772 results about "Photosynthesis" patented technology

The invention relates to the technical field of microorganisms, in particular to a disease-resistant, growth-promoting and yield-increasing strain and a microbial agent and application thereof. The strain is a strain bacillus velezensis NB21 (CCTCC (China Center for Type Culture Collection) NO: M2024979) which is found autonomously; the strain can grow at low temperature, is strong in ecological environment adaptability, can be used for preparing a single microbial agent or a compound microbial agent, and can also be used for forming a composition with other functional organic and inorganic substances. The prepared microbial agent can significantly prevent and treat diseases, promote root development of crops such as rice and corn, enhance photosynthesis, improve system resistance, increase crop yield, enhance nutrient supply and improve soil micro-ecology. The strain is unique, strong in colonization ability and diversified in function, the prepared microbial agent fermentation production technology is mature, the cost is low, the application range is wide, the yield increasing and quality improving effects are outstanding, and the microbial agent has good application prospects.

The invention relates to the technical field of carbon flux monitoring, and particularly discloses a carbon flux monitoring method and system based on soil drought remote sensing data, and the method comprises the steps: respectively collecting soil humidity remote sensing data and a soil vegetation coverage remote sensing image through a microwave sensor and an optical remote sensing sensor; performing resampling on the soil humidity remote sensing data and the soil vegetation coverage remote sensing image to realize spatial resolution alignment, and performing spatial distribution feature extraction on the soil humidity remote sensing data and the soil vegetation coverage remote sensing image after spatial alignment by adopting a deep learning algorithm; and pixel-level significance enhancement and fusion processing are carried out on the captured soil humidity distribution characteristics and vegetation distribution characteristics, so that nonlinear modeling of a dynamic influence mechanism of the soil drought degree on the vegetation growth state is realized, and intelligent estimation of the carbon flux is realized on the basis. In this way, the nonlinear regulation and control effect of soil drought stress on vegetation respiration and photosynthesis can be effectively described, and the efficiency and coverage range of carbon flux monitoring are improved.

Systems and methods for developing and applying photosynthetic cellular substances to a human or animal for medical, therapeutic or cosmetic uses are provided. Photosynthetic cells, such as algal cells, can be used in these substances to provide the ability to continuously generate oxygen when exposed to a light source or other oxygen-generating trigger. The substances can be developed as a standalone liquid, gel or cream, or embedded within a bandage, mesh, scaffold or other structure with a light source to promote oxygen production. The substances can be applied topically for medical, therapeutic or cosmetic treatments, or injected internally for generation of oxygen within one or more parts of the body.

The invention discloses nano-engineered microalgae for photoimmunotherapy of melanoma and a preparation method of the nano-engineered microalgae. The preparation method comprises the following steps: S1, respectively putting tannic acid, potassium carbonate, sodium citrate and HAuCl4. 3H2O into water to prepare a tannic acid solution with the concentration of 4.3 mg / mL, a potassium carbonate solution with the concentration of 20.7 mg / mL, a sodium citrate reduction solution with the concentration of 0.7 mg / mL and a HAuCl4 solution with the concentration of 10.0 mg / mL; s2, dissolving a tannic acid solution and a potassium carbonate solution in the sodium citrate reduction solution to obtain a mixed solution; s3, the mixed solution is heated under stirring, a HAuCl4 solution is dropwise added, stirring continues, and AuNP is obtained; and S4, mixing the AuNP obtained in the step S3 with the microalgae PCC 7942, standing, incubating, and centrifugally washing, so as to obtain the nano-engineered microalgae PCC-coated AuNP. The functionalized microalgae drug delivery system (PCC-coated AuNP) prepared by the invention has the performance of respectively generating O2 and H2 through photosynthesis and photocatalytic reaction under the irradiation of 635 nm red light.

The invention belongs to the technical field of carbon sink evaluation, and discloses a typical weather-oriented tea garden carbon sink dynamic profit and loss evaluation method and system. Historical meteorological information and historical carbon sink monitoring information of the tea garden are collected, and a typical weather type library of the tea garden is constructed; determining a typical weather type corresponding to the current day of the tea garden, and calculating a carbon sink fixed amount and a carbon sink output amount of the tea garden; generating a correction factor for correction according to the management activity information of the tea garden to obtain a net carbon sink value; generating a total score based on comprehensive analysis of the net carbon sink value, and evaluating the carbon sink profit and loss condition of the tea garden; the carbon sink meteorological influence parameters before and after the monitoring time point are collected for comprehensive analysis to calculate the carbon sink fixed quantity and the carbon sink output quantity, calculation deviation caused by parameter fluctuation at a single time point can be avoided, and therefore the method better fits the continuous physiological process of photosynthesis / respiration of the tea trees, and the detection accuracy is improved. And the calculation result of the carbon sink fixed quantity / output quantity is closer to the actual condition.

The invention provides a preparation method of microalgae gel balls for water treatment, and relates to the field of water treatment, and the preparation method comprises the following steps: step S1, preparing a composite suspension, step S2, carrying out primary crosslinking to form balls, step S3, carrying out secondary crosslinking, step S4, carrying out in-situ enhancement, and step S5, coating. According to the method, microalgae is subjected to compound modification to obtain gel beads, and the finished product gel beads are obtained through coating, so that the swelling resistance and mechanical strength of the gel beads are improved, and the situation that a compact gel network and a multi-layer coating structure hinder nutrient substances, carbon dioxide and the like in a water body from diffusing to microalgae cells is avoided; the photosynthesis efficiency and pollution degradation capability of the microalgae are ensured, and the water treatment efficiency of the microalgae is improved.

The present disclosure relates to engineered RNA m6A demethylases with disrupted low complexity regions (LCRs) for expression in plants, as well as recombinant DNA encoding the engineered RNA m6A demethylases, vectors encoding the recombinant DNA, plants including the engineered RNA m6A demethylases, and method of improving the growth of plants using the engineered RNA m6A demethylases, including increased root growth and elevated photosynthesis. The present disclosure further relates to methods of improving growth of a plant, including increased root growth and elevated photosynthesis, by modifying endogenous ALKBH5 homolog genes to include disrupted LCRs, and plants produced by those methods.

The invention belongs to the technical field of catalysts, and particularly relates to a metal-covalent organic framework photocatalyst for photocatalytic CO2 reduction as well as a preparation method and application of the metal-covalent organic framework photocatalyst. According to the invention, a novel covalent organic framework material with symmetrical metal ion coordination is firstly synthesized, and the covalent organic framework material is found to have obviously higher performance for photocatalytic CO2 reduction compared with a single COF (Covalent Organic Framework). The invention further designs and synthesizes a covalent organic framework material with asymmetric metal ion coordination, and finds that the photocatalytic CO2 reduction performance of the covalent organic framework material is far better than that of a covalent organic framework material with symmetric coordination, so that an original solution can be provided for designing a new generation of high-performance and low-cost artificial photosynthesis catalyst.

The invention relates to the technical field of forestry data processing, in particular to a landscaping maintenance system and method based on big data, and the system comprises a water potential monitoring module, a block division module, a pruning adjustment module, a man-hour scheduling module and an anomaly recognition module. According to the method, by tracking the consistency of soil moisture fluctuation in real time, accurately analyzing the dynamic influence of the root system type and the soil layer structure on water absorption and combining plant evapotranspiration physiological indexes and meteorological condition differences to finely divide water demand grades, efficient matching of water supply and plant physiological statuses is achieved; the pruning period is dynamically adjusted according to the actual change of plant photosynthesis and tissue expansion, the coordination error between maintenance working hour calculation and geographic path planning is effectively reduced, the continuity and timeliness of illumination change abnormal response recognition are improved, the accuracy and refinement level of garden plant maintenance decision making are remarkably improved, and the method is suitable for popularization and application. And the scientific decision-making capability, the space adaptive capability and the intelligent response level of greening maintenance management are improved.

The invention discloses a dual-emission carbon dot nano-enzyme, a preparation method thereof and application of the dual-emission carbon dot nano-enzyme in enhancing photosynthesis and salt stress resistance of crops, and relates to the field of nano-material technologies and agricultural engineering.The dual-emission carbon dot nano-enzyme is prepared by taking glutathione and formamide as precursors through ultrasonic treatment, microwave heating, purification and drying; the double-emission carbon dots have emission in blue light and red light ranges, are well overlapped with chloroplast absorption, and can be used as a light converter to promote photosynthesis of crops, improve the utilization rate of solar energy and enhance photosynthesis of crops; in addition, the compound has excellent SOD-like activity, and can improve germination of crop seeds and growth of seedlings under salt stress.

The invention belongs to the technical field of black and odorous water treatment, and particularly relates to a method for repairing and treating rural black and odorous water. According to the invention, aquatic plants, aquatic animals and microbial communities are configured in the system, and hydrodynamic optimization is combined, so that an underwater forest ecological system with self-maintenance capability is constructed, biological self-purification of the black and odorous water body and long-acting stability of the ecological system are realized, and the system is suitable for black and odorous water body treatment of rural rivers and ponds. The ecological balance of a water body is maintained through closed-loop feedback of excessive plankton, enhancement of fish ingestion, promotion of plant growth by excrement and absorption of excessive nutritive salt, meanwhile, oxygen is supplied through photosynthesis of submerged plants, and zero external energy consumption is achieved by combining stepped oxygen transfer without external aeration. In addition, the raw material of the carrier is derived from agricultural wastes, so that the treatment cost is reduced, and the recycling of rural solid wastes can be effectively promoted.

The invention relates to the technical field of ecological breeding of scylla paramamosain and protection and restoration of mangrove forests. The invention provides a method for culturing scylla paramamosain by using mangrove forest, which comprises the following steps: (1) carrying out simple engineering transformation on the basis of a coastal wetland traditional culture pond, constructing a planting island in the middle of the culture pond, and reserving an annular tidal creek between the planting island and the periphery of the culture pond; (2) planting mangrove plants in the planting island to form a man-made forest; (3) small aquatic plants are planted at the bottom of the artificial forest, and large algae are planted in the annular ditches; and (4) putting the young blue crabs into the culture pond, and carrying out daily management until the blue crabs are harvested. The shellfish is used for providing main food supply for the blue crabs, and meanwhile water is purified; excrement of the blue crabs can be fed back to promote growth of mangroves, algae, mussels and the like; large algae can perform photosynthesis at the bottom of the pond to increase dissolved oxygen in water, and small sea grass is placed in the planting island to make up for the defect of low coverage of newly planted mangrove forest plant seedlings.

The invention provides a low-power-consumption long-endurance water affair multi-parameter water quality pollution on-line monitoring method, and relates to the technical field of water quality monitoring, which comprises the following steps: receiving water quality parameter original data collected by a sensor, extracting data components by using wavelet transform, establishing an average daily variation curve, calculating a relationship among parameters, and constructing a photosynthesis activity index; the monitoring frequency of the sensor is dynamically adjusted, the monitoring efficiency is optimized, and meanwhile, collected data are combined to generate water quality pollution monitoring data and are transmitted to a monitoring terminal. Therefore, the equipment energy consumption is effectively reduced, the endurance time is prolonged, the relevance among water quality parameters is fully excavated, the monitoring precision is improved, and particularly, the water body pollution condition can be efficiently evaluated in the algae pollution outbreak period.

The invention discloses oyster shell-starch sludge carbon quantum dots and application thereof as a pepper growth promoter, and belongs to the technical field of organic fertilizers, soil improvement and waste utilization. Comprising the following steps: crushing oyster shells, mixing the crushed oyster shells with starch sludge, performing hydrothermal reaction, centrifuging, taking supernate, dialyzing, freezing and drying. The promoter can be used for enhancing photosynthesis of pepper leaves, promoting growth and yield increase of pepper in saline-alkali soil, and can be used as a promoter for growth and yield increase of pepper in saline-alkali soil. The plant height, stem diameter, leaf length, leaf width and fresh weight of the pepper treated by the oyster shell starch sludge carbon quantum dots are obviously improved. The maximum quantum yield, the actual photosynthesis efficiency, the absolute electron conductivity and the non-photochemical quenching coefficient of pepper plants can be obviously improved. The plant height, stem diameter, leaf area and single plant yield of pepper plants can be obviously improved when the fertilizer is applied to the field. After the calcium-doped carbon quantum dots are treated, the growth and development of the saline-alkali soil peppers are promoted, the photosynthesis of the saline-alkali soil peppers is promoted, and the yield of the peppers is increased.

The invention relates to the technical field of fertilizers, in particular to charcoal-based nano-selenium as well as a preparation method and application thereof. The preparation method comprises the following steps: putting biochar into a selenium source solution, and adsorbing to obtain biochar adsorbed selenium; and mixing the biochar adsorbed selenium with a reducing agent, and carrying out a reduction reaction under a dark condition to obtain the biochar-based nano-selenium. Biochar is used as a carrier, sodium selenate is used as a selenium source, glucose is used as a reducing agent, and Se < 4 + > adsorbed on the surface of the biochar is reduced into Se < 0 >, so that the novel biochar-based nano-selenium fertilizer is prepared. The biochar-loaded nano-selenium fertilizer can synergistically improve the tomato yield and nutritional quality through multiple mechanisms of enhancing photosynthesis, promoting growth, efficiently enriching selenium elements and the like, and provides a reliable technical approach for developing efficient selenium fertilizers and producing selenium-enriched agricultural products.

The utility model discloses a grape planting device, which belongs to the technical field of plant planting and comprises a support structure arranged around grape plants. The light-transmitting film is arranged on the bracket structure; the top structure comprises a water leakage opening capable of being closed, a water dripping guiding assembly, a water collecting assembly and a linkage assembly, the water collecting assembly is connected with the linkage assembly, the linkage assembly is connected with the water leakage opening, and the water dripping guiding assembly is arranged on the inner side of the top structure. The support structure arranged around the grape plants is simple in structure, reasonable in cost and convenient to disassemble and reuse; the light-transmitting film arranged on the support structure can meet the photosynthesis requirement; the top structure comprises a water leakage opening capable of being closed, a water dripping guiding assembly, a water collecting assembly and a linkage assembly, the water collecting assembly is connected with the linkage assembly, the linkage assembly is connected with the water leakage opening, the water dripping guiding assembly is arranged on the inner side of the top structure, part of rainwater can be guided to drip into the grapes, and the purpose of controlled water supplementing is achieved.

The invention discloses a condensation brine desalination system for a greenhouse. The condensation brine desalination system comprises a condensation system, a heat storage system, a heat supply system, a power supply system, a water supplementing system and the greenhouse. When the system works, the compound paraboloid condenser gathers sunlight, then the sunlight is transmitted in a wave band mode through the frequency division glass, low-wave-band light drives photovoltaic power generation, and high-wave-band light is used for saline water interface evaporation; water vapor generated in the salt water desalination process is condensed by the condensing device to generate fresh water, and then the fresh water is introduced into the greenhouse, so that proper humidity and temperature in the greenhouse can be maintained while the fresh water required by irrigation is obtained; the condensation device recovers condensation heat, the condensation heat is stored through the heat storage system, and heat is supplied to the greenhouse through the buried pipe when the temperature is low at night. When sunlight is insufficient, the storage battery supplies power to the LED lamp in a light supplementing mode, and photosynthesis of plants is guaranteed. The system is suitable for regions lacking fresh water resources but sufficient in saline water and brackish water, and has the characteristics of self-sufficiency, high scale adaptability, low energy consumption and the like.

The utility model discloses a tomato cultivation vine frame, which belongs to the technical field of vine frames, and particularly comprises a base plate assembly, a frame body assembly arranged at the top of the base plate assembly, a water supply assembly and a spraying assembly arranged at the top of the water supply assembly, the base plate assembly comprises a cultivation frame, a partition plate is arranged on the inner wall of the cultivation frame, and the spraying assembly is arranged at the top of the water supply assembly. According to the tomato cultivation vine frame, sunlight is not occupied in the multi-plant planting process, hook assemblies are arranged on the inclined supporting rods, the grabbing combining force of tomato vines is increased in the climbing process of the tomato vines, and the climbing process of the tomato vines is smoother and more stable; secondly, a sliding sleeve is arranged on a round rod, so that a spraying plate with nozzles at multiple angles can be adjusted according to the growth height of tomato vines, a water source can fall down from a high position under the condition that irrigation can be guaranteed, cooperation is conveniently carried out under the condition that leaf cooling and leaf surface pollutant cleaning are needed, and the photosynthesis efficiency is prevented from being influenced; vines can climb and grow more easily in tomato cultivation.

The utility model relates to a plant lamp capable of emitting light from three sides, which belongs to the technical field of lamps and is provided with a lamp shell, an accommodating cavity is arranged in the lamp shell, a mounting transverse plate, a left mounting vertical plate and a right mounting vertical plate are arranged in the accommodating cavity, and the left mounting vertical plate and the right mounting vertical plate are arranged on two opposite sides of the mounting transverse plate. Illumination assemblies used for simulating sunlight are arranged on the installation transverse plate, the left installation vertical plate and the right installation vertical plate, in the using process, the illumination assemblies used for simulating sunlight can provide spectrums suitable for plant growth, so that photosynthesis of plants is promoted, the plants can obtain illumination from multiple directions through the design of three-face light emitting, and the plant growth effect is improved. Therefore, the uniformity of illumination is improved, the plants can absorb light energy more sufficiently, the photosynthesis efficiency is improved, the plants can grow uniformly in all directions, and growth inclination or abnormal shape caused by single-side illumination is avoided.

Systems and methods for developing and applying photosynthetic cellular substances to a human or animal for medical, therapeutic or cosmetic uses are provided. Photosynthetic cells, such as algal cells, can be used in these substances to provide the ability to continuously generate oxygen when exposed to a light source or other oxygen-generating trigger. The substances can be developed as a standalone liquid, gel or cream, or embedded within a bandage, mesh, scaffold or other structure with a light source to promote oxygen production. The substances can be applied topically for medical, therapeutic or cosmetic treatments, or injected internally for generation of oxygen within one or more parts of the body.

The invention relates to the technical field of agricultural planting, and discloses a convenient-to-adjust agricultural planting device which comprises a base, universal wheels are fixedly connected to the bottom of the base, a motor is fixedly connected to the top of the base, a supporting seat is fixedly connected to the top of the base, a lifting mechanism is arranged at the top of the base, and a filtering mechanism is arranged at the top of the base. According to the agricultural seedling planting device, seedlings planted in the planting plate can move at different heights, the sunlight irradiation area of agricultural seedlings is increased, the seedlings can better perform photosynthesis, the growth environment of the seedlings can be optimized, the survival rate and the growth speed of crops can be increased, the planting plate can deviate by an angle, and the planting device is convenient to use. The contact area between seedlings and sunlight can be increased, the flexibility of the device is improved, and the survival rate of planted seedlings is increased.

The invention discloses a three-color composite mulching film and a preparation method thereof. The three-color composite mulching film comprises a transparent bottom layer, a middle black layer, a surface silver layer and a transparent layer located in the middle of the film. The transparent bottom layer has hydrophilicity, and does not form dewdrops on the surface of the film layer to reflect sunlight, so that the light transmittance of the mulching film is effectively increased, and the ground temperature and the soil energy storage are improved. And the middle black layer can efficiently block light rays and can effectively inhibit growth of various weeds. The surface silver layer can highly reflect sunlight, can improve photosynthesis of bottom leaves of crops, and can avoid aphids at the same time.

The invention provides a novel mudflat efficient photovoltaic breeding system. The novel mudflat efficient photovoltaic breeding system comprises an arc-shaped ditch bottom, a side ditch, a pool wall, floating objects, a duckweed growth layer, a photovoltaic panel frame, a photovoltaic panel, a pipeline, a control box, a photovoltaic panel support, a first-layer annular pillar lamp, a second-layer annular pillar lamp, a third-layer annular pillar lamp, a fourth-layer annular pillar lamp, a bottom table top and a sponge sleeve. The floating objects comprise phytoplankton and zooplankton, a storage battery, a control panel and a photoelectric detection device are arranged in the control box, the arc-shaped ditch bottom, the side ditch, the pond bottom, the pond wall and the bottom table top form a pond body mechanism facilitating fish gathering and fish lifting, and the photovoltaic panel support, the photovoltaic panel frame, the photovoltaic panel, the control box, the storage battery in the box and the control panel form a photovoltaic mechanism of the fishpond. The first-layer annular pillar lamp, the second-layer annular pillar lamp, the third-layer annular pillar lamp and the fourth-layer annular pillar lamp form a light supplementing mechanism beneficial to photosynthesis, namely growth of phytoplankton, growth of the phytoplankton is beneficial to growth of zooplankton, and growth of fishes is beneficial to growth of the zooplankton.

The invention relates to the field of novel energy conversion, and provides a construction method of an electrochemical device simulating artificial photosynthesis. Comprising the following steps: treating foamed nickel through a FeCl3 solution under the conditions of different concentrations and soaking durations, preparing an iron / nickel-based anode catalyst to separate out oxygen, and selecting foamed copper as a cathode catalyst to reduce carbon dioxide; the solar cell panel is used for converting light energy into electric energy to drive electro-catalytic reaction. According to the construction method of the electrochemical device simulating artificial photosynthesis, the solar panel is used for supplying power, and CO2 reduction reaction is catalyzed while water is electrolyzed. The equipment simulates artificial photosynthesis to realize conversion of water and CO2 into clean energy and low-carbon chemicals. By adopting a mode of combining solar power supply with electro-catalysis, the problems of low efficiency and poor stability of traditional photocatalysis are solved, and the cost of an existing electrochemical catalysis oxygen evolution reaction catalyst is reduced.

The application discloses a kind of based on selective spectral regulation agricultural photoelectric conversion film synthesis method and application, belong to the cross field of agricultural technology and new energy.It is quantum dot as core spectral selective absorption material in the synthesis method, by the standardization steps of substrate pretreatment, transparent electrode preparation, photoelectric conversion layer coating, quantum dot layer integration, back electrode evaporation and packaging, the functional film comprising "substrate-transparent electrode-photoelectric conversion layer-quantum dot spectral selective absorption layer-back electrode" is prepared.The quantum dot layer can efficiently absorb the ultraviolet light, green light and near-infrared light with low photosynthesis utilization rate of plant, and energy is transferred to photoelectric conversion layer to realize power generation;At the same time, the transmittance of blue light and red light necessary for plants is greater than or equal to 85%.The synthesis process of the application has strong compatibility and high repeatability, solves the contradiction between power generation and planting in traditional "agri-photovoltaic", realizes light energy hierarchical utilization and agri-photovoltaic synergy, and can be widely applied to greenhouse, greenhouse, plant factory and other agricultural facilities cover.

The utility model relates to the technical field of vegetable cultivation devices, and discloses a vegetable cultivation plate capable of adjusting cultivation spacing, which comprises a placing plate for loading plants, fixing pipes are fixedly connected to the left and right sides of the front and rear ends of the placing plate, and adjusting rings are rotatably connected to the right ends of the fixing pipes. The inner diameter of the adjusting ring is connected with an extrusion block through an extrusion set, the inner wall of the fixing pipe is fixedly connected with an inner shrinkage pipe, the inner shrinkage pipe is connected with a fixing ball and a shrinkage ring for fixing a planting pot through a fixing set, the outer diameter of the shrinkage ring is fixedly connected with a ratchet ring, and the inner diameter of the shrinkage ring is connected with an inner clamping jaw through a gear set. The distance between the planting pots can be adjusted conveniently, it is ensured that each plant has enough space for photosynthesis, ventilation and root development, healthy growth of the plants is promoted, it is ensured that the planting pots cannot move in the fixing frame due to external force, and the collapse risk caused by accidental movement is reduced.

The invention discloses a method and system for treating neutral high-calcium wastewater through combination of an MICP technology and chemical precipitation, and relates to the technical field of wastewater treatment. The method comprises the following steps: S1, inoculating a bacterial liquid containing synechocystis into neutral high-calcium wastewater; s2, under the daytime illumination condition, calcium ions in the wastewater are induced to form calcium carbonate precipitates through photosynthesis of synechocystis, and primary calcium removal is carried out; s3, under the dark condition at night, phosphate is added in batches by means of extracellular polymeric substances secreted by synechocystis, residual calcium ions in the wastewater are induced to form calcium phosphate or hydroxyapatite precipitates, and deep calcium removal is carried out. The day and night alternate metabolism characteristic of synechocystis is applied to neutral high-calcium wastewater treatment, so that efficient decalcification under a neutral condition can be realized, and stable water quality and controllable precipitation are considered. The open pond type reactor is adopted, so that water can stand and settle, mechanical stirring or temperature control equipment is not needed, and the operation cost is reduced.

A novel method for artificial photosynthesis utilizing a chemical system that operates by harnessing visible light and directly capturing carbon dioxide and water from the atmosphere. The system is based on self-organizing complexes comprising visible-light-sensitive chromophores, such as 2-phenyl indole and 2-phenyl benzoxazole, along with titanium tetrachloride, which autonomously perform continuous, complex chemical operations to produce long-chain (C2 to C17) oxygenated organic materials. The process employs earth-abundant metal coordination compounds, including titanium (Ti), zirconium (Zr), hafnium (Hf), and vanadium (V), in the solid state. These compounds form carbonated metal derivatives upon hydrolysis, which are subsequently reduced through proton transfer from water. The system initially generates C1 materials that oligomerize via a novel self-catalyzed mechanism intrinsic to the system's operation. Monitoring and characterization of the chemical transformations have been conducted using high-resolution MALDI-TOF (matrix-assisted laser desorption ionization-time of flight) mass spectrometry, supported by infrared (IR) spectroscopy and nuclear magnetic resonance (NMR) analysis. This innovation represents a sustainable and scalable approach for converting atmospheric CO2 into valuable organic materials.

The application discloses an openable light shield for an open device or a pool liquid surface and an application method thereof, wherein the light shield comprises a light shield frame, blades are arranged on the light shield frame, the blades are movably arranged on the light shield frame through pivots, the blades are connected with push rod mechanisms, the push rod mechanisms are connected with worm gear operating mechanisms, the push rod mechanisms drive the blades to open and close on the light shield frame through the worm gear operating mechanisms. The application provides a convenient, flexible and firm light shielding facility, which can not only prevent algae in a pool from growing and breeding on fillers or components in the pool through photosynthesis, but also can be conveniently opened at any time to observe the operation condition in the pool, so that operation parameters of the facility can be adjusted and maintenance plans can be determined; meanwhile, the blades of the light shield can be quickly disassembled to facilitate replacement of components and invalid fillers in the pool, and the light shield also has the ability to resist strong wind, heavy rain and snow.

The invention belongs to the technical field of biology, and relates to application of an existing strain streptomyces rochei D74 in delaying leaf senescence. According to the invention, the antioxidant enzyme activity in the later growth and development period of tomato leaves can be improved, the photosynthesis intensity and the redox steady state are maintained, and yellowing and aging of the tomato leaves are delayed.