25results about How to "Realize the combination" patented technology

This invention discloses a positioning fixture and welding method for welding landscape bridges, mainly relating to the technical field of welding devices. It includes a first base plate and a second base plate, each with several L-shaped blocks. A first sliding rod is slidably connected to each L-shaped block, and several arc-shaped plates are provided at the ends of the first sliding rods. A first spring is provided between the arc-shaped plates and the L-shaped blocks. It also includes fixing plates symmetrically arranged at both ends of the first base plate and used in conjunction with the second base plate. A first sliding plate and a second sliding plate are slidably connected to the first and second base plates, respectively. The first and second sliding plates are slidably connected, and a first welding torch is mounted on the first sliding plate. Furthermore, it includes a third sliding plate detachably connected to the first sliding plate, and a second welding torch is mounted on the third sliding plate. The beneficial effects of this invention are: solving the problem of low on-site construction efficiency in existing landscape bridge welding, improving the efficiency and quality of landscape bridge welding, and reducing the labor intensity of workers.

The utility model provides a miniature brushless ducted fan with LED (light-emitting diode) illumination, which comprises an outer shell, a lampshade is arranged on the front surface of the outer shell, a through air duct is arranged at the top of the outer shell, and an inverted turbofan is arranged in the air duct. The charging port is formed in the front face of the outer shell, the control switch and the indicator lamp are installed on the top of the outer shell, the lamp panel and the LED lamp beads are installed in the lampshade, the combination of the fan and the lighting function is achieved, the use requirements of a user in different scenes are met, and especially when the fan is used during night travel and outdoor camping, the user can enjoy cooling brought by the fan and can also enjoy the illumination function. According to the miniature brushless ducted fan, the LED lamp beads are distributed in an array mode, different light-emitting patterns can be formed by controlling the light-emitting sequence or brightness of the LED lamp beads, the functionality of the miniature brushless ducted fan is increased, and meanwhile the miniature brushless ducted fan can be made to be more practical.

The embodiment of the application provides a display device and a wireless identification security method. The device comprises a wireless communication chip, an authentication chip, a driving chip and a display substrate. The wireless communication chip is used for acquiring a wireless signal to be authenticated and sending the wireless signal to the authentication chip. The authentication chip is used for encoding the wireless signal to obtain encoded data, matching the encoded data with preset permission data to obtain a matching result, generating an authorized display instruction according to the matching result and sending the authorized display instruction to the driving chip. The driving chip is used for generating a display rectified waveform signal according to the authorized display instruction and sending the display rectified waveform signal to a display module. The display module is used for image display according to the display rectified waveform signal. The wireless signal is authenticated and then displayed by the display module, so that the combination of wireless communication and display can be realized.

The application discloses a method for preparing a graphite / aluminum layered composite material by means of pulse current, and relates to the technical field of composite materials, in particular to a method for preparing a graphite / aluminum layered composite material by means of pulse current.The method comprises the following steps: pretreating an aluminum alloy to obtain an aluminum alloy piece; pretreating graphite to obtain a graphite piece; stacking the aluminum alloy piece, the graphite piece and the aluminum alloy piece in sequence to form a connecting assembly; placing the connecting assembly in the middle of electrodes of a pulse current diffusion connecting device; connecting the connecting assembly by applying pressure and pulse current under a protective atmosphere; and heating and cooling to room temperature to obtain a composite substrate.The method directly heats the connecting assembly by means of pulse current, can efficiently utilize energy, and maximally reduces energy loss; and by means of the field-induced effects of joule heat, electromigration and electric plasticity of the pulse current, element diffusion can be accelerated, and the process time required for bonding can be reduced, so that time cost is reduced.The application further discloses a composite substrate, which comprises two aluminum alloy pieces and one graphite piece.

The invention discloses a target head cover structure based on winding and needling processes and a forming method of the target head cover structure, and belongs to the technical field of composite material structure manufacturing. Comprising a head cap and a cover body, the head cap is inserted into the mortise of the cover body through the tenon and is sewn and fixed through sewing fibers; the head cap and the mask body are sewn and then jointly subjected to chemical vapor infiltration and reactive infiltration densification treatment, so that in a connecting interface area of the head cap and the mask body, sewn fibers and carbon and silicon carbide matrixes generated in situ in the densification process are interwoven and embedded, and a three-dimensional continuous enhanced interface structure is jointly formed. According to the structure, an independent physical interface formed by an adhesive or a mechanical connecting piece is eliminated at the joint of the head cap and the mask body, so that structural fusion of the head cap and the mask body is realized. According to the invention, through a synergistic process of joggling, sewing and co-densification, the integrated forming of the component is realized, and the integrity, the bearing capacity and the production efficiency of the structure are remarkably improved while the product consistency is ensured.

The application relates to the technical field of anti-fake packaging materials, and discloses an anti-fake packaging material, which comprises a printing layer, a substrate layer, an information layer, a protective layer, a reflection layer and a bottom layer which are sequentially stacked, the information layer comprises a first optical structure with a target phase distribution and a second optical structure for generating a preset visual effect. The anti-fake packaging material has strong anti-fake performance, can consider various optical effects and reduces the cost. The application further discloses a wine box.

The application discloses a light adjusting module with a three-layer composite structure, which comprises a scattering layer, a gap layer and an angle control layer which are arranged in a composite manner, the gap layer is arranged between the scattering layer and the angle control layer, the surface of the scattering layer is provided with a plurality of first optical microstructures, the surface of the angle control layer is provided with a plurality of second optical microstructures, and the gap layer comprises a plurality of light adjusting channels for guiding light from the scattering layer to the angle control layer. The light adjusting device with the three-layer composite structure is a whole of the scattering layer, the gap layer and the outer angle control layer, the functions of the light adjusting channels and the angle control layer are coupled, high light efficiency is realized, the synchronization optimization of light angle control, anti-dazzle and light spot uniformity is completed, and the contradiction between'scattering reduction' and 'anti-dazzle loss of uniformity' in the traditional technology is broken through.

The application provides a fake news detection method and related equipment, and belongs to the technical field of natural language processing and information authenticity detection. The method comprises the following steps: preprocessing and segmenting an original input text to obtain a sentence set and score a candidate claim set obtained; converting the sentence into a single sentence declarative expression to obtain a normalized claim, and structurally constructing the normalized claim; simultaneously performing information retrieval according to the structural construction mode to obtain a candidate evidence, performing multidimensional consistency verification on the structured claim and the candidate evidence, and scoring to obtain a total verification score; and correcting the total verification score by using the matching degree of a news site and an IP address, and outputting a verification result. The application prepositions noise processing and fact positioning, adopts a structured claim for fine-grained verification, and corrects through cross-information source matching of an IP address and a news site, so that the accuracy, interpretability and identification ability for numerical / time tampering of fake news detection are improved.

The invention discloses a method for presetting gold-tin solder on a ceramic tube shell, and belongs to the technical field of semiconductor devices. Comprising the following steps: metalizing a welding area of a ceramic tube shell, and forming a metalized layer on the surface of the welding area; a solder height control board is provided, the solder height control board is provided with a plurality of limiting grooves used for containing solder and a metallization layer, the positions of the limiting grooves correspond to the positions of the welding areas of the ceramic tube shell in a one-to-one mode, and the solder is placed in the limiting grooves of the solder height control board; and the ceramic tube shell is attached to the solder height control plate, the metallization layer is made to make contact with the solder in the corresponding limiting groove, the ceramic tube shell and the solder height control plate which are attached are heated at the same time, the solder is melted, the solder is cooled, and the gold-tin solder is preset on the ceramic tube shell. The height of the preset gold-tin solder on the ceramic tube shell can be kept consistent, and the assembly stability and the contact stability during packaging of the ceramic tube shell can be improved.

This invention discloses a prototype- and confidence-driven passive adaptive classification system and method for medical images, relating to the field of medical image processing. It includes a data preparation module, a feature extraction and source domain prototype generation module, a joint prototype-guided pseudo-label generation module, a perceptual confidence tracking module, and a contrastive learning module. This invention employs the aforementioned prototype- and confidence-driven passive adaptive classification system and method for medical images to address the problem of medical image distribution differences caused by different medical institutions or equipment. It achieves efficient unsupervised domain adaptive training and progressive improvement from pseudo-labels to feature optimization without accessing the original source domain data, utilizing source domain information and unlabeled target domain data. It achieves significantly better performance than existing methods on multiple cross-domain datasets.

The present application relates to the technical field of metal powder material preparation, and particularly relates to a porous silver powder, a preparation method and application, by introducing a carbonate foaming agent into raw materials, the carbonate foaming agent can react with nitric acid generated in a liquid phase reduction process of silver nitrate and a reducing agent to generate carbon dioxide bubbles, and the carbon dioxide bubbles play an inducing role in a silver microcrystal formation process, so that the generated silver powder has a rich pore structure and a high specific surface area. Compared with the porous silver powder in the prior art, the porous silver powder has a higher specific surface area and sintering activity, by controlling the addition amount of the foaming agent, the pore structure, the specific surface area and the sintering activity of the silver powder can be accurately controlled, and the control method is simple, and the problems of low pore structure and high cost in the preparation of the porous silver powder in the prior art are solved.

This invention discloses an in-situ bio-fermentation device based on electro-methane conversion, belonging to the technical field of bio-fermentation. It includes a fermenter equipped with a feed pipe, an air inlet pipe, and an air outlet pipe. An enrichment culture chamber is located within the fermenter, with the feed pipe extending into it. The enrichment culture chamber provides growth sites for hydrogenophilic bacteria. A gas diffuser is located at the bottom of the enrichment culture chamber and is connected to the air inlet pipe. A hydrogen generator is connected to the air inlet pipe, and a gas circulation device is connected to the air outlet pipe. The gas circulation device includes a gas collection bag and an air pump. One end of the gas collection bag is connected to the air outlet pipe, and the other end is connected to the air inlet pipe via the air pump. This invention can improve the methane yield in anaerobic fermentation processes.

This invention discloses an electric flow regulating valve with feedback protection function, relating to the field of regulating valve technology. It includes a valve body, valve cover, valve stem, and handwheel. The handwheel is mounted on the upper end of the valve stem. The regulating valve includes a valve core and a drive motor. The valve core is mounted on one end of the valve stem and is located within the valve body. The valve cover is mounted on the valve body, and one end of the valve stem passes through the valve cover, with the valve stem and valve cover threaded together. The drive motor is mounted above the valve cover, and the valve stem is connected to the output end of the drive motor. Bolt rings are installed on the inner sides of both flanges of the valve body, used to connect the regulating valve to a pipe or flange. The drive motor drives the valve stem to rotate. The valve body is connected to an external pipe or a flange on the pipe via the bolt rings. The drive motor is an electric motor that operates under the control of a control system. The drive motor drives the valve stem to rotate, thereby raising or lowering the valve core, thus opening or closing the regulating valve or regulating the flow rate.

The application relates to the technical field of degradation reliability modeling, and provides a degradation process modeling method based on the Wiener principle and Gaussian process regression, which comprises the following steps: according to a workpiece vibration signal measured at actual equal-interval sampling time points, obtaining a data set through feature extraction and dimension reduction, describing the data set by using a Wiener process considering random effects of a drift parameter, obtaining an analytical form of a Wiener kernel, introducing Gaussian process regression to obtain a Gaussian regression model, performing parameter estimation on the Gaussian process regression model by using maximum likelihood estimation based on a training set, and predicting a test set by using the Gaussian regression model to obtain the effect of reliability evaluation and life prediction of equipment. The application realizes the combination of a data-driven method and a physical mechanism, the data information is more thoroughly mined, and the prediction accuracy of the Wiener kernel in the Gaussian process regression is obviously improved.

The application belongs to the technical field of two-dimensional material processing and preparation, and particularly relates to a two-dimensional material transfer device and a two-dimensional material transfer method. The two-dimensional material transfer device of the application comprises a two-dimensional material attaching module, the two-dimensional material attaching module comprises a first positioning unit for placing a growth substrate and a second positioning unit for fixing a target substrate, a two-dimensional material transfer module is arranged adjacent to the two-dimensional material attaching module, the two-dimensional material transfer module has a solution pool for storing a dissolving solution, the second positioning unit is movable to a first station to attach the growth substrate to the target substrate, and the second positioning unit is further movable to a second station to immerse the growth substrate in the solution pool. The device can realize the combination of the growth substrate and the target substrate and the removal of the growth substrate on the same device, and can automatically complete most steps of two-dimensional material transfer, thereby greatly improving the transfer efficiency. Meanwhile, large-area transfer of two-dimensional material can be realized.

This invention relates to the field of power transformer manufacturing technology, and particularly to a transformer winding structure and its wiring method based on a copper-aluminum eutectic plate. The invention discloses a transformer winding structure based on a copper-aluminum eutectic plate, comprising a winding body formed by alternating layers and winding of a copper-aluminum eutectic material and an interlayer insulator. The copper-aluminum eutectic material includes a copper surface layer, an aluminum substrate, and a eutectic layer. The thickness of the eutectic layer is 300nm-500nm, and the main crystalline phases of the eutectic layer are Al2Cu and Al4Cu9. The interfacial bonding strength of the eutectic layer is ≥300MPa. This invention's transformer winding structure and wiring method based on a copper-aluminum eutectic plate fundamentally eliminates the risks of delamination and heat generation by forming a high-strength, non-brittle nano-eutectic layer at the copper-aluminum interface. While ensuring interface reliability, it fully leverages the lightweight and cost advantages of aluminum-based materials, and utilizes the surface copper to achieve reliable electrical connections.

The utility model discloses a kind of concealed beam lock combined with mechanical password, including lock body, the lock beam of being set in lock body, key lock cylinder and mechanical password core, the mechanical password core includes rotatable lock bar, it is characterized by: the key lock cylinder is equipped with push piece, the lock body is equipped with elastic piece one, elastic piece two, and articulated with lever one and lever two, the lever one is equipped with clamping block one, the lever two is equipped with clamping block two, the lock beam is equipped with clamping groove, the lever one can rotate under the poking of lock bar and make clamping block one escape clamping groove;The lever two can rotate under the poking of push piece and make clamping block two escape clamping groove, the elastic piece one can promote lever one rotation and make clamping block one enter clamping groove;The elastic piece two can promote lever two rotation and make clamping block two enter clamping groove.This can realize that one person keeps key, and another person keeps password, unlocking needs two people to be present simultaneously, adopts key and password to open lock, to improve security, and reduce risk.

A deformation control method for newly-built structure above rail transit operating tunnel, which is combined with adjustable axial force anchor cable and pipe roof core control system, has mature technology and can be completely implemented on site with little operation difficulty. The method realizes active and fine adjustment of anchor cable axial force, provides data feedback combined with monitoring points on the operating tunnel floor, track and side wall, and can adjust the vertical deformation of existing line in real time, so that the rail transit structure is always in the optimal state, which cannot be achieved by the existing overpass scheme. The method makes it possible to overpass the operating tunnel in small distance and long distance, and realizes the effective combination of active control system, foundation pit support and permanent protection system of anchor cable. The shaft provides space for pipe roof construction and anchor cable installation, and also serves as the retaining structure of the new structure foundation pit. After the construction is completed, the shaft top is sealed to realize the permanent protection of the anchor cable device, and the entire system is effectively connected, reducing the project investment.

This invention proposes a patient adaptive respiratory regulation and control method and system based on isocarbonyl hyperventilation. It belongs to the field of medical device and intelligent control technology. The method includes: collecting real-time physiological parameters of the patient and ventilator settings to generate an initial physiological dataset; performing individualized dynamic estimation of key physiological parameters based on the initial physiological dataset to obtain real-time estimates of the patient's physiological dead space ventilation and carbon dioxide production rate; providing precise initial settings and main control quantities through feedforward prediction, fundamentally reducing the occurrence of large deviations; and combining intelligent feedback fine-tuning to quickly smooth out small disturbances, achieving a combination of "coarse adjustment" and "fine adjustment," making the stability and accuracy of PaCO₂ within the target range far exceed that of single feedback control.

The present application relates to the technical field of microwave circuit, especially to a compact L-band multi-path superconducting filter receiving front-end component, which is composed of a low-pass filter, a limiter, a first radio frequency switch, a straight-through radio frequency cable, a superconducting band-pass filter group, a second radio frequency switch, a low-noise amplification circuit and a digital control attenuator, and forms the compact L-band multi-path superconducting filter receiving front-end component through the connection relationship among them, realizes the combination of normal-temperature devices and superconducting filter components, improves the power capacity of the filter, and ensures the normal work of the receiving link under the failure condition of low-temperature environment.

The invention discloses a district ancient dwelling building group activation and updating construction method. The method comprises the following steps: acquiring multi-dimensional spatio-temporal information and establishing a digital twinborn model; building value evaluation and structure health degree zoning planning; material gene map construction and reversible repair and reinforcement, non-bearing space reconstruction and functional modular implantation; according to the invention, on the basis of systematic protection, adaptive transformation and value improvement of the existing ancient residential building group in the district, a system which covers early-stage digital investigation, value evaluation and zoning, and middle-stage structure restoration and reinforcement, space transformation and intelligent operation and maintenance management is constructed. According to the method, a systematic construction method for the whole process from district ancient dwelling building groups to later environment improvement and intelligent operation and maintenance is adopted, the district ancient dwelling building groups are activated and updated, sustainable utilization of cultural relic buildings is achieved through deep fusion of a digital technology and a traditional repairing technology, and the method has high popularization value.

The invention relates to a server with a partitioned micro-channel liquid cooling runner, which belongs to the server technology and comprises a shell part, a circuit board and a liquid cooling circulation block are fixed in the shell part, heat of the circuit board is transmitted to the liquid cooling circulation block through a heat conducting plate, and a first circulation pipe and a second circulation pipe are matched and communicated with a box body to enable cooling liquid to circulate and take away heat. The ultrasonic generator can prevent scaling of a micro-channel, the self-cleaning type turbulent flow filtering assembly is installed on the inner wall of the communicating box body and can regulate and control flowing of cooling liquid and automatically intercept impurities, the heat dissipation efficiency and the system stability are improved, and the fanning heat dissipation assembly is installed on the inner wall of the shell part and connected with the self-cleaning type turbulent flow filtering assembly through the synchronous connecting assembly. Air flow is accelerated to assist heat dissipation through operation, cooling liquid is driven to flow in the micro-channels, water cooling and air cooling are combined, impurities and redundant cooling liquid in the communicating box body are discharged in time through the liquid discharging and impurity removing assembly, and efficient heat dissipation and stable operation of the server are guaranteed.

The application discloses a kind of organic waste gas treatment device and system based on multistage coordination, it is related to waste gas treatment technical field, including condensation compensation module, for collecting the real-time temperature and heat tracing power output value of the inner wall of heat tracing pipeline each position point, in combination with preset boiling point threshold value, condensation distribution data are extracted;The concentration value of high-boiling component in waste gas is collected, in combination with condensation distribution data and waste gas residence time value;The application is based on temperature difference and power difference calculation condensation risk coefficient and is aggregated as risk area, realizes the space position positioning of condensate accumulation area and condensation intensity quantification, solves the problem that condensation risk identification in prior art relies on single temperature threshold value, cannot locate condensate accumulation area spatial distribution, provides spatial reference for subsequent microbial metabolism risk accurate identification of carbon source supply.

The mobile phone support assembly comprises a support and a bottle opener, the support is suitable for being connected with a mobile phone, the support is provided with a mounting groove, one end of the mounting groove is opened to form an opening, the bottle opener is rotatably mounted on the support, and the bottle opener has an unfolded state and a folded state. In the unfolding state, at least part of the bottle opener is located on the outer side of the mounting groove, a first included angle is formed between the plane where the bottle opener is located and the plane where the support is located, and in the storage state, the bottle opener is stored in the mounting groove; wherein the bottle opener is provided with a matching hole, and the side wall of the matching hole is provided with matching teeth suitable for being meshed with anti-skid teeth on the outer side of the bottle cap. According to the mobile phone support assembly, the combination of the mobile phone support function and the bottle opening function can be achieved.