257results about How to "Delay decay" patented technology

An adaptive noise canceling system for extracting a desired signal, comprising an adaptive noise cancellation filtering circuit for suppressing noise from a first input signal using a second input signal as a reference signal, and generating an output filtered signal representing the desired signal; and an adaptive noise cancellation controller for receiving the first and second input signals and the output filtered signal, and generating an output control signal for controlling coefficients of at least one adaptive filter of the adaptive noise cancellation filtering circuit, comprising a silence detector unit for detecting whether an acoustical signal is present in the input signals and the output filtered signal, and generating a first output signal which indicates whether the acoustical signal is present; a signal detector unit for detecting whether the desired signal is present in the input signals and the output filtered signal, and generating a second output signal which indicates whether the desired signal is present; and an adaptive noise cancellation filter (ANCF) controller unit for receiving the first and second output signal to determine the characteristic of the input signals, and generating the output control signal which represents an updated coefficient parameter for updating the coefficients of the at least one adaptive filter of the adaptive noise cancellation filtering circuit.

A method for detecting an object using visible light comprises providing a visible-light source having a function of illuminating an environment. The visible-light source is driven to emit visible light in a predetermined mode, with visible light in the predetermined mode being emitted such that the light source maintains said function of illuminating an environment. A reflection / backscatter of the emitted visible light is received from an object. The reflection / backscatter is filtered over a selected wavelength range as a function of a desired range of detection from the light source to obtain a light input. The presence or position of the object is identified with the desired range of detection as a function of the light input and of the predetermined mode.

A method for detecting an object using visible light comprises providing a visible-light source having a function of illuminating an environment. The visible-light source is driven to emit visible light in a predetermined mode, with visible light in the predetermined mode being emitted such that the light source maintains said function of illuminating an environment. A reflection / backscatter of the emitted visible light is received from an object. The reflection / backscatter is filtered over a selected wavelength range as a function of a desired range of detection from the light source to obtain a light input. The presence or position of the object is identified with the desired range of detection as a function of the light input and of the predetermined mode.

The invention discloses a multi-gap self-swelling strong-air-current longitudinal blow-out arc anti-thunder protecting device which comprises a longitudinal blow-out arc device arranged at an insulator string earthing terminal through a grounding side connecting hardware fitting, a grounding side electrode arranged on the longitudinal blow-out arc device, and a guide line side electrode arranged on an off-contact guide line. A protecting gap formed by the grounding side electrode and the guide line side electrode is parallel to an insulator string. The longitudinal blow-out arc device comprises an arc extinguishing device body and arc extinguishing tubes. The arc extinguishing device body is provided with a plurality of through holes for placing the arc extinguishing tubes. An angle formed by two arc extinguishing tubes which are arranged in the arc extinguishing device body is 90 degrees, and end portions of the two arc extinguishing tubes are in contact with each other. Each arc extinguishing tube is in a spiral shape. The grounding side electrode is connected with a first arc extinguishing tube through a guide line, and the grounding side connecting hardware fitting is connected with a last arc extinguishing tube through a guide line. The device is simple in structure, low in manufacture cost, safe and reliable, effectively reduces the power system transmission line thunderstrike tripping rate and the accident rate, and improves the stability of a power system.

The invention relates to a flexible intracranial cortex microelectrode chip, which comprises a flexible substrate, a microelectrode unit, an electrode lead which is electrically connected with the microelectrode unit, a lead welding spot which is electrically connected with the electrode lead, and an insulating layer which is arranged on the flexible substrate and covers the electrode lead, wherein the microelectrode unit, the electrode lead and the lead welding spot are arranged on the flexible substrate. The invention also relates to a method for preparing the flexible intracranial cortex microelectrode chip, a packaging structure for the flexible intracranial cortex microelectrode chip, and a method for packaging the flexible intracranial cortex microelectrode chip. The flexible intracranial cortex microelectrode chip has high flexibility and can be well adhered to cerebral cortex, information is detected, and electrical stimulation is applied. Better flexible matching between the flexible intracranial cortex microelectrode chip and the cerebral cortex can be realized, and in the long-term implantation process, attenuation of organism response on performance of the electrode is effectively reduced; and moreover, tissue damage, inflammatory response, incrustation, hemorrhage and other conditions are avoided.

The present invention is deburring method and apparatus based on laser shock wave technology and relates to laser machining technology. The present invention adopts the laser induced shock wave as the force source for deburring, and has laser generator controlled with one controller to generate laser pulse, light guiding system irradiating the laser pulse onto the absorbing layer of the reflecting cone, the absorbing layer to absorb laser energy to vaporize and ionize to form plasma, the plasma to further absorb laser energy to explode and to generate high amplitude shock wave eliminating burr in the surfaces, including inner surfaces, of parts. The present invention can eliminate burr, strengthen the surface, raise the hardness, lower the surface roughness and increase the service life of parts.

A relief valve having a structure where a cavitation phenomenon is prevented is simply and reliably operated. A thin center section (31) and a stationary section (32) are provided on an elastic diaphragm (30) placed inside a partition member (6), the stationary section (32) is fixed in position, and a relief valve (33) is formed integrally with the outer periphery of the stationary section (32). The relief valve (33) has a slope surface (34) on the auxiliary liquid chamber (7) side and also has a depression section (35) opened to the main liquid chamber (5) side. The rigidity of the relief valve (33) varies in the circumferential direction. When the pressure inside the main liquid chamber (5) is negative, operation liquid in the auxiliary liquid chamber (7) opens the relief valve (33) to leak it to the main liquid chamber (5), preventing occurrence of a cavitation phenomenon. Since the relief valve (33) is integrally formed with the elastic diaphragm (30), the relief valve for cavitation prevention can be easily produced, does not affect the existing structure, facilitates assembly and tuning, and can be realized at low cost. Antivibration performance is maintained constant without affecting performance of an orifice path.

The invention relates to a vegetation support (10) consisting of a mat of entangled organic fibers (14) which form said vegetation support (10). A substrate (20) is introduced into the hollow spaces of the mat (12) and a plant material (22) able to germinate, especially seeds, spores, sprouts or the like, is planted on an upper side (16) of the mat (12). The fibers (14) of the mat (12) are secured against detachment from the mat (12). The inventive vegetation support (10) is characterized in that the mat (12) fibers (14) are coconut fibers and that a plant-compatible binding agent (28) is used to prevent the fibers (14) from becoming detached from the mat (12). The binding agent is applied to the surfaces of at least a part of the fibers (14) and ensures that the fibers (14) of the mat (12) are at least partly glued to each other.

The invention relates to a low-attenuation bending insensitive single mode fiber which comprises a core layer and wrapping layers. The low-attenuation bending insensitive single mode fiber is characterized in that the relative refractive index difference delta1 of the core layer ranges from 0.30% to 0.38%, the radius R1 of the core layer ranges from 3.5 micrometers to 4.5 micrometers, the four wrapping layers are arranged outside the core layer, the first wrapping layer is a first inner wrapping layer tightly surrounding the core layer, the relative refractive index difference delta2 of the first wrapping layer ranges from -0.02% to 0.02%, the radius R2 of the first wrapping layer ranges from 6.5 micrometers to 8.5 micrometers, the second wrapping layer is a second inner wrapping layer tightly surrounding the first inner wrapping layer, the relative refractive index difference delta3 of the second wrapping layer ranges from -0.02% to 0.02%, the radius R3 of the second wrapping layer ranges from 8 micrometers to 11 micrometers, the third wrapping layer is a downwards-concave wrapping layer tightly surrounding the second inner wrapping layer, the relative refractive index difference delta4 of the third wrapping layer ranges from -0.5% to -0.2%, the radius R4 of the third wrapping layer ranges from 12 micrometers to 20 micrometers, and the fourth wrapping layer is an outer wrapping layer tightly surrounding the downwards-concave wrapping layer and is a pure quartz glass layer. The low-attenuation bending insensitive single mode fiber can be completely matched with a G.652.D optical fiber, and therefore the low attenuation, the large effective area and the bending resistance can be better unified.

The invention belongs to the field of far infrared energy-saving coating used for a high-temperature industrial furnace, which particularly relates to a nanometer silicon carbide-series infrared radiation coating and a preparation method thereof. The coating is composed of a powder radiation material, a binding material, a slurry accessory ingredient and water, wherein the mass ratio of the waterto the powder radiation material is (0.5-2):1; the binding material is 10-30% of the total mass of powder radiation material; the slurry accessory ingredient is 0.1-3% of the total mass of powder radiation material; and the powder radiation material is composed of nanometer silicon carbide powder, zirconia powder, chromium hemitrioxide powder, ferric oxide powder, nickel oxide powder, bentonite powder and siliceous dust powder. The infrared energy-saving radiation coating disclosed by the invention has the advantages of high radiation coefficient and excellent thermal shock resistance. After high-temperature sintering, a sintering layer is formed on a refractory brick or cellucotton, the sintering layer can be firmly adhered on the surface of the lining of a kiln to perform the energy-saving effect on increasing radiant heat utilization and reducing heat loss.

The invention relates to a zoom lens imaging apparatus and method. The apparatus includes at least two zoom imaging units, a channel selector connected with the zoom imaging units; and a control unit connected with the zoom imaging units and the channel selector. Focal lengths of the zoom imaging units increase progressively in sequence, and the focal lengths of two adjacent zoom imaging units partially overlap. The channel selector is used for selecting and taking signals outputted by at least one zoom imaging units as the output. The control unit is used for controlling the focal length between the zoom imaging unit imaging at the moment and the zoom imaging unit imaging at the next moment to sequentially overlap with focal lengths between each two zoom imaging units within the former focal length, and also for controlling the channel selector to switch from taking the zoom imaging unit imaging at the moment as a signal input end sequentially to taking the zoom imaging unit imaging at the next moment as the signal input end. The zoom lens imaging apparatus and method can be used for reducing the attenuation effects of a zoom lens with a wide-range focal length on the environmental illumination.

The invention discloses an LED light source module which comprises a substrate, a fluorescent powder layer, a lens module and an LED light emitting chip arranged on the substrate. The lens module comprises a main body, a frame and a lens unit, wherein, the edge of the main body stretches towards one side to form the frame, and the main body partially protrudes to form the lens unit; the substrate is covered at the outer side of the frame to form an enclosed box body with the lens module; the LED light emitting chip is arranged in the box body; and the fluorescent powder layer is arranged on the inner surface of the main body. By adopting the LED light source module of the technical scheme of the invention, the substrate and the lens module form the enclosed box body and the fluorescent powder layer is coated on the inner surface of the lens module so that the fluorescent powder layer is far away from the LED light emitting chip, thus being beneficial to lowering the temperature of the fluorescent powder layer, improving the excitation efficiency and the service life of fluorescent powder in the fluorescent powder layer, and increasing the light extraction ratio; and meanwhile by adopting an inwards concave hollow structure of the lens module, the fluorescent powder can be directly dripped on the inner surface of the lens module to form the fluorescent powder layer, so a complicated powder dispersing process is not required, thus achieving simple operation.

The invention belongs to the field of healthcare products and particularly relates to compound vitamin tablets and a preparation method thereof. Each compound vitamin tablet provided by the invention comprises a tablet core and a film coating layer, wherein the tablet core is mainly prepared from vitamin A acetate, sodium ascorbate, DL-alpha-tocopheryl acetate, nicotinamide, calcium pantothenate, thiamine hydrochloride, riboflavin, pyridoxine hydrochloride, folic acid, D-biotin, zinc oxide, sodium selenite, pre-gelatinized starch, maltodextrin, microcrystalline cellulose and silicon dioxide; and the film coating layer is mainly prepared from hydroxypropyl methyl cellulose, polyethylene glycol 4000, polyvinylpyrrolidone, titanium dioxide, castor oil and water. The compound vitamin tablets provided by the invention have the advantages of high safety and abundant nutrition and can provide the vitamins and minerals necessary for pregnant women so as to enhance immunity; meanwhile, the compound vitamin tablets can effectively reduce the abortion rate of pregnant women and oaf incidence; and therefore, the compound vitamin tablets are a perfect compound vitamin product for pregnant women.

Emergency lighting for an aircraft employs a photoluminescent substrate that is activated by exposure to light wherein the substrate has portions with different light emitting characteristics whereby, in the absence of activating light, a first substrate portion provides a higher light output than a second substrate portion for an initial period after which the second substrate portion provides a higher light output than the first substrate portion.

A screwdriving tool includes a gear head and a drive arm. The gear head forms a gear housing, in which a free wheel or ratchet gear having an output rotational axis is arranged. A front side of the gear head includes an output coupling, in the shape of a polygon. The drive arm can be pivoted about a pivot axis, which is substantially transverse to the output rotational axis, from a quick-action screwdriver position, in which the drive arm is in the output rotational axis, into a power-action screwdriver position, in which the drive arm extends substantially transversely to the output rotational axis and can be fixed in both pivot positions by detents. The detents can be moved from a detent position into a release position by means of an actuating member associated with the drive arm.

The invention discloses a tubular membrane filtering device capable of automatically scrubbing the membrane surface. The tubular membrane filtering device comprises a tank body, a tubular membrane filtering component, a solution inlet, a concentrated solution outlet, a permeated solution outlet and an automatic membrane surface scrubbing system, wherein the tubular membrane filtering component which is not contacted with the inner wall of the tank body is arranged inside the tank body; the solution inlet and the concentrated solution outlet are communicated with gap spaces of the tank body and the tubular membrane filtering component; and the permeated solution outlet is communicated with the interior of the tubular membrane filtering component. The tubular membrane filtering device capable of automatically scrubbing the membrane surface can obviously restrain membrane pollution, remarkably delay attenuation of membrane flux and make an effect of separating materials from solution better and efficiency higher, is easy to operate, has low production cost and running cost, and can be widely applied to a plurality of fields of biological engineering, medicaments, foods, beverages, waste water treatment and the like.

The invention provides a rechargeable zinc-manganese battery and a preparation method thereof. A positive electrode adopts a linear alpha-MnO2 material to replace a traditional amorphous manganese dioxide material, and the linear alpha-MnO2 material has a uniform structure. The large tunnels and vacancies in MnO2 increase the contact between the active material and the electrode, reduce the internal resistance of the battery, and improve the diffusivity of protons. The larger aspect ratio of MnO2 can make the preferred orientation degree of the material higher, thus improving the rate performance of the battery. Stable structure, not easy to collapse, the activity can be maintained at a high level, the decay rate is slow, more conducive to the battery cycle performance. In accordance withthat present invention, the preparation method of the alpha-MnO2 material is simple and feasible, the experimental reproducibility is good, the raw materials used are cheap and easy to obtain, the linear alpha-MnO2 material has a uniform structure, large aspect ratio, and stable structure, and is not easy to collapse and slow in attenuation rate.

The invention provides essence cream realizing repairing at night. The essence cream realizing repairing at night comprises allantoin, EDTA-2NA, acrylic acid (ester) / C10-30 alkanol acrylate cross-linked polymer, hyaluronic acid, hydrogenated polyisobutene, cetyl ethyl hexanoate, glyceryl stearate / PEG-100 stearate, polydimethylsiloxane, C14-22 alcohol / C12-20 alkyl glucoside, shea butter oil, tocopherol acetate, polydimethylsiloxane / dimethiconol, methyl silanol mannuronic acid ester / sodium methyl hydroxybenzoate / sorbic acid / propyl hydroxybenzoate, water / butanediol / 1,2-hexanediol / beta-glucan / phenoxyethanol, water / phenoxyethanol / algae extract, nicotinamide, water / propylene glycol / flos buddlejae extract, and dipotassium glycyrrhizinate. The essence cream belongs to emulsified ointment essencewith the efficacies of repairing skin injuries and realizing the moisturizing effect. The essence cream system realizing repairing at night is stable, realizes permeation and absorption easily, is refreshing but not greasy, can effectively repair injuries caused to the skin by sunlight, can balance the skin color, can resist skin ageing, realizes effective moisturizing, and realizes regenerating and nursing at night.

The invention relates to a display device. The display device comprises a liquid crystal display panel and a light source. The liquid crystal display panel comprises an array substrate, an opposite-box substrate and a liquid crystal layer. A polymer network formed by polymerizable monomers is mixed in the liquid crystal layer. The display device further comprises a light guide assembly arranged on the side, away from the opposite-box substrate, of the array substrate. The light source is arranged on the side face of the light guide assembly and used for emitting light towards the light guide assembly. The light guide assembly is used for scattering the light emitted by the light source to form an area light source giving out light towards the liquid crystal display panel. The included angle between the direction of light, emitted to the liquid crystal layer, of the area light source and the thickness direction of the liquid crystal display panel is larger than a total reflection critical angel generated when any light is emitted into outside air from the array substrate or the opposite-box substrate. According to the display device, the display uniformity can be improved while the contrast is improved.

The invention discloses a sensitizer, specifically an emulsified explosive energetic sensitizer, and particularly relates to a sensitizer formed by coating high-energy metal powder on porous silicon dioxide hollow microspheres and a preparation method of the sensitizer. The sensitizer mainly comprises the following components in parts by weight: 50-65 parts of a metal powder, 2-10 parts of a coating agent, and 30-45 parts of silicon dioxide. According to the preparation method provided by the invention, the high-energy metal powder for coating the porous silicon dioxide hollow microspheres is prepared through a four-step method, and is added into an emulsion matrix, and the high-energy metal powder and the emulsion matrix are mixed uniformly to prepare a high-strength emulsion explosive; shells of the porous silicon dioxide hollow microsphere of the energetic sensitizer achieve the effect of a sensitizer, and the high-energy metal powder inside the energetic sensitizer achieves the effect of an energetic additive. The sensitizer and the high-energy metal powder are combined into a whole body, the brisance of the emulsified explosive is improved under the condition that the sensitivity of the explosive is not influenced; moreover, the raw materials are wide in source, the cost is low, and the production process is simple, so that the sensitizer has a very good market prospect.

The invention discloses a method of extracting lignins different in molecular weight from bamboo pulping black liquor. The method includes: filtering the bamboo pulping black liquor, adjusting pH to 1.5 to 2.0, and acquiring lignin by settling; drying the lignin, dissolving the lignin with 90% acetic acid to obtain lignin acetic acid solution of low viscosity, and subjecting the lignin acetic acid solution to ultrafiltration and grading with ultrafiltration membranes having different cut-off molecular weights; and subjecting ultrafiltrate and cut-off liquid to precipitating with distillate according to the ratio being 1:10 and purifying with dichloroethane / water, diethyl ether and petroleum ether solvents to obtain lignins different in molecular weight distribution range. The pH value of the bamboo pulping black liquor of high viscosity is adjusted with hydrochloric acid to precipitate the lignin therein, the lignin is dissolved with the 90% acetic acid, and the lignin acetic acid solution is of low viscosity and is directly graded with the ultrafiltration membranes to separate the lignins; the method has the advantages that stock liquor needs no dilution, membrane flux is great, attenuating speed is low, a membrane component is simple to maintain, and the industrial applicability is high.

The invention relates to a processing technology of sugarcane concentrated juice. The sugarcane concentrated juice is processed by taking sugarcanes as raw materials and performing six steps, namely juicing, coarse filtration, pre-sterilization, enzyme inactivation, ultrafiltration by a ceramic membrane, vacuum concentration and high-temperature instant sterilization. The sugarcane concentrated juice prepared by the processing technology provided by the invention has clear and transparent color and luster, rich aroma, and sweet and delicious taste, and can keep the original flavor and nutritional components of the sugarcanes; and furthermore, the precipitation of a precipitate and the production of turbidity are avoided in the storage period. By adopting the processing technology provided by the invention, the technical problems of relatively high loss of flavor substances and the nutritional components in the production process of the sugarcane concentrated juice, browning in the processing and storage processes, deterioration of the sugarcane juice in the enzymolysis process, easiness in formation of membrane scales to cause blockage of membrane pores when the organic membrane is used for ultrafiltration and clarification and the like are solved.

The invention discloses an ionic conductive polymer diaphragm for a lithium-sulphur battery, and a preparation method and application thereof. The diaphragm is mainly composed of a battery diaphragm and an ionic conductive polymer layer attached to the surface of the battery diaphragm. The diaphragm disclosed by the invention has lithium ion permselectivity and has good blocking effect to multi-sulphur anions; the lithium ion mobility of the polymer diaphragm is close to 1; the shuttling effect of the lithium-sulphur battery in a cyclic process can be effectively reduced; attenuation of the lithium-sulphur battery is inhibited; simultaneously, the effect of reducing side reaction due to shuttling of multi-sulphur anions can be realized; impedance is prevented from being further increased; and an effective method is provided for application of the lithium-sulphur battery.

A short optical glass is disclosed which does not comprise any silver, copper, thallium, lead or boron and is particularly suited for the application imaging, projection, telecommunication, optical information technology, and / or laser technology, also particularly suited for fiber applications (light guides or imaging guides). Preferably the glass has a refractive index of 1.55≦nd≦1.65 and an Abbe coefficient of 48≦vd≦57 and also has good attenuating and ion exchange characteristics, good chemical stability and good crystallization stability. The glass comprises 35 to <50 wt.-% SiO2; 1 to 10 wt.-% Al2O3; 5 to 15 wt.-% Na2O+K2O+CS2O+Li2O; 20 to 30 wt.-% BaO; 0 to 15 wt.-% ZnO; 0 to 10 wt.-% La2O3; 0 to 10 wt.-% ZrO2; 0 to 6 wt.-% P2O5; 0 to 8 wt.-% MgO+CaO+SrO; 0 to 3 wt.-% of other oxides, and Cs2O<1, Li2O<1, and TiO2<1 wt.-%.

The transparent composite metal dielectric material consists of two inducing layers and one functional layer between the two inducing layers and features that each inducing layer consists of two layers of different transparent dielectric film and the two inducing layers may have different optical thickness. The function layer may have doped inducing layer material to form multiple quantum well structure. By means of multiple reflection and quantum well-like resonant effect, the composite material anti-reflects the electromagnetic wave in required wave band while reflecting electromagnetic waves of other wavelengths. The present invention may be used as windoe material or transparent body material a well as in producing metal semiconductor photoelectronic detector and other relevant device.

The invention discloses a filter unit for a dark pipe for saline-alkali soil. The filter unit comprises a pervious layer, a dressing layer and a water filtering layer, the pervious layer is wrapped with the dressing layer, and the dressing layer is composed of PVC or PE prilling materials with the diameters ranging from 0.5 cm to 0.6 cm; the dressing layer is wrapped with the water filtering layer. According to the technology, the water filtering layer formed by thick sand and straw serves as a main filtering layer, so that large particles and sludge can be effectively blocked; the dressing layer serves as an auxiliary layer so as to further filter water flow flowing through the water filtering layer, and then water enters the dark pipe through the pervious layer, so that small particles can be effectively prevented from entering the dark pipe, and blocking is prevented; the straw and the thick sand are adopted, so that material selection is convenient, and the cost is reduced; the straw rotting speed is low, the effective using time can be guaranteed, supplementing is convenient, and soil can be improved after straw rots.

The invention provides a preparation method of a special low-smoke halogen-free flame retardant cladding layer material for a butterfly-shaped introduction cable of an access network. The preparation method comprises the following steps of: (1) proportioning the components of the cladding layer material in parts by weight: 5-15 parts of high-fused ethylene-vinyl acetate copolymer, 5-15 parts of low-fused ethylene-vinyl acetate copolymer, 5-15 parts of polyethylene, 55-65 parts of a fire retardant, 10-20 parts of compatilizer, 2-3 parts of ultra-high molecular weight silicone, and 0.3-0.8 part of anti-oxygen; adding the components in a milling machine for mixing for 8-12 minutes, and discharging when the mixing temperature reaches 135-150 DEG C; (2) feeding the mixture into a double-screw-rod extruding machine, plastifying through double screw rods, and pelleting through a single screw rod, wherein for all the sections of the screw rods, a feeding section has a temperature of 90-110 DEG C, a transportation section has a temperature of 120-130 DEG C, a plastifying section has a temperature of 130-140 DEG C, and a machine head has a temperature of 135-145 DEG C; and pelleting is carried out by using an air cooling and hot cutting process; and finally drying the made particles to obtain a finished product. The cladding layer material manufactured by the invention is used as a special material of a rubber-insulated optical cable, and has the advantages of good material flowing property, good binding property and good product quality. Furthermore, the optical attenuation degree can be greatly reduced.

The invention relates to an energetic sensitizer for an emulsion explosive, in particular to an energetic additive coated with hollow microspheres for the emulsion explosive, and belongs to the fieldof energetic materials. The multi-core hollow energetic microspheres for the emulsion explosive are prepared from the following components in parts by weight: 10-50 parts of polymer monomers, 5-15 parts of an expansion agent and 5-80 parts of an energetic additive. A preparation method comprises the following steps: firstly, the polymer monomers, an initiator, a cross-linking agent and a foaming agent are mixed into an oil phase, then the energetic additive is added to the oil phase, the mixture is evenly mixed and then is dispersed in a water phase and suspended in a high-pressure reactor forpolymerization, heating is performed for curing, and thermal expandable multi-core composite energetic microspheres are obtained; finally, heating is performed for foaming and expanding, cooling is performed, and the multi-core hollow energetic microspheres are obtained. The multi-core hollow energetic microspheres can have dual effects of hot spots and the energetic additive in the emulsion explosive, and a shell can improve storage stability of the energetic additive and safety of the high-power emulsion explosive.