70results about How to "The production principle is simple" patented technology

The invention discloses a display and communication dual-purpose visible light module. The display and communication dual-purpose visible light module comprises an LED (Light Emitting Diode) dual-purpose module, which is taken as a visible light display light source and a transmitting terminal of a communication system; an LED dual-purpose module display control circuit, which is positioned at one side of the back face of the LED dual-purpose module and is used for controlling an LED array to implement a display function; and an LED dual-purpose module optical communication transmitting terminal circuit, which is positioned at the other side of the back face of the LED dual-purpose module and is used for controlling the LED array to implement the function of an optical communication transmitting terminal. The display and communication dual-purpose visible light module fills up requirements on the multichannel transmitting terminals of a full color array of a light source with the tiny size in the visible light communication system, and provides research and development direction of a small fine-pitch LED high-definition display screen, which integrates communication functions and is highly integrated.

The invention relates to a phosphorus removal water purifying agent and a preparation method thereof. The phosphorus removal water purifying agent is prepared from the following raw materials in parts by weight: 50 to 60 parts of water supply plant aluminium sludge with the particle size of less than 0.15 mm, 35 to 45 parts of sewage plant residual activated sludge with the particle size of less than 0.15 mm and 5 parts of binder clay. The preparation method comprises the following steps: weighing and uniformly mixing the raw materials in proportion; adding water in a mixing process, wherein the wet basis water content is controlled to be between 18 and 25 percent; mixing to obtain a mixture; granulating the mixture into sludge particles with the particle size of 0.5 to 1.5 mm; drying the sludge particles to obtain dried sludge particles, wherein the drying temperature is between 100 and 110 DEG C; and baking the dried sludge particles for 10 to 60 minutes at the temperature of 300 to 900 DEG C to obtain modified sludge for removing phosphorus finally. The damage to the environment caused by a sludge treatment mode is avoided; the waste treatment cost of a water plant is saved; the cost is low; and the operation is simple and environment-friendly.

The invention belongs to the technical field of archive storage and relates to a preparation method for a worm-eating prevention composition for paper archives. The preparation method comprises the following steps: weighing Korea-lily straws, mint leaf straws, chrysanthemum leaf straws, fennel leaf straws and lime powder; cutting plant materials into strips or slices, mixing, and drying in a shady place to obtain a plant mixture; putting the plant mixture into a grinder and grinding to obtain plant powder; putting the plant powder and the lime powder into a container and stirring uniformly to obtain mixed powder; and preparing a cloth bag from nonwoven cloth or crocus cloth, soaking the cloth bag into an ethanol water solution, taking out and drying in air, preparing a square box body according to the size of the cloth bag, putting the mixed powder into the nonwoven cloth bag or the crocus cloth bag, sealing, packaging, and putting a packaged material into the square box in a laying manner to prepare a worm prevention box for the paper archives. The composition is prepared by mixing the pure natural plants with the lime powder, is free from toxic and side effects on a human body, low in processing cost, simple in preparation principle and convenient to use, and achieves safe and environment-friendly effects.

The invention discloses an LED (Light Emitting Diode) surface patterning method. The method comprises the following steps of: mixing a monodispersed microsphere solution and alcohol; and then transferring the monodispersed microsphere to the surface of deionized water by a buffer; uniformly dispersing the monodispersed microsphere and the deionized water; dripping a surfactant to the mixture so as to change the surface tension of the water so that microspheres are intensively arranged in a hexagonal shape in a self-assembled way to form a single-layer microsphere film; transferring the single-layer microsphere film to an LED surface; heating a sample; using a microsphere fixing position as an etching mask to etch an LED surface material; peeling off the rest mask material; and obtaining a nanometer truncated cone array as an LED surface roughened pattern so that the LED light extracting efficiency can be obviously increased. The period, duty cycle and truncated cone unit shape of the truncated cone array pattern can be controlled by changing microsphere diameter, etching power, oxygen flow and etching time; and the LED surface patterning method disclosed by the invention has the advantages of simple design principle, low preparation cost and easiness in operation.

The invention discloses a joint lubricating material and a preparation method thereof. The material is covalent crosslinked O-carboxymethyl chitosan hydrogel, wherein the gelation time is 0.5-10min, the water content is higher than 70%, and the water retention rate is higher than 65%; and the material is prepared by carrying out gelation reaction between O-carboxymethyl chitosan of which the degree of deacetylation is greater than 25% and glutaric dialdehyde. The prepared covalent crosslinked O-carboxymethyl chitosan hydrogel has good biocompatibility, can serve as a joint lubricating agent, is suitable for local injection of joints, and can enable the joints to keep certain capacity and elastic properties within certain time so as to promote cartilage tissue repair.

The invention belongs to the technical field of grain storage, and relates to an insect-expelling bag for grain, wherein the peculiar smell of a combination of natural plants is used for insect prevention and expelling on the grain so as to realize grain storage safety. The main raw materials of the insect-expelling bag for the grain comprise Chinese mugwort leaves and stems, willow leaves, perillaseed leaves and stems, chrysanthemum leaves and stems, dried kelp and dried chili, wherein the weight percentage of the raw materials is 20%-30% of the Chinese mugwort leaves and stems, 20%-30% of the willow leaves, 15%-20% of the perillaseed leaves and stems, 10%-15% of the chrysanthemum leaves and stems, 0%-5% of the dried chili, and 10%-35% of the dried kelp. The insect-expelling bag for the grain is formed by mixing the pure natural plants, thereby exerting no toxic and side effect on the human body, and being low in processing cost, simple in production principle, safe and environmentally friendly.

The invention discloses an experimental water channel device for simulating instantaneous and complete break of a dam. The experimental water channel device for simulating instantaneous and complete break of the dam comprises a water channel, a baffle and a buoyancy twisting device. A support is arranged in the water channel, the baffle is fixed at the bottom of the water channel through a hinge device, the buoyancy twisting device is arranged on the support and comprises bearings, bolts, floating rods and floating balls, the buoyancy twisting device is fixed on the upper portion of the support in the water channel through the bearings, each floating rod and each bearing are fixed together, one end of each floating rod is connected to each bolt through each bearing, and the other end of each floating rod is connected to each floating ball. In the initial phase, the floating balls are vertically downward, and the baffle is perpendicularly fixed in the water channel. When the water level in front of the dam rises, the floating balls rise in a floating mode, twist the floating rods so as to twist the bolts, when the water level rises to a certain degree, the bolts are twisted to exceed the boundary of the baffle, and the baffle is instantaneously pressed down due to pressure of a water body in front of the dam. The experimental water channel device for simulating instantaneous and complete break of the dam avoids errors caused by human factors to experiment engineering, and improves accuracy and repeatability of an instantaneously complete dam break experiment.

The invention belongs to the technical field of grains storage and relates to a method for manufacturing grain insect expelling bags. The method comprises weighting dry argy wormwood leaf stems, willow leaves, perillaseed leaf stems, chrysanthemum leaf stems, dry red peppers and dry kelp, cutting the plant materials into sheet geometrical shapes, mixing and drying the materials to obtain a plant mixture, smashing the plant mixture, and stirring the plant mixture in a container to obtain a plant mixed powder; weighing the dry red pepper according to the plant mixed powder material weight ratio, adding water which is 5 times of the weight of the dry red peppers and heating and boiling the mixture, keeping the mixture away from fire and cooling the mixture to the room temperature, submerging non-woven bags or gauze bags in dry red pepper water for half an hour, taking out and drying the non-woven bags or the gauze bags, filling the material plant mixed powder in the non-woven bags or the gauze bags submerged in the dry red pepper water, and sealing the bags to obtain the grain insect expelling bags. According to the method, the design principle is simple, the bags are made of pure natural plant mixtures and have no toxic and side effects on human bodies, the manufacture cost is low, the manufacture principle is simple, and the method is safe and environmentally friendly.

The invention belongs to the technical field of archive storage and relates to a worm-eating prevention composition for paper archives. The purposes of preventing moisture and dispelling worms for the paper archives are achieved by peculiar taste sent from a mixture of natural plants and lime powder. The composition comprises the following raw materials in percentage by weight: natural plants including 20%-30% of Korea-lily straws, 10%-20% of mint leaf straws, 5%-10% of chrysanthemum leaf straws and 10%-20% of fennel leaf straws, and 30%-50% of lime powder. The composition is free from toxic and side effects on a human body, low in processing cost, simple in preparation principle and convenient to use, and achieves safe and environment-friendly effects.

The invention relates to a preparation method of a PVA-SA composite immobilized carrier for degrading microorganisms. The method is characterized in that the method comprises the following steps: a) mixing a bacterial suspension of degrading microorganisms and a sterilized composite material solution under aseptic conditions; wherein the composite material solution is composed of 95 to 105 g / L ofpolyvinyl alcohol, 9 to 11 g / L of sodium alginate, 28 to 32 g / L of SiO2, 4.5 to 5.5 g / L of CaCO3, 5 to 7 g / L of activated carbon and balance of deionized water; and b) in the sterile environment, dropping the composite material solution homogeneously mixed with the bacterial suspension obtained in step 1) into a cross-linking agent, and after hardening treatment, obtaining the immobilized carrier,wherein the cross-linking agent is obtained by dissolving calcium chloride solid with a mass fraction of 1.8 to 2.2% in a saturated boric acid solution and adjusting the pH to 6.1 to 6.3 with a sodium hydroxide solution.

The invention belongs to the technical field of the preparation of a lithium ion battery, and relates to a method for in-situ assembling of the lithium ion battery by utilizing a single nano wire or a single nano tube. By selecting a transmission electron microscope device, the method comprises the following steps of: firstly adhering metal lithium (Li) or LiCoO2 particles onto an AFM probe of an in-situ sample table of a transmission electron microscope respectively to form a cathode of the lithium ion battery, then dropping the liquid with metal oxide nano wires on the metal probe of the in-situ sample table of the transmission electron microscope with an oxide layer formed on the metal particles as lithium ion battery electrolyte to ensure that the metal oxide nano wires are adhered onto a sharp end of the metal probe to be used as an anode of the lithium ion battery, and driving a single metal oxide nano wire to contact liquid or solid electrolyte by adopting piezoelectric ceramic so as to realize the in-situ assembling of the lithium ion battery. The in-situ assembling method is novel in the designing concept, simple in principle, low in preparation cost, environment-friendly in production environment and wide in practicability.

The invention relates to an intelligent temperature regulating polyurethane energy-saving plate, comprising two colour steel plates and a polyurethane composite board which is arranged between the two colour steel plates, is bonded with the colour steel plates and is doped with organic energy storage phase change material and nano processing aid, wherein the organic energy storage phase change material accounts for 5-20% of the weight of the polyurethane composite board, and the nano processing aid accounts for 0.5-2% of the weight of the polyurethane composite board. The intelligent temperature regulating polyurethane energy-saving plate contains the energy storage phase change material and has good temperature regulating and heat insulating effects, when ambient temperature is higher than a set temperature, the energy storage phase change material absorbs heat and prevents the temperature from rising, and when the ambient temperature is lower than the set temperature, the energy storage phase change material releases heat and prevents the temperature from decreasing, thus intelligent temperature regulation is realized by virtue of the effect of the energy storage phase change material. Besides, the invention also relates to a manufacturing method of the intelligent temperature regulating polyurethane energy-saving plate.

The invention discloses a preparation method of immobilized microorganisms embedded with aerogel, and belongs to the fields of immobilized microorganism technology and environmental functional composite material preparation. The preparation method comprises the following steps: proportionally mixing monomer hydroxyethyl methacrylate, N-methylol acrylamide, polyacrylamide and diisodecyl adipate, and performing a series of treatment to prepare aerogel; and performing mixed culture on the prepared aerogel and bacterial liquid proportionally, uniformly mixing the bacterium-loaded aerogel with themixed liquid, then transferring the aerogel to a saturated calcium chloride solution to be crosslinked and hardened, and then cleaning the surfaces of immobilized spheres with sterile water to prepareimmobilized spheres embedded with the aerogel. The prepared immobilized microorganism spheres embedded with the aerogel have the advantages of large specific surface area, good mass transfer performance, good stability, high mechanical strength, low cost and the like and have wide application prospects in the aspect of environmental pollution remediation.

The invention relates to a silicon-based photoelectrode and a preparation method and application thereof. The silicon-based photoelectrode includes a Si layer, a passivation layer, a buffer layer anda catalytic protection layer, wherein the passivation layer, the buffer layer and the catalytic protection layer are sequentially disposed on the surface of the Si layer. The passivation layer, the buffer layer and the catalytic protection layer in the silicon-based photoelectrode are all made of dense film materials, wherein the catalytic protection layer has high electrocatalytic activity and can effectively reduce the reaction overpotential and maintain high stability in a solution; the passivation layer on the surface of the Si layer can reduce the surface state of Si, reduce Fermi level pinning and inhibit the recombination of electrons and holes on the silicon surface; the buffer layer can protect the passivation layer from damage in the process of preparing the catalytic protectionlayer, and the photoelectric property of the photoelectrode is improved from two aspects including thermodynamics and kinetics.

The invention discloses natural vegetable lip balm. The natural vegetable lip balm comprises the following components: natural vegetable oil, animal oil and fat, natural honey and vitamins, wherein the natural vegetable oil is olive oil, grape seed oil, avocado oil, collagen and almond oil; the animal oil and fat is horse oil and lanolin. The natural vegetable lip balm adopts a purely natural formula, has no side effects on human bodies, has a good repair function, has unexpected effects on dry and chapped skins and lips in the cold winter, and has the functions of preventing pigmentation, reducing harms of ultraviolet rays, delaying skin aging and maintaining the health of lip skins.

The invention discloses a damper based on a paper-folding rebounding mechanism. The damper comprises a piston cylinder, a piston rod and paper-folding structures, wherein the piston rod is arranged ona working cylinder; the paper-folding structures are fixedly connected to the two surfaces of a disc of the piston rod; the other end of each paper-folding structure is fixedly connected with the bottom surface of the piston cylinder; the piston cylinder is filled with viscous fluid; the disc of the piston rod is provided with a plurality of damping holes; and when the piston rod is subjected toan external load, the paper-folding structures are compressed or stretched along a movement direction of the piston rod, and the viscous fluid in the cavity of the piston cylinder on the compressed side enters the other side through the damping holes, thereby achieving a damping effect. The damper has the characteristics of novel, small and compact structure, easiness and convenience in manufacturing, and relatively low cost.

The invention discloses an auxiliary tool and method for hoisting a laminated plate. The auxiliary tool comprises a supporting frame, a connecting structure and a hoisting rope; the supporting frame is used for supporting the laminated plate; the connecting structure is used for connecting the supporting frame and the hoisting rope; the hoisting rope is used for hoisting the supporting frame whenhoisting; the supporting surface of the supporting frame is a plane, and before hoisting, the laminated plate needs to be placed on the supporting plane of the supporting frame smoothly; in the hoisting process, it is guaranteed that the inclined angle of the supporting surface is not greater than 10 degrees through the effects of the connecting structure and the hoisting rope; a hoisting point position is arranged on the supporting frame, the connecting structure is fixed to the hoisting point position, and by arranging the hoisting point position, it is guaranteed that the supporting frame is kept to be balanced through the effect of each hoisting point in the hoisting process. According to the auxiliary tool, the manufacturing principle is simple, and operation is convenient; the hoisting tool is safe and reliable when used, the laminated plate cannot be broken in the hoisting process, and the hoisting quality of the laminated plate is effectively improved; the construction period is saved, and wide application values in similar construction technologies are achieved.

The invention discloses an experimental water channel device for simulating instantaneous and complete break of a dam. The experimental water channel device for simulating instantaneous and complete break of the dam comprises a water channel, a baffle and a buoyancy twisting device. A support is arranged in the water channel, the baffle is fixed at the bottom of the water channel through a hinge device, the buoyancy twisting device is arranged on the support and comprises bearings, bolts, floating rods and floating balls, the buoyancy twisting device is fixed on the upper portion of the support in the water channel through the bearings, each floating rod and each bearing are fixed together, one end of each floating rod is connected to each bolt through each bearing, and the other end of each floating rod is connected to each floating ball. In the initial phase, the floating balls are vertically downward, and the baffle is perpendicularly fixed in the water channel. When the water level in front of the dam rises, the floating balls rise in a floating mode, twist the floating rods so as to twist the bolts, when the water level rises to a certain degree, the bolts are twisted to exceed the boundary of the baffle, and the baffle is instantaneously pressed down due to pressure of a water body in front of the dam. The experimental water channel device for simulating instantaneous and complete break of the dam avoids errors caused by human factors to experiment engineering, and improves accuracy and repeatability of an instantaneously complete dam break experiment.

The invention discloses a polypropylene composite material for supercritical carbon dioxide foaming and a preparation method of the polypropylene composite material. The polypropylene composite material is prepared from, by weight, 80-90 parts of polypropylene, 1-10 parts of a mesoporous nucleating agent and 1-10 parts of a synergistic nucleating agent. Due to a specific pore structure, mesoporous silica serves as a heterogeneous nucleating agent for polypropylene; by taking advantages of the pore structure and a high specific surface area, a silane coupling agent is grafted to pores and the surface of mesoporous silica to realize polypropylene modification; by enrichment of initiator azodiisobutyronitrile on the surface of mesoporous silica, a heterogeneous foaming agent is achieved after CuBr catalyst modification; the pore structure of the mesoporous silica serving as a polypropylene foaming agent forms an 'air void' structure along with polymers, and consequently nucleating energy barriers can be reduced, and heterogeneous nucleating efficiency is improved effectively; due to adoption of the synergistic nucleating agent, foaming density and efficiency of the common polypropylene foaming material are further improved.

A visible light communication device based on LED projection comprises a light source module, a primary light source outer cover, an optical element device and a secondary light source outer cover. The light source module is used for emitting LED light, and is controlled by a drive circuit to achieve the illumination and communication functions at the same time. The light source module is fixed to the inner wall of the rear end of the primary light source outer cover, and the LED light convergence function is achieved. The optical element device is fixed to the front end of the primary light source outer cover, and is used for controlling the definition and size of a projection image. The secondary light source outer cover is fixed to the front end of the optical element device, and is adopted as an LED projection and illumination distance and range adjusting component. The visible light communication device has the advantages of being relatively simple in module structure, relatively small in size and large in application area and saving cost.

The invention discloses a carbonate / silicon oxide compound gel adsorbent and a preparation method thereof, which belong to the technical field of preparation of chemical adsorbents. The method comprises the following steps of: adding carbonate at a condensation polymerization reaction phase according to the process characteristic of a porous adsorbent prepared with a sol-gel method for accelerating a reaction and introducing active ingredients specific to a target pollutant, i.e., SO2; and under the action of an acid catalyst, performing a hydrolysis reaction on a silicon source precursor to generate silicon oxide sol, adding a carbonate solution into the sol, stirring for gelling, aging, and drying under the normal pressure to obtain carbonate / SiO2 compound dry gel which can be taken as a chemical adsorbent for removing harmful gases such as SO2 and H2S. The preparation method has the advantages of wide source, low cost, simple process, easiness for operating, no need of baking at a high temperature and low energy consumption; and the prepared compound gel adsorbent has the advantages of high specific surface area, uniform dispersion of active ingredients and high removing efficiency on harmful gases.

The invention belongs to the field of materials and environmental engineering, and relates to hydrophobic and oleophilic surface modified enteromorpha and a preparation method as well as application thereof. A coarse hydrophobic membrane layer is attached to the surface of enteromorpha; the coarse hydrophobic membrane layer attached to the surface is formed by soaking dry and desalted enteromorpha into organic phase liquid and then drying, and the surface modified enteromorpha is obtained by attaching the coarse hydrophobic membrane layer to the surface of the enteromorpha. The coarse hydrophobic membrane layer is prepared on the surface of the enteromorpha by adopting a soaking method in a hexane-organosilane solution, and an enteromorpha-organosilane fiber system with super lipophilicity and high hydrophobicity is formed and is used for collecting and treating an oil phase floating on the surface of seawater in an ocean oil spill accident.

The invention relates to an alpha-Fe2O3 / Au nanometer-circular-truncated-cone-array photoelectrode and a preparing method and application thereof. The alpha-Fe2O3 / Au nanometer-circular-truncated-cone-array photoelectrode is composed of a quartz nanometer-circular-truncated-cone-array substrate, an ITO adhesion layer, an Au layer and an alpha-Fe2O3 layer which are sequentially arranged. The preparing method includes the steps that a nanometer-circular-truncated-cone-array pattern is prepared on the surface of quartz, and the quartz nanometer-circular-truncated-cone-array substrate is obtained; the ITO layer, the Au layer and the Fe layer are sequentially grown on the obtained substrate, then annealing treatment is conducted to form a photoelectric oxidation layer, and the photoelectrode of ananometer-circular-truncated-cone-array structure is obtained. According to the alpha-Fe2O3 / Au nanometer-circular-truncated-cone-array photoelectrode and the preparing method and application thereof,by introducing the nanometer-circular-truncated-cone-array structure, a photo-anode material of a high-order nanometer-circular-truncated-cone-array structure is obtained, and the photocatalysis activity of the electrode is remarkably improved. Meanwhile, the preparing method is simple, high in controllability and low in cost, the production cost is greatly reduced, and good application prospectsare achieved.

The invention discloses a gate momentarily opening device of a dam break experiment. The gate momentarily opening device of the dam break experiment comprises a rotary gate, a portal frame, a jackingand pulling device and a floating type triggering device. The rotary gate is connected with the portal frame through a fixed rotary shaft, and a limiting device is installed on the upper part of the portal frame and used for fixing the rotary gate and reducing thrust of the jacking and pulling device. The jacking and pulling device is fixed to a fixed frame through a hinged device, and the floating type triggering device is arranged on the lower part of the jacking and pulling device and used for triggering a strong spring in the jacking and pulling device. The momentary gate opening device ofthe dam break experiment has the beneficial effects that the gate is opened by using flow pressure and tensile force of the jacking and pulling device, and the effect of gate momentarily opening under all set water levels is realized; a starting mode of the rotary gate is controlled by the floating type triggering device to avoid errors caused by human factors to experiment engineering, the accuracy and repeatability of the dam break experiment are improved, the manufacture principle is simple, the operation is convenient, and the practicability is high.

An electric cockroach killer comprises a casing, a handle, a sucker, a connection flexible pipe, a centrifugal machine, a vacuum pump, a drying chamber and a collection bag. The handle is a hollow cavity, and two ends of the handle are connected with the sucker and the connection flexible pipe respectively. The casing comprises an air inlet and an air outlet, and one end of the connection flexible pipe is connected with the air inlet. The centrifugal machine, the vacuum pump and the drying chamber are sequentially arranged in the casing in the direction from the air inlet to the air outlet of the casing. The collection bag is arranged in the drying chamber. The electric cockroach killer adopts a pure physical prevention mechanism, and is environmentally friendly, free of chemical pollution, simple, high in efficiency, capable of killing imagoes, larva and even egg cases of cockroaches, simple in manufacture principle and easy to produce and operate.

The invention discloses an experimental device for simulating the impact of the upstream dam break on a downstream dam. The experimental device comprises a water tank, an upstream arch dam model baffle and a downstream arch dam model baffle. The upstream arch dam model baffle and the downstream arch dam model baffle are arranged in the water tank. At least two levels of storage capacities are set in the water tank on the upstream position of the upstream arch dam model baffle. The adjacent two levels of storage capacities are partitioned by partitions which can adjust the capacity of the storage capacities. A water injection device for injecting water into the water tank is arranged above the water tank. A monitoring instrument for obtaining the flood routing characteristic of the upstream arch dam model baffle and the characteristics of the impact and destroy of the flood on the downstream position is arranged on the downstream arch dam mold baffle. The experimental device is simple in structure, the experimental scheme is convenient to adjust and optimize, the operability and practicability are high, and the experimental device can be widely applied to dam break and cascade dam break model experiments.

The invention discloses a construction method for pile head secondary forming waterproof construction, and relates to the technical field of waterproof construction of a cast-in-place concrete pile head. The construction method comprises the steps of breaking a pile head; assembling a pile head secondary forming tool type mold; arranging the mold; carrying out pile head secondary forming and cushion layer concrete pouring; dismantling the mold; arranging expansion water stop strips; sealing waterproof mortar; carrying out bottom plate waterproof construction; brushing cement-based capillary crystallization on to the pile head; and arranging pile head exposed steel bars and a plastic sleeve factice crack pouring tool type mold and the like. One pile head secondary forming tool type mold andthe plastic factice crack pouring tool type mold are designed in a targeted mode, through the implantation of the technical scheme, the technical problem that the leakage risk exists at waterproof cross positions between the pile head and a bottom plate can be effectively solved, so that the leakage risk and hidden danger existing in pile head waterproof construction are prevented, the secondaryrepairing cost caused by leakage of the waterproof pile head is reduced, resources are saved, and the secondary forming construction efficiency of the pile head and the waterproof construction qualityof the pile head are improved.

The invention discloses large-scale interface shearing equipment and an implementation method thereof. The interface shearing equipment is formed by assembling a normal pressure loading system, a horizontal servo push-pull system, a platform device, an upper shearing box and a lower shearing box. In the testing process, a material with higher strength is put into the lower shear box, a material with lower strength is put into the upper shear box, then the air compressor is started, a valve of the air pressure cylinder is adjusted to control a normal pressure value, and after the normal pressure value is stable, the horizontal servo thrust system is further started to apply a horizontal thrust to the upper shear box so that interface shearing is realized. In the whole shearing process, whole-process data acquisition of horizontal servo thrust, horizontal displacement and normal pressure is achieved through an equipment control system, and an interface shearing characteristic curve between different materials is obtained. The equipment is large in shearing contact area, has a normal pressure stabilizing function and a vertical pressure data real-time acquisition function, can more accurately obtain interface shearing characteristics of different materials, and has important popularization and application values.

The present invention discloses a cat cereal-free pastille formula and a preparation method thereof. The cat cereal-free pastille formula is prepared from the following raw materials in parts by weight: 1-20 parts of chicken powder, 1-16 parts of cooked flaxseed powder, 0.5-10 parts of fructo-oligosaccharide syrup, 0.2-10 parts of beef powder, 1-25 parts of lecithin, 1-30 parts of potato powder, 1-18 parts of sweet potato powder and 1-20 parts of pea meal. The cat cereal-free pastille formula has a good preparation mixing effect, high efficiency and balanced nutrition, is rich in high protein, beneficial to healthy growth of cats and worthy of popularization, does not cause allergy to cats, and has a simple preparation principle, high preparation efficiency, easy operation and high functionality.

A construction operation platform for prefabricating a box girder comprises a platform body and two supporting units, and is characterized in that the platform body comprises a steel tube frame and a grid steel plate, the steel tube frame is a rectangular steel tube support, the rectangular steel tube support is provided with two parallel steel tubes serving as long sides, each supporting unit comprises a vertical support and a ladder stand, each vertical support is a #-shaped steel tube frame, and the two ends of the platform body frame are erected on the vertical supports correspondingly to form a rigid component. The construction operation platform for prefabricating the box girder has the advantages that the platform structure is simple, the manufacturing principle is simple, practicability is high, operation of the device is easy, the installation speed is high, the construction efficiency is high, and safe and rapid passing of constructors and construction operation are facilitated.