643results about How to "Meet the protection requirements" patented technology

The invention discloses a flue-gas cleaning method for waste incineration, which comprises a dry process and a wet process. In the dry process, harmful substance in the flue gas is adsorbed by utilizing an adsorbent, and acid gas is neutralized by utilizing an alkaline absorbent, and in the wet process, a wet spray scrubber is utilized to purify the flu gas with higher efficiency. In addition, the invention also discloses a flue-gas cleaning system for waste incineration, which comprises a cooling tower, a bag-type dust collector, a wet washing tower and a glue-gas reheater. Flue gas from an exhaust-heat boiler enters the bag-type dust collector after being cooled by the cooling tower. Activated carbon and slaked lime powder are sprayed into the flue gas before the flue gas enters the bag-type dust collector to carry out preliminary purification on the flue gas; the purified flue gas is introduced to the wet washing tower through a draught fan for further processing; and the purified flue gas is discharged into the atomosphere by a chimney after the two-stage heating. The invention can effectively remove pollutant in flue gas and the quality of the purified flue gas can achieve the EU 2000 effluent standard.

The invention discloses a hardening agent for a road. The hardening agent is prepared from, by weight, 10-15% of cement, 1-5% of lime, 2-3% of fly ash, 2-3% of gypsum, 1-2% of coal gangue, 1-2% of zeolite, 3-15% of sulfonated oil, 1-2% of phosphate, 1-2% of caustic alkali, 1-2% of potassium permanganate, 2-4% of sodium chloride, 2-4% of sodium carbonate, 2-3% of calcium carbonate, 2-3% of silicon powder, 1-2% of asphalt, 5-10% of sodium silicate, 1-2% of polyacrylamide, 1-2% of polyacrylic acid, 1-2% of magnesium sulfate, 1-2% of calcium carbonate, 7-10% of tar, 0.1-1% of epoxy resin, 0.6-1% of aniline furfural, 0.3-1% of calcium acrylate and 0.5-2% of carboxymethyl cellulose. The invention discloses a roadbed hardening method. The hardening agent for the road is adopted for hardening.

The invention discloses a railway vehicle head structure. The railway vehicle head structure comprises a vehicle body main structure, a vehicle head anti-collision structure and an anti-creeper. A vehicle head is divided into a safety zone of which the longitudinal load strength is decreased progressively in a gradient mode, a secondary deformation zone and a main deformation zone according to the longitudinal direction of a railway vehicle. The safety zone is the vehicle body main structure and comprises a passenger room zone and a driver seat zone. The secondary deformation zone is a zone from a cab front door to an anti-creeper installation plate and comprises the vehicle head anti-collision structure and an anti-creeper installation structure. The main deformation zone comprises a cab floor located in front of the anti-creeper installation plate and the anti-creeper. A first-stage stopping structure is arranged between the secondary deformation zone and the main deformation zone. A second-stage stopping structure is arranged between the safety zone and the secondary deformation zone. According to the railway vehicle head structure, a vehicle body deforms and absorbs energy in a controllable and orderly mode, and the good safety performance is obtained.

The invention discloses a manufacturing method of a flexible heat-sensitive thin film resistor array, which belongs to the field of micro-electromechanical systems (MEMS). The method comprises the following steps: firstly depositing a sacrificial layer on a silicon chip; spin-coating a PI prepolymer on the sacrificial layer, and forming a PI thin film by thermocuring; then spin-coating photoresist, carrying out lithographic patterning, and sputtering a required metal heat-sensitive thin film layer; adopting the stripping method to obtain a pattern of the heat-sensitive thin film layer; then spin-coating the photoresist, carrying out the lithographic patterning, and then electroplating for forming an electrical connection metal layer; removing the photoresist, and then carrying out heat treatment on heat-sensitive resistors; and finally depositing a parylene protective layer, removing the sacrificial layer and then obtaining the flexible thin film resistor array. The flexible heat-sensitive thin film resistor array has simple process, more reliable connectivity of the heat-sensitive resistors, and small interference of conductor resistance, and can greatly improve the measurement precision when being used as a sensing element of a sensor, and be applied in moist, underwater and other environments under the condition of ensuring the sensitivity of the sensor.

The invention discloses a refrigerant composition with a low GWP value. The composition consists of 2,3,3,3-tetrafluoropropene(HFO-1234yf), 1,1-difluoroethane (HFC-152a) and dimethyl ether (DME). The preparation method comprises the step of physically mixing the above components at normal temperature in corresponding proportion. The refrigerant composition has zero Ozone-Depletion Potential (ODP), and very low global warming potential (GWP), meets the requirement of environmental protection, has physical property equivalent to HFC-134a, and can be directly used in the traditional HFC-134a system without redesigning a compressor.

The invention relates to a resin-formed flexible puncture-proof fabric and a preparation method of the resin-formed flexible puncture-proof fabric. The fabric consists of garment fabric and thermosetting resin condensates, wherein a gap exists between the thermosetting resin condensates. The preparation method comprises the following steps of: uniformly dispersing the thermosetting resin in each mesh of a screen plate so that each mesh is filled with resin; scraping residual resin on the surface of the screen plate; spreading the garment fabric on the screen plate filled with resin; applying pressure to the garment fabric, and drying; solidifying the thermosetting resin condensate on the surface of the garment fabric; and finally removing the thermosetting resin condensate from the screen plate to obtain the resin-formed flexible puncture-proof fabric. According to the invention, the thermosetting resin is a good binder before solidification, has a good binding effect with the garment fabric and relatively high strength and hardness after solidification, and can resist the puncture of a conventional tool needle tube; and the shortcomings and defects of the prior art are overcome, and the needs of the military field and civil field are met.

The invention discloses a rust-proof soft film composition and a preparation method thereof, belonging to the technical field of metal protection and particularly relating to a metal rust preventing technology. The rust-proof soft film composition disclosed by the invention comprises the following components in a formula in percentage by mass: 40-70 of film forming agent, 2-10 of corrosion and rust inhibitor, 1-5 of vapor phase inhibitor, 4-10 of microcapsule antirust agent, 0-10 of pigment, 1-3 of rheological agent, 0.2-1.0 of defoaming agent and 10-25 of solvent. The rust-proof soft film composition disclosed by the invention has an excellent rust-proof effect and an excellent self-repairing function; rust-proof gas volatilized by the film can meet the rust-proof requirements of inner and outer surfaces of workpieces with complex structures such as inner metal cavities, inner walls of pipelines, grooves and the like; when the rust-proof soft film is destroyed in a use process, a rust-proof core with an excellent self-repairing function of the microcapsule antirust agent can be automatically repaired, so that the condition that the rust-proof film is invalid in advance because of being destroyed is avoided, and the protection time of a protective film is prolonged; and the rust-proof soft film composition can comprehensively meet the requirement for metal rust-proof protection under severe environments such as outdoor sun and rain, sand-dust and the like.

Provided are an ultraviolet-curing powder coating and processes for manufacture and painting, which relate to a manufacturing technique of the powder coating and an operation method. Unsaturated polyester resin, photoinitiators and flatting agents are put into an extrusion machine to be melted and mixed, after being frozen and broken, the unsaturated polyester resin, the photoinitiators and flatting agents are cribrated and classified, finally being packed, wherein the unsaturated polyester resin is provided with (methyl) acrylic acid of double bonds. The ultraviolet-curing powder coating manufactured through the process resolves the problem of the products of the existing technique that the products are not high-temperature resistant and the powder-painting problem of thick substrates. The ultraviolet-curing powder coating increases the curing speed of the powder coating, the leveling property of paint film is good, and chemical resistance and other mechanical properties are also good. The ultraviolet-curing powder coating can be widely used in the painting of wood, plastic, paper, preassembled elements, truck evaporators and the like, in particular to thermosensitive base materials of medium density fiber board (MDF), plastic, paper, soldering elements, assembly parts of electronic components and the like.

The invention discloses a method suitable for controlling the concentration of hydrogen sulfide tail gas in a low-temperature methanol washing process. The method comprises the steps that a sulfur-bearing methanol rich solution dissolved with sulfide and carbon dioxide is subjected to flash evaporation via a medium-pressure flash evaporation tower; fuel gas such as CH4, CO and H2 dissolved in the solution is desorbed and recovered; the methanol solution after the flash evaporation is subjected to pressure reduction and gas stripping to allow a carbon dioxide component to be desorbed from the solution; sulfide is still dissolved in the methanol solution via secondary washing and absorption of the solution to achieve sulfide enrichment; the sulfur-bearing methanol rich solution is heated and then subjected to the flash evaporation; flash evaporation gas returns to a secondary absorption tower to strengthen the sulfide enrichment; the obtained sulfur-bearing methanol solution enters a heat regeneration tower to allow sulfide and residual CO2 to be fully desorbed by the action of steam stripping of methanol steam; and non-condensable gas, namely the acid sulfide tail gas is obtained by further condensation and cooling via a tail gas heat exchanger and a hydrogen sulfide tail gas chiller. The method has the advantages that the method is energy-saving and consumption-reducing, and can adapt to different sulfur recovery technology requirements.

The invention discloses an extra-high-voltage direct-current power transmission converter station protecting method which concretely comprises the following operation steps: a converter station control system collects signals of all circuit breakers in an alternating-current field 3 / 2 wire by a secondary system in a converter station and judges the final circuit breaker and the final line according to the on-off state of the circuit breaker; and when the final circuit breaker and final line state is generated, the valve block locked tripping function is started, and the whole direct-current system line is cut off. The power transmission converter station protecting method disclosed by the invention overcomes the defects of complex structure and more dependence on software performance in the prior art, optimizes the loop structure and ensures the safety of extra-high-voltage direct-current equipment.

The invention provides an intelligent motor vehicle exhaust emission diagnosis method and an apparatus thereof and relates to a wireless communication technology field. The apparatus mainly comprises vehicle terminal equipment formed by a vehicle on-board diagnosis (OBD) II automobile emission monitoring system and a vehicle wireless transceiver system. A monitoring center, a city traffic highway and a gateway are provided with monitoring stations. The vehicle terminal equipment carries out channel scanning, searches a monitoring station coordinator and emits an access network request. After the network is connected successfully, the vehicle terminal equipment sends a license plate number and information whether the exhaust emission exceeds a standard and the like to the monitoring station coordinator. The monitoring stations establish the network, receive the information of the vehicle terminal and transmit data to a vehicle monitoring database of a monitoring center computer so as to monitor and manage the vehicle exhaust emission. By using the method and the apparatus of the invention, detection, maintenance and management of the automobile exhaust emission can be integrated into one body so that a requirement of environment protection can be satisfied. And the method is reasonable and simple. An apparatus structure is simple. Usage is convenient and cost is low.

The invention relates to a solar air-conditioner comprising a U-shaped heat pipe collector, a lithium bromide absorption-type refrigerating machine, a heat storage water tank, a cold storage water tank, a circulation pump, a cooling tower, an air-cooled coil pipe, an auxiliary oil-fired boiler and an automatic control system. The lithium bromide absorption-type refrigerating machine comprises a high-pressure generator, a low-pressure generator, an evaporator, an absorber, a cooling tower, a cooled heat exchanger, a concentrator and a generator pump. Lithium bromide-water separators are respectively arranged in the high-pressure generator and the low-pressure generator. Surfactants are added in refrigerant solution. The solar air-conditioner does not need to consume lots of energy and has low requirement on heat energy, can utilize various low-grade heat energy besides the solar heat sources, and has good electricity saving and energy saving effects and high economic efficiency. The cold capacity regulating range is wide. Along with the change of external load, the unit can carry out stepless regulation on the cooling capacity within the range from 10% to 100%, and during low load regulation, the heat efficiency hardly falls and the properties are stable; therefore, the solar air-conditioner can better adapt to the requirement of variable load.

The invention discloses a blasting demolition construction key technology and construction method of an intersecting-parallels-shaped high-rise building, and aims at providing an economical and quick blasting demolition construction method of an intersecting-parallels-shaped high-rise building. The construction method is small in engineering amount, low in construction cost and good in blasting effect. The construction method comprises the following steps that a, division pretreatment is carried out on the building, wherein U-shaped and T-shaped cutting seams are arranged in the center direction by bypassing a core barrel, the building is divided into a part A and a part B, and the whole core barrel is cut and merged into the part B; b, blasting cutting openings are formed in the bottoms of the divided building, wherein the blasting cutting openings are formed in the part A, the part B and the core barrel based on the high-rising building blasting demolition principle respectively; c, frame structure predemolition is carried out on a few key positions of the divided building needing blasting demolition; d, holes are drilled and checked; e, charging and protection construction are carried out; and f, networking, alerting and detonation are carried out. The blasting demolition construction key technology and construction method is applied to the technical field of building blasting demolition.

The invention provides environment-friendly wheel and track lubricating grease. The environment-friendly wheel and track lubricating grease comprises, by weight, 70-95 parts of base oil, 1-20 parts of thickening agents, 1-8 parts of anti-wear agents, 0.05-3 parts of antioxidants, 0.02-1.5 parts of anti-corrosion and anti-rust agents and 1-10 parts of solid anti-wear materials. The base oil comprises ester oil and / or synthetic hydrocarbon. The environment-friendly wheel and track lubricating grease has the advantages that the white environment-friendly wheel and track lubricating grease is excellent in low-temperature performance, biodegradability, anti-corrosion property and extreme pressure anti-wear property and free of harmful elements such as heavy metal, is non-toxic (or is low in toxicity) and is easy to pump, spray and uniformly atomize; wear of flanges of wheels can be effectively reduced, the service lives of the wheels and steel tracks can be prolonged, environmental requirements can be met, and the environment-friendly wheel and track lubricating grease is applicable to lubricating the wheels and the tracks for track traffic in wide temperature ranges of -50-150 DEG C.

The invention relates to a bonding forming method of a flexible stab-preventing material and a stab-preventing body. Particle patterns are formed on base cloth in a bonding mode, the thickness of particles ranges from 0.3 mm to 2 mm, the distance between any two points ranges from 1 mm to 20 mm according to the horizontal plane size, and the separation distance between every two adjacent particle patterns ranges from 0.2 mm to 2 mm. The bonding forming method of the flexible stab-preventing material and the stab-preventing body comprises the steps that the particles are evenly scattered in mold holes of a mold, a piece of film with even holes is fixed, the particles in the mold are evenly coated with adhesives, the film is torn away, extra adhesives in gaps between the particles are removed, base cloth fabric is laid, heating solidification is carried out, the particles solidify on the base cloth, and the flexible stab-preventing material is obtained. The flexible stab-preventing material has high mechanical strength, and can resist piercing of common knives and common syringes; due to the fact that gaps exist between the particle patterns, it is ensured that the obtained flexible stab-preventing material has good flexibility performance and good air permeability, safety protection articles such as stab-preventing vests, stab-preventing jackets, stab-preventing arm guards, stab-preventing kneecaps and stab-preventing gloves can be made of the flexible stab-preventing material, and application is wide.

The invention relates to a processing method of sulfur containing waste alkali solution, which is in particular to a catalytic oxidation desulfurization method of the supported phthalocyanine cobalt. The sulfur containing waste alkali solution is processed by the method of the invention, which both avoids a second pollution caused by the direct discharging of the phthalocyanine cobalt into the water body, and improves the desulfurization effect of during the process of the sulfur containing waste alkali solution. The active carbon supported phthalocyanine cobalt has a higher catalytic oxidation activity, a simple process and a higher safety.

The invention relates to the formulation and the preparation method of a lead-free composite glass adhesive solar battery positive silver paste. A lead-free glass adhesive is designed. The positive silver paste made of the lead-free glass adhesive is an environment-friendly material. A crystalline silicon solar battery made of the positive silver paste has the advantages of high conversion efficiency and strong electrode adhesion. According to the lead-free glass adhesive, a silicon (Si)-tellurium (Te)-germanium (Ge) composite glass material is used; Bi2O3, Al2O3, ZnO, a transition metal oxide, an rare earth metal oxide, an alkaline earth metal oxide and the like are added; the composite glass adhesive can quickly dissolve and precipitate silver grains in a battery sintering process; a good conductive path is formed between a silver thick film electrode and an emitting area n-Si; Ag-Si ohmic contact is formed; the series resistance of the battery is reduced; the conversion efficiency of the battery is improved; and through the composite glass adhesive, firm adhesion of a silver electrode and a silicon substrate is generated, and a positive silver electrode has strong adhesion.

This invention disclsoes a vehicle multi-function concrete construction equipment, it is installed on car chassis. Pumping mechanism of pumping type spray machine, spray gun, and accelerating agent device and air compression set is set on the chassis. Its feature is that agitator is also fixed on chassis, and its material lifting mechanism, agitating mechanism, hydraulic power unit and electric control equipment. Generator connected to car engine is set, the hydraulic power unit and air compression set are connected to generator circuit. Folding guide rail is used on the material lifting mechanism. Agitate barrel is span fixed over pumping mechanism, and the barrel axial line is vertical to pumping mechanism push oil cylinder, the hopper of pumping spray machine is directly installed under the barrel discharge port. This invention can meet the needs of project salvage construction, especially for military engineering salvage. All kind of functions said above are on one car, dynamic need is met from chassis.

The invention relates to an easy-construction two-component packaging aqueous epoxy zinc-rich coating. The coating selects a low-molecular-weight epoxy resin, an active diluent, a high-efficiency antifoaming agent, a wetting dispersant, ultrafine zinc powder, a self-emulsifying aqueous epoxy hardener, a cosolvent and water as raw materials. The aqueous epoxy zinc-rich coating has the advantages of good corrosion resistance, realization of resisting salt spray for 1500h, no foaming, rust or shredding of the coat of the coating, according with requirements of HG / T3668-2009 Zinc Rich Primer, good application performance, convenient onsite use, realization of the thickness of the once-formed coat of above 80mum, 1h surface drying and 16h hard drying at 25DEG C, and satisfying of the steel structure anticorrosion construction requirement. The aqueous epoxy zinc-rich coating can be applied to the anticorrosion of steel structures comprising ships, bridges, sea engineering apparatuses and the like, and can also be applied to the steel plate pretreatment streamline as a workshop primer.

The present invention discloses the method of extracting active functional soybean factors, including soybean isoflavone, soybean spanin, soybean oligosaccharide and functional concentrated soybean protein, from defatted soybean residue. Specially, the process of the present invention includes extracting defatted soybean residue with edible alcohol solution to obtain extracted liquid, concentration and alcohol precipitation of the extracted liquid, and conventional refining process to obtain high purity soybean isoflavone, soybean spanin, soybean oligosaccharide and functional concentrated soybean protein. The present invention has product safety, simple technological process, raised product quality and low production cost, and is suitable for industrial production.

The invention relates to alkyl lubricating grease used for surface protection of a steel wire rope and a preparation method thereof. The alkyl lubricating grease comprises the following components by weight: 52.0-78.0% of base oil, 10.0-35.0% of microcrystalline wax, 8.0-30.0% of thickener, 0.25-0.6% of alkyl diphenylamine, 1.5-3.0% of petroleum barium sulfonate and 1.5%-3.0% of lanolin calcium soap. The sum of the weight percentages is 100%. The moving viscosity of the base oil under 100 DEG C is 10.0-40.0 mm2 / s, the thickener is ammonium polyphosphate (APP) or amorphous poly alpha olefin (APAO), and the dropping melting point of the microcrystalline wax is 65-85 DEG C. The APP or the APAO is utilized as the thickener, dropping point of the alkyl lubricating grease is improved, adhesion performance of the alkyl lubricating grease is improved, and antirust performance and anti-corrosion performance of the alkyl lubricating grease are excellent.

The invention provides a cleaner for the surface of an optical element, comprising pH regulator, surface active agent, solubilizer, corrosion inhibitor and purified water; wherein, the weight percentage of the pH regulator is 1 percent to 22 percent, the weight percentage of the surface active agent is 1 percent to 5 percent, the weight percentage of the solubilizer is 1 percent to 5 percent, the weight percentage of the corrosion inhibitor is 1 percent to 5 percent and the rest is purified water; the cleaner is applicable to the cleaning of the dirty on the surface of the optical element, has reasonable formulation design, low cost and safe and convenient use, and meets the requirements of environment protection; and the cleaned waste liquid is convenient to be treated and discharged.

The invention provides a cleaner for the surface of a metal material, comprising oxidizing agent, a pH regulator, surface active agent, solubilizer, defoaming agent and purified water; wherein, the weight percentage of the oxidizing agent is 0.5 percent to 5 percent, the weight percentage of the pH regulator is 3 percent to 12 percent, the weight percentage of the surface active agent is 5 percent to 15 percent, the weight percentage of the solubilizer is 1 percent to 10 percent, the weight percentage of the defoaming agent is 2 percent to 7 percent and the rest is purified water; the cleaner is an alkaline water-soluble cleaner, has good cleaning effect to pollutants remained on the surface of the metal material, has low corrosion without corrosion equipment, is not easy to damage the surface of the metal material, meets the requirements of environment protection and has reasonable formulation design, simple preparation technique and low cost; and the cleaned waste liquid is convenient to be treated and discharged.

The invention provides a preparation method of a thermal insulation coating high-performance polyurethane elastomer. After the reaction of terminal hydroxyl polybutadiene liquid rubber and polyisocyanate, polyurethane is added for reaction for 3 to 4.5 hours at 85 to 90 DEG C to produce isocyanate-terminated prepolymer; a certain amount of heat insulating filler is added in the prepolymer and is mixed evenly to produce component A; chain extender, antioxidant, curing agent and solvent are mixed evenly according to a certain portion to produce component B; the component A and the component B with the weight portion of 3: 1 to 6: 1 are mixed, stirred evenly, cured at room temperature to produce the thermal insulation coating high-performance polyurethane elastomer. The process of the invention used to synthesize the thermal insulation coating high-performance polyurethane elastomer is more reasonable, the product has higher quality and better comprehensive properties. The test date shows that the tensile strength is 3.50 to 5.80MPa, the elongation at break is more than 220 percent, the bond strength is more than 10.0MPa, the glass transition temperature is less than 60 DEG C below zero, the solidification shrinkage rate is less than 0.1 percent. The product is mainly applicable to aerospace industry.

The invention discloses a lifting device of a screenwiper arm. The lifting device comprises a signal acquisition device, a controller and an electric drive mechanism and an actuating mechanism arranged on the screenwiper arm, wherein the signal acquisition device is used for acquiring a state signal of a screenwiper and outputting the state signal into the controller; and the controller is used for judging the state of the screenwiper and controlling the electric drive mechanism to drive the actuating mechanism to lift or descend the screenwiper arm. A controlling method comprises: through acquisition of the state signal of the screenwiper, the lifting and descending of the screenwiper arm by the actuating mechanism are controlled. The lifting device has the advantages that the lifting device can use the structure of the prior screenwiper, directly mount the drive mechanism and the actuating mechanism on the screenwiper arm, is easy to modify and is flexible to control the lifting and descending of the screenwiper arm; and through the detection of the state of the screenwiper, the lifting device controls the lifting and descending of the screenwiper arm according to the state of the screenwiper, meets the protective requirements of different screenwipers, can lift the screenwiper arm when the screenwiper is stopped and solve the problem of aging due to the fact that a wiping rubber strip is contacted with windshield glass for a long time and is heated or frozen.

The invention relates to a waste heat recovery and utilization system for a coal mine air compressor. The system comprises a heat pipe heat exchanger arranged at the top of the air discharge duct of the air compressor; a heat exchange circulation pipeline is formed between the heat pipe heat exchanger and the casing of a shell-and-tube evaporator through a heat exchange circulating water outlet pipeline and a heat exchange circulating water return pipeline; a refrigerant circulation pipeline is formed between the evaporation heat exchange pipeline of the shell-and-tube evaporator and the casing of a shell-and-tube condenser through a compressor and an expansion valve; a domestic hot water primary circulation pipeline is formed between the condensation heat exchange pipeline of the shell-and-tube condenser and the hot water pipeline of a plate heat exchanger; a domestic hot water secondary circulation pipeline is formed between the cold water pipeline of the plate heat exchanger and a domestic hot water tank; a winter user heating circulation water supply pipeline is formed between user equipment and the condensation heat exchange pipeline of the shell-and-tube condenser; and a summer user refrigerating circulation water supply pipeline is formed between the user equipment and the casing of the shell-and-tube evaporator. By adopting the invention, winter heating, summer refrigerating, and domestic hot water providing all year round for coal mine buildings are realized.

The invention provides an identification method and device for the denial of service attack. The identification method for the denial of service attack comprises the following steps of obtaining the total amount of access requests sent to a target host within a first preset time period, and recording as a first request amount; judging whether the first request mount exceeds a threshold value which is obtained by calculating the page view of the target host; and if so, determining that the target host is subjected to the denial of service attack. According to the technical scheme disclosed by the invention, the total amount of the access requests sent to the target host within the preset time is used as a judgment target, the threshold value is obtained by the page view statistics of the target host to serve as a criteria to judge whether denial of service attack is received, the denial of service attack phenomenon is concluded to identify the denial of service attack so as to bring convenience to take corresponding measures, the identification accuracy of the denial of service attack is greatly improved, and the safety protection of the host is realized.

The invention provides a cleaner for the surface of an electronic instrument panel, comprising solubilizer, surface active agent, pH value regulator, antifoaming agent and deionized water; the weight percentage of all the components is as follows: 3 percent to 10 percent of the solubilizer, 3 percent to 12 percent of the surface active agent, 2 percent to 8 percent of the pH value regulator, 2 percent to 8 percent of the antifoaming agent and the rest is the deionized water; the cleaner is water soluble liquid and the pH value thereof is 11 to 12; the cleaner is applicable to the cleaning technique of the surface of the electronic instrument panel, can effectively remove the pollutants including rosin, soldering tin, oil stain, finger prints and solid particles and the like stained on the surface of the electronic instrument panel, has good permeability and thorough cleaning, is not easy to generate residue, has little corrosion, safe and reliable use and no damage to the ozone layer, meets the requirements of environment protection and has reasonable formulation design, simple preparation technique and low cost.

The invention relates to metal heat-treatment quantizing quenching device, based on water-base quench medium, which combines cooling request to run precise control. Wherein, connecting the liquid tank to quench bath by cooling inlet pipe, pump and valve; connecting the adaptation tank with heater to quench bath with material basket and over-flow slot and hole by pump and quench inlet pipe. This invention can decrease effectively cost and oil pollution, eliminates security hidden-trouble, and decreases the dependency degree to petroleum oil and derived products.

The present invention features that yellow corn powder as corn processing leftover is used as main material, into which ethanol is added to produce alcohol soluble protein for producing gum. Alcoholsoluble corn protein as gum is produced through adding 70-90 % concentration ethanol solution into yellow corn powder and immediate microwave treatment, and is modified with chitosan and crosslinkingagent to form chitosan-alcohol soluble protein gum. The gum is mixed with sweetener, edible essence and color to produce biodegradable chewing gum with bacteriostasis function. The present invention opens one new way for producing environment-protecting chewing gum.