82results about How to "Realize the load" patented technology

The invention discloses an SM4 encryption method based on an FPGA, and relates to the technical field of data encryption, and the method comprises the steps: obtaining to-be-encrypted plaintext data; a plurality of SM4 encryption cores are configured on the FPGA chip to perform parallel encryption operation on plaintext data to be encrypted; wherein each SM4 encryption core adopts a pipeline architecture, and the pipeline architecture comprises an access device, a round function arithmetic unit and a key adder; an extraction circuit based on physical noise and integrated on the FPGA chip is utilized to generate N-bit random numbers as encryption keys of each SM4 encryption core; handshake signals are collected to calculate the operation efficiency of each SM4 encryption core; adjusting FPGA resource allocation among the SM4 encryption cores by adopting a priority scheduling algorithm according to the operation efficiency; in the encryption operation process, power consumption equalization is carried out by adopting polynomial and logical operation hybrid calculation, and time sequence randomization is carried out by adopting a random waiting period. Aiming at the problem of weak anti-difference sensitivity in the prior art, the side channel attack resistance is improved.

The invention provides an on-site rapid calibration combined device and method for a multi-dimensional force sensor, and the device comprises a workbench and a top plate, the top of the workbench and the bottom of the top plate are provided with connecting assemblies, the connecting assemblies are connected with standard force sensors, the standard force sensors are connected with steel wire ropes, and the two steel wire ropes are jointly connected with a loading assembly. When the tail end of the tested industrial robot moves in the X-axis direction or the Y-axis direction or the tail end of the tested industrial robot rotates, an included angle exists between the loaded steel wire rope and the steel wire rope before loading, and the device further comprises an angle recognition assembly. Through movement of the tail end of the tested industrial robot, loading and calibration of a multi-dimensional force sensor of the tested industrial robot are realized. Compared with an existing multi-dimensional force sensor calibration device, the device has the advantages that the multi-dimensional force sensor does not need to be dismounted from the tested industrial robot, and artificial installation errors are prevented from being introduced. Moreover, the calibration work of the multi-dimensional force sensor is simplified, and the influence on industrial production is reduced.

The invention discloses an electric actuator detection device based on a hydraulic braking principle and a test method thereof. The electric actuator detection device based on the hydraulic braking principle comprises a test bench, a hydraulic braking mechanism, a data acquisition mechanism and a control system. According to the electric actuator detection device based on the hydraulic braking principle, a relation model of dynamic and static action torques of an electric actuator is established through a control system, a complete quantity value tracing chain of multiple parameters of the electric actuator under actual working conditions is established, a recheck detection method outline of a nuclear-grade electric actuator is established, the off-line detection technology of the electric actuator is mastered, and the detection efficiency of the electric actuator is improved. And basic data is provided for online diagnosis of the valve. And full-parameter detection of the electric actuator can be realized through the data acquisition mechanism. Meanwhile, detection of various parameters of the electric actuator under actual working conditions can be simulated. Meanwhile, by means of a hydraulic braking mode, automatic continuous linear adjustment of the load and the load protection function can be achieved, and the load response sensitivity and the valve load simulation performance are improved.

The invention belongs to the technical field of micro-nano, and particularly relates to a drug-loaded microalgae motor and a preparation method and application thereof, and the drug-loaded microalgae motor comprises a polydopamine / ferroferric oxide / chlamydomonas reinhardtii micromotor and a drug loaded on the polydopamine / ferroferric oxide / chlamydomonas reinhardtii micromotor, the drug is combined with catechol groups on the surface of polydopamine in the polydopamine / ferroferric oxide / chlamydomonas reinhardtii micromotor through covalent bonds; the medicine is an anti-cancer medicine or an anti-inflammatory medicine. The microalgae motor has the characteristics of simple preparation method, good material biocompatibility, high biodegradability and the like. The polydopamine / ferroferric oxide / chlamydomonas reinhardtii drug-loaded micromotor prepared by the invention has the characteristic of self-driving in intestinal juice, so that the polydopamine / ferroferric oxide / chlamydomonas reinhardtii drug-loaded micromotor can target an intestinal disease part under the guidance of an external magnetic field to improve the treatment effect and reduce the side effect of a drug, thereby expanding the application space of a micro-nano motor in the field of biomedicine.

The invention provides a seawater soaking wound hydrogel dressing and a preparation method thereof, a drug-loaded nano system 4OI (at) ZIF-8 (at) PAD with a core-shell structure is constructed, an anti-inflammatory drug 4-octyl itaconic acid and zinc ions are jointly encapsulated in a ZIF-8 framework, and a polydopamine coating is wrapped, so that synergistic loading and controllable release of the drug and metal ions are realized. According to the dressing, dopamine modified hyaluronic acid is used as a matrix, a temperature-sensitive material and an enzyme catalysis cross-linking system are combined, stable gel can be rapidly formed in situ within 5 seconds, and the dressing has excellent tissue adhesion performance (the adhesion strength reaches 6.7 kPa). Experiments prove that the hydrogel dressing has the characteristics of broad-spectrum antibiosis, inflammation regulation and control and long-acting release. Animal experiments prove that the healing rate of seawater soaking wounds treated by the dressing on the twelfth day is as high as 95.7% and is remarkably superior to that of a commercial silver ion gel control group, scars are less after healing, and an efficient, safe and easy-to-implement scheme is provided for marine environment wound nursing.

The invention discloses a global neural drawing method and system oriented to hybrid representation optimization, and belongs to the technical field of computer graphics, and the method comprises the steps: dividing a screen into a plurality of tiles, and obtaining a first workload index on each tile in a first drawing stage and a second workload index on each tile in a second drawing stage; generating a cross-tile and cross-stage unified scheduling queue based on the first workload index and the second workload index, and executing the drawing tasks on different tiles in parallel according to the unified scheduling queue; and triggering a subsequent feature fusion and neural global illumination drawing stage when the inter-stage dependency condition is met so as to generate an output image with a global illumination effect. According to the method, the end-to-end frame rate oriented to the modern AI accelerator / AI-GPU can be remarkably improved and the tail delay can be reduced on the premise of ensuring the visual quality and the time sequence stability, and the method is suitable for application scenes such as real-time global illumination, large-scale complex scene drawing and interactive neural rendering.

The present invention relates to a foldable continuous body flight operation mechanical arm based on the origami principle, comprising: an origami main body mechanism, comprising a plurality of origami modules connected in series, the origami module comprising a bottom plate and at least one foldable origami component, the bottom plate being provided with a main wire hole and at least one group of through holes; the origami component being provided with a plurality of hinged parts, and the hinged parts being provided with a hollow shaft; a wire driving mechanism, comprising a driving module and a wire unit, the wire unit comprising a main wire and a secondary wire, the main wire passing through the main wire hole and connected to the driving module, the secondary wire passing through the through hole and fixedly connected to the main wire, when the driving module reels or unwinds the main wire, the origami component is controlled to be extended and retracted; a self-locking mechanism, arranged on the origami component; the self-locking mechanism comprising at least one self-locking module, the self-locking module comprising a two-way SMA rod connecting shaft body arranged in the hollow shaft, the two-way SMA rod connecting shaft body being powered on / off to lock or unlock the origami component. The present invention realizes precise angle control of each origami module and the overall mechanism.

The invention relates to the technical field of road asphalt modification, in particular to an asphalt modifier containing polyethylene and an asphalt mixture prepared from the asphalt modifier. The asphalt modifier containing polyethylene comprises the following components in parts by weight: 8-15 parts of matrix asphalt, 30-50 parts of coal liquefied asphalt, 30-50 parts of pretreated rubber powder, 1-4 parts of a solubilizer, 1-4 parts of a plasticizer and 2-4 parts of waste polyethylene plastic. The asphalt modifier containing polyethylene also comprises a component A: 0.3-3.0 parts by weight of modified basalt fiber. The asphalt modifier containing polyethylene is prepared through a mixing technology, compared with a traditional modifier, basic raw materials of the asphalt modifier are completely derived from solid waste resources, resource utilization of waste is achieved, and the preparation process is simplified.

A high-speed roller screw testing device comprises a lathe bed, a power assembly for providing power for a roller screw is arranged on the lathe bed, the end portion of the roller screw is connected with a screw nut, the end portion of the screw nut is connected with a loading mechanism for providing load for the roller screw, and a connecting mechanism is arranged between the roller screw and the loading mechanism. The power assembly comprises a power motor and a diaphragm coupling arranged on a roller screw. Compared with the prior art, the brake and the loading roller screw in the loading mechanism are used for providing load for the roller screw, and the pneumatic control system is used for adjusting the air pressure of the brake, so that the accurate control of the loading torque is realized, the roller screw realizes passive loading, the response speed is high, and the loading precision is high. According to the utility model, positive and negative rotation loading force loading of the roller screw can be rapidly realized, and meanwhile, the diaphragm coupling can provide gapless transmission and is gapless and impact-free during reverse loading, so that continuous positive and negative rotation testing is realized, the testing efficiency is improved, and the labor cost is reduced.

The invention relates to the technical field of big data, and discloses a heterogeneous data source online data exchange method, device and equipment and a medium, the method comprises the following steps: mapping to-be-exchanged data of a data table in a source database into a general data type conforming to a target database; according to the structure of a target table in the target database, a backup table is newly built, and the structure of the backup table is the same as that of the target table; copying the to-be-exchanged data to the standby table according to the general data type; and performing partition exchange on the standby table and the target table so as to load data in the standby table into the target table. According to the method, the to-be-exchanged data is copied into the standby table, the loading process does not influence external services of the target database, and the standby table does not need actions such as index checking, so that the data loading efficiency can be improved; in addition, the application target database can be switched on the second level, and the pain point caused by batch data exchange can be solved.

The invention provides a control subdivision method and device for a distribution transformer heat flow coupling model grid, and the method comprises the steps: building a distribution transformer heat flow coupling numerical model, dividing grid nodes, carrying out the construction of rectangular grid nodes for an inner oil duct of a winding, an oil way wrapping the winding, and a cooling fin oil duct, and carrying out the control subdivision of the distribution transformer heat flow coupling model grid. Any grid node construction is conducted on a winding structural part and an oil tank main oil way, rectangular grid mapping subdivision is conducted on rectangular grid nodes, any grid mapping subdivision is conducted on any grid node, the size of the rectangular grid mapping subdivision is smaller than the size of any grid mapping subdivision, a heat source is applied to a winding, and the winding structure is obtained. And obtaining the winding temperature based on the distribution transformer heat flow coupling numerical model, and increasing rectangular grid nodes until the winding temperature meets the precision requirement to obtain the temperature distribution characteristic of the winding. According to the method, the overall grid quality of the winding can be improved, the number of grids is reduced under the condition that the temperature rise characteristic solving precision of the winding is guaranteed, the grid quality is improved, and the universality is high.

The present invention relates to the technical field of photocatalyst materials, and specifically discloses a palladium single-atom catalyst and a preparation method and application thereof. The catalyst preparation method comprises the following steps: S1, reacting tetrakis(4-carboxyphenyl)porphine in a weakly acidic environment, self-assembling to form a nanosheet material, and obtaining a precursor X; S2, reacting the precursor X and palladium acetate in a solvent, and obtaining a palladium single-atom catalyst after centrifugation, washing and drying. The carboxyl groups on the surface of the nanosheet material capture Pd ions, and Pd 2+ The H + The carboxylate ion and the replaced H + The combination forms acetic acid, and according to the principle of strong acid to weak acid, the reaction is irreversible, forming Pd single atoms, thereby achieving the loading of Pd single atoms. The palladium single atom catalyst provided by the present invention has higher dispersibility and 100% atomic utilization, so that the catalyst can achieve better catalytic effect at a lower Pd loading.

The invention provides thixotropic small-molecule gel as well as a preparation method and application thereof, and belongs to the technical field of gel drug carriers. The micromolecular gel provided by the invention is formed by self-assembly of a gelator in a solvent. The used gelator is an amphiphilic small molecule composed of a dipeptide sequence with an aromatic ring structure and a hydrophobic alkyl chain. The micromolecular gel formed by the gelator has thixotropic property, the recovery rate of the micromolecular gel can reach 96% at most, and the minimum gelator concentration required for forming stable gel is not higher than 0.2%. Meanwhile, the gel can be used as an injectable gel carrier of an anti-cancer drug, and the pH stimulation response controllable slow release of the anti-cancer drug is realized.

The invention discloses a lightweight embedded implementation mechanism of a Rogowski coil inter-phase interference compensation MFNN method, and the mechanism comprises the steps: training an MFNN model, and achieving the Rogowski coil inter-phase interference compensation; floating-point number parameters of the MFNN model are lightened, and memory occupation and calculation amount of the model are reduced; reproducing an MFNN model structure by using a C language and realizing parameter loading, and reproducing an inference result of the MFNN model under the Pytorch framework; mFNN model reasoning based on the C language is optimized through parallel computing; and deploying a C language-based parallel computing MFNN model in an edge computing environment to realize the real-time compensation of the inter-phase interference of the Rogowski coil.

The invention relates to a diagonal holder for an OLED (Organic Light Emitting Diode) metal mask. The technical purpose of the present invention is characterized in that diagonal grippers are attached to four corner edge portions of a stretching welder having side grippers for four-side stretching of long side portions and short side portions, so that the four corner edge portions of a substrate mask are stretched along diagonal lines. As a result, not only can the flatness alignment of a large-area substrate mask (eighth generation) be precisely adjusted (improved in precision), but also the sag amount of the substrate mask can be minimized, the warpage between the substrate mask and a mask frame can be minimized, the performance can be stabilized, and the matching tensile force for pattern units of various specifications can be flexibly and variably applied.

Embodiments of the present disclosure provide a page resource preloading method and device, electronic equipment and storage medium, by obtaining initial loading information for a program page, the initial loading information is used to represent at least two preloading resources of the program page; the initial loading information is processed according to the device running information to obtain the optimized loading information, wherein the device running information represents the real-time network state and / or device performance of the terminal device, and the optimized loading information is used to represent the loading order of at least one target resource; based on the optimized loading information, the target resource of the program page is preloaded. By correcting the initial loading information after obtaining the initial loading information, for example, the device running information, the optimized loading information representing more accurate target resources and corresponding loading order is obtained, the preloading accuracy of the page resource is improved, the utilization efficiency of network resources and computing resources is improved, and the smoothness of page content display is improved.

The invention discloses composite hydrogel containing azelaic acid and a preparation method of the composite hydrogel, and belongs to the technical field of skin medicines.The azelaic acid is loaded and free azelaic acid is fixed through a layered structure of Ca / LDH powder, and then polymerization modification is conducted through dodecyl methacrylate, so that the composite hydrogel can be firmly smeared on the skin and is prevented from being scoured by sweat, and the skin care effect is good. Moreover, the Ca / LDH powder has an ion exchange characteristic between layers, so that a slow release effect on azelaic acid can be achieved; encapsulated menthol exists in the composite hydrogel containing azelaic acid, the encapsulated menthol is used for clathrating menthol through the clathration of a chitosan / cyclodextrin encapsulation carrier, and after clathration of the chitosan / cyclodextrin encapsulation carrier, a compact crystal structure of the carrier and the cavity clathration of cyclodextrin form a double barrier, so that the composite hydrogel containing azelaic acid has a good barrier effect. Contact between menthol and outside air and temperature is isolated, and volatilization loss of menthol is greatly reduced.

The present invention belongs to the field of electronics and geographic information systems, and specifically relates to an elevation digital map application method under a ZYNQ platform, comprising the following steps: step one: a host computer reads an original elevation map data file through a GDAL library; and parses the original elevation map data file to obtain an elevation digital map binary file; step two: the host computer loads a map parsing program into a FLASH memory on the ZYNQ platform; step three: the host computer loads the elevation digital map binary file into an EMMC memory on the ZYNQ platform; step four: the ZYNQ platform runs a map parsing program to read and parse the elevation digital map binary file.

The present application discloses a distribution network load prediction method and system based on multi-source information fusion, which obtains the human environment information and power regulation information of a future set time period in a region to be predicted, and divides the future set time period into a number of time units according to a preset minimum time unit, and then determines the human environment information and power regulation information corresponding to each time unit, and inputs the human environment information and power regulation information corresponding to each time unit into a prediction model created in advance based on historical load data, historical human environment information and historical power regulation information, so as to obtain the predicted load data corresponding to each time unit, and use the predicted load data corresponding to each time unit to merge and obtain the predicted load data in the future time period of the region to be predicted, thereby realizing the prediction of the power grid load in the region to be predicted.

The application discloses a kind of distributed complex event processing systems using super heuristic algorithm, belong to distributed computer system technical field.The system includes cluster control component, distributed database, message middleware, event collection and analysis middleware, event distribution middleware and CEP processing node.It is in at core, by event collection and analysis middleware call super heuristic algorithm, CEP rule and historical data are trained, and optimal event fragment division method and Gower distance model based on attribute weight are automatically obtained;At runtime, event distribution middleware is based on the distance model to calculate the similarity of new event and existing partition, and in combination with the real-time load state of CEP processing node, dynamic, reasonable load distribution and balance are realized.The application realizes the intelligent adaptation and zero business invasion of CEP processing distribution, significantly improves the adaptability, universality and resource utilization of system in dynamic scene.

The invention discloses a solar water evaporation adsorption material as well as a preparation method and application thereof, and belongs to the technical field of wastewater treatment. Stirring and reacting the polydopamine modified zeolite imidazate framework material with the pre-oxidized nano cellulose solution and the polyvinyl alcohol solution to form a viscous liquid, transferring the viscous liquid into a mold, and sequentially performing standing and bubble removal, freeze forming and freeze drying to obtain the polydopamine modified zeolite imidazate framework material. The solar water evaporation adsorption material is formed by a zeolite imidazate framework material which is formed by the pre-oxidized nanocellulose and the polyvinyl alcohol and is modified by loading polydopamine on a dual-network structure. The composite material has the characteristic of high stability, is endowed with a photo-thermal conversion function and rare earth ion adsorption activity at the same time, can promote water evaporation and accelerate mass transfer of rare earth ions in an aqueous solution and combination of adsorption active sites by utilizing solar radiation so as to accelerate adsorption kinetics of the rare earth ions, and can be used for rare earth wastewater treatment. The method is especially suitable for low-concentration rare earth wastewater treatment.

The invention discloses a fully automatic slide-pushing and staining machine capable of continuously feeding samples and used for preparing blood smears, comprising a machine body frame, a sample glass slide, a glass slide loading and turning device, a sampling and liquid circuit supporting device, a slide-pushing and drying device, a staining and liquid circuit supporting device, a sample-discharging connecting bridge device, a control circuit and an information processing device, and a display device; the slide-pushing and turning device is slidably connected with the sample glass slide, the sampling and liquid circuit supporting device cooperates with the slide-pushing and turning device, the slide-pushing and drying device cooperates with the sampling and liquid circuit supporting device, the staining and liquid circuit supporting device cooperates with the slide-pushing and drying device, the sample-discharging connecting bridge device cooperates with the staining and liquid circuit supporting device, the control circuit and the information processing device receive detection signals and send operation signals, the display device controls the control circuit and the information processing device, and can realize fully automatic sampling, sample dropping, slide-pushing, staining and liquid circuit cleaning actions, so that the blood smear preparation efficiency is higher.

The utility model relates to the technical field of vibration resistance detection of automatic gearbox oil, in particular to a universal axial power transmission mechanism and a low-speed friction testing machine. The transmission mechanism comprises a base, a universal joint and an oil containing seat; the bottom side of the base is mounted on the driving cylinder, a frustum hole is formed in the top side of the base, and a steel ball is mounted in the center of the frustum hole; the universal joint is installed in the frustum hole, the outer contour of the universal joint is in a frustum shape, a set gap is formed between the outer contour of the universal joint and the frustum hole, and the bottom of the universal joint is connected to the steel ball in a pressed mode. A lower sample is arranged in the oil containing seat, an axially fixed upper sample is arranged at the top of the oil containing seat, a torque sensor is arranged between the oil containing seat and the universal joint, one end of the torque sensor is connected with the oil containing seat, and the other end of the torque sensor is connected with the universal joint. According to the utility model, the upper sample and the lower sample can be in parallel contact, the axial load is effectively transmitted, and accurate torque measurement is carried out.

The invention discloses a reliability test device for a three-dimensional translation one-dimensional rotation four-degree-of-freedom robot, which overcomes the problem of no test device, and comprises a support system, a chuck, a loading detection system and an operation table, the loading detection system comprises a loading position detection system and a rotation angle detection system, wherein the loading position detection system is composed of a sliding sleeve and three sets of rope control devices. The operation table is placed on the right side of the supporting system. The chuck is located above the bottom plate in the supporting system, the top end of the chuck clamps the bottom end of the tested robot through a clamping jaw, the top end of the tested robot is fixed to the top end of the supporting system, the bottom end of the chuck is inserted into the sliding sleeve through a chuck rotating shaft, one ends of the three rope control devices are fixed to the sliding sleeve through ropes, and the other ends of the three rope control devices are arranged on the bottom plate. The upper end of the rotation angle detection system is connected with a chuck rotating shaft in the chuck; the lower end of the rotation angle detection system is fixed to an angle sensor support of the supporting system through an angle sensor. And the operating platform is in line connection with the loading detection system.

The utility model relates to a kind of charging box, charging box assembly and unmanned aerial vehicle system, including box, first electric connector, second electric connector and third electric connector are provided on the box;The first electric connector is used to be electrically connected to commercial power;The second electric connector is used to be electrically connected battery, the second electric connector is electrically connected to the first electric connector, to allow the commercial power to charge the battery through the box;The third electric connector is used to be electrically connected load, the third electric connector is electrically connected to the second electric connector, to allow the battery to power the load through the box, the first electric connector is electrically connected to the third electric connector, to allow the commercial power to power the load through the box.

The invention discloses a B-axis power tool rest test bench with both performance testing and cutting functions, and relates to the field of tool rest experiment devices. Comprising a workbench, a first hard rail sliding table, a second hard rail sliding table, a third hard rail sliding table, a B-axis power tool rest, a simulation tool holder, a radial force loading assembly, an axial force loading assembly, a dynamometer assembly, a performance detection assembly and a workpiece clamping assembly, the second hard rail sliding table and the third hard rail sliding table are arranged on the left side and the right side of the workbench respectively, the workpiece clamping assembly is fixedly connected to the third hard rail sliding table, the B-axis power tool rest is fixedly connected to the first hard rail sliding table, and the axial force loading assembly and the dynamometer assembly are coaxially combined and installed and then fixedly connected to the second hard rail sliding table. The radial force loading assembly and the performance detection assembly are both installed on the workbench. The device is compact in structure and reasonable in layout, and integrates multi-dimensional force loading, performance detection and real cutting functions.

The present invention provides a multi-site ozone catalyst and a preparation method and application thereof, which belongs to the technical field of sewage treatment. The multi-site ozone catalyst preparation method comprises: adding a carbon-nitrogen precursor to water, and oxygenating the precursor through hydrothermal treatment to obtain an oxygen-doped precursor; then mixing the oxygen-doped precursor with a transition metal salt in an organic solvent, so that the transition metal salt is distributed on the surface of the oxygen-doped precursor to obtain a catalyst precursor; finally, calcining the catalyst precursor twice to form transition metal sites, nitrogen sites and oxygen sites on the surface of the catalyst precursor to obtain a multi-site ozone catalyst. Wherein, the nitrogen site is pyrrole nitrogen and / or pyridine nitrogen, the oxygen site is hydroxyl oxygen, and the transition metal site is a transition metal atom.

The application discloses a kind of monitoring process dynamic loading method, device, equipment and storage medium, it is related to server technical field, the method comprises: starting baseboard management controller, and using preset drive code in the kernel of the baseboard management controller Whether there is in situ device currently is detected, if there is, it is determined that the in situ device is in connection state by the kernel and generates corresponding hot plug event;If the kernel generates the hot plug event is monitored, the initialization after device information of the in situ device is acquired;Corresponding monitoring management process of the in situ device is determined, and the monitoring management process is started using the initialization after device information, so as to use the in situ device to be monitored using the monitoring management process.It can be seen that the application dynamically discovers device by drive code, starts corresponding monitoring management process to the discovered device, and no longer depends on configuration file to start corresponding monitoring management process.

The utility model discloses a rolling bearing fatigue life test device which comprises a computer and an operation table, a long shaft and a short shaft which are coaxial are arranged above the operation table, one end of the short shaft is connected with one end of the short shaft through a connecting shaft assembly, and the other end of the short shaft is provided with a driving mechanism. The long shaft is sleeved with a bearing seat used for fixing the rolling bearing and a radial load applying mechanism used for applying radial load to the bearing at the end, and an axial load applying mechanism used for applying axial load to the bearing at the left end is installed at the end of the operation table. A data acquisition assembly which is used for acquiring bearing data and is electrically connected with a computer is mounted on the bearing seat; and a torque meter which is used for monitoring a displacement signal of the rolling bearing and is electrically connected with the computer is mounted on the short shaft. According to the utility model, the loading of radial and axial variable loads on the rolling bearing can be realized, the automation degree is higher, and the problem that the performance test of the rolling bearing under the loading of variable loads cannot be carried out by the existing bearing test device is solved.

The invention discloses a campus report generation optimization system based on data hierarchical caching and parallel computing, and relates to the technical field of big data processing. The campus report generation optimization system based on data hierarchical caching and parallel computing comprises a data acquisition and preprocessing module used for acquiring report original data and performing normalization processing and partition fragmentation; the data hierarchical cache and storage module is used for constructing a three-level hierarchical cache architecture and performing cache heat assessment; the parallel computing and dynamic load balancing module is used for optimizing resource allocation and adjusting load balancing in real time; and the dynamic tilt processing and adjusting module is used for adopting stratified sampling and identifying a tilt key, carrying out integration verification to generate a report and storing the report in a cache layer. According to the method, the efficiency and stability of campus report generation are effectively improved, and the problems that part of tasks become bottlenecks and overall report generation is slowed down due to data skew in distributed calculation are solved.