304results about How to "Low efficiency" patented technology

Tailored doping of barrier layers enables balancing of the radiative recombination among the multiple-quantum-wells in III-Nitride light-emitting diodes. This tailored doping enables more symmetric carrier transport and uniform carrier distribution which help to reduce electron leakage and thus reduce the efficiency droop in high-power III-Nitride LEDs. Mitigation of the efficiency droop in III-Nitride LEDs may enable the pervasive market penetration of solid-state-lighting technologies in high-power lighting and illumination.

The invention discloses a marine main engine cabin entering simulation method and system based on multi-view measurement. The method comprises the following steps: acquiring cabin space depth image information through multiple view angles, constructing cabin environment three-dimensional point cloud data, and unifying multi-view angle point clouds to the same global coordinate system based on camera calibration; performing accurate fusion on the multi-view point clouds by adopting a point cloud registration algorithm which introduces a dynamic weight and a local rejection mechanism, and extracting a boundary of an effective space of a cabin by utilizing an alpha-shape algorithm; motion trail modeling is carried out on the main engine cabin entering process, meanwhile, rapid real-time calculation of the minimum gap between a main engine envelope body and a cabin boundary is achieved by constructing a gridding distance field of a cabin space, and therefore whether the risk of collision or insufficient space exists in a given cabin entering path of a main engine or not is judged. According to the invention, high-precision, high-efficiency and high-real-time host entry space verification can be realized in a complex and narrow in-cabin environment, and reliable technical support can be provided for optimization and decision-making of a marine host entry scheme.

The utility model provides a kind of deicing wind-resistant double-insulated overhead transmission cable, it is characterized by including steel wire tensioning element, inner insulation layer, aluminum alloy conductor layer, outer insulation layer;Utilize steel wire tensioning element to pass through aluminum alloy conductor layer, steel wire tensioning element inductive heat generation, heat is radiated to cable surface through the inner insulation layer with certain thermal conductivity, aluminum alloy conductor layer and outer insulation layer, can continuously generate heat to melt cable surface icing. Real-time heating cable surface, substantially reduce the possibility of cable surface icing in low-temperature freezing weather, reduce cable icing hazards, while the surface is designed wind channel structure, reduce the synergistic hazards of icing and strong wind, deicing efficiency is high, compared with other deicing methods efficiency is higher while cost is lower, beneficial to the development of industry, to improve power grid operation efficiency in turn, with popularization and utilization value.

The utility model discloses a prevent no -shaft spiral vane jumping device, the utility model relates to material conveying equipment technical field. Including: the shell assembly is rotated and is connected with spiral shaft assembly in the inner wall of shell assembly, the outer wall fixedly connected with gear box of spiral shaft assembly, the input of gear box is fixedly connected with speed -reducing motor, the inner wall fixed mounting of shell assembly has prevented vane jumping device, this device is through setting prevents vane jumping device, through the rolling contact of rotary drum and spiral shaft assembly, provides reverse restriction force when vane produces jumping tendency under external force, directly inhibits the jumping amplitude, and this kind of structure design can effectively respond to the radial jumping caused by uneven sludge viscosity, impurity impact etc, ensure that spiral vane runs stably, and the device reaches the purpose that prevents no -shaft spiral vane jumping device.

The utility model relates to the technical field of clamping jaws, in particular to a self-locking fast-assembly clamping jaw, which comprises a base, a release part, a lock catch, two torsion springs and two clamping jaws, when a tubular object needs to be clamped, the base is moved towards one side close to the tubular object, the two clamping jaws are stressed to rotate towards one side close to the tubular object, and when the two clamping jaws rotate to a preset angle, the release part is released. The lock catch abuts against the two clamping jaws, at the moment, the tubular object can be fixed through the two clamping jaws, when the tubular object needs to be taken down, the release part is pressed down, the release part drives the lock catch to move towards the side away from the clamping jaws, limiting on the two clamping jaws is relieved, the two clamping jaws are reset through resilience force of the two torsional springs, and limiting on the tubular object is relieved through the two clamping jaws. Therefore, the problem that an existing power transmission line bolt fastening mode is low in efficiency is solved.

The utility model discloses a combined tool for machining a thrust surface of an engine cylinder block, which relates to the technical field of machining the thrust surface of the engine cylinder block and comprises a fixing plate, a lifting adjusting mechanism is arranged on one side of the fixing plate and comprises a support frame, and the support frame is fixedly connected to one side of the fixing plate. Through the arrangement of the lifting adjusting mechanism, the function of lifting and adjusting the height of the cutter according to the heights of different engine cylinder bodies can be achieved, in the using process, the first motor is started to drive the cutter body to ascend and descend to a proper height, and in the lifting process of the cutter body, the sliding block slides on the outer wall of the sliding rail, so that the cutter body can be lifted and descended. According to the combined cutter, the cutter body can ascend and descend more stably and smoothly, the situation that the height of an engine cylinder body is high or low and the cutter cannot normally mill a thrust surface due to the fact that the height of the combined cutter cannot be adjusted according to the height of an engine can be avoided, and the flexibility and the application range of the combined cutter are guaranteed.

This invention discloses a fruit quality detection method and system based on a fruit quality detection model. First, the original hyperspectral image R of the fruit to be detected is acquired and preprocessed. Then, the preprocessed hyperspectral image R2 is input into the fruit quality detection model to obtain the surface defect results and internal quality index values ​​of the fruit. Compared with the prior art, this invention can achieve simultaneous detection of the internal and external quality of the fruit at low cost and high efficiency, and obtain the fruit quality grade result.

This invention provides a spiral drilling mining robot and an adaptive cutting control method, belonging to the field of mining equipment technology. The technical solution is as follows: a spiral drilling mining robot includes a tracked walking mechanism, a drill rod unit, a power system, a support device, and a sliding platform device; this invention also provides an adaptive cutting control method, including the following steps: first, borehole preparation and gas detection; second, adaptive borehole mining operation; third, drilling completion and equipment reset; the beneficial effects of this invention are: this invention uses a gas concentration sensor on the drill bit to detect the gas concentration in real time and automatically adjusts the nitrogen injection volume, effectively controlling the gas concentration. Simultaneously, the equipment can dynamically adjust the drill bit rotation speed and propulsion speed according to changes in drill bit load and rock hardness, improving tunneling efficiency; furthermore, the tunneling equipment features a modular design, enabling the equipment to flexibly cope with drilling requirements at various depths.

This invention relates to the field of water treatment, specifically to an iron-doped biomass resource-based water treatment catalyst, its preparation method, and its application. The preparation of the water treatment catalyst includes the following steps: Step 1, drying and dehydrating recovered pigeon manure; Step 2, finely sieving the dried pigeon manure; Step 3, heat-treating the purified pigeon manure in a muffle furnace to obtain resource-based biochar; Step 4, ball milling dopamine hydrochloride, ferric chloride hexahydrate, and resource-based biochar at a mass ratio of 1:(5-15):(80-100); Step 5, calcining the ball-milled material in a tube furnace at 850-950℃. The water treatment catalyst provided by this invention can rapidly reduce the antibiotic content in wastewater, while accelerating antibiotic removal under ammonia nitrogen conditions. It achieves long-term continuous purification during long-term reaction, exhibiting good stability and removal effect, and is beneficial for achieving low-cost treatment of agricultural waste and efficient purification of new pollutant wastewater.

This invention discloses an automatic verification and risk warning method for international trade information based on smart ports. It collects multi-source document data, including customs declarations, bills of lading, transportation routes, payment vouchers, and certificates of origin, and converts them into a standardized format through field mapping rules. A cross-document verification rule base is established, and rule matching is performed on key fields such as invoice amount and declared price, and bill of lading quantity and packing list, using a weighted scoring mechanism to calculate consistency scores. A spatiotemporal graph of trade behavior is constructed, and risk characteristics are statistically analyzed using an improved random walk algorithm, outputting a dynamic risk feature matrix. This matrix is ​​matched with a historical risk case database, and the probability of risks such as smuggling, false declarations, and tax evasion is calculated in conjunction with regional risk benchmarks. Risk thresholds are dynamically adjusted based on port clearance flow, triggering adaptive warnings and generating warning information including warning level, risk type, and inspection measures, thereby improving the intelligence level of port supervision.

The application provides an engine active clearance design method, and belongs to the technical field of aero-engines. The method comprises the following steps: constructing a rigid-flexible coupling finite element model coupled with multi-body dynamics and finite elements; solving deformation under gyroscopic effect and inertial load and deformation under thermal coupling effect when the engine is in use; extracting clearance deformation between a rotating rotor and a rotating stator and clearance deformation between a rotating rotor and a stationary stator based on the solving of the deformation; identifying a deformation sensitive area; performing multi-objective optimization on the structure of the deformation sensitive area; based on the optimized result, and considering other factors that have an influence on the clearance between the rotor and the stator, designing an initial installation clearance value that takes into account safety and efficiency, wherein the other factors include radial movement of bearing and fulcrum elastic elements, rotor and stator runout, and relative axial position change of the rotor and the stator. Through the processing scheme, the accuracy of the active clearance design is improved, the safety and efficiency of the engine are taken into account, and the risk of engine collision and abrasion is reduced.

The utility model relates to the technical field of mechanical engineering, and discloses a cutting and measuring integrated tool which comprises a cover plate, the top of the cover plate is fixedly connected with a fixing piece, the rear side of the top of the cover plate is fixedly connected with a connecting table, the top of the front side of the connecting table is fixedly connected with a first air cylinder, and the output end of the first air cylinder is fixedly connected with a movable plate. The bottom of the moving plate is fixedly connected with two pressing blocks, the front side of the moving plate is fixedly connected with two first testing needles, and the rear side of the top of the cover plate is fixedly connected with a second air cylinder. According to the utility model, the pneumatic scissors are used to cut off the protruding redundant metal inner core of the product, the first cylinder and the second cylinder drive the first test needle and the second test needle to test the product, and the shell and the inner core of the product are tested at the same time, so that the problems that the working efficiency is influenced and the cost is increased due to separate cutting and testing of the existing equipment are solved.

The application relates to a vehicle data processing method and device, a vehicle and an electronic device. The method comprises the following steps: acquiring a data file of a vehicle; reading all binary files in the data file in parallel through multiple reading threads to obtain data of each binary file and write the data into a memory; distributing the data of each binary file to a parsing thread pool; parsing the corresponding data by the parsing thread pool to obtain multiple structured data; performing time alignment on the multiple structured data to obtain combined frame data; and serializing the combined frame data into a playable file. According to the application, the data is read through multiple threads, and the data is parsed in parallel through multiple parsing thread pools, so that different types of data are uniformly processed, the efficiency of obtaining the playable file is improved, and thus the problem of low efficiency of obtaining the playable file according to the vehicle data is solved.

This application relates to the field of power distribution system technology, and in particular to a testing method and system for substation measurement and control devices based on neural networks. The method includes: constructing a full-link signal topology map of the substation; extracting the correlation features of each signal node from various types of configuration files; inputting the full-link signal topology map and correlation features into a pre-trained graph neural network, which matches signal node pairs to obtain matching point pairs, and generating a test sequence consisting of simulated excitation signals and expected response information based on the matching point pairs; triggering the corresponding simulated excitation signal according to the test sequence, acquiring feedback signals in real time, comparing the feedback signals with the expected response information, and determining the test results. This application effectively reduces the manual burden of testing substation measurement and control devices and improves test accuracy.

This utility model relates to the field of air curtain clip pliers, specifically to an automotive air curtain clip pliers and a tip bending fixture, including a worktable and a clamping mechanism. The clamping mechanism includes a rotating assembly, a bidirectional screw, two sleeves, two connecting rods, two clamping plates, and two supporting plates. The worktable provides the installation conditions for the clamping mechanism. When it is necessary to clamp a regular snap ring pliers, the regular snap ring pliers are placed on the two supporting plates and the two clamping plate supports. Rotating the rotating assembly drives the bidirectional screw to rotate, which in turn drives the two sleeves to move away from each other. The two sleeves drive the two clamping plates on the two connecting rods to move towards the side closer to the supporting plates until the two clamping plates clamp the regular snap ring pliers, thus completing the fixation of the regular snap ring pliers. This solves the problem of low efficiency in traditional fixing methods.

The invention relates to the technical field of welding auxiliary devices, in particular to welding equipment for vacuum cup production. According to the technical scheme, a machining table is included; the supporting frame is fixedly connected to the machining table; the back plate is fixedly connected to the supporting frame; the supporting plate is arranged on the supporting frame; the sleeve is arranged below the supporting plate; and the at least two groups of fixing units are uniformly distributed on the sleeve in the circumferential direction and can be driven to stretch out and draw back so as to centrally fix the liner by taking the axis of the sleeve as the center. The inner container and the cup body are coaxially centered and fixed respectively, so that full-automatic high-precision alignment and fixation between the inner container and the cup body are realized; then the inner container is driven to be accurately inserted into the cup body, the inner container and the cup body are stably rotated, girth welding is stably implemented, and welding operation is completed; in the whole process, besides the feeding operation of the inner container and the cup body and the collecting operation of finished products, manual intervention can be removed, and then efficiency limitation and quality inconsistency of the manual link are eliminated.

The utility model discloses an ASA plastic particle drying device that dries uniformly relates to ASA modified plastics production technical field, including drying cylinder and the support frame that is connected in the outside of drying cylinder, the bottom of drying cylinder is connected with the discharge cylinder, and the both sides of drying cylinder and support frame are provided with through -hole, and the application passes through drying disc cooperation spiral blade and the disc that scatters, makes material and will carry out rolling and scattering when drying, solves the problem of lower efficiency when drying device accelerates to material drying through the stirring measure, is favorable to improving the work efficiency of drying device, and the application can convey the material that rolls to the middle part on the drying disc to the disc that scatters and scatters on the disc that scatters through spiral blade cooperation, and after material drying is completed, can also discharge material through spiral blade reverse, solves the problem that drying is not enough uniform when drying device dries material, is favorable to improving the practicality of drying device.

The utility model provides a sheet part punch tapping indexing device, including rotation indexing mechanism, rotation indexing mechanism includes the fixed baseplate of being fixedly connected with drill press concentrically, rotation indexing mechanism still includes rotation baseplate, rotation baseplate concentric indexing rotation relative fixed baseplate, and rotation baseplate drives rotation through the hand wheel drive mechanism of installation in vertical side surface, hand wheel drive mechanism drives rotation baseplate rotation through right angle bevel gear transmission, rotation baseplate concentric fixedly links nut pressure mechanism and drives nut pressure mechanism concentric rotation, and nut pressure mechanism includes support frame, and support frame realizes sheet part synchronous rotation through the concentric pressure fixed installation sheet part of nut and elastic pad. The utility model reduces sheet part punch tapping waste rate to 2%, compact structure, convenient operation, guaranteeing accuracy reduces processing cost at the same time.

[Object] To provide a secondary battery material that is used in a lithium ion battery, a negative electrode active material including the secondary battery material, and a secondary battery including the negative electrode active material. The secondary battery material gives a secondary battery having high charge and discharge capacity, initial efficiency, and capacity retention rate as a whole and having an excellent balance of these characteristics. [Solution] A secondary battery material contains Si (silicon), O (oxygen), and C (carbon), and the content ratio x of O to Si satisfies 0.1 ≤ x ≤ 2, and the content ratio y of C to Si satisfies 0.3 ≤ y ≤ 11.

The utility model discloses a local positioning device for a laser cutting bed, which belongs to the technical field of laser cutting bed positioning and comprises a base and a box arranged at the top end of the base and used for protecting the laser cutting bed. A bottom frame is fixed to the inner bottom wall of the base, a first motor is installed on the vertical side face of the bottom frame, a first two-way lead screw with the end inserted into the bottom frame is installed at the driving end of the first motor, the periphery of the first two-way lead screw is sleeved with two vertical frames, and a fixing frame is connected to the top end of the bottom frame. A first rotating motor is installed on the inner bottom wall of the fixed frame, the driving end of the first rotating motor is connected with a disc in a sleeving mode through a first rotating rod, and moving frames are tightly attached to the vertical inner walls of the two vertical frames. And chippings and impurities in the cutting process can be conveniently collected, multi-face automatic machining can be conveniently conducted on top end components of different sizes, manpower is saved, and the use efficiency is improved.

The application provides an electric energy conversion efficiency optimization method and related device. The method comprises: obtaining circuit component operating parameters and circuit switching frequency parameters; determining an initial time delay based on the circuit component operating parameters and the circuit switching frequency parameters; obtaining a plurality of stepped current values based on the initial time delay and a preset stepped time delay, each stepped current value being a current parameter corresponding to a time period after each step of the initial time delay, and the plurality of stepped current values being based on current signals from a current acquisition circuit module; and determining a target time delay based on the plurality of stepped current values. In this way, different target time delays can be determined based on the obtained current parameters in various module cases, the target time delays can change the target switching tube conduction points of different types of single-ended primary inductance converter circuit systems, the electric energy conversion efficiency is improved, and the efficiency difference and reliability risk between different modules caused by differences are eliminated.

This invention discloses an in-situ ecological restoration device for river silt, relating to the field of silt treatment. A telescopic mechanism is provided on a floating plate, with a dispensing chamber at its lower end. A first moving rod and two second moving rods are arranged within the dispensing chamber. The lower end of the first moving rod passes through a carrying plate, which is connected to microbial inoculants. An adjustment mechanism is provided within the dispensing chamber, causing the two second moving rods to move downwards and the first moving rod to move upwards, so that the lower ends of the two second moving rods are outside the dispensing chamber and in contact with the carrying plate, separating the first moving rod from the carrying plate. This device, through the telescopic mechanism, can directly dispense microbial inoculants into the dispensing area via the carrying plate, accurately placing the microbial inoculants into the silt. Furthermore, the device can quickly separate from the microbial inoculants, preventing them from being extracted from the silt and affecting subsequent silt treatment efficiency.

The utility model belongs to the technical field of termite killing devices, and particularly relates to a reservoir termite bionic barrier membrane type killing device which comprises a first trapping bin, a cleaning mechanism is arranged in the first trapping bin and comprises a scraping plate, the front side and the rear side of the scraping plate are both fixedly connected with sliding plates, and the sliding plates are arranged on the first trapping bin. A threaded hole is formed in the left side of the front sliding plate, a threaded rod is connected to the inner wall of the threaded hole in a threaded mode, and a motor is fixedly connected to the left side of the threaded rod. A sliding plate slides to drive a scraping plate to move to scrape termite corpses above a bionic screen membrane to a discharging hole, and then the termite corpses fall into a first collecting box to be collected, the range of a reservoir dam is wide, a traditional device needs to regularly and manually clean the corpses and replace medicine, efficiency is low, and cost is high, and according to the design, manual intervention is reduced through automatic cleaning of a cleaning mechanism; the method is especially suitable for remote areas or areas with complex terrains, and maintenance frequency is reduced.

The application relates to a kind of knitting loom, including knitting machine main mechanism, the knitting machine main mechanism includes base, support column, intermediate large dish, middle top rod, top large dish, top support, wire feeding disc support, rotary cylinder, needle hooking groove, self-positioning sinker, hook type closed needle, lower cloth rotary frame;The support column is provided with multiple groups, is evenly fixed on the base, the intermediate large dish is fixed on the support column, the middle top rod is provided with multiple groups, is evenly fixed on the intermediate large dish, the top large dish is fixed on the middle top rod, the top support is fixed on the top large dish, the application can effectively reduce the problem that fabric appears edge mark due to the running roundness of knitting needle is out of tolerance, improve the problem that the difficulty of repair is caused by quick positioning reset in the process of disassembly and maintenance;Reduce the phenomenon that frequent downtime is caused by yarn winding or breakage, improve production efficiency.

The application discloses a prefabricated component forming production line and a production method thereof, relates to the prefabricated component forming technical field, and aims at solving the problems that the existing production line needs manual intervention to complete the mold loading, mold dismounting and mold material transfer in the whole process, consumes a large amount of manpower and influences the production efficiency. An integrated multi-position mold is arranged on the upper surface of a feeding conveyor, the integrated multi-position mold is internally provided with mold cavities, and the mold cavities are four in number; a material collecting groove is arranged on the front end surface of a vibrating roller table, a material discharging pipe is arranged at the lower end of one side of the material collecting groove; a material scraping roller table is arranged on the front end surface of the material collecting groove; a drying chamber is arranged on the front end surface of the material scraping roller table; a curing chamber is arranged on the front end surface of the drying chamber; a prefabricated component conveyor is arranged on the front end surface of the curing chamber; a guide mechanism is arranged above the curing chamber, and a mold stripping mechanism is mounted on the lower surface of the guide mechanism.

The utility model provides a kettle for dehydration and alcohol removal of dichloroethane, which comprises a reaction kettle, the reaction kettle comprises a kettle body, a stirring mechanism is fixedly arranged at the top of the kettle body, a stirring shaft is fixedly connected with a transmission mechanism through a support rod, the bottom of the transmission mechanism is fixedly connected with a mixing mechanism, the mixing mechanism comprises a connecting seat, a stirring rod and a hydraulic cylinder, the connecting seat is fixedly connected with the bottom of the enclosure, the top end of the stirring rod is rotatably connected with the interior of the connecting seat, and a plurality of uniformly distributed rod bodies are arranged on the stirring rod. The stirring mechanism and the mixing mechanism are arranged in the kettle body and are matched to realize full mixing, and the mixing mechanism can be folded after stirring, so that the mixing efficiency can be improved, the subsequent standing layering cannot be influenced, the production period of dichloroethane can be effectively shortened, the production efficiency is improved, and the production cost is reduced. The dichloroethane recovery solvent is subjected to washing alcohol removal treatment, and the yield of acylation reaction is better stabilized and improved, so that the solvent scrap consumption and the production cost are reduced.

The utility model relates to the field of sewage treatment discloses a kind of floating oil collecting device and sewage treatment system, the floating oil collecting device includes heating assembly, containing piece and suction piece.The containing piece is opened with the containing groove of notch upwards, and the containing groove is used to contain the liquefied floating oil produced when the heating assembly heats floating oil layer, and the suction piece is used to extract the liquefied floating oil from the containing groove.The floating oil collecting device collects liquefied floating oil through the containing groove, so that liquefied floating oil is separated from other liquids in waste liquid pool, and then the suction piece removes the liquefied floating oil in the containing groove, thereby completing the separate collection of floating oil.The floating oil collecting device largely avoids extracting waste liquid together with floating oil, reduces the difficulty of subsequent floating oil reuse, and also ensures the collection efficiency of floating oil.

The utility model relates to a reagent weighing and filling machine positioning structure, including base and the position adjustable setting first locating plate and second locating plate of base both sides, be equipped with the limiting portion of three positions of first locating plate can be positioned to, when first locating plate removes respectively to these three positions, three reagent bottles can be located respectively below liquid filling head, along the length direction of base, be equipped with tension spring between second locating plate and base, the both sides of base are respectively arranged the symmetrical sliding slot, first locating plate includes the first vertical board and first horizontal board of each other perpendicular setting, second locating plate includes the second vertical board and second horizontal board of each other perpendicular setting. This reagent weighing and filling machine positioning structure is when placing the reagent bottle whole to different weighing and filling machine and carries out filling, need not manually to the reagent bottle positioning, positioning is accurate, can also improve work efficiency simultaneously.

This invention provides an easily recyclable, floating cyano-modified carbon nitride catalytic reactor for the natural photodegradation of polluted water bodies from dyeing and printing industries, along with its preparation method and application, belonging to the field of photocatalytic water treatment. Addressing the problems of difficult recovery and low carrier separation efficiency of traditional powder photocatalysts, this invention provides a carbon nitride photocatalytic material co-modified with cyano and sodium ions. This material is loaded onto graphite felt to form a photocatalytic film, which is then wrapped and fixed by an anti-floating mesh to constitute a floating catalytic reactor. The strong electron-withdrawing effect of cyano groups and the intercalation coordination effect of sodium ions synergistically promote the separation and migration of photogenerated carriers. This reactor is self-floating and easily recyclable, and can efficiently degrade organic dye pollutants in dyeing and printing water bodies under natural light, making it suitable for the remediation of static or slow-flowing water bodies such as rivers in dyeing and printing industrial parks. This invention features a stable structure, easy recovery, and modular deployment, providing a feasible solution for the transformation of photocatalytic technology into practical dyeing and printing water treatment projects.