18 results about "Swim bladder" patented technology

The invention discloses a method and system for constructing a living fish underwater feature database and a medium, and the method comprises the steps: collecting original fish information through a preset frequency, carrying out the three-dimensional point cloud reconstruction of a second fish image obtained after preprocessing, and extracting the static phenotypic parameters, such as the scale arrangement features and fin ray morphological features, of the surface of a fish body; body surface texture reflection characteristics are obtained through multispectral analysis; meanwhile, associating time domain features of the second fish image and the second acoustic signal, extracting dynamic behavior features such as a motion trail and swimming bladder vibration frequency, and establishing a feature coding library containing typical behavior patterns; a mapping relation network of different disease types, body surface lesion area spatial distribution and behavior abnormal modes is constructed based on the features, and a feature parameter conversion relation is established; finally, various characteristic parameters are stored in a structured mode, a multi-dimensional characteristic database is formed, multi-dimensional correlation analysis of static phenotypes and dynamic behaviors of fishes is achieved, and the accuracy of disease diagnosis and cross-species characteristic migration is improved.

The invention provides refrigeration equipment convenient for taking swimming bladder oligopeptide and a refrigeration method, belongs to the technical field of refrigeration equipment, and solves the technical problem that the existing refrigeration equipment cannot perform sealed refrigeration and accurate quantitative taking on swimming bladder oligopeptide. A refrigeration device facilitating taking of swimming bladder oligopeptide comprises a device body, supporting legs fixedly connected to the bottom end of the device body and an observation window connected to the surface of the device body in an embedded mode, and a material storage inner barrel is fixedly installed in the device body. According to the storage device, the baffle is arranged at the top of the storage inner barrel, and the sealing groove is formed in the rotating barrel to seal the bottom of the storage inner barrel, so that external air and moisture in the storage inner barrel during refrigeration are effectively isolated, and the preservation effect is extremely good; and the rotating cylinder drives the quantitative groove to take the swimming bladder oligopeptide from the bottom of the storage inner barrel, the storage inner barrel does not need to be opened on a large scale in the whole taking process, cold air loss is reduced to the maximum extent, the internal temperature is kept stable, and the energy-saving effect is good.

The invention discloses a method for extracting fish oil from viscera of freshwater fish, which comprises the following steps: removing gall bladder, swim bladder and intestinal digests in the viscera of freshwater fish, cleaning, draining, and crushing to obtain viscera paste; putting the minced viscera into deionized water, carrying out microwave treatment, then adjusting the pH value to 6.5-7.5, and then adding neutral protease and an antioxidant to carry out enzymolysis reaction, so as to obtain an enzymolysis mixture; and performing centrifugal layering on the enzymolysis mixture, collecting a fish oil layer, and performing distillation purification to obtain the fish oil. According to the extraction method disclosed by the invention, a microwave-assisted enzymolysis technology is adopted to accelerate a reaction process, an oil-soluble natural antioxidant in-situ antioxidant technology is combined to inhibit fat oxidation, and the fish oil is purified by a molecular distillation technology, so that the product quality is improved; the technology can improve the fish oil extraction efficiency, reduce the production cost, reduce the environmental pollution, and ensure the high quality and high purity of the fish oil.

The invention relates to the technical field of underwater robots, in particular to a magnetic control variable-stiffness robotic fish simulating swimming bladder snorkeling. The magnetic-control variable-stiffness robotic fish comprises a magnetic-control variable-stiffness tail fin module, a demagnetization module, a bionic swimming bladder module and a shell outer covering skin, wherein the shell outer covering skin covers a fish body of the magnetic-control variable-stiffness robotic fish and is used for achieving overall sealing of the robotic fish; the bionic swimming bladder module comprises four bionic swimming bladder units; the magnetic control variable stiffness tail fin module comprises a flexible tail fin, a third electromagnet and a passive tail fin, the demagnetization module comprises a power source, a DC-AC converter and a coil, variable stiffness and flexible swing of the tail fin can be effectively achieved, and compared with a gravity center adjusting mechanism, the swimming bladder snorkeling simulating mechanism has the advantages of being small in size, light in weight and the like; good movement performance is realized.

The invention discloses a swim bladder source self-expansion type artificial intervention heart valve. The swim bladder source self-expansion type artificial intervention heart valve comprises a valve frame, a valve leaflet and a skirt edge. The valve frame is annular and is of a net-shaped structure, one end of the valve frame is cylindrical, the other end of the valve frame is trumpet-shaped, and thorn-shaped protrusions are arranged on the periphery, corresponding to the cylindrical part, of the valve frame; the valve leaflet and the skirt edge are sewn on the valve frame; the self-anchoring effect of the valve can be achieved by limiting the structure of the valve frame, specifically arranging the thorn-shaped protrusions on the peripheral surface of the valve frame, the valve is prevented from shifting or slipping when the valve is released in the TAVR operation, in addition, the valve leaflet and the skirt edge are made of swimming bladder source materials and are subjected to specific crosslinking treatment, and the valve leaflet and the skirt edge are made of the swimming bladder source materials. And the valve has better mechanical and anti-calcification performance, so that the service life of the valve is better prolonged.

Provided is a fish size calculation device and method, and a non-transitory computer-readable medium. The target size calculation device includes: a transceiver (22) that transmits a transmission wave to an underwater target and generates an echo signal based on reflection of the transmission wave on the underwater target; a fish tracking unit (25) that tracks a fish among underwater targets over time based on the echo signal due to the different transmission waves; an ultrasonic incidence angle calculation unit (26) that calculates an ultrasonic incidence angle of the transmission wave on the tracked fish for each position of the tracked fish based on the echo signal; a distance calculation unit (27) that calculates a distance between a swim bladder of the tracked fish and a second body part of the tracked fish for each position of the tracked fish based on the echo signal of the tracked fish; and a fish weight calculation unit (30, 901) that calculates a weight of the tracked fish based on the ultrasonic incidence angle and the calculated distance.

The invention belongs to the field of food processing, and provides a swim bladder drying technology which comprises the following steps: pretreating a swim bladder raw material, namely cleaning and removing fishy smell, flatly laying a single layer of the pretreated swim bladder on a material tray for loading, sealing drying equipment filled with the swim bladder, and performing gas replacement, s4, drying parameters are set, the temperature ranges from 35 DEG C to 40 DEG C, the humidity ranges from 15% to 20%, the gas flow rate ranges from 1 m / s to 1.5 m / s, drying is carried out under the drying parameters, the drying parameters are monitored in real time, classification is carried out according to the size of the swimming bladder, and a fish maw finished product is obtained; according to the method, the uniformity and stability of the quality of the swimming bladders in the drying process are effectively guaranteed through the complete process including cleaning and fishy smell removal, single-layer tiling and charging, low-oxygen environment gas replacement, drying parameter control of specific temperature, humidity and air speed, real-time moisture monitoring to the end point, natural cooling and grading.

The invention relates to the technical field of biochemistry, in particular to a swimming bladder collagen antioxidant polypeptide, a screening method of the swimming bladder collagen antioxidant polypeptide and an antioxidant performance testing method of the swimming bladder collagen antioxidant polypeptide. The swimming bladder collagen antioxidant polypeptide is obtained through the screening method of the swimming bladder collagen antioxidant polypeptide, the screening efficiency is improved, the antioxidant activity of the screened polypeptide sequence is ensured, and meanwhile, the method capable of accurately testing the antioxidant performance of the swimming bladder collagen polypeptide is provided.

The application discloses a method for detecting yellow croaker swim bladder by fingerprint spectrum, comprising the following steps: step 1, preparation of yellow croaker swim bladder sample solution; step 2, precise quantitative sample solution is sucked and injected into a liquid chromatograph, and a chromatogram is recorded; step 3, the yellow croaker swim bladder fingerprint spectrum obtained in step 2 is introduced into a traditional Chinese medicine chromatographic fingerprint spectrum similarity evaluation system, common peaks existing in chromatograms of different batches of yellow croaker swim bladder sample are selected as common peaks, and an average value calculation method is used to generate a control fingerprint spectrum of the yellow croaker swim bladder; step 4, typical common peaks in the yellow croaker swim bladder fingerprint spectrum are separated and purified by liquid phase preparation, and representative polypeptide components are obtained; and step 5, the representative polypeptide is analyzed based on liquid chromatography-mass spectrometry, and according to mass spectrometry fragmentation characteristics and fragment ion information, the sample is characterized by comparing with a database. The yellow croaker swim bladder fingerprint spectrum can comprehensively and objectively characterize the quality of the yellow croaker swim bladder, and can be used for identifying the authenticity of the swim bladder.

The application provides a food ingredient partition refrigeration cabinet for fish mucus oligopeptide solid beverage and a taking method, and belongs to the technical field of refrigeration cabinets. The technical problem that existing refrigeration cabinets cannot distinguish and regulate the refrigeration temperature of food types and characteristics to prevent cross contamination is solved. A food ingredient partition refrigeration cabinet for fish mucus oligopeptide solid beverage comprises a cabinet body and a cavity formed in the cabinet body. A refrigeration partition frame is rotationally connected in the cavity. The refrigeration partition frame is in a cylindrical shape, and a plurality of temperature control cavities are formed in the refrigeration partition frame. A refrigeration box is slidably connected in each temperature control cavity. A pushing assembly is arranged in the refrigeration partition frame to control the unfolding of the refrigeration box. A folding and sealing box door is arranged at the box opening of each refrigeration box. The application has the advantages of adjusting the temperature of each temperature control cavity to adapt to the suitable refrigeration temperature of various food ingredients and better improve the refrigeration effect.

The invention provides a method for extracting and separating unsaturated fatty acid in a hippocampus japonicus body, and belongs to the technical field of biological separation. The method comprises the following steps: grinding a hippocampus japonicus sample, soaking with 75% ethanol, performing reflux extraction on the soaked sample for multiple times with 75% ethanol to obtain an extracting solution, filtering the extracting solution, collecting filtrate, concentrating and recovering to obtain a concentrated extract, dissolving the concentrated extract with ethanol, and performing freeze-drying to obtain the hippocampus japonicus freeze-dried powder. The preparation method comprises the following steps: loading on a silica gel column by a dry method, carrying out gradient elution on the silica gel column by adopting a mixed solvent of normal hexane, ethyl acetate and water to obtain a plurality of eluted parts, and further carrying out reverse silica gel column chromatography purification on the part with high content through thin-layer chromatographic analysis to obtain the unsaturated fatty acid. The EPA-containing unsaturated fatty acid is obtained through multiple reflux extraction of 75% ethanol and repeated purification of a silica gel column, and the method is simple to operate, low in cost and small in pollution, and can efficiently obtain the high-purity EPA-containing unsaturated fatty acid.

Main claim: Fishing lure (1), in particular artificial lure made of elastic material such as rubber, silicone or soft plastic or of plastic or hard material, characterized in that at least one hollow body (2), in particular in the form of a cylinder or a chamber, is arranged inside the lure body, and that the hollow body (2) is connected to the outside of the lure via at least one channel (3). Dependent claims

The invention relates to a device for tracking, position prediction and rescue of victims in an aquatic medium, comprising a physical dummy, which mimics a shipwreck victim and comprises at least one swim bladder for ensuring variable buoyancy at different depths; a digital twin, consisting of a configurable expert system, which controls and operates the cycle life of the dummy in real time, from entry into the water up to rescue, replicating the behaviour of a shipwrecked person; and a communications system, which, when the dummy is submerged, releases to the surface multiple capsules that transmit to the digital twin the GPS position of the dummy and the necessary data to identify the dummy.

The application discloses a fish swim bladder chondroitin sulfate-Dermatan sulfate hybrid chain and a preparation method and application thereof, and relates to the technical field of medicines. The fish swim bladder chondroitin sulfate (CS) / dermatan sulfate (DS) hybrid chain with anticoagulant activity is composed of iduronic acid, N-acetylgalactosamine, glucuronic acid and N-acetylglucosamine, and the CS / DS hybrid chain is derived from a fish swim bladder, is easily soluble in water, has strong anticoagulant activity, and can be used for preparing medicines for preventing and / or treating thrombotic cardiovascular diseases.

Use of a fish swim bladder mucopolysaccharide in the preparation of a drug or dietary supplement for ameliorating liver injury. The fish swim bladder mucopolysaccharide can ameliorate pathological damages such as arsenic-induced hepatic sinusoid and central venous congestion, cytoplasmic vacuolization of liver cells, and inflammatory infiltration, can ameliorate arsenic-induced liver cell damage and necrosis, and liver tissue oxidative imbalance, and can also significantly up-regulate the relative expression level of antioxidation-related genes in liver tissues, down-regulate the relative expression level of detoxification-related genes, and alleviate arsenic-induced liver damage.

The invention provides a food ingredient partition refrigerated cabinet for a swimming bladder oligopeptide solid beverage and a taking method, belongs to the technical field of refrigerated cabinets, and solves the technical problems that in the prior art, refrigeration temperatures matched with food types cannot be distinguished and regulated according to the food types and characteristics, and cross contamination cannot be prevented. A food ingredient zoning refrigerated cabinet for swimming bladder oligopeptide solid beverages comprises a cabinet body and a cavity formed in the cabinet body, a refrigeration zoning frame is rotationally connected into the cavity and is cylindrical, a plurality of temperature control cavities are formed in the refrigeration zoning frame, a refrigeration box is slidably connected into each temperature control cavity, and the temperature control cavities are communicated with the refrigeration box. A pushing assembly for controlling the refrigeration boxes to be unfolded is arranged in the refrigeration partition frame, and a folding sealing box door is arranged at a box opening of each refrigeration box. The food ingredient cold storage device has the advantages that the temperature of each temperature control chamber is adjusted so as to adapt to the appropriate cold storage temperature of various food ingredients, and the cold storage effect is better improved.

This utility model discloses a golden croaker rearing device, relating to the technical field of fish rearing devices. It includes a first rearing pond filled with water for raising golden croakers; a net horizontally arranged within the first rearing pond, capable of moving up and down to drive the golden croakers to the bottom; and a pressurization pipe connected at one end to the first rearing pond and at the other end to a second rearing pond, capable of transporting the water from the first rearing pond to the second rearing pond at a set flow rate and pressure, and transporting the golden croakers from the first pond to the second rearing pond. The golden croaker rearing device provided by this utility model can promote the movement of the golden croaker swim bladder under stress conditions such as water depth, water flow, and water pressure, thereby improving the swim bladder quality and overall fish quality.