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1797 results about "Marine Organism" patented technology

Marine biology is the scientific study of marine life, organisms in the sea. Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather than on taxonomy.

Bionic concrete artificial fish reef and preparation method thereof

The invention discloses a bionic concrete artificial fish reef arranged on the seafloor. According to the fish reef, C40 concrete is used for pouring to form an artificial fish reef base body, the surface of the base body is covered with a protective layer which is composed of cement mortar, biological calcium carbonate and oyster shells, the biological calcium carbonate is made of eggshells, corals, seashells and fishbone and is used as an additive to be added into the cement mortar, the cement mortar mixture is smeared on the surface of the fish reef base body to form cement paste after the biological calcium carbonate and the cement mortar are evenly stirred together, and the oyster shells are inlaid in the cement paste in a convex face outward mode. According to the artificial fish reef, the environment-friendly function, the durable function and the trapping function are integrated, the cement mortar covering layer doped with the biological calcium carbonate and the coating of the oyster shells can attract marine organisms to inhabit, and thus the trapping effect of the artificial fish reef can be better achieved; compared with a traditional concrete fish reef, the artificial fish reef has good waterproof property and chloride ion resistance, surface roughness and alkalinity of the surface of the fish reef are appropriate, bionic performance is achieved, and the fish collecting effect is excellent.
Owner:GUANGDONG UNIV OF TECH +1

Underwater releaser

InactiveCN101327838AImprove bearing capacityAdverse effects on normal workUnderwater equipmentMassive gravityUnderwater
The invention provides an underwater releaser, consisting of an electromotion part, a trigger mechanism, an energy storage mechanism, a speed reduction mechanism, a bidirectional overflow mechanism, a dynamic sealing transmission mechanism and a releasing arm, wherein the electromotion part is positioned inside a pressure-resistant cabin; a lower bottom plate of the pressure-resistant cabin is connected with an isolating cabin so as to jointly form a seawater isolating cabin segment in a circle; the seawater isolating cabin segment is provided with the bidirectional overflow mechanism; and the trigger mechanism, the energy storage mechanism and the speed reduction mechanism are all arranged inside the seawater isolating cabin segment. The underwater releaser adopts the design of combining two blocks of U-shaped magnetic steel, ensuring that the maximum trigger power is close to the scalar sum of the gravitational force and repulsive force between the U-shaped magnetic steel; by using a plane volute spring to store energy and using a gear set to reduce speed, the underwater releaser can provide great releasing power; a seawater isolating cabin is built through the bidirectional overflow design, which avoids seawater impact and the adverse effect of marine organisms; through a rotary unhooking mechanism, the releaser can have greater bearing capacity. The underwater releaser is not only better in watertight reliability, but also can work underwater for a long period of time without replacing components.
Owner:HARBIN ENG UNIV

Ship anti-pollution method

The invention discloses a ship anti-pollution method. The ship anti-pollution method comprises the following steps of surface pretreatment of a steel plate, sanding treatment of a substrate, defect repair and sand blasting of welding seams and other structures, spraying of a primer, spraying of a reinforced paint, and subsequent servicing. Before coating, the surface of the steel plate is pretreated; during integral coating, the bottom part of a ship is sprayed with bionic marine anti-pollution coating, the coating contains a pure natural biological anti-pollution agent, the aversion function on marine organisms is realized, the adhesion force of the marine organisms is damaged, the pollution preventing purpose is realized, any poisonous influence on the marine environment is avoided, any damage on the marine organisms is avoided, and the coating is pure natural and is free from public nuisance; the adhesion force, anti-corrosive and strain-proof properties are excellent, the requirements of semi-gloss and matte of an anti-rust paint of a ship cabin are met, the spraying for multiple times is easy, the easiness in volatizing of moisture is avoided, the adhesion capability is higher, and the flash rust is avoided; the process flow is short, and the produced ship has excellent anti-pollution, anti-corrosive and anti-rust properties.
Owner:QINGDAO WUWEI THERMAL INSULATION MATERIAL

Quaternary ammonium salt modified organosilicon polyurethane ocean antifouling paint and preparation method and application thereof

The invention discloses a quaternary ammonium salt modified organosilicon polyurethane ocean antifouling paint, the structure is shown as the formula (1); in the formula, an organosilicon soft segment containing quaternary ammonium salt side chain is an isocyanate hard segment; the quaternary ammonium salt modified organosilicon polyurethane ocean antifouling paint is prepared by the following steps: preparing 2,4,6-tri(3- chlorine propyl group)-2,4,6- trimethyl-ring trisiloxane; preparing 1,3-bi(3-(1-methoxy group-2-hydroxy propyl group) propyl group)-tetramethyl disiloxane; preparing 1,3-bi(3-(1-methoxy group-2-hydroxy propyl group) propyl group)-tetramethyl disiloxane; preparing dihydroxy ended chloropropylated polysiloxane; preparing polysiloxane compound containing the quaternary ammonium salt and hydroxyl; mixing the compound with the isocyanate, and adding gamma-aminopropyl triethoxy silane for chain extension to obtain a prepolymer, and the prepolymer being crosslinked and condensed in air. In the invention, the double effect of low surface energy and poison killing are achieved, so as to suppress the adsorption of marine organisms and kill bacteria adsorbed on the surface of a ship body through the quaternary ammonium salt.
Owner:ZHEJIANG UNIV

Flow channel type marine organism adhesion testing device

The invention belongs to the technical field of marine organism tests and anti-fouling materials, and relates to a flow channel type marine organism adhesion testing device which is used for simulating the flowing state on the surface of a ship body, testing the adhesion of marine fouling organisms on the material surface and researching the effect of different flowing speed and environment conditions on the adhesion of marine fouling organisms. A water inlet, an stainless steel plate with openings, a honeycomb-shaped polycarbonate sheet, a stainless steel sieve plate and an exhaust valve are respectively manufactured on the upper side in a settling chamber of a box structure from right to left, a test cavity is manufactured at the left end of the settling chamber transversely, a differential pressure transformer is manufactured on the side edge at left end of the test cavity, a vacuum pump is arranged in the test cavity, a water tank is arranged at the left side end of the test cavity, a light source is manufactured at the top of the water tank, an outlet pipeline at the bottom part of the water tank is communicated with the water inlet under the control of a multi-end valve, and a frequency conversion pump, a flow meter and a pressure transmitter are respectively manufactured in the communicated pipeline sequentially; the structure is simple, the usage and operation are convenient and the data test is accurate, thereby being convenient for application and popularization.
Owner:725TH RES INST OF CHINA SHIPBUILDING INDAL CORP

Method for detecting density distribution of micro-plastics in soft tissues of marine organisms

The invention discloses a method for detecting density distribution of micro-plastics in soft tissues of marine organisms, and belongs to the field of micro-plastics in fish or bivalve organism samples. The method for detecting the density distribution of the micro-plastics in the soft tissues of the marine organisms comprises the following steps of selecting the fish or bivalve organisms with similar individuals, washing the fish or bivalve organisms with pure water to prepare digestive tract or soft tissue samples, and recording the weights; preparing a digestion solution for digesting the prepared samples, and obtaining a mixed digestion solution; adding NaCl into the mixed solution to carry out density flotation; and carrying out microscopic examination on particles subjected to flotation, selecting the suspected particles to be subjected to analysis of a microscopic-Fourier spectrometer and the like, performing counting after the particles are identified as the micro-plastics, andperforming calculation to obtain the density distribution of the micro-plastics. According to the method, the micro-plastics in the digestive tracts or the soft tissues of the marine organisms can beaccurately quantified, thereby providing basic data for the pollution condition of the micro-plastics in an area.
Owner:ZHEJIANG UNIV +1
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