19results about How to "Obvious technical advantages" patented technology

The invention provides a tunnel hard rock non-blasting excavation method. The tunnel hard rock non-blasting excavation method can realize efficient excavation of complete or relatively complete hard rock without adopting large excavation equipment such as a heading machine and the like , and is characterized by comprising the following steps of 1, drilling contour holes along a tunnel face contour line so as to determine a tunnel excavation range, and determining each drilling and grooving position according to the excavation range, then, forming and drilling a plurality of cavity expanding holes in the position close to the positions; 2, drilling a plurality of rows of guide holes between the contour holes and the cavity expanding holes; 3, drilling groove forming holes which are meshed and overlapped with each other at the determined drilling and grooving positions, and finally forming a groove cavity; 4, enabling the cavity expanding holes near the groove cavity to be subjected to impact crushing, and therefore expanding excavation is conducted on the groove cavity; 5, according to a certain excavation sequence, starting from the guide holes close to the expanded and excavated groove cavity, adopting a hydraulic breaking hammer for conducting impact breaking on the guide holes, so that excavation of the rock mass of a main body part is completed; and 6, conducting impact crushing on the contour holes.

The present application relates to the field of computer storage and optical communication technology, and discloses a memory and storage controller long-distance interconnection method and system based on optical communication. The method encapsulates high-speed, medium-speed and low-speed signals between the memory and the storage controller, converts them into optical signals, and then transmits them over optical fibers. The receiving end converts the optical signals back into electrical signals through an optical module, and restores the original signals. The system includes a sending end and a receiving end, both of which contain special circuit modules and optical modules to complete signal encapsulation, conversion, transmission and recovery. The present application can effectively solve the problem of low-speed signals that cannot be directly transmitted over optical fibers, is suitable for various types and protocols of memories, and supports long-distance memory interconnection in cross-cabinet distributed storage and large-scale computing environments. The system has a long transmission distance, strong anti-interference ability, can reduce hardware complexity and cost, and improve the reliability and expandability of the system.

This utility model discloses a photolithography principle demonstration device, comprising: an outer frame including a frame and multiple baffles; a lighting system including an ultraviolet lamp group and a lens group, the lens group being disposed below the ultraviolet lamp group; an imaging system including an optical lens and a photomask, the photomask being disposed between the optical lens and the lens group; a focusing system including a power module, a moving module, and a support platform, the support platform being connected to the moving module and located below the optical lens, the power module being connected to the moving module and capable of driving it to move up and down, thereby causing the support platform to move along the optical axis of the optical lens; a power supply module connected to the lighting system and the power module; and a control module connected to the lighting system, the power module, and the power supply module. This utility model is applicable to teaching demonstrations of photolithography processes.

This invention discloses a cell sample viability detection kit and method based on mass spectrometry flow cytometry. The cell sample viability detection kit based on mass spectrometry flow cytometry includes separately packaged solutions C, P, Pd, F, M, and D; solution C includes bovine serum albumin and phosphate buffer; solution P includes phosphate buffer; solution Pd includes palladium dichloride and double-distilled water. The effective component of palladium dichloride, palladium, has the following natural isotope abundances: isotope 102 The relative abundance of Pd was 1.02%. 104 Pd was 11.14%. 105 Pd is 22.33%. 106 Pd is 27.33%. 108 Pd was 26.46%. 110 Pd is 11.72%; Solution F includes paraformaldehyde and phosphate buffer; Solution M includes methanol; Solution D includes... 191 / 193 Ir, paraformaldehyde, and phosphate buffer. This invention's kit features high detection sensitivity, reduced detection interference, improved experimental efficiency, and reliable results.

The invention relates to the technical field of motors and control, in particular to a stator power supply method of a long stator linear motor, which effectively reduces partial voltage of winding leakage reactance by subdividing a segmented winding into a winding branch A and a winding branch B and combining'pre-switching-on 'and'delayed switching-off' of uncovered segments of a vehicle. In addition, through star-shaped connection of center end points of winding branches A and B and adoption of a double-path power supply for power supply, at least two adjacent branches are ensured to be supplied with power at any time. The output transformer is arranged for the single frequency converter, the two secondary sides of the transformer share the same primary side excitation transformer, and dynamic load balancing is achieved. For doubly-fed linear motor control, a power supply adopts a variable control mode. According to the method, under the technical condition that the step changing control frequency and the power supply interval are kept basically unchanged, under the set winding voltage withstanding level, stator power supply section division is more effectively regulated and controlled, higher rotor counter electromotive force can be overcome for operation, and then the maximum operation speed of a vehicle is increased.

The application discloses a kind of wing-body fusion layout unmanned aerial vehicle's aerodynamic shape, it is related to low-altitude economic unmanned aerial vehicle high lift-drag ratio flight technical field, including wing-body part, the rear end of the upper surface of wing-body part is equipped with V-tail, engine is installed between the opposite surface of V-tail, the wing-body part with the V-tail is equipped with control surface part on;The lower surface of wing-body part is equipped with landing gear;The wing-body part includes inner wing and outer wing, the inner wing with the outer wing is symmetrically arranged, the edge of outer wing is equipped with wing tip;The leading edge sweep angle of wing-body part is 20 °, the trailing edge sweep angle of wing-body part is 17 °.The application discloses a kind of wing-body fusion layout unmanned aerial vehicle's aerodynamic shape, has better aerodynamic performance, stronger carrying capacity and lower noise;Appearance is simple, and cruise efficiency is high, suitable for engineering practical application.

The application discloses a method for reinforcing the well wall of a hydrate exploitation well in a sea area by using mineralization deposition, and comprises the following steps: arranging a spray hole on the pipeline of the exploitation well and extending the spray hole to the outside of the well wall; arranging a plurality of pipelines along the well wall inside the well wall for conveying branched polyethylene imine (BPEI) solution and modified nano calcium carbonate dispersion; before hydrate exploitation, conveying the reagents from an exploitation platform to a specified reinforcement depth, and spraying the two reagents from the spray hole by using a high-pressure pump at a certain time interval and pressure; the two reagents are fully reacted in the soil layer around the well wall to generate mineralization deposits and improve the strength of the soil layer; the method can be repeated according to requirements to form multiple mineralization deposits to achieve the required reinforcement strength; the method is convenient to operate, the reinforcement process is clear, and the effect is remarkable, and the method fills the blank in the field of real-time reinforcement of the well wall of a hydrate exploitation well, and helps long-term, safe and efficient exploitation of hydrate energy, and has remarkable technical advantages.

This invention belongs to the interdisciplinary field of space geodesy, satellite navigation and positioning technology and atmospheric science, and discloses a real-time tropospheric delay modeling method to enhance the global forecast system. The specific steps are as follows: First, the zenith hydrostatic delay and zenith wet delay of the surface GFS forecast are obtained, and the regional grid difference time series is constructed with the fusion result of ERA5 data and GNSS tropospheric delay products as the reference benchmark; Second, the above differences are fitted to form the GFS enhancement core model; At the same time, a tropospheric delay correction model from grid height to target station height is constructed based on ERA5 layered atmospheric data, and the model coefficients are modeled in time series, so as to finally realize the refined tropospheric delay output at different heights. The advantages of this invention are: (1) high accuracy of real-time tropospheric model; (2) robust performance of real-time application without relying on GNSS network; (3) easy to expand and deploy; (4) strong real-time performance, which can be seamlessly integrated into precision positioning application.

The utility model discloses a polystyrene production is with preheating device, including collection box, be provided with the rubbing assembly on the collection box, the rubbing assembly includes filter plate and rubbing box, the filter plate sliding connection is in the collection box, the rubbing box sets up in the collection box, be equipped with the drive shaft that rotates and connects in the rubbing box, the drive shaft is provided with two, install and be equipped with rubbing knife on the drive shaft, the one end of drive shaft is equipped with the meshing gear, be provided with the split component between the collection box and filter plate, the split component includes fixed link and fixed cover, the fixed link fixed mounting is in the collection box, the fixed cover can detachable setting in the one end of fixed link, the one end of fixed cover is close to with filter plate, to solve the technical problem that the current polystyrene production is with preheating device in the use process in the background art, cannot conveniently complete the rubbing collection of polystyrene.

This application relates to the field of underwater robot technology and discloses a multimodal fusion intelligent detection method for bridge defects using underwater robots. The method includes: acquiring a set of underwater environmental parameters; dynamically adjusting imaging parameters by optimizing the light propagation path to overcome problems such as light attenuation and scattering in the underwater environment; utilizing multi-sensor data fusion technology, combining sonar and optical imaging data to generate a high-quality sequence of bridge surface images; extracting, classifying, and weighting defects in the images to generate an intermediate image set containing defect features; and performing multi-dimensional verification and local correction to ensure the accuracy of the defect features; finally, by evaluating the quality of the intermediate image set, standardized image data is generated to provide reliable input for defect extraction. This application can provide efficient and accurate technical support for bridge maintenance and safety assessment.

The utility model discloses a multifunctional showing stand for libraries, which comprises a support, a shaft rod and a showing board, the surface of the showing board is provided with a supporting board groove and a built-in supporting board, and the built-in supporting board can realize two states of folding built-in and unfolding supporting; when the display board is in the folded built-in state, the built-in supporting board is stored in the plane of the display board, so that publicity posters, notices and the like can be conveniently pasted; when the display board is in an unfolded supporting state, the built-in supporting board and the display board are locked at a fixed included angle, and books, newspapers, magazines and the like can be borne for a reader to borrow. The multifunctional showing stand can be used as a showing stand for propaganda posters and can also be used as a showing stand for reading materials, and the utilization rate of the library showing stand is effectively improved.

This invention discloses a temperature sensor for a steam oven and its processing system, comprising an aluminum sensing element. A silicone sealant is fixedly connected to the left side of the aluminum sensing element, and an aluminum screw is threadedly connected to the right side of the aluminum sensing element. The aluminum screw has a T-shaped vertical cross-section and a through hole. A ceramic cap is housed inside the aluminum sensing element, and the ceramic cap is elastically connected to the adjacent side of the aluminum screw via a connecting spring. The left side of the ceramic cap extends into the silicone sealant, and a ceramic baffle is located inside the ceramic cap. Two resistance strips are fixedly connected to the right side of the ceramic baffle, and the right sides of the two resistance strips extend through the through hole to the outside and are fixedly connected to a connector. This temperature sensor senses temperature faster and has better heat dissipation, enabling faster reuse. Furthermore, the processing system allows for automatic and rapid processing of the aluminum screw on the sensor, thus meeting the quantity requirements during overall assembly.

The invention discloses a method for reducing the precipitation temperature of a nano copper-rich phase and application of the method, and relates to the technical field of metal material precipitation strengthening. Rare earth metal elements are added into the copper-containing steel, and the precipitation temperature of a nano copper-rich phase is reduced to be not higher than 480 DEG C by regulating and controlling the copper precipitation behavior through the rare earth metal elements. According to the method, based on a 9R-Cu phase low-temperature precipitation mechanism of rare earth element micro regulation and control, the effective precipitation temperature of the 9R-Cu phase is reduced to 480 DEG C or below through the heterogeneous nucleation promotion effect of Ce atoms in the Cu precipitation process, so that it is guaranteed that a base material obtains the excellent strengthening effect, meanwhile, formation of a brittle phase on the interface of the composite material is avoided, and the service life of the composite material is prolonged. And coordination and unification of base material strengthening and interface stability are realized.

The application belongs to the field of alkyd resin, and particularly relates to a high-adhesion alkyd resin and a preparation method thereof. The high-adhesion alkyd resin is prepared from soybean oil acid, a nitrogen-containing heterocyclic compound, phthalic anhydride, pentaerythritol and hydroxyl-terminated polydimethylsiloxane. By introducing the nitrogen-containing heterocyclic compound (such as quinoline and triazole) and the hydroxyl-terminated polydimethylsiloxane (PDMS), the molecular structure of the alkyd resin is significantly optimized, so that the alkyd resin is superior to the traditional alkyd resin in terms of heat resistance, corrosion resistance, mechanical strength, adhesion and construction performance. The alkyd resin is suitable for the fields of high-temperature anticorrosive paint, ship paint and industrial protective paint, and exhibits significant technical advantages and broad market prospects.

This utility model discloses an air conditioner bracket, including a bracket body and a lateral support element. The bracket body has slots extending through it from left to right and an installation space communicating with the slots. The lateral support element has an adjusting connecting rod, which is inserted into the slot and can move left and right relative to the slot. The adjusting connecting rod is located within the installation space. Locking grooves are arranged along the left-right direction on the upper surface of the adjusting connecting rod. A locking tooth plate is movable up and down within the installation space. An extension post is connected to the locking tooth plate, extending to the outside of the installation space. When the extension post is driven downward by an external force, it can engage with the locking grooves to constrain the left-right movement of the adjusting connecting rod. This solution utilizes the insertion and engagement of the slot and the adjusting connecting rod, as well as the engagement of the locking grooves and the locking tooth plate, to achieve adjustment and locking. This reduces the use of complex components such as screws and nuts, simplifies the processing and assembly process, and effectively reduces manufacturing costs.

This invention relates to the field of geomathematical geology, and particularly to a mass balance method based on multi-element proportional deviation synergistic analysis. The method includes: S1 data extraction and preprocessing; S2 PD matrix initialization; S3 PD matrix calculation and filling; S4 determination of inactive elements based on proportional deviation analysis; and S5 mass balance calculation, which calculates the migration degree of each element relative to the initial content of the original rock, thereby comprehensively evaluating the activity intensity and migration behavior characteristics of different elements during rock alteration, thus achieving a quantitative assessment of element migration behavior during rock alteration. The mass balance method based on multi-element proportional deviation synergistic analysis provided by this invention does not rely on traditional graphical discrimination methods, can accurately identify inactive elements in the data set, greatly improves computational efficiency and accuracy, and possesses high efficiency and universality. It can effectively perform computational analysis on element depletion states in complex geological environments.

This invention belongs to the field of artificial intelligence technology and relates to a multi-agent recursive task decomposition and adaptive routing method and system. The main steps of this method include task reception and semantic parsing, recursive task decomposition and task dependency graph construction, agent dynamic matching and adaptive routing, knowledge gap identification and "illusion" suppression mechanism, fault-tolerant scheduling and task rerouting, subtask result aggregation and closed-loop evaluation feedback. This invention comprehensively improves the automation, accuracy, and reliability of complex task processing by integrating recursive automatic task decomposition, agent dynamic routing, adaptive knowledge completion, a robust fault-tolerant mechanism, and a result feedback optimization mechanism. It is particularly suitable for complex knowledge processing scenarios such as in-depth interpretation of policy documents, multi-dimensional scientific research information evaluation, and review of large-scale project materials, and has significant technical advantages and broad application prospects.

The application discloses an emotion-perceived music recommendation method and system based on electroencephalogram signals and a large language model, and belongs to the technical field of electroencephalogram signal processing and intelligent recommendation. User electroencephalogram signals are collected through a portable device, and after filtering and denoising, multi-dimensional features are extracted to identify the current emotional state; a trinity structured prompt of 'emotion-user-scene' is constructed in combination with user personal information, historical preferences and real-time environmental data; a target parameter package containing music style, emotional label, BPM range and instrument preference is generated by inputting a large language model for reasoning; candidate music is retrieved from a pre-labeled music knowledge base accordingly, and no more than 10 high-quality candidates are rearranged and screened in combination with a user portrait; finally, the top 3 music with scores output by a weighted scoring model are used as the recommendation result. The application combines physiological signals and multi-dimensional context, improves the accuracy of emotion recognition and the level of personalized recommendation, and is suitable for intelligent wearable devices and psychological health assistance.

The invention discloses a parking air conditioner battery positive electrode lead plaster with long low-voltage charging cycle life and a preparation method, the positive electrode lead plaster comprises the following components in parts by weight: 70-92 parts of lead powder, 0.06-0.15 part of antimony trioxide, 0.08-0.2 part of stannous mono-sulphate, 0.06-0.12 part of ultra-strong short fiber, 0.1-0.20 part of graphite, 0.02-0.12 part of single-wall carbon nano-tube, 6-10 parts of pure water and 5.8-9.8 parts of dilute sulphuric acid, the lead powder contains 72-76 wt% of PbO, the size of the ultra-strong short fiber is 2-5mm, the size of the pure water is 2-5mm, and the size of the pure water is 2-5mm. The density of the dilute sulfuric acid is 1.25-1.5 g / cm < 3 The preparation method comprises the steps of composite additive preparation, lead powder premixing, acid mixing and paste mixing, the acid spraying time is controlled to be 18-22 min, the maximum paste mixing temperature is 70-80 DEG C, and the paste discharging temperature is lower than 50 DEG C. A high-efficiency conductive network is constructed through synergistic modification of core components, sulfation and electrolyte layering are inhibited, the cycle life of the battery under the parking working condition exceeds 300 times and is prolonged by 50% or above compared with that of a traditional product, the formula process is adaptive to an existing production line, the yield is high, and the battery is suitable for parking air conditioners and other low-voltage charging scenes and has important practical value and popularization significance.