120 results about "Multiplication rate" patented technology

The invention provides to a method for tissue culturing and quick propagation of sugarcane with an intermittent immersion bioreactor, which is characterized in that: the method performs propagation culture and rooting culture by transplanting detoxicated sugarcane plants, serving as materials, cultured by generations from induced sprouts of sugarcane stem tip tissues into the intermittent immersion bioreactor. In the intermittent immersion bioreactor, a culture temperature is 29 DEG C; the illumination intensity is 1,500 Lx and the illumination time is 16 hours; an intermittent culture condition is to culture for 3min every 3h and to root for 3min every 6h; the first generation can be propagated to 40 times; after rooting is completed, a proper hardening plantlet treatment is performed; and plantlets are transplanted and the survival rate is about 85 percent. The set of system is high in automation degree, has a much higher multiplication rate than that of a traditional tissue culture method, saves labour cost and increases economic benefits.

The invention relates to the technical field of agriculture and discloses a microbial type mineral fertilizer and a preparation method of the microbial type mineral fertilizer. The microbial type mineral fertilizer disclosed by the invention comprises the following components by weight: 35-70% of medical stone powder, 10-25% of microbial strains and 20-30% of humic acid or humate or mixture of the humic acid and the humate. According to the invention, a novel microbial type mineral fertilizer is prepared by taking microbial strains (such as bacillus subtilis, bacillus jelly and the like), a mineral fertilizer and humic acid (humate) as raw materials, and the fertilizer can accelerate the multiplication rate of the microbial strains, realize slow release and controlled release of secondary and trace elements and regulate soil nutrients, thereby reducing the incidence rate of diseases of crops and improving the yield of crops.

A secondary Booth-code-based large number multiplier belongs to the integrated circuit design technology field of the public key encryption algorithm. The present invention uses the linear transformation formula B=8a+b to do a secondary coding to the Booth 64 algorithm results generated by the partial product. The multiplier based on the secondary Booth 64code is divided into 3-level pipelining architectures. The first level architecture precomputes the multiplicands of three times with a carry look-ahead adder and at the same time does secondary Booth coding to aj with a weight of 81 and bj with a weight of 80. The second level architecture, consisting of two identical partial products selection and compression arrays, simplifies the partial products of aj and bi respectively. The third level architecture adds the partial products of the second level by an adder. The present invention improves the multiplication rate performance and can be applied to high performance RSA and ECC chips as well as large scale PKI system of servers.

The invention discloses an electrode of a capacitor and a preparation method thereof, and relates to a mixed super capacitor electrode based on polyaniline/directional carbon nanotube composite material and a preparation method thereof. The electrode is characterized by comprising a conductive matrix material and a polyaniline/directional carbon nanotube composite material; and the polyaniline/directional carbon nanotube composite material directly grows on one side or both sides of the conductive matrix material. In the preparation process, by selecting reaction gas and conductive matrix material and controlling chemical gas phase deposition technology, the directional carbon nanotube directly grows on a conductive matrix; then, electrochemical deposition of the directional carbon nanotube is carried out in vitriol solution of prepared hydrochloric acid aniline; and a polyaniline/directional carbon nanotube composite electrode with large power density, good multiplication rate performance, high energy density and long service life for a super capacitor is prepared. The invention has the characteristics of simple preparation process, low cost, easy large-scale production and the like.

The invention relates to a low-temperature treatment method of A/O/MBBR (Anaerobic/Oxic/Moving Bed Biofilm Reactor) municipal sewage. The low-temperature treatment method of A/O/MBBR municipal sewage is used for solving the problem of low nitrification efficiency of the existing sewage treatment method in north because autotrophic nitrifying bacteria are difficult to accumulate in a low-temperature system due to low multiplication rate. The low-temperature treatment method of A/O/MBBR municipal sewage is realized through the following steps of: 1, guiding the municipal sewage to a water inlet pool through primary treatment; 2, guiding the municipal sewage to an anaerobic pool; 3, guiding the municipal sewage to an aerobic I section; 4, guiding the municipal sewage to an MBBR system from the aerobic I section; 5, guiding the municipal sewage to a secondary sedimentation tank from the MBBR system; and 6, guiding the municipal sewage to a sludge hydrolyzing pool from the secondary sedimentation tank. The low-temperature treatment method of A/O/MBBR municipal sewage can be used for the field of winter sewage treatment engineering in northern cities.

The invention relates to a maintenance time prediction method based on a virtual maintenance simulation process and belongs to the technical field of design of auxiliary products of the virtual reality technology. To overcome the defects that a traditional maintenance time prediction method is tedious in calculation and low in visualization degree and manpower and materials are wasted, statistics is performed on maintenance action design simulation rules with the method to determine the compensation time of each maintenance action, then, the maintenance process is simulated through the virtual reality technology, after the simulation, statistics is performed on the number of the maintenance actions in the simulation process, and the maintenance time is predicted according to the compensation time. According to the compensation time, corresponding compensation is performed on the differential value or the multiplication rate between a single actual maintenance action and the virtual operation. The method avoids tediousness and uncertainty of a traditional method in the calculation process, the maintenance time of a new product is predicted objectively and systematically in the early stage of product design through a product model machine, and auxiliary support is provided for the design scheme of the maintenance time of the product.

The invention belongs to tissue culture, in particular to a common head cabbage tissue culture method. The method comprises the process steps of aseptic seedling culture, induction culture, multiplication culture, rooting culture, regeneration seedling transplanting and the like. The method provided by the invention solves the problems that in the prior art, the subculture, the long-time storage and the rooting transplanting and utilization of common head cabbage tissue culture seedlings cannot be favorably realized, and the like. When being adopted, the method has the advantages that callus tissue can grow on cotyledons on a common head cabbage induction culture medium, hypocotyls can be directly differentiated into adventitious buds, the tissue culture seedling multiplication times is 3.8 to 4.6, the growth condition of the tissue culture seedlings is strong, vitrification seedlings are few, the multiplication rate is high, and the rooting rate of the tissue culture seedlings can reach 100 percent, and the like.

The invention discloses high-temperature and high-humidity resistant saccharomyces boulardii and application thereof, and belongs to the field of microorganisms. The preservation number of the high-temperature and high-humidity resistant saccharomyces boulardii disclosed by the invention is CGMCC No.10381; the multiplication rate and maximal biomass (namely final density of thallus) of saccharomyces boulardii strains are significantly higher than those of similar saccharomyces cerevisiae strains; the saccharomyces boulardii has high heat-resistant and moisture-resistant capacities; the saccharomyces boulardii disclosed by the invention can be used as a feed additive; and relatively high activity is stored in the high-temperature and high-humidity treatment processes. According to a saccharomyces boulardii capsule, daily gain, immune organ index, disease resistance, oxidation resistance and immune globulin of broiler chicken can be improved; the saccharomyces boulardii is free of a toxic or side effect on beasts and birds, wide in source and low in price, and can be used as a feed additive instead of antibiotics.

The invention discloses a skin stretching and fixing frame which comprises a bracket and a skin stretching and fixing component, wherein the bracket comprises two supporting rods, and the skin stretching and fixing component comprises a fixing rod I and a fixing rod II; the fixing rod I and/or the fixing rod II are/is in sliding fit with the two supporting rods; and fixing buckles which are in one-to-one correspondence are arranged on the fixing rod I and the fixing rod II. When the skin stretching and fixing frame is used, the skin of an animal model is stretched through the skin fixing buckles, the limbs of the animal model are bound on the bracket through ropes, and the interval between the fixing rod I and the fixing rod II is adjusted by sliding the fixing rod I and/or the fixing rod II, thereby changing the stretching force born by the skin of the animal model; and when the interval reaches the required degree, the fixing rod I and/or the fixing rod II are locked and fixed to keep the skin stretching state stable. The whole device has the advantages of simple structure, easy manufacture and convenient operation, and is suitable for researching and observing the change of biological behaviors such as multiplication rates, growth states and the like of different cells under the condition of different stretching force and pathological and physiological processes and related mechanisms in the healing process of the wound surface of the animal model.

The invention discloses a video multi-speed playing method and system based on voice. When a video file is preprocessed, the method comprises the steps that A, voice information in the video file is read; B, analyzing the voice information, decomposing the video file into a plurality of sub-videos according to the speed of the voice information, and obtaining the speed multiplication rate of eachsub-video segment based on the corresponding voice information; C, forming a speed multiplication description file by utilizing the speed multiplication rate corresponding to each sub video segment; when the video file is played, the method comprises the following steps: step D, loading and analyzing a speed multiplication description file; and step E, when the video file is played to a certain sub-video segment, playing the video file according to the speed rate corresponding to the sub-video segment in the speed description file. According to the method, the speed multiplication rate can beautomatically calculated through the voice in the video, so that a user can watch the complete video at the most appropriate speed multiplication rate which is intelligently changed, the speed multiplication rate can be automatically and intelligently adjusted in the video speed multiplication playing process, manual adjustment of the user is not needed, and the user experience is good.

The invention discloses a tissue culture propagation method for clematis lanuginosa. The excellent effects of high multiplication rate, stable hereditary feature, high reproduction coefficient and vigorous test-tube plantlet growth are achieved through the steps of primary culture, multiplication culture, rooting culture, seedling hardening and transplanting mainly, the germinating rate of the callus of the clematis lanuginosa is up to 98%, the multiplication multiple is up to 5.7 times, the rooting rate is up to 100%, and the final survival rate is up to 96%.

The invention discloses a quick tissue culture breeding and seedling raising method for narcissus tazetta var. chinensis, which comprises the following steps of the selection and disinfection of explants, induction culture, multiplication culture, root induction culture and transplantation rooting. In the tissue culture propagation method for the narcissus tazetta var. chinensis, the complete technical process from the selection of the explants to the transplantation of the explants is accomplished, and bulbs subjected to the multiplication culture are rooted and induced within short time and are transplanted to a perlite substrate for rooting directly, so that test tube seedlings of the narcissus tazetta var. chinensis are not needed to be rooted in vitro; and the steps of induction rooting and transplantation are simplified, the production period is shortened, the cost is reduced, and the survival rate of the transplantation reaches over 92 percent. The method is high in pertinence, simple and easy and high in multiplication rate, produced seed bulbs are high in consistency and few in plant diseases and insect pests, the cost is saved, and the requirements for the industrial production of the narcissus tazetta var. chinensis seedlings can be met.

Provided is a power supply circuit generating a desired voltage by voltage multiplication, and satisfying both a demand to reduce current consumption and a demand to enable operation with a low power voltage at the same time. A power supply circuit of the present invention includes: a voltage generating circuit for generating internal voltages VI1 and VI2 from a power supply voltage VDD; a voltage step-up/down circuit for generating voltages VO1 to VO3 each having a different level by multiplying the internal voltages VI1 and VI12; and a voltage comparison circuit for comparing the voltage VO2 with the power supply voltage VDD. The voltage generating circuit is configured to select one of the internal voltages VI1 and VI2 according to an output of the voltage comparison circuit. Additionally, a voltage multiplication rate of the voltage multiplication circuit is switched according to the output of the voltage comparison circuit.

The invention provides ringlike RNA circ-CCNY and application thereof. The nucleotide sequence of the circ-CCNY gene is as shown in SEQ ID NO: 1; the expression level of the ringlike RNA circ-CCNY is obviously reduced by detecting the expression condition of the circ-CCNY gene in a liver cancer patient; and the multiplication rate of the ringlike RNA circ-CCNY is obviously reduced by comparing liver cancer cells for expressing the RNA circ-CCNY gene with control liver cancer cells. The ringlike RNA circ-CCNY gene and an expression product thereof serve as markers of diagnosing liver cancer, so that diagnosis of the liver cancer is more accurate and quicker, and the ringlike RNA circ-CCNY gene as a target gene for preparing drugs capable of curing the liver cancer provides a new therapeutic target and therapy pathway for curing the liver cancer.

The invention discloses a method for determining a coaxial configuration micro-discharging threshold value. The method comprises the following steps of: determining an electronic movement locus and an electronic movement speed in a coaxial structure; converting probability of an emergence speed satisfying Maxwellian distribution into a joint probability density function of transit time; respectively carrying out maximum value and monotonicity processing to four classes of probability density functions to obtain a processed joint probability density function; taking an electron collision kinetic energy as an incidence electron energy of a secondary electron emission characteristic of a material to obtain a secondary electron multiplication function generated during electron collision under the transit time; constructing a steady-state equation which satisfies the electron number during micro discharging; judging whether a voltage generates micro discharging by solving an effective secondary electron multiplication rate in the steady-state equation; and gradually calculating an effective multiplication rate of a next voltage with a bisection method, wherein a corresponding voltage is a micro-discharging threshold value when the effective multiplication rate is 1. According to the method disclosed by the invention, an accurate micro-discharging threshold value can be obtained, and meanwhile, the threshold value can be quickly obtained.

The invention provides a rooting culture method for pear test-tube plantlets and a culture medium, and belongs to the technical field of plant cell engineering. The rooting culture method comprises the following steps: carrying out multiplication culture, strong seedling culture, induced rooting culture and large-amount rooting culture in sequence based on pear test-tube plantlets; the induced rooting culture step comprises the following sub-steps: sequentially inoculating tissue culture seedlings obtained after the strong seedling culture into a rooting culture medium A and a rooting culture medium B to be cultured to obtain rooting seedlings; and the large-amount rooting culture step comprises the following sub-steps: inoculating the rooting seedlings into a rooting culture medium C to be cultured, wherein the rooting culture medium A is a culture medium obtained by adding IAA, BA and NAA into a 1/4QL culture medium, the rooting culture medium B is a 1/4QL culture medium and the rooting culture medium C is a liquid culture medium obtained by adding IBA into a 1/3MS culture medium. The invention further provides the culture medium used in the method. By using the rooting culture method provided by the invention, the rooted test-tube plantlets with the relatively high multiplication rate, rooting rate, average rooting quantity and the relatively long average root length can be obtained.

The invention discloses a fireproof paint, a preparation method and application thereof, and belongs to the field of fireproof material. The raw material components of the fireproof paint comprise sterile water, ammonium polyphosphate, melamine, dipentaerythritol, acetic styrene-acrylic emulsion, titanium dioxide, kaolin, wollastonite powder, vermiculite and graphite. According to the fireproof paint provided by the invention, the expanded multiplication rate of the fireproof paint can reach 15-30 times; a formed carbon layer is adamantine and compact and meanwhile will not fall down from a steel girder; and the fireproof time is increased. The fireproof paint solves the problem that the expanded multiplication rate of expansive type fireproof paints is low, and perfectly integrates chemical reaction expansion with physical expansion.

The invention provides a catalpa tissue culture rapid propagation method, and relates to the technical field of plant tissue culture. A catalpa tissue culture medium comprises a primary culture medium, a proliferation culture medium and a rooting culture medium. The primary culture medium and the proliferation culture medium are Qj culture mediums: N6+6-BA 1.25 mg/L+IBA 0.07 mg/L+ agar 6.5 g/L+ sucrose 30g/L, and the rooting culture medium selects a Qg culture medium: 1/2MS+6-BA0.01mg/L+IBA 0.5mg/L+ agar 6.5g/L+ sucrose 15g/L. The method catalpa tissue culture rapid propagation method using the catalpa tissue culture medium includes the following steps: 1) obtaining sterile seedlings, to be more specific, selecting new shoots, treating the lengths, cleaning, disinfecting, sterilizing, cutting, inoculating into the Qj mediums, and cultivating to obtain sterile seedlings, 2) performing proliferation culture, to be more specific, treating the lengths of the sterile seedlings, transferringthe sterile seedlings to the Qj mediums, and cultivating to obtain subculture seedlings; 3) performing rooting culture, to be more specific, treating the subculture seedlings, inoculating the subculture seedlings into the Qg culture medium, and cultivating to obtain rooted seedlings; and 4) hardening seedlings and transplanting, to be more specific, transferring the rooted seedlings to a greenhouse for hardening the seedlings, transplanting the seedlings to an aperture disk, and transplanting after cultivation. The catalpa tissue culture rapid propagation method has the beneficial effects that effective multiplication rate of rooting culture is high, seedling rate is high, and factory production can be facilitated.

An anaerobic ammonia oxidation reactor device structurally comprises a water storage pond, a water feed pump, a water sealing device, a constant temperature device, a graphite electrode, an anaerobic ammonia oxidation reactor, a stirring paddle, a flat sheet membrane assembly, a direct current power supply, a stirring and rotating motor, an alternative current power supply, a membrane module water producing pump, a sample connection, a flat sheet membrane assembly flow channel, a sealing ring, a water producing pipe, a flat sheet membrane, a flow channel supporting plate and a PLC. A direct current electric field is arranged in the device, the existing characteristic of anaerobic ammonia oxidation bacteria is enhanced, the multiplication rate of the anaerobic ammonia oxidation bacteria is improved, the treatment efficiency is improved, management is convenient, adjustability is strong, and the anaerobic ammonia oxidation reactor device is resistant to impact load.

The invention discloses a method of a tissue culture of iris ensata. The good effects of quick multiplication rate, stable hereditary feature, high reproduction coefficient and exuberant test-tube plantlet growth are reached mainly through the steps of primary culture, secondary culture, multiplication culture, rooting culture and hardening-plantlet transplantation during a tissue culture process, a germinating rate of a callus of the iris ensata is up to 96%, the multiplication multiple is up to 4.35 times, the rooting rate is up to 100%, and the transplanting survival rate is up to 98%.