64results about How to "Reduce fragmentation" patented technology

The invention provides a shared memory-based data interaction method for an embedded virtualization platform, which comprises the following steps of: dividing a shared memory area, including a management information area and a shared data area, initializing the management information area, including setting a magic number, configuring a mutual exclusion access flag and recording use information of the shared data area; acquiring a physical initial address of the shared memory, verifying the availability of the management information area, and ensuring that the management information area is correctly initialized; a proper data transmission mode is selected according to the data size, small data volume can be directly transmitted through an inter-core communication register, and large data volume is transmitted through a shared memory; the Szymanski algorithm is used to realize mutual exclusion access control, and the consistency of data is ensured; after data interaction is finished, if shared memory resources which do not need to be used any more need to be released, use information in the management information area is updated; and other related operation areas or virtual machines are notified according to needs, and state changes of data interaction are notified to the operation areas or the virtual machines.

The invention discloses a gyrotron traveling wave tube low-speed scattered magnetic control injection electron gun and a design method, and belongs to the field of vacuum electronic devices. The electron gun comprises a cathode and an anode. The cathode comprises a cathode bottom table, a rear forming pole, an emission band and a front forming pole, the radius of the cathode bottom table is larger than that of the rear forming pole, the generatrix of the emission band is an arc curve, and the overall surface of the front forming pole is an arc surface; besides, in the design of the cathode, through two times of modeling and respective simulation optimization of partial parameters, the parameters in the one-time simulation optimization process are reduced, the optimization target is clearer, the design difficulty is effectively reduced, and the design time is shortened. The problem that the electric field of the gun area of the electron gun is too high due to the fact that the size of the cathode is too small is effectively solved, meanwhile, the adverse effect of the abrupt change structure of the cathode on the surface electric field of an emission band is avoided, and speed scattering of the electron gun is effectively reduced.

The invention relates to a memory management method and device, equipment and a medium, and the method comprises the steps: obtaining a memory application request sent by memory requester equipment for a target resource; analyzing the memory application request to obtain a to-be-applied first memory size; a target memory box of which the size range comprises a first memory size is determined from a plurality of memory boxes of different size ranges, the memory boxes are obtained by clustering memory blocks of each memory size specification, and each memory box comprises a preset number of memory blocks of which the memory sizes are within the size range corresponding to the memory box; a target memory block matched with the first memory size is determined in all memory blocks of the target memory box, and the memory size of the target memory block is larger than or equal to the first memory size; and in response to the memory application request, allocating the target memory block to a target resource of the memory requester device. According to the technical scheme, the fragmentation problem can be reduced, and the memory processing efficiency is improved.

The embodiment of the invention provides an archive management method and system based on big data analysis, and belongs to the technical field of data processing. The method comprises the steps of obtaining initial text data and initial image data corresponding to an initial user; performing deduplication processing on the initial text data to obtain target text data, and performing deduplication processing on the initial image data to obtain target image data; performing association relationship analysis on the target text data and the target image data to obtain a target relationship corresponding to the target text data and the target image data; performing text classification on the target text data to obtain a target type corresponding to the target text data; and performing data storage on the target text data and the target image data according to the target type and the target relationship to obtain a target storage result. The problems that in the prior art, the occupied storage space is increased and the data access and retrieval efficiency is reduced due to the fact that texts and images are often used as independent information units to be processed and an effective integration mechanism is lacked are solved.

The invention relates to a high-Fe-tolerance aluminum alloy for extrusion casting and a preparation method of the high-Fe-tolerance aluminum alloy, belongs to the technical field of aluminum alloy pressure casting, and solves the problems of low Fe content tolerance in aluminum alloy production, low use proportion of recycled aluminum, low toughness of aluminum alloy products, complex heat treatment process and long period in the prior art. The invention discloses a high-Fe-tolerance aluminum alloy for squeeze casting. The high-Fe-tolerance aluminum alloy comprises the following components in percentage by mass: 2-4% of Si, 1-2% of Mg, 0.5-1.0% of Fe, 0.01-1.5% of microalloy elements and the balance of Al, the microalloy element is one or a mixture of more of Sr, Cr, Mn and Zr. And green low-energy-consumption casting of the high-toughness aluminum alloy is achieved.

The invention relates to the technical field of network resource management, in particular to a multi-mode network resource block construction method and system, and the system comprises a physical resource layer which comprises a physical network and a physical network manager; the virtual resource layer virtualizes physical resources of the physical resource layer, acquires virtual resources, generates resource blocks and deploys and manages the resource blocks through a virtual resource manager, and the virtual resource manager interacts with the physical network manager; the application layer is used for processing a network request, sending a resource demand to the virtual resource layer according to the network request, and scheduling a resource block meeting the resource demand to process a service of the network request; and the request control layer is used for receiving a network request of a user, transmitting the network request to the application layer and acquiring an application service support network request. According to the scheme, the problems of separated management of resources such as calculation, storage and network, low resource scheduling efficiency and the like in the prior art can be solved.

The laser-induced sintering processing device comprises a rotary driving mechanism and a plurality of bearing tables, a feeding station and a processing station are arranged on the rotary path of the rotary driving mechanism, and a positioning conveying belt and a feeding carrying mechanism are arranged corresponding to the feeding station; the positioning conveying belt conveys battery pieces in the first direction, and a positioning device is arranged at the tail end of the conveying path. The positioning device comprises two first clamping pieces oppositely arranged in the second direction, a second clamping piece and a third clamping piece, wherein the second clamping piece and the third clamping piece are oppositely arranged in the first direction. The at least two first clamping pieces and the at least two third clamping pieces are connected with the positioning driving mechanism. The second clamping piece is closer to the rotary table module relative to the third clamping piece, and the positioning driving mechanism drives the third clamping piece to move downwards to be at least lower than the conveying belt when the battery pieces are conveyed to the positioning station. The battery pieces are directly carried to the feeding station after being positioned, the productivity can be improved, fragments or other risks caused by carrying are reduced, and the structure is compact.

The invention provides a database memory allocation method, device and equipment, and the method comprises the steps: obtaining a target sub-memory pool allocated by a target thread used for executing a target task under the condition that the memory demand of the target task is smaller than a preset allocation threshold value, the target sub-memory pool is composed of a plurality of linked lists, each linked list comprises a plurality of memory blocks with the same memory capacity, and the memory capacities of the memory blocks linked by the plurality of linked lists are different; under the condition that the memory demand is larger than the memory capacity of the maximum memory block in the multiple linked lists, a first target allocation memory block is obtained from the global memory pool, and the memory capacity of the first target allocation memory block is larger than or equal to the memory demand; extracting a task allocation memory block corresponding to the memory demand from the first target allocation memory block, and allocating the task allocation memory block to a target task; and adding the remaining memory blocks of the first target allocation memory block into the target sub-memory pool.

The invention relates to the technical field of mannitol preparation, and particularly discloses a preparation method of medicine auxiliary modified mannitol, the mannitol comprises the following components in parts by mass: 100-120 parts of mannitol, 5-10 parts of polyethylene glycol PEG, 2-5 parts of sodium carboxymethyl cellulose CMC-Na, 3-7 parts of cyclodextrin, 1-3 parts of nano silicon dioxide, 10-20 parts of plant source microcrystalline cellulose, and 1-5 parts of chitosan; through compound modification, the hardness and compressive strength of mannitol in the tablet are remarkably improved, the fragmentation phenomenon in transportation and storage is reduced, the integrity of the tablet is ensured, the powder fluidity is improved by adding nano silicon dioxide, and the plasticity of the preparation in industrial production is better; under the synergistic effect of cyclodextrin and chitosan, the dissolving property of mannitol is improved, so that the medicine disintegration is more uniform, and the preparation method is suitable for different dosage forms such as oral instant tablets and enteric sustained-release tablets; and the adjustability of the disintegration time after modification meets the diversified requirements from quick release to slow release.

The invention relates to the technical field of image processing, discloses a myocardial region data processing method and device based on a joint learning framework, and designs a two-stage optimization method of myocardial segmentation pre-training, optical flow estimation pre-training and joint training. The output performance of a final unsupervised optical flow estimation model on a local myocardial region is improved, and semantic information brought by myocardial segmentation can provide physiological shape constraint for an optical flow estimation task and realize optical flow refinement on the local myocardial region; the optical flow estimation can add time sequence constraint for the segmentation task, and the segmentation target frame is diffused to the whole cardiac cycle sequence from the ED / ES frame through motion consistency.

The application discloses a wafer cleaning device, equipment and a cleaning method, the wafer cleaning device includes main drive assembly, slave drive assembly and state detection component, slave drive assembly is driven under the drive of main drive assembly, and the wafer to be cleaned is rotated, and state detection component obtains detection data for detecting whether the rotation state of the wafer to be cleaned is normal, and slave drive assembly moves along the extension direction of the second rotation axis when the rotation state of the wafer to be cleaned is abnormal, so that the rotation state of the wafer to be cleaned is normal, i.e., the rotation speed of the wafer to be cleaned is normal, and then the probability of fragments caused by low rotation speed, unstable rotation speed or non-rotation of the wafer can be reduced, and the wafer cleaning effect can be improved.

The present invention relates to a method for improving the batch processing execution efficiency of spring-batch framework, which is based on file thread database cache interface, creates thread sharding file, then loads and writes the number of paging entries, splits a single large file or a large result set into small files or small result sets according to rules for subsequent processing; developers use business reader interface to write query / read logic according to business needs, loads pending data, and transfers pending data to processor layer; uses file cache entity interface to configure single cache number, reads corresponding row data from thread sharding file at one time, converts it into row data entity, and writes it into redis cache; uses file reading interface to configure basic information of reading file; creates spring-batch framework public class through Reader interface of springframework. Compared with the prior art, the present invention has the advantages of greatly improving batch execution efficiency, reducing business risks of large data volume and high data timeliness, etc.

The invention provides a positive electrode material precursor with high capacity and cycle performance, a preparation method, a lithium ion battery, a positive electrode material of the lithium ion battery and lithium battery equipment, and relates to the field of lithium ion batteries. And the primary particles positioned on the surfaces of the secondary particles of the positive electrode material precursor are spliced and arranged in a block shape. The preparation method comprises the following steps: mixing raw materials including a precipitant, a complexing agent and water to obtain a first base solution, then adding a metal salt solution, the complexing agent and the precipitant into the first base solution, and carrying out a co-precipitation reaction to obtain a positive electrode material precursor; according to the positive electrode material precursor provided by the invention, the positive electrode material precursor with medium nickel content (the molar ratio of nickel to the total metal is 0.5-0.8) achieves the same capacity effect of the positive electrode material precursor with high nickel content (the molar ratio of nickel to the total metal is greater than 0.9) under the condition of keeping high cycle performance.

The utility model discloses a portable water body gas collecting device, which belongs to the technical field of water body gas collection and comprises a degassing main machine, a power supply control main machine is fixedly mounted at the lower end of the degassing main machine, a mounting ring is fixedly mounted on the outer side of the upper end of the degassing main machine, and a gas collecting bag with an arc-shaped structure is fixedly mounted in the mounting ring. A mounting ring is arranged on the degassing main machine, a pull rod is inserted into the mounting ring, universal wheels are fixedly arranged at the lower end of the power supply control main machine, an air pump, a water pump and a vacuum pump are fixedly arranged at the upper end of the degassing main machine, the air outlet end of the air pump is communicated with an air collecting bag, and a cover plate is clamped at the upper end of the mounting ring. The portable electric appliance box is convenient to carry similar to a luggage case, the convenience in carrying is improved, electric elements are conveniently protected through a cover plate when the portable electric appliance box is not used, the placement stability is improved when the portable electric appliance box is used, temporary storage is facilitated through an air collecting bag after air is separated, the scattered performance of carried articles is reduced, and the portable electric appliance box is convenient to use.

The invention discloses a memory management method for reducing memory fragmentization, and relates to the technical field of memory management of a real-time operating system, the method mainly comprises the steps of heap area initialization, cache area initialization, memory allocation and the like, and the method comprises the steps of creating a linked list array, declaring a fixed-length memory pool linked list, a fixed-length memory pool and a memory block-data structure. A fixed-length memory pool cache region with the size of a plurality of memory blocks is constructed, direct memory allocation from a heap region can be avoided, variable-length memory pool management is adopted for heap region allocation in a matched manner, the frequency of heap region memory block cutting is reduced through combination of the two, memory fragmentation is reduced, the allocation speed is high, and the allocation efficiency is improved. And the memory blocks in the heap region and the memory blocks in the cache region can be recycled, so that the frequency of dividing the memory blocks in the heap region is reduced again, the memory allocation efficiency is improved, and the running requirements of a real-time operating system can be met in a matched manner.

There is provided a light source device according to one embodiment of the present disclosure for outputting an extreme ultraviolet light source based on an electron beam, comprising: a chamber; an electron beam emission unit including a cathode electrode and a plurality of emitters, each of which contains a carbon-based material and which are arranged over the cathode electrode in such a manner as to be spaced apart from each other, the electron beam emission unit generating an electron beam within the chamber; and an anode electrode positioned within the chamber, but in a manner that is spaced apart from the electron beam emission unit, and ionized upon incidence of the electron beam thereon, thereby generating plasma, wherein extreme ultraviolet is generated from the plasma.

The invention relates to the technical field of hemostasis management, in particular to a multi-robot hemostasis management system based on task scheduling, which comprises a hemostasis physiological monitoring module, a compression state time sequence module, a hemostasis task scheduling module, a release path planning module and a multi-robot collaboration module. Multi-type physiological monitoring, identity labels, position changes and operation nodes are subjected to linkage collection, the whole-process tracking ability of the sick and wounded is enhanced through time and space identification, the compression period and operation allocation are optimized through interaction judgment of physiological monitoring and path information, intelligent response of task sorting and execution subject selection is achieved, and the system is high in practicability and easy to popularize. Space nodes and passing tracks are dynamically updated, the avoiding and resource utilization efficiency during hemostasis robot cooperation is improved, task linkage parameters are synchronized, the scheduling sequence and execution stability of the sick and wounded in batches are improved, the splitting and conflict phenomena are reduced, an information chain penetrates through the front line and the rear line, and the efficiency is improved. Time sequence management, risk prevention and control and group cooperation capability of hemostasis management are enhanced.

The present invention relates to the field of file management technology, and in particular to a Hive small file management method, the method comprising: setting an initial cleaning cycle, regularly cleaning the generated small files to obtain regular cleaning results; real-time monitoring of the generation of small files, and determining whether the small files are abnormal based on the generation; determining the abnormality level of the small files based on the abnormality of the small files; determining a small file management strategy based on the abnormality level, and determining a management score based on running the small file management strategy; calculating an overall performance score based on the regular cleaning results combined with the management score; adjusting the initial cleaning cycle based on the overall performance score, or optimizing the management strategy. The present invention reduces the need for manual intervention, improves efficiency, avoids the accumulation of small files and performance degradation, and ensures the efficient operation of the management process through comprehensive management from regular cleaning to performance scoring to strategy optimization.

The application discloses a kind of GPU-based gold mine particle size distribution three-dimensional reconstruction method, equipment and medium, it is related to three-dimensional image processing technical field, including, acquisition gold mine stockpile multi-view image and camera pose, complete image normalization and calibration alignment processing on GPU, and calculate perspective quality weight, obtain synchronous frame group, pose matrix and quality weight table;According to pose matrix, candidate depth mutual projection is executed in parallel to synchronous frame group, and according to quality weight table, similarity is gathered, and matching cost body is generated, and matching cost body generates dense depth map and depth confidence map by semi-global matching, and the three-dimensional sampling point is obtained by executing back projection to dense depth map, three-dimensional sampling point is parameterized as Gaussian primitive and forms three-dimensional model state.The application realizes the inhibition of false matching under the condition of occlusion and weak texture and improves the stability and reliability of depth description by fusing multi-view mutual projection similarity and combining semi-global matching to output dense depth and depth confidence.

The application provides a quartz boat taking device, and relates to the field of semiconductor manufacturing. The quartz boat taking device comprises a taking device body, a connecting piece and a handheld piece. The connecting piece is connected with the taking device body and the handheld piece respectively. The taking device body is used for cooperating with a quartz boat. The handheld piece is used for being held by an operator to take and place the quartz boat through the taking device body. The quartz boat taking device has the characteristics of being convenient to hold, can facilitate the operator to take and place the quartz boat, can effectively reduce or avoid the problem of collision and damage of the quartz boat and fragments caused by improper operation when the operator places and takes the quartz boat, and can also reduce or avoid the problems of cost waste caused by damage of the quartz boat and contamination of the furnace tube caused by the broken chips, thereby helping to improve the quality of the chips and improve the yield of the chips.

This invention discloses a low-carbon tin-containing free-machining steel and its production method. The weight percentage (wt%) of the chemical composition in the steel is: C 0.06-0.15, Si 0.10-0.30, Mn 1.50-1.80, S 0.40-0.60, P 0.06-0.10, Sn 0.30-0.50, Mn / S≥4.0, Sn / S≥0.80, O: 130-200ppm, with the remainder being iron and unavoidable impurities. This invention, through compositional design, controls Mn / S≥4.0 to improve the spindle morphology of sulfides, and Sn / S≥0.80 to achieve Sn aggregation near sulfides and grain boundaries, as well as aggregation and precipitation in other areas of the material matrix, which is more conducive to improving the material's machinability and reducing turning cracks. The Sn element is added using a combined addition technology of the tundish impact zone and the crystallizer nozzle, which improves the Sn yield.

A method for solving the problem of broken pieces in the bonding process of Micro LED wafers belongs to the field of processing technology of semiconductor devices. The method first involves cleaning the substrate surface of a sapphire substrate GaN epitaxial wafer, then laser etching the substrate surface to obtain a deep groove with a periodic grating structure or a bull's eye ring structure, then growing a SiO2 layer on the substrate surface, spin-coating a positive photoresist and curing it, then performing mask exposure on the photoresist film in the deep groove, decomposing the exposed photoresist film to expose the SiO2 layer in the deep groove; after removing the SiO2 layer in the deep groove, Mg ion implantation is performed to obtain an ion implantation layer in the deep groove. The method of the present invention can effectively release substrate stress and reduce the hardness of the GaN epitaxial wafer so that it can better match the hardness of silicon-based CMOS, all of which effectively reduce the generation of broken pieces in the bonding process of Micro LED wafers.

The embodiment of the present application provides a method and device for managing a memory pool, a storage medium, and an electronic device, wherein the method includes: obtaining the operation requirements of a distributed storage system, and dividing the storage resources associated with the distributed storage system into large pages according to the operation requirements to obtain multiple target memory pools; wherein each of the multiple target memory pools corresponds to a class of memory object types, and the class of memory object types includes at least one memory object; recording historical data of using multiple target memory pools within a first preset period; constructing an intelligent prediction model through historical data and a preset initial prediction model, and using the intelligent prediction model and the current state data of the distributed storage system to predict the adjustment requirements within a second preset period; and dynamically managing multiple target memory pools based on the adjustment requirements. The problem of high overhead and low efficiency of memory allocation, and inability to achieve dynamic management and optimization of memory resources, is solved.

The present application belongs to the field of industrial internet security and asset identification, and relates to a kind of industrial internet component fingerprint library construction method, to solve the problem of single data source fingerprint feature sparse, low identification rate.The present application includes: obtaining industrial exchange traffic, control log and component firmware metadata and correlation alignment, form multi-source data set;Extract protocol behavior fingerprint, operation semantic fingerprint and static gene fingerprint and correct;The corrected fingerprint is mapped to a feature matrix, the weight is determined according to the stability, and when different data sources conflict, conflict resolution is carried out based on protocol, operation semantic and firmware structure constraint relationship, to generate fusion fingerprint;Through clustering fusion, the common characteristics of similar components are extracted to form fingerprint library entries;Finally, based on component state or configuration change, difference comparison is carried out, to realize dynamic update or branch establishment of fingerprint library.The present application improves the accuracy, robustness and dynamic adaptability of industrial internet component fingerprint.

The utility model discloses salted egg yolk sorting equipment, relates to the technical field of salted egg yolk sorting, and aims to solve the problems that in the prior art, salted egg yolks are sorted in a sorting bin rotating mode, but the salted egg yolks are soft in texture and prone to breakage due to rotating and rolling, and the production quality of the salted egg yolks is affected. Supporting seats are fixedly connected to the front end and the rear end of the middle of the upper end of the inner side of the first H-shaped support correspondingly, first rotating blocks are rotationally connected to the upper ends of the two supporting seats correspondingly, second rotating blocks are rotationally connected to the upper ends of the two sliding blocks correspondingly, and third rotating shafts are rotationally connected between the two first rotating blocks and the two second rotating blocks correspondingly; and conical sorting rollers are fixedly arranged on the two third rotating shafts correspondingly, through the design of the conical sorting rollers, rotation and rolling of the salted egg yolk in the sorting process are avoided, the fragmentation situation of the salted egg yolk is effectively reduced, and the production quality of the salted egg yolk is improved.

The embodiment of the invention provides a calendering coil die cutting design method and equipment, and belongs to the technical field of die cutting. The method comprises the steps that calendering coil die cutting design data are obtained and stored in a database, the data comprise raw material coil data and order data, the raw material coil data comprise the raw material coil area, and the order data comprise the order area; based on the area of the raw material coiled material and the area of the order, the raw material coiled material and the order are arranged in a descending order according to the area, and a priority processing queue is obtained; obtaining raw material coiled materials and orders from the priority processing queue based on a greedy algorithm to obtain a die cutting design scheme; and outputting the die cutting design scheme for business personnel to confirm. The method is used for reducing the labor cost and the time cost during die cutting design of the calendering coil.

The invention relates to an adhesive and a preparation method thereof, a solar cell and a photovoltaic module. The adhesive comprises a component A and a component B, the component A is prepared from the following components in parts by weight: 30 to 50 parts of epoxy resin and 20 to 30 parts of organic silicon modified polyethersulfone resin; the component B comprises a curing agent. The organic silicon modified polyethersulfone resin is obtained by reacting hydroxyl-terminated polyethersulfone resin with an epoxy silane coupling agent. The organic silicon modified polyethersulfone resin improves the fracture toughness, flexibility and bonding strength of a system by introducing a flexible chain segment and a tough polymer, and is matched with the epoxy resin to form a protective adhesive layer with excellent flexibility, aging resistance and corrosion resistance. The adhesive is coated on the edge area of the cutting edge of the battery piece to form a protective adhesive layer, so that the reduction of mechanical strength caused by defects of the edge area of the cutting edge of the battery piece is made up, and the condition that the battery piece is broken in the static load and dynamic load processes of the photovoltaic module is reduced.

The invention relates to the technical field of projection display, in particular to a display method, display equipment, a storage medium and a vehicle. According to the method and the device, the display elements are gradually filled, so that the display elements presented after projection adopt different brightness information at different positions on the premise of keeping smooth impression, and the correspondence between the display parameters of the ghosting elements and the display elements is utilized; brightness information which is darker than that of the first end far away from the ghosting element is adopted at the second end, close to the ghosting element, of the display element, so that the split feeling of the junction of the display element and the ghosting element is reduced. The information projection effect of the HUD display device is not affected by ghosting, and the watching experience of a user can be optimized.

This invention relates to the field of image fusion technology, specifically disclosing a multimodal image fusion method and system based on three-domain collaborative nonlinear reconstruction. The method includes acquiring a first-modality medical image and a second-modality medical image to obtain basic shallow representations; inputting the basic shallow representations into a multi-level coding structure, with the output of each coding level being downsampled and passed to the next level; setting a dual adaptive enhancement module at the output of each coding level to obtain enhanced cross-layer connectivity features; inputting the deepest coding features into a bottleneck aggregation structure; inputting the output of the bottleneck aggregation structure into a multi-level decoding structure, with each decoding level upsampled and fused with the enhanced features output from the corresponding coding level; and mapping the final decoding result to a single-channel fused image through pointwise convolution and an activation function. This invention employs a reconstruction method combining hierarchical coding, deep aggregation, and step-by-step decoding to improve the structural integrity, texture clarity, and visual naturalness of the fused image.

The invention relates to the technical field of target characteristics and camouflage protection, in particular to a route planning method and device based on the road shielding degree, and the method comprises the steps: obtaining a shielding region through threshold segmentation on the basis of image preprocessing; after component information is weakened, pixel point space domain enhancement and shielding area information recovery are achieved through a compensation method, and on the basis that the difference between road surface shielding and the surrounding environment is increased, shielding road extraction is achieved through an efficient segmentation algorithm; non-shielded roads obtained through clustering segmentation are combined, and the shielding degree of shielded roads is finally calculated through refining processing. According to the method, the shadow shielding road in the shadow area can be extracted.