58 results about "Extreme environment" patented technology

The invention belongs to the technical field of charging detection, and particularly relates to a charging pile extreme environment test method based on composite stress simulation, a terminal and a storage medium, and the method comprises the steps: inputting an identifier corresponding to a target test scene through a human-computer interaction interface of a test cabin, and executing a query operation based on the input identifier, retrieving a preset parameter combination from a preset scenarized stress library by using the mapping function; in a closed test cabin, environment parameter data are collected in real time through a distributed sensor array and fed back to a central controller, and the central controller drives an execution component to cooperatively regulate and control parameters such as temperature and humidity, so that the environment parameters are stabilized in a preset range; a sequential stress scheme is generated based on a pre-stored dynamic loading algorithm, an execution component is controlled to realize stress superposition or stress alternation, and a charging load is synchronously adjusted to simulate a composite stress effect under an actual working condition; simulation of multi-factor combined stress and dynamic loading is realized, an actual use fault can be found in advance, and the matching degree of a test result and a real environment is remarkably improved.

The invention discloses a deep and far sea wind power foundation platform and load integrated system under extreme environment conditions, and belongs to the technical field of offshore wind power platforms. The system comprises a basic platform body, a multi-dimensional monitoring subsystem, an environment-load coupling analysis subsystem, an intelligent regulation and control execution subsystem, a safety early warning decision subsystem and a shore-based collaborative management subsystem. Through synchronous acquisition of extreme marine environment, basic platform structure load and operation state data, distributed multi-type sensor layout and high-frequency sampling, data acquisition comprehensiveness and timeliness are realized, monitoring data are fused, a coupling model is constructed, 24-hour load change is predicted, and the real-time performance of the system is improved. According to the method, the attitude of the platform is dynamically adjusted, bearing configuration is optimized, emergency protection is started, the limitation of traditional separation analysis and fixed regulation and control is broken through, and the risk disposal and operation and maintenance efficiency is improved through risk quantification and grading early warning, remote monitoring and intelligent scheduling of a shore-based collaborative management subsystem and four-level early warning accurate matching coping strategies.

The invention provides a hydrogen-rich water concentration dynamic adjustment method, and relates to the field of concentration adaptive adjustment, and the method comprises the following steps: S1, data acquisition; step S2, data preprocessing; s3, key influence factors are extracted; s4, acquiring the initial concentration of the hydrogen-rich water; and S5, obtaining the optimized concentration of the hydrogen-rich water: obtaining a dynamic concentration adjustment amount, an extreme environment adjustment amount and an implicit stress adjustment amount through reinforcement learning dynamic optimization, extreme environment adaptation and implicit stress early warning, and obtaining the final concentration of the hydrogen-rich water. According to the method, self-adaptive adjustment of the concentration of the hydrogen-rich water can be performed according to the growth state of the plant and environmental factors, the accuracy of the concentration of the applied hydrogen-rich water is ensured, and the problem that normal growth of the plant is affected due to too high or too low concentration of the hydrogen-rich water is avoided.

The invention relates to the technical field of agricultural microorganisms, and discloses stress-tolerant bacillus velezensis L-29 and application thereof. The bacillus velezensis L-29 is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.35587. The bacillus velezensis L-29 is named as bacillus velezensis L-29. Experiments prove that the bacillus velezensis L-29 can adapt to various extreme environments, can survive and proliferate under the extreme environments of drought conditions simulated by 0-25% PEG 6000 under the conditions that the pH is 2-12 and the salt concentration is 1.5%, and has various functions of soil improvement (organic matter decomposition and phosphorus activation), plant growth promotion, broad-spectrum disease control and the like. In the secondary fermentation stage of compost, humus generation can be remarkably promoted, compost maturation is accelerated, the good colonization ability is achieved, and after an obtained compost product is applied to normal soil, the nutrient effectiveness can be improved, crop growth is promoted, and the disease resistance is enhanced.

The invention relates to the technical field of diving suit detection, and discloses a high-pressure diving suit detection device and method, and the device comprises the following steps: a high-pressure simulation cabin which is used for simulating the high-pressure environment of a deep sea, and providing the testing conditions of a diving suit under different depth pressures; the warm dummy simulates a human body and can heat different parts of the dummy in an underwater high-pressure environment, so that real-time visualization of body surface temperatures of all the parts of the human body in the underwater high-pressure environment is achieved, temperature control data can be recorded in real time, and a diving suit in detection can be worn on the warm dummy in real time; and the temperature control system simulates the heat distribution and heat loss rule of the human body by adjusting the temperature of each part of the thermal dummy. Multi-dimensional environmental parameters including pressure, temperature and humidity can be simulated through the high-pressure simulation cabin, so that the actual working state of the diving suit in the deep sea can be effectively represented, comprehensive test conditions are provided, the test result is close to the real use situation, and the reliability and safety of the diving suit in the extreme environment are ensured.

The utility model relates to the technical field of conveying pipeline protection, and discloses a pipeline external protection mechanism in an extreme environment, which comprises a pipeline, two groups of mounting flanges and a protection component. According to the pipeline external protection mechanism in the extreme environment, the outer side of the pipeline is sleeved with a set of sleeves, the two ends of the sleeves achieve sealing of the contact portions of the pipeline and the sleeves through sealing assemblies, temperature loss caused by air convection is reduced, meanwhile, through the multiple sets of annular pipes in the pipeline and argon filled in the annular pipes and the heat preservation cavity, the temperature loss caused by air convection is reduced; meanwhile, through supporting and shaping of the annular pipe, it is guaranteed that the whole sleeve is not prone to deformation, the annular groove formed in the outer side of the sleeve can guide rain and snow accumulated at the top end of the sleeve to flow downwards, the rain and snow are prevented from being accumulated at the top of the pipeline, and the service life of the sleeve is prolonged. And therefore, the safe use performance of the whole pipeline under extreme climate conditions is improved.

The invention relates to a vessel for the long-term storage of DNA in space at a constant temperature of -196 °C. The aim is to protect biological samples – especially DNA – for decades to centuries from the extreme environmental conditions of space, including vacuum, intense radiation, extreme temperature fluctuations and mechanical stresses. The vessel has a three-layered structure: 1. Inner chamber made of boron nitrogen nanotubes (BNNTs) that offer outstanding protection against cosmic radiation, high mechanical strength, chemical inertness and temperature resistance. 2. Middle insulating layer made of aerogel that minimizes heat exchange and keeps the cryogenic temperature constant. 3. Outer protective layer made of titanium, which protects against micrometeorites, It protects against physical impacts and corrosion. Technical advantages: • Long-term stability of DNA through consistently low temperatures. • Effective radiation protection against cosmic and solar radiation. • Excellent thermal insulation thanks to aerogel. • Mechanical robustness due to titanium. Areas of application: • Securing and archiving genetic material for research, space travel and long-term preservation. • Provision of DNA for future scientific or biological restoration projects. Special feature: The capsule is compact, space-compatible, and can be used as part of space missions, space stations, or interplanetary projects.

The application discloses a construction method of a rock layer adjacent to a horizontal foundation plane of a nuclear island, and specifically comprises the following steps: test blasting, determination of a standard blasting crater radius; standard blasting crater optimization combination; calculation of bench blasting hole row spacing; analysis of a ground shape after bench blasting; calculation of a terrain volume after bench blasting; bench blasting crater combination with a structural group; bench blasting hole row spacing selection; selection of a non-blasting construction thickness of a protective layer; and non-blasting layer engineering quantity calculation. The application adopts standard blasting crater combination, analyzes a blasting crater circular arrangement combination rule, finds out a relationship between the blasting hole row spacing and a left terrain after blasting, analyzes advantages and disadvantages of a blasting protective layer and a non-blasting protective layer, can adapt to extreme environmental conditions of an unfavorable blasting construction, avoids a blasting fly rock risk, and can protect the nuclear island foundation plane.

The invention discloses a thermal performance testing device for a horizontal section of a deep U-shaped well, and belongs to the technical field of geothermal energy development and utilization. The device comprises a horizontal section targeting test assembly, a ground circulation regulation and control assembly, an on-way parameter acquisition assembly and a data processing and control assembly, the horizontal section targeting test assembly is embedded in the horizontal section, forms an independent test chamber through a test inner pipe and an end sealing piece, and is provided with a detachable grouped rock stratum module and a visual window; the ground circulation regulation and control assembly regulates and controls the temperature, the flow and the system pressure of circulation fluid. The on-way parameter acquisition assembly adopts a distributed optical fiber temperature measurement unit and an on-way pressure-temperature sensing unit to realize on-way parameter acquisition; and the data processing and control assembly is used for data acquisition, processing display and automatic regulation and control. The problems that an existing device is interfered by heat loss of a vertical well section and is poor in extreme environment adaptability are solved, the multi-lithology adaptation capacity is achieved, and accurate and targeted testing of the thermal performance of the horizontal section of the deep U-shaped well can be achieved.

This application discloses a method and system for assessing extreme environmental conditions in coastal engineering, relating to the fields of marine and coastal engineering technology. The method includes: establishing wave propagation deformation conversion relationships; performing quality control on multi-source wave-tide data; performing tidal level decomposition on the total water level time series; identifying multiple independent extreme wave-tide coupling events, extracting characteristic parameters to form a multi-dimensional extreme sample set, and establishing a joint distribution model; determining the target probability level and constructing an environmental profile with equal exceedance probabilities; selecting representative combined operating conditions, and using the wave propagation deformation conversion relationships to convert the representative combined operating conditions to nearshore control points to obtain design wave elements. This application, driven by multi-source wave-tide data, establishes a joint distribution model of wave height, period, and tidal level and constructs an environmental profile with equal exceedance probabilities, achieving quantitative determination of extreme design wave conditions with clear joint probability meanings, thus improving the scientific and economical nature of coastal engineering design.

This utility model discloses a monitoring matrix for monitoring water levels in dams, relating to the field of water level monitoring technology. It includes a dam sidewall with multiple extension plates installed on it. Each extension plate has a sliding groove inside, which communicates with the interior of the dam. A bracket is installed on each of the upper ends of the extension plates, located on either side of the sliding groove. A first fixed shaft is connected between two brackets, and a traction rope is mounted on the surface of the first fixed shaft. One end of the traction rope extends into the sliding groove and is fitted with a float. A longitudinal groove is formed at the upper end of the dam sidewall. This utility model, through a series of structures and the cooperation of multiple Hall effect sensors and floats, overcomes the limitations of traditional single-point monitoring. It achieves full-area coverage of dam water levels using a mechanical transmission matrix. Compared to purely electric monitoring equipment, it has lower maintenance costs and frequency, and the mechanical structure is less susceptible to the effects of extreme environments.

The invention belongs to the technical field of oil reservoir microorganisms, and particularly relates to a zoococcus strain and application thereof. The bacterial strain is a Planococcus sp. Bacterial strain WL-9, and is a new strain of the Planococcus sp. The strain is separated from an oil reservoir source, can reduce interfacial tension between crude oil and water, plays a role in emulsifying the crude oil, is good in oil reservoir adaptability, and can convert the crude oil into methane in an extreme environment of the oil reservoir and in the presence of CO2. The invention provides a new high-quality strain resource for microbial oil recovery, and has great significance for improving the oil recovery rate, reducing carbon emission by CCUS microbial carbon conversion and treating and repairing petroleum pollution.

The invention belongs to the technical field of biology, and discloses virus lysozyme from a deep sea cold spring as well as a preparation method and application of the virus lysozyme. The virus lysozyme provided by the invention comprises amino acid fragments of which the sequences are as shown in one or more of SEQ ID NO: 1-7. The virus lysozyme is derived from a deep sea cold spring virus, the sequence and the structure of the virus lysozyme can keep structural stability and activity in extreme environments such as low temperature and high pressure, and the virus lysozyme has relatively good bacterial cell wall lysis capability and bacteriostatic action; the method has important significance on research and development of bacteriostatic agents under special ecological or technological conditions such as low-temperature food preservation, biological processing and ocean engineering.

The invention discloses a deep sea equipment coating with a macroscopic bionic-microcosmic gradient composite structure and a preparation method, the deep sea equipment coating is an integral coating which is formed on the surface of a base material through one-time scanning by using a laser cladding technology to reach a preset thickness, and the coating is macroscopically provided with a periodically arranged bionic structure with an optimized structure design. The microstructure is a gradient structure which is spontaneously formed in the cladding process and mainly comprises equiaxed crystals on the upper surface and columnar crystals on the lower surface. According to the preparation method, a macrostructure is actively designed based on thermal stress, a microstructure is spontaneously regulated and controlled, and an integrated manufacturing process is adopted, so that the process is simplified, the cost is reduced, the comprehensive performance of the coating is improved, and the negative effect in the preparation process is effectively controlled; and a technical path with innovativeness and practicability is provided for long-life protection of equipment in a deep sea extreme environment.

The invention discloses bacillus and a composition and application thereof, and belongs to the field of functional strain screening and application. According to the technical scheme, the bacillus licheniformis is bacillus licheniformis RCLJ-BLI, the bacillus licheniformis is preserved in China Center for Type Culture Collection in Wuhan University, China on April 17, 2023, and the preservation number is CCTCC (China Center for Type Culture Collection) NO: M2023537. The bacillus licheniformis provided by the invention has good stress resistance, can breed in a high-temperature, high-salt and alkaline environment, and reduces the content of ammonia nitrogen in a water body, so that the bacillus licheniformis provided by the invention can adapt to extreme environments of different types of aquaculture tail water in different states, and effectively reduces the content of ammonia nitrogen in the aquaculture tail water. The problem that existing probiotics cannot adapt to unstable and extreme environments of breeding tail water is solved.

The invention discloses a prediction and design method of an extreme environment soil improvement optimal function microorganism complex based on artificial intelligence, and relates to the field of environmental microbiology, and the method comprises the following steps: constructing a multi-dimensional feature, interaction relationship and macroscopic function index database of microorganisms; constructing a multi-index performance prediction model based on a graph neural network based on the multi-dimensional features and interaction relationships of the strains in the database, and training the multi-index performance prediction model based on the macroscopic function indexes; and constructing a comprehensive objective function based on the trained multi-index performance prediction model, taking the comprehensive objective function as a fitness function, and carrying out strain combination design and optimization by using a genetic algorithm to obtain an optimal strain combination. According to the method, the limitation of a traditional method is overcome, and the optimal functional microorganism complex can be efficiently and accurately predicted and designed at low cost.

This disclosure discloses a simulation system for rock weathering in an extreme environment of Mars. The simulation system for rock weathering in an extreme environment of Mars includes a vacuum chamber, a storage structure, a temperature simulation unit, a gas circulation simulation unit, a wind speed simulation unit, and an illumination simulation unit. This disclosure further discloses a simulation test method for rock weathering in an extreme environment of Mars. Compared with the prior art, the simulation system for rock weathering in an extreme environment of Mars prepared by this disclosure can synchronously simulate extreme environments such as a vacuum environment, an atmospheric environment, a temperature environment, an illumination environment, and a sand and dust environment on a surface of Mars, monitors changes such as mass, porosity, and surface deformation of the sample in the weathering process in the extreme environment of Mars of the simulation system.

The present invention relates to a temperature-resistant frame structure for housing devices used in extreme and hazardous environments. The invention provides an article comprising a flat base configured for secure attachment to the housing device and a top unit having a groove that partially conceals and shields the gasket to reduce exposure to heat, dust, and contaminants. The frame is manufactured by a compression moulding process conducted under defined pressure, temperature, and curing conditions to achieve uniform structural integrity and precise groove formation. The flat base ensures stable attachment to the enclosure, while the groove covers a portion of the gasket, extending its operational life and maintaining an effective seal. The resulting frame structure exhibits high thermal stability, durability, and reliable sealing performance, making it suitable for industrial applications requiring continuous protection of internal components under extreme environmental conditions.

The invention discloses a water flow-chilling-sediment-microorganism coupling extreme working condition laser in-situ remediation real-time regulation and control test device and a remediation method, and aims to solve the technical problem that an existing environment simulation device is difficult to simulate complex working conditions. An integrated reaction cavity in the laser in-situ repair real-time regulation and control test device is installed in a pressure-resistant sealed cabin, and a multi-dimensional turbulator and a circulating propeller are arranged in the multi-dimensional extreme environment integrated reaction cavity. The microorganism in-situ planting cabin, the chilling medium storage and supply cabin and the abrasion particle quantitative cabin are respectively communicated with the multi-dimensional extreme environment integrated reaction cavity through connecting pipes; and a laser repairing and monitoring system is arranged at the top of the sealed cabin. The real-time regulation and control test device disclosed by the invention has high environmental simulation and real-time regulation and control capabilities, can independently monitor the repair process under a single working condition of chilling and shock solidification, high-speed turbulence, sediment scouring or microbial corrosion, and can also analyze the defect formation mechanism of the laser cladding layer under the coupling action of four-dimensional extreme working conditions in real time.

The invention discloses a method for evaluating wave-induced seabed liquefaction susceptibility in an extreme environment, and particularly relates to the technical field of ocean geotechnical engineering. The method comprises the following steps: acquiring a multi-period wave energy spectrum sequence, identifying abnormal energy abrupt change points, constructing a disturbance-driven shear stress disturbance field, generating a two-dimensional permeability response matrix in combination with seabed microstructure parameters, coupling to form a three-dimensional shear stress-permeability tensor, and further solving a disturbance-induced pore pressure response function; then, constructing a liquefaction triggering model by adopting fractional Fourier transform, and outputting liquefaction potential density distribution; a liquefaction master control path is identified in combination with the distribution, a liquefaction susceptibility comprehensive index is constructed based on the alignment degree of the path, the geologic horizon and the load direction, and liquefaction high-risk area boundary demarcation is achieved; according to the method, disturbance characteristics, multi-scale structure response and fractional domain modeling technologies are fused, and the method has the advantages of high resolution, real response mechanism, accurate risk identification and the like, and is suitable for seabed liquefaction risk assessment and engineering safety design under extreme sea conditions.

The present application relates to a kind of high-efficiency closed-loop drought-resistant afforestation method specially designed for no road, no water source barren mountain, belong to the technical field of barren mountain ecological restoration.The method first integrally roots pretreatment, unmanned aerial vehicle transportation, planting and water collection, controllable water replenishment, surface soil conservation and equipment recycling six core links, through unmanned aerial vehicle integrated seedling transportation, drip irrigation bag precision water control and geotextile full coverage soil conservation multidimensional cooperation, build the most water-saving, whole-process environmental protection afforestation system.Core equipment can be recycled and reused, realize the complete closed loop of material flow and construction flow, completely overcome the long-term technical bottleneck of traditional afforestation in extreme environment, such as high transportation cost, serious water resource waste, difficult to continue in later period management and protection, etc., seedling survival rate is significantly improved.The present application provides a revolutionary solution for the ecological restoration of arid and semiarid regions, with high survival rate, low environmental load, sustainable operation and economic feasibility, and injects new energy into the afforestation of barren mountains.

The invention relates to the technical field of environment monitoring, in particular to a desert wetland underground humidity and surface wind erosion automatic monitoring method and device, and the device comprises a temperature change rate prediction module, an FIFO buffer preloading module, a hardware trigger direct connection module and a signal synchronization alignment circuit. A temperature compensation value is predicted through a recursive least square method, and humidity signal compensation and sampling alignment of sub-millisecond level delay are realized in combination with a hardware-level synchronization mechanism. According to the application, the problem of data link breakage caused by thermal response lag and MCU interruption delay in an extreme environment by a traditional monitoring means can be solved, the timeliness and precision of a monitoring system are remarkably improved, and the method is suitable for long-term stable monitoring of complex environments such as desert wetland and the like.

The application discloses an extreme environment cooperative simulation system and a control method, and relates to the technical field of intelligent control.The system comprises an environment simulation module, a cooperative control module, an extreme environment mutation module and a structure damage evaluation module.The environment simulation module comprises a wind field simulation unit, a wave flow simulation unit, a salt mist simulation unit and a temperature and humidity simulation unit.The environment mutation coefficient is obtained through the extreme environment mutation module, the tower load, the wind wave angle, the salt mist temperature and humidity and other factors are introduced through the cooperative control module, the environment coupling coefficient is dynamically calculated and graded, the difference parameter linkage rule is corresponded, and the deviation between the simulation and the actual environment is reduced.The extreme environment mutation module is based on the coupling coefficient, adopts the nonlinear logarithmic constraint to quantize the mutation amplitude in combination with the extreme index deviation, matches the marine extreme event characteristics, covers various extreme scenes, and effectively improves the extreme environment simulation quality and the data accuracy.

A material compatibility testing design system and method are disclosed, allowing for the testing of material behavior in extreme environments. The method includes simultaneously exposing a test sample to a first environment and a second environment. The test sample has an outer surface and an inner surface, the inner surface defining an internal volume. The method further includes exposing the outer surface of the test sample to the first environment for a predetermined time, the first environment including a first temperature, a first pressure, and a first composition. The method also includes exposing the inner surface of the test sample to the second environment for a second predetermined time, the second environment including a second temperature, a second pressure, and a second composition.

The utility model belongs to the technical field of reservoir hub engineering, particularly relates to a danger-removing and reinforcing system for reservoir hub engineering, and provides the following scheme aiming at the problems that the existing danger-removing and reinforcing system cannot be dynamically adjusted along with the height of tide water and is limited in application scene: the danger-removing and reinforcing system comprises a wall body, the top end of the wall body is sleeved with a sleeving block, and an anchor rod penetrates out of the inside of the sleeving block. According to the system, induction heat generated by alternating current of the electromagnetic coil acts on the SMA memory spring, so that the SMA memory spring rapidly triggers preset recovery deformation, controllable driving force is generated to push the penetrating rod to slide along the limiting barrel, dynamic adjustment of the height of the wave wall is achieved, and the wave wall can flexibly adapt to complex hydrological scenes of different wave heights, tides and the like; the problem of a protection blind area of a traditional fixed-height wave wall is thoroughly solved, the synchronous air bag attenuates surge impact force through the buffering energy absorption principle, and the impact resistance and fatigue resistance of the structure are remarkably improved; the manual adjustment cost and the operation and maintenance difficulty are reduced, and the protection reliability in an extreme environment is improved.

The invention discloses an environment sensing bionic robot wolf applied to the field of robot wolves, which comprises a control part and a sensing head mounted on the left side of the upper end of the control part, and can accurately sense extreme weather conditions through the cooperation of a traction arc block, an identification protection assembly and an identification protection system. An active protection mechanism for the sensing cover can be automatically activated under a severe weather condition, so that the negative influence of an extreme environment on sensing recognition is remarkably weakened, the environment sensing precision of the sensing nerve acquisition unit is effectively improved, the task execution reliability of the bionic robot wolf under a complex working condition is ensured, and meanwhile, the service life of the bionic robot wolf is prolonged. Data interconnection is achieved through wireless signals and a central control monitoring platform, an efficient information transmission channel is constructed, the integrity and timeliness of environment recognition data are guaranteed, the comprehensive capacity of the bionic robot wolf in the aspect of multi-source information processing is further enhanced, and finally the comprehensive improvement of the environment adaptability and the function efficiency of the bionic robot wolf is achieved.

The invention discloses a multi-dimensional comprehensive evaluation method for microbial diversity of a hot spring, which comprises the following steps: collecting a water sample, a sediment and a biological membrane along the temperature gradient of the hot spring to form a sample, and carrying out pretreatment and in-situ fixation on the sample; carrying out metagenome, metatranscriptome and amplicon sequencing treatment on the sample; calculating three-dimensional indexes of a structural stability index SSI, a functional activeness score FAS and abundance of an environmental adaptability gene set through multi-omics integration analysis; and generating a biodiversity comprehensive evaluation report through a three-dimensional index based on the environmental adaptation index EAI. According to the method, three-dimensional quantitative analysis of structure-function-environment adaptability is realized. Through multi-omics stack analysis and environment factor coupling modeling, the problem of integrity deficiency of extreme environment biological resource evaluation is solved.

The invention provides a dam data real-time correction method suitable for an extreme environment condition, which comprises the following steps: S1, synchronously acquiring multi-modal sensing data through a ground-based synthetic aperture radar (GB-SAR) system and a distributed environment sensor array, and carrying out time synchronization and preprocessing on the multi-modal sensing data, generating single-vision complex image SLC data with an accurate timestamp and environment sensing data; s2, on the basis of the SLC data and environment sensing data, a dynamic stable scatterer network DSSN is constructed and self-adapted, and the DSSN is composed of dynamic stable scatterer DSS points screened out through multi-dimensional stability evaluation; s3, separating and correcting an atmospheric phase delay error by using the SLC data, the environmental sensing data and the DSSN in a multi-source cooperative mode; and S4, based on the corrected phase data and the DSSN, executing high-efficiency deformation unwrapping and resolving, and outputting corrected dam real-time deformation data.

The invention discloses a net cage typhoon resistance toughness enhancing method, which belongs to the technical field of mariculture equipment, and comprises the following steps: establishing a three-dimensional fluid-structure interaction model, calculating a fluid-structure interaction load, quantifying the spatial and temporal distribution characteristics of the coupling load on a net cage, simulating the stress-strain response of a net cage structure, and positioning the weak part of the net cage. The method comprises the following steps: identifying a failure conduction path, designing three-stage enhancement measures to enhance toughness in combination with spatial and temporal distribution characteristics and an identification result of the failure conduction path, carrying out a simulation test, verifying structural stability, and carrying out closed-loop optimization according to a verification result. Meanwhile, the structural integrity maintaining capacity of the net cage in the typhoon environment is remarkably improved, high-grade typhoon impact can be resisted, economic losses caused by typhoon disasters are reduced, a new paradigm is provided for extreme environment resisting design of mariculture equipment, and remarkable industrial value and social benefits are achieved.

The invention discloses an underwater in-situ degassing device suitable for deep sea extreme environment, which comprises an upper end cover and a lower end cover, the upper end cover is provided with a sample introduction chamber, the sample introduction chamber is provided with a liquid sample introduction port and a liquid discharge port, the lower end cover is provided with a sample discharge chamber, the sample discharge chamber is connected with a gas outlet, and the sample introduction chamber and the sample discharge chamber are correspondingly matched and connected to form a pressure-resistant cavity. A waterproof breathable film, a filter screen and a porous bearing plate are sequentially arranged in the pressure-resistant cavity in the direction from the sample feeding bin to the sample discharging bin. The device is provided with a lightweight pressure-resistant cavity and a creep-resistant dynamic sealing structure, so that the risks of material embrittlement, insulation failure and leakage in an extreme environment are solved; aiming at a multi-phase system in which free-state and dissolved-state gases and suspended particles coexist in deep-sea fluid, dynamic capture and original proportion fidelity of multi-component gases are synchronously realized, and a key support is provided for deep-sea resource development, ecological environment assessment and disaster early warning.