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36results about How to "Manufacturable" patented technology

Continuum structure topology and shape dimension comprehensive optimization method

The invention relates to a continuum structure topology and shape dimension comprehensive optimization method. The method comprises the steps of meshing a design domain by utilizing a finite element thought and extracting node information of a unit; creating an optimization objective function, adding constraints and loads, and iteratively updating the relative density value of the design domain unit by calculating the sensitivity of the objective function and completing sensitivity filtering; when it is judged that the convergence condition is met, outputting a topological structure with a gray level unit; then setting the numerical value of a gray scale unit to be 1, and meanwhile, filling tiny holes in the structure to form an initial topological structure in a discrete 0-1 matrix form;introducing a boundary function to optimize the shape and size of the initial topological configuration, and finally obtaining an optimal design structure meeting constraint conditions. According to the method, the influence of a gray scale unit on the structure manufacturability in traditional topological optimization is solved, meanwhile, a boundary function is introduced to optimize the shape and size of the initial topological configuration so as to eliminate fine holes embedded into the structure, and the complexity of the continuum structure in the manufacturing process is reduced.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

Film having protein adsorption resistance and preparation method thereof

The invention discloses a film having protein adsorption resistance and a preparation method thereof. The film is a polymer of a zwitterionic monomer and covers the surface of an enzyme electrode. The film is prepared by polymerizing the zwitterionic monomer by virtue of electrically induced atom transfer free radical polymerization on the surface of an enzyme electrode. The film, which covers the surface of an enzyme electrode, has good protein adsorption resistance and meanwhile, the high-sensitivity detection through a sensor is ensured; an electrochemical means is fully utilized, the process is simple, the manufacturability is strong, the time is short and the film can be used for large-scale preparation; the thickness of the film can be controlled at 10-40 nm and good permeability is achieved; and at most 99% of non-specific protein adsorption can be reduced.
Owner:ZHEJIANG UNIV

Drug-resistance cell system for lung cancer and preparation method thereof

InactiveCN108118031AEffectively induce the formation ofManufacturableCulture processTumor/cancer cellsCell systemDrug resistance
The invention relates to the field of drug-resistance cell systems, and particularly relates to a drug-resistance cell system and a preparation method thereof. The method comprises the following steps: inoculating the lung cancer cells to a culture medium containing a 21-93nM lung cancer targeted drug; culturing until cells can normally live and multiply under the same concentration; improving andculturing at 50nM concentration difference; improving and culturing at concentration difference of every 100nM when the cell multiplying inhibiting concentration is 4 times of IC50; improving and culturing at concentration difference of every 1 microns when the drug sieving concentration is 8 times of IC50; and obtaining the drug-resistance cell systems for the lung cancer when the lung cancer cells can live and multiply in a cell culture system of 10 microns osimertinib. According to the method, the drug-resistance cell system is prepared on the basis of gradually increasing the concentration of drugs in the culture medium; the foundation is provided for later simulation of clinical drug resistance, researching of drug resistance mechanism of lung cancer targeted drugs, and developing ofeffective drug resisting drugs.
Owner:SHANGHAI CHEST HOSPITAL

Electrooptic modulator of periodically poled lithium niobate based on defect structure

The invention discloses a method for setting an electrooptic modulator for enabling an incident light wave polarization direction to rotate on the basis of an electrooptic effect. The method is characterized by comprising the step of introducing a defect structure in a lithium niobate crystal with a periodic structure. The defect structure is positioned at the middle of the crystal and has the width which is 2 times of the normal thickness. When a fundamental wave enters the crystal, the polarization direction gradually rotates, and rotates along the reverse direction after passing through a defect position; an emergence light wave exits in a form of keeping a polarization state same as the original light wave polarization direction and has a phase generating large change. The invention has the advantages of novel arrangement and feasible preparation, and can have a wide application prospect in the field of photo-communication.
Owner:NANJING UNIV

A high temperature super-conduct inductor, its preparing method and its application in the high-voltage power

The disclosed high-Q-value high-temperature superconductor inductor comprises a coil. Wherein, the coil is multi-layer, or one layer with solenoid winding, or serial multiple or one single-cake high-temperature superconductor induction coil unit, or serial multiple or one bi-cake high- temperature superconductor induction coil unit, or serial some or one bi-cake and single-cake high-temperature superconductor induction coil unit. Compared with prior art, this invention is simple, and can generate infinite-high-amplitude voltage.
Owner:南京索普超导科技有限公司

Manufacturing precision adjusting method based on zero-point positioner tool

The invention relates to a manufacturing precision adjusting method based on a zero-point positioner tool. A special adjusting ring with the inner diameter larger than the positioning circle of the zero-point positioner is manufactured and sleeves the positioning circle of the zero-point positioner, the middle mounting hole of a foundation plate is bored according to the positioning circle of thezero-point positioner, the diameters of other mounting holes are greater than the positioning circle of the zero-point positioner, through holes connected with the foundation plate are evenly distributed in the axial direction of the adjusting ring, threaded holes used for installing adjusting screws are evenly distributed in the outer circumference, the adjusting ring is used for adjusting the gap between the zero-point positioner and the mounting hole, the position of the zero-point positioner is measured in combination with a three-coordinate measuring machine, and correction is conducted if the position degree does not meet the tool technology requirement until reaching the requirement. According to the method, the three-coordinate measuring machine can online adjust the position of the zero-point positioner till the precision is the same as that of the three-coordinate measuring machine, the manufacturing process is simple, operation is easy and convenient, the positioning precision is high after adjustment and fixation, the capacity of manufacturing high-precision products can be achieved, and high generalization performance is achieved.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION

Multifunctional projection capacitor touch panel and manufacturing method thereof

The invention relates to a manufacturing method of a multifunctional projection capacitor touch panel. The multifunctional projection capacitor touch panel comprises an outer cover touch substrate, a driving substrate and a sensing feedback substrate. The outer cover touch substrate on the uppermost layer is made of tempered glass, transparent materials are sprayed or etched on the upper surface of the outer cover touch substrate, roughness and touch are improved, and outdoor intense light is resistant. The driving substrate is a PET (polyethylene terephthalate) or PMMA (polymethyl methacrylate) flexible substrate or glass substrate. The sensing feedback substrate is a glass substrate. Both the driving substrate and the sensing feedback substrate are provided with transparent conductive circuits. After the transparent conductive circuits are led to the lateral side by a circuit made from conductive materials on lateral side of the integral transparent conductive circuits, the driving substrate and the controller are connected, and the circuits are protected by transparent insulation materials coated thereon. The three substrates are glued by optical adhesives. The manufacturing method of the touch panel have the advantages of manufacturability, especially for products larger than 15 inches, yield rate is high, material waste is reduced, the sensing layer feels smoother when touched with fingers, and external force impact resistance of the three substrates is improved remarkably.
Owner:SHENZHEN ZHENGXING OPTOELECTRONICS TECH

Heating kettle

The invention relates to a heating kettle which comprises a kettle body and is characterized in that the kettle body comprises an outer-layer kettle body and an inner-layer kettle body; a sealed interlayer cavity is formed between the outer-layer kettle body and the inner-layer kettle body; a plurality of heat conducting pipes which are arranged in a frame shape and are communicated with the interlayer cavity are arranged at the periphery of the bottom of the outer-layer kettle body; the inside space of the heat conducting pipes which are arranged in the frame shape forms a combustion chamber; a charging opening is arranged at the initial end of the combustion chamber, and a smoke discharging outlet is arranged corresponding to the tail end of the combustion chamber; each heat conducting pipe is communicated with the bottom of an expansion oil tank through an oil inlet pipe; and an oil outlet pipe is arranged at the upper end of the outer-layer kettle body and is used for communicating the interlayer cavity and the expansion oil tank. The kettle body of the invention has large heating area, uniform heating and high temperature-rising speed, thereby preventing materials in the kettle body from being brown partially and sticking on the kettle to prolong the service life of the kettle body. The invention has the advantages of high heat utilization ratio, high material cooking speed and fuel saving and is especially suitable for processing and cooking aquatic products such as fishes, shrimps and the like.
Owner:刘增军

Cabin pressurizing oxygen supply system based on aerodynamic turbine driving

The invention discloses a cabin pressurizing oxygen supply system based on aerodynamic turbine driving. The cabin pressurizing oxygen supply system comprises a temperature sensor, a first electric control valve, a first heat exchanger, a water separator, a Venturi pressure stabilizer, a pressure sensor, a first flow sensor, an aerodynamic turbine, a second electric control valve, a hollow fiber membrane separator, a centrifugal compressor, a second flow sensor, a second heat exchanger, a third flow sensor and a controller. According to the invention, the centrifugal compressor driven by the aerodynamic turbine is used for recycling the oxygen-enriched gas of the hollow fiber membrane separator. The oxygen content of the cabin is increased, the pressure height of the cabin is conveniently increased, and the requirement for the structural strength of the cabin is effectively reduced; the air entraining amount of an engine air compressor is reduced, and the compensation loss of an airplane is reduced; the system has no motor drive and is feasible to manufacture; the aerodynamic turbine has the advantages of being high in rotating speed, small in size and large in flow and meets the technical requirement for cabin pressurization and oxygen supply.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Device for manually pouring foaming and carbonated beverages

The invention provides a device for manually pouring foaming and carbonated beverages. The invention relates to the food industry, and specifically to commercial equipment, and can be used for dispensing beer and other foaming and carbonated beverages from an isobaric container. The device includes a drainage channel (3) which is connected by means of a three-way flow switching device (2) to tubes for feeding gas and beverage, a node (4) for securing the neck of a plastic bottle (5) to the open end of the drainage channel (3), and a control valve (11) which is connected to the drainage channel (3). The three-way flow switching device (2) contains axially-symmetric cavities (13, 14) with seats, and, installed in the seats, spring-loaded valves (15, 16), the stems (19, 20) of which are kinematically connected to a shaped surface (21) of a rotating element (22). The rotating element (22) is rigidly connected to a control handle (23) for the alternating opening of the valves (15, 16) or for ensuring that the valves (15, 16) are in an initial closed state. The axially-symmetric cavities (13, 14) with seats are connected by means of inner channels (7, 8) to the drainage channel (3) and to the tubes for feeding gas and beverage. The three-way flow switching device (2) is installed in the housing of the device and can be removed therefrom. The axially-symmetric cavities (13, 14) with seats for accommodating the blocking components of the valves (15, 16) are positioned, in the inner channels (7, 8) of the flow switching device (2), transversely relative to the channels (7, 8). Portions of the stems (19, 20) of the valves (15, 16) with springs (17, 18) are positioned, and the rotating element (22) is positioned, in the cavities of the inner channels (7, 8) of the flow switching device (2). The valves (15, 16) with stems (19, 20) and the rotating element (22) which comes into contact with same are made of thermoplastic having an allowable compressive stress of 55-100 MPa, and a surface of the stems (19, 20) of the valves (15, 16) which comes into contact with the shaped surface (21) of the rotating element (22) is developed in the form of a portion of a second-order curve.
Owner:谢尔盖·亚历山德罗维奇·布奇克

A composite material layering scheme library establishing method taking layering compatibility into account

ActiveCN106021654AAvoid complex constraintsLayup Compatibility Problem SolvingGeometric CADConstraint-based CADProcess designComputer science
The invention provides a composite material layering scheme library establishing method taking layering compatibility into account. The method comprises the steps of encoding composite material layering schemes by using integers; traversing all combinations and establishing a composite material layering basic scheme library, which is a first-stage composite material layering scheme library; using binary numbers as layer breaking operation codes, and further obtaining a second-stage composite material layering scheme library on the basis of first-stage composite material layering schemes through layer breaking operation; performing layer breaking operation successively to obtain multiple stages of composite material layering scheme libraries. With the method, a composite material layering scheme library meeting the layering compatibility requirement can be obtained; effective transition in thickness changing areas of composite material layering is realized; a feasible layering scheme is provided for composite material layering process design; and foundation is laid for composite material structure optimization design.
Owner:BEIHANG UNIV

Test device for metal material creep under in-reactor radiation environment

The invention belongs to the technical field of nuclear reactor fuel, and particularly relates to a test device for metal material creep under the in-reactor radiation environment. The test device comprises a thin-walled circular pipe, a mandrel, a first end plug and a second end plug, the first end plug and the second end plug are fixedly connected with the upper end and the lower end of the thin-walled circular pipe correspondingly, the mandrel is arranged in the thin-walled circular pipe, one end of the mandrel is fixedly connected with the first end plug, gaps exist between the other end of the mandrel and the thin-walled circular pipe as well as between the other end of the mandrel and the second end plug, and the thin-walled circular pipe is pre-filled with pressure inert gas. The test device is simple in structure, convenient to realize and feasible in manufacturing, and the demands of cladding material creep test research and data acquisition under the irradiation environment in a test reactor and a commercial reactor can be met.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

E-TPU composite material single-electrode friction nano-generator and preparation method thereof

The invention discloses a preparation method of an E-TPU composite material single-electrode friction nano-generator, which comprises the following steps: 1) preparing TPU, general engineering plasticand a conductive filler, mixing the raw materials, uniformly stirring the raw materials, adding the mixture into an extruder, and carrying out melt mixing plasticization at a temperature 5-50 DEG C higher than the melting point of TPU; (2) after plasticizing is completed, carrying out underwater granulation or underwater brace granulation to produce TPU / general engineering plastic / conductive filler composite particles; and 3) putting the composite particles into a high-pressure reaction kettle, introducing a supercritical fluid, and carrying out pressure-maintaining permeation, pressure relief and foaming to obtain composite foam particles, thus making the product. The invention also discloses the single-electrode friction nano generator prepared by the preparation method. According to the prepared friction nano-generator, E-TPU and general engineering plastics form positive and negative friction materials, electron flow between a conductive network and the ground is caused by friction between the E-TPU and the general engineering plastics, voltage is generated, and each cell is a small friction nano-generator unit.
Owner:HUBEI UNIV FOR NATITIES

Square dual-frequency microstrip patch antenna

InactiveCN110277634AImproved circular polarization performancePhase center stableRadiating elements structural formsAntennas earthing switches associationPhysicsDielectric substrate
The invention relates to a square dual-frequency microstrip patch antenna. The square dual-frequency microstrip patch antenna comprises a conductive grounding plane, a cube-shaped dielectric substrate, a radiating sheet and a plurality of feed probes which are arranged in turn, wherein the radiating sheet includes a first radiating sheet and a second radiating sheet, the first radiating sheet is a gear-shaped sheet, and the bottom of each tooth slot of the gear-shaped first radiating sheet is processed with a groove at the center; the second radiating sheet is a circular sheet with the outer edge being serrated, the second radiating sheet is greater than the first radiating sheet, the middle part of the second radiating sheet is processed with an opening matched with the first radiating sheet in shape, and the first radiating sheet is arranged in the opening. The square dual-frequency microstrip patch antenna can be fixed extremely stably, adopts a single-layer antenna structure, has simple structure and higher reliability, and is more convenient to process, design and assemble. The processing is simple, the polarization performance of the antenna is improved, the phase center is stable, and the antenna is particularly suitable for precise measurement of the GNSS (Global Navigation Satellite System) and terminal equipment of the positioning system.
Owner:江苏三和欣创通信科技有限公司

Novel kettle type reboiler and manufacturing process thereof

The invention specifically relates to a novel kettle type reboiler and a manufacturing process thereof. The novel kettle type reboiler consists of a heating part, a kettle type reboiler, and a liquidstorage part, a horizontal type storage tank, which are assembled in an annular sleeve embedding manner and are structurally sheared and combined. The shell of the kettle type reboiler of the novel kettle type reboiler is embedded into a horizontal storage tank from the center of a seal at one end of the horizontal storage tank in an annular sleeve manner, the two parts are structurally sheared and combined to form a piece of overall equipment, the novel kettle type reboiler not only maintains all functions and advantages of a conventional kettle type reboiler, but also solves the critical defect that the conventional kettle reboiler is small in material storage capacity, and the equipment has multiple characteristics of being scientific in process, reasonable in structure, feasible to manufacture, low in project investment cost and the like and is applicable to projects that a thermal hydrocone type reboiler or a kettle type reboiler can be used in processes.
Owner:MAOMING R&P PETROCHEM ENG

Preparation with function of reducing blood sugar and preparation method thereof

The invention discloses a preparation with a function of reducing blood sugar, which is prepared from the aqueous extract of picris japonica. The preparation method of the preparation with the function of reducing blood sugar comprises the following steps: cleaning and airing the picris japonica, cutting the picris japonica into small pieces, adding distilled water for soaking, extracting for 2-3times (2-3 hours every time), filtering the extracting solutions, collecting the filtered solutions, merging the filtered solutions, centrifuging, taking the supernatant solution, and concentrating under the reduced pressure to obtain thick paste A; cleaning and airing the picris japonica, cutting the picris japonica into small pieces, crushing, and sieving with a 60-mesh sieve to obtain powder B; fully and evenly mixing the thick paste A of the aqueous extract of the picris japonica and a proper amount of the raw medicinal powder B of the picris japonica, wherein the quality mixing ratio of A to B is (8.5:1)-(13.5:1); drying at the temperature lower than 60 DEG C, and crushing to obtain mixed powder C of raw medicines and medicine extracts; and then, preparing the preparation. In the invention, the effective parts of the aqueous extract of the picris japonica are prepared into the pharmaceutical preparation with the function of reducing blood sugar, and the process is stable, simple and feasible.
Owner:SHANXI MEDICAL UNIV

Process for making tricyclodecenyl esters

A process for making tricyclodecenyl esters is disclosed. A C2-C4 carboxylic acid and a dicyclopentadiene react in the presence of triflic acid under conditions effective to produce the ester. The process gives tricyclodecenyl esters in good yield while avoiding the need to use a large excess of the carboxylic acid. The process efficiently provides fragrance-quality tricyclodecenyl esters from technical grade dicyclopentadienes and / or recycled carboxylic acids.
Owner:利安德巴塞尔调味香料和芳香有限责任公司

Polymerization reaction method for carbon fibers and equipment thereof

The invention provides a polymerization reaction method for carbon fibers and equipment thereof. The equipment is provided with a reaction kettle, wherein an upper seal head is arranged above the reaction kettle, a lower seal head is arranged below the reaction kettle, a guide cylinder is arranged in the reaction kettle, an inner coil pipe is arranged between the reaction kettle and the guide cylinder, the inner coil pipe is of a down-in and up-out structure, a propeller blade is arranged in the guide cylinder, a stirring shaft is arranged on the propeller blade, a driving device is arranged at the top of the stirring shaft, a sealing device is arranged between the stirring shaft and the upper seal head, a positioning sleeve is arranged between the stirring shaft and the lower seal head, a spraying device is arranged on the upper seal head, the upper seal head is provided with a feeding port, and the lower seal head is provided with a discharging port. The method and the equipment of the invention overcome the technical problems that gel is generally and easily generated, mass heat exchange is not timely, heat exchange capacity is insufficient, mixing is not uniform, and productivity is limited in an existing carbon fiber production polymerization technology. The method and the equipment can be widely applied to polymer liquid production.
Owner:KANGDE CARBON VALLEY TECH CO LTD

Method for manufacturing non-planar polymer lithium battery

The invention discloses a method for manufacturing a non-planar polymer lithium battery. The method comprises the following steps: (1) respectively coating the upper surfaces and the lower surfaces of positive pole pieces and negative pole pieces of a plane with a layer of organic adhesive, wherein the organic adhesive coating amount is 0.1-0.3mg / cm<2>; (2) respectively punching the positive pole pieces and the negative pole pieces to form non-planar pole pieces, wherein the punching temperature is 50-90 DEG C; (3) correspondingly stacking the positive pole pieces and the negative pole pieces, and welding positive pole lugs and the negative pole lugs to obtain a non-planar pole group; (4) coldly pressing the pole group to reduce gaps between the pole pieces and improve stability of the pole group; and (5) putting the pole group into a matched non-planar aluminum plastic packaging bag to hot press and pack to obtain a non-planar polymer lithium battery. Through the method for manufacturing the non-planar polymer lithium battery, the non-planar polymer lithium battery has manufacturability, meets basic electric property, also can ensure stability of the appearance and fills the blank of diverse manufacture of batteries in stereo spaces.
Owner:TIANJIN JUYUAN NEW ENERGY TECH CO LTD

Novel MEMS high-Q-value non-solenoid integrated inductor and preparation method thereof

The invention discloses a novel MEMS high-Q-value non-solenoid integrated inductor and a preparation method thereof. The integrated inductor comprises a silicon substrate; TSV micro-copper columns embedded in the silicon substrate, wherein the two ends of each TSV micro-copper column are exposed, and each TSV micro-copper column comprises a central port copper column, an inner side micro-copper column set, a first outer side micro-copper column set and a second outer side micro-copper column set; a first surface layer interconnection coil including a top surface layer interconnection coil anda bottom surface layer interconnection coil; an outer surface layer interconnection copper column; and a second surface layer interconnection coil including a top outer surface layer interconnection coil and a bottom outer surface layer interconnection coil. According to the invention, an improved embedded non-solenoid integration scheme is adopted, the inductor and the silicon substrate are isolated through the low-temperature oxide layer, the substrate loss is reduced, the non-solenoid structure surface layer interconnection coils are supported through the insulating material, and the multi-turn coil is embedded and integrated in a small area. Finally, the miniature integrated inductor which is low in loss, small in stray parasitic capacitance and high in Q value is formed, and meanwhilethe miniature integrated inductor is compatible with the packaging process and stable in machinery.
Owner:FUDAN UNIV

Vibration damper for motor vehicle

A vibration damper for a motor vehicle includes at least one cylinder tube with a longitudinal extension axis and a support spring, wherein the support spring has a first end portion and a second end portion, the support spring surrounds the cylinder tube in circumferential direction and is axially supported by the first end portion indirectly at a supporting device of the motor vehicle with respect to the longitudinal extension axis of the cylinder tube, and wherein the support spring is axially supported by its second end portion at the cylinder tube of the vibration damper. The cylinder tube has a spring disk which is formed integral with the cylinder tube, is formed out of the cylinder tube, and has a supporting surface for an end coil of the support spring.
Owner:ZF FRIEDRICHSHAFEN AG

Manufacturing method for multifunctional projection capacitor touch panel

The invention relates to a multifunctional projection capacitor touch panel and a manufacturing method thereof. The multifunctional projection capacitor touch panel comprises an outer cover touch substrate, a driving substrate and a sensing feedback substrate. The outer cover touch substrate on the uppermost layer is made of tempered glass, transparent materials are sprayed or etched on the upper surface of the outer cover touch substrate, roughness and touch are improved, and outdoor intense light is resistant. The driving substrate is a PET (polyethylene terephthalate) or PMMA (polymethyl methacrylate) flexible substrate or glass substrate. The sensing feedback substrate is a glass substrate. Both the driving substrate and the sensing feedback substrate are provided with transparent conductive circuits. After the transparent conductive circuits are led to the lateral side by a circuit made from conductive materials on lateral side of the integral transparent conductive circuits, the driving substrate and the controller are connected, and the circuits are protected by transparent insulation materials coated thereon. The three substrates are glued by optical adhesives. The touch panel and the manufacturing method thereof have the advantages of manufacturability, especially for products larger than 15 inches, yield rate is high, material waste is reduced, the sensing layer feels smoother when touched with fingers, and external force impact resistance of the three substrates is improved remarkably.
Owner:SHENZHEN ZHENGXING OPTOELECTRONICS TECH

Trapping composition for hoverflies and application of trapping composition

The invention discloses a trapping composition for hoverflies and an application of the trapping composition. The trapping composition comprises a solvent, an attractant, a humectant and a carrier. According to the trapping composition for hoverflies and the application of the trapping composition, an ammonia release substance is selected from ammonium acetate, ammonium bicarbonate, ammonium carbonate, ammonium citrate, ammonium sulfate, ammonium nitrate, ammonium hydroxide, ammonium carbamate and acetamide to play a role in trapping, the attractant preparation method is simple, conditions arefeasible, and the trapping composition has the characteristics of being trace, efficient, economical, non-toxic and the like. The trapping composition provided by the invention is simple to prepare,and raw materials are easy to obtain, and the trapping composition has the advantages of strong trapping capability, good stability and long lasting period.
Owner:韶关市华实现代农业创新研究院 +1

Electroplating pretreatment solution and electroplating pretreatment method

A plating-pretreatment solution comprising an organic sulfonic acid, thiourea, fluoroboric acid and hypophosphorous acid and a plating-pretreatment method comprising contacting a film carrier tape in which a wiring pattern is formed on a surface of an insulating film with a plating-pretreatment solution comprising an organic sulfonic acid, thiourea, fluoroboric acid and hypophosphorous acid to remove metals remaining on the insulating film. According to the plating-pretreatment solution and the plating-pretreatment method, metals remaining on the surface of the insulating film exposed by etching are removed, and the occurrence of migration is prevented.
Owner:MITSUI MINING & SMELTING CO LTD

A new mems high q value non-solenoid integrated inductor and its preparation method

The invention discloses a novel MEMS high-Q value non-solenoid integrated inductor and a preparation method thereof. The integrated inductor includes: a silicon substrate; a TSV micro-copper column embedded in the silicon substrate, and its two ends are respectively exposed. The TSV micro-copper column includes: a central port copper column, an inner micro-copper column group, a first outer micro-copper column group and a second outer micro-copper column group; a first surface layer interconnection coil, which includes a top surface layer interconnection coil, a bottom layer a skin interconnection coil; a skin interconnection copper pillar; and, a second skin interconnection coil comprising a top skin interconnection coil and a bottom skin interconnection coil. The invention adopts an improved embedded non-solenoid integration scheme, isolates the inductor and the silicon substrate through a low-temperature oxide layer, reduces the loss of the substrate, and supports the non-solenoid structure surface layer interconnection coil through an insulating material, in a small area Embedded with integrated multi-turn coils, it finally forms a micro-integrated inductor with low loss, small stray parasitic capacitance, and high Q value. It is also compatible with the packaging process and mechanically stable.
Owner:FUDAN UNIV

High-temperature superconductor high-voltage transformer for serving as low current high-voltage power and application thereof

The invention discloses a high-temperature superconductor high-voltage transformer and application thereof as low-current high-voltage supply. The high-temperature superconductor high-voltage transformer comprises an iron core, a primary coil and a secondary coil; the primary coil is connected with an external power supply through a current leading wire; the secondary coil outputs high-voltage electricity through high-voltage output port; the primary coil is wound by a composite high-temperature superconductor wire or a high-temperature superconductor initial band materials and is a big-current low-resistance-loss coil; the secondary coil is wound by traditional high-voltage coil technology; and the primary coil is located in a low-temperature container and cooled by refrigerating fluid or refrigeration apparatus. Compared with the prior art, the invention is characterized by big primary current capacity, low required working voltage, low energy consumption, low volume, low cost, available manufacturing, simple operation, easy maintaining, and good practicability, and can be used as a low-current high-voltage supply to be applied to any occasion needing high voltage and low current, with secondary coil capable of effectively outputting higher voltage in low current.
Owner:CHENGDU SHUANGXING TRANSFORMER

Preparation with function of reducing blood sugar and preparation method thereof

The invention discloses a preparation with a function of reducing blood sugar, which is prepared from the aqueous extract of picris japonica. The preparation method of the preparation with the function of reducing blood sugar comprises the following steps: cleaning and airing the picris japonica, cutting the picris japonica into small pieces, adding distilled water for soaking, extracting for 2-3times (2-3 hours every time), filtering the extracting solutions, collecting the filtered solutions, merging the filtered solutions, centrifuging, taking the supernatant solution, and concentrating under the reduced pressure to obtain thick paste A; cleaning and airing the picris japonica, cutting the picris japonica into small pieces, crushing, and sieving with a 60-mesh sieve to obtain powder B; fully and evenly mixing the thick paste A of the aqueous extract of the picris japonica and a proper amount of the raw medicinal powder B of the picris japonica, wherein the quality mixing ratio of A to B is (8.5:1)-(13.5:1); drying at the temperature lower than 60 DEG C, and crushing to obtain mixed powder C of raw medicines and medicine extracts; and then, preparing the preparation. In the invention, the effective parts of the aqueous extract of the picris japonica are prepared into the pharmaceutical preparation with the function of reducing blood sugar, and the process is stable, simple and feasible.
Owner:SHANXI MEDICAL UNIV

MEMS process-based high-Q value three-dimensional spiral structure inductor and fabrication method thereof

InactiveCN109599489ARealize multi-layer photolithography processLow costSolid-state devicesInductancesSilicon matrixInsulation layer
The invention belongs to the technical field of microelectronics, and particularly relates to an MEMS process-based high-Q value three-dimensional spiral structure inductor and a fabrication method thereof. The three-dimensional spiral structure integrated inductor comprises a silicon matrix, a substrate insulation layer, spiral coils and a spiral coil support object, wherein the substrate insulation layer is used for isolating inductance spiral coils from the silicon matrix, and the spiral coils form electrical connection by cylindrical metal in inter-coil insulation layers. A three-dimensional vertical integrated scheme is employed, the inductor and the silicon substrate are isolated by a basic insulation layer, and the substrate loss is reduced; a vertical spiral structure is supportedby an insulation material and is upwards and vertically integrated to form a multi-layer coil within relatively small area, and a miniature integrated inductor which is low in loss and small I stray parasitic capacitance, has high-Q value and mechanical stability and is simultaneously compatible with a package process is finally formed.
Owner:FUDAN UNIV

Heat exchanger structure optimization method based on hot melt type gas-liquid double-phase heat exchange structure

The invention relates to a heat exchanger structure optimization method based on a hot melt type gas-liquid double-phase heat exchange structure, which comprises the following steps: S1, constructinga hot melt type gas-liquid double-phase heat exchange function based on a sine and cosine function according to the hot melt type gas-liquid double-phase heat exchange structure; and S2, carrying outthree-dimensional modeling, and constructing a heat exchange unit body; S3, repeatedly executing the step S2, carrying out parameter adjustment, and obtaining an optimal unit body meeting the preset gas-liquid volume ratio condition; s4, obtaining a set unit composed of optimal unit bodies through a fast iterative array; s5, repeatedly executing the step S4 to obtain a preferred set with optimal surface area and quality; s6, carrying out stress optimization; s7, carrying out 3D printing optimization; and S8, integrating the optimal set to obtain a final heat exchanger structure. Compared withthe prior art, a hot melt type gas-liquid double-phase heat exchange structure is adopted, selection of a traditional design structure mode is broken through, and double breakthroughs in heat transferefficiency and weight are achieved.
Owner:TONGJI UNIV
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