3214results about How to "Easy construction" patented technology

A system and method is described for internationalization of web pages by extracting translatable content from extensible mark-up language (XML), or similar data-centric meta-language representations of web pages or data used to build web pages. The extracted translatable content is stored in a translation task repository (TTR) accessible by the web developer and the translator. The XML representation is then modified to include selection control logic to select the appropriate translations for insertion into the final web page. The translator accesses the TTR to translate the appropriate content and saves the translations back to the TTR associated with the original translatable data. The translations are obtained from the TTR as selection cases for the selection control logic of the XML representation. As the XML is converted into the web source code, the selection logic and translations are embedded therein facilitating building the web site in multiple different languages.

The invention relates to the technical field of brain-computer interfaces, and discloses a self-adaptive dynamic feedback brain-computer interface training method and system based on virtual reality. The training method comprises the steps that a user performs motor imagery according to a training scene presented by the VR display device; the electroencephalogram acquisition equipment acquires electroencephalogram signals; configuring a data processing module, and operating a motor imagery continuous control model to calculate characteristic parameters by taking the electroencephalogram signals as input; under the condition that the task exists, the characteristic parameters are used as input, and a dynamic self-adaptive characteristic-feedback mapping model is operated to calculate control parameters; sending the control parameters to a functional electrical stimulation device to load electrical stimulation of corresponding intensity to the muscle to obtain tactile feedback; meanwhile, the dynamic adaptive feature-feedback mapping model is dynamically updated according to latest input feature parameters; the control parameters are sent to the VR display device to present visual feedback, and the user adjusts the motor imagery based on the visual feedback and the haptic feedback. The participation sense of the user and the training efficiency can be improved.

The invention relates to the technical field of building materials, and particularly discloses high-strength lightweight concrete containing hollow glass beads and a preparation method of the high-strength lightweight concrete. The high-strength lightweight concrete containing the hollow glass beads is prepared from cement, fly ash, carbon fiber grafted hollow glass beads, lightweight sand, deionized water, polypropylene fiber grafted rubber particles and a water reducing agent according to the mass ratio of (58-75): (25-38): (45-65): (20-40): (42-55): (35-55): (5-12) through mixing, mold filling, vibration molding, covering and demolding. The addition amount of the hollow glass beads is strictly controlled, the influence on the overall strength of the concrete is avoided, the density and weight of the concrete are reduced due to the addition of the light sand and the hollow glass beads, the compactness and integrity of the concrete are improved due to the synergistic effect of the two added fibers, and the raw materials have excellent cohesiveness; the concrete can effectively absorb and disperse stress, and has the advantages of excellent strength, light weight, good durability and excellent comprehensive performance.

The invention provides an anchor rod with a barb structure and a construction method.The anchor rod comprises a hollow anchor rod body, a core rod arranged in the anchor rod body and a barb part arranged on the outer side of the anchor rod body, and the length direction of the core rod is the same as that of the anchor rod body; the multiple barb parts are arranged in the length direction of the anchor rod body at intervals, a plurality of barb pieces are arranged on each barb part at intervals, and the barb pieces are obliquely arranged on the anchor rod body. And barb pieces are arranged at the positions, corresponding to the barb parts, of the core rod. According to the anchor rod with the barb structure and the construction method, the core rod is arranged in the hollow anchor rod body, and the barb pieces and the barb pieces are matched to form a special composite stress form, so that the overall pulling resistance of the anchor rod is effectively improved, the construction cost is reduced, and the construction period is shortened; and as the designed length of the anchor rod is obviously shortened, disturbance to the surrounding environment is reduced, and pollution to the environment is reduced.

The invention provides an inhaul cable vibration control device and a vibration control method. The device comprises a speed type damping unit and a tuned mass damping unit, the speed type damping unit and the tuned mass damping unit are arranged close to the cable beam anchoring end of the inhaul cable, the speed type damping unit comprises two speed type dampers, and the two speed type dampers are symmetrically arranged on the two sides of the cable face of the inhaul cable; the two ends of the speed type damper are connected with the inhaul cable and the ground respectively. The method comprises the following steps: determining the relative arrangement positions of a speed type damping unit and a tuned mass damping unit on the inhaul cable according to the determined broadband vibration order and narrow-band vibration order of the inhaul cable; and configuration parameters of the speed type damping unit and the tuned mass damping unit are determined, the inhaul cable is configured according to the determined damping coefficient of the speed type damper and the cable direction installation positions of the speed type damping unit and the tuned mass damping unit, and vibration control is achieved through the configured inhaul cable. The method has the advantages of guaranteeing the vibration reduction effect of the inhaul cable, being convenient to construct and the like.

The invention discloses a power generation equipment fault diagnosis method based on a large language model. According to the method, firstly, an expert knowledge base is converted into a fault knowledge base composed of criterion nodes and edges, and fault retrieval is completed through the knowledge base; synthesis of natural language texts is completed by using input based on text function segmentation, cue word templates are constructed based on calculation types of different criteria, and a large model is promoted to complete calculation reasoning tasks of the criteria; multi-dimensional equipment state monitoring time sequence data are input, a cue word set at the current time is automatically generated in combination with the cue word template, the cue word set is input into a large language model for computational reasoning, and a current state set of equipment is generated; using a knowledge base to retrieve the state set to obtain a fault diagnosis result; and then a visualization system is designed to collect and visualize a large model output result and a fault diagnosis result, and input and interaction interfaces are provided for cue word template construction. The fault diagnosis completed by the method has good practicability and expansibility.

The invention discloses a safety monitoring method and system for a construction area, and relates to the field of construction safety monitoring, and the main scheme is as follows: collecting multiple types of data of the construction area in real time; respectively calculating a safety helmet identification index, an equipment fault risk index, a comprehensive health index and a comprehensive environment safety index to obtain a risk assessment value, and comparing the risk assessment value with a preset threshold to judge whether the construction area is in a risk state; calculating the coverage proportion of the monitoring area, and comparing the coverage proportion with a coverage proportion threshold of the monitoring area to judge whether the coverage proportion of the current monitoring area meets the requirement or not; calculating an unmonitored area proportion, further obtaining a risk assessment index, finally obtaining a construction efficiency index, and comparing the construction efficiency index with a construction efficiency index threshold value to judge the construction efficiency; according to the method, the risk of the construction area can be comprehensively evaluated, risk early warning is realized, monitoring coverage is optimized, and construction safety and efficiency are guaranteed.

The invention discloses a self-adaptive multi-hop retrieval knowledge graph construction method for large language model questions and answers. The method comprises the following steps: extracting triples of an input question and a corpus; self-adaptive multi-hop retrieval matching is carried out, and a specific triple related to the question in the corpus is retrieved and recognized; constructing a knowledge graph by using the question in the adaptive multi-hop retrieval matching process and a corpus triple; the answer predictor model comprises node embedding, message passing and selective filtering, and the node embedding is used for encoding questions and a knowledge graph; carrying out message transmission based on the coded problem and the knowledge graph based on a graph convolutional network; selective filtering is used for filtering redundant information of the knowledge graph; according to the method, the problem that the large language model generates illusion can be relieved, the complex reasoning process can be understood, and therefore the question answering and logical reasoning performance of the large language model is improved.

The invention discloses an active learning-based electric power knowledge graph construction method and system, and relates to the technical field of electric power market transaction data analysis, and the method comprises the steps: collecting data, cleaning the collected data, generating word prediction task data of an electric power transaction scene, and training an electric power field word embedding model; generating an entity relationship training sample, inputting a word embedding model, performing entity relationship label prediction through an entity relationship joint extraction model, extracting a high-quality sample based on active learning to perform part-of-speech tagging, and training the model based on a tagged sample; and applying the trained entity relationship joint extraction model to power transaction data to construct a knowledge graph, performing manual correction and entity unification, and storing the knowledge graph into a Neo4j database. According to the method, active learning and deep learning are combined, so that the sample labeling cost is effectively reduced, and meanwhile, the model performance is ensured.

The invention discloses an underwater riprap foundation bed tamping method based on a sand compaction pile ship. The method comprises a sand compaction pile ship transformation process and a tamping and leveling process. When the flow of transforming the sand compaction pile ship is carried out, sand outlet guide doors at the lower ends of the three pile sinking sleeves on the sand compaction pile ship are cut off firstly; the lower ends of the three pile sinking sleeves are each connected with a bottom flange; the three tamping plate devices are connected to the bottom flanges of the three pile sinking sleeves in a one-to-one correspondence mode, and each tamping plate device comprises a tamping sinking pipe, a top flange, a tamping sinking bottom plate, an enclosure plate, a middle plate, a plurality of upper-layer stiffening plates and a plurality of lower-layer stiffening plates; when the tamping and leveling process is carried out, underwater riprap operation on the lowest layer of the foundation bed is carried out firstly, and then the transformed sand compaction pile ship is moved to a vibrating tamping position on the underwater riprap surface of the lowest layer of the foundation bed for tamping and leveling; and then the ship is moved to the next ship position for tamping and leveling of the next vibrating tamping position. The construction efficiency in the drop hammer tamping process of the underwater riprap foundation bed can be improved.

The invention belongs to the technical field of polymer heat conduction, and particularly relates to a preparation method of a high-heat-conductivity polymer with modified boron nitride as filler, which comprises the following steps: (1) dissolving boron nitride nanosheets into tetrahydrofuran, ultrasonically dispersing uniformly, adding a modifier for reaction, then removing tetrahydrofuran by using a rotary evaporator, transferring into deionized water, and drying to obtain a boron nitride nano-sheet; drying to obtain a modified boron nitride nanosheet; (2) dispersing carbon nanotubes in deionized water, stirring and carrying out ultrasonic treatment, adding the modified boron nitride nanosheets, and then carrying out freeze orientation treatment and freeze drying treatment to obtain a porous foamed composite heat-conducting filler; and (3) carrying out melt blending on the composite heat-conducting filler and polyethylene glycol terephthalate, and carrying out hot press molding to finally prepare the modified high-heat-conductivity polymer. According to the invention, the composite heat-conducting filler improves the interfacial compatibility and dispersity with a polymer matrix, and reduces the interfacial thermal resistance of the composite material, so that the modified polymer has good application in the aspect of heat dissipation of electronic equipment.

The invention discloses a construction method of a synchronous pouring type precast concrete split cover beam, a component mold of the synchronous pouring type precast concrete split cover beam and a component manufacturing method.The combined component mold is composed of a bottom mold, a side mold, a first side mold and a second side mold, and a baffle is arranged in a pouring area of the component mold; a plurality of components can be synchronously manufactured at a time through the mold, then the multiple components are spliced on site and cast in situ to form the component-piece-type prefabricated concrete cover beam, manufacturing of the large-cantilever prefabricated cover beam under the special working conditions that the construction site is narrow, the distance between supporting stand columns is small, cantilevers on the two sides are large, and the stress requirement is high can be achieved, and due to the fact that the prefabricated concrete cover beam is heavy, manufacturing cost is low. The prefabricated concrete cover beam is simple in structure and high in transportation difficulty, the transportation and hoisting difficulty is reduced by manufacturing the multiple components in a split mode, the manufacturing difficulty of the prefabricated concrete cover beam is reduced, meanwhile, manufacturing of the prefabricated concrete cover beam with the larger size and weight can be achieved, and the requirements for the prefabricated concrete cover beam in different projects are effectively met.

The invention discloses early-strength nano C-S-H crystal nucleus concrete in a low-temperature curing environment and a preparation method thereof. The concrete is composed of the following substances in parts by weight: 260-300 parts of PO52.5 ordinary Portland cement; 135 to 155 parts of slag; 60 to 70 parts of fly ash; the water-binder ratio is 0.27 to 0.31; the sand ratio is 0.40 to 0.44; the water reducing agent accounts for 1% of the mass of the gel body; the nano C-S-H crystal nucleus accounts for 6%-10% of the mass of the gel body; 1080 to 1210 parts of coarse aggregate; and 770 to 870 parts of fine aggregate. The method comprises the following steps: (1) respectively weighing the cement, the slag and the fly ash according to the parts by weight, putting into a stirrer, and stirring for 1 minute; 2) continuously adding sand and stone into the concrete mixer, and continuously stirring for about 2 minutes; and 3) adding the water, the water reducing agent and the nano C-S-H crystal nucleus into the mixture, and uniformly stirring for 2 minutes. The method effectively solves the problem of slow development of concrete strength in a low-temperature environment, also solves the problems of long construction period and high maintenance cost of a concrete structure in winter, and has obvious engineering significance and relatively strong economic benefits.

The invention discloses an IPN multi-element heat-conducting structural adhesive resistant to high and low temperature damp heat and a preparation method thereof, and belongs to the field of IPN multi-element structural adhesives. The structural adhesive is prepared by matching a component A and a component B according to a volume ratio of 0.9: 1.1-1, the component A is prepared from the following raw materials in parts by weight: 10 to 20 parts of silane modified polyether resin A, 10 to 20 parts of silane modified polyether resin B, 2 to 5 parts of amino-containing silane coupling agent, 0.1 to 0.5 part of catalyst, 1 to 2 parts of epoxy curing agent A, 0.5 to 1 part of self-made epoxy curing agent B, 0.1 to 1 part of catalyst, 1 to 3 parts of first aid, 0.01 to 0.03 part of color paste and 50 to 70 parts of first heat-conducting filler; the component B is prepared from the following raw materials: 10 to 20 parts of epoxy resin A, 5 to 10 parts of self-made epoxy resin B, 5 to 10 parts of reactive diluent, 50 to 70 parts of second heat-conducting filler, 0.1 to 1 part of second aid, 0.01 to 0.03 part of color paste and 1 to 1.5 parts of water. The adhesive is environment-friendly in component, has excellent heat-conducting property and excellent operation performance, is smooth in construction, and can be used for firmly bonding a base material.

The invention belongs to the technical field of genetic engineering, and discloses a Yarrowia lipolytica engineering strain capable of efficiently producing eicosapentaenoic acid through a cofactor strategy, Yarrowia lipolytica Po1f is used as an original strain, and genes of delta 9 elongase, delta 8 desaturase, delta 5 desaturase and delta 17 desaturase are over-expressed, so that the eicosapentaenoic acid can be efficiently produced. And simultaneously overexpressing glucose-6-phosphate dehydrogenase (G6PDH) and malic enzyme (ME) to obtain the gene. The construction method is suitable for constructing a genetic engineering strain for producing eicosapentaenoic acid, the aim of simply, conveniently, effectively and accurately constructing the strain is achieved, the constructed engineering strain is further applied to production of eicosapentaenoic acid, and an effective way is provided for commercially producing eicosapentaenoic acid by applying yarrowia lipolytica.

The invention provides a structure capable of controlling a large-volume water gate crack and a construction method thereof, and belongs to the technical field of water gates. The structure comprises a gate bottom plate and a gate pier which are formed by pouring concrete, and the gate pier is arranged above the gate bottom plate; hole cavities are at least formed in the gate piers and reserved in the concrete pouring process. The hole cavity is used as a self-constrained stress hole; and the tough material is used for absorbing stress, is filled in the pore cavity and is connected with the inner wall of the pore cavity. The method comprises the steps of S1, construction preparation; s2, foundation treatment; s3, gate bottom plate construction; s4, gate pier construction: S41, construction lofting; s42, gate pier reinforcing steel bars are bound and installed; s43, a gate pier formwork is erected above the gate bottom plate; s44, a hole forming device is installed at the designed position; s45, concrete pouring, vibrating and curing are conducted; and S46, after initial setting of the concrete, the hole forming device is pulled out of the pipe, and a formed hole cavity is filled with a tough material. The sluice pier crack can be effectively controlled, and the use durability and safety of the sluice are improved.

The invention belongs to the technical field of battery materials, and discloses modified asphalt-based hard carbon as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing asphalt and a nitrogen-containing compound, carrying out a first heating reaction in a protective gas atmosphere, cooling, and carrying out a second heating reaction to obtain doped asphalt, carrying out oxidation treatment on the doped asphalt to obtain an oxidized material; and carrying out pre-carbonization and carbonization treatment on the oxidized material in a protective gas atmosphere to obtain the modified asphalt-based hard carbon. The doping of the gradient heating nitrogen element is beneficial to the construction of a three-dimensional conductive network and a flexible skeleton, and the conductivity and the structural stability of the modified asphalt-based hard carbon are enhanced, so that the electrochemical performance of the modified asphalt-based hard carbon is improved.

The invention discloses a methyl paraoxon pesticide detection test strip based on oxygen vacancy-cerium dioxide and a preparation method of the methyl paraoxon pesticide detection test strip, and belongs to the technical field of biosensors. The test strip is characterized in that a large amount of oxygen vacancy-cerium dioxide is loaded. The oxygen vacancy-cerium dioxide nano enzyme can show simulated phosphatase activity under specific conditions, and the enzyme activity can cut off P-O and P-S bonds of organophosphorus pesticides and promote methyl paraoxon to be hydrolyzed into a yellow product p-nitrophenol. The detection limit of a nano-enzyme system is discussed, so that the portable visual quantitative detection of the paraoxon methyl pesticide is realized. The test strip established on the basis of the principle can quickly detect paraoxon methyl, has the advantages of simplicity and convenience in operation, high sensitivity, low cost and the like, and provides a new method for instant test of paraoxon methyl pesticide.

The invention discloses a double-row steel sheet pile and soil core combined cofferdam structure and a construction method. The double-row steel sheet pile and soil core combined cofferdam structure comprises double-row pile connecting units, steel sheet piles, brackets, steel enclosing purlins, dredger fill and drainage plates. Each double-row pile connecting unit is formed by welding an upper connecting plate between two connecting steel sheet piles; the double-row pile connecting units are inserted into a soil body, and a steel sheet pile is inserted between every two double-row pile connecting units; corbels are welded to the outer sides of the steel sheet piles, steel enclosing purlins are arranged on the corbels, and the steel enclosing purlins, the steel sheet piles and the corbels are connected in a welded mode; dredger fill is filled between the two rows of steel sheet piles and is compacted by a hammer-attached soil squeezer; a drainage plate is inserted into the dredger fill; earth excavation is conducted on the side, close to water, of the double-row pile cofferdam to form a foundation pit; when shallow excavation is conducted on the foundation pit, no sand filling pipe bag is arranged; when the foundation pit is deeply excavated, a slope section is reserved; sand filling pipe bags are arranged on the outer side of the slope section and stacked on the outer side of the slope section in a staggered mode. The hammer-attached soil squeezing device comprises an attached hammer, a pressing plate, water permeable holes, geotechnical cloth and a brush.

The invention provides a data down-sampling method, and relates to the field of databases, the method comprises the following steps: receiving a user-defined down-sampling strategy of multiple levels, the down-sampling strategy of each level indicating that after original data is stored in multiple time partitions and a defined time interval is passed, the down-sampling strategy of each level is stored in the multiple time partitions; carrying out downsampling on the data in the plurality of time partitions according to a defined sampling period; according to a first time interval after first original data is stored in a first time partition, a first downsampling strategy is determined from the multiple levels of downsampling strategies, and the longer the first time interval is, the longer the sampling period of the first downsampling strategy is; obtaining first data currently stored in the first time partition; and down-sampling the first data according to the first down-sampling strategy to obtain second data. And a user can set a downsampling strategy according to own needs, so that the applicability of downsampling is improved.

The invention discloses a composite reinforcement type suction barrel device based on microorganism induction and a use method thereof. The composite reinforcement type suction barrel device based on microorganism induction comprises a suction barrel model system, a microorganism cement reinforcement system and a test monitoring system. The suction cylinder model system comprises a suction cylinder, a grouting pipeline and hydraulic equipment, and the grouting pipeline is laid on the inner wall of the suction cylinder and used for injecting microorganism cement grout; the hydraulic equipment is connected to the suction barrel and used for controlling lifting and pressing-in of the suction barrel. The microbial cement reinforcement system comprises liquid storage equipment and negative pressure equipment, and the liquid storage equipment is connected to the grouting pipeline and used for storing and providing microbial cement grout for the grouting pipeline; the negative pressure equipment is connected to the suction barrel and used for applying negative pressure to the interior of the suction barrel in the grouting process, and permeation of microorganism cement grout is promoted. The test monitoring system is used for testing mechanical parameters of a soil body, monitoring the suction barrel and carrying out a loading test on the suction barrel.

The utility model relates to a floating type offshore wind power suction anchor foundation mooring lifting lug structure which comprises a suction anchor cylinder body, a main eye plate and a cylinder body thickening plate, the cylinder body thickening plate is fixed on the inner side wall of the suction anchor cylinder body, the main eye plate is fixed on the outer side surface of the suction anchor cylinder body, and the cylinder body thickening plate is fixed on the inner side wall of the suction anchor cylinder body. The main eye plate penetrates through the side wall of the suction anchor cylinder and the cylinder thickening plate and is fixedly connected with a first connecting plate, a second connecting plate is fixed to the other side of the first connecting plate, and the second connecting plate is fixed to the inner side wall of the other side of the suction anchor cylinder. According to the utility model, the suction anchor cylinder body can form a whole with a stable structure.

The invention provides a polyurethane material with ionic interaction and a preparation method thereof, and relates to the technical field of polyurethane materials. The preparation method comprises the following steps: mixing polyol, diisocyanate, an organic solvent and a catalyst, and carrying out prepolymerization reaction to obtain an isocyanate-terminated polyurethane prepolymer; the isocyanate-terminated polyurethane prepolymer and a chain extender are mixed for a chain extension reaction, and a chain extension product is obtained; mixing the chain extension product with an end-capping reagent, and carrying out an end-capping reaction to obtain a polyurethane material with ionic interaction; the end-capping agent has a hydroxyl group and a positive ion group. According to the invention, ionic groups are introduced into a molecular structure, and ionic bonds are formed among polyurethane molecular chains, so that the polyurethane material with ionic interaction is obtained. The polyurethane material provided by the invention not only shows excellent mechanical properties (high strength, high toughness and high stretchability), but also has excellent heat resistance, and is expected to be applied to extreme conditions or complex environments.

The invention discloses a typical adjustable resource optimization method and system for a power grid adjustment scene, and the method comprises the steps: carrying out the step extraction of operation data for the historical operation data of different adjustable resources; setting typical scene response characteristics by considering response characteristic differences of the adjustable resources in different power grid adjustment scenes, constructing an adjustable resource response potential evaluation index system oriented to the power grid adjustment scenes, and calculating various evaluation indexes; the matching degree difference between the multi-type adjustable resource response characteristics and the power grid adjustment demand is considered, an adjustable resource comprehensive evaluation model is constructed, and adjustable resource response potential comprehensive evaluation in a specific scene is achieved; in combination with an adjustable resource response feature combination and a comprehensive evaluation model, rapid grouping and optimization are carried out on adjustable resources by adopting a combination evaluation and affinity propagation algorithm, and classification and optimization of adjustable resource groups with different response potentials are realized; and in combination with classification and optimization results, analyzing user demand response potential, and optimizing energy management and demand response strategies.

The utility model relates to the field of pile foundations, in particular to an uplift precast pile structure which comprises a precast hollow pile and an anchoring device, the anchoring device is connected with the precast hollow pile, a plurality of unbonded prestressed steel strands are arranged in the precast hollow pile, and the anchoring device comprises a pile bottom anchoring part and a pile top anchoring part. The anti-pulling precast pile solves the problem that an anti-pulling precast pile in the prior art cannot be used as a long pile or an ultra-long pile, improves the anti-pulling bearing capacity of a single pile, improves the stress performance of the anti-pulling pile, and enables the anti-pulling pile to have better integrity and anti-pulling ductility.

The invention discloses a preparation method and application of a pulsed electric field induced high-thermal-conductivity epoxy-based composite material, and relates to the technical field of preparation of epoxy resin composite materials. The invention aims to solve the problem that the thermal conductivity of the epoxy resin-based composite material is not obviously improved under the condition of low filling amount at present. According to the method, the h-BN is induced to be oriented in an epoxy resin matrix by utilizing a pulsed electric field, then the epoxy resin is cured, and the oriented structure is reserved. Compared with blindness of construction of a direct doping heat conduction path, the h-BN is enabled to face a specific direction by utilizing an induction effect of a pulsed electric field, so that the probability of mutual lap joint of the h-BN is increased, and construction of the heat conduction path is promoted. The preparation method and application of the high-thermal-conductivity epoxy composite material induced by the pulsed electric field can be obtained.

The invention relates to the technical field of simulation regression systems, and provides a parallel simulation regression method and system based on cluster servers. The method comprises the following steps: classifying simulation tasks according to task types, and determining a dependency relationship among a plurality of simulation tasks; generating a parallel simulation task list through a cluster server management tool according to the dependency relationship among the plurality of simulation tasks; and delivering the parallel simulation task list to a cluster server, and running simulation tasks by the cluster server to generate a simulation result. The parallel simulation regression system is conveniently constructed by utilizing the scheduling function of the cluster server, the dependency relationship of various types of tasks can be processed, the degree of parallelism of the simulation regression system is increased to the maximum extent, and the method has universality and can be widely applied to different scenes.

The invention relates to the technical field of high polymer materials, and provides a radiation refrigeration coating and a preparation method thereof.The radiation refrigeration coating is prepared from, by weight, 5-20 parts of heat reflection filler, 5-20 parts of heat radiation filler, 5-20 parts of common filler, 0.1-0.5 part of a thickening agent, 10-25 parts of aerogel paste, 0.25-0.75 part of a water repellent agent, 0.2-0.5 part of a defoaming agent, 0.3-1.5 parts of a dispersing agent, 0.1-0.3 part of a pH value regulator and 0.3-1 part of a sterilizing, anti-corrosion and anti-mildew agent, 0.1-0.5 part of a wetting agent, 25-40 parts of an acrylic emulsion, 1-2 parts of an anti-freezing agent, 2-4 parts of a coalescing agent and 15-30 parts of water; the functional coating with both high reflection and radiation refrigeration, provided by the invention, is remarkable in reflective insulation / radiation refrigeration effect, non-toxic, odorless, pollution-free and convenient to construct, and is an ideal decorative material.

The invention relates to an enhanced urban terrestrial heat exploitation system and method based on nanofluid. The system comprises a heat collection pipeline, a heat exchange assembly and a nanofluid adjusting assembly. The nanofluid adjusting assembly is connected into the heat collecting pipeline. The nanofluid adjusting assembly comprises a storage pool, a control unit, a concentration detection sensor, a temperature sensor and a concentration adjusting unit, the concentration detection sensor, the temperature sensor and the concentration adjusting unit are connected with the control unit, the storage pool communicates with the heat collecting pipeline, the concentration detection sensor is used for detecting the concentration of nanofluid in the storage pool, and the temperature sensor is used for detecting the temperature of the nanofluid. And the concentration adjusting unit is used for adjusting the concentration of the nanofluid in the storage tank. Compared with the prior art, the method has the advantages that the fluid concentration in the whole circulation pipeline is adjusted in real time according to the appropriate heat transfer concentration of the hybrid nanofluid at all temperatures, then the heat exchange performance of the nanofluid is effectively guaranteed, and the heat exchange efficiency of the geothermal circulation system is improved.

The invention belongs to the technical field of compressed air energy storage, and discloses a salt cavern compressed air energy storage reservoir stability grade evaluation method and system, and the method comprises the steps: obtaining salt rock physical and mechanical parameters, stratum structure parameters and salt cavern internal structure parameters; selecting a stability evaluation index of the salt-cavern compressed air energy storage library; establishing a three-dimensional geomechanical model of the salt cavern energy storage library and performing simulation calculation; constructing an evaluation model; determining an index weight value of the stability of the salt-cavern compressed air energy storage library; calculating an evaluation grade; and adjusting and optimizing operation parameters of the salt cavern energy storage bank. According to the method, by providing a systematic quantitative analysis process and a unified evaluation index system, the accuracy and reliability of stability evaluation of the salt-cavern compressed air energy storage library are remarkably improved, and an important technical support is provided for development and application of a salt-cavern compressed air energy storage technology. Important technical support is provided for development and application of a salt cavern compressed air energy storage technology, and commercialization and large-scale development of the technology can be promoted.