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34results about How to "Reduce industrial manufacturing costs" patented technology
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Preparation method of hydrocracking catalyst
ActiveCN103100400AIncrease the apertureIncrease contentMolecular sieve catalystsHydrocarbon oil crackingMolecular sieveNaphtha
The invention discloses a preparation method of a hydrocracking catalyst. The method comprises: first selecting a solution containing a hydrogenation active metal and an organic reagent to dip mixed powder of a molecular sieve and alumina, conducting drying, then subjecting the obtained material and a peptizing agent or a binder together to rolling, molding, drying and roasting, thus obtaining the catalyst. Only through one time high temperature roasting can the catalyst product be obtained. The preparation method is simple, and the preparation cost is obviously reduced. In addition, the hydrogenation activity center and the cracking activity center of the catalyst coordinate, so that the catalyst has very high catalytic activity. Also with a large specific surface area and pore volume, the hydrocracking catalyst is more suitable for a catalytic process of treating high dry point inferior vacuum distillate oil by hydrocracking for high production of naphtha.
Owner:CHINA PETROLEUM & CHEM CORP +1
Amorphous zinc oxide-based thin film transistor and preparation method thereof
InactiveCN104681622AImprove migration propertiesImprove performanceTransistorSemiconductor/solid-state device manufacturingMaterials scienceSemiconductor thin films
The invention discloses an amorphous zinc oxide-based thin film transistor and a preparation method thereof. The amorphous zinc oxide-based thin film transistor comprises a substrate, a grid electrode, a grid medium layer, a channel layer, a source electrode and a drain electrode, wherein the channel layer is made of a zinc oxide semiconductor material doped with aluminum and tin, the content of aluminum oxide is 3-9% (in mass), and the content of tin oxide is 3-50% (in mass). The grain size of a prepared ATZO (ZnO+Al2O3+SnO2) semiconductor thin film is about 10nm, the distribution is uniform, and the prepared ATZO semiconductor thin film is a nanometer crystal oxide semiconductor. The preparation method has the advantages that the steps are simple, the manufacturing cost is low, the uniformity is good, the method is applied to low-temperature technology, the positive effect on improving the property of the thin film transistor device is improved, the properties, such as migration rate, switch ratio, threshold voltage and sub-threshold swinging rate, of the device, are improved, the method is suitable for transparent display and flexible display techniques, and the like.
Owner:PEKING UNIV
Vibration-isolating electric double-row roller skate
InactiveCN106039689AReasonable structure, small and lightReduce weightSkate-boardsRoller skatesCarrying capacityElectric machinery
The invention relates to the field of a travel tool, particularly to a vibration-isolating electric double-row roller skate. The roller skate is characterized by comprising components, such as a skate support, a structural support, roller supports, rollers, a shoe-buckle band, a hub motor, a battery and a controller. In such a manner that the structural support is installed below the skate support and the roller supports and rollers form a double-row double-column roller group, stability of the electric roller skate is effectively improved. The roller skate travels stably and is easy for a beginner to master. The driving resistance is reduced, so that the roller skate can easily pass through a coarse complex road surface and smoothly travels. The carrying capacity is improved. A movable shoe-buckle is designed to have a backward opening, so that the roller skate is convenient and fast to wear without a tedious process for skate changing. The roller skate is simple in structure, greatly saved in weight and size of a travel tool, and convenient to carry and use. The roller skate can electrically travel and can slide by human power, integrate transportation travel and fitness and entertainment into one body, and is suitable for wide popularization.
Owner:唐勇
Preparation method of p-nitrobenzaldehyde
InactiveCN105348107AEasy to cleanReduce pollutionOrganic chemistryOrganic compound preparationP-nitrotolueneSolvent
The invention discloses a preparation method of p-nitrobenzaldehyde. The preparation method comprises the following steps: p-nitrotoluene, which is used as a raw material, undergoes bromine bromination under the catalysis of azo-dialkyl nitrile, so as to generate 4-nitrobenzyl bromide and hydrogen bromide; hydrolysis of 4-nitrobenzyl bromide is catalyzed by an aqueous carbonate solution to obtain p-nitrobenzyl alcohol; and hydrogen peroxide oxidation of p-nitrobenzyl alcohol is catalyzed by sodium hydroxide so as to generate a target product, namely p-nitrobenzaldehyde. According to the invention, the azo-dialkyl nitrile solid catalyst replaces a peroxycarbonate liquid phase catalyst to catalyze the bromination reaction, so as to raise operational safety of the industrial preparation reaction; by using aryl halide as a solvent medium, use of a haloalkane solvent medium is avoided, and pollution of volatile organic solvents with low boiling point is avoided; and by the hydrogen peroxide oxidation method, cleanliness of the industrial preparation reaction is raised, and environmental pollution is reduced. According to the invention, product yield is increased; yield is raised by about 3% in comparison with yield of existing traditional industrial methods; overall yield reaches 76%; and product purity reaches 99% and above.
Owner:NANJING UNIV OF SCI & TECH
Method for preparing biphenyl triarylated amine compound by taking carboxyl as guide group, intermediate and preparation method thereof
ActiveCN108276300AHigh purityHigh yieldAmino preparation from aminesOrganic compound preparationArylHydrogen
The invention relates to a method for preparing a biphenyl triarylated amine compound by taking carboxyl as a guide group, an intermediate and a preparation method thereof. The intermediate has a structure as shown in the formula, (the formula is shown in the description), wherein R is selected from hydrogen, alkyl with a carbon atom number of 1-10, halogenated alkyl with a carbon atom number of 1-5, alkoxy with a carbon atom number of 1-5 and aryl. The intermediate is prepared from simple and easily available raw materials, and the biphenyl triarylated amine compound prepared by the intermediate is high in purity and yield, so that the production cost of the biphenyl triarylated amine compound can be remarkably reduced, and therefore, the method is very suitable for industrial productionof the biphenyl triarylated amine compound.
Owner:ZHENGZHOU SIGMA CHEM
Vortex electromagnetic wave converging device, wireless communication system
ActiveCN108987939AWide operating frequency rangeSimple designIndividually energised antenna arraysMicrowaveCommunications system
The invention belongs to the technical field of digital information transmission, and discloses a converging device of vortex electromagnetic wave and a wireless communication system. The microwave lens is laminated by a plurality of circular structures, and the circular structure is composed of a part of basic units located at the center and a plurality of circular arcs. The circular arc structure is composed of several basic units, the cylindrical radius of the basic unit in the same position in each layer decreases from top to bottom, the cylindrical radius of the basic unit in the same layer decreases from inside to outside, and the cylindrical radius of the basic unit in the same circular arc structure in the same layer is the same. The feed center is located at the central axis of the lens. Compared with the prior art, the invention effectively separates the generation and the convergence of the vortex electromagnetic wave, and can effectively act on the existing energy-divergingvortex electromagnetic wave. 3D printing technology is adopted in that microwave lens of the invention, the design is simple, the price is low, and compared with the prior art, the industrial manufacturing cost can be greatly reduced.
Owner:XIDIAN UNIV
Spilling water filtration device
ActiveCN104594001AStructural innovationSolve the problem of hanging clothesOther washing machinesTextiles and paperFiltrationWater flow
The invention provides a spilling water filtration device which comprises a spilling water portion and a filtration portion. A lint filter is arranged on the filtration portion, a filtration cavity is formed between the filtration portion and the lint filter, water inlets are formed in the two sides of the filtration cavity respectively, water deflection baffles which swing in the filtration cavity water inflow direction are arranged in the filtration cavity, and the water deflection baffles deflect water currents which enter the filtration cavity from the water inlets into the lint filter. By means of the spilling water filtration device, the lint collection rate can reach to about 90%. The spilling water filtration device has the advantages that the structure is simple, the production cost is low, the filtration effect is good, and the spilling water filtration device is worth popularizing and applying.
Owner:QINGDAO HAIER WASHING MASCH CO LTD
Circular waveguide antenna based on dielectric lens
ActiveCN108539404AFast convergenceIncrease radiant energyRadiating elements structural formsSpherical spaceRound table
The invention provides a circular waveguide antenna based on a dielectric lens, so as to solve the technical problem of insufficient collection of incident waves in the prior art. The circular waveguide antenna based on the dielectric lens comprises a circular waveguide and a dielectric lens fixed with the receiving end, wherein the upper bottom surface of the dielectric lens is located at one side of the receiving end of the circular waveguide; the dielectric lens comprises a cylindrical medium and multiple circular cylindrical medium layers which are nested sequentially from inside to outside with the cylindrical medium as a center, the lower bottom surface is thus a spherical surface, the upper bottom surface is a planer surface, the side surface has a round table body structure with aninward concave arc surface, the cylindrical medium and the circular cylindrical mediums comprise multiple first cylindrical mediums and first circular cylindrical mediums laminated vertically respectively, and the first cylindrical medium and the first circular cylindrical medium are formed by multiple first basic units and second basic units in a joint mode. Material parameters at different positions can be realized through changing the size of spherical space inside the first basic unit and the second basic unit, electromagnetic waves can be effectively converged, and the manufacturing costis low.
Owner:XIDIAN UNIV
Axial-flow compressor rotor with flow-guiding small blades
InactiveCN105927584AImprove stable working rangeImprove flow marginPump componentsPumpsExternal energyEngineering
The invention provides an axial-flow compressor rotor with flow-guiding small blades. The axial-flow compressor rotor comprises rotor blades, a casing and a hub, wherein the flow-guiding small blades, bi-arc straight blades, are further mounted on the casing, and the blade roots of the flow-guiding small blades are connected with the upstream part of the casing and circumferentially and uniformly distributed on the casing; and the axial positions of the flow-guiding small blades are located at the blade tip chord length, 10-30% of the upstream parts, of the blade tips of the rotor blades, and the bending directions of the flow-guiding small blades are in the rotational directions of the rotor blades (1). According to the axial-flow compressor rotor, the attack angles and the diffusion factors of channel air flow in the blade tip areas are reduced, the load of the blade tip areas is reduced, and flow channels are prevented from being blocked by leakage flow at the blade tips of the rotor blades. The stable working scope of the compressor rotor is expanded, and the flow allowance of a compressor is improved. Compared with the blade tip jet technology, the technology adopted by the invention has the advantages that the guide blade processing casing is convenient to mount and simple in structure, external energy supply is not needed, and the industrial manufacturing cost is lowered.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Pop-top can with drinking mouthpiece
InactiveCN1970398ADrinking safety and hygieneSimple designDischarging meansRigid containersMechanical engineeringHygiene
The beverage container, especially a tin composed of the can, top cover, pull ring and the seal plate connected with the pull ring a plate like drinking section under the seal plate composed of a convertible guide low end and a fixed root for the inner side of the top cover, with the guide flow end connected with the root position through a folded thread. When it opens, the sanitary drinking section springs out from the tin, avoids the direct contact of the consumer with the contaminated can, with reasonable structure, convenient use and safe hygiene.
Owner:金炫
All-aluminum slab-wall structure
The invention discloses an all-aluminum slab-wall structure. The all-aluminum slab-wall structure comprises a chair rail, a skirt waist installation part, a ground shell nosing part and a seamless installation part; the chair rail comprises an aluminum panel layer and a corrugated plate layer fixed to the aluminum panel layer; the skirt waist installation part comprises a steel keel fixed on a wall and a string course installation part fixed on the upper portion of the chair rail, the steel keel is located at the edge of the chair rail, and the steel keel and the chair rail are fixed; the ground shell nosing part comprises the steel keel, the off-ground chair rail, a hanging element used for fixing the upper end of the chair rail, and a towing element used for supporting the lower portionof the chair rail which are arranged from top to bottom in sequence, and the hanging element and the towing element are both fixed on the steel keel; and the chair rail comprises the aluminum panel layer and the corrugated plate layer fixed to the aluminum panel layer by bonding, and the steel keel is fixed on the wall. The invention provides an environment-friendly all-aluminum wallboard intentionally.
Owner:重庆玛谛家居有限公司
Three-dimensional network aluminum porous body, current collector and electrode each using the aluminum porous body, and nonaqueous electrolyte battery, capacitor and lithium-ion capacitor with nonaqueous electrolytic solution, each using the electrode
ActiveCN103477479ALower resistanceReduce industrial manufacturing costsElectrolytic capacitorsElectrode carriers/collectorsElectrical resistance and conductanceLithium-ion capacitor
Owner:SUMITOMO ELECTRIC IND LTD +1
Preparation method and application of positive electrode material lithium iron phosphate
InactiveCN112864384AImprove electrochemical performanceHigh capacity densitySecondary cellsPositive electrodesElectrolytic agentO-Phosphoric Acid
The invention provides a preparation method of a positive electrode material lithium iron phosphate. The preparation method comprises the following steps of: (1) mixing a lithium source, an iron source and a phosphoric acid aqueous solution to form a mixed solution, and stirring the mixed solution to prepare sol; (2) under heating and stirring, completely volatilizing the solvent from the sol to obtain wet gel, and carrying out vacuum drying on the wet gel to obtain dry gel; and (3) grinding the dry gel to obtain a powdery precursor, and carrying out heat treatment on the powdery precursor in a reducing atmosphere to obtain the lithium iron phosphate. The invention also provides a lithium ion battery. The lithium ion battery comprises a positive electrode plate, a negative electrode plate, electrolyte and a diaphragm; and the positive electrode plate comprises the positive electrode material lithium iron phosphate prepared by the preparation method. According to the method disclosed by the invention, the industrial preparation cost of the lithium iron phosphate is reduced, and the prepared lithium iron phosphate has good electrochemical performance.
Owner:SHENHUA ZHUNNENG RESOURCE COMPREHENSIVE DEV COMPANY
Transfer method of semiconductor film layer and preparation method of composite wafer
ActiveCN110491827AReduce manufacturing costEase of industrial applicationSemiconductor/solid-state device manufacturingWaferThin membrane
The invention discloses a transfer method of a semiconductor film layer and a preparation method of a composite wafer. The method comprises the following steps: preparing a first dielectric layer on the upper surface of a semiconductor substrate, and preparing a metal film layer on the lower surface of the semiconductor substrate; preparing a second dielectric layer on the second semiconductor substrate; bonding the first dielectric layer and the second dielectric layer to enable the first semiconductor substrate and the second semiconductor substrate to be combined; etching a groove in the side surface of the first semiconductor substrate; applying external force to the metal film layer on the lower surface of the first semiconductor substrate, so that the first semiconductor substrate issubjected to transverse crystal cracking at the groove, and the semiconductor film layer subjected to crystal cracking is transferred to the second semiconductor substrate. According to the invention, the preparation of the high-quality, large-area and low-cost semiconductor single crystal thin film layer on the XOI substrate can be realized; meanwhile, the method can repeatedly utilize the remaining first semiconductor substrate and separate multiple semiconductor film layers from the first semiconductor substrate for preparing multiple XOIs, so that the industrial manufacturing cost is greatly saved.
Owner:BEIJING UNIV OF TECH
Vertical axis wind turbine rotor
InactiveCN105745438AHigh elongationFacilitates hydrodynamic effectsWind motor supports/mountsMachines/enginesClassical mechanicsEngineering
Owner:奥兰多·罗琦
A vortex electromagnetic wave convergence device and wireless communication system
ActiveCN108987939BWide operating frequency rangeSimple designIndividually energised antenna arraysCommunications systemInformation transmission
Owner:XIDIAN UNIV
Mounting structure for all-aluminum wallboard
The invention discloses a mounting structure for an all-aluminum wallboard. The mounting structure comprises a waistband mounting part, a ground close-up part and a seamless mounting part. The waistband mounting part comprises a reinforcement keel fixed to a wall body, and a string course mounting part fixed to the upper portion of a clapboard, and the reinforcement keel is located at the edge ofthe clapboard and fixed to the clapboard. The ground close-up part comprises a reinforcement keel, the liftoff clapboard, a hanging piece for fixing the upper end of the clapboard and a dragging piecefor supporting the lower end of the clapboard, wherein the reinforcement keel, the liftoff clapboard, the hanging piece and the dragging piece are sequentially arranged from top to bottom; and the hanging piece and the dragging piece are both fixed to the reinforcement keel, the clapboard comprises an aluminum board layer and a corrugated board layer fixed to the aluminum board layer in a bondingmode, and the reinforcement keel is fixed to the wall body. The mounting structure for the all-aluminum wallboard is environmentally friendly.
Owner:重庆玛谛家居有限公司
Synthetic process of Lasmiditan
ActiveCN111943930AHigh yieldQuality improvementOrganic chemistryOrganic-compounds/hydrides/coordination-complexes catalystsCuprous saltMethyl palmoxirate
A synthetic process of Lasmiditan includes: 2,4,6-trifluorobenzamide and (6-bromopyridine-2-yl)(1-methylpiperidine-4-yl) methyl ketone are subjected to a catalytic reaction with cuprous salt (CuX, X =I, Br, Cl) and ligand N,N'-dimethyl-1,2-ethylenediamine or N,N'-di(arylmethyl)-1,2-ethylenediamine (RCH2NHCH2CH2CH2NHCH2R, R = H or Ar) in an organic solvent at 0-60 DEG C; then the materials are separated to obtain the Lasmiditan, and the yield and the quality are excellent. The method has the advantages of mild reaction conditions, few byproducts, simple process operation, no need of noble metals, and great reduction of the industrial cost.
Owner:NANJING SUNPOLE PHARMATECH CO LTD
A method for transferring a semiconductor thin film layer and a method for preparing a composite wafer
ActiveCN110491827BReduce manufacturing costEase of industrial applicationSemiconductor/solid-state device manufacturingWaferThin membrane
The invention discloses a method for transferring a semiconductor thin film layer and a method for preparing a composite wafer, comprising: preparing a first dielectric layer on the upper surface of a semiconductor substrate, and preparing a metal film layer on the lower surface; Prepare the second dielectric layer on the first dielectric layer; bond the first dielectric layer and the second dielectric layer to combine the first semiconductor substrate and the second semiconductor substrate; etch grooves on the side of the first semiconductor substrate; An external force is applied to the metal film layer on the lower surface of the semiconductor substrate, causing the first semiconductor substrate to be crystallized laterally at the groove, and the semiconductor thin film layer after the crystallization is transferred to the second semiconductor substrate. The present invention can realize the preparation of high-quality, large-area, and low-cost semiconductor single crystal thin film layer on the XOI substrate; at the same time, this method can reuse the remaining first semiconductor substrate and separate it from the first semiconductor substrate. The multi-layer semiconductor thin film layer is used to prepare multiple XOIs, which greatly saves the industrial manufacturing cost.
Owner:BEIJING UNIV OF TECH
Needle improvements for drug delivery using tattoo machines
InactiveUS20210236335A1Increase and decrease in strengthGood curative effectMedical devicesEye treatmentSurgical operationPharmaceutical drug
This invention belongs to the field of medicine and surgical instruments, and is intended to provide a new route of drug administration through needles plated with specific metals, aiming at better drug distribution and absorption upon administration, more precisely in the eyeball and / or on the patient's skin in order to increase its efficacy in relation to other means of drug delivery known in the medical field, especially in skin, mucous and ocular diseases. The invention allows drug delivery to the skin and / or subcutaneous tissue, by means of a duly modified tattoo machine, which instead of ink, uses drugs, as a product to be inserted in the skin. In addition, the invention can be used to administer drugs directly to a person's eyeball, offering great practicality and agility to surgical procedures.
Owner:TRIGO ARBACHE SAMIA +1
Design Method of Orbital Angular Momentum Vortex Electromagnetic Wave Generator
ActiveCN108539425BClosely connectedEasy to fixGeometric CADSpecial data processing applicationsMicrowaveDivergence angle
Owner:XIDIAN UNIV
Magnetic field sensor based on organic field effect transistor and preparation method thereof
InactiveCN111175675ARealize high sensitivity and high response detectionUniform and controllable sizeSolid-state devicesSemiconductor/solid-state device manufacturingOrganic field-effect transistorMiniaturization
The invention provides a magnetic field sensor based on an organic field effect transistor and a preparation method thereof, and belongs to the technical field of sensors and preparation thereof. Themagnetic field sensor sequentially comprises a substrate, a gate electrode, a dielectric layer, an organic semiconductor layer, a source electrode, a drain electrode and a packaging layer from bottomto top. The organic semiconductor layer comprises a mixed material of a magnetic nano material and an organic semiconductor material, and the content of the magnetic nano material is 0.1-1wt%. The magnetic field sensor has high sensitivity to magnetic field signals, the manufacturing cost is low, the service life of the magnetic field sensor is prolonged; the preparation of a high-stability deviceis realized, magnetic field transistors with different magnetic field intensities and sensitive response can be manufactured according to requirements, detection of magnetic fields with various intensities can be realized, the application range is broadened, and the magnetic field sensor has huge potential in flexible, miniature, bionic and disposable human body electronic devices, and finally, the prepared magnetic field sensor structure based on the organic field effect transistor has the characteristics of simple structure, miniaturization and portability.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
A device for generating vortex electromagnetic waves
Owner:XIDIAN UNIV
Soybean milk making machine
The invention relates to a kitchen appliance, and in particular to a soybean milk making machine. The soybean milk making machine comprises a a headpiece and a cup body, wherein a crushing cover is arranged at the front end of the headpiece, and an electric motor is arranged in the headpiece; a crushing blade is arranged at the tail end of a rotating shaft driven by the electric motor; the crushing blade is located within the crushing cover; the bottom of the crushing cover is provided with an opening, and a plurality of spoilers, which extend towards the bottom of the cup body, are arranged on the peripheral wall of the crushing cover, and discharge holes are defined between the adjacent spoilers; the soybean milk making machine is characterized in that in the crushing cover, each spoileris provided with a first rib, a second rib and a spoiler plane for connecting the first rib and the second rib; on a same horizontal section, the first rib and the second rib are not located on a same circle that the center of the rotating shaft is taken as the center of the circle; and a distance R1 from the first rib to the center of the circle is greater than a distance R2 from the second ribto the center of the circle. In comparison with kitchen appliances of the prior art, the soybean milk making machine, which is provided with various crushing modes, can be used for making various drinks, and real dregs avoiding without filtering can be achieved, so that soybean milk, when drunk by consumers, is smooth and delicate in taste.
Owner:JOYOUNG CO LTD
Pop-top can with drinking mouthpiece
InactiveCN1970398BDrinking safety and hygieneSimple designDischarging meansRigid containersEngineeringMechanical engineering
Owner:金炫
Insulated shell of vehicle steering control unit
InactiveCN105764313AReduce weightOptimized structural spaceScreening rigid plastic containersEngineeringSteering control
The invention relates to an insulated shell of a vehicle steering control unit, the insulated shell comprises a rear end wall and an annular side wall protruding forward, an accommodation space is formed between the rear end wall and the side wall, a metallic nickel coating is sprayed on the inner surface of the rear end wall and the side wall, and the complexity of the structure and process is simplified.
Owner:LUXSHARE PRECISION INDKUNSHAN
A kind of overflow filter device
ActiveCN104594001BStructural innovationSolve the problem of hanging clothesOther washing machinesTextiles and paperFiltrationWater flow
The invention provides a spilling water filtration device which comprises a spilling water portion and a filtration portion. A lint filter is arranged on the filtration portion, a filtration cavity is formed between the filtration portion and the lint filter, water inlets are formed in the two sides of the filtration cavity respectively, water deflection baffles which swing in the filtration cavity water inflow direction are arranged in the filtration cavity, and the water deflection baffles deflect water currents which enter the filtration cavity from the water inlets into the lint filter. By means of the spilling water filtration device, the lint collection rate can reach to about 90%. The spilling water filtration device has the advantages that the structure is simple, the production cost is low, the filtration effect is good, and the spilling water filtration device is worth popularizing and applying.
Owner:QINGDAO HAIER WASHING MASCH CO LTD
Zinc complex based on phenanthroimidazole as well as preparation method and application of zinc complex
InactiveCN112979683AEasy to synthesizeEasy to purifySolid-state devicesSemiconductor/solid-state device manufacturingQuantum efficiencyPhysical chemistry
The invention discloses a zinc complex based on phenanthroimidazole and a preparation method and application thereof, and belongs to the technical field of organic electroluminescent materials, and the molecular formula of the zinc complex is Zn (TPPI) 2. The delta EST of the zinc-matched fluorescent material is 0.31 eV, the turn-on voltage of an electroluminescent device taking the zinc-matched fluorescent material as a subject and Ir (bt) 2 (acac) as an object is 2.6 V, the maximum brightness can reach 12526 cd / m < 2 >, and the maximum current efficiency, the maximum power efficiency and the maximum external quantum efficiency are 58.35 cd / A, 70.52 lm / W and 20.82% respectively.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Circular waveguide antenna based on dielectric lens
ActiveCN108539404BFast convergenceIncrease radiant energyRadiating elements structural formsSpherical spaceRound table
The invention provides a circular waveguide antenna based on a dielectric lens, so as to solve the technical problem of insufficient collection of incident waves in the prior art. The circular waveguide antenna based on the dielectric lens comprises a circular waveguide and a dielectric lens fixed with the receiving end, wherein the upper bottom surface of the dielectric lens is located at one side of the receiving end of the circular waveguide; the dielectric lens comprises a cylindrical medium and multiple circular cylindrical medium layers which are nested sequentially from inside to outside with the cylindrical medium as a center, the lower bottom surface is thus a spherical surface, the upper bottom surface is a planer surface, the side surface has a round table body structure with aninward concave arc surface, the cylindrical medium and the circular cylindrical mediums comprise multiple first cylindrical mediums and first circular cylindrical mediums laminated vertically respectively, and the first cylindrical medium and the first circular cylindrical medium are formed by multiple first basic units and second basic units in a joint mode. Material parameters at different positions can be realized through changing the size of spherical space inside the first basic unit and the second basic unit, electromagnetic waves can be effectively converged, and the manufacturing costis low.
Owner:XIDIAN UNIV
Preparing method of acridine
ActiveCN110003106AReduce industrial manufacturing costsThe reaction process is smooth and easy to controlOrganic chemistryTetramethylethylenediamineAcridine
The invention relates to a preparing method of acridine. The method includes the following step of evenly mixing 9-carboxyl acridine, a catalyst and ligand in an organic solvent for the reaction for 1-8 hours at 140-200 DEG C to obtain the acridine, wherein the ligand is at least one of N,N'-dimethylpiperazine, triethylamine, phenanthroline, substituted phenanthroline, N,N,N',N'-tetramethylethylenediamine, N,N'-dimethylaniline and N,N-diisopropylethylamine. According to the preparing method of the acridine, the acridine is synthesized through one step with 9-carboxyl acridine as the raw material, the reaction is carried out with the presence of the catalyst and the ligand, the reaction process is mild and easy to control, the product is high in purity and yield, the industrial manufacturing cost of the acridine is remarkably reduced, and the good industrial application value is realized.
Owner:ZHENGZHOU SIGMA CHEM
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