Recombinant HVT (herpesvirus of turkey) expressing IBDV (infectious bursal disease virus) VP2 and bursin chimeric protein

The invention relates to a recombinant HVT (herpesvirus of turkey) expressing IBDV (infectious bursal disease virus) VP2 and bursin chimeric protein, and belongs to the research field of genetic engineering and biological products. 10 copies of BS 10 (bursin 10) chimeric IBDV VP2 gene expression cassettes are combined with HVT, so that a brand-new recombinant HVT (rHVT-BS10-VP2) is obtained. The virus simultaneously is recombining bivalent vaccine of an MD (Marek's disease) and an infectious bursal disease. The recombining bivalent vaccine not only can have an immune protection effect on the MD of chicken, but also can induce anti-IBDV lasting protective immunity of a commercialized chicken crowd with a high IBDV maternal antibody level. Compared with conventional IBDV and HVT vector live vaccine (vHVT-013-69 strains), the protection rate (100%) of an rHVT-BS10-VP2 immunity class is higher than the protection rate (93.3%) of an rHVT-VP2 immunity class.

Broaching method of large mortise of wheel disc of large-size flue gas turbine

The invention relates to a broaching method of a large mortise of a wheel disc of a large-size flue gas turbine, relating to the field of machining of the mortise of the wheel disc of the large-size flue gas turbine. The broaching method of the large mortise of the wheel disc of the large-size flue gas turbine is a segmented forming method. The wheel disc of the large-size flue gas turbine, which is generated by the broaching method of the large mortise of the wheel disc of the large-size flue gas turbine, has maximum overall dimension of luminousflux 1370*218 mm; the weight of a finished product is 1458 kg; and the weight of blanks is 2082.54 kg after rough turning before sample piece cutting.

Ceramic bonding agent cubic boron nitride grinding wheel applied for camshaft grinding processing

The invention discloses a cubic boron nitride abrasion wheel of vitrified bond used for the grinding processing of a cam shaft, composed of a base body, a bond course, an abrasion wheel block. The abrasion wheel block is a cubic boron nitride abrasion wheel block, raw material percentage contents and the weight percentage contents of the cubic boron nitride abrasion wheel block are that cubic boron nitride abrasion abrading agents are of 45-75%, corundum is of 5-20% and vitrified bond is of 20-35%, the raw materials percentage contents and the weight percentage contents of the vitrified bond are that SiO2 is of 50-60%, B2O3 is of 20-30%, A12O2 is of 2-5%, Na2O is of 4-15% and K2O is of 4-10%. The invention provides a high efficient grinding tool which has high degree of hardness, high processing accuracy and long service life, produces no environmental pollution and matches with a digital control grinding machine. Further, the invention has the features of good self-sharpening ability, ...

Tool for assembling and disassembling electrified display device on high-voltage device without power cut

The invention discloses a tool for assembling and disassembling an electrified display device on a high-voltage device without power cut. The tool comprises an insulating operation unit and an assembly and disassembly unit. The insulating operation unit comprises insulating rods and insulating gloves in the corresponding voltage grades of various substations. The assembly and disassembly unit comprises a fixing rod, a fixing ring, a supporting plate, a rotary cover, a storage battery, a direct-current motor and a wireless remote control receiving device, wherein the fixing rod and the rotary cover are fixedly connected to the upper portion of the supporting plate, the fixing rod is further connected with the fixing ring, a containing space is formed below the supporting plate, and the storage battery, the direct-current motor and the wireless remote control receiving device are fixedly connected in the containing space. The tool is characterized in that a tightening plug pin is arranged ...

Low-density and high-strength borosilicate microcrystalline foam glass

The invention discloses low-density and high-strength borosilicate microcrystalline foam glass, which comprises the following basic ingredients by mass percent: 55 to 65 percent of SiO2, 15 to 17 percent of Na2CO3, 15 to 17 percent of K2CO3, 3 to 5 percent of Al2O3, and 8 to 17 percent of H3BO3; in addition, 1 to 4 percent of a nucleation agent and 0.5 to 1 percent of a foaming agent are added to the basic ingredient for mixing; the foaming agent is carbon black; the nucleation agent adopts an arbitrary one of titanium dioxide, calcium fluoride or vanadium dioxide. The mixture is subjected to wet grinding for 3 hours; pulp is subjected to dry grinding for 3 hours after the pulp is dried; then the pulp is sieved through a 150-mesh standard sieve; finally, pulp is put into a furnace for burning at 775 DEG. The borosilicate microcrystalline foam glass has the characteristics of low density and high strength, and is simple in technology, low in cost and suitable for industrial production.

Glyphosate energy-saving production process

The invention discloses an energy-saving glyphosate production process, which belongs to the technical field of glyphosate production, and comprises the following steps: carrying out depolymerization, addition and condensation reaction on paraformaldehyde, triethylamine, methanol, glycine and dimethyl phosphite to obtain a condensation solution, transferring the condensation solution into a hydrolysis kettle, adding a 20% hydrochloric acid solution into the hydrolysis kettle, stirring and heating to 105-115 DEG C, carrying out constant temperature reaction for 2 hours, and cooling to room temperature to obtain the glyphosate. Hydrolysis tail gas and glyphosate mother liquor are obtained; the hydrolysis tail gas is sequentially subjected to alkali washing, dehydration and rectification treatment to obtain by-products chloromethane, methylal and methanol, the alkali washing, dehydration and rectification processes are set, high-boiling-point impurities are gradually removed, stepped cooling ...

Composite catalyst as well as preparation method and application thereof in hydrogenation reduction reaction

The invention provides a composite catalyst as well as a preparation method and application thereof in hydrogenation reduction reaction, and relates to the technical field of fine organic chemical synthesis. The composite catalyst provided by the invention comprises a carrier and active components loaded on the carrier, the active components comprise platinum, palladium and iron, the mass fraction of platinum in the composite catalyst is 1-5%, the mass fraction of palladium in the composite catalyst is 1-10%, and the mass fraction of iron in the composite catalyst is 0.5-2%; the carrier comprises activated carbon. In the composite catalyst provided by the invention, Fe, Pd and Pt form a ternary composite system to exert a synergistic effect to enhance the toxicity resistance of the composite catalyst, the aggregation or loss of metals is effectively controlled, and the composite catalyst has excellent hydrogenation reduction catalytic activity and high catalytic stability and hydrogenation ...

Supplementary lighting device for binocular stereoscopic vision measurement

The utility model discloses a supplementary lighting device for binocular stereoscopic vision measurement. The lighting device comprises a control panel, a base, a light supplementing lighting assembly, a horizontal rotating mechanism and a vertical overturning mechanism. The horizontal rotating mechanism is fixed on the base; the vertical turnover mechanism is fixed on the horizontal rotating mechanism; wherein the light supplementing and lighting assembly is installed on the vertical turnover mechanism, the control panel is connected with the light supplementing and lighting assembly, the control panel adjusts the azimuth angle of the light supplementing and lighting assembly through the horizontal rotating mechanism, and the control panel adjusts the pitch angle of the light supplementing and lighting assembly through the vertical turnover mechanism. According to the utility model, the angle can be automatically adjusted, illumination is supplemented for the to-be-measured object, and ...

TD-LTE digital trunking communication system and paging method thereof

The invention provides a TD-LTE digital trunking communication system and a paging method thereof. In the method, a base station constructs a GPCCH, and sets a paging period of the GPCCH according to a call access delay requirement by group service; the base station sends a paging message to a group terminal on the GPCCH according to the paging period; the group terminal accesses the group service according to the received paging message; and when a corresponding group to the group service is closed, the base station sends a group closing notification message to the terminal group on the GPCCH according to the paging period. By construction of the new GPCCH and setting of the paging period of the GPCCH according to the call access delay requirement by the group service, the delay limitations of a conventional PCCH are overcome and the call access delay requirement by the group service is met.

Passive high-voltage electrification audible and visual alarm

The invention discloses a passive high-voltage electrification audible and visual alarm. The passive high-voltage electrification audible and visual alarm comprises a high-voltage sensing energy fetching module, a high-voltage electrification detection module, an energy storage module, a light sensing module, an MCU module and an alarm module. One end of the high-voltage sensing energy fetching module is connected with a high-voltage copper bar of a switch cabinet, the other end of the high-voltage sensing energy fetching module is connected with a leakage capacitor, the other end of the leakage capacitor is connected with the ground, the output end of the high-voltage sensing energy fetching module is connected with the energy storage module, one end of the high-voltage electrification detection module is connected with the high-voltage copper bar, the other end of the high-voltage electrification detection module is connected with the MCU module, the output end of the energy storage module ...

A support frame for pressing jar machine

The utility model provides a pair of a support frame for pressing jar machine, including the chassis, the chassis be " ten " font structure, is equipped with the universal wheel on the chassis four corners, and the chassis includes first support and second support, is equipped with third support and fourth support on the first support perpendicularly, is equipped with the gusset plate between third support and the fourth support, and second support both ends are equipped with the support frame, and the support frame sets up with second riding, and support frame one end links to each other with the second support, and the other end links to each other with the gusset plate, simple structure, and reasonable in design is convenient for remove, the convenient regulation, labour saving and time saving improves work efficiency, the fixing and place the increased security of the pipeline of being convenient for.

Preparation of cotton type memory leisure fabric

The invention discloses a preparation method of cotton memory leisure fabric. The preparation method comprises the following steps: (1) preparation of superfine PTT filament fibers; (2) air-jet texturing composite; (3) weaving; and (4) dyeing and post finishing. The prepared fabric has the advantages of soft and comfortable hand feel, good elastic recoverability and good wrinkle resistance, the fabric is more elegant, attractive and has unique charm after being treated with advanced dyeing technique, the water diffusibility of the fabric is high, 0.1ml of water is dripped on the fabric, the absorption height reaches more than 70mm, residual moisture is less than 30% and antistatic property cloth face charge density is less than 6UC/M2 after dripping the water for 40 minutes according to a dryness factor measuring method, and in the weaving procedure, a Nissan double-jet electronic free woof selecting high-speed double-jet weaving machine with an electronic muzzle is employed to weave so ...

Moisture-absorption perspiration and antibiotic fabric and production method thereof

A fabric with the functions of moisture absorption, perspiration and antibiosis comprises 30 to 40 percent of mesopore special shaped section polyester fibre and 60 to 70 percent of common polyester fibre. The mesopore special shaped section polyester fibre contains antimicrobial which is 1.5 to 3.0 percent of the weight of the mesopore special shaped section polyester fibre. A production method of the fabric comprises decrement of lye of loom stare, deoiling, coloration and a post handling process. The fabric produced by the invention has inhibitory rate to bacterium of 99 percent or more, and water diffusivity and pistil adaptation are as high as 70 mm or more. And residual moisture content is lower than 30 percent after dripping for 40 minutes. Because the polyester fibre is hollow special shaped fibre and is melted with environment-friendly antimicrobial, therefore, the fibre is endowed with functions of moisture absorption, perspiration and antibiosis at the same time and is weaved ...

An integrated circuit board for monitoring and interfering with suspected wireless signals

The utility model discloses an integrated circuit board used for monitoring and interfering suspicious wireless signals. Including a PCB substrate, the PCB substrate is provided with a main controller, an integrated broadband RF signal processor, a receiving antenna, a power amplifier, a baseband processor, a storage module and a communication module. Wherein the baseband processor is respectivelyconnected with the main controller, the storage module, the communication module and the integrated broadband RF signal processor, the receiving antenna is connected with the integrated broadband RFsignal processor, the input end of the power amplifier is connected with the integrated broadband RF signal processor, and the output end of the power amplifier is used for being connected with the transmitting antenna. According to the utility model, components with the functions of monitoring and interfering suspicious wireless signals can be reasonably integrated on the circuit board with a small ...

Treatment method of acetic anhydride dehydration waste liquid generated in 3, 3 ', 4, 4'-diphenyl ether dianhydride dehydration process

The invention relates to the technical field of resource recovery, and provides a treatment method of acetic anhydride dehydration waste liquid generated in a 3, 3 ', 4, 4'-diphenyl ether dianhydride dehydration process. According to the method disclosed by the invention, 9-oxo (hetero) fluorene dianhydride and 3, 3 ', 4, 4'-diphenyl ether dianhydride in the acetic anhydride dehydration waste liquid can be respectively converted into 9-oxo (hetero) fluorene tetracarboxylic acid and diphenyl ether tetracarboxylic acid through the first heat preservation reaction and the first cooling crystallization, so that the 9-oxo (hetero) fluorene dianhydride and the 3, 3 ', 4, 4'-diphenyl ether tetracarboxylic acid are recycled; meanwhile, 9-oxo (hetero) fluorene tetracarboxylic acid and diphenyl ether tetracarboxylic acid are easily converted into 9-oxo (hetero) fluorene dianhydride and 3, 3 ', 4, 4'-diphenyl ether dianhydride, can be used for producing 3, 3 ', 4, 4'-diphenyl ether dianhydride, and ...

Lactobacillus salivarius SIL1 and application thereof

The invention discloses porcine source lactobacillus salivarius SIL1 and application thereof and belongs to the technical field of microorganisms. The lactobacillus salivarius SIL1 has high tolerance to acid, cholate and temperature, can tolerate culture solution with pH3 and cholate content of 6 grams per liter and can grow in simulated gastrointestinal juice. After the lactobacillus salivarius SIL1 is treated at the temperature of 60 DEG C for 30 minutes, the growth of strains is not influenced. The lactobacillus salivarius SIL1 has 100 percent of bacteriostatic effect on in vitro coculture Escherichia coli and salmonella, can be colonized into animal intestinal canals, and has functions of adjusting the distribution of animal intestinal flora and promoting animal growth.

Ceramic bond diamond finishing wheel

The invention discloses a ceramic bond diamond finishing wheel consisting of a metal core, a binding layer and a ceramic bond diamond working layer. The ceramic bond diamond working layer comprises the following raw material components in percentage by weight: 25 to 40 percent of the ceramic bond, and 60 to 75 percent of diamond grinding material, wherein the ceramic bond comprises the following raw material components in percentage by weight: 45 to 60 percent of SiO2, 0 to 3 percent of Al2O3, 30 to 45 percent of B2O3, 2 to 5 percent of ZnO, 3 to 5 percent of P2O5, and 1 to 4 percent of Li2O. The ceramic bond diamond finishing wheel provided by the invention has the advantages of high hardness, high self-sharpening performance, adjustable thickness and hardness of the working layer, and greatly improved service life and finishing efficiency; and the ceramic bond diamond finishing wheel can be used for finishing grinding manufacture tools used in various grinding machines.

Method for preparing biphenyltetracarboxylic acid based on catalysis of palladium-carbon catalyst and activation method of palladium-carbon catalyst

The invention provides a method for preparing biphenyltetracarboxylic acid based on catalysis of a palladium-carbon catalyst and an activation method of the palladium-carbon catalyst, and belongs to the technical field of catalyst regeneration. Cheap mixed chlorinated phthalic acid monosodium salt is selected as a raw material, water is used as a solvent, an activator is added into a system before a palladium-carbon catalyst is added, poisoning and inactivation of the palladium-carbon catalyst are avoided, then a coupling reaction is performed under the action of a reducing agent, and 3, 3 ', 4, 4'-biphenyltetracarboxylic acid can be obtained through acidification and refining. Meanwhile, the used palladium-carbon catalyst is activated in the presence of the activating agent, so that the operation is simple, palladium does not need to be leached, the loss of palladium in the recovery process can be reduced, the resource utilization of the palladium-carbon catalyst is realized, and higher ...

Preparation method of borosilicate foam glass artificial floating island material

The invention discloses a preparation method of a borosilicate foam glass artificial floating island material, which comprises the following steps: (1) weighing raw materials: Al2O3, SiO2, H3BO3, Na2CO3, K2CO3, a foaming agent, a foaming accelerant and a foam stabilizer; (2) putting the raw materials into a ball milling pot, putting in deionized water and alumina balls, sealing the mouth part of the ball milling pot, performing ball milling to obtain slurry, and drying to obtain a dried material; (3) putting the dried material into a ball mill, putting in the alumina balls and performing dry milling to obtain powder, and sieving; and (4) putting the sieved powder into a sintering furnace, and sintering to obtain the borosilicate foam glass artificial floating island material. By adopting the method disclosed by the invention, the prepared borosilicate foam glass artificial floating island material has the advantages of simple process and relatively low cost, is superior to the prior art ...

Multiplex fluorescence PCR (Polymerase Chain Reaction) detection kit for typhoid/paratyphoid saimonella

Composite fire-retardant trough box and manufacturing method thereof

The invention discloses a composite fire-retardant trough box, and belongs to the technical field of cable bridge components. The composite fire-retardant trough box is composed of a cover plate and a concave trough body. The outer side of the concave trough body is connected with an inserted connection piece in a sleeved mode, and the concave trough body is covered by the cover plate through the inserted connection piece and connection rivets. The cover plate, the trough body and the inserted connection piece are respectively of a layered structure, and each layered structure comprises a core material, a piece of glass fiber cloth and an organic coating. The invention further discloses a manufacturing method of the trough box. According to the trough box, the cover plate, the concave trough body and the inserted connection piece respectively of the layered structure are adopted, organic materials and inorganic materials are effectively bonded together through specially-made interface agents ...

Multi-functional training clothes fabric for special police

The invention relates to a multifunctional combat uniform fabric for special police, and is characterized in that: the fabric consists of the following components (expressed as wt. %): aramid fiber of hollow modified cross section: 45-55 percent, polyester fiber of hollow modified cross section: 40-48 percent, metal conductive fiber: 3-8 percent. The high strength of the fabric produced by adopting the invention can reach the areal density of 5 kg/m2 of the target, the 1.1g splinter proof V50 value can be over 550 M/S, the ultraviolet protection factor (UPF) of ultraviolet protection effect is 120.877, the UUA transmissivity is 1.040 percent, the UUB transmissivity is 0.678 percent, the anti-bacterial rate is above 99 percent, the wicking height is more than 70 mm and the fabric electric charge density of antistatic properties is less than 6 UC/m2.

Press a jar machine connector

The utility model provides a press a jar machine connector, its characterized in that includes the connector main part, the connector main part includes filtering component, go into the rubber tube says and goes out the rubber tube way, and filtering component includes and be provided with the filter screen between 2 external members by 2 external members, go into the rubber tube and be provided with the filter in saying, go out the rubber tube and say including entrance point and exit end that the exit end that goes out the rubber tube way is a plurality of pipelines that are the L type to be the circumference setting, be provided with the stop valve on the exit end and feed through a gluey hose, the utility model discloses a going into the rubber tube way and communicateing with pressing a jar machine, filter pressing jar colloid of machine extrusion, get rid of the interior impurity of colloid, shunt the colloid through a plurality of exit ends that a rubber tube was said, carry out ...

Preparation method of 4-chlorophthalic acid

The invention provides 4-chlorophthalic acid as well as a preparation method and application thereof, and belongs to the field of organic synthesis. The invention provides a preparation method of 4-chlorophthalic acid, which comprises the following steps: mixing phthalic anhydride (phthalic anhydride), 2-benzyloxyethanol (benzyl cellosolve), trimethylpentane, chlorine and water to carry out chlorination reaction under a closed condition, so as to obtain the 4-chlorophthalic acid. According to the preparation method, phthalic anhydride is dissolved in water, and 4-chlorophthalic acid generated in the reaction process is high in solubility in the mixed solvent, so that 4-chlorophthalic acid generated in the water can be transferred into the mixed solvent in time, and the phenomenon that 4-chlorophthalic acid is substituted by chlorine again to generate a polychlorinated product is avoided; the production of side reaction products is reduced, the problems of high cost and low product yield ...

Health tea bag

The invention provides a health care tea bag which adopts tea, dandelion and sticktight as basic components and is supplemented by other components. The health care tea bag which is good in mouth feel and has homology of medicine and food is prepared scientifically; the health care tea bag comprises the following basic components: 40-55 parts by weight of oolong tea, 15-35 parts by weight of dandelion and 10-25 parts by weight of sticktight, and 8-12 parts by weight of other components; the health care tea bag comprises the following basic components: 40-55 parts by weight of green tea, 15-35 parts by weight of dandelion and 10-25 parts by weight of sticktight, and 8-12 parts by weight of other components; or the health care tea bag comprises the following basic components: 45-62 parts by weight of fermented tea, 20-38 parts by weight of dandelion and 6-15 parts by weight of sticktight, and 8-12 parts by weight of other components. The health care tea bag is prepared from the tea, the dandelion ...

Preparation of cotton type memory leisure fabric

The invention discloses a preparation method of cotton memory leisure fabric. The preparation method comprises the following steps: (1) preparation of superfine PTT filament fibers; (2) air-jet texturing composite; (3) weaving; and (4) dyeing and post finishing. The prepared fabric has the advantages of soft and comfortable hand feel, good elastic recoverability and good wrinkle resistance, the fabric is more elegant, attractive and has unique charm after being treated with advanced dyeing technique, the water diffusibility of the fabric is high, 0.1ml of water is dripped on the fabric, the absorption height reaches more than 70mm, residual moisture is less than 30% and antistatic property cloth face charge density is less than 6UC/M2 after dripping the water for 40 minutes according to adryness factor measuring method, and in the weaving procedure, a Nissan double-jet electronic free woof selecting high-speed double-jet weaving machine with an electronic muzzle is employed to weave so ...

Special filter equipment of fluid sealant

The utility model discloses a special filter equipment of fluid sealant, including the cartridge filter, be provided with the multirow on the cartridge filter and cross the filtration pore, cross the filtration pore and be the circular port, be even setting on the cartridge filter, the aperture of crossing the filtration pore is 5mm -8mm, cartridge filter one end is the entrance point, and one end is the stiff end, and the cartridge filter entrance point outside evenly is equipped with the screw thread, cartridge filter stiff end top is equipped with the mounting, and the mounting is the integral type structure, and including the installed part, installation arch and stationary hump, installed part are the cylinder, and its one end is equipped with the external screw thread, and it is protruding that the installation is connected to the other end, and the installation arch is the regular hexagon cylinder, and stationary hump is connected to the protruding one side of installation, and stationary ...

Low-temperature high-strength devitrified glass ceramics wedding agent

The invention discloses a low-temperature high-strength microcrystalline glass vitrified bond used for preparing grinding tools made of superhard material diamond and cubic boron nitride. The components and the weight percentage are that SiO2 takes 40-70%, B2O3 takes 5-25%, Al2O3 takes 2-5%, Na2O takes 2-15%, K2O takes 2-5%, MgO takes 2-4%, CaO takes 2-4%, Li2O takes 1-10%, ZrO2 takes 2-5% and Sb2O3 takes 2-5%. The microcrystalline glass is obtained by sintering the powder, the temperature of sintering-crystallization is 700-920 DEG C, the thermal expansion coefficient is 4-10*10<-6>/DEG C and the bending strength can reach 160-200MPa. The grinding tool prepared by the combination of the microcrystalline glass and the powders of diamond and cubic boron nitride can satisfy the using speed of 160m/s or more. The invention has the advantages of low sintering temperature of the bond, low thermal expansion coefficient and high strength.

Suspicious wireless signal monitoring jammer

The utility model discloses a suspicious wireless signal monitoring jammer. Including a housing, wherein a main controller, a wireless signal transceiving assembly, a baseband processor, a storage module and a communication module are fixedly arranged in the shell; the wireless signal transceiving assembly comprises an integrated broadband RF signal processor, a transmitting antenna, a receiving antenna and a power amplifier. Wherein the baseband processor is connected with the main controller, the storage module, the communication module and the integrated broadband RF signal processor, the receiving antenna and the power amplifier are connected with the integrated broadband RF signal processor, one end of the transmitting antenna is connected with the power amplifier, and the other end of the transmitting antenna extends out of the shell. According to the utility model, the miniaturization of the equipment with the functions of monitoring and interfering suspicious wireless signals is ...

Equipment and method for electrolytically concentrating low-purity heavy water and simultaneously producing high-purity deuterium gas

The invention discloses equipment and a method for electrolytically concentrating low-purity heavy water and simultaneously producing high-purity deuterium gas. The equipment comprises an electrolysis power supply (1), a water tank (2), an electrolytic bath (3), a gas-water separation chamber (4), a purification column (6), a gas storage tank (7), a thermometer (8), a synthesis chamber (9), a fire retardant layer (10), a flame arrester (11), a condensation chamber (14), a buffer chamber (15), a gas chamber (16), a gas mixing chamber (17), a water tank (18), a cooling device (20), a hydrogen gas-water separator (24) and an oxygen gas-water separator (25). The low-purity heavy water is subjected to volume reduction electrolysis concentration through the sulfonated tetrafluoroethylene fluoropolymer-copolymer membrane electrolytic cell, the low-purity deuterium gas obtained through volume reduction electrolysis is synthesized again in the synthesis chamber and condensed into the heavy water ...

码分多址系统多径搜索相对门限设定方法和装置

In the method, function of power time delay PDP(n), its average value PDPn, maximum value PDPmax and minimum value PDPmin are calculated at first. Combining with preset threshold factor Factor, relative threshold of multipaths power Thsd is calculated out. Location corresponding to function of power time delay PDP(n), which is larger than relative threshold of multipaths power Thsd, is the location of multipaths time delay. Comparing with prior art, the invention takes full advantage of characteristic of function of power time delay, obtains reasonable relative threshold of multipaths power by using handy method so as to suit each condition of wireless channel as well as varieties of signal energy and interfering energy. The invention also discloses a device for setting multipaths searching relative threshold in CDMA system.

Anticorrosive paint for outer wall of reaction kettle and preparation method of anticorrosive paint

The invention discloses an anti-corrosion coating for the outer wall of a reaction kettle and a preparation method of the anti-corrosion coating, and belongs to the technical field of coating production, the anti-corrosion coating is formed by mixing a component A and a component B according to the mass ratio of 1: 4, and the component A comprises the following raw materials in parts by weight: 20-55 parts of water-based resin; 10 to 45 parts of deionized water; 0.4-5 parts of an auxiliary agent; the component B is zinc powder; wherein the water-based resin is selected from polycarbonate diol and polycaprolactone diol with excellent alkali resistance, so that the corrosion resistance of the water-based resin is improved, and the anti-settling agent in the auxiliary agent is used for improving the adhesive force between the coating and a base material; the corrosion inhibitor in the auxiliary agent can improve the coupling effect of zinc and the base material, so that the corrosion resistance ...

A layering groove that material layering after is used for o phenylenediamine to restore

The utility model provides a layering groove that material layering after is used for o phenylenediamine to restore, including the truss, the truss top sets up the cell body, be located in the truss the below of cell body sets up U type pipe, the bottom of cell body sets up the toper groove, the lateral wall bottom of cell body sets up liquid outlet A, the lateral wall bottom in toper groove sets up liquid outlet B, the bottom in toper groove sets up liquid outlet C, the feed liquor end of U type pipe with the liquid outlet C intercommunication in toper groove. The utility model discloses in the hydrate of o phenylenediamine and salt, material enter into the cell body, then the layering of stewing, it is intraductal that the mother liquor can flow into the U type, the layering in the cell body of stewing of the hydrate of o phenylenediamine and salt, and the bottom in toper groove 4 sets up the liquid separation that liquid outlet C7 can the bottom and comes out, and the lateral wall bottom ...

Multiplex fluorescence PCR (Polymerase Chain Reaction) detection method and detection kit for typhoid/paratyphoid saimonella

The invention discloses a multiplex fluorescence PCR (Polymerase Chain Reaction) detection kit for typhoid/paratyphoid saimonella. The detection method comprises the following step of: specifically amplifying tailed primers of a ViaB gene sequence, a fliC-a gene sequence, a fliC-b gene sequence and a ssaR gene sequence of typhoid saimonella, C type paratyphoid saimonella, Atype paratyphoid saimonella and B type paratyphoid saimonella respectively, wherein the base sequences of the tailed primers are shown as SEQ ID NO:1, 2, 4, 5, 7, 8, 10 and 11; and the molecular beacon probes for detecting the ViaB gene sequence, the fliC-a gene sequence, the fliC-b gene sequence and the ssaR gene sequence of the typhoidsaimonella, the C type paratyphoid saimonella, the A type paratyphoid saimonella and the B type paratyphoid saimonella are shown as SEQ ID NO: 3, 6, 9 and 12. The detection method and the detection kit provided by the invention reach the sensitivity level of a gold standard culture method ...

Mechanical hand

The invention discloses a mechanical hand. The mechanical hand comprises a base, connecting shafts, a first motor, a second motor, an air cylinder, mechanical arms and hooks, wherein both the first motor and the second motor are fixedly installed on the base, the first motor controls the mechanical arms to move transversely, the second motor controls the mechanical arms to be lifted longitudinally and transversely, the air cylinder is installed on the connecting shafts, the output end of the air cylinder drives the mechanical arms, the hooks are hung on the mechanical arms, and hook clamps are arranged at the front ends of the hooks. According to the mechanical hand, the level principle and the connecting rod principle are adopted, the mechanical arms drive the hook clamps to move towards the near end when the mechanical arms move, and in this way, a whole basket is hooked firmly, the smoothness of the mechanical hand is improved when the mechanical hand conveys the basket, and the automation ...

Broken root bag penetrating prevention treatment method for leucaena leucocephala cv. Salvador nursery-grown plants

The invention relates to a broken root bag penetrating prevention treatment method for leucaena leucocephala cv. Salvador nursery-grown plants, and belongs to the technical field of afforestation. The treatment method relates to nursery-grown plant treatment requirements and a treatment technology and specifically includes the steps that annual container-grown seedlings are adopted in bag penetrating prevention treatment, containers are generally nutrition bags with the specifications being 11 cm*14 cm, the bag seedlings are pulled up by the roots 10-20 days before the nursery-grown plants are planted, one thing to note is that the nutrition bags cannot be broken when the seedlings are pulled up, and soil balls in the nutrition bags cannot be broken either; the root systems of the nursery-grown plants which penetrate out of the nutrition bags are cut, trunks of 0.6-1.5 m are reserved, and the redundant parts are cut off; lateral branches and leaves are removed, seedling ridge furrows are ...

Borosilicate foam glass artificial floating island material and preparation method thereof

The invention discloses a borosilicate foam glass artificial floating island material comprising the following raw materials by mass percent: 50-60% of SiO2, 10-20% of H3BO3, 15-20% of Na2CO3, 3-6% of K2CO3, 2-5% of Al2O3, 0.5-1% of external foaming agent, 1-4% of foaming promoter and 4-6% of foam stabilizer, wherein the foaming agent is carbon black, the foaming promoter is calcium sulfate, and the foam stabilizer is diammonium hydrogen phosphate. Experimental steps comprise burdening, wet grinding, dry grinding, sieving and burning. The compressive strength of the artificial floating island material disclosed by the invention is 2.12-4.27MPa, the flexural strength is 2.09-4.16MPa, and the density is 0.327-0.496g/cm<3>, so that the application in an artificial floating island can be satisfied.

Dispersion activity one-bath dyeing process for cotton-polyester blended fabric

The invention provides a cotton-polyester blended fabric dispersion activity one-bath dyeing process, and relates to the technical field of one-bath dyeing processes, which comprises the following steps: S1, a pretreatment stage; s2, a material selection stage; s3, a blending stage; s4, a dyeing stage; and S5, a cleaning stage. The color can be firmly fixed on the cotton-polyester blended fabric raw material under the condition of high temperature and the use of the color fixing agent, the water is controlled in a rolling manner, the dyeing dye is squeezed into the dye bath again, the redundant dye can be squeezed out in the rolling manner, and the color fixing effect is good. Then putting the cotton-polyester blended fabric raw material into the dye bath again, shaking up and down at 3HZ, taking out the cotton-polyester blended fabric raw material subjected to secondary dyeing, controlling water in a rolling manner, squeezing the dyeing dye into the dye bath again, and taking out the cotton-polyester ...

Method for analyzing polymorphic site Cdx-2 of VDR (vitamin D receptor) gene and application thereof

The invention is applicable to the field of biotechnologies, and provides a method for analyzing a polymorphic site Cdx-2 of a VDR (vitamin D receptor) gene and an application thereof. The method comprises the steps of designing a PCR (polymerase chain reaction) primer for amplifying Cdx-2 polymorphic site fragments of the VDR gene, forming a specificity PCR primer through mutation of a basic group near 3' end of the PCR primer, and forming a restriction enzyme cutting site capable of being identified by BseMII incision enzyme through the mutation basic group of the specificity PCR primer and the G allele basic group of the Cdx-2 polymorphic site; amplifying the DNA (deoxyribonucleic acid) fragment of the Cdx-2 polymorphic site by the specificity PCR primer so as to obtain a PCR amplification product; carrying out enzyme digestion reaction on the amplification product by the BseMII incision enzyme so as to obtain an enzyme-digested product; and carrying out electrophoresis on the enzyme-digested ...

Novel corundum abrasive and preparation thereof

The invention discloses a novel corundum abrasive, the main crystal phase of which is Al2O3; according to the weight percentage, the raw material of the abrasive comprises 99.15-99.85 percent of Al2(SO4)3 question mark 18H2O or AlNO3 question mark 9H2O, and 0.15-0.85 percent of additive, wherein, according to the weight percentage, the additive comprises 0-25 percent of Ca(NO3)2, 0-15 percent of Fe(NO3)3, 0-10 percent of (CH3CH2O)4Ti, 0-30 percent of Mg(NO3)2, 40-90 percent of C8H20O4Si and 0-8 percent of Sb(CH3COO)3. Ammonia is used as precipitator and wet-chemical method is used for preparing Al(OH)3 solid which is subsequently screen, granulated and sintered at the temperature of 1250-1400 DEG C, thus obtaining the novel corundum abrasive. The shape of the abrasive grain is controllable and the microscopic diameter thereof is ranging from 50nm to 3Mu meters. The novel corundum abrasive reduces the loss of the energy resource, improves the tenacity of the traditional capacitance corundum ...

Molecular design of IBDV (Infectious Bursal Disease Virus) antigen epitope and HBcAg (Hepatitis B Core Antigen) chimeric gene

The invention relates to a molecular design of an IBDV (Infectious Bursal Disease Virus) antigen epitope and HBcAg (Hepatitis B Core Antigen) chimeric gene, belonging to the field of biological pharmacy. The molecular design comprises the following steps of: establishing an expression plasmid pET-mHBc of an HBcAg-modified gene by applying an overlap extension PCR (Polymerase Chain Reaction) technology; directionally inserting an infectious bursal disease virus gene 5epis into the expression plasmid mHBC gene, acquiring an expression plasmid pEt-mHBc-5epis, and expressing the pEt-mHBc-5epis in colibacillus, wherein the molecular weight of recombinant chimeric protein is about 29kDa, and the expression level accounts for about 47.6 percent of total bacterial protein, the diameters of virus-like particles are about 60 to 80nm, and the antigen valence reaches 2.0*102. The 5epis and HBcAg chimeric gene which is successfully established by adopting the molecular design efficiently expresses the ...

Special filter of fluid sealant

The utility model discloses a special filter of fluid sealant, including cartridge filter and filtration connector, it crosses the filtration pore to be provided with the multirow on the cartridge filter, cartridge filter one end is the entrance point, and one end is the stiff end, and the cartridge filter entrance point outside evenly is equipped with the screw thread, cartridge filter stiff end top is equipped with the mounting, and including the installed part, installation arch and stationary hump, installed part are the cylinder, and its one end is equipped with the external screw thread, and the installation arch is the regular hexagon cylinder, and stationary hump is round platform type structure, the cartridge filter stiff end is equipped with the internal thread, it registrates to filter the connector the cartridge filter is outside, and its both ends all are equipped with the connecting plate, and the link plate edge evenly is provided with the connecting hole, filtering the inside ...

Sintering grinding medium and preparation thereof

The invention provides an abrasive which is prepared by the steps as follows: 0.5-2.5Mu meter of corundum (95-98 percent) sold in the market, silicon carbide, diamond or cubic boron nitride abrasive micro-powder are mixed with 2-5 percent of ceramic adhesive, thermally disposed under high temperature of 840-1200 DEG C and combined with the abrasive micro-powder by the ceramic combination phase to form the abrasive with microcrystalline structure, wherein, according to the weight percentage, the raw material of the ceramic adhesive comprises 5-20 percent of NaO, 10-25 percent of B2O3, 45-70 percent of SiO2, 13-17 percent 4-5 components of Li2O, MgO, K2O, CaO and ZnO; all raw materials are sequentially mixed, screened, smelted, quenched, dried, crushed, screened to prepare the sintered abrasive, the granularity, classification and application of which are consistent to that of the corundum, carborundum, diamond or cubic boron nitride abrasive. The abrasive changes the internal structure of ...

Kneading machine is put with going out mucilage binding

The utility model provides a kneading machine is put with going out mucilage binding, its characterized in that includes first pipeline, second pipeline, raw materials pipeline, income rubber tube way, play rubber tube way and gear pump, the utility model discloses simple structure, reasonable in design uses and closes and open different stop valves by the cooperation of pipeline, stop valve and gear pump, has realized that the raw materials of colloid when the kneading machine middle finishing gets into, the operational transformation of compounding circulation and colloid output, and the colloid raw materials flows in the pipeline always, has reduced the possibility of sneaking into impurity, need not artifical compounding simultaneously, has promoted kneading machine work efficiency greatly, and the operation flow of optimization has promoted the processing effect.

Molecular design for simulating IBDV multi-epitope gene and use thereof

The invention relates to a molecular design of a simulated IBDV multi-epitope gene and application of the molecular design, and belongs to the field of biopharmaceutical industry. The molecular design synthesizes the simulated IBDV multi-epitope gene epis with immune protection function according to an effective antigen epitope motif design of immune protection, constructs a recombinant expression plasmid pET-epis with genetic engineering techniques, leads the epis gene to be expressed in colon bacillus, and finally prepares a genetically engineered IBDV epitope vaccine with an antigen of a recombinant IBDV multi-epitope protein rEPIS that is expressed in colon bacillus and corresponding adjuvant agents, and the genetically engineered IBDV epitope vaccine can be used for preventing and controlling infectious bursal disease. In the epis molecular design, a linear sequence is adopted to simulate IBDV space conformation dependent epitope motif, and consequently the recombinant rEPIS that is ...

Efficient-secretion canine parvovirus resistant monoclonal antibody hybridoma cell A135 strain

The invention relates to an efficient-secretion canine parvovirus (CPV) resistant monoclonal antibody hybridoma cell A135 strain and belongs to the technical field of biology. The hybridoma cell A135 strain selected from the secretion CPV resistant monoclonal antibody hybridoma cell bank is excellent in biological performance and is injected with ascetic fluid generated in a BALB/C mouse peritoneal, so that neutralizing titer is up to 1010. In addition, the hybridoma cell A135 strain has moderate neutralizing capacity for various CPV subtype virus strain such as CPV-2a, CPV-2b, CPV-2c (a) and CPV-2c (b) and CPV strains from foxes and raccoon dogs, is wide in anti-CPV strain range and is used for clinical treatment of attacked dogs with CPV diseases, and effective rate is up to 100%.

Low-temperature high-strength devitrified glass ceramics bond cubic boron nitride grinding wheel

The invention discloses a cubic boron nitride grinding wheel with low-temperature and high-strength microcrystalline glass ceramic binder. The cubic boron nitride grinding wheel consists of a matrix, a binding course and a grinding wheel block. The grinding wheel block is a cubic boron nitride grinding wheel block, and adopts the following raw materials (according to the weight percentage of the content): 45 to 80 percent of cubic boron nitride abrasive, 0 to 20 percent of corundum, and 20 to 35 percent of ceramic binder; the ceramic binder is the microcrystalline glass ceramic binder, and the raw material composition and the weight percentage content is as follows: 40 to 70 percent of SiO2, 5 to 25 percent of B2O3, 2 to 5 percent of Al2O3, 2 to 15 percent of Na2O, 2 to 5 percent of K2O, 2 to 4 percent of MgO, 2 to 4 percent of CaO, 1 to10 percent of Li2O, 2 to 5 percent of ZrO2 and 2 to 5 percent of Sb2O3. The invention provides a high efficiency grinding tool which has the advantages ...

Block docking method for water surface boat with outer surface paved with flexible materials

The invention discloses a block docking method for a water surface boat with the outer surface paved with flexible materials. By the adoption of the method, repeated docking and block docking of the water surface boat paved with the flexible materials can be reliably achieved so that the boat can be maintained. The method comprises the steps that when the water surface boat is built, before the outer surface of the water surface boat is paved with the flexible materials, the block docking position of the water surface boat is paved with block docking piles at first, and then the corresponding position, except the position where the block docking piles are located, of the outer surface of the boat is paved with the flexible materials after pavement of the block docking piles; when block docking needs to be carried out on the boat, a block docking block is made to correspond to the block docking piles, and the block docking block is borne through the block docking piles.

Mullite polycrystalline fibre reinforced foam glass

Mullite polycrystalline fibre reinforced foam glass is disclosed. Raw materials of the foam glass comprise following components by mass: 54-63% of SiO2, 4-6% of Al2O3, 12-18% of B2O3, 12-20% of Na2O, 4-6% of K2O, 0.5-5.5% of a foaming agent, 2-6% of mullite polycrystalline fibre, and 0.5-2% of a foam stabilizer. The foaming agent is dextrin, graphite or calcium carbonate. The foam stabilizer is Na2HPO4 or K3PO4. The foam glass is prepared by a powder sintering method and is sintered in an air atmosphere having a temperature of 850 DEG C. The foam glass has high mechanical strength, high compressive strength, high bending strength and small volume density, and can be widely applied in the field of superaqueous landscape aerosol carriers that are green and stable in performance, the field of thermal insulation and damp proofness of wall buildings, and other fields.

Low-temperature high-strength devitrified glass ceramics wedding agent

The invention discloses a low-temperature high-strength microcrystalline glass vitrified bond used for preparing grinding tools made of superhard material diamond and cubic boron nitride. The components and the weight percentage are that SiO2 takes 40-70%, B2O3 takes 5-25%, Al2O3 takes 2-5%, Na2O takes 2-15%, K2O takes 2-5%, MgO takes 2-4%, CaO takes 2-4%, Li2O takes 1-10%, ZrO2 takes 2-5% and Sb2O3 takes 2-5%. The microcrystalline glass is abtaind by sintering the powder, the temperature of sintering-crystallization is 700-900 DEG C, the thermal expansion coefficient is 4-10*10-6/DEG C and the bending strength can reach 160-200MPa. The grinding tool prepared by the combination of the microcrystalline glass and the powders of diamond and cubic boron nitride can satisfy the using speed of 160m/s or more. The invention has the advantages of low sintering temperature of the bond, low thermal expansion coefficient and high strength.

Portable cast iron type heating radiator outer surface cleaning device

The utility model belongs to the technical field of heating radiator cleaning tools, and particularly relates to a portable cast iron type heating radiator outer surface cleaning device. The device comprises a portable box and a cleaning brush, lifting rods are arranged on two sides of the upper part outside the portable box; a water pump, a shunting water tank and a driving motor are arranged inthe portable box; the water storage tank and the cleaning brush are connected to the portable box through a sliding bearing support. Four waist-shaped holes are formed in the front side wall of the portable box in parallel at equal intervals; a plurality of positioning holes are formed in the upper side of the waist-shaped hole; the opening end of the cleaning brush is fixedly sleeved with a sliding bearing; the sliding bearing support is located in the kidney-shaped hole, a belt wheel is further fixed to the position, at the opening end of the cleaning brush, of the inner side of the portablebox ...

Press a jar machine moulding device

The utility model provides a pair of press a jar machine moulding device, a serial communication port, including device main part and the supporting moulding bucket that sets up, the device main part includes bottom plate, hydraulic pressure cylinder, fixed horizontal pole, moulding straight -bar, briquetting and evacuation pump, and its simple structure, reasonable in design, solve colloid be at the barrelling in -process, mix with the condition of a large amount of air in the transition, and after the colloid barrelling, density is even, has reduced hybrid air in simplified by a wide margin, and that has slowed down the colloid takes place oxidation, the ageing condition because of putting, has promoted product quality.

Method for analyzing selenoprotein gene expression profile of rats based on qPCR

The invention is applicable to the biological technical field and provides a method for analyzing a selenoprotein gene expression profile of rats based on qPCR (quantitative Polymerase Chain Reaction). The method comprises the following steps: designing qPCR primers of mRNAs (messenger Ribonucleic Acid) of selenoprotein genes and reference genes Actb and Gapdh of rats, respectively, so that at least one or qPCR primers of the genes except for the genes without intrones is the qPCR primer of a trans-introne gene; extracting and purifying the total RNAs of the rats, and synthesizing cDNA (complementary Deoxyribose Nucleic Acid) with the total RNAs as templates, thereby obtaining a qPCR template; performing qPCR amplification on the qPCR template, then performing qPCR analysis on the amplification product and calculating the amplification efficiency. The method is simple and fast to operate, and accurate in quantification, and is capable of realizing efficient and accurate analysis of the ...

Be used for fashioned frock of silicone fluid sealant

The utility model provides a pair of be used for fashioned frock of silicone fluid sealant, including silicone fluid sealant shaping iron plate and floating rule, silicone fluid sealant shaping iron plate includes iron plate and bolt, is equipped with splint on the iron plate, and the splint both sides are equipped with rectangular v block v piece, are equipped with the fixed plate on the iron sheet, simple structure, and reasonable in design, both cooperate the use silicone fluid sealant shaping iron plate and floating rule, and the silicone fluid sealant smooth surface of making, level and smooth does not have unsmooth phenomenon, while more even, produced silicone fluid sealant bubble -free of atress in manufacturing process, the bonding force and the tensile strength of effectual promotion product, reduce cost improves work efficiency.

Single-component organic silicon solar photovoltaic module sealant without corrosion to copper and preparation method thereof

The invention discloses a single-component organic silicon solar photovoltaic module sealant without corrosion to copper and belongs to the technical field of the sealants. The sealant is prepared by reaction of raw materials including the following components: 100 parts of 107 silicone oil, 10-200 parts of reinforcing filler, 0.1-1 part of silane coupling agent, 0.01-0.5 part of catalyst, 5-10 parts of cross-linking agent and 0.1-1 part of copper protective agent; and the copper protective agent is imidazole and/or 4-methylimidazole. The invention also discloses a preparation method of the sealant. The single-component organic silicon solar photovoltaic module sealant without corrosion to copper has the advantages of excellent copper protective function, excellent mechanical properties and excellent anti-aging property and can be widely used for sealing solar module frames; the invention also provides the preparation method of the sealant; the method also has the advantages that materials ...

Health-care shoes with Chinese medicine

Funnel bottom fish-scale pit soil preparation technology

The invention relates to funnel bottom fish-scale pit soil preparation technology and belongs to the technical field of afforestation soil preparation. The funnel bottom fish-scale pit soil preparation technology is characterized in that semilunar pits are dug on a steep barren mountain slope from top to bottom along a contour line and arranged in the shape of a Chinese character 'pin', and a vertical side of each semilunar pit faces the upper portion of the barren mountain slope while a semilunar face of the same faces the lower portion of the barren mountain slope; one side of each semilunar is the vertical side, the side, close to the vertical side, of each semilunar is semilunar, each semilunar pit is a funnel bottom with a large upper opening and a small lower opening, is fish-scale-shaped and is called a funnel bottom fish-scale pit, soil preparation specification of each semilunar pit is width of the upper opening x longitudinal width x depth=100cmx80cmx60cm, and specific specification ...

Medicine for treating pneumoconiosis

The invention relates to a medicine for treating pneumoconiosis, which has simple preparation method and low cost. Zinc gluconate, piperaquine phosphate, tilorone dihydrochloride and traditional Chinese medicinal herbs fourstamen prismatomeris root and licorice are used as main ingredients of the medicine. The medicine is orally administered in the form of tablets, so as to be convenient in carrying and administration for patients. Meanwhile, the medicine has good curative effect on pneumoconiosis, and is suitable for pneumoconiosis patients at various ages and stages.

Ceramic bonding agent cubic boron nitride grinding wheel applied for camshaft grinding processing

Kneader

The utility model provides a kneader, includes the kneader main part, its characterized in that, it puts to be provided with out the mucilage binding in the kneader main part, it puts including first pipeline, second pipeline, raw materials pipeline, goes into the rubber tube way, goes out rubber tube way and gear pump to go out the mucilage binding, the utility model discloses simple structure, reasonable in design uses and closes and open different stop valves by the cooperation of pipeline, stop valve and gear pump, has realized that the raw materials of colloid when the kneader middle finishing gets into, the operational transformation of compounding circulation and colloid output, and the colloid raw materials flows in the pipeline always, has reduced the possibility of sneaking into impurity, need not artifical compounding simultaneously, has promoted kneader work efficiency greatly, and the operation flow of optimization has promoted the processing effect.

Medicine for treating pneumoconiosis

The invention relates to a medicine for treating pneumoconiosis, which has simple preparation method and low cost. Zinc gluconate, piperaquine phosphate, tilorone dihydrochloride and traditional Chinese medicinal herbs fourstamen prismatomeris root and licorice are used as main ingredients of the medicine. The medicine is orally administered in the form of tablets, so as to be convenient in carrying and administration for patients. Meanwhile, the medicine has good curative effect on pneumoconiosis, and is suitable for pneumoconiosis patients at various ages and stages.

Single-component silane modified polyether sealant and preparation method thereof

The invention discloses a single-component silane modified polyether sealant, belonging to the technical field of sealants. The single-component silane modified polyether sealant is prepared by reacting the following raw materials in percentage by weight: 30-50% of silane modified polyether prepolymer, 5-20% of plasticizer, 2-5% of titanium white, 30-50% of calcium carbonate, 0.5-1.5% of coupling agent 1, 0.5-1.5% of coupling agent 2, 0.5-1.5% of stabilizer, 0.5-1.5% of ultraviolet absorbent and 0.1-1% of catalyst U-220HThe invention also discloses a preparation method of the sealant. The silane introduced into the polyether enhances the bonding property of the sealant for glass, and solves the problem of bubbling since the polyurethane and silicone sealants react with the paint surface; the sealant has the advantages in both the polyurethane and silicone sealants, has no toxic substances (no free NCO) in the chemical composition, has no emission of harmful gases in the curing process, ...

Lactobacillus salivarius SIL1 and application thereof

The invention discloses porcine source lactobacillus salivarius SIL1 and application thereof and belongs to the technical field of microorganisms. The lactobacillus salivarius SIL1 has high tolerance to acid, cholate and temperature, can tolerate culture solution with pH3 and cholate content of 6 grams per liter and can grow in simulated gastrointestinal juice. After the lactobacillus salivarius SIL1 is treated at the temperature of 60 DEG C for 30 minutes, the growth of strains is not influenced. The lactobacillus salivarius SIL1 has 100 percent of bacteriostatic effect on in vitro cocultureEscherichia coli and salmonella, can be colonized into animal intestinal canals, and has functions of adjusting the distribution of animal intestinal flora and promoting animal growth.