92results about How to "Guaranteed long-term effectiveness" patented technology

The invention discloses a method for reducing the content of cadmium in middle rice. The method includes the following steps that after middle rice of the first year is harvested, middle rice straw is returned to the field directly, and tillage is conducted so that the middle rice straw can be evenly mixed with soil; hyperaccumulation plants are planted in a paddy; after the hyperaccumulation plants are removed from March to May in the second year, soil heavy metal passivator is scattered on the surface of soil of the paddy; tillage is conducted, and base fertilizer is applied 3-5 days later; tillage is conducted, and rice is transplanted; during planting of rice, a foliar resistance control agent is sprayed in the later tillering stage and the booting stage of rice respectively, wherein spraying time interval is 5-10 days; field drying is conducted in the later tillering stage, natural drying is conducted in the maturation stage, and flooding irrigation is conducted in other development stages. According to the method, crop production and straw resource utilization are not affected, the dual targets of reducing the paddy soil cadmium content and reducing the rice cadmium content are achieved under the combined action of plant extraction, soil passivation, foliar resistance control and water management, and effects are more remarkable compared with other combination technologies.

In the present invention an embryo or adult cornea epithelium is cut, digested with digesting liquid and centrifugated to prepare single cell suspension, and the cell suspension is cultured in culture dish or bottle with proper amount of culture medium and CO2 in 5% at 37 deg.c. The cultured cell is passed after cell converges to 80-90% and the second and sixth generation of cell is passed directly to amnion for culture for another 8-20 days to obtain the stem cell regenerating surface cornea of the present invention. The stem cell regenerating surface cornea may be used as material for treating corneal disease. The present invention provides a new material for treating corneal disease with rich material source, no danger of mouse-originated pollution, no or slight immunological rejection.

The invention relates to a power-free reverse-water-pressurizing self-recovery slope high-lift siphon drainage system and drainage method adaptive to accumulation member slope drainage of rich rainfall areas. The system includes an automatic drainage system and an automatic recovery system. The automatic drainage system comprises a siphon drainage hole, a high-lift siphon drainage tube and a siphon water storage tube; the automatic recovery system comprises a water collecting blind groove, a water collecting case, a water feeding pipe,a two-way water incoming and draining valve and the like. The high-lift siphon drainage system with the lift more than 5cm is utilized, and the excessive underground water in the slope can be drained automatically, efficiently and timely; reverse water feeding is performed on the automatic drainage system by the automatic recovery system to start siphon, the air accumulated in the siphon pipe can be exhausted, and long effective period of a forward siphon system is guaranteed; the system is simple in structure, the power is omitted, the discharging effect is fine, the continuity and applicability are high, and the maintaining cost is low.

The invention discloses a graphene / molybdenum disulfide composite lubricant and preparation and application thereof; the preparation method comprises the steps of 1) mixing in a solvent, graphene oxide solution, a molybdenum source and a surfactant at room temperature according to the mass ratio of 1:(10-20):(20-35), adding a sulfur source, stirring well to obtain a precursor solution having a molar ratio of the sulfur source to the molybdenum source being greater than 2:1; 2) adding the precursor solution of step 1) into a polytetrafluoroethylene reactor at 180-240 DEG C, preferably at 210-240 DEG C, and reacting for 12-36 h, preferably for 24-36 h; 3) washing the suspension and filtered material of step 2) with deionized water 3 times and absolute ethyl alcohol 3 times, and drying in a vacuum oven at 60 DEG C for 12 h; 4) thermally treating the product of step 3) in a quartz boat under the protection of an inert gas to obtain the graphene / molybdenum disulfide composite lubricant. The graphene / molybdenum disulfide composite lubricant of the invention has excellent antifriction property and is an excellent green environment-friendly basic oil additive.

The invention relates to a construction method of a marine ranch with a wave eliminating function. The construction method comprises the following steps: in an off-shore sea area, adopting a steel pipe pole for constructing a plurality of rows of spaced arrays along a wave approaching direction, and forming a steel pipe pole reef cluster in matrix arrangement; compounding a plurality of reef balls and / or old tires at intervals along the length direction on the steel pipe pole to form a compound reef body; constructing a plurality of rows of suspended raft seaweed cultivation belts along the wave approaching direction on the back wave surface of the steel pipe pole reef cluster; arranging a plurality of rows of fish aquaculture net cages along the wave approaching direction on the back wave surface of the raft seaweed cultivation belts; and constructing a frame type shellfish culture net cage in an off-shore area. The construction method provided by the invention has the advantages that over-fishing is prevented while a long-time habitat is provided for benthic organisms, the effect of reducing the wind and waves is achieved by virtue of reasonable resource allocation, and output of aquaculture is guaranteed.

The invention provides a chemiluminescent immunoassay kit for detecting clenbuterol, and the kit belongs to the field of immunoassay. The kit is composed of a non-transparent white enzyme-labeled plate which is coated by a clenbuterol-carrier protein cross-linked complex, a clenbuterol standard product, a clenbuterol-peroxidase-labeled antibody, luminescent substrate solution and concentrated buffer solution. The clenbuterol-carrier protein cross-linked complex is obtained by coupling the clenbuterol and a carrier protein through the mixed-anhydride method or the direct protein activation method, and the concentrated buffer solution contains Tween-20 buffer solution. The kit has the advantages of rapidness, simpleness, high sensitivity, low detection cost, good repeatability, high throughput, and the like, and the kit can be used in the detection of residual clenbuterol in animal urine, blood, tissues, visceral organs and other samples.

The invention discloses a pharmaceutical balloon and a preparation method thereof. The pharmaceutical balloon comprises a balloon, a hydrophilic layer and a drug layer. The hydrophilic layer is formedon the surface of the balloon, and the drug layer is formed on the surface of the hydrophilic layer. The hydrophilic layer comprises a hydrophilic polymer, and the hydrophilic polymer is selected from at least one of polyvinylpyrrolidone, polyacrylamide, polyethylene glycol and polyvinyl alcohol. The drug layer comprises drug microspheres, and each drug microsphere comprises a drug and a degradable polymer covering the drug. The drug carrying layer of the pharmaceutical balloon can release the drugs stably for a long time.

The invention discloses a biological profiling and plugging agent, a preparation method and an application, which belongs to the technical field of oil field chemistry. The biological profiling and plugging agent consists of the following components by weight percent: 5 to 20 percent of capsulation strain dry powder, 0.4 to 16 parts of nutrient medium, 0.1 to 2 percent of bacteria amount adjusting agent and the balance of water. The biological profiling and plugging agent has characteristics of good salt resistance and good cutting resistance; moreover, the biological profiling and plugging agent is unlikely to degrade, and after the biological profiling and plugging agent is injected into deep stratum, a purpose of depth profile control can be realized. By adopting the capsule particles, the survival rate of the strain can be increased; the capsule particles pass through large pores along with injection liquid and are remained in an area with a pore radius smaller than the radius of the particle so as to form effective plugging, and the swept volume of the injection liquid can be increased; meanwhile, by adjusting the injection amount of the nutrient medium and strain adjusting agent, the growth situation of the flora can be controlled, the profile control or plugging controllable requirement can be met, and the plugging effect is kept effective for a long time.

The invention provides a chemiluminescence immune detection kit for detecting a pro-gastrin-releasing peptide; the chemiluminescence immune detection kit is composed of a non-transparent white elisa plate coated with the pro-gastrin-releasing peptide, a pro-gastrin-releasing peptide standard, a pro-gastrin-releasing peptide-peroxidase labelled antibody working liquid, a luminous substrate liquid, a concentrated sample diluent and a concentrated detergent. A pro-gastrin-releasing peptide protein conjugate is obtained by coupling the pro-gastrin-releasing peptide with a carrier protein by a mixed anhydride method or a carbodiimide method, and the concentrated detergent contains 0.05% of Twain-20. Compared with a conventional enzyme-linked immunosorbent assay, the kit has higher sensitivity, is short in detection time and low in cost, and can be used for detection of the pro-gastrin-releasing peptide in human blood or serum.

The invention discloses a broken yarn detecting circuit for a yarn feeder, wherein the yarn feeder comprises a front broken yarn detector and a rear broken yarn detector. The rear broken yarn detectorcomprises a rear broken yarn detecting circuit and a non-contact inductive switch which is connected in series in the rear broken yarn detecting circuit and is used for sensing the change of the working condition of the yarn. The broken yarn detecting circuit is characterized in that the rear broken yarn detecting circuit comprises a first rectifier bridge, a sampling circuit, an isolating circuit and a signal driving circuit, wherein, the sampling circuit is for collecting a broken yarn signal and is connected with the non-contact inductive switch in series, the isolating circuit is used forisolating an interference signal and the signal driving circuit is used for feeding back the broken yarn signal to the yarn feeder host. Compared with the prior art, the non-contact inductive switchis installed on the broken yarn detector in the invention, and the defect of the poor contact of a traditional touch switch after a long-time use is avoided. In addition, the isolating circuit is increased, thereby implementing the secondary isolation to the interference signal and ensuring the working reliability of the broken yarn detector.

The invention discloses a deceleration strip with fluorescent display strips, and belongs to the field of public facilities. The deceleration strip is composed of a deceleration strip rubber body and the fluorescent display strips capable of being embedded in the deceleration strip rubber body. Rubber body installation holes are formed in the rubber body, the cross section is of an arc-shaped structure of a traditional rubber deceleration strip, grooves where the fluorescent display strips are installed are formed in the deceleration strip rubber body, the number of the grooves, where the fluorescent display strips are installed, in the deceleration strip rubber body is four, the grooves are symmetrically and evenly distributed with respect to the center line of the cross section of the deceleration strip cross section, the cross section of each fluorescent display strip is in a T shape, the size of the shape of the cross section of each fluorescent display strip is optimized to be 20mm in total height, 10mm in lower portion width and 13mm in lower portion height, and the upper portions of the fluorescent display strips are of horn mouth structures with 90-degree central angles. Fluorescent powder used in the fluorescent display strips are photoinduced energy-stored type rare earth aluminate type fluorescent powder. Thedeceleration strip has the advantages that thedeceleration strips installed on the deceleration lamp can emit light at night, and traffic accidents, caused by the fact that lamplight does not exist, to pedestrians by the deceleration strip are avoided.

The invention discloses a borrowed-soil remediation method for heavy metal contaminated soil in an orchard. The method comprises the steps of trench digging operation, blocking operation, soil covering operation and laying of an irrigation system, wherein the blocking operation is divided into blocking in the circumferential direction and blocking in the vertical direction, and the blocking operation can effectively avoid contact of borrowed-soil new soil with the original contaminated soil and prevent secondary pollution to the borrowed-soil uncontaminated new soil caused by natural or man-made processes such as natural rainfall leaching flushing, seepage, irrigation, underground water surging. The method provided by the invention adopts a manner of digging trenches to remediate the contaminated soil in the orchard, so that the engineering amount of covering of borrowed soil can be reduced, a large amount of excavation and transportation costs are saved, and the method is suitable forremediation of the heavy metal contaminated soil in the orchard; and meanwhile, the irrigation system is laid on the surface of the borrowed soil to effectively induce growth of roots of fruit treesto shallow soil, so that the depth requirement of the borrowed soil is reduced, and the costs of covering of the borrowed soil are effectively reduced.

The invention discloses a smart monitoring system for the empty-nest elderly, which includes an embedded control device and a cloud platform. The embedded control device is composed of four parts: an acquisition module, a processing module, a communication module, and a power supply module. Program, database, web program and PAD terminal program, the intelligent monitoring system for the empty-nest elderly can use the infrared detection module to detect the activities of the empty-nest elderly by setting embedded control equipment, which is more conducive to protecting the elderly than installing a camera Privacy, which solves the problem of high wiring costs for empty-nest elderly living in scattered and separate construction, and is equipped with a cloud platform that can receive status information regularly sent by embedded control devices. When it is conscious, it can automatically call the police and notify the community service personnel through the community PAD terminal program, which can effectively solve the problems in the background technology.

The invention discloses a preparation method of a self-emulsifying internal and external double-effect antibacterial essence microcapsule. The preparation method comprises the following steps: respectively preparing a chitosan quaternary ammonium salt aqueous solution and a sodium polyacrylate aqueous solution, respectively adding oil-soluble antibacterial natural essence into the chitosan quaternary ammonium salt aqueous solution and the sodium polyacrylate aqueous solution, obtaining a first emulsion and a second emulsion, mixing the first emulsion with the second emulsion, adding a crosslinking agent, and obtaining the self-emulsifying internal and external double-effect antibacterial essence microcapsule. According to the preparation method of the self-emulsifying internal and externaldouble-effect antibacterial essence microcapsule, by optimizing a formulation of a capsule wall, the capsule wall of the essence microcapsule is prepared without adding an additional surfactant, so that the production cost of the essence microcapsule is reduced, the capsule wall and the capsule core of the essence microcapsule are endowed with an antibacterial function, and the antibacterial properties of the essence microcapsule are enhanced; moreover, a skin allergic phenomenon of a user is effectively reduced because no additional small molecule surfactant is added.

The invention discloses an arched base pavement structure. The arched base pavement structure comprises two road shoulders, prestress pull rods, a soil base course, a subbase course, a base course, a middle course and an upper surface course, wherein the soil base course, the subbase course, the base course, the middle course and the upper surface course are arranged between the two road shoulders and distributed from bottom to top in sequence; the base course is of an arched structure; the soil base course is provided with a plurality of pairs of reinforcement supporting components; the two ends of the base course are located on two of the multiple pairs of reinforcement supporting components; and one ends of the prestress pull rods are fixed to the outer side surface of the first road shoulder, and the other ends of the prestress pull rods penetrate through the first road shoulder, the base course, the subbase course and the second road shoulder and are fixed to the outer side surface of the second road shoulder. According to the arched base pavement structure, bottom course tensile stress of an asphalt pavement or top surface compression strain of the soil base course can be effectively reduced, fatigue damage of the asphalt pavement is reduced, and the service life of the asphalt pavement is prolonged.

The invention discloses a crosslinked polyethylene cable insulating material containing a compounding agent with high electrical resistance and a preparation method thereof, belongs to the technical field of electrical materials, and solves the problems that when an existing voltage stabilizer improves the voltage resistance of the crosslinked polyethylene insulating material, the wide-temperature-range high efficiency and long-term compatibility of the voltage stabilizer cannot be considered at the same time, and the electrical tree resistance and breakdown resistance of crosslinked polyethylene at different temperatures cannot be comprehensively improved. The voltage stabilizer used in the invention comprises a six-membered chelate ring structure composed of hydroxyl, carbonyl and a benzene ring, the grafting reaction of vinyl ensures the uniform and stable dispersion of the voltage stabilizer, and the voltage stabilizer forms a uniform and dense electron action space in a polymer due to a larger molecular structure and electron conjugate surface, and thus the electronic energy consumption effect of the chelate ring is fully exerted, and the electrical tree resistance and the breakdown strength of the material in the whole use temperature range of a cable insulation layer are remarkably improved.

Belonging to the technical field of industrial compound environmental hormone detection, the invention provides a chemiluminesent immunoassay kit for detection of bisphenol A. The kit provided by the invention is composed of a non-transparent white enzyme-labeled plate coated with a bisphenol A-carrier protein conjugate, a bisphenol A standard substance, a bisphenol A-peroxidase labeled antibody working solution, a luminescent substrate solution, a concentrated sample dilution solution, and a concentrated washing solution. The bisphenol A-carrier protein conjugate is obtained by coupling bisphenol A and carrier protein through a mixed anhydride method or a carbodiimide method, and the concentrated washing solution contains 0.05% Tween-20. Compared with the traditional enzyme linked immunosorbent assay method, the kit provided by the invention has the advantages of higher sensitivity, short detection time and low cost, and can be used for detection of residual bisphenol A in an environmental water sample.

The invention provides a composite medicament for repairing low concentration chromium contaminated soil and a use method thereof. The composite medicament mainly contains reduction agent ferrous sulfate and natural materials rich in humic acid and small organic acids, repair effect of the same is long, and the preparation method thereof is simple. Use method of the composite medicament includes pretreatment of the contaminated soil and restoration process of an ectopic repair pond. The composite medicament for repairing low concentration chromium contaminated soil and the use method thereof have the advantages of solving the problem that chemical reduction and repair of the chromium-contaminated soil is often faced with re-precipitation of Cr(VI) (hexavalent chromium) after the repair isup to standard, and achieving long-term repair effects of repairing Cr(VI) pollution in the soil and inhibiting precipitation with the use of the novel composite slow-release medicament. Furthermore,orange peel, grapefruit peel, leaves and other sources are abundant, cost is low, and secondary pollution is effectively prevented.

The invention discloses a wheat ecological grass control planting method for comprehensively utilizing rice stubble and green manure. The method comprises the following steps of (1) sowing milk vetchbefore rice harvesting, (2) bundling rice straws to from rice straw bundles by using a self-propelled straw bundling and sowing integrated machine after the rice harvesting, ditching a rice field andplacing the straws in field ditches for returning and decomposing, and (3) performing wheat sowing in lines in the field by using the self-propelled straw bundling and sowing integrated machine. According to the method, by sowing the milk vetch before the rice harvesting, carrying out concentrated ditch returning and decomposing on the straws after the rice harvesting and performing wheat sowing in lines in the field, the soil fertilization and weed control can be achieved, and the reduction of fertilizers and pesticides is achieved while the crop yield and quality safety are ensured.

The invention is suitable for the motor field and provides a bearing electric corrosion prevention structure of a plastic package motor. The structure comprises a first bearing bracket, a second bearing bracket arranged on the other side of a stator assembly, a plastic package shell packaged outside the stator assembly and the first bearing bracket and a metal conduction component which is conductively connected between the first bearing bracket and the second bearing bracket. The metal conduction component is an integrated structure and comprises a first conductor which is packaged in the plastic package shell and is conductively connected to the first bearing bracket, a second conductor which is arranged outside the plastic package shell and is conductively connected to the second bearing bracket and a flexible conductive body which is conductively connected between the first conductor and the second conductor and can be bent so as to adjust an included angle between the first conductor and the second conductor. The metal conduction component is conductively connected to the first bearing bracket and the second bearing bracket so that conductive reliability is high. Installation is convenient. Aging failure and shedding phenomena are not generated. Long-term reliability of bearing electric corrosion prevention performance of the plastic package motor is guaranteed.

The invention discloses a wet process purification device and method for air. The purification device comprises a controller and a water circulation channel and an air purification channel which are controlled by the controller; the water circulation channel comprises a cylindrical shell with an open upper end, the upper part of the shell is provided with a mesh vent hole, the bottom of the shellis provided with a water return tank having a sealed structure, and the middle of the shell is provided with a middle water storage container communicating with the water return tank; and the outer ring of the middle water storage container is provided with a water filter tank having an annular structure, a water spray filter net is arranged under the water filter tank, the air purification channel comprises an air pump and a gas discharging pipe, and gas outlets of the gas discharging pipe are arranged between the middle water storage container and the water spray filter net. According to thewet purification device for the air provided by the invention, circulating water flows through the filter net to realize air purification, a circulating water system is adopted to realize water cleaning treatment, long-term effective operation of the purification equipment is conveniently maintained, and the device has simple maintenance and low costs.

A double-heating-layer thermal insulation device for an SERF atom air chamber comprises an external heat insulation layer, an intermediate heating layer, an internal heating layer, a nonmagnetic heating plate, a temperature sensor and a digital PID control based heating system. The atom air chamber clings to the internal heating layer, the nonmagnetic heating plate and the temperature sensor are arranged in the surfaces of the internal and intermediate heating layers, and the temperature sensor collects a temperature electric signal and feeds back the signal to the digital PID control based heating system to realize heating control of the internal and intermediate heating layers. The large-power intermediate heating layer carries out heating for long time to realize 0.1 DEG C level of stable control for the internal system, the small-power internal heating layer carries out heating for long time to realize high-stability temperature control greater than 0.1 DEG C level for the atom airchamber, and the external heat insulation layer made of a polytetrafluoroethylene material can avoid temperature imbalance caused by high and low temperature impact.

The invention provides a chemiluminesent immunoassay kit for detecting fipronil in tea, and belongs to the field of the immunological detection. The kit is composed of an opaque white ELISA plate coated with fipronil-carrier protein conjugate, fipronil standard substance, fipronil-peroxide enzyme-labeled antibody working solution, luminous substrate fluid, concentrated sample diluents, and concentrated washing solution. The fipronil-carrier protein conjugate is obtained by coupling the fipronil and the carrier protein through a mixed anhydride method or carbodiimide method; the concentrated washing solution contains 0.05% of tween-20. Compared with the traditional enzyme linked immunosorbent assay, the kit disclosed by the invention has higher sensitivity, and is low in detection time andlow in cost, and can be used for detecting the residual quantity of the fipronil in the tea sample.

The invention relates to a system and method for improving abrupt slope tree growth and water and soil loss, and belongs to the technical field of ecological landscape and sponge city construction. The system comprises fine-particle-size structure soil layers, large-particle-size structure soil layers, siphon drainage pipes, planting holes and planted trees, wherein the fine-particle-size structural soil layers are arranged at the bottoms of the planting holes, and the large-particle-size structural soil layers are arranged above the fine-particle-size structural soil layers and around the planting holes; and the siphon drainage pipes are installed between the fine-particle-size structure soil layers at the bottoms of the adjacent planting holes. A double-layer structure soil structure is utilized, and the soil with different particle sizes is mounted in a layered manner according to the difference of the soil infiltration rates of the soil with different particle sizes, so that the purposes of quickly infiltrating and accumulating rainwater and reducing water and soil loss are respectively achieved; and the water head difference existing in rainwater collection of the abrupt slope in the rainfall period is fully utilized, the siphon drainage pipes are ingeniously and specially installed to achieve siphon phenomenon linkage and automatic rapid drainage between the planting holes of different elevations, drainage pipeline blockage is reduced, and long-term effectiveness of drainage is ensured.

The invention provides a chemiluminiscence immunoassay kit for detecting zilpaterol, and belongs to the field of immunological detection. The kit comprises a non-transparent white ELISA plate coated with a zilpaterol-carrier protein conjugate, a zilpaterol standard substance, a zilpaterol-peroxidase labeled antibody working solution, a luminescent substrate solution, a concentrated sample diluent and a concentrated washing liquid. The zilpaterol-carrier protein conjugate is obtained by coupling zilpaterol and a carrier protein through a mixed anhydride method or a carbodiimide method, and the concentrated washing liquid contains 0.05% of Twain-20. Compared with a traditional enzyme-linked immunosorbent assay method, the kit has higher sensitivity degree, is short in detection time and low in detection cost, and can be used for detection of the residual amount of zilpaterol in animal urine, blood samples, tissues, viscera and other samples.

The invention relates to a milk white or colorful magnetic fiber filament meeting the textile color requirement and a preparing method thereof. The milk white or colorful magnetic fiber filament is characterized in that the magnetic fiber filament is of a skin-core structure, and a skin layer material and a core layer material of the magnetic fiber filament adopt polyamide / polyester chips which are different in polarity respectively, wherein the skin layer material of the magnetic fiber filament comprises color master batches, and the core layer material of the magnetic fiber filament comprises magnetic master batches. According to the milk white or colorful magnetic fiber filament meeting the textile color requirement and the preparing method thereof, a milk white or colorful magnetic fiber effectively isolates air and water of the magnetic master batches in the core layer material through the polyamide / polyester chips with the different polarities in the core layer material and the skin layer material, the long-term effect of filter magnetism is guaranteed, and the single color problem in the existing magnetic fiber preparing technology is solved by adding the color master batches into the skin layer material.

The invention relates to a self-repairing cement-based composite material as well as a preparation method and application thereof. The self-repairing cement-based composite material comprises a cement base material and a self-repairing component, wherein the cement base material comprises cement and polyvinyl alcohol fibers; the self-repairing component comprises self-repairing particles and a calcium source substrate; the self-repairing particle is composed of a porous carrier, an internal component and an outer protective wall; and the internal component is carbonate, the internal component is loaded on the porous carrier, and the outer protective wall is coated on the outer surface of the porous carrier. The self-repairing speed, efficiency and self-repairing effect are improved. The durability of the cement-based material can be improved.

The invention provides a preparation of a chemiluminescence immunoassay kit for detecting chloroquine and belongs to the field of immunological detection. The kit is composed of: a non-transparent white enzyme label plate coated by a chloroquine-carrier protein conjugate, a chloroquine standard substance, a chloroquine-peroxidase marked antibody operating fluid, a luminescent substrate liquid, a concentrated sample diluting liquid and a concentrated washing liquid. The chloroquine-carrier protein conjugate is prepared by coupling chloroquine to a carrier protein in a mixed anhydride method or a carbodiimide method. The concentrated washing liquid contains 0.05% of tween-20. The kit is higher in sensitivity, is short in detection time, is low in cost and can be used for detection of residual amount of the chloroquine in samples such as fruits, crops and vegetables and the like.