11results about How to "Good for long term" patented technology

The invention relates to the technical field of laser calibration, in particular to a laser optical axis calibration device and method, and the device comprises an optical axis offset detection module, a calibration parameter calculation module, a dynamic adjustment implementation module and a calibration effect evaluation module. According to the invention, the response speed and precision are enhanced by monitoring the output of the laser emitter in real time, evaluating the instant deviation of the optical axis and dynamically calibrating the optical axis, the deviation trend of the optical axis is predicted by using a data analysis technology, the future deviation path is effectively controlled, and non-critical calibration is reduced, so that the long-term performance and stability of equipment are improved; dynamic adjustment measures are adopted, the positions of an angle adjuster and an optical element are finely adjusted, so that high calibration precision is ensured, energy loss and equipment abrasion are reduced, calibration effect evaluation of a vibration sensor provides immediate feedback for operation, transparency of the calibration process is improved, an operator can make a more accurate decision based on detailed data, and the operation efficiency is improved. Therefore, the reliability and the operation efficiency of the calibration task are enhanced.

The invention provides a flushing system control method and device and related equipment, and relates to the technical field of medical control. The method is applied to a ventricular assist device and comprises the steps that ventricular assist device parameters are obtained, and the ventricular assist device parameters represent the running state of the ventricular assist device; determining a target flushing flow according to the parameters of the ventricular assist device; according to the target flushing flow, a flushing system is controlled to complete flushing of the ventricular assist device catheter. The target flushing flow is determined by acquiring the parameters of the ventricular assist device, so that the flushing process is accurately controlled, thrombus formation is prevented, the reliability of the ventricular assist device is improved, the safety of a user is guaranteed, meanwhile, the long-term performance of the ventricular assist device is optimized, the maintenance frequency and cost caused by improper flushing are reduced, and the service life of the ventricular assist device is prolonged. And more stable and effective support is provided for users.

The invention provides a fine management and control system for the whole life cycle of a drill hole, and relates to the technical field of coal mine informatization systems, and the system comprises a hole sealing parameter sensing unit which is used for collecting hole sealing sensing data based on a hole sealing sensor group; the hole sealing abnormity repairing unit is used for triggering and starting a secondary hole sealing program under the condition that the hole sealing abnormity condition is detected, and determining a corresponding hole sealing optimization strategy through a hole sealing repairing model; the extraction parameter sensing unit is used for collecting gas extraction sensing data based on the extraction sensor group; the extraction effect prediction unit is used for predicting a gas extraction quantity prediction result and a gas concentration prediction result; and the extraction abnormity early warning unit is used for generating an extraction early warning notice under the condition of detecting that the preset extraction abnormity condition is met. Therefore, fine control of real-time working state sensing is carried out on the hole sealing stage and the extraction stage of the drill hole based on the multi-mode sensing technology, and a fine control system in the whole life cycle of the drill hole is established.

The present invention provides a regenerated asphalt composition, an asphalt regeneration agent and uses thereof. Based on the total weight of the asphalt regeneration agent, the asphalt regeneration agent comprises 65wt% to 99.9wt% of a softener and 0.1wt% to 35wt% of a dispersant, wherein the softener is compatible with the soft asphaltene component in the aged asphalt, and the dispersant comprises a polar group that interacts with the asphaltene in the aged asphalt. The softener of the present invention is used as a diluent to soften the old asphalt and acts as a carrier of the dispersant; the dispersant can interact with the asphaltene to disperse and depolymerize the asphaltene, and the combination of the softener and the dispersant can restore the aged asphalt to a level close to the original performance.

The invention discloses slag-sulphoaluminate compound gelled seawater and sea sand mortar and a preparation method thereof, and relates to the technical field of building materials. Comprising the following component raw materials: 180-220 parts of functional aggregate; 100 parts of a cementing material; 40 to 50 parts of a functional mixing liquid; the functionalized aggregate is sea sand loaded with a nanocrystalline seed layer on the surface; the cementing material is prepared from granulated blast furnace slag powder, natural anhydrite and high belite sulphoaluminate cement clinker; the functionalized mixing liquid is seawater or artificial seawater dissolved with a composite thixotropic-flocculating agent. According to the scheme, the core problems of low strength and poor durability caused by interface looseness and erosion medium permeation of the seawater and sea sand concrete are solved; and full resource utilization of the seawater, the sea sand and the slag is realized, and high performance, high durability and remarkable economic benefits are achieved.

The invention provides a suspension bridge type vamp which comprises a vamp body, a plurality of first suspension cables are arranged on the vamp body, the first suspension cables are elastic suspension cables, the two ends of each first suspension cable are fixed to the vamp body, and the first suspension cables extend from the front end of the vamp body to the rear end of the vamp body or extend from the middle of the vamp body to the outer edge of the vamp body. The vamp provided by the invention has the following advantages: 1, the vamp has accurate stress adjusting capability; 2, the flexibility and adaptability are high; 3, the force dispersion effect and the durability of the vamp are excellent; and 4, the wearing experience and functionality are comprehensively improved.

The invention belongs to the technical field of inorganic gelling agent additives, and particularly relates to a strength deterioration resistant additive for flocculation and dehydration of cement residues, a synchronous grouting material and a preparation method of the synchronous grouting material, and the synchronous grouting material comprises the following components in parts by mass: 0.1-2 parts of a strong electron acceptor; 0.1-1 part of a strong proton acceptor; 0.1-2 parts of a high-charge metal ion compound; 90-180 parts of industrial solid waste; the strong electron acceptor is persulfate; the strong proton acceptor is cesium hydroxide or / and rubidium hydroxide; the high-charge metal ion compound is selected from at least one of ferric nitrate, ferric sulfate, aluminum nitrate or aluminum sulfate; the industrial solid waste is common industrial solid waste and superfine industrial solid waste. The synchronous grouting material has the advantages of being high in stability, excellent in mechanical property, low in cost, environmentally friendly, low in carbon and the like, and high-added-value utilization of dewatered cement slag type waste is achieved easily.

The invention belongs to the technical field of coatings, and particularly relates to an epoxy polyurethane modified polyaspartic acid ester zinc-rich primer and a preparation method thereof. The paint comprises a component A and a component B. The component A comprises the following raw materials: polyaspartic acid ester resin, epoxy resin, hydroxy acrylic resin, an organic solvent, zinc powder, a pigment filler, antirust aluminum powder, an adhesion promoter and other auxiliary agents. And the type of the composition contained in the component B is as follows: isophorone diisocyanate and a hexamethylene diisocyanate homopolymer. An existing radix asparagi product does not have a precedent for preparing a zinc-rich coating, and compared with the same epoxy zinc-rich heavy anti-corrosion coating, the coating disclosed by the invention is high in construction solid content, excellent in dryness, good in salt spray resistance, more excellent in long-term performance such as acid and alkali resistance and the like, and has aging resistance which is equivalent to that of polyurethane finish paint and does not exist in epoxy zinc-rich primer.

This utility model discloses a sample pretreatment device for rapid microbial detection, mainly relating to sample pretreatment equipment. It includes a heater, a heating plate, and an auxiliary structure. A control button is installed on one side of the heater. The upper surface of the heater is fixed to the heating plate via the auxiliary structure. A sample cup is placed on the upper surface of the heating plate. A stirrer is installed on one side of the heater. An adjustment structure is provided on the upper surface of the heating plate. The adjustment structure includes a circular frame, which is fixedly connected to the heating plate. A fixing groove is formed on the inner wall of the circular frame, and the fixing groove is slidably connected to the sample cup. The beneficial effects of this utility model are: it can conveniently fix the sample cup, preventing sample overflow or leakage due to shaking during stirring, thereby ensuring the stability and safety of the sample during stirring, significantly improving the accuracy of operation, and achieving the advantage of making the sample more stable during stirring.

The present application provides an intelligent gas flow monitoring method, including: detecting the current temperature of the gas, building a gas temperature prediction model, and obtaining a specific value of the temperature change; using a linear regression algorithm to establish a gas thermal expansion or contraction prediction model, and calculating the degree of gas thermal expansion or contraction based on gas temperature change data; predicting gas volume changes based on real-time temperature and pressure monitoring; building a flow rate and volume relationship model based on gas flow rate and volume change data, and predicting gas flow rate changes based on gas volume changes; calculating the difference between the predicted flow rate and the predicted flow rate through real-time flow measurement data; automatically adjusting and calibrating the flow measurement equipment based on abnormality detection and stability evaluation of the flow data; automatically adjusting the calibration period of the flow measurement equipment based on historical and real-time monitoring data; and using the predicted data and real-time data to calibrate the flow measurement of the equipment.

The application discloses a kind of gradient hierarchical utilization garbage incineration bottom ash preparation's zero clinker ultra-high performance concrete and its preparation method, including following weight parts raw materials: garbage incineration bottom ash 660-700 parts;Mineral powder 460-500 parts;Silica fume 35-45 parts;Fine quartz sand 380-420 parts;Activator 370-380 parts;Modifier 15-17 parts;Steel fiber 110-130 parts.Garbage incineration bottom ash includes following particle size and weight parts garbage incineration bottom ash: 8 μm below garbage incineration bottom ash 35-45 parts;8-40 μm garbage incineration bottom ash 75-85 parts;40-150 μm garbage incineration bottom ash 150-170 parts;150-500 μm garbage incineration bottom ash 380-420 parts.The application cooperates and utilizes garbage incineration bottom ash, mineral powder and silica fume, and does not use Portland cement as UHPC cementing material raw material, and UHPC preparation cost and carbon emission are greatly reduced.