94 results about "Spread rate" patented technology

The invention relates to a spread method of a polycrystalline silicon solar cell. The spread method is characterized in that the spread method comprises the following processing steps of entering a boat, warming, oxidizing, spreading, redistributing, cooling and going out the boat, wherein the spreading step comprises low temperature pre-deposition and then high temperature spreading. Reaction between a phosphorus source and a silicon wafer cannot be completed under low temperature, so that the low temperature pre-deposition is carried out on low temperature source communication at a first step of spreading, the phosphorus source cannot spread (or conduct spreading with low rate) inside a silicon wafer, the phosphorus source only accumulates on the surface of the silicon wafer, and a phosphorus film with certain thickness is formed on the surface of the silicon wafer after source communication for certain time; and the high temperature spreading is carried out on high temperature source communication at a second step, phosphorus on the surface of an original silicon wafer is reacted with the silicon wafer and spreads to the inside of the silicon wafer, and spreading rates of the center point and the periphery of the silicon wafer are same. Therefore, spreading uniformity is good, concentration distribution of impurities on the surface of the silicon wafer and inside the silicon wafer body is even, sheet resistance uniformity is improved, and final photoelectric conversion efficiency of a cell sheet is improved accordingly.

The invention relates to a flame detection method based on a video image and solves the defects of the existing fire monitoring method. The method comprises the following steps that: the video image is acquired first, color detection is conducted to the video image according to the spatial domain features of a flame, a flame color region in the video image is extracted, and motion detection is conducted to the acquired video image according to the spatial domain features of the flame to realize the extraction of a motion region in the video image; pixel-by-pixel AND operation is conducted to the obtained flame color region and the video motion region, and spread rate analysis is conducted to exclude the interference of flame analogues and to obtain a final flame pixel region; and shake analysis is conducted to the final flame pixel region and finally the alarm confirmation of the flame is conducted. From the spatial domain and the time domain, in combination with the flame color detection method and the motion detection method to obtain a suspect fire region, the method realizes the accurate detection and extraction and the automatic tracking and alarm of the flame, and provides strong method supports for the intelligentization of fire monitoring devices.

The invention relates to a method for determining the spreading rate of paper-process reconstituted tobacco finished products, which belongs to the technical field of reconstituted tobacco. The method includes steps: a, taking a certain quantity of paper-process reconstituted tobacco and a sheet base to be shredded, and the placing the tobacco shreds into a constant-temperature and constant-humidity box with the temperature of 22 DEG C and the humidity of 60% to balance for 48 hours; b, weighing a certain quantity of reconstituted tobacco shred samples m1 to be placed in a solvent cup of a Soxhlet extractor, adding distilled water according to feed to liquid ratio of 1:30, and setting the circulation times of the Soxhlet extractor to be 10 times, and the extracting temperature to be 19-level and the temperature of a condensing circulation pump to be 2 DEG C to extract; c, taking out the samples after extraction is finished, transferring the samples into an aluminum box reaching the constant weight of m0, placing the aluminum box into a drying oven, drying the samples at the temperature of 100+/-1 DEG C so that the constant weight of the aluminum box is m2, realizing the precision of the constant weight to be 0.001g, determining moisture content w of the samples, and extracting the sheet base of the reconstituted tobacco by the same method; and d, calculating the spreading rate according to a formula. The method has the advantages that the method is simple, and is applicable to determining the spreading rate of the paper-process reconstituted tobacco finished products.

An improved collapsible spreader with a spread rate selection mechanism including a knob and a rotatable cup-shaped structure. The cup-shaped structure includes an elongated setting tab and a thirty-six step edge corresponding to thirty-six spread rate settings on the knob. Operatively engaged with the cup-shaped structure is an abutment tab that is part of a closure structure for blocking and selectively unblocking a hopper opening. The tab engages the setting tab to define the adjustable length of the closure structure. Thereafter, abutment rate selection is a function of the rotatable position of the cup-shaped structure. Engagement of the abutment tab and a step defines the size of the hopper opening and thus the amount of product released from the hopper during operation. The spreader also includes a dual spring arrangement to bias the closure structure to a closed position and to prevent breakage. The disclosed spreader also features a one piece wheel to reduce parts and assembly costs.

The invention discloses a network virus transmission behavior modeling method. The method comprises a network initialization process, a virus transmission process, a node detection process, an immunization and immunization failure process, a model evaluation process and an immunization strategy proposing process. When a model runs, an infected state (I) node transmits a virus to a neighbor node at certain probability; an infectious state (S) node is infected into the infected state (I) node by the virus at the certain probability; meanwhile, the infected state (I) node is isolated at the certain probability, and becomes an isolated state (Q) node which does not have the virus transmission capacity and cannot be infected; and an immune state (R) node which cannot be infected by the virus appears in the model through treatment on the isolated state (Q) node and immunization on all nodes. The factors affecting virus transmission in the SIOR model include total node number n, average node degree <k>, initially infected node number n<0>, virus transmission rate alpha, isolating treatment rate beta and isolating recovery rate lambda; and the cured node has immune efficacy probability mu, vaccine injection rate gamma and vaccine failure rate eta. An achievable immunization strategy is proposed on the basis of these factors.

The invention relates to a machining technology for improving the fatigue damage resisting performance of a 2xxx aluminum alloy plate. The machining technology comprises the following steps that 1, alloy is subjected to burdening smelting and is cast into an ingot casting; 2, the ingot casting is sequentially subjected to homogenization treatment, surface milling and aluminum cladding, preheating is carried out, and a hot rough-rolled plate is manufactured; 3, the hot rough-rolled plate is subjected to hot finishing and cold rolling deformation to the thickness of the finished plate; 4, recrystallization pre-annealing treatment is carried out, temperature is raised to 300-450 DEG C at the average speed of 10-300 DEG C/h or within 1.0-45 h, and heat preservation is carried out for 1-20 h; 5, solid solution hardening treatment is carried out, the solid solution temperature is 480-505 DEG C, and heat preservation time is 3-60 min; and 6, the plate is straightened, and natural ageing is carried out to the stable state. According to the machining technology, recrystallization pre-annealing treatment is added so that the L-ST section grain average equivalent diameter and grain length-width ratio of the plate can be effectively controlled, and the tensile mechanical property and fatigue crack spreading rate of the plate can both meet the AMS 4296 aviation standard requirement.

The disclosure relates to a live streaming playback method and device. The method includes the steps of receiving marking operations of a user of at least one video fragment during live streaming on a cloud director platform during a video live streaming process, and after live streaming ends, generating playback on the basis of the at least one video fragment marked during live streaming. Playback is generated selectively according to the marked video fragments when the live streaming process is too long. Therefore, live streaming can be edited quickly and conveniently, playback can be generated, wonderful moments of live streaming activities can be effectively recorded, and the secondary spreading rate of playback can be increased.

The invention relates to a heat treatment method capable of improving the anti-fatigue performance of Al-Cu-Mg alloy. The method comprises the following steps: performing intermediate annealing on a cold-rolled plate at the temperature of between 300 and 440 DEG C for 20 to 120 minutes; performing solution hardening treatment at the temperature of between 475 and 505 DEG C for 10 to 120 minutes; and naturally ageing at room temperature for at least 100 hours. The Al-Cu-Mg alloy comprises the following components: Cu, Mg, Mn, Ti and Al. The process method is simple and reasonable. By the intermediate annealing heat treatment process, the Gauss texture score of the alloy is increased, and orientation of most of crystal faces {111} of crystal grains of the cold-rolled Al-Cu-Mg alloy is positioned or close to the direction of the maximum external shearing stress, so that reciprocating sliding dislocated under the action of alternating stress is promoted, the closed effect of fatigue crack is improved, the spreading rate of the fatigue crack is reduced, and the alloy has excellent stress corrosion resistance and anti-stripping corrosion fatigue performance and is suitable for industrialized application.

An applicator being constructed to include a thermoplastic elastomer. In another embodiment, an applicator dome has a first material and a second material, wherein, the first material is made of a thermoplastic elastomer and the second material is made of a material having more rigidity than the first material. The second material provides structural support for the first material. In yet another embodiment, an applicator dome has a first material and a second material, wherein, the first material has a Dimethicone Droplet Spread Rate value from about 200 mm2 to about 900 mm2. In yet another embodiment, an applicator dome has an inward-deflection value of at least 0.17 mm2. This embodiment may also include an outward-deflection value ranging from 0.000 mm to about 0.40 mm. In yet another embodiment, an applicator dome has a wet-drag value ranging from about 300 mJ to about 600 mJ. In yet another embodiment, an applicator dome has a dry-drag value ranging from about 500 mJ to about 3000 mJ. In yet another embodiment, an applicator dome has an increase in wet-drag value of at least 150 mJ after four product application strokes onto an application surface.

A method and device for predicting popularity by setting various criteria of popularity of social data spread over a social network service (SNS) including: a data collecting unit to collect previous data created during a predetermined time and created in real time from data storage associated with an SNS, a data popularity prediction resource building unit to extract user information and data information from the previous data created during the predetermined time and build a social data popularity prediction resource using the extracted user information and data information, and a popularity predicting unit to predict popularity of the social data created in real time using the data information and the user information extracted from the data created in real time and the built popularity prediction resource, in which the predicted popularity includes predicted values of at least two items among a spread amount, a popularity time, and a spread rate.

A heat treatment method for improving fatigue resistance of Al-Cu-Mg alloy comprises: performing high-temperature short-time (505-535 DEG C/1-25 min) solution hardening treatment on cold-rolled sheets, then performing natural aging at room temperature for 96 h or more. The aluminium alloy capable of being treated by the heat treatment method comprise the components: Cu, Mg, Ti and Al. The technology is simple and reasonable; and through high-temperature short-time solution hardening treatment, the alloy obtains relatively high goss texture components. Because most of crystal faces {111} of crystal grains in the alloy with high goss texture is positioned or close to the direction of the maximum external shearing stress, the reciprocating sliding of dislocation is promoted and a persistent slip band is easy to generate in the alloy, and thus the plasticity induction closure effect of fatigue crack is enhanced and the damage accumulation is reduced, also the crack deflection is promoted, and thus the fatigue crack spreading rate of the alloy is reduced and the fatigue resistance of the alloy is improved.

The invention relates to a processing method of alloy surface micro-cracks. The aimed micro-crack size range is that the depth is smaller than 0.8 mm, the width is smaller than 0.2 mm, and the length is smaller than 2 mm. A compressive stress layer is formed on the periphery of the alloy surface cracks by using liquid shot-peening repair method, so that micro-cracks with lower depth are eliminated directly, the size of cracks with deeper depth become small, closure effects are produced, spreading rate of the surface micro-cracks is effectively reduced, the surface rigidity and toughness are increased, and components serve continuously; and deformation of alloy after processing is small, and the surface fineness is high. The method is applied in the repair of alloy surface micro-cracks, the operation of the device is flexible, and the process is simple; and limits to workpiece size, operation site and space are small, the processing efficiency is high, energy is saved, and the method is clean and pollution-free.

The invention discloses a papermaking tobacco sheet pulp grinding process. Specifically speaking, under the light beating condition, three-stage light beating flexible pulp grinding is adopted, each stage needs at least two pulp grinding machines, pulp concentration is decreased gradually, and size circulation process is controlled. In prepared size, fibers with the length of 0.5-1.25mm reach more than 63%, bulk degrees of base tabs reach 2.8-3.0cm <3>/g, spreading rates, filling values, burning velocity of finished sheets are improved greatly, tar contents and carbon oxide contents are reduced greatly, and the bulk degrees of the finished sheets reach 2.3-2.5cm<3>/g. The number of pulp grinding machines arranged in the first stage, the second stage and the third stage in a serial connection mode is respectively 4, 3 and 2. The pulp grinding concentration in the first stage, the second stage and the third stage are respectively set to be 4.5-5.0%, 4.0-4.5% and 2.0-2.5%. Times of self-circulation of the size in the first stage, the second stage and the third stage are respectively 1-3 times, 1-2 times and 1-2 times. The times for which mixed size prepared in different components passes through the pulp grinding machines in the whole process are 9-22 times actually, and all nine pulp grinding machines allow constant power regulation independently.

A method of predicting fertilizer performance for optimum efficiency of a fertilizer is described. The method of conducting a computerized fertilizer performance analysis is based upon a request including a plurality of parameter requirements entered on a client computer. A routine is then performed to analyze the plurality of parameter requirements. The routine may be performed by a software program, such as on a provider computer via the Internet, on a CD-ROM inserted into the client computer or downloaded onto the client computer. Upon completion, the fertilizer performance analysis results are received by the client computer and preferably include re-application time, nutrient release indicator, amount of nutrients released, fertilizer nutrient release rate, suggested fertilizer application rate, percent quick release, average nutrient release per time interval, cumulative nutrient release, nutrient longevity, fertilizer spread rate, total amount of fertilizer required or any combination thereof.

The invention discloses a method and device for detecting the spreading rate of a papermaking-method reconstituted tobacco product and relates to the field of reconstituted tobaccos.According to the method for detecting the spreading rate of the papermaking-method reconstituted tobacco product, and the spreading rate corresponding to the absorbance is determined according to a corresponding working curve by detecting the absorbance of a papermaking-method reconstituted tobacco product leaching liquor under specific wave length, namely the spreading rate of the papermaking-method reconstituted tobacco product is obtained.Due to the fact that the absorbance of the papermaking-method reconstituted tobacco product leaching liquor under the specific wave length and the spreading rate corresponding to the absorbance have linear relation, the spreading rate of the product can be conveniently, quickly and accurately obtained by detecting the absorbance of the product leaching liquor, and accordingly the method facilitates the production process monitoring of papermaking-method reconstituted tobaccos and determination of the spreading rate of a finished papermaking-method reconstituted tobacco product.

The invention provides a resource pushing method and device, electronic equipment and a readable storage medium, and relates to the technical field of resource pushing. According to the embodiment ofthe invention, the method comprises the steps: the target resource is pushed to the obtained first user group matched with the attribute of the target resource; the pushing result pushed to the firstuser group can be determined after pushing; and according to a pushing result of the first user group, the click user group which is actually interested in the target resource can be determined from the first user group; further, the monitoring information is sent to users in the monitoring information base; the target user group similar to the historical behavior of the click user group is determined according to the historical behavior of the click user group, i.e., more people interested in the target resource are expanded by clicking the user group, and the target resource is pushed to thetarget user group, so that the pushing accuracy of the target resource can be improved while the pushing spreading rate of the target resource is improved.

The invention relates to a traditional Chinese medicinal prescription for treating acute conjunctivitis and a preparation method thereof, and belongs to the technical field of medicines. The invention provides a traditional Chinese medicinal prescription for treating acute conjunctivitis. The prescription consists of the following raw materials in parts by weight: 10-15 parts of senecio scandens, 10-15 parts of common scouring rush herb, 5-10 parts of cassia seed, 6-10 parts of fructus viticis, 5-10 parts of chrysanthemum, 8-14 parts of mulberry leaf, 8-15 parts of self heal, 3-5 parts of golden thread, 5-9 parts of dandelion, 5-10 parts of Chinese violet, and 5-9 parts of folium isatidis. The traditional Chinese medicinal prescription for treating acute conjunctivitis is prepared by scientific compatibility according to pathogenesis, has the functions of clearing heat and removing toxicity, diminishing inflammation and removing internal fire, cooling and activating blood and the like, and is quick in response, short in course of treatment and high in cure rate, so that the patient immunity can be improved, patients can be quickly recovered to normal work and life, the spreading rate is reduced, and the body health of surrounding people can be guaranteed.

The invention discloses a disinfection solution, which is characterized in that the solution has the following components based on weight proportion: 50-100PPM of nano-silver ions, 1-5% of polyvinylpyrrolidone, 1-5% of polyethylene glycol, and the remaining water. As the anti-bacterial rate is up to 99.99%, the invention can effectively kill, resist and inhibit Staphyloccocus aureus Rosenbach, Escherichia coli and other 650 kinds of bacteria and viruses to reduce the spreading rate of disease, and can be used in the disinfection of various environments.

Disclosed is a rapid determining method for the spreading rate of paper-making method reconstituted tobacco production.A front part coating base and a rear finished product coating sample of a coating machine for paper-making method reconstituted tobacco production are taken respectively and dried at the same time through a paper sheet panel drier, the dried samples are taken out and weighed, and the spreading rate of reconstituted tobacco is calculated.According to the method, detection equipment can be placed near the coating machine for rapid detection, operation is easy and convenient, the detection period is short, and the measuring result is high in repeatability.

The invention discloses an electric pulse treatment method for lowering the fatigue crack spreading rate of steel materials, and belongs to the technical field of fatigue life of high-strength steel materials. Through the method, the steel materials with fatigue cracks are subjected to electric pulse treatment, the fatigue crack spreading rate of the steel materials is lowered, and thus the fatigue life of the materials is prolonged. In the electric pulse treatment process, the electric pulse discharge waveform is in a damped waveform, the discharge period is 400 ns, treatment is conducted twice, the first treatment working voltage is 9-10 kV, and the second treatment working voltage is 10.5-12 kV. The method can be used for research and engineering application of crack arresting, crack healing and fatigue damage repair and fatigue life prolonging of the high-strength steel materials.