34results about How to "Stable growth" patented technology

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 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 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.

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.

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.

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.

The utility model discloses production equipment for manufacturing a diamond substrate, which comprises MPCVD equipment, a positioning mechanism is fixedly arranged at the center of the upper surface in a reaction cavity of the MPCVD equipment, and the upper surface of the positioning mechanism can be used for placing the substrate and clamping the substrate, so that the substrate can be placed on the upper surface of the positioning mechanism in the operation process of the MPCVD equipment. The situation that the substrate cannot be located at a proper growth position due to substrate displacement caused by plasma impact generated by gas flow and microwave excitation and the like can be avoided. Through the design of the positioning mechanism, various substrates with different sizes can be clamped, both small-size test substrates and large-size industrial production substrates can be stably clamped, the universality and flexibility of the equipment are improved, and the production efficiency is improved. And the cost and time for replacing the positioning device due to the size change of the substrate are reduced.

The application relates to the technical field of tea processing, and discloses a tea-fruit composite flavor fermented tea and a preparation method thereof. The method comprises the following steps: selecting tea base and performing steam softening and moisture adjusting treatment; crushing fruit raw materials, adding pectinase and cellulase to perform enzymolysis, and obtaining enzymolysis fruit pulp; mixing the tea base, the enzymolysis fruit pulp and a composite fermentation inoculum composed of lactobacillus plantarum, saccharomyces cerevisiae and eurotium cristatum, sequentially performing early micro-aerobic fermentation and late oxygen-controlled solid-state fermentation, and then performing low-temperature fragrance fixing and drying to obtain the tea-fruit composite flavor fermented tea. The application can promote the synergistic conversion of tea contents and fruit aroma precursor substances, the obtained product has tea aroma, fruit aroma and fermentation aroma, the taste is coordinated, the aroma is natural and persistent, the quality is stable, and the product is suitable for large-scale production.

This invention discloses a method for transforming and improving the quality of inefficient ecological forests in the Loess Plateau, belonging to the field of ecological forest management technology. The method first determines the type of inefficient ecological forest, classifying it into four categories: overly sparse, overly dense, aging, and restricted. Then, it matches corresponding transformation procedures based on the type: for overly sparse stands, replanting and land preparation for rainwater harvesting are carried out; for overly dense stands, gradient thinning is implemented, and soil moisture and tree growth are monitored; for aging stands, pruning, deep burial of litter, and combined rainwater harvesting and water conservation are employed; for restricted stands, rainwater infiltration holes are created, branches are pruned, and backfilling is used to increase fertility. This invention specifically addresses the problems of unbalanced forest density, tree aging, soil and water nutrient deficiency, and restricted stand growth in the Loess Plateau, improving stand stability and health, and enhancing soil water environment and nutrient status. The technology is easy to operate, has low transformation costs, and is suitable for large-scale transformation of various types of inefficient ecological forests in the Loess Plateau.

The application relates to a large-size yttrium lithium fluoride single crystal growth system and process, and belongs to the technical field of artificial crystal growth. The system comprises a furnace body, a crucible, a temperature field subsystem, a vacuum subsystem, a mechanical transmission subsystem, an automatic growth control subsystem and a main control subsystem. The single crystal growth system provided by the application is cooperatively operated by the temperature field subsystem, the vacuum subsystem, the mechanical transmission subsystem and the automatic growth control subsystem under the unified coordination of the main control subsystem, so as to jointly create a crystal growth environment which can be accurately controlled and is stable and reliable. Through a pretreatment process comprising raw material pre-melting, cleaning and weighing and supplementing of raw materials, and in combination with the variable-speed rotation technology of the crucible in the growth process, the purity and the component uniformity of the melt are significantly improved.

The application discloses a sensor for detecting thiophene sulfides in diesel oil and a preparation method and application thereof. The sensor comprises a substrate, the surface of the substrate is etched with an interdigital conductive layer, and the interdigital part is provided with molybdenum disulfide nanomaterial or ZnS-ZnO shell-core structure nanorod material. The sensor for detecting thiophene sulfides in diesel oil is prepared by growing zinc sulfide-zinc oxide shell-core structure nanorods on the substrate with an interdigital conductive layer on the surface by using a hydrothermal growth method. The sensor can stably exist in diesel oil for a long time. The sensitive material can interact with thiophene sulfides in diesel oil, influence the charge density at the interdigital part, and thus change the capacitance. The change of the sensor capacitance is detected by LCR, so as to detect the concentration of thiophene sulfides in diesel oil. The application has the advantages of low preparation cost, simple preparation method, high portability of the sensor, good sensitivity, and the like, and can realize rapid and accurate measurement of thiophene sulfides in diesel oil.

The utility model discloses a kind of lawn laying restraint structure for special-shaped cone, including geogrid and connecting piece, geogrid includes a plurality of first grid bar and second grid bar, connecting piece includes lower clamping plate and upper clamping plate, and lower clamping plate and upper clamping plate are clamped in geogrid;Wherein, the upper portion of upper clamping plate is equipped with pressing plate, and a plurality of anchor rods for piercing lawn and anchoring in base soil layer are fixed symmetrically on pressing plate.The utility model is crossed by the first grid bar and second grid bar of geogrid, clamped in intersection point by lower clamping plate and upper clamping plate, and grid bar is contained in cross groove, and the connection of cooperation bolt can form firm fixing to grid bar, effectively avoid displacement or loosening of grid bar in the process of restraint.

This invention discloses a method for efficient shrub planting in photovoltaic bases in high-altitude Gobi desert areas, belonging to the field of shrub planting technology. The method includes: improving the soil in the planting area to construct a root zone environment suitable for the colonization of cold-resistant mycorrhizal fungi; establishing mycorrhizal induction conditions through bio-fermentation to form a mycelial network; adding a mineral water-retaining matrix to the root zone and applying low-frequency micro-vibration to promote mineral particle rearrangement and form a continuous capillary moisture-conducting network; setting up a deep moisture-conducting structure and an upper and lower heat-insulating structure in the root zone, and combining drip irrigation for water and fertilizer management to achieve the synergistic construction of the micro-ecological environment in the shrub root zone. This invention improves the rapid colonization capacity of mycorrhizae and the continuous transport capacity of deep water through the synergistic regulation of the mycorrhizal network, capillary moisture-conducting network, and root zone thermal environment, enhances the root system's absorption efficiency of water and nutrients, improves the temperature and humidity environment in the root zone, increases the survival rate of shrubs, shortens the seedling establishment period, and improves the vegetation restoration efficiency of photovoltaic bases in high-altitude Gobi desert areas.

This invention discloses an adsorbent based on MOF materials and its processing technology, belonging to the field of adsorbent technology. The process includes the following steps: adding zirconium-based MOF-Fe3O4 to DMF, ultrasonically mixing, adding terephthalaldehyde, mixing, adding acetic acid, reacting at room temperature for 48-72 h, magnetically separating the precipitate, washing, and vacuum drying to obtain aldehyde-based zirconium-based MOF-Fe3O4; placing chromium nitrate nonahydrate and terephthalic acid in DMF, stirring and mixing, adding modified SBA-15, reacting at 180-220℃ for 12-24 h, cooling and filtering, washing and drying to obtain chromium-based MOF-SBA-15; adding aldehyde-based zirconium-based MOF-Fe3O4 and chromium-based MOF-SBA-15 to ethanol, adding acetic acid, reacting at room temperature, magnetically separating, washing and drying to obtain the MOF-based adsorbent. The MOF-based adsorbent prepared by this invention can be applied to the concentration and treatment of typical industrial VOCs waste gas.

The invention relates to a gas sensing composite material, a preparation method and a gas sensor, and belongs to the technical field of gas sensors. The gas sensing composite material is composed of an alumina carrier, hydrogen-substituted graphdiyne and a ZIF-8 metal organic framework. The hydrogen-substituted graphdiyne is loaded on the surface of the aluminum oxide carrier to form a hydrogen-substituted graphdiyne-aluminum oxide composite carrier, and the ZIF-8 metal organic framework directly grows on the surface of the hydrogen-substituted graphdiyne-aluminum oxide composite carrier in a discrete particle form; according to the structure of the gas sensing composite material, organic combination of a molecular sieving function of ZIF-8, a rapid charge conduction function of hydrogen-substituted graphdiyne and a structure stabilization function of aluminum oxide is realized.