174results about How to "Granularity" patented technology

The embodiment of the invention provides a method for processing data blocks, and data block storage equipment and a data block storage system. The method comprises the following steps of: acquiring an access frequency of each data block stored in the data block storage equipment at the present within a predetermined time interval; moving the data blocks according with a preset condition to the first data block storage equipment, wherein the preset condition is that: the access frequency is less than a first preset threshold value, and the first data block storage equipment is the next data block storage equipment of the data block storage equipment at the present; and/or, the present condition is that: the access frequency is greater than a second preset threshold value, and the first data block storage equipment is the former data block storage equipment of the data block storage equipment at the present; and establishing a mapping relation table for realizing access of the moved data blocks, wherein the mapping relation table comprises a mapping relation between a logic unit address of the moved data block in the data block storage equipment at the present and a logic unit address of the moved data block in the first data block storage equipment.

The invention provides a memory built-in self-repairing system which comprises a built-in self-testing circuit, a built-in self-diagnostic circuit, a built-in self-repairing circuit and a redundant row/column and is characterized in that: the built-in self-repairing circuit comprises a word repairing circuit provided with a redundant content addressable memory which is specially used for repairing the unit failures of a main memory; the redundant row/column is specially used for repairing the coding failures of the main memory. The invention also provides a corresponding built-in self-repairing method. The built-in self-repairing system and the built-in self-repairing method have the advantages of fining the granularity of redundant resources, increasing the utilization rate of the memory redundant resources, promoting the reliability of the memory after repairing by avoiding failed units with accessing defects, having simple default diagnosis and redundancy allocation algorithm that are easy to realize, making full use of the redundant resources and having better repairing effect.

The method includes following key points: when the method establishes LSP, entrance LSR or transmit LSR carries service quality parameter (SQP) relevant to resource allocation in Path message; after receiving Path message, transmit LSR puts apart bandwidth resource for traffic flow based on SQP; after LSP is established, transmit LSR of receiving traffic flow determines bandwidth of traffic flow put apart, and forwards traffic flow according to bandwidth put apart. The invention also discloses system for implementing DS-TE of MPLS network. The system includes entrance LSR, transmit LSR, and exit LSR. Thus, the invention can allocate bandwidth resources based on different types of traffic flow, and further can thin granularity of traffic flow engineering.

A method to prepare ultra-fine grain tungsten-copper alloy and the tungsten-copper alloy, it belongs to powder metallurgy technology field. The solution of concentrated HNO3 and solution of Cu (NO3)2 will be added into the solution of (NH4)2WO4 at the condition that they are blended, the chemical deposition reaction will occur in the agitator. And then the deposit will be burned and grinded to produce the composite powder of tungsten-copper oxidate. The composite powder will be reduced at low temperature in the pipe furnace, and nanometer tungsten-copper composite powder can be gained, and then they will be pressed to take shape, the pressed compact will be sintered at the protection of H2 and ultra-fine grain tungsten-copper alloy can be gained. The weight percent of copper in a kind of tungsten-copper alloy produced according to the above method is 20%, the relative density of the alloy is 98.0%-99.7%, the average crystal grain size of the tungsten in the alloy is 0.5-1.5 mu m, the electrical resistance of the alloy is 0.035-0.041X10-6omega .m, the heat-transmit index is 200-223W.m-1.k-1. The advantage of it is that. The densification degree of the alloy is high, the tungsten crystal grain is small and uniform, the copper is highly dispersed to compose a compact net. And the flow of it is short, the technology operation is easy and reliable, the production efficiency is high, the energy and production cost is lower, and an industrial production can be carried on according the method.

The invention relates to an aluminum-scandium alloy target blank and a preparation method and application thereof. The aluminum-scandium alloy target blank comprises, by weight part, 0.1-15 parts of scandium and 85-99.9 parts of aluminum, and the oxygen content of the aluminum-scandium alloy target blank is smaller than or equal to 160 ppm. The aluminum-scandium alloy target blank has the beneficial effects that the oxygen content is low, then the prepared target blank cannot generate abnormal discharge or particle splashing scars, and later high-quality film forming can be guaranteed; and inaddition, the aluminum-scandium alloy target blank is even in target blank crystal particle size.

The present invention relates to the equipment using gassy pulverization high temperature coulee to make super thin powder, especially heavy-fisted gassy pulverization muzzle. It comprises guiding flow pipe outside which there is gas cavity whose ektexine and wall form Laval spout frame. The ektexine of pipes around the top of guiding flow pipe takes on taper. This invention can be applied to material with pulverization high melting point and the need to liquid's superheat temperature is not high. The air current of high-handed gas pulverizations melting liquid make super thin powder by very kinetic energy. It can not only make the most use of gas energy and make sure of the continuity on craftwork but also slender the powder and improve productivity.

The invention relates to submicron narrow particle size distribution type tungsten powder and tungsten carbide powder and a preparation method thereof, and belongs to the field of metallurgic powder preparation of refractory metal powder. The submicron narrow particle size distribution type tungsten powder and tungsten carbide powder are characterized in that the average particle size is 0.1 to 1.0 micron, and the maximum particle size is not greater than twice of the average particle size. The preparation method comprises the following steps: taking an ammonium tungstate solution as a raw material and a high molecular surfactant as a dispersing agent; reinforcing the dispersion effect through alcohol or ketone; quickly crystallizing and drying by spray drying to obtain fine particle hollow thin-walled spherical ammonium tungstate crystals; and performing pyrolysis, hydrogen gas reduction and carbonizing; and then generating submicron narrow particle size distribution type tungsten powder and tungsten carbide powder in situ. According to the preparation method, the submicron narrow particle size distribution type tungsten powder and tungsten carbide powder can be prepared in situ; and the technology is reformed and upgraded on the basis of the existing production condition of the enterprise, so that the scale production is easily realized, the production efficiency is high, and the effect is great.

This invention relates to the preparation and application of a high potential gradient ZnO piezoresistive material including: mixing raw materials in the mol ratio of ZnO: Bi2O3:Sb2O3:Cr2O3:Co2O3:MnO2=96.5:0.7:1.0:0.5:0.8:0.5 to get the product by first and second time powerful fine grindings, low temperature sinter, which is taken as the raw material to be pressed to formation, sintered at low temperature, coated with electrode Ag pulp and welded with electrode lead to get the product of high potential gradient ZnO piezoresistors. This invention greatly refines the metal oxide mixed powder grain size by twice-powerful grindings, the sintered temperature is only 900deg.C and the grain is 1.5-3.5mum.

This invention discloses a method which can realize the measuring example running automatically, firstly the state of section point is set, and the state section point can assemble into a state tree according to the execution way. Secondly, the transfer functions and process element of any two sections will be founded and stored in the real phase tree. During the realization of testing example, the start and end state are the state of the tree which separately sets to the prepositive and postposition condition. When multi testing examples are running, after one example finishes, the process element can take the finish phase of the testing example as the start of the conversion, and the start phase of the fellow example takes as the end of conversion and transfers the corresponding function to accomplish the conversion, then the next testing example is executed. This invention can realize the automatically control of testing example, and the setup is agility and does not need more maintenance.

The invention discloses a nickel and zinc soft magnetic ferrite material and a preparation method thereof. A high-temperature-resistant soldering tin, nickel and zinc soft magnetic ferrite material comprises the following components in parts: 45-50mol percent of Fe2O3, 26-32 mol percent of ZnO, 17-21 mol percent of NiO and 4-8 mol percent of CuO, and also comprises the following components in parts: 0.2-0.5 wt percent of auxiliary material A and 0.1-0.2 wt percent of auxiliary material B, wherein the auxiliary material A is one or two of Bi2O3, SiO2 and Ta2O5, and the auxiliary material B is one or more of TiO2, ViO5 and Nb2O5. The high-temperature-resistant soldering tin, nickel and zinc soft magnetic ferrite material has the characteristics of high frequency, high magnetic conductivity,high Bs and TC (Temperature Curie).

The invention discloses a powerful casting technology for aluminum alloy wheels. The powerful casting technology aims at solving the problems that in traditional low-pressure casting and gravity casting of the aluminum alloy wheels, the feeding capacity is weak, the strength of castings is low, and the ductility is low. According to the powerful casting technology for the aluminum alloy wheels, under the condition that materials are not changed, as the casting technology is changed, the application effects of increasing density, strength, the ductility, the material use rate and the production rate are achieved. The powerful casting technology is characterized in that conventional cast aluminum is smelted to be within a casting temperature range, casting is completed in an air-entrapment-free flow guide and speed-control mold filling mode, real-time powerful feeding in the solidification process is carried out on molten aluminum sealed in a cavity through a feeding pressurizing mechanism, a mold temperature control measure point and cooling-channel distribution method is given based on the sequential-solidification and rapid-cooling thought, and necessary conditions are provided for obtaining the castings with the tiny grain size and smoothly implementing powerful feeding.

The invention provides a terminal device identification method being resistant to browser fingerprint change. The invention includes I extracting a fingerprint generation scheme of forming the fine grain by means of multi-attribute features by filtering the redundant attributes and segmenting the coarse-grained attributes; II constructing the corresponding Bayesian network structure and performing parametric learning according to the mutual relation between the fingerprint attributes; and III performing fingerprint coupling classification on the unknown equipment and feeding back the result. By analyzing and filtering the relative attributes, the plurality of fine-grained attributes are extracted to form the browser fingerprint, and moreover, the mutual relation between the attributes is inferred according to the fingerprint change condition, a corresponding Bayesian network is constructed, so that the accurate identification of the terminal device under the finger change condition can be realized.

The invention discloses a method and device for detecting multidimensional flow anomalies of a distributed network. The method comprises the following steps: extracting instantaneous parameters of each signal flow which is received by a certain node as mixed signals of a given source signal; calling an independent component analysis (ICA) algorithm to divide each signal flow into N independent signals, and taking weak Gaussianity as extraction reference to extract relative abnormal signals in the N independent signals of each signal flow, wherein N is less than or equal to the dimensionality of the mixed signals of the given source signal; dividing a data set Y constituted by the relative abnormal signals into a strongly correlated portion Z1 and a weakly correlated portion Z2 by virtue of principle component analysis (PCA); adopting timed sliding of a fixed-length time window to capture the signal sequence of the strongly correlated portion Z1, and carrying out PCA on the captured signal sequence each time so as to obtain a vector z1(t); and when the size of the vector z1(t) exceeds a normal threshold value, judging that anomalies exist. According to the invention, the ICA is utilized to separate out abnormal portions from the frequency domain and time domain of each flow signal, thus eliminating influences caused by similar characters among the normal flows.

The invention discloses a pre-lithiated silicon monoxide/carbon composite material, and a preparation method and application thereof, and belongs to the technical field of silicon monoxide materials.The preparation method comprises the following steps: performing vapor deposition on a silicon monoxide material to coat a carbon layer to prepare a silicon monoxide/carbon composite material; crushing a lithium salt to a proper particle size, and uniformly mixing the crushed lithium salt with silicon monoxide/carbon; and heating the mixed material to a certain temperature, and keeping the temperature for a period of time in a reducing atmosphere to obtain the pre-lithiated silicon monoxide/carbon composite material. According to the present invention, with the simple and efficient preparationmethod, a negative electrode material with characteristics of high first effect and good cycle performance can be effectively prepared, the negative electrode material can be well used for preparingthe lithium ion battery negative electrode material, and the method has advantages of low cost and easy scale-up production compared to the lithium supplementing through the metal lithium.

The invention relates to a seamless steel tube, in particular to a molybdenum-base rare earth powder metallurgy forming plug used by a high nickel-chromium stainless steel seamless pipe and a manufacturing method thereof. The manufacturing method of the molybdenum-base rare earth powder metallurgy forming plug comprises the following steps of: simultaneously mixing four rare earth oxides of ZrO2, Y2O3, La2O3 and SC2O3 in pure molybdenum powder; mixing molybdenum-base material to prepare powder by using an ultrasound characteristic; packaging the powder into a vane mixing blender, dispersing mixed molybdenum-base rare earth powder by primary refining; dispersing homogenized molybdenum-base rare earth powder by ultrasound refining through an ultrasound transducer; screening by a 180-mesh equalizing screen in accordance with a configured Tyler standard in a 'vibrating screen classifier' to obtain screen under flow, namely blended qualified molybdenum-base rare earth powder; and manufacturing the molybdenum plug by an isostaticmoulding mold, demolding and cleaning, and finishing the manufacturing in a configured hydrogen atmosphere roaster, a hydrogen atmosphere pre-sintering furnace and a hydrogen atmosphere horizontal intermediate frequency furnace. The molybdenum-base rare earth powder metallurgy forming plug and the manufacturing method thereof can be widely applied to chemical industry, metallurgy, machinery, aviation, national defense and other industrial departments.

The embodiment of the invention discloses a GPU resource-oriented task scheduling method. . The method comprises the following steps of when a task (such as a first target task) needs to be executed by using a video memory resource in a server cluster, calculating the size of a video memory resource required by the first target task according to the attribute information of the first target task included in the first task request and a task resource use configuration table, and then, according to the available resource state table of the server cluster, determining the GPU meeting the video memory resource size required by the first target task, so that the task execution module executes the first target task by utilizing the target GPU. According to the scheme, when the task request is received, video memory resource estimation of the task is carried out, the available GPU is selected with the video memory resource as the minimum unit to complete the task, and the granularity of resource management and task scheduling is refined. If the video memory resources in one GPU meet the task requirements, the purpose that one GPU executes multiple tasks in parallel can be achieved, and the utilization rate of the video memory resources in the GPU is increased.

The invention provides a software security enhancing method based on binary rewrite and dynamic randomization, comprising the following modules: 1) static binary rewrite; 2) double-level mapping, namely from a process logical page to a logical page and from the logical page to a physical page; 3) a dynamic randomization mechanism periodically randomizes a process address space by taking pages as granularities; 4) a logical address mapping redirecting mechanism provides the logical address mapping a redirecting service for a process. According to the software security enhancing method based on the binary rewrite and the dynamic randomization, the randomization entropy of the process address space is remarkably improved through the fine granularity dynamic cyclical randomization, the successful probability of attacking of an attacker is lowered, and the security of the a computer system and software is improved.

The invention discloses a preparation method of spherical nanometer CeO2 polishing powder and belongs to the field of nanometer material research. The preparation method utilizes a crystal water-containing cerium salt and citric acid as raw materials, a proper amount of ethanol as a lubricant and the ball milling mechanical force to refine the raw materials so that reaction efficiency is improved. Crystal water released by the raw materials and the lubricant ethanol form a liquid film and precursor gel is directly prepared so that a ball milling solid-phase chemical reaction method and a sol-gel method are combined. The gel can effectively inhibit the agglomeration and growth of cerium oxide particles in later calcination processes so that the pherical nanometer CeO2 polishing powder with uniform particle sizes, good dispersibility and good polishability are prepared. The pherical nanometer CeO2 polishing powder has uniform particle sizes, good dispersibility and good polishability. The preparation method has the advantages of simple processes, high efficiency, no pollution and good reproducibility, and is suitable for industrial mass production.

The present invention relates to a cold fresh pulp preparation method. The technical problem solved by the present invention is to reduce oxidation during a fresh keeping process, improve pulp freshness and improve original taste. A super micron fiber fruit dissolving technology is adopted, such that the pulp is instantly dissolved in water, layering and precipitation are not easily generated, and nutrition is easily absorbed by human body. The preparation method comprises the following steps: 1) preparing a material; 2) adopting a colloid mill to prepare a coarse pulp; 3) preparing fruit dissolving fibers, wherein the coarse pulp is grinded into fruit dissolving fibers through a super high pressure homogenizer, a particle size is less than or equal to 800 nm, super high pressure homogenizer working pressure is 60-80 Mpa, and a grinding temperature is controlled to less than or equal to 20 DEG C; 4) carrying out vacuum liquid state sub-packaging; 5) carrying out super high pressure low temperature sterilization; 6) carrying out low temperature quick partial-freezing, wherein the sterilized pulp is placed into a low temperature quick partial-freezing machine, a freezing temperature is -30 to -35 DEG C, and a freezing time is 6-15 min; and 7) carrying out low temperature cold preservation, wherein a temperature is less than or equal to -18 DEG C.