14results about How to "Reduce ecological damage" patented technology

The invention relates to the technical field of concrete wall materials, and discloses a recycled concrete wall material and a preparation method thereof, the recycled concrete wall material comprises the following components by weight: 300-500 parts of recycled coarse aggregate, 200-400 parts of recycled fine aggregate, 150-300 parts of cement, 30-80 parts of fly ash, 3-8 parts of a water reducer, 5-15 parts of reinforced fiber, and 20-30 parts of a modified composition. Comprising the following steps: S1, raw material pretreatment, S2, mixing and stirring, S3, molding and curing, and S4, quality detection. The building waste is efficiently utilized, exploitation of natural aggregate is reduced, energy consumption and carbon emission in the production process are reduced, the landfill amount of the building waste and land occupation are reduced, the material strength and durability are good, the waterproof performance is improved, and the crack resistance and seismic resistance of the wall are enhanced.

The invention relates to the technical field of remote sensing, and discloses a remote sensing ecological index assessment method based on deep learning, which comprises the following steps: acquiring Landsat remote sensing image data and land utilization data of a research area, and extracting remote sensing ecological index factors of the land utilization data and the preprocessed Landsat remote sensing image data; normalizing the remote sensing ecological index factors and performing dimension reduction analysis to obtain dimension-reduced remote sensing ecological index factors, inputting the dimension-reduced remote sensing ecological index factors into a time sequence convolutional network model, and generating a comprehensive feature vector through causal convolution, extended convolution and global average pooling operations; performing linear combination on the comprehensive feature vector and the principal component analysis feature value, and constructing a time sequence convolutional neural network remote sensing ecological index model for evaluating the ecological environment quality condition of the research area; according to the method, the accuracy, the reliability and the practicability of remote sensing ecological index evaluation are improved by adding the remote sensing ecological landmark factors reflecting human disturbance and water environment change and constructing the time sequence convolutional neural network remote sensing ecological index model.

The invention relates to the technical field of thermal insulation materials, in particular to a ceramic gel phase change energy storage self-thermal insulation structure and a preparation method thereof.Silicon dioxide sol and zirconium dioxide sol are mixed and then added with paraffin to prepare a phase change material, and the phase change material has the effects of enhancing the heat conduction performance and improving energy storage; the silicon dioxide and the zirconium dioxide both have good heat conduction performance, the heat conduction efficiency of the paraffin serving as the phase change material can be remarkably improved by mixing the silicon dioxide and the zirconium dioxide with the paraffin, heat can be transmitted and distributed in an energy storage structure more quickly, and the porous structure with high porosity serves as a carrier to bear the phase change material; the uniform distribution of heat can be facilitated, so that the heat-conducting property of the energy storage structure is further enhanced; the carbon fibers and the steel fibers are dispersed in the polyvinyl chloride to improve the strength of the polyvinyl chloride, and then the surface of the ceramic gel structure is coated with the polyvinyl chloride to package the phase-change material in the porous ceramic, so that the situation of leakage or performance degradation of the phase-change material is prevented to a certain extent.

The invention provides a construction method of a multi-element solid waste-based cementing material roadbed filler, and relates to the technical field of road engineering, and the construction method comprises the following steps: S1, selecting raw materials: fly ash, slag powder, carbide slag powder, desulfurized gypsum powder, gasified slag powder, coal gangue powder, steel slag powder, tailing powder, coal cinder powder, building solid waste powder and municipal waste powder; s2, raw material pretreatment; s3, preparing a composite exciting agent: preparing sodium sulfate, calcium hydroxide, calcium chloride, calcium sulfate, sodium silicate and sodium hydroxide; s4, preparing a composite exciting agent solution; s5, preparing a multi-element solid waste-based cementing material: uniformly mixing the raw materials pretreated in the step S2 with the composite activator prepared in the step S4 according to a ratio; s6, roadbed laying, wherein a sodium bentonite waterproof blanket is laid on the bottom layer of the roadbed and then laid; s7, geogrids are laid; s8, maintenance is conducted; through fine selection and proportioning of the raw materials, efficient resource utilization of various industrial solid wastes is realized.

The invention discloses a marine empennage, which relates to the technical field of ships, and comprises a ship shell of a wave-shaped flat bottom structure, and the upper end of the ship shell is fixedly connected with a deck used for covering the space in a ship and horizontally dividing the space into layers; the side, close to a deck, of the hull is fixedly connected with a cabin used for storing materials and allowing sailors to work and live, the outer wall of the side, away from the cabin, of the hull is fixedly connected with an empennage plate body used for keeping course stability and providing rotation or trim adjusting capacity, and dynamic wingspan expansion mechanisms are arranged on the two sides of the upper end of the empennage plate body. An arc wing guide swing mechanism is arranged at the center of the upper end of the empennage plate body, a trapping screen wing mechanism is arranged on one side of the tail end of the empennage plate body, plate wings and an electric telescopic rod are matched with each other, and the stress area of the empennage can be increased by improving the sailing performance and expanding the wingspan; therefore, larger lift force is generated under the condition of the same wind speed or water flow.

The utility model relates to the technical field of river side slopes, in particular to a flood control device for a river side slope. Comprising a vertical part and an inclined part at the upper end of the vertical part, the upper end of the inclined part inclines towards the outer side of a river channel, the vertical part and the inclined part are integrally formed to form a slope protection part, the slope protection part is hollow, the upper end of the inclined part is open, and a plurality of through holes are formed in the side, facing the river channel, of the inclined part in a rectangular array. A supporting plate is fixed to the portion, below each row of through holes, of the inclined part, and a groove and a protruding edge are arranged at the two ends of the protection slope correspondingly and correspond to each other. And the vertical part and the inclined part are integrally formed, so that the problem of weak joints of a traditional segmented structure is solved, and the overall anti-scouring capacity is enhanced. The grooves and the convex edges of the adjacent protection slopes are quickly embedded to form a continuous and compact protection surface, so that the risks of water flow permeation and local damage are reduced, and the protection structure is particularly suitable for river channels with high silt content.

The present invention discloses a marine emergency analysis and response decision system, which relates to the technical field of marine ecological data analysis, including: a data acquisition module for collecting time series data of influencing factors of red tide organisms in a monitoring area; a basic risk assessment module for assessing the basic risk index of red tide organism outbreaks in each monitoring area; a risk coefficient assessment module for assessing the risk coefficient of red tide organism outbreaks in each monitoring area; a state correction module for correcting the basic risk index of red tide organism outbreaks in the monitoring area using the risk coefficient of red tide organism outbreaks in the monitoring area, and obtaining the risk index of red tide organism outbreaks in each monitoring area; a monitoring module for judging whether the red tide outbreak risk index in each monitoring area exceeds the tolerable threshold of red tide in the corresponding monitoring area, and if so, issuing an alarm. The advantages of the present invention are: it can warn of red tide risks in advance and reduce the economic losses and ecological damage caused by red tide disasters.

The present application relates to a kind of green prediction method and device of mineral based on cross-domain self-adaptation and multimodal fusion, belong to mineral resources exploration and remote sensing technical field.Multiple-source data is obtained, input transfer learning module learns transferable model parameters, the data obtained is fused through modal gating network, then through graph construction model constructs line mapping, and is enhanced using graph convolution network;After enhancement, multimodal data is input into the Transformer encoder of embedded graph convolution network, extract the spatial topology structure and spectral feature of mining area, obtain the potential probability graph of ore body through the prediction head prediction;Environmental risk assessment model is built, " maximum of ore body prediction accuracy " and " minimum of environmental risk " are realized through multi-objective optimization, and the accuracy of ore body prediction is verified through drilling activity.This method not only improves the regional generalization ability of model, but also realizes green mineral exploration and the interpretability of result, improves the precision, efficiency and sustainability of mineral exploration.

The embodiment of the invention provides a method and device for predicting the failure frequency of a pipeline, equipment and a storage medium, and belongs to the field of pipeline integrity management. In the method, the future failure frequency is predicted based on the historical use failure condition of the pipeline. Individual conditions of the pipelines are fully considered, and compared with the fact that unified failure frequency is adopted for the pipelines with the same parameters or the same model, the method is more accurate and more beneficial to guiding workers to maintain and replace the pipelines, and economic losses and ecological damage caused by pipeline failure are reduced.

The invention discloses a method for treating spartina alterniflora at a river estuary, and belongs to the technical field of ecological environment engineering. The method comprises the following steps: cutting off spartina alterniflora in the dormancy period of autumn and winter, covering the spartina alterniflora by using a waterproof cloth for one year, and recycling the waterproof cloth for secondary utilization; wherein the seams of the grass-proof cloth are spliced in an overlapping manner. According to the method, excessive large equipment is not needed in the whole treatment process, the situation that a construction area is messy by means of deep ploughing, root digging, deep burying and the like is avoided during construction, the growth rhythm of the spartina alterniflora is utilized, the spartina alterniflora is treated according to the growth rhythm of the spartina alterniflora, the treatment effect is good, meanwhile, water permeability and air permeability are good, soil texture is not affected, and the method is suitable for large-scale popularization and application. Water can be rapidly drained in rainy seasons and urgent rain weather, and the waterlogging influence is prevented.

This invention discloses a method for actively filling pillarless self-forming roadway in ultra-high mining faces by cutting, breaking, and expanding the roof. It belongs to the field of coal mining technology. The method uses a multi-directional expansion and fracturing method of the roof, backfilling of coal gangue after the working face is erected, and advanced vertical high-level grouting on the surface to three-dimensionally control the unfilled space in the pillarless self-forming roadway method. This solves the problem of instability caused by large unfilled space in the surrounding rock of the roadway under ultra-high mining conditions. It avoids geological disasters such as large deformation of the surrounding rock, rockburst, and coal and gas outburst caused by stress concentration above the coal pillar. It also reduces mining damage and ecological damage to the entire mine goaf.

The utility model relates to the technical field of biological deodorization, and discloses an efficient intelligent biological deodorization and waste water resource recycling system which comprises a water tank, and a deodorization bin is fixedly installed on the right side of the top end of the water tank. According to the efficient intelligent biological deodorization and waste water resource recycling system, the key problem that traditional biological deodorization waste gas is difficult to uniformly contact with microorganisms is solved by adopting a staggered distribution structure of the filler plates in the deodorization bin, and in a biological filtration link, malodorous gas can uniformly and stably flow between the filler plates, so that the biological deodorization effect is improved. The device effectively avoids the appearance of an area with too fast or too slow flow velocity, enables the gas to be in full contact with microorganisms in the filler, greatly prolongs the retention time of the waste gas, further remarkably improves the decomposition efficiency of the microorganisms on malodorous substances, and can further irradiate the waste gas to achieve the deodorization and sterilization effects due to the design of the ultraviolet lamp. And the deodorization effect is qualitatively improved.

This invention relates to the field of microbial inoculants, and particularly to a compound inoculant for controlling soil-borne diseases in farmland based on endophytic bacteria, and its preparation method. The compound inoculant is composed of a main inoculant, auxiliary inoculants, and a fungicide. The main inoculant includes *Talaromyces sp. strain HBUM07170*, *Rhizobium sp. NXC24*, and *Methylobacterium brachiatum*, while the auxiliary inoculants include *Mycobacterium sp.*, *Caulobacter sp.*, *Penicillium sp.*, and *Pyronema omphalodes*, with each strain having a concentration of not less than 10%. 8 The concentration of CFU / ml is 1:1 (main bacterial agent mixture to auxiliary bacterial agent mixture), and tebuconazole is used as the fungicide. During preparation, each bacterial strain is activated and cultured separately, then mixed according to the specified volume ratio before adding tebuconazole and stirring to dissolve. This invention's compound bacterial agent exhibits synergistic effects among the bacterial strains, effectively antagonizing Fusarium oxysporum, reducing the incidence and mortality of lily wilt, and promoting plant growth. It combines biological control with chemical-assisted antibacterial effects and can be used in the preparation of control formulations for soil-borne diseases in farmland and lily wilt.

The present invention discloses a method for the treatment of historical mine pits, and relates to the technical field of ecological restoration of historical industrial and mining wastes. The steps include: on the basis of collecting data on natural geography, hydrometeorology, engineering geology, environmental ecology, etc. involved in the historical mine pits and surrounding areas, comprehensively evaluating the basic characteristics of the historical mine pits, such as geological conditions and spatial morphology, and the physical and chemical properties of the backfill materials existing around the mine pits and their continuous impact on the surrounding environment. Through scientific calculation and comprehensive planning, the most suitable backfill materials are selected, and ecological backfilling is carried out nearby, thereby improving the utilization rate of idle resources, reducing waste and additional treatment costs, reducing the occupation of existing land by mine solid waste, and achieving significant ecological benefits. In addition, the backfill plan is optimized to create conditions for subsequent land development, farmland reclamation and economic development, bringing potential social and economic benefits.