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43results about How to "Adjust load" patented technology
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Monolayer, b-axis oriented zsm-5 zeolite coating material on porous silicon carbide surface and its preparation
ActiveCN102274744AHigh selectivityExtend your lifePolycrystalline material growthFrom normal temperature solutionsHoneycomb structureNutrients substances
The invention belongs to the technical field of a structured catalyst and an application thereof, in particular to a porous carborundum surface single-layered and b-axis oriented ZSM-5 zeolite coating material and a preparation method thereof. Foamy carborundum or honeycomb structured carborundum is taken as a carrier, wherein a porous layer which is composed of overlapped carborundum grains is formed on the outer surface of the carrier; a zeolite coating layer is uniformly formed in the zeolite coating; the zeolite coating layer has a single-layer structure; and a b axis of a zeolite crystalis vertical to the surface of the carborundum carrier. The preparation method comprises the following steps: growing a layer of seed crystal colloid in situ on a carborundum ceramic surface in advance; controlling the basicity of a secondary growing solution, the concentration of nutrient substances and an added quantity of alkali metallic ions; and realizing the controllable growth of zeolite crystal on the surface of the carborundum carrier. The channel of the structured catalyst is opened; the molecular diffusion property is excellent; a specific surface area and a load are bigger; a contact area between the zeolite crystal and the carborundum carrier is big; the strengthened mass transfer and heat transfer are boosted; and the contact time among the reactant, the reaction product and the catalyst is shortened.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Preparation method of vanadium compound electrode material and application of vanadium compound electrode material in aqueous zinc ion battery
InactiveCN111640921AImprove conductivityEasy transferElectrode carriers/collectorsSecondary cellsVanadium CompoundsElectrolytic agent
The invention discloses a preparation method of a vanadium compound electrode material and application of the vanadium compound electrode material in an aqueous zinc ion battery. The method comprisesthe following steps: dispersing a vanadium compound into a water solvent; performing maintaining for 2 to 120 hours at a temperature of 100 to 200 DEG C; performing cooling to room temperature, performing washing and drying to obtain a vanadium compound active material; mixing the obtained vanadium compound active material with a conductive adhesive according to a mass ratio of (6-9): (4-1) to prepare a slurry, immersing a current collector into the slurry, taking out the current collector, performing drying, and repeating the immersing and drying processes for 10-30 times to obtain a vanadiumcompound electrode material; and taking the obtained vanadium compound electrode material as a positive electrode material, taking a Zn foil as a negative electrode, and preparing the aqueous zinc ion battery from the vanadium compound electrode material and a battery electrolyte. By utilizing the conductive adhesive and the three-dimensional current collector, the conductivity of the electrode is improved, the unit area loading capacity of an active material on the electrode is improved, and the electrochemical performance of the aqueous zinc ion battery is improved.
Owner:DALIAN MARITIME UNIVERSITY
Method for preparing iron phthalocyanine-graphene porous composite material
InactiveCN105742659AGood porous structureIncrease surface areaCell electrodesFuel cellsIron phthalocyanineCvd graphene
The invention discloses a method for preparing an iron phthalocyanine-graphene porous composite material. The iron phthalocyanine is dissolved into absolute ethyl alcohol, and fully dissolved by ultrasonic, wherein the concentration range of the iron phthalocyanine is 0.1-0.4mg mL<-1>; the graphene porous composite material is ultrasonically soaked in the prepared solution for 0.5-1.5h; and the soaked graphene porous composite material is taken out and dried to obtain the iron phthalocyanine-graphene porous composite material. According to the method, the graphene porous composite material has a good porous structure and a large surface area, so that iron phthalocyanine can be better contacted with graphene; the iron phthalocyanine is loaded to the surface and the hole wall surface of the graphene porous composite material through a simple impregnating method, so that the experimental procedures are greatly simplified; a more convenient and faster operation, and a stable process are realized; and the preparation complexity and preparation cost of the material are effectively lowered.
Owner:SHANDONG UNIV
Method for constructing terpyridyl ruthenium electrochemiluminescence sensor from graphene porous material
InactiveCN105181772AIncreased porous structureIncrease surface areaMaterial electrochemical variablesPorous grapheneFreeze-drying
The present invention discloses a method for constructing a terpyridyl ruthenium electrochemiluminescence sensor from a graphene porous material. The method is as below: first, reducing graphene oxide composite material freeze-dried graphene three-dimensional porous material (porous graphene, PGR) by high-temperature; fixing terpyridyl ruthenium (Ru(bpy)3<2+>) to a PGR modified glassy carbon electrode by using Nafion ion exchange effect; and successfully applying the sensor to detection of tripropylamine. The linear range is 1*10<-6> to 1*10<-4>M, and the test line is 1*10<-9>M. The sensor has excellent stability and repeatability.
Owner:SHANDONG UNIV
Preparing method and catalytic application of ruthenium nanocomposite
ActiveCN105772082AAdjust loadSmall particlesOrganic-compounds/hydrides/coordination-complexes catalystsSulfonic acid amide preparationChemical compositionNanoparticle
The invention provides a method of preparing a ruthenium nano-particle catalyst with cucurbit urils and reduction-oxidation graphene serving as common carriers in a synthesis mode, and the catalyst is used for catalytic synthesis of an aromatic sulfamide compound. The chemical component of the nano-particle catalyst is ruthenium, cucurbit urils and reduction-oxidation graphene, cucurbit urils and reduction-oxidation graphene serve as the common carriers, reduction-oxidation graphene is effectively prevented from agglomerating by means of the electrostatic interaction and volume effect of cucurbit urils, and the prepared ultra-small Ru nano-particles are uniform in particle size and are dispersed evenly. The prepared nano-particle catalyst is high in catalytic activity and stability and capable of efficiently catalyzing a sulfamide and aromatic alcohol reaction to prepare the aromatic sulfamide compound. The catalyst can be repeatedly used while activity is not reduced obviously. The method has the advantages of being simple in synthesis, convenient to operate, wide in application range, mild in preparation condition, simple and low in cost, and special equipment is not needed.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
Electrostatic discharge protection circuit
ActiveCN102957138AReduce voltageAdjust trigger voltageSolid-state devicesEmergency protective arrangements for limiting excess voltage/currentNODALEngineering
The invention discloses an electrostatic discharge protection circuit which is provided with a resistor and at least one protective transistor. The resistor is coupled between an output / input signal node and an internal node of an internal circuit, the protective transistors are connected between a voltage node and the internal node in serial, and grid electrodes of the protective transistors are coupled with drain electrodes thereof. Voltage of the electrostatic discharge protection circuit when triggered and conducted can be reduced effectively, capacitive load on signal windings can be decreased, and application efficiency of arrangement area can be increased.
Owner:FARADAY TECH CORP
Rapid access emergency distribution system
InactiveCN106992593AReliable contactImprove overload capacityEmergency power supply arrangementsLow voltageNose
The present invention relates to a rapid access emergency distribution system. The system comprises a low-voltage switchgear (1), an emergency distribution box (2) and a mobile emergency generator car (3). The low-voltage switchgear (1) and the emergency distribution box (2) are arranged in a distribution room and are mutually connected, the compartment of the mobile emergency generator car (3) is internally provided with an emergency power supply rapid access box (31), and the emergency power supply rapid access box (31) and the emergency distribution box (2) are connected through a connection cable (4) with a rapid connection function. Compared to the prior art, special tools are not needed, the rapid access emergency distribution system can be operated by hands, the connection cable has formed the standardization, a standard industrial connector does not need any tool, any adult can operate by hands, and the contact is more reliable and the overload capacity is high compared to a traditional 'copper nose' connection mode.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO
Mobile agent based stream media multicast network implementation method and system
ActiveCN101212329AAdjust loadSpecial service provision for substationStore-and-forward switching systemsMulticast networkStructure of Management Information
The invention relates to a method for realizing streaming media multicast network based on a mobile Agent, which comprises the following steps: (1) a multicast function collection D and the mobile Agent group containing the function collection are collected; (2) information of the function collection D is released by a multicast server to all rediffusion nodes in the multicast network; (3) functions which are not contained by the rediffusion node are added; (4) the mobile Agent of the rediffusion node is customized; (5) all rediffusion nodes in the multicast network are searched by the multicast server to add the rediffusion node, to delete the rediffusion node, to recombine the rediffusion structure and to check whether the nodes are all updated. The invention has the advantages that: the mobile Agent theory is introduced into realization of the multicast network of the streaming media application layer, which allows the topology of the multicast network to automatically reconstruct according to the network change; the multicast network is automatically reconstructed according to the network change; content and form of the multicast service are dynamically added and subtracted; load of the rediffusion service is adjusted by comprehensively considering situations of a plurality of users in the region.
Owner:ZHEJIANG UNIV OF TECH
Biodegradable vehicles and delivery systems of biologically active substances
InactiveCN1438858AEasy to control the degradation rate in vivoAdjust loadOrganic active ingredientsPeptide/protein ingredientsControlled releaseSolvent evaporation
Biodegradable vehicle and delivery systems of physiologically, pharmacologically and biologically active substance(s) (BAS) are provided. The biodegradable vehicles may be prepared by blending biodegradable polymers and plasticizers using a novel solvent evaporation method. This method involves dissolving the biodegradable polymer or copolymer and a plasticizer or mixtures of plasticizers into a volatile solvent or mixtures of volatile solvents. The volatile solvent is then removed using vacuum or at an elevated temperature or using a combination of both vacuum and elevated temperature. The biodegradable vehicle can be used as filler or spacer in the body. Biologically active substances (BAS) can be added to the biodegradable vehicle at any step during or after preparing the biodegradable vehicle, or just prior to using the biodegradable delivery system. This biodegradable delivery system provides controlled release of the BAS over the desired period of time. The biodegradable vehicle or BAS-loaded biodegradable delivery system can be injected, implanted, smeared or applied in vivo in an animal, bird or human.
Owner:A・J・舒克拉
Compressor
InactiveCN101600885AEnsure discharge flowIncrease the opening areaRotary/oscillating piston combinations for elastic fluidsRotary piston pumpsRotational axisEngineering
The present invention relates to compressors including a compression mechanism whose volume can be changed by partially ejecting, through a bypass passage, refrigerant in a compression chamber. The area of an opening of the bypass passage formed in a compression chamber is sufficiently ensured. A compressor (20) includes a low-stage side compression mechanism (40a) having a low-stage side cylinder (41a) and a low-stage side piston (47a) and configured to compress refrigerant in the low-stage side cylinder (42a). The low-stage side compression mechanism (40a) is provided with a bypass passage (66) whose upstream end is opened to a low-stage side cylinder chamber (42a) and through which refrigerant is partially ejected from the low-stage side cylinder chamber (42a) so as to be returned to a suction side of the low-stage side compression mechanism (40a). The cross section of the upstream end of the bypass passage (66) is elongated circumferentially about a rotational axis (X).
Owner:DAIKIN IND LTD
Application of unary linear regression frequency measurement algorithm in direct-current charging machine
InactiveCN107834678AImprove frequency calculation accuracyAccuracy insensitiveBatteries circuit arrangementsElectric powerSignal onPower grid
The invention relates to application of a unary linear regression frequency measurement algorithm in a direct-current charging machine. The application comprises the steps of detecting a signal zero crossing point position and carrying out unary linear regression analysis on a signal value near the zero passing point so as to obtain an intercept of the signal on a time axis coordinate to serve asa signal zero passing point time value. By applying the method, the phenomena of quite long filtering time and unstable measurement results caused by harmonic waves, noise and interference of an electric power system in the traditional zero passing point detection method are avoided; frequency calculation precision is improved; the method is not sensitive to accuracy of the zero passing point positions of the actual signal, and the algorithm detection processes are simplified; through the designed integrated direct-current charging machine, output power can be adjusted in real time according to frequency fluctuations of a power grid input source, so an effect of adjusting load of the power grid is achieved; and the application of the algorithm is very important in stabilization and balancing of power generation and the load.
Owner:山东电工豪迈节能科技有限公司
Wind turbine
InactiveCN108119298ASimple designOptimize allocationWind motor controlEngine fuctionsEngineeringWind force
The invention relates to a wind turbine comprising a rotor with a hub and several rotor blades arranged at the hub with the rotor blades being rotatable around an axis relative to the hub by means ofa pitch bearing arrangement, whereby each rotor blade (3) extends into the hub (2) with a blade section (4), with the pitch bearing arrangement (6) comprising a first and a second rolling bearing (7,8) being spaced apart from each other in the direction of the axis (5) and arranged between the blade sections (4) and the hub (2).
Owner:SIEMENS GAMESA RENEWABLE ENERGY AS
Solid particle heat exchange system for fluidized bed
InactiveCN111457765AAffect the service lifeEffective preheatingSolar heating energySolar heat storageFluidized bedFresh air
The invention provides a solid particle heat exchange system for a fluidized bed, and belongs to the field of heat exchangers. The solid particle heat exchange system for the fluidized bed comprises afluidized bed heat exchanger, an air supply part and a reflux part; the air supply part comprises an air supply pipeline which is provided with a heat; the air supply pipeline is provided with a first air inlet end, a first air outlet end and an air mixing section positioned between the first air inlet end and the first air outlet; the reflux part comprises a reflux pipeline; the reflux pipelineis provided with a second air inlet end and a second air outlet end; the first air inlet end is connected with a fresh air inlet; the first air outlet end communicates with a fluidizing air inlet of the fluidized bed heat exchanger; a fluidizing air outlet of the fluidized bed heat exchanger communicates with the second air inlet end; the second air outlet end is connected with the air mixing section; and the air mixing section is used for mixing the gas introduced from the first air inlet end and the gas flowing out from the second air outlet end. Preheating and temperature rising of the fluidized bed heat exchanger and prepacking can be completed effectively, so that high-temperature particles are prevented from entering the fluidized bed heat exchanger to affect the service life of theheat exchanger because of rising temperature too fast.
Owner:DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
Old community orderly charging method and device based on intelligent electric meter
PendingCN112865260AReduce network costsAdjust grid loadCircuit monitoring/indicationCharging stationsEmbedded systemElectrical battery
The invention relates to an old community orderly charging method and device based on an intelligent electric meter. The device comprises charging equipment, wherein the charging equipment comprises a power supply control module, a leakage current protector and a Bluetooth module, the power supply control module is connected with the Bluetooth module, and the power supply control module communicates with the intelligent electric meter through the Bluetooth module. According to the invention, the charging state of the automobile battery is adjusted according to the charging characteristics of the battery, the access quantity of ordered charging is improved by adopting a first-coming first-service multi-limit and less-supplement mode, meanwhile, the problem of residential electricity consumption is fully considered in ordered charging in the community, ordered charging is carried out on time according to needs under the condition that the residential electricity consumption is not affected, and the user experience of residents and automobile charging is ensured.
Owner:CHINA SOUTHERN POWER GRID DIGITAL GRID RES INST CO LTD +1
Millimeter wave filtering frequency-selecting assembly and integrated circuit
InactiveCN112511132AImprove isolationAdjust loadMultiple-port active networksHemt circuitsMillimetre wave
The invention discloses a millimeter wave filtering frequency-selecting assembly, and the assembly comprises: a first single-pole N-throw switch which receives a millimeter wave signal and outputs themillimeter wave signal through one non-fixed output port; a filter bank which comprises N-1 dielectric filters which are connected in parallel between the two switches, wherein the millimeter wave signal output by the first single-pole N-throw switch is filtered by using a corresponding dielectric filter to output a filtered signal; and a second single-pole N-throw switch which receives the filtering signal through one non-fixed input port and outputs the filtering signal through the output port. Each of the first single-pole N-throw switch and the second single-pole N-throw switch comprisesa multi-coupling coil circuit and a transistor control circuit, port isolation is realized by utilizing the multi-coupling coil circuit, and a port load is adjusted by utilizing a load switching technology; and the first single-pole N-throw switch is provided with a fixed output port connected with a 50-ohm load, and the second single-pole N-throw switch is provided with a fixed input port connected with the 50-ohm load. According to the invention, low out-of-band rejection, low insertion loss and high isolation can be realized.
Owner:XIAN CREATION KEJI CO LTD
Combined pump with simple structure and easy installation
ActiveCN108757380BEasy to installReduce volumePositive displacement pump componentsPiston pumpsBiochemical engineeringHigh pressure
The invention relates to a combination pump simple in structure and convenient to install. The combination pump comprises an anode cylinder formed by one or more anode chambers and used for being connected with high voltage, one or more bases used for fixing a getter pump, and the getter pump composed of one or more multi-hole suction materials. The combination pump is characterized in that the bases for fixing the getter pump can also serve as cathodes of a sputter ion pump. The combination pump has the beneficial effects that the bases serve as the cathodes, the size of the combination pumpcan be reduced remarkably, the combination pump can be installed on a standard electrode flange conveniently, and manufacturing, installing and maintaining of the combination pump are facilitated; byincreasing the size of the getter pump in the length direction or increasing the area of the cross section of the getter pump, the loading amount of the getter pump can be adjusted; and installing iseasy, the leak and outgassing rate of a vacuum system can be reduced to the greatest extent, and the combination pump can be connected to a vacuum cavity through one connector at most.
Owner:NANJING HUADONG ELECTRONICS VACUUM MATERIAL
Dual-chamber measuring device for measuring the leakage rate of seals
ActiveCN108562412BLeak rate high precisionAccurate measurementMeasurement of fluid loss/gain rateMeasurement deviceEngineering
The invention relates to a dual-chamber measuring device for measuring the leakage rate of seals. The dual-chamber measurement device includes a base, a loading plate, a sealing cover, a sealing ring and a fixture, wherein the loading plate has a T-shaped cross section, and the loading plate is arranged on the base by means of the sealing ring , the base and the loading plate are sealed by the sealing cover plates at the front and rear sides, thereby forming a sealed box, the seal to be measured is installed on the bottom surface of the base by means of the clamp, The lower end of the loading plate loads the seal and, together with the seal, divides the dual chamber measurement device into a first chamber and a second chamber. The invention can achieve the following beneficial technical effects: the leakage rate of the sealing member can be measured with high precision.
Owner:COMAC +1
Grain die and manufacturing method thereof and granulator
InactiveCN102744909ASmall running resistanceEliminate rolling dead endsShaping pressMaterials sciencePower consumption
The invention relates to a grain die and a manufacturing method thereof and a granulator. The grain die is provided with die holes; and a protuberance inclined toward the two sides of the die holes along the adjacent parts of the die holes is arranged between adjacent die holes. The granulator with the grain die puts the material to be pressed into the grain die, and the grain die is rolled by a compression roller; and due to the protuberance between adjacent die holes, inclined toward the two sides of the die holes along the adjacent parts, the material at the protuberance can move toward the two sides of the die holes along the protuberance in the rolling process, thus the rolling dead angle at the protuberance is eliminated, the running resistance of the compression roller is reduced, the wasted power consumption is reduced, and the output is increased. The grain die performs processing by use of a turning mode, and the mode is simple and easy to implement.
Owner:北京金秸富源科技有限公司
Load changing tool and shock absorber testing device
The invention discloses a load changing tool which comprises at least two loads, a carrier and an extraction device. The carrier is used for bearing loads, and for any load, at least part of the structure of the carrier is made of metal; electromagnets are arranged on the loads, when the electromagnets are powered on, the two adjacent loads can be attracted and connected together, and after the electromagnets are powered off, the two adjacent loads can be separated; when the load of the carrier is changed, redundant loads are adsorbed together, then the redundant loads are taken away through the extracting device, adjustment of the load on the carrier can be completed, the structure is simple, and operation is convenient. The invention further discloses a shock absorber testing device which comprises the load changing tool and the shock absorber. The shock absorber is arranged on the carrier and is used for bearing a load; or, the carrier is arranged on the shock absorber, and the shock absorber is used for bearing the carrier and the load; the load of the shock absorber can be easily adjusted by using the load changing tool, so that the performance of the shock absorber under different load conditions can be conveniently tested.
Owner:无锡市江大隔振器有限公司
Electric-powered actuator and electric braking device
ActiveCN113631824AAdjust loadReduce processing costsBraking element arrangementsMotor/generator/converter stoppersControl engineeringActuator
Provided are an electric-powered actuator (DA) and an electric braking device with which it is possible to effectively operate a reverse-input holding mechanism, and to reduce cost. A control device (2) for this electric-powered actuator comprises: a motor angle estimation means (22a); and a reverse-input holding control unit (24) that has a function in which the electric-powered actuator controls a solenoid (16) when a load is applied, whereby an engagement part (15) is caused to engage with an engaged part and a parking brake mechanism (7) is placed in a reverse-input holding state, and a function in which the engagement part (15) is caused to disengage from the engaged part and the parking brake mechanism (7) is switched from the reverse-input holding state to a reverse-input holding release state. The reverse-input holding control unit (24) has an engagement intermediate control function unit (24a) that controls an estimated rotation angle so that, when the engagement part (15) is caused to engage with the engaged part, and when the engagement part (15) is disengaged from the engaged part, the engaged part and the engagement part (15) reach a set positional relationship within a fixed period of time.
Owner:NTN CORP
Method and device for distributing idle user equipment in multi-carrier based mobile communication system
ActiveCN107197481AAdjust loadNetwork traffic/resource managementAssess restrictionCarrier signalComputer terminal
Owner:SAMSUNG ELECTRONICS CO LTD
A jbod cascade system
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD
Mobile agent based stream media multicast network implementation method and system
ActiveCN101212329BAdjust loadSpecial service provision for substationStore-and-forward switching systemsMulticast networkStructure of Management Information
The invention relates to a method for realizing streaming media multicast network based on a mobile Agent, which comprises the following steps: (1) a multicast function collection D and the mobile Agent group containing the function collection are collected; (2) information of the function collection D is released by a multicast server to all rediffusion nodes in the multicast network; (3) functions which are not contained by the rediffusion node are added; (4) the mobile Agent of the rediffusion node is customized; (5) all rediffusion nodes in the multicast network are searched by the multicast server to add the rediffusion node, to delete the rediffusion node, to recombine the rediffusion structure and to check whether the nodes are all updated. The invention has the advantages that: the mobile Agent theory is introduced into realization of the multicast network of the streaming media application layer, which allows the topology of the multicast network to automatically reconstruct according to the network change; the multicast network is automatically reconstructed according to the network change; content and form of the multicast service are dynamically added and subtracted; load of the rediffusion service is adjusted by comprehensively considering situations of a plurality of users in the region.
Owner:ZHEJIANG UNIV OF TECH
Over-voltage protection arrangement having a horn gap located in an insulating housing having a deionization chamber for arc extinguishing
ActiveCN112262509AAssessment loadAdjust loadSpark gap detailsSpark gaps with auxillary triggeringPhysicsPower grid
The invention relates to an over-voltage protection arrangement comprising a horn gap (1) located in an insulating housing having a deionization chamber (4) for arc extinguishing, wherein the deionization chamber has a plurality of extinguishing plates (9), which are spaced apart from each other, and a trigger electrode (7) is located in the ignition region of the horn gap, wherein a disconnectingdevice has a fuse element (8), which is located in the region of the deionization chamber, and is subjected to a load there caused by power follow current, wherein the fuse element holds a, preferably spring force supported, disconnecting element (15) in a first position and releases said disconnecting element upon melting, such that the disconnecting element assumes a second position, wherein, upon the second position being reached, an electrical connection to the trigger electrode (7) is interrupted and the trigger electrode is thus disconnected.
Owner:デーンエスエープルスツェオーカーゲー
Method for determining parameter threshold in search service and related equipment
The invention discloses a method for determining a parameter threshold in a search service and related equipment. The method for determining the parameter threshold in the search service comprises thesteps: obtaining the performance data of a search server in a process of providing the search service in real time; determining a performance index corresponding to the performance data; comparing the performance index with a preset performance index, and generating a first parameter threshold of a target search parameter when a comparison result meets a preset condition; sending the first parameter threshold of the target search parameter to the search server, wherein the search server provides a search service according to the first parameter threshold of the target search parameter. According to the method, the first parameter threshold value of the target search parameter is associated with the real-time performance data of the search server in the search service to realize dynamic change, so that the load of the search server can be effectively adjusted, the change of the parameter threshold value is completely automatic, the process is simple, and the maintenance is easy.
Owner:TENCENT TECH (SHENZHEN) CO LTD
A kind of preparation method and catalytic application of nanocomposite material of ruthenium
ActiveCN105772082BSmall particlesUniform grain sizeOrganic-compounds/hydrides/coordination-complexes catalystsSulfonic acid amide preparationChemical compositionNano composites
The invention provides a method for synthesizing a metal ruthenium nanoparticle catalyst using melon rings and reduced graphene oxide as co-carriers, and applies the catalyst to the catalytic synthesis of aromatic sulfonamide compounds. The chemical components of the nanoparticle catalyst of the present invention are metal ruthenium, cucurbit and reduced graphene oxide. Melon rings and reduced graphene oxide are used as co-carriers. The electrostatic interaction and volume effect of melon rings effectively prevent the agglomeration of reduced graphene oxide, and the prepared ultra-small Ru nanoparticles are uniform and evenly dispersed. The nanoparticle catalyst prepared by the invention has excellent catalytic activity and stability, and can efficiently catalyze the reaction of sulfonamide and aromatic alcohol to prepare aromatic sulfonamide compounds. The catalyst can be reused many times without significant decrease in activity. This method has the characteristics of simple synthesis, convenient operation, wide application range, mild preparation conditions, simple method, no need for special equipment, and relatively low cost.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
Method and device for distributing idle user equipment in a multi-carrier based mobile communication system
ActiveCN104054285BAdjust loadNetwork traffic/resource managementAssess restrictionTelecommunicationsCarrier signal
Owner:SAMSUNG ELECTRONICS CO LTD
Method for constructing ruthenium terpyridyl electrochemiluminescence sensor with graphene porous material
InactiveCN105181772BIncreased porous structureIncrease surface areaMaterial electrochemical variablesPorous grapheneFreeze-drying
The present invention discloses a method for constructing a terpyridyl ruthenium electrochemiluminescence sensor from a graphene porous material. The method is as below: first, reducing graphene oxide composite material freeze-dried graphene three-dimensional porous material (porous graphene, PGR) by high-temperature; fixing terpyridyl ruthenium (Ru(bpy)3<2+>) to a PGR modified glassy carbon electrode by using Nafion ion exchange effect; and successfully applying the sensor to detection of tripropylamine. The linear range is 1*10<-6> to 1*10<-4>M, and the test line is 1*10<-9>M. The sensor has excellent stability and repeatability.
Owner:SHANDONG UNIV
Catalyst for refining coking crude benzene and preparation method thereof
ActiveCN103977810BAdjust loadImprove bindingCatalyst activation/preparationMetal/metal-oxides/metal-hydroxide catalystsBenzeneHydrogen
The invention discloses a catalyst for refining coked crude benzene. At the same time, the invention also discloses a preparation method of the catalyst. The catalyst adopts a spherical gamma-Al2O3 carrier, an active components is dipped by use of a co-dipping method, and is particularly dipped in an Al (OH) 3 solution, cobalt and molybdenum can better combined with the carrier, the carrier is completely wrapped to form a crystalline body without introduction of other impurities; the preparation method can regulate loading amount of the active component, atomic ratio and calcination temperature of the active component, and the prepared catalyst is far higher in hydrogen desulfurization activity and three benzene retention rate compared with catalysts of the same kind; at the same time, by use of the co-dipping method, the catalyst preparation cycle is shorter, the preparation process is more convenient, and the preparation method is more conducive to industrial production.
Owner:无锡市强亚耐火材料有限公司
Rotational flow ultralow NOX gas burner
PendingCN111964048AAvoid disturbanceSpray evenlyGaseous fuel burnerCombustion apparatusGas pipelineNitrogen oxides
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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