91results about How to "Guaranteed long-term effectiveness" patented technology

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 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 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 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 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 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 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.