51results about How to "Short irradiation time" patented technology

The invention provides a preparation method of a high-flavonoid-content tartary buckwheat product. The preparation method comprises the following steps: selecting full tartary buckwheat grains and placing into a container, adding with clean water, and soaking for 3-7h at 20-30 DEG C; uniformly scattering the soaked grains in a shallow tray paved with a wet gauze at the bottom, placing the shallow tray into an incubator at 21-25 DEG C, germinating for 12-48h under a dark condition, and spraying water into the shallow tray every 12h during the period of time to ensure the humidity; irradiating the germinated grains for 25-30min with UV-C (ultraviolet-C rays), placing into the incubator at 21-25 DEG C, and continuously germinating for 24-48h under a dark condition; and drying the processed grains at 50-60 DEG C and husking to obtain tartary buckwheat grains, or further crushing to obtain flour. The method adopts the UV-C irradiation and germination technology, and the method can remarkably improve the total flavonoid content (improved by 80% compared with the control group) of the tartary buckwheat product; and besides, the UV-C also has a sterilization function and ensures the safety of the product.

The invention discloses a separation method and a separation device of polymer-containing oil sludge. The separation method comprises the steps of: (1) ultrasonic gel breaking of the polymer-containing oil sludge; (2) ultrasonic cleaning; and (3) standing separation. An ultrasonic device comprises a cylinder, an ultrasonic generation device, an ultrasonic controller arranged in the ultrasonic generation device, and ultrasonic transducers matching the ultrasonic generation device. The ultrasonic transducers are arrayed and are uniformly distributed on the two ends of the cylinder. A feeding port and a discharging port are respectively arranged on the top and the bottom of the cylinder. A feeding direction is perpendicular to an ultrasonic emission direction. According to the invention, polymer degradation is enhanced by using ultrasonic, stabilization of the polymer upon the oil-water-solid phase is reduced, and separation efficiency is improved. The feeding direction is perpendicular to the ultrasonic emission direction, and the ultrasonic device runs on line. Ultrasonic field radiation energy is concentrated, and an irradiation time is short, such that polymer-containing oil sludge can be subjected to large-scale industrial processing.

The invention provides a method for preparing stable nano-silver. The method comprises the steps that micelle of amphiphilic chitosan and polycaprolactone crafted copolymer or a derivative of the amphiphilic chitosan and polycaprolactone crafted copolymer serves as a stabilizer, and the stable nano-silver is obtained. The method for preparing the stable nano-silver has the advantages that formed silver nanoparticles of a good three-dimensional area center structure are evenly distributed and are uniform and stable in size, and not any reducing agents or complex methods are used in the preparation method of the nano-silver, so that repeatability is good. Compared with other micelle type stabilizers, the preparation process of a raw material and micelle aqueous solution of the raw material are simple, the material itself is non-toxic, small in use amount and fast in preparation speed. Compared with other existing preparation technologies, the method is convenient to operate, simple in process and fast in preparation speed. In addition, equipment is conventional, and irradiation time is short.

The invention discloses a photocuring oil phase for preparing a droplet array chip. The photocuring oil phase comprises the raw materials: a photocuring reagent, a surfactant, a photopolymerization initiator and a diluent; the photocuring reagent is selected from at least one of a polymer containing a (methyl) acrylate functional group and a monomer containing a (methyl) acrylate functional group;and the surfactant is selected from a nonionic surfactant with a hydrophilic-lipophilic balance value of 2-8. The invention also discloses a preparation method for the droplet array chip by adoptinga photocuring mode by taking the photocuring oil phase as a raw material. The photocuring oil phase can form stable water-in-oil droplets with a water phase, and a large number of freely arranged water-in-oil droplets can be quickly fixed in situ only by several seconds of ultraviolet irradiation to form a stable droplet array. The photocuring oil phase is short in curing time, easy to store and more suitable for the ddPCR technology, and conditions are created for real-time fluorescence imaging detection due to the fact that the stable droplet array is formed.

The invention discloses a nuclear fuel element core body removing device including a fixed clamping block, a movable clamping block, an eject pin and a guide sleeve. The upper end face of the fixed clamping block is formed in a two-step stepped shape; the movable clamping block is arranged on a region at a lower horizontal position of the upper end face of the fixed clamping block and is connected with the fixed clamping block; the end part of one end of the guide sleeve is connected with the side wall of one side at a higher horizontal position of the upper end face of the fixed clamping block. The lower end face of the movable clamping block is provided with an upper semicircular groove, the upper end face of the fixed clamping block is provided with a lower semicircular groove corresponding to the upper semicircular groove position, the fixed clamp block is provided with a circular pore channel for communicating the lower semicircular groove with a guide sleeve internal channel, the center lines of the upper semicircular groove, the lower semicircular groove, the circular pore channel and the guide sleeve internal channel are justified, and one end of the eject pin successively passes through the guide sleeve internal channel and the circular pore channel. By adopting the above structure, the nuclear fuel element core body removing device has compact structure, is easy to transport, can improve the removal efficiency of a core body while being used for removing a core body in a cladded shell, and can avoid the cladded shell from being suffered from secondary damage.

The invention discloses a nuclear power plant radioactive waste metal bucket transferring gripping apparatus device. The nuclear power plant radioactive waste metal bucket transferring gripping apparatus device comprises a chassis, a guide device arranged on the edge of the chassis, and a telescopic plate device arranged on the chassis, the telescopic plate device is provided with a telescopic plate, a round groove is formed in the inner wall of a metal bucket cover, and when the telescopic plate extends out, the telescopic plate is in abut joint with the round groove in the inner wall of themetal bucket cover. Compared with the prior art, the nuclear power plant radioactive waste metal bucket transferring gripping apparatus device achieves automatic grabbing and releasing of a radioactive waste metal bucket in the transferring process of the radioactive waste, the automation efficiency and remote operation are improved, and safety of an operator is ensured.

The invention discloses a method for improving electrolytic solution resistance of a lithium battery negative electrode binder through irradiation, and belongs to the technical field of lithium batteries. The method comprises the following steps: preparing a lithium battery containing a negative electrode taking sodium carboxymethyl cellulose (CMC-Na) and styrene-butadiene rubber emulsion (SBR) asbinders; and placing the whole battery on an under-beam device of an electron beam irradiation accelerator, and irradiating the whole lithium ion battery, wherein the irradiation dose is 10 to 100 kGy, the irradiation dose rate is 2-10 kGy/s, and in the negative electrode, CMC-Na and SBR can generate intramolecular and intermolecular chemical cross-linking so as to improve the electrolytic solution resistance of the binders CMC-Na and SBR in the negative electrode sheet, reduce the swelling of the binders CMC-Na and SBR in the electrolytic solution, reduce the thickness expansion rate of thenegative electrode sheet in the battery circulation process, improve the capacity retention rate of the battery and prolong the service life of the battery. The process is simple and easy to implement, low in cost and suitable for consumer electronic lithium batteries and power type lithium batteries.

The invention discloses a synthetic method for high-performance water-absorbent resin processed by electron beam irradiation. The synthetic method comprises the following steps: (1) adding 20-80 parts by weight of polymeric monomers, 0.02-5 parts by weight of monomers, 0.001-1 part by weight of a cross-linking agent and 0.01-5 parts by weight of other additives into a reaction kettle and uniformly mixing to obtain a polymeric feed liquid, wherein the polymeric monomers are acrylic acid with the neutralization of 50-90 percent; (2) placing the flowing polymeric feed liquid under radiation of electron beams emitted by an electron accelerator to obtain a water-absorbent gel; (3) cutting, drying, crushing and screening the water-absorbent gel to obtain semi-finished particles; (4) performing surface crosslinking treatment on the semi-finished particles to obtain the high-performance water-absorbent resin finished product. Electron beams produced by the industrial electron accelerator irradiate acrylic acid monomer solutions to enable the feed liquid to finish polymerization reaction at the flowing instant so as to synthesize the high-performance water-absorbent resin.

The invention provides a quickly UV (ultraviolet) curable and water soluble chitosan derivative and a synthesis method thereof, relates to a biological high molecular material and a synthesis method thereof, and aims to solve the technical problems that the existing UV curable chitosan derivative preparation method is complex, the addition of a catalyst is required in the preparation process and the prepared UV curable chitosan derivative requires long irradiation time. The quickly UV curable and water soluble chitosan derivative provided by the invention is an N-methylacryloyl chitosan of which the structural formula is shown in the specification, wherein m is the mol percent of chitosan participating in the acylation reaction, and n is the mol percent of chitosan not participating in the acylation reaction. The synthesis method provided by the invention comprises the following steps: 1, preparing a chitosan acetic acid solution; 2, preparing a mixed solution; and 3, preparing the quickly UV curable and water soluble chitosan derivative. The invention is applied to the field of synthesis and modification of biological high molecular materials.

The invention relates to the field of development and utilization of biological resources, in particular to a method for enriching lutein with germinated corn, a product thereof and application. The method provided in the invention includes: taking corn grains with germination ability as the raw materials, conducting seed soaking in a calcium ion solution and dark culture, and then performing UV-Birradiation treatment. Determination shows that the method provided by the invention can improve the lutein content of germinated corn by 40% or more.

The invention relates to a mixed X-ray generation method which comprises a DC (Direct Current) mode and a pulse mode. The DC mode and the pulse mode can be freely switched. In the DC mode, a required current is provided for a cathode filament of an X-ray tube according to an input tube current set value signal; uninterrupted DC high voltages are loaded to both ends of the X-ray tube according to an input tube voltage set value signal; and in the whole working period, the closed-loop control is respectively formed by a tube voltage feedback value signal and a tube current feedback value signal which are obtained by the X-ray tube and the input tube voltage set value signal and the input tube current set value signal. In the pulse mode, pulse high voltages are loaded to both ends of the X-ray tube; in the whole period during each pulse high voltage interval period, a tube voltage analog value signal and a tube current analog value signal are input to respectively replace the tube voltage and tube current feedback value signals. The invention also provides a mixed X-ray generation device. The mixed X-ray generation method and the mixed X-ray generation device have the advantage that two irradiation modes of DC and pulse X rays can be simultaneously implemented on one equipment.

The invention relates to an irradiation preservation method for a famous freshwater fish. The irradiation preservation method for the famous freshwater fish is characterized by comprising the following steps: (1) pretreatment of the famous freshwater fish, slaughtering the famous freshwater fish, scaling, removing gills and internal organs, drying and packaging in vacuum, so as to obtain pretreated freshwater fish; (2) irradiation, adopting one of the following two methods: a, irradiating the pretreated freshwater fish with a cobalt-60 gamma ray within a low-temperature range of 0-5 DEG C, wherein the dose rate is 100-500GY/min, and the irradiation absorption dose is 6-9kGY; storing and transporting at 0-5 DEG C; b, irradiating the pretreated freshwater fish with an electron accelerator within a low-temperature range of 0-5 DEG C, wherein the electron accelerator is the electron accelerator of 5-10Mev, and the irradiation absorption dose is 6-9kGY; storing and transporting at 0-5 DEG C. According to the method, the irradiation off-odor is greatly reduced; the original flavor quality of a fish body is relatively well protected; the famous freshwater fish is long in quality guarantee period and constant in taste.

The invention relates to a low-pressure mercury vapor discharge UV (ultraviolet) germicidal lamp, and in particular relates to a high-power externally-coupled electrodeless UV lamp. The UV lamp comprises a closed lamp tube with an annular section, a coupler, and a high-frequency driver, and is characterized in that the high-frequency driver has the self-adaption characteristic, the diameter of the closed lamp tube is 46mm-56mm, the inner capacity of the closed lamp tube is 780cm<3>-2100cm<3>, inert gases with a pressure being 0.09-0.2 Torr and mercury vapors are filled in the closed lamp tube, and the mercury amount in the closed lamp tube is 16mg to 35mg; and the coupler comprises a first coupler unit and a second coupler unit, the first coupler unit and the second coupler unit are closed magnetic ring coupler units wound with coils, the total inductance amount of the coils of the closed magnetic ring coupler units is controlled about 0.45mH, and the first coupler unit and the second coupler unit are communicated with the high-frequency driver.

The invention provides a flexible conductive film and a preparation method thereof, and the preparation method comprises the following steps: S1, preparing nano-metal conductive ink, the mass fraction of nano-metal particles being 30%-70%; S2, printing the nano-metal conductive ink on a flexible substrate, after the ink is naturally air-dried, preheating the flexible substrate printed with the nano-metal conductive ink at the treatment temperature of 50-100 DEG C, and volatilizing residual organic matters to preliminarily form a sintering neck; and then carrying out intense pulsed light sintering to obtain the flexible conductive film with high conductivity and high oxidation resistance. The energy of the intense pulsed light sintering is 0-8.04 J/cm<2>. By adopting the technical scheme, the flexible substrate is not damaged, the sintering time is short, the efficiency is high, the sintering structure is compact, the porosity is low, the flexible electrode can be prepared in a large area, and the prepared electrode has ultrahigh conductivity and high oxidation resistance.

The invention provides a covered stent system. The covered stent system is simple in structure, clear in principle, flexible and diverse in combinations and relatively few in required stent specifications, achieves limited stent specifications and meets the requirements for different vascular anatomical structures. Various stents in a stent sub-system are fast in release, and blood flow, deep hypothermic circulatory and extracorporeal circulation do not need to be blocked, so that the surgical operation difficulty is greatly reduced, the operation time is shortened, and the perioperative mortality and complication can be greatly reduced. In addition, the operation time is shortened and the operation difficulty is reduced, so that the amount of a contrast medium can be reduced, and meanwhile, the irradiation time that a doctor and a patient are exposed to radioactive rays is significantly shortened. The covered stent system provided by the invention can achieve endovascular exclusion treatment from single-branched vessels to multibranched vessels, for example, endovascular exclusion treatment from arcus aortae and celiac trunks to renal arteries.

The invention discloses an application of copper-doped gold nanorods in preparation of antitumor drugs. Studies of inventors show that copper-doped gold nanorods are converted into 2-5nm small-sized gold quantum dots under high-power ultrasound action and then selectively kill tumour cells, therefore, the copper-doped gold nanorods can be used as an online antitumor preparation for treating various cancers and the irradiation time of HIFU (high intensity focused ultrasound) can be shortened.

The invention provides a device for transposing inner boxes as irradiation containers for an irradiation device and an operation method thereof and aims to solve the problems that the irradiation device is prone to the excessively high non-uniformity and the waste of irradiation dose caused when irradiating high-density products and incapable of irradiating the products requiring higher non-uniformity of absorption dose. The device of the invention comprises a delivering device and an irradiation box located on the delivering device and is characterized by further comprising more than two inner boxes, supports inside and outside the irradiation box, and a rail traveling and moving device, wherein the inner boxes are sequentially arranged and located on the support inside the irradiation box on the bottom surface of the irradiation box; the support outside the irradiation box is located on the rail traveling and moving device in a way that the support outside the irradiation box can move in the direction of the inner boxes on the bottom surface of the irradiation box; and the inner boxes can slide in the direction perpendicular to the direction of the inner boxes on the supports inside and outside the irradiation box.