194 results about "Coral reef" patented technology

The invention relates to a coastal wetland ecological restoration effect evaluation method and system, and belongs to the technical field of ecological monitoring and restoration. Aiming at the problems of static evaluation index lag, insufficient data fragmentation integration and lack of causal diagnosis mechanism in the prior art, multi-source time sequence ecological data are acquired by constructing a three-dimensional monitoring network consisting of satellite remote sensing, an unmanned aerial vehicle, an Internet of Things sensor and an underwater robot; a fusion data set is generated based on space-time alignment and tidal phase marking, dynamic evolution characteristics are extracted by using an LSTM network, and a spatial distribution difference chart of ecological parameters before and after restoration is generated in combination with a GAN; and furthermore, through hot area clustering and historical data association mining, a degradation driving factor is positioned, and an optimization suggestion is generated. The method breaks through the space-time limitation of a traditional evaluation method, remarkably improves the degradation diagnosis precision and the regulation and control efficiency of restoration engineering, and is suitable for various ecological restoration scenes such as estuary delta and coral reefs.

The invention relates to the technical field of marine surveying and mapping and submarine topography modeling, and discloses a submarine topography and landform construction method based on multi-source water depth data fusion, which comprises a multi-source data acquisition module, a data preprocessing module, a feature extraction module, a fusion algorithm matching module, a three-dimensional modeling module and an uncertainty evaluation module. A historical submarine topographic map is converted into grid data, namely, submarine topography is discretized into digital representation of regular grid units, water depths of other sources are converted into the grid data, the precision of the water depths of different sources is evaluated by adopting a superposition comparison method, and an error distribution model is established to reasonably correct and fuse the water depth data of various sources. The innovation of the method lies in that topographic feature parameters including the gradient, the curvature matrix and the bionic optimization algorithm are introduced, the defect that a single algorithm is preset in a traditional method is overcome, and the precision of coral reef and fault zone complex areas is improved.

The invention provides a coral reef remote sensing image multi-modal feature generation and restoration method and system, and relates to the technical field of remote sensing image restoration, and the method comprises the steps: obtaining coral reef image data based on a multi-source sensor, and carrying out the preprocessing; performing image morphological feature and spectral feature extraction on the preprocessed coral reef image data by using a convolutional neural network, and establishing a feature database; carrying out weighted fusion on the multi-source features based on a feature combination network, generating comprehensive feature expressions, and storing the comprehensive feature expressions into a feature database; the coral reef image to be restored is matched with the feature database, and guidance parameters are generated; and inputting the guidance parameters into the generative adversarial network, and performing pixel-level reconstruction on the missing region of the coral reef image to be restored. According to the method, a complete closed-loop system is constructed, multi-source information scheduling, pixel-level guide reconstruction and semantic feedback verification are covered, image information can be supplemented, ecological information can be reasonably reconstructed, and a high-quality data basis is provided for subsequent classification, monitoring and protection work.

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 relates to the technical field of ocean engineering equipment, in particular to a water supply device for creating a coral reef artificial habitat. The water supply device comprises a shell, a filtering assembly, a protection cover, a first elastic piece and a second elastic piece. The first elastic piece is arranged between the flow baffle and the shell, so that the protective cover shields the first discharge outlet under the action of the first elastic piece, and the protective cover avoids the first discharge outlet under the action that the flow baffle overcomes the elastic force of the first elastic piece; the second elastic piece is arranged between the barrel and the shell, so that the filtering assembly shields the second discharging opening under the action of the second elastic piece, and the filtering assembly avoids the second discharging opening under the action that the filtering net overcomes the elastic force of the second elastic piece; the water supply device at least comprises a first working state, a second working state and a third working state, and automatic switching of the three working modes is achieved through the innovatively-designed double-elastic-piece linkage mechanism and the sliding type filtering assembly.

The invention discloses a self-cleaning device for a ballast water pipeline of a tropical scientific investigation ship, the self-cleaning device comprises the ballast water pipeline, a double-rod fixing device, rotation dampers, a screw rod and a rotary scraper, the screw rod is fixed and welded on the inner wall of the ballast water pipeline by the double-rod fixing device, the rotary scraper is fixed on the screw rod through thread engagement and limited by the rotation dampers on the two sides, and the rotary scraper is fixed on the ballast water pipeline. A silicon nitride ceramic shaft seal is arranged at the penetrating connector of the screw and the double-rod fixing device, the rotary scraper body is made of a metal alloy matrix, and the surface of the rotary scraper body is coated with an Al2O3-TiO2 coating. The invention further discloses a working principle of the self-cleaning device for the ballast water pipeline of the tropical scientific investigation ship. Aiming at the special requirements of the operation area of the tropical scientific investigation ship, the rotary scraper is driven by the kinetic energy of ballast water flow, a quickly growing biological membrane is efficiently removed through the centrifugal stripping and shearing stripping effects of the fluid, pollution of chemical cleaning to sensitive ecology such as coral reefs is avoided, and the pipeline blockage risk and the maintenance cost are reduced.

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.

An application and a composition of bioremediation agents and cremated remains forming underwater sanctuaries and structures by coral reefs comprising a homogenous mixture of calcium compounds, clay, cement, earthworm enzymes, and human / animal ashes. The composition will benefit nearby reefs with added calcium for rehabilitating reefs and earthworm enzymes with detoxifying properties. The underwater sanctuaries and structures will provide habitats for wildlife.

The invention relates to the field of marine organism ingestion, in particular to a multi-dimensional analysis and evaluation method for molecular feeding habits of coral reef phytophagous fishes, which comprises the following steps of: determining a specific primer aiming at complex characteristics of mixed food residues in a gastric substance sample, and performing multiple PCR (Polymerase Chain Reaction) amplification on a target gene to obtain DNA (Deoxyribose Nucleic Acid) bar code sequence data of a target fish food source; performing multi-stage comparative analysis on the DNA bar code sequence data and sequence data in a DNA reference database; constructing a molecular characteristic sequence map of different species in the gastric contents according to an analysis result; and according to the molecular characteristic sequence map, determining a feeding preference index of the target fish so as to evaluate the regulation and control capability of the population structure of the target fish on the growth of the macroalgae in the coral reef ecosystem. According to the method, the feeding habit composition of the coral reef phytophagous fishes can be comprehensively analyzed, a scientific basis is provided for protection and management of a coral reef ecological system, and the efficiency of feeding habit analysis and the accuracy of ecological evaluation are effectively improved.

The invention provides a shallow sea multiband substrate reflectivity remote sensing detection method and a shallow sea multiband substrate reflectivity remote sensing detection system. According to the method, four-band multispectral data and ICESat-2 laser sounding data are combined, a strategy of selecting feature points and iteratively searching optical parameters of a water body is adopted, and an index relationship between semi-analysis substrate reflectivity and spectral parameters is utilized to globally constrain a radiation transmission model; a quadratic polynomial model between the chlorophyll concentration of the feature points and the remote sensing reflectivity of the blue and green wave bands is constructed, and large-range rapid inversion of the optimal water attenuation coefficient is achieved; and further combining with a surface remote sensing reflectivity product to construct a climate state monthly average deepwater reflectivity data set, thereby realizing large-range efficient detection of optical shallow sea multiband substrate reflectivity without actually measured data support. According to the method, the application efficiency of the four-waveband multispectral data with the most abundant historical data is improved, the method is high in practicability, and the method has great significance in protection and management of shallow sea coral reef benthic ecology.

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 coral reef geological cast-in-situ bored pile side friction calculation method which comprises the following steps: S1, carrying out on-site pouring construction, collecting a slurry-containing rock core sample, and determining an effective radius; s2, determining the interface friction angle of concrete-coral reef rock of each level of stratum and the cementation shear strength of a slurry-containing rock core; s3, solving a slurry occlusion area coefficient according to the effective radius, integrating the interface friction force and the cementation additional frictional resistance, and establishing a side frictional resistance calculation formula; according to the method, in combination with an on-site pouring test, the infiltration-cementation occlusion effect of cement paste in coral reef rock is quantified, additional friction caused by the cementation effect is synthesized, a side friction calculation formula of a traditional pouring pile is corrected, and the problem that in traditional design calculation, the coral reef stratum bearing capacity is remarkably underestimated is solved; the construction design of the cast-in-place pile is reliably and accurately guided; all tests can be completed within 48 hours on site, and the offshore exploration cost can be remarkably reduced.

The invention discloses a bionic coral reef and a manufacturing method thereof, and belongs to the technical field of porous ceramics, raw materials for manufacturing the bionic coral reef comprise a first raw material and a second raw material, the first raw material comprises, by mass, 30-45% of blast furnace slag, 10-30% of feldspar, 15-30% of tailings, 5-10% of glass powder, 5-10% of clay and 5-10% of talcum powder; the second raw material comprises a foaming agent which accounts for 0.2-0.6% of the mass of the first raw material. The bionic coral reef has the advantages of being high in through hole rate, small in dry specific gravity and high in water absorption rate, does not contain calcium carbonate, and can effectively solve the problem that existing bionic coral is prone to being gnawed.

The invention provides a coral reef-shaped bifunctional catalyst for preparing green hydrogen through biomass gasification and synchronously decarbonizing and a preparation method of the coral reef-shaped bifunctional catalyst, and belongs to the field of biomass high-value utilization. The activity and the stability of the catalyst are improved by regulating and controlling the mutual matching of the active phase and the carrier through the falling position of the active metal; the coral reef-shaped bifunctional catalyst is directionally constructed, and a confinement environment required by bond breaking and CO2 conversion is provided by utilizing the unique spatial configuration of the carrier. The catalyst utilizes a green hydrogen production active center to directionally break bonds in a thermochemical conversion process, so that the content of green hydrogen in synthesis gas is increased; cO2 in the synthesis gas is absorbed and converted by using a decarburization active center, and the content of CO2 at an outlet of the reactor is reduced. The bifunctional catalyst prepared by the invention has relatively high activity and cycling stability, two reaction processes (bond breaking, decarbonylation and water gas shift reaction) are coupled to realize preparation of high-H2 / CO (3.84) synthesis gas through biomass thermochemical conversion, and the application prospect is wide.

An artificial reef module for marine ecosystem restoration comprises a base having a lattice configuration and one or more poles projecting upwardly from the base and configured to support one or more artificial inhabitation units e.g., made by 3D printing, extrusion, pultrusion, or mold specific clay. The module can be configured with one or more of the artificial inhabitation units mounted on the poles, where each inhabitation unit may comprise a plurality of holes formed therein.

The invention relates to the technical field of image recognition, and discloses a coral reef mask automatic extraction method and system based on artificial intelligence. The method comprises the following steps: collecting a multi-source coral reef remote sensing image, and generating a standardized data set through environment adaptive preprocessing; constructing a multi-scale feature pyramid encoder to extract five layers of feature information; an environment perception module is established to calculate an environment complexity vector and re-calibrate a feature weight to form adaptive feature representation; setting a multi-level fusion decoder to execute progressive up-sampling and cross-scale fusion, and generating a probability distribution diagram; and outputting a coral reef mask result by applying an adaptive threshold segmentation algorithm in combination with morphological post-processing. The coral reef mask extraction method and device solve the problems that an existing coral reef mask extraction technology is insufficient in multi-scale feature fusion and insufficient in environment adaptive capacity in a complex marine environment, and improve the coral reef mask extraction precision and environment adaptability.

The present disclosure relates to shaped cementitious compositions that comprise a substrate for aquatic flora and / or fauna attachment; methods for providing a substrate for aquatic flora and / or fauna attachment comprising depositing a shaped cementitious composition into a body of water; and methods for making a shaped cementitious composition. The shaped cementitious composition is formed from a pourable cementitious mixture comprising: (a) a pozzolan comprising a natural pozzolan and / or a manmade pozzolan; (b) MgO and / or Mg(OH)2; (c) an aqueous solution comprising one or more accelerants; and (d) at least one aggregate. In some cases, the MgO and / or Mg(OH)2 of (b) is included in the aqueous solution of (c). And, in various cases, the manmade pozzolan comprises a slag.

The utility model discloses a three-dimensional reinforced bank protection structure suitable for a coral sand site, belongs to the technical field of constructional engineering, and aims to solve the technical problems that a traditional bank protection structure in the prior art is high in construction difficulty and easily affects marine ecology. The fixing device comprises a plurality of fixing units which are overlapped and arranged in a staggered mode. Each fixing unit comprises a gabion box and a geogrid, and the gabion box is filled with coral reefs; geotechnical cloth is arranged between the gabion gabion net and the geogrid, and the gabion gabion net and the geogrid are connected through a plurality of ribbons I; the non-porous geotechnical cloth is arranged on the inner side of the geogrid, and the non-porous geotechnical cloth is filled with coral sand. The three-dimensional reinforced bank protection structure suitable for the coral sand site is small in material consumption, easy and convenient to construct, flexible in modeling and layout, high in stability and high in utilization value.

The conical reef body for promoting coral reef repair comprises a conical reef body, a conical base, a first electric push rod, moving wheels and an orientation adjusting mechanism, the orientation adjusting mechanism comprises a rotating motor, a gear and a rack, the conical reef body is arranged on the conical base, and the large-area bottom face of the conical base makes contact with the seabed. The reef body and the base are arranged to be of a conical structure, the overall stability can be improved, movement or pushing over caused by seawater impact is avoided, the first electric push rod can drive the moving wheels to ascend and descend, the moving wheels enter the annular groove in the bottom of the conical reef body and jack up the conical reef body, and when the conical reef body is jacked up, the conical reef body does not fall off. The rack in the cylindrical cavity on the bottom surface of the reef can rise to the height of the gear and is meshed with the gear, after the rotating motor is started, rotation of the whole conical reef body can be achieved through the gear and the rack, water flow impact is evenly dispersed to all the surfaces, abrasion is reduced, water flow turbulence is increased, coral attachment is facilitated, and the marine environment is improved.

The invention discloses an artificial coral reef with a frame structure capable of being assembled, which comprises a central connecting disc, a plurality of layers of connecting rods, a top-layer frame, a middle-layer frame, a bottom-layer frame and a bottom anchoring system which are connected through standardized interfaces to form a stable three-dimensional frame. The coral reef aims at solving the technical problems that an existing artificial coral reef is poor in material durability, inconvenient to transport and insufficient in ecological function, a center connecting disc serves as a core connecting part and is of a disc-shaped design, and a plurality of standardized connecting holes are formed in the disc face and used for fixing rod pieces of all layers, so that the stability and expandability of the whole structure are guaranteed; the center connecting disc is connected with the top-layer rod piece in an inserted mode through the prefabricated hole site, and rapid assembly is achieved. According to the method, material durability and environment compatibility are both considered, transportation and deployment bottlenecks are broken through through modular and lightweight design, the ecological function is maximized by means of the structure optimization and surface treatment technology, and a low-cost, low-maintenance and sustainable solution is provided for ocean coral reef repair.

The application discloses a pile-forming process of a drainage rigid pile in a drainage anti-liquefaction coral sand foundation, which comprises a base forming box, a base pile pouring device and a drainage rigid pile forming device. The base forming box, the base pile pouring device and the drainage rigid pile forming device are arranged. The base pile pouring device is provided with a connecting and fixing mechanism at the bottom of the outer side. The connecting and fixing mechanism is quickly connected and fixed with the base forming box. The base pile pouring device is provided with a water pumping pipe assembly inside to pump water in the base forming box. The pouring pipe of the base pile pouring device is used to pour concrete into the base forming box, so that the base forming box forms a concrete base. The drainage rigid pile forming device is connected with the base forming box of the poured and formed concrete base. The drainage rigid pile is poured and formed in the drainage rigid pile forming device. The pouring convenience of the drainage rigid pile is improved. The stability of the base pile of the drainage rigid pile is improved. The strength of the drainage rigid pile is improved.

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 application discloses an acoustic coral reef ecosystem repairing method and related equipment, and the method comprises the following steps: matching a target sub-region from a healthy reference area; collecting water acoustic data of the target sub-region for frame processing, noise reduction and biological sound enhancement processing to obtain third water acoustic data; screening target water acoustic data from the third water acoustic data through preset spectrum characteristics; playing the target water acoustic data in a tentative repairing area, regularly acquiring real-time ecological data of the tentative repairing area; quantifying the real-time ecological data of each time node according to a time sequence to obtain a repairing effect of the tentative repairing area; when the repairing effect does not satisfy a preset condition, returning to execute the step of collecting the water acoustic data of the target sub-region until the repairing effect satisfies the preset condition. The application improves the data accuracy through the processing of acoustic data, and then optimizes the sound playing through a feedback cycle, improves the overall repairing success rate, and can be widely applied to the technical field of acoustic data processing.

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 utility model relates to the technical field of ocean seawater detectors, and discloses a fixed seawater detector for a shallow sea area, which comprises a main body and a floating ball connected to the outer wall of the main body, and the bottom end of the main body is provided with a protective dismounting mechanism and an auxiliary filtering mechanism. The handle is pulled upwards to drive the positioning column to move and break away from the inner wall of the clamping positioning hole, clamping block limiting is relieved, then the connecting frame is rotated to drive the clamping block to move to the opening of the inserting groove, and then the connecting frame is pulled downwards to drive the outer wall of the clamping block to break away from the inner wall of the inserting groove, so that disassembly is completed. During mounting, the steps are reversely operated, so that the outer walls of the clamping blocks move relative to the positioning columns until clamping holes in the top ends of the clamping blocks move to the positions below the positioning columns, the clamping columns can be clamped to the inner walls of the positioning holes through springback of springs, and mounting is completed; the detector is prevented from colliding with coral reefs when the detector moves downwards along with sea waves to cause damage and influence on subsequent detection data.

The invention discloses a coral reef ecosystem community carbon sequestration evaluation method based on a Lagrange drift trajectory, and belongs to the field of marine ecological environment monitoring and carbon cycle research. The device comprises a drift tracking module, a CTD module, a hydrochemical parameter acquisition module, a depth instrument, a waterproof system and a buoyancy system, all the modules are integrated in the waterproof system, the buoyancy system is connected with the exterior of the waterproof system, and the modules are in signal connection to realize data transmission; according to the method, a Lagrange drift path and a time interval are recorded through the drift tracking module, the CTD module collects the temperature and salinity of a water body, the hydrochemical parameter collection module obtains total alkalinity and dissolved inorganic carbon and calculates the variable quantity of the total alkalinity and the dissolved inorganic carbon, and the depth instrument monitors the average water depth; the COexchange flux is calculated in combination with meteorological data, and then the net calcification rate and the net photosynthesis rate are obtained through a preset formula.

The present invention relates to the field of marine biological feeding, in particular to a method for multi-dimensional analysis and evaluation of the molecular feeding habits of coral reef herbivorous fish. Specific primers are determined for the complex characteristics of mixed food residues in gastric content samples, and multiplex PCR amplification is performed on target genes to obtain DNA barcode sequence data of the food sources of target fish; the DNA barcode sequence data is subjected to multi-level alignment analysis with the sequence data in the DNA reference database; a molecular characteristic sequence map of different species in the gastric content is constructed according to the analysis results; feeding preference indexes of target fish are determined according to the molecular characteristic sequence map to evaluate the regulation ability of the target fish population structure on the growth of macroalgae in the coral reef ecosystem. The present invention can comprehensively analyze the feeding habits of coral reef herbivorous fish, provide a scientific basis for the protection and management of coral reef ecosystems, and effectively improve the efficiency of feeding habit analysis and the accuracy of ecological evaluation.