92results about How to "Effective infiltration" patented technology

The invention provides a method and a device for self-recovery current limiting and circuit breaking by using conductive fluid and magnetic fluid, belonging to the electric and automatic control field. The device comprises a main body and an auxiliary body; an encapsulated casing of the main body forms a closed cavity with an outside solid electrode terminal; the cavity is filled with conductive fluid and magnetic fluid hierarchically; when the number of the cavity is more than one, the cavity is internally provided with clapboards which is provided with inside solid electrode terminals; the cavity volume is divided by the clapboards equally, and each cavity is filled with the conductive fluid and the magnetic fluid hierarchically; the auxiliary body comprises a magnetic field generating device and a temperature regulating device; the main body part and the magnetic field generating device are accessed into a controlled circuit; when fault current exists in the controlled circuit, themagnetic field generating device generates large enough gradient magnetic field to rapidly separate the magnetic fluid from the solid electrode terminal so as to realize rapid breaking of circuits. Asthe response time is in a millisecond level, the invention can effectively protect security of electronic equipment and solves the problems such as contact burning, difficult breaking and the like, and the device has the self-recovery function.

The invention belongs to the field of coatings and particularly relates to single-component white waterborne adhesion primer and a preparation method thereof. The high-performance and single-component white waterborne adhesion primer comprises a part A and water, wherein the part A comprises components in percentage by weight as follows: 25%-30% of waterborne single-component polyurethane, 8%-10% of a waterborne acrylic emulsion, 5%-10% of waterborne silica sol, 0.5%-1.0% of an adhesion promoter, 3.9%-6.3% of a function auxiliary, 31%-45% of filler and 10%-15% of water. The problems of hot sticking, cold shortness, high probability of cracking through thick coating and difficulty in adhesion of an oily substrate of conventional single-component white primer are solved, and the high-performance and single-component white waterborne adhesion primer contains few volatile organic solvents and meets the environment-friendly requirement.

The invention discloses oil-filled and graphene oxide emulsion-filled co-coagulated rubber and a preparation method thereof. The co-coagulated rubber comprises the following main components by weight parts: 100 parts of rubber, 1-40 parts of oil, 1-20 parts of graphene oxide and 0.1-5 parts of an anti-ageing agent. The preparation method comprises the following steps: adding graphene oxide suspension liquid and the anti-ageing agent into rubber latex, and stirring at 30-60 DEG C for 0-30 minutes to obtain a mixture; adding emulsified oil into the mixture and stirring for 1-10 minutes; and adding a flocculant for flocculating, dewatering and drying to prepare the oil-filled and graphene oxide emulsion-filled co-coagulated rubber. The method is simple and feasible, low in cost and easy for industrialized production, and has good economic and social benefits. The oil-filled and graphene oxide emulsion-filled co-coagulated rubber prepared by adopting the method is relatively high in tensile strength, stress at definite elongation and tear strength and low in wear volume, and the characteristics of high reinforcement and high wear resistance of graphene oxide are fully reflected.

The invention mainly discloses a surface water recycling system for a sponge city. The surface water recycling system comprises a pure water storage system, a sewage treatment system and a water flow control system, wherein the pure water storage system comprises a first water well, a second water well and a circulation well which are connected with one another; the sewage treatment system comprises a first sewage treatment device located in the first water well and a second sewage treatment device located in the second water well. The surface water recycling system can realize effective percolation, treatment and collection of surface water, improves the water quality and facilitates surface water recycling. A construction method of the surface water recycling system comprises steps of ground treatment, foundation pit treatment, building of the water wells, installation of the sewage treatment system, building of the circulation well, laying of filtering plates, laying of internal pipes, laying of water guide pipes and ground surface treatment. The construction method is reasonable in design and adopts simple and reliable construction steps, the construction steps are joined and arranged properly, accumulated water can be guided effectively to infiltrate to underground, and the effect of sufficiently recovering rainwater and surface water is realized.

The invention belongs to the technical field of batteries, and particularly relates to a lithium- supplementing-treated negative pole piece and a lithium ion battery thereof. The lithium-supplementingnegative pole piece provided by the invention comprises a negative current collector and a negative active material layer which is arranged on at least one surface of the negative current collector and contains a negative active material, a lithium supplementing layer is arranged on the surface, far away from the current collector, of the negative active material layer, and the lithium supplementing layer comprises a lithium supplementing region and a gap region; the lithium supplementing region and the gap region are connected with each other in sequence, the lithium supplementing region andthe gap region meet the condition that A / (A+B) is larger than or equal to 3.3*10<-3> and smaller than 0.98, A is the width of the lithium supplementing region, B is the width of the gap region, and Aand B are measured values in the extending direction of connection of the lithium supplementing region and the gap region. According to the negative pole piece provided by the technical scheme, the heating problem of the pole piece is effectively solved, the electrolyte can more effectively infiltrate the negative pole piece after the lithium ion battery is filled with the electrolyte through thechannel formed by the lithium supplementing region and the gap region, the energy density of the battery is improved, the cycle life of the battery can be prolonged, and the dynamic performance of the battery can be improved.

The invention provides a light cold-mixed resin steel bridge deck pavement material. The steel bridge deck pavement material consists of cold-mixed resin, mineral aggregate and fibers, wherein the mass ratio of the cold-mixed resin to the mineral aggregate is (11-20):100; the mineral aggregate comprises light high-strength coarse aggregate, fine aggregate and mineral powder; the mass percentage of the light high-strength coarse aggregate in the mineral aggregate is 20-45 percent; the fibers are chopped steel fibers, and the total mass is 0.5-2 percent of the mass of the steel bridge deck pavement material. The steel bridge deck pavement material is low in density and high in performance, and can play a role in reducing the constant load on a steel deck on the premise of keeping the thickness of a bridge deck pavement structure invariable; or the rigidity of a deck system is enhanced by increasing the thickness of a pavement layer under the condition of keeping the constant load on the deck invariable.

The invention discloses a whitening and moisturizing facial mask and a preparation method thereof, comprising water, moisturizing agent, thickener, preservative, solubilizer, nicotinamide, lanolin, glycerin polymethacrylate, knotweed extract, chamomile extract Extract, tea leaf extract, licorice root extract, scutellaria baicalensis extract, rosemary extract, tocopherol, panthenol. After the mask is used, the present invention can still absorb water externally and lock water internally, achieve long-term water-locking and deep moisturizing effects, reduce the risk of skin melanin formation due to lack of water, ensure whitening effect, and the whitening effect is more stable and long-lasting. In addition, the present invention whitens the skin by inhibiting melanin production, inhibiting the activity of pigment cells, and enhancing the antioxidant capacity of the skin. effect.

The invention provides a vertical flow wet-type electric precipitator and wet electric precipitation method. The vertical flow wet-type electric precipitator comprises an annular plate, a spray humidifying layer, a flue gas uniform distribution device, a dust removing electric field area, washing and spraying layers, a plurality of insulator boxes, an atomization water tank and a process water tank, wherein the spray humidifying layer comprises a fine atomizing nozzle and a spray pipeline; flue gas sequentially passes through the annular plate, the spray humidifying layer and the flue gas uniform distribution device; the dust removing electric field area is used for blocking a baffle board of a flue gas blind area; the washing and spraying layers are arranged above the dust removing electric field area; the wet electric precipitation method comprises the following steps: a continuous manner is adopted to conduct atomization and humidification on inlet flue gas and conduct uniformly distributed optimization treatment on the flue gas; an intermittent or continuous manner is adopted to conduct sprinkling and cleaning on a dust-collecting electrode and a discharge electrode; a method of hot air sweeping is adopted to ensure insulation. The vertical flow wet-type electric precipitator and the wet electric precipitation method can effectively ensure the high-efficient and stable operation of the vertical flow wet-type electric precipitator, optimize the fluid field, and strengthen turbulence and atomization of the flue gas; local micro-mixing, and collision as well as crash coagulation of fine particles are promoted; the dust removal efficiency is improved.

The invention belongs to the technical field of high polymer materials, and relates to a continuous glass fiber reinforced PP (polypropylene) plate as well as a preparation method thereof. The plate is prepared from the following components in parts by weight: 10-20 parts of PP resin, 50 parts of continuous glass fibers, 30-40 parts of PP-based flame retardant master batch, 0.3-0.5 part of a primary antioxidant, 0.9-1.5 parts of auxiliary antioxidants, 0.15-0.2 part of a primary aging-resistant agent and 0.15-0.2 part of auxiliary aging-resistant agents. The continuous glass fiber reinforced PP plate provided by the invention has efficient flame retardance, a high mechanical property and a favorable compound property; additionally, the flame retardants, the antioxidants and the aging-resistant agents in the bidirectional continuous glass fiber reinforced PP resin compound material cannot generate side effects, and the aging-resistant agents and the antioxidants take effect altogether, so that not only is the stability of a base body protected, but also the stability of the flame retardants is protected, and the permanent flame retardance of the material is kept.

The invention discloses a SiC hollow sphere and a preparation method of same. The preparation method includes the steps of: 1) mixing raw materials, including flake graphite, starch and water, and forming carbon template spheres in a pelletizing machine, placing the carbon template spheres in a roll-forming machine, adding SiC powder, in several batches, into the roll-forming machine to form a SiChollow sphere green body internally coated with the carbon template sphere, and drying and calcining the green body to remove the carbon template sphere to obtain a SiC hollow sphere green body; 2) compacting the surfaces of the SiC hollow sphere green body in the step 1) through a precursor vacuum impregnation pyrolysis process or a chemical vapor deposition process. The light-weight and high-strength SiC hollow sphere has high density and high compression resistance, has uniform and controllable size and smooth and compact surface, can reach 10-50 MPa in compression resistance, and can be widely applied to light packing, catalysis materials, heat preservation and insulation materials, fire-proofing and water-proofing materials, anti-radiation materials, etc.

A multi-stage treatment and recovery system for PET release films comprises a mechanical dust removal mechanism, a cleaning mechanism, a drying mechanism and a winding mechanism, wherein the release film sequentially passes through the mechanical dust removal mechanism, the cleaning mechanism and the drying mechanism and is wound on the winding mechanism; traveling of the release films in the mechanical dust removal mechanism, the cleaning mechanism, the drying mechanism and the winding mechanism and transition among the mechanisms are guided by a guide roller in rolling fit with the release films; and the actions of the mechanical dedusting mechanism, the cleaning mechanism, the drying mechanism and the winding mechanism are uniformly and coordinately controlled by an electric control system. According to the multi-stage treatment and recovery system for the PET release films, the release films are subjected to dust removal, cleaning, drying and winding in sequence, so that surface impurities of the used release films can be effectively removed, wound and recycled, the purpose of recycling the release films is achieved, the utilization rate of the release films is improved, and the production cost is reduced. The invention also provides a multi-stage treatment and recovery method for the PET release films.

The invention belongs to the technical field of supercapacitor electrode materials, and discloses a nickel sulfide nanosheet / carbon quantum dot composite material and a preparation method and application thereof. The composite material is prepared by the following steps: ultrasonically dispersing carbon quantum dots in an aqueous solution; adding soluble nickel salt and hexamethylenetetramine to obtain a carbon quantum dot / nickel hydroxide mixture precursor solution, enabling the precursor solution to grow on the surface of the foamed nickel at the temperature of 90-120 DEG C, mixing the carbon quantum dot / nickel hydroxide mixture with the sodium sulfide solution, performing hydrothermal reaction at the temperature of 100-140 DEG C, washing with water, and drying to obtain the composite material. The preparation method has the characteristics of simple preparation process, stable process, easiness in operation, low cost, no pollution and the like. The nickel sulfide nanosheet / carbon quantum dot composite material has a unique honeycomb nanosheet structure, which is beneficial to effective infiltration of an electrolyte, can enable the electrolyte to be in full contact with active substances, improves the electrochemical performance of the material, and can be used as a supercapacitor electrode material.

The invention relates to the field of lithium ion batteries and concretely relates to a lithium ion battery additive, a lithium ion battery containing the lithium ion battery additive and a preparation method of the lithium ion battery. The lithium ion battery additive comprises at least one polyvinylpyrrolidone compound selected from compounds shown in the formula I. In an electrolyte, the lithium ion battery additive can effectively infiltrate an electrode material so that a battery reversible capacity is improved. Nitrogen in the polyvinylpyrrolidone compound can effectively capture transition metal ions dissolved out of a positive pole and an acid produced by electrolyte decomposition and prevent SEI membrane destroy.

The invention relates to a compatilizer for a cellulose material reinforced composite material and a preparation method for the compatilizer, and belongs to the technical field of high polymer material modification. A reaction interface compatilizer is prepared by cografting acrylate monomers, styrene, an initiator, polyolefin, a bonding agent and the like on the polyolefin through a solid-phase grafting method. The compatilizer has the advantages that the grafting ratio of functional monomers on a polymer substrate main chain is high, the functional monomers can form covalent bonds with hydroxyl on the surface of a cellulose material efficiently, and the dispersibility of the cellulose material in a plastic substrate is promoted; meanwhile, the macromolecular main chain has proper molecular weight, can be subjected to chain entanglement with the plastic substrate in the composite material to improve the compatibility, has high melting fluidity, can effectively infiltrate the composite material during processing, is closely meshed at the interface to form an interface layer for effectively transmitting stress and effectively relieves fine cracks generated due to deformation of the material, the mechanical properties and water resistance of the composite material are improved, and the application range of the composite material in various fields is widened.

The invention discloses a high-intensity water-resistance corrugated board and a preparation method of the high-intensity water-resistance corrugated board according to the national standard GB / T22873-2008. The high-intensity water-resistance corrugated board comprises surface paper and inner paper, wherein a corrugated paper layer is arranged between the surface paper and the inner paper; a high-intensity water-resistance adhesive is coated between the peak surface of the corrugated paper layer and the surface paper as well as the inner paper; a special water-resistance additive is added into the conventional corrugated board adhesive; and various technological parameters of a board automatic line are optimized by an ultrafine particle pulping technology, so that the water resistance of the corrugated board is greatly improved and is much higher than the advanced level of products of the same type in foreign countries.

The invention discloses oil-filled and carbon nano tube filled emulsion coprecipitated rubber and a preparation method thereof. The oil-filled and carbon nano tube filled emulsion coprecipitated rubber comprises the following main ingredients in parts by weight: 100 parts of rubber, 1-40 parts of oil, 1-40 parts of carbon nano tube and 0.1-5 parts of anti-aging agent. The preparation method of the oil-filled and carbon nano tube filled emulsion coprecipitated rubber comprises the following steps: adding modified carbon nano tube suspension and the anti-aging agent into rubber latex, and stirring for 10-30 minutes at the temperature of 30-60 DEG C; adding emulsified oil into the mixture, and stirring for 1-10 minutes; adding a flocculating agent for flocculating, and dehydrating and drying, so that the oil filled and carbon nano tube filled emulsion coprecipitated rubber is prepared. The preparation method of the oil-filled and carbon nano tube filled emulsion coprecipitated rubber can overcome the defects of the traditional mechanical blending construction method that filler is not uniformly dispersed and energy consumption is high, a technology is simple, cost is low, and popularization is easy; requirements of different users can be met by regulating ratio of filling oil and filling carbon nano tubes; the emulsion coprecipitated rubber prepared by adopting the preparation method has excellent performance, and mechanical property, wear resistance and antistatic property of the emulsion coprecipitated rubber are greatly improved.

The invention discloses a reparation method of oil-extended oxygenated graphene solution co-coagulation rubber. The oil-extended oxygenated graphene solution co-coagulation rubber mainly comprises, by weight, 100 parts of rubber, 1-80 parts of oil, 1-80 parts of graphene oxide, 0.1-5 parts of an antioxidant and 0.1-5 parts of a coupling agent. The preparation method comprises the following steps: adding graphene oxide, oil, the coupling agent and the antioxidant into a rubber solution, and stirring at a maintained temperature of 30-60DEG C for 1-30h; blending water steam in the above obtained mixture, and evaporating out and recovering solvent oil by using a distillation and separation device; and drying to prepare the oil-extended oxygenated graphene solution co-coagulation rubber. The method overcomes the disadvantages of non-uniform dispersion of a nano-filler, high energy consumption and poor physical performances of traditional mechanical blending methods, and has the advantages of simple preparation process, low cost and easy popularization. In a nanometer composite material prepared in the invention, graphene oxycarbide is uniformly dispersed in the rubber substrate, and has effective reinforcing and antistatic effects. The solution co-coagulation rubber prepared through the method has excellent performances, and has greatly improved mechanical performances, wear resistance and antistatic property.

The invention discloses a water seepage device and method. The water seepage device and method comprise a water seepage device, and the water seepage device is arranged in a ground structure. The lower end of the water seepage device is in a conical shape and extends into a soil base, the part, extending into the soil base, of the water seepage device is provided with water seepage holes, the water seepage device penetrates through a waterproof concrete layer, and a channel is formed between the soil base and ground surface gathered water. The water seepage device comprises a water seepage pipe, a water seepage material and the water seepage holes, and the water seepage device can be replaced by a straw rope, a small wood pile and other water seepage materials. The water seepage device andmethod is simple in structure, easy and convenient to construct, low in cost and capable of effectively seeping into urban ground rainwater, and has certain reference significance in relieving urbanwaterlogging and building a sponge city.

The invention belongs to the technical field of composite material forming, and relates to a preparation method of a thermosetting-resin-based composite material of carbon fiber broadening cloths. A thin film composite technology is adopted, the fiber state is retained, a glue film and prepreg are prepared by adopting a ventilating and glue-permeation-free semipermeable film as a carrier, uniformity of the glue film is controlled through a screen net coating process, and a combined demolding structure of a ventilating and glue-permeation demolding cloth and ventilating felt is adopted to effectively discharge an excessive glue solution in a blank and solvent gas; the preparation method of the thermosetting-resin-based composite material of the carbon fiber broadening cloths comprises the steps: prepreg preparation, overlaying and hot-pressing forming are conducted, and the glue solution is smeared and applied to the surface of the ventilating and glue-permeation-free semipermeable filmof the matched screen net to prepare the glue film; and the carbon fiber broadening cloths are flatly laid on the surface of the glue film in a covering mode, and hot-pressing forming is conducted through a conventional process. The carbon fiber broadening cloth laminated composite material prepared through the method is even in resin distribution, good in fiber state retainability, high in strength conversion rate and easy to operate and control; and the preparation method is suitable for preparation of the thermosetting-resin-based composite material and particularly suitable for massive product processing and mechanical continuous preparation of the prepreg.

The invention relates to a dust removing device, in particular to a mine compressed air self-negative-pressure orifice dust removing device, which can remove the produced dust during coal seam gas drainage drilling and gas emission drilling. The dust removing device comprises a dust collection cavity, a dust absorption cavity, a dust fall pipeline and a dust removing component, wherein the dust absorption cavity is arranged below the dust collection cavity; the dust fall pipeline is arranged below the dust absorption cavity; the dust removing component is connected to the tail end of the dust fall pipeline; the dust fall pipeline is connected with a high-pressure air pipe; the tail end of the high-pressure air pipe is connected with a mine compressed air system; mine compressed air enters the dust fall pipeline with static pressure water through the high-pressure air pipe; since the air velocity of the compressed air is high, the static pressure water is fully atomized; but when the compressed air is blown to the dust removing component through the dust fall pipeline, negative pressure is formed in the upper space of the dust fall pipeline and in the dust absorption cavity, so that all the dust collected in the dust collection cavity is fully absorbed into the dust removing component; and the dust removing device has the advantages of simple structure, convenience in mounting and use, good dust removing effect and no potential safety hazard.

The invention provides a cement raw material additive and the preparation method thereof; a grinding-aiding reinforcing agent is firstly added, the grinding-aiding reinforcing agent can accelerate grinding refinement after raw materials are ground, and the grinding-aiding reinforcing agent can stimulate the strength of the sintered raw materials, so that the effects of saving energy, increasing the yield and enhancing are achieved. The addition of a raw material decomposition accelerator can change the chemical reaction way in the raw material firing process, so that the raw material can react at the temperature lower than the normal firing temperature to generate clinker, and the reaction activation energy is reduced to promote the rapid decomposition of the raw materials. An added desulfurization activator can react with generated sulfur dioxide in the firing process to generate sulfur trioxide, so that the purposes of sulfur fixation and desulfurization are achieved. By adding a dispersing agent component, infiltration between each component and the raw materials can be effectively promoted, and the contact area of the components and the raw material can be increased, so that the respective effects can be more effectively exerted. The additive has good energy-saving, coal-saving, yield-increasing and enhancing effects, the effect is lasting and high-temperature-resistant, the liquid is more convenient to use, and the additive has a desulfurization effect and is more environment-friendly.

The invention discloses a spherical aluminum nitride-expanded graphite reinforced high-thermal-conductivity PP / PA6 composite material, which is prepared from the following raw materials by weight: 30-70 parts of a PA6 resin, 10-30 parts of a PP resin, 10-20 parts of expanded graphite, 5-15 parts of spherical aluminum nitride, 5-12 parts of a compatibilizer, and 0.2-0.8 part of an antioxidant. Theinvention further discloses a preparation method of the PP / PA6 composite material. According to the present invention, the composite material has the high-temperature resistance of PA6 and the excellent processing performance of PP, can replace aluminum materials in the field of LED illumination, can further be used in other industrial fields with high requirements on mechanical properties and thermal conductivity, and has advantages of low density, good mechanical property, high thermal conductivity, low cost and wide application range.

The invention provides a conductive gel tablet for a defibrillator. Conductive particles are dispersed in aqueous solution of crylic acid according to a scale for preparing the water-absorbing conductive gel tablet, and the conductive gel tablet used for the defibrillator is prepared after aggregating polyaniline. An interactive network structure is formed due to interconnection between the conductive particle in a PAA network and a polyaniline chain, so that a conductive channel is formed, and the conductivity of the prepared conductive gel tablet is 9.3*10<-3>S.cm<-1>.

The invention belongs to the technical field of supercapacitor electrode materials, and discloses a nickel-cobalt hydroxide / molybdenum trioxide core-shell nanorod array material and a preparation method and application thereof. The core-shell nano material is prepared by the following steps: dissolving ammonium molybdate into deionized water; adding acid-treated carbon cloth, performing reacting in a hydrothermal reaction kettle to prepare a carbon cloth loaded molybdenum trioxide nanorod array precursor, inserting the precursor material as a working electrode into mixed solution containing soluble nickel-cobalt salt, selecting a potential step mode reaction by using an electrochemical workstation, and performing water washing and drying to obtain the material. The preparation method has the characteristics of simple preparation process, stable process, operation easiness, low cost, no pollution and the like. The nickel-cobalt hydroxide / molybdenum trioxide core-shell nanorod array material has a unique one-dimensional array structure, thereby facilitating the effective infiltration of an electrolyte. Meanwhile, the electrolyte can be in full contact with an active substance, so that the electrochemical performance of the material is improved, and the material can be used as a supercapacitor electrode material.

The invention belongs to the technical field of riverway treatment, and discloses a warning board device for riverway dredging, which comprises a base, reinforcing mechanisms are arranged at four corners of the base, two groups of height adjusting mechanisms are arranged on the outer wall of the top of the base, and adjusting blocks are fixed on the outer walls of the tops of the height adjustingmechanisms through bolts. The adjusting block is rotationally connected with a fixing frame through an adjusting shaft, a warning plate is clamped to the inner wall of the fixing frame, a cleaning mechanism is arranged on the outer wall of the fixing frame, the cleaning mechanism comprises two cleaning rollers and a rolling gear, cleaning brushes making contact with the warning plate are arrangedon the outer side walls of the cleaning rollers, and the cleaning rollers are fixedly connected with the rolling gear through cleaning shafts; the outer walls of the tops of the two cleaning shafts are jointly and rotationally connected with the same support, the inner wall of the support is rotationally connected with a driving device, the cleaning mechanism of the device can effectively and automatically clean floating dust and sludge blocks on the warning board, and the labor intensity of workers is reduced.

An embodiment of the invention provides a mask containing a fructus rosae extract and a preparation method. Components of the mask only include fructus rosae fermentation filtrate, panthenol and a moisturizing agent. The fructus rosae fermentation filtrate is capable of activating skin absorption channels, promoting absorption of functional components and accelerating skin repair to achieve a facial skin whitening effect; panthenol compounded with the fructus rosae fermentation filtrate is capable of effectively permeating and infiltrating skin surface corneum to achieve an efficient moisturizing effect, skin roughness can be effectively improved to make the skin tender, epithelial cell growth is simulated, skin wound healing time is shortened, tissue wound repairing is realized, the moisturizing agent is great in film forming property and skin friendliness, and problems of quality instability, low safety and high quantity of additives of mask products in the prior art are solved. Dueto adoption of a sterile filling technique in the preparation method of the mask, preservatives harmful to the skin can be substituted, and skin damage risks are reduced.

A step-type green land with a rainwater in-place elimination function comprises at least one step green land module. Each step green land module comprises a planting layer, a dispersing layer, an adsorption layer, a diversion layer, a retaining wall and a water collecting pipe. Rainwater infiltration, purification, collection, storage and utilization facilities are provided, runoff can be effectively intercepted and slowed down, and rainwater is eliminated, purified and recovered on the spot. The soil structure has certain permeability to speed up rainwater infiltration; grass planting grids are laid on the slope surface so that the surface layer water and soil loss can be reduced; the adsorption layers can effectively adsorb and purify the infiltrated rainwater; the planting layers and the dispersing layers are arranged on the upper portions of the retaining walls so that the moisture can be quickly dispersed; the surfaces of the retaining walls are subjected to infiltration prevention treatment, and thus the situation that the rainwater erodes and damages wall bodies is avoided; and the step green land can be perfectly integrated with surrounding green land environments through the design of the invisible retaining walls, and thus the natural landscape effect of the green land is improved.

The invention relates to a frost-damage-prevention permeable blind ditch and a construction method thereof. The permeable blind ditch is arranged below a frozen earth depth (9) and has a longitudinalslope gradient of 1%-2%, and comprises a gravel permeable layer (6), a medium-coarse sand filter layer (4), a supporting layer (2) and a mesh hole drainage pipe; besides, two layers of permeable geotechnical cloths are used for realizing a cylindrical structure with the central gravel permeable layer and the outer layer medium-coarse sand filter layer for wrapping the permeable layer; foundation water can permeates below a frozen earth line effectively and smoothly; underground filtration in a whole foundation zone is reduced, so that frost damage is effectively avoided; the foundation filtration water can be automatically drained along the ditch; soil particles around the permeable blind ditch can be effectively prevented from entering the blind ditch; and the blind ditch is prevented from being blocked, so that the blind ditch can be used for ever. Furthermore, the construction method is simple in procedures and can be finished in a short time, so that time is saved, and constructioncost is reduced; and the construction method can also be applied to filled foundation engineering foundation water drainage constructions, and is worth wide promotion.

The invention relates to the technical field of building structural adhesives, and discloses a novel carbon fiber reinforcement matching primer which comprises a component A and a component B in a mass ratio of 2: 0.8-1.2; the component A comprises the following components in parts by weight: 50.0 to 90.0 parts of E-51 epoxy resin; 2.0 to 15.0 parts of a toughening agent; 10.0 to 50.0 parts of a diluent; 0.5 to 4.0 parts of a coupling agent A and 0.1 to 1.5 parts of a surfactant; the component B comprises the following components in parts by weight: 80.0 to 100.0 parts of a modified amine curing agent; 0.5 to 3.0 parts of an adhesion promoter; 1.0 to 3.0 parts of a coupling agent B; 2.0 to 3.0 parts of a flame retardant and 0.5 to 1.0 part of an antioxidant. The primer can improve the bonding strength between concrete and a leveling material or an impregnated resin interface at a wet interface or a non-dry base layer interface, and seal fine holes of a concrete base layer, so that carbon fiber sheets coated with an impregnated adhesive can be effectively adhered and compacted with the concrete base layer to form a composite whole and achieve the effect of resisting external forces.

The invention relates to a pharmaceutical composition for treating tumors or cancers and application thereof, in particular to a pharmaceutical composition which comprises vesicular stomatitis virusesdelivered through direct injection or systemic administration or intratumoral delivery and is combined with PDL1 antibody intravenous administration to generate a synergistic effect in treatment of metastatic lung cancer. Besides, the oncolytic virus after gene mutation and the PDL1 antibody have the characteristic of recognizing tumor cells, normal cells are not damaged, and the oncolytic virusand the PDL1 antibody are sequentially combined for use to generate a synergistic effect in curative effect.