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81 results about "Extreme environment" patented technology

An extreme environment is a habitat that is considered very hard to survive in due to its considerably extreme conditions such as temperature, accessibility to different energy sources or under high pressure. For an area to be considered an extreme environment, it must contain certain conditions and aspects that are considered very hard for other life forms to survive. Pressure conditions may be extremely high or low; high or low content of oxygen or carbon dioxide in the atmosphere; high levels of radiation, acidity, or alkalinity; absence of water; water containing a high concentration of salt or sugar; the presence of sulphur, petroleum, and other toxic substances.

Ecological environment inspection and detection information management system based on environment AI large model

The invention discloses an ecological environment inspection and detection information management system based on an environmental AI large model, and relates to the technical field of data management. A data acquisition module is used for collecting extreme weather and pollutant data in real time; the feature extraction module converts the data into a new feature set, the convolutional neural network training module trains the features and historical data, the generalization ability of the model under extreme conditions is evaluated through the A / B test module, and then the model is divided into a high generalization ability level and a low generalization ability level; the model with high generalization ability is retrained regularly through real-time data feedback, and the model with low generalization ability generates an early warning signal on the basis of prediction accuracy analysis and takes corresponding emergency measures; the technical problem that historical data cannot comprehensively cover future environment changes is effectively solved, the response speed and accuracy of an environment management department to extreme environment changes and sudden pollution events are improved, and potential ecological and public health risks are reduced.
Owner:QINGDAO XIZHENG DIGITAL TECH CO LTD

Intelligent fish blocking and ship passing system based on multi-mode AI fusion and self-adaptive control

The invention relates to an intelligent fish blocking and ship passing system based on multi-mode AI fusion and self-adaptive control, and belongs to the field of water conservancy projects and intelligent control. Aiming at the problems that a traditional electric fish blocking device is low in ship communication efficiency, poor in environmental adaptability and high in maintenance cost, a multi-mode sensor (laser radar, sonar, infrared thermal imaging and the like) fusion technology is adopted, and a reinforcement learning optimization proportion-integral-differential (PID) control parameter and a graph neural network (GNN) path planning algorithm are combined. All-weather high-precision sensing and dynamic gate regulation and control are realized; and equipment faults are predicted through a long short-term memory (LSTM) model, so that the shutdown risk is reduced. According to the system, the ship dredging efficiency is improved by 25%, the accident rate is reduced by 70%, the maintenance cost is reduced by 40%, the system adapts to extreme environments, and intelligent water conservancy construction is supported.
Owner:SOUTHWEST UNIV

Charging pile extreme environment test method based on composite stress simulation, terminal and storage medium

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.
Owner:SHANDONG ARTAPLAY INTELLIGENT TECH CO LTD

Deep and far sea wind power foundation platform and load integrated system under extreme environment condition

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.
Owner:NINGBO UNIV +1

Microorganism culture tank device and culture method thereof

The invention relates to the technical field of microorganism culture, and discloses a microorganism culture tank device which comprises a culture tank, a concave observation area is arranged in the center of the top of the culture tank, a central culture area surrounding the observation area is arranged in the culture tank, an oil path temperature control area wraps the culture tank, and a double-helix heat conduction oil path is integrated in the oil path temperature control area. Through the cooperation of the uniform distributor and the distributed simulated liquid conveying unit, the gas-liquid proportion and fluid distribution can be accurately regulated and controlled, the physical and chemical conditions in the deep sea or extreme environment are simulated, the constant-temperature precision of + / -0.005 DEG C is realized through the double-helix heat conduction oil way, the low-temperature environment is stably maintained, and the real thermodynamic conditions of deep-sea sediments are simulated; the device meets the sensitive requirements of different microorganisms on temperature, and has the characteristics of high practicability and capability of simulating a dynamic fluid environment of deep sea.
Owner:ZHONGRUN (JILIN) ECOLOGICAL AGRI TECH CO LTD +1

Multifunctional rock-soil mechanical testing system for controlling temperature, humidity and salinity in extreme environment

The invention discloses a multifunctional geotechnical mechanical testing system for controlling temperature, humidity and salinity in an extreme environment, and relates to the technical field of ocean geotechnical engineering and geotechnical engineering. The system integrates a high-precision temperature and humidity and salinity control system, can accurately simulate the influence of complex environments such as extreme temperature and humidity, salt spray corrosion and the like on the mechanical properties of geotechnical materials, supports a direct shear test, a pull-out test, a soil body single-particle crushing test and a geosynthetic material stretching and puncturing test, can distinguish static, dynamic and long-term creep test modes, and can be used for testing the mechanical properties of the geotechnical materials. Comprising creep mechanical property testing under cyclic direct shear and continuous load. A visual monitoring assembly is additionally arranged, so that the microscopic deformation and damage process of the sample can be recorded in real time. Through multifunctional integration, temperature, humidity and salinity joint control, visual monitoring and dynamic and static coupling test devices, the technical bottlenecks of single function, environment simulation limitation and microcosmic observation deficiency of traditional equipment are solved, and high engineering application value and popularization potential are achieved.
Owner:SHANGHAI MARITIME UNIVERSITY

Test box for simulating environment

The invention discloses a test box for simulating an environment. The test box comprises a box body, a single-stage refrigeration system, a cascade refrigeration system, an environment monitoring system and a control system. The box body comprises a testing space and a working space which are communicated, and the testing space is used for placing a to-be-tested product; the environment monitoring system is used for monitoring the temperature and humidity in the test space; when a first extreme environment of a to-be-tested product is simulated and tested, a control system firstly controls a single-stage refrigeration system to be started and a cascade refrigeration system to be closed, so that the temperature and humidity in a test space reach an intermediate critical environment; and then the control system controls the single-stage refrigeration system to be closed and the cascade refrigeration system to be started, so that the temperature and the humidity in the test space are reduced to the first extreme environment from the intermediate critical environment. According to the scheme, on the basis that the gas environment is not changed, simulation of the extreme environment can be achieved without external connection of other devices, the requirements of the to-be-tested product during environment testing are met, and the testing complexity and the testing cost are reduced.
Owner:SHANGHAI POWER EQUIPMENT RESEARCH INSTITUTE CO LTD

Dynamic adjusting method for concentration of hydrogen-rich water

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.
Owner:JILIN MAOXI AGRI TECH CO LTD

Mine ecological restoration modifier based on special soil of loess plateau

The invention relates to the technical field of soil science, and discloses a loess plateau special soil-based mine ecological restoration modifier which is prepared by the following steps: mixing a biological material and an inorganic material to form a biological-physical compound; inoculating specific microorganisms which are subjected to multi-layer packaging into the compound; organic matters and inorganic matters are fixed by utilizing a cross-linked polymer network to form a multi-layer structure; performing intelligent responsive coating treatment on the modifier particles; the prepared modifier is subjected to laboratory and field tests to verify the adaptability and effect of the modifier, and the biological-physical compound is prepared by mixing a local organic material with a certain water content with nano-modified bentonite according to a mixing ratio of 3: 1. By integrating the functionalized nanoparticles, a microbial packaging technology and an intelligent responsive coating, the soil water-retaining property, the nutrient utilization rate and the biological diversity are improved. The design ensures the stability and the lasting effect in an extreme environment, and meanwhile, continuous and efficient ecological restoration is realized.
Owner:CHINA RAILWAY 19 TH BUREAU GROUP MINING IND INVESTMENT CO LTD

Stress-tolerant bacillus velezensis L-29 and application thereof

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.
Owner:CHINA AGRI UNIV +1

High-pressure diving suit detection device and detection method

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.
Owner:CHINESE PEOPLES LIBERATION ARMY NAVAL SPECIALTY MEDICAL CENT

Extreme environment deep sedimentary rock soil layer test platform and construction method

The invention discloses a test platform for a deep sedimentary rock soil layer in an extreme environment and a building method. The test platform comprises a vacuum base, a hollow transparent cover, a vacuum top plate, a first temperature control assembly, a second temperature control assembly, a plurality of sample loading assemblies and a plurality of gas filling pipes, one end of the hollow transparent cover is fixed on the vacuum base, and the other end is fixed on the vacuum top plate to construct a vacuum environment; the first temperature control assembly is fixed to the top face of the vacuum base, the second temperature control assembly is fixed to the bottom face of the vacuum top plate, the multiple sample loading assemblies are sequentially stacked between the first temperature control assembly and the second temperature control assembly till the target height is reached, and each sample loading assembly is filled with a corresponding simulated rock-soil sample. Confining pressure is applied to the simulated rock-soil sample through the inflation pipe, so that the deposition state of a deep rock-soil layer on the surface of an extraterrestrial planet is truly simulated, a test platform is provided for a ground simulation drilling test, and the feasibility of a deep drilling technology is verified.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI

Compound microbial additive suitable for alpine regions and preparation method thereof

The invention relates to the technical field of compound microbial additives, and particularly discloses a compound microbial additive suitable for alpine regions and a preparation method, the additive comprises microbial thalli, a protective agent and a carrier; the microorganisms are low-temperature-resistant nitrogen-fixing bacteria, cold-resistant phosphate-solubilizing bacteria, cold-resistant potassium-solubilizing bacteria, low-temperature-resistant plant growth-promoting rhizobacteria and cold-resistant streptomyces; the selected microbial strains are all derived from extreme environments of the alpine regions, are naturally selected and artificially domesticated for a long time, and have extremely strong adaptability to severe conditions such as low temperature and oxygen deficit of the alpine regions. Compared with the existing microbial additive in the market, the growth rate and metabolic activity of the microbial strain in the additive are kept at a relatively high level in a low-temperature environment of 0-15 DEG C.
Owner:CHANGDU LANTIAN SHENGJIE BIO ORGANIC FERTILIZER CO LTD

Pipeline external protection mechanism in extreme environment

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.
Owner:THE SECOND CONSTRUCTION CO LTD OF CHINA CONSTRUCTION THIRD ENGINEERING BUREAU

Deep sea in-situ culture device

The invention relates to the technical field of deep-sea microorganisms, and particularly discloses a deep-sea in-situ culture device which comprises a protective shell, a cavity is formed in the protective shell, a water inlet and a gas conveying mechanism are arranged on the cavity, the gas conveying mechanism comprises a gas outlet pipe, a pressure swing adsorption oxygen generator is connected to the protective shell, and the pressure swing adsorption oxygen generator is connected to the protective shell. A first gas conveying pipe is connected to the pressure swing adsorption oxygen generator, a gas concentration detector and an exhaust pipe are connected to the first gas conveying pipe, a gas outlet pipe is arranged on the exhaust pipe, a protection plate and a culture mechanism are further arranged on the protection shell, and the culture mechanism comprises a first culture tank, a second culture tank and a third culture tank. According to the device, the gas conveying mechanism is matched with three independent culture units of a first culture tank, a second culture tank and a third culture tank in the culture mechanism, so that the device has the capability of carrying out a multi-dimensional experiment, and the suitability of the device to deep-sea biology multi-dimensional research requirements is remarkably improved; and an efficient experimental platform is provided for living strategies of organisms in an extreme environment.
Owner:HANGZHOU DIANZI UNIV

Method and device for storing human DNA using the minus 196° temperature in space

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.
Owner:ALIENWORKS SA

Deep-sea microorganism enrichment culture and mineral reaction integrated device

The invention discloses a deep-sea microorganism enrichment culture and mineral reaction integrated device, belongs to the field of microorganism equipment, and aims to solve the problems that deep-sea extreme microorganism resource development is limited and mineral reaction research and observation are difficult. A metabolite and an enzyme system of the strain have remarkable application value, but a traditional enrichment method is limited by extreme environments such as high pressure, low temperature and oligotrophic environments, and efficient development is difficult to realize; in addition, deep sea mineral reaction related research is blocked due to difficult direct observation and lack of in-situ observation equipment. The device comprises a microorganism enrichment culture device and a mineral reaction device, the microorganism enrichment culture device is used for suction filtration and enrichment of deep sea microorganism samples and can collect in-situ water samples; the mineral reaction device is used for researching the interaction between the deep sea extreme environment and a mineral sample.
Owner:SECOND INST OF OCEANOGRAPHY MNR

A construction method for a stratum adjacent to a horizontal foundation surface of a nuclear island

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.
Owner:CHINA NUCLEAR HUAXING MECHANIZATION ENG CO LTD +1

Thermal performance testing device for horizontal section of deep U-shaped well

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.
Owner:NORTHEAST GASOLINEEUM UNIV

A method and system for assessing extreme environmental conditions for coastal engineering

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.
Owner:HOHAI UNIV +1

A monitoring matrix for monitoring the water level of a dam

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.
Owner:CHENGDU WANJIANGGANGLI TECH

Streptococcus sp. Strain and application thereof

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.
Owner:CHINA NAT PETROLEUM CORP

Virus lysozyme from deep sea cold spring as well as preparation method and application of virus lysozyme

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.
Owner:THIRD INSTITUTE OF OCEANOGRAPHY STATE OCEANI C ADMINISTRATION

Deep sea equipment coating with macroscopic bionic-microscopic gradient composite structure and preparation method

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.
Owner:OCEAN UNIV OF CHINA

Bacillus and composition and application thereof

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.
Owner:SHANDONG ACAD OF MARINE SCI (QINGDAO NAT MARINE SCI RES CENT)

Design and manufacturing method of pipe joint component of offshore wind power jacket

The invention relates to an offshore wind power jacket pipe joint component design and manufacturing method, which comprises the following steps of: establishing a pipe joint parameterized geometric model by taking a deep sea shellfish shell growth mechanism as an initial topological structure; inputting the extreme environmental parameters of the sea area into a pre-constructed GAN model, performing fitting training by a generator in the GAN model, and outputting a gradient material space distribution scheme of jacket pipe nodes; performing optimization processing on the gradient material space distribution scheme based on a multi-target genetic algorithm to obtain an optimal solution of a target stress gradient and material distribution; by utilizing the growth mechanism of a deep-sea shellfish shell, the topological design of the pipe joint is realized, a large number of structural simulation analysis data and parameters are provided, the wall thickness of a steel plate of the pipe joint can be obviously reduced, the stress concentration phenomenon at the pipe joint is changed, the fatigue performance of the joint is improved, and meanwhile, the comprehensive manufacturing cost of the overall structure of the jacket is greatly reduced.
Owner:DONGFANG ELECTRIC(FUJIAN)INNOVATION INST CO LTD

Microbacterium and application thereof in enrichment and separation of lithium in low-quality brine

The invention belongs to the technical field of microorganisms and environmental protection, and particularly relates to a microbacterium strain and application thereof in enrichment and separation of lithium in low-quality brine. The strain is preserved in the China Center for Type Culture Collection on February 17, 2025, and the preservation number is CCTCC NO: M 2025230. Experiments prove that the microbacterium can specifically and selectively adsorb and enrich a large amount of lithium from typical low-quality brine thick oil produced water, and meanwhile, the strain is screened from an extreme environment, so that the strain has good tolerance to environmental stress such as high and low temperature, salinity and the like; the method can be used for lithium enrichment and separation of low-quality brine, especially thick oil produced water, and has practical application value for sustainable and eco-friendly development of the lithium industry.
Owner:SHANDONG UNIV

Prediction and design method of extreme environment soil improvement optimal function microorganism complex based on artificial intelligence

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.
Owner:ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER

Digital human-oriented ultralimit multi-mode microenvironment simulation system and interaction method

The invention discloses a digital human-oriented ultralimit multi-mode microenvironment simulation system, which dynamically generates ultralimit geological and climatic environments such as volcano, hurricane and extremely cold and extreme environments such as air / gravity / atmospheric pressure / sunlight irradiation / radiation exceeding the earth normal state, and combines a digital human injury-adaptation model and multi-mode interaction logic. And the limit test and experience of the digital human in the virtual world are realized. The innovation of the method comprises: 1) an overrun environment parameter generation technology (supporting thousand times of environment intensity of reality); the system is suitable for the fields of virtual tourism, space research, old people behavior analysis and the like, and standardization and commercialization of the digital human technology are promoted.
Owner:向开阳

Simulation system and simulation test method for rock weathering in extreme environment of mars

PendingUS20260177472A1Weather/light/corrosion resistanceRock weatheringVacuum chamber
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.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI