427results about How to "Avoid churn" patented technology

The invention discloses giant salamander grease and application thereof in a blood fat reducing product. The giant salamander grease is obtained by adding papain into giant salamander tissues for enzymolysis and then adsorbing by using an egg white modified microsphere adsorbent. The giant salamander grease is refined by using the egg white modified microsphere adsorbent, and then the giant salamander grease is compounded with the dark tea extract, the hawthorn extract and the lotus leaf extract and processed into embedded particles, so that the water solubility of the giant salamander grease preparation can be improved, and the giant salamander grease preparation can be used as an oral preparation for reducing blood fat.

The application relates to the technical field of wastewater treatment equipment, in particular to a zero-emission multistage wastewater treatment device for industrial high-salinity wastewater, which comprises a base, a fixing frame fixedly installed on the base and a supporting limiting frame fixedly installed on the fixing frame, the supporting limiting frame is slidably connected with a heat exchange box, the front end face of the fixing frame is provided with limiting assemblies corresponding to the heat exchange box on both sides, a sedimentation tank and a core treatment tank are installed on the fixing frame from top to bottom and located at the bottom of the heat exchange box, the heat exchange box, the sedimentation tank and the core treatment tank are sequentially communicated through connecting channels, a feeding pipe is arranged on the side wall of the sedimentation tank, the sealing assembly is driven to rotate by a motor-driven screw rod, the extrusion frame is driven to slide along the guide column, the pressure of the extrusion frame on the third sealing frame can be automatically adjusted, the extrusion plate can be tightly combined with the third sealing frame, the pressure is uniformly distributed, the traditional manual sealing adjustment mode is replaced, and the sealing reliability is further improved.

The invention provides a method for preventing and controlling nitrogen and phosphorus loss of sandy and dry cultivated land based on EICP root reinforcement and relates to the field of soil ecological protection and agricultural pollution prevention and control. According to the method, a three-dimensional prevention and control system is formed from the two dimensions of surface layer film covering protection and deep root system soil fixation through the synergistic effect of EICP film covering and local plant root system three-dimensional reinforcement, wind erosion and water erosion are effectively resisted, the soil nitrogen and phosphorus loss rate of the large-gradient sandy and dry cultivated land is remarkably reduced, and meanwhile the soil desertification process is slowed down; the EICP film covering layer has good water permeability and moisture retention, nitrogen and phosphorus loss can be prevented, rainfall infiltration and soil moisture conservation can be guaranteed, and the germination rate and the growth speed of crops are increased; according to the method, local crop root system reinforcement is selected, the original planting structure is not disturbed, the economic benefit of cultivated land yield per mu is guaranteed, a harmless means of combining microorganisms, geotechnical engineering and agricultural planting is adopted, external pollution sources are not introduced, original basic characteristics of soil are not damaged, and the requirement for ecological protection of the Yellow River basin is met.

This invention discloses a submarine cable anti-scouring device and its construction method, applicable to the field of submarine cable protection technology. The invention includes a filter layer and a flexible protective layer. The filter layer comprises multiple filter pads arranged sequentially along the axial direction of the submarine cable on the surface of the cable and / or the seabed, with adjacent filter pads overlapping. The flexible protective layer comprises multiple flexible protective pads arranged sequentially along the axial direction of the cable on the filter layer. At least one flexible protective pad is provided at the overlap of any two adjacent filter pads to press the filter layer firmly against the surface of the cable and / or the seabed. This application, through the cooperation of the filter layer and the flexible protective layer, improves the stability of the submarine cable anti-scouring device to reduce inter-segment displacement and possesses adaptive capability to seabed subsidence deformation, effectively enhancing the anti-scouring effect of the submarine cable.

The application relates to a connecting structure of a heat-insulated oil pipe and belongs to the technical field of heat-insulated oil pipes, which comprises an oil pipe, the oil pipe comprises an outer pipe and an inner pipe, the inner pipe is located in the inner part of the outer pipe, a heat-insulated cavity is formed between the outer pipe and the inner pipe, aerogel is filled in the heat-insulated cavity, the end parts of two sections of the inner pipe are fixedly connected through a threaded connection assembly, the end parts of two sections of the outer pipe are provided with heat-insulated connecting sleeve pipes, and the two ends of the heat-insulated connecting sleeve pipes are fixedly provided with plug-in rings. The heat-insulated ring on the plug-in ring of the end part of the heat-insulated connecting sleeve pipe is tightly abutted against the end part of the outer pipe, heat transfer of the connecting gap of the outer pipe can be blocked, the flowability of hot oil in the inner pipe is prevented from being deteriorated, the gap at the connecting position of the two sections of the double-layer heat-insulated oil pipe can be sealed and filled, heat loss from the gap at the connecting position of the two sections of the double-layer heat-insulated oil pipe is prevented, the heat-insulating effect of the connected heat-insulated oil pipe is ensured, and the flowability of oil is prevented from being affected.

The utility model provides an environment-friendly waterproof structure, and relates to the field of building waterproof structures. Two rows of top bolts symmetrically penetrate through the outer eaves of the left side and the right side of the flexible plastic waterproof pad, the flexible plastic waterproof pad is fixed to a roof through the two rows of top bolts, and a plurality of rows of planting grooves are formed in the top end of the flexible plastic waterproof pad at equal intervals; the planting groove is of a rectangular structure, the interior of the planting groove is filled with soil, and green plants and flower plants for greening and environmental protection are planted in the soil; a soil sealing plate is embedded in an opening in the top end of the planting groove in a sealing and covering mode, the whole soil sealing plate is of a U-shaped structure, two L-shaped clamping plates are symmetrically and downwards welded to the top ends of a left side plate and a right side plate of the soil sealing plate, and two soil filtering assemblies can intercept and filter residual and mingled soil in overflowing water through nylon filtering wires evenly and densely distributed on the two soil filtering assemblies; the soil content in the rainwater is further reduced, and the probability that a roof drainage system is blocked and the water and soil loss of soil in the planting groove are further reduced.

The application provides a porous carbon nanofiber electrocatalyst loaded with cobalt / lanthanum hydroxide heterojunction and a preparation method. The preparation method comprises the following steps: adding 4,4-diamino diphenyl ether and pyromellitic dianhydride into a solvent, uniformly mixing, and preparing a polyamide acid precursor spinning solution; electrospinning the prepared polyamide acid precursor spinning solution to prepare polyamide acid nanofibers; immersing the prepared polyamide acid nanofibers in a mixed metal salt solution containing cobalt salt, lanthanum salt and zinc salt to prepare polyamide acid nanofiber precursors loaded with metal ions; and performing programmed temperature heat treatment on the prepared polyamide acid nanofiber precursors loaded with metal ions in a protective atmosphere to prepare the porous carbon nanofiber electrocatalyst loaded with cobalt / lanthanum hydroxide heterojunction. The prepared porous carbon nanofiber electrocatalyst loaded with cobalt / lanthanum hydroxide heterojunction has excellent electrochemical oxygen reduction reaction and oxygen evolution reaction bifunctional catalytic activity.

This utility model discloses a transmission cleaning and oil change machine, relating to the field of automotive transmission maintenance technology. It includes a housing, with a front panel fixedly installed inside the housing. The front panel has perforated holes connecting its front and rear sides. A heater is inserted into one of these perforated holes, with its back extending through the perforation to the back of the front panel. A fixing component is positioned between the heater and the front panel. This utility model, by providing a perforated front panel inside the equipment housing, allows the heater to partially pass through these holes after being positioned on the front panel, saving space on the front panel and preventing direct contact between the heater and the housing shell, thus avoiding heat loss. This achieves efficient installation of the heater within the housing. Furthermore, the fixing component facilitates quick assembly and disassembly of the heater from the front panel, improving the convenience and efficiency of heater installation.

The invention belongs to the technical field of strawberry planting, and discloses a strawberry elevated planting water and fertilizer integrated device which comprises a control box, a gravel filter is installed on the rear side of the control box, the gravel filter is fixedly communicated with a laminated filter, and through cooperation of structures such as an outer pipe, an inner pipe, a spiral groove and an inclined hole, a double-layer drip irrigation pipeline is utilized, and the water and fertilizer integrated device is formed. By rotating the adjusting inner pipe, the drip irrigation point position can be adjusted, long-time drip irrigation at the same point position is avoided, each strawberry plant can uniformly receive fertilizer irrigation, the drip irrigation density can be adjusted, the drip irrigation rate can be adjusted in cooperation with a machine body, the device effectively adapts to the plant growth condition, constant-speed and accurate drip irrigation is achieved, it is ensured that the plant growth environment is basically consistent, and the quality is improved; the double-layer pipeline of the outer pipe and the inner pipe is adopted for drip irrigation, compared with a traditional mode that two single-layer pipes are used, the number of branches is reduced, the water pressure needed by a single planting box can be effectively reduced, more production lines can be increased, and therefore the strawberry planting yield is increased.

The utility model discloses a kind of foldable layered multifunctional fruit boxes, including the box body of circular and top end open, the top end of box body is detachably installed with box cover, the top end of box cover and the bottom end of box body are respectively fixedly connected with upper bellows and lower bellows, the top end and bottom end of upper bellows and lower bellows are respectively fixedly connected with upper closure plate and lower closure plate, and the utility model relates to fruit box technical field.The multifunctional fruit box of foldable layered, by setting upper bellows and lower bellows, the fruit box is in use, fruit is contained in the inside of box body, then pull out upper closure plate and lower closure plate, upper bellows and lower bellows can be unfolded, then add ice block to the inside of two by two ice-adding mouth, fruit in the inside of box body can be cooled by ice block, prevent fruit from losing too much moisture because of the temperature of weather is too high, play certain degree of fresh-keeping effect.

The invention relates to the technical field of forest cultivation, and discloses a carya illinoensis fruit forest variety configuration method which comprises the following steps: configuring a main cultivation variety and a pollination variety in a fruit forest; preparing a pollination synergistic composition; the composition is sprayed at the initial stage of stigma exposure of female flowers of a main cultivated variety. The composition comprises a phenolic acid grafted carboxymethyl chitosan derivative, low methoxyl pectin, a calcium ion cross-linking agent, sugar alcohol chelated boron and spermidine. According to the method, an interfacial film with antioxidant activity is formed on the surface of the stigma by using the grafting modified matrix, so that the stigma browning is effectively inhibited, and the pollination period is prolonged; by constructing a calcium cross-linked low-methoxyl pectin interpenetrating network, an interfacial film is endowed with an intelligent degradation characteristic of enzyme-sensitive response to pollen, and protection at ordinary times and immediate dissolution after touching flowers are realized. According to the method, pollen is captured through static electricity, nutritional factors are released in a targeted mode, the pollination and fertilization efficiency is remarkably improved, the sterility risk in the flowering phase is relieved, and the yield and quality of carya illinoensis are improved.

The utility model relates to the related technical field of gear boxes, in particular to a gear box convenient to maintain, which comprises a box body, a sealing plate, a reinforcing plate and a sealing component, the sealing plate is in threaded connection with a sealing position on the box body, and the reinforcing plate penetrates through a fastening position on the sealing plate. According to the utility model, the up-and-down split design and the left-and-right split design of the gear box can be combined, and when the gear box needs to be opened in the connecting, fixing and maintaining processes through bolts, the built-in box can be fastened on the gear shaft bracket and the sealing plate in a threaded manner, so that the sealing plate is fixed, and the sealing plate is fixed; and external sealing is conducted through a packaging cover plate, a mounting groove and a clamping frame, the built-in box is sealed in the gear box, foreign matter is prevented from entering the gear box through gaps in the using process, when the gear box is opened during maintenance, the built-in box prevents part of gear lubricating oil from being lost, the lubricating oil is kept in the built-in box, and after the gear box is maintained and disassembled, the gear box is prevented from being damaged. And the gear lubricating oil without loss can reduce the transmission wear degree of the gear set.

The invention discloses an anaerobic denitrifying bacterial agent as well as a preparation method and application thereof, and belongs to the technical field of water environment treatment. The anaerobic denitrifying bacterium agent is prepared from the following components in parts by weight: 15 to 30 parts of sterile water, 15 to 60 parts of normal saline, 5 to 10 parts of micro-capsule embedded anaerobic denitrifying bacteria, 5 to 20 parts of a porous composite modified carrier, 10 to 30 parts of a carbon source, 4 to 7 parts of nutrient elements, 2.5 to 4 parts of a buffering agent and 1 to 5 parts of a stabilizer, the micro-capsule embedded anaerobic denitrifying bacteria are obtained by embedding anaerobic denitrifying bacteria with an alginic acid gel solution and a calcium chloride solution; the porous composite modified carrier is obtained by crosslinking modified nano iron oxide, modified nano titanium dioxide, a functional polymer solution and glutaraldehyde. The anaerobic denitrifying bacterial agent provided by the invention can effectively improve the efficiency of treating nitrogen pollution of a water body.

The utility model relates to the technical field of slope green plant placement, in particular to a supporting facility for slope green plant placement, which comprises a slope protection brick, planting holes for green plant placement are formed in the surface of the slope protection brick, a splicing mechanism is arranged on the surface of the slope protection brick, and the splicing mechanism internally comprises a splicing block, a wedge groove, a splicing groove, a wedge column and an insertion hole. The slope protection brick comprises a slope protection brick body, stabilizing mechanisms are arranged at the corners of the surface of the slope protection brick body, each stabilizing mechanism is composed of a stabilizing nail and a stabilizing assembly, a drainage mechanism is arranged in the slope protection brick body, and the interior of each drainage mechanism comprises a filter screen, a flow guide hole and a drainage channel. According to the utility model, the phenomenon of water and soil loss is not easy to occur, the convenience degree when the supporting facility is spliced and laid is improved, and the stability when the supporting facility is used is improved.

The present application relates to the technical field of edible salt, and particularly relates to a green edible salt production process. Technical problems are as follows: the existing technology causes the caking problem of edible salt in the production, transportation, storage and use process due to the zero addition of anti-caking agent. A technical solution is as follows: a green edible salt production process comprises the following steps: A: secondary cooling of finished salt before packaging; the finished salt is sent into a secondary cooler after coming out of a self-made salt device dryer, and the temperature of the finished salt is reduced to close to room temperature through circulating desalted water; B: screening of the finished salt particles cooled in step A, and selection of the oversize material with relatively large particle size and not easy to caking; C: addition of iodine agent into the finished salt cooled and screened in step B; D: storage of the finished salt in step C for a period of time before packaging; E: packaging by using a packaging material with strong blocking property and good sealing performance.

This invention belongs to the field of membrane separation technology, specifically relating to a method for preparing a polytetrafluoroethylene (PTFE) composite membrane. The preparation method includes: (1) dissolving a spinning aid, a barium source, a titanium source, and a manganese source in a composite solvent, and then electrospinning to obtain precursor fibers; subsequently, blending the precursor fibers with a grain refiner, and heat-treating to obtain doped ferroelectric fiber bundles; (2) further polymerizing organic acids, inorganic acids, conductive fillers, and conductive polymers with monomers and oxidants to finally obtain a conductive polyaniline composite; (3) incorporating Mxene and the conductive polyaniline composite into an aqueous PTFE emulsion, and then further incorporating the doped ferroelectric fiber bundles and stirring to obtain a suspension; the suspension is then coated, post-treated, and kept warm to obtain a PTFE composite membrane. This invention improves the long-term fouling resistance of the PTFE membrane by doping the doped ferroelectric fiber bundles, the conductive polyaniline composite, Mxene, and PTFE.

The invention discloses a four-step-in-one negative pressure oil-carrying shutdown method for a styrene dehydrogenation reaction system, and relates to the technical field of styrene dehydrogenation. A negative-pressure steam oil-carrying mode is adopted for the first time, after feeding of the dehydrogenation reaction system is cut off, operation of a tail gas compressor is still maintained, the normal negative-pressure working condition of the reaction system is maintained, and steam oil-carrying under the negative-pressure working condition is carried out; after oil carrying is finished, the tail gas compressor still keeps running, the pressure is gradually increased to micro-positive pressure, and catalyst scorching is conducted; and after scorching is finished, the tail gas compressor is still maintained to operate in the steam cooling and nitrogen cooling processes until nitrogen cooling is finished, the tail gas compressor is stopped, and meanwhile multiple times of starting and stopping of the tail gas compressor are optimized into one-time stopping operation in the stages of steam oil carrying, catalyst scorching, steam cooling and nitrogen circulating cooling. One-time shutdown operation of the tail gas compressor is achieved through negative pressure shutdown, the shutdown operation step sequence of the reaction system is greatly simplified, and the shutdown disposal difficulty of the dehydrogenation reaction system is reduced.

The present application relates to lens detection technical field, especially to a kind of lens heating defrosting demisting effect test device.The present application provides a kind of lens heating defrosting demisting effect test device, which can adjust the height of lens, and easy to operate.A kind of lens heating defrosting demisting effect test device, including heating base;Water tank, heating base upper portion is connected with water tank;Guide sleeve, three guide sleeves are uniformly connected with water tank upper portion;First support frame, first support frame is slidably connected in the three guide sleeves, and first support frame lower portion is slidably connected with water tank;Adjusting mechanism, adjusting mechanism is connected between water tank front upper side and first support frame front lower side.The present application places lens on the upper portion of first support frame, and the first support frame drives lens to move up and down to adjust height by driving screw forward and reverse rotation with forward and reverse rotation hand wheel, so as to test the lens with different heat resistance, so that the operation is relatively simple, and lens does not need to be held for detection.

This utility model provides a ridging and piling machine, comprising: a body assembly, a ridging device, a piling device, a collecting device, and a stabilizing component. The body assembly consists of a frame, the ridging device consists of a crossbeam and sliding seats, with two symmetrically distributed sliding seats slidably connected to the surface of the crossbeam. The piling device includes a collecting trough, with a limiting mechanism below the collecting trough. The collecting device is fixedly installed to the bottom of the frame, and the stabilizing component is located at the tail end of the frame. This application uses the body assembly for ridging and piling operations in the field, scraping away gravel from the soil surface while traction is applied. The collecting device can guide and collect gravel, and the soil can be finely crushed and discharged. After combing, it can be filled onto the ridges. The piling range can also be adjusted according to the height of the ridging, simultaneously achieving soil leveling, ensuring the structural strength of the ridged ridges, preventing soil erosion during rainy weather, and adjusting the pressure of the rollers according to the soil compaction, thus improving the performance of the ridging and piling machine.

The invention belongs to the technical field of cosmetics, and discloses a water-sweat-resistant and sunscreen synergistic composition as well as a preparation method and application thereof. The composition comprises the following components: rice starch, candelilla wax, sunflower seed wax, silica and beewax. According to the formula of the composition, the rice starch, the candelilla wax, the sunflower seed wax, the silica and the beewax are contained, and through the unique formula combination, a good synergistic effect is generated among all the components, so that the composition has excellent water and sweat resistance durability and sunscreen synergism.

The invention relates to the technical field of medical instruments, in particular to an enteric cavity segment filling controllable device for colon cancer preoperative T staging, which comprises a central mandrel, a flexible head end cap is arranged at the foremost end of the central mandrel, and a near-end balloon inflating pipeline, a far-end balloon inflating pipeline and a main pipeline which are mutually independent are arranged in the central mandrel; the near-end balloon is arranged on the central mandrel in a sleeving manner and is communicated with the near-end balloon inflating pipeline; the far-end balloon is arranged on the central mandrel in a sleeving manner, is positioned on the far side of the near-end balloon and is communicated with the far-end balloon inflating pipeline; at least two main pipeline lateral holes are formed in the tube wall of the central mandrel between the near-end balloon and the far-end balloon, are communicated with the main pipeline and are used for injecting a contrast agent or normal saline into the closed enteric cavity section between the two balloons. The near-end balloon and the far-end balloon are synchronously filled at the two ends of a target intestinal segment to form a closed segment, and a contrast agent is uniformly injected through lateral opening, so that the intestinal wall is fully expanded and does not collapse, and the display definition of the five-layer structure of the intestinal wall is remarkably improved.

The utility model discloses a kind of sheep shed ventilation and air exchange regulation and control devices, belong to the technical field of breeding, including sheep shed ontology, the sheep shed ontology includes frame and roof, the both sides of the frame are provided with air intake mechanism, the top of the roof is provided with exhaust mechanism, the utility model is provided with air intake mechanism, U type pipe bottom is buried in the interior of soil, utilize the natural temperature buffer effect of soil, the temperature of the air entering (winter preheating, summer precooling) is adjusted, first electric push rod drives T type disc to move up and down, realize the opening or closure of U type pipe and air intake cover connecting port, realize the internal delivery of external fresh air to sheep shed ontology, utilize soil precooling / preheating air, realize the internal delivery of low temperature or warm airflow to sheep shed ontology, reduce the energy consumption of traditional temperature control equipment, reduce breeding cost.

The application provides a method and device for treating wastewater by combining a suspended filler floating bed and a soil infiltration system, and the method comprises the following steps: S1, breeding wastewater is treated by the suspended filler floating bed after passing through a hydrolysis tank, and effluent is treated in a sedimentation tank, and wastewater of the suspended filler floating bed is returned to the suspended filler floating bed for secondary treatment; S2, wastewater of the sedimentation tank is returned to the hydrolysis tank; and S3, effluent of the sedimentation tank is introduced into a soil underground infiltration system. The system provided by the application is beneficial to further strengthening the effects of denitrification, phosphorus removal and removal of suspended solids, and solves the problems of low dissolved oxygen content of influent and wastewater in the system, which is not conducive to the growth of nitrifying bacteria, and low effective volume utilization rate. In the use process, the filler does not need to be replaced, and mechanical aeration equipment does not need to be added, and the system has the advantages of low investment cost, no need to add chemical agents for treatment, obvious effect, not easy to breed mosquitoes, simple operation and management, and beautification of the environment, and has remarkable ecological and economic benefits for promoting deep purification of breeding wastewater.

The present application relates to copper nickel ore sorting technical field, specifically for low grade copper nickel ore combined sorting device and process, including heavy plate feeder, the output end of heavy plate feeder is connected with short distance closed belt conveyor, the present application can separate 87.7% of invalid gangue components in advance after the whole set of combined sorting process is put into operation, reduce the material volume of flotation section from the source, the reagent dosage and water and electricity energy consumption are reduced synchronously, effectively reduce the processing cost of low grade copper nickel ore, significantly improve the production profit level of the project, the waste rock produced by sorting is used as underground filling aggregate after fine crushing, which replaces the purchased gobi sandstone raw material, achieves closed loop utilization of solid waste resources, and meets the green mine development and construction guidelines.

This invention relates to the technical field of soil and water conservation equipment, and discloses a filter layer device for drainage holes in retaining walls in seasonally frozen soil areas of plateau regions. The device includes a partition plate 1 with several water outlet holes 1 on its surface. A partition plate 2 is located on the side of the partition plate 1, with several water outlet holes 2 on its surface. A partition plate 3 is located on the side of the partition plate 2 away from the partition plate 1, with several water outlet holes 3 evenly spaced on its surface. A partition plate 4 is located on the side of the partition plate 3 away from the partition plate 2. The partition plates 1, 2, 3, and 4 are all fixedly connected by side plates. By using perforated partitions, the installation position does not need to be readjusted before backfilling the retaining wall after on-site assembly. The backfill soil is less prone to deformation and damage during compaction. The filter layer construction combines perforated partitions with filter media in the filter box, effectively filtering soil carried in the water and improving soil protection, thus preventing soil and water loss.

This utility model discloses a thickener foam elimination structure, comprising: a thickener treatment tank, a rake frame arranged within the thickener treatment tank, and multiple sets of scraper components vertically supported on the rake frame. The multiple sets of scraper components are arranged sequentially and at intervals along the circumference of the treatment tank, moving in response to the fluctuations in the slurry surface within the thickener treatment tank, thereby scraping the mineralized foam in the thickener treatment tank towards the center and causing it to accumulate. A thickener bridge is also erected above the thickener treatment tank, and a spray system is mounted on the thickener bridge. The spray system is used to spray the supernatant from the upper layer of the thickener treatment tank or externally supplied washing water onto the mineralized foam, driving the mineralized foam towards the center of the thickener treatment tank and simultaneously defoaming the foam. This novel structure effectively reduces processing costs, prevents mineralized foam from overflowing outwards through overflow outlets located on the outer periphery of the thickener treatment tank, and significantly reduces the amount of defoamed mineral particles carried away by the overflow.

The application discloses a titanium nitride supported osmium platinum catalyst with a gradient polarization effect, a preparation method of the catalyst and application of the catalyst in fuel cells, and belongs to the field of new energy materials and electrocatalysis technology. The catalyst comprises a TiN carrier and a Pt-Os alloy cluster supported on the carrier, wherein Os is doped in the form of a single atom in a Pt nanocluster. A gradient polarization architecture is constructed inside the catalyst, electrons are directionally transferred in TiN-Pt-Os, and electron-rich Os single atoms act as oxygenophilic sites to capture OH ‑ , adjacent Pt sites dissociate H2, through two-site cooperation and interface water network regulation, significantly accelerating the kinetics of alkaline hydrogen oxidation reaction. The mass activity of the catalyst reaches 11337 A / g, which is 24.7 times that of commercial Pt / C; when applied to an AEMFC single cell, the peak power density reaches 1.49 W / cm 2 , which is 2.7 times that of commercial Pt / C, and has excellent practical application prospect.

This invention relates to the field of wastewater treatment technology, and more particularly to a wastewater treatment device based on an algae-bacteria symbiotic photobioreactor, comprising: a mounting frame and a treatment tank fixed inside the mounting frame. The treatment tank contains a reaction assembly, which includes a drive rod and a reaction spiral blade. The drive rod is vertically positioned inside the treatment tank, and the reaction spiral blade is fitted onto the drive rod. The reaction spiral blade has reaction holes and contains a biological reaction layer. A collection hood, shaped like an inverted frustum, is located at the bottom of the treatment tank. Two symmetrical outlets are located at the bottom of the collection hood. A collection assembly, comprising a sealing ring, a guide ring, a movable rod, and a collection box, is located below the collection hood. The sealing ring is fixedly connected to the bottom side of the collection hood. This invention causes the generated sediment to converge centripetally at the bottom of the treatment tank, avoiding the formation of eddy current dead zones.

The utility model discloses a portable wheat single plant bagging pollination auxiliary device, including the pollination cover of ground insertion, pollination cover inside inserts the wheat of pollination, pollination cover one side is provided with the recess, recess inside fixedly has the mark card, pollination cover top side fixedly connected with the fixing frame, and the vibration block is vibratedly connected to the inboard of fixing frame, and pollination cover top and bottom all are provided with the opening, and the upper sealing piece is fixedly connected to pollination cover top opening inner wall, two groups are provided with the upper sealing piece, and the upper sealing piece is the sector structure, the opening inside inserts the collection powder hopper, the collection powder hopper is funnel shape structure, and the collection powder hopper bottom opening corresponds with the position of the wheat column head of pollination, and the upper sealing piece one end bending is pasted in the collection powder hopper outer wall, and the collection powder hopper top is provided with the bundle mouth, and the lower sealing piece is provided to pollination cover bottom opening inner wall. The device can improve the effect of pollen release, thereby guaranteeing the pollination effect, and reducing the frequency of pollination.