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65 results about "Pulse microwave" patented technology

Control method for optimizing operation of high-power short-pulse microwave equipment

The invention provides a control method for optimizing operation of high-power short-pulse microwave equipment, and aims to improve the accuracy of microwave interference signals, the energy utilization efficiency and the system adaptability. The method comprises the following steps: firstly, acquiring position information, motion trail data, electromagnetic scattering characteristics and environmental electromagnetic parameters of a target object; and then, according to the target position prediction data, the electromagnetic scattering characteristics and the environmental electromagnetic parameters, generating a microwave pulse waveform control instruction. And controlling the phased-array antenna array to generate a directional microwave beam based on the control instruction and the target position prediction data. And collecting real-time response data of the target, dynamically updating the target motion trend prediction model according to the real-time response data, and recalculating microwave pulse signal parameters. And finally, according to the updated signal parameters and the target position prediction data, adjusting the transmitting power, the working time sequence and the beam direction of the phased-array antenna array so as to maintain the optimal interference effect, reduce unnecessary energy consumption and improve the stability and adaptability of the system.
Owner:ZHONGWEI JUNENG TECHNOLOGY (SHENZHEN) CO LTD

Magnetized atmospheric pressure pulse microwave plasma jet discharger

The invention belongs to the technical field of microwave plasmas, and particularly relates to a magnetized atmospheric pressure pulse microwave plasma jet discharger. The discharger is reasonable in design, microwave energy is fed into the discharge chamber through the SMA interface, high electric field intensity is formed at the tip of the hollow needle electrode, and fed working gas is disrupted and discharged; a magnet exciting coil outside the quartz tube generates an axial magnetic field inside the quartz tube through direct current, electrons do spiral cycloid motion in an electromagnetic field, and electron cyclotron resonance can be achieved under the field. Through magnetic field constraint, high-energy electrons are constrained in a core area, a motion path is prolonged, effective collision times are increased, gas dissociation efficiency and ionization degree are improved, and collision loss of the electrons and a wall surface is reduced; the plasma jet performance is improved; the device works in an atmospheric pressure environment, does not need a vacuum system, reduces equipment cost and maintenance difficulty, reduces electrode sputtering and cavity corrosion, and prolongs the service life of core components.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

Composition for assisting in reducing blood glucose and blood lipid as well as preparation method and application of composition

The invention discloses a composition for assisting in reducing blood sugar and blood fat as well as a preparation method and application thereof, and relates to the technical field of functional compositions. The composition comprises highland barley powder and modified inulin, the preparation method of the highland barley powder comprises the following steps: soaking highland barley grains in a weakly alkaline aqueous solution, and sequentially carrying out first pulse microwave treatment, enzyme deactivation treatment and segmented baking treatment; the segmented baking treatment comprises first-stage baking treatment and second-stage intermittent infrared irradiation treatment; the temperature of the first-stage baking treatment is 40-60 DEG C; the temperature of the second-stage intermittent infrared irradiation treatment is 60-80 DEG C, and the emission wavelength is 2.5-4 microns; the preparation method of the modified inulin comprises the following steps: performing acidolysis treatment on inulin in a weakly acidic aqueous solution, and then drying. The highland barley powder and the modified inulin in the embodiment can synergistically improve glycometabolism and lipid metabolism, effectively reduce the body weight, blood sugar, blood fat and the like under high-glucose and / or high-fat diet, and protect and repair the pancreas islet function.
Owner:XIANSHENG BIOTECHNOLOGY (WUHAN) CO LTD

Laser plasma-based generation of ultrawideband microwave signals

A method for generating ultrawideband pulsed microwave signals from optical field ionization of a gas with an ultrashort laser pulse, where the amplitude and frequency of the signals can be controlled via the characteristics of the laser pulse and / or the gas. The center frequency of the spectrum of the microwave signal can be controlled by changing the laser pulse energy. The amplitude of the microwave signal can be controlled by changing the wavelength of the laser pulses. The amplitude and frequency of the microwave signal can be tuned by controlling the pressure of the gas medium. The location at which the microwave signal is generated can be controlled by controlling the location at which the laser pulse creates a plasma. Interference among microwave signals resulting from multiple laser-produced plasmas can be used to construct an ultrawideband microwave signal having a predetermined amplitude and frequency.
Owner:THE GOVERNMENT OF THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY DEPARTMENT OF HEALTH & HUMAN SERVICES

Pulse microwave treatment method and system for gynaecology and obstetrics

The invention relates to the technical field of pulse microwave treatment, in particular to a pulse microwave treatment method and system for gynaecology and obstetrics, and the method comprises the steps: obtaining the skin data of a patient, and calculating a skin state evaluation value; according to the skin state evaluation value, the skin condition of the patient is judged, and a treatment state signal is generated; based on the treatment state abnormal signal, acquiring pulse microwave data, and calculating to obtain a distribution deviation value; according to the distribution deviation value, the relevance between the skin abnormal state and the pulse microwave intensity difference is judged, and a pulse microwave intensity difference state relevance signal is generated; based on the pulse microwave intensity difference state correlation large signal, skin data and pulse intensity data are obtained, and a pulse instrument output power adjustment value is obtained through calculation; the experience feeling of a patient in the pulse microwave treatment process can be improved, the occurrence rate of skin abnormity of the patient can be reduced, the safety in the pulse treatment process is improved, and the occurrence rate of medical accidents is reduced.
Owner:CANCER CENT OF GUANGZHOU MEDICAL UNIV

Preparation method of sand washing mud-based baking-free brick and baking-free brick

The invention discloses a preparation method of a sand washing mud-based baking-free brick, the method comprises the following steps: pre-mixing sand washing mud with fly ash to obtain modified sand washing mud, then carrying out semi-dry dehydration treatment on the modified sand washing mud, and mixing with cement to obtain a premix, the water content of the modified sand washing mud after the semi-dry dehydration treatment is 15-20%; loading the premix into a mold, and carrying out compression molding to obtain a baking-free brick mold blank; and activating the baking-free brick mold blank by using pulse microwaves to obtain the sand washing mud-based baking-free brick. Therefore, the baking-free brick prepared by the preparation method disclosed by the invention has the advantages of high forming speed, high compressive strength and no need of a long-time autoclaved curing process, the forming period is greatly prolonged, and the large-scale yield is favorably increased. The raw materials are rich in source, double solid waste resource utilization of the fly ash and the sand washing mud can be achieved, waste is turned into wealth, and the environmental burden is reduced.
Owner:HEFEI CEMENT RESEARCH AND DESIGN INSTITUTE CO LTD

Method for extracting high-purity pectin through cooperation of pulse microwaves and low temperature

PendingCN120988161ASignal onPulse microwave
The invention relates to the technical field of polysaccharide extraction, and discloses a method for extracting high-purity pectin through cooperation of pulse microwave and low temperature, which comprises the following steps: applying a microsecond-level microwave pulse sequence corresponding to inherent acoustic resonant frequency of raw material particles, and monitoring net absorption power and acoustic signals on line, so as to adaptively control frequency locking and pulse form in a closed-loop manner; according to the invention, the electromagnetic energy of microwaves is converted into instantaneous mechanical work, and efficient structural damage to the plant cell walls from inside to outside is realized through a resonant coupling effect on the premise of maintaining the low temperature of the system; the online self-adaptive closed-loop control mechanism ensures the whole-process optimization of the energy coupling efficiency and the process stability, so that the inherent contradiction that the product quality and the extraction efficiency are difficult to consider at the same time in the traditional extraction technology is solved.
Owner:SHANDONG JOYWIN GREEN AGRI DEV CO LTD

High-purity nickel powder, system and method for field flow control preparation of plant polyphenol

The invention discloses high-purity nickel powder prepared from plant polyphenol through field flow control, a system and a method, a sulfonated tannic acid-gallic acid bio-based system is used as a reduction-stabilizer, and green and efficient preparation of nickel nano powder is realized through a multi-physical field synergistic effect of a three-stage gradient continuous flow reactor and double-frequency ultrasonic-pulse microwave-nitrogen bubbling. The total residence time of the reaction is 25.1-37.7 min, mother liquor is reused after being subjected to salt separation treatment (nanofiltration desalination of a NiSO4 system and ion exchange Cl removal of a NiCl2 system), and the wastewater discharge amount is greatly reduced compared with that of a traditional process; the surface oxygen content of the product is smaller than or equal to 0.9 wt%, the PDI is smaller than or equal to 0.15, the tap density is larger than or equal to 4.0 g / cm < 3 >, the GB / T 33828-2017 standard is met, the method can be used for the high-end field of lithium ion batteries and the like, and green industrial production of the nanometer nickel powder is achieved from the source.
Owner:HENAN ZHONGZHUAN NEW MATERIAL CO LTD +3

Liquid detector

The utility model relates to the technical field of liquid detection, in particular to a liquid detector which comprises a shell, a non-metal container detection platform and a metal container detection cavity are arranged at the top of the shell, and a non-metal container detection module is arranged in the non-metal container detection platform. The nonmetal container detection module comprises an ultra-wide-band pulse microwave transmitter and an ultra-wide-band pulse microwave receiver, a metal container detection module is arranged in the metal container detection cavity and comprises an electric heater and a thermoelectric sensor, and a first indicator lamp and a second indicator lamp of a touch operation screen are arranged on the front side of the shell. A detachable bottom plate is arranged at the bottom of the shell, and four leveling pieces are arranged at the bottom of the bottom plate. According to the liquid detector, a non-contact detection method is adopted, and a container is prevented from being opened for sampling, so that the risk of leakage, evaporation or explosion of flammable and explosive liquid is remarkably reduced, the safety of operators is ensured, and potential threats to the surrounding environment are also reduced.
Owner:ZHONGLU TIEDUN (HENAN) TECHNOLOGY CO LTD

Pulse excitation microwave generation device for quantum limit amplifier

The invention provides a pulse excitation microwave generation device for a quantum limit amplifier, and relates to the technical field of superconducting quantum calculation and other weak microwave signal measurement. The pulse excitation microwave generation device for the quantum limit amplifier comprises a microwave source used for generating continuous microwave signals; the microwave signal direct generation device is used for generating a pulse microwave signal; the frequency mixer is used for carrying out frequency mixing on the continuous microwave signal and the pulse microwave signal to generate a frequency mixing signal; the band-pass filter is used for filtering the frequency mixing signal; and the power amplifier is used for amplifying the filtered frequency mixing signal and generating pulse excitation microwaves for the quantum limit amplifier, so that the implementation cost is greatly reduced, the space occupied by equipment is reduced, and the space is saved.
Owner:BEIJING ACAD OF QUANTUM INFORMATION SCI

Method for microwave digestion of express packaging material and application

The invention discloses a method for microwave digestion of an express packaging material and application, and the method comprises the following steps: S1, crushing and grinding the express packaging material until the particle size is less than 100 [mu] m; s2, adding a composite acid-chitinase mixed solution into the digestion tank, and preliminarily contacting with the sample to weaken the structure of the sample; the composite acid-chitinase mixed solution comprises a composite acid mixed solution and a chitinase aqueous solution; the composite acid mixed solution comprises nitric acid, trifluoroacetic acid, hydrogen peroxide and formic acid; s3, placing the digestion tank treated in the step S2 on a turntable of a microwave digestion instrument, and carrying out pulse type microwave digestion; the microwave time is 25 minutes to 35 minutes; according to the method, pulse type microwaves are matched with the composite acid to digest the express packaging material, the digestion solution with high digestion completeness is obtained, HP-beta-CD and DTPA are used as double ligands to synergistically extract heavy metals such as lead and cadmium, the selectivity is good, and the efficiency is high.
Owner:NATIONAL INSTITUTE OF METROLOGY CHINA

Preparation method and application of flaxseed meal dietary fiber

The invention provides a flaxseed meal dietary fiber preparation method and application thereof.The flaxseed meal dietary fiber preparation method comprises the following steps that firstly, flaxseed meal pulp is subjected to high-power pulse microwave pretreatment, after vacuum drying, bacillus subtilis K6 is inoculated for solid-state fermentation, then double enzymolysis is conducted through amylase and protease, and the flaxseed meal dietary fiber is obtained; soluble dietary fibers and insoluble dietary fibers are extracted, the insoluble dietary fibers are subjected to compound modification through rutin and betaine, and the soluble dietary fibers are extracted through adsorption and purification of composite surface imprinted microspheres. The method obviously improves the yield and purity of the soluble dietary fibers in the flaxseed meal, the activity function of the insoluble dietary fibers is obviously enhanced after the insoluble dietary fibers are subjected to composite modification, and the flaxseed meal can be used for developing functional food or health care products. The method disclosed by the invention is green, environment-friendly, stable in process and suitable for large-scale production, and the comprehensive utilization value of the flaxseed meal is effectively improved.
Owner:HENAN UNIVERSITY OF TECHNOLOGY

A method for fast magnetic field imaging based on coherent regulation of diamond NV color centers

The application relates to the technical field of magnetic field imaging, in particular to a fast magnetic field imaging method based on diamond NV color center coherent regulation. In order to solve the problem that the existing diamond NV color center-based magnetic field imaging method is complex to operate, a new fast magnetic field imaging method based on diamond NV color center coherent regulation is provided, and the method comprises the following steps: 1) setting the frequency of pulsed microwaves; 2) setting a synchronous control sequence, collecting fluorescence intensities of diamond NV color centers at different positions in a two-dimensional space; 3) drawing Rabi curves about time-fluorescence intensity corresponding to the different positions of the diamond NV color centers in the two-dimensional space; 4) obtaining actual angular frequencies corresponding to each Rabi curve; 5) calculating the magnetic field strength variation of the diamond NV color centers at different positions in the two-dimensional space; and 6) realizing magnetic field imaging. The method realizes the target of fast magnetic field imaging.
Owner:ZHONGBEI UNIV

Preparation method of photovoltaic potassium hydroxide

The invention provides a preparation method of photovoltaic potassium hydroxide, and relates to the technical field of potassium preparation. The method comprises the following steps: carrying out vacuum gradient crystallization on a KOH raw material to realize crude purification, carrying out centrifugal separation on wet crystals generated after crude purification, dissolving, carrying out three-stage counter-current extraction to obtain photovoltaic-grade KOH, extracting mother liquor generated after crude purification, and circularly carrying out vacuum gradient crystallization; dissolving the wet crystals in ultrapure water to prepare a KOH solution, filtering the KOH solution, enabling the KOH solution and an extracting agent to enter a three-stage counter-current extraction tower for three-stage counter-current extraction, carrying out nanofiltration and ultrafiltration on an output raffinate phase to obtain a photovoltaic-grade KOH product, and regenerating an output loaded organic phase to realize recycling; a microwave generating device is arranged on the three-stage counter-current extraction tower and is used for applying pulse microwaves to the mixing area in the tower. The sodium removal rate is increased, the solvent consumption is reduced, and the generation of hazardous wastes is reduced.
Owner:HUARONG CHEM (CHENGDU) CO LTD

Tissue identification method based on multi-frequency thermoacoustic imaging combined feature extraction

The invention discloses a method for realizing component and content identification of different tissues through multi-frequency thermoacoustic imaging combined feature extraction, and belongs to the field of microwave thermoacoustic imaging. The method comprises the following steps: radiating multi-frequency microwaves to biological tissues, receiving a thermoacoustic signal by using an ultrasonic transducer, and amplifying the signal for image reconstruction. The multi-frequency microwaves are pulse microwaves with various different frequencies, different frequencies are switched during imaging to excite the tested tissue in sequence, multiple groups of thermoacoustic images excited by microwaves with different frequencies are correspondingly obtained, and then the multiple groups of thermoacoustic images are fused to obtain a multi-frequency thermoacoustic image. Feature extraction is carried out by selecting an interested area in a single-frequency image, and distribution of different tissue components is identified and contents of the different tissue components are calculated based on a difference algorithm. The invention further provides a system for implementing the method. According to the method, clinical actual requirements are closely combined, efficient identification of different tissue components and accurate contents is realized, and the method has a very good application prospect.
Owner:WEST CHINA HOSPITAL SICHUAN UNIV

Module and method for generating pulsed microwave output signal

A module (10, 10.1) for generating a pulsed microwave output signal and for actuating a microwave solid-state power amplifier module (110, 112, 114, 124, 126, 128) comprises a. An input element (S1) having a microwave signal input (12) and at least one first and one second microwave signal output (14, 16), b. An output element (S2) having a microwave signal input (12) and at least one first and one second microwave signal output (14, 16), the input element (S1) and the output element (S2) have at least one first and one second microwave signal input (18, 20) and a microwave signal output (22), c. A first signal path (24) between the first microwave signal output (14) of the input element (S1) and the first microwave signal input (18) of the output element (S2), d. A second signal path (26) between a second microwave signal output (16) of the input element (S1) and a second microwave signal input (20) of the output element (S2), e. An attenuation element (18) arranged in the second signal path (26), wherein i. The input element (S1) has a control signal input (30) and is configured to connect a microwave signal input (12) of the input element to a first or second microwave signal output (14, 16) of the input element depending on a pulse signal (40) input at the control signal input (30); and / or ii. The output element (S2) has a control signal input (32) and is configured to connect a first microwave signal input (18) of the output element or a second microwave signal input (20) of the output element to a microwave signal output (22) of the output element depending on a pulse signal (40) input at the control signal input (32).
Owner:TRUMPF PATENTABTEILUNG

A pulse microwave treatment device for obstetrics and gynecology

The present invention discloses a pulse microwave treatment device for obstetrics and gynecology, specifically relating to the technical field of medical equipment, including a microwave therapy device main unit, a first detection head provided on the microwave therapy device main unit, a treatment head guide assembly provided on the first detection head, a sliding support assembly provided on the outside of the first detection head, the sliding support assembly being used to slide with a guide support member, the guide support member being an adjustable guide support member, and the adjustable guide support member including a plurality of unit support blocks. The present invention provides sliding support for the first detection head through the guide support member and the sliding support assembly, and during treatment, the first detection head is manually manipulated to move back and forth along the guide support member, thereby ensuring that the treatment area can fully cover the target area, forming effective treatment, avoiding unnecessary mismovement that causes the first detection head to radiate to other non-target areas, causing accidental damage and energy waste, thereby improving treatment efficiency.
Owner:GENERAL HOSPITAL OF NUCLEAR IND

Pulse microwave plasma rapid hydrogen production method for culturing blue-green algae in light-gathering greenhouse

The invention provides a pulse microwave plasma rapid hydrogen production method for culturing blue-green algae in a light-gathering greenhouse, and belongs to the technical field of biomass energy. The method comprises the following steps: S1, culturing blue-green algae in a light-gathering greenhouse by using domestic sewage rich in nitrogen and phosphorus, and carrying out light gathering on sunlight to enhance the irradiation intensity of visible light and accelerate the growth speed of the blue-green algae so as to realize large-scale production of the blue-green algae; s2, carrying out crushing, alkali washing and decomposition on the blue-green algae to remove organic pigments and impurities so as to obtain a wet material containing protein and polysaccharide; s3, adding a certain amount of composite clastic enzyme into the wet material, and gradually decomposing protein and polysaccharide at room temperature to reduce the polymerization degree; and S4, putting the wet material subjected to enzymolysis into a pulse microwave plasma furnace, and carrying out instantaneous microwave plasma rapid pyrolysis gasification to prepare hydrogen. The rapid biomass hydrogen production method has the characteristics of high energy utilization efficiency, no pollution, high hydrogen purity, few byproducts and the like, and is expected to realize large-scale hydrogen production and sustainable development and utilization of blue-green algae.
Owner:NANCHANG HANGKONG UNIVERSITY

Pulse microwave treatment equipment for gynaecology and obstetrics

The invention discloses pulse microwave treatment equipment for gynaecology and obstetrics, and particularly relates to the technical field of medical equipment, the pulse microwave treatment equipment comprises a microwave treatment equipment host, a first detection head is arranged on the microwave treatment equipment host, a treatment head guide assembly is further arranged on the first detection head, and a sliding support assembly is arranged outside the first detection head. The sliding supporting assembly is used for being in sliding fit with the guiding supporting piece, the guiding supporting piece is an adjustable guiding supporting piece, and the adjustable guiding supporting piece comprises a plurality of unit supporting blocks. Sliding support is provided for the first detection head through the guide supporting piece and the sliding supporting assembly, and the first detection head is manually controlled to move back and forth along the guide supporting piece in the treatment process, so that it is ensured that a treatment area can fully cover a target area, effective treatment is formed, and the treatment efficiency is improved. And accidental injury and energy waste caused by radiation of the first detection head to other non-target areas due to unnecessary mistaken movement are avoided, so that the treatment efficiency is improved.
Owner:GENERAL HOSPITAL OF NUCLEAR IND

Heating process for regeneration of old asphalt material fibers

The invention provides a heating process for asphalt waste material fiber regeneration. The heating process for fiber regeneration of the old asphalt material comprises the following steps: S1, preheating the old asphalt material containing fibers in a reverse-flow waste heat exchanger to obtain a preheated old material; s2, the preheated old material is placed in a microwave heating cavity to be subjected to double-frequency pulse microwave heating; and S3, while the double-frequency pulse microwave heating is performed, nitrogen containing a silane coupling agent is atomized and introduced into the heating cavity through a gas atomization device, so that the coupling agent is subjected to in-situ hydrolysis and polymerization on the surface of the fiber to form the nano-scale protective coating. According to the heating process for regenerating the old asphalt material fibers, target type heating of the asphalt matrix and the fibers is achieved, the heating efficiency is improved by at least 20%, meanwhile, it is ensured that the old material reaches the regeneration temperature within the shortest time, the process period is remarkably shortened, energy consumption is reduced, and the bonding characteristic of asphalt is recovered; and finally, the high-quality regenerated material with stable performance, crack resistance and durability is obtained.
Owner:GUANGDONG UNIV OF TECH

Microwave atmosphere furnace for simulating meteorite impact fusion pulse and cold contraction crack

The utility model provides a microwave atmosphere furnace for simulating meteorite impact fusion pulse and cold contraction crack, and belongs to the technical field of planet impact meteology. The atmosphere furnace comprises a reaction furnace, a pulse modulation assembly and an air pump assembly. The reaction furnace is provided with a reaction cavity, and a meteorite sample is arranged in the reaction cavity. The pulse modulation assembly is connected with the reaction furnace, and the pulse modulation assembly is configured to output pulse microwaves to the interior of the reaction cavity so as to heat the aerolite sample to a molten state. The gas pump assembly is communicated with the reaction cavity, the gas pump assembly comprises a vacuum pump and a gas pump, the vacuum pump is configured to suck the reaction cavity to a vacuum state so that the aerolite sample can be heated to a molten state in the vacuum state, and the gas pump is configured to spray inert gas into the reaction cavity so as to cool the aerolite sample in the molten state. The atmosphere furnace disclosed by the utility model is beneficial to more accurately simulating the fusion evolution process after aerolite impact.
Owner:CENT SOUTH UNIV

S-band high power pulsed magnetron

The application discloses an S-band high-power pulsed magnetron and belongs to the field of vacuum electron devices. The device comprises an anode assembly, a cathode assembly, an input assembly, an output assembly and a permanent magnet. The application adopts an axial output structure, improves the sizes and proportions of the anode and the cathode, simultaneously increases the anode voltage, adopts the permanent magnet to provide a constant magnetic field, and can output a pulsed microwave power of more than 100kW on the basis of a small size.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Method for removing oxygen from refractory metal

The invention provides a method for removing oxygen from refractory metal, and relates to the technical field of metal smelting. The method for removing oxygen from the refractory metal comprises the steps that the refractory metal is placed in a vacuum cavity to be heated; wherein the heating temperature is lower than the melting point of the refractory metal; bubble cores are formed on the surface of the refractory metal through a focused ultrasound system, and plasma discharge is induced on the surface of the refractory metal through a pulse microwave source; volatile substances in the vacuum cavity are extracted; and under the condition that the oxygen concentration in the vacuum cavity is reduced to be below the oxygen concentration threshold value, heating is stopped, the focused ultrasound system and the pulse microwave source are closed, and the oxygen-removed refractory metal is obtained after cooling. According to the invention, the deoxidation effect of refractory metal can be improved.
Owner:XI AN JIAOTONG UNIV

Hepatocyte growth-promoting factor preparation and preparation method thereof

The invention relates to a hepatocyte growth-promoting factor preparation and a preparation method thereof, and belongs to the technical field of medicines. In order to solve the problems of low cell disruption efficiency, large polypeptide activity loss and long freeze-drying period in the existing hepatocyte growth-promoting factor preparation process, the invention provides a preparation method of a hepatocyte growth-promoting factor preparation, which comprises the steps of raw material pretreatment, low-temperature plasma cell disruption, compound protective agent compounding and pulse microwave freeze-drying. According to the method, an argon-oxygen mixed low-temperature plasma crushing technology is adopted, and the cell breakage rate of 99.7% can be achieved only in 10 min; a mannitol + proline + trehalose composite protective agent system is adopted, so that the activity index of the polypeptide is increased by 15.4%, and the validity period of the product is prolonged to 24 months; by adopting the process coupling design of plasma rapid crushing and pulse microwave rapid freeze-drying, the total production period is shortened to 12.5 hours from 30-36 hours of the traditional process, and the production efficiency is improved by more than 60%.
Owner:HEILONGJIANG DILONG PHARM CO LTD

Electromagnetic narrow pulse high-precision power measurement system and method

The invention provides an electromagnetic narrow pulse high-precision power measurement system and measurement method, the measurement system is provided with a standard horn antenna and a microwave power measurement device, and the microwave power measurement device is connected with the standard horn antenna through a radio frequency cable; the measurement method comprises the steps of calibration source full-temperature output power calibration, wired link insertion loss measurement, calibration signal digital acquisition processing, electromagnetic narrow pulse signal acquisition processing and electromagnetic narrow pulse power calculation. The method is more suitable for power measurement of narrow pulse microwave signals, eliminates the influence of temperature on power measurement, can provide powerful support in military application and civil application, and has wide and important application prospects and value.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Heavy metal detection method applied to express packaging material

The invention discloses a heavy metal detection method applied to an express packaging material. The method comprises the following steps: S1, taking and crushing the express packaging material; s2, adding a composite acid-chitinase mixed solution into the digestion tank; s3, performing microwave digestion; s4, putting the digestion solution obtained in the S3 into a centrifugal tube, adding an extracting agent which takes HP-beta-CD and DTPA as double ligands for synergistic extraction, and extracting to form a Pb < 2 + >-DTPA-HP-beta-CD ternary complex; s5, centrifuging the centrifugal tube extracted in the step S4, taking supernate, and carrying out ICP-MS (Inductively Coupled Plasma Mass Spectrometry) detection to obtain the heavy metal dissolution amount and the heavy metal dissolution rate; through the pulse type microwave digestion and extraction integrated design, the thermal and non-thermal effects of microwaves directly reinforce the chemical action of composite acid, the digestion time is shortened, the digestion completeness is improved, and the trace heavy metal detection selectivity and kinetic efficiency in a complex environment are improved.
Owner:NATIONAL INSTITUTE OF METROLOGY CHINA

Production technology of anthocyanin-rich high-fiber fermented blueberry powder

The invention discloses a production technology of high-fiber fermented blueberry powder rich in anthocyanin. The production technology comprises the following steps: pulping blueberries, carrying out superfine grinding, carrying out synergistic fermentation with bacteria and enzymes, carrying out low-frequency high-power pulse microwave treatment, carrying out low-temperature vacuum spray drying, and packaging to obtain the high-fiber fermented blueberry powder. Through application of technologies such as superfine grinding, bacterium-enzyme synergistic fermentation and low-frequency high-power pulse microwave assisted anthocyanin stabilization, blueberry anthocyanin is promoted to be effectively released from cells, the stability of anthocyanin in the product is improved, the taste of the product is obviously improved, nutrient absorption of the product is improved, particularly absorption of functional components is improved, and the grade of the product is improved; the core competitiveness of the product is improved, and the product has a wide market prospect.
Owner:JIANGSU ACAD OF AGRI SCI

Apparatuses and methods for producing covetic materials using microwave reactors

Apparatuses and methods for producing covetic materials by exciting a hydrocarbon gas with pulse microwaves to form hydrocarbon radicals in a hot first region of a microwave reactor. Graphene nanoplatelets are formed by the nucleation, growth, and assembly of the hydrocarbon radicals, and contact a metal melt introduced downstream of the hot region to produce a mixture of molten metal and graphene nanoplatelets which assemble in-flight to form covetic materials.
Owner:LYTEN INC

Preparation method of polygonatum kingianum yellow rice wine through multistage physical wall breaking and microwave aging acceleration

The invention discloses a preparation method of polygonatum kingianum yellow rice wine through multistage physical wall breaking and microwave aging acceleration, and belongs to the technical field of food processing and biology. According to the method, yellow wine is used as base wine, and steam explosion pretreatment, ultrahigh pressure pretreatment and infiltration, enzymolysis, separation and clarification and pulse microwave aging accelerating technologies are sequentially adopted; the method comprises the following steps: firstly, performing multi-stage physical wall breaking on a rhizoma polygonati raw material by utilizing steam explosion and an ultrahigh pressure technology, and forcefully pressing yellow wine into rhizoma polygonati in combination with ultrahigh pressure infiltration so as to realize rapid dissolution of effective components; then macromolecular substances in the rhizoma polygonati are degraded through enzymolysis, and flavor fusion is promoted; and finally, accelerating aging of the wine body by using a pulse microwave technology. Various modern physical and biological technologies are effectively combined, the extraction rate of effective components in rhizoma polygonati can be remarkably increased, the production period is shortened to be within 7 days from several months, the fusion degree of the rhizoma polygonati and the yellow rice wine flavor and the product quality are greatly improved, and the rhizoma polygonati yellow rice wine is better in taste and more stable in quality.
Owner:INST OF AGRI ENG TECH FUJIAN ACAD OF AGRI SCI

Production method of probiotic fermented blueberry juice

The invention discloses a production method of probiotic fermented blueberry juice, and belongs to the technical field of deep processing of agricultural products. The preparation method comprises the following steps: juicing blueberries, blending, carrying out combined treatment on high-power pulse microwaves and intensive pulse light, inoculating lactic acid bacteria, carrying out temperature-controlled fermentation, and filling to obtain the probiotic fermented blueberry juice. By utilizing the modern high and new technology, the absorptivity of nutritional ingredients and active factors in the probiotic fermented blueberry juice is improved, the grade of the probiotic fermented blueberry juice is improved, the core competitiveness of the probiotic fermented blueberry juice is improved, and the probiotic fermented blueberry juice has a wide market prospect.
Owner:JIANGSU ACAD OF AGRI SCI