50results about How to "Stable growth" patented technology

The invention relates to the technical field of lithium iron phosphate production, and discloses a carbon-coated titanium-doped lithium iron phosphate positive electrode material and a preparation method thereof.The preparation method comprises the following steps that 1, a ferrous solution and a phosphorus source solution are mixed in proportion, dopamine hydrochloride is added, a pH regulator is dropwise added in the stirring state, the pH of the solution is adjusted to 4.0-5.5, a reaction is conducted, a titanium source solution is added, and a reaction solution is obtained; after uniformly stirring, continuously dropwise adding a pH regulator to regulate the pH value of the solution to 5.5-6.5; the iron phosphate octahydrate coated with the titanium-embedded polydopamine is obtained; 2) calcining the titanium-embedded polydopamine-coated ferrous phosphate octahydrate in an inert gas atmosphere to obtain carbon-coated titanium-doped anhydrous ferrous phosphate; 3) mixing the carbon-coated titanium-doped anhydrous ferrous phosphate with lithium phosphate and a carbon source, ball-milling, mixing, spray-drying and calcining to obtain a carbon-coated titanium-doped lithium iron phosphate positive electrode material; the synthesis process is simple, and energy consumption is reduced.

The utility model discloses a crop planting test incubator, and belongs to the technical field of incubators. A crop planting test cultivation box comprises a box body. A telescopic mechanism is installed on the bottom face of the bearing frame, a telescopic rod is slidably connected to the bottom face of the telescopic mechanism, a supporting column is fixedly connected to the end of the bearing frame, a rolling column is rotatably connected to the bottom face of the supporting column, the supporting column is matched with the lower portion of the box body in an inserted mode, and the telescopic rod is slidably connected with the bottom face of the box body. Through the design of the stabilizing frame in the cultivation barrel, the root of the seedling can be conveniently fixed, and through the design of the supporting piece, after the seedling grows up, the supporting frame can be inserted outside the seedling, the supporting frame can be rotated to drive the rotating rod to rotate, and the supporting frame stops when the rotating rod is subjected to external force; at the moment, a spring can drive a friction block to abut against the outer wall of the bearing frame for friction, then a limiting supporting frame can be fixed, the seedlings can be supported through the design, and stable growth of the seedlings is guaranteed.

The utility model discloses an ecological wall structure of a green building, and belongs to the field of ecological walls. Comprising an ecological wall body, a containing cavity is formed in the front end of the ecological wall body, a rotating rod is rotationally arranged in the containing cavity, an inserting groove is formed in the rotating rod, an inserting plate is installed at the inserting groove in an inserting mode, a mounting frame is fixed to one side of the inserting plate, a bearing hole for bearing a flowerpot is formed in the mounting frame, and a positioning hole is formed in the center of the top of the inserting plate; a positioning cavity is formed in the middle section of the top, corresponding to the inserting groove, in the rotating rod. A positioning assembly is installed in the positioning cavity. And the positioning assembly comprises a positioning pin slidably arranged in the positioning cavity, a lead screw is installed at the center of the positioning pin in a penetrating mode, an embedded disc is fixed to the top of the lead screw, and the embedded disc is rotatably installed on the rotating rod in an embedded mode. And after the mounting frame is damaged, the mounting frame can be conveniently and rapidly replaced, and the overall replacement efficiency is guaranteed.

The invention provides a water-soluble fertilizer prepared based on an EPG water and fertilizer aggregation and absorption technology, and relates to the technical field of fertilizers, the water-soluble fertilizer comprises the following components by weight: 0.1-0.5 part of Ectoin, 0.05-0.2 part of polyglutamic acid with a low polymerization degree, 0.05-0.2 part of polyglutamic acid with a high polymerization degree, and 0.05-0.2 part of gamma-aminobutyric acid. In the invention, the cyclic amino acid derivative enhances the retention of water around cells and reduces the loss of water penetrating through cell walls, thereby maintaining the water balance of plants in pressure environments such as drought and the like. In addition, the composition inhibits the generation of free radicals through the anti-oxidation effect, and delays the aging process of plants. Different polymerization degrees of polyglutamic acid ensure immediate and lasting nutrient release, low-polymerization-degree polyglutamic acid quickly acts on crops to improve the initial growth speed, and high-polymerization-degree polyglutamic acid ensures continuous supply to avoid nutrient interruption.

The application provides a method for inducing poly-podophylli rhizoma by using clump buds, comprising the following steps: S1, cutting stem segments from a podophylli rhizoma mother plant, soaking and cleaning to obtain explants; S2, disinfecting and cleaning the explants, inoculating into a clump bud induction medium to obtain podophylli rhizoma clump buds; S3, inoculating the clump buds into doubling liquid I, washing with a liquid clump bud induction medium after culture, and then transferring into doubling liquid II; S4, taking out the clump buds, cleaning, inoculating into a clump bud induction medium, and then inoculating into a bud proliferation medium; S5, waiting until 1-2 cm, screening out potential mutant strains through phenotypes, inoculating into the bud proliferation medium for subculture, and obtaining mutant plants; and S6, rooting culture of the mutant plants, and after root systems grow, planting and raising seedlings, and then poly-podophylli rhizoma plants are obtained. In the research, suitable concentration of colchicine is used for induction treatment twice, and through stage concentration switching and intermittent recovery strategies, the poly-ploid induction efficiency and explant survival are effectively considered.

The invention discloses a high-temperature-resistant salt-tolerant microbial inoculant culture nutrient solution and a preparation method thereof. The high-temperature-resistant salt-tolerant microbial inoculant culture nutrient solution comprises the following components: 1.0% (w / v) cane sugar or 1.0% (w / v) glucose; 0.5% (w / v) potassium nitrate (KNO3); 0.3% (w / v) of monopotassium phosphate (KH2PO4); 2-3% (w / v) sodium chloride (NaCl); 0.05% (w / v) of nano silicate; 0.1% (w / v) of a seaweed extract; 0.001% (w / v) of carbon nanotubes; 0.002% (w / v) of amino acid chelated iron; 0.2% (w / v) of agarose or 0.2% (w / v) of xanthan gum; 0.01% (w / v) of a mixture of vitamin C and vitamin E; 0.0005% (w / v) of gibberellin and cytokinin; and 0.005% (w / v) HEPES buffer solution. By adding the nano silicate and the carbon nanotubes, the thermal stability is enhanced, microbial cells are protected to survive and breed in a high-temperature environment, the salinity adaptability is improved by the sodium chloride and the seaweed extract, the growth of microorganisms in a high-salt environment is enhanced, the microorganisms can be effectively protected to survive and breed in the high-temperature and high-salt environment, and the survival rate of the microorganisms in the high-temperature and high-salt environment is improved. Sufficient nutritional ingredients are provided to promote rapid growth of microorganisms, meanwhile, the pH value of the nutrient solution is kept stable, and smooth proceeding of the culture process is ensured.

The invention discloses a V / G value prediction and quality evaluation method for a semiconductor silicon single crystal growth process, and belongs to the technical field of semiconductor material preparation and intelligent process control. Comprising the following steps: acquiring process parameter time sequence data; performing fragment division on the data to generate continuous data units, and generating a time sequence feature sequence through time sequence dependence modeling; meanwhile, performing multi-scale decomposition to obtain high-frequency and low-frequency components, and generating a corresponding frequency domain feature sequence through fragment division; splicing the time sequence and the frequency domain feature sequence into a time-frequency fusion feature sequence; performing cross-domain correlation coding and prediction mapping based on the sequence, and outputting a V / G value prediction sequence; and finally, determining a trend category and a process quality grade based on the prediction sequence. According to the invention, high-precision trend prediction of the V / G value and intelligent online evaluation of the process quality are realized.

The invention belongs to the technical field of vegetation restoration, and particularly relates to a matrix particle for slope vegetation restoration in a high-altitude area and a construction of the matrix particle, and the matrix particle for slope vegetation restoration in the high-altitude area comprises matrix soil and an additive auxiliary agent, the matrix soil comprises the following components in parts by weight: 40-48 parts of planting soil, 10-15 parts of vermiculite, 20-25 parts of straw, 3-6 parts of compound fertilizer and 12-18 parts of turf; the additive auxiliary agent comprises the following components: 0.1-0.8 part of a binder, 5-10 parts of bentonite and 4-8 parts of an anti-transpiration agent, the planting soil is sandy loam, discarded soil or waste farmland soil, and the straw is at least one crop straw of rice, wheat, corn, peanuts, sweet potatoes, oilseed rape and soybeans. The substrate has high heat preservation performance, so that the freeze-thaw resistance of the substrate particles can be improved, vegetation can stably grow on the slope of the high-altitude area, the problems that the slope vegetation is short in growth cycle, low in overwintering rate and poor in vegetation recovery rate are effectively solved, and the recovery effect of the slope vegetation of the high-altitude area can be guaranteed.

The application discloses a method for extracting sodium glycolate from pesticide wastewater and belongs to the wastewater treatment field. After 2,4-D production wastewater is stirred after pH is adjusted to 3.0, the filtrate is collected by filtration, the pH of the filtrate is adjusted to 8.0, and the concentrated solution is obtained by concentration under reduced pressure. The concentrated solution, modified cyclodextrin and modified cellulose are mixed according to the weight ratio of 100:0.8-1.2:0.1-0.3, the first mixing and stirring are performed, the second mixing and stirring are performed after cooling, the third mixing and stirring are performed after cooling again, and the filter cake is collected. After the filter cake and deionized water are mixed and stirred, the filtrate is collected by filtration, and the sodium glycolate is obtained by vacuum drying of the filtrate. The application solves the problem of co-crystallization of sodium glycolate and sodium chloride, and improves the purity and yield of sodium glycolate.

The invention relates to a grouper crossbreeding method. The method comprises the four steps of parent breeding, temperature-sensitive domestication, artificial spawning and insemination, incubation and fry breeding, specifically, cold water-based clear water stone spots and hot water-based brown spot stone spots are selected as parents, the clear water stone spots are used as female parents, the brown spot stone spots are used as male parents, and the middle water temperature is adapted through gradient temperature-sensitive domestication; stress-resistant feed containing hilsa herring egg source peptide and haematococcus pluvialis astaxanthin ester and a temperature-sensitive blender are matched, a reproductive care agent is supplemented to strengthen sperm and egg performance, and normative spawning induction, insemination and graded cultivation processes are adopted. According to the method, the problems of poor water temperature adaptation and low hatching rate of grouper hybrid sperms and eggs in different temperature areas are solved, the wide-temperature property of filial generations is improved, the method adapts to the water temperature of 18-28 DEG C, the hatching rate, the fry survival rate, the adult fish survival rate and the average weight of single fish are remarkably improved, and technical support is provided for industrial application.

The utility model discloses a short-cut nitrification coupling anaerobic ammonia oxidation integrated reactor, a perforated plate is arranged in the reactor, and a first part for short-cut nitrification and a second part for anaerobic ammonia oxidation are respectively distributed on the upper side and the lower side of the perforated plate; sludge of nitrite bacteria is attached to the interior of the first part through a first filler so as to fix aerobic bacteria, and the first part is connected with an aeration source; anaerobic ammonia oxidizing bacteria are fixed in the second part through a second filler; the size of the filler is greater than the hole size of the perforated plate; the second part is provided with a muddy water backflow and separation module; the muddy water backflow and separation module comprises the muddy water separation area and a sludge backflow area which is integrally connected with the muddy water separation area; a water outlet pipe is connected into the mud-water separation area and is used for separating and discharging aged sludge. The reactor can stabilize the growth of dominant bacteria and improve the denitrification treatment effect.

The present application belongs to the technical field of aquaculture, and particularly relates to a segmented type of pompano breeding method. The segmented type of breeding method provided by the present application supplies nutrition accurately according to the requirements of different growth stages of pompano, and significantly improves the growth speed. Through the optimization of water temperature and light conditions in different stages, the growth speed of pompano is significantly accelerated, thereby shortening the breeding cycle. The addition of licorice powder and melatonin in the feed further enhances the immunity of pompano and reduces the use of drugs. Through the segmented type of breeding, the present application improves the unit yield and survival rate of pompano, and significantly improves the economic benefits.

The utility model discloses a high-ammonia-nitrogen wastewater treatment device based on a zeolite and MBR combined process. The high-ammonia-nitrogen wastewater treatment device comprises an adjusting tank, a biochemical reaction tank, an MBR membrane tank, a reflux tank and a water producing tank, the interior of the biochemical reaction tank is divided into an anoxic zone and an aerobic zone by a first partition plate, a submersible stirrer is arranged in the anoxic zone, an aeration device is arranged in the aerobic zone, zeolite particles are filled in the anoxic zone, a grid mesh for intercepting the zeolite particles is arranged at an overflow port of the aerobic zone, and an MBR membrane assembly is arranged in the MBR membrane tank; the regulating tank is connected with the biochemical reaction tank through a lifting pump and a lifting pipeline, the anoxic zone, the aerobic zone, the MBR membrane tank and the reflux tank are in overflow connection in sequence, the reflux tank is connected with the anoxic zone through a reflux pump and an external reflux pipeline, and the MBR membrane assembly is connected with the water producing tank through a water producing pump and a water producing pipe. The device can improve the treatment efficiency and treatment effect of the ammonia-nitrogen wastewater and improve the effluent quality.

This invention discloses a polypyrrole-coated polyurethane electrospun conductive fiber membrane and its preparation method, belonging to the technical field of conductive composite fiber material preparation. The polyurethane fiber membrane is prepared by electrospinning. The PU fiber membrane is immersed in an ethanol solution of 3-aminopropyltriethoxysilane to introduce active amino groups onto the fiber surface. The fiber membrane is then immersed in a mixed aqueous solution containing FeCl3 and p-toluenesulfonic acid, and a pyrrole aqueous solution is slowly added dropwise under ice bath conditions to allow polypyrrole to grow in situ on the PU fiber membrane, obtaining the PPy@PU conductive fiber membrane. This invention enhances the FeCl3 content by surface coupling APTES onto the PU fiber surface. 3+ The interface pre-adsorption effect is achieved by in-situ oxidation polymerization of FeCl3 / p-TSA system under ice bath conditions, which enables PPy to grow uniformly and stably on the fiber surface, effectively improving the interfacial bonding force between PPy coating and PU fiber, and exhibiting good electrical conductivity stability and comfortable breathability.

The invention discloses a methylamine formamidino perovskite single crystal, a preparation method thereof and an X-ray detector, and belongs to the technical field of perovskite single crystal X-ray detectors. Methyl iodide amine, formamidino hydriodate and lead iodide are used as raw materials, anhydrous acetic acid is used as an additive, growth is carried out in a solvent through a seed crystal method, and the methylamine formamidino perovskite single crystal is obtained. Anhydrous acetic acid and formamidine generate hydrogen-bond interaction, formamidine is pulled to enter crystal lattices, so that phase separation is eliminated, acetate and Pb coordinate to delay formation of a lead-iodine framework, the speed of methylamine and formamidine entering the crystal lattices is balanced, meanwhile, the stability of a methylamine formamidine perovskite precursor solution is improved, stable growth of methylamine formamidine perovskite single crystals is achieved, and the methylamine formamidine perovskite single crystals are obtained. The single crystal has the advantages of high crystallinity, low defect density, large size and favorable X-ray response performance. The methylamine formamidine perovskite single crystal is high in controllability in the growth process, and the preparation method is high in operability, simple and easy to implement, short in preparation period, low in equipment requirement and low in cost.

This invention provides a method for preparing a complete-element organic water-soluble fertilizer from traditional Chinese medicine extracts, belonging to the field of fertilizer technology. The raw materials for preparing the complete-element organic water-soluble fertilizer, in addition to the traditional Chinese medicine extract, include molasses fermentation products, macro-elements, micro-elements, adjuvants, and ethylenediaminetetraacetic acid (EDTA). The addition of the traditional Chinese medicine extract enables the complete-element organic water-soluble fertilizer to achieve high quality and high yield when applied, resulting in higher crop yields and stronger disease resistance, overcoming the shortcomings of existing organic water-soluble fertilizers in terms of quality and yield. The traditional Chinese medicine extract is the key raw material, and its preparation involves extracting active ingredients from powders of Erythrina variegata leaves, Atractylodes macrocephala, Cnidium monnieri, and Centella asiatica. The preparation process incorporates enzymatic hydrolysis using cellulase and pectinase. Furthermore, this invention adjusts the timing of the traditional Chinese medicine additions and the extraction temperature to enhance the high-quality and high-yield effects.

This invention discloses a strain of Maggi-Megaki yeast with amine-reducing and flavor-enhancing capabilities and its applications, belonging to the field of microbial fermentation technology. This invention screened a strain of Maggi-Megaki yeast Y21 from fermented soybean paste, which has the ability to degrade biogenic amines. This strain can completely degrade tryptamine, phenylethylamine, putrescine, cadaverine, spermidine, and spermine; simultaneously, it also has a strong degradation effect on histamine and tyramine, with degradation rates reaching 69.58% and 65.32%, respectively. Using the Maggi-Megaki yeast Y21 described in this invention for inoculation and fermentation can significantly reduce the content of various biogenic amines in fermented soybean paste under low-to-medium salt conditions, especially showing outstanding removal effects on histamine, tyramine, phenylethylamine, and polyamine biogenic amines, increasing the total amount of volatile flavor compounds, and is suitable for the safe production of low-salt fermented foods.

An unmanned livestock farming system and method based on air-ground collaboration is proposed. This invention constructs a multi-agent collaborative perception and intervention system in the air and on the ground, relying on an improved artificial potential field method to achieve precise autonomous farming planning. It also innovatively integrates UAV-based active noise reduction technology to specifically eliminate auditory stressors in livestock caused by rotor noise during operations. A comprehensive stress index is calculated by fusing thermal imaging temperature measurement with herd movement entropy values, establishing a real-time stress closed-loop control mechanism. In captivity scenarios, a three-level perception system is constructed using fixed RGB-infrared binocular cameras and a track-based inspection robot to achieve early health warnings and estrus monitoring of individual feeding, rumination, body temperature, and behavioral abnormalities. This invention also introduces reinforcement learning and proximal policy optimization algorithms based on human feedback. Using professional feedback from farm workers as optimization signals, the system performs online fine-tuning and iteration of core parameters in parallel in the background, achieving continuous adaptive evolution of farming and captivity management strategies. Simultaneously, it incorporates a computing power / network degradation mode and a federated learning privacy protection architecture to balance system robustness, data security, and low-stress farming effects. This invention solves the industry problems of traditional unmanned livestock technology, such as large stress interference, poor adaptability, rigid models, and inability to iterate and optimize autonomously. It realizes intelligent unmanned breeding and pen management with high efficiency, low stress, high adaptability, and sustainable optimization.

The invention relates to the technical field of biological medicines, in particular to a preparation method and application of long-acting erythropoietin. Specifically, the invention provides the preparation method of the long-acting erythropoietin, which comprises the following steps: activating cells, and recovering a CHO cell strain capable of expressing recombinant human erythropoietin; cell culture: the recovered CHO cells are added into a CHO fermentation culture medium to be cultured, the temperature is controlled to be 36-38 DEG C, the pH is 6.8-7.2, and the dissolved oxygen content is 40-60%; protein purification: purifying EPO in the culture solution; wherein the CHO fermentation culture medium comprises a basic culture medium and an additive, the additive comprises a composition A, the composition A is composed of fatty acid and lecithin, the concentration of the fatty acid is adjusted to be 2-6 mg / L, and the concentration of the lecithin is adjusted to be 1-3 mg / L. By adopting the technical scheme, a proper amount of fatty acid and lecithin components are supplemented into the additive of the CHO fermentation culture medium, so that the survival rate of CHO cells during culture in a reactor and the stability of protein expression can be improved.

A method for preparing nickel powder through electrolysis of nickel sulfate waste liquid in one step comprises the steps that the nickel sulfate waste liquid is diluted to a certain concentration by controlling the reduction degree of Ni < 2 + > under different cathode conditions, and different nickel electrolysis products are selectively prepared in the diluent; ti plated TaO2 / I rO2 alloy is used as an anode, a Ti sheet is used as a cathode, electrolysis is carried out under the conditions that the current density is 30-2000A / m < 2 >, the electrolyte temperature is 20-60 DEG C and the nickel ion concentration is 0.025-1.0 mo l / L, and nickel powder is obtained through electrodeposition on the cathode after electrolysis is finished; a circulating pump is used for recycling waste liquid; the electrolytic nickel powder prepared through the method is simple in required equipment, short in technological process, mild in condition, low in production cost, high in efficiency, environmentally friendly, suitable for one-step preparation of the nickel powder through the high-impurity nickel sulfate waste liquid and suitable for one-step preparation of the electrolytic nickel powder through the pure nickel sulfate solution. The method is especially suitable for environmental protection enterprises of nickel-containing waste liquid.

This invention provides a method for treating high-salinity wastewater using *Chaetoceros muelleri*, belonging to the field of water treatment: *Chaetoceros muelleri* strains in a preservation state are transferred to a nutritionally complete and suitable standard f / 2 culture medium for activation culture under standard f / 2 conditions; actual marine aquaculture wastewater is used as the treatment target, and after filtering out impurities, the salinity of the wastewater is adjusted to 30-35‰; the *Chaetoceros muelleri* treated in step S1 is inoculated into the high-salinity wastewater at 0.05–0.2 g / L (dry weight), and the lighting system is activated after inoculation; during system operation, the algal biomass and changes in ammonia nitrogen, total nitrogen, and phosphate in the water are monitored regularly; when the pollutant removal rate remains stable at a high level and the algal biomass continues to increase, the system can be considered to be operating stably. This invention efficiently removes nitrogen, phosphorus, and other pollutants from wastewater using *Chaetoceros muelleri* technology, while maintaining stable algal growth, thus improving wastewater treatment efficiency and resource utilization rate.

The application discloses a kind of semiconductor silicon single crystal growth process V / G value prediction and quality evaluation method, belong to the technical field of preparation and intelligent process control of semiconductor material;Including the following steps: obtaining process parameter time series data;Its fragment division is generated continuous data unit, and time series dependence modeling is generated time series characteristic sequence;While it is carried out multi-scale decomposition and obtains high-frequency and low-frequency component, corresponding frequency domain characteristic sequence is generated by fragment division;Time series and frequency domain characteristic sequence are spliced into time-frequency fusion characteristic sequence;Based on the sequence, cross-domain correlation coding and prediction mapping are carried out, and V / G value prediction sequence is output;Finally, based on the prediction sequence, trend category and process quality grade are determined;The application realizes the high-precision trend prediction of V / G value and the intelligent online evaluation of process quality.

This utility model discloses a heat preservation device for flower cultivation, including a heat preservation box. The heat preservation box includes a storage cavity and a water cavity. Water is placed inside the water cavity, and electric heating plates are fixedly connected to both sides of the inner wall of the water cavity. This utility model adopts a structural design in which the heat preservation box has a storage cavity and a water cavity. The water in the water cavity is heated by the electric heating plates. Through the thermal conductivity of water, heat can be evenly transferred to the left, right, top, bottom, and back of the storage cavity, which to a certain extent avoids the problem of uneven local temperature caused by traditional single biological lamp heating. With the heat preservation box and the heat preservation cover plate fixedly connected to the surface of the heat preservation box, a multi-layer heat preservation structure is formed, which can significantly slow down the transfer rate of internal heat to the outside. This device has the advantages of good heat preservation effect, maintaining a suitable internal temperature for a long time, and flexible adjustment of the internal temperature of the device.

The invention relates to the technical field of monocrystalline silicon crystal growth, in particular to a crystal pulling method suitable for a single heater thermal field. A crystal pulling method suitable for a single heater thermal field comprises the following steps: when material melting is completed and crystal pulling is carried out, controlling the upper edge of a heater to be above the upper edge of a crucible, and adjusting the vertical distance between the upper edge of the heater and the upper edge of the crucible to be 50-150mm; when crystal pulling enters an equal-diameter stage, along with growth of the crystal, the height of the heater is adjusted, so that the vertical height of the surface of the silicon melt and the upper edge of the heater is gradually increased. According to the crystal pulling method, a single heater is adopted, the number of heaters and matched parts are reduced, the thermal field structure is greatly simplified, and therefore the manufacturing cost of a thermal field is reduced; meanwhile, the bottom heater is omitted, so that invalid work of the bottom heater in the crystal pulling process is avoided, and the overall energy consumption is reduced.

This invention provides exosomes derived from rice, their preparation method, and applications. The exosomes have a bilayered membrane spherical structure with a particle size ranging from 20 to 1000 nm. These exosomes are obtained from rice callus tissue and possess high biocompatibility, stability, and sustainable mass production characteristics. Furthermore, experiments have demonstrated that these exosomes have anti-aging, cell regeneration and tissue repair promotion, and protective functions, and can also significantly improve cell absorption efficiency and the delivery efficiency of active ingredients such as peptides.

The application provides a GaN-based light-emitting diode epitaxial structure and a preparation method thereof, wherein a Zn source is introduced as a surface activator during the growth of a P-type AlGaN electron blocking layer, a P-type AlGaN electron blocking layer structure with a gradient distribution of Zn concentration along the direction of the P-type AlGaN electron blocking layer is constructed, and specifically, through the core role of the Zn surface activator and the innovative design of the gradient distribution of the Zn concentration, the valence band Ev is smoothly and non-peaked along the whole process, and the hole injection is smooth along the whole process under the premise of ensuring that the conduction band Ec is smoothly and non-peaked and the strong electron blocking capability is not lost.

This invention discloses a denitrifying polyphosphate-accumulating bacterium resistant to sulfonamide antibiotics and its application in nitrogen and phosphorus removal. The denitrifying polyphosphate-accumulating bacterium is *Acinetobacter junii* BWFJF1, with accession number GDMCC NO: 63199. This strain exhibits excellent resistance to sulfonamide antibiotics, enabling stable growth in wastewater containing high concentrations of sulfonamides while maintaining efficient nitrogen and phosphorus removal. This strain effectively overcomes the problem of low nitrogen and phosphorus removal efficiency of traditional microorganisms under sulfonamide antibiotic stress, providing a new microbial option for treating sulfonamide-contaminated wastewater.

This utility model discloses a green landscape climbing vine support, comprising: a base plate, horizontally set on the ground; a top plate, horizontally set above the base plate; and a support frame, set between the base plate and the base plate. The support frame includes multiple support rods, each support rod being hollow and forming a water flow channel inside. Several nozzles connected to the water flow channel are evenly distributed on each support rod. This utility model has the following advantages and effects: by setting a support frame with a spray function, it can provide support for climbing plants and utilize evenly distributed nozzles to achieve uniform watering of climbing plants at different growth heights, ensuring that climbing plants at different heights and positions receive uniform water. This solves the problem of difficult manual watering after climbing plants grow to a higher position, ensuring the landscape aesthetic value and sustainable growth of climbing plants.

The invention belongs to the field of semiconductor materials and devices, and particularly relates to an electron beam evaporation method of a cadmium telluride film, which realizes surface passivation of tellurium-cadmium-mercury by depositing the cadmium telluride film on the tellurium-cadmium-mercury film. The method specifically comprises the steps that the evaporation rate is controlled by controlling the light spot size and the scanning speed of electron beams; and comparing the passivation effects of cadmium telluride with different evaporation rates on tellurium, cadmium and mercury. The technical problem that in the prior art, the electron beam growth rate of the cadmium telluride film is difficult to control is solved, and high-quality passivation of the tellurium-cadmium-mercury film is achieved. The method is suitable for materials with low thermal conductivity by using electron beam evaporation.

The invention relates to the technical field of tree planting equipment, and provides a multifunctional automatic tree seedling planting vehicle which comprises universal wheels, a third motor, an eighth aluminum profile, a drilling device, a rotating disc device, a solar panel rotating device, a soil covering device and a watering device. The drilling device comprises a second stepping motor, a sliding motor base, a recognition camera and a drill bit. The second stepping motor and the recognition camera are installed on the sliding motor base. The turntable device comprises an upper turntable, a lower turntable and a first motor; the solar panel rotating device comprises a solar panel, a lily hinge rotating shaft, a first connecting rod, a second connecting rod and a long shaft; the other end of the first connecting rod is connected with a second connecting rod; the other end of the second connecting rod is mounted on the long shaft; the soil covering device comprises a second motor, a third connecting rod, a fourth connecting rod and a connecting plate. According to the invention, continuous automatic operation of drilling, seedling placing, soil covering and watering can be realized, so that the operation efficiency is improved.