243 results about "Coral" patented technology

The invention discloses an island reef shoreline remote sensing extraction method based on a double-branch network, and belongs to the technical field of island reef shoreline remote sensing extraction. Comprising the following steps: S1, acquiring an original satellite remote sensing image of a coral island reef, and cutting to obtain a reef remote sensing image; s2, a shoreline vector label is drawn in the island remote sensing image, and rasterization processing is carried out; s3, cutting the rasterized label and the research area image to obtain tile data; s4, dividing the tile data into a training set and a test set; s5, performing data enhancement on the training set tile data to obtain a processed image data set; and step S6, constructing an SDSPNet model based on the image data set. According to the method, the overall semantic expression ability of the broken shoreline and the lagoon face area is enhanced, and the problems of erroneous judgment of the broken shoreline of the coral island and fuzzy lagoon face boundary in an existing method are solved.

The invention discloses a dynamic sea condition ship-machine cooperative attitude control system and method for sea grass transplantation, and belongs to the crossing field of marine ecological restoration and intelligent ship control. The system comprises a mother ship attitude control layer, a communication management layer, an underwater operation end and a sensor network layer, the mother ship attitude control layer, the communication management layer, the underwater operation end and sensor network layer and the mother ship attitude control layer are sequentially connected through lines; the method integrates inertial navigation, visual measurement, event-triggered communication and adaptive filtering technologies, realizes high-precision attitude synchronization and stable operation of the ship and the underwater operation device in sea conditions of four levels and below, and can be widely applied to marine ecological engineering scenes such as seaweed bed restoration, coral transplantation and submerged vegetation reconstruction. And the operation efficiency and the environmental adaptability are effectively improved.

The invention relates to a coral cellulose / photo-thermal material composite antifouling coating and a gradient curing method thereof, and aims to solve the problems of environmental pollution, short antifouling period, lack of environmental response capability and the like in the traditional ship antifouling technology. Through the composite design of the coral cellulose and the photo-thermal material and in combination with a layered curing process, long-acting antifouling and mechanical property strengthening of the coating in a marine environment are realized.

The invention relates to the technical field of coral habitat suitability evaluation, and discloses a method and system for evaluating the influence of an island wave-resistant building on coral habitat suitability, and the method comprises the steps: obtaining a hydrodynamic parameter of a target region under the influence of the wave-resistant building; constructing a judgment matrix of the suitability of the hydrodynamic factors to the coral habitat based on an analytic hierarchy process, and calculating the initial weight of each hydrodynamic factor; dynamically correcting the initial weight according to a coral tolerance threshold to obtain a corrected dynamic weight; based on the dynamic weight and the hydrodynamic parameter, calculating a habitat suitability index of time-space accumulation; calculating a weighted habitat area dynamic value according to a habitat suitability index accumulated in a space-time manner; and based on the difference between the weighted habitat area dynamic value and the non-wave-resistant building reference value, determining the influence level of the wave-resistant building on the coral habitat suitability. According to the scheme, scientific quantification of the influence of the wave-resistant building on the coral habitat can be realized, and an accurate collaborative decision basis is provided for engineering optimization and ecological protection.

The invention relates to the technical field of steel wire rope detection, in particular to a deep sea exploration steel wire rope bending friction fatigue test device and method, a steering wheel is located at the upper end of a gap between a long wheel belt and an inner rail, a steel wire rope is attached to the arc outer wall of the steering wheel to smoothly extend, and a detection box is filled with seawater with the liquid level not higher than the lower end face of a cross beam; the long wheel belt and the inner rail are respectively provided with a wire groove, the outer diameter of the wire groove is larger than that of the steel wire rope, and a coral rock simulation layer or a rubber water belt is arranged in the wire groove. Friction is simulated through contact between the steel wire rope and the coral rock, and then bending and friction tests of the steel wire rope in a deep sea environment are simulated through reciprocating traction of the steel wire rope, so that the accuracy of simulation detection is improved, and the use safety of the steel wire rope is ensured.

The invention discloses an anti-seismic protection structure of a coral island reef limestone underground chamber and a construction method.The anti-seismic protection structure of the coral island reef limestone underground chamber comprises a chamber hole, an elastic shock insulation layer, a pouring layer, a shock insulation support, a viscous damping component and a mild steel damper; the seismic isolation support and the pouring layer bear vertical loads together, the viscous damping component and the side wall bear lateral confining pressure of reef limestone, under the earthquake effect, the elastic seismic isolation layer can preliminarily absorb earthquake energy, and after three-direction seismic waves are transmitted to the structure, the seismic energy of X-direction seismic waves and Y-direction seismic waves is consumed by the seismic isolation support at the bottom layer through vibration and friction, so that the seismic isolation effect is achieved. X-direction and Y-direction deformation and displacement of the chamber are reduced, Z-direction seismic waves absorb seismic energy through the seismic isolation support, so that energy continuously transmitted to the upper portion is avoided or reduced, and the vertical vibration response of the structure is relieved. At the arch crown part, the mild steel damper can absorb and dissipate energy through vibration and plastic deformation of an energy dissipation component arranged on the mild steel damper.

The invention discloses an artificial habitat cold water supply scheme engineering evaluation method and system, and relates to the technical field of coral cultivation. According to the scheme, a Pareto optimal solution set is solved by adopting a multi-objective optimization algorithm, and the blindness and subjectivity of artificial experience selection are avoided by introducing environmental parameters to dynamically adjust the weights of time and space target values, so that a target cold water supply scheme can adapt to the requirements of different coral culture areas, and the coral culture efficiency is improved. And the final implementation effect of the coral reef artificial habitat cold water supply project and the coral protection efficiency are improved.

The invention discloses a Ce-doped CoP / NiCoP-coated NM self-supporting structure electrode and a preparation method and application thereof, the electrode takes a pretreated nickel net as a conductive substrate, a two-step method combining pulse electrodeposition and constant potential deposition is adopted, a compact NiCoP bottom layer and a Ce-doped CoP outer layer are constructed in sequence, and a CoP / NiCoP heterojunction structure with a three-dimensional coralline open morphology is formed. The method is mild in process, green, simple and convenient, and a traditional high-temperature phosphating step is abandoned. The prepared self-supporting electrode combines the charge regulation advantage of a heterojunction interface, the Ce-doped electronic structure optimization effect and the mass transfer advantage of a three-dimensional porous structure, so that the self-supporting electrode has extremely high hydrogen evolution catalytic activity, strong bonding force with a substrate and excellent long-period operation stability.

According to one or more embodiments, a thin-walled perforated structure to grow corals and dissipate wave energy is disclosed. Two types of thin-walled perforated structures are described: reef-crest structure and back reef structure. The reef-crest perforated structure can include a front perforated plate including a first plurality of apertures, a back perforated plate including a second plurality of apertures, and a top perforated plate including a third plurality of apertures. The top perforated plate is coupled to the front perforated plate and the back perforated plate. The thin-walled perforated structure can further include a front interior perforated plate including a fourth plurality of apertures, a back interior perforated plate including a fifth plurality of apertures, a front energy dissipator coupled to the front perforated plate or the top perforated plate, or both, and a back energy dissipator coupled to the back perforated plate or the top perforated plate, or both. The back-reef structure has five inclined side plates and a top plate. Each side plate has a plurality of apertures, and the top plate has one aperture. There is a side energy dissipator between two side perforated plates, and there is a top energy dissipator at the place where the top plate and a side plate meet. The bottom of each side plate has a triangle clearance to accommodate the bottom roughness.

The invention discloses an artificial biological reef for naturally repairing coral, a system and a preparation method. The artificial biological reef body comprises a main body structure made of a cement-based composite material, and at least one hollow cavity is formed in the main body structure; the ecological through holes penetrate through the wall thickness of the main body structure and are used for promoting water flow exchange and marine organism channels; the biological affinity surface layer is arranged on the surface of the main body structure, is made of cement-based materials mixed with seaweed extracts and has rough textures so as to promote attachment of coral larvae; and a reinforcing framework formed by a corrosion-resistant fiber reinforced material embedded in the main body structure improves the overall structural strength and impact resistance. The system comprises a plurality of reefs, special connecting pieces and a foundation stabilizing platform, and can be combined into an array for simulating a natural reef space structure. The preparation method comprises the steps of seaweed extract preparation, bioactive slurry preparation, assembly prefabrication, integrated pouring forming, maintenance and function integration, and preparation of the eco-friendly, stable-structure and multifunctional artificial reef is achieved.

Provided are a preparation process for a modified hydroxyapatite and the use thereof. The preparation process comprises the following steps: S1. removing impurities from coral by using a sodium hypochlorite solution, followed by crushing to obtain coral particles; S2. subjecting the coral particles and a phosphate solution to a hydrothermal reaction at a pH value of 9-11 to obtain coralline hydroxyapatite; S3. mixing and reacting the coralline hydroxyapatite and an ion source to obtain an ion source-doped coralline hydroxyapatite; and S4. heating the ion source-doped coralline hydroxyapatite, and sintering and cooling same to obtain an ion source-doped coralline β-tricalcium phosphate, wherein the ion source comprises a strontium source. The modified hydroxyapatite prepared by the preparation process has a better degradation performance and mechanical adaptability, which improves the biological activity and osteoinductivity of coral artificial bones, and facilitates bone tissue ingrowth.

The invention provides a trace element supplement as well as a preparation method, application and a use method thereof, and particularly relates to the technical field of coral culture. The microelement supplement consists of a cation microelement supplement and an anion microelement supplement, the cation trace element supplement is prepared from SrCl2, Fe-EDTA (Ethylene Diamine Tetraacetic Acid), Mn-EDTA, Zn-EDTA, Ni-EDTA, BaCl2, CuCl2, CoCl2, LiCl and distilled water; the anion trace element supplement is prepared from NaBr, H3BO3, Na2MoO4, KI, KF, Na2CrO4 and distilled water. According to the microelement supplement, the microelement pedigree in the natural growth environment of the coral is reduced through the collaborative design of an anion-cation system. The supplement mainly supplements key elements which are easy to lack in an artificial breeding system, so that effective coverage of microelement requirements of coral in the whole growth cycle is realized.

The invention discloses a novel method for preparing a coralline In2O3 nano material by a low-heat solid-phase precursor method. According to the method, indium nitrate hydrate (In (NO3) 3 * xH2O) and sodium hydroxide (NaOH) are used as raw materials, a precursor is generated through a solid-phase chemical reaction, then calcination treatment is carried out under the low-temperature condition of 300 DEG C, and the In2O3 nanosheet material formed by self-assembly of nanoparticles is obtained after washing and vacuum drying. According to the method, a solvent-free solid-phase reaction system is innovatively adopted, the limitation of an organic solvent in a traditional liquid-phase method is broken through, the contact efficiency of a reaction interface is effectively improved, and the reaction energy consumption is reduced. The preparation method has the characteristics of simple operation steps, high safety coefficient, environmental friendliness, easiness in realization of large-scale production and the like, and has certain technical enlightenment for large-scale preparation of high-end nano devices such as photoelectric catalytic materials and gas sensitive sensor elements.

The utility model discloses a coral feed feeding device which comprises a feed bin and a feed box, the feed bin is used for storing feed, material openings are formed in one side and the bottom end of the feed box, feeding pipes are fixedly connected to the positions, at the two material openings, of the feed box, and the feeding pipes located on the side face of the feed box are used for guiding the feed in the feed bin into the feed box. A driving mechanism and a feeding mechanism are arranged in the feed box, the feeding mechanism comprises a plurality of push plates, the driving mechanism drives the push plates to rotate in the feed box so as to push feed into the feeding pipe located at the bottom of the feed box, and the feeding pipe located at the bottom of the feed box is used for spraying the feed. According to the coral feeding device, the push plate rotates in the feed box to push and extrude feed falling out of the feed bin, so that centrifugal force is given to the feed, the feed can be sprayed out to achieve the effect of feeding coral, and the range of the feed throwing process of the coral feeding device is larger.

The invention relates to the field of damage assessment, in particular to an intelligent auxiliary system and method for coral reef damage assessment, and the system comprises an image collection module which is used for collecting coral reef images through an underwater camera; the recognition module comprises a trained convolutional neural network, and the convolutional neural network is used for inputting the coral reef image and outputting the proportion, coverage rate, area and death rate of each coral reef variety; the density detection module is used for measuring the density of the collected coral reef samples, identifying the coral reef variety based on the identification module during measurement, and calculating the average density of a plurality of samples under the fixed coral reef variety; and the estimation module is used for inputting the damaged thickness evaluated on site, calculating the weight of the damaged coral reef based on the area and density of the coral reef, calculating the coral value of each variety based on a formula, and accumulating the coral values of each variety to obtain an economic loss value for evaluating the damage of the coral reef. By adopting the technical scheme of the invention, the manual work intensity and professional requirements of personnel in the evaluation process can be reduced.

The utility model discloses a coral soil subbase layer construction device which comprises a base, two rotating plates are symmetrically installed on the two side walls of the base, one ends of the two rotating plates are connected with a mixing box through supporting rods, and a rotating shaft is arranged on the lower portion of one side in the mixing box. The crushing device has the beneficial effects that through the design of the crushing roller and the motor II, when coralline soil and cement are mixed, the crushing roller mechanically crushes hard super-particle-size materials in the coralline soil and the cement, and the particle size of the hard super-particle-size materials is adjusted to be within a range meeting engineering requirements; or the strength, durability and stability of the material can be improved by adopting a method of adding a curing agent into the mixture by adopting a liquid storage tank, the uniformity and stability of a foundation are ensured, and meanwhile, when cement and coralline soil are mixed, a crushing cutter rotates in a mixing tank and is matched with contact of the mixing cutter and hard bristles, so that the mixing efficiency is improved. The cleaning effect of the hard bristles on the mixing cutter can be achieved, coral soil or cement is prevented from adhering to the mixing cutter, and the mixing effect of the mixing cutter is guaranteed.

The invention discloses a blocky coral breeding and transplanting combined device and method, and relates to the technical field of artificial coral reefs, and the blocky coral breeding and transplanting combined device comprises a base support with a through hole and a bearing surface; the fixing piece is provided with a plurality of mounting holes and connecting holes; the block-shaped coral is provided with a round hole; the connecting piece is provided with a protruding part, and the protruding part penetrates through the round hole to fix or press the block-shaped coral on the base support and extends to the connecting hole to fix the base support on one face or two faces of the fixing piece. Modular design is adopted, all parts can be flexibly combined so as to improve the operation efficiency, and large-scale carrying, transportation and production are facilitated. The operation efficiency of submarine divers can be effectively improved, and meanwhile the survival rate of coral transplantation and transportation in different places is increased. In addition, the problem that blocky coral varieties cannot be transplanted through a traditional transplanting method is solved, and the genetic diversity of coral repair is greatly improved.

The invention discloses an ecological living stone culture system and a method thereof, belongs to the field of aquarium engineering, and solves the problems of low seabed bacterium culture efficiency, non-uniform flora attachment, breeding of hybrid algae and poor ecological stability of the existing artificial living stone. The system comprises a base body, an internal artificial stone culture area, peripheral and top ecological pretreatment areas and a bottom biological sheltering area. The culture area is provided with a through water channel facing ocean current, independent compartments with grating bulkheads are arranged on the two sides of the culture area, a drainage plate and knocking holes are matched, the pretreatment area is provided with a seaweed culture base and a coral attachment plate, and the sheltering area is provided with stacked pipe fittings. During culture, firstly transplanting seaweed for ecological pretreatment, then putting algae-eating snails and hosting crabs, putting the artificial stones into the compartments for culture, and taking out the artificial stones until more than half of the surfaces of the artificial stones are covered with calcified algae. The device can realize uniform water supply, inhibit miscellaneous algae, shorten the cultivation period, adapt to submarine topography, facilitate large-scale cultivation and is suitable for coral reef restoration and aquarium ecological construction.

The invention provides reinforced coral aggregate. The reinforced coral aggregate is prepared by mixing coral coarse aggregate and cement mortar and then performing vacuum treatment, the cement mortar comprises cement, a water reducing agent, sand, a mineral admixture and a quantum dot reinforcing agent, wherein the quantum dot reinforcing agent comprises ZnS quantum dots, a dispersing agent, a coupling agent and a curing agent. The preparation method comprises the following steps: mixing the cement, the water reducing agent, the sand, the mineral admixture and the quantum dot reinforcing agent to prepare cement mortar, mixing and stirring the cement mortar and the coral coarse aggregate, carrying out vacuumizing treatment, elutriating and sieving the initially set mixture, and airing and curing to obtain the reinforced coral aggregate. The invention also provides application of the reinforced coral aggregate. The reinforced coral aggregate prepared by the invention has low porosity, high density and high strength, the structural stability is improved, and the application of the coral aggregate in the field of island building construction can be expanded.

The invention discloses a method for rapidly optimizing calcareous sand fixing bacteria based on extracellular polysaccharide content detection, which is used for optimizing bacterial strains with excellent sand fixing performance and rapidly providing microbial resources for reducing coral island soil erosion. The method provided by the invention can shorten the subsequent inspection on the calcareous sand consolidation capacity of the strain, can judge the sand consolidation capacity of the strain only by accurately measuring the exopolysaccharide content of the purified strain, can greatly save the time cost, provides a large number of strain resources for sand consolidation and erosion prevention of the coral island, and has a wide application prospect. The method has the advantages of simple operation, low cost, easy popularization and the like.

Sun coral may be neutralized and collected using a sun coral neutralization and collecting system (1) of claim 1 by installing and attaching the sun coral neutralization and collecting system (1) proximate to a subsea structure; using the positioner (150) to move the sun coral neutralizer (100) along a surface of the subsea structure from a starting position along the subsea structure; neutralizing sun coral present proximate the surface of the subsea structure by energizing the heater (130) and using thermal energy supplied by the heater (130); and collecting neutralized sun coral using the collector to store the collected neutralized sun coral.

The invention relates to the technical field of seawater habitat adjustment, in particular to a flow field speed self-adaptive adjusting structure and device, the structure is used for adjusting the flow field speed of a coral culture artificial habitat, and the structure comprises a fish reef and a flow speed adjusting assembly; the fish reef comprises holes; the flow speed adjusting assembly comprises a mounting frame, a flow baffle and a telescopic piece, one end of the flow baffle is rotationally connected with the mounting frame, the other end of the flow baffle is movably connected with the mounting frame through the telescopic piece, and the mounting frame is connected with the fish reef to enable the flow baffle to be located on the hole; the flow baffle rotates under the acting force of seabed water flow so as to adjust the area of the blocking hole. According to the technical scheme, the habitat flow speed can be automatically adjusted according to the change of the environment flow speed, intelligent regulation and control of the flow speed of the habitat area are achieved without external energy input, efficient operation of the temperature control device is ensured, the natural physiological rhythm of organisms or plants in the speed regulation area is fully respected, and the environment safety is improved. The method has the advantages of low maintenance cost, high environmental adaptability, ecological friendliness and the like.

The invention discloses an in-situ water treatment and micronutrient slow release device for a seawater aquarium, and relates to the technical field of aquarium maintenance equipment. The device comprises a probiotic microorganism attachment framework and a plurality of layers of slow-release nutrition balls. The framework is composed of an upper biochemical filter bin and a lower slow release bin, and the upper filter bin is of a dense honeycomb structure so as to provide a huge microorganism attachment surface area; the lower slow-release bin is a drawable drawer with micropores, and the top surface of the lower slow-release bin is closed to protect the upper flora. The slow-release ball adopts a three-layer layered design, wherein the outer layer is a quick start and flora colonization layer; the middle layer contains polyhydroxyalkanoate PHA or PHBV and a microelement chelate, and is used as an algae phase competition and microelement supplement layer; and the inner layer contains a plurality of amino acids and astaxanthin and is used as a coral nutrition and homeostasis maintaining layer. The device is specially designed for the seawater coral jar, nutrient substances are released in a time sequence, the problems of element fluctuation and coral maintenance are solved, and efficient and stable maintenance of water quality is achieved.

This invention discloses a modified coral aggregate UHPC for islands and reefs, its preparation method, and prefabricated island and reef components. The modified coral aggregate UHPC, by mass ratio, is composed of the following raw materials: cement, 30-50 parts; ion migration inhibitor, 5-15 parts; modified coral aggregate, 40-60 parts; stainless steel fiber, 3-7 parts; notched polyethylene fiber, 0.4-0.8 parts; water-reducing agent, 0.3-0.7 parts; adhesive powder, 0.5-1.5 parts; defoamer, 0.05-0.15 parts; combined expansion agent, 1-3 parts; early strength agent, 0.5-1.5 parts; carbon fiber, 0.1-0.2 parts; carbon nanotubes, 0.05-0.1 parts; and mixing water, 9-12 parts. The modified coral aggregate UHPC prepared by this invention has self-compacting properties, high strength, high toughness, high durability and high electromagnetic shielding, and can be sourced locally. It can be used to manufacture prefabricated island and reef components such as artificial reefs and offshore platforms, meeting the needs of island and reef engineering construction and use.

The invention belongs to the technical field of gene interference, and discloses a coral larva RNAi gene editing method and application thereof, and the coral larva RNAi gene editing method comprises the following steps: S1, soaking coral larvae in filtered seawater; s2, an RNAi reagent is added, and siRNA transfection is carried out; and S3, extracting total RNA from the transfected coral larvae, carrying out reverse transcription to obtain cDNA, and carrying out qPCR detection on the cDNA. The method comprises a double-stranded siRNA agent formed by a sense strand and an antisense strand aiming at coral calcavity protein, a transfection method and a qPCR (quantitative polymerase chain reaction) detection method. According to the successfully constructed RNAi-based coral cornu cervi larva gene editing method, functional verification of a target gene can be realized, and a powerful tool is provided for analyzing a coral biological mechanism.

The application provides an island reef coral filler compaction pile and a construction method thereof. The construction method of the island reef coral filler compaction pile comprises the following steps: (1) using a weight to hammer the ground soil body to form a cylindrical hole; (2) first filling mixed sand and stone into the hole, the mixed sand and stone is composed of coral reef gravel and calcareous sand, then pouring a microbial curing liquid and a composite additive, the microbial curing liquid is composed of a composite bacterial liquid and seawater, the composite bacterial liquid is prepared from bacillus pasteurii, bacillus cereus and bacillus mucilaginosus, and the composite additive is composed of hydroxyl citronellal and eucalyptol; then using the weight to ram the filler; (3) repeating step (2) to ram and fill the pile hole to the ground to form the compaction pile. The construction method can significantly improve the quality of the compaction pile, significantly improve the single pile bearing capacity, and effectively reduce the relative usage amount of the microbial curing liquid.

Coral dock comprising an external circulation water tank (1), characterized in that the interior of the external circulation water tank (1) is provided with a sedimentation area (101), a filter cotton water filter area (102), a live rock area (103) and a protein separation area (104) in the order along the flow direction of the water body.

The invention discloses a method for constructing nano coral perovskite by using a transient temperature field applied to high value-added carbon reduction, and relates to a method for preparing perovskite by using the transient temperature field. The invention aims to solve the problems of insufficient active sites, poor product selectivity, serious hydrogen evolution reaction and to-be-improved target product Faraday efficiency of the existing copper-based catalytic material. The method comprises the following steps: 1, preparing a precursor by a chemical bath impregnation method; and 2, preparing the La2CuO4 nano coral perovskite catalytic electrode based on a transient temperature field. The method is used for constructing the nano coral perovskite in the transient temperature field applied to high value-added carbon reduction.

The invention relates to the technical field of biology, in particular to a recombinant coral-spider silk fusion protein and functional alginate fiber and application thereof. The recombinant coral-spider silk fusion protein provided by the invention comprises the recombinant coral-spider silk fusion protein formed by fusing spider silk protein or rattan silk protein and coral protein. The invention designs a fusion protein only containing spider silk protein and coral protein. The recombinant coral-spider silk fusion protein is applied to alginate fibers, colored spinning of the alginate fibers can be achieved, and the spun fibers are high in color fastness, superior to original fibers in strength and elongation and bright and stable in color.