81results about How to "Easy to multiply" patented technology

Let us consider a message M an element (m1,m2, . . . ,mk) in a Galois field GF (2k), and multiply it by a product of polynomials beta 1(alpha)-alpha t(alpha) into M(alpha).<paragraph lvl="0"><in-line-formula>M(alpha)=Mbeta1(alpha).Mbeta2(alpha) . . . Mbetat(alpha)</in-line-formula>Combine a noise vector r(alpha) of n-k to M(alpha) in series so that the data is expanded into degree n. Next, they are transformed into Γ by permutation. Γ is multiplied by an element gammax in the Galois field GF(2n) into cyphertext C(M), where gamma is a primitive root of the multiplicative group of the Galois field GF(2n). Practically, when the message M is substituted for X in a public key C(X), the cyphertext C(M) is obtained. The cyphertext C(M) is multiplied by gamma-x, is applied to an inverse permutation, and the noise vector r(alpha) is separated. Then, the inverse element of the product of beta1(alpha)-betat(alpha) is multiplied and is raised to an adequate index. Then the decrypted message is obtained.

A chassis (1) for a motor vehicle has an electrical axle (2) with two electrical machines (4) for respectively driving two wheels (6). The chassis (1) also has a step-down gear mechanism (10, 11) arranged between the respective electrical machine and the associated wheel. Each step-down gear mechanism is connected to the respective wheel by a cardan shaft. The respective rotation axes (5, 5) of the two electrical machines are arranged parallel and next to one another. The chassis enables each wheel to be mounted in a non-rigid manner and permits the overall length of the electrical machines to be varied on account of the arrangement of the rotation axes of the electrical machines.

The invention relates to the field of biological engineering, in particular to a production technology of liquid spawn. The production technology of edible mushroom liquid spawn by adopting a reducing process comprises the following steps of: 1) cultivating, carrying out liquid culture on the edible mushroom liquid spawn on a liquid nutrient medium to obtain mycelium; 2) obtaining a spawn block, namely carrying out pure culture on the mycelium on a PDA (Potato Dextrose Agar) culture medium to obtain the spawn block of the mycelium; 3) smashing, namely smashing the spawn block by adopting a spawn block smashing machine; and 4) diluting, namely diluting the smashed spawn block with sterile water. By adopting the technical scheme, the production technology provided by the invention has the significant advantages of high mycelium content, short liquid spawn cultivation time, less equipment investment, low cost and the like.

The invention discloses an indoor breeding method for drosophila-suzukii-matsumura advantageous parasitic wasps trichopria drosophilae.The indoor breeding method includes the following steps that drosophila pupas in the age of 1 day to 2 days are fed and collected, trichopria drosophilae is parasitized to the drosophila pupas (female trichopria drosophilae and male trichopria drosophilae copulate according to the proportion of 1:1), the trichopria drosophilae is collected, and the indoor breeding procedure is completed.The provided expanding propagation method for the trichopria drosophilae is convenient, economical and prone to standard operation, the trichopria drosophilae can be rapidly and largely subjected to expanding propagation, the technological base is provided for industrial production, and the aim for biological control over insect pests is achieved.

Disclosed is an in-situ detoxification method for a heavily contaminated site by hexavalent chromium. The method includes injecting a chemical reducing agent into a site heavily contaminated with hexavalent chromium, and injecting a chromium soil remediation microbial agent into the site after 0-10 days. The in-situ detoxification method includes: first, in-situ injecting the chemical reducing agent into the soil, preliminarily reducing high-concentration hexavalent chromium such that the hexavalent chromium of high concentration has no toxic effect on the subsequent ecological microbial agent, then in-situ injecting the ecological microbial agent prepared from biogas residue, a carbon source and sulfate into the chromium-containing soil under pressure, and forming a large-scale reducing buffer zone containing sulfate-reducing bacteria and sulfide in a special maintenance manner in the subsurface soil of the site to reduce the hexavalent chromium continuously and effectively.

A multi-ratio transmission system with parallel vertical and coaxial planet gears is provided, including: multiple planet gear sub-systems, a coupling assembly, a setting element, a setting element controller, an annular gear, a cylindrical casing, a sprocket and a central axle. The planet gear sub-systems are disposed coaxially in series along a first axis. Each of the planet gear sub-system includes a sun gear and at least one planet gear. The coupling assembly transmits the rotation between every two adjacent planet gear sub-systems. The setting element optionally engages with the sun gear. The annular gear is engaged to the planet gear and is installed onto a one-way clutch. The cylindrical casing encloses the planet gear sub-systems. The sprocket is installed onto the one-way clutch for connecting an external transmission system. The central axle enables the hollowed tube of the setting element controller to rotate around the central axle.

A multi-ratio transmission system with parallel vertical and coaxial planet gears is provided, including: multiple planet gear sub-systems, a coupling assembly, a setting element, a setting element controller, an annular gear, a cylindrical casing, a sprocket and a central axle. The planet gear sub-systems are disposed coaxially in series along a first axis. Each of the planet gear sub-system includes a sun gear and at least one planet gear. The coupling assembly transmits the rotation between every two adjacent planet gear sub-systems. The setting element optionally engages with the sun gear. The annular gear is engaged to the planet gear and is installed onto a one-way clutch. The cylindrical casing encloses the planet gear sub-systems. The sprocket is installed onto the one-way clutch for connecting an external transmission system. The central axle enables the hollowed tube of the setting element controller to rotate around the central axle.

The invention discloses a production method and a cooking device of a fruit tree organic fertilizer. The method comprises the following steps: crushing trunks and branches of fruit trees into fruit tree particles with the particle size of 0.2-0.6 cm; adding water accounting for 50% of the weight of the fruit tree particles, stirring, and performing high-temperature and high-pressure cooking for 3-10 hours under the condition that the temperature is 1200-3000 DEG C and the pressure is 3-8 kilograms per square centimeter; mixing with zymogen and a nitrogenous fertilizer; and doping probiotics, and bagging. The cooking device disclosed by the invention comprises a sterilizing boiler and a cooking container, wherein the cooking container is positioned in an inner cavity of the sterilizing boiler and is provided with a shell which is enclosed by a side plate and a bottom opening door and has an open top end, a frame is arranged on the outer surface of the shell, both the side plate and the bottom opening door are provided with steam through holes, a traveling wheel is arranged at the lower end of the frame, a traveling rail is arranged in the inner cavity of the sterilizing boiler, the traveling wheel is matched with the traveling rail, and the side plate is matched with the inner wall of the sterilizing boiler. The fruit tree organic fertilizer disclosed by the invention is complete in nutrition and can be used for improving soil; and the cooking device has a good using effect and is convenient to take and place.

A multi-ratio transmission system with parallel vertical and coaxial planet gears is provided, including: multiple planet gear sub-systems, at least two coupling assemblies, a setting element, a setting element controller, an annular gear, a cylindrical casing, a sprocket and a central axle. The planet gear sub-systems are disposed coaxially in series along a first axis. Each of the planet gear sub-system includes a sun gear and at least one planet gear. Each coupling assembly transmits the rotation between every two adjacent planet gear sub-systems. The setting element optionally engages with the sun gear. The annular gear is installed onto a one-way clutch. The cylindrical casing encloses the planet gear sub-systems. The sprocket is installed onto the planet gear sub-systems through the one-way clutch. The central axle enables the hollowed tube of the setting element controller to rotate around the central axle.

The invention discloses an ecological and environment-friendly submerged plant growth promoter as well as a preparation method and an application. The promoter comprises modified medical stone and magnesium peroxide in a certain ratio. The method comprises the steps as follows: 1) clay mineral medical stone is subjected to simple pretreatment modification; 2) the modified medical stone and magnesium peroxide are uniformly mixed in a certain ratio, and the submerged plant growth promoter is prepared. The invention also relates to the application of the ecological and environment-friendly submerged plant growth promoter to water surfaces of lakes or slow flow rivers. The submerged plant growth promoter is environmentally friendly, reasonable in formula, convenient to use and low in cost. Thesubmerged plant growth promoter is ecological and environmentally friendly, can significantly improve the growth rate and quality of submerged plants and effectively solve the problem that submergedplants cannot survive and grow in special habitats and is beneficial to recovery of the ecological environment of water areas, the survival rate of submerged plants reaches 95% or above, and the rootlength, plant height and biomass of the submerged plants are increased by 150%, 80% and 200% respectively or above. Meanwhile, water in remediation areas is improved remarkably, and the water transparency can be improved by 15 cm or above.

The invention discloses a new application of Chromatomyia horticola in propagation of Diglyphus isaea. The new application of Chromatomyia horticola provided by the invention is the application of Chromatomyia horticola in propagation of Diglyphus isaea. The application comprises the following steps: inoculating spawning female Diglyphus isaea on plant seedling infected with larva of Chromatomyia horticola, performing cultivation, and collecting Diglyphus isaea to realize propagation. The application takes Chromatomyia horticola as host; repeatedly researches and improves in technical links of optimal inoculation proportion, key inoculation time, adult Diglyphus isaea collection and storage, etc.; and forms a high-efficiency, economic and simple parasitic wasp propagation technology, to rapidly propagate Diglyphus isaea in large scale, thereby realizing bio-control of pests.

A multi-ratio transmission system with parallel vertical and coaxial planet gears is provided, including: multiple planet gear sub-systems, a coupling assembly, a setting element, a setting element controller, an annular gear, a cylindrical casing, a sprocket and a central axle. The planet gear sub-systems are disposed coaxially in series along a first axis. Each of the planet gear sub-system includes a sun gear and at least one planet gear. The coupling assembly transmits the rotation between every two adjacent planet gear sub-systems. The setting element optionally engages with the sun gear. The annular gear is engaged to the planet gear of at least one planet gear sub-system. The cylindrical casing encloses the planet gear sub-systems. The sprocket is installed onto the planet gear sub-systems through a one-way clutch. The central axle enables the hollowed tube of the setting element controller to rotate around the central axle.

The invention discloses an application of Neoseiulus neoreticuloides Liang et Hu to control of small-sized juice-absorbing pests. The Neoseiulus neoreticuloides Liang et Hu is capable of controlling thrips and assistantly controlling whiteflies and pest mites, and particularly is capable of controlling Frankliniella occidentalis, Odontothrips loti, Bemisia tabaci(Gennadius), Aceria pallida Keifer,Tetranychus truncatus Ehara and Tetranychus urticae Koch. The Neoseiulus neoreticuloides Liang et Hu is easy in massive expanding propagation, thereby being beneficial to control of thrips in China and other small-sized juice-absorbing pests and colonization of natural enemies-predatory mites.

The invention relates to an insect and mite packaging method. The insect and mite packaging method is characterized in that a small amount of water is added in an insect or mite packaging container ora feeding medium with insects or mites and a damp packaging medium are combined, and then packaging is conducted; or after the two methods are combined, the insects or the mites are packaged. Compared with water adding avoiding, by means of the method, the storage life of the insects or mites is better prolonged, survival and proliferation of the insects or the mites are facilitated, and the insect or mite product quality is better ensured.

The invention discloses a high-arsenic-resistance thiocyanide degradation strain and application thereof. The strain is identified as Pseudomonas putida, the number is TDB-1, the strain is preserved in the General Microbiological Center of China Committee for Culture Collection of Microorganisms, and the preservation number is CGMCC NO.21602. The strain has the characteristic of high arsenic resistance, a microbial agent prepared from the strain can effectively degrade thiocyanide in a high-concentration arsenic environment, the degradation speed is high, and the degradation effect is good.

The invention belongs to the technical field of microorganisms, and particularly relates to an environment-tolerant aeromonas hydrophila bacteriophage ZPAH34 and application, and the preservation number of the aeromonas hydrophila bacteriophage ZPAH34 is CCTCC (China Center For Type Culture Collection) NO: M 2022141. The aeromonas hydrophila bacteriophage provided by the invention is separated from the natural environment, has the characteristics of high specificity, strong splitting ability, better temperature and pH tolerance and the like, and can have stronger inhibition and removal effects on a biofilm formed by aeromonas hydrophila. As a bacterial control means, the bacteriophage can reduce the viable count of aeromonas hydrophila in lettuce and fish slices. Meanwhile, the phage provided by the invention can effectively prevent and treat infection caused by aeromonas hydrophila on zebra fish, and has a wide application prospect in aquaculture. The research provides a scientific basis for bacteriophage application research, and also provides a theoretical reference for biological prevention and control strategy development of aeromonas hydrophila.

The invention discloses a vector for recombinant expression of panda follicle-stimulating hormone, an expression system and a preparation method thereof, which relate to the technical field of gene engineering. The vector comprises a first gene for encoding a panda FSH alpha subunit and a second gene for encoding a panda FSH beta subunit, the sequence of the first gene is shown as SEQ ID NO.1, andthe sequence of the second gene is shown as SEQ ID NO.2. By constructing the vector and the expression system for recombinant expression of the panda follicle-stimulating hormone, stable and continuous active expression of the panda FSH alpha subunit, the FSH beta subunit and subunit compounds thereof can be realized. By using the panda-derived follicle-stimulating hormone, the risk of adverse reaction of organisms is reduced, and the breeding and propagation of varieties of rare endangered felines in China, such as giant pandas, small pandas and the like, are facilitated. In addition, the recombinant preparation method is simple and low in cost.

The invention relates to a preying mite feeding and packaging method. The method is characterized by comprising the steps that prey mites are fed, then preying mites are fed on the prey mites, and the preying mites are packaged, wherein the packaging step comprises the substep that a small amount of water is added into a packaging container, or a feeding medium with the preying mites and a humid packaging medium are mixed and then packaged, or the preying mites are packaged by combining the two methods. According to the method, not only can massive propagation of the preying mites be achieved, but also water is not added in the packaging step, so that the storage life of the preying mites is prolonged, survival and reproduction of the preying mites are promoted, and the product quality of the preying mites is guaranteed.