underground water; generating high-temperature steam through a steam generator, and injecting the high-temperature steam into the soil and the underground water; starting a vacuum pump to extract gas from a vacuum extraction well, forming negative pressure in the well, and promoting desorption of volatile and semi-volatile organic compounds from the soil; and treating and discharging the volatile and semi-volatile organic compounds through a gas-liquid separation tank and an activated carbon adsorption tank. The high-temperature steam heat can activate the chemical oxidants so that degradation and removal of the organic pollutants in the underground water can be further accelerated, the underground water organic pollutants which are not completely degraded are further adsorbed, intercepted and degraded through an iron carbon adsorption permeation wall, so that the purpose of synergistically remediating the soil and the underground water is achieved, and secondary pollution of the soil and the underground water is avoided.

The invention discloses a natural plant extract with a sunscreen function and a preparation method and application of the natural plant extract. The natural plant extract is prepared from the following materials (by mass parts): 50-100 parts of Selaginella and 20-60 parts of magnolias. In addition, 30-45 parts of snow lotus and 10-20 parts of jasmine can be added to the above materials as adjuvants, the natural plant extract is obtained by extracting the above raw materials. According to the invention, the effective components of raw materials are extracted by the application of supercriticalfluid technology, and the effective component content in the extract is high. The effective components have high UV absorbing capacity and are capable of scavenging free radicals produced by UV, preventing skin ageing, reducing the generation of melanin and repairing sunburnt skin. The natural plant extract has the advantages of simple in preparation method, stable in quality and high in safety, and can be widely applied in preparation of sunscreen cosmetics.

The polylactic acid film contains polylactic acid 85-98 wt% and medical plasticizer 2-15 wt%, the polylactic acid may be poly L-lactic acid, poly DL-lactic acid, lactic acid-glycolic acid copolymer or the copolymer of poly L-lactic acid and poly DL-lactic acid with molecular weight of 20-1500 KDa, and the medical plasticizer is tributyl citrate, tributyl acetylcitrate, polyethylene glycol or lactic acid oligomer. The polylactic acid composition of the present invention has excellent flexibility, may be used in introducing the growth of hard and soft tissues in repairing cleft palate or as regenerating film, and introducing the regeneration of bone tissue.

The invention discloses a composite modifying agent for restoring farmland polluted soil and a preparation method of the composite modifying agent and relates to the field of modern agriculture. The problem that in an existing polluted soil restoring method, dual restoration functions of soil polluted heavy metal and organic matter cannot be achieved is solved. The composite modifying agent comprises, by weight, 3-9 parts of a composite microbial agent, 40-60 parts of peat soil, 30-50 parts of straw powder, 3-5 parts of cake powder, 0.1-0.3 part of quick lime, 0.2-0.4 part of dipotassium phosphate, 0.5-1.5 parts of ammonium sulfate, 20-40 parts of diatomite, 20-40 parts of humic acid, 20-40 parts of zeolite, 5-15 parts of active carbon, 1-3 parts of sepiolite and 1-3 parts of chitosan. The composite modifying agent can effectively remove heavy metal in the soil and degrade organic pollutants in the soil, has dual restoration functions, cannot cause secondary pollution and can increase the crop yield; and cost is low, the restoration time is short, preparation is easy and convenient, and the restoration effect is good.

The invention provides a system for repairing polycyclic aromatic hydrocarbon contaminated soil. The system is provided with soil pretreatment equipment, chemical oxidation equipment, thermal desorption equipment, soil accumulation equipment and flue gas dust removal equipment in sequence. Conveying belts are arranged between the soil pretreatment equipment, the chemical oxidation equipment, the thermal desorption equipment and the soil accumulation equipment. The thermal desorption equipment communicates with the flue gas dust removal equipment through a pipeline. The soil accumulation equipment communicates with the soil pretreatment equipment through a pipeline. The invention further provides a method for repairing the polycyclic aromatic hydrocarbon contaminated soil. According to the system and method for repairing the polycyclic aromatic hydrocarbon contaminated soil, chemical oxidation and low-temperature thermal desorption are combined, and therefore the removal rate of polycyclic aromatic hydrocarbon of the soil can reach 99%, the repairing effect of the contaminated soil can be effectively improved, and the repairing period can be effectively shortened.

The invention discloses a hydraulic support plunger outer surface laser cladding repairing method. The hydraulic support plunger outer surface laser cladding repairing method comprises the following steps that firstly, turning is carried out on the outer surface of a hydraulic support plunger to be repaired to remove a fatigue layer and an electroplated layer on the outer surface of the hydraulicsupport plunger, and the outer surface of the hydraulic support plunger is washed; secondly, iron-base alloy powder for laser cladding is put into laser cladding equipment, the laser cladding equipment is used for carrying out laser cladding on the outer surface of the hydraulic support plunger, and a laser cladding layer is formed; thirdly, rough turning is carried out on the hydraulic support plunger which is subjected to laser cladding; fourthly, abrasive machining and polishing treatment are carried out on the hydraulic support plunger which is subjected to rough turning, and the roughnessRa of the outer surface of the polished hydraulic support plunger is smaller than or equal to 0.4; and fifthly, checking and flaw detection are carried out on the outer surface of the polished hydraulic support plunger, and laser cladding repairing of the outer surface of the hydraulic support plunger is completed after it is ensured that no defect exists. The laser cladding layer formed throughthe repairing method is high in hardness, large in thickness and high in corrosion resistance and longer in service life.