The present invention is applicable to the technical field of ocean engineering. Provided is a target sonar image recognition submarine search and rescue method based on a transfer learning improved VGG-16 model. The method comprises: step one, preprocessing a data set; step two, improving a VGG-16 model; and step three, freezing a transfer policy. In the method, the structure of the VGG-16 model is improved, i.e., on the basis of the characteristics of submarine sonar image data, structural improvement is performed on the VGG-16 model to optimize the network hierarchy and parameter settings, such that the VGG-16 model is more applicable to small-sample target sonar image recognition tasks in a marine environment; the pre-trained improved VGG-16 model is used to perform transfer learning on a target sonar image recognition task for submarine search and rescue, and by means of freezing and adjusting model parameters, the improved VGG-16 model is adaptive to the characteristics of the submarine sonar image data, thereby improving the recognition accuracy; and by means of introducing a data augmentation policy, an effective data augmentation policy is introduced, the diversity of training data is enhanced, and the robustness and generalization capability of the transfer-improved VGG-16 model are improved.
The present invention belongs to the technical field of microorganisms, and provides a Bacillus subtilis FNFH_BS06 and use thereof. On the one hand, the present invention provides a Bacillus subtilis FNFH_BS06, with a preservation number of CGMCC No. 24836, on the other hand, the present invention provides use of the Bacillus subtilis. The strain is inoculated into soybean meal for fermentation, antigen proteins in the soybean meal can be basically completely degraded, the degradation rate of glycinin reaches 95%, the degradation rate of β-conglycinin reaches 90%, and the content of a water-soluble protein increases by 652%, such that the total protein content and protein solubility of fermented soybean meal can be significantly increased, and the protein utilization rate of the soybean meal is significantly improved, thereby improving the nutritional value of the soybean meal, and reaching a leading level in the field of fermentation of soybean meal by microorganisms.
A23K 10/12 - Animal feeding-stuffs obtained by microbiological or biochemical processes by fermentation of natural products, e.g. of vegetable material, animal waste material or biomass
A23K 10/37 - Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hayAnimal feeding-stuffs from material of fungal origin, e.g. mushrooms from waste material
The present invention belongs to the technical field of microorganisms, and provides a Bacillus subtilis FNFH_BS08 and use thereof. On the one hand, the present invention provides a Bacillus subtilis FNFH_B808, on the other hand, the present invention provides use of the Bacillus subtilis FNFH_BS08. The Bacillus subtilis FNFH_BS08 of the present invention can efficiently degrade main antigen proteins and non-starch polysaccharides in soybean meal by secreting highly active carbohydrate enzymes and proteases, thus improving the overall nutritional parameters of the soybean meal, improving the nutritional value of the soybean meal, and reaching a leading level in the field of fermentation of soybean meal by microorganisms.
A23K 10/12 - Animal feeding-stuffs obtained by microbiological or biochemical processes by fermentation of natural products, e.g. of vegetable material, animal waste material or biomass
A method for processing a Solenocera crassicornis product in a vacuum at low temperature, comprising the following steps: (1) leaching chilled fresh Solenocera crassicornis with water, removing the heads while retaining shrimp shells and sand veins, leaving same to stand for draining, and wiping the surface moisture to obtain drained head-removed shrimps; (2) performing vacuum packaging on the drained head-removed shrimps, and then performing two-stage low-temperature treatment, wherein a vacuum packaging bag is first completely immersed in a constant-temperature water bath at 70-72℃ for 4-5 min, and then taken out and immediately immersed in a constant-temperature water bath at 63-65℃ for 7-10 min; and (3) after the low-temperature treatment is completed, immediately taking out the vacuum packaging bag and placing same in ice water for cooling to obtain the Solenocera crassicornis product. The technical solution uses a two-stage vacuum low-temperature treatment on Solenocera crassicornis, and provides closely related limitations for each process parameter and step, thereby improving a storage effect and prolonging the edible shelf-life.
Provided are preparation of a compound microbial inoculant, an apparatus for preparing the compound microbial inoculant and an application thereof. The preparation of the compound microbial inoculant comprises: selecting kitchen waste, wood chips, and EM fungus bran as raw materials for aerobic composting, adding pollutant-degrading bacteria Pseudomonas mendocin NX-1, Stenotrophomonas sp. HY-2, Rhodococcus sp.YZ-1, Ralstonia sp. XZW-1, and Pseudomonas Oleovorans DT4 to an aerobic composting process, and carrying out co-cultivation until a pile is mature. The compound microbial inoculant can simultaneously degrade n-hexane, pentane, chlorobenzene, and tetrahydrofuran, and the preparation process is simple, low-cost, low-carbon and environmentally friendly.
C05F 17/20 - Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
The present invention relates to the field of aquatic product processing and storage; to solve the problems in that a photosensitizer generates low active oxygen during photodynamic sterilization and that the preservation effect of aquatic products needs to be improved, a halogenated curcumin derivative, a preparation method therefor, and an application thereof in the preservation of the aquatic product are disclosed. The halogenated curcumin derivative contains mono-substituted or bi-substituted halogenated groups; the halogenated curcumin derivative can be prepared by a one-step method and used for photodynamic sterilization of aquatic products. The preparation steps of the present invention are simple, the reaction conditions are mild, and the prepared halogenated curcumin derivative has high singlet oxygen yield under blue light irradiation. The present invention has good sterilization and preservation effects on aquatic products, can effectively prolong the shelf life of fresh shrimp, and has little impact on the sensory properties of the food.
The present invention provides a satire detection method based on a sentiment-topic-satire hybrid model. An unsupervised probabilistic relational model is constructed according to the sentiment distribution of words in a text so as to identify a satire subject. Because a satirical sentence in the text usually has a hybrid sentiment polarity, correctly identifying a satirical sentence and a non-satirical sentence plays a crucial role in sentiment analysis. According to the model constructed by the present invention, related sentiments are estimated on the basis of the topic-level distribution, sentiment-related words appearing in a short text are evaluated, and sentiment-related labels are given. Experimental results show that the model is obviously superior to a baseline method in terms of precision, recall rate, and F value, and the word distribution obtained by learning clearly distinguishes words in a popular satirical topic from words in the corresponding topic, including words having hybrid polarities. Therefore, the present invention can allow for identification of satirical expressions of various events, and is thus suitable for satire detection of various short texts.
A radio frequency high-speed switching control circuit comprises: a control module, outputting a control signal according to a preset algorithm; and a switching module, connected with the control module, and switching an input radio frequency signal to different radio frequency signal output ports for outputting according to the control signal output by the control module; wherein a plurality of toggle switch chips are provided in the switching module, and the toggle switch chips are electrically connected in a cascading manner. The advantages of the present disclosure lie in that through the design of a byte logic control circuit, toggle switches are cascaded to achieve that one input signal is switched to sixteen signal outputs (SPT16) and radio frequency signals within a frequency band range of 5 MHz to 6 GHz can be covered.
2344 on the surface of the immobilized microbial filler. The visible light catalyst-microbial composite material of the present invention is applied to a biological trickling filter, thus greatly shortening starting time of a bioreactor, improving a waste gas treatment effect, and saving costs.
B01J 31/38 - Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups of titanium, zirconium or hafnium
A magnetic composite carrier and a preparation method therefor. The magnetic composite carrier can serve as a biological carrier and is applied to a biochemical apparatus. A hollow spherical outer shell (1) is combined with an internal porous sphere (4). Therefore, the magnetic composite carrier has the characteristics of high porosity, a high specific surface area and high gas flow permeability, such that full contact between a gas flow and the carrier is ensured, a gas flow channel being unimpeded is also taken into consideration, and the pressure loss in a system is reduced. Moreover, the carrier facilitates the uniform dispersion of gas in a reactor, the space utilization rate is improved, and the area of contact between the carrier and microorganisms on the surface of a porous carrier is increased, thereby enhancing the degradation effect. In addition, by means of magnetizing the outer shell (1) and the porous sphere (4), a high-density stable heteropolar magnetic field is formed, thereby stimulating the magnetic effect of the microorganisms, improving the activity of metabolic enzymes, enhancing the biodegradation process of organic matter, and improving the purification effect of organic matter in waste gas. The carrier has relatively low production costs, is durable, achieves high efficiency and energy conservation, and can be extended to all kinds of waste gas purification processes.
The present invention relates to the field of fishery, and particularly relates to a fishing-boat trawl net having a net bag capable of being rapidly separated. The fishing-boat trawl net comprises a trawl-net main body and a net bag, wherein the trawl-net main body is connected to a boat, the tail of the trawl-net main body is provided with an opening, two sides of the opening at the tail of the trawl-net main body are respectively provided with an arc-shaped support rod, the net bag is arranged at the tail of the trawl-net main body, the net body of the net bag penetrates the opening at the tail of the trawl-net main body and extends outward, and an edge of a net opening of the net bag is arranged on the arc-shaped support rods in a lap-jointed manner. The fishing-boat trawl net further comprises a separation and pull-out device, which is used for independently pulling the net bag out from the trawl-net main body, wherein the separation and pull-out device comprises a traction rope, a closing mechanism and a locking mechanism. In the present application, the trawl-net main body can be independently separated by means of the net bag, such that fish in the net bag can be conveniently pulled out therefrom onto the boat, and due to the provision of the closing mechanism and the locking mechanism, the net opening of the net bag is closed more tightly when the net bag is pulled out, such that the tightness of closing of the net bag is improved, and thus it is ensured that fish are smoothly pulled out therefrom.
4 nano-particle reinforced Ti(C,N)-based metal ceramic composite material; the surface treatment liquid includes an aluminum borosilicate whisker/polyimide composite material solution; the high strength wear-resistant material having good strength, good hardness, good fracture toughness, and good wear resistance is prepared and applied.
Bacillus subtilis FNFH_BS06 and the use thereof, which belongs to the technical field of microorganisms. On the one hand, provided is Bacillus subtilis FNFH_BS06, with the deposit number of CGMCC No.24836, and on the other hand, provided is the use of Bacillus subtilis FNFH_BS06. The strain is inoculated to soybean meal for fermentation, an antigen protein in the soybean meal can be substantially completely degraded, wherein the degradation rate of glycinin reaches 95%, the degradation rate of β-conglycinin reaches 90%, and the content of water-soluble protein is increased by 652%, so that the total protein content and protein solubility of the fermented soybean meal can be significantly increased, and the protein utilization rate of the soybean meal is significantly increased, thereby improving the nutritional value of the soybean meal, and reaching a leading level in the field of fermenting the soybean meal by means of using microorganisms.
A23K 10/37 - Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hayAnimal feeding-stuffs from material of fungal origin, e.g. mushrooms from waste material
A23K 10/12 - Animal feeding-stuffs obtained by microbiological or biochemical processes by fermentation of natural products, e.g. of vegetable material, animal waste material or biomass
Bacillus subtilis FNFH_BS08 is provided, and a use of the Bacillus subtilis FNFH_BS08 is also provided; the Bacillus subtilis FNFH_BS08 can efficiently degrade the main antigenic proteins and non-starch polysaccharides of bean pulp by means of secreting highly active carbohydrate enzymes and proteases.
A23K 10/12 - Animal feeding-stuffs obtained by microbiological or biochemical processes by fermentation of natural products, e.g. of vegetable material, animal waste material or biomass
A23K 10/37 - Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hayAnimal feeding-stuffs from material of fungal origin, e.g. mushrooms from waste material
A water changing device for aquaculture breeding, comprises a breeding box. A drainage pipe is inserted into the inner wall below the breeding box; the drainage pipe has an L-shaped structure, and the horizontal side is located at the lower side of the breeding box; a sealing block is tightly inserted above the drainage pipe; a circular ring is arranged on the outer side wall of the upper end of the drainage pipe; a groove is arranged above the circular ring along the circumferential direction, and a filter screen is tightly inserted into the groove; the side wall of the drainage pipe below the breeding box is fixedly connected with a horizontal rod, and one side of the side wall below the breeding box close to the horizontal rod is fixedly provided with a threaded rod.
An automatic food feeder for aquatic breeding comprises a bottom plate; the lower side of the bottom plate is provided with a driving mechanism, and the driving mechanism comprises four groups of rotating shafts located on the lower side of the bottom plate; gears are sleeved on the outer sides of the two groups of rotating shafts, and a conveyor belt is connected between the two groups of gears; a plurality of groups of meshing teeth matched with the gears are uniformly provided on the inner side of the conveyor belt, and a plurality of groups of electric telescopic push blocks are uniformly arranged on the outer side of the conveyor belt; a placing rack is connected on the upper side of the bottom plate, and a control box is connected on the front part of the lower side of the placing rack.
The present application relates to an LNG ship transportation device having a tank protection function, applied to a ship body. A plurality of mounting recesses (1a) are formed in the ship body. Damping mechanisms (2) are arranged in all the mounting recesses. Each damping mechanism comprises a base (2a), a first fixing plate (2b), a second fixing plate (2c), a driving mechanism and a plurality of roller shafts (2g). The roller shafts are driven by the driving mechanism, such that the roller shafts move in the direction of sliding grooves, so that a protected tank body is clamped on the axis of a through hole. By means of the arrangement of the multiple roller shafts, the protected tank body can be driven to rotate in the multiple roller shafts. Because liquefied natural gas is stored in the protected tank body, under the action of gravity, the liquid level of the liquefied natural gas in the protected tank body is continuously rotating in order to keep balance with the horizontal plane, so as to cope with swinging at the two sides of the ship body, thereby preventing safety accidents caused by shaking of the protected tank body in the device, effectively reducing vibration, and preventing collision of the protected tank body.
The present invention relates to the technical field of LNG filling devices, in particular to an efficient filling device for an LNG transport ship. The efficient filling device comprises a filling head and a conveying pipe. An environment detection mechanism, a locking mechanism, a transmission assembly and an automatic separation mechanism are arranged on the filling head. The locking mechanism comprises a pushing ring and a plurality of supporting arms. The automatic separation mechanism comprises a supporting seat, a driving block, a rotary driving motor, a first connector and a second connector. In the present application, the filling head is fixed by means of the locking mechanism, the transport condition of liquefied natural gas is detected in real time by means of the environment detection mechanism, the rotary driving motor of the automatic separation mechanism drives the driving block to move, and the driving block drives the second connector, so that the second connector and the first connector are moving away from each other, and that the valve cores cannot abut against each other, the interior of the first connector and the interior of the second connector are blocked by means of the two valve cores respectively, and thus, the effect of protecting the apparatus is achieved, and safety accidents are prevented.
The present disclosure relates to the field of screw pump technologies, and in particular to a rotary mold extrusion molding process of a screw pump rotor. The rotary mold extrusion molding process of a screw pump rotor includes: performing isothermal spheroidizing annealing for a metal embryo material after treating the metal embryo material ultrasonically for 8˜30 s; performing cylindrical turning for the annealed metal embryo material and then performing sand-blasting, and soaking the metal embryo material in saponified oil for 10˜30 min for lubrication treatment, where the saponified oil contains a nano-silicon carbide of 0.5%˜8% which is a nano-silicon carbide mixture with particle sizes of 20˜60 nm and 140˜200 nm with a mixed weight ratio of 1:(2.8˜4); at room temperature, placing the metal embryo material into an extrusion cylinder to perform rotary mold extrusion molding so as to obtain a finished product.
The present invention belongs to the technical field of radio frequency communication, and provides a radio frequency high-speed switching control circuit and a device. The circuit comprises: a control module for outputting a control signal according to a preset algorithm; and a switching module connected to the control module to switch, according to the control signal output by the control module, an input radio frequency signal to different radio frequency signal output ports for output, wherein a plurality of switching switch chips are provided in the switching module, and the switching switch chips are electrically connected in a cascade mode. The present invention has the advantages that: by means of the design of a byte logic control circuit, the switching switches are cascaded, so that one input signal is switched to 16 signals for output (SPT16), and radio frequency signals with the frequency band ranging from 5 MHz to 6 GHz can be covered.
A water replacement device for larval aquaculture, which comprises a larval culture box (1). A drain line (2) is inserted into the inner wall of the lower portion of the larval culture box (1) and is L-shaped. The horizontal portion of the drain line (2) is located below the larval culture box (1). A sealing block (3) is tightly inserted into the upper portion the drain line (2). A circular ring (5) is provided on the outer side wall of the upper end of the drain line (2). A groove (6) is provided above the circular ring (5) in a circumferential direction. A filter screen (7) is tightly inserted into the groove (6). A horizontal rod (8) is fixedly connected to the side wall of the drain line (2) which is below the larval culture box (1). A threaded rod (9) is fixedly arranged on the side of the side wall below the larval fish culture box (1) that is close to the horizontal rod (8). A sleeve (10) is sleeved on the threaded rod (9) and is fixedly connected to an end of the horizontal rod (8) away from the drain line (2). A nut (11) is rotatably provided on the threaded rod (9) below the sleeve (10).
An automatic feeder for aquaculture, which comprises a bottom plate. A driving mechanism is connected to the lower side of the bottom plate; the driving mechanism comprises four rotating shafts located on the lower side of the bottom plate; gears are sleeved on the outer sides of two rotating shafts; a conveying belt is connected between the two gears; a plurality of meshing teeth matched with the gears are evenly connected onto the inner side of the conveying belt; a plurality of electric telescopic push blocks are evenly arranged on the outer side of the conveying belt; a stand is connected on the upper side of the bottom plate; a control box is connected to a front part of the stand on the lower side thereof; a control button is connected to the right side of the control box; a telescopic rod is hinged to the lower side of the stand; a toggle rod is hinged to the lower end of the telescopic rod; a rectangular through hole is formed on one side of the front part of the bottom plate; the lower part of the toggle rod penetrates through the rectangular through hole; a cross rod penetrates through and is rotatably connected to the toggle rod; springs are sleeved on the outer side of the cross rod. By applying the above structure, the present invention has the following advantages: the driving mechanism is used to replace manual moving of a feed box, feed can be automatically and uniformly sprayed to different areas of a fishpond, and the feeding efficiency is improved.
Disclosed is an oceanic fry proliferation and release ship, relating to the technical field of fry proliferation. The present invention comprises a hull deck, multiple mounting plates mounted at the top of the hull deck, two supporting plates arranged at an interval being fixedly connected to the tops of the mounting plates, a loading frame disposed between the two supporting plates, a box body disposed in the loading frame, and a clamping assembly pressing and fitting with the box body disposed on the loading frame; a supporting column penetrating through the supporting plates is fixedly connected to two opposite outer side faces of the loading frame; an arc plate is fixedly connected to the same side faces of the two supporting plates, an arc groove penetrating through the arc plate and having a sliding fit with the supporting column being formed in one side face of the arc plate; and the arc groove extends to the supporting plate. In the present invention, by means of the box body being overturned and matched with a flow guide groove in use, a survival rate of fry is increased in a release process; in addition, assurance of personal safety is effectively improved, labor intensity is reduced, and release efficiency is improved.
The present invention provides a liquid bandage containing peptide anti-inflammatory active ingredient and a preparation method thereof, which relates to the technical field of medical materials. The liquid bandage comprises film-forming agents; one or more plasticizers, comprising glycerin; one or more anti-inflammatory substances, comprising oligopeptide with an amino acid sequence of Leu-Leu-Phe-Thr-Thr-Gln; and solvent, comprising deionized water. The liquid bandage can promote the expression of interleukin 10 (IL-10) and inhibit the expressions of interleukin 6 (IL-6) and tumor necrosis factor (TNF-α). Peptide anti-inflammatory active ingredient can produce good anti-inflammatory activity. Further, the liquid bandage can enhance the close contact between gel and the injured skin surface, increase the cleanliness of the wound surface, and can increase a clearance rate of inflammatory cells.
An automatic activator coating device for wire and arc additive manufacture includes a base, a mechanical arm is arranged on the upper side of the base, a clamping mechanism is arranged at the lower end of the mechanical arm, a container bottle is clamped on the clamping mechanism, one end of the container bottle is communicated with a sprayer, one end of the sprayer is communicated with an atomizing nozzle, the container bottle is communicated with the gas bottle, and a gas pressure regulating valve is arranged on the gas bottle; and a piston partition is arranged in the sprayer, the container bottle is communicated with an activator converging cavity in one end of the sprayer, a piston rod and a resetting mechanism are arranged in a mounting cavity in the other end of the sprayer, an open hole is formed in the inner surface of the sprayer.
A method and apparatus for determining the sealability of an oil & gas well sealant fluid, whereby a cylindrical cell assembly capable of withstanding high temperature and high pressure with an electromagnetic heater positioned radially outside the cell body while partly filled with the sealant fluid. A leakage assembly in connection to the cylindrical cell assembly allows the sealant fluid to continuously flow through a leakage element at a desired differential pressure, and the residual fluid is drained into said cell by a cycling pipeline system. The real-time pressure may be recorded and transmitted to a control system including data acquisition and control units so as to monitor and measure the sealability of fluid in the downhole leakage.
The present invention relates to the field of aquatic product processing and storage; in order to solve the problems in the existing technology that a photosensitizer generates low active oxygen during photodynamic sterilization and that the preservation effect of aquatic products needs to be improved, a halogenated curcumin derivative, a preparation method therefor, and an application thereof in the preservation of aquatic products are disclosed. The halogenated curcumin derivative contains mono-substituted or di-substituted halogenation groups; the halogenated curcumin derivative can be prepared by a one-step method and can be used for photodynamic sterilization of aquatic products. The preparation steps of the present invention are simple, the reaction conditions are mild, and the prepared halogenated curcumin derivative has high singlet oxygen yield under blue light irradiation. The present invention has good sterilization and preservation effects on aquatic products, can effectively prolong the shelf life of fresh shrimp, and has little impact on the sensory properties of the food.
C07C 49/255 - Unsaturated compounds containing keto groups bound to acyclic carbon atoms containing ether groups, groups, groups, or groups
C07C 45/74 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by reactions not involving the formation of C=O groups by isomerisationPreparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by reactions not involving the formation of C=O groups by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing C=O groups with the same or other compounds containing C=O groups combined with dehydration
A composite and method for prolonging the shelf life of chilled aquatic products. The composite comprises the following components in parts by weight: 15-20 parts of modified carboxymethyl chitosan, 5-12 parts of pectin, 2-5 parts of oleic acid, 1-3 parts of selenium yeast, 1-3 parts of natamycin and 2-6 parts of nisin. The method for prolonging the shelf life of chilled aquatic products by using the composite comprises the steps of treating chilled products with a mixed gas, and soaking the chilled products with the composite in sequence.
A compound and a method for prolonging shelf life of frozen aquatic products are provided. The compound includes: 15-20 parts by weight of modified carboxymethyl chitosan, 5-12 parts by weight of pectin, 2-5 parts by weight of oleic acid, 1-3 parts by weight of yeast selenium, 1-3 parts by weight of natamycin and 2-6 parts by weight of nisin. The method includes sequentially treating a frozen aquatic product under a mixed gas and soaking the frozen aquatic product in the compound. The method can obviously slow down the degradation and oxidative denaturation of protein in aquatic products during cold storage, thus effectively maintaining the activity of protein in the aquatic products and slowing down the deterioration of the aquatic products.
An inversion method for a multilayer seabed geoacoustic parameter in a shallow sea, includes: establishing a plurality of seabed models, different seabed models corresponding to different layer numbers, randomly generating a value of each geoacoustic parameter based on a preset change range corresponding to each geoacoustic parameter, then calculating to obtain a theoretical sound pressure value, and comparing the theoretical sound pressure value with an actual sound pressure value, adjusting and updating the value of each geoacoustic parameter according to the comparison result until the obtained theoretical sound pressure value is matched with the actual sound pressure value, and obtaining a target geoacoustic parameter value; calculating to obtain a BIC value corresponding to each seabed model; and taking the seabed model with the minimum BIC value as a target seabed model, and taking a target geoacoustic parameter value corresponding to the target seabed model as a target inversion parameter value.
Disclosed in the present application is a method for inverting geoacoustic parameters of a multilayer seabed in a shallow sea, the method comprising: establishing a plurality of seabed models, wherein the number of layers corresponding to different seabed models is different; randomly generating the value of each geoacoustic parameter on the basis of a preset change range corresponding to each geoacoustic parameter; then, obtaining a theoretical sound pressure value by means of calculation; comparing the theoretical sound pressure value with an actual sound pressure value; adjusting and updating the value of each geoacoustic parameter according to a comparison result until the obtained theoretical sound pressure value matches the actual sound pressure value, so as to obtain a target geoacoustic parameter value; obtaining, by means of calculation, a BIC value corresponding to each seabed model; and taking the seabed model with the minimum BIC value as a target seabed model, and then taking a target geoacoustic parameter value, which corresponds to the target seabed model, as a target inverted parameter value. By means of the method, the number of layers of a seabed model is accurately determined, and a geoacoustic parameter value in a target seabed model is efficiently and accurately obtained by means of inversion. In addition, further provided are an apparatus for inverting geoacoustic parameters of a multilayer seabed in a shallow sea, and a computer device and a storage medium.
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions
A preparation method of dried scallop is provided and includes: pretreating scallops, impregnating the pretreated scallops with one of the mixed solution of konjac glucomannan and sodium salt, the mixed solution of carrageenan and sodium salt, and the mixed solution of sodium alginate and sodium salt; and then drying the impregnated scallop. The preparation method effectively prevents scallop from cracking, scattering and other quality deterioration during high-temperature drying. The dried scallop processed in this way presents a high rehydration rate. After rehydration, the dried scallop has moderate hardness, high elasticity and good color, good quality and good flavor.
A dried scallop flavor detection and evaluation method, comprising: using a dried scallop as an object, and carrying out rehydration on the dried scallop to obtain a rehydrated dried scallop; determining the water content and the rehydration rate of the rehydrated dried scallop using a water determination method for food; determining a muscular color difference of the rehydrated dried scallop using a colorimeter; observing the cross section and the vertical section of the rehydrated dried scallop using a scanning electron microscope; determining the amino acid content of the rehydrated dried scallop using a high performance liquid chromatography method; extracting betaine using a water extraction method; determining the content of the betaine using a colorimetry method, and evaluating the taste of the betaine using a TAV value; determining an ATP-related compound using the high performance liquid chromatography method; and analyzing a volatile component using GC-MS. The nutritional components and flavor features of the dried scallop can be learned comprehensively, and the flavor of the dried scallop can be objectively and quantitatively evaluated without depending on the subjective evaluation of an expert, thereby providing an effective technical means for the research of flavor substances of dried scallops.
A method for preparing dried scallops, comprising the following steps: after pre-processing a scallop, and before drying, soaking the scallop using a mixed solution of konjac glucomannan and sodium salt or a mixed solution of carrageenan and sodium salt or a mixed solution of sodium alginate and sodium salt, and then drying the soaked scallop. Said method can effectively prevent quality deterioration, such as cracking, loosening, of scallops during high-temperature drying; and dried scallops that have been processed by means of said method have a high rehydration rate, moderate hardness after rehydration, high elasticity, and a good color, and retain relatively good quality and flavor.
A23L 29/256 - Foods or foodstuffs containing additivesPreparation or treatment thereof containing gelling or thickening agents of vegetable origin from seaweeds, e.g. alginates, agar or carrageenan
A23L 29/30 - Foods or foodstuffs containing additivesPreparation or treatment thereof containing carbohydrate syrupsFoods or foodstuffs containing additivesPreparation or treatment thereof containing sugarsFoods or foodstuffs containing additivesPreparation or treatment thereof containing sugar alcohols, e.g. xylitolFoods or foodstuffs containing additivesPreparation or treatment thereof containing starch hydrolysates, e.g. dextrin
2 within the reservoir comprises a displacement container and a core holder. The displacement container comprises a water container, an oil container and a gas container. The core holder is respectively connected with the water container, the oil container and the gas container through a connecting pipe; and the core holder connects with a gas-liquid separator through the connecting pipe.
The invention relates to the technical field of screw pumps, and in particular to a rotary die extrusion molding process using a screw pump rotor. Provided in the invention is a rotary die extrusion molding process using a screw pump rotor, comprising: performing isothermal spheroidizing annealing on a metal blank material, and performing ultrasonic treatment on the metal blank material for 8-30 s before annealing; performing cylindrical turning on the annealed metal blank, then sand blasting and shot blasting treatment, and placing the metal blank in saponified oil to soak for 10-30 min for lubrication treatment, the saponified oil containing 0.5-8% of nano-silicon carbide, the nano-silicon carbide being a nano-silicon carbide mixture having particle sizes of 20-60 nm and 140-200 nm, and the weight ratio in the mixture being 1:2.8-4; and at room temperature, placing the lubricated metal blank into an extrusion cylinder for rotary die extrusion molding to obtain a finished product.
244 nano-particle-reinforced, Ti(C,N)-based metal ceramic composite material, and the surface treatment solution comprises an aluminum borosilicate whisker/polyimide composite solution. A high-strength wear-resistant material having good strength, hardness, and fracture toughness, and excellent wear resistance is prepared, and is used in a screw pump screw lining mold, giving the mold high strength and hardness, excellent wear resistance and corrosion resistance, and good high-temperature oxidation resistance.
A water-soluble astaxanthin nanoemulsion and a preparation method therefor. An astaxanthin diaphragm sheet prepared from the astaxanthin nanoemulsion and a preparation method therefor. A heating-type anti-fatigue eye care package and eyeshade prepared from the astaxanthin diaphragm sheet and a preparation method therefor.
A61K 47/26 - Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharidesDerivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
40.
Recovery device and recovery method of unmanned underwater vehicles
SHANGHAI ZHENHUA HEAVY INDUSTRIES COMPANY LIMITED (China)
Inventor
Wang, Huaming
Mao, Liangzhou
Wang, Xiaofei
Chen, Lin
Huang, Yongsheng
Wu, Qiaorui
Zhang, Xiaojun
Du, Zhenhuang
Wu, Guorong
Liu, Junmei
Fang, Xiaoyi
Ying, Jiang
Abstract
A recovery device for an unmanned underwater vehicle (UUV) includes a first recovery component arranged on an unmanned ship and a second recovery component arranged on the UUV. Two magnets are provided on an end of the first recovery component and an end of the second recovery component which are opposite to each other, respectively. A first cable of the unmanned ship is provided on an end of the first recovery component away from the magnet, and a second cable is provided on an end of the second recovery component away from the magnet. A thruster is provided on a side of the first recovery component. The UUV is recovered using the unmanned ship through the recovery components connected to the cables, which allows the locating and navigation errors to a large extent.
B63C 7/22 - Apparatus engaging vessels or objects using electromagnets or suction devices
B63C 7/02 - Salvaging of disabled, stranded, or sunken vesselsSalvaging of vessel parts or furnishings, e.g. of safesSalvaging of other underwater objects in which the lifting is done by hauling
The present disclosure provides a trawler with a fishing and conveying device and a fishing method, and belongs to the technical field of trawlers. The trawler of the present disclosure includes a hull structure and two fishing devices, wherein the fishing device includes a first rotary rod, a second rotary rod, a fixing frame and a fish suction mechanism, the first rotary rod is hinged at the bow of the hull structure, a fishing net is connected on the first rotary rod, the second rotary rod is hinged at the stern of the hull structure. The present disclosure is capable of realizing continuous fishing and directly conveying the fish onto the trawler, and thus is simple to operate.
The present disclosure belongs to the technical field of fishing operation equipment in fishery, and relates to a net hauler for a trawler. The net hauler includes two rope drums, a drum rotation shaft is disposed on each rope drum and includes a first rotation shaft and a second rotation shaft, a drum is disposed on the first rotation shaft, a cylindrical housing is disposed between two ends of the first rotation shaft and the second rotation shaft, a pivot is disposed on the cylindrical housing. The present disclosure has advantages of changing a net hauling speed and improving a fishing efficiency.
The present disclosure belongs to the technical field of power generators, and in particular relates to a marine support column structure with power generation function. The support column structure solves technical problems that existing marine power generators can only generate power with single energy and have few functions and so on. The marine support column structure with power generation function includes a column body. The support column structure of the present disclosure is capable of generating power with sea wind and waves, and is further capable of serving as a guardrail.
B63B 35/00 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
F03D 9/32 - Wind motors specially adapted for installation in particular locations on moving objects, e.g. vehicles
B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
F03D 3/00 - Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
The present disclosure provides a return gas prevention device for a drainage pipe, belonging to the technical field of drainage pipes. The device realizes two functions of water seal and a check valve simultaneously, as well as prevents gas channeling in a drainage process.
G05D 7/01 - Control of flow without auxiliary power
E03F 3/04 - Pipes or fittings specially adapted to sewers
F16K 24/04 - Devices, e.g. valves, for venting or aerating enclosures for venting only
F16K 31/24 - Operating meansReleasing devices actuated by fluid actuated by a float actuating a lift valve with a transmission with parts linked together from a single float to a single valve
G05D 9/02 - Level control, e.g. controlling quantity of material stored in vessel without auxiliary power
Disclosed is an energy-saving bidirectional ship lift by gravity balancing, including: a ship lift body. A first support is provided in a middle of the ship lift body. A second support is provided at a side of the first support. A third support is provided at the other side of the first support. A space between the second support and the first support forms a first shaft. A space between the first support and the third support forms a second shaft. A first ship-carrying chamber and a second ship-carrying chamber are respectively provided in the first shaft and the second shaft to allow two ships to be transported at the same time. An entry water tank and an exit water tank are provided at two sides of each ship-carrying chamber to adjust the weight of the two ship-carrying chambers.
Provided is a mobile water quality monitoring platform for a fishpond, belonging to the technical field of water quality monitoring devices. The mobile water quality monitoring platform for a fishpond includes a floating body, a first rotating shaft and a second rotating shaft are disposed on the floating body, the first rotating shaft is rotatably disposed on the floating body through two first support plates, two second support plates are vertically disposed on the floating body, an elongated chute hole is horizontally disposed on two second support plates respectively, both ends of the second rotating shaft are inserted into two chute holes respectively, the first rotating shaft and the second rotating shaft are connected through a connecting rod mechanism, a driving mechanism that enables the first rotating shaft and the second rotating shaft to rotate simultaneously is disposed on the connecting rod mechanism.
B63B 35/00 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
B63H 1/04 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels
A squid-type marine oil containment device includes a track and four oil containment booms. A robotic arm is provided in an elliptic area formed by the track. Sliders are provided on the track. Ends of oil containment booms slide along the track through sliders. Each oil containment boom includes an oil suction pipe, propellers and a plastic separating layer. A middle of the oil suction pipe forms an oil channel. Booster pumps are spacedly provided inside the oil suction pipe and are respectively connected to a hose. Pairs of propellers are spacedly provided at a lower end of the oil suction pipe. Oil suction holes are provided on the oil suction pipe. The plastic separating layer is provided under the oil suction holes. A counterweight is provided at a bottom of the oil containment boom. The invention further provides a method of containing oil using the device.
E02B 15/04 - Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
B08B 7/00 - Cleaning by methods not provided for in a single other subclass or a single group in this subclass
B63B 35/32 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for collecting pollution from open water
Qingdao University of Science and Technology (China)
Inventor
Chen, Lin
Zhang, Pan
Liu, Junmei
Wang, Huaming
Wu, Guorong
Abstract
This application provides an intelligent robot for cleaning and mending a net cage and a method of using the intelligent robot, including: a control system, a main body, an attraction module, a motion module, a cleaning module and a mending module. The main body includes a streamlined pressure casing, and a drive mechanism and a water ballast tank which are located in the pressure casing. The attraction module includes electromagnets which are symmetrically provided at a bottom of the pressure casing. The motion module includes first and second motion mechanisms which are symmetrically provided at opposite sides of the pressure casing. A traveling path of the first motion mechanisms is perpendicular to a traveling path of the second motion mechanisms. The intelligent robot achieves cleaning and mending for both sides of the net cage, and is simple to operate, safe, high-efficient, economical and convenient.
B08B 13/00 - Accessories or details of general applicability for machines or apparatus for cleaning
B63C 11/52 - Tools specially adapted for working underwater, not otherwise provided for
B08B 9/36 - Cleaning of containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans, are brought the apparatus cleaning by using brushes
A46B 13/02 - Brushes with driven brush bodies power-driven
B29C 73/04 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using preformed elements
A marine monitoring buoy with an improved structure belongs to the technical field of marine buoys. The marine monitoring buoy includes a first buoy body, a cylindrical portion and a conical portion. A vertical through hole is disposed in the first buoy body, a horizontal through hole is disposed in an upper part of the cylindrical portion, an upper end of the vertical through hole extends to the cylindrical portion and is in communication with the horizontal through hole, a lower end of the vertical through hole penetrates through the conical portion, a wind power generator is disposed in the vertical through hole, two guiding grooves are disposed on a side wall of a lower part of the vertical through hole, a metal piston rod is disposed in the vertical through hole.
An oceaneering test platform device for simulating oceaneering working conditions is disclosed. The oceaneering test platform device comprises a main body, a lifting unit, a plurality of spud legs connected to the main body by the lifting unit, a plurality of base units located correspondingly to the plurality of spud legs and one or more vertical driving unit to enable vertical movement of at least one of the plurality of spud legs. The test platform device facilitates simulation of possible effects caused by unstable and complex ocean environments to an offshore work platform.
G09B 19/00 - Teaching not covered by other main groups of this subclass
G09B 25/02 - Models for purposes not provided for in group , e.g. full-sized devices for demonstration purposes of industrial processesModels for purposes not provided for in group , e.g. full-sized devices for demonstration purposes of machinery
patents
