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42results about How to "With regulation" patented technology

Ordered structure array of two-dimensional hollow balls and preparing method thereof

The present invention discloses an ordered structure array of two-dimensional hollow balls and a preparing method thereof. The array is a single-layer hollow ball array which is provided with an ordered hexagonal arrangement on a substrate. The outer diameter of each hollow ball in the single-layer hollow ball array is 220nm-10.8mu m. An outer surface of each ball is a rough surface. Each hollow ball is composed of a gold metal inner surface and metal gold or polypyrrole or zinc oxide which is coated on the gold metal inner surface. The rough surface is composed of particle-shaped objects or vertical rod-shaped objects. The method comprises the following steps: performing ion sputtering on a conductive substrate which is provided with a single-layer colloid crystal template for depositinga gold film and obtaining a gold film wall array; then placing the conductive substrate which is adhered with the gold film array into electrolyte; performing electrodeposition for 10s-3h with a deposition current density of -1.0-1.0Ma/cm2 for obtaining a complex array; then placing the complex array into a dichloromethane solvent for removing polystyrene colloid balls and preparing the ordered structure array of the two-dimensional hollow balls. The ordered structure array of the two-dimensional hollow balls can be widely used for the following fields: medicament engineering, cosmetic, biotechnology, photocatalysis, photonic device, etc.
Owner:ANHUI XINHE DEFENSE TECH JOINT CO LTD

Stacked paper folding structure with variable stiffness characteristic

The invention discloses a stacked paper folding structure with variable stiffness characteristics, which comprises a plurality of layers of paper folding tubes stacked up and down, each paper foldingtube comprises two symmetrically arranged paper folding plates, each paper folding plate comprises a plurality of basic units, the basic units are connected in sequence, each basic unit comprises n small planes and two large planes, n is an even number greater than 2, the width ratio of the large plane to the small plane is n/2, and the large plane and the small plane are parallelograms. Due to the fact that all layers of paper folding pipes of the stacked paper folding structure are different in rigidity, when the stacked paper folding structure is subjected to compression force from top to bottom, the stacked paper folding structure generates a layer-by-layer progressive buckling instability process, firstly, the paper folding pipe with the minimum rigidity is subjected to buckling instability, and then the paper folding pipe with the second small rigidity is triggered to be subjected to buckling instability; therefore, the paper folding pipe with the maximum rigidity is obtained through recursion, and then the variable rigidity characteristic of the stacked paper folding structure is achieved. According to specific requirements, multiple layers of paper folding pipes with different rigidities can be stacked, and multiple variable stiffness characteristics are achieved.
Owner:GUANGZHOU UNIVERSITY

L-band three-cavity high-power microwave device

The invention discloses an L-band three-cavity high-power microwave device, which comprises a circular waveguide sleeve and an inner conductor coaxial with the circular waveguide sleeve. A cathode coaxial with the circular waveguide sleeve is arranged at one end in the circular waveguide sleeve. The opening of the cathode is annular, the inner diameter of the cathode is 60mm, and the outer diameter of the cathode is 69mm. The circular waveguide sleeve is sequentially provided with a reflection cavity, a resonant cavity and an extraction cavity with the same inner diameter in the electron beamtransmission direction, and the reflection cavity, the resonant cavity and the extraction cavity are annular grooves formed in the circular waveguide sleeve. The axial length of the microwave device is 130mm, the maximum diameter of the microwave device is 150mm, and the diameter of the inner conductor is 40mm. The cathode emits an annular electron beam with the beam intensity of 7.0kA, the innerdiameter of 60mm and the outer diameter of 69mm under a 400KV voltage, the annular electron beam is transmitted in the microwave device under the guidance of a 0.4T axial magnetic field, and L-band high-power microwaves with the frequency of 1.92GHz are generated through radiation within one pulse time. The L-band three-cavity high-power microwave device has the advantages of being small in size,light and easy to adjust.
Owner:INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS

Two-dimensional multi-shell hollow sphere ordered structure array and preparation method thereof

The invention discloses a two-dimensional multi-shell hollow sphere ordered structure array and a preparation method thereof. The array is a single-layer hollow sphere array orderly and hexagonally arranged on a conductive substrate, wherein the outer diameter of each hollow sphere is between 230 nanometers and 10.7 mu m; the outer surface of each hollow sphere is a rough surface; each hollow sphere consists of a metal gold inner wall and more than two layers of different materials alternatively covered on the metal gold inner wall; and the rough surface consists of particles. The method comprises the following steps of: performing ion sputtering on the conductive substrate on which a single-layer colloidal crystal template is arranged to deposit a gold film; putting the conductive substrate to which a gold film wall is adhered into an electrolyte; electrically depositing under the deposition current density of between -1.0 mA / cm<2> and 1.0 mA / cm<2> for 10 seconds to 3 hours to obtaina single-layer composite array; putting the single-layer composite array into different electrolytes for more than one time; electrically depositing under the same technological condition; and putting the single-layer composite array into a methylene dichloride solvent to remove polystyrene colloidal spheres to obtain a product. The array and the method can be widely applied to the fields of pharmaceutical engineering, cosmetics, biotechnology, photo-catalysis, photonic devices and the like.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Metastructure surface integrated with three-dimensional convex top layer structure

ActiveCN113193376AImprove isotropyGood electromagnetic wave manipulation abilityAntennasModulation codingMechanical engineering
The invention discloses a metasurface integrated with a three-dimensional protruding top layer structure, and belongs to the technical field of terahertz wave band metamaterials and metasurfaces. The metasurface structure unit of the metal hemisphere comprises a metal back electrode, a dielectric layer and a three-dimensional metal hemisphere structure layer which are arranged in sequence, and the dielectric layer is composed of a plurality of metal hemispheres by using a flexible material hemisphere unit structure. The three-dimensional metal hemisphere structure has good isotropy and has the characteristic that the three-dimensional metal hemisphere structure is insensitive to an incident plane wave angle in a terahertz wave band. And further in combination with the idea of communication modulation coding, a coding matrix is realized by combining and designing metamaterial unit arrays with different sizes, the RCS is effectively reduced, and effective regulation and control of the terahertz wave beam are realized. In the vicinity of 0.96 THz and 1.5 THz, two metal hemispherical top-layer metasurface surfaces can have good insensitive characteristics to an incident angle within an electromagnetic wave incident angle of 60 degrees, and terahertz waves can be effectively regulated and controlled.
Owner:BEIJING JIAOTONG UNIV

Device and method for measuring flexoelectric coefficient of thin film material with adjustable strain gradient

ActiveCN110988494BAvoid the problem of measuring non-uniform strain gradientsWith regulationElectrical measurementsThin membraneFilm material
The invention discloses a thin film material flexoelectric coefficient measuring device capable of regulating and controlling strain gradient and a method thereof. The device having a sandwich structure formed by two layers of matrix beams with the same lengths, widths and thicknesses and a test film which is arranged between the two layers of beams and has the same length and width as the beams comprises a four-point 1 / 4 bending clamp including two upper pressing heads and two stress supporting pieces, a small-load loading instrument for loading the four-point 1 / 4 bending clamp, a controllerbeing connected with the small-load loading instrument and being used for controlling the loading force and loading frequency, and a charge amplifier and an oscilloscope sequentially connected with the small-load loading instrument. Under loading control of four-point 1 / 4 bending clamp force application points, namely two upper pressing heads, regulation and control of strain gradient in flexoelectric coefficient measurement are realized; the method is simple, the structural model is low in cost and easy to implement, the difficulty of strain gradient control in flexoelectric coefficient measurement is reduced, and the difficulty of flexoelectric coefficient measurement of the thin film material is reduced.
Owner:XI AN JIAOTONG UNIV

An L-band three-cavity high-power microwave device

The invention discloses an L-band three-cavity high-power microwave device, which comprises a circular waveguide sleeve and an inner conductor coaxial with the circular waveguide sleeve; one end of the circular waveguide sleeve is provided with a cathode coaxial with the circular waveguide sleeve, and the cathode The opening of the cathode is ring-shaped, the inner diameter of the cathode is 60mm, and the outer diameter is 69mm; the circular waveguide sleeve is sequentially provided with a reflection cavity, a resonant cavity and an extraction cavity with the same inner diameter along the electron beam transmission direction, and the reflection cavity, the resonant cavity and the extraction cavity are The annular groove is set on the circular waveguide sleeve; the axial length of the microwave device is 130mm, the maximum diameter is 150mm, and the diameter of the inner conductor is 40mm; the intensity of the cathode emission beam is 7.0kA under the voltage of 400KV, the inner diameter is 60mm, and the outer diameter is 69mm The circular electron beam is transmitted in the microwave device under the guidance of the axial magnetic field of 0.4T, and the L-band high-power microwave with a frequency of 1.92GHz is radiated within a pulse time. The L-band three-cavity high-power microwave device of the present invention has the advantages of miniaturization, light weight and easy adjustment.
Owner:INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS

Ordered structure array of two-dimensional hollow balls and preparing method thereof

The present invention discloses an ordered structure array of two-dimensional hollow balls and a preparing method thereof. The array is a single-layer hollow ball array which is provided with an ordered hexagonal arrangement on a substrate. The outer diameter of each hollow ball in the single-layer hollow ball array is 220nm-10.8mu m. An outer surface of each ball is a rough surface. Each hollow ball is composed of a gold metal inner surface and metal gold or polypyrrole or zinc oxide which is coated on the gold metal inner surface. The rough surface is composed of particle-shaped objects or vertical rod-shaped objects. The method comprises the following steps: performing ion sputtering on a conductive substrate which is provided with a single-layer colloid crystal template for depositing a gold film and obtaining a gold film wall array; then placing the conductive substrate which is adhered with the gold film array into electrolyte; performing electrodeposition for 10s-3h with a deposition current density of -1.0-1.0Ma / cm2 for obtaining a complex array; then placing the complex array into a dichloromethane solvent for removing polystyrene colloid balls and preparing the ordered structure array of the two-dimensional hollow balls. The ordered structure array of the two-dimensional hollow balls can be widely used for the following fields: medicament engineering, cosmetic, biotechnology, photocatalysis, photonic device, etc.
Owner:ANHUI XINHE DEFENSE TECH JOINT CO LTD

Collector pipe type multifunctional heating equipment

The invention discloses collector pipe type multifunctional heating equipment comprising universal wheels, a screw pillar, a bearing plate net and a machine body. The universal wheels are welded withthe four corners of the bottom surface of the machine body, and the inner side of each universal wheel is provided with a hydraulic rod fixed to the bottom end face of the machine body; the lower endface of each hydraulic rod is welded with a support plate, and the inner bottom end of the machine body is provided with an electric heating pipe; the screw pillar is installed at the middle positionof the end face of one side of the machine body in a penetrating manner spirally, and the part, located on the inner side of the machine body, of the screw pillar is fixedly provided with a second magnet; the end, close to the second magnet, of the screw pillar is movably provided with a support plate, and the bearing plate net is in lap joint with the interior of the machine body through the support plate and a first magnet; and an overlap plate is arranged above the bearing plate net, and one side of the machine body is connected to a heat conduction pipe. The multifunctional heating equipment has the advantages of heat supply, utilization of heat generated by elements, holding and protection of heating items and the like, and is easy to operate, and portable and safe.
Owner:滨州高新材料产业园有限公司
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