99results about How to "Many cycles" patented technology

The invention relates to an additive which can be added to buffers used in nucleotide detection processes and improved methods of nucleic acid sequencing using this additive. In particular the invention relates to use of the additive to improve the efficiency of fluorescence-based multiple cycle nucleic acid sequencing reactions.

The invention discloses a preparation method of a noble metal-loaded activated carbon fiber monoatomic catalyst for catalytic degradation of VOCs at room temperature. The method includes the steps of:(a) pretreatment of a carrier: immersing activated carbon fiber in a sulfuric acid solution, performing ultrasonic treatment, then subjecting the ultrasound treated solution to heating reaction in awater bath pot, then performing cleaning with distilled water to neutral, and conducting natural airing to obtain modified activated carbon fiber; (b) noble metal loading: impregnating the modified activated carbon fiber in a noble metal solution, and performing ultrasonic treatment and standing, then adding a sodium hydride solution to reduce noble metal, finally taking out the activated carbon fiber, and conducting washing and drying to obtain a noble metal-loaded activated carbon fiber semi-finished product; and (c) calcination: putting the noble metal-loaded activated carbon fiber semi-finished product in a muffle furnace for calcination, thus obtaining the noble metal-loaded activated carbon fiber monoatomic catalyst finally. The method provided by the invention greatly improves the catalytic degradation efficiency of the monoatomic catalyst.

The invention discloses a core-shell material. A core material of the core-shell material is selected from at least one of compounds having the molecular formulae as shown in formula (I) and formula (II); and the core-shell material is prepared by a method of a multilayer precursor. The core-shell material is applied to the field of a lithium ion battery as a positive electrode material, and has good air stability and safety performance while the high capacity advantage is exerted.

The invention provides a method for preparing immobilized fructosyltransferase through ion exchange fibers. The weakly basic anion exchange fibers are used as a carrier to immobilize a liquid free fructosyltransferase to the carrier, the activity of the immobilized fructosyltransferase can be maintained for a long time, and the immobilized fructosyltransferase can be repeatedly used for a long time. The method comprises two pieces of technological content, namely the liquid free fructosyltransferase is prepared through biolysis and the immobilized fructosyltransferase is prepared through the ion exchange fibers. Fermentation cultivation is conducted on aspergillus oryzae to obtain a large amount of thallus, the thallus is washed, celluloses are used for dissolving the thallus, free enzyme fluid is extracted, and then the fructosyltransferase is immobilized through the ion exchange fibers. The activity of the obtained immobilized fructosyltransferase is larger than or equal to 180 U/g, the half-life period of the immobilized fructosyltransferase is larger than or equal to 40 times, the saccharose inversion rate is larger than or equal to 90%, and the content of fructo-oligose generated through the saccharose inversion is 55-60%. Compared with the public prior art, the method has the advantages that enzyme extraction is simple, operation time is short, enzymes can be easily recycled, the immobilization process is conducted without cross-linking agents, and the product quality and safety are high.

The invention provides a production technology of a polypropylene building template, which is the technology for producing the building template by adopting waste plastics as the raw materials. The production technology comprises the steps of pretreating the raw materials, mixing the materials, and carrying out extrusion molding. The raw materials are treated based on a certain ratio and prepared into the product building template under a certain condition. The product building template has the characteristics that the construction quality is high, the building template can be recycled for a plurality of times, the cost is reduced, the benefit is increased, the energy conservation and environment protection are realized, and the residues can be recycled; and the product building template has a large market demand and wide prospect, and is an excellent substitute for steel templates, bamboo plywood and wood plywood.

The invention relates to a battery sorting method based on a charging and discharging curve and fuzzy clustering. The method comprises the following steps: acquiring respective charging and discharging curves of batteries to be sorted, and performing data sampling on each charging and discharging curve every N seconds to form complete cyclic sampling data and a feature vector set of a single battery so as to form a battery sample set matrix; substituting the battery sample set matrix into an FCM clustering algorithm; obtaining classification results. The battery packs are grouped by a sortingmethod, the decreasing trend of the attenuation rate of the cycle life of the battery packs is effectively inhibited, the consistency is higher than that of the battery packs formed without any sorting method, the cycle times of the sorted battery packs are more, and the consistency of the battery packs sorted by combining FCM and multiple parameters is superior to that of the battery packs sortedby OCV and internal resistance.

A system and method for identifying and manipulating logic analyzer data from multiple clock domains is presented. A logic analyzer receives debug data and determines whether the debug data is a full frequency data type, a half frequency data type, or a crossed data type. Once determined, the logic analyzer reconstructs the debug data such that debug condition-matching logic may process the reconstructed data in a full frequency domain. For half frequency data types, the logic analyzer adds masked data values to the data in order to reconstruct the data into to the full frequency domain before processing the data. For crossed data types, the logic analyzer reconstructs the data into its original format before processing the data in a full frequency domain.

The invention discloses a preparation method of a high-capacity lithium-rich ternary positive electrode material. The method comprises the following steps of weighing a lithium salt, a manganese salt,a cobalt salt and a nickel salt according to a stoichiometric ratio in a general formula zLi2MnO3.(1-z)LiMO2 and dissolving the weighed salts into deionized water to form a mixed salt solution; dissolving a chelating agent into the deionized water to form a chelating agent solution; slowly dropwise adding the chelating agent solution into the mixed salt solution in a back titration manner and mixing evenly; and adding an alkaline solution to adjust the pH value of the solution, heating the solution into a sol form in water bath, carrying out spray drying and then putting a product into a muffle furnace for sintering according to a certain sintering curve to obtain the high-capacity lithium-rich ternary positive electrode material, wherein z is smaller than 1 and greater than 0, M is MnxNiyCo(1-x-y), x is smaller than 1 and greater than 0 and y is smaller than or equal to 0.6 and greater than 0. The high-capacity lithium-rich ternary positive electrode material is prepared by using a one-step sol method; the preparation method is simple, mild, environment-friendly and efficient; and the synthetic product has relatively high specific capacity and relatively good rate capability.

The invention provides a synthetic method of p-tert-butylbenzaldehyde. A liquid-phase oxidation method is used, p-tert-butyltoluene as a raw material, oxygen as an oxidizing agent, N-hydroxyl phthalimide as an initiator and acetonitrile as a solvent are used under the action of a catalyst for reacting for 7 hours at the temperature of 70 DEG c under the magnetic stirring rotating speed of 200r/minso as to obtain the p-tert-butylbenzaldehyde. The selected catalyst is a Ni-loaded microporous molecular sieve, and preparation raw materials comprise a nickel salt, a molecular sieve and deionized water; the microporous molecular sieve is used as a carrier for loading of an active component by an impregnation method to prepare the catalyst containing the active component nickel, the catalyst hasrelatively high selectivity and activity, the conversion rate of the raw material in the reaction for preparing the p-tert-butylbenzaldehyde by the liquid-phase oxidation reaches 30.6%, the selectivity of the target product reaches 77.2%. Compared with other catalysts in the prior art, the catalyst has the advantages that the selectivity is obviously improved.

The invention relates to the technical field of drilling fluid separation equipment, and discloses a separation vibrating screen for drilling fluid. The separation vibrating screen comprises a base, ascreen frame is movably mounted at the top of the base, a placement plate is fixedly mounted at the top of the screen frame, a vibration excitation device is fixedly mounted at the top of the placement base, a screen device is fixedly mounted on the front surface of an inner cavity of the screen frame, a communicating hose fixedly communicates with the bottom of the screen device, and a negativepressure chamber is fixedly mounted on the front surface of the inner cavity of the base. According to the separation vibrating screen for the drilling fluid, a spiral pneumatic blade, an injector head and an eccentric block are arranged in the vibration excitation device and are matched with one another, external compressed air enters the outer side cavity through the air inlet, and the sprayinghead sprays the compressed air to the outer surface of the spiral pneumatic blade so that the device provides a vibrating source for the vibrating screen through the compressed air, a special vibrating motor does not need to be arranged, and energy is saved.

The invention discloses an environment-friendly type agricultural product baking machine. The environment-friendly type agricultural product baking machine comprises a body and a blower, wherein the body is provided with a baking chamber and a draft chamber; an auxiliary blowing mechanism and a hollow heat supply seat are arranged in the baking chamber; a moisture removal port and a moisture removal cylinder are arranged on the top surface of the body; a moisture removal adjusting device is arranged on the moisture removal cylinder; a side partition plate and a middle partition plate are arranged in the draft chamber; the blower is mounted in a front chamber; a heating element is mounted in a back chamber; the hollow heat supply seat communicates with the back chamber; a side port and a side seal plate are arranged on the side partition plate; a return air control device for controlling the side port to be opened or closed is arranged on the side seal plate; an air inlet and a front seal plate are arranged on the front side surface of the body; and an inlet air control device for controlling the air inlet to be opened or closed is mounted on the front seal plate. Compared with theprior art, by adjusting the air amount of the moisture removal port, the side port and the air inlet, the baking machine disclosed by the invention can adapt to a baking process required by shiitake mushrooms and also adapt to baking processes of different agricultural products, so the baking machine has the advantages of wide application range, energy saving, environmental protection and high baking speed.

The invention discloses a high-strength formwork free of layer separation and a method for manufacturing the high-strength formwork. The high-strength formwork and the method have the advantages that the length directions of battens a are consistent with the growth direction of wood, the height directions of battens b are consistent with the growth direction of the wood, accordingly, sufficient adhesive steeping and mechanical bracing effects can be realized, a core is extremely high in mechanical property in the vertical direction and the horizontal direction and is low in deformation, layer separation phenomena inside the machined core can be prevented, the high-strength formwork is high in modulus, and buckling deformation of the formed formwork can be prevented; the mechanical properties of the formwork can be improved by the aid of continuous fiber reinforcement composite surface layers, the high-strength formwork is light, waterproof and anticorrosion, is high in strength and recycling frequency, and can be easily released from forms, the recycling frequency of the high-strength formwork can reach a hundred at least, accordingly, the service life of the building formwork can be greatly prolonged, and the single-service cost can be reduced.

The invention discloses an additive manufacturing product and powder treating system and a working method thereof. According to the technical scheme, the system is characterized by comprising a powdercleaning cabinet, wherein a powder cleaning table is arranged in the powder cleaning cabinet, a forming barrel is placed on one side of the lower portion of the powder cleaning table, used old powderis contained in the forming barrel, a vibrating screen used for screening the old powder or novel powder is arranged on the other side of the lower portion of the powder cleaning table, a material receiving barrel used for receiving screened powder is arranged below the vibrating screen, a dust collection cabinet communicating with the powder cleaning cabinet is arranged outside the powder cleaning cabinet, a dust collection device is arranged in the dust collection cabinet, a powder recycling barrel and a powder mixing barrel are further arranged outside the powder cleaning cabinet, and a powder mixing device for fully mixing the novel powder and the old powder is arranged in the powder mixing barrel. According to the system and the method, arrangement of the powder barrels is redesigned, the old powder and the novel powder need to be screened through the vibrating screen, coarse particles are prevented from entering mixed powder, purity and more recycling times of the mixed powder are guaranteed, and the surface quality of printing-formed parts is guaranteed.

The invention relates to a crop harvesting ploughing tool comprising a supporting rack connected to a tractor. A transferring case is mounted on the supporting rack; the transferring case is connected with a transmission shaft; the transmission shaft is connected with a tractor power output via a universal joint; the transferring case is connected with an eccentric wheel via a connection shaft; the eccentric wheel is connected with a vibration rod; a soil-lifting plough is fixed under the supporting rack; a front soil vibration shifting fork is hinged behind the soil-lifting plough; the front soil vibration shifting fork is hinged with a back soil vibration shifting fork; the front soil vibration shifting fork is hinged with a vibration rod; the vibration rod is connected with a second vibration rod; and the second vibration rod is hinged with the back soil vibration shifting fork. The crop harvesting ploughing tool can be installed on an elevated tractor; crops of two ridges or more can be harvested; the soil vibration shifting forks can vibrate in a waveform; and the back soil vibration shifting fork has more period and amplitude changes.