185results about How to "Uniform performance" patented technology

The invention relates to the technical field of artificial intelligence interpretability, and discloses a neuron correction-based large language model cue word attack prevention method, which comprises the following steps of: constructing an attack cue word data set, and rewriting attack cue words to obtain a contrast cue word data set consisting of contrast cue word data; constructing a probe, obtaining output values of all neurons in the large language model during reasoning, and further obtaining a neuron activation state of the large language model; inputting the attack cue word and the corresponding contrast cue word into a large language model, and summarizing the obtained neuron activation state table to obtain an additional activation neuron corresponding to the attack cue word; and inputting cue word attack data into the large language model, and forcibly zeroing the output of one or more neurons in the additional activation neurons. By correcting the key neurons, the model performance and the prevention effect are balanced, and the security of the large language model is improved.

The invention relates to the technical field of dry-type power transformer manufacturing, in particular to a graded pouring process technology for an epoxy resin coil with filler, which comprises the steps of coil drying, epoxy resin preparation, vacuum pouring, semi-gelling, secondary vacuum pouring, curing and demolding. Drying the coil; preparing epoxy resin; vacuum pouring is conducted, specifically, pouring is conducted when the vacuum degree of a pouring tank reaches 3-4 mbar and the temperature is (Tn-10) DEG C, intermittent stroke pouring is conducted, and the interval time of each stroke is 1.5-2 minutes; and the pouring is paused for 8 minutes after each about 30 minutes of pouring, and then the pouring is paused for 8 minutes after 30 minutes of pouring, so that a traditional vacuum pouring process is improved, and two-stage or multi-stage vacuum pouring and semi-gel procedures are introduced to a high-capacity coil, so that bubble discharge is effectively promoted, filler sedimentation is reduced, shrinkage stress is reduced, and the cracking risk is reduced; and great benefits are provided for improving coil quality and guaranteeing long-term safe operation of the transformer.

The invention discloses a low-defect-stress SiC crystal and a SiC substrate, and belongs to the technical field of SiC material preparation. A plurality of SiC substrates are prepared from the SiC crystal, high-pass signals and low-pass signals are distinguished on the basis of the Laplacian pyramid principle, and under the high-pass signals, the overall optical path difference of any SiC substrate is lt; 6 nm, the maximum value of the optical path difference is lt; the standard deviation of the optical path difference is lt; and 3nm. The optical path difference between the SiC crystal and the SiC substrate is small and uniform under a high pass signal, the number of defects in SiC is small, stress concentration caused by in-plane defects is small, and the crystal quality of SiC is more uniform.

The invention relates to the technical field of adhesives, in particular to a flexible circuit board covering film and a preparation method thereof.The covering film is composed of a release film, a photo-thermal dual-curing composition and a polyimide film from top to bottom; the photo-thermal dual-curing composition is prepared from the following components in parts by weight: 80 to 125 parts of acrylic acid prepolymer, 8 to 25 parts of benzoxazine-novolac epoxy resin, 0.1 to 10 parts of photoinitiator, 0.1 to 5 parts of photosensitizer and 10 to 100 parts of solvent I. Due to the existence of the photo-thermal dual-curing composition, the peel strength of the cover film after photo-curing and thermal curing reaches 1.4 N / mm; the benzoxazine-novolac epoxy resin is applied to the cover film of the flexible circuit board, so that the cover film has acid resistance and high temperature resistance; by controlling the glass-transition temperature of the acrylic prepolymer, the requirements of high peel strength and high weather resistance of the cover film are met at the same time, so that the properties of the cover film in all aspects reach a balanced state.

The invention discloses a ceramic fiber and aerogel composite thermal insulation material and a preparation method thereof, and belongs to the technical field of composite thermal insulation materials, the preparation method comprises the following steps: preparation of a primary aerogel solution, primary treatment, preparation of a secondary aerogel solution, secondary treatment, preparation of a modified silicon carbide whisker suspension, and compounding; the step of preparing the primary aerogel solution comprises the following steps: preparing coated graphite, and mixing; the compounding comprises the following steps: completely dipping the silicon carbide fiber felt subjected to secondary treatment in a modified silicon carbide whisker suspension in an argon atmosphere, and standing at 55-60 DEG C; adding into a high-pressure reaction kettle, and carrying out supercritical drying by using carbon dioxide; and finally, adding into a tubular furnace for high-temperature treatment to obtain the composite thermal insulation material. The composite thermal insulation material prepared by the invention is good in thermal insulation property, hydrophobicity, toughness and durability, uniform in performance, and good in thermal shock resistance and high temperature resistance.

The embodiment of the invention is suitable for the technical field of artificial intelligence, and provides a re-calculation training strategy generation method, electronic equipment and a computer program.The method is applied to a heterogeneous cluster and comprises the steps that cluster information of the heterogeneous cluster and model feature information of a to-be-trained model are determined; for each storage and calculation resource in the heterogeneous cluster, according to the cluster information and the model feature information, re-calculation time information and re-calculation performance requirements are determined; determining a re-calculation time information characteristic value under the condition that the re-calculation performance demand is not greater than the performance limit value of the storage and calculation resources; and determining a recalculation training strategy for the to-be-trained model according to the recalculation time information feature value corresponding to each storage and calculation resource. According to the embodiment of the invention, the adaptive re-calculation training strategy can be determined for each storage and calculation resource of the heterogeneous cluster, and the model training efficiency and throughput are improved by adopting the re-calculation training strategy corresponding to each storage and calculation resource to carry out model training.

The invention relates to the technical field of PVB heat-insulating films, in particular to a PVB heat-insulating film based on indium tin oxide and bronze cesium tungsten compounding and a preparation method thereof.The PVB heat-insulating film is prepared from, by weight, 80-120 parts of PVB resin, 20-50 parts of oily plasticizer, 0.1-2.0 parts of silane coupling agent, 0.1-1.0 part of antioxidant, 0.1-1.0 part of ultraviolet light absorber, 1-5 parts of polyethylene glycol derivative and 1-5 parts of compound dispersion slurry, the weight ratio of the indium tin oxide powder to the bronze cesium tungsten powder in the compound dispersed slurry is (5: 5)-(7: 3). According to the PVB heat-insulating film based on indium tin oxide and cesium tungsten bronze compounding and the preparation method, the prepared PVB heat-insulating film has high visible light transmittance and excellent near-infrared light rejection rate, meanwhile, the Faraday cage effect can be effectively avoided, and the signal shielding problem is avoided.

The invention belongs to the technical field of ceramics, and particularly relates to a preparation method of a wear-resistant ceramic material. The preparation method comprises the following steps: mixing 40 parts by weight of potassium feldspar, 15 to 30 parts by weight of albite, 1 to 8 parts by weight of kaolin, 1 to 8 parts by weight of serpentine, 5 to 20 parts by weight of calcined talc, 2 to 8 parts by weight of nano-zirconia, 0.1 to 1 part by weight of graphene oxide, 0.1 to 0.8 part by weight of basalt fiber, 0.5 to 2.5 parts by weight of polyoxyethylene ether, 0.1 to 0.8 part by weight of a fullerene trifluoromethyl derivative, 0.1 to 2 parts by weight of sodium dodecyl sulfate and 10 to 50 parts by weight of a solvent; carrying out spray granulation to obtain a blank, carrying out compression molding to obtain a green body, and sintering to obtain the wear-resistant ceramic material. The wear-resistant ceramic material prepared by the preparation method of the wear-resistant ceramic material has good wear resistance and high breaking strength, for example, the breaking strength exceeds 65 MPa.

The invention discloses an additive forging composite forming method for integrally loading local deformation on an aluminum alloy lightweight wheel-shaped component, and relates to an additive forging composite forming method for a wheel-shaped component. The problems that an existing spaceflight aluminum alloy light-weight wheel-shaped component is poor in direct additive forming structure performance, a forging forming die is difficult to fill, the forging process is long, and the die cost is high are solved. The method comprises the following steps: 1, performing additive forming on a main blank; 2, pre-forging and forming the spoke; 3, machining and finishing the pre-forged piece; fourthly, secondary material adding is conducted on the rim; 5, carrying out homogenization heat treatment on the whole wheel; 6, integrally forging and forming the wheel; and 7, wheel direct aging strengthening treatment. The method is used for additive forging composite forming of the aluminum alloy light-weight wheel-shaped component subjected to overall loading and local deformation.

The invention discloses a control method for a strip-shaped structure of a GH4169 nickel-based superalloy. The control method comprises the following steps that a GH4169 nickel-based superalloy cast ingot is prepared, and first homogenization treatment is conducted on the GH4169 nickel-based superalloy cast ingot; the GH4169 nickel-based superalloy cast ingot is transferred to a press machine to be subjected to first upsetting and drawing to obtain a bar blank, and first annealing treatment is carried out; the bar billet is transferred to the press machine to be subjected to second upsetting and drawing to further obtain the bar billet, and second annealing treatment is carried out; the bar billet is transferred to the press machine to be subjected to third upsetting and drawing to further obtain the bar billet, and third annealing treatment is carried out; the bar billet is transferred to the press machine to be subjected to fourth upsetting and drawing to further obtain the bar billet, and second homogenization treatment is carried out; the bar billet is transferred to a press machine to be drawn out, and the drawn-out bar billet is subjected to fourth-time annealing treatment; and forging or hot rolling is carried out according to requirements, and the strip-shaped structure controllable plate or bar is obtained. According to the method, segregation can be reduced to the maximum extent, and generation of banded structures is controlled.

The invention discloses a polyformaldehyde modified material and a preparation method thereof. Comprising the following components in percentage by weight: 75.80 to 88.89 percent of co-polyoxymethylene resin, 9.0 to 21.3 percent of thermoplastic polyurethane, 0.89 to 1.95 percent of an inorganic nano material, 0.29 to 0.34 percent of an antioxidant, 0.13 to 0.15 percent of a lubricant, 0.10 to 0.12 percent of a formaldehyde absorbent and 0.43 to 0.68 percent of a compatilizer. The polyformaldehyde modified material is prepared by drawing, cooling, granulating and drying the materials in a twin-screw extruder through a two-step melt blending method, the notch impact strength of the polyformaldehyde modified material can reach 16.83 KJ / m < 2 >, the nominal strain at break can reach 66%, and the bending modulus can reach 1720 MPa. The polyformaldehyde modified material has good comprehensive mechanical properties, greatly improved toughness, and good and balanced other properties such as strength and rigidity.

The invention provides a page data processing method and device and a storage medium, and the method of a source server side comprises the steps: in response to a page request of a terminal, obtaining page source data specified by the page request and the current performance information of the terminal; determining the amount of rendering resources required by the page source data according to user information carried in the page request; if the rendering resource quantity is smaller than or equal to the preset resource quantity threshold value, a page rendering mode suitable for the page source data is decided according to the current performance information and the user information, and corresponding page data is returned to the terminal. According to the method and the device, the effect of timely selecting the appropriate page rendering mode based on the terminal performance, the user characteristics and the own rendering overhead, balancing the server overhead and the user experience is realized, and the resource utilization rate is improved.

The utility model relates to the field of heat dissipation structures of servers, in particular to a heat dissipation structure of a micro server, which comprises a shell, a mounting chamber is arranged in the shell, heat dissipation fins are arranged on the outer wall of the shell, the thickness of the heat dissipation fins is gradually reduced from one end close to the outer wall to the other end, and a CPU and a heat conduction piece are arranged in the mounting chamber. The heat conduction piece is arranged between the CPU and the side wall of the shell provided with the heat dissipation fins. The heat dissipation structure of the micro server has the advantages of being good in heat conduction effect and high in efficiency, not only balancing performance, but also reducing energy consumption, and guaranteeing working performance of equipment.

Al, Co, Cr, Ni, Nb, Ti, Zr and C powder are selected as cladding powder, the particle size of the C powder is 325 meshes, the particle size of the other powder is 100-200 meshes, the molar ratio of the Al powder to the Co powder to the Cr powder to the Ni powder to the Nb powder to the Ti powder to the Zr powder to the C powder is 1: 1: 1: 1: 1: 3: 1: 3: 1: 3: 1.5, laser cladding is conducted on preset powder on a base material, and laser cladding parameters are that the power is 800-1500 W, the scanning speed is 10-25 mm / s, the light spot diameter is 2-3 mm, and the laser cladding time is 2-3 h; and the lap joint rate is 20-50%. According to the method, special alloy powder and laser cladding parameters are adopted, multi-element carbide can be synthesized in situ, and the hardness, wear resistance and high-temperature oxidation resistance of the high-entropy alloy coating and the Q235 steel matrix are effectively improved.

According to the multi-mode network flow prediction system, the flow detection module detects data parameters of a multi-mode sub-network, the data parameters enter the flow acquisition module after data cleaning, Z-score parameter anomaly detection and chi-square test, anomaly detection and classification are performed according to a threshold value, a change rate and duration of the flow parameters, when flow is abnormal, adjacent sub-network flow parameters are acquired, and the flow of the adjacent sub-network is predicted. Verifying the credibility of the abnormal traffic; the historical traffic acquisition module calls historical traffic data of the same sub-network and sets weights according to the time sequence and the space sequence; the traffic prediction module adopts a time sequence analysis method to predict the traffic trend of the sub-networks, adopts a data fusion algorithm to integrate and process the traffic of the plurality of sub-networks, predicts the total traffic, enters the resource optimization module, and adopts a congestion control algorithm to optimize the performance of the sub-networks and judge the used resources and residual resources of the adjacent sub-networks; and one sub-network link is selected to be distributed to an adjacent sub-network link for optimizing task configuration, so that sub-network flow balancing is realized.

The invention belongs to the field of gas technical purification, and particularly relates to a honeycomb-shaped high-concentration NO2 adsorption trapping material as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) preparing adsorbent slurry by taking high-silicon molecular sieve raw powder as a raw material; (2) putting a honeycomb carrier into the adsorbent slurry for dipping and coating; and (3) naturally airing, drying and roasting the impregnated carrier to obtain the integral honeycomb-shaped high-concentration NO2 adsorbing and trapping material. On the basis of the honeycomb-shaped high-concentration NO2 adsorption trapping material (the molecular sieve silica-alumina ratio is 1000-5000), NO2 is efficiently trapped through a pressure swing adsorption technology, meanwhile, the adsorbent subjected to adsorption saturation is reversibly regenerated, high-concentration NO2 desorbed gas is obtained, NO2 recycling is achieved, NOx tail gas of a nuclear industry post-treatment plant is recycled, and the purpose of recycling the NOx tail gas of the nuclear industry post-treatment plant is achieved. A stable NO2 gas source is provided for a spent fuel post-treatment main process, the dual requirements of NO2 raw material preparation and tail gas denitration of a post-treatment plant are met, and purification and recycling of NO2 are achieved.

The utility model provides a power supply circuit, a power supply system and a charging pile. The power supply circuit comprises N power modules and N power output ends, wherein N is greater than or equal to 4; the power output ends are in one-to-one correspondence with the power modules, and the power output ends are electrically connected with the corresponding power modules through the electric connecting pieces; wherein one electric connecting piece is connected with at least one other electric connecting piece through the switch element; the number of the switching elements is M, and the # imgabs 0 # imgabs 1 # switching elements are configured to be switched on or off through the switching elements. The control module is used for controlling the power modules to which the two electric connecting pieces connected with the control module belong to output electric power to the same power output end or controlling the power modules to which the two electric connecting pieces connected with the control module belong to respectively output electric power to respective corresponding power output ends; the power output end is configured to output electric power to electric equipment. According to the power supply circuit, the number of the switch elements is limited to be # imgabs2, so that the performance and the cost of the power supply circuit provided by the embodiment of the utility model are more balanced.

The invention discloses a hot rolled steel coil for a supercritical carbon dioxide conveying pipeline and a production method of the hot rolled steel coil. The steel coil comprises the following chemical components in percentage by weight: 0.03 to 0.05 percent of C, 0.10 to 0.30 percent of S i, 1.20 to 1.40 percent of Mn, less than or equal to 0.010 percent of P, less than or equal to 0.002 percent of S, 0.030 to 0.050 percent of Nb, 0.005 to 0.020 percent of T i, 0.20 to 0.40 percent of Cr, 0.10 to 0.25 percent of N i, 0.020 to 0.050 percent of Al and the balance of Fe and inevitable impurities. The Nb-Ti-Cr-Ni alloy components and the TMCP rolling technology are adopted, the thickness of a steel coil is 10-15 mm, the steel coil has good strength, low-temperature toughness and carbon dioxide corrosion resistance, the impact energy at the temperature of-60 DEG C is larger than 300 J, the corrosion rate is smaller than 0.125 mm / a, and the requirement for the steel for the supercritical carbon dioxide conveying pipeline is completely met.

This application relates to the field of organosilicon polymer materials, specifically disclosing a method for preparing and applying a functionalized MQ silicone resin. A method for preparing a functionalized MQ silicone resin includes the following steps: (1) raw material pretreatment; (2) simultaneous addition reaction: mixing and reacting a hydrogen-containing MQ silicone resin, a terminal olefin monomer containing a benzocyclobutene functional group, and a terminal olefin monomer containing a C-F bond; (3) post-treatment to obtain the functionalized MQ silicone resin; wherein the molar ratio of Si-H bonds in the hydrogen-containing MQ silicone resin, C=C bonds in the terminal olefin monomer containing a benzocyclobutene functional group, and C=C bonds in the terminal olefin monomer containing a C-F bond is 1:(0.2-0.6):(0.1-0.4). This application enables the synergistic effect of the rigid benzocyclobutene group and the fluorinated flexible segment, one-step grafting, and structural controllability, ultimately preparing a functionalized MQ silicone resin with excellent dielectric properties, high temperature resistance, low-temperature flexibility, good hydrophobicity, and excellent mechanical strength.

The invention discloses an aluminum alloy foil finishing system, comprising a closed outer box, an inner box, and a pressure roller mechanism, wherein the pressure roller mechanism is composed of a rotatable upper pressure roller and a lower pressure roller, wherein the upper pressure roller is driven to rotate by a driving motor, and the lower pressure roller rotates freely, a heating device is installed in the inner box, an unwinding area and a winding area are arranged in the outer box, an unwinding shaft and an unwinding trimming device are installed in the unwinding area, a winding shaft and a winding trimming device are installed in the winding area, a vacuum device and a nitrogen filling device are connected to the outer box through pipelines, respectively, and the unwinding shaft and the winding shaft are driven to rotate by a motor respectively. The invention can repeatedly finish the aluminum alloy foil, and the finished aluminum alloy foil has uniform performance, a smooth surface, precise thickness control, and small internal stress, and no annealing process is required.

The invention provides a preparation method of a high-performance aging-free high-carbon SWRH82B hot-rolled wire rod, and relates to the technical field of hot rolling, and the preparation method comprises the following steps: feeding a high-carbon SWRH82B steel billet into a heating furnace for heating; carrying out rough rolling on the heated high-carbon SWRH82B steel billet by adopting a large square billet large compression ratio rolling technology under heavy pressure; the high-carbon SWRH82B steel billet subjected to rough rolling is fed into a finishing mill to be subjected to finish rolling; the wire rod obtained after finish rolling is fed into an ultra-long air cooling line to be cooled through ultra-large air volume; the cooled wire rod is fed into a coiling device to be coiled; and the coiled wire rod is inspected and packaged, the high-performance aging-free high-carbon SWRH82B hot-rolled wire rod is obtained, a 134m ultra-long air cooling line and a 280000m / h ultra-large air volume fan are adopted for an ultra-long air cooling line, the cooling speed is increased, and therefore the supercooling degree of austenite is increased, nucleation of ferrite is promoted, ferrite grains are refined, pearlite is refined, and the high-performance aging-free high-carbon SWRH82B hot-rolled wire rod is obtained. And the lamellar spacing of pearlite and the thickness of cementite are reduced, so that the structure is easily converted into sorbite, and the product strength and the performance stability of the same circle are improved.

The present invention relates to a preparation device and preparation method of an electrolytic metal foil, wherein the preparation device of the electrolytic metal foil comprises: an electrolytic cell, a cathode system, an anode system and an insulating partition; wherein the cathode system comprises a rotating device and a cathode; the cathode is located in the electrolytic cell; the rotating device is connected to the cathode to drive the cathode to rotate during the electrolytic deposition process; the anode system comprises an anode; wherein the anode is placed in the electrolytic cell and arranged around the cathode; the insulating partition is placed in the electrolytic cell and is located between the cathode and the anode; the insulating partition is arranged around the cathode, and the anode is arranged around the insulating partition; a plurality of meshes are provided on the insulating partition to adjust the uniformity of the electrolytic metal foil in the width direction by adjusting the aperture and distribution of the meshes. The electrolytic metal foil preparation device of the present invention can ensure the uniformity of the metal foil, and it is small in size, flexible in operation, and can meet industrial production conditions, providing an experimental device for the development of high-performance electrolytic metal foil preparation technology.

The invention provides a TPU (thermoplastic polyurethane) sole surface treating agent. The TPU sole surface treating agent comprises 30-50 parts of a component A, 5-10 parts of a component B, 8-12 parts of a component C, 3-8 parts of a component D and 10-20 parts of a solvent, the component A comprises 20-40 parts of hydrogenated castor oil, 3-5 parts of nano titanium dioxide, 2-4 parts of glass beads, 0.5-1.5 parts of sericite, 1-2 parts of a coupling agent and 2-5 parts of an isocyanate bridging agent; the components are prepared from the following components in parts by weight: 5 to 10 parts of vinyl trimethoxy silane, 2 to 5 parts of polycarbodiimide, 1 to 3 parts of 4-tert-butylcatechol and 1 to 4 parts of azodiformate; the component C is prepared from 1 to 3 parts of carbon nanotubes, 2 to 5 parts of silver nitrate, 0.5 to 1.5 parts of sodium alginate and 10 to 30 parts of ethanol; the component D is camellia oil composite modified waterborne polyurethane; the solvent is low-molecular-weight organic dicarboxylic acid. The TPU sole is subjected to surface treatment by the surface treating agent, so that the coloring performance, oxidation resistance, hydrolysis resistance, hydrophobicity, antibacterial and mildew-proof performance and the like of the TPU sole are remarkably improved.

The present application relates to the technical field of resin, in particular to a conductive polypropylene composite material and a preparation method thereof.In view of the problems of poor processing fluidity, easy shear damage of conductive network and deterioration of mechanical properties caused by high filling of conductive filler in the prior art, the present application realizes the low volume resistivity, high melt flow rate and excellent mechanical toughness by the solid phase pre-coating technology, and effectively balances the conductivity, processability and strength.

The invention discloses a multi-dialect large model adaptation method and system oriented to a Gluggin language, and the method comprises the steps: obtaining corpus data and model constraint information of each Gluggin dialect region, building a dialect mapping matrix, and positioning key semantic difference points; characterization offset features are extracted, contrast training sample pairs are constructed, and vector space analysis is implemented to determine a priority adjustment layer; identifying dialect difference features in the model constraint information to generate layered coding parameters, generating a layered representation structure through collaborative matching of a priority adjustment layer and the layered coding parameters, and determining a weight adjustment boundary; determining a parameter distribution density by combining a weight adjustment boundary and a priority coefficient, generating an optimal migration weight, extracting a negative migration node, converting the negative migration node into a dialect boundary mark, and constructing a gradient propagation path; and detecting the confusion expression set, generating representation decoupling configuration, executing progressive collaborative optimization based on the representation decoupling configuration and the gradient propagation path to output a multi-dialect adaptation scheme, and realizing accurate adaptation and collaborative optimization of the multi-dialect of the Gu-language family.

The invention discloses a rolling mill and a metal composite rolling method, and relates to the technical field of rolling mills for rolling and forming sections. The first rolling mill is used for rolling a composite metal blank; the composite metal blank comprises a double-layer metal blank which specifically comprises an inner-layer blank and an outer-layer blank; the inner-layer blank is arranged in the outer-layer blank and is made of different materials; the section of the inner-layer blank is in a central symmetry shape; the first rolling mill comprises a first rolling hole, and the first rolling hole is an asymmetric oval rolling hole; through the design of the asymmetric oval rolling holes, deformation is distributed more evenly, internal stress concentration is reduced, the size precision and surface quality of products are improved, and under the condition that the rolling hole alignment precision is reduced due to aging or improper maintenance of a rolling mill, the asymmetric oval rolling holes can still keep relatively stable rolling quality and low defective rate.

The embodiment of the application is suitable for the field of artificial intelligence technology, and provides a re-computation training strategy generation method, an electronic device and a computer program. The method is applied to a heterogeneous cluster, and includes: determining cluster information of the heterogeneous cluster and model feature information of a to-be-trained model; determining re-computation time information and re-computation performance requirements of each storage-computing resource in the heterogeneous cluster according to the cluster information and the model feature information; determining a re-computation time information characteristic value in a case where the re-computation performance requirements are not greater than a performance limit value of the storage-computing resource; and determining a re-computation training strategy for the to-be-trained model according to the re-computation time information characteristic value corresponding to each storage-computing resource. The embodiment of the application can determine an adaptive re-computation training strategy for each storage-computing resource of the heterogeneous cluster, and improve the model training efficiency and throughput by using the re-computation training strategy corresponding to each storage-computing resource for model training.

The invention relates to a high red hardness alloy material and a preparation method thereof, belonging to the technical field of alloy materials; the alloy material is composed of an M2 high-speed steel substrate and a cladding layer, wherein the cladding material of the cladding layer is the following components: 52-58wt% of N-tungsten carbide tantalum micropowder, 6.5-9wt% of chromium carbide powder and 3.2-4.4wt% of nickel powder, and the remainder is atomized iron powder; the N-tungsten carbide tantalum micropowder is substituted by diethylenetriamine and cyanuric chloride to prepare a nitrogen-carbon-rich compound cluster, i.e., a template agent; the complexation of a multi-component nitrogen structure in the template agent structure is utilized to capture tungsten and tantalum elements in a liquid phase environment, and high-temperature hydrolysis is performed to form a composite, i.e., a precursor; during a sintering process in a plasma sintering furnace, the template agent is thermally decomposed to form a composite carbide with tungsten and tantalum; the decomposed nitride is in-situ nitrided and doped with the composite carbide at a high temperature to form nitrogen-doped tungsten carbide tantalum particles; and the hardness of the cladding layer reaches 63.9-65.1HRC.

The invention discloses an anti-radiation metal layered composite material and a preparation method thereof. The preparation method comprises the following steps: smelting and casting an Al-3. 5Cu-2Mg-Ni alloy cast ingot; the Al-3. 5Cu-2Mg-Ni alloy cast ingot is subjected to homogenization treatment, hot rolling and annealing; the annealed Al-3. 5Cu-2Mg-Ni alloy cast ingot and a tantalum-tungsten alloy plate are subjected to composite rolling, and the anti-radiation metal layered composite material is obtained; wherein the Al-3. 5Cu-2Mg-Ni alloy ingot comprises the following components in percentage by weight: less than or equal to 0.5% of Si, 0.2-0.6% of Fe, 3-3.8% of Cu, less than or equal to 0.05% of Mn, 1.8-2.4% of Mg, 0.8-1.2% of Ni, less than or equal to 0.3% of Zn, less than or equal to 0.5% of Ti, less than or equal to 0.05% of single content of other elements, less than or equal to 0.15% of total amount and the balance of aluminum. According to the Al-3. 5Cu-2Mg-Ni alloy disclosed by the invention, a certain amount of Cu, Mg and Ni are added into the Al-3. 5Cu-2Mg-Ni alloy, so that the resistance of the alloy to extranuclear electrons is improved, precipitated phases such as Al2Cu and Al2CuMg can be formed in the aging process, and the aging strengthening effect is improved.

The invention relates to the field of composite materials, in particular to conductive aramid fiber and a preparation method thereof.The preparation method comprises the following steps that S101, an aramid fiber sample is subjected to first treatment, and first aramid fiber is obtained; s102, obtaining a second aramid fiber; s103, obtaining a third aramid fiber; s104, obtaining a fourth aramid fiber, namely the conductive aramid fiber; wherein the aramid fiber sample is aramid fiber III. According to the method, the aramid sample does not need to be subjected to roughening treatment, the surface of the aramid sample is stably combined with the nanogold layer through amide group modification, residual modification liquid treatment, metal nanolayer preparation and chemical deposition method metal layer plating, the metal layer is not prone to falling off, the whole process is simple and easy to implement, operation is convenient, economical and environmentally friendly, large-scale production is easy to achieve, and the method is suitable for industrial production. Meanwhile, the mechanical property of the aramid fiber sample is hardly influenced, and the original strength and performance of the aramid fiber sample are kept.