270 results about "Marine life" patented technology

A lidar system and an inversion method for simultaneously detecting carbon sequestration efficiency of the oceanic biological pump and ocean environmental dynamic parameters. The information of Mie scattering and Brillouin scattering intensity and the information of frequency shift and linewidth of Brillouin scattering spectra are combined, and for the detection requirements of the current ocean carbon cycle and dynamic environmental parameters, the vertical profile distribution of the carbon cycle mechanism and environmental dynamic parameters in the euphotic layer is mainly detected; at the same time, the present disclosure constructs an inversion model of the carbon sequestration efficiency of the oceanic biological pump and the temperature and salinity of the environmental dynamic parameters and realizes the synchronous detection of the carbon sequestration efficiency of the oceanic biological pump and the vertical profile distribution of the ocean environmental dynamic parameters in the euphotic layer.

The invention provides a floating type marine hydrology real-time monitoring device, and belongs to the technical field of marine hydrology monitoring. The floating type marine hydrology real-time monitoring device comprises a buoy, a bracket, a monitoring mechanism, a cleaning mechanism and an equipment box, wherein the bracket is fixedly mounted on the surface of the buoy; a sampling mechanism is mounted in an inner cavity of the equipment box and is used for replacing a water sample in the equipment box. The monitoring mechanism is arranged, the sea surface condition and the sea surface wind speed can be monitored through a camera and a wind speed sensor, the seawater salinity and the seawater solubility are monitored in real time through a conductivity sensor and an optical dissolved oxygen sensor, and the conductivity sensor and the optical dissolved oxygen sensor are arranged in the inner cavity of the equipment box, so that the sea surface condition and the sea surface wind speed can be monitored in real time. A filter plate is arranged at the bottom of the equipment box, so that impurities and marine organisms in seawater are prevented from being attached to the surfaces of the conductivity sensor and the optical dissolved oxygen sensor, and the measurement precision is ensured.

The invention discloses a marine organism detection method, device and equipment and a storage medium, and relates to the technical field of target detection, and the marine organism detection method comprises the steps: obtaining a marine organism data set, and dividing the marine organism data set into a training set and a test set; introducing a Swin Transform network and an efficient multi-scale attention mechanism to improve the initial marine organism detection model, and obtaining a reference marine organism detection model; training and testing the reference marine organism detection model by using the training set and the test set to obtain a target marine organism detection model; and detecting the marine organisms in the marine organism image by using the target marine organism detection model. The target marine organism detection model obtained by the invention can more accurately detect the marine organisms and automatically identify and position the marine organisms, so that the detection efficiency is improved, and reliable data support is provided for scientific research and environmental protection.

The invention relates to a preparation method of a'microstructure-liquid-like surface 'underwater drag-reduction, noise-reduction and antifouling multifunctional composite coating, and belongs to the field of underwater equipment. The multifunctional composite coating provided by the invention comprises an anti-drag microstructure arranged on the surface of a substrate and a liquid-like surface arranged on the surface of the anti-drag microstructure, and the liquid-like surface retains the original morphology of the anti-drag microstructure. According to the micro-structure, the distance between the wall face and a turbulent vortex can be increased, the frequency and strength of a flow vortex pair can be restrained, and resistance reduction is achieved; and on the liquid-like surface, resistance reduction can be achieved by enabling fluid to generate wall face slippage and reducing the speed gradient of the fluid on the boundary. The two mechanisms of action are different but do not interfere with each other, and a better drag reduction effect can be achieved through the synergistic effect. Meanwhile, the composite coating can achieve the noise reduction effect by reducing the turbulence intensity of the wall face. In addition, the liquid-like surface can resist adhesion of marine organisms, the integrity of the microstructure is guaranteed, and therefore the long-term drag reduction effect is achieved.

The invention relates to a laser processing method for a coated armor structure of wear-resistant super-hydrophobic aluminum bronze, which comprises the following steps of: preparing an aluminum bronze workpiece, polishing and cleaning, depositing a ceramic wear-resistant film on the surface of the workpiece by adopting pulse laser, and etching the ceramic wear-resistant film by adopting femtosecond laser, so as to obtain a coated armor structure of the wear-resistant super-hydrophobic aluminum bronze. And then chemical modification of the wear-resistant armor structure is completed through heat treatment, chemical modification of the micro-nano surface structure is completed, and the wear-resistant super-hydrophobic aluminum bronze is obtained. The wear-resistant ceramic film and the wear-resistant armor structure can resist wear together, double guarantee is provided for the internal hydrophobic microstructure, the super-hydrophobic wear resistance of the surface of a component in underwater equipment can be improved, the service life of the component can be prolonged, and the problem of marine organism corrosion is solved.

The invention relates to the technical field of polyhydroxyalkanoate materials, and specifically discloses a marine degradable polyhydroxyalkanoate composition, a molded body and a preparation method thereof. The polyhydroxyalkanoate composition includes: (A): 38 to 89.5 parts of a polyhydroxyalkanoate; (B): 10 to 30 parts of an other fully biodegradable resin; (C): an additive, including: 0.1 to 0.5 parts of a chain extender, 0.1 to 1 parts of an antioxidant, and 0.1 to 1 part of a lubricant; (D): 0 to 30 parts of a filler. The molded body prepared from the composition provided by the present invention has high marine degradability and meets the marine biodegradation certification standard. In addition, the preparation method of the present invention can improve the processability and processing efficiency of the blended composition provided by the present invention.

The invention discloses an improved ocean fishery high-precision target detection method based on RT-DETR, and the method comprises the steps: collecting a marine organism multi-view image, and carrying out the preprocessing of the image; the method comprises the following steps: obtaining a marine fishing ground target data set, replacing a Basic Block module in a backbone network in a model by using an Officent Block module, replacing an AIFI module in the model by introducing a cascade grouping convolution attention module, introducing a cross-scale fusion module based on an attention mechanism in a neck network of the model, and carrying out cross-scale fusion on the basis of the cross-scale fusion module. And configuring a training environment, training the input improvement method of the marine fishery target data set, taking a to-be-detected target image as input, and obtaining a marine fishery target detection result and marine fishery target identification information as output. According to the method, the target identification precision and the network size are well balanced, the positioning precision and the identification accuracy are improved, and the detection capability in a marine fishery complex scene can be improved.

The present invention discloses a rotary underwater fish-aggregating power generation device and its operating method, comprising a float, a power generation module, and a payload module; the payload module includes a housing, a rechargeable power source, a lifting unit, a storage box, and a pressure pump; the power generation module includes a main column, a rotating bearing, brushes, Q rotating frames, a sealing sleeve, and a main delivery pipe. The present invention utilizes a rotary structure to securely attach a piezoelectric composite flexible membrane to the main column and rotating frame, such as a cantilever beam. A mixture of fish-aggregating element and feed is released outward at different locations on the power generation carrier to attract fish to the device. The piezoelectric composite flexible membrane is bent and deformed by the water flow and the fish, generating and storing current. The present invention can be mounted on a payload for simultaneous use, enhancing endurance during cable-free operations in deep waters and continuous, long-term ocean exploration missions. It offers excellent concealment and utilizes the marine environment to generate electricity, but the device does not require special installation or active implantation onto marine organisms.

The invention discloses a marine organism detection method, device and equipment and a storage medium, and relates to the technical field of biological detection, and the method comprises the steps: obtaining a marine organism image data set; training a preset model based on the marine organism image data set to obtain an initial detection model; optimizing a convolutional layer, a cross-level local network module and an improved spatial pyramid pool module of the initial detection model to obtain a target detection model; and identifying a marine organism image through the target detection model to obtain a marine organism detection result. The detection precision of the marine organism detection model can be improved.

An artificial reef structure including thin tensile members as part of the structure. These tensile members readily accumulate marine life to create a more organic structure. The reef structure can accommodate a wide variety of ocean sensing and communication systems. Embedded lighting and electronic elements can be used to attract and monitor marine life.

The invention discloses a submarine pipeline erecting device for ocean engineering based on buoyancy locking, relates to the field of ocean engineering, and solves the problem that an existing pipeline erecting device is prone to being adsorbed by marine organisms, so that clamping force is reduced. The submarine pipeline erecting device comprises a device base and a pipeline body, and two clamping plates are arranged on the outer side of the pipeline body; an elastic bottom plate is slidably mounted on the inner wall of the top of the device base, two first racks are fixedly mounted at the bottom of the elastic bottom plate, a gear is fixedly mounted at the end of a clamping plate, and a first floating ball is arranged on the outer side of the clamping plate; the locking mechanism is used for positioning and tightening the two clamping plates, and the locking mechanism is mounted on the inner side of the device base; through the locking mechanism, the clamping plate can be elastically locked, the first floating ball tightens the bottom end of the clamping plate through the buoyancy of the first floating ball, the clamping force of the clamping plate on the pipeline body can be improved along with the increase of the buoyancy of the floating ball, and therefore the effect of stably fixing the pipeline body is achieved.

Provided is a marine biodegradable polyol that is a compound which: includes at least two organic anions having a molecular weight of 100-5000; has a structure in which said organic anions are bonded by ionic bonds formed by a metal cation having a valence of two or higher, and includes at least two hydroxyl groups in each molecule.

A method for synthesizing carbon quantum dots (CQDs) including reacting a mixture of macroalgae and ethanol hydrothermally in an autoclave at a reaction temperature between 150 degrees Celsius (° C.) and 250° C. to form a suspension. The method further includes separating the CQDs from the suspension. The CQDs have a size of 1 to 5 nanometers (nm). The CQDs have a Stokes shift of at least 80 nm at an excitation wavelength of 270-410 nm.

The invention provides an auxiliary structure for beach and shallow sea ecological restoration and a restoration system construction method, and belongs to the technical field of water conservancy projects for beach and shallow sea ecological restoration. The auxiliary structure comprises a combined type permeable submerged dike structure, a natural wave dissipation combined pile body and an oyster cultivation net-shaped structure. The combined type permeable submerged dike structure comprises hexagonal hollow prisms and isosceles trapezoid hollow prisms, the two prisms are of a staggered and stacked structure, and a natural shelter is provided for small marine organisms. The natural wave dissipation combined pile bodies penetrate through the combined type permeable submerged dike structure through the upper holes and the lower holes of the prisms, and the combined type permeable submerged dike structure is effectively supported and fixed. The oyster cultivation net-shaped structure is fixed to the natural wave dissipation combined pile body, and the design of the net-shaped structure meets the filter feeding environment of oyster cultivation. The repairing system is correspondingly designed based on an auxiliary structure and a field environment. The structure is simple, raw materials are easy to obtain, the protection engineering and the oyster reef body are organically combined, ecological environmental protection is achieved, and follow-up manual treatment is not needed.

A marine organism suppression system and a wind turbine generator set. The marine organism suppression system comprises a seawater heat exchange system (10), heat exchange between seawater and a hot coolant being carried out in the seawater heat exchange system (10); a seawater accommodating tank (20) used for accommodating the seawater; a hot water bypass (30) for bringing a seawater discharge port (12) of the seawater heat exchange system (10) into communication with the seawater accommodating tank (20); a main seawater channel (40) for bringing the seawater accommodating tank (20) into communication with a seawater inflow port (11) of the seawater heat exchange system (10); and a water pump (50) used for supplying seawater to the seawater accommodating tank (20) and for supplying the seawater in the seawater accommodating tank (20) to the seawater inflow port (11) of the seawater heat exchange system (10) through the main seawater channel (40). Marine organisms in seawater in the seawater heat exchange system (10) are killed by using the waste heat of the seawater heat exchange system (10), the system is simple, stable and reliable, almost requires no maintenance, and has good economy.

The invention discloses a marine organism sweeping device of an underwater robot, and relates to the technical field of underwater robots, the marine organism sweeping device comprises an underwater robot main body, and further comprises a sweeping mechanism and a winding mechanism, the sweeping mechanism comprises a controller and a first motor, the controller is installed on one side of the top of the underwater robot main body, and the first motor is installed on the bottom of the underwater robot main body; the first motor is installed on the outer wall of one side of the underwater robot body, a waterproof cable is arranged between the controller and the first motor, the outer side of an output shaft of the first motor is sleeved with a shifting fork, an eccentric bearing is arranged on the inner side of the shifting fork, a fixing shaft is arranged on the inner side, away from the first motor, of the shifting fork, and a scraper knife is installed at the bottom of the fixing shaft. The first motor works, under the action of the eccentric bearing, the shifting fork can drive the fixing shaft to rotate by a small angle, through rapid rotation, the scraper knife can achieve high-frequency vibration, and then the scraper knife can conveniently clean firm marine organisms on the surface of a ship.

The invention belongs to the technical field of ship equipment, and discloses a wave suppression device and a ship. The wave suppression device comprises a hinge four-bar mechanism, a spoiler sheet and a rotary driving part, and the rotary driving part drives the spoiler sheet to rotate through the hinge four-bar mechanism, so that the spoiler sheet has a working position extending into water. The rotary driving part is arranged above the water surface, and the sealing surface of the rotary driving part is separated from the seawater environment, so that the possibility that marine organisms are attached to the sealing surface of the rotary driving part is fundamentally avoided, and the maintenance frequency and the environmental protection risk are remarkably reduced. Besides, the rotary driving part is far away from a seawater corrosion environment and does not need to bear underwater pressure, so that the failure probability of the sealing part caused by seawater corrosion or mechanical shock is reduced, the working stability of the driving system is improved, and the service life of the driving system is prolonged.

The utility model discloses an algal reef system with energy dissipation and biodiversity promotion functions, and relates to the technical field of ocean protection and ecological restoration, the algal reef system comprises a bottom plate, fixing plates and a shellfish and algae growth carrier, the fixing plates are positioned on two sides of the bottom plate, the shellfish and algae growth carrier is a pipe body with a hollow surface, a biological shell is filled in the shellfish and algae growth carrier, and two ends of the shellfish and algae growth carrier are sealed; the shellfish and algae growth carrier is horizontally placed above the bottom plate, the two ends of the shellfish and algae growth carrier are fixed on the fixing plate, through holes are formed in the fixing plate, and a rope penetrates through the through holes to bind algae seedlings. The algal reef system is stable in structure and can effectively resist scouring of sea waves; due to the three-dimensional inhabitation structure, a plurality of microhabitats are provided while tidal current power is weakened, and the diversity of marine organisms is remarkably enhanced; shellfish and algae grow on the surface and in the reef body, a shading shelter can be provided for marine crustacean animals and the like, and the habitat complexity is effectively increased.

The invention discloses a preparation method of a high-entropy metal oxide. The preparation method comprises the following steps: adding a plurality of metal salts into a solvent containing a template agent, uniformly mixing to form a uniform sol, and sequentially aging, drying and calcining the sol to obtain the high-entropy metal oxide, the metal salt is selected from at least five of cerium salt, zirconium salt, hafnium salt, tantalum salt, niobium salt, titanium salt, vanadium salt, molybdenum salt, tungsten salt, copper salt, zinc salt and aluminum salt; the template agent is selected from one of polyether P123, branched polyethyleneimine (BPEI), xanthan gum, epsilon-polylysine, pluronic F-127 and polyvinylpyrrolidone (PVP). The invention further discloses a preparation method of the polymer. The high-entropy metal oxide prepared by the method shows excellent marine biofouling resistance, and has obvious advantages in the field of preparation of marine biofouling prevention materials.

A deep water drawing step of drawing deep water that exists in a deep region of the sea to a surface region of the sea with an upwelling pipe (1); and a phytoplankton culturing step of culturing the phytoplankton in the upwelling pipe (1) are included to produce, as a basic producer of a food chain, a living marine resource, such as fishes and shellfishes, with phytoplankton produced in the phytoplankton culturing step.

A customizable artificial reef for protecting shorelines from oncoming waves and creating a natural habitat for marine life is disclosed. Spurs extending seaward abut a line of crests, forming grooves between the spurs. Optional berms abutting a seaward side of the line of crests may be disposed in the grooves. Parameters of the spur-and-groove customizable artificial reef such as spur height, spur length, wavelength, groove width, cross-shore slope, submerged depth, and the reef crest width are selected to achieve a desired hydrodynamic and circulation of ocean water effect in the SAG reef area. Coral growth on the reef surfaces cover portions, and preferably all, of the SAG reef surfaces, and self-adapt to grow to an optimal height above the SAG surfaces. After storm damage, the SAG reef self-heals through coral re-growth. Spur, crest, and berm sections may be cast individually or may be configured using a plurality of reef modules for ease of manufacturing, transport, and installation.

The utility model belongs to the technical field of antifouling of ocean monitoring instruments, and particularly relates to an antifouling slow-release device for an ocean temperature-salinity-depth sensor. The anti-fouling device comprises an anti-fouling tablet groove, an anti-fouling tablet and a fastener; the antifouling tablet groove comprises a tablet bearing face and a limiting groove edge arranged on the periphery of one side of the tablet bearing face. A tablet accommodating space is defined between the tablet bearing surface and the limiting groove edge, and the antifouling tablet is arranged in the tablet accommodating space; a plurality of release holes for realizing slow release of antifouling active substances in the antifouling tablets are formed in the tablet bearing surface in a penetrating manner; and the fastener is used for fixing the antifouling tablet groove and the antifouling tablet on a protective shell of the ocean temperature-salinity-depth sensor. According to the anti-fouling device, the slow release of the anti-fouling tablets is realized through the release holes in the anti-fouling tablet groove, and the marine organism fouling of the ocean temperature-salinity-depth sensor can be effectively prevented and controlled.

The invention discloses a pile foundation anti-scour protection device for offshore wind power installation, and particularly relates to the technical field of offshore wind power, the pile foundation anti-scour protection device for offshore wind power installation comprises a pile foundation body, seawater scoured to the pile foundation body can be resisted through a water baffle, and under the rebound acting force of a spring, the pile foundation body can be prevented from being scoured to the pile foundation body. The water baffle is pushed to rebound to weaken the seawater impact force, the seawater impact force is further weakened through water permeable holes formed in the surfaces of the porous wave absorbing columns, finally, when the seawater impact drives the rotating fan blades to rotate, the rotating fan blades rotate to unload the impact force of the seawater, and therefore multi-layer seawater scouring weakening is achieved. At ordinary times, the vertical-axis savonus water wheel can be driven to rotate through impact of sea waves, so that the cleaning plate can be driven to perform sliding cleaning on the surface of the water baffle, and the motor can be driven to drive the cleaning plate to clean the water baffle, so that marine organisms or stains attached to the surface of the water baffle can be effectively cleaned, and the service life of the water baffle is prolonged.

The invention relates to an ocean missing data prediction method based on multi-head sparse attention double encoders, and the method comprises the steps: obtaining a data set of ocean water quality, ocean meteorology and marine organisms through an ocean sensor network, and carrying out the preprocessing of the data set; a multi-head sparse self-attention mechanism-based model is constructed and trained, the multi-head sparse self-attention mechanism-based model comprises double encoders and a decoder, and the double encoders are used for processing input information on two sides of a missing sequence in a data set respectively, learning observation value features on two sides of a missing value from positive and negative directions, and outputting the learned observation value features. And splicing features output by the double encoders, inputting the spliced features into a decoder, inputting a preprocessed data set into the decoder, and outputting a prediction value of missing data through a full connection layer. Compared with the prior art, the method has the advantages of improving the accuracy and robustness of ocean missing data prediction and the like.

The utility model provides a novel pumping device for disaster-causing marine organisms at a nuclear power cold source water intake. The novel pumping device for the disaster-causing marine organisms at the nuclear power cold source water intake comprises a floating raft, a lifting mechanism is arranged on the floating raft, a reamer is arranged in the lifting mechanism, a net bag fixing mechanism is arranged on one side of the lifting mechanism, a net bag is fixedly installed on the net bag fixing mechanism, a conveying pump is fixedly installed at the top of the floating raft, and the conveying pump is fixedly connected with the floating raft. One end of the conveying pump is connected with the lifting mechanism, and the other end of the conveying pump is connected with a solid-liquid separation and compression mechanism. The novel nuclear power cold source water intake disaster-causing marine organism suction device has the advantages that marine organisms and sea surface floating objects can be automatically collected and smashed, the smashed marine organisms and the smashed sea surface floating objects can be pressed into cakes, and the manual fishing boat manual lightering cleaning efficiency can be improved.

The invention provides a composite polyurethane film capable of preventing fouling and adsorbing bivalent copper ions in seawater and a preparation method and application thereof.The method comprises the steps that firstly, polyurethane is prepared through a high-molecular organic polymerization reaction, and a tannic acid / collagen compound is used for modifying the polyurethane; the adsorption performance of the original polyurethane is improved, and meanwhile, the antifouling function is given to the polyurethane. Besides, tannic acid is poor in stability in water and easy to dissolve in water, however, tannic acid and collagen are co-precipitated in water, and then the precipitate is grafted to polyurethane, so that the problem of water stability of tannic acid is solved, and meanwhile, because collagen is rich in amino groups, adsorption of bivalent copper ions can be further improved. The preparation method has the advantages that the operation is simple and convenient, the production efficiency is high, the raw materials are easy to obtain and the like, a feasible technical route is provided for industrial production, and a new thought and a new method are provided for reducing the concentration of bivalent copper ions in a marine environment and reducing marine biofouling.

Embodiments of the present disclosure relate to a system for attracting and monitoring marine life by capturing images on and around the seafloor surrounding a device of the system. The system can quantitatively measure the effectiveness of attracting and culling marine life such as but not limited to sea urchins. The attracting and the culling features can be used independently.

The invention is a cage assembly (100) submerged with elastic ropes, used in fish farming in seas (A) and lakes, consisting of the carrier inner cage pipe (101) and the carrier outer cage pipe (102) positioned at the top, remaining on the surface when the fishing net is immersed in water, clamped to each other by means of the carrier pipe connection bracket (103); weights (105) connected to the buoyancy pipes by weight ropes (104) to keep the cage assembly (100) submerged by elastic ropes at a constant depth under water; the fish net (109) which provides the preservation of the fish contained therein; the cover net (111) which covers the upper part of this fish net (109), characterized in that when the cage assembly (100) is immersed in water with elastic ropes by stretching / oscillating, the fishing net (109) is minimally affected by sea (A) movements and the excessive loads it causes, and is protected from lightning, theft, predator attacks and excessive algae. In an embodiment of the cage assembly (100) submerged with elastic ropes, which enabled fish such as Salmon and Trout to swallow air from the surface, there is a second air access ring (119) positioned in the middle of the cage on the surface. The elastic elements (117) can also be applied to the carrier and buoy ropes of other marine life production systems such as mussels and seaweed, and can protect the systems from the oscillating and shaking effects of waves.

The application discloses a kind of light-assisted anticorrosion coating materials and preparation method based on metal coordination structure, the light-assisted anticorrosion coating material is on the basis of traditional anticorrosion metal zinc layer continue to be coordinated with the metal coordination polymer Co (bpy) (dhbq) (bq) with photoelectric conversion capability, and form coordination complex Co (bpy) (dhbq) (bq) @Zn.Because metal coordination polymer Co (bpy) (dhbq) (bq) itself can additionally generate photo-generated electron and photo-generated current after being illuminated, provide redundant charge for Zn layer, make it be in lower potential, strengthen the function of cathodic protection.Corrosion can be inhibited through this mechanism, prolong the service life of Zn layer, provide efficient, green anticorrosion protection for the steel material that needs to be protected.In addition, metal coordination light-assisted anticorrosion technology can also inhibit marine bioattachment by slowly releasing metal ions Co, prevent biofilm formation, reduce microbial growth, prolong the service life of protected material in marine environment, also applicable to underwater bioinduced corrosion and the protection of fouling metal structure.