130results about How to "Act as a stabilizer" patented technology

The invention relates to a preparation method of a nano-silver coating of chitosan modified fabric. According to the preparation method, the nano-silver coating is formed on the chitosan modified fabric or textile through silver ion adsorption and in-situ reduction by amino groups and hydroxyl groups on the surface of chitosan under the condition that no reducing agent is added, the silver supporting capacity of the fabric reaches 0.1-200 mg Ag / m<2> and 1-50 mg Ag / g, and the sizes of nano-silver particles are 5-20 nm. The nano-silver particles are uniformly distributed in the fabric and has good dispersity and excellent antibacterial performance. The preparation method is simple in process, needs no reducing agent and is environment-friendly, low in cost and suitable for mass production. The prepared fabric provided with the nano-silver coating has broad application prospects in antibacterial textiles.

The invention discloses a GCL vertical anti-seepage wall and a preparation method thereof. The GCL vertical anti-seepage wall comprises a vertical anti-seepage wall body, wherein a sodium-based geosynthetic clay liner is fixed at the outer side of the vertical anti-seepage wall body, and the sodium-based geosynthetic clay liner comprises a vertical anti-seepage structure and a top fixation structure. The anti-seepage wall disclosed by the invention has a low permeability coefficient, and is good in bonding with a soil mass, and high in anti-seepage effect.

The invention discloses a short side chain anti-sludge polycarboxylic acid water reducer and a preparation method thereof. Small molecule unsaturated vinyl ether, unsaturated polyacid / unsaturated polybasic anhydride, unsaturated polyacid monoalkyl ester and sulfonic-acid-group-containing unsaturated betaine are polymerized in water solution to form the short side chain anti-sludge polycarboxylic acid water reducer. The short side chain small molecule unsaturated vinyl ether replaces a traditional polyether macromonomer, as a side chain structure is shorter, a polycarboxylic acid structure hashigher electric charge density, on one hand, spatial repulsive force reduction caused by a short side chain can be remedied, on the other hand, intercalation adsorption of the side chain in a clay interlayer structure can be reduced, and the clay mineral tolerance of the polycarboxylic acid water reducer is improved.

The invention relates to a probiotics cereal yogurt and a preparation method thereof. The yogurt is composed of the following components by weight: 600-800 parts of cow's milk, 60.0-240.0 parts of tremella pulp, 20.0-80.0 parts of barley puffed powder, 5.0-20.0 parts of honey, 3.0-8.0 parts of whey protein powder and 0.2-0.8 part of composite bacteria. The preparation method of the yogurt is as follows: pretreating the cow's milk, inoculating lactobacillus, fermenting, mixing the barley puffed slurry with tremella slurry, inoculating probiotics, fermenting, adding the mixture to the fermented milk, mixing well and fermenting again; or mixing the pretreated main ingredients and accessories, inoculating lactobacillus and probiotics, and conducting mixed fermentation. The prepared probiotics cereal yogurt has unique flavor, smooth delicate taste, contains dietary fiber, tremella polysaccharide and microelement selenium, and has the health effects of relieving constipation and preventing and resisting cancer.

The invention provides an environment protective mildewproof piece and a preparation method thereof; the mildewproof piece comprises raw materials in the following weight percent: 25 percent to 50 percent of plastics, 15 percent to 40 percent of filler, 25 percent to 45 percent of wax and 2 percent to 10 percent of chlorine dioxide; the preparation steps are as follows: the raw materials are fully mixed, evenly stirred, put into an extruder to be heated and extruded into sheets after being melted; the environment protective mildewproof piece has small size, can be widely applied in products, such as food, garment, shoes and leather, has the advantages of sterilization, bacteriostasis, mildewproof, etc., is long-lasting, has strong release performance, is convenient in use and has no pollution to the environment.

The invention belongs to the technical field of two-dimensional material preparation, and particularly relates to high-concentration high-stability transitional metal chalcogen compound printing ink for ink jet printing and a preparation method of the printing ink. Specific to the problem that as current transitional metal chalcogen compound nano sheet printing ink is low in concentration and poorin stability, the use and storage are inconvenient, the technical scheme of the invention is characterized in that the preparation method comprises the following steps: [1] selecting two kinds of stripping solvents, and preparing a binary good solvent system; [2] adding a water-soluble high-molecular compound into the binary good solvent system to obtain a mixed solvent; [3] stripping a nano sheet of a transitional metal chalcogen compound from transitional metal chalcogen compound powder by using an ultrasound stripping method; [4] performing centrifugal separation, and taking supernate, i.e., transitional metal chalcogen compound nano sheet dispersion liquid; and [5] adding a conditioning agent with a physical property to obtain the transitional metal chalcogen compound printing ink. The transitional metal chalcogen compound printing ink is suitable for the ink jet printing of a transitional metal chalcogen compound two-dimensional material.

The invention discloses a tunneling machine. The tunneling machine comprises a cutterhead, a driving set for driving the cutterhead to rotate, a shield, an adjusting oil cylinder and a propelling system, wherein the shield comprises an inner shield connected onto the rear end of the cutterhead and an outer shield which sleeves the outer side of the inner shield and is fixedly connected with the inner shield; a fit clearance is formed between the inner shield and the outer shield; the adjusting oil cylinder is fixedly arranged on the inner shield; a retractable piston of the adjusting oil cylinder penetrates through the fit clearance between the inner shield and the outer shield; and the propelling system is fixedly connected into an inner cavity of the inner shield and is used for propelling the tunneling machine. Meanwhile, the invention further provides a tunneling method, aiming at solving the problems of getting stuck and stopping, caused by great-depth and crushed tunnels in unfavorable geological conditions. The tunneling machine provided by the invention has the advantages of high tunneling efficiency, energy saving, environment protection and the like.

The invention discloses a high-temperature-resistant polyether-ether-ketone composite material. The composite material is prepared from the following components in parts by weight: 70-80 parts of polyether-ether-ketone, 10-20 parts of carbon fibers, 1-5 parts of nano silicon dioxide, 1-5 parts of hollow glass microspheres, 1-5 parts of hydrotalcite, and 0.5-3 parts of a titanate coupling agent. The invention also discloses a preparation method of the high-temperature-resistant polyether-ether-ketone composite material. The high-temperature-resistant polyether-ether-ketone composite material provided by the invention has the characteristics of good mechanical properties and high-temperature resistance.

The invention discloses an intervertebral fusion fixator, relates to the field of medical instruments, and aims to provide a fusion fixator which is matched with anterior cervical approach vertebral X-shaped excision decompression vertebroplasty and can shorten the bone crawling substitution distance, shorten the fusion time and increase the bone grafting fusion success rate. According to the technical scheme, the intervertebral fusion fixator for X-shaped excision decompression vertebroplasty of the vertebral body comprises a fusion fixing body and screws, the fusion fixing body is provided with three bone grafting cavities, the horizontal section of the first bone grafting cavity is in a fan shape, the outer sides of the two radiuses of the fan shape are the second bone grafting cavity and the third bone grafting cavity respectively, a fixing blocking piece is arranged above or below the arc edge of the fan shape, the fixing blocking piece is provided with a through hole and the first screw, and the first screw is used for being implanted into a replantation bone block; and fixing holes are formed in the arc edge of the first bone grafting cavity, and screws used for implanting residual vertebral bodies on the two sides and adjacent normal vertebral bodies are arranged in the fixing holes. The intervertebral fusion fixator is suitable for the anterior cervical approach vertebral X-shaped excision decompression vertebroplasty.

The invention provides a food detection device for a food processing factory, and relates to the field of detection devices. The food detection device comprises a base, wherein a first support post isfixedly arranged at the left side of the top of the base; a lower fixing plate is fixedly arranged at the left side of the first support post; an upper fixing plate is arranged at the upper side of the lower fixing plate; a tooth belt is arranged between the lower fixing plate and the upper fixing plate; the bottom of the upper fixing plate is fixedly provided with a first motor; a driving gear is arranged at one side of the tooth belt; a rotating shaft of the first motor and the driving gear are in transmission connection. The food detection device for the food processing factory has the advantages that through a second motor, a detecting head can be driven to rotate in an omnibearing way, so that food in a sample placing groove can be detected in an omnibearing way; the detection structure can be improved; the detection efficiency is greatly improved; the detection for many times is not needed; the labor of workers is reduced; through a third motor, a detection rotating tube can bedriven to rotate, so that the detecting head can detect the food in an omnibearing way; the food detection efficiency is improved.

The invention discloses a leg strength leg swing exercise trainer, and belongs to the field of sports equipment. The leg strength leg swing exercise trainer comprises a middle pulley, a front pulley, a steel wire rope, a back cushion, a rotating wheel, a counterweight unit, handles, a seat cushion, a force transfer support, force application foot pads and a fixing support. When using the leg strength leg swing exercise trainer, a user sits on the seat cushion, the back of the user leans against the back cushion, front-back positions can be adjusted, two hands of the user grip the handles, two shank ankles of the user forcefully push the force application foot pads to swing forwards and upwards, and then two legs of the user are slowly relaxed. A driving wheel can synchronously and correspondingly rotate through a force transfer part, the steel wire rope fixed onto the driving wheel is drawn to move downwards, bypasses the pulleys and finally enters the counterweight unit, and a balancing weight is driven to move up and down. The process is repeated for some times, and leg muscle strength can be trained. The leg strength leg swing exercise trainer is simple in structure, small in size, not limited by sites and time, convenient to carry, easy to operate and wide in applicable range, and is a necessary exercise rehabilitation instrument for professional sports teams and hospitals.

The invention discloses a method for detecting directional reflection imaging of a single-drilled geological radar. The method comprises the following steps: drilling and sampling, placing a geological radar antenna into the bottom of a drill hole first, then pulling the geological radar antenna back to the ground, connecting a drilling radar directional detection tube through a thread, fixing a detection tube fixer to the ground, placing the geological radar antenna into a radar detection channel in the drilling radar directional detection tube, connecting the geological radar antenna to a distance measuring wheel and a computer, adjusting the angle of the drilling radar directional detection tube with the detection tube fixer and a tripod, contrasting full-space reflected radar wave images and reflected radar wave images of each fixed angle, and determining a specific orientation of the abnormal body. The method solves the problem that the single-hole geological radar reflection imaging cannot determine the orientation of a reflector through detection of different directions, and has great significance to the implementation of project and the transparency of the geological body.

The invention discloses a composition for resisting canine parvovirus, freeze-dried powder, and a preparation method and use of the freeze-dried powder, and belongs to the technical field of veterinary feed additives. The composition comprises, by weight, 95-97 parts of a canine parvovirus-resistant yolk antibody and 1-5 parts of a canine parvovirus-resistant transfer factor. The freeze-dried powder comprises, by weight, 95-97 parts of the canine parvovirus-resistant yolk antibody, 1-2 parts of the canine parvovirus-resistant transfer factor, 0.2-0.3 parts of an inactivator, 0.01-0.02 parts of an antiseptic and 2.05-3.6 parts of a heat-resistant freeze-dried protective agent, and has the advantages of low preservation conditions, long preservation time, high antibody titer and good biological activity. Through combined use of the canine parvovirus-resistant transfer factor and the canine parvovirus-resistant yolk antibody, the freeze-dried powder has effects of preventing and treating canine parvovirus-caused diseases, improves dog immunity and survival rate, is convenient for use and has a low cost.

The invention belongs to the technical field of biological medicine, and particularly relates to mivacurium chloride and a preparation method of an injection thereof. The mivacurium chloride is prepared from R-5'-methoxy laudanosine and trans-octenedioic acid as raw materials through amine alkylation, ester exchange and other reactions, and finally high-purity mivacurium chloride is obtained. Themivacurium chloride is less in impurity generation, the product is easy to separate and purify, meanwhile, formation and discharge of a large amount of (S)-5-methoxy laudanosine are avoided, and the injection prepared from the raw materials is less in impurity and stabler.

An arm muscle strength trainer comprises a top pulley, a rope, a pin shaft, a handle, a rack, a duplex pulley, a roller, a reversing pulley, a weight unit, a seat and a bottom pulley. The handle is hinged on the upper portion of the rack through the pin shaft, the top pulley is welded on the rear portion of the handle, the duplex pulley is hung between the top pulley and the reversing pulley through the rope, one end of the rope is connected with the lower portion of the duplex pulley while the other end of the same bypasses the reversing pulley and the bottom pulley and then is connected on a weight of the weight unit, the reversing pulley is welded on the outer side of the bottom of the rack, the bottom pulley is welded on the inner side of the bottom of the rack, the seat and the roller are mounted on the rack, and the weight unit is mounted on the left side of the rack. The handle is tightly held by two hands, the stomach is enabled to be close to the roller, the handle is pulled downwards by the hands forcefully, at the moment, the other end of the handle swings by a certain angle around a supporting point, and the rope is in up-down traction action and sequentially bypasses the top pulley, the duplex pulley, the reversing pulley and the bottom pulley to enter the weight unit to drive the weight inside to move up and down.

The invention discloses an ultrasonic detection device and a medical imaging system. The ultrasonic detection device comprises an ultrasonic transducer and a container for accommodating the ultrasonictransducer, the interior of the container is filled with an ultrasonic coupling agent, and the working surface of the container is provided with an opening; a transparent flexible film is laid on thesurface of the opening, the flexible film responds to the pressure difference between the two sides of the flexible film and is evenly stretched in the direction close to the ultrasonic transducer, aconcave cavity capable of containing a detected part of a human body is generated, and the depth of the concave cavity can be adjusted so as to be matched with detected parts of different sizes. According to the invention, the flexible film is uniformly stretched by adopting pressure control, the thickness of the flexible film is gradually reduced in the stretching process, the thickness of the stretched flexible film is uniform, and the imaging effect is not influenced by non-negligible attenuation on illumination or sound signals; the flexible film effectively isolates the ultrasonic coupling agent and the examined part in the container, the ultrasonic coupling agent does not need to be replaced for different patients, and cross infection between different examinees cannot be caused.

The invention discloses a flash rusting liquid medicine applicable to an MSAP process. A banking agent and copper ions in the liquid medicine form a complex to be attached to the surface of copper, sothat base copper between circuits can spray towards the liquid in horizontal spraying equipment; a complex protection film is cracked easily to enable the base copper to be etched and dissolved, while a complex protection film on the side wall of the circuit suffers from relatively low liquid disturbance, so that copper on the side wall can be protected from corrosion; therefore, coating of an etching suppression layer before flash rusting is not needed; the banking agent can control the circuit side wall etching rate to be half of the top etching rate; by virtue of a wetting agent, the copper surface hydrophilicity is improved, so hat the etching liquid can be fully reacted with copper to achieve an etching acceleration effect; by virtue of a stabilizing agent, hydrogen peroxide can be decomposed and high in copper resistance; the flash rusting liquid medicine can process fine circuits with linewidth and line spacing of 45[mu]m or below; and in addition, high reliability is achievedin the circuit etching process, vacuum etching equipment is not needed, and low cost, simple process, and easy management and control are achieved.

The invention relates to a method of monitoring total chromium in water and discloses a method of on-line monitoring total chromium in water with potassium chlorate as an oxidant, wherein the method includes following steps: (1) sampling: adding 10 ml of a water sample being 6-9 in pH value from exterior to a reaction chamber of an instrument through an extraction apparatus; (2) addition of the oxidant: adding 5ml of the oxidant, a saturated potassium chlorate solution, to the reaction chamber of the instrument and stirring the mixed liquid uniformly; (3) sealed heating: sealedly heating the mixed liquid at a constant temperature of 100 DEG C for 10 min, and cooling the mixed liquid to room temperature; (4) color development: adding 1.5 ml of a mixed acid solution composed of sulfuric acid, phosphoric acid and water according to the volume ratio of 1:1:15, and adding 1.5 ml of a color development agent, which is an ethanol solution containing diphenylcarbazide and phthalic anhydride, with stirring uniformly, and performing a color development reaction for 2 min; and (5) measurement: measuring the absorbance with a 540 nm light source and substituting the absorbance into a standard operation curve according to the absorbance of series standard solutions to calculate the concentration of total chromium in the water sample, wherein the result is displayed on and stored in the instrument or is sent to a data acquisition instrument. The method can save time and energy and is simple and accurate.

The utility model relates to a weight-bearing rack for pushing with both arms, which belongs to the field of sports equipment. Including counterweight unit, force application handle, upper pulley, rope, middle pulley, backrest, seat, lower pulley, pedals, frame, backrest, seat and pedals are installed on the left side of the frame, counterweight The unit is assembled on the right side of the frame, the force-applying handle is hinged on the upper left side of the frame through a pin shaft, one end of the rope is fixed on the frame, and after going around the upper pulley, middle pulley and lower pulley, it enters the counterweight unit and is fixed on the The counterweight becomes one body, and the upper pulley is hinged on the force-applying handle. When in use, the person sits on the seat, leans on the backrest, steps on the pedals with both feet, holds the handle of the force application member tightly with both hands, and pushes the force application handle upward with both hands. At this time, the pulley hinged on the force application handle Do synchronous movement, forcing the ropes wound on it to do traction movement, and the ropes go around the corresponding pulleys and then enter the counterweight unit to drive the counterweight to move up and down. Reciprocating in this way several times can serve the purpose of exercising the arm muscles.

The invention provides a dynamic balancing stand, and belongs to the field of sports equipment. The dynamic balancing stand comprises a frame, small wheels, a balancing stand body, adapter sleeves, a front strut, a rear strut, set screws, transverse bars and longitudinal bars, wherein the front strut and the rear strut are respectively inserted in a front steel tube and a rear steel tube of the frame and are fixed by the adapter sleeves; the longitudinal bars are arranged on the front strut and the rear strut and are fixed by the set screws; the two transverse bars are arranged on the longitudinal bars; the small wheels are arranged on the balancing stand body; and the balancing stand body are placed on a bottom plate of the frame. A user adjusts the positions of the front strut, the rear strut, the longitudinal bars and the transverse bars according to self conditions, enters a square hole surrounded by the longitudinal bars and the transverse bars, supports bar tubes with both hands, and steps on a pedal of the balancing stand body; and the balance force of the user can be exercised along with swinging of the balancing stand.

The invention discloses a pedal pendulum dynamometer, which belongs to the field of sports equipment. The guardrail is inserted into the sleeve of the guardrail support bracket, and the height of the guardrail is adjusted by adjusting the button. The guardrail support bracket is fixed on the top of the outer cover and in front of the pedal. One end of the controller bracket is fixed on the touch screen controller, and the other end is fixed on the front of the outer cover. The bottom support bracket is welded and installed on the four sides of the bottom inside the cover, the upper end of the spring shock absorber is fixed on the lower end of the pedal (4), the lower end of the spring shock absorber is fixed on the bottom support bracket, and the lower end of the pressure sensor is fixed on the side of the bottom support bracket. The pressure sensor is sequentially inserted into the connecting sleeve, the connecting sleeve is inserted into the pressure block, the pressure block is connected to the bottom of the pedal, and the adjustment slide rail is welded and installed on the inner upper end of the outer cover. The invention is simple in structure and low in manufacturing cost, and is a scientific instrument for measuring the kicking power of athletes.

The invention relates to a stepping rehabilitation machine, and belongs to the field of sports equipment. The stepping rehabilitation machine comprises a framework, pedals, hydraulic cylinders, hydraulic rods and a handrail. The handrail (5) is welded on the framework (1), the pedals (2) are installed on the lower part of the framework (1), one end of each hydraulic cylinder (3) is connected with one pedal (2) and is connected with the lower part of a support of the framework (1) through a pin, each hydraulic rod (4) is inserted into one hydraulic cylinder (3), and the other end of each hydraulic cylinder (3) is connected to the upper part of the framework (1). When the stepping rehabilitation machine is used, a user hold the handrail through hands, and steps on the pedals through two feet, and presses the hydraulic cylinders down hard to elongate the hydraulic rods, and two legs alternatively steps, and the effect of physical exercise can be achieved. The stepping rehabilitation machine is simple in structure, small in size, convenient to carry, easy to operate and wide in applicable scope, and is not limited by place and time, and is a body-building rehabilitation appliance being necessary for professional sports teams and hospitals.

The invention belongs to the field of food drink, and particularly relates to black garlic lactic acid bacteria fermented drink which is prepared from the following raw materials in parts by weight: 80-120 parts of black garlic juice, 8-12 parts of milk powder, 2-6 parts of yam flour, 1-4 parts of tremella powder and 2-54 parts of composite lactic acid bacteria. The drink is prepared by mixing andfermenting a composite bacterial strain of lactobacillus casei, lactobacillus paracasei, lactobacillus acidophilus and lactobacillus plantarum. The drink has flavour, fragrance and mouth feel of lactic acid bacteria drink, and also increases the nutrition and the healthcare function of the black garlic. Meanwhile, the invention also provides a preparation method of the drink. The content of allicin is controlled through a process, so that the black garlic lactic acid bacteria fermented drink suitable for various kinds of people to drink is prepared.

The invention discloses arm strength pushing and pressing exercise equipment, and belongs to the field of sports equipment. The arm strength pushing and pressing exercise equipment comprises handles, an arm cushion, a supporting rod, a neck cushion, a bolt, a driving wheel, a bracket, a backrest, a seat, middle pulleys, a rope, a weighing combination and pedals. The backrest is arranged on the upper part of the right side of the bracket, the seat is arranged on the middle part of the right side of the bracket and the pedals are arranged on the lower part of the right side of the bracket; the handles, the arm cushion and the neck cushion are arranged on the supporting rod; the driving wheel and one end of the supporting rod are hinged on the middle part of the bracket, and the supporting rod is fixed to the driving wheel by virtue of the bolt; one end of the rope is fixedly arranged on the driving wheel, and the other end of the rope winds around the middle pulleys, enters the weighing combination and is connected to balancing weights; and the weighing combination is assembled on the left side of the bracket. When the exercise equipment is used, a user sits on the seat, with back leaning on the backrest, two hands firmly holding the handles of the supporting rod, arms leaning on the arm cushion and two legs stepping on the pedals, so that the supporting rod can be rotated downwards as the two hands exert force, at the same time, the driving wheel and the pulleys which are fixedly arranged on exerting parts move simultaneously, the rope wound on the pulley does a traction motion, and the rope winds around the corresponding pulleys, enters the weighing unit and drives the balancing weights to move up and down.

The invention discloses a high-stability compound liquorice oral solution which contains vitamin C. The invention also discloses a preparation method of the high-stability compound liquorice oral solution. Vitamin C added into the compound liquorice oral solution disclosed by the invention can play a role of a stabilizer and takes a very good protection effect of maintaining the pH value of the solution and preventing oxidation of the main active ingredient morphine in a sample so that the product quality is more stable.

The invention discloses a composition for resisting duck plague, freeze-dried powder, and a preparation method and use of the freeze-dried powder, and belongs to the technical field of veterinary feed additives. The composition comprises, by weight, 90-100 parts of a duck plague-resistant yolk antibody and 0.5-2 parts of a duck plague-resistant transfer factor. The freeze-dried powder comprises, by weight, 95-97 parts of the duck plague-resistant yolk antibody, 1-2 parts of the duck plague-resistant transfer factor, 0.2-0.3 parts of an inactivator, 0.01-0.02 parts of an antiseptic and 2.05-3.6 parts of a heat-resistant freeze-dried protective agent, and has the advantages of low preservation conditions, long preservation time, high antibody titer and good biological activity. Through combined use of the duck plague-resistant yolk antibody and the duck plague-resistant transfer factor, the freeze-dried powder has effects of preventing and treating duck plague, improves duck immunity and survival rate, is convenient for use and has a low cost.

The invention discloses a flash rusting liquid medicine applicable to an MSAP process. A banking agent and copper ions in the liquid medicine form a complex to be attached to the surface of copper, sothat base copper between circuits can spray towards the liquid in horizontal spraying equipment; a complex protection film is cracked easily to enable the base copper to be etched and dissolved, while a complex protection film on the side wall of the circuit suffers from relatively low liquid disturbance, so that copper on the side wall can be protected from corrosion; therefore, coating of an etching suppression layer before flash rusting is not needed; the banking agent can control the circuit side wall etching rate to be half of the top etching rate; by virtue of a wetting agent, the copper surface hydrophilicity is improved, so hat the etching liquid can be fully reacted with copper to achieve an etching acceleration effect; by virtue of a stabilizing agent, hydrogen peroxide can be decomposed and high in copper resistance; the flash rusting liquid medicine can process fine circuits with linewidth and line spacing of 45[mu]m or below; and in addition, high reliability is achievedin the circuit etching process, vacuum etching equipment is not needed, and low cost, simple process, and easy management and control are achieved.

The invention discloses an antiviral composition for a feed additive, antiviral freeze-dried powder for a feed additive and a preparation method and use of the antiviral freeze-dried powder, and belongs to the technical field of veterinary feed additives. The antiviral composition comprises, by weight, 90-100 parts of an antiviral yolk antibody and 1-2 parts of an antiviral transfer factor. The freeze-dried powder comprises, by weight, 95-97 parts of the antiviral yolk antibody, 1-2 parts of the antiviral transfer factor, 0.2-0.3 parts of an inactivator, 0.01-0.02 parts of an antiseptic and 2.05-3.6 parts of a heat-resistant freeze-dried protective agent. The freeze-dried powder has the advantages of low preservation conditions, long preservation time, high antibody titer and good biological activity. Through combined use of the antiviral transfer factor and the antiviral yolk antibody, the freeze-dried powder has effects of preventing and treating virosis, improves immunity and a survival rate of livestock and poultry, is convenient for use and has a low cost.

The invention discloses a transfer device for fabricated externally-hung wallboards. The transfer device comprises a bottom plate, a main plate, a limiting plate, servo motors, main rotating wheels, rotating wheel belts and rolling wheels. Fixing rods are fixedly connected to one ends of the rotating wheel belts, supporting rods are movably connected to the two sides of the rolling wheels, first sliding grooves are formed in the upper surface of the main plate, movable plates are movably connected into the first sliding grooves, sliding rails are arranged on the surfaces of the movable plates,and clamping blocks are fixedly connected to the two sides of the sliding rails. The transfer device for the fabricated externally-hung wallboards has the main advantages that when the transfer device for the fabricated externally-hung wallboards is used, the heights of second connecting plates can be controlled through lifting rods, and the wallboards with different heights can be better fixed conveniently; and the transfer device can adapt to the wallboards with different lengths by sliding opposite sliding seats, when the main rotating wheels bundle the rotating wheel belts, the rotating wheel belts bundle to drive the fixing rods to ascend so as to lift the main plate, and therefore the wallboards on the main plate are lifted.

A tractor-type mobile substation The tractor-type mobile substation comprises a box body and a bottom plate, wherein the box body is arranged on the bottom plate; the box body comprises a roof plate and an external wall plate; the bottom plate of the external wall plate is fixedly connected with the bottom plate; the bottom plate comprises two sliding beams; the cross section of the sliding beam is designed as a ship shape; and buffer plates are respectively arranged at two ends, so as to facilitate the movement and suspension of the substation. The cable bridge beneath the auxiliary beam is used for laying cables at the bottom of the substation. The air conditioner can keep the temperature in the substation in a constant range, which improves the safety of the electric equipment in the substation. The sand baffle can prevent the sand from entering the air conditioner, and prolongs the service life of the air conditioner. The booster device makes the indoor air pressure of the substation higher than the external atmospheric pressure, which can effectively prevent the wind sand from entering the inside of the box when people enter or leave the box-type substation in a short period of time.