684results about How to "Quality assurance" patented technology

The invention discloses a multi-user sharing-oriented multimedia network video recommendation method, which comprises the following steps: firstly, constructing multi-user characteristics by utilizing collected program information in a multi-user sharing environment, and constructing a leading user label according to the similarity of the program characteristics and the continuity of user watching behaviors, so that separation of multi-user mixed logs is realized; performing periodic multi-user identification prediction of future sessions; secondly, building a user interest mining model based on a time-varying LinUCB algorithm to learn interest changes of a user for each program theme, and enhancing the personalized ability and efficiency of a recommendation system from three aspects of parallel calculation, adaptive control of an exploration coefficient and incremental updating based on LSTM; and finally, establishing an article quality model based on a non-time-varying LinUCB algorithm to further ensure the program quality, and integrating the two algorithms into a final recommendation system model by adopting a cross weighting strategy to form a final program recommendation list. The novelty and accuracy of the recommendation result are ensured.

The utility model discloses a kind of projection welding machine with nut welding detection, comprising: projection welding machine body;Control cabinet, install on the projection welding machine body;Alarm device, install on the control cabinet;Mounting table, fixedly connected on the projection welding machine body;Conveying mechanism, set on the mounting table.The utility model is welded in nut after projection welding machine body to workpiece, while taking off workpiece from welding platform by staff, workpiece is placed on the conveying belt on conveying mechanism, opens drive arrangement, conveying belt drives workpiece to move to the detection position of visual inspection mechanism, opens visual inspection mechanism, visual inspection mechanism carries out photographing to welding position, the data transmission of photographing is in control cabinet, control cabinet analyzes welding effect, when defect occurs, alarm device issues alarm signal to remind staff, this structure design, prevent defective workpiece from on market, ensure workpiece product quality and reliability.

This application provides a method, system, medium, and equipment for detecting thermal hazards in tunnels, relating to the field of tunnel safety detection. The method includes: acquiring geological feature data of the target tunnel; identifying a group of thermal hazard parameters with a correlation greater than a set threshold; setting a quantitative scoring range based on this; using the analytic hierarchy process (AHP) to assign weights and calculate hazard scores; then, combining relevant data to establish a dataset and training a lightweight gradient boosting model; finally, inputting data from an unexcavated tunnel section into the model to output the thermal hazard level. This application, by acquiring geological feature data, can accurately understand the environment, screen key parameters to eliminate redundancy, quantify parameters, and rationally allocate weights to ensure objective and accurate scores. It enables tunnel thermal hazard detection and early warning, providing guidance for prevention and control, reducing impact, and is of great significance to tunnel engineering.

This utility model discloses a conical drum device for a horizontal decanter centrifuge, relating to the field of horizontal decanter centrifuge technology. It includes a straight drum body and a conical drum body, with a positioning component between them. The positioning component includes an inner positioning groove fixedly formed on the inner wall of the end of the straight drum body, and an outer positioning groove fixedly formed on the outer ring of the end of the conical drum body. The outer and inner positioning grooves are interlocked. This utility model, through the installation of the positioning component, pre-positions the welding area between the straight and conical drum bodies before welding, thereby ensuring the welding quality. This solves the problem in existing horizontal decanter centrifuges where the conical and straight drum bodies cannot be pre-positioned before welding, leading to easy misalignment during welding and affecting the welding quality.

The utility model discloses a kind of plastic accessory automatic polishing mechanism, including workbench, intercept net and threaded rod;The side of workbench is provided with recessed frame, the side of the side of recessed frame is provided with motor A;Intercept net is arranged in the top side of workbench, and the top of workbench is provided with slide rail;The utility model is slid on slide rail by cylinder A to promote moving lug, can accurately move plastic accessory to specified polishing position, cooperate the fixing of plastic mould to plastic accessory, ensure that plastic accessory is stable in position during polishing process;Through the collaborative work of cylinder A, motor A, cylinder B and motor B and the like components, realize a series of operations such as plastic accessory from clamping, polishing component moves to polishing operation and waste cleaning automation, reduce manual intervention;Through dust collector and hopper of workbench bottom formed waste cleaning system, waste generated can be sucked in time during polishing process, avoid waste accumulation.

The application relates to a pit mud preparation system, which comprises a feeding device through which pit mud is fed, a first cutting device which cuts the pit mud, a first conveying device, a second cutting device which cuts the pit mud again, a second conveying device, a first stirring device which stirs the pit mud after adding water, a granulating device which prepares the pit mud into strips, a third conveying device, a second stirring device which stirs the pit mud again after adding water, and a forming box. The application can improve the uniformity of the pit mud when the pit mud is cut through the first cutting device and the second cutting device. The pit mud is stirred twice through the first stirring device and the second stirring device, and the pit mud is granulated again through the granulating device between the two times of water stirring, so that the soaking effect of the pit mud is improved, the phenomenon that the pit mud is dry and wet after water stirring is avoided, the stirring effect of the pit mud is guaranteed, and the quality of the prepared pit mud is guaranteed.

The utility model relates to vehicle technical field, specifically disclose a fastener, vehicle body and vehicle, and the fastener can be connected with the surface abutment of the connecting piece through the abutment surface, the fastener is provided with the flow channel, the flow channel penetrates the abutment surface and the outer surface except the abutment surface of fastener, the flow channel can form the outflow channel, break the continuous gap structure, interfere with the formation of capillary action, thereby reduce the infiltration and accumulation of electrophoretic paint liquid between fastener and connecting piece, and the flow channel can provide the outflow path for the liquid in the gap between fastener and connecting piece, when the liquid drainage process, liquid can be discharged outward through the flow channel, reduce the residual amount in the gap, thereby reduce the outflow amount of liquid when drying. And drying process, the flow channel provides the pressure relief channel, reduces electrophoretic paint liquid because of the pressure difference is extruded and forms the flow mark, reduces electrophoretic polishing process, guarantees the anticorrosive performance and appearance quality of vehicle body.

The utility model relates to winter construction new pouring concrete heat preservation matching facilities belongs to concrete construction technical field, including tarpaulin, the inside setting of tarpaulin has new pouring concrete body. The utility model has the beneficial effect that through the setting of heat transfer zone, can continuously supply heat, can last heat preservation, guarantees the concrete quality of winter construction, and heat transfer zone presents the structure of multiple rows, supplies heat as much as possible for more new pouring concrete body, and the non - woven fabric has better moisture - proof, ventilation, pliable, nontoxic, the characteristics such as affordable price, and the above structure can disposable investment, recycling, material - saving environmental protection, so that the structure has energy - saving environmental protection, and heat transfer zone, non - woven fabric procurement unit price is low, simple operation, wide application, so that the structure has economy, and the setting of tarpaulin can resist gale and heavy rain weather, as much as possible reduces the influence of external factors to new pouring concrete, is applicable to all winter construction concrete heat preservation maintenance.

The utility model discloses a kind of plush composite surface treatment devices, belong to the technical field of fabric processing, it includes processing body, the fabric body is slidably connected in the processing body, the collecting box is connected in the processing body, the rotation is connected with shaft one and shaft two in the processing body, the motor is fixedly connected in the processing body, the scraper one and scraper two are fixedly connected in the processing body, the shaft one is equipped with cleaning structure outside, the cleaning structure is connected with shaft two, the cleaning structure is slidably connected in scraper one outside. The utility model is through being arranged shaft one, shaft two, motor and cleaning structure, the cooperation between this processing device, shaft one and shaft two by cleaning structure, so that cleaning plate one and cleaning plate two can realize the function of reciprocating movement, it is convenient to clean the impurity remaining on the surface of scraper one and scraper two, thereby guarantee the quality after subsequent fabric cleaning, guarantee the flexibility of the processing device.

The utility model relates to the technical field of roasting furnace, concretely is a vertical additional temperature roasting furnace automatic sealing material dropping device, including the material dropping box, the material dropping box top is provided with the material dropping pipe connected with the roasting furnace discharge gate, the material dropping box inside is installed with the conveyer belt, the conveyer belt is driven through drive motor, the conveyer belt is opened with the air hole, and is located conveyer belt bottom and is provided with cooling fan, the cooling fan is used for the material cooling on conveyer belt through air hole, be provided with gravity filling machine on the material dropping box, the feed inlet of gravity filling machine is located the discharge end of conveyer belt, the gravity filling machine bottom is provided with sealing machine. The utility model has the advantage that the processed material is directly packed, solves the existing roasting furnace discharge and the transportation process, the material is easy to be damp and contact with external material, leads to the metamorphic problem of problem.

The application discloses a leveling device and method for bridge support assembly and belongs to the technical field of bridge support assembly; the leveling device comprises a supporting frame, a conveyor and a pressure applying and leveling assembly; the pressure applying and leveling assembly applies pressure through a leveling oil cylinder, then height adjustment and state detection are realized with the help of the leveling oil cylinder and a distance sensor, and a pressure sensor is arranged between the leveling oil cylinder and a horizontal fixing plate to monitor pressure; manual operation is replaced by mechanical automation, the efficiency of bridge support assembly is remarkably improved, accurate measurement and control are realized through the sensor, human errors are avoided, leveling precision and assembly quality are improved, human cost and labor intensity are reduced, and reliable guarantee is provided for bridge support assembly.

The application belongs to the technical field of dust removal and discloses a nylon chip spinning melt pre-dust removal system, which comprises a dust removal box, an inclined plate, a driving assembly and a feeding hopper. A lower opening is formed below the lower part of the lowermost inclined plate at the bottom of the dust removal box, and a lower feeding hopper is arranged in the lower opening. A plurality of air suction openings are further formed in the inner walls of the opposite sides of the dust removal box, and the plurality of air suction openings are communicated through connecting pipes. An air suction assembly for sucking air from the connecting pipes is further arranged on the connecting pipes. The driving assembly drives the inclined plate to reciprocating swing, and the nylon chips on the inclined plate are shaken to make the dust attached thereto float. The air suction assembly sucks air from the connecting pipes to make the plurality of air suction openings generate suction force. After the external air enters the dust removal box through the feeding hopper and the lower feeding hopper, the air suction openings suck the air away, forming air circulation and taking away the dust shaken by the inclined plate and the dust floating in the process of the step-by-step falling of the inclined plate. The dust attached to the nylon chips is removed, and the quality of the nylon chip spinning product is ensured.

The utility model discloses a CVD coating frock suitable for arc top blind pipe class product outer wall surface, including cloth gas board, install a plurality of support pegs on cloth gas board, and arc top blind pipe adopts the mode of arc top downward, flat mouth upward and deposits, be equipped with the gas hole on the cover, and the support post one side is equipped with the thimble, and the support peg body and the support post lower part all are equipped with the support ring board, and the support ring board's lower part all are equipped with the assembly guide rod, and the assembly guide rod both sides are equipped with the first plane, and the neck-in portion outside is equipped with the buckle, and the buckle middle part is equipped with the assembly hole that cooperates with the assembly guide rod, and the assembly hole both sides are equipped with the second plane corresponding with the first plane, the utility model discloses arc top blind pipe adopts the mode of arc top downward, flat mouth upward and deposits, and the technological gas goes in and goes out, and arc top downward is favorable to dispersing airflow, guarantees the deposition effect of arc top, from outside, and the support peg and the support post lower part are connected with cloth gas board through the buckle, avoids the problem that traditional screw connection is difficult to separate because of CVD product coating adhesion, and is convenient to dismount.

The utility model discloses a kind of tablet number grain filling devices, belong to pharmaceutical equipment technical field, driving mechanism is installed on tray, the output end of driving mechanism is connected with measuring disc through tray axis, tray is obliquely set on base by supporting mechanism, a plurality of tablet discharge ports are provided on measuring disc, a plurality of circumferential array arranged medicine containing area are provided on measuring disc, the position of medicine containing area corresponds with tablet discharge port position, scraper is connected with tray by bunker fixing block, scraper is attached to measuring disc, barrel-shaped bunker is provided on tray. The present application adopts obliquely set tray and matched measuring disc, scraper, can accurately control tablet quantity, improve production accuracy. Dust suction port and broken tablet discharge port can clean impurities and broken tablets in time, ensure medicine quality. Driving mechanism stably provides power, ensure that device continues to operate.

The utility model relates to a needling machine technical field especially, more particularly to a needle -pricking machine of convenient loading and unloading needle, its technical scheme includes base, waste groove, fender and electric telescopic handle, the top front of base is fixedly installed with second side plate, and the top back of base is fixedly installed with first side plate, the top of first side plate and second side plate is fixedly installed with top plate, the top of base is fixedly installed with waste groove, the left side and the right side of base are fixedly installed with fender, the utility model discloses the inside installation of magnet in the protective curtain, through the mutual exertion of magnetic force between magnet and magnetite, make protective curtain close or far from the movement of mounting bracket, further make protective curtain swing frequently on the side of mounting bracket, and contact with the cloth surface transmission of driving roll, make cloth before needle -pricking processing and after needle -pricking processing, can remove the residue attached to cloth surface to guarantee the quality of device for cloth needle -pricking processing.

This utility model discloses a bag-folding mechanism for a bag-opening machine, including a worktable with a positioning window. An upper folding knife assembly and a lower folding knife assembly are correspondingly arranged above and below the positioning window. The upper folding knife assembly includes a lifting and lowering fixed plate, upper left and upper right folding knives mounted on the fixed plate, and front and rear folding knives arranged horizontally. The lower folding knife assembly includes a lifting and lowering mounting plate and lower left and lower right folding knives arranged horizontally on the mounting plate. The upper folding knife assembly descends into the cut bag opening. The front and rear folding knives move back and forth to fold the front and rear edges of the bag opening. The upper left and upper right folding knives descend synchronously with the fixed plate to fold the left and right edges of the bag opening downwards. Then, the lower left and lower right folding knives of the lower folding knife assembly move horizontally left and right to further fold the downward-folded left and right edges and press and shape the folded edges, ensuring the quality of subsequent bag opening sewing.

This utility model relates to the field of road and bridge construction technology, and in particular to a fixing structure for repairing road and bridge cracks. It includes a cylinder and a road surface. A crack groove is provided at the crack in the road surface for placing the cylinder. A top groove is formed above the crack groove. A vertically placed support is slidably installed inside the cylinder. A waterproof plate is fixedly connected to the top of the support after it slides through the cylinder. An inner cavity is formed at the top of the cylinder. Connecting rods are rotatably connected to both sides of a section of the support located in the inner cavity. A pull rod is rotatably connected to the end of the connecting rod away from the support. A fixing rod is provided at the end of the pull rod away from the connecting rod. This application improves construction efficiency and reduces difficulty through convenient adjustment of the fixing structure. Furthermore, the design of barbs and waterproof grooves enhances structural stability and waterproof performance. The mechanical structure under stress also prevents further cracking, ensuring the quality of the repair work in terms of construction efficiency and long-term stability of the repair effect.

The invention provides a grouting device and a gypsum board production system. The grouting device comprises a first grouting pipe and a second grouting pipe, wherein the first grouting pipe is connected to the slurry mixing machine and is suitable for applying first slurry; the grouting device comprises a first grouting pipe and a second grouting pipe, the second grouting pipe is arranged on the downstream portion of the first grouting pipe and connected to a slurry mixing machine so as to be suitable for applying second slurry to the first slurry, and the grouting device is configured to reduce or eliminate the scouring effect between the second slurry and the first slurry. According to the grouting device disclosed by the invention, on the basis of the principle of forming a shoe washing phenomenon, the scouring effect on the first slurry in the second slurry injection process is effectively reduced or eliminated by improving the structure of the grouting device, and a solution which is easy to implement, reliable and effective is provided under the condition that raw materials are not changed; and the performance quality and the appearance quality of a gypsum board product are ensured.

The utility model discloses a kind of phosphogypsum interlocking module wall structure, belong to phosphogypsum wall body technical field, including locating frame, the locating frame is provided with two, two locating frames are set from top to bottom;The utility model sets scrape flat subassembly, operator inserts finger part into arc-shaped groove inside, then forces drives mounting plate to move up, mounting plate moves up and drives second magnetic ring to move up and separate from first magnetic ring, when mounting plate is away from placing groove, then it is extracted from the plug-in hole inside and is inserted into column, after subsequent first layer phosphogypsum mortar screed layer and second layer phosphogypsum mortar screed layer are poured and are completed, operator is again hand-held mounting plate and drives scraper to move and carries out scraping operation to first layer phosphogypsum mortar screed layer and second layer phosphogypsum mortar screed layer surface, guarantee the flatness of first layer phosphogypsum mortar screed layer and second layer phosphogypsum mortar screed layer surface, and then the quality of phosphogypsum composite wall after pouring can be guaranteed.

The application discloses a traditional Chinese medicine pill combining and piling device and belongs to the technical field of traditional Chinese medicine processing equipment. The traditional Chinese medicine pill combining and piling device is characterized in that a liquid injection assembly is located above a material containing assembly, and the lower end of a stirring assembly extends into the material containing assembly; the material containing assembly comprises a stirring pot and a first servo motor, and the stirring pot is rotationally connected with the first servo motor; the stirring assembly comprises a second servo motor, a torque sensor and a stirring paddle, the second servo motor is arranged in a frame body, the torque sensor is connected with the output shaft of the second servo motor, the stirring paddle is connected at one end of the torque sensor away from the second servo motor, and the other end of the stirring paddle away from the torque sensor is located in the stirring pot; the liquid injection assembly comprises a liquid injection pump and a liquid outlet pipe, one end of the liquid outlet pipe is connected with the liquid injection pump, and the other end of the liquid outlet pipe is located above the stirring pot. In the stirring process, not only can raw materials be added in batches, but also the water adding amount can be automatically adjusted according to the viscosity of mixed powder, so that the pill making is ensured to be successful.

The application provides a sound insulation and heat preservation integrated prefabricated laminated board and a laminated board system, and belongs to the field of fabricated buildings. The laminated board comprises a prefabricated part, a heat insulation and sound insulation layer and a laminated layer. The prefabricated part comprises a prefabricated bottom plate and a connecting piece, the connecting piece is arranged on the prefabricated bottom plate, the heat insulation and sound insulation layer is continuously formed on the prefabricated bottom plate, the laminated layer is formed on the heat insulation and sound insulation layer, the connecting piece penetrates through the heat insulation and sound insulation layer, the bottom of the connecting piece is connected to the prefabricated bottom plate, the top of the connecting piece extends into the laminated layer, a first protective layer is formed between the top of the connecting piece and the top surface of the laminated layer, and a second protective layer is formed between the bottom of the connecting piece and the bottom surface of the prefabricated bottom plate. The heat insulation and sound insulation layer is arranged in the middle of the laminated board, a sandwich form is formed, a complete and continuous heat insulation and sound insulation layer is formed in the laminated board, and floor surface layer cracking caused by on-site laying of the heat insulation and sound insulation layer can be effectively avoided.

The utility model provides a kind of electromagnetic heating vulcanization device for making solid tire belongs to tire production technology and equipment field.It includes two outer mould cover, two outer mould cover are disconnected between by intermediate heating plate, and the side of two outer mould cover away from intermediate heating plate is equipped with upper heating plate and lower heating plate, the upper heating plate, lower heating plate and intermediate heating plate inside are equipped with electromagnetic heating coil assembly, the side of the mould cavity in outer mould cover is also equipped with several electromagnetic heating coil assembly, two sets of outer mould cover share an intermediate heating plate, intermediate heating plate is equivalent to the lower heating plate of upper outer mould cover, and equivalent to the upper heating plate of lower outer mould cover, compared with traditional each outer mould cover needs upper and lower heating plate, when working, the energy consumed by the unit work of one heating plate can be saved.

The utility model relates to the related technical field of half head structure of hosiery machine, disclose a kind of automatic hosiery machine half head device, the utility model includes half head component, it is equipped with half head steel ring, half head main part, half head tool rest, short distance needle in half head component from bottom to top sequentially;The half head main part with the half head steel ring is connected by countersunk screw.The utility model can reach the purpose of satisfying the most basic yarn winding by the setting of half head steel ring, half head main part, half head tool rest, short distance needle, and the purpose of changing the angle of yarn winding is achieved by changing the bending mode of short distance needle, the smoothness of knitting process is improved, the yarn winding is more stable, the length of cutting is more reliable, the efficiency and quality of entire knitting are guaranteed.

This application provides a method for adding watermarks to an image. Belonging to the field of information security, this method involves dividing an image into blocks to obtain a target number of non-overlapping blocks. The texture complexity is determined based on the number of pixels at the block boundaries and the size of the blocks. The watermark embedding amount is determined based on the texture complexity of each block, the average watermark embedding capacity, and the initial texture complexity. The average watermark embedding capacity is determined based on the total watermark information capacity and the target number. Singular value decomposition is performed on each block to obtain the maximum singular value. The singular value after watermark embedding is determined based on the maximum singular value of each block and the watermark information corresponding to the watermark embedding amount. Inverse singular value decomposition is performed on the singular values ​​after watermark embedding in each block, and each block after watermark embedding is reconstructed to obtain a watermarked image. This method can improve the amount of watermark information and the quality of the watermarked image.

The application discloses a marine product inspection digital application system and method based on a lightweight database and a configurable interface, an electronic device and a medium. The method can include: an enterprise user runs a client, initiates enterprise authentication to a CA authentication; after the client is authenticated, the enterprise's product basic data, inspection item list and corresponding data dictionary configuration are automatically obtained from the server end; the enterprise user applies for product inspection on the client; the client automatically assembles the locally stored structured data into a message conforming to the interface specification according to the data dictionary configuration, and submits it to the server through the CA authentication channel; after the inspection is completed on the server, the product certificate is sent to the client of the enterprise and stored locally. The application integrates a lightweight database, a configurable interface and a secure authentication mechanism, realizes seamless connection of enterprise and classification society data, guarantees data quality and safety, and implements marine product inspection digital specification.

The present application relates to the technical field of GPU computing optimization, and in particular to a sparse attention computing method, device and medium for GPU, wherein the method realizes the high efficiency of long context reasoning through the geometric perception sparse attention framework of ball hashing, and combines a large-scale parallel hashing optimization algorithm and a load adaptive computing kernel. Compared with the existing sparse attention methods based on heuristics or gradient learning, the present application realizes higher retrieval recall rate, lower preprocessing overhead and efficient hardware adaptation to irregular sparse patterns.

The application relates to the technical field of sewage treatment, and discloses a sewage treatment ecological box based on Myriophyllum verticillatum, which comprises a container body, the inner cavity right side of the container body is sequentially provided with a first treatment box, a second treatment box and a third treatment box from top to bottom, further comprises a circulating assembly arranged between the first treatment box, the second treatment box and the third treatment box, an algae removing assembly arranged on the front and back end faces of the first treatment box, the second treatment box and the third treatment box, and a fertilization assembly. The sewage can be sequentially injected into the first treatment box, the second treatment box and the third treatment box through the arrangement of the circulating assembly, and the Myriophyllum verticillatum is planted in the first treatment box, the second treatment box and the third treatment box, so that the organic matter in the sewage can be absorbed, the function of treating the sewage is realized, the algae removing assembly and the fertilization assembly are arranged, the growth of the Myriophyllum verticillatum can be ensured, and the sewage can be efficiently purified and treated.

The application provides an aging tool for a plasma surgical device, wherein a multi-channel temperature sampling interface is connected with a plurality of temperature measuring components, the temperature measuring components measure temperature values of specified positions of the plasma surgical device; a microcontroller is connected with a foot control interface, a load interface and the multi-channel temperature sampling interface, wherein the microcontroller controls the start and stop of cutting and / or coagulation of the plasma surgical device through the foot control interface; the microcontroller controls power output through the load interface; the microcontroller obtains the temperature values measured by the temperature measuring components through the multi-channel temperature sampling interface, judges whether there is an over-temperature safety risk in the aging test according to whether the temperature values exceed a set threshold, and issues an alarm prompt. The application can realize automatic testing and real-time monitoring of the temperature of key positions, is beneficial to the analysis of bad temperature data, and effectively guarantees the quality of the device.