13results about How to "Solve practical problems" patented technology

The invention relates to the technical field of mountain torrent monitoring, and provides a mountain flood channel runoff monitoring method and system, and the method comprises the steps: constructing a three-dimensional model of mountain torrent channel opening terrain, and obtaining monitoring section form data; calculating the channel gradient through the lowest point elevation of the upper and lower sections and the channel on-way length; synchronously shooting a plurality of groups of three-waveband mountain torrent photos, calculating a normalized water body index of the mountain torrent, and extracting a mountain torrent water surface line and a mountain torrent water surface width of a monitoring section; dividing the mountain torrent water surface line of the monitoring section into multiple sections based on the mountain torrent water surface width data, obtaining the height and the bottom edge length of each section based on the elevation of the water surface line and the elevation of the lowest point of the monitoring section, and calculating the mountain torrent water flow cross sectional area, the mountain torrent water flow wetted perimeter and the mountain torrent hydraulic radius; and calculating the runoff of the mountain torrents by using the channel gradient, the hydraulic radius of the mountain torrents and the cross-sectional area of the flow of the mountain torrents and adopting a Manning formula. According to the invention, non-contact type mountain torrent monitoring can be realized.

The utility model discloses a systematic ecological restoration system for a coastal mud flat wetland, which relates to the technical field of ecological environment restoration and comprises coastal mud flat wetland restoration areas including a salt marsh vegetation restoration area, a mangrove forest restoration area, an oyster reef restoration area and a bird habitat restoration area. The outward side of the coastal mud flat wetland restoration area is provided with a shore side, and the other side of the coastal mud flat wetland restoration area is arranged at the offshore side end. After the specific damage condition of the main composition structure of the damaged and degraded coastal mud flat wetland restoration area is analyzed, system restoration and comprehensive restoration are considered, a multi-measure fusion restoration system is adopted, multi-target coupling and multi-function improvement are achieved, and compared with an existing single-target and single-measure restoration system and scheme, the method has the advantages that the method is simple and convenient to operate, and the cost is low. And the cutting and further damage of the coastal mud flat wetland ecosystem caused by imperfect remediation measures are avoided.

This invention discloses an adjustable end-sealing device for a multi-diameter pipe hydraulic testing machine. The device includes a pair of opposing end plates, at least one set of wedge-shaped sealing units comprising wedge-shaped sealing blocks and caps, and a synchronous drive mechanism consisting of at least three adjusting screws and locking nuts. Tightening the locking nuts causes the two end plates to move closer together, thereby synchronously pushing all the wedge-shaped sealing blocks radially inward. The smooth inclined surfaces of the wedge-shaped sealing blocks directly compress the outer walls of pipe ends of different diameters, achieving high-pressure sealing without independent sealing rings through the deformation of the pipe itself. This invention provides a single device that can be adapted to seal various pipe diameters, offering advantages such as high versatility, reliable sealing, simple operation, robust structure, and long service life.

The utility model relates to the field of machining, and discloses a workpiece cleaning device for a gantry machining center, which comprises a collecting box, a portal frame is arranged above the collecting box, a moving mechanism is arranged on the portal frame, a machining mechanism is arranged below the moving mechanism, a support frame is fixedly connected above the inside of the collecting box, and a workpiece is arranged on the support frame. The machining device has the advantages that water in the water tank is pumped into the water spraying pipe through the connecting pipe by starting the circulating pump, the water is sprayed out through the water spraying holes in the lower portion of the water spraying pipe, chippings on the surface of a workpiece during machining can be cleaned, and the machining efficiency is improved. Chippings on the surface of a workpiece can flow into a collecting box through a sliding groove in a placing plate through the fluidity of water, a threaded rod is driven to rotate by rotating a handle, a scraping plate can move in the collecting box, and therefore workers can conveniently collect the chippings at the bottom of the collecting box in a unified mode; the problem that an existing device is not practical enough is solved.

The invention discloses a reliable and fair attribute encryption outsourcing decryption method based on a smart contract. The method comprises the steps that a master key and public parameters are output through a trusted authority; then the trusted authority calculates and outputs a private key; the sender obtains the ciphertext and transmits the ciphertext to a storage cloud server; the sender obtains the conversion key and the corresponding retrieval key; the sender obtains the set W, the storage cloud server sends the ciphertext to the smart contract in a segmented manner, and the sender sends the conversion key and the set W to the smart contract in a segmented manner; calculating output element elements by nodes in the Ethereum network; a node in the Ethereum network sends out a transaction, element elements are uploaded to the smart contract, and the smart contract calculates and outputs a converted ciphertext; the sender obtains the packaged secret key through the public parameter, the conversion ciphertext and the retrieval secret key; according to the method, redundant information is not introduced, and extra burden brought to the decryption cloud server and the validity of the converted ciphertext checked by the user is avoided.

The invention relates to the technical field of ethylene oxide production, in particular to an EOEG product elastic switching device which comprises a 1 # ethylene oxide device, a 2 # ethylene oxide device, a 3 # ethylene oxide device, an ethylene glycol device I and an ethylene glycol device II, the first ethylene oxide device and the second ethylene oxide device are connected with the first ethylene glycol device and the second ethylene glycol device respectively, and an intercommunication line is connected between the first ethylene glycol device and the second ethylene glycol device. The structure of the ethylene oxide product is effectively adjusted, and energy waste is avoided, so that the effects of reducing cost and improving efficiency are achieved, the difficulty that the product structure cannot be changed due to external environment factors is greatly solved, and the change of the market condition of the EOEG market is better coped with.

The invention provides a surface cleaning robot system and a base station, the base station is provided with a power supply, the power supply is electrically connected with a first body through a power line, and a second body is provided with a first accommodating space and a flip assembly; the first containing space is used for containing the first body and provided with a first side face and a second side face, the normal of the first side face and the normal of the second side face are arranged to form an included angle, the flip cover assembly can be switched between an opening position and a closing position, and in the opening position, the first side face and the second side face are opened. Therefore, the first body can be stored and taken conveniently, and power can be supplied to the first body through the power line in each state.

The application discloses an industrial sensor data anomaly detection and repair method based on an attention mechanism, belongs to the technical field of industrial data processing, and carries out preprocessing on original data to obtain standardized data segments, a training set and a test set; end-to-end collaborative training is carried out on the training set to obtain a dynamic space-time attention detection model and a multi-scale self-attention repair model; the standardized data segments are input into the dynamic space-time attention detection model for anomaly detection to obtain abnormal related information; the standardized data segments and the abnormal related information are input into the multi-scale self-attention repair model for data repair to obtain repaired data; secondary verification and parameter fine-tuning operations are performed on the repaired data to obtain compliant repair data; and the POT algorithm is used to dynamically adjust an abnormality judgment threshold value, and normal industrial sensor data or compliant repair data is output. By using the above method, accurate detection and compliant repair of industrial sensor data anomalies are realized.

This invention discloses the use of oligomycin A in the preparation of a drug for competitively inhibiting EphB3 to reverse lorlatinib resistance, belonging to the field of biomedical technology. This invention experimentally discovered that EphB3 is a key factor mediating lorlatinib resistance in lung cancer, and that existing oligomycin A can effectively reverse EphB3-mediated resistance by competitively binding to EphB3. Based on this, this invention protects the use of oligomycin A in the preparation of a drug for reversing lorlatinib resistance in tumors (especially ALK-positive non-small cell lung cancer). Simultaneously, this invention also protects a therapeutically effective pharmaceutical composition comprising oligomycin A and lorlatinib, and a non-therapeutic method for reversing cellular resistance to lorlatinib in vitro. This invention provides a novel and effective solution for overcoming lorlatinib resistance in clinical practice.

The application discloses a collagen domain, a collagen protein, a recombinant collagen protein expression bacterium and application, and belongs to the field of genetic engineering. The application carries out stability prediction and sequence design on human collagen protein, obtains a collagen protein domain with high homology with natural human collagen protein, and directly expresses the recombinant human collagen protein with a triple helix structure in Escherichia coli. The high-thermal-stability collagen protein fragments designed in the application can correctly fold to form a triple helix structure, while the low-thermal-stability fragments cannot correctly fold. The high-thermal-stability recombinant human type I collagen designed in the application can self-assemble to form periodic light and dark stripes similar to natural type I collagen. The collagen domain and the collagen protein can be used in the biomedical and tissue engineering fields of the structure-function bionic recombinant collagen protein, and can be used in tissue culture, tooth tissue repair and the like.

The utility model discloses a universal hoisting tool for heavy tires. The universal hoisting tool comprises a lower rigid frame, an upper rigid frame and a flexible connecting assembly, the lower rigid frame is sleeved on the lower part of a vertically placed tire and is used for lifting the tire; the upper rigid frame sleeves the upper part of the tire to prevent the tire from swinging, and a hoisting part is arranged on the upper rigid frame; the flexible connecting assembly is used for connecting the lower rigid frame and the upper rigid frame, and the flexible connecting assembly is matched with tires of different specifications by changing the length of the flexible connecting assembly. According to the utility model, the problem that the heavy tires cannot be hoisted without a tire holding machine or a forklift is solved; the lower rigid frame, the upper rigid frame and the flexible connecting assembly completely limit the freedom degree of the tire, and the risk that the tire slides off during hoisting is guaranteed; and the whole structure adopts the hollow steel pipe, so that the light weight of the tool is ensured, and the cost is reduced.

The utility model discloses a kind of calibration device for body temperature monitoring bracelet, it is related to product calibration technical field, and its technical solution main point is: the inside of the imitation leather layer is equipped with the first probe of detecting the temperature inside imitation leather layer, the inside of the heating matrix is equipped with the second probe of detecting the temperature inside heating matrix, the first probe and the second probe are connected with the temperature control box of outside, effect is through the curvature radius matching human wrist arc of elliptic cylinder heating matrix, eliminate the contact thermal resistance deviation caused by traditional calibration equipment in midair, the double repetition of the thermal conductivity and the flexible deformation characteristics of imitation leather layer, ensure that the degree of fit of equipment sensor and real wear are consistent.

The invention discloses an aluminum alloy additive manufacturing strengthening and toughening method combining ultrasonic peening and heat treatment, and belongs to the technical field of metal additive manufacturing aftertreatment. The method sequentially comprises the following steps that firstly, a CMT technology is adopted, 7000 series aluminum alloy serves as a base plate, and aluminum-lithium alloy welding wires serve as filling materials for additive manufacturing; secondly, the surface of the manufactured part is subjected to ultrasonic impact treatment; and then, solution treatment and aging treatment are carried out. According to the method, through organic combination and sequential cooperation of the three processes, the technical problems that due to rapid cooling, residual stress is large, dispersed phase distribution is uneven, and obdurability and toughness are difficult to consider are effectively solved, the comprehensive performance of the material can be remarkably improved, the tensile strength is improved by 282.7% or above, and the service life of the material is prolonged. The elongation after fracture is improved by 543.5% or above, and the aluminum alloy is particularly suitable for preparing high-performance aluminum alloy components in the fields of aerospace and the like.