297results about How to "Low pollution rate" patented technology

The invention belongs to the technical field of plant tissue culture, and particularly relates to a tissue culture and rapid propagation culture medium and a tissue culture and rapid propagation method for culturing Shaniodendron subaequalis. The invention provides a tissue culture and rapid propagation culture medium and a tissue culture and rapid propagation method for culturing Shaniodendron subaequalis. Kinetin KT (Kinetin) in the tissue culture and rapid propagation culture medium provided by the invention can promote the generation of buds and the growth of adventitious buds. 6-BA is 6-benayl aminopurine and is used for promoting the growth of buds; tDZ is thiabendazole, and growth and development of buds are promoted. Under the combined action of KT, 6-BA and TDZ, the bud induction rate and the bud multiplication coefficient of the stem with the bud are improved. The invention further provides a tissue culture and rapid propagation method of the Shaniodendron subaequalis, stem segments subjected to induction culture are low in pollution rate, high in survival rate and low in browning rate; the lateral bud induction rate of the stem section is as high as 91%, and the multiplication coefficient, the rooting rate and the transplanting survival rate are high.

The invention provides a method for sterile sowing and efficient propagation of cymbidium faberi. The method comprises the following steps: pretreatment of cymbidium faberi seeds, sterile germination of the cymbidium faberi seeds, protocorm proliferation, differentiation, seedling strengthening and acclimatization and transplantation. The pretreatment comprises the steps of refrigerating hybrid seeds of cymbidium orchid at 4 DEG C, performing secondary disinfection with sodium hypochlorite, performing dark culture for 10-30 days after sowing, and then performing light culture, and the germination culture medium is prepared by taking 1 / 4 MS as a basic culture medium and adding 100-200ml / L of coconut water, 0.5-1.0 mg / L of 6-benayl aminopurine, 0.1-0.5 mg / L of naphthylacetic acid, 0.5-2.0 g / L of peptone and 0.5-1.0 g / L of activated carbon. According to the method, the seed germination rate can be effectively increased, the 60d seed germination rate reaches up to 85%, the pollution rate is reduced to 5% or below, 50.0 g / L inositol, 2.0 mg / L glycine and 2.0 mg / L nicotinic acid are added into a differentiation culture formula, the differentiation rate can be effectively increased, the leaf bud differentiation rate reaches up to 90%, meanwhile, rooting can be induced, the growth time of cymbidium faberi from seeds to seedlings is greatly shortened, a large number of high-quality seedlings can be obtained within a short time, and the method is suitable for large-scale popularization and application. Technical data are accumulated for cymbidium resource protection and new variety cultivation.

According to the carrier provided by the invention, the parts are simple in structure, a universal mechanical manufacturing process is adopted, and the cost of the carrier can be greatly reduced; the carrying platform is light in weight, so that the driving load and energy consumption can be effectively reduced; a traditional clamping jaw fixing mode is replaced, the application range of the carrying table to the cleaning liquid is expanded, and the maintenance frequency of a client side is reduced; the method can be suitable for wafer products with large warping degree, and the phenomena of vacuum leakage and fragments are effectively avoided.

The invention relates to a marinated meat production conveying line, and belongs to the technical field of marinated food production equipment.The marinated meat production conveying line comprises a rack and a conveying line body arranged on the rack, the rack is provided with a removing assembly, the removing assembly comprises a removing roller, a fixing frame and a storage box, and the storage box is arranged on the rack and located below the conveying line body; the fixing frame is arranged in the storage box, the removing roller is installed on the fixing frame, and the outer wall of the removing roller abuts against the lower surface of the conveying line body. The method has the effect of improving the quality of the marinated meat.

The pre-filled microneedle injector comprises a needle cylinder, a piston and a needle head, the needle cylinder is of a hollow structure, a limiting ring is arranged at the open end of the needle cylinder, the piston extends into the needle cylinder from one side of the limiting ring and can move up and down in the needle cylinder, a rubber ring is arranged at the bottom end of the piston, and a pushing handle is arranged at the top of the piston; the needle head is fixed to the side, away from the limiting ring, of the needle cylinder and comprises a connecting part and needle tubes, the connecting part extends out of the needle cylinder, and at least one needle tube is embedded into the connecting part in an in-line mode. The syringe is used for injection of biological macromolecular medicine preparations and complex preparations, especially mRNA vaccines or medicine preparations needing to be pre-filled for micro-injection, the hydrophilic film on the inner wall of the needle cylinder enables biological macromolecular medicines such as the mRNA vaccines or the medicine preparations to be stably stored, and the injection efficiency is improved. And through the limiting buckle, the pre-filled microneedle injector cannot leak in the transportation process or the storage process.

The invention discloses a binding-free grafting method suitable for pear trees, which comprises the following steps: a rootstock cutting method: cutting the old skin of a rootstock in the middle or slightly deviated position of the rootstock, and punching to a cambium by using a puncher; a scion cutting method: selecting new shoots for wrapping with wax liquid, and preserving moisture for storage; cutting a horse-ear-shaped large inclined surface at the base bud, reserving the bud, and cutting the lower part of the scion into a wedge surface; an inserting opening cutting method: peeling from a punching position in a manner of obliquely cutting a cortex in a triangular shape to a half scion thickness of a xylem at an interface; a forming layer of the scion is aligned with a forming layer of the stock, and the scion is inserted to the back surface of the stock; and sealing the wound: carrying out full-closed binding by using a polyurethane foaming agent. By standardizing the size of the wound of the rootstock, omitting a grafting plastic film and replacing the wound with the polyurethane foaming agent, the method has the advantages of saving labor and materials, being good in heat preservation effect and high in grafting survival rate, avoiding the problem of excessive wound caused by excessive root pressure, omitting a plastic film disassembling procedure, reducing the risk of infection of the tree body, and enabling the grafted tree to grow and bear fruits well.

The utility model discloses a dialysis catheter connector with a protective sleeve, relates to the technical field of peritoneal dialysis, and solves the problems that in the prior art, a dialysis catheter connector is bound by gauze and is fixed by adhesive tape, so that the dialysis catheter connector is easy to slip, and the operation process is complicated, time-consuming and labor-consuming. The protective sleeve comprises a connector body and a protective sleeve body, the connector body comprises an indwelling tube end connector and an external tube end connector, the end of the indwelling tube end connector and the end of the external tube end connector are communicated with an indwelling catheter and an external catheter respectively, the indwelling tube end connector is detachably connected with the external tube end connector, and the protective sleeve body comprises a silicon rubber sleeve. The silica gel sleeve is arranged on the indwelling tube end connector in a sleeved mode, the end, away from the external tube end connector, of the silica gel sleeve is connected with the indwelling tube end connector in a sealed mode, and the other end of the silica gel sleeve is connected with a sealing assembly, detachably connected with the external tube end connector through the sealing assembly and tightened in a sealed mode. The sealing device is simple to operate, convenient to use, good in sealing performance, stable in connection and beneficial to use.

The present invention belongs to the technical field of hospital construction, and specifically refers to a dust removal machine for rammed earth construction of hospital construction, including a fixed ring plate, a cleaning ring plate, a rammed earth port, a rotary dust collection mechanism and an increased dust suppression mechanism, wherein the cleaning ring plate is rotatably arranged on the outside of the fixed ring plate, the rammed earth port is arranged on the inner wall of the fixed ring plate, the rotary dust collection mechanism is arranged on the side wall of the cleaning ring plate, the increased dust suppression mechanism is arranged on the upper wall of the fixed ring plate, and the rotary dust collection mechanism includes a driving mechanism, a partitioning mechanism, a folding mechanism and a locking mechanism. The dust removal machine for rammed earth construction of hospital construction provided by the present invention can suppress the dust generated by the loosening of the surface layer of soil around the rammed earth construction due to mechanical vibration, reduce the generation of dust during the ramming operation, and can compact the loosened soil that has been changed into dust back to the surface layer of the soil.

The invention discloses a method for establishing a cudrania tricuspidata stem efficient regeneration system, and belongs to the technical field of plant tissue culture. The establishment method comprises the following steps: cutting healthy Cudrania tricuspidata current-year twigs into stem segments, reserving a plump bud on each stem segment, carrying out preliminary disinfection, soaking in a disinfectant, carrying out ultrasonic treatment and disinfection, using the disinfected bud as an explant, and carrying out bud induction culture, cluster bud enrichment culture and rooting culture to obtain Cudrania tricuspidata in-vitro regenerated seedlings. By screening the components of the culture medium in each stage and optimizing the in-vitro rapid propagation process of the cudrania tricuspidata, the propagation efficiency of a rapid propagation system is improved, a large number of high-quality seedlings can be produced within a short period of time, the market demand is met, and rapid development of industrialization of the cudrania tricuspidata is promoted.

The utility model discloses a coal picker which comprises a machine base, a vibration spring is arranged at the top of the machine base, the vibration spring is fixed to the side edge of a screening box, the rear end of the screening box is fixedly connected with a fixing base, and a vibration motor is arranged in the fixing base. The crushing flow guide device is fixedly mounted on the side edge of the crushing box; and the dust suction device is fixedly mounted at the top of the screening box. Through the arrangement of the crushing flow guide device and the dust collection device, the servo motor rotates to drive the first stirring shaft to rotate, the first stirring shaft drives the crushing cutter to crush raw coal, the driving wheel drives the driven wheel to rotate through the belt, and the driven wheel drives a plurality of flow guide plates on the second stirring shaft to rotate; the guide plate is arranged on the feeding port, so that the crushed coal briquettes are guided, the coal briquettes are prevented from being accumulated at the feeding port, magnetic attraction blocks on the guide plate can attract magnetic impurities on the coal briquettes, the quality of the coal briquettes is improved, meanwhile, the guide plate rotates to uniformly scatter the coal briquettes, and the situation that the coal briquettes are accumulated and cannot be fully screened during screening is prevented.

The invention discloses a tissue culture and rapid propagation method for a fig male tree germplasm material, and belongs to the technical field of plant tissue culture and rapid propagation. The specific method comprises the following steps: (1) obtaining and disinfecting an explant; (2) primary culture of buds; (3) subculture multiplication of buds; (3) rooting culture; and (4) hardening seedlings and transplanting. According to the method, the optimal culture medium for tissue culture and rapid propagation of the fig male tree is obtained by combining different hormones and adjusting different hormone concentration ratios, and the differentiation and proliferation of buds of the fig male tree and the growth and rooting rate of seedlings are remarkably improved. In the explant treatment, tebuconazole carbendazim, 75% alcohol and sodium hypochlorite are adopted for the first time, so that the use of a highly toxic reagent mercury bichloride is avoided; cefotaxime sodium is added into a primary culture medium, so that the pollution rate of explants is reduced; the method is simple to operate, time-saving, labor-saving, safe and environment-friendly, and improves the inoculation quality and efficiency. The method is not limited by seasons, enlarges the excellent male tree population of the figs in a short time, and lays a foundation for cultivating new germplasm of the figs.

The invention discloses a tissue preservation solution in organoid construction as well as a preparation method and application thereof. The tissue preservation solution is prepared from the following components: an Advanced DMEM / F12 culture medium, a mycillin / amphotericin B three-antibody mother solution, Glutamax-1, an HEPES buffer solution and a Y-27632 mother solution. The preparation method of the tissue preserving fluid comprises the following steps: adding an Advanced DMEM / F12 culture medium into a centrifugal tube on a super clean bench; then sequentially adding a mycillin / amphotericin B three-antibody mother solution, Glutamax-1, an HEPES buffer solution and Y-27632, and uniformly mixing, so as to obtain the tissue preservation solution. After uniformly mixing, filtering and sterilizing by using a disposable needle type filter, and collecting the preserving fluid into a centrifugal tube; the invention also discloses an application of the tissue preserving fluid in organoid construction. According to the tissue preserving fluid obtained by the invention, in the transportation process, the cell viability in the tissue is improved, the cell damage is reduced, and the success rate of primary cell adherent culture and organoid construction is increased.

The invention discloses a pen-shaped artificial pollinator for pepper breeding and a pollination method.The pen-shaped artificial pollinator comprises a containing pipe, the closed end of the containing pipe is movably sleeved with a pipe cap, an elastic air bag is connected between the pipe cap and the closed end, the open end of the containing pipe is hinged to a closed end plate, and an elastic pulling piece is connected between the closed end plate and the inner wall of the open end; a pushing sleeve is arranged in the opening end in a sliding mode, the pushing sleeve is connected with a first sliding rod, and the first sliding rod is arranged in the first sliding hole of the containing pipe in a sliding mode; the writing brush head is arranged in the containing pipe in a sliding mode, a second sliding rod of the writing brush head is arranged in a second sliding hole of the containing pipe in a sliding mode, one end of a linkage rod of the pipe cap is connected to the first sliding rod, and the middle of the linkage rod is connected with a writing brush spitting block; the protective cover comprises a plurality of arc-shaped petals and an isolation bag, one ends of the arc-shaped petals are connected to the outer wall of the open end through hinge shafts, torsional springs are installed on the hinge shafts, and the protective cover is detachably sleeved with the isolation bag. The method solves the problems that the existing small pepper pollination process is tedious and is easily polluted by pollen of other plants.

The invention discloses a process door moving device and semiconductor process equipment, and relates to the technical field of semiconductor preparation, the disclosed process door moving device comprises a box body and a moving mechanism, the moving mechanism comprises a supporting part and a moving part, the supporting part is arranged in the box body, the moving part is in sliding connection with the supporting part, a notch is formed in the side wall of the box body, and the notch is arranged in the box body. The moving part can move in the length extending direction of the notch so as to drive a to-be-conveyed component outside the box body to execute corresponding actions. Through the arrangement of the box body, pollutants such as friction scraps and lubricating grease volatile particles generated in the operation process of the moving mechanism can be restrained in the box body to a certain extent, so that the probability that the pollutants are diffused to the outside of the box body and pollute the area where the wafer is located is reduced.

The present invention discloses a magnetic levitation centrifugal compressor, which belongs to the field of compressor equipment, including a magnetic levitation motor assembly, wherein an interpolar cooling device is connected between a primary volute and a secondary volute at both ends of the magnetic levitation motor assembly through a first air pipe and a second air pipe; the air inlet diameter of the first air pipe is the same as the air outlet diameter of the second air pipe. The air inlet diameter of the first air pipe and the air outlet diameter of the second air pipe are the same or as close as possible to minimize noise reduction, and the interpolar cooling device of the first air pipe and the second air pipe can cool the air compressed for the first time, which can effectively reduce the temperature of the compressed air, thereby reducing the pressure of the gas flowing into the second air pipe, and can also effectively reduce the pressure difference between the intake air pressure and the exhaust air pressure, which is beneficial to noise reduction. In addition, the present invention has lower energy consumption, high air filtration accuracy, and a balanced structure of the internal rotating shaft of the compressor, which can reach a higher rotation speed, and better gas compression effect and product quality.

The invention discloses a TBC battery preparation method and a silicon wafer laser grooving device, which relates to the field of photovoltaic technology and aims to solve the technical problems of low yield and high cost of TBC battery production, including selecting an N-type single crystal silicon substrate, double-sided polishing, grooving, using ink to cover the boron doped area of ​​the silicon wafer after S04 treatment, and performing SiO2 treatment on the back of the silicon wafer after S05 treatment. 2 Deposition of tunneling layer and phosphorus-doped amorphous silicon layer, removal of SiO generated on the front and edge 2 , phosphorus diffusion treatment, removal of SiO on the edge and back 2 Protective layer, double-sided Al deposition 2 O 3 The present invention postpones the front texturing process backward, reduces the probability of front contamination, improves the yield, reduces the cost, and uses the PSG layer generated when the back side is doped with phosphorus as a barrier layer for front texturing. At the same time, by using an ink mask for shielding, the coating and stripping processes of the silicon nitride protective layer are reduced, the production cost is reduced, and the use of HF acid is reduced, thereby improving safety.

The utility model discloses a disc type intermittent immersion plant bioreactor, which relates to the field of plant tissue culture and comprises a box body, a cabin wall is arranged in the box body, the box body is divided into a culture cabin and a motor cabin which are mutually sealed, a bottom opening of the culture cabin is used for being externally connected with a water pipe and introducing or discharging a culture solution into or out of the culture cabin, and a culture disc is obliquely arranged in the culture cabin. The plants are uniformly arranged in the culture tray along the circumferential direction, so that at least one part of the plants is immersed in the culture solution; a motor is fixedly mounted in the motor cabin, and the shaft end of the motor penetrates through the cabin wall and then is connected with and drives the culture tray, so that each part of the plant is intermittently immersed into the culture solution. According to the utility model, the motor is utilized to drive the culture tray to uniformly rotate in the culture cabin (water receiving tray), so that each part of the plant is intermittently immersed in the culture solution, the whole reactor is driven and controlled only by the motor, the structure is simple, the control is efficient, and the requirements of most plants with medium and low immersion frequency and some plants with high immersion frequency can be met.

The invention discloses a tissue culture and propagation method of eye-spotted Fritillaria orchid, and relates to the field of eye-spotted Fritillaria orchid tissue culture technology. The method includes selecting a robust eye-spotted Fritillaria orchid plant, performing artificial cross-pollination on it during flowering; cutting off the debris remaining in the fruit pod, washing and disinfecting it and placing it in a sterile dish on a clean bench for standby; dissecting it along the fruit ridge with a cooling scalpel and tweezers, taking out the seeds and sprinkling them on the primary culture medium for dark culture, and light culture after germination; the germinated eye-spotted Fritillaria orchid continues to grow for 45-60 days, and when the leaves begin to differentiate, the seedlings are transferred to the secondary culture medium for culture for 100-120 days; the sterile seedlings are transferred to the rooting culture medium for rooting culture for 180-210 days; hardening and taming transplanting. The present invention overcomes the problems of slow traditional division propagation of eye-spotted Fritillaria orchid, incomplete seed embryo development, and it is difficult for seeds to independently develop into complete plants under natural conditions, while meeting a large number of breeding needs, reducing the excavation of wild resources, and protecting wild resources.

The liquid food stirring device for food detection comprises a rectangular frame and a transverse plate, an output shaft of a first rotating motor penetrates through a circular groove, the annular side face of a screw rod is in threaded connection with a rectangular block, a sliding block is installed on the left side of the rectangular block, a vertical plate is installed at the left end of the upper portion of the rectangular frame, and a sliding groove is formed in the right side of the vertical plate. A thin plate is mounted on the right side of the rectangular frame, an electric push rod is mounted on the right side of the thin plate, a square groove is formed in the middle of the right side of the thin plate in a penetrating mode, a linear moving module is mounted on the left side of the mounting plate, and a protective cylinder is mounted at the moving end of the linear moving module. The stirring rod is reasonable in structure and good in practicability, the stirring rod can be conveniently protected by utilizing a screw transmission structure, the probability of being polluted by dust is reduced, the stirring rod can be conveniently cleaned, and the stirring rod is convenient to use.

The invention relates to the technical field of plant tissue culture, in particular to a disinfection method of a pinellia ternate explant and a tissue culture method of pinellia ternate. The disinfection method comprises the following steps: putting a pinellia ternate explant into ethanol which contains plant essential oil and has the volume fraction of 70-80%, disinfecting for 30-70 seconds, then disinfecting in mercuric chloride with the mass fraction of 0.08-0.13%, and washing off the residual mercuric chloride on the surface of the explant after mercuric chloride disinfection is finished, so as to obtain the disinfected explant; wherein the volume fraction of the plant essential oil is 3%-7%; the plant essential oil is selected from one or more of lemongrass essential oil, oregano essential oil, folium eucalypti essential oil, cinnamon essential oil and mint essential oil. The disinfection method provided by the invention can effectively reduce the damage caused by direct contact of mercuric chloride to plant stem tip cells, increase the germination rate of Xiaozhou pinellia tuber stem tip culture, and reduce the pollution rate of Xiaozhou pinellia tuber virus-free seedlings.

The invention discloses a cyclamen tissue culture propagation method taking ovules as explants, and belongs to the technical field of plant tissue culture. The method comprises the steps of ovule inoculation, callus induction and screening, bud induction and proliferation, strong seedling culture, rooting induction and acclimatization and transplantation. According to the method, casein hydrolysate nutrition supporting, dynamic hormone regulation and control, bud cluster-shaped proliferation, strong seedling rooting, combination of in-bottle seedling hardening and out-bottle seedling hardening, transplanting matrix improvement and other methods are adopted, and an effective new way is provided for improving the cyclamen tissue culture inoculation survival rate and the seedling emergence survival rate.

The utility model discloses a cryopreservation tube filling machine, relates to the technical field of filling equipment, and provides the following scheme aiming at the problems that the precision is difficult to guarantee and even biological samples are polluted or lost due to muscle fatigue and the like when an arm is lifted for filling for a long time in the prior art: the cryopreservation tube filling machine comprises a bracket, a control machine is arranged on one side of the support, containing discs are symmetrically arranged above the middle of the support in parallel, a conveying mechanism is connected to one side of the interior of the support and electrically connected with the control machine, a filling mechanism is arranged in the portion, between the two containing discs, of the support, and the filling mechanism is electrically connected with the control machine. The filling mechanism is matched with the conveying mechanism to be used for filling a preset amount of liquid into the cryopreservation tubes, the automatic grabbing device is novel in structure and high in automation degree, the cryopreservation tubes can be automatically grabbed, and bottle feeding and bottle discharging actions can be stably carried out on the filling mechanism for a long time.

The utility model belongs to the field of wet-type electric dust removers of pollution control equipment, and particularly relates to a convenient-to-clean wet-type electric dust remover of pollution control equipment, which comprises a shell, the device comprises a shell, a smoke inlet is formed in the shell, a wet-type electric dust remover inner body is arranged in the shell, the shell is fixedly connected with the wet-type electric dust remover inner body, a plurality of dust collecting plates are arranged in the wet-type electric dust remover inner body, the wet-type electric dust remover inner body is fixedly connected with the dust collecting plates, and a cleaning mechanism is arranged between the shell and the smoke inlet. Through the design of the cleaning mechanism, the functions of washing and wiping the dust collecting plate are achieved, and the problem that when an existing wet-type electric dust remover cleans dust on the surface of the dust collecting plate, the surface of the dust collecting plate is washed only through a spray head, but the cleaning effect cannot be achieved if the dust is washed only through the spray head is solved. The problem that dust with high adhesive force cannot be cleaned up is solved, and the cleanliness is improved.

The invention belongs to the technical field of medical auxiliary equipment, and discloses a gastrointestinal surgery catheter fixator which comprises a base and a fixing assembly, the base is provided with two first through grooves and a second through groove, the base is connected with a driving clamping piece, a protrusion, a limiting block and two driven clamping pieces, the driving clamping piece is connected with an operating piece through a connecting piece, and the operating piece is connected with the fixing assembly. The two driven clamping pieces are connected with the base through springs, the driving clamping piece and the two driven clamping pieces are each provided with a clamping part, the driving clamping piece is connected with a wedge-shaped linkage piece, and the ends, away from the clamping parts, of the driven clamping pieces abut against the wedge-shaped face of the linkage piece in a sliding mode. The base and the body surface of a patient are fixed through the fixing assembly, the relative position relation of the driving clamping piece and the two driven clamping pieces is controlled through the operation piece and the spring, clamping of the catheter body is achieved, operation is easy, discomfort cannot be brought to the patient, the fixing effect on the catheter body is good, and the influence on the conductivity of the catheter body is small.

The invention discloses a waterproof antibacterial medical polypropylene bottle cap and a preparation method thereof. Raw materials of the bottle cap comprise color masterbatch and polypropylene. The color master batch comprises the following raw materials: 45-50% of modified titanium dioxide, 1.5-4.7% of a dispersing agent and the balance of carrier resin; a preparation method of the modified titanium dioxide comprises the following steps: S1, mixing and stirring an amino silane coupling agent and titanium dioxide in short-chain alcohol to obtain amino modified titanium dioxide; s2, adding the amino modified titanium dioxide into a cysteine solution, and carrying out amidation reaction to obtain amidated titanium dioxide; s3, adding amidated titanium dioxide into a zinc ion solution, uniformly stirring, adding a cysteine solution, stirring for coordination assembly, and filtering, washing and drying after the reaction is completed. Through a specific modification method, MOF crystals are induced to form a needle-like nanostructure on the surface of titanium dioxide, and an efficient and durable antibacterial effect is achieved.

The application provides a kind of intelligent dry goods storage cabinet, including shell assembly, sterilization assembly, air circulation assembly, vacuum assembly and control assembly;Wherein, shell assembly includes the cabinet body with storage area, cabinet door;Sterilization assembly is located in the cabinet body;Air circulation assembly includes air inlet, fan, pipeline, compressor, the pipeline is communicated the air inlet, the storage area and the compressor, the compressor and the fan cooperate to realize the heat exchange of the storage area with outside world;Vacuum assembly includes vacuum pump and pipeline, the other end of the pipeline is communicated the storage area, to be used for by the vacuum pump so that the storage area forms vacuum;Control assembly is electrically connected with the sterilization assembly, the air circulation assembly and the vacuum assembly.The intelligent dry goods storage cabinet provided in the application realizes adjusting storage environment by vacuum assembly and air circulation assembly to prolong the storage time of dry goods and ensure the quality of dry goods, and reduce mildew and insect pests.

The invention discloses a rapid propagation method for a hybrid orchid seedling of a cymbidium orchid and a cymbidium orchid, including hybrid breeding, seed treatment, seed germination, cluster bud induction and rooting culture procedures, selecting cymbidium orchid and a cymbidium orchid for hybrid breeding according to a conventional method, using the obtained hybrid seeds as explants, cleaning and disinfecting the explants, and then sequentially inoculating them in a primary culture medium, an induction culture medium and a rooting culture medium, and culturing them in a suitable environment, and finally obtaining hybrid orchid seedlings of a cymbidium orchid and a cymbidium orchid. The invention adopts pollen pollination at an optimal time stage to improve the fruit setting rate, adopts a high-efficiency and low-toxicity disinfectant to reduce the contamination rate of the explant, and minimizes the effect of the disinfectant on the growth of the explant, selects a suitable culture medium for different growth stages of the hybrid orchid of a cymbidium orchid and a cymbidium orchid, shortens the production and seedling raising cycle, preserves the excellent characteristics of the individual plants to the greatest extent, and promotes the large-scale development of hybrid orchid seedling breeding.

The application discloses a kind of shiitake mushroom culture medium fermentation inoculant, belong to shiitake mushroom fermentation culture medium preparation technical field, the application is screened by the screening test of strain, and fermentation temperature raising agent and ammonia assimilator are screened, in the fermentation process of culture medium, while adding the two inoculants, can effectively promote fermentation temperature, inhibit the growth of miscellaneous bacteria, shorten fermentation period, improve shiitake mushroom bag inoculation quality.

The utility model discloses a cell culture device convenient to add liquid, which belongs to the technical field of cell culture and comprises a culture dish, a placing plate is arranged in the culture dish, a plurality of culture holes are formed in the placing plate, a cover plate is arranged at the top of the culture dish, a plurality of first through holes are formed in the cover plate, and a plurality of second through holes are formed in the first through holes. And the cover plate is rotationally connected with a rotating plate. According to the cell culture device convenient to add the liquid, by arranging a rotating disc, a second through hole, a first through hole, a rotating plate and a screw rod, a worker enables an injector to penetrate through the first through hole and the second through hole and adds a nutrient solution into a culture hole, after adding is completed, a nut is rotated to drive the rotating plate and the rotating disc to rotate, and when the second through hole is aligned with the solid part of a cover plate, the rotating plate is rotated; according to the device, when a nutrient solution needs to be added into one culture hole, the cover plate does not need to be wholly opened, so that the cell pollution probability is reduced, and the cell culture success rate is increased.

The present invention relates to a centrifugal rinsing device for producing calcium butyrate, and relates to the technical field of centrifugal equipment. The device comprises a frame, a centrifugal mechanism, a stirring mechanism, a cleaning mechanism, a feeding mechanism and a collecting mechanism, wherein the centrifugal mechanism, the stirring mechanism, the cleaning mechanism, the feeding mechanism and the collecting mechanism are all arranged on the frame, the stirring mechanism is used to stir the rinsed material, the centrifugal mechanism and the stirring mechanism are connected by a linkage mechanism, and the linkage mechanism comprises a first driving assembly and a linkage member connected to the first driving assembly. The present invention improves the yield of the product.